CN217842837U - Totally-enclosed adjustable breather valve - Google Patents
Totally-enclosed adjustable breather valve Download PDFInfo
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- CN217842837U CN217842837U CN202221874130.4U CN202221874130U CN217842837U CN 217842837 U CN217842837 U CN 217842837U CN 202221874130 U CN202221874130 U CN 202221874130U CN 217842837 U CN217842837 U CN 217842837U
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- spring
- valve core
- core
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- 230000004888 barrier function Effects 0.000 claims abstract description 11
- 230000000241 respiratory effect Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 16
- 230000003434 inspiratory effect Effects 0.000 claims description 10
- 238000000746 purification Methods 0.000 claims description 8
- 210000002445 nipple Anatomy 0.000 claims description 6
- 239000000126 substance Substances 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 21
- 230000029058 respiratory gaseous exchange Effects 0.000 description 20
- 239000007788 liquid Substances 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a totally-enclosed regulating breather valve, wherein, two ends of a valve body are respectively provided with a breather valve port, a group of breather valve cores which can move up and down and are matched with each other is arranged in the valve body, a breather valve upper cavity is formed between the breather valve core and the valve body, and a breather valve lower cavity is formed between the breather valve core and the valve body; a circle of raised barrier strips matched with the exhalation valve core are arranged on the inner side wall of the valve body, an upper respiratory valve channel capable of being opened and closed is formed between the exhalation valve core and the raised barrier strips, and a lower respiratory valve channel capable of being opened and closed is formed between the inhalation valve core and the exhalation valve core; the valve body is internally provided with a spring seat, and the spring seat is respectively provided with an expiration spring matched with the expiration valve core and an inspiration spring matched with the inspiration valve core. When the breather valve is used, through the improvement of the structure, the storage tank connected with the breather valve can not be in overpressure or vacuum, the pressure of the storage tank can be automatically balanced, and meanwhile, the breather valve can be totally closed, so that the harmful substances are prevented from overflowing.
Description
Technical Field
The utility model relates to a technical field of breather valve, in particular to totally closed regulation type breather valve especially relates to expiration gas can preliminary treatment, open and close the totally closed breather valve of structure with adjustable pressure.
Background
A breather valve is a device that maintains the tank space isolated from the atmosphere over a range of pressures, and open to the outside atmosphere at pressures above or below this range. The function of the breather valve is to prevent the storage tank from being damaged due to overpressure or vacuum, and simultaneously, the evaporation loss of the storage tank can be reduced.
Currently, in the market, the air suction and exhaust of the breather valve are generally directed to the atmosphere, however, for some special environments, such as toxic and storage tank liquid containing radiation, if the evaporation of the stored liquid is directed to the atmosphere, the environment is damaged to a certain extent, and the storage tank liquid must be collected and disposed. In addition, the suction and exhaust pressure of the existing breather valve is generally fixed, and the breather valve cannot be adjusted when the working condition changes, so that the operation is not changed.
Therefore, a novel fully-closed breather valve capable of adjusting opening and closing pressure is urgently needed in the market.
Disclosure of Invention
The utility model aims at the above problem, a totally closed regulation type breather valve is provided, through the improvement of structure for the basin that links to each other with the breather valve can not superpressure or vacuum, and the breather valve can carry out totally closed simultaneously, prevents that harmful substance is excessive, and the breather valve can also adjust and open and close pressure.
The purpose of the utility model can be realized by the following technical scheme: a totally-enclosed adjustable breather valve comprises a valve body and a valve cover matched with the valve body, and is characterized in that two ends of the valve body are respectively provided with a breather valve port, a group of mutually matched breather valve cores and inspiratory valve cores which can move up and down are arranged in the valve body, a breather valve upper cavity is formed between the breather valve cores and the valve body, and a breather valve lower cavity is formed between the inspiratory valve cores and the valve body; a circle of raised barrier strips matched with the expiratory valve core are arranged on the inner side wall of the valve body, an upper passage of the respiratory valve capable of being opened and closed is formed between the expiratory valve core and the raised barrier strips, and a lower passage of the respiratory valve capable of being opened and closed is formed between the inspiratory valve core and the expiratory valve core; the valve body is internally provided with a spring seat, and the spring seat is respectively provided with an expiration spring matched with the expiration valve core and an inspiration spring matched with the inspiration valve core.
Preferably, the air ports of the two breather valves are respectively sleeved with an inner joint, the inner joint at one end is connected with the storage tank, and the inner joint at the other end is connected with the external atmosphere through a gas purification system.
Furthermore, the inhalation valve core comprises a column part and a disc part arranged around the column part, the exhalation valve core is sleeved on the column part, the bottom of the exhalation valve core is provided with a circle of sealing groove, a gasket is arranged in the sealing groove, the edge of the disc part is provided with a circle of sealing strip protruding upwards, and the positions of the sealing strip and the protruding stop strip are matched with the position of the gasket.
Further, the spring holder is equipped with expiration spring standing groove and the spring standing groove of breathing in, is used for placing expiration spring and the spring of breathing in respectively, is equipped with the regulation circle that can upper and lower rotation in the expiration spring standing groove, and the regulation circle offsets with the one end of expiration spring.
Furthermore, a valve cap is sleeved on the valve cap, a valve cap gasket is arranged between the valve cap and the valve body, and a valve cap gasket is arranged between the valve cap and the valve body.
Compared with the prior art, the technical scheme of the utility model except whole technical scheme's improvement, still include the improvement in the aspect of many details, particularly, have following beneficial effect:
1. the improved scheme of the utility model, a group of breathing valve core and breathing valve core which can move up and down and are matched with each other are arranged in the valve body, a breathing valve upper cavity is formed between the breathing valve core and the valve body, a breathing valve lower cavity is formed between the breathing valve core and the valve body, the breathing valve upper channel which can be opened and closed is formed by the movement of the breathing valve core, a breathing valve lower channel which can be opened and closed is formed between the breathing valve core and the breathing valve core, the pressure in the storage tank can be adjusted, the overpressure or vacuum is avoided, and the evaporation loss of the stored liquid is reduced;
2. in the technical scheme of the utility model, an adjusting ring which can rotate up and down is arranged in the expiratory spring placing groove, the adjusting ring is propped against one end of the expiratory spring, and the pressing degree of the expiratory spring can be controlled by rotating the adjusting ring, thereby controlling the pressing force acted on the expiratory valve core; the upper part and the lower part of the spring seat can be controlled by adjusting the hexagon nut, so that the pressing force of the air suction valve core is controlled, the opening and closing pressure of the breather valve can be easily adjusted, and the operation and the construction are convenient;
3. in the structure of the utility model, the breather valve can perform totally-enclosed protection aiming at toxic and harmful gases under special working conditions, and prevent the harmful gases from overflowing through the breather valve to cause environmental pollution;
4. the utility model discloses structural configuration is reasonable, and the effect is showing, and it is convenient, facilitate promotion and utilization to install the maintenance.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the working state of the breather valve when the storage tank is at negative pressure.
Fig. 3 is a schematic view of the working state of the breather valve when the storage tank is in high pressure.
The labels in the figure are as follows:
1. the automatic air valve comprises an inner joint, a joint nut 2, a joint gasket 3, a valve body 4, a valve cover gasket 5, a bolt 6, a valve cover 7, a valve cover gasket 8, a valve cover 9, a hexagon nut 10, a spring seat 11, an adjusting ring 12, an air suction spring 13, an air expiration spring 14, an air expiration valve core 15, an air suction valve core 16, an anti-rotation pin 17, a convex stop strip 18 and a sealing strip 19.
Detailed Description
The following detailed description of the embodiments of the invention, taken in conjunction with the accompanying drawings, will make it clear to those skilled in the art how the invention may be practiced. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not limiting, of the scope of the invention.
As shown in fig. 1, a totally-enclosed adjustable breather valve comprises a valve body 4 and a valve cover 7 matched with the valve body, and is different from the prior art in that two ends of the valve body 4 are respectively provided with a breather valve port, a group of expiration valve cores 15 and inspiration valve cores 16 which can move up and down and are matched with each other are arranged in the valve body, an upper breather valve cavity is formed between the expiration valve cores and the upper half part of the valve body, and a lower breather valve cavity is formed between the inspiration valve cores and the lower half part of the valve body; a circle of raised barrier strips matched with the expiratory valve core are arranged on the inner side wall of the valve body, an upper passage of the respiratory valve capable of being opened and closed is formed between the expiratory valve core and the raised barrier strips through the movement of the expiratory valve core, and a lower passage of the respiratory valve capable of being opened and closed is formed between the inspiratory valve core and the expiratory valve core through the movement of the inspiratory valve core; a spring seat 11 is arranged in the valve body, and an expiration spring 14 matched with the expiration valve core and an inspiration spring 13 matched with the inspiration valve core are respectively arranged on the spring seat.
In the implementation, one of the breather valve air ports at the two ends of the valve body is connected with the storage tank through welding, and the other breather valve air port is connected with the gas purification system, so that the gas exhausted by the valve body is ensured not to have harmful substances and pollute the atmosphere. During specific operation, when the storage tank has negative pressure, the air suction valve core moves downwards to open the lower passage of the breather valve, outside air is supplemented to enter the storage tank, the negative pressure is broken, and the original pressure set value of the storage tank is recovered. When the pressure in the storage tank is too high, the breathing valve core and the breathing valve core move upwards together, and the upper passage of the breathing valve is opened, so that the high-pressure gas in the storage tank is discharged out of the tank body after being treated by the gas purification system, and the high pressure in the storage tank is released.
Example 1
A totally-enclosed adjustable breather valve comprises a valve body 4 and a valve cover 7 matched with the valve body, wherein two ends of the valve body are respectively provided with a breather valve port, a group of expiration valve cores 15 and inspiration valve cores 16 which can move up and down and are matched with each other are arranged in the valve body, a breather valve upper cavity is formed between the expiration valve cores and the valve body, and a breather valve lower cavity is formed between the inspiration valve cores and the valve body; a circle of raised barrier strips 18 matched with the expiratory valve core are arranged on the inner side wall of the valve body, an upper passage of the respiratory valve capable of being opened and closed is formed between the expiratory valve core and the raised barrier strips, and a lower passage of the respiratory valve capable of being opened and closed is formed between the inspiratory valve core and the expiratory valve core; the valve body is internally provided with a spring seat 11, and the spring seat is respectively provided with an expiration spring 14 matched with the expiration valve core and an inspiration spring 13 matched with the inspiration valve core.
Particularly, the air ports of the two breather valves are respectively sleeved with an inner joint, the inner joint 1 at one end is connected with the storage tank, and the inner joint at the other end is connected with the external atmosphere through a gas purification system. The inner joint is connected with the air port of the breather valve through a joint nut. The inhalation valve core comprises a column part and a disc part arranged around the column part, the exhalation valve core is sleeved on the column part, the bottom of the exhalation valve core is provided with a circle of sealing groove, a gasket is arranged in the sealing groove, the edge of the disc part is provided with a circle of sealing strip 19 protruding upwards, and the positions of the sealing strip and the protruding stop strip are matched with the position of the gasket. The stand column part of the expiration valve core is provided with an anti-rotation pin, and the top of the stand column part is connected with a spring seat 11 in a screwing mode through a hexagon nut 10.
Further, the spring holder is equipped with exhale spring standing groove and the spring standing groove of breathing in, is used for placing exhale spring and the spring of breathing in respectively, is equipped with the regulation circle 12 that can upper and lower rotation in the exhale spring standing groove, and the regulation circle offsets with the one end of exhaling the spring. The valve cap is sleeved with a valve cap 9, a valve cap gasket 8 is arranged between the valve cap and the valve body, and a valve cap gasket 5 is arranged between the valve cap and the valve body.
Example 2
Before operation, the inner joint 1 and the inlet and the outlet of the breather valve are connected into a whole through a joint nut. The other end of the nipple is connected to the storage tank and the gas purification system by welding.
When the storage tank is lower than the set suction pressure value (vacuum), as shown in fig. 2, the pressure in the lower cavity of the breathing valve is lower than that in the upper cavity, the suction valve core 16 overcomes the elasticity of the suction spring 13 under the push of the pressure difference, the suction valve core is separated from the contact surface, the lower channel of the breathing valve is opened, the external gas is supplemented into the storage tank through the opening, the vacuum is broken, and the original pressure set value of the storage tank is recovered. At this time, the exhalation valve core 15 is in a closed position under the action of pressure difference and spring force.
When the storage tank has a value higher than the set expiratory pressure (positive pressure), as shown in fig. 3, the pressure of the lower cavity of the breather valve is higher than that of the upper cavity, the expiratory valve core 15 and the inspiratory valve core 16 overcome the self weight and the elastic force of the expiratory spring 14 under the pushing of the pressure difference, leave the sealing surface of the valve body, open the upper channel of the breather valve, and the high-pressure gas from the storage tank flows out to the outlet of the breather valve through the internal channel. The exhaled gas enters the gas purification system along the outlet connecting pipeline and is discharged to the atmosphere after purification treatment, so that the high pressure of the storage tank is released, and the original exhaled pressure set value is recovered. At this time, the inhalation valve core 16 is attached to the exhalation valve core 15 due to the higher pressure in the lower cavity of the valve body.
When the adjustment of the expiratory pressure needs to be adjusted, the valve cap 9 is rotated and is disassembled. The adjusting ring 12 is rotated, and the pressing degree of the expiratory spring 14 is controlled through the transmission spring of the thread force, so that the pressing force acting on the expiratory valve core is controlled. If the pressing force is large, the opened expiratory pressure is large; conversely, if the pressing force is small, the opened expiratory pressure is small, and the valve is easy to open.
For the adjustment of the air suction pressure, the hexagon nut 10 is rotated to control the lifting of the spring seat 11, so that the compression degree of the air suction spring 13 is controlled, the pressing force of the spring is increased, the more difficult the air suction valve core 16 is opened, the lower vacuum pressure is needed to overcome the spring force, and the air suction action is completed. When the suction spring 13 is relatively relaxed, the pressing force of the spring is reduced, and the easier the suction valve core 16 is opened, the lower the vacuum pressure is not needed to overcome the spring force, and the suction action is completed.
In the range between the opening pressures of the exhalation valve and inhalation valve spools 15 and 16 are kept closed.
A valve cover gasket 5 made of PTFE is arranged between the breather valve cover 7 and the valve body 4 for sealing, and gas is prevented from leaking from the upper cavity. The upper portion of breather valve is equipped with valve cap 9, is equipped with the valve cap gasket 8 of PTFE material between valve cap 9 and valve gap 7, seals, prevents that gas from leaking outward. The valve cover gasket 5 and the valve cover gasket 8 are used for sealing, so that gas media flowing through the breather valve are collected to an outlet pipeline of the breather valve, and the gas overflow of the valve body is avoided.
Through the utility model discloses, not only can prevent that the basin from leading to destroying because of superpressure or vacuum, the reducible evaporation loss who stores liquid carries out totally closed protection to special operating mode gas such as poisonous and harmful simultaneously, prevents that the excessive environmental pollution that causes of breather valve of harmful gas (the evaporation gas who stores liquid). In addition, the opening and closing pressure of the breather valve can be adjusted without dismantling a pipeline according to the field working condition, and the operation and maintenance are more convenient.
It should be noted that many variations and modifications of the embodiments of the present invention are possible, and are not limited to the specific examples of the above embodiments. The above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. In conclusion, the scope of the present invention shall include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art, and shall be subject to the appended claims.
Claims (7)
1. A totally-enclosed adjustable breather valve comprises a valve body and a valve cover matched with the valve body, and is characterized in that two ends of the valve body are respectively provided with a breather valve port, a group of breather valve cores and an inspiratory valve core which can move up and down and are matched with each other are arranged in the valve body, a breather valve upper cavity is formed between the breather valve cores and the valve body, and a breather valve lower cavity is formed between the inspiratory valve core and the valve body; a circle of raised barrier strips matched with the expiratory valve core are arranged on the inner side wall of the valve body, an upper passage of the respiratory valve capable of being opened and closed is formed between the expiratory valve core and the raised barrier strips, and a lower passage of the respiratory valve capable of being opened and closed is formed between the inspiratory valve core and the expiratory valve core; the valve body is internally provided with a spring seat, and the spring seat is respectively provided with an expiration spring matched with the expiration valve core and an inspiration spring matched with the inspiration valve core.
2. A fully closed adjustable breather valve according to claim 1 where the two breather valve ports are respectively sleeved with nipples, the nipple at one end is connected to the tank and the nipple at the other end is connected to the outside atmosphere through a gas purification system.
3. A fully closed adjustable breather valve according to claim 1, wherein the inspiration valve core comprises a column part and a disc part arranged around the column part, the expiration valve core is sleeved on the column part, the bottom of the expiration valve core is provided with a circle of sealing groove, a gasket is arranged in the sealing groove, the edge of the disc part is provided with a circle of sealing strips protruding upwards, and the positions of the sealing strips and the protruding barrier strips are matched with the position of the gasket.
4. The fully-enclosed adjustable breather valve according to claim 1, wherein the spring seat is provided with an expiration spring placement groove and an inspiration spring placement groove for placing the expiration spring and the inspiration spring, respectively, and an adjusting ring capable of rotating up and down is arranged in the expiration spring placement groove and abuts against one end of the expiration spring.
5. A totally enclosed modulating breather valve according to claim 1, where the valve cover is fitted with a valve cap, a valve cap gasket is provided between the valve cap and the valve body, and a valve cap gasket is provided between the valve cap and the valve body.
6. The fully-closed adjusting breather valve according to claim 3, wherein an anti-rotation pin is arranged on the column part of the expiratory valve core, and the top of the column part is screwed with the spring seat through a hexagonal nut.
7. A totally enclosed modulating breather valve according to claim 2, wherein the connection between the nipple and the breather valve port is via a nipple nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221874130.4U CN217842837U (en) | 2022-07-20 | 2022-07-20 | Totally-enclosed adjustable breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221874130.4U CN217842837U (en) | 2022-07-20 | 2022-07-20 | Totally-enclosed adjustable breather valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217842837U true CN217842837U (en) | 2022-11-18 |
Family
ID=84038766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221874130.4U Active CN217842837U (en) | 2022-07-20 | 2022-07-20 | Totally-enclosed adjustable breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217842837U (en) |
-
2022
- 2022-07-20 CN CN202221874130.4U patent/CN217842837U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A fully enclosed adjustable breathing valve Effective date of registration: 20230703 Granted publication date: 20221118 Pledgee: Bank of Jiangsu Co.,Ltd. Shanghai Qingpu Sub branch Pledgor: SHANGHAI IVCO VALVE CO.,LTD. Registration number: Y2023310000331 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20221118 Pledgee: Bank of Jiangsu Co.,Ltd. Shanghai Qingpu Sub branch Pledgor: SHANGHAI IVCO VALVE CO.,LTD. Registration number: Y2023310000331 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |