CN201599463U - Mini full lift safety valve - Google Patents
Mini full lift safety valve Download PDFInfo
- Publication number
- CN201599463U CN201599463U CN2009202884571U CN200920288457U CN201599463U CN 201599463 U CN201599463 U CN 201599463U CN 2009202884571 U CN2009202884571 U CN 2009202884571U CN 200920288457 U CN200920288457 U CN 200920288457U CN 201599463 U CN201599463 U CN 201599463U
- Authority
- CN
- China
- Prior art keywords
- bonnet
- escape orifice
- flap
- valve body
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model belongs to the technical field of safety equipment and relates to pressure container safety protection devices, in particular to a mini full lift safety valve. A relief hole is communicated with the atmosphere, and the safety valve includes a valve seat, a valve body, a silicon rubber gasket, a valve disc, a spring, a locking nut, a bonnet, a bonnet vent hole, a first medium relief hole and a second medium relief hole. A relief outlet is of a threaded connection structure, and with an increasing aperture of the outlet, an extrusion air chamber can not be formed among the valve disc, the valve seat and the valve body, thereby a guide sleeve needs to be arranged, attached to the inner wall of the valve body, on the basis of the structure. The mini full lift safety valve can realize fast discharge of an ultra low pressure working device under the condition of overpressure, and ensure the device not to be damaged due to the overpressure, adopts the 'metal-silicon rubber gasket'for sealing, is high-temperature resistant and difficult for ageing, and can realize fine sealing under the condition of ultra low sealing specific pressure.
Description
Technical field
The utility model belongs to the safety equipment technical field, relates to a kind of pressure vessel safety protective gear, relates in particular to a kind of miniature Fall lift safety valve, realizes releasing fast when pressurized container generation superpressure, guarantees that device security is reliable.
Background technique
Miniature safety valve generally comprises valve seat, valve body and bonnet, and flap and spring are housed in the valve body, and rotation bonnet Regulation spring decrement realizes the pressure adjusting.The screw connected safety valve of existing low pressure is micro-open type, and discharge capacity is little, and sealing configuration is " metal--metal " plane or conical surface seal, workpiece processing required precision height, complex process, poor sealing performance.
The model utility content
The purpose of this utility model is the deficiency that overcomes existing miniature safety valve, and a kind of easy processing, flexible movements, sealability is reliable, discharge capacity is big miniature Fall lift safety valve are provided.
The technical solution of the utility model is: a kind of miniature Fall lift safety valve, escape orifice communicates with atmosphere, comprises valve seat 1, valve body 2, silicone rubber seal pad 3, flap 4, spring 5, locking nut 6, bonnet 7, bonnet exhaust port A, the first medium escape orifice B and the second medium escape orifice C.Valve seat 1 and valve body 2 interfix by being threaded, silicone rubber seal pad 3 embeds in the flap 4, flap 4 is installed in the valve body 2, is slidingly matched with valve body 2, and spring 5 is installed in the flap 4, bonnet 7 is installed on valve body 2 tops by being threaded, fixing spring 5 turns the decrement that bonnet 7 can be adjusted spring 5 simultaneously, to realize the adjusting to safety valve setting pressure, bonnet 7 is provided with bonnet exhaust port A, tightens locking nut 6 locking bonnets 7 after pressure is adjusted.Valve body 2 is provided with the first medium escape orifice B and the second medium escape orifice C, the first medium escape orifice B quantity is 4 or 6, the hole area sum needs greater than the safety valve Flow area, the second medium escape orifice C quantity is 1 or 2, the aperture is 2mm～4mm, wherein the first medium escape orifice B is not a closed state during take-off at flap 4, constitutes an extruding air chamber D between flap 4 and valve seat 1, valve body 2 threes, and the second medium escape orifice C is positioned at extruding air chamber D side.
A kind of miniature Fall lift safety valve, the outlet of releasing is screw connection structure, the outlet bore becomes big, can't form extruding air chamber D between flap 4 and valve seat 1, valve body 2 threes, need be on the said structure basis, at applying valve body 2 inwalls guide sleeve 8 is set, guide sleeve 8 is fixing by being threaded with valve seat 1, flap 4 is installed in the guide sleeve 8, be slidingly matched with guide sleeve 8, guide sleeve 8 is provided with the first medium escape orifice B and the second medium escape orifice C, forms extruding air chamber D between flap 4 and valve seat 1, the guide sleeve 8.
Working principle of the present utility model is: the utility model is connected with protected container by screw thread; when container inner pressure reaches opening pressure of safety valve; the superpressure medium is disposed among the extruding air chamber D by sealing surface; this moment, the first medium escape orifice B was a closed state; be subjected to too small influence of the second medium escape orifice C bore; pressure raises rapidly among the extruding air chamber D; flap 4 is increased by medium active force area, when container inner pressure reaches the safety valve discharge pressure, and flap 4 rapid take-offs; reach full open; this moment, the first medium escape orifice B opened, and the excess of export piezodielectric of releasing is when pressure is reduced to certain value; 4 times seats of flap are realized sealing again.Can regulate the discharge pressure and the Reseating pressure of a safety valve of safety valve by the caliber size of the design change second medium escape orifice C.The bonnet exhaust port A effect that wherein is arranged on the bonnet 7 is to give off the pressure that flap 4 take-off process compress and 7 chamber gases of bonnet produce, and influences flap 4 take-offs in order to avoid produce back pressure.The cutter type sealing surface of valve seat 1 cooperates realization " metal-silicone rubber " sealing with silicone rubber seal pad 3, can reach excellent sealing under extremely low seal pressure situation, reaches zero leakage.
The beneficial effects of the utility model are: can realize that the super-low voltage working equipment realizes quick drain under the superpressure situation, guarantee that equipment does not damage because of superpressure; Adopt " metal-silicone rubber pad " sealing, high temperature resistant, be difficult for wearing out, can under extremely low seal pressure condition, realize excellent sealing.
Description of drawings
Fig. 1 communicates with atmosphere for escape orifice, medium directly is disposed to the miniature Fall lift safety valve structural representation in the atmosphere;
Fig. 2 for escape orifice outlet for being threaded, can connecting the miniature Fall lift safety valve structural representation of blowdown piping etc.
Among the figure: 1, valve seat, 2, valve body, 3, the silicone rubber seal pad, 4, flap, 5, spring, 6, locking nut, 7, bonnet, 8, guide sleeve, A, bonnet exhaust port, B, the first medium escape orifice, C, the second medium escape orifice, D, extruding air chamber.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further details.
As shown in Figure 1, a kind of miniature Fall lift safety valve, escape orifice communicates with atmosphere, and this safety valve comprises valve seat 1, valve body 2, silicone rubber seal pad 3, flap 4, spring 5, locking nut 6, bonnet 7, bonnet exhaust port A, the first medium escape orifice B and the second medium escape orifice C.Valve seat 1 and valve body 2 interfix by being threaded, silicone rubber seal pad 3 embeds in the flap 4, flap 4 is installed in the valve body 2, is slidingly matched with valve body 2, and spring 5 is installed in the flap 4, bonnet 7 is installed on valve body 2 tops by being threaded, fixing spring 5 turns the decrement that bonnet 7 can be adjusted spring 5 simultaneously, to realize the adjusting to safety valve setting pressure, bonnet 7 is provided with bonnet exhaust port A, tightens locking nut 6 locking bonnets 7 after pressure is adjusted.Valve body 2 is provided with the first medium escape orifice B and the second medium escape orifice C, the first medium escape orifice B quantity is 4, the hole area sum needs greater than the safety valve Flow area, 2 of the second medium escape orifice C quantity, the aperture is 3mm, wherein the first medium escape orifice B is not a closed state during take-off at flap 4, constitutes an extruding air chamber D between flap 4 and valve seat 1, valve body 2 threes, and the second medium escape orifice C is positioned at extruding air chamber D side.
As shown in Figure 2, a kind of miniature Fall lift safety valve, the outlet of releasing is screw connection structure, the outlet bore becomes big, and this safety valve comprises valve seat 1, valve body 2, silicone rubber seal pad 3, flap 4, spring 5, locking nut 6, bonnet 7, guide sleeve 8, bonnet exhaust port A, the first medium escape orifice B and the second medium escape orifice C.At applying valve body 2 inwalls guide sleeve 8 is set, guide sleeve 8 is fixing by being threaded with valve seat 1, silicone rubber seal pad 3 embeds in the flap 4, flap 4 is installed in the guide sleeve 8, be slidingly matched with guide sleeve 8, spring 5 is installed in the flap 4, bonnet 7 is installed on valve body 2 tops by being threaded, while fixing spring 5, turn bonnet 7 and can adjust the decrement of spring 5, to realize the adjusting to safety valve setting pressure, bonnet 7 is provided with bonnet exhaust port A, tightens locking nut 6 locking bonnets 7 after pressure is adjusted.Guide sleeve 8 is provided with the first medium escape orifice B and the second medium escape orifice C, the first medium escape orifice B quantity is 4, the hole area sum needs greater than the safety valve Flow area, 2 of the second medium escape orifice C quantity, the aperture is 3mm, wherein the first medium escape orifice B is not a closed state during take-off at flap 4, constitutes an extruding air chamber D between flap 4 and valve seat 1, guide sleeve 8 threes, and the second medium escape orifice C is positioned at extruding air chamber D side.
Claims (2)
1. miniature Fall lift safety valve, escape orifice communicates with atmosphere, it is characterized in that, this safety valve comprises valve seat (1), valve body (2), silicone rubber seal pad (3), flap (4), spring (5), locking nut (6), bonnet (7), bonnet exhaust port (A), the first medium escape orifice (B) and the second medium escape orifice (C), valve seat (1) and valve body (2) interfix by being threaded, silicone rubber seal pad (3) embeds in the flap (4), flap (4) is installed in the valve body (2), be slidingly matched with valve body (2), spring (5) is installed in the flap (4), bonnet (7) is installed on valve body (2) top by being threaded, while fixing spring (5), turn bonnet (7) and can adjust the decrement of spring (5), bonnet (7) is provided with bonnet exhaust port (A), after adjusting, tightens pressure locking nut (6) locking bonnet (7), valve body (2) is provided with the first medium escape orifice (B) and the second medium escape orifice (C), first medium escape orifice (B) quantity is 4 or 6, the hole area sum needs greater than the safety valve Flow area, second medium escape orifice (C) quantity is 1 or 2, the aperture is 2mm～4mm, wherein the first medium escape orifice (B) is not a closed state during take-off at flap (4), flap (4) and valve seat (1), constitute an extruding air chamber (D) between valve body (2) three, the second medium escape orifice (C) is positioned at extruding air chamber (D) side.
2. miniature Fall lift safety valve, the outlet of releasing is screw connection structure, the outlet bore becomes big, it is characterized in that, this safety valve comprises valve seat (1), valve body (2), silicone rubber seal pad (3), flap (4), spring (5), locking nut (6), bonnet (7), guide sleeve (8), bonnet exhaust port (A), the first medium escape orifice (B) and the second medium escape orifice (C), at applying valve body (2) inwall guide sleeve (8) is set, guide sleeve (8) is fixing by being threaded with valve seat (1), silicone rubber seal pad (3) embeds in the flap (4), flap (4) is installed in the guide sleeve (8), be slidingly matched with guide sleeve (8), spring (5) is installed in the flap (4), bonnet (7) is installed on valve body (2) top by being threaded, while fixing spring (5), turn bonnet (7) and can adjust the decrement of spring (5), bonnet (7) is provided with bonnet exhaust port (A), after adjusting, tightens pressure locking nut (6) locking bonnet (7), guide sleeve (8) is provided with the first medium escape orifice (B) and the second medium escape orifice (C), first medium escape orifice (B) quantity is 4 or 6, the hole area sum needs greater than the safety valve Flow area, second medium escape orifice (C) quantity is 1 or 2, the aperture is 2mm～4mm, wherein the first medium escape orifice (B) is not a closed state during take-off at flap (4), flap (4) and valve seat (1), constitute an extruding air chamber (D) between guide sleeve (8) three, the second medium escape orifice (C) is positioned at extruding air chamber (D) side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202884571U CN201599463U (en) | 2009-12-25 | 2009-12-25 | Mini full lift safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202884571U CN201599463U (en) | 2009-12-25 | 2009-12-25 | Mini full lift safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599463U true CN201599463U (en) | 2010-10-06 |
Family
ID=42810518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202884571U Expired - Fee Related CN201599463U (en) | 2009-12-25 | 2009-12-25 | Mini full lift safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201599463U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104727A (en) * | 2012-12-11 | 2013-05-15 | 天津市国威给排水设备制造有限公司 | Exhaust value structure capable of exhausting not supplying air |
| CN105587327A (en) * | 2016-01-25 | 2016-05-18 | 巨隆集团芜湖兴隆液压有限公司 | Valve core assembly of safety valve |
| CN105626118A (en) * | 2016-01-25 | 2016-06-01 | 巨隆集团芜湖兴隆液压有限公司 | Valve core assembly of mass-flow overflow safety valve |
| CN105626119A (en) * | 2016-01-25 | 2016-06-01 | 巨隆集团芜湖兴隆液压有限公司 | Switching mechanism of overflow safety valve |
| CN105715285A (en) * | 2016-01-25 | 2016-06-29 | 巨隆集团芜湖兴隆液压有限公司 | Valve element assembly of overflow safety valve |
| CN107339475A (en) * | 2016-12-08 | 2017-11-10 | 安徽江淮汽车集团股份有限公司 | Safety air vavle |
| CN107816567A (en) * | 2017-11-20 | 2018-03-20 | 北京京诚科林环保科技有限公司 | Explosion venting device |
| CN111963737A (en) * | 2020-08-04 | 2020-11-20 | 上海国之鼎铁路机电有限公司 | Low-temperature-resistant main air cylinder high-pressure safety valve for rail transit |
| CN112394556A (en) * | 2020-12-17 | 2021-02-23 | 江西富益特显示技术有限公司 | Attached equipment of full-automatic polaroid |
| CN114607814A (en) * | 2020-12-08 | 2022-06-10 | 未势能源科技有限公司 | Safety valve |
-
2009
- 2009-12-25 CN CN2009202884571U patent/CN201599463U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104727A (en) * | 2012-12-11 | 2013-05-15 | 天津市国威给排水设备制造有限公司 | Exhaust value structure capable of exhausting not supplying air |
| CN105587327A (en) * | 2016-01-25 | 2016-05-18 | 巨隆集团芜湖兴隆液压有限公司 | Valve core assembly of safety valve |
| CN105626118A (en) * | 2016-01-25 | 2016-06-01 | 巨隆集团芜湖兴隆液压有限公司 | Valve core assembly of mass-flow overflow safety valve |
| CN105626119A (en) * | 2016-01-25 | 2016-06-01 | 巨隆集团芜湖兴隆液压有限公司 | Switching mechanism of overflow safety valve |
| CN105715285A (en) * | 2016-01-25 | 2016-06-29 | 巨隆集团芜湖兴隆液压有限公司 | Valve element assembly of overflow safety valve |
| CN107339475A (en) * | 2016-12-08 | 2017-11-10 | 安徽江淮汽车集团股份有限公司 | Safety air vavle |
| CN107816567A (en) * | 2017-11-20 | 2018-03-20 | 北京京诚科林环保科技有限公司 | Explosion venting device |
| CN107816567B (en) * | 2017-11-20 | 2023-11-10 | 北京京诚科林环保科技有限公司 | explosion venting device |
| CN111963737A (en) * | 2020-08-04 | 2020-11-20 | 上海国之鼎铁路机电有限公司 | Low-temperature-resistant main air cylinder high-pressure safety valve for rail transit |
| CN114607814A (en) * | 2020-12-08 | 2022-06-10 | 未势能源科技有限公司 | Safety valve |
| CN112394556A (en) * | 2020-12-17 | 2021-02-23 | 江西富益特显示技术有限公司 | Attached equipment of full-automatic polaroid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201599463U (en) | Mini full lift safety valve | |
| CN204677839U (en) | A kind of spring micro-opening closes high voltage type Decompression valves | |
| CN213809061U (en) | Pressure-adjustable safety valve | |
| CN204961945U (en) | Breathe relief valve | |
| CN203516877U (en) | Automatic pressure releasing valve | |
| CN214119066U (en) | Outlet pressure control valve for refrigeration system | |
| CN112032377B (en) | Quick-response pilot operated safety valve and system overpressure quick protection method | |
| CN110864147B (en) | Cut-adjusting integrated pressure regulator and integrated gas pressure regulating core | |
| CN205226508U (en) | Relief valve | |
| CN205423978U (en) | Relief valve | |
| CN202520680U (en) | Novel direct-acting overflow valve | |
| CN205136709U (en) | Mechanical type multi -function control valve | |
| CN201141458Y (en) | High-pressure low-temperature safety valve | |
| CN202674423U (en) | Micro-pressure relief valve | |
| CN204420295U (en) | A kind of vacuum corrugated pipe realizes the reduction valve that delivery pressure is absolute pressure | |
| CN101985990B (en) | Metal bidirectional sealing valve cavity safety relief device | |
| CN205036864U (en) | Sealed -regulating valve seat device | |
| CN209990967U (en) | Novel pressure stabilizing and reducing valve | |
| CN202432046U (en) | Differential pressure type pneumatic operation valve | |
| CN201502762U (en) | Damping safety valve | |
| CN202176808U (en) | Zero-pressure opening remote control float valve | |
| CN206846013U (en) | Mud special safety valve | |
| CN219263184U (en) | Direct acting spring loaded multifunctional valve | |
| CN214305408U (en) | Stacked three-way pilot control pressure reducing valve | |
| CN220118724U (en) | Direct-acting overload valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Dalian Ligong Safety Equipment Co., Ltd. Assignor: Dalian Science and Technology Safety Tech and Controlling Engineering Research Center Co., Ltd. Contract record no.: 2011210000131 Denomination of utility model: Mini full lift safety valve Granted publication date: 20101006 License type: Exclusive License Record date: 20110913 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20131225 |