CN205013779U - Adjustable gravity type plunger relief valve - Google Patents
Adjustable gravity type plunger relief valve Download PDFInfo
- Publication number
- CN205013779U CN205013779U CN201520729042.9U CN201520729042U CN205013779U CN 205013779 U CN205013779 U CN 205013779U CN 201520729042 U CN201520729042 U CN 201520729042U CN 205013779 U CN205013779 U CN 205013779U
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- CN
- China
- Prior art keywords
- plunger
- briquetting
- receiving cavity
- valve body
- plunger body
- 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 - Fee Related
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Abstract
The utility model discloses an adjustable gravity type plunger relief valve, including the valve body and the plunger body, be provided with the media channel who supplies the fluid medium circulation in the valve body to reaching the plunger that sets up along media channel vertical cross and holding the chamber, the plunger body sets up in the plunger holds the chamber, and the plunger is personally experienced sth. Part of the body and is provided with the metering orifice that supplies the fluid medium circulation, be provided with at least one briquetting on the valve body at plunger body top, briquetting and plunger body fixed connection, lower part that the plunger holds the chamber is greater than the big footpath section of the plunger body for the diameter, and the media channel that the valve body was provided with intercommunication fluid medium link and the plunger of big footpath section hold the pore of being connected in chamber, and the plunger is personally experienced sth. Part of the body bottom end and is provided with annular cavity to and be arranged in holding the breach passageway that chamber fluid medium introduced annular cavity with the plunger of big footpath section. The utility model discloses a relief valve, the mode that adopts gravity has been avoided adopting the spring and the easy problem that became invalid of elasticity, simple structure, safe and reliable as the pressure source.
Description
Technical field
The utility model belongs to safety valve technical field, is specifically related to a kind of adjustable gravity plunger safety valve.
Background technique
Safety valve is a kind of valve being in normally off, when the pressure medium in equipment or pipeline raises and exceedes specified value, exceedes the Special valve of specified value by preventing pressure medium in pipeline or equipment to discharge medium outside system.The threshold values of traditional safety valve is controlled by open-shut device and spring, by spring compression open-shut device, as long as when pressure medium is lower than spring force, open-shut device is in closed condition all the time, and only have when pressure medium exceedes the elastic force of spring, open-shut device is opened, release pressure, completes pressure release.But spring contacts with medium and air for a long time under stress, easily cause burn into corrosion, fatigue ruption, crystalline phase change etc., thus make spring failure, cause the serious consequence that can not open the safety-valve.
Model utility content
The purpose of this utility model is: for traditional safety valve Problems existing, provides a kind of adjustable gravity plunger safety valve, and adopt the briquetting with adjustable gravity as the pressure source of plunger body, Security is higher.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of adjustable gravity plunger safety valve, comprise valve body and plunger body, in valve body, be provided with the medium channel for flowing medium circulation, and along the plunger receiving cavity that medium channel square crossing is arranged, plunger body is arranged in plunger receiving cavity, and plunger body is provided with the metering orifice for flowing medium circulation; The valve body at plunger body top is provided with at least one briquetting, briquetting is fixedly connected with plunger body; The bottom of plunger receiving cavity is the large footpath section that diameter is greater than plunger body, valve body is provided with the connection duct of the medium channel of communication of fluid medium connecting end and the plunger receiving cavity of large footpath section, plunger body bottom end face is provided with annular cavity, and for flowing medium in the plunger receiving cavity of large footpath section being introduced the scalloped channels of annular cavity.
Preferably, described briquetting is provided with three, is fixedly connected with between briquetting with plunger body by bolt and nut part.
Preferably, described briquetting adopts foundary weight.
Preferably, described body base also arranges to be blocked in and is communicated with letting out of plunger receiving cavity and valve body outside and lets out slag screw in cinder hole.
Preferably, the connecting end surface of briquetting and valve body is provided with polytetrafluoroethylsealed sealed packing ring.
Preferably, the inwall of described plunger receiving cavity is provided with for plunger body guiding and plunger body is limited in metering orifice with medium channel conducting and with the plunger guide positive stop key of upper/lower positions, and plunger body is provided with the keyway of correspondence.
Owing to have employed technique scheme, the beneficial effects of the utility model are:
1, excessively briquetting is set on plunger body top, for plunger body provides pressure source, owing to adopting gravity type, avoid Direct spring loaded safety valve, spring contacts with medium and air under stress and causes making spring failure because of factors such as burn into corrosion, fatigue ruption, crystalline phase changes for a long time, causes the severe safety consequence that can not open the safety-valve.
2, fluid medium pressure is once exceed gravity threshold values, and the upwardly power of plunger body can instantaneous unexpected increase, plunger body is moved up rapidly, the metering orifice of plunger body is communicated with medium channel, release pressure.
3, bottom plunger body be annular cavity, lifting surface area increases sharply as circular area from annulus area, in non-linear increase, makes that emptying release pressure is more sensitive, rapid, quick, safety.
4, can also adjust safety pressure threshold values by the weight or quantity increasing and decreasing briquetting, adjustment is simple and convenient.
Accompanying drawing explanation
Fig. 1 is safety valve sectional view of the present utility model.
Fig. 2 is the A-A sectional view of plunger body in Fig. 1.
Mark in figure: 1-bolt and nut part, 2-briquetting, 3-plunger guide positive stop key, 4-keyway, 5-valve body, 6-metering orifice, 7-plunger body, 8-plunger receiving cavity, 9-lets out slag screw, and 10-connects duct, 11-medium channel, 12-scalloped channels, 13-annular cavity, the polytetrafluoroethylsealed sealed packing ring of 14-.
Embodiment
With reference to Fig. 1, Fig. 2, a kind of adjustable gravity plunger safety valve, comprise valve body 5 and plunger body 7, the medium channel 11 for flowing medium circulation is provided with in valve body 5, and along the plunger receiving cavity 8 that medium channel 11 square crossing is arranged, plunger body 7 is arranged in plunger receiving cavity 8, plunger body 7 is provided with the metering orifice 6 for flowing medium circulation; The valve body 5 at plunger body 7 top is provided with at least one briquetting 2, briquetting 2 is fixedly connected with plunger body 7; The bottom of plunger receiving cavity 8 is the large footpath section that diameter is greater than plunger body 7, valve body 5 is provided with the medium channel 11 of communication of fluid medium connecting end and the connection duct 10 of the plunger receiving cavity 8 of large footpath section, plunger body 7 bottom end face is provided with annular cavity 13, and for flowing medium in the plunger receiving cavity 8 of large footpath section being introduced the scalloped channels 12 of annular cavity 13.
The briquetting 2 of the present embodiment is provided with three, and the threshold values that the quantity of certain briquetting 2 can set according to actual needs is determined, briquetting 2 adopts foundary weight, and foundary weight is the blocks that metallic iron material is made, and is fixedly connected with between briquetting 2 with plunger body 7 by bolt and nut part 1.
Also arranging bottom valve body 5 to be blocked in and be communicated with letting out of plunger receiving cavity 8 and valve body 5 outside and let out slag screw 9 in cinder hole, letting out slag screw 9 by unloading, can dregs in easy cleaning plunger receiving cavity 8.
Briquetting 2 is provided with polytetrafluoroethylsealed sealed packing ring 14 with the connecting end surface of valve body 5, can guarantee the sealing inside and outside valve body 5.
In order to prevent the pressure of flowing medium excessive, and by complete for plunger body 7 push-out ram provided receiving cavity 8, the inwall of plunger receiving cavity 8 is provided with and leads and be limited in by plunger body 7 metering orifice 6 for plunger body 7 with medium channel 11 conducting and with the plunger guide positive stop key 3 of upper/lower positions, and plunger body 7 is provided with corresponding keyway 4.When plunger body 7 be up to metering orifice 6 be communicated with medium channel 11 time, realize pressure release, at this moment keyway 4 just runs to plunger guide positive stop key 3 and is in the position of keyway 4 end face and realizes spacing, prevents plunger body 7 from continuing up.
Adjustable gravity plunger safety valve of the present utility model, the safe threshold pressure of plunger body 7 is determined by the weight of plunger body 7 and the weight sum of briquetting 2, be in the flowing medium of medium channel 11 pressure end, the large footpath section of plunger receiving cavity 8 is entered into through connecting duct 10, and flow in annular cavity 13 through scalloped channels 12, plunger body 7 thrust be subject to upwards is the product of pressure medium and annular cavity 13 area, when being less than the weight sum of the weight of plunger body 7 and briquetting 2 to lifting force, plunger body 7 is in the bottom of plunger receiving cavity 8, metering orifice 6 and medium channel 11 stagger mutually, and remain on closed condition.
When the pressure of flowing medium raises, when making plunger body 7 be subject to being greater than the weight sum of the weight of plunger body 7 and briquetting 2 to lifting force, plunger body 7 moves upward, metering orifice 6 and medium channel 11 are interconnected, flowing medium release pressure, when earth pressure release to be not enough to promote plunger body 7 up time, plunger body 7 is descending, is returned to original position.
Claims (6)
1. an adjustable gravity plunger safety valve, it is characterized in that, comprise valve body (5) and plunger body (7), the medium channel (11) for flowing medium circulation is provided with in valve body (5), and along the plunger receiving cavity (8) that medium channel (11) square crossing is arranged, plunger body (7) is arranged in plunger receiving cavity (8), and plunger body (7) is provided with the metering orifice (6) for flowing medium circulation; The valve body (5) at plunger body (7) top is provided with at least one briquetting (2), and briquetting (2) is fixedly connected with plunger body (7); The bottom of plunger receiving cavity (8) is the large footpath section that diameter is greater than plunger body (7), valve body (5) is provided with the connection duct (10) of the medium channel (11) of communication of fluid medium connecting end and the plunger receiving cavity (8) of large footpath section, plunger body (7) bottom end face is provided with annular cavity (13), and for flowing medium in the plunger receiving cavity (8) of large footpath section being introduced the scalloped channels (12) of annular cavity (13).
2. adjustable gravity plunger safety valve according to claim 1, it is characterized in that, described briquetting (2) is provided with three, is fixedly connected with between briquetting (2) with plunger body (7) by bolt and nut part (1).
3. adjustable gravity plunger safety valve according to claim 1, is characterized in that, described briquetting (2) adopts foundary weight.
4. adjustable gravity plunger safety valve according to claim 1, it is characterized in that, described valve body (5) bottom also arranges to be blocked in and is communicated with outside the letting out of plunger receiving cavity (8) and valve body (5) and lets out slag screw (9) in cinder hole.
5. adjustable gravity plunger safety valve according to claim 1, is characterized in that, briquetting (2) is provided with polytetrafluoroethylsealed sealed packing ring (14) with the connecting end surface of valve body (5).
6. adjustable gravity plunger safety valve according to claim 1, it is characterized in that, the inwall of described plunger receiving cavity (8) is provided with for plunger body (7) guiding and plunger body (7) is limited in metering orifice (6) with medium channel (11) conducting and with the plunger guide positive stop key (3) of upper/lower positions, and plunger body (7) is provided with corresponding keyway (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729042.9U CN205013779U (en) | 2015-09-17 | 2015-09-17 | Adjustable gravity type plunger relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729042.9U CN205013779U (en) | 2015-09-17 | 2015-09-17 | Adjustable gravity type plunger relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013779U true CN205013779U (en) | 2016-02-03 |
Family
ID=55212383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520729042.9U Expired - Fee Related CN205013779U (en) | 2015-09-17 | 2015-09-17 | Adjustable gravity type plunger relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205013779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110945278A (en) * | 2017-05-26 | 2020-03-31 | 卢森堡专利公司 | Compact gas cylinder valve with residual pressure function |
-
2015
- 2015-09-17 CN CN201520729042.9U patent/CN205013779U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110945278A (en) * | 2017-05-26 | 2020-03-31 | 卢森堡专利公司 | Compact gas cylinder valve with residual pressure function |
| CN110945278B (en) * | 2017-05-26 | 2021-09-28 | 卢森堡专利公司 | Compact gas cylinder valve with residual pressure function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170421 Address after: 610306 Sichuan City, Qingbaijiang City, the town of the Dragon King Village cleaning group of the five group of Patentee after: Chengdu Caster Precision Casting Co.,Ltd. Address before: 610199 Sichuan Province, Longquanyi District, Longquanyi, East Road, No. 2, building 1, unit 6, building 10, No. 1020 Patentee before: Pay for |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20210917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |