CN102836564A - Condensation and adsorption-combined organic solvent recovering device - Google Patents
Condensation and adsorption-combined organic solvent recovering device Download PDFInfo
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- CN102836564A CN102836564A CN2012103160959A CN201210316095A CN102836564A CN 102836564 A CN102836564 A CN 102836564A CN 2012103160959 A CN2012103160959 A CN 2012103160959A CN 201210316095 A CN201210316095 A CN 201210316095A CN 102836564 A CN102836564 A CN 102836564A
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Abstract
The invention discloses a condensation and adsorption-combined organic solvent recovering device comprising a pressure conversion device, a condensation recovering device, a flowmeter, an adsorption recovering device and an absorption tank which are sequentially connected by using a rubber pipe. By combining a condensation method and an adsorption method in the condensation and adsorption-combined organic solvent recovering device, the recovery effect of an organic solvent is improved, and the recovery efficiency is up to above 90%; the condensation temperature of a condensation device is raised, and the purposes of energy saving, equipment miniaturization and easiness for maintenance are achieved; and with the pressure conversion device, the condensation and adsorption-combined organic solvent recovering device can recover the organic solvent under a vacuum condition.
Description
Technical field
The invention belongs to organic solvent and reclaim the field, the organic solvent retracting device of particularly a kind of condensation and absorption coupling.
Background technology
In chemical process; Organic solvent often is used in operations such as the dissolving of chemical products, refining, purification; And in vacuum drying, decompression distillation, plasticizing forming and suction filtration operation, directly be discharged in the air; Cause serious environmental to pollute and the wasting of resources, also increased potential safety hazard simultaneously.With an organic solvent nearly 2,600,000 tons altogether in 1996 in China, along with developing rapidly of China's chemical industry, the use amount of organic solvent is just presenting the trend that increases year by year.Therefore, solvent recovery unit is studied, improved recovering effect, can in the production of chemical industry, use, have wide practical value.
The method that reclaims organic solvent at present mainly contains condensation method, absorption method, absorption process and membrane separation process.Wherein condensation method and absorption method be because it is simple to operate, equipment and technology is less demanding be used more.Condensation method is suitable for concentration and is higher than 5000ppm, and boiling point is higher than the organic gas of 310K., concentration use absorption method to reclaim organic solvent when being lower than 5000ppm.
This patent enlarges the scope of application of this device through the technology of condensation with the absorption coupling, improves the rate of recovery and the energy consumption that reduces recovery system.
Summary of the invention
The object of the present invention is to provide a kind of can enlarging application range, improve the rate of recovery and the organic solvent retracting device of the condensation that reduces the recovery system energy consumption with the absorption coupling.
The technical solution that realizes the object of the invention is:
The organic solvent retracting device of a kind of condensation and absorption coupling comprises the pressure conversion device, condensing and recycling device and the absorbing recovery device that use sebific duct to connect successively.
The present invention compared with prior art, its remarkable advantage:
(1) through coupling condensation method and absorption method, improved the Recovery of Organic Solvent effect, organic efficiency is more than 90%;
(2), improved the condensation temperature of condensing unit, the purpose that reaches energy-conservation, device miniaturization and be easy to safeguard through coupling condensation method and absorption method;
(3) working pressure conversion equipment can reclaim the organic solvent under the vacuum condition.
Below in conjunction with accompanying drawing the present invention is described in further detail.
Description of drawings
Fig. 1 is the organic solvent retracting device structural representation of condensation of the present invention and absorption coupling.
The specific embodiment
The objective of the invention is to realize like this: in vacuum filtration and vacuum drying operation; Through pressure conversion hysteria device, the organic solvent in the subnormal ambient is collected, organic solvent at first changes barotropic state into; Be transported in the condensate recovery system; And then the gas that will come out from condensate recovery system, through adsorbent equipment absorption, thereby accomplish Recovery of Organic Solvent.Gas with the adsorbent equipment outlet is passed in the adsorption tank simultaneously; Absorb remaining a small amount of organic solvent; And increase an organic solvent alarm at the adsorption tank place; Just send alarm signal in case concentration transfinites, be convenient to the loadings that we in time adjust adsorbent in condensation temperature and the adsorbent equipment of condenser system.
The condensation temperature that reduces condensing unit helps improving Recovery of Organic Solvent efficient with raising pressure.
In order continuously to reclaim organic solvent, said adsorbent equipment is absorber of parallel connection at least again, makes each absorber alternately absorption and desorption.
In order to improve the effect of absorption, need to select corresponding active carbon filling to the kind of organic solvent.The adsorption effect that improves active carbon can reduce the condensation temperature of condensing unit, reaches effect energy-conservation and protection equipment.
In order to reach environmental protection and purpose of safety, need organic solvent siren of installation in the tail gas exit.
Specify the details and the working condition of the concrete device that proposes according to the present invention below in conjunction with Fig. 1.
The organic solvent retracting device of a kind of condensation and absorption coupling comprises the pressure conversion device 1, condensing and recycling device 2 and the absorbing recovery device 4 that use sebific duct to connect successively; Described absorbing recovery device 4 links to each other with absorption cell 5 through sebific duct; Between described condensing and recycling device 2 and the absorbing recovery device 4 flowmeter 3 is installed; Described pressure conversion device 1 is meant with the dry type scroll vacuum pump and is the main body, the auxiliary pressure conversion device that Pressure gauge, check valve and tube connector are installed; Described absorbing recovery device 4 comprises at least one absorber, and absorber 4 loading heights are adjustable; Organic solvent strength alarm 6 is installed in the described absorption cell 5; Said condensing and recycling device 2 is meant the freezing type drier that uses refrigerating medium, and wherein the heat exchanger of freezing type drier adopts the compound shell side structure of full copper bend pipe; Described refrigerating medium is a glycol water; Described freezing type drier has a plurality of leakage fluid drams.
This retracting device comprises pressure conversion device 1, condensing and recycling device 2 and absorbing recovery device 4, and organic solvent is under the vacuumizing environment; Strong volatilization can take place; Organic vapor along direction shown in the arrow moves through pressure conversion device 1, forms the organic vapor of malleation; Then organic solvent steam is transported in the condensing and recycling device 2 and reclaims, the uncooled organic solvent of part is passed in the absorbing recovery device 4; The tail gas that contains a small amount of organic gas at last is passed in the absorption cell 5 and absorbs processing; Wherein the organic solvent steam flow is by flowmeter 3 monitoring.Condensation reaches more than 90% with the expection rate of recovery of absorption combined apparatus.
The temperature of condensing and recycling device 2 can be regulated, from-20 ℃--8 ℃, and the organic solvent character decision of reclaiming as required.Condensing and recycling device 2 adjustable in pressure, maximum pressure can reach the maximum output pressure of pressure conversion device.
The height of absorbing recovery device 4 can be regulated according to the active carbon loadings, and the changeable desorption absorption of a plurality of absorbers is arranged to keep continued operation.
Regulate the loadings of adsorbent in operating temperature and the absorbing recovery device 4 of cooling medium in the condensing and recycling device 2 according to the data of organic solvent concentration alarm 6.
Select these organic reagents commonly used of acetone, ethyl acetate and ethanol as test solvent, table 1 is their fundamental property.
Table 1 is an organic solvent character commonly used
| Title | Relative molecular weight | Boiling point (℃) | Thermal conductivity factor (W/ (m. ℃)) |
| Acetone | 58.08 | 56 | 0.14 |
| Ethanol | 46.07 | 78 | 0.22 |
| Ethyl acetate | 88.11 | 77 | 0.17 |
Embodiment 1:
The organic solvent retracting device of a kind of condensation and absorption coupling comprises the pressure conversion device 1, condensing and recycling device 2, flowmeter 3, absorbing recovery device 4 and the absorption cell 5 that use sebific duct to connect successively, and organic solvent strength alarm 6 is installed in the absorption cell 5; Wherein, pressure conversion device 1 is meant with the dry type scroll vacuum pump and is the main body, the auxiliary pressure conversion device that Pressure gauge, check valve and tube connector are installed; Said condensing and recycling device 2 is meant and uses the freezing type drier of glycol water as refrigerating medium, and freezing type drier has a leakage fluid dram, and heat exchanger adopts the compound shell side structure of full copper bend pipe; Absorbing recovery device 4 uses an absorber.
Measure 500ml acetone and pour in the bottle,suction, open the dry type scroll vacuum pump, the condensing agent temperature of condensing and recycling device is set at-18 ℃, and operating pressure is 0.06Mpa; Filling active carbon 1000g in the adsorbent equipment, loading height is 40cm; Gas flow is 27L/min.Close the dry type scroll vacuum pump after 40 minutes; Open the outlet valve of condensing and recycling device, collect condensate recovery liquid and obtain 380.5ml, reclaim the active carbon of adsorbent equipment; Weighing absorption obtains 74g acetone; Calculating the condensing and recycling rate is 76.1%, and the absorption rate of recovery is 18.5%, and overall recovery is 94.6%.
Embodiment 2:
The organic solvent retracting device of a kind of condensation and absorption coupling comprises the pressure conversion device 1, condensing and recycling device 2, flowmeter 3, absorbing recovery device 4 and the absorption cell 5 that use sebific duct to connect successively, and organic solvent strength alarm 6 is installed in the absorption cell 5; Wherein, pressure conversion device 1 is meant with the dry type scroll vacuum pump and is the main body, the auxiliary pressure conversion device that Pressure gauge, check valve and tube connector are installed; Said condensing and recycling device 2 is meant and uses the freezing type drier of glycol water as refrigerating medium, and freezing type drier has two leakage fluid drams, and heat exchanger adopts the compound shell side structure of full copper bend pipe; Absorbing recovery device 4 uses an absorber.
Measure 500ml acetone and pour in the bottle,suction, open the dry type scroll vacuum pump, the condensing agent temperature of condensing and recycling device is set at-15 ℃, and operating pressure is 0.06Mpa; Filling active carbon 1000g in the adsorbent equipment, loading height is 40cm; Gas flow is 27L/min.Close the dry type scroll vacuum pump after 40 minutes, open the outlet valve of condensing and recycling device, collect condensate recovery liquid and obtain 360ml; Reclaim the active carbon of adsorbent equipment, weighing absorption obtains 88g acetone, and calculating the condensing and recycling rate is 72.1%; The absorption rate of recovery is 22.0%, and overall recovery is 94.1%.
Embodiment 3:
The organic solvent retracting device of a kind of condensation and absorption coupling comprises the pressure conversion device 1, condensing and recycling device 2, flowmeter 3, absorbing recovery device 4 and the absorption cell 5 that use sebific duct to connect successively, and organic solvent strength alarm 6 is installed in the absorption cell 5; Wherein, pressure conversion device 1 is meant with the dry type scroll vacuum pump and is the main body, the auxiliary pressure conversion device that Pressure gauge, check valve and tube connector are installed; Said condensing and recycling device 2 is meant and uses the freezing type drier of glycol water as refrigerating medium, and freezing type drier has two leakage fluid drams, and heat exchanger adopts the compound shell side structure of full copper bend pipe; Absorbing recovery device 4 uses two absorbers.
Measure 500ml acetone and pour in the bottle,suction, open the dry type scroll vacuum pump, the condensing agent temperature of condensing and recycling device is set at-8 ℃, and operating pressure is 0.06Mpa; Filling active carbon 1000g in the adsorbent equipment, loading height is 40cm; Gas flow is 27L/min.Close the dry type scroll vacuum pump after 40 minutes, open the outlet valve of condensing and recycling device, collect condensate recovery liquid and obtain 330ml; Reclaim the active carbon of adsorbent equipment, weighing absorption obtains 112g acetone, and calculating the condensing and recycling rate is 66.0%; The absorption rate of recovery is 28.0%, and overall recovery is 94.0%.
Embodiment 4:
The organic solvent retracting device of a kind of condensation and absorption coupling comprises the pressure conversion device 1, condensing and recycling device 2, flowmeter 3, absorbing recovery device 4 and the absorption cell 5 that use sebific duct to connect successively, and organic solvent strength alarm 6 is installed in the absorption cell 5; Wherein, pressure conversion device 1 is meant with the dry type scroll vacuum pump and is the main body, the auxiliary pressure conversion device that Pressure gauge, check valve and tube connector are installed; Said condensing and recycling device 2 is meant and uses the freezing type drier of the CaCl2 aqueous solution as refrigerating medium, and freezing type drier has three leakage fluid drams, and heat exchanger adopts the compound shell side structure of full copper bend pipe; Absorbing recovery device 4 uses two absorbers.
Measure 500ml acetone and pour in the bottle,suction, open the dry type scroll vacuum pump, the condensing agent temperature of condensing and recycling device is set at-15 ℃, and operating pressure is 0.06Mpa; Filling active carbon 1000g in the adsorbent equipment, loading height is 40cm; Gas flow is 27L/min.Close the dry type scroll vacuum pump after 40 minutes, bottle,suction surplus solution 181ml opens the outlet valve of condensing and recycling device; Collect condensate recovery liquid and obtain 185ml; Reclaim the active carbon of adsorbent equipment, weighing absorption obtains 92.5g acetone, and calculating the condensing and recycling rate is 58.0%; The absorption rate of recovery is 36.2%, and overall recovery is 94.2%.
Embodiment 5:
The organic solvent retracting device of a kind of condensation and absorption coupling comprises the pressure conversion device 1, condensing and recycling device 2, flowmeter 3, absorbing recovery device 4 and the absorption cell 5 that use sebific duct to connect successively, and organic solvent strength alarm 6 is installed in the absorption cell 5; Wherein, pressure conversion device 1 is meant with the dry type scroll vacuum pump and is the main body, the auxiliary pressure conversion device that Pressure gauge, check valve and tube connector are installed; Said condensing and recycling device 2 is meant and uses the freezing type drier of aqueous solution of propylene glycol as refrigerating medium, and freezing type drier has two leakage fluid drams, and heat exchanger adopts the compound shell side structure of full copper bend pipe; Absorbing recovery device 4 uses two absorbers.
Measure 500ml acetone and pour in the bottle,suction, open the dry type scroll vacuum pump, the condensing agent temperature of condensing and recycling device is set at-15 ℃, and operating pressure is 0.06Mpa; Filling active carbon 1000g in the adsorbent equipment, loading height is 40cm; Gas flow is 27L/min.Close the dry type scroll vacuum pump after 40 minutes, bottle,suction surplus solution 302ml opens the outlet valve of condensing and recycling device; Collect condensate recovery liquid and obtain 93ml; Reclaim the active carbon of adsorbent equipment, weighing absorption obtains 75g acetone, and calculating the condensing and recycling rate is 46.9%; The absorption rate of recovery is 47.2%, and overall recovery is 94.1%.
Embodiment 6:
The organic solvent retracting device of a kind of condensation and absorption coupling comprises the pressure conversion device 1, condensing and recycling device 2, flowmeter 3, absorbing recovery device 4 and the absorption cell 5 that use sebific duct to connect successively, and organic solvent strength alarm 6 is installed in the absorption cell 5; Wherein, pressure conversion device 1 is meant with the dry type scroll vacuum pump and is the main body, the auxiliary pressure conversion device that Pressure gauge, check valve and tube connector are installed; Said condensing and recycling device 2 is meant and uses the freezing type drier of aqueous solution of propylene glycol as refrigerating medium, and freezing type drier has four leakage fluid drams, and heat exchanger adopts the compound shell side structure of full copper bend pipe; Absorbing recovery device 4 uses two absorbers.
Measure 500ml ethyl acetate and pour in the bottle,suction, open the dry type scroll vacuum pump, the condensing agent temperature of condensing and recycling device is set at-18 ℃, and operating pressure is 0.08Mpa; Filling active carbon 500g in the adsorbent equipment, loading height is 20cm; Gas flow is 26L/min.Close the dry type scroll vacuum pump after 40 minutes; Open the outlet valve of condensing and recycling device, collect condensate recovery liquid and obtain 422ml, reclaim the active carbon of adsorbent equipment; Weighing absorption obtains 43g ethyl acetate; Calculating the condensing and recycling rate is 84.3%, and the absorption rate of recovery is 9.4%, and overall recovery is 93.7%.
Embodiment 7:
The organic solvent retracting device of a kind of condensation and absorption coupling comprises the pressure conversion device 1, condensing and recycling device 2, flowmeter 3, absorbing recovery device 4 and the absorption cell 5 that use sebific duct to connect successively, and organic solvent strength alarm 6 is installed in the absorption cell 5; Wherein, pressure conversion device 1 is meant with the dry type scroll vacuum pump and is the main body, the auxiliary pressure conversion device that Pressure gauge, check valve and tube connector are installed; Said condensing and recycling device 2 is meant and uses the freezing type drier of aqueous solution of propylene glycol as refrigerating medium, and freezing type drier has a leakage fluid dram, and heat exchanger adopts the compound shell side structure of full copper bend pipe; Absorbing recovery device 4 uses an absorber.
Measure 500ml ethyl acetate and pour in the bottle,suction, open the dry type scroll vacuum pump, the condensing agent temperature of condensing and recycling device is set at-8 ℃, and operating pressure is 0.08Mpa; Filling active carbon 600g in the adsorbent equipment, loading height is 24cm; Gas flow is 26L/min.Close the dry type scroll vacuum pump after 40 minutes; Open the outlet valve of condensing and recycling device, collect condensate recovery liquid and obtain 398ml, reclaim the active carbon of adsorbent equipment; Weighing absorption obtains 71g ethyl acetate; Calculating the condensing and recycling rate is 79.6%, and the absorption rate of recovery is 15.8%, and overall recovery is 95.4%.
Embodiment 8
The organic solvent retracting device of a kind of condensation and absorption coupling comprises the pressure conversion device 1, condensing and recycling device 2, flowmeter 3, absorbing recovery device 4 and the absorption cell 5 that use sebific duct to connect successively, and organic solvent strength alarm 6 is installed in the absorption cell 5; Wherein, pressure conversion device 1 is meant with the dry type scroll vacuum pump and is the main body, the auxiliary pressure conversion device that Pressure gauge, check valve and tube connector are installed; Said condensing and recycling device 2 is meant and uses the freezing type drier of aqueous solution of propylene glycol as refrigerating medium, and freezing type drier has three leakage fluid drams, and heat exchanger adopts the compound shell side structure of full copper bend pipe; Absorbing recovery device 4 uses three absorbers.
Measure 500ml ethyl acetate and pour in the bottle,suction, open the dry type scroll vacuum pump, the condensing agent temperature of condensing and recycling device is set at-15 ℃, and operating pressure is 0.08Mpa; Filling active carbon 500g in the adsorbent equipment, loading height is 20cm; Gas flow is 26L/min.Close the dry type scroll vacuum pump after 40 minutes, bottle,suction remains organic solution 78ml, opens the outlet valve of condensing and recycling device; Collect condensate recovery liquid and obtain 342ml; Reclaim the active carbon of adsorbent equipment, weighing absorption obtains 51g ethyl acetate, and calculating the condensing and recycling rate is 81.1%; The absorption rate of recovery is 13.4%, and overall recovery is 94.5%.
Embodiment 9
The organic solvent retracting device of a kind of condensation and absorption coupling comprises the pressure conversion device 1, condensing and recycling device 2, flowmeter 3, absorbing recovery device 4 and the absorption cell 5 that use sebific duct to connect successively, and organic solvent strength alarm 6 is installed in the absorption cell 5; Wherein, pressure conversion device 1 is meant with the dry type scroll vacuum pump and is the main body, the auxiliary pressure conversion device that Pressure gauge, check valve and tube connector are installed; Said condensing and recycling device 2 is meant and uses the freezing type drier of glycol water as refrigerating medium, and freezing type drier has two leakage fluid drams, and heat exchanger adopts the compound shell side structure of full copper bend pipe; Absorbing recovery device 4 uses four absorbers.
Measure 500ml ethyl acetate and pour in the bottle,suction, open the dry type scroll vacuum pump, the condensing agent temperature of condensing and recycling device is set at-15 ℃, and operating pressure is 0.08Mpa; Filling active carbon 500g in the adsorbent equipment, loading height is 20cm; Gas flow is 26L/min.Close the dry type scroll vacuum pump after 40 minutes, bottle,suction remains organic solution 244ml, opens the outlet valve of condensing and recycling device; Collect condensate recovery liquid and obtain 187ml; Reclaim the active carbon of adsorbent equipment, weighing absorption obtains 45g ethyl acetate, and calculating the condensing and recycling rate is 73.1%; The absorption rate of recovery is 22.0%, and overall recovery is 95.1%.
Embodiment 10
The organic solvent retracting device of a kind of condensation and absorption coupling comprises the pressure conversion device 1, condensing and recycling device 2, flowmeter 3, absorbing recovery device 4 and the absorption cell 5 that use sebific duct to connect successively, and organic solvent strength alarm 6 is installed in the absorption cell 5; Wherein, pressure conversion device 1 is meant with the dry type scroll vacuum pump and is the main body, the auxiliary pressure conversion device that Pressure gauge, check valve and tube connector are installed; Said condensing and recycling device 2 is meant and uses the freezing type drier of the CaCl2 aqueous solution as refrigerating medium, and freezing type drier has two leakage fluid drams, and heat exchanger adopts the compound shell side structure of full copper bend pipe; Absorbing recovery device 4 uses two absorbers.
Measure 500ml ethanol and pour in the bottle,suction, open the dry type scroll vacuum pump, the condensing agent temperature of condensing and recycling device is set at-15 ℃, and operating pressure is 0.08Mpa; Filling active carbon 500g in the adsorbent equipment, loading height is 20cm; Gas flow is 26L/min.Close the dry type scroll vacuum pump after 40 minutes, bottle,suction remains organic solution 156ml, opens the outlet valve of condensing and recycling device; Collect condensate recovery liquid and obtain 319ml; Reclaim the active carbon of adsorbent equipment, weighing absorption obtains 18g ethanol, and calculating the condensing and recycling rate is 92.7%; The absorption rate of recovery is 6.5%, and overall recovery is 99.2%.
Embodiment 11
The organic solvent retracting device of a kind of condensation and absorption coupling comprises the pressure conversion device 1, condensing and recycling device 2, flowmeter 3, absorbing recovery device 4 and the absorption cell 5 that use sebific duct to connect successively, and organic solvent strength alarm 6 is installed in the absorption cell 5; Wherein, pressure conversion device 1 is meant with the dry type scroll vacuum pump and is the main body, the auxiliary pressure conversion device that Pressure gauge, check valve and tube connector are installed; Said condensing and recycling device 2 is meant and uses the freezing type drier of glycol water as refrigerating medium, and freezing type drier has two leakage fluid drams, and heat exchanger adopts the compound shell side structure of full copper bend pipe; Absorbing recovery device 4 uses two absorbers.
Measure 500ml ethanol and pour in the bottle,suction, open the dry type scroll vacuum pump, the condensing agent temperature of condensing and recycling device is set at-15 ℃, and operating pressure is 0.08Mpa; Filling active carbon 500g in the adsorbent equipment, loading height is 20cm; Gas flow is 26L/min.Close the dry type scroll vacuum pump after 40 minutes, bottle,suction remains organic solution 304ml, opens the outlet valve of condensing and recycling device; Collect condensate recovery liquid and obtain 183ml; Reclaim the active carbon of adsorbent equipment, weighing absorption obtains 9g ethanol, and calculating the condensing and recycling rate is 93.4%; The absorption rate of recovery is 5.7%, and overall recovery is 99.1%.
