CN204511808U - Vacuum pipe evacuation - Google Patents
Vacuum pipe evacuation Download PDFInfo
- Publication number
- CN204511808U CN204511808U CN201520148068.4U CN201520148068U CN204511808U CN 204511808 U CN204511808 U CN 204511808U CN 201520148068 U CN201520148068 U CN 201520148068U CN 204511808 U CN204511808 U CN 204511808U
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- CN
- China
- Prior art keywords
- valve
- vacuum
- extraction
- extraction valve
- valve body
- 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 a kind of vacuum pipe evacuation, aim to provide a kind of damage in inner significant components to make, realize the vacuum pipe evacuation of secondary seal, its drip irrigation device is, comprise vacuum valve seat, extraction valve valve body, vacuum valve seat inside is provided with vacuum spool, vacuum spool is provided with inner seal structure, extraction valve valve inner is provided with extraction valve valve rod, vacuum spool is fixed on extraction valve valve rod, the joint of extraction valve valve body and vacuum valve seat is provided with the first outer seal configuration, the second outer seal configuration is provided with between extraction valve valve rod and extraction valve valve body.Pass through such scheme; pass through inner seal structure; the vacuum state of effective protection vacuum pipe inside; when inner seal structure damages; inner seal structure will be replaced by the first outer seal configuration and the second outer seal configuration; directly continue on former basis when lower task, reduce workload, when ensureing that inner vitals damages, still can ensure original degree of vacuum.
Description
Technical field
The utility model relates to vacuum valve technical field, and more particularly, it relates to vacuum pipe evacuation.
Background technique
Sky divides and low temperature industry adopts vacuum tube form in Liquid transfer, ensure that the liquid gasification rate in transmitting procedure, product yield is guaranteed.Vacuum pipe is in the middle of working process, vacuumizing of pipeline is a crucial step, there is inconvenient operation in the apparatus for vacuum producing that present market exists, problems such as damaging easily is there is with vacuum pipe joint, effectively can not seal when significant components is damaged, thus can not ensure that the original degree of vacuum of vacuum pipe causes the situations such as previous work waste.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of when inner significant components is damaged, and realizes the vacuum pipe evacuation of secondary seal.
For achieving the above object, the utility model provides following technological scheme:
A kind of vacuum pipe evacuation, comprise vacuum valve seat, extraction valve valve body, described extraction valve valve body is provided with extraction valve adapter, described extraction valve valve body is socketed on vacuum valve seat, described vacuum valve seat inside is provided with vacuum spool, described vacuum spool is provided with inner seal structure, described extraction valve valve inner is provided with extraction valve valve rod, described vacuum spool is fixed on extraction valve valve rod, and be pushed on vacuum valve seat by extraction valve valve rod and carry out inner sealing, the joint of described extraction valve valve body and vacuum valve seat is provided with the first outer seal configuration, the second outer seal configuration is provided with between described extraction valve valve rod and extraction valve valve body.
By adopting technique scheme; by extraction valve valve body, vacuum valve seat docking is found time; when degree of vacuum reaches requirement; under vacuum conditions the extraction valve valve rod of extraction valve valve inner is pressed and seal; the vacuum state of effective protection vacuum pipe inside; in addition; when inner seal structure damages; inner seal structure will be replaced by the first outer seal configuration and the second outer seal configuration; directly continue on former basis when lower task; reduce workload, when ensureing that inner vitals damages, still can ensure original degree of vacuum.
The utility model is set to further: described first outer seal structure comprises the first circular groove be positioned on extraction valve valve body end face, the first seal ring being positioned at the first circular groove and the pad be positioned on the first seal ring.
By adopting technique scheme, the first seal ring and pad effect, pad can extrude the first seal ring, and the first seal ring is clamped, and barriering effect is better.
The utility model is set to further: the diameter of described first circular groove is greater than the diameter of described pad.
By adopting technique scheme, ensureing that pad better acts directly on the first seal ring, avoiding pad and the first circular groove mutually to disturb.
The utility model is set to further: the cross section of described first circular groove is triangular in shape.
By adopting technique scheme, being more conducive to the first seal ring in the first circular groove extrusion-deformation, the outer ring of the first seal ring is affixed on each limit of triangle.
The utility model is set to further: described second outer seal configuration comprises the annular chamber be positioned on extraction valve valve body, the lining be positioned on extraction valve valve rod, on the end face of described annular chamber vacuum valve seat side dorsad.
By adopting technique scheme, the setting of lining can make to be in sealing state between extraction valve valve rod and extraction valve valve body, in the work of extraction valve stem movement, remains sealing state, ensure when inner important spare part damages, can secondary seal be carried out.
The utility model is set to further: described lining is provided with the second circular groove, is provided with the second seal ring in described second circular groove.
By adopting technique scheme, the second seal ring further ensures the sealing effect of lining.
Accompanying drawing explanation
Fig. 1 is the overall sectional view of the utility model vacuum pipe evacuation;
Fig. 2 is the partial sectional view of vacuum pipe evacuation.
In figure: 1, vacuum valve seat; 2, pad; 3, the first seal ring; 4, the first circular groove; 5, inner seal structure; 6, vacuum spool; 7, extraction valve adapter; 8, the second seal ring; 9, the second circular groove; 10, extraction valve valve body; 11, extraction valve valve rod; 12, lining; 13, annular chamber.
Embodiment
Referring to figs. 1 through Fig. 2, the utility model vacuum pipe evacuation embodiment is described further.
A kind of vacuum pipe evacuation, comprise vacuum valve seat 1, extraction valve valve body 10, extraction valve valve body 10 is provided with extraction valve adapter 7, extraction valve valve body 10 is socketed on vacuum valve seat 1, vacuum valve seat 1 inside is provided with vacuum spool 6, vacuum spool 6 is provided with inner seal structure 5.
Inner seal structure 5 is positioned at the depression seal groove on vacuum spool 6, some inner seal rings (not marking in figure) are provided with between depression seal groove and the inwall of vacuum valve seat 1, after vacuum spool 6 embeds vacuum valve seat 1, inner seal ring can seal with the inwall of vacuum spool 6.
Extraction valve valve body 10 inside is provided with extraction valve valve rod 11, and vacuum spool 6 is fixed on extraction valve valve rod 11, and is pushed on vacuum valve seat 1 by extraction valve valve rod 11 and carries out inner sealing.
Extraction valve valve body 10 is provided with the first outer seal configuration with the joint of vacuum valve seat 1, and the first outer seal structure comprises the first circular groove 4 be positioned on extraction valve valve body 10 end face, the first seal ring 3 being positioned at the first circular groove 4 and the pad 2 be positioned on the first seal ring 3.
In order to the first seal ring 3 energy and pad 2 interact, the diameter of the first circular groove 4 is greater than the diameter of pad 2, and the first seal ring 3 is clamped, and barriering effect is better
In order to ensure that pad 2 better acts directly on the first seal ring 3, the cross section of the first circular groove 4 is triangular in shape, avoids pad 2 and the first circular groove 4 mutually to disturb.
The second outer seal configuration is provided with between extraction valve valve rod 11 and extraction valve valve body 10, second outer seal configuration comprises the annular chamber 13 be positioned on extraction valve valve body 10, the lining 12 be positioned on extraction valve valve rod 11, on the end face of annular chamber 13 vacuum valve seat 1 side dorsad, lining 12 is provided with in the second circular groove 9, second circular groove 9 and is provided with the second seal ring 8.
By adopting technique scheme; found time by 10 pairs of vacuum valve seat 1 docking of extraction valve valve body; when degree of vacuum reaches requirement; under vacuum conditions the extraction valve valve rod 11 of extraction valve valve body 10 inside is pressed; sealed by interior sealing mechanism, the vacuum state of effective protection vacuum pipe inside.
When inner seal structure 5 damages time, inner seal structure 5 will be replaced by the first outer seal configuration and the second outer seal configuration, directly continue on former basis when lower task, reduce workload, when ensureing that inner vitals damages, still can ensure original degree of vacuum.
Below be only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a vacuum pipe evacuation, comprise vacuum valve seat, extraction valve valve body, it is characterized in that: described extraction valve valve body is provided with extraction valve adapter, described extraction valve valve body is socketed on vacuum valve seat, described vacuum valve seat inside is provided with vacuum spool, described vacuum spool is provided with inner seal structure, described extraction valve valve inner is provided with extraction valve valve rod, described vacuum spool is fixed on extraction valve valve rod, the joint of described extraction valve valve body and vacuum valve seat is provided with the first outer seal configuration, the second outer seal configuration is provided with between described extraction valve valve rod and extraction valve valve body.
2. vacuum pipe evacuation according to claim 1, is characterized in that: described first outer seal structure comprises the first circular groove be positioned on extraction valve valve body end face, the first seal ring being positioned at the first circular groove and the pad be positioned on the first seal ring.
3. vacuum pipe evacuation according to claim 2, is characterized in that: the diameter of described first circular groove is greater than the diameter of described pad.
4. vacuum pipe evacuation according to claim 3, is characterized in that: the cross section of described first circular groove is triangular in shape.
5. the vacuum pipe evacuation according to claim 1 or 4, is characterized in that: described second outer seal configuration comprises the annular chamber be positioned on extraction valve valve body, the lining be positioned on extraction valve valve rod, on the end face of described annular chamber vacuum valve seat side dorsad.
6. vacuum pipe evacuation according to claim 5, is characterized in that: described lining is provided with the second circular groove, is provided with the second seal ring in described second circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520148068.4U CN204511808U (en) | 2015-03-16 | 2015-03-16 | Vacuum pipe evacuation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520148068.4U CN204511808U (en) | 2015-03-16 | 2015-03-16 | Vacuum pipe evacuation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511808U true CN204511808U (en) | 2015-07-29 |
Family
ID=53709791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520148068.4U Expired - Fee Related CN204511808U (en) | 2015-03-16 | 2015-03-16 | Vacuum pipe evacuation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511808U (en) |
-
2015
- 2015-03-16 CN CN201520148068.4U patent/CN204511808U/en not_active Expired - Fee Related
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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: 20150729 Termination date: 20160316 |