CN109114270A - A kind of isolated pressure breather valve - Google Patents
A kind of isolated pressure breather valve Download PDFInfo
- Publication number
- CN109114270A CN109114270A CN201811297393.1A CN201811297393A CN109114270A CN 109114270 A CN109114270 A CN 109114270A CN 201811297393 A CN201811297393 A CN 201811297393A CN 109114270 A CN109114270 A CN 109114270A
- Authority
- CN
- China
- Prior art keywords
- piston
- gas chamber
- valve body
- gas
- air
- 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
-
- 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
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
- F16K17/196—Equalising valves predominantly for tanks spring-loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates to breather valve fields, more particularly to a kind of isolated pressure breather valve, the piston for including: valve body and being slided up and down in valve body along valve interior wall, the valve body is divided into expiration gas chamber and air-breathing gas chamber by piston, when system gas pressure changes, piston can automatically adjust, air-breathing gas chamber is accordingly discharged or sucks gas, air pressure in system is set to keep balance, it breathes out gas chamber and sucking gas chamber is not connected, ambient atmos cannot be introduced into equipment, completely cut off extraneous fuel gas and polluted gas, meet explosion-proof requirement, guarantees the safety of equipment.
Description
Technical field
The present invention relates to breather valve field more particularly to a kind of isolated pressure breather valves.
Background technique
Breather valve, mostly in the equipment applied to container or containing confined space, when container or equipment internal pressure become
When change, guarantees the balance of container or equipment air pressure inside by the sucking of discharge and extraneous gas to internal gas, guarantee
The leakproofness and waterproof performance of container or equipment.
Although existing breather valve can guarantee the balance of air pressure in container or equipment, directly communicated with outside atmosphere,
Carry out the exhalation and sucking of gas, once there are fuel gas or polluted gas around container or equipment, can make fuel gas or
Polluted gas is inhaled into, and influences the safety of container or equipment.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, a kind of isolated pressure is provided
Breather valve.
The present invention is to be achieved by the following technical programs:
A kind of isolated pressure breather valve characterized by comprising valve body and glide along valve interior wall in valve body
Dynamic piston,
The valve body is divided into expiration gas chamber and air-breathing gas chamber by piston, and the expiration gas chamber is by being set to exhaling on valve body
Tracheae is connected to equipment, and the air-breathing gas chamber is connected to by the air intake duct being set on valve body with ambient atmosphere, expiration gas chamber and suction
Gas gas chamber is not connected.
Preferably, the piston includes upper piston and lower piston, and it is affixed to pass through connecting rod between upper piston and lower piston.
Preferably, lubricating oil is filled in the cavity between the upper piston and lower piston.
Preferably, spring is equipped between the both ends and piston of valve body, the both ends of the spring are against valve body and work respectively
Beyond the Great Wall.
The beneficial effects of the present invention are:
When system gas pressure changes, piston can be automatically adjusted, and air-breathing gas chamber is accordingly discharged or sucks gas, make system
Interior air pressure keeps balance, and exhalation gas chamber and sucking gas chamber are not connected, and ambient atmos cannot be introduced into equipment, completely cuts off the external world
Fuel gas and polluted gas meet explosion-proof requirement, guarantee the safety of equipment.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention.
In figure: 1. valve bodies, 2. expiration gas chambers, 3. air-breathing gas chambers, 4. exhaust tubes, 5. air intake ducts, 6. upper pistons, 7. lower work
Plug, 8. connecting rods, 9. lubricating oil, 10. springs.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing and most
The present invention is described in further detail for good embodiment.
As shown, the present invention includes: valve body 1 and the piston that slides up and down in valve body along valve interior wall,
The valve body is divided into expiration gas chamber 2 and air-breathing gas chamber 3 by piston, and the expiration gas chamber is by being set on valve body
Exhaust tube 4 is connected to equipment, and the air-breathing gas chamber is connected to by the air intake duct 5 being set on valve body with ambient atmosphere, expiration gas chamber
Not connected with air-breathing gas chamber, according to The Ideal-Gas Equation pV=nRT, wherein p refers to the pressure of perfect gas, and V is reason
Think the volume of gas, n indicates the amount of container or equipment internal gas substance, and T indicates the thermodynamic temperature of perfect gas, and R is reason
Think that gas constant, container or equipment air pressure inside are identical as external atmosphere pressure always under valve body effect, it is assumed that perfect gas
Pressure p is constant, then container or equipment internal gas are T in ambient temperature range0-TtWhen volume change be V '=nR (T0-
Tt)/p, to prevent container or equipment air pressure inside from changing, the volume of body cavity should be not less than V '.
Piston in the present embodiment includes upper piston 6 and lower piston 7, is consolidated between upper piston and lower piston by connecting rod 8
It connects, guarantees the balance of piston.
Preferably, be filled with lubricating oil 9 in the cavity between the upper piston and lower piston, piston during the motion,
Lubricating oil is contacted with body wall, can play the role of lubrication, keeps piston motion more smooth, while improving piston and valve
Leakproofness between body prevents that gas circulation occurs between expiration gas chamber and air-breathing gas chamber.
Preferably, be equipped with spring 10 between the both ends and piston of valve body, the both ends of the spring be against respectively valve body and
On piston, piston upper and lower ends are equipped with identical spring can make piston be in valve body middle position when assembling breather valve,
So that the up and down motion for piston provides enough spaces, spring used in the present embodiment is smaller, when being only used for assembly
Piston is set to be in valve body middle position, the movement of piston when will not influence system gas buckling.
When system gas pressure changes, piston can be automatically adjusted, and air-breathing gas chamber is accordingly discharged or sucks gas, make system
Interior air pressure keeps balance, and when air pressure increases in device systems, gas enters the expiration gas chamber of breather valve, and piston moves down, air-breathing
Gas is discharged in gas chamber；When air pressure reduces in device systems, in the expiration gas chamber of breather valve in gas into devices, piston is moved up,
Air-breathing gas chamber sucks gas from ambient atmosphere, and exhalation gas chamber and sucking gas chamber are not connected, and ambient atmos cannot be introduced into equipment
It is interior, completely cut off extraneous fuel gas and polluted gas.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of isolated pressure breather valve characterized by comprising valve body and slided up and down in valve body along valve interior wall
Piston,
The valve body is divided into expiration gas chamber and air-breathing gas chamber by piston, and the expiration gas chamber passes through the exhaust tube on valve body
It is connected to equipment, the air-breathing gas chamber is connected to by the air intake duct being set on valve body with ambient atmosphere, expiration gas chamber and air-breathing gas
Room is not connected.
2. a kind of isolated pressure breather valve according to claim 1, which is characterized in that the piston include upper piston and
Lower piston, it is affixed by connecting rod between upper piston and lower piston.
3. a kind of isolated pressure breather valve according to claim 2, which is characterized in that the upper piston and lower piston it
Between cavity in be filled with lubricating oil.
4. a kind of isolated pressure breather valve according to claim 1 to 3, which is characterized in that the both ends of valve body and work
Spring is equipped between plug, the both ends of the spring are against respectively on valve body and piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811297393.1A CN109114270A (en) | 2018-11-01 | 2018-11-01 | A kind of isolated pressure breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811297393.1A CN109114270A (en) | 2018-11-01 | 2018-11-01 | A kind of isolated pressure breather valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109114270A true CN109114270A (en) | 2019-01-01 |
Family
ID=64856056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811297393.1A Pending CN109114270A (en) | 2018-11-01 | 2018-11-01 | A kind of isolated pressure breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109114270A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847117A (en) * | 2019-01-31 | 2019-06-07 | 贵州省骨科医院 | A kind of Manpower sputum aspirator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4416119B4 (en) * | 1994-05-06 | 2006-02-09 | Mahle Filtersysteme Gmbh | Crankcase ventilation valve |
| US20110160683A1 (en) * | 2008-04-17 | 2011-06-30 | Marcos Pinotti Barbosa | Device for controlling and monitoring vacuum pressure in systems for the suction of biological secretions |
| CN202140368U (en) * | 2011-06-16 | 2012-02-08 | 北汽福田汽车股份有限公司 | Cylinder structure |
| CN205559905U (en) * | 2016-02-26 | 2016-09-07 | 舍弗勒技术股份两合公司 | Sealed breather valve |
| CN205938032U (en) * | 2016-08-02 | 2017-02-08 | 安徽工程大学 | Fuel tank cap of adjustable inside and outside atmospheric pressure |
| CN206017928U (en) * | 2016-07-06 | 2017-03-15 | 深圳市沃特玛电池有限公司 | A kind of breather valve |
-
2018
- 2018-11-01 CN CN201811297393.1A patent/CN109114270A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4416119B4 (en) * | 1994-05-06 | 2006-02-09 | Mahle Filtersysteme Gmbh | Crankcase ventilation valve |
| US20110160683A1 (en) * | 2008-04-17 | 2011-06-30 | Marcos Pinotti Barbosa | Device for controlling and monitoring vacuum pressure in systems for the suction of biological secretions |
| CN202140368U (en) * | 2011-06-16 | 2012-02-08 | 北汽福田汽车股份有限公司 | Cylinder structure |
| CN205559905U (en) * | 2016-02-26 | 2016-09-07 | 舍弗勒技术股份两合公司 | Sealed breather valve |
| CN206017928U (en) * | 2016-07-06 | 2017-03-15 | 深圳市沃特玛电池有限公司 | A kind of breather valve |
| CN205938032U (en) * | 2016-08-02 | 2017-02-08 | 安徽工程大学 | Fuel tank cap of adjustable inside and outside atmospheric pressure |
Non-Patent Citations (1)
| Title |
|---|
| 周贺: "《汽车材料》", 31 May 2017 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847117A (en) * | 2019-01-31 | 2019-06-07 | 贵州省骨科医院 | A kind of Manpower sputum aspirator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205978248U (en) | Hydraulic damping bumper shock absorber | |
| CN204420239U (en) | Round-the-clock fire-retardant breather valve | |
| CN109114270A (en) | A kind of isolated pressure breather valve | |
| CN104183366A (en) | Transformer rebreather structure | |
| CN207906537U (en) | PCV valve, engine and vehicle | |
| GB478591A (en) | Improvements in or relating to resilient struts, more especially for use in connection with the landing wheels of aircraft | |
| CN202914419U (en) | Prepressing-type hydraulic oil tank suitable for hydraulic system of mine self-discharging vehicle and hydraulic system of heavy-load self-discharging truck | |
| CN210096833U (en) | Breathe internal medicine vital capacity trainer | |
| CN109319099B (en) | Extension stroke becomes oilhole undercarriage buffer | |
| CN103410704A (en) | Self-intake type air cylinder and air compressor provided with self-intake type air cylinder | |
| CN108999909A (en) | A kind of nitrogen device | |
| CN109253292A (en) | A kind of ship vent valve and air pressure balance method | |
| CN209100542U (en) | A kind of damper | |
| CN106437943A (en) | Multi-cylinder diesel engine hung-out respirator structure | |
| CN204050710U (en) | Compressed oxygen self-lifesaving device | |
| CN109832669A (en) | A kind of electronic cigarette leakproof oil fogger | |
| CN209587020U (en) | Damping shock absorber | |
| CN109172967B (en) | Rotary locking type marine respirator | |
| CN207609706U (en) | Internal breathing spring braking air chamber | |
| CN202090989U (en) | Energy-saving respirator of engine | |
| CN207917684U (en) | A kind of dust-proof breather valve of petroleum storage tank back-fire relief | |
| CN109386344A (en) | The engine oil filling cap being integrated with crankcase safety valve | |
| CN207984562U (en) | A kind of automotive oil tank of high stability | |
| CN110466785A (en) | A kind of ventilation fuel tank that gas exchanges effect is good | |
| CN205738102U (en) | Airborne pneumatic lifesaving goods and materials grenade instrumentation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190101 |