CN106090421A - A kind of reliable emergency shutoff device of low temperature inflammable medium tank valve hot environment - Google Patents
A kind of reliable emergency shutoff device of low temperature inflammable medium tank valve hot environment Download PDFInfo
- Publication number
- CN106090421A CN106090421A CN201610422009.0A CN201610422009A CN106090421A CN 106090421 A CN106090421 A CN 106090421A CN 201610422009 A CN201610422009 A CN 201610422009A CN 106090421 A CN106090421 A CN 106090421A
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- China
- Prior art keywords
- valve
- temperature
- temperature control
- inner chamber
- valve body
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Classifications
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- 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
- F16K49/00—Means in or on valves for heating or cooling
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- 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
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
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- 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
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
- F16K17/383—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of reliable emergency shutoff device of low temperature inflammable medium tank valve hot environment, including stop valve door body, it is provided with the valve body import inner chamber being connected with cryogenic media outlet and the valve outlet inner chamber being connected with cryogenic media conveyance conduit in valve body, import inner chamber and outlet inner chamber are through by an interface channel, one flap arranging in valve body import lumen side is driven by piston rod and blocks interface channel or open, and is provided with seal on described flap；Being also provided with a temperature control passage, temperature control passage and valve body import inner space on described valve body, temperature control passage connects an atmospheric pipe, is provided with a venting valve on atmospheric pipe.Present configuration is simple, and effectively, it is to avoid the serious consequence brought because of emergency cut-off defective valve, and present configuration is further adapted to arbitrary valve being connected with low-temperature storage tank in addition to main valve, as surveyed full valve, gauge valve etc..
Description
Technical field
The invention belongs to valve field, be specifically related to a kind of reliable emergency cut-off of low temperature inflammable medium tank valve hot environment
Device.
Background technology
Conventional low temperature quick action emergency valve is applicable on cryogenic tank in emergency circumstances cut off medium, it is to avoid storage tank cryogenic liquid
Revealing, low temperature quick action emergency valve realizes the control to fluid mainly by the flap of valve rod bottom, and operation principle is: cylinder is filled with one
During the gas of constant-pressure, the piston in cylinder rises band ovable valve stem and rises Open valve, during release cylinder interior gas, in cylinder
Piston carry ovable valve stem to move downward with flap under the action of the spring, flap seal compress valve seat, valve closing；Therefore,
Quick action emergency valve fusible plug as safety device is arranged on casing outer wall, if meeting with fire, cylinder wall temperature is heated liter
High to about 80 degree fusible plugs fusings, if fusible plug fusing time is long, quick action emergency valve cannot quick closedown, this is to protecting valve
Body seal is unfavorable.
At this moment, not having quick action emergency valve before the full valve of the survey of storage tank, gauge valve and safety valve, these local gases are let out
Dew, or other extraneous burning things which may cause a fire disaster burn emergency cut-off valve seat, or fusible plug inefficacy etc., flame burns valve seat, and its heat conducts
To flap polytetrafluoro seal, seal heat damage, the medium in storage tank breaks through seal under pressure to outward leakage,
Causing quick action emergency valve malfunctioning, the situation such as a large amount of liquid leakages happens occasionally, and these leakages will result in bigger harm.Therefore
The harm that the inadequate natural endowment of quick action emergency valve causes emergency to lose efficacy exists for many years always, its serious harm peace of facility
Entirely.
Content of the invention
The purpose of the present invention is to propose to a kind of reliable emergency shutoff device of low temperature inflammable medium tank valve hot environment, pass through
One cooling duct and a temperature sensor are set in outlet valve body, when storage tank is in hot environment (such as fire)
Valve body is closed, and cooling duct is opened by temperature sensor, utilizes coolant guiding channel cooling duct protection in tank body
Sealing in valve body will not produce inefficacy due to high temperature ageing, it is ensured that valve is closed.
To achieve these goals, the technical scheme is that
A kind of reliable emergency shutoff device of low temperature inflammable medium tank valve hot environment, including arrange at cryogenic media outlet
Stop valve door body, be provided with the valve body import inner chamber being connected with cryogenic media outlet and and cryogenic media in valve body
The valve outlet inner chamber that conveyance conduit connects, import inner chamber and outlet inner chamber are through by an interface channel, and one at valve
The flap that body import lumen side is arranged is driven by piston rod and blocks interface channel or open, and is provided with close on described flap
Sealing；Wherein, described valve body is also provided with a temperature control passage, temperature control passage and valve body import inner space, temperature
Control passage connects an atmospheric pipe, is provided with a venting valve, when valve body temperature sets beyond one on atmospheric pipe
During definite value, valve opening of exitting, the cryogenic media in storage tank through valve body import inner chamber around flap and seal from atmospheric pipe
Release.
Scheme is further: described venting valve is a temperature controlled pneumatic valve, and the control gas circuit of operated pneumatic valve is provided with and is subject to
Temperature controlled temperature control sensor packet, opens when temperature control sensor packet is raised driving operated pneumatic valve by temperature.
Scheme is further: described temperature control sensor packet is wholely set with operated pneumatic valve, or separates with operated pneumatic valve and set
Put and be attached to valve body surface.
Scheme is further: described operated pneumatic valve is arranged on described valve body temperature control channel outlet or sets away from valve body
Put.
Scheme is further: described venting valve is an operated pneumatic valve, and the piston rod of described stop valve door body connects one
Individual pneumatic controller, pneumatic controller is provided with fusible plug, and when environment temperature reaches design temperature, fusible plug melts, pneumatic
Controller is exitted, and piston rod is reset to stop valve door body closed mode, described fusible plug and described operated pneumatic valve switch linkage, easily
Fused plug thawing promotes operated pneumatic valve to open.
The invention has the beneficial effects as follows:
Present configuration is simple, effectively, makes low temperature emergency cut-off valve sealing material utilize self cut off low in high temperature environments
Temperature medium cooling, it is to avoid quick action emergency valve high temperature failure.Avoid the serious consequence brought because of emergency cut-off defective valve, and this
Bright structure is further adapted to arbitrary valve being connected with low-temperature storage tank in addition to main valve, as surveyed full valve, gauge valve etc..
With embodiment, the present invention is described in detail below in conjunction with the accompanying drawings.
Brief description
Fig. 1 is present configuration schematic diagram.
Detailed description of the invention
A kind of reliable emergency shutoff device of low temperature inflammable medium tank valve hot environment, as it is shown in figure 1, described device includes
Export the stop valve door body 2 of 101 settings at cryogenic media storage tank 1, be provided with in valve body and be connected with cryogenic media outlet
Valve body import inner chamber 201 and the valve outlet inner chamber 202 being connected with cryogenic media conveyance conduit 3, import inner chamber and outlet
Inner chamber is through by an interface channel 203, and a flap 4 arranging in valve body import lumen side is driven by piston rod 5
Interface channel is blocked or opens, described flap is provided with seal 401；Wherein, described valve body is also provided with
One temperature control passage 204, temperature control passage and valve body import inner space, temperature control passage connects an atmospheric pipe 6, in venting
Being provided with a venting valve 7 on pipeline, when valve body temperature exceeds a setting value, valve opening of exitting, in storage tank
Cryogenic media is released from atmospheric pipe around flap and seal through valve body import inner chamber, the sealing on cryogenic media cooling flap
Part keeps sealing effectiveness.
In embodiment: described venting valve can be manually-operated gate, optionally a manual control, but as automatic control
System, described venting valve is a temperature controlled pneumatic valve, and the control gas circuit of operated pneumatic valve is provided with temperature control bag temperature controlled and passes
Sensor, opens when temperature control sensor packet is raised driving operated pneumatic valve by temperature；Wherein: described temperature control sensor packet and operated pneumatic valve
It is wholely set, or separately positioned with operated pneumatic valve be attached to valve body surface；When temperature control sensor packet is fused by temperature rising
Rear operated pneumatic valve is opened, and this control has several ways, for example: temperature control sensor packet is blocked in the control gas circuit of operated pneumatic valve
In, temperature control sensor packet reaches fusing after design temperature, control gas circuit conducting venting valve opening, or the control of operated pneumatic valve
Gas circuit is controlled by an elastomeric element, and elastomeric element connects temperature control sensor packet, controlled by temperature control sensor packet, and temperature control bag senses
Device reaches fusing after design temperature, and elastomeric element discharges, venting valve opening, etc..
Wherein: described operated pneumatic valve may be provided at described valve body temperature control channel outlet or arranges away from valve body.
