WO2016112788A1 - Appareillage en parallèle respectueux de l'environnement et économe en énergie pour la régulation de la température et de l'humidité - Google Patents

Appareillage en parallèle respectueux de l'environnement et économe en énergie pour la régulation de la température et de l'humidité Download PDF

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Publication number
WO2016112788A1
WO2016112788A1 PCT/CN2016/000023 CN2016000023W WO2016112788A1 WO 2016112788 A1 WO2016112788 A1 WO 2016112788A1 CN 2016000023 W CN2016000023 W CN 2016000023W WO 2016112788 A1 WO2016112788 A1 WO 2016112788A1
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WIPO (PCT)
Prior art keywords
temperature
coil
heat exchange
humidity
solenoid valve
Prior art date
Application number
PCT/CN2016/000023
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English (en)
Chinese (zh)
Inventor
陈志刚
郑礼刚
徐育彬
黄俊明
陈昌宇
关锡阳
陈明海
张运添
Original Assignee
广州市顺景制冷设备有限公司
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Application filed by 广州市顺景制冷设备有限公司 filed Critical 广州市顺景制冷设备有限公司
Publication of WO2016112788A1 publication Critical patent/WO2016112788A1/fr
Priority to US15/644,814 priority Critical patent/US20170307235A1/en

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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
    • F24F5/0007—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 cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001—Compression cycle type
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • 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
    • 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
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • 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
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity 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
    • F25B6/00—Compression machines, plants or systems, with several condenser circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/10—Pressure
    • F24F2140/12—Heat-exchange fluid pressure
    • 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
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/075—Details of compressors or related parts with parallel compressors
    • F25B2400/0751—Details of compressors or related parts with parallel compressors the compressors having different capacities
    • 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
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1931—Discharge pressures
    • 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
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1933—Suction pressures

Definitions

  • the utility model relates to an environmental protection and energy-saving parallel temperature and humidity regulation device.
  • the relative humidity inside is below 75%. Therefore, in order to achieve the control target of the relative humidity of the refrigerator, in the actual use that has been put into operation, the conventional air cooler is operated with a low air volume and an auxiliary electric heating is added between the evaporation coil and the fan.
  • the function of temperature regulation and dehumidification is realized.
  • This method can achieve the temperature and humidity control target of the cold storage to a certain extent, but the auxiliary electric heating method is used to compensate the heat, and the energy consumption is large, and it has certain safety hazards and is not suitable for popularization.
  • the primary object of the utility model is to provide an environmentally-friendly and energy-saving parallel temperature and humidity control device with low energy consumption and low temperature consumption, which is suitable for popularization and application.
  • the specific scheme of the utility model is as follows:
  • An environmentally-friendly and energy-saving parallel temperature and humidity control device characterized in that:
  • the utility model comprises a compressor unit connected by a pipeline, an oil separator, a condenser, an indoor heat exchange unit and a gas-liquid separator; the compressor unit comprises two or more compressors, and the same or different models are used between the compressors
  • the number of indoor heat exchange units is two or more, and includes an evaporation coil and a secondary heat exchange coil, wherein the evaporation coil and the secondary heat exchange coil are located in a temperature and humidity controlled interval (100) Inside, the temperature and humidity controlled zone (100) is also provided with a temperature and humidity transmitter;
  • An output end of the compressor unit is connected to an input end of the condenser through the oil separator, and an output end of the condenser is divided into two paths, one of which passes through an evaporation coil solenoid valve and the evaporation coil
  • the input end is connected, and the other end is connected to the input end of the secondary heat exchange coil through a secondary heat exchange coil solenoid valve, and the output end of the secondary heat exchange coil is connected to the input end of a check valve
  • the output end of the one-way valve and the output end of the evaporating coil solenoid valve are combined into one way, and then connected to the input end of the evaporating coil through a throttling device, and the output end of the evaporating coil passes through
  • the gas-liquid separator is connected to an input end of the compressor group;
  • the utility model also includes a bypass solenoid valve, one end of the bypass solenoid valve is connected to the pipeline between the output end of the compressor unit and the input end of the condenser, and the other end is connected to the output end of the condenser and is divided into two On the pipeline before the road;
  • the utility model further comprises an intelligent control cabinet, wherein the compressor unit, the bypass solenoid valve, the evaporation coil solenoid valve, the secondary heat exchange coil solenoid valve and the temperature and humidity transmitter are respectively electrically connected with the intelligent control cabinet.
  • the liquid storage device is further connected to the output line of the condenser in two stages before the output end of the condenser, and one end of the bypass electromagnetic valve is connected to the output end of the compressor unit.
  • the conduit between the input ends of the condenser is connected to the output of the reservoir.
  • the method further includes an outer rotor motor electrically connected to the intelligent control cabinet, the outer rotor motor is located at one side of the evaporation coil, and the negative pressure port of the outer rotor motor and the evaporation coil In contrast, the secondary heat exchange coil is located between the evaporation coil and the outer rotor motor.
  • the method further includes a high voltage sensor, a low pressure sensor and a first controller respectively electrically connected to the intelligent control cabinet, wherein the high pressure sensor is disposed at an output end of the compressor group, and the low pressure sensor is disposed at the An input end of the compressor unit, each of the compressors being respectively provided with the first control Device.
  • a high voltage sensor is disposed at an output end of the compressor group
  • the low pressure sensor is disposed at the An input end of the compressor unit, each of the compressors being respectively provided with the first control Device.
  • the compressor unit is further provided with a second overall controller.
  • an electronic oil balancer is further included, and the electronic oil balancer is respectively disposed between each of the compressor and the speed oil separator.
  • the throttle device is a thermal expansion valve
  • the thermal expansion valve includes a valve body, a capillary tube, and a temperature sensing package
  • the temperature sensing is disposed at an output end of the evaporation coil
  • the temperature sensing package The valve body is connected by the capillary.
  • the secondary heat exchange coil is a finned condenser.
  • FIG. 1 is a schematic structural view of a system according to an embodiment of the present invention.
  • an environmentally-friendly and energy-saving parallel temperature and humidity control device is characterized by:
  • the utility model comprises a compressor unit connected by a pipeline, an oil separator 2, a condenser 3, an indoor heat exchange unit 12 and a gas-liquid separator 6; the compressor unit comprises two or more compressors 1 and between the compressors 1 The same or different models are used; the number of the indoor heat exchange units 12 is two or more, including the evaporation coil 13 and the secondary heat exchange coil 14, wherein the evaporation coil 13 and the secondary heat exchange The coil 14 is located in the temperature and humidity controlled section 100, and the temperature and humidity controlled section 100 is further provided with a temperature and humidity transmitter 21;
  • a bypass solenoid valve 4 is also included, one end of the bypass solenoid valve 4 is connected to the pipeline between the output end of the compressor unit and the input end of the condenser 3, and the other end is connected to the output of the condenser 3.
  • the end is divided into two lines before the pipeline;
  • the utility model also includes an intelligent control cabinet 7, the compressor unit, the bypass solenoid valve 4, the evaporating coil solenoid valve 8, the secondary heat exchange coil solenoid valve 9 and the temperature and humidity transmitter 21 respectively and the intelligent control cabinet 7 electrical connection.
  • the accumulator 5 is further connected in series to the line before the output end of the condenser 3 is divided into two lines, and one end of the speed bypass solenoid valve 4 is connected. The other end is connected to the output end of the accumulator 5 on the line between the output of the compressor unit and the input end of the condenser 3.
  • an outer rotor motor 15 electrically connected to the intelligent control cabinet 7 is provided, the outer rotor motor 15 is located at one side of the evaporation coil 13, and the outer rotor motor 15 a negative pressure port is opposite to the evaporation coil 13, and the secondary heat exchange coil 14 is located at the evaporation tray
  • the tube 13 is interposed between the outer rotor motor 15.
  • the compressor unit is further provided with a second overall controller 19 for protecting the components of the compressor 1 and the like, generally adopting a normally closed type signal and adopting a series connection form during use. If the oil pressure is too low or the high pressure is too high (the high and low pressure settings are all adjustable within a certain range), it will be in the off state. When the intelligent control system detects that the high and low voltage controllers are in an open state, it will stop. The relevant components operate to protect the system.
  • an electronic oil balancer 20 is further included, and the electronic oil balancer 20 is disposed between each of the compressor 1 and the oil separator 2, respectively.
  • the electronic oil balancer 20 is a device with an oil level sensor and a solenoid valve.
  • the oil level sensor When the oil level sensor detects that the oil level in the compressor 1 is low, the signal will open the solenoid valve, and the oil separator 2 The lubricating oil in the middle oil reservoir is replenished into the cylinder of the compressor to ensure sufficient lubricating oil in the compressor 1, which can ensure the normal operation of the compressor 1, and the lubricating and cooling functions of the various moving parts of the compressor 1, when the compressor
  • the electronic oil balancer 20 When the middle oil level is too low and the corresponding lubricating oil cannot be replenished, the electronic oil balancer 20 will issue an alarm signal and stop the operation of the corresponding compressor 1 through the intelligent control system to protect the utility.
  • the throttle device 10 is a thermal expansion valve
  • the thermal expansion valve includes a valve body, a capillary tube and a temperature sensing package, and the temperature sensing is disposed at an output end of the evaporation coil 13 And the temperature sensing package is connected to the valve body through the capillary.
  • the secondary heat exchange coil 14 is a finned condenser 3, and the function thereof is to replace the conventional auxiliary electric heating to heat and circulate the circulating air, thereby avoiding the use of freezing and dehumidifying.
  • the temperature in the library drops too fast.
  • the cold storage temperature has reached the lower limit of the control range and must be exited from the dehumidification operation.
  • the secondary heat exchange coil 14 is used to heat and circulate the circulating air by using the residual heat of condensation to slow down the temperature drop rate of the cold storage, which can provide more favorable operating conditions for the operation of the freezing and dehumidifying operation, and enhance the dehumidification capacity of the system to meet the cold storage of the medicine storage. Temperature and relative humidity control requirements.
  • the environmentally-friendly and energy-saving parallel temperature and humidity control device includes a control system in addition to the refrigerant circulation system.
  • the temperature and humidity transmitter 21 located in the controlled temperature and humidity interval 100 collects the indoor temperature and humidity signal, and feeds the signal back to the energy-saving temperature and humidity dehumidification system control cabinet, and performs related logic through the programmable controller (PLC) in the control cabinet. Operation and comparison, automatically select the operating mode of the environmentally-friendly and energy-saving parallel temperature and humidity control equipment, and issue relevant control signals to control the operating state of the relevant components to achieve the goal of automatic temperature and humidity control.
  • PLC programmable controller
  • the temperature and humidity control device is used in a medicine refrigerator, the temperature control of the refrigerator requires 2 ° C to 8 ° C, and the relative humidity is between 35% and 75%.
  • the parameters of the control system of the temperature and humidity control device can be made. The following settings; temperature control mode basic operating parameter settings: starting temperature 7.0 ° C, shutdown temperature 3.0 ° C, dehumidification mode: lower temperature limit 3.2 ° C, upper temperature limit 7.0 ° C, dehumidification shutdown relative humidity 50%, dehumidification boot relative humidity 70%; (According to the principle of temperature priority, ensure the relative humidity of the cold storage is adjusted and controlled under the premise of the cold storage temperature between 3 °C and 7 °C)
  • the temperature and humidity control device operates in the temperature regulation mode: that is, the compressor 1 is started, and the high temperature and high pressure refrigerant gas discharged from the exhaust port of the compressor 1 passes.
  • the high-temperature high-pressure refrigerant gas is condensed and exchanged by the condenser 3 to become a medium-temperature high-pressure refrigerant liquid, and passes through
  • the accumulator 5 enters the refrigerant supply line to the evaporating coil solenoid valve 8 and The front end of the secondary heat exchange coil solenoid valve 9 is in the tempering mode of operation, the evaporating coil solenoid valve 8 is in an open state (refrigerant can pass), and the secondary heat exchange coil solenoid valve 9 is in a closed state, cooling
  • the liquid enters the throttling device 10 through the evaporating coil solenoid valve 8.
  • the refrigerant After the decompression and throttling of the throttling device 10, the refrigerant enters the evaporating coil 13 for evaporation, and the indoor heat exchange device 12 (indoor heat exchange unit)
  • the outer rotor motor 15 is in a state of high speed operation, forcing the air in the temperature and humidity controlled section to pass through the heat exchange of the evaporation coil 13 of the indoor heat exchange device 12 to achieve the purpose of cooling and temperature regulation, and evaporating in the evaporation coil 13
  • the liquid refrigerant after the heat exchange becomes a low-temperature low-pressure gas refrigerant (or a small amount of refrigerant liquid which is not completely evaporated) and returns to the gas-liquid separator 6.
  • the gaseous refrigerant After the gas-liquid separator 6 is processed, the gaseous refrigerant reaches the compressor.
  • the suction end of 1 is discharged from the exhaust port of the compressor 1 by the compression treatment of the compressor 1, thereby forming a refrigerant circulation path in a complete temperature adjustment mode.
  • the system is a parallel system, and the compression process of the refrigerant from the low-temperature low-pressure gas state to the high-temperature high-pressure gas state is completed by two or more compressors of the same model or different types, and the compressor is started and stopped.
  • the quantity of the pressure parameter value collected by the low pressure sensor 16 is fed back to the intelligent control cabinet 7, which issues an associated control signal according to a predetermined logic relationship to automatically complete the loading of the refrigeration system (increasing the number of compressor opening) unloading (reducing the number of compressor opening).
  • the order of starting and stopping of the compressor can also be determined by its accumulated running time, so that the cumulative running time of each compressor is relatively balanced.
  • the number of indoor heat exchange devices 12 in the temperature and humidity controlled interval may also be plural, and the operating state thereof may also be independently controlled.
  • the temperature and humidity control device When the temperature and humidity transmitter 21 detects that the temperature in the library is between 3 ° C and 7 ° C, and the relative humidity in the library exceeds 70%, the temperature and humidity control device is automatically put into the dehumidification mode operation, and the system flow is as follows:
  • the compressor 1 is started, and after the high-temperature high-pressure refrigerant gas discharged from the exhaust port of the compressor 1 passes through the oil separator 2, since the bypass solenoid valve 4 is in the open state in this mode, part of the high-temperature high-pressure refrigerant gas passes through
  • the solenoid valve does not need to flow through the condenser 3 and the accumulator 5 directly through the refrigerant line to the front end of the evaporating coil solenoid valve 8 and the secondary heat exchange coil solenoid valve 9, in which the evaporating coil is operated in a dehumidifying mode.
  • the solenoid valve 8 is in a closed state, the secondary heat exchange coil solenoid valve 9 is in an open state (refrigerant can pass), and the high pressure and higher temperature refrigerant is cooled by the secondary heat exchange coil 14 and then passed through a throttling device.
  • the refrigerant enters the evaporating coil 13 for evaporation, and at this time, the outer rotor motor 14 of the indoor heat exchange device 12 is in a state of low speed operation (on the one hand, the circulating air of the temperature and humidity controlled section is forcibly forced)
  • the heat exchange through the evaporation coil 13 of the indoor heat exchange device 12 is relatively slow,
  • the circulating air is brought to a temperature lower than the dew point at the evaporation coil 13, and the condensed water is deposited at the fins through the drainage system to achieve the purpose of freezing and dehumidifying, and on the other hand, to avoid passing through the evaporation coil 13
  • the circulating air cooling temperature is too large, so the circulating heat of the chilled and dehumidified circulating air is assisted by the condensing heat in the secondary heat exchange coil 14 , and the liquid refrigerant after the evaporative heat exchange in the evaporating coil 13 becomes low temperature and low pressure.
  • the gaseous refrigerant (or a small amount of refrigerant liquid that has not completely evaporated) is returned to the gas-liquid separator 6, and after passing through the treatment of the gas-liquid separator 6, the gaseous refrigerant reaches the suction end of the compressor 1, and passes through the compressor 1 After the compression process, it is discharged from the exhaust port of the compressor 1, thereby forming a complete refrigerant circulation path in the dehumidification mode.
  • the system is a parallel system, and the number of start-stops (loading and unloading) of the compressor 1 of the system and the operating state of the indoor heat exchange device 12 are all fed back to the smart by the low-voltage sensor 16 and the temperature and humidity transmitter 21.
  • the control cabinet 7 is controlled by the intelligent control cabinet 7 to issue relevant refrigeration according to the set logic relationship.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Signal Processing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Mathematical Physics (AREA)
  • Fuzzy Systems (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

L'invention concerne un appareillage de régulation de la température et de l'humidité en parallèle, comprenant une unité à compresseurs, un condenseur (3), un serpentin d'évaporation (13) et un serpentin d'échange de chaleur secondaire (14) raccordés par l'intermédiaire d'une conduite. Le serpentin d'évaporation (13) et le serpentin d'échange de chaleur secondaire (14) sont situés dans une section à température et humidité réglées (100), un transducteur (21) de température et d'humidité étant disposé à l'intérieur de cette dernière. Une soupape électromagnétique de dérivation (4) et une armoire de commande intelligente (7) sont en outre comprises. L'appareillage de régulation de température et d'humidité ajoute le serpentin d'échange de chaleur secondaire (14) au serpentin d'évaporation intérieur (13) sur la base d'un système frigorifique classique, chauffe l'air en circulation, qui passe dans l'évaporateur et est congelé pour échanger de la chaleur, par la chaleur résiduelle de condensation de gaz d'échappement de l'unité à compresseurs, et réalise la coordination de la température et de l'humidité grâce à une conduite de dérivation à l'extrémité de sortie de l'unité à compresseurs, sans nécessiter une utilisation d'énergie électrique supplémentaire par application de la chaleur résiduelle de condensation. De plus, l'unité à compresseurs constituée d'une pluralité de compresseurs (1) peut se charger et se décharger automatiquement selon une demande de charge de l'extrémité arrière.
PCT/CN2016/000023 2015-01-15 2016-01-14 Appareillage en parallèle respectueux de l'environnement et économe en énergie pour la régulation de la température et de l'humidité WO2016112788A1 (fr)

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CN201520028338.8U CN204460550U (zh) 2015-01-15 2015-01-15 一种环保节能型并联温湿度调控设备
CN201520028338.8 2015-01-15

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CN110779273A (zh) * 2019-11-21 2020-02-11 郑州轻工业大学 一种有蓄能功能的新型储藏柜
CN115507497A (zh) * 2022-10-08 2022-12-23 珠海格力电器股份有限公司 空调系统及其防凝露控制方法

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