CN102927335A - Step motor driven pressure-resistant vacuum regulating valve - Google Patents
Step motor driven pressure-resistant vacuum regulating valve Download PDFInfo
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- CN102927335A CN102927335A CN2011102281951A CN201110228195A CN102927335A CN 102927335 A CN102927335 A CN 102927335A CN 2011102281951 A CN2011102281951 A CN 2011102281951A CN 201110228195 A CN201110228195 A CN 201110228195A CN 102927335 A CN102927335 A CN 102927335A
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- valve
- cover
- valve body
- step motor
- resistant vacuum
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Abstract
The invention belongs to a pressure-resistant vacuum regulating valve used for equipment in a nuclear chemical engineering process system, and in particular relates to a step motor driven pressure-resistant vacuum regulating valve, which comprises a valve body, wherein the top of the valve body is provided with a lower cover; the upper part of the lower cover is connected with an upper cover; the top of the upper cover is provided with a step motor; the lower part in the valve body is provided with a valve seat and a corrugated pipe component; the upper part of the corrugated pipe component is connected with a valve rod; the lower part of the corrugated pipe component is connected with a valve plug; a pressure bearing structure is formed between the valve body and the corrugated pipe component; the lower part of the valve plug is sleeved with a reset spring; the valve rod is in threaded connected with a lower connecting ring of the corrugated pipe component to push the valve plug to move; the upper part of the valve rod is connected with a stroke bush which is positioned in a cavity between the lower cover and the upper cover; the upper and lower parts of the stroke bush are respectively fixed to the upper cover and the lower cover through a bearing; and the upper part of the stroke bush is connected with the step motor. The pressure-resistant vacuum regulating valve has the advantages that the valve acts stably, is convenient to maintain and meets various nuclear chemical engineering process requirements.
Description
Technical field
The invention belongs to pressure resistant vacuum adjusting valve and be used for a kind of equipment of nuclear chemical industry process system, be specifically related to a kind of pressure resistant vacuum adjusting valve driven by step motor.
Background technique
Pressure resistant vacuum adjusting valve can be realized by controller control step motor the opening and closing of valve.Form the cover rotation by motor driving during use, make valve rod produce elevating movement by the screw pair conversion, the band movable valve plug is finished regulatory function, realizes flow control.
Existing denuclearization worker process system dedicated regulation valve, the HEATING BOX of can't integral body in the small decorative system packing into.Therefore need a kind of new modulating valve of development to satisfy usage requirement.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can satisfy the requirement of nuclear chemical industry process system each side, and can the pressure resistant vacuum adjusting valve driven by step motor of integral installation in HEATING BOX.
The present invention realizes like this, a kind of pressure resistant vacuum adjusting valve driven by step motor, it comprises valve body, the top of valve body is provided with lower cover, the top of lower cover is connected with loam cake, the top of loam cake is provided with stepper motor, bottom in the valve body is provided with valve seat and bellows component, the top of bellows component is connected with valve rod, the bottom of bellows component is connected with spool, form a bearing structure between valve body and the bellows component, the bottom cover of spool has Returnning spring, the lower T-Ring of valve rod and bellows component to be threaded connection the motion of pusher movable valve plug, the top of valve rod is connected with the stroke cover, stroke overlaps in the cavity between lower cover and loam cake, stroke cover upper, be fixed on loam cake and lower covering by bearing respectively down, the top of stroke cover also has the stepper motor connection.
In the cavity of the valve body between described valve body and the bellows component seal ring is installed, check ring is housed on the seal ring.
Have an annular groove on the described valve seat, O type circle is installed in groove.
Described valve body has been bolted to connection lower cover.
Advantage of the present invention is that valve event is steady, easy to maintenance, satisfies every nuclear chemical industry technological requirement.
Description of drawings
Fig. 1 is pressure resistant vacuum adjusting valve driven by step motor structural drawing provided by the present invention;
Fig. 2 is sealing and the throttle structure of pressure resistant vacuum adjusting valve driven by step motor provided by the present invention.
Among the figure, 1 valve body, 2 valve seats, 3 seal rings, 4 spools, 5 bellows components, 6 valve rods, 7 bolts, 8 lower covers, 9 stroke covers, 10 loam cakes, 11 stepper motors, 12O type circle, 13 seal rings, 14 check rings, 15 Returnning springs, 16 times T-Rings, 18 sealing surfaces, 19 throttleng surfaces.
Embodiment
Describe the present invention below in conjunction with drawings and Examples:
As shown in Figure 1, it comprises the valve body 1 of threeway shape a kind of pressure resistant vacuum adjusting valve driven by step motor, the top of valve body 1 is fixedly connected with lower cover 8 by bolt 7, the top of lower cover 8 is fixedly connected with loam cake 10, the top of loam cake 10 is equipped with stepper motor 11, the inside of valve body 1 is that hollow-core construction is equipped with valve seat 2 in its underpart, its inside also is set with bellows component 5, the top of bellows component 5 is connected with valve rod 6, the bottom of bellows component 5 is connected with spool 4, forms a bearing structure between valve body 1 and the bellows component 5.As shown in Figure 2, in the cavity of the valve body 1 between valve body 1 and the bellows component 5 seal ring 3 is installed, check ring 14 is housed on the seal ring 3, have an annular groove on the valve seat 2, O type circle 12 is installed in groove, the bottom cover of the spool 4 of bolt shape has Returnning spring 15, the lower T-Ring 16 of valve rod 6 and bellows component 5 is threaded connection 4 motions of pusher movable valve plug, and reset by Returnning spring 15, spool 4 is functional units of modulating valve, has directly determined the service behaviour of valve.The top of valve rod 6 is connected with stroke cover 9, in the cavity of stroke cover 9 between lower cover 8 and loam cake 10, the upper and lower of stroke cover 9 is fixed on loam cake 10 and the lower cover 8 by bearing respectively, the top of stroke cover 9 also has stepper motor 11 to connect, the counter-force that moves to the limit position generation when the valve internals can overcome initial tension of spring, can touch position limit switch, to the Direct box feedback signal.
Discrete and the Quick overhaul of function: the sealing function of common modulating valve and throttling function all are made on the spool, and spool carries out mechanical connection again with valve rod again.When any point fault occurring, or maintenance, or integral replacing.And for the uranium enrichment system, in order to reduce the adverse effect to operator and environment, generally can adopt direct replacing to process to part of damage.In order to reduce maintenance cost, as shown in Figure 2, the present invention has adopted sealing, throttling separate type, throttling function is realized by the throttleng surface of spool and valve seat, it is just passable as long as change spool when the throttleng surface Flow characteristics is had Secretary, spool and other part mechanical connection useless can be realized Quick overhaul easily simultaneously; Sealing function is realized by lower T-Ring and seal ring, when sealing goes wrong, as long as take off check ring, changes seal ring and gets final product, and the dismounting that is not threaded is also very convenient.
Claims (4)
1. pressure resistant vacuum adjusting valve driven by step motor, it is characterized in that: it comprises valve body (1), the top of valve body (1) is provided with lower cover (8), the top of lower cover (8) is connected with loam cake (10), the top of loam cake (10) is provided with stepper motor (11), bottom in the valve body (1) is provided with valve seat (2) and bellows component (5), the top of bellows component (5) is connected with valve rod (6), the bottom of bellows component (5) is connected with spool (4), form a bearing structure between valve body (1) and the bellows component (5), the bottom cover of spool (4) has Returnning spring (15), the lower T-Ring (16) of valve rod (6) and bellows component (5) is threaded connection pusher movable valve plug (4) motion, the top of valve rod (6) is connected with stroke cover (9), stroke cover (9) is positioned at the cavity between lower cover (8) and the loam cake (10), stroke cover (9) upper, be fixed on loam cake (10) and the lower cover (8) by bearing respectively down, the top of stroke cover (9) also has stepper motor (11) to connect.
2. a kind of pressure resistant vacuum adjusting valve driven by step motor as claimed in claim 1, it is characterized in that: in the cavity of the valve body (1) between described valve body (1) and the bellows component (5) seal ring (3) is installed, check ring (14) is housed on the seal ring (3).
3. a kind of pressure resistant vacuum adjusting valve driven by step motor as claimed in claim 1, it is characterized in that: described valve seat has an annular groove on (2), and O type circle (12) is installed in groove.
4. a kind of pressure resistant vacuum adjusting valve driven by step motor as claimed in claim 1, it is characterized in that: described valve body (1) is fixedly connected with lower cover (8) by bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110228195.1A CN102927335B (en) | 2011-08-10 | 2011-08-10 | Step motor driven pressure-resistant vacuum regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110228195.1A CN102927335B (en) | 2011-08-10 | 2011-08-10 | Step motor driven pressure-resistant vacuum regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102927335A true CN102927335A (en) | 2013-02-13 |
| CN102927335B CN102927335B (en) | 2014-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110228195.1A Active CN102927335B (en) | 2011-08-10 | 2011-08-10 | Step motor driven pressure-resistant vacuum regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102927335B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763439A (en) * | 2016-11-15 | 2017-05-31 | 常州大学 | A kind of damper means for damping continuously adjustabe |
| CN114616416A (en) * | 2019-10-28 | 2022-06-10 | 伊格尔工业股份有限公司 | Expansion valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08285097A (en) * | 1995-04-11 | 1996-11-01 | Toto Ltd | Pressure reducing and flow regulating valve |
| CN201344287Y (en) * | 2008-10-20 | 2009-11-11 | 温晋轩 | Vacuum valve of continuous evacuation device |
| CN101598238A (en) * | 2008-06-03 | 2009-12-09 | 上海海星阀门总厂 | A kind of motor-driven high-temperature resisting bellow cut-off valve |
| CN201363428Y (en) * | 2009-01-14 | 2009-12-16 | 湖北汉光科技股份有限公司 | Valve head seal structure for ultrahigh vacuum valve of vacuum equipment |
| CN202176722U (en) * | 2011-08-10 | 2012-03-28 | 中核苏阀科技实业股份有限公司 | Pressure resistant vacuum adjusting valve driven by step motor |
-
2011
- 2011-08-10 CN CN201110228195.1A patent/CN102927335B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08285097A (en) * | 1995-04-11 | 1996-11-01 | Toto Ltd | Pressure reducing and flow regulating valve |
| CN101598238A (en) * | 2008-06-03 | 2009-12-09 | 上海海星阀门总厂 | A kind of motor-driven high-temperature resisting bellow cut-off valve |
| CN201344287Y (en) * | 2008-10-20 | 2009-11-11 | 温晋轩 | Vacuum valve of continuous evacuation device |
| CN201363428Y (en) * | 2009-01-14 | 2009-12-16 | 湖北汉光科技股份有限公司 | Valve head seal structure for ultrahigh vacuum valve of vacuum equipment |
| CN202176722U (en) * | 2011-08-10 | 2012-03-28 | 中核苏阀科技实业股份有限公司 | Pressure resistant vacuum adjusting valve driven by step motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763439A (en) * | 2016-11-15 | 2017-05-31 | 常州大学 | A kind of damper means for damping continuously adjustabe |
| CN114616416A (en) * | 2019-10-28 | 2022-06-10 | 伊格尔工业股份有限公司 | Expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102927335B (en) | 2014-08-27 |
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