WO2020151113A1 - 一种间接蒸发冷室外风机控制方法及控制装置 - Google Patents

一种间接蒸发冷室外风机控制方法及控制装置 Download PDF

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Publication number
WO2020151113A1
WO2020151113A1 PCT/CN2019/083734 CN2019083734W WO2020151113A1 WO 2020151113 A1 WO2020151113 A1 WO 2020151113A1 CN 2019083734 W CN2019083734 W CN 2019083734W WO 2020151113 A1 WO2020151113 A1 WO 2020151113A1
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Prior art keywords
speed
outdoor fan
temperature
outdoor
compressor
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PCT/CN2019/083734
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English (en)
French (fr)
Inventor
张宏宇
王大伟
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深圳市艾特网能技术有限公司
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Publication of WO2020151113A1 publication Critical patent/WO2020151113A1/zh

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Classifications

    • 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
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24F11/86—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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to the technical field of refrigeration, and more specifically, to a control method and a control device for an outdoor fan of an indirect evaporative cooling.
  • the adjustment of the outdoor fan speed will directly affect the overall energy consumption of the unit.
  • the traditional solution is generally to adjust the outdoor fan speed through a single method, which will result in: a single control method, which cannot provide accuracy for multiple applications If there is a problem with the control method, especially in the parameter acquisition of the control method, there is no way to continue to control the operation of the outdoor fan. Cause the entire system to not work, and bring serious consequences.
  • the technical problem to be solved by the present invention is to provide an indirect evaporative cooling outdoor fan control method and control device in view of the above-mentioned prior art defects of the prior art.
  • the technical solution adopted by the present invention to solve its technical problem is: constructing an indirect evaporative cooling outdoor fan control method, including the following steps:
  • step S2 Obtain the supply air temperature of the indoor fan corresponding to the outdoor fan, and confirm whether the supply air temperature meets the set value; if yes, perform step S3, if not, perform step S4;
  • the setting the starting speed of the outdoor fan according to the outdoor temperature includes:
  • the outdoor fan is at the first starting speed
  • the outdoor fan is at the second starting speed
  • the outdoor fan is at the third starting speed.
  • the setting the starting speed of the outdoor fan according to the outdoor temperature includes:
  • the first start speed N min is the minimum speed, the third speed to the starting amount of the rated speed N, the second start speed and the minimum rotational speed N min and the rated speed N linear scale relationship.
  • the second start speed and the minimum speed N min and the rated speed N Amount linear relationship comprising: starting the second speed satisfies the following formula:
  • N [( N amount- N min )/( T 2 -T 1 )]•(T- T 1 )+ N min
  • N is the second starting speed
  • T is the current outdoor temperature
  • T 1 is the maximum value of the first temperature range
  • T 2 is the minimum value of the third temperature range.
  • the first interval range is less than -10°C
  • the second interval range is -10°C to 15°C
  • the third interval range is greater than 15°C.
  • the obtaining the corresponding operating speed according to the condensation pressure of the compressor includes:
  • the outdoor fan When the condensing pressure is within the first pressure interval, the outdoor fan is at the first operating speed
  • the outdoor fan When the condensing pressure is within the second pressure range, the outdoor fan is at the second operating speed
  • the outdoor fan is at the third operating speed.
  • the obtaining the corresponding working speed according to the condensation pressure of the compressor further includes:
  • said second working speed and amount of the rated speed N and the maximum rotational speed N max linear relationship comprises: said second working speed satisfies the following formula:
  • N [( N max -N amount )/( P 2 -P 1 )]•(PP 1 )+ N amount
  • N is the second working speed
  • P is the current condensing pressure
  • P 1 is the maximum value of the first pressure interval range
  • P 2 is the minimum value of the third pressure interval range.
  • the present invention also constructs an indirect evaporative cooling outdoor fan adjusting device, including:
  • the first temperature obtaining module is configured to obtain the outdoor temperature corresponding to the outdoor fan
  • a control module configured to set the starting speed of the outdoor fan according to the outdoor temperature
  • the second temperature obtaining module is configured to obtain the air supply temperature of the indoor fan corresponding to the outdoor fan;
  • the judgment module is used to confirm whether the supply air temperature meets the set value
  • the control module is further configured to set the operating speed of the outdoor fan when the judgment result of the judgment module is affirmative;
  • the control module is further configured to turn on the compressor corresponding to the outdoor fan when the judgment result of the judgment module is negative;
  • a condensing pressure obtaining module configured to obtain the condensing pressure of the compressor when the compressor is turned on
  • the control module is also used to obtain the corresponding operating speed according to the condensing pressure of the compressor.
  • the indirect evaporative cooling outdoor fan adjusting device further includes a first storage module
  • the first storage module is configured to store the temperature interval range of the outdoor temperature and the startup speed corresponding to the temperature interval range;
  • the indirect evaporative cooling outdoor fan adjusting device further includes a second storage module
  • the second storage module is used to store the condensing pressure interval range of the compressor and the working speed corresponding to the pressure interval range.
  • An indirect evaporative cooling outdoor fan control method and device implementing the present invention has the following beneficial effects: meeting the speed control of a variety of outdoor fan usage conditions, and increasing the flexibility and diversity of the outdoor fan speed control.
  • Figure 1 is a program flowchart of an indirect evaporative cooling outdoor fan control method of the present invention
  • FIG. 2 is a schematic diagram of functional modules of the first embodiment of an indirect evaporative cooling outdoor fan control device of the present invention
  • Fig. 3 is a schematic diagram of functional modules of a first embodiment of an indirect evaporative cooling outdoor fan control device of the present invention.
  • the starting speed of the outdoor fan is an initial speed, and the size of the starting speed is mainly determined by the outdoor temperature. It can also be understood that the starting speed is the first speed of the outdoor fan, and the approximate running time is 60 seconds.
  • the start speed of the outdoor fan is determined according to the outdoor ambient temperature, which can prevent the start speed of the outdoor fan from being too high or too low, so that the outdoor fan can reach a stable operating state as soon as possible.
  • the outdoor fan starts to run at the starting speed, continuously detect the air supply temperature of the indoor fan. If the indoor air supply temperature reaches the preset temperature value, the subsequent speed of the outdoor fan will run according to the starting speed, which is about to start speed.
  • the working speed of the outdoor fan As the working speed of the outdoor fan, it controls the outdoor fan to work. If the indoor air supply temperature does not meet the requirements, that is, it does not reach the preset temperature value, the compressor corresponding to the outdoor fan is controlled to start working. At this time, the corresponding operating speed can be obtained according to the condensing pressure of the compressor, and Control the outdoor fan to work at this working speed. It can be understood that if the outdoor air temperature is low and the compressor does not need to be turned on, the mode of only performing heat exchange between outdoor air and indoor air can meet the temperature setting requirements. If the outdoor air temperature is high and the indoor air has a cooling demand, when the conditions for turning on the compressor are reached, the mixed heat exchange mode of outdoor air and indoor air as well as indoor air and evaporator is adopted. The working speed of the outdoor fan at this time is adjusted according to the size of the condensing pressure.
  • setting the start-up speed of the outdoor fan according to the outdoor temperature includes: when the outdoor temperature is in the first temperature range, the outdoor fan is at the first start-up speed; the outdoor temperature is in the second temperature range When it is in the range, the outdoor fan is the second starting speed; when the outdoor temperature is within the third temperature range, the outdoor fan is the third starting speed.
  • the outdoor temperature can be set between zones according to actual conditions, and different starting speeds can be set according to different interval ranges.
  • the first temperature interval range is less than -10°C
  • the second temperature interval range is -10°C to 15°C
  • the third temperature interval range is greater than 15°C.
  • the outdoor fan is used to start the work at the first starting speed.
  • the outdoor temperature is provided according to the start speed of the outdoor fan comprises: acquiring outdoor fan rated speed N and the amount of the minimum rotational speed N min; first starting speed N min is the minimum speed, the first three start speed is the rated speed N amount, a second rotation speed and the minimum starting speed N min and the rated speed N amount is linear.
  • the minimum speed of the outdoor fan N min to 25% of the fan maximum speed to 35%; the amount of the rated speed N may be set at 80% to 90% of the maximum speed of the fan.
  • the first starting speed of the outdoor fan is the minimum speed N min of the outdoor fan.
  • the third starting speed of the outdoor fan is the outdoor fan the amount of the rated speed N, when the outdoor temperature at the time of the second temperature interval range, the amount of the rotational speed N and the minimum rotational speed N min rated linear regulator, a second start speed.
  • the second starting speed of the outdoor fan at this time can be controlled according to various control methods, such as outdoor temperature, indoor supply air temperature, indoor return air temperature, indoor return air temperature difference, return air pressure difference, remote temperature, etc. size do to the minimum rotational speed N min is linearly proportional to the amount of adjustment of the rated speed N. This can greatly reduce the energy consumption of system components, save energy, reduce the use times of other components, increase the service life of other components, and make full use of the advantages of controlling the speed of the outdoor fan through a variety of control methods.
  • N [( N amount- N min )/( T 2 -T 1 )]•(T- T 1 )+ N min
  • N is the second starting speed
  • T is the current outdoor temperature
  • T 1 is the maximum value of the first temperature range
  • T 2 is the minimum value of the third temperature range.
  • the second starting speed can be obtained according to the minimum speed N min and the rated speed N amount , and the current outdoor temperature.
  • N min and the rated speed N amount may be provided a second linear speed and the minimum starting speed N min and the rated speed N according to the amount of other parameters.
  • step S4 obtaining the corresponding operating speed according to the condensation pressure of the compressor includes:
  • the outdoor fan is the first working speed
  • the outdoor fan When the condensing pressure is within the second pressure range, the outdoor fan is at the second operating speed
  • the outdoor fan is at the third operating speed.
  • the condensing pressure of the compressor can be set between zones according to actual conditions, and different working speeds can be set according to different intervals. It can be understood that the higher the condensing pressure, the lower the refrigeration efficiency of the compressor refrigeration system. Therefore, the higher the condensing pressure, a larger outdoor fan must be provided. The purpose of this is to increase the outdoor fan's air volume. Air volume to reduce condensation pressure.
  • step S4 obtaining the corresponding working speed according to the condensing pressure of the compressor further includes: obtaining the rated speed N of the outdoor fan and the maximum speed N max of the outdoor fan; the first working speed is the amount of the rated speed N, the third operating speed N max is the maximum speed, and a second operating speed and the amount of the maximum rated speed N N max speed is linear.
  • the rated speed N amount of the outdoor fan to fan the maximum rotational speed N max 80 % To 90%.
  • the first working speed corresponding to the outdoor fan is the rated speed N of the outdoor fan.
  • the first operating speed corresponding to the outdoor fan is three operating speed of the outdoor fan rotational speed N max the maximum, when the condensing pressure of the compressor at a second pressure zone range may be adjusted according to a linear scale rated speed N max and the maximum rotational speed N, a second operating speed.
  • the second operating speed of the outdoor fan can be done according to the size of the amount of rated speed N condensing pressure of the compressor to adjust the ratio of the maximum rotational speed N max, which adjustment may be provided in the outdoor fan when the compressor is turned on a large
  • the cooling capacity provided by the compressor can be fully utilized.
  • the working speed of the outdoor fan can be adjusted to appropriately reduce the pressure of the condenser and improve the refrigeration. Efficiency, reduce the power consumption of the compressor.
  • the second operating speed and the rated speed N and a maximum rotational speed N max amount of linear relationship comprising: a second working speed satisfies the following formula:
  • N [( N max -N amount )/( P 2 -P 1 )]•(PP 1 )+ N amount
  • N is the second working speed
  • P is the current condensing pressure
  • P 1 is the maximum value of the first pressure interval range
  • P 2 is the minimum value of the third pressure interval range.
  • the condensing pressure value is generally measured by arranging a pressure sensor on the compressor discharge pipe to measure the condensing pressure of the compressor refrigeration system; this pressure value is generally in the range of 0 to 40 bar.
  • the present invention also constructs an indirect evaporative cooling outdoor fan adjusting device.
  • FIG. 2 is a schematic diagram of functional modules of the first embodiment of an indirect evaporative cooling outdoor fan adjusting device of the present invention.
  • an indirect evaporative cooling outdoor fan 40 adjusting device of the present invention includes:
  • the first temperature obtaining module 21 is configured to obtain the outdoor temperature corresponding to the outdoor fan 40;
  • the control module 10 is used to set the starting speed of the outdoor fan 40 according to the outdoor temperature
  • the second temperature obtaining module is used to obtain the air supply temperature of the indoor fan corresponding to the outdoor fan 40;
  • the judgment module 30 is used to confirm whether the supply air temperature meets the set value
  • the control module 10 is also used to set the working speed of the outdoor fan 40 when the judgment result of the judgment module 30 is affirmative;
  • the control module 10 is also used to turn on the compressor 50 corresponding to the outdoor fan 40 when the judgment result of the judgment module 30 is negative;
  • the condensing pressure obtaining module 51 is configured to obtain the condensing pressure of the compressor 50 when the compressor 50 is turned on;
  • the control module 10 is also used to obtain the corresponding operating speed according to the condensation pressure of the compressor 51.
  • the starting speed of the outdoor fan 40 is an initial speed, and the size of the starting speed is mainly determined by the outdoor temperature. It can also be understood that the starting speed is the first speed at which the outdoor fan 40 runs, and the approximate running time is 60 seconds.
  • the outdoor temperature corresponding to the outdoor fan 40 may be acquired through the first temperature acquiring module 21, and the starting speed of the outdoor fan 40 may be set by the control module 10 according to the outdoor temperature.
  • the second temperature acquisition module 22 continuously detects the supply air temperature of the indoor fan, and the judgment module 30 judges the supply air temperature.
  • the control module 10 controls the subsequent speed of the outdoor fan 40 to run according to the start speed, that is, the start speed is used as the working speed of the outdoor fan 40 to control the outdoor fan 40 to work. If the indoor air supply temperature does not meet the requirements, that is, it does not reach the preset temperature value, the control module 10 controls the compressor 50 corresponding to the outdoor fan 40 to start working, and obtains the compressor 50 to turn on through the condensing pressure acquisition module 51 At this time, the condensing pressure of the compressor 50; the control module 10 can obtain the corresponding operating speed according to the acquired condensing pressure of the compressor 50 at this time, and control the outdoor fan 40 to work at the operating speed. It can be understood here that the condensing pressure acquisition module 51 may be a pressure sensor arranged on the compressor discharge pipe.
  • FIG. 3 is a schematic diagram of functional modules of a second embodiment of an indirect evaporative cooling outdoor fan 40 adjusting device of the present invention.
  • the indirect evaporative cooling outdoor fan 40 adjusting device further includes a first storage module 61; the first storage module 61 is used to store the temperature interval range of the outdoor temperature and the startup corresponding to the temperature interval range Rotation speed; specifically, the temperature range of the outdoor temperature and the start-up speed corresponding to the temperature range can be stored through the first storage module 61.
  • the outdoor temperature can be divided into multiple temperature ranges, for example, the outdoor temperature is at the first temperature When the range is in the range, the outdoor fan 40 is the first starting speed; when the outdoor temperature is in the second temperature range, the outdoor fan 40 is the second starting speed; when the outdoor temperature is in the third temperature range, the outdoor fan 40 is the third starting speed .
  • the first temperature interval range is less than -10°C
  • the second temperature interval range is -10°C to 15°C
  • the third temperature interval range is greater than 15°C.
  • a first memory module 61 may be stored as a first starting speed N min is the minimum speed
  • the third speed is the rated speed N starts amount
  • starting a second linear speed and the minimum speed N min and the rated speed of the amount of N Where the linear relationship can also be specified in the formula, and the second starting speed satisfies the following formula:
  • N [( N amount- N min )/( T 2 -T 1 )]•(T- T 1 )+ N min
  • N is the second starting speed
  • T is the current outdoor temperature
  • T 1 is the maximum value of the first temperature range
  • T 2 is the minimum value of the third temperature range.
  • the indirect evaporative cold outdoor fan 40 adjusting device further includes a second storage module 62; the second storage module 62 is used to store the condensing pressure range range of the compressor 50 and the range corresponding to the pressure range The working speed. Specifically, the condensing pressure range range of the compressor 50 and the operating speed corresponding to the pressure range range can be stored by the second storage module 62.
  • the condensing pressure of the compressor 50 can be divided into multiple pressure range ranges, such as when the condensing pressure of the compressor 50 is within the first pressure range, the outdoor fan 40 is at the first operating speed; when the condensing pressure of the compressor 50 is within the second pressure range, the outdoor fan 40 is at the second operating speed; When the condensing pressure of 50 is within the third pressure range, the outdoor fan 40 is at the third operating speed.
  • the second storage module 62 can store the first working speed as the rated speed N of the outdoor fan 40, and the third working speed as the maximum speed N max of the outdoor fan 40.
  • the second working speed is the sum of the rated speed N
  • the linear relationship of the maximum speed N max where the linear relationship can be a specific company, and the second working speed satisfies the following formula:
  • N [( N max -N amount )/( P 2 -P 1 )]•(PP 1 )+ N amount
  • N is the second working speed
  • P is the current condensing pressure
  • P 1 is the maximum value of the first pressure interval range
  • P 2 is the minimum value of the third pressure interval range.

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Abstract

本发明涉及一种间接蒸发冷室外风机控制方法及控制装置，本发明的一种间接蒸发冷室外风机控制方法包括：S1、获取室外风机对应的室外温度，根据室外温度设置室外风机的启动转速；S2、获取与室外风机对应的室内风机的送风温度，确认送风温度是否满足设定值；若是执行步骤S3，若否执行步骤S4；S3、设置室外风机的工作转速为启动转速并结束；S4、开启与室外风机对应的压缩机，并根据压缩机的冷凝压力获取对应的工作转速。实施本发明能够满足多种室外风机使用情况下的转速控制，增加了室外风机的转速控制的灵活性和多样性。

Description

一种间接蒸发冷室外风机控制方法及控制装置 技术领域
本发明涉及制冷技术领域，更具体地说，涉及一种间接蒸发冷室外风机控制方法及控制装置。
 背景技术
对于间接蒸发冷机组，室外风机转速的调节会直接影响机组整体的能耗，传统方案一般是通过单一方式来调节室外风机的转速，这样会造成：控制方式单一，不能为多种应用场合提供准确的控制方式，尤其是在控制方式的参数获取出现了问题，那么就没有办法继续控制室外风机的运行。导致整个系统不工作，带来严重后果。
 技术问题
本发明要解决的技术问题在于，针对现有技术的上述现有技术缺陷，提供一种间接蒸发冷室外风机控制方法及控制装置。
 技术解决方案
本发明解决其技术问题所采用的技术方案是：构造一种间接蒸发冷室外风机控制方法，包括以下步骤：
S1、获取室外风机对应的室外温度，根据所述室外温度设置所述室外风机的启动转速；
S2、获取与所述室外风机对应的室内风机的送风温度，确认所述送风温度是否满足设定值；若是，则执行步骤S3，若否，则执行步骤S4；
S3、设置所述室外风机的工作转速为所述启动转速并结束；
S4、开启与所述室外风机对应的压缩机，并根据所述压缩机的冷凝压力获取对应的工作转速。
优选地，在所述步骤S1中，所述根据所述室外温度设置所述室外风机的启动转速包括：
所述室外温度在第一温度区间范围时，所述室外风机为第一启动转速；
所述室外温度在第二温度区间范围时，所述室外风机为第二启动转速；
所述室外温度在第三温度区间范围时，所述室外风机为第三启动转速。
优选地，在所述步骤S1中，所述根据所述室外温度设置所述室外风机的启动转速包括：
获取所述室外风机的额定转速N 额和最小转速N min；
所述第一启动转速为所述最小转速N min，所述第三启动转速为所述额定转速N 额，所述第二启动转速与所述最小转速N min和所述额定转速N 额成线性关系。
优选地，所述第二启动转速与所述最小转速N min和所述额定转速N 额成线性关系包括：所述第二启动转速满足以下公式：
N=[( N 额-N min)/( T 2- T 1)]•(T- T 1)+ N min
其中N为第二启动转速，T为当前的室外温度，T 1为第一温度区间范围的最大值，T 2为所述第三温度区间范围的最小值。
优选地，所述第一区间范围为小于-10℃，所述第二区间范围为-10℃到15℃；所述第三区间范围为大于15℃。
优选地，在所述步骤S4中，所述根据所述压缩机的冷凝压力获取对应的工作转速包括：
所述冷凝压力在第一压力区间范围时，所述室外风机为第一工作转速；
所述冷凝压力在第二压力区间范围时，所述室外风机为第二工作转速；
所述冷凝压力在第三压力区间范围时，所述室外风机为第三工作转速。
优选地，在所述步骤S4中，所述根据所述压缩机的冷凝压力获取对应的工作转速还包括：
获取所述室外风机的额定转速N 额和所述室外风机的最大转速N max；
所述第一工作转速为所述额定转速N 额，所述第三工作转速为所述最大转速N max，所述第二工作转速与所述额定转速N 额和所述最大转速N max成线性关系。
优选地，所述第二工作转速与所述额定转速N 额和所述最大转速N max成线性关系包括：所述第二工作转速满足以下公式：
N=[( N max-N 额)/( P 2-P 1)]•(P-P 1)+ N 额
其中N为第二工作转速，P为当前的冷凝压力，P 1为第一压力区间范围的最大值，P 2为所述第三压力区间范围的最小值。
本发明还构造一种间接蒸发冷室外风机调节装置，包括：
第一温度获取模块，用于获取所述室外风机对应的室外温度；
控制模块，用于根据所述所述室外温度设置所述室外风机的启动转速；
第二温度获取模块，用于获取与所述室外风机对应的室内风机的送风温度；
判断模块，用于确认所述送风温度是否满足设定值；
所述控制模块还用于在所述判断模块的判断结果为肯定时，设置所述室外风机的工作转速；
所述控制模块还用于在所述判断模块的判断结果为否定时，开启与所述室外风机对应的压缩机；
冷凝压力获取模块，用于获取所述压缩机开启时所述压缩机的冷凝压力；
所述控制模块还用于根据所述压缩机的冷凝压力获取对应的工作转速。
优选地，所述间接蒸发冷室外风机调节装置还包括第一存储模块；
所述第一存储模块用于存储所述室外温度的温度区间范围及与所述温度区间范围对应的启动转速；和/或
所述间接蒸发冷室外风机调节装置还包括第二存储模块；
所述第二存储模块用于存储所述压缩机的冷凝压力区间范围及与所述压力区间范围对应的工作转速。
 有益效果
实施本发明的一种间接蒸发冷室外风机控制方法和装置，具有以下有益效果：满足多种室外风机使用情况下的转速控制，增加了室外风机的转速控制的灵活性和多样性。
 附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图1是本发明一种间接蒸发冷室外风机控制方法的程序流程图；
图2是本发明一种间接蒸发冷室外风机控制装置第一实施例的功能模块示意图；
图3是本发明一种间接蒸发冷室外风机控制装置第一实施例的功能模块示意图。
 本发明的实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。
如图1所示，在本发明的一种间接蒸发冷室外风机控制方法第一实施例中，包括以下步骤：
S1、获取室外风机对应的室外温度，根据室外温度设置室外风机的启动转速；
S2、获取与室外风机对应的室内风机的送风温度，确认送风温度是否满足设定值；若是，则执行步骤S3，若否，则执行步骤S4；
S3、设置室外风机的工作转速为启动转速并结束；
S4、开启与室外风机对应的压缩机，并根据压缩机的冷凝压力获取对应的工作转速。
具体的，室外风机的启动转速是一个初始的转速，启动转速的大小主要由室外温度来决定。也可以理解为启动转速是室外风机运行的第一个转速，大概运行时间为60秒。在室外风机开启时，根据室外环境温度来确定室外风机的启动转速，可以防止室外风机的启动转速过高或者过低，使室外风机能够尽快到达稳定运行状态。当室外风机开始以启动转速运行时，持续检测室内风机的送风温度，如果室内的送风温度达到预设设定的温度值，则室外风机的后续转速就按照启动转速来运行，即将启动转速作为室外风机的工作转速控制室外风机进行工作。如果室内的送风温度不满足要求，即达不到预先设定的温度值，在控制与室外风机对应的压缩机开始工作，这个时候可以根据压缩机的冷凝压力来获取对应的工作转速，并控制室外风机在以该工作转速工作。可以理解，如果室外空气温度较小，不需要开启压缩机时，只进行室外空气和室内空气换热的模式既可以满足温度设定的要求。如果室外空气温度较大，且室内空气有制冷需求时,达到了开启压缩机的条件时，采用室外空气和室内空气以及室内空气和蒸发器混合换热的模式工作。室外风机的此时的工作转速根据冷凝压力的大小进行调节。
进一步的，在一些实施例中，在步骤S1中，根据室外温度设置室外风机的启动转速包括：室外温度在第一温度区间范围时，室外风机为第一启动转速；室外温度在第二温度区间范围时，室外风机为第二启动转速；室外温度在第三温度区间范围时，室外风机为第三启动转速。具体的，可以根据实际情况对室外温度进行分区间设置，根据不同的区间范围设置不同的启动转速。例如第一温度区间范围为小于-10℃，第二温度区间范围为-10℃到15℃；第三温度区间范围为大于15℃。例如当室外温度低于-10℃，采用室外风机以第一启动转速开始启动工作。
进一步的，在上面的基础上，在步骤S1中，根据室外温度设置室外风机的启动转速包括：获取室外风机的额定转速N 额和最小转速N min；第一启动转速为最小转速N min，第三启动转速为额定转速N 额，第二启动转速与最小转速N min和额定转速N 额成线性关系。具体的，可以根据室外风机的实际工作能力，获取室外风机的额定转速N 额和最小转速N min，根据一般的应用情况，可以将室外风机的最小转速N min设置为风机最大转速的25%到35%；额定转速N 额可以设置为风机最大转速的80%到90%。当室外温度在第一温度区间范围时，室外风机对应的第一启动转速为室外风机的最小转速N min，当室外温度在第三温度区间范围时，室外风机对应的第三启动转速为室外风机的额定转速N 额，当室外温度在第二温度区间范围时，可以根据最小转速N min和额定转速N 额进行线性调节，设置第二启动转速。此时的室外风机的第二启动转速可以根据多种控制方式，例如可以根据室外温度、室内送风温度、室内回风温度、室内送回风温差、送回风压差、远程温度等等的大小做最小转速N min到额定转速N 额的线性比例调节。这样可以大大减少系统器件工作的能耗，节约能源，减少了其他部件使用次数，提高了其他部件的使用寿命，同时也充分利用通过多种控制方式控制室外风机转速的优点。
进一步的，在上面的基础上，上述的第二启动转速与最小转速N min和额定转速N 额成线性关系包括：第二启动转速满足以下公式：
N=[( N 额-N min)/( T 2- T 1)]•(T- T 1)+ N min
其中N为第二启动转速，T为当前的室外温度，T 1为第一温度区间范围的最大值，T 2为第三温度区间范围的最小值。
具体的，依照上述公式，可以根据最小转速N min和额定转速N 额，以及当前的室外温度获取第二启动转速。当然，此处的计算公式只为一种可选方案，在其他的实施例中，也可以根据其他的参数设置第二启动转速与最小转速N min和额定转速N 额的线性关系。
进一步的，在一实施例中，在步骤S4中，根据压缩机的冷凝压力获取对应的工作转速包括：
冷凝压力在第一压力区间范围时，室外风机为第一工作转速；
冷凝压力在第二压力区间范围时，室外风机为第二工作转速；
冷凝压力在第三压力区间范围时，室外风机为第三工作转速。
具体的，可以根据实际情况对压缩机的冷凝压力进行分区间设置，根据不同的区间范围设置不同的工作转速。其可以理解，冷凝压力越大，压缩机制冷系统的制冷效率是越低的，所以冷凝压力越大，就要提供一个较大的室外风机的风量，这样做的目的是通过增大室外风机的风量来降低冷凝压力。
进一步的，在上面的基础上，在步骤S4中，根据压缩机的冷凝压力获取对应的工作转速还包括：获取室外风机的额定转速N 额和室外风机的最大转速N max；第一工作转速为额定转速N 额，第三工作转速为最大转速N max，第二工作转速与额定转速N 额和最大转速N max成线性关系。具体的，可以根据室外风机的实际工作能力，获取室外风机的额定转速N 额和最大转速N max，根据一般的应用情况，可以将室外风机的额定转速N 额设置为风机最大转速N max的80%到90%。当压缩机的冷凝压力在第一压力区间范围时，室外风机对应的第一工作转速为室外风机的额定转速N 额，当压缩机的冷凝压力在第三压力区间范围时，室外风机对应的第三工作转速为室外风机的最大转速N max，而当压缩机的冷凝压力在第二压力区间范围时，可以根据额定转速N 额和最大转速N max进行线性调节，设置第二工作转速。此时，此时室外风机的第二工作转速可以根据压缩机的冷凝压力的大小做额定转速N 额到最大转速N max的比例调节，该调节可以在压缩机开启时室外风机可以提供一个较大的风量，加强换热效果，使压缩机提供的冷量能得到一个充分的利用，其次由于室外风机和冷凝器装配在一起，通过室外风机工作转速的调节可以适当降低冷凝器的压力，提高制冷效率，减少压缩机的功耗。
进一步的，在上面的基础上，第二工作转速与额定转速N 额和最大转速N max成线性关系包括：第二工作转速满足以下公式：
N=[( N max-N 额)/( P 2-P 1)]•(P-P 1)+ N 额
其中N为第二工作转速，P为当前的冷凝压力，P 1为第一压力区间范围的最大值，P 2为第三压力区间范围的最小值。
具体的，依照上述公式，可以根据额定转速N 额和最大转速N max以及当前的冷凝压力获取第二工作转速。当然，此处的计算公式只为一种可选方案，在其他的实施例中，也可以根据其他的参数设置第二工作转速与额定转速N 额和最大转速N max的线性关系。此处，冷凝压力值的取值一般是通过在压缩机排气管上布置压力传感器来测量压缩机制冷系统的冷凝压力；这个压力值的范围一般在0到40bar。
另，本发明还构造一种间接蒸发冷室外风机调节装置。
参照图2，图2为本发明一种间接蒸发冷室外风机调节装置的第一实施例的功能模块示意图。
在本实施例中，本发明一种间接蒸发冷室外风机40调节装置，包括：
第一温度获取模块21，用于获取室外风机40对应的室外温度；
控制模块10，用于根据室外温度设置室外风机40的启动转速；
第二温度获取模块，用于获取与室外风机40对应的室内风机的送风温度；
判断模块30，用于确认送风温度是否满足设定值；
控制模块10还用于在判断模块30的判断结果为肯定时，设置室外风机40的工作转速；
控制模块10还用于在判断模块30的判断结果为否定时，开启与室外风机40对应的压缩机50；
冷凝压力获取模块51，用于获取压缩机50开启时压缩机50的冷凝压力；
控制模块10还用于根据压缩机51的冷凝压力获取对应的工作转速。
具体的，室外风机40的启动转速是一个初始的转速，启动转速的大小主要由室外温度来决定。也可以理解为启动转速是室外风机40运行的第一个转速，大概运行时间为60秒。在实施例中，可以通过第一温度获取模块21获取室外风机40对应的室外温度，通过控制模块10根据室外温度设置室外风机40的启动转速。当室外风机40开始以启动转速运行时，通过第二温度获取模块22持续检测室内风机的送风温度，并通过判断模块30对该送风温度进行判断，如果室内的送风温度达到预设设定的温度值，控制模块10控制室外风机40的后续转速就按照启动转速来运行，即将启动转速作为室外风机40的工作转速控制室外风机40进行工作。如果室内的送风温度不满足要求，即达不到预先设定的温度值，控制模块10则控制与室外风机40对应的压缩机50开始工作，并且通过冷凝压力获取模块51获取压缩机50开启时压缩机50的冷凝压力；控制模块10此时可以根据获取到的压缩机50的冷凝压力来获取对应的工作转速，并控制室外风机40在以该工作转速工作。此处可以理解，冷凝压力获取模块51可以为压缩机排气管上布置压力传感器。
进一步的参照图3，图3为本发明一种间接蒸发冷室外风机40调节装置的第二实施例的功能模块示意图。
在本实施例中，在上面的基础上，间接蒸发冷室外风机40调节装置还包括第一存储模块61；第一存储模块61用于存储室外温度的温度区间范围及与温度区间范围对应的启动转速；具体的，可以通过第一存储模块61存储室外温度的温度区间范围及与温度区间范围对应的启动转速，例如，可以将室外温度进行多个温度区间的划分，例如室外温度在第一温度区间范围时，室外风机40为第一启动转速；室外温度在第二温度区间范围时，室外风机40为第二启动转速；室外温度在第三温度区间范围时，室外风机40为第三启动转速。更具体的举例，第一温度区间范围为小于-10℃，第二温度区间范围为-10℃到15℃；第三温度区间范围为大于15℃。例如当室外温度低于-10℃，采用室外风机40以第一启动转速开始启动工作。同时还可以理解，第一存储模块61可以存储为第一启动转速为最小转速N min，第三启动转速为额定转速N 额，第二启动转速与最小转速N min和额定转速N 额的线性关系，其中该线性关系也可以具体到公式，第二启动转速满足以下公式：
N=[( N 额-N min)/( T 2- T 1)]•(T- T 1)+ N min
其中N为第二启动转速，T为当前的室外温度，T 1为第一温度区间范围的最大值，T 2为第三温度区间范围的最小值。
在本实施例中，在上面的基础上，间接蒸发冷室外风机40调节装置还包括第二存储模块62；第二存储模块62用于存储压缩机50的冷凝压力区间范围及与压力区间范围对应的工作转速。具体的，可以通过第二存储模块62存储压缩机50的冷凝压力区间范围及与压力区间范围对应的工作转速，例如，可以将压缩机50的冷凝压力进行多个压力区间范围的划分，例如当压缩机50的冷凝压力在第一压力区间范围时，室外风机40为第一工作转速；当压缩机50的冷凝压力在第二压力区间范围时，室外风机40为第二工作转速；当压缩机50的冷凝压力在第三压力区间范围时，室外风机40为第三工作转速。同时可以理解，第二存储模块62可以存储第一工作转速为室外风机40的额定转速N 额，第三工作转速为室外风机40的最大转速N max，第二工作转速与该额定转速N 额和最大转速N max的线性关系，其中该线性关系可以具体的公司，第二工作转速满足以下公式：
N=[( N max-N 额)/( P 2-P 1)]•(P-P 1)+ N 额
其中N为第二工作转速，P为当前的冷凝压力，P 1为第一压力区间范围的最大值，P 2为第三压力区间范围的最小值。
可以理解的，以上实施例仅表达了本发明的优选实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制；应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，可以对上述技术特点进行自由组合，还可以做出若干变形和改进，这些都属于本发明的保护范围；因此，凡跟本发明权利要求范围所做的等同变换与修饰，均应属于本发明权利要求的涵盖范围。

Claims (10)

  1. 一种间接蒸发冷室外风机控制方法，其特征在于，包括以下步骤：
    S1、获取室外风机对应的室外温度，根据所述室外温度设置所述室外风机的启动转速；
    S2、获取与所述室外风机对应的室内风机的送风温度，确认所述送风温度是否满足设定值；若是，则执行步骤S3，若否，则执行步骤S4；
    S3、设置所述室外风机的工作转速为所述启动转速并结束；
    S4、开启与所述室外风机对应的压缩机，并根据所述压缩机的冷凝压力获取对应的工作转速。
  2. 根据权利要求1所述的间接蒸发冷室外风机控制方法，其特征在于，
    在所述步骤S1中，所述根据所述室外温度设置所述室外风机的启动转速包括：
    所述室外温度在第一温度区间范围时，所述室外风机为第一启动转速；
    所述室外温度在第二温度区间范围时，所述室外风机为第二启动转速；
    所述室外温度在第三温度区间范围时，所述室外风机为第三启动转速。
  3. 根据权利要求2所述的间接蒸发冷室外风机控制方法，其特征在于，
    在所述步骤S1中，所述根据所述室外温度设置所述室外风机的启动转速包括：
    获取所述室外风机的额定转速N 额和最小转速N min；
    所述第一启动转速为所述最小转速N min，所述第三启动转速为所述额定转速N 额，所述第二启动转速与所述最小转速N min和所述额定转速N 额成线性关系。
  4. 根据权利要求3所述的间接蒸发冷室外风机控制方法，其特征在于，
    所述第二启动转速与所述最小转速N min和所述额定转速N 额成线性关系包括：所述第二启动转速满足以下公式：
    N=[( N 额-N min)/( T 2- T 1)]•(T- T 1)+ N min
    其中N为第二启动转速，T为当前的室外温度，T 1为第一温度区间范围的最大值，T 2为所述第三温度区间范围的最小值。
  5. 根据权利要求2所述的间接蒸发冷室外风机控制方法，其特征在于，所述第一温度区间范围为小于-10℃，所述第二温度区间范围为-10℃到15℃；所述第三温度区间范围为大于15℃。
  6. 根据权利要求1所述的间接蒸发冷室外风机控制方法，其特征在于，在所述步骤S4中，所述根据所述压缩机的冷凝压力获取对应的工作转速包括：
    所述冷凝压力在第一压力区间范围时，所述室外风机为第一工作转速；
    所述冷凝压力在第二压力区间范围时，所述室外风机为第二工作转速；
    所述冷凝压力在第三压力区间范围时，所述室外风机为第三工作转速。
  7. 根据权利要求6所述的间接蒸发冷室外风机控制方法，其特征在于，
    在所述步骤S4中，所述根据所述压缩机的冷凝压力获取对应的工作转速还包括：
    获取所述室外风机的额定转速N 额和所述室外风机的最大转速N max；
    所述第一工作转速为所述额定转速N 额，所述第三工作转速为所述最大转速N max，所述第二工作转速与所述额定转速N 额和所述最大转速N max成线性关系。
  8. 根据权利要求7所述的间接蒸发冷室外风机控制方法，其特征在于，
    所述第二工作转速与所述额定转速N 额和所述最大转速N max成线性关系包括：所述第二工作转速满足以下公式：
    N=[( N max-N 额)/( P 2-P 1)]•(P-P 1)+ N 额
    其中N为第二工作转速，P为当前的冷凝压力，P 1为第一压力区间范围的最大值，P 2为所述第三压力区间范围的最小值。
  9. 一种间接蒸发冷室外风机调节装置，其特征在于，包括：
    第一温度获取模块，用于获取所述室外风机对应的室外温度；
    控制模块，用于根据所述所述室外温度设置所述室外风机的启动转速；
    第二温度获取模块，用于获取与所述室外风机对应的室内风机的送风温度；
    判断模块，用于确认所述送风温度是否满足设定值；
    所述控制模块还用于在所述判断模块的判断结果为肯定时，设置所述室外风机的工作转速；
    所述控制模块还用于在所述判断模块的判断结果为否定时，开启与所述室外风机对应的压缩机；
    冷凝压力获取模块，用于获取所述压缩机开启时所述压缩机的冷凝压力；
    所述控制模块还用于根据所述压缩机的冷凝压力获取对应的工作转速。
  10. 根据权利要求9所述的间接蒸发冷室外风机调节装置，其特征在于，所述间接蒸发冷室外风机调节装置还包括第一存储模块；
    所述第一存储模块用于存储所述室外温度的温度区间范围及与所述温度区间范围对应的启动转速；和/或
    所述间接蒸发冷室外风机调节装置还包括第二存储模块；
    所述第二存储模块用于存储所述压缩机的冷凝压力区间范围及与所述压力区间范围对应的工作转速。
     
PCT/CN2019/083734 2019-01-25 2019-04-22 一种间接蒸发冷室外风机控制方法及控制装置 WO2020151113A1 (zh)

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