CN201661686U - Automatic vacuum breaker - Google Patents
Automatic vacuum breaker Download PDFInfo
- Publication number
- CN201661686U CN201661686U CN2010200495980U CN201020049598U CN201661686U CN 201661686 U CN201661686 U CN 201661686U CN 2010200495980 U CN2010200495980 U CN 2010200495980U CN 201020049598 U CN201020049598 U CN 201020049598U CN 201661686 U CN201661686 U CN 201661686U
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- China
- Prior art keywords
- valve
- pressure
- vacuum
- stuffing box
- seat
- 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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Abstract
The utility model discloses an automatic pressure-regulating valve, which aims to provide an automatic vacuum breaker suitable for the vacuum breaking working condition of a vacuum container on a vacuum device. The valve comprises a valve body, a valve seat, a valve core part, a guide sleeve part, a balanced bellows part, a valve cover, a diaphragm type actuating mechanism, a stuffing box, a pressure setting and regulating spring, a shield, a regulating seat and the like. A flow-to-open type design is adopted, and the valve core part, the valve seat and the balanced bellows part together form a pressure self-balancing structure. The top is regulated, flexible sealing is adopted between the valve core and the valve seat, and a membrane chamber of the actuating mechanism is additionally provided with the stuffing box. The automatic vacuum breaker fills the gap of the automatic pressure-regulating valve in China.
Description
Technical field
The utility model relates to a kind of self-contained pressure regulator, in particular, is a kind of self-powering type vacuum breaker.
Background technique
In recent years, the develop rapidly of domestic valve industry, the product structure type of each valve producer emerges in an endless stream, as self-contained pressure regulator, because need not external energy (power supply and source of the gas), utilize and transferred the medium self-energy as power source, introduce the actuating mechanism controls valve element position, change circulation area, change the pressure reduction at two ends, thereby make downstream pressure be stabilized in setting value, therefore used widely.But at present domestic existing self-contained pressure regulator manufacturer does not also produce the valve kind that can adapt to vacuum tank vacuum breaker operating mode on the vacuum system.
The model utility content
The purpose of this utility model is in order to overcome deficiency of the prior art, a kind of self-powering type vacuum breaker is provided, this valve has characteristics such as be active in one's movements, good airproof performance, pressure surge are little, can be applicable to the automatic control occasion of vacuum tank vacuum breaker on the vacuum system, fill up this product vacancy of domestic self-contained pressure regulator.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of self-powering type vacuum breaker, comprise valve body, valve seat, valve hole part, guide sleeve parts, balance bellows components, valve gap, diaphragm actuator, stuffing box, pressure setting Regulation spring, guard shield, adjustment seat, described valve hole part, valve seat and balance bellows components constitute the structure of pressure self balancing together.
As further improvement of the utility model, described valve hole part adopts the soft seal of screw formula.
As further improvement of the utility model, the upper film chamber of described diaphragm actuator forms vacuum, and increase has stuffing box to seal.
As further improvement of the utility model, filler upside-down mounting in the described stuffing box, and and O RunddichtringO formation double seal.
As further improvement of the utility model, described adjustment seat is installed in and carries out pressure in the described guard shield of valve top part and set.
The technical solution of the utility model advantage is:
1. valve adopts the design of stream open form, and voltage regulation performance is good.
2. adopt soft seal between spool and the valve seat, good airproof performance.
3. valve adopts the balance bellows, has eliminated the unbalanced force that pressure medium produces, and makes the adjusting function of putting in order valve not be subjected to the influence of pressure medium fluctuation substantially.
4. the screw formula soft sealing structure of valve hole part has guaranteed the enough big negotiability of valve.
5. increased the stuffing box design on the valve actuator film chamber, filler is counter to be adorned, and has solved the indoor degree of vacuum sealing problem of film.
6. valve pressure is set the top adjusted design, makes the pressure setting of valve regulate simple and fast more.
Description of drawings
Fig. 1 is the utility model general assembly structural drawing;
Fig. 2 is the utility model valve hole part sectional drawing;
Fig. 3 is the utility model stuffing box sectional drawing;
Fig. 4 is the utility model adjustment disk structural drawing;
Among the figure: 1 valve body, 2 valve seats, 3 valve hole parts, 4 guide sleeve parts, 5 balance bellows components, 6 valve gaps, 7 diaphragm actuators, 8 stuffing boxes, 9 pressure are set Regulation spring, 10 guard shields, 11 are adjusted O RunddichtringO, 8.3 outer O RunddichtringOs, 8.4 fillers, 8.5 counterbalance springs, 8.6 sealed pressing sleeves in seat, 3.1 valve heads, 3.2 lower valve rods, the 8.1 filler friction tops, 8.2.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
As shown in Figure 1, valve of the present utility model adopts the design of stream open form, avoids " vortex " influence to spool, and voltage regulation performance is good.Its valve hole part 3, valve seat 2 and balance bellows components 5 constitute the structure of pressure self balancing together, because the employing of balance bellows components 5, eliminated the unbalanced force of the preceding pressure medium of valve to valve hole part 3, make the performance of putting in order valve not be subjected to the influence of the preceding pressure medium fluctuation of valve substantially, improved precision.During valve working, the interface of mark degree of vacuum is connected to vacuum tank, the atmospheric interface of mark is communicated with atmosphere, valve body 1 outlet also is connected to vacuum tank, and upper and lower film chamber will produce certain pressure reduction, acts on the diaphragm.The elastic force of setting Regulation spring 9 by pressure comes the active force of balance pressure reduction generation, thereby the degree of vacuum of vacuum tank is set in certain force value.Degree of vacuum in vacuum tank rises, i.e. the pressure reduction of downstream pressure decline and atmosphere increases, the power that acts on the diaphragm also increases, impel pressure to set Regulation spring 9 compressions, promote valve hole part 3 and move upward valve opening, atmosphere enters in the vacuum tank, remedy the degree of vacuum of increase, after the degree of vacuum in the jar returned to setting value, pressure reduction reduced, pressure is set Regulation spring 9 promotion valve hole parts 3 and is moved downward valve closing.
As shown in Figure 2, valve head 3.1 adopts soft seal, can contact more fully between sealing surface, improves sealability.Valve head 3.1 is fixed on the upper valve rod 3.5 by lower valve rod 3.4, constitutes screw formula valve hole part 3 with valve head pad 3.2, bullet pad 3.3, reduces the influence to runner as far as possible, thereby guarantees negotiability.
As shown in Figure 3, filler 8.4 is installed in the stuffing box 8, filler is counter to be adorned, and increases the sealing of whole valve, guarantees degree of vacuum.Counterbalance spring 8.5 is installed below filler 8.4, and the compensation valve is becoming flexible of filler 8.4 in use, fully guarantees the sealing in the using process.When reaching the limit of counterbalance spring 8.5, can adjust the sealing that filler friction top 8.1 recovers filler 8.4.In addition, on sealed pressing sleeve 8.6 in the design O RunddichtringO 8.2 with outside O RunddichtringO 8.3, double seal further improves valve seal.
As shown in Figure 4, adjust seat 11 designs in valve tip, the setting downstream pressure value of energy simple and fast.
At last, it is also noted that what more than enumerate only is a specific embodiment of the present utility model.Obviously, the utility model can also have many distortion, and all distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (1)
1. self-powering type vacuum breaker, comprise valve body, valve seat, valve hole part, guide sleeve parts, balance bellows components, valve gap, diaphragm actuator, stuffing box, pressure setting Regulation spring, guard shield, adjustment seat, it is characterized in that described valve hole part, valve seat and balance bellows components constitute the structure of pressure self balancing together; Described valve hole part adopts the soft seal of screw formula; The upper film chamber of described diaphragm actuator forms vacuum, and increase has stuffing box to seal; Filler upside-down mounting in the described stuffing box, and and the O RunddichtringO form double seal; The described adjustment carried out the pressure setting in the described guard shield that is installed in valve top part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200495980U CN201661686U (en) | 2010-01-20 | 2010-01-20 | Automatic vacuum breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200495980U CN201661686U (en) | 2010-01-20 | 2010-01-20 | Automatic vacuum breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201661686U true CN201661686U (en) | 2010-12-01 |
Family
ID=43232101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200495980U Expired - Fee Related CN201661686U (en) | 2010-01-20 | 2010-01-20 | Automatic vacuum breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201661686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185827A (en) * | 2019-06-26 | 2019-08-30 | 安徽省屯溪高压阀门有限公司 | A kind of high temperature and pressure bellows Self-operated pressure reducing valve |
-
2010
- 2010-01-20 CN CN2010200495980U patent/CN201661686U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185827A (en) * | 2019-06-26 | 2019-08-30 | 安徽省屯溪高压阀门有限公司 | A kind of high temperature and pressure bellows Self-operated pressure reducing valve |
| CN110185827B (en) * | 2019-06-26 | 2024-02-20 | 安徽省屯溪高压阀门股份有限公司 | Bellows self-operated relief pressure valve for high temperature and high pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20180120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |