CN104296286B - Heat source tower refrigerating and heating energy-saving equipment with ice storage and heat storage functions - Google Patents
Heat source tower refrigerating and heating energy-saving equipment with ice storage and heat storage functions Download PDFInfo
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- CN104296286B CN104296286B CN201410550836.9A CN201410550836A CN104296286B CN 104296286 B CN104296286 B CN 104296286B CN 201410550836 A CN201410550836 A CN 201410550836A CN 104296286 B CN104296286 B CN 104296286B
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- reserving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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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
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
- F25B31/004—Lubrication oil recirculating arrangements
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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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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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
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses heat source tower refrigerating and heating energy-saving equipment with ice storage and heat storage functions. The equipment comprises a heat source tower, a heat pump main machine, a solution concentration device and an indoor unit, the heat pump main machine comprises a compressor, a secondary oil separator, a condenser, a drying filter, an electronic expansion valve and an evaporator which are sequentially connected and form a loop, the evaporator comprises a refrigerating heat exchanger and an ice storage heat exchanger, the compressor and the secondary oil separator are connected through a secondary oil return pipeline, an oil filter used for impurity filtering is arranged on the secondary oil return pipeline, an evaporator oil return pipeline is arranged on the evaporator, and a jet pump is arranged on the evaporator oil return pipeline. By the equipment, an existing heat source tower heat pump air conditioning unit is enabled to have an ice storage or heat storage function, so that urban valley electricity in summer is fully utilized for ice storage or heat storage, and running cost is lowered substantially; oil return from the evaporator to the compressor is realized, and the objective of enabling a whole system to run stably and reliably is achieved.
Description
Technical field
The present invention relates to heat source tower heat pump air-conditioner set technical field, more particularly to a kind of thermal source with ice-reserving heat accumulation function
Tower refrigerating and heating energy-saving equipment.
Background technology
Heat source tower heat pump air-conditioner set is that the heat absorbed in a kind of winter in outdoor air provides heat, summer general for system
The heat of system is discharged to the combination accessory apparatus of outdoor.Heat source tower heat pump air-conditioner set is mainly by heat source tower, heat pump（It is little
Temperature difference water resource heat pump）With defroster combination.Heat pump is mainly by vaporizer, compressor, expansion valve, secondary oil separator and condenser
Composition, working medium is circulated successively in five parts, constantly changes state, completes heat absorption and heat release.Summer, by heat source tower
Source pump being cooled to using evaporation, stable low-temperature receiver is provided；In winter, heat source tower is using the mounting medium that is below the freezing point, high efficiency extraction ice
The following air wet bulb calorific potential of point, so as to provide reliable thermal source for source pump.Heat source tower heat pump air-conditioner set is not present
The limited problem of the serious frosting of air-cooled heat pump and earth source heat pump suitable application region, it changes traditional Water cooled air conditionerses and is only suitable for single cropping
The history that section is used, instead of the refrigeration and heating mode of Environmental Cities unit refrigeration+oil burning boiler, be a leather of field of air conditioning
Life.It is heat source tower heat pump air-conditioner set simple structure, easy to operate, it is widely used in the fields such as market, hospital, hotel, apartment, hotel
Institute.At present, the major function of heat source tower heat pump air-conditioner set is cooling in summer, winter heating, i.e. heat source tower heat pump air-conditioner set
Can run under cooling condition and heating operating mode.But, in part occasion, there is larger electricity price between peak and valley, if desired for ice-reserving, then
Another purchase ice-reserving unit is needed, initial cost can be increased, and air conditioning unit utilization ratio is low, long construction period, takes effectively empty
Between it is big, affect the integral arrangement of machine room.
The content of the invention
Goal of the invention：For the deficiencies in the prior art, it is an object of the invention to provide a kind of ice-reserving accumulation of heat of band
The heat source tower refrigerating and heating energy-saving equipment of function, can make thermal source pump heat pump air conditioner unit possess ice-reserving and heat accumulation function, so as to
The purpose for enabling whole system to stablize, reliably running is reached, effects of energy conservation and environmental protection is reached.
Technical scheme：In order to realize foregoing invention purpose, the technical solution used in the present invention is as follows：
A kind of heat source tower refrigerating and heating energy-saving equipment with ice-reserving heat accumulation function, including heat source tower, heat pump main frame, solution is dense
Compression apparatus and indoor set, the heat pump main frame includes being sequentially connected and constituting compressor, secondary oil separator, the condensation in loop
Device, device for drying and filtering, electric expansion valve and vaporizer；The vaporizer includes refrigerated heat exchanger and ice storage heat exchanger, the system
Cold heat exchanger is connected by chilled water import and chilled water outlet with the chilled water pipeline system of the heat source tower, the ice-reserving
Heat exchanger is connected by the import of ice-reserving liquid and the outlet of ice-reserving liquid with ice-reserving heat-exchange system；The compressor and the secondary oil
It is connected by secondary return line between device, the secondary return line is provided with the oil strainer for contaminant filter；
Vaporizer return line is provided with described vaporizer, jet pump, the injection are provided with the vaporizer return line
Pump has high pressure incoming end, suction side and low pressure outlet end, and the high pressure accesses the oil terminated into the secondary oil separator
The vaporizer is accessed in import, the suction side, and the low pressure outlet end accesses the air entry of the compressor；Described condensation
Device is changed and includes condensing heat exchanger and regenerative heat exchanger, and described condensing heat exchanger passes through cooling water inlet, coolant outlet and thermal source
Tower（Cooling tower）It is connected, described regenerative heat exchanger is connected by accumulation of heat liquid import, the outlet of accumulation of heat liquid with heat storage pool.
The vaporizer includes housing, and heat exchanger tube and the ice-reserving heat exchange of the refrigerated heat exchanger is set in the housing
The heat exchanger tube of device, the chilled water import and the chilled water outlet are located at the shell one end, the chilled water import connection
The inbound port of the heat exchanger tube of the refrigerated heat exchanger, what the chilled water outlet connected the heat exchanger tube of the refrigerated heat exchanger goes out end
Mouthful；Ice-reserving liquid import and ice-reserving liquid outlet are located at the housing other end, storage described in the ice-reserving liquid inlet communication
The inbound port of the heat exchanger tube of ice heat exchanger, the inbound port of the heat exchanger tube of ice storage heat exchanger described in the ice-reserving liquid outlet.
The condenser includes housing, and the heat exchanger tube and the regenerative heat exchange of the condensing heat exchanger are set in the housing
The heat exchanger tube of device, the cooling water inlet and the coolant outlet are located at the shell one end, the cooling water inlet connection
The inbound port of the heat exchanger tube of the condensing heat exchanger, what the coolant outlet connected the heat exchanger tube of the condensing heat exchanger goes out end
Mouthful；Accumulation of heat liquid import and accumulation of heat liquid outlet are located at the housing other end, storage described in the accumulation of heat liquid inlet communication
The inbound port of the heat exchanger tube of heat exchanger, the inbound port of the heat exchanger tube of regenerative heat exchanger described in the accumulation of heat liquid outlet.
Oil return solenoid valve, the first visor and the first check valve, the secondary returning are additionally provided with the secondary return line
The pipeline of oil pipe line is drawn from the oil return opening of the secondary oil separator, sequentially passes through the oil strainer, the oil return electromagnetism
The pipeline drawn with the oil storage tank from the compressor after valve, first visor, first check valve is connected.
The 3rd check valve, the second visor and ball valve, the vaporizer oil return are additionally provided with the vaporizer return line
The pipeline of pipeline is drawn from the vaporizer, sequentially passes through the 3rd check valve, the suction side of the jet pump, the injection
The pipeline drawn with the air entry from the compressor after the low pressure outlet end of pump, second visor and the ball valve is connected
Connect, and the pipeline that the high pressure incoming end of the jet pump is drawn with the oil import from the secondary oil separator is connected.
The ice-reserving liquid heat-exchange system includes coolant pump and ice storage unit, and described coolant pump one end passes through ice-reserving liquid pipe
It is connected with ice-reserving liquid outlet, the other end is connected by ice-reserving liquid pipe with described ice storage unit one end, and the ice storage unit is another
One end is connected by ice-reserving liquid pipe with the ice-reserving liquid import.
The heat storage pool is the heat storage pool made using paraffin phase change material, and heat storage tank is set in heat storage pool.
Beneficial effect：Compared with prior art, the heat source tower refrigerating and heating energy-saving with ice-reserving heat accumulation function of the invention sets
Standby, setting tool has the vaporizer and ice-reserving liquid heat-exchange system of ice-reserving function, the condenser with heat accumulation function in source pump
And heat storage pool, using vaporizer high corrosion protection design with it is low go out liquid temp control, by the heat exchanger tube for setting up vaporizer, formed
Independent hydroecium, and existing refrigerating evaporator is combined to form double evaporators with ice-reserving vaporizer, so as to make full use of the summer
Its city paddy electricity carries out ice-reserving, and the heat exchanger tube for setting up condenser can also be utilized in the same manner, forms independent hydroecium, and will be existing
Condenser combines to form double-condenser with regenerative heat exchanger, and accumulation of heat is carried out using city paddy electricity during so as to operating mode in the winter time,
Operating cost is greatly lowered, i.e., the heat source tower refrigerating and heating energy-saving equipment with ice-reserving heat accumulation function of the invention is that one kind can be
Run under cooling condition, heating operating mode and ice making operating mode, accumulation of heat operating mode and be attained by high energy efficiency ratio under these four operating modes
Source pump.At present, in the transformation process of city central air conditioner system, transformation handpiece Water Chilling Units are gone to add combustion using heat source tower heat pump
Gas boiler, usually can energy-conservation reach more than 20%, the present invention increases ice-reserving function and heat accumulation function, using city time-of-use tariffs
Difference, through measuring and calculating, with energy-conservation more than 30%, and can reduce the initial cost of ice-reserving, reduce system synthesis energy consumption and operating cost,
Produce good economic benefit and social benefit.Additionally, the present invention utilizes two by introducing jet pump on secondary return line
The pressure produced by height pressure reduction between the oil import of secondary oil eliminator and the air entry of compressor, by secondary oil separator
In gases at high pressure compressor air suction mouth is transferred to certain flow rate, and under jet turbulent diffusion, by low pressure outlet end
Evaporator shell in refrigeration oil and cold-producing medium mixture, the air entry of injection to compressor makes refrigeration oil in compressor
Amount control ensure that compressor is normal, in the range of stable operation, so as to further solve from evaporator to compressor
The difficult problem of oil return, has reached the purpose for enabling whole system to stablize, reliably running.
Description of the drawings
Fig. 1 is the structural representation of the heat source tower refrigerating and heating energy-saving equipment with ice-reserving heat accumulation function；
Fig. 2 is the structural representation of heat pump main frame.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described further.
As shown in figure 1, a kind of heat source tower refrigerating and heating energy-saving equipment with ice-reserving heat accumulation function, capital equipment includes thermal source
Tower 10, solution condensing device 101, indoor set 102, water collector 103, water knockout drum 104, heat pump main frame and control system；In thermal source
Tower 10 enters pipeline by the solution that exchanges heat and heat exchange solution goes out pipeline series connection water knockout drum 104, indoor set 102, water collector 103 and forms system
Cold heat supplying loop, and enter pipeline in heat exchange solution and heat exchange solution goes out between pipeline heat pump main frame and solution condensing device in parallel connection
101, necessary control valve is provided with each connecting line, for the control of control system.The typical pipeline connection of the equipment
And control mode is referred to CN101915479A disclosure of that or carries out rational improvement to carry out according to the content.
Wherein, as shown in Fig. 2 the heat pump main frame in present device include be sequentially connected and constitute loop compressor 1,
Secondary oil separator 2, condenser 3, device for drying and filtering 4, electric expansion valve 5 and vaporizer 6；Vaporizer 6 includes refrigerated heat exchanger
And ice storage heat exchanger, refrigerated heat exchanger is by chilled water import 61 and the chilled water pipeline system of chilled water outlet 62 and heat source tower
It is connected, ice storage heat exchanger is connected by ice-reserving liquid import 63 and ice-reserving liquid outlet 64 with ice-reserving liquid heat-exchange system 9；Compressor
It is connected by secondary return line 7 between 1 and secondary oil separator 2；Secondary return line is provided with for contaminant filter
Oil strainer 71；Vaporizer return line 8 is additionally provided with, jet pump 81 is provided with vaporizer return line 8, jet pump 81 has
High pressure incoming end, suction side and low pressure outlet end, high pressure accesses the oil import 21 terminated into secondary oil separator 2, suction side
Vaporizer 6 is accessed, low pressure outlet end accesses the air entry 11 of compressor 1；Condenser 3 is changed and includes condensing heat exchanger and regenerative heat exchange
Device, condensing heat exchanger passes through cooling water inlet 31, coolant outlet 32 and heat source tower（Cooling tower）It is connected, regenerative heat exchanger passes through
Accumulation of heat liquid import 33, accumulation of heat liquid outlet 34 is connected with heat storage pool 35.Control system controls the heat pump main frame and selects an operation work
Make in cooling condition, Xu Yuanzhong and heating operating mode.
Vaporizer 6 includes a housing, and the heat exchanger tube of cold heat exchanger and the heat exchanger tube of ice storage heat exchanger are equipped with housing, cold
Freeze water inlet and chilled water outlet is located at shell one end, the inbound port of the heat exchanger tube of chilled water import connection refrigerated heat exchanger is cold
The exit port of the heat exchanger tube of freezing water outlet connection refrigerated heat exchanger.The import of ice-reserving liquid and the outlet of ice-reserving liquid are another located at the housing
End, the inbound port of the heat exchanger tube of ice-reserving liquid inlet communication ice storage heat exchanger, ice storage heat exchanger changes described in ice-reserving liquid outlet
The inbound port of heat pipe.
Condenser 3 includes housing, and the heat exchanger tube of condensing heat exchanger and the heat exchanger tube of regenerative heat exchanger are set in housing, cools down
Water inlet 31 and coolant outlet 32 be located at shell one end, and the heat exchanger tube of the connection condensing heat exchanger of cooling water inlet 31 enters end
Mouthful, the exit port of the heat exchanger tube of the connection condensing heat exchanger of coolant outlet 32；Accumulation of heat liquid import 33 and accumulation of heat liquid outlet 34 are located at
The housing other end, the inbound port of the heat exchanger tube of the connection regenerative heat exchanger of accumulation of heat liquid import 33, accumulation of heat liquid outlet 34 connects accumulation of heat and changes
The inbound port of the heat exchanger tube of hot device.Heat storage pool 35 is the heat storage pool made using paraffin phase change material, and in heat storage pool 35 storage is set
Heat channel 36.
Oil return solenoid valve 72, the first visor 73 and the first check valve 74, secondary oil return are additionally provided with secondary return line 7
The pipeline of pipeline 7 is drawn from the oil return opening 22 of secondary oil separator 2, sequentially passes through oil strainer 71, oil return solenoid valve 72, first
The pipeline drawn with the oil storage tank from compressor 1 after visor 73, the first check valve 74 is connected.
The 3rd check valve 82, the second visor 83 and ball valve 84, vaporizer oil return pipe are additionally provided with vaporizer return line 8
The pipeline flash-pot 8 on road 8 is drawn, and is sequentially passed through the suction side of the 3rd check valve 81, jet pump, the low pressure of jet pump and is discharged
The pipeline drawn with the air entry from compressor 1 after end, the second visor 83 and ball valve 84 is connected, and the high pressure of jet pump is accessed
The pipeline drawn with the oil import from secondary oil separator is held to be connected.
Ice-reserving liquid heat-exchange system 9 includes coolant pump 91 and ice storage unit 92, and the one end of coolant pump 91 passes through ice-reserving liquid pipe
It is connected with the outlet of ice-reserving liquid, the other end is connected by ice-reserving liquid pipe with the one end of ice storage unit 92, and the other end of ice storage unit 92 passes through
Ice-reserving liquid pipe is connected with ice-reserving liquid import.
The vaporizer of the present invention is divided into two heat exchangers, respectively refrigerated heat exchanger and ice storage heat exchanger, refrigerated heat exchanger
It is connected with the chilled water pipeline system of heat source tower, i.e., is exchanged heat with conventional air-conditioner water system, ice storage heat exchanger and ice-reserving
Liquid heat-exchange system is exchanged heat, and ice-reserving liquid heat-exchange system includes ice storage unit and the refrigerating medium connected by pipeline when being embodied as
Pump.The operation of heat source tower heat pump air-conditioner set of the present invention can select cooling condition or heating operating mode or storage by control system
Ice operating mode.
In cooling condition, by heat pump indoor waste heat is transferred to heat source tower and is emitted, reach refrigeration
Purpose, detailed process is as follows：Under the automatically controlling of control system, from the high temperature that the air vent 12 of compressor 1 compresses out
The oil import of the mixed gas Jing oil eliminator 2 of higher pressure refrigerant gas and lubricating oil is separated into oil eliminator, point
Return line of refrigeration oil Jing after sends again the refrigerant gas in the oil storage tank of compressor low-pressure side, after separation back to（Contain
A small amount of lubricating oil）Jing oil eliminators oil outlet 23 enter condenser 3 in, by with the heat exchanger tube for flowing through condenser in it is cold
But water heat exchange, one side cooling water absorption refrigeration agent condensation heat and temperature rise, on the other hand, the gaseous refrigerant of High Temperature High Pressure
It is condensed into the liquid refrigerant of cryogenic high pressure（Containing a small amount of lubricating oil）, after liquid refrigerant outflow condenser, through dry filter
The contaminant filter of device 4, electric expansion valve 5 throttling control after, enter in the refrigerated heat exchanger of vaporizer 6, by with flow through refrigeration
Chilled water heat exchange in heat exchanger, one side cold-producing medium evaporates and the heat of absorption refrigerating water, and reduces chilled water water temperature, there is provided
User uses, reduction use environment temperature, the low-temperature low-pressure refrigerant steam of still further aspect compressor suck stream flash-pot,
Refrigerant vapour is carried out to become the refrigerant gas of High Temperature High Pressure after acting compression, so circulation compression reaches refrigeration purpose.
In Xu Yuanzhong, using the electric load very low low power consumption phase at night, freezed using ice storage heat exchanger, make storage
Cold medium is build-up ice, and using the sensible heat and latent heat property of cool storage medium, cold is stored；Detailed process is as follows：In control
Under the automatically controlling of system, the mixing of the high-temperature high-pressure refrigerant gas and lubricating oil that compress out from the air vent of compressor 1
The oil import of gas Jing oil eliminators 2 is separated into oil eliminator, and the refrigeration oil Jing return line after separation is sent back to again
Refrigerant gas in the oil storage tank of compressor low-pressure side, after separation（Containing a small amount of lubricating oil）The outlet of Jing oils enters condenser 3,
By with the heat exchanger tube for flowing through condenser in cooling water heat exchange, one side cooling water absorption refrigeration agent condensation heat and in temperature
Rise, on the other hand, the gaseous refrigerant of High Temperature High Pressure is condensed into the liquid refrigerant of cryogenic high pressure, after flowing out condenser, passes through
After the contaminant filter of device for drying and filtering 4, the throttling control of electric expansion valve 5, in the ice storage heat exchanger entered in vaporizer 6, with stream
Ice-reserving liquid in Jing ice storage heat exchangers is exchanged heat, and one side cold-producing medium evaporates and absorbs the heat of ice-reserving liquid, and reduces ice-reserving
The temperature of liquid, makes ice-reserving liquid build-up ice, using cool storage medium（Ice-reserving liquid）Sensible heat and latent heat property, cold is stored,
The purpose of ice cold-storage is reached, the low-temperature low-pressure refrigerant steam of another aspect compressor suck stream flash-pot steams to cold-producing medium
Gas carries out becoming the refrigerant gas of High Temperature High Pressure after acting compression, so circulation compression, reaches refrigeration purpose.
Under heating operating mode, heat source tower directly gathers outdoor low-grade energy equipment.Heat source tower is circulated using low enthalpy value salt
Solution forms directly higher with the enthalpy clammy air of liquid film and is fully contacted in heat exchange layer surface, and cold is passed to air.Contact
The circulating liquid temperatures approach of heat transfer provides stable thermal source in the wet bulb temperature of outdoor air for water circulation heat pump air conditioner
Source.Detailed process is prior art, be will not be described here.
In accumulation of heat operating mode, using the electric load very low low power consumption phase at night, heated using regenerative heat exchanger, make storage
It is liquid that thermal medium melts, and using the sensible heat and latent heat property of heat storage medium, heat storage is got up；Detailed process is as follows：
Under the automatically controlling of control system, the high-temperature high-pressure refrigerant gas that compresses out from the air vent of compressor 1 and lubricating oil
The oil import of mixed gas Jing oil eliminator 2 is separated into oil eliminator, and the refrigeration oil Jing return line after separation is again
Refrigerant gas in sending the oil storage tank of compressor low-pressure side back to, after separation（Containing a small amount of lubricating oil）The outlet of Jing oils enters accumulation of heat
Heat exchanger 3, by exchanging heat with the heat medium water in the heat exchanger tube for flowing through regenerative heat exchanger, one side heat medium water absorption refrigeration agent condensation
Heat and temperature rises, and improve the temperature of heat storage medium, melt heat storage medium for liquid, using heat storage medium sensible heat and
Latent heat property, heat storage is got up, and reaches the purpose of phase-transition heat-storage on the other hand, and the gaseous refrigerant of High Temperature High Pressure is condensed into
The liquid refrigerant of cryogenic high pressure, after flowing out regenerative heat exchanger, throttles through the contaminant filter of device for drying and filtering 4, electric expansion valve 5
After control, enter in vaporizer 6, with the chilled water heat exchange flowed through in vaporizer, another aspect compressor suck stream spontaneous evaporation
The low-temperature low-pressure refrigerant steam of device, carries out becoming the refrigerant gas of High Temperature High Pressure after acting compression, such as to refrigerant vapour
This circulation compression, reaches refrigeration purpose.
Oil return principle on secondary return line is to be divided Jing secondary oil separators using the oil return opening of secondary oil separator
Bis- return lines of refrigeration oil Jing after are sent back to again in the oil storage tank of compressor low-pressure side, and oil is arranged on secondary return line
Filter, to oil return contaminant filter is carried out, it is ensured that the oil return quality entered in compressor.Arrange on secondary return line and regard
Mirror, can at any time observe the mobility status of refrigeration oil in secondary return line, play monitoring production, avoid accident in production process from sending out
Raw effect.
Oil return principle on vaporizer return line is the air-breathing of the oil import using secondary oil separator and compressor
Gases at high pressure in secondary oil separator are transferred to compressor by the pressure produced by height pressure reduction between mouthful with certain flow rate
Air entry, and under jet turbulent diffusion, the refrigeration oil in the evaporator shell of low pressure outlet end is mixed with cold-producing medium
Compound, the air entry of injection to compressor, the amount for making refrigeration oil in compressor controls ensure that compressor is normal, stably transporting
In capable scope, difficult from evaporator to compressor oil return so as to further solve the problems, such as, having reached enables whole system
The purpose of stable, reliable operation.
Heat source tower refrigerating and heating energy-saving equipment with ice-reserving heat accumulation function of the invention, its heat source tower refrigerating and heat-supplying with routine
The difference of energy conserving system is：By the structure for improving existing source pump, the vaporizer with ice-reserving function and storage are set up
Ice liquid heat-exchange system, using existing vaporizer high corrosion protection design with it is low go out liquid temp control, by setting up heat exchanger tube, formed
Independent hydroecium, and existing refrigerating evaporator is combined to form double evaporators with ice-reserving vaporizer, so as to make full use of the summer
Its city paddy electricity carries out ice-reserving, and operating cost is greatly lowered, i.e., the heat source tower refrigerating and heat-supplying with ice-reserving heat accumulation function of the invention
Energy-saving equipment is that one kind can be run under cooling condition, heating operating mode and ice making operating mode and can reach under these three operating modes
To the refrigeration unit of high energy efficiency ratio.At present, in the transformation process of city central air conditioner system, transformation is gone using heat source tower heat pump
Handpiece Water Chilling Units add gas fired-boiler, the present invention usually can energy-conservation reach more than 20%, if increasing ice-reserving function, using city peak
Paddy electricity price differential, through measuring and calculating, with energy-conservation more than 30%, and can reduce the initial cost of ice ice-reserving, reduce system synthesis energy consumption with fortune
Row expense, produces good economic benefit and social benefit.Additionally, the present invention on the vaporizer return line set up by drawing
Enter jet pump, using secondary oil separator oil import and the air entry of compressor between height pressure reduction produced by pressure
Power, by the refrigeration oil in the evaporator shell of low pressure outlet end and the mixture of cold-producing medium, the air entry of injection to compressor makes
The amount control of refrigeration oil is ensure that compressor is normal, in the range of stable operation in compressor, so as to further solve from
The difficult problem of evaporator to compressor oil return, has reached the purpose for enabling whole system to stablize, reliably running.
Heat source tower refrigerating and heating energy-saving equipment with ice-reserving heat accumulation function of the invention under control of the control system can be in system
The refrigeration unit of high energy efficiency ratio is run and is attained by under both operating modes under cold operating mode, heating operating mode and ice making operating mode.Summer
During season operating mode, using similar to cooling tower heat source tower, condensation heat is discharged in air, during winter condition, beneficial to heat source tower with
Refrigerating medium absorbs heat from air.When running under cooling condition, the chilled water leaving water temperature of heat source tower is 7 DEG C；In ice making
When running under operating mode, the refrigerating medium outlet temperature of ice-reserving liquid heat-exchange system is -5 DEG C～-15 DEG C, under heating operating mode, heat source tower
Air conditioning hot leaving water temperature be 45 DEG C.
Above example is referring to the drawings, to a preferred embodiment of the present invention will be described in detail, those skilled in the art
In the case that member is by carrying out modification or change on various forms, but the essence without departing substantially from the present invention to above-described embodiment, all
Fall within the scope and spirit of the invention.
Claims (4)
1. a kind of heat source tower refrigerating and heating energy-saving equipment with ice-reserving heat accumulation function, including heat source tower (10), heat pump main frame, solution
Enrichment facility and indoor set, the heat pump main frame includes being sequentially connected and constituting compressor (1), the secondary oil separator in loop
(2), condenser (3), device for drying and filtering (4), electric expansion valve (5) and vaporizer (6)；It is characterized in that：The vaporizer bag
Refrigerated heat exchanger and ice storage heat exchanger are included, the refrigerated heat exchanger is by chilled water import (61) and chilled water outlet (62) and institute
The chilled water pipeline system for stating heat source tower is connected, and the ice storage heat exchanger is exported by ice-reserving liquid import (63) and ice-reserving liquid
(64) it is connected with ice-reserving liquid heat-exchange system (9)；Pass through secondary oil return pipe between the compressor and the secondary oil separator
Road (7) is connected, and the secondary return line is provided with the oil strainer (71) for contaminant filter；In described vaporizer
(6) vaporizer return line (8) is provided with, on the vaporizer return line (8) jet pump (81), the jet pump is provided with
With high pressure incoming end, suction side and low pressure outlet end, the high pressure accesses the oil terminated into the secondary oil separator (2)
The vaporizer is accessed in import (21), the suction side, and the low pressure outlet end accesses the air entry (11) of the compressor；Institute
The condenser (3) stated is changed and includes condensing heat exchanger and regenerative heat exchanger, and described condensing heat exchanger is by cooling water inlet (31), cold
But water out (32) is connected with heat source tower, described regenerative heat exchanger by accumulation of heat liquid import (33), accumulation of heat liquid outlet (34) with
Heat storage pool (35) is connected；The vaporizer includes housing, and heat exchanger tube and the institute of the refrigerated heat exchanger are set in the housing
The heat exchanger tube of ice storage heat exchanger is stated, the chilled water import and the chilled water outlet are located at the shell one end, the freezing
Water inlet connects the inbound port of the heat exchanger tube of the refrigerated heat exchanger, and the chilled water outlet connects changing for the refrigerated heat exchanger
The exit port of heat pipe；Ice-reserving liquid import and ice-reserving liquid outlet are located at the housing other end, the ice-reserving liquid import
The inbound port of the heat exchanger tube of the ice storage heat exchanger is connected, the heat exchanger tube of ice storage heat exchanger described in the ice-reserving liquid outlet
Inbound port；The condenser includes housing, and the heat exchanger tube and the regenerative heat exchange of the condensing heat exchanger are set in the housing
The heat exchanger tube of device, the cooling water inlet and the coolant outlet are located at the shell one end, the cooling water inlet connection
The inbound port of the heat exchanger tube of the condensing heat exchanger, what the coolant outlet connected the heat exchanger tube of the condensing heat exchanger goes out end
Mouthful；Accumulation of heat liquid import and accumulation of heat liquid outlet are located at the housing other end, storage described in the accumulation of heat liquid inlet communication
The inbound port of the heat exchanger tube of heat exchanger, the inbound port of the heat exchanger tube of regenerative heat exchanger described in the accumulation of heat liquid outlet；Institute
It is the heat storage pool made using paraffin phase change material to state heat storage pool (35), and heat storage tank (36) is set in heat storage pool.
2. the heat source tower refrigerating and heating energy-saving equipment with ice-reserving heat accumulation function according to claim 1, it is characterised in that：
It is additionally provided with oil return solenoid valve (72), the first visor (73) and the first check valve (74) on the secondary return line (7), described two
The pipeline of secondary return line is drawn from the oil return opening (22) of the secondary oil separator, sequentially pass through the oil strainer (71),
The oil return solenoid valve (72), first visor (73), first check valve (74) afterwards with the oil storage from the compressor
The pipeline that tank is drawn is connected.
3. the heat source tower refrigerating and heating energy-saving equipment with ice-reserving heat accumulation function according to claim 1, it is characterised in that：
The 3rd check valve (82), the second visor (83) and ball valve (84), the vaporizer are additionally provided with the vaporizer return line (8)
The pipeline of return line is drawn from the vaporizer, sequentially pass through the 3rd check valve (82), the suction side of the jet pump,
The low pressure outlet end of the jet pump, second visor (83) and the ball valve (84) afterwards with the air entry from the compressor
The pipeline of extraction is connected, and the high pressure incoming end of the jet pump and the oil import extraction from the secondary oil separator
Pipeline is connected.
4. the heat source tower refrigerating and heating energy-saving equipment with ice-reserving heat accumulation function according to claim 1, it is characterised in that：Institute
Ice-reserving liquid heat-exchange system (9) is stated including coolant pump (91) and ice storage unit (92), described coolant pump one end passes through ice-reserving liquid
Pipe is connected with ice-reserving liquid outlet, and the other end is connected by ice-reserving liquid pipe with described ice storage unit one end, the ice storage unit
The other end is connected by ice-reserving liquid pipe with the ice-reserving liquid import.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410550836.9A CN104296286B (en) | 2014-10-17 | 2014-10-17 | Heat source tower refrigerating and heating energy-saving equipment with ice storage and heat storage functions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410550836.9A CN104296286B (en) | 2014-10-17 | 2014-10-17 | Heat source tower refrigerating and heating energy-saving equipment with ice storage and heat storage functions |
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| CN104296286A CN104296286A (en) | 2015-01-21 |
| CN104296286B true CN104296286B (en) | 2017-05-03 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241142A (en) * | 2015-11-18 | 2016-01-13 | 国网天津市电力公司 | Control method of combined type cooling and heating system |
| CN107880856A (en) * | 2017-11-13 | 2018-04-06 | 常州莱尚纺织品有限公司 | A kind of paraffin wax emulsions ice slurry and preparation method thereof |
| CN108507083B (en) * | 2018-03-05 | 2020-04-03 | 浙江理工大学 | Ice-storage type heat source tower heat pump system device and method |
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| CN2467939Y (en) * | 2001-02-28 | 2001-12-26 | 浙江杭佳制冷设备安装有限公司 | Energy-accumulated heating equipment |
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| EP2664868A2 (en) * | 2012-05-15 | 2013-11-20 | Stiebel Eltron GmbH & Co. KG | Heat pump apparatus and evaporator for a heat pump device |
| CN204202065U (en) * | 2014-10-17 | 2015-03-11 | 江苏辛普森新能源有限公司 | A kind of heat source tower refrigerating and heating energy-saving equipment with ice-reserving heat accumulation function |
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| CN2467939Y (en) * | 2001-02-28 | 2001-12-26 | 浙江杭佳制冷设备安装有限公司 | Energy-accumulated heating equipment |
| CN1421654A (en) * | 2001-11-26 | 2003-06-04 | 陈万来 | Double-structure type environment protecting heat energy-recovering and refrigerating system |
| CN2560886Y (en) * | 2002-07-26 | 2003-07-16 | 中山市新迪能源技术研究开发有限公司 | Heat-accumulating type wind-cooling heat-pump water-cooling-heating integrated system |
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| CN104296286A (en) | 2015-01-21 |
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