CN1755199A - Heat pump type hot-water heating apparatus - Google Patents
Heat pump type hot-water heating apparatus Download PDFInfo
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- CN1755199A CN1755199A CN 200510109657 CN200510109657A CN1755199A CN 1755199 A CN1755199 A CN 1755199A CN 200510109657 CN200510109657 CN 200510109657 CN 200510109657 A CN200510109657 A CN 200510109657A CN 1755199 A CN1755199 A CN 1755199A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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Abstract
The invention relates to a heat pump water heater. When hot storage water and a heater run simultaneously, cooling medium is distributed to a water cooling medium heat exchanger used for storing hot water and the water cooling medium heat exchanger arranged at the heater side; at the beginning of simultaneous running, the heater side is preferential during the ability distribution of a compressor, and the heating characteristic is enhanced when running begins. The heat pump water heater comprises a heat pump cooling medium loop at the hot storage water side; the heat pump cooling medium loop at the heater side; a hot storage water circulation loop for leading the hot water in a hot water storage tank to cycle and boil; a heating circulation loop for leading warm water that is used for heating to heat by circulating at a heating terminal; and a control device of a mechanism which distributes the cooling medium discharged from the compressor to the heat pump cooling medium loop at the hot storage water side and the heat pump cooling medium loop at the heater side; wherein, the control device controls the opening degree of a flow regulating valve at the hot storage water side and the flow regulating valve at the heater side; at the beginning of simultaneous running of the hot storage water and the heater, the opening degree of the flow regulating valve at the heater side of the heat pump cooling medium loop at the heater side is larger than flow regulating valve at the hot storage water side of the heat pump cooling medium loop at the hot storage water side.
Description
Technical field
The present invention relates to use the heat pump type hot-water heating apparatus of carbon dioxide as refrigerant, be particularly related to when turning round in heat accumulation water transport commentaries on classics and warming operation, the refrigerant that compressor is discharged distributes mobile heat pump type hot-water heating apparatus to storage hot water side heat pump refrigerant loop and heating side heat pump refrigerant loop.
Background technology
Know, in using the heat pump type hot-water heating apparatus of carbon dioxide as refrigerant, storage hot water side cool water media heat exchanger and heating side cool water media heat exchanger both sides are assembled in the refrigerant loop of heat pump unit, make the heat accumulation water transport of the hot water boiling that stores in the hot water storage tank change and earthward heating terminal circulation such as heating sheet supply with the warm water that heats and the warming operation (for example, with reference to patent documentation 1) that heats.
[patent documentation 1] spy opens the 2002-257366 communique.
; heat pump type hot-water heating apparatus at above-mentioned patent documentation 1; the both sides of storage hot water side cool water media heat exchanger and heating side cool water media heat exchanger are set in the mode of being connected in series in heat pump refrigerant loop; therefore; not only can not carry out heat accumulation water transport commentaries on classics and warming operation separately; and, in heat accumulation water transport commentaries on classics and warming operation, in the running, the compressor capacity adjustable ground can not be distributed to storage hot water side cool water media heat exchanger and heating side cool water media heat exchanger.
Therefore, consider from the capability problems of compressor, when making refrigerant when storage hot water side cool water media heat exchanger flows simultaneously with heating side cool water media heat exchange both sides, wish storage hot water side cool water media heat exchanger and heating side cool water media heat exchanger are suitably distributed the refrigerant that flows respectively.
Especially, just begin the initial stage at warming operation, because the room that is provided with the heating terminal is rapidly heated, so, when heat accumulation water transport commentaries on classics and warming operation turn round simultaneously, in compressor capacity is distributed, preferential with the heating side, be necessary to flow than the refrigerant of storage hot water side cool water media heat exchanger volume to heating side cool water media heat exchanger.
Summary of the invention
The present invention is a mirror with above-mentioned practical problem, its objective is: running when can carry out heat accumulation water transport commentaries on classics and warming operation is provided, simultaneously, can distribute refrigerant the both sides of heat accumulation water water refrigerant heat exchanger and heating side cool water media heat exchanger, and, running just begins the initial stage at the same time, and is preferential with the heating side in the capability distribution of compressor, the heat pump type hot-water heating apparatus of the heating characteristic in the time of can improving the running beginning.
The described the present invention of first aspect has: compressor, storage hot water side cool water media heat exchanger, heat accumulation water effluent adjustable valve and air heat exchanger connect and compose loop, use the storage hot water side heat pump refrigerant loop of carbon dioxide as refrigerant by the refrigerant pipe; Refrigerant flow branch from the discharge side of above-mentioned compressor, connect heating side cool water media heat exchanger and heating effluent adjustable valve and constitute by the refrigerant pipe, and and above-mentioned heat accumulation water effluent adjustable valve and air heat exchanger between the heating side heat pump refrigerant loop converged of refrigerant flow; When the heat accumulation water transport is changeed, between above-mentioned storage hot water side cool water media heat exchanger and hot water storage tank, make the heat accumulation water-flow circuit of the hot water circuit boiling in this hot water storage tank; When warming operation, between above-mentioned heating side cool water media heat exchanger and heating terminal, make the circulation of heating warm water and the heating closed circuit that heats; Control the valve opening of above-mentioned heat accumulation water effluent adjustable valve and heating effluent adjustable valve, the control device of the mechanism that flowing of the refrigerant of discharging from above-mentioned compressor distributed to above-mentioned heat accumulation water side heat pump refrigerant loop and the side heat pump refrigerant loop of heating; Above-mentioned control device, when running had just begun when carrying out heat accumulation water transport commentaries on classics and warming operation at the same time, the valve opening of the heating effluent adjustable valve in control heating side heat pump refrigerant loop was greater than the valve opening of the heat accumulation water effluent adjustable valve in storage hot water side heat pump refrigerant loop.
The described the present invention of second aspect has: by the refrigerant pipe compressor, storage hot water side cool water media heat exchanger, heat accumulation water effluent adjustable valve and air heat exchanger are connected and composed loop, use the storage hot water side heat pump refrigerant loop of carbon dioxide as refrigerant; From the refrigerant flow branch of the discharge side of above-mentioned compressor, by coolant piping connect heating side cool water media heat exchanger and heating effluent adjustable valve and constitute and and above-mentioned heat accumulation water effluent adjustable valve and air heat exchanger between the heating side heat pump refrigerant loop converged of refrigerant flow; When the heat accumulation water transport is changeed, between above-mentioned storage hot water side cool water media heat exchanger and hot water storage tank, make the heat accumulation water-flow circuit of the hot water circuit boiling in this hot water storage tank; When warming operation, between above-mentioned heating side cool water media heat exchanger and heating terminal, and make heating warm water circulation, the heating closed circuit that heats; Control the aperture of above-mentioned heat accumulation water effluent adjustable valve and heating effluent adjustable valve, the control device of the mechanism that flowing of the refrigerant of discharging from above-mentioned compressor distributed to above-mentioned heat accumulation water side heat pump refrigerant loop and the side heat pump refrigerant loop of heating; Above-mentioned control device, when running has just begun when carrying out heat accumulation water transport commentaries on classics and warming operation at the same time, the valve opening of the heating effluent adjustable valve in control heating side heat pump refrigerant loop is greater than the valve opening of the heat accumulation water effluent adjustable valve in storage hot water side heat pump refrigerant loop, and, afterwards, loop back the increase and decrease of the load of trackside according to above-mentioned heating, regulate the valve opening of heating effluent adjustable valve and heat accumulation water effluent adjustable valve.
The described the present invention of the third aspect, in the described heat pump type hot-water heating apparatus of second aspect, above-mentioned control device has, based on the heat decision mechanism of judgement of increase and decrease of the load in the closed circuit of the difference of the warm water side entrance temperature of above-mentioned heating side cool water media heat exchanger and warm water side outlet temperature.
At the described heat pump type hot-water heating apparatus of first aspect, the running beginning initial stage in heat accumulation water transport commentaries on classics and warming operation, the distribution of heating efficiency is preferential with the heating side, the amount of the carbon dioxide refrigerant of the HTHP of the heating side cool water media heat exchanger in control flow direction heating side heat pump refrigerant loop is more than the amount of the carbon dioxide refrigerant of the HTHP of the storage hot water side cool water media heat exchanger that flows to storage hot water side heat pump refrigerant loop, therefore, running when can carry out heat accumulation water transport commentaries on classics and warming operation, simultaneously, the raising of the temperature of the heating warm water that flows out from the heating side cool water media heat exchanger of heating the closed circuit can be carried out well, the heating characteristic of heating terminal when the running beginning can be improved.
At the described heat pump type hot-water heating apparatus of second aspect, except that the described effect of first aspect, also according to the change of load of heating side, regulate each valve opening of heating effluent adjustable valve and heat accumulation water effluent adjustable valve, when the load of heating side reduces, the distribution adjusting of compressor capacity can be carried out shifting, capability distribution can be carried out corresponding to each situation of heat accumulation water transport commentaries on classics and warming operation from ability surplus side direction scarce capacity side.
Description of drawings
Fig. 1 is all system diagrams of heat pump type hot-water heating apparatus.
The specific embodiment
Heat pump type hot-water heating apparatus of the present invention, have: by the refrigerant pipe compressor, storage hot water side cool water media heat exchanger, heat accumulation water effluent adjustable valve and air heat exchanger are connected and composed loop, use the storage hot water side heat pump refrigerant loop of carbon dioxide as refrigerant; From the refrigerant flow branch of the discharge side of above-mentioned compressor, connect heating side cool water media heat exchanger and heating effluent adjustable valve and constitute by the refrigerant pipe, and and above-mentioned heat accumulation water effluent adjustable valve and air heat exchanger between the heating side heat pump refrigerant loop converged of refrigerant flow; When the heat accumulation water transport is changeed, between above-mentioned storage hot water side cool water media heat exchanger and hot water storage tank, make the heat accumulation water-flow circuit of the hot water circuit boiling in this hot water storage tank; When warming operation, between above-mentioned heating side cool water media heat exchanger and heating terminal, make the circulation of heating warm water and the heating closed circuit that heats; Control the valve opening of above-mentioned heat accumulation water effluent adjustable valve and heating effluent adjustable valve, the control device of the mechanism that flowing of the refrigerant of discharging from above-mentioned compressor distributed to above-mentioned heat accumulation water side heat pump refrigerant loop and the side heat pump refrigerant loop of heating; Above-mentioned control device constitutes, start of run in heat accumulation water transport commentaries on classics and warming operation, and the valve opening of the heating effluent adjustable valve in control heating side heat pump refrigerant loop is greater than the valve opening of the heat accumulation water effluent adjustable valve in storage hot water side heat pump refrigerant loop.Below, one embodiment of the invention are described.
[embodiment 1]
Below, with reference to description of drawings one embodiment of the invention.Fig. 1 is the system-wide system diagram that expression relates to heat pump type hot-water heating apparatus of the present invention.
Among Fig. 1, A is a heat pump unit, and B is the storage tank unit.And, this Unit two A, B, the warm water tube of the part by constituting the heating closed circuit C1 that warm-water heating uses and the warm water tube that constitutes the part of the heat accumulation water-flow circuit C2 that heat accumulation water uses are communicated with.In addition, above-mentioned heat pump unit A is inner installs with the refrigerant loop R of carbon dioxide as refrigerant.
1 and 2 be located at above-mentioned heating closed circuit C1, as the ground heating sheet of the heating terminal of low temperature side, this ground heating sheet is layed on the indoor floor.3 and 4 is to correspond respectively to the floor heating remote controller (to call " floor heating remote controller " in the following text) that above-mentioned ground heating sheet 1,2 is provided with.
In above-mentioned heating closed circuit C1, be provided with a plurality of thermodynamic valves 5,6, heating circulating pump 7, expansion drum 8, heating side cool water media heat exchanger 9 current road 9B, bypass pipe 10, be located at by-passing valve 11 in this bypass pipe 10 etc.
And, this heating closed circuit C1, heating warm water, to above-mentioned ground heating sheet 1,2 and be arranged at heating fan coil 13 circulations in bathroom in the bathroom and supply with and heat as the heating terminal of high temperature side by heating side cool water media heat exchanger 9 heat temperature raisings.
In addition, in above-mentioned heating closed circuit C1, the heating entrance side temperature sensor 12A and the heating outlet side temperature sensor 12B of the warm water temperature of the entrance side of the current road 9B that detects heating side cool water media heat exchanger 9 and outlet side is set also respectively.
The 14th, bathroom heating remote controller (to call " bathroom heating remote controller " in the following text), the 15th, be arranged at the thermodynamic valve of heating fan coil 13 inlet portions in above-mentioned bathroom, the 16th, be used for by above-mentioned heating circulating pump 7, the part of the warm water that expansion drum 8 is flowed out is supplied with the hybrid thermodynamic valve of above-mentioned ground heating sheet 1,2, and the 18th, detect the floor heating temperature sensor of the warm water temperature of supplying with ground heating sheet 1,2.
The refrigerant loop R of above-mentioned heat pump unit A, has storage hot water side heat pump refrigerant loop TR, simultaneously, has heating side heat pump refrigerant loop DR, wherein, storage hot water side heat pump refrigerant loop TR is that connected successively by the refrigerant pipe can frequency conversion and the compressor 21 of the two stages of compression of regulating power, storage hot water side switch valve 24, the refrigerant flow 22A of storage hot water side cool water media heat exchanger 22, heat accumulation water effluent adjustable valve 27 by electric expansion valve (pressure reducer) formation, the secondary side stream 25B of air heat exchange gas 28 and inner heat exchanger 25, reservoir 29 and form loop, heating side heat pump refrigerant loop DR is the refrigerant flow branch from the discharge side of above-mentioned compressor 21, connect heating side switch valve 23 successively by the refrigerant pipe, the refrigerant flow 9A of heating side cool water media heat exchanger 9, the primary side stream 25A of inner heat exchanger 25 and the heating effluent adjustable valve 26 that constitutes with electric expansion valve (pressure reducer), and and above-mentioned heat accumulation water effluent adjustable valve 27 and above-mentioned air heat exchanger 28 between refrigerant flow merge.
That is, above-mentioned heating side heat pump refrigerant loop DR, with storage hot water side heat pump refrigerant loop TR shared compressor 21, air heat exchanger 28, inner heat exchanger 25 and reservoir 29 etc., loop TR connects side by side to storage hot water side heat pump refrigerant.In addition, near the air heat exchanger 28 of heat pump unit A, set the external temperature sensor GK that detects outside air temperature.
Above-mentioned heat accumulation water-flow circuit C2, the end of the current road 22B of hot water storage tank 31 bottom and storage hot water side cool water media heat exchanger 22, by heat accumulation water circulating pump 32, connect by warm water tube, simultaneously, the other end of above-mentioned current road 22B is connected with warm water tube equally with hot water storage tank 31 top, comprises hot water storage tank 31 and the formation loop.
In addition, among the heat accumulation water-flow circuit C2 between the other end of the current road 22B of above-mentioned storage hot water side cool water media heat exchanger 22 and above-mentioned hot water storage tank's 31 top, the heat accumulation water out side temperature sensor 33 of the outlet side warm water temperature that detects above-mentioned current road 22B is set.
On above-mentioned hot water storage tank 31,, in the secondary stream 34B of water water heat exchanger 34, connect bathtubs 37 by circulating pump 36 by a stream 34A of the circulating pump 35 connections the heating again water water heat exchanger 34 of usefulness.
The 40th, the heat supply water pipe on connection hot water storage tank 31 tops is provided with mixing valve 41 in this heat supply water pipe 40.The 42nd, set the feed pipe of pressure-reducing valve 43, this feed pipe 42 is connected with hot water storage tank 31 bottom and mixing valve 41 branches, also is connected with above-mentioned expansion drum 8 by switch valve 44.
In addition, on above-mentioned hot water storage tank 31, separate predetermined distance, a plurality of hot water temperature's detecting sensors 45 are set, still, only illustrate one at hot water storage tank 31 above-below direction.Hot water temperature's detecting sensor 45 of figure is disposed at top in hot water storage tank 31 short transverse.
And, not low especially season of outside air temperature beyond the severe winter, set the temperature that to seethe with excitement, for example, it is 85 ℃, therefore, detecting hot water temperatures in above-mentioned hot water temperature's detecting sensor 45 is more than 55 ℃ the time, be judged as the surplus hot water, when less than 55 ℃, be judged as the emergency of hot water before running low.At this moment, the configuration position of hot water detecting sensor 45 for example, is the position of 50 liters of the delayed heat water yields.
In addition, when heat supply is turned round, when the room that is heated warms up up, ground heating sheet 1,2 is heat release unlike beginning just, from expansion drum 8 50 °～60 ° warm water of current road 9B backflow, therefore, unlike beginning, carry out heat exchange at heating side cool water media heat exchanger 9 than higher temperature to heating side cool water media heat exchanger 9, the refrigerant temperature that refluxes to compressor 21 becomes high temperature, and compressor 21 is born high load capacity.
Therefore, as the cooler of high temperature refrigerant, except that above-mentioned heating side cool water media heat exchanger 9, what also be provided with is above-mentioned inner heat exchanger 25.Absorbed by the refrigerant behind the air heat exchanger 28 in the identical refrigerant loop R at these inner heat exchanger 25 liberated heats, thereby, the heat absorption efficiency of refrigerant loop R is improved.
In addition, when the discharge side temperature sensor 50 of the temperature of the HTHP gaseous coolant of the discharge side that detects compressor 21, when detecting refrigerant and becoming the high-temperature of regulation,, should control this compressor 21 and stop in order to protect compressor 21.
The 46th, kitchen remote controller (to call " kitchen remote controller " in the following text), the 47th, bathing pool remote controller (to call " bathing pool remote controller " in the following text)
In addition, in above-mentioned heat pump unit A and storage tank unit B, the control device S1, the S2 that are made of microelectronic computer are set respectively.
This control device S1, S2, according to from the heating remote controller 3,4, bathroom heating remote controller 14, various CRANK PULSES that kitchen heating remote controller 46 and bathing pool remote controller 47 etc. send and from heating entrance side temperature sensor 12A, heating outlet side temperature sensor 12B, floor heating temperature sensor 18, heat accumulation water out side temperature sensor 33, discharge side temperature sensor 50, the all temps signal that external temperature sensor GK etc. sends carries out the running and the FREQUENCY CONTROL of compressor 21, the running control of heating side circulating pump 7 and storage hot water side circulating pump 32, thermodynamic valve 5,6,16, storage hot water side switch valve 24, the switch control of heating side switch valve 23, heating effluent adjustable valve 26, the valve opening control of heat accumulation water effluent adjustable valve 27 etc.Below, its action is described.
The water transport of＜heat accumulation is changeed 〉
When the control device S2 of the CRANK PULSES input storage tank unit B of sending from above-mentioned kitchen remote controller 46 and bathing pool remote controller 47, this signal changes the heat accumulation water transport of the hot water boiling in the hot water storage tank 31 from the control device S1 that control device S2 is transported to heat pump unit A.
Promptly, by 32 runnings of control device S1 control storage hot water side circulating pump, at heat accumulation water-flow circuit C2, the hot water of using to hot water flows according to the order of the bottom in the hot water storage tank 31 → heat accumulation water with the top in the current road 22B → hot water storage tank 31 of circulating pump 32 → storage hot water side cool water media heat exchanger 22, stores more to the high more hot water of upper temp in hot water storage tank 31.
On the other hand, in heat pump unit A, control device S1 makes compressor 21 runnings, open storage hot water side switch valve 24, simultaneously, outside air temperature data based on external temperature sensor GK detection, make above-mentioned heat accumulation water effluent adjustable valve 27 be opened to the valve opening of regulation, carbon dioxide refrigerant flows according to the order of secondary stream 25B → reservoir 29 → compressor 21 of refrigerant flow 22A → heat accumulation water effluent adjustable valve 27 → air heat exchanger 28 → inner heat exchanger 25 of the compressor 21 → storage hot water side switch valve 24 → storage hot water side cool water media heat exchanger 22 among the storage hot water side heat pump refrigerant loop TR.At this moment, do not carry out warming operation, therefore, heating side switch valve 23 is closed, and in addition, heating effluent adjustable valve 26 keeps the valve opening of lower limit.
At this, supply with the hot water temperature on hot water storage tank 31 tops, for example, about 85 ℃, the temperature that detects for heat accumulation water outlet temperature sensor 33 becomes this temperature, carry out the FREQUENCY CONTROL of compressor 21, the valve opening control of heat accumulation water effluent adjustable valve 27 by control device S1, on the other hand, store up the flow-control of hot water side circulating pump 32 by control device S2.
Above-mentioned about 85 ℃ boiling target temperature, from the use in outside air temperature low winter to spring or use of severe cold area etc., because the use amount of the hot water of high temperature is many and the also low relation of temperature of pipeline water, so, sometimes be set at about 90 ℃, on the contrary, using from the use in outside air temperature high summer to autumn or in warm area etc., because the use amount of the hot water of high temperature is few and the also high relation of temperature of pipeline water, so, sometimes the boiling target temperature is set at about 65 ℃ that hang down some.
By about 10 ℃～20 ℃ pipeline water of mixing valve 41 supplies from feed pipe 42, mix with the high-temperature water that stores in the above-mentioned hot water storage tank 31, this high-temperature water is adjusted to the suitable temperature of utilizing part to require with this mixing valve 41, is used for from heat supply water pipe 40 to kitchen and bathtub 37 heat supply water etc.In addition, by operation cycle pump 35,36, the hot water that makes the high-temperature water on the top in the hot water storage tank 31 and bathtub 37 carries out heat exchange heating the water water heat exchanger again, can carry out the heating again of bathtub 37.
Rotate the occasion of doing in above common heat accumulation water transport, the ability of compressor 21 with heat pump unit A of maximum 9.0kW ability, for example, in order to become the good efficiencies of about 6.0kW, carry out the FREQUENCY CONTROL of compressor 21, the valve opening control of heat accumulation water effluent adjustable valve 27 by control device S1.At this, owing to give hot water to the portion of utilization, the residual volume of the high-temperature water that can use in the hot water storage tank 31 reduces to about 50 liters, the hot water temperature who is detected by above-mentioned hot water temperature's sensor 45 is less than 55 ℃, be judged as so-called hot water and use up emergency before, in this occasion, make the ability of the compressor 21 of heat pump unit A become maximum 9.0kW and carry out the FREQUENCY CONTROL of fully loaded compressor 21, the valve opening control that heat accumulation water is used flow control valve 27 by control device S1.
＜floor heating running 〉
Below, carry out by ground heating sheet 1 or 2 whens heating, connect floor heating remote controller 3 on the metope that is installed on this room etc. or 4 running switch.So, open corresponding therewith thermodynamic valve 5 or 6 by the control device S2 that receives the running commencing signal, heating circulating pump 7 runnings, at heating closed circuit C1, heating warm water flows according to the expansion drum 8 → heating circulating pump 7 → current road 9B → thermodynamic valve 5 of heating side cool water media heat exchanger 9 or the order of 6 → ground heating sheet 1 or 2 → expansion drum 8.
In addition, in order can correspondence to open thermodynamic valve 5 or 6 time taking problems and open thermodynamic valve 5 or 6 when to break down, above-mentioned by-passing valve 11 makes the part of warm water by bypass pipe 10 bypass, and a spot of warm water flows.
On the other hand, when connecting the running switch of above-mentioned floor heating remote controller 3 or 4, transmit CRANK PULSES by control device S2 to control device S1, therefore, the compressor 21 of this control device S2 running heat pump unit A, meanwhile, open heating side switch valve 23, at refrigerant loop R, refrigerant flows according to the order of secondary stream 25B → reservoir 29 → compressor 21 of a stream 25A → heating effluent adjustable valve 26 → air heat exchanger 28 → inner heat exchanger 25 of the refrigerant flow 9A → inner heat exchanger 25 of compressor 21 → heating side switch valve 23 → heating side cool water media heat exchanger 9.
At this moment, do not carry out heat accumulation water, thereby storage hot water side switch valve 24 cuts out, therefore, in the refrigerant flow 22A of storage hot water side cool water media heat exchanger 22, refrigerant does not flow.
The target temperature of supplying with the warm water of above-mentioned ground heating sheet 1 or 2 is about 60～65 ℃, for the warm water temperature that warm outlet side sensor 12B is detected becomes above-mentioned target temperature, carry out the FREQUENCY CONTROL of compressor 21, the valve opening control of heating effluent adjustable valve 26 by control device S1.
In addition, floor heating control, detect room temperature by the temperature sensor that is installed in floor heating remote controller 3 or 4 (not having diagram), detect room temperature and for example deviation of about 20 ℃ design temperature based on this, switch control thermodynamic valve 5 or 6, control device S2 are controlled the warm water quantity delivered of heating sheet 1 earthward or 2.
In addition, when ground heating sheet 1 and 2 both sides heat simultaneously, by connecting the running switch of floor heating remote controller 3 and 4, ground same as described above switch control thermodynamic valve 5 and 6, heating sheet 1 and 2 both sides supply warm water earthward simultaneously, by independent control heating sheet 1 and 2 warm water quantity delivered earthward, can control the heating installation that is arranged at each room separately.
Carry out the occasion of above-mentioned warming operation, when the room temperature that heats rises, when warming up, from the heat minimizing that flooring surface heating sheet sheds, supplies with 50 ℃～60 ℃ warm water from expansion drum 8 to the current road of heating side cool water media heat exchanger 9.Therefore, at heating side cool water media heat exchanger 9, do not carry out heat exchange so, refrigerant temperature also becomes high temperature, and compressor 21 is applied load.Cooling body as the refrigerant of this occasion, be provided with inner heat exchanger 25, the thermal discharge of a stream 25A of inner heat exchanger 25, at the secondary stream 25B of the inner heat exchanger 25 that is positioned at identical refrigerant loop R by twice absorption, therefore, can constitute the refrigerant loop R that does not have waste, do not lower efficiency.
＜bathroom warming operation 〉
Below, carry out occasion by the bathroom temperature wind heating of the heating fan coil 13 in bathroom, connect the running switch of bathroom heating remote controller 14.So this CRANK PULSES input control device S2 opens the thermodynamic valve of the inlet portion of the heating fan coil 13 in bathroom, heating circulating pump 7 entrys into service by this control device S2.At this, at heating closed circuit C1, heating warm water flows according to the order of the heating fan coil 13 → expansion drum 8 in 9B → thermodynamic valve 15 → bathroom, current road of expansion drum 8 → heating circulating pump 7 → heating side cool water media heat exchanger 9.
At this, in order corresponding thermodynamic valve 15 to open time taking problem and at fail-open thermodynamic valve 15, by-passing valve 11 makes a part of warm water by bypass pipe 10 bypass, minor amount of water flows.
The action of heat pump unit A is identical with the floor heating running with the refrigerant circulation, does not carry out hot water storage, thereby storage hot water side switch valve 24 cuts out, and refrigerant does not flow in the refrigerant flow 22A of storage hot water side cool water media heat exchanger 22.
The target temperature of supplying with the warm water of the heating fan coil 13 in above-mentioned bathroom is about 80 ℃, for the warm water temperature that heating outlet side sensor 12B is detected becomes above-mentioned target temperature, carry out the FREQUENCY CONTROL of above-mentioned compressor 21, the valve opening control of heating effluent adjustable valve 26 by control device S1.
In addition, the heating control of the bathroom of above-mentioned control device S2 detects room temperature by the temperature sensor that is installed on the heating fan coil 13 in bathroom (there be not diagram), based on the room temperature that detects and the deviation of design temperature, by control fan revolution, simultaneously, undertaken by switch control thermodynamic valve 15.
In the above such floor heating running or the occasion of bathroom warming operation action, for the ability of the compressor 21 that makes the heat pump unit A with maximum capacity 9.0kW for example becomes about 7.0kW, carry out the FREQUENCY CONTROL of compressor 21, the valve opening control of heating effluent adjustable valve 26 by control device S1.
Warming operation in the time of＜floor heating and bathroom heating 〉
The floor heating of the sheet of face heating simultaneously 1,2 and bathroom are connected the running switch of remote controller 3,4,14 respectively with the occasion of the bathroom forced-air heating of fan coil 13.So, open thermodynamic valve 5,6,15 by control device S2, heating circulating pump 7 runnings, at heating closed circuit C1, warm water flows according to the expansion drum 8 → heating circulating pump 7 → current road 9B → thermodynamic valve 5 of heating side cool water media heat exchanger 9 and the order of 6 → ground heating sheet 1 and 2 → expansion drum 8, meanwhile, warm water flows according to the order of the heating fan coil 13 → expansion drum 8 in 9B → thermodynamic valve 15 → bathroom, current road of expansion drum 8 → heating circulating pump 7 → heating side cool water media heat exchanger 9.
In order can correspondence to open thermodynamic valve 5,6,15 time taking problems and open thermodynamic valve 5,6,15 when to break down, above-mentioned by-passing valve 11 makes a part of warm water by the bypass pipe bypass, and a small amount of warm water flows.
At this, control about 80 ℃ with the warm water temperature of heating outlet side temperature sensor 12B, the water of temperature is as the heating warm water of circulation supply ground heating sheet 1,2 like this, and temperature is too high.In order to address this problem, by opening hybrid thermodynamic valve 16, in about 80 ℃ warm water, mix middle warm water from expansion drum 8, be about 60 ℃ of ground with the floor with the warm water temperature that temperature sensor 18 detects, control.
In addition, warm water is too much in mixing, and when causing low temperature, closes hybrid thermodynamic valve 16, and control device S2 carries out the switch control of thermodynamic valve 16 with the detected temperatures of temperature sensor 18 based on floor heating.
The action of heat pump unit A is identical with floor heating running or bathroom warming operation with the refrigerant circulation, does not carry out hot water storage, thereby storage hot water side switch valve 24 cuts out, and refrigerant does not flow in the refrigerant flow 22A of storage hot water side cool water media heat exchanger 22.
The occasion of running action in above floor heating and bathroom heating, for the ability of the compressor 21 that makes the heat pump unit A with the about 9.0kW of maximum capacity for example becomes about 7.0kW, carry out the FREQUENCY CONTROL of compressor 21, the valve opening control of heating effluent adjustable valve 26 by control device S1.
＜heat accumulation water transport commentaries on classics and warming operation turn round simultaneously 〉
The occasion of running in the time of heat accumulation water transport commentaries on classics and warming operation, the hot water circuit path that the circulating path of heating warm water and heat accumulation water are used such as above-mentioned.
In in this heat accumulation water transport commentaries on classics and warming operation, turning round, at refrigerant loop R, open storage hot water side switch valve 23 and heating side switch valve 24 simultaneously by control device S2, refrigerant be dispensed on storage hot water side heat pump refrigerant loop TR that the order according to secondary side stream 25B → reservoir 29 → compressor 21 of compressor 21 → storage hot water side switch valve 24 → heat accumulation water effluent adjustable valve 27 → air heat exchanger 28 → inner heat exchanger 25 flows and according to the primary side stream 25A → heating effluent adjustable valve 26 of the refrigerant flow 9A → inner heat exchanger 25 of compressor 21 → heating side switch valve 23 → heating side cool water media heat exchanger 9 → and above-mentioned heat accumulation water effluent adjustable valve 27 and air heat exchanger 28 between the both sides of the mobile heating side heat pump refrigerant loop DR of the refrigerant flow order of collaborating in mobile.
At this moment, carry out heat exchange at heating side cool water media heat exchanger 9 with storage hot water side cool water media heat exchanger 22 and inner heat exchanger 25.
In in above common heat accumulation water transport commentaries on classics and warming operation, turning round, even the most about 9.0kW of ability of the compressor 21 of heat pump unit A is owing to reasons such as heat radiation loss cause heat supply efficiency than poor to hot water efficient, therefore, for example, practical capacity is about 7.7kW.
Therefore, turn round simultaneously the beginning initial stage at this, control device S1 is about 4.7kW to the ability of compressor 21 according to the heating side and stores up hot water side and be about 3.0kW and distribute, and carries out each valve opening control of FREQUENCY CONTROL, heating effluent adjustable valve 26 and the heat accumulation water effluent adjustable valve 27 of compressor 21 by control device S1.
Promptly, the control device S1 of heat pump unit A side, start of run in heat accumulation water transport commentaries on classics and warming operation, the valve opening of the heating effluent adjustable valve 26 of heating side heat pump refrigerant loop DR, for example, on be limited to about 480 grades occasion, be set at littler and predetermined than this, for example, about 320 grades, the opposing party is the valve opening of the heat accumulation water effluent adjustable valve 27 of storage hot water side heat pump refrigerant loop TR, for example, on be limited to about 480 grades occasion, be set at valve opening, for example less than above-mentioned heating effluent adjustable valve 26, about 240 grades, carry out valve opening control.
Thereby, start of run in heat accumulation water transport commentaries on classics and warming operation, the ability of compressor 21 is preferential with the heating side, set the valve opening of the valve opening of heating effluent adjustable valve 26, turn round simultaneously, therefore greater than heat accumulation water effluent adjustable valve 27, capability distribution at compressor 21, that is, in the distribution of the heating efficiency of carbon dioxide refrigerant, the side that should heat is preferential.And, the carbon dioxide refrigerant amount that flows to heating side cool water media heat exchanger HTHP 9, that form supercritical pressure is more than the coolant quantity that flows to storage hot water side cool water media heat exchanger 22, therefore, running when can carry out heat accumulation water transport commentaries on classics and warming operation, simultaneously, the beginning of the heating warm water that the current road 9B outlet side of the heating side cool water media heat exchanger 9 from heating closed circuit C1 flows out heated up in order, can improve flooring surface heating sheet 1,2 and the bathroom heating coil 13 heating characteristic when the running beginning.
In addition, rising with the temperature in the room of ground heating sheet 1,2 heating with the temperature in the bathroom of heating coil pipe 13 heating in bathroom, when these rooms become design temperature and runnings of these heating terminals when stopping, the load minimizing of heating closed circuit C1.
At this moment, difference by each detected temperatures of the entrance side of the current road 9B that is equipped on heating side cool water media heat exchanger 9 respectively and outlet side both sides' heating entrance side temperature sensor 12A and heating outlet side temperature sensor 12B reduces, when this temperature difference reduces, above-mentioned control device S1 judges that the load of heating closed circuit C1 reduces (decision mechanism), the aperture of heating effluent adjustable valve 26, for example, become valve opening than the little one-level of valve opening at the beginning initial stage of turning round simultaneously, on the other hand, and the valve opening of heat accumulation water effluent adjustable valve 27, for example, the valve opening ground that becomes than the big one-level of valve opening at the beginning initial stage of turning round simultaneously carries out valve opening control.
Afterwards, when each detected temperatures difference by heating entrance side temperature sensor 12A and heating outlet side temperature sensor 12B more reduces, above-mentioned control device S1 judges that again the load of heating closed circuit C1 more reduces (decision mechanism), the valve opening of heating effluent adjustable valve 26, for example, become valve opening than the little two-stage of valve opening at the beginning initial stage of turning round simultaneously, on the other hand, the valve opening of heat accumulation water effluent adjustable valve 27, for example, the valve opening ground that becomes than the big two-stage of valve opening at the beginning initial stage of turning round simultaneously carries out aperture control.
At this, with above-mentioned opposite, when the running of above-mentioned heating terminal was opened again, the load of heating closed circuit C1 increased.At this moment, entrance side and outlet side both sides' the heating entrance side temperature sensor 12A and the difference increase of the temperature that heating outlet side temperature sensor 12B detects respectively by the current road 9B that is equipped on heating side cool water media heat exchanger 9 respectively, when this temperature difference increases, above-mentioned control device S1 judges that the load of heating closed circuit C1 increases (decision mechanism), the valve opening of heating effluent adjustable valve 26, for example, revert to the valve opening that increases one-level, on the other hand, the valve opening of heat accumulation water effluent adjustable valve 27, for example, revert to the valve opening ground that reduces one-level and carry out valve opening control.
Afterwards, when the difference of the temperature that is detected respectively by heating entrance side temperature sensor 12A and heating outlet side temperature sensor 12B further increases, above-mentioned control device S1 judges that the load of heating closed circuit C1 more increases (decision mechanism), the valve opening of heating effluent adjustable valve 26 is reverted to, for example, the valve opening at beginning initial stage simultaneously turns round, on the other hand, the valve opening of heat accumulation water effluent adjustable valve 27 is also reverted to, for example, turn round the simultaneously valve opening ground at beginning initial stage carries out valve opening control.Thereby, the change of load according to the heating side, regulate each valve opening of heating effluent adjustable valve 26 and heat supply water effluent adjustable valve 27, when heating side load reduces, can carry out the ability of compressor 21 is regulated from the distribution that ability surplus side direction scarce capacity side shifts, can carry out the capability distribution of each situation of reply heat accumulation water transport commentaries on classics and warming operation.
More than be illustrated based on one embodiment of the invention, those skilled in the art can carry out various replacements example based on above-mentioned explanation, revise or distortion, in the scope that does not exceed aim of the present invention, should comprise above-mentioned various replacement example, modification or distortion.
Claims (3)
1. heat pump type hot-water heating apparatus, it is characterized in that, it has: by the refrigerant pipe compressor, storage hot water side cool water media heat exchanger, heat accumulation water effluent adjustable valve and air heat exchanger are connected and composed loop, use the storage hot water side heat pump refrigerant loop of carbon dioxide as refrigerant;
From the refrigerant flow branch of the discharge side of above-mentioned compressor, connect heating side cool water media heat exchanger and heating effluent adjustable valve and constitute by the refrigerant pipe, and and above-mentioned heat accumulation water effluent adjustable valve and air heat exchanger between the heating side heat pump refrigerant loop converged of refrigerant flow;
When the heat accumulation water transport is changeed, between above-mentioned storage hot water side cool water media heat exchanger and hot water storage tank, make the heat accumulation water-flow circuit of the hot water circuit boiling in this hot water storage tank;
When warming operation, between above-mentioned heating side cool water media heat exchanger and heating terminal, make heating warm water circulation, the heating closed circuit that heats;
Control the valve opening of above-mentioned heat accumulation water effluent adjustable valve and heating effluent adjustable valve, have the control device of the mechanism that flowing of the refrigerant of discharging from above-mentioned compressor distributed to above-mentioned heat accumulation water side heat pump refrigerant loop and heating side heat pump refrigerant loop,
Above-mentioned control device, at the running beginning initial stage in heat accumulation water transport commentaries on classics and warming operation, the valve opening of heating effluent adjustable valve that makes heating side heat pump refrigerant loop is greater than the valve opening of the heat accumulation water effluent adjustable valve in storage hot water side heat pump refrigerant loop.
2. heat pump type hot-water heating apparatus, it is characterized in that, it has: by the refrigerant pipe compressor, storage hot water side cool water media heat exchanger, heat accumulation water effluent adjustable valve and air heat exchanger are connected and composed loop, use the storage hot water side heat pump refrigerant loop of carbon dioxide as refrigerant;
Refrigerant flow branch from the discharge side of above-mentioned compressor, connect heating side cool water media heat exchanger and heating effluent adjustable valve and constitute by the refrigerant pipe, and and above-mentioned heat accumulation water effluent adjustable valve and air heat exchanger between the heating side heat pump refrigerant loop converged of refrigerant flow;
When the heat accumulation water transport is changeed, between above-mentioned storage hot water side cool water media heat exchanger and hot water storage tank, make the heat accumulation water-flow circuit of the hot water circuit boiling in this hot water storage tank;
When warming operation, between above-mentioned heating side cool water media heat exchanger and heating terminal, make heating warm water circulation, the heating closed circuit that heats;
Control the aperture of above-mentioned heat accumulation water effluent adjustable valve and heating effluent adjustable valve, have the control device of the mechanism that flowing of the refrigerant of discharging from above-mentioned compressor distributed to above-mentioned heat accumulation water side heat pump refrigerant loop and heating side heat pump refrigerant loop;
Above-mentioned control device, running beginning initial stage when carrying out heat accumulation water transport commentaries on classics and warming operation at the same time, the aperture of heating effluent adjustable valve that makes heating side heat pump refrigerant loop is greater than the aperture of the heat accumulation water effluent adjustable valve in storage hot water side heat pump refrigerant loop, and, afterwards, loop back the increase and decrease of the load of trackside according to above-mentioned heating, regulate the aperture of heating effluent adjustable valve and heat accumulation water effluent adjustable valve.
3. heat pump type hot-water heating apparatus as claimed in claim 2, it is characterized in that, above-mentioned control device has decision mechanism, this decision mechanism is poor based on the warm water side entrance temperature of above-mentioned heating side cool water media heat exchanger and warm water side outlet temperature, the judgement of the increase and decrease of the load in the closed circuit that heats.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004289546A JP4215699B2 (en) | 2004-10-01 | 2004-10-01 | Heat pump water heater / heater |
| JP289546/04 | 2004-10-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1755199A true CN1755199A (en) | 2006-04-05 |
| CN100526727C CN100526727C (en) | 2009-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510109657 Expired - Fee Related CN100526727C (en) | 2004-10-01 | 2005-09-19 | Heat pump type hot-water heating apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4215699B2 (en) |
| KR (1) | KR100640137B1 (en) |
| CN (1) | CN100526727C (en) |
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| CN104006441A (en) * | 2013-02-26 | 2014-08-27 | 三菱电机株式会社 | Flow rate control device and fluid circuit system |
| CN104428603A (en) * | 2012-08-09 | 2015-03-18 | 林内株式会社 | Heat pump heat source system |
| CN104748188A (en) * | 2015-04-01 | 2015-07-01 | 洛阳中懋环保设备有限公司 | Water source heat pump device for making hot water within non-heating full-load time |
| CN104823003A (en) * | 2012-12-04 | 2015-08-05 | 夏普株式会社 | Heat pump heat supply system |
| CN109964085A (en) * | 2016-11-25 | 2019-07-02 | 株式会社能率 | Heat hot water supply apparatus |
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| JP5073970B2 (en) * | 2006-06-01 | 2012-11-14 | 日立アプライアンス株式会社 | Heat pump hot water floor heater |
| JP4833931B2 (en) * | 2007-07-23 | 2011-12-07 | シャープ株式会社 | Heat pump system |
| JP5238315B2 (en) * | 2008-03-26 | 2013-07-17 | 東芝キヤリア株式会社 | Heat pump hot water supply system |
| JP5810042B2 (en) * | 2012-07-09 | 2015-11-11 | リンナイ株式会社 | Hot water heating system |
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| JP2002257366A (en) * | 2001-03-02 | 2002-09-11 | Sekisui Chem Co Ltd | Hot water supplying/heating system |
| JP3869798B2 (en) * | 2003-01-14 | 2007-01-17 | 三洋電機株式会社 | Heat pump water heater / heater |
| JP3869801B2 (en) * | 2003-01-20 | 2007-01-17 | 三洋電機株式会社 | Heat pump water heater / heater |
| JP4215661B2 (en) * | 2004-02-27 | 2009-01-28 | 三洋電機株式会社 | Heat pump water heater / heater |
-
2004
- 2004-10-01 JP JP2004289546A patent/JP4215699B2/en not_active Expired - Fee Related
-
2005
- 2005-08-17 KR KR20050075013A patent/KR100640137B1/en not_active IP Right Cessation
- 2005-09-19 CN CN 200510109657 patent/CN100526727C/en not_active Expired - Fee Related
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| CN104428603A (en) * | 2012-08-09 | 2015-03-18 | 林内株式会社 | Heat pump heat source system |
| CN104823003A (en) * | 2012-12-04 | 2015-08-05 | 夏普株式会社 | Heat pump heat supply system |
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| CN104006441A (en) * | 2013-02-26 | 2014-08-27 | 三菱电机株式会社 | Flow rate control device and fluid circuit system |
| CN104006441B (en) * | 2013-02-26 | 2016-08-31 | 三菱电机株式会社 | Fluid loop system |
| CN104748188A (en) * | 2015-04-01 | 2015-07-01 | 洛阳中懋环保设备有限公司 | Water source heat pump device for making hot water within non-heating full-load time |
| CN109964085A (en) * | 2016-11-25 | 2019-07-02 | 株式会社能率 | Heat hot water supply apparatus |
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| CN112361607A (en) * | 2020-10-26 | 2021-02-12 | 珠海格力电器股份有限公司 | Water heater system control method and device and water heater system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4215699B2 (en) | 2009-01-28 |
| JP2006105434A (en) | 2006-04-20 |
| CN100526727C (en) | 2009-08-12 |
| KR100640137B1 (en) | 2006-11-01 |
| KR20060050501A (en) | 2006-05-19 |
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