CN207913269U - Multi-stage absorption formula cold-trap - Google Patents
Multi-stage absorption formula cold-trap Download PDFInfo
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- CN207913269U CN207913269U CN201721899692.3U CN201721899692U CN207913269U CN 207913269 U CN207913269 U CN 207913269U CN 201721899692 U CN201721899692 U CN 201721899692U CN 207913269 U CN207913269 U CN 207913269U
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Abstract
The utility model discloses a kind of multi-stage absorption formula cold-traps, including adsorption box, inlet flange and exhaust flange is respectively set in the opposite sides of the adsorption box, several grades of cold-traps are set side by side in the adsorption box, every grade of cold-trap includes serpentine condenser and fin, the serpentine condenser includes the inflow pipe and return duct for being spaced connection successively, the pumping side-lower in inflow pipe is arranged in the return duct, the fin being connect with the inflow pipe is inclined at below the air inlet side of inflow pipe, the fin being connect with the return duct is inclined above return duct side, Temperature of Working is reduced step by step by airflow direction in the serpentine condenser, the lower section of several grades of cold-traps is equipped with inclined bottom plate, the bottom plate is equipped with fluid collecting tank.The multi-stage absorption formula cold-trap ensures the full collection of lube vapor to greatest extent, and the working vacuum degree of vacuum system is made to be better than 10‑3Pa。
Description
Technical field
The utility model is related to a kind of oil gas adsorbent equipment, especially a kind of multi-stage absorption formula cold-trap.
Background technology
The main application of lubricant grease vacuum flush system is the high vacuum of lubricant grease.Vacuum ring in vacuum tank
Border needs the running for vacuumizing unit by mechanical pump and molecular pump etc. to be maintained.The lube vapor volatilized in order to prevent
As exhaust pipe pollutes molecular pump, the vacuum capability of molecular pump is reduced, to influence the true of vacuum chamber into molecular pump
Reciprocal of duty cycle needs the adsorbent equipment that suitable lube vapor is arranged between vacuum chamber and molecular pump, it is ensured that the lubrication volatilized
Oil vapour can be condensed all, and carry out the collection and cleaning of lube vapor.
Utility model content
Defect for the above-mentioned prior art, the task of the utility model are to provide a kind of multi-stage absorption formula cold-trap, solve
The problem of adsorbing lube vapor in vacuum chamber.
Technical solutions of the utility model are as follows：A kind of multi-stage absorption formula cold-trap, including adsorption box, the adsorption box it is opposite
Inlet flange and exhaust flange is respectively set in both sides, and several grades of cold-traps, every grade of cold-trap are set side by side in the adsorption box
Including serpentine condenser and fin, the serpentine condenser includes the inflow pipe and return duct for being spaced connection successively, the reflux
The pumping side-lower in inflow pipe is arranged in pipe, and the fin being connect with the inflow pipe is inclined under the air inlet side of inflow pipe
Side, the fin being connect with the return duct are inclined above return duct air inlet side, Temperature of Working in the serpentine condenser
It is reduced step by step by airflow direction, the lower section of several grades of cold-traps is equipped with inclined bottom plate, and the bottom plate is equipped with fluid collecting tank.
Further, the cold-trap includes the level-one cold-trap set gradually from inlet flange to exhaust flange, two level cold-trap
With three-level cold-trap, the interior normal temperature circulation water that circulates of the serpentine condenser of the level-one cold-trap, the serpentine condenser of the two level cold-trap
Interior circulation fluid of the circulation not less than -60 DEG C, interior circulation fluid of the circulation not less than -140 DEG C of serpentine condenser of the three-level cold-trap.
Further, connecting flange is arranged in the end side of the adsorption box, and the serpentine condenser passes through the connecting flange
Pipe joint is set outside the adsorption box.
Further, the connecting flange is connected with fluid collecting pipe, and the fluid collecting tank passes through the connecting flange
It is connected to fluid collecting pipe.
Further, the fin angle of inclination is 30 °~60 °.
The utility model compared with prior art the advantages of be：When high temperature lubricating oil vapour is by the cold-trap of classification, by
The fin of low temperature is condensed into liquid and collects, and the serpentine condenser by cooling down step by step makes rear class cold-trap not fill backing side trap
Divide the lube vapor of condensation to do further condensation to collect.The full collection of lube vapor is ensured to greatest extent, it is cold by three-level
Solidifying system can ensure that the working vacuum degree of vacuum system is better than 10-3Pa。
Description of the drawings
Fig. 1 is the main structure diagram of multi-stage absorption formula cold-trap.
Fig. 2 is the side structure schematic view of multi-stage absorption formula cold-trap.
Specific implementation mode
With reference to embodiment, the utility model is described in further detail, but not as the restriction to the utility model.
Shown in Fig. 1 and Fig. 2, the multi-stage absorption formula cold-trap that the present embodiment is related to, main body is the adsorption box of sealing
1, in order to improve effective installation space in the present embodiment, space availability ratio is high, 1 squarely of adsorption box setting, in other embodiment party
Cylindrical it can also be arranged in formula.Inlet flange 2 and exhaust flange 3 is respectively set in the left and right sides of rectangular adsorption box 1, into
Gas flange 2 and vacuum chamber, exhaust flange 3 are connect with vacuum pump.Left shielded layer 4 and right screen are respectively set in adsorption box 1
Layer 5 is covered, left shielded layer 4 and right shielded layer 5 enclose a unsealed adsorption space, the lower plate of left shielded layer 4 and right shielded layer 5
Lower plate be in tilted layout respectively, the two constitutes the bottom plate 6 of inclined collectable fluid.Lower plate in left shielded layer 4 and right screen
The lower plate intersection for covering layer 5 is provided with to inclined fluid collecting tank 7 on front side of adsorption box 1.The condensation fluid collected by bottom plate 6 into
It is flowed to 1 front end side of adsorption box after entering fluid collecting tank 7.
Shown in Fig. 2,1 front end side of adsorption box be provided with square flange 8, and provided with matched with square flange 8 into
The connecting flange 9 of row sealing.The level-one cold-trap being arranged in order from inlet flange 2 to exhaust flange 3 is provided on the connecting flange 9
10, two level cold-trap 11 and three-level cold-trap 12.Level-one cold-trap 10, two level cold-trap 11 are identical with 12 structure of three-level cold-trap, all include snake
Shape condenser pipe 13 and fin 14.The work flowed in the serpentine condenser 13 of level-one cold-trap 10, two level cold-trap 11 and three-level cold-trap 12
Matter is different, and wherein circulate in the serpentine condenser 13 of level-one cold-trap 10 normal temperature circulation water, the serpentine condenser 13 of two level cold-trap 11
Interior circulation fluid of the circulation not less than -60 DEG C, interior circulation fluid of the circulation not less than -140 DEG C of serpentine condenser 13 of three-level cold-trap 12.
Pipe joint 15 is arranged by connecting flange 9 in all serpentine condensers 13 outside adsorption box 1.In addition to setting on connecting flange 9
Have outside pipe joint 15, for the ease of observing the collection situation of lubricating oil, is also provided with vertical fluid collecting pipe 16.Fluid
Collecting pipe 16 is glass tube, and when connection method 9 is connect with the square flange 8 of adsorption box 1,1 inner fluid collecting tank 7 of adsorption box is logical
It crosses connecting flange 9 to be connected to fluid collecting pipe 16, the fluid collected flows into fluid collecting pipe 16.
Shown in Fig. 1, the concrete structure of serpentine condenser 13 and fin 14 is such, and serpentine condenser 13 includes
It is spaced the inflow pipe 13a and return duct 13b of connection successively, wherein inflow pipe 13a settings are arranged in left side, return duct 13b on the right side
Side, while each section of inflow pipe 13a is higher than corresponding return duct 13b.I.e. working medium is located at its pumping from the first inflow pipe 13a flow directions
The return duct 13b of (Fig. 1 is lower right-hand side) below gas side, then the second inflow pipe 13a is flowed into, then flow direction is located at the second inflow pipe
It is evacuated the return duct 13b of side-lower, then flows into third inflow pipe 13a, and so on.Each inflow pipe 13a and return duct 13b
It is all fixedly connected with fin 14, on the one hand the effect of fin 14 expands the contact area with lube vapor, lubricating oil is made to steam
Gas fully condenses, while being also condensed lubricating oil collecting board.In order to improve collection efficiency, the wing that is connect with inflow pipe 13a
Piece 14 is arranged below the air inlet side of inflow pipe 13a with 30 °~60 ° inclinations angle (for below left side in Fig. 1), with return duct 13b
The fin 14 of connection is arranged above the sides return duct 13b with 30 °~60 ° inclinations angle (for above left side in Fig. 1), is arranged such to the greatest extent
Lube vapor may be made to be contacted with fin 14 and reduce with the contact of serpentine condenser 13, reduce the clear of serpentine condenser 13
Clean maintenance work.
The multi-stage absorption formula cold-trap work when, lube vapor from inlet flange 2 enter adsorption box 1, adsorption space according to
Fin 14, the two level cold-trap 11 of the fin 14 of the inflow pipe 13a of secondary contact level-one cold-trap 10, the return duct 13b of level-one cold-trap 10
The fin 14 of inflow pipe 13a, the fin 14 of return duct 13b of two level cold-trap 11, three-level cold-trap 12 inflow pipe 13a fin
14, the fin 14 of the return duct 13b of three-level cold-trap 12.High temperature lubricating oil vapour cools down and is condensed into rapidly by level-one cold-trap 10
Liquid, the fraction that the overwhelming majority volatilizes are condensed into liquid in this grade and collect；The profit not condensed in time by level-one cold-trap 10
Lubricating oil steam again passes by 11 cryostat of two level cold-trap cooling, and most steams are by cryogenic conditions total condensation；Three-level cold-trap 12
All it can will condense and collect by the low pressure volatile matter of the preceding non-total condensation of two-stage cold-trap, the condensation profit of final all collections
The bottom plate 6 that lubricating oil is built by left shielded layer 4 and right shielded layer 5 flows into fluid collecting pipe 16 from fluid collecting tank 7 and completes to condense
It collects.
Claims (5)
1. a kind of multi-stage absorption formula cold-trap, it is characterised in that：Including adsorption box, the opposite sides of the adsorption box be respectively set into
Gas flange and exhaust flange are set side by side with several grades of cold-traps in the adsorption box, and every grade of cold-trap includes serpentine condenser
And fin, the serpentine condenser include the inflow pipe and return duct for being spaced connection successively, the return duct is arranged in inflow pipe
Pumping side-lower, the fin being connect with the inflow pipe is inclined at below the air inlet side of inflow pipe, with the return duct
The fin of connection is inclined above return duct air inlet side, and Temperature of Working is dropped step by step by airflow direction in the serpentine condenser
Low, the lower section of several grades of cold-traps is equipped with inclined bottom plate, and the bottom plate is equipped with fluid collecting tank.
2. multi-stage absorption formula cold-trap according to claim 1, it is characterised in that：The cold-trap includes from inlet flange to pumping
The interior stream of serpentine condenser of level-one cold-trap, two level cold-trap and the three-level cold-trap that gas flange is set gradually, the level-one cold-trap is usual
Warm recirculated water, circulation fluid of the circulation not less than -60 DEG C in the serpentine condenser of the two level cold-trap, the three-level cold-trap it is snakelike
Circulation fluid of the circulation not less than -140 DEG C in condenser pipe.
3. multi-stage absorption formula cold-trap according to claim 1, it is characterised in that：Connection method is arranged in the end side of the adsorption box
Pipe joint is arranged outside the adsorption box by the connecting flange in orchid, the serpentine condenser.
4. multi-stage absorption formula cold-trap according to claim 3, it is characterised in that：The connecting flange is connected with fluid collection
Pipe, the fluid collecting tank are connected to by the connecting flange with fluid collecting pipe.
5. multi-stage absorption formula cold-trap according to claim 1, it is characterised in that：The fin angle of inclination be 30 °~
60°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721899692.3U CN207913269U (en) | 2017-12-29 | 2017-12-29 | Multi-stage absorption formula cold-trap |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721899692.3U CN207913269U (en) | 2017-12-29 | 2017-12-29 | Multi-stage absorption formula cold-trap |
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| Publication Number | Publication Date |
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| CN207913269U true CN207913269U (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721899692.3U Active CN207913269U (en) | 2017-12-29 | 2017-12-29 | Multi-stage absorption formula cold-trap |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567835A (en) * | 2019-09-30 | 2019-12-13 | 安徽金联地矿科技有限公司 | Soil sample treatment device and method based on heavy metal detection |
| CN113457197A (en) * | 2021-06-16 | 2021-10-01 | 上海煜志科技有限公司 | Sublimation instrument vacuum system and control method thereof |
| CN114322464A (en) * | 2020-09-30 | 2022-04-12 | 浙江同景新能源集团有限公司 | Cold trap system of freeze-drying equipment |
-
2017
- 2017-12-29 CN CN201721899692.3U patent/CN207913269U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567835A (en) * | 2019-09-30 | 2019-12-13 | 安徽金联地矿科技有限公司 | Soil sample treatment device and method based on heavy metal detection |
| CN110567835B (en) * | 2019-09-30 | 2022-06-14 | 安徽金联地矿科技有限公司 | Soil sample treatment device and method based on heavy metal detection |
| CN114322464A (en) * | 2020-09-30 | 2022-04-12 | 浙江同景新能源集团有限公司 | Cold trap system of freeze-drying equipment |
| CN113457197A (en) * | 2021-06-16 | 2021-10-01 | 上海煜志科技有限公司 | Sublimation instrument vacuum system and control method thereof |
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