CN201196339Y - Valve rod balancing mechanism of gas pressure regulator - Google Patents
Valve rod balancing mechanism of gas pressure regulator Download PDFInfo
- Publication number
- CN201196339Y CN201196339Y CNU200820035530XU CN200820035530U CN201196339Y CN 201196339 Y CN201196339 Y CN 201196339Y CN U200820035530X U CNU200820035530X U CN U200820035530XU CN 200820035530 U CN200820035530 U CN 200820035530U CN 201196339 Y CN201196339 Y CN 201196339Y
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- valve
- valve rod
- pressure regulator
- gas pressure
- elastic equilibrium
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Abstract
The utility model relates to a valve rod equalizing mechanism for a gas regulator, which comprises a valve rod, a valve pad and an elastic equalizing film, wherein the valve rod is hermetically and fixedly connected with the inner edge of the elastic equalizing film; the outer edge of the elastic equalizing film is hermetically and fixedly connected with the inner wall of a channel of the valve rod; a fixed sealing block is sleeved on the valve rod on the front of the elastic equalizing film; a central through hole of the valve rod is in sealed movable connection with the fixed sealing block; the rear side face of the fixed sealing block is hermetically and fixedly connected with the outer edge of the elastic equalizing film; the fixed sealing block and the elastic equalizing film form an equalizing air pressure cavity in the channel of the valve rod; and a ventilation inlet on the rear of the valve rod is communicated with a ventilation outlet which is arranged between the elastic equalizing film and the fixed sealing block on the valve rod. When the valve rod equalizing mechanism for the gas regulator is used, if the air pressure of an outlet of the regulator is fluctuated, the air pressure in the equalizing air pressure cavity is equal to the air pressure of a valve port because the equalizing air pressure cavity is communicated with the valve port, so that the position of the valve pad is not influenced, and the pressure regulation precision and the reliability of the gas regulator are improved.
Description
Technical field
The utility model relates to a kind of balance mechanism of gas pressure regulator, governor.
Background technique
At present, gas pressure regulator, governor is widely used on the city gas conveyance conduit.
Chinese patent literature notification number CN2432411 discloses a kind of gas pressure regulator, governor, and the valve body of pressure governor adopts the header structure, in establish valve seat and valve port; Wherein, main voltage regulator adopts the lever form to connect the horizontal type structure of valve port with horizontal valve rod.
Above-mentioned the deficiencies in the prior art part is: see Fig. 2, when the air pressure generation fluctuation that the outlet (being the outlet 45 of valve body 2) of gas pressure regulator, governor is located, the air pressure at the valve port 2-1 place of valve body 2 produces corresponding fluctuation, the above-mentioned valve pad 23 that is used for regulating valve stem 18 rear ends is subject to the influence of this air pressure fluctuation, thereby the gap length between this valve pad 23 and the described valve port 2-1 is fluctuateed, thereby influenced the pressure regulation precision and the pressure regulation reliability of gas pressure regulator, governor, influenced the safe handling of combustion gas.
The model utility content
Technical problem to be solved in the utility model provides the balance mechanism of the gas pressure regulator, governor of a kind of pressure regulation precision that improves pressure governor and reliability.
For solving the problems of the technologies described above, the utility model provides a kind of balance mechanism of gas pressure regulator, governor, comprising: the valve rod in the main pressure regulator valve of being located at gas pressure regulator, governor and the valve stem passage of the joint of valve body, be located at valve rod rear end and the valve pad relative with the valve port of valve body; It is characterized in that: be with an elastic equilibrium film on the valve rod, and the inward flange of valve rod and elastic equilibrium film is sealedly and fixedly connected; The outward edge of elastic equilibrium film is fixedlyed connected with the inner wall sealing of described valve stem passage; Be with the fixing seal piece in the front side of described elastic equilibrium film on the valve rod, and the center through hole of valve rod and fixing seal piece mutually hermetic seal flexibly connect; The outward edge of fixing seal piece and elastic equilibrium film is sealedly and fixedly connected; In described valve stem passage, constitute the equilibrium air pressure chamber between fixing seal piece and the elastic equilibrium film; Be provided with gas pipeline between the valve port of equilibrium air pressure chamber and described valve body.
The rear end of described valve rod is provided with the ventilation inlet, is being provided with aeration vent on the valve rod between described elastic equilibrium film and fixing seal piece, and the ventilation inlet connects with aeration vent and constitutes described gas pipeline.
The forward and backward both sides of elastic equilibrium film are with supporting disk and valve seat cushion respectively on valve rod, and supporting disk is fixed on the valve rod; The inward flange of elastic equilibrium film is located between the front-end face of supporting disk and valve seat cushion, and the rear end of valve seat cushion and the rear end of valve rod are fixedly linked; Thereby the inward flange of valve rod and elastic equilibrium film is sealedly and fixedly connected.
The inwall of described valve stem passage is fixed with tubular sleeve; The inner circle wall of sleeve is provided with annular boss, and the outward edge of described elastic equilibrium film places between the rear end and the annular boss in the sleeve of described fixing seal piece, so that the outward edge of elastic equilibrium film is fixedlyed connected with the inner wall sealing of described valve stem passage.
The utlity model has positive effect: in the balance mechanism of (1) gas pressure regulator, governor of the present utility model, in described valve stem passage, the inward flange of elastic equilibrium film is fixedlyed connected with valve rod, and the outward edge of the trailing flank of fixing seal piece and elastic equilibrium film is sealedly and fixedly connected; Constitute the equilibrium air pressure chamber between fixing seal piece and the elastic equilibrium film, this equilibrium air pressure chamber communicates with the valve port place of valve body by ventilation inlet on the valve rod and aeration vent; Thereby in use, if fluctuation takes place in the air pressure in the outlet port of gas pressure regulator, governor and when causing the air pressure at the valve port place of valve body to produce corresponding fluctuation, because described equilibrium air pressure chamber communicates with described valve port place, air pressure in the equilibrium air pressure chamber is equated with the air pressure at described valve port place at any time, cause the pressure of valve pad trailing flank and elastic equilibrium film leading flank to balance each other, thereby make the position of valve pad not be subjected to the influence of air pressure fluctuation, thereby improved the pressure regulation precision and the reliability of gas pressure regulator, governor.(2) in the utility model, the inward flange of elastic equilibrium film is located between the front-end face that is fixed in valve rod upper support dish and valve seat cushion, and the rear end of valve seat cushion and the rear end of valve rod are fixedly linked, thereby valve rod is fixedlyed connected with the elastic equilibrium film phonograph seal, this structure is simpler, good airproof performance.(3) in the utility model, the outward edge of elastic equilibrium film places between the rear end and the annular boss in the sleeve of described fixing seal piece, thereby the outward edge of elastic equilibrium film is fixedlyed connected with the inner wall sealing of described valve stem passage, and this structure is simpler, good airproof performance.(4) in the utility model, the rear end of described fixing seal piece is provided with groove, is used to guarantee the space in described equilibrium air pressure chamber; The front end of valve seat cushion has column-shaped projection, and this column-shaped projection is relative with groove on the described fixing seal piece, guarantees the sphere of activities of valve rod.(5) in the utility model, the front end of valve rod is provided with transition block, be used for being connected with screw drive on being vertically set on pallet and main epithelium by the lever of main pressure regulator valve, described fixing seal piece front end is provided with the Returnning spring that links to each other with valve rod, is used for the transient equiliblium of regulating valve stem.(6) in the utility model, carry out the power transmission, can prevent the factors such as shake of lever, to the influence of valve rod, to guarantee the pressure regulation precision and the reliability of pressure governor by transition block.(7) in the utility model, the inside edge of elastic equilibrium film is provided with seal ring, and the edge of elastic equilibrium film is provided with projection, is used to improve sealing.
Description of drawings
Fig. 1 be gas pressure regulator, governor of the present utility model and the structural representation of balance mechanism.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 be another gas pressure regulator, governor and the structural representation of balance mechanism.
Fig. 4 is the zoomed-in view of B portion among Fig. 3.
Each label is respectively among the figure:
The 1--main pressure regulator valve, 2--valve body, 2-1--valve port, 3--safety cut-off valve, 4--master's epithelium, the 5--pallet, the built-in valve that diffuses of 7--, 8--equilibrium air pressure chamber, 10--screw rod, 11--aeration vent, 12--seal ring, the 13--inlet of ventilating, 14--lever, 15--supporting disk, the 16--transition block, 17--Returnning spring, 18--valve rod, 19--fixing seal piece, 20--elastic equilibrium film, 21--sleeve, 22--valve seat cushion, 23--valve pad, the 24--screw, 41--import, 42--PRESSURE PIPE, 45--outlet.
Embodiment
(embodiment 1)
See Fig. 2-4, the gas pressure regulator, governor of present embodiment comprises: valve body 2, be located at valve body 2 valve port 2-1 one side main pressure regulator valve 1 and be located at the safety cut-off valve 3 of valve port 2-1 opposite side.
Described main pressure regulator valve 1 comprises: upper shell and lower shell body are provided with main epithelium 4 between upper shell and the lower shell body; Main epithelium 4 is provided with pallet 5, and pallet 5 upper ends are provided with pressure exerting arrangement and the built-in valve 7 that diffuses.Be provided with lever 14 with the lower end of the pallet 5 vertical screw rods that link to each other 10, the main pressure regulator valve 1 of gas pressure regulator, governor has valve stem passage with the joint of valve body 2, is provided with valve rod 18 in the valve stem passage; Lever 14 transition block 16 are in transmission connection with valve rod 18, with the valve pad 22 of regulating valve stem 18 rear ends and the gap length of the valve port 2-1 of valve body 2, thereby the gas of the higher pressure of import 41 input of valve body 2 is converted to from exporting the gases than low pressure of 45 outputs, thereby realizes voltage regulation function.
The balance mechanism of the gas pressure regulator, governor of present embodiment comprises: valve rod 18, the valve pad 23 that is oppositely arranged with described valve port 2-1, with the sleeve 21 of the tubulose that is sealedly and fixedly connected of described valve stem passage, be enclosed within elastic equilibrium film 20 on the valve rod 18, be placed in fixing seal piece 19 on the valve rod 18 by center through hole; Fixing seal piece 19 is located at the front side of described elastic equilibrium film 20, and is fixed in the described valve stem passage, and the outward edge of the trailing flank of fixing seal piece 19 and elastic equilibrium film 20 is sealedly and fixedly connected.
Described elastic equilibrium film 20 has rounded outer edge and the center through hole that is used to be enclosed within on the described valve rod 18, and the edge of this center through hole is the inward flange of elastic equilibrium film 20.
The inner circle wall of sleeve 21 is provided with annular boss, the outward edge of described elastic equilibrium film 20 places between the rear end and the annular boss in the sleeve 21 of described fixing seal piece 19, thereby the outward edge of elastic equilibrium film 20 is fixedlyed connected with the inner wall sealing of described valve stem passage.
The forward and backward both sides of elastic equilibrium film 20 are with supporting disk 15 and valve seat cushion 22 respectively on valve rod 18, and supporting disk 15 is located on the valve rod 18 by the limiting stopper of its front side end; The inward flange of elastic equilibrium film 20 is located between the front-end face of supporting disk 15 and valve seat cushion 22, so that the inward flange of valve rod 18 and elastic equilibrium film 20 is sealedly and fixedly connected, the rear end of the rear end of valve seat cushion 22 and valve rod 18 is fixedly linked.
From the above, in described valve stem passage, constitute equilibrium air pressure chamber 8 between fixing seal piece 19 and the elastic equilibrium film 20.The rear end of described valve rod 18 is provided with ventilation inlet 13, is being provided with aeration vent 11 on the valve rod 18 between described elastic equilibrium film 20 and fixing seal piece 19, and ventilation inlet 13 connects in valve rod 18 with aeration vent 11.In other embodiments, between the valve port 2-1 of equilibrium air pressure chamber 8 and described valve body 2 breathing pipe is set.
See Fig. 2, in use, when if fluctuation takes place and causes the corresponding fluctuation of the air pressure generation at valve port 2-1 place of valve body 2 in the air pressure that the outlet (being the outlet 45 of valve body 2) of gas pressure regulator, governor is located, because described equilibrium air pressure chamber 8 communicates with described valve port 2-1 place, air pressure in the equilibrium air pressure chamber 8 is equated substantially with the air pressure at described valve port 2-1 place at any time, cause the pressure of valve pad 23 trailing flanks and elastic equilibrium film 20 leading flanks to balance each other substantially, thereby the position that makes valve pad 23 is not subjected to the influence of air pressure fluctuation basically, be that gap length between valve pad 23 and the described valve port 2-1 is constant basically, thereby improved the pressure regulation precision and the reliability of gas pressure regulator, governor.
The ear end face of described fixing seal piece 19 is provided with groove, is used to guarantee the space in described equilibrium air pressure chamber, and fixing seal piece 19 is placed on the valve rod 18 by the center through hole in this groove; The front end of described valve seat cushion 22 has column-shaped projection, and this column-shaped projection is relative with groove on the described fixing seal piece, guarantees the sphere of activities of valve rod.
Described valve seat cushion 22 links to each other with the rear end of valve rod 18 by screw 24, make the column-shaped projection of valve seat cushion 22 front ends be pressed on the inward flange of the elastic equilibrium film 20 on the supporting disk 15 simultaneously, guaranteed the reliability that the inward flange of valve rod 18 and elastic equilibrium film 20 is sealedly and fixedly connected.
Have through hole 24-1 on the screw 24, this through hole 24-1 communicates with described ventilation inlet 13.
The inside edge of described elastic equilibrium film 20 is provided with seal ring, and the edge of elastic equilibrium film 20 is provided with projection, has guaranteed the sealing of the inside and outside edge of elastic equilibrium film 20.
Be provided with the Returnning spring 17 that links to each other with valve rod 18 at described fixing seal piece 19 front ends.
The center through hole internal fixation of described fixing seal piece 19 is provided with seal ring 12, so that the inward flange hermetic seal of valve rod 18 and fixing seal piece 19 flexibly connects.
(embodiment 2)
On embodiment 1 basis, the balance mechanism of the gas pressure regulator, governor of present embodiment has following difference, see Fig. 1, the front end of the valve rod 18 of present embodiment directly is in transmission connection by lever in the main pressure regulator valve 1 14 and the screw rod 10 that is vertically set on pallet 5 and the main epithelium 4.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (10)
1. the balance mechanism of a gas pressure regulator, governor comprises: the valve rod (18) in the main pressure regulator valve (1) of being located at gas pressure regulator, governor and the valve stem passage of the joint of valve body (2), be located at valve rod (18) rear end and the valve pad (23) relative with the valve port (2-1) of valve body (2); It is characterized in that: be with an elastic equilibrium film (20) on the valve rod (18), and the inward flange of valve rod (18) and elastic equilibrium film (20) is sealedly and fixedly connected; The outward edge of elastic equilibrium film (20) is fixedlyed connected with the inner wall sealing of described valve stem passage; Valve rod (18) is gone up and to be with fixing seal piece (19) in the front side of described elastic equilibrium film (20), and the center through hole hermetic seal flexible connection mutually of valve rod (18) and fixing seal piece (19); Fixing seal piece (19) is sealedly and fixedly connected with the outward edge of elastic equilibrium film (20); In described valve stem passage, constitute equilibrium air pressure chamber (8) between fixing seal piece (19) and the elastic equilibrium film (20); Be provided with gas pipeline between the valve port (2-1) of equilibrium air pressure chamber (8) and described valve body (2).
2. the balance mechanism of a kind of gas pressure regulator, governor according to claim 1, it is characterized in that: the rear end of described valve rod (18) is provided with ventilation inlet (13), upward be provided with aeration vent (11) between described elastic equilibrium film (20) and fixing seal piece (19) at valve rod (18), ventilation inlet (13) connects with aeration vent (11) and constitutes described gas pipeline.
3. the balance mechanism of a kind of gas pressure regulator, governor according to claim 1 and 2, it is characterized in that: the forward and backward both sides of going up elastic equilibrium film (20) at valve rod (18) are with supporting disk (15) and valve seat cushion (22) respectively, and supporting disk (15) is fixed on the valve rod (18); The inward flange of elastic equilibrium film (20) is located between the front-end face of supporting disk (15) and valve seat cushion (22), and the rear end of the rear end of valve seat cushion (22) and valve rod (18) is fixedly linked; Thereby valve rod (18) is sealedly and fixedly connected with the inward flange of elastic equilibrium film (20).
4. the balance mechanism of a kind of gas pressure regulator, governor according to claim 3, it is characterized in that: the inwall of described valve stem passage is fixed with the sleeve of tubulose (21); The inner circle wall of sleeve (21) is provided with annular boss, the outward edge of described elastic equilibrium film (20) places between the rear end and the annular boss in the sleeve (21) of described fixing seal piece (19), so that the outward edge of elastic equilibrium film (20) is fixedlyed connected with the inner wall sealing of described valve stem passage.
5. the balance mechanism of a kind of gas pressure regulator, governor according to claim 4, it is characterized in that: the ear end face of described fixing seal piece (19) is provided with groove; The front end of described valve seat cushion (22) has column-shaped projection.
6. the balance mechanism of a kind of gas pressure regulator, governor according to claim 5 is characterized in that: be provided with the Returnning spring (17) that links to each other with valve rod (18) at described fixing seal piece (19) front end.
7. the balance mechanism of a kind of gas pressure regulator, governor according to claim 5 is characterized in that: described valve seat cushion (22) links to each other with the rear end of valve rod (18) by screw (24); Have through hole (24-1) on the screw (24), this through hole (24-1) and described ventilation enter the mouth (13) communicate.
8. the balance mechanism of a kind of gas pressure regulator, governor according to claim 5, it is characterized in that: the inside edge of described elastic equilibrium film (20) is provided with the seal ring that is enclosed within on the valve rod (18), and the edge of elastic equilibrium film (20) is provided with projection.
9. the balance mechanism of a kind of gas pressure regulator, governor according to claim 5, it is characterized in that: described fixing seal piece (19) is placed on the valve rod (18) by the center through hole of being located in its groove, and the center through hole internal fixation of fixing seal piece (19) is provided with seal ring.
10. the balance mechanism of a kind of gas pressure regulator, governor according to claim 6, it is characterized in that: the front end of described valve rod (18) is provided with transition block (16), is used for being in transmission connection with the screw rod (10) that is vertically set on pallet (5) and the main epithelium (4) by the lever (14) of main pressure regulator valve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820035530XU CN201196339Y (en) | 2008-05-07 | 2008-05-07 | Valve rod balancing mechanism of gas pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820035530XU CN201196339Y (en) | 2008-05-07 | 2008-05-07 | Valve rod balancing mechanism of gas pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196339Y true CN201196339Y (en) | 2009-02-18 |
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ID=40415976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820035530XU Expired - Fee Related CN201196339Y (en) | 2008-05-07 | 2008-05-07 | Valve rod balancing mechanism of gas pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201196339Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101266022B (en) * | 2008-05-07 | 2012-02-22 | 常州市科信燃气设备有限公司 | Gas pressure regulator balance mechanism |
| CN102691800A (en) * | 2011-03-24 | 2012-09-26 | 费希尔调压器(上海)有限公司 | Fluid adjustment device with offset control element |
| CN106402445A (en) * | 2016-11-18 | 2017-02-15 | 乐山倍创机械制造有限公司 | Main pressure adjusting device applied to fuel gas pressure adjusting mechanism |
| CN109185516A (en) * | 2018-11-08 | 2019-01-11 | 上海飞奥燃气设备有限公司 | A kind of lever gas pressure regulator, governor |
-
2008
- 2008-05-07 CN CNU200820035530XU patent/CN201196339Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101266022B (en) * | 2008-05-07 | 2012-02-22 | 常州市科信燃气设备有限公司 | Gas pressure regulator balance mechanism |
| CN102691800A (en) * | 2011-03-24 | 2012-09-26 | 费希尔调压器(上海)有限公司 | Fluid adjustment device with offset control element |
| CN106402445A (en) * | 2016-11-18 | 2017-02-15 | 乐山倍创机械制造有限公司 | Main pressure adjusting device applied to fuel gas pressure adjusting mechanism |
| CN109185516A (en) * | 2018-11-08 | 2019-01-11 | 上海飞奥燃气设备有限公司 | A kind of lever gas pressure regulator, governor |
| CN109185516B (en) * | 2018-11-08 | 2023-09-22 | 上海飞奥燃气设备有限公司 | Lever type gas pressure regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tianning carving village streets Sheng Cun Jiang Jia Tang 213018 Jiangsu city of Changzhou province No. 128 Patentee after: Jiangsu Ke Xin gas-fired equipment Co., Ltd Address before: Tianning carving village streets Sheng Cun Jiang Jia Tang 213018 Jiangsu city of Changzhou province No. 128 Patentee before: Changzhou City Coshin Gas Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20160507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |