JPH07104231B2 - Sampling system - Google Patents

Description

TECHNICAL FIELD The present invention relates to various synthetic resin manufacturing industries such as paint resins, adhesive resins, and ink pastes, food manufacturing industries such as mayonnaise and chocolate, and cosmetics manufacturing industries such as creams. The present invention relates to a sampling system adopted in the process of handling a fluid.

[Background Art] In the process of handling fluids such as paint production lines, a part of the fluids is taken as a sample from the system and its properties are inspected to ensure quality at all times. I have to.

As a sampling means for that purpose, as shown in FIG.
A sampling pipe 2 attached to a flow path body 1 such as a reaction tank is equipped with a sampling pulse 3 and the valve 3 is opened so that a fluid can be taken out to a lower collection container 4 through the sampling pipe 2. There is. In this case, since the fluid remains between the collection port of the flow passage 1 and the valve 3, if the fluid to be handled next is different, the previous residue is completely removed. It is necessary to perform the edge cleaning, but about 2 to 3 fluids are used for the cleaning, which causes a loss of the product. Since the sampling container 4 is of an open top type, if the fluid is at a temperature of 200 ° C. or higher as in the esterification reaction step of the alkyd resin and the solvent gas contained therein is diffused to the surroundings, the sampling operation Is dangerous and unsanitary. It takes a lot of time to clean the collection container 4, and especially when the target is a fluid of high viscosity such as the alkyd resin, the cleaning becomes extremely difficult. If the fluid is a material that increases the cross-linking property as the reaction progresses over time,
These fluids persistently remain in the sampling valve 3 and the sampling tube 2, obstructing the opening and closing of the valve 3 and narrowing the inner diameter of the sampling tube 2. As a result, it is necessary to remove the residue in the sampling valve 3 and the sampling tube 2 even if the sample is sampled only a few times. Since the collection container 4 with an open top is carried by hand, if the fluid is hot or is a poisonous substance, it is dangerous to carry it and should be spilled carefully. It was necessary to pay, and it was extremely troublesome to carry. It goes without saying that the above-mentioned various operations are labor intensive.

As a device capable of solving some of the above problems associated with the sampling operation, there is a sampling device described in Japanese Patent Laid-Open No. 59-231434. In this device, a cylinder with a piston is provided on the peripheral wall of a reaction container, etc., and a capsule (collecting tool) is attached to this cylinder to collect the fluid in the capsule and carry it to the intended inspection place. It has become.
However, this sampling device is concerned only with the sampling work of the sampling system, and is only concerned with closing the sampling work, and does not solve the above-mentioned problems in the entire sampling system. . A sample is taken into a capsule by temporarily evacuating the inside of the capsule and sucking with this vacuum force, so a vacuum generator is required, and the vacuum force inside the capsule becomes weaker as the suction progresses. However, there is a drawback that it is difficult to collect a highly viscous sample.

[Object of the Invention]

In view of the above circumstances, the present invention makes it possible to automate all the processes of the sampling system, to save labor and to close them, thereby ensuring safety on the sampling system and shortening the time required for all processes, and at the same time, to a vacuum device. It is an object of the present invention to provide a sampling system that does not require the above and that can also collect a highly viscous sample.

[Disclosure of Invention]

In order to achieve the above object, the present invention provides a fluid extractor for extracting a part of the fluid from a system containing the fluid and an empty collecting tool facing the fluid extractor. Sampling means for collecting a part of the fluid as a sample from the extraction means to the sampling tool, sample sampling means for sampling the sample from the sampling tool after sampling, and sampling tool for the sampling tool after sampling Means for transporting the empty collection tool to the fluid extractor means from the sample removal means, and the collection tool has a tip opening. The sample extraction means has a cylinder serving as a sampling port and a piston provided in the cylinder, and the fluid extractor has a communication port to which the sampling port of the cylinder is set. The sampling port of the cylinder is The sample is sampled into the cylinder by the movement of the piston and is set at the communication port of the fluid extractor, and further, the sampler has a lock mechanism capable of locking the advance / retreat operation when the piston retracts. The sample extracting means is provided with a fixture for holding the cylinder with the sampling port of the sampling tool received from the first transfer means facing downward, and an elevating means for elevating the piston with respect to the cylinder, Below the sampling tool held by the fixture, a measuring means having a measuring tank, a residual amount discharging means having a residual amount discharging tank, and a cleaning means having a cleaning liquid receiving tank are partially arranged. Therefore, the gist of the cleaning liquid receiving tank of the cleaning means is a sampling system that is movable up and down relative to the sampling tool.

Hereinafter, the present invention will be described in detail with reference to the drawings showing an embodiment thereof.

1 to 14 show an embodiment of a sampling system according to the present invention.

As shown in FIG. 1, this system includes a fluid extractor A, a sampler B, a first carrier C, a sample extractor D, and a second carrier E. The fluid extractor A extracts a part of the fluid from a system (a reaction tank in this embodiment, but it may be a transport pipe of the fluid) 10 containing the fluid. The sampling means B is an empty sampling tool.
40 is exposed to the fluid extractor A, and a part of the fluid is sampled from the extractor A to the empty sampling tool 40 as a sample. The first transporting means C transports the sampling tool 40 after sampling the sample from the sampling means B to the sampling means D. The sample extracting means D extracts the sample from the sampler 40 after the sample is collected. The second carrying means E carries the empty collecting tool 40 from the sample extracting means D to the fluid extracting means A. These will be described in detail below.

As shown in FIGS. 1 and 2, the fluid extractor A includes a cylindrical cylinder 12 attached to a bottom peripheral wall 11 of a reaction tank (fluid passage) 10. This cylinder 12
Has a structure in which it communicates with the inside of the reaction tank 10 through an extraction port 13 opened in the peripheral wall 11. Inside the cylinder 12, a piston 15 having two stages (or one stage) of a first ceiling 14 provided on the outer peripheral portion of the tip is provided so as to reciprocate vertically. The tip surface of the piston 15 is a push surface 16 that is orthogonal to the central axis of the piston. A mounting cylinder 17 is joined in series to the lower end of the cylinder 12, and a drive means 18 composed of a cylinder and a piston is mounted to the lower end of the mounting cylinder 17 and its piston rod 19 is the lower end of the piston 15. It is joined to the part. While the piston 15 is prevented from naturally descending by the descent prevention mechanism 20 provided on the upper peripheral wall of the mounting cylinder 17, its maximum rising position is determined by the flange 21 provided at the lower end thereof. . The stopper 22 of the descent prevention mechanism 20 is movable back and forth so as to obtain a state of standing by in a recess 23 formed in the peripheral wall of the mounting cylinder 17 and a state of protruding from the recess 23. That is, the stopper 22, when the piston 15 is at the top,
As shown in the figure, the piston 15
When the piston 15 moves up and down by the action of the driving means 18, it is kept in the recess 23 so as not to hinder the up and down movement of the piston 15. The fall prevention device 20 prevents the piston 15 from naturally descending due to the pressure in the reaction tank 10 or the head pressure of the fluid. A second sealing 24 is provided on the upper surface of the flange 21, and when the piston 15 is at the uppermost position, the second sealing 24 hits the lower surface of the cylinder 12 and prevents fluid from leaking out of the cylinder 12. . On the peripheral wall of the cylinder 12, there is formed a communication port 25 that expands outwardly in a tapered shape. The communication port 25 has the same pushing surface 16 when the piston 15 is at the lowermost position as shown in FIG. It is positioned so as to be below the communication port 25. On the outside of the communication port 25, a set recess 26 that is wider than the communication port 25 is provided. The set recess 26 is a straight round hole,
The wall surface on the back side is the contact receiving surface 27 of the sampling tool 40.

Next, the sampling means B will be described. The sampling means B is
Setting means B _{1 of the} sampling tool for receiving the empty sampling tool 40 from the second transport means E and facing the fluid extractor means A, and then transferring the sampling tool 40 after sampling to the first transport means C The empty sampling tool 40 supported by the means B ₁ is set in the fluid extractor A, and then the set is removed, and the sampling tool attachment / detachment means B ₂ and the empty sampling tool 40 set in the fluid extractor A are set. The sampling operation means B ₃ for causing the sampling operation to be performed by the above three means.

The setting means B ₁ is provided with a disc-shaped indexing rotor 30 as seen in FIGS. 1 and 4. The rotor 30 is a cylinder 12 provided in the fluid extractor A.
It is attached to one end of a drive shaft 31 which is horizontally and rotatably supported on the side of, and is rotated by the action of the drive shaft 31. U-shaped receiving grooves 32 are arranged on the outer peripheral portion of the rotor 30 at intervals of 120 degrees. The rotor 30 stops every rotation of 120 degrees, but at this stop position, each receiving groove 32 has the lowest end position P ₁ and two upper positions P ₂ and P ₃ as shown in FIG. To face each. The rotor 30 receives the new sampling tool 40 from the second transfer means E in the receiving groove 32 which comes to the P ₂ position, and 120
Rotate once to bring the sampling tool 40 to the P ₃ position. In these _three positions, the sampling tool 40 faces the communication port 25 provided in the cylinder 12 of the fluid extractor A. The rotor 30 is further rotated 120 degrees, so that the sampling tool 4
Carry 0 to the P ₁ position and place the sampling tool 40
The carrier C is naturally dropped. The rotor drive shaft 31 is rotationally driven by an indexing motor 33 and an index unit 34, as shown in FIG.

The sampling tool 40 is provided with a cylinder 41 and a piston 42, as shown in the enlarged cross section of FIGS. 2 and 3. The cylinder 41 has a cylindrical shape, and a third sealing 44, which is in close contact with the contact receiving surface 27 of the extracting means A, is attached to the tip end surface thereof, and the insertion portion 43 projects from the center thereof. Third ceiling 44
Prevents leakage of the sample at the time of sampling and invasion of air from the outside to ensure the sampling. A thin straight through hole at the center of the insertion portion 43 is defined as a sampling port 45. Piston 42
A projection 46 is provided at the tip of the piston so as to prevent the clogging of the sampling port 45 when it goes in and out of the sampling port 45 when the piston 42 advances and retracts. A guide groove 47 is formed on the outer peripheral portion of the front end of the cylinder 41 so as to be guided by the guide rail 132 of the second transfer means E described later to guide the rolling of the sampling tool 40, and the rear end portion thereof is detachable. A cap 49 is attached via the fourth sealing 48. By removing the cap 49, the inside of the sampling tool 40 can be washed. This is advantageous because precision cleaning can be performed in advance even when handling a sample that is particularly resistant to contamination. The piston 42 is provided with the front and rear two-stage fifth sealings 50, 50 on the outer peripheral portion thereof, and the front portion is an extruded taper surface 51 which is tapered toward the front. The front inner peripheral surface of the cylinder 41 serves as a taper-shaped extrusion receiving surface 52 with which the extrusion tapered surface 51 abuts when the piston 42 advances. Piston 42
The rod 53 has a lock groove 54 on a part of its outer circumference. The lock groove 54 has an outer peripheral circle which is smaller than the outer peripheral surface of the piston rod 53 and is eccentric and inscribed.
That is, the groove 54 is gradually deeper in the circumferential direction from a reference portion (upper end portion in the figure) on the outer peripheral surface of the rod 53, and is deepest at a position shifted by 180 degrees from the reference portion. On the other hand, the cap 49 is formed with a radial through hole,
A lock piece 56 biased from the back by a spring 55 is fitted into this through hole. The lock piece 56 is fitted into a deep position of the lock groove 54 when the piston rod 53 is retracted, and locks the rod 53 so as to stop the rod 53 at the most retracted position. When the rod 57 is rotated by the handle 57 provided at the rear end portion of the piston rod 53, the lock piece 56 is adjusted so that the deep portion of the lock groove 54 gradually becomes shallow to the outer peripheral surface of the rod 53. Therefore, the lock piece 56 escapes from the lock groove 54 while retracting against the biasing force of the spring 55, and the lock is released. As a guide for the position where the lock is released, both the cap 49 and the piston rod 53 are marked with alignment marks.When this alignment mark is aligned by rotating the handle 57, the lock piece 56 will be located outside the lock groove 54. It will be located on the outer peripheral surface of a certain rod. This allows the piston rod 53 to move back and forth. This locking mechanism prevents the sample from leaking outside due to the unnecessary movement of the piston 42 due to the weight of the piston 42 and the rod 53 and the external force applied to the handle 57.

The collecting tool attaching / detaching means B ₂ is provided with a cylinder 60 for driving the collecting tool, as shown in FIGS. 1 and 5. The cylinder 60 is provided on a fixed frame 61 and reciprocates an advancing / retreating body 62 attached to the cylinder 60 in the horizontal direction. The advancing / retreating body 62 connects the opposing frame portions 63 and 64 to each other.
It is integrated by 65, and the sampling tool is
It has a holding groove 66 for receiving and holding the caps 49 of 40 from the direction orthogonal to the axial direction thereof. When the cap 49 is fitted in the holding groove 66 and the sampling tool 40 is held by the advancing and retracting body 62, the cylinder 60 reciprocates to move the sampling tool 40 forward and backward. When the third sealing 44 of the collecting tool 40 hits the contact receiving surface 27 provided at the communication port 25 of the fluid extracting means A by this forward movement, the insertion portion 43 at the tip of the collecting tool 40 communicates with the communicating port 25 of the fluid extracting means A. It is inserted with a little clearance inside, and the setting of the sampling tool 40 is completed (see FIGS. 2 and 3). However, it may also be adapted to be inserted without gaps.
When the cylinder 60 retracts, the sampling tool 40 moves the fluid extraction means A.
Get out of.

The sampling operation means B ₂ is, as shown in FIGS. 1 and 5,
A cylinder 70 supported by one frame portion 63 of the collecting tool attaching / detaching means B ₂ is provided. The cylinder 70 is a fluid extractor A.
It works to retract the piston 42 of the sampling tool 40 in the state of being set to. That is, the cylinder 70 has a U-shaped frame 72 at the tip of its piston rod 71, and the tip 57 of the frame 72 hooks the handle 57 of the sampling tool 40 to remove the sampling tool 40.
Of the fluid extracting means A by retracting the piston 42 of
A part of the fluid in 12 is sucked into the cylinder 41 of the sampling tool 40 as a sample through the communication port 25 and the sampling port 45.
This U-shaped frame 72 is a space that does not hit the handle 57 that retracts with the piston 42 of the sampling tool 40, that is, the width within the frame 72 is larger than the diameter of the handle 57, and the length of the frame 72 in the front-rear direction is the handle 57. Since the piston rod 71 is extended, the piston rod 71 receives the handle 57 in the pushed-in state of the sampling tool 40, which is sent next by the indexing rotor 30, and the first part of the sampling tool 40 is received. Carrier C
It has a double-sided open space that allows it to fall onto the ground without resistance.

Next, the 1st conveyance means C is demonstrated. Same first transporting means C
As shown in FIGS. 1 and 4, includes a chute 80, an air transportation means 81 and a relay portion 85. Shoot 80
Receives the sampling tool 40 after sampling and slides it down.
The relay section 85 is installed at the lower end of the chute 80,
The falling collecting tool 40 is contained in a capsule, and the air transport means 81
Send to. The air transport means 81 sends the capsule containing the sampling tool 40 from the relay section 85 to the sample extracting means D. These will be described in detail below.

As shown in FIG. 6, the chute 80 is a U-shaped (or tubular) passage having a bottom plate 82, and is inclined downward at a constant angle from the upper end to the lower end. . The chute 80 is arranged in a bent shape or in a straight shape having the illustrated bent portion 83 according to the situation at the site. As shown in FIG. 6, on the bottom plate 82 of the chute 80,
Two guide rails 84, 84 made of tubes are arranged in parallel. The upper ends of the rails 84, 84 are slightly expanded so that the collecting tool 40 falling from the position P ₁ of the rotor 30 of the setting means B ₁ can be reliably received. The following parallel parts of the rails 84, 84 are
Slide down naturally while guiding 0. Therefore, the guide rail 84 is made of a resin material or the like so as to be slippery. As shown in FIG. 7, the lower end of the chute 80 is vertical and faces the relay portion 85. Inside the relay portion 85, the lower end portion of the transportation pipe 87 provided in the air transportation means 81 also faces. A switching pipe 86 pivoted at the lower end and swinging at the upper end as shown in the figure is provided in the relay portion 85, and the upper end opening of the switching pipe 86 is also transported to the chute 80 by the swinging. You can go to 87. Transport pipe
Within 87, capsule 88 as shown in Figs. 8 and 9
Reciprocates between the relay section 85 and the sample extracting means D. The capsule 88 sent from the sample extracting means D is a switching pipe.
It is rocked to the chute 80 side by 86, and is waiting for the sampling tool 40 to fall. The capsule 88 has a cylindrical container having a bottom and an upper opening as an outer shell 89, and a container portion 90 having a cushioning property and a heat retaining property is provided inside thereof. The container 90 has an open upper end and a bottom 90a that is tapered toward the bottom. In the capsule 88, the collecting tool 40 is housed with its tip facing downward, and the tip is the bottom of the capsule.
It fits well with the tapered shape of 90a. It should be noted that the insertion part 43 of the collection tool 40 is preferably designed so as not to hit the capsule bottom 90a, as shown in the figure. If the container 90 can be removed from the outer shell 89, even if the sample leaks from the sampling tool 40, the leaked substance can be easily removed. Rings 91, 91 are arranged in two steps on the outer periphery of the outer shell 89,
A cap 92 is detachably attached to the upper end portion. The upper end opening of the cap 92 serves as a receiving port 93 of the sampling tool 40 that drops downward with the tip end thereof. Below the receiving port 93, a slip-out stopper 94 made of a leaf spring material ... Are arranged radially from above. These escape stoppers 94 are arranged in an inverted V shape as shown in FIG. 9 in which the capsule 88 is viewed in a longitudinal section, and their lower ends are slightly separated from each other. The stoppers 94 ... Allow the falling collecting tool 40 to pass through, but restrict the coming out in the opposite direction. The transport pipe 87 extends from the relay section 85 to the sample extracting means D, and its outlet is located inside the sample extracting means D. This transport pipe 87 has a length of 1 km, for example.
It can be used even if it is above the above or if the height difference is 100 m or more. The transport pipe 87 is arranged in a bent shape or a straight shape according to the situation at the site.

Next, the sample extracting means D will be described. Same sample extraction means D
As shown in FIG. 10, a measuring station 110 is provided, and a capsule entrance / exit 95 that is an upper end opening of the transport pipe 87 is located inside one side of the station 110. The empty capsule 88 is opened and closed through the open door 96.
Placed in and pumped (suction or free fall may be used)
Is transferred to the relay section 85, and after storing the sampling tool 40, it is returned to the entrance / exit 95 again by suction (which may be pressure feeding or natural dropping). These blows and suctions are performed by the blower 97. Suction / exhaust pipe connected to the blower 97
98 and 99 are switched by a switching valve 101, and the pressure feeding and suction are performed. The intake / exhaust communication pipe 102 is provided with an opening adjustment damper 100 in the middle thereof.

The sample extracting means D is, in addition to the means for receiving the collecting tool 40,
As shown in FIG. 11, the shift device 111 is provided, and the measuring device 112, the residual amount discharging device 113, and the cleaning device 114 are provided on the shift device 111. The shift device 111 is such that the table itself reciprocates in the direction of the arrow, and each means 112 installed thereon is
113, 114 below the lifting cylinder 115, that is, the sampling tool 40.
It is designed to be moved to each position. The cylinder 115 has a clamp 11 at the lower end of its rod 116.
7 is provided so that the handle 57 of the collecting tool 40 is held and moved up and down. The cylinder 41 of the sampling tool 40 is held at a fixed height position by the fixing tool 118. The weighing means 112 is a weighing device 11 mounted on the shift device 111.
9 and a weighing receiving tank 120 placed on it. When the piston rod 53 is pushed downward by the descending operation of the rod 116 of the lifting cylinder, the sampling tool 40 fixed in position by the fixing tool 118 ejects the sample held therein into the measuring tank 120. . The sample is weighed by the weighing device 119 and transferred to the weighing receiving tank 120 by a predetermined amount. After this measurement is completed, the shift device 111 moves the remaining amount discharging means 113 to a position below the sampling tool 40. The discharge means 113 includes a remaining amount discharge receiving tank 121. When the rod 116 of the lifting cylinder is further lowered, all the sample remaining in the sampling tool 40 is discharged into the receiving tank 121. After that, the shift device 111 moves the cleaning means 114 to below the sampling tool 40. This cleaning means 114 is
It includes a lifter 122 and a cleaning liquid receiving tank 123 placed on the lifter 122. When the cleaning liquid receiving tank 123 is lifted by the lifter 122, the tip end of the sampling tool 40 is dipped in the cleaning liquid inside,
To be washed. By repeating the vertical movement of the rod 116 of the elevating cylinder, the cleaning liquid enters and leaves the sampling tool 40, and the cleaning can be sufficiently performed.

12 and 13 show another embodiment of the shift device. In the above-mentioned shift device 111, the mounting table itself moved to exert a shift action, but this shift device 111 'has a built-in shift mechanism as described below. That is, as shown in the figure, two cylinders 124, 124 'arranged in series and their respective piston rods 125, 125' are provided, and these cylinders 124, 124 'carry the lifting device 126 and the base of the shift device 111'. The measuring means 112, the remaining amount discharging means 113, and the cleaning means 114 arranged above are moved to respective positions. The elevating device 126 drives the elevating mechanism composed of the screw shaft 127 and the nut 12 at each position, so that the measuring receiving tank 120 of the measuring means 112 and the remaining amount discharging receiving tank 121 of the remaining amount discharging means 113 can move a predetermined amount. After measuring the sample and discharging the remaining amount, the lifter 122 is driven and the cleaning means 1
The washing solution receiving tank 123 of 14 completes the washing of the inside of the sampling tool 40. In the figure, the same reference numerals as those in FIG. 11 represent the same mechanical portions.

Next, the second transport means E will be described. As shown in FIG. 14, the second conveying means E includes a conveying path 130 having a U-shaped cross section with the groove opening side facing upward. This transport path 130
Is installed so that the sampling tool 40 falls naturally by inclining the whole with an inclination angle of 2 degrees or more,
The upper end of the inlet is located on the sample extracting means D side, and the lower end of the inlet is provided in the sample collecting means B.
It faces the vicinity of 30. The transport path 130 is arranged in a bent shape or a straight shape according to the situation at the site. A guide rail 132 in which the guide groove 47 of the sampling tool 40 is fitted and a guide groove 133 in which the rear cap 49 of the sampling tool 40 is fitted are respectively provided in the bottom portion 131 of the transportation path 130 in the extending direction of the transportation path 130. It is provided for. The sampling tools 40 ... Moved from the sample extracting means D to the second transporting means E are guided by the above-mentioned guiding means so that the handle 57 is contracted and in the lengthwise direction of the transporting path 130. With the axes centered in the orthogonal direction, they roll side by side and reach the position of the sampling means B. The collection tools 40 are arranged side by side to prevent biting between the collection tools and between the collection tool and the guide rails. Each sampling tool 40 is then indexing rotor 30
Since it is regulated by the outer peripheral surface of the sheet, as shown in FIG. 4, a large number are held at the exit of the transport path 130 and stand by in preparation for the next sampling. That is, the transport path 130 also serves as a stocker for the sampling tool 40. The guide groove 47 of the sampling tool 40 may be a convex portion, and the guide rail 132 of the transport path 130 may be groove-shaped.

As described above, the collection tool 40 is retained in the transport path 130 while its rod 53 is contracted and is empty. Collection tool 40
Is set so that the lock piece 56 is automatically fitted in the lock groove 54 by rotating the handle 57 and aligning the above-mentioned marking. These sampling tools 40 ...
When the indexing rotor 30 rotates and its receiving groove 32 comes, it is received in the groove 32 one by one. Accepted sampling tools 40
As shown in FIG. 1, when the indexing rotor 30 is rotated by 120 degrees and stopped, the sampling port 45 of the sampling tool faces the front of the communication port 25 of the fluid extractor A, and at this point, sampling is performed. in (a retracted position) within 66 holding groove of the cap 49 of the tool desorption means, collecting tool handle 57 (in the advanced position) frame of the collection operation means B ₃ accepted respectively 72. Thereafter, the collecting tool 40 is moved forward by driving the detaching cylinder 60, and as shown in FIG. 2, the insertion portion 43 thereof is fitted into the communication port 25 of the fluid extracting means to form the collecting port 45. The communication port 25 comes to communicate. Along with that, the cylinder of the sampling tool
The third sealing 44 of 41 is the set recess 26 of the fluid extracting means.
The communication opening 25 and the set recess 26 are applied to the contact receiving surface 27, and the space is completely sealed. The driving cylinder 70 of the sampling operation means moves forward together with the detaching cylinder 60, and the piston 42 of the sampling tool moves forward. At this point, the drop prevention mechanism 20 provided in the fluid extraction means unlocks the flange 21 of the fluid extraction piston 15, and the piston 15 is pushed down to extract the fluid in the reaction tank 10 from the extraction port. It is pulled out into the cylinder 12 through 13. When the piston 15 descends to the lowermost portion, the communication port 25 opens and the fluid flows into the communication port 25. At this time, if the piston 15 makes a reciprocating motion several times, the dust and the like at the bottom of the reaction tank 10 will not enter the cylinder 12. After that, the cylinder for detaching
With 60 as it is, drive cylinder 70 only to drive the frame
When 72 is retracted, the piston 42 of the sampling tool retracts, as shown in FIG. By this retreat, the sampling port 45 is opened, and the fluid in the extraction cylinder 12 flows from the communication port 25 to the sampling port.
Collected in the collection tool 40 through 45. Then, the piston 42 of the sampling tool has the lock piece 56 that acts as a rod by the action of the spring 55.
By automatically fitting in the lock groove 54 of 53, it is locked in that position. This lock is held until the sampling tool 40 reaches at least the sample extracting means D. After the sample withdrawing operation, the collecting tool 40 is retracted by retreating the detaching cylinder 60 to release the setting for the sampling operation, and the indexing rotor 30 is rotated 120 degrees to put the sampling tool 40 after sampling. The receiving groove 32 being opened is made to face downward. Then, the collecting tool 40 after collecting the sample spontaneously falls, is separated from the sample collecting means B, and is received in the chute 80.

The above-mentioned sample is not collected by temporarily vacuuming the inside of the sampling tool 40, but by the pumping force of the cylinder 41 and the piston 42 of the sampling tool 40. Of course, especially high viscosity (100 poise or more)
It is possible to collect even the sample.

Incidentally, as shown in FIG. 1, the sampling operation means B ₃ may be provided with an auxiliary cylinder 58 further behind the driving cylinder 70. That is, in the above embodiment, in a state of being pressed against the extraction syrin 12 of the collecting tool 40,
The piston 42 in the sampling tool 40 is moved to the most retracted position by the drive cylinder 70, that is, the lock groove 54 is moved to the position where it is locked by the lock piece 56, and the sampling tool 40 is sampled to the full extent inside the sampling tool 40. The cylinder 60 was removed from the extraction cylinder 12, but when this auxiliary cylinder 58 was used in combination, the piston cylinder 42 was not fully retracted and the driving cylinder 70 was stopped so that it stopped a little before the last retracted position. To operate. Then, there will be a margin of stroke from the front position to the last retracted position,
The suction amount corresponding to this remaining stroke remains in the sampling tool 40. Therefore, next, the remaining stroke is set as the operation for only the auxiliary cylinder 58. That is, when the piston rod of the auxiliary cylinder 58 is retracted, this movement is transmitted to the piston rod 53 of the sampling tool 40 via the drive cylinder 70 in the non-operating state, and the piston rod 53 of the sampling tool 40 causes the remaining stroke. Move back by minutes. That is, with the sampling tool 40 still in contact with the extraction cylinder 12, only its piston 42 is retracted by the remaining stroke. Due to this retreat, a suction force is generated at the sampling port 45. At this time, the extraction piston 15 has already risen to the uppermost part and closes the inner end of the communication port 25, so that the sample remaining in the communication port 25, the set recess 26, and the sampling port 45 is retained. All the residue is sucked into the sampling tool 40. By the so-called two-step pulling operation in which the cylinders are combined in two stages, the leakage of the sample from the sampling port 45 of the sampling tool to the outside is effectively prevented, and the residue that adheres to the inside of the communication port 25 of the fluid extractor A is retained. By eliminating the fluid, contamination and clogging of the sample can be effectively prevented.

In the chute 80 of the first conveying means C, as shown in FIG. 1, the sampling tool 40 after sampling is always guided by the two guide rails 84, 84 with the tip thereof directed obliquely downward, It is always introduced in a fixed posture in the relay portion 85 at the lower end of the chute. On the guide rails 84, 84, the sampling tool 40 straddles between the two and is smoothly guided along the laying shape of the rail such as a curve, so that the sampling tool 40 falls without being excessively shocked or damaged. Even if the sample leaks from the sampling tool 40, the leaked sample does not go out of the rails 84, 84.Therefore, there is a risk that the sample adheres to the slope surface of the chute 80 and causes inconvenience. Not much. It goes without saying that the leakage of the sample itself is usually effectively prevented by locking the piston 42 with the lock piece 56 and the lock groove 54. If the chute 80 is provided with a vibrator, the sampling tool 40 can be smoothly slid down naturally due to its vibration feeding function even if the chute 80 has a small inclination. As a result, the overall height of the device can be reduced.

The collecting tool 40 falls into the switching pipe 86 of the relay section 85 and is accommodated in the capsule 88 waiting in the pipe 86 before the switching pipe 86. The collection tool 40 is attached to the capsule by a stopper 94.
88 Pneumatic transportation means 81
Is carried to the sample extracting means D. When the container 90 in the capsule 88 is made of a heat insulating material, when the sample is hot or cold, it can be warmed and transported in an effective state. Even when the distance to the sample extracting means D is long and the height difference is large, the air transporting means 81 can reliably transport the material in a very short time. This is a great advantage for this type of sampling operation, which requires real-timeness.

