CN203023670U - Liquid nitrogen tube sealing structure for big-caliber cryogenic pump - Google Patents
Liquid nitrogen tube sealing structure for big-caliber cryogenic pump Download PDFInfo
- Publication number
- CN203023670U CN203023670U CN 201220689680 CN201220689680U CN203023670U CN 203023670 U CN203023670 U CN 203023670U CN 201220689680 CN201220689680 CN 201220689680 CN 201220689680 U CN201220689680 U CN 201220689680U CN 203023670 U CN203023670 U CN 203023670U
- Authority
- CN
- China
- Prior art keywords
- liquid nitrogen
- flange
- tube
- heat insulation
- pipe
- 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
Images
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a liquid nitrogen tube sealing structure for a big-caliber cryogenic pump. The liquid nitrogen tube sealing structure comprises a guide frame arranged on a pump body. A guide frame pressing plate is arranged on one side of the upper end of the guide frame. A sealed tube is arranged between the guide frame and the guide frame pressing plate. A connector is arranged on the end portion of the upper end of the sealed tube, and the end portion of the lower end of the sealed tube is connected with a corrugated tube and is inserted into the pump body. A liquid nitrogen tube is arranged in the sealed tube through a support ring and is communicated with the corrugated tube. A fastening flange and a heat insulation flange which are fixedly connected with each other are arranged on the outer wall of the sealed tube. A seal liner is arranged between the heat insulation flange and the sealed tube. A plurality of sealing rings are arranged on the contact face between the seal liner and the heat insulation flange. A heat insulation cylinder which is sleeved outside the sealed tube is arranged between the heat insulation cylinder and the pump body. The liquid nitrogen tube sealing structure is simple and reasonable, convenient to install and maintain, good in anti-vibration capacity, and long in service life, has good heat insulation and sealing effects, and effectively guarantees safe running of the cryogenic pump.
Description
Technical field
The utility model relates to a kind of sealing configuration, is specially a kind of liquid nitrogen pipe sealing configuration for the heavy caliber cryopump.
Background technique
At present, the liquid nitrogen pipe sealing means of heavy caliber cryopump adopts direct welding manner substantially, as shown in Figure 1, namely liquid nitrogen pipe is welded direct on the housing of cryopump pump case, this structure has the following disadvantages: the liquid nitrogen pipe weld leaks heat seriously, cryopump surface large size is born water, and the power supply of arranging around cryopump more, thereby cause the fault such as short circuit; After the liquid nitrogen pipe welding, in case the inner liquid nitrogen assembly of cryopump damages, whole liquid nitrogen parts can't be realized dismounting, must keep in repair the liquid nitrogen assembly with the cost of damaging the cryopump housing, and maintenance cost is high; Liquid nitrogen pipe directly welding weakens the cryogenic pipe part anti-vibration ability of cryopump, because cryopump vibrations in service are larger, directly welds the working life of directly having reduced the cryopump cryogenic pipe.
The model utility content
The purpose of this utility model is to provide a kind of liquid nitrogen pipe sealing configuration for the heavy caliber cryopump, adopt direct welding manner with the liquid nitrogen pipe sealing that solves heavy caliber cryopump traditional in prior art, exist the liquid nitrogen pipe weld to leak heat seriously, easily cause the surperficial large size of cryopump to bear water and then cause the defective of the faults such as short circuit, maintenance inconvenience and cost are high, the anti-vibration ability is not good, the problem that working life is short.
For achieving the above object, the technical solution adopted in the utility model is:
a kind of liquid nitrogen pipe sealing configuration for the heavy caliber cryopump, it is characterized in that: include the leading truck that is arranged on the pump housing, described leading truck upper end one side is equipped with pressure plate of guiding frame, between described leading truck and pressure plate of guiding frame, sealed pipe is installed, end, described sealed pipe upper end is equipped with joint, the end, lower end is connected with bellows and stretches in the pump housing, by support ring, liquid nitrogen pipe is installed in described sealed pipe, described liquid nitrogen pipe is communicated with bellows, clamp flange and adiabatic flange from top to bottom are installed on described sealed pipe outer wall successively, be fixedly connected with by clamping bolt between described clamp flange and adiabatic flange, be provided with liner between described adiabatic flange and sealed pipe, a plurality of seal rings are installed on the surface of contact of described liner and adiabatic flange, be equipped with between described adiabatic flange and the pump housing and be placed in the outer adiabatic cylinder of sealed pipe.
The beneficial effects of the utility model are:
The utility model is simple and reasonable, convenient for installation and maintenance, liquid nitrogen pipe adopts adiabatic fit sealing mode to be connected on the pump housing of cryopump, the vacuum sandwich that forms by sealed pipe and liquid nitrogen pipe plays heat insulating function, realizes dual face seals by liner and clamping device, therefore has adiabatic sealing effect preferably, optimize product performance, increased life of product and rate of maintenance, reduced maintenance cost, and the anti-vibration ability is better, has effectively ensured the safe operation of cryopump.
Description of drawings
Fig. 1 is traditional heavy caliber cryopump and the schematic diagram of liquid nitrogen pipe Placement.
Fig. 2 is traditional heavy caliber cryopump and the plan view of liquid nitrogen pipe Placement.
Fig. 3 is traditional heavy caliber cryopump and the stereogram of liquid nitrogen pipe Placement.
Fig. 4 is structural representation of the present utility model.
Fig. 5 is plan view of the present utility model.
Fig. 6 is stereogram of the present utility model.
Embodiment
as shown in Figure 4, a kind of liquid nitrogen pipe sealing configuration for the heavy caliber cryopump, include the leading truck 14 that is arranged on the pump housing 12, leading truck 14 upper end one sides are equipped with pressure plate of guiding frame 5, between leading truck 14 and pressure plate of guiding frame 5, sealed pipe 2 is installed, sealed pipe 2 ends, upper end are equipped with joint 1, the end, lower end is connected with bellows 13 and stretches in the pump housing 12, by support ring 3, liquid nitrogen pipe 4 is installed in sealed pipe 2, liquid nitrogen pipe 4 is communicated with bellows 13, clamp flange 7 and adiabatic flange 10 from top to bottom are installed on sealed pipe 2 outer walls successively, be fixedly connected with by clamping bolt 6 between clamp flange 7 and adiabatic flange 10, be provided with liner 8 between adiabatic flange 10 and sealed pipe 2, on the surface of contact of liner 8 and adiabatic flange 10, a plurality of seal rings 9 are installed, be equipped with between adiabatic flange 10 and the pump housing 12 and be placed in the outer adiabatic cylinder 11 of sealed pipe 2.
Claims (1)
1. liquid nitrogen pipe sealing configuration that is used for the heavy caliber cryopump, it is characterized in that: include the leading truck that is arranged on the pump housing, described leading truck upper end one side is equipped with pressure plate of guiding frame, between described leading truck and pressure plate of guiding frame, sealed pipe is installed, end, described sealed pipe upper end is equipped with joint, the end, lower end is connected with bellows and stretches in the pump housing, by support ring, liquid nitrogen pipe is installed in described sealed pipe, described liquid nitrogen pipe is communicated with bellows, clamp flange and adiabatic flange from top to bottom are installed on described sealed pipe outer wall successively, be fixedly connected with by clamping bolt between described clamp flange and adiabatic flange, be provided with liner between described adiabatic flange and sealed pipe, a plurality of seal rings are installed on the surface of contact of described liner and adiabatic flange, be equipped with between described adiabatic flange and the pump housing and be placed in the outer adiabatic cylinder of sealed pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220689680 CN203023670U (en) | 2012-12-13 | 2012-12-13 | Liquid nitrogen tube sealing structure for big-caliber cryogenic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220689680 CN203023670U (en) | 2012-12-13 | 2012-12-13 | Liquid nitrogen tube sealing structure for big-caliber cryogenic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023670U true CN203023670U (en) | 2013-06-26 |
Family
ID=48647655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220689680 Expired - Fee Related CN203023670U (en) | 2012-12-13 | 2012-12-13 | Liquid nitrogen tube sealing structure for big-caliber cryogenic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023670U (en) |
-
2012
- 2012-12-13 CN CN 201220689680 patent/CN203023670U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202171522U (en) | Heat exchanger leak detection device | |
| CN110426277B (en) | High-pressure sealing butt joint device for water pressure test of coiled pipe heat exchange module | |
| CN206468989U (en) | A kind of high efficiency pipe leakage point sealing device | |
| CN104697730A (en) | Detection device for detecting tightness of freezing pipe | |
| CN203023670U (en) | Liquid nitrogen tube sealing structure for big-caliber cryogenic pump | |
| CN201706134U (en) | Fastener for blocking underwater pipeline | |
| CN202470868U (en) | Connection structure at tail end of copper coil in water tank | |
| CN204479252U (en) | The structure for pressure test of final drive casing | |
| CN208331245U (en) | Seal for pipe joints circle and assembling pipe joint | |
| CN210690223U (en) | High-pressure sealing butt joint device for hydrostatic test of coiled tube heat exchange module | |
| CN210442061U (en) | High-pressure stop device for hydrostatic test of coiled tube heat exchange module | |
| CN204847944U (en) | Quick plugging device of hydraulic tubing for hoist | |
| CN214222235U (en) | High-efficient heat-insulating oil pipe | |
| CN203732372U (en) | Collecting tube water pressure test fixture | |
| CN203162385U (en) | Sealing device for external condensate water pipe of vacuum system | |
| CN204612879U (en) | A kind of pick-up unit detecting freezing pipe sealing | |
| CN217634567U (en) | Universal spiral pressure leaking stoppage device | |
| CN218494465U (en) | Low temperature pipeline's leakproofness detection device | |
| CN211920901U (en) | Solar water purification equipment | |
| CN104214466A (en) | Under-pressure leakage-stopping method for middle/low-pressure low-temperature pipeline | |
| CN202599615U (en) | Pressure testing device for pull rod type floating head heat exchanger | |
| CN203443437U (en) | External heat removal device | |
| CN221374984U (en) | Insulation construction based on heating pipeline is convenient for install | |
| CN201429288Y (en) | Upright stop valve with connecting nut | |
| CN221462300U (en) | Intelligent monitoring equipment for natural gas wellhead |
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: 20130626 Termination date: 20151213 |
|
| EXPY | Termination of patent right or utility model |