CN103314261A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN103314261A CN103314261A CN201280005265XA CN201280005265A CN103314261A CN 103314261 A CN103314261 A CN 103314261A CN 201280005265X A CN201280005265X A CN 201280005265XA CN 201280005265 A CN201280005265 A CN 201280005265A CN 103314261 A CN103314261 A CN 103314261A
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- China
- Prior art keywords
- indoor
- temperature
- panel
- valve
- radiant panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
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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
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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
- 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
- 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
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
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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
- F25B2313/006—Compression machines, plants or systems with reversible cycle not otherwise provided for two pipes connecting the outdoor side to the indoor side with multiple indoor units
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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
- F25B2313/021—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit
- F25B2313/0213—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit the auxiliary heat exchanger being only used during heating
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/031—Sensor arrangements
- F25B2313/0314—Temperature sensors near the indoor heat exchanger
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
In order to detect abnormalities in a valve mechanism, this indoor unit has an indoor heat exchanger disposed inside the indoor unit, and a radiation panel disposed on the outer surface of the indoor unit. A refrigerant circuit connecting the indoor unit and an outdoor unit has: a main flow path on which an outdoor electrically-operated valve (64), an outdoor heat exchanger, and a compressor (60) are disposed in that order; a first path on which the indoor heat exchanger is disposed; and a second flow path on which the radiation panel is disposed. The first flow path connects a branched part disposed downstream of the compressor (60) on the main flow path, and a merging part disposed upstream of the outdoor electrically-operated valve (64). The second flow path connects the branched part and the merging part to the first flow path in parallel. An indoor electrically-operated valve (23) is disposed on the second flow path between the radiation panel and the merging part. In addition, an abnormality detector (73) for detecting abnormalities that occur in the indoor electrically-operated valve (23) is provided.
Description
Technical field
The present invention relates to have the air conditioner of indoor set, this indoor set has indoor heat converter and radiant panel.
Background technology
About air conditioner, known have an air conditioner with indoor set, and this indoor set is connected with off-premises station by refrigerant loop, and this indoor set has the indoor heat converter that section within it arranges and the radiant panel (for example, with reference to patent documentation 1) that arranges on its surface.In the refrigerant loop of patent documentation 1 disclosed air conditioner, indoor heat converter and radiant panel are connected in parallel.
The prior art document
Patent documentation
Patent documentation 1: Japanese kokai publication hei 5-280762 communique
Summary of the invention
The problem that invention will solve
In above-mentioned air conditioner, consider that the downstream of the radiant panel when heating running arranges valve system, be used for adjusting the flow of the cold-producing medium of supplying with radiant panel.In this air conditioner, when cooling operation, valve system is closed valve, is in cold-producing medium and does not flow to the state that radiant panel, cold-producing medium only flow to indoor heat converter.When hot blast heated running, valve system was closed valve, is in cold-producing medium and does not flow to the state that radiant panel, cold-producing medium only flow to indoor heat converter.When radiation heated running, valve system was driven valve, is in refrigerant flow direction radiant panel and indoor heat converter both sides' state.
In above-mentioned refrigerant loop, will produce variety of issue in the situation that the valve system generation is unusual.For example, when cooling operation, in the situation that cold-producing medium leaks from the valve system that should be closed valve, the cold-producing medium of low temperature flows in the pipe arrangement of radiant panel, produces frosting at radiant panel.In addition, when hot blast heated running, in the situation that cold-producing medium leaks from the valve system that should be closed valve, the cold-producing medium of high temperature passed through in the pipe arrangement of radiant panel, thereby the temperature of the radiant panel that originally should not rise rises.In addition, when radiation heated running, in the situation that valve system closes in valve or the situation of aperture less than the aperture of necessity, whether the temperature of the radiant panel that should rise or not.In the loop that indoor heat converter and radiant panel are connected in series, equally also produce this unusual problem that results from valve system.
The object of the invention is to, provide and to detect the unusual air conditioner of valve system generation.
For the means of dealing with problems
The air conditioner of the first invention is the air conditioner with refrigerant loop that indoor set and off-premises station are coupled together, and described indoor set has: indoor heat converter, and it arranges in the mode relative with fan in this indoor set inside; And the radiant panel of being located at the surface of this indoor set, described refrigerant loop has: valve system, and it makes the state of the described radiant panel of refrigerant flow direction and makes cold-producing medium not flow to the switching of the state of described radiant panel; And the abnormality detection unit, the described valve system of its temperature detection according to described radiant panel produces unusual situation.
In this air conditioner, the abnormality detection unit can produce unusual situation according to the temperature detection valve system of radiant panel.Therefore, can suppress owing to valve system unusual produces following problem: the frosting of the radiant panel during cooling operation, or hot blast when heating running and the radiant panel temperature of radiation when heating running be not suitable temperature etc.
The air conditioner of the second invention is that described refrigerant loop has: primary flow path is provided with the mechanism of decompressor, outdoor heat converter and compressor successively in this primary flow path according to the described air conditioner of the first invention; The 1st stream is provided with described indoor heat converter in the 1st stream, heating when running, the branching portion that the 1st stream arranges the downstream of the described compressor in described primary flow path and couple together in the interflow section of the upstream side setting of the described mechanism of decompressor; And the 2nd stream, in the 2nd stream, be provided with described radiant panel, the 2nd stream is connected in parallel described branching portion and described interflow section and described the 1st stream, described valve system be located in the described refrigerant loop from described radiant panel to the section of described interflow.
In addition, so-called " valve system be located in the refrigerant loop from radiant panel to the section of interflow " comprises that also valve system is located at the situation of interflow section.
In this air conditioner, in the air conditioner that the 1st stream that is provided with indoor heat converter and the 2nd stream that is provided with radiant panel are connected in parallel, can detect valve system and produce unusual situation.
The air conditioner of the 3rd invention is according to the described air conditioner of the first or second invention, when described valve system is switched to the state that makes cold-producing medium not flow to described radiant panel and cold-producing medium flows in the situation of described radiant panel, described abnormality detection unit inspection is that described valve system has produced unusually.
In this air conditioner, when valve system is switched to the state that makes cold-producing medium not flow to radiant panel and cold-producing medium flows in the situation of radiant panel, the abnormality detection unit can detect as valve system and produce unusually.
The air conditioner of the 4th invention is to invent described air conditioner according to any one in the first～the 3rd invention, and described air conditioner has: Indoor Thermal exchange temperature sensor, and it is located at described indoor heat converter; And panel temperature sensor, it is located between the Department of Radiation and described valve system of described radiant panel, described abnormality detection unit detects described valve system and produces unusual situation according to by the detected temperature of described panel temperature sensor with by the detected temperature of described Indoor Thermal exchange temperature sensor.
In this air conditioner, will compare by the detected temperature of panel temperature sensor with by the detected temperature of Indoor Thermal exchange temperature sensor, can detect the open and-shut mode of valve system.Therefore, in the time should being in the state that makes cold-producing medium not flow to radiant panel at valve system, but detect that valve system is opened and the situation of refrigerant flow direction radiant panel under, perhaps when when valve system should be in the state that makes the refrigerant flow direction radiant panel, but detect in the situation that valve system closure and cold-producing medium do not flow to radiant panel, can detect as valve system and produced unusually.
The air conditioner of the 5th invention is that the pressure when at cooling operation in the described indoor heat converter is that described abnormality detection unit inspection is that described valve system has produced unusually in the situation below the predetermined value according to the described air conditioner of the 4th invention.
In this air conditioner, when cooling operation, under the condition that the pressure in indoor heat converter (low pressure) does not fully descend, indoor temperature is with smaller by the difference of the detected temperature of Indoor Thermal exchange temperature sensor.In this case, even the positive normally close valve of valve system and when being in cold-producing medium and not flowing to the state of radiant panel, by the detected temperature of panel temperature sensor with also more approaching by the detected temperature of Indoor Thermal exchange temperature sensor.Therefore, although valve system is not unusual, also might detect mistakenly as valve system produces unusually, the refrigerant flow direction radiant panel.Therefore, by this situation is got rid of, unusual error detection that can check valve mechanism.
The air conditioner of the 6th invention is according to the described air conditioner of the 4th or the 5th invention, described air conditioner also has the indoor temperature transmitter that detects indoor temperature, in the situation that by the detected temperature of described indoor temperature transmitter be more than the predetermined value by the difference of the detected temperature of described Indoor Thermal exchange temperature sensor, described abnormality detection unit inspection is that described valve system has produced unusually.
In this air conditioner, by will by the detected temperature of indoor temperature transmitter with got rid of unusual error detection that can check valve mechanism by the smaller situation of the difference of the detected temperature of Indoor Thermal exchange temperature sensor.
The invention effect
As narrating in the above description, can access following effect according to the present invention.
In the first invention, the abnormality detection unit can produce unusual situation according to the temperature detection valve system of radiant panel.Therefore, can suppress owing to valve system unusual produces following problem: the frosting of the radiant panel during cooling operation, or hot blast when heating running and the radiant panel temperature of radiation when heating running be not suitable temperature etc.
In the second invention, in the air conditioner that the 1st stream that is provided with indoor heat converter and the 2nd stream that is provided with radiant panel are connected in parallel, can detect valve system and produce unusual situation.
In the 3rd invention, when valve system is switched to the state that makes cold-producing medium not flow to radiant panel and cold-producing medium flows in the situation of radiant panel, the abnormality detection unit can detect as valve system and produce unusually.
In the 4th invention, will compare by the detected temperature of panel temperature sensor with by the detected temperature of Indoor Thermal exchange temperature sensor, can detect the open and-shut mode of valve system.Therefore, in the time should being in the state that makes cold-producing medium not flow to radiant panel at valve system, but detect that valve system is opened and the situation of refrigerant flow direction radiant panel under, perhaps when when valve system should be in the state that makes the refrigerant flow direction radiant panel, but detect in the situation that valve system closure and cold-producing medium do not flow to radiant panel, can detect as valve system and produced unusually.
In the 5th invention, when cooling operation, under the condition that the pressure in indoor heat converter (low pressure) does not fully descend, indoor temperature is with smaller by the difference of the detected temperature of Indoor Thermal exchange temperature sensor.In this case, even the positive normally close valve of valve system and when being in cold-producing medium and not flowing to the state of radiant panel, by the detected temperature of panel temperature sensor with also more approaching by the detected temperature of Indoor Thermal exchange temperature sensor.Therefore, although valve system is not unusual, also might detect mistakenly as valve system produces unusually, the refrigerant flow direction radiant panel.Therefore, by this situation is got rid of, unusual error detection that can check valve mechanism.
In the 6th invention, by will by the detected temperature of indoor temperature transmitter with got rid of unusual error detection that can check valve mechanism by the smaller situation of the difference of the detected temperature of Indoor Thermal exchange temperature sensor.
Description of drawings
Fig. 1 is the loop diagram of structure in general of the air conditioner of expression embodiments of the present invention, is when being illustrated in cooling operation and the figure that flows of the cold-producing medium during the hot blast running.
Fig. 2 is the loop diagram of structure in general of the air conditioner of expression embodiments of the present invention, is the figure that flows of the cold-producing medium when being illustrated in radiation and heating running.
Fig. 3 is the stereogram of the indoor set of Figure 1 and Figure 2.
Fig. 4 is the cutaway view along the IV-IV line of indoor set shown in Figure 3.
Fig. 5 is the block diagram of structure in general of the control part of expression control air conditioner.
Fig. 6 detects the curve map that prevents the condition of error detection when unusual during at cooling operation for explanation in abnormity detection portion shown in Figure 5.
Fig. 7 is be used to illustrating that abnormity detection portion shown in Figure 5 heats when running at hot blast and detects the curve map of the condition when unusual.
Fig. 8 is be used to illustrating that abnormity detection portion shown in Figure 5 heats when running in radiation and detects the curve map of the condition when unusual.
Fig. 9 be expression undertaken by abnormity detection portion shown in Figure 5 cooling operation the time the flow chart of the step processed of abnormality detection.
Figure 10 is the flow chart of the step processed of hot blast that expression is undertaken by the abnormity detection portion shown in Figure 5 abnormality detection when heating running.
Figure 11 is the flow chart of the step processed of radiation that expression is undertaken by the abnormity detection portion shown in Figure 5 abnormality detection when heating running.
Figure 12 is the loop diagram of structure in general of the air conditioner of expression modified embodiment of the present embodiment.
The specific embodiment
Below, the embodiment of air conditioner 1 of the present invention is described.
The overall structure of＜air conditioner 1 〉
As depicted in figs. 1 and 2, the air conditioner 1 of present embodiment have be arranged on indoor indoor set 2, be arranged on outdoor off-premises station 6 and remote controller 9(with reference to Fig. 5).Indoor set 2 has the indoor temperature transmitter 24 of the temperature in indoor heat converter 20, radiant panel 30, electric room valve 23 and the sensing chamber that relatively arranges with indoor fan 21.In addition, off-premises station 6 has outdoor fan 63, the outdoor motor-driven valve 64(mechanism of decompressor of compressor 60, four-way switching valve 61, outdoor heat converter 62, near configuration outdoor heat converter 62).
In addition, air conditioner 1 has the refrigerant loop 10 that indoor set 2 and off-premises station 6 are coupled together.Refrigerant loop 10 has primary flow path 11, is provided with successively outdoor motor-driven valve 64, outdoor heat converter 62 and compressor 60 in this primary flow path 11.The suction side pipe arrangement of compressor 60 be connected side line and be connected with four-way switching valve 61.Heating when running (as described in detail in the back, when cold-producing medium is mobile along the direction shown in the solid arrow among Fig. 1 in refrigerant loop 10), the part in the downstream of the compressor 60 in primary flow path 11 is provided with branching portion 10a, is provided with the 10b of interflow section in the part of the upstream side of outdoor motor-driven valve 64.And refrigerant loop 10 also has: the 1st stream 12 is provided with indoor heat converter 20, the 1 streams 12 branching portion 10a and the 10b of interflow section is coupled together in the 1st stream 12; And the 2nd stream 13, in the 2nd stream 13, be provided with radiant panel 30, the 2 streams 13 branching portion 10a and the 10b of interflow section and the 1st stream 12 are connected in parallel.
Be provided with electric room valve (valve system) 23 between radiant panel 30 in the 2nd stream 13 and the 10b of interflow section.And the both sides of the radiant panel 30 in the 2nd stream 13 are provided with panel input temp sensor 25 and panel output temperature sensor 26.More particularly, panel input temp sensor 25 is located at the ratio Department of Radiation 35(described later of radiant panel 30 with reference to Fig. 4 when heating running) by in the pipe arrangement of upstream side.Panel output temperature sensor 26 is located at radiant panel 30 when heating running ratio Department of Radiation 35 leans in the pipe arrangement of upstream side by the downstream and than electric room valve 23.
In addition, be provided with accumulator 65 between the suction side of the compressor 60 in refrigerant loop 10 and the four-way switching valve 61, be provided with ejection temperature sensor 66 between the ejection side of the compressor 60 in refrigerant loop 10 and the four-way switching valve 61.In addition, be provided with outdoor heat exchange temperature sensor 68 at outdoor heat converter 62.
The air conditioner 1 of present embodiment can carry out cooling operation, hot blast heats running and radiation heats running.Cooling operation is to make cold-producing medium not flow to radiant panel 30, and the running that refrigerant flow direction indoor heat converter 20 is freezed, it is to make cold-producing medium not flow to radiant panel 30 that hot blast heats running, and makes refrigerant flow direction indoor heat converter 20 carry out the running that hot blast heats.It is to make refrigerant flow direction indoor heat converter 20 carry out hot blast to heat that radiation heats running, makes simultaneously refrigerant flow direction radiant panel 30 carry out the running that radiation heats.
Flowing of cold-producing medium in the refrigerant loop 10 during about various running uses Fig. 1 and Fig. 2 to describe.
When cooling operation, electric room valve 23 is closed valve, and four-way switching valve 61 is switched to the state that is shown in broken lines among Fig. 1.Therefore, shown in the dotted arrow among Fig. 1, the high-temperature high-pressure refrigerant that sprays from compressor 60 passes through four-way switching valve 61 inflow outdoor heat exchangers 62.And the cold-producing medium that is condensed in outdoor heat converter 62 is depressurized via outdoor motor-driven valve 64, and then inflow indoor heat exchanger 20.And the cold-producing medium of evaporation flows into compressor 60 by four-way switching valve 61 and accumulator 65 in indoor heat converter 20.In addition, by the electric room valve 23 that is closed valve, so that the cold-producing medium after being depressurized via outdoor motor-driven valve 64 does not flow in the 2nd stream 13 than the side of electric room valve 23 by radiant panel 30.
When hot blast heated running, electric room valve 23 was closed valve, and four-way switching valve 61 is switched among Fig. 1 with the state shown in the solid line.Therefore, shown in the solid arrow among Fig. 1, the high-temperature high-pressure refrigerant that sprays from compressor 60 passes through four-way switching valve 61 inflow indoor heat exchangers 20.And the cold-producing medium that is condensed in indoor heat converter 20 is depressurized via outdoor motor-driven valve 64, and then inflow outdoor heat exchanger 62.And the cold-producing medium of evaporation flows into compressor 60 by four-way switching valve 61 and accumulator 65 in outdoor heat converter 62.In addition, by the electric room valve 23 that is closed valve, so that do not flow to the 2nd stream 13 a side than the electric room valve 23 closing stream 10b of section from the cold-producing medium of compressor 60 ejection.That is, in the 2nd stream 13, form the state that cold-producing medium is stranded in the upstream side of electric room valve 23.
When radiation heated running, electric room valve 23 was driven valve, and four-way switching valve 61 is switched among Fig. 2 with the state shown in the solid line.Therefore, shown in the solid arrow among Fig. 2, the high-temperature high-pressure refrigerant that sprays from compressor 60 passes through four-way switching valve 61 inflow indoor heat exchangers 20 and radiant panel 30.And the cold-producing medium that is condensed in indoor heat converter 20 and radiant panel 30 is depressurized via outdoor motor-driven valve 64, and then inflow outdoor heat exchanger 62.And the cold-producing medium of evaporation flows into compressor 60 by four-way switching valve 61 and accumulator 65 in outdoor heat converter 62.
The structure of＜indoor set 2 〉
Below, the structure of indoor set 2 is described.
As shown in Figure 3, the indoor set 2 of present embodiment has rectangular shape on the whole, is installed near the indoor floor.In the present embodiment, indoor set 2 floats approximately with the distance floor that the state of 10cm is installed on the wall.In addition, in the following description, the direction that will protrude from the wall that indoor set 2 is installed is called " the place ahead ", and the direction that it is opposite is called " rear ".In addition, with left and right directions shown in Figure 3 referred to as " left and right directions ", with above-below direction referred to as " above-below direction ".
As shown in Figure 4, indoor set 2 mainly has housing 4 and is incorporated in internal unit and the front grids 42 such as indoor fan 21 in the housing 4, indoor heat converter 20, blow-off outlet unit 46, parts of electric unit 47.As described in detail in the back, housing 4 has the main suction inlet 4a that forms at its lower wall and auxiliary suction inlet 4b, the 4c that forms at its antetheca.In addition, the upper wall at housing 4 is formed with blow-off outlet 4d.In indoor set 2, by the driving of indoor fan 2, will be positioned near the floor air intake from main suction inlet 4a, also from auxiliary suction inlet 4b, 4c air amount.And, in indoor heat converter 20, the air that sucks is heated or the reconciliation process such as cooling.Then, the air after being in harmonious proportion is blown out from blow-off outlet 4d, make it to indoor backflow.
At this, each internal unit that is incorporated in the housing 4 is described.
Below indoor heat converter 20, dispose the drain pan 22 that extends along left and right directions.And, below drain pan 22, dispose parts of electric unit 47.
Blow-off outlet unit 46 is disposed at the top of indoor fan 21, is used for the air that will blow out from indoor fan 21 to the blow-off outlet 4d guiding of the upper wall that is formed at housing 4.Blow-off outlet unit 46 has near the horizontal blade 46a that is disposed at the blow-off outlet 4d.The wind direction of the above-below direction of the air stream that horizontal blade 46a change blows out from blow-off outlet 4d, and carry out the switching of blow-off outlet 4d.
At filter maintaining part 42a lower filter 43 and upper filter 44 are installed.As shown in Figure 4, extended downwards from the above-below direction substantial middle part of front heat exchanger 20a by the lower filter 43 that filter maintaining part 42a keeps, and its bottom tilts to oblique rear.The lower end of lower filter 43 is positioned near the end edge of main suction inlet 4a.And upper filter 44 extends upward from the above-below direction substantial middle part of front heat exchanger 20a.Utilize these lower filter 43 and upper filter 44 along fore-and-aft direction with the space segmentation between front heat exchanger 20a and the front panel 5.
Blow out mouth mask 51 and cover blow-off outlet unit 46.And, be formed with blow-off outlet 4d at the upper wall that blows out mouth mask 51 as mentioned above.Be provided with the 51a of front panel section at the front surface that blows out mouth mask 51.The 51a of front panel section has along the long rectangular shape of left and right directions.
The essentially rectangular shape of growing about radiant panel 30 has.Radiant panel 30 mainly is made of the radiant panel 31 of aluminum and the resinous heat shield 32 of installing at the back side of radiant panel 31.Radiant panel 31 is positioned at the below of the 51a of front panel section that blows out mouth mask 51.As shown in Figure 4, a part that the pipe arrangement that consists of refrigerant loop 10 is installed at the back side of radiant panel 31 is panel pipe arrangement 36.In addition, in radiant panel 30, the part that radiant panel 31 contacts with panel pipe arrangement 36 is Department of Radiation 35.
Open and close the below that panel 52 releasably is installed on the radiant panel 31 of radiant panel 30.Opening and closing panel 52 has along the long rectangular shape of left and right directions.As shown in Figure 4, the upper end of the above-below direction position of the upper end of switching panel 52 and front grid 42 is roughly the same.As mentioned above, the lower end of switching panel 52 consists of the part of main suction inlet 4a.Therefore, by unloading switching panel 52 front grid 42 is exposed, can carry out the lower filter 43 of the in front filter maintaining part 42a installation of grid 42 and the loading and unloading of upper filter 44.
＜remote controller 9 〉
By the user utilize the target temperature (indoor design temperature) of the beginning that 9 pairs of air conditioners that consist of as mentioned above 1 of remote controller turn round/operation that stops, the setting of operation mode, indoor temperature setting, blow out the setting of air quantity etc.
＜control part 7 〉
Below, the control part 7 of controlling air conditioner 1 is described with reference to Fig. 5.
As shown in Figure 5, control part 7 has storage part 70, electric room valve control part 72, abnormity detection portion 73, indoor fan control part 74, compressor control section 75, outdoor motor-driven valve control section 76.
In storage part 70, store various running settings, the control program relevant with air conditioner 1, carry out the needed tables of data of this control program etc.Set about running, comprise the target temperature (indoor design temperature) such as indoor temperature by the mode of being set by user's remote controller 9 and the mode of in advance air conditioner 1 being set.In the air conditioner 1 of present embodiment, the target temperature range of radiant panel 30 is redefined for predetermined temperature range (for example 50～55 ℃).In addition, also can set according to the operation of remote controller 9 target temperature range of radiant panel 30.
The aperture of motor-driven valve 23 in electric room valve control part 72 control rooms.When cooling operation or hot blast heat when running, electric room valve control part 72 closes valve with electric room valve 23.And when radiation heated running, electric room valve control part 72 was according to the aperture of motor-driven valve 23 in the temperature-controlled chamber of radiant panel 30.Specifically, according to respectively by the operation values of panel input temp sensor 25 and panel output temperature sensor 26 detected temperature, calculate the surface temperature (predicted value) of radiant panel 30, and the aperture of motor-driven valve 23 in the control room, so that the predicted value of the surface temperature of this radiant panel 30 (following referred to as the radiant panel temperature) reaches panel target temperature range (for example 50～55 ℃).In addition, under the detected value of panel input temp sensor 25 is situation more than the predetermined value (for example 80 ℃), electric room valve 23 is closed valve.
Abnormity detection portion 73 is according to the temperature of radiant panel 30, and motor-driven valve 23 produces unusual situation in the sensing chamber.That is, when cooling operation and hot blast heat when running, leak so that in the situation of the panel pipe arrangement 36 of refrigerant flow direction radiant panel 30 from the electric room valve 23 that should close valve at cold-producing medium, detect as electric room valve 23 and produced unusually.And, heat when running in radiation, close valve, cold-producing medium fully at electric room valve 23 and do not flow in the situation of panel pipe arrangement 36 of radiant panel 30, detect as electric room valve 23 and produced unusually.Specifically, when cooling operation, abnormity detection portion 73 bases are by indoor temperature transmitter 24 detected temperature (following referred to as indoor temperature Ta), by panel output temperature sensor 26 detected temperature (following referred to as panel pipe arrangement temperature T P) with by Indoor Thermal exchange temperature sensor 27 detected temperature (following referred to as Indoor Thermal exchange temperature Te), and motor-driven valve 23 produces unusual situation in the sensing chamber.In addition, when hot blast heats when running or radiation and heats running, produce unusual situation according to motor-driven valve in panel pipe arrangement temperature T P and the Indoor Thermal exchange temperature Te sensing chamber 23.
When cooling operation, if that electric room valve 23 produces is unusual, cold-producing medium leaks from the electric room valve 23 that should close valve, the cold-producing medium that then flows into the low temperature of the 2nd stream 13 from the 10b of interflow section flows into than electric room valve 23 by the pipe arrangement in downstream (radiant panel 30 sides).Therefore, 26 detected panel pipe arrangement temperature T P descend by the panel output temperature sensor, and reach by below the Indoor Thermal exchange temperature sensor 27 detected Indoor Thermal exchange temperature Te that arrange in the indoor heat converter 20 that carries out heat exchange.That is, the condition of 73 pairs of electric room valves of abnormity detection portion 23 abnormality detection of carrying out is (formula 1) below satisfying.
TP-Te＜=0deg(formula 1)
In addition, in the present embodiment, only the temperature of the cold-producing medium that flows out from outdoor motor-driven valve 64 when enough low, cold-producing medium flows into the pipe arrangement in the radiant panel 30 radiant panel 30 might the situation of frostings under, detect into electric room valve 23 unusually.Therefore, the condition of the abnormality detection that 73 pairs of electric room valves of abnormity detection portion 23 carry out also need satisfy following (formula 2), (formula 3) except above-mentioned (formula 1).
TP＜=32 ℃ (formula 2)
Te＜=32 ℃ (formula 3)
In addition, for example off-premises station 6 is the off-premises stations that can connect many interconnection systems of many indoor sets, and is inferior in the situation that many indoor sets that are connected with off-premises station 6 turn round simultaneously, and the pressure (low pressure) in the indoor heat converter 20 can not fully descend sometimes.In this case, indoor temperature Ta, panel pipe arrangement temperature T P and Indoor Thermal exchange temperature Te reach roughly the same temperature, although thereby electric room valve 23 do not produce and unusually might satisfy above-mentioned (formula 1) yet.Therefore, in order to prevent this error detection, except above-mentioned (formula 1)～(formula 3), the condition of the abnormality detection that (formula 4) below also satisfying carried out as 73 pairs of electric room valves of abnormity detection portion 23.
Ta-Te＞=5deg(formula 4)
In addition, in the situation that the difference of indoor temperature Ta and Indoor Thermal exchange temperature Te is less than 5deg, even when electric room valve 23 produces unusual and refrigrant leakage, as long as relative humidity is below 80%, radiant panel 30 just can not frosting.
According to above-mentioned (formula 4), only have zone shown in Figure 6 (I) become can sensing chamber in the unusual zone of motor-driven valve 23.Namely, be higher than indoor temperature Ta(namely at Indoor Thermal exchange temperature Te, Ta-Te＜0deg), do not need in the unusual zone (zone that (II) illustrates among the figure) of motor-driven valve 23 in the sensing chamber, and the difference of indoor temperature Ta and Indoor Thermal exchange temperature Te is smaller (namely, 0deg＜=Ta-Te＜5deg), mistakenly in the sensing chamber in the unusual zone (zone that (III) illustrates among the figure) of motor-driven valve 23, do not carry out the abnormality detection of electric room valve 23.
Namely, when cooling operation, by indoor temperature transmitter 24 detected indoor temperature Ta, all satisfy in the situation of above-mentioned (formula 1)～(formula 4) by panel output temperature sensor 26 detected panel pipe arrangement temperature T P with by Indoor Thermal exchange temperature sensor 27 detected Indoor Thermal exchange temperature Te, abnormity detection portion 73 detect for electric room valve 23 unusual.
When hot blast heats running, if unusual, electric room valve 23 leakages of cold-producing medium from being closed valve that electric room valve 23 produces, the high temperature refrigerant that then flows into the 2nd stream 13 from branching portion 10a passes through the pipe arrangement of radiant panel 30 and electric room valve 23, and flows out from the 2nd stream 13.Therefore, 26 detected panel pipe arrangement temperature T P rise by the panel output temperature sensor, and reach by more than the Indoor Thermal exchange temperature sensor 27 detected Indoor Thermal exchange temperature Te that arrange in the indoor heat converter 20 that carries out heat exchange.That is, the condition of 73 pairs of electric room valves of abnormity detection portion 23 abnormality detection of carrying out is (formula 5) below satisfying.
Te-TP＜=0deg(formula 5)
In addition, in the present embodiment, only, the pipe arrangement of cold-producing medium radiant panel 30 in higher in the temperature from the cold-producing medium of compressor 60 ejection by the time radiant panel 30 reach in the situation of high temperature to a certain degree, detect into electric room valve 23 unusually.Therefore, the condition of the abnormality detection that 73 pairs of electric room valves of abnormity detection portion 23 carry out also need satisfy following (formula 6), (formula 7) except above-mentioned (formula 5).
TP＞=43 ℃ (formula 6)
Te＞=43 ℃ (formula 7)
Namely, consider the surface temperature (following referred to as panel temperature TP0) of radiant panel 30 and the relation of Indoor Thermal exchange temperature Te, as shown in Figure 7, to only have panel temperature TP0 be more than 40 ℃ and Indoor Thermal exchange temperature Te be zone (zone that (I) illustrates among the figure) more than 43 ℃ become can sensing chamber in the unusual zone of motor-driven valve 23.Namely, be more than 40 ℃ such as panel temperature TP0 and Indoor Thermal exchange temperature Te is lower than in 43 ℃ of zones (zone that (II) illustrates among the figure) under the state that can not produce in real-world operation like this, and panel temperature TP0 is lower than 40 ℃, does not need the unusual of motor-driven valve 23 in the sensing chamber and mistakenly in the sensing chamber in the unusual zone (zone that (III) illustrates among the figure) of motor-driven valve 23, does not carry out the abnormality detection of electric room valve 23.
Namely, when hot blast heats running, all satisfying in the situation of above-mentioned (formula 5)～(formula 7) by panel output temperature sensor 26 detected panel pipe arrangement temperature T P with by Indoor Thermal exchange temperature sensor 27 detected Indoor Thermal exchange temperature Te, it is that electric room valve 23 is unusual that abnormity detection portion 73 detects.
When radiation heated running, in the situation that electric room valve 23 produces unusually, electric room valve 23 is closed valve, the high temperature refrigerant that flows into the 2nd stream 13 from branching portion 10a was stranded in than electric room valve 23 by in the pipe arrangement of upstream side (radiant panel 30 sides).Therefore, 26 detected panel pipe arrangement temperature T P do not rise by the panel output temperature sensor, and the difference of Indoor Thermal exchange temperature Te and panel pipe arrangement temperature T P increases.That is, the condition of 73 pairs of electric room valves of abnormity detection portion 23 abnormality detection of carrying out is (formula 8) below satisfying.
Te-TP＞=35deg(formula 8)
In addition, be that 10 ℃, Indoor Thermal exchange temperature are 55 ℃ in the situation that electric room valve 23 closes valve, indoor temperature fully, the difference of Indoor Thermal exchange temperature Te and panel pipe arrangement temperature T P reaches 35deg.
In addition, in the present embodiment, even when electric room valve 23 closes valve, in the temperature rising situation to a certain degree of radiant panel 30, motor-driven valve 23 unusual in the sensing chamber not, only in the situation that the temperature of not expecting radiant panel 30 rises, sensing chamber in motor-driven valve 23 unusually.Therefore, the condition of the abnormality detection that 73 pairs of electric room valves of abnormity detection portion 23 carry out also need satisfy following (formula 9), (formula 10) except above-mentioned (formula 8).
TP＜=60 ℃ (formula 9)
Te＜=60 ℃ (formula 10)
That is, consider the relation of panel temperature TP0 and Indoor Thermal exchange temperature Te, only have zone shown in Figure 8 (I) become can sensing chamber in the unusual zone of motor-driven valve 23.Namely, in the zone (zone that (II) illustrates among the figure) under the state that to be higher than Indoor Thermal exchange temperature Te(at panel temperature TP0 be Te-TP0＜0deg), can not produce in real-world operation, and the difference of Indoor Thermal exchange temperature Te and panel temperature TP0 is smaller (is 0deg＜=Te-TP0＜35deg), can not carries out or not the abnormality detection of electric room valve 23 in the zone (zone that (III) illustrates among the figure) of the abnormality detection of electric room valve 23.
Namely, when radiation heats running, all satisfying in the situation of above-mentioned (formula 8)～(formula 10) by panel output temperature sensor 26 detected panel pipe arrangement temperature T P with by Indoor Thermal exchange temperature sensor 27 detected Indoor Thermal exchange temperature Te, it is that electric room valve 23 is unusual that abnormity detection portion 73 detects.
Indoor fan control part 74 is according to the operation mode, the indoor design temperature that utilize remote controller 9 to set and blow out air quantity, by indoor temperature transmitter 24 detected indoor temperatures, the rotating speed of control room internal fan 21.
The aperture of motor-driven valve 64 outside outdoor motor-driven valve control section 76 control rooms.Specifically, the aperture of motor-driven valve 64 outside the control room is so that reach optimum temperature under this operating condition by ejection temperature sensor 66 detected temperature.Optimum temperature is to determine according to the operation values of having used Indoor Thermal exchange temperature and outdoor heat exchange temperature etc.
The abnormality detection of＜abnormity detection portion 73 is processed 〉
At this, the step that the 23 unusual abnormality detection of motor-driven valve in the sensing chamber that is undertaken by abnormity detection portion 73 are processed describes.
When cooling operation, at first as shown in Figure 9, obtain by indoor temperature transmitter 24 detected indoor temperature Ta, by panel output temperature sensor 26 detected panel pipe arrangement temperature T P and by Indoor Thermal exchange temperature sensor 27 detected Te(step S11).Whether the difference of then, judging indoor temperature Ta and Indoor Thermal exchange temperature Te is 5deg above (step S12).And, in the situation that the difference of indoor temperature Ta and Indoor Thermal exchange temperature Te less than 5deg (step S12: no), might detect mistakenly as electric room valve 23 will be unusual, thereby does not enter next step, but turn back to above-mentioned step S11.
On the other hand, in the situation that the difference of indoor temperature Ta and Indoor Thermal exchange temperature Te is (step S12: be) more than the 5deg, judge whether the difference of panel pipe arrangement temperature T P and Indoor Thermal exchange temperature Te is 0deg following (step S13).At this, in the situation that the difference of panel pipe arrangement temperature T P and Indoor Thermal exchange temperature Te is greater than 0deg (step S13: no), think electric room valve 23 by positive normally close valve, do not have the leakage of cold-producing medium, thereby do not enter next step, but turn back to above-mentioned step S11.
In addition, in the situation that the difference of panel pipe arrangement temperature T P and Indoor Thermal exchange temperature Te is (step S13: be) below the 0deg, think that cold-producing medium leaks from the electric room valve 23 that should be closed valve.Then, judge that at step S14 panel pipe arrangement temperature T P is whether as below 32 ℃, judge that at step S15 whether Indoor Thermal exchange temperature Te is as below 32 ℃.When in the situation that step S14 panel pipe arrangement temperature T P greater than 32 ℃ (step S14: no) or in the situation that step S15 Indoor Thermal exchange temperature Te greater than 32 ℃ (step S15: no), think that radiant panel 30 can not produce frosting, thereby do not enter next step, but turn back to above-mentioned step S11.
On the other hand, when in the situation that step S14 panel pipe arrangement temperature T P be (step S14: be) below 32 ℃, be (step S15: be) below 32 ℃ at step S15 Indoor Thermal exchange temperature Te, detect as electric room valve 23 and produced unusually (step S16).
When hot blast heats running, at first as shown in figure 10, obtain by panel output temperature sensor 26 detected panel pipe arrangement temperature T P and by Indoor Thermal exchange temperature sensor 27 detected Te(step S21).Whether the difference of then, judging Indoor Thermal exchange temperature Te and panel pipe arrangement temperature T P is 0deg following (step S22).At this, in the situation that the difference of Indoor Thermal exchange temperature Te and panel pipe arrangement temperature T P is greater than 0deg (step S22: no), think electric room valve 23 by positive normally close valve, do not have the leakage of cold-producing medium, thereby do not enter next step, but turn back to above-mentioned step S21.
In addition, in the situation that the difference of Indoor Thermal exchange temperature Te and panel pipe arrangement temperature T P is (step S22: be) below the 0deg, think that cold-producing medium leaks from the electric room valve 23 that should be closed valve.Then, judge that at step S23 panel pipe arrangement temperature T P is whether as more than 43 ℃, judge that at step S24 whether Indoor Thermal exchange temperature Te is as more than 43 ℃.When in the situation that step S23 panel pipe arrangement temperature T P less than 43 ℃ (step S23: no) or in the situation that step S24 Indoor Thermal exchange temperature Te less than 43 ℃ (step S24: no), think the temperature of radiant panel 30 does not have how (degree that needs the abnormality detection of electric room valve 23) rises, thereby do not enter next step, but turn back to above-mentioned step S21.
On the other hand, when in the situation that panel pipe arrangement temperature T P is (step S23: be) more than 43 ℃ among the step S23, Indoor Thermal exchange temperature Te is (step S24: be) more than 43 ℃ in step S24, detects as electric room valve 23 and produced unusually (step S25).
When radiation heats running, at first as shown in figure 11, obtain by panel output temperature sensor 26 detected panel pipe arrangement temperature T P and by Indoor Thermal exchange temperature sensor 27 detected Te(step S31).Whether the difference of then, judging Indoor Thermal exchange temperature Te and panel pipe arrangement temperature T P is 35deg above (step S32).At this, in the situation that the difference of Indoor Thermal exchange temperature Te and panel pipe arrangement temperature T P, thinks that electric room valve 23 driven valve less than 35deg (step S22: no), thereby does not enter next step, but turn back to above-mentioned step S31.
In addition, in the situation that the difference of Indoor Thermal exchange temperature Te and panel pipe arrangement temperature T P is (step S32: be) more than the 35deg, think that the electric room valve 23 that be driven valve closes valve.Then, judge that at step S33 panel pipe arrangement temperature T P is whether as below 60 ℃, judge that at step S34 whether Indoor Thermal exchange temperature Te is as below 60 ℃.When in the situation that step S33 panel pipe arrangement temperature T P greater than 60 ℃ (step S33: no) or in the situation that step S34 Indoor Thermal exchange temperature Te greater than 60 ℃ (step S34: no), do not enter next step, but turn back to above-mentioned step S31.
On the other hand, when in the situation that step S33 panel pipe arrangement temperature T P be (step S33: be) below 60 ℃, be (step S34: be) below 60 ℃ at step S34 Indoor Thermal exchange temperature Te, detect as electric room valve 23 and produced unusually (step S35).
In addition, produced in the unusual situation for electric room valve 23 when in above-mentioned each abnormality detection is processed, detecting, notified the user abnormal such as the demonstration that utilizes luminous displaing part 49 etc.
The feature of the air conditioner 1 of＜present embodiment 〉
In the air conditioner 1 of present embodiment, control part 7 has the abnormity detection portion 73 that motor-driven valve in the sensing chamber 23 produces unusual situation, electric room valve 23 make refrigerant flow direction radiant panel 30 panel pipe arrangement 36 state and make cold-producing medium not flow to the switching of state of the panel pipe arrangement 36 of radiant panel 30.Therefore, can utilize the unusual situation of motor-driven valve 23 generations in abnormity detection portion 73 sensing chamber.Therefore, can suppress the unusual following problem that produces owing to electric room valve 23: the frosting of the radiant panel 30 during cooling operation, or hot blast when heating running and the surface temperature of the radiant panel 30 of radiation when heating running unusually.
In addition, the refrigerant loop 10 of the air conditioner 1 of present embodiment has: primary flow path 11 is provided with outdoor motor-driven valve 64, outdoor heat converter 62 and compressor 60 successively in this primary flow path 11; The 1st stream 12, in the 1st stream 12, be provided with indoor heat converter 20, heating when running, the branching portion 10a that the 1st stream 12 arranges the downstream of the compressor 60 in primary flow path 11 and couple together at the 10b of interflow section of the upstream side setting of outdoor motor-driven valve 64; And the 2nd stream 13, in the 2nd stream 13, be provided with radiant panel 30, the 2 streams 13 branching portion 10a and the 10b of interflow section and the 1st stream 12 are connected in parallel.And, electric room valve 23 be located in the refrigerant loop 10 from radiant panel 30 to the 10b of interflow section.Therefore, at the 1st stream 12 that is provided with indoor heat converter 20 be provided with in the air conditioner 1 that the 2nd stream 13 of radiant panel 30 is connected in parallel, can sensing chamber in the unusual situation of motor-driven valve 23 generations.
In addition, in the air conditioner 1 of present embodiment, abnormity detection portion 73 is according to by the panel temperature sensor 26 detected panel pipe arrangement temperature T P that arrange between the Department of Radiation 35 of radiant panel 30 and electric room valve 23 with by the Indoor Thermal exchange temperature sensor 27 detected Indoor Thermal exchange temperature Te that are located at indoor heat converter 20, the unusual situation of motor-driven valve 23 generations sensing chamber in.Therefore, panel pipe arrangement temperature T P and Indoor Thermal exchange temperature Te are compared, can sensing chamber in the open and-shut mode of motor-driven valve 23.Therefore, when in the situation that electric room valve 23 should close valve the time, but detect cold-producing medium and leak from electric room valve 23, perhaps when in the situation that electric room valve 23 should drive valve the time, but detect electric room valve 23 and close valve, can detect as valve system and produced unusually.
In addition, in the air conditioner 1 of present embodiment, when cooling operation, only limit in the situation that be more than the 5deg by the difference of indoor temperature transmitter 24 detected indoor temperature Ta and Indoor Thermal exchange temperature Te, abnormity detection portion 73 detects and has produced unusually for electric room valve 23.Therefore, get rid of by the situation that the difference of indoor temperature Ta and Indoor Thermal exchange temperature Te is smaller, can suppress the unusual error detection of electric room valve 23.
Above, be illustrated with reference to the accompanying drawings about embodiments of the present invention, but can not be interpreted as that concrete structure is defined in these embodiments.Scope of the present invention does not lie in the explanation of above-mentioned embodiment, and is to utilize the disclosed content of claims, and comprises with claims and be equal to all changes in meaning and the scope.
In the above-described embodiment, illustrated that the refrigerant loop 10 that indoor set 2 and off-premises station 6 are coupled together has: be provided with the 1st stream 12 of indoor heat converter 20 and the 2nd stream 13 that is connected in parallel with the 1st stream 12, in the 2nd stream 13, be provided with the situation of radiant panel 30, but be not limited to this, indoor heat converter 20 and radiant panel 30 also can be connected in series.
Namely, as shown in figure 12, the refrigerant loop 110 of the air conditioner 101 of modified embodiment of the present embodiment has the primary flow path 111 of ring-type, in this primary flow path 111 outdoor motor-driven valve 64, outdoor heat converter 62, compressor 60, radiant panel 30 and indoor heat converter 20 is connected in turn.The ejection side line of compressor 60 and suction side pipe arrangement are connected with four-way switching valve 61.Be respectively equipped with branching portion 101a, 101b in the both sides of radiant panel 30, the two ends of branch's stream 112 are connected with branching portion 101a, 101b.In addition, branching portion 101a is between indoor heat converter 20 and radiant panel 30, and branching portion 101b is positioned at the branching portion 101a opposition side with respect to radiant panel 30.In branching portion 101a, be provided with triple valve 123.
Between the Department of Radiation 35 of branching portion 101b and radiant panel 30, be provided with panel input temp sensor 25, between the Department of Radiation 35 of branching portion 101a and radiant panel 30, be provided with panel output temperature sensor 26.
In refrigerant loop 110, when cooling operation, four-way switching valve 61 is switched to the state that is shown in dotted line among Figure 12.In addition, triple valve 123 is in and makes from the refrigerant flow direction branch stream 112 of indoor heat converter 20 but do not flow to the state of radiant panel 30.Therefore, shown in the dotted arrow among Figure 12, the high-temperature high-pressure refrigerant that sprays from compressor 60 passes through four-way switching valve 61 inflow outdoor heat exchangers 62.And, after the cold-producing medium that is condensed in outdoor heat converter 62 is depressurized via outdoor motor-driven valve 64, inflow indoor heat exchanger 20.In addition, the cold-producing medium of evaporation flows into compressor 60 by branch's stream 112, four-way switching valve 61 and accumulator 65 in indoor heat converter 20.
When hot blast heated running, four-way switching valve 61 was switched to the state shown in the solid line among Figure 12.In addition, triple valve 123 is in to make and does not flow through radiant panel 30 from the cold-producing medium of compressor 60 ejection but flow through the state of branch's stream 112.Therefore, shown in the solid arrow among Figure 12, the high-temperature high-pressure refrigerant that sprays from compressor 60 passes through four-way switching valve 61 and branch's stream 112 inflow indoor heat exchangers 20.And, after the cold-producing medium that is condensed in indoor heat converter 20 is depressurized via outdoor motor-driven valve 64, inflow outdoor heat exchanger 62.In addition, the cold-producing medium of evaporation flows into compressor 60 by four-way switching valve 61 and accumulator 65 in outdoor heat converter 62.
When radiation heated running, four-way switching valve 61 was switched to the state shown in the solid line among Figure 12.In addition, triple valve 123 is in to make and flows through radiant panel 30 from the cold-producing medium of compressor 60 ejection but do not flow through the state of branch's stream 112.Therefore, shown in the solid arrow among Figure 12, the high-temperature high-pressure refrigerant that sprays from compressor 60 flows into radiant panels 30 by four-way switching valve 61, and then inflow indoor heat exchanger 20.And, after the cold-producing medium that is condensed in radiant panel 30 and indoor heat converter 20 is depressurized via outdoor motor-driven valve 64, inflow outdoor heat exchanger 62.In addition, the cold-producing medium of evaporation flows into compressor 60 by four-way switching valve 61 and accumulator 65 in outdoor heat converter 62.
In the air conditioner 101 of this variation, with above-mentioned embodiment in the same manner, can utilize the abnormity detection portion 73 of control part 7 to detect triple valves 123 and produce unusual situation, this triple valve 123 make refrigerant flow direction radiant panel 30 panel pipe arrangement 36 state and make cold-producing medium not flow to the switching of state of the panel pipe arrangement 36 of radiant panel 30.
In addition, in above-mentioned variation, in the primary flow path 111 of the ring-type of refrigerant loop 110, outdoor motor-driven valve 64, outdoor heat converter 62, compressor 60, radiant panel 30 and indoor heat converter 20 are connected in turn, but are not limited to this.That is, also can be that out of position with radiant panel 30 and indoor heat converter 20 is connected in turn outdoor motor-driven valve 64, outdoor heat converter 62, compressor 60, indoor heat converter 20 and radiant panel 30.In this case, the two ends of branch's stream 112 are connected with the branching portion that arranges in the both sides of radiant panel 30 respectively.In addition, make refrigerant flow direction radiant panel 30 panel pipe arrangement 36 state and make cold-producing medium not flow to the triple valve 123 of switching of state of the panel pipe arrangement 36 of radiant panel 30, be located at the branching portion that is positioned at the opposition side position of indoor heat converter 20 sides across radiant panel 30.
In addition, in the above-described embodiment, illustrated that electric room valve 23 is located at radiant panel 30 in the refrigerant loop 10 and the situation between the 10b of interflow section, but be not limited to this.For example, also can be, triple valve be located at the 10b of interflow section, and this triple valve is used as electric room valve 23.
In addition, this situation has been described in the above-described embodiment: abnormity detection portion 73 is according to by panel output temperature sensor 26 detected panel pipe arrangement temperature T P and the Indoor Thermal exchange temperature Te that arrange between the Department of Radiation 35 of radiant panel 30 and electric room valve 23, motor-driven valve 23 produces unusual situation in the sensing chamber, but is not limited to this.Namely, for example also can be, according to by panel input temp sensor 25 detected temperature and Indoor Thermal exchange temperature Te, motor-driven valve 23 produces unusual situation in the sensing chamber, and this panel input temp sensor 25 is arranged on the opposition side of electric room valve 23 with respect to the Department of Radiation 35 of radiant panel 30.
In addition, this situation has been described in the above-described embodiment: when cooling operation, in the situation that the difference of indoor temperature Ta and Indoor Thermal exchange temperature Te is more than the predetermined value, abnormity detection portion 73 detects and has produced unusually for electric room valve 23, but is not limited to this.Pressure in indoor heat converter 20 (low pressure) is in the situation below the predetermined value, abnormity detection portion 73 by motor-driven valve 23 in the sensing chamber unusually, can prevent error detection.Therefore, also can be in the situation that the difference of indoor temperature Ta and panel pipe arrangement temperature T P is more than the predetermined value, detects as electric room valve 23 and produced unusually.
In addition, this situation has been described in the above-described embodiment: when radiation heated running, in the situation that electric room valve 23 closes valve fully, abnormity detection portion 73 detected and has produced unusually for electric room valve 23, but is not limited to this.Namely, not only in the situation that electric room valve 23 closes valve fully, in the aperture of electric room valve 23 situation less than the aperture of necessity (making the surface temperature of radiant panel 30 reach the aperture of panel target temperature range), also can detect as electric room valve 23 and produced unusually.
In addition, this situation has been described in the above-described embodiment: when in the situation that all satisfy during cooling operation (formula 1)～(formula 4), in the situation that hot blast all satisfies (formula 5)～(formula 7) when heating running, in the situation that (formula 8)～(formula 10) all satisfied in radiation when heating running, detection has produced unusually for electric room valve 23, but is not limited to this.That is, when in the situation that satisfy at least during cooling operation (formula 1), in the situation that hot blast satisfies (formula 5) when heating running at least, in the situation that radiation is satisfied (formula 8) when heating running at least, detect as electric room valve 23 has produced unusually and get final product.In addition, the numerical value of specifically enumerating in (formula 1)～(formula 8) only is an example, can suitably change.
Utilizability on the industry
Adopt the present invention can detect the unusual of valve system.
Label declaration
1 air conditioner; 2 indoor sets; 6 off-premises stations; 10 refrigerant loops; The 10a branching portion; 10b interflow section; 11 primary flow path; 12 the 1st streams; 13 the 2nd streams; 20 indoor heat converters; 21 indoor fans; 23 electric room valves (valve system); 24 indoor temperature transmitters; 26 panel output temperature sensors (panel temperature sensor); 27 Indoor Thermal exchange temperature sensors; 30 radiant panels; 35 Departments of Radiation; 60 compressors; 62 outdoor heat converters; 64 outdoor motor-driven valves (mechanism of decompressor); 73 abnormity detection portion (abnormality detection unit); 123 triple valves (valve system).
Claims (6)
1. air conditioner, this air conditioner have the refrigerant loop that indoor set and off-premises station are coupled together, it is characterized in that,
Described indoor set has: indoor heat converter, and it arranges in the mode relative with fan in this indoor set inside; And the radiant panel of being located at the surface of this indoor set,
Described refrigerant loop has:
Valve system, it makes the state of the described radiant panel of refrigerant flow direction and makes cold-producing medium not flow to the switching of the state of described radiant panel; And
The abnormality detection unit, the described valve system of its temperature detection according to described radiant panel produces unusual situation.
2. air conditioner according to claim 1 is characterized in that,
Described refrigerant loop has:
Primary flow path is provided with the mechanism of decompressor, outdoor heat converter and compressor successively in this primary flow path;
The 1st stream is provided with described indoor heat converter in the 1st stream, heating when running, the branching portion that the 1st stream arranges the downstream of the described compressor in described primary flow path and couple together in the interflow section of the upstream side setting of the described mechanism of decompressor; And
The 2nd stream is provided with described radiant panel in the 2nd stream, the 2nd stream is connected in parallel described branching portion and described interflow section and described the 1st stream,
Described valve system be located in the described refrigerant loop from described radiant panel to the section of described interflow.
3. air conditioner according to claim 1 and 2 is characterized in that,
When described valve system is switched to the state that makes cold-producing medium not flow to described radiant panel and cold-producing medium flows in the situation of described radiant panel, described abnormality detection unit inspection is that described valve system has produced unusually.
4. the described air conditioner of any one is characterized in that according to claim 1～3,
Described air conditioner has:
Indoor Thermal exchange temperature sensor, it is located at described indoor heat converter; And
The panel temperature sensor, it is located between the Department of Radiation and described valve system of described radiant panel,
Described abnormality detection unit detects described valve system and produces unusual situation according to by the detected temperature of described panel temperature sensor with by the detected temperature of described Indoor Thermal exchange temperature sensor.
5. air conditioner according to claim 4 is characterized in that,
Pressure when at cooling operation in the described indoor heat converter is that described abnormality detection unit inspection is that described valve system has produced unusually in the situation below the predetermined value.
6. according to claim 4 or 5 described air conditioners, it is characterized in that,
Described air conditioner also has the indoor temperature transmitter that detects indoor temperature,
In the situation that by the detected temperature of described indoor temperature transmitter be more than the predetermined value by the difference of the detected temperature of described Indoor Thermal exchange temperature sensor, described abnormality detection unit inspection is that described valve system has produced unusually.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011006806 | 2011-01-17 | ||
| JP2011-006806 | 2011-01-17 | ||
| PCT/JP2012/050871 WO2012099128A1 (en) | 2011-01-17 | 2012-01-17 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
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| CN103314261A true CN103314261A (en) | 2013-09-18 |
| CN103314261B CN103314261B (en) | 2015-12-09 |
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| CN201280005265.XA Active CN103314261B (en) | 2011-01-17 | 2012-01-17 | Air conditioner |
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| EP (1) | EP2667109B1 (en) |
| JP (1) | JP5115667B2 (en) |
| CN (1) | CN103314261B (en) |
| AU (1) | AU2012207956B2 (en) |
| ES (1) | ES2806647T3 (en) |
| WO (1) | WO2012099128A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894121A (en) * | 2017-10-27 | 2018-04-10 | 广东美的暖通设备有限公司 | Detection method, compressor and the electric equipment of compressor temperature sensor |
| CN110050159A (en) * | 2017-11-16 | 2019-07-23 | 日立江森自控空调有限公司 | Air conditioner |
| CN110226070A (en) * | 2017-04-26 | 2019-09-10 | 松下知识产权经营株式会社 | Air conditioner |
| CN111473487A (en) * | 2020-04-07 | 2020-07-31 | 广东美的制冷设备有限公司 | Air conditioner, air conditioner control method and device and readable storage medium |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5927500B2 (en) * | 2012-10-02 | 2016-06-01 | パナソニックＩｐマネジメント株式会社 | Refrigeration cycle apparatus and air conditioner equipped with the same |
| JP5927502B2 (en) * | 2012-10-10 | 2016-06-01 | パナソニックＩｐマネジメント株式会社 | Refrigeration cycle apparatus and air conditioner equipped with the same |
| JP6604051B2 (en) * | 2015-06-26 | 2019-11-13 | ダイキン工業株式会社 | Air conditioning system |
| FR3116594B1 (en) * | 2020-11-26 | 2022-12-30 | Muller Et Cie | One-piece climatic treatment unit with radiant panel |
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| JP2002071188A (en) * | 2000-08-30 | 2002-03-08 | Mitsubishi Electric Building Techno Service Co Ltd | Abnormal heating medium supply detection apparatus |
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- 2012-01-16 JP JP2012006500A patent/JP5115667B2/en not_active Expired - Fee Related
- 2012-01-17 EP EP12736171.5A patent/EP2667109B1/en active Active
- 2012-01-17 WO PCT/JP2012/050871 patent/WO2012099128A1/en active Application Filing
- 2012-01-17 CN CN201280005265.XA patent/CN103314261B/en active Active
- 2012-01-17 ES ES12736171T patent/ES2806647T3/en active Active
- 2012-01-17 AU AU2012207956A patent/AU2012207956B2/en active Active
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| CN87101888A (en) * | 1987-02-10 | 1988-08-24 | 密西西比电力公司 | The heat pump of three parts combination |
| JPH05280762A (en) * | 1992-03-30 | 1993-10-26 | Toshiba Corp | Indoor unit with radiation panel |
| JP2001090977A (en) * | 1999-09-24 | 2001-04-03 | Mitsubishi Electric Corp | Air-conditioner |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110226070A (en) * | 2017-04-26 | 2019-09-10 | 松下知识产权经营株式会社 | Air conditioner |
| CN110226070B (en) * | 2017-04-26 | 2020-12-04 | 松下知识产权经营株式会社 | Air conditioner |
| CN107894121A (en) * | 2017-10-27 | 2018-04-10 | 广东美的暖通设备有限公司 | Detection method, compressor and the electric equipment of compressor temperature sensor |
| CN110050159A (en) * | 2017-11-16 | 2019-07-23 | 日立江森自控空调有限公司 | Air conditioner |
| CN111473487A (en) * | 2020-04-07 | 2020-07-31 | 广东美的制冷设备有限公司 | Air conditioner, air conditioner control method and device and readable storage medium |
| CN111473487B (en) * | 2020-04-07 | 2021-07-23 | 广东美的制冷设备有限公司 | Air conditioner, air conditioner control method and device and readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2667109B1 (en) | 2020-05-06 |
| CN103314261B (en) | 2015-12-09 |
| EP2667109A1 (en) | 2013-11-27 |
| WO2012099128A1 (en) | 2012-07-26 |
| EP2667109A4 (en) | 2017-09-27 |
| AU2012207956A1 (en) | 2013-09-05 |
| JP2012163314A (en) | 2012-08-30 |
| AU2012207956B2 (en) | 2015-04-30 |
| JP5115667B2 (en) | 2013-01-09 |
| ES2806647T3 (en) | 2021-02-18 |
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