WO2013047453A1 - Pompe à chaleur pour le chauffage industriel - Google Patents

Pompe à chaleur pour le chauffage industriel Download PDF

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Publication number
WO2013047453A1
WO2013047453A1 PCT/JP2012/074431 JP2012074431W WO2013047453A1 WO 2013047453 A1 WO2013047453 A1 WO 2013047453A1 JP 2012074431 W JP2012074431 W JP 2012074431W WO 2013047453 A1 WO2013047453 A1 WO 2013047453A1
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WO
WIPO (PCT)
Prior art keywords
blower
thermo
heat pump
heat exchanger
mode
Prior art date
Application number
PCT/JP2012/074431
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English (en)
Japanese (ja)
Inventor
直孝 海野
Original Assignee
東芝キヤリア株式会社
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Publication date
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Priority to JP2013536271A priority Critical patent/JP5760091B2/ja
Publication of WO2013047453A1 publication Critical patent/WO2013047453A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/136—Defrosting or de-icing; Preventing freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/174—Supplying heated water with desired temperature or desired range of temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/208—Temperature of the air after heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/227—Temperature of the refrigerant in heat pump cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/375—Control of heat pumps
    • F24H15/38—Control of compressors of heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/395—Information to users, e.g. alarms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting
    • F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/02—Casings; Cover lids; Ornamental panels
    • 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
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/021—Inverters therefor
    • 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
    • F25B2600/11—Fan speed control
    • F25B2600/112—Fan speed control of evaporator fans
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the embodiment of the present invention relates to an industrial heating heat pump device for heating an object to be heated in an industrial facility.
  • the cleaning liquid is heated by energy obtained by burning fossil fuels such as city gas, LP, heavy oil, and kerosene.
  • fossil fuels such as city gas, LP, heavy oil, and kerosene.
  • CO2 carbon dioxide
  • a refrigeration cycle using outside air as a heat source which is used as a means to heat water in a heating system that heats by supplying warm water to a load (use side equipment) such as floor heating or a fan coil unit. It has been considered to use a heat pump type heat source device comprising: That is, an industrial warming heat pump device is employed.
  • Japanese Patent Laid-Open Publication No. 2010-266191 describes a heat pump type liquid temperature adjusting device used in factories and the like.
  • the industrial heating heat pump device is provided with a use side heat exchanger as a condenser on the discharge side of the compressor, and a heat source side heat exchanger as an evaporator via an expansion device, and each component device is a refrigerant pipe. Communicate. By driving the compressor and performing the refrigeration cycle operation, the heat of condensation of the refrigerant is directly or indirectly given to the cleaning liquid in the use side heat exchanger and heated.
  • Such an industrial heating heat pump device can be installed outdoors, but if it is placed near the washing tank, the piping length becomes shorter, the heat radiation of the washing tank can be absorbed, and the entire apparatus including the washing tank
  • the heat source side heat exchanger that exchanges heat with air is also arranged in the building in the same manner as the washing tank because of the many advantages of being compact.
  • the temperature in the vicinity of the washing tank rises and environmental conditions deteriorate. That is, while the compressor of the industrial warming heat pump device is in operation, the heat source side heat exchanger in the building becomes low temperature and the blower that passes through the heat source side heat exchanger is operated. The low-temperature air heat-exchanged with the heat exchanger flows through the building and the environment in the building is improved. However, as soon as the refrigeration cycle operation is stopped, the blower is stopped and the air is not blown.
  • the present embodiment includes a refrigeration cycle including a compressor, a use side heat exchanger, an expansion device, and a heat source side heat exchanger, and a blower that blows air to the heat source side heat exchanger, and heat obtained by the use heat exchanger.
  • An industrial heating heat pump device that uses an industrial heating heat pump device to heat an object to be heated in an industrial facility, and includes a control device that controls the operation of the refrigeration cycle equipment. This control device operates the blower when the thermo-off is performed during the heating operation. And a thermo-off air blowing mode in which the blower is operated when the thermo-off of the heating operation is performed.
  • FIG. 1 is a configuration diagram of a cleaning system for a component to be cleaned according to the present embodiment.
  • FIG. 2 is an external perspective view of the industrial heating heat pump device according to the embodiment.
  • FIG. 3 is an enlarged view showing a part of the industrial heating heat pump device according to the embodiment.
  • FIG. 4A is a diagram for explaining an operation setting example with the DIP switch according to the embodiment.
  • FIG. 4B is a diagram for explaining an operation setting example with the DIP switch according to the embodiment.
  • FIG. 4C is a diagram illustrating an operation setting example with the DIP switch according to the embodiment.
  • FIG. 5 is a refrigeration cycle configuration diagram and a control block diagram of the industrial heating heat pump device according to the embodiment.
  • FIG. 6 is an operation flowchart using the DIP switch according to the embodiment.
  • FIG. 7 is an external perspective view of an industrial warming heat pump device according to a modification of the embodiment.
  • FIG. 1 is a configuration diagram of a cleaning system that cleans parts to be cleaned with a heated cleaning liquid, which is an example of a heating system that heats a cleaning liquid that is an object to be heated in an industrial facility.
  • the cleaning tank B which is an open tank is installed inside the building of the part manufacturing factory A, and the cleaning liquid C made of liquid such as water is stored in the cleaning tank B.
  • the pump Pa provided in the middle of the cleaning pipe F sucks the cleaning liquid C in the cleaning tank B, and is placed on the conveyor D, for example, from the shower S provided at the other end of the cleaning pipe F.
  • the cleaning liquid C is sprayed on the parts to be cleaned E to clean the parts to be cleaned E.
  • the cleaning liquid C in the cleaning tank B is radiated from a heat medium supplied from an industrial heating heat pump device (hereinafter simply referred to as “heat pump device”) H and a heat exchanger K provided via a medium pipe J. Is heated by.
  • heat pump device industrial heating heat pump device
  • medium pipe J the medium pipe is referred to as a water pipe J.
  • a pump Pb is provided in the middle of the water pipe J, and forms a closed circuit together with the heat exchanger K and the heat pump device H.
  • the position of the pump Pb may be provided anywhere in the water pipe J, and may be built in the heat pump apparatus H.
  • the low-temperature water in the water pipe J is heated and warmed, and is radiated from the heat exchanger M to the cleaning liquid C.
  • the hot water in the water pipe J is deprived of heat by the cleaning liquid C and becomes low temperature.
  • the hot water is heated again by being guided to the heat pump device H, and is radiated again by the heat exchanger K, thereby heating the cleaning liquid C.
  • the cleaning liquid C finally reaches a predetermined set temperature, and this temperature is maintained. In this state, the pump Pa and the conveyor D are operated, and the parts to be cleaned E are cleaned.
  • the ambient temperature around the cleaning tank B is considerably high. Therefore, if cool air from the blower hits the worker M, a refreshing feeling can be obtained, and even if it does not hit, the ambient temperature in the vicinity of the cleaning tank B decreases.
  • the cleaning liquid C in the cleaning tank B may exceed a predetermined value set higher than the set temperature. Once this temperature is exceeded, the heat pump device H once stops the refrigeration cycle operation. As the control in a state where the refrigeration cycle operation is stopped, the user or the installer of the heat pump apparatus H can select a “normal mode” and a “thermo-off air blowing mode” to be described later.
  • the “normal mode” the operation of the compressor and the blower is stopped and the normal operation is performed. That is, it is selected when the heat pump apparatus H is installed outdoors or when the temperature in the factory A is relatively low even when the heat pump apparatus H is installed in the factory, and the worker M does not need to feel refreshed.
  • the “thermo-off air blowing mode” is effective when it is desired to obtain a refreshing feeling from the worker M or when the ambient temperature in the vicinity of the cleaning tank B is desired to be lowered.
  • the temperature of the cleaning liquid C in the cleaning tank B naturally decreases.
  • the operation of the compressor is automatically resumed and the blower is also driven, the heating operation of the cleaning liquid C is resumed, and the worker M gets a refreshing feeling.
  • the ambient temperature near the cleaning tank B is lowered.
  • the user or the installer of the heat pump apparatus H can also select a “fan independent operation mode” in which only the blower described later is operated.
  • the rotational speed of the air blower while only the air blower is operating can be freely set.
  • FIG. 2 is an external perspective view of the heat pump apparatus H.
  • FIG. A blowout port 2 is provided in the lower front portion of the cabinet 1 constituting the housing surface, and the blowout port 2 is covered with a fan guard 3.
  • An inspection code confirmation window 4 is provided above the fan guard 3.
  • An internal 7-segment, 2-digit display (not shown; the same applies hereinafter) can be seen through the inspection code confirmation window 4, and the status is notified with a 2-digit number when an abnormality or failure occurs, and the mode is switched. Depending on, normal (continuous) display, blinking display or extinguishing.
  • a side plate 7 is detachably provided on the right side surface. By removing the side plate 7, a dip switch that is an “operation mode changeover switch” described later and a rotary switch that is a “rotation speed setting switch” Appears.
  • a blower (17 in FIG. 5) is accommodated inside the cabinet 1, and this blow-out side faces the fan guard 3.
  • a suction port is provided in the cabinet 1 facing the back side and the left side of the blower.
  • An air heat exchanger which is a fin-tube type heat source side heat exchanger, is formed along the back surface and the left surface facing the suction port, that is, in a substantially L shape in plan view.
  • a compressor and valves and piping which connects these are accommodated in the side part via a partition plate with the air blower and the air heat exchanger.
  • a water-refrigerant heat exchanger consisting of a double pipe, which is a use side heat exchanger, is disposed above the partitioning plate between the blower and the air heat exchanger, and the compressor and the blower are connected to each other. Electrical components for drive control are accommodated.
  • the refrigerant in the refrigeration cycle and the water in the water pipe J for heating the cleaning liquid C flow.
  • FIG. 3 is an external perspective view of the dip switch 5 and the rotary switch 6 exposed by removing the side plate 7.
  • the dip switch 5 will be described. This consists of three dip switches 5a, 5b and 5c, and is set to on-off.
  • the left dip switch is referred to as a first dip switch 5a
  • the middle dip switch is referred to as a second dip switch 5b
  • the right dip switch is referred to as a third dip switch 5c.
  • FIG. 4A, FIG. 4B, and FIG. 4C show operation setting examples at the dip switches 5a, 5b, and 5c.
  • the switch-off setting state of each dip switch 5a, 5b, 5c is represented as “0”, and the switch-on setting state is represented as “1”.
  • the compressor is on-off controlled so that the cleaning liquid C in the cleaning tank B falls within the set temperature range in accordance with the heating operation of the heat pump apparatus H.
  • the compressor is controlled to be on during the heating operation, it is called “thermo on”, and when the compressor is controlled to be off, it is called “thermo off”.
  • thermo-off in the warming operation state (during the warming operation)
  • the operation of the blower is also stopped in conjunction with the compressor. This is called the “normal mode” described above.
  • the first dip switch 5a and the second dip switch 5b are off, but when the third dip switch 5c is set to “001”, the heating operation is performed.
  • the thermo-off compressor operation is temporarily stopped
  • the blower continues to operate independently. This is called the “thermo-off air blowing mode” described above.
  • the rotational speed of the blower at this time can be freely set by the rotary switch 6.
  • the rotary switch 6 is configured so that the setter can rotate the knob and set the rotational speed of the blower corresponding to the scale indicated by the direction of the arrow attached to the knob.
  • the rotary switch 6 is graduated from “1” to “16”. As shown in Table 1 below, the rotational speed of the blower corresponding to each scale is set between a minimum: 480 rpm and a maximum: 950 rpm.
  • FIG. 5 is a configuration diagram of a heat pump refrigeration cycle in the heat pump device H and a configuration diagram of a control device that controls the heat pump refrigeration cycle.
  • the heat pump refrigeration cycle includes a compressor 11 that is variable speed driven by an inverter device 10, a four-way valve 12 that changes the flow direction of refrigerant, a water-refrigerant heat exchanger 13 that is a use side heat exchanger, and an electronic that is an expansion device.
  • the control expansion valve 14, the air heat exchanger 15 that is a heat source side heat exchanger, and the refrigerant pipe 16 are sequentially connected so as to pass through the four-way valve 12 and return to the compressor 11.
  • the water-refrigerant heat exchanger 13 is composed of, for example, a double pipe, in which a refrigerant flows through the inner pipe and water (medium) flows between the inner pipe and the outer pipe. A space between the inner pipe and the outer pipe is connected to the water pipe J described above.
  • the air heat exchanger 15 is, for example, a finned tube type, and a propeller fan type blower 17 is provided to face the air heat exchanger 15.
  • the refrigerant When the refrigeration cycle is operated, the refrigerant is compressed by the compressor 11, and the discharged high-temperature and high-pressure refrigerant flows to the water-refrigerant heat exchanger 13 through the four-way valve 12, as indicated by solid arrows in the figure.
  • the water flowing through the water pipe J and the high-temperature high-pressure refrigerant in the refrigeration cycle exchange heat to heat the water.
  • Water in the water pipe J becomes warm water, and heat is radiated by the heat exchanger K described above (FIG. 1) to heat the cleaning liquid C in the cleaning tank B.
  • the pump Pa is driven, the cleaning liquid C is sprayed from the shower S through the cleaning pipe F, and the parts to be cleaned E on the conveyor D are cleaned.
  • the refrigerant In the water-refrigerant heat exchanger 13, the refrigerant is condensed and converted into a liquid refrigerant that is led to the expansion valve 14 and adiabatically expands. Furthermore, it evaporates in the air heat exchanger 15 and is again led from the four-way valve 12 to the compressor 11 and compressed.
  • R410A which is an HFC refrigerant
  • R410A is used as the refrigerant of the refrigeration cycle of the heat pump heat source apparatus H, but other appropriate refrigerants may be used.
  • other heat medium such as antifreeze may be used.
  • the four-way valve 12 is provided for a defrosting operation for melting frost formed by condensation of moisture in the air on the surface of the air heat exchanger 15, but under high-temperature atmospheric conditions in the factory indoor where frost is not formed. If the air heat exchanger 15 is used, the four-way valve 12 becomes unnecessary. During the defrosting operation, the four-way valve 12 is switched, the refrigerant flows as shown by the broken line arrows in the figure, and the high-temperature and high-pressure refrigerant discharged from the compressor 11 flows to the air heat exchanger 15 to melt frost. .
  • the controller 20 is composed of a microcomputer and its peripheral circuits.
  • the operation of the heat pump heat source device H is started by turning on the operation switch 21, and the operation of all the constituent devices is stopped by turning off (operation). Stop).
  • the operation switch 21 is an external switch operated by a worker on a daily basis.
  • the following four modes exist in the state of the heat pump type heat source device H when the operation switch 21 is turned on.
  • the first is a “normal mode” in which the heating operation is performed and the blower 17 is also stopped when the heating operation is turned off.
  • the second is a “thermo-off air blowing mode” in which a heating operation is performed and only the blower 17 is operated when the heating operation is thermo-off.
  • the third is a “fan independent operation mode” in which only the blower 17 is always operated without performing the heating operation.
  • the fourth is a “stop mode” in which neither the heating operation described later nor the operation of the blower 17 is executed.
  • the inverter device 10 that drives the compressor 11 is controlled by the controller 20, and the fan motor M that drives the propeller fan of the blower 17 is also controlled by the controller 20.
  • a heat exchange temperature sensor 22 is provided in the vicinity of the refrigerant outlet pipe of the air heat exchanger 15 to detect the refrigerant temperature (Te).
  • a temperature sensor 23 for detecting the air temperature (To) for heat exchange is provided on the air inflow side for heat exchange of the air heat exchanger 15.
  • the temperature sensors 22 and 23 are connected to the controller 20, and the controller 20 reads the detected temperatures Te and To.
  • the detected temperatures of these temperature sensors 22 and 23 are used for detecting the frosting state of the air heat exchanger 15.
  • the controller 20 detects the frosting state based on the difference between the detected temperatures Te and To (Te ⁇ To) and the time change of the difference during the thermo-on of the heating operation, and the frosting amount is defrosted. It is determined whether or not the necessary amount is reached.
  • the four-way valve 12 is switched and the refrigerant is guided in the direction of the broken arrow in the figure to perform the defrosting operation. If the defrosting operation is not necessary as described above, the four-way valve 12 and the temperature sensors 22 and 23 are unnecessary.
  • the controller 20 is connected to an outlet temperature sensor 26 for detecting the temperature of the water pipe J on the outlet side in the water-refrigerant heat exchanger 13 (hereinafter referred to as outlet water temperature). Furthermore, the controller 20 controls the output frequency of the inverter device 10 connected to the compressor 11 so that the outlet water temperature becomes a constant value with the set temperature.
  • the output of the inverter device 10 is stopped and the compressor 11 is stopped (thermo-off).
  • the compressor 11 is stopped (thermo-off).
  • a dip switch 5 and a rotary switch 6 are connected to the controller 20.
  • the controller 20 has a function of “normal mode” for stopping the operation of the blower 17 when the thermo-off of the heating operation is performed, a function of “thermo-off air-blowing mode” for operating the blower 17 when the thermo-off of the heating operation is performed, A “fan only operation mode” in which only the blower 17 is operated without performing a temperature operation, and a “stop mode” in which neither the heating operation nor the operation of the blower 17 is performed are provided.
  • the controller 20 selects and executes one mode from the above four modes based on the setting contents set by the DIP switch 5.
  • the “normal mode” is set by setting the dip switch 5 to “000”
  • the “thermo-off air blowing mode” is set by setting it to “001”.
  • the “fan independent operation mode” is set.
  • the rotary switch 6 is a rotation speed setting switch for setting the fan rotation speed of the blower 17 in the “thermo-off air blowing mode” or “fan independent operation mode”.
  • the rotation speed of the blower 17 that is actually set is As described in [Table 1].
  • the display unit 30 is further connected to the controller 20. As described above, the display unit 30 is viewed from the outside of the device by an operator or the like through the inspection code confirmation window 4 provided in the upper front portion of the cabinet 1.
  • thermo-ON For the safety of workers, during the operation of the blower, the danger is displayed by lighting or blinking all 8 characters in 7 segments of the display unit 30.
  • thermo-ON During the “normal mode” thermo-ON and the “thermo-off air blowing mode” thermo-ON, continuous lighting is performed. While the “thermo-off blow mode” is in the thermo-off state and during the operation of only the blower in the “fan-only operation mode”, the display blinks.
  • the blower 17 stops the operation, and all the segments are turned off.
  • the controller 20 can be connected to a louver motor 35, which will be described later with reference to FIG.
  • step S2 when the operation switch 21 is turned on and the operation state is entered, the step starts.
  • the setting of the dip switch 5 is read by the controller 20 and the setting of the dip switch 5 is “000” or “001” (Yes in step S1), the heating operation is in the thermo-on state. Is determined (step S2).
  • step S2 when the heating operation is in the thermo-on state (Yes in step S2), the heating operation is performed. That is, the compressor 11 is driven and the blower 17 is driven (step S3). At this time, the display unit 35 performs normal display (step S4), and all the two-digit elements are lit in 7 segments.
  • step S5 it is further determined whether or not the setting of the dip switch is “000” (step S5).
  • the heating operation is stopped (operation of the compressor 11 is stopped) and the operation of the blower 17 is stopped (fan off) (Ste S6). That is, in the “normal mode” described above, the display unit 35 is turned off at this time (step S7).
  • step S5 When it is confirmed in step S5 that the setting of the dip switch 5 is not “000” (No in step S5), that is, when the setting of the dip switch 5 is “001”, only the blower 17 is driven and the compressor 11 Other devices, such as, stop (step S8). That is, the “thermo-off air blowing mode” is set.
  • the setting content of the rotary switch 6 is read by the controller 20, and the blower 17 is operated at the rotation speed set in the rotary switch 6 (step S9).
  • the display unit 35 blinks to indicate that the blower 17 is rotating (step S10).
  • step S1 When the setting of the dip switch 5 is not “000” or “001” (No in step S1), it is confirmed whether or not the setting of the dip switch 5 is “010” (step S11). . When Yes, it is a “fan-only mode” in which only the blower 17 is operated without driving the compressor 11.
  • step S5 the blower 17 is driven, but other devices are stopped (step S8). At this time, the blower 17 is operated at the rotational speed set in the rotary switch 6 (step S9), and the display unit 35 blinks (step S10).
  • step S11 When the setting of the dip switch 5 is not “010” (No in step S11), the setting of the dip switch 5 is other than “000”, “001”, and “010”, and the compressor 11 and the blower 17 are set. All the devices are stopped (step S12), and since the blower 17 is not operating, the display unit 35 is turned off (step S15).
  • the heat pump device H is driven to heat the cleaning liquid C in the cleaning tank B through the heat exchanger K, and The pump Pa is driven and the cleaning liquid is sprayed from the shower S to the parts E to be cleaned.
  • the thermopump is turned off and the heat pump device H is stopped, and the heat exchanger K is heated by residual heat.
  • the “normal mode” in which the operation of the blower 17 is stopped may be selected. In this setting, since the operation of the blower 17 is stopped, there is no wasteful power consumption.
  • thermo-off air blowing mode in which the air blower 17 is operated may be selected.
  • the wind accompanying the rotation of the fan of the blower 17 is blown out from the blowout port 2 even during the thermo-off, and blown to the worker M nearby.
  • the air in the workplace is circulated as a circulator, and the atmosphere is improved.
  • the worker M can obtain a refreshing feeling.
  • thermo pump is turned on and the heating operation of the heat pump device H is resumed.
  • the compressor 11 is driven and heat is radiated by the heat exchanger K to heat the cleaning liquid C. In this way, the compressor 11 is repeatedly stopped and restarted automatically.
  • the cleaning operation may be stopped after the cleaning of the predetermined number of parts C to be cleaned, and the operation of the heat pump apparatus H is naturally stopped.
  • the cleaning tank B or the heat pump apparatus H in another work, or the atmosphere in the work place may be deteriorated due to a relatively high temperature.
  • the operation of the compressor 11 is not performed, and the “fan independent operation mode” for driving the blower 17 is selected.
  • the heating operation is not performed, but only the blower 17 is operated and the number of rotations of the fan can be freely selected, so that the worker M can continuously obtain a refreshing feeling.
  • the heat pump device H is not completely stopped as in the prior art, but the wind blows from the blower 17 as necessary, so that effective use is obtained.
  • FIG. 7 is an external perspective view of a heat pump device Ha as a modification.
  • the louver 40 divided into a plurality of parts is attached to the outlet 2.
  • the wind direction is automatically changed, but may be changed manually.
  • the louver motor 35 is connected to the controller 20 and controlled in conjunction with the operation of the blower 17.
  • the blowing direction can be selected in the direction in which the worker M is present. Or cold wind can be blown out over a wide angle.
  • the example has been described in which the heat of condensation of the refrigerant is indirectly heated through water in the use side heat exchanger, but the medium to be heated (for example, the washing liquid) itself is contained in the use side heat exchanger. It may be heated directly.
  • the medium to be heated for example, the washing liquid

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air Conditioning Control Device (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Central Air Conditioning (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

L'invention porte sur un dispositif de pompe à chaleur pour le chauffage industriel qui comprend un cycle de réfrigération comportant un compresseur, un échangeur de chaleur côté utilisation, un dispositif détendeur, et un échangeur de chaleur côté source de chaleur, et comportant un ventilateur qui souffle de l'air vers l'échangeur de chaleur côté source de chaleur, la chaleur obtenue par l'échangeur de chaleur côté utilisation étant utilisée pour chauffer un objet à chauffer dans une installation industrielle, le dispositif de pompe à chaleur précité étant équipé en outre d'un dispositif de commande qui commande le fonctionnement du dispositif de cycle de réfrigération. Ce dispositif de commande est équipé d'un mode normal, dans lequel le fonctionnement du ventilateur est arrêté pendant une période hors chauffage pendant l'opération de chauffage, et un mode de ventilateur hors chauffage dans lequel le ventilateur est mis en action pendant la période hors chauffage de l'opération de chauffage, en permettant ainsi une utilisation efficace des composants structuraux, même si le fonctionnement du cycle de réfrigération est arrêté.
PCT/JP2012/074431 2011-09-28 2012-09-24 Pompe à chaleur pour le chauffage industriel WO2013047453A1 (fr)

Priority Applications (1)

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JP2013536271A JP5760091B2 (ja) 2011-09-28 2012-09-24 産業用加温ヒートポンプ装置

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JP2011-213439 2011-09-28
JP2011213439 2011-09-28

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WO2013047453A1 true WO2013047453A1 (fr) 2013-04-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018189272A (ja) * 2017-04-28 2018-11-29 三菱電機株式会社 給湯システム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61246529A (ja) * 1985-04-23 1986-11-01 Matsushita Electric Ind Co Ltd ヒ−トポンプ給湯装置
JPS61250444A (ja) * 1985-04-26 1986-11-07 Matsushita Electric Ind Co Ltd ヒ−トポンプ給湯装置
JP2010266191A (ja) * 2009-04-16 2010-11-25 Chubu Electric Power Co Inc 媒体温度調整システム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001020234A1 (fr) * 1999-09-15 2001-03-22 Ut-Battelle, Llc. Ensemble combine refrigerateur, pompe a chaleur et dispositif de chauffage d'eau

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61246529A (ja) * 1985-04-23 1986-11-01 Matsushita Electric Ind Co Ltd ヒ−トポンプ給湯装置
JPS61250444A (ja) * 1985-04-26 1986-11-07 Matsushita Electric Ind Co Ltd ヒ−トポンプ給湯装置
JP2010266191A (ja) * 2009-04-16 2010-11-25 Chubu Electric Power Co Inc 媒体温度調整システム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018189272A (ja) * 2017-04-28 2018-11-29 三菱電機株式会社 給湯システム

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JPWO2013047453A1 (ja) 2015-03-26

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