CN201844083U - Pressure regulator with function of automatic cutout upon excess pressure - Google Patents
Pressure regulator with function of automatic cutout upon excess pressure Download PDFInfo
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- CN201844083U CN201844083U CN2010205958160U CN201020595816U CN201844083U CN 201844083 U CN201844083 U CN 201844083U CN 2010205958160 U CN2010205958160 U CN 2010205958160U CN 201020595816 U CN201020595816 U CN 201020595816U CN 201844083 U CN201844083 U CN 201844083U
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Abstract
The utility model discloses a pressure regulator with the function of automatic cutout upon excess pressure, and belongs to the technical field of gas transport and distribution equipment manufacture. The pressure regulator has the advantages that the structure is simple and the resetting operation is very convenient after cutout. The pressure regulator comprises a pressure regulating device and a cutout device, wherein the pressure regulating device comprises a cam supporting a cutout valve seat component; the cutout device comprises a square frame and a diaphragm shaft with one end connected with a cutout diaphragm component; a camshaft is mounted inside the square frame; the cam is mounted on the camshaft outside the square frame; a lock mechanism and a locking piece are mounted inside the square frame; the locking piece is matched with the lock mechanism and mounted on the camshaft; and the other end of the diaphragm shaft is connected with the lock mechanism.
Description
Technical field
The utility model relates to a kind of superpressure and cuts off pressure governor automatically, belongs to transmission ﹠ distribution and send gas-fired equipment manufacturing technology field.
Background technique
In recent years, high speed development along with Chinese national economy, the convection cell transmission ﹠ distribution send the requirement of equipment more and more higher, particularly along with the high speed development of China's natural gas industry and gas usefulness gas, transmission ﹠ distribution to gas transmission and distribution feed technique field send equipment to have relatively high expectations, and the safe of its equipment asked higher.We know: it is that the storage of a collection, transmission ﹠ distribution, peak regulation pressure regulation and security facilities are the systems engineering of one that transmission ﹠ distribution are sent gas ductwork.And keep the key of network security operation: the one, can in time accurately regulate and control the pressure of delivery of fuel gas, and can with pressure stability remain in the allowed band of setting; The 2nd, requirement has the protective function of excess pressure cutout.Witness in order to reach above-mentioned, the measure that existing most of gas companies adopt has two kinds: a kind of is to send in transmission ﹠ distribution to install the safety protection function that pressure regulator valve and superpressure stop valve are realized peak regulation pressure regulation and excess pressure cutout on the pipeline respectively additional; Another kind is to send on the pipeline in transmission ﹠ distribution a kind of " the excess pressure cutout pressure governor " that automatic Regulation and two functions of excess pressure cutout are combined as a whole that was once proposed by the inventor is installed, and the patent No. is ZL200820223426.3.Obviously, use a kind of excess pressure cutout pressure governor that collects automatic Regulation and excess pressure cutout two functions as one in back, than the pressure regulator valve and the cut-off valve of a kind of structure before using make things convenient for manyly, much advanced, and also have certain effect to preventing " misoperation ".
This collection automatic Regulation and excess pressure cutout two functions are the excess pressure cutout regulator of one, constitute by regulator and shut-off means, regulator comprises lower cover, valve body, the pressuring adjusting valve base assembly, valve rod, valve port, the cut-off valve holder assembly, cut off spring, following membrane cover, the homophony diaphragm, last membrane cover, the outlet pressure Regulation spring, adjustable lever, regulate tube, cam and pressure regulation signal tube, shut-off means comprises square frame, the diaphragm axle, cut off lower cover, cut off loam cake, cut off diaphragm unit, cut off Regulation spring, cut off the Regulation spring seat, capping, camshaft, shutoff signal pipe and positioning ball, the lock shaft steel ball, the locking bar steel ball, pallet, spring, Returnning spring and spacing axle sleeve.Its working principle is, when fluctuating in the allowed band that the distribution pressure in the pipe network is being set, import in the pressure regulator membrane chamber that constitutes by last membrane cover and following membrane cover by the pressure regulation signal tube source of the gas that will fluctuate, and act on the homophony diaphragm, regulate the distance of pressuring adjusting valve base assembly and valve port again by valve rod, reach the effect of peak regulation pressure regulation; When superpressure appears in distribution pressure, the superpressure source of the gas is imported in the cut-out film chamber that constitutes by cut-out lower cover and cut-out loam cake by the shutoff signal pipe, and act on the cut-out diaphragm unit, move axially along the diaphragm axle by cutting off diaphragm promotion locking bar steel ball pallet, because moving axially of pallet, the locking bar steel ball can slip in the interior macroporous cavity of pallet and make the diaphragm axle lose locking, at this moment Returnning spring will promote spacing axle sleeve and and then move vertically, and pass the position that positioning ball departs from the lock shaft steel ball, the lock shaft steel ball lose stop and glide make camshaft lose the locking and rotate, at this moment, cut off spring to lose the supporting of cam and promote the cut-off valve holder assembly and move down thereby source of the gas is closed in the valve port sealing, reach the purpose of cut-out.From top structure and working principle as can be known, the structure of existing excess pressure cutout pressure governor is very complicated, especially a part of structure of the realization function of automatically cutting off of cut-off valve is all the more so, simultaneously, after realizing that source of the gas is closed in cut-out, when opening valve port and realizing gas transmission again, the locking bar steel ball is resetted again get back in the pallet, the operation of this reseting procedure is very inconvenient.
The model utility content
Technical problem to be solved in the utility model is: provide a kind of simple in structure, cut off the back reset operation very easily superpressure cut off pressure governor automatically.
The technological scheme that adopts for solving the problems of the technologies described above is: a kind of superpressure is cut off pressure governor automatically, comprise regulator and shut-off means, described regulator includes the cam of rest cut-off valve holder assembly, described shut-off means includes square frame and an end and cuts off the diaphragm axle that diaphragm unit is connected, in the described square frame camshaft is installed, described cam is installed on the outer camshaft of square frame, be equipped with in the square frame locking framework and cooperate with this locking framework be installed in lock dog on the camshaft, the other end of diaphragm axle is connected with locking framework.
Further be, locking framework is made of locking bearing and rocking arm, and the locking bearing is installed in an end of rocking arm, and locking framework cooperates with lock dog by the locking bearing, and the other end and the square frame of rocking arm are hinged, and the other end of diaphragm axle and the middle part of rocking arm are hinged.
The optimal way of such scheme is, the hinged end of rocking arm and square frame has a hinging hole, and a hinge is installed in hinging hole, and the two ends of hinge are connected with square frame by bearing.
The beneficial effects of the utility model are: by being positioned at lock dog of installation on the camshaft of square frame, one cover locking mechanism is set in square frame again, make this locking framework cooperate the purpose that realizes locking cam with lock dog, locking framework is connected with the diaphragm axle of cut-off valve, when superpressure appears in the distribution pressure in transmission ﹠ distribution are sent pipe network, the superpressure source of the gas is imported in the cut-out film chamber that constitutes by cut-out lower cover and cut-out loam cake by the shutoff signal pipe, and act on the cut-out diaphragm unit, the diaphragm axle that is promoted to be connected with this cut-out diaphragm unit by the cut-out diaphragm unit moves vertically, and drive the locking framework be connected with this diaphragm axle and move and make lock dog lose locking, and then make camshaft lose the locking and rotate, at this moment, cut off spring to lose the supporting of cam and promote the cut-off valve holder assembly and move down thereby source of the gas is closed in the valve port sealing, reach the purpose of cut-out; Distribution pressure in transmission ﹠ distribution are sent pipe network is replied normal pressure, in the time of need locking again, the diaphragm axle is after the effect that loses the pressure that is imported by the shutoff signal pipe, automatically revert to original position, and then the drive locking framework is returned to original position, and then come rotating cam by the rotating cam axle with external force, support the cut-off valve holder assembly and get final product.This shows that it is not only simple in structure that superpressure of the present utility model is cut off pressure governor automatically, and reach cut off purpose after, the operation that the cut-off valve holder assembly is resetted again recover air feed is also very convenient.
Description of drawings
Fig. 1 cuts off the structural representation of pressure governor automatically for a kind of superpressure of the utility model;
The amplification assumption diagram of the shut-off means that Fig. 2 relates to for the utility model;
Fig. 3 is the A-A sectional drawing of Fig. 2;
Fig. 4 is the amplification assumption diagram of shut-off means of the prior art.
Be labeled as among the figure: lower cover 1, valve body 2, pressuring adjusting valve base assembly 3, valve rod 4, valve port 5, cut-off valve holder assembly 6, cut off spring 7, following membrane cover 8, homophony diaphragm 9, last membrane cover 10, outlet pressure Regulation spring 11, adjustable lever 12, regulate tube 13, square frame 14, lock dog 15, bearing 16; rocking arm 17; diaphragm axle 18; cut off lower cover 19; cut off loam cake 20; cut off diaphragm unit 21; cut off Regulation spring 22; cut off Regulation spring seat 23; capping 24; cam 25; camshaft 26; shutoff signal pipe 29; positioning ball 31; lock shaft steel ball 32; locking bar steel ball 33; pallet 34; spring 35; Returnning spring 36 and spacing axle sleeve 37; hinging hole 38; hinge 39; bearing 40.
Embodiment
For the ease of the understanding to technical solutions of the utility model, index map 1, Fig. 3, Fig. 4 make brief description to prior art.Superpressure of the prior art is cut off pressure governor automatically and is made of regulator and shut-off means, pressure regulation dress pavilion comprises lower cover 1, valve body 2, pressuring adjusting valve base assembly 3, valve rod 4, valve port 5, cut-off valve holder assembly 6, cut off spring 7, following membrane cover 8, homophony diaphragm 9, last membrane cover 10, outlet pressure Regulation spring 11, adjustable lever 12, regulate tube 13, cam 25 and pressure regulation signal tube, shut-off means comprises square frame 14, the diaphragm axle, cut off lower cover 19, cut off loam cake 20, cut off diaphragm unit 21, cut off Regulation spring 22, cut off Regulation spring seat 23, capping 24, camshaft 26, shutoff signal pipe 29 and positioning ball 31, lock shaft steel ball 32, locking bar steel ball 33, pallet 34, spring 35, Returnning spring 36 and spacing axle sleeve 37.Its working principle is, when fluctuating in the allowed band that the distribution pressure in the pipe network is being set, import in the pressure regulator membrane chamber that constitutes by last membrane cover 10 and following membrane cover 8 by the pressure regulation signal tube source of the gas that will fluctuate, and act on the homophony diaphragm 9, regulate the distance of pressuring adjusting valve base assembly 3 and valve port 5 again by valve rod 4, reach the effect of peak regulation pressure regulation; When superpressure appears in distribution pressure, the superpressure source of the gas is imported in the cut-out film chamber that constitutes by cut-out lower cover 19 and cut-out loam cake 20 by shutoff signal pipe 29, and act on the cut-out diaphragm unit 21, promote locking bar steel ball pallet 34 and move axially by cutting off diaphragm unit 21 along diaphragm axle 18, because moving axially of pallet 34, locking bar steel ball 33 can slip in the macroporous cavity in the pallet 34 and make diaphragm axle 18 lose locking, at this moment Returnning spring 36 will promote spacing axle sleeve 37 and and then move vertically, and pass the position that positioning ball 31 departs from lock shaft steel ball 32, lock shaft steel ball 32 lose stop and glide make camshaft 26 lose the locking and rotate, at this moment, cut off spring 7 to lose the supporting of cam and promote cut-off valve holder assembly 6 and move down thereby source of the gas is closed in valve port 5 sealings, reach the purpose of cut-out.The superpressure automatic control regulator of this structure, structure is very complicated, and the reset operation that recovers conveying gas after super the cut-out is also very inconvenient.
