CN105299276A - Safety valve with high sealing property - Google Patents
Safety valve with high sealing property Download PDFInfo
- Publication number
- CN105299276A CN105299276A CN201510826545.2A CN201510826545A CN105299276A CN 105299276 A CN105299276 A CN 105299276A CN 201510826545 A CN201510826545 A CN 201510826545A CN 105299276 A CN105299276 A CN 105299276A
- Authority
- CN
- China
- Prior art keywords
- sealing gasket
- valve
- sealing
- gland
- raised line
- 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.)
- Granted
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to a safety valve with high sealing property. The safety valve comprises a valve body, a valve cover, a pressure rod, a pressure cover, a spring and a sealing pad, wherein the valve cover comprises a main body part, an ejector part and a punching part which are integrated; the main body part and the ejector part are cylindrical structures; the ejector part is a tapered structure; a sealing pad fixing cavity is formed in the valve cover; the sealing pad comprises a first sealing pad and a second sealing pad; the first sealing pad is fixed on the valve cover; a ring of third convex ribs is arranged on the first sealing pad; the second sealing pad is fixed in the first sealing pad in an interference fit mode; a second lug is arranged on the second sealing pad; a sealing cavity which is of a circular ring shaped structure is formed between the second bump and the third convex ribs; the sealing cavity is in clearance fit with a second convex rib; a pressure rod channel is arranged on the pressure cover; the pressure rod is fixed at one end of the valve cover through a bolt; the spring is arranged on the outer part of the pressure rod in a sleeving mode; and the pressure rod penetrates through the pressure cover, so that the spring is fixed between the valve cover and the pressure cover. The safety valve is simple in structure, good in sealing property and relatively safe and reliable.
Description
Technical field
The present invention relates to a kind of safety valve, particularly a kind of safety valve of high sealing performance.
Background technique
Safety valve is the working pressure automatic on-off according to pressure system, is generally installed on protective system safety on the equipment of locking system or pipeline, and its Reliability of Microprocessor and performance quality are directly connected to the safety of equipment and the person.Safety valve mainly contains two large classes: spring and Lever type.Spring refers to the active force of sealing by spring of flap and valve seat.The valve rod of Direct spring loaded safety valve is generally integral structure, but Direct spring loaded safety valve be in closed state time, poor sealing, Safety performance can not be guaranteed.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of safety valve of high sealing performance, and structure is simple, and good airproof performance is more safe and reliable.
For solving the problems of the technologies described above, technological scheme of the present invention is:
A kind of safety valve of high sealing performance, comprise valve body, valve gap, depression bar, gland, spring and sealing gasket, described valve body is hollow structure, be provided with circle first projection in valve body will be divided into main passage in valve body and regulate chamber, main passage is connected with adjustment chamber, the internal diameter d1 < of main passage regulates the internal diameter d2 in chamber, and the first projection edge is provided with circle second raised line, described valve gap comprises the main body part of integral structure, jack-up parts and release parts, main body part and jack-up parts are cylindrical structural, the outside diameter d 4 of the outside diameter d 3 > jack-up parts of main body part, release parts are cone structure, be provided with sealing gasket lock chamber in described valve gap, the inwall of sealing gasket lock chamber is provided with internal thread, described sealing gasket comprises the first sealing gasket and the second sealing gasket, first sealing gasket is cirque structure, first sealing gasket outside is provided with outside thread, internal thread on the outside thread of the first sealing gasket and the inwall of sealing gasket lock chamber cooperatively interacts, be fixed on valve gap, first sealing gasket is provided with a circle the 3rd raised line, the length L4 of length L3=second raised line of the 3rd raised line, second sealing gasket is cylindrical structural, interference fit be fixed in the first sealing gasket, second sealing gasket is provided with the second projection, the Seal cage of cirque structure is formed between second projection and the 3rd raised line, Seal cage and the second raised line Spielpassung, described gland is fixed on by screw-thread fit and regulates in chamber, gland is provided with depression bar passage, the length L1 > of described depression bar regulates the length L2 in chamber, depression bar is bolted on valve gap one end, spring housing is outside at depression bar, depression bar, through gland, makes spring be fixed between valve gap and gland.
A safety valve for high sealing performance, wherein, described gland is provided with adjusting grooves, and described adjusting grooves becomes in-line structure or decussate texture.
Beneficial effect of the present invention is:
When the present invention uses, can according to job requirement, regulate the distance between gland and valve gap, make the spring be positioned between the two be in compressive state, now, second raised line being pressed together in Seal cage tightly carries out the first resealing, it is outside that 3rd raised line is coated on the second raised line, forms the second resealing, can fully ensure within the air pressure range of setting, safety valve can not be revealed, safe and reliable; After valve body inside cylinder is greater than setting value, air pressure promotes valve gap and outwards moves, can automatic vent, ensures to be provided with trouble free service.
Valve gap comprises the main body part of integral structure, jack-up parts and release parts, and main body part and jack-up parts match, air pressure can be stable valve gap is played a role in promoting, the release parts of cone structure, frictional force when reducing exhaust and pressure, decrease loss, safer;
Structure of the present invention is simple, and good airproof performance, adds working life, ensure that use safety.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention.
Fig. 2 is A portion of the present invention enlarged view.
Fig. 3 is valve gap of the present invention, sealing gasket constitutional diagram.
Fig. 4 is valve gap side view of the present invention.
Embodiment
A kind of safety valve of high sealing performance as shown in the figure, comprise valve body 1, valve gap 2, depression bar 3, gland 4, spring 5 and sealing gasket 6, described valve body 1 is hollow structure, be provided with circle first projection 7 in valve body 1 will be divided into main passage 8 in valve body and regulate chamber 9, main passage 8 and adjustment chamber phase 9 are communicated with, the internal diameter d1 < of main passage 8 regulates the internal diameter d2 in chamber 9, and the first projection 7 edge is provided with circle second raised line 10, described valve gap 2 comprises the main body part 11 of integral structure, jack-up parts 12 and release parts 13, main body part 11 and jack-up parts 12 are cylindrical structural, the outside diameter d 4 of the outside diameter d 3 > jack-up parts 12 of main body part 11, releasing parts 13 is cone structure, be provided with sealing gasket lock chamber 14 in described valve gap 2, the inwall of sealing gasket lock chamber 14 is provided with internal thread 15, described sealing gasket 6 comprises the first sealing gasket 16 and the second sealing gasket 17, first sealing gasket 16 is cirque structure, first sealing gasket 16 outside is provided with outside thread 18, the outside thread 18 of the first sealing gasket 16 cooperatively interacts with the internal thread 15 on the inwall of sealing gasket lock chamber, be fixed on valve gap 2, first sealing gasket 16 is provided with a circle the 3rd raised line 19, the length L4 of length L3=second raised line 10 of the 3rd raised line 19, second sealing gasket 17 is cylindrical structural, interference fit be fixed in the first sealing gasket 16, second sealing gasket 17 is provided with the second projection 20, the Seal cage 21 of cirque structure is formed between second projection 20 and the 3rd raised line 19, Seal cage 21 and the second raised line 10 Spielpassung, described gland 4 is fixed on by screw-thread fit and regulates in chamber 9, gland 4 is provided with depression bar passage 22, the length L1 > of described depression bar 3 regulates the length L2 in chamber 9, depression bar 3 is fixed on valve gap 4 one end by bolt 23, it is outside that spring 5 is enclosed within depression bar 3, and depression bar 3, through gland 4, makes spring 5 be fixed between valve gap 2 and gland 4, described gland 4 is provided with adjusting grooves 24, described adjusting grooves 24 one-tenth in-line structure or decussate texture.
When the present invention uses, can according to job requirement, regulate the distance between gland and valve gap, make the spring be positioned between the two be in compressive state, now, second raised line being pressed together in Seal cage tightly carries out the first resealing, it is outside that 3rd raised line is coated on the second raised line, forms the second resealing, can fully ensure within the air pressure range of setting, safety valve can not be revealed, safe and reliable; After valve body inside cylinder is greater than setting value, air pressure promotes valve gap and outwards moves, can automatic vent, ensures to be provided with trouble free service.
Valve gap comprises the main body part of integral structure, jack-up parts and release parts, and main body part and jack-up parts match, air pressure can be stable valve gap is played a role in promoting, the release parts of cone structure, frictional force when reducing exhaust and pressure, decrease loss, safer;
Structure of the present invention is simple, and good airproof performance, adds working life, ensure that use safety.
Here description of the invention and application is illustrative, not wants by scope restriction of the present invention in the above-described embodiments, and therefore, the present invention is not by the restriction of the present embodiment, and the technological scheme that any employing equivalence replacement obtains is all in the scope of protection of the invention.
Claims (2)
1. the safety valve of a high sealing performance, it is characterized by, comprise valve body, valve gap, depression bar, gland, spring and sealing gasket, described valve body is hollow structure, be provided with circle first projection in valve body will be divided into main passage in valve body and regulate chamber, main passage is connected with adjustment chamber, and the internal diameter d1 < of main passage regulates the internal diameter d2 in chamber, and the first projection edge is provided with circle second raised line, described valve gap comprises the main body part of integral structure, jack-up parts and release parts, main body part and jack-up parts are cylindrical structural, the outside diameter d 4 of the outside diameter d 3 > jack-up parts of main body part, release parts are cone structure, be provided with sealing gasket lock chamber in described valve gap, the inwall of sealing gasket lock chamber is provided with internal thread, described sealing gasket comprises the first sealing gasket and the second sealing gasket, first sealing gasket is cirque structure, first sealing gasket outside is provided with outside thread, internal thread on the outside thread of the first sealing gasket and the inwall of sealing gasket lock chamber cooperatively interacts, be fixed on valve gap, first sealing gasket is provided with a circle the 3rd raised line, the length L4 of length L3=second raised line of the 3rd raised line, second sealing gasket is cylindrical structural, interference fit be fixed in the first sealing gasket, second sealing gasket is provided with the second projection, the Seal cage of cirque structure is formed between second projection and the 3rd raised line, Seal cage and the second raised line Spielpassung, described gland is fixed on by screw-thread fit and regulates in chamber, gland is provided with depression bar passage, the length L1 > of described depression bar regulates the length L2 in chamber, depression bar is bolted on valve gap one end, spring housing is outside at depression bar, depression bar, through gland, makes spring be fixed between valve gap and gland.
2. the safety valve of a kind of high sealing performance as claimed in claim 1, is characterized by, and described gland is provided with adjusting grooves, and described adjusting grooves becomes in-line structure or decussate texture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826545.2A CN105299276B (en) | 2015-11-25 | 2015-11-25 | A kind of safety valve of high sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826545.2A CN105299276B (en) | 2015-11-25 | 2015-11-25 | A kind of safety valve of high sealing performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105299276A true CN105299276A (en) | 2016-02-03 |
| CN105299276B CN105299276B (en) | 2018-02-06 |
Family
ID=55196881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510826545.2A Active CN105299276B (en) | 2015-11-25 | 2015-11-25 | A kind of safety valve of high sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105299276B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523151A (en) * | 2016-12-27 | 2017-03-22 | 中国船舶重工集团公司第七研究所 | Fuel oil leakage positioning system and fuel oil leakage alarm system for marine diesel engine |
| CN109555880A (en) * | 2018-10-18 | 2019-04-02 | 华东矿用设备有限公司 | A kind of high-sealing safety valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030089406A1 (en) * | 2001-10-04 | 2003-05-15 | Gunther Pozgainer | Pressure control valve for a fuel tank |
| US6664572B2 (en) * | 2001-07-23 | 2003-12-16 | Hp&T Products, Inc. | Valve seal assemblies and methods |
| CN2746238Y (en) * | 2004-10-08 | 2005-12-14 | 吴纯才 | Water inlet socket |
| US7143783B2 (en) * | 2004-08-13 | 2006-12-05 | Siegfried Emke | Fuel tank cap safety valve with splash control and overpressure release |
| CN101818809A (en) * | 2010-04-27 | 2010-09-01 | 常州朗博汽车零部件有限公司 | Double-lip sealing ring for rotary shaft of air conditioner compressor |
| CN202756712U (en) * | 2012-05-23 | 2013-02-27 | 钟国强 | 360-degree rotating water saver |
| CN205260937U (en) * | 2015-11-25 | 2016-05-25 | 江苏华太电力仪表有限公司 | Relief valve of high leakproofness ability |
-
2015
- 2015-11-25 CN CN201510826545.2A patent/CN105299276B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6664572B2 (en) * | 2001-07-23 | 2003-12-16 | Hp&T Products, Inc. | Valve seal assemblies and methods |
| US20030089406A1 (en) * | 2001-10-04 | 2003-05-15 | Gunther Pozgainer | Pressure control valve for a fuel tank |
| US7143783B2 (en) * | 2004-08-13 | 2006-12-05 | Siegfried Emke | Fuel tank cap safety valve with splash control and overpressure release |
| CN2746238Y (en) * | 2004-10-08 | 2005-12-14 | 吴纯才 | Water inlet socket |
| CN101818809A (en) * | 2010-04-27 | 2010-09-01 | 常州朗博汽车零部件有限公司 | Double-lip sealing ring for rotary shaft of air conditioner compressor |
| CN202756712U (en) * | 2012-05-23 | 2013-02-27 | 钟国强 | 360-degree rotating water saver |
| CN205260937U (en) * | 2015-11-25 | 2016-05-25 | 江苏华太电力仪表有限公司 | Relief valve of high leakproofness ability |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523151A (en) * | 2016-12-27 | 2017-03-22 | 中国船舶重工集团公司第七研究所 | Fuel oil leakage positioning system and fuel oil leakage alarm system for marine diesel engine |
| CN109555880A (en) * | 2018-10-18 | 2019-04-02 | 华东矿用设备有限公司 | A kind of high-sealing safety valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105299276B (en) | 2018-02-06 |
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