CN203926946U - A kind of novel slow-closing check valve - Google Patents
A kind of novel slow-closing check valve Download PDFInfo
- Publication number
- CN203926946U CN203926946U CN201420340866.2U CN201420340866U CN203926946U CN 203926946 U CN203926946 U CN 203926946U CN 201420340866 U CN201420340866 U CN 201420340866U CN 203926946 U CN203926946 U CN 203926946U
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- valve
- water
- control room
- main
- flap
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- Expired - Fee Related
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- Check Valves (AREA)
Abstract
A kind of novel slow-closing check valve, formed by main valve, one-way valve, needle type regulating valve and ball valve, main valve includes valve body, flap, valve rod and valve gap, flap upper end and bonnet lower space are main valve control room, between valve body import and main valve control room, be connected with one way stop peturn valve and needle type regulating valve, between valve outlet and main valve control room, be connected with ball valve, the aperture of needle type regulating valve is less than ball valve.This Slow Close against safety check be mainly mounted in tall building water supply system and other water supply systems pump outlet, prevent the intelligent type valve of medium refluence, water hammer and water hammer, this valve has mortor operated valve, check valve and three kinds of functions of water-hammer arrester concurrently, can effectively improve the safety reliability of water system the know-why of slow opening, speed is closed, Slow Close is eliminated water hammer is integrated, prevent the generation of turn on pump water hammer and pump-stopping water hammer.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of check valve.
Background technique
Check valve (having another name called safety check) refers to and relies on medium itself to flow and automatic open and close flap, is used for preventing the valve that medium flows backwards, and claims again check valve, one-way valve, reflux valve and back pressure valve.
In prior art, relevant check valve is preventing that for the pump outlet of tall building water supply system and other water supply systems medium from flowing backwards, but because there is water hammer and water hammer, can affect using effect and the life-span of valve and water pump.
Summary of the invention
In order to overcome the middle defect of prior art, a kind of novel slow-closing check valve of the utility model special design, this Slow Close against safety check be mounted in tall building water supply system and other water supply systems pump outlet, prevent the intelligent type valve of medium refluence, water hammer and water hammer.This valve has mortor operated valve, check valve and three kinds of functions of water-hammer arrester concurrently, can effectively improve the safety reliability of water system and by integrated the know-why of slow opening, speed is closed, Slow Close is eliminated water hammer, prevent the generation of turn on pump water hammer and pump-stopping water hammer, only need operation pump motor to open and close button, valve can be realized keying automatically according to water pump working specification, does not need other device and the energy, maintains easy, and flow is large, the pressure loss is little, unlatching and Slow Close are steady.
A kind of novel slow-closing check valve, formed by main valve, one way stop peturn valve, needle type regulating valve and ball valve, main valve includes valve body, flap, valve rod and valve gap, valve rod one end is provided with valve rod copper sheathing, described valve rod copper sheathing is connected with valve gap, the valve rod the other end is connected with flap, flap upper end and bonnet lower space are main valve control room, valve rod is provided with spring in this position, control room, flap upper end is provided with diaphragm, on diaphragm, be provided with diaphragm platen, flap lower end is provided with seal joint and seal ring; Between valve body import and main valve control room, be connected with one way stop peturn valve and needle type regulating valve, between valve outlet and main valve control room, be connected with ball valve, the aperture of needle type regulating valve is less than ball valve.
the beneficial effects of the utility model aredesign by said structure, in the time that valve feeds water from entrance point, water enters main valve control room by one-way valve, needle type regulating valve, then passes through ball valve draining to downstream.Because needle type regulating valve aperture is less than ball valve aperture, the drainage rate in main valve control room is greater than water intake velocity, therefore control room pressure decreased, and the inlet pressure that acts on main valve disc lower end is opened main valve and is supplied water downstream; In the time that pipeline stops supplying water, if downstream water starts to reflux, a part of recirculation water enters MCR Master Control Room through ball valve, and due to one-way valve effect, recirculation water can not flow out from MCR Master Control Room, causes that MCR Master Control Room boosts gradually, slowly closes main valve.
Install after this valve, when turn on pump examination water, want the forward and backward gate valve of standard-sized sheet main valve, if eliminate water hammer when termination of pumping and have the undesirable situations such as noise, can regulate this valve by the following method: the handwheel that clockwise rotates needle type regulating valve, the press water speed entering in main valve control room slows down, the time lengthening that main valve flap is closed, namely Slow Close time lengthening; Rotate counterclockwise the handwheel of needle type regulating valve, the press water speed entering in main valve control room is accelerated, the time shorten that main valve flap is closed, and namely the Slow Close time shortens.The size of the aperture of valve body upper ball valve also affects the length of this valve Slow Close time, also affect the size of this valve flap opening speed simultaneously, therefore user should be according to the requirement of on-the-spot pipe-line system, needle type valve and ball valve are regulated accordingly, reach good cooperation, make this valve in best working state.
This Slow Close is mainly mounted in the pump outlet of tall building water supply system and other water supply systems against safety check, prevent that medium from flowing backwards, the intelligent type valve of water hammer and water hammer, this valve has mortor operated valve concurrently, three kinds of functions of check valve and water-hammer arrester, can effectively improve the safety reliability of water system, and will delay out, speed is closed, the know-why of Slow Close elimination water hammer is integrated, prevent the generation of turn on pump water hammer and pump-stopping water hammer, only need operation pump motor to open and close button, valve can be realized keying automatically according to water pump working specification, do not need other device and the energy, maintain easy, and flow is large, the pressure loss is little, unlatching and Slow Close are steady.
Brief description of the drawings
Fig. 1 is main valve structure schematic diagram;
Fig. 2 is this model utility linkage structure schematic diagram;
In figure: 1, valve body, 2, seal joint, 3, seal ring, 4, flap, 5, valve rod, 6, diaphragm, 7, diaphragm platen, 9, spring, 12, valve gap, 13, valve rod copper sheathing, 16, needle type regulating valve, 17 ball valves, 18, one way stop peturn valve.
Embodiment
As illustrated in fig. 1 and 2, a kind of novel slow-closing check valve, by main valve, one way stop peturn valve 18, needle type regulating valve 16 and ball valve 17 form, main valve includes valve body 1, flap 4, valve rod 5 and valve gap 12, valve rod 5 one end are provided with valve rod copper sheathing 13, described valve rod copper sheathing 13 is connected with valve gap 12, valve rod 5 the other ends are connected with flap 4, flap 4 upper ends and valve gap 12 lower space are main valve control room, valve rod 5 is provided with spring 9 in this position, control room, flap 4 upper ends are provided with diaphragm 6, on diaphragm 6, be provided with diaphragm platen 7, flap 4 lower ends are provided with seal joint 2 and seal ring 3, between valve body 1 import and main valve control room, be connected with one way stop peturn valve 18 and needle type regulating valve 16, between valve body 1 outlet and main valve control room, be connected with ball valve 17, the aperture of needle type regulating valve 16 is less than ball valve 17.
the beneficial effects of the utility model aredesign by said structure, in the time that valve feeds water from entrance point, water enters main valve control room by one way stop peturn valve 18, needle type regulating valve 16, then passes through ball valve 17 drainings to downstream.Because needle type regulating valve 16 apertures are less than ball valve 17 apertures, the drainage rate in main valve control room is greater than water intake velocity, therefore control room pressure decreased, and the inlet pressure that acts on main valve disc lower end is opened main valve and is supplied water downstream; In the time that pipeline stops supplying water, if downstream water starts to reflux, a part of recirculation water enters MCR Master Control Room through ball valve, and because one way stop peturn valve 18 acts on, recirculation water can not flow out from MCR Master Control Room, causes that MCR Master Control Room boosts gradually, slowly closes main valve.
Install after this valve, when turn on pump examination water, want the forward and backward gate valve of standard-sized sheet main valve, if eliminate water hammer when termination of pumping and have the undesirable situations such as noise, can regulate this valve by the following method: the handwheel that clockwise rotates needle type regulating valve 16, the press water speed entering in main valve control room slows down, the time lengthening that main valve flap 4 is closed, namely Slow Close time lengthening; Rotate counterclockwise the handwheel of needle type regulating valve 16, the press water speed entering in main valve control room is accelerated, the time shorten that main valve flap 4 is closed, and namely the Slow Close time shortens.The size of the aperture of valve body 1 upper ball valve 17 also affects the length of this valve Slow Close time, also affect the size of these valve flap 4 opening speeds simultaneously, therefore user should be according to the requirement of on-the-spot pipe-line system, to needle type regulating valve 16 and ball valve 17, both regulate accordingly, reach good cooperation, make this valve in best working state.
This Slow Close is mainly mounted in the pump outlet of tall building water supply system and other water supply systems against safety check, prevent that medium from flowing backwards, the intelligent type valve of water hammer and water hammer, this valve has mortor operated valve concurrently, three kinds of functions of check valve and water-hammer arrester, can effectively improve the safety reliability of water system, and will delay out, speed is closed, the know-why of Slow Close elimination water hammer is integrated, prevent the generation of turn on pump water hammer and pump-stopping water hammer, only need operation pump motor to open and close button, valve can be realized keying automatically according to water pump working specification, do not need other device and the energy, maintain easy, and flow is large, the pressure loss is little, unlatching and Slow Close are steady.
Claims (1)
1. a novel slow-closing check valve, by main valve, one way stop peturn valve (18), needle type regulating valve (16) and ball valve (17) composition, main valve includes valve body (1), flap (4), valve rod (5) and valve gap (12), it is characterized in that: valve rod (5) one end is provided with valve rod copper sheathing (13), described valve rod copper sheathing (13) is connected with valve gap (12), valve rod (5) the other end is connected with flap (4), flap (4) upper end and valve gap (12) lower space are main valve control room, valve rod (5) is provided with spring (9) in this position, control room, flap (4) upper end is provided with diaphragm (6), on diaphragm (6), be provided with diaphragm platen (7), flap (4) lower end is provided with seal joint (2) and seal ring (3), between valve body (1) import and main valve control room, be connected with one way stop peturn valve (18) and needle type regulating valve (16), between valve body (1) outlet and main valve control room, be connected with ball valve (17), the aperture of needle type regulating valve (16) is less than ball valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340866.2U CN203926946U (en) | 2014-06-25 | 2014-06-25 | A kind of novel slow-closing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340866.2U CN203926946U (en) | 2014-06-25 | 2014-06-25 | A kind of novel slow-closing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926946U true CN203926946U (en) | 2014-11-05 |
Family
ID=51822757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420340866.2U Expired - Fee Related CN203926946U (en) | 2014-06-25 | 2014-06-25 | A kind of novel slow-closing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926946U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989199A (en) * | 2017-05-17 | 2017-07-28 | 杭州滨冠节能科技有限公司 | Flow control valve |
| CN107504232A (en) * | 2017-09-21 | 2017-12-22 | 安徽荣达阀门有限公司 | A kind of novel slow-closing check-valves |
-
2014
- 2014-06-25 CN CN201420340866.2U patent/CN203926946U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989199A (en) * | 2017-05-17 | 2017-07-28 | 杭州滨冠节能科技有限公司 | Flow control valve |
| CN107504232A (en) * | 2017-09-21 | 2017-12-22 | 安徽荣达阀门有限公司 | A kind of novel slow-closing check-valves |
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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: 20141105 Termination date: 20150625 |
|
| EXPY | Termination of patent right or utility model |