CN103174858B - Integration cutting type pressure regulator - Google Patents
Integration cutting type pressure regulator Download PDFInfo
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- CN103174858B CN103174858B CN201310128769.7A CN201310128769A CN103174858B CN 103174858 B CN103174858 B CN 103174858B CN 201310128769 A CN201310128769 A CN 201310128769A CN 103174858 B CN103174858 B CN 103174858B
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- cut
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Abstract
The invention discloses a kind of integrated cutting type pressure regulator, it is characterized in that: main structure comprises adjustment member, balance valve core parts, cut component and valve body; This product structure is simple, and be divided into several modular structure, compact dimensions, take up room little, on-line maintenance is easy to maintenance; Product air inlet bore is DN50, and bore of giving vent to anger is DN80, and negotiability is large; Adopt balanced type valve core structure, pressure surge is little, is suitable for pressure range broad; Adopt steel ball hung type to cut off structure, cut-out action sensitivity is high, and Repeatability is good, and it is simple to cut off operating pressure setting, and scope is wide.
Description
Technical field
The present invention relates to the controlling device in the mesolow gas ductwork distributing system of a kind of city, is specifically a kind of integrated cutting type pressure regulator.
Background technique
Pressure regulator main structure comprises adjustment member, equalizing feature, cut component; Traditional modulating valve pole face contact is point cantact, dumb during adjustment, because the contact of long-term face can cause regulating valve stem end wear to produce corrosion, and can there is the instability of adjustment and the drawback of Torque-adjusting increasing.Traditional equalizing feature leads directly to vent and directly exerts pressure to balance epithelium, and air-flow directly produces with balance epithelium and washes away and cause balancing epithelium fracture failure, has a strong impact on durability and the working life of balance epithelium; And the closedown that machining error and assembly error cause is poorly sealed and close error, also can affect product closing pressure grade and precision.Traditional cut component face contact is point cantact, dumb during cut-out, and the contact of long-term face can cause the wearing and tearing of cut-off valve boom end to produce corrosion, also can there is the instability of cut-out and cut off ineffective drawback.
Summary of the invention
The object of the invention is to provide a kind of integrated cutting type pressure regulator at this, be applicable to city mesolow gas ductwork distributing system and regulate as pressure applicable.
The present invention realizes like this, construct a kind of integrated cutting type pressure regulator, being applicable to city mesolow gas ductwork distributing system regulates applicable as pressure, it is characterized in that: main structure comprises adjustment member, balance valve core parts, cut component and valve body; Described adjustment member entirety is fixed on valve body by hex head bolt, spring washer, described valve body lower end is by hex head bolt, the capping of plain washer fixed valve body, described valve body capping and valve body lower end arrange O type circle A, the corresponding valve port place of valve body is provided with O type circle B, arranges O type circle C between described adjustment member and valve body;
Adjustment member comprises lower membrane cover, adjustment epithelium, large pallet, little pallet, sleeve, adjustable lever, hex head bolt is passed through between described lower membrane cover and upper membrane cover, packing ring, hexagon nut is fixed, in the cavity that lower membrane cover and upper membrane cover are formed, large pallet is set, little pallet, under diaphragm is positioned at large pallet, with connection block on lower membrane cover, upper membrane cover arranges connecting base by hexagon nut spring washer, connecting base is positioned on seat ring, upper membrane cover passes through socket head screw, spring washer fixes described seat ring, described sleeve is fixed by connecting base, sleeve top is capping, adjustable lever passes capping and interts in sleeve, fixed plate is provided with in sleeve, extension spring upper end is by spring fastening screw trip bolt A, lower end is fixed in sleeve by spring fastening screw trip bolt B, adjustable lever is with general taper pin and cotter pin, its lower end is built-in is provided with steel ball, extension spring is arranged by spring seat, described spring seat and adjustable lever are for being threaded,
Described balance valve core parts comprise balance valve pocket, balance diaphragm, balance film gland, valve rod, described balance film gland is positioned at valve rod upper end, fixed by socket head screw between balance film pressing plate and balance film connecting base, balance film connecting base arranged outside has O type circle J, balance film pressure pad is provided with in balance film connecting base, balance diaphragm is arranged on balance film pressure pad by balance film gland, O type circle I is provided with between balance diaphragm and balance film gland, valve stem casing is positioned at outside valve rod, and under being positioned at balance film connecting base, there is balance valve pocket valve stem casing outside, bearing housing A is provided with between described valve stem casing and balance valve pocket, bearing housing B is provided with between valve stem casing and valve rod, corresponding porose back-up ring on bearing housing A, balance valve pocket outside is provided with cut-out spring seat, cut off valve seat, cutting off spring is arranged on outside balance valve pocket by cutting off spring seat, O type circle G is also provided with between valve stem casing and balance valve pocket, O type circle F is provided with between described cut-out valve seat and balance valve pocket, both lower end parts are provided with circlip for shaft, cut off flap spring to arrange by cutting off valve seat, the lower end of described valve rod is provided with closely-pitched hexagon nut, plain cushion A, plain cushion B, flap nut, flap pressing plate A, flap pressing plate B, flap sealing gasket, flap sealing seat, arrange O type circle E between flap sealing seat and valve rod, flap pressing plate flap pressing plate flap sealing gasket is positioned at outside flap sealing seat,
Described cut component comprises to be cut off valve body, cut off valve rod, cuts off lever assembly, cuts off dwang, hand off and help pull a cart, cut off Returnning spring, described cut-out collision block is positioned at the one end cutting off valve rod, and fixed by locking nut, cut off and regulate capping to be arranged on cut-out valve body, ferrule fitting covers under being positioned at cut-out, cut off in valve body and be provided with cut-out lever assembly, hand off capping is arranged on to be cut off on valve body, hand off is helped pull a cart and is positioned on hand off pull bar, hand off spring is positioned at and cuts off capping, described cut-out rotary head is positioned at and cuts off on dwang, dwang lining is positioned at and cuts off dwang outer end, shaft block ring is positioned at the end of dwang lining, cut off between dwang and dwang lining and be provided with O type circle K, cut off pulling sleeve and cut-out valve gap corresponding part is provided with copper sheathing, bearing pin two ends are provided with bearing, setting sleeve A is set outside bearing pin, setting sleeve B.
The invention has the advantages that: this product structure is simple, and be divided into several modular structure, compact dimensions, take up room little, on-line maintenance is easy to maintenance; Product air inlet bore is DN50, and bore of giving vent to anger is DN80, and negotiability is large; Adopt balanced type valve core structure, pressure surge is little, is suitable for pressure range broad; Adopt steel ball hung type to cut off structure, cut-out action sensitivity is high, and Repeatability is good, and it is simple to cut off operating pressure setting, and scope is wide.
Accompanying drawing explanation
Fig. 1 is the inner overall structure schematic diagram of the present invention
Fig. 2 is the inner overall structure schematic diagram of the present invention
Fig. 3 is external overall structural representation of the present invention
Fig. 4 is adjustment member structural representation of the present invention
Fig. 5 is balance valve core modular construction schematic diagram of the present invention
Fig. 6 is cut component internal structure schematic diagram of the present invention
Fig. 7 is cut component internal structure schematic diagram of the present invention
Fig. 8 is cut component external structure schematic diagram of the present invention
Valve body capping 101, O type circle A102, hex head bolt 103, plain washer 104, valve body 105, valve port 106, O type circle B107, balance valve core parts 108, hex head bolt 109, spring washer 110, O type circle C111, adjustment member 112, Cross Recess Head Screw 113, O type circle D114, cut component 115, socket head screw 116;
Lower membrane cover 201, diaphragm 202, large pallet 203, little pallet 204, connecting plate 205, position limit socket 206, connection block 207, upper membrane cover 208, hexagon nut 209, spring washer 210, seat ring 211, spring fastening screw trip bolt B212, connecting base 213, extension spring 214, fixed plate 215, sleeve 216, capping 217, adjustable lever 218, spring fastening screw trip bolt A219, general taper pin 220, cotter pin 221, extension spring 222, hex head bolt 223, packing ring 224, hexagon nut 225, spring seat 226, socket head screw 227, spring washer 228, steel ball 229,
Closely-pitched hexagon nut 301, plain cushion A302, plain cushion B303, flap nut 303, flap pressing plate A304, flap pressing plate B305, flap sealing gasket 306, flap sealing seat 307, O type circle E308, circlip for shaft 309, cut off valve seat 310, O type circle F311, cut off flap spring 312, O type circle G313, cut off spring seat 314, cut off spring 315, bearing housing A316, valve stem casing 317, O type circle H318, balance film pressure pad 319, O type circle I320, balance diaphragm 321, balance film pressing plate 322, socket head screw 323, balance film gland 324, balance film connecting base 325, O type circle J326, valve rod 327, bearing housing B328, hole back-up ring 329, balance valve pocket 330,
Ferrule fitting 401, cut off valve rod 402, cut off and regulate capping 403, cut off adjustment member 404, cut off Returnning spring 405, interior hexagonal flush end Cock screw 406, cut off valve body 407, cut off lever assembly 408, hand off capping 409, hand off spring 410, hand off pull bar 411, hand off helps pull a cart 412, cut off lever sliding sleeve 413, cut off collision block 414, locking nut 415, cut off rotary head 416, cut off dwang 417, shaft block ring 418, O type circle K419, hole back-up ring 420, O type circle L421, dwang lining 422, cut off pulling sleeve 423, socket head screw 424, copper sheathing 425, cut off valve gap 426, bearing cap 427, bearing, 428, setting sleeve B429, adjusting screw 430, bearing pin 431, setting sleeve A432, cut off lower cover 433.
Embodiment
Below in conjunction with accompanying drawing 1-8, the present invention is described in detail, is clearly and completely described the technological scheme in the embodiment of the present invention, and obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, providing integrated cutting type pressure regulator to be applicable to city mesolow gas ductwork distributing system regulates applicable as pressure.Main structure comprises adjustment member 112, balance valve core parts 108, cut component 115 and valve body 105; Described adjustment member entirety is fixed on valve body 105 by hex head bolt 109, spring washer 110, described valve body 105 lower end is by hex head bolt 103, plain washer 104 fixed valve body capping 101, described valve body capping 101 arranges O type circle A102 with valve body 105 lower end, valve body 105 corresponding valve port 106 place is provided with O type circle B107, arranges O type circle C111 between described adjustment member 112 and valve body 105.
Adjustment member 112 comprises lower membrane cover 201, adjustment epithelium 202, large pallet 203, little pallet 204, sleeve 216, adjustable lever 218, by hex head bolt 223 between described lower membrane cover 201 and upper membrane cover 208, packing ring 224, hexagon nut 225 is fixed, in the cavity that lower membrane cover 201 and upper membrane cover 208 are formed, large pallet 203 is set, little pallet 204, diaphragm 202 is positioned at large pallet 203 times, with connection block 207 on lower membrane cover 201, upper membrane cover 208 arranges connecting base 213 by hexagon nut 209 spring washer 210, connecting base 213 is positioned on seat ring 211, by socket head screw 227 on upper membrane cover 208, spring washer 228 fixes described seat ring 211, described sleeve 216 is fixed by connecting base 213, sleeve 216 top is capping 217, adjustable lever 218 passes capping 217 and interts in sleeve 216, fixed plate 215 is provided with in sleeve 216, extension spring 214 upper end is by spring fastening screw trip bolt A219, lower end is fixed in sleeve 216 by spring fastening screw trip bolt B212, adjustable lever 218 is with general taper pin 220 and cotter pin 221, its lower end is built-in is provided with steel ball 229, extension spring 222 is arranged by spring seat 226, described spring seat 226 and adjustable lever 218 are for being threaded.
Described equalizing feature comprises balance valve pocket 330, balance diaphragm 321, balance film gland 324, valve rod 327, described balance film gland 324 is positioned at valve rod 327 upper end, fixed by socket head screw 323 between balance film pressing plate 322 and balance film connecting base 325, balance film connecting base 325 arranged outside has O type circle J326, balance film pressure pad 319 is provided with in balance film connecting base 325, balance diaphragm 321 is arranged on balance film pressure pad 319 by balance film gland 324, O type circle I320 is provided with between balance diaphragm 321 and balance film gland 324, valve stem casing 317 is positioned at outside valve rod 327, and be positioned at balance film connecting base 325 times, there is balance valve pocket 330 valve stem casing 317 outside, bearing housing A316 is provided with between described valve stem casing 317 and balance valve pocket 330, bearing housing B328 is provided with between valve stem casing 317 and valve rod 327, corresponding porose back-up ring 329 on bearing housing A316, balance valve pocket 330 outside is provided with and cuts off spring seat 314, cut off valve seat 310, cutting off spring 315 is arranged on outside balance valve pocket 330 by cutting off spring seat 314, O type circle G313 is also provided with between valve stem casing 317 and balance valve pocket 330, O type circle F311 is provided with between described cut-out valve seat 310 and balance valve pocket 330, both lower end parts are provided with circlip for shaft 309, cut off flap spring 312 to arrange by cutting off valve seat 310, the lower end of described valve rod 327 is provided with closely-pitched hexagon nut 301, plain cushion A302, plain cushion B303, flap nut 303, flap pressing plate A304, flap pressing plate B305, flap sealing gasket 306, flap sealing seat 307, arrange O type circle E308 between flap sealing seat 307 and valve rod 327, flap pressing plate 304 flap pressing plate 305 flap sealing gasket 306 is positioned at outside flap sealing seat 307.
