CN1465941A - Direct evaporation close type external ice-melting heat-pump air-conditioner - Google Patents
Direct evaporation close type external ice-melting heat-pump air-conditioner Download PDFInfo
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Abstract
The air conditioning unit is composed of the outdoor unit and the water loop. The outdoor unit includes the compressor, the four-way valve, the heat exchanger, the fan, the liquid-vapor separator, the closed type trough for storing ice, the solenoid valve and the electric control valve. The water loop includes the tail end of the unit, the water collector, the water separator and the water constant pressure part. The water in the closed type trough is connected to the water in the water loop of refrigerant/water heat exchanger so as to form the loop locked outer melting ice system. The invention prevents shortcomings of water reverse flow and large hydrostatic pressure on the solenoid valve etc. and raises evaporating temperature so as to save energy. The unit provides five modes of operation: storing ice, melting ice and cooling, cooling only, united cooling and heating.
Description
Technical field
The invention belongs to cold-storage and thermal storage type heat pump air conditioner field.
Background technology
Along with the high speed development of economic construction, countries in the world face the power supply shortage situation.Therefore, online " peak load shifting " of power supply is problem anxious to be solved.Along with the enforcement of worldwide time-of-use tariffs, the cold-storage and thermal storage type air conditioner begins developed, has been applied in direct vaporation-type list indoor set list cold-peace heat pump type air conditioning system and the pump type heat VRV air-conditioning system since nineteen ninety-five.As Chinese patent ZL99214599.6, name is called " a kind of cold-storage and thermal storage type heat pump air conditioner "; Chinese patent ZL97236089.1, name be called " adopt cold-producing medium cross cold in ice-melt releasing cold way cold accumulation air-conditioner device " and " development and the exploitation of family formula ice-chilling air conditioning system " literary composition of on " HVAC " of fourth phase calendar year 2001, delivering in, the technical scheme of ice cold-storage in cold and hot pump air conditioner system all disclosed.The common feature of said system is: (1) each system utilizes cheap electric power at night, cold is stored in the Ice Storage Tank, when daytime during to the room cooling, utilize the cold of ice storage to make high pressure liquid refrigerant realize crossing significantly cold and reduce the condensation temperature of system, to reduce the power consumption of daytime during refrigerating operaton; Otherwise, when system's heating operation, system utilizes cheap electric power at night, heat is stored in the Ice Storage Tank, when daytime during to the room heat supply, utilize the heat of hot water storage to improve the evaporating temperature of system, reducing the power consumption of daytime during heating operation, thereby realize " peak load shifting " of power system; (2) generally adopt the coiled Ice Storage Tank, freeze/thaw and temperature just take place and raise and change with reducing in the water in the cell body, do not join mixedly mutually with the water in the air-conditioner water system, generally adopt the open type Ice Storage Tank; (3) being interior ice-melting mode releases cold.Above-mentioned utilization ice and hot water accumulation of energy, refrigerant condition when improving air-conditioning system and moving daytime reduces that to consume electric power be the effective ways that cold-producing medium are delivered directly to indoor unit or VRV system peak load shifting.But when cooling or heat supply, compressor must put into operation this type systematic by day; Particularly, low-temperature cold water can not be produced, cold air distribution can not be realized for the system that produces cold water.For this reason, Japanese mitsubishi electric Co., Ltd. discloses the directly outer ice-melt chilling air conditioning system of evaporation of KAH type, as shown in accompanying drawing 1 at " Mitsubishi Electric's skill newspaper " Vol.73 in 1999 among the No5.This system has adopted the double evaporators structure, except that the essential parts of refrigeration system, also is provided with cold-producing medium/refrigerating medium heat exchanger, coiled Ice Storage Tank, coolant pump, water route electric T-shaped valve etc. and is used for the cold equipment of cold-storage/get in outdoor unit.When night, cold-storage moved, utilize cold-producing medium/refrigerating medium heat exchanger as evaporimeter, coolant pump promotes refrigerating medium and circulates between cold-producing medium/refrigerating medium heat exchanger and coiled Ice Storage Tank, and the cold that refrigeration system is produced is stored in the water of coiled Ice Storage Tank, and it is frozen.Freeze daytime/when getting cold operation, utilize the refrigerant/water heat exchanger to produce cold water as evaporimeter, because the coiled Ice Storage Tank is that cold mode is got in outer ice-melt, the cold water of producing enters the coolant-temperature gage of going into of air conditioning terminal by water route electric three passes valve regulation; When indoor load hour, can also from the coiled Ice Storage Tank, get cold separately.This system has overcome aforementioned and has carried out the deficiency of peak load shifting air-conditioning system by changing refrigerant condition, can realize the cold air distribution function effectively.But because system adopts the double evaporators structure, increased system cost, reduced the evaporating temperature of runtime system at night, be unfavorable for further energy-conservation.System adopts open pallets tubular type Ice Storage Tank in addition, and when using in skyscraper, it is big that the air-conditioning water pump flow backwards can occur after shutting down, the water route electric T-shaped valve bears hydrostatic, open and regulate defectives such as difficulty, and the air conditioner water pump lift is big, and power consumption is big.
Summary of the invention
At above-mentioned the deficiencies in the prior art, the purpose of this invention is to provide a kind of direct evaporation closed-type external ice thawing heat pump air conditioner, it can avoid flow backwards, reduction magnetic valve and electric control valve to bear hydrostatic, can reduce again simultaneously and get cold temperature, realize cold air distribution, reduction air-conditioner water system pump head and system synthesis originally.
In order to reach above-mentioned goal of the invention, technical scheme of the present invention realizes as follows: a kind of direct evaporation closed-type external ice thawing heat pump air conditioner, and it is by compressor, cross valve, air cooling heat exchanger and/or water cooling heat exchanger, the air cooling heat exchanger fan, high pressure receiver, device for drying and filtering, the liquid three-way solenoid valve, the gas three-way solenoid valve, the ice-reserving heating power expansion valve, cooling heating power expansion valve, heat and use heating power expansion valve, cooling check valve, heat and use check valve, the refrigerant/water heat exchanger, gas-liquid separator, the enclosed Ice Storage Tank, the outdoor unit that magnetic valve and electric control valve constitute and by air conditioning terminal, water collector, water knockout drum, the air conditioner water loop that air conditioner water level pressure parts constitute is formed; Its design feature is: the gas-liquid separator outlet links to each other with compressor inlet, compressor exhaust pipe links to each other with the cross valve air inlet, the gas outlet of cross valve links to each other with the air inlet of gas-liquid separator, two other interface of cross valve links to each other with the inlet of air cooling heat exchanger and/or water cooling heat exchanger and the outlet of gas three-way solenoid valve respectively, the outlet of air cooling heat exchanger and/or water cooling heat exchanger with by cooling check valve, heat with check valve and cooling heating power expansion valve, heat the check valve/expansion valve component inlet that constitutes with heating power expansion valve and link to each other, other three outlets of check valve/expansion valve component are respectively with refrigerant/water heat exchanger coolant channel inlet with by high pressure receiver, device for drying and filtering, going out of high pressure receiver/device for drying and filtering/three-way solenoid valve assembly that the liquid three-way solenoid valve constitutes, inlet links to each other; Another outlet of liquid three-way solenoid valve links to each other with enclosed Ice Storage Tank refrigerant inlet with heating power expansion valve by ice-reserving, and enclosed Ice Storage Tank refrigerant outlet and the outlet of refrigerant/water heat exchanger coolant channel are connected respectively to two inlets of gas three-way solenoid valve; Air conditioner water returns water collector from air conditioning terminal, air conditioner water after the pressurization of air-conditioning water pump enters the air conditioner water access road of enclosed Ice Storage Tank by magnetic valve and is controlled the discharge of refrigerant/water heat exchanger air conditioner water inlet or outlet by electric control valve, together enter water knockout drum after converging by the two-way air conditioner water of enclosed Ice Storage Tank air conditioner water outlet and refrigerant/water heat exchanger air conditioner water out, (air conditioner water is injected air conditioning terminal by water knockout drum.
According to above-mentioned technical scheme, the inlet of described magnetic valve, electric control valve and air conditioner water delivery side of pump join, and the outlet of electric control valve and refrigerant/water heat exchanger air conditioner water inlet join.
According to above-mentioned technical scheme, the inlet of described magnetic valve, electric control valve and refrigerant/water heat exchanger air conditioner water out join.
According to above-mentioned technical scheme, described enclosed Ice Storage Tank comprises housing, melt ice on coil, cold-producing medium separating tube and cold-producing medium collector tube, the two ends of housing are connected with the end socket sealing respectively, melt ice on coil forms multitube journey coolant channel by bend pipe and straight tube, be fixed in the housing by the set tube sheet in two ends in the housing with through hole, melt ice on coil outer surface and shell inner surface space form the air conditioner water passage, radially be provided with a plurality of water deflection plates that are staggeredly placed in the air conditioner water passage, melt ice on coil set inlet is connected with the cold-producing medium separating tube, the cold-producing medium separating tube joins with the refrigerant inlet that is located on the end socket, melt ice on coil set outlet is connected with cold-producing medium return-air collector, cold-producing medium return-air collector joins the inlet of air conditioner water passage with the refrigerant outlet that is located on the end socket, the outlet of air conditioner water passage respectively be located at end socket on the air conditioner water oral siphon be connected with the air conditioner water outlet pipe.
The present invention is owing to having adopted enclosed Ice Storage Tank and above-mentioned structure type of attachment compared with prior art to have following technique effect:
(1) compares with ice-melt ice-storage air-conditioning system in the existing direct evaporation, directly the evaporation closed-type external ice thawing air-conditioning apparatus need not be driven cold machine then can directly get cold from mixture of ice and water daytime, and it is low to get cold water temperature, can provide from low to high than the cold water in the large-temperature range to the difference in functionality user; Enter water velocity in the enclosed Ice Storage Tank by adjusting, can regulate the cooling rate rate of getting very on a large scale.
(2) directly evaporating outer ice-melt chilling air conditioning system with Mitsubishi KAH type compares, directly the evaporation closed-type external ice thawing air-conditioning apparatus has not only reduced a cold-producing medium/refrigerant heat exchanger and coolant pump, reduce system cost, reduced secondary heat-exchange procedure, and solved effectively that air conditioner water pours in down a chimney, pump housing valve body bears in the big or pipe of hydrostatic pressing and vacuum phenomenon occurs, makes water system simpler and more direct, safe, reliably.
(3) the present invention utilizes cold-producing medium directly to evaporate the heat that absorbs the cold-storage trough inner water and makes water freezing when ice-reserving moves, and makes the evaporating temperature of refrigeration system on average raise 3～5 ℃, has improved the Energy Efficiency Ratio of refrigeration system, and its energy-saving effect is obvious; Do not need other thermal source winter, and directly utilize the storage cold-hot pump air-conditioning system to heat, and realized air-conditioning equipment changes in temperature unification requirement, and the investment of having saved heating equipment has very important meaning to advancing energy accumulation air conditioner device miniaturization, family oriented process.
Description of drawings
Fig. 1 directly evaporates outer ice-melt chilling air conditioning system connection layout in the prior art;
Fig. 2 is the structure connection layout of one embodiment of the present invention;
Fig. 3 is the structure connection layout of another embodiment of the invention.
The invention will be further described below in conjunction with accompanying drawing and concrete implementation of an application example.
The specific embodiment
Each unit number and title are as follows in the accompanying drawing:
1 outdoor unit; 2 compressors; 3 air cooling heat exchangers and/or water cooling heat exchanger; 4 air cooling heat exchanger fans; 5 high pressure receivers; 6 devices for drying and filtering; 7 liquid three-way solenoid valves; 8 cooling heating power expansion valves; 9 refrigerant/water heat exchangers; 10 ice-reserving heating power expansion valves; 12 gas-liquid separators; 15 air conditioning terminals; 16 water collectors; 17 air-conditioning water pumps; 19 water knockout drums; 20 air conditioner water constant pressure valves; 21 heat and use heating power expansion valve; 22 cooling check valves; 23 heat and use check valve; 24 enclosed Ice Storage Tank; 25 magnetic valves; 26 electric control valves; 27 gas three-way solenoid valves; 28 cross valves.
Embodiment 1
Accompanying drawing 2 is a kind of embodiments of the present invention, is referred to as directly to evaporate closed-type external ice thawing heat pump air conditioner in parallel, and it comprises outdoor unit 1 and the air conditioner water loop two parts that are made of air conditioning terminal 15, water collector 16, water knockout drum 19, air conditioner water level pressure parts 20.Outdoor unit 1 be by compressor 2, cross valve 28, air cooling heat exchanger and/or water cooling heat exchanger 3, air cooling heat exchanger fan 4, high pressure receiver 5, device for drying and filtering 6, liquid three-way solenoid valve 7, gas three-way solenoid valve 27, ice-reserving with heating power expansion valve 10, cooling heating power expansion valve 8, heat with heating power expansion valve 21, cooling check valve 22, heat with check valve 23, refrigerant/water heat exchanger 9, gas-liquid separator 12, enclosed Ice Storage Tank 24, magnetic valve 25 and electric control valve 26.
For air conditioner water flowed to, the characteristics of present embodiment were that enclosed Ice Storage Tank 24 is the parallel way setting with refrigerant/water heat exchanger 9.In refrigerant loop, gas-liquid separator 12 outlets link to each other with compressor 2 air inlets, compressor 2 blast pipes link to each other with cross valve 28 air inlets, the gas outlet of cross valve 28 links to each other with the air inlet of gas-liquid separator 12, two other interface of cross valve 28 links to each other with the inlet of air cooling heat exchanger and/or water cooling heat exchanger 3 respectively and links to each other with the outlet of gas three-way solenoid valve 27, the outlet of air cooling heat exchanger and/or water cooling heat exchanger 3 with by cooling check valve 22, heat with check valve 23 and cooling heating power expansion valve 8, heat the check valve/expansion valve component inlet that constitutes with heating power expansion valve 21 and link to each other, other three outlets of check valve/expansion valve component are respectively with refrigerant/water heat exchanger 9 coolant channels inlet with by high pressure receiver 5, device for drying and filtering 6, the gateway of high pressure receiver/device for drying and filtering/three-way solenoid valve assembly that liquid three-way solenoid valve 7 constitutes links to each other; Another outlet of liquid three-way solenoid valve 7 links to each other with enclosed Ice Storage Tank 24 refrigerant inlets with heating power expansion valve 10 by ice-reserving, enclosed Ice Storage Tank 24 refrigerant outlets and the outlet of refrigerant/water heat exchanger 9 coolant channels are connected respectively to two inlets of gas three-way solenoid valve 27, form refrigerant loop.In the air conditioner water loop, air conditioner water returns water collector 16 from air conditioning terminal 15, after 17 pressurizations of air-conditioning water pump, enter enclosed Ice Storage Tank 24 air conditioner water access roades and enter refrigerant/water heat exchanger 9 air conditioner water access roades through magnetic valve 25 respectively through electric control valve 26, after converging, the two-way air conditioner water that is exported by outlet of the air conditioner water of enclosed Ice Storage Tank 24 and refrigerant/water heat exchanger 9 air conditioner waters together enters water collector 19, enter air conditioning terminal 15 again, finish the air conditioner water circulation.This air-conditioning system has ice-reserving, ice groove ice-melt cooling, the independent cooling of cold machine, cold machine and ice groove associating cooling, five kinds of operational modes of cold mechanism heat according to the different open and-shut modes of cross valve 28, liquid three-way solenoid valve 7, gas three-way solenoid valve 27 and magnetic valve 25, electric control valve 26.
A. the total ice-reserving of summer operation, ice groove ice-melt cooling, the independent cooling of cold machine, cold machine are united four kinds of operational modes of cooling with the ice groove.
(a) when system operates in the ice-reserving pattern, compressor 2, heat exchanger fan 4 operations in the refrigerant loop, cross valve 28 does not power on, and liquid three-way solenoid valve 7 powers on gas three-way solenoid valve 27; The air conditioner water loop is out of service.The gaseous refrigerant of low-temp low-pressure is collapsed into the gaseous refrigerant of HTHP by compressor 2, flow into air cooling heat exchanger (and/or water cooling heat exchanger) 3 through cross valve 28, became cold anticyclone liquid through outdoor air cooling, condensation, entered in the high pressure receiver 5 by cooling check valve 22 again; The high pressure liquid refrigerant drying filter 6 that flows out by high pressure receiver 5, liquid three-way solenoid valve 7 backs ice-reserving with heating power expansion valve 10 in the throttling step-down become the liquid state and the gaseous state mix refrigerant of low-temp low-pressure, and enter enclosed Ice Storage Tank 24 coolant channels, the heat of vaporization of water becomes the gaseous refrigerant of low-temp low-pressure in this liquid refrigerant absorbs enclosed Ice Storage Tank 24 air conditioner water cavitys, the melt ice on coil surface is frozen, realize freezing the ice-reserving purpose; The gaseous refrigerant of low-temp low-pressure returns compressor 2 through gas three-way solenoid valve 27, cross valve 28, gas-liquid separator 12, finishes the ice-reserving circulation.
(b) when system operated in ice groove ice-melt cooling pattern, refrigerant loop quit work, and compressor 2, heat exchanger fan 4 are out of service, and cross valve 28, liquid three-way solenoid valve 7 all do not power on gas three-way solenoid valve 27; Air-conditioning water pump 17 operations in the air conditioner water loop, magnetic valve 25 is opened, and electric control valve 26 is opened certain aperture, regulates the air conditioner water leaving water temperature.Air conditioner water returns water collector 16 by air conditioning terminal 15, through 17 pressurizations of air-conditioning water pump, a part enters the air conditioner water passage of refrigerant/water heat exchanger 3 through electric control valve 26, another part enters enclosed Ice Storage Tank 24 air conditioner water cavitys through magnetic valve 25 and gets cold, the two-way air conditioner water converges after water knockout drum 19 flows to air conditioning terminal 15, finishes the circulation of ice groove ice-melt cooling.
(c) when system operates in the independent cooling pattern of cold machine, compressor 2, heat exchanger fan 4 operations in the refrigerant loop, cross valve 28, liquid three-way solenoid valve 7 all do not power on gas three-way solenoid valve 27; Air-conditioning water pump 17 operations in the air conditioner water loop, magnetic valve 25 cuts out, electric control valve 26 standard-sized sheets.The gaseous refrigerant of low-temp low-pressure is collapsed into the gaseous refrigerant of HTHP by compressor 2, flow into air cooling heat exchanger and/or water cooling heat exchanger 3 through cross valve 28, became cold anticyclone liquid through outdoor air cooling, condensation, entered in the high pressure receiver 5 by cooling check valve 22 again; By the high pressure liquid refrigerant drying filter 6 of high pressure receiver 5 outflows, the liquid state and the gaseous state mix refrigerant of liquid three-way solenoid valve 7 back throttling step-down in cooling heating power expansion valve 8 becoming low-temp low-pressures, and enter refrigerant/water cold heat exchanger 3 coolant channels, become the gaseous refrigerant of low-temp low-pressure in the heat of vaporization of this liquid refrigerant absorption air conditioner water, make the air conditioner water cooling simultaneously, realize producing the cold water purpose; The gaseous refrigerant of low-temp low-pressure returns compressor 2 through gas three-way solenoid valve 27, cross valve 28, gas-liquid separator 12.In the air conditioner water loop, air conditioner water returns water collector 16 by air conditioning terminal 15, through 17 pressurizations of air-conditioning water pump, enter the air conditioner water passage of refrigerant/water cold heat exchanger 3 through electric control valve 26, the cold of absorption refrigeration agent low-temperature refrigerant and lowering the temperature, flow to air conditioning terminal 15 through water knockout drum 19 again, finish the independent cooling circulation of cold machine.
(d) when system operates in cold machine with ice groove associating cooling pattern, compressor 2,4 operations of air cooling heat exchanger fan in the refrigerant loop, cross valve 28, liquid three-way solenoid valve 7 all do not power on gas three-way solenoid valve 27; Air-conditioning water pump 17 operations in the air conditioner water loop, magnetic valve 25 is opened, and electric control valve 26 is opened certain aperture, adjusts coolant-temperature gage.In refrigerant loop, the gaseous refrigerant of low-temp low-pressure is collapsed into the gaseous refrigerant of HTHP by compressor 2, flow into air cooling heat exchanger and/or water cooling heat exchanger 3 through cross valve 28, became cold anticyclone liquid through outdoor air cooling, condensation, entered in the high pressure receiver 5 by cooling check valve 22 again; By the high pressure liquid refrigerant drying filter 6 of high pressure receiver 5 outflows, the liquid state and the gaseous state mix refrigerant of liquid three-way solenoid valve 7 back throttling step-down in cooling heating power expansion valve 8 becoming low-temp low-pressures, and enter refrigerant/water cold heat exchanger 3 coolant channels, become the gaseous refrigerant of low-temp low-pressure in the heat of vaporization of this liquid refrigerant absorption air conditioner water, make the air conditioner water cooling simultaneously, realize producing the cold water purpose; The gaseous refrigerant of low-temp low-pressure returns compressor 2 through gas three-way solenoid valve 27, cross valve 28, gas-liquid separator 12.In the air conditioner water loop, air conditioner water returns water collector 16 by air conditioning terminal 15, through 17 pressurizations of air-conditioning water pump, a part enters the air conditioner water passage of refrigerant/water heat exchanger 3 through electric control valve 26, another part enters enclosed Ice Storage Tank 24 air conditioner water cavitys through magnetic valve 25 and gets cold, the two-way air conditioner water converges after water knockout drum 19 flows to air conditioning terminal 15, finishes cold machine and the circulation of ice groove associating cooling.
B. the hot operational mode of cold mechanism in winter.
(e) when system operates in cold machine-processed heat pattern, compressor 2, heat exchanger fan 4 operations in the refrigerant loop, cross valve 28 powers on, and liquid three-way solenoid valve 7 does not all power on gas three-way solenoid valve 27.Air-conditioning water pump 17 operations in the air conditioner water loop, magnetic valve 25 cuts out, electric control valve 26 standard-sized sheets.The gaseous refrigerant of low-temp low-pressure is collapsed into the gaseous refrigerant of HTHP by compressor 2, flow into refrigerant/water cold heat exchanger 3 through cross valve 28, gas three-way solenoid valve 27, became cold anticyclone liquid through air conditioner water cooling, condensation, make the air conditioner water temperature rise, reach and produce the air conditioning hot purpose.Cold-producing medium enters in the high pressure receiver 5 through heating with check valve 23; By the high pressure liquid refrigerant drying filter 6 of high pressure receiver 5 outflows, the liquid state and the gaseous state mix refrigerant of liquid three-way solenoid valve 7 back throttling step-down in heating becoming low-temp low-pressures with heating power expansion valve 21, go forward side by side into air cooling heat exchanger and/or water cooling heat exchanger 3 coolant channels, absorb the gaseous refrigerant that the air heat of vaporization becomes low-temp low-pressure at this liquid refrigerant; The gaseous refrigerant of low-temp low-pressure returns compressor 2 through cross valve 28, gas-liquid separator 12, finishes the cold-producing medium circulation.In the air conditioner water loop, air conditioner water returns water collector 16 by air conditioning terminal 15, through 17 pressurizations of air-conditioning water pump, enter the air conditioner water passage of refrigerant/water cold heat exchanger 3 through electric control valve 26, the heat of absorption refrigeration agent low-temperature refrigerant and heating up, flow to air conditioning terminal 15 through water knockout drum 19 again, finish cold machine-processed thermal cycle.
Accompanying drawing 3 is another embodiment of the present invention, is referred to as directly evaporation series connection closed-type external ice thawing heat pump air conditioner.Refrigerant loop and the foregoing description of this embodiment are identical, only air conditioner water loop difference.It is that magnetic valve 25 is arranged between outlet of refrigerant/water heat exchanger 9 aquaporins and the enclosed Ice Storage Tank 24 aquaporins inlet, electric control valve 26 is arranged on enclosed Ice Storage Tank 24 air conditioner waters and enters the mouth, on the pipeline section of outlet parallel connection, it is air conditioner water enters refrigerant/water heat exchanger 9 through 17 pressurizations of air-conditioning water pump air conditioner water passage, it goes out the moisture two-way, one the tunnel enters the air conditioner water cavity of enclosed Ice Storage Tank 24 through magnetic valve 25, another road confuses behind electric control valve 26 and by the air conditioner water that the air conditioner water outlet of enclosed Ice Storage Tank 24 is flowed out and flows to water collector 19, enters air conditioning terminal 15 again.This embodiment still has ice-reserving, ice groove ice-melt cooling, the independent cooling of cold machine, cold machine and ice groove associating cooling, five kinds of operational modes of cold mechanism heat according to the different open and-shut modes of cross valve 28, liquid three-way solenoid valve 7, gas three-way solenoid valve 27 and magnetic valve 25, electric control valve 26.A. the total ice-reserving of summer operation, ice groove ice-melt cooling, the independent cooling of cold machine, cold machine are united four kinds of operational modes of cooling with the ice groove.
(a) when system operates in the ice-reserving pattern, identical with the ice-reserving pattern that above-mentioned embodiment " is directly evaporated closed-type external ice thawing heat pump air conditioner in parallel ".
(b) when system operated in ice groove ice-melt cooling pattern, refrigerant loop quit work, and compressor 2, heat exchanger fan 4 are out of service, and cross valve 28, liquid three-way solenoid valve 7 all do not power on gas three-way solenoid valve 27.Air-conditioning water pump 17 operations in the air conditioner water loop, magnetic valve 25 is opened, and electric control valve 26 is opened certain aperture, regulates the air conditioner water leaving water temperature.Air conditioner water returns water collector 16 by air conditioning terminal 15, enter the air conditioner water passage of refrigerant/water cold heat exchanger 3 through 17 pressurizations of air-conditioning water pump, the air conditioner water that is flowed out by refrigerant/water cold heat exchanger 3 is divided into two-way, one the tunnel enters enclosed Ice Storage Tank 24 air conditioner water cavitys through magnetic valve 25 gets cold, another road electric control valve 26 of flowing through, the low-temperature air conditioner water that flows out with enclosed Ice Storage Tank 24 air conditioner water cavitys converges after water knockout drum 19 flows to air conditioning terminal 15, enters next circulation.
(c) when system operates in the independent cooling pattern of cold machine, identical with the independent cooling pattern of cold machine that the foregoing description " directly evaporates closed-type external ice thawing heat pump air conditioner in parallel ".
(d) when system operates in cold machine with ice groove associating cooling pattern, compressor 2, heat exchanger fan 4 operations in the refrigerant loop, cross valve 28, liquid three-way solenoid valve 7 all do not power on gas three-way solenoid valve 27; Air-conditioning water pump 17 operations in the air conditioner water loop, magnetic valve 25 is opened, and electric control valve 26 is opened certain aperture, adjusts coolant-temperature gage.In refrigerant loop, the gaseous refrigerant of low-temp low-pressure is collapsed into the gaseous refrigerant of HTHP by compressor 2, flow into air cooling heat exchanger (and/or water cooling heat exchanger) 3 through cross valve 28, became cold anticyclone liquid through outdoor air cooling, condensation, entered in the high pressure receiver 5 by cooling check valve 22 again; By the high pressure liquid refrigerant drying filter 6 of high pressure receiver 5 outflows, the liquid state and the gaseous state mix refrigerant of liquid three-way solenoid valve 7 back throttling step-down in cooling heating power expansion valve 8 becoming low-temp low-pressures, and enter refrigerant/water cold heat exchanger 3 coolant channels, become the gaseous refrigerant of low-temp low-pressure in the heat of vaporization of this liquid refrigerant absorption air conditioner water, make the air conditioner water cooling simultaneously, realize producing the cold water purpose; The gaseous refrigerant of low-temp low-pressure returns compressor 2 through gas three-way solenoid valve 27, cross valve 28, gas-liquid separator 12.In the air conditioner water loop, air conditioner water returns water collector 16 by air conditioning terminal 15, enter the air conditioner water passage of refrigerant/water cold heat exchanger 3 through 17 pressurizations of air-conditioning water pump, the air conditioner water that is flowed out by refrigerant/water cold heat exchanger 3 is divided into two-way, one the tunnel enters enclosed Ice Storage Tank 24 air conditioner water cavitys through magnetic valve 25 gets cold, another road electric control valve 26 of flowing through, the low-temperature air conditioner water that flows out with the outlet of enclosed Ice Storage Tank 24 air conditioner waters converges after water knockout drum 19 flows to air conditioning terminal 15, finishes cold machine and the circulation of ice groove associating cooling.B. the hot operational mode of cold mechanism in winter.
(e) when system operates in cold machine-processed heat pattern, identical with the cold machine-processed heat pattern that above-mentioned embodiment " is directly evaporated closed-type external ice thawing heat pump air conditioner in parallel ".
Need to prove that in addition realize that core component of the present invention is an enclosed Ice Storage Tank 24, this technology is a prior art.This enclosed Ice Storage Tank comprises housing, melt ice on coil, cold-producing medium separating tube and cold-producing medium collector tube, the two ends of its housing are connected with the end socket sealing respectively, melt ice on coil forms multitube journey coolant channel by bend pipe and straight tube, be fixed in the housing by the set tube sheet that has through hole and can form water stream channel in two ends in the housing, melt ice on coil outer surface and shell inner surface space form the air conditioner water passage, melt ice on coil set inlet is connected with the refrigerating medium separating tube, melt ice on coil set outlet is connected with cold-producing medium return-air collector, the cold-producing medium collector tube, cold-producing medium return-air collector respectively be located at end socket on refrigerant inlet be connected the inlet of air conditioner water passage with refrigerant outlet, the outlet of air conditioner water passage respectively be located at end socket on the air-conditioning oral siphon be connected with the air-conditioning outlet pipe.This technology is exactly existing open type Ice Storage Tank to be improved by above-mentioned structure annexation become the enclosed Ice Storage Tank.Seldom give unnecessary details in this.
Claims (4)
1. one kind directly evaporates the closed-type external ice thawing heat pump air conditioner, and it is by compressor (2), cross valve (28), air cooling heat exchanger and/or water cooling heat exchanger (3), air cooling heat exchanger fan (4), high pressure receiver (5), device for drying and filtering (6), liquid three-way solenoid valve (7), gas three-way solenoid valve (27), ice-reserving heating power expansion valve (10), cooling heating power expansion valve (8), heat with heating power expansion valve (21), cooling check valve (22), heat with check valve (23), refrigerant/water heat exchanger (9), gas-liquid separator (12), enclosed Ice Storage Tank (24), the outdoor unit (1) that magnetic valve (25) and electric control valve (26) constitute and by air conditioning terminal (15), water collector (16), water knockout drum (19), the air conditioner water loop that air conditioner water level pressure parts (20) constitute is formed; It is characterized in that: gas-liquid separator (12) outlet links to each other with compressor (2) air inlet, compressor (2) blast pipe links to each other with cross valve (28) air inlet, the return-air mouth of cross valve (28) links to each other with the air inlet of gas-liquid separator (12), two other interface of cross valve (28) links to each other with the inlet of air cooling heat exchanger and/or water cooling heat exchanger (3) and the outlet of gas three-way solenoid valve (27) respectively, the outlet of air cooling heat exchanger and/or water cooling heat exchanger (3) with by cooling check valve (22), heat with check valve (23) and cooling heating power expansion valve (8), heat the check valve/expansion valve component inlet that constitutes with heating power expansion valve (21) and link to each other, other three outlets of check valve/expansion valve component are respectively with refrigerant/water heat exchanger (9) coolant channel inlet with by high pressure receiver (5), device for drying and filtering (6), going out of high pressure receiver/device for drying and filtering/three-way solenoid valve assembly that liquid three-way solenoid valve (7) constitutes, inlet links to each other; Another outlet of liquid three-way solenoid valve (7) links to each other with enclosed Ice Storage Tank (24) refrigerant inlet with heating power expansion valve (10) by ice-reserving, and enclosed Ice Storage Tank (24) refrigerant outlet and the outlet of refrigerant/water heat exchanger (9) coolant channel are connected respectively to two inlets of gas three-way solenoid valve (27); Air conditioner water returns water collector (16) from air conditioning terminal (15), air conditioner water after air-conditioning water pump (17) pressurization enters the air conditioner water access road of enclosed Ice Storage Tank (24) and the discharge that is entered the mouth or exported by electric control valve (26) control refrigerant/water heat exchanger (9) air conditioner water by magnetic valve (25), together enter water knockout drum (19) after the two-way air conditioner water that is exported by enclosed Ice Storage Tank (24) air conditioner water outlet and refrigerant/water heat exchanger (9) air conditioner water converges, air conditioner water is injected air conditioning terminal (15) by water knockout drum (19).
2. according to the described direct evaporation closed-type external ice thawing heat pump air conditioner of claim 1, it is characterized in that: the inlet of described magnetic valve (25), electric control valve (26) and the outlet of air-conditioning water pump (17) are joined, and the outlet of electric control valve (26) and refrigerant/water heat exchanger (9) air conditioner water inlet join.
3. according to the described direct evaporation closed-type external ice thawing heat pump air conditioner of claim 1, it is characterized in that: the inlet of described magnetic valve (25), electric control valve (26) and the outlet of refrigerant/water heat exchanger (9) air conditioner water are joined.
4. according to claim 1,2 or 3 described direct evaporation closed-type external ice thawing heat pump air conditioners, it is characterized in that: described enclosed Ice Storage Tank (24) comprises housing, melt ice on coil, cold-producing medium separating tube and cold-producing medium collector tube, the two ends of housing are connected with the end socket sealing respectively, melt ice on coil forms multitube journey coolant channel by bend pipe and straight tube, be fixed in the housing by the set tube sheet in two ends in the housing with through hole, melt ice on coil outer surface and shell inner surface space form the air conditioner water passage, radially be provided with a plurality of water deflection plates that are staggeredly placed in the air conditioner water passage, melt ice on coil set inlet is connected with the cold-producing medium separating tube, the cold-producing medium separating tube joins with the refrigerant inlet that is located on the end socket, melt ice on coil set outlet is connected with cold-producing medium return-air collector, cold-producing medium return-air collector joins the inlet of air conditioner water passage with the refrigerant outlet that is located on the end socket, the outlet of air conditioner water passage respectively be located at end socket on the air conditioner water oral siphon be connected with the air conditioner water outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021234361A CN1199027C (en) | 2002-06-28 | 2002-06-28 | Direct evaporation close type external ice-melting heat-pump air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021234361A CN1199027C (en) | 2002-06-28 | 2002-06-28 | Direct evaporation close type external ice-melting heat-pump air-conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1465941A true CN1465941A (en) | 2004-01-07 |
| CN1199027C CN1199027C (en) | 2005-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021234361A Expired - Fee Related CN1199027C (en) | 2002-06-28 | 2002-06-28 | Direct evaporation close type external ice-melting heat-pump air-conditioner |
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| CN (1) | CN1199027C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487613B (en) * | 2009-02-12 | 2011-11-02 | 戴思嘉 | Ice-chilling air conditioning system |
| CN102506473A (en) * | 2011-10-18 | 2012-06-20 | 江苏七彩科技有限公司 | Direct-evaporating type ice cold accumulation refrigerating system and refrigerating method thereof |
| WO2013007031A1 (en) * | 2011-07-14 | 2013-01-17 | Feng Zhengyi | Hot and cold water composite air-conditioner |
| CN105716309A (en) * | 2016-04-21 | 2016-06-29 | 周寒寒 | Multifunctional vapor compression cycle refrigeration and air conditioning system utilizing phase-change refrigeration principle |
| CN107024127A (en) * | 2017-04-21 | 2017-08-08 | 清华大学 | A kind of power drive two-phase loop active control formula accumulation of energy is released can System and method for |
| CN112880245A (en) * | 2021-01-27 | 2021-06-01 | 苏州必信空调有限公司 | Air conditioning device with cold accumulation function |
-
2002
- 2002-06-28 CN CNB021234361A patent/CN1199027C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487613B (en) * | 2009-02-12 | 2011-11-02 | 戴思嘉 | Ice-chilling air conditioning system |
| WO2013007031A1 (en) * | 2011-07-14 | 2013-01-17 | Feng Zhengyi | Hot and cold water composite air-conditioner |
| CN102506473A (en) * | 2011-10-18 | 2012-06-20 | 江苏七彩科技有限公司 | Direct-evaporating type ice cold accumulation refrigerating system and refrigerating method thereof |
| CN102506473B (en) * | 2011-10-18 | 2014-06-11 | 江苏七彩科技有限公司 | Direct-evaporating type ice cold accumulation refrigerating system and refrigerating method thereof |
| CN105716309A (en) * | 2016-04-21 | 2016-06-29 | 周寒寒 | Multifunctional vapor compression cycle refrigeration and air conditioning system utilizing phase-change refrigeration principle |
| CN107024127A (en) * | 2017-04-21 | 2017-08-08 | 清华大学 | A kind of power drive two-phase loop active control formula accumulation of energy is released can System and method for |
| CN107024127B (en) * | 2017-04-21 | 2019-09-20 | 清华大学 | A kind of power drive two-phase loop active control formula accumulation of energy is released can System and method for |
| CN112880245A (en) * | 2021-01-27 | 2021-06-01 | 苏州必信空调有限公司 | Air conditioning device with cold accumulation function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1199027C (en) | 2005-04-27 |
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