As Fig. 1, Fig. 2, shown in Figure 3 be the utility model provide a kind of simple in structure, cut off the back reset operation very easily superpressure cut off pressure governor automatically.This superpressure is cut off pressure governor automatically and is comprised regulator and shut-off means, described regulator includes the cam 25 of rest cut-off valve holder assembly 6, described shut-off means includes square frame 14 and an end and cuts off the diaphragm axle 18 that diaphragm unit 21 is connected, in the described square frame 14 camshaft 26 is installed, described cam 25 is installed on square frame 14 camshaft 26 outward, be equipped with in the square frame 14 locking framework and cooperate with this locking framework be installed in lock dog 15 on the camshaft 26, the other end of diaphragm axle 18 is connected with locking framework.Like this, by a lock dog 15 is installed on the camshaft 26 that is positioned at square frame 14, one cover locking mechanism is set in square frame 14 again, make this locking framework cooperate the purpose that realizes locking cam 25 with lock dog 15, locking framework is connected with the diaphragm axle 18 of cut-off valve, when superpressure appears in the distribution pressure in transmission ﹠ distribution are sent pipe network, the superpressure source of the gas is imported in the cut-out film chamber that constitutes by cut-out lower cover 19 and cut-out loam cake 20 by shutoff signal pipe 29, and act on the cut-out diaphragm unit 21, the diaphragm axle 18 that is promoted to be connected with this cut-out diaphragm unit 21 by cut-out diaphragm unit 21 moves vertically, and drive the locking framework be connected with this diaphragm axle 18 and move and make lock dog 15 lose locking, and then make camshaft 26 lose the locking and rotate, at this moment, cut off spring 7 to lose the supporting of cam 25 and promote cut-off valve holder assembly 6 and move down thereby source of the gas is closed in valve port 5 sealings, reach the purpose of cut-out; Distribution pressure in transmission ﹠ distribution are sent pipe network is replied normal pressure, in the time of need locking again, diaphragm axle 18 is after the effect that loses the pressure that is imported by shutoff signal pipe 29, automatically revert to original position, and then the drive locking framework is returned to original position, and then come rotating cam 25 by rotating cam axle 26 with external force, support cut-off valve holder assembly 6 and get final product.It is not only simple in structure to realize that thus superpressure of the present utility model is cut off pressure governor automatically, and reach cut off purpose after, cut-off valve holder assembly 6 is resetted again, the operation that recovers air feed is purpose very easily also.Aspect automatic peak regulation pressure regulation, pressure is under the normal working in the pipeline when transmission ﹠ distribution are sent, withstand cut-out diaphragm unit 21 by the precompression supporting of cutting off Regulation spring 22, diaphragm axles 18 in the cut-out diaphragm unit 21 are pushed and move to the X-Y axial location place that is positioned at rocking arm 17, at this moment the bearing 16 on the rocking arm 17 firmly locks lock dog 15, lock dog 15 is with camshaft 26 location, camshaft 26 can not be rotated, at this moment the cut-off valve holder assembly 6 that the cam that is installed on camshaft 26 will be assemblied on the valve rod 4 holds up, stop cut-off valve holder assembly 6 to move down, make the valve port 5 in the valve body 2 open unimpeded.
For the structure that further makes locking framework simpler, make more convenient, locking framework is made of locking bearing 16 and rocking arm 17, locking bearing 16 is installed in an end of rocking arm 17, locking framework cooperates with lock dog 15 by locking bearing 16; the other end of rocking arm 17 and square frame 14 are hinged, and the middle part of the other end of diaphragm axle 18 and rocking arm 17 is hinged.
In the above-mentioned mode of execution, in order to improve the sensitivity of shut-off means, rocking arm 17 and square frame 14 hinged ends have a hinging hole 38, and a hinge 39 is installed in hinging hole 38, and the two ends of hinge 39 are connected with square frame 14 by bearing 40.During work, rocking arm 17 forms rolling friction structure around the rotation of bearing 40 centers, makes frictional force reach minimum, thereby effectively raises the sensitivity of locking framework, the sensitivity that has also just improved shut-off means.
Claims (3)
1. a superpressure is cut off pressure governor automatically, comprise regulator and shut-off means, described regulator includes the cam (25) of rest cut-off valve holder assembly (6), described shut-off means includes square frame (14) and an end and cuts off the diaphragm axle (18) that diaphragm unit (21) is connected, camshaft (26) is installed in the described square frame (14), described cam (25) is installed on the outer camshaft (26) of square frame (14), it is characterized in that: be equipped with in the square frame (14) locking framework and cooperate with this locking framework be installed in lock dog (15) on the camshaft (26), the other end of diaphragm axle (18) is connected with locking framework.
2. a kind of superpressure according to claim 1 is cut off pressure governor automatically, it is characterized in that: locking framework is made of locking bearing (16) and rocking arm (17), locking bearing (16) is installed in an end of rocking arm (17), locking framework cooperates with lock dog (15) by locking bearing (16); the other end of rocking arm (17) and square frame (14) are hinged, and the middle part of the other end of diaphragm axle (18) and rocking arm (17) is hinged.
3. a kind of superpressure according to claim 2 is cut off pressure governor automatically, it is characterized in that: the hinged end of rocking arm (17) and square frame (14) has a hinging hole (38), a hinge (39) is installed in hinging hole (38), and the two ends of hinge (39) are connected with square frame (14) by bearing (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205958160U CN201844083U (en) | 2010-11-08 | 2010-11-08 | Pressure regulator with function of automatic cutout upon excess pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205958160U CN201844083U (en) | 2010-11-08 | 2010-11-08 | Pressure regulator with function of automatic cutout upon excess pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201844083U true CN201844083U (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205958160U Expired - Fee Related CN201844083U (en) | 2010-11-08 | 2010-11-08 | Pressure regulator with function of automatic cutout upon excess pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201844083U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174858A (en) * | 2013-04-15 | 2013-06-26 | 四川嘉星燃气设备制造有限公司 | Integrated cut-off type pressure regulator |
| CN104565389A (en) * | 2014-12-30 | 2015-04-29 | 特瑞斯能源装备股份有限公司 | Shut-off mechanism of voltage regulator |
| CN106567951A (en) * | 2015-10-08 | 2017-04-19 | 大丰市丰泰机电有限公司 | Quick-reaction voltage regulator adapted to dirty environment |
| CN111853296A (en) * | 2020-07-23 | 2020-10-30 | 乐山川天燃气输配设备有限公司 | Overpressure automatic cut-off pressure regulator |
-
2010
- 2010-11-08 CN CN2010205958160U patent/CN201844083U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174858A (en) * | 2013-04-15 | 2013-06-26 | 四川嘉星燃气设备制造有限公司 | Integrated cut-off type pressure regulator |
| CN103174858B (en) * | 2013-04-15 | 2015-10-28 | 四川嘉星燃气设备制造有限公司 | Integration cutting type pressure regulator |
| CN104565389A (en) * | 2014-12-30 | 2015-04-29 | 特瑞斯能源装备股份有限公司 | Shut-off mechanism of voltage regulator |
| CN106567951A (en) * | 2015-10-08 | 2017-04-19 | 大丰市丰泰机电有限公司 | Quick-reaction voltage regulator adapted to dirty environment |
| CN111853296A (en) * | 2020-07-23 | 2020-10-30 | 乐山川天燃气输配设备有限公司 | Overpressure automatic cut-off pressure regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20161108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |