CN219764531U - Wellhead vacuum transition box - Google Patents
Wellhead vacuum transition box Download PDFInfo
- Publication number
- CN219764531U CN219764531U CN202320665663.XU CN202320665663U CN219764531U CN 219764531 U CN219764531 U CN 219764531U CN 202320665663 U CN202320665663 U CN 202320665663U CN 219764531 U CN219764531 U CN 219764531U
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- China
- Prior art keywords
- flange
- vacuum
- case body
- transition
- pipe
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- 230000007704 transition Effects 0.000 title claims abstract description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 22
- 230000000149 penetrating effect Effects 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 230000035515 penetration Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000005372 isotope separation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model belongs to the technical field of stable isotope separation equipment, and particularly relates to a wellhead vacuum transition box. Including the transition case body, the upper end of transition case body is provided with first flange, and the lower extreme of transition case body is provided with the second flange, all corresponds on first flange and the second flange to be provided with a plurality of through-holes and a plurality of transitional hole that supply the rectifying column to pass, still is provided with a plurality of nitrogen output tubes, a plurality of liquid nitrogen input tubes, a plurality of inlet pipes, a plurality of discharging pipes and a plurality of penetrating members on the first flange, all binds the companion area on a plurality of penetrating members. Be provided with nitrogen output tube, liquid nitrogen input tube, inlet pipe, discharging pipe and penetrating member on the first flange to realize the exchange of vacuum hood inner and outer pipeline when guaranteeing the leakproofness, make thermal-insulated in the tower obtain effectual assurance, all bind the companion's area of heating on the penetrating member, play homothermal effect, can avoid the problem that the leakproofness between cable and the penetrating member that leads to because of expend with heat and contract with cold reduces.
Description
Technical Field
The utility model belongs to the technical field of stable isotope separation equipment, and particularly relates to a wellhead vacuum transition box.
Background
In stable isotope rectification, the production technology has low temperature, low separation coefficient and high theoretical plate number. In order to avoid the interference of factors such as external environment, the rectifying tower is usually arranged in a deep well. The rectifying tower adopts multilayer heat insulation, and the outside is a vacuum cover for keeping the internal vacuum. The heater power line, the resistance meter control line, the liquid nitrogen input pipe, the nitrogen output pipe and the carbon monoxide feed and discharge pipe in the rectifying tower are required to be led out of the tower, but when the pipelines pass out of the tower or pass into the tower, the vacuum degree in the tower is usually destroyed, so that the heat insulation is influenced, and the low-temperature rectification work is seriously influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a wellhead vacuum transition box, and particularly discloses the following technical scheme:
the utility model provides a well head vacuum transition case, includes the transition case body, the upper end of transition case body is provided with the first flange that is used for connecting the vacuum cover, the lower extreme of transition case body is provided with the second flange that is used for connecting the vacuum cover down, all correspond on first flange and the second flange and be provided with a plurality of through-holes and a plurality of transitional hole that supply the rectifying column to pass, still be provided with a plurality of nitrogen output tubes, a plurality of liquid nitrogen input tube, a plurality of inlet pipe, a plurality of discharging pipe and a plurality of penetration piece that supplies the cable to pass on the first flange, a plurality of all bind the companion area on the penetration piece, the intercommunication has a plurality of vacuum flange on the lateral wall of transition case body.
Further, bolt holes are formed in the periphery of the first flange and the periphery of the second flange, the first flange is connected with the upper vacuum cover through fixing bolts, and the second flange is connected with the lower vacuum cover through fixing bolts.
Further, the nitrogen output pipe, the liquid nitrogen input pipe, the feeding pipe and the discharging pipe penetrate through the first flange and are welded with the first flange.
Further, the first flange is a vacuum cover flange, and the second flange is a vacuum sleeve flange.
Further, the penetrating piece is welded at the bottom end of the first flange and is communicated with the upper side of the first flange.
Compared with the prior art, the utility model has the beneficial effects that:
the transition box is respectively connected with the upper vacuum cover and the lower vacuum cover of the rectifying tower through the first flange and the second flange at two ends, and the first flange is provided with a plurality of nitrogen output pipes, a plurality of liquid nitrogen input pipes, a plurality of feeding pipes, a plurality of discharging pipes and a plurality of penetrating pieces for the cables to pass through, so that the tightness and the vacuum degree are ensured, meanwhile, the exchange of pipelines inside and outside the vacuum cover is realized, and the heat insulation in the tower is effectively ensured; the heat tracing bands are bound on the penetrating piece and play a role in keeping constant temperature, so that the problem of reduced tightness between the cable and the penetrating piece caused by expansion and contraction of the penetrating piece can be avoided.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a side view of the present utility model.
