CN108211684A - A kind of zero gas consumption residual heat regenerating compressed air drying system - Google Patents

A kind of zero gas consumption residual heat regenerating compressed air drying system Download PDF

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Publication number
CN108211684A
CN108211684A CN201810134074.2A CN201810134074A CN108211684A CN 108211684 A CN108211684 A CN 108211684A CN 201810134074 A CN201810134074 A CN 201810134074A CN 108211684 A CN108211684 A CN 108211684A
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gas
valve
shut
ultraviolet
adsorption tower
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骆佳豪
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Jinhua Zhichan Wuyuan Information Technology Co Ltd
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Jinhua Zhichan Wuyuan Information Technology Co Ltd
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    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption
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    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
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    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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    • B01D53/26—Drying gases or vapours
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
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    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40086—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by using a purge gas
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    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/40096—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating by using electrical resistance heating
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    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/804—UV light

Abstract

The invention discloses a kind of zero gas consumption residual heat regenerating compressed air drying system, which includes compressed air inlet, ultraviolet catalyzed oil expeller, adsorption tower, thermoelectric converter, accumulator, heating controller, electric heater, external power supply, cooler A, gas-liquid separator A, cooler B, gas-liquid separator B, dust filter unit, dry compressed gas outlet and 5 sets of shut-off valves.This system is different from existing compression heat regeneration absorption drier, its creative design, which has achieved, only needs 1 adsorption tower just can complete the dehydration and drying of compressed air for needing 2 adsorption towers that could complete originally and the regeneration overall process of adsorbent, has good drying process effect.This system also creativeness employs thermoelectric generation technology and ultraviolet catalytic decomposition technique, and extra heat can be converted to electric energy, greatly reduce system energy consumption by thermoelectric generation technology；And ultraviolet catalytic decomposition technique can efficiently remove mineral oil contained in gas.

Description

A kind of zero gas consumption residual heat regenerating compressed air drying system
Technical field
The present invention relates to a kind of zero gas consumption residual heat regenerating compressed air drying systems.
Background technology
Compressed air is because having the characteristics that easily to store, easy to control, good fluidity and safe and environment-friendly, is only second to electric power Second power source is widely used in many fields such as food, electric power, chemical industry, pharmacy, mining and machine-building.Application Field is different, also different to the quality requirement of compressed air, but be unable to do without efficient, energy-saving and environmental protection themes always.
Air is after compressor compresses, so that it may obtain the compressed air with elevated pressures.But due to air compressor Itself contains lubricating oil, when carrying out compression work, necessarily has parts of lubricating oil to be mixed into compressed air, in addition, natural The air on boundary is in itself also containing some solid particles and moisture etc., and therefore, the compressed air generated by compressor is not pure 's.Directly pneumatic circuit can be made to break down using this gas without purified treatment in pneumatic circuit, damage pneumatic group Part, reduces component service life, and production efficiency declines or even causes the accident.According to statistics, the disorderly closedown of pneumatic system has 85% It is due to the use of caused by compressed gas that is unholiness, not drying above.To find out its cause, the moisture in compressed air can cause portion Part corrosion, winter can condense icing, result in blockage；Oil gas condensation precipitate to be formed greasy dirt often result in sealing element aging, failure；Powder Dirt then accelerates the abrasion of moving parts, and deposition results in blockage, and causes meaningless pressure loss etc..Therefore, these compressions are purified Gas is an essential important link in baric systerm to obtain pure compressed gas.
Wherein, it is exactly moisture contained in compressed air maximum factor to be influenced on pneumatic system.Moisture is in surrounding air In be widely present, can not remove, after this part water enters compressor compresses, due to the variation of temperature, pressure, will have cold completely Condensate is precipitated, and seriously affects the operation of Compressor Group and the function life-span of other gas equipments, therefore remove the water in air It is very necessary to divide.
Drying is opposite, that is, is considered as dry air in certain demand, is regarded as not in other purposes Enough dryings.Therefore, compressed air needs the drying of which kind of degree, first when being design or selection drying machine which kind of demand met The factor to be considered.Because selection does not need to the drying machine of too low dew point, buying and operating cost will be increased.According to above several Different theoretical methods, the compressed air drying method developed and used at present mainly include following several：
（1）It is adsorbed by drying method：
Method is adsorbed by drying using adsorbent to the absorption property of moisture, such as silica gel, activated alumina and molecular sieve etc., they are to water Dividing all has very strong adsorption capacity.The moisture absorption process of adsorbent is physical change, is reproducible, adsorbs under high pressure, low Pressure desorption, i.e. pressure-variable adsorption（PSA）；Also it can be adsorbed in normal pressure, when heating regenerates, i.e. temp.-changing adsorption（TSA）；Or high pressure is normal Temperature absorption, constant-pressure and high-temperature desorption（PTC）.This kind of aridity being adsorbed by drying can reach -70 DEG C of dew points at normal pressure.
（2）Deliquescence seasoning：
Deliquescence formula drier is also with adsorbent to the characterization of adsorption of moisture, and only the adsorbent of deliquescence formula is in adsorption moisture Afterwards, become liquid to discharge, the adsorbent after deliquescence cannot regenerate, and can cause environmental pollution.This method is also known as chemistry Method.This kind of drier can reach -38 DEG C or so of dew point.
（3）Freeze-drying：
Freeze-drying is that the cold generated using refrigeration compressor cools down compressed air, and compressed air is made to reach its pressure Dew-point temperature corresponding to power so as to which the moisture in compressed air is precipitated, reaches drying purpose.The aridity of this kind of seasoning - 23 DEG C of dew points at normal pressure can be reached.
（4）UF membrane seasoning：
It is a kind of extremely promising drying mode that compressed air, which is dried, using membrane separation technique.Compressed air is by hollow During fiber membrane, the osmotic pressure of each substance is different, water is made to be separated from compressed air, so as to reach drying effect.
Existing compressed air drying method generally existing operating cost is high, absorption material expends big, service life of equipment The shortcomings of short, and its drying effect is also difficult to meet the higher and higher use gas requirement of equipment.For this reason, it may be necessary to find new method This problem is solved with approach.
Invention content
In order to solve many deficiencies of the prior art, the present invention provides zero gas consumption residual heat regenerating compressed airs of one kind to do Drying system, the system include compressed air inlet, ultraviolet catalyzed oil expeller, adsorption tower, thermoelectric converter, accumulator, heating Controller, electric heater, external power supply, cooler A, gas-liquid separator A, cooler B, gas-liquid separator B, dust filter unit, Dry compressed gas outlet and 5 sets of shut-off valves.Wherein, it after gas enters this system by compressed air inlet, initially enters Ultraviolet catalyzed oil expeller, the gas path after its deoiling treatment are divided into A, B two-way, and the connection mode on A roads is：Gas according to It is secondary by shut-off valve A, thermoelectric converter, shutoff valve C, eventually enter into adsorption tower；The connection mode on B roads is：Gas passes sequentially through Shut-off valve B, cooler B, gas-liquid separator B, shut-off valve D, eventually enter into adsorption tower.Wherein, compressed gas outlet gas flow path is one Road, gas pass sequentially through cooler A, gas-liquid separator A, dust filter unit, are finally sent out by dry compressed gas outlet, conveying To gas equipment.Wherein, gas-liquid separator A and gas-liquid separator B are respectively equipped with automatic drain valve and Manual draining valve.Its In, the transport path of electric energy is：The electric energy that electric energy caused by thermoelectric converter and external power supply provide, is deposited into accumulator Storage, and the electric heater inside adsorption tower is conveyed to after the regulation and control of heated controller.Wherein, outside ultraviolet catalyzed oil expeller It covers for stainless steel, bottom and top are respectively equipped with air intake valve and drain tap, are internally provided with 1 ultraviolet light and occur Device, and pass through 4 fixing brackets and be individually fixed in equipment quadrangle, ultraviolet light generator passes through two sections of connecting wires and device external Electric control gear be connected, be enclosed with tungstic acid catalysis net on the outside of ultraviolet light generator.Compressed gas containing mineral oil passes through Air intake valve positioned at ultraviolet catalyzed oil expeller bottom enters inside equipment, gas and three oxygen being fixed on inside reaction unit Change tungsten catalysis net to be in contact, at this point, regulation and control of the ultraviolet light generator among tungstic acid catalysis net in electric control gear Lower start-up operation, ultraviolet light is emitted into whole equipment, when under ultraviolet wavelength irradiation condition, the tungsten atom in tungstic acid Meeting Ultraviolet radiation absorbing, low-lying level electrons are excited by light, and energy level transition occurs, while are generated accordingly on original cost band Hole so as to generate a large amount of free radicals, and the mineral oil component exhaustive oxidation in gas is cracked, and primary product is water vapour And carbon dioxide, the compressed gas after deoiling treatment is discharged through the drain tap at the top of equipment, into next treatment process.
The complete working period of this system is divided into following two stages：
（1）Adsorbent absorbs water the stage：In this stage, shut-off valve A and shutoff valve C are opening, and shut-off valve B and shut-off valve D is in off state.This system is entered by compressed air inlet by gas compressor compressed gas, by ultraviolet catalyzed After the deoiling treatment of oil expeller, thermoelectric converter is entered by the shut-off valve A of unlatching, gas is herein converted to a part of heat Electric energy, and be stored in accumulator.Gas significant hypothermal after heat to electricity conversion enters absorption by the shutoff valve C of unlatching Tower, at this time the electric heater in adsorption tower be in off state, dehydration of the gas by the activated alumina adsorbents in adsorption tower After effect, temperature and moisture are substantially reduced.Gas after adsorption treatment escapes and enter cooler from adsorption tower A is further cooled herein, and then into gas-liquid separator A, gas is completed the separation of moisture, isolated herein Waste liquid through automatic drain valve A drainage gas-liquid separators, be also manually operable Manual draining valve A when automatic drain valve A failures Carry out urgent draining.By gas-liquid separation, treated that dry gas enters dust filter unit, further removes various grain sizes After dust impurities, by dry compressed gas outlet discharge this system, gas equipment supply is delivered to by gas piping and is used.
When adsorbent absorbs water close to saturation, system is automatically into second stage, i.e. adsorbent dehydration regeneration stage.
（2）The adsorbent dehydration regeneration stage：In this stage, shut-off valve B and shut-off valve D are opening, and shut-off valve A It is in off state with shutoff valve C.This system is entered by compressed air inlet by gas compressor compressed gas, by purple After the deoiling treatment of outside line catalysis oil expeller, cooler B is entered by the shut-off valve B of unlatching, is tentatively cooled herein, Then enter gas-liquid separator B, gas completes the separation of partial moisture herein, and the waste liquid isolated is discharged through automatic drain valve B Gas-liquid separator is also manually operable Manual draining valve B when automatic drain valve B failures and carries out urgent draining.By gas-liquid point From treated, partial desiccation gas enters adsorption tower by the shut-off valve D of unlatching, and the electric heater in adsorption tower is opens at this time State after the heated controller regulation and control of electric energy that accumulator was stored in a upper stage, is delivered to electric heater, to adsorption tower Interior adsorbent is heated, and is being heated under the double action of gas purging, adsorbent dehydrates, the moisture of abjection Adsorption tower is taken out of by gas and enters cooler A, is further cooled herein, then into gas-liquid separator A, gas Body completes the separation of moisture herein, and the waste liquid isolated is through automatic drain valve A drainage gas-liquid separators, when automatic drain valve A events Also Manual draining valve A is manually operable during barrier and carries out urgent draining.By gas-liquid separation, treated that dry gas enters dust Filter, after the dust impurities for further removing various grain sizes, by dry compressed gas outlet discharge this system, by flue Road is delivered to supply at gas equipment and use.
After adsorbent dehydrates, system is automatically into first stage, i.e. adsorbent water suction stage.
Wherein, the dischargeable capacity of adsorption tower is 230m3, the internal adsorbent filled is spherical activated alumina （Al2O3）, a diameter of 4 ~ 6mm, heap density is 0.80g/m3, specific surface area 340m2/ g, intensity are more than 130N/.
Wherein, thermoelectric converter is alkali metal thermo-electric conversion regime, and ranging from 105 ~ 900 DEG C of Acclimation temperature converts effect Rate can reach 40% or so, and continuous generating dutation can reach 14000 hours.
Wherein, the working pressure range of ultraviolet catalyzed oil expeller is 0.06 ~ 0.95MPa, dischargeable capacity 15m3, it is purple The operating voltage of outer optical generator is 35V, and power 100W, luminescent spectrum energy is focused primarily upon at 320nm wavelength, average Service life was up to 8000 hours.
By this system treated compressed air, moisture removal efficiency is up to 99.2%.
The advantage of the invention is that：
（1）Existing compression heat regeneration absorption drier needs at least two adsorption tower and Two-way Cycle gas circuit that could complete entirely Dehydration and drying and adsorbent reactivation process, and the Creative Design of this system makes it that 1 adsorption tower only be needed just to complete compression sky The dehydration and drying of gas and the regeneration overall process of adsorbent have good drying process effect, and have been reduced significantly equipment Volume and weight.
（2）This system employs advanced thermoelectric generation technology, and extra heat is converted to electric energy, greatly reduces and is System energy consumption.
（3）This system creativeness employs ultraviolet catalytic decomposition technique, can be thorough by mineral oil contained in gas Removal is decomposed, is effectively protected rear end equipment.
（4）This system employs double gas circuit periodic transformation formula plenum systems, and cooperation electrical heating method carries out again adsorbent Raw processing, can realize no air-loss, effectively save production cost, and can be provided for rear end gas equipment lasting, high-quality Gas supply.
Description of the drawings
Fig. 1 is the system structure diagram of the present invention.
In figure：1- compressed air inlets, 2- ultraviolet catalyzeds oil expeller, 3- adsorption towers, 4- thermoelectric converters, 5- electric power storages Pond, 6- heating controllers, 7- electric heaters, 8- external power supplys, 9- cooler A, 10- gas-liquid separator A, 11- coolers B, 12- Gas-liquid separator B, 13- dust filter unit, the outlet of 14- drying compressed airs, 15- shut-off valve A, 16- shut-off valve B, 17- shut-off valves C, 18- shut-off valves D, 19- automatic drain valves A, 20- Manual draining valves A, 21- automatic drain valve B, 22- Manual draining valves B
Fig. 2 is the schematic diagram of ultraviolet catalyzed oil expeller.
In figure：21- air intake valves, 22- stainless steels outer cover, 23- ultraviolet light generators, 24- tungstic acids catalysis net, 25- Fixing bracket, 26- electric control gears, 27- connecting wires, 28- drain taps.
Specific embodiment
As shown in Figure 1, in order to solve many deficiencies of the prior art, the present invention provides system, which includes pressure Contracting air intake 1, ultraviolet catalyzed oil expeller 2, adsorption tower 3, thermoelectric converter 4, accumulator 5, heating controller 6, electrical heating Device 7, cooler A9, gas-liquid separator A10, cooler B11, gas-liquid separator B12, dust filter unit 13, is done external power supply 8 Dry compressed gas outlet 14, shut-off valve A15, shut-off valve B16, shutoff valve C 17, shut-off valve D18, manually automatic drain valve A19, row Water valve A20, automatic drain valve B21, Manual draining valve B22 etc..Wherein, after gas enters this system by compressed air inlet 1, Ultraviolet catalyzed oil expeller 2 is initially entered, the gas path after its deoiling treatment is divided into A, B two-way, the connection mode on A roads For：Gas passes sequentially through shut-off valve A15, thermoelectric converter 4, shutoff valve C 17, eventually enters into adsorption tower 3；The connection mode on B roads For：Gas passes sequentially through shut-off valve B16, cooler B11, gas-liquid separator B12, shut-off valve D18, eventually enters into adsorption tower 3.Its In, compressed gas outlet gas flow path is all the way, gas passes