CN201202854Y - Water hammer-proof double-non-return protection valve - Google Patents
Water hammer-proof double-non-return protection valve Download PDFInfo
- Publication number
- CN201202854Y CN201202854Y CNU2007200699806U CN200720069980U CN201202854Y CN 201202854 Y CN201202854 Y CN 201202854Y CN U2007200699806 U CNU2007200699806 U CN U2007200699806U CN 200720069980 U CN200720069980 U CN 200720069980U CN 201202854 Y CN201202854 Y CN 201202854Y
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- CN
- China
- Prior art keywords
- valve
- diaphragm
- barrier film
- water hammer
- double
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a waterproof hammer double check protective valve which comprises a valve body, a plurality of ball valves, a check valve, an automatic exhaust valve, a filter and a pressure gauge; a double-diaphragm three-cavity chamber structure which includes a first layer diaphragm and a second layer diaphragm arranged under the first diaphragm, connected with the first diaphragm through a sealed sliding valve rod and used for starting the spare valve automatically; the waterproof hammer double check protective has the advantages of preventing the accident caused by the cracking of a single diaphragm; having good water hammer elimination effect and preventing the accidents due to the cracking of the diaphragm through the matching of the double-diaphragm three-cavity chamber structure, and convenient operation.
Description
Technical field
The utility model relates to a kind of exit of pump pipeline that is used for some important water supply systems, prevents that medium from flowing backwards, and prevents the two non-return Protective valves of anti-water hammer that water hammer and water hammer produce.
Background technique
At present, the structure of using Protective valve in industry-by-industry is a lot, has basically formed a cover mature technique, but can't eliminate water hammer because of existing water pump product on water pump system equipment, prevents that water hammer from producing.So adopt single barrier film Protective valve to alleviate water hammer and water hammer, in case diaphragm failures, water hammer produced when medium refluence hydraulic pressure backwashed, and the safety reliability of water supply still can not be protected, and influenced that water delivery is working properly to be carried out.
Summary of the invention
In order to solve the problem in the background technique; the utility model provides a kind of novel anti-water hammer two non-return Protective valves; it comprises: valve body; some ball valves; safety check; needle type valve; automatic control pressure vent; filter and pressure gauge; also be provided with in the described valve body and comprise the first layer barrier film and be positioned at first layer barrier film below is connected in the standby second layer barrier film of the automatic startup of first layer barrier film via the sliding stem of a sealing two barrier films three chamber structures; promptly automatic startup of the second layer barrier film of below works on when first layer barrier film film damages; thereby for water supply security provides possibility; so; it is two that not only to eliminate water hammer every the membranes and three chambers driving mechanism effective; and can prevent that membrane ruptures from causing the accident, easy to operate.
The beneficial effects of the utility model are, the two non-return Protective valves of the anti-water hammer of this practicality, and it is effective, easy to operate to eliminate water hammer, can effectively avoid the generation of accident.
Description of drawings
Fig. 1 is a three-dimensional schematic cross-section of the present utility model.
Among the figure: 1, control ball valve 2, control ball valve 3, control ball valve 4, control ball valve
5, control ball valve 6, control ball valve 7, control ball valve 8, return to end valve
9, needle value 10, outlet valve 11, filter 12, pressure gauge
Embodiment
Below in conjunction with drawings and Examples the utility model is further detailed
The two non-return Protective valves of the anti-water hammer of the utility model are a kind of Protective valves that are applicable to the water pump water supply system, and it is by valve body, control ball valve 1.2.3.4.5.6.7, safety check 8; needle value 9, automatic control pressure vent 5, filters 11; pressure gauge 12 is twoly formed every the membranes and three chambers driving mechanism.During proper functioning, ball valve 1.3.7 is an opening state, and 2.4.6 is a closed condition.
Increase by an independent barrier film driving mechanism above the barrier film of common single chamber hydraulic control valve, this driving mechanism can be by the sliding stem (not indicating among the figure) of a sealing, and the barrier film mechanism that drives the below comes work.When the barrier film driving mechanism of top breaks down membrane ruptures (during the first layer membrane ruptures), driven medium imports the barrier film driving mechanism work that starts the below in the barrier film driving mechanism of below automatically by a conduit that valve arranged, and barrier film driving mechanism that can online manual-lock top splits out barrier film and changes.
Water flows through by valve pocket during work, make on the cavity of resorption valve disc lower diaphragm plate to move, when water passes through, a part of water by ball valve 1, filter 11, needle value 9, safety check 8, enter valve pocket, and flow out by control ball valve 7.Ball valve 3 connects the lumen cavity of resorption of main valve, and when valve disc moved, air can be discharged or suck from outlet valve 10.When water pump quits work, the hydraulic pressure refunds, following valve disc is in the enable possition under flow action, and current enter the valve epicoele by control ball valve 5.Because safety check 8 cuts out water and can't flow out, pressure is depressed main valve with valve disc and is closed.The adjustable water saving of the switch size speed that enters epicoele of control ball 7 is used for the closing velocity of control valve, prevents to produce water hammer.In case the first layer barrier film is damaged, this valve also has the standby barrier film of the second layer.When the first layer diaphragm failures, standby second layer barrier film will start automatically.This process realizes by ball valve 3 and outlet valve 10.When the first layer diaphragm failures, water injects middle chamber by barrier film, and by ball valve 3 inflow lower chambers, three chambers in upper, middle and lower are connected as a single entity, air is discharged from outlet valve 10, and hydraulic action is on second layer barrier film, and second layer barrier film works, guarantee that valve normally moves, guarantee On-line Product replacing diaphragm.
Replacing method: open ball valve 2.6, close 1.3.7.Valve upper chamber will separate with system this moment, and barrier film is changed in the maintenance of upper chamber can being disintegrated.After installing, open ball valve 1.3.7, close 2.6.Ball valve 4 is opened closing behind the water row light.Valve will use the work of first layer barrier film.
Be characterized in: 1 elimination water hammer is effective. This valve with speed close, the know-why of Slow Close, removing water hammer is integrated, anti-The sealing hammer produces; 2 pairs of barrier film three chamber structures. The two membrane configurations of three chambers are adopted in the design of this valve, can prevent diaphragm failures Cause the accident, can see intuitively diaphragm failures, can change online barrier film; 3 is easy to operate. After this valve Primary regulation is good, Only need the operation pump motor to open and close button, valve is namely realized automatic shutter according to the program that mixes up in advance.
Claims (1)
1. the two non-return Protective valves of anti-water hammer; it is characterized in that: comprising: valve body, some ball valves; safety check, automatic control pressure vent, filter and pressure gauge also are provided with in the described valve body and comprise the first layer barrier film and be positioned at first layer barrier film below is connected in the standby second layer barrier film of the automatic startup of first layer barrier film via the sliding stem of a sealing two barrier films three chamber structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200699806U CN201202854Y (en) | 2007-05-18 | 2007-05-18 | Water hammer-proof double-non-return protection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200699806U CN201202854Y (en) | 2007-05-18 | 2007-05-18 | Water hammer-proof double-non-return protection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201202854Y true CN201202854Y (en) | 2009-03-04 |
Family
ID=40425165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200699806U Expired - Lifetime CN201202854Y (en) | 2007-05-18 | 2007-05-18 | Water hammer-proof double-non-return protection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201202854Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996848A (en) * | 2011-09-08 | 2013-03-27 | 彭新民 | Diaphragm stop valve with double diaphragms |
| CN104251337A (en) * | 2013-06-27 | 2014-12-31 | 王志敏 | Novel water hammer eliminating valve |
-
2007
- 2007-05-18 CN CNU2007200699806U patent/CN201202854Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996848A (en) * | 2011-09-08 | 2013-03-27 | 彭新民 | Diaphragm stop valve with double diaphragms |
| CN104251337A (en) * | 2013-06-27 | 2014-12-31 | 王志敏 | Novel water hammer eliminating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090304 |
|
| CX01 | Expiry of patent term |