When the capsule 88 arrives at the sample extraction means D, there,
As shown in FIGS. 11 to 13, only a fixed amount of sample is taken out by the measuring means 112. The sample extracting means D is
Since it is automated, it is safe and has good workability even if the sample has a high temperature or a high viscosity. In this case, since the sample is taken out by the elevating cylinders 115 and 126 with a high discharge capacity, the minimum necessary sample amount is sufficient, which is advantageous when an expensive sample is taken, and the remaining amount is It is also advantageous in the case of a sample or the like that is difficult to treat. In addition, the sample is taken out not by the method of opening the sampling tool downward, but by the pumping force of the cylinder 41 and piston 42 of the sampling tool 40, so that a particularly high viscosity (1000 poise or more) is obtained. For samples, for example, sampling tools
It is possible to take out 95% or more of the inner volume of 40.

The sample taken out is subjected to an inspection or the like in an inspection unit (not shown) or the like arranged in the station 110 or its vicinity. As a result, if there is an abnormality in the sample, countermeasures can be taken online in real time. Almost all of the sample in the collecting tool 40 is discharged by the residual amount discharging means 113, and is completely washed and removed by the cleaning means 114. This cleaning is performed by the fifth sealing 50, 5 of the piston 42 of the sampling tool 40.
When 0 reciprocates on the inner peripheral surface of the cylinder 41, and the clogging prevention protrusion 46 provided at the tip of the piston 42 repeatedly reciprocates inside the sampling port 45, the cylinder 41
It reliably reaches a wide range from the inner peripheral surface of the to the sampling port 45.
Since the clogging prevention protrusion 46 sequentially cleans the sampling port 45,
This also allows the collection of samples containing solids. The dimensional relationship in this case is, for example, that the clogging preventing projection 46 has a diameter of about 2 mm, and the opposite side sampling port 45 has an inner diameter of about 3 mm.

For the washed sampling tool 40, align the cylinder 41 and the rod 53 so that they can be locked by the markings, and
53 is contracted, and the second conveying means E, for example, the 14th
As shown in the figure, they are sequentially introduced and stocked in the transport path 130. When the receiving groove 32 of the indexing rotor 30 rotates, the sloked collecting tools 40 ... Are received one by one and sent for the next sampling.

The table below shows the results of actual sampling work using the examples of the present invention, together with the results of using a commercially available machine as a comparative example, and the results of the conventional example shown in FIG. It is a thing.

The sampling system according to the present invention is capable of mechanizing and automating all the steps from extraction of a fluid to setting of a sampling tool necessary for collecting a sample, conveyance, and removal of a sample to resetting, as well as extraction of a fluid. Safety is ensured even when handling dangerous samples such as toxic substances and toxic substances, and almost no workers are required. The automation reduces the time taken for the entire process. The fact that the sampling tool has a cylinder and a piston, and all the operations can be automated as described above, and the sampling operation is a closed system also greatly contributes to the safety of the operation. In particular, if the transportation means is an air transportation means, the time required can be significantly shortened. Therefore, when processing such as inspection is required, the processing can be performed without a time lag. Therefore, the time effect of sampling is reduced.

The sampling system according to the present invention is not limited to the above-described embodiment, and the fluid extractor, the sampling operation unit, the sample extractor, and both transfer units can be configured in place of other mechanical methods. Is. In addition,
The communication port of the fluid extractor may be opened directly on the peripheral wall of the system such as the reaction tank.

〔The invention's effect〕

Since the sampling system according to the present invention is configured as described above, according to this, the whole process is automated and closed, the safety is ensured, the number of workers is not required, and the whole process is complete. The time required for the process is greatly shortened, and processing such as inspection can be performed without a time lag. Since the sample is extracted with a sampling tool having a cylinder and a piston, the sample can be sampled even if it has a high viscosity, and furthermore, a vacuum generating means is not required for sampling.

In particular, since the sampling tool is provided with the piston locking mechanism, when the sampling tool that has collected the fluid is moved from the position facing the fluid extraction means to the sample extraction means via the first transfer means, the sampling tool is used. , Even if an external force such as vibration or shock is applied to the piston, there is no concern that the piston will move and the fluid will leak. Moreover, workability is extremely good because no extra parts or processes such as covering the sampling port with a cap are required.

Further, in the sample extracting means having the above-mentioned configuration,
With respect to the sampling tool held with the sampling port facing downwards, while arranging the measuring means, the residual amount discharging means and the cleaning means in that order, the piston of the sampling tool is simply moved up and down.
Supply the required amount of fluid into the measuring tank of the measuring means by dropping,
A series of operations, in which the excess fluid is discarded in the residual amount discharging means, and then the cleaning liquid is sucked into the cylinder for cleaning, can be performed extremely efficiently and reliably. Since it takes time and effort to change the posture of the sampling tool or switch to another holding means in all the steps of weighing, discharging the remaining amount and cleaning, mechanization or automation of the sample taking-out means can be easily performed.

That is, in the present invention, not only is the collection tool made of a cylinder and a piston used to enable good collection of the fluid, but also the transportation of the collection tool collecting the fluid, and the collection of the fluid from the collection tool. As a series of systems for removing the sample, cleaning the sampling tool, and preparing for the next sampling operation, the optimal configuration for handling the sampling tool consisting of the cylinder and piston is adopted, resulting in mechanization and automation of the entire sampling system. It can be easily realized and the productivity of sampling work can be improved.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of all steps showing an embodiment of a sampling system according to the present invention, and FIG. 2 is a side sectional view showing a state in which a sampling tool is set in a fluid extractor.
FIG. 3 is a side sectional view showing a state in which a sample is collected in a sampling tool, FIG. 4 is a front view seen from the IV direction in FIG. 1, and FIG.
FIG. 6 is a side view showing the detaching means and the collecting operation means, FIG. 6 is a plan view showing a state of the chute of the first conveying means and a collecting tool guided by the chute, and FIG. 7 is an internal structure of the relay section. Fig. 8 is a vertical sectional view showing the capsule, Fig. 8 is a top view of the capsule, Fig. 9 is a vertical sectional view of the capsule, Fig. 10 is a schematic diagram showing the inside of the sample extracting means, and Fig. 11 is a weighing attached to the sample extracting means.・ Outline explanatory drawing showing each process of residual quantity discharge / cleaning, Fig. 12 is a front view showing another concrete example of the sample take-out means, Fig. 13 is a left side view thereof, and Fig. 14 is a second carrying means. A perspective view showing how the sampling tool is transported to this,
FIG. 15 is a schematic explanatory diagram showing a sampling method by a conventional sampling method. A ... Fluid extraction means, B ... Sample collection means, C ... First transfer means, D ... Sample extraction means, E ... Second transfer means, 10 ... Reaction tank (system), 25 ... Communication port, 40 …… sampling tool, 41 …… sampling tool cylinder, 42 …… sampling tool piston, 45 …… sampling port

Claims (7)

[Claims] 1. A fluid extractor for extracting a part of the fluid from a system containing the fluid, and an empty sampler facing the fluid extractor so that the sampler is extracted from the fluid extractor. A sample collecting means for collecting a part of the fluid as a sample, a sample removing means for removing the sample from the sample collecting tool after sampling, and a sample collecting means for collecting the sample collecting means after collecting the sample from the sample collecting means. A first transporting means for transporting the empty sampling tool to the fluid extractor means and a second transporting means for transporting the empty sampling tool from the sample extracting means to the fluid extracting means, wherein the sampling tool has a tip opening as a sampling port; And a piston provided in the same cylinder, the fluid extraction means has a communication port to which the sampling port of the cylinder is set, and the sampling port of the cylinder is Communication of the fluid extractor The sample is sampled into the cylinder by the movement of the piston, and the sampler is equipped with a lock mechanism that can lock the forward / backward movement of the piston when the sample is taken out. The means includes a fixture for holding the cylinder with the sampling port of the sampling tool received from the first transporting device facing downward,
Elevating means for moving the piston up and down with respect to the cylinder is provided, and below the sampling tool held by the fixture, a measuring means having a measuring tank, a residual amount discharging means having a residual amount discharging tank, and a cleaning liquid receiving tank are provided. A cleaning system in which the cleaning means is partially arranged, and the cleaning liquid receiving tank of the cleaning means moves up and down relative to the sampling tool. 2. The fluid extractor has a cylinder attached to a wall of a system containing the fluid and having an interior communicating with the system, and a piston provided in the cylinder. The sampling system according to claim 1, further comprising: a communication port on the peripheral wall of which the collection port of the sampling tool is set. 3. A sampling tool setting means for receiving an empty sampling tool from the second transporting means, exposing the empty sampling tool to the fluid extracting means, and transferring the sampling tool after sampling to the first transporting means. , Setting the empty sampling tool supported by the setting means to the fluid extractor and then removing the set, and performing the sampling operation on the empty sampling tool set on the fluid extractor. The sampling system according to claim 1 or 2, further comprising a sampling operation means. 4. The sampling system according to any one of claims 1 to 3, wherein the piston of the sampling tool is provided with a projection for preventing clogging at the tip of the sampling tool that moves in and out of the sampling port. 5. A piston locking mechanism for a sampling tool, wherein the piston is rotated in a cylinder by rotating the piston rod, and the outer peripheral surface of the piston rod has an outer peripheral surface. A lock groove having a groove bottom shape that is eccentric to the circle formed by and is inscribed in the circle is formed, and a portion of the cylinder where the piston rod passes is biased by a spring in the direction of the rod. A lock piece is provided so as to advance and retreat at right angles to the axis of the piston rod, and when the piston retreats, the lock piece engages in the lock groove to lock the forward and backward movement of the piston, and The lock is released by rotating the piston rod from the state and making the outer peripheral surface of the rod, which is the outside of the lock groove, correspond to the lock piece. Sampling system according to any of the first term claims to paragraph 4. 6. A chute for receiving and sliding down a sampling tool after collecting the sample, and a relay section installed at the lower end of the chute for accommodating the falling sampling tool in a capsule. The sampling system according to any one of claims 1 to 5, further comprising: an air transportation unit that sends the capsule containing the sampling tool from the relay unit to the sample extraction unit. 7. The sampling system according to any one of claims 1 to 6, wherein the second transporting means transports the empty sampling tool while rolling it sideways. .