The clean air conditioner unit that Arid Area evaporative cooling is combined with mechanical refrigeration
Technical field
The utility model belongs to operation of air conditioning systems technical field, is specifically related to the clean air conditioner unit that a kind of evaporative cooling being applicable to Arid Area is combined with mechanical refrigeration.
Background technology
Very abundant regenerative resource-dry air energy is had in NORTHWEST CHINA Arid Area, but the toilet set up in these areas, clean room or higher place is required to air purity, simple use Evaporative Cooling Air Conditioning, although the effect of cooling can be reached, can not ensure to send into the cleanliness factor of air in application places and the precision of air-supply air-flow.
Existing take mechanical refrigeration as the clean air conditioner of low-temperature receiver, although the cleanliness factor of room air and comparatively stable indoor temperature and humidity can be ensured, but need to consume a large amount of high-grade electric energy to maintain the continuous service of air-conditioning, do not make full use of the natural cooling source of this area.
For the distinctive weather conditions in Arid Area, evaporation cooling technique is combined with mechanical refrigeration techniques and forms a kind of clean air conditioner, outdoor comparatively dry new wind is utilized to mix with return air, dehumidification treatments is carried out to return air, this clean air conditioner while providing enough colds to indoor, can significantly lower the energy consumption of clean air conditioner.
Utility model content
The purpose of this utility model is the clean air conditioner unit providing the evaporative cooling of a kind of Arid Area to combine with mechanical refrigeration, can when consuming lower electric energy for indoor provide the air compared with high-cleanness, high.
The technical scheme that the utility model adopts is, the clean air conditioner unit that Arid Area evaporative cooling is combined with mechanical refrigeration, include machine unit shell, the two side that machine unit shell is relative is respectively arranged with fresh wind port, air outlet, enter rear flow direction by new wind in machine unit shell and be disposed with new wind filter, composite refrigeration system and pressure fan, form wind mixed chamber between new wind filter and composite refrigeration system, machine unit shell roof corresponding above composite refrigeration system is provided with exhaust outlet.
Feature of the present utility model is also,
Overfire air fan is provided with in exhaust outlet.
The machine unit shell roof that wind mixed chamber is corresponding is provided with return air air port, and return air air port is connected with backwind tube; The bottom of wind mixed chamber is evenly provided with multiple secondary air-valve.
Return air is provided with return air filter in air port.
Composite refrigeration system is made up of tube type indirect evaporative cooler and mechanical refrigeration unit.
Mechanical refrigeration unit wherein, includes the air cooled condenser be arranged at above tube type indirect evaporative cooler, and air cooled condenser connects and composes closed-loop path with choke valve, compressor and direct-expansion-type evaporimeter successively.
Tube type indirect evaporative cooler wherein, include tube heat exchanging component, the top of tube heat exchanging component is provided with water-locator, the below of tube heat exchanging component is provided with circulating water pool, be respectively arranged with circulating water strainer and water circulating pump in circulating water pool, circulating water strainer is connected with water-locator by feed pipe with water circulating pump.
Tube heat exchanging component is made up of many horizontally disposed heat exchanger tubes; Water-locator is made up of water distributor and the nozzle that is evenly arranged at multiple downward spray on water distributor, and water distributor is connected with feed pipe.
Nozzle is high-pressure fine-spray nozzle or rotarytype injector.
Blower setting is on elasticity fan supporter.
The beneficial effects of the utility model are:
(1) clean air conditioner unit of the present utility model, its dehumidification process and in non-dependent traditional air conditioner evaporimeter subtract enthalpy dehumidification, but utilize the new wind of open-air seasoning to mix the object reaching dehumidifying with indoor return air, decrease mechanically refrigerated load, for indoor provide more new wind.
(2) clean air conditioner unit of the present utility model has all carried out filtration treatment to new wind and return air, guarantee that the mixed air of new return air can reach the requirement of place cleanliness factor, the recirculated water that simultaneously evaporative cooling can be made used only carries out hot and humid area with the air of cleaning, avoids the deterioration of water quality.
(3) secondary air-valve is provided with in the wind mixed chamber of clean air conditioner unit of the present utility model, mixed for part air is used as Secondary Air, can suitably change Secondary Air valve opening according to the humiture of mixing air, make the air quantity of a Secondary Air than more reasonable.
(4) blower setting in clean air conditioner unit of the present utility model, on elasticity fan supporter, can reduce the noise that fan vibration produces significantly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the clean air conditioner unit that the evaporative cooling of the utility model Arid Area is combined with mechanical refrigeration.
In figure, 1. new wind filter, 2. return air filter, 3. return air air port, 4. wind mixed chamber, 5. feed pipe, 6. water distributor, 7. air cooled condenser, 8. overfire air fan, 9. direct-expansion-type evaporimeter, 10. exhaust outlet, 11. nozzles, 12. machine unit shells, 13. pressure fan, 14. air outlets, 15. elasticity fan supporters, 16. compressors, 17. choke valves, 18. circulating water pools, 19. tube heat exchanging components, 20. circulating water strainers, 21. water circulating pumps, No. 22. 2 air-valves, 23. fresh wind ports.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The clean air conditioner unit that the evaporative cooling of the utility model Arid Area is combined with mechanical refrigeration, its structure as shown in Figure 1, include machine unit shell 12, the two side that machine unit shell 12 is relative is respectively arranged with fresh wind port 23, air outlet 14, enter rear flow direction by new wind in machine unit shell 12 and be disposed with new wind filter 1, composite refrigeration system and pressure fan 13, wind mixed chamber 4 is formed between new wind filter 1 and composite refrigeration system, new return air mixing in wind mixed chamber 4, new wind is return air dehumidifying; Machine unit shell roof corresponding above composite refrigeration system is provided with exhaust outlet 10.
Overfire air fan 8 is provided with in exhaust outlet 10.
The machine unit shell roof of wind mixed chamber 4 correspondence is provided with return air air port 3, and return air air port 3 is connected with backwind tube; Return air filter 2 is provided with in return air air port 3; The bottom of wind mixed chamber 4 is evenly provided with multiple secondary air-valve 22, and the object arranging secondary air-valve 22 is by regulating aperture for controlling a Secondary Air air quantity ratio of this air-conditioning.
Composite refrigeration system is made up of tube type indirect evaporative cooler and mechanical refrigeration unit.
Mechanical refrigeration unit, includes the air cooled condenser 7 be arranged at above tube type indirect evaporative cooler, and air cooled condenser 7 connects and composes closed-loop path with choke valve 17, compressor 16 and direct-expansion-type evaporimeter 9 successively by copper pipe.
Tube type indirect evaporative cooler, includes tube heat exchanging component 19, and tube heat exchanging component 19 is made up of many horizontally disposed heat exchanger tubes; The top of tube heat exchanging component 19 is provided with water-locator, the below of tube heat exchanging component 19 is provided with circulating water pool 18, be respectively arranged with circulating water strainer 20 and water circulating pump 21 in circulating water pool 18, circulating water strainer 20 is connected with water-locator by feed pipe 5 with water circulating pump 21.
Water-locator is made up of water distributor 6 and the nozzle 11 that is evenly arranged at multiple downward spray on water distributor 6, and water distributor 6 is connected with feed pipe 5.
Nozzle 11 is high-pressure fine-spray nozzle or rotarytype injector.
Heat exchanger tube in tube heat exchanging component 19 is metal tube, earthenware or pvc pipe.
Pressure fan 13 is arranged on elasticity fan supporter 15, can reduce the noise that fan vibration produces significantly.
The course of work of the clean air conditioner unit that the evaporative cooling of the utility model Arid Area is combined with mechanical refrigeration is as follows:
The fresh wind port 23 of outdoor new wind drying sucks in machine unit shell 12, first after new wind filter 1 filters, is mixed to form mixing air with the return air (filtering through return air filter 2) entered through return air air port 3 in machine unit shell 12 in wind mixed chamber 4;
Mixing air is divided into two parts, and a part is as First air, and another part is as Secondary Air, wherein, First air flows through the heat exchanger tube inside of tube heat exchanging component 19, after opening secondary air-valve 22, Secondary Air flows through outside many heat exchanger tubes of tube heat exchanging component 19 along secondary air-valve 22, recirculated water now in circulating water pool 18 pressurizes through water circulating pump 21, flow into after the purification of circulating water strainer 20 in feed pipe 5, be delivered in water distributor 6 by feed pipe 5, sprayed downwards by the multiple nozzles 11 on water distributor 6 and carry out hot and humid area to heat exchanger tube, the heat of the First air flowed through in Secondary Air absorption heat-exchange pipe afterwards, take away the condensation heat of air cooled condenser 7 again, last Secondary Air is discharged through exhaust outlet 10 under the effect of overfire air fan 8.
In above process, Secondary Air is for adding enthalpy humidification, and First air is etc. but clammy; Processed First air processes through direct-expansion-type evaporimeter 9, subtracts enthalpy dehumidification, then under the effect of pressure fan 13, sends into indoor by air outlet 14.
The clean air conditioner unit that the evaporative cooling of the utility model Arid Area is combined with mechanical refrigeration utilizes indirect evaporative cooling technology, precooled air, mechanically refrigerated refrigeration duty can be reduced, this process simultaneously also utilizing the new wind of Arid Area to mix with return air dehumidifies, decrease mechanically refrigerated except humidity load, reduce the consumption of electric energy, for indoor provide more fresh air.