Described cut component comprises to be cut off valve body 407, cut off valve rod 402, cuts off lever assembly 408, cuts off dwang 417, hand off and help pull a cart 412, cut off Returnning spring 405, described cut-out collision block 414 is positioned at the one end cutting off valve rod 402, and fixed by locking nut 415, cut off and regulate capping 403 to be arranged on cut-out valve body 407, ferrule fitting 401 is positioned at and cuts off on lower cover 433, cut off in valve body 407 to be provided with and cut off lever assembly 408, hand off capping 409 is arranged on to be cut off on valve body 407, hand off is helped pull a cart and 412 is positioned on hand off pull bar 411, hand off spring 410 is positioned at and cuts off capping 409, described cut-out rotary head 416 is positioned at and cuts off on dwang 417, dwang lining 422 is positioned at and cuts off dwang 417 outer end, shaft block ring 418 is positioned at the end of dwang lining 422, cut off between dwang 417 and dwang lining 422 and be provided with O type circle K419, cut off pulling sleeve 423 and cut-out valve gap 426 corresponding part is provided with copper sheathing 425, bearing pin 431 two ends are provided with bearing 428, setting sleeve A432 is set outside bearing pin 431, setting sleeve B429.
Integration cutting type pressure regulator, through optimal design and improvement, has unique advantage and performance advantage.
in the present invention,adjustment member 112 adopts secondary balance weight structure block structure, avoid the adjustment fluctuation that pressure surge brings, no matter how suction pressure fluctuates this product, regulate epithelium minor fluctuations in very little scope all the time, pressure regulates quite steady, degree of regulation improves greatly, and performance quite stable is reliable.Adjustable lever 218 adopts built-in ball type regulation structure, changing traditional face contact is point cantact, light and flexible when not only regulating, more overcomes and causes regulating valve stem end wear to produce corrosion because of the contact of long-term face, overcome the instability of adjustment and the drawback of Torque-adjusting increasing.
In the present invention, described equalizing feature 108 adopts balance epithelium structure, make regulation range broader, adopt built-in vent hole structure, (traditional design theory bottom balance film, arranges vent introducing pressurized gas directly exert pressure to balance film to make air-flow steadily enter balance film cavity of resorption by valve lever clearance, unstability because of air pressure causes balance film crack damage), change traditional straight-through vent directly to exert pressure to balance epithelium, avoid direct the generation with balance epithelium of air-flow wash away and cause balancing epithelium fracture failure, improve durability and the working life of balance epithelium, adopt universal structure flap, overcome the closedown caused because of machining error and assembly error poorly sealed and close error, improve product closing pressure grade and precision, closedown performance increases substantially.
In the present invention, cut component adopts built-in ball type to cut off structure, and changing traditional face contact is point cantact, light and flexible when not only cutting off, more overcome and cause the wearing and tearing of cut-off valve boom end to produce corrosion because of the contact of long-term face, overcome the instability of cut-out and cut off ineffective drawback.Cut component adopts large epithelium shutdown mechanism, and make its cut-out pressure precision more accurate, stable, action sensitivity also increases substantially simultaneously.
Adopt shutdown mechanism of manually helping pull a cart, change traditional manual gland structure, as long as make its hand off can cut off by auto-manual once drawing gently, operational torque reduces greatly.Adopt secondary spring to be affiliated to mechanism, spring diameter is 1.0mm, and operational torque is very little.Change the gas pressure that traditional being manually affiliated to needs to overcome the load of Regulation spring institute, operational torque is quite large, and it is very painstaking to cause manually being affiliated to, and often needs repeatedly to be affiliated to just can be achieved.
Integration cutting type pressure regulator structurally improves, performance show excellent, in the precision of voltage regulation, closing pressure precision, fluid capacity etc., all greatly surmount domestic traditional type product, the level that is in a leading position should have been said during this product is gone together at home.Refer to product performance test chart.
As can be seen from the above data, integrated cutting type pressure regulator of the present invention is in whole pressure range, outlet pressure is minor fluctuations between-0.2-0.15KPa all the time, and the precision of voltage regulation is between 5%-6%, and the current domestic traditional product precision of voltage regulation generally all fluctuates between 10%-15%.Meanwhile, RTZ-50/0.4NQ integration cutting type pressure regulator closing pressure also minor fluctuations between 0.1-0.3KPa, close precision between 3%-10%, and current domestic traditional product closedown precision generally all fluctuates between 15%-20%.Negotiability is also up to 1650, and whole data are equally beyond current domestic traditional product of the same type.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (1)
1. an integrated cutting type pressure regulator, being applicable to city mesolow gas ductwork distributing system regulates applicable as pressure, it is characterized in that: main structure comprises adjustment member (112), balance valve core parts (108), cut component (115) and valve body (105); Described adjustment member (112) entirety is fixed on valve body (105) by hex head bolt (109), spring washer (110), described valve body (105) lower end is by hex head bolt (103), plain washer (104), fixed valve body capping (101), described valve body capping (101) and valve body (105) lower end arrange O type circle A(102), valve body (105) corresponding valve port (106) place is provided with O type circle B(107), O type circle C(111 is set between described adjustment member (112) and valve body (105));
Adjustment member (112) comprises lower membrane cover (201), adjustment epithelium (202), large pallet (203), little pallet (204), sleeve (216), adjustable lever (218), by hex head bolt (223) between described lower membrane cover (201) and upper membrane cover (208), packing ring (224), hexagon nut (225) is fixed, in the cavity that lower membrane cover (201) and upper membrane cover (208) are formed, large pallet (203) is set, little pallet (204), under diaphragm (202) is positioned at large pallet (203), with connection block (207) on lower membrane cover (201), upper membrane cover (208) arranges connecting base (213) by hexagon nut (209) spring washer (210), connecting base (213) is positioned on seat ring (211), by socket head screw (227) on upper membrane cover (208), spring washer (228) fixes described seat ring (211), described sleeve (216) is fixed by connecting base (213), sleeve (216) top is capping (217), adjustable lever (218) is through capping (217) and intert in sleeve (216), fixed plate (215) is provided with in sleeve (216), extension spring (214) upper end is by spring fastening screw trip bolt A(219), lower end is by spring fastening screw trip bolt B(212) be fixed in sleeve (216), adjustable lever (218) is with general taper pin (220) and cotter pin (221), its lower end is built-in is provided with steel ball (229), extension spring (222) is arranged by spring seat (226), described spring seat (226) and adjustable lever (218) are for being threaded,
Described balance valve core parts (108) comprise balance valve pocket (330), balance diaphragm (321), balance film gland (324), valve rod (327), described balance film gland (324) is positioned at valve rod (327) upper end, fixed by socket head screw (323) between balance film pressing plate (322) and balance film connecting base (325), balance film connecting base (325) arranged outside has O type circle J(326), balance film pressure pad (319) is provided with in balance film connecting base (325), balance diaphragm (321) is arranged on balance film pressure pad (319) by balance film gland (324), O type circle I(320 is provided with) between balance diaphragm (321) and balance film gland (324), valve stem casing (317) is positioned at valve rod (327) outward, and under being positioned at balance film connecting base (325), there is balance valve pocket (330) valve stem casing (317) outside, bearing housing A(316 is provided with) between described valve stem casing (317) and balance valve pocket (330), bearing housing B(328 is provided with) between valve stem casing (317) and valve rod (327), bearing housing A(316) upper corresponding porose back-up ring (329), balance valve pocket (330) outside is provided with and cuts off spring seat (314), cut off valve seat (310), cut off spring (315) and be arranged on balance valve pocket (330) outward by cutting off spring seat (314), O type circle G(313 is also provided with) between valve stem casing (317) and balance valve pocket (330), O type circle F(311 is provided with) between described cut-out valve seat (310) and balance valve pocket (330), both lower end parts are provided with circlip for shaft (309), cut off flap spring (312) to arrange by cutting off valve seat (310), the lower end of described valve rod (327) is provided with closely-pitched hexagon nut (301), plain cushion A(302), plain cushion B(303), flap nut (303), flap pressing plate A(304), flap pressing plate B(305), flap sealing gasket (306), flap sealing seat (307), O type circle E(308 is set between flap sealing seat (307) and valve rod (327)), flap pressing plate A(304), flap pressing plate B(305), flap sealing gasket (306) is positioned at flap sealing seat (307) outward,
Described cut component (115) comprise cut off valve body (407), cut off valve rod (402), cut off lever assembly (408), cut off dwang (417), hand off helps pull a cart (412), cuts off Returnning spring (405), described cut-out collision block (414) is positioned at the one end cutting off valve rod (402), and fixed by locking nut (415), cut off and regulate capping (403) to be arranged in cut-out valve body (407), ferrule fitting (401) is positioned at and cuts off on lower cover (433), cut off in valve body (407) to be provided with and cut off lever assembly (408), hand off capping (409) is arranged on to be cut off on valve body (407), hand off is helped pull a cart (412) is positioned on hand off pull bar (411), hand off spring (410) is positioned at and cuts off capping (409), described cut-out rotary head (416) is positioned at cuts off on dwang (417), dwang lining (422) is positioned at and cuts off dwang (417) outer end, shaft block ring (418) is positioned at the end of dwang lining (422), cut off between dwang (417) and dwang lining (422) and be provided with O type circle K(419), cut off pulling sleeve (423) and cut-out valve gap (426) corresponding part is provided with copper sheathing (425), bearing pin (431) two ends are provided with bearing (428), bearing pin arranges setting sleeve A(432 outside (431)), setting sleeve B(429).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310128769.7A CN103174858B (en) | 2013-04-15 | 2013-04-15 | Integration cutting type pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310128769.7A CN103174858B (en) | 2013-04-15 | 2013-04-15 | Integration cutting type pressure regulator |
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| Publication Number | Publication Date |
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| CN103174858A CN103174858A (en) | 2013-06-26 |
| CN103174858B true CN103174858B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310128769.7A Expired - Fee Related CN103174858B (en) | 2013-04-15 | 2013-04-15 | Integration cutting type pressure regulator |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968119A (en) * | 2014-04-21 | 2014-08-06 | 中国航空工业集团公司沈阳空气动力研究所 | Vacuum pressure regulating valve |
| 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 |
| CN105909858B (en) * | 2016-06-30 | 2019-04-30 | 纽威石油设备（苏州）有限公司 | A kind of pneumatic diaphragm actuator and safety valve |
| CN106402447A (en) * | 2016-11-03 | 2017-02-15 | 海宁市水享净水设备有限公司 | Pressure reducing valve device |
| CN109827002B (en) * | 2019-01-29 | 2024-01-23 | 国家电力投资集团有限公司 | Passive valve system and nuclear reactor |
| CN112856238B (en) * | 2020-12-21 | 2022-01-25 | 西安交通大学 | Mechanically-driven continuous impact pressure wave generator and pipeline abnormal state detection device based on same |
| CN112747155B (en) * | 2020-12-25 | 2022-04-01 | 江苏盛伟燃气科技有限公司 | A commander for gas pressure regulator |
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|---|---|---|---|---|
| US3662779A (en) * | 1971-01-13 | 1972-05-16 | Johnson Service Co | Bleed type fluid pressure control apparatus and diaphragm unit therefor |
| CN1710308A (en) * | 2005-07-01 | 2005-12-21 | 白龙山 | Pneumatic dual-diaphragm actuating mechanism |
| CN201310754Y (en) * | 2008-12-17 | 2009-09-16 | 袁勇 | Hyper-pressure cut-off pressure regulator |
| CN201844083U (en) * | 2010-11-08 | 2011-05-25 | 乐山川天燃气输配设备有限公司 | Pressure regulator with function of automatic cutout upon excess pressure |
| CN203258133U (en) * | 2013-04-15 | 2013-10-30 | 四川嘉星燃气设备制造有限公司 | Integrated cutting-type pressure regulator |
-
2013
- 2013-04-15 CN CN201310128769.7A patent/CN103174858B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662779A (en) * | 1971-01-13 | 1972-05-16 | Johnson Service Co | Bleed type fluid pressure control apparatus and diaphragm unit therefor |
| CN1710308A (en) * | 2005-07-01 | 2005-12-21 | 白龙山 | Pneumatic dual-diaphragm actuating mechanism |
| CN201310754Y (en) * | 2008-12-17 | 2009-09-16 | 袁勇 | Hyper-pressure cut-off pressure regulator |
| CN201844083U (en) * | 2010-11-08 | 2011-05-25 | 乐山川天燃气输配设备有限公司 | Pressure regulator with function of automatic cutout upon excess pressure |
| CN203258133U (en) * | 2013-04-15 | 2013-10-30 | 四川嘉星燃气设备制造有限公司 | Integrated cutting-type pressure regulator |
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| CN103174858A (en) | 2013-06-26 |
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