CN1573226A - Heat pump water heater - Google Patents
Heat pump water heater Download PDFInfo
- Publication number
- CN1573226A CN1573226A CNA2004100018980A CN200410001898A CN1573226A CN 1573226 A CN1573226 A CN 1573226A CN A2004100018980 A CNA2004100018980 A CN A2004100018980A CN 200410001898 A CN200410001898 A CN 200410001898A CN 1573226 A CN1573226 A CN 1573226A
- Authority
- CN
- China
- Prior art keywords
- water
- heat
- hot
- mentioned
- refrigerant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
- F24H4/04—Storage heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/48—Water heaters for central heating incorporating heaters for domestic water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
This heat pump water heater comprises a heat pump refrigerant circuit obtained by successively connecting a compressor, a water-refrigerant heat exchanger performing the heat exchange between the water and a refrigerant, a decompressor, and an evaporator performing the heat exchanger between the air and the refrigerant through refrigerant pipes, and a heat pump hot water supply circuit obtained by connecting a water supply source, the water-refrigerant heat exchanger and a tapping hardware in a state in which the water supply source and the water-refrigerant heat exchanger are connected by a water supply pipe, and the water-refrigerant heat exchanger and the tapping hardware are connected by a hot water supply pipe. The water-refrigerant heat exchanger is installed in a position where the refrigerant heat-transfer pipe for flowing refrigerant from the heat-pump refrigerant circuit and the water heat-transfer pipe for flowing water from the heat-pump water heating circuit exchange heat. The plurality of water heat-transfer pipes are installed between the water-supply pipe and the hot water supply pipe.
Description
Technical field
The present invention relates to heat pump water-heating machine, the water that particularly has water-cold-producing medium heat exchanger heating directly supplies to the heat pump water-heating machine that water uses the instantaneous heat water function of terminal.
Background technology
The existing heat pump water-heating machine general the same jumbo water tank that is provided with electric heater, the price reduction electric power of use cheapness at night boils hot water at night with heat pump refrigerating agent loop, is stored in the water tank, uses the above-mentioned hot water of having stored by day.
But in above-mentioned water supply modes, the hot water amount of water tank is certain, and many date of use amount will hot water amount's deficiency, the date that use amount the is few off-energy that then can turn cold because of remaining hot water.In addition, under the situation of using the bathroom, after injecting hot water, be necessary to heat again, under above-mentioned existing hot water machine mode, supply this function of hot water owing to have only, so can't suitably deal with problems from water tank owing to hot water cools off to the bathroom.
As above-mentioned improving one's methods, the spy opens in the 2003-56904 communique (patent documentation 1) and has disclosed the heat pump water-heating machine that has added reheat function.
The heat pump water-heating machine of patent documentation 1 record becomes the cold-producing medium (carbon dioxide) of HTHP by circulation in having the heat pump circuit of cold-producing medium-water heat exchanger by compressor compresses, can make the cold-producing medium of heat in the heat pump circuit move and add hot water to water.The water that has been heated circulates via water tank or via the water-water heat exchanger of the water in circulation bathroom and circulate.By warmed-up water is circulated, boil the water of water tank in water tank.In addition, in water-water heat exchanger, circulate, heat the cold water in bathroom again by making warmed-up water.
That is, disclosed by with carbon dioxide as cold-producing medium, can in water-refrigerant heat exchanger, water be heated to about 90 ℃, therefore, also in heat pump circuit, carry out the heating again of the water of bathtub not only with the water boil of water tank.
Patent documentation 1: the spy opens the 2003-56904 communique
The tap if the heat pump water-heating machine that patent documentation 1 discloses is fetched boiling water then from the underfeed water of water-supply line to water tank, goes out the high-temperature-hot-water on water tank top by this hydraulic pressure, by the cold water mix of mixing valve and water-supply line, and the hot water of supply thermophilic.
That is, the heat pump water-heating machine of patent documentation 1 only carries out the heat pump running at night, and the full high-temperature water of storage does not carry out the heat pump running then in water tank, though if 1 glass hot water, also will be to feedwater place and all local hot water of supplying with such as commode, kitchen in bathroom.
Therefore, Shi Ji water tank has used 300～450L big jar like that.If use CO
2Cold-producing medium then also can be stored 90 ℃ of high-temperature water, but because the heat release of the part of high temperature nature, and have very big energy loss.
Big capacity water tank like this must have the abundant intensity that the space is set and the floor is set.This is because stored in water tank under the situation of hot water of all told, its quality can reach 50kg, therefore must guarantee full intensity when the foundation construction in place is set, in the apartment or such narrow place and the inadequate place of intensity of the balcony of apartment be difficult to carry out.And then, heat pump water-heating machine is transported to client the place is set the time also to expend a lot of expenses and formality.
In addition, carry out following such using method: the setting of the electricity charge is set to that the price reduction at night is set and carries out the heat pump running at night, be heated to be high-temperature-hot-water and be stored in the water tank, do not carry out the heat pump running in principle in the daytime, and use the hot water that is stored in the water tank.
Therefore, sometimes the hot water in the water tank is used up, and can water boil be had the situation of hot water at once.In addition, because the long-time storage a large amount of hot water higher than environment temperature, thus can be from the very big surperficial heat release of water tank and off-energy, be necessary the part that heating-up temperature redundantly descends thus at night.
So, the heat pump water-heating machine of patent documentation 1 have province's energy based on the hot water machine of the cost advantage of the price reduction expense at night, greenhouse effects of the earth aspect also have problem.
So, as province's energy of heat pump water-heating machine, prevent the solution of greenhouse effects of the earth from having as far as possible and not storing warm water, and the warm water of necessary amount is provided where necessary, be exactly so-called moment hot water mode.But, in order to realize the heat pump assembly of moment hot water mode, must be in the extremely short time heating also not heating on water, have compressor for example high capacity, improve the problems such as the capacity of heat transmission of water-refrigerant heat exchanger.Wherein, if when hope is exported hot water by the hydraulic pressure of water-supply line, the water heat pipe that extends and subtract thread water in order to improve the capacity of heat transmission then has the hydraulic pressure pressure drop in the water heat pipe to increase, and can not get the problem of sufficient hydraulic pressure during water outlet.
Summary of the invention
The purpose of this invention is to provide a kind of addressing the above problem, economizing energy, preventing superior heat pump water-heating machine aspect the greenhouse effects of the earth.
In order to achieve the above object, heat pump water-heating machine of the present invention possesses: via refrigerant piping successively with compressor, the water-refrigerant heat exchanger of carrying out the heat exchange of water and cold-producing medium, decompressor, carry out the heat pump refrigerating agent loop that the evaporimeter of the heat exchange of air-cold-producing medium couples together; At water-supply source, above-mentioned water-refrigerant heat exchanger, the hot water joint, connect above-mentioned water-supply source and above-mentioned water-refrigerant heat exchanger with the feedwater pipe arrangement, the heat-pump hot-water loop that connects above-mentioned water-refrigerant heat exchanger and hot water joint with the hot water pipe arrangement, above-mentioned water-refrigerant heat exchanger is arranged on the position that water heat pipe that cold-producing medium heat pipe that the cold-producing medium from above-mentioned heat pump refrigerating agent loop flows through and water from above-mentioned heat-pump hot-water loop flows through carries out heat exchange, by a plurality of above-mentioned water heat pipes are set between above-mentioned feedwater pipe arrangement and above-mentioned hot water pipe arrangement, make the water heat pipe of feedwater side be at least 2, because the heating surface (area) (HS based on the cold-producing medium heat pipe becomes 2 times, so can make the length of water heat pipe become 1/2, when can reducing water heat exchanger, hydraulic pressure pressure drop in the time of can making the flowing water of water heat pipe becomes 1/4, the pressure drop that can seek to improve heat conducting efficient and reduce the water heat pipe, realization directly provides the moment hot water mode of the warmed-up warm water of water-refrigerant heat exchanger.
In addition, it is metal tube that heat pump water-heating machine of the present invention also makes the cold-producing medium heat pipe of water-refrigerant heat exchanger and water heat pipe, and constitute mutual contact and be rolled into cylindricly, two sides of water heat pipe are contacted with the cold-producing medium heat pipe separately, can improve heat conductivity.In addition, the variation of internal diameter size can be guaranteed can not to produce and 90 degree are crooked and water is flow through glibly, and the heat exchanger of miniaturization can be become.
And then, heat pump water-heating machine of the present invention is on the basis of said structure, auxiliary tank is set, and be provided with heat-pump hot-water loop heating and be stored in warm water in the auxiliary tank, and be blended in the warm water of water supply and the auxiliary tank hot-water return that supplies water, by the hot-water return of setting, by supplying with the warm water that are stored in the auxiliary tank in a large number, the feedwater underheat in the time of can supplying the running beginning in heat pump running beginning back with the dual system of above-mentioned instantaneous heat water loop.
In addition, when the amount that must supply water under situations such as winter or shower is big, can use heat-pump hot-water loop and auxiliary tank hot-water return to carry out correspondence simultaneously, can play big effect by enough little auxiliary tanks.
And then, heat pump water-heating machine of the present invention is on the basis of said structure, the heat-pump hot-water loop can also be set have 2 compressors respectively, decompressor, two endless form of evaporimeter, shared water-refrigerant heat exchanger, and each cold-producing medium heat pipe and water-refrigerant heat exchanger installed integratedly, originally, in order to carry out moment hot water and must make heat pump cycle integral body have big capacity, and have a lot of problems, but by having two endless form, then have this problem that solved, even and just in case one out of joint, also can be by another effect that feeds water.
Description of drawings
Fig. 1 is the heat pump refrigerating agent loop of showing heat pump water-heating machine of the present invention, the ideograph of storing an embodiment of the summary structure of giving hot-water return and parts.
Fig. 2 is a structure chart of showing the water-refrigerant heat exchanger of one embodiment of the present of invention.
Fig. 3 shows the structure chart of the bathroom of one embodiment of the present of invention with heat exchanger.
Fig. 4 is a flow chart of showing an embodiment of the action the when assembling of heat pump water-heating machine of the present invention and auxiliary tank boil.
Fig. 5 is a flow chart of showing embodiment heat pump water-heating machine of the present invention, the action when feedwater is used.
Fig. 6 is a flow chart of showing embodiment heat pump water-heating machine of the present invention, the action the when bathroom is supplied with hot water and bathroom and heated.
Fig. 7 is a flow chart of showing an embodiment who heats again based on the automatic bathroom that turns round, bathroom.
The specific embodiment
Below, use Fig. 1 embodiments of the invention to be described to Fig. 3.Heat pump water-heating machine shown in Figure 1 is made of heat pump refrigerating agent loop 30, hot-water return 40, operation controller 50.
Heat pump refrigerating agent loop 30 possesses 2 freeze cycle.Each circulation couples together compressor 1a, 1b, condenser 2a, 2b, decompressor 3a, 3b, evaporimeter 4a, b successively via each refrigerant piping, has sealed cold-producing medium in each circulation.
Compressor 1a, the 1b that can carry out volume controlled turn round under big capacity under the situation of supplying with hot water in a large number.Compressor 1a, 1b control by PWM control, Control of Voltage (for example PAM control) and their combination, and rotation number is controlled to be from low speed rotation (for example 2000 rev/mins) to rotation (for example 8000 rev/mins) at a high speed.
Water-refrigerant heat exchanger 2 possesses in freeze cycle as refrigerant side heat pipe 2a, the 2b of condenser and feedwater side heat pipe 2e, 2f.For example between refrigerant side heat pipe 2a, 2b and feedwater side heat pipe 2e, 2f, carry out heat exchange by structure described later.
Defrosting magnetic valve 5a, 5b are the open and close valves of opening during the energising in the solenoid that is possessed.Magnetic valve 5a, 5b make the entrance side of the refrigerant gas of the HTHP that spues from compressor 1a, 1b by evaporimeter 4a, 4b.When winter, evaporimeter 4a, 4b had frost, magnetic valve 5a, 5b be by opening open and close valve, and the refrigerant gas that makes the HTHP that spues from compressor 1a, 1b is by refrigerant piping and inflow evaporator 4a, 4b play the effect of melting frost.
Hot-water return 40 switches each pipelines, necessary water-flow circuits such as realizing storing hot water, supply with hot water, hot water is supplied with in the bathroom, the bathroom heats again.
The heat-pump hot-water loop is the hot-water return of major part of the heat pump water-heating machine of present embodiment.The last water of obtaining from the conduct and the Joint for water supply 6 of the connector of water-supply line is depressurized by pressure-reducing valve 7, and delivers to by valve 8.By valve 8 is that to have more than be to supply water to water-refrigerant heat exchanger 2 and auxiliary tank 9, the proportioning valve that can also supply water to branched pipe 2 for the temperature of the hot water of regulating water outlet.Be heated by feedwater heat pipe 2e, 2f via feedwater pipe arrangement 2c from this last water that has passed through feedwater non-return valve 23 by valve 8.Warmed-up water is on the way adjusted valve 11 and by supplying with hot water pipe arrangement 2d, is supplied with hot water from the hot water out splice going splice 13 that is connected with this supply hot water pipe arrangement 2d to the outside of heat pump water-heating machine via the heat exchange flow.Successively each structure is coupled together via the water pipe arrangement.
Jar hot-water return possesses auxiliary tank 9, and this auxiliary tank 9 is by forming jar constituting of low capacity cylindraceous in the longitudinal direction, is in a ratio of little heat accumulation water pot about 1/3～1/5 with the heat accumulation water pot that hot water machine possessed of existing water storage mode.In addition, auxiliary tank 9 is under the low situation of the temperature of the hot water of supplying with by the heat-pump hot-water loop, can sneak into the warm water from the heat pump for supply hot-water return, and store the parts of the warm water of certain degree high temperature.
Specifically, open by jar flow rate regulating valve 12, the warm water that is stored in the auxiliary tank 9 flows out to supply hot water pipe arrangement 2d by branched pipe 2h.At this moment warm water is because the last water of supplying with by Joint for water supply 6 is accompanied by via pressure-reducing valve 7 and passes through valve 8 and pass through the controlled hydraulic pressure of water pipe arrangement by sending from auxiliary tank 9, and is injected into auxiliary tank 9.
The storage hot-water return that uses when the water of heating in the auxiliary tank 9 is formed between auxiliary tank 9 and the water-refrigerant heat exchanger 2.That is, the jar flow rate regulating valve 12 that branched pipe 2h open and from supply hot water pipe arrangement 2d branch is connected, jar circulating pump 10 is drawn from the bottom Jiang Shui of auxiliary tank 9.This water of drawing carries out heat exchange via feedwater pipe arrangement 2c by feedwater heat pipe 2e, 2f.The warm water that has passed through supply hot water pipe arrangement 2d is directed to auxiliary tank 9 by a heat exchange flow adjustment valve 11 and a jar flow rate regulating valve 12.This storage hot-water return is used to heat the hot water in the auxiliary tank 9 again, and changing a kind of saying is exactly the situation that heats the warm water in the auxiliary tank 9 again.
The basic structure in bathroom hot water loop from hot water to bathtub that supply with is identical with the heat-pump hot-water loop, replaces emitting hot water from hot water out splice going splice 13, and by from supplying with the branched pipe 2j supply hot water of hot water pipe arrangement 2d branch.By opening the bathroom hot water injection valve 14 that is connected with this branched pipe 2j, hot water is injected into the bathtub 18 that is connected with bathroom hot water joint 16 by bathroom sensor joint 15.Certainly, when bathtub 18 injects hot water, when water-refrigerant heat exchanger 2 is directly supplied with hot water, the hot water amount in not making auxiliary tank 9 becomes in the scope below the minimum necessary amount, carries out the auxiliary tank hot water supply from auxiliary tank 9 to bathtub 18.
Again the bathroom of the warm water in the Heating bath 18 again heating circuit be waterpipe between bathtub 18 and the water-water heat exchanger 20.Be sent to bathroom heat pipe 20b by the water of going into out hot water joint 17 usefulness bathroom circulating pumps and drawing and be heated from bathtub 18 by heat exchange, by bathroom sensor joint 15 time, measure the temperature of hot water after, enter joint 16 by hot water and supply with to bathtub 18.
The control of the heat pump water-heating machine of present embodiment then, is described.The operation controller 50 of heat pump water-heating machine is according to the operation setting of kitchen remote controller 51 and bathroom remote controller 52, carry out heat pump refrigerating agent loop 30 running, stop and the control of the rotation number of compressor 1a, 2b, running by a control jar circulating pump 10, bathroom circulating pump 19 simultaneously, stop and pass through valve 8, heat exchange flow and adjust valve 11, jar flow rate regulating valve 12, bathroom hot water and inject magnetic valve 14, water open and close valve 21, store the hot water running, supply with the hot water running, bathing pool supplies with hot water and turn round, add heat run.
Then, heat other in this hot water machine that are arranged on that present embodiment is described are controlled related machine.Be provided with detect from bathroom sensor joint 15 to the hot water temperature of bathtub 18 the same detect water-refrigerant heat exchanger 2 warmed-up water and be stored in water the auxiliary tank 9 and the temperature sensor of the state of temperature of the state of temperature of the warm water of supply etc. and other each several parts, detect the pressure that spues of compressor 1a, 1b pressure sensor, detect (they all do not have to illustrate) such as level sensors of the water level in the bathtub 18, each detection signal is imported into operation controller 50.Operation controller 50 is according to each machine of these signal controlling.
Water open and close valve 21 is set up and link position from the branched pipe 2g of hot-water return branch, i.e. position between water-refrigerant heat exchanger 2 and bathroom heat exchanger 20.Beyond when the bathroom heats, be closed to the water loop of bathroom heat exchanger 20 again, prevent that heat is from the leakage of water refrigerant heat exchanger 2 to bathroom heat exchanger 20.For example, if this water open and close valve 21 is not set, couple together with the supply hot water pipe arrangement 2d of hot-water return with as the bathroom heat exchanger 20 of water-water heat exchanger by the water in the pipeline, then owing to water does not flow and thermally coupled to branched pipe 2g from hot-water return, so heat can be leaked from bathroom heat exchanger 20.Equally, from the branched pipe 2h, the 2i that supply with hot water pipe arrangement 2d branch, 2j, the jar flow control valve 12 that connects previously at them by switch as required, by the pipeline configuration of valve 8 and bathroom hot water injection valve 14, make the heat leak when supplying with hot water considerably less.
In addition, bathroom non-return valve 22, feedwater non-return valve 23 make water only to a direction stream, prevent adverse current.Bathroom hot water injection valve 14 also plays a part identical.That is, till branched pipe 2j, be the water of going up water or having heated last water, but be the water of bathtub 18 after bathroom hot water injection valve 14, sneaked into the water of bathtub 18 at the upstream side of branched pipe 2j.
The heat hydraulic pressure of discharging valve 24 in auxiliary tank moves under the situation more than the regulation, at pressure protective device.
The embodiment of water-refrigerant heat exchanger 2 is described by Fig. 2.2 cold-producing medium heat pipe 2a, 2b, 2 feedwater heat pipe 2e, 2f are arranged in water-refrigerant heat exchanger 2, constitute and make cold-producing medium heat pipe 2a, 2b contact and be rolled into drum alternately with feedwater heat pipe 2e, 2f. Feedwater heat pipe 2e, 2f are positioned at water-refrigerant heat exchanger 2, at the water of obtaining by Joint for water supply 6 or be 2 pipelines that separate side by side between from the feedwater pipe arrangement 2c that water flow through of auxiliary tank 9 and the hot water supply pipe arrangement 2d that flow through by water-refrigerant heat exchanger 2 warmed-up water.Compare with one situation, the water flowing area by feedwater heat pipe 2e, 2f and become 2 times with the contact area of cold-producing medium heat pipe 2a, 2b can make each length become 1/2, and the internal drag can be with water flowing the time is reduced to 1/4.So the internal pressure drops of the water-refrigerant heat exchanger 2 during water flowing is compared with one situation becomes 1/4, can reduce simultaneously whole height, make easily and hold.
Carry out moment at the such use heat pump of transient heating that uses coal gas especially and supply with under the situation of hot water, the hydraulic pressure by water-supply source carries out the water circulation.But, the resistance the when internal pressure drops of water-refrigerant heat exchanger 2 becomes direct water flowing, discharge pressure becomes negative.Be under the situation of 200kPa at hydraulic pressure for example, in existing water-refrigerant heat exchanger, if pressure drop is 100kPa, then discharge pressure becomes 100kPa, and the possibility of hydraulic pressure decline, water yield deficiency is arranged.But under the situation of the water-refrigerant heat exchanger 2 of present embodiment, pressure drop becomes 1/4 25kPa, and discharge pressure is 175kPa, can keep sufficient hydraulic pressure, water yield.The function of the water that possesses again Heating bath, with the direct water and in the heat pump water-heating machine that supplies water in the heating of heat pump, the structure of water-refrigerant heat exchanger 2 of the present invention is suitable for the heat exchange of water and cold-producing medium, by the heating again in bathroom is separated from water-refrigerant heat exchanger with heat exchanger, improved the heat exchanger effectiveness of water-refrigerant heat exchanger more.
Then, illustrate that by Fig. 3 the bathroom heats an embodiment with heat exchanger 20 again.It is 2 heavy pipeline configurations that the bathroom heats with heat exchanger 20 again, in the inboard of the warm water heat pipe 20a that has used copper pipe the space 20c that is told by bathroom water heat pipe 20b is set.In the 20c of this space, make by water-refrigerant heat exchanger 2 warmed-up warm water mobile by the warm water pipe arrangement 20d that connects in the both sides of warm water heat pipe 20a.The bathroom water pipe arrangement 20b that flow of hot water in the bathtub is crossed is connected with bathroom water pipe arrangement 20e from the two fore-end 20f derivation of warm water heat pipe 20a.Warm water heat pipe 20a generally uses the copper straight tube, stranded its two fore-ends 20f and with the outer side engagement of bathroom water pipe arrangement 20e and sealing.Bathroom water heat pipe 20b is big in order to make with the contact area of warm water, and institute is so that cross-sectional periphery is concavo-convex, starriness or leafy pipe etc.Warm water pipe arrangement 20d is at the both end sides inside opening of warm water heat pipe 20a, the space 20c conducting of crossing with stream of warm water.
The bathroom heats with heat exchanger 20 by constituting above-mentioned 2 heavy pipes again, and is provided as the bathroom water heat pipe 20b that water flow through in the bathtub 18 of heated object in the free air space as the warm water of calandria.Therefore, the bathroom heats with heat exchanger 20 again and passes through its whole outer circumferentially bathroom water heat pipe 20b heat conduction, can become the good water-water heat exchanger of thermal conductivity with miniaturization.
In addition, heat again with in the heat exchanger in existing bathroom, owing to carry out heat exchange by cold-producing medium heat pipe and bathroom water heat pipe, so just in case the inside tube breakage situation under, high-pressure refrigerant is immersed in the water loop, has the water-feeding system of the drinking water in pair hot water machine to bring the possibility of influence, can not adopt a pipe to penetrate into 2 inboard heavy tubular constructions of another pipe, and as shown in Figure 2, refrigerant pipe and water pipe arrangement must be independent structures separately.
In addition, this bathroom again reheat heat exchanger 20 also considered following problem.That is, in the recirculated water of bathroom water, might comprise foreign material.If this bathroom water flows to space 20C side, then become the reason of accumulation foreign material on tube-surface concavo-convex.So, in the present embodiment, make the stream of warm water of having passed through water refrigerant heat exchanger 2 cross this space 2C.
That is, in an embodiment of the present invention, the bathroom heated with heat exchanger 20 again separates, by carrying out the water-hydrothermal exchange of heat cycles water and bathroom recirculated water, and can adopt 2 weight pipeline configurations with water-refrigerant heat exchanger 2.
By above-mentioned structure, the heat pump water-heating machine of present embodiment and hot water use beginning side by side to begin the heat pump running, the hot water that boils by water-refrigerant heat exchanger 2 directly can be provided to the hot water outlet terminal, in addition, bathroom by 2 heavy tubular constructions heats with the hot water in 20 pairs of bathrooms 18 of heat exchanger again, can access province's energy, prevent the effect of warmization.
Then, according to the flow chart of Fig. 4～Fig. 7, with reference to the heat pump circuit 30 of Fig. 1 and the running action of hot-water return 40 these heat pump water-heating machines of explanation.
Fig. 4 is an example showing the flow process of the running action when installing.Heat pump water-heating machine is from the manufacturing location carrying and be installed to the desirable place (step 60) that is provided with of user, Joint for water supply 6 is connected on the water-supply sources such as water channel, and after opening the switch (step 61) of water-supply source, then begin from water-supply source feedwater (step 62), after water is adjusted to certain pressure by pressure-reducing valve 7, flow into and store in hot-water cylinder 9, water-refrigerant heat exchanger 2 and each the water pipe arrangement, storage of water is (step 63) till full water state.
In addition, each machine during installation of heat pump water-heating machine is set to following such original state.Open in auxiliary tank 9 sides by valve 8, for closing state, the heat exchange flow is adjusted valve 11, jar flow rate regulating valve 12, water open and close valve 21 and all is out state as the branched pipe 2i side of hot water out splice going splice 13 sides, and bathroom hot water injection valve 14 is to close state.
Then, confirmed in step 63 under the situation of full water, be judged as feedwater and finish, connected power switch (step 64).By the control of operation controller 50, heat pump refrigerating agent loop 30 and hot-water return 40 entrys into service are carried out jar and are stored hot water running (step 65) like this.Store in the hot water running at this jar, compressor 1a, 1b entry into service, the gas shape cold-producing medium in compressor 1a, the 1b is compressed the cold-producing medium that is heated as HTHP, and is admitted to water-refrigerant heat exchanger 2.
Thus, in water-refrigerant heat exchanger 2, the water that flows through the high temperature refrigerant of cold-producing medium heat pipe 2a, 2b and flow through feedwater heat pipe 2e, 2f carries out heat exchange, the cold-producing medium heat release, and water is heated.Warmed-up cold-producing medium is depressurized by decompressor 3a, 3b, and then becomes the gas shape by evaporimeter 4a, 4b expansion evaporation, and returns compressor 1a, 1b once more.By this heat pump of continuous running, heat by the water in water-refrigerant heat exchanger 2.
Store in the hot water running at jar, turn round with heat pump, the running of beginning jar circulating pump 10 in storing hot-water return, adjust valve 11 and jar flow rate regulating valve 12 from the water that the outlet pass of the bottom of auxiliary tank 9 is drawn via jar circulating pump 10, water-refrigerant heat exchanger 2, heat exchange flow, be recycled to auxiliary tank 9.
Thus, stored from auxiliary tank 9 tops by water-refrigerant heat exchanger 2 warmed-up warm water, boiled all states of auxiliary tank 9 if arrive, then be judged as to store and finish (step 66), (step 67) shuts down.
In addition, for example carry out jar full water by detection full water states such as level sensor and pressure sensors and judge, for example the water temperature that detects the upper, middle and lower each several part of auxiliary tank 9 by thermistor is stored and is finished to judge (not shown).
Fig. 5 is an embodiment who shows the flow process when hot water uses.
If use hot water (step 70) at the hot water outlet terminal tap of fetching boiling water, then operation controller 50 starts compressor 1a, 1b, the running of beginning heat pump circuit 30, the hot-water return of adjusting valve 11, hot water out splice going splice 13 by Joint for water supply 6, pressure-reducing valve 7, by valve 8, feedwater non-return valve 23, water-refrigerant heat exchanger 2, heat exchange flow carries out moment and supplies with hot water running (step 71) simultaneously.Simultaneously, by Joint for water supply 6, pressure-reducing valve 7, carry out jar by valve 8, the hot-water return of storing hot-water cylinder 9, jar flow rate regulating valve 12, hot water out splice going splice 13 and supply with hot water turn round (step 77).
At this, water-refrigerant heat exchanger 2 will be delivered to the high temperature refrigerant that compressor 1a, 1b have compressed in heat pump refrigerating agent loop 30, the water that heating flows into from feedwater pipe arrangement 2c, and from supplying with hot water pipe arrangement 2d outflow, but the cold-producing medium of sending into water-refrigerant heat exchanger 2 during entry into service does not reach sufficient HTHP and temperature is low, and water-refrigerant heat exchanger 2 is whole cold, thereby does not fully add the heating efficiency of hot water.After after a while, cold-producing medium becomes HTHP, and consequent condensating refrigerant heat increases, to the heating efficiency increase of water.
But the time that reaches a high temperature till the stable state to the heating efficiency of heat pump running needs about 5,6 minutes usually.So operation controller 50 reaches till the high-temperature stable state that turns round after beginning, the rotation number of compressor is controlled to be to turn round than high usually high speed rotation, by with the effect that the water heat pipe stack that a plurality of fronts have illustrated is set in water-refrigerant heat exchanger 2, in the present embodiment, become about 1～2 minute the entry into service time.In addition, in the abundant miniaturization of seeking the auxiliary tank that heat pump circuit stores necessary hot water till stable, can realize having used the moment of heat pump to supply with the hot water mode.
Then, carry out after the jar supply hot water running of auxiliary tank supply hot water in the stipulated time (about about 1～2 minute) after the running beginning, operation controller 50 actions stop a jar supply hot water running, only switch to moment supply hot water running (step 72,78,79).According to the temperature that the duration of runs and the actual flow of measurement heat pump circuit are crossed the hot water of supplying with hot water pipe arrangement 2d, carry out the jar of this step 78 and supply with the hot water judgement.
Like this, only when the running beginning, supply with hot water transiently, then from auxiliary tank 9, directly supply with warm water by 2 heating of water-refrigerant heat exchanger, thereby the heating in the time can solving the running beginning compared with prior art, can also reduce the capacity of auxiliary tank 9 simultaneously slowly especially.In addition, quicken to promote the heating efficiency of water-refrigerant heat exchanger 2 till the stable state as far as possible, shorten the cambic jar of time of supplying with the hot water running of the hot water that uses auxiliary tank 9, also can reduce the capacity of auxiliary tank 9 more.
Therefore, wish the ability in heat pump refrigerating agent loop 30 to be increased to especially now generally about the 15kW more than 3 times about the 5kW of the compressor of use output, but just to not develop new compressor, also will study each new parts in heat pump refrigerating agent loop simultaneously, this is extremely difficult.So in an embodiment of the present invention, as mentioned above, be configured such that two endless form,, then guaranteed actual reliability if apply flexibly prior art again with 2 compressors.
In addition, operation controller 50 becomes setting when following in the delayed heat water yield of auxiliary tank 9, stops jar supplying with the hot water running, only carries out moment and supplies with hot water running (step 78,79).
Then, if the hot water use finishes to close the tap (step 80) of hot water outlet terminal, then use the back carrying out stopping running of heat pump for supply hot water and jar and supplying with hot water running both sides under the situation of jar supply hot water running and the running of heat pump for supply hot water at hot water.If a jar supply hot water running finishes, only carry out the running of heat pump for supply hot water, then stop moment supply hot water running (step 73,79).
And then, after operation controller 50 stopped jar supply hot water running and the running of heat pump for supply hot water at the same time, necessary beginning jar was stored hot water running (step 74), stores the hot water end by detections such as thermistors, after judging storage hot water end (step 75), finish running (step 76).
But, carry out storing the detection of hot water conditions frequently based on the jar of thermistor, after the heat-pump hot-water running of using for the utmost point short time stops, in auxiliary tank water temperature, hot water amount all with store under the hot water done state situation much at one, be judged as and store the hot water end, and do not store the hot water running.
By above-mentioned, operation controller 50 must have following each storage hot water function of motion: certain the running in be through with become the running of purpose after, till finishing, hot water carries out the running of jar storage hot water to storing, thereby the hot water that often has the set point of temperature of canful in the storage hot-water cylinder, it is low and make the worry that hot water is used up in the purposes to eliminate the hot water temperature in when beginning running.
Fig. 6 shows that the hot water that turns round automatically based on the bathroom injects the flow chart of an embodiment of action.Pressing the bathroom automatic button is ON (step 85), if arrive the time that is provided with, then supplies with hot water running (step 87) side by side with the bathroom, carries out jar and supplies with hot water running (step 92).The bathroom is supplied with the hot water running and is carried out heat pump for supply hot water running shown in Figure 5, supplies with hot water to bathroom bathtub 18.
Promptly, between 2 minutes after the heat pump running beginning, carry out the bathroom simultaneously and supply with the hot water running and jar store the hot water running, if the bathroom hot water temperature arrives stable state, then stop a jar supply hot water running (step 93,94), only carry out the bathroom and supply with the hot water running.In addition, in the running of bathroom supply hot water, continue to detect hot water amount in bathroom hot water temperature and the bathtub,, then stop the bathroom and supply with hot water running (step 89,90,91) if the hot water of the interior set point of temperature of bathtub has arrived the hot water amount of regulation.
Fig. 7 is a flow chart of showing an embodiment who heats again based on the automatic bathroom that turns round, bathroom.Press the bathroom automatic button and become ON (step 95), after then hot water is supplied with in the bathroom, hot water temperature and hot water amount's (step 96) in stipulated time (for example 30 minutes) detection bathtub, hot water temperature or hot water amount become under the setting situation in addition again, carry out the bathroom and add heat run (step 97) again, hot water temperature and hot water amount are become in the setting, stop bathroom running (step 98～101).
As described above,, realize running in case of necessity, only provide moment of hot water of the necessary temp of necessary amount to supply with the hot water mode, can access the significantly miniaturization of storing hot-water cylinder, economize effect such as energy with heat pump mode by the present invention.
Claims (5)
1. heat pump water-heating machine is characterized in that comprising:
Via refrigerant piping successively with compressor, the water-refrigerant heat exchanger of carrying out the heat exchange of water-cold-producing medium, decompressor, carry out the heat pump refrigerating agent loop that the evaporimeter of the heat exchange of air and cold-producing medium couples together;
At water-supply source, above-mentioned water-refrigerant heat exchanger, hot water joint, connect above-mentioned water-supply source and above-mentioned water-refrigerant heat exchanger with the feedwater pipe arrangement, connect the heat-pump hot-water loop of above-mentioned water-refrigerant heat exchanger and hot water joint with the hot water pipe arrangement, wherein
Above-mentioned water-refrigerant heat exchanger is arranged on from the cold-producing medium heat pipe that cold-producing medium flow through in above-mentioned heat pump refrigerating agent loop with from the position that the water heat pipe that water flow through in above-mentioned heat-pump hot-water loop carries out heat exchange, and a plurality of above-mentioned water heat pipes are set between above-mentioned feedwater pipe arrangement and above-mentioned hot water pipe arrangement.
2. heat pump water-heating machine according to claim 1 is characterized in that:
The above-mentioned cold-producing medium heat pipe and the above-mentioned water heat pipe of above-mentioned water-refrigerant heat exchanger are made of metal tube, the configuration that each pipe is designed to be in contact with one another, being shaped as of above-mentioned water-refrigerant heat exchanger with above-mentioned cold-producing medium heat pipe and the rolled-up drum of above-mentioned water heat pipe, the direction and the central axes that make above-mentioned contact configuration.
3. heat pump water-heating machine according to claim 1 and 2 is characterized in that:
Possesses the auxiliary tank of storing warm water, be provided with and add to warm water from the hot water in above-mentioned heat-pump hot-water loop and export the auxiliary tank hot-water return of hot water from this auxiliary tank, and the hot-water return with dual system of above-mentioned heat-pump hot-water loop and auxiliary tank hot-water return.
4. heat pump water-heating machine according to claim 1 and 2 is characterized in that:
Above-mentioned heat pump refrigerating agent loop possesses 2 compressors, 2 decompressors, 2 evaporimeters, and 2 freeze cycle that are connected with separately compressor by the above-mentioned cold-producing medium heat pipe of above-mentioned water-refrigerant heat exchanger constitute.
5. heat pump water-heating machine according to claim 1 and 2 is characterized in that:
Above-mentioned heat pump refrigerating agent loop is provided with different with the above-mentioned water-refrigerant heat exchanger heat exchangers that are used for heating again bathroom water.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP178861/2003 | 2003-06-24 | ||
| JP2003178861A JP3909311B2 (en) | 2003-06-24 | 2003-06-24 | Heat pump water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1573226A true CN1573226A (en) | 2005-02-02 |
| CN100549550C CN100549550C (en) | 2009-10-14 |
Family
ID=34180320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100018980A Expired - Fee Related CN100549550C (en) | 2003-06-24 | 2004-01-15 | Heat pump water-heating machine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3909311B2 (en) |
| KR (1) | KR100563178B1 (en) |
| CN (1) | CN100549550C (en) |
| HK (1) | HK1074482A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365353C (en) * | 2005-07-07 | 2008-01-30 | 虞海灿 | Energy-storage heat pump water heater system for commercial purpose |
| CN100443822C (en) * | 2005-03-24 | 2008-12-17 | 日立空调·家用电器株式会社 | Heat-pump hot water supply apparatus |
| CN102884384A (en) * | 2010-09-27 | 2013-01-16 | 东芝开利株式会社 | Hot water supply system |
| CN102944065A (en) * | 2012-11-30 | 2013-02-27 | 苏宇贵 | Three-casing-pipe heat exchanger and heat pump water heater using same |
| CN103499224A (en) * | 2007-07-26 | 2014-01-08 | 通用电气公司 | Method and apparatus for heat recovery within a syngas cooler |
| CN104214947A (en) * | 2013-06-02 | 2014-12-17 | 卢海南 | Water tank with inner container wound with double-pipe device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4839141B2 (en) * | 2006-06-26 | 2011-12-21 | 日立アプライアンス株式会社 | Heat pump water heater |
| JP2009127938A (en) * | 2007-11-22 | 2009-06-11 | Hitachi Appliances Inc | Heat pump water heater |
| CZ305058B6 (en) * | 2013-09-13 | 2015-04-15 | Nepa Spol. S R.O. | Method of controlled transfer of heat from heating medium circuit of heat source with storage tank and turbine pump to heated consumer water circuit |
| CN105485925A (en) * | 2015-12-30 | 2016-04-13 | 广东万家乐燃气具有限公司 | Variable-litre gas water heater |
| CN109373796B (en) * | 2018-12-18 | 2024-06-28 | 浙江海洋大学 | Recycling device for low-grade heat source of ship |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2090508U (en) * | 1991-04-29 | 1991-12-11 | 水利电力部南京电力自动化设备厂 | Small immersion heat-exchanger |
| CN1259644A (en) * | 1999-01-04 | 2000-07-12 | 童夏民 | Heat pump type safety water heater |
| CN2407296Y (en) * | 2000-02-23 | 2000-11-22 | 淮阴辉煌太阳能有限公司 | Heat pump type water heater |
| CN2488004Y (en) * | 2001-02-28 | 2002-04-24 | 辜志花 | Heat pump type water heater with cooler and energy regulator |
-
2003
- 2003-06-24 JP JP2003178861A patent/JP3909311B2/en not_active Expired - Fee Related
-
2004
- 2004-01-15 CN CNB2004100018980A patent/CN100549550C/en not_active Expired - Fee Related
- 2004-01-28 KR KR1020040005224A patent/KR100563178B1/en not_active IP Right Cessation
-
2005
- 2005-08-02 HK HK05106640.6A patent/HK1074482A1/en not_active IP Right Cessation
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443822C (en) * | 2005-03-24 | 2008-12-17 | 日立空调·家用电器株式会社 | Heat-pump hot water supply apparatus |
| CN100365353C (en) * | 2005-07-07 | 2008-01-30 | 虞海灿 | Energy-storage heat pump water heater system for commercial purpose |
| CN103499224A (en) * | 2007-07-26 | 2014-01-08 | 通用电气公司 | Method and apparatus for heat recovery within a syngas cooler |
| CN102884384A (en) * | 2010-09-27 | 2013-01-16 | 东芝开利株式会社 | Hot water supply system |
| CN102944065A (en) * | 2012-11-30 | 2013-02-27 | 苏宇贵 | Three-casing-pipe heat exchanger and heat pump water heater using same |
| CN102944065B (en) * | 2012-11-30 | 2015-05-27 | 苏宇贵 | Three-casing-pipe heat exchanger and heat pump water heater using same |
| CN104214947A (en) * | 2013-06-02 | 2014-12-17 | 卢海南 | Water tank with inner container wound with double-pipe device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050005744A (en) | 2005-01-14 |
| KR100563178B1 (en) | 2006-03-27 |
| JP2005016757A (en) | 2005-01-20 |
| HK1074482A1 (en) | 2005-11-11 |
| CN100549550C (en) | 2009-10-14 |
| JP3909311B2 (en) | 2007-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1229596C (en) | Heat pump type hot-water supply apparatus | |
| US9010281B2 (en) | Hot water supply system | |
| CN106440404B (en) | A kind of solar water heat pump system | |
| CN1573226A (en) | Heat pump water heater | |
| CN1837707A (en) | Heat-pump hot water supply apparatus | |
| EP1941211A1 (en) | Improved energy storage system | |
| CN101324372A (en) | Split circulation supercharging type solar water heater | |
| JP2007327679A (en) | Hot water supply system | |
| JP2011133122A (en) | Ground heat utilization heat pump system and water heat utilization heat pump system | |
| KR101376059B1 (en) | Natural circulation type hot-water supply system using solar heat for local heating | |
| CN102016439B (en) | Heat pump water heater | |
| JP2005133973A (en) | Heat pump water heater | |
| JP2014037963A (en) | Solar heat hot water supply system | |
| CN201014638Y (en) | Central hot water supply device using solar energy and heat exchanger | |
| JP2012180962A (en) | Water heater system having hot water storage tank with auxiliary heat source | |
| JP2008064338A (en) | Hot water storage device | |
| US4852547A (en) | Heat storage | |
| CN102679581A (en) | Solar water boiling device | |
| CN103300803A (en) | Residual heat utilization system for dish washing machine in canteen or restaurant | |
| CN214665206U (en) | Heat supply hot water unit | |
| CN201547883U (en) | Solar water-heating device | |
| CN102679567A (en) | Solar water heater | |
| JP2010281510A (en) | Hot water supply device | |
| CN201787665U (en) | Combined water heating device for centralized preheating and individual constant-temperature water supply | |
| CN201152642Y (en) | Non-pressure-bearing split solar water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1074482 Country of ref document: HK |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1074482 Country of ref document: HK |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20160115 |
|
| EXPY | Termination of patent right or utility model |