CN108800650A - Heat accumulation type household central air conditioner heating hot water three-way set - Google Patents

Abstract

The present invention discloses heat accumulation type household central air conditioner heating hot water three-way set, including refrigerant and heating/air conditioner water cycle and control system, is characterized in further including that domestic hot-water exchanges heat thermal storage device, it is by prime water- to-water heat exchanger, boiler, domestic hot-water's set of heat exchange tubes at；The circuit that refrigerant-cycle systems are sequentially linked to be by compressor, prime water- to-water heat exchanger, four-way valve, water- to-water heat exchanger, throttle valve, outdoor wind heat exchanger, four-way valve, gas-liquid separator, compressor；The circuit that heating/air conditioner water circulating system is sequentially linked to be by water circulating pump, the water passage of water- to-water heat exchanger, coiler fan, dual-purpose water tank；Spring and autumn day heat pump domestic hot-water circuit is：Water circulating pump, the water passage of water- to-water heat exchanger, boiler, dual-purpose water tank, the circuit being sequentially linked to be；Boiler heat accumulation and domestic hot-water supply；The heat exchange amount of prime water- to-water heat exchanger is less than the 1/5 of water- to-water heat exchanger；Three-way set of the present invention has heating, air-conditioning, four seasons domestic hot-water supply function；Structure and control are all extremely simple, energy-efficient.

Description

Heat accumulation type household central air conditioner heating hot water three-way set

Technical field

The present invention relates to refrigeration air conditioner, Teat pump boiler and field of energy-saving technology.

Background technology

Existing household cold-warm air conditioner device divides two types, and one is only with refrigeration working medium cycle that the heat of room air is defeated Go out to outdoor fluorine circulation cold air air-conditioning, or the heat of outdoor air is input to indoor fluorine circulating air and is heated, this shape The equipment of formula is commonly referred to as cooling and heating air conditioner.Cooling and heating air conditioner only uses in two season of winter in summer, and spring, autumn are generally idle, cause to set Existing air conditioner, is transform as cold-heat air-conditioning, water-heating three-purpose machine, in the work(for ensureing air-conditioning by standby and fund seasonal waste Under the premise of energy, domestic, electric water heater is substituted, can economize on electricity 70%, energy-saving effect is apparent.To realize this target, have at present very Mostly relevant patented technology, these technologies will be improved the circulation loop of refrigeration working medium.Such as：A kind of economic benefits and social benefits Ember Days It can the cold-heat air-conditioning, water-heating three-purpose machine (patent No.：00264455.x）, a kind of four seasons energy saving cold-heat air-conditioning, water-heating three-purpose machine (patent Number：02116049.X), the air source hot pump water heater (patent No. with flow-guiding sleeve heat exchanger boiler： 200510053315.3), there is the heat-pump hot-water unit (patent No. of water internal circulation heat-exchanging loop：200610085913.3) etc., still So dislike refrigerant circuit configuration valve more, throttle structure is complicated；The distribution of refrigerant of multiple-loop refrigeration system is uneven, causes to run Performance is unstable, these reasons, and the marketization of three-way set is made also to have any problem.Another kind is with refrigeration working medium cycle and catalyst carrier Water recycles, then realizes the adjusting to indoor air temperature by fan coil, and the equipment of this form is commonly referred to as that wind regime is cold and hot Water dispenser group.Air source cold-hot water unit, also referred to as air source cold-hot water dispenser group, the refrigeration working medium circulatory system mainly by compressor, Wind heat exchanger, water- to-water heat exchanger, four-way valve, throttle valve are constituted；By water- to-water heat exchanger and mounted on indoor multiple fan coils Heat the cycle of hot water or air conditioner cold water, and heat or cold are sent to fan coil, then the fan through fan coil, hot wind or Cold wind is sent to interior；Currently, air source cold-hot water unit is mainly used for the floor heating project that northern coal changes electricity again；Air source cold-hot water For unit for family's room conditioning and heat load difference, balanced capacity is poor；Northern family, heat load of heating system in winter is very big, and the summer Season, air conditioner refrigerating load was smaller, even if in same season, the date of different temperature, daytime and evening, whether personnel are in, for The demand of air-conditioning and heat load is different；And the air source cold-hot water unit of 5 machines of household central air conditioner generally use, it is only Just there is peak efficiency under the operating mode of design stability, the range of the refrigerating capacity that is self-regulated and heating capacity is smaller, and energy is adapted to fluctuation Power or regulating power are poor；For example, household air conditioning system, when for only having part room to need refrigeration, occurs as soon as big The case where horse traction trolley, not only unit efficiency cannot be played normally, but also adjusted room temperature and often depended upon host frequent start-stop, or be wanted It is solved with frequency-changeable compressor and frequency conversion fan；The weather of severe cold is encountered in winter, even if by the way of floor heating, heating Ability is also insufficient, it is also desirable to auxiliary electrical heater；If winter only with the mode of floor heating, can not also use simple electrical heating The mode of additional heat promotes temperature to hot water, increases heat load, because electricity auxiliary heating makes the hot water temperature that heat pump exports It improves, increases the temperature of floor radiator, increase the heat exported to room, on the other hand, since floor coefficient of heat transfer is basic It is constant, necessarily make the return water temperature of floor radiator is also almost synchronous to rise, eventually leads to return water temperature more than heat pump work temperature Degree is limited and cannot be worked；, just there is the example of this failure in domestic well-known producer；In addition, in order to be provided using water chiller-heater unit Bathing domestic hot-water, it is common practice to the life of a collection heat is inserted on the compressor exhaust pipe road of refrigerant system Hot water heat exchanger.Increased domestic hot-water's heat exchanger can make refrigeration working medium system circulation unstable if design is improper.Life The heat exchange amount of hot water heat exchanger is excessive, and refrigerant becomes saturated liquid in domestic hot-water's heat exchanger, when passing through four-way valve, meeting Because the interior leakage of four-way valve makes high pressure refrigerant liquid short circuit flow to low pressure evaporator and goes, causes refrigeration air-conditioner or heat pump heating Reduced performance, in addition refrigerant is after domestic hot-water's heat exchanger becomes liquid, into the refrigerant volume stream of rear stage heat exchanger Amount reduces, and causes the condensing pressure of system too low, and amount of restriction is insufficient；If the heat exchange amount of design is too small, and cannot meet life The demand of hot water, furthermore problem is more unstable into water tap water temperature and heat exchange amount, so also influencing cooling system air-conditioning And heating performance；Therefore, the design of domestic hot-water's heat exchanger is very crucial；Furthermore air source cold-hot water unit in spring and autumn, how Life bath hot water is provided and how to improve the efficiency of heat pump domestic hot-water and highly important；Although " air-source The foreground of heat pump trilogy supply unit " is tempting, but since the above problem does not solve very well, the prior art is not had thorough grasp in system The difference of each heat exchanger undertaken function and load leads to the air conditioner heat pump household electrical appliances producer of current big shot, all dare not big Zhang Qi Drum conducts promotion to " air source heat pump trilogy supply unit ", still can not release the energy-efficient household central air conditioner of stable operation + heating+hot water three-way set commodity.

Invention content

In order to which existing air source cold-hot water Transformation of Unit is upgraded to energy saving, efficient, stable and balance load-bearing capacity Strong household central air conditioner heating hot water three-way set overcomes the shortcomings of that existing related renovation technique, the present invention propose a kind of heat accumulation Type household central air conditioner heating hot water three-way set is characterized in that band domestic hot-water's heat exchange thermal storage device, air source cold-hot water may be implemented Unit provides domestic hot-water for warm in winter, and has the ability of certain automatic adjustment heat load；In cooling in summer air-conditioning and Domestic hot-water is provided, and has the ability of certain automatic adjustment air conditioner load；Air source heat pump heat can be all played in spring and autumn The function of hydrophone, energy saving supply domestic hot-water.

For the above-mentioned target of realization, the present invention is using following technical solutions：

Heat accumulation type household central air conditioner heating hot water three-way set, abbreviation heat accumulation type three-way set, including：Refrigerant-cycle systems supply Warm/air conditioner water circulating system, domestic hot-water's heat exchange thermal storage device and Control protection system；The refrigerant-cycle systems, it is main It to include the refrigerant mistake of compressor, outdoor wind heat exchanger, four-way valve, throttle valve, water- to-water heat exchanger, domestic hot-water's heat exchange thermal storage device Hot gas heat exchanger, gas-liquid separator further include liquid storage device；The four-way valve, there are four interface, two working conditions, First working condition is winter and spring and autumn day working condition, and the inner passage of four-way valve makes the first and second orifice, the at this time Three, four orifice；Second working condition is summer working condition, and the inner passage of four-way valve makes the first, fourth interface connect at this time Logical, third, two orifices；The throttle valve is bidirectional throttling valve；The water- to-water heat exchanger is shell and tube exchanger or set Pipe heat exchanger or plate heat exchanger；The refrigerant superheat gas heat exchanger of domestic hot-water's heat exchange thermal storage device, abbreviation prime water change Hot device；The compressor or the frequency-changeable compressor with frequency control；The outdoor wind heat exchanger carries outdoor fan；

It is characterized in that：The connection type of the refrigerant-cycle systems is：The exhaust outlet of compressor and the third of four-way valve Interface is connect with the upper and lower interface of the refrigerant line of prime water- to-water heat exchanger respectively；First and second, four interfaces of four-way valve, point It is not connect with the upper interface of refrigerant line of the import of gas-liquid separator, the upper interface of outdoor wind heat exchanger, water- to-water heat exchanger, gas The outlet of liquid/gas separator and the intake interface of compressor connect；The refrigerant pipe of the lower interface and water- to-water heat exchanger of outdoor wind heat exchanger The lower interface on road is connect with two end interfaces of bidirectional throttling valve respectively, and refrigerant circuit fills refrigerant；

Domestic hot-water's heat exchange thermal storage device, it includes prime water- to-water heat exchanger, boiler to be, or further includes being placed in boiler Domestic hot-water's heat exchanger tube；The prime water- to-water heat exchanger is using refrigerant superheat gas converting heat pipe refrigerant superheat gas The heat of body and the water of boiler exchange heat, and produce the heat exchanger of domestic hot-water；The boiler is band heat preservation shell storage heat The water tank of water, but as the heat storage of domestic hot-water's heat exchanger heat source/transfer key equipment, there are four types of forms for it：The first, Built-in refrigerant superheat gas converting heat pipe and domestic hot-water's heat exchanger tube simultaneously；Second, only place domestic hot-water's heat exchanger tube；Third Kind, only place refrigerant superheat gas converting heat pipe；4th kind, without built-in any heat exchanger tube；The boiler of four kinds of forms, it is all total With interface connecting tube and bottom lower interface connecting tube on the top for participating in hot water systemic circulation is equipped with, installed in upper interface connecting tube There are check valve, flow direction to be directed toward boiler, boiler the second gate valve of circulating-water valve is installed in lower interface connecting tube；Described Three, four kinds of boilers do not place boiler when domestic hot-water's heat exchanger tube, have additional bottom tap water inlet pipe and top Domestic hot-water's outlet pipe, is equipped with inlet valve on water inlet pipe, and domestic hot-water's valve is equipped in domestic hot-water's outlet pipe；Described The third boiler also has additional and prime water- to-water heat exchanger that is, without placing boiler when refrigerant superheat gas converting heat pipe The upper and lower interface of self-loopa of the boiler of connection；The heat of refrigerant superheat gas is transferred to boiler by prime water- to-water heat exchanger Hot water, there are two types of exotherm：Mode one, prime water- to-water heat exchanger are independently of plate heat exchanger or shell except boiler The independent prime water- to-water heat exchanger of pipe heat exchanger or double pipe heat exchanger, the upper and lower interface in water route, respectively with boiler The upper and lower interface connection of self-loopa, constitutes seperated self circulation heat exchange mode；Mode two, with the spiral coil being placed in boiler water For prime water- to-water heat exchanger, using hydrothermal convection Natural Circulation heat exchange mode in boiler；Domestic hot-water's takes there are two types of modes： The first, is by domestic hot-water's heat exchanger tube heat exchange type, i.e., when boiler is placed with domestic hot-water's heat exchanger tube, domestic hot-water's heat exchange The lower interface of pipe is connect with tap water inlet pipe, and inlet valve is equipped on water inlet pipe；The upper interface of domestic hot-water's heat exchanger tube with Domestic hot-water's outlet pipe of user connects, and domestic hot-water's outlet valve is equipped on domestic hot-water's outlet pipe；Tap water, which flows through, to be put Domestic hot-water's heat exchanger tube in boiler is set, is sent out after exchanging heat with the hot water in boiler；Second, be that top pressure send ability of swimming, I.e. when boiler does not place domestic hot-water's heat exchanger tube, tap water enters hot water by boiler bottom tap water inlet pipe Case, as long as after domestic hot-water's outlet pipe valve opening of hot water upper box part, the top hot water for having boiler passes through heat of living Water outlet pipe, the spray head etc. for being sent to user need the place of hot water；

Heating/the air conditioner water circulating system and domestic hot-water exchange heat thermal storage device, by the water passage of water- to-water heat exchanger, boiler, Water circulating pump, the fan coil of user and radiator, water path valve, or also dual-purpose water tank is constituted；Its connection type is：Cycle The water outlet mouthpiece of water pump and the water passage lower interface of water- to-water heat exchanger connect；The pipe fitting in three water routes：The water passage of water- to-water heat exchanger Upper interface connection pipe fitting, hot water tank top upper interface connection pipe fitting and hot water send the hot water main valve third lock of supply mains The water inlet port pipe fitting of valve send three interfaces of water three-way connection to connect with hot water respectively, and the water outlet port of third gate valve is stayed It is connect with the water inlet manifold of the fan coil of user and radiator；Two water inlet interfaces of hot water backwater's three-way connection, respectively with Boiler bottom lower interface connection pipe fitting, the fan coil of user are connected with the outfall sewer connector of radiator, hot water backwater The water outlet mouthpiece of three-way connection is directly connect with the import of water circulating pump when system is not provided with dual-purpose water tank；It is arranged in system When dual-purpose water tank, the water outlet mouthpiece of hot water backwater's three-way connection first connect pipe fitting connection with the top water inlet of dual-purpose water tank, The bottom water outlet of dual-purpose water tank is connect with the import of water circulating pump again；The fan coil of user is provided with electrical auxiliary heater；

Heating/the air conditioner water circulating system, the bottom in the lowest point of water-flow circuit, such as boiler, the row of being equipped with The 5th gate valve of water pipe and drain valve；In the highest point of water-flow circuit, the 7th gate valve of air bleeding valve is installed；Pacify in water-flow circuit After installing, opens water supply valve and air bleeding valve, watering cycle circuit are poured water；Each branch circuit parallel connection of fan coil and radiator of user exists Between fan coil and the water-in and water-out manifold of radiator, each branch road is equipped with branch gate valve.

The heat accumulation type household central air conditioner heating hot water three-way set, it is characterised in that：The heat accumulation type three-way set, Have winter heating, summer air-conditioning and four seasons domestic hot-water supply function, and have a degree of heat accumulation cool storage function；It runs mould Formula is divided into winter, summer and spring and autumn day Three models；

Winter modes, function：Water heating heats, domestic hot-water supply；Refrigerant circulation route is when winter modes：Compressor goes out Mouth → prime water- to-water heat exchanger → four-way valve（The interface of third interface → the 4th）The refrigerant passage of → water- to-water heat exchanger（Upper interface → under Interface）→ throttle valve → outdoor wind heat exchanger（Lower interface → upper interface）→ four-way valve（Second interface → first interface）→ gas-liquid The import of separator → compressor；Second, six, seven gate valves of winter modes, water route are closed, and third gate valve is opened, each bypass valve It opens；Heating hot water circulation route be：The water passage of water circulating pump outlet → water- to-water heat exchanger（Lower interface → upper interface）→ the Fan coil, the radiator → dual-purpose water tank of three gate valves → user（Or directly）The import of → water circulating pump；The flow of domestic hot-water： Open domestic hot-water's the first gate valve of valve, when being placed with domestic hot-water's heat exchanger tube in boiler, tap water → inlet valve → life Hot water exchanging pipe → domestic hot-water manifold, for bathing spray etc.；When in boiler without placing domestic hot-water's heat exchanger tube, from Water → boiler → domestic hot-water manifold, for bathing spray etc.；

Summer pattern, function：Air conditioner cold water processed while domestic hot-water supply；Refrigerant circulation route is when summer pattern：Compressor Outlet → prime water- to-water heat exchanger → four-way valve（Third interface → second interface）→ outdoor wind heat exchanger（Upper interface → under connect Mouthful）The refrigerant passage of → throttle valve → water- to-water heat exchanger（Lower interface → upper interface）→ four-way valve（Four interfaces → first interface） The import of → gas-liquid separator → compressor；Summer pattern, second, six, seven gate valves and radiator branch valve in water route are closed, the Three gate valves are opened, and coiler fan bypass valve is opened；The circulation route of air conditioner cold water is：The water passage of exit of pump → water- to-water heat exchanger （Lower interface → upper interface）Fan coil → dual-purpose water tank of → third gate valve → user（Or directly）The import of → water circulating pump；It is raw The flow of hot water living is identical as winter modes；

Spring and autumn day mode, function：Heat pump mode produces domestic hot-water；Refrigerant circulation route is when spring and autumn pattern：Compressor Outlet → prime water- to-water heat exchanger → four-way valve（The interface of third interface → the 4th）The refrigerant passage of → water- to-water heat exchanger（Upper interface → Lower interface）→ throttle valve → outdoor wind heat exchanger（Lower interface → upper interface）→ four-way valve（Second interface → first interface）→ The import of gas-liquid separator → compressor；Spring and autumn day mode, the third in water route, six, seven gate valves are closed, and the second gate valve is opened；Heat Water heat exchange cycle route is：The water passage of exit of pump → water- to-water heat exchanger（Lower interface → upper interface）The lock of → boiler → second Valve → dual-purpose water tank（Or directly）The import of → water circulating pump；The flow of domestic hot-water is identical as winter modes.

The heat accumulation type household central air conditioner heating hot water three-way set, it is characterised in that：The Control protection system, On compressor air-discharging and suction line, the pressure detector of high pressure and low pressure, high temperature and low temperature gauge head are installed, in water- to-water heat exchanger Upper and lower mouthpiece road, in the top water level of boiler and dual-purpose water tank, is equipped with water temperature gauge head；It is installed on fan coil There is indoor temperature gauge head, leaving air temp gauge head is installed in the air outlet of outdoor wind heat exchanger；Control protection system will be according to each The comparison of the measured value and setting value of gauge head, execute the wind turbine of compressor, water circulating pump, outdoor wind heat exchanger and fan coil with And the starting and stopping of each gate valve and the switching of four-way valve；

The control mode of winter modes is：Four-way valve is in the first working condition, when room temperature is less than setting heating temperature, compression Machine, water circulating pump, outdoor wind heat exchanger wind turbine and fan coil fan operation；When room temperature is many less than setting value, to tight When cold setting value, the auxiliary electrical heater of starting fan coil pipe；After room temperature is more than high limit setting value, stop the wind of fan coil Machine, water circulating pump and compressor continue to run with, and continue to the water heat temperature raising of dual-purpose water tank；When the water temperature or refrigeration of dual-purpose water tank Agent high pressure is more than setting value, then compressor is out of service；After room temperature is less than lower limit set value, start cycles water pump and wind first The fan operation of machine coil pipe, the hot water heating stored first with dual-purpose water tank；When the water temperature or room temperature of dual-purpose water tank are less than lower limit When setting value, thermal storage heating underpower, compressor start operation；In the system of not dual-purpose water tank, room temperature is set less than lower limit When definite value, compressor start operation；In the system of not dual-purpose water tank, continues to be more than setting value when room temperature, directly restore compression Machine is run；When executing winter modes, to the water tank temperature of domestic hot-water's heat exchanger without control；

When executing summer pattern, four-way valve is switched to the second working condition, when room temperature is higher than setting air-conditioner temperature, compressor Operation, the fan operation of water circulating pump and fan coil；After room temperature is less than lower limit set value, stop the wind turbine of fan coil, Water circulating pump and compressor continue to run with, to the water cooling cold-storage of dual-purpose water tank；When the water temperature or refrigerant low pressure of dual-purpose water tank When less than lower limit set value, water circulating pump and compressor are out of service；After room temperature is higher than upper limit set value, water circulating pump and wind The fan operation of machine coil pipe, compressor continue to stop, the chilled water stored using dual-purpose water tank, are supplied to room by fan coil Cold air；Continue to be more than setting value when room temperature, storage cold water restores compressor operating for air-conditioning underpower；Executing summer pattern When, to the water tank temperature of domestic hot-water's heat exchanger without control；

When executing spring and autumn day mode, four-way valve is switched to the first working condition, when the water temperature of boiler is less than setting value lower limit When, starting compressor and water circulating pump, the wind turbine of fan coil stop；When the water temperature of boiler is higher than upper limit set value, compression Machine is out of service；When boiler is placed with domestic hot-water's heat exchanger tube, the open and close of water circulating pump and domestic hot-water's valve link, when When taking domestic hot-water's unlatching domestic hot-water's valve, water circulating pump operation, when closing domestic hot-water's valve, water circulating pump is out of service； When boiler is not placed with domestic hot-water's heat exchanger tube, when using top pressure water-out manners, water circulating pump and domestic hot-water's valve are not Linkage, and when boiler water temperature is less than setting value, start the operation of water circulating pump short time first, the hot water of dual-purpose water tank is set Water circulating pump can be stopped by changing to boiler, be less than domestic hot-water by the T4 monitoring of leaving water temperature probe, T4 temperature under dual-purpose water tank Required temperature, then water circulating pump no longer isolated operation；When boiler top, water temperature T5 and T4 are below setting value, then start compression Machine and water circulating pump execute heat pump type heating water running.

The heat accumulation type household central air conditioner heating hot water three-way set, it is characterised in that：The item that its defrosting mode starts Part is, when the leaving air temp for refrigerant low pressure value and fall off rate or wind heat exchanger occur reaches defrosting condition setting value； After starting defrosting mode, four-way valve is switched to the second working condition, and refrigerant system executes summer cycle of modes, each water route gate valve The states of open and close still maintain the states of winter modes, the wind turbine of outdoor wind heat exchanger and fan coil stops, compressor and Water circulating pump continues to run with；When the leaving air temp of outdoor wind heat exchanger exceeds setting value, terminate defrosting, progress outdoor is air-cooled to be changed The fin of hot device dries up process, and the wind turbine of opening chamber's exogenous wind heat exchanger is blown 10-20 seconds, terminates entire defrosting process；Switch four-way For valve to the first working condition, system restores winter modes operation；Defrosting heat, the heat of hot water from dual-purpose water tank, defrosting is fast, Effect is good, room temperature is unaffected；When system does not configure dual-purpose water tank, after starting defrosting mode, opens and connect under boiler The second gate valve of circulating-water valve in mouth connecting tube allows the hot water of boiler to participate in heat supply defrosting.

The heat accumulation type household central air conditioner heating hot water three-way set, it is characterised in that：The prime water- to-water heat exchanger Heat power be unit time refrigerant flow overheated gas enthalpy, i.e. the refrigerant specific enthalpy with identical pressure of compressor outlet The product of the difference and unit interval refrigerant flow of the refrigerant saturated vapor specific enthalpy of power；The heat power of water- to-water heat exchanger is single Whole condensation calorific values of the position time refrigerant flow in pressure at expulsion；Therefore, the heat power of prime water- to-water heat exchanger is only about The 10-20% of the heat power of water- to-water heat exchanger；The heat transfer coefficient of prime water- to-water heat exchanger should be according to gas flowing and outside tube water in pipe The heat transfer coefficient of free convection form calculus, water- to-water heat exchanger forces mobility status to calculate by refrigerant condensation and water, heat transfer coefficient The former is less than the latter, and heat transfer temperature difference the former be more than the latter, in general, the heat transfer area of prime water- to-water heat exchanger exchanges heat than water The small several times of device；If refrigerant superheat gas converting heat pipe and domestic hot-water's heat exchanger tube are placed in boiler simultaneously, overheat life The heat power of hot water exchanging pipe, the product that the temperature difference and water specific heat are passed in and out by water draw rate and domestic hot-water calculate, if with A spray head is only installed at family, can use 5 liters of calculating of hot water flow per minute, and the heat exchange of immersion type coil pipe can be selected in heat transfer coefficient Coefficient；Compare from estimated angle, the heat transfer area of domestic hot-water's heat exchanger tube is about the heat-transfer area of the heat exchanger tube of prime water- to-water heat exchanger Long-pending 4-5 times.

The heat accumulation type household central air conditioner heating hot water three-way set, it is characterised in that：The heat accumulation type three-way set, Including host, boiler, or it further include dual-purpose water tank；With boiler it is seperated self circulation heat exchange mode in prime water- to-water heat exchanger When, host includes whole devices of refrigerant-cycle systems：Compressor, outdoor wind heat exchanger, four-way valve, throttle valve, water heat exchange Device, prime water- to-water heat exchanger, gas-liquid separator, connecting refrigerant lines road, further include water circulating pump and Control protection system, these Accessory is all gathered on host rack pedestal, collectively referred to as host, is completed by factory-assembled；The system placed in boiler water When cryogen overheated gas heat exchanger tube, the compressor exhaust pipe terminal of host and with four-way valve third interface connecting tube terminal, installation There are the first and second angle valve, manufacture the first two angle valve to close, refrigerant is perfused in host refrigerant circulation line；It is existing in units' installation , the first and second angle valve of the refrigerant line of host connects with the upper and lower interface of the refrigerant superheat gas converting heat pipe of boiler again It connects, the air before connecting in refrigerant superheat gas converting heat Guan Xianyong refrigerant blow-off pipes；Boiler and dual-purpose water tank, it is independent to make Make, can independently be arranged close to host according to user place situation；The waterway connector of boiler and dual-purpose water tank, pair stayed with host Waterway connector is answered, is installed in curstomer's site；Fan coil and radiator can be multiple, be installed in parallel；Radiator can be ground Plate radiator or radiator.

The innovation of the invention consists in that：

1, heat accumulation type three-way set of the invention, in the compressor air-discharging of the refrigerant-cycle systems of general air source cold-hot water unit Between mouth and the third interface of four-way valve, it includes prime water- to-water heat exchanger to have newly increased, boiler, or further includes being placed in boiler Domestic hot-water's heat exchanger tube, the domestic hot-water of composition exchanges heat thermal storage device；Coordinate refrigerant circulation loop and heating/air conditioner water cycle The design in circuit, make heat accumulation type three-way set have winter for the domestic hot-water supply that warms up, cooling in summer air-conditioning and domestic hot-water supply, The three of spring and autumn day domestic hot-water supply use function.

2, heat accumulation type three-way set of the invention, one of successful key technology, and with current " air source heat pump three The scheme important difference of alliance unit ", the heat transfer of the prime water- to-water heat exchanger of heat storage type domestic hot-water's heat exchanger of the invention Power is only about the 10-20% of the heat power of water- to-water heat exchanger；Under same heat-transfer capability, the heat transfer area of prime water- to-water heat exchanger The only 15-25% of the heat transfer area of the refrigerant heat exchanger pipe of water- to-water heat exchanger；This design so that heat storage type domestic hot-water changes Hot device is controlled when absorbing the heat of superheated refrigerant, is unlikely to make its refrigerant flowed out to carry liquid, avoid because It causes liquid refrigerant crossfire to low-pressure side for leakage in four-way valve, influences device efficiency；If the heat transfer energy of prime water- to-water heat exchanger Power is identical as water- to-water heat exchanger, refrigerant gas is all just become liquid in prime water- to-water heat exchanger, then it is latter to will result in its The heat exchanger of grade seems short of refrigerant, and refrigerant flow rates are inadequate, and the front and back pressure difference of flow controller is insufficient, and makes system operation Unstable, efficiency is low；Such as when summer operation, there is 50% or so gas in the heat exchanger tube of outdoor wind heat exchanger originally, now All it is the liquid refrigerant that prime water- to-water heat exchanger stream comes, the heat exchanger tube of outdoor wind heat exchanger just becomes liquid storage device, so flowing to section The refrigerant liquid flow and insufficient pressure, amount of restriction for flowing valve are difficult to ensure；In addition, the heat exchange of the prime water- to-water heat exchanger of the present invention Although amount is small, using the cooperation of boiler, the heat collection of the 10-20% for the thermal discharge for only accounting for circularly cooling agent is stored up It deposits, heat demand amount larger when bathing can be provided；Furthermore it is increased with boiler water temperature, the heat exchange amount of prime water- to-water heat exchanger It reduces, when heating is main in winter, the overheated gas and condensation heat of refrigerant all almost focus on water- to-water heat exchanger, so heating Hot water circuit no longer need to through prime water- to-water heat exchanger and boiler, keep hot water heating cycle simple.

3, heat accumulation type three-way set of the invention, by the ingehious design in boiler hot water systemic circulation circuit, spring and autumn day not When needing heating or air-conditioning, prime water- to-water heat exchanger and water- to-water heat exchanger can be utilized to be combined, all recycle the refrigerant condensation of heat pump Hot water heating；The heat storage function for due to boiler or also increasing dual-purpose water tank can store the heat of more heat pump manufacture, institute First compression machine was started with one day, operation half an hour is more, can meet the needs of one day domestic hot-water, very energy saving.

4, heat accumulation type three-way set of the invention, bright spot in addition are that, when the three-way set of configuration dual-purpose water tank, dual-purpose water tank has There is heat accumulation/cold energy storage double-purpose functional, air conditioner load can be balanced with the summer, the winter balances heat load, reduces compressor start-stop frequency, Energy-saving effect is more preferable；For example, household central air conditioner unit, in summer, user may only need regional area and a small number of rooms to need Air-conditioning is wanted, without all air conditioner refrigeratings, but if not using inverter air conditioner, but determines frequency machine, compressor operating speed Constant, then the refrigerating capacity of unit is more than the load of demand, and entire refrigerant system efficiency is low；And use the storage of dual-purpose water tank Water, then in the case where the cooling load of demand is smaller, extra refrigeration work consumption is absorbed by the water of dual-purpose water tank, is converted into two The cold stored with water tank.When dual-purpose water tank water temperature drops to lower limit, compressor stops again.During compressor is stopped, If room temperature rises, start cycles water pump is only needed, room is given by coiler fan using the chilled water of dual-purpose water tank Cooling；When the water temperature of dual-purpose water tank is raised to setting value, restart compressor cooling；Due to reducing the starting frequency of unit, and energy It is run with design point full load in unit operation, efficiency highest, so energy-saving effect is notable.Heat storage capacity is more, balance The ability of heat load is stronger.

5, heat storage type domestic hot-water's heat exchanger of the invention devises two kinds of forms according to user demand：（One）By changing Heat pipe exchanging type, due to using design domestic hot-water's heat exchanger tube big heat transfer area and be placed in boiler, it is ensured that originally Water can obtain the domestic hot-water of suitable temperature simultaneously by the abundant heat exchange of domestic hot-water's heat exchanger tube and hot water in boiler, Its advantage is that：（1）It can ensure domestic hot-water's fresh clean；（2）The water of boiler can carry out softening and remove metal ion treatment, It avoids, because superheated refrigerant temperature is high, leading to the scale problems outside superheated refrigerant heat exchanger tube；（3）Boiler can not be held Pressure；The disadvantage is that：Increase the cost and boiler production process of domestic hot-water's heat exchanger tube；（Two）When top pressure send water, as long as once changing Heat, it is simple in structure.

6, heat storage type domestic hot-water's heat exchanger of the invention is exchanged heat using the heat storage type domestic hot-water of seperated self-loopa heating Device, have the advantages that automatically adjust heat-transfer capability, without control piece and make it is simple.

7, heat accumulation type three-way set of the invention, refrigerant-cycle systems and water circuit system very simple, refrigerant system change Become operational mode, only switches a four-way valve, without technical difficulty；In water circuit system, only switch two valves in spring and autumn；System The structure of system and control are all extremely simple, with simplest system, realize most functions and most energy saver mode.

8, heat accumulation type three-way set of the invention, the design separately made using host and boiler, dual-purpose water tank, can be refrigeration The refrigerant of the agent circulatory system first concentrates in host, and the accurate filling of refrigerant is completed in factory, ensures refrigerant filling Amount is accurate, and device efficiency improves, and in-site installation simplifies；Boiler and dual-purpose water tank independently make, simple for process.

In conclusion the heat accumulation type three-way set of the present invention, with thermodynamics, thermal conduction study and hydromechanical theoretical direction, root According to user demand throughout the year, and for a long time to the practical experience of multifunctional heat pump air-conditioner hot water three-way set research, set is most Ripe technology, the heat accumulation type three-way set of design, structure and control are all extremely simple, make and mounting process is simple, varying duty Automatic adjustment, full-featured, the four seasons are applicable in, reliable for operation, efficient, good energy-conserving effect.Therefore, heat accumulation type three of the invention is used Machine has larger novelty, the advance of high level and wide applicability, and technology content is very high, should authorize invention as early as possible Patent.

Description of the drawings

Fig. 1 is the system structure diagram of the heat accumulation type three-way set of the embodiment of the present invention 1, the refrigerant circulation of simultaneous winter modes With waterway circulating flow diagram, design feature, the refrigerant superheat gas converting heat pipe of prime water- to-water heat exchanger and domestic hot-water change Heat pipe is equipped with dual-purpose water tank with being placed in boiler.

Fig. 2 is that the refrigerant circulation of the heat accumulation type three-way set summer pattern of the embodiment of the present invention 1 and waterway circulating flow are shown It is intended to.

Fig. 3 is the refrigerant circulation and waterway circulating flow of the heat accumulation type three-way set spring and autumn day mode of the embodiment of the present invention 1 Schematic diagram.

Fig. 4 is the refrigerant circulation and waterway circulating stream of the heat accumulation type three-way set winter defrosting mode of the embodiment of the present invention 1 Journey schematic diagram.

Fig. 5 is the system structure of the heat accumulation type three-way set of the embodiment of the present invention 2, and winter modes refrigerant circulation and Waterway circulating flow diagram, design feature：Prime water- to-water heat exchanger is seperated self circulation heat exchange mode with boiler.

Fig. 6 is the system structure of the heat accumulation type three-way set of the embodiment of the present invention 3, and winter modes refrigerant circulation and Waterway circulating flow diagram, design feature：Refrigerant superheat gas converting heat pipe is only placed in boiler, does not place domestic hot-water Heat exchanger tube goes out domestic hot-water's mode using top pressure.

Fig. 7 is the system structure of the heat accumulation type three-way set of the embodiment of the present invention 4, and winter modes refrigerant circulation and Waterway circulating flow diagram, design feature：Prime water- to-water heat exchanger is seperated self circulation heat exchange mode, top pressure birth with boiler Hot water mode living.

Fig. 8 is the system structure of the heat accumulation type three-way set of the embodiment of the present invention 5, the refrigerant circulation of simultaneous spring and autumn day mode With waterway circulating flow diagram, design feature:Dual-purpose water tank is not configured, domestic hot-water's mode is gone out using top pressure.

Specific embodiment：

The structure and operation principle that present invention will be further described in detail through examples below in conjunction with the accompanying drawings, but the content of present invention is not It is only limitted to shown in attached drawing.

Embodiment 1, by the common explanation of attached drawing 1,2,3,4；The system structure of the heat accumulation type three-way set of the embodiment of the present invention 1, Referring to attached drawing 1, including：Refrigerant-cycle systems, heating/air conditioner water circulating system, domestic hot-water's heat exchanger and control protection System；Fig. 1 gives refrigerant-cycle systems, and the structural representation of heating/air conditioner water circulating system and domestic hot-water's heat exchanger is closed System；The refrigerant-cycle systems include mainly compressor 1, outdoor wind heat exchanger 3, four-way valve 2, throttle valve 4, water heat exchange Prime water- to-water heat exchanger 7, the gas-liquid separator 6 of device 5, domestic hot-water's heat exchange thermal storage device；The outdoor wind heat exchanger 3 is incidentally had family Outer wind turbine 3f；The four-way valve 2, there are four interface, two working conditions, the first working condition is winter and spring and autumn day work State, at this time the inner passage of four-way valve make first and second interface 2a, 2b connection, third and fourth interface 2c, 2d connection；Second work State be summer working condition, at this time the inner passage of four-way valve make first, fourth interface 2a, 2d connection, third, two interface 2c, 2b is connected to；The connection type of refrigerant-cycle systems is：The exhaust outlet 1a of the compressor 1 and third interface 2c of four-way valve 2, respectively It is connected with the upper inlet of the refrigerant heat exchanger pipeline of prime water- to-water heat exchanger, lower outlet；First and second, four interface 2a of four-way valve, 2b, 2d, respectively with the import of gas-liquid separator 6, the upper interface of outdoor wind heat exchanger 3, the refrigerant heat exchanger pipe of water- to-water heat exchanger 5 Upper interface connection；The outlet of gas-liquid separator is connect with the intake interface 1b of compressor；The lower interface of outdoor wind heat exchanger 4 and The lower interface of the refrigerant heat exchanger pipe of water- to-water heat exchanger 5 is connect with two end interfaces of bidirectional throttling valve 4 respectively, and refrigerant circuit fills Refrigerant；The throttle valve 4 is bidirectional throttling valve；The water- to-water heat exchanger 5 is pipe heat exchanger or plate heat exchanger.

Heating/the air conditioner water circulating system and domestic hot-water's heat exchanger of embodiment 1, by the water passage of water- to-water heat exchanger 5, dual-purpose Water tank 10, boiler 8, water circulating pump 12, the fan coil 11a of user and radiator 11 and connecting line and water path valve structure At fan coil carries electrical auxiliary heater；Referring to Fig. 1, their connection type is：Interface connects on the water passage of water- to-water heat exchanger It takes over, interface connecting tube send the water inlet port of the hot water main valve third gate valve of supply mains to connect with hot water on the top of boiler Pipe, send three interfaces of water three-way connection S1 to connect with hot water respectively；The water outlet port of third gate valve F3, stays the wind turbine with user Coil pipe 11a is connected with the water inlet manifold of radiator 11；Two water inlet interfaces of hot water backwater's three-way connection S2, respectively with boiler Bottom lower interface connecting tube, the fan coil of user are connected with the outfall sewer of radiator, and hot water backwater's three-way connection S2's goes out The upper water inlet connecting tube of water interface and dual-purpose water tank connects；The import of the lower water outlet mouthpiece and water circulating pump of dual-purpose water tank connects It connects；Boiler cycle the second gate valve of Water gate valve F2 is installed in the lower interface connecting tube of boiler 8.

The import of domestic hot-water's heat exchanger tube 9 is connect with running water pipe, and check valve D1 is equipped on water inlet pipe；Domestic hot-water changes The outlet of heat pipe 9 and domestic hot-water's pipe of client connect, and the first valve of hot water valve F1 is equipped on domestic hot-water's pipe；Refrigerant mistake The heat of hot gas passes through free convection circulating-heating by the heat exchanger tube of prime water- to-water heat exchanger and the water of boiler；It is using When domestic hot-water, hot water valve is opened, tap water flows through the hot water that domestic hot-water's heat exchanger tube is stored by boiler and heats.

In the bottom of the lower of water-flow circuit, such as boiler, the 5th gate valve F5 of drainpipe and drain valve is installed；? The return main of water-flow circuit, the upper hose of grafting water loop are equipped with the 6th gate valve of water supply valve in upper hose；It is recycled in water The highest point in circuit is equipped with air bleeding valve, the 7th gate valve F7；After water-flow circuit installs, water supply valve F6 and exhaust are opened Valve F7, watering cycle circuit fills distilled water or softened water, and after filling water, water supply valve F6 and air bleeding valve F7 are closed；The wind turbine of user Between fan coil and the water-in and water-out manifold of radiator, each branch road is equipped with branch for coil pipe and each branch circuit parallel connection of radiator Gate valve, such as fan coil branch are equipped with gate valve F4a, and radiator branch is equipped with gate valve F4.

Prime water- to-water heat exchanger 7 is refrigerant superheat gas heat exchanger, and the present embodiment is exchanged heat with spiral coil 7 for prime water Device is placed directly in boiler water, using water self circulation heat exchange mode in boiler.

The heat accumulation type three-way set of the present invention has the winter heating of heat storage type, the work(of summer air-conditioning and four seasons domestic hot-water supply Can, operational mode is divided into winter, summer and spring and autumn day Three models.

Winter modes, referring to Fig. 1, function：Water heating heats, and domestic hot-water supply；Refrigerant circulation road when winter modes Line is：The outlet 1a of compressor 1（Refrigerant compression process）→ prime water- to-water heat exchanger 7（Release the heat of refrigerant superheat gas） → four-way valve 2（Third interface 2c → the 4th interface 2d）The refrigerant passage of → water- to-water heat exchanger 5（Upper interface → lower interface）（It releases The condensation heat of refrigerant, becomes highly pressurised liquid）→ throttle valve 4（Constant enthalpy pressure reduction）→ outdoor wind heat exchanger 3（Lower interface → Upper interface）（Low pressure is evaporated, and is absorbed outdoor air heat process, is become low-pressure steam）→ four-way valve 2（Second interface 2b → the first Interface 2a）The import 1b of 6 → compressor of → gas-liquid separator；Second, six, seven gate valve F2, F6, F7 of winter modes, water route are closed It closes, third gate valve F3 is opened, and each bypass valve F4, F4a is opened；Heating hot water circulation route be：The outlet of water circulating pump 12 → The water passage of water- to-water heat exchanger（Lower interface → upper interface）（Water is heated）The fan coil 11a of → third gate valve F3 → user dissipates Hot device 11（Heat dissipation）The import of 10 → water circulating pump of → dual-purpose water tank 12；The flow of domestic hot-water：Open domestic hot-water's valve first Gate valve F1, tap water → domestic hot-water's heat exchanger tube 9 (after exchanging heat with boiler hot water) → domestic hot-water manifold, for bathing spray etc. With；The hot water of boiler is not involved in heating hot water circuit.

Summer pattern, referring to Fig. 2, function：Air-conditioning freezing processed while domestic hot-water supply；Refrigerant circulation road when summer pattern Line is：The outlet of compressor（Pressurization）→ prime water- to-water heat exchanger（The heat for releasing refrigerant superheat gas, becomes being saturated Gas）→ four-way valve（Third interface 2c → second interface 2b）→ outdoor wind heat exchanger 3（Upper interface → lower interface）（Release condensation Heat becomes highly pressurised liquid）→ throttle valve（Decompression）The refrigerant passage of → water- to-water heat exchanger（Lower interface → upper interface）（Evaporation is inhaled Heat, air conditioning water processed）→ four-way valve（4th interface 2d → first interface 2a）The import of → gas-liquid separator → compressor；Summer Day mode, water route second, six, seven gate valve F2, F6, F7 and radiator branch valve F4 are closed, and third gate valve F3 is opened, coiler fan Bypass valve F4a is opened；The circulation route of air conditioner cold water is：The water passage of outlet → water- to-water heat exchanger 5 of water pump 12（Lower interface → on Interface）The import of fan coil 11a → 10 → water circulating pump of dual-purpose water tank 12 of → third gate valve F3 → user；Domestic hot-water's Flow：Open domestic hot-water's the first gate valve of valve, tap water → domestic hot-water's heat exchanger tube（After exchanging heat with boiler hot water）→ life Hot water manifold, for bathing spray etc.；The hot water of boiler is not involved in air conditioner cold water cycle.

Spring and autumn day mode, referring to Fig. 3, function：Heat pump mode produces domestic hot-water；Refrigerant circulation route when spring and autumn pattern It is：The outlet of compressor（Refrigerant gas is pressurized）→ prime water- to-water heat exchanger（Overheated gas heat is released, is heated from water- to-water heat exchanger The recirculated water come）→ four-way valve 2（Third interface 2c → the 4th interface 2d）The refrigerant passage of → water- to-water heat exchanger 5（Upper interface → Lower interface）（Release the heat of condensation, recirculated water of the heating temperature from dual-purpose water tank）→ throttle valve 4（Decompression）→ outdoor wind heat exchanger 3（Lower interface → upper interface）（Evaporation, heat absorption）→ four-way valve 2（Second interface 2b → first interface 2a）→ gas-liquid separator 6 The import of → compressor；Spring and autumn day mode, water route third, six, seven gate valves are closed, and the second gate valve is opened；Hot water heat exchange cycle road Line is：The water passage of outlet → water- to-water heat exchanger 5 of water pump 12（Lower interface → upper interface）（Heat absorption heating）→ boiler 8（It absorbs The refrigerant superheat gas heat of prime water- to-water heat exchanger, further heats up）→ the second gate valve F2 → dual-purpose water tank → water circulating pump 12 import；The flow of domestic hot-water：Domestic hot-water valve the first gate valve F1 is opened, tap water → domestic hot-water's heat exchanger tube is (with warm After tank hot water's heat exchange) → domestic hot-water manifold, for bathing spray etc.；The hot water of boiler and dual-purpose water tank storage, can grow Time provides the heat of domestic hot-water's heat exchanger；Fan coil and radiator do not have water cycle.

The Control protection system of the heat accumulation type three-way set of embodiment 1, referring to attached drawing 1,2,3,4, in compressor air-discharging and suction On air pipe, pressure detector Y1, Y2 of high pressure and low pressure be installed, high temperature and low temperature gauge head T1, T2 are upper and lower in water- to-water heat exchanger Mouthpiece road is equipped with water temperature gauge head T3, T4, in the top water level of boiler 8 and dual-purpose water tank 10, is equipped with water temperature gauge head T5 and T6 is equipped with room temperature gauge head T7 at fan coil, is equipped with leaving air temp gauge head in outdoor 3 air outlet of wind heat exchanger T8；Control protection system executes compressor, water circulating pump, fan unit by according to the comparison of the measured value and setting value of each gauge head The wind turbine of pipe and the automatic starting and stopping of each electric gate valve and the switching of four-way valve.

Referring to attached drawing 1, the control mode of winter modes is：Four-way valve 2 is in the first working condition, is set when room temperature T7 is less than When determining heating temperature, the wind turbine 11f operations of compressor 1, water circulating pump 12, the wind turbine 3f of outdoor wind heat exchanger and fan coil； When room temperature is many less than setting value, severe cold setting value is arrived, such as low 10 DEG C, starts auxiliary electrical heater；When room temperature is more than that high limit is set After definite value, stop the wind turbine of fan coil, water circulating pump and compressor continue to run with, and continue to heat liter to the water of dual-purpose water tank 10 Temperature；When the water temperature T 6 or refrigerant high pressure Y1 of dual-purpose water tank are more than setting value, then compressor is out of service；When room temperature is less than lower limit After setting value, the fan operation of start cycles water pump and fan coil first, the hot water heating stored first with dual-purpose water tank 10； When the water temperature T 6 of dual-purpose water tank or room temperature T7 are less than lower limit set value, thermal storage heating underpower, compressor start operation.

Referring to attached drawing 2, when executing summer pattern, four-way valve is switched to the second working condition, when room temperature T7 is higher than setting When air-conditioner temperature, compressor operating, the fan operation of water circulating pump and fan coil；After room temperature is less than lower limit set value, stop The only wind turbine 11a of fan coil, water circulating pump 12 and compressor 1 continue to run with, to the water cooling cold-storage of dual-purpose water tank 10；When two When being less than lower limit set value with the water temperature T 6 or refrigerant low pressure Y2 of water tank, water circulating pump and compressor are out of service；Work as room temperature After upper limit set value, the fan operation of water circulating pump and fan coil, compressor continues to stop, and is stored using dual-purpose water tank Chilled water, by fan coil to room for cold air；Continue to be more than setting value when room temperature, storage cold water for air-conditioning underpower, Restore compressor operating；When executing summer pattern, to the water tank temperature of domestic hot-water's heat exchanger without control.

Referring to attached drawing 3, when executing spring and autumn day mode, four-way valve is switched to the first working condition, when the water temperature of boiler 8 When T5 is less than setting value lower limit, the wind turbine 11f of starting compressor and water circulating pump, fan coil stops；When the water temperature of boiler T5 is higher than upper limit set value, and compressor is out of service；When compressor is not run, water circulating pump 12 and domestic hot-water's valve F1's Open and close keep linkage, when taking domestic hot-water unlatching domestic hot-water valve F1, water circulating pump operation, and when closing domestic hot-water's valve, Water circulating pump is out of service；When 5 low-pressure settings of boiler water temperature T, compressor, water circulating pump starting operation.

Referring to attached drawing 4, heat accumulation type household central air conditioner heating hot water three-way set described in embodiment 1, defrosting mode rises Dynamic condition is to remove ice-lolly when the leaving air temp T8 for refrigerant low pressure value Y2 and fall off rate or wind heat exchanger occur is reached Part setting value；After starting defrosting mode, four-way valve 2 is switched to the second working condition, and refrigerant system executes summer cycle of modes, The state of the open and close of each gate valve in water route still maintains the state of winter modes, the wind turbine 3f of outdoor wind heat exchanger 3 and fan coil Stop with 11f, compressor and water circulating pump continue to run with；When the leaving air temp T8 of outdoor wind heat exchanger exceeds setting value, knot Beam defrosts, and the fin for carrying out outdoor air cooling heat exchanger dries up process, and the wind turbine 3f of opening chamber's exogenous wind heat exchanger is blown 10-20 seconds, ties Beam entirely defrosts process；Four-way valve is switched to the first working condition, and system restores winter modes operation；Defrosting heat comes from two With the heat of hot water of water tank, defrosting is fast, effect is good, room temperature is unaffected.

The heat power of the prime water- to-water heat exchanger of the heat accumulation type three-way set of embodiment 1 is unit time refrigerant flow mistake The enthalpy of hot gas, the i.e. difference and list of the refrigerant saturated vapor specific enthalpy of the refrigerant specific enthalpy and uniform pressure of compressor outlet The product of position time refrigerant flow；The heat power of water- to-water heat exchanger is that unit time refrigerant flow is solidifying in pressure at expulsion Tie calorific value；Therefore, the heat power of prime water- to-water heat exchanger is about the 10-20% of the heat power of water- to-water heat exchanger；For example, heat accumulation type The refrigerant of three-way set is R22, and the MPa of low pressure Y2=0.49556 of refrigerant circulation, evaporating temperature is 0 DEG C of (273 K）, low pressure The specific enthalpy of saturated vapor be 404.93 kJ/kg, specific entropy be 1.7509 kJ/K-kg, when adiabatic compression to pressure at expulsion Y1= The temperature of 2.1678 MPa, overheated gas are 78.58 DEG C (351.58 K), and specific enthalpy is 442.28 kJ/kg, the R22 of uniform pressure The saturated gas of refrigerant and the specific enthalpy of saturated liquid are respectively 417.65 kJ/kg and 270.10 kJ/kg, and overheated gas is opposite It is in the specific enthalpy difference of saturated gas（442.28-417.65）The heat of condensation of=24.63 kJ/kg, high-pressure refrigerant is （417.65-270.10）=147.55 kJ/kg, the heat content of refrigerant superheat gas and the ratio of the heat of condensation are 24.63/ 147.65 = 16.7%；The refrigerant compression work(of unit kilogram is (442.28-404.93)=37.35 kJ/kg, when 5Ph heat accumulations Compressor theory input power P=5 × kW of 0.735.5=3.6775 of type three-way set, the circular flow of refrigerant are 3.6775/37.35=0.0985 kg/s, so, the Theoretical Design heat exchange amount of prime water- to-water heat exchanger is 24.65 × 0.0985= The heat exchange amount of 2.43 kW, water- to-water heat exchanger are 147.55 × 0.0985=14.5 kW；Prime water- to-water heat exchanger and water- to-water heat exchanger design When, heat transfer form, the difference of heat transfer coefficient and heat transfer temperature difference that should be according to the two, then calculate the specific heat transfer area of the two； The volume of boiler and dual-purpose water tank can be changeable according to user demand, the present embodiment design boiler be 100 liters and The volume of dual-purpose water tank is all 200 liters；The heat power of domestic hot-water's heat exchanger tube passes in and out temperature by water draw rate and domestic hot-water Difference and the product of water specific heat calculate, if user only installs a spray head, can use 5 liters of calculating of hot water flow per minute, The coefficient of heat transfer of immersion type coil pipe can be selected in heat transfer coefficient；Compare from estimated angle, the heat transfer area of domestic hot-water's heat exchanger tube, greatly In 4-5 times of the heat transfer area of the heat exchanger tube of prime water- to-water heat exchanger.Domestic hot-water's heat exchanger tube 9 of heat storage type domestic hot-water's heat exchanger Heat transfer area, be more than 5 times of heat transfer area of 7 heat exchanger tube of prime water- to-water heat exchanger, it is therefore an objective to be quickly obtained clean life heat Water.

Referring to attached drawing 1,2,3,4, the heat accumulation type three-way set of embodiment 1, three bodies peaces of the heat accumulation type three-way set point Dress combination：Host, the hot water box member of domestic hot-water's device and dual-purpose water tank；Host includes whole devices of refrigerant-cycle systems： Compressor 1, outdoor wind heat exchanger 3, four-way valve 2, throttle valve 4, water- to-water heat exchanger 5, prime water- to-water heat exchanger 7, connecting refrigerant lines road, And water circulating pump 12 and Control protection system, all set are mounted on host rack pedestal, collectively referred to as host, by factory-assembled It completes；Boiler 8 and the independent making of dual-purpose water tank 10；The refrigerant superheat gas converting heat of spiral coil is placed in boiler 8 Pipe 7 and domestic hot-water's heat exchanger tube 9 can independently be arranged according to user place situation close to host；Compressor air-discharging pipeline on host End and with four-way valve third interface connecting tube terminal, first and second angle valve Ja, Jb be installed, manufacture the first two angle valve is closed, host Refrigerant circulation loop in refrigerant is perfused, ensure that accurate refrigerant can be perfused in factory in the refrigerant system of host Amount；When heat accumulation type three-way set is in user's in-site installation, the interface of the first and second angle valve and the heat exchanger tube both ends of prime water- to-water heat exchanger Mouth connector connection, is tightened by nut, is then turned on two angle valves, constitute refrigerant circulation loop.

Heating/air conditioner water circulating system of embodiment 1 and the water route of domestic hot-water's heat exchanger are installed at the scene；The wind of client Machine coil pipe can be multiple is installed in parallel；Using floor hot water heating when, winter heating can by parallel with fan coil, It is connected on sending between supply mains and return main for heating/air conditioner water circulating system.

The heat accumulation type three-way set of embodiment 2, referring to attached drawing 5, with embodiment 1 difference lies in：The prime water of embodiment 2 Heat exchanger uses seperated self circulation heat exchange mode with boiler.The heat accumulation type three-way set of embodiment 2, still by host, boiler 8 It is constituted with 10 three-major-items of dual-purpose water tank, but has been mounted directly prime water- to-water heat exchanger 7 on the body of host, such refrigerant circulation Whole devices of system are just all mounted on host, ensure that accurate refrigeration can be perfused in factory in the refrigerant system of host Dosage；When heat accumulation type three-way set is in user's in-site installation, the upper/lower terminal mouth in the water route of prime water- to-water heat exchanger again with boiler Upper and lower self-loopa interface connection.Function, the control mode of embodiment 2 are all same as Example 1.

The heat accumulation type three-way set of embodiment 3, referring to attached drawing 6, Fig. 6 is that the heat accumulation type three-way set of the embodiment of the present invention 3 is It unites structure, and the refrigerant circulation and waterway circulating flow diagram of winter modes, the difference of it and embodiment 1 is boiler Interior placement refrigerant superheat gas converting heat pipe, does not place domestic hot-water's heat exchanger tube, goes out domestic hot-water's mode using top pressure.Other Function and control mode are same as Example 1.

Due to being equipped with check valve on the top of boiler in interface connecting tube, flow direction is directed toward boiler, lower interface connection The second gate valve of boiler circulating-water valve is installed, when the second gate valve is closed, hydraulic pressure is equal to the pressure of tap water in boiler on pipe Power, and the hydraulic pressure of winter heating hot water circuit and summer air conditioner cold water cycle, are less than tap water pressure, check valve D2 prevents life Hot water living flows to heating or air-conditioning water-flow circuit；Of course for safety factor is increased, check valve can also be replaced with gate valve Or a gate valve is further added by interface connecting tube on the top of boiler；When taking domestic hot-water, as long as opening domestic hot-water Valve F1 can be obtained.

The heat accumulation type three-way set of embodiment 4, referring to attached drawing 7, Fig. 7 is that the heat accumulation type three-way set of the embodiment of the present invention 4 is System structure, the refrigerant circulation and waterway circulating flow diagram of simultaneous winter modes, design feature：Prime water- to-water heat exchanger and heat Water tank is seperated self circulation heat exchange mode, and any heat exchanger tube is not placed in boiler, goes out domestic hot-water's mode using top pressure；Implement The host and the connection type of prime water- to-water heat exchanger and boiler of example 4 are same as Example 2, and domestic hot-water's takes mode and reality It is identical to apply example 3；Its function and control are all identical as implementing 1.

The heat accumulation type three-way set of embodiment 5, referring to attached drawing 8, Fig. 8 is that the heat accumulation type three-way set of the embodiment of the present invention 5 is System structure, the refrigerant circulation and waterway circulating flow diagram of simultaneous spring and autumn day mode, design feature：Dual-purpose water tank is not configured, Domestic hot-water's mode is gone out using top pressure；The system structure of embodiment 5 is heating/air conditioner water circulating system compared with Example 2 In, reduce dual-purpose water tank；Compared with embodiment 1,2,3,4, embodiment 5 equally has the winter heating of heat storage type, summer The basic function of air-conditioning and four seasons domestic hot-water supply, but it is the reduction of the function that heat accumulation adjusts the air conditioner load that supplies to warm up；Therefore, real The compressor for applying example 5 uses the compressor of frequency control, indoor fan to use multi-change speed or frequency control.

Claims (6)

1. The hot water three-way set 1. heat accumulation type household central air conditioner heats, abbreviation heat accumulation type three-way set, including：Refrigerant-cycle systems, Heating/air conditioner water circulating system, domestic hot-water's heat exchange thermal storage device and Control protection system；The refrigerant-cycle systems, The refrigerant of the main thermal storage device that exchanges heat including compressor, outdoor wind heat exchanger, four-way valve, throttle valve, water- to-water heat exchanger, domestic hot-water Overheated gas heat exchanger, gas-liquid separator further include liquid storage device；The four-way valve, there are four interface, two work shapes State, the first working condition are winter and spring and autumn day working condition, and the inner passage of four-way valve makes the first and second orifice at this time, Third and fourth orifice；Second working condition is summer working condition, and the inner passage of four-way valve makes the first, fourth interface at this time Connection, third, two orifices；The throttle valve is bidirectional throttling valve；The water- to-water heat exchanger, be shell and tube exchanger or Double pipe heat exchanger or plate heat exchanger；The refrigerant superheat gas heat exchanger of domestic hot-water's heat exchange thermal storage device, abbreviation prime water Heat exchanger；The compressor or the frequency-changeable compressor with frequency control；The outdoor wind heat exchanger carries outdoor fan；

   It is characterized in that：The connection type of the refrigerant-cycle systems is：The exhaust outlet of compressor and the third of four-way valve Interface is connect with the upper and lower interface of the refrigerant line of prime water- to-water heat exchanger respectively；First and second, four interfaces of four-way valve, point It is not connect with the upper interface of refrigerant line of the import of gas-liquid separator, the upper interface of outdoor wind heat exchanger, water- to-water heat exchanger；Gas The outlet of liquid/gas separator and the intake interface of compressor connect；The refrigerant pipe of the lower interface and water- to-water heat exchanger of outdoor wind heat exchanger The lower interface on road is connect with two end interfaces of bidirectional throttling valve respectively；Refrigerant circuit fills refrigerant；

   Domestic hot-water's heat exchange thermal storage device, it includes prime water- to-water heat exchanger, boiler to be, or further includes being placed in boiler Domestic hot-water's heat exchanger tube；The prime water- to-water heat exchanger is using refrigerant superheat gas converting heat pipe refrigerant superheat gas The heat of body and the water of boiler exchange heat, and produce the heat exchanger of domestic hot-water；The boiler is band heat preservation shell storage heat The water tank of water, but as the heat storage of domestic hot-water's heat exchanger heat source/transfer key equipment, there are four types of forms for it：The first, Built-in refrigerant superheat gas converting heat pipe and domestic hot-water's heat exchanger tube simultaneously；Second, only place domestic hot-water's heat exchanger tube；Third Kind, only place refrigerant superheat gas converting heat pipe；4th kind, without built-in any heat exchanger tube；The boiler of four kinds of forms, it is all total With interface connecting tube and bottom lower interface connecting tube on the top for participating in hot water systemic circulation is equipped with, installed in upper interface connecting tube There are check valve, flow direction to be directed toward boiler, boiler the second gate valve of circulating-water valve is installed in lower interface connecting tube；Described Three, four kinds of boilers do not place boiler when domestic hot-water's heat exchanger tube, have additional bottom tap water inlet pipe and top Domestic hot-water's outlet pipe, is equipped with inlet valve on water inlet pipe, and domestic hot-water's valve is equipped in domestic hot-water's outlet pipe；Described The third boiler also has additional and prime water- to-water heat exchanger that is, without placing boiler when refrigerant superheat gas converting heat pipe The upper and lower interface of self-loopa of the boiler of connection；The heat of refrigerant superheat gas is transferred to boiler by prime water- to-water heat exchanger Hot water, there are two types of heat exchange mode：Mode one, prime water- to-water heat exchanger are independently of plate heat exchanger or shell except boiler The independent prime water- to-water heat exchanger of pipe heat exchanger or double pipe heat exchanger, the upper and lower interface in water route, respectively with boiler The upper and lower interface connection of self-loopa, constitutes seperated self circulation heat exchange mode；Mode two, with the spiral coil being placed in boiler water For prime water- to-water heat exchanger, using hydrothermal convection Natural Circulation heat exchange mode in boiler；Domestic hot-water's takes there are two types of modes： The first, is by domestic hot-water's heat exchanger tube heat exchange type, i.e., when boiler is placed with domestic hot-water's heat exchanger tube, domestic hot-water's heat exchange The lower interface of pipe is connect with tap water inlet pipe, and inlet valve is equipped on water inlet pipe；The upper interface of domestic hot-water's heat exchanger tube with Domestic hot-water's outlet pipe of user connects, and domestic hot-water's outlet valve is equipped on domestic hot-water's outlet pipe；Tap water, which flows through, to be put Domestic hot-water's heat exchanger tube in boiler is set, is sent out after exchanging heat with the hot water in boiler；Second, be that top pressure send ability of swimming, I.e. when boiler does not place domestic hot-water's heat exchanger tube, tap water enters hot water by boiler bottom tap water inlet pipe Case, as long as after domestic hot-water's outlet pipe valve opening of hot water upper box part, the top hot water for having boiler passes through heat of living Water outlet pipe, the spray head etc. for being sent to user need the place of hot water；

   Heating/the air conditioner water circulating system and domestic hot-water exchange heat thermal storage device, by the water passage of water- to-water heat exchanger, boiler, Water circulating pump, the fan coil of user and radiator, water path valve, or also dual-purpose water tank is constituted；Its connection type is：Cycle The water outlet mouthpiece of water pump and the water passage lower interface of water- to-water heat exchanger connect；The pipe fitting in three water routes：The water passage of water- to-water heat exchanger Upper interface connection pipe fitting, hot water tank top upper interface connection pipe fitting and hot water send the hot water main valve third lock of supply mains The water inlet port pipe fitting of valve send three interfaces of water three-way connection to connect with hot water respectively, and the water outlet port of third gate valve is stayed It is connect with the water inlet manifold of the fan coil of user and radiator；Two water inlet interfaces of hot water backwater's three-way connection, respectively with Boiler bottom lower interface connection pipe fitting, the fan coil of user are connected with the outfall sewer connector of radiator, hot water backwater The water outlet mouthpiece of three-way connection is directly connect with the import of water circulating pump when system is not provided with dual-purpose water tank；It is arranged in system When dual-purpose water tank, the water outlet mouthpiece of hot water backwater's three-way connection first connect pipe fitting connection with the top water inlet of dual-purpose water tank, The bottom water outlet of dual-purpose water tank is connect with the import of water circulating pump again；The fan coil of user is provided with electrical auxiliary heater；

   Heating/the air conditioner water circulating system, the bottom in the lowest point of water-flow circuit, such as boiler, the row of being equipped with The 5th gate valve of water pipe and drain valve；In the highest point of water-flow circuit, the 7th gate valve of air bleeding valve is installed；Pacify in water-flow circuit After installing, opens water supply valve and air bleeding valve, watering cycle circuit are poured water；Each branch circuit parallel connection of fan coil and radiator of user exists Between fan coil and the water-in and water-out manifold of radiator, each branch road is equipped with branch gate valve.
2. The hot water three-way set 2. heat accumulation type household central air conditioner according to claim 1 heats, it is characterised in that：The storage Heat type three-way set, have winter heating, summer air-conditioning and four seasons domestic hot-water supply function, and have a degree of heat accumulation cold-storage work( Energy；Its operational mode is divided into winter, summer and spring and autumn day Three models；

   Winter modes, function：Water heating heats, and domestic hot-water supply；Refrigerant circulation route is when winter modes：Compressor Outlet → prime water- to-water heat exchanger → four-way valve（The interface of third interface → the 4th）The refrigerant passage of → water- to-water heat exchanger（Upper interface → Lower interface）→ throttle valve → outdoor wind heat exchanger（Lower interface → upper interface）→ four-way valve（Second interface → first interface）→ gas The import of liquid/gas separator → compressor；Second, six, seven gate valves of winter modes, water route are closed, and third gate valve is opened, each branch Valve is opened；Heating hot water circulation route be：The water passage of water circulating pump outlet → water- to-water heat exchanger（Lower interface → upper interface）→ Fan coil, the radiator → dual-purpose water tank of third gate valve → user（Or directly）The import of → water circulating pump；The stream of domestic hot-water Journey：Open domestic hot-water's the first gate valve of valve, when being placed with domestic hot-water's heat exchanger tube in boiler, tap water → inlet valve → life Hot water exchanging pipe → domestic hot-water manifold living, for bathing spray etc.；When in boiler without placing domestic hot-water's heat exchanger tube, Tap water → boiler → domestic hot-water manifold, for bathing spray etc.；

   Summer pattern, function：Air conditioner cold water processed while domestic hot-water supply；Refrigerant circulation route is when summer pattern：Compressor Outlet → prime water- to-water heat exchanger → four-way valve（Third interface → second interface）→ outdoor wind heat exchanger（Upper interface → under connect Mouthful）The refrigerant passage of → throttle valve → water- to-water heat exchanger（Lower interface → upper interface）→ four-way valve（Four interfaces → first interface） The import of → gas-liquid separator → compressor；Summer pattern, second, six, seven gate valves and radiator branch valve in water route are closed, the Three gate valves are opened, and coiler fan bypass valve is opened；The circulation route of air conditioner cold water is：The water passage of exit of pump → water- to-water heat exchanger （Lower interface → upper interface）Fan coil → dual-purpose water tank of → third gate valve → user（Or directly）The import of → water circulating pump；It is raw The flow of hot water living is identical as winter modes；

   Spring and autumn day mode, function：Heat pump mode produces domestic hot-water；Refrigerant circulation route is when spring and autumn pattern：Compressor Outlet → prime water- to-water heat exchanger → four-way valve（The interface of third interface → the 4th）The refrigerant passage of → water- to-water heat exchanger（Upper interface → Lower interface）→ throttle valve → outdoor wind heat exchanger（Lower interface → upper interface）→ four-way valve（Second interface → first interface）→ The import of gas-liquid separator → compressor；Spring and autumn day mode, the third in water route, six, seven gate valves are closed, and the second gate valve is opened；Heat Water heat exchange cycle route is：The water passage of exit of pump → water- to-water heat exchanger（Lower interface → upper interface）The gate valve of → boiler → second → dual-purpose water tank（Or directly）The import of → water circulating pump；The flow of domestic hot-water is identical as winter modes.
3. The hot water three-way set 3. the heat accumulation type household central air conditioner according to claim 1 heats, it is characterised in that：Institute The Control protection system stated is equipped with the pressure detector of high pressure and low pressure on compressor air-discharging and suction line, high temperature and low Warm gauge head, in the top water level of boiler and dual-purpose water tank, is equipped with water temperature gauge head on the upper and lower mouthpiece road of water- to-water heat exchanger； Indoor temperature gauge head is installed on fan coil, leaving air temp gauge head is installed in the air outlet of outdoor wind heat exchanger；Control Protection system according to the comparison of the measured value and setting value of each gauge head, will execute compressor, water circulating pump, outdoor wind heat exchanger and The starting and stopping of the wind turbine of fan coil and each gate valve and the switching of four-way valve；

   The control mode of winter modes is：Four-way valve is in the first working condition, when room temperature is less than setting heating temperature, compression Machine, water circulating pump, outdoor wind heat exchanger wind turbine and fan coil fan operation；When room temperature is many less than setting value, to tight When cold setting value, the auxiliary electrical heater of starting fan coil pipe；After room temperature is more than high limit setting value, stop the wind of fan coil Machine, water circulating pump and compressor continue to run with, and continue to the water heat temperature raising of dual-purpose water tank；When the water temperature or refrigeration of dual-purpose water tank Agent high pressure is more than setting value, then compressor is out of service；After room temperature is less than lower limit set value, start cycles water pump and wind first The fan operation of machine coil pipe, the hot water heating stored first with dual-purpose water tank；When the water temperature or room temperature of dual-purpose water tank are less than lower limit When setting value, thermal storage heating underpower, compressor start operation；In the system of not dual-purpose water tank, room temperature is set less than lower limit When definite value, compressor start operation；When executing winter modes, to the water tank temperature of domestic hot-water's heat exchanger without control；

   When executing summer pattern, four-way valve is switched to the second working condition, when room temperature is higher than setting air-conditioner temperature, compressor Operation, the fan operation of water circulating pump and fan coil；After room temperature is less than lower limit set value, stop the wind turbine of fan coil, Water circulating pump and compressor continue to run with, to the water cooling cold-storage of dual-purpose water tank；When the water temperature or refrigerant low pressure of dual-purpose water tank When less than lower limit set value, water circulating pump and compressor are out of service；After room temperature is higher than upper limit set value, water circulating pump and wind The fan operation of machine coil pipe, compressor continue to stop, the chilled water stored using dual-purpose water tank, are supplied to room by fan coil Cold air；Continue to be more than setting value when room temperature, storage cold water restores compressor operating for air-conditioning underpower；In no dual-purpose water tank System, when room temperature continue be more than setting value, directly restore compressor operating；When executing summer pattern, domestic hot-water is changed The water tank temperature of hot device is without control；

   When executing spring and autumn day mode, four-way valve is switched to the first working condition, when the water temperature of boiler is less than setting value lower limit When, starting compressor and water circulating pump, the wind turbine of fan coil stop；When the water temperature of boiler is higher than upper limit set value, compression Machine is out of service；When boiler is placed with domestic hot-water's heat exchanger tube, the open and close of water circulating pump and domestic hot-water's valve link, when When taking domestic hot-water's unlatching domestic hot-water's valve, water circulating pump operation, when closing domestic hot-water's valve, water circulating pump is out of service； When boiler is not placed with domestic hot-water's heat exchanger tube, when using top pressure water-out manners, water circulating pump and domestic hot-water's valve are not Linkage, and when boiler water temperature is less than setting value, start the operation of water circulating pump short time first, the hot water of dual-purpose water tank is set Water circulating pump can be stopped by changing to boiler, be less than domestic hot-water by the T4 monitoring of leaving water temperature probe, T4 temperature under dual-purpose water tank Required temperature, then water circulating pump no longer isolated operation；When boiler top, water temperature T5 and T4 are below setting value, then start compression Machine and water circulating pump execute heat pump type heating water running.
4. The hot water three-way set 4. heat accumulation type household central air conditioner according to claim 1 heats, it is characterised in that：Its mould that defrosts The condition that formula starts is to remove ice-lolly when the leaving air temp for refrigerant low pressure value and fall off rate or wind heat exchanger occur reaches Part setting value；After starting defrosting mode, four-way valve is switched to the second working condition, and refrigerant system executes summer cycle of modes, The state of the open and close of each water route gate valve still maintains the state of winter modes, and the wind turbine of outdoor wind heat exchanger and fan coil stops Only, compressor and water circulating pump continue to run with；When the leaving air temp of outdoor wind heat exchanger exceeds setting value, terminate defrosting, into The fin of row outdoor air cooling heat exchanger dries up process, and the wind turbine of opening chamber's exogenous wind heat exchanger is blown 10-20 seconds, and end entirely defrosted Journey；Four-way valve is switched to the first working condition, and system restores winter modes operation；Defrosting heat, the hot water from dual-purpose water tank Heat, defrosting is fast, effect is good, room temperature is unaffected；When system does not configure dual-purpose water tank, after starting defrosting mode, The second gate valve of circulating-water valve in boiler lower interface connecting tube is opened, the hot water of boiler is allowed to participate in heat supply defrosting.
5. The hot water three-way set 5. heat accumulation type household central air conditioner according to claim 1 heats, it is characterised in that：Before described The heat power of grade water- to-water heat exchanger is the enthalpy of unit time refrigerant flow overheated gas, i.e. the refrigerant ratio of compressor outlet The product of the difference and unit interval refrigerant flow of the refrigerant saturated vapor specific enthalpy of enthalpy and uniform pressure；The biography of water- to-water heat exchanger Thermal power is whole condensation calorific values of the unit time refrigerant flow in pressure at expulsion；Therefore, the heat transfer of prime water- to-water heat exchanger Power is only about the 10-20% of the heat power of water- to-water heat exchanger；The heat transfer coefficient of prime water- to-water heat exchanger should be according to gas stream in pipe The heat transfer coefficient of dynamic and outside tube water free convection form calculus, water- to-water heat exchanger is forced by refrigerant condensation and water based on mobility status Calculate, heat transfer coefficient the former be less than the latter, and heat transfer temperature difference the former be more than the latter, in general, the heat-transfer area of prime water- to-water heat exchanger Small several times of the product than water- to-water heat exchanger；If placing refrigerant superheat gas converting heat pipe simultaneously in boiler and domestic hot-water changing Heat pipe overheats the heat power of domestic hot-water's heat exchanger tube, multiplies by water draw rate and domestic hot-water's disengaging temperature difference and water specific heat Product calculates, if user only installs a spray head, can use 5 liters of calculating of hot water flow per minute, leaching can be selected in heat transfer coefficient The coefficient of heat transfer of bubble coil pipe；Compare from estimated angle, the heat transfer area of domestic hot-water's heat exchanger tube exchanges heat greater than about prime water 4-5 times of the heat transfer area of the heat exchanger tube of device.
6. The hot water three-way set 6. heat accumulation type household central air conditioner according to claim 1 heats, it is characterised in that：The storage Heat type three-way set, including host, boiler, or further include dual-purpose water tank；It is seperated from following in prime water- to-water heat exchanger and boiler When ring heat exchange mode, host includes whole devices of refrigerant-cycle systems：Compressor, outdoor wind heat exchanger, four-way valve, throttling Valve, water- to-water heat exchanger, prime water- to-water heat exchanger, gas-liquid separator, connecting refrigerant lines road further include water circulating pump and control protection System, these accessories are all gathered on host rack pedestal, collectively referred to as host, are completed by factory-assembled；In boiler water When the refrigerant superheat gas converting heat pipe of middle placement, the compressor exhaust pipe terminal of host and with four-way valve third interface connecting tube Terminal is equipped with the first and second angle valve, and manufacture the first two angle valve is closed, and refrigerant is perfused in host refrigerant circulation line；In machine Group erecting bed, the first and second angle valve of the refrigerant line of host are upper and lower with the refrigerant superheat gas converting heat pipe of boiler again Interface connects, and constitutes refrigerant circulation loop, the sky before connecting in refrigerant superheat gas converting heat Guan Xianyong refrigerant blow-off pipes Gas；Boiler and dual-purpose water tank, it is independent to make, it can independently be arranged close to host according to user place situation；Boiler and dual-purpose The waterway connector of water tank, the corresponding waterway connector stayed with host are installed in curstomer's site；Fan coil and radiator can be more It is a, it is installed in parallel；Radiator can be floor radiator or radiator.