CN202868010U - Composite vent valve assembly with filter backwashing function - Google Patents
Composite vent valve assembly with filter backwashing function Download PDFInfo
- Publication number
- CN202868010U CN202868010U CN 201220521526 CN201220521526U CN202868010U CN 202868010 U CN202868010 U CN 202868010U CN 201220521526 CN201220521526 CN 201220521526 CN 201220521526 U CN201220521526 U CN 201220521526U CN 202868010 U CN202868010 U CN 202868010U
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- CN
- China
- Prior art keywords
- valve
- filter screen
- main exhaust
- exhaust valve
- filters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a composite vent valve assembly with a filter backwashing function. The composite vent valve assembly with the filter backwashing function comprises a main vent valve, a communicated service valve is connected with an inlet of the main vent valve, a filter screen is arranged between the inlet of the main vent valve and the service valve, a reverse water inlet is formed in a valve body of the inlet end of the service valve, a sundry outlet is formed in the valve body of the service valve outlet end, and a trace vent valve and the reverse water inlet are communicated with a cavity body of the valve body of the main vent valve at the rear end of the filter screen through a pipeline. Sundries in the pipeline are filtered by the filter screen which is arranged between an inlet of the main vent valve and an outlet of the service valve, water in the pipeline is backward inserted into the main vent valve to backward wash the filter screen through the reverse water inlet on the service valve, and then the sundries are discharged from the sundry outlet through the pipeline so that an anti-blocking function can be achieved.
Description
Technical field
The utility model belongs to the outlet valve in the pipeline, is specifically related to a kind of composite exhaust valve.
Background technique
At present composite exhaust valve comprises the valve body of vertical runner, connects valve gap on the valve body, and valve body is established carriage, and carriage is provided with ball float, the runner hole wall of valve gap be provided with and ball float between sealing pair, and the top of valve body is connected with micro-exhaust valve.Yet can sneak into foreign material in pipeline, foreign material can stop up the outlet valve entrance in exhaust process, thereby affect the normal operation of outlet valve.
Summary of the invention
The purpose of this utility model is to provide a kind of band with anti-blockage function to filter the composite bar air valve group of backwash function.
The technical solution adopted in the utility model is: band filters the composite bar air valve group of backwash function, comprises main exhaust valve, and main exhaust valve valve body below is provided with perforate; Micro-exhaust valve connects perforate by pipeline and is communicated with main exhaust valve; Be connected the service valve of UNICOM with the main exhaust valve import, it is characterized in that: also comprise
Between main exhaust valve import and service valve, be provided with filter screen;
Valve body at the service valve entrance point is provided with reverse water intake, is provided with miscellaneous object outlet at the valve body of service valve outlet end;
Oppositely water intake is communicated with the main exhaust valve valve body cavity of filter screen rear end by reverse intake pipe.
Preferably, described filter screen external diameter is greater than the internal diameter of main exhaust valve valve body suction flange, and it cooperates is interference fit.
Preferably, described filter screen is connected by Cock screw with main exhaust valve valve body suction flange.
Preferably, described filter screen is located in the main exhaust valve valve body.
Preferably, be connected by T connector between described micro-exhaust valve and the perforate, a wherein end of T connector is connected with reverse intake pipe outlet.
Further preferred, be provided with ball valve between described reverse intake pipe and the T connector.
Preferably, described filter screen comprises net circle and screen, and screen is arranged in the net circle in length and breadth, and the flat board of screen arranges along the media flow direction.
Preferably, the area of passage of filter screen is at least 90%.
The beneficial effects of the utility model are: by being located at the foreign material in the strainer filtering pipeline between the outlet of main exhaust valve import and service valve, by the reverse water intake on the service valve water in the pipeline is oppositely accessed the main exhaust valve inner counter to flushing filtering net, again foreign material are discharged by pipeline from miscellaneous object outlet, thus the anti-blockage function of realizing.Screen in length and breadth be welded on the upper filter screen that forms of net circle, not only satisfied filter require simultaneously can pipeline in hydraulic pressure, and less on the area of passage impact, screen plate face is arranged along the media flow direction simultaneously, has improved impact resistance.
Description of drawings
Fig. 1 is the composite bar air valve group structure diagram that band filters the backwash function
Fig. 2 is the filter screen scheme of installation
Fig. 3 is the filter structure schematic representation
Embodiment
As shown in Figure 1, band filters the composite bar air valve group of backwash function, comprise main exhaust valve 1, the service valve 3 that connects with main exhaust valve 1 import, be provided with filter screen 4 between main exhaust valve 1 import and the service valve 3, the valve body of service valve 3 entrance points is provided with reverse water intake 5, the valve body of service valve 3 outlet end is provided with miscellaneous object outlet 6, be connected by T connector 11 between micro-exhaust valve 2 and the perforate 10, a wherein end of T connector 11 is connected with reverse intake pipe 7 outlets, oppositely also be provided with ball valve 12 between intake pipe 7 and the T connector 11, miscellaneous object outlet 6 is discharged foreign material by pipeline.
As shown in Figure 2, filter screen 4 external diameters are slightly larger than the internal diameter of main exhaust valve valve body suction flange 8, and it cooperates is interference fit, and filter screen 4 is located in main exhaust valve 1 valve body, is connected by Cock screw 9 with main exhaust valve valve body suction flange 8.
As shown in Figure 3, filter screen comprises net circle 13 and screen 14, and screen 14 is arranged in the net circle 13 in length and breadth, and the flat board of screen 14 arranges along the media flow direction, and said structure can effectively increase the impact resistance of filter screen, improves the life-span of filter screen.Existing filter screen adopts common reticular structure, and its shock resistance is poor, and working life is low; In the present embodiment, the area of passage that guarantees filter screen that arranges of screen is at least 90%.
The realization of filtering function: open service valve 3, close simultaneously ball valve 12, gas enters main exhaust valve 1 valve inner from service valve 3, gas is discharged by main exhaust valve 1 and micro-exhaust valve 2, the foreign material that are mingled with in the pipeline do not enter in the main exhaust valve 1 under the effect of filter screen 4, thereby have realized filtering function.Simultaneously screen 14 in length and breadth be welded on the filter screen that forms on the net circle 13, not only satisfied filter require simultaneously can pipeline in hydraulic pressure, and less on the area of passage impact, screen 14 plate faces are arranged along the media flow direction simultaneously, have improved impact resistance.
The realization of backwashing function: close service valve 3, open simultaneously ball valve 12, press water in the pipeline flows into main exhaust valves 1 inside by reverse water intake 5 reverse intake pipe 7 and the T connector 11 of flowing through, water washes filter screen 4 from the rear end of filter screen 4, by miscellaneous object outlet 6 and pipeline foreign material are developed at last, realize backwashing function, effectively prevented the obstruction of outlet valve group, reached anticlogging purpose.
Claims (8)
1. band filters the composite bar air valve group of backwash function, comprises main exhaust valve, and main exhaust valve valve body below is provided with perforate; Micro-exhaust valve connects perforate by pipeline and is communicated with main exhaust valve; Service valve with the main exhaust valve import connects is characterized in that: also comprise
Between main exhaust valve import and service valve, be provided with filter screen;
Valve body at the service valve entrance point is provided with reverse water intake, is provided with miscellaneous object outlet at the valve body of service valve outlet end;
Oppositely water intake is communicated with the main exhaust valve valve body cavity of filter screen rear end by reverse intake pipe.
2. band as claimed in claim 1 filters the composite bar air valve group of backwash function, it is characterized in that: described filter screen external diameter is greater than the internal diameter of main exhaust valve valve body suction flange, and it cooperates is interference fit.
3. band as claimed in claim 1 filters the composite bar air valve group of backwash function, and it is characterized in that: described filter screen is connected by Cock screw with main exhaust valve valve body suction flange.
4. band as claimed in claim 1 filters the composite bar air valve group of backwash function, and it is characterized in that: described filter screen is located in the main exhaust valve valve body.
5. band as claimed in claim 1 filters the composite bar air valve group of backwash function, it is characterized in that: is connected by T connector between described micro-exhaust valve and the perforate, a wherein end of T connector exports with reverse intake pipe and is connected.
6. band as claimed in claim 5 filters the composite bar air valve group of backwash function, it is characterized in that: be provided with ball valve between described reverse intake pipe and the T connector.
7. band as claimed in claim 1 filters the composite bar air valve group of backwash function, it is characterized in that: described filter screen comprises net circle and screen, and screen is arranged in the net circle in length and breadth, and the flat board of screen arranges along the media flow direction.
8. such as the composite bar air valve group of claim 1 or 7 described bands filtration backwash functions, it is characterized in that: the area of passage of filter screen is at least 90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521526 CN202868010U (en) | 2012-10-10 | 2012-10-10 | Composite vent valve assembly with filter backwashing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521526 CN202868010U (en) | 2012-10-10 | 2012-10-10 | Composite vent valve assembly with filter backwashing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202868010U true CN202868010U (en) | 2013-04-10 |
Family
ID=48034730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220521526 Withdrawn - After Issue CN202868010U (en) | 2012-10-10 | 2012-10-10 | Composite vent valve assembly with filter backwashing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202868010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900887A (en) * | 2012-10-10 | 2013-01-30 | 武汉大禹阀门股份有限公司 | Combined exhaust valve group with filtrating and backwashing functions |
-
2012
- 2012-10-10 CN CN 201220521526 patent/CN202868010U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900887A (en) * | 2012-10-10 | 2013-01-30 | 武汉大禹阀门股份有限公司 | Combined exhaust valve group with filtrating and backwashing functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130410 Effective date of abandoning: 20140604 |
|
| RGAV | Abandon patent right to avoid regrant |