CN2061935U - Freezing recovering device for vent of exposition-proof solvent - Google Patents
Freezing recovering device for vent of exposition-proof solvent Download PDFInfo
- Publication number
- CN2061935U CN2061935U CN 89220770 CN89220770U CN2061935U CN 2061935 U CN2061935 U CN 2061935U CN 89220770 CN89220770 CN 89220770 CN 89220770 U CN89220770 U CN 89220770U CN 2061935 U CN2061935 U CN 2061935U
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- freezing
- tail gas
- explosion
- solvent
- proof
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Abstract
The utility model relates to a freezing device for recovering the tail gas of explosion protection solvent, which is special equipment used for recovering the leaching solvent (n-hexane) of 6# soybean in the chemical industry of grease. The utility model is mainly composed of a cylindrical recovery tower and a freezing and compressing evaporator. An explosion protection electric machine is controlled synchronously with a pressure protector, a pressure gauge, an electromagnetic valve, an automatic temperature control gauge with the upper and the lower limit of electric contacts, etc. Simultaneously, an inlet valve and an outlet valve for spare cooling water are arranged on the recovery tower. The utility model, therefore, has the advantages of good use effect, good safety performance, high solvent recovery rate, less discharge capacity of waste gas, long service life and convenient maintenance.
Description
The utility model is to be used for a kind of special retrieving arrangement that the oil and fat chemical industry reclaims solvent tail gas or various hexanes.
In the past, solvent was reclaimed in the leaching workshop of oil and fat chemical enterprise---and No. 6 soybean is leached solvent (normal hexane) tail gas, generally be to play mixing oil or reclaim with the method for tap water spray with toothed gear pump, but this method is not only dangerous, but also waste energy.Another kind method is to reclaim with straight cooling type, and this method reclaims, and equipment can not discontinuous operation, mechanical wear is big.The contriver is in order to provide a kind of consumption low, the freezing recovery tower of a kind of solvent tail gas that organic efficiency is high, in November in this year to national applications patent, number of patent application is 89213969.2.But this maintenance of equipment is not too convenient, influences working efficiency.
The utility model has carried out new improvement at the weak point of above-mentioned recovery system, so that prolong the work-ing life of equipment, can in maintenance equipment can be moved as usual, has improved organic efficiency.
The utility model design is made up of columniform recovery tower, two monomers of freezing Compression Evaporation device.In the cylindrical recovery tower, two tube sheets are up and down arranged, connecting the stainless steel heat exchanger tube between two tube sheets, the solvent recuperation mouth is being adorned in the lower end, leaned to one side inlet valve and evacuation port.Freezing Compression Evaporation device is made up of refrigeration compressor and chilled brine evaporation tank.
Now in conjunction with the accompanying drawings the utility model is explained in detail.
Fig. 1 is the structural representation of recovery tower.
End socket 6-a, the 6-b at the two ends up and down of recovery tower connects the external diameter φ 400～273mm of tower body with reclaiming tower body 8 usefulness bolts.Welding one group of 20～35 diameter between tube sheet 7-a, the 7-b is that the axial stainless copper pipe of φ 32～20mm is formed exhaust gas heat exchanger 9.Standby cooling sea water outlet valve 3 and circulating brine return valve 4 in the upper end of reclaiming tower body 8 attaching of leaning to one side, and blow-down pipe 2 in the middle-end attaching, and circulating brine inlet valve 10 and standby cooling sea water inlet valve 11 are leaned to one side connecting in the lower end.Putting recovery mouth 1 at end socket 6-b.
Fig. 2 is the configuration diagram of freezing Compression Evaporation device.Between the fire proof motor 20 of freezing Compression Evaporation device and the refrigeration compressor 18 with synchronous toothed belt or with shaft joint 19 transmissions, make main, driven wheel is non-slip, does not produce spark.Pressure protector 21, high and low pressure table 17 is contained on the frame of condenser 25, and high-pressure manometer 17 is connected with pressure protector 21.When refrigeration compressor 18 superpressures,,, carry out synchronization control with fire proof motor 20 through the essential safe type pilot circuit by high-pressure manometer 17 and pressure protector 21.Strainer 23, magnetic valve 22 and expansion valve 16 are connected on the liquid pipe 26.By magnet valve 22 and motor 20 synchronization control, shut down the F that just makes the liquid pipe
12Can not flow through.Generating tube 13 is to make S shape with copper pipe φ a 16～19mm, a termination expansion valve 16, and the other end connects with explosion-proof noncorrosive pump 14.The salt water channel is in spreader plate 27 is fixed on chilled brine evaporation tank 12.The automatic temperature-controlled table 24 of electric contact bound is fixed on the housing of chilled brine evaporation tank 12, on be limited to-8 ℃, down be limited to-12 ℃.The saturated brine temperature is controlled at-8 °～-12 ℃ by 20 operations of its synchronization control motor.
The utility model embodiment: fire proof motor 20 makes refrigeration compressor work by synchronous toothed belt or shaft joint 19, makes the F of condenser 25
12Atomize to expansion valve 16, process expansion valve 16 through filter 23, explosion-proof solenoid valve 22 by liquid pipe 26, generating tube 13 refrigeration saturated brines have been arrived, salt solution is shunted circularly coolings by the salt water channel to spreader plate 27, deliver to circulating brine inlet valve 10 through explosion-proof noncorrosive pump 14 then, enter and reclaim in the tower body 8, cooling is delivered to refrigerated brine evaporation tank 12 from the solvent tail gas of tail gas import 5 once more from circulating brine return valve 4,15, continues to use.Through over-heat-exchanger 9, be cooled to liquid from the solvent of tail gas import 5 from top to bottom, reclaim through the solvent recuperation mouth.Also other gases of Sheng Xia minority are through blow-down pipe 2 emission quotas.If freezing Compression Evaporation device breaks down, shutdown maintenance then can utilize cooling sea water inlet valve 4 and outlet valve 3 natural water coolings, reaches the effect that continues recovery.
The utlity model has: safe and reliable to operation, the automaticity height, the work in every parameter can be controlled at better range, the organic efficiency height, service life is also longer. It is the special equipment of comparatively desirable tail gas solvent recovery.
Claims (4)
1, a kind of explosion-proof solvent tail gas freezing recovery device is made up of exhaust gas heat exchanger in cylindrical recovery tower and the tower (9) and freezing Compression Evaporation device.Freezing Compression Evaporation device is made up of refrigeration compressor (18) and chilled brine evaporation tank (12) two parts again.It is characterized in that: recovery tower (8) is equipped with standby cooling sea water outlet valve (4) and inlet valve (11); (12) have the salt water channel to spreader plate (27) in the refrigerated brine evaporation tank, and pressure protector (21) is connected with fire proof motor (20) by the essential safe type pilot circuit with the automatic temperature-controlled table of electric contact bound (24).
2, by the described a kind of explosion-proof solvent tail gas freezing recovery device of claim 1, it is characterized in that: stainless steel tube and tube sheet (7-a), (7-b) that exhaust gas heat exchanger (9) is φ 32～20mm by 20～35 axial diameters form.
3, by the described a kind of explosion-proof solvent tail gas freezing recovery device of claim 1, it is characterized in that: be between fire proof motor (20) and the refrigeration compressor (18) with synchronous toothed belt or shaft joint (19) transmission.
4, by the described a kind of explosion-proof solvent tail gas freezing recovery device of claim 1, it is characterized in that: be limited to-8 ℃ on the automatic temperature-controlled table of electric contact bound (24), be limited to-12 ℃ down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220770 CN2061935U (en) | 1989-12-06 | 1989-12-06 | Freezing recovering device for vent of exposition-proof solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220770 CN2061935U (en) | 1989-12-06 | 1989-12-06 | Freezing recovering device for vent of exposition-proof solvent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2061935U true CN2061935U (en) | 1990-09-12 |
Family
ID=4875378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89220770 Withdrawn CN2061935U (en) | 1989-12-06 | 1989-12-06 | Freezing recovering device for vent of exposition-proof solvent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2061935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536364A (en) * | 2014-12-03 | 2015-04-22 | 武汉旭日华科技发展有限公司 | Organic solvent recovery device with air inlet control and control method thereof |
-
1989
- 1989-12-06 CN CN 89220770 patent/CN2061935U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536364A (en) * | 2014-12-03 | 2015-04-22 | 武汉旭日华科技发展有限公司 | Organic solvent recovery device with air inlet control and control method thereof |
| CN104536364B (en) * | 2014-12-03 | 2017-05-10 | 武汉旭日华科技发展有限公司 | Organic solvent recovery system with air inlet control and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |