WO2016167106A1 - 制御装置、制御方法及びプログラム - Google Patents

制御装置、制御方法及びプログラム Download PDF

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Publication number
WO2016167106A1
WO2016167106A1 PCT/JP2016/059821 JP2016059821W WO2016167106A1 WO 2016167106 A1 WO2016167106 A1 WO 2016167106A1 JP 2016059821 W JP2016059821 W JP 2016059821W WO 2016167106 A1 WO2016167106 A1 WO 2016167106A1
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WIPO (PCT)
Prior art keywords
heat pump
temperature
fluctuation amount
water
fluctuation
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.)
Ceased
Application number
PCT/JP2016/059821
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English (en)
French (fr)
Japanese (ja)
Inventor
正広 寺岡
岡田　拓也
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to CN201680017459.XA priority Critical patent/CN107429951A/zh
Priority to EP16779897.4A priority patent/EP3264009B1/en
Priority to KR1020177027691A priority patent/KR101987571B1/ko
Publication of WO2016167106A1 publication Critical patent/WO2016167106A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • F24D19/1054—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses a heat pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/02—Domestic hot-water supply systems using heat pumps
    • 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
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/12—Heat pump
    • F24D2200/123—Compression type heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors
    • 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
    • F25B2313/003—Indoor unit with water as a heat sink or heat source
    • 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
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/06—Several compression cycles arranged in parallel
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2116—Temperatures of a condenser
    • F25B2700/21161—Temperatures of a condenser of the fluid heated by the condenser

Definitions

  • the present invention relates to a control device, a control method, and a program.
  • Priority is claimed on Japanese Patent Application No. 2015-082357, filed April 14, 2015, the content of which is incorporated herein by reference.
  • Patent Document 1 discloses a related technology. The device disclosed in Patent Document 1 improves efficiency of operation and reliability in a heat pump system in which each of a plurality of heat pump devices heats water circulating in a water pipe.
  • the pressure of the refrigerant in the heat exchanger becomes higher as the position of the heat pump device becomes more downstream of the water circulation path and as the heat pump device becomes smaller.
  • expensive components that endure the high pressure of the refrigerant are used, making it difficult to reduce the manufacturing cost of the heat pump system .
  • An object of the present invention is to provide a control device, a control method, and a program that can solve the above-mentioned problems.
  • the control device varies the temperature of the water disposed in order and circulated in the circulation path, and includes a plurality of heat pumps including the most downstream heat pump device disposed most downstream in the circulation path. It is a control device which controls an apparatus, and it measures the fluctuation amount of the water temperature in equipment, the equipment capability which each of the heat pump device has, the target outlet water temperature in each of the heat pump device, and the inlet water temperature of each heat pump device To determine the fluctuation amount allocated to the heat pump devices other than the most downstream heat pump device so that the fluctuation amount allocated to the most downstream heat pump device becomes smaller than the fluctuation amount allocated to the most downstream heat pump device And a unit.
  • the control device in the first aspect includes a fluctuation amount reading unit that reads from the storage unit a fluctuation amount that causes the temperature of the water to fluctuate across the plurality of heat pump devices.
  • the fluctuation amount allocation determination unit equally divides the fluctuation amount read from the storage unit by the fluctuation amount reading unit according to the number of the plurality of heat pump devices, and the most downstream heat pump device at a predetermined timing.
  • the amount of fluctuation allocated to the plurality of heat pump units other than the most downstream heat pump unit may be determined so that the allocated amount of fluctuation is smaller than the normal amount of fluctuation.
  • the fluctuation amount allocation determination unit determines that the target temperature of the water at the output of the most downstream heat pump device exceeds a first set temperature In this case, the fluctuation amounts allocated to the plurality of heat pump devices other than the most downstream heat pump device are set such that the fluctuation amount allocated to the most downstream heat pump device at the predetermined timing is smaller than the fluctuation amount at the normal time. You may decide.
  • the fluctuation amount allocation determination unit determines that the target temperature of the water at the output of the most downstream heat pump device exceeds a first set temperature.
  • the amount of fluctuation allocated to the most downstream heat pump device is smaller than the amount of fluctuation during the normal time.
  • the fluctuation amounts allocated to the plurality of heat pump devices other than the most downstream heat pump device may be determined.
  • control device in any one of the second to fourth aspects further comprises the most downstream heat pump device and the most downstream heat pump device based on the allocated fluctuation amount determined by the fluctuation amount allocation determination unit.
  • the variable amount allocation setting unit may set the allocated fluctuation amount to be allocated to the plurality of heat pump apparatuses other than the most downstream heat pump apparatus.
  • the control method varies the temperature of the water sequentially arranged and circulated in the circulation path, and includes a plurality of heat pumps including the most downstream heat pump devices arranged most downstream in the circulation path
  • a control method of a control device for controlling a device comprising: fluctuation amount of water temperature in equipment, equipment capacity of each of the heat pump devices, target outlet water temperature in each of the heat pump devices, and each inlet of the heat pump device Performing control to change the temperature of the water based on an actual measurement value of the water temperature and an actual measurement value of the outlet water temperature of each of the heat pump apparatus; and a fluctuation amount allocated to the most downstream heat pump apparatus is a normal fluctuation
  • the plurality of heat pump units other than the most downstream heat pump unit to be less than the amount It includes determining the amount of variation assigned, the.
  • the program varies the temperature of the water sequentially arranged and circulated in the circulation path, and includes a plurality of heat pump devices including the most downstream heat pump device arranged most downstream in the circulation path
  • the computer of the control device that controls the variation of water temperature in equipment, the equipment capacity of each of the heat pump devices, the target outlet water temperature in each of the heat pump devices, and the measured values of the inlet water temperature of each of the heat pump devices Performing control to change the temperature of the water based on the measured values of the outlet water temperature of the heat pump device, and the amount of fluctuation allocated to the most downstream heat pump device is smaller than the amount of fluctuation at normal times
  • the plurality of heat pump units other than the most downstream heat pump unit Determining a variation amount allocated, to the execution.
  • control device control method and program, it is possible to use inexpensive parts in the heat exchanger of the heat pump apparatus located most downstream of the plurality of heat pump apparatuses connected in series in the heat pump system And the manufacturing cost of the heat pump system can be reduced.
  • the structure of a heat pump system provided with the control apparatus by 1st embodiment of this invention is demonstrated.
  • the heat pump system 1 according to the first embodiment of the present invention is, as shown in FIG. 1, an equipment 10, a first heat pump apparatus 20a1, a second heat pump apparatus 20a2, ..., an (n-1) th heat pump apparatus 20a ( and n-1), an nth heat pump apparatus 20an, a control apparatus 30, and a water pipe 40.
  • the facility 10 changes the temperature of water by ⁇ T.
  • the equipment 10 is an office, a factory, etc.
  • the temperature of water is changed by ⁇ T by using an air conditioner, a boiler apparatus, a freezer or the like.
  • the temperature of water is reduced by ⁇ T, it means that the water is cooled.
  • the temperature of water is increased by ⁇ T, it means heating of water.
  • the facility 10 outputs, for example, water in which the temperature of water is decreased by ⁇ T to the first heat pump device 20a1 through the water pipe 40.
  • water is input to the equipment 10 from the nth heat pump apparatus 20 an via the water pipe 40.
  • the water heated to the water temperature required by the facility 10 is supplied to the facility 10 from the nth heat pump apparatus 20 an via the water pipe 40.
  • the first heat pump device 20a1 heats the water input from the facility 10 by heat exchange.
  • the first heat pump device 20a1 outputs the heated water to the second heat pump device 20a2 via the water pipe 40.
  • the second heat pump apparatus 20a2 heats the water input from the first heat pump apparatus 20a1 by heat exchange.
  • the second heat pump device 20a2 outputs the heated water to the third heat pump device 20a3 via the water pipe 40.
  • the third heat pump unit 20a3 heats the water input from the second heat pump unit 20a2 by heat exchange.
  • the third heat pump unit 20a3 outputs the heated water to the fourth heat pump unit 20a4 via the water pipe 40.
  • the (n-1) th heat pump apparatus 20a (n-1) heats the water input from the (n-2) th heat pump apparatus 20a (n-2) by heat exchange.
  • the (n ⁇ 1) th heat pump device 20a (n ⁇ 1) outputs the heated water to the nth heat pump device 20an via the water pipe 40.
  • the n-th heat pump apparatus 20 an is a most downstream heat pump apparatus disposed most downstream in the water circulation path.
  • the n-th heat pump apparatus 20an heats the water input from the (n-1) th heat pump apparatus 20a (n-1) by heat exchange.
  • the n-th heat pump apparatus 20 an outputs the heated water to the facility 10 via the water pipe 40.
  • the first heat pump apparatus 20a1, the second heat pump apparatus 20a2, ..., the (n-1) th heat pump apparatus 20a (n-1), and the n-th heat pump apparatus 20an are collectively referred to as the heat pump apparatus 20.
  • arrows in the water piping 40 indicate the flow direction of water in the water circulation path.
  • the control device 30 controls each of the first heat pump device 20a1, the second heat pump device 20a2, ..., and the n-th heat pump device 20an. Specifically, the control device 30 is capable of changing the water temperature of each of the temperature decrease ⁇ T of the water in the facility 10, the first heat pump device 20a1, the second heat pump device 20a2, ..., and the n-th heat pump device 20an.
  • the first heat pump apparatus 20a1, the second heat pump apparatus 20a2, ... based on the indicated equipment capacity, the input water temperature of the most upstream first heat pump apparatus 20a1, and the target outlet water temperature of the most downstream nth heat pump apparatus 20an.
  • the target outlet water temperature in each of the (n-1) heat pump apparatuses 20a (n-1), that is, the allocation of the fluctuation amount in each is determined.
  • the allocation of the fluctuation amount is performed by changing the fluctuation amount ⁇ T of the temperature of water in the facility 10 (in this case, the temperature decrease ⁇ T of water in the facility 10) to the first heat pump device 20a1, the second heat pump device 20a2,. 1)
  • This is an amount indicating the fluctuation amount of the water temperature allocated to each of the heat pump devices 20a (n-1), and is the fluctuation amount indicated by the difference between the target outlet water temperature and the inlet water temperature in each.
  • the control device 30 measures the target outlet water temperature and the inlet water temperature in each of the first heat pump device 20a1, the second heat pump device 20a2, ..., and the (n-1) heat pump device 20a (n-1), and Control for allocation of fluctuation amounts in each of the first heat pump apparatus 20a1, the second heat pump apparatus 20a2, ..., the (n-1) th heat pump apparatus 20a (n-1) based on each of the measured values of the outlet water temperature Generate a command.
  • Control device 30 transmits the generated control command to heat pump device 20 corresponding to each.
  • broken lines indicate communication paths between each of the heat pump devices 20 and the control device 30.
  • the control device 30 transmits and receives information to and from the facility 10 via this communication path.
  • Control device 30 transmits a control signal such as a target outlet water temperature to heat pump device 20 via this communication path.
  • the communication path may be wired or wireless.
  • each of the heat pump devices 20 includes a compressor 201, a four-way valve 202, a water heat exchanger 203, an expansion valve 204, an air heat exchanger 205, an accumulator 206, and a refrigerant pipe 207.
  • the compressor 201, the four-way valve 202, the water heat exchanger 203, the expansion valve 204, the air heat exchanger 205, and the accumulator 206 are connected by a refrigerant pipe 207 to form a refrigerant circuit.
  • the compressor 201 is provided between the four-way valve 202 and the accumulator 206.
  • a motor is driven by an inverter.
  • the number of rotations of the motor that is, the discharge amount of the refrigerant is adjusted by the output frequency of the inverter.
  • the water heat exchanger 203 includes water in the water pipe 40 through which water flows from the heat pump device 20 on the upstream side to the heat pump device 20 on the downstream side, and refrigerant in the refrigerant pipe 207 between the four-way valve 202 and the expansion valve 204 Exchange heat.
  • Expansion valve 204 is provided between water heat exchanger 203 and air heat exchanger 205.
  • the expansion valve 204 makes the liquid refrigerant of the pressure P, which is the input temperature T, a refrigerant that is lower than the temperature T and lower than the pressure P.
  • the air heat exchanger 205 is provided between the four-way valve 202 and the expansion valve 204. The air heat exchanger 205 exchanges heat between the outside air and the refrigerant.
  • An accumulator 206 is provided between the compressor 201 and the four-way valve 202.
  • the accumulator 206 prevents the refrigerant which has not been gasified by the evaporator (the water heat exchanger 203 or the air heat exchanger 205) from being sucked into the compressor 201 as it is in liquid form.
  • a first temperature sensor 208 is provided at the inlet of the water pipe 40 in the water heat exchanger 203 through which water flows from the heat pump apparatus 20 on the upstream side (in the case of the first heat pump apparatus 20a1 from the facility 10). The water temperature detected by the first temperature sensor 208 is transmitted to the control device 30 as an actual measurement value of the inlet water temperature in the water pipe 40.
  • a second temperature sensor 209 is provided at the outlet of the water pipe 40 in the water heat exchanger 203 in which water flows to the heat pump apparatus 20 on the downstream side (in the case of the nth heat pump apparatus 20an, to the facility 10).
  • the water temperature detected by the second temperature sensor 209 is transmitted to the control device 30 as an actual measurement value of the output water temperature in the water pipe 40.
  • the heating operation and the cooling (or defrosting) operation are switched as the four-way valve 202 is switched and the flow direction of the refrigerant changes.
  • the refrigerant discharged from the compressor 201 flows in the order of the water heat exchanger 203, the expansion valve 204, the air heat exchanger 205, and the accumulator 206.
  • the water heat exchanger 203 acts as a condenser
  • the air heat exchanger 205 acts as an evaporator.
  • the water heated by the water heat exchanger 203 is output to the next heat pump device 20 or facility 10 on the downstream side of the water circulation path via the water pipe 40.
  • the control device 30 includes a communication unit 301, a storage unit 302, a communication control unit 303, a temperature fluctuation control unit 304, a fluctuation amount assignment determination unit 305, and a fluctuation amount reading unit 306. And a fluctuation amount allocation setting unit 307.
  • the communication unit 301 transmits and receives information necessary for the control device 30 to control each of the heat pump devices 20 with each of the heat pump devices 20.
  • the communication unit 301 includes the inlet water temperature detected by the first temperature sensor 208 in each of the first heat pump apparatus 20a1, the second heat pump apparatus 20a2, ..., and the (n-1) heat pump apparatus 20a (n-1). And the measured value of the outlet water temperature detected by the second temperature sensor 209 in each. Further, the communication unit 301 transmits a control command to each of the first heat pump apparatus 20a1, the second heat pump apparatus 20a2, ..., and the (n-1) th heat pump apparatus 20a (n-1).
  • the storage unit 302 stores various information necessary for the process performed by the control device 30.
  • the storage unit 302 stores in advance a data table TBL1 indicating the fluctuation amount of the water temperature which is fluctuated by the first heat pump apparatus 20a1, the second heat pump apparatus 20a2, ..., and the n-th heat pump apparatus 20an.
  • the fluctuation amount of the water temperature fluctuated by the first heat pump device 20a1, the second heat pump device 20a2, ..., the n-th heat pump device 20an is, for example, a fluctuation amount ⁇ T of the water temperature cooled in the facility 10.
  • the communication control unit 303 controls communication performed by the control device 30 via the communication unit 301.
  • communication control unit 303 causes communication device 301 to be performed by control device 30. It controls the communication performed via it.
  • the temperature variation control unit 304 determines the variation amount ⁇ T of the water temperature in the facility 10, the device capability of each of the heat pump devices 20, the input water temperature of the uppermost heat pump device 20a1, and the target of the nth heat pump device 20an most downstream. Based on the outlet water temperature, the target outlet water temperature in each of the first heat pump apparatus 20a1, the second heat pump apparatus 20a2, ..., and the (n-1) th heat pump apparatus 20a (n-1) is determined.
  • the temperature variation control unit 304 includes the variation amount ⁇ T of the water temperature in the equipment 10, the device capability of each of the heat pump devices 20, the variation amount ⁇ T of the water temperature in the equipment 10, the first heat pump device 20a1, the second heat pump device 20a2, ...
  • the first heat pump apparatus 20a1 and the second heat pump based on the actual values of the target outlet water temperature and the inlet water temperature in each of the (n-1) th heat pump apparatus 20a (n-1) and the actual values of the outlet water temperature
  • a control command is generated for each of the devices 20 a 2,..., (N ⁇ 1) heat pump devices 20 a (n ⁇ 1).
  • Control device 30 transmits the generated control command to heat pump device 20 corresponding to each, and controls heat pump device 20.
  • Control commands to vary the temperature of the water based on Specifically, the temperature fluctuation control unit 304 generates a control command to change the temperature of water by the allocation of the fluctuation amount set for each of the heat pump devices 20 by the fluctuation amount allocation setting unit 307. Control each one.
  • the fluctuation amount allocation determination unit 305 allocates the fluctuation amounts of each of the n-th heat pump device 20 an and the other heat pump devices 20 other than the n-th heat pump device 20 an disposed most downstream in the water circulation path of the heat pump device 20.
  • the allocation of the amount of fluctuation of the other heat pump devices 20 other than the n-th heat pump device 20an is determined so that the amount of fluctuation allocated to the n-th heat pump device 20an is smaller than the amount of fluctuation normally allocated.
  • the fluctuation amount allocation determination unit 305 equally divides the fluctuation amount read from the storage unit 302 by the fluctuation amount reading unit 306 by the number n of the heat pump devices 20, and sends the nth heat pump device 20an to the predetermined timing.
  • Allocation of fluctuation amounts of the other heat pump devices 20 other than the n-th heat pump device 20an is determined so that the allocated fluctuation amount is smaller than the fluctuation amount allocated at the normal time. Specifically, for example, the target temperature of water in the output of the n-th heat pump apparatus 20an exceeds the first set temperature, and the fluctuation amount allocation determination unit 305 heats the water in each of the heat pump apparatuses 20 and the pressure increases. Allocation of fluctuation amounts of the other heat pump devices 20 other than the n-th heat pump device 20an such that the fluctuation amount allocated to the n-th heat pump device 20an becomes smaller than the fluctuation amount allocated at normal times at a predetermined timing Decide.
  • the target temperature of water at the output of the n-th heat pump apparatus 20an exceeds the first set temperature
  • the fluctuation amount allocation determination unit 305 heats the water of the heat pump apparatus 20 and increases the pressure and outputs it.
  • the fluctuation amount allocated to the nth heat pump device 20an is smaller than the fluctuation amount allocated at normal time
  • the allocation of the fluctuation amount of the other heat pump devices 20 other than the n-th heat pump device 20an may be determined.
  • the fluctuation amount reading unit 306 reads from the storage unit 302 a fluctuation amount that causes the temperature of water to fluctuate in the entire first heat pump apparatus 20a1, the second heat pump apparatus 20a2, ..., and the n-th heat pump apparatus 20an.
  • the variation amount reading unit 306 reads the data table TBL1 from the storage unit 302.
  • the fluctuation amount allocation setting unit 307 allocates the fluctuation amount to be allocated to the nth heat pump device 20an and the other heat pump devices 20 other than the nth heat pump device 20an based on the fluctuation amount allocation determined by the fluctuation amount allocation determination unit 305.
  • the data table TBL1 stored in the storage unit 302 indicates a fluctuation amount ⁇ T that causes the temperature of water to fluctuate in the entire first heat pump apparatus 20a1, the second heat pump apparatus 20a2,.
  • the data table TBL1 indicates the correspondence between the respective facilities (facility 10, facility 300,...) And the fluctuation amount ⁇ T of the temperature of water in each facility.
  • processing of the heat pump system 1 according to the present embodiment will be described.
  • the facility 10 cools the water and the temperature of the water decreases by ⁇ T
  • processing of the control device 30 that controls each of the heat pump devices 20 to heat the water is shown.
  • the process flow of FIG. 5 will be described. It is known in advance that the facility 10 cools the water input from the nth heat pump apparatus 20an via the water pipe 40 and reduces the temperature of the water by ⁇ T, and the storage unit 302 sets the fluctuation amount ⁇ T to the data table TBL1. I remember.
  • the fluctuation amount ⁇ T recorded by the equipment 10 in the data table TBL1 of the storage unit 302 fluctuates the temperature of water in the first heat pump device 20a1, the second heat pump device 20a2, ..., and the n-th heat pump device 20an. Is the amount of fluctuation.
  • the fluctuation amount reading unit 306 reads the fluctuation amount ⁇ T corresponding to the facility 10 from the data table TBL1 of the storage unit 302 (step S1). For example, in the case of the data table TBL1 shown in FIG. 4, the fluctuation amount reading unit 306 searches and identifies the facility 10 sequentially from the top of the facility in the data table TBL1 and identifies the fluctuation amount ⁇ T1 corresponding to the identified facility 10 The variation amount ⁇ T of 10 is specified and read out. The fluctuation amount reading unit 306 outputs the read fluctuation amount ⁇ T to the fluctuation amount assignment determination unit 305.
  • the fluctuation amount allocation determination unit 305 receives the fluctuation amount ⁇ T from the fluctuation amount reading unit 306, each of the inputted fluctuation amount ⁇ T, the first heat pump device 20a1, the second heat pump device 20a2, ..., and the n-th heat pump device 20an Allocation and determination of respective fluctuation amounts of the heat pump apparatus 20 in a normal state based on the equipment capacity of the first stream, the input water temperature of the most upstream first heat pump apparatus 20a1, and the target outlet water temperature of the most downstream nth heat pump apparatus 20an (Step S2).
  • the fluctuation amount allocation determination unit 305 normally determines the fluctuation amount allocation ⁇ T ⁇ n obtained by equally dividing the fluctuation amount ⁇ T by the number n of the heat pump devices 20 as the allocation of each fluctuation amount of the heat pump device 20.
  • the fluctuation amount allocation determination unit 305 outputs, to the fluctuation amount allocation setting unit 307, the allocation of each fluctuation amount of the heat pump device 20 determined at the normal time.
  • Step S3 When the fluctuation amount allocation setting unit 307 inputs allocation of each fluctuation amount of the heat pump device 20 at normal time from the fluctuation amount allocation determination unit 305, allocation of each fluctuation amount of the input heat pump device 20 is performed for each of the heat pump devices 20.
  • Step S3 For example, when the fluctuation amount allocation determination unit 305 determines the allocation of each fluctuation amount of the heat pump device 20 as ⁇ T ⁇ n, the fluctuation amount allocation setting unit 307 allocates the fluctuation amount of each of the heat pump device 20 at the normal time Set to ⁇ T ⁇ n.
  • the temperature fluctuation control unit 304 sets the fluctuation amount ⁇ T of the water temperature in the facility 10 and the device capacity of each of the heat pump devices 20, Measurement of target outlet water temperature and inlet water temperature in each of the fluctuation amount ⁇ T of the water temperature in the equipment 10, the first heat pump device 20a1, the second heat pump device 20a2, ..., the (n-1) heat pump device 20a (n-1) Based on each of the value and the actual measurement value of the outlet water temperature, a control command for changing the temperature of the water is generated, and each of the heat pump devices 20 is controlled (step S4).
  • each of the heat pump devices 20 heats the water whose pressure is increased, It outputs to the heat pump apparatus 20 or installation 10 of the downstream side.
  • the fluctuation amount allocation determination unit 305 determines whether or not a predetermined timing has been reached when each of the heat pump devices 20 heats water and the pressure is increasing and outputting at normal times (step S5). Specifically, for example, in the fluctuation amount allocation determination unit 305, the target temperature of water at the output of the nth heat pump device 20an exceeds the first set temperature, and the temperature of water at the output of the nth heat pump device 20an It is determined whether or not the actual measurement value of has reached the timing at which the second set temperature has been exceeded.
  • the target temperature of water at the output of the n-th heat pump apparatus 20an exceeds the first set temperature 55 degrees (for example, the target temperature of water is 60 degrees) And, it is determined whether or not the measured value of the temperature of the water at the output of the n-th heat pump apparatus 20an has reached a timing at which the second set temperature exceeds 50 degrees.
  • step S5 the process returns to step S5.
  • step S6 when the fluctuation amount allocation determination unit 305 determines that the predetermined timing has come when each of the heat pump devices 20 heats the water and the pressure increases and outputs it during normal times (step S5, YES), this determination Allocation of fluctuation amounts of other heat pump devices 20 other than the n-th heat pump device 20an is determined such that the fluctuation amount allocated to the n-th heat pump device 20an becomes smaller than the fluctuation amount allocated at normal times at a timing (predetermined timing) (Step S6).
  • the fluctuation amount allocation determination unit 305 determines that the allocation of each fluctuation amount of the heat pump device 20 at the normal time is ⁇ T ⁇ n
  • the allocation of the fluctuation amount of the nth heat pump device 20an is performed at a predetermined timing. It is determined to be lower than ⁇ T ⁇ n, and the allocation of the fluctuation amount of the nth heat pump device 20an is lowered, and the allocation of the fluctuation amount of one or more heat pump devices 20 other than the nth heat pump device 20an is increased Decide so.
  • the fluctuation amount allocation determination unit 305 is lower than the allocation of the fluctuation amount of the nth heat pump device 20an in normal times, and easily realized per unit time even in a high temperature and high pressure state in the nth heat pump device 20an. Set to the allocation of possible fluctuation amount.
  • the fluctuation amount allocation determination unit 305 outputs the determined fluctuation amount allocation of the heat pump device 20 to the fluctuation amount allocation setting unit 307.
  • the temperature fluctuation control unit 304 sets the allocation of each fluctuation amount of the heat pump device 20 determined by the fluctuation amount allocation setting unit 307 at a predetermined timing
  • the fluctuation amount ⁇ T of the water temperature in the facility 10 and the heat pump device 20 each have Equipment capacity, fluctuation amount ⁇ T of water temperature in equipment 10, target outlet water temperature in each of first heat pump device 20a1, second heat pump device 20a2, ..., (n-1) heat pump device 20a (n-1), inlet
  • a control command for changing the temperature of the water is generated, and each of the heat pump devices 20 is controlled (step S8).
  • the number n of heat pump devices 20 may be any number as long as it is two or more.
  • the temperature fluctuation control unit 304 controls the fluctuation amount ⁇ T of the water temperature in the facility 10, the device capacity of each of the heat pump devices 20, the fluctuation amount ⁇ T of the water temperature in the facility Each of the target outlet water temperature, the measured inlet water temperature, and the measured outlet water temperature in each of the heat pump device 20a1, the second heat pump device 20a2, ..., and the (n-1) th heat pump device 20a (n-1)
  • the control command which fluctuates the temperature of water is generated based on the above, and each of the heat pump apparatus 20 is controlled.
  • the fluctuation amount allocation determination unit 305 allocates the fluctuation amounts of each of the n-th heat pump device 20 an and the other heat pump devices 20 other than the n-th heat pump device 20 an disposed most downstream in the water circulation path of the heat pump device 20.
  • the allocation of the amount of fluctuation of the other heat pump devices 20 other than the n-th heat pump device 20an is determined so that the amount of fluctuation allocated to the n-th heat pump device 20an is smaller than the amount of fluctuation normally allocated. In this way, it is possible to use inexpensive parts in the heat exchangers of the heat pump apparatus located at the most downstream position of the plurality of heat pump apparatuses connected in series in the heat pump system, thereby miniaturizing the heat pump system and the heat pump system. The manufacturing cost can be reduced.
  • the heat pump system 1 according to the present embodiment is the same as the heat pump system 1 according to the first embodiment, as shown in FIG. 6, the equipment 10, the first heat pump device 20a1, the second heat pump device 20a2,. -1) A heat pump device 20a (n-1), an n-th heat pump device 20an, a control device 30, and a water pipe 40 are provided.
  • the installation 10 according to the present embodiment includes a temperature sensor 101, a temperature sensor 102, a temperature difference calculation unit 103, and a temperature difference transmission unit 104.
  • the temperature sensor 101 is installed at the input of the water pipe 40 from the nth heat pump apparatus 20 an and detects the temperature of the water in the water pipe 40.
  • the temperature sensor 102 is installed at an output portion of the water pipe 40 to the first heat pump device 20a1, and detects the temperature of water in the water pipe 40.
  • the temperature difference calculation unit 103 subtracts the temperature of water detected by the temperature sensor 102 from the temperature detected by the temperature sensor 101 to calculate a temperature decrease ⁇ T of water in the facility 10.
  • the temperature difference transmission unit 104 transmits, to the control device 30, the decrease temperature ⁇ T of water in the facility 10 calculated by the temperature difference calculation unit 103.
  • the communication unit 301, the communication control unit 303, the temperature change control unit 304, the fluctuation amount allocation determination unit 305, the fluctuation amount reading unit 306, and the fluctuation amount allocation setting unit 307 included in the control device 30 are storage units.
  • the decrease temperature ⁇ T of water in the facility 10 transmitted in real time by the temperature difference transmission unit 104 via the communication unit 301 is used Process in real time.
  • the temperature fluctuation control unit 304 controls the fluctuation amount ⁇ T of the water temperature in the facility 10, the device capacity of each of the heat pump devices 20, the fluctuation amount ⁇ T of the water temperature in the facility Each of the target outlet water temperature, the measured inlet water temperature, and the measured outlet water temperature in each of the heat pump device 20a1, the second heat pump device 20a2, ..., and the (n-1) th heat pump device 20a (n-1)
  • the control command which fluctuates the temperature of water is generated based on the above, and each of the heat pump apparatus 20 is controlled.
  • the fluctuation amount allocation determination unit 305 allocates the fluctuation amounts of each of the n-th heat pump device 20 an and the other heat pump devices 20 other than the n-th heat pump device 20 an disposed most downstream in the water circulation path of the heat pump device 20.
  • the allocation of the amount of fluctuation of the other heat pump devices 20 other than the n-th heat pump device 20an is determined so that the amount of fluctuation allocated to the n-th heat pump device 20an is smaller than the amount of fluctuation normally allocated. In this way, it is possible to use inexpensive parts in the heat exchangers of the heat pump apparatus located at the most downstream position of the plurality of heat pump apparatuses connected in series in the heat pump system, thereby miniaturizing the heat pump system and the heat pump system. The manufacturing cost can be reduced.
  • the temperature sensor 101 is installed at an input portion of the water pipe 40 from the nth heat pump apparatus 20 an, and detects the temperature of water in the water pipe 40.
  • the temperature sensor 102 is installed at an output portion of the water pipe 40 to the first heat pump device 20a1, and detects the temperature of water in the water pipe 40.
  • the temperature difference calculation unit 103 subtracts the temperature of water detected by the temperature sensor 102 from the temperature detected by the temperature sensor 101 to calculate the amount of fluctuation ⁇ T (the temperature decrease ⁇ T of water) in the facility 10.
  • the temperature difference transmission unit 104 transmits, to the control device 30, the fluctuation amount ⁇ T in the equipment 10 calculated by the temperature difference calculation unit 103.
  • the communication unit 301, the communication control unit 303, the temperature change control unit 304, the fluctuation amount allocation determination unit 305, the fluctuation amount reading unit 306, and the fluctuation amount allocation setting unit 307 included in the control device 30 are storage units.
  • the facility 10 indicated by the data table TBL1 stored in 302 is processed in real time using the variation amount ⁇ T in the facility 10 transmitted in real time by the temperature difference transmission unit 104 via the communication unit 301 instead of the variation amount ⁇ T. In this way, it is possible to determine the allocation of the fluctuation amount more accurately.
  • the heat pump system 1 according to the present embodiment has the equipment 10, the first heat pump device 20a1, the second heat pump device 20a2,. -1) A heat pump device 20a (n-1), an n-th heat pump device 20an, a control device 30, and a water pipe 40 are provided.
  • the control device 30 according to the present embodiment includes an outside air temperature detection unit 308 in addition to the control device 30 according to the first embodiment.
  • the outside air temperature detection unit 308 detects the outside air temperature of the heat pump device 20 provided with the outside air temperature detection unit 308.
  • the fluctuation amount allocation determination unit 305 included in the control device 30 acquires the outside air temperature detected by the outside air temperature detection unit 308 included in each of the heat pump devices 20. Then, the fluctuation amount allocation determination unit 305 corrects the influence of the acquired outside air temperature on the temperature change of water in each of the heat pump devices 20, and determines the allocation of each fluctuation amount of the heat pump devices 20. Other than that, it is the same as that of control device 30 by a first embodiment, and the processing flow of control device 30 by this embodiment is the same as the processing flow of control device 30 by a first embodiment.
  • the temperature fluctuation control unit 304 controls the fluctuation amount ⁇ T of the water temperature in the facility 10, the device capacity of each of the heat pump devices 20, the fluctuation amount ⁇ T of the water temperature in the facility Each of the target outlet water temperature, the measured inlet water temperature, and the measured outlet water temperature in each of the heat pump device 20a1, the second heat pump device 20a2, ..., and the (n-1) th heat pump device 20a (n-1)
  • the control command which fluctuates the temperature of water is generated based on the above, and each of the heat pump apparatus 20 is controlled.
  • the fluctuation amount allocation determination unit 305 allocates the fluctuation amounts of each of the n-th heat pump device 20 an and the other heat pump devices 20 other than the n-th heat pump device 20 an disposed most downstream in the water circulation path of the heat pump device 20.
  • the allocation of the amount of fluctuation of the other heat pump devices 20 other than the n-th heat pump device 20an is determined so that the amount of fluctuation allocated to the n-th heat pump device 20an is smaller than the amount of fluctuation normally allocated. In this way, it is possible to use inexpensive parts in the heat exchangers of the heat pump apparatus located at the most downstream position of the plurality of heat pump apparatuses connected in series in the heat pump system, thereby miniaturizing the heat pump system and the heat pump system. The manufacturing cost can be reduced.
  • the control device 30 includes an outside air temperature detection unit 308.
  • the outside air temperature detection unit 308 detects the outside air temperature of the heat pump device 20 provided with the outside air temperature detection unit 308.
  • the fluctuation amount allocation determination unit 305 included in the control device 30 acquires the outside air temperature detected by the outside air temperature detection unit 308 included in each of the heat pump devices 20. Then, the fluctuation amount allocation determination unit 305 corrects the influence of the acquired outside air temperature on the temperature change of water in each of the heat pump devices 20, and determines the allocation of each fluctuation amount of the heat pump devices 20. In this way, it is possible to determine the allocation of the fluctuation amount more accurately.
  • the storage unit 302 in the embodiment of the present invention may be provided anywhere as long as appropriate transmission and reception of information is performed.
  • the storage unit 302 may store a plurality of data in a distributed manner in a range where appropriate transmission and reception of information is performed.
  • the above-mentioned speed control units 104 and 104a, the automatic train operation devices 102, 102a and 102b, and the ATP device 20 have a computer system inside.
  • the process of the process described above is stored in the form of a program in a computer readable recording medium, and the process is performed by the computer reading and executing the program.
  • the computer-readable recording medium refers to a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory and the like.
  • the computer program may be distributed to a computer through a communication line, and the computer receiving the distribution may execute the program.
  • the program may realize part of the functions described above.
  • the program may be a file capable of realizing the above-described functions in combination with a program already recorded in a computer system, a so-called difference file (difference program).
  • control device control method and program, it is possible to use inexpensive parts in the heat exchanger of the heat pump apparatus located most downstream of the plurality of heat pump apparatuses connected in series in the heat pump system And the manufacturing cost of the heat pump system can be reduced.

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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)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Other Air-Conditioning Systems (AREA)
PCT/JP2016/059821 2015-04-14 2016-03-28 制御装置、制御方法及びプログラム Ceased WO2016167106A1 (ja)

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KR1020177027691A KR101987571B1 (ko) 2015-04-14 2016-03-28 제어 장치, 제어 방법 및 프로그램

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CZ2022492A3 (cs) * 2022-11-22 2023-11-15 KovalĂ­k Electrotechnics s.r.o. Zapojení tepelných čerpadel a způsob řízení tepelných čerpadel tohoto zapojení
EP4560203A1 (en) * 2023-11-24 2025-05-28 BDR Thermea Group B.V. Heat pump system

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JP2012225629A (ja) * 2011-04-22 2012-11-15 Hitachi Plant Technologies Ltd 冷熱源装置の運転制御システム
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CN107429951A (zh) 2017-12-01
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EP3264009A4 (en) 2018-02-28
JP6592858B2 (ja) 2019-10-23
KR20170125914A (ko) 2017-11-15
JP2016200370A (ja) 2016-12-01

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