CN1912476A - Floor heating system employing heat pump for supplying hot water - Google Patents

Floor heating system employing heat pump for supplying hot water Download PDF

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Publication number
CN1912476A
CN1912476A CN 200610008344 CN200610008344A CN1912476A CN 1912476 A CN1912476 A CN 1912476A CN 200610008344 CN200610008344 CN 200610008344 CN 200610008344 A CN200610008344 A CN 200610008344A CN 1912476 A CN1912476 A CN 1912476A
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CN
China
Prior art keywords
water
hot
heat pump
water supply
loop
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.)
Pending
Application number
CN 200610008344
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Chinese (zh)
Inventor
店纲太一
权守仁彦
向井有吾
幸野雄
小山昌喜
增田正
水谷圭一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kansai Electric Power Co Inc
Hitachi Appliances Inc
Original Assignee
Kansai Electric Power Co Inc
Hitachi Appliances Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to JP2005233015A priority Critical patent/JP4726573B2/en
Priority to JP2005233015 priority
Application filed by Kansai Electric Power Co Inc, Hitachi Appliances Inc filed Critical Kansai Electric Power Co Inc
Publication of CN1912476A publication Critical patent/CN1912476A/en
Pending legal-status Critical Current

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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
    • Y02B30/123

Abstract

The problem to be solved in the invention is that, although a direct hot-water supply type is being considered in order to reduce size and weight in a heat pump hot-water supply floor heating device having a floor heating function at the same time, the difference between necessary heating capability in a hot-water supply operation and that in a floor heating 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 floor heating operation. This heat pump hot-water supply floor heating device of the invention is solved the conventional problem by executing a heat pump operation in using hot water, by adding a floor heating 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

