CN105953323A - Heat recovery dry and wet two-stage filtering indirect-direct composite evaporative cooling fresh air handling unit - Google Patents

Heat recovery dry and wet two-stage filtering indirect-direct composite evaporative cooling fresh air handling unit Download PDF

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Publication number
CN105953323A
CN105953323A CN201610303996.2A CN201610303996A CN105953323A CN 105953323 A CN105953323 A CN 105953323A CN 201610303996 A CN201610303996 A CN 201610303996A CN 105953323 A CN105953323 A CN 105953323A
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CN
China
Prior art keywords
air
unit
water
dry
wet
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CN201610303996.2A
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Chinese (zh)
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CN105953323B (en
Inventor
黄翔
杨立然
王兴兴
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西安工程大学
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/147Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with both heat and humidity transfer between supplied and exhausted air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/117Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering

Abstract

The invention discloses a heat recovery dry-wet two-stage filtering indirect-direct composite evaporative cooling fresh air handling unit. The fresh air handling unit comprises a unit shell; an air intake/exhaust combined unit and an air supply unit are respectively arranged on two opposite side walls of the unit shell; a dry-wet two-stage air filtering-air exhausting combined system is arranged in the unit shell near the air intake/exhaust combined unit; an air supply unit is arranged in the unit shell near the air supply unit; and an all-heat heat recoverer, a layered water distribution type indirect evaporative cooler and a spray type direct evaporative cooler are arranged between the dry-wet two-stage air filtering-air exhausting combined system and the air supply unit in sequence. The heat recovery dry-wet two-stage air filtering indirect-direct composite evaporative cooling fresh air handling unit can perform dry-wet two-stage filtering on inlet air, improves the structure, material and water distribution mode of an indirect evaporative cooling heat exchanger, adds an energy recovery device, and adopts spray type direct evaporative cooling, thereby improving the quality of prepared fresh air and the energy-saving efficiency of the unit.

Description

Recovery type heat dry and wet double-filtration indirectly-direct combination evaporation cooling Fresh air handling units
Technical field
The invention belongs to air conditioner technical field, be specifically related to a kind of recovery type heat dry and wet two-stage Filter indirectly-direct combination evaporation cooling Fresh air handling units.
Background technology
At present, common Fresh air handling units is broadly divided into way flow, bidirectional flow and total heat exchanger Group three types.Wherein, way flow Fresh air handling units takes " forcing air draft, natural air inlet " side Formula.Bidirectional flow Fresh air handling units takes " forcing air draft, forced air supply " mode, and and way flow Fresh air handling units is compared and is added the filtration of new wind, correspondingly improves the quality of new wind, and full heat is returned Receiving Fresh air handling units is the suboptimization on the basis of bidirectional flow Fresh air handling units, new wind quality and energy-conservation Property is more preferably;But, in actual application, owing to being affected by many factors, it is still There are some problems, such as: air filtration is insufficient, heat regenerator blocking, clean difficulty with And the problem that newly wind quality is the highest.
In the face of people life, more requirements of production environment, air pollution are caused serious Consequence and the national strategy of energy-saving and emission-reduction, people need a kind of multiple functional, energy-conservation close friend Novel fresh air unit.
Evaporative Cooling Air Conditioning technology is using water as cooling medium, is carried out by moisture evaporation endothermic Cooling, in addition, this technology also has well filtration, purifies and humidification function.At present, This technology is widely used in NORTHWEST CHINA area and the southeastern coastal areas, and it is as one The friendly air-conditioning technical of kind healthy, economic, energy-conservation, low-carbon (LC) is also by known to increasing people.
Summary of the invention
It is an object of the invention to provide a kind of recovery type heat dry and wet double-filtration indirect-directly multiple Close evaporation cooling Fresh air handling units, air intake can be implemented dry and wet double-filtration, improve indirect evaporation cold But the structure of heat exchanger, material and water distribution manner, increases energy recycle device, uses atomizing Direct evaporating-cooling, is effectively increased the energy-saving efficiency of quality and the unit producing new wind.
The technical solution adopted in the present invention is, recovery type heat dry and wet double-filtration is indirect-direct Composite evaporation cooling Fresh air handling units, includes machine unit shell, on the two side that machine unit shell is relative It is respectively arranged with into-air draft associated units, blowing unit;Enter-air draft associated units is by up and down The new wind air inlet, the secondary wind exhaust outlet that arrange are constituted;Blowing unit is by least four air outlet Constitute;In machine unit shell near enter-air draft associated units at be provided with dry and wet two-stage air filtration- Air draft association system, is provided with air-supply unit, dry and wet two in machine unit shell at blowing unit It is disposed with complete hot recuperation of heat between level air filtration-air draft association system and air-supply unit Device, layering water-distributing indirect evaporation cooler and atomizing direct evaporative cooler.
The feature of the present invention also resides in:
Dry and wet two-stage air filtration-air draft association system is by dry and wet two-stage air set up and down Filtration system and secondary wind exhaust blower are constituted;Dry and wet two-stage air filtering system is near new wind air intake Arranging at Kou, secondary wind exhaust blower is arranged at secondary wind exhaust outlet.
Dry and wet two-stage air filtering system is imitated by as at the beginning of the pocket type that air-flow direction sets gradually Filter and atomizing filter element are constituted.
Atomizing filter element, includes the spraying set gradually by air-flow direction and forms list Unit and dash filler a, spraying forms the lower section of unit and dash filler a and is provided with cistern a, Spraying forms unit and is connected with cistern a.
Spraying forms unit, includes many vertical spraying feed pipes, and many vertical sprayings are supplied water Pipe was connected by communicating pipe, and communicating pipe is connected with cistern a by water pipe;Every vertical jetting Multiple atomizer a towards the spraying of pocket type roughing efficiency air filter it is evenly arranged with on mist feed pipe, It is additionally provided with water filter a on every vertical spraying feed pipe;Water pump a it is provided with on water pipe; Water pump a uses immersible pump.
Layering water-distributing indirect evaporation cooler, includes layering water-distributing heat-exchanger rig, layering Water-distributing heat-exchanger rig be provided above dash filler b, dash filler b and machine unit shell top Air flow channel is formed between wall;The lower section of layering water-distributing heat-exchanger rig is provided with cistern b, Cistern b is connected with layering water-distributing heat-exchanger rig by water main;Layering water-distributing heat exchange Secondary wind runner, the machine unit shell side that secondary wind runner is corresponding is formed between device and cistern b Secondary wind air inlet it is provided with on wall;Water pump b, water filtration it is respectively arranged with on water main Device b;Water pump b uses immersible pump.
Layering water-distributing plate pipe heat exchange unit, includes multiple band-tube type aluminium foil set up and down Heat exchanger, the top of each band-tube type aluminium foil heat exchanger is provided with spray thrower, and each spray Device is all connected with water main.
Band-tube type aluminium foil heat exchanger, includes band-tube type aluminium foil heat exchanger shell, band-tube type aluminium foil Being provided with central baffle in heat exchanger shell, central baffle is by whole band-tube type aluminium foil heat exchanger shell Internal it is separated into primary air runner in two plate pipes;Spray thrower by spray header and multiple uniformly The swirl nozzle being arranged on spray header and spray downwards is constituted.
Atomizing direct evaporative cooler, includes the spraying set gradually by air-flow direction Unit, dash filler c, the lower section of sprayer unit and dash filler c is provided with cistern c; Sprayer unit is connected with cistern c;Sprayer unit, includes many vertical spray pipes, many The vertical spray pipe of root is connected by connecting water pipe, and connecting water pipe is by spraying feed pipe and water-retention Pond c connects;It is evenly arranged with multiple indirect towards layering water-distributing on every vertical spray pipe The atomizer b of vapotron spraying, every vertical spray pipe also sets up water filter d;It is respectively arranged with water pump c, water filter c on spraying feed pipe;Water pump c is immersible pump.
Air-supply unit is made up of at least four pressure fan;All pressure fan are multiple lines and multiple rows arrangement; Equal fan housing all it is covered with on each air outlet.
The beneficial effects of the present invention is:
1) recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cools down new blower fan Group, air filter unit uses dry and wet two-stage air filtering system, improves primary air Filtration, purification degree so that the design of unit more optimizes;Through dry and wet two-stage air filtering system The primary air clean level filtered is high, thus reduces complete hot heat regenerator and band-tube type aluminum Pollution that paper tinsel heat exchanger causes or blocking, can purify air and also can improve the work of unit accordingly Performance;Additionally, the atomizing filter element in dry and wet two-stage air filtering system can also be to once Air plays certain pre-cooling and humidification function.
2) recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cools down new blower fan Group, it is internally provided with complete hot heat regenerator, the energy in recyclable secondary exhausting, makes unit More energy-conservation.
3) recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cools down new blower fan Group, uses band-tube type aluminium foil heat exchanger in its internal layering water-distributing indirect evaporation cooler, This heat exchanger heat exchange is preferably and cost is the highest;The arrangement of multiple band-tube type aluminium foil heat exchangers is adopted Take cross arrangement, in band-tube type aluminium foil heat exchanger, be provided with central baffle, support can be played and make More uniform with the primary air distribution that can also make in band-tube type aluminium foil heat exchanger, thus strengthening is changed Heat;Water distribution manner outside band-tube type aluminium foil heat exchanger uses swirl nozzle vertical demixing to drip pouring shape Formula, more uniformly, can make auxiliary air be fully contacted with water by water distribution under less pump consumes, improve Indirect evaporating-cooling efficiency.
4) recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cools down new wind Unit, its internal atomizing filter element and atomizing direct evaporative cooler structure are identical, The working condition of atomizer is adjustable.
5) recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cools down new wind Unit, blowing unit uses the form that multiple pressure fan are evenly arranged, increases stablizing of unit Property, can preferably tackle the situation of single pressure fan accidental damage, simultaneously in certain actual feelings Under condition, can not use or reduce use air duct blow.
6) recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cools down new wind Unit, the equal wind apparatus in air outlet uses equal fan housing to replace common equal style grid, structure letter Single durable and equal wind is respond well.
Accompanying drawing explanation
Fig. 1 be recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cooling is new The structural representation of blower fan group.
Fig. 2 be recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cooling is new The structural representation of band-tube type aluminium foil heat exchanger in blower fan group;
Fig. 3 be recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cooling is new The structural representation of blower fan group internal spraying unit;
Fig. 4 be recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cooling is new The structural representation of blowing unit in blower fan group.
In figure, 1. new wind air inlet, 2. pocket type roughing efficiency air filter, 3. cistern a, 4. water pump a, 5. atomizer a, 6. water filter a, 7. dash filler a, the most complete hot heat regenerator, 9. plate pipe Formula aluminium foil heat exchanger, 10. dash filler b, 11. swirl nozzles, 12. atomizer b, 13. gears Water packing c, 14. pressure fan, 15. equal fan housings, 16. secondary wind exhaust outlets, 17. secondary wind air drafts Machine, 18. cistern b, 19. secondary wind air inlets, 20. water pump b, 21. water filter b, 22. Cistern c, 23. water pump c, 24. water filter c, 25. water mains, 26. water filter d, 27. central baffle, primary air runner in 28. plate pipes, 29. vertical spray pipes, 30. connect water Pipe, 31. spraying feed pipes.
Detailed description of the invention
The present invention is described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
Recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cools down new blower fan Group, its structure is as it is shown in figure 1, include machine unit shell, on the two side that machine unit shell is relative It is respectively arranged with into-air draft associated units, blowing unit;Enter-air draft associated units is by up and down The new wind air inlet 1, the secondary wind exhaust outlet 16 that arrange are constituted;Blowing unit is by least four Air outlet is constituted;In machine unit shell near entering-air draft associated units to be provided with dry and wet two-stage empty Gas filtration-air draft association system, is provided with air-supply unit in machine unit shell at blowing unit, Full heat heat it is disposed with between dry and wet two-stage air filtration-air draft association system and air-supply unit Withdrawer 8, layering water-distributing indirect evaporation cooler and atomizing direct evaporative cooler.
Dry and wet two-stage air filtration-air draft association system is by dry and wet two-stage air set up and down Filtration system and secondary wind exhaust blower 17 are constituted;Dry and wet two-stage air filtering system is near new wind Arranging at air inlet 1, secondary wind exhaust blower 17 is arranged at secondary wind exhaust outlet 16.
Dry and wet two-stage air filtering system is imitated by as at the beginning of the pocket type that air-flow direction sets gradually Filter 2 and atomizing filter element are constituted.
Atomizing filter element, includes the spraying set gradually by air-flow direction and forms list Unit and dash filler a7, spraying forms the lower section of unit and dash filler a7 and is provided with cistern A3, spraying forms unit and is connected with cistern a3.
Spraying forms unit, includes many vertical spraying feed pipes, and many vertical sprayings are supplied water Pipe was connected by communicating pipe, and communicating pipe is connected with cistern a3 by water pipe;Every vertical Multiple atomization spray towards pocket type roughing efficiency air filter 2 spraying it is evenly arranged with on spraying feed pipe Mouth a5, every vertical spraying feed pipe is additionally provided with water filter a6;Arrange on water pipe There is water pump a4;Water pump a4 uses immersible pump.
Layering water-distributing indirect evaporation cooler, includes layering water-distributing heat-exchanger rig, layering Water-distributing heat-exchanger rig be provided above dash filler b10, dash filler b10 and unit shell Air flow channel is formed between body roof;The lower section of layering water-distributing heat-exchanger rig is provided with cistern B18, cistern b18 are connected with layering water-distributing heat-exchanger rig by water main 25;Layering Forming secondary wind runner between water-distributing heat-exchanger rig and cistern b18, secondary wind runner is corresponding Machine unit shell sidewall on be provided with secondary wind air inlet 19;It is respectively provided with on water main 25 There are water pump b 20, water filter b21.Water pump b 20 uses immersible pump.
It is provided with BAIYE in secondary wind air inlet 19.
Layering water-distributing plate pipe heat exchange unit, includes multiple band-tube type aluminium foil set up and down Heat exchanger 9, the top of each band-tube type aluminium foil heat exchanger 9 is provided with spray thrower, and each Spray thrower is all connected with water main 25.
Band-tube type aluminium foil heat exchanger 9, as in figure 2 it is shown, include band-tube type aluminium foil heat exchanger shell Body, is provided with central baffle 27 in band-tube type aluminium foil heat exchanger shell, central baffle 27 is by whole It is separated into primary air runner 28 in two plate pipes in individual band-tube type aluminium foil heat exchanger shell.
Spray thrower is by spray header and multiple is uniformly arranged on spray header and downward spray Swirl nozzle 11 is constituted.
Atomizing direct evaporative cooler, includes the spraying set gradually by air-flow direction Unit, dash filler c13, the lower section of sprayer unit and dash filler c13 is provided with cistern c22;Sprayer unit is connected with cistern c22.
Sprayer unit, as it is shown on figure 3, include many vertical spray pipes 29, many are stood Formula spray pipe 29 is connected by connecting water pipe 30, and connecting water pipe 30 is by spraying feed pipe 31 are connected with cistern c22;Be evenly arranged with on every vertical spray pipe 29 multiple towards The atomizer b12 of layering water-distributing indirect evaporation cooler spraying, every vertical spray pipe Water filter d26 is also set up on 29;Spraying feed pipe 31 on be respectively arranged with water pump c23, Water filter c24.Wherein, water pump c23 is immersible pump.
Air-supply unit is made up of at least four pressure fan 14;All pressure fan 14 is in multiple lines and multiple rows Arrangement.
As shown in Figure 4, each air outlet is all covered with equal fan housing 15.
Recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cooling Fresh air handling units The effect of middle critical piece is as follows:
(1) dry and wet two-stage air filtering system: filter through dry and wet two-stage air filtering system Primary air clean level is higher, thus reduces complete hot heat regenerator 8 and layering water-distributing Pollution that indirect evaporation cooler causes or blocking, can purify air and also can improve unit accordingly Service behaviour;Can also be to once empty additionally, use atomizing filter element to carry out wet filter Gas plays certain pre-cooling and humidification function.
(2) complete hot heat regenerator 8: can reclaim the energy in secondary exhausting, makes unit full While foot design requires, moreover it is possible to reach the purpose of energy-conservation, low-carbon (LC) and economy;Whole unit is tied Structure is compact, it is simple to maintenance management.
(3) layering water-distributing indirect evaporation cooler: its internal employing band-tube type aluminium foil heat exchange Device 9, band-tube type aluminium foil heat exchanger 9 heat exchange is preferably and cost is the highest;Its internal multiple plate pipes Formula aluminium foil heat exchanger 9 arrangement takes cross arrangement, arranges in band-tube type aluminium foil heat exchanger 9 There is central baffle 27, can also form primary air runner in plate pipe to playing a supporting role 28, in making band-tube type aluminium foil heat exchanger 9, primary air distribution is more uniform, thus enhanced heat exchange; Water distribution manner outside band-tube type aluminium foil heat exchanger 9 uses swirl nozzle 11 vertical demixing to drip pouring shape Formula, can less pump consume under water distribution more uniform so that auxiliary air is fully contacted with water, carries The high efficiency of cooling.
(4) spraying shape is all used in atomizing filter element and atomizing direct evaporative cooler Formula, atomizer a5 and atomizer b12 vertical demixing, level divide arrangement to be placed in vertical jetting On mist feed pipe, on vertical spray pipe 29, easy to operate, working condition is adjustable.
(5) air-supply unit be made up of at least four pressure fan 14, all of pressure fan 14 in It is uniformly arranged;The purpose arranging multiple pressure fan 14 is: increase the stability of unit, Can preferably tackle the situation of single pressure fan 14 accidental damage, simultaneously in certain actual feelings Under condition, capable of reducing using or do not use ajutage to blow.
(6) equal fan housing 15: be provided with equal fan housing 15 on each air outlet, use equal fan housing 15 replace common equal style grid, and simple in construction is durable, and equal wind is respond well.
Recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cools down new blower fan Group, its work process is specific as follows:
(1) primary air processing procedure:
As it is shown in figure 1, primary air enters in machine unit shell, through bag by new wind air inlet 1 After formula roughing efficiency air filter 2 carries out primary filter, then carried out two grades of mistakes by atomizing filter element Filter, it is achieved that while filtering, primary air is carried out a certain degree of pre-cooling and humidification, shape Become clean precooled air;
Clean precooled air enters in complete hot heat regenerator 8, with the secondary of indirect evaporating-cooling Air draft carries out hot and humid area, reclaims the energy in secondary exhausting, enters back into layering water-distributing afterwards Carry out in indirect evaporation cooler etc. clammy but, form cold air;
Cold air flows in atomizing direct evaporative cooler, with water smoke, hot wet friendship occurs further Changing, equal-enthalpy humidifying is lowered the temperature, after degree of saturation to be achieved under the effect of air-supply unit, through air-supply Unit is sent.
In above process, dash filler a7 and dash filler c13 can be to entrained by First air Water droplet filter, other large water droplet drop back into cistern a3, cistern c22, continue ginseng With circulation.
(2) auxiliary air processing procedure:
Auxiliary air enters in machine unit shell through secondary wind air inlet 19, auxiliary air from lower and Upper cross layering water-distributing heat-exchanger rig, and spray the shower water generation constant enthalpy got off from top to bottom The damp and hot exchange of moistening and lowering temperature, forms secondary cold air;
Secondary cold air enters after flowing upward to dash filler b10 in complete hot heat regenerator 8, Hot and humid area is carried out, finally through secondary under the effect of secondary wind exhaust blower 17 with primary air Wind exhaust blower 16 is discharged.
In said process, in layering water-distributing indirect evaporation cooler, the air in secondary runner is real Border is from the new wind of outdoor introducing by secondary wind air inlet 19.
Recovery type heat dry and wet double-filtration of the present invention indirectly-direct combination evaporation cools down new blower fan Group, is improved existing air conditioning unit interior air filter unit, uses dry and wet two-stage empty Gas filters, and wherein pocket type roughing efficiency air filter 2 is equivalent to dry filter unit, can be to primary air Carry out primary filter;Atomizing filter element uses the mode of wet filter, can imitate at the beginning of pocket type Filter 2 fail remove dust and harmful gas carry out further filtration, purification, simultaneously to one Secondary air precooling and humidification;Band-tube type aluminium foil is used to change in layering water-distributing indirect evaporation cooler Hot device 9, band-tube type aluminium foil heat exchanger 9 heat transfer effect is preferable and cost is relatively low;Each band-tube type Aluminium foil heat exchanger 9 is provided above swirl nozzle 11, and auxiliary air runner can be made at less pump The lower water distribution of consumption is more uniform, strengthens auxiliary air and the hot and humid area of water in this runner, thus carries High to the cooling capacity of primary air in band-tube type aluminium foil heat exchanger 9;Use complete hot heat regenerator 8, the energy in secondary exhausting can be reclaimed, improve capacity usage ratio;Atomizing is used directly to steam Send out cooler, it is to avoid some problems that material filling type direct evaporating-cooling exists, can reduce simultaneously Quantity of circulating water also improves the efficiency of direct evaporating-cooling accordingly.

Claims (10)

1. recovery type heat dry and wet double-filtration indirectly-direct combination evaporation cooling Fresh air handling units, it is special Levy and be, include machine unit shell, the two side that described machine unit shell is relative is respectively arranged with Enter-air draft associated units, blowing unit;Described enter-air draft associated units is by set up and down New wind air inlet (1), secondary wind exhaust outlet (16) are constituted;Described blowing unit is by least four Individual air outlet is constituted;In described machine unit shell near enter-air draft associated units at be provided with dry and wet Two-stage air filtration-air draft association system, is arranged in described machine unit shell at blowing unit There is air-supply unit, between described dry and wet two-stage air filtration-air draft association system and air-supply unit It is disposed with complete hot heat regenerator (8), layering water-distributing indirect evaporation cooler and atomizing Direct evaporative cooler.
Recovery type heat dry and wet double-filtration the most according to claim 1 indirectly-direct combination Evaporation cooling Fresh air handling units, it is characterised in that described dry and wet two-stage air filtration-air draft associating System is by dry and wet two-stage air filtering system set up and down and secondary wind exhaust blower (17) structure Become;
Described dry and wet two-stage air filtering system is arranged near new wind air inlet (1) place, described Secondary wind exhaust blower (17) is arranged near secondary wind exhaust outlet (16) place.
Recovery type heat dry and wet double-filtration the most according to claim 2 indirectly-direct combination Evaporation cooling Fresh air handling units, it is characterised in that described dry and wet two-stage air filtering system is by by sky Pocket type roughing efficiency air filter (2) and atomizing filter element that flow of air direction sets gradually are constituted.
Recovery type heat dry and wet double-filtration the most according to claim 3 indirectly-direct combination Evaporation cooling Fresh air handling units, it is characterised in that described atomizing filter element, includes by sky The spraying that flow of air direction sets gradually forms unit and dash filler a (7), described spraying shape The lower section becoming unit and dash filler a (7) is provided with cistern a (3), and described spraying is formed Unit is connected with cistern a (3).
Recovery type heat dry and wet double-filtration the most according to claim 4 indirectly-direct combination Evaporation cooling Fresh air handling units, it is characterised in that described spraying forms unit, includes many and stands Formula spraying feed pipe, described many vertical spraying feed pipes were connected by communicating pipe, described connection Pipe is connected with cistern a (3) by water pipe;
It is evenly arranged with multiple towards pocket type primarily efficient filter on every described vertical spraying feed pipe The atomizer a (5) that device (2) is sprayed, every described vertical spraying feed pipe also sets up There is water filter a (6);
Water pump a (4) it is provided with on described water pipe;Described water pump a (4) uses immersible pump.
Recovery type heat dry and wet double-filtration the most according to claim 1 indirectly-direct combination Evaporation cooling Fresh air handling units, it is characterised in that described layering water-distributing indirect evaporation cooler, Include layering water-distributing heat-exchanger rig, being provided above of described layering water-distributing heat-exchanger rig Dash filler b (10), forms sky between described dash filler b (10) and machine unit shell roof Flow channel;
The lower section of described layering water-distributing heat-exchanger rig is provided with cistern b (18), described storage Pond b (18) is connected with layering water-distributing heat-exchanger rig by water main (25);
Secondary wind runner is formed between described layering water-distributing heat-exchanger rig and cistern b (18), Secondary wind air inlet (19) it is provided with on the machine unit shell sidewall that described secondary wind runner is corresponding;
Water pump b (20), water filter b (21) it is respectively arranged with on described water main (25);
Described water pump b (20) uses immersible pump.
Recovery type heat dry and wet double-filtration the most according to claim 6 indirectly-direct combination Evaporation cooling Fresh air handling units, it is characterised in that described layering water-distributing plate pipe heat exchange unit, bag Multiple band-tube type aluminium foil heat exchanger (9) set up and down, each band-tube type aluminium foil heat exchange are included The top of device (9) is provided with spray thrower, and each spray thrower all with water main (25) Connect.
Recovery type heat dry and wet double-filtration the most according to claim 7 indirectly-direct combination Evaporation cooling Fresh air handling units, it is characterised in that described band-tube type aluminium foil heat exchanger (9), including There is band-tube type aluminium foil heat exchanger shell, in described band-tube type aluminium foil heat exchanger shell, be provided with central authorities Dividing plate (27), described central baffle (27) is by whole band-tube type aluminium foil heat exchanger shell point It is divided into primary air runner (28) in two plate pipes;
Described spray thrower is by spray header and multiple are uniformly arranged on spray header and spray downwards The swirl nozzle (11) drenched is constituted.
Recovery type heat dry and wet double-filtration the most according to claim 1 indirectly-direct combination Evaporation cooling Fresh air handling units, it is characterised in that described atomizing direct evaporative cooler, including There are sprayer unit, dash filler c (13) set gradually by air-flow direction, described spray The lower section of mist unit and dash filler c (13) is provided with cistern c (22);Described spraying is single Unit is connected with cistern c (22);
Described sprayer unit, includes many vertical spray pipes (29), described many vertical Spray pipe (29) is connected by connecting water pipe (30), and described connecting water pipe (30) passes through Spraying feed pipe (31) is connected with cistern c (22);Every vertical spray pipe (29) On be evenly arranged with multiple towards layering water-distributing indirect evaporation cooler spraying atomizer b (12), every vertical spray pipe (29) also sets up water filter d (26);Described spray Water pump c (23), water filter c (24) it is respectively arranged with on mist feed pipe (31);Described Water pump c (23) is immersible pump.
Recovery type heat dry and wet double-filtration the most according to claim 1 indirectly-direct combination Evaporation cooling Fresh air handling units, it is characterised in that described air-supply unit is by least four pressure fan (14) constitute;All pressure fan (14) arrange in multiple lines and multiple rows;
Equal fan housing (15) all it is covered with on each described air outlet.
CN201610303996.2A 2016-05-10 2016-05-10 Recovery type heat dry and wet double-filtration indirectly-the cooling Fresh air handling units of direct combination evaporation Expired - Fee Related CN105953323B (en)

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