CN202349300U - Overflow valve - Google Patents
Overflow valve Download PDFInfo
- Publication number
- CN202349300U CN202349300U CN2011203658293U CN201120365829U CN202349300U CN 202349300 U CN202349300 U CN 202349300U CN 2011203658293 U CN2011203658293 U CN 2011203658293U CN 201120365829 U CN201120365829 U CN 201120365829U CN 202349300 U CN202349300 U CN 202349300U
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- China
- Prior art keywords
- spring
- spool
- water
- valve
- pressure
- 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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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000013461 design Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 15
- 238000012856 packing Methods 0.000 claims description 3
- 241000153246 Anteros Species 0.000 claims description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model relates to an overflow valve, which has rated operating pressure of 12MPa, is designed to be a straight cylinder type double-shaft pilot piston structure, is in an opened state at ordinary time to discharge surplus water in the pipeline, and is closed and sealed by pushing a valve core with hydraulic pressure at the water inflow side when a system ejects, belongs to the field of firefighting and water supply and drainage, and is used for solving the problems that the routine overflow valve is low in rated pressure, poor in vibration resistance and small in circulation caliber, and solving the potential problems of the pipeline of water accumulation, water overflow, blackening, odorous phenomenon, and deterioration, and frost cracking. The overflow valve is composed of a valve body, an end cover, a main spring, a valve core, a main seal ring, a spring base, a washer, a screw, an O-shaped seal ring and an auxiliary spring, wherein the valve core is kept at an open position by the action of the spring at ordinary time, so as to meet the application requirements of horizontal and sag installation and vibration occasions; the valve core has a front and rear double-shaft guiding structure and a large disc section valve core structure, and is rapid to close; and the main seal ring adopts a protection design of high cone type enclosing and high pressure limiting, so as to meet high-pressure seal and solve the problem of water shock and water hammer damage. The overflow valve has wide application prospects in fire extinguishing systems of metallurgy, power, book file library, storage, ship, museum, data center, bank, garage, subway and the like.
Description
Technical field
The utility model relates to a kind of fire protection sector that is used for, and is straight cylinder type twin shaft guide piston structure, often opens the ponding of the long-time slow seepage of surplus water in the removal system pipe network or valve at ordinary times; When fire extinguishing was spurted in system, fire water supply promoted spool and makes it to close sealing, and rated working pressure reaches the relief valve of 12MPa, belongs to fire-fighting, plumbing field.
Background technique
The relief valve of the type is few at present, in practical applications, can only manually regularly get rid of surplus water or the long-time ponding of seepage slowly of valve in the pipe network, often occurs the pipeline freezing accident in the winter time.The system of relief valve is not set, and at the surplus aqueous metamorphism of pipe network lowest part, black smelly, the ponding of the long-time slow seepage of valve causes zone of protection mistake water outlet, and sophisticated electronics, archives, spray/baking finish production line etc. are made a very bad impression.
Present relief valve, rated working pressure is 1.6MPa, 2.5MPa, 4.2MPa, and rated working pressure is low, and flow is less than normal, only can saggingly install and use.
The relief valve material is a cast steel, copper at present, adopts plane sealing, hard sealing.Can not level install, the play phenomenon is arranged at vibration occasion black box; Hard seal pattern has impurity promptly to cause seepage slightly in the pipeline, adaptability, reliability are not good.
Summary of the invention
For the high pressure sealing seepage that solves relief valve, low discharge capacity, problem such as poor for applicability.The utility model provides a kind of relief valve, is straight cylinder type twin shaft guide piston structure, and spool is equipped with the primary seal circle, and antero posterior axis is with spring respectively; Make valve be in opening state by spring at ordinary times, get rid of ducted surplus water, when fire extinguishing was spurted in system, fire water supply promoted spool and makes it to close sealing; Can carry clear water, seawater at 12MPa pressure, under 18MPa pressure, keep sealing; Carry the back to open automatically and drained Yu Shui, can under vertical, level, oblique various orientation, install and use, also can satisfy the application requirements of vibration occasion; The primary seal circle adopts the high tapered of preparatory tensioner nesting type assembling, uniqueness to go along with sb. to guard him and the design of high pressure limit bit architecture, and runner is progressively dwindled by tapering when closing, and has reduced the impact of water hammer when closing, the fault of having avoided high-pressure water flow that the primary seal circle is gone out; It is stressed with the end cap conflict to close when sealing spool outer ring, has limited stressed, the amount of deformation of primary seal circle; Spool adopts twin shaft guiding big disk cross section structure, On/Off flexible operation.Relief valve is made up of valve body (1), spool (2), end cap (5), main spring (4), auxiliary spring (10), spring seat (9), O RunddichtringO (8), primary seal circle (3), packing ring (7), screw (6).
