JP5870378B2 - Automatic drain water discharge device and discharge method - Google Patents

Description

  The present invention relates to an automatic drain water discharge apparatus and discharge method, and more specifically, to discharge drain water generated while compressed air produced by an air compressor passes through various pneumatic devices. The drain water pot which comprises the drain water confirmation means which confirms the drain water confirmation means which confirms the main body which stores drain water, and drain water in the downstream, drain water which discharges drain water with the force of compressed air In the automatic drain water discharge device that constitutes a control device that controls the drain water discharge electromagnetic valve according to the information of the discharge electromagnetic valve and the drain water confirmation means, the drain water pot is connected to the upper part of the drain water pot. By providing the gas discharge means for reducing the pressure, it prevents the drain water from becoming difficult to flow in by the compressed air entering the drain water pot. It is those described for surgery.

  Examples of conventional technologies related to an automatic drain water discharge device and discharge method include an automatic drain discharge method and device, and a drain water discharge method and discharge device (see, for example, Patent Document 1 and Patent Document 2).

  A conventional automatic drain discharging method and apparatus will be described with reference to Patent Document 1.

In this case, Patent Document 1 discloses that the compressed air 210, the drain water 220, and the drain water 220 are covered immediately before the drain discharge valve 20 that discharges the drain water 220 generated by dew condensation from the compressed air 210. In the automatic drain discharge method when the sealed compressed air 230 in a broken state stays, the drain discharge valve 20 is always set at a constant cycle for a certain minute time for the purpose of discharging the sealed compressed air 230. The technology to open is described.
JP 2002-276842 A

  Further, a drain water discharge method and apparatus will be described in Patent Document 2.

In Patent Document 2, when drain water generated from compressed air is discharged at a constant period T from a state where the drain water is stored in the drain detection tank 30A via the narrowed pipe sections 20, 111, 112, the drain When the drain water detection means 35 located in the detection tank 30A senses the presence of drain water, while the drain water detection means 35 does not sense the presence of drain water. A technique for discharging drain water for a minute time Δt for the purpose of decompression is described.
JP 2004-257545 A

  However, the conventional automatic drain discharging method and apparatus have the following problems.

  Here, considering the order in which the drain water is stored after the drain discharge valve 20 is activated and drain water is discharged, first the drain detection sensor unit 10b, then the drain discharge pipe 10a, and finally Drain water is stored in the lower part of the air tank 10. As shown in FIGS. 1 to 3, the narrower the inner diameter of the drain discharge pipe 10a, the more the sealed compressed air 230 as shown in FIG. 3 is generated. In this case, the operation of opening the drain discharge valve 20 for a certain minute time in a certain cycle is a meaningful operation while the sealed compressed air 230 is present, but if the sealed compressed air 230 is not present, It can be said that it repeats a meaningless operation.

  And sometimes, as seen in FIG. 3, when the sealed compressed air 230 is present in the drain detection sensor unit 10b, although not specifically illustrated, the drain water 220 is further added to the upper portion of the drain discharge valve 20. A situation where the sealed compressed air 230 is present at the top is also conceivable. In this case, the more the drain water 220 is present, the more wasted time is required for discharging the drain water 220 until the required sealed compressed air 230 is discharged. In particular, the greater the capacity of the drain detection sensor unit 10b, the greater the possibility.

  In addition, such a conventional drain water discharge method and discharge device have the following problems.

  First, after the drain water in the drain detection tank 30A is almost discharged, the compressed water in the drain detection tank 30A is located in the piping parts 20, 111, 112 where the drain water generated from the compressed air is narrowed. In the case of confinement, it is possible to confirm the effect of reducing the pressure by discharging the minute time Δt. On the other hand, when the drain detection tank 30A is filled with drain water from below, a wasteful operation is performed by discharging the minute time Δt. Further, after the drain water in the drain detection tank 30A is not completely discharged, and after a part of the drain water flows into the drain detection tank 30A, the drain water becomes narrow in the pipe portions 20, 111, 112. Then, the effect cannot be confirmed even if the minute time Δt is discharged several times. In particular, the greater the distance between the drain water pipe connected to the drain water detection means and the discharge valve, and the greater the capacity of the drain detection tank, the more remarkable the effect cannot be confirmed. .

