CN102865393A - Automatic cutoff valve for pipe gas - Google Patents
Automatic cutoff valve for pipe gas Download PDFInfo
- Publication number
- CN102865393A CN102865393A CN2011101965732A CN201110196573A CN102865393A CN 102865393 A CN102865393 A CN 102865393A CN 2011101965732 A CN2011101965732 A CN 2011101965732A CN 201110196573 A CN201110196573 A CN 201110196573A CN 102865393 A CN102865393 A CN 102865393A
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- China
- Prior art keywords
- gas
- cutoff
- diaphragm
- pipeline gas
- permanent magnet
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Abstract
The invention relates to a safety valve capable of being automatically cut off under situations of overpressure, underpressure and excessive flow leakage of pipe gas. The safety valve is characterized in that an overpressure protection part consisting of a joining iron rod, a permanent magnet and a pull ring is arranged in a shell; a forward cutoff system consisting of a cutoff nozzle, a cutoff rod, a cutoff rubber ring, a cutoff spring and a spring cover plate is arranged at a gas inlet; when the pressure of gas is ultrahigh, the pressure of gas in the shell rises, a diaphragm is pushed upwards, the joining iron rod and the permanent magnet are automatically separated from each other at the moment when the tension force of the diaphragm is larger than the joining force between the joining iron rod and the permanent magnet, the forward cutoff system is cut off to realize overpressure automatic cutoff for protection, and after the gas pressure is restored to be normal, the joining iron rod and the permanent magnet can be automatically joined and merged and the safety valve is restored to be normal; and when gas underpressure or excessive flow leakage occurs, the pressure of the gas in the shell drops sharply, the forward cutoff system is cut off and the automatic cutoff for protection under the situation of gas underpressure and excessive flow leakage is realized. The safety valve has the advantages of simple structure, good performance and high safety and durability.
Description
Technical field: the present invention relates to a kind of automatic safety device that prevents that the accidents such as pipeline gas superpressure, under-voltage and sebific duct come off, break from causing the super flow of combustion gas to be revealed, patented technology of the present invention can be applicable to make pipeline gas special safety valve series product.When pipeline gas generation pressure regulation is out of control when superpressure or under-voltage and super flow occurring and leaking contingency, the device autoshutdown cuts off source of the gas, prevents the generation of gas leakage and fire explosion, ensures and uses gas safety.
Background technique: along with the development of society; the extensive use of new energy; combustion gas has become industry and necessary fuel energy in life; use in the gas process the resident; various leakages are almost arranged everyday; poison; catch fire or the generation of explosive accident; particularly and flexible rubber hose out of control because of the gas pressure regulator, governor pressure regulation comes off; break etc.; the poisoning that causes; catch fire or explosive accident in the majority; had a strong impact on social harmony stable; the application of patent of the present invention in domestic gas can prevent the generation of contingency effectively, reduces property loss; the protection life safety is improved the quality of living.
Summary of the invention: the present invention is a kind of safety protection device that can get final product to pipeline gas superpressure, the leakage of under-voltage and super flow autoshutdown.
For reaching foregoing invention content technological scheme of the present invention be:
1, a kind of safety valve that can get final product to pipeline gas superpressure, the leakage of under-voltage and super flow autoshutdown, by upper shell 2, lower shell body 1, diaphragm 9, platen 8, enable switch, link, pressure regulation bar 12, suction port 20, air outlet 10, overpressure protection parts, forward shutdown system consists of, it is characterized in that: install a forward shutdown system at lower shell body suction port 20 ends, and cooperate with pressure regulation bar 12; Installing diaphragm 9 between upper shell 2 and lower shell body 1; Diaphragm 9 upper ends installing platen 8 and link match with enable switch; Installing overpressure protection parts in diaphragm lower end also match with shutdown system forward by pressure regulation bar 12; One of center, upper shell 2 lower end installing can self-return enable switch, and match with the overpressure protection parts by link.
The technological scheme of invention also comprises:
Described automatic closing valve for pipeline gas is characterized in that forward shutdown system shut up 16, pole shutoff 15, closed cushion rubber 17, closes spring 18 and spring cover plate 19 consists of by the pass.
Described automatic closing valve for pipeline gas is characterized in that enable switch is made of pull-button 3, return spring 5 and pull-button sleeve pipe 4.
Described automatic closing valve for pipeline gas is characterized in that the overpressure protection parts are made of linking iron 11, permanent magnet 13, draw ring 14.
Described automatic closing valve for pipeline gas is characterized in that link is made of connecting rod 7 and screw 6.
Advantage of the present invention: when super flow leakage, under-voltage or when super pressure occurring because the pipeline pressure regulation is out of control occurs pipeline gas, automatic closing valve for pipeline gas of the present invention can automatic self-closing gas, guarantees that the user uses gas safety.The present invention is simple in structure, and technical performance is good, and is practical, and safe and reliable, durable.
Description of drawings: accompanying drawing is the automatic closing valve for pipeline gas structural representation.
Embodiment: with reference to accompanying drawing, automatic closing valve for pipeline gas of the present invention is by upper shell 2, lower shell body 1, elastomer diaphragm 9, platen 8, enable switch, link, pressure regulation bar 12, suction port 20, air outlet 10, overpressure protection parts, forward shutdown system consists of.Enable switch comprises pull-button 3, return spring 5 and pull-button sleeve pipe 4; The overpressure protection parts comprise linking iron 11, permanent magnet 13, draw ring 14; Forward shutdown system comprises closing and shuts up 16, pole shutoff 15, close cushion rubber 17, close spring 18 and spring cover plate 19; Link comprises connecting rod 7 and screw 6.
Automatic closing valve for pipeline gas of the present invention before use shutdown system is in closed condition, during work, the pull-button 3 of pulling enable switch closes 16 unlatchings of shutting up, and combustion gas enters in the housing from suction port 20, diaphragm 9 is under the effect of gaseous-pressure, upwards heave, drive the pole shutoffs motion by pressure regulation bar 12, close cushion rubber 17 and pass and shut up and 16 separate, combustion gas is 10 outputs from the air outlet, its normal operation; When the pipeline gas governor pressure regulation is out of control when super pressure occurring, gaseous-pressure in the housing raises, upwards promote diaphragm 9, diaphragm 9 tension force are when being connected the linking power of iron 11 and permanent magnet 13, being connected iron 11 separates automatically with permanent magnet 13, pressure regulation bar 12 falls down, closing under spring 18 effects, close cushion rubber 17 and pass 16 closures of shutting up, shutdown system is forward closed, and realizes the protection of superpressure autoshutdown, after gaseous-pressure recovers normally, be connected iron 11 and permanent magnet 13 and can automatically be connected merging, it is normal that safety valve recovers; When the under-voltage or super flow of pipeline gas leaked, the gaseous-pressure in the housing sharply descended, and was closing under spring 18 effects, closed cushion rubber 17 and pass 16 closures of shutting up, and shutdown system is forward closed, and realized that the under-voltage and super flow leakage auto-closing of pipeline gas protects.
Claims (5)
1. an energy leaks the safety valve that gets final product autoshutdown to pipeline gas superpressure, under-voltage and super flow, by upper shell 2, lower shell body 1, diaphragm 9, platen 8, enable switch, link, pressure regulation bar 12, suction port 20, air outlet 10, overpressure protection parts, forward shutdown system consists of, it is characterized in that: install a forward shutdown system at lower shell body suction port 20 ends, and cooperate with pressure regulation bar 12; Installing diaphragm 9 between upper shell 2 and lower shell body 1; Diaphragm 9 upper ends installing platen 8 and link match with enable switch; Installing overpressure protection parts in diaphragm lower end also match with shutdown system forward by pressure regulation bar 12; Can automatically reset enable switch one of center, upper shell 2 lower end installing, and match with the overpressure protection parts by link.
2. automatic closing valve for pipeline gas according to claim 1 is characterized in that forward shutdown system shut up 16, pole shutoff 15, closed cushion rubber 17, closes spring 18 and spring cover plate 19 consists of by the pass.
3. automatic closing valve for pipeline gas according to claim 1 is characterized in that enable switch is made of pull-button 3, return spring 5 and pull-button sleeve pipe 4.
4. automatic closing valve for pipeline gas according to claim 1 is characterized in that the overpressure protection parts are made of linking iron 11, permanent magnet 13, draw ring 14.
5. automatic closing valve for pipeline gas according to claim 1 is characterized in that link is made of connecting rod 7 and screw 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101965732A CN102865393A (en) | 2011-07-05 | 2011-07-05 | Automatic cutoff valve for pipe gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101965732A CN102865393A (en) | 2011-07-05 | 2011-07-05 | Automatic cutoff valve for pipe gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102865393A true CN102865393A (en) | 2013-01-09 |
Family
ID=47444445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101965732A Pending CN102865393A (en) | 2011-07-05 | 2011-07-05 | Automatic cutoff valve for pipe gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102865393A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101027A (en) * | 2017-06-20 | 2017-08-29 | 广州凯亨阀门有限公司 | A kind of magnetic coordinated type self-closing valve |
| CN111623155A (en) * | 2019-02-28 | 2020-09-04 | 宁波方太厨具有限公司 | Pressure protection valve and gas water heater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001021989A1 (en) * | 1999-09-20 | 2001-03-29 | Won Bae Lee | Gas safety valve |
| CN201242040Y (en) * | 2008-08-18 | 2009-05-20 | 周冀东 | Pipe gas ultra- and under-pressure self-closing pressure regulating device |
| CN201547353U (en) * | 2009-11-20 | 2010-08-11 | 刘波 | Gas safety self-closing valve |
| CN201688141U (en) * | 2010-01-17 | 2010-12-29 | 曾旋 | Automatic closing gas pressure regulator |
| CN201696693U (en) * | 2010-06-22 | 2011-01-05 | 苏建都 | Pipeline gas pressure regulator equipped with safety protection device inside |
| CN201844077U (en) * | 2010-10-18 | 2011-05-25 | 张珉 | Fuel gas safety protection valve |
-
2011
- 2011-07-05 CN CN2011101965732A patent/CN102865393A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001021989A1 (en) * | 1999-09-20 | 2001-03-29 | Won Bae Lee | Gas safety valve |
| CN201242040Y (en) * | 2008-08-18 | 2009-05-20 | 周冀东 | Pipe gas ultra- and under-pressure self-closing pressure regulating device |
| CN201547353U (en) * | 2009-11-20 | 2010-08-11 | 刘波 | Gas safety self-closing valve |
| CN201688141U (en) * | 2010-01-17 | 2010-12-29 | 曾旋 | Automatic closing gas pressure regulator |
| CN201696693U (en) * | 2010-06-22 | 2011-01-05 | 苏建都 | Pipeline gas pressure regulator equipped with safety protection device inside |
| CN201844077U (en) * | 2010-10-18 | 2011-05-25 | 张珉 | Fuel gas safety protection valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101027A (en) * | 2017-06-20 | 2017-08-29 | 广州凯亨阀门有限公司 | A kind of magnetic coordinated type self-closing valve |
| CN111623155A (en) * | 2019-02-28 | 2020-09-04 | 宁波方太厨具有限公司 | Pressure protection valve and gas water heater |
| CN111623155B (en) * | 2019-02-28 | 2021-05-18 | 宁波方太厨具有限公司 | Pressure protection valve and gas water heater |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130109 |