CN204656278U - The absorption type toluene recovery device that wood furniture industry is resolved with normal pressure - Google Patents
The absorption type toluene recovery device that wood furniture industry is resolved with normal pressure Download PDFInfo
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- CN204656278U CN204656278U CN201520325348.8U CN201520325348U CN204656278U CN 204656278 U CN204656278 U CN 204656278U CN 201520325348 U CN201520325348 U CN 201520325348U CN 204656278 U CN204656278 U CN 204656278U
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- centrifugal compressor
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Abstract
The utility model discloses the absorption type toluene recovery device that a kind of wood furniture industry normal pressure is resolved, comprise supercharging recovery passage, refrigerating circuit and toluene fluid reservoir; Supercharging recovery passage comprises the air inlet be linked in sequence by pipeline, semiclosed centrifugal compressor, air accumulator, adsorbent equipment, shell and tube evaporator and exhaust outlet; Refrigerating circuit comprises and becomes the screw type refrigerating compressor of closed circulation, water-cooled condenser, expansion valve and shell and tube evaporator by refrigerant tubing sequential communication.The utility model is larger for wood furniture industry usual toluene tolerance, and toluene atmospheric boiling point is 72 DEG C of various features such as grade, reenter adsorption tanks after being compressed by semiclosed centrifugal compressor by toluene gas to adsorb, desorption can complete at ambient pressure, the effect making to reach toluene-enriched need not as relying on vavuum pump in the prior art, and desorption efficiency significantly improves; Simultaneity factor cost and fault rate also decline to a great extent.
Description
Technical field
The utility model relates to a kind of gas concentration unit, is specifically related to a kind of toluene recovery device of wood furniture industry.
Background technology
Wood furniture produce in organic exhaust gas be mainly derived from the volatilization of organic principle in solvent and auxiliary material in coating, wherein paint spraying is main pollution section, other discharge organic gas also comprise paint process and dry run, due to the volatilization of organic solvent in these processes, generation organic exhaust gas discharges, and the volatile organic matter major pollutants that wood furniture produces in producing are toluene.
The toluene administration way that past is commonly used mainly contains: catalytic oxidation, absorption, UF membrane, condensation etc.
The absorption method in past mostly is Vacuum Pressure Swing Adsorption, but affects result of use because toluene desorption efficiency is not high or vacuum pump failure rate is high.
Therefore be badly in need of a kind of system of more efficient energy-saving, improve and reclaim efficiency, reduction cost recovery.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the absorption type toluene recovery device that the utility model provides a kind of wood furniture industry normal pressure to resolve.
Technical scheme: for solving the problems of the technologies described above, the absorption type toluene recovery device that a kind of wood furniture industry normal pressure that the utility model provides is resolved, comprises supercharging recovery passage, refrigerating circuit and toluene fluid reservoir;
Described supercharging recovery passage comprises the air inlet be linked in sequence by pipeline, semiclosed centrifugal compressor, air accumulator, adsorbent equipment, shell and tube evaporator and exhaust outlet, and described exhaust outlet is communicated with the air inlet of supercharging recovery passage; The air inlet of described adsorbent equipment is communicated with the gas outlet of air accumulator;
Described refrigerating circuit comprises and becomes the screw type refrigerating compressor of closed circulation, water-cooled condenser, expansion valve and shell and tube evaporator by refrigerant tubing sequential communication;
Described shell and tube evaporator be provided be communicated with the recovery approach of shell and tube evaporator inside gas recovery import, waste gas outlet and liquid outlet, and the refrigerant inlet be communicated with by the coolant channel of shell and tube evaporator inside and refrigerant outlet; Described gas recovery import is by the parsing outlet of pipeline and adsorbent equipment, and described waste gas outlet is communicated with exhaust outlet by pipeline; Described refrigerant inlet is sequentially communicated with expansion valve, water-cooled condenser by refrigerant tubing, and described refrigerant outlet is communicated with the air entry of screw type refrigerating compressor by refrigerant tubing; Described liquid outlet is communicated with toluene fluid reservoir.
Preferably, described adsorbent equipment comprise 2 groups be arranged in parallel by pneumatic operated valve switch alternately for adsorbing the adsorption tanks with dissection process.
Preferably, also switch board is comprised; Described air accumulator is provided with pressure sensor, and the bypass line of described semiclosed centrifugal compressor is provided with by-passing valve, and described semiclosed centrifugal compressor is provided with temperature sensor;
The electronic curtain, keyboard, memory, alarm and the power supply that are provided with controller in described switch board and are connected with controller circuitry, described pressure sensor, temperature sensor are connected with the controller circuitry in switch board with by-passing valve.
Preferably, described semiclosed centrifugal compressor is the semiclosed centrifugal compressor adopting fire-proof motor, explosion-proof solenoid valve and anti-explosion terminal box.
Preferably, described semiclosed centrifugal compressor is the semiclosed centrifugal compressor adopting oil-free lubrication mode.
Preferably, described by-passing valve is motor-driven pressure-difference by-passing valve.
Beneficial effect: compared to the method for Vacuum Pressure Swing Adsorption in prior art, the absorption type toluene recovery device that the wood furniture industry normal pressure that the utility model provides is resolved, larger for wood furniture industry usual toluene tolerance, and toluene atmospheric boiling point is 72 DEG C, pressure usury is in various features such as absorption, reenter adsorption tanks after being compressed by semiclosed centrifugal compressor by toluene gas to adsorb, significantly improve the pressure reduction of adsorption and desorption, desorption can be completed at ambient pressure, the effect reaching toluene-enriched need not as relying on vavuum pump in the prior art, and desorption efficiency significantly improves, system cost and fault rate also decline to a great extent thereupon, to be communicated with the air inlet of supercharging recovery passage by exhaust outlet simultaneously and to realize circular treatment, significantly can increase adsorption efficiency, reduce and directly discharge the pollution brought.And the real-time monitoring of temperature and pressure, warning and adjustment can be carried out further by temperature sensor and pressure sensor; Further in order to adapt to the organic explosive properties of main volatile produced during wood furniture is produced, semiclosed centrifugal compressor adopts fire-proof motor, explosion-proof solenoid valve, anti-explosion terminal box and oil-free lubrication mode, and safeguards system is run safely and reliably.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present utility model;
Fig. 2 is the information interaction schematic diagram of switch board and temperature, pressure sensor and by-passing valve in the utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment 1: as shown in Figure 1, the absorption type toluene recovery device that the wood furniture industry normal pressure that the present embodiment 1 provides is resolved, comprises supercharging recovery passage, refrigerating circuit and toluene fluid reservoir 9.
Described supercharging recovery passage comprises the air inlet, semiclosed centrifugal compressor 1, air accumulator 2, adsorbent equipment, shell and tube evaporator 4 and the exhaust outlet that are linked in sequence by pipeline, and described exhaust outlet is communicated with (not shown) with the air inlet of supercharging recovery passage; The air inlet of described adsorbent equipment is communicated with the gas outlet of air accumulator 2.
Described refrigerating circuit comprises and becomes the screw type refrigerating compressor 5 of closed circulation, water-cooled condenser 7, expansion valve 8 and shell and tube evaporator 4 by refrigerant tubing sequential communication.
Described shell and tube evaporator 4 be provided be communicated with the recovery approach of shell and tube evaporator inside gas recovery import, waste gas outlet and liquid outlet, and the refrigerant inlet be communicated with by the coolant channel of shell and tube evaporator inside and refrigerant outlet; Described gas recovery import is by the parsing outlet of pipeline and adsorbent equipment, and described waste gas outlet is communicated with exhaust outlet by pipeline; Described refrigerant inlet is sequentially communicated with expansion valve 8, water-cooled condenser 7 by refrigerant tubing, and described refrigerant outlet is communicated with by the air entry of refrigerant tubing with screw type refrigerating compressor 5; Described liquid outlet is communicated with toluene fluid reservoir 9.
Described adsorbent equipment comprise 2 groups be arranged in parallel by pneumatic operated valve switch alternately for adsorbing the adsorption tanks with dissection process, be respectively adsorption tanks A and adsorption tanks B, undertaken alternately switching by six pneumatic operated valves, adsorption tanks A connects the air inlet of adsorbent equipment by the first pneumatic operated valve 32, connect clean gas floss hole by the 3rd pneumatic operated valve 34, adsorb saturated after then by the second pneumatic operated valve 33 connect adsorbent equipment parsing outlet; Adsorption tanks B connects the air inlet of adsorbent equipment by the 4th pneumatic operated valve 62, connects clean gas floss hole by the 6th pneumatic operated valve 64, adsorb saturated after then by the 5th pneumatic operated valve 63 connect adsorbent equipment parsing outlet.
As shown in Figure 2, switch board 10 is also comprised; Described air accumulator 2 is provided with pressure sensor, and the bypass line of described semiclosed centrifugal compressor 1 is provided with by-passing valve, and described semiclosed centrifugal compressor 1 is provided with temperature sensor;
The electronic curtain, keyboard, memory, alarm and the power supply that are provided with controller in described switch board 10 and are connected with controller circuitry, described pressure sensor, temperature sensor are connected with the controller circuitry in switch board with by-passing valve.
In the present embodiment 1, collect the toluene gas come and in semiclosed centrifugal compressor, through the air bleeding valve of DN300 bore and pipeline enter air accumulator after pressure-raising to 0.4MPa pressure through the pipeline of DN500 bore and inlet valve, then adsorbent equipment (adsorbent equipment is imported and exported and is DN300) is entered, adsorbed by the microporous activated carbon adsorbent of adsorption device adsorbs tank cylindrical (German Carbotech company C20/2 active carbon), after one of them adsorption tanks is as saturated in adsorbent in adsorption tanks A, be switched to adsorption tanks B by pneumatic operated valve to adsorb, adsorption tanks A then drops to normal pressure and carries out desorption, the enrichment toluene gas parsed then enters in shell and tube evaporator through DN150 pipeline, liquefy under the cooling of low-temperature refrigerant and concentrate on base of evaporator, enter by the pipeline of DN100 the object that toluene fluid reservoir reaches recovery after confluxing.Certainly, above-mentioned pipeline bore is the preferred size of the absorption type toluene recovery device that wood furniture industry normal pressure is resolved, and according to the change in practical application place, the bore of each pipeline can suitably adjust.Larger for wood furniture industry usual toluene tolerance, and toluene atmospheric boiling point is 72 DEG C, pressure usury, in various features such as absorption, is collected the toluene gas come and is selected, through the pipeline of more than DN300 and inlet valve pressure-raising in semiclosed centrifugal compressor, then to carry out subsequent treatment.
Simultaneously, switch board by the open degree of the semiclosed centrifugal compressor by-passing valve of the data acquisition control of pressure sensor on air accumulator to regulate pressure at expulsion, by to the open degree of the semiclosed centrifugal compressor by-passing valve of the data acquisition control of temperature sensor on semiclosed centrifugal compressor to regulate delivery temperature, and report to the police with comparing of predetermined threshold value in memory by the data gathered, to guarantee security of system, stably to run.
Embodiment 2: substantially identical with embodiment 1 structure, something in common is not repeated, and difference is:
In order to adapt to the explosive properties of toluene gas, described semiclosed centrifugal compressor 1 is the semiclosed centrifugal compressor adopting fire-proof motor, explosion-proof solenoid valve and anti-explosion terminal box.
In order to prevent lubricating oil atomization after stain toluene gas, described semiclosed centrifugal compressor 1 is the semiclosed centrifugal compressor adopting oil-free lubrication mode.
Also at the heat radiation of rotor-type compressor outer setting or cooling device, the security of compression process can be promoted further simultaneously.
The by-passing valve that the bypass line of described semiclosed centrifugal compressor 1 is provided with is motor-driven pressure-difference by-passing valve.
In the utility model, the refrigeration system of refrigerating circuit adopts the screw type refrigerating compressor that can provide-5 DEG C of low-temperature receivers; High-efficiency water cooling condenser is adopted to cool high-temperature high-pressure refrigerant; Adopt electric expansion valve to cold-producing medium throttling; Shell and tube evaporator is adopted to guarantee that cold-producing medium cools toluene gas and makes toluene efficient liquefaction.
The utility model passes through toluene gas pressure-raising, and through the system of careful refinement, make adsorption system need not adopt Vacuum Pressure Swing Adsorption formula system, but replace complicated vavuum pump with semiclosed centrifugal compressor, significantly improve the pressure reduction of adsorption and desorption, thus desorption can be completed at ambient pressure, and desorption efficiency significantly improves, system cost and fault rate also decline to a great extent.
Above implementation column does not form restriction to the utility model, and relevant staff is in the scope not departing from the utility model technological thought, and the various change carried out and amendment, all drop in protection domain of the present utility model.
Claims (6)
1. a wood furniture industry absorption type toluene recovery device of resolving with normal pressure, is characterized in that: comprise supercharging recovery passage, refrigerating circuit and toluene fluid reservoir;
Described supercharging recovery passage comprises the air inlet be linked in sequence by pipeline, semiclosed centrifugal compressor, air accumulator, adsorbent equipment, shell and tube evaporator and exhaust outlet, and described exhaust outlet is communicated with the air inlet of supercharging recovery passage; The air inlet of described adsorbent equipment is communicated with the gas outlet of air accumulator;
Described refrigerating circuit comprises and becomes the screw type refrigerating compressor of closed circulation, water-cooled condenser, expansion valve and shell and tube evaporator by refrigerant tubing sequential communication;
Described shell and tube evaporator be provided be communicated with the recovery approach of shell and tube evaporator inside gas recovery import, waste gas outlet and liquid outlet, and the refrigerant inlet be communicated with by the coolant channel of shell and tube evaporator inside and refrigerant outlet; Described gas recovery import is by the parsing outlet of pipeline and adsorbent equipment, and described waste gas outlet is communicated with exhaust outlet by pipeline; Described refrigerant inlet is sequentially communicated with expansion valve, water-cooled condenser by refrigerant tubing, and described refrigerant outlet is communicated with the air entry of screw type refrigerating compressor by refrigerant tubing; Described liquid outlet is communicated with toluene fluid reservoir.
2. the wood furniture industry normal pressure according to claim 1 absorption type toluene recovery device of resolving, is characterized in that: described adsorbent equipment comprise 2 groups be arranged in parallel by pneumatic operated valve switch alternately for adsorbing the adsorption tanks with dissection process.
3. the absorption type toluene recovery device of wood furniture industry normal pressure parsing according to claim 1, is characterized in that: also comprise switch board; Described air accumulator is provided with pressure sensor, and the bypass line of described semiclosed centrifugal compressor is provided with by-passing valve, and described semiclosed centrifugal compressor is provided with temperature sensor;
The electronic curtain, keyboard, memory, alarm and the power supply that are provided with controller in described switch board and are connected with controller circuitry, described pressure sensor, temperature sensor are connected with the controller circuitry in switch board with by-passing valve.
4. the absorption type toluene recovery device of wood furniture industry normal pressure parsing according to claim 1, is characterized in that: described semiclosed centrifugal compressor is the semiclosed centrifugal compressor adopting fire-proof motor, explosion-proof solenoid valve and anti-explosion terminal box.
5. the absorption type toluene recovery device of wood furniture industry normal pressure parsing according to claim 1, is characterized in that: described semiclosed centrifugal compressor is the semiclosed centrifugal compressor adopting oil-free lubrication mode.
6. the absorption type toluene recovery device of wood furniture industry normal pressure parsing according to claim 3, is characterized in that: described by-passing valve is motor-driven pressure-difference by-passing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520325348.8U CN204656278U (en) | 2015-05-19 | 2015-05-19 | The absorption type toluene recovery device that wood furniture industry is resolved with normal pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520325348.8U CN204656278U (en) | 2015-05-19 | 2015-05-19 | The absorption type toluene recovery device that wood furniture industry is resolved with normal pressure |
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| Publication Number | Publication Date |
|---|---|
| CN204656278U true CN204656278U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520325348.8U Active CN204656278U (en) | 2015-05-19 | 2015-05-19 | The absorption type toluene recovery device that wood furniture industry is resolved with normal pressure |
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| Country | Link |
|---|---|
| CN (1) | CN204656278U (en) |
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2015
- 2015-05-19 CN CN201520325348.8U patent/CN204656278U/en active Active
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