CN105090576A - Relief valve - Google Patents
Relief valve Download PDFInfo
- Publication number
- CN105090576A CN105090576A CN201510522086.9A CN201510522086A CN105090576A CN 105090576 A CN105090576 A CN 105090576A CN 201510522086 A CN201510522086 A CN 201510522086A CN 105090576 A CN105090576 A CN 105090576A
- Authority
- CN
- China
- Prior art keywords
- piston
- sealing gasket
- nut
- main shaft
- valve body
- 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
Links
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
- F16K17/0486—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 mechanical actuating means
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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
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal 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
- 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
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a relief valve adopting a pressurization driving piston structure, and belongs to the field of firefighting control. The relief valve consists of an ejector rod, a nut, a piston, a valve body, a main shaft, a sealing gasket, a cover nut, an output joint, an O-shaped ring., a spring, a driving joint and a handle, wherein the sealing gasket is embedded in a groove of the cover nut, and is tightened at the tail end of the main shaft; the O-shaped ring coats outer circle grooves of the main shaft and the piston; the main shaft and the piston are tightened through threads, and are mounted in holes of the valve body; the spring is between the valve body and the piston; the nut is tightened at the top of the valve body; the ejector rod is inserted in the nut; the handle is screwed at the top of the ejector rod; pressurization driving and spring returning action mechanisms are adopted; at ordinary times, the spring is ejected to the piston, so that the sealing gasket is contacted and sealed with a sealing convex ring of the valve body; in actions, a driving medium is leaded to the upper side of the piston, and the sealing gasket is opened under the effect of the piston; the driving medium is released, and the sealing gasket is closed by the effect of spring force; the wrong opening of an electromagnetic valve in the fluctuation of a firefighting water source is solved; the effect of controlling high-pressure water by low-pressure air is realized; and the relief valve is wide in application prospect in electric power, metallurgy, subways and tunnels.
Description
Technical field
The novel one that relates to of the present invention is in water spray, fine water mist fire-extinguishing system, by pneumatic, Non-follow control, make fire water supply one direction flow into the relief valve of fire-fighting main control valve, adopt pressurised driving piston structure, adopt the action mechanism of pressurised driving, spring reset, belong to fire-fighting control field.
Background technique
Current relief valve, adopts solenoid valve or manual ball valve.When fire water supply fluctuates, solenoid valve is pushed open by peak pulse often, and opening by mistake when causing non-fire opens the accident of spurting, and impact just produces, causes serious water damage.Manual ball valve does not possess automatic control function and remote-controlled operation function, at large-scale zone of protections such as metallurgy, electric power, petrochemical industry, tunnel, subways, the place that fire water supply shares, troublesome maintenance, misoperation is spurted and is often occurred, and causes unnecessary economic loss.
Summary of the invention
In order to solve the misoperation control accident of solenoid valve, realizing pneumatic/manual and controlling; The present invention is novel provides a kind of relief valve, and rated working pressure reaches 2.5MPa; Adopt the action mechanism of pressurised driving, spring reset; By: push rod (1), nut (2), piston (3), valve body (4), main shaft (5), sealing gasket (6), cap nut (7), out splice going splice (8), O type circle (9), spring (10), drive sub (11), handle (12) form.Sealing gasket is flush-mounted in cap nut groove, is tightened against main shaft end, and O type snare is in main shaft, outside piston groove, and main shaft and piston, by screwed tight, are arranged in valve body hole; Spring housing is between valve body and piston, and nut is in body top, and push rod plug is in nut, and handle is spun on push rod head; Spring push piston at ordinary times, makes sealing gasket contact with valve seal bulge loop and seals, isolation fire water supply; During action, driven medium caused on the upside of piston, sealing gasket is opened under piston action; Release driven medium, sealing gasket is closed by spring-force driven dual.
Novel being achieved in that of the present invention is made up of push rod, nut, piston, valve body, main shaft, sealing gasket, cap nut, out splice going splice, O type circle, spring, drive sub, handle.Sealing gasket is flush-mounted in cap nut groove, is tightened against main shaft end, and O type snare is in main shaft, outside piston groove, and main shaft and piston, by screwed tight, are arranged in valve body hole; Spring housing is between valve body and piston, and nut is in body top, and push rod plug is in nut, and handle is spun on push rod head; Spring push piston at ordinary times, makes sealing gasket contact with valve seal bulge loop and seals; During action, driven medium caused on the upside of piston, sealing gasket is opened under piston action; Release driven medium, sealing gasket is closed by spring-force driven dual.
The novel beneficial effect of the present invention is: relief valve is when the big ups and downs of fire water supply pressure, sealing state can be remained, avoid seepage, open by mistake and open, decrease maintenance work amount, reach remote control function, improve rated working pressure, achieve the effect being controlled high pressure water by low pressure gas.
Accompanying drawing explanation
Further illustrate the present invention is novel below in conjunction with drawings and Examples.
Fig. 1 is the novel sectional drawing of the present invention.
Fig. 2 be invention novel in valve body sectional drawing.
Fig. 3 be the present invention novel in main shaft sectional drawing.
Fig. 4 be the present invention novel in cap nut sectional drawing.
Embodiment
Sealing gasket is flush-mounted in cap nut groove, is tightened against main shaft end, and O type snare is in main shaft, outside piston groove, and main shaft and piston, by screwed tight, are arranged in valve body hole; Spring housing is between valve body and piston, and nut, in body top, is sealed by O type circle; Push rod plug is in nut, and sealed by O type circle, push rod head inserts in piston counterbore; Handle is spun on push rod head; Drive sub is welded on valve body and drives mouth place, and out splice going splice is welded on valve body equipped at outlet port; Adopt the action mechanism of pressurised driving, spring reset, spring push piston at ordinary times, makes sealing gasket contact with valve seal bulge loop and seals, isolation fire water supply; During action, cause on the upside of piston by driven medium from driving interface, sealing gasket is opened under piston action, or press lower handle, sealing gasket is opened, and the space of fire water supply through the gap between sealing gasket and valve seal bulge loop, between main shaft and valve body, flows out from out splice going splice internal channel; Release driven medium, sealing gasket closes sealing by spring-force driven dual, isolation fire water supply.Inside the import screw thread of valve body, design machined sealing bulge loop, and stage casing machined vent, avoids piston to suppress resistance, top machined the screw thread with nut screw connection, center is spindle hole, piston hole, and spindle hole and piston hole keep concentric, and holes sectional area ratio is 3.5: 1.The center of cap nut is the screw coordinated with main shaft, end face is the groove of setting-in sealing gasket, and groove plane is provided with sealing groove, makes sealing gasket bear high pressure water flow strikes and not get loose, Excircle machining flat filament, is convenient to handling.The technological scheme that its technical problem of the novel solution of the present invention is taked is: by adopting the action mechanism of pressurised driving, spring reset, achieve pneumatic/hand to control by starting, solve the accident that solenoid valve misoperation is spurted, decrease maintenance workload, achieve the effect being controlled high pressure water by low pressure gas.
1) material: push rod, nut, piston, valve body, main shaft, cap nut, out splice going splice, drive sub, spring adopt 316 stainless steels, piston adopts aluminium bronze, and O type circle and sealing gasket adopt nitrile butadiene rubber, handle to adopt engineering nylon.
2) rated working pressure: 2.5MPa.
3) valve body hydraulic pressure intensity: 5.0MPa, non-leakage, indeformable.
4) opening time :≤10S; Reset shut-in time :≤5S.
5) driven medium: air, nitrogen.
6) driving pressure :≤1.0MPa.
Claims (3)
1. a relief valve, it is characterized in that adopting pressurised driving piston structure, by pneumatic, Non-follow control, make fire water supply enter main control valve, relief valve by: push rod (1), nut (2), piston (3), valve body (4), main shaft (5), sealing gasket (6), cap nut (7), out splice going splice (8), O type circle (9), spring (10), drive sub (11), handle (12) form; Sealing gasket is flush-mounted in cap nut groove, is tightened against main shaft end, and O type snare is in main shaft, outside piston groove, and main shaft and piston, by screwed tight, are arranged in valve body hole; Spring housing is between valve body and piston, and nut is in body top, and push rod plug is in nut, and handle is spun on push rod head; Spring push piston at ordinary times, makes sealing gasket contact with valve seal bulge loop and seals; During action, driven medium caused on the upside of piston, sealing gasket is opened under piston action; Release driven medium, is closed by spring-force driven dual.
2. relief valve according to claim 1, is characterized in that valve body, and devise sealing bulge loop inside import screw thread, stage casing machined vent, and top machined the screw thread with nut screw connection, and center is spindle hole, piston hole.
3. relief valve according to claim 1, is characterized in that cap nut, and center is the screw coordinated with main shaft, end face is the groove of setting-in sealing gasket, and groove plane is provided with sealing groove, Excircle machining flat filament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510522086.9A CN105090576A (en) | 2015-08-20 | 2015-08-20 | Relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510522086.9A CN105090576A (en) | 2015-08-20 | 2015-08-20 | Relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105090576A true CN105090576A (en) | 2015-11-25 |
Family
ID=54571614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510522086.9A Pending CN105090576A (en) | 2015-08-20 | 2015-08-20 | Relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105090576A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485384A (en) * | 2015-12-11 | 2016-04-13 | 广州耐雪制冷设备有限公司 | Safe universal hot water valve |
| CN109296756A (en) * | 2018-12-07 | 2019-02-01 | 江西洪都航空工业集团有限责任公司 | A kind of gas movable sealing structure for aviation field |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2126353U (en) * | 1992-05-31 | 1992-12-30 | 陈淳林 | Static-sealing type stop valve of pressure gauge |
| CN202418600U (en) * | 2011-11-15 | 2012-09-05 | 上海磊诺工业气体有限公司 | Dry-type drive valve |
| CN204985890U (en) * | 2015-08-20 | 2016-01-20 | 快达消防科技有限公司 | Release valve |
-
2015
- 2015-08-20 CN CN201510522086.9A patent/CN105090576A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2126353U (en) * | 1992-05-31 | 1992-12-30 | 陈淳林 | Static-sealing type stop valve of pressure gauge |
| CN202418600U (en) * | 2011-11-15 | 2012-09-05 | 上海磊诺工业气体有限公司 | Dry-type drive valve |
| CN204985890U (en) * | 2015-08-20 | 2016-01-20 | 快达消防科技有限公司 | Release valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485384A (en) * | 2015-12-11 | 2016-04-13 | 广州耐雪制冷设备有限公司 | Safe universal hot water valve |
| CN109296756A (en) * | 2018-12-07 | 2019-02-01 | 江西洪都航空工业集团有限责任公司 | A kind of gas movable sealing structure for aviation field |
| CN109296756B (en) * | 2018-12-07 | 2024-04-02 | 江西洪都航空工业集团有限责任公司 | Gas movable sealing structure for aviation field |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151125 |