CN113230739A - Side filtering system for reducing clamping stagnation of three-way valve - Google Patents
Side filtering system for reducing clamping stagnation of three-way valve Download PDFInfo
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- CN113230739A CN113230739A CN202110534491.8A CN202110534491A CN113230739A CN 113230739 A CN113230739 A CN 113230739A CN 202110534491 A CN202110534491 A CN 202110534491A CN 113230739 A CN113230739 A CN 113230739A
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- way valve
- valve
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- pipe
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- 238000001914 filtration Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 116
- 238000011001 backwashing Methods 0.000 claims abstract description 25
- 239000002351 wastewater Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 11
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 239000010865 sewage Substances 0.000 description 4
- 210000003437 trachea Anatomy 0.000 description 4
- 239000012535 impurity Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
- B01D24/4642—Counter-current flushing, e.g. by air with valves, e.g. rotating valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/22—Directing the mixture to be filtered on to the filters in a manner to clean the filters
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention belongs to the technical field of a side filtering system, and particularly relates to a side filtering system for reducing clamping stagnation of a three-way valve. The side-filtering filter comprises a filter water inlet and a filter water outlet; the pneumatic three-way valve is connected with the water inlet of the filter and comprises a three-way valve water inlet, a backwashing water outlet and a pneumatic elastic piece, when the pneumatic three-way valve is closed, the three-way valve water inlet is communicated with the water inlet of the filter, when the pneumatic three-way valve is opened, the backwashing water outlet is communicated with the water outlet of the filter, and the pneumatic elastic piece is used for closing or opening the pneumatic three-way valve; the compressed air pump applies valve-closing pressure to the aeroelastic member through a valve-closing air pipe. The bypass filtering system for reducing the clamping stagnation of the three-way valve can quickly and effectively close the pneumatic three-way valve, ensure the normal operation of a filtering program, avoid the failure and even damage of the three-way valve caused by the excessive execution of a backwashing program by the bypass filtering system, prevent the waste of water resources and ensure the filtering effect and the backwashing cleaning effect.
Description
Technical Field
The invention relates to the technical field of a bypass filter system, in particular to a bypass filter system capable of reducing clamping stagnation of a three-way valve.
Background
A bypass filtering system in the existing steel smelting industry mostly adopts a bypass filtering filter to continuously filter after a part of return water of a circulating water main pipe is shunted, so that impurities in water are removed. The common side filtration system usually has twenty side filtration filters, and the circulating water is filtered by adopting a mode of connecting five groups in series and then connecting four groups in parallel. The backwashing process of the control system is to carry out backwashing of a plurality of filters in sequence, the final execution component of the backwashing process is a pneumatic three-way valve, and the flow direction of circulating water is controlled by the pneumatic three-way valve. Because the water pressure of the circulating water is small, the water quality of the circulating water is not good, the spring elasticity of a closing spring of the pneumatic three-way valve is not enough, the spring elasticity caused by the repeated use of the spring is not enough, and the like, the pneumatic three-way valve is blocked and cannot be closed smoothly, the side filter is caused to execute a backwashing program for a long time, on one hand, water resources are wasted, on the other hand, when the side filter needs backwashing normally, the normal backwashing effect cannot be achieved due to insufficient water pressure, the filtering effect of the side filter is reduced, and the side filter can lose the filtering effect completely for a long time.
Disclosure of Invention
The invention aims to provide a bypass filter system capable of reducing the clamping stagnation of a three-way valve, which can quickly and effectively close a pneumatic three-way valve, ensure the normal operation of a filter program, avoid the failure and even damage of the pneumatic three-way valve caused by the excessive execution of a backwashing program by the bypass filter system, prevent the waste of water resources and ensure the filter effect and the cleaning effect during backwashing.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bypass filter system for reducing three-way valve sticking, comprising:
a bypass filter comprising a filter water inlet and a filter water outlet;
the pneumatic three-way valve is connected to the water inlet of the filter and comprises a three-way valve water inlet, a backwashing water outlet and a pneumatic elastic piece, when the pneumatic three-way valve is closed, the three-way valve water inlet is communicated with the water inlet of the filter, and when the pneumatic three-way valve is opened, the backwashing water outlet is communicated with the water outlet of the filter; the aeroelastic member is configured to close or open the pneumatic three-way valve;
a compressed air pump; and
and one end of the valve closing air pipe is connected to the pneumatic elastic part, the other end of the valve closing air pipe is communicated with the compressed air pump, and the compressed air pump applies valve closing pressure to the pneumatic elastic part through the valve closing air pipe.
As a preferable structure of the present invention, the pneumatic elastic member includes a diaphragm top end and a diaphragm bottom end, and the valve-closing air tube is connected to the diaphragm top end and applies the valve-closing pressure to the diaphragm top end.
In a preferred configuration of the present invention, the diaphragm further includes a valve opening air pipe, one end of the valve opening air pipe is connected to the bottom end of the diaphragm, and the other end of the valve opening air pipe is communicated with the compressed air pump, and the compressed air pump applies a valve opening pressure to the bottom end of the diaphragm through the valve opening air pipe.
As a preferred structure of the invention, the pneumatic air compressor further comprises an electromagnetic valve, wherein the electromagnetic valve comprises a normally open interface and a normally closed interface, one end of the normally open interface is communicated with the air pipe of the shut valve, and the other end of the normally open interface is communicated with the compressed air pump; one end of the normally closed interface is communicated with the valve opening air pipe, and the other end of the normally closed interface is communicated with the atmospheric water ditch.
As a preferable structure of the present invention, the present invention further includes a pressure reducing valve provided on the shut-off valve gas pipe, the pressure reducing valve being configured to control the shut-off valve pressure.
In a preferred configuration of the present invention, the pressure reducing valve is capable of controlling the valve closing pressure to 0.2Mpa to 0.4 Mpa.
As a preferable structure of the present invention, the electromagnetic valve further includes an air outlet, the air outlet is communicated with the atmospheric water channel, and when the electromagnetic valve is energized, the valve closing air pipe is communicated with the air outlet.
As a preferable structure of the present invention, the system further comprises a circulation water inlet pipe, the circulation water inlet pipe is communicated with the water inlet of the three-way valve, and the circulation water inlet pipe is configured to input the wastewater to be filtered.
The sewage draining device of the invention further comprises a sewage draining pipe, wherein the sewage draining pipe is communicated with the backwashing water draining outlet and is configured to output backwashing wastewater.
The filter water outlet device further comprises a water outlet pipe and a clean water pipe, wherein the water outlet pipe and the clean water pipe are connected in parallel to the water outlet of the filter, the water outlet pipe is communicated with the cooling tower, and the clean water pipe is configured to input backwash clean water.
The invention has the beneficial effects that: the invention provides a bypass filtering system for reducing the clamping stagnation of a three-way valve, which utilizes an existing compressed air pump for controlling the opening of a pneumatic three-way valve of the system to make the compressed air pump participate in the closing of the pneumatic three-way valve, namely: through increasing the valve trachea of closing, make compressed air pump exert the valve pressure of closing through closing the valve trachea to pneumatic three-way valve, together with the elasticity pretightning force of aeroelastic piece self, guarantee pneumatic three-way valve quick, reliably close, avoid pneumatic three-way valve jamming, guarantee filtering program's normal clear, avoid the other pneumatic three-way valve that the excessive and wrong execution backwash procedure of system of straining arouses to become invalid or even damage, prevent the waste of water resource, the clean effect when ensureing filter effect and backwash.
Drawings
Fig. 1 is a schematic structural diagram of a bypass filter system for reducing three-way valve sticking according to an embodiment of the present invention.
In the figure:
1. side-filtering the filtrate; 11. a filter water inlet; 12. a water outlet of the filter;
2. a pneumatic three-way valve; 21. a water inlet of the three-way valve; 22. backwashing the water outlet; 23. a pneumatically elastic member; 231. a membrane top end; 232. the bottom end of the diaphragm;
3. a compressed air pump;
4. closing the valve air pipe;
5. opening the air pipe;
6. an electromagnetic valve; 61. a normally open interface; 62. a normally closed interface; 63. an air outlet;
7. a pressure reducing valve;
100. and (4) an atmospheric ditch.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example one
As shown in fig. 1, an embodiment of the present invention provides a bypass filter system for reducing three-way valve sticking, including a bypass filter 1, a pneumatic three-way valve 2, a compressed air pump 3, and a valve closing air pipe 4. When the side filter system performs a backwash procedure, the compressed air pump 3 is used to open the pneumatic three-way valve 2. The bypass filter 1 comprises a filter inlet 11 and a filter outlet 12. The pneumatic three-way valve 2 is connected with the water inlet 11 of the filter, the pneumatic three-way valve 2 comprises a three-way valve water inlet 21, a backwashing water outlet 22 and a pneumatic elastic part 23, when the pneumatic three-way valve 2 is closed, the three-way valve water inlet 21 is communicated with the water inlet 11 of the filter, at the moment, the side filtering system executes a filtering program, and circulating water enters the side filtering filter 1 through the three-way valve water inlet 21 and the water inlet 11 of the filter; when the pneumatic three-way valve 2 is opened, the backwashing water outlet 22 is communicated with the filter water outlet 12, at the moment, the side filtering system executes a backwashing program, clean water enters the side filtering filter 1 through the backwashing water outlet 22, cleans the side filtering filter 1, and is discharged through the backwashing water outlet 22. The aeroelastic member 23 is configured to close or open the pneumatic three-way valve 2, and when the side filter system needs to execute a backwashing procedure, the compressed air pump 3 acts on the aeroelastic member 23 to open the pneumatic three-way valve 2. One end of the valve closing air pipe 4 is connected to the pneumatic elastic part 23, the other end of the valve closing air pipe is communicated with the compressed air pump 3, and the compressed air pump 3 applies valve closing pressure to the pneumatic elastic part 23 through the valve closing air pipe 4. When the side filter system needs to execute a filter program, the compressed air pump 3 applies valve closing pressure to the pneumatic elastic piece 23 through the valve closing air pipe 4, and the pneumatic three-way valve 2 is quickly and reliably closed together with the elastic pretightening force of the pneumatic elastic piece 23.
The bypass filtering system for reducing the clamping stagnation of the three-way valve in the embodiment of the invention utilizes the existing compressed air pump 3 for controlling the pneumatic three-way valve 2 to be opened to ensure that the compressed air pump 3 participates in the closing of the pneumatic three-way valve 2, namely: through increasing valve closing trachea 4, make compressed air pump 3 exert valve closing pressure to pneumatic three-way valve 2 through valve closing trachea 4, along with the elasticity pretightning force of pneumatic elastic component 23 self, guarantee pneumatic three-way valve 2 fast, reliably close, avoid pneumatic three-way valve 2 jamming, guarantee filtering program's normal clear, avoid other filtration system excessive and the pneumatic three-way valve 2 that wrong execution backwash procedure arouses become invalid or even damage, prevent the waste of water resource, the clean effect when ensureing filter effect and backwash.
Further, the aeroelastic member 23 includes a diaphragm top end 231 and a diaphragm bottom end 232, and the valve-closing air tube 4 is connected to the diaphragm top end 231 and applies a valve-closing pressure action to the diaphragm top end 231. When the side filter system does not execute the backwashing process, the compressed air pump 3 acts the pressure on the membrane top end 231 through the valve closing air pipe 4, so that the pneumatic three-way valve 2 is rapidly and reliably closed, and the clamping stagnation of the pneumatic three-way valve 2 is avoided.
Furthermore, the bypass filtering system for reducing the clamping stagnation of the three-way valve further comprises a valve opening air pipe 5, one end of the valve opening air pipe 5 is connected to the bottom end 232 of the diaphragm, the other end of the valve opening air pipe 5 is communicated with the compressed air pump 3, and the compressed air pump 3 applies valve opening pressure to the bottom end 232 of the diaphragm through the valve opening air pipe 5. When the side filter system needs to execute a backwashing program, the compressed air pump 3 applies valve opening pressure to the membrane bottom end 232 through the valve opening air pipe 5 to ensure that the backwashing water outlet 22 is completely communicated with the filter water outlet 12.
Furthermore, the bypass filtering system for reducing the clamping stagnation of the three-way valve further comprises an electromagnetic valve 6, wherein the electromagnetic valve 6 comprises a normally open interface 61 and a normally closed interface 62, one end of the normally open interface 61 is communicated with the valve closing air pipe 4, and the other end of the normally open interface 61 is communicated with the compressed air pump 3; one end of the normally closed interface 62 is communicated with the valve opening air pipe 5, and the other end is communicated with the atmospheric water ditch 100. In the embodiment of the invention, the normally open interface 61 is communicated with the valve closing air pipe 4, so that the compressed air pump 3 enables an air source to enter the top end 231 of the diaphragm through the valve closing air pipe 4 through the normally open interface 61, and at the moment, the valve opening air pipe 5 enables valve opening air to be rapidly discharged through the atmospheric water channel 100 through the normally closed interface 62, and normal execution of a filtering program is ensured.
Further, the electromagnetic valve 6 further comprises an air outlet 63, the air outlet 63 is communicated with the atmospheric water ditch 100, and when the electromagnetic valve 6 is electrified, the valve closing air pipe 4 is communicated with the air outlet 63. When the side filter system starts a backwashing program, the electromagnetic valve 6 is electrified to disconnect the normally open interface 61, the valve closing air pipe 4 is communicated with the air outlet 63 to discharge pipe valve gas through the atmospheric water ditch 100, meanwhile, the normally closed interface 62 is communicated with the compressed air pump 3 to enable the valve opening gas to apply valve opening pressure to the membrane bottom end 232 through the valve opening air pipe 5, and then the backwashing program can be carried out.
Further, the bypass filter system for reducing the three-way valve sticking also includes a circulation water inlet pipe (not shown in the figure) which is communicated with the three-way valve water inlet 21 and is configured to input the waste water to be filtered. When the side filter system executes the filtering program, the waste water to be filtered enters the side filter 1 through the circulating water inlet pipe, the three-way valve water inlet 21 and the filter water inlet 11.
Further, the bypass filter system for reducing the three-way valve sticking also comprises a drain pipe (not shown in the figure) which is communicated with the backwashing water outlet 22. When the side filter system performs a filtering process, wastewater generated by backwashing is discharged from the sewage drain through the side filter 1 through the backwash water discharge port 22, thereby taking away impurities on the filter sand in the side filter 1.
Furthermore, the bypass filter system for reducing the clamping stagnation of the three-way valve further comprises a water outlet pipe (not shown in the figure) and a clean water pipe (not shown in the figure), wherein the water outlet pipe and the clean water pipe are connected in parallel with the water outlet 12 of the filter, the water outlet pipe is communicated with the cooling tower, and the clean water pipe is configured to input backwash clean water. When the side filtering system executes a filtering program, filtered water enters the cooling tower from the water outlet pipe through the water outlet 12 of the filter for use; when the side filter system executes a filtering program, clean water reversely enters the side filter 1 through the clean water pipe via the filter water outlet 12. Preferably, a switch valve can be arranged to control the opening and closing of the water outlet pipe and the clean water pipe, and when the side filter system executes a filtering program, the water outlet pipe is communicated with the water outlet 12 of the filter through the switch valve; when the side filter system executes a backwashing program, the clean water pipe is communicated with the water outlet 12 of the filter through the switch valve.
Example two
In the embodiment of the invention, the bypass filtering system for reducing the clamping stagnation of the three-way valve comprises a bypass filtering filter 1, a pneumatic three-way valve 2, a compressed air pump 3, a valve closing air pipe 4, a valve opening air pipe 5 and an electromagnetic valve 6 which are the same as those in the first embodiment. The difference of the embodiment of the invention is that the bypass filtration system further comprises a pressure reducing valve 7, the pressure reducing valve 7 is arranged on the valve closing air pipe 4, and the pressure reducing valve 7 is configured to control the valve closing pressure. Preferably, a pressure reducing valve 7 is provided between the electromagnetic valve 6 and the compressed air pump 3, and the valve-closing pressure can be controlled to 0.2Mpa to 0.4Mpa by the pressure reducing valve 7. On one hand, the pressure reducing valve 7 can reduce the normally open air source pressure applied by the compressed air pump 3 to the electromagnetic valve 6, and avoid frequent operation and energy consumption of the compressed air pump 3 due to air source leakage caused by joint aging under the condition of long-time ventilation of the valve closing air pipe 4; on the other hand, the phenomenon that valve core abrasion or water hammer phenomenon is generated to damage the valve due to overlarge valve opening pressure or too high valve closing speed caused by the fact that the pneumatic three-way valve 2 is usually made of plastic materials when the pneumatic three-way valve 2 is acted on the pneumatic three-way valve 2 is avoided.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A bypass filter system for reducing three-way valve sticking, comprising:
the bypass filtering filter (1), the bypass filtering filter (1) comprises a filter water inlet (11) and a filter water outlet (12);
the pneumatic three-way valve (2) is connected to the filter water inlet (11), the pneumatic three-way valve (2) comprises a three-way valve water inlet (21), a backwashing water outlet (22) and a pneumatic elastic piece (23), when the pneumatic three-way valve (2) is closed, the three-way valve water inlet (21) is communicated with the filter water inlet (11), and when the pneumatic three-way valve (2) is opened, the backwashing water outlet (22) is communicated with the filter water outlet (12); the aeroelastic member (23) is configured to close or open the pneumatic three-way valve (2);
a compressed air pump (3); and
the pneumatic elastic piece (23) is connected with the pneumatic elastic piece (23), one end of the valve closing air pipe (4) is connected with the pneumatic elastic piece (23), the other end of the valve closing air pipe is communicated with the compressed air pump (3), and the compressed air pump (3) applies valve closing pressure to the pneumatic elastic piece (23) through the valve closing air pipe (4).
2. A bypass filter system for reducing three-way valve sticking according to claim 1, characterized in that said aeroelastic member (23) comprises a diaphragm top end (231) and a diaphragm bottom end (232), said shut-off valve air pipe (4) is connected to said diaphragm top end (231) and applies said shut-off valve pressure to said diaphragm top end (231).
3. The bypass filter system for reducing three-way valve sticking according to claim 2, further comprising a valve opening air pipe (5), wherein one end of the valve opening air pipe (5) is connected to the membrane bottom end (232), the other end is communicated with the compressed air pump (3), and the compressed air pump (3) applies a valve opening pressure to the membrane bottom end (232) through the valve opening air pipe (5).
4. The bypass filter system for reducing three-way valve jamming according to claim 3, further comprising a solenoid valve (6), wherein the solenoid valve (6) comprises a normally open interface (61) and a normally closed interface (62), one end of the normally open interface (61) is communicated with the valve closing air pipe (4), and the other end is communicated with the compressed air pump (3); one end of the normally closed interface (62) is communicated with the valve opening air pipe (5), and the other end is communicated with the atmospheric ditch (100).
5. A bypass filter system for reducing three-way valve sticking according to claim 1, further comprising a pressure reducing valve (7), said pressure reducing valve (7) being disposed on said shut-off gas pipe (4), said pressure reducing valve (7) being configured to control said shut-off pressure.
6. A by-pass filtration system for reducing three-way valve sticking according to claim 5, characterized in that the pressure reducing valve (7) is capable of controlling the shut-off pressure to 0.2 MPa-0.4 MPa.
7. A bypass filter system for reducing three-way valve sticking according to claim 4, characterized in that the solenoid valve (6) further comprises an air outlet (63), the air outlet (63) is communicated with the atmospheric water ditch (100), and the valve closing air pipe (4) is communicated with the air outlet (63) when the solenoid valve (6) is electrified.
8. A bypass filter system for reducing three-way valve sticking according to any of claims 1-7, characterized by further comprising a circulation inlet pipe communicating with the three-way valve inlet (21), the circulation inlet pipe being configured to input waste water to be filtered.
9. The bypass filter system for reducing three-way valve sticking as recited in any of claims 1-7, further comprising a drain in communication with the backwash drain (22), the drain configured to output backwash wastewater.
10. The bypass filter system for reducing three-way valve sticking according to any one of claims 1 to 7, further comprising a water outlet pipe and a clean water pipe, wherein the water outlet pipe and the clean water pipe are connected in parallel with the filter water outlet (12), the water outlet pipe is communicated with a cooling tower, and the clean water pipe is configured to input backwash clean water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110534491.8A CN113230739A (en) | 2021-05-17 | 2021-05-17 | Side filtering system for reducing clamping stagnation of three-way valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110534491.8A CN113230739A (en) | 2021-05-17 | 2021-05-17 | Side filtering system for reducing clamping stagnation of three-way valve |
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| CN113230739A true CN113230739A (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110534491.8A Pending CN113230739A (en) | 2021-05-17 | 2021-05-17 | Side filtering system for reducing clamping stagnation of three-way valve |
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|---|---|---|---|---|
| GB961320A (en) * | 1961-03-21 | 1964-06-17 | Koelsch Foelzer Werke Ag | Improvements in or relating to methods of and apparatus for separating a suspension into residue and filtrate |
| CN201141453Y (en) * | 2007-12-26 | 2008-10-29 | 胡高中 | Two-position three-way valve device |
| CN201280443Y (en) * | 2008-10-08 | 2009-07-29 | 国网运行有限公司上海超高压管理处 | Industrial water pretreatment equipment of convertor station |
| CN103080565A (en) * | 2010-08-23 | 2013-05-01 | 克斯美库股份有限公司 | Directional control valve device |
| CN202091552U (en) * | 2011-03-28 | 2011-12-28 | 东台市东方船舶装配有限公司 | Pneumatic three-way valve |
| CN202812302U (en) * | 2012-09-27 | 2013-03-20 | 吴小学 | Hydraulic membrane two-position three-way valve |
| CN204996189U (en) * | 2015-09-28 | 2016-01-27 | 营口鑫丰源机械设备有限公司 | Other system of straining of integrated multi -ported valve circulating water |
| CN205877368U (en) * | 2016-08-03 | 2017-01-11 | 上海一核阀门制造有限公司 | Two effect execution control mechanisms of air piston formula |
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Application publication date: 20210810 |