CN105964113A - Zero gas consumption waste heat regeneration compressed air drying device - Google Patents

Zero gas consumption waste heat regeneration compressed air drying device Download PDF

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Publication number
CN105964113A
CN105964113A CN201610476596.1A CN201610476596A CN105964113A CN 105964113 A CN105964113 A CN 105964113A CN 201610476596 A CN201610476596 A CN 201610476596A CN 105964113 A CN105964113 A CN 105964113A
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air
compressed air
gas
valve
adsorption tower
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CN201610476596.1A
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CN105964113B (en
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骆佳豪
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Zhangjiagang Yingde Gas Co., Ltd.
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Jinhua Zhichan Wuyuan Information Technology Co Ltd
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Priority to CN201810133474.1A priority Critical patent/CN108187433A/en
Priority to CN201810134111.XA priority patent/CN108201775A/en
Priority to CN201810133119.4A priority patent/CN108283867B/en
Priority to CN201810134080.8A priority patent/CN108325346A/en
Priority to CN201610476596.1A priority patent/CN105964113B/en
Application filed by Jinhua Zhichan Wuyuan Information Technology Co Ltd filed Critical Jinhua Zhichan Wuyuan Information Technology Co Ltd
Priority to CN201810133126.4A priority patent/CN108325345A/en
Priority to CN201810134112.4A priority patent/CN108325347A/en
Publication of CN105964113A publication Critical patent/CN105964113A/en
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    • B01D53/26—Drying gases or vapours
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    • B01D2259/804—UV light

Abstract

The invention discloses a zero gas consumption waste heat regeneration compressed air drying device which comprises a compressed air inlet, an ultraviolet catalysis oil remover, an adsorption tower, a thermoelectric converter, a storage battery, a heating controller, an electric heater, an external power supply, a cooler A, a gas-liquid separator A, a cooler B, a gas-liquid separator B, a cloth bag dust collector, a dried compressed air outlet and 5 sets of check valves. The zero gas consumption waste heat regeneration compressed air drying device is different from a conventional compressed heat regeneration adsorption type drying machine, due to the creative design of the zero gas consumption waste heat regeneration compressed air drying device, the whole regeneration process, which is completed by two adsorption towers at present, of a dewatering drying and adsorption agent of compressed air can be completed by using only one adsorption tower, and the drying treatment effect is good. In the system, a thermoelectric conversion technique and an ultraviolet catalytic decomposition technique are creatively adopted, and excessive heat can be converted into electric energy by using the thermoelectric conversion technique, so that the system energy consumption can be greatly reduced; mineral oil in air can be efficiently removed by using the ultraviolet catalytic decomposition technique.

Description

A kind of zero QI consumed compressed air drier by afterheat regeneration
Technical field
The present invention relates to a kind of zero QI consumed compressed air drier by afterheat regeneration.
Background technology
Compressed air, because having easily storage, easy to control, good fluidity and the feature such as safe and environment-friendly, is the second power source being only second to electric power, is widely used in a lot of field such as food, electric power, chemical industry, pharmacy, mining and machine-building.The field of application is different, the most different to compressed-air actuated prescription, but be unable to do without efficient, the theme of energy-saving and environmental protection all the time.
Air is after compressor compresses, so that it may obtain the compressed air with elevated pressures.But, owing to air compressor itself is containing lubricating oil, when being compressed work, parts of lubricating oil is necessarily had to be mixed in compressed air, additionally, the air of nature itself also contains some solid particle and moisture etc., therefore, compressor the compressed air produced not is pure.Directly using this air without purified treatment in pneumatic circuit, pneumatic circuit can be made to break down, damage Pneumatic assembly, reduce assembly service life, production efficiency declines, and even causes the accident.According to statistics, the disorderly closedown of pneumatic system has 85% to be above owing to using unholiness, moist compressed air to cause.Tracing it to its cause, the moisture in compressed air can cause parts corrosion, and winter can condense icing, results in blockage；Oil gas condensation precipitation formed greasy dirt often result in sealing member aging, lost efficacy；Dust then accelerates the abrasion of moving parts, and deposition results in blockage, and causes the meaningless pressure loss etc..Therefore, purifying these compressed airs to obtain pure compressed air is a requisite important step in baric systerm.
Wherein, on the factor that pneumatic system impact is maximum it is exactly the moisture contained by compressed air.Moisture is widely present in surrounding air, cannot remove completely, after this part water enters compressor compresses, change due to temperature, pressure, condensed water will be had to separate out, having a strong impact on running and the function life-span of other gas equipment of Compressor Group, the moisture therefore removed in air is the most necessary.
It is relative for being dried, and is namely considered dry air in certain demand, is regarded as being dried not when other purposes.Therefore, compressed air needs being dried of which kind of degree, meets and middle demand, when being design or selection drying machine, and the factor of overriding concern.Because selecting need not the drying machine of the lowest dew point, by increase buying and operating cost.According to above several different theoretical methods, the most develop and the compressed air drying method that uses mainly included following several:
(1) adsorption dry method:
Adsorption dry method utilizes the adsorbent absorption property to moisture, and such as silica gel, activated alumina and molecular sieve etc., they all have the strongest absorbability to moisture.The moisture absorption process of adsorbent is physical change, is reproducible, under high pressure adsorbs, desorbing under low pressure, i.e. pressure-variable adsorption (PSA)；Also can adsorb at normal pressure, regenerate during heating, i.e. temp.-changing adsorption (TSA)；Or high normal pressure and temperature adsorbs, constant-pressure and high-temperature desorbing (PTC).The aridity of this kind of adsorption dry can reach dew points at normal pressure-70 DEG C.
(2) deliquescence seasoning:
Deliquescence formula exsiccator is also with the adsorbent characterization of adsorption to moisture, and only the adsorbent of deliquescence formula is after adsorption moisture, becomes liquid and discharges, can not regenerate towards the adsorbent after joint, and can cause environmental pollution.This method is also called chemical method.This kind of exsiccator can reach the dew point of about-38 DEG C.
(3) freeze-drying:
Freeze-drying is that compressed air is cooled down by the cold utilizing refrigeration compressor to produce, and makes compressed air reach the dew point temperature corresponding to its pressure, so that the moisture in compressed air separates out, reaches drying purpose.The aridity of this kind of seasoning can reach dew points at normal pressure-23 DEG C.
(4) membrance separation seasoning:
Utilizing membrane separation technique to be dried compressed air is the most promising drying mode of one.Compressed air is through hollow fiber film, and the osmotic pressure for middle material is different, makes water separate from compressed air, thus reaches drying effect.
Existing compressed air drying method generally exists that operating cost is high, absorption material expends the shortcomings such as big, service life of equipment is short, and its drying effect be also difficult to meet equipment the highest use gas requirement.For this reason, it may be necessary to find new method and approach to solve this difficult problem.
Summary of the invention
In order to solve many deficiencies of the prior art, the invention provides a kind of zero QI consumed compressed air drier by afterheat regeneration, this system includes compressed air inlet, ultraviolet catalyzed grease trap, adsorption tower, thermoelectric converter, accumulator, heating controller, electric heater, external power supply, cooler A, gas-liquid separator A, cooler B, gas-liquid separator B, sack cleaner, is dried compressed air outlet and 5 set stop valves.Wherein, after air enters native system by compressed air inlet, initially entering ultraviolet catalyzed grease trap, the air path after its deoiling treatment is divided into A, B two-way, the connected mode on A road is: air passes sequentially through stop valve A, thermoelectric converter, shutoff valve C, eventually enters into adsorption tower；The connected mode on B road is: air passes sequentially through stop valve B, cooler B, gas-liquid separator B, stop valve D, eventually enters into adsorption tower.Wherein, compressed air outlet gas flow path is a road, and air passes sequentially through cooler A, gas-liquid separator A, sack cleaner, is finally sent by dry compressed air outlet, is delivered at gas equipment.Wherein, gas-liquid separator A and gas-liquid separator B is respectively equipped with automatic drain valve and Manual draining valve.Wherein, the transport path of electric energy is: the electric energy that electric energy produced by thermoelectric converter and external power supply provide, and flows to the electric heater being positioned within adsorption tower after all entering accumulators store, and the regulation and control of heated controller.Wherein, ultraviolet catalyzed grease trap outer housing is stainless steel, bottom it and top is respectively equipped with air intake valve and drain tap, it is internally provided with 1 ultraviolet light generator, and it is individually fixed in equipment corner by 4 fixed supports, ultraviolet light generator connects wire by two sections and is connected with the electric control gear of device external, is enclosed with Tungstic anhydride. catalysis net outside ultraviolet light generator.Compressed air containing mineral oil is by being positioned at inside the air intake valve access arrangement bottom ultraviolet catalyzed grease trap, air comes in contact with the Tungstic anhydride. catalysis net being fixed within reaction unit, now, it is positioned at the ultraviolet light generator in the middle of Tungstic anhydride. catalysis net to start working under the regulation and control of electric control gear, ultraviolet is launched in whole equipment, under the conditions of being in ultraviolet wavelength irradiation, tungsten atom meeting Ultraviolet radiation absorbing in Tungstic anhydride., its low-lying level electrons is optically excited, and there is energy level transition, on original cost band, produce corresponding hole simultaneously, thus produce a large amount of free radical, and the mineral oil component exhaustive oxidation in air is cracked, its primary product is water vapour and carbon dioxide, the compressed air after the deoiling treatment drain tap through equipment top is discharged, enter next treatment process.
The complete working period of native system is divided into the following two stage:
(1) the adsorbent water suction stage: in this stage, stop valve A and shutoff valve C are opening, and stop valve B and stop valve D is closed mode.Air after air compressor compresses is entered native system by compressed air inlet, after the deoiling treatment of ultraviolet catalyzed grease trap, entering thermoelectric converter by the stop valve A opened, a part of heat is converted to electric energy, and is stored in accumulator by air at this.Air significant hypothermal after thermo-electric conversion, adsorption tower is entered by the shutoff valve C opened, now the electric heater in adsorption tower is closed mode, and air is after the dehydration of the activated alumina adsorbents in adsorption tower, and temperature and moisture the most substantially reduce.Air after adsorption treatment, cooler A is escaped and enter from adsorption tower, further cooled at this, then enter gas-liquid separator A, air completes the separation of moisture at this, isolated waste liquid, through automatic drain valve A drainage gas-liquid separator, is also manually operable Manual draining valve A when automatic drain valve A fault and carries out urgent draining.Dry air after gas-liquid separation processes enters sack cleaner, after removing the dust impurities of various particle diameters further, discharges native system by dry compressed air outlet, air pipe line be delivered to gas equipment supply and use.
When adsorbent water suction is close to time saturated, system automatically into second stage, i.e. the adsorbent dehydration regeneration stage.
(2) adsorbent dehydration regeneration stage: in this stage, stop valve B and stop valve D are opening, and stop valve A and shutoff valve C are closed mode.Air after air compressor compresses is entered native system by compressed air inlet, after the deoiling treatment of ultraviolet catalyzed grease trap, cooler B is entered by the stop valve B opened, tentatively cool at this, then enter gas-liquid separator B, air completes the separation of portion of water at this, and isolated waste liquid, through automatic drain valve B drainage gas-liquid separator, is also manually operable Manual draining valve B when automatic drain valve B fault and carries out urgent draining.Partial desiccation air after gas-liquid separation processes enters adsorption tower by the stop valve D opened, now the electric heater in adsorption tower is opening, accumulator is after the electric energy heated controller regulation and control that a upper stage is stored, it is delivered to electric heater, adsorbent in adsorption tower is heated, under the dual function of heating and air purging, adsorbent generation dehydrate, the moisture of abjection is taken out of adsorption tower by air and enters cooler A, further cooled at this, then enter gas-liquid separator A, air completes the separation of moisture at this, isolated waste liquid is through automatic drain valve A drainage gas-liquid separator, also it is manually operable Manual draining valve A when automatic drain valve A fault and carries out urgent draining.Dry air after gas-liquid separation processes enters sack cleaner, after removing the dust impurities of various particle diameters further, discharges native system by dry compressed air outlet, air pipe line be delivered to gas equipment supply and use.
When, after adsorbent dehydrate, system is automatically into the first stage, i.e. adsorbent absorbs water the stage.
Wherein, the dischargeable capacity of adsorption tower is 230m3, its internal adsorbent filled is spherical activated alumina (Al2O3), its a diameter of 4 ~ 6mm, bulk density is 0.80g/m3, specific surface area is 340m2/ g, intensity is more than 130N/ grain.
Wherein, thermoelectric converter is alkali metal thermo-electric conversion regime, and its temperature adaptation scope is 105 ~ 900 DEG C, and conversion efficiency can reach about 40%, and continuous generating dutation can reach 14000 hours.
Wherein, the working pressure range of ultraviolet catalyzed grease trap is 0.06 ~ 0.95MPa, and dischargeable capacity is 15m3, the running voltage of its ultraviolet light generator is 35V, and power is 100W, and its luminescent spectrum energy focuses primarily upon at 320nm wavelength, and average life was up to 8000 hours.
Compressed air after being processed by native system, its moisture removal efficiency is up to 99.4%.
It is an advantage of the current invention that:
(1) existing compression heat regeneration absorption drier needs at least 2 adsorption towers and Two-way Cycle gas circuit just can complete whole dehydrate and adsorbent reactivation process, and the Creative Design of native system makes 1 adsorption tower of its need just can complete the regeneration overall process of compressed-air actuated dehydrate and adsorbent, there is good dried effect, and be reduced significantly the volume and weight of equipment.
(2) native system have employed the thermoelectric generation technology of advanced person, unnecessary heat is converted to electric energy, greatly reduces system energy consumption.
(3) what native system was creative have employed ultraviolet catalytic decomposition technique, mineral oil contained in air can thoroughly be decomposed removal, be effectively protected rear end equipment.
(4) native system have employed pair gas circuit periodic transformation formula plenum system, coordinates electrical heating method that adsorbent is carried out Regeneration Treatment, it is possible to realizes being lost without air, effectively saves production cost, and can provide lasting, the air supply of high-quality for rear end gas equipment.
Accompanying drawing explanation
Fig. 1 is the system structure schematic diagram of the present invention.
In figure: 1-compressed air inlet, 2-ultraviolet catalyzed grease trap, 3-adsorption tower, 4-thermoelectric converter, 5-accumulator, 6-heating controller, 7-electric heater, 8-external power supply, 9-cooler A, 10-gas-liquid separator A, 11-cooler B, 12-gas-liquid separator B, 13-sack cleaner, 14-is dried compressed air outlet, 15-stop valve A, 16-stop valve B, 17-shutoff valve C, 18-stop valve D, 19-automatic drain valve A, 20-Manual draining valve A, 21-automatic drain valve B, 22-Manual draining valve B
Fig. 2 is the schematic diagram of ultraviolet catalyzed grease trap.
In figure: 21-air intake valve, 22-rustless steel outer housing, 23-ultraviolet light generator, 24-Tungstic anhydride. catalysis net, 25-fixed support, 26-electric control gear, 27-connect wire, 28-drain tap
Detailed description of the invention
As shown in Figure 1, zero QI consumed compressed air drier by afterheat regeneration, this system includes compressed air inlet 1, ultraviolet catalyzed grease trap 2, adsorption tower 3, thermoelectric converter 4, accumulator 5, heating controller 6, electric heater 7, external power supply 8, cooler A9, gas-liquid separator A10, cooler B11, gas-liquid separator B12, sack cleaner 13, is dried compressed air outlet 14, stop valve A15, stop valve B16, shutoff valve C 17, stop valve D18, automatic drain valve A19, Manual draining valve A20, automatic drain valve B21, Manual draining valve B22.Wherein, after air enters native system by compressed air inlet 1, initially enter ultraviolet catalyzed grease trap 2, air path after its deoiling treatment is divided into A, B two-way, the connected mode on A road is: air passes sequentially through stop valve A15, thermoelectric converter 4, shutoff valve C 17, eventually enters into adsorption tower 3；The connected mode on B road is: air passes sequentially through stop valve B16, cooler B11, gas-liquid separator B12, stop valve D18, eventually enters into adsorption tower 3.Wherein, compressed air outlet gas flow path is a road, and air passes sequentially through cooler A9, gas-liquid separator A10, sack cleaner 13, is finally sent by dry compressed air outlet 14, is delivered at gas equipment.Wherein, gas-liquid separator A10 and gas-liquid separator B12 is respectively equipped with automatic drain valve A19, automatic drain valve B21 and Manual draining valve A20, Manual draining valve B22.Wherein, the transport path of electric energy is: the electric energy that electric energy produced by thermoelectric converter 4 and external power supply 8 provide, and all enters accumulator 5 and stores, and flows to the electric heater 7 being positioned within adsorption tower 3 after heated controller 6 regulation and control.Wherein, ultraviolet catalyzed grease trap 2 outer housing is stainless steel, bottom it and top is respectively equipped with air intake valve 21 and drain tap 28, it is internally provided with 1 ultraviolet light generator 23, and it is individually fixed in equipment corner by 4 fixed supports 25, ultraviolet light generator 23 connects wire 27 by two sections and is connected with the electric control gear 26 of device external, is enclosed with Tungstic anhydride. catalysis net 24 outside ultraviolet light generator 23.nullCompressed air containing mineral oil is by being positioned at inside air intake valve 21 access arrangement bottom ultraviolet catalyzed grease trap 2，Air comes in contact with the Tungstic anhydride. catalysis net 24 being fixed within reaction unit，Now，It is positioned at the ultraviolet light generator 23 in the middle of Tungstic anhydride. catalysis net 24 to start working under the regulation and control of electric control gear 26，Ultraviolet is launched in whole equipment，Under the conditions of being in ultraviolet wavelength irradiation，Tungsten atom in Tungstic anhydride. can Ultraviolet radiation absorbing，Its low-lying level electrons is optically excited，And there is energy level transition，On original cost band, produce corresponding hole simultaneously，Thus produce a large amount of free radical，And the mineral oil component exhaustive oxidation in air is cracked，Its primary product is water vapour and carbon dioxide，The compressed air after the deoiling treatment drain tap 28 through equipment top is discharged，Enter next treatment process.
The complete working period of native system is divided into the following two stage:
(1) the adsorbent water suction stage: in this stage, stop valve A15 and shutoff valve C 17 are opening, and stop valve B16 and stop valve D18 is closed mode.Air after air compressor compresses is entered native system by compressed air inlet 1, after the deoiling treatment of ultraviolet catalyzed grease trap 2, entering thermoelectric converter 4 by the stop valve A15 opened, a part of heat is converted to electric energy, and is stored in accumulator 5 by air at this.Air significant hypothermal after thermo-electric conversion, adsorption tower 3 is entered by the shutoff valve C 17 opened, now the electric heater 7 in adsorption tower 3 is closed mode, and air is after the dehydration of the activated alumina adsorbents in adsorption tower 3, and temperature and moisture the most substantially reduce.Air after adsorption treatment, cooler A9 is escaped and enter from adsorption tower 3, further cooled at this, then enter gas-liquid separator A10, air completes the separation of moisture at this, isolated waste liquid, through automatic drain valve A19 drainage gas-liquid separator, is also manually operable Manual draining valve A20 when automatic drain valve A19 fault and carries out urgent draining.Dry air after gas-liquid separation processes enters sack cleaner 13, after removing the dust impurities of various particle diameters further, discharges native system by dry compressed air outlet 14, air pipe line be delivered to gas equipment supply and use.
When adsorbent water suction is close to time saturated, system automatically into second stage, i.e. the adsorbent dehydration regeneration stage.
(2) adsorbent dehydration regeneration stage: in this stage, stop valve B16 and stop valve D18 are opening, and stop valve A15 and shutoff valve C 17 are closed mode.Air after air compressor compresses is entered native system by compressed air inlet 1, after the deoiling treatment of ultraviolet catalyzed grease trap 2, cooler B11 is entered by the stop valve B16 opened, tentatively cool at this, then enter gas-liquid separator B12, air completes the separation of portion of water at this, and isolated waste liquid, through automatic drain valve B21 drainage gas-liquid separator, is also manually operable Manual draining valve B22 when automatic drain valve B21 fault and carries out urgent draining.Partial desiccation air after gas-liquid separation processes enters adsorption tower 3 by the stop valve D18 opened, now the electric heater 7 in adsorption tower 3 is opening, accumulator 5 is after electric energy heated controller 6 regulation and control that a upper stage is stored, it is delivered to electric heater 7, adsorbent in adsorption tower 3 is heated, under the dual function of heating and air purging, adsorbent generation dehydrate, the moisture of abjection is taken out of adsorption tower 3 by air and enters cooler A9, further cooled at this, then enter gas-liquid separator A10, air completes the separation of moisture at this, isolated waste liquid is through automatic drain valve A19 drainage gas-liquid separator, also it is manually operable Manual draining valve A20 when automatic drain valve A19 fault and carries out urgent draining.Dry air after gas-liquid separation processes enters sack cleaner 13, after removing the dust impurities of various particle diameters further, discharges native system by dry compressed air outlet 14, air pipe line be delivered to gas equipment supply and use.When, after adsorbent dehydrate, system is automatically into the first stage, i.e. adsorbent absorbs water the stage.Wherein, the dischargeable capacity of adsorption tower 2 is 230m3, its internal adsorbent filled is spherical activated alumina (Al2O3), its a diameter of 4 ~ 6mm, bulk density is 0.80g/m3, specific surface area is 340m2/ g, intensity is more than 130N/ grain；Wherein, thermoelectric converter 3 is alkali metal thermo-electric conversion regime, and its temperature adaptation scope is 105 ~ 900 DEG C, and conversion efficiency can reach about 40%, and continuous generating dutation can reach 14000 hours；Wherein, the working pressure range of ultraviolet catalyzed grease trap 2 is 0.06 ~ 0.95MPa, and dischargeable capacity is 15m3, the running voltage of its ultraviolet light generator 23 is 35V, and power is 100W, and its luminescent spectrum energy focuses primarily upon at 320nm wavelength, and average life was up to 8000 hours.
Compressed air after being processed by native system, its moisture removal efficiency is up to 99.4%.

Claims (6)

1. a QI consumed compressed air drier by afterheat regeneration, it is characterized in that, including compressed air inlet, ultraviolet catalyzed grease trap, adsorption tower, thermoelectric converter, accumulator, heating controller, electric heater, external power supply, cooler A, gas-liquid separator A, cooler B, gas-liquid separator B, sack cleaner, be dried compressed air outlet and 5 set stop valves etc.；Wherein, air enters ultraviolet catalyzed grease trap by compressed air inlet, and the air path after its deoiling treatment is divided into A, B two-way, the connected mode on A road to be: air passes sequentially through stop valve A, thermoelectric converter, shutoff valve C, eventually enters into adsorption tower；The connected mode on B road is: air passes sequentially through stop valve B, cooler B, gas-liquid separator B, stop valve D, eventually enters into adsorption tower；Wherein, compressed air outlet gas flow path is a road, and air passes sequentially through cooler A, gas-liquid separator A, sack cleaner, is finally sent by dry compressed air outlet, is delivered at gas equipment；Wherein, gas-liquid separator A and gas-liquid separator B is respectively equipped with automatic drain valve and Manual draining valve；Wherein, the transport path of electric energy is: the electric energy that electric energy produced by thermoelectric converter and external power supply provide, and flows to the electric heater being positioned within adsorption tower after all entering accumulators store, and the regulation and control of heated controller.
nullZero QI consumed compressed air drier by afterheat regeneration the most according to claim 1，It is characterized in that，Bottom ultraviolet catalyzed grease trap and top is respectively equipped with air intake valve and drain tap，It is internally provided with 1 ultraviolet light generator，And it is individually fixed in equipment corner by 4 fixed supports，Ultraviolet light generator connects wire by two sections and is connected with the electric control gear of device external，Tungstic anhydride. catalysis net it is enclosed with outside ultraviolet light generator，Compressed air containing mineral oil is by being positioned at inside the air intake valve access arrangement bottom ultraviolet catalyzed grease trap，Air comes in contact with the Tungstic anhydride. catalysis net being fixed within reaction unit，It is now placed in the ultraviolet light generator in the middle of Tungstic anhydride. catalysis net to start working under the regulation and control of electric control gear，Ultraviolet is launched in whole equipment，Under the conditions of being in ultraviolet wavelength irradiation，Tungsten atom in Tungstic anhydride. can Ultraviolet radiation absorbing，Its low-lying level electrons is optically excited，And there is energy level transition，On original cost band, produce corresponding hole simultaneously，Thus produce a large amount of free radical，And the mineral oil component exhaustive oxidation in air is cracked，Its primary product is water vapour and carbon dioxide，The compressed air after the deoiling treatment drain tap through equipment top is discharged，Enter next treatment process.
Zero QI consumed compressed air drier by afterheat regeneration the most according to claim 1, it is characterised in that the complete working period of native system is divided into the following two stage:
null(1) the adsorbent water suction stage: in this stage，Stop valve A and shutoff valve C are opening，And stop valve B and stop valve D is closed mode，Air after air compressor compresses is entered native system by compressed air inlet，After the deoiling treatment of ultraviolet catalyzed grease trap，Thermoelectric converter is entered by the stop valve A opened，A part of heat is converted to electric energy at this by air，And be stored in accumulator，Air significant hypothermal after thermo-electric conversion，Adsorption tower is entered by the shutoff valve C opened，Now the electric heater in adsorption tower is closed mode，Air is after the dehydration of the activated alumina adsorbents in adsorption tower，Temperature and moisture the most substantially reduce，Air after adsorption treatment，Cooler A is escaped and enter from adsorption tower，Further cool at this，Then enter gas-liquid separator A，Air completes the separation of moisture at this，Isolated waste liquid is through automatic drain valve A drainage gas-liquid separator，When automatic drain valve A fault, manual operation Manual draining valve A carries out urgent draining，Dry air after gas-liquid separation processes enters sack cleaner，After removing the dust impurities of various particle diameters further，Native system is discharged by dry compressed air outlet，It is delivered to gas equipment supply by air pipe line use；
null(2) the adsorbent dehydration regeneration stage: when adsorbent absorbs water close to time saturated，System is automatically into second stage，The i.e. adsorbent dehydration regeneration stage，Stop valve B and stop valve D is opening，And stop valve A and shutoff valve C are closed mode，Air after air compressor compresses is entered native system by compressed air inlet，After the deoiling treatment of ultraviolet catalyzed grease trap，Cooler B is entered by the stop valve B opened，Tentatively cool at this，Then enter gas-liquid separator B，Air completes the separation of portion of water at this，Isolated waste liquid is through automatic drain valve B drainage gas-liquid separator，When automatic drain valve B fault, manual operation Manual draining valve B carries out urgent draining，Partial desiccation air after gas-liquid separation processes enters adsorption tower by the stop valve D opened，Now the electric heater in adsorption tower is opening，Accumulator is after the electric energy heated controller regulation and control that a upper stage is stored，It is delivered to electric heater，Adsorbent in adsorption tower is heated，Under the dual function of heating and air purging，Adsorbent generation dehydrate，The moisture of abjection is taken out of adsorption tower by air and enters cooler A，Further cooled at this，Then enter gas-liquid separator A，Air completes the separation of moisture at this，Isolated waste liquid is through automatic drain valve A drainage gas-liquid separator，When automatic drain valve A fault, manual operation Manual draining valve A carries out urgent draining，Dry air after gas-liquid separation processes enters sack cleaner，After removing the dust impurities of various particle diameters further，Native system is discharged by dry compressed air outlet，It is delivered to gas equipment supply by air pipe line use；When, after adsorbent dehydrate, system is automatically into the first stage, i.e. adsorbent absorbs water the stage.
Zero QI consumed compressed air drier by afterheat regeneration the most according to claim 1, it is characterised in that the dischargeable capacity of adsorption tower is 230m3, its internal adsorbent filled is spherical activated alumina (Al2O3), its a diameter of 4 ~ 6mm, bulk density is 0.80g/m3, specific surface area is 340m2/ g, intensity is more than 130N/ grain.
Zero QI consumed compressed air drier by afterheat regeneration the most according to claim 1, it is characterised in that thermoelectric converter is alkali metal thermo-electric conversion regime, its temperature adaptation scope is about 105 ~ 900 DEG C.
Zero QI consumed compressed air drier by afterheat regeneration the most according to claim 1, it is characterised in that the working pressure range of ultraviolet catalyzed grease trap is about 0.06 ~ 0.95MPa, dischargeable capacity is 15m3, the running voltage of its ultraviolet light generator is 35V, and power is 100W.
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