CN103162362B - A kind of energy-saving water cooling air conditioner - Google Patents

A kind of energy-saving water cooling air conditioner Download PDF

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Publication number
CN103162362B
CN103162362B CN201310057643.5A CN201310057643A CN103162362B CN 103162362 B CN103162362 B CN 103162362B CN 201310057643 A CN201310057643 A CN 201310057643A CN 103162362 B CN103162362 B CN 103162362B
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water
pipeline
cooling
air conditioner
compressor
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CN103162362A (en
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颜怀略
杨春敏
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HUBEI HAOKE ENERGY-SAVING TECHNOLOGY Co Ltd
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HUBEI HAOKE ENERGY-SAVING TECHNOLOGY Co Ltd
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Abstract

Energy-saving water cooling air conditioner of the present invention is mainly made up of cooling tower part and equipment room part, they lay out in parallel, or cooling tower part is positioned at the top of equipment room part, described cooling tower part includes cooling tower, water distributor (22), water-locator (23), water-cooling sheet group (24), drip tray (25), heat exchanger (3), windscreen (29) and pipeline；Described cooling tower, its one end is contained in below heat exchanger (3) equipped with blower fan (28), windscreen (29) equipped with water leg (26), its top；Switch board (7), compressor (1), condenser (2), restricting element (5), vaporizer (4), fluid reservoir (6), medium water pump (20), cooling water pump (21) and multiple electrodynamic valve, check valve, pipeline it is provided with in described equipment room part.Present invention eliminates air-conditioning equipment machine room, save the interior space and cooling water pipeline is purchased, installed and the input cost of regular maintenance.

Description

A kind of energy-saving water cooling air conditioner
Technical field
The present invention relates to field of heating ventilation air conditioning, utilize recirculated cooling water to pass through the heat radiation of water-cooling sheet group when freezing particularly to one, when heating, utilize the air conditioner that heat pump principle heats.
Background technology
In existing HVAC technical field, in particular with the water-cooled central air-conditioning unit of cooling tower water circulation temperature lowering, during refrigeration, unit eer (COP value) is high, may be up to more than 5.0, but winter can not heat, need outer to power up, combustion gas, the heat supply such as coal-burning boiler.Wind-cooling type heat pump unit, although there is heat-production functions, but during refrigeration, Energy Efficiency Ratio (COP value) is relatively low, only about 3.0, it is unfavorable for energy-conserving and environment-protective.
Major part Water-cooling type air conditioner production firm is when publicizing unit eer at present, and the ratio between the cold and the input power that are only exported by main frame regards as the Energy Efficiency Ratio of this unit, and the most this algorithm exists mistaken ideas.The cold of its output of the most relatively advanced Water cooled air conditioners unit and the power ratio of input are attained by more than 5.0, but its comprehensive energy efficiency ratio is far from the highest.During because water-cooled central air-conditioning main frame runs, cooling water pump, medium water pump also must run simultaneously, then have to be by including the energy consumption calculation of water pump when calculating Energy Efficiency Ratio.Central air conditioner system is a more complicated system, and main frame only accounts for the sub-fraction of this air conditioning system, the HVAC system designer design selection of most equipment Architecture Design Institute to be leaned on.They often consider the factor such as the height of building and the putting position of cooling tower when pump selection, the surplus of cooling water pump, medium water pump output put is the biggest, the comprehensive energy efficiency ratio causing air conditioning system is substantially reduced, and some its comprehensive energy efficiencies of water-cooled central air-conditioning unit are than also can only achieve about 3.0.
The 30HXC130 water-cooled central air-conditioning unit that empty profit adjusts company to produce is opened in such as International Hotel, Yuanan (Yuanan County, Hubei) one (totally two 1 standby with 1) Shanghai, refrigerating capacity 464KW, compressor power input 98KW, Energy Efficiency Ratio 4.7.HVAC system designer when mounting design, the cooling water pump of selection be 45KW(totally 31 standby with 2), medium water pump 37KW(totally 31 standby with 2), according to calculating its comprehensive energy efficiency ratio only 2.6, cause substantial amounts of power consumption on water pump.Of this sort example also has a lot.
Summary of the invention
The technical problem to be solved is: provide a kind of energy-saving water cooling air conditioner, with the deficiency overcoming above-mentioned technology to exist.
The present invention solves its technical problem and uses following technical scheme:
The energy-saving water cooling air conditioner that the present invention provides, mainly it is made up of cooling tower part and equipment room part, cooling tower part is positioned at the top of equipment room part, or lay out in parallel, wherein: described cooling tower part includes cooling tower, water distributor, water-locator, water-cooling sheet group, drip tray, heat exchanger, windscreen and pipeline；Described cooling tower, one bottom portion is equipped with water leg, and its top is equipped with blower fan, and its side is provided with heat exchanger, heat exchanger be mounted below windscreen.Switch board, compressor, condenser, restricting element, vaporizer, medium water pump, cooling water pump and pipeline it is provided with in described equipment room part.
The energy-saving water cooling air conditioner that the present invention provides, it is provided with cooling water recirculation system, medium water circulation system, refrigerant loop and control system, wherein: in process of refrigerastion, utilize water cooling cold-producing medium, heating operations utilize cold-producing medium evaporation to absorb the heat in air；This air conditioner utilize the medium water as medium to indoor air conditioner input hot and cold amount, or utilize cold-producing medium as medium to indoor air conditioner input hot and cold amount.
Described cooling water recirculation system is mainly made up of with condenser, cooling tower cooling water pump, wherein: the outlet of cooling water pump is connected with the 2D end of condenser by pipeline, the 2C end of condenser is connected with water-locator by pipeline, water distributor, water-locator is connected with water-cooling sheet group, drip tray, drip tray is connected with water leg, and the outlet of water leg is connected with the water inlet of cooling water pump.
Described medium water circulation system can include medium water pump, condenser and vaporizer, wherein: the outlet of medium water pump is connected with the 4C end of vaporizer by pipeline, the 4D end of vaporizer is connected with the water inlet pipe towards indoor air conditioner by pipeline, the outlet pipe drawn by indoor air conditioner is connected with the water inlet of medium water pump, medium water circulation system during composition refrigeration mode；The outlet of medium water pump is connected with the 2D end of condenser also by pipeline, the 2C end of condenser is connected with the water inlet pipe towards indoor air conditioner by pipeline, the outlet pipe drawn by indoor air conditioner is connected with the water inlet of medium water pump, medium water circulation system during composition heating mode.
Described refrigerant loop is mainly made up of with condenser, restricting element, vaporizer, heat exchanger, multiple electrodynamic valve, multiple check valve compressor, wherein: the air vent of compressor is connected with the 2A end of condenser by pipeline, the 3rd electrodynamic valve, the 2B end of condenser is connected with restricting element by pipeline, restricting element is connected with the 4A end of vaporizer by pipeline, the 4th electrodynamic valve again, the 4B end of vaporizer is connected with the air entry of compressor by pipeline, thus forms the refrigerant circulation loop of a refrigeration mode；The air vent of compressor is connected with the 2A end of condenser also by pipeline, the 3rd electrodynamic valve, the 2B end of condenser is connected with restricting element by pipeline, restricting element is connected with the 3B end of heat exchanger by pipeline, the second check valve, the 3A end of heat exchanger is connected with the air entry of compressor by pipeline, the first electrodynamic valve, thus forms the refrigerant circulation loop of a heating mode.
Described control system is switch board, it is connected with compressor, medium water pump, cooling water pump, blower fan, windscreen, restricting element, multiple electrodynamic valve, multiple flow switch, multiple temperature sensor, multiple pressure transducer by wire, controls open and close or startup, the stopping of these parts.
When energy-saving water cooling air conditioner is provided with multiple refrigerant loop composition, the blower fan being arranged on cooling tower top also has multiple, arranges air-duct clapboard between the blower fan of each refrigerant loop, to prevent from occurring between the blower fan stopping and running string wind phenomenon.
The present invention can cancel the medium water pump in described medium water circulation system, vaporizer, flow switch, multiple electrodynamic valve, multiple temperature sensor, utilizes cold-producing medium to input hot and cold amount as medium to indoor air conditioner；In this refrigerant loop, the air vent of compressor is connected with the 19A end of cross valve by pipeline, the 19B end of cross valve is connected with the 2A end of condenser by pipeline, the 3rd electrodynamic valve, the 2B end of condenser is connected with restricting element by pipeline, restricting element is connected with indoor air conditioner by pipeline, indoor air conditioner is connected with the 19D end of cross valve, the 19C end of cross valve is connected with the 6A end of fluid reservoir by pipeline, the 6B end of fluid reservoir is connected with the air entry of compressor, thus forms the refrigerant circulation loop of a refrigeration mode；In this refrigerant loop, the air vent of compressor is connected with the 19A end of cross valve also by pipeline, the 19D end of cross valve is connected with indoor air conditioner by pipeline, indoor air conditioner is connected with the 3B end of heat exchanger by pipeline, restricting element, the 3A end of heat exchanger is connected with the 19B end of cross valve by pipeline, the second electrodynamic valve, the 19C end of cross valve is connected with the 6A end of fluid reservoir by pipeline, the 6B end of fluid reservoir is connected with the air entry of compressor, thus forms the refrigerant loop of a heating mode.
The energy-saving water cooling air conditioner that the present invention provides, it is possible to reduce heat exchanger, fluid reservoir, windscreen and dividing plate thereof, and multiple electrodynamic valve, check valve, thereby reduces heat-production functions, only refrigerating function.
The described energy-saving water cooling air conditioner only with refrigerating function, in its structure, it is positioned at the equipment room below cooling tower and can be provided with switch board, compressor, condenser, restricting element, vaporizer, medium water pump, cooling water pump and pipeline, wherein: the outlet of cooling water pump is connected with the 2D end of condenser by pipeline, the 2C end of condenser passes through pipeline, water distributor is connected with water-locator, water-locator and water-cooling sheet group, drip tray is connected, drip tray is connected with water leg, the outlet of water leg is connected with the water inlet of cooling water pump, composition cooling water recirculation system；The outlet of medium water pump is connected with the 4C end of vaporizer by pipeline, and the 4D end of vaporizer is connected with the water inlet pipe towards indoor air conditioner by pipeline, indoor air conditioner the outlet pipe drawn is connected with the water inlet of medium water pump, forms medium water circulation system；The air vent of compressor is connected with the 2A end of condenser by pipeline, the 2B end of condenser is connected with restricting element by pipeline, restricting element is connected with the 4A end of vaporizer by pipeline, and the 4B end of vaporizer is connected with the air entry of compressor by pipeline, forms refrigerant circulation loop；Switch board is connected with compressor, medium water pump, cooling water pump, blower fan, restricting element, multiple flow switch, multiple temperature sensor, multiple pressure transducer by wire, controls open and close or startup, the stopping of these parts.
The present invention compared with prior art has a following major advantage:
(1) add heat-production functions with traditional Water cooled air conditioners ratio, reduce equipment investment when filling at the beginning of air conditioning system.
This air conditioner discloses a kind of energy-saving water cooling air conditioner, is provided simultaneously with refrigeration and heat-production functions, and during refrigeration as traditional water-cooled air condictioner, cold-producing medium uses the mode of cooling tower water cooling to cool down, and the pressure at expulsion of compressor is low, and Energy Efficiency Ratio is high.Except that, this air conditioner has heat-production functions, after user selects this air conditioner, it is not necessary to select other air-conditioning heating equipments such as the electricity of low-energy-efficiency ratio, gas, coal burning boiler, greatly reduces equipment investment when just filling and the use cost in later stage.
(2) with traditional wind-cooling type heat pump air-conditioning ratio, Energy Efficiency Ratio is high, environmental protection and energy saving.
This air conditioner discloses a kind of energy-saving water cooling air conditioner, is a kind of air conditioner for both cooling and heating machine.It is known that Energy Efficiency Ratio during Water-cooling type air conditioner mechanism cold is higher than wind-cooling type heat pump air-conditioning, the Water-cooling type air conditioner unit such as U.S. sold in the market opens the brand water-cooling air conditioners such as profit, U.S. York, beautiful, Gree, and the Energy Efficiency Ratio of main frame is all more than 5.0.And the air conditioning unit refrigeration mode of wind-cooling type heat pump of above-mentioned brand is when running, using air-cooled cooling cold-producing medium, the pressure at expulsion of compressor is high, so Energy Efficiency Ratio is also the most relatively low, the Energy Efficiency Ratio of most of units only has about 3.0-3.6.Therefore, using water-cooling pattern cooling cold-producing medium during this air conditioner cooling in summer, its main frame Energy Efficiency Ratio is too up to more than 5.0, and owing to have employed main frame, water circulating pump unitary design, it is higher that comprehensive energy efficiency compares traditional air conditioner.
(3) integrated design, with traditional air conditioner ratio, comprehensive energy efficiency ratio is higher.
This air conditioner uses integrated design, and medium water-circulating pump, cooling water pump are all located at this device interior, and its power is all that professional and technical personnel measures design, without HVAC system designer design selection according to the refrigeration (hot) of this air conditioner.The air conditioning system of International Hotel, Yuanan as escribed above, if anthology is air conditioning unit, its cooling water pump power only needs 7.5KW, medium water pump the most only to need 11KW, so the comprehensive energy efficiency ratio of this air conditioning system is up to more than 4.0, is significantly larger than the comprehensive energy efficiency ratio of its existing air-conditioning 2.6.And cooling water pump can adjust frequency automatically according to the change of cold, when compressor unloading is shut down, cooling water pump can be out of service, and when compressor is again started up, water pump starts automatically, is substantially reduced energy consumption.
When outdoor temperature 35 degree, during cooling water temperature 35 degree, the parameter recorded when this air conditioner refrigeration runs by test is as follows: compressor power input 93KW, cooling water flow 100m3/ h, cooling water pump power 7.5KW, medium discharge 80m3/ h, medium pump power 11KW, refrigerating operaton one hour, create the cold of 479KW.Its nominal Energy Efficiency Ratio 5.15；Its comprehensive energy efficiency ratio 4.3.
When outdoor temperature 7 degree, the parameter recorded during this air conditioner heating operation by test is as follows: compressor power input 91KW, medium discharge 80m3/ h, medium pump power 11KW, heating operation one hour, create the heat of 329KW.Its nominal Energy Efficiency Ratio 3.62；Its comprehensive energy efficiency ratio 3.23.
By above experiment: this air conditioner Energy Efficiency Ratio when heating is suitable with traditional air conditioner, but to exceed more than 40% when refrigeration than traditional heat pump air conditioner Energy Efficiency Ratio, and comprehensive energy efficiency ratio is the highest.Such as the office building of 30000, the most about must cold 3600KW during cooling in summer, if selecting traditional heat pump air conditioner power consumption=3600 ÷ 3.6(COP value per hour)=1029KW, and select this energy-saving water cooling air conditioner, power consumption=3600 ÷ 5.15(COP value per hour during cooling in summer)=699KW, can economize on electricity per hour 329 degree, run every day 10 hours and can economize on electricity 3300 degree, often degree electricity is by business electricity price 1 yuan calculating, monthly can power cost saving 100,000 yuan, annual refrigerating operaton 5 months can power cost saving more than 500,000 yuan, therefore economic benefit is considerable.
(4) with traditional air conditioner ratio, save installation space and cooling water pipeline, reduce installation cost.
This air conditioner is arranged on outdoor, such as roof or vacant lot downstairs, use integrated design, medium water pump, cooling water pump are all located in this equipment, therefore with traditional Water cooled air conditioners ratio, eliminate air-conditioning equipment machine room, save the substantial amounts of interior space and cooling water pipeline is purchased, installed and the input cost of regular maintenance.
Selecting this air-conditioning to reduce construction cost about 10% after decreasing machine room according to measuring and calculating, save purchasing and installing of cooling water pipeline, then can reducing the construction costs about 20%, regular maintenance cost also can reduce in a large number.Therefore this air-conditioning is selected can to reduce total construction cost about more than 30%.
Accompanying drawing explanation
Fig. 1 is the structure perspective diagram of air conditioner embodiment 1 of the present invention and embodiment 2.
Fig. 2 is that air conditioner embodiment 1 refrigeration mode of the present invention runs, and cools down water, medium water, refrigerant flow direction figure.
Fig. 3 is that air conditioner embodiment 1 heating mode of the present invention runs, medium water, refrigerant flow direction figure.
Fig. 4 is that air conditioner embodiment 1 heating mode of the present invention runs, and defrost function on medium water, refrigerant flow direction figure.
Fig. 5 is that air conditioner embodiment 2 refrigeration mode of the present invention runs, but water water, refrigerant flow direction figure.
Fig. 6 is that air conditioner embodiment 2 heating mode of the present invention runs, refrigerant flow direction figure.
Fig. 7 is that air conditioner embodiment 2 heating mode of the present invention runs, refrigerant flow direction figure after defrosting function on.
Fig. 8 is the structure perspective diagram of air conditioner embodiment 3 of the present invention.
Fig. 9 is air conditioner embodiment 3 of the present invention when running, and cools down water, medium water, refrigerant flow direction figure.
Figure 10 is the theory diagram of control system for air conditioner of the present invention.
In figure: 1. compressor；2. condenser；3. heat exchanger；4. vaporizer；5. restricting element；6. fluid reservoir；7. switch board；8. the first electrodynamic valve；9. the second electrodynamic valve；10. the 3rd electrodynamic valve；11. the 4th electrodynamic valves；12. the 5th electrodynamic valves；13. the 6th electrodynamic valves；14. the 7th electrodynamic valves；15. the 8th electrodynamic valves；16. first check valves；17. second check valves；18. the 3rd check valves；19. cross valves；20. medium water pumps；21. cooling water pumps；22. water distributors；23. water-locators；24. water-cooling sheet groups；25. drip trays；26. water legs；27. air-duct clapboards；28. blower fans；29. windscreens；30. first temperature probes；31. second temperature probes；32. the 3rd temperature probes；33. the 4th temperature probes；34. the 5th temperature probes；35. first flow switches；36. second flow switches；37. first pressure probes；38. second pressure probes；39. indoor air conditioners.
Detailed description of the invention
The energy-saving water cooling air conditioner that the present invention provides, cooling tower water circulation cooling is utilized during its cooling in summer, Energy Efficiency Ratio is up to more than 5.0, medium water pump, cooling water pump are arranged in the equipment room below cooling tower, the height of putting position and building without considering cooling tower during pump selection, only need to be according to this air conditioner actual refrigeration (hot) amount type selecting, so the pump power that type selecting goes out can be substantially reduced than traditional central air-conditioning type selecting power, therefore comprehensive energy efficiency ratio is higher.
Below in conjunction with embodiment 1 and accompanying drawing, this air conditioner is described further, but is not limited to following described content.
Embodiment 1: the present embodiment provide a kind of energy-saving water cooling air conditioner, the water that utilizes the medium as medium to the hot and cold amount of indoor input.More energy-conservation than traditional air-cooled heat-pump air-conditioner more than 30%, its structure is as shown in Figure 1；Its operation logic is as shown in Figure 2, Figure 3, Figure 4；The theory diagram of its control system is as shown in Figure 10.
The energy-saving water cooling air conditioner that the present embodiment provides, is mainly made up of cooling tower part and equipment room part, be provided with the circulation of cooling water circulation, medium water, control, the big system of refrigerant loop four.Utilize the medium water as medium to the hot and cold amount of indoor input.Cooling in summer uses water cooling mode cooling cold-producing medium, utilizes winter heat pump operation principle to heat.Equipment room part, in the bottom (equipment room and cooling tower part can also lay out in parallel) of cooling tower part, is connected with wire by a plurality of pipeline between them.
Described cooling tower part is provided with water distributor 22, water-locator 23, water-cooling sheet group 24, drip tray 25, water leg 26, heat exchanger 3, blower fan 28, air-duct clapboard 27, windscreen 29 and section of tubing etc..Wherein: blower fan 28, water-locator 23 install the top of cooling tower；Water-cooling sheet group 24, drip tray 25, water leg 26 are arranged on the inside of cooling tower；Heat exchanger 3 is arranged on the lateral surface of cooling tower；Windscreen 29 is arranged on below heat exchanger 3.
Switch board 7, compressor 1, condenser 2, restricting element 5, vaporizer 4, fluid reservoir 6, medium water pump 20, cooling water pump 21 and multiple electrodynamic valve, check valve, pipeline etc. it are provided with in described equipment room part.Wherein: medium water pump 20, cooling water pump 21 are arranged in equipment room the one end near cooling tower bottom water leg 26；The compressor 1 of the condenser, vaporizer and installed on them that are mounted side by side is arranged on before medium water pump 20 and cooling water pump 21；Fluid reservoir 6 is arranged on the suction nozzle of compressor 1；Switch board 7 is arranged on the framed side wallboard of equipment room；Restricting element 5, multiple electrodynamic valve, multiple flow switch, multiple pressure switch, multiple temperature controller are arranged on the pipeline corresponding with their function.
Described cooling water recirculation system is provided with cooling water pump 21 and condenser 2, water distributor 22, water-locator 23, water-cooling sheet group 24, drip tray 25, water leg 26 etc..
Described medium water circulation system is provided with medium water pump 20, condenser 2, vaporizer 4, multiple electrodynamic valve, extends to the pipeline of indoor, indoor air conditioner 39 etc.；
Described refrigerant circulation loop is provided with compressor 1, condenser 2, restricting element 5, vaporizer 4, heat exchanger 3, fluid reservoir 6, multiple electrodynamic valve, multiple check valves etc..
In described control system, switch board 7 is the control centre of this air conditioner, it is connected with compressor 1, medium water pump 20, cooling water pump 21, blower fan 28, windscreen 29, restricting element 5, multiple electrodynamic valve, multiple flow switch, multiple temperature sensor, multiple pressure transducer by wire 7F, controls switch or startup, the stopping of these parts.
In described cooling water recirculation system, the outlet of cooling water pump 21 is connected with the 2D end of condenser 2 by pipeline, the first check valve 16,2C end is connected with water-locator 23 by pipeline, the 8th electrodynamic valve 15, water distributor 22, water-locator 23 is connected with water-cooling sheet group 24, drip tray 25, drip tray 25 is connected with water leg 26, and the outlet (the C point in Fig. 1) of water leg 26 is connected with the water inlet of cooling water pump 21.
In described medium water circulation system, the outlet of medium water pump 20 is connected with the 4C end of vaporizer 4 by pipeline, the 6th electrodynamic valve 13, the 4D end of vaporizer 4 is connected with indoor air conditioner 39 by pipeline, indoor air conditioner 39 is connected with the water inlet of medium water pump 20 by pipeline, thus medium water circulation system during one refrigeration mode of composition；
In described medium water circulation system, the outlet of medium water pump 20 is connected with the 2D end of condenser 2 also by pipeline, the 5th electrodynamic valve 12,2C end is connected with indoor air conditioner 39 by pipeline, the 7th electrodynamic valve 14, indoor air conditioner 39 is connected with the water inlet of medium water pump 20 by pipeline, thus medium water circulation system during one heating mode of composition；
In described refrigerant circulation loop, the air vent of compressor 1 is connected with the 2A end of condenser 2 by pipeline, electrodynamic valve 10, the 2B end of condenser 2 is connected with restricting element 5 by pipeline, restricting element 5 is connected with the 4A end of vaporizer 4 by pipeline, electrodynamic valve 11 again, the 4B end of vaporizer 4 is connected with the 6A end of fluid reservoir 6 by pipeline, 6B end is connected with the air entry of compressor 1, thus forms the refrigerant circulation loop of a refrigeration mode；
In described refrigerant circulation loop, the air vent of compressor 1 is connected with the 2A end of condenser 2 also by pipeline, electrodynamic valve 10, the 2B end of condenser 2 is connected with restricting element 5 by pipeline, restricting element 5 is connected with the 3B end of heat exchanger 3 by pipeline, the second check valve 17, the 3A end of heat exchanger 3 is connected with the 6A end of fluid reservoir 6 by pipeline, the first electrodynamic valve 8,6B end is connected with the air entry of compressor 1, thus forms the refrigerant circulation loop of a heating mode；
In described refrigerant circulation loop, the air vent of compressor 1 is connected with the 3B end of heat exchanger 3 also by pipeline, the second electrodynamic valve 9, the 3A end of heat exchanger 3 is connected with restricting element 5 by pipeline, the 3rd check valve 18, restricting element 5 is connected with the 4A end of vaporizer 4 by pipeline, the 4th electrodynamic valve 11 again, the 4B end of vaporizer 4 is connected with the 6A end of fluid reservoir 6 by pipeline, 6B end is connected with the air entry of compressor 1, thus refrigerant circulation loop during one heating mode defrosting function on of composition.
Described water-cooling sheet group 24 is made up of with the water-cooling sheet of convex-concave surface polylith, and they are arranged on the both sides of cooling tower, and the outside of water-cooling sheet group 24 is provided with heat exchanger 3, and they are provided with the louvre blade preventing from dabbling between 2..
Described water distributor 22, the supervisor being connected on cooling water pump 21 outlet the many arms being divided into form, and one end of arm is connected with house steward, and the other end is connected with water-locator 23.
Described water-locator 23, is that bottom has the most lacunary tank, cooling water pump 21 the cooling water sent here is injected after tank by water distributor, by the aperture bottom it uniformly by water distribution on the top of water-cooling sheet group 24, then flow in drip tray 25.
Described drip tray 25, is arranged on the bottom of water-cooling sheet, collects the cooling water after being cooled down by water-cooling sheet group 24.One end that this drip tray is connected with water leg 26 is relatively low, it is simple to cooled water quickly flows into water leg 26.
Described water leg 26 is arranged on one end of cooling tower, and its open interface cools down water for receiving from drip tray 25, its internally installed ball-cock assembly having automatic water supplement, and its underpart is provided with outlet C and is connected with the water inlet of cooling water pump 21 by pipeline.
Described blower fan 28 is arranged on the top of cooling tower, when this air conditioner is made up of multiple refrigerant loops, can arrange air-duct clapboard 27 between the blower fan of each refrigerant loop, to prevent from occurring between the blower fan stopping and running string wind phenomenon.
Described condenser 2 is arranged in equipment room, refrigeration mode run time, as High Temperature High Pressure gaseous refrigerant to cooling water release heat heat exchanger.Heat, the heat exchanger of heating medium water is discharged as high temperature and high pressure gaseous refrigerant to medium water when heating.
Described vaporizer 4, is arranged in equipment room, when refrigeration or defrosting mode run, as the heat exchanger of the liquid refrigerant evaporation absorption medium hydro-thermal amount of low-temp low-pressure.
Described heat exchanger 3, is arranged on the outside of cooling tower water-cooled groups of fins 24, when heating mode runs, absorbs the heat exchanger of heat in air as cold-producing medium evaporation；When defrosting mode runs, melt the heat exchanger of frost layer as cold-producing medium heat exchanger 3 copper pipe release heat.
Described restricting element 5, as during various mode operation according to condenser, evaporator pressure, the change of temperature, regulation controls the key element of refrigerant flow, and it can be the various ways such as thermal type, electronic type, float-valve type.
Described electrodynamic valve, different according to the medium of flowing in plant capacity, uninterrupted and valve body, the model of selection is the most different, and it can be electromagnetic valve, electric butterfly valve, electric two-way valve etc..
Described windscreen 29 is arranged on the bottom of heat exchanger 3, opens during refrigerating operaton, increases the ventilation of water-cooling sheet group 24.Close during heating operation, make outdoor air can only pass through the fin gap of heat exchanger 3.
Seeing Fig. 1, Fig. 2, Fig. 3, Fig. 4, Figure 10, A, B, C, D point corresponding with Fig. 2, Fig. 3, Fig. 4 respectively of A, B, C, D point in Fig. 1 is connected.The work process of the device that the present embodiment 1 provides is as follows:
(1) cooling water, medium water circulation system, refrigerant loop flow process when refrigeration mode runs:
As shown in Figure 2, when this air conditioner starts refrigeration mode operation, switch board 7 opens the 3rd electrodynamic valve the 10, the 4th electrodynamic valve the 11, the 6th electrodynamic valve the 13, the 8th electrodynamic valve 15, windscreen 29, closes first electrodynamic valve the 8, second electrodynamic valve the 9, the 5th electrodynamic valve the 12, the 7th electrodynamic valve 14.Refrigerant circulation loop, cooling water system, medium water circulation system form refrigeration mode path.
nullSwitch board 7 starts medium water pump 20、Cooling water pump 21，When first flow switch 35 being detected、After the discharge normal signal of second flow switch 36 feedback，Start compressor 1，The high temperature and high pressure gas that compressor 1 is discharged passes through pipeline、3rd electrodynamic valve 10、The 2A end of condenser 2 enters condenser 2，After carrying out heat exchange with the cooling water in condenser 2，Condensation forms the liquid refrigerant of High Temperature High Pressure，The 2B end of the most condensed device 2 enters restricting element 5 by pipeline，The liquid refrigerant of low-temp low-pressure is formed after throttling，Pass through pipeline again、4th electrodynamic valve 11、The 4A end of vaporizer 4 enters vaporizer 4，Heat exchange is carried out with the medium water in vaporizer 4，Liquid refrigerant evaporation forms the gaseous refrigerant of low-temp low-pressure，Entered the 6A end of fluid reservoir 6 again by pipeline by the 4B end of vaporizer 4，6B end through fluid reservoir 6 enters the air entry of compressor 1 again，It is consequently formed a refrigeration mode and runs refrigerant circulation loop.
After cooling water pump 21 starts, cooling water enters the 2D end of condenser 2 by pipeline, after carrying out heat exchange with the cold-producing medium in condenser, the 2C end through condenser 2 enters water-locator 23 by pipeline through the 8th electrodynamic valve 15, water distributor 22, flowed out by a lot of apertures of water-locator 23, it is dispersed in uniformly in water-cooling sheet group 24, fall again on drip tray 25 after its surface forms water membrane, eventually pass back to water leg 26, then entered the water inlet of cooling water pump 21 by pipeline.Switch board 7 is then according to the variations in temperature automatic start-stop blower fan 28 of cooling water, blower fan 28 start after the substantial amounts of air fin gap through heat exchanger 3 and the windscreen 29 of unlatching, quickly through the surface of groups of fins 24, accelerate the evaporation of moisture film, thus quickly reduce cooler-water temperature.It is consequently formed a cooling water recirculation system.
After medium water pump 20 starts, current enter vaporizer 4 by pipeline through the 4C end of the 6th electrodynamic valve 13, vaporizer 4, indoor air conditioner 39 is flowed into through 4D end by pipeline with after the cold-producing medium heat exchange in vaporizer 4, after carrying out heat exchange with room air, flowed to the water inlet of medium water pump 20 again by back of pipeline, be consequently formed medium water circulation system.
The capacity adjusting compressor 1 that temperature and pressure signal that switch board 7 feeds back according to first temperature probe the 30, second temperature probe the 31, the 3rd temperature probe the 32, the 4th temperature probe the 33, first pressure probe the 37, second pressure probe 38 is real-time, reaches to add, the purpose of off-load.Switch board 7 can also adjust the frequency of cooling water pump 21 according to the temperature signal of first temperature probe the 30, second temperature probe 31 feedback, reach energy-conservation purpose in real time.
(2) medium water circulation system, refrigerant loop flow process when heating mode runs:
As it is shown on figure 3, when this air conditioner starts heating mode, switch board 7 opens the first electrodynamic valve the 8, the 3rd electrodynamic valve the 10, the 5th electrodynamic valve the 12, the 7th electrodynamic valve 14.Close the second electrodynamic valve the 9, the 4th electrodynamic valve the 11, the 6th electrodynamic valve the 13, the 8th electrodynamic valve 15, windscreen 29.Cooling water recirculation system is closed, and medium water circulation system, refrigerant circuit systems form heating operation path.
nullSwitch board 7 starts medium water pump 20，When after the normal signal of discharge first flow switch 35 feedback being detected，Start compressor 1，The high temperature and high pressure gas that compressor 1 is discharged passes through pipeline、3rd electrodynamic valve 10、The 2A end of condenser 2 enters condenser 2，After carrying out heat exchange with the medium water in condenser 2，Condensation forms the liquid refrigerant of High Temperature High Pressure，The 2B end of the most condensed device 2 enters restricting element 5 by pipeline，The liquid refrigerant of low-temp low-pressure is formed after restricting element 5 throttles，Pass through pipeline、Second check valve 17、3B end entrance heat exchanger 3 through heat exchanger 3，Heat exchange is carried out by the effect of blower fan 28 and outdoor air，Evaporation forms the gaseous refrigerant of low-temp low-pressure，Pipeline is passed through through the 3A end of heat exchanger 3、First electrodynamic valve 8 enters the 6A of fluid reservoir 6、6B end，It is back to the air entry of compressor 1，What thus cold-producing medium formation one was complete heats closed circuit.
After medium water pump 20 starts, current enter condenser 2 by pipeline through the 2D end of the 5th electrodynamic valve 12, condenser 2, enter after indoor air conditioner 39 carries out heat exchange with room air through the 2C end of condenser 2, the 7th electrodynamic valve 14 after carrying out heat exchange with the cold-producing medium in condenser 2, it flow to medium water pump 20 by back of pipeline, be consequently formed a medium water circulation system.
(3) heating mode run time defrosting function on after medium water circulation system, refrigerant loop flow process:
As shown in Figure 4: when this air conditioner is in heating mode operation, if outdoor environment temperature is relatively low, after running a period of time, the surface of heat exchanger 3 can form one layer of frost, when frost layer reaches certain thickness, the signal that need to defrost is fed back to switch board 7 by the 5th temperature probe 34 being arranged on heat exchanger 3, and switch board 7 opens the second electrodynamic valve the 9, the 6th electrodynamic valve 13.Close the 3rd electrodynamic valve the 10, the 5th electrodynamic valve the 12, the 7th electrodynamic valve 14.Medium water enters the 4C end of vaporizer 4 through medium water pump 20 by pipeline, the 6th electrodynamic valve 13, after carrying out heat exchange with the cold-producing medium in vaporizer 4, through vaporizer 4 4D end by pipeline enter indoor air conditioner 39, return to medium water pump 20 by pipeline again, be consequently formed a defrosting state medium water circulation system.The high temperature and high pressure gaseous refrigerant that compressor 1 is discharged passes through pipeline, second electrodynamic valve 9, the 3B end of heat exchanger 3 enters heat exchanger 3, High Temperature High Pressure liquid cold-producing medium is formed after carrying out heat exchange with frost layer, pipeline is passed through through the 3A end of heat exchanger 3, 3rd check valve 18 forms the liquid refrigerant of low-temp low-pressure after entering restricting element 5 throttling, again through the 4th electrodynamic valve 11, the 4A end of vaporizer 4 enters vaporizer 4, after carrying out heat exchange with the water in vaporizer 4, 4B end through vaporizer 4, the 6A end of fluid reservoir 6 enters fluid reservoir 6, 6B end through fluid reservoir 6 enters the air entry of compressor 1 again, it is consequently formed a complete defrosting circulation.
When defrosting process completes, the 5th temperature probe 34 feeds back information to switch board 7, and switch board 7 opens the 3rd electrodynamic valve the 10, the 5th electrodynamic valve the 12, the 7th electrodynamic valve 14 immediately.Closing the second electrodynamic valve the 9, the 4th electrodynamic valve the 11, the 6th electrodynamic valve 13, this air conditioner returns to again heating operation mode refrigerant circulation loop.
(4) as shown in Figure 10, switch board 7 in control system is the control centre of this air conditioner, it is connected with the cooling water pump 21 in cooling water system, blower fan 28, windscreen the 29, the 8th electrodynamic valve 15 by wire 7F, according to temperature, the change of pressure, the real-time frequency adjusting cooling water pump 21 and blower fan 28, the open and close of windscreen the 29, the 8th electrodynamic valve 15；It is connected with medium water pump the 20, the 5th electrodynamic valve the 12, the 6th electrodynamic valve the 13, the 7th electrodynamic valve 14 in medium water system by wire 7F, in addition to controlling the open and close of medium water pump 20, always according to refrigeration, the open and close changing real-time adjustment the 5th electrodynamic valve the 12, the 6th electrodynamic valve the 13, the 7th electrodynamic valve 14 of heating mode；It is by wire 7F and the compressor 1 in refrigerant loop, restricting element 5, first electrodynamic valve 8, second electrodynamic valve 9, 3rd electrodynamic valve 10, 4th electrodynamic valve 11 and the first pressure probe 37, second pressure probe 38, first temperature probe 30, second temperature probe 31, 3rd temperature probe 32, 4th temperature probe 33, 5th temperature probe 34, first flow switch 35, second flow switch 36 is connected, according to multiple pressure probes, temperature probe, the load adjusting compressor 1 that the feedback information of flow switch is real-time and startup, stop, always according to refrigeration, heat, the change of defrosting mode adjusts opening of multiple electrodynamic valves, close.
(5) day-to-day operation process:
When user starts the operation of this air conditioner refrigeration, switch board 7 opens the 3rd electrodynamic valve the 10, the 4th electrodynamic valve the 11, the 6th electrodynamic valve the 13, the 8th electrodynamic valve 15, wind shelves 29, after simultaneously closing off first electrodynamic valve the 8, second electrodynamic valve the 9, the 5th electrodynamic valve the 12, the 7th electrodynamic valve 14, start cooling water pump 21, medium water pump 20.Switch board 7 starts compressor 1 after the discharge normal signal that first flow switch 35, second flow switch 36 feed back being detected, the high-temperature high-pressure refrigerant steam that compressor 1 is discharged enters condenser 2 and carries out heat exchange with cooling water, ceaselessly being operated by cooling water pump 21, the heat that compressor 1 compresses generation is discharged by water-locator 23, water-cooling sheet group 24, the effect of blower fan 28.The refrigerant vapour condensation of the High Temperature High Pressure entering condenser 2 forms High Temperature High Pressure liquid cold-producing medium, enter vaporizer 4 by restricting element 5 throttling and carry out heat exchange with medium water, ceaselessly operated by medium water pump 20, vaporizer 4 is evaporated produced cold and is delivered to indoor air conditioner 39, and carry out heat exchange by the effect of blower fan and room air.In vaporizer 4, the gaseous refrigerant of the low-temp low-pressure that evaporation is formed enters the air entry of compressor 1 by fluid reservoir 6, thus forms refrigerant circulation loop when refrigeration mode runs.Ceaselessly operated by compressor 1, cooling water pump 21, blower fan 28, medium water pump 20, indoor air conditioner 39, reach to regulate the purpose of indoor environment temperature.
When indoor temperature reduces, when medium coolant-temperature gage is down to design temperature, medium coolant-temperature gage signal into and out of vaporizer 4 is fed back to switch board 7 by three-temperature sensor the 32, the 4th temperature sensor 33, switch board 7 controls compressor 1 progressively off-load, after compressor 1 off-load, amount and the pressure of the cold-producing medium that compressor 1 is discharged have declined, and switch board 7 can also adjust the frequency of cooling water pump 21 according to the temperature that first pressure probe the 37, second pressure probe the 38, first temperature probe the 30, second temperature probe 31 etc. feeds back, pressure information.When medium water water temperature is down to below setting value, switch board 7 stops compressor 1 and runs, and when the exhaust port pressure of compressor 1 is down to the normal pressure of cold-producing medium, switch board 7 stops cooling water pump 21 and the operation of blower fan 28 immediately, reaches energy-conservation purpose.
After the 4th temperature probe 33 detects that medium water water temperature increases to over setting value, switch board 7 is again started up cooling water pump 21 and blower fan 28 runs, after normal for discharge signal is fed back to switch board 7 by first flow switch 35, switch board 7 starts compressor 1 and runs, and so goes round and begins again and guarantees that medium water water temperature is in set point all the time.
When user starts this air conditioner heating operation, cooling water recirculation system is out of service, and switch board 7 opens the first electrodynamic valve the 8, the 3rd electrodynamic valve the 10, the 5th electrodynamic valve the 12, the 7th electrodynamic valve 14.Close the second electrodynamic valve the 9, the 4th electrodynamic valve the 11, the 6th electrodynamic valve the 13, the 8th electrodynamic valve 15, windscreen 29.Start medium water pump 20, after switch board 7 detects the discharge normal signal of second flow switch 36 feedback, start compression 1 machine to run, the high temperature and high pressure gaseous refrigerant that compressor 1 is discharged enters condenser 2 and carries out heat exchange with medium water, ceaselessly operated by medium water pump 20, the heat of generation is delivered to indoor air conditioner 39, carries out heat exchange by the effect of blower fan and room air.The gaseous refrigerant condensation of High Temperature High Pressure forms the liquid refrigerant of High Temperature High Pressure, the liquid refrigerant of low-temp low-pressure is formed through restricting element 5 throttling, enter heat exchanger 3, heat exchange is carried out by the effect of blower fan 28 and outdoor air, the liquid refrigerant evaporation of low-temp low-pressure forms the gaseous refrigerant of low-temp low-pressure, returned to the air entry of compressor 1 by fluid reservoir 6, refrigerant loop is formed and heats closed circuit.
When indoor temperature raises, when medium coolant-temperature gage rises to design temperature, medium coolant-temperature gage signal is fed back to switch board 7 by the 4th temperature sensor 33, switch board 7 controls compressor 1 progressively off-load, after compressor 1 off-load, pressure at expulsion and the capacity of cold-producing medium all decrease, and the output of compressor also can reduce.When medium water water temperature rises to more than setting value, switch board 7 stops compressor 1 and runs, when the 4th temperature probe 33 detects that medium water water temperature reduces, after exceeding setting value, switch board 7 is again started up compressor 1 and runs, and so goes round and begins again and guarantees that medium water is in set point all the time.
When this air conditioner is in heating mode operation, if outdoor environment temperature is relatively low, after running a period of time, the surface of heat exchanger 3 can form one layer of frost, when frost layer reaches certain thickness, defrosting signal is fed back to switch board 7 by the 5th temperature probe 34, and switch board 7 opens the second electrodynamic valve the 9, the 4th electrodynamic valve the 11, the 6th electrodynamic valve 13.Close the first electrodynamic valve the 8, the 3rd electrodynamic valve the 10, the 5th electrodynamic valve the 12, the 7th electrodynamic valve 14.The high temperature and high pressure gaseous refrigerant that compressor 1 is discharged enters heat exchanger 3 and carries out heat exchange with frost layer, the frost layer on ablation heat exchanger 3 surface, form the liquid refrigerant of High Temperature High Pressure, the liquid refrigerant forming low-temp low-pressure by restricting element 5 after being throttled enters vaporizer 4, after carrying out heat exchange with medium water, the liquid refrigerant evaporation of low-temp low-pressure forms the gaseous refrigerant of low-temp low-pressure, compressor 1 is returned to through fluid reservoir 6, thus (defrosting process only lasts for the shortest time to form refrigerant circulation loop when a heating mode runs defrosting function on, medium coolant-temperature gage will not be caused the biggest impact).After defrosting process completes, switch board 7 opens the first electrodynamic valve the 8, the 3rd electrodynamic valve the 10, the 5th electrodynamic valve the 12, the 7th electrodynamic valve 14.Closing the second electrodynamic valve the 9, the 4th electrodynamic valve the 11, the 6th electrodynamic valve 13, this air conditioner proceeds to again normal heating operation mode and runs.
Embodiment 2: utilize cold-producing medium as medium to a kind of energy-saving water cooling air conditioner of the hot and cold amount of indoor input.
The air conditioner more energy-conservation than traditional air-cooled heat-pump air-conditioner more than 30% that the present embodiment provides, its structure is as it is shown in figure 1, its operation logic is as shown in Fig. 5, Fig. 6 Fig. 7.
The present invention is to provide a kind of energy-saving water cooling air conditioner, cooling in summer uses water cooling mode cooling cold-producing medium, utilizes winter heat pump operation principle to heat.Mainly being made up of cooling tower part and equipment room part, equipment room part, in the bottom (equipment room and cooling tower part can also lay out in parallel) of cooling tower part, is connected with wire by a plurality of pipeline between them.This air conditioner is provided with cooling water, control, refrigerant cycle three digest journals.Cooling tower part is same as in Example 1, and cooling water recirculation system is the most same as in Example 1, except that the present embodiment does not has medium water circulation system, utilizes cold-producing medium as medium to the hot and cold amount of indoor input.
Described cooling water recirculation system is same as in Example 1；
Switch board 7, compressor 1, condenser 2, restricting element 5, vaporizer 4, fluid reservoir 6, cross valve 19, cooling water pump 21 and multiple electrodynamic valve, check valve, pipeline etc. it are provided with in described equipment room part.Wherein: cooling water pump 21 is arranged close to one end of cooling tower bottom water leg 26；Condenser and compressor 1 are installed before cooling water pump 21；Cross valve 19 is arranged on the exhaustor of compressor 1, and fluid reservoir 6 is arranged on the suction nozzle of compressor 1；Switch board 7 is arranged on the framed side wallboard of equipment room；Restricting element 5, first flow switch 35, multiple electrodynamic valve, multiple pressure switch, multiple temperature controller are arranged on the pipeline corresponding with their function.
In described refrigerant circulation loop, it is provided with compressor 1, restricting element the 5, second electrodynamic valve 9, the 3rd electrodynamic valve 10, cross valve 19, indoor air conditioner 39, multiple electrodynamic valves etc.；
In described refrigerant circulation loop, the air vent of compressor 1 is connected with the 19A end of cross valve 19 by pipeline, the 19B end of cross valve 19 is connected with the 2A end of condenser 2 by pipeline, the 3rd electrodynamic valve 10, the 2B end of condenser 2 is connected with restricting element 5 by pipeline, restricting element 5 is connected with indoor air conditioner 39 by pipeline, indoor air conditioner 39 is connected with the 19D end of cross valve 19, and the 19C end of cross valve 19 is connected with the 6A end of fluid reservoir 6 by pipeline, and 6B end is connected with the air entry of compressor 1.Thus form the refrigerant circulation loop of a refrigeration mode；
In described refrigerant circulation loop, the air vent of compressor 1 is connected with the 19A end of cross valve 19 also by pipeline, the 19D end of cross valve 19 is connected with indoor air conditioner 39 by pipeline, indoor air conditioner 39 is connected with the 3B end of heat exchanger 3 by pipeline, restricting element 5, the 3A end of heat exchanger 3 is connected with the 19B end of cross valve 19 by pipeline, the second electrodynamic valve 9, the 19C end of cross valve 19 is connected with the 6A end of fluid reservoir 6 by pipeline, 6B end is connected with the air entry of compressor 1, thus forms the refrigerant circulation loop of a heating mode.
In described refrigerant circulation loop, the air vent of compressor 1 is connected with the 19A end of cross valve 19 also by pipeline, the 19B end of cross valve 19 is connected with the 3A end of heat exchanger 3 by pipeline, the second electrodynamic valve 9, the 3B end of heat exchanger 3 is connected with restricting element 5 by pipeline, restricting element 5 is connected with indoor air conditioner 39 by pipeline, indoor air conditioner 39 is connected with the 19D end of cross valve 19, the 19C end of cross valve 19 is connected with the 6A end of fluid reservoir 6 by pipeline, and 6B end is connected with the air entry of compressor 1.Thus refrigerant circulation loop during one heating mode defrosting function on of composition；
Described control system i.e. switch board 7 is the control centre of this air conditioner, it is connected with compressor 1, restricting element the 5, second electrodynamic valve the 9, the 3rd electrodynamic valve 10, cross valve 19, cooling water pump 21, blower fan 28, windscreen 29, first flow switch 35, multiple electrodynamic valve, multiple temperature sensor, multiple pressure transducer by wire 7F, control open and close or startup, the stopping of these parts, thus form the control system of this air conditioner.
Seeing Fig. 1 and Fig. 5, Fig. 6, Fig. 7, Figure 10, A, B, C, D point corresponding with Fig. 5, Fig. 6, Fig. 7 respectively of A, B, C, D point in Fig. 1 is connected.The work process of the air conditioner that the present embodiment 2 provides is as follows:
(1) cooling water, refrigerant loop flow process when refrigeration mode runs:
As it is shown in figure 5, when this air conditioner starts refrigeration mode operation, switch board 7 is opened the 3rd electrodynamic valve 10, windscreen 29, is closed the second electrodynamic valve 9, and cross valve 19 is in power failure state, 19A Yu 19B turns on, 19D Yu 19C turns on.Cooling water system, refrigerant circulation loop form path.
Cooling water recirculation system is identical with embodiment 1 refrigeration mode.
nullSwitch board 7 starts cooling water pump 21，When after the normal signal of discharge first flow switch 35 feedback being detected，Start compressor 1，The high temperature and high pressure gaseous refrigerant that compressor 1 is discharged is entered after the 19A end of cross valve 19 through the 19B end of cross valve 19 by the 3rd electrodynamic valve 10 by pipeline、The 2A end of condenser 2 enters condenser 2，After carrying out heat exchange with the cooling water in condenser 2，Condensation forms the liquid refrigerant of High Temperature High Pressure，The 2B end of the most condensed device 2 enters restricting element 5 by pipeline，The liquid refrigerant forming low-temp low-pressure after throttling enters indoor air conditioner 39 by pipeline，After carrying out heat exchange by the effect of blower fan and room air，Liquid refrigerant evaporation forms the gaseous refrigerant of low-temp low-pressure，Again by pipeline enter cross valve 19 19D end after through cross valve 19 19C end enter fluid reservoir 6 6A end，The air entry of compressor 1 is entered again through 6B end，It is consequently formed a refrigeration mode and runs refrigerant circulation loop.
(2) refrigerant loop flow process when heating mode runs:
As shown in Figure 6, when this air conditioner starts heating mode operation, cooling water system is out of service.Switch board 7 opens the second electrodynamic valve 9, closes the 3rd electrodynamic valve 10, windscreen 29, and cross valve 19 powers on, 19A Yu 19D turns on, 19C Yu 19B turns on, and refrigerant circuit systems forms heating operation path.
nullSwitch board 7 starts compressor 1，The high-temperature high-pressure refrigerant steam that compressor 1 is discharged passes through pipeline、After the 19A end of cross valve 19, the 19D end through cross valve 19 enters indoor air conditioner 39 by pipeline，Heat exchange is carried out by the effect of blower fan and room air，Form the liquid refrigerant of High Temperature High Pressure，Restricting element 5 is entered again by pipeline，The liquid refrigerant of low-temp low-pressure is formed after restricting element 5 throttles，Heat exchanger 3 is entered through the 3B end of heat exchanger 3 by pipeline，Heat exchange is carried out by the effect of blower fan 28 and outdoor air，Evaporation forms the gaseous refrigerant of low-temp low-pressure，Pipeline is passed through through 3A end、Second electrodynamic valve 9 enters the 6A end of fluid reservoir 6 through the 19C end of cross valve 19 after entering the 19B end of cross valve 19，6B end through fluid reservoir 6 enters the air entry of compressor 1 again，It is consequently formed a heating mode and runs refrigerant circulation loop.
(3) when heating operation mode runs after defrosting function on, the flow process of refrigerant loop:
As shown in Figure 7: when this air conditioner is in heating mode operation, if outdoor environment temperature is relatively low, after running a period of time, the surface of heat exchanger 3 can form one layer of frost, when frost layer reaches certain thickness, the information that need to defrost is fed back to switch board 7 by the 5th temperature probe 34, the blower fan that switch board 7 controls indoor air conditioner 39 is out of service, cross valve 19 power-off, 19A Yu 19B turns on, 19D Yu 19C turns on, and refrigerant circuit systems forms Defrost operation path.nullThe high-temperature high-pressure refrigerant steam that compressor 1 is discharged passes through pipeline、Through the 19B end of cross valve 19 after the 19A end of cross valve 19、Second electrodynamic valve 9、The 3B end of heat exchanger 3 enters heat exchanger 3，High Temperature High Pressure liquid cold-producing medium is formed after carrying out heat exchange with frost layer，Through heat exchanger 3 3A end by pipeline enter restricting element 5 throttling formed low-temp low-pressure liquid refrigerant，Enter indoor air conditioner 39(by pipeline and be in halted state so to room will not be taken cold due to the blower fan of now indoor air conditioner 39)，Liquid refrigerant evaporation forms the gaseous refrigerant of low-temp low-pressure，Again by pipeline enter cross valve 19 19D end after through cross valve 19 19C end enter fluid reservoir 6 6A end，The air entry of compressor 1 is entered again through 6B end，Refrigerant circulation loop when being consequently formed a complete defrosting function on.When defrosting process completes, the 5th temperature probe 34 feeds back information to switch board 7, and switch board 7 powers on to immediately cross valve 19, returns to heat circular flow pattern.
(4) control principle of the control system of this air conditioner is same as in Example 1, is only the reduction of the section components of chilled-water system, adds the control to cross valve 19, adjust refrigeration, heat, the change of defrosting mode.
(5) day-to-day operation process:
When user starts the operation of this air conditioner refrigeration, switch board 7 opens the 3rd electrodynamic valve 10, wind shelves 29, close the second electrodynamic valve 9, the power supply of cross valve 19 is off, start cooling water pump 21, after switch board 7 detects the discharge normal signal of first flow switch 35 feedback, start compressor 1, the high-temperature high-pressure refrigerant steam that compressor 1 is discharged enters condenser 2 by cross valve 19 and carries out heat exchange with cooling water, ceaselessly operated by cooling water pump 21, by the heat of generation by the water-locator 23 being arranged on cooling tower, water-cooling sheet group 24, the effect of blower fan 28 is discharged.The refrigerant vapour condensation of High Temperature High Pressure forms High Temperature High Pressure liquid cold-producing medium, indoor air conditioner 39 is entered by restricting element 5 throttling, and carry out heat exchange by the effect of blower fan and room air, evaporation forms the gaseous refrigerant of low-temp low-pressure, entered the air entry of compressor 1 by cross valve 19, fluid reservoir 6, thus form chiller refrigeration blood circulation.Ceaselessly operated by compressor 1, cooling water pump 21, blower fan 28, indoor air conditioner 39, reach to regulate the purpose of indoor environment temperature.
When indoor temperature is reduced to design temperature, switch board 7 controls compressor 1 progressively off-load, after compressor 1 off-load, pressure at expulsion and the capacity of cold-producing medium all decrease, and switch board 7 can also adjust the frequency of cooling water pump 21 according to the temperature that first pressure probe the 37, second pressure probe the 38, first temperature probe the 30, second temperature probe 31 etc. feeds back, pressure information.When indoor temperature is down to below setting value, switch board 7 stops compressor 1 and runs, and when compressor 1 exhaust port pressure is down to the normal pressure of cold-producing medium, switch board 7 stops cooling water pump 21 and the operation of blower fan 28 immediately, reaches energy-conservation purpose.
After indoor temperature increases to over setting value, switch board 7 is again started up cooling water pump 21 and blower fan 28 runs, after normal for discharge signal is fed back to switch board 7 by first flow switch 35, switch board 7 starts compressor 1 and runs, and so goes round and begins again and guarantees that indoor temperature is in set point.
When user starts this air conditioner heating operation, cooling water recirculation system is out of service, and switch board 7 opens the second electrodynamic valve 9, closes the 3rd electrodynamic valve 10, windscreen 29, controls cross valve 19 and powers on, 19A Yu 19D turns on, 19B Yu 19C turns on.Switch board 7 starts compressor 1 and runs, and the high temperature and high pressure gaseous refrigerant that compressor 1 is discharged enters indoor air conditioner 39, carries out heat exchange by the effect of blower fan and room air.The gaseous refrigerant condensation of High Temperature High Pressure forms the liquid refrigerant of High Temperature High Pressure, the liquid refrigerant of low-temp low-pressure is formed through restricting element 5 throttling, enter heat exchanger 3, heat exchange is carried out by the effect of blower fan 28 and outdoor air, the liquid refrigerant evaporation of low-temp low-pressure forms the gaseous refrigerant of low-temp low-pressure, returned to the air entry of compressor 1 by cross valve 19, fluid reservoir 6, refrigerant loop is formed and heats closed circuit.
When indoor temperature is increased to design temperature, switch board 7 controls compressor 1 progressively off-load, and after compressor 1 off-load, pressure at expulsion and the capacity of cold-producing medium all decrease, and the output of compressor also can reduce.When indoor temperature rises to more than setting value, switch board 7 stops compressor 1 and runs.After indoor temperature decreases beyond setting value, switch board 7 is again started up compressor 1 and runs, and so goes round and begins again and guarantees that indoor temperature is in set point all the time.
nullWhen this air conditioner is in heating mode operation，If outdoor environment temperature is relatively low，After running a period of time，The surface of heat exchanger 3 can form one layer of frost，When frost layer reaches certain thickness，Defrosting signal is fed back to switch board 7 by the 5th temperature probe 34，Switch board 7 disconnects the power supply of cross valve 19，The blower fan of indoor air conditioner 39 is out of service，The high temperature and high pressure gaseous refrigerant that compressor 1 is discharged enters heat exchanger 3 and carries out heat exchange with frost layer，The frost layer on ablation heat exchanger 3 surface，Cold-producing medium condensation forms the liquid refrigerant of High Temperature High Pressure，The liquid refrigerant forming low-temp low-pressure by restricting element 5 after being throttled enters indoor air conditioner 39，The liquid refrigerant evaporation of low-temp low-pressure forms the gaseous refrigerant of low-temp low-pressure，Through cross valve 19、Fluid reservoir 6 returns to compressor 1，Thus (defrosting process only lasts for time a few minutes to form refrigerant circulation loop when a heating mode runs defrosting function on，Indoor temperature will not be caused the biggest impact).After defrosting process completes, switch board 7 controls each parts, and this air conditioner proceeds to again normal heating operation mode and runs.
Embodiment 3: cooling tower and refrigeration host computer effectively combine, the cold air conditioner of integral type list of composition.
The air conditioner that the present embodiment provides is higher than traditional water-cooled central air-conditioning machine comprehensive energy efficiency ratio, can save equipment initial investment about more than 30%, and can save substantial amounts of equipment place.As shown in Figure 8, its operation logic is as shown in Figure 9 for its structure.
The present embodiment provides cooling tower and refrigeration host computer effectively combines, and integral type list this air conditioner of cold air conditioner of composition is mainly made up of cooling tower part and equipment room part, is provided with the circulation of cooling water circulation, medium water, the big system of refrigerant loop.It is applicable to need not the occasion of air-conditioning heating.Equipment room part, in the bottom of cooling tower part, is connected with wire by a plurality of pipeline between them.
Described cooling tower part is provided with water distributor 22, water-locator 23, water-cooling sheet group 24, drip tray 25, water leg 26, blower fan 28 etc.；Wherein: blower fan 28, water-locator 23 are arranged on the top of cooling tower, water-cooling sheet group 24 is arranged on the side of cooling tower, and drip tray 25, water leg 26 are arranged on the inside of cooling tower.
Switch board 7, compressor 1, condenser 2, restricting element 5, vaporizer 4, fluid reservoir 6, medium water pump 20, cooling water pump 21, pipeline etc. it are provided with in described equipment room part.Wherein: medium water pump 20, cooling water pump 21 are arranged close to one end of cooling tower bottom water leg 26；It is the compressor 1 of the condenser, vaporizer and installed on them that are mounted side by side afterwards；Fluid reservoir 6 is arranged on the suction nozzle of compressor 1；Switch board 7 is arranged on the framed side wallboard of equipment room；Restricting element 5, multiple flow switch, multiple pressure switch, multiple temperature controller are arranged on the pipeline corresponding with their function.
Described cooling water recirculation system is provided with cooling water pump 21 and condenser 2, water distributor 22, water-locator 23, water-cooling sheet group 24, drip tray 25, water leg 26 etc.；
Described medium water circulation system is provided with medium water pump 20, vaporizer 4, extends to indoor water-in and water-out pipeline etc.；
Described refrigerant circulation loop is provided with compressor 1, condenser 2, restricting element 5, vaporizer 4, fluid reservoir 6 etc.；
Described control system i.e. switch board 7 is the control centre of this air conditioner, it is connected with compressor 1, medium water pump 20, cooling water pump 21, blower fan 28, restricting element 5, multiple flow switch, multiple temperature sensor, multiple pressure transducer by wire 7F, controls open and close or startup, the stopping of these parts.
In described cooling water recirculation system, the outlet of cooling water pump 21 is connected with the 2D end of condenser 2 by pipeline, 2C end is connected with water-locator 23 by pipeline, water distributor 22, water-locator 23 is connected with water-cooling sheet group 24, drip tray 25, drip tray 25 is connected with water leg 26, the outlet (the C point in Fig. 1) of water leg 26 is connected with the water inlet of cooling water pump 21, thus forms cooling water recirculation system.
In described medium water circulation system, the outlet of medium water pump 20 is connected with the 4C end of vaporizer 4 by pipeline, the 4D end of vaporizer 4 is connected with the air-conditioning water inlet pipe extending to indoor, indoor the air-conditioner water outlet pipe drawn is connected with the water inlet of medium water pump 20, thus composition medium water circulation system；
Described refrigerant circulation loop, the air vent of compressor 1 is connected with the 2A end of condenser 2 by pipeline, the 2B end of condenser 2 is connected with restricting element 5 by pipeline, restricting element 5 is connected with the 4A end of vaporizer 4 by pipeline, the 4B end of vaporizer 4 is connected with the air entry of compressor 1 by pipeline, thus forms refrigerant circulation loop.
Seeing Fig. 8, Fig. 9, C, D point that C, D point in Fig. 9 is corresponding with Fig. 8 respectively is connected.The work process of the device that the present embodiment 3 provides is as follows:
(1) refrigerant loop flow process during this operation of air-conditioner:
nullAs shown in Figure 9，When this air conditioner startup optimization，Switch board 7 starts medium water pump 20、Cooling water pump 21，When first flow switch 35 being detected、After the normal signal of discharge of second flow switch 36 feedback，Start compressor 1，The high temperature and high pressure gas that compressor 1 is discharged passes through pipeline、The 2A end of condenser 2 enters condenser 2，After carrying out heat exchange with the cooling water in condenser，Condensation forms the liquid refrigerant of High Temperature High Pressure，The 2B end of the most condensed device 2 enters restricting element 5 by pipeline，The liquid refrigerant forming low-temp low-pressure after throttling passes through pipeline、The 4A end of vaporizer 4 enters vaporizer 4 and carries out heat exchange with the medium water circulation in vaporizer 4，Liquid refrigerant evaporation forms the gaseous refrigerant of low-temp low-pressure，Entered the air entry of compressor 1 again by pipeline by the 4B end of vaporizer 4，It is consequently formed a refrigerant circulation loop.
(2) cooling water recirculation system flow process during this operation of air-conditioner:
After cooling water pump 21 starts, the 2D end that cooling water enters condenser 2 by pipeline enters condenser 2, water-locator 23 is entered by pipeline, water distributor 22 through 2C end, flowed out by a lot of apertures of water-locator 23, it is dispersed in uniformly in water-cooling sheet group 24, form water membrane to fall again on drip tray 25, eventually pass back to water leg 26, then entered the water inlet of cooling water pump 21 by pipeline.Switch board 7 then opens automatically according to the variations in temperature of cooling water, blowing-out machine 28, and air enters, through fin gap, the water evaporation that cooling tower is accelerated on fin, reduces cooler-water temperature, forms a cooling water recirculation system.
(3) medium water circulation system flow process during this operation of air-conditioner:
After medium water pump 20 starts, current enter vaporizer 4 by pipeline through the 4C end of vaporizer 4, flow into indoor air conditioner 39 through the 4D end of vaporizer 4 by pipeline, then flow to the water inlet of medium water pump 20 by back of pipeline, formation medium water circulation system.
(4) control principle of the control system of this air conditioner is same as in Example 1, is only the reduction of the control popping one's head in multiple electrodynamic valves and portion temperature.
(5) day-to-day operation process:
When user starts this operation of air-conditioner, switch board 7 starts cooling water pump 21, medium water pump 20, compressor 1 is started after the discharge normal signal of first flow switch 35, second flow switch 36 feedback being detected, the high-temperature high-pressure refrigerant steam that compressor 1 is discharged enters condenser 2 and carries out heat exchange with cooling water, ceaselessly operated by cooling water pump 21, the heat produced is discharged by the water-locator 23 of cooling tower part, water-cooling sheet group 24, the effect of blower fan 28.The refrigerant vapour of High Temperature High Pressure condenses formation High Temperature High Pressure liquid cold-producing medium in condenser 2, enter vaporizer 4 by restricting element 5 throttling and carry out heat exchange with medium water, ceaselessly operated by medium water pump 20, vaporizer 4 is evaporated produced cold and is delivered to indoor air conditioner 39, and carry out heat exchange by the effect of blower fan and room air.The gaseous refrigerant of low-temp low-pressure is returned to the air entry of compressor 1, thus forms refrigerant-cycle systems.Ceaselessly operated by compressor 1, cooling water pump 21, blower fan 28, medium water pump 20, indoor air conditioner 39, reach to regulate the purpose of indoor environment temperature.
When indoor temperature reduces, when medium coolant-temperature gage is down to design temperature, medium coolant-temperature gage signal into and out of vaporizer 4 is fed back to switch board 7 by three-temperature sensor the 32, the 4th temperature sensor 33, switch board 7 controls compressor 1 progressively off-load, after compressor 1 off-load, pressure at expulsion and the capacity of cold-producing medium all decrease, switch board 7 can adjust the frequency of cooling water pump 21 according to the temperature that first pressure probe the 37, second pressure probe the 38, first temperature probe the 30, second temperature probe 31 etc. feeds back, pressure information, reaches energy-conservation purpose.
When medium water water temperature is down to below setting value, switch board 7 stops the operation of compressor 1, and when compressor 1 exhaust port pressure is down to the normal pressure after shutting down, switch board 7 stops cooling water pump 21 and the operation of blower fan 28 immediately, reaches energy-conservation purpose.
After the 4th temperature probe 33 detects that medium water water temperature increases to over setting value, switch board 7 is again started up cooling water pump 21 and blower fan 28 runs, after normal for discharge signal is fed back to switch board 7 by first flow switch 35, switch board 7 starts compressor 1 and runs, and so goes round and begins again and guarantees that medium water water temperature is in set point all the time.

Claims (5)

1. an energy-saving water cooling air conditioner, it is characterized in that mainly being made up of cooling tower part and equipment room part, cooling tower part is positioned at the top of equipment room part, or lay out in parallel, wherein: described cooling tower part includes cooling tower, water distributor (22), water-locator (23), water-cooling sheet group (24), drip tray (25), heat exchanger (3), windscreen (29) and pipeline；Described cooling tower, one bottom portion is equipped with water leg (26), and its top is equipped with blower fan (28), and its side is provided with heat exchanger (3), heat exchanger (3) be mounted below windscreen (29)；Switch board (7), compressor (1), condenser (2), restricting element (5), vaporizer (4), medium water pump (20), cooling water pump (21) and pipeline it is provided with in described equipment room part；
This air conditioner is provided with cooling water recirculation system, medium water circulation system, refrigerant loop and control system, wherein: utilize water cooling cold-producing medium in process of refrigerastion, utilizes cold-producing medium evaporation to absorb the heat in air in heating operations；This air conditioner utilize the medium water as medium to indoor air conditioner input hot and cold amount, or utilize cold-producing medium as medium to indoor air conditioner input hot and cold amount；
Described cooling water recirculation system is mainly made up of with condenser (2), cooling tower cooling water pump (21), wherein: the outlet of cooling water pump (21) is connected with the 2D end of condenser (2) by pipeline, the 2C end of condenser (2) is connected with water-locator (23) by pipeline, water distributor (22), water-locator (23) is connected with water-cooling sheet group (24), drip tray (25), drip tray (25) is connected with water leg (26), and the outlet of water leg (26) is connected with the water inlet of cooling water pump (21)；
Described medium water circulation system includes medium water pump (20) and condenser (2), vaporizer (4), wherein: the outlet of medium water pump (20) is connected with the 4C end of vaporizer (4) by pipeline, the 4D end of vaporizer (4) is connected with the water inlet pipe towards indoor air conditioner by pipeline, the outlet pipe drawn by indoor air conditioner is connected with the water inlet of medium water pump (20), medium water circulation system during composition refrigeration mode；The outlet of medium water pump (20) is connected also by the 2D end of pipeline with condenser (2), the 2C end of condenser (2) is connected with the water inlet pipe towards indoor air conditioner by pipeline, the outlet pipe drawn by indoor air conditioner is connected with the water inlet of medium water pump (20), medium water circulation system during composition heating mode；
Described refrigerant loop is mainly by compressor (1) and condenser (2), restricting element (5), vaporizer (4), heat exchanger (3), multiple electrodynamic valves, multiple check valves form, wherein: the air vent of compressor (1) passes through pipeline, 3rd electrodynamic valve (10) is connected with the 2A end of condenser (2), the 2B end of condenser (2) is connected with restricting element (5) by pipeline, restricting element (5) passes through pipeline, 4th electrodynamic valve (11) 4A end with vaporizer (4) again is connected, the 4B end of vaporizer (4) is connected with the air entry of compressor (1) by pipeline, thus form the refrigerant circulation loop of a refrigeration mode；The air vent of compressor (1) is connected with the 2A end of condenser (2) also by pipeline, the 3rd electrodynamic valve (10), the 2B end of condenser (2) is connected with restricting element (5) by pipeline, restricting element (5) is connected with the 3B end of heat exchanger (3) by pipeline, the second check valve (17), the 3A end of heat exchanger (3) is connected with the air entry of compressor (1) by pipeline, the first electrodynamic valve (8), thus forms the refrigerant circulation loop of a heating mode；
When energy saving water cooling heat-pump air-conditioner is made up of multiple refrigerant loops, the blower fan (28) being arranged on cooling tower top also has multiple, between the blower fan (28) of each refrigerant loop, air-duct clapboard (27) is set, to prevent from occurring between the blower fan stopping and running string wind phenomenon.
Energy-saving water cooling air conditioner the most according to claim 1, it is characterized in that described control system is switch board (7), it is connected with compressor (1), medium water pump (20), cooling water pump (21), blower fan (28), windscreen (29), restricting element (5), multiple electrodynamic valve, multiple flow switch, multiple temperature sensor, multiple pressure transducer by wire, controls open and close or startup, the stopping of these parts.
Energy-saving water cooling air conditioner the most according to claim 1, it is characterized in that cancelling described medium water circulation system and the medium water pump (20) in this system, vaporizer (4), flow switch (36), multiple electrodynamic valve, multiple temperature sensor, add cross valve (19), utilize cold-producing medium to input hot and cold amount as medium to indoor air conditioner；In this refrigerant loop, the air vent of compressor (1) is connected with the 19A end of cross valve (19) by pipeline, the 19B end of cross valve (19) passes through pipeline, 3rd electrodynamic valve (10) is connected with the 2A end of condenser (2), the 2B end of condenser (2) is connected with restricting element (5) by pipeline, restricting element (5) is connected with indoor air conditioner (39) by pipeline, indoor air conditioner (39) is connected with the 19D end of cross valve (19), the 19C end of cross valve (19) is connected with the 6A end of fluid reservoir (6) by pipeline, the 6B end of fluid reservoir (6) is connected with the air entry of compressor (1), thus form the refrigerant circulation loop of a refrigeration mode；In this refrigerant loop, the air vent of compressor (1) is connected also by the 19A end of pipeline with cross valve (19), the 19D end of cross valve (19) is connected with indoor air conditioner (39) by pipeline, indoor air conditioner (39) passes through pipeline, restricting element (5) is connected with the 3B end of heat exchanger (3), the 3A end of heat exchanger (3) passes through pipeline, second electrodynamic valve (9) is connected with the 19B end of cross valve (19), the 19C end of cross valve (19) is connected with the 6A end of fluid reservoir (6) by pipeline, the 6B end of fluid reservoir (6) is connected with the air entry of compressor (1), thus form the refrigerant loop of a heating mode.
Energy-saving water cooling air conditioner the most according to claim 1, it is characterized in that reducing the fluid reservoir (6) in heat exchanger (3), windscreen (29), air-duct clapboard (27), equipment room part, and multiple electrodynamic valve, check valve, the most described energy-saving water cooling air conditioner only has refrigerating function.
Energy-saving water cooling air conditioner the most according to claim 4, it is characterized in that being positioned at the equipment room below cooling tower is provided with switch board (7), compressor (1), condenser (2), restricting element (5), vaporizer (4), medium water pump (20), cooling water pump (21), pipeline, wherein: the outlet of cooling water pump (21) is connected with the 2D end of condenser (2) by pipeline, the 2C end of condenser (2) passes through pipeline, water distributor (22) is connected with water-locator (23), water-locator (23) and water-cooling sheet group (24), drip tray (25) is connected, drip tray (25) is connected with water leg (26), the outlet of water leg (26) is connected with the water inlet of cooling water pump (21), composition cooling water recirculation system；The outlet of medium water pump (20) is connected with the 4C end of vaporizer (4) by pipeline, the 4D end of vaporizer (4) is connected with the water inlet pipe towards indoor air conditioner by pipeline, the outlet pipe drawn by indoor air conditioner is connected with the water inlet of medium water pump (20), forms medium water circulation system；The air vent of compressor (1) is connected with the 2A end of condenser (2) by pipeline, and the 2B end of condenser (2) is connected with restricting element (5) by pipeline, Restricting element (5) is connected with the 4A end of vaporizer (4) by pipeline, and the 4B end of vaporizer (4) is connected with the air entry of compressor (1) by pipeline, forms refrigerant circulation loop；Switch board (7) is connected with compressor (1), medium water pump (20), cooling water pump (21), blower fan (28), restricting element (5), multiple flow switch, multiple temperature sensor, multiple pressure transducer by wire, controls open and close or startup, the stopping of these parts.
CN201310057643.5A 2013-02-22 2013-02-22 A kind of energy-saving water cooling air conditioner Expired - Fee Related CN103162362B (en)

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