CN204961943U - Piston water hammer relief valve - Google Patents
Piston water hammer relief valve Download PDFInfo
- Publication number
- CN204961943U CN204961943U CN201520622307.5U CN201520622307U CN204961943U CN 204961943 U CN204961943 U CN 204961943U CN 201520622307 U CN201520622307 U CN 201520622307U CN 204961943 U CN204961943 U CN 204961943U
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- China
- Prior art keywords
- valve
- piston
- main valve
- pressure
- water hammer
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- 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 - Fee Related
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- Details Of Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a piston water hammer relief valve, including main valve and pilot valve, the pilot valve discharges regulation cap, high -pressure spring, piston and throttle awl by the high pressure to be formed, and high -pressure spring lies in high -pressure the emission to be adjusted between cap and the piston, and below the awl of reducing expenditure lay in the piston, the main valve included valve gap and valve body, was equipped with main valve import, main valve export and main valve motion control hole on the valve body, was equipped with the piston in the valve body, was equipped with the throttle below the piston and bored, was equipped with supporting spring on the throttle awl. The utility model provides a piston water hammer relief valve is through adopting high -pressure spring and supporting the spring to regard as the pressure -bearing component of pilot valve and main valve respectively for the relief valve is difficult for the loss in the course of the work, also when improving relief valve fail safe nature greatly, has reduced manufacturing cost, and it is more convenient to use, the relief valve is at the pressure release in -process in addition, and owing to the effect in air compression chamber in the main valve, the main valve can play the fast effect of slowly closing of opening.
Description
Technical field
The utility model relates to Decompression valves technical field, particularly relates to a kind of piston type water hammer Decompression valves.
Background technique
Existing water hammer discharge valve main valve and pilot valve all adopt elastomer diaphragm due to its pressure restraining element, exist easily aging.Change frequent in operation, especially to unattended at present, the water system of few man on duty, the requirement that difficult realization is often safeguarded and changed, will cause the safety of pipe-line system like this, there is hidden danger, once change not in time, valve cisco unity malfunction and accident will be caused.
Model utility content
For the deficiency that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of spring that uses as the piston type water hammer Decompression valves of pressure restraining element, make Decompression valves not easily loss, while the safety reliability greatly improving Decompression valves work, also reduce cost of production.
To achieve these goals, the technological scheme that the utility model adopts is:
A kind of piston type water hammer Decompression valves, comprise main valve and pilot valve, it is characterized in that, described pilot valve is bored by high-pressure discharge adjustment cap, high pressure spring, piston and throttling and is formed, described high pressure spring is between high-pressure discharge adjustment cap and piston, described throttling cone is positioned at below piston, described main valve comprises valve gap and valve body, described valve body is provided with main valve inlet, Main valve outlet and main valve events control hole, piston is provided with in described valve body, be provided with throttling cone below described piston, described throttling cone is provided with supported spring.
Preferred as technique scheme, described pilot valve is provided with control valve import and control valve outlet, described control valve import is connected with main valve inlet by connecting tube, described control valve outlet is two, one is connected with Main valve outlet by connecting tube, and another is connected with main valve events control hole by connecting tube.
Preferred as technique scheme, described piston and throttling cone move up and down and form air compressing chamber in valve body.
As can be seen from technique scheme, the piston type water hammer Decompression valves that the utility model provides, by adopting high pressure spring and supporting that spring is respectively as the pressure restraining element of pilot valve and main valve, make Decompression valves not easily loss in the course of the work, also while greatly improving Decompression valves safety reliability, reduce cost of production, use more convenient; Decompression valves is in pressure leak process in addition, and due to the effect in air compressing chamber in main valve, main valve can play the action effect of fast-opening slowly-closing, thus prevents the generation of secondary water hammer.
Accompanying drawing explanation
By reference to the accompanying drawings, and by reference to detailed description below, will more easily there is more complete understanding to the utility model and more easily understand its adjoint advantage and feature, wherein:
Fig. 1 is structural representation of the present utility model;
[in figure reference character]:
1-high-pressure discharge adjustment cap, 2-high pressure spring, 3-piston, 4-throttling is bored, 5-valve gap, 6-valve body, 7-main valve inlet, 8-Main valve outlet, 9-main valve events control hole, 11-supported spring, the import of 12-control valve, 13-control valve exports, 14-connecting tube, 15-air compressing chamber.
Embodiment
Make content of the present utility model clearly understandable, below in conjunction with Figure of description, content of the present utility model is described further.Certain the utility model is not limited to this specific embodiment, and the general replacement known by those skilled in the art is also encompassed in protection domain of the present utility model.Secondly, the utility model detailed statement that utilized schematic diagram to carry out, when describing the utility model example in detail, for convenience of explanation, schematic diagram, should in this, as the restriction to the utility model type not according to general ratio partial enlargement.
It should be noted that, in following embodiment, utilize the structural representation of Fig. 1 to carry out detailed statement to by a kind of piston type of the utility model water hammer Decompression valves.When describing mode of execution of the present utility model in detail, for convenience of explanation, schematic diagram is not according to general scale and carried out partial enlargement and omitted process, therefore, should avoid in this, as to restriction of the present utility model.
As shown in Figure 1, the utility model provides a kind of piston type water hammer Decompression valves, comprise main valve and pilot valve, pilot valve is bored 4 by high-pressure discharge adjustment cap 1, high pressure spring 2, piston 3 and throttling and is formed, high pressure spring 2 is between high-pressure discharge adjustment cap 1 and piston 3, throttling cone 4 is positioned at below piston 3, main valve comprises valve gap 5 and valve body 6, valve body 6 is provided with main valve inlet 7, Main valve outlet 8 and main valve events control hole 9, piston 3 is provided with in valve body 6, be provided with throttling cone 4 below piston 3, throttling cone 4 is provided with supported spring 11.
Concrete, in the present embodiment, pilot valve is provided with control valve import 12 and control valve outlet 13, control valve import 12 is connected with main valve inlet 7 by connecting tube 14, control valve outlet 13 is two, one is connected with Main valve outlet 8 by connecting tube 14, and another is connected with main valve events control hole 9 by connecting tube 14.
In addition, piston 3 and throttling cone 4 move up and down and form air compressing chamber 15 in valve body 6.
When superpressure operating mode occurs, piston 3 moves down, the appearance negative pressure in air compressing chamber 15, and moves down increase with piston 3, is regulated reach air pressure balance by pressure release speed.Because negative pressure is from small to large in the generation in air conditioning chamber 15, so main valve reaches open effect soon.
When superpressure operating mode disappears, piston 3 moves up, the appearance malleation in air compressing chamber 15, and moves increase with on piston 3, is regulated reach air pressure balance by pressure release speed.Because malleation is from small to large in the generation in air conditioning chamber 15, so main valve reaches Slow Close effect.
In sum, by adopting high pressure spring 2 and supporting that spring 11 is respectively as the pressure restraining element of pilot valve and main valve, makes Decompression valves not easily loss in the course of the work, also while greatly improving Decompression valves safety reliability, reduce cost of production, use more convenient; Decompression valves is in pressure leak process in addition, and due to the effect in air compressing chamber 15 in main valve, main valve can play the action effect of fast-opening slowly-closing, thus prevents the generation of secondary water hammer.
Claims (3)
1. a piston type water hammer Decompression valves, comprise main valve and pilot valve, it is characterized in that, described pilot valve is bored by high-pressure discharge adjustment cap, high pressure spring, piston and throttling and is formed, described high pressure spring is between high-pressure discharge adjustment cap and piston, described throttling cone is positioned at below piston, described main valve comprises valve gap and valve body, described valve body is provided with main valve inlet, Main valve outlet and main valve events control hole, piston is provided with in described valve body, be provided with throttling cone below described piston, described throttling cone is provided with supported spring.
2. piston type water hammer Decompression valves as claimed in claim 1, it is characterized in that, described pilot valve is provided with control valve import and control valve outlet, described control valve import is connected with main valve inlet by connecting tube, described control valve outlet is two, one is connected with Main valve outlet by connecting tube, and another is connected with main valve events control hole by connecting tube.
3. piston type water hammer Decompression valves as claimed in claim 1, is characterized in that, described piston and throttling cone move up and down and form air compressing chamber in valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622307.5U CN204961943U (en) | 2015-08-12 | 2015-08-12 | Piston water hammer relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622307.5U CN204961943U (en) | 2015-08-12 | 2015-08-12 | Piston water hammer relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961943U true CN204961943U (en) | 2016-01-13 |
Family
ID=55057012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520622307.5U Expired - Fee Related CN204961943U (en) | 2015-08-12 | 2015-08-12 | Piston water hammer relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439133A (en) * | 2015-08-12 | 2017-02-22 | 湘潭中基电站辅机制造有限公司 | Piston type water hammer pressure release valve |
-
2015
- 2015-08-12 CN CN201520622307.5U patent/CN204961943U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439133A (en) * | 2015-08-12 | 2017-02-22 | 湘潭中基电站辅机制造有限公司 | Piston type water hammer pressure release valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20200812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |