CN2498423Y - Security valve against leakage of gas pipeline - Google Patents
Security valve against leakage of gas pipeline Download PDFInfo
- Publication number
- CN2498423Y CN2498423Y CN 01233581 CN01233581U CN2498423Y CN 2498423 Y CN2498423 Y CN 2498423Y CN 01233581 CN01233581 CN 01233581 CN 01233581 U CN01233581 U CN 01233581U CN 2498423 Y CN2498423 Y CN 2498423Y
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- China
- Prior art keywords
- valve
- valve rod
- ring
- plate
- spherical
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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 - Lifetime
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Abstract
Disclosed is a pipeline gas leakage safety valve which comprises a valve body, a retaining ring, a filter mesh, a flexible seal ring, a spherical valve, a joint nut, a control valve rod of the spherical valve, a hollow screw with external screw thread, a handle, a countersunk head screw and a flexible coverslip. The utility model is characterized in that: an orbicular step is arranged at one end of the through-hole of the spherical valve; a fixed valve frame is arranged on the orbicular step; the valve rod and a valve deck plate are positioned on the valve frame by an outer clip reed of a spring. As the utility model has the function of self protection, in the case of gas leakage due to the break of the pipeline, the valve can cut the gas channel of the pipeline automatically, and the self-production and safety control of the gas pipeline can be realized.
Description
One. technical field:
The utility model relates to a kind of pipeline gas protector for leakage, is the valve that has safety installations that a kind of pipeline gas distributing system uses specifically.
Two. background technique:
At present, the pipeline gas distributing system removes the combustion gas voltage regulating station or the force feed station is provided with cut-off valve, the combustion gas forward and backward hand stop valve that all uses of registering one's residence, in case thing that meets accident such as system suffer the bump of external force and breakage, will cause gas leakage or since all can not in time cut off source of the gas when the quality problems of system such as quick-fried table etc. will initiation fire, disaster accidents such as blast, poisoning.
In order to address the above problem, the inventor proposes three kinds of gas leakage protectors, at first is safety valve before a kind of gas meter, is pipe end safety valve, Chinese patent besides: ZL00234322.3 " combustion gas security personnel flexible pipe " secondly.Through the segmentation series safety control above-mentioned gas leakage protector effectively solves source of the gas in gas transmission and distribution system before of facts have proved in the past few years.In order to realize the perfection of present technique product; further investigation experiment in practice; above-mentioned gas leakage protector is further improved; make and itself have manually and automatic dual functions; when the quick-fried table of gas meter or pipeline leaks; no matter pipeline internal air pressure height all can realize blocking automatically the purpose of combustion gas, can ensure that blast tube is unimpeded simultaneously when normal distribution.
Three. the model utility content:
Technical problem to be solved in the utility model is that existing valve is increased automatic function on the basis of existing manual function, and no matter pipeline internal air pressure height all can realize blocking automatically the leakage of combustion gas when gas meter or the quick-fried table of pipeline leak; The utility model provides a kind of pipeline gas to leak Safety valve, and this Safety valve comprises: valve body, back-up ring, filter screen, elastic seal ring, spherical valve, interface nut, spherical valve control valve rod, outside thread hollow screw, handle, sunk screw, elasticity cover plate; It is characterized in that: the end at the spherical valve endoporus is provided with ring-shaped step, and equipped fixed air vavle shelf on ring-shaped step is positioned at the valve rod valve plate on the air valve frame with the wild card reed at assembling valve rod valve plate, spring on the air valve frame; The ring-shaped step that described spherical valve through hole is provided with is a two-stage, assembling air valve frame on step, and the air valve frame is made up of base plate, door font support and valve stem casing; Described valve rod valve plate is made up of valve rod and valve plate, is provided with the groove that the wild card reed is installed on valve rod, valve rod and valve plate build-in one, and assembling form is after the mounting spring valve rod to be inserted in the valve rod trepanning on the valve rod, and the wild card reed is installed on stem groove.
The utlity model has following characteristics and progress:
1. realize conventional manual opening and closing action of gas source by the spherical valve on the handle may command valve body.
2. air valve frame, valve rod valve plate, wild card spring and spring are set in the spherical valve through hole, utilize the working condition of the pressure of combustion gas own, flow, pressure, density under the effect that physical condition changes, to implement miniature power control, when gas leakage, can block source of the gas automatically, can be under any environmental conditions, not disturbed by extraneous factor, can use at any angle, not be subjected to limitation of construction.
3. in valve hole two ends internal thread bottom filter screen is set and prevents that foreign material stop up air flue in the pipeline.
