CN2455983Y - Ultrahigh and low pressure cut-off valve for straight pull type pressure regulator - Google Patents
Ultrahigh and low pressure cut-off valve for straight pull type pressure regulator Download PDFInfo
- Publication number
- CN2455983Y CN2455983Y CN 00263923 CN00263923U CN2455983Y CN 2455983 Y CN2455983 Y CN 2455983Y CN 00263923 CN00263923 CN 00263923 CN 00263923 U CN00263923 U CN 00263923U CN 2455983 Y CN2455983 Y CN 2455983Y
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- China
- Prior art keywords
- cut
- low pressure
- valve
- pressure
- diaphragm
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- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 210000004894 snout Anatomy 0.000 claims description 7
- 239000012530 fluid Substances 0.000 abstract description 8
- 230000001276 controlling effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Control Of Fluid Pressure (AREA)
Abstract
An ultrahigh-low pressure cut-off valve for a straight pull type pressure regulator mainly comprises a cut-off valve core 3 with a cut-off spring 4 arranged in an inlet cavity 2 of a valve body, a diaphragm assembly consisting of a diaphragm 8 and a diaphragm seat 15, a high-low pressure adjusting mechanism, a pull rod 6 connected with the cut-off valve core 3, a steel ball 9 and the like, wherein the pull rod respectively penetrates through the diaphragm seat and the high-low pressure adjusting mechanism. When the valve works, when the fluid pressure in the pressure regulator is ultrahigh or ultralow, the diaphragm assembly moves rightwards or leftwards under the action of the high-low pressure adjusting mechanism, so that the pull rod drives the cut-off valve core to move leftwards under the action of the steel ball, and the valve port is closed.
Description
The utility model relates to a kind of directly pulling type pressure governor super high and super low pressure cut-off valve, belongs to the pressure control technical field.
A kind of valve that the super high and super low pressure cut-off valve is meant when controlled pressure surpasses the upper limit (superelevation) of a certain setting range or can cuts off the sprue inlet fluid automatically when being lower than the lower limit (ultralow) of a certain setting range; existing pressure governor does not generally have tripping protection; in easily generation accident of some specific occasions, as the occasion of combustion gas pressure regulation occasion or downstream connection high precision apparatus.The pressure governor that the band tripping protection is also arranged, but because non-being totally independent of outside the pressure governor structure, whether the existence of ultrahigh pressure or super-low voltage tripping protection can not be carried out is freely selected, and has influenced the Applicable scope of pressure governor.
The purpose of this utility model provides a kind of reasonable in design, compact structure, and it is high and be totally independent of directly pulling type pressure governor super high and super low pressure cut-off valve outside the pressure governor structure to cut off precision.
The utility model is directly pulling type pressure governor super high and super low pressure cut-off valve, comprise the cut-out spool that places band cut-out spring in the valve body snout cavity, place the diaphragm unit that constitutes by diaphragm and diaphragm seat in the valve body, place the high low pressure controlling mechanism of diaphragm seat one end, place the diaphragm seat the other end and cut off the pull bar that spool links to each other, place the steel ball in the diaphragm seat, pull bar passes diaphragm seat and high low pressure controlling mechanism respectively.During work,,, make diaphragm unit or be moved to the left to the right, thereby the effect by steel ball drives pull bar to be cut off spool and is moved to the left close port by the effect of high low pressure controlling mechanism when the hydrodynamic pressure superelevation in the pressure governor or when ultralow.
Described high low pressure controlling mechanism can be made of the low pressure setting spring that the band high pressure is set the high pressure setting spring of screw and is with low pressure to set screw.
Described pull bar middle part also can be provided with groove.Also can be provided with spacious mouthful of spacious mouthful of left side and right side in the described diaphragm seat.
The utility model is reasonable in design; compact structure; can surpass a certain setting range upper limit in the controlled pressure of regulator inner fluid or be lower than the inlet fluid of cutting off the pressure governor sprue under a certain setting range in limited time automatically; it is higher that it cuts off precision; general error is no more than ± and 5%; the utility model is totally independent of outside the pressure governor structure; can whether select existence of the present utility model arbitrarily to the needs of ultrahigh pressure or super-low voltage tripping protection according to pressure governor, can be widely used in combustion gas pressure regulation and hydraulic pressure or pneumatic control field.
Accompanying drawing has provided overall structure sectional view of the present utility model.
Below in conjunction with embodiment the utility model is further described:
The utility model is mainly by valve port 1, snout cavity 2, place the cut-out spool 3 of band cut-out spring 4 in the snout cavity 2, place the diaphragm unit that constitutes by diaphragm 8 and diaphragm seat 15 in the valve body 16, place the high low pressure controlling mechanism of diaphragm seat 15 1 ends, place diaphragm seat 15 the other ends and cut off the pull bar 6 that spool 3 links to each other, place steel ball 9 formations such as grade in the diaphragm seat 15.Top, valve body 16 right side is provided with block screw 14, and pull bar 6 passes diaphragm seat 15 and high low pressure controlling mechanism respectively until top, valve body right side, and pull bar 6 middle parts are provided with groove 6a, and steel ball 9 is by ball retainer 5 supportings.Described high low pressure controlling mechanism is set screw 12 by high pressure setting spring 10 and high pressure, and low pressure setting spring 11 and low pressure are set screw 13 and constituted.
Diaphragm unit is formed by connecting by diaphragm 8 and diaphragm seat 15, and its connection is firmly and seals.Diaphragm 8 relies on cramping supporting and the sealing between the valve body, and the left side of diaphragm 8 is signal pressure chamber 7, and the pressure in signal pressure chamber 7 is transmitted by controlled pressure chamber, downstream by certain transmission channel.Snout cavity 2, signal pressure chamber 7 reliably separate with seal ring each other with the external world.The place, both sides that is positioned at steel ball 9 in the diaphragm seat 15 is provided with spacious mouthful 9a in left side and the spacious mouthful 9b in right side.
During proper functioning, cut-off valve is being opened, fluid enters into pressure governor by valve port 1 after entering into snout cavity 2 by arrow shown in the accompanying drawing again, and through entering into the controlled pressure chamber after the pressure governor pressure regulation, the pressure in controlled pressure chamber is transferred to signal pressure chamber 7 by special modality.
When the pressure in signal pressure chamber 7 raises and surpass the CLV ceiling limit value of setting, can make diaphragm 8 deformation displacement to the right, the resistance that the promotion diaphragm unit overcomes high pressure setting spring 10 moves right, make steel ball 9 fall into the spacious mouthful 9a in left side of diaphragm seat 15, decontrol pull bar 6, make pull bar 6 freedom, spring 4 promotions this moment are cut off spool 3 and are moved to the left, prop up and close port 1, thereby cut off fluid.
When the pressure in signal pressure chamber 7 descended and is lower than the lower limit of setting, low pressure setting spring 11 can promote diaphragm unit to left movement, made steel ball 9 fall into the spacious mouthful 9b in right side of diaphragm seat 15, made pull bar 6 freedom, cut off fluids through above-mentioned a series of motions again.
The upper and lower bound value of excess pressure cutout can be set the pretightening force of screw 12 adjusting high pressure setting springs 10 by high pressure respectively and set by the pretightening force that low pressure setting screw 13 is regulated low pressure setting springs 11.
Cut-off valve must manually could open after triggering and cutting out again, during unlatching, at first back out the block screw 14 at top, valve body 16 right side, turn around to be screwed in the head threads of pull bar 6, spur pull bar 6 then and move right certain position, make steel ball 9 fall into groove 6a on the pull bar 6, at this moment, pull bar 6 drives cut-out spool 3 and moves right, fluid enters pressure governor by valve port 1 and snout cavity 2, pressure regulation makes the pressure stability in controlled pressure chamber, downstream in a certain stationary value through pressure governor, this pressure is delivered in the signal pressure chamber 7 by specific transmission pipeline, diaphragm unit 8 moves to special position and blocks steel ball 9 under the comprehensive function of the spring force of high pressure setting spring 10 and low pressure setting spring 11, thereby lock whole shutdown mechanism at signal pressure at this moment.
Claims (4)
1. directly pulling type pressure governor super high and super low pressure cut-off valve, it is characterized in that comprising the cut-out spool (3) that places band cut-out spring (4) in the valve body snout cavity (2), place the diaphragm unit that constitutes by diaphragm (8) and diaphragm seat (15) in the valve body, place the high low pressure controlling mechanism of diaphragm seat (15) one ends, place diaphragm seat (15) the other end and cut off the pull bar (6) that spool (3) links to each other, place the steel ball (9) in the diaphragm seat (15), pull bar (6) passes diaphragm seat (15) and high low pressure controlling mechanism respectively.
2. by the described directly pulling type pressure governor super high and super low pressure cut-off valve of claim 1, it is characterized in that described high low pressure controlling mechanism can be made of the low pressure setting spring (11) that the band high pressure is set the high pressure setting spring (10) of screw (12) and is with low pressure to set screw (13).
3. by claim 1 or 2 described directly pulling type pressure governor super high and super low pressure cut-off valves, it is characterized in that described pull bar (6) middle part also can be provided with groove (6a).
4. by claim 1 or 2 described directly pulling type pressure governor super high and super low pressure cut-off valves, it is characterized in that also can being provided with in the described diaphragm seat (15) left side spacious mouthful (9a) and right side spacious mouthful (9b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00263923 CN2455983Y (en) | 2000-11-29 | 2000-11-29 | Ultrahigh and low pressure cut-off valve for straight pull type pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00263923 CN2455983Y (en) | 2000-11-29 | 2000-11-29 | Ultrahigh and low pressure cut-off valve for straight pull type pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2455983Y true CN2455983Y (en) | 2001-10-24 |
Family
ID=33618770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00263923 Expired - Fee Related CN2455983Y (en) | 2000-11-29 | 2000-11-29 | Ultrahigh and low pressure cut-off valve for straight pull type pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2455983Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410601C (en) * | 2002-12-05 | 2008-08-13 | 周纪昌 | Pressure regulation relief valve for air conditioner |
| CN102734513A (en) * | 2011-04-15 | 2012-10-17 | 艾默生过程管理调节技术公司 | Fail safe retaining plug assembly for a slam-shut safety device |
| CN102954257A (en) * | 2012-11-30 | 2013-03-06 | 常州天旭机电制造有限公司 | Voltage regulation protection valve |
| 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 |
| CN106122547A (en) * | 2016-08-30 | 2016-11-16 | 徐燕 | A kind of venting of dust explosion securing member |
| CN108679291A (en) * | 2018-06-12 | 2018-10-19 | 浙江苍南仪表集团东星能源科技有限公司 | Gas pressure regulator, governor |
| CN108869815A (en) * | 2018-06-12 | 2018-11-23 | 浙江苍南仪表集团东星能源科技有限公司 | Gas blocking device |
-
2000
- 2000-11-29 CN CN 00263923 patent/CN2455983Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410601C (en) * | 2002-12-05 | 2008-08-13 | 周纪昌 | Pressure regulation relief valve for air conditioner |
| CN102734513A (en) * | 2011-04-15 | 2012-10-17 | 艾默生过程管理调节技术公司 | Fail safe retaining plug assembly for a slam-shut safety device |
| CN102734513B (en) * | 2011-04-15 | 2017-05-31 | 艾默生过程管理调节技术公司 | Failure safe for closing safety means soon keeps plug assembly |
| CN102954257A (en) * | 2012-11-30 | 2013-03-06 | 常州天旭机电制造有限公司 | Voltage regulation protection valve |
| 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 |
| CN106122547A (en) * | 2016-08-30 | 2016-11-16 | 徐燕 | A kind of venting of dust explosion securing member |
| CN106122547B (en) * | 2016-08-30 | 2018-08-17 | 徐燕 | A kind of venting of dust explosion fastener |
| CN108679291A (en) * | 2018-06-12 | 2018-10-19 | 浙江苍南仪表集团东星能源科技有限公司 | Gas pressure regulator, governor |
| CN108869815A (en) * | 2018-06-12 | 2018-11-23 | 浙江苍南仪表集团东星能源科技有限公司 | Gas blocking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Free format text: NO CO-PATENTEE; FORMER NAME OR ADDRESS: XINYI PNEUMATIC INDUSTRY CO., LTD., ZHEJIANG PROV. Owner name: ZHEJIANG CHUNHUI INTELLIGENT CONTROL CO., LTD. Free format text: FORMER NAME OR ADDRESS: ZHEJIANG PROV CHUNHUI GROUP CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Zhejiang Chunhui Intelligent Control Co., Ltd. Co-patentee before: Xinyi Pneumatic Industry Co., Ltd., Zhejiang Prov. Patentee before: Zhejiang Chunhui Group Co., Ltd. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |