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CN112833579B - Multi-mode heat pump tobacco curing system and control method thereof - Google Patents

Multi-mode heat pump tobacco curing system and control method thereof Download PDF

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CN112833579B
CN112833579B CN202110093388.4A CN202110093388A CN112833579B CN 112833579 B CN112833579 B CN 112833579B CN 202110093388 A CN202110093388 A CN 202110093388A CN 112833579 B CN112833579 B CN 112833579B
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heat exchanger
variable frequency
fan
speed
flue
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CN112833579A (en
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陈佳恒
苏帆
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Zhengzhou University
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/10—Roasting or cooling tobacco
    • 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
    • F25B49/022—Compressor control arrangements
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
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Abstract

The invention discloses a multi-mode heat pump tobacco curing system and a control method thereof, wherein the multi-mode heat pump tobacco curing system comprises a controller, and a variable frequency compressor, a four-way reversing valve, an outdoor heat exchanger and a heat exchange air box which are connected with the controller; an adjustable air door is arranged at the inlet of the heat exchange air box, and a variable frequency fan is arranged at the outlet of the heat exchange air box; the variable frequency compressor is connected with a four-way reversing valve, and the four-way reversing valve is connected with the outdoor heat exchanger and the second indoor heat exchanger; the outdoor heat exchanger, the first indoor heat exchanger and the second indoor heat exchanger are connected together through the one-way valve and the electronic expansion valve. The heat pump controls the distribution of the air volume through the opening of the air adjusting door by adjusting the rotating speed of the compressor, the direction of the four-way reversing valve and the opening of the electronic expansion valve, so that the switching of multiple working modes of the system is realized, the aim of accurately controlling the temperature and humidity in the flue-cured barn is fulfilled, the heat of return air can be effectively recovered, the energy consumption of flue-cured tobaccos is reduced, the technological requirement of flue-cured tobaccos can be met, the aims of efficiently dehumidifying and accurately controlling the temperature and humidity of the flue-cured barn are fulfilled.

Description

一种多模式热泵烤烟系统及其控制方法A multi-mode heat pump flue-cured tobacco system and its control method

技术领域technical field

本发明属于热泵烤烟技术领域，具体涉及一种多模式热泵烤烟系统及其控制方法。The invention belongs to the technical field of heat pump flue-cured tobacco, and in particular relates to a multi-mode heat pump flue-cured tobacco system and a control method thereof.

背景技术Background technique

热泵干燥系统具有除湿速度快、效率高、能耗低的优点，可大幅降低烘干能耗，减少污染物和温室气体排放，且能够提高产品烘烤质量，已在烟草烘干领域得到了广泛的应用，取得了良好的社会和经济效益。热泵烤烟系统按照空气循环形式可分为开式系统、闭式系统以及半开式系统。The heat pump drying system has the advantages of fast dehumidification, high efficiency and low energy consumption, which can greatly reduce the energy consumption of drying, reduce pollutants and greenhouse gas emissions, and can improve the quality of product baking. It has been widely used in the field of tobacco drying. The application has achieved good social and economic benefits. The heat pump flue-cured tobacco system can be divided into open system, closed system and semi-open system according to the air circulation form.

开式系统只能对空气进行一次利用，从环境中吸入的新风经冷凝器加热后直接送入烤烟房，与烟叶进行换热换湿作业后直接排放到环境中，优点是系统结构简单、体积小、成本低，缺点是吸入的新风受环境空气温湿度影响较大，而且从烤烟室排出的高温空气所携带的热量将直接排放在空气中，能量利用率低，烘烤能耗高。闭式系统则将烤房种的空气在完全封闭的循环通道中循环利用，烤烟房中排出的高温高湿空气由蒸发器除湿处理后，再由冷凝器加热后重新送回烤烟房内与烟叶进行换热换湿作业，闭式系统不从外界环境中引入新风，也不向外界环境中排放废气，不存在新风热负荷，所以能耗最低，但该系统由于压缩机功率的持续输入，烤房温度会不断升高，不利于烤房内温度的精确控制。半开式系统将部分烤烟房中排出的回风与从外界引入的新风进行混合，再经由冷凝器加热后送入室内，半开式系统可回收回风中的部分热量，相较于开式系统更加节能，相较于闭式系统可有效实现烤房内的温度控制，但是回风中含湿量较大，增大了混合空气中的含湿量，会降低了系统内的除湿效率。The open system can only use the air once. The fresh air inhaled from the environment is heated by the condenser and sent directly to the flue-curing room. After heat and humidity exchange with the tobacco leaves, it is directly discharged into the environment. The advantages are that the system has simple structure and volume. Small, low cost, the disadvantage is that the inhaled fresh air is greatly affected by the temperature and humidity of the ambient air, and the heat carried by the high-temperature air discharged from the flue-cured tobacco room will be directly discharged into the air, the energy utilization rate is low, and the baking energy consumption is high. The closed system recycles the air in the flue-curing room in a completely closed circulation channel. The high-temperature and high-humidity air discharged from the flue-curing room is dehumidified by the evaporator, then heated by the condenser and sent back to the flue-curing room and the tobacco leaves. For heat and humidity exchange operations, the closed system does not introduce fresh air from the external environment, nor does it discharge exhaust gas into the external environment, and there is no heat load of the fresh air, so the energy consumption is the lowest, but the system has the lowest power consumption due to the continuous input of the compressor power. The room temperature will continue to rise, which is not conducive to the precise control of the temperature in the oven. The semi-open system mixes the return air discharged from part of the flue-cured tobacco room with the fresh air introduced from the outside, and then is heated by the condenser and sent into the room. The semi-open system can recover part of the heat in the return air. The system is more energy-saving, and can effectively control the temperature in the oven compared to the closed system, but the moisture content in the return air is relatively large, which increases the moisture content in the mixed air and reduces the dehumidification efficiency in the system.

发明内容SUMMARY OF THE INVENTION

为了解决现有技术的不足，本发明旨在提供一种具有多种工作模式的热泵烤烟系统及其控制方法，通过控制压缩机转速、四通换向阀方向、电子膨胀阀开度从而有效控制制冷剂的流向和流量，实现多种工作模式的切换，达到精准控制烤房内温湿度的目的，既更有效回收回风热量，降低烤烟能耗，又能达到烤烟的工艺要求。In order to solve the deficiencies of the prior art, the present invention aims to provide a heat pump flue-cured tobacco system with multiple working modes and a control method thereof, which can effectively control the speed of the compressor, the direction of the four-way reversing valve, and the opening of the electronic expansion valve. The flow direction and flow of the refrigerant realize the switching of various working modes and achieve the purpose of accurately controlling the temperature and humidity in the barn, which not only recovers the heat of the return air more effectively, reduces the energy consumption of flue-cured tobacco, but also meets the technological requirements of flue-cured tobacco.

为实现上述目的，本发明采用的技术方案为：To achieve the above object, the technical scheme adopted in the present invention is:

一种多模式热泵烤烟系统包括控制器和与控制器相连的变频压缩机、四通换向阀、室外换热器、设在换热风箱内部的室内换热器、传感器组；所述换热风箱的进口处设有可调式风门，出口处设有变频风机。A multi-mode heat pump flue-cured tobacco system includes a controller, a variable frequency compressor connected to the controller, a four-way reversing valve, an outdoor heat exchanger, an indoor heat exchanger arranged inside a heat exchange air box, and a sensor group; the heat exchange The inlet of the bellows is provided with an adjustable damper, and the outlet is provided with a variable frequency fan.

所述换热风箱内部通过独立分割设有第一风腔和第二风腔，所述第一风腔和第二风腔的进口和出口均连通在一起；所述室内换热器包括分别对应设在第一风腔和第二风腔内的第一室内换热器和第二室内换热器。The inside of the heat exchange bellows is independently divided into a first air cavity and a second air cavity, and the inlets and the outlets of the first air cavity and the second air cavity are connected together; The first indoor heat exchanger and the second indoor heat exchanger are arranged in the first air cavity and the second air cavity.

进一步地，所述变频压缩机的出口连接四通换向阀的第一连接口，四通换向阀的第二连接口连接室外换热器的一端，第三连接口连通变频压缩机的进口，第四连接口连接第二室内换热器的一端；所述室外换热器的另一端分别连接第一室内换热器的一端和第一单向阀的进口，第一单向阀的出口分别连接电子膨胀阀一端和第二单向阀的进口，第二单向阀的出口连接在第一室内换热器的另一端上，电子膨胀阀的另一端连接在第二室内换热器的另一端；所述传感器组包括设在换热风箱出口的第一温湿传感器、换热风箱进口的第二温湿传感器、烤房环境中的第三温湿传感器以及设在与变频压缩机的进气口相连管道上的温度压力传感器，传感器组采集的数据信号传递至控制器；控制器根据实际工况对变频压缩机、变频风机、电子膨胀阀和可调风门进行控制。Further, the outlet of the inverter compressor is connected to the first connection port of the four-way reversing valve, the second connection port of the four-way reversing valve is connected to one end of the outdoor heat exchanger, and the third connection port is connected to the inlet of the inverter compressor. , the fourth connection port is connected to one end of the second indoor heat exchanger; the other end of the outdoor heat exchanger is respectively connected to one end of the first indoor heat exchanger and the inlet of the first one-way valve, and the outlet of the first one-way valve One end of the electronic expansion valve and the inlet of the second one-way valve are respectively connected, the outlet of the second one-way valve is connected to the other end of the first indoor heat exchanger, and the other end of the electronic expansion valve is connected to the second indoor heat exchanger. The other end; the sensor group includes a first temperature and humidity sensor arranged at the outlet of the heat exchange air box, a second temperature and humidity sensor at the inlet of the heat exchange air box, a third temperature and humidity sensor in the environment of the baking room, and a temperature and humidity sensor arranged in the inverter compressor. The temperature and pressure sensor on the pipeline connected to the air inlet, the data signal collected by the sensor group is transmitted to the controller; the controller controls the variable frequency compressor, variable frequency fan, electronic expansion valve and adjustable damper according to the actual working conditions.

基于上述多模式热泵烤烟系统，本发明还提出了上述系统的控制方法，具体实现步骤为：Based on the above-mentioned multi-mode heat pump flue-cured tobacco system, the present invention also proposes a control method for the above-mentioned system, and the specific implementation steps are as follows:

1)根据烤烟不同过程需求，多模式热泵烤烟系统开启之后，通过控制器设置烤烟室内空气的目标温度t0和目标相对湿度

Figure BDA0002911876540000031
设置目标温度最大向上偏差值Δtu和最大向下偏差值为Δtd，Δtu和Δtd的范围为1-10℃；目标相对湿度最大向上偏差值为
Figure BDA0002911876540000032
的范围为0-20％；1) According to different process requirements of flue-cured tobacco, after the multi-mode heat pump flue-cured tobacco system is turned on, the target temperature t 0 and target relative humidity of the indoor air of flue-cured tobacco are set by the controller.
Figure BDA0002911876540000031
Set the maximum upward deviation value Δt u and the maximum downward deviation value of the target temperature as Δt d , the range of Δt u and Δt d is 1-10℃; the maximum upward deviation value of the target relative humidity is
Figure BDA0002911876540000032
The range is 0-20%;

2)通过控制器设置不同工作模式下的烤烟室内温升或温降速率上限值dtu和下限值dtd，dtu和dtd的范围为每分钟0.1-5℃，以及除湿速率上限值

Figure BDA0002911876540000033
和下限值
Figure BDA0002911876540000034
和
Figure BDA0002911876540000035
的范围为每分钟0.1％-5％；同时对系统开启时间进行计时，累计工作时间为τ；2) Set the upper limit dt u and lower limit dt d of the indoor temperature rise or temperature drop rate of flue-cured tobacco under different working modes through the controller. The range of dt u and dt d is 0.1-5℃ per minute, and the dehumidification rate Limit
Figure BDA0002911876540000033
and lower limit
Figure BDA0002911876540000034
and
Figure BDA0002911876540000035
The range is 0.1%-5% per minute; at the same time, the system startup time is timed, and the cumulative working time is τ;

3)机组工作过程中第三传感器实时检测烤烟室内当前的空气温度t1和相对湿度

Figure BDA0002911876540000036
并传递给控制器，控制器通过判断烤烟室内当前空气温度与目标温度的差值以及当前空气湿度与目标湿度的差值，控制器通过调节压缩机转速、四通换向阀方向、电子膨胀阀开度来控制制冷剂的流向和流量，通过调节风门的开度来控制风量的分配，从而实现系统多种工作模式的切换，达到对烤房内温湿度精准控制的目的，能更好的匹配物料在不同干燥阶段的温度与热量需要，做到能量的合理分配，避免浪费。3) During the working process of the unit, the third sensor detects the current air temperature t 1 and relative humidity in the flue-cured tobacco room in real time
Figure BDA0002911876540000036
And pass it to the controller. The controller judges the difference between the current air temperature and the target temperature in the flue-cured tobacco room and the difference between the current air humidity and the target humidity. The controller adjusts the compressor speed, the direction of the four-way reversing valve, and the electronic expansion valve. The opening degree is used to control the flow direction and flow of the refrigerant, and the distribution of the air volume is controlled by adjusting the opening degree of the damper, so as to realize the switching of various working modes of the system, and achieve the purpose of precise control of the temperature and humidity in the baking room, which can be better matched. The temperature and heat requirements of materials in different drying stages can be reasonably distributed to avoid waste.

4)热泵烤烟系统运行期间，对比累计工作时间τ与系统预设检测时间间隔τs大小，τs范围为1-10min；若τs＞τ，则系统保持目前工作模式不变；若τs≤τ，则τ清零，系统回到步骤3)继续判断并调整工作状态。4) During the operation of the heat pump flue-cured tobacco system, compare the accumulated working time τ with the preset detection time interval τ s of the system, the range of τ s is 1-10min; if τ s >τ, the system keeps the current working mode unchanged; if τ s ≤τ, then τ is cleared to zero, and the system returns to step 3) to continue judging and adjusting the working state.

其中，步骤3)中根据控制器的判断结果，系统选择执行对应的升温模式、升温除湿模式、除湿模式或者调温除湿模式，具体为：Wherein, in step 3), according to the judgment result of the controller, the system selects and executes the corresponding heating mode, heating and dehumidification mode, dehumidification mode or temperature adjustment and dehumidification mode, specifically:

31)若t1-t0＜-Δtd且

Figure BDA0002911876540000041
系统执行升温模式，控制器计算烤烟室内的实际温升速率dt，并将实际温升速率dt与目标温升速率上限值dtu、下限值dtd进行对比，根据对比结果进行系统调控；31) If t 1 -t 0 <-Δt d and
Figure BDA0002911876540000041
The system executes the heating mode, the controller calculates the actual temperature rise rate dt in the flue-cured tobacco room, and compares the actual temperature rise rate dt with the target temperature rise rate upper limit dt u and lower limit dt d , and performs system regulation according to the comparison result;

32)若t1-t0＜-Δtd且

Figure BDA0002911876540000042
系统执行升温除湿模式，控制器计算烤烟室内的实际除湿速率
Figure BDA0002911876540000043
并对比实际除湿速率
Figure BDA0002911876540000044
与目标除湿速率上限值
Figure BDA0002911876540000045
下限值
Figure BDA0002911876540000046
计算烤烟室内的实际温升速率dt，并对比实际温升速率dt与目标温升速率上限值dtu、下限值dtd，根据对比结果进行系统调控；32) If t 1 -t 0 <-Δt d and
Figure BDA0002911876540000042
The system executes the heating and dehumidification mode, and the controller calculates the actual dehumidification rate in the flue-cured tobacco room
Figure BDA0002911876540000043
And compare the actual dehumidification rate
Figure BDA0002911876540000044
and target dehumidification rate upper limit
Figure BDA0002911876540000045
lower limit
Figure BDA0002911876540000046
Calculate the actual temperature rise rate dt in the flue-cured tobacco room, and compare the actual temperature rise rate dt with the target temperature rise rate upper limit dt u and lower limit dt d , and perform system control according to the comparison results;

33)若-Δtd≤t1-t0≤Δtu且

Figure BDA0002911876540000047
系统执行除湿模式，控制器根据温度压力传感器采集的制冷剂压力计算蒸发温度te，对比蒸发温度te与预设最低蒸发温度ts，计算烤烟室内的实际除湿速率
Figure BDA0002911876540000048
并对比实际除湿速率
Figure BDA0002911876540000049
与目标除湿速率上限值
Figure BDA00029118765400000410
下限值
Figure BDA00029118765400000411
根据对比结果进行系统调控；33) If -Δt d ≤t 1 -t 0 ≤Δt u and
Figure BDA0002911876540000047
The system executes the dehumidification mode, the controller calculates the evaporation temperature te according to the refrigerant pressure collected by the temperature and pressure sensor, compares the evaporation temperature te with the preset minimum evaporation temperature ts , and calculates the actual dehumidification rate in the flue-cured tobacco room
Figure BDA0002911876540000048
And compare the actual dehumidification rate
Figure BDA0002911876540000049
and target dehumidification rate upper limit
Figure BDA00029118765400000410
lower limit
Figure BDA00029118765400000411
Carry out system control according to the comparison results;

34)若t1-t0＞-Δtd且

Figure BDA0002911876540000051
由控制器控制变频压缩机关机，并关闭室外换热器风机、电子膨胀阀和变频风机；34) If t 1 -t 0 >-Δt d and
Figure BDA0002911876540000051
The controller controls the inverter compressor to shut down, and closes the outdoor heat exchanger fan, electronic expansion valve and inverter fan;

35)若t1-t0＞Δtu且

Figure BDA0002911876540000052
系统执行调温除湿模式，由控制器计算烤烟室内的实际除湿速率
Figure BDA0002911876540000053
并对比实际除湿速率
Figure BDA0002911876540000054
与目标除湿速率上限值
Figure BDA0002911876540000055
下限值
Figure BDA0002911876540000056
计算烤烟室内的实际温降速率dt，并对比实际温降速率dt与目标温降速率上限值dtu、下限值dtd，根据对比结果进行系统调控。35) If t 1 -t 0 >Δt u and
Figure BDA0002911876540000052
The system executes the temperature adjustment and dehumidification mode, and the controller calculates the actual dehumidification rate in the flue-cured tobacco room
Figure BDA0002911876540000053
And compare the actual dehumidification rate
Figure BDA0002911876540000054
and target dehumidification rate upper limit
Figure BDA0002911876540000055
lower limit
Figure BDA0002911876540000056
Calculate the actual temperature drop rate dt in the flue-cured tobacco room, and compare the actual temperature drop rate dt with the target temperature drop rate upper limit dt u , lower limit dt d , and perform system control according to the comparison results.

其中，所述实际温升或温降速率dt为每个调节周期τs内的温升或者温降速率平均值，计算公式如下：Wherein, the actual temperature rise or temperature drop rate dt is the average temperature rise or temperature drop rate in each adjustment period τ s , and the calculation formula is as follows:

Figure BDA0002911876540000057
Figure BDA0002911876540000057

其中，q为流过换热风箱的空气质量流量，单位为m3/s；tio为换热风箱进出口温度差，单位为℃；Vdry为烤烟室内的空气体积，单位为m3；Among them, q is the air mass flow through the heat exchange air box, the unit is m 3 /s; t io is the temperature difference between the inlet and outlet of the heat exchange air box, the unit is °C; V dry is the air volume in the flue-cured tobacco room, the unit is m 3 ;

所述实际除湿速率

Figure BDA00029118765400000510
为每个调节周期τs内的除湿速率平均值，通过以下公式进行计算：The actual dehumidification rate
Figure BDA00029118765400000510
The average value of the dehumidification rate in each adjustment period τ s is calculated by the following formula:

Figure BDA0002911876540000058
Figure BDA0002911876540000058

其中

Figure BDA0002911876540000059
为换热风箱进出口相对含湿量差值。in
Figure BDA0002911876540000059
It is the relative humidity difference between the inlet and outlet of the heat exchange air box.