The utility model is achieved in that the primary seal circle is nested in the seal spool groove, receives outside preset tension effect; Seal spool groove outer ring is high tapered going along with sb. to guard him, and high pressure is spacing, spurts under the operating mode that the cascading water of valve high pressure progressively closes in system, and runner is progressively dwindled by tapering, thereby has effectively reduced the impact of water hammer infringement; High tapered building enclosure make the primary seal circle indeformable, do not blown out and lost efficacy by high-pressure water flow; The spacing design of high pressure has reached relief valve when closing high pressure sealing, primary seal circle limit compression 0.35mm, and it is stressed to be conflicted by spool outer ring and end cap afterwards, has reduced the amount of deformation of primary seal circle, the working life of having improved valve.Make a novel 18MPa hydraulic pressure intensity and a 13.2MPa pressurized seal performance of having reached; Spool is the big disk cross section structure, when system stops to spurt, backs down sluicing rapidly; Spool is provided with pressure spring, can both be held open the sluicing state at vertical, level, oblique various states; Primary seal circle and end cap dome arc design for linear sealing, and surface of contact is few, and sealing is reliable, and be anti-aging, non-deformability is strong, reaches long working life and reliability.
The beneficial effect of the utility model is: realized 18MPa hydraulic pressure intensity and 13.2MPa pressurized seal performance; Spool is embedded with pressure spring; Make valve can both be held open the sluicing state, can drain the surplus water in the pipe network in real time, prevent black smelly rotten at vertical, level, oblique various states; Avoid freezing winter the damage pipeline, the ponding that has solved the long-time slow seepage of valve simultaneously causes the problem of zone of protection mistake water outlet; The primary seal circle is nested in the seal spool groove, receives outside preset tension effect; Go along with sb. to guard him for height is tapered seal spool groove outer ring, high pressure is spacing; Spurt under the operating mode that the cascading water of valve high pressure progressively closes in system, runner is progressively dwindled by tapering, thereby has effectively reduced the impact of water hammer infringement; High tapered building enclosure make the primary seal circle indeformable, do not blown out and lost efficacy by high-pressure water flow; The spacing design of high pressure has reached relief valve when closing high pressure sealing, and it is stressed to be conflicted by spool outer ring and end cap after the compression of primary seal circle limit trace, has reduced the stressed and amount of deformation of primary seal circle, in the working life of having improved valve, has filled up domestic and international blank.Drain the surplus water of pipe network lowest part in real time, prevent rotten, bursting by freezing in the winter pipeline of ponding, avoided the ponding of the long-time slow seepage of valve to cause the accident of zone of protection water outlet, improved Security, the reliability of system.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the sectional drawing of the utility model.
Fig. 2 is the outline drawing of the utility model.
Fig. 3 is the spool sectional drawing of the utility model.
Fig. 4 is the end cap sectional drawing of the utility model.
Embodiment
Relief valve is made up of valve body (1), end cap (5), spool (2), primary seal circle (3), packing ring (7), screw (6), main spring (4), auxiliary spring (10), spring seat (9), O RunddichtringO (8).Valve body is threaded with end cap, by the sealing of O RunddichtringO, and keeps concentricity.
The valve body import is processed with " ten " font and supports and the water conservancy diversion cross section structure, and export processing has the straight thread that connects with end cap, and O RunddichtringO seal groove; Spool: spool adopts big disk cross section twin shaft guide structure, and twin shaft is with main spring, auxiliary spring respectively, and the main spring side shaft is fastening by screw, has designed unique high tapered going along with sb. to guard him and the high pressure limit bit architecture, primary seal ring recess, main spring groove.
The end bracket enclosed face is the plush copper circular arc, adopts " ten " font identical with valve body to support and the water conservancy diversion cross section structure.
The technological scheme that its technical problem of the utility model solution is taked is:
Press core component one spool of this high-pressure overflow valve of fluid mechanics three dimensional design, spool adopts the twin shaft guide structure, and the preparatory tension primary seal of setting-in circle is provided with pressure spring, spool is in opens the sluicing state; If high tapered going along with sb. to guard him and high pressure position limitation protection structure begins to spurt under the operating mode that the cascading water of valve high pressure progressively closes in system, runner is progressively dwindled by tapering, thereby has effectively reduced the impact of water hammer infringement; High tapered building enclosure is not blown out the primary seal circle and lost efficacy by high-pressure water flow; The spacing design of high pressure has reached relief valve when closing high pressure sealing, and the primary seal circle is conflicted stressed after the trace compression by outer ring and end cap, has reduced the stressed and amount of deformation of primary seal circle; Relief valve adopts the Taper Pipe pitch thread to be connected with pipeline and seals easy construction.
The spool twin shaft is through respectively in the center hole of valve body/end cap, and twin shaft is with main spring and auxiliary spring before and after the spool, and the main spring side shaft is fastening by screw, adopts high tapered going along with sb. to guard him and the spacing design of high pressure; The primary seal snare receives preparatory tension in the seal spool groove; In embedding of main spring and the spool groove, a headgear is on the spring seat shaft shoulder, and the axle back cushion circle in the main spring, screw are fastened on end cap " ten " word and support, and keep the pretightening force of main spring; Promote spool and remain in the sluicing state of opening; When system spurted, high-pressure medium promoted the mangetic core assembly pressure spring, the primary seal circle is contacted with end cap plush copper circular arc make valve be in sealing state.After system spurted and finishes, mangetic core assembly was backed down by main spring, recovered to open the sluicing state.
1) material: valve body, end cap, screw, main spring, auxiliary spring, spring seat adopt stainless steel, and spool is an aluminium bronze; Primary seal circle and O RunddichtringO are nitrile butadiene rubber.
2) rated working pressure: 12MPa.
3) water pressure test for strength: 18MPa.
4) pressurized seal test: 13.2MPa.
5) closing pressure: 0.3MPa.
6) Applicable media: clear water, seawater.
7) range of working pressure: 1.2MPa-12MPa.
8) mounting type: upright, level.
9) interface: R
22 ".
10) overflow discharge capacity: 260L/min.
11) be applicable to height, middle pressure fine spray extinguisher, high service device; Be with a wide range of applications in engineerings such as metallurgy, electric power, book and file pipe, storage, boats and ships, museum, records center, bank, hangar, subways.
Claims (3)
1. a relief valve is characterized in that straight cylinder type twin shaft guide piston structure, and spool is equipped with the primary seal circle, and antero posterior axis is with spring respectively; Make valve be in opening state by spring at ordinary times, get rid of ducted surplus water, when fire extinguishing was spurted in system, fire water supply promoted spool and makes it to close sealing; Relief valve by: valve body (1), spool (2), main spring (4), primary seal circle (3), O RunddichtringO (8), auxiliary spring (10), spring seat (9), packing ring (7), end cap (5), screw (6) are formed.
2. relief valve according to claim 1 is characterized in that spool adopts twin shaft front and back guide structure, and twin shaft is with main spring, auxiliary spring respectively, and the main spring side shaft is fastening by screw, adopts high tapered going along with sb. to guard him and the spacing design of high pressure.
3. relief valve according to claim 1 is characterized in that primary seal circle cutting ferrule in the seal spool groove, receives preparatory tension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203658293U CN202349300U (en) | 2011-09-28 | 2011-09-28 | Overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203658293U CN202349300U (en) | 2011-09-28 | 2011-09-28 | Overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202349300U true CN202349300U (en) | 2012-07-25 |
Family
ID=46538307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203658293U Expired - Lifetime CN202349300U (en) | 2011-09-28 | 2011-09-28 | Overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202349300U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807477A (en) * | 2014-02-09 | 2014-05-21 | 山东省水利科学研究院 | Pipeline irrigation pressure adjustable and slowly opening and closing type automatic drainage valve |
| CN108331950A (en) * | 2018-02-09 | 2018-07-27 | 中国第汽车股份有限公司 | Common rail system flow restriction valve core limiting device |
| CN108426117A (en) * | 2018-04-16 | 2018-08-21 | 中北大学 | A kind of water-hammer arrester auxiliary device |
| CN113090839A (en) * | 2021-03-30 | 2021-07-09 | 陈蕾蕾 | Three-way joint |
| CN113090842A (en) * | 2021-03-30 | 2021-07-09 | 陈蕾蕾 | Four-way valve capable of automatically cutting off when pipe is taken off |
-
2011
- 2011-09-28 CN CN2011203658293U patent/CN202349300U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807477A (en) * | 2014-02-09 | 2014-05-21 | 山东省水利科学研究院 | Pipeline irrigation pressure adjustable and slowly opening and closing type automatic drainage valve |
| CN103807477B (en) * | 2014-02-09 | 2015-11-11 | 山东省水利科学研究院 | Pipeline irrigation adjustable-pressure is slow opens and closes automatic drainage valve |
| CN108331950A (en) * | 2018-02-09 | 2018-07-27 | 中国第汽车股份有限公司 | Common rail system flow restriction valve core limiting device |
| CN108426117A (en) * | 2018-04-16 | 2018-08-21 | 中北大学 | A kind of water-hammer arrester auxiliary device |
| CN113090839A (en) * | 2021-03-30 | 2021-07-09 | 陈蕾蕾 | Three-way joint |
| CN113090842A (en) * | 2021-03-30 | 2021-07-09 | 陈蕾蕾 | Four-way valve capable of automatically cutting off when pipe is taken off |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhu Qi Document name: Notification to Pay the Fees |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI NANXIAO FIRE PROTECTION ENGINEERING EQUIP Free format text: FORMER OWNER: SHANGHAI LIANGXIAO FIRE EQUIPMENT CO., LTD. Effective date: 20140616 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201612 SONGJIANG, SHANGHAI TO: 201600 JIADING, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140616 Address after: 118, room 201600, 3 west side, 3131 Jinsha River Road, Shanghai, Jiading District Patentee after: Shanghai Nanxiao Fire Protection Engineering Equipment Co., Ltd. Address before: 201612 1108, three North Road, new temple, Xinqiao Town, Shanghai, Songjiang District Patentee before: Shanghai Liangxiao Fire Fighting Equipment Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhu Qi Document name: Notification of Passing Examination on Formalities |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20190327 Granted publication date: 20120725 |
|
| PP01 | Preservation of patent right | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210928 Granted publication date: 20120725 |
|
| PD01 | Discharge of preservation of patent |