Floor heating system employing heat pump for supplying hot water
Technical field
The present invention relates to floor heating system employing heat pump for supplying hot water, a kind of excursion that can enlarge compressor capacity especially is provided, can correspondingly realizes running to the floor heating system employing heat pump for supplying hot water that the floor of finishing with low capacity adds heat run with high running efficiency from the jumbo hot-water supply of needs.
Background technology
In recent years, be accompanied by popularizing of heat pump for supplying hot water machine, proposed to have the technical scheme of floor heating function.
As such heat pump for supplying hot water machine, for example disclosed machine in patent documentation 1-TOHKEMY 2003-247753 communique is arranged.This machine carries out the heat pump running cheap night in the electricity charge in advance, makes the hot water boiling and is stored in the hot-water storage jar, uses the hot water of storing in the hot-water storage jar as required, emits hot water and use from tap, and hot water circuit is heated the floor.
Usually, with the hot-water storage temperature be 60-90 ℃ opposite, the temperature of emitting the hot water use from tap is about 40 ℃, and the circulating hot water temperature the when floor heated is about 55-60 ℃, emitting from tap under hot water or any situation to the floor heating, serviceability temperature is all low than storing the hot water temperature, need replenish water supply when emitting the hot water use from tap, when the floor is heated, need to be blended into carrying out the temperature adjustment in the hot water that returns after the heating of floor with storing hot water.
For heat pump for supplying hot water machine with above-mentioned existing floor heating function, need the such jumbo hot-water storage jar of 400L-600L, under the situation of the full hot water of hot-water storage jar storage, because only the hot water amount just reaches 400kg-600kg, thereby heat pump unit and hot-water storage jar unit need be set separately separately, it is big and need carry out the connection etc. of water pipe in the field operation mode between heat pump unit and hot-water storage jar unit that area and installation workload are set, and has variety of problems aspect the construction being provided with.
In addition,, under the big situation of the hot water use amount in a day, hot water that the hot-water storage jar stores might occur and use and be over, and can not supply with awkward situation such as bathing water owing to reasons such as weather and guests.
Especially in the winter time, because hot water amount from the tap supply, the various hot water use amounts such as use amount that heat with hot water for the hot water use amount and the floor of bathing water's supplementary heating all increase, thereby deficiency appears in hot water amount in the hot-water storage jar easily, need to strengthen the capacity of hot-water storage jar, cause its capacity cushion except that winter.
Have again, owing to have the floor heating function, needed hot water supply has very big-difference because of differences such as family compositions, as the more family of floor heating function that uses the heat-pump hot water supply machine, the hot water amount that hold-up tank is stored presents deficiency, and less use the family of the floor heating function of heat-pump hot water supply machine as using other heating equipment, then the hot-water storage jar arrive greatly again above needs.
In addition, when carrying out the hot-water storage running in the winter time, owing to the water about 10 ℃ will be heated to 60 ℃-90 ℃, though need the heating efficiency that improves 50 ℃-80 ℃ of temperature, but when adding heat run on the floor, as long as owing to make in case the circulation of warmed-up water, then only chilled part in the circulation is heated and get final product, for example, under situation to the floor heating, owing to carry 55 ℃-60 ℃ hot water that the floor is heated, and the temperature of returning hot water reaches about 45 ℃-50 ℃, thereby heating efficiency needs only about less 10 ℃ just enough.Therefore, carry out hot-water supply when running in the winter time, need make compressor, and when adding heat run, compressor is turned round with slow speed (for example 1000 rev/mins) on the floor with high revolution (for example 7000 rev/mins) running.And, the requirement when though compressor design Cheng Yiqi maximum capacity can satisfy hot-water supply, but when adding heat run owing to the floor when environment temperature is high is low-speed running, thereby, become that the turbo-compressor structure produces that the ability that causes because of abnormal conditions such as disengagings, imbalances extremely reduces or the main cause of abnormal conditions such as noise, and might make the reliability reduction.
Promptly, the difference of needed heating efficiency is very big when heating owing to needed heating efficiency when hot-water supply turns round with to the floor, can not satisfy its requirement by existing compressor rotary speed control, when adding the low-speed running of heat run on the floor, might produce the disengaging or the problems such as imbalance, noise of compression mechanical part.
On the other hand, from energy-conservation viewpoint, heat pump operates at supply water temperature one regularly, because it is low more that high more its running efficiency of hot water temperature is emitted in heating, thereby, under the high condition of hot-water storage temperature, all is under running efficiency low condition to carry out heat pump running from leading hot-water supply, to the floor heating with respect to serviceability temperature.
Have again, a large amount of high-temperature-hot-waters is arranged, thereby the energy loss that causes because of heat radiation also is a big problem owing in the hot-water storage jar, store.
Summary of the invention
The objective of the invention is to, for the reliability of heat-pump hot water supply machine raising when the floor is heated that has concurrently the floor heating function.
The floor heating system employing heat pump for supplying hot water that the present invention provides as the means of the problem of the hot-water storage type heat pump for supplying hot water machine with floor heating function that solves above-mentioned prior art, it does not carry out the heat pump running in advance at night, but when using hot water, carry out the heat pump running, when warmed-up water is increased the floor heating function on directly to the direct hot-water supply formula heat pump for supplying hot water machine that uses terminal provisioning hot water, control method as compressor is controlled and volume controlled by using revolution respectively effectively, thereby has solved the problem that prior art exists.
The floor heating system employing heat pump for supplying hot water of the present invention's first scheme, have: the thermal source loop that the heat pump refrigerating agent loop that is made of with heat exchanger, decompressor, evaporimeter with heat exchanger, floor heating compressor, cold-producing medium switch valve, hot-water supply constitutes, the water that heating is supplied and the hot-water supply loop of hot-water supply, the floor heating circuit of the thermophore of heat cycles and heat supply; It is characterized in that: have the time, above-mentioned compressor is carried out revolution control the heat supply of above-mentioned hot-water supply loop; To the heating circuit heat supply of above-mentioned floor the time, above-mentioned compressor is carried out the operation controller of volume controlled, owing to do not need jumbo hot-water storage jar, so at the miniaturization and that can realize product, can improve significantly when execution conditions are set, can eliminate the heat that hot water interrupts and reduces to distribute from the hot-water storage jar.In addition, owing to can make the hot water temperature that heat pump when running emit after heating consistent with the hot water temperature of various uses respectively, thereby, can corresponding raising use the hot water temperature to be lower than the running efficiency of the hot-water storage temperature section of prior art.
And then, because the volume controlled when control of the revolution the when control of compressor is adopted high load capacity respectively and underload, thereby, but can enlarge the excursion of the heating efficiency of compressor, and the disengaging of the compression mechanical part when eliminating because of low load operation, performance that imbalance causes reduces and prior art problems such as noise, and can satisfy effectively from the hot-water supply in needs jumbo winters and run to the requirement that floor that low capacity gets final product adds heat run.In addition, adopt the present invention, can improve the reliability of the floor heating system employing heat pump for supplying hot water of direct hot-water supply formula, and can realize miniaturization and.
The floor heating system employing heat pump for supplying hot water of alternative plan of the present invention, on the basis of first scheme, above-mentioned heat pump refrigerating agent loop has capacity control drive between the cold-producing medium of above-mentioned compressor compression mid portion and above-mentioned evaporimeter and above-mentioned compressor, above-mentioned capacity control drive is closed when above-mentioned compressor is carried out revolution control in advance, and when carrying out volume controlled, open, so, in existing compressor arrangement, utilization is outlet in the middle of the mid portion of cold-producing medium compression is provided with, and connection has the simple mechanism of the capacity control drive of switching function, just can realize the volume controlled of compressor, thereby realize just can improving the running efficiency of floor when adding heat run with low capacity.In addition, owing to just alleviated the cold-producing medium compression load of compressor, thereby can eliminate the problems such as disengaging, imbalance, noise of the turbine mechanism that low-speed running causes by volume controlled.In addition, adopt this structure, need not to develop the new type compressor that is built-in with new capacity control mechanism, thereby can realize the saving of compressor development cost and the raising of reliability.
The floor heating system employing heat pump for supplying hot water of third party's case of the present invention, on the basis of first scheme, above-mentioned thermal source loop is made of a plurality of heat pump refrigerating agent loop, when hot-water supply turns round, the running of a plurality of heat pump refrigerating agent loop, when the floor adds heat run, independent heat pump refrigerating agent loop running.Therefore, the scope of hot-water supply ability further enlarges, and runs to from needs hot-water supply in jumbo winter and to add heat run with low capacity with regard to the floor that can satisfy and can both carry out optimum operation.
In addition, by using a plurality of heat pump refrigerating agent loop when the jumbo hot-water supply of needs, and when the heating of the floor that gets final product with low capacity, use independent heat pump refrigerating agent loop, can carry out the optimum operation consistent, thereby effect such as can obtain successfully to control, energy-conservation with purposes.
The floor heating system employing heat pump for supplying hot water of the cubic case of the present invention, on the basis of third party's case, above-mentioned thermal source loop is by the heat pump refrigerating agent loop with volume control function and do not have two heat pump refrigerating agent loop, heat pump refrigerating agent loop of volume control function to constitute; When hot-water supply turns round, all turn round in two heat pump refrigerating agent loops; When the floor adds heat run, only has the heat pump refrigerating agent loop running of volume controlled; When the water for bathing supplementary heating, have only and do not have the running of the heat pump refrigerating of volume controlled agent loop.Because carrying out the compressor of volume controlled only gets final product with one, thereby reduced once and invested, and two heat pump refrigerating agent loops be used to effectively satisfy hot-water supply load and ease of use good in, because being used in the floor respectively, two heat pump refrigerating agent loops add heat run and water for bathing supplementary heating running, thereby, can realize the balance of the duration of runs and improve reliability of service life.
The floor heating system employing heat pump for supplying hot water of the present invention's the 5th scheme, on the basis of first scheme, above-mentioned operation controller carry out at the same time hot-water supply with and floor heating with or the water for bathing supplementary heating time spent, preferentially carry out the revolution of hot-water supply running and control.For example, in the heating process of floor, when carrying out the cleaning of tableware with the Kitchen tap hot-water supply, because the kitchen hot-water supply is preferential, thereby, cleaning can not influenced to tableware, in time a few minutes of wash dishes, though the situation that has reduced the floor heating efficiency is also arranged, because of the temperature difference of thermophore before and after the heating of floor of circulation just had only about 10 ℃ originally, thereby influence is very little.Have again, when the water for bathing supplementary heating, carry out under the situation of cleaning of tableware,, and can reduce influence though the situation that exists the water for bathing supplementary heating to postpone becomes the situation of cold water when having prevented to clean tableware at the Kitchen tap hot-water supply.In addition, in the supply bathing water, when utilizing the Kitchen tap hot-water supply to carry out the cleaning of tableware,,, we can say that influence is very little though also there is water for bathing will prolong situation about 5 minutes heat time heating time because the kitchen hot-water supply is preferential.
Like this, when using simultaneously under the situation that the heating efficiency deficiency occurs owing to the heating of hot-water supply and floor or water for bathing supplementary heating, by adopting kitchen hot-water supply override, the influence to other can be reduced to Min., thereby can improve the convenience of use.
The floor heating system employing heat pump for supplying hot water of the present invention's the 6th scheme, on the basis of first scheme, above-mentioned hot-water supply loop have from the hot-water storage jar to the hold-up tank hot-water supply loop of using terminal provisioning hot water and will be by hot-water supply with the hot water of heat exchanger heating directly to using the direct hot-water supply loop of terminal provisioning hot water.In the hot-water storage jar, always stored hot water in advance, when hot-water supply, utilize the hold-up tank hot-water supply to remedy the deficiency of the heating efficiency after the heat pump running has just begun, when the heating efficiency of heat pump running reaches the proper temperature (about 40 ℃) of hot-water supply, only switch to directly hot-water supply by stopping the hold-up tank hot-water supply, the temperature rise time in the time of then can realizing shortening hot-water supply with the hot-water storage storage of low capacity.
In addition, be set in the low terminal serviceability temperature (about 40 ℃) of hot water temperature's (about 65 ℃) of storing, can improve the efficient that adds heat run than hold-up tank by the hot water temperature after the heat pump running is stable.
According to the present invention, can improve the reliability of floor when adding heat run.
Description of drawings
Fig. 1 is the schematic diagram of an embodiment of general configuration of heat pump refrigerating agent loop, hot-water supply loop, floor heating circuit, operation controller and parts of the floor heating system employing heat pump for supplying hot water of the expression first embodiment of the present invention.
Fig. 2 is the flow chart of an embodiment of expression installation of floor heating system employing heat pump for supplying hot water of the present invention and the pipeline affirmation process when connecting.
Fig. 3 be expression floor heating system employing heat pump for supplying hot water of the present invention to the kitchen hot-water supply time the flow chart of an embodiment of process.
Fig. 4 is illustrated in the floor heating system employing heat pump for supplying hot water of the present invention, the service performance figure of an embodiment of the rotating speed of the compressor when revolution control and volume controlled and the relation of heating efficiency.
Fig. 5 is the flow chart of an embodiment who passes through the automatic process when making bathing water's filling bathtub that turns round of water for bathing of expression floor heating system employing heat pump for supplying hot water of the present invention.
Fig. 6 is the flow chart of an embodiment of the water for bathing of expression floor heating system employing heat pump for supplying hot water of the present invention process when automatically the bathing water of running is incubated.
Fig. 7 is the schematic diagram of an embodiment of general configuration of heat pump refrigerating agent loop, hot-water supply loop, floor heating circuit, operation controller and parts of the floor heating system employing heat pump for supplying hot water of the expression second embodiment of the present invention.
The specific embodiment
Embodiment 1
Below, according to Fig. 1-Fig. 6 the first embodiment of the present invention is described.
Among Fig. 1, the structure of floor heating system employing heat pump for supplying hot water has: the thermal source loop 40 that is made of the heat pump refrigerating agent loop of floor heated side refrigerant loop 41 and water for bathing side refrigerant loop 42 these two systems, hot-water supply loop 45, as the floor heating of the component parts of floor heating circuit 50 with heat exchanger 8 and operation controller 55.
Above-mentioned thermal source loop 40, hot-water supply loop 45 and floor heating are contained in the same casing with heat exchanger 8 with becoming one, and operation controller 55 is made of the kitchen remote controller 56 and the water for bathing remote controller 57 that are provided with separately in addition.
In addition, as the floor heating device 31,32 of the component parts of above-mentioned floor heating circuit 50 just as the floor heat with distribution board, separate setting separately with floor heating system employing heat pump for supplying hot water, utilize the floor heating to return handware 30 with hot water and be connected with floor heating system employing heat pump for supplying hot water to use with hot-water supply handware 29 and floor heating.
Thermal source loop 40 is the equipment that the heating source during as hot-water supply, to floor heating and to the water for bathing supplementary heating plays a role, and adopts floor heated side refrigerant loop 41 and water for bathing side refrigerant loop 42 this double-circulating heat pump modes.Floor heated side refrigerant loop 41 is by being connected with compressor 1a, cold-producing medium switch valve 2a by water pipe in turn, being disposed at hot-water supply and being connected with compressor 1a, cold-producing medium switch valve 2b in turn, being disposed at the floor heating and constituting with the loop of the heating of the floor on the heat exchanger 8 with refrigerant pipe 8a, decompressor 4c, evaporimeter 5a with the loop of refrigerant side heat-transfer pipe 3a, decompressor 4a on the heat exchanger 3, evaporimeter 5a with by water pipe; Water for bathing side refrigerant loop 42 is by being connected with compressor 1b, cold-producing medium switch valve 2c by water pipe in turn, being disposed at refrigerant side heat-transfer pipe 3b, decompressor 4b on the hot-water supply usefulness heat exchanger 3, the loop of evaporimeter 5b and be connected with compressor 1b, cold-producing medium switch valve 2d in turn, be disposed at water for bathing and constitute with the loop of the water for bathing on the heat exchanger 7 with refrigerant pipe 7a, decompressor 4b, evaporimeter 5b by water pipe.Cold-producing medium is encapsulated in these loops, and the switching of the refrigerant flow path between the loop is undertaken by making cold-producing medium switch valve 2a, 2b, 2c, 2d switch.
Compressor 1a, 1b can be applicable to the such jumbo compressor of direct hot-water supply formula heat pump for supplying hot water machine, and are the revolution control formula compressors that can change revolution according to the hot-water supply amount.That is, compressor 1a, 1b control by PWM, and Control of Voltage (for example PAM control) and their combination are carried out from low speed (for example 1000 rev/mins) to the revolution control of (for example 7000 rev/mins) at a high speed.
In addition, between the cold-producing medium compression mid portion of the compressor 1a of floor heated side refrigerant loop 41 and evaporimeter 5a and compressor 1a, capacity control drive 6 is set, by closing capacity control drive 6 when the hot-water supply in advance, when the floor adds heat run, open this valve and the intermediate refrigerant of compressor 1a is returned, just can adjust, alleviate the volume controlled running of cold-producing medium compression load circulating mass of refrigerant.
That is, under kitchen hot-water supply and supply bathing water's situation, floor heated side refrigerant loop 41, water for bathing side refrigerant loop 42 all carry out revolution control running.Under the situation of floor heating, floor heated side refrigerant loop 41 carries out the volume controlled running, and water for bathing side refrigerant loop 42 stops in advance.In addition, under the situation of water for bathing supplementary heating, floor heated side refrigerant loop 41 is stopped in advance, water for bathing side refrigerant loop 42 is controlled, make it carry out revolution control running.
In addition, the control of revolution during hot-water supply is near being set at a high speed 7000 rev/mins the winter of the big ability of needs, near being set in 3000 rev/mins of middling speeds the summer that does not need big ability.
On the other hand, add heat run, need to use a circulation sometimes, and turn round, then might produce disengaging, imbalance, noise of compression mechanical part etc. with the low speed about 1000 rev/mins in order to control the few floor of the heat of satisfying the demand with revolution.Therefore, the present invention carries out floor when heating of low-speed running at needs, then only floor heated side refrigerant loop 41 is carried out the volume controlled running.
Hot-water supply has refrigerant side heat-transfer pipe 3a, 3b and water supply side heat-transfer pipe 3c, 3d with constituting of heat exchanger 3, and carries out heat exchange between refrigerant side heat-transfer pipe 3a, 3b and water supply side heat-transfer pipe 3c, 3d.
Decompressor 4a, 4b, 4c use capillary or temperature-type expansion valve, electric expansion valve etc. usually, after the middle temperature high-pressure refrigerant of bringing with heat exchanger 8 with heat exchanger 7, floor heating with heat exchanger 3, water for bathing through hot-water supply reduced pressure, deliver to evaporimeter 5a, 5b as evaporable low pressure refrigerant.In addition, under the situation of heat pump for supplying hot water machine, decompressor 4a, 4b, 4c should adopt electric expansion valve.This be because, it can correspondingly change the amount of restriction of refrigerant flow path with heating efficiency, plays the effect of regulating the circulating mass of refrigerant in the heat pump circuit, perhaps with above-mentioned amount of restriction standard-sized sheet, warm cold-producing medium is delivered to evaporimeter 5a, 5b in a large number in making, and plays the effect of the defroster of defrosting.
In addition, evaporimeter 5a, 5b are made of the air cooling agent heat exchanger of the heat exchange of carrying out air and cold-producing medium.
Below, the heat pump running when hot-water supply running, floor are added heat run, water for bathing supplementary heating running describes.
During the hot-water supply running, floor heated side refrigerant loop 41 and water for bathing side refrigerant loop 42 all turn round, cold-producing medium by the HTHP of compressor 1a, 1b compression flows to refrigerant side heat-transfer pipe 3a, 3b by cold-producing medium switch valve 2a and cold-producing medium switch valve 2c, heat the water that flow through water supply side heat-transfer pipe 3c, 3d are supplied, by decompressor 4a, 4b, evaporimeter 5a, 5b, the cold-producing medium that becomes low-pressure low-temperature turns back to compressor 1a, 1b.By carrying out this cold-producing medium circulation repeatedly, can heat the back hot-water supply continuously to the water of being supplied.
In addition, in the running of above-mentioned hot-water supply, compressor 1a, 1b carry out and the corresponding revolution control running of loading of hot-water supplies such as supply water temperature and hot-water supply temperature.
When the floor adds heat run, only carry out 41 runnings of floor heated side refrigerant loop, the cold-producing medium of the HTHP that is compressed by compressor 1a flows into the floor heating with among the refrigerant pipe 8a by cold-producing medium switch valve 2b, thermophore heating to the floor heating water pipe 8b that flows through, by decompressor 4c, evaporimeter 5a, the cold-producing medium that becomes low-pressure low-temperature turns back to compressor 1a.By carrying out this cold-producing medium circulation repeatedly, can heat the floor heating continuously and warm oneself with realization with thermophore.
In addition, when above-mentioned floor adds heat run, part by making cold-producing medium turns back between evaporimeter 5a and the compressor 1a from the cold-producing medium compression mid portion of compressor 1a carries out volume controlled, then can reduce the circulating mass of refrigerant in heat pump refrigerating agent loop, can alleviate the load of compressor 1a, even it also can obtain stable running with slow speed (about 1000 rev/mins) running.
In addition, when the water for bathing supplementary heating, only carry out the running of water for bathing side refrigerant loop 42, the cold-producing medium of the HTHP that is compressed by compressor 1b flows into water for bathing refrigerant pipe 7a by cold-producing medium switch valve 2d, heat the bathtub water of the water for bathing water pipe 7b that flows through, turn back to compressor 1b by the cold-producing medium that becomes low-pressure low-temperature behind decompressor 4b, the evaporimeter 5b.By carrying out the circulation of this cold-producing medium repeatedly, Heating bath water and realize the supplementary heating of water for bathing continuously.
In addition, in above-mentioned water for bathing supplementary heating running, compressor 1b carry out with bathtub with the corresponding revolution control running of loading of the hot-water supply of coolant-temperature gage and environment temperature etc.
Below, the structure in the hot-water supply loop 45 with the water-flow circuit that is used to carry out kitchen hot-water supply, water for bathing hot-water supply, water for bathing supplementary heating is described.
Kitchen hot water supply loop is emitted hot water handware 19 and is constituted with check valve 13, water supply side heat-transfer pipe 3c, 3d, hot-water supply mixing valve 16, hot water cold water mixing valve 17, flow control valve 18, kitchen by the water supply handware 10 that connects successively by water pipe, pressure-reducing valve 11, water-supply quantity sensor 12, water supply.
In addition, water supply handware 10 is connected with waterings such as running water pipes, and the kitchen emits hot water handware 19 and is connected with Kitchen tap 20 grades.
Bathing water's supply loop is made of with check valve 13, water supply side heat-transfer pipe 3c, 3d, hot-water supply mixing valve 16, hot water cold water mixing valve 17, flow control valve 18, bathing water's injection valve 21, hydraulic selector 22, water for bathing circulating pump 23, level sensor 24, hot water discrepancy handware 25 the water supply handware 10 that connects successively by water pipe, pressure-reducing valve 11, water-supply quantity sensor 12, water supply.
Water for bathing supplementary heating loop is emitted handware 28 with water for bathing water pipe 7b, the bathing water of heat exchanger 7 and is constituted by come in and go out handware 25, level sensor 24, water for bathing circulating pump 23, hydraulic selector 22, water for bathing of the hot water that connects successively by water pipe.In addition, the structure of hot water discrepancy handware 25 is to be connected with bathtub 27 by water for bathing circulation control valve 26, when the supply bathing water, from level sensor 24 side direction bathtubs 27 side hot-water supplies, when the water for bathing supplementary heating, carry out the water circulation from bathtub 27 side direction level sensors 24 sides.
In addition, when the water for bathing supplementary heating, 23 runnings of water for bathing circulating pump, when utilizing above-mentioned water for bathing supplementary heating loop to carry out the water circulation of bath water, revolution control carrying out heat pump running by water for bathing side refrigerant loop 42, by water for bathing with the surplus hot water of heat exchanger 7 Heating baths 27 and make it return bathtub 27 to carry out the supplementary heating of water for bathing.
In addition, the floor adds that heat run is performed such: by compressor 1a being carried out the volume controlled running, when carrying out the volume controlled running of floor heating with refrigerant loop 41, by the running of floor heating with circulating pump 9, make in the floor heating and heating water pipe 8b by the floor with heated thermophore in the heat exchanger 8, floor heating hot-water supply handware 29, heat with hot-water supply pipe 31a on the floor, 32a, floor heating backwater handware 30, floor heating circulating pump 9, circulate in the floor heating circuit that floor heating water pipe 8b constitutes, thermophore absorbs heat in floor heating water pipe 8b, and heats with hot-water supply pipe 31a on the floor, heat radiation adds heat run to carry out the floor among the 32a.
And, operation controller 55 carries out the running in thermal source loop 40 or control that stops and compressor 1a by the operating and setting of kitchen remote controller 56 and water for bathing remote controller 57, in the time of the revolution control of 1b or volume controlled, by the switch of control cold-producing medium switch valve 2a-2d, decompressor 4a, 4b, the adjustment of the cold-producing medium amount of restriction of 4c, floor heating circulating pump 9, the running of hold-up tank circulating pump 15 and water for bathing circulating pump 23 or the control that stops and control hot-water supply mixing valve 16, hot water cold water mixing valve 17, flow control valve 18, bathing water's injection valve 21 carries out the hot-water supply running, fill with bathing water's running, water for bathing supplementary heating running and floor add heat run etc.
In addition, operation controller 55 also carries out following control, that is: the revolution of control compressor 1a, 1b, after running beginning at once with predetermined high rotation speed operation so that the shortening heat temperature raising time, when the low weight water for bathing supplementary heating of thermic load is turned round, then to turn round with the corresponding slow-speed of revolution of heating-up temperature.
Have again, in the heat pump for supplying hot water machine, also be provided with the water supply thermistor that detects supply water temperature, detect hot-water supply with the heat exchanger temperature-sensitive resistance of the hot water outlet temperature of heat exchanger 3, detect the hot-water supply temperature the hot-water supply thermistor, detect bath water temperature the water for bathing thermistor and detect the discharge pressure of compressor 1a, 1b pressure sensor (above all not shown), detect the level sensor 24 of the water level in the bathtub 27; Each detection signal all is imported in the operation controller 55.Operation controller 55 is controlled various device according to these signals.
In addition, in operation controller 55, also set because of using terminal to use priority under the situation that causes the heating efficiency deficiency simultaneously, promptly carry out at the same time hot-water supply with and floor heating usefulness or water for bathing supplementary heating use use the time, priority of supply hot water; Carry out at the same time under the situation of kitchen hot-water supply usefulness and supply bathing water use, the kitchen hot-water supply is preferential.
In addition, the high hydraulic pressure that fluctuates in the 200-600kPa scope of pressure-reducing valve 11 pressure that is used for will be for example supplying with from the running water pipe of watering controls to pressure and is about suitable certain hydraulic pressure in the use about 170kPa; Supply water and be used to make water only to flow in case non-return stream in one direction with check valve 13.
Below, describe with reference to the thermal source loop 40 of Fig. 1 and hot-water supply loop 45 and according to the operation process to heat pump for supplying hot water machine of the present invention such as flow chart of Fig. 2-Fig. 6.
An embodiment of the flow chart of necessary operations when Fig. 2 is the expression installation.
The heat pump for supplying hot water machine is from the manufacturing site location transportation and be installed to the desirable place that is provided with of user, water supply handware 10 is being connected on the waterings such as running water pipe, the kitchen is gone out hot water handware 19 to be connected on the Kitchen tap 20, hot water is passed in and out handware 25 and bathing water emits handware 28 and is connected on the water for bathing circulation control valve 26 (step 60) afterwards, for EXO Kitchen tap 20 (step 61), when opening the cock (step 62) of watering, just begin in machine, to supply water from watering, water flow into hot-water supply with in heat exchanger 3 and each water pipe (step 63) after pressure-reducing valve 11 decompressions and being adjusted to certain pressure.After having confirmed from overflowing of Kitchen tap 20 that by water water loop has been in the state (step 64) of filling with water in the machine, close Kitchen tap 20, finish in machine, supply water (step 65).
Subsequently, when the heat pump for supplying hot water machine is installed, be following original state with each apparatus settings.That is, hot-water supply mixing valve 16 and hot water cold water mixing valve 17 are in the three-dimensional open mode, and flow control valve 18 is in full-gear, and bathing water's injection valve 21 is in the complete shut-down state.
Then, connect power switch (step 66), carry out bath water and fill with running (step 67).It is the bathing water to be flowed into valve 21 open that bath water is filled with running, and bathtub 27 is injected water, and till water overflowed, judgement bathtub 27 had been filled with water (step 68); The water level and the water yield of utilizing level sensor 24 and water-supply quantity sensor 12 to detect in the bathtub 27, operation controller 55 calculates the total 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 27 and by the setting (step 70) of the water level variable of amount of makeup water decision, and apply to set later water for bathing automatically the bathing water of running fill with or the hot water amount control of bathing water when not filling with etc.Therefore, above-mentioned bathing water fills with running and only need carry out once when the heat pump for supplying hot water machine is set.
Secondly, Fig. 3 is an embodiment of the flow chart of the expression course of work of opening the 20 hot-water supply times spent of Kitchen tap.
When opening Kitchen tap 20 and bring into use hot water (step 71), water-supply quantity sensor 12 detects flow and begins the judgement (step 72) of hot-water supply, as long as surpassing certain value, flow then is judged as the beginning hot-water supply, operation controller 55 just starts compressor 1a, 1b, beginning heat pump running (step 73) is by by water supply handware 10, pressure-reducing valve 11, water-supply quantity sensor 12, supply water with check valve 13, water supply side heat-transfer pipe 3c, 3d, hot-water supply mixing valve 16, hot water cold water mixing valve 17, flow control valve 18, the kitchen goes out hot water handware 19, the hot-water supply loop that Kitchen tap 20 constitutes begins hot-water supply (step 74).
At this, operation controller 55 is with rotating speed control running compressor 1a, 1b, when compressed high-temperature high-pressure refrigerant is circulated, by opening the cold-producing medium switch valve 2a and the 2c in thermal source loop 40, close cold-producing medium switch valve 2b and 2d, though make the cold-producing medium circulation in heat exchanger 3 at hot-water supply, do not carry out cold-producing medium with heat exchanger 7 and floor heating in heat exchanger 8 at water for bathing and circulate.In addition, open decompressor 4a, 4b and regulate, and decompressor 4c closes.
Promptly, to be sent to hot-water supply by the high-temperature high-pressure refrigerant that compressor 1a, 1b have compressed with among refrigerant side heat-transfer pipe 3a, the 3b of heat exchanger 3, flow through water that water supply side heat-transfer pipe 3c, 3d supplied and flow to hot water cold water mixing valve 16 sides of heating, but, because after running has just begun, be sent to that hot-water supply does not reach a high temperature high pressure fully with the cold-producing medium in the heat exchanger 3 and temperature is lower, and whole hot-water supply usefulness heat exchanger 3 is colder, thereby, add the heating efficiency deficiency of hot water.Along with the high pressure that reaches a high temperature through cold-producing medium behind the certain hour, correspondingly, the heat that is distributed by compressed cold-producing medium increases, heating efficiency to water also increases gradually, but during reaching the running warm of suitable temperature (about 40 ℃) up to the hot-water supply temperature from this running beginning, the hot water that is higher than proper temperature that is stored in advance in the hot-water storage jar flows out, utilize hot-water supply mixing valve 17 with from water supply side heat-transfer pipe 3c, the hot water that 3d flows out is mixed into the high-temperature water that is higher than proper temperature, and then, after utilizing hot water cold water mixing valve 17 and the cold water of coming to mix in right amount to reach the temperature that is suitable for using, by flow control valve 18 from water-supply quantity sensor 12 effluents, the kitchen goes out hot water handware 19 to Kitchen tap 20 hot-water supplies.
In above-mentioned hot-water supply running, floor heated side refrigerant loop 41 and the water for bathing side refrigerant loop 42 of Fig. 1 all turn round, and compressor 1a, 1b control by the rotating speed that operation controller 55 carries out shown in Fig. 4 (a); In the higher summer of supplying with from the water supply pipe at water source etc. of water temperature, owing to get final product with the little heat that adds, the slow-speed of revolution that can carry out shown in the B point is turned round; But in supply water temperature low winter, owing to need the big heat that adds, thereby can carry out the high rotation speed operation shown in the C point.
In existing hot-water storage type heat pump for supplying hot water machine, make compressor operation and store high-temperature-hot-water with 2000-3000 rev/min rotating speed in advance.Under the situation of floor heating usefulness, make the hot water circuit that is stored in the hot-water storage jar carry out the floor heating, and compressor does not turn round.
But, in the loss mode of operation heat-pump hot water supply machine of present embodiment, turning round with the corresponding compressor revolution of hot-water supply applied load, hot-water supply as moment hot water ebullator.As hot-water storage type heat pump for supplying hot water machine, when the hot water that uses the hot-water storage jar to store when heating on the floor carries out the floor heating, because its efficient is extremely low, thereby, also as the moment formula, make compressor operation when heating to raise the efficiency on the floor.Therefore, under the situation of the light load (as mentioned above for example, temperature difference is less than 10 ℃) when heating, need turn round with the slow-speed of revolution, to carry out volume controlled as its countermeasure as the floor.
In addition, Fig. 4 (b) is that the expression compressor is with the compressor revolution under revolution control and the volume controlled working order and the graph of a relation of heating efficiency.When the floor adds heat run, such as previously described, have only about 10 ℃ with the discrepancy temperature difference of thermophore because heat on the floor, thereby in the present invention, shown in the A point, carrying out can be with the volume controlled running of low speed steady running.
Promptly, in Fig. 1, only carry out the running of floor heated side refrigerant loop 41, in compressor 1a running, open capacity control drive 6, cold-producing medium is partly turned back between evaporimeter 5a and the compressor 1a from the intermediate pressure of compressor 1a, to reduce circulating mass of refrigerant, thereby when regulating heating efficiency, reduced the load of compressor, can make compressor proceed stable running.
Return Fig. 3 again, after above-mentioned hot-water supply running beginning (step 74), utilize the detection data of water-supply quantity sensor 12, water supply thermistor, the quick resistance of heat supply hydro-thermal etc., operation controller 55 carries out the adjusting (step 75) of hot-water supply temperature and flow, proceeds proper temperature, the suitably hot-water supply running of flow.In addition, (step 76) constantly carried out in the judgement of hot-water supply temperature and flow, as long as in prescribed limit, all proceed hot-water supply up to cutout cock 20 (step 77).
When Kitchen tap 20 closes, uses hot water to finish (step 78), operation controller 55 just stops compressor 1a, 1b (step 79), and running finishes (step 80).
Fig. 5 is an expression water for bathing embodiment of the flow process of the course of work of filling with hot water of running automatically.
Push the water for bathing automatic button in advance and make its connection " ON " (step 91), when the moment of setting arrives, begin to fill with bathing water's running (step 92), open bathing water's injection valve 21, carry out bathing water's supply (step 93).
This bathing water's supply (step 93) and hot-water supply illustrated in fig. 3 be with similarly carrying out the heat pump running, by above-mentioned bathing water's supply loop to bathtub 27 hot-water supplies, with replacement to Kitchen tap 20 hot-water supplies.
In addition, supply in the running the bathing water, detect bathing water's temperature of supply and judge hot-water supply temperature (step 94) with the water for bathing thermistor, if outside prescribed limit, just carry out adjustment (step 94a), if in prescribed limit, then continue bathing water's supply (step 95).
Have again,, judge bathing water's injection rate (step 96) with the water level that level sensor 24 detects in the bathtub.In the judgement of this bathing water's injection rate (step 96), if its amount is outside regulation, then continue supply bathing water's (step 95), if its amount reaches in the prescribed limit, stop supplies bathing water (step 97) then, by stopping compressor 1a, 1b (step 98), the running of injecting the bathing water finishes (step 99).
Fig. 6 is an expression water for bathing embodiment of the flow process of the water for bathing supplementary heating of running automatically.
Push the water for bathing automatic button in advance and make its connection " ON " (step 100), when the moment of setting then, begin the bathing water that above-mentioned Fig. 5 illustrated and inject running (step 101), thereafter when the end bathing water injects running (step 102), the beginning water for bathing is incubated running (step 103).
After the beginning water for bathing insulation running (step 103), detect the hot water temperature by the water for bathing thermistor, during hot water temperature's (step 104) in judging bathtub, if temperature then continues the water for bathing insulation in setting, be lower than in temperature under the situation of setting, then carry out water for bathing supplementary heating running (step 105).In addition, (for example 10 minutes) are by the hot water amount in the level sensor 24 detection bathtubs at regular intervals, when carrying out bathing water's injection rate judgement (step 106), if its amount then continues insulation in setting, if be lower than under the situation of setting, then supply bathing water's running (step 107).
And then, automatically after time of running, then finishing water for bathing insulation running (step 108) through the water for bathing that sets, the water for bathing constipation bundle (step 109) that turns round automatically.
Though the foregoing description explanation is the situation with heat pump mode of the direct hot-water supply formula of being applicable to of hot-water storage jar,, even in the heat pump mode of the direct hot-water supply formula that does not have the hot-water storage jar, also can be suitable for and have same effect.
Embodiment 2
Below, according to Fig. 7 the second embodiment of the present invention is described.
Among Fig. 7, the parts different with Fig. 1 have following three: as the heating water pipe 37a of water for bathing with the heated side of heat exchanger 37, switch flow to above-mentioned heating water pipe 37a the heating water heating water switch valve 35 and detect hot-water supply with the heat exchange of the flow of heat exchanger 3 with flow sensor 36.
Among Fig. 7, be: will be replaced as heating water pipe 37a with the water for bathing of the heated side of heat exchanger 7 with refrigerant pipe 7a as water for bathing with the first embodiment dissimilarity that in Fig. 1, has illustrated; This heating water pipe 37a is used to make from being supplied the flow of hot water mistake that hot water flows into by heating water switch valve 35 with heat exchanger 3 warmed-up water supply side heat-transfer pipe 3c, 3d.
In addition, its purpose and effect are, by with water for bathing shown in Figure 1 with heat exchanger 7 water for bathing be replaced as heating water pipe 37a with refrigerant pipe 7a, flow through water for bathing with heat exchanger 37 owing to can avoid making the cold-producing medium of high pressure, thereby can make the very thin and very light in weight of wall that heats water pipe 37a, thus can reduce the volume of water for bathing with heat exchanger 37, whole water for bathing can be made two-layer pipe with heat exchanger 37, thereby can realize little shape lightweight, and reduce cost.
In addition, will heat water switch valve 35 and only make and when the water for bathing supplementary heating, open, and make from the heating water of water supply side heat-transfer pipe 3c, the 3d heating water pipe 37a that flows through, thereby can heat the bath water that flows through water for bathing water pipe 37b.
In addition, heat exchanger is used for detecting the flow of hot-water supply with heat exchanger 3 with flow sensor 36, and to control more subtly, it is also applicable to embodiment 1.
Second embodiment adopts above structure, identical action can equally with first embodiment be carried out on its heat pump running, hot-water supply running, floor add heat run and the bathing water injects, the automatic running of water for bathing etc., brings into play identical effect and obtains same effect.

Claims (6)

1. floor heating system employing heat pump for supplying hot water, have: the thermal source loop that the heat pump refrigerating agent loop that is made of with heat exchanger, decompressor, evaporimeter with heat exchanger, floor heating compressor, cold-producing medium switch valve, hot-water supply constitutes, the water that heating is supplied and the hot-water supply loop of hot-water supply, the floor heating circuit of the thermophore of heat cycles and heat supply; It is characterized in that:
Have the time, above-mentioned compressor is carried out revolution control the heat supply of above-mentioned hot-water supply loop; To the heating circuit heat supply of above-mentioned floor the time, above-mentioned compressor is carried out the operation controller of volume controlled.
2. floor heating system employing heat pump for supplying hot water according to claim 1 is characterized in that:
Above-mentioned heat pump refrigerating agent loop has capacity control drive between the cold-producing medium of above-mentioned compressor compression mid portion and above-mentioned evaporimeter and above-mentioned compressor, above-mentioned capacity control drive is closed when above-mentioned compressor is carried out revolution control in advance, opens when carrying out volume controlled.
3. floor heating system employing heat pump for supplying hot water according to claim 1 is characterized in that:
Above-mentioned thermal source loop is made of a plurality of heat pump refrigerating agent loop, when hot-water supply turns round, and the running of a plurality of heat pump refrigerating agent loop, when adding heat run on the floor, independent heat pump refrigerating agent loop running.
4. floor heating system employing heat pump for supplying hot water according to claim 3 is characterized in that:
Above-mentioned thermal source loop is by the heat pump refrigerating agent loop with volume control function and do not have two heat pump refrigerating agent loop, heat pump refrigerating agent loop of volume control function to constitute; When hot-water supply turns round, all turn round in two heat pump refrigerating agent loops; When the floor adds heat run, only has the heat pump refrigerating agent loop running of volume controlled; When the water for bathing supplementary heating, have only and do not have the running of the heat pump refrigerating of volume controlled agent loop.
5. floor heating system employing heat pump for supplying hot water according to claim 1 is characterized in that:
Above-mentioned operation controller carry out at the same time hot-water supply with and floor heating with or the water for bathing supplementary heating time spent, preferentially carry out the revolution of hot-water supply running and control.
6. floor heating system employing heat pump for supplying hot water according to claim 1 is characterized in that:
Above-mentioned hot-water supply loop have from the hot-water storage jar to the hold-up tank hot-water supply loop of using terminal provisioning hot water and will be by hot-water supply with the hot water of heat exchanger heating directly to using the direct hot-water supply loop of terminal provisioning hot water.
CN 200610008344 2005-08-11 2006-02-17 Floor heating system employing heat pump for supplying hot water Pending CN1912476A (en)

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Cited By (4)

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CN100443826C (en) * 2007-03-30 2008-12-17 东南大学 Multifunction geothermal-energy heat pump radiation air-conditioner and water heating system
CN102135328A (en) * 2011-04-01 2011-07-27 广东美的电器股份有限公司 Multifunctional heat pump water heater
CN102326039A (en) * 2009-02-24 2012-01-18 大金工业株式会社 Heat pump system
CN103109142A (en) * 2010-09-14 2013-05-15 株式会社Tr有效能 Heat pump system using heat from the earth

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JP4872814B2 (en) * 2007-06-08 2012-02-08 株式会社デンソー Hot water supply device and control device for hot water supply device
JP4988521B2 (en) * 2007-11-16 2012-08-01 日立アプライアンス株式会社 Heat pump water heater
JP6320633B2 (en) * 2015-05-12 2018-05-09 三菱電機株式会社 Heat pump equipment

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JPS58184460A (en) * 1982-04-21 1983-10-27 Matsushita Electric Ind Co Ltd Method of controlling capacity of radiator
JPH04136470U (en) * 1991-05-31 1992-12-18
JP4201488B2 (en) * 2001-03-26 2008-12-24 三洋電機株式会社 Refrigeration equipment
JP3811682B2 (en) * 2003-03-14 2006-08-23 日立ホーム・アンド・ライフ・ソリューション株式会社 Heat pump hot water heater

Cited By (7)

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Publication number Priority date Publication date Assignee Title
CN100443826C (en) * 2007-03-30 2008-12-17 东南大学 Multifunction geothermal-energy heat pump radiation air-conditioner and water heating system
CN102326039A (en) * 2009-02-24 2012-01-18 大金工业株式会社 Heat pump system
CN102326039B (en) * 2009-02-24 2013-07-17 大金工业株式会社 Heat pump system
CN103109142A (en) * 2010-09-14 2013-05-15 株式会社Tr有效能 Heat pump system using heat from the earth
CN103109142B (en) * 2010-09-14 2015-04-29 株式会社Tr有效能 Heat pump system using heat from the earth
CN102135328A (en) * 2011-04-01 2011-07-27 广东美的电器股份有限公司 Multifunctional heat pump water heater
CN102135328B (en) * 2011-04-01 2012-11-07 广东美的电器股份有限公司 Multifunctional heat pump water heater

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