4. the utlity model has the dual function that opens and closes, for the gas pipeline distributing system provides the safe operation condition.
Four. description of drawings:
Fig. 1 is an overall structure partial cutaway schematic of the present utility model;
Fig. 2 is a spherical valve section construction generalized section of the present utility model;
Fig. 3 is a spherical valve section of structure of the present utility model;
Fig. 4 is that air valve frame master of the present utility model looks part sectioned view;
Fig. 5 is the left view of air valve frame of the present utility model;
Fig. 6 is a wild card reed plan view of the present utility model;
Fig. 7 is a valve rod valve plate partial sectional view of the present utility model.
Reference character is: valve body 1, back-up ring 2, filter screen 3, elastic seal ring 4, spherical valve 5, valve rod valve plate 6, wild card reed 7, air valve frame 8, spring 9, interface nut 10, spherical valve control valve rod 11, outside thread hollow screw 12, handle 13, sunk screw 14, elasticity cover plate 15, through hole 501, ring-shaped step 502, ring-shaped step 503, square hole 504, valve rod 601, valve plate 602, groove 603, base plate 801, door font support 802, valve stem casing 803, valve rod trepanning 804.
Five. mode of execution:
Figure of description is an optimal way of the present utility model, describes in detail below in conjunction with accompanying drawing:
Referring to shown in Figure 1, end internal thread position in valve body 1 axial hole is provided with filter screen 3, back-up ring 2, be provided with elastic seal ring 4, spherical valve 5 at the through hole middle part, the other end at through hole is provided with interface nut 10, in interface nut 10 endoporus, be provided with filter screen 3, back-up ring 2, radially be provided with boss in the middle part at valve body 1, there is vertical through hole at the boss center, equipped spherical valve control valve rod 11, elastic seal ring 4 on the through hole, outside thread hollow screw 12 is provided with handle 13, sunk screw 14 and elasticity cover plate 15 on spherical valve control valve rod 11.
Fig. 2 is the gas leakage automatic safety device that the utility model is established at spherical valve 5, this device comprises spherical valve 5, air valve frame 8, valve rod valve plate 6, wild card reed 7, spring 9, air valve frame 8 is fixed on the ring-shaped step 502 of through hole 501 peripheries on the spherical valve 5, on air valve frame 8, be provided with valve rod valve plate 6, spring 9 and wild card reed 7, on valve rod 601, after the mounting spring 9 valve rod 601 is penetrated in the valve rod trepanning 804, equipped wild card reed 7 is positioned at valve rod valve plate 6, spring 9 on the air valve frame 8 thus on stem groove 603; The elastic force of spring 9 equates with the Driving force of normal air feed stream, valve plate 602 is stood alert, when air-flow surmounts control range, spring 9 is out of control, the air-flow that increases promotes valve rod valve plate 6 and moves and 801 applyings of air valve frame base plate, reaches the purpose of blocking source of the gas, ensures that combustion gas is safe in utilization.
Shown in Figure 3 is the concrete structure of spherical valve 5, and spherical valve 5 is provided with through hole 501, is provided with ring-shaped step 502 and 503 at the periphery of through hole 501, is provided with square hole 504 perpendicular to the direction of through hole 501, and spherical valve control valve rod 11 is installed in its square hole.
Fig. 4, shown in Figure 5 be the detailed construction of air valve frame 8, air valve frame 8 comprises base plate 801, door font support 802, valve stem casing 803, valve rod trepanning 804.
Shown in Figure 7 is the structure of valve rod valve plate 6, and valve rod valve plate 6 is made up of valve rod 601 and valve plate 602, and an end of valve rod 601 is mounted on the valve plate 602, and valve rod 601 is provided with the groove 603 that wild card reed 7 is installed.
Working principle of the present utility model is, utilizes the spiral at the utility model two ends to connect locking mechanism valve of the present utility model is connected to air supply source and gas appliance, and handle 13 is parallel with gas channel for opening source of the gas, handle 13 and gas channel 90.Be sealing.
Under normal state, valve rod valve plate 6 is under the effect of spring 9, and valve plate 602 maintains a certain distance the gas conducting with air valve frame base plate 801.
When piping failure leaked, the gas pressure of pipeline reduced, and push valve rod valve plate 6 to front end and be fitted on the air valve frame base plate 801 this moment under the effect than atmospheric pressure of inlet end, and gas channel 501 is blocked.And before pipeline did not keep in repair, under the gas pressure effect of inlet end, this valve rod valve plate was fitted with air valve frame base plate 801 all the time, keeps the intercepted state of passage.
After pipeline maintenance is good, the twisting handle.Under the effect of spring 9, valve plate 602 maintains a certain distance with air valve frame base plate 801, with the gas conducting after the valve rod valve plate 6 releasing external force.
Claims (3)
1. a pipeline gas leaks Safety valve, and this Safety valve comprises: valve body, back-up ring, filter screen, elastic seal ring, spherical valve, interface nut, spherical valve control valve rod, outside thread hollow screw, handle, sunk screw, elasticity cover plate; It is characterized in that: the end at spherical valve through hole (501) is provided with ring-shaped step (502), (503), go up the equipped air valve frame (8) that is fixed with at ring-shaped step (502), upward assembling valve rod valve plate (6), spring (9) are positioned at valve rod valve plate (6) on the air valve frame (8) with wild card reed (7) at air valve frame (8).
2. a kind of pipeline gas according to claim 1 leaks Safety valve, it is characterized in that: the ring-shaped step (502) that spherical valve through hole (501) is provided with, (503) are two-stage, go up assembling air valve frame (8) at ring-shaped step (502), air valve frame (8) is made up of base plate (801), door font support (802) and valve stem casing (803).
3. a kind of pipeline gas according to claim 1 leaks Safety valve, it is characterized in that: described valve rod valve plate (6) is made up of valve rod (601) and valve plate (602), on valve rod (601), be provided with the groove (603) that wild card reed (7) is installed, valve rod (601) and valve plate (602) build-in one, assembling form is after valve rod (601) is gone up mounting spring (9) valve rod (601) to be inserted in the valve rod trepanning (804), goes up in stem groove (603) wild card reed (7) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01233581 CN2498423Y (en) | 2001-08-21 | 2001-08-21 | Security valve against leakage of gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01233581 CN2498423Y (en) | 2001-08-21 | 2001-08-21 | Security valve against leakage of gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2498423Y true CN2498423Y (en) | 2002-07-03 |
Family
ID=33647375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01233581 Expired - Lifetime CN2498423Y (en) | 2001-08-21 | 2001-08-21 | Security valve against leakage of gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2498423Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078866A1 (en) * | 2011-11-30 | 2013-06-06 | Danfoss (Tianjin) Ltd. | Ball valve |
| CN103256415A (en) * | 2013-05-17 | 2013-08-21 | 李仲伦 | Gas ball valve capable of shutting down automatically under overpressure or overcurrent condition |
| CN103322257A (en) * | 2013-07-10 | 2013-09-25 | 玉环燃具实业有限公司 | Protection device of fuel gas valve |
| CN105715819A (en) * | 2014-08-19 | 2016-06-29 | 姚小兵 | Switch for heating furnace |
| CN106499849A (en) * | 2016-12-30 | 2017-03-15 | 玉环县中良铜业有限公司 | A kind of burnt gas leakage security valve |
| CN112240421A (en) * | 2020-10-15 | 2021-01-19 | 成都有智星科技有限公司 | Safety valve device |
| CN112240422A (en) * | 2020-10-15 | 2021-01-19 | 成都有智星科技有限公司 | Opening and closing method of valve |
-
2001
- 2001-08-21 CN CN 01233581 patent/CN2498423Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078866A1 (en) * | 2011-11-30 | 2013-06-06 | Danfoss (Tianjin) Ltd. | Ball valve |
| CN103256415A (en) * | 2013-05-17 | 2013-08-21 | 李仲伦 | Gas ball valve capable of shutting down automatically under overpressure or overcurrent condition |
| CN103256415B (en) * | 2013-05-17 | 2015-04-01 | 李仲伦 | Gas ball valve capable of shutting down automatically under overpressure or overcurrent condition |
| CN103322257A (en) * | 2013-07-10 | 2013-09-25 | 玉环燃具实业有限公司 | Protection device of fuel gas valve |
| CN103322257B (en) * | 2013-07-10 | 2015-05-06 | 玉环燃具实业有限公司 | Protection device of fuel gas valve |
| CN105715819A (en) * | 2014-08-19 | 2016-06-29 | 姚小兵 | Switch for heating furnace |
| CN106499849A (en) * | 2016-12-30 | 2017-03-15 | 玉环县中良铜业有限公司 | A kind of burnt gas leakage security valve |
| CN112240421A (en) * | 2020-10-15 | 2021-01-19 | 成都有智星科技有限公司 | Safety valve device |
| CN112240422A (en) * | 2020-10-15 | 2021-01-19 | 成都有智星科技有限公司 | Opening and closing method of valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110821 Granted publication date: 20020703 |