JPS6327559B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rotary filter type over-sampling pump used to suck out only fluid from a fluid such as water containing solids to be removed such as suspended matter or sediment. More specifically, the present invention relates to a fluid pump incorporating a filter device with a self-cleaning mechanism that can continuously suck out fluid for a long period of time while preventing the filter from clogging.

[Prior art] When sewage water, industrial wastewater, etc. is sucked up using a suction pump etc. and the dissolved substances contained therein are measured, when water from rivers, ponds, seas, etc. is sucked up and used as cooling water, cooling water containing cuttings is used. When regenerating and circulating oil, or when passing through a gas containing a lot of dust, it is necessary to remove floating or precipitated garbage, leaves, thin films such as vinyl, aquatic organisms, etc. from the fluid, or remove dust from the gas. It will be necessary to surround the inlet for removal.

[Problems to be Solved by the Invention] However, when the liquid or gas is continuously sucked up or separated, solids adhere around the filter, clogging the filter, and causing the fluid to be sucked up or separated. Poor or impossible separation often requires these operations to be stopped and the filters to be cleaned or replaced, which is extremely cumbersome and prevents continuous suction of fluid for long periods of time.

SUMMARY OF THE INVENTION An object of the present invention is to provide an over-sampling pump equipped with a rotary filter equipped with a self-cleaning device that can improve the above-mentioned drawbacks and can continuously separate a fluid from a solid-containing fluid for a long period of time.

[Means for Solving the Problems] In order to achieve the above object, the over-sampling pump with a rotary filter of the present invention has a housing having a cylindrical shape, having an inlet around the outer periphery and a discharge outlet at the end face. , a rotary impeller that pressurizes fluid taken in from the suction port provided in the housing and discharges it to the discharge port; a motor that drives the rotary impeller; and a motor that is rotatably mounted inside the suction port. a rotating jet nozzle, which forms a hollow disc by sandwiching a plurality of radial blades curved in a spiral direction between a pair of discs, and has a jet nozzle arranged around its outer periphery at an appropriate interval and inclination; a flow path that guides a part of the discharge flow pressurized by the rotary impeller to an inlet provided in a support shaft of the jet nozzle and communicating with the jet nozzle; and a flow path that covers the suction port and communicates the discharge port with the outside. a rotary filter that is rotatably supported by support shafts protruding from both ends of the housing and separates solids in the fluid sucked into the suction port by frictional force with the fluid; and a drive device that drives the rotary filter. and a cam that is provided on the discharge port or a discharge pipe attached to the discharge port and changes the cross-sectional area of the discharge port or the discharge pipe, and a motor that rotates the cam, and periodically discharges the fluid. A fluid cycle stop device that stops the rotation of the rotary filter removes and cleans solid matter adhering to the rotary filter by frictional force with the fluid generated by the rotation of the rotary filter, and removes and cleans a portion of the fluid pressurized by the rotary impeller. The rotating jet nozzle is guided from the flow path into the rotary jet nozzle, and jet is emitted from the nozzle in a direction having a certain angle with respect to the radial direction, and while the rotary jet nozzle is rotated by the reaction of this jet, the rotary filter is guided into the nozzle. Purify the rotary filter from the inside with fluid jetted out to remove solids adhering to the rotary filter, and discharge the other part of the pressurized fluid from the discharge port or a discharge pipe attached to the discharge port, or A configuration was adopted in which solids adhering to the rotary filter are removed by the water hammer effect that occurs when fluid discharge is stopped by a fluid cycle stop device.

[Functions and Effects of the Invention] With the above configuration, the over-sampling pump with a rotary filter of the present invention has the following functions and effects.

By rotating the rotating filter at an appropriate speed, the constantly rotating filter is cleaned by the frictional force with the fluid, preventing clogging. A fluid pump that can constantly clean the rotary filter from the inside increases the cleaning effect of the rotary filter, further preventing clogging, and allows excess fluid to be continuously sucked in from the suction port and sucked up through the discharge port and valve. becomes. Further, by attaching a device to the discharge port or the discharge pipe to periodically stop the discharge of fluid, a water hammer effect can be periodically generated to remove solids strongly adhered to the rotary filter.
Then, a plurality of radial blades curved in a spiral direction are sandwiched between a pair of disks to form a circular disk body, and a rotating jet nozzle with a jet nozzle arranged around the outer circumference at an appropriate interval and slope is installed as an inlet port. Since it is rotatably mounted inside the jet, there is little wave-forming resistance, and the rotary jet nozzle can be rotated stably and smoothly even when the flow is suspended.

As described above, it is extremely advantageous to continuously separate and collect only the fluid for a long period of time from a fluid containing a large amount of solids to be removed.

[Embodiment] Next, an over-sampling pump with a rotary filter according to the present invention will be explained based on an embodiment shown in the drawings.

Reference numeral 1 designates a rotary filter of the present invention which is rotatably supported on a pair of support shafts 3 and 4 provided in a housing 2 of a water pump. A bearing hole 5 that fits into the support shaft 3 is provided in the center, an inlet 6 and a filter 7 serving as a filter for covering the inlet 6 are provided at the lower part of the outer periphery, and an upward direction is provided in the center of the upper end surface. A tubular bearing 8 that fits with the support shaft 4 is provided protrudingly on the support shaft 4.
A pulley 9 is attached to the outer end of the bearing 8.

The housing 2 closes the upper and lower end surfaces of the stepped cylinder,
The support shaft 3 is provided to protrude downward from the lower end surface, an inlet 10 and a fixed filter 11 covering the inlet 10 are provided around the lower part of the outer periphery corresponding to the inlet 6, and an upwardly extending support shaft 3 is provided at the center of the upper end surface. The tubular support shaft 4 having a discharge port 12 formed therein is protruded toward.

Reference numeral 13 denotes a pump motor installed at the center of the upper part of the housing 2, 14 a rotary impeller attached to the downwardly projecting drive shaft of the pump motor 13, and 15 a plurality of spirally curved blades between a pair of discs. It is a waterwheel-shaped rotating jet nozzle in which a hollow disc body is formed with a radial blade 16 sandwiched therebetween, and a jet nozzle 17 is provided around the outer periphery at an appropriate interval and inclination.
The housing 2 is rotatably mounted on support shafts 18 and 19 provided vertically at the center of the bottom of the housing 2 as rotation shafts.

20 is a flow path connected from the suction port 10 to the inlet 21 of the impeller 14 provided at the lower center of the rotary impeller 14; 22 is a flow path provided around the pump motor 13; It is connected to the upper flow path 24 inside the housing 2, which is located inside the housing 2. 25 is a rotary jet nozzle 15 provided in the flow path 24 and the support shaft 19.
This is a flow path that connects the water inlet 26 of the. Reference numeral 27 denotes a motor that drives the rotary filter 1. A small-diameter pulley 28 is attached to the drive shaft of the motor 27, and the pulley 28 and the pulley 9 are connected to a V-belt 29.
are connected.

The motor 27 is supported and fixed to the upper support shaft 4 of the housing 2 by a support arm 30. When the motor 27 is energized, the diameter is approximately 17 cm in this embodiment.
The rotating filter 1 is set to rotate at about 400 times per minute. Reference numeral 31 denotes a periodic water stop device that is installed in the discharge pipe 32 attached to the tip of the discharge port 12 and is a device that periodically stops the discharge of fluid. By rotating the cam 3
5 periodically closes the discharge pipe 32 in contact with the discharge pipe 32. 36 is a valve attached to the discharge pipe 32, and 37 is a water-resistant power cord.

The operation of the oversampling pump with rotary filter of this embodiment will be explained based on the drawings.

In this embodiment, the pump motor 13 and the motor 27 are energized by pouring it into running water or a reservoir containing solid matter or solids to be removed, such as floating or settled garbage, leaves, thin films such as vinyl, and aquatic organisms. When they are rotated, the rotary impeller 14 and the rotary filter 1 are rotated by the driving force of each motor, and the rotary impeller 14 and the rotary filter 1 are rotated from the outside through the inlet 6 through the filter cloth 7 as shown by arrow A in FIGS. 1 and 2. It is sucked into the filter 1, and further passes through the fixed filter 11 to the suction port 1.
It is inhaled from 0 to the inside as shown by arrow B. At this time, suspended matter in the water is filtered through the cloth 7 and the fixed filter 1.
It adheres to the outer circumferential surface of the water filter 1 and clogs the filter cloth 7 and the fixed filter 11, making it difficult to inhale over time. Solid matter adhering to the filter cloth 7 due to force is removed and washed.

Also, as shown by arrow B, superfluous water sucked into the housing 2 passes through a flow path 20, is pressurized by the rotary impeller 14, passes through a flow path 23, and reaches a flow path 24.

Here, a part of the excess water is transferred to the discharge port 12 and the discharge pipe 3.
2 and is discharged through the valve 36, and the other part is discharged from the flow path 24 through the flow path 25 to the water inlet 26.
is guided into the rotating jet nozzle 15 from the blade 16
, and is ejected from the nozzle 17 as shown by arrow C. The rotary jet nozzle 15 rotates due to the reaction of this jet, and the fixed filter 11 rotates.
The solid matter that has adhered to the filter cloth 7 is washed from the inside by the jet arrow C that flows out through the arrow C, and the solid matter that has adhered to the filter cloth 7 is removed as the jet flow flows as shown by the arrow D and the filter cloth 7 is washed from the inside. The removal of the solid matter can be further improved with the help of the jet arrow D.

In addition, when the fluid is water as in this embodiment, the rotation speed of the rotary filter 1 is preferably 170 m to 300 m per minute, preferably 200 m to 270 m per minute, depending on the convergence of the surface of the filter cloth 7. Furthermore, periodic water stop device 31
The pump periodically stops discharging water and causes a water hammer effect on the water in the rotary filter type over-collection pump, so solids that are strongly attached to the over cloth 7 and the fixed filter 11 are removed by the high pressure of the water hammer action. As a result, the filter cloth 7 and the fixed filter 11 are cleaned more effectively.

Further, the valve 36 can adjust the jet flow from the nozzle 17 according to the amount of solids attached to the filter cloth 7 by controlling the opening degree. Furthermore, since the filter cloth 7 is attached to the rotary filter 1, replacement is easy. In addition, if you use a filter whose slits or holes are sloped or tapered so that the outside is narrow and the inside is wide, as shown in the cross-sectional views shown in Figures 3 and 3b, it will be difficult for large solids on the outside to enter. , it becomes easier for what goes in to come out,
Overeffects can be increased.

Furthermore, a rotary jet nozzle 15 is provided, in which a plurality of spirally curved radial blades 16 are sandwiched between a pair of disks to form a hollow disk body, and a nozzle 17 is provided around the outer periphery at an appropriate interval and inclination. Inlet port 10
Since it is rotatably mounted on the inside, there is little wave-forming resistance, and the rotating jet nozzle 15 has good stability underwater.
It can be rotated smoothly.

Note that the above embodiments are not intended to limit the present invention, and the fluid containing solids may be other liquids such as lubricating oil or gases such as air, and the rotary filter does not cover the entire housing of the water pump. However, as long as you cover the inlet. Further, the periodic water stop device may use a solenoid valve or the like to stop the discharge.

As described above, the present invention is extremely effective in separating and collecting only a fluid from a fluid containing a large amount of solids to be removed during a continuous flow period.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of the over-sampling pump with rotary filter of the present invention, and Fig. 2 is its E-F-
GH sectional view, FIG. 3a is a sectional view showing a filter of another embodiment, and FIG. 3b is a sectional view showing a filter of another embodiment. In the figure, 1... Rotating filter, 2... Housing, 3, 4... Support shaft, 5... Bearing hole, 6... Inflow port, 7... Cover cloth, 8... Tubular bearing, 9...
...Pulley, 10...Suction port, 11...Fixed filter, 12...Discharge port, 13...Pump motor,
14... Rotating impeller, 15... Rotating jet nozzle, 1
6... Radial blade, 17... Spout, 18,1
9...Support shaft, 20, 22, 23, 24, 25...
...Flow path, 21...Inflow port, 26...Water inlet, 2
7...Motor, 28...Small pulley, 29...
V-belt, 30... Support arm, 31... Periodic water stop device, 32... Discharge pipe, 33... Small motor, 34
...Reduction gear, 35...Cam, 36...Valve,
37...Waterproof power cord.

Claims (1)

[Scope of Claims] 1. A housing having a cylindrical shape, having an inlet around the outer periphery and a discharge port on the end surface, and a housing provided in the housing to pressurize the fluid sucked from the suction port to form the discharge port. a rotary impeller for discharging air into the air; a motor for driving the rotary impeller; a rotary jet nozzle forming a body and having a jet nozzle arranged around its outer periphery at an appropriate interval and inclination; a flow path that guides a portion of the pressurized discharge flow; and a flow path that covers the suction port and communicates the discharge port with the outside, and is rotatably supported by a support shaft protruding from both ends of the housing, and the suction port is connected to the suction port. a rotating filter that separates solids in a fluid by frictional force with the fluid; a drive device that drives the rotating filter; It consists of a cam that changes the cross-sectional area of the discharge pipe, and a fluid period stop device that has a motor that rotates the cam and periodically stops the discharge of fluid, and uses the frictional force with the fluid generated by the rotation of the rotary filter to The solid matter adhering to the rotary filter is removed and washed, and a part of the fluid pressurized by the rotary impeller is guided from the flow path into the rotary jet nozzle, and a constant flow in the radial direction from the nozzle is conducted. The fluid is ejected in an angular direction, and while the rotating jet nozzle is rotated by the reaction of the ejection, the rotary filter is purified from the inside with the fluid ejected from the nozzle to remove solids adhering to the rotary filter, and the pressurization is performed. The other part of the fluid is discharged from the discharge port or a discharge pipe attached to the discharge port, or adheres to the rotary filter due to the water hammer effect that occurs when the discharge of the fluid is stopped by the fluid cycle stop device. A rotary filter type over-sampling pump that is characterized by eliminating solids.