CN202884151U - Secondary pressure regulating building pressure regulator - Google Patents
Secondary pressure regulating building pressure regulator Download PDFInfo
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- CN202884151U CN202884151U CN201220454261.7U CN201220454261U CN202884151U CN 202884151 U CN202884151 U CN 202884151U CN 201220454261 U CN201220454261 U CN 201220454261U CN 202884151 U CN202884151 U CN 202884151U
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- pressure
- homophony
- valve
- preset
- chamber
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Abstract
The utility model discloses a secondary pressure regulating building pressure regulator which mainly comprises a valve body, a main regulating membrane box, a main regulation valve opening which is arranged in the valve body in an assembled mode, a main regulation valve petal, a main regulation valve rod, a lever mechanism and a front pressure presetting device. The secondary pressure regulating building pressure regulator is structurally characterized in that a front pressure pre-regulator is arranged at the front end of an existing main regulating throttle structure in an assembled mode to form a building regulator with a 'secondary pressure regulation' function, the building regulator can collect a pressure fluctuation signal and a rear fluctuation signal of gas source of the front end as regulation sources to conduct 'secondary pressure regulation'. Even if front pressure and rear pressure fluctuation is large and wide in scope, gas which is stable in pressure can be transported to a unit building and a user to safely use. The secondary pressure regulating building pressure regulator has the advantages of being quick in pressure adjustment reaction speed, high in voltage stabilization accuracy, good in gas transport quality, safe and reliable in operation, and long in service life. The secondary pressure regulating building pressure regulator is a preferred ideal product which upgrades an existing building high pressure device, and has good popularization and used prospect.
Description
Technical field:
The utility model relates to a kind of voltage-regulating and voltage-stabilizing device, belongs to the security facilities that send combustion gas to carry out pressure regulation to transmission ﹠ distribution, specifically the second voltage regulation building regulator.
Background technique:
Along with the high speed development of China's petrochemical industry cause and the continuous propelling of urbanization " coal changes gas " engineering construction, at present, the most of town dweller of China has generally used combustion gas as main life fuel.The main task of city gas company is exactly to guarantee under the safe prerequisite by gas line network to the combustion gas that the transmission ﹠ distribution pressurization pressure is stable of each unit building for user security.But, because gas line network device systems self is very huge numerous and diverse and will be subject to simultaneously the impact of the many factors such as source of the gas quality, geological environment and weather conditions in actual moving process, can cause inevitably that distribution pressure produces affects the gas transmission quality than great fluctuation process.Gas company is in order to ensure the pressure stability of institute's delivery of fuel gas, the general equipped building regulator of gas transmission main pipe that all will be in the unit building, can be farthest with the pressure stability regulation and control of delivery of fuel gas in the pressure range that allows fluctuation.The inventor once proposed a kind of name and was called " high-accuracy pressure regulator for buildings " (China Patent No.: utility model patent ZL200920082372.8), it is to import the Pressure Fluctuation Signal in the pressure valve chamber behind the valve body in the bottom film chamber and act on diaphragm unit, promote flap by lever assembly again and move up and down to regulate the throttle opening of valve port, and then realize the purpose that automatic regulation output air pressure tends towards stability.Although this building regulator uses for many years in China gas transmission industry, it has positive effect to the gas transmission quality of improving unit building.But, still there are some familiar lacunas in existing building regulator in actual moving process, its main manifestations is: when the gas line network supply pressure fluctation is wider in a big way, in the situation that firm discharge is constant, its pressure regulation reaction velocity can descend thereupon and then cause the precision of voltage regulation also to decrease, and also can directly affect the workmanship that transmission ﹠ distribution are sent combustion gas when serious.This be since existing building regulator just solely gather after Pressure Fluctuation Signal in the pressure valve chamber as the regulation and control source, in fact, supply pressure fluctation in the front pressure valve chamber will be more direct on the impact of institute's output gas pressure, and the process that is caused the output gas pressure fluctuation of back cavity institute by the ante-chamber supply pressure fluctation exists the regular hour poor.This just existing building regulator have the main cause that the pressure regulation reaction velocity is slow, voltage regulation performance is low, the utility model wants to solve this technical task exactly.
The model utility content:
The purpose of this utility model is to press afterwards fluctuation signal to do on the basis in regulation and control source in existing building regulator collection, proposes a kind of second voltage regulation building regulator that can also carry out to front pressurized air source the preset throttling.
The purpose of this utility model is achieved by the following technical solution:
The second voltage regulation building regulator that the utility model proposes, it comprises valve body, be installed on the homophony bellows of valve body, be fitted to the homophony valve port in the valve body, homophony flap and homophony valve rod, the interval wall body separator valve body that said homophony valve port is fitted to valve body is front pressure valve chamber and rear pressure valve chamber, the homophony flap and the homophony valve port that are fitted to homophony valve rod bottom form the main regulation flow structure, said homophony bellows is by lower film pedestal, upper membrane cover body, diaphragm unit, the homophony spring consists of with the axle core that is installed on diaphragm unit, said diaphragm unit is installed between lower film pedestal and the upper membrane cover body that to separate the homophony bellows be upper film chamber and bottom film chamber, in bottom film chamber, be provided with leverage, the two ends of leverage are articulated in respectively axle core and homophony valve rod, lower film pedestal is fitted with the rear pressure signals collecting pipe that is communicated with bottom film chamber and rear pressure valve chamber, it is characterized in that: press preregulator before in the front pressure valve chamber of valve body, being fitted with, said front pressure preregulator is by the spring cassette holder, be fitted to the preset flap in the spring cassette holder, preset spring and the preset valve port that becomes to be threaded with the spring cassette holder, adjusting nut consists of, be provided with the pilot pore that communicates with front pressure valve chamber in the bottom of adjusting nut, form the preconditioning flow structure by preset flap and the preset valve port of preset spring-loaded.The outstanding structural feature of the utility model is: it is on the basis that existing building regulator " is done the regulation and control source with rear pressure fluctuation signal ", in the front pressure valve chamber of valve body, set up again one and can carry out the front pressure preregulator that the throttling pressure regulation is processed to the source of the gas fluctuation, that is to say, existing " rear pressure fluctuation signal is imported bottom film chamber and moves the main regulation flow structure of formation by lever assembly promotion flap " before, the supply pressure fluctation that the front end pipe network is occurred by front pressure preregulator carries out preset throttling processing, and then can make the gas that enters in the front pressure valve chamber of valve body be in all the time relatively stably pressure state, can effectively avoid because of the front end supply pressure fluctation rear end output pressure being exerted an influence.This first through the preset throttling, again through the building regulator that main regulation stream carries out " second voltage regulation " can gather simultaneously front end supply pressure fluctation signal and after the pressure fluctuation signal as the regulation and control source, this has fairly obvious effect to improving pressure regulation reaction velocity and the precision of voltage regulation.
The utility model also has following technical characteristics:
The front end that is positioned at the preset valve port in valve body is fitted with filter core.It can effectively stop and residually mix that fine impurity enters in the voltage-regulating transformer valve body in gas, and this all has certain effect to preventing fine impurity and washing away the damage Sealing and then prolong the voltage regulator operation life-span and improve the gas transmission quality.
Top end at the preset flap is embedded with Sealing.This structural design can prevent preset flap clashing and breaking preset valve port in moving process effectively, and this is to also there being certain effect the working life that prolongs pressure governor.
Be provided with seal ring at preset flap and spring cassette holder fitting surface.
Upper membrane cover body is fitted with the emptying valve that communicates with upper film chamber.It can make the upper film chamber of homophony bellows communicate with the external world to be in emptying atmospheric pressure state, and this structural design also has certain effect to a further raising building pressure regulation reaction velocity and the precision of voltage regulation.
The utility model is compared with prior art has following substantive distinguishing features and progress:
The utility model presses preregulator to form successively through the preset throttling before having initiated and being equipped with in the pressure valve chamber before valve body, " second voltage regulation " structure of homophony throttling, it can carry out the preset throttling and make that the front pressure in the pressure valve chamber keeps relatively stably pressure state before the pressure governor the gas line network supply pressure fluctation, can farthest avoid because of the impact of front end supply pressure fluctation on output pressure, can greatly improve the working condition of homophony throttling, because it is to adopt simultaneously front end supply pressure fluctation signal and rear pressure fluctuation signal to carry out " second voltage regulation " as the regulation and control source, even in the situation that pressure surge appears in gas line network is wide on a large scale, can both guarantee that pressure governor has high pressure regulation reaction velocity and the precision of voltage regulation, to improving a unit building gas transmission quality positive effect be arranged.
Description of drawings:
Fig. 1 is structural representation of the present utility model, and accompanying drawing also makes an abstract.
Fig. 2 is Fig. 1
IPartial enlarged drawing is illustrated in the structural representation of pressing preregulator before equipped in the front pressure valve chamber of valve body.
Description of reference numerals:
1 is end cap, and 2 is arrow, and 3 is pressure gauge, 4 is filter core, and 5 is the homophony valve rod, and 6 is upper membrane cover body, 7 is bearing pin, and 8 is leverage, and 9 is the homophony spring, 10 is the homophony spring seat, and 11 is the homophony nut, and 12 is upper film chamber, 13 is emptying valve, and 14 is diaphragm unit, and 15 is lower film pedestal, 16 is bottom film chamber, and 17 is the axle core, and 18 is the outer pipe flange, 19 is rear pressure valve chamber, and 20 is rear pressure signals collecting pipe, and 21 is the homophony valve port, 22 is valve body, and 23 is the homophony flap, and 24 is front pressure valve chamber, 25 are the preset flap, and 26 is the interval wall body, and 27 is the inlet tube flange, 28 are the preset valve port, and 29 are the preset spring, and 30 is seal ring, 31 is the pilot pore, and 32 is adjusting nut, and 33 is the spring cassette holder, 34 is through hole, and 35 is Sealing.
Embodiment:
Further describe embodiment below in conjunction with accompanying drawing:
The second voltage regulation building regulator that the utility model proposes, it is mainly by valve body 22, be installed on the homophony bellows of valve body 22, be fitted to the homophony valve port 21 in the valve body 22, homophony flap 23, homophony valve rod 5 and front pressure preregulator consist of, the interval wall body 26 separation valve bodies 22 that said homophony valve port 21 is fitted to valve body 22 are front pressure valve chamber 24 and rear pressure valve chamber 19, the homophony flap 23 that is fitted to homophony valve rod 5 bottoms forms the main regulation flow structure with homophony valve port 21, said homophony bellows is by lower film pedestal 15, upper membrane cover body 6, diaphragm unit 14, the homophony spring 9 that is supported on diaphragm unit 14 consists of with the axle core 17 that is installed on diaphragm unit 14, diaphragm unit 14 is installed between lower film pedestal 15 and the upper membrane cover body 6 that to separate the homophony bellows be upper film chamber 12 and bottom film chamber 16, upper membrane cover body 6 tops are fitted with the homophony spring seat 10 of supporting homophony spring 9, homophony nut 11, be fitted with the emptying valve 13 that communicates with upper film chamber 12 at upper membrane cover body 6 tegmental walls, in bottom film chamber 16, be provided with the leverage 8 of being joined supporting by bearing pin 7 hinges, one end of leverage 8 is articulated in axle core 17 lower ends, the other end of leverage 8 is articulated in homophony valve rod 5 tops, be fitted with the rear pressure signals collecting pipe 20 that is communicated with bottom film chamber 16 and rear pressure valve chamber 19 at lower film pedestal 15 diapires, said front pressure preregulator is by spring cassette holder 33, be fitted to the preset flap 25 in the spring cassette holder 33, preset spring 29 and the preset valve port 28 that is threaded with 33 one-tenth of spring cassette holders, adjusting nut 32 consists of, fitting surface at preset flap 25 and spring cassette holder 33 is fitted with seal ring 30, be embedded with Sealing 35 at preset flap 25 top ends, the preset flap 25 that is supported by preset spring 29 forms the preconditioning flow structure with preset valve port 28.Said front pressure preregulator is fixedly to be fitted in the following manner in the front pressure valve chamber 24 of valve body 22: the end cap 1 of at first dismantling valve body 22 left ends, send into front pressure preregulator in the front pressure valve chamber 24 and make the base card of preset valve port 28 be assigned in the step position of front pressure valve chamber 24 interior settings, again filter core 4 is held out against the front-end face that is fitted to preset valve port 28, make it compress filter core 4 with bolt fixed installation end cap 1 at last, can hold out against front pressure preregulator by filter core 4 is fixedly installed in the front pressure valve chamber 24 it, be provided with the pilot pore 31 that communicates with front pressure valve chamber 24 in the bottom of adjusting nut 32, make air pressure in the front pressure valve chamber 24 can act on preset flap 25 bottoms and promote the elastic force that preset flap 25 overcomes preset spring 29 to be moved to the left.At this moment be in temporary transient stable equilibrium position under the acting in conjunction of preset flap 25 with the air pressure in front pressure valve chamber 24 and preset spring 29 elastic force, preset flap 25 can carry out the preset throttling according to the open degree that supply pressure fluctation situation move left and right is regulated the preconditioning flow structure automatically, can make the air pressure in the front pressure valve chamber 24 be in all the time relatively stably pressure state.The utility model is to carry out in the following manner second voltage regulation work: with the inlet tube flange 27 of valve body 22, outer pipe flange 18 is connected in series on the building gas transmission supervisor, the pressure surge situation that can observe intuitively gas line network at valve body 22 entrance point setting pressure tables 3, at first send combustion gas operational administrative rules to set specified distribution pressure according to a building transmission ﹠ distribution: slowly rotating operation homophony nut 11 is regulated the precompression of 9 pairs of diaphragm units 14 of homophony spring by homophony spring seat 10, can open the main regulation head piece by leverage 8 pulling homophony valve rods 5, at this moment, compressed gas in the gas transmission supervisor is with as shown in arrow 2, after the gas that is filtered by filter core 4 carries out the preset throttling through front pressure preregulator, enter in the front pressure valve chamber 24 from the through hole 34 of preset valve port 28, front pressure valve chamber 24 interior gases again through the homophony throttling is laggard enter after in the pressure valve chamber 19, rear pressure signals collecting pipe 20 can import the air pressure in the rear pressure valve chamber 19 in the bottom film chamber 16 of homophony bellows, at this moment, again accurate adjustment homophony nut 11 makes diaphragm unit 14 at homophony spring 9 precompressions and imports under the bottom film chamber 16 internal air pressure actings in conjunction and is in new equilibrium position: that is to say, diaphragm unit 14 makes the main regulation head piece form specified aperture by 5 displacements of leverage 8 pulling homophony valve rods when new equilibrium position, and the atmospheric pressure values in the rear pressure valve chamber 19 that is determined by the specified aperture of main regulation head piece are the specified distribution pressure that will set.So far, the second voltage regulation building regulator will be in stable working state.
The working principle of front pressure preregulator of the present utility model: when the rising of gas line network front end bleed pressure is risen front pressure valve chamber 24 internal air pressures, gas in the front pressure valve chamber 24 can promote preset flap 25 to left dislocation, because the aperture that can make the preset throttling that moves to left of preset flap 25 reduces to reduce front pressure valve chamber 24 internal air pressures; In like manner, when the bleed pressure reduction descends front pressure valve chamber 24 internal air pressures, preset spring 29 will promote preset flap 25 displacement to the right, front pressure valve chamber 24 internal air pressures because the aperture that the moving to right of preset flap 25 can make the preset throttling increases to raise, so far, air pressure before front pressure preregulator can be guaranteed when fluctuation appears in bleed pressure in the pressure valve chamber 24 is in stable pressure state all the time, can greatly improve the pressure regulation working condition of follow-up homophony throttling.
The utility model carries out the working principle of homophony throttling: when a unit building use traffic variation causes that fluctuation appears in rear pressure valve chamber 19 internal air pressures, rear pressure signals collecting pipe 20 can in time import the air pressure fluctuation signal in the rear pressure valve chamber 19 in the bottom film chamber 16 of homophony bellows, at this moment, diaphragm unit 14 will be subjected to the acting in conjunction of homophony spring 9 and bottom film chamber 16 interior fluctuation air pressure and move up and down, the diaphragm unit 14 that moves up and down will be regulated the aperture of main regulation head piece and then the air pressure in the rear pressure valve chamber 19 of adjusting automatically by leverage 8 pulling homophony valve rods 5, can guarantee that 19 internal air pressure all-the-time stable ground, rear pressure valve chamber is in the working state of specified distribution pressure.
The utility model be gather respectively the supply pressure fluctation signal, rear pressure fluctuation signal carries out " second voltage regulation " by preset flow controller and main regulation flow structure, even in the situation that fluctuation appears in " front pressure ", " then press " simultaneously, it can both be guaranteed to the stable combustion gas of a unit building delivery pressure for user security.
Claims (5)
1. second voltage regulation building regulator, it comprises valve body (22), be installed on the homophony bellows of valve body (22), be fitted to the homophony valve port (21) in the valve body (22), homophony flap (23) and homophony valve rod (5), interval wall body (26) the separation valve body (22) that said homophony valve port (21) is fitted to valve body (22) is front pressure valve chamber (24) and rear pressure valve chamber (19), the homophony flap (23) that is fitted to homophony valve rod (5) bottom forms the main regulation flow structure with homophony valve port (21), said homophony bellows is by lower film pedestal (15), upper membrane cover body (6), diaphragm unit (14), homophony spring (9) and the axle core (17) that is installed on diaphragm unit (14) consist of, said diaphragm unit (14) is installed between lower film pedestal (15) and the upper membrane cover body (6) that to separate the homophony bellows be upper film chamber (12) and bottom film chamber (16), in bottom film chamber (16), be provided with leverage (8), the two ends of leverage (8) are articulated in respectively axle core (17) and homophony valve rod (5), lower film pedestal (15) is fitted with the rear pressure signals collecting pipe (20) that is communicated with bottom film chamber (16) and rear pressure valve chamber (19), it is characterized in that: in the front pressure valve chamber (24) of valve body (22), be fitted with front pressure preregulator, said front pressure preregulator is by spring cassette holder (33), be fitted to the preset flap (25) in the spring cassette holder (33), preset spring (29) and the preset valve port (28) that becomes to be threaded with spring cassette holder (33), adjusting nut (32) consists of, be provided with the pilot pore (31) that communicates with front pressure valve chamber (24) in the bottom of adjusting nut (32), the preset flap (25) that is supported by preset spring (29) forms the preconditioning flow structure with preset valve port (28).
2. second voltage regulation building regulator according to claim 1, it is characterized in that: the front end that is positioned at preset valve port (28) in valve body (22) is fitted with filter core (4).
3. second voltage regulation building regulator according to claim 1 and 2, it is characterized in that: the top end at preset flap (25) is embedded with Sealing (35).
4. second voltage regulation building regulator according to claim 1 and 2 is characterized in that: be provided with seal ring (30) at preset flap (25) and spring cassette holder (33) fitting surface.
5. second voltage regulation building regulator according to claim 1 and 2 is characterized in that: go up membrane cover body (6) and be fitted with the emptying valve (13) that communicates with upper film chamber (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220454261.7U CN202884151U (en) | 2012-09-07 | 2012-09-07 | Secondary pressure regulating building pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220454261.7U CN202884151U (en) | 2012-09-07 | 2012-09-07 | Secondary pressure regulating building pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202884151U true CN202884151U (en) | 2013-04-17 |
Family
ID=48075581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220454261.7U Expired - Lifetime CN202884151U (en) | 2012-09-07 | 2012-09-07 | Secondary pressure regulating building pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202884151U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605267A (en) * | 2015-11-16 | 2016-05-25 | 乐山市山鹰模具有限责任公司 | Gas pressure regulator achieving direct action through spring load |
| US9677254B2 (en) | 2014-04-16 | 2017-06-13 | SensiTap, LLC | Water-saving faucet |
| CN109373031A (en) * | 2018-11-26 | 2019-02-22 | 乐山川天燃气输配设备有限公司 | Articulated structure direct acting type pressure regulator |
-
2012
- 2012-09-07 CN CN201220454261.7U patent/CN202884151U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9677254B2 (en) | 2014-04-16 | 2017-06-13 | SensiTap, LLC | Water-saving faucet |
| CN105605267A (en) * | 2015-11-16 | 2016-05-25 | 乐山市山鹰模具有限责任公司 | Gas pressure regulator achieving direct action through spring load |
| CN109373031A (en) * | 2018-11-26 | 2019-02-22 | 乐山川天燃气输配设备有限公司 | Articulated structure direct acting type pressure regulator |
| CN109373031B (en) * | 2018-11-26 | 2023-12-22 | 乐山川天燃气输配设备有限公司 | Hinge structure direct acting voltage regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |
|
| CX01 | Expiry of patent term |