CN101078580A - Heat pump hot water machine set of water-containing internal circulation heat-exchanging loop - Google Patents
Heat pump hot water machine set of water-containing internal circulation heat-exchanging loop Download PDFInfo
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Abstract
The invention relates to a heat pump hot water unit with in-water cycling heat exchanging loop, comprising refrigerant loop system, water-refrigerant heat exchanging system, signal collection and circuit control system. It is characterized in that the water-refrigerant heat exchanging system adopts forced internal-cycling loop constituted by water-refrigerant heat exchanger, reflux tube and internal-cycling pump or natural internal-cycling loop which uses diversion sleeve to separate spiral heat exchanger in heat storing water tank and water pre-heating device can be collocated; the refrigerant loop system has single cycling of single air heat source, independent cycling of double heat source with four functions and adopts the structure of three-way electromagnetic valve with pneumatic valve, four-way valve and multiple-path restrictor so as to make switch of all cycles convenient; wind-cold heat exchanger also has water fin tube. The unit efficiency of invention is high and defrosting in winter is complete. Pressure can not be overloaded in summer. Hot water in 55deg.C can be supplied quickly and continuously. Waste heat can be reclaimed or solar hot water can be made use of. It can save energy by 70-85% compared with electric water heater in annual average. The independent cycling unit with double heat source has refrigeration, heating, heating water and heating water with refrigeration functions.
Description
Technical field
The present invention relates to refrigeration air conditioner, Teat pump boiler and field of energy-saving technology.
Background technology
Heat pump air conditioner and Teat pump boiler are thermal source with air or water, produce hot gas or hot water by the mode of compressed refrigerant, have the effect of tangible joint.Present heat-pump water heater is to be single heat source heat pump of thermal source with air or water, and the double heat source heat pump hot water apparatus relates to complicated circulation handoff technique, the hot water heat exchanger high-efficiency compact stablize cheap technology and winter the Defrost technology.
Hot water heat exchanger is the Teat pump boiler key equipment, and the type of flow of water is very big to the performance impact of hot water heat exchanger in the heat exchanger, and then influences the efficient and the safe operation of unit again.The hot water heat exchanger that adopts in the existing Teat pump boiler mainly contains two class forms: a class is a heat exchange water storage mating type, it is that heat exchange coil is immersed in the heat exchanger in the water tank, another kind of is the direct current heat exchange type, as the reverse-flow condensing heat exchanger of bushing type, board-like, shell-tube type.
The hot water heat exchanger of first kind heat exchange water storage mating type, the heat exchange heat storage water tank unites two into one, and is simple in structure, and its shortcoming is: 1. the mobile speed of the water in the heat exchanger is minimum, and exchange capability of heat is very poor; 2. the whole box water of Jia Re storage tank almost heats up simultaneously, and water temperature difference is little up and down for water tank, needs long-time heating just can use hot water; 3. refrigeration work situation instability, especially the later stage is caused superpressure danger easily.
The hot water heat exchanger of the second class direct current heat exchange type all adopts big flow circulation mode of heating at present, and promptly the temperature difference of the turnover saliva of heat exchanger is only 4～5 ℃, therefore is difficult to by once circulating the running water of lower temperature is heated to 55 ℃.For running water being heated to 55 ℃, existing heat-pump hot-water unit is to be warmed up to 50～55 ℃ that are fit to use gradually the water of water storage tank by circulating repeatedly, needs to consume for a long time, and this can influence continous-stable heat supply water.Though big flow repeatedly endless form makes hot water heat exchanger that higher heat exchange property be arranged, but the condensing pressure of kind of refrigeration cycle is too low during corresponding to low water temperature, the supply liquid measure deficiency of evaporimeter, and evaporating pressure is on the low side, refrigeration unit output heating capacity is also very low, and water temperature rises extremely slow.And when water temperature during near 55 ℃, the condensing pressure of cold-producing medium can be too high.This big flow mode is difficult to realize instant heat supply water, just can not directly be heated to 55 ℃ to running water.If running water directly is heated to 55 ℃, heat exchanger sharply reduces by discharge, also causes the reduction of hot water heat exchanger and heat pump efficiency.Use the source pump of the second class water-to-water heat exchanger at present, generally export about 40 ℃ hot water, be difficult to satisfy the requirement of 55 ℃ of domestic hot-water's source pump of production.
In addition, the heat-pump water heater of single air heat source can not be used in refrigeration in summer, and hot and cold amount can not fully utilize.
Moreover, at present the heat pump of air heat source when temperature is low in the winter time efficient very low, even just can not work at-7～-10 ℃, certain areas one are only have in the past few days the weather heat pump can not work must be in addition fuel oil or gas fired-boiler manufacture hot water fully; Perhaps too high because of the summer weather temperature, evaporating pressure is too high and influence source pump and normally move; Also there are problems such as not thorough in the defrost of wind source heat pump water heater.
Present Teat pump boiler shortcoming reclaims the GC-MS of used heat; Have heat pump with solar united usefulness, for example: directly expanding solar heat-pump water heater (ZL 01126634.1) is that solar thermal collector is used as the evaporimeter of heat pump, this device is because the area of solar thermal collector can not be sufficiently large, make the heat outputting water yield even not as good as air source hot pump water heater, main shortcoming is that source pump must be placed in and shines upon the area, and this has limited its and has utilized.
Summary of the invention
In order to overcome the hot water heat exchanger unstable properties of existing Teat pump boiler, can not go out hot water fast, leaving water temperature is difficult to reach more than 55 ℃ or is difficult to stable the maintenance, summer, refrigerant pressure superelevation and winter frost removing did not thoroughly wait not enough, with the imperfection that reclaims used heat and solar energy GC-MS, the present invention proposes a kind of heat-pump hot-water unit that the water internal circulation heat-exchanging loop is arranged, and can overcome above-mentioned deficiency, also can increase refrigerating function and improve device energy conservation efficient in summer.
The technical solution used in the present invention is:
The heat-pump hot-water unit of water internal circulation heat-exchanging loop is arranged, include refrigerant circuit systems, water-cold-producing medium heat-exchange system H, signals collecting and circuit control system; Refrigerant circuit systems mainly comprises compressor 1, water-refrigerant heat exchanger 8, and flow controller J, outdoor air cooling heat exchanger 3, and circulation switching mechanism of cross valve etc. is arranged; Signals collecting and circuit control system mainly include cooling-water temperature sensor 13, water temperature display controller, the temperature sensor of outdoor air cooling heat exchanger, circuit master controller; Refrigerant circuit systems is formed mode by four kinds:
First kind, refrigerant circuit systems is a kind of single air heat source, oppositely defrosting, uses the system of expansion valve flow controller, also includes fluid reservoir 17, device for drying and filtering 18, liquid-sighting glass 19, magnetic valve 30 in the refrigerant loop; The order of connection of refrigerant loop is: the exhaust outlet of compressor, cross valve 2, water-refrigerant heat exchanger 8, fluid reservoir 17, the air inlet of device for drying and filtering 18, liquid-sighting glass 19, magnetic valve 30, expansion valve J, outdoor air cooling heat exchanger 3, cross valve 2, gas-liquid separator 7, compressor;
Or, second kind, refrigerant circuit systems is the system of a kind of single air heat source, reverse defrosting, capillary restrictor, and the order of connection of refrigerant loop is: the air inlet of the exhaust outlet of compressor, cross valve, water-refrigerant heat exchanger 8, capillary restrictor J, outdoor air cooling heat exchanger 3, cross valve, gas-liquid separator 7, compressor;
Or, the third, refrigerant circuit systems is a kind ofly can utilize hydro-thermal source and air heat source respectively, and the system of four kinds of function closed circuits is arranged, and is called for short the double source multiloop loop system;
Or the 4th kind, refrigerant circuit systems is a kind ofly can utilize two place's air heat sources respectively, and the system of four kinds of function closed circuits is arranged, and is called for short two wind regime multiloop loop systems;
It is characterized in that: described water-cold-producing medium heat-exchange system H is the quick hot-water supply system that includes water internal circulation heat-exchanging loop and total water-in and water-out transit system; The water internal circulation heat-exchanging loop is made up of the heat tunnel and the return flow line of band heat exchanger, adopts two kinds of inner loop modes;
First kind is the forced circulation formula of band internal circulation pump 33, the heat tunnel of described band heat exchanger is water-refrigerant heat exchanger 8, and described return flow line is the tube 31 that refluxes, and the backflow wound packages has three water interfaces, divide to be located at its top, bottom and middle and upper part, cooling-water temperature sensor 13 is equipped with on top; Described water-refrigerant heat exchanger 8 lower end water inlets connect one section threeway mixed flow tube 34, and there are two water inlets threeway mixed flow tube lower end, and mixed flow cooling-water temperature sensor 35 is housed in the mixed flow tube; Each knockdown export and the import serial connection sequence of water internal circulation heat-exchanging loop are: the aquaporin of tube bottom delivery port, quantity of circulating water control valve 32, internal circulation pump 33, threeway mixed flow tube, water-refrigerant heat exchanger 8 that refluxes, the water inlet of the tube middle and upper part of refluxing; The into control valve or the adjusting pump 37 of water check valve 36, flow of inlet water are arranged on total water inlet path; Total water-in and water-out path is: the aquaporin of the control valve of water inlet 39, flow of inlet water or adjusting pump 37, water inlet check valve 36, threeway mixed flow tube, water-refrigerant heat exchanger 8, the tube that refluxes, a backflow top delivery port 40; Flow of inlet water is by cooling-water temperature sensor 13 and control program, and the rotating speed of the aperture of the control valve of control flow of inlet water or adjusting pump is regulated;
Perhaps, second kind is natural recirculating type, be made up of fair water sleeves 10, spiral-shaped heat exchange tubular type water-refrigerant heat exchanger 8 that thermal storage water tank 9, separation heat tunnel and return flow line are used, spiral-shaped heat exchanger tube stands within the interior fair water sleeves of water tank, or between water tank wall and the fair water sleeves; The two ends up and down of fair water sleeves respectively and leave general spacing of current or hole between heat exchange thermal storage water tank's top board and the base plate; The interface of the water-in and water-out of total water-in and water-out path is contained in water tank bottom, top respectively;
Also include reverse defrosting check valve P in described first kind of refrigerant circuit systems
1, the import of check valve and flow controller outlet back in parallel is connected with the liquid stream interface of outdoor air cooling heat exchanger 3, is connected with the refrigerant outlet 16 of water-refrigerant heat exchanger after exporting the inlet parallel with receiver;
The refrigerant circuit systems of described the third double source multiloop loop system also includes cold-water heat exchanger 5, defrosting magnetic valve 24; The circulation switching mechanism of system is made up of cross valve 2 and gas circuit triple valve D, and flow controller J is by first, second and third check valve P
1, P
2, P
3With first and second restricting element J
1, J
2And a triple valve 20 constitutes; The refrigerant circulation loop connected mode is: the air inlet of gas circuit triple valve D, normal open outlet and normal outlet Da, the Db of closing are connected with the exhaust outlet of compressor 1, the public high pressure gas import 2a of cross valve 2 and the refrigerant inlet 15 of water-refrigerant heat exchanger 8 respectively with Dc; The high pressure gas normal open interface of cross valve 2, common low pressure gas interface and high pressure gas are often closed interface 2b, 2c and are connected with the air-flow interface of outdoor air cooling heat exchanger 3, the import of gas-liquid separator 7 and the air-flow interface 5b of cold-water heat exchanger 5 respectively with 2d; Three check valve P of flow controller J
1, P
2, P
3Outlet be connected with the import of fluid reservoir 17 jointly, the import of three check valves connects and is connected with the liquid stream interface 3a of outdoor air cooling heat exchanger 3, the liquid stream interface 5a of cold-water heat exchanger 5 and the refrigerant outlet 16 of water-refrigerant heat exchanger 8 respectively; The import of triple valve 20 is connected with the outlet of magnetic valve 30, the import of two restricting element J1, J2 respectively with two outlets; The outlet of two restricting element J1, J2 is connected with the liquid stream interface of outdoor air cooling heat exchanger 3 and the liquid stream interface of cold-water heat exchanger 5 respectively; The import and export of defrosting magnetic valve 24 is connected with the liquid stream interface of outdoor air cooling heat exchanger 3 and the refrigerant outlet of water-refrigerant heat exchanger 8 respectively; The outlet of fluid reservoir 17 and device for drying and filtering 18, liquid-sighting glass 19 and magnetic valve 30 are connected in series; Gas circuit triple valve D is the Pneumatic three-way valve of the auxilliary valve of a kind of electromagnetism, and the common low pressure exhaust outlet of the auxilliary valve Df of its electromagnetism is connected on the compressor air suction pipeline of system with tubule Ls; Triple valve 20 is Pneumatic three-way valves of the auxilliary valve of a kind of electromagnetism, the effective tube connector L of public high pressure admission of the auxilliary valve 20f of its electromagnetism
1Be connected on the compressor exhaust pipe the effective tube connector L of low-pressure admission of the auxilliary valve of electromagnetism
2Be connected on the compressor suction duct;
The refrigerant circuit systems of the 4th kind of two wind regime multiloop loop systems also includes second air cooling heat exchanger 5, and the circulation switching mechanism of system is formed flow controller J by cross valve 2 and gas circuit triple valve D) be by first, second and third check valve P
1, P
2, P
3With first and second restricting element J
1, J
2And a triple valve 20 constitutes; The refrigerant circulation loop connected mode is: the air inlet of gas circuit triple valve D, normal open outlet and normal outlet Da, the Db of closing are connected with the exhaust outlet of compressor 1, the public high pressure gas import 2a of cross valve 2 and the refrigerant inlet 15 of water-refrigerant heat exchanger 8 respectively with Dc; The high pressure gas normal open interface of cross valve 2, common low pressure gas interface and high pressure gas are often closed interface 2b, 2c and are connected with the air-flow interface of outdoor air cooling heat exchanger 3, the import of gas-liquid separator 7 and the air-flow interface of second air cooling heat exchanger 5 respectively with 2d; Three check valve P of flow controller J
1, P
2, P
3Outlet be connected with the import of triple valve 20 jointly, the import of three check valves is connected with the liquid stream interface of outdoor air cooling heat exchanger 3, the liquid stream interface 5a of second air cooling heat exchanger 5 and the refrigerant outlet 16 of water-refrigerant heat exchanger 8 respectively; Two outlets of triple valve 20 respectively with two restricting element J
1, J2 import connect; The outlet of two restricting element J1, J2 is connected with the liquid stream interface 3a of outdoor air cooling heat exchanger 3 and the liquid stream interface 5a of second air cooling heat exchanger 5 respectively; Gas circuit triple valve D is the Pneumatic three-way valve of the auxilliary valve of a kind of electromagnetism, and the common low pressure exhaust outlet of the auxilliary valve Df of its electromagnetism is connected on the compressor air suction pipeline of system with tubule Ls; Triple valve 20 is Pneumatic three-way valves of the auxilliary valve of a kind of electromagnetism, the effective tube connector L of public high pressure admission of the auxilliary valve 20f of its electromagnetism
1Be connected on the compressor exhaust pipe the effective tube connector L of low-pressure admission of the auxilliary valve of electromagnetism
2Be connected on the compressor suction duct;
The flow controller J of described the 4th kind of two wind regime multiloop loop systems can replace with by five check valve P
1, P
2, P
3, P
4, P
5Form with an electric expansion valve J1, the connected mode of flow controller J is: first, second and third check valve P
1, P
2, P
3Outlet be connected with the import of electric expansion valve J1 jointly, the import of these three check valves connects and is connected the outlet of electric expansion valve J1 and fourth, fifth check valve P with the liquid stream interface 3a of outdoor air cooling heat exchanger 3, the liquid stream interface 5a of second air cooling heat exchanger 5 and the refrigerant outlet 16 of water-refrigerant heat exchanger 8 respectively
4, P
5Import connect, the outlet of fourth, fifth check valve is connected with the liquid stream interface 3a of outdoor air cooling heat exchanger 3 and the liquid stream interface 5a of second air cooling heat exchanger 5 respectively; Described compressor replaces with frequency-changeable compressor;
The flow controller J of described the 4th kind of two wind regime multiloop loop systems can also replace with by first, second and third check valve P
1, P
2, P
3Constitute with four sections capillary J1, J2, J3 and J4; The connected mode of flow controller J is: the port in parallel of the import of the first check valve P1 and second, the 4th capillary J2, J4 is connected with the liquid stream interface 3a of outdoor air cooling heat exchanger 3, the port in parallel of the outlet of the second check valve P2 and the first capillary J1 is connected with the liquid stream interface 5a of second air cooling heat exchanger 5, the import of three capillary J3 is connected with the refrigerant outlet 16 of water-refrigerant heat exchanger 8, the outlet of three capillary J3 and second, third check valve P
2, P
3The inlet parallel end connect, the outlet of the 3rd check valve P3 is connected with the import of the 4th capillary J4, the outlet of the first check valve P1 is held with connecing altogether of first and second capillary J1, J2 and is connected; The refrigerant circuit systems of described the 4th kind of two wind regime multiloop loop systems is also added one section one-way flow capillary pipeline of being made up of check valve P4 and capillary Lb between two outlet pipes of gas circuit triple valve D, flow to the pipeline that points to cross valve 2 imports;
The system of described second kind of single air heat source, capillary restrictor, be assembled into two big parts respectively: the off-premises station that water-cold-producing medium heat-exchange system H and remaining parts are formed, split refrigerant inlet 15 and outlet 16 that point is placed on water-cold-producing medium heat-exchange system H, the off-premises station corresponding interface is equipped with two interface valve 15a and 16a, with tube connector corresponding interface is communicated with respectively when the user locates to install; The 4th kind of two wind regime multiloop loop system, be assembled into three-major-items respectively: water-cold-producing medium heat-exchange system H, the off-premises station of forming by indoor set and remaining parts of second air cooling heat exchanger 5, split the gentle stream interface 5b of liquid stream interface 5a that point is placed on second air cooling heat exchanger 5, the refrigerant inlet 15 of water-cold-producing medium heat-exchange system H and outlet 16, the off-premises station corresponding interface is equipped with four interface valve 5c and 5d, 15a and 16a are communicated with corresponding interface with tube connector respectively when the user locates to install;
Described outdoor air cooling heat exchanger 3 can also be arranged the finned tube 3c of the logical non-refrigerant liquid of a current drainage in the inlet side;
Described water-cold-producing medium heat-exchange system can also be installed a water inlet preheater on the water inlet path;
The finned tube (3c) of described outdoor air cooling heat exchanger (3) is and solar heat exchanger, or the loop of water at low temperature-liquid heat exchanger composition.
Because water-cold-producing medium heat-exchange system H that the present invention adopts is divided into water internal circulation heat-exchanging loop and total water-in and water-out transit system, make the water speed that flows of water internal circulation heat-exchanging loop can be different with total water inlet flow velocity, the flow velocity of always intaking only be subjected to the water-in and water-out temperature control.General heat-pump hot-water unit requires leaving water temperature to reach 55 ℃, winter inflow temperature may have only 6～7 ℃, and heat pump is also very low in the efficient in winter, so flow of inlet water can be very little.The present invention adopts into that cold water ejects the hot water mode, and water flow equals flow of inlet water.And the water of the internal circulation heat-exchanging loop speed that flows is not controlled by the speed of flow of inlet water, when the forced circulation mode of internal circulation pump is arranged, be flow and the control of quantity of circulating water control valve by internal circulation pump, about 10 ℃ of the Inlet and outlet water temperature difference of general employing water-refrigerant heat exchanger, leaving water temperature is at 50～55 ℃, total water amount of water internal circulation heat-exchanging loop is about 5～10 minutes heat production water yield of heat pump only, so heat pump can be broken away from low in low water temperature for a long time very soon, condensation temperature is low, the state that power output is low, entered higher COP value and full power running status fast, the hot water of suitable temperature is provided fast continuously.Force internal-circulation type to be suitable for bigger industrialness occasion, generally want supporting jumbo thermal storage water tank with the hot water amount.
Natural recirculating type water internal circulation heat-exchanging loop is to be the moisture in the water storage tank that the thermal treatment zone of spiral heat exchange tube and the no thermal treatment zone are arranged with fair water sleeves, because the water capacity of spiral heat exchange tube in the interlayer district is much smaller than the moisture storage capacity of water tank, a spot of water can be heated rapidly by the spiral heat exchange tube condensing heat exchanger in the interlayer district, density diminishes, under the buoyancy lift effect, rise to tank top automatically, the way in not can with the cold water blending, it is bigger that water outside the interlayer district is not heated density, the water generates pressure reduction that interlayer is inside and outside, continuous decline of cold water and the fair water sleeves below at the bottom of case are flowed in the interlayer, form free convection and circulate; The no circulating pump that the buffer action of this because water conservancy diversion sleeve pipe forms, the free convection circulation that need not the automatic control adjuster just make hot water heat exchanger become contra-flow heat exchanger, and higher heat exchange efficiency is arranged; It is big more to add heat, and circulating water flow is fast more, and automatic regulatory function is arranged; Make the interior water temperature delamination of water tank good, hot water is last, and cold water is following; Can select heat time heating time with hot water amount's size as required, select short heat time heating time after a little while,, therefore have transfiguration to store up and deposit hot water function as long as make the water heating of water tank upper with the hot water amount; Natural recirculating type water internal circulation heat-exchanging loop designs water storage tank and water-refrigerant heat exchanger in one, and compact conformation is suitable for the low profile thermal pump water heating apparatus, be particularly suitable for family and use, but its exchange capability of heat does not have the height of forced circulation.The water tank pressure-bearing of natural recirculating type water internal circulation heat-exchanging loop can utilize the pressure of running water to provide spray required pressure, and is easy.
On total water inlet path, be installed into the heat-pump hot-water unit of water preheater, can be used for reclaiming used heat or utilize solar energy, increase hot water output.The water inlet preheater can be water-water heat exchanger or water-solar heat exchanger; Generation spent hot waters such as the water preheater general using outdoor bathing place of water-water heat exchanger add the water inlet of hot tap-water.The unit of band water preheater is particularly useful in winter, can solve the difficult problem of the low and inflow temperature low-heat aquatic products quantity not sufficient of unit efficiency in winter, improves hot water output greatly.
Heat-pump hot-water unit of the present invention can also be arranged the finned tube 3c of the logical non-refrigerant liquid of a current drainage in the inlet side of outdoor air cooling heat exchanger 3.The purpose that outdoor air cooling heat exchanger 3 adds finned tube 3c mainly is to make the heat-pump hot-water unit can normally move during subzero 7 ℃ to subzero 10 ℃ of winter, spends the time of death, and can raise the efficiency, minimizing frosting situation.The finned tube 3c of non-refrigerant liquid can unite use with solar water heater, perhaps form the low temperature complementary heating circulatory system by water at low temperature-liquid heat exchanger G1 and the antifreeze liquid pump G2 of low temperature and finned tube 3c, the circulatory system is irritated ethylene glycol antifreeze, and water at low temperature-liquid heat exchanger G1 is placed in the G of used heat pond.The used heat water source can be from spent hot water or the GEOTHERMAL WATER or the river lake water of publilc baths.
The heat that finned tube 3c can provide is few, can not independently provide heat pump required whole caloric receptivities, and more heat still will be absorbed heat from outdoor air.Just because of these characteristics of air cooling heat exchanger of the finned tube 3c of subsidiary water flowing, the heat supply that has overcome the heat-pump hot-water unit in independent hydro-thermal source is limited by the heat capacity in hydro-thermal source, also having overcome directly expanding solar heat-pump water heater is subjected to solar water heater to receive the restriction of heat, with overcast and rainy influence, can utilize the hot water defrosting of solar water heater or remedy temperature and cross deficiency when low.
The refrigerant circuit systems of double source of the present invention and two wind regime multiloop loop systems is made of the endless form of four kinds of functional loops circulation switching mechanism and multiloop flow controller: refrigeration, heat supply, freeze and heat water, heat water.Endless form will be described further in conjunction with the accompanying drawings in detail.The heat-pump hot-water unit of multiloop loop system can improve usage ratio of equipment, particularly its refrigeration and heat the function of water, can make the Energy Efficiency Ratio of unit bring up to 6～8, very high economic benefit is arranged, increase the flexibility of equipment simultaneously again, in hot water time spent not, can enter single refrigerating state automatically.
In addition, the bypass of the flow controller of newly establishing that the magnetic valve 24 that defrost uses is housed, defrosting problem in the time of can solving winter heating's water.
Description of drawings
By embodiment, there are the structure and the operation principle of the heat-pump hot-water unit of water internal circulation heat-exchanging loop to further describe below in conjunction with accompanying drawing to of the present invention.
Fig. 1 is the embodiment 1 that the heat-pump hot-water unit of water internal circulation heat-exchanging loop is arranged of the present invention, the principle of compositionality figure of the unit of a kind of single air heat source, oppositely defrosting, use expansion valve flow controller and force water internal circulation heat-exchanging loop.
Fig. 2 is the embodiment 2 that the heat-pump hot-water unit of water internal circulation heat-exchanging loop is arranged of the present invention, the principle of compositionality figure of the unit of a kind of single air heat source, oppositely defrosting, use capillary restrictor and self-circulation type water internal circulation heat-exchanging loop.
Fig. 3 is the embodiment 3 that the heat-pump hot-water unit of water internal circulation heat-exchanging loop is arranged of the present invention, a kind ofly can utilize hydro-thermal source and air heat source respectively, and the principle of compositionality figure of the unit of four kinds of function closed circuits and force water internal circulation heat-exchanging loop is arranged.
Fig. 4 is the embodiment 4 that the heat-pump hot-water unit of water internal circulation heat-exchanging loop is arranged of the present invention, a kind ofly can utilize two place's air heat sources respectively, and the principle of compositionality figure of the unit of four kinds of function closed circuits and self-circulation type water internal circulation heat-exchanging loop is arranged.
Fig. 5 is the embodiment 5 that the heat-pump hot-water unit of water internal circulation heat-exchanging loop is arranged of the present invention, a kind ofly can utilize two place's air heat sources respectively, four kinds of function closed circuits are arranged, adopt the principle of compositionality figure of the unit of electric expansion valve and self-circulation type water internal circulation heat-exchanging loop.
Fig. 6 is the embodiment 6 that the heat-pump hot-water unit of water internal circulation heat-exchanging loop is arranged of the present invention, a kind ofly can utilize two place's air heat sources respectively, four kinds of function closed circuits are arranged, adopt the principle of compositionality figure of the unit of four sections capillary restrictors and self-circulation type water internal circulation heat-exchanging loop.
Fig. 7 is the embodiment 7 that the heat-pump hot-water unit of water internal circulation heat-exchanging loop is arranged of the present invention, a kind of single air heat source, and the force water internal circulation heat-exchanging loop is brought the principle of compositionality figure of the unit of water preheater into.
Fig. 8 is the embodiment 8 that the heat-pump hot-water unit of water internal circulation heat-exchanging loop is arranged of the present invention, and a kind of single air heat source, force water internal circulation heat-exchanging loop are brought water preheater into, the principle of compositionality figure of the unit of the finned tube of the subsidiary water flowing of outdoor air cooling heat exchanger.
Fig. 9 is the embodiment 9 that the heat-pump hot-water unit of water internal circulation heat-exchanging loop is arranged of the present invention, a kind of single air heat source, the force water internal circulation heat-exchanging loop, the principle of compositionality figure of the unit of the finned tube of the subsidiary water flowing of outdoor air cooling heat exchanger and the coupling of solar water heater.
Figure 10 is a kind of structural representation that the embodiment of the invention 2,4,5 and the 6 a kind of helix tubes that use place the self-circulation type water internal circulation heat-exchanging loop system in the fair water sleeves.
Figure 11 is a kind of structural representation that a kind of helix tubes that the embodiment of the invention 2,4,5 and 6 is used place the self-circulation type water internal circulation heat-exchanging loop system between the annulus of fair water sleeves and water storage tank wall.
Figure 12 is the water tank cross-sectional view of Figure 11.
The specific embodiment
The parts in the refrigerant loop of unit and the order of connection thereof, also the cold-producing medium circular order is during instant heating heat pump heating water: the exhaust outlet of compressor, cross valve 2, water-refrigerant heat exchanger 8, fluid reservoir 17, the air inlet of device for drying and filtering 18, liquid-sighting glass 19, magnetic valve 30, expansion valve J, outdoor air cooling heat exchanger 3, cross valve 2, gas-liquid separator 7, compressor; Outdoor air cooling heat exchanger 3 has fan 4, and temperature sensor 21 is housed; Check valve P oppositely defrosts
1The outlet parallel connection of import and expansion valve J after be connected with the liquid stream interface of outdoor air cooling heat exchanger 3, be connected with the refrigerant outlet 16 of water-refrigerant heat exchanger after the inlet parallel of outlet and receiver.Oppositely during defrosting, the cross valve commutation, cross valve interface 2a and 2d communicate, and 2b and 2c communicate, and compressor air-discharging is through cross valve 2a and 2d, outdoor air cooling heat exchanger, check valve P oppositely defrosts
1, water-refrigerant heat exchanger 8, cross valve 2b and 2c, gas-liquid separator 7, compressor.Compressor air-discharging makes the frosting fusing of outdoor air cooling heat exchanger.
The water of unit-cold-producing medium heat-exchange system H is the forced circulation formula, sees in the dashed rectangle H; The water internal circulation heat-exchanging loop is made of water-refrigerant heat exchanger 8, the tube 31 that refluxes, quantity of circulating water control valve 32, internal circulation pump 33,34 series connection of threeway mixed flow tube; The flow process of water internal circulation heat-exchanging is: aquaporin, the backflow tube 31 of reflux tube bottom delivery port, quantity of circulating water control valve 32, internal circulation pump 33, threeway mixed flow tube, water-refrigerant heat exchanger 8; Total water-in and water-out path of unit is: running water is from water inlet 38, the control valve of flow of inlet water or regulate pump 37, water inlet check valve 36, mixed flow tube 34, the aquaporin of water-refrigerant heat exchanger 8, the tube middle and upper part import 12 that refluxes, total delivery port 40 outputs from the top of the tube that refluxes; By cooling-water temperature sensor 13 and control program, regulate the control valve of flow of inlet water or the rotating speed of adjusting pump 37, regulate flow of inlet water, guarantee that leaving water temperature reaches requirement.The inflow temperature that mixed flow cooling-water temperature sensor 35 is used to indicate water-refrigerant heat exchanger is housed in the mixed flow tube, and regulates interior quantity of circulating water by the quantity of circulating water control valve according to this temperature.
The water of embodiment 2-cold-producing medium heat-exchange system H is a natural recirculating type, see in the dashed rectangle H, be surrounded by fair water sleeves 10, the spiral-shaped heat exchange tubular type water-refrigerant heat exchanger 8 used in insulation cladding thermal storage water tank 9, separation heat tunnel and return flow line by the outside and form, spiral-shaped heat exchanger tube stands within the interior fair water sleeves of water tank; The two ends up and down of fair water sleeves respectively and leave 5 centimetres of the general spacings of current and 3 centimetres between heat exchange thermal storage water tank's top board and the base plate; Total water inlet and the interface of water outlet 11 and 12 are contained in water tank bottom and top respectively; Water inlet pipe is equipped with the control valve 37 of inflow, adopts cold water to eject hot water mode heat supply water; Capillary has the reverse flow function, does not establish the defrosting check valve.This embodiment is applicable to the small-sized household heat pump water-heating machine.The water pipe of considering water in winter-cold-producing medium heat-exchange system does not have the danger of freezing during water, the embodiment type is two split type, water-cold-producing medium heat-exchange system H in the frame of broken lines H is an one, the off-premises station that remaining parts is formed is another body, split refrigerant inlet 15 and outlet 16 that point is placed on water-refrigerant heat exchanger, two corresponding interfaces of off-premises station are equipped with interface valve 15a and 16a respectively, use tube connector corresponding interface 15 and 15a when the user locates to install respectively, 16 and 16a be communicated with.Water temperature display controller 14 is contained on the water storage tank shell of water-cold-producing medium heat-exchange system H.
As shown in Figure 3, the refrigerant circuit systems of the third double source multiloop loop system includes compressor 1, gas circuit triple valve D, cross valve 2, outdoor air cooling heat exchanger 3, cold-water heat exchanger 5, water-refrigerant heat exchanger 8, flow controller J, defrosting magnetic valve 24; The circulation switching mechanism of system is made up of cross valve 2 and gas circuit triple valve D, and flow controller J is by first, second and third check valve P
1, P
2, P
3With first and second restricting element J
1, J
2And a triple valve 20 constitutes; The refrigerant circulation loop connected mode is: the air inlet of gas circuit triple valve D, normal open outlet and normal outlet Da, the Db of closing are connected with the exhaust outlet of compressor 1, the public high pressure gas import 2a of cross valve 2 and the refrigerant inlet 15 of water-refrigerant heat exchanger 8 respectively with Dc; The high pressure gas normal open interface of cross valve 2, common low pressure gas interface and high pressure gas are often closed interface 2b, 2c and are connected with the air-flow interface of outdoor air cooling heat exchanger 3, the import of gas-liquid separator 7 and the air-flow interface 5b of cold-water heat exchanger 5 respectively with 2d; Three check valve P of flow controller J
1, P
2, P
3Outlet be connected with the import of fluid reservoir 17 jointly, the import of three check valves connects and is connected with the liquid stream interface 3a of outdoor air cooling heat exchanger 3, the liquid stream interface 5a of cold-water heat exchanger 5 and the refrigerant outlet 16 of water-refrigerant heat exchanger 8 respectively; The import of triple valve 20 is connected with the outlet of magnetic valve 30, the import of two restricting element J1, J2 respectively with two outlets; The outlet of two restricting element J1, J2 is connected with the liquid stream interface of outdoor air cooling heat exchanger 3 and the liquid stream interface of cold-water heat exchanger 5 respectively; The import and export of defrosting magnetic valve 24 is connected with the liquid stream interface of outdoor air cooling heat exchanger 3 and the refrigerant outlet of water-refrigerant heat exchanger 8 respectively; The outlet of fluid reservoir 17 and device for drying and filtering 18, liquid-sighting glass 19 and magnetic valve 30 are connected in series; Gas circuit triple valve D is the Pneumatic three-way valve of the auxilliary valve of a kind of electromagnetism, and the common low pressure exhaust outlet of the auxilliary valve Df of its electromagnetism is connected on the compressor air suction pipeline of system with tubule Ls; Triple valve 20 is Pneumatic three-way valves of the auxilliary valve of a kind of electromagnetism, the effective tube connector L of public high pressure admission of the auxilliary valve 20f of its electromagnetism
1Be connected on the compressor exhaust pipe the effective tube connector L of low-pressure admission of the auxilliary valve of electromagnetism
2Be connected on the compressor suction duct; The restricting element heating power expansion valve;
With arrow " → " expression refrigerant flow direction, illustrate that the cold-producing medium circulation of four kinds of functions is as follows respectively:
Kind of refrigeration cycle: compressor 1 → gas circuit triple valve D (Da → Db) → cross valve 2 (2a → 2b) → outdoor air cooling heat exchanger 3 → check valve P1 → receiver 17 → drier 18 → liquid-sighting glass 19 → magnetic valve 30 → triple valve 20 → heating power expansion valve J2 → cold-water heat exchanger 5 → cross valve 2 (2d → 2c) → gas-liquid separator 7 → compressor 1;
The heat supply circulation: compressor 1 → gas circuit triple valve D (Da → Db) → cross valve 2 (2a → 2d) → cold-water heat exchanger 5 → check valve P2 → receiver 17 → drier 18 → liquid-sighting glass 19 → magnetic valve 30 → triple valve 20 → heating power expansion valve J1 → outdoor air cooling heat exchanger 3 → cross valve 2 (2b → 2c) → gas-liquid separator 7 → compressor 1;
Refrigeration also heats the water circulation: and compressor 1 → gas circuit triple valve D (Da → Dc) → water-refrigerant heat exchanger 8 → check valve P3 → receiver 17 → drier 18 → liquid-sighting glass 19 → magnetic valve 30 → triple valve 20 → heating power expansion valve J1 → cold-water heat exchanger 5 → cross valve 2 (2d → 2c) → gas-liquid separator 7 → compressor 1;
Heat the water circulation: compressor 1 → gas circuit triple valve D (Da → Dc) → water-refrigerant heat exchanger 8 → check valve P3 → receiver 17 → drier 18 → liquid-sighting glass 19 → magnetic valve 30 → triple valve 20 → heating power expansion valve J1 → outdoor air cooling heat exchanger 3 → cross valve 2 (2b → 2c) → gas-liquid separator 7 → compressor 1;
Heat the defrost cycle of water circulation time: compressor 1 → gas circuit triple valve D (Da → Dc) → water-refrigerant heat exchanger 8 → defrosting magnetic valve 24 → outdoor air cooling heat exchanger 3 → cross valve 2 (2b → 2c) → gas-liquid separator 7 → compressor 1;
Heat supply circulation time defrost cycle: compressor 1 → gas circuit triple valve D (Da → Db) → cross valve 2 (2a → 2b) → outdoor air cooling heat exchanger 3 → check valve P1 → receiver 17 → drier 18 → liquid-sighting glass 19 → magnetic valve 30 → triple valve 20 → heating power expansion valve J2 → cold-water heat exchanger 5 → cross valve 2 (2d → 2c) → gas-liquid separator 7 → compressor 1;
The water of unit-cold-producing medium heat-exchange system H is the forced circulation formula identical with embodiment 1, and the flow process of its water internal circulation heat-exchanging loop is: aquaporin → backflows of the tube 31 → quantity of circulating water control valve 32 → internal circulation pump 33 → threeway mixed flow tube → water-refrigerant heat exchanger 8 that refluxes tins 31; Total water-in and water-out stream of unit is: running water from the control valve of water inlet 38 → flow of inlet water or regulate pump 37 → water inlet check valve 36 → advance mixed flow tube 34 → water-refrigerant heat exchanger 8 aquaporin → backflows tube → always delivery port 40 is exported;
The adjusting of flow of inlet water: by cooling-water temperature sensor 13 and control program, reach requirement, regulate the control valve of flow of inlet water or the rotating speed of adjusting pump 37 and regulate flow of inlet water to guarantee leaving water temperature;
Quantity of circulating water is regulated: measuring water temperature by mixed flow cooling-water temperature sensor 35, is principle with running water that guarantees to come in and the requirement that the mixed water temperature of recirculation water satisfies the inflow temperature of water-refrigerant heat exchanger 8, regulates interior quantity of circulating water with control valve 32.
Embodiment 4 with embodiment 3 difference in refrigerant loop is, replaced the cold-water heat exchanger 5 of embodiment 3 with second air cooling heat exchanger 5, replace the heating power expansion valve flow controller of embodiment 3 with capillary restrictor, and saved accessories such as receiver, be used for lower-powered unit.The flow controller of embodiment 4 is formed and connected mode is: three check valve P of flow controller J
1, P
2, P
3Outlet be connected with the import of triple valve 20 jointly, the import of three check valves is connected with the liquid stream interface 3a of outdoor air cooling heat exchanger 3, the liquid stream interface 5a of second air cooling heat exchanger 5 and the refrigerant outlet 16 of water-refrigerant heat exchanger 8 respectively; Two outlets of triple valve 20 are connected with the import of two restricting element J1, J2 respectively; The outlet of two restricting element J1, J2 is connected with the liquid stream interface 3a of outdoor air cooling heat exchanger 3 and the liquid stream interface 5a of second air cooling heat exchanger 5 respectively.Triple valve 20 is Pneumatic three-way valves of the auxilliary valve of a kind of electromagnetism, the effective tube connector L of public high pressure admission of the auxilliary valve 20f of its electromagnetism
1Be connected on the compressor exhaust pipe the effective tube connector L of low-pressure admission of the auxilliary valve of electromagnetism
2Be connected on the compressor suction duct.
Because two place's air heat sources divide in indoor and outdoor, and the danger of not freezing during water in winter for the water route of avoiding water-cold-producing medium heat-exchange system, use the heat pump water-heating machine group of two place's air heat sources to be assembled into three-major-items respectively: water-cold-producing medium heat-exchange system H, the off-premises station of forming by the indoor set of second air cooling heat exchanger 5 and remaining parts, split the gentle stream interface 5b of liquid stream interface 5a that point is placed on second air cooling heat exchanger 5, the refrigerant inlet 15 of water-cold-producing medium heat-exchange system H and outlet 16, the off-premises station corresponding interface is equipped with four interface valve 5c and 5d, 15a and 16a are communicated with corresponding interface with tube connector respectively when the user locates to install.
The cold-producing medium circulation of four kinds of functions of embodiment 4 is as follows respectively:
Kind of refrigeration cycle: compressor 1 → gas circuit triple valve D (Da → Db) → cross valve 2 (2a → 2b) → outdoor air cooling heat exchanger 3 → check valve P1 → triple valve 20 → throttle capillary tube J2 → second air cooling heat exchanger, 5 → cross valve 2 (2d → 2c) → gas-liquid separator 7 → compressor 1;
Heat supply circulation: compressor 1 → gas circuit triple valve D (Da → Db) → cross valve 2 (the air cooling heat exchanger 5 → check valve P2 → triple valve 20 → throttle capillary tube J1 → outdoor air cooling heat exchanger 3 → cross valve 2 of 2a → 2d) → second (2b → 2c) → gas-liquid separator 7 → compressor 1;
Refrigeration also heats the water circulation: and compressor 1 → gas circuit triple valve D (Da → Dc) → water-refrigerant heat exchanger 8 → check valve P3 → triple valve 20 → throttle capillary tube J1 → second air cooling heat exchanger, 5 → cross valve 2 (2d → 2c) → gas-liquid separator 7 → compressor 1;
Heat the water circulation: compressor 1 → gas circuit triple valve D (Da → Dc) → water-refrigerant heat exchanger 8 → check valve P3 → triple valve 20 → throttle capillary tube J1 → outdoor air cooling heat exchanger 3 → cross valve 2 (2b → 2c) → gas-liquid separator 7 → compressor 1;
Heating the water circulation with heat supply circulation time defrost cycle all is: and compressor 1 → gas circuit triple valve D (Da → Db) → cross valve 2 (2a → 2b) → outdoor air cooling heat exchanger 3 → check valve P1 → triple valve 20 → throttle capillary tube J2 → second air cooling heat exchanger, 5 → cross valve 2 (2d → 2c) → gas-liquid separator 7 → compressor.
Embodiment 5, Fig. 5 is the embodiment 5 that the heat-pump hot-water unit of water internal circulation heat-exchanging loop is arranged of the present invention, a kind ofly can utilize two place's air heat sources respectively, four kinds of function closed circuits are arranged, adopt the principle of compositionality figure of the unit of electric expansion valve and self-circulation type water internal circulation heat-exchanging loop.
Embodiment 5 is that with the difference of embodiment 4 flow controller J adopts electric expansion valve, its flow controller J be by five check valves first, second, third and fourth, five check valve P
1, P
2, P
3, P
4, P
5Form with an electric expansion valve J1, the connected mode of flow controller J is: first, two, the outlet of three check valves is connected with the import of electric expansion valve J1 jointly, the import of these three check valves connects respectively the liquid stream interface 3a with outdoor air cooling heat exchanger 3, the liquid stream interface 5a of second air cooling heat exchanger 5 and the refrigerant outlet 16 of water-refrigerant heat exchanger 8 are connected, the outlet of electric expansion valve J1 and the 4th, the import of five check valves connects, and the 4th, the outlet of five check valves is connected with the liquid stream interface 3a of outdoor air cooling heat exchanger 3 and the liquid stream interface 5a of second air cooling heat exchanger 5 respectively.The cold-producing medium of four kinds of function circulations of embodiment 5 all passes through electric expansion valve J1 throttling.Compressor adopts inverter compressor.
Embodiment 6 is that with the difference of embodiment 4,5 flow controller J is by first, second and third check valve P
1, P
2, P
3Constitute with four sections capillary J1, J2, J3 and J4; The connected mode of flow controller J is: the port in parallel of the import of the first check valve P1 and second, the 4th capillary J2, J4 is connected with the liquid stream interface 3a of outdoor air cooling heat exchanger 3, the port in parallel of the outlet of the second check valve P2 and the first capillary J1 is connected with the liquid stream interface 5a of second air cooling heat exchanger 5, the import of three capillary J3 is connected with the refrigerant outlet 16 of water-refrigerant heat exchanger 8, the outlet of three capillary J3 and second, third check valve P
2, P
3The inlet parallel end connect, the outlet of the 3rd check valve P3 is connected with the import of the 4th capillary J4, the outlet of the first check valve P1 is held with connecing altogether of first and second capillary J1, J2 and is connected; In addition, also between two outlet pipes of the gas circuit triple valve D of refrigerant circuit systems, add one section one-way flow capillary pipeline of forming by check valve P4 and capillary Lb, flow to the pipeline that points to cross valve 2 imports.
The cold-producing medium circulation of four kinds of functions of embodiment 6 is as follows respectively:
Kind of refrigeration cycle: compressor 1 → gas circuit triple valve D (Da → Db) → cross valve 2 (2a → 2b) → outdoor air cooling heat exchanger 3 → the first check valve P1 → first capillary J1 → second air cooling heat exchanger, 5 → cross valve 2 (2d → 2c) → gas-liquid separator 7 → compressor 1;
Heat supply circulation: compressor 1 → gas circuit triple valve D (Da → Db) → cross valve 2 (air cooling heat exchanger 5 → the first capillary J1 → second capillary J2 → outdoor air cooling heat exchanger 3 → cross valve 2 of 2a → 2d) → second (2b → 2c) → gas-liquid separator 7 → compressor 1;
Refrigeration also heats the water circulation: and compressor 1 → gas circuit triple valve D (Da → Dc) → water-refrigerant heat exchanger 8 → the three capillary J3 → second check valve P2 → second air cooling heat exchanger, 5 → cross valve 2 (2d → 2c) → gas-liquid separator 7 → compressor 1;
Heat the water circulation: compressor 1 → gas circuit triple valve D (Da → Dc) → water-refrigerant heat exchanger 8 → the three capillary J3 → the 3rd check valve P3 → the 4th capillary J4 → outdoor air cooling heat exchanger 3 → cross valve 2 (2b → 2c) → gas-liquid separator 7 → compressor 1;
Heating the water circulation with heat supply circulation time defrost cycle all is: and compressor 1 → gas circuit triple valve D (Da → Db) → cross valve 2 (2a → 2b) → outdoor air cooling heat exchanger 3 → the first check valve P1 → first capillary J2 → second air cooling heat exchanger, 5 → cross valve 2 (2d → 2c) → gas-liquid separator 7 → compressor.
In refrigerant circulation loop, add one section one-way flow capillary pipeline of forming by check valve P4 and capillary Lb, about 2 millimeters of the interior diameter of capillary Lb, can adopt throttle capillary tube, its effect is to allow the gas of trace enter idle heat exchanger, suitably improve its pressure, the heat exchanger that the refrigerant liquid that is stored in this heat exchanger is extruded into as evaporator operation goes, and keeps the loop refrigerant flow stable.
The difference of embodiment 7 and embodiment 1 is also to have added water preheater S on the water inlet manifold road of described water-cold-producing medium heat-exchange system H; In the heat exchanger tube of running water elder generation through water preheater S, enter the aquaporin of water-refrigerant heat exchanger again.The spent hot water of shower etc. flows through outside the water preheater S heat exchanger tube, and Sa advances from spent hot water's import, and outlet Sb goes out.
The left side of A-A dotted line is user's big thermal storage water tank system among Fig. 7, comprises big thermal storage water tank 50, upper and lower dipperstick 51,52, big thermal storage water tank's cooling-water temperature sensor 53, discharging valve 54, water-circulating pump 55, the valve 56 of heat supply water pipe, air bleeding valve 57; User's the big thermal storage water tank system and the connected mode of heat-pump hot-water unit of the present invention be, the outlet 41 of water-circulating pump 55 is connected with the water inlet 39 of mixed flow tube, and big thermal storage water tank's 50 water inlet is connected with the delivery port at a top of refluxing; Only water-circulating pump 55 just starts when big thermal storage water tank's water temperature is lower than set temperature value.
Adopt anti-icing fluid round-robin method between spent hot water and finned tube, when winter, temperature was at-6～-10 ℃, anti-icing fluid can drop to-5 ℃ from 7～8 ℃, makes the cold wind temperature that enters improve about 5 ℃, can effectively improve heat pump efficiency and guarantee the normal operation of heat pump.The spent hot water also can adopt GEOTHERMAL WATER or deep soil heat exchange water.
Figure 10 is a kind of structural representation that the embodiment of the invention 2,4,5 and the 6 a kind of helix tubes that use place the self-circulation type water internal circulation heat-exchanging loop system in the fair water sleeves.Among the figure, thermal storage water tank 9 outsides are surrounded by insulation cladding, water-refrigerant heat exchanger 8 for spiral-shaped, stand within the interior fair water sleeves 10 of water tank; Fair water sleeves fixedly stands in the water tank with support 10a; The interface 11 and 12 of water inlet and water outlet is contained in water tank bottom and top respectively; Cooling-water temperature sensor 13 is contained in about 3/4 eminence of water tank, and water temperature display controller 14 is positioned on the water storage tank shell, and the refrigerant inlet 15 and the outlet 16 of water-refrigerant heat exchanger 8 are stayed outside the water tank.
Figure 11 is a kind of structural representation that a kind of spiral heat exchange tubes that the embodiment of the invention 2,4,5 and 6 is used place the self-circulation type water internal circulation heat-exchanging loop system between the annulus of fair water sleeves and water storage tank wall.Functions of components shown in each symbol of Figure 11 is all with shown in Figure 10 identical, but spiral heat exchange tube shown in Figure 11 is to place between the annulus of fair water sleeves and water storage tank wall, arranges along circular water tank wall, and many helix tubes are staggered in twos.
Figure 12 is the water tank cross-sectional view of Figure 11.
Claims (10)
1, the heat-pump hot-water unit of water internal circulation heat-exchanging loop is arranged, include refrigerant circuit systems, water-cold-producing medium heat-exchange system (H), signals collecting and circuit control system; Refrigerant circuit systems mainly comprises compressor (1), water-refrigerant heat exchanger (8), and flow controller (J), outdoor air cooling heat exchanger (3), and circulation switching mechanism of cross valve etc. is arranged; Signals collecting and circuit control system mainly include cooling-water temperature sensor, water temperature display controller, the temperature sensor of outdoor air cooling heat exchanger, circuit master controller; Refrigerant circuit systems is formed mode by four kinds;
First kind, refrigerant circuit systems is a kind of single air heat source, oppositely defrosting, uses the system of expansion valve flow controller, also includes fluid reservoir (17), device for drying and filtering (18), liquid-sighting glass (19), magnetic valve (30) in the refrigerant loop; The order of connection of refrigerant loop is: the exhaust outlet of compressor, cross valve, water-refrigerant heat exchanger (8), fluid reservoir (17), the air inlet of device for drying and filtering (18), liquid-sighting glass (19), magnetic valve (30), expansion valve (J), outdoor air cooling heat exchanger (3), cross valve, gas-liquid separator (7), compressor;
Or, second kind, refrigerant circuit systems is the system of a kind of single air heat source, reverse defrosting, capillary restrictor, and the order of connection of refrigerant loop is: the air inlet of the exhaust outlet of compressor, cross valve, water-refrigerant heat exchanger (8), capillary restrictor (J), outdoor air cooling heat exchanger (3), cross valve, gas-liquid separator (7), compressor;
Or, the third, refrigerant circuit systems is a kind ofly can utilize hydro-thermal source and air heat source respectively, and the system of four kinds of function closed circuits is arranged, and is called for short the double source multiloop loop system;
Or the 4th kind, refrigerant circuit systems is a kind ofly can utilize two place's air heat sources respectively, and the system of four kinds of function closed circuits is arranged, and is called for short two wind regime multiloop loop systems;
It is characterized in that: described water-cold-producing medium heat-exchange system (H) is the quick hot-water supply system that includes water internal circulation heat-exchanging loop and total water-in and water-out path; The water internal circulation heat-exchanging loop is made up of the heat tunnel and the return flow line of band heat exchanger, adopts two kinds of inner loop modes;
First kind is the forced circulation formula of band internal circulation pump (33), the heat tunnel of described band heat exchanger is water-refrigerant heat exchanger (8), described return flow line is the tube (31) that refluxes, the backflow wound packages has three water interfaces, divide to be located at its top, bottom and middle and upper part, cooling-water temperature sensor (13) is equipped with on top; Described water-refrigerant heat exchanger (8) lower end water inlet connects one section threeway mixed flow tube (34), and there are two water inlets threeway mixed flow tube lower end, and mixed flow cooling-water temperature sensor (35) is housed in the mixed flow tube; Each knockdown export and the import serial connection sequence of water internal circulation heat-exchanging loop are: the aquaporin of tube bottom delivery port, quantity of circulating water control valve (32), internal circulation pump (33), threeway mixed flow tube (31), water-refrigerant heat exchanger (8) that refluxes, the water inlet of the tube middle and upper part of refluxing; The into control valve or the adjusting pump (37) of water check valve (36), flow of inlet water are arranged on total water inlet path; Total water-in and water-out path is: the aquaporin of the control valve of water inlet (38), flow of inlet water or adjusting pump (37), water inlet check valve (36), threeway mixed flow tube (31), water refrigerant heat exchanger (8), the tube that refluxes, a backflow top delivery port (40); Flow of inlet water is by cooling-water temperature sensor (13) and control program, and the rotating speed of the aperture of the control valve of control flow of inlet water or adjusting pump is regulated;
Perhaps, second kind is natural recirculating type, form by fair water sleeves (10), spiral-shaped heat exchange tubular type water-refrigerant heat exchanger (8) that thermal storage water tank (9), separation heat tunnel and return flow line are used, spiral-shaped heat exchanger tube stands within the interior fair water sleeves of water tank, or between water tank wall and the fair water sleeves; The two ends up and down of fair water sleeves respectively and leave general spacing of current or hole between heat exchange thermal storage water tank's top board and the base plate; The interface of the water-in and water-out of total water-in and water-out path is contained in water tank bottom, top respectively.
2, the heat-pump hot-water unit that the water internal circulation heat-exchanging loop is arranged according to claim 1, it is characterized in that: reverse defrosting check valve (P1) also is housed in first kind the refrigerant loop, the import of check valve and flow controller outlet back in parallel is connected with the liquid stream interface of outdoor air cooling heat exchanger 3, is connected with the refrigerant outlet (16) of water-refrigerant heat exchanger after exporting the inlet parallel with receiver.
3, the heat-pump hot-water unit that the water internal circulation heat-exchanging loop is arranged according to claim 1, it is characterized in that: the refrigerant circuit systems of the third double source multiloop loop system also includes cold-water heat exchanger (5), defrosting magnetic valve (24); The circulation switching mechanism of system is made up of cross valve (2) and gas circuit triple valve (D), and flow controller (J) is by first, second and third check valve (P
1, P
2, P
3) and first and second restricting element (J
1, J
2) and a triple valve (20) formation; The refrigerant circulation loop connected mode is: the air inlet of gas circuit triple valve (D), normal open outlet are connected with the exhaust outlet of compressor (1), the public high pressure gas import (2a) of cross valve (2) and the refrigerant inlet (15) of water-refrigerant heat exchanger (8) respectively with normal pass outlet (Da, Db and Dc); The high pressure gas normal open interface of cross valve (2), common low pressure gas interface and high pressure gas are often closed interface (2b, 2c and 2d) and are connected with the air-flow interface of outdoor air cooling heat exchanger (3), the import of gas-liquid separator (7) and the air-flow interface (5b) of cold-water heat exchanger (5) respectively; Three check valve (P of flow controller (J)
1, P
2, P
3) outlet be connected with the import of fluid reservoir (17) jointly, the import of three check valves connects and is connected with the liquid stream interface (3a) of outdoor air cooling heat exchanger (3), the liquid stream interface (5a) of cold-water heat exchanger (5) and the refrigerant outlet (16) of water-refrigerant heat exchanger (8) respectively; The import of triple valve (20) is connected with the outlet of magnetic valve (30), the import of two restricting elements (J1, J2) respectively with two outlets; The outlet of two restricting elements (J1, J2) is connected with the liquid stream interface of outdoor air cooling heat exchanger (3) and the liquid stream interface of cold-water heat exchanger (5) respectively; The import and export of defrosting magnetic valve (24) is connected with the liquid stream interface of outdoor air cooling heat exchanger (3) and the refrigerant outlet of water-refrigerant heat exchanger (8) respectively; The outlet of fluid reservoir (17) and device for drying and filtering (18), liquid-sighting glass (19) and magnetic valve (30) are connected in series; Gas circuit triple valve (D) is the Pneumatic three-way valve of the auxilliary valve of a kind of electromagnetism, and the common low pressure exhaust outlet that its electromagnetism is assisted valve (Df) is connected on the compressor air suction pipeline of system with tubule (Ls); Triple valve (20) is the Pneumatic three-way valve of the auxilliary valve of a kind of electromagnetism, and its electromagnetism is assisted the effective tube connector (L of public high pressure admission of valve (20f)
1) be connected on the compressor exhaust pipe the effective tube connector (L of low-pressure admission of the auxilliary valve of electromagnetism
2) be connected on the compressor suction duct.
4, the heat-pump hot-water unit that the water internal circulation heat-exchanging loop is arranged according to claim 1, it is characterized in that: the refrigerant circuit systems of the 4th kind of two wind regime multiloop loop systems also includes second air cooling heat exchanger (5), the circulation switching mechanism of system is made up of cross valve (2) and gas circuit triple valve (D), and flow controller (J) is by first, second and third check valve (P
1, P
2, P
3) and first and second restricting element (J
1, J
2) and a triple valve (20) formation; The refrigerant circulation loop connected mode is: the air inlet of gas circuit triple valve (D), normal open outlet are connected with the exhaust outlet of compressor (1), the public high pressure gas import (2a) of cross valve (2) and the refrigerant inlet (15) of water-refrigerant heat exchanger (8) respectively with normal pass outlet (Da, Db and Dc); The high pressure gas normal open interface of cross valve (2), common low pressure gas interface and high pressure gas are often closed interface (2b, 2c and 2d) and are connected with the air-flow interface of outdoor air cooling heat exchanger (3), the import of gas-liquid separator (7) and the air-flow interface of second air cooling heat exchanger (5) respectively; Three check valve (P of flow controller (J)
1, P
2, P
3) outlet be connected with the import of triple valve (20) jointly, the import of three check valves is connected with the liquid stream interface of outdoor air cooling heat exchanger (3), the liquid stream interface (5a) of second air cooling heat exchanger (5) and the refrigerant outlet (16) of water-refrigerant heat exchanger (8) respectively; Two outlets of triple valve (20) are connected with the import of two restricting elements (J1, J2) respectively; The outlet of two restricting elements (J1, J2) is connected with the liquid stream interface (3a) of outdoor air cooling heat exchanger (3) and the liquid stream interface (5a) of second air cooling heat exchanger (5) respectively; Gas circuit triple valve (D) is the Pneumatic three-way valve of the auxilliary valve of a kind of electromagnetism, and the common low pressure exhaust outlet that its electromagnetism is assisted valve (Df) is connected on the compressor air suction pipeline of system with tubule (Ls); Triple valve (20) is the Pneumatic three-way valve of the auxilliary valve of electromagnetism, and its electromagnetism is assisted the effective tube connector (L of public high pressure admission of valve (20f)
1) be connected on the compressor exhaust pipe the effective tube connector (L of low-pressure admission of the auxilliary valve of electromagnetism
2) be connected on the compressor suction duct.
5, the heat-pump hot-water unit that the water internal circulation heat-exchanging loop is arranged according to claim 1 is characterized in that: the flow controller (J) of the 4th kind of two wind regime multiloop loop systems can also replace with by five check valve (P
1, P
2, P
3, P
4, P
5) and an electric expansion valve (J1) composition, the connected mode of flow controller (J) is: first, second and third check valve (P
1, P
2, P
3) outlet be connected with the import of electric expansion valve (J1) jointly, the import of these three check valves connects and is connected with the liquid stream interface (3a) of outdoor air cooling heat exchanger (3), the liquid stream interface (5a) of second air cooling heat exchanger (5) and the refrigerant outlet (16) of water-refrigerant heat exchanger (8) respectively, the outlet of electric expansion valve (J1) is connected with the import of fourth, fifth check valve (P4, P5), and the outlet of fourth, fifth check valve is connected with the liquid stream interface (3a) of outdoor air cooling heat exchanger (3) and the liquid stream interface (5a) of second air cooling heat exchanger (5) respectively; Described compressor replaces with frequency-changeable compressor.
6, the heat-pump hot-water unit that the water internal circulation heat-exchanging loop is arranged according to claim 1 is characterized in that: the flow controller (J) of the 4th kind of two wind regime multiloop loop systems can also replace with by first, second and third check valve (P
1, P
2, P
3) and four sections capillaries (J1, J2, J3 and J4) formation; The connected mode of flow controller (J) is: the port in parallel of the import and second of first check valve (P1), the 4th capillary (J2, J4) is connected with the liquid stream interface (3a) of outdoor air cooling heat exchanger (3), the port in parallel of the outlet of second check valve (P2) and first capillary (J1) is connected with the liquid stream interface (5a) of second air cooling heat exchanger (5), the import of three capillary (J3) is connected with the refrigerant outlet (16) of water-refrigerant heat exchanger (8), the outlet of three capillary (J3) and second, third check valve (P
2, P3) the inlet parallel end connect, the outlet of the 3rd check valve (P3) is connected with the import of the 4th capillary (J4), the first check valve (P
1) outlet be connected with the link of first, second capillary (J1, J2); The refrigerant circuit systems of described the 4th kind of two wind regime multiloop loop systems, also between two outlet pipes of gas circuit triple valve (D), add one section one-way flow capillary pipeline of forming by check valve (P4) and capillary (Lb), flow to the pipeline that points to cross valve (2) import.
7, the heat-pump hot-water unit that the water internal circulation heat-exchanging loop is arranged according to claim 1, it is characterized in that: the system of described second kind of single air heat source, capillary restrictor, be assembled into two big parts respectively: the off-premises station that water-cold-producing medium heat-exchange system (H) and remaining parts are formed, split refrigerant inlet (15) and outlet (16) that point is placed on water-refrigerant heat exchanger (8), the off-premises station corresponding interface is equipped with two interface valves (15a and 16a), with tube connector corresponding interface is communicated with respectively when the user locates to install; The 4th kind of two wind regime multiloop loop system, be assembled into three-major-items respectively: water-cold-producing medium heat-exchange system (H), the indoor set of second air cooling heat exchanger (5) and the off-premises station that remaining parts is formed are arranged, split the gentle stream interface of liquid stream interface (5a) (5b) that point is placed on second air cooling heat exchanger (5), the refrigerant inlet (15) of water-cold-producing medium heat-exchange system (H) and outlet (16), the off-premises station corresponding interface is equipped with four interface valves (5c and 5d, 15a and 16a), when locating to install, the user with tube connector corresponding interface is communicated with respectively.
8, the heat-pump hot-water unit that the water internal circulation heat-exchanging loop is arranged according to claim 1 is characterized in that: described outdoor air cooling heat exchanger (3), can also arrange the finned tube (3c) of the logical non-refrigerant liquid of a current drainage in its inlet side.
9, the heat-pump hot-water unit that the water internal circulation heat-exchanging loop is arranged according to claim 1 is characterized in that: described water-cold-producing medium heat-exchange system, can also on the water inlet path, a water inlet preheater be installed.
10, the heat-pump hot-water unit that the water internal circulation heat-exchanging loop is arranged according to claim 1 is characterized in that: the finned tube (3c) of described outdoor air cooling heat exchanger (3) is and solar heat exchanger, or the loop of water at low temperature-liquid heat exchanger composition.
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| CNB2006100859133A CN100458313C (en) | 2006-05-26 | 2006-05-26 | Heat pump hot water machine set of water-containing internal circulation heat-exchanging loop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100859133A CN100458313C (en) | 2006-05-26 | 2006-05-26 | Heat pump hot water machine set of water-containing internal circulation heat-exchanging loop |
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| CN101078580A true CN101078580A (en) | 2007-11-28 |
| CN100458313C CN100458313C (en) | 2009-02-04 |
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| CNB2006100859133A Active CN100458313C (en) | 2006-05-26 | 2006-05-26 | Heat pump hot water machine set of water-containing internal circulation heat-exchanging loop |
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