  The present invention discharges drain water generated while compressed air produced by an air compressor passes through various pneumatic devices, and drain water for confirming the existence of a main body for storing drain water and the drain water downstream thereof. A drain water pot that constitutes confirmation means, a drain water discharge solenoid valve that is connected to the lower part of the drain water pot and discharges drain water by the force of compressed air, and the drain water discharge solenoid valve according to information on the drain water confirmation means In the automatic drain water discharge device constituting the control device that controls the gas, the gas discharge that can be connected to the upper part of the drain water pot to depressurize the drain water pot and adjust the flow rate of the flowing gas And a strainer for separating foreign matter from the drain water pot. Further, the drain water pot is further provided. The drain water pipe for receiving the drain water is connected using an object having an inner diameter of 6 mm or more, and further, the downstream of the gas discharge means is connected to the downstream of the drain water discharge electromagnetic valve. Further, the gas discharge means comprises a gas discharge electromagnetic valve for discharging gas and a flow rate adjustment valve, and further, the gas discharge electromagnetic valve is provided at a constant time interval. The above-mentioned problem is solved by discharging the fluid for a certain period of time.

  Further, the present invention confirms the existence of a main body for storing drain water and the presence of drain water downstream thereof in order to discharge drain water generated while compressed air produced by an air compressor passes through various pneumatic devices. A drain water pot that constitutes drain water confirmation means, a drain water discharge solenoid valve that is connected to a lower portion of the drain water pot and discharges drain water by the force of compressed air, and the drain water discharge according to information on the drain water confirmation means In an automatic drain water discharge method constituting a control device for controlling a solenoid valve, a gas discharge means is connected to an upper part of the drain water pot so as to facilitate the inflow of drain water at regular intervals. And the flow rate of the flowing gas can be adjusted, and further, the downstream of the gas discharge means is connected to the downstream of the drain water discharge electromagnetic valve. Further, the drain water discharge solenoid valve stops operation when detecting the lower limit of the drain water confirmation means, and detects the upper limit of the drain water confirmation means, or the drain water discharge electromagnetic valve. The above problem has been solved by starting the operation after a lapse of a certain time since the operation of the valve was stopped.

  As is clear from the above description, the present invention can provide the following effects.

  First, in order to discharge the drain water generated while the compressed air produced by the air compressor passes through various pneumatic devices, the drain water that confirms the presence of the main body that stores the drain water and the drain water downstream thereof. The drain water pot that constitutes the confirmation means, the drain water discharge solenoid valve that is connected to the lower part of the drain water pot and discharges the drain water by the force of compressed air, and the drain water discharge solenoid valve is controlled by the information on the drain water confirmation means. In the automatic drain water discharge device constituting the control device to be performed, it is connected to the upper part of the drain water pot and provided with gas discharge means for depressurizing the drain water pot, so that it stays in the drain water pot. The sealed compressed air can be reliably discharged.

  Second, by configuring a strainer that separates foreign matter into the drain water pot, even if drain water containing foreign matter flows in, the sealed compressed air staying in the drain water pot is surely retained. Can be discharged.

  Thirdly, the drain water pipe that receives the drain water into the drain water pot is connected using an object having an inner diameter of 6 mm or more, thereby preventing the compressed water from being sealed in the drain water pot. The sealed compressed air staying in the pot can be reliably discharged.

  Fourthly, by connecting the downstream of the gas discharge means to the downstream of the drain water discharge solenoid valve, it is sealed and stays in the drain water pot without polluting the surroundings by discharging compressed air containing drain water. Compressed air can be discharged reliably.

  Fifth, the gas discharge means is a gas discharge electromagnetic valve that discharges gas, so that the sealed compressed air staying in the drain water pot can be reliably discharged by general equipment existing in the world. It became possible to discharge.

  Sixth, the gas discharge solenoid valve discharges the fluid for a fixed time every fixed time, and although it is a general method, it stays in the drain water pot without waste. It is now possible to reliably discharge the sealed compressed air.

  Seventh, the drain water discharge solenoid valve stops operating when it detects the lower limit of the drain water confirmation means, and when it detects the upper limit of the drain water check means, or after it stops operating the drain water discharge electromagnetic valve, Although it is a general method to start operation after the lapse, it is possible to reliably discharge the sealed compressed air staying in the drain water pot while discharging drain water without waste. It has become possible.

  Eighth, the gas discharge solenoid valve is a general method, because it is a short discharge of 0.5 to 10 seconds for every time of 1 to 5 minutes. It became possible to reliably discharge the sealed compressed air staying inside.

  Diagram showing the entire invention of the present application   Diagram showing the relationship between the rise of drain water and the operation of the drain water discharge solenoid valve in the control unit   Diagram showing the operation of the gas discharge solenoid valve in the control unit   Another figure showing the whole of the present invention   Another diagram showing the relationship between the rise of drain water and the operation of the drain water discharge solenoid valve in the controller

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Here, FIG. 1 is a diagram showing the whole of the present invention, and FIG. 2 is a diagram showing the relationship between the rise of drain water and the operation of the drain water discharge electromagnetic valve in the control device. FIG. 4 is a diagram showing the operation of the gas discharge solenoid valve in the control device, FIG. 4 is another diagram showing the whole of the present invention, and FIG. 5 is a diagram showing the rise of drain water in the control device. It is another figure which showed the relationship of the action | operation of a drain water discharge | release solenoid valve.

[First Example]
As shown in FIG. 1, reference numeral 10 denotes an air compressor. Although not specifically shown in FIG. 1, an air compressor that sucks the atmosphere 201 to generate compressed air, and an electric motor that rotates the air compressor. Is configured.

  First, compressed air produced by an air compressor constituting the air compressor 10 is compressed air piping 101 for flowing out compressed air, an air dryer for drying compressed air, an air tank for storing compressed air, or compressed air. The compressed air 202 is supplied to various types of air motors and air cylinders through various pneumatic devices 20 such as filters for removing various foreign substances such as dust and compressed air piping 102 through which compressed air flows out. It is possible to supply to the actuator. The various pneumatic devices 20 do not have to be limited to one set, and may be configured in two sets, three sets, four sets, or more.

  In this case, the drain water generated in the various pneumatic devices 20 is sent to the drain water inlet 1a located in the automatic drain water discharge device 1 through the drain water pipe 111 together with the compressed air. As a matter of course, when using a plurality of sets of the same type of devices with various pneumatic devices 20 and different types of devices, when using a mixture of these devices, the various pneumatic devices 20 The individually generated drain waters merge and are sent to the drain water inlet 1a.

  In addition, the automatic drain water discharge device 1 is provided with a drain water outlet 1b for discharging drain water 203 containing compressed air in addition to the drain water inlet 1a. In addition, the automatic drain water discharge device 1 stores drain water and a drain water sensor 30 that is a drain water confirmation means 31 for confirming the position of the drain water, and a drain water confirmation means. The control device 40 that obtains the position information of the drain water from 31 and sends any signal to the drain water discharge solenoid valve 50 or the gas discharge solenoid valve 60, and the drain water that discharges the drain water in the drain water pot 30 together with the compressed air. The discharge electromagnetic valve 50 and gas discharge means 131, 132, 133, 60, and 70 for reducing the pressure in the drain water pot 30 by discharging the compressed air in the drain water pot 30 are configured.

  And drain water is sent from the upper part of the drain water pot 30 by the drain water piping 112 from the drain water inlet 1a with compressed air. However, as shown in FIG. 1, the position of the end of the drain water pipe 112 in the drain water pot 30 is preferably slightly lower than the center, but the main point is to shorten the drain water pipe 112 as much as possible. Therefore, it can be considered to be positioned as high as possible. Further, from the bottom of the drain water pot 30, the drain water discharge pipe 121, the drain water discharge electromagnetic valve 50 that is activated by any signal from the control device 40, and the drain water discharge pipe 122 are used to drain water. Drain water 203 containing compressed air is discharged from the outlet 1b. However, it is conceivable that the drain water discharge pipe 121 is connected to the lower portion of the side surface instead of the bottom portion of the drain water pot 30.

  On the other hand, in the drain water pot 30, a strainer 32 that separates various foreign substances and a drain water sensor 31 that is a drain water confirmation unit 31 that confirms the position of the drain water are present inside the main body 33. Here, in addition to the drain water pipe 112 and the drain water discharge pipe 121, an air pipe 131 as a gas discharge means 131 is connected to the main body 33. Further, the main body 33 is supplied with information from the lower reed switch 31d that the water surface has reached the lower limit to the control device 40 and information from the upper reed switch 31e that the water surface has reached the upper limit. The electric wire 142 is connected.

  By the way, regarding the drain water sensor 31 which is the drain water confirmation means 31 for confirming the position of the drain water surface, a magnetic dough-shaped electromagnetic float 31a, which is always located on the water surface, and the drain water. A non-magnetic hollow pipe 31c positioned outside the pot 30 and serving as a guide for the electromagnetic float 31a and having a cylindrical shape on the outside so that drain water does not flow inside. The lower reed switch 31d, which is located in the pipe 31c and feels magnetized when the electromagnetic float 31a is on the same plane, and the upper reed switch 31e are formed. The drain water sensor 31 that is the drain water confirmation means 31 is not limited to such a method, and various other methods such as a capacitance detection type and a drain water resistance detection type are also conceivable.

  Furthermore, from the upper part of the drain water pot 30, there are an air pipe 131 which is a gas discharge means 131, a flow rate adjustment valve 70 which can adjust the flow rate of flowing gas which is a gas discharge means 70, and a gas discharge means 132. According to any signal from the air pipe 132 and the gas discharge means 60 and the control device 40, in this case, the gas discharge electromagnetic valve 60 and the gas discharge means 133 that operate for a fixed time every fixed time. The air pipe 133 is joined so as to be connected between the drain water discharge pipes 122 and 123 located below the drain water discharge electromagnetic valve 50.

  In this case, as a positional relationship with the air pipe 131 in the drain water pot 30, in FIG. 1, the air pipe 131 penetrates the ceiling portion of the drain water pot 30 and protrudes to the inside. Although shown, even when it does not protrude, it may be located on the upper side instead of the ceiling. In addition, with respect to the flow rate adjusting valve 70, an orifice may be used, and sometimes it can be omitted depending on the inner diameter of the material used in the air pipes 131, 132, 133.

  The target place of the gas discharge means 131, 70, 132, 60, 133 is that there is compressed air in the drain water pot 30 while the drain water is about to flow through the drain water pipes 111, 112. In order to overcome the abnormal situation where the drain water does not flow into the drain water pot 30 and this compressed air is sealed in the drain water pot 30, the sealed compressed air in the drain water pot 30 is discharged. The drain water pot 30 is positioned for the purpose of depressurizing so that it is possible.

  In addition, the control device 40 is further fixed in position by connecting the lower reed switch 31d whose position is fixed by the electric wire 141 while the electromagnetic float 31a moves by moving up and down due to a change in the water surface. By connecting the upper reed switch 31e with the electric wire 142, it is possible to obtain information that the water surface is lowered or raised to the same position as the lower limit and the upper limit. Then, by connecting the electric wire 151 to the drain water discharge electromagnetic valve 50 based on such information and further connecting the electric wire 152 to the gas discharging means 60, it is possible to issue an opening / closing instruction to both from the control device 40. It is.

  Here, as for the control device 40, a general-purpose device such as a personal computer may be installed and operated by a program, and it can be used only for a specific device, but only necessary operations. It may be configured as a device having a circuit for performing the above. As a matter of course, it is conceivable that the control device 40 is provided separately for each of the drain water discharge electromagnetic valve 50 and the gas discharge electromagnetic valve 60, and is configured integrally with the drain water discharge electromagnetic valve 50 and the gas discharge means 60. It is also possible to do.

  The automatic drain water discharge device and discharge method according to the present invention are configured as described above, and the operation thereof will be described below.

  First, when the electric motor constituting the air compressor 10 is operated, the rotation of the electric motor is transmitted to the air compressor, and the air 201 is sucked to create compressed air. The compressed air produced here is sent out as compressed air 202 via the compressed air piping 101, various pneumatic devices 20 such as an air dryer, an air tank, and a filter, and the compressed air piping 102. Yes.

  At that time, the drain water produced by the compressed air stored in or passed through the various pneumatic devices 20 accumulates at the bottom of the various pneumatic devices 20. The drain water accumulated at the bottom is sent to the drain water pot 30 via the drain water pipe 111, the drain water inlet 1 a, and the drain water pipe 112. In this case, with respect to the various pneumatic devices 20, it is sufficiently considered that a plurality of sets are passed, and at that time, the drain waters are merged and fed into the drain water pot 30.

  In this case, the drain water sent to the drain water pot 30 is accumulated from the bottom of the drain water pot 30 at the very beginning of the use of the apparatus, and the water surface, the electromagnetic float 31a and the lower lead. The switch 31d is on the same plane. However, after reaching the lower reed switch 31d for the first time, after the drain water discharge solenoid valve 50 is operated, it is always necessary to combine with the situation where the drain water discharge electromagnetic valve 50 is operated repeatedly. Drain water accumulates from the position of the switch 31d, and at the same time, the electromagnetic float 31a also rises.

  When the water surface, the electromagnetic float 31a, and the upper reed switch 31e are located on the same plane, the upper reed switch 31e senses the magnetism from the electromagnetic float 31a and turns on the switch. A signal indicating that the position has been reached is sent by the electric wire 142. As a result, when the drain water is discharged by the drain water discharge electromagnetic valve 50, the water surface level is lowered, and when the water surface, the electromagnetic float 31a, and the lower reed switch 31d are positioned on the same plane, the lower reed switch 31d is A switch is turned on by sensing the magnetism from the electromagnetic float 31a, and a signal indicating that the water surface has reached the lower limit position is sent to the control device 40 via the electric wire 141, and the drain water discharge solenoid valve 50 stops discharging drain water. It will be.

  Therefore, when the above-described operation is seen in the operation of the control device 40, as shown in FIG. 2, in the control device 40, the upper limit confirmation unit 301 sets the water surface from the upper reed switch 31e to the upper limit position. When a signal confirming that it has been reached is obtained (YES), the drain water discharge electromagnetic valve 50 is opened via the electric wire 151 to the drain water discharge electromagnetic valve drive unit 303 to discharge the drain water. At the same time, the lower limit confirmation unit 302 is confirmed that the water surface from the lower reed switch 31d has reached the lower limit position.

  On the other hand, when the upper limit confirmation unit 301 cannot confirm that the water surface from the upper reed switch 31e has reached the upper limit position (NO), the upper limit confirmation unit 301 repeats the confirmation operation many times. When the lower limit confirmation unit 302 confirms that the water surface from the lower reed switch 31d has reached the lower limit position, if it has not reached (NO), the drain water discharge electromagnetic valve 50 is turned on again. An instruction to release the drain water is issued, and at the same time, the lower limit confirmation unit 302 is confirmed that the water surface from the lower reed switch 31d has reached the lower limit position. In this manner, the lower limit confirmation unit 302 is repeatedly confirmed that the water surface from the lower reed switch 31d has reached the lower limit position. If it has reached (YES), the upper lead in the upper limit confirmation unit 301 is confirmed. It is confirmed whether or not the water surface from the switch 31e has reached the upper limit position.

  Now, while repeating the operation as described above, the water surface repeats from the lower limit to the upper limit and again from the lower limit to the upper limit. However, when the drain water pipes 111 and 112 are thin, sometimes the drain water in the drain water pot 30 is drained. May not flow in, and the compressed air in the drain water pot 30 may be confined in the drain water pot 30 as it is by the drain water flowing through the drain water pipes 111 and 112.

  Therefore, in order to overcome such a situation, the control device 40 controls the compressed air confined in the drain water pot 30 by a series of piping systems including the gas discharge means 131, 70, 132, 60, 133. However, the operation of the gas discharge solenoid valve 60 is performed for a short period of time every fixed period of time, and in this case, the loss due to the discharge of the compressed air is performed in a range that can be ignored. It can be said that it is the largest content of.

  Here, when the above-described operation is seen in the operation of the control device 40, as shown in FIG. 3, the control device 40 has reached a certain time set in the cycle timer 311. (YES) Instructs the gas discharge solenoid valve drive unit 313 to open the gas discharge solenoid valve 60 via the wire 152 for a short period of time set in the discharge timer 312. At the same time, after clearing “0” to the cycle timer 311 to return the time to 0, it is confirmed whether or not the cycle timer 311 has counted a certain time. When the cycle timer 311 has not reached a certain time (NO), it is repeatedly confirmed whether or not the cycle timer 311 has timed the certain time again.

  In this case, specific numerical values set in the cycle timer 311 and the discharge timer 312 include a short time seen in 0.5 to 10 seconds with respect to a constant time cycle seen in 1 to 5 minutes. It is best to discharge in the meantime, but for a constant hourly cycle seen in 0.5 to 10 minutes, the effect is sufficient even in the short time seen in 0.3 to 15 seconds Seen.

  Note that the difference in time here depends on the elimination of waste, the size of the drain water pot 30 and the size of the inner diameter of the drain water pipes 111 and 112, and ultimately the size (capacity) of the compressed air. It is set according to the frequency of occurrence and can be changed according to the situation. However, as for the cycle at a certain time, as a matter of course, if the discharge time is short and the discharge time is long, the compressed air is wasted. Need to be considered.

  By the way, regarding the thickness of the drain water pipes 111 and 112, the drain water flowing there may not flow by confining the compressed air in the drain water pot 30, but the larger the thickness, the more likely it is. Go down. In particular, it can be said that when the thickness is 6 mm or more, the frequency of occurrence is considerably reduced. However, even if the value is 12 mm or more, it can be said that a certain effect can be sufficiently seen.

[Second Example]
The difference between the second embodiment and the first embodiment is that the upper reed switch 31e and the electric wire 142 are not positioned in the drain water sensor 31A, which is the drain water confirmation means 31A, as seen in FIG. It is. Therefore, it can be considered that the other contents are exactly the same as those in the first embodiment. However, operation | movement of the control apparatus 40 changes according to the content.

  The automatic drain water discharge device and discharge method according to the present invention are configured as described above, and the operation thereof will be described below.

  In this case, as described above, the drain water sensor 31A in the drain water pot 30A does not have a portion for detecting the upper limit, which means how to deal with this point.

  Here, looking at the operation in the control device 40, as shown in FIG. 5, in the control device 40, when the configured time setting unit 305 confirms that a certain time has been reached ( YES), the drain water discharge electromagnetic valve drive unit 303 is instructed to open the drain water discharge electromagnetic valve 50 and discharge the drain water via the electric wire 151, and at the same time to the lower limit confirmation unit 302. Then, it is confirmed that the water surface from the lower reed switch 31d has reached the lower limit position.

  On the other hand, when the time setting unit 305 cannot confirm that the arrival has reached a certain time (NO), the time setting unit 305 repeats the confirmation operation many times. When the lower limit confirmation unit 302 confirms that the water surface from the lower reed switch 31d has reached the lower limit position, if it has not reached (NO), the drain water discharge electromagnetic valve 50 is turned on again. An instruction to release the drain water is issued, and at the same time, the lower limit confirmation unit 302 is confirmed that the water surface from the lower reed switch 31d has reached the lower limit position. In this manner, the lower limit confirmation unit 302 is repeatedly confirmed that the water surface from the lower reed switch 31d has reached the lower limit position. If the water level has reached (YES), the time setting unit 305 is simultaneously After clearing “0”, it is confirmed whether or not the time setting unit 305 measures a certain time. And while repeating the above operations, the water surface rises from the lower limit and rises again from the lower limit.

  In order to discharge the drain water generated while the compressed air produced by the air compressor passes through various pneumatic equipment, the main body that stores the drain water and the drain water confirmation means that confirms the presence of the drain water are constructed downstream. A drain water pot, a drain water discharge solenoid valve connected to the lower part of the drain water pot to discharge the drain water by the force of compressed air, and a control device for controlling the drain water discharge solenoid valve according to the information of the drain water confirmation means In the constructed automatic drain water discharge device, by providing a gas discharge means connected to the upper portion of the drain water pot and depressurizing the inside of the drain water pot, the compressed air enters the drain water pot. Water became difficult to flow in. This makes it possible to provide an automatic drain water discharge device that does not cause the above-mentioned abnormal situation.

1 .... Drain water discharge device 1A ... Auto drain water discharge device 1a ... Drain water inlet 1b ... Drain water outlet 10 ...・ ・ Air compressor 20 ・ ・ ・ ・ ・ ・ Pneumatic equipment 30 ・ ・ ・ ・ ・ ・ Drain water pot 30A ・ ・ ・ Drain water pot 31 ・ ・ ・ ・ ・ ・ Drain water sensor (Drain water confirmation means)
31A ... Drain water sensor (Drain water confirmation means)
31a: Electromagnetic float 31c: Pipe 31d: Lower reed switch 31e: Upper reed switch 32: Strainer 33: Main body 40・ ・ ・ ・ ・ ・ Control device 50 ・ ・ ・ ・ ・ ・ Drain water discharge solenoid valve 60 ・ ・ ・ ・ ・ ・ Gas discharge solenoid valve (gas discharge means)
70 ... Flow control valve (gas discharge means)
101 ... Compressed air piping 102 ... Compressed air piping 111 ... Drain water piping 112 ... Drain water piping 121 ... Drain water discharge pipe 122 ... ..Drain water discharge pipe 123 ... Drain water discharge pipe 131 ... Air pipe (gas discharge means)
132 ... Air piping (gas discharge means)
133 ... Air piping (gas discharge means)
141: Electric wire 142: Electric wire 151: Electric wire 152: Electric wire 201: Air 202: Compressed air 203: Compressed Drain water containing air 301... Upper limit confirmation unit 302... Lower limit confirmation unit 303... Drain water discharge solenoid valve drive unit 305... Time setting unit 311. ... Cycle timer 312 ... Discharge timer 313 ... Gas exhaust solenoid valve drive unit

Claims (9)

In order to discharge the drain water generated while the compressed air produced by the air compressor passes through various pneumatic equipment, the main body that stores the drain water and the drain water confirmation means that confirms the presence of the drain water are constructed downstream. The drain water discharge solenoid valve connected to the lower portion of the drain water pot, the drain water discharge solenoid valve discharging the drain water by the force of compressed air, and the drain water discharge solenoid valve are controlled according to the information of the drain water confirmation means In the automatic drain water discharge device constituting the control device,
An automatic drain water discharge device provided with a gas discharge means connected to an upper portion of the drain water pot to depressurize the drain water pot and adjust a flow rate of flowing gas.   The automatic drain water discharge device according to claim 1, wherein a strainer that separates foreign matter is configured in the drain water pot.   The automatic drain water discharge device according to claim 1 or 2, wherein a drain water pipe for receiving drain water is connected to the drain water pot using an object having an inner diameter of 6 mm or more.   The automatic drain water discharge device according to any one of claims 1 to 3, wherein a downstream of the gas discharge means is connected to a downstream of the drain water discharge electromagnetic valve.   The automatic drain water discharge device according to any one of claims 1 to 4, wherein the gas discharge means comprises a gas discharge electromagnetic valve for discharging gas and a flow rate adjustment valve. .   6. The automatic drain water discharge device according to claim 5, wherein the gas discharge electromagnetic valve discharges fluid for a fixed time every fixed time. In order to discharge the drain water generated while the compressed air produced by the air compressor passes through various pneumatic equipment, the main body that stores the drain water and the drain water confirmation means that confirms the presence of the drain water are constructed downstream. The drain water discharge solenoid valve connected to the lower portion of the drain water pot, the drain water discharge solenoid valve discharging the drain water by the force of compressed air, and the drain water discharge solenoid valve are controlled according to the information of the drain water confirmation means In the automatic drain water discharge method constituting the control device,
Automatic flow characterized in that the flow rate of the flowing gas can be adjusted by reducing the pressure every certain time by connecting a gas discharging means to the upper part inside the drain water pot so that the drain water can easily flow in. Drain water discharge method. The automatic drain water discharging method according to claim 7 , wherein the downstream of the gas discharging means is connected to the downstream of the drain water discharging electromagnetic valve. The drain water discharge electromagnetic valve stops operating when the lower limit of the drain water confirmation means is detected, and when the upper limit of the drain water confirmation means is detected, or after the operation of the drain water discharge electromagnetic valve is stopped for a certain period of time. The automatic drain water discharge method according to claim 7 or 8 , wherein the operation is started after the passage.

Images