CN2279491Y - Constant pressure safe valve - Google Patents
Constant pressure safe valve Download PDFInfo
- Publication number
- CN2279491Y CN2279491Y CN 96223889 CN96223889U CN2279491Y CN 2279491 Y CN2279491 Y CN 2279491Y CN 96223889 CN96223889 CN 96223889 CN 96223889 U CN96223889 U CN 96223889U CN 2279491 Y CN2279491 Y CN 2279491Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- piston
- import
- outlet
- 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
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- Safety Valves (AREA)
Abstract
The utility model relates to a safe valve used for preventing overpressure for liquid and gas pressure containers, which is composed of a valve body and a valve core, wherein, the valve body is a hollow cavity, one end of the valve body is provided with an outlet, and the other end of the valve body is provided with an inlet valve body; the valve core is composed of a valve core body, a valve stem, and a big end of a piston and a small end of a tapered piston. The valve core body is positioned in the valve body, the valve stem passes through the valve core body, one end of the valve stem is connected with the big end of the piston in the shape of a circular plate, and the other end of the valve stem is connected with the small end of the tapered piston. A piston stem is sheathed with a spring, the big end of the piston is abutted against the outlet of the valve body, and the small end of the piston is positioned on the tapered inlet of the inlet valve body. The inlet is communicated with the inlet of an inlet joint, and the side wall of the tapered inlet is communicated with the side wall of the outlet of the valve body through a medium passage in the valve body.
Description
The utility model relates to the safety valve that a kind of safety valve, particularly liquid, gas pressure vessel prevent overvoltage.
At present, at gas, liquid pressure container, as all adopting the security leak valve on boiler, the water heater, the security leak valve is opened automatically and is carried out exhaust or draining when making the pressurized container overvoltage, to reduce pressure, avoid the pressurized container overvoltage to make inner bag impaired, keep the safety pressure in the container.But this security leak valve is kept constant pressure by exhausting air or liquid, and these gases or fluid discharge have caused very big energy waste to space outerpace.And this security leak valve arrangement complexity, the cost height uses inconvenience, and low precision can not play a protective role according to variation in pressure exactly.
The purpose of this utility model is exactly in order to address the above problem, and provides a kind of and need not to discharge gas, liquid can guarantee the constant pressure safety valve that container inner pressure is constant and simple in structure, cost is low, precision is high.
Technical solution of the present utility model:
A kind of constant pressure safety valve, it is made up of valve body and spool, it is characterized in that valve body (1) is cavity body, the one end is outlet (2), the other end is provided with import valve body (3), spool is by valve core (4), valve rod (5) and piston major part (6), tapered piston microcephaly (7) forms, valve core (4) is positioned at valve body (1), valve rod (5) passes valve core (4), the one end links to each other with circular plate type piston major part (6), the other end links to each other with tapered piston microcephaly (7), be set with spring (8) on the piston rod (5), and piston major part (6) is against the outlet (2) of valve body (1) and locates, piston microcephaly (7) is positioned at the taper import (9) of import valve body (3) and locates, this import (9) communicates with the import (11) of inlet union (10), and the sidewall of taper import (9) communicates by the medium channel (12) in the valve body (1) with the sidewall of valve body (1) outlet (2).
The utility model has solved the pressure vessel outlet place and has closed under the situation, in case the problem that the container inner bag is damaged during the rated pressure that the container inlet pressure can bear greater than container can guarantee effectively that the constant pressure in the pressurized container is under the safety pressure.The utility model can open and close automatically according to the pressure of rated pressure requirement or customer requirement, when the air inlet of internal tank, when intake pressure bears pressure safely above it, the utility model is just closed medium channel automatically, guarantee that pressurized container is in the constant pressure state, can not damage its inner bag, and need not exhausting air or liquid medium, saved the energy greatly.And when air inlet, intake pressure during less than safety pressure, the utility model is opened medium channel again automatically, plays the unlatching effect of valve, guarantees that pressurized container is in normal working.The utility model is simple in structure, and cost is low, reliable performance, and the precision height, only needing the size in the medium channel aperture at its water outlet place of adjusting is the size of the safety pressure of the required setting of can regulate, uses very convenient.
Fig. 1 is a structural representation of the present utility model.
As Fig. 1, in the utility model, valve core (4) can be connected in the inner chamber of valve body (1) by worm structure, import valve body (3) also is connected valve body (1) lower end mouth by worm structure, and import valve body (3) outer end with and cap (15) and tightly make it with valve body (1) be an integral body, import valve body (3) lower end is communicated with medium source by inlet union (10).Leave spacing between the upper/lower terminal of valve core (4) and valve body (1) and import valve body (3) respective end, make valve rod (5) can drive that piston major part (6) and tapered piston microcephaly (7) are upper and lower to move, and valve rod (5) is tightly connected by seal ring (13) and valve core (4), to prevent that the hole of outlet (2) by valve core (4) central through bore from directly having one section cavity (14) with a communicate end of the corresponding valve rod of valve core (4) (5) of taper import (9), so that the spring (8) of suit is positioned at this cavity (14) on this section valve rod (5).Spring (8) one ends are against the bottom surface of cavity (14), and the other end is against the lower surface of piston major part (6).The outlet (2) of valve body (1) is provided with internal thread, so that be connected with the import of pressurized container.
Adopting water heater with pressurized container below is that example illustrates working procedure of the present utility model.The outlet (2) of valve body this moment (1) connects the water intake of water heater, and the import (11) of its inlet union (10) links to each other with the water source.When rated pressure that the intake pressure (being discharge pressure of the present utility model) of water heater can bear less than water heater liner, then the piston major part (6) of spool is gone up the elastic force of suffered pressure less than spring (8), then valve rod (5) will export (2) by piston major part (6) and seal, and tapered piston microcephaly (7) throws off with the taper import (9) of import valve body (3), being about to medium channel (12) opens, the water source enters medium channel (12) with regard to the areole by taper import (9), areole by outlet (2) constantly flows in the water heater again, guarantees the normal use of water heater.When medium channel (12) is made, for simplicity, can open three through holes of vertical connection in twos in the wall of valve body (1) limit, the external end head of each through hole all uses plug (16) airtight firmly, has just formed medium channel (12) like this in valve body (1).
When rated pressure that discharge pressure of the present utility model (the water intake pressure of instant heating hydrophone) can bear greater than water heater liner, this pressure just acts on the piston major part (6), the elastic force that it overcomes spring (8) moves down valve rod (5), driving tapered piston microcephaly (7) moves down, just in time close the taper import (9) of import valve body (3), thereby closed the port that communicates with medium channel (12) of import (9) sidewall, make the water source enter water heater by medium channel (12), so just guaranteed that water heater liner is under the constant pressure all the time, can not be damaged.Only need open the water outlet of water heater this moment, just can reduce the pressure of water heater water inlet, make it to drop under the safety pressure that inner bag can bear, valve rod of the present utility model like this (5) moves up under the elastic force effect of spring (8), medium channel (12) is opened, the utility model is in opening state, and water heater is communicated with the water source, and water heater normally uses.
Claims (3)
1, a kind of constant pressure safety valve, it is made up of valve body and spool, it is characterized in that valve body (1) is cavity body, the one end is outlet (2), the other end is provided with import valve body (3), spool is by valve core (4), valve rod (5) and piston major part (6), tapered piston microcephaly (7) forms, valve core (4) is positioned at valve body (1), valve rod (5) passes valve core (4), the one end links to each other with circular plate type piston major part (6), the other end links to each other with tapered piston microcephaly (7), be set with spring (8) on the piston rod (5), and piston major part (6) is against the outlet (2) of valve body (1) and locates, piston microcephaly (7) is positioned at the taper import (9) of import valve body (3) and locates, this import (9) communicates with the import (11) of inlet union (10), and the sidewall of taper import (9) communicates by the medium channel (12) in the valve body (1) with the sidewall of valve body (1) outlet (2).
2, by the described constant pressure safety valve of claim 1, it is characterized in that leaving spacing between the two ends of valve core (4) and valve body (1) and import valve body (3) respective end, make valve rod (5) can drive piston major part (6) and tapered piston microcephaly (7) moves around, and valve rod (5) is tightly connected by seal ring (13) and valve core (4).
3, by the described constant pressure safety valve of claim 1, it is characterized in that an end of the corresponding valve rod of valve core (4) (5) has one section cavity (14), be positioned at this cavity (14) so that this section valve rod (5) is gone up the spring (8) of suit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96223889 CN2279491Y (en) | 1996-10-22 | 1996-10-22 | Constant pressure safe valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96223889 CN2279491Y (en) | 1996-10-22 | 1996-10-22 | Constant pressure safe valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2279491Y true CN2279491Y (en) | 1998-04-22 |
Family
ID=33902997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96223889 Expired - Fee Related CN2279491Y (en) | 1996-10-22 | 1996-10-22 | Constant pressure safe valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2279491Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100491781C (en) * | 2007-08-17 | 2009-05-27 | 方建生 | Liquid-controlled type multi-purpose valve |
| CN105771848A (en) * | 2014-12-25 | 2016-07-20 | 佛山市宝航机械装备行业知识产权服务有限公司 | Efficient and safe reaction vessel |
| CN107687525A (en) * | 2017-09-28 | 2018-02-13 | 枣庄九电子科技有限公司 | A kind of New-type safety valve |
| CN110935398A (en) * | 2019-11-29 | 2020-03-31 | 蒋红春 | Overpressure release type pressure vessel |
-
1996
- 1996-10-22 CN CN 96223889 patent/CN2279491Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100491781C (en) * | 2007-08-17 | 2009-05-27 | 方建生 | Liquid-controlled type multi-purpose valve |
| CN105771848A (en) * | 2014-12-25 | 2016-07-20 | 佛山市宝航机械装备行业知识产权服务有限公司 | Efficient and safe reaction vessel |
| CN107687525A (en) * | 2017-09-28 | 2018-02-13 | 枣庄九电子科技有限公司 | A kind of New-type safety valve |
| CN110935398A (en) * | 2019-11-29 | 2020-03-31 | 蒋红春 | Overpressure release type pressure vessel |
| CN110935398B (en) * | 2019-11-29 | 2020-11-24 | 江苏盛斗士网络技术有限公司 | Overpressure release type pressure vessel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |