CN100592018C - Hot water heat converter and central air conditioner using the same - Google Patents

Hot water heat converter and central air conditioner using the same Download PDF

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Publication number
CN100592018C
CN100592018C CN200710160455A CN200710160455A CN100592018C CN 100592018 C CN100592018 C CN 100592018C CN 200710160455 A CN200710160455 A CN 200710160455A CN 200710160455 A CN200710160455 A CN 200710160455A CN 100592018 C CN100592018 C CN 100592018C
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China
Prior art keywords
heat exchanger
hot water
cold
pipe
water
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CN101196379A (en
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胡定准
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ZHEJIANG TAIZHOU SHUANGBO ENERGY TECHNOLOGY Co Ltd
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ZHEJIANG TAIZHOU SHUANGBO ENERGY TECHNOLOGY Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12Hot water central heating systems using heat pumps
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/54Free-cooling systems

Abstract

The invention relates to a hot-water heat exchanger and a central air-conditioner using the hot-water heat exchanger. The hot-water heat exchanger consists of a shell, a refrigerant line provided in the shell, a cold water inlet pipe and a hot water outlet pipe; the shell is internally provided with a gas gathering drum with nozzle turning downwards and the refrigerant line surrounds out of the gas gathering drum. The central air-conditioner using the hot-water heat exchanger forms A machine circulating system and B machine circulating system by a compressor, a reversing valve, a surface air cooler, a heat exchanger and an electronic expansion valve. The A machine circulating system and B machine circulating system separately form loops through A and B refrigerant lines of a hot water electromagnetic valve and the hot-water heat exchanger. A plurality of fan-coil units and ground heating coils provided with electromagnetic valves are communicated with water pipes of the heat exchangerthrough circulating water pumps. The invention integrates ground heating, air-conditioning and producing hot water with high energy utilization rate and improves heat changing efficiency. Through twostage compression, the matching is ensured easy and the range of territory of use is wide. In addition, the inner liner of the hot-water heat exchanger is not easily broken when the water temperaturerises to ensure service life.

Description

Hot water heat exchanger and the central air-conditioning that uses the hot water heat exchanger
Technical field
The central air-conditioning that the present invention relates to a kind of hot water heat exchanger and use the hot water heat exchanger.
Background technology
The hot water heat exchanger raises water temperature by the heat that the high-temperature high-pressure refrigerant steam that absorption is discharged by compressor is discharged, and uses for the user.Chinese patent literature 200520113856.6 discloses a kind of " air conditioning hot interchanger ", comprise compressor, condenser, evaporimeter, capillary, drier and magnetic valve, one way stop peturn valve, refrigerant pipe, also comprise cross valve, hot water exchanger, temperature sensor and heat storage water tank.By single refrigeration, cooling and warming, heat four parts separately and constitute.Hot water exchanger is made of heat exchanger tube and stainless steel water storage cylindrical shell.Heat exchanger tube is loaded in the stainless steel water storage cylindrical shell, and the refrigerant inlet is positioned at the top of heat exchanger tube, and refrigerant exit is positioned at the bottom of heat exchanger tube.Stainless steel water storage cylindrical shell bottom is provided with cold water inlet, and the top is provided with hot water outlet.Though the hot water heat exchanger of this structure has utilized compressor of air conditioner to produce hot water, cost is low, and the utilization rate height because water temperature raises, causes the water heater internal pressure to increase when producing hot water, easily causes the water heater liner cracking.Another, the arrangement of existing hot water heat exchanger's heat exchanger tube is more single, generally all adopts spiral surrounding setting from top to bottom successively simply, does not make full use of heat exchange efficiency, and the heat exchange effect is undesirable, wastes energy.
Chinese patent literature 200420018945.8 discloses a kind of " cascade type heat pump residential central air-", cool-heat-exchanger is an energy heat accumulation condenser/evaporator inner-heating tube, cool-heat-exchanger one end is connected with secondary frequency-changeable compressor medium input with b by the c of four-way change-over valve, secondary frequency-changeable compressor output is connected with d with four-way change-over valve a, this pipeline connects plate type heat exchanger, on the heat exchanger tube connecting line of plate type heat exchanger and condenser/evaporator heating power expansion valve is installed, plate type heat exchanger links to each other with indoor fan coil by water circulating pump.Though the central air-conditioning of this structure has been realized and can have been freezed at summer air-conditioning, can warm oneself and provide life hot water again in the winter time, but because its refrigerant circulation loop has only one, in order to realize the secondary compression, cause structure and manufacturing process complexity, cost is higher, and is difficult for coupling, and the area that is fit to use is restricted.
Summary of the invention
Inner bag technical problem easy to crack when the present invention mainly solves original hot water heat exchanger's water temperature and raises; The hot water heat exchanger that inner bag is not easy to crack is provided when providing a kind of water temperature to raise.
It is single that the present invention solves original hot water heat exchanger's heat exchanger tube arrangement simultaneously, and heat exchange efficiency is not high, the technical problem of energy waste; A kind of structure that is provided with of improving heat exchanger tube is provided, makes full use of the energy, improve the hot water heat exchanger of heat exchange efficiency.
The present invention solves traditional central air-conditioning again and adopts a refrigerant circulation loop, causes complex structure, is difficult for coupling, the technical problem that the area that is fit to use is restricted; Provide a kind of and guarantee coupling easily by using the hot water heat exchanger who improves structure to connect two refrigerant circulation loops, territory of use's scope is wide, need not storage tank, and instant domestic hot-water's use hot water heat exchanger's central air-conditioning can be provided.
The present invention also solves the system that produces hot water by traditional central air-conditioning can't provide the domestic hot-water under the cold district low temperature environment technical problem; A kind of central air-conditioning that domestic hot-water's use hot water heat exchanger is provided by the preheating of central air conditioner system under the cold district low temperature environment is provided.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: hot water heat exchanger of the present invention comprises housing, is located at refrigerant pipe, cold water inlet pipe, hot water out pipe in the housing, be provided with gas collecting jar with ground-on cover plate in the described housing, the nozzle of gas collecting jar with ground-on cover plate down, described refrigerant pipe is looped around outside the described gas collecting jar with ground-on cover plate.The gas of gas collecting jar with ground-on cover plate internal memory contain certain pressure, when irritating cold water by the cold water inlet pipe in hot water heat exchanger's housing, there is the water seal phenomenon in the gas collection nozzle, and the inside and outside air pressure of gas collecting jar with ground-on cover plate is equated.After the water in the housing is by the refrigerant pipe heating, water temperature raises, pressure increases, hot water is pressed in the gas collecting jar with ground-on cover plate, gas in the gas collecting jar with ground-on cover plate is compressed, the volume of the water that expands among the hot water heat exchanger has been eliminated by the compression of the gas in the gas collecting jar with ground-on cover plate, guarantees that the pressure of hot water in the housing does not continue to increase, thereby the housing of guaranteeing the hot water heat exchanger can not ftracture because of water temperature raises.
As preferably, described refrigerant pipe is single loop multiple-limb refrigerant pipe or multiloop list branched-refrigerant pipe or multiloop multiple-limb refrigerant pipe, refrigerant pipe from top to bottom with " people " font crossed loops around described gas collecting jar with ground-on cover plate.Make the cold-producing medium in the refrigerant pipe, a part flows in a clockwise direction, and another part to be counterclockwise flowing, and the direction of current in the housing is repeatedly changed, and has increased the turbulent flow of water circulation greatly, increases heat exchange efficiency, and the energy is fully used.
As preferably, described crossed loops outside gas collecting jar with ground-on cover plate refrigerant pipe and the angle of horizontal direction be 4 °~8 °.
As preferably, described gas collecting jar with ground-on cover plate top is provided with several cold-producing medium liquid-dividing heads, each cold-producing medium liquid-dividing head links to each other with the cold-producing medium tracheae in this loop that penetrates described housing respectively, each cold-producing medium liquid-dividing head links to each other with the multiple-limb refrigerant pipe in this loop respectively again, described gas collecting jar with ground-on cover plate below is provided with the cold-producing medium collector tube of the multiple-limb refrigerant pipe that is communicated with this loop respectively of ring-type, the refrigerant liquid pipe that penetrates housing is communicated with the cold-producing medium collector tube in this loop respectively, and the tie point of the cold-producing medium collector tube in described multiple-limb refrigerant pipe and this loop is distributed on the cold-producing medium collector tube of ring-type.Cold-producing medium flows into from the cold-producing medium tracheae, is dispersed into several again and flows into the branched-refrigerant pipe, and the collector tube in the lower end compiles again, flows out through the refrigerant liquid pipe.According to different needs, constitute single loop multiple-limb refrigerant pipe or multiloop multiple-limb refrigerant pipe.Further increase the contact-making surface of cold-producing medium and water, guarantee that heat exchange is more even, improve heat exchange efficiency.Refrigerant pipe can adopt the less copper pipe of internal diameter, compares the volume-diminished of equal exchange area with big caliber.
As preferably, described cold-producing medium tracheae and refrigerant liquid pipe penetrate in the housing from the bottom of described housing, and the cold-producing medium tracheae passes described gas collecting jar with ground-on cover plate; Described cold water inlet pipe penetrates in the described gas collecting jar with ground-on cover plate from the bottom of described housing, and the part that the cold water inlet pipe is positioned at gas collecting jar with ground-on cover plate is inverted U and is arranged at the gas collecting jar with ground-on cover plate bottom; Described hot water out pipe penetrates and passes described gas collecting jar with ground-on cover plate from the bottom of described housing, and the mouth of pipe that hot water out pipe is positioned at housing is arranged at the top at the top of gas collecting jar with ground-on cover plate.The water seal effect of gas collecting jar with ground-on cover plate is guaranteed in the setting of cold water inlet pipe.The setting of hot water out pipe according to the principle of upper heat and lower cold, guarantees that the cold water temperature that pours into the hot water heat exchanger does not influence the hot water temperature who emits.
As preferably, described housing comprises shell and inner bag, accompanies heat-insulation layer between shell and the inner bag, and described shell is made by metallic sheet stock, and described inner bag is made by stainless steel material, and described heat-insulation layer is made by polyurethane foam.Guarantee to reduce thermal loss.
The above-mentioned hot water heat exchanger's of use of the present invention central air-conditioning, the refrigerant-cycle systems that constitutes by compressor, reversal valve, surface cooler, heat exchanger, electric expansion valve, be provided with the cross current of the several fan coil of magnetic valve by water circulating pump and heat exchanger, master controller is electrically connected with compressor, reversal valve, electric expansion valve, room temperature control manual operator; Described refrigerant-cycle systems comprises the A machine circulatory system, the B machine circulatory system, the A machine circulatory system constitutes the loop by first hot water electromagnetic valve and hot water heat exchanger's A refrigerant pipe, the B machine circulatory system constitutes the loop by second hot water electromagnetic valve and hot water heat exchanger's B refrigerant pipe, and first, second hot water electromagnetic valve is electrically connected with described master controller.Under the refrigerating state, the A among the hot water heat exchanger, B refrigerant pipe respectively with A machine, the B machine circulatory system in heat exchanger constitute the loop, the heat that heat exchanger absorbs is discharged among the hot water heat exchanger by A, B refrigerant pipe, the heating water temperature; Heat under the state and the main frame holding state under, the A among the hot water heat exchanger, B refrigerant pipe respectively with A machine, the B machine circulatory system in surface cooler constitute the loop, the heat that surface cooler absorbs is discharged among the hot water heat exchanger by A, B refrigerant pipe, the heating water temperature.Above-mentioned heating process is the limit and advances the instant mode of heating that the cold water limit goes out hot water, and water consumption is not subjected to the restriction of hot water heat exchanger's volume, connects A, B refrigerant circulation loop by the hot water heat exchanger, guarantees coupling easily, and territory of use's scope is wide.
As preferably, described hot water heat exchanger's hot water out pipe is communicated with storage tank by the domestic water circulating pump, described storage tank top is provided with the domestic water outlet pipe, be provided with the temperature sensor that is electrically connected with master controller in the storage tank, described hot water out pipe is provided with flow switch, and described cold water inlet pipe is provided with the cold water magnetic valve.The compression ratio of compressor in the market (high-pressure/low pressure) can not be greater than 9 safe ratio.After the environment temperature of cold district is lower than-7 degree, if require water temperature to be heated to 40~45 degree, compression ratio will reach capacity, and cause the safe operation coefficient of compressor own to reduce, and efficient is also low.On the other hand, the compressor peak power that can be suitable for the 220V AC power on the market is 3P, the heat that produces when two compressors move at the two poles of the earth can not be immediately directly directly be heated to 40~45 degree with the running water of cold district, so must increase storage tank.Under this duty, the A machine circulatory system is discharged into the heat energy that draws in the air in the heat exchanger of A machine, pass through water circulating pump, utilize the fan coil water system of room conditioning to exchange as the centre, the B machine circulatory system is drawn heat energy also by the heat radiation of the B refrigerant pipe among hot water heat exchanger rising warm water from the heat exchanger of B machine, finish two stages of compression, the hot water among the hot water heat exchanger is discharged in the storage tank, the water in the preheating storage tank.
As preferably, described water circulating pump also is communicated with several floor heating coil system, described floor heating coil system comprises the floor heating coil pipe that is provided with the floor heating magnetic valve, the floor heating coil pipe is by the cross current of described water circulating pump and heat exchanger, the floor heating magnetic valve is electrically connected with ground water-heating valve controller, and ground water-heating valve controller is electrically connected with master controller.By water circulating pump, the heat energy that the heat exchanger in A, the B machine circulatory system is discharged flows to the floor heating coil pipe, realizes that floor heating heats.Thereby realization integrates floor heating, produces the central air-conditioning of hot water.
As preferably, the compressor of the described A machine circulatory system, reversal valve, electric expansion valve are electrically connected with the A controller, and B machine circulatory system compressor, reversal valve, electric expansion valve are electrically connected with the B controller, and A, B controller are electrically connected with master controller again.
The invention has the beneficial effects as follows: by gas collecting jar with ground-on cover plate is set in the hot water heat exchanger, has solved the pressure-bearing type confined space and caused pressure to increase because water temperature raises, thus the problem that the inner bag weld bond is ftractureed.By with single loop multiple-limb refrigerant pipe or multiloop list branched-refrigerant pipe or multiloop multiple-limb refrigerant pipe from top to bottom around gas collecting jar with ground-on cover plate and with the cross arrangement of " people " font, part of refrigerant is flowed in the direction of the clock, another part cold-producing medium is by counterclockwise flowing, the direction of current in the hot water heat exchanger is repeatedly changed, increased the turbulent flow of water circulation greatly, increase heat exchange efficiency, the energy is fully used.By the hot water heat exchanger A machine circulatory system and the B machine circulatory system are bound up, finish two stages of compression, guarantee coupling easily, territory of use's scope is wide.Realize that general area can directly be heated to the cold water that pours into the hot water heat exchanger the needed temperature of taking a shower, and provides instant hot water by the hot water heat exchanger; Cold district stores storage tank supply preheating hot water into by hot water heat exchanger's preheating system water.And reclaim used heat when having realized refrigeration, do not shut down during heating and defrosting, do not consume indoor heat energy.Integrate floor heating simultaneously, produce hot water, air-conditioning, the energy utilization rate height, heating effect is obvious.
Description of drawings
Fig. 1 is a hot water heat exchanger's of the present invention a kind of axial sectional structure schematic diagram.
Fig. 2 is a kind of plan structure schematic diagram of the refrigerant pipe of arrangement in the hot water heat exchanger of the present invention.
Fig. 3 is the partial schematic diagram of a kind of main TV structure of the refrigerant pipe of arrangement in the hot water heat exchanger of the present invention.
Fig. 4 is a kind of plan structure schematic diagram of hot water heat exchanger's inner refrigerant collector tube of the present invention.
Fig. 5 is a kind of system connection diagram of use hot water heat exchanger's of the present invention central air-conditioning.
Fig. 6 is a kind of annexation schematic diagram of use of the present invention hot water heat exchanger's central air-conditioning hot water heat exchanger and storage tank when being applied in cold district.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: the use hot water heat exchanger's of present embodiment central air-conditioning comprises electric control system, refrigerant-cycle systems, fan coil water circulation system, floor heating coil pipe water circulation system, the domestic water circulatory system.As shown in Figure 5, refrigerant-cycle systems comprises the A machine circulatory system 100, the B machine circulatory system 200.The A machine circulatory system comprises compressor 1, reversal valve 2,3, surface cooler 5, heat exchanger 4, electric expansion valve 6,7, connects hot water heat exchanger 20 A refrigerant pipe 9 again by first hot water electromagnetic valve 8, and the other end of A refrigerant pipe 9 connects reversal valve 3.The B machine circulatory system comprises compressor 1 ', reversal valve 2 ', 3 ', surface cooler 5 ', heat exchanger 4 ', electric expansion valve 6 ', 7 ', connect hot water heat exchanger 20 B refrigerant pipe 9 ' again by second hot water electromagnetic valve 8 ', the other end of B refrigerant pipe 9 ' connects reversal valve 3 '.Be provided with the fan coil 10 of magnetic valve 12, the floor heating coil pipe 11 that is provided with floor heating magnetic valve 14 and heat exchanger 4,4 ' water pipe is communicated with by water circulating pump 13, constitutes fan coil water circulation system, floor heating coil pipe water circulation system.
The hot water heat exchanger of present embodiment, as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, hot water heat exchanger 20 comprises housing, A refrigerant pipe 9, B refrigerant pipe 9 ', cold water inlet pipe 21, hot water out pipe 22, housing is made of shell 201, heat-insulation layer 202, inner bag 203, heat-insulation layer is clipped between shell and the inner bag, one gas collecting jar with ground-on cover plate 23 is arranged in the housing, and the nozzle of gas collecting jar with ground-on cover plate 23 down.A, B cold-producing medium tracheae 24,24 ' and A, B refrigerant liquid pipe 27,27 ' the bottom from housing penetrates in the housing, and A, B cold-producing medium tracheae 24,24 ' passes gas collecting jar with ground-on cover plate 23, with the A that is positioned at gas collecting jar with ground-on cover plate 23 tops, B cold-producing medium liquid-dividing head 25,25 ' links to each other, A, B cold-producing medium liquid-dividing head 25,25 ' again respectively with four A refrigerant pipes 9, four B refrigerant pipes 9 ' link to each other, A, B refrigerant pipe 9,9 ' symmetrically from top to bottom around gas collecting jar with ground-on cover plate 23, and A refrigerant pipe 9 and B refrigerant pipe 9 ' are with the cross arrangement of " people " font, A, B refrigerant pipe 9,9 ' with the angle of horizontal direction be 6 °, A, B refrigerant pipe 9,9 ' more respectively with the A in the form of a ring that is positioned at gas collecting jar with ground-on cover plate 23 belows, B cold-producing medium collector tube 26,26 ' links to each other, four A refrigerant pipes 9 are distributed on the A cold-producing medium collector tube 26 of ring-type with the tie point of A cold-producing medium collector tube 26, four B refrigerant pipes 9 ' are distributed on the B cold-producing medium collector tube 26 ' of ring-type with the tie point of B cold-producing medium collector tube 26 ', at last, A, B cold-producing medium collector tube 26,26 ' each and A, B refrigerant liquid pipe 27,27 ' is communicated with.Cold water inlet pipe 21 penetrates in the gas collecting jar with ground-on cover plate 23 from the bottom of housing, and the part that cold water inlet pipe 21 is positioned at gas collecting jar with ground-on cover plate 23 is inverted U and is arranged at gas collecting jar with ground-on cover plate 23 bottoms; Hot water out pipe 22 penetrates and passes gas collecting jar with ground-on cover plate 23 from the bottom of housing, and the mouth of pipe that hot water out pipe 22 is positioned at housing is arranged at the top at the top of gas collecting jar with ground-on cover plate 23.Hot water out pipe 22 is provided with flow switch 33, and cold water inlet pipe 21 is provided with cold water magnetic valve 15.Constitute the domestic water circulatory system.
As shown in Figure 5, the compressor 1 of the A machine circulatory system 100, reversal valve 2,3, electric expansion valve 6,7, first hot water electromagnetic valve 8 are electrically connected with A controller 35, the compressor 1 ' of the B machine circulatory system 200, reversal valve 2 ', 3 ', electric expansion valve 6 ', 7 ', second hot water electromagnetic valve 8 ' are electrically connected with B controller 36, and A, B controller are electrically connected with master controller 30 again.Master controller 30 also with magnetic valve 12, floor heating magnetic valve 14, cold water magnetic valve 15, room temperature control manual operator 31, water-heating valve controller 32, water circulating pump 13 be electrically connected.Constitute electric control system.
Use the course of work of hot water heat exchanger's central air-conditioning:
Refrigeration: temperature control manual operator in room is set the refrigeration work state, the compressor of the A machine circulatory system, reversal valve, surface cooler, heat exchanger constitute refrigerating circuit, the compressor of the B machine circulatory system, reversal valve, surface cooler, heat exchanger constitute refrigerating circuit, the heat that heat exchanger absorbs is discharged by surface cooler, water temperature in the water pipe reduces, water circulating pump is opened, and blows out cold air by fan coil.
Heat: temperature control manual operator in room is set and is heated duty, the compressor of the A machine circulatory system, reversal valve, heat exchanger, surface cooler formation heat the loop, the compressor of the B machine circulatory system, reversal valve, surface cooler, heat exchanger constitute refrigerating circuit, the heat that surface cooler absorbs is discharged by heat exchanger, water temperature in the water pipe raises, water circulating pump is opened, and blows out hot blast by fan coil.
Floor heating: temperature control manual operator in room is set the floor heating duty, and transmits unlatching floor heating room number by master controller to ground water-heating valve controller, opens corresponding floor heating magnetic valve, the ON cycle water pump.The compressor of the A machine circulatory system, reversal valve, heat exchanger, surface cooler formation heat the loop, the compressor of the B machine circulatory system, reversal valve, surface cooler, heat exchanger constitute refrigerating circuit, the heat that surface cooler absorbs is discharged by heat exchanger, water temperature in the water pipe raises, pass through water circulating pump, flow of hot water realizes that to the floor heating coil pipe ground, room heats.
The domestic hot-water: 1) during the standby of A machine, compressor, reversal valve, hot water heat exchanger's A refrigerant pipe, surface cooler constitute the loop, and the heat that surface cooler absorbs is discharged by the A refrigerant pipe; During the standby of B machine, compressor, reversal valve, hot water heat exchanger's B refrigerant pipe, surface cooler constitute the loop, and the heat that surface cooler absorbs is discharged by the B refrigerant pipe.Make the cold water that pours into the hot water heat exchanger intensification of being heated, discharge for life usedly from hot water out pipe, obtain instant hot water, not the restriction of receptor volume size.When 2) A mechanism was cold, compressor, reversal valve, hot water heat exchanger's A refrigerant pipe, heat exchanger constituted the loop, and the heat that heat exchanger absorbs is discharged by the A refrigerant pipe, and water temperature is raise.3) when A mechanism heat or floor heating, compressor, reversal valve, hot water heat exchanger's A refrigerant pipe, surface cooler constitute the loop, and the heat that surface cooler absorbs is discharged by the A refrigerant pipe, and water temperature is raise.
Low-temperature heating water: A mechanism heat, compressor, reversal valve, surface cooler, hot water heat exchanger's A refrigerant pipe constitutes the loop, and the heat that surface cooler absorbs is discharged by the A refrigerant pipe; B mechanism is cold, and compressor, reversal valve, heat exchanger, hot water heat exchanger's B refrigerant pipe constitutes the loop, and the heat that heat exchanger absorbs is discharged by the B refrigerant pipe.After the secondary compression, make the cold water that pours into the hot water heat exchanger intensifications of being heated, discharge for living usedly from hot water out pipe, obtain instant hot water, not the restriction of receptor volume size.
Use hot water heat exchanger's of the present invention central air-conditioning, when producing hot water, only need use single compressor summer, use double-compressor winter, be higher than-7 in environment temperature when spending, the cold water that directly will pour into hot water heat exchanger's 7~8 degree is heated to the needed temperature of taking a shower, and provides instant hot water by the hot water heat exchanger.The present invention utilizes heat pump to produce the mode of hot water, and two common compressor are constituted refrigerating circuit separately, is bound up very easily by the hot water heat exchanger, reclaims used heat when having realized refrigeration, does not shut down during heating and defrosting, does not consume indoor heat energy.Integrate air-conditioning, floor heating dexterously, produce the domestic hot-water, the energy utilization rate height, heating effect is obvious.
Hot water heat exchanger of the present invention, the gas that has certain pressure in the gas collecting jar with ground-on cover plate, when in hot water heat exchanger's housing, irritating cold water by the cold water inlet pipe, because the cold water inlet pipe mouth that is positioned at housing is near the gas collecting jar with ground-on cover plate nozzle, there is the water seal phenomenon in the gas collecting jar with ground-on cover plate nozzle, the inside and outside air pressure of gas collecting jar with ground-on cover plate is equated, can charge part cold water in the gas collecting jar with ground-on cover plate, another part cold water is full of in the space between inner bag and the gas collecting jar with ground-on cover plate, and by the cooling heat dissipation of cold-producing medium, cold water becomes hot water, water temperature raises, pressure increases, and hot water is pressed in the gas collecting jar with ground-on cover plate, and the gas in the gas collecting jar with ground-on cover plate is compressed, the volume of the water that expands among the hot water heat exchanger has been eliminated by the compression of the gas in the gas collecting jar with ground-on cover plate, the pressure that inner bag is subjected to reduces, and guarantees that inner bag can not ftracture because of water temperature raises, thereby guarantees hot water heat exchanger's service life.On the other hand, A cold-producing medium tracheae, A cold-producing medium liquid-dividing head, A refrigerant pipe, A cold-producing medium collector tube, A refrigerant liquid pipe belong to the A machine circulatory system, and B cold-producing medium tracheae, B cold-producing medium liquid-dividing head, B refrigerant pipe, B cold-producing medium collector tube, B refrigerant liquid pipe belong to the B machine circulatory system.Cold-producing medium in the A refrigerant pipe flows in a clockwise direction, cold-producing medium in the B refrigerant pipe to be counterclockwise flowing, and the direction of current in the hot water heat exchanger is repeatedly changed, and increased the turbulent flow of water circulation greatly, increase heat exchange efficiency, the energy is fully used.And A, B cold-producing medium resolve into four circulation canals by A, B cold-producing medium liquid-dividing head respectively, and the A, the B refrigerant pipe that participate in heat exchange can adopt the less copper pipe of internal diameter, compare the volume-diminished of equal exchange area with big caliber.
Embodiment 2: the use hot water heat exchanger's of present embodiment central air-conditioning is fit to cold district and uses, for cold district provides the domestic hot-water.Prepare a storage tank of depositing preheating water.As shown in Figure 6, hot water heat exchanger 20 hot water out pipe 22 is communicated with storage tank 18 through domestic water circulating pump 17, flow switch 33, storage tank 18 tops are connected with domestic water outlet pipe 19, and the temperature sensor T6 that is electrically connected with master controller 30 is installed in the storage tank 18.The hot water heating order is opened in the standby simultaneously of A machine and B machine.When T6 is lower than set water temperature, open heat-production functions, open domestic water circulating pump 17.Master controller cuts out all fan coils, the ON cycle water pump.A mechanism heat, compressor, reversal valve, surface cooler, heat exchanger constitute the loop, and surface cooler absorbs the heating of heat heat exchanger; By water circulating pump, make the also heating of heat exchanger of B machine, the compressor of B machine, reversal valve, heat exchanger, hot water heat exchanger's B refrigerant pipe constitutes the loop, and the heat that heat exchanger absorbs is discharged by the B refrigerant pipe.Below cold district-7 degree, by two stages of compression, under the prerequisite that guarantees the compressor security performance, make full use of heat energy, the preheating by the hot water heat exchanger is discharged into preheating water in the storage tank, makes behind the water preheat in the storage tank used for life again.Remaining is with embodiment 1.

Claims (8)

1. hot water heat exchanger, comprise housing, be located at refrigerant pipe, cold water inlet pipe (21), hot water out pipe (22) in the housing, it is characterized in that being provided with in the described housing gas collecting jar with ground-on cover plate (23), the nozzle of gas collecting jar with ground-on cover plate (23) down, described refrigerant pipe is looped around outside the described gas collecting jar with ground-on cover plate (23), described refrigerant pipe is single loop multiple-limb refrigerant pipe or multiloop list branched-refrigerant pipe or multiloop multiple-limb refrigerant pipe, refrigerant pipe from top to bottom with " people " font crossed loops around described gas collecting jar with ground-on cover plate (23).
2. hot water heat exchanger according to claim 1, it is characterized in that described crossed loops outside gas collecting jar with ground-on cover plate (23) refrigerant pipe and the angle of horizontal direction be 4 °~8 °.
3. hot water heat exchanger according to claim 1 and 2, it is characterized in that described gas collecting jar with ground-on cover plate (23) top is provided with several cold-producing medium liquid-dividing heads, each cold-producing medium liquid-dividing head links to each other with the cold-producing medium tracheae in this loop that penetrates described housing respectively, each cold-producing medium liquid-dividing head links to each other with the multiple-limb refrigerant pipe in this loop respectively again, described gas collecting jar with ground-on cover plate (23) below is provided with the cold-producing medium collector tube of the multiple-limb refrigerant pipe that is communicated with this loop respectively of ring-type, the refrigerant liquid pipe that penetrates housing is communicated with the cold-producing medium collector tube in this loop respectively, and the tie point of the cold-producing medium collector tube in described multiple-limb refrigerant pipe and this loop is distributed on the cold-producing medium collector tube of ring-type.
4. hot water heat exchanger according to claim 3 it is characterized in that described cold-producing medium tracheae and refrigerant liquid pipe penetrate in the housing from the bottom of described housing, and the cold-producing medium tracheae passes described gas collecting jar with ground-on cover plate (23); Described cold water inlet pipe (21) penetrates in the described gas collecting jar with ground-on cover plate (23) from the bottom of described housing, and the part that cold water inlet pipe (21) is positioned at gas collecting jar with ground-on cover plate (23) is inverted U and is arranged at gas collecting jar with ground-on cover plate (23) bottom; Described hot water out pipe (22) penetrates and passes described gas collecting jar with ground-on cover plate (23) from the bottom of described housing, and the mouth of pipe that hot water out pipe (22) is positioned at housing is arranged at the top at the top of gas collecting jar with ground-on cover plate (23).
5. hot water heat exchanger according to claim 1 and 2, it is characterized in that described housing comprises shell (201) and inner bag (203), accompany heat-insulation layer (202) between shell (201) and the inner bag (203), described shell (201) is made by metallic sheet stock, described inner bag (203) is made by stainless steel material, and described heat-insulation layer (202) is made by polyurethane foam.
6. central air-conditioning that uses hot water heat exchanger as claimed in claim 1, comprise by compressor, reversal valve, surface cooler, heat exchanger, the refrigerant-cycle systems that electric expansion valve constitutes, the several fan coil (10) that is provided with magnetic valve (12) is by the cross current of water circulating pump (13) with heat exchanger, master controller (30) and compressor, reversal valve, electric expansion valve, magnetic valve, room temperature control manual operator (31) is electrically connected, it is characterized in that described refrigerant-cycle systems comprises the A machine circulatory system (100), the B machine circulatory system (200), the A machine circulatory system (100) is by A refrigerant pipe (9) the formation loop of first hot water electromagnetic valve (8) with hot water heat exchanger (20), the B machine circulatory system (200) is by B refrigerant pipe (9 ') the formation loop of second hot water electromagnetic valve's (8 ') with hot water heat exchanger (20), first, second hot water electromagnetic valve (8,8 ') be electrically connected with described master controller (30); Described water circulating pump (13) also is communicated with several floor heating coil system, described floor heating coil system comprises the floor heating coil pipe (11) that is provided with floor heating magnetic valve (14), floor heating coil pipe (11) is by the cross current of described water circulating pump (13) with heat exchanger, floor heating magnetic valve (14) is electrically connected with ground water-heating valve controller (32), and ground water-heating valve controller (32) is electrically connected with master controller (30).
7. use hot water heat exchanger's according to claim 6 central air-conditioning, the hot water out pipe (22) that it is characterized in that described hot water heat exchanger (20) is communicated with storage tank (18) by domestic water circulating pump (17), described storage tank (18) top is connected with domestic water outlet pipe (19), be provided with the temperature sensor T6 that is electrically connected with master controller (30) in the storage tank (18), described hot water out pipe (22) is provided with flow switch (33), and described cold water inlet pipe (21) is provided with cold water magnetic valve (15).
8. according to claim 6 or the 7 described central air-conditioning that use hot water heat exchangers, the compressor (1), reversal valve (2,3), the electric expansion valve (6,7) that it is characterized in that the described A machine circulatory system (100) are electrically connected with A controller (35), the compressor (1 ') of the B machine circulatory system (200), reversal valve (2 ', 3 '), electric expansion valve (6 ', 7 ') are electrically connected with B controller (36), and A, B controller are electrically connected with master controller (30) again.
CN200710160455A 2007-12-19 2007-12-19 Hot water heat converter and central air conditioner using the same Expired - Fee Related CN100592018C (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101900453A (en) * 2009-05-27 2010-12-01 王春刚 Heat pump air-conditioning ground heating system
CN102620358A (en) * 2012-03-23 2012-08-01 刘雄 Air treatment equipment water system
CN112629009B (en) * 2021-01-27 2022-03-15 山东爱客多热能科技有限公司 Gas water heater system

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CN1563821A (en) * 2004-03-26 2005-01-12 陈新祥 Air conditioner and water heater integrated machine having double compressor
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CN1641294A (en) * 2004-01-13 2005-07-20 三星电子株式会社 Heating and cooling system
CN1888637A (en) * 2006-07-14 2007-01-03 上海新豪申空调设备有限公司 Hot pump type air conditioner set with water heater
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CN2030308U (en) * 1988-04-15 1989-01-04 黄曾新 High-efficacy heating converter
CN1585884A (en) * 2001-11-09 2005-02-23 奥尔堡工业公司 A heat exchanger, combination with heat exchanger and method of manufacturing the heat exchanger
CN2537926Y (en) * 2002-04-13 2003-02-26 关铨铭 Improved automatic water heater
CN1641294A (en) * 2004-01-13 2005-07-20 三星电子株式会社 Heating and cooling system
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