CN202660033U - Water hammer release valve capable of being opened quickly and closed slowly - Google Patents
Water hammer release valve capable of being opened quickly and closed slowly Download PDFInfo
- Publication number
- CN202660033U CN202660033U CN 201220060362 CN201220060362U CN202660033U CN 202660033 U CN202660033 U CN 202660033U CN 201220060362 CN201220060362 CN 201220060362 CN 201220060362 U CN201220060362 U CN 201220060362U CN 202660033 U CN202660033 U CN 202660033U
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- China
- Prior art keywords
- valve
- sleeve
- water hammer
- fast
- pipeline
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a water hammer release valve capable of being opened quickly and closed slowly. The water hammer release valve capable of being opened quickly and closed slowly comprises a valve body, wherein the valve body is in connection with a valve cap, a valve base is arranged on the internal flow channel of the valve body, the valve body is provided with an open-closed valve clack capable of being sealed with the valve base, and the valve clack is in connection with a valve rod. The water hammer release valve capable of being opened quickly and closed slowly further comprises a sleeved barrel with a port on one end, wherein the sleeved barrel penetrates the valve cap and is in fixed connection with the valve cap, the valve rod movably extends into the sleeved barrel, a sealed mode is adopted between the side wall of the valve rod and the inner hole wall of the sleeved barrel, the sleeved barrel wall is in connection with a driving medium pipeline, the driving medium pipeline is communicated with an inner hole of the sleeved barrel, the other end of the pipeline is in connection with a linking container, and the pipeline is connected with a one-way throttle valve. The water hammer release valve can be opened quickly to eliminate water hammer and can simultaneously be closed slowly, and therefore secondary water hammer caused by a quick close of the valve is avoided. Besides, the water hammer release valve capable of being opened quickly and closed slowly is simple and compact in structure.
Description
Technical field
The utility model belongs to the pipeline valve technology, is specifically related to a kind of pressure security bleeder valve of protecting webmaster.
Background technique
The pipeline bleeder valve is a kind of valve of protecting the pressure security of webmaster.When the pressure of pipeline exceeded setting pressure, this valve opening gave vent to hydraulic pressure, the protection pipeline.The bleeder valve of present domestic manufacturing all is that direct-acting type changes up pass type or leading type bleeder valve soon.Namely after pipeline had the water hammer high pressure wave to arrive, direct-acting type changes up the pass type soon can open (but the leading type opening time is relatively slow) by induction pipe pressure fast, but after pipeline pressure returned to below the setup pressure value, bleeder valve can quick closedown.The fast opening and closing of above-mentioned valve causes pipe network to form the secondary instantaneous high pressure; This secondary instantaneous high pressure forms owing to the bleeder valve closing velocity is too fast, and pipe network is also had certain destruction.
Summary of the invention
The purpose of this utility model is to provide a kind of bleeder valve, the quick unlatching release when it can realize pressure protect, and when closing, slowly action is closed, thereby overcomes the defective of above-mentioned existing bleeder valve.
The scheme of technology of the present utility model is: fast-opening slowly-closing water hammer bleeder valve, it comprises valve body, connect valve gap on the valve body, the valve body inner flow passage is provided with valve seat, be provided with in the valve body can with the flap of the switching of valve base sealing, flap is connected with valve rod, it also comprise pass valve gap and with valve gap between the sleeve of the end opening that is fixedly connected with, valve rod movably stretches in the sleeve, seals between valve rod sidewall and the sleeve inner hole wall; Connect the driven medium pipeline on the sleeve wall, the driven medium pipeline communicates with the sleeve endoporus; The other end of pipeline connects UNICOM's container, is connected with one-way throttle valve on the pipeline.
Described sleeve endoporus is connected with axle sleeve, contacts pilot seal between axle sleeve and the valve rod.
Be provided with preloading spring between flap and the valve gap inwall.
The lid inwall is connected with guide sleeve, is arranged with pressing plate in the guide sleeve, and preloading spring is located between flap and the pressing plate; Pressing plate contacts with pretightening force controlling mechanism.
Described pretightening force controlling mechanism comprises the adjusting screw rod that passes valve gap, and adjusting screw rod is connected with adjusting nut, and the adjusting screw rod end contacts with pressing plate.
Limit on a sleeve step and valve gap simultaneously contacts spacingly, establishes draw-in groove on the sleeve wall, establishes snap ring in the draw-in groove, and snap ring contacts spacing with the valve gap another side.
Sleeve passes pressing plate, and preloading spring is enclosed within sleeve outer wall.
Above-mentioned one-way throttle valve is to realize the damping throttling when valve closing, and during valve opening, one-way valve is opened.
Above-mentioned driven medium is hydraulic oil, and container is fuel tank.
The working principle of this valve is: (can be the pressure of preloading spring when upstream pressure is higher than the security settings pressure of water hammer bleeder valve; also can be by driven medium and container setting); after the safety pressure value that spring is set; hydraulic type fast-opening slowly-closing system does not hinder the opening process of spool basically; the assurance valve can be opened fast and carry out pressure release, eliminates the safety of water hammer protection pipe network.
Be lower than the safety pressure value of water hammer bleeder valve setting when upstream pressure after, hydraulic type fast-opening slowly-closing system can control the closing velocity of spool, close slowly by valve by the flow of oil circuit control, and closing velocity is adjustable.
The water hammer bleeder valve can be opened the elimination water hammer fast, and slow Slow Close has simultaneously avoided producing owing to valve closing is too fast the secondary water hammer.It is simple and compact for structure.
Description of drawings
Fig. 1 water hammer bleeder valve structural representation.
Embodiment
As shown in Figure 1, connect valve gap 2 on the valve body 1, valve body 1 inner flow passage is provided with valve seat 2, be provided with in the valve body can with the flap 3 of the switching of valve base sealing, said structure is existing routine techniques.Flap 3 is connected with valve rod 14, and the sleeve 11 of offering hole 15, one end openings on the valve gap 2 passes hole 15 and the with it sealing on the valve gap 2, and sealing configuration can be the sealing configuration of seal ring or seal ring.Limit on the sleeve 11 step 17 and valve gap simultaneously contacts spacingly, establishes draw-in groove 18 on the sleeve wall, establishes snap ring 19 in the draw-in groove 18, and snap ring contacts spacing with the valve gap another side.
The opening of sleeve 11 is in valve body 1, and the open section of the endoporus 16 of sleeve 11 is connected with axle sleeve 5.
Pretightening force controlling mechanism comprises the adjusting screw rod 10 that passes valve gap 8, and adjusting screw rod 10 is connected with adjusting nut 9, and adjusting screw rod 10 ends contact with pressing plate 6.Adjusting nut 9 is fixed on the valve gap 8.
In the water hammer bleeder valve valve spring is housed, by adjusting screw rod can setting spring elastic force, the value of elastic correspondence of this spring the force value (safety pressure setting value) before the valve.
Oil pressure fast-opening slowly-closing system is connect etc. by fuel tank, one-way throttle valve 12 and pipe and forms.When hydraulic oil during from sleeve 11 interior inflow fuel tank, one-way throttle valve 12 runner spaciousnesses are without hindrance.When hydraulic oil was flowed in the sleeve 11 by fuel tank, one-way throttle valve 12 played a part current limliting, and hydraulic oil can only slowly flow in the sleeve, thus flap 3 and valve rod 14 in closing process, can only move slowly, until close.
The structure that the safety pressure setting value is set by driven medium and container can be: prefastening force spring is located between valve rod 14 end faces and sleeve endoporus 16 end faces of sleeve 11; Perhaps connect one-way pressure valve at pipeline 21.
Claims (7)
1. fast-opening slowly-closing water hammer bleeder valve, it comprises valve body, connect valve gap on the valve body, the valve body inner flow passage is provided with valve seat, be provided with in the valve body can with the flap of the switching of valve base sealing, flap is connected with valve rod, it is characterized in that it also comprise pass valve gap and with valve gap between the sleeve of the end opening that is fixedly connected with, valve rod movably stretches in the sleeve, seals between valve rod sidewall and the sleeve inner hole wall; Connect the driven medium pipeline on the sleeve wall, the driven medium pipeline communicates with the sleeve endoporus; The other end of pipeline connects UNICOM's container, is connected with one-way throttle valve on the pipeline.
2. fast-opening slowly-closing water hammer bleeder valve as claimed in claim 1 is characterized in that described sleeve endoporus is connected with axle sleeve, contacts pilot seal between axle sleeve and the valve rod.
3. fast-opening slowly-closing water hammer bleeder valve as claimed in claim 1 is characterized in that being provided with preloading spring between flap and the valve gap inwall.
4. fast-opening slowly-closing water hammer bleeder valve as claimed in claim 3 is characterized in that the valve gap inwall is connected with guide sleeve, is arranged with pressing plate in the guide sleeve, and preloading spring is located between flap and the pressing plate; Pressing plate contacts with pretightening force controlling mechanism.
5. fast-opening slowly-closing water hammer bleeder valve as claimed in claim 4 is characterized in that described pretightening force controlling mechanism comprises the adjusting screw rod that passes valve gap, and adjusting screw rod is connected with adjusting nut, and the adjusting screw rod end contacts with pressing plate.
6. fast-opening slowly-closing water hammer bleeder valve as claimed in claim 1, it is characterized in that limiting on the sleeve step and valve gap simultaneously contact spacing, establish draw-in groove on the sleeve wall, establish snap ring in the draw-in groove, and snap ring contacts spacing with the valve gap another side.
7. fast-opening slowly-closing water hammer bleeder valve as claimed in claim 4 is characterized in that sleeve passes pressing plate, and preloading spring is enclosed within sleeve outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220060362 CN202660033U (en) | 2012-02-23 | 2012-02-23 | Water hammer release valve capable of being opened quickly and closed slowly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220060362 CN202660033U (en) | 2012-02-23 | 2012-02-23 | Water hammer release valve capable of being opened quickly and closed slowly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202660033U true CN202660033U (en) | 2013-01-09 |
Family
ID=47454942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220060362 Expired - Lifetime CN202660033U (en) | 2012-02-23 | 2012-02-23 | Water hammer release valve capable of being opened quickly and closed slowly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202660033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797881A (en) * | 2012-02-23 | 2012-11-28 | 武汉大禹阀门股份有限公司 | Quick-opening slow-closing water hammer relief valve |
-
2012
- 2012-02-23 CN CN 201220060362 patent/CN202660033U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797881A (en) * | 2012-02-23 | 2012-11-28 | 武汉大禹阀门股份有限公司 | Quick-opening slow-closing water hammer relief 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: 20130109 |
|
| CX01 | Expiry of patent term |