CN212900361U - Back-cleaning air valve - Google Patents
Back-cleaning air valve Download PDFInfo
- Publication number
- CN212900361U CN212900361U CN202020866628.0U CN202020866628U CN212900361U CN 212900361 U CN212900361 U CN 212900361U CN 202020866628 U CN202020866628 U CN 202020866628U CN 212900361 U CN212900361 U CN 212900361U
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- China
- Prior art keywords
- pipe body
- water hole
- pipe
- filter screen
- air valve
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- Expired - Fee Related
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Abstract
The utility model discloses a back-washing air valve, belonging to the technical field of air valve operation management, comprising a pipe body, wherein a filter screen is arranged in the pipe body, and the outer ring wall of the filter screen is connected with the inner ring wall of the pipe body; a sewage draining outlet penetrating the inner part is formed in the outer ring wall of the pipe body; the sewage draining port is positioned below the filter screen; a drain pipe is communicated with the drain outlet, and a first control device capable of sealing the drain pipe is connected to the drain pipe; the pipe body is connected with a second control device capable of disconnecting the pipeline inside the pipe body; the second control device is arranged below the sewage draining exit; the outer ring wall of the pipe body is provided with a first water hole and a second water hole which penetrate through the pipe body; the first water hole is positioned above the filter screen, and the second water hole is positioned below the second control device; a conduit is arranged between the first water hole and the second water hole; one end of the conduit is communicated with the first water hole, and the other end of the conduit is communicated with the second water hole; the conduit is provided with a filtering device and a third control device which can cut off the pipeline in the conduit.
Description
Technical Field
The utility model belongs to the technical field of the air valve operation management, concretely relates to anti-washing air valve.
Background
Water column separation is often generated due to pressure reduction in the power failure or pump stop process of a high water pipeline or a longer water pipeline, and an air valve can be additionally arranged for protecting the pipeline. The air valve is sometimes called an exhaust valve or an intake valve. Air valves are arranged at the high point of a pressure water tank of a pump station and on each water conveying pipeline and are used for discharging air in the water conveying pipeline outwards when the water conveying pipeline is filled with water at the initial stage and the pipeline is periodically overhauled, so that pressure fluctuation is avoided; when the water hammer generated by the water conveying pipeline generates negative pressure, the air valve is opened to enable air outside the pipeline to enter the pipeline so as to prevent larger negative pressure from being generated in the pipeline and play a role in protection; when the pipeline system is operated, when the air dissolved in water is released due to the change of pressure or temperature in the pipeline, the air valve discharges the air in time, and the air bag formed in the pipeline is prevented from influencing the operation of the pipeline system.
At present, when the traditional air valve is used, no foreign matter filtering device or foreign matter device is used, so that the foreign matter and foreign matter are easy to block and block, the large exhaust port is drained, and the micro exhaust port loses the exhaust function.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a reverse cleaning air valve to there is not filtering foreign matter, impurity device when solving the air valve among the prior art and using and leads to impurity, foreign matter, easy card and hinder, jam when using, causes big exhaust port running water, and the problem that the trace gas vent loses exhaust function.
In order to achieve the above object, the present invention provides the following technical solutions: a back-cleaning air valve comprises a pipe body, wherein a filter screen is arranged in the pipe body, and the outer ring wall of the filter screen is connected with the inner ring wall of the pipe body; a sewage draining outlet penetrating through the inner part is formed in the outer ring wall of the pipe body; the sewage draining outlet is positioned below the filter screen; a drain pipe is communicated with the drain outlet, and a first control device capable of sealing the drain pipe is connected to the drain pipe; the pipe body is connected with a second control device capable of disconnecting the pipeline inside the pipe body; the second control device is arranged below the sewage draining outlet; the outer ring wall of the pipe body is provided with a first water hole and a second water hole which penetrate through the pipe body; the first water hole is positioned above the filter screen, and the second water hole is positioned below the second control device; a conduit is arranged between the first water hole and the second water hole; one end of the conduit is communicated with the first water hole, and the other end of the conduit is communicated with the second water hole; the conduit is provided with a filtering device and a third control device capable of disconnecting the pipeline inside the conduit.
Further, a pressure adjusting device capable of adjusting the internal pressure of the pipe body is arranged on the pipe body.
Further, the pressure adjusting device comprises an air pipe, one end of the air pipe is communicated with the pipe body, and the other end of the air pipe is connected with a detachable end cover in a sealing mode; the end cover is provided with a first air inlet communicated with the air pipe; and a sealing mechanism capable of sealing the first air inlet is arranged in the air pipe.
Furthermore, the sealing mechanism comprises a base plate vertically connected to the inner part of the air pipe, a second air inlet communicated with the pipe body is formed in one side, close to the end cover, of the base plate, and the outer ring wall of the base plate is connected with the inner ring wall of the air pipe in a sealing mode; a sliding rod is arranged between the base plate and the end cover; one end of the sliding rod is connected with the substrate, and the other end of the sliding rod is connected with the end cover; the inner ring wall of the end cover is connected with a baffle ring; a sealing plate is sleeved on the sliding rod in a sliding manner; the sealing plate is positioned between the base plate and the baffle ring; the sealing plate can seal the inner hole of the baffle ring; the sliding rod is sleeved with a compression spring; the compression spring is between the base plate and the sealing plate.
Furthermore, the air pipe, the end cover, the base plate, the sliding rod, the baffle ring and the sealing plate are positioned on the same axis.
Furthermore, the surface of the sealing plate is larger than the area of the inner ring of the baffle ring.
Further, the surface of the sealing plate is provided with rubber.
Further, the first control device comprises a ball valve.
Further, the second control device comprises a valve.
Further, the filtering device comprises a filter.
The utility model has the advantages of as follows: when the air valve is used, the second control device is in a normally open state, water flows from the bottom of the pipe body, enters the air valve from the top of the pipe body after being filtered by the filter screen, and can filter impurities in fluid through the filter screen to prevent the air valve from being blocked; after the filter screen is used for a period of time, the filter screen needs to be cleaned, when the filter screen needs to be cleaned, the second control device is closed (the second control device is in an open state when the filter screen is not cleaned), then the first control device (the first control device is in a closed state when the filter screen is not cleaned) and the second control device (the second control device is in a closed state when the filter screen is not cleaned) are sequentially opened, pipeline pressure water enters the upper cavity of the filter screen through the guide pipe and penetrates through holes of the filter screen, impurities on the filter screen are immediately brought out, the foreign matters and water flow are brought out through the blow-off pipe; the efficiency of the filter screen in filtering is improved, the life of filter screen is improved simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic view of an overall structure of a back washing air valve according to an embodiment of the present invention;
fig. 2 is a schematic view of a connection structure of a pressure adjustment device of a backwashing air valve according to an embodiment of the present invention.
In the figure: the device comprises a pipe body 1, a filter screen 2, a guide pipe 3, a sewage discharge pipe 4, a second control device 5, a first water hole 11, a second water hole 12, a sewage discharge outlet 13, a filtering device 31, a third control device 32, a first control device 41, an air pipe 61, an end cover 62, a base plate 63, a sliding rod 64, a first air inlet 65, a second air inlet 66, a baffle ring 67, a sealing plate 68 and a compression spring 69.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The utility model provides a backwashing air valve, please refer to fig. 1, which comprises a pipe body 1, wherein the outer ring of the middle part of the pipe body is of an outward convex structure, the inner ring wall is of an inward concave structure, a filter screen 2 is arranged inside the pipe body 1 for widening the inner diameter of the pipe body, and the outer ring wall of the filter screen 2 is connected with the inner ring wall of the pipe body 1; the filter screen is horizontally arranged at the concave position of the pipe body 1. The total area of the mesh of the filter screen is equal to the air valve flow area. The purpose of not influencing water flow is achieved.
