CN206499898U - Tetrahydrofuran gas-liquid cycle retracting device - Google Patents
Tetrahydrofuran gas-liquid cycle retracting device Download PDFInfo
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- CN206499898U CN206499898U CN201720163875.2U CN201720163875U CN206499898U CN 206499898 U CN206499898 U CN 206499898U CN 201720163875 U CN201720163875 U CN 201720163875U CN 206499898 U CN206499898 U CN 206499898U
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Abstract
The utility model is tetrahydrofuran gas-liquid cycle retracting device, solves existing apparatus structure complexity, and cost is high, it is impossible to the problem of gaseous tetrahydrofuran is recovered as into liquid.Supervisor（27）Entrance is connected with high pure nitrogen scavenging conduit (12) or tetrahydrofuran mixture pipe, the left end of four-way is connected through the 2nd valve (14), the 1st check valve (26) with vacuum glove box (1) or common vessel, the right-hand member of four-way is connected through the 3rd valve (16) with one end of circulating pump (2), it is connected through the 4th valve (17), the 5th valve (18) with the other end of circulating pump (2), the 4th valve (17) and circulating pump（2）The 5th valve (18) and the pressurized container with heating function（3）Connection, the lower end of four-way is connected with the 1st threeway upper end, and the left end of the 1st threeway is through the 6th valve（28）With vavuum pump（10）The 1st port connection, vavuum pump（10）The valve of the 2nd port the 7th（15）With tail gas bleeder pipe（11）Connection, the valve of lower end the 8th of the 1st threeway（30）It is connected with the 2nd threeway upper end.
Description
Technical field：
The utility model is relevant with tetrahydrofuran retracting device.
Background technology：
Existing tetrahydrofuran retracting device uses infiltrating and vaporizing membrane separating and reclaiming device, distillation recovery device.Wherein, ooze
Vaporization UF membrane is reclaimed thoroughly, is divided into organic pervaporation membrane, inorganic infiltrating and vaporizing membrane by material.Inorganic molecule sieves infiltrating and vaporizing membrane
Using molecular sieve as film material, the separation between different component is realized using its regular duct.NaA types inorganic molecule sieve oozes
Thoroughly vaporization film be NaA types sieve particle on tubular ceramic porous supporting body, by crystal increase (growth) formed one layer tightly
Closely packed film layer, aperture is about 4.2A, and most of organic matters are less than more than the kinetic diameter (~2.9A) of hydrone
Molecular diameter, good selective activization is shown to hydrone；On the other hand, the high aluminium content (Si/Al in framework of molecular sieve
=1) making it have extremely strong hydrophily so that NaA types inorganic molecule sieve infiltrating and vaporizing membrane is particularly suitable for use in dehydration of organic solvent.
In inorganic infiltrating and vaporizing membrane dehydration, membrane module feed side is entered after aqueous mixture is preheated, and per-meate side is used and taken out
Vacuum mode maintains an environment under low pressure.In feed side, hydrone Preferential adsorption is in film surface, and in film both sides, steam partial pressure is poor
Film is passed through under promotion, and vapor is vaporizated into film per-meate side.After lock out operation, film charging side outlet obtains anhydrous production
Product, and per-meate side component it is condensed after go wastewater treatment.
And second of distillation recovery device, conventional distillation recovery device and hypergravity distilling apparatus is divided into again.Conventional
Relatively good understanding is distilled to recover, and hypergravity is distilled to recover, the rotor rotated by one or more high speeds is constituted, and gas-liquid is with inverse
Rotor is flowed through to baffling mode, contact mass transfer is carried out, hypergravity tetrahydrofuran solvent reclaimer height 1.2 meters high is only suitable
In conventional rectification tower height degree 15 meters high.Existing tetrahydrofuran retracting device weak point is as follows：
How the two tetrahydrofuran solution only taken into account under liquid condition removes oxide and water and purifies back
The method of receipts；Without considering how gaseous tetrahydrofuran to be recovered as liquid condition.Secondly, although the two is in method
Emphasize particularly on different fields, but implement in actual equipment and still mutually mix, that is to say, that be also required to take using the equipment of infiltration technology
With distillation module, using the equipment of distillation technique in order to which purification degree is more preferable, it is also desirable to there is osmosis module.3rd, the two can not
Solve gaseous state tetrahydrofuran and other inert gases（Such as nitrogen, argon gas）Problem is reclaimed in the purification of gaseous mixture.
Utility model content：
The purpose of this utility model is to provide a kind of simple in construction, and cost is low, gaseous tetrahydrofuran can be recovered as liquid
The tetrahydrofuran gas-liquid cycle retracting device of state state.
What the utility model was realized in：
It is connected below supervisor's entrance through the 1st valve 13 with four-way upper end, 27 entrances of supervisor and high pure nitrogen scavenging conduit 12 or four
Hydrogen furans mixture pipe is connected, and the left end of four-way connects through the 2nd valve 14, the 1st check valve 26 and vacuum glove box 1 or common vessel
Connect, the right-hand member of four-way is connected through the 3rd valve 16 with one end of all-metal diaphragm circulating pump 2, through the 4th valve 17, the 5th valve 18 and all-metal
The other end connection of diaphragm circulating pump 2, the 4th valve 17 and diaphragm circulating pump 2 are connected with the pressurized container 3 with heating function, four-way
Lower end be connected with the 1st threeway upper end, the left end of the 1st threeway is connected through the 6th valve 28 with the 1st port of vavuum pump 10, vavuum pump
10 valve 15 of the 2nd port the 7th is connected with tail gas bleeder pipe 11, and the valve 30 of lower end the 8th of the 1st threeway and the 2nd threeway upper end connect
Connect, the 2nd threeway left end is connected through the 9th valve 23 with the nitrogen buffer container 8 with heating function, right-hand member is through the 10th valve 22 and heat exchange
The cooling cylinder connection of device, the cooling cylinder of heat exchanger are connected with pressurized container 3, have heat transferring medium to follow in the cooling cylinder of heat exchanger
Endless tube, nitrogen buffer container 8 is through the voltage-stablizer 9 with heating function, the 11st valve 24, the 2nd check valve 25 and vacuum glove box 1 or general
Logical container connection, the cooling cylinder of heat exchanger is connected by valve with liquid tetrahydrofuran recycling can 7.
Described heat exchanger for series connection the 1st, 2,3 heat exchangers the 4,5,6, the 1st, 2, the cooling cylinders point of 3 heat exchangers
It is not connected by the 12nd, 13,14 valves 19,20,21 with liquid tetrahydrofuran recycling can 7.
The utility model has the following advantages：
1st, can be by gaseous tetrahydrofuran, and the inert gas not reacted with it（Such as nitrogen, argon gas）Mixing
Gas, safe is recovered in container, forms the liquid solution that can be reused；
2nd, other inert gases in tetrahydrofuran gaseous mixture can be separated, and resets into certain purity；
3rd, energy circulation and stress, multi-cycle separation so that reclaim in separation process, the isolation of strict guarantee and air, prevent to appoint
The possibility of what leakage, reduces dangerous hidden danger.
Brief description of the drawings：
Fig. 1 is the utility model structure chart.
Embodiment：
It is connected below supervisor's entrance through the 1st valve 13 with four-way upper end, 27 entrances of supervisor and high pure nitrogen scavenging conduit 12 or four
Hydrogen furans mixture pipe is connected, and the left end of four-way connects through the 2nd valve 14, the 1st check valve 26 and vacuum glove box 1 or common vessel
Connect, the right-hand member of four-way is connected through the 3rd valve 16 with one end of all-metal diaphragm circulating pump 2, through the 4th valve 17, the 5th valve 18 and all-metal
The other end connection of diaphragm circulating pump 2, the 4th valve 17 and diaphragm circulating pump 2 are connected with the pressurized container 3 with heating function, four-way
Lower end be connected with the 1st threeway upper end, the left end of the 1st threeway is connected through the 6th valve 28 with the 1st port of vavuum pump 10, vavuum pump
10 valve 15 of the 2nd port the 7th is connected with tail gas bleeder pipe 11, and the valve 30 of lower end the 8th of the 1st threeway and the 2nd threeway upper end connect
Connect, the 2nd threeway left end is connected through the 9th valve 23 with the nitrogen buffer container 8 with heating function, right-hand member is through the 10th valve 22 and heat exchange
The cooling cylinder connection of device, the cooling cylinder of heat exchanger are connected with pressurized container 3, have heat transferring medium to follow in the cooling cylinder of heat exchanger
Endless tube, nitrogen buffer container 8 is through the voltage-stablizer 9 with heating function, the 11st valve 24, the 2nd check valve 25 and vacuum glove box 1 or general
Logical container connection, the cooling cylinder of heat exchanger is connected by valve with liquid tetrahydrofuran recycling can 7.
Described heat exchanger for series connection the 1st, 2,3 heat exchangers the 4,5,6, the 1st, 2, the cooling cylinders point of 3 heat exchangers
It is not connected by the 12nd, 13,14 valves 19,20,21 with liquid tetrahydrofuran recycling can 7.
Operation principle of the present utility model is as follows：
1st, inlet valve 26, the terminal valve 14,25 of vacuum glove box 1 of vavuum pump 10 and vavuum pump are closed；
2nd, from supervisor's input high pure nitrogen of entrance 12, other each valves are started（Including recycling can 7 and heat exchanger 4,5,
Valve between 6）And circulating pump, allow nitrogen in circulation line as far as possible be filled to certain pressure, now, two 500L's
Pressurized container 3, nitrogen buffer container 8 pressure should be similar；
3rd, after the pressure in whole circulation reaches certain value（It is settable）, close the valve 13 of nitrogen inlet, 10 points of pressurize
Clock（It is settable）Afterwards, vavuum pump 10, vacuum pump inlet valve 26 are successively opened（Note can not while open, centre will between every few seconds
Clock）, it is evacuated to certain vacuum（It is settable）；
4th, reach after certain vacuum degree, vacuum pump inlet check valve 26, vavuum pump 10 are successively closed again（Noting can not be same
When, centre will be spaced several seconds）, pressurize N minutes（It is settable）；
5th, again from step（2）-（4）It is repeated twice so that empty the composition of oxygen in the pipeline of cyclic permutation as far as possible；
6th, third round vacuum is extracted into certain numerical value, is shut off vacuum pump inlet check valve 26, vavuum pump 10, no longer squeezes into height
Pure nitrogen gas.Opening valve 13, the gateway valve 14,24 of vacuum glove box 1, allow tetrahydrofuran gaseous mixture from supervisor entrance feed line.
After flowing into 30 seconds（It is settable）, shutoff valve 13, each valve in open the circulation pump 2 and pipeline；
7th, pressurized container 3, the heated for controlling temperature system of nitrogen buffer container 8 are opened, allows it to be to slowly warm up to certain temperature
（It is settable）；Now, EGR starts in normal operation, running, at any time monitoring temperature, the timely data of pressure；
8th, the ultrasonic level gage of recycling can 7 is opened, the liquid level of recycling can is monitored, the liquid level of recycling can 7 reaches certain value, is closed
Valve closing 19,20,21, changes recycling can 7.
Vacuum glove box 1 is the tetrahydrofuran gaseous mixture source of whole device, is commercial goods.After valve 13 is closed, band
The tetrahydrofuran gaseous mixture for having certain temperature is discharged from vacuum glove box 1, and vacuum glove box 1 can also be replaced with common vessel.
Claims (2)
1. tetrahydrofuran gas-liquid cycle retracting device, it is characterised in that through the 1st valve below supervisor's entrance（13）Connect with four-way upper end
Connect, be responsible for（27）Entrance is connected with high pure nitrogen scavenging conduit (12) or tetrahydrofuran mixture pipe, and the left end of four-way is through the 2nd valve
(14), the 1st check valve (26) is connected with vacuum glove box (1) or common vessel, and the right-hand member of four-way is through the 3rd valve (16) and circulating pump
(2) one end connection, is connected, the 4th valve (17) and circulating pump through the 4th valve (17), the 5th valve (18) with the other end of circulating pump (2)
（2）The 5th valve (18) and the pressurized container with heating function（3）Connection, the lower end of four-way is connected with the 1st threeway upper end, and the 1st three
Logical left end is through the 6th valve（28）With vavuum pump（10）The 1st port connection, vavuum pump（10）The valve of the 2nd port the 7th（15）With
Tail gas bleeder pipe（11）Connection, the valve of lower end the 8th of the 1st threeway（30）It is connected with the 2nd threeway upper end, the 2nd threeway left end is through the 9th
Valve（23）With the nitrogen buffer container with heating function（8）Connection, cooling cylinder of the right-hand member through the 10th valve (22) and heat exchanger connects
Connect, the cooling cylinder of heat exchanger is connected with pressurized container (3), there is heat transferring medium circulation pipe, nitrogen in the cooling cylinder of heat exchanger
Buffer container (8) through the voltage-stablizer (9) with heating function, the 11st valve (24), the 2nd check valve (25) and vacuum glove box (1) or
Common vessel is connected, and the cooling cylinder of heat exchanger is connected by valve with liquid tetrahydrofuran recycling can (7).
2. tetrahydrofuran gas-liquid cycle retracting device according to claim 1, it is characterised in that described heat exchanger is
Series connection the 1st, 2,3 heat exchangers (4,5,6), the 1st, 2, the cooling cylinders of 3 heat exchangers respectively by the 12nd, 13,14 valves (19,
20th, 21) it is connected with liquid tetrahydrofuran recycling can (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720163875.2U CN206499898U (en) | 2017-02-23 | 2017-02-23 | Tetrahydrofuran gas-liquid cycle retracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720163875.2U CN206499898U (en) | 2017-02-23 | 2017-02-23 | Tetrahydrofuran gas-liquid cycle retracting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206499898U true CN206499898U (en) | 2017-09-19 |
Family
ID=59842189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720163875.2U Expired - Fee Related CN206499898U (en) | 2017-02-23 | 2017-02-23 | Tetrahydrofuran gas-liquid cycle retracting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206499898U (en) |
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2017
- 2017-02-23 CN CN201720163875.2U patent/CN206499898U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| 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: 20170919 Termination date: 20200223 |