sequentially through cooler A9, gas-liquid separator A10, dust filter unit 13, most 14 are exported by dry compressed gas to send out, be delivered at gas equipment eventually.Wherein, gas-liquid separator A10 and gas-liquid separator B12 It is respectively equipped with automatic drain valve A19, automatic drain valve B21 and Manual draining valve A20, Manual draining valve B22.Wherein, electric energy Transport path is：The electric energy that electric energy caused by thermoelectric converter 4 and external power supply 8 provide, stores into accumulator 5, and Heated controller 6 is conveyed to the electric heater 7 inside adsorption tower 3 after regulating and controlling.Wherein, outside ultraviolet catalyzed oil expeller 2 It covers for stainless steel, bottom and top are respectively equipped with air intake valve 21 and drain tap 28, are internally provided with 1 ultraviolet light Generator 23, and pass through 4 fixing brackets 25 and be individually fixed in equipment quadrangle, ultraviolet light generator 23 passes through two sections of connecting wires 27 are connected with the electric control gear 26 of device external, and 23 outside of ultraviolet light generator is enclosed with tungstic acid catalysis net 24.Contain ore deposit The compressed gas of object oil is by being located inside the entrance equipment of air intake valve 21 of 2 bottom of ultraviolet catalyzed oil expeller, and gas is with consolidating It is scheduled on the tungstic acid catalysis net 24 inside reaction unit to be in contact, at this point, the purple among tungstic acid catalysis net 24 Outer optical generator 23 is started to work under the regulation and control of electric control gear 26, ultraviolet light is emitted into whole equipment, when in ultraviolet waves Under long irradiation condition, the tungsten atom meeting Ultraviolet radiation absorbing in tungstic acid, low-lying level electrons are excited by light, and energy occurs Order transition, while corresponding hole is generated on original cost band, so as to generate a large amount of free radicals, and by the mineral oil component in gas Exhaustive oxidation cracks, and primary product is water vapour and carbon dioxide, and the compressed gas after deoiling treatment is through at the top of equipment Drain tap 28 discharge, into next treatment process.
The complete working period of this system is divided into following two stages：
（1）Adsorbent absorbs water the stage：In this stage, shut-off valve A15 and shutoff valve C 17 are opening, and shut-off valve B16 and Shut-off valve D18 is in off state.This system is entered by compressed air inlet 1 by gas compressor compressed gas, is passed through After the deoiling treatment of ultraviolet catalyzed oil expeller 2, thermoelectric converter 4 is entered by the shut-off valve A15 of unlatching, gas is herein by one Partial heat is converted to electric energy, and is stored in accumulator 5.Gas significant hypothermal after heat to electricity conversion, passes through unlatching Shutoff valve C 17 enters adsorption tower 3, and the electric heater 7 in adsorption tower 3 is in off state at this time, and gas is by the work in adsorption tower 3 After the dehydration of property alumina adsorbant, temperature and moisture are substantially reduced.Gas after adsorption treatment, from suction Attached tower 3 escapes and enter cooler A9, is further cooled herein, and then into gas-liquid separator A10, gas exists This completes the separation of moisture, and the waste liquid isolated is through automatic drain valve A19 drainage gas-liquid separators, when automatic drain valve A19 events Also Manual draining valve A20 is manually operable during barrier and carries out urgent draining.By gas-liquid separation, treated that dry gas enters powder After the dust impurities for further removing various grain sizes, 14 discharge this system are exported by dry compressed gas for dirt filter 13, by Gas piping is delivered to supply at gas equipment and use.
When adsorbent absorbs water close to saturation, system is automatically into second stage, i.e. adsorbent dehydration regeneration stage.
（2）The adsorbent dehydration regeneration stage：In this stage, shut-off valve B16 and shut-off valve D18 are opening, and are cut Only valve A15 and shutoff valve C 17 are in off state.This is entered by compressed air inlet 1 by the compressed gas of gas compressor System after the deoiling treatment of ultraviolet catalyzed oil expeller 2, enters cooler B11, herein by the shut-off valve B16 of unlatching It is tentatively cooled, then into gas-liquid separator B12, gas completes the separation of partial moisture herein, and that isolates is useless Liquid is also manually operable Manual draining valve through automatic drain valve B21 drainage gas-liquid separators when automatic drain valve B21 failures B22 carries out urgent draining.By gas-liquid separation, treated that partial desiccation gas enters adsorption tower 3 by the shut-off valve D18 of unlatching, At this time the electric heater 7 in adsorption tower 3 be opening, the heated control of electric energy that accumulator 5 was stored in a upper stage After device 6 regulates and controls, electric heater 7 is delivered to, the adsorbent in adsorption tower 3 is heated, purged in heating and gas dual Under effect, adsorbent dehydrates, and the moisture of abjection takes adsorption tower 3 out of by gas and enters cooler A9, carries out herein It further cools, then into gas-liquid separator A10, gas completes the separation of moisture herein, the waste liquid warp isolated Automatic drain valve A19 drainage gas-liquid separators, be also manually operable when automatic drain valve A19 failures Manual draining valve A20 into The urgent draining of row.By gas-liquid separation, treated that dry gas enters dust filter unit 13, further removes various grain sizes After dust impurities, 14 discharge this system are exported by dry compressed gas, being delivered to gas equipment supply by gas piping makes With.After adsorbent dehydrates, system is automatically into first stage, i.e. adsorbent water suction stage.Wherein, adsorption tower 2 has Effect volume is 230m3, the internal adsorbent filled is spherical activated alumina（Al2O3）, a diameter of 4 ~ 6mm, heap density is 0.80g/m3, specific surface area 340m2/ g, intensity are more than 130N/；Wherein, thermoelectric converter 3 is alkali metal thermo-electric conversion side Formula, ranging from 105 ~ 900 DEG C of Acclimation temperature, transfer efficiency can reach 40% or so, and it is small that continuous generating dutation can reach 14000 When；Wherein, the working pressure range of ultraviolet catalyzed oil expeller 2 is 0.06 ~ 0.95MPa, dischargeable capacity 15m3, ultraviolet light The operating voltage of generator 23 is 35V, power 100W, and luminescent spectrum energy focuses primarily upon at 320nm wavelength, averagely make With the service life up to 8000 hours.
By this system treated compressed air, moisture removal efficiency is up to 99.2%.

Claims (1)

1. a kind of zero gas consumption residual heat regenerating compressed air drying system, which is characterized in that the system includes compressed air inlet, purple Outside line catalysis oil expeller, adsorption tower, thermoelectric converter, accumulator, heating controller, electric heater, external power supply, cooler A, Gas-liquid separator A, cooler B, gas-liquid separator B, dust filter unit, the outlet of dry compressed gas and 5 sets of shut-off valve etc.； Wherein, gas enters ultraviolet catalyzed oil expeller by compressed air inlet, and the gas path after its deoiling treatment is divided into A, B two-way, the connection mode on A roads are：Gas passes sequentially through shut-off valve A, thermoelectric converter, shutoff valve C, eventually enters into absorption Tower；The connection mode on B roads is：Gas passes sequentially through shut-off valve B, cooler B, gas-liquid separator B, shut-off valve D, eventually enters into suction Attached tower；Wherein, compressed gas outlet gas flow path is all the way that gas passes sequentially through cooler A, gas-liquid separator A, dust filter unit, It is finally sent out, is delivered at gas equipment by dry compressed gas outlet；Wherein, gas-liquid separator A and gas-liquid separator B difference Equipped with automatic drain valve and Manual draining valve；Wherein, the transport path of electric energy is：Electric energy caused by thermoelectric converter and external The electric energy that power supply provides, the electricity being conveyed into accumulators store, and after the regulation and control of heated controller inside adsorption tower Heater；
The complete working period of this system is divided into following two stages：
（1）Adsorbent absorbs water the stage：In this stage, shut-off valve A and shutoff valve C are opening, and shut-off valve B and shut-off valve D is in off state, and enters this system by compressed air inlet by the compressed gas of gas compressor, by ultraviolet catalyzed After the deoiling treatment of oil expeller, thermoelectric converter is entered by the shut-off valve A of unlatching, gas is herein converted to a part of heat Electric energy, and be stored in accumulator, the gas significant hypothermal after heat to electricity conversion enters absorption by the shutoff valve C of unlatching Tower, at this time the electric heater in adsorption tower be in off state, dehydration of the gas by the activated alumina adsorbents in adsorption tower After effect, temperature and moisture are substantially reduced, and the gas after adsorption treatment escapes and enter cooler from adsorption tower A further cools herein, and then into gas-liquid separator A, gas completes the separation of moisture herein, and that isolates is useless Liquid is through automatic drain valve A drainage gas-liquid separators, and when automatic drain valve A failures, manual operation Manual draining valve A carries out urgent Draining, by gas-liquid separation, treated that dry gas enters dust filter unit, further removes the dust impurities of various grain sizes Afterwards, by dry compressed gas outlet discharge this system, gas equipment supply is delivered to by gas piping and is used；
（2）The adsorbent dehydration regeneration stage：When adsorbent absorbs water close to saturation, system is adsorbed automatically into second stage Agent dehydration regeneration stage, shut-off valve B and shut-off valve D are opening, and shut-off valve A and shutoff valve C are in off state, by gas The compressed gas of gas compressor enters this system by compressed air inlet, by the deoiling treatment of ultraviolet catalyzed oil expeller Afterwards, cooler B is entered by the shut-off valve B of unlatching, is tentatively cooled herein, then into gas-liquid separator B, gas The separation of partial moisture is completed herein, and the waste liquid isolated is through automatic drain valve B drainage gas-liquid separators, as automatic drain valve B Manual operation Manual draining valve B carries out urgent draining during failure, and by gas-liquid separation, treated that partial desiccation gas passes through unlatching Shut-off valve D enter adsorption tower, the electric heater in adsorption tower is opening at this time, and accumulator stored in a upper stage The regulation and control of electric energy heated controller after, be delivered to electric heater, the adsorbent in adsorption tower heated, it is gentle heating Under the double action of body purging, adsorbent dehydrates, and the moisture of abjection takes adsorption tower out of by gas and enters cooler A is further cooled herein, and then into gas-liquid separator A, gas is completed the separation of moisture, isolated herein Waste liquid through automatic drain valve A drainage gas-liquid separators, when automatic drain valve A failures, manual operation Manual draining valve A is carried out Urgent draining, by gas-liquid separation, treated that dry gas enters dust filter unit, further removes the dust of various grain sizes After impurity, by dry compressed gas outlet discharge this system, gas equipment supply is delivered to by gas piping and is used；Work as suction After attached dose of dehydration and drying, system is automatically into first stage, i.e. adsorbent water suction stage；
Ultraviolet catalyzed oil expeller bottom and top are respectively equipped with air intake valve and drain tap, are internally provided with 1 ultraviolet light Generator, and pass through 4 fixing brackets and be individually fixed in ultraviolet catalyzed oil expeller quadrangle, ultraviolet light generator passes through two sections of companies It connects conducting wire with the electric control gear outside ultraviolet catalyzed oil expeller to be connected, tungstic acid catalysis is enclosed on the outside of ultraviolet light generator Net, the compressed gas containing mineral oil enter ultraviolet catalyzed by being located at the air intake valve of ultraviolet catalyzed oil expeller bottom and remove Inside oily device, gas is in contact with the tungstic acid catalysis net being fixed on inside ultraviolet catalyzed oil expeller, is now placed in three Ultraviolet light generator among tungsten oxide catalysis net is started to work under the regulation and control of electric control gear, to entire ultraviolet catalyzed oil removing Emit ultraviolet light in device, when under ultraviolet wavelength irradiation condition, the tungsten atom meeting Ultraviolet radiation absorbing in tungstic acid is low Energy level electrons are excited by light, and energy level transition occurs, while corresponding hole is generated on original cost band, so as to generate it is a large amount of from It is cracked by base, and by the mineral oil component exhaustive oxidation in gas, primary product is water vapour and carbon dioxide, by de-oiling Compressed gas that treated is discharged through the drain tap at the top of ultraviolet catalyzed oil removing, into next treatment process；
Thermoelectric converter be alkali metal thermo-electric conversion regime, ranging from 105 ~ 900 DEG C of Acclimation temperature.
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