A sewage outlet 13 penetrating the inner part is formed in the outer ring wall of the pipe body 1; the sewage outlet 13 is positioned below the filter screen 2; the drain outlet 13 is communicated with a drain pipe 4, and the drain pipe 4 is connected with a first control device 41 capable of sealing the drain pipe 4. The first control device 41 of the present embodiment employs a ball valve. The ball valve is communicated with the sewage discharge pipe 4. Controlling the opening and closing of the sewage draining pipe.
The pipe body 1 is connected with a second control device 5 capable of disconnecting the pipeline in the pipe body 1; the second control device 5 is arranged below the sewage draining exit 13. The second control device 5 of the present embodiment employs a valve. Used for controlling the opening and closing of the pipeline in the pipe body.
A first water hole 11 and a second water hole 12 which penetrate through the inner part are formed on the outer ring wall of the pipe body 1; the first water hole 11 is positioned above the filter screen 2, and the second water hole 12 is positioned below the second control device 5; a conduit 3 is arranged between the first water hole 11 and the second water hole 12.
One end of the conduit 3 is communicated with the first water hole 11, and the other end of the conduit 3 is communicated with the second water hole 12; the conduit 3 is provided with a filtering device 31 and a third control device 32 capable of disconnecting the internal circuit of the conduit 3. The third control device 32 of the present embodiment employs the same ball valve as the first control device. Used for controlling the opening and closing of the catheter.
When the device is used, the top of the pipe body 1 is communicated with the air valve B through a flange, and water enters the bottom of the pipe body 1; when the air valve is used, the valve is in a normally open state, water flows enter from the bottom of the pipe body, are filtered by the filter screen and then enter the air valve from the top of the pipe body, and impurities in fluid can be filtered by the filter screen to prevent the air valve from being blocked; after the filter screen is used for a period of time, the filter screen needs to be cleaned, when the filter screen needs to be cleaned, the air valve is closed, the valve is closed (the valve is in an open state when the filter screen is not cleaned), then the ball valve on the guide pipe (the valve is in a closed state when the filter screen is not cleaned) and the ball valve on the drain pipe (the valve is in a closed state when the filter screen is not cleaned) are opened in sequence, pipeline pressure water enters the upper cavity of the filter screen through the guide pipe and passes through the holes of the filter screen, impurities on the filter screen are taken out, the foreign matters and water flow are taken out through; the efficiency of the filter screen in filtering is improved, the life of filter screen is improved simultaneously.
Example 2
The utility model provides a backwashing air valve, please refer to fig. 1, which comprises a pipe body 1, wherein the outer ring of the middle part of the pipe body is of an outward convex structure, the inner ring wall is of an inward concave structure, a filter screen 2 is arranged inside the pipe body 1 for widening the inner diameter of the pipe body, and the outer ring wall of the filter screen 2 is connected with the inner ring wall of the pipe body 1; the filter screen is horizontally arranged at the concave position of the pipe body 1. The total area of the mesh of the filter screen is equal to the air valve flow area. The purpose of not influencing water flow is achieved. A sewage outlet 13 penetrating the inner part is formed in the outer ring wall of the pipe body 1; the sewage outlet 13 is positioned below the filter screen 2; the drain outlet 13 is communicated with a drain pipe 4, and the drain pipe 4 is connected with a first control device 41 capable of sealing the drain pipe 4. The first control device 41 of the present embodiment employs a ball valve. The ball valve is communicated with the sewage discharge pipe 4. Controlling the opening and closing of the sewage draining pipe. The pipe body 1 is connected with a second control device 5 capable of disconnecting the pipeline in the pipe body 1; the second control device 5 is arranged below the sewage draining exit 13. The second control device 5 of the present embodiment employs a valve. Used for controlling the opening and closing of the pipeline in the pipe body. A first water hole 11 and a second water hole 12 which penetrate through the inner part are formed on the outer ring wall of the pipe body 1; the first water hole 11 is positioned above the filter screen 2, and the second water hole 12 is positioned below the second control device 5; a conduit 3 is arranged between the first water hole 11 and the second water hole 12. One end of the conduit 3 is communicated with the first water hole 11, and the other end of the conduit 3 is communicated with the second water hole 12; the conduit 3 is provided with a filtering device 31 and a third control device 32 capable of disconnecting the internal circuit of the conduit 3. The third control device 32 of the present embodiment employs the same ball valve as the first control device. Used for controlling the opening and closing of the catheter.
When the device is used, the top of the pipe body 1 is communicated with the air valve B through a flange, and water enters the bottom of the pipe body 1; when the air valve is used, the valve is in a normally open state, water flows enter from the bottom of the pipe body, are filtered by the filter screen and then enter the air valve from the top of the pipe body, and impurities in fluid can be filtered by the filter screen to prevent the air valve from being blocked; after the filter screen is used for a period of time, the filter screen needs to be cleaned, when the filter screen needs to be cleaned, the air valve is closed, the valve is closed (the valve is in an open state when the filter screen is not cleaned), then the ball valve on the guide pipe (the valve is in a closed state when the filter screen is not cleaned) and the ball valve on the drain pipe (the valve is in a closed state when the filter screen is not cleaned) are opened in sequence, pipeline pressure water enters the upper cavity of the filter screen through the guide pipe and passes through the holes of the filter screen, impurities on the filter screen are taken out, the foreign matters and water flow are taken out through; the efficiency of the filter screen in filtering is improved, the life of filter screen is improved simultaneously.
In the preferred embodiment, referring to fig. 2, the tube 1 is provided with a pressure adjusting device capable of adjusting the pressure inside the tube 1. The pressure regulating device comprises an air pipe 61, one end of the air pipe 61 is communicated with the pipe body 1, and the other end of the air pipe 61 is hermetically connected with a detachable end cover 62; the end cover 62 is provided with a first air inlet 65 communicated with the air pipe 61; a closing mechanism capable of closing the first intake port 65 is provided in the air pipe 61.
The sealing mechanism comprises a base plate 63 vertically connected to the inner part of the air pipe 61, one side of the base plate 63 close to the end cover 62 is provided with a second air inlet 66 communicated with the pipe body 1, and the outer ring wall of the base plate 63 is hermetically connected with the inner ring wall of the air pipe 61; a sliding rod 64 is arranged between the base plate 63 and the end cover 62; one end of a sliding rod 64 is connected with the base plate 63, and the other end of the sliding rod 64 is connected with the end cover 62;
the inner ring wall of the end cover 62 is connected with a baffle ring 67; a sealing plate 68 is slidably sleeved on the sliding rod 64; the sealing plate 68 is located between the base plate 63 and the baffle ring 67; the sealing plate 68 can seal the inner hole of the baffle ring 67; a compression spring 69 is sleeved on the sliding rod 64; a compression spring 69 is located between the base plate 63 and the sealing plate 68.
Further, the air tube 61, the end cap 62, the base plate 63, the slide rod 64, the baffle ring 67, and the sealing plate 68 are coaxial. The sealing plate 68 has a plate surface larger than the inner ring area of the baffle ring 67. The sealing plate 68 is provided with rubber on the surface, so that the effects of noise reduction and shock absorption are achieved, and the sealing purpose is improved.
When the air sucking pipe is used, when negative pressure is generated in the pipe body, the sealing plate is wrapped to compress the spring to assist the air valve to suck air, in the specific process, after air enters the inner hole of the baffle ring from the first air inlet, the sealing plate is pushed towards the interior of the air pipe due to the fact that the pressure is strong and the air enters the pipe body from the second air inlet, and the internal pressure of the pipe body is balanced; when the pressure in the pipe body returns to normal, the sealing plate returns to the original position under the action of the compression spring, so that the purpose of sealing the baffle ring is achieved, and water leakage is prevented.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (10)
1. The back-cleaning air valve is characterized by comprising a pipe body, wherein a filter screen is arranged in the pipe body, and the outer ring wall of the filter screen is connected with the inner ring wall of the pipe body;
a sewage draining outlet penetrating through the inner part is formed in the outer ring wall of the pipe body; the sewage draining outlet is positioned below the filter screen; a drain pipe is communicated with the drain outlet, and a first control device capable of sealing the drain pipe is connected to the drain pipe;
the pipe body is connected with a second control device capable of disconnecting the pipeline inside the pipe body; the second control device is arranged below the sewage draining outlet;
the outer ring wall of the pipe body is provided with a first water hole and a second water hole which penetrate through the pipe body; the first water hole is positioned above the filter screen, and the second water hole is positioned below the second control device; a conduit is arranged between the first water hole and the second water hole;
one end of the conduit is communicated with the first water hole, and the other end of the conduit is communicated with the second water hole; the conduit is provided with a filtering device and a third control device capable of disconnecting the pipeline inside the conduit.
2. The backwash air valve as claimed in claim 1, wherein said tubular body is provided with a pressure adjusting means capable of adjusting the pressure inside said tubular body.
3. The backwash air valve as claimed in claim 2, wherein said pressure adjusting means comprises an air tube having one end communicating with said tubular body and the other end sealingly connected to a removable end cap; the end cover is provided with a first air inlet communicated with the air pipe; and a sealing mechanism capable of sealing the first air inlet is arranged in the air pipe.
4. The backwash air valve as claimed in claim 3, wherein said closing mechanism comprises a base plate vertically connected to the interior of said air tube, a second air inlet communicating with said tube body is opened at a side of said base plate close to said end cap, and an outer circumferential wall of said base plate is connected with said inner circumferential wall of said air tube in a sealing manner; a sliding rod is arranged between the base plate and the end cover; one end of the sliding rod is connected with the substrate, and the other end of the sliding rod is connected with the end cover;
the inner ring wall of the end cover is connected with a baffle ring; a sealing plate is sleeved on the sliding rod in a sliding manner; the sealing plate is positioned between the base plate and the baffle ring; the sealing plate can seal the inner hole of the baffle ring; the sliding rod is sleeved with a compression spring; the compression spring is between the base plate and the sealing plate.
5. The backwash air valve as claimed in claim 4, wherein said air pipe, said end cap, said base plate, said slide rod, said baffle ring and said sealing plate are coaxially aligned.
6. The backwash air valve as in claim 4 wherein said seal plate surface is larger than said baffle ring inner ring area.
7. A backwash air valve as claimed in claim 4 wherein the sealing plate surface is provided with rubber.
8. A backwash air valve as claimed in claim 1 wherein said first control means comprises a ball valve.
9. A backwash air valve as claimed in claim 1 wherein said second control means comprises a valve.
10. A backwash air valve as claimed in claim 1 wherein the filter means comprises a filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020866628.0U CN212900361U (en) | 2020-05-21 | 2020-05-21 | Back-cleaning air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020866628.0U CN212900361U (en) | 2020-05-21 | 2020-05-21 | Back-cleaning air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212900361U true CN212900361U (en) | 2021-04-06 |
Family
ID=75265914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020866628.0U Expired - Fee Related CN212900361U (en) | 2020-05-21 | 2020-05-21 | Back-cleaning air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212900361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113577873A (en) * | 2021-08-24 | 2021-11-02 | 泰能天然气有限公司 | Filtering device |
-
2020
- 2020-05-21 CN CN202020866628.0U patent/CN212900361U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113577873A (en) * | 2021-08-24 | 2021-11-02 | 泰能天然气有限公司 | Filtering device |
| CN113577873B (en) * | 2021-08-24 | 2022-08-12 | 泰能天然气有限公司 | Filtering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210406 |
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| CF01 | Termination of patent right due to non-payment of annual fee |