Above instance is through the test to acetone (56 ℃ of boiling points), ethyl acetate (77 ℃ of boiling points) and ethanol (78 ℃ of boiling points); Result of the test shows; Use condensation-absorption coupling method that the organic solvent of different boiling ranges is had good recovering effect, overall recovery reaches more than 94%.Use the rate of recovery of condensation method to have only 70%～80% separately, the rate of recovery can significantly be brought up to more than 94% behind the increase adsorbent equipment.
The present invention has good recovering effect to the organic solvent that relates to vacuum desolventizing process in the Chemical Manufacture unit operations, like the organic solvent of operations such as vacuum filtration, vacuum desolventizing, vacuum drying generation.Produce 1 ton of nitrocotton and need ethanol 500～600kg, ether 400～450kg.The price of ethanol is at 6000～9000/ tons, 7000～10000/ tons of ether, if reclaim 90%, and cost-saved about 5000 yuan of nitrocotton then per ton.
Novel structure of the present invention is simple, equipment investment is few, and is energy-conservation, operating cost is low, easy operating and automation; Safety, high to the organic gas rate of recovery, the expection rate of recovery is more than 90%; Can not produce secondary pollution, and the organic solvent that reclaims can reuse, can effectively reduce production costs.The organic solvent that the present invention can be applied to vacuum desolventizing technology reclaims, and has very wide range of application.
Claims (9)
1. the organic solvent retracting device of condensation and absorption coupling is characterized in that: comprise the pressure conversion device (1), condensing and recycling device (2) and the absorbing recovery device (4) that use sebific duct to connect successively.
2. the organic solvent retracting device of a kind of condensation according to claim 1 and absorption coupling is characterized in that: described absorbing recovery device (4) links to each other with absorption cell (5) through sebific duct.
3. the organic solvent retracting device of a kind of condensation according to claim 1 and absorption coupling is characterized in that: between described condensing and recycling device (2) and the absorbing recovery device (4) flowmeter (3) is installed.
4. the organic solvent retracting device of a kind of condensation according to claim 1 and absorption coupling; It is characterized in that: described pressure conversion device (1) is meant with the dry type scroll vacuum pump and is the main body, the auxiliary pressure conversion device that Pressure gauge, check valve and tube connector are installed.
5. the organic solvent retracting device of a kind of condensation according to claim 1 and absorption coupling, it is characterized in that: absorbing recovery device (4) comprises at least one absorber, and absorber (4) loading height is adjustable.
6. the organic solvent retracting device of a kind of condensation according to claim 1 and absorption coupling is characterized in that: organic solvent strength alarm (6) is installed in the described absorption cell (5).
7. the organic solvent retracting device of a kind of condensation according to claim 1 and absorption coupling; It is characterized in that: said condensing and recycling device (2) is meant the freezing type drier that uses refrigerating medium, and wherein the heat exchanger of freezing type drier adopts the compound shell side structure of full copper bend pipe.
8. the organic solvent retracting device of a kind of condensation according to claim 7 and absorption coupling, it is characterized in that: described refrigerating medium is a glycol water.
9. the organic solvent retracting device of a kind of condensation according to claim 7 and absorption coupling, it is characterized in that: described freezing type drier has a plurality of leakage fluid drams.
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| CN105561622A (en) * | 2016-02-17 | 2016-05-11 | 广东环葆嘉节能科技有限公司 | Condensation treatment method of organic waste gas |
| CN105607487A (en) * | 2016-03-11 | 2016-05-25 | 湖北新阳特种纤维股份有限公司 | Solvent recovery cost discharge control device, and method thereof |
| CN106334408A (en) * | 2016-05-03 | 2017-01-18 | 宁波工程学院 | Recovery apparatus and technology of slurry kettle exhaust gas in PET production process |
| CN113413629A (en) * | 2021-07-01 | 2021-09-21 | 合肥工业大学 | Organic solvent separation device and system method for flat panel display based on condensation method |
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Application publication date: 20121226 |