CN105402480A - Pressure relief valve - Google Patents
Pressure relief valve Download PDFInfo
- Publication number
- CN105402480A CN105402480A CN201510901684.7A CN201510901684A CN105402480A CN 105402480 A CN105402480 A CN 105402480A CN 201510901684 A CN201510901684 A CN 201510901684A CN 105402480 A CN105402480 A CN 105402480A
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- spring
- pressure relief
- relief valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a pressure relief valve. The pressure relief valve comprises a valve seat and a valve shell with the two open ends. One open end of the valve shell is installed on the valve seat, a cover is arranged on the top of the part, inside the valve shell, of the valve seat, a sign post is fixed to the center of the cover, and the other end of the sign post is a free end and extends out of the other open end of the valve shell. A spring base is installed on the sign post in a sleeving mode, a pressure sensor is arranged at the top of the spring base and is used for emitting continuous digital signals and transmitting the digital signals to the background, and the pressure sensor and the spring base are prevented from moving axially along the sign post through a pressure regulation plate connected to the inner wall of the valve shell. Springs are installed at the part, between the spring base and the cover, of the sign post in a sleeving mode and are compressed. According to the pressure relief valve, the pressure sensor arranged at the tops of the springs can monitor the pressure values of the springs inside the pressure relief valve in real time, emit the continuous digital signals of the pressure values and transmit the digital signals to the background for monitoring, and therefore the reliability and the accuracy of the action of the pressure relief valve can be guaranteed.
Description
Technical field:
The present invention relates to a kind of pressure relief valve, for electrical equipments such as oil filled transformers, release oil tank of transformer internal over pressure power.
Background technique:
Along with the development of intelligent grid; requirement for transformer and assembly operating is more and more higher; therefore fault-free; the transformer device of intelligent control develops in the future and developing direction; pressure relief valve is the important protective gear of transformer, and the intelligent pressure relief valve tool of Study and Development is of great significance.Existing pressure relief valve only knows when action that oil tank of transformer force value exceeds standard, application number: 201020286712.1 pressure relief valves, belong to transformer part.It comprises valve seat, pressure transmitter or claims pressure transducer, electrical apparatus element and circuit board, spring, electrical appliance kit, spring bearer plate, marker post etc.; Wherein, valve seat is equipped with pressure transmitter, this pressure transmitter alone or by electrical apparatus element and circuit board, converts inside transformer force value to electronic die analog quantity; What this pressure transducer exported is the force value of a part on earth pressure release valve base, can only measure, but can not verify, detect in real time the working state of pressure relief valve and validity thereof oil pressure.
Summary of the invention:
The object of the invention is to for the deficiencies in the prior art, provide a kind of pressure relief valve.
For achieving the above object, the present invention adopts following technological scheme to realize:
A kind of pressure relief valve, comprise the valve chest of valve seat and both ends open, an opening end of valve chest is arranged on valve seat, valve seat top in valve chest is provided with lid, the center of lid is provided with marker post, the other end of marker post is free end and extend out to outside another opening end of valve chest, marker post is set with spring seat, the top of spring seat is provided with pressure transducer, pressure transducer is used for sending continuous print digital signal and is delivered to backstage, pressure transducer and spring seat are moved axially along marker post by the pressure regulation dish limiter pressure sensor and spring seat being connected to valve chest inwall, marker post between spring seat and lid is set with spring, and spring is in compressive state, during work, by valve seat, pressure relief valve is connected with oil tank of transformer body, when inside transformer has an accident, oil tank of transformer internal oil pressure sharply raises, reach earth pressure release valve opening pressure value, pressure relief valve is opened, cover is upspring, drive marker post by jack-up, spring continues to be compressed, transformer oil leaks, pressure in oil tank of transformer reduces, when pressure drops to the closing pressure value of pressure relief valve, spring and lid reset, pressure relief valve is closed, make to keep malleation in oil tank of transformer, marker post is trapped on the position after unlatching, manually reseting mark bar.
The present invention further improves and is, pressure regulation dish is threaded connection on valve chest inwall, and carrys out the tension force of Regulation spring by rotating pressure regulation dish.
The present invention further improves and is, the sidewall of valve chest also offers oil outlet, and the position of oil outlet is just to the spring that marker post is set with.
The present invention further improves and is, another open end of valve chest is also provided with valve gap, the free end of marker post extend out to outside valve gap, and is provided with the mark cap be connected with valve gap at the free end of marker post, and mark cap is connected with the electrical switch be arranged in valve chest.
The present invention further improves and is, mark cap is also provided with signal box, and signal box inside is also provided with external 61850 communication interface.
The present invention further improves and is, the bottom of spring seat offers step groove, and the step groove of spring seat and lid between marker post on be set with two springs, be respectively the first spring and the second spring that arrange from the inside to the outside.
Relative to prior art, the present invention has following advantage:
Pressure relief valve provided by the invention, by arranging pressure transducer at spring top, Real-Time Monitoring is carried out to its internal work spring pressure value, and its force value is sent continuous print digital data transmission monitor to backstage, ensure reliability and the accuracy of earth pressure release valve events, prevent pressure relief valve misoperation or action deviation, prevent the potential safety hazard that spring fatigue work brings, major accident is avoided to occur, can according to the digital signal exported in conjunction with transformer oil pressure, the running state of transformer is analyzed, send pre-alarm signal, meet the demand of intelligent transformer process visualization simultaneously.
Further, at the spring seat top setting pressure sensor of this pressure relief valve, install pressure regulation dish on the top of pressure transducer, pressure regulation dish is connected with valve chest by screw thread, so just can carry out the tension force of Regulation spring according to actual needs by rotating pressure regulation dish.The working pressure of pressure transducer Real-Time Monitoring spring.
Further, in the signal box inside of this pressure relief valve, external 61850 communication interface is installed, meets the communication need of user.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of pressure relief valve of the present invention.
Fig. 2 is the partial enlarged drawing of Fig. 1.
In figure: 1 is valve seat, 2 is lid, and 3 is the first spring, and 4 is the second spring, and 5 is spring seat, and 6 is valve chest, and 7 is mark cap, and 8 is marker post, and 9 is electrical switch, and 10 is pressure regulation dish, and 11 is pressure transducer, and 12 is signal box.
Embodiment:
Below in conjunction with accompanying drawing, novel pressure relief valve of the present invention is described in detail:
Refer to shown in Fig. 1 and Fig. 2, pressure relief valve provided by the invention, by valve seat 1, pressure relief valve is connected with oil tank of transformer body.When transformer runs, the cavity of valve seat 1 communicates with oil tank of transformer inside.By the first spring 3, second spring 4 by oil tank of transformer oil seal bottom lid 2, when oil-filled electric transformer inside has an accident, oil tank of transformer internal oil pressure sharply raises, and reach earth pressure release valve opening pressure value, pressure relief valve is opened rapidly in 2ms, lid 2 is upspring, drive marker post 8, mark cap 7 by jack-up, meanwhile electrical switch 9 action sends alarm signal, and the first spring 3, second spring 4 compresses, transformer oil leaks, and the pressure in oil tank of transformer reduces very soon.When pressure drops to the closing pressure value of pressure relief valve, the first spring 3, second spring 4, lid 2 reset, and pressure relief valve is reliably closed again, makes forever to keep malleation in oil tank of transformer, effectively prevents outside air, aqueous vapor and other impurity from entering fuel tank.Marker post is still trapped on the position after unlatching, must by manually resetting.
The present invention arranges at the first spring 3, second spring 4 top of pressure relief valve inside and puts spring seat 5, and at spring seat 5 top setting pressure sensor 11, install pressure regulation dish 10 on the top of pressure transducer 11, pressure regulation dish 10 is connected with valve chest 6 by screw thread.By spring seat 5, the working pressure of the first spring 3, second spring 4 is delivered on pressure transducer 11, pressure transducer 11 sends continuous print digital signal and is delivered to backstage, in signal box 12 inside of this pressure relief valve, external 61850 communication interface is installed, meets the communication need of user.The pressure on the number signal transferred out by sensor can carry out Function detection to pressure relief valve.
The foregoing is only one embodiment of the present invention, it not whole or unique mode of execution, the conversion of those of ordinary skill in the art by reading specification of the present invention to any equivalence that technological scheme of the present invention (especially monitoring pressure relief valve working spring force value) is taked, is claim of the present invention and contains.
Claims (6)
1. a pressure relief valve, it is characterized in that, comprise the valve chest (6) of valve seat (1) and both ends open, an opening end of valve chest (6) is arranged on valve seat (1), valve seat (1) top in valve chest (6) is provided with lid (2), the center of lid (2) is provided with marker post (8), the other end of marker post (8) is free end and extend out to outside another opening end of valve chest (6), marker post (8) is set with spring seat (5), the top of spring seat (5) is provided with pressure transducer (11), pressure transducer (11) is delivered to backstage for sending continuous print digital signal, pressure transducer (11) and spring seat (5) are moved axially along marker post (8) by pressure regulation dish (10) limiter pressure sensor (11) and spring seat (5) being connected to valve chest (6) inwall, marker post (8) between spring seat (5) and lid (2) is set with spring, and spring is in compressive state, during work, by valve seat (1), pressure relief valve is connected with oil tank of transformer body, when inside transformer has an accident, oil tank of transformer internal oil pressure sharply raises, reach earth pressure release valve opening pressure value, pressure relief valve is opened, lid (2) is upspring, drive marker post (8) by jack-up, spring continues to be compressed, transformer oil leaks, pressure in oil tank of transformer reduces, when pressure drops to the closing pressure value of pressure relief valve, spring and lid (2) reset, pressure relief valve is closed, make to keep malleation in oil tank of transformer, marker post (8) is trapped on the position after unlatching, manually reseting mark bar (8).
2. a kind of pressure relief valve according to claim 1, is characterized in that, pressure regulation dish (10) is threaded connection on valve chest (6) inwall, and carrys out the tension force of Regulation spring by rotating pressure regulation dish (10).
3. a kind of pressure relief valve according to claim 1, is characterized in that, the sidewall of valve chest (6) also offers oil outlet, and the position of oil outlet is just to the spring of the upper suit of marker post (8).
4. a kind of pressure relief valve according to claim 1, it is characterized in that, another open end of valve chest (6) is also provided with valve gap, the free end of marker post (8) extend out to outside valve gap, and the mark cap (7) be connected with valve gap is provided with at the free end of marker post (8), mark cap (7) is connected with the electrical switch (9) be arranged in valve chest (6).
5. a kind of pressure relief valve according to claim 4, is characterized in that, mark cap (7) is also provided with signal box (12), and signal box (12) inside is also provided with external 61850 communication interface.
6. a kind of pressure relief valve according to claim 1, it is characterized in that, the bottom of spring seat (5) offers step groove, and marker post (8) between the step groove of spring seat (5) and lid (2) is set with two springs, be respectively the first spring (3) and the second spring (4) that arrange from the inside to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510901684.7A CN105402480A (en) | 2015-12-08 | 2015-12-08 | Pressure relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510901684.7A CN105402480A (en) | 2015-12-08 | 2015-12-08 | Pressure relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402480A true CN105402480A (en) | 2016-03-16 |
Family
ID=55468142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510901684.7A Pending CN105402480A (en) | 2015-12-08 | 2015-12-08 | Pressure relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402480A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568076A (en) * | 2016-10-18 | 2017-04-19 | 天津市华诺盛源科技有限公司 | Boiler protection control system |
| CN106568075A (en) * | 2016-10-18 | 2017-04-19 | 天津市华诺盛源科技有限公司 | Safety control equipment for boiler |
| CN110926537A (en) * | 2019-12-08 | 2020-03-27 | 山东电工电气集团智能电气有限公司 | Multifunctional oil-immersed transformer measuring device |
| CN111249542A (en) * | 2020-01-20 | 2020-06-09 | 青岛市市北区蓝天心理研究所 | Drainage device for surgical operation |
| CN112628434A (en) * | 2020-12-04 | 2021-04-09 | 国网山东省电力公司临沂供电公司 | Intelligent pressure release valve and use method |
| CN113324078A (en) * | 2021-04-20 | 2021-08-31 | 江苏富鑫机械制造有限公司 | Novel self-checking formula relief valve |
| CN113909756A (en) * | 2021-11-17 | 2022-01-11 | 浙江炊大王炊具有限公司 | Welding device for cooking utensils |
| CN113909755A (en) * | 2021-11-17 | 2022-01-11 | 浙江炊大王炊具有限公司 | High-performance cooker production equipment |
| CN114719064A (en) * | 2022-04-12 | 2022-07-08 | 国家电网有限公司 | Oil-immersed transformer release valve capable of preventing oil oxidation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004270905A (en) * | 2003-03-12 | 2004-09-30 | Yuriko Nagashima | Pressure opening/closing valve with pressure sensor |
| CN2805038Y (en) * | 2005-04-19 | 2006-08-09 | 杨海群 | Over-pressure releasing valve for transformer |
| CN201215201Y (en) * | 2008-06-27 | 2009-04-01 | 沈阳沈变所电气科技有限公司 | Pressure release valve capable of distance data transmission |
| CN201973308U (en) * | 2011-01-25 | 2011-09-14 | 中国西电电气股份有限公司 | Pressure relief valve for transformer |
| CN204239839U (en) * | 2014-11-25 | 2015-04-01 | 浙江众博矿业机械有限公司 | Warning safe valve |
-
2015
- 2015-12-08 CN CN201510901684.7A patent/CN105402480A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004270905A (en) * | 2003-03-12 | 2004-09-30 | Yuriko Nagashima | Pressure opening/closing valve with pressure sensor |
| CN2805038Y (en) * | 2005-04-19 | 2006-08-09 | 杨海群 | Over-pressure releasing valve for transformer |
| CN201215201Y (en) * | 2008-06-27 | 2009-04-01 | 沈阳沈变所电气科技有限公司 | Pressure release valve capable of distance data transmission |
| CN201973308U (en) * | 2011-01-25 | 2011-09-14 | 中国西电电气股份有限公司 | Pressure relief valve for transformer |
| CN204239839U (en) * | 2014-11-25 | 2015-04-01 | 浙江众博矿业机械有限公司 | Warning safe valve |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568076A (en) * | 2016-10-18 | 2017-04-19 | 天津市华诺盛源科技有限公司 | Boiler protection control system |
| CN106568075A (en) * | 2016-10-18 | 2017-04-19 | 天津市华诺盛源科技有限公司 | Safety control equipment for boiler |
| CN106568076B (en) * | 2016-10-18 | 2019-04-12 | 天津市华诺盛源科技有限公司 | A kind of boiler protection control system |
| CN110926537A (en) * | 2019-12-08 | 2020-03-27 | 山东电工电气集团智能电气有限公司 | Multifunctional oil-immersed transformer measuring device |
| CN111249542A (en) * | 2020-01-20 | 2020-06-09 | 青岛市市北区蓝天心理研究所 | Drainage device for surgical operation |
| CN112628434A (en) * | 2020-12-04 | 2021-04-09 | 国网山东省电力公司临沂供电公司 | Intelligent pressure release valve and use method |
| CN113324078A (en) * | 2021-04-20 | 2021-08-31 | 江苏富鑫机械制造有限公司 | Novel self-checking formula relief valve |
| CN113909756A (en) * | 2021-11-17 | 2022-01-11 | 浙江炊大王炊具有限公司 | Welding device for cooking utensils |
| CN113909755A (en) * | 2021-11-17 | 2022-01-11 | 浙江炊大王炊具有限公司 | High-performance cooker production equipment |
| CN113909755B (en) * | 2021-11-17 | 2022-05-27 | 浙江炊大王炊具有限公司 | High-performance cooker production equipment |
| CN114719064A (en) * | 2022-04-12 | 2022-07-08 | 国家电网有限公司 | Oil-immersed transformer release valve capable of preventing oil oxidation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |
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| WD01 | Invention patent application deemed withdrawn after publication |