CN1912492A - Bathroom heating and drying device with heat pump for supply of hot water - Google Patents

Bathroom heating and drying device with heat pump for supply of hot water Download PDF

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Publication number
CN1912492A
CN1912492A CN 200610115475 CN200610115475A CN1912492A CN 1912492 A CN1912492 A CN 1912492A CN 200610115475 CN200610115475 CN 200610115475 CN 200610115475 A CN200610115475 A CN 200610115475A CN 1912492 A CN1912492 A CN 1912492A
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China
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water
hot water
supply
heat pump
hot
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店网太一
权守仁彦
幸野雄
小山昌喜
向井有吾
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Hitachi Appliances Inc
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Hitachi Appliances Inc
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12Hot water central heating systems using heat pumps

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  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Central Heating Systems (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The invention relates to a heat pump hot-water supply bathroom heating/drying device. Although a direct hot-water supply type is being considered in order to reduce size and weight in a heat pump hot-water supply bathroom heating/drying device having bathroom heating and drying functions at the same time, the difference between necessary heating capability in a hot-water supply operation and that in a bathroom heating/drying operation is large, it can not be handled by conventional control of the number of revolutions of a compressor, and, in particular, separation, loss of synchronism, noise and the like of a compression mechanism part are generated in a low-speed operation in the bathroom heating/drying operation. The invention provides a heat pump hot-water supply bathroom heating/drying device which is solved the conventional problem by executing a heat pump operation in using hot water, by adding a bathroom heating/drying function to a direct hot-water supply type heat pump water heater for directly supplying heating water to a used terminal, and by skillfully using control of the number of revolutions and capacity control as a control method of a compressor in response to a situation.

Description

Bathroom heating and drying device with heat pump for supply of hot water
Technical field
The present invention relates to bathroom heating and drying device with heat pump for supply of hot water, a kind of variable amplitude that enlarges compressor is provided especially, but high efficiency and tackling well from the running of the jumbo supply hot water of needs to the bathroom heating and drying device with heat pump for supply of hot water of low capacity with regard to achievable bathroom heating dry operating.
Background technology
In recent years, along with popularizing of heat pump for supply hot water machine, a kind of device that possesses the geothermal heating system function has been proposed.As this type of heat pump for supply hot water machine, for example patent documentation 1: the spy opens the disclosed device of 2003-247753 communique.
It is to carry out the heat pump running comparatively cheap night in the electricity charge in advance, makes the hot water boiling and is stored in advance in the hot water water storage tank, and the hot water of corresponding required use hot water water storage tank carries out supply hot water from tap and uses or make hot water circuit carry out geothermal heating system.
Have again, usually, storing the hot water temperature is 60~90 ℃, relative therewith, and tap is supplied with the hot water temperature and is about 40 ℃, the serviceability temperature of the circulating hot water during geothermal heating system is 55~60 ℃, any situation when tap is supplied with hot water, geothermal heating system, serviceability temperature are all low than storing the hot water temperature, when tap is supplied with hot water, append water supply, the hybrid geothermal heating returns hot water so that carry out the adjustment of temperature when geothermal heating system.
In the heat pump for supply hot water machine that possesses above-mentioned existing geothermal heating system function or bathroom heating functions/drying, the big capacity hot water water storage tank of 400L~600L is essential, when filling hot water, only the hot water amount just reaches 400kg~600kg, therefore the heat pump sub-assembly to be set respectively and store the hot water sub-assembly, exist area is set, intensity is set, must carries out at the scene that the heat pump sub-assembly is connected with water pipe arrangement between the storage hot water sub-assembly etc. at the variety of issue that is provided with in the construction.
In addition, because weather or guest, when the use amount of hot water increased in one day, the hot water that worry can take place in the hot water water storage tank was used up, and can't supply with the unfavorable condition of the hot water etc. of water for bathing.
Especially, all can increase because tap supply hot water amount, water for bathing are mended the hot water use amount of burning the dry any situations such as use amount of use amount, geothermal heating system or bathroom heating in the winter time, therefore be easy to cause the deficiency of the hot water amount in the hot water water storage tank, must strengthen the hot water water storage tank in the winter time in addition so that it is more than aequum.
Have again, owing to possess bathroom heating functions/drying, the difference of use supply hot water amount's family structure etc. increases, for the bathroom more family of heating functions/drying that uses the heat pump for supply hot water machine, cause the deficiency of storing the hot water amount easily, not too use the family of the bathroom heating functions/drying of heat pump for supply hot water machine for using other heating functions, strengthen the hot water water storage tank so that it is more than aequum.
In addition, when storing the hot water running in the winter time, because about 10 ℃ poach is reached 60~90 ℃, therefore 50~80 ℃ heating efficiency is essential, but when bathroom heating dry operating, the hot water after circulation primary is boiled is in circulation, only heating cools off and partly gets final product, when therefore for example the bathroom heating was dry, the hot water of sending 55~60 ℃ carried out bathroom heating drying, and the hot water temperature who returns is about 45~50 ℃, therefore, heating efficiency only 10 ℃ it is enough.Thus, when supplying with the hot water running in the winter time, compressor must be set at high speed revolution (for example 7000 rev/mins), when bathroom heating dry operating, compressor must be set at low speed revolution (for example 1000 rev/mins).And, owing to meet maximum capacity design compressor, can be corresponding when supplying with the hot water running, but during the heating of the bathroom when temperature is high around dry operating, become low-speed running, therefore because the unfavorable condition of the disengaging of scroll compressor, imbalance etc. constitutes the main cause that the generation ability very descends or the unfavorable condition of noise etc. takes place, the low danger of reliability is arranged.
Promptly, the difference of the necessary heating efficiency the when necessity when supplying with the hot water running adds heat energy and bathroom heating dry operating is bigger, can't be corresponding one by one in existing compressor revolution control, in the low-speed running when bathroom heating dry operating, following misgivings are arranged: the disengaging of compression mechanical part or the generation of imbalance, noise etc. become problem.
On the other hand, from saving the viewpoint of the energy, in the heat pump running, work as supply water temperature one regularly, the high more running efficiency of heating-up temperature is just low more, therefore supply with hot water and bathroom heating drying for tap, be higher than the storage hot water temperature's of serviceability temperature amount, under the low condition of running efficiency, carry out the heat pump running.
Have, owing to store a large amount of high-temperature hot water in advance in the hot water water storage tank, the off-energy that causes so emit heat also is a very big problem again.
Summary of the invention
The objective of the invention is in the heat pump for supply hot water machine that possesses bathroom heating functions/drying, improve the reliability when bathroom heating dry operating.
The present invention is as the method that solves the problem that exists in the heat pump for supply hot water machine that possesses bathroom heating functions/drying, a kind of bathroom heating and drying device with heat pump for supply of hot water is provided, its heat pump that does not carry out in advance at night turns round, when using hot water, carry out the heat pump running, in will adding the direct supply hot-water type heat pump for supply hot water machine that hot water supplies to direct use terminal in the additional bathroom heating functions/drying, control method as compressor, by separately using revolution control and volume controlled dexterously, the problems referred to above have been solved.
The invention of scheme one possesses: by the thermal source loop that constitutes with compressor, refrigerant switch valve, supply hot water exchanger, the dry heat pump refrigerant loop that constitutes with heat exchanger, decompressor, evaporimeter of bathroom heating; Water after heating is supplied water is also supplied with the supply hot-water return of hot water; And the thermophore of heat cycles and the bathroom of the supplying with heat dry loop of heating, have and supplying with when hot compressor is carried out revolution control, when supplying with heat in the dry loop of heating to the bathroom compressor carried out the running controlling organization of volume controlled to supplying with hot-water return, therefore, owing to do not needing jumbo hot water water storage tank, can realize the small-sized lightness of product, significantly improve execution conditions are set, simultaneously, can realize solving the problem that hot water uses up or reduce and emit from the heat of hot water water storage tank.
In addition, the heating during the heat pump running goes out the use separately of hot water temperature's correspondence and supplies with the hot water temperature, and is therefore low than existing storage hot water temperature, can improve running efficiency.
Have again, because the volume controlled of the revolution control with the control of compressor during with high capacity when hanging down load separated use, so enlarge the heating efficiency variable amplitude of compressor, the function that the disengaging of the compression mechanical part when having solved low load slow speed, imbalance cause reduces or the existing issue of noise etc., but the high efficiency reply from needs supply with jumbo winter the hot water running to low capacity with regard to achievable bathroom heating dry operating.In addition, adopt the present invention, can improve direct supply hot-water type bathroom heating and drying device with heat pump for supply of hot water reliability and can realize miniaturization and.
Secondly, the invention of scheme two is according to scheme one described device, above-mentioned heat pump refrigerant loop, possesses the refrigerant compression pars intermedia that is positioned at above-mentioned compressor, and the capacity control drive between above-mentioned evaporimeter and the above-mentioned compressor, when the revolution control of above-mentioned compressor, close above-mentioned capacity control drive in advance, when volume controlled, open, therefore in existing compressor arrangement, by outlet in the middle of being provided with at refrigerant compression pars intermedia, the simple structure that connects capacity control drive with switching function, make the volume controlled of compressor become possibility, the raising of the running efficiency when being implemented in low capacity with regard to achievable bathroom heating dry operating.Therefore in addition,, can alleviate the refrigerant compressive load of compressor, can solve because the problem of the disengaging of the vortex mechanism that low-speed running causes, imbalance, noise etc. by above-mentioned volume controlled.In addition, adopt this structure, the new compressor of new capacity control mechanism is housed in can developing, just can realize the saving of compressor development cost and the raising of reliability.
Secondly, the invention of scheme three is according to scheme one described device, constitute above-mentioned thermal source loop with a plurality of heat pump refrigerants loop, a plurality of heat pump refrigerants loop of when supplying with hot water, turning round, the independent heat pump refrigerant loop of running when the bathroom heating is dry, therefore can further enlarge the amplitude of supplying with the hot water ability, can supply with the hot water running to just carrying out optimum operation the bathroom heating dry operating that it is enough jumbo winter from needs with low capacity.
In addition, by using a plurality of heat pump refrigerants loop when the jumbo supply hot water of needs, when the bathroom heating that just it is enough with low capacity is dry, use independent heat pump refrigerant loop, can corresponding purposes carry out optimum operation, obtain the effect of comfortable control, the saving energy etc.
Secondly, the invention of scheme four is according to scheme one described device, constitute above-mentioned thermal source loop with two heat pump refrigerant loops that have volume control function and do not have a volume control function, two heat pump refrigerant loops of running when supplying with hot water, the heat pump refrigerant loop of only turning round and having volume controlled when the bathroom heating is dry, water for bathing is mended the heat pump refrigerant loop of only turning round and not having volume controlled when burning, therefore the compressor of volume controlled just can be finished with one, reduced original cost, the load of two the corresponding supply in heat pump refrigerant loop hot water is used effectively, can improve comfort, owing to when bathroom heating dry operating and water for bathing benefit burning, separately use two heat pump refrigerant loops, can obtain the balance of the duration of runs simultaneously, realize the raising of reliability of service life.
Secondly, the invention of scheme five is according to scheme one described device, above-mentioned running controlling organization uses with the bathroom heating is dry and uses or water for bathing is mended to burn and used when carrying out simultaneously supplying with hot water, make and supply with the preferential revolution control of hot water running, therefore for example in bathroom heating drying, supply with hot water with kitchen faucet and clean the situation of tableware owing to make kitchen supply hot water preferential, therefore do not impact cleaning tableware, heating drying capacity in bathroom also has the situation of decline during several minutes of cleaning tableware, but because the temperature difference before and after the drying of the bathroom of the thermophore of circulation heating originally is about 10 ℃, so influence is very little.
In addition, when water for bathing was mended burning, the situation of supplying with hot water cleaning tableware with kitchen faucet can cause postponing the benefit burning of water for bathing, but prevents to become cold water when cleaning tableware, can reduce influence.Have again, when water for bathing is supplied with hot water, supply with hot water with kitchen faucet and clean the situation of tableware, also can have about 5 minutes the situation of the time of boiling lengthening of water for bathing, but we can say that also influence is very little owing to make kitchen supply hot water preferential.
So, burn when using simultaneously, have the situation that the heating efficiency deficiency takes place owing to supply with hot water and bathroom heating drying or water for bathing benefit, preferential by making the kitchen supply with hot water, can be minimum with other influence is reduced to, can realize the raising of comfort.
Secondly, the invention of scheme six is that above-mentioned supply hot-water return has according to scheme one described device: supply with hot-water return from the hot water water storage tank to the water tank that uses terminal to supply with hot water; And will be with supplying with hot water extremely directly uses terminal with the hot water supply of heat exchanger heats direct supply hot-water return, therefore always at the hot water water storage tank hot water that prestores, when supplying with hot water, supply with the deficiency that hot water replenishes heat pump refrigerant running beginning heating efficiency afterwards with water tank, when utilizing the adding heating power and reach the preference temperature (about 40 ℃) of supplying with hot water of heat pump refrigerant running, stop water tank and supply with hot water, switch to direct supply hot water, thereby the hot water water storage tank of realization usefulness low capacity shortens the deadline when supplying with hot water.
In addition, be set at the terminal serviceability temperature (about 40 ℃) that is lower than water tank storage hot water temperature (about 65 ℃), the raising that can realize heating running efficiency by the temperature of boiling after the heat pump running is stable.
Adopt the present invention, the reliability in the time of can improving bathroom heating drying.
Description of drawings
Fig. 1 be the bathroom heating and drying device with heat pump for supply of hot water of expression first embodiment of the invention heat pump refrigerant loop, supply with the heat ideograph of an embodiment of summary structure of dry loop, running controlling organization and part of hot-water return, bathroom.
Fig. 2 is the flow chart of an embodiment of expression installation of bathroom heating and drying device with heat pump for supply of hot water of the present invention and the pipe arrangement affirmation action when connecting.
Fig. 3 is the flow chart of the embodiment that moves when supplying with hot water of the kitchen of expression bathroom heating and drying device with heat pump for supply of hot water of the present invention.
Fig. 4 is illustrated in the bathroom heating and drying device with heat pump for supply of hot water of the present invention, the service performance figure of the revolution of the compressor when revolution control and volume controlled and an embodiment of heating efficiency relation.
Fig. 5 is illustrated in the bathroom heating and drying device with heat pump for supply of hot water of the present invention, the flow chart of an embodiment who moves when turning round the injection water for bathing automatically by water for bathing.
Fig. 6 is illustrated in the bathroom heating and drying device with heat pump for supply of hot water of the present invention, at the automatic flow chart of one embodiment of action during the water for bathing insulation in the running of water for bathing.
Fig. 7 is in the expression second embodiment of the invention, the heat pump refrigerant loop of bathroom heating and drying device with heat pump for supply of hot water, supplies with the heat ideograph of an embodiment of summary structure of dry loop, running controlling organization and part of hot-water return, bathroom.
Among the figure: 1a, the 1b-compressor, 2a~2b-refrigerant switch valve, 3-hot water interchanger, 4a~4c-decompressor, 5a, the 5b-evaporimeter, the 6-capacity control drive, 7-water for bathing heat exchanger, the dry heat exchanger of using of 8-bathroom heating, the dry circulating pump, 10-water supply metalwork, 11-pressure-reducing valve used of 9-bathroom heating, 12-water-supply quantity sensor, 13-water non-return valve, 14-hot water water storage tank, 15-case circulating pump, 16-supplies with the hot water mixing valve, 17-water supply mixing valve, the 18-flow rate regulating valve, the 19-kitchen goes out the hot water metalwork, the 20-kitchen faucet, the 21-water for bathing injects hot water valve, 22-flow switch, 23-water for bathing circulating pump, the 24-level sensor, 25-turnover hot water metalwork, 26-water for bathing circulation colligator, 27-bathtub, the 28-water for bathing goes out the hot water metalwork, the heating of 29-bathroom is dry with supplying with the hot water metalwork, and the heating of 30-bathroom is dry with returning metalwork, 31,32-bathroom heating and drying device, 35-adds the hot-water switch valve, 36-heat exchange flow sensor, 40-thermal source loop, 41-bathroom heating dried side refrigerant loop, 42-water for bathing side refrigerant loop, 45-supplies with hot-water return, the 50-dry loop of heating in the bathroom, the 55-controlling organization that turns round, 56-kitchen remote controller, 57-water for bathing remote controller.
The specific embodiment
Below, according to Fig. 1~Fig. 6 the first embodiment of the present invention is described.
Among Fig. 1, bathroom heating and drying device with heat pump for supply of hot water possesses: the thermal source loop 40 that is made of the heat pump refrigerant loop of bathroom heating dried side refrigerant loop 41 and water for bathing side refrigerant loop 42 these two systems; Supply with hot-water return 45; Dry with heat exchanger 8 and turn round controlling organization 55 and constitute as the heat bathroom heating of constituent part in dry loop 50 of bathroom.
Above-mentioned thermal source loop 40, supply hot-water return 45 and bathroom heating are dry uses heat exchanger 8 one folding and unfoldings in same casing, and running controlling organization 55 constitutes by the kitchen remote controller 56 and the water for bathing remote controller 57 of setting respectively.
Have again, for example dry with control panel as the heat bathroom heating and drying device 31,32 of constituent part in dry loop 50 of above-mentioned bathroom as bathroom heating, be provided with respectively with bathroom heating and drying device with heat pump for supply of hot water, utilize the bathroom heating dry dry with returning metalwork 30, be connected with bathroom heating and drying device with heat pump for supply of hot water and use with supplying with the heating of hot water metalwork 29 and bathroom.
Thermal source loop 40 is mended the heating source when burning as bathroom heating drying and water for bathing and is worked, and adopts heating dried side refrigerant loop 41, bathroom and 42 two the circulating heat pump modes in water for bathing side refrigerant loop.Bathroom heating dried side refrigerant loop 41 is made of following loop: connect compressor 1a, refrigerant switch valve 2a successively, be configured in and supply with hot water with the refrigerant side heat-transfer pipe 3a on the heat exchanger 3, the loop of decompressor 4a, evaporimeter 5a by means of sparge pipe; And by means of sparge pipe connect compressor 1a, refrigerant switch valve 2b successively, to be configured in bathroom heating dry with the dry loop with refrigerant pipe 8a, decompressor 4c, evaporimeter 5a of the heating of the bathroom on the heat exchanger 8, water for bathing side refrigerant loop 42 is made of following loop: connect compressor 1b, refrigerant switch valve 2c successively, be configured in and supply with hot water with the refrigerant side heat-transfer pipe 3b on the heat exchanger 3, the loop of decompressor 4b, evaporimeter 5b by means of sparge pipe; And connect compressor 1b, refrigerant switch valve 2d successively, be configured in water for bathing with the loop of the water for bathing on the heat exchanger 7 with refrigerant pipe 7a, decompressor 4b, evaporimeter 5b by means of sparge pipe.In these loops, enclose refrigerant, carry out the switching in the refrigerant loop between the loop by switch refrigerant switch valve 2a, 2b, 2c, 2d.
Compressor 1a, 1b can be applicable to the big capacity of direct supply hot-water type heat pump for supply hot water machine and can correspondence supply with the revolution control type compressor that the hot water amount changes revolution.That is, compressor 1a, 1b utilize PWM control, Control of Voltage (for example PAM control) and their combination control, carry out revolution control during from low speed (for example 1000 rev/mins) to high speed (for example 7000 rev/mins).
In addition, between the refrigerant compression pars intermedia of the compressor 1a in bathroom heating dried side refrigerant loop 41 and evaporimeter 5a and compressor 1a, be provided with capacity control drive 6, when supplying with the hot water running, close capacity control drive 6 in advance, when bathroom heating dry operating, open so that the middle refrigerant of compressor 1a is returned, thereby the adjustment refrigerant circulation alleviates the volume controlled of refrigerant compressive load.
That is, when supplying with hot water and bathtub supply hot water in the kitchen, revolution control running is all carried out with water for bathing side refrigerant loop 42 in bathroom heating dried side refrigerant loop 41.When the bathroom heating was dry, the volume controlled running was carried out in bathroom heating dried side refrigerant loop 41, stops water for bathing side refrigerant loop 42 in advance.In addition, water for bathing is mended when burning, and stops bathroom heating dried side refrigerant loop 41 in advance, and control water for bathing side refrigerant loop 42 makes it carry out revolution control running.
Have, the revolution when supplying with hot water is controlled at need can not needed than the summer of ability can be near 3000 rev/mins of middling speed greatly near at a high speed 7000 rev/mins than the winter of big ability again.
On the other hand, owing to come the dry operating that heats in requisition for the less bathroom of heat with the control revolution, therefore, also there is the situation of using 1 circulation and need turning round, disengaging or imbalance, the noise etc. of compression mechanical part might take place with the low speed about 1000 rev/mins.The present invention is essential bathroom heating when dry at slow speed for this reason, only the volume controlled running is carried out in bathroom heating dried side refrigerant loop 41.
Supply with hot water and possess refrigerant side heat-transfer pipe 3a, 3b and water supply side heat- transfer pipe 3c, 3d, between refrigerant side heat-transfer pipe 3a, 3b and water supply side heat- transfer pipe 3c, 3d, carry out heat exchange and constitute with heat exchanger 3.
Decompressor 4a, 4b, 4c generally use capillary or temperature-type expansion valve, electric expansion valve etc., to reducing pressure with heat exchanger 7, the dry middle temperature high pressure refrigerant of sending here with heat exchanger 8 of bathroom heating with heat exchanger 3, water for bathing, carry to evaporimeter 5a, 5b as evaporable low pressure refrigerant through supplying with hot water.In addition, the situation of heat pump for supply hot water machine, because decompressor 4a, 4b, the corresponding heating efficiency of 4c change the amount of restriction in the refrigerant passage, regulate the work of the refrigerant circulation in the heat pump circuit or open above-mentioned amount of restriction fully and to evaporimeter 5a, 5b carry a large amount of in warm refrigerant dissolve the effect that frost plays defroster, so electric expansion valve is suitable.
In addition, evaporimeter 5a, 5b constitute with the air refrigerant interchanger of the heat exchange of carrying out air and refrigerant.
Secondly, relevant supply with hot water, heating, the heat pump running when water for bathing is mended the burning running are described.
When supplying with the hot water running, turn round simultaneously in heating dried side refrigerant loop 41, bathroom and water for bathing side refrigerant loop 42, HTHP refrigerant with compressor 1a, 1b compression flows into refrigerant side heat-transfer pipe 3a, 3b by refrigerant switch valve 2a and refrigerant switch valve 2c, heating is flowing in the water supply among water supply side heat-transfer pipe 3c, the 3d, and the refrigerant that becomes low-temp low-pressure by decompressor 4a, 4b, evaporimeter 5a, 5b turns back among compressor 1a, the 1b.By this refrigerant circulation repeatedly, can heat continuously and supply water and supply hot water.
Have again, in the running of above-mentioned supply hot water, compressor 1a, 1b carry out corresponding supply water temperature and supply with the hot water temperature the load of supply hot water revolution control and turn round.
During bathroom heating dry operating, the bathroom heating dried side that only turns round refrigerant loop 41, HTHP refrigerant with compressor 1a compression flows into bathroom heating drying with among the refrigerant pipe 8a by refrigerant switch valve 2b, it is dry with the thermophore among the sparge pipe 8a that heating is flowing in the bathroom heating, and the refrigerant that becomes low-temp low-pressure by decompressor 4c, evaporimeter 5a turns back to compressor 1a.By this refrigerant circulation repeatedly, can heat bathroom heating drying continuously and use thermophore, heat.
Have again, during the dry operating that heats in above-mentioned bathroom, by the part of refrigerant is turned back between evaporimeter 5a and the compressor 1a and carries out volume controlled from the refrigerant compression pars intermedia of compressor 1a, reduce the refrigerant circulation in heat pump refrigerant loop, alleviate the load of compressor 1a, in slow speed (about 1000 rev/mins), also can obtain stable running.It is identical with the situation of main use functions/drying.This kind situation even if there is situation about turning round with the revolution of low speed (about 600~700 change) more, also can access stable running by volume controlled.
In addition, when water for bathing is mended burning, the water for bathing side that only turns round refrigerant loop 42, flow into water for bathing with refrigerant pipe 7a with the HTHP refrigerant of compressor 1b compression by refrigerant switch valve 2d, heating is flowing in the bath water among the water for bathing usefulness sparge pipe 7b, and the refrigerant that becomes low-pressure low-temperature by decompressor 4b, evaporimeter 5b turns back among the compressor 1b.By this refrigerant circulation repeatedly, Heating bath water carries out the benefit burning of water for bathing continuously.
Have again, mend at above-mentioned water for bathing and burn in the running, compressor 1b carry out corresponding bath water temperature and environment temperature etc. the load of supply hot water revolution control and turn round.
Secondly, supplying with hot-water return 45 possesses and is used to carry out the kitchen and supplies with hot water, bathtub and supply with hot water, water for bathing and mend the water-flow circuit that burns and constitute.
The kitchen is supplied with hot-water return and is connected water supply metalwork 10, pressure-reducing valve 11, water-supply quantity sensor 12, water successively by means of sparge pipe and go out hot water metalwork 19 and constitute with non-return valve 13, water supply side heat- transfer pipe 3c, 3d, supply hot water mixing valve 16, water supply mixing valve 17, flow rate regulating valve 18, kitchen.
Have, water supply metalwork 10 is connected on the watering of running water pipe etc. again, and the kitchen goes out hot water metalwork 19 and is connected on kitchen faucet 20 grades.
Water for bathing is supplied with hot-water return and is connected water supply metalwork 10, pressure-reducing valve 11, water-supply quantity sensor 12, water successively by means of sparge pipe and inject hot water valve 21, flow switch 22, water for bathing circulating pump 23, level sensor 24, pass in and out hot water metalwork 25 and constitute with non-return valve 13, water supply side heat- transfer pipe 3c, 3d, supply hot water mixing valve 16, water supply mixing valve 17, flow rate regulating valve 18, water for bathing.
Water for bathing mend to burn the loop and connects turnover hot water metalwork 25, level sensor 24, water for bathing circulating pump 23, flow switch 22, water for bathing successively by means of sparge pipe and go out hot water metalwork 28 with the water for bathing of heat exchanger 7 with sparge pipe 7b, water for bathing and constitute.
Have again, turnover hot water metalwork 25 is connected on the bathtub 27 by means of water for bathing circulation colligator 26, when water for bathing is supplied with hot water, supply with hot water, mend when burning, carry out the water circulation and constitute from bathtub 27 side direction level sensors 24 sides at water for bathing from level sensor 24 side direction bathtubs 27 sides.
In addition, when water for bathing is mended burning, running water for bathing circulating pump 23, carrying out mending the water that burns the bath water that the loop forms by above-mentioned water for bathing circulates, utilize heat pump running simultaneously to water for bathing side refrigerant loop 42 revolutions control, with water for bathing with the residual hot water of heat exchanger 7 Heating baths 27 and turn back to the benefit burning of carrying out water for bathing in the bathtub 27.
Secondly, heating dry operating in bathroom is by carrying out the volume controlled running of compressor 1a, and carry out the volume controlled in bathroom heating dried side refrigerant loop 41 is turned round, simultaneously, the heating of running bathroom is dry with circulating pump 9, by make bathroom heating dry with heated thermophore in the heat exchanger 8 at bathroom heating drying sparge pipe 8b, the bathroom heating is dry with supplying with hot water metalwork 29, the bathroom heating is dry with supplying with hot- water line 31a, 32a, the bathroom heating is dry with returning metalwork 30, the bathroom heating is dry with circulating pump 9, heating dry bathroom with sparge pipe 8b in bathroom heats and circulates in the dry loop, thermophore absorbs heat in sparge pipe 8b in that bathroom heating is dry, dry in the bathroom heating with supplying with hot-water line 31a, heat release among the 32a, it is dry to carry out the bathroom heating.
Secondly, running controlling organization 55 is the operating and settings that utilize kitchen remote controller 56 and water for bathing remote controller 57, and the running of carrying out thermal source loop 40 stops and compressor 1a, the revolution control of 1b, volume controlled, simultaneously by controlling the switch of refrigerant switch valve 2a~refrigerant switch valve 2d, decompressor 4a, 4b, the coolant throttle amount of 4c is adjusted, the bathroom heating is dry with circulating pump 9, the running of water tank circulating pump 15 and water for bathing circulating pump 23 stops and supplying with hot water mixing valve 16, water supply mixing valve 17, flow rate regulating valve 18, water for bathing injects hot water valve 21, so that supply with the hot water running, water for bathing injects running, water for bathing is mended and is burnt running, bathroom heating dry operating etc.
In addition, running controlling organization 55, its control is as follows: control the revolution of compressor 1a, 1b, therefore use the high speed revolution running of being scheduled to owing to will accelerate to heat the time of finishing after the beginning of just turning round, when the lighter water for bathing of relatively hot load is mended the burning running, use the low speed revolution running that conforms to heating-up temperature.
Have again, on the heat pump for supply hot water machine, be provided with: the water supply thermistor of surveying supply water temperature; Survey and supply with the heat exchange thermistor that go out hot water temperature of hot water with interchanger 3; Survey the supply hot water thermistor of supplying with the hot water temperature; Survey the water for bathing thermistor of bath water temperature; Detect the pressure sensor (above any one all not shown) of the discharge pressure of compressor 1a, 1b; And the level sensor 24 of detection bathtub 27 interior water levels etc., each detection signal constitutes by being input in the running controlling organization 55.Running controlling organization 55 is based on each machine of these signal controlling.
In addition, priority when setting causes heating efficiency not enough owing to use when using terminal on running controlling organization 55, under the situation that the use of supply hot water, the dry use of bathroom heating or water for bathing benefit burning are carried out simultaneously, make and supply with the hot water running preferentially, carrying out under the situation that kitchen supply hot water uses and water for bathing supply hot water uses, making the running of kitchen supply hot water preferentially.
Secondly, the high hydraulic pressure with fluctuation of 200~600kPa that pressure-reducing valve 11 for example will be supplied with from the running water pipe of watering is controlled to be certain hydraulic pressure of the suitable use about about 170kPa, and water makes water only to a direction circulating water with non-return valve 13, prevents adverse current.
Secondly, with reference to heat pump circuit 40 and the supply hot-water return 45 of Fig. 1, simultaneously,, the running action of relevant heat pump for supply hot water machine of the present invention is described based on the flow chart of Fig. 2~Fig. 6.One embodiment of the flow process of necessary operation when Fig. 2 is the expression installation.
The heat pump for supply hot water machine is taken out of and is installed in the place that is provided with that the user wishes from manufacturing site location, water supply metalwork 10 is connected on the watering of running water pipe etc., the kitchen goes out hot water metalwork 19 and is connected on the kitchen faucet 20, turnover hot water metalwork 25 and water for bathing go out hot water metalwork 28 and are connected on the water for bathing circulation colligator 26 (step 60) afterwards, for removing air, and make kitchen faucet 20 (step 61), if open the master switch (step 62) of watering, begin water supply in the machine from watering, water is depressurized valve 11 decompressions and is adjusted into after the certain pressure, flows into hot water with in interchanger 3 and each sparge pipe (step 63).Overflow according to the water from kitchen faucet 20, water loop has been in the full state (step 64) of water afterwards in the affirmation machine, closes kitchen faucet 20, and (step 65) supplies water in the Machine for tying filamentary material.
Have, each machine when the heat pump for supply hot water machine is installed is set at following original state again.That is, supply with hot water mixing valve 16 and water supply mixing valve 17 and be in three direction open modes, flow rate regulating valve 18 is in full-gear, and water for bathing injects hot water valve 21 and is in full closing state.
Secondly, connect power switch (step 66), carry out bath water and inject running (step 67).
Bath water injects running, it carries out as follows: open water for bathing and inject hot water valve 21 and carry out water filling and will overflow bathtub 27 up to water, and the water that carries out bathtub 27 is completely judged (step 68), by the water level and the water yield in level sensor 24 or the water-supply quantity sensor 12 detection bathtubs 27, running controlling organization 55 calculates the entire capacity of bathtub 27 and the relation (step 69) of the water yield and height of water level automatically, carry out the suitable water yield of bathtub and because of appending the setting (step 70) of the water level variable that the water yield causes, use flexibly set later water for bathing automatically the water for bathing in the running inject or the hot water amount control of water for bathing when emitting etc.Therefore, above-mentioned water for bathing injects and operates at when the heat pump for supply hot water machine is set and must set once.
Secondly, Fig. 3 is that the embodiment that kitchen faucet 20 is used motion flow when supplying with hot water is opened in expression.
Open kitchen faucet 20 and bring into use hot water (step 71), then water-supply quantity sensor 12 is surveyed flow, supply with the judgement (step 72) that hot water begins, if flow is more than necessarily, judge that then supplying with hot water begins, running controlling organization 55 makes compressor 1a, 1b starts working, beginning heat pump running (step 73) utilizes water supply metalwork 10, pressure-reducing valve 11, water-supply quantity sensor 12, water non-return valve 13, water supply side heat- transfer pipe 3c, 3d, supply with hot water mixing valve 16, water supply mixing valve 17, flow rate regulating valve 18, the kitchen goes out hot water metalwork 19, the supply hot-water return of kitchen faucet 20 begins to supply with hot water (step 74).
Here, running controlling organization 55 usefulness revolutions control running compressor 1a, 1b, make the HTHP refrigerant circulation after the compression, simultaneously, open thermal source loop 40 refrigerant switch valve 2a and refrigerant switch valve 2c, close refrigerant switch valve 2b and refrigerant switch valve 2d, so that carry out the refrigerant circulation in interchanger 3, but do not carry out refrigerant in heat exchanger 8 and circulate in that water for bathing is dry with heat exchanger 7 and bathroom heating at hot water.In addition, open and adjust decompressor 4a, 4b, close decompressor 4c.
Promptly, to send into the HTHP refrigerant of compressor 1a, 1b compression and supply with hot water with among refrigerant side heat-transfer pipe 3a, the 3b of interchanger 3, heating is flowing in the water supply among water supply side heat-transfer pipe 3c, the 3d and goes out to hot water mixing valve's 16 effluents, running is sent into supply hot water and is not completed into HTHP with the refrigerant in the interchanger 3 when just having finished, temperature is low, and it is cool with interchanger 3 integral body to supply with hot water, and the heating efficiency that therefore adds hot water is also inadequate.Along with the past refrigerant of time becomes HTHP, accompany with it, increase from the thermal discharge that refrigerant takes place, slowly increase heating efficiency to water, from this running beginning when supplying with running that the hot water temperature reaches proper temperature (about 40 ℃) and finish, emit the hot water of the above temperature of proper temperature that is stored in advance in the hot water water storage tank, with supply hot water mixing valve 16 and from water supply side heat-transfer pipe 3c, the hot water of 3d mixes, form the above high-temperature water of proper temperature, have again, with the water supply mixing valve 17 an amount of cold water that mix from water-supply quantity sensor 12 sides, after the furnishing serviceability temperature, by flow rate regulating valve 18, the kitchen goes out hot water metalwork 19 and supplies with hot water to kitchen faucet.
In above-mentioned supply hot water running, together turn round in heating dried side refrigerant loop 41, bathroom and the water for bathing side refrigerant loop of Fig. 1, compressor 1a, 1b carry out revolution control like that by the running controlling organization shown in Fig. 4 (a), in the high summer of supplying with from the running water pipe at water source etc. of supplying temperature, owing to just can finish with the less heat that adds, therefore shown in the B point, reduce revolution, in supply water temperature low winter, owing to need heat more greatly, therefore shown in the C point, increase the revolution running.
Store in the hot-water type heat pump for supply hot water machine existing,, store high-temperature-hot-water in advance with 2000~3000 transhipment rotary compressors.When using geothermal heating system, make the hot water circuit that is stored in the water tank, carry out geothermal heating system, compressor does not turn round.
But the moment formula heat pump for supply hot water machine of present embodiment use to be supplied with the compressor revolution running of hot water load with correspondence, supplies with hot water as the moment boiling device.If as existing the storage the hot-water type heat pump for supply hot water machine, dry to carry out the bathroom heating with the hot water in the water tank constantly dry in the bathroom heating, then efficient reduces, and in the moment formula, the compressor that also turns round when bathroom heating drying makes the efficient raising.Therefore, as bathroom heating when dry the situation of underload (temperature difference such as above-mentioned for example 10 ℃ and little), must low-speed running, carry out volume controlled as its countermeasure.
Compressor revolution when Fig. 4 (b) represents with revolution control and volume controlled compressor operation and the relation of heating efficiency are arranged again.When bathroom heating dry operating, as described in just now, the heating dry temperature difference of sending and returning with thermophore in bathroom is about 10 ℃, therefore carry out corresponding situation with revolution control running and have the very situation of low speed, may cause disengaging etc., therefore in the present invention, shown in A point, turn round even if carry out the volume controlled that low speed also can steady running.
Promptly, in Fig. 1, the bathroom heating dried side that only turns round refrigerant loop 41, compressor operation, opening capacity control drive 6 simultaneously makes refrigerant turn back between evaporimeter 5a and the compressor 1a from the intermediate pressure department of compressor 1a, reduce refrigerant circulation and adjust heating efficiency, the load that alleviates compressor simultaneously can continue stable running.
Turn back to Fig. 3, after the above-mentioned supply hot water running beginning (step 74), detection data based on water-supply quantity sensor 12, water supply thermistor, supply hot water thermistor etc., running controlling organization 55 is supplied with the adjustment (step 75) of hot water temperature and flow, continues proper temperature, the suitably supply hot water running of flow.
Have again, supply with the judgement (step 76) of hot water temperature and flow often,, till closing tap, continue to supply with hot water (step 77) if in regulation.
Finish to use hot water (step 78) if close kitchen faucet 20, the controlling organization 55 that then turns round stops compressor 1a, 1b (step 79), finishes running (step 80).
Fig. 5 represents to utilize a water for bathing embodiment of the injection hot water motion flow of running automatically.Press the water for bathing automatic button in advance and make it be in ON state (step 91), set constantly, then begin water for bathing and inject running (step 92), open water for bathing and inject hot water valve 21, carry out water for bathing and supply with hot water (step 93) if arrived.
This water for bathing is supplied with hot water (step 93) and supply hot water use carrying out the equally heat pump running that illustrates with Fig. 3, utilizes above-mentioned water for bathing to supply with hot-water return, replaces kitchen faucet 20, to bathtub 27 supply hot water.
In addition, supply with in the hot water running at water for bathing, use the water for bathing thermistor to survey water for bathing and supply with the hot water temperature and judge supply hot water temperature's (step 94), if beyond regulation, then carry out temperature adjustment (step 94a), if at the supply hot water (step 95) of regulation with interior continuation water for bathing.
Have again,, judge water for bathing injection rate (step 96) with the water level that level sensor 24 detects in the bathtub.
In this water for bathing injection rate is judged (step 96), supply with hot water (step 95) when continue water for bathing beyond the regulation,, stop water for bathing and supply with hot water (step 97) if reach in the regulation, stop compressor 1a, 1b (step 98), inject running (step 99) thereby finish water for bathing.
Fig. 6 represents to utilize a water for bathing embodiment of the water for bathing benefit burning flow process of running automatically.Pressing the water for bathing automatic button in advance makes it be in ON state (step 100), set constantly if arrived, the water for bathing that then begins as described in Figure 5 injects running (step 101), injects running (step 102) if finish water for bathing thereafter, then begins water for bathing insulation running (step 103).
After water for bathing insulation running beginning (step 103), survey the hot water temperature with the water for bathing thermistor, in judging bathtub among hot water temperature's (step 104), if in setting, then continue the insulation water for bathing, the situation below setting is carried out water for bathing and is mended burning running (step 105).In addition, the hot water amount who surveys in the bathtub with level sensor 24 every the scheduled time (for example 10 minutes) judges in (step 106) in the water for bathing injection rate, if then continue the insulation water for bathing in setting, situation below setting is carried out water for bathing and is added hot water running (step 107).
Have again,, then finish water for bathing insulation running (step 108), turn round automatically end (step 109) of water for bathing if crossed the water for bathing setting-up time of running automatically.
The foregoing description has illustrated the situation that is applicable to the direct supply hot-water type heat pump mode with hot water water storage tank, but also applicable and have a same effect in not having the direct supply hot-water type heat pump mode of hot water water storage tank.
Below, utilize Fig. 7 that the second embodiment of the present invention is described.
In Fig. 7, the member different with Fig. 1 has three: the water for bathing heating sparge pipe 37a of heat exchanger 37 heated side; Switch to above-mentioned heating with sparge pipe 37a flow add hot water add hot-water switch valve 35; And survey and supply with the heat exchange flow sensor 36 of hot water with heat exchanger 3 flows.
In Fig. 7, be with the difference of first embodiment that illustrates with Fig. 1, water for bathing is replaced into heating sparge pipe 37a with the water for bathing of heat exchanger 7 heated side with refrigerant pipe 7a, and this heating is flowed with sparge pipe 37a to be had by means of adding hot-water switch valve 35 from supplying with the hot water warm water of water supply side heat-transfer pipe 3c, the 3d inflow that heat exchanger 3 heats.
In addition, its purpose and effect are, by water for bathing shown in Figure 1 is replaced into heating sparge pipe 37a with the water for bathing of heat exchanger 7 with refrigerant pipe 7a, so that avoid at the water for bathing high pressure refrigerant that flows in the heat exchanger 37, therefore realize the miniaturization of water for bathing when realizing heating with heat exchanger 37 with sparge pipe 37a thin-wall light-weighted, water for bathing is made the double-sleeve structure side with heat exchanger 37 integral body becomes possibility, can realize miniaturization and, reduce cost etc.
In addition, it is only open when water for bathing is mended the burning running to add hot-water switch valve 35, goes into heating with among the sparge pipe 37a from the flow heated water of water supply side heat- transfer pipe 3c, 3d, can heat the bath water that is flowing among the water for bathing water pipe arrangement 37b.
Have, heat exchange is surveyed with flow sensor 36 and is supplied with the flow of hot water with heat exchanger 3 again, carries out more trickle running control, therefore also is suitable in first embodiment.
Second embodiment is in above structure, and heat pump turns round, supply hot water turns round, the bathroom heats dry operating, reach the water for bathing injection, action, the effect identical with first embodiment are all carried out in the automatic running of water for bathing, can obtain equal effect.

Claims (6)

1. bathroom heating and drying device with heat pump for supply of hot water, it is characterized in that, possess: the thermal source loop, it is by constituting with interchanger, the dry heat pump refrigerant loop that constitutes with heat exchanger, decompressor, evaporimeter of bathroom heating with compressor, refrigerant switch valve, supply hot water; Supply with hot-water return, it adds the water of heat supply and supplies with hot water; And the dry loop of heating, bathroom, the thermophore of its heat cycles is also supplied with heat,
Have the running controlling organization, it is being supplied with to above-mentioned supply hot-water return when hot, and above-mentioned compressor is carried out revolution control, supplies with in the dry loop of heating to above-mentioned bathroom when hot, and above-mentioned compressor is carried out volume controlled.
2. bathroom heating and drying device with heat pump for supply of hot water according to claim 1, it is characterized in that, above-mentioned heat pump refrigerant loop possesses the capacity control drive between refrigerant compression pars intermedia, above-mentioned evaporimeter and the above-mentioned compressor of above-mentioned compressor, when the revolution control of above-mentioned compressor, close above-mentioned capacity control drive in advance, when volume controlled, open.
3. bathroom heating and drying device with heat pump for supply of hot water according to claim 1, it is characterized in that, constitute above-mentioned thermal source loop with a plurality of heat pump refrigerants loop, a plurality of heat pump refrigerants loop of when supplying with hot water, turning round, the independent heat pump refrigerant loop of running when the bathroom heating is dry.
4. bathroom heating and drying device with heat pump for supply of hot water according to claim 3, it is characterized in that, constitute above-mentioned thermal source loop with two heat pump refrigerant loops that have volume control function and do not have a volume control function, two heat pump refrigerant loops of running when supplying with hot water, the heat pump refrigerant loop of only turning round and not having volume controlled when burning is mended at water for bathing in the heat pump refrigerant loop of only turning round and having volume controlled when the bathroom heating is dry.
5. bathroom heating and drying device with heat pump for supply of hot water according to claim 1, it is characterized in that, above-mentioned running controlling organization uses with the bathroom heating is dry and uses or water for bathing is mended to burn and used when carrying out simultaneously supplying with hot water, makes and supplies with the preferential revolution control of hot water running.
6. bathroom heating and drying device with heat pump for supply of hot water according to claim 1 is characterized in that, above-mentioned supply hot-water return has: supply with hot-water return from the hot water water storage tank to the water tank that uses terminal to supply with hot water; And will be with supplying with hot water extremely directly uses terminal with the hot water supply of heat exchanger heats direct supply hot-water return.
CN 200610115475 2005-08-11 2006-08-10 Bathroom heating and drying device with heat pump for supply of hot water Pending CN1912492A (en)

Applications Claiming Priority (2)

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JP2005232729 2005-08-11
JP2005232729A JP4231863B2 (en) 2005-08-11 2005-08-11 Heat pump water heater bathroom heating dryer

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JP2015155765A (en) * 2014-02-20 2015-08-27 パナソニックIpマネジメント株式会社 heat pump water heater
CN111235847A (en) * 2018-11-29 2020-06-05 青岛海尔滚筒洗衣机有限公司 Control method of clothes drying equipment and clothes drying equipment
CN110906588A (en) * 2019-10-29 2020-03-24 青岛海尔新能源电器有限公司 Micro-channel heat exchanger, heat pump water heater and control method thereof
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CN114396762A (en) * 2022-01-19 2022-04-26 中国科学院理化技术研究所 Closed heat pump drying system

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