CN202176777U - Withstand pressure vacuum regulating valve - Google Patents
Withstand pressure vacuum regulating valve Download PDFInfo
- Publication number
- CN202176777U CN202176777U CN2011202889708U CN201120288970U CN202176777U CN 202176777 U CN202176777 U CN 202176777U CN 2011202889708 U CN2011202889708 U CN 2011202889708U CN 201120288970 U CN201120288970 U CN 201120288970U CN 202176777 U CN202176777 U CN 202176777U
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- CN
- China
- Prior art keywords
- valve
- flap
- valve body
- support
- cover
- 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 - Lifetime
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Abstract
The utility model belongs to withstand pressure vacuum regulating valves used for a nuclear chemical industrial process system, and in particular relates to a withstand pressure vacuum regulating valve, which comprises a valve body. A valve clack is arranged in a cavity of the valve body, a valve core is connected to the lower end of the valve clack, and a sealing ring is arranged between the valve clack and the valve core. A pressing cover is connected with the upper end of the valve clack, the upper portion of the pressing cover is a valve rod assembly, and the top of the valve body connects the valve cover and the valve body through a middle flange and a connecting bolt penetrating through the middle flange. The inner portion of the valve cover is in a cavity structure, the valve cover is sleeved with a connecting sleeve, and the upper end of the connecting sleeve is connected with a connecting rod. The upper portion of the valve cover is connected with a support, an actuating mechanism is arranged at the upper portion of the support, the connecting rod is connected with a butt clamping block fixed in the support, and the butt clamping block is connected with a screw rod which is connected with the actuating mechanism. The withstand pressure vacuum regulating valve has the advantages of being stable in operation, free of maintenance and capable of operating for a long time and meeting process requirements of each nuclear chemical industrial process.
Description
Technical field
The utility model belongs to a kind of withstand voltage vacuum breaker that is used for the nuclear chemical industry process system, is specifically related to a kind of withstand voltage vacuum breaker.
Background technique
Withstand voltage vacuum breaker can be realized the opening and closing of valve through electric actuator.Electric actuator actuate valve stem nut rotation during use converts the elevating movement of valve rod into through screw pair, drives spool and accomplishes regulatory function, realizes flow control.
Existing denuclearization worker process system dedicated regulation valve in use is prone to produce vibration, causes the life-span shorter; The bellows damage that is prone to meet accident causes failsafe valve.
Summary of the invention
The purpose of the utility model provide a kind of can satisfy the nuclear chemical industry process system to degree of regulation, the working life of modulating valve, satisfy the withstand voltage vacuum breaker that each side such as nuclear chemical industry technology requires.
The utility model is achieved in that withstand voltage vacuum breaker, and it comprises valve body, is provided with flap in the cavity of valve body; The lower end of flap is connected with spool, is provided with seal ring between flap and the spool, and gland is connected with the upper end of flap, and the top of gland is valve rod assembly; The top of valve body links together valve gap and valve body through middle flange and the connecting bolt that passes middle flange, and the inside of valve gap is cavity structure, and valve gap is with connecting sleeve; The upper end of connecting sleeve is connected with connecting rod, and the top of valve gap is connected with support, and the top of support is provided with actuator; Connecting rod be fixed on fixture block is connected in the support, fixture block is connected with screw rod, screw rod is connected with actuator.
The below of described valve rod assembly is connected with flap through the sphere divided ring.
Be provided with damping spring between described flap 3 and the valve rod assembly.
Have the groove of annular on the described connecting sleeve, O type circle is installed in the groove.
The utility model has the advantages that stable action, non-maintaining long-play can satisfy each item nuclear chemical industry technological requirement.
Description of drawings
Fig. 1 is the withstand voltage vacuum breaker structural drawing that the utility model provided;
Fig. 2 is the withstand voltage vacuum breaker self adaption two ends guide structure schematic representation that the utility model provided;
Fig. 3 is the withstand voltage vacuum breaker mechanical position limitation embedding structure schematic representation that the utility model provided.
Among the figure, 1 valve body, 2 spools, 3 flaps, 4 seal rings, 5 glands; 6 valve rod assemblies, 7 connecting bolts, 8O type circle, flange in 9,10 connecting sleeves, 11 connecting rods; 12 valve gaps, 13 pairs of fixture blocks, 14 screw rods, 15 supports, 16 actuators; 17 upper limits, 18 lower limit, 21 times T-Rings, 22 damping springs, 25 sphere divided rings.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:
As shown in Figure 1, it comprises valve body 1 withstand voltage vacuum breaker, and flap 3 is installed in the cavity of valve body 1; The lower end of flap 3 is fixedly connected with spool 2 through screw thread, between flap 3 and the spool 2 seal ring 4 is installed, and gland 5 is connected with the upper end of flap 3; The top of gland 5 is valve rod assembly 6, and gland 5 is provided with spring with valve rod assembly 6, and the top of valve body 1 links together valve gap 12 and valve body 1 through middle flange 9 and the connecting bolt 7 that passes middle flange 9; The inside of valve gap 12 also is cavity structure, and valve gap 12 is with connecting sleeve 10, has the groove of annular on the connecting sleeve 10; O type circle 8 is installed in the groove, and the upper end of connecting sleeve 10 is connected with connecting rod 11, and the top of valve gap 12 is connected with support 15; The top of support 15 is equipped with actuator 16; Connecting rod 11 be fixed on support 15 in fixture block 13 is connected, fixture block 13 is connected with screw rod 14, screw rod 14 is connected with actuator 16.
As shown in Figure 2, the below of valve rod assembly 6 is connected with flap 3 through sphere divided ring 25, and flap 3 and the spool 4 pusher movable valve plug 4 that is threaded moves.Spool 4 is functional units of modulating valve, has directly determined the service behaviour of valve.Between flap 3 and valve rod assembly 6, be provided with damping spring 12 in order to reduce spool 4 vibrations.In order to prevent that bellows bursts from causing medium to leak outside, on valve gap, be provided with auxiliary seal ring and make regular check on the hole.
As shown in Figure 2, self adaption two ends guiding: general modulating valve all is an end guiding.In order to improve the stability of valve internals operation, in this valve, used the structure of two ends guiding, the functor flap 3 of valve, valve rod assembly 6 upper ends are according to cylindrical and valve body guiding by following T-Ring 11, and the other end is by spool bottom cylindrical and valve body guiding.In order to prevent that guide surface is owing to the error in the course of working in the guiding process; Such as decentraction, micro-deformation etc.; Cause too early wearing and tearing or jam, two open loop structures that being connected of valve rod and flap adopt dribbling face guide surface up and down can have some free activities, do micro-compensation.Produce under the medium effect for fear of such flexibly connecting and to tremble, be provided with damping spring 12 between T-Ring 11 and the flap 3 down.
As shown in Figure 3, mechanical position limitation embedding structure: in order to prevent bellows unexpected damage in test and using process.The valve that has bellows is provided with mechanical position limitation, prevents that bellows from crossing to draw or overvoltage.General mechanical position limitation is arranged on the external adjustable structure on the support.Limit function of the present invention is arranged in the valve gap, when valve moves downward the connecting sleeve bottom limit position can withstand bellows component on T-Ring, reach the purpose of lower limit; Valve moves upward when covering stroke, and valve gap can be withstood in the plane on the connecting rod boss, reaches the purpose of upper limit.Spacing up and down existence has avoided external spacing artificial adjustment error to influence the possibility of valve proper functioning.
Claims (4)
1. withstand voltage vacuum breaker is characterized in that: it comprises valve body (1), is provided with flap (3) in the cavity of valve body (1); The lower end of flap (3) is connected with spool (2), is provided with seal ring (4) between flap (3) and the spool (2), and gland (5) is connected with the upper end of flap (3); The top of gland (5) is valve rod assembly (6); The top of valve body (1) links together valve gap (12) and valve body (1) through middle flange (9) and the connecting bolt (7) that passes middle flange (9), and the inside of valve gap (12) is cavity structure, and valve gap (12) is with connecting sleeve (10); The upper end of connecting sleeve (10) is connected with connecting rod (11); The top of valve gap (12) is connected with support (15), and the top of support (15) is provided with actuator (16), connecting rod (11) be fixed on fixture block (13) is connected in the support (15); Fixture block (13) is connected with screw rod (14), and screw rod (14) is connected with actuator (16).
2. withstand voltage vacuum breaker as claimed in claim 1 is characterized in that: the below of described valve rod assembly (6) is connected with flap (3) through sphere divided ring (25).
3. withstand voltage vacuum breaker as claimed in claim 1 is characterized in that: be provided with damping spring (12) between described flap (3) and the valve rod assembly (6).
4. withstand voltage vacuum breaker as claimed in claim 1 is characterized in that: have the groove of annular on the described connecting sleeve (10), O type circle (8) is installed in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202889708U CN202176777U (en) | 2011-08-10 | 2011-08-10 | Withstand pressure vacuum regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202889708U CN202176777U (en) | 2011-08-10 | 2011-08-10 | Withstand pressure vacuum regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176777U true CN202176777U (en) | 2012-03-28 |
Family
ID=45866655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202889708U Expired - Lifetime CN202176777U (en) | 2011-08-10 | 2011-08-10 | Withstand pressure vacuum regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202176777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927334A (en) * | 2011-08-10 | 2013-02-13 | 中核苏阀科技实业股份有限公司 | Pressure resistant vacuum regulating valve |
-
2011
- 2011-08-10 CN CN2011202889708U patent/CN202176777U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927334A (en) * | 2011-08-10 | 2013-02-13 | 中核苏阀科技实业股份有限公司 | Pressure resistant vacuum regulating valve |
| CN102927334B (en) * | 2011-08-10 | 2014-08-27 | 中核苏阀科技实业股份有限公司 | Pressure resistant vacuum regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120328 Effective date of abandoning: 20140827 |
|
| RGAV | Abandon patent right to avoid regrant |