CN104235984A - Heat source tower and heat pump air-conditioning unit with ice storage function - Google Patents
Heat source tower and heat pump air-conditioning unit with ice storage function Download PDFInfo
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- CN104235984A CN104235984A CN201410475573.XA CN201410475573A CN104235984A CN 104235984 A CN104235984 A CN 104235984A CN 201410475573 A CN201410475573 A CN 201410475573A CN 104235984 A CN104235984 A CN 104235984A
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Abstract
The invention discloses a heat source tower and heat pump air-conditioning unit with an ice storage function. The heat source tower and heat pump air-conditioning unit comprises a heat source tower, a heat pump host and a control system; the heat pump host comprises a compressor, a secondary oil separator, a condenser, a dry filter, an electronic expansion valve and an evaporator which are connected in sequence and form a loop; the evaporator comprises a refrigeration heat exchanger and an ice storage heat exchanger; the compressor and the secondary oil separator are connected through a primary oil return line; the primary oil return line is provided with an oil filter used for impurity filtration; moreover, a secondary oil return line is arranged, and the secondary oil return line is provided with an injection pump; the heat pump host is controlled by the control system to run under alternative of a refrigeration working condition, an ice storage working condition and a heating working condition. According to the heat source tower and heat pump air-conditioning unit disclosed by the invention, the traditional heat source tower and heat pump air-conditioning unit can have the ice storage function, and therefore ice storage is performed by fully utilizing summer urban valley electricity, and the operating cost is greatly reduced; moreover, oil return from the evaporator to the compressor is realized, so that the goal that the whole system can run stably and reliably is achieved.
Description
Technical field
The present invention relates to air-conditioner set technical field, be specifically related to a kind of heat source tower heat pump air-conditioner set with ice-reserving function.
Background technology
Heat source tower heat pump air-conditioner set is heat in absorption chamber outer air in a kind of winter for system provides heat, summer that the heat of system is discharged to outdoor combination accessory apparatus.Heat source tower heat pump air-conditioner set combines primarily of heat source tower, heat pump (little temperature difference water resource heat pump) and defroster.Heat pump is primarily of evaporimeter, compressor, expansion valve, secondary oil separator and condenser composition, and working medium circulates successively in five parts, constantly changes state, completes heat absorption and heat release.In summer, evaporative cooling is utilized to provide stable low-temperature receiver for source pump by heat source tower; In winter, heat source tower utilizes and to be below the freezing point mounting medium, the air wet bulb sensible heat energy that high efficiency extraction is below freezing, thus provides reliable thermal source for source pump.There is not the serious frosting of air-cooled heat pump and the limited problem of earth source heat pump suitable application region in heat source tower heat pump air-conditioner set, it changes the history that traditional Water cooled air conditioners is only suitable for the use of single cropping joint, instead of the refrigeration and heating mode of Environmental Cities unit refrigeration+oil burning boiler, is a revolution of field of air conditioning.Heat source tower heat pump air-conditioning unit structure is simple, easy to operate, is widely used in market, hospital, hotel, apartment, hotel.
At present, the major function of heat source tower heat pump air-conditioner set is cooling in summer, heating in winter, and namely heat source tower heat pump air conditioner unit can run under cooling condition and heating operating mode.But, in part occasion, have larger electricity price between peak and valley, as needs ice-reserving, then need separately to purchase ice-reserving unit, can initial cost be increased, and the utilization ratio of air-conditioner set be low, long construction period, take the useful space large, affect the integral arrangement of machine room.
In addition, secondary oil separator is the capital equipment in refrigeration unit, and its quality directly affects the combination property of refrigeration unit.At present, in heat source tower heat pump air-conditioner set, secondary oil separator is mainly used to be separated the oil entering into system from compressor.When compressor operation, cold-producing medium and oil are hot, refrigerant vapour by compression and oily resulting mixture leave compressor, enter secondary oil separator from oil content import to be separated, cold-producing medium after separation enters condenser through oil content outlet, and the refrigeration oil after separation sends compressor low-pressure side back to again through return line.But, although can service efficiency be the secondary oil separator of 99.9%, but still have the compressor lubricant oil of 0.1% to enter downstream condenser from secondary oil separator, and then enter into evaporimeter, what flow in evaporator shell is the mixture of cold-producing medium and compressor and freeze oil, flash in the process of gas at the cold-producing medium of liquid state, only have sub-fraction refrigeration oil to get back in compressor with gaseous refrigerant and participate in circulation, and most of refrigeration oil can accumulate in evaporimeter.Refrigeration oil accumulates in a large number in evaporator shell, compressor not only can be made cannot normally to work because lacking refrigeration oil, and can affect the evaporation efficiency of cold-producing medium in evaporimeter.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention proposes a kind of heat source tower heat pump air-conditioner set with ice-reserving function, by improving the structure of existing source pump, set up the evaporimeter and ice-reserving liquid heat-exchange system with ice-reserving function, and existing refrigerating evaporator is combined with ice-reserving evaporimeter, form the double evaporators that has refrigeration and ice-reserving dual-use function, the present invention can make existing thermal source pump heat pump air conditioner unit possess ice-reserving function, thus make full use of summer city paddy electricity and carry out ice-reserving, significantly reduce operating cost, in addition, the present invention is by setting up secondary returning oil pipe line, achieve the oil return from evaporator to compressor, thus reach whole system is stablized, the object of reliable operation.
Technical scheme of the present invention is achieved in that
A kind of heat source tower heat pump air-conditioner set with ice-reserving function, comprise heat source tower, heat pump main frame and control system, described heat pump main frame comprises and connects successively and form the compressor in loop, secondary oil separator, condenser, device for drying and filtering, electric expansion valve and evaporimeter, described evaporimeter comprises refrigerated heat exchanger and ice-reserving heat exchanger, described refrigerated heat exchanger is connected with the chilled water pipeline system of described heat source tower with chilled water outlet by chilled water import, and described ice-reserving heat exchanger is connected with an ice-reserving liquid heat-exchange system with the outlet of ice-reserving liquid by the import of ice-reserving liquid; Be connected by a return line between described compressor with described secondary oil separator, a described return line is provided with the oil strainer for contaminant filter; Separately be provided with secondary returning oil pipe line, described secondary returning oil pipe line is provided with jet pump, described jet pump has high pressure incoming end, suction side and low pressure outlet end, described high pressure access termination enters the oil content import of described secondary oil separator, described evaporimeter is accessed in described suction side, and described low pressure outlet end accesses the air entry of described compressor; Described control system controls described heat pump main frame and selects an operation and be operated in cooling condition, Xu Yuanzhong and heating operating mode.
As a further improvement on the present invention, described evaporimeter comprises a housing, there is in described housing the second accommodation space of the first accommodation space of the heat exchanger tube of accommodating described refrigerated heat exchanger and the heat exchanger tube of accommodating described ice-reserving heat exchanger, described chilled water import and described chilled water outlet are located at described shell one end, the inbound port of the heat exchanger tube of refrigerated heat exchanger described in described chilled water inlet communication, described chilled water outlet is communicated with the outbound port of the heat exchanger tube of described refrigerated heat exchanger; The import of described ice-reserving liquid and the outlet of described ice-reserving liquid are located at the described housing other end, the inbound port of the heat exchanger tube of ice-reserving heat exchanger described in described ice-reserving liquid inlet communication, the inbound port of the heat exchanger tube of ice-reserving heat exchanger described in described ice-reserving liquid outlet.
As a further improvement on the present invention, a described return line is also provided with oil return solenoid valve, the first visor and the first check valve, the pipeline of a described return line is drawn from the oil return opening of described secondary oil separator, and the pipeline of drawing with the oil storage tank from described compressor after described oil strainer, described oil return solenoid valve, described first visor, described first check valve is successively connected.
As a further improvement on the present invention, described secondary returning oil pipe line is also provided with the 3rd check valve, the second visor and ball valve, the pipeline of described secondary returning oil pipe line is drawn from described evaporimeter, the pipeline of drawing with the air entry from described compressor after described ball valve through the low pressure outlet end of described 3rd check valve, the suction side of described jet pump, described jet pump, described second visor is successively connected, and the pipeline that the high pressure incoming end of described jet pump and the oil content import from described secondary oil separator are drawn is connected.
As a further improvement on the present invention, described ice-reserving liquid heat-exchange system comprises coolant pump and ice storage unit, described coolant pump one end is exported with described ice-reserving liquid by ice-reserving liquid pipe and is connected, the other end is connected with described ice storage unit one end by ice-reserving liquid pipe, and the described ice storage unit other end is connected with the import of described ice-reserving liquid by ice-reserving liquid pipe.
The invention has the beneficial effects as follows: the invention provides a kind of heat source tower heat pump air-conditioner set with ice-reserving function, by improving the structure of existing source pump, set up the evaporimeter and ice-reserving liquid heat-exchange system with ice-reserving function, utilize the high corrosion protection design of existing evaporimeter and low go out liquid temp control, by setting up heat exchanger tube, form independently hydroecium, and existing refrigerating evaporator is combined formation double evaporators with ice-reserving evaporimeter, thus make full use of summer city paddy electricity and carry out ice-reserving, significantly reduce operating cost, namely the heat source tower heat pump air-conditioner set of band ice-reserving function of the present invention is that one can at cooling condition, run under heating operating mode and ice making operating mode, and the refrigeration unit of high energy efficiency ratio can be reached under these three kinds of operating modes.At present, in the transformation process of city central air conditioner system, adopt heat source tower heat pump to go transformation handpiece Water Chilling Units to add gas fired-boiler, the present invention energy-conservationly can reach more than 20% usually, if increase ice-reserving function, utilize city electricity price between peak and valley, through measuring and calculating, can energy-conservation more than 30%, and reduce the initial cost of ice ice-reserving, reduce system synthesis energy consumption and operating cost, produce good economic benefit and social benefit.In addition, the present invention by introducing jet pump on the secondary returning oil pipe line set up, utilize the pressure that the height pressure reduction between the oil content import of secondary oil separator and the air entry of compressor produces, gases at high pressure in secondary oil separator are transferred to compressor air suction mouth with certain flow rate, and under jet turbulent diffusion, by the mixture of the refrigeration oil in the evaporator shell of low pressure outlet end and cold-producing medium, injection is to the air entry of compressor, the amount of refrigeration oil in compressor is made to control to ensure that compressor is normal, in the scope of stable operation, thus the problem solved further from evaporator to compressor oil return difficulty, reach and whole system is stablized, the object of reliable operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
By reference to the accompanying drawings, make the following instructions:
1---compressor 11---air entry
12---exhaust outlet 2---secondary oil separator
21---oil content import 22---oil return opening
23---oil content outlet 3---condenser
4---device for drying and filtering 5---electric expansion valve
6---evaporimeter 61---chilled water import
The import of 62---chilled water outlet 63---ice-reserving liquid
64---ice-reserving liquid outlet 7---return line
71---oil strainer 72---oil return solenoid valve
73---first visor 74---first check valve
8---secondary returning oil pipe line 81---jet pump
82---the 3rd check valve 83---second visor
84---ball valve 9---ice-reserving liquid heat-exchange system
91---coolant pump 92---ice storage unit
Detailed description of the invention
As shown in Figure 1, a kind of heat source tower heat pump air-conditioner set with ice-reserving function, comprise heat source tower, heat pump main frame and control system, described heat pump main frame comprises and connects successively and form the compressor 1 in loop, secondary oil separator 2, condenser 3, device for drying and filtering 4, electric expansion valve 5 and evaporimeter 6, described evaporimeter comprises refrigerated heat exchanger and ice-reserving heat exchanger, described refrigerated heat exchanger is connected with the chilled water pipeline system of described heat source tower with chilled water outlet 62 by chilled water import 61, described ice-reserving heat exchanger is connected with an ice-reserving liquid heat-exchange system 9 with ice-reserving liquid outlet 64 by ice-reserving liquid import 63, be connected by a return line 7 between described compressor with described secondary oil separator, a described return line is provided with the oil strainer 71 for contaminant filter, separately be provided with secondary returning oil pipe line 8, described secondary returning oil pipe line is provided with jet pump 81, described jet pump has high pressure incoming end 811, suction side 812 and low pressure outlet end 813, described high pressure access termination enters the oil content import 21 of described secondary oil separator, described evaporimeter is accessed in described suction side, and described low pressure outlet end accesses the air entry 11 of described compressor, described control system controls described heat pump main frame and selects an operation and be operated in cooling condition, Xu Yuanzhong and heating operating mode.
Preferably, described evaporimeter comprises a housing, there is in described housing the second accommodation space of the first accommodation space of the heat exchanger tube of accommodating described refrigerated heat exchanger and the heat exchanger tube of accommodating described ice-reserving heat exchanger, described chilled water import and described chilled water outlet are located at described shell one end, the inbound port of the heat exchanger tube of refrigerated heat exchanger described in described chilled water inlet communication, described chilled water outlet is communicated with the outbound port of the heat exchanger tube of described refrigerated heat exchanger; The import of described ice-reserving liquid and the outlet of described ice-reserving liquid are located at the described housing other end, the inbound port of the heat exchanger tube of ice-reserving heat exchanger described in described ice-reserving liquid inlet communication, the inbound port of the heat exchanger tube of ice-reserving heat exchanger described in described ice-reserving liquid outlet.
Preferably, a described return line is also provided with oil return solenoid valve 72, first visor 73 and the first check valve 74, the pipeline of a described return line is drawn from the oil return opening 22 of described secondary oil separator, and the pipeline of drawing with the oil storage tank from described compressor after described oil strainer, described oil return solenoid valve, described first visor, described first check valve is successively connected.
Preferably, described secondary returning oil pipe line is also provided with the 3rd check valve 82, second visor 83 and ball valve 84, the pipeline of described secondary returning oil pipe line is drawn from described evaporimeter, the pipeline of drawing with the air entry from described compressor after described ball valve through the low pressure outlet end of described 3rd check valve, the suction side of described jet pump, described jet pump, described second visor is successively connected, and the pipeline that the high pressure incoming end of described jet pump and the oil content import from described secondary oil separator are drawn is connected.
Preferably, described ice-reserving liquid heat-exchange system comprises coolant pump 91 and ice storage unit 92, described coolant pump one end is exported with described ice-reserving liquid by ice-reserving liquid pipe and is connected, the other end is connected with described ice storage unit one end by ice-reserving liquid pipe, and the described ice storage unit other end is connected with the import of described ice-reserving liquid by ice-reserving liquid pipe.
In order to the more convenient scheme understanding the embodiment of the present invention, describe based on the above-mentioned structure to heat source tower heat pump air-conditioner set, below the operation of this heat source tower heat pump air-conditioner set be described in detail:
Evaporimeter of the present invention is divided into two heat exchangers, be respectively refrigerated heat exchanger and ice-reserving heat exchanger, refrigerated heat exchanger is connected with the chilled water pipeline system of heat source tower, namely heat exchange is carried out with the air-conditioner water system of routine, ice-reserving heat exchanger and ice-reserving liquid heat-exchange system carry out heat exchange, and during concrete enforcement, ice-reserving liquid heat-exchange system comprises the ice storage unit and coolant pump that are connected by pipeline.The operation of heat source tower heat pump air-conditioner set of the present invention can pass through control system, selects cooling condition or heating operating mode or Xu Yuanzhong.
When cooling condition, by heat pump the waste heat of indoor be transferred to heat source tower and emit, reach the object of refrigeration, detailed process is as follows: under the automatic control of control system, the mist of the high-temperature high-pressure refrigerant gas compressing out from the exhaust outlet 12 of compressor 1 and lubricating oil enters oil eliminator through the oil content import of oil eliminator 2 and is separated, refrigeration oil after separation is sent back in the oil storage tank of compressor low-pressure side through a return line again, refrigerant gas (containing a small amount of lubricating oil) after separation enters in condenser 3 through the oil content outlet 23 of oil eliminator, by with the cooling water heat exchange flowed through in the heat exchanger tube of condenser, on the one hand cooling water absorption refrigeration agent condensation heat and temperature rises, on the other hand, the gaseous refrigerant condenses of HTHP becomes the liquid refrigerant (containing a small amount of lubricating oil) of cryogenic high pressure, after liquid refrigerant flows out condenser, through device for drying and filtering 4 contaminant filter, after electric expansion valve 5 throttling controls, enter in the refrigerated heat exchanger of evaporimeter 6, by with the chilled water heat exchange flowed through in refrigerated heat exchanger, cold-producing medium evaporates and the heat of absorption refrigerating water on the one hand, and reduce chilled water water temperature, user is provided to use, reduce environment for use temperature, the low-temperature low-pressure refrigerant steam of one side compressor inlet flow flash-pot in addition, the refrigerant gas of HTHP is become after acting compression is carried out to refrigerant vapour, circulation compression like this, reach refrigeration object.
When Xu Yuanzhong, the low power consumption phase at night utilizing electric load very low, adopt ice-reserving heat exchanger refrigeration, cool storage medium is build-up ice, utilizes sensible heat and the latent heat characteristic of cool storage medium, cold is stored, detailed process is as follows: under the automatic control of control system, the mist of the high-temperature high-pressure refrigerant gas compressing out from the exhaust outlet of compressor 1 and lubricating oil enters oil eliminator through the oil content import of oil eliminator 2 and is separated, refrigeration oil after separation is sent back in the oil storage tank of compressor low-pressure side through return line again, refrigerant gas (containing a small amount of lubricating oil) after separation enters condenser 3 through oil content outlet, by with the cooling water heat exchange flowed through in the heat exchanger tube of condenser, on the one hand cooling water absorption refrigeration agent condensation heat and temperature rises, on the other hand, the gaseous refrigerant condenses of HTHP becomes the liquid refrigerant of cryogenic high pressure, after flowing out condenser, through device for drying and filtering 4 contaminant filter, after electric expansion valve 5 throttling controls, enter in the ice-reserving heat exchanger in evaporimeter 6, heat exchange is carried out with the ice-reserving liquid flowed through in ice-reserving heat exchanger, cold-producing medium evaporates and absorbs the heat of ice-reserving liquid on the one hand, and reduce the temperature of ice-reserving liquid, ice-reserving liquid is build-up ice, utilize sensible heat and the latent heat characteristic of cool storage medium (ice-reserving liquid), cold is stored, reach the object of ice conserve cold, the low-temperature low-pressure refrigerant steam of compressor inlet flow flash-pot on the other hand, the refrigerant gas of HTHP is become after acting compression is carried out to refrigerant vapour, circulation compression like this, reach refrigeration object.
Under heating operating mode, heat source tower directly gathers outdoor low-grade energy equipment.Heat source tower utilizes low enthalpy salt circulation solution to form the direct clammy air higher with enthalpy of liquid film on heat exchange layer surface and fully contacts, and cold is passed to air.The circulating fluid temperatures approach of transmission of heat by contact, in the wet-bulb temperature of outdoor air, is originated for water circulation heat pump air conditioner provides stable thermal source.Detailed process is prior art, does not repeat them here.
Oil return principle on a return line utilizes the oil return opening of secondary oil separator to send back in the oil storage tank of compressor low-pressure side by the refrigeration oil after being separated through secondary oil separator again through a return line, a return line arranges oil strainer, contaminant filter is carried out to oil return, ensures the oil return quality entered in compressor.A return line arranges visor, the mobility status of refrigeration oil in a return line can be observed at any time, play the effect monitoring and produce, avoid accident generation in production process.
Oil return principle on secondary returning oil pipe line is the pressure utilizing the height pressure reduction between the oil content import of secondary oil separator and the air entry of compressor to produce, gases at high pressure in secondary oil separator are transferred to compressor air suction mouth with certain flow rate, and under jet turbulent diffusion, by the mixture of the refrigeration oil in the evaporator shell of low pressure outlet end and cold-producing medium, injection is to the air entry of compressor, the amount of refrigeration oil in compressor is made to control to ensure that compressor is normal, in the scope of stable operation, thus the problem solved further from evaporator to compressor oil return difficulty, reach and whole system is stablized, the object of reliable operation.
The heat source tower heat pump air-conditioner set of band ice-reserving function of the present invention, it is with the difference of conventional heat source tower heat pump air-conditioner set: by improving the structure of existing source pump, set up the evaporimeter and ice-reserving liquid heat-exchange system with ice-reserving function, utilize the high corrosion protection design of existing evaporimeter and low go out liquid temp control, by setting up heat exchanger tube, form independently hydroecium, and existing refrigerating evaporator is combined formation double evaporators with ice-reserving evaporimeter, thus make full use of summer city paddy electricity and carry out ice-reserving, significantly reduce operating cost, namely the heat source tower heat pump air-conditioner set of band ice-reserving function of the present invention is that one can at cooling condition, run under heating operating mode and ice making operating mode, and the refrigeration unit of high energy efficiency ratio can be reached under these three kinds of operating modes.At present, in the transformation process of city central air conditioner system, adopt heat source tower heat pump to go transformation handpiece Water Chilling Units to add gas fired-boiler, the present invention energy-conservationly can reach more than 20% usually, if increase ice-reserving function, utilize city electricity price between peak and valley, through measuring and calculating, can energy-conservation more than 30%, and reduce the initial cost of ice ice-reserving, reduce system synthesis energy consumption and operating cost, produce good economic benefit and social benefit.In addition, the present invention by introducing jet pump on the secondary returning oil pipe line set up, utilize the pressure that the height pressure reduction between the oil content import of secondary oil separator and the air entry of compressor produces, by the mixture of the refrigeration oil in the evaporator shell of low pressure outlet end and cold-producing medium, injection is to the air entry of compressor, make that the amount of refrigeration oil in compressor controls can ensure that compressor is normal, in the scope of stable operation, thus the problem solved further from evaporator to compressor oil return difficulty, reach object whole system being stablized, runs reliably.
The heat source tower heat pump air-conditioner set of band ice-reserving function of the present invention can run under control of the control system and can reach the refrigeration unit of high energy efficiency ratio under these two kinds of operating modes under cooling condition, heating operating mode and ice making operating mode.During summer condition, utilize and be similar to the heat source tower of cooling tower, in air, discharge condensation heat, during winter condition, be beneficial to heat source tower and refrigerating medium absorbs heat from air.In the present invention, evaporimeter is water at the refrigerating medium of air-conditioning side (refrigerated heat exchanger), the refrigerating medium of ice-reserving side (ice-reserving heat exchanger) be added with corrosion inhibiter and foaming agent, mass ratio be 25% ~ 30% the ethylene glycol aqueous solution (being called for short: ethylene glycol), can also be the inorganic salts antifreeze solution of the band corrosion inhibiter of preparation.When running under cooling condition, the chilled water leaving water temperature of heat source tower is 7 DEG C; When running under ice making operating mode, the refrigerating medium outlet temperature of ice-reserving liquid heat-exchange system is-5 DEG C ~-15 DEG C, and under heating operating mode, the air conditioning hot leaving water temperature of heat source tower is 45 DEG C.
Above embodiment is with reference to accompanying drawing; to a preferred embodiment of the present invention will be described in detail; those skilled in the art by carrying out amendment on various forms or change to above-described embodiment, but when not deviating from essence of the present invention, drops within protection scope of the present invention.
Claims (5)
1. the heat source tower heat pump air-conditioner set with ice-reserving function, it is characterized in that: comprise heat source tower, heat pump main frame and control system, described heat pump main frame comprises and connects successively and form the compressor (1) in loop, secondary oil separator (2), condenser (3), device for drying and filtering (4), electric expansion valve (5) and evaporimeter (6), described evaporimeter comprises refrigerated heat exchanger and ice-reserving heat exchanger, described refrigerated heat exchanger is connected with the chilled water pipeline system of described heat source tower with chilled water outlet (62) by chilled water import (61), described ice-reserving heat exchanger is connected with an ice-reserving liquid heat-exchange system (9) with ice-reserving liquid outlet (64) by ice-reserving liquid import (63), be connected by a return line (7) between described compressor with described secondary oil separator, a described return line is provided with the oil strainer (71) for contaminant filter, separately be provided with secondary returning oil pipe line (8), described secondary returning oil pipe line is provided with jet pump (81), described jet pump has high pressure incoming end, suction side and low pressure outlet end, described high pressure access termination enters the oil content import (21) of described secondary oil separator, described evaporimeter is accessed in described suction side, and described low pressure outlet end accesses the air entry (11) of described compressor, described control system controls described heat pump main frame and selects an operation and be operated in cooling condition, Xu Yuanzhong and heating operating mode.
2. the heat source tower heat pump air conditioner of band ice-reserving function according to claim 1, it is characterized in that: described evaporimeter comprises a housing, there is in described housing the second accommodation space of the first accommodation space of the heat exchanger tube of accommodating described refrigerated heat exchanger and the heat exchanger tube of accommodating described ice-reserving heat exchanger, described chilled water import and described chilled water outlet are located at described shell one end, the inbound port of the heat exchanger tube of refrigerated heat exchanger described in described chilled water inlet communication, described chilled water outlet is communicated with the outbound port of the heat exchanger tube of described refrigerated heat exchanger; The import of described ice-reserving liquid and the outlet of described ice-reserving liquid are located at the described housing other end, the inbound port of the heat exchanger tube of ice-reserving heat exchanger described in described ice-reserving liquid inlet communication, the inbound port of the heat exchanger tube of ice-reserving heat exchanger described in described ice-reserving liquid outlet.
3. the heat source tower heat pump air conditioner of band ice-reserving function according to claim 1, it is characterized in that: a described return line is also provided with oil return solenoid valve (72), the first visor (73) and the first check valve (74), the pipeline of a described return line is drawn from the oil return opening (22) of described secondary oil separator, and the pipeline of drawing with the oil storage tank from described compressor after described oil strainer, described oil return solenoid valve, described first visor, described first check valve is successively connected.
4. the heat source tower heat pump air conditioner of band ice-reserving function according to claim 1, it is characterized in that: described secondary returning oil pipe line is also provided with the 3rd check valve (82), second visor (83) and ball valve (84), the pipeline of described secondary returning oil pipe line is drawn from described evaporimeter, successively through described 3rd check valve, the suction side of described jet pump, the low pressure outlet end of described jet pump, described second visor is connected with the pipeline of drawing with the air entry from described compressor after described ball valve, and the pipeline that the high pressure incoming end of described jet pump and the oil content import from described secondary oil separator are drawn is connected.
5. the heat source tower heat pump air-conditioner set of band ice-reserving function according to claim 2, it is characterized in that: described ice-reserving liquid heat-exchange system comprises coolant pump (91) and ice storage unit (92), described coolant pump one end is exported with described ice-reserving liquid by ice-reserving liquid pipe and is connected, the other end is connected with described ice storage unit one end by ice-reserving liquid pipe, and the described ice storage unit other end is connected with the import of described ice-reserving liquid by ice-reserving liquid pipe.
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| CN105202813A (en) * | 2015-09-29 | 2015-12-30 | 南京苏佰能能源科技有限公司 | Air source heat pump unit for crude oil heating |
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| CN101957034A (en) * | 2010-05-14 | 2011-01-26 | 法凯涞玛冷暖设备（杭州）有限公司 | Energy storage heat pump air conditioner |
| CN102252453A (en) * | 2011-05-18 | 2011-11-23 | 肖鹏 | Machine integrating refrigeration, ice-making and heating |
| CN102269485A (en) * | 2011-07-12 | 2011-12-07 | 天津美意机电设备工程有限公司 | Buried-pipe-type ground-source heat pump set |
| CN102692054A (en) * | 2012-04-26 | 2012-09-26 | 江苏辛普森新能源有限公司 | Cooling and heating special unit of heat source tower |
| CN203274090U (en) * | 2013-04-26 | 2013-11-06 | 周平中 | Closed ice storage air conditioner heat pump device |
| CN204202063U (en) * | 2014-09-18 | 2015-03-11 | 江苏辛普森新能源有限公司 | With the heat source tower heat pump air-conditioner set of ice-reserving function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202813A (en) * | 2015-09-29 | 2015-12-30 | 南京苏佰能能源科技有限公司 | Air source heat pump unit for crude oil heating |
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