CN104380002A - Radiation-type air conditioner - Google Patents
Radiation-type air conditioner Download PDFInfo
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- CN104380002A CN104380002A CN201380026039.4A CN201380026039A CN104380002A CN 104380002 A CN104380002 A CN 104380002A CN 201380026039 A CN201380026039 A CN 201380026039A CN 104380002 A CN104380002 A CN 104380002A
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- air conditioner
- valve
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- type air
- radiant
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0089—Systems using radiation from walls or panels
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
- F28F1/20—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being attachable to the element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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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
- F25B2500/00—Problems to be solved
- F25B2500/27—Problems to be solved characterised by the stop of the refrigeration cycle
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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
- F25B2600/15—Control issues during shut down
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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
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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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
- F25B2600/25—Control of valves
- F25B2600/2515—Flow valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Geometry (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A radiation-type air conditioner (1) comprising an outdoor unit (10) and a radiation panel (30) arranged indoors. An outdoor-side heat exchanger (14) and a compressor (12) that circulates a refrigerant to the radiation panel and the outdoor-side heat exchanger are provided inside the outdoor unit. An expansion valve (15) and an electromagnetic valve (25) are arranged in refrigerant pipes (17, 18) connected to the radiation panel. A control unit (40) for the radiation-type air conditioner reduces the opening of the expansion valve and the electromagnetic valve when the compressor that was operating is stopped.
Description
Technical field
The present invention relates to radiant type air conditioner.
Background technology
In the air conditioner of heat pump type of house, in the so-called separate air conditioner that namely off-premises station and indoor set separate, common structure is that off-premises station is provided with heat exchanger and fan, and indoor set is also provided with heat exchanger and fan.To this, be separate air conditioner equally, the heat exchanger that also there is indoor set is radiant panel, does not use fan but the type of being carried out indoor refrigeration by heat radiation or being heated.Patent document 1 illustrates its example.
The air conditioner that patent document 1 is recorded possesses the radiant panel be configured on the ceiling in house.The snakelike inside being configured in radiant panel of refrigerant piping.At Leng Yun Zhuan Time processed, radiant panel heat absorption is to carry out radiation type cooling.When heating running, radiant panel heat radiation heats to carry out radiant type.Radiation type cooling heats does not exist indoor fan to the stirring of air and noise, peace and quiet cosily can carry out cooling and warming.
Patent document 1: flat No. 10-205802 of Japanese Laid-Open Patent Publication
Typically, in compressor operation process, the refrigerant pressure of the ejection side of compressor is high, and the refrigerant pressure of the suction side of compressor is low for air conditioner.In order to the pressure in balanced system cooling system during stopping compressor operation, cold-producing medium moves from the position that pressure is high to the position that pressure is low.In radiant type air conditioner, when such as, in cooling operation process compressor stops, because the cold-producing medium of low temperature flows out and the inflow of the cold-producing medium of high temperature from radiant panel, the temperature of radiant panel is made to increase, so cooled room air is heated.When heating compressor stopping in operation process, the cold-producing medium of high temperature flows out from radiant panel, and the temperature of radiant panel declines, and warm room air is cooled.
Summary of the invention
In view of the foregoing, object is to provide a kind of radiant type air conditioner in the present invention, when stopping compressor in cooling and warming running, continues cooling or heating effect as far as possible.
Radiant type air conditioner of the present invention comprises: radiant panel, is configured in indoor; Outdoor heat exchanger; Compressor, makes cold-producing medium circulate in described radiant panel and described outdoor heat exchanger by refrigerant piping; Control part; And valve, be configured on the described refrigerant piping that is connected with described radiant panel, when described control part makes the described compressor in running become halted state, described control part makes described valve become the state of small guide vane.
In the radiant type air conditioner of said structure, preferred described valve is configured in be become the described refrigerant piping of refrigerant inflow side relative to described radiant panel and becomes the described refrigerant piping both sides of refrigerant outflow side relative to described radiant panel.
In the radiant type air conditioner of said structure, preferred described valve is expansion valve.
In the radiant type air conditioner of said structure, the state of preferred described small guide vane is full cut-off.
According to the present invention, when the compressor in operating becomes halted state, because the valve in refrigerant piping becomes the state of small guide vane, so the cold-producing medium in radiant panel is not easy mobile, the temperature of radiant panel can not sharply change.Therefore, the cooling or heating effect that radiant panel brings can be continued.
Accompanying drawing explanation
Fig. 1 is the brief configuration figure of radiant type air conditioner of the present invention, represents state during cooling operation.
Fig. 2 is the brief configuration figure of radiant type air conditioner of the present invention, represents state when heating running.
Fig. 3 is the brief configuration figure of the 1st embodiment representing radiant panel.
Fig. 4 is the brief configuration figure of the 2nd embodiment representing radiant panel.
Fig. 5 is the sectional view of the 1st embodiment representing radiating part.
Fig. 6 is the sectional view of the 2nd embodiment representing radiating part.
Fig. 7 is the control block diagram of radiant type air conditioner.
Description of reference numerals
1 radiant type air conditioner
10 off-premises stations
11 casings
12 compressors
13 cross valves
14 outdoor heat exchangers
15 expansion valves
16 outside pressure fan
17,18 refrigerant pipings
25 magnetic valves
30 radiant panels
31 casings
32 radiating parts
36 temperature detectors
40 control parts
Detailed description of the invention
The brief configuration of radiant type air conditioner 1 is described based on Fig. 1.Radiant type air conditioner is made up of off-premises station 10 and radiant panel 30.Radiant panel 30 is configured in indoor, is equivalent to the indoor set of common separate air conditioner.
Off-premises station 10 is accommodated with compressor 12, cross valve 13, outdoor heat exchanger 14, expansion valve 15 and outside pressure fan 16 etc. in the inside of casing 11, and described casing 11 is made up of sheet metal component and synthetic resin.Expansion valve 15 uses the expansion valve that can control aperture.
Off-premises station 10 is connected with radiant panel 30 by two refrigerant pipings 17,18.Refrigerant piping 17, for circulating liquid cold-producing medium, adopts the pipe thinner than refrigerant piping 18.Therefore, refrigerant piping 17 is also called " liquid line ", " tubule " etc.Refrigerant piping 18, for circulated gases cold-producing medium, adopts the pipe thicker than refrigerant piping 17.Therefore, refrigerant piping 18 is also called " flue ", " extra heavy pipe " etc.Cold-producing medium such as uses R410a and R32 etc. of HFC class.
In the refrigerant piping of off-premises station 10 inside, the refrigerant piping be connected with refrigerant piping 17 is provided with two-port valve 19, and the refrigerant piping be connected with refrigerant piping 18 is provided with triple valve 20.When outdoor, machine 10 takes off refrigerant piping 17,18, two-port valve 19 and triple valve 20 are closed, with prevent cold-producing medium outdoor machine 10 externally leak.When needing machine 10 outdoor or comprise the whole refrigeration system discharging refrigerant of radiant panel 30, by triple valve 20 discharging refrigerant.In addition, the refrigerant piping between triple valve 25 and cross valve 13 is provided with magnetic valve 25.
Radiant panel 30 is uprightly arranged near indoor wall usually, is that the inside of the casing 31 of rectangle is configured with multiple radiating part 32 in the front shape be made up of sheet metal component and synthetic resin.Although in order to easy and called after " radiating part ", the not only air heat radiation towards periphery when heating running of this component, also absorbs heat from surrounding air when cooling operation.
Radiating part 32 is the cylindrical member of vertical configuration.As shown in Figure 5,6, surround with fin 34 basic structure that the such structure of the refrigerant pipe 33 at center is radiating part 32.Refrigerant pipe 33 and fin 34 are formed by the metal that the heat transfer such as copper and aluminium is good, and intimate contact with one another.In addition, so-called " vertical " is not limited to strict vertical direction herein.Also can be the vertical direction comprising certain inclination.
The fin 34 of Fig. 5 and the fin 34 of Fig. 6 all have the horizontal section shape of the radial expansion of multiple fin.The fin 34 of Fig. 5 is formed as being separated into two-part component in the axial direction, sandwiches refrigerant pipe 33 from front and back.The fin 34 of Fig. 6 is a component, at the partial insertion refrigerant pipe 33 being equivalent to the wheel hub of wheel at center.Certainly, the structure of the radiating part 32 shown in Fig. 5,6 is only illustrate, and can adopt the fin 34 of different section shape, also can combine refrigerant pipe 33 and fin 34 in a different manner.
Multiple (being 7 in the drawings) radiating part 32 is arranged parallel to each other in the inside of casing 31.The front surface of casing 31 is provided with the opening portion 35 of exposing radiating part 32.Multiple radiating part 32 is all connected with refrigerant piping 17,18.In syndeton example shown in Fig. 3, whole radiating parts 32 is connected to refrigerant piping 17,18 side by side.In syndeton example shown in Fig. 4, whole radiating parts 32 is connected with refrigerant piping 17,18 after connecting.
In order to connect multiple radiating part 32, the mode beyond mode shown in Fig. 3,4 can also be adopted.Such as can by multiple radiating part 32 to specify that radical divides into groups, the radiating part 32 belonging to same group is in parallel, then connects each group.Or can also by multiple radiating part 32 to specify that radical divides into groups, the radiating part 32 belonging to same group is connected, more in parallel by each group.
When the running carrying out radiant type air conditioner 1 controls, the temperature at each position must be known.In order to realize this object, off-premises station 10 and radiant panel 30 are configured with temperature detector.In off-premises station 10, outdoor heat exchanger 14 is configured with temperature detector 21, the bleed pipe 12a of the blowing unit as compressor 12 is configured with temperature detector 22, the suction line 12b of the sucting as compressor 12 is configured with temperature detector 23, the refrigerant piping between expansion valve 15 and two-port valve 19 is configured with temperature detector 24.Radiant panel 30 is configured with temperature detector 36.Temperature detector 21,22,23,24,36 is all made up of thermistor.
As shown in Figure 3, although temperature detector 36 is for measuring the temperature of radiating part 32, not be directly installed on radiating part 32, and being mounted on the refrigerant piping 17 of liquid refrigerant.The reason be configured on refrigerant piping 17 by temperature detector 36 is as follows.That is, the temperature due to radiating part 32 is different because of position (particularly upper and lower position) difference, is therefore difficult to determine which position temperature detector 36 is configured in.
The surface temperature of radiating part 32 also depends on how the coolant channel connecting multiple radiating part 32 designs.When coolant channel is single channel, easily produce temperature difference because of the liquid phase change of the pressure loss and cold-producing medium.When coolant channel is multiple passage, there is the possibility that each passage produces temperature difference.In addition, temperature detector covers with metal to improve response to temperature sometimes.When forming the metal of radiating part 32 and being different from the kind of the metal that temperature detector uses, produce potential difference in the existence of its contact site because of dissimilar metal thus cause the possibility of galvanic corrosion.In any case, be all difficult to which position determining temperature detector 36 to be configured in radiating part 32.
If using the installation position of the refrigerant piping 17 of casing 31 inside as temperature detector 36, just can solve the problem.Refrigerant piping 17 is positions that the cold-producing medium being inflated valve 15 throttling when cooling operation flows into, and is the position that the cold-producing medium of the condensation when heating running flows out from radiating part 32.
When cooling operation, because circulation in refrigerant piping 17 has the cold-producing medium of gas-liquid two-phase state (but almost not gasify, but the cold-producing medium of the many state of liquid phase refrigerant), in other words, because the liquid phase of cold-producing medium is with low uncertainty, so the temperature of the temperature of refrigerant piping 17 as radiating part 32 can be processed.On the other hand, when heating running, refrigerant piping 17 becomes the cold portion of mistake (liquid phase portion) of refrigeration system, because liquid refrigerant accumulates, so can not directly the temperature of the temperature of refrigerant piping 17 as radiating part 32 be processed., by suitably revising temperature, the surface temperature of radiating part 32 also can be obtained from the measuring tempeature of temperature detector 36 when heating running.Temperature corrected value determines by experiment.
The installation site of temperature detector 36 is that refrigerant piping 17 is in the part compared with top in casing 31 inside.Select this position aftermentioned as the reason of the installation site of temperature detector 36.
Control part 40 shown in Fig. 7 controls for the entirety of radiant type air conditioner 1.Control part 40 controls, with the desired value making indoor temperature reach user's setting.
Control part 40 pairs of compressors 12, cross valve 13, expansion valve 15, outside pressure fan 16 and magnetic valve 25 send action command.In addition, control part 40 receives the output signal of detected temperatures respectively from temperature detector 21 ~ 24 and temperature detector 36.Control part 40, with reference to the output signal from temperature detector 21 ~ 24 and temperature detector 36, sends operation instruction to compressor 12 and outside pressure fan 16, and sends the instruction of state switching to cross valve 13, expansion valve 15 and magnetic valve 25.
Fig. 1 illustrates the state that radiant type air conditioner 1 carries out cooling operation (dehumidifying running) or defrosting running.Enter outdoor heat exchanger 14 from the cold-producing medium of the HTHP of compressor 12 ejection, carry out heat exchange at this and outdoor air.That is, cold-producing medium dispels the heat to outdoor air.Heat radiation condensation and become liquid cold-producing medium outdoor side heat exchanger 14 be sent to the radiating part of radiant panel 30 by expansion valve 15, reduce pressure and expand and become low-temp low-pressure, thus the surface temperature of radiating part 32 is declined.The air heat absorption indoor of radiating part 32 after surface temperature declines, cools room air thus.The gaseous refrigerant of the low temperature after heat absorption returns compressor 12.The air-flow generated by outside pressure fan 16 promotes that side heat exchanger 14 dispels the heat outdoor.
Fig. 2 illustrates the state that radiant type air conditioner 1 carries out heating running.Now cross valve 13 carries out switching when making the flow direction of cold-producing medium and cooling operation contrary.That is, enter radiating part 32 from the cold-producing medium of the HTHP of compressor 12 ejection, carry out heat exchange at this and room air.That is, cold-producing medium dispels the heat to room air, heating indoor air.Heat radiation condensation and become liquid cold-producing medium and be sent to outdoor heat exchanger 14 from radiating part 32 by expansion valve 15, reduce pressure and expand and the surface temperature of outdoor heat exchanger 14 is declined.The air heat absorption outdoor of outdoor heat exchanger 14 after surface temperature declines.The gaseous refrigerant of the low temperature after heat absorption returns compressor 12.The air-flow generated by outside pressure fan 16 promotes that outdoor heat exchanger 14 absorbs heat.The removing that operates by defrosting is attached to the frost on outdoor heat exchanger 14 because of heat absorption.
Heating in operation process, carrying out temperature detection by temperature detector 36.Temperature detector 36 described above is configured on refrigerant piping 17, not the surface temperature (more precisely the surface temperature of radiating part 32) of direct-detection radiant panel 30.In addition, according to the value of degree of supercooling why sample, the difference of the temperature of refrigerant piping 17 and the surface temperature of radiant panel 30 also changes.Therefore, revise temperature by the degree of supercooling of the temperature prediction radiating part 32 when heating running from refrigerant piping 17, thus the surface temperature of predicting radiation panel 30.As mentioned above, revise temperature to be obtained in advance by test.
As mentioned above, the surface temperature of the radiant panel 30 that control part 40 is revised with reference to the temperature detected temperature detector 36 and obtained, the running that heats carrying out radiant type air conditioner 1 controls.
Heating in operation process, control part 40 checks whether radiant panel 30 reaches the high temperature of more than design temperature.Temperature detection now also can utilize temperature detector 36.So by utilizing temperature detector 36 to check, whether radiant panel 30 reaches the temperature of more than design temperature, namely by the temperature detector 36 of airconditioning control being also used as the temperature detector of protection, can simplify the control system of radiant type air conditioner 1.
When cooling operation (dehumidifying running) or defrosting running, the temperature that temperature detector 36 can be detected processes as the surface temperature of radiating part 32.Therefore, temperature adjustmemt such when not needing to heat running.
As mentioned above, because temperature detector 36 is arranged in the part being positioned at casing 31 of refrigerant piping 17, so coolant channel when can be cooling operations with the coolant channel of radiant panel 30 or coolant channel when heating running has nothing to do, detect the surface temperature of radiant panel 30 in same position.Therefore, control method is changed when running when cooling operation and need not be heated.
When cooling operation (dehumidifying running), radiating part 32 produces dew.Because temperature detector 36 is installed in the part that refrigerant piping 17 is in compared with top in casing 31, even if so the dew of radiating part 32 remains in the below (accepted by the not shown drain pan be configured in below radiating part 32 and discharge water) of radiating part 32 as discharge water, temperature detector 36 also can not contact with discharge water.Therefore, need not worry that the detected temperatures of temperature detector 36 produces error, or temperature detector 36 breaks down.Although serious less than radiating part 32, refrigerant piping 17 also can produce dew, and in order to reduce described dew water mitigation, the position, top temperature detector 36 being configured in refrigerant piping 17 is also very effective.
Even if when being connected by multiple radiating part 32 as shown in Figure 4, temperature detecting part 36 is also configured in the position, top of refrigerant piping 17.That is, temperature detector 36 being configured in the position not easily producing dew is the item that must observe.
In cooling operation process (dehumidifying operation process in) or heat in operation process when needing to stop compressor 12, expansion valve 15 and magnetic valve 25 are switched to the state of small guide vane by control part 40.At this moment the movement of cold-producing medium becomes difficulty, not easily moves, so the temperature avoiding radiant panel 30 sharply changes because the cold-producing medium in radiant panel 30 becomes.Thus, the cooling or heating effect that radiant panel 30 can be kept to bring.Here the implication of " small guide vane " also comprises " full cut-off ".
If made the common air conditioner of the non-radiative formula of indoor air circulation by indoor pressure fan, then, when stopping compressor when cooling operation, indoor pressure fan can remain in operation.It is such that user can be allowed to continue sensation is nice and cool.Because radiant type air conditioner does not have pressure fan in indoor, so can not enjoy the cooling feeling of air-supply.If the cold-producing medium of temperature when maintaining cooling operation in radiant panel, although also can not cooling feeling be enjoyed for a long time.When maintaining the cold-producing medium of temperature when heating running in radiant panel, although also can not keep warm for a long time equally.When so the compressor in running being set to halted state, the method valve in refrigerant piping being set to small guide vane plays significant especially effect in radiant type air conditioner.
In addition, at once valve opening is strengthened with the pressure balanced situation obtaining cold-producing medium after stopping compared to compressor, due to the cold-producing medium after cooled cold-producing medium or heating can be kept in radiant panel for a long time, so cooling or heating indoor air can be extended further.Therefore, control (when the surface temperature of radiant panel reaches target temperature, to stop compressor in hot break-make, the surface temperature of radiant panel starts the control of compressor again when departing from target temperature) in, compressor from stopping to the time lengthening again started, thus saves the energy.In addition, when utilizing timing shutdown to stop cooling and warming running and when user's remote controller etc. stops cooling and warming running, due to the effect of cooling and warming also temporarily can be continued, so effectively the energy can be used.
Compared to the indoor side heat exchanger of common separate air conditioner being made indoor air circulation by indoor pressure fan, radiant panel quite maximizes (such as sometimes volume ratio close to twice.In addition, whole of ceiling and the whole face of wall is sometimes occupied).Therefore, by carrying out control of the present invention, effectively the energy can be used.
As the stopping of compressor 12 and opportunity that expansion valve 15, magnetic valve 25 are switched to small guide vane, can first stop compressor 12, also can first expansion valve 15, magnetic valve 25 be switched to small guide vane.Or also can start simultaneously.Formerly when stopping compressor 12, impact when expansion valve 15 and magnetic valve 25 being switched to small guide vane can be reduced, but cold-producing medium can not be avoided to move during expansion valve 15 and magnetic valve 25 are switched to small guide vane conversely.When formerly expansion valve 15, magnetic valve 25 being switched to small guide vane, although it is mobile that cold-producing medium can be made immediately to be difficult to, there is the problem bringing impact to refrigeration system conversely.In conjunction with the intensity of the structural element of refrigeration system, can consider to select which kind of mode.
When again starting the compressor 12 of halted state, preferably first expansion valve 15 little for aperture and magnetic valve 25 are set to the large state of aperture.This is to not produce pressure differential when compressor 12 starts again, thus easily starts.If the state of small guide vane (the aperture of such as valve exists from 0 (full cut-off) to the stage of 512 (standard-sized sheets), being the aperture of 1 ~ 10 degree), high-pressure side and level pressure side obtain pressure balance gradually.Therefore, when valve being set to standard-sized sheet before again starting compressor 12, compared with when till before again starting with compressor 12, aperture keeps the state of full cut-off to be set to standard-sized sheet, low-pressure side and on high-tension side pressure differential diminish.Thus, can bring before again starting compressor 12 and will not easily send the effect of cold-producing medium noise during valve standard-sized sheet.In addition, as long as found the state of suitable small guide vane by test.In addition, as long as obtained pressure balanced opportunity before compressor 12 starts again, even if be not passable when being about to again start yet.
Substitute the variable magnetic valve 25 of above-mentioned this aperture, small guide vane can be used to be full cut-off, the magnetic valve only having secondary state that large aperture is standard-sized sheet.In addition, between expansion valve 15 and two-port valve 19, magnetic valve can be set in addition, and this magnetic valve is set to small guide vane.
In the present embodiment, expansion valve 15 not only for purposes originally, is also used for the purposes making cold-producing medium be difficult to movement.So by making expansion valve 15 bear two kinds of functions, structure can be simplified.But, also can configure the magnetic valve same with magnetic valve 25 in expansion valve 15 side.
In addition, in the present embodiment, by arranging magnetic valve 25 beyond the expansion valve 15, be constructed as follows form: on the refrigerant piping becoming refrigerant inflow side relative to radiant panel 30 and the refrigerant piping both sides becoming refrigerant outflow side relative to radiant panel 30, configure valve., also can cancel magnetic valve 25, only allow expansion valve 15 bear the effect making cold-producing medium be difficult to movement.
Explanation so far be all the vertical configuration of radiating part 32, but also can by radiating part 32 horizontal arrangement.As long as multiple thin plates of the axes normal with refrigerant pipe 33 are spaced and configure by fin 34 now.
Be explained above embodiments of the present invention, but scope of the present invention is not limited thereto, can various distortion is carried out within a range not departing from the gist of the invention and implement.
Industrial applicibility
The present invention can be widely used in radiant type air conditioner.
Claims (5)
1. a radiant type air conditioner, is characterized in that comprising:
Radiant panel, is configured in indoor;
Outdoor heat exchanger;
Compressor, makes cold-producing medium circulate in described radiant panel and described outdoor heat exchanger by refrigerant piping;
Control part; And
Valve, is configured on the described refrigerant piping that is connected with described radiant panel,
When described control part makes the described compressor in running become halted state, described control part makes described valve become the state of small guide vane.
2. radiant type air conditioner according to claim 1, it is characterized in that, described valve is configured in be become the described refrigerant piping of refrigerant inflow side relative to described radiant panel and becomes the described refrigerant piping both sides of refrigerant outflow side relative to described radiant panel.
3. radiant type air conditioner according to claim 1, is characterized in that, described valve is expansion valve.
4. radiant type air conditioner according to claim 2, is characterized in that, described valve is expansion valve.
5. according to the radiant type air conditioner in Claims 1 to 4 described in any one, it is characterized in that, the state of described small guide vane is full cut-off.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-117643 | 2012-05-23 | ||
| JP2012117643A JP5869955B2 (en) | 2012-05-23 | 2012-05-23 | Radiant air conditioner |
| PCT/JP2013/064322 WO2013176211A1 (en) | 2012-05-23 | 2013-05-23 | Radiation-type air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104380002A true CN104380002A (en) | 2015-02-25 |
| CN104380002B CN104380002B (en) | 2017-02-15 |
Family
ID=49623892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380026039.4A Expired - Fee Related CN104380002B (en) | 2012-05-23 | 2013-05-23 | Radiation-type air conditioner |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5869955B2 (en) |
| CN (1) | CN104380002B (en) |
| SE (1) | SE1451397A1 (en) |
| WO (1) | WO2013176211A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839497A (en) * | 2017-02-07 | 2017-06-13 | 海信（山东）空调有限公司 | A kind of recuperated cycle system and its control method and air-conditioning |
| CN107246688A (en) * | 2017-07-11 | 2017-10-13 | 严继光 | Using the heating and refrigerating air-conditioning of radiation heat transfer |
| CN108116183A (en) * | 2016-11-28 | 2018-06-05 | 杭州三花研究院有限公司 | A kind of control method of heat management system |
| CN108775663A (en) * | 2018-08-06 | 2018-11-09 | 天津大学 | The indoor heat exchanger of air-source heat pump air conditioner Blower-free and built-in heat storage medium |
| CN111615608A (en) * | 2018-02-19 | 2020-09-01 | 大金工业株式会社 | Air conditioner |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398507B (en) * | 2013-08-16 | 2016-01-27 | 广西钧富凰建筑环境技术有限公司 | A kind of heat pump and air conditioner |
| US10663198B2 (en) | 2013-08-16 | 2020-05-26 | Guangxi University | Heat pump system and air-conditioner |
| CN106931567A (en) * | 2015-12-30 | 2017-07-07 | 第摩码人居环境科技（北京）有限公司 | A kind of new each door type radiation air-conditioner unit |
| KR102213722B1 (en) * | 2019-08-27 | 2021-02-08 | 주식회사 쓰리에이치굿스 | Cooling-Heating Device of Radiation Convection Pannel Structure |
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- 2013-05-23 CN CN201380026039.4A patent/CN104380002B/en not_active Expired - Fee Related
- 2013-05-23 WO PCT/JP2013/064322 patent/WO2013176211A1/en active Application Filing
- 2013-05-23 SE SE1451397A patent/SE1451397A1/en not_active Application Discontinuation
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| JPS612447Y2 (en) * | 1980-04-17 | 1986-01-27 | ||
| CN1123398A (en) * | 1994-07-15 | 1996-05-29 | 三洋电机株式会社 | Cooling apparatus |
| JPH1019394A (en) * | 1996-06-28 | 1998-01-23 | Daikin Ind Ltd | Air conditioner |
| JPH10205802A (en) * | 1997-01-27 | 1998-08-04 | Sanyo Electric Co Ltd | Radiation type air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108116183A (en) * | 2016-11-28 | 2018-06-05 | 杭州三花研究院有限公司 | A kind of control method of heat management system |
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| CN106839497A (en) * | 2017-02-07 | 2017-06-13 | 海信（山东）空调有限公司 | A kind of recuperated cycle system and its control method and air-conditioning |
| CN107246688A (en) * | 2017-07-11 | 2017-10-13 | 严继光 | Using the heating and refrigerating air-conditioning of radiation heat transfer |
| CN111615608A (en) * | 2018-02-19 | 2020-09-01 | 大金工业株式会社 | Air conditioner |
| CN111615608B (en) * | 2018-02-19 | 2022-04-05 | 大金工业株式会社 | Air conditioner |
| CN108775663A (en) * | 2018-08-06 | 2018-11-09 | 天津大学 | The indoor heat exchanger of air-source heat pump air conditioner Blower-free and built-in heat storage medium |
| WO2020029582A1 (en) * | 2018-08-06 | 2020-02-13 | 天津大学 | Fan-free indoor heat exchanger for air source heat pump air conditioner and having built-in heat storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5869955B2 (en) | 2016-02-24 |
| JP2013245830A (en) | 2013-12-09 |
| WO2013176211A1 (en) | 2013-11-28 |
| CN104380002B (en) | 2017-02-15 |
| SE1451397A1 (en) | 2014-11-20 |
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