CN1403746A - Heat pump type hot water supply device - Google Patents
Heat pump type hot water supply device Download PDFInfo
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- CN1403746A CN1403746A CN02141591A CN02141591A CN1403746A CN 1403746 A CN1403746 A CN 1403746A CN 02141591 A CN02141591 A CN 02141591A CN 02141591 A CN02141591 A CN 02141591A CN 1403746 A CN1403746 A CN 1403746A
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- temperature
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- ambient atmos
- reverse drive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
- F24D19/1054—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses a heat pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
- F24H4/04—Storage heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/042—Temperature sensors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
- F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
To provide a heat pump type hot-water supplier, in which the capacity control of a compressor and the opening degree control of a motor-driven expansion valve are stabilized against the up-and-down fluctuation of an outdoor air temperature in a short time. The outdoor air temperature is detected at every given times to control the capacity of the compressor in accordance with a predetermined reference against the change of the detected outdoor air temperature and control the opening degree of the motor-driven expansion valve in accordance with a predetermined reference.
Description
Technical field
The present invention relates to a kind of heat-pump water heater, particularly relate to a kind of heat-pump water heater of being furnished with the control device of control compressor capacity and electric expansion valve aperture.
Background technology
Usually, heat-pump water heater, is furnished with freezing cycle device with refrigerant loop that compressor, high-pressure side heat exchanger, coolant expansion apparatus, evaporator series are coupled together, utilize the heat pump effect of this freezing cycle device, utilize the high-pressure side heat exchanger will discharge from the heat that ambient atmos draws to hot water supply water so that hot water supply water is heated.
And heat-pump water heater is running throughout the year usually, but because the ambient atmos variation of temperature makes the heating efficiency of hot water supply water also change.For example, when the ambient atmos temperature reduced, evaporating pressure reduced, and the ability of compressor reduces, and high-pressure also reduces.Thereby, the also lower problem of temperature of problem that the heating efficiency that exists hot water to supply water reduces and heated hot water supply water.Therefore, in existing heat-pump water heater, usually, make the ability raising of compressor, so that keep the heating efficiency of hot water supply water and the temperature of hot water supply water corresponding to the reduction of ambient atmos temperature.
But, in the prior art, often detect the temperature of ambient atmos, make the capacity variation of compressor along with this ambient atmos variation of temperature.And, though the ambient atmos temperature generally can not change sharp because mounting condition and because change the sunshine cause because of moving of cloud, the generation of wind and rain or variation etc., the air themperature of evaporimeter periphery is fluctuation up and down at short notice.In this case, in existing hot-water supply device, along with the variation up and down of ambient atmos temperature, compressor capacity also changes up and down.Therefore, the variation that the aperture of expansion valve can not be stable exists to cause the problem that aperture is dwindled, enlarged.And therefore, in compressor, produce liquid and reflux, have the problem of the compressor lost of life.
The present invention proposes in view of this problems of the prior art.Its objective is, provide a kind of short time to fluctuate up and down to change the control make compressor capacity and the stable heat-pump water heater of aperture control of electric expansion valve with respect to the ambient atmos temperature.
Summary of the invention
To achieve these goals, the present invention is furnished with: the freezing cycle device with refrigerant loop that reverse drive formula compressor, high-pressure side heat exchanger, coolant expansion apparatus, evaporator series are coupled together; Store the water storage box of the hot water supply water of the heat pump effect heating that utilizes this freezing cycle device; Control device, it detects the ambient atmos temperature at regular intervals, and corresponding to detected ambient atmos variations in temperature, according to specified standard, control compressor capacity, while are controlled the aperture of electric expansion valve according to specified standard.
Adopt this structure, though the fluctuation up and down at short notice of ambient atmos temperature, owing to the fluctuation up and down that can not detect in the short like this time changes, so the ability of compressor can not change at short notice.Thereby, with respect to the variation of fluctuating up and down of the short time of ambient atmos temperature, can stably carry out the aperture control of compressor capacity control and electric expansion valve, can avoid the compressor life-span to descend.
And in this case, aforementioned control device preferably approximately carried out one time the ambient atmos temperature detection in per 30 minutes.
Like this, detect the temperature of ambient atmos at interval, can suitably carry out the control of compressor capacity control and electric expansion valve aperture corresponding to the ambient atmos variation of temperature with reasonable time.
And aforementioned control device also can be controlled the rotating speed of aforementioned reverse drive formula compressor in the mode that makes compressor capacity be roughly setting corresponding to detected ambient atmos decrease of temperature.
Adopt this structure,, hot water can be supplied the heating efficiency of water and the temperature of hot water supply water and roughly remain on setting corresponding to detected ambient atmos decrease of temperature.
And aforementioned control device also can be controlled the rotating speed of aforementioned reverse drive formula compressor in the mode that makes compressor capacity roughly reach setting corresponding to the ambient atmos decrease of temperature.
Adopt this structure,, can prevent the temperature decline that heating efficiency descends and hot water is supplied water of hot water supply water corresponding to the ambient atmos decrease of temperature.
And heat-pump water heater of the present invention comprises: the freezing cycle device with refrigerant loop that reverse drive formula compressor, high-pressure side heat exchanger, coolant expansion apparatus, evaporator series are coupled together; Store the water storage box of the hot water supply water of the heat pump effect heating that utilizes this freezing cycle device; Control device, it detects the ambient atmos temperature at regular intervals, according to detected ambient atmos temperature and the target heating-up temperature set corresponding to the ambient atmos temperature, according to specified standard, control the operating frequency of aforementioned reverse drive formula two-stage compressor and the aperture of aforementioned electric expansion valve.
Adopt this structure, hot water supply water irrespectively is heated to certain temperature consistently with the ambient atmos temperature, but by reaching the temperature (for example in summer can reduce the heating-up temperature of the hot water supply water that store in water storage box) suitable mutually with common needs, prevent that supplying water with hot water is heated to more than the necessary temperature, can reduce useless running.
And heat-pump water heater of the present invention comprises: the freezing cycle device with refrigerant loop that reverse drive formula compressor, high-pressure side heat exchanger, coolant expansion apparatus, evaporator series are coupled together; Store the water storage box of the hot water supply water of the heat pump effect heating that utilizes this freezing cycle device; Control device, it detects the ambient atmos temperature at regular intervals, the target heating-up temperature of setting according to the predetermined use amount of detected ambient atmos temperature and the hot water supply water selected with respect to the ambient atmos temperature and by the user, according to specified standard, control the operating frequency of aforementioned reverse drive formula compressor and the aperture of aforementioned electric expansion valve.
Adopt this structure, hot water supply water is not irrespectively to be heated to certain temperature by constant with the ambient atmos temperature, but grasp the running control that changes required more detailed variation corresponding to ambient atmos, prevent that supplying water with hot water is heated to more than the necessary temperature, can further reduce useless running.
And, identical with afore-mentioned in this case, aforementioned control device preferably approximately per 30 minutes to external world gas temperature carry out one-time detection.
Like this, detect the ambient atmos temperature at interval, can suitably carry out with respect to the compressor capacity control of ambient atmos variation of temperature and the aperture control of electric expansion valve with reasonable time.
And aforementioned freezing cycle device can be the overcritical freezing cycle device of filling as the carbon dioxide of refrigerant.
Adopt this structure, when using the natural refrigerant that does not have flammable and toxicity, even in the winter time also can the sufficiently high hot water supply of supply temperature water.
And aforementioned reverse drive formula compressor can adopt to be built-in with rudimentary side compressor and senior side compressor and reverse drive formula two-stage compressor that gas that space in this closed shell is discharged by rudimentary side compressor is full of in closed shell.
Adopt this structure, the compression ratio of compressor reduces.Thereby, for the freezing cycle device that in the big heat-pump water heater of height pressure differential, uses, can improve the running efficiency of compressor.And, owing to be discharge gas around rudimentary side compressor and the senior side compressor as the rudimentary side compressor of intermediate pressure, so can in each one of each stage compressor, not act on very big power, can be used as high reliability, low vibration, low noise, high efficiency compressor.
Description of drawings
Fig. 1 is the loop diagram according to the heat-pump water heater of form of implementation 1 of the present invention.
The control flow chart of the reverse drive formula two-stage compressor of Fig. 2 during according to form of implementation 1 of the present invention, constant running after initial setting running finishes.
The aperture control flow chart of the electric expansion valve of Fig. 3 during according to form of implementation 1 of the present invention, constant running after initial setting running finishes.
The flow chart of the operating frequency of the reverse drive formula two-stage compressor of Fig. 4 during and the aperture control of electric expansion valve according to form of implementation 2 of the present invention, constant running after initial setting running finishes.
Fig. 5 is the diagram corresponding to the setting example of the compressor operation frequency of ambient atmos temperature and target heating-up temperature in the expression the invention process form 2.
Fig. 6 is the diagram of the setting example of the target effluent air temp of discharging gas of the compressor corresponding to ambient atmos temperature and target heating-up temperature in the expression the invention process form 2.
Concrete form of implementation
Form of implementation 1
Below, the form of implementation 1 that present invention will be described in detail with reference to the accompanying.In addition, Fig. 1 is the loop diagram according to the heat-pump water heater of the invention process form 1, and the solid arrow among Fig. 1 is represented the flow direction of refrigerant, and dotted arrow is represented the flow direction of hot water.
As shown in Figure 1, according to the hot-water supply device of form of implementation 1, be furnished with: freezing cycle device 1, hot water feeding unit 2 and control device 3.In addition, in this form of implementation, control device 3 is arranged in the freezing cycle device 1.And freezing cycle device 1 and hot water feeding unit 2 are coupled together with connecting pipings 5,6 by water.
Freezing cycle device 1 is an overcritical freezing cycle device of being furnished with the refrigerant loop (closed-loop path) that connects two-stage compressor 11, high-pressure side heat exchanger 12, electric expansion valve 13, evaporimeter 14, storage heater 15 in turn.Be filled with carbon dioxide (CO in this cooling circuit inside
2), as alternative refrigerant by overcritical cool cycles running.As the representative natural refrigerant of refrigeration, idle call, can enumerate hydrocarbon (HC: propane or iso-butane etc.), ammonia, air and CO
2Deng.But as the characteristic of refrigerant, hydrocarbon and ammonia energy efficiency are good but have negative issues such as having flammable and toxicity, and air exists in ultralow temperature zone problem such as energy efficiency variation in addition.Comparatively speaking, carbon dioxide does not have combustibility and toxicity, is safe.
Two-stage compressor is that rudimentary side compressor 11a, senior side compressor 11b, the public motor 11c of compressor that drives these compressors 11a and 11b are built in compressor in the closed shell, and the suction side of the discharge side of rudimentary side compressor 11a and senior side compressor 11b is coupled together by pipe arrangement 11d.And the space in the closed shell is by intermediate-pressure gas, be that the discharge gas of rudimentary side compressor is full of.In addition, the reason of effect intermediate pressure is in closed shell, acting on the power on each position of each compressor and the pressure differential of closed shell interior or exterior space remains in the suitable scope, avoid the bigger power of effect, therefore can be used as high reliability, low vibration, low noise, high efficiency compressor.
And the electric motor for compressor of this two-stage compressor 11 is reverse drive formula two-stage compressors of oppositely controlling.And, utilize the described control device 3 in back, with respect to the ambient atmos variations in temperature, according to required standard control compressor capacity.In addition, in the discharge pipe arrangement of senior side compressor 11b, be provided with the effluent air temp detector 31 that is used to detect from the effluent air temp of senior side compressor 11b discharge.
High-pressure side heat exchanger 12, be made of with heat-exchange tube 12b from the water of the hot water supply water that the water storage boxes 21 that are configured in the hot water feeding unit 2 are sent with heat-exchange tube 12a, importing the refrigerant of importing from the high pressure refrigerant of senior side compressor 11b discharge, the two forms heat exchange relationship.Therefore, the hot water supply water cooling that the cold media gas of the HTHP of discharging from senior side compressor 11b is sent from water storage box 21, this hot water supply water is heated by the heat that the HTHP refrigerant produces.
Electric expansion valve 13, to being reduced pressure by the pressurized gas refrigerant of high-pressure side heat exchanger 12 coolings, it is driven by impulse motor.And, utilize back described control device 3 standard according to the rules to control.
Evaporimeter 14 makes the low-pressure gas-liquid mixing refrigerant that reduced pressure by electric expansion valve 13 and ambient atmos as the thermal source medium carry out heat exchange, makes this refrigerant gasification.In addition, the additional ambient atmos Temperature Detector 32 that is used to detect the ambient atmos temperature that is provided with in this evaporimeter 14.
Hot water feeding unit 2 is furnished with: water storage box 21, hot water circulating pump 22, hot water supply pipe arrangement 23, feedwater pipe arrangement 24.
And the upper and lower of water storage box 21 couples together with the hot water circulation loop P of the involved water of heat-exchange tube 12b with connecting pipings 5,6 with respect to aforementioned water.And, in water storage box 21, utilize the official post of proportion must lean on the top hot water temperature high more more.Therefore, the lower water of temperature of water storage box 21 bottoms is admitted to water heat-exchange tube 12b, is imported to the top of water storage box 21 by water with the higher water of temperature of heat-exchange tube 12b heating, forms hot water circulation loop P by this way, simultaneously, hot water circulating pump 22 is installed in this hot water circulation loop P.In addition, utilize the heating-up temperature detector 33 be arranged on water storage box 21 tops to measure top hot water temperature in the water storage boxes 21, be heating-up temperature.
Hot water supply pipe arrangement 23 is the pipe arrangements that are used for to hot-water supplies such as hot water tap, bathtubs, and it is connected the top of water storage box 21, can supply the temperature in the water storage box 21 higher hot water.In addition, in this hot water supply loop, switch valve 25 is installed.
Feedwater pipe arrangement 24 is the pipe arrangements that can supply common running water in water storage box 21, and it is connected to the bottom of water storage box 21 by check-valves 26, pressure-reducing valve 27.
Below, the control that the operating frequency by 3 pairs of reverse drive formulas of this control device two-stage compressor 11 carries out is described with reference to the accompanying drawings.In addition, Fig. 2 is the control flow of the reverse drive formula two-stage compressor 11 during according to constant turn round of form of implementation 1 after initial setting running is finished.
As shown in the figure, running reverse drive formula two-stage compressor 11 under the initial setting condition after entering constant running, utilizes ambient atmos Temperature Detector 32 to measure ambient atmos temperature (step S1).And, compare (step S2) with preceding ambient atmos temperature when once measuring.Exist for both under the situation of temperature difference at comparative result,, determine the operating frequency (step S3) of electric motor for compressor 11c according to its temperature difference, with this frequency run reverse drive formula two-stage compressor 11 (step S5) according to specified standard.In addition, in this case, determine the operating frequency of reverse drive formula two-stage compressor 11,, perhaps roughly keep certain so that the corresponding corresponding compressor capacity that makes with the decline of ambient atmos temperature roughly reaches setting.In addition, do not have for both under the situation of temperature difference in result relatively, the operating frequency of electric motor for compressor 11c constant (step S4) is with original operating frequency running reverse drive formula two-stage compressor 11 (step S5).And, after the standby stipulated time (step S6), repeat above-mentioned steps.In addition, as this official hour, for grasping ambient atmos temperature inversion situation in detail and between removing, carrying out balance, can consider suitably to be arranged on about about 30 minutes because of the ambient atmos temperature necessity that the fluctuation variation works the mischief up and down at short notice.
Below, explanation utilizes the aperture control that 3 pairs of electric expansion valves of control device 13 carry out according to Fig. 3.The aperture control flow chart of the electric expansion valve 13 when in addition, Fig. 3 is constant running the after initial setting running is over according to form of implementation 1.
As shown in Figure 3, utilize effluent air temp detector 31 to measure the effluent air temp (step S11) of senior side compressor 11b, calculate temperature difference (step S12) with predefined target effluent air temp.And, according to the benchmark of regulation, determine the aperture (operating impulse number) (step S13) of electric expansion valve 13, with this aperture operation electric expansion valve 13 (step S14) according to this temperature difference.In addition, user's target setting effluent air temp arbitrarily in this case can preestablish the target effluent air temp according to the temperature of ambient atmos according to Design of device specification (standard).In addition, in this occasion, need measure the ambient atmos temperature of previous step in advance.(step S15) carries out above-mentioned steps repeatedly after the stand-by time of regulation.The time of carrying out the weak point of degree with respect to the control of general electric expansion valve can be used as this official hour, the stipulated time during with the ambient atmos temperature detection, it doesn't matter.
Formation according to above such form of implementation 1, have ambient atmos Temperature Detector 32 at regular intervals to external world gas temperature detect, according to detected ambient atmos variation of temperature benchmark control compressor capacity according to the rules, simultaneously, the aperture of benchmark control electric expansion valve 13 according to the rules, so even if make the change up and down at short notice of ambient atmos temperature, ambient atmos Temperature Detector 32 can not detect this change yet.Therefore, short time inner compressor ability can size not change, and can stably carry out the aperture control of electric expansion valve 13.Therefore, can prevent that the unstable liquid that causes of aperture control of electric expansion valve 13 from refluxing to compressor, increase the life-span of reverse drive formula two-stage compressor 11.
In addition, owing to detected the ambient atmos temperature every about 30 minutes, thus can not detect the variation of extraneous gas temperature in the short time, and can suitably grasp ambient atmos variation of temperature situation.
In addition, control device 3 is owing to increase the rotating speed of reverse drive formula compressor 11 in the mode that compressor capacity is become cardinal principle certain value or cardinal principle setting with respect to the reduction of detected ambient atmos temperature, so the reduction with respect to the ambient atmos temperature can maintain compressor capacity certain value or setting substantially substantially, can prevent that the heating efficiency of hot water supply water and the temperature of hot water supply water from reducing along with the ambient atmos temperature, keeps certain value or setting substantially substantially.
In addition, freezing cycle device 1 is with the overcritical freezing cycle device of carbon dioxide as the refrigerant of filling, and has not only used and has not had flammable, avirulent natural refrigerant, in the winter time can also well-off high-temperature-hot-water supply water.
And, the compressor that is used in the freezing cycle device 1 is, in closed shell, be built-in with the reverse drive formula two-stage compressor 11 that the space in rudimentary side compressor 11a and senior side compressor 11b, this closed shell is full of by the discharge gas of rudimentary side compressor 11a, thereby, in the freezing cycle device that in the big heat-pump water heater of height pressure differential, uses, compression ratios at different levels reduce, and the running efficiency of compressor is improved.And, around rudimentary side compressor 11a and senior side compressor 11b discharge gas as the rudimentary side compressor 11a of intermediate pressure, thereby, on each position of each stage compressor, very big power be can not act on, high reliability, low vibration, low noise, high efficiency compressor can be used as.
Form of implementation 2
Below, according to Fig. 4～Fig. 6 form of implementation 2 is described.Fig. 4 is the control flow chart of the aperture of the operating frequency of the reverse drive formula two-stage compressor during according to constant running the after initial setting running is over of form of implementation 2 and electric expansion valve, Fig. 5 is expression according to the diagram with respect to the setting example of the compressor operation frequency of ambient atmos temperature and target heating-up temperature of form of implementation 2, and Fig. 6 is the diagram of the setting example of the target effluent air temp of discharging gas of the compressor with respect to ambient atmos temperature and target heating-up temperature in the expression form of implementation 2.
In form of implementation 2, the structure of freezing cycle device 1 and hot water feeding unit 2 is identical with form of implementation 1, by control device 3 carries out the operating frequency control of reverse drive formula two-stage compressor 11 and the aperture of electric expansion valve 13 are controlled, according to needs mutually coordinated mode carry out, its control method is as follows.
As shown in Figure 4, under the initial setting condition, set the regulation aperture of electric expansion valve 13, after the frequency run of reverse drive formula two-stage compressor 11 with regulation, utilize ambient atmos Temperature Detector 32 to measure the temperature (step S21) of ambient atmos.And, according to this ambient atmos temperature with the target heating-up temperature of the corresponding setting of ambient atmos temperature, according to the benchmark of regulation, determine the operating frequency (step S22) of reverse drive formula two-stage compressor 11.And,,, determine the target effluent air temp (step S23) of senior side compressor 11b according to specified standard according to ambient atmos temperature of measuring and the relative target heating-up temperature of setting with the ambient atmos temperature.And, utilize effluent air temp detector 31 to measure the effluent air temp (step S24) of senior side compressor 11b.Then, calculate this effluent air temp and the temperature difference (step S25) of the target effluent air temp determined by step S23,,, determine the aperture (that is operating impulse number) (step S26) of electric expansion valve 13 according to the benchmark of regulation according to this temperature difference.And, according to the operating frequency running reverse drive formula two-stage compressor of determining by step S22 11, with the aperture operation electric expansion valve of determining by step S26 13 (step S27).Then, through (step S28) after the official hour, repetitive operation above-mentioned steps.
In above-mentioned control, the target heating-up temperature of using in step S23 is according to the ambient atmos temperature of measuring and predefined by the target use amount of user's selection.
And the target use amount is selected from " abundance " shown in the table 1, " common ", " saving " three ranks by the user according to user's prediction.In addition, " abundance ", expression are more than " common ", and " saving " represented than " common " still less.
And, when by above during described select target use amount, according to table 1 target setting heating-up temperature.
[table 1]
| The ambient atmos temperature [℃] | Less than 5 | More than 5, less than 15 | More than 15, less than 25 | More than 25 | ||
| | Save | 75 | ?60 | ?60 | ?60 | |
| Common | 75 | ?75 | ?75 | ?75 | ||
| Sufficient | 85 | ?85 | ?85 | ?75 | ||
The target heating-up temperature [℃]
Then, determine the operating frequency of the reverse drive formula two-stage compressor 11 among the abovementioned steps S22 according to Fig. 5.For example, be 30 ℃ if the target heating-up temperature is 60 ℃, ambient atmos temperature, then as from deriving Fig. 5, determine that the operating frequency of reverse drive formula two-stage compressor 11 is approximately 88Hz.
And,, carry out determining of target effluent air temp as shown in Figure 6 according to ambient atmos temperature of in step S23, measuring and the target heating-up temperature selected in advance by the user.For example, be 30 ℃ if the target heating-up temperature is 60 ℃, ambient atmos temperature, then as from deriving Fig. 6, the target effluent air temp is approximately 97 ℃.
And, the stipulated time among the step S28, in the time will grasping the ambient atmos temperature variations in detail, from remove the ambient atmos temperature at short notice up and down fluctuation change the viewpoint of the harm that causes, be arranged on about 30 minutes proper.
Adopt form of implementation 2, detect the ambient atmos temperature at regular intervals, according to detected ambient atmos temperature and the target heating-up temperature set corresponding to the ambient atmos temperature, according to specified standard, the operating frequency of control reverse drive formula two-stage compressor 11 and the aperture of electric expansion valve 13, thereby, carry out with the corresponding running control of the required variation of ambient atmos variations in temperature, hot water can not supplied water and be heated to more than the necessary temperature, can reduce useless running.
And, adopt this form of implementation 2, detect the ambient atmos temperature at regular intervals, according to detected ambient atmos temperature, target heating-up temperature with the use scheduled volume setting that reaches the hot water supply water of selecting by the user corresponding to the ambient atmos temperature, according to specified standard, the operating frequency of control reverse drive formula two-stage compressor 11 and the aperture of electric expansion valve 13, thereby, can grasp the running control of the more detailed variation that needs accordingly with the ambient atmos variations in temperature, can prevent further that supplying water with hot water is heated to more than the necessary temperature, further reduces useless running.
In the form of implementation 1 and 2 of above-mentioned explanation, freezing cycle device 1 is overcritical freezing cycle device, but is not limited to this freezing cycle device, also can adopt common freezing cycle device.
And in aforementioned form of implementation 1 and 2, compressor is a reverse drive formula two-stage compressor 11, is under the situation of reverse drive formula single-stage compressor at this compressor still, also can adopt the present invention.
Because the present invention adopts said structure, so can obtain following effect.
Adopt the described invention of a first aspect of the present invention, detect at regular intervals the ambient atmos temperature, variation corresponding to detected ambient atmos temperature, ability according to specified standard control compressor, simultaneously, according to the aperture of specified standard control electric expansion valve, thereby, even the ambient atmos temperature is up and down fluctuation at short notice, can not detect these fluctuations yet. Therefore, the ability of compressor can not produce size variation at short notice, and the aperture control of electric expansion valve can stably be carried out. Therefore, can prevent the unstable liquid backflow to compressor that causes of aperture control owing to electric expansion valve, the life-span that can improve compressor.
And, adopt the described invention of a second aspect of the present invention, in the described invention of first aspect present invention, owing to approximately detected an ambient atmos temperature in per 30 minutes, so can not detect the ambient atmos variations in temperature in the short time, and, can suitably grasp the situation of change of ambient atmos temperature.
And, adopt the described invention of a third aspect of the present invention, in the present invention aspect first and second in described invention, because the mode that control device makes compressor capacity be roughly steady state value with the decline corresponding to detected ambient atmos temperature is controlled the rotating speed of reverse drive formula compressor, so, corresponding to the decline of ambient atmos temperature, can make the heating efficiency of hot water supply water and the temperature of hot water supply water roughly keep constant value.
And, adopt the described invention of a fourth aspect of the present invention, in the present invention aspect first and second in described invention, because control device makes the ability of compressor roughly keep the mode of certain value to control the rotating speed of reverse drive formula compressor with the decline corresponding to detected ambient atmos temperature, so corresponding to the decline of ambient atmos temperature, can prevent the heating efficiency decline of hot water supply water and the drop in temperature of hot water supply water.
And, adopt the described invention of fifth aspect present invention, has a control device, this control device detects the ambient atmos temperature at regular intervals, according to detected ambient atmos temperature with corresponding to the target heating-up temperature of ambient atmos Temperature Setting, according to specified standard, control the operating frequency of aforementioned reverse drive formula two-stage compressor and the aperture of aforementioned electric expansion valve, thereby, can carry out the running control corresponding to the variation of the needs corresponding with the variation of ambient atmos temperature, hot water can not supplied water and be heated to more than the necessary temperature, can reduce useless running.
And, adopt the described invention of sixth aspect present invention, has a control device, this control device detects the ambient atmos temperature at regular intervals, reach the target heating-up temperature that the hot water of being selected by the user is supplied the use scheduled volume setting of water according to detected ambient atmos temperature with corresponding to the ambient atmos temperature, according to specified standard, control the operating frequency of aforementioned reverse drive formula compressor and the aperture of aforementioned electric expansion valve, thereby, can grasp the running control corresponding to the more detailed variation of the needs of ambient atmos variations in temperature, can prevent further that supplying water with hot water is heated to more than the necessary temp, can further reduce useless running.
And, adopt the described invention of seventh aspect present invention, aspect the present invention the 5th, six in the described invention, owing to approximately detected an ambient atmos temperature every 30 minutes, so can not detect the ambient atmos variations in temperature in the short time, and, can suitably grasp the situation of change of ambient atmos temperature.
And, adopt the described invention of eighth aspect present invention, in aspect the present invention first to seven in any one described invention, because freezing cycle device is the overcritical freezing cycle device that is filled with as the carbon dioxide of refrigerant, so both can use the natural refrigerant with flammable and toxicity, and can also can supply water by the sufficiently high hot water of supply temperature in the winter time again.
And, adopt the described invention of ninth aspect present invention, in the present invention first to the eight aspect in any one described invention, the compressor that in freezing cycle device, adopts, in closed shell, to be built-in with the reverse drive formula two-stage compressor that the space in rudimentary side compressor and senior side compressor, this closed shell is full of by the Exhaust Gas of rudimentary side compressor, thereby, in the freezing cycle device that in the poor larger heat-pump water heater of high-low pressure, uses, compression ratio at different levels is little, can improve the running efficiency of compressor. And, owing to be the Exhaust Gas as the rudimentary side compressor of intermediate pressure around rudimentary side compressor and the senior side compressor, so can in the very large power of each position effect of each stage compressor, not can be used as high reliability, low vibration, low noise, high efficiency compressor.
Claims (9)
1. a heat-pump water heater is furnished with: the freezing cycle device with refrigerant loop that reverse drive formula compressor, high-pressure side heat exchanger, coolant expansion apparatus, evaporator series are coupled together; Store the water storage box of the hot water supply water of the heat pump effect heating that utilizes this freezing cycle device; Control device detects the ambient atmos temperature at regular intervals, and corresponding to detected ambient atmos variations in temperature, according to specified standard, control compressor capacity, while are controlled the aperture of electric expansion valve according to specified standard.
2. heat-pump water heater as claimed in claim 1 is characterized in that: aforementioned control device approximately carried out one time the ambient atmos temperature detection in per 30 minutes.
3. heat-pump water heater as claimed in claim 1 or 2, it is characterized in that: aforementioned control device, in the mode that makes compressor capacity be roughly setting corresponding to detected ambient atmos decrease of temperature the rotating speed of aforementioned reverse drive formula compressor is controlled.
4. heat-pump water heater as claimed in claim 1 or 2 is characterized in that: aforementioned control device is controlled the rotating speed of aforementioned reverse drive formula compressor in the mode that makes compressor capacity be roughly certain value corresponding to the ambient atmos decrease of temperature.
5. a heat-pump water heater comprises: the freezing cycle device with refrigerant loop that reverse drive formula compressor, high-pressure side heat exchanger, coolant expansion apparatus, evaporator series are coupled together; Store the water storage box of the hot water supply water of the heat pump effect heating that utilizes this freezing cycle device; Control device, detect the ambient atmos temperature at regular intervals, according to detected ambient atmos temperature and the target heating-up temperature set corresponding to the ambient atmos temperature, according to specified standard, control the operating frequency of aforementioned reverse drive formula two-stage compressor and the aperture of aforementioned electric expansion valve.
6. a heat-pump water heater comprises: the freezing cycle device with refrigerant loop that reverse drive formula compressor, high-pressure side heat exchanger, coolant expansion apparatus, evaporator series are coupled together; Store the water storage box of the hot water supply water of the heat pump effect heating that utilizes this freezing cycle device; Control device, detect the ambient atmos temperature at regular intervals, the target heating-up temperature of setting according to the predetermined use amount of detected ambient atmos temperature and the hot water supply water selected with respect to the ambient atmos temperature and by the user, according to specified standard, control the operating frequency of aforementioned reverse drive formula compressor and the aperture of aforementioned electric expansion valve.
7. as claim 5 or 6 described heat-pump water heaters, it is characterized in that: aforementioned control device approximately per 30 minutes to external world gas temperature carry out one-time detection.
8. as any one described heat-pump water heater in the claim 1～7, it is characterized in that: aforementioned freezing cycle device is the overcritical freezing cycle device of filling as the carbon dioxide of refrigerant.
9. as any one described heat-pump water heater in the claim 1～8, it is characterized in that: aforementioned reverse drive formula compressor, can adopt to be built-in with rudimentary side compressor and senior side compressor and reverse drive formula two-stage compressor that gas that space in the closed shell is discharged by rudimentary side compressor is full of in closed shell.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001267607A JP4737892B2 (en) | 2001-09-04 | 2001-09-04 | Heat pump type water heater |
| JP267607/2001 | 2001-09-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1403746A true CN1403746A (en) | 2003-03-19 |
| CN1220849C CN1220849C (en) | 2005-09-28 |
Family
ID=19093714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021415919A Expired - Fee Related CN1220849C (en) | 2001-09-04 | 2002-09-03 | Heat pump type hot water supply device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4737892B2 (en) |
| KR (1) | KR100529977B1 (en) |
| CN (1) | CN1220849C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100441977C (en) * | 2004-12-03 | 2008-12-10 | 日立空调·家用电器株式会社 | Teat pump hot water supply device |
| CN101221007B (en) * | 2007-01-08 | 2011-01-12 | 葛建民 | Air source heat pump hot water units |
| CN101660802B (en) * | 2008-08-26 | 2012-05-30 | Lg电子株式会社 | Hot water circulation system associated with heat pump and method for controlling the same |
| CN102575854A (en) * | 2010-09-10 | 2012-07-11 | 松下电器产业株式会社 | Heat medium circulation type heat pump heater |
| CN102840713A (en) * | 2011-06-24 | 2012-12-26 | 松下电器产业株式会社 | Cold/hot water supply apparatus |
| CN102893097A (en) * | 2010-04-15 | 2013-01-23 | 三菱电机株式会社 | Controller for water heater system, program for controlling water heater system, and method for operating water heater system |
| US8657207B2 (en) | 2008-08-26 | 2014-02-25 | Lg Electronics Inc. | Hot water circulation system associated with heat pump and method for controlling the same |
| CN104864591A (en) * | 2015-04-02 | 2015-08-26 | 秦健 | Heat-taking device through circulating pump |
| CN105605774A (en) * | 2016-03-11 | 2016-05-25 | 浙江正理生能科技有限公司 | Heat-pump hot water heater electronic expansion valve control system |
| CN114739013A (en) * | 2022-04-26 | 2022-07-12 | 浙江中广电器集团股份有限公司 | Variable frequency control method of heat pump water heater and variable frequency water heater system |
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| JP5011713B2 (en) * | 2005-11-22 | 2012-08-29 | 株式会社デンソー | Heat pump type water heater |
| JP2007212103A (en) * | 2006-02-13 | 2007-08-23 | Matsushita Electric Ind Co Ltd | Heat pump type hot water supply apparatus |
| JP4592617B2 (en) * | 2006-02-27 | 2010-12-01 | 三洋電機株式会社 | Cooling and heating device |
| JP2011257098A (en) * | 2010-06-11 | 2011-12-22 | Fujitsu General Ltd | Heat pump cycle device |
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| CN109387303B (en) * | 2018-09-12 | 2020-09-08 | 中车青岛四方机车车辆股份有限公司 | Detection method and device of shaft temperature sensor |
| KR102483844B1 (en) * | 2020-12-22 | 2022-12-30 | 에스케이매직 주식회사 | Apparatus for laundary treatment |
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| JPS58217160A (en) * | 1982-06-10 | 1983-12-17 | 松下電器産業株式会社 | Heat-pump water heater |
| JPS61186756A (en) * | 1985-02-15 | 1986-08-20 | Sharp Corp | Solar heat collecting device |
| JPS62261862A (en) * | 1986-05-08 | 1987-11-14 | ダイキン工業株式会社 | Heat pump system |
| JPH0599536A (en) * | 1991-10-07 | 1993-04-20 | Mitsubishi Electric Corp | Heat pump type hot water feeding device |
| JP3291470B2 (en) * | 1998-09-29 | 2002-06-10 | 三洋電機株式会社 | Rotary compressor |
| JP3663942B2 (en) * | 1998-10-02 | 2005-06-22 | 松下電器産業株式会社 | Heat pump water heater |
| JP4259668B2 (en) * | 1999-04-19 | 2009-04-30 | 三洋電機株式会社 | Air conditioner |
| JP3393601B2 (en) * | 1999-09-09 | 2003-04-07 | 株式会社デンソー | Heat pump water heater |
| JP3843683B2 (en) * | 2000-02-07 | 2006-11-08 | 松下電器産業株式会社 | Heat pump hot water supply system |
| JP4218212B2 (en) * | 2001-01-19 | 2009-02-04 | 株式会社デンソー | Water heater |
-
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- 2001-09-04 JP JP2001267607A patent/JP4737892B2/en not_active Expired - Fee Related
-
2002
- 2002-09-03 CN CNB021415919A patent/CN1220849C/en not_active Expired - Fee Related
- 2002-09-03 KR KR10-2002-0052666A patent/KR100529977B1/en not_active IP Right Cessation
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100441977C (en) * | 2004-12-03 | 2008-12-10 | 日立空调·家用电器株式会社 | Teat pump hot water supply device |
| CN101221007B (en) * | 2007-01-08 | 2011-01-12 | 葛建民 | Air source heat pump hot water units |
| US8657207B2 (en) | 2008-08-26 | 2014-02-25 | Lg Electronics Inc. | Hot water circulation system associated with heat pump and method for controlling the same |
| CN101660802B (en) * | 2008-08-26 | 2012-05-30 | Lg电子株式会社 | Hot water circulation system associated with heat pump and method for controlling the same |
| CN102893097B (en) * | 2010-04-15 | 2015-08-05 | 三菱电机株式会社 | Hot-water supply system's control device and hot-water supply system's control program and hot-water supply system's method of operation |
| CN102893097A (en) * | 2010-04-15 | 2013-01-23 | 三菱电机株式会社 | Controller for water heater system, program for controlling water heater system, and method for operating water heater system |
| CN102575854A (en) * | 2010-09-10 | 2012-07-11 | 松下电器产业株式会社 | Heat medium circulation type heat pump heater |
| CN102575854B (en) * | 2010-09-10 | 2015-11-25 | 松下电器产业株式会社 | Heat medium circulation type heat pump heater |
| CN102840713A (en) * | 2011-06-24 | 2012-12-26 | 松下电器产业株式会社 | Cold/hot water supply apparatus |
| CN102840713B (en) * | 2011-06-24 | 2015-11-18 | 松下电器产业株式会社 | Hot and cold water water supply installation |
| CN104864591A (en) * | 2015-04-02 | 2015-08-26 | 秦健 | Heat-taking device through circulating pump |
| CN105605774A (en) * | 2016-03-11 | 2016-05-25 | 浙江正理生能科技有限公司 | Heat-pump hot water heater electronic expansion valve control system |
| CN114739013A (en) * | 2022-04-26 | 2022-07-12 | 浙江中广电器集团股份有限公司 | Variable frequency control method of heat pump water heater and variable frequency water heater system |
| CN114739013B (en) * | 2022-04-26 | 2023-11-14 | 浙江中广电器集团股份有限公司 | Variable frequency control method of heat pump water heater and variable frequency water heater system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100529977B1 (en) | 2005-11-22 |
| CN1220849C (en) | 2005-09-28 |
| JP4737892B2 (en) | 2011-08-03 |
| KR20030020838A (en) | 2003-03-10 |
| JP2003074970A (en) | 2003-03-12 |
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