CN204628947U - A kind of blank flange - Google Patents
A kind of blank flange Download PDFInfo
- Publication number
- CN204628947U CN204628947U CN201520355837.8U CN201520355837U CN204628947U CN 204628947 U CN204628947 U CN 204628947U CN 201520355837 U CN201520355837 U CN 201520355837U CN 204628947 U CN204628947 U CN 204628947U
- Authority
- CN
- China
- Prior art keywords
- flange part
- blind plate
- plate portion
- flange
- blank
- 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
Links
Abstract
The utility model relates to a kind of blank flange, it comprises flange part and blind plate portion, described flange part is disc, the sidewall of described flange part is provided with outside thread, described blind plate portion is disc, described blind plate portion is provided with the depressed area of an accommodation flange part, the sidewall in described depressed area is provided with the internal thread matched with described outside thread, and described blind plate portion to be set in described flange part and to be threaded mutually with outside thread by internal thread.Blank flange after improvement makes the sealing between flange part and blind plate portion improve.Before the nuclear power station system hydrostatic test of in-service period, installment work between flange part with blind plate has greatly saved the field worker installation time compared with prior art, after estimating improvement, this work only needs 3 ~ 4 people coordinate to complete for 15 minutes, decreases the time that workman is irradiated.
Description
Technical field
the utility model relates to a kind of blank flange, particularly relates to the blank flange of a kind of nuclear power station hydraulic test of pipeline of in-service period.
Background technique
as shown in Figure 1, three generations's nuclear power station in-service period needs to do the hydrostatic test to section of tubing.Need isolate pipeline, and flange need use blind plate to carry out shutoff to flange as a kind of isolation boundary.Existing method many employings blind plate is connected with the bolt of flange, and ensureing gapless between the consistent guarantee flange of all bolt clipping forcees and blind plate, existing situation installs a blind plate needs 4-5 skilled worker's cooperating time of more than one hour could installation.Because nuclear power station part system radiation dose of in-service period is larger, the prolongation in man-hour is unfavorable for nuclear power station optimization of radiation protection principle.And when flange band boss, the plane blind plate sealing that existing situation adopts also is difficult to ensure.
Summary of the invention
technical problem to be solved in the utility model overcomes the deficiencies in the prior art, provides a kind of blank flange.
for solving above technical problem, the utility model takes following technological scheme:
a kind of blank flange, it comprises flange part and blind plate portion, described flange part is disc, the sidewall of described flange part is provided with outside thread, described blind plate portion is disc, described blind plate portion is provided with the depressed area of an accommodation flange part, the sidewall in described depressed area is provided with the internal thread matched with described outside thread, and described blind plate portion to be set in described flange part and to be threaded mutually with outside thread by internal thread.
preferably, described flange part is provided with a scrobicular ring near an end in blind plate portion, is provided with a pad for sealing in described scrobicular ring.
preferably, described flange part is a boss flange, and it comprises a boss part, and described boss part is arranged in depressed area.
due to the employing of above technological scheme, the utility model compared with prior art tool has the following advantages:
be threaded connection between flange part described in the utility model and blind plate portion, change dull and stereotyped blind plate of the prior art into spill blind plate, described depressed area is the accommodation district of flange part.Blank flange after improvement makes the sealing between flange part and blind plate portion improve.Before the nuclear power station system hydrostatic test of in-service period, installment work between flange part with blind plate has greatly saved the field worker installation time compared with prior art, after estimating improvement, this work only needs 3 ~ 4 people coordinate to complete for 15 minutes, decreases the time that workman is irradiated.
Accompanying drawing explanation
fig. 1 is the structural representation of blank flange of the prior art;
fig. 2 is the structural representation of a kind of embodiment of blank flange described in the utility model;
fig. 3 is the another kind of structural representation without the blank flange embodiment of boss described in the utility model;
fig. 4 is the structural representation in blind plate portion described in the utility model;
fig. 5 is the structural representation of flange part described in the utility model,
1, flange part; 2, blind plate portion; 3, outside thread; 4, internal thread; 5, depressed area.
Embodiment
as Fig. 2, 4, shown in 5, for the structural representation of a kind of blank flange described in the utility model, described blank flange comprises flange part 1 and blind plate portion 2, described flange part 1 is disc, the sidewall of described flange part 1 is provided with outside thread 3, described blind plate portion 2 is disc, described blind plate portion 2 is provided with the depressed area 5 of an accommodation flange part 1, described flange part 1 is a boss flange, comprise a boss part, described boss part is also arranged in depressed area 5, sidewall in described depressed area 5 is provided with the internal thread 4 matched with described outside thread 3, described blind plate portion 2 to be set in described flange part 1 and to be threaded mutually with outside thread 3 by internal thread 4.Described flange part 1 is provided with a scrobicular ring near an end in blind plate portion 2, being provided with a pad for sealing, because those skilled in the art know this technology already, thus, not showing in the accompanying drawings in described scrobicular ring.
be illustrated in figure 3 the blank flange structural representation not having boss of another kind of embodiment described in the utility model.
be threaded connection between flange part 1 described in the utility model and blind plate portion 2, change dull and stereotyped blind plate of the prior art into spill blind plate, described depressed area 5 is the accommodation district of flange part 1.Blank flange after improvement makes the sealing between flange part 1 and blind plate portion 2 improve.Before the nuclear power station system hydrostatic test of in-service period, flange part 1 has greatly saved the field worker installation time with the installment work between blind plate compared with prior art, after estimating improvement, this work only needs 3 ~ 4 people coordinate to complete for 15 minutes, decreases the time that workman is irradiated.
above the utility model is described in detail; the explanation of embodiment just understands method of the present utility model and core concept thereof for helping; its object is to allow the personage being familiar with this art can understand content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (3)
1.
a kind of blank flange, it comprises flange part and blind plate portion, it is characterized in that: described flange part is disc, the sidewall of described flange part is provided with outside thread, described blind plate portion is disc, described blind plate portion is provided with the depressed area of an accommodation flange part, the sidewall in described depressed area is provided with the internal thread matched with described outside thread, and described blind plate portion to be set in described flange part and to be threaded mutually with outside thread by internal thread.
2.
a kind of blank flange according to claim 1, is characterized in that: described flange part is provided with a scrobicular ring near an end in blind plate portion, is provided with a pad for sealing in described scrobicular ring.
3.
a kind of blank flange according to claim 2, is characterized in that: described flange part is a boss flange, and it comprises a boss part, and described boss part is arranged in depressed area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355837.8U CN204628947U (en) | 2015-05-28 | 2015-05-28 | A kind of blank flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355837.8U CN204628947U (en) | 2015-05-28 | 2015-05-28 | A kind of blank flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628947U true CN204628947U (en) | 2015-09-09 |
Family
ID=54047975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520355837.8U Expired - Fee Related CN204628947U (en) | 2015-05-28 | 2015-05-28 | A kind of blank flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832743A (en) * | 2015-05-28 | 2015-08-12 | 苏州热工研究院有限公司 | Blind flange |
-
2015
- 2015-05-28 CN CN201520355837.8U patent/CN204628947U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832743A (en) * | 2015-05-28 | 2015-08-12 | 苏州热工研究院有限公司 | Blind flange |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20190528 |