CN201696693U - Pipeline gas pressure regulator equipped with safety protection device inside - Google Patents
Pipeline gas pressure regulator equipped with safety protection device inside Download PDFInfo
- Publication number
- CN201696693U CN201696693U CN2010202339328U CN201020233932U CN201696693U CN 201696693 U CN201696693 U CN 201696693U CN 2010202339328 U CN2010202339328 U CN 2010202339328U CN 201020233932 U CN201020233932 U CN 201020233932U CN 201696693 U CN201696693 U CN 201696693U
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- valve
- pressure
- head
- pressure regulator
- locker
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Abstract
The utility model discloses a gas pressure regulator equipped with a safety protection device inside. The head of a pressure regulating valve is mounted on an air inlet side, and the valve rod of the pressure regulating valve penetrates a valve port to be connected together with the head of a cut-off valve; a self-lock spring is installed among a limiting plate, a locking device and an opening plate of the voltage regulator; and the lower part of an unlocking pull rod in a pressure regulator leather film component is connected with the upper part of the locking device in a latched manner, so as to achieve the function of automatic releasing in case of excess pressure. The utility model adopts the design of combing a front push closed structure and a rear push closed structure of a traditional pressure regulator, and the single valve port of the pressure regulator is changed to be double valve ports, wherein the head of the pressure regulating valve adopts a rear push type close, but the head of the cut-off valve adopts a front push close. The utility model makes up for deficiencies in the prior art, and eliminates potential safety hazards in the prior art during practical application.
Description
Technical field
The utility model relates to a kind of pipeline gas regulator.
Background technique
In at present domestic pipeline gas transmission, pressure governor is the core of system, and its safe operation is directly connected to huge numbers of families' the security of the lives and property, particularly is in the pressure governor of user front end, and it is particularly important that its Security more seems.
Present widely used direct acting type pressure governor, their regulator and safety protection device are discrete, its maximum weakness is that shutoff signal is obtained from gas pipeline by signal tube.Because signal tube is installed in the outside of pressure governor, and pressure governor is installed in the open air, therefore, this safety protection device very easily suffers damage of external force in running, and then brings great potential safety hazard to regulator.
Direct acting type (self-powering type) pressure governor of present operation, when gas line network need be stopped the supple of gas or steam because of reasons such as pipeline maintenance or pipeline modifications, pressure governor does not make the pressure regulation valve port be in the state of complete opening because there being the pressure effect of source of the gas, when ventilating once more, pressure governor will resume operation automatically, and a lot of users do not close because of forgetting to close the burner valve or open valve midway when stopping the supple of gas or steam generation, can cause gas leakage when pipeline recovers ventilation, and then cause catastrophic failure.
Summary of the invention
Order of the present utility model provides the pipeline gas pressure governor that a kind of inside is provided with safety protection device, has remedied the deficiencies in the prior art, has eliminated prior art potential safety hazard in actual applications.
The technical solution of the utility model is: a kind of inside is provided with the pipeline gas pressure governor of safety protection device, and the pressure regulation valve head is installed in the air inlet side of pressure governor, and the valve rod of pressure regulation valve head passes valve port and cuts off the valve head composition shut-off means that links together; Between the limiting board of pressure governor, locker and the aperture plate self-locking spring is housed, forms self-locking jointly and close device; Release pull bar bottom in the pressure governor rubber film component part is connected with snap close with locker top, and then forms trip gear; The locking iron plate is equipped with in the locker bottom, studs with the locking magnetic sheet in the air flue of valve body.
The utility model safety protection device all is installed in pressure governor inside, after the pressure governor cavity pressure surpasses maximum allowble pressure, rubber film component part separates automatically with locker, and the suction-combining force moment drive of the active force of self-locking spring and locking magnetic sheet and locking iron plate is cut off valve head gas circuit is closed; When pipeline was stopped the supple of gas or steam, the superposition power of pressure adjusting spring and self-locking spring and the suction-combining force of locking magnetic sheet drove jointly and cut off valve head cut-out gas circuit, have so just protected gas ductwork and combustion gas user's security of operation.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, be equipped with valve gap 2 on the valve body 1.Valve gap 2 and the rubber film component part 5 middle pressure adjusting springs 6 that are provided with, rubber film component part 5 tightens together with release pull bar 7.Release pull bar 7 tops are connected with release lever 8, the bottom of release pull bar 7 is connected with locker 9 usefulness snap closes, locker 9 passes limiting board 10 and is connected with aperture plate 12, limiting board 10 and the aperture plate 12 middle self-locking springs 11 that are provided with, locking magnetic sheet 3 is equipped with in the air flue below of valve body 1, locking iron plate 4 is equipped with in locker 9 bottoms, aperture plate 12 and 13 movable bindings of cut-out valve head, cut off the side of giving vent to anger that valve head 13 is contained in valve port 14, pressure regulation valve head 16 passes valve port 14 and connects as one with cutting off valve head 13, cuts off on valve head and the pressure regulation valve head rubber valve pad 14 all is housed.
Working principle of the present utility model is as follows: when pressure governor is in the pipeline with certain gaseous-pressure, air-flow flows in the pressure governor chamber between pressure regulation valve head 16 and valve port 14, the pressure governor cavity pressure rises, rubber film component part 5 is subjected to the effect of gas pressure and upwards lifts, the bottom and the locker 9 of the release pull bar 7 in the rubber film component part 5 are in tight lock state at this moment, the rising of rubber film component part 5 drives locker 9 and moves upward together, and locker 9 drives 12 motions of aperture plate again, aperture plate 12 with moving direction by upwards changing into backward, from and pulling pressure regulation valve head 16 close to valve port 14, when cavity pressure reaches rating value, rubber valve pad 15 close port.When pressure governor during to the output pipeline air feed, cavity pressure descends, the back pressure that rubber film component part 5 is subjected to pressure adjusting spring 6 moves downward, drive locker 9 again and aperture plate 12 moves downward, after the break-in of aperture plate was transmitted, the pressure regulation valve head was pushed open forward, and air-flow enters once more in pressure governor the chamber in and makes the pressure rise, balance exercise and so forth remains on the pressure that pressure governor is outwards exported in the predetermined range always.
Superpressure safety cut-off function of the present utility model is achieved in that if cause surpassing in the pressure governor certain pressure because of the damage of pressure regulation valve head 16 or other parts malfunctioning, break away from release pull bar 7 because of locker 9 can't bear this pulling force this moment, at this moment locker 9 moves downward to minimum point under the active force of self-locking spring 11, be that aperture plate 12 will promote to cut off valve head 13 equally forward accordingly, cutting off valve head 13 moves until rubber valve pad 15 valve port 14 complete closed to valve port 14, locker 9 moves downward and makes locking iron plate 4 and locking magnetic sheet 3 close, the magnetic force of magnetic sheet has speeded and has cut off the speed of response of valve head and the soundness of locking, so whole excess pressure cutout was finished in moment.
The utility model realization principle of cutting off function of stopping the supple of gas or steam is as follows: because the pressure governor internal pressure is when dropping to certain value, aperture plate 12 is subjected to the acting in conjunction power of self-locking spring 11 and pressure adjusting spring 6 and moves downward, this moment, locking iron plate 4 made locker 9 news speed drop to extreme lower position under the suction of magnetic sheet, aperture plate 12 will cut off valve head 13 and push valve port 14 to, and the rubber valve pad 15 on the cut-out valve head 13 is with valve port 14 complete closed.To recover the pressure governor proper functioning after the pipeline ventilation, only need manually upwards to spur release lever 8 and get final product.
Claims (1)
1. an inside is provided with the pipeline gas pressure governor of safety protection device, it is characterized in that: pressure regulation valve head (16) is installed in the air inlet side of pressure governor, and the valve rod of pressure regulation valve head (16) passes valve port (14) and cuts off valve head (13) the composition shut-off means that combines; Between aperture plate (12) and locker (9), the limiting board (10) self-locking spring (11) is housed; Release pull bar (7) bottom in the pressure governor rubber film component part is connected with snap close with locker (9) top; Locking iron plate (4) is equipped with in the bottom of locker (9), studs with locking magnetic sheet (3) in the air flue of valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202339328U CN201696693U (en) | 2010-06-22 | 2010-06-22 | Pipeline gas pressure regulator equipped with safety protection device inside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202339328U CN201696693U (en) | 2010-06-22 | 2010-06-22 | Pipeline gas pressure regulator equipped with safety protection device inside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696693U true CN201696693U (en) | 2011-01-05 |
Family
ID=43397935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202339328U Expired - Lifetime CN201696693U (en) | 2010-06-22 | 2010-06-22 | Pipeline gas pressure regulator equipped with safety protection device inside |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696693U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865393A (en) * | 2011-07-05 | 2013-01-09 | 黄良京 | Automatic cutoff valve for pipe gas |
| CN104633196A (en) * | 2015-02-11 | 2015-05-20 | 河北安信燃气设备有限公司 | Front Voltage regulator of medium pressure indoor table for super-voltage-loss excess flow cut-off protection |
-
2010
- 2010-06-22 CN CN2010202339328U patent/CN201696693U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865393A (en) * | 2011-07-05 | 2013-01-09 | 黄良京 | Automatic cutoff valve for pipe gas |
| CN104633196A (en) * | 2015-02-11 | 2015-05-20 | 河北安信燃气设备有限公司 | Front Voltage regulator of medium pressure indoor table for super-voltage-loss excess flow cut-off protection |
| CN104633196B (en) * | 2015-02-11 | 2017-02-01 | 河北安信燃气设备有限公司 | Front Voltage regulator of medium pressure indoor table for super-voltage-loss excess flow cut-off protection |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110105 |