In addition, conduct automatically controls:
One preferred scheme is: a temperature sensor is attached to valve body surface configuration, after described operated pneumatic valve is opened,
The size that the signal of temperature sensor is opened according to temperature height high adjustment operated pneumatic valve by remote controllers, this control is permissible
Controlling the burst size of cryogenic media, the signal of telecommunication has been used in this control, therefore temperature sensor sealing to be carried out, and synchronous signal line needs
Use the cable that bonding is good.
Fig. 1 also illustrates traditional low temperature quick action emergency valve technique, and wherein, the piston rod of described stop valve door body connects
One pneumatic controller 8, pneumatic controller is provided with fusible plug 9, and when environment temperature reaches design temperature, fusible plug melts,
Pneumatic controller is exitted, and piston rod is reset to stop valve door body closed mode, it may be assumed that operation principle is: pneumatic controller cylinder fills
When entering the gas of certain pressure, the piston in cylinder rises band ovable valve stem and rises Open valve, during release cylinder interior gas, and gas
Piston in cylinder carries ovable valve stem to move downward with flap under the action of the spring, and flap seal compresses valve seat, valve closing；Cause
This, the quick action emergency valve fusible plug as safety device is arranged on casing outer wall, if meeting with fire, cylinder wall temperature is heated
It is increased to about 80 degree fusible plug fusings.
Therefore, another preferred version is: described venting valve is an operated pneumatic valve, the piston of described stop valve door body
Bar connects a pneumatic controller 8, and pneumatic controller is provided with fusible plug 9, meltable when environment temperature reaches design temperature
Plug melts, and pneumatic controller is exitted, and piston rod is reset to stop valve door body closed mode, described fusible plug and described operated pneumatic valve
Switch linkage, such as operated pneumatic valve are to be opened and closed by an extension spring control, and extension spring is connected to fusible plug, and fusible plug melts
Changing promotes operated pneumatic valve to open.
In order to when catching fire, or during high temperature, people can participate in control: operated pneumatic valve away from hazardous gas, described operated pneumatic valve with
Stop valve door body away from least 10 meters.
Claims (5)
1. the reliable emergency shutoff device of low temperature inflammable medium tank valve hot environment, including set at cryogenic media outlet
The stop valve door body put, is provided with the valve body import inner chamber being connected with cryogenic media outlet and is situated between with low temperature in valve body
The valve outlet inner chamber that matter conveyance conduit connects, import inner chamber and outlet inner chamber are through by an interface channel, and one at valve
The flap that door body import lumen side is arranged is driven by piston rod and blocks interface channel or open, and is provided with on described flap
Seal；It is characterized in that, described valve body is also provided with a temperature control passage, temperature control passage and valve body import inner chamber
Connection, temperature control passage connects an atmospheric pipe, is provided with a venting valve, when valve body temperature exceeds on atmospheric pipe
During one setting value, valve opening of exitting, the cryogenic media in storage tank through valve body import inner chamber around flap and seal from putting
Feed channel is released.
2. reliable emergency shutoff device according to claim 1, it is characterised in that described venting valve is a temperature control gas
Movable valve, the control gas circuit of operated pneumatic valve is provided with temperature control sensor packet temperature controlled, when temperature control sensor packet is by temperature liter
High driving operated pneumatic valve is opened.
3. reliable emergency shutoff device according to claim 2, it is characterised in that described temperature control sensor packet and pneumatic operated valve
Door is wholely set, or separately positioned with operated pneumatic valve is attached to valve body surface.
4. reliable emergency shutoff device according to claim 2, it is characterised in that described operated pneumatic valve is arranged on described valve
Door body temperature control channel outlet or away from valve body arrange.
5. reliable emergency shutoff device according to claim 1, it is characterised in that described venting valve is a pneumatic operated valve
Door, the piston rod of described stop valve door body connects a pneumatic controller, pneumatic controller is provided with fusible plug, when environment temperature
When degree reaches design temperature, fusible plug melts, and pneumatic controller is exitted, and piston rod is reset to stop valve door body closed mode, described
Fusible plug and described operated pneumatic valve switch linkage, fusible plug thawing promotes operated pneumatic valve to open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422009.0A CN106090421B (en) | 2016-06-16 | 2016-06-16 | A kind of inflammable reliable emergency shutoff device of medium tank valve hot environment of low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422009.0A CN106090421B (en) | 2016-06-16 | 2016-06-16 | A kind of inflammable reliable emergency shutoff device of medium tank valve hot environment of low temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106090421A true CN106090421A (en) | 2016-11-09 |
| CN106090421B CN106090421B (en) | 2018-03-02 |
Family
ID=57845669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610422009.0A Active CN106090421B (en) | 2016-06-16 | 2016-06-16 | A kind of inflammable reliable emergency shutoff device of medium tank valve hot environment of low temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106090421B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458478A (en) * | 2018-12-28 | 2019-03-12 | 明珠阀门集团有限公司 | A kind of passive fire emergency fuses valve automatically |
| CN113140334A (en) * | 2021-03-19 | 2021-07-20 | 中国核电工程有限公司 | Final heat trap system for active and passive cooperative cooling of nuclear power station |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2100141A1 (en) * | 1970-08-21 | 1972-02-24 | Stassfurt Veb Chemieanlagenbau | Shut-off device for hot media, especially for the introduction of steam into centrifuge drums |
| CH670494A5 (en) * | 1985-09-19 | 1989-06-15 | Babcock Werke Ag | |
| CN101713567A (en) * | 2008-10-06 | 2010-05-26 | 于清春 | Temperature controlled automatic steam trap |
| CN202188201U (en) * | 2011-08-15 | 2012-04-11 | 杭州工电能源科技有限公司 | Magnetic-control valve with temperature control device |
| CN202768875U (en) * | 2012-09-20 | 2013-03-06 | 四川良川机械设备有限公司 | Novel low temperature emergency shut-off valve for liquefied natural gas (LNG) station |
| CN202927186U (en) * | 2012-11-20 | 2013-05-08 | 浙江嘉隆机械设备有限公司 | Emergency shutoff bottom valve of oil tank truck |
| CN203797088U (en) * | 2014-04-22 | 2014-08-27 | 四川成都空分配套阀门有限公司 | Emergency cut-off valve |
| CN204025812U (en) * | 2014-08-28 | 2014-12-17 | 常州凯鹏液流器材有限公司 | Meltable shut-off means for Emergeny Cutoff Valves |
-
2016
- 2016-06-16 CN CN201610422009.0A patent/CN106090421B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2100141A1 (en) * | 1970-08-21 | 1972-02-24 | Stassfurt Veb Chemieanlagenbau | Shut-off device for hot media, especially for the introduction of steam into centrifuge drums |
| CH670494A5 (en) * | 1985-09-19 | 1989-06-15 | Babcock Werke Ag | |
| CN101713567A (en) * | 2008-10-06 | 2010-05-26 | 于清春 | Temperature controlled automatic steam trap |
| CN202188201U (en) * | 2011-08-15 | 2012-04-11 | 杭州工电能源科技有限公司 | Magnetic-control valve with temperature control device |
| CN202768875U (en) * | 2012-09-20 | 2013-03-06 | 四川良川机械设备有限公司 | Novel low temperature emergency shut-off valve for liquefied natural gas (LNG) station |
| CN202927186U (en) * | 2012-11-20 | 2013-05-08 | 浙江嘉隆机械设备有限公司 | Emergency shutoff bottom valve of oil tank truck |
| CN203797088U (en) * | 2014-04-22 | 2014-08-27 | 四川成都空分配套阀门有限公司 | Emergency cut-off valve |
| CN204025812U (en) * | 2014-08-28 | 2014-12-17 | 常州凯鹏液流器材有限公司 | Meltable shut-off means for Emergeny Cutoff Valves |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458478A (en) * | 2018-12-28 | 2019-03-12 | 明珠阀门集团有限公司 | A kind of passive fire emergency fuses valve automatically |
| CN113140334A (en) * | 2021-03-19 | 2021-07-20 | 中国核电工程有限公司 | Final heat trap system for active and passive cooperative cooling of nuclear power station |
| WO2022193785A1 (en) * | 2021-03-19 | 2022-09-22 | 中国核电工程有限公司 | Active and passive cooperative cooling method for nuclear power plant, and ultimate heat sink system |
| GB2619214A (en) * | 2021-03-19 | 2023-11-29 | China Nuclear Power Eng Co Ltd | Active and passive cooperative cooling method for nuclear power plant, and ultimate heat sink system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106090421B (en) | 2018-03-02 |
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