The device comprises a 1-transition box body, a 2-first flange, a 3-second flange, a 4-nitrogen output pipe, a 5-liquid nitrogen input pipe, a 6-penetrating piece, a 7-vacuum connecting flange, 8-fixing bolts, 9-transition holes and a 10-rectifying column.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, a wellhead vacuum transition box comprises a transition box body 1, the upper end of transition box body 1 is provided with a first flange 2 that is used for connecting the vacuum hood, the lower extreme of transition box body 1 is provided with a second flange 3 that is used for connecting the vacuum hood down, all be provided with a plurality of through-holes that supply rectifying column 10 to pass and a plurality of transitional holes 9 on first flange 2 and correspond on the second flange 3, still be provided with a plurality of nitrogen gas output tube 4, a plurality of inlet pipe 5, a plurality of discharging pipe and a plurality of penetration piece 6 that supply the cable to pass on the first flange 2, a plurality of on the penetration piece 6 all bind the companion area, the intercommunication has a plurality of vacuum flange 7 on the lateral wall of transition box body 1, vacuum flange 7 can connect vacuum tube and vacuum pump to realize the evacuation in the vacuum hood.
The heater power line and the resistance meter control line outside the tower can enter the tower through the penetrating piece 6 and penetrate through the transition box through the transition hole 9 to be connected with the heating mechanism at the bottom of the rectifying tower, the heat tracing belt on the penetrating piece 6 plays a role in keeping constant temperature, the temperature of the penetrating piece 6 can be kept between 10 ℃ and 30 ℃, and therefore the problem of sealing reduction between the cable and the penetrating piece 6 caused by thermal expansion and contraction of the penetrating piece 6 is effectively avoided.
In this embodiment, the setting of inlet pipe and discharging pipe is mainly used to realize the exchange of the inside and outside material of tower.
In this embodiment, the periphery of the first flange 2 and the periphery of the second flange 3 are both provided with bolt holes, the first flange 2 is connected with the upper vacuum cover through fixing bolts 8, and the second flange 3 is connected with the lower vacuum cover through fixing bolts 8, so that the installation and the disassembly are convenient to realize.
In this embodiment, the nitrogen output pipe 4, the liquid nitrogen input pipe 5, the feed pipe and the discharge pipe all penetrate through the first flange 2 and are welded with the first flange 2. The nitrogen output pipe 4 and the liquid nitrogen input pipe 5 are respectively provided with connectors at the upper end (inside the tower) of the first flange 2 and the lower end (outside the tower) of the first flange 2, thereby being convenient for the connection of corresponding hoses.
In this embodiment, the first flange 2 is a vacuum cover flange, and the second flange 3 is a vacuum sleeve flange.
In this embodiment, the surface roughness of the first flange and the second flange both reach ra 3.2-1.6 μm.
In this embodiment, the penetrating member 6 is welded to the bottom end of the first flange 2 and is in communication with the upper side of the first flange 2.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model still fall within the scope of the technical solutions of the present utility model.
Claims (5)
1. The utility model provides a well head vacuum transition case, its characterized in that, includes the transition case body, the upper end of transition case body is provided with the first flange that is used for connecting the vacuum hood, the lower extreme of transition case body is provided with the second flange that is used for connecting the vacuum hood down, all correspond on first flange and the second flange and be provided with a plurality of through-holes and a plurality of transitional hole that supply the rectifying column to pass, still be provided with a plurality of nitrogen output tubes, a plurality of liquid nitrogen input tube, a plurality of inlet pipe, a plurality of discharging pipe and a plurality of penetration members that supply the cable to pass on the first flange, a plurality of all bind the companion area on the penetration member, the intercommunication has a plurality of vacuum flange on the lateral wall of transition case body.
2. The wellhead vacuum transition box of claim 1, wherein the periphery of the first flange and the periphery of the second flange are both provided with bolt holes, the first flange is connected with the upper vacuum housing by fixing bolts, and the second flange is connected with the lower vacuum housing by fixing bolts.
3. The vacuum transition box of claim 1, wherein the nitrogen output pipe, the liquid nitrogen input pipe, the feed pipe, and the discharge pipe all penetrate through the first flange and are welded with the first flange.
4. The vacuum transition box of claim 1, wherein the first flange is a vacuum shroud flange and the second flange is a vacuum sleeve flange.
5. A wellhead vacuum transition box according to claim 1, wherein the penetrating member is welded to the bottom end of the first flange and communicates with the top of the first flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320665663.XU CN219764531U (en) | 2023-03-29 | 2023-03-29 | Wellhead vacuum transition box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320665663.XU CN219764531U (en) | 2023-03-29 | 2023-03-29 | Wellhead vacuum transition box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219764531U true CN219764531U (en) | 2023-09-29 |
Family
ID=88109767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320665663.XU Active CN219764531U (en) | 2023-03-29 | 2023-03-29 | Wellhead vacuum transition box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219764531U (en) |
-
2023
- 2023-03-29 CN CN202320665663.XU patent/CN219764531U/en active Active
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