其中，步骤31)中根据实际温升速率dt对比目标温升速率上限值dtu、下限值dtd的结果，控制器对系统的调控具体为：Wherein, in step 31), according to the result of the actual temperature rise rate dt comparing the upper limit value dt u and the lower limit value dt d of the target temperature rise rate, the control of the system by the controller is specifically:

若dt＞dtu，则减小变频压缩机的转速，同时调整室外换热器的风机转速、电子膨胀阀的开度和变频风机的转速以适应变频压缩机转速变化；If dt>dt u , reduce the speed of the variable frequency compressor, and adjust the fan speed of the outdoor heat exchanger, the opening of the electronic expansion valve and the speed of the variable frequency fan to adapt to the speed change of the variable frequency compressor;

若dt＜dtd，则增大变频压缩机转速，同时调整室外换热器的风机转速、电子膨胀阀的开度和变频风机的转速以适应变频压缩机的转速变化；If dt < dt d , increase the speed of the inverter compressor, and adjust the fan speed of the outdoor heat exchanger, the opening of the electronic expansion valve and the speed of the inverter fan to adapt to the speed change of the inverter compressor;

若dtu≥dt≥dtd，系统工作参数不调整。If dt u ≥ dt ≥ dt d , the system operating parameters are not adjusted.

其中，步骤32)中根据实际除湿速率

Figure BDA0002911876540000061
对比目标除湿速率上限值
Figure BDA0002911876540000062
下限值
Figure BDA0002911876540000063
的结果，控制器对系统的调控具体为：Wherein, according to the actual dehumidification rate in step 32)
Figure BDA0002911876540000061
Compare the upper limit of the target dehumidification rate
Figure BDA0002911876540000062
lower limit
Figure BDA0002911876540000063
As a result, the controller's regulation of the system is as follows:

若

Figure BDA0002911876540000064
则减小可调式风门开度；若
Figure BDA0002911876540000065
则增大可调式风门开度；like
Figure BDA0002911876540000064
Then reduce the adjustable damper opening; if
Figure BDA0002911876540000065
Then increase the adjustable damper opening;

若

Figure BDA0002911876540000066
则可调式风门开度不变；然后，控制器根据实际温升速率dt对比目标温升速率上限值dtu、下限值dtd的结果，控制器对系统进行调控，具体为：like
Figure BDA0002911876540000066
Then, the opening of the adjustable damper remains unchanged; then, the controller controls the system according to the result of comparing the actual temperature rise rate dt with the upper limit dt u and the lower limit dt d of the target temperature rise rate, specifically:

若dt＞dtu，则减小变频压缩机转速，同时调整室外换热器风机的风速、电子膨胀阀开度和变频风机风速以适应压缩机转速变化；若dt＜dtd，则增大变频压缩机转速，同时调整室外换热器风机的风速、电子膨胀阀开度和变频风机风速以适应变频压缩机转速变化；若dtu≥dt≥dtd，系统工作参数不调整。If dt > dt u , reduce the speed of the variable frequency compressor, and adjust the wind speed of the outdoor heat exchanger fan, the opening of the electronic expansion valve and the wind speed of the variable frequency fan to adapt to the change of the compressor speed; if dt < dt d , increase the variable frequency Compressor speed, adjust the wind speed of outdoor heat exchanger fan, electronic expansion valve opening and variable frequency fan wind speed to adapt to the speed change of variable frequency compressor; if dt u ≥ dt ≥ dt d , the system operating parameters will not be adjusted.

其中，步骤33)中根据计算蒸发温度te与预设最低蒸发温度ts的比对结果，控制器对系统的调控具体为：Wherein, according to the comparison result of the calculated evaporation temperature t e and the preset minimum evaporation temperature t s in step 33), the control and regulation of the system by the controller is specifically:

若te＜ts，则立即减小变频压缩机转速，同时调整室外换热器风机风速、电子膨胀阀开度和风机风速以适应压缩机转速变化；If t e < ts , reduce the speed of the inverter compressor immediately, and adjust the fan speed of the outdoor heat exchanger, the opening of the electronic expansion valve and the fan speed to adapt to the change of the compressor speed;

若te≥ts，则不调整；然后，控制器根据实际除湿速率

Figure BDA0002911876540000071
对比目标除湿速率上限值
Figure BDA0002911876540000072
下限值
Figure BDA0002911876540000073
的结果，控制器对系统进行调控，具体为：If t e ≥ t s , do not adjust; then, the controller according to the actual dehumidification rate
Figure BDA0002911876540000071
Compare the upper limit of the target dehumidification rate
Figure BDA0002911876540000072
lower limit
Figure BDA0002911876540000073
As a result, the controller regulates the system, specifically:

若

Figure BDA0002911876540000074
则减小可调式风门开度和变频压缩机转速，同时调整室外换热器风机风速、电子膨胀阀开度和变频风机风速以适应变频压缩机转速变化；若
Figure BDA0002911876540000075
则增大可调式风门开度和变频压缩机转速，同时调整室外换热器风机风速、电子膨胀阀开度和变频风机风速以适应变频压缩机转速变化；若
Figure BDA0002911876540000076
则可调式风门开度和变频压缩机转速不变。like
Figure BDA0002911876540000074
Then reduce the opening of the adjustable damper and the speed of the variable frequency compressor, and adjust the fan speed of the outdoor heat exchanger, the opening of the electronic expansion valve and the wind speed of the variable frequency fan to adapt to the speed change of the variable frequency compressor; if
Figure BDA0002911876540000075
Then increase the opening of the adjustable damper and the speed of the inverter compressor, and adjust the fan speed of the outdoor heat exchanger, the opening of the electronic expansion valve and the fan speed of the inverter fan to adapt to the speed change of the inverter compressor; if
Figure BDA0002911876540000076
Then the adjustable damper opening and the inverter compressor speed remain unchanged.

其中，步骤35)中根据实际除湿速率

Figure BDA0002911876540000077
对比目标除湿速率上限值
Figure BDA0002911876540000078
下限值
Figure BDA0002911876540000079
的结果，控制器对系统的调控具体为：Wherein, according to the actual dehumidification rate in step 35)
Figure BDA0002911876540000077
Compare the upper limit of the target dehumidification rate
Figure BDA0002911876540000078
lower limit
Figure BDA0002911876540000079
As a result, the controller's regulation of the system is as follows:

若

Figure BDA00029118765400000710
则减小变频风机转速；若
Figure BDA00029118765400000711
则增大变频风机转速；like
Figure BDA00029118765400000710
Then reduce the frequency conversion fan speed; if
Figure BDA00029118765400000711
Then increase the frequency conversion fan speed;

若

Figure BDA00029118765400000712
则不调整；然后，控制器根据实际温升速率dt对比目标温升速率上限值dtu、下限值dtd的结果，控制器对系统进行调控，具体为：like
Figure BDA00029118765400000712
Then, the controller controls the system according to the result of comparing the actual temperature rise rate dt with the upper limit value dt u and the lower limit value dt d of the target temperature rise rate, specifically:

若dt＞dtu，则减小变频压缩机转速，同时调整室外换热器风机风速、电子膨胀阀开度和变频风机风速以适应变频压缩机转速变化；若dt＜dtd，则增大变频压缩机转速，同时调整室外换热器风机风速、电子膨胀阀开度和变频风机风速以适应变频压缩机转速变化；若dtu≥dt≥dtd，系统工作参数不调整。If dt>dt u , reduce the speed of the variable frequency compressor, and adjust the fan speed of the outdoor heat exchanger, the opening of the electronic expansion valve and the wind speed of the variable frequency fan to adapt to the speed change of the variable frequency compressor; if dt < dt d , increase the variable frequency The speed of the compressor is adjusted, and the wind speed of the outdoor heat exchanger fan, the opening of the electronic expansion valve and the wind speed of the variable frequency fan are adjusted to adapt to the speed change of the variable frequency compressor;

本发明具有的有益效果为：The beneficial effects that the present invention has are:

针对现有热泵烤烟系统中，开式系统能量利用率低，能耗高，闭式系统无法有效控制烤房温度，而半开式系统除湿效率低的缺点，本发明所提出的多模式热泵烤烟系统吸收三种系统的优点，摈弃其缺点，具备多种工作模式，既更有效回收回风热量，降低烤烟能耗，又能达到烤烟的工艺要求，可实现高效除湿，且精确控制烤房温度的目的。In view of the shortcomings of the existing heat pump flue-cured tobacco system, the open system has low energy utilization rate and high energy consumption, the closed system cannot effectively control the temperature of the barn, and the semi-open system has low dehumidification efficiency. The system absorbs the advantages of the three systems and discards their shortcomings. It has a variety of working modes, which not only recovers the heat of the return air more effectively, reduces the energy consumption of flue-cured tobacco, but also meets the technological requirements of flue-cured tobacco. It can achieve efficient dehumidification and accurately control the temperature of the barn. the goal of.

附图说明Description of drawings

图1为本发明多模式热泵烤烟系统的结构示意图；Fig. 1 is the structural representation of the multi-mode heat pump flue-cured tobacco system of the present invention;

图2位本发明控制方法的逻辑框图。Fig. 2 is a logic block diagram of the control method of the present invention.

具体实施方式Detailed ways

以下将结合附图对本发明作进一步的描述。The present invention will be further described below with reference to the accompanying drawings.

如图1所示，本发明提供一种具有多模式热泵烤烟系统包括控制器305和与控制器305相连的变频压缩机101、四通换向阀102、室外换热器103、设在换热风箱201内部的室内换热器、传感器组等。As shown in FIG. 1, the present invention provides a flue-cured tobacco system with a multi-mode heat pump including a controller 305, a variable frequency compressor 101 connected to the controller 305, a four-way reversing valve 102, an outdoor heat exchanger 103, Indoor heat exchangers, sensor groups, etc. inside the bellows 201 .

换热风箱201包括两个独立的风腔，中间完全隔断，其内部独立分割成第一风腔204和第二风腔205，两个风腔的进口和出口均连通在一起。换热风箱的进口处设有可调式风门202，出口处设有变频风机203；室内换热器包括分别对应设在第一风腔204和第二风腔205内的第一室内换热器106和第二室内换热器107；变频压缩机101的出口连接四通换向阀102的第一连接口102-1，四通换向阀102的第二连接口102-2连接室外换热器103的一端，第三连接口102-3连通变频压缩机101的进口，第四连接口102-4连接第二室内换热器107的一端；室外换热器103的另一端分别连接第一室内换热器106的一端和第一单向阀104的进口，第一单向阀104的出口分别连接电子膨胀阀108一端和第二单向阀105的进口，第二单向阀105的出口连接在第一室内换热器106的另一端上，电子膨胀阀108的另一端连接在第二室内换热器107的另一端；The heat exchange air box 201 includes two independent air cavities, the middle of which is completely cut off, and the interior thereof is independently divided into a first air cavity 204 and a second air cavity 205, and the inlet and the outlet of the two air cavities are connected together. The inlet of the heat exchange air box is provided with an adjustable damper 202, and the outlet is provided with a variable frequency fan 203; the indoor heat exchanger includes a first indoor heat exchanger 106 corresponding to the first air cavity 204 and the second air cavity 205 respectively. and the second indoor heat exchanger 107; the outlet of the inverter compressor 101 is connected to the first connection port 102-1 of the four-way reversing valve 102, and the second connection port 102-2 of the four-way reversing valve 102 is connected to the outdoor heat exchanger One end of 103, the third connection port 102-3 is connected to the inlet of the variable frequency compressor 101, the fourth connection port 102-4 is connected to one end of the second indoor heat exchanger 107; the other end of the outdoor heat exchanger 103 is connected to the first indoor heat exchanger 103 respectively. One end of the heat exchanger 106 is connected to the inlet of the first one-way valve 104, and the outlet of the first one-way valve 104 is respectively connected to one end of the electronic expansion valve 108 and the inlet of the second one-way valve 105, and the outlet of the second one-way valve 105 is connected to On the other end of the first indoor heat exchanger 106, the other end of the electronic expansion valve 108 is connected to the other end of the second indoor heat exchanger 107;

传感器组包括第一温湿传感器301、第二温湿传感器302、第三温湿传感器303和温度压力传感器304。其中第一温湿传感器301设在换热风箱出口处，第二温湿传感器302设在换热风箱进口处，第三温湿传感器303设在换热风箱201外、烤房室内环境中，温度压力传感器304设在与变频压缩机101的进气口相连的管道上；The sensor group includes a first temperature and humidity sensor 301 , a second temperature and humidity sensor 302 , a third temperature and humidity sensor 303 and a temperature and pressure sensor 304 . The first temperature and humidity sensor 301 is arranged at the outlet of the heat exchange air box, the second temperature and humidity sensor 302 is arranged at the inlet of the heat exchange air box, and the third temperature and humidity sensor 303 is arranged outside the heat exchange air box 201 and in the indoor environment of the oven. The pressure sensor 304 is arranged on the pipeline connected to the air inlet of the variable frequency compressor 101;

为了达到多模式恒温除湿烤烟的效果，本实施例的具有多模式热泵烤烟系统可实现通过控制器305输入信号驱动四通换向阀102其四个连接口内部不同的导通方式进行工作模式的切换，即实现第一工作状态和第二工作状态的切换。In order to achieve the effect of multi-mode constant temperature and dehumidification flue-cured tobacco, the multi-mode heat pump flue-cured tobacco system of this embodiment can realize the operation mode of the four-way reversing valve 102 driven by the input signal of the controller 305 in different conduction modes inside the four connecting ports. Switching means switching between the first working state and the second working state.

第一工作状态：四通换向阀102的第一连接口102-1与第二连接口102-2内部导通，第三连接口102-3与第四连接口102-4内部导通；The first working state: the first connection port 102-1 of the four-way reversing valve 102 is internally connected with the second connection port 102-2, and the third connection port 102-3 and the fourth connection port 102-4 are internally connected;

第二工作状态：四通换向阀102的第一连接口102-1与第四连接口102-4内部导通，第二连接口102-2与第三连接口102-3内部导通。The second working state: the first connection port 102-1 of the four-way reversing valve 102 is internally connected with the fourth connection port 102-4, and the second connection port 102-2 and the third connection port 102-3 are connected internally.

相应的，本实施例还提供了多模式热泵烤烟系统的控制方法，根据烤烟工艺要求，烤烟热泵系统具有升温模式、升温除湿模式、调温除湿模式和除湿模式四种工作模式，该多模式热泵烤烟系统可通过调节压缩机101的转速、切换四通换向阀102的工作状态、调节电子膨胀阀108的开度从而有效控制制冷剂的流向和流量，通过控制可调风门202的开度来有效控制风量的分配，从而实现系统多种工作模式的切换。Correspondingly, this embodiment also provides a control method for a multi-mode heat pump flue-cured tobacco system. According to the flue-cured tobacco process requirements, the flue-cured tobacco heat pump system has four working modes: a heating mode, a heating and dehumidification mode, a temperature adjustment dehumidification mode and a dehumidification mode. The multi-mode heat pump The flue-cured tobacco system can effectively control the flow direction and flow of the refrigerant by adjusting the speed of the compressor 101, switching the working state of the four-way reversing valve 102, and adjusting the opening of the electronic expansion valve 108. Effectively control the distribution of air volume, so as to realize the switching of various working modes of the system.

其中升温模式：变频压缩机101开启，四通换向阀102切换至第二工作状态，电子膨胀阀108开启，室外换热器103风机开启，可调式风门202关闭第一风腔204的进口，完全开启第二风腔205的进口，变频风机203开启；The heating mode: the inverter compressor 101 is turned on, the four-way reversing valve 102 is switched to the second working state, the electronic expansion valve 108 is turned on, the fan of the outdoor heat exchanger 103 is turned on, and the adjustable damper 202 closes the inlet of the first air chamber 204, Fully open the inlet of the second air cavity 205, and the variable frequency fan 203 is turned on;

升温除湿模式：变频压缩机101开启，四通换向阀102切换至第二工作状态，电子膨胀阀108开启，室外换热器103风机开启，可调式风门202同时开启第一风腔204的进口和第二风腔205的进口，变频风机203开启；Heating and dehumidification mode: the inverter compressor 101 is turned on, the four-way reversing valve 102 is switched to the second working state, the electronic expansion valve 108 is turned on, the fan of the outdoor heat exchanger 103 is turned on, and the adjustable damper 202 simultaneously opens the inlet of the first air chamber 204 and the inlet of the second air cavity 205, the variable frequency fan 203 is turned on;

调温除湿模式：变频压缩机101开启，四通换向阀102切换至第一工作状态，电子膨胀阀108开启，室外换热器103风机开启，可调式风门202关闭第一风腔204的进口，变频风机203开启；Temperature adjustment and dehumidification mode: the inverter compressor 101 is turned on, the four-way reversing valve 102 is switched to the first working state, the electronic expansion valve 108 is turned on, the fan of the outdoor heat exchanger 103 is turned on, and the adjustable damper 202 closes the inlet of the first air chamber 204 , the inverter fan 203 is turned on;

除湿模式：变频压缩机101开启，四通换向阀102切换至第二工作状态，电子膨胀阀108开启，室外换热器103风机关闭，可调式风门202关闭第一风腔204的进口，完全开启第二风腔205的进口，变频风机203开启。Dehumidification mode: the inverter compressor 101 is turned on, the four-way reversing valve 102 is switched to the second working state, the electronic expansion valve 108 is turned on, the fan of the outdoor heat exchanger 103 is turned off, and the adjustable damper 202 closes the inlet of the first air chamber 204, completely The inlet of the second air cavity 205 is opened, and the variable frequency fan 203 is turned on.

相应的，基于上述多模式热泵烤烟系统，本发明还提供一种烤烟系统的控制方法；如图2所示，具体步骤如下：Correspondingly, based on the above-mentioned multi-mode heat pump flue-cured tobacco system, the present invention also provides a control method of the flue-cured tobacco system; as shown in Figure 2, the specific steps are as follows:

1)根据烤烟不同过程需求，多模式热泵烤烟系统开启之后，通过控制器305设置烤烟室内空气目标温度t0和目标相对湿度

Figure BDA0002911876540000117
设置目标温度最大向上偏差值Δtu和最大向下偏差值Δtd，Δtu和Δtd的范围为1-10℃，目标相对湿度最大向上偏差值
Figure BDA0002911876540000111
的范围为0-20％；1) According to different process requirements of flue-cured tobacco, after the multi-mode heat pump flue-cured tobacco system is turned on, the controller 305 sets the indoor air target temperature t 0 and target relative humidity of flue-cured tobacco
Figure BDA0002911876540000117
Set the maximum upward deviation value Δt u and the maximum downward deviation value Δt d of the target temperature, the range of Δt u and Δt d is 1-10℃, and the maximum upward deviation value of the target relative humidity
Figure BDA0002911876540000111
The range is 0-20%;

2)根据烤烟不同过程需求，通过控制器305设置不同工作模式下的烤烟室内温升/温降速率上限值dtu和下限值dtd，dtu和dtd的范围为每分钟0.1-5℃，除湿速率上限值

Figure BDA0002911876540000112
和下限值
Figure BDA0002911876540000113
和
Figure BDA0002911876540000114
的范围为每分钟0.1％-5％，同时对系统开启时间进行计时，累计工作时间为τ；2) According to different process requirements of flue-cured tobacco, the upper limit value dt u and the lower limit value dt d of the indoor temperature rise/temperature drop rate of flue-cured tobacco under different working modes are set by the controller 305, and the range of dt u and dt d is 0.1- 5℃, the upper limit of dehumidification rate
Figure BDA0002911876540000112
and lower limit
Figure BDA0002911876540000113
and
Figure BDA0002911876540000114
The range is 0.1%-5% per minute, and the system startup time is timed at the same time, and the cumulative working time is τ;

3)根据烤烟过程中第三传感器303检测烤烟室当前的空气温度t1和相对湿度

Figure BDA0002911876540000115
并传递给控制器305，控制器305进行相关数据对比，系统可选择执行升温模式、升温除湿模式、除湿模式、调温除湿模式，具体为：3) according to the third sensor 303 in the flue-curing process to detect the current air temperature t 1 and relative humidity of the flue-cured room
Figure BDA0002911876540000115
And transmit it to the controller 305, the controller 305 compares the relevant data, the system can choose to execute the heating mode, the heating and dehumidification mode, the dehumidification mode, and the temperature adjustment and dehumidification mode, specifically:

31)若t1-t0＜-Δtd且

Figure BDA0002911876540000116
系统执行升温模式，控制器305计算出烤烟室内的实际温升速率dt，并将实际温升速率dt与目标温升速率上限值dtu、下限值dtd进行对比，根据对比结果调节室外换热器103、电子膨胀阀108、变频风机203和变频压缩机101的工作状态实现系统加热升温；具体为：31) If t 1 -t 0 <-Δt d and
Figure BDA0002911876540000116
The system executes the heating mode, the controller 305 calculates the actual temperature rise rate dt in the flue-cured tobacco room, and compares the actual temperature rise rate dt with the target temperature rise rate upper limit dt u and lower limit dt d , and adjusts the outdoor temperature according to the comparison result. The working state of the heat exchanger 103, the electronic expansion valve 108, the variable frequency fan 203 and the variable frequency compressor 101 realizes the heating of the system; specifically:

31-1)若dt＞dtu，则减小变频压缩机101的转速，同时调整室外换热器103的风机转速、电子膨胀阀108的开度和变频风机203的转速速以适应变频压缩机101转速变化；31-1) If dt>dt u , reduce the rotational speed of the inverter compressor 101, and adjust the fan speed of the outdoor heat exchanger 103, the opening of the electronic expansion valve 108 and the rotational speed of the inverter fan 203 to suit the inverter compressor 101 speed change;

31-2)若dt＜dtd，则增大变频压缩机101转速，同时调整室外换热器103的风机转速、电子膨胀阀108的开度和变频风机203的转速以适应变频压缩机101的转速变化；31-2) If dt<dt d , increase the speed of the variable frequency compressor 101 , and adjust the fan speed of the outdoor heat exchanger 103 , the opening of the electronic expansion valve 108 and the speed of the variable frequency fan 203 to suit the speed of the variable frequency compressor 101 . speed change;

31-3)若dtu≥dt≥dtd，系统工作参数不调整。31-3) If dt u ≥ dt ≥ dt d , the system operating parameters are not adjusted.

32)若t1-t0＜-Δtd且

Figure BDA0002911876540000121
系统执行升温除湿模式，控制器305计算烤烟室内的实际除湿速率
Figure BDA0002911876540000122
并对比实际除湿速率
Figure BDA0002911876540000123
与目标除湿速率上限值
Figure BDA0002911876540000124
下限值
Figure BDA0002911876540000125
根据对比结果调节室外换热器103、电子膨胀阀108、变频风机203和变频压缩机101的工作状态实现系统加热升温和回风除湿；具体为：32) If t 1 -t 0 <-Δt d and
Figure BDA0002911876540000121
The system executes the heating and dehumidification mode, and the controller 305 calculates the actual dehumidification rate in the flue-cured tobacco room
Figure BDA0002911876540000122
And compare the actual dehumidification rate
Figure BDA0002911876540000123
and target dehumidification rate upper limit
Figure BDA0002911876540000124
lower limit
Figure BDA0002911876540000125
According to the comparison results, adjust the working states of the outdoor heat exchanger 103, the electronic expansion valve 108, the variable frequency fan 203 and the variable frequency compressor 101 to achieve system heating and return air dehumidification; specifically:

32-1)若

Figure BDA0002911876540000126
则减小可调式风门202开度；32-1) If
Figure BDA0002911876540000126
Then reduce the opening of the adjustable damper 202;

32-2)若

Figure BDA0002911876540000127
则增大可调式风门202开度；32-2) If
Figure BDA0002911876540000127
Then increase the opening of the adjustable damper 202;

32-3)若

Figure BDA0002911876540000128
则可调式风门202开度不变；32-3) If
Figure BDA0002911876540000128
Then the opening of the adjustable damper 202 remains unchanged;

然后，控制器305根据计算得烤烟室内的实际温升速率dt对比目标温升速率上限值dtu、下限值dtd的结果，对系统进行调控，具体为：Then, the controller 305 controls the system according to the result of comparing the actual temperature rise rate dt in the flue-cured tobacco room with the target temperature rise rate upper limit dt u and lower limit dt d , specifically:

若dt＞dtu，则减小变频压缩机101转速，同时调整室外换热器103风机的风速、电子膨胀阀108开度和变频风机203风速以适应压缩机101转速变化；若dt＜dtd，则增大变频压缩机101转速，同时调整室外换热器103风机的风速、电子膨胀阀108开度和变频风机203风速以适应变频压缩机101转速变化；若dtu≥dt≥dtd，系统工作参数不调整。If dt>dt u , reduce the rotational speed of the variable frequency compressor 101, and adjust the wind speed of the fan of the outdoor heat exchanger 103, the opening of the electronic expansion valve 108 and the wind speed of the variable frequency blower 203 to adapt to the change of the rotational speed of the compressor 101; if dt<dt d , then increase the rotational speed of the variable frequency compressor 101, and adjust the wind speed of the fan of the outdoor heat exchanger 103, the opening of the electronic expansion valve 108 and the wind speed of the variable frequency fan 203 to adapt to the change of the rotational speed of the variable frequency compressor 101; if dt u ≥ dt ≥ dt d , System operating parameters are not adjusted.

33)若-Δtd≤t1-t0≤Δtu且

Figure BDA0002911876540000129
系统执行除湿模式，控制器305根据温度压力传感器304采集的制冷剂压力计算蒸发温度te，并与预设最低蒸发温度ts进行对比，根据结果对可调式风门202、变频压缩机101、室外换热器103、电子膨胀阀108和变频风机203的工作状态进行调节实现回风除湿；具体为：33) If -Δt d ≤t 1 -t 0 ≤Δt u and
Figure BDA0002911876540000129
The system executes the dehumidification mode, the controller 305 calculates the evaporation temperature te according to the refrigerant pressure collected by the temperature and pressure sensor 304 , and compares it with the preset minimum evaporation temperature t s . The working states of the heat exchanger 103, the electronic expansion valve 108 and the variable frequency fan 203 are adjusted to achieve dehumidification of the return air; specifically:

33-1)若te＜ts，则立即减小变频压缩机101转速，同时调整室外换热器103风机风速、电子膨胀阀108开度和变频风机203风速以适应压缩机101转速变化；33-1) If t e < ts , immediately reduce the rotational speed of the variable frequency compressor 101, and adjust the wind speed of the outdoor heat exchanger 103 fan, the opening of the electronic expansion valve 108 and the wind speed of the variable frequency blower 203 to adapt to the change in the rotational speed of the compressor 101;

33-2)若te≥ts，则计算烤烟室内的实际除湿速率

Figure BDA0002911876540000131
对比实际除湿速率
Figure BDA0002911876540000132
与目标除湿速率上限值
Figure BDA0002911876540000133
和下限值
Figure BDA0002911876540000134
具体为：33-2) If t e ≥ t s , calculate the actual dehumidification rate in the flue-cured tobacco room
Figure BDA0002911876540000131
Compare the actual dehumidification rate
Figure BDA0002911876540000132
and target dehumidification rate upper limit
Figure BDA0002911876540000133
and lower limit
Figure BDA0002911876540000134
Specifically:

若

Figure BDA0002911876540000135
则减小可调式风门202开度和变频压缩机101转速，同时调整室外换热器103风机风速、电子膨胀阀108开度和变频风机203风速以适应变频压缩机101转速变化；若
Figure BDA0002911876540000136
则增大可调式风门202开度和变频压缩机101转速，同时调整室外换热器103风机风速、电子膨胀阀108开度和变频风机203风速以适应变频压缩机101转速变化；若
Figure BDA0002911876540000137
则可调式风门202开度和变频压缩机101转速不变。like
Figure BDA0002911876540000135
Then reduce the opening of the adjustable damper 202 and the speed of the variable frequency compressor 101, and adjust the wind speed of the outdoor heat exchanger 103 fan, the opening of the electronic expansion valve 108 and the wind speed of the variable frequency fan 203 to adapt to the speed change of the variable frequency compressor 101; if
Figure BDA0002911876540000136
Then increase the opening of the adjustable damper 202 and the speed of the variable frequency compressor 101, and adjust the fan speed of the outdoor heat exchanger 103, the opening of the electronic expansion valve 108 and the wind speed of the variable frequency fan 203 to adapt to the speed change of the variable frequency compressor 101; if
Figure BDA0002911876540000137
Then, the opening of the adjustable damper 202 and the rotational speed of the inverter compressor 101 remain unchanged.

34)若t1-t0＞-Δtd且

Figure BDA0002911876540000138
由控制器305控制变频压缩机101关机，并关闭室外换热器103风机、电子膨胀阀108和变频风机203；34) If t 1 -t 0 >-Δt d and
Figure BDA0002911876540000138
The inverter compressor 101 is controlled by the controller 305 to shut down, and the fan of the outdoor heat exchanger 103, the electronic expansion valve 108 and the inverter fan 203 are turned off;

35)若t1-t0＞Δtu且

Figure BDA0002911876540000139
系统执行调温除湿模式，由控制器305计算烤烟室内的实际除湿速率
Figure BDA00029118765400001310
并对比实际除湿速率
Figure BDA00029118765400001311
与目标除湿速率上限值
Figure BDA00029118765400001312
下限值
Figure BDA00029118765400001313
根据对比结果调节室外换热器103、电子膨胀阀108、变频风机203和变频压缩机101的工作状态；具体为：35) If t 1 -t 0 >Δt u and
Figure BDA0002911876540000139
The system executes the temperature adjustment and dehumidification mode, and the controller 305 calculates the actual dehumidification rate in the flue-cured tobacco room
Figure BDA00029118765400001310
And compare the actual dehumidification rate
Figure BDA00029118765400001311
and target dehumidification rate upper limit
Figure BDA00029118765400001312
lower limit
Figure BDA00029118765400001313
Adjust the working states of the outdoor heat exchanger 103, the electronic expansion valve 108, the variable frequency fan 203 and the variable frequency compressor 101 according to the comparison results; specifically:

35-1)若

Figure BDA00029118765400001314
则减小变频风机203转速；35-1) If
Figure BDA00029118765400001314
Then reduce the speed of the variable frequency fan 203;

35-2)若

Figure BDA0002911876540000141
则增大变频风机203转速；35-2) If
Figure BDA0002911876540000141
Then increase the speed of the variable frequency fan 203;

35-3)若

Figure BDA0002911876540000142
则不调整；由控制器305计算烤烟室内的实际温升速率dt，对比实际温升速率dt与目标温升速率上限值dtu和下限值dtd，具体为：35-3) If
Figure BDA0002911876540000142
The controller 305 calculates the actual temperature rise rate dt in the flue-cured tobacco room, and compares the actual temperature rise rate dt with the target temperature rise rate upper limit dt u and lower limit dt d , specifically:

若dt＞dtu，则减小变频压缩机101转速，同时调整室外换热器103风机风速、电子膨胀阀108开度和变频风机203风速以适应变频压缩机101转速变化；若dt＜dtd，则增大变频压缩机101转速，同时调整室外换热器103风机风速、电子膨胀阀108开度和变频风机203风速以适应变频压缩机101转速变化；若dtu≥dt≥dtd，系统工作参数不调整。If dt>dt u , reduce the rotational speed of the variable frequency compressor 101, and adjust the wind speed of the fan of the outdoor heat exchanger 103, the opening of the electronic expansion valve 108 and the wind speed of the variable frequency blower 203 to adapt to the change of the rotational speed of the variable frequency compressor 101; if dt<dt d , then increase the speed of the variable frequency compressor 101, and adjust the fan speed of the outdoor heat exchanger 103, the opening of the electronic expansion valve 108 and the wind speed of the variable frequency fan 203 to adapt to the speed change of the variable frequency compressor 101; if dt u ≥ dt ≥ dt d , the system The working parameters are not adjusted.

4)在热泵烤烟系统运行期间，控制器305根据实际累计工作时间τ与系统预设检测时间间隔τs大小进行对比，τs范围为1-10min；若τs＞τ，则系统保持目前工作模式不变；若τs≤τ，则τ清零，系统回到上一状态继续判断并调整工作状态。4) During the operation of the heat pump flue-cured tobacco system, the controller 305 compares the actual accumulated working time τ with the preset detection time interval τ s of the system, and the range of τ s is 1-10 min; if τ s >τ, the system keeps the current operation. The mode remains unchanged; if τ s ≤τ, then τ is cleared, and the system returns to the previous state to continue to judge and adjust the working state.

其中，实际温升速率dt为每个调节周期τs内的温升速率平均值，计算公式如下：Among them, the actual temperature rise rate dt is the average temperature rise rate in each adjustment period τ s , and the calculation formula is as follows:

Figure BDA0002911876540000143
Figure BDA0002911876540000143

公式中q为流过换热风箱201的空气质量流量，单位为m3/s；tio为换热风箱201进出口温度差，单位为℃；Vdry为烤烟室内的空气体积，单位为m3；In the formula, q is the mass flow of air flowing through the heat exchange air box 201, the unit is m 3 /s; t io is the temperature difference between the inlet and outlet of the heat exchange air box 201, the unit is °C; V dry is the air volume in the flue-cured tobacco room, the unit is m 3 ;

实际除湿速率

Figure BDA0002911876540000144
为每个调节周期τs内的除湿速率平均值，通过以下公式进行计算：Actual dehumidification rate
Figure BDA0002911876540000144
The average value of the dehumidification rate in each adjustment period τ s is calculated by the following formula:

Figure BDA0002911876540000151
Figure BDA0002911876540000151

公式中

Figure BDA0002911876540000152
为换热风箱201进出口相对含湿量差值。formula
Figure BDA0002911876540000152
is the relative humidity difference between the inlet and outlet of the heat exchange air box 201 .

本发明换热风箱进口处可调式风门的开度调大操作为第一风腔进口扩大，第二风腔进口缩小；可调式风门的开度调小操作为第二风腔进口扩大，第一风腔进口缩小。In the present invention, the opening of the adjustable damper at the inlet of the heat exchange bellows is enlarged to expand the inlet of the first air cavity, and the inlet of the second air cavity is reduced; The air cavity inlet is reduced.

以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本发明的专利保护范围内。The above descriptions are only embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied to other related technologies Fields are similarly included in the scope of patent protection of the present invention.

Claims (8)

1.一种多模式热泵烤烟系统，包括控制器和与控制器相连的变频压缩机、四通换向阀、室外换热器、设在换热风箱内部的室内换热器、传感器组；所述换热风箱的进口处设有可调式风门，出口处设有变频风机；所述换热风箱内部通过独立分割设有第一风腔和第二风腔，所述第一风腔和第二风腔的进口和出口均连通在一起；所述室内换热器包括分别对应设在第一风腔和第二风腔内的第一室内换热器和第二室内换热器；所述室外换热器的一端和变频压缩机连接在四通换向阀上，室外换热器的另一端连接第一室内换热器和第二室内换热器；所述传感器组包括设在换热风箱出口的第一温湿传感器、换热风箱进口的第二温湿传感器、烤房室内的第三温湿传感器以及设在与变频压缩机的进气口相连管道上的温度压力传感器，传感器组采集的数据信号传递至控制器；控制器根据实际工况对变频压缩机、变频风机、电子膨胀阀和可调风门进行控制；1. A multi-mode heat pump flue-cured tobacco system, comprising a controller, a variable frequency compressor connected to the controller, a four-way reversing valve, an outdoor heat exchanger, an indoor heat exchanger and a sensor group arranged inside the heat exchange air box; The inlet of the heat exchange air box is provided with an adjustable damper, and the outlet is provided with a variable frequency fan; the interior of the heat exchange air box is independently divided with a first air cavity and a second air cavity, and the first air cavity and the second air cavity are independently divided. The inlet and the outlet of the air cavity are connected together; the indoor heat exchanger includes a first indoor heat exchanger and a second indoor heat exchanger respectively arranged in the first air cavity and the second air cavity; the outdoor heat exchanger One end of the heat exchanger and the inverter compressor are connected to the four-way reversing valve, and the other end of the outdoor heat exchanger is connected to the first indoor heat exchanger and the second indoor heat exchanger; the sensor group includes a set of sensors located in the heat exchange air box. The first temperature and humidity sensor at the outlet, the second temperature and humidity sensor at the inlet of the heat exchange air box, the third temperature and humidity sensor in the baking room, and the temperature and pressure sensor installed on the pipeline connected to the air inlet of the inverter compressor. The data signal is transmitted to the controller; the controller controls the inverter compressor, inverter fan, electronic expansion valve and adjustable damper according to the actual working conditions; 所述变频压缩机的出口连接四通换向阀的第一连接口，四通换向阀的第二连接口连接室外换热器的一端，第三连接口连通变频压缩机的进口，第四连接口连接第二室内换热器的一端；所述室外换热器的另一端分别连接第一室内换热器的一端和第一单向阀的进口，第一单向阀的出口分别连接电子膨胀阀一端和第二单向阀的进口，第二单向阀的出口连接在第一室内换热器的另一端上，电子膨胀阀的另一端连接在第二室内换热器的另一端；The outlet of the inverter compressor is connected to the first connection port of the four-way reversing valve, the second connection port of the four-way reversing valve is connected to one end of the outdoor heat exchanger, the third connection port is connected to the inlet of the inverter compressor, and the fourth connection port is connected to the inlet of the inverter compressor. The connection port is connected to one end of the second indoor heat exchanger; the other end of the outdoor heat exchanger is respectively connected to one end of the first indoor heat exchanger and the inlet of the first one-way valve, and the outlet of the first one-way valve is respectively connected to the electronic One end of the expansion valve and the inlet of the second one-way valve, the outlet of the second one-way valve is connected to the other end of the first indoor heat exchanger, and the other end of the electronic expansion valve is connected to the other end of the second indoor heat exchanger; 所述四通换向阀的四个连接口内部导通方式的不同实现第一工作状态和第二工作状态的切换；The different internal conduction modes of the four connection ports of the four-way reversing valve realize the switching between the first working state and the second working state; 所述第一工作状态为：四通换向阀的第一接口与第二接口内部导通，第三接口与第四接口内部导通；The first working state is: the first interface of the four-way reversing valve is internally connected with the second interface, and the third interface and the fourth interface are internally connected; 所述第二工作状态为：四通换向阀的第一接口与第四接口内部导通，第二接口与第三接口内部导通；The second working state is: the first interface of the four-way reversing valve is internally connected to the fourth interface, and the second interface is internally connected to the third interface; 所述控制器的控制实现系统在升温模式、升温除湿模式、除湿模式、调温除湿模式的切换；具体为：The control of the controller realizes the switching of the system in the heating mode, the heating and dehumidification mode, the dehumidification mode, and the temperature adjustment and dehumidification mode; specifically: 执行所述升温模式时，系统的调控具体为：变频压缩机开启，四通换向阀切换至第二工作状态，电子膨胀阀开启，室外换热器风机开启，可调式风门关闭第一风腔的进口，完全开启第二风腔的进口，变频风机开启；When the heating mode is executed, the regulation of the system is as follows: the inverter compressor is turned on, the four-way reversing valve is switched to the second working state, the electronic expansion valve is turned on, the outdoor heat exchanger fan is turned on, and the adjustable damper closes the first air chamber The inlet of the second air chamber is fully opened, and the variable frequency fan is turned on; 执行所述升温除湿模式时，系统的调控具体为：变频压缩机开启，四通换向阀切换至第二工作状态，电子膨胀阀开启，室外换热器风机开启，可调式风门同时开启第一风腔的进口和第二风腔的进口，变频风机开启；When the temperature rising and dehumidification mode is executed, the regulation of the system is as follows: the inverter compressor is turned on, the four-way reversing valve is switched to the second working state, the electronic expansion valve is turned on, the outdoor heat exchanger fan is turned on, and the adjustable damper is simultaneously turned on to the first working state. The inlet of the air cavity and the inlet of the second air cavity, the variable frequency fan is turned on; 执行所述调温除湿模式时，系统的调控具体为：变频压缩机开启，四通换向阀切换至第一工作状态，电子膨胀阀开启，室外换热器风机开启，可调式风门关闭第一风腔的进口，变频风机开启；When the temperature regulation and dehumidification mode is executed, the regulation of the system is as follows: the inverter compressor is turned on, the four-way reversing valve is switched to the first working state, the electronic expansion valve is turned on, the outdoor heat exchanger fan is turned on, and the adjustable damper is closed. At the inlet of the air cavity, the variable frequency fan is turned on; 执行所述除湿模式时，系统的调控具体为：变频压缩机开启，四通换向阀切换至第二工作状态，电子膨胀阀开启，室外换热器风机关闭，可调式风门同时开启第一风腔的进口和第二风腔的进口，变频风机开启。When the dehumidification mode is executed, the regulation of the system is as follows: the inverter compressor is turned on, the four-way reversing valve is switched to the second working state, the electronic expansion valve is turned on, the outdoor heat exchanger fan is turned off, and the adjustable damper simultaneously opens the first air. The inlet of the cavity and the inlet of the second air cavity, the variable frequency fan is turned on. 2.基于权利要求1所述的多模式热泵烤烟系统实现的控制方法，其特征在于：所述控制方法的实现步骤如下：2. the control method realized based on the multi-mode heat pump flue-cured tobacco system according to claim 1, is characterized in that: the realization step of described control method is as follows: 1)根据烤烟不同过程需求，多模式热泵烤烟系统开启之后，通过控制器设置烤烟室内空气的目标温度t0和目标相对湿度
Figure FDA0003503252140000031
设置目标温度最大向上偏差值Δtu和最大向下偏差值为Δtd，Δtu和Δtd的范围为1-10℃；目标相对湿度最大向上偏差值为
Figure FDA0003503252140000032
Figure FDA0003503252140000033
的范围为0-20％；1) According to different process requirements of flue-cured tobacco, after the multi-mode heat pump flue-cured tobacco system is turned on, the target temperature t 0 and target relative humidity of the indoor air of flue-cured tobacco are set by the controller.
Figure FDA0003503252140000031
Set the maximum upward deviation value Δt u and the maximum downward deviation value of the target temperature as Δt d , the range of Δt u and Δt d is 1-10℃; the maximum upward deviation value of the target relative humidity is
Figure FDA0003503252140000032
Figure FDA0003503252140000033
The range is 0-20%; 2)通过控制器设置不同工作模式下的烤烟室内温升或温降速率上限值dtu和下限值dtd，dtu和dtd的范围为每分钟0.1-5℃，以及除湿速率上限值
Figure FDA0003503252140000034
和下限值
Figure FDA0003503252140000035
和
Figure FDA0003503252140000036
的范围为每分钟0.1％-5％；同时对系统开启时间进行计时，累计工作时间为τ；2) Set the upper limit dt u and lower limit dt d of the indoor temperature rise or temperature drop rate of flue-cured tobacco under different working modes through the controller. The range of dt u and dt d is 0.1-5℃ per minute, and the dehumidification rate Limit
Figure FDA0003503252140000034
and lower limit
Figure FDA0003503252140000035
and
Figure FDA0003503252140000036
The range is 0.1%-5% per minute; at the same time, the system startup time is timed, and the cumulative working time is τ; 3)机组工作过程中第三传感器实时检测烤烟室内当前的空气温度t1和相对湿度
Figure FDA0003503252140000037
并传递给控制器，控制器通过判断烤烟室内当前空气温度与目标温度的差值以及当前空气湿度与目标湿度的差值，选择对应的系统工作模式；3) During the working process of the unit, the third sensor detects the current air temperature t 1 and relative humidity in the flue-cured tobacco room in real time
Figure FDA0003503252140000037
And transmit it to the controller, the controller selects the corresponding system working mode by judging the difference between the current air temperature and the target temperature in the flue-cured tobacco room and the difference between the current air humidity and the target humidity; 4)热泵烤烟系统运行期间，对比累计工作时间τ与系统预设检测时间间隔τs大小，τs范围为1-10min；若τs>τ，则系统保持目前工作模式不变；若τs≤τ，则τ清零，系统回到步骤3)继续判断并调整工作状态。4) During the operation of the heat pump flue-cured tobacco system, compare the accumulated working time τ with the preset detection time interval τ s of the system, the range of τ s is 1-10min; if τ s >τ, the system keeps the current working mode unchanged; if τ s ≤τ, then τ is cleared to zero, and the system returns to step 3) to continue judging and adjusting the working state. 3.根据权利要求2所述的控制方法，其特征在于：步骤3)中根据控制器的判断结果，系统选择执行对应的升温模式、升温除湿模式、除湿模式或者调温除湿模式，具体为：3. control method according to claim 2 is characterized in that: in step 3), according to the judgment result of the controller, the system selects and executes the corresponding heating mode, heating and dehumidification mode, dehumidification mode or temperature adjustment and dehumidification mode, specifically: 31)若t1-t0＜-Δtd且
Figure FDA0003503252140000038
系统执行升温模式，控制器计算烤烟室内的实际温升速率dt，并将实际温升速率dt与目标温升速率上限值dtu、下限值dtd进行对比，根据对比结果进行系统调控；31) If t 1 -t 0 <-Δt d and
Figure FDA0003503252140000038
The system executes the heating mode, the controller calculates the actual temperature rise rate dt in the flue-cured tobacco room, and compares the actual temperature rise rate dt with the target temperature rise rate upper limit dt u and lower limit dt d , and performs system regulation according to the comparison result; 32)若t1-t0＜-Δtd且
Figure FDA0003503252140000041
系统执行升温除湿模式，控制器计算烤烟室内的实际除湿速率
Figure FDA0003503252140000042
并对比实际除湿速率
Figure FDA0003503252140000043
与目标除湿速率上限值
Figure FDA0003503252140000044
下限值
Figure FDA0003503252140000045
计算烤烟室内的实际温升速率dt，并对比实际温升速率dt与目标温升速率上限值dtu、下限值dtd，根据对比结果进行系统调控；32) If t 1 -t 0 <-Δt d and
Figure FDA0003503252140000041
The system executes the heating and dehumidification mode, and the controller calculates the actual dehumidification rate in the flue-cured tobacco room
Figure FDA0003503252140000042
And compare the actual dehumidification rate
Figure FDA0003503252140000043
and target dehumidification rate upper limit
Figure FDA0003503252140000044
lower limit
Figure FDA0003503252140000045
Calculate the actual temperature rise rate dt in the flue-cured tobacco room, and compare the actual temperature rise rate dt with the target temperature rise rate upper limit dt u and lower limit dt d , and perform system control according to the comparison results; 33)若-Δtd≤t1-t0≤Δtu且
Figure FDA0003503252140000046
系统执行除湿模式，控制器根据温度压力传感器采集的制冷剂压力计算蒸发温度te，对比蒸发温度te与预设最低蒸发温度ts，计算烤烟室内的实际除湿速率
Figure FDA0003503252140000047
并对比实际除湿速率
Figure FDA0003503252140000048
与目标除湿速率上限值
Figure FDA0003503252140000049
下限值
Figure FDA00035032521400000410
根据对比结果进行系统调控；33) If -Δt d ≤t 1 -t 0 ≤Δt u and
Figure FDA0003503252140000046
The system executes the dehumidification mode, the controller calculates the evaporation temperature te according to the refrigerant pressure collected by the temperature and pressure sensor, compares the evaporation temperature te with the preset minimum evaporation temperature ts , and calculates the actual dehumidification rate in the flue-cured tobacco room
Figure FDA0003503252140000047
And compare the actual dehumidification rate
Figure FDA0003503252140000048
and target dehumidification rate upper limit
Figure FDA0003503252140000049
lower limit
Figure FDA00035032521400000410
Carry out system control according to the comparison results; 34)若t1-t0＞-Δtd且
Figure FDA00035032521400000411
由控制器控制变频压缩机关机，并关闭室外换热器风机、电子膨胀阀和变频风机；34) If t 1 -t 0 >-Δt d and
Figure FDA00035032521400000411
The controller controls the inverter compressor to shut down, and closes the outdoor heat exchanger fan, electronic expansion valve and inverter fan; 35)若t1-t0＞Δtu且
Figure FDA00035032521400000412
系统执行调温除湿模式，由控制器计算烤烟室内的实际除湿速率
Figure FDA00035032521400000413
并对比实际除湿速率
Figure FDA00035032521400000414
与目标除湿速率上限值
Figure FDA00035032521400000415
下限值
Figure FDA00035032521400000416
计算烤烟室内的实际温降速率dt，并对比实际温降速率dt与目标温降速率上限值dtu、下限值dtd，根据对比结果进行系统调控。35) If t 1 -t 0 >Δt u and
Figure FDA00035032521400000412
The system executes the temperature adjustment and dehumidification mode, and the controller calculates the actual dehumidification rate in the flue-cured tobacco room
Figure FDA00035032521400000413
And compare the actual dehumidification rate
Figure FDA00035032521400000414
and target dehumidification rate upper limit
Figure FDA00035032521400000415
lower limit
Figure FDA00035032521400000416
Calculate the actual temperature drop rate dt in the flue-cured tobacco room, and compare the actual temperature drop rate dt with the target temperature drop rate upper limit dt u , lower limit dt d , and perform system control according to the comparison results. 4.根据权利要求3所述的控制方法，其特征在于：所述实际温升或温降速率dt为每个调节周期τs内的温升或者温降速率平均值，计算公式如下：4. control method according to claim 3 is characterized in that: described actual temperature rise or temperature drop rate dt is the temperature rise or temperature drop rate average value in each adjustment period τ s , and the calculation formula is as follows:
Figure FDA0003503252140000051
Figure FDA0003503252140000051
 其中，q为流过换热风箱的空气质量流量，单位为m3/s；tio为换热风箱进出口温度差，单位为℃；Vdry为烤烟室内的空气体积，单位为m3；Among them, q is the air mass flow through the heat exchange air box, the unit is m 3 /s; t io is the temperature difference between the inlet and outlet of the heat exchange air box, the unit is °C; V dry is the air volume in the flue-cured tobacco room, the unit is m 3 ; 所述实际除湿速率
Figure FDA0003503252140000052
为每个调节周期τs内的除湿速率平均值，通过以下公式进行计算：The actual dehumidification rate
Figure FDA0003503252140000052
The average value of the dehumidification rate in each adjustment period τ s is calculated by the following formula:
Figure FDA0003503252140000053
Figure FDA0003503252140000053
 其中
Figure FDA0003503252140000054
为换热风箱进出口相对含湿量差值。in
Figure FDA0003503252140000054
It is the relative humidity difference between the inlet and outlet of the heat exchange air box. 5.根据权利要求3所述的控制方法，其特征在于：步骤31)中根据实际温升速率dt对比目标温升速率上限值dtu、下限值dtd的结果，控制器对系统的调控具体为：5. control method according to claim 3 is characterized in that: in step 31), according to actual temperature rise rate dt contrast target temperature rise rate upper limit value dt u , the result of lower limit value dt d , controller to system's result. The control is specifically: 若dt＞dtu，则减小变频压缩机的转速，同时调整室外换热器的风机转速、电子膨胀阀的开度和变频风机的转速以适应变频压缩机转速变化；If dt>dt u , reduce the speed of the variable frequency compressor, and adjust the fan speed of the outdoor heat exchanger, the opening of the electronic expansion valve and the speed of the variable frequency fan to adapt to the speed change of the variable frequency compressor; 若dt＜dtd，则增大变频压缩机转速，同时调整室外换热器的风机转速、电子膨胀阀的开度和变频风机的转速以适应变频压缩机的转速变化；If dt < dt d , increase the speed of the inverter compressor, and adjust the fan speed of the outdoor heat exchanger, the opening of the electronic expansion valve and the speed of the inverter fan to adapt to the speed change of the inverter compressor; 若dtu≥dt≥dtd，系统工作参数不调整。If dt u ≥ dt ≥ dt d , the system operating parameters are not adjusted. 6.根据权利要求3所述的控制方法，其特征在于：步骤32)中根据实际除湿速率
Figure FDA0003503252140000055
对比目标除湿速率上限值
Figure FDA0003503252140000056
下限值
Figure FDA0003503252140000057
的结果，控制器对系统的调控具体为：6. control method according to claim 3 is characterized in that: according to actual dehumidification rate in step 32)
Figure FDA0003503252140000055
Compare the upper limit of the target dehumidification rate
Figure FDA0003503252140000056
lower limit
Figure FDA0003503252140000057
As a result, the controller's regulation of the system is as follows: 若
Figure FDA0003503252140000061
则减小可调式风门开度；若
Figure FDA0003503252140000062
则增大可调式风门开度；like
Figure FDA0003503252140000061
Then reduce the adjustable damper opening; if
Figure FDA0003503252140000062
Then increase the adjustable damper opening; 若
Figure FDA0003503252140000063
则可调式风门开度不变；然后，控制器根据实际温升速率dt对比目标温升速率上限值dtu、下限值dtd的结果，控制器对系统进行调控，具体为：like
Figure FDA0003503252140000063
Then, the opening of the adjustable damper remains unchanged; then, the controller controls the system according to the result of comparing the actual temperature rise rate dt with the upper limit dt u and the lower limit dt d of the target temperature rise rate, specifically: 若dt＞dtu，则减小变频压缩机转速，同时调整室外换热器风机的风速、电子膨胀阀开度和变频风机风速以适应压缩机转速变化；若dt＜dtd，则增大变频压缩机转速，同时调整室外换热器风机的风速、电子膨胀阀开度和变频风机风速以适应变频压缩机转速变化；若dtu≥dt≥dtd，系统工作参数不调整。If dt > dt u , reduce the speed of the variable frequency compressor, and adjust the wind speed of the outdoor heat exchanger fan, the opening of the electronic expansion valve and the wind speed of the variable frequency fan to adapt to the change of the compressor speed; if dt < dt d , increase the variable frequency Compressor speed, adjust the wind speed of outdoor heat exchanger fan, electronic expansion valve opening and variable frequency fan wind speed to adapt to the speed change of variable frequency compressor; if dt u ≥ dt ≥ dt d , the system operating parameters will not be adjusted. 7.根据权利要求3所述的控制方法，其特征在于：步骤33)中根据计算蒸发温度te与预设最低蒸发温度ts的比对结果，控制器对系统的调控具体为：7. control method according to claim 3 is characterized in that: in step 33), according to the comparison result of calculating evaporation temperature t e and preset minimum evaporation temperature t s , the regulation and control of controller to system is specifically: 若te＜ts，则立即减小变频压缩机转速，同时调整室外换热器风机风速、电子膨胀阀开度和风机风速以适应压缩机转速变化；If t e < ts , reduce the speed of the inverter compressor immediately, and adjust the fan speed of the outdoor heat exchanger, the opening of the electronic expansion valve and the fan speed to adapt to the change of the compressor speed; 若te≥ts，则不调整；然后，控制器根据实际除湿速率
Figure FDA0003503252140000064
对比目标除湿速率上限值
Figure FDA0003503252140000065
下限值
Figure FDA0003503252140000066
的结果，控制器对系统进行调控，具体为：If t e ≥ t s , do not adjust; then, the controller according to the actual dehumidification rate
Figure FDA0003503252140000064
Compare the upper limit of the target dehumidification rate
Figure FDA0003503252140000065
lower limit
Figure FDA0003503252140000066
As a result, the controller regulates the system, specifically: 若
Figure FDA0003503252140000067
则减小可调式风门开度和变频压缩机转速，同时调整室外换热器风机风速、电子膨胀阀开度和变频风机风速以适应变频压缩机转速变化；若
Figure FDA0003503252140000068
则增大可调式风门开度和变频压缩机转速，同时调整室外换热器风机风速、电子膨胀阀开度和变频风机风速以适应变频压缩机转速变化；若
Figure FDA0003503252140000071
则可调式风门开度和变频压缩机转速不变。like
Figure FDA0003503252140000067
Then reduce the opening of the adjustable damper and the speed of the variable frequency compressor, and adjust the fan speed of the outdoor heat exchanger, the opening of the electronic expansion valve and the wind speed of the variable frequency fan to adapt to the speed change of the variable frequency compressor;
Figure FDA0003503252140000068
Then increase the opening of the adjustable damper and the speed of the variable frequency compressor, and adjust the wind speed of the outdoor heat exchanger fan, the opening of the electronic expansion valve and the wind speed of the variable frequency fan to adapt to the speed change of the variable frequency compressor;
Figure FDA0003503252140000071
Then the adjustable damper opening and the inverter compressor speed remain unchanged. 8.根据权利要求3所述的控制方法，其特征在于：步骤35)中根据实际除湿速率
Figure FDA0003503252140000072
对比目标除湿速率上限值
Figure FDA0003503252140000073
下限值
Figure FDA0003503252140000074
的结果，控制器对系统的调控具体为：8. control method according to claim 3 is characterized in that: in step 35), according to actual dehumidification rate
Figure FDA0003503252140000072
Compare the upper limit of the target dehumidification rate
Figure FDA0003503252140000073
lower limit
Figure FDA0003503252140000074
As a result, the controller's regulation of the system is as follows: 若
Figure FDA0003503252140000075
则减小变频风机转速；若
Figure FDA0003503252140000076
则增大变频风机转速；like
Figure FDA0003503252140000075
Then reduce the frequency conversion fan speed; if
Figure FDA0003503252140000076
Then increase the frequency conversion fan speed; 若
Figure FDA0003503252140000077
则不调整；然后，控制器根据实际温升速率dt对比目标温升速率上限值dtu、下限值dtd的结果，控制器对系统进行调控，具体为：like
Figure FDA0003503252140000077
Then, the controller controls the system according to the result of comparing the actual temperature rise rate dt with the upper limit value dt u and the lower limit value dt d of the target temperature rise rate, specifically: 若dt＞dtu，则减小变频压缩机转速，同时调整室外换热器风机风速、电子膨胀阀开度和变频风机风速以适应变频压缩机转速变化；若dt＜dtd，则增大变频压缩机转速，同时调整室外换热器风机风速、电子膨胀阀开度和变频风机风速以适应变频压缩机转速变化；若dtu≥dt≥dtd，系统工作参数不调整。If dt>dt u , reduce the speed of the variable frequency compressor, and adjust the fan speed of the outdoor heat exchanger, the opening of the electronic expansion valve and the wind speed of the variable frequency fan to adapt to the speed change of the variable frequency compressor; if dt < dt d , increase the variable frequency The speed of the compressor is adjusted, and the wind speed of the outdoor heat exchanger fan, the opening of the electronic expansion valve and the wind speed of the variable frequency fan are adjusted to adapt to the speed change of the variable frequency compressor;
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