CN105423617A - Air source flexible water chiller-heater unit and operation method - Google Patents
Air source flexible water chiller-heater unit and operation method Download PDFInfo
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- CN105423617A CN105423617A CN201510779843.0A CN201510779843A CN105423617A CN 105423617 A CN105423617 A CN 105423617A CN 201510779843 A CN201510779843 A CN 201510779843A CN 105423617 A CN105423617 A CN 105423617A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/006—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the sorption type system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/04—Arrangement or mounting of control or safety devices for sorption type machines, plants or systems
- F25B49/043—Operating continuously
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses an air source flexible water chiller-heater unit and an operation method and belongs to the field of heating and air conditioning. Existing water-cooled air source water chiller-heater units can effectively achieve the cooling function in summer but cannot achieve the heating function in winter. Existing direct air-cooled air source water chiller-heater units are high in condensing temperature in summer, and the heating effect is not as good as a water-cooled system, besides, the phenomenon that outdoor heat exchangers frost in winter exists, and existing defrosting methods influence the stable heat supply to users. According to the air source flexible water chiller-heater unit, at least one outdoor evaporation-cooled heat exchanging unit and at least two outdoor air-cooled heat exchanging units are connected in parallel and connected to the water chiller-heater unit. In summer, the water chiller-heater unit exhausts heat to outdoor air through the evaporation-cooled heat exchanging unit to reduce the condensing temperature, and the energy efficiency of the water chiller-heater unit is improved. In winter, the water chiller-heater unit absorbs heat from the outdoor air through the outdoor air-cooled heat exchanging units, and hot water produced through the water chiller-heater unit is led to the specified outdoor air-cooled heat exchanging units during defrosting, and heat is supplied to the users continuously and stably under the defrosting work condition.
Description
Technical field
The present invention relates to a kind of air-source flexible cold Hot water units and operation method, belong to heat supply and field of air conditioning.
Background technology
Air source cold-hot water unit is a kind of highly effective refrigeration heating equipment, in the winter time heat-obtaining to indoor heating in air outdoor, in summer to outdoor air heat release and to indoor cooling, with the air-conditioning of satisfied building and hot water demand.According to the difference of the outside type of cooling, air source cold-hot water unit is mainly divided into again directly air-cooled and water-cooled.
Directly air-cooled cold and hot water supply system has the advantages such as easy for installation, the scope of application is broad, floor space is little.This type systematic utilizes air cooling heat exchanger to dispel the heat to surrounding air in summer, and outdoor air obtains sensible heat and heats up.Compared with water cooled system, the condensation temperature of direct air-cooled system is usually higher, and then reduces the performance of water chiller-heater unit cooling condition.
, there is the problem of frosting in directly air-cooled cold and hot water supply system heat-obtaining in air outdoor in the winter time, particularly on the low side in temperature and the area that humidity is very large in practical application, the frost of outdoor air cooling heat exchanger is especially serious.Existing defrosting scheme has cold-producing medium inverse defrosting, thermal storage defrosting and waste heat to defrost three kinds.First two scheme can completely or partially affect user side heating effect in the process of defrosting, although waste heat defrosting can not affect indoor heating effect, the primary energy efficiency of unit can be made to decline and not reach the object of energy-conserving and environment-protective.
Under water cooled system cooling in summer operating mode, cooling water to cooling water heat release, then is passed into cooling tower by the release end of heat of water chiller-heater unit, makes it to heat release in surrounding air.The cooling water temperature produced due to water cooled system is usually less than the condensation temperature of air cooling heat exchanger, and therefore under cooling in summer operating mode, water cooled system performance is better than directly air-cooled.
And in the winter time under heating condition, common cooling tower cannot extract heat from surrounding air, there is no suitable low-grade heat source to ensure that multiple air conditioner heat pump system is normally run.Chinese patent (Authorization Notice No. CN203934451U) proposes and utilizes solution spraying air to build the method for energy tower as heat pump multi-connected machine heat-obtaining system, though solve the antifreeze problem of cooling water, but still it is inadequate to there is heat-obtaining amount, the problems such as solution cost is high, regeneration energy consumption is high.
Therefore, research and development have refrigerated efficient, heat supply continous-stable, the feature such as reliable air source cold-hot water unit be the important channel further developing and promote air source cold-hot water unit performance.
Summary of the invention
Based on above-mentioned background, the object of the invention is to propose a kind of air-source flexible cold Hot water units and operation method.This system can either utilize vapor cooling system highly effective refrigeration in summer, utilizes outdoor air cooling heat exchanger to heat in the winter time, and does not affect normal heat supply under defrosting operating condition, improves efficiency of energy utilization and the reliability of heat-supply system of air-source unit.
Technical scheme of the present invention is as follows:
A kind of air-source flexible cold Hot water units, comprises outdoor unit, water chiller-heater unit and user's three parts; Water chiller-heater unit contains heat-absorbing model and heat release module, it is characterized in that: outdoor unit comprises at least one evaporating cold heat exchange unit, at least two air-cooled heat exchange units in outdoor, and the first liquid pump, the second liquid pump, the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve, the 7th valve and the 8th valve; Each evaporating cold heat exchange unit comprises cooling tower, be positioned at the 9th valve of cooling tower export pipeline and be positioned at the tenth valve of cooling tower inlet ductwork; The air-cooled heat exchange unit in each outdoor comprises outdoor air cooling heat exchanger, the 11 valve, the 12 valve, the 13 valve and the 14 valve; 11 valve is connected with the outlet of outdoor air cooling heat exchanger with one end of the 13 valve, and the 12 valve is connected with the entrance of outdoor air cooling heat exchanger with one end of the 14 valve; The outlet of each cooling tower and the outlet of each outdoor air cooling heat exchanger are connected with the entrance of heat-absorbing model with the second valve sequentially through the first liquid pump respectively by after the 9th valve and the 11 valve in parallel, and the entrance of each cooling tower and the entrance of each outdoor air cooling heat exchanger are connected with the outlet of heat-absorbing model through the 6th valve respectively by after the tenth valve and the 12 valve in parallel; The outlet of each outdoor air cooling heat exchanger is connected with the entrance of heat release module with the 3rd valve by the 13 valve, the second liquid pump successively, and the entrance of each outdoor air cooling heat exchanger is connected with the outlet of heat release module by the 14 valve, the 7th valve successively; User is connected between the entrance of the second liquid pump and the outlet of the 7th valve, pipeline and the first valve is provided with between the outlet of the first liquid delivery side of pump and the 3rd valve, pipeline and the 4th valve is provided with between second liquid delivery side of pump and the outlet of the second valve, be provided with pipeline and the 5th valve between the outlet of the 6th valve and the entrance of the 7th valve, between the entrance of the 6th valve and the outlet of the 7th valve, be provided with pipeline and the 8th valve.
Air-source flexible cold Hot water units of the present invention, is characterized in that: described water chiller-heater unit adopts steam compression type water chiller-heater unit or absorption-type cold-hot water dispenser group.
The operation method of air-source flexible cold Hot water units of the present invention, is characterized in that this operation method comprises following three kinds of operational modes:
A. heat supply mode: when system cloud gray model is at heat supply mode, open the 11 valve in the outdoor air-cooled heat exchange unit of all or part and the 12 valve, open the second valve, 3rd valve, 6th valve and the 7th valve, remaining valve in close chamber's external air cooling system heat exchange unit, all valves in evaporating cold heat exchange unit, first valve, 4th valve, 5th valve and the 8th valve, run the first liquid pump, second liquid pump and water chiller-heater unit, water or solution enter the air-cooled heat exchange unit in outdoor of unlatching and absorb heat from environment under the driving of the first liquid pump, then heat release in the heat-absorbing model of water chiller-heater unit, continuous circulation, another strand of water is crossed solution and is absorbed heat from the heat release module of water chiller-heater unit under the driving of the second liquid pump, locates heat release, to user's heat supply user,
B. heat supply defrosting mode: when system cloud gray model is at heat supply defrosting mode, open the 11 valve in the air-cooled heat exchange unit in outdoor of the non-frosting of all or part and the 12 valve, open the 13 valve in the air-cooled heat exchange unit in all or part outdoor to be defrosted and the 14 valve, open the second valve, 3rd valve, 6th valve and the 7th valve, remaining valve in close chamber's external air cooling system heat exchange unit, all valves in evaporating cold heat exchange unit, first valve, 4th valve, 5th valve and the 8th valve, run the first liquid pump, second liquid pump and water chiller-heater unit, water or solution enter the outdoor air-cooled heat exchange unit absorbing environmental heat of the non-frosting of opening under the driving of the first liquid pump, and then heat release in the heat-absorbing model of water chiller-heater unit, constantly circulates, another strand of water or solution are divided into two-way under the driving of the second liquid pump, one tunnel enters the outdoor air-cooled heat exchange unit heat release defrost of frosting, another road enters user's heat release to user's heat supply, and then two-way converges and enters the heat release module heat absorption of water chiller-heater unit, constantly circulates,
C. cooling mode: when system cloud gray model is at cooling mode, open the 9th valve in all or part evaporating cold heat exchange unit and the tenth valve, open the first valve, the 4th valve, the 5th valve and the 8th valve, close the whole valves in the valve in all the other evaporating cold heat exchange units, outdoor air-cooled heat exchange unit, the second valve, the 3rd valve, the 6th valve and the 7th valve, run the first liquid pump, the second liquid pump and water chiller-heater unit; Water or solution enter the heat release of evaporating cold heat exchange unit under the driving of the first liquid pump, then enter water chiller-heater unit heat absorption, constantly circulate, another road water or solution enter water chiller-heater unit heat release under the driving of the second liquid pump, then user's heat absorption is entered, to user's cooling.
The present invention, compared with traditional air source cold-hot water unit, has following outstanding advantages and significant technique effect:
1., compared with direct air-cooled air source cold-hot water unit, during cooling in summer, utilize vapor cooling system to lower the temperature to cooling medium, make the refrigerating efficiency of water chiller-heater unit higher, more energy-conservation;
2., compared with water-cooling air sources cold and hot water unit, winter can realize heat supply function.Compared with adopting the air source cold-hot water unit of energy tower, eliminate regeneration of waste liquor link, avoid the problems such as solution cost is high, regeneration energy consumption is high;
3., compared with direct air-cooled air source cold-hot water unit, when Winter heat supply needs defrosting, the hot water utilizing heat pump to produce to hocket defrosting to outdoor air cooling heat exchanger, now still to user's stable heating, can improve reliability and the indoor comfort of heat supply.
Generally speaking, the invention provides a kind of refrigerated efficient rate, heat continuous, the reliable water chiller-heater unit of system cloud gray model, have important effect to solution air source cold-hot water unit Winter heat supply problem, reduction energy resource consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of air-source flexible cold Hot water units disclosed by the invention.
Fig. 2 is the structural representation of steam compression type air-source flexible cold Hot water units in the present invention.
Fig. 3 is the schematic diagram that in the present invention, steam compression type air-source flexible cold Hot water units runs heat supply mode.
Fig. 4 is the schematic diagram that in the present invention, steam compression type air-source flexible cold Hot water units runs heat supply defrosting mode.
Fig. 5 is the schematic diagram that in the present invention, steam compression type air-source flexible cold Hot water units runs cooling mode.
Fig. 6 is the structural representation of absorption air-source flexible cold Hot water units in the present invention.
Fig. 7 is the schematic diagram that in the present invention, absorption air-source flexible cold Hot water units runs heat supply mode.
Fig. 8 is the schematic diagram that in the present invention, absorption air-source flexible cold Hot water units runs heat supply defrosting mode.
Fig. 9 is the schematic diagram that in the present invention, absorption air-source flexible cold Hot water units runs cooling mode.
The component names marked in Fig. 1 is as follows: 10-evaporating cold heat exchange unit; 11-cooling tower; 12-the 9th valve; 13-the tenth valve; The outdoor air-cooled heat exchange unit of 20-; The outdoor air cooling heat exchanger of 21-; 22-the 11 valve; 23-the 12 valve; 24-the 13 valve; 25-the 14 valve; 30-water chiller-heater unit; 31-heat-absorbing model; 32-heat release module; 40-user; 501-first liquid pump; 502-second liquid pump; 503-first valve; 504-second valve; 505-the 3rd valve; 506-the 4th valve; 507-the 5th valve; 508-the 6th valve; 509-the 7th valve; 510-the 8th valve.
The component names marked in Fig. 2-Fig. 5 is as follows: 10-evaporating cold heat exchange unit; 11-cooling tower; 12-the 9th valve; 13-the tenth valve; The outdoor air-cooled heat exchange unit of 20-; The outdoor air cooling heat exchanger of 21-; 22-the 11 valve; 23-the 12 valve; 24-the 13 valve; 25-the 14 valve; 30-steam compression type water chiller-heater unit; 31a-evaporimeter; 32a-condenser; 33-compressor; 34-choke valve; 40-user; 501-first liquid pump; 502-second liquid pump; 503-first valve; 504-second valve; 505-the 3rd valve; 506-the 4th valve; 507-the 5th valve; 508-the 6th valve; 509-the 7th valve; 510-the 8th valve.
The component names marked in Fig. 6-Fig. 9 is as follows: 10-evaporating cold heat exchange unit; 11-cooling tower; 12-the 9th valve; 13-the tenth valve; The outdoor air-cooled heat exchange unit of 20-; The outdoor air cooling heat exchanger of 21-; 22-the 11 valve; 23-the 12 valve; 24-the 13 valve; 25-the 14 valve; 30-absorption-type cold-hot water dispenser group; 31b-evaporimeter; 32b-absorber; 32c-condenser; 35-generator; 36-solution heat exchanger; 37-first throttle valve; 38-second throttle; 39-solution pump; 40-user; 501-first liquid pump; 502-second liquid pump; 503-first valve; 504-second valve; 505-the 3rd valve; 506-the 4th valve; 507-the 5th valve; 508-the 6th valve; 509-the 7th valve; 510-the 8th valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, structure of the present invention, principle and operational mode are further elaborated:
Fig. 1 is the structural representation of a kind of air-source flexible cold Hot water units disclosed by the invention.Air-source flexible cold Hot water units of the present invention comprises outdoor unit, water chiller-heater unit 30 and user's 40 3 parts; Water chiller-heater unit 30 is containing heat-absorbing model 31 and heat release module 32, it is characterized in that: outdoor unit comprises at least one evaporating cold heat exchange unit 10, at least two air-cooled heat exchange units 20 in outdoor, and the first liquid pump 501, second liquid pump 502, first valve 503, second valve 504, the 3rd valve 505, the 4th valve 506, the 5th valve 507, the 6th valve 508, the 7th valve 509 and the 8th valve 510; Each evaporating cold heat exchange unit 10 comprises cooling tower 11, be positioned at the 9th valve 12 of cooling tower 11 export pipeline and be positioned at the tenth valve 13 of cooling tower 11 inlet ductwork; The air-cooled heat exchange unit in each outdoor 20 comprises outdoor air cooling heat exchanger the 21, the 11 valve the 22, the 12 valve the 23, the 13 valve the 24 and the 14 valve 25; 11 valve 22 is connected with the outlet of outdoor air cooling heat exchanger 21 with one end of the 13 valve 24, and the 12 valve 23 is connected with the entrance of outdoor air cooling heat exchanger 21 with one end of the 14 valve 25; The outlet of each cooling tower 11 and the outlet of each outdoor air cooling heat exchanger 21 are connected with the entrance of heat-absorbing model 31 with the second valve 504 sequentially through the first liquid pump 501 respectively by after the 9th valve 12 and the 11 valve 22 parallel connection, and the entrance of each cooling tower 11 and the entrance of each outdoor air cooling heat exchanger 21 are connected with the outlet of heat-absorbing model 31 through the 6th valve 508 respectively by after the tenth valve 13 and the 12 valve 23 parallel connection; The outlet of each outdoor air cooling heat exchanger 21 is connected with the entrance of heat release module 32 with the 3rd valve 505 by the 13 valve 24, second liquid pump 502 successively, and the entrance of each outdoor air cooling heat exchanger 21 is connected with the outlet of heat release module 32 by the 14 valve 25, the 7th valve 509 successively; User 40 is connected between the entrance of the second liquid pump 502 and the outlet of the 7th valve 509, pipeline and the first valve 503 is provided with between the outlet of the first liquid pump 501 and the outlet of the 3rd valve 505, pipeline and the 4th valve 506 is provided with between the outlet of the second liquid pump 502 and the outlet of the second valve 504, be provided with between the outlet of the 6th valve 508 and the entrance of the 7th valve 509 between the entrance of pipeline and the 5th valve the 507, six valve 508 and the outlet of the 7th valve 509 and be provided with pipeline and the 8th valve 510.Air-source flexible cold Hot water units of the present invention, its water chiller-heater unit 30 is steam compression type water chiller-heater unit or absorption-type cold-hot water dispenser group.
Fig. 2 is the structural representation of steam compression type air-source flexible cold Hot water units in the present invention.Air-source flexible cold Hot water units of the present invention, comprises outdoor unit, steam compression type water chiller-heater unit 30 and user's 40 3 parts; Described steam compression type water chiller-heater unit 30 comprises evaporimeter 31a, condenser 32a, compressor 33 and choke valve 34; Evaporimeter 31a, compressor 33, condenser 32a and choke valve 34 are connected in turn and form loop; It is characterized in that: outdoor unit comprises at least one evaporating cold heat exchange unit 10, at least two air-cooled heat exchange units 20 in outdoor, and the first liquid pump 501, second liquid pump 502, first valve 503, second valve 504, the 3rd valve 505, the 4th valve 506, the 5th valve 507, the 6th valve 508, the 7th valve 509 and the 8th valve 510; Each evaporating cold heat exchange unit 10 comprises cooling tower 11, be positioned at the 9th valve 12 of cooling tower 11 export pipeline and be positioned at the tenth valve 13 of cooling tower 11 inlet ductwork; The air-cooled heat exchange unit in each outdoor 20 comprises outdoor air cooling heat exchanger the 21, the 11 valve the 22, the 12 valve the 23, the 13 valve the 24 and the 14 valve 25; 11 valve 22 is connected with the outlet of outdoor air cooling heat exchanger 21 with one end of the 13 valve 24, and the 12 valve 23 is connected with the entrance of outdoor air cooling heat exchanger 21 with one end of the 14 valve 25; The outlet of each cooling tower 11 and the outlet of each outdoor air cooling heat exchanger 21 are connected with the entrance of evaporimeter 31a with the second valve 504 sequentially through the first liquid pump 501 respectively by after the 9th valve 12 and the 11 valve 22 parallel connection, and the entrance of each cooling tower 11 and the entrance of each outdoor air cooling heat exchanger 21 are connected with the outlet of evaporimeter 31a through the 6th valve 508 respectively by after the tenth valve 13 and the 12 valve 23 parallel connection; The outlet of each outdoor air cooling heat exchanger 21 is connected with the entrance of condenser 32a with the 3rd valve 505 by the 13 valve 24, second liquid pump 502 successively, and the entrance of each outdoor air cooling heat exchanger 21 is connected with the outlet of condenser 32a by the 14 valve 25, the 7th valve 509 successively; User 40 is connected between the entrance of the second liquid pump 502 and the outlet of the 7th valve 509, pipeline and the first valve 503 is provided with between the outlet of the first liquid pump 501 and the outlet of the 3rd valve 505, pipeline and the 4th valve 506 is provided with between the outlet of the second liquid pump 502 and the outlet of the second valve 504, be provided with between the outlet of the 6th valve 508 and the entrance of the 7th valve 509 between the entrance of pipeline and the 5th valve the 507, six valve 508 and the outlet of the 7th valve 509 and be provided with pipeline and the 8th valve 510.
Fig. 3 is the schematic diagram that in the present invention, steam compression type air-source flexible cold Hot water units runs heat supply mode.Open the 11 valve the 22 and the 12 valve 23 in the outdoor air-cooled heat exchange unit 20 of all or part, open the second valve 504, 3rd valve 505, 6th valve 508 and the 7th valve 509, remaining valve in close chamber's external air cooling system heat exchange unit 20, all valves in evaporating cold heat exchange unit 10, first valve 503, 4th valve 506, 5th valve 507 and the 8th valve 510, run the first liquid pump 501, second liquid pump 502 and steam compression type water chiller-heater unit 30, water or solution enter the air-cooled heat exchange unit 20 in outdoor of unlatching and absorb heat from environment under the driving of the first liquid pump 501, then heat release in steam compression type water chiller-heater unit 30, continuous circulation, another strand of water is crossed solution and is absorbed heat from steam compression type water chiller-heater unit 30 under the driving of the second liquid pump 502, in user 40 place's heat release, to user 40 heat supply.
Fig. 4 is the schematic diagram that in the present invention, steam compression type air-source flexible cold Hot water units runs heat supply defrosting mode.When system cloud gray model is at heat supply defrosting mode, open the 11 valve in the air-cooled heat exchange unit 20 in outdoor of the non-frosting of all or part and the 12 valve, open the 13 valve in the air-cooled heat exchange unit 20 in all or part outdoor to be defrosted and the 14 valve, open the second valve 504, 3rd valve 505, 6th valve 508 and the 7th valve 509, remaining valve in close chamber's external air cooling system heat exchange unit 20, all valves in evaporating cold heat exchange unit 10, first valve 503, 4th valve 506, 5th valve 507 and the 8th valve 510, run the first liquid pump 501, second liquid pump 502 and steam compression type water chiller-heater unit 30, water or solution enter the outdoor air-cooled heat exchange unit 20 absorbing environmental heat of the non-frosting of opening under the driving of the first liquid pump 501, and then heat release in steam compression type water chiller-heater unit 30, constantly circulates, another strand of water or solution are divided into two-way under the driving of the second liquid pump 502, one tunnel enters the outdoor air-cooled heat exchange unit 20 heat release defrost of frosting, another road enters user 40 heat release to user's heat supply, and then two-way converges and enters steam compression type water chiller-heater unit 30 and absorbs heat, and constantly circulates.
Fig. 5 is the schematic diagram that in the present invention, steam compression type air-source flexible cold Hot water units runs cooling mode.Open the 9th valve 12 in all or part evaporating cold heat exchange unit 10 and the tenth valve 13, open the first valve 503, the 4th valve 506, the 5th valve 507 and the 8th valve 510, close whole valves, the second valve 504, the 3rd valve 505, the 6th valve 508 and the 7th valve 509 in the valve in all the other evaporating cold heat exchange units 10, outdoor air-cooled heat exchange unit 20, run the first liquid pump 501, second liquid pump 502 and steam compression type water chiller-heater unit 30; Water or solution enter evaporating cold heat exchange unit 10 heat release under the driving of the first liquid pump 501, then enter steam compression type water chiller-heater unit 30 to absorb heat, continuous circulation, another road water or solution enter steam compression type water chiller-heater unit 30 heat release under the driving of the second liquid pump 502, then enter user 40 to absorb heat, to user 40 cooling.
Fig. 6 is the structural representation of absorption air-source flexible cold Hot water units in the present invention.Air-source flexible cold Hot water units of the present invention, comprises outdoor unit, absorption-type cold-hot water dispenser group 30 and user's 40 3 parts; Described absorption-type cold-hot water dispenser group 30 comprises generator 35, solution heat exchanger 36, first throttle valve 37, condenser 32c, absorber 32b, second throttle 38, solution pump 39 and evaporimeter 31b; The taphole of the generator 35 in described absorption type heat pump assembly 30 is connected with absorber 32b solution inlet with the hot junction of solution heat exchanger 36, second throttle 38 successively; Described absorber 32b taphole is connected with the solution inlet of generator 35 with the cold junction of solution pump 39, solution heat exchanger 36 successively; The steam (vapor) outlet of described generator 35 is connected with the steam inlet of absorber 32b with condenser 32c, first throttle valve 37, evaporimeter 31b successively; The refrigerating medium line entry of described absorber 32b is connected with the refrigerating medium tube outlet of condenser 32c; It is characterized in that: outdoor unit comprises at least one evaporating cold heat exchange unit 10, at least two air-cooled heat exchange units 20 in outdoor, and the first liquid pump 501, second liquid pump 502, first valve 503, second valve 504, the 3rd valve 505, the 4th valve 506, the 5th valve 507, the 6th valve 508, the 7th valve 509 and the 8th valve 510; Each evaporating cold heat exchange unit 10 comprises cooling tower 11, be positioned at the 9th valve 12 of cooling tower 11 export pipeline and be positioned at the tenth valve 13 of cooling tower 11 inlet ductwork; The air-cooled heat exchange unit in each outdoor 20 comprises outdoor air cooling heat exchanger the 21, the 11 valve the 22, the 12 valve the 23, the 13 valve the 24 and the 14 valve 25; 11 valve 22 is connected with the outlet of outdoor air cooling heat exchanger 21 with one end of the 13 valve 24, and the 12 valve 23 is connected with the entrance of outdoor air cooling heat exchanger 21 with one end of the 14 valve 25; The outlet of each cooling tower 11 and the outlet of each outdoor air cooling heat exchanger 21 are connected with the entrance of evaporimeter 31b with the second valve 504 sequentially through the first liquid pump 501 respectively by after the 9th valve 12 and the 11 valve 22 parallel connection, and the entrance of each cooling tower 11 and the entrance of each outdoor air cooling heat exchanger 21 are connected with the outlet of evaporimeter 31b through the 6th valve 508 respectively by after the tenth valve 13 and the 12 valve 23 parallel connection; The outlet of each outdoor air cooling heat exchanger 21 is connected with the entrance of condenser 32c with the 3rd valve 505 by the 13 valve 24, second liquid pump 502 successively, and the entrance of each outdoor air cooling heat exchanger 21 is connected with the outlet of absorber 32b by the 14 valve 25, the 7th valve 509 successively; User 40 is connected between the entrance of the second liquid pump 502 and the outlet of the 7th valve 509, pipeline and the first valve 503 is provided with between the outlet of the first liquid pump 501 and the outlet of the 3rd valve 505, pipeline and the 4th valve 506 is provided with between the outlet of the second liquid pump 502 and the outlet of the second valve 504, be provided with between the outlet of the 6th valve 508 and the entrance of the 7th valve 509 between the entrance of pipeline and the 5th valve the 507, six valve 508 and the outlet of the 7th valve 509 and be provided with pipeline and the 8th valve 510.
Fig. 7 is the schematic diagram that in the present invention, absorption air-source flexible cold Hot water units runs heat supply mode.When system cloud gray model is at heat supply mode, open the 11 valve the 22 and the 12 valve 23 in the outdoor air-cooled heat exchange unit 20 of all or part, open the second valve 504, 3rd valve 505, 6th valve 508 and the 7th valve 509, remaining valve in close chamber's external air cooling system heat exchange unit 20, all valves in evaporating cold heat exchange unit 10, first valve 503, 4th valve 506, 5th valve 507 and the 8th valve 510, run the first liquid pump 501, second liquid pump 502 and absorption-type cold-hot water dispenser group 30, water or solution enter the air-cooled heat exchange unit 20 in outdoor of unlatching and absorb heat from environment under the driving of the first liquid pump 501, then heat release in absorption-type cold-hot water dispenser group 30, continuous circulation, another strand of water is crossed solution and is absorbed heat from absorption-type cold-hot water dispenser group 30 under the driving of the second liquid pump 502, in user 40 place's heat release, to user 40 heat supply.
Fig. 8 is the schematic diagram that in the present invention, absorption air-source flexible cold Hot water units runs heat supply defrosting mode.When system cloud gray model is at heat supply defrosting mode, open the 11 valve in the air-cooled heat exchange unit 20 in outdoor of the non-frosting of all or part and the 12 valve, open the 13 valve in the air-cooled heat exchange unit 20 in all or part outdoor to be defrosted and the 14 valve, open the second valve 504, 3rd valve 505, 6th valve 508 and the 7th valve 509, remaining valve in close chamber's external air cooling system heat exchange unit 20, all valves in evaporating cold heat exchange unit 10, first valve 503, 4th valve 506, 5th valve 507 and the 8th valve 510, run the first liquid pump 501, second liquid pump 502 and absorption-type cold-hot water dispenser group 30, water or solution enter the outdoor air-cooled heat exchange unit 20 absorbing environmental heat of the non-frosting of opening under the driving of the first liquid pump 501, and then heat release in absorption-type cold-hot water dispenser group 30, constantly circulates, another strand of water or solution are divided into two-way under the driving of the second liquid pump 502, one tunnel enters the outdoor air-cooled heat exchange unit 20 heat release defrost of frosting, another road enters user 40 heat release to user's heat supply, and then two-way converges and enters absorption-type cold-hot water dispenser group 30 and absorbs heat, and constantly circulates.
Fig. 9 is the schematic diagram that in the present invention, absorption air-source flexible cold Hot water units runs cooling mode.When system cloud gray model is at cooling mode, open the 9th valve 12 in all or part evaporating cold heat exchange unit 10 and the tenth valve 13, open the first valve 503, the 4th valve 506, the 5th valve 507 and the 8th valve 510, close whole valves, the second valve 504, the 3rd valve 505, the 6th valve 508 and the 7th valve 509 in the valve in all the other evaporating cold heat exchange units 10, outdoor air-cooled heat exchange unit 20, run the first liquid pump 501, second liquid pump 502 and absorption-type cold-hot water dispenser group 30; Water or solution enter evaporating cold heat exchange unit 10 heat release under the driving of the first liquid pump 501, then enter absorption-type cold-hot water dispenser group 30 to absorb heat, continuous circulation, another road water or solution enter absorption-type cold-hot water dispenser group 30 heat release under the driving of the second liquid pump 502, then enter user 40 to absorb heat, to user 40 cooling.
Claims (3)
1. an air-source flexible cold Hot water units, comprises outdoor unit, water chiller-heater unit (30) and user's (40) three parts, water chiller-heater unit (30) is containing heat-absorbing model (31) and heat release module (32), it is characterized in that: outdoor unit comprises at least one evaporating cold heat exchange unit (10), at least two the air-cooled heat exchange unit in outdoors (20), and the first liquid pump (501), the second liquid pump (502), the first valve (503), the second valve (504), the 3rd valve (505), the 4th valve (506), the 5th valve (507), the 6th valve (508), the 7th valve (509) and the 8th valve (510), each evaporating cold heat exchange unit (10) comprises cooling tower (11), be positioned at the 9th valve (12) of cooling tower (11) export pipeline and be positioned at the tenth valve (13) of cooling tower (11) inlet ductwork, the air-cooled heat exchange unit in each outdoor (20) comprises outdoor air cooling heat exchanger (21), the 11 valve (22), the 12 valve (23), the 13 valve (24) and the 14 valve (25), 11 valve (22) is connected with the outlet of outdoor air cooling heat exchanger (21) with one end of the 13 valve (24), and the 12 valve (23) is connected with the entrance of outdoor air cooling heat exchanger (21) with one end of the 14 valve (25), the outlet of each cooling tower (11) and the outlet of each outdoor air cooling heat exchanger (21) are connected with the entrance of the second valve (504) with heat-absorbing model (31) sequentially through the first liquid pump (501) respectively by after the 9th valve (12) and the 11 valve (22) parallel connection, and the entrance of each cooling tower (11) and the entrance of each outdoor air cooling heat exchanger (21) are connected with the outlet of heat-absorbing model (31) through the 6th valve (508) respectively by after the tenth valve (13) and the 12 valve (23) parallel connection, the outlet of each outdoor air cooling heat exchanger (21) is connected with the entrance of heat release module (32) with the 3rd valve (505) by the 13 valve (24), the second liquid pump (502) successively, and the entrance of each outdoor air cooling heat exchanger (21) is connected with the outlet of heat release module (32) by the 14 valve (25), the 7th valve (509) successively, user (40) is connected between the entrance of the second liquid pump (502) and the outlet of the 7th valve (509), pipeline and the first valve (503) is provided with between the outlet of the first liquid pump (501) and the outlet of the 3rd valve (505), pipeline and the 4th valve (506) is provided with between the outlet of the second liquid pump (502) and the outlet of the second valve (504), pipeline and the 5th valve (507) is provided with between the outlet of the 6th valve (508) and the entrance of the 7th valve (509), pipeline and the 8th valve (510) is provided with between the entrance of the 6th valve (508) and the outlet of the 7th valve (509).
2. according to a kind of air-source flexible cold Hot water units according to claim 1, it is characterized in that: described water chiller-heater unit (30) adopts steam compression type water chiller-heater unit or absorption-type cold-hot water dispenser group.
3. adopt an operation method for air-source flexible cold Hot water units as claimed in claim 1, it is characterized in that: this operation method comprises following three kinds of operational modes:
A. heat supply mode: when system cloud gray model is at heat supply mode, open the 11 valve (22) in the outdoor air-cooled heat exchange unit (20) of all or part and the 12 valve (23), open the second valve (504), 3rd valve (505), 6th valve (508) and the 7th valve (509), remaining valve in close chamber's external air cooling system heat exchange unit (20), all valves in evaporating cold heat exchange unit (10), first valve (503), 4th valve (506), 5th valve (507) and the 8th valve (510), run the first liquid pump (501), second liquid pump (502) and water chiller-heater unit (30), water or solution enter the air-cooled heat exchange unit in the outdoor (20) of unlatching and absorb heat from environment under the driving of the first liquid pump (501), then heat release in the heat-absorbing model (31) in water chiller-heater unit (30), continuous circulation, another strand of water is crossed solution and is absorbed heat from the heat release module (32) of water chiller-heater unit (30) under the driving of the second liquid pump (502), in user (40) place's heat release, to user (40) heat supply,
B. heat supply defrosting mode: when system cloud gray model is at heat supply defrosting mode, open the 11 valve in the air-cooled heat exchange unit in the outdoor (20) of the non-frosting of all or part and the 12 valve, open the 13 valve in the air-cooled heat exchange unit in all or part outdoor to be defrosted (20) and the 14 valve, open the second valve (504), 3rd valve (505), 6th valve (508) and the 7th valve (509), remaining valve in close chamber's external air cooling system heat exchange unit (20), all valves in evaporating cold heat exchange unit (10), first valve (503), 4th valve (506), 5th valve (507) and the 8th valve (510), run the first liquid pump (501), second liquid pump (502) and water chiller-heater unit (30), water or solution enter outdoor air-cooled heat exchange unit (20) the absorbing environmental heat of the non-frosting of opening under the driving of the first liquid pump (501), then heat release in the heat-absorbing model (31) in water chiller-heater unit (30), constantly circulates, another strand of water or solution are divided into two-way under the driving of the second liquid pump (502), one tunnel enters outdoor air-cooled heat exchange unit (20) the heat release defrost of frosting, another road enters user (40) heat release to user's heat supply, then two-way converges and enters heat release module (32) heat absorption of water chiller-heater unit (30), constantly circulates,
C. cooling mode: when system cloud gray model is at cooling mode, open the 9th valve (12) in all or part evaporating cold heat exchange unit (10) and the tenth valve (13), open the first valve (503), 4th valve (506), 5th valve (507) and the 8th valve (510), close the valve in all the other evaporating cold heat exchange units (10), whole valves in outdoor air-cooled heat exchange unit (20), second valve (504), 3rd valve (505), 6th valve (508) and the 7th valve (509), run the first liquid pump (501), second liquid pump (502) and water chiller-heater unit (30), water or solution enter evaporating cold heat exchange unit (10) heat release under the driving of the first liquid pump (501), then water chiller-heater unit (30) heat absorption is entered, continuous circulation, another road water or solution enter water chiller-heater unit (30) heat release under the driving of the second liquid pump (502), then user (40) heat absorption is entered, to user (40) cooling.
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| CN105423617B (en) | 2018-04-10 |
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