CN205371802U - Eliminate device in rotary drum vacuum valve case drunkenness clearance - Google Patents
Eliminate device in rotary drum vacuum valve case drunkenness clearance Download PDFInfo
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- CN205371802U CN205371802U CN201521112446.XU CN201521112446U CN205371802U CN 205371802 U CN205371802 U CN 205371802U CN 201521112446 U CN201521112446 U CN 201521112446U CN 205371802 U CN205371802 U CN 205371802U
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Abstract
The utility model relates to a rotary drum vacuum valve technical field specifically discloses an eliminate device in rotary drum vacuum valve case drunkenness clearance and method. The device is including installing gasket A surperficial about the cam and installing the gasket B between disk seat and case subassembly, and wherein, the cam is installed between case subassembly upper end and valve body to between cam upper surface and valve body contact surface, and the installation stainless steel gasket A that the diameter is the same, thickness is different between the contact surface of cam lower surface and case subassembly upper end, make and leave appropriate clearance between cam and valve body and the case subassembly, the installation stainless steel gasket B that the diameter is the same, thickness is different between the surface of disk seat and case subassembly contact makes and leaves appropriate clearance between disk seat and the case subassembly. Utilize the device and method, through experimental verification of each 500 valve opening and closing actions of valve formal dress, flip -chip, side dress, thoroughly avoided the case subassembly to leak the problem because of the valve passage that the axial float leads to.
Description
Technical field
This utility model belongs to rotary drum vacuum valve gate technique field, is specifically related to a kind of device and method eliminating rotary drum vacuum valve spool play gap.
Background technology
The rotary drum vacuum valve used in uranium enrichment system needs with spool detent mechanism, and its effect is to regulate the position of core assembly and make its axial displacement control in minimum scope to ensure the sealing of valve passage.In current system, the spool detent mechanism of smaller diameter valve is to adopt screw support to add the structural shape of horizontal jackscrew at cam and valve seat location.Owing to valve aperture is little, core assembly lighter weight, between cam and spool position, cam itself position and valve seat and spool between location mode the installation position of valve is less demanding, it is easy to meet the channel seal requirement that valve is installed in each orientation.
Increase along with uranium enrichment production capacity, pipe diameter increases, rotary drum vacuum valve bore increases therewith, spool weight is multiplied, in addition the impact of valve vibration, only leans on the weight that screw and jackscrew bear spool can cause that screw loosening causes spool dislocation to produce valve passage leakage when valve is reverse mounted.
Summary of the invention
The purpose of this utility model is in that to provide a kind of device and method eliminating rotary drum vacuum valve spool play gap, the installation location of valve cam, spool, valve seat can be ensured, and there is not unacceptable axial float in core assembly, it is ensured that effective sealing of passage.
The technical solution of the utility model is as follows: a kind of device eliminating rotary drum vacuum valve spool play gap, this device includes the pad A being arranged on cam upper and lower surface and the pad B being arranged between valve seat and core assembly, wherein, cam is arranged between core assembly upper end and valve body, and between upper cam surface and valve body contact surface, and the stainless steel gasket A that diameter is identical, thickness is different is installed between cam lower surface from core assembly upper-end contact surface, make to leave between cam and valve body and core assembly suitable gap；The stainless steel gasket B that diameter is identical, thickness is different is installed between the surface that valve seat contacts with core assembly, makes between valve seat and core assembly, to leave suitable gap.
Described pad A and pad B is stainless steel gasket, and it is processed by flow harden.
Described cam upper and lower surface installs the thickness of pad A and the thickness of pad B between valve seat and core assembly, it is ensured that the axial location of core assembly and the centering of valve port.
A kind of method eliminating rotary drum vacuum valve spool play gap, the method specifically includes following steps:
Step 1, between cam and valve body, and diameter is identical, thickness is different stainless steel gasket is installed between cam from core assembly, cam is positioned；
Step 2, diameter is identical, thickness is different stainless steel gasket is installed between the surface that core assembly contacts from valve seat, it is achieved core assembly and valve port centering.
Remarkable result of the present utility model is in that: a kind of device and method eliminating rotary drum vacuum valve spool play gap described in the utility model, core assembly utilizes on the valve body that pad transfers force to fix, make the probability of its supreme lower play, reach the sealing of valve passage；Utilize this device and method, by each 500 valve opening and closing action tests checking that valve formal dress, upside-down mounting, side fill, thoroughly avoid the valve passage leakage problem that core assembly causes because of axial float.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of device eliminating rotary drum vacuum valve spool play gap described in the utility model；
Fig. 2 is the partial enlarged drawing of A in Fig. 1:
Fig. 3 is the partial enlarged drawing of B in Fig. 1；
In figure: 1, cam；2, valve body；3, core assembly；4, valve seat；5, pad A；6, pad B.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, this utility model is described in further detail.
As shown in Figures 1 to 3, a kind of device eliminating rotary drum vacuum valve spool play gap, including the pad A5 being arranged on cam 1 upper and lower surface and the pad B6 being arranged between valve seat 4 and core assembly 3, wherein, cam 1 is arranged between core assembly 3 upper end and valve body 2, and contact between surface at cam 1 upper surface with valve body 2, and the stainless steel gasket A5 that diameter is identical, thickness is different is installed between cam 1 lower surface from core assembly upper-end contact surface, make to leave suitable gap between cam 1 and valve body 4 and core assembly 3, it is achieved rotate requirement；The stainless steel gasket B6 that diameter is identical, thickness is different is installed between the surface that valve seat 4 contacts with core assembly 3, makes to leave between valve seat 4 and core assembly 3 suitable gap, to realize rotating requirement；Adjust cam 1 upper and lower surface and the thickness of pad A5 between valve seat 4 and core assembly 3 and pad B6, it is achieved the axial location of core assembly and the centering of valve port；Cam 1 spool position simultaneously need to carry out self poisoning.Pad A5 and pad B6 is processed by flow harden, and to ensure its wearability, meanwhile, roughness needs to reach certain requirement, to reduce the frictional resistance in transmission.
A kind of method eliminating rotary drum vacuum valve spool play gap, the method specifically includes following steps:
Step 1, between cam and valve body, and diameter is identical, thickness is different stainless steel gasket is installed between cam from core assembly, cam is positioned；
Step 2, diameter is identical, thickness is different stainless steel gasket is installed between the surface that core assembly contacts from valve seat, it is achieved core assembly and valve port centering.
Claims (4)
1. the device eliminating rotary drum vacuum valve spool play gap, it is characterized in that: pad A (5) that this device includes being arranged on cam (1) upper and lower surface and the pad B (6) being arranged between valve seat (4) and core assembly (3), wherein, cam (1) is arranged between core assembly (3) upper end and valve body (2), and contact between surface at cam (1) upper surface with valve body (2), and it is identical to install diameter between cam (1) lower surface with core assembly upper-end contact surface, the stainless steel gasket A (5) that thickness is different, make to leave suitable gap between cam (1) and valve body (4) and core assembly (3)；The stainless steel gasket B (6) that diameter is identical, thickness is different is installed between the surface that valve seat (4) contacts with core assembly (3), makes to leave suitable gap between valve seat (4) and core assembly (3).
2. a kind of device eliminating rotary drum vacuum valve spool play gap according to claim 1, it is characterised in that: described pad A (5) and pad B (6) is stainless steel gasket, and it is processed by flow harden.
3. a kind of device eliminating rotary drum vacuum valve spool play gap according to claim 1, it is characterized in that: described cam (1) upper and lower surface installs the thickness of pad A (5), and the thickness of pad B (6) between valve seat (4) and core assembly (3), it is ensured that the axial location of core assembly (3) and the centering of valve port.
4. the method eliminating rotary drum vacuum valve spool play gap, it is characterised in that: the method specifically includes following steps:
Step 1, between cam and valve body, and diameter is identical, thickness is different stainless steel gasket is installed between cam from core assembly, cam is positioned；
Step 2, diameter is identical, thickness is different stainless steel gasket is installed between the surface that core assembly contacts from valve seat, it is achieved core assembly and valve port centering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521112446.XU CN205371802U (en) | 2015-12-29 | 2015-12-29 | Eliminate device in rotary drum vacuum valve case drunkenness clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521112446.XU CN205371802U (en) | 2015-12-29 | 2015-12-29 | Eliminate device in rotary drum vacuum valve case drunkenness clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205371802U true CN205371802U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521112446.XU Active CN205371802U (en) | 2015-12-29 | 2015-12-29 | Eliminate device in rotary drum vacuum valve case drunkenness clearance |
Country Status (1)
| Country | Link |
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| CN (1) | CN205371802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931237A (en) * | 2015-12-29 | 2017-07-07 | 中核新能核工业工程有限责任公司 | Eliminate the device and method in rotary drum vacuum valve valve element play gap |
-
2015
- 2015-12-29 CN CN201521112446.XU patent/CN205371802U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931237A (en) * | 2015-12-29 | 2017-07-07 | 中核新能核工业工程有限责任公司 | Eliminate the device and method in rotary drum vacuum valve valve element play gap |
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