CN109827269A - A kind of cold outdoor fan control method of indirect evaporation and control device - Google Patents

A kind of cold outdoor fan control method of indirect evaporation and control device Download PDF

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Publication number
CN109827269A
CN109827269A CN201910075774.3A CN201910075774A CN109827269A CN 109827269 A CN109827269 A CN 109827269A CN 201910075774 A CN201910075774 A CN 201910075774A CN 109827269 A CN109827269 A CN 109827269A
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Prior art keywords
outdoor fan
speed
temperature
range
outdoor
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CN109827269B (en
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张宏宇
王大伟
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Shenzhen Iteaq Network Power Technology Co Ltd
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Shenzhen Iteaq Network Power Technology Co Ltd
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Priority to CN201910075774.3A priority Critical patent/CN109827269B/en
Priority to PCT/CN2019/083734 priority patent/WO2020151113A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74Control 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
    • F24F11/77Control 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86Control 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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

Abstract

The present invention relates to a kind of cold outdoor fan control method of indirect evaporation and control devices, a kind of cold outdoor fan control method of indirect evaporation of the invention includes: S1, obtains the corresponding outdoor temperature of outdoor fan, and the starting revolving speed of outdoor fan is arranged according to outdoor temperature;Whether the supply air temperature of S2, acquisition indoor fan corresponding with outdoor fan, confirmation supply air temperature meet setting value;If executing step S3, step S4 is executed if not;S3, the working speed that outdoor fan is arranged are starting revolving speed and terminate;S4, unlatching compressor corresponding with outdoor fan, and corresponding working speed is obtained according to the condensing pressure of compressor.The revolving speed that implementing the present invention can satisfy under a variety of outdoor fan service conditions controls, and increases the flexibility and diversity of the revolving speed control of outdoor fan.

Description

A kind of cold outdoor fan control method of indirect evaporation and control device
Technical field
The present invention relates to refrigeration technology fields, more specifically to a kind of cold outdoor fan control method of indirect evaporation And control device.
Background technique
For indirect evaporation cold group, the adjusting of outdoor fan revolving speed will have a direct impact on the energy consumption of unit entirety, tradition side Case adjusts the revolving speed of outdoor fan generally by single mode, will cause in this way: control mode is single, cannot answer to be a variety of Accurate control mode is provided with occasion, especially there is a problem in the parameter acquisition of control mode, then just having no idea Continue the operation of control outdoor fan.Cause whole system not work, has serious consequences.
Summary of the invention
The technical problem to be solved in the present invention is that providing an inter-species for the above-mentioned prior art defect of the prior art Connect the cold outdoor fan control method of evaporation and control device.
The technical solution adopted by the present invention to solve the technical problems is: constructing a kind of cold outdoor fan control of indirect evaporation Method, comprising the following steps:
S1, the corresponding outdoor temperature of outdoor fan is obtained, the starting of the outdoor fan is set according to the outdoor temperature Revolving speed;
S2, the supply air temperature for obtaining indoor fan corresponding with the outdoor fan confirm whether the supply air temperature is full Sufficient setting value;If so, S3 is thened follow the steps, if it is not, thening follow the steps S4;
S3, the working speed that the outdoor fan is arranged are the starting revolving speed and terminate;
S4, compressor corresponding with the outdoor fan is opened, and is obtained and is corresponded to according to the condensing pressure of the compressor Working speed.
Preferably, in the step S1, the starting revolving speed that the outdoor fan is set according to the outdoor temperature Include:
For the outdoor temperature in the first temperature range range, the outdoor fan is the first starting revolving speed;
For the outdoor temperature in second temperature interval range, the outdoor fan is the second starting revolving speed;
For the outdoor temperature in third temperature range range, the outdoor fan is that third starts revolving speed.
Preferably, in the step S1, the starting revolving speed that the outdoor fan is set according to the outdoor temperature Include:
Obtain the rated speed N of the outdoor fanVolumeWith minimum speed Nmin
The first starting revolving speed is the minimum speed Nmin, the third starting revolving speed is the rated speed NVolume, institute State the second starting revolving speed and the minimum speed NminWith the rated speed NVolumeIt is linear.
Preferably, the second starting revolving speed and the minimum speed NminWith the rated speed NVolumeLinear packet Include: the second starting revolving speed meets following formula:
N=[(NVolume-Nmin)/(T2-T1)]·(T-T1)+Nmin
Wherein N is the second starting revolving speed, and T is current outdoor temperature, T1For the maximum value of the first temperature range range, T2 For the minimum value of the third temperature range range.
Preferably, the first interval range is less than -10 DEG C, and the second interval range is -10 DEG C to 15 DEG C;It is described 3rd interval range is greater than 15 DEG C.
Preferably, described that corresponding working speed is obtained according to the condensing pressure of the compressor in the step S4 Include:
For the condensing pressure in first pressure interval range, the outdoor fan is the first working speed;
For the condensing pressure in second pressure interval range, the outdoor fan is the second working speed;
For the condensing pressure in third pressure range range, the outdoor fan is third working speed.
Preferably, described that corresponding working speed is obtained according to the condensing pressure of the compressor in the step S4 Further include:
Obtain the rated speed N of the outdoor fanVolumeWith the maximum (top) speed N of the outdoor fanmax
First working speed is the rated speed NVolume, the third working speed is the maximum (top) speed Nmax, institute State the second working speed and the rated speed NVolumeWith the maximum (top) speed NmaxIt is linear.
Preferably, second working speed and the rated speed NVolumeWith the maximum (top) speed NmaxLinear packet Include: second working speed meets following formula:
N=[(Nmax-NVolume)/(P2-P1)]·(P-P1)+NVolume
Wherein N is the second working speed, and P is current condensing pressure, P1For the maximum value of first pressure interval range, P2 For the minimum value of the third pressure range range.
The present invention also constructs a kind of cold outdoor fan regulating device of indirect evaporation, comprising:
First temperature acquisition module, for obtaining the corresponding outdoor temperature of the outdoor fan;
Control module, for the starting revolving speed of the outdoor fan to be arranged according to the outdoor temperature;
Second temperature obtains module, for obtaining the supply air temperature of indoor fan corresponding with the outdoor fan;
Judgment module, for confirming whether the supply air temperature meets setting value;
The control module is also used to that the outdoor fan is arranged when the judging result of the judgment module is certainly Working speed;
The control module is also used to open and the outdoor fan when the judging result of the judgment module is negates Corresponding compressor;
Condensing pressure obtains module, for obtaining the condensing pressure of the compressor when compressor is opened;
The control module is also used to obtain corresponding working speed according to the condensing pressure of the compressor.
Preferably, the cold outdoor fan regulating device of the indirect evaporation further includes the first memory module;
First memory module be used for store the outdoor temperature temperature range range and with the temperature range model Enclose corresponding starting revolving speed;And/or
The cold outdoor fan regulating device of indirect evaporation further includes the second memory module;
Second memory module be used for store the compressor condensing pressure interval range and with the pressure range The corresponding working speed of range.
Implement a kind of cold outdoor fan control method of indirect evaporation of the invention and device, has the advantages that full Revolving speed control under a variety of outdoor fan service conditions of foot increases the flexibility and diversity of the revolving speed control of outdoor fan.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is a kind of program flow diagram of the cold outdoor fan control method of indirect evaporation of the present invention;
Fig. 2 is a kind of the functional block diagram of the cold outdoor fan control device first embodiment of indirect evaporation of the present invention;
Fig. 3 is a kind of the functional block diagram of the cold outdoor fan control device first embodiment of indirect evaporation of the present invention.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail A specific embodiment of the invention.
As shown in Figure 1, in the cold outdoor fan control method first embodiment of a kind of indirect evaporation of the invention, including with Lower step:
S1, the corresponding outdoor temperature of outdoor fan is obtained, the starting revolving speed of outdoor fan is set according to outdoor temperature;
Whether the supply air temperature of S2, acquisition indoor fan corresponding with outdoor fan, confirmation supply air temperature meet setting value; If so, S3 is thened follow the steps, if it is not, thening follow the steps S4;
S3, the working speed that outdoor fan is arranged are starting revolving speed and terminate;
S4, unlatching compressor corresponding with outdoor fan, and corresponding work is obtained according to the condensing pressure of compressor and is turned Speed.
Specifically, the starting revolving speed of outdoor fan is an initial revolving speed, start the size of revolving speed mainly by outdoor temp Degree is to determine.It can be appreciated that starting revolving speed is first revolving speed of outdoor fan operation, general runing time is 60 seconds.? When outdoor fan is opened, the starting revolving speed of outdoor fan is determined according to outdoor environment temperature, can prevent opening for outdoor fan Turn speed is excessively high or too low, and outdoor fan is enable to reach steady operational status as early as possible.When outdoor fan starts to start and turn When speed operation, the supply air temperature of indoor fan is persistently detected, if indoor supply air temperature reaches the temperature value of default settings, The subsequent revolving speed of outdoor fan is just run according to starting revolving speed, i.e., will start revolving speed as the working speed of outdoor fan and control Outdoor fan works.If indoor supply air temperature is unsatisfactory for requiring, that is, predetermined temperature value is not achieved, is controlling Compressor starts work corresponding with outdoor fan, can obtain corresponding work this when according to the condensing pressure of compressor Make revolving speed, and controls outdoor fan with working speed work.If being appreciated that outside air temperature is smaller, do not need When opening compressor, the mode for only carrying out outdoor air and room air heat exchange both can satisfy the requirement that temperature is set.If Outside air temperature is larger, and when room air has refrigeration demand, when having reached the condition for opening compressor, using outdoor air It works with the mode of room air and room air and evaporator mixed heat transfer.The working speed at this time of outdoor fan according to The size of condensing pressure is adjusted.
Further, in some embodiments, in step sl, the starting revolving speed of outdoor fan is set according to outdoor temperature It include: outdoor temperature in the first temperature range range, outdoor fan is the first starting revolving speed;Outdoor temperature is in second temperature area Between range when, outdoor fan be second starting revolving speed;In third temperature range range, outdoor fan opens outdoor temperature for third Turn speed.Specifically, by stages setting can be carried out to outdoor temperature according to the actual situation, it is arranged according to different interval ranges Different starting revolving speeds.Such as first temperature range range be less than -10 DEG C, second temperature interval range be -10 DEG C to 15 DEG C; Third temperature range range is greater than 15 DEG C.Such as when outdoor temperature be lower than -10 DEG C, use outdoor fan with first starting revolving speed Start to start work.
Further, on the basis of above, in step sl, the starting revolving speed of outdoor fan is set according to outdoor temperature It include: the rated speed N for obtaining outdoor fanVolumeWith minimum speed Nmin;First starting revolving speed is minimum speed Nmin, third starting Revolving speed is rated speed NVolume, second starts revolving speed and minimum speed NminWith rated speed NVolumeIt is linear.Specifically, can be with According to the hands-on background of outdoor fan, the rated speed N of outdoor fan is obtainedVolumeWith minimum speed Nmin, answered according to general It, can be by the minimum speed N of outdoor fan with situationminIt is set as 25% to the 35% of blower maximum (top) speed;Rated speed NVolumeIt can To be set as 80% to the 90% of blower maximum (top) speed.When outdoor temperature is in the first temperature range range, outdoor fan is corresponding First starting revolving speed be outdoor fan minimum speed Nmin, when outdoor temperature is in third temperature range range, outdoor fan Corresponding third starting revolving speed is the rated speed N of outdoor fanVolume, can be with when outdoor temperature is in second temperature interval range According to minimum speed NminWith rated speed NVolumeCarry out linear regulation, setting the second starting revolving speed.The second of outdoor fan at this time Start revolving speed can according to multiple control modes, such as can according to outdoor temperature, indoor supply air temperature, indoor return air temperature, The indoor air blow and return temperature difference, the size for sending leeway, remote temperature back to etc. are minimum speed NminTo rated speed NVolumeLinear ratio Example is adjusted.The energy consumption of system device work can be greatly reduced in this way, it is energy saving, reduce other component access times, mentions The high service life of other component, while also making full use of the advantages of controlling outdoor fan revolving speed by multiple control modes.
Further, on the basis of above, the second above-mentioned starting revolving speed and minimum speed NminWith rated speed NVolumeAt Linear relationship includes: that the second starting revolving speed meets following formula:
N=[(NVolume-Nmin)/(T2-T1)]·(T-T1)+Nmin
Wherein N is the second starting revolving speed, and T is current outdoor temperature, T1For the maximum value of the first temperature range range, T2 For the minimum value of third temperature range range.
Specifically, according to above-mentioned formula, it can be according to minimum speed NminWith rated speed NVolumeAnd current outdoor temp Degree obtains the second starting revolving speed.Certainly, calculation formula herein is only that a kind of optinal plan in other examples can also To start revolving speed and minimum speed N according to other parameter settings secondminWith rated speed NVolumeLinear relationship.
Further, in one embodiment, in step s 4, corresponding work is obtained according to the condensing pressure of compressor to turn Speed includes:
For condensing pressure in first pressure interval range, outdoor fan is the first working speed;
For condensing pressure in second pressure interval range, outdoor fan is the second working speed;
For condensing pressure in third pressure range range, outdoor fan is third working speed.
Specifically, by stages setting can be carried out the condensing pressure to compressor according to the actual situation, according to different areas Between range different working speeds is set.It is appreciated that condensing pressure is bigger, and the refrigerating efficiency of compressor refrigeration system is to get over Low, so condensing pressure is bigger it is necessary to provide the air quantity of a biggish outdoor fan, the purpose for the arrangement is that passing through increase The air quantity of outdoor fan reduces condensing pressure.
Further, on the basis of above, in step s 4, corresponding work is obtained according to the condensing pressure of compressor Revolving speed further include: obtain the rated speed N of outdoor fanVolumeWith the maximum (top) speed N of outdoor fanmax;First working speed is specified Revolving speed NVolume, third working speed is maximum (top) speed Nmax, the second working speed and rated speed NVolumeWith maximum (top) speed NmaxIt is linear Relationship.Specifically, the rated speed N of outdoor fan can be obtained according to the hands-on background of outdoor fanVolumeAnd maximum (top) speed Nmax, can be by the rated speed N of outdoor fan according to general applicable casesVolumeIt is set as blower maximum (top) speed Nmax80% To 90%.When the condensing pressure of compressor is in first pressure interval range, corresponding first working speed of outdoor fan is room The rated speed N of outer blowerVolume, when the condensing pressure of compressor is in third pressure range range, the corresponding third of outdoor fan Working speed is the maximum (top) speed N of outdoor fanmax, can be with and when the condensing pressure of compressor is in second pressure interval range According to rated speed NVolumeWith maximum (top) speed NmaxLinear regulation is carried out, the second working speed is set.At this point, outdoor fan at this time Second working speed can be rated speed N according to the size of the condensing pressure of compressorVolumeTo maximum (top) speed NmaxRatio tune Section, the adjusting can provide a biggish air quantity by outdoor fan when compressor is opened, reinforce heat transfer effect, make to compress The cooling capacity that machine provides can obtain one and adequately utilize, secondly because outdoor fan and condenser are assembled together, pass through outdoor The adjusting of blower working speed can suitably reduce the pressure of condenser, improve refrigerating efficiency, reduce the power consumption of compressor.
Further, on the basis of above, the second working speed and rated speed NVolumeWith maximum (top) speed NmaxLinear pass System includes: that the second working speed meets following formula:
N=[(Nmax-NVolume)/(P2-P1)]·(P-P1)+NVolume
Wherein N is the second working speed, and P is current condensing pressure, P1For the maximum value of first pressure interval range, P2 For the minimum value of third pressure range range.
Specifically, according to above-mentioned formula, it can be according to rated speed NVolumeWith maximum (top) speed NmaxAnd current condensing pressure Obtain the second working speed.Certainly, calculation formula herein is only a kind of optinal plan, in other examples, can also be with According to other the second working speeds of parameter setting and rated speed NVolumeWith maximum (top) speed NmaxLinear relationship.Herein, condensation pressure The value of force value measures the condensation of compressor refrigeration system generally by pressure sensor is arranged on compressor exhaust pipe Pressure;The range of this pressure value generally arrives 40bar 0.
In addition, the present invention also constructs a kind of cold outdoor fan regulating device of indirect evaporation.
Referring to Fig. 2, Fig. 2 is a kind of function mould of the first embodiment of the cold outdoor fan regulating device of indirect evaporation of the present invention Block schematic diagram.
In the present embodiment, a kind of cold 40 regulating device of outdoor fan of indirect evaporation of the present invention, comprising:
First temperature acquisition module 21, for obtaining the corresponding outdoor temperature of outdoor fan 40;
Control module 10, for the starting revolving speed of outdoor fan 40 to be arranged according to outdoor temperature;
Second temperature obtains module, for obtaining the supply air temperature of indoor fan corresponding with outdoor fan 40;
Judgment module 30, for confirming whether supply air temperature meets setting value;
Control module 10 is also used to when the judging result of judgment module 30 is certainly, and the work of setting outdoor fan 40 turns Speed;
Control module 10 is also used to open corresponding with outdoor fan 40 when the judging result of judgment module 30 is negates Compressor 50;
Condensing pressure obtains module 51, for obtaining the condensing pressure of compressor 50 when compressor 50 is opened;
Control module 10 is also used to obtain corresponding working speed according to the condensing pressure of compressor 51.
Specifically, the starting revolving speed of outdoor fan 40 is an initial revolving speed, start the size of revolving speed mainly by outdoor Temperature determines.It can be appreciated that starting revolving speed is first revolving speed that outdoor fan 40 is run, general runing time is 60 Second.In embodiment, the corresponding outdoor temperature of outdoor fan 40 can be obtained by the first temperature acquisition module 21, passes through control The starting revolving speed of outdoor fan 40 is arranged according to outdoor temperature for module 10.When outdoor fan 40 starts to start revolving speed operation, The supply air temperature that module 22 persistently detects indoor fan is obtained by second temperature, and by judgment module 30 to the supply air temperature Judged, if indoor supply air temperature reaches the temperature value of default settings, after control module 10 controls outdoor fan 40 Continuous revolving speed is just run according to starting revolving speed, i.e., will start revolving speed as the working speed of outdoor fan 40 and control outdoor fan 40 It works.If indoor supply air temperature is unsatisfactory for requiring, that is, predetermined temperature value is not achieved, control module 10 is then controlled It makes compressor 50 corresponding with outdoor fan 40 to start to work, and the acquisition compressor 50 of module 51 is obtained by condensing pressure and is opened The condensing pressure of compressor 50 when opening;Control module 10 can obtain at this time according to the condensing pressure of the compressor 50 got Corresponding working speed, and outdoor fan 40 is controlled with working speed work.Herein it is appreciated that condensing pressure obtains mould Block 51 can be to arrange pressure sensor on compressor exhaust pipe.
It is further to implement referring to second that Fig. 3, Fig. 3 are a kind of cold 40 regulating device of outdoor fan of indirect evaporation of the present invention The functional block diagram of example.
In the present embodiment, on the basis of above, cold 40 regulating device of outdoor fan of indirect evaporation further includes first depositing Store up module 61;First memory module 61 is used to store the temperature range range of outdoor temperature and corresponding with temperature range range opens Turn speed;Specifically, can by the first memory module 61 store outdoor temperature temperature range range and with temperature range model Corresponding starting revolving speed is enclosed, for example, outdoor temperature can be carried out to the division of multiple temperature ranges, such as outdoor temperature is first When temperature range range, outdoor fan 40 is the first starting revolving speed;Outdoor temperature is in second temperature interval range, outdoor fan 40 be the second starting revolving speed;For outdoor temperature in third temperature range range, outdoor fan 40 is that third starts revolving speed.More specifically Citing, the first temperature range range be less than -10 DEG C, second temperature interval range be -10 DEG C to 15 DEG C;Third temperature range Range is greater than 15 DEG C.Such as when outdoor temperature be lower than -10 DEG C, use outdoor fan 40 with first starting revolving speed start start work Make.Simultaneously it is further appreciated that it is minimum speed N that the first memory module 61, which can store as the first starting revolving speed,min, third starting Revolving speed is rated speed NVolume, second starts revolving speed and minimum speed NminWith rated speed NVolumeLinear relationship, the wherein linear pass System can also meet following formula specific to formula, the second starting revolving speed:
N=[(NVolume-Nmin)/(T2-T1)]·(T-T1)+Nmin
Wherein N is the second starting revolving speed, and T is current outdoor temperature, T1For the maximum value of the first temperature range range, T2 For the minimum value of third temperature range range.
In the present embodiment, on the basis of above, cold 40 regulating device of outdoor fan of indirect evaporation further includes second depositing Store up module 62;Second memory module 62 is used to store the condensing pressure interval range of compressor 50 and corresponding with pressure range range Working speed.Specifically, can by the second memory module 62 store compressor 50 condensing pressure interval range and with pressure The corresponding working speed of power interval range, for example, the condensing pressure of compressor 50 can be carried out to multiple pressure range ranges It divides, such as when the condensing pressure of compressor 50 is in first pressure interval range, outdoor fan 40 is the first working speed;When For the condensing pressure of compressor 50 in second pressure interval range, outdoor fan 40 is the second working speed;When compressor 50 For condensing pressure in third pressure range range, outdoor fan 40 is third working speed.It should also be understood that the second storage mould Block 62 can store the rated speed N that the first working speed is outdoor fan 40Volume, third working speed be outdoor fan 40 most Big revolving speed Nmax, the second working speed and rated speed NVolumeWith maximum (top) speed NmaxLinear relationship, wherein the linear relationship can With specific company, the second working speed meets following formula:
N=[(Nmax-NVolume)/(P2-P1)]·(P-P1)+NVolume
Wherein N is the second working speed, and P is current condensing pressure, P1For the maximum value of first pressure interval range, P2 For the minimum value of third pressure range range.
It should be understood that above embodiments only express the preferred embodiment of the present invention, description is more specific and detailed Carefully, but it cannot be understood as limitations on the scope of the patent of the present invention;It should be pointed out that for the common skill of this field For art personnel, without departing from the inventive concept of the premise, above-mentioned technical characterstic can be freely combined, can also be done Several modifications and improvements out, these are all within the scope of protection of the present invention;Therefore, all to be done with scope of the invention as claimed Equivalents and modification, should belong to the covering scope of the claims in the present invention.

Claims (10)

1. a kind of cold outdoor fan control method of indirect evaporation, which comprises the following steps:
S1, the corresponding outdoor temperature of outdoor fan is obtained, the starting revolving speed of the outdoor fan is set according to the outdoor temperature;
S2, the supply air temperature for obtaining indoor fan corresponding with the outdoor fan, confirm whether the supply air temperature meets and set Definite value;If so, S3 is thened follow the steps, if it is not, thening follow the steps S4;
S3, the working speed that the outdoor fan is arranged are the starting revolving speed and terminate;
S4, compressor corresponding with the outdoor fan is opened, and corresponding work is obtained according to the condensing pressure of the compressor Make revolving speed.
2. the cold outdoor fan control method of indirect evaporation according to claim 1, which is characterized in that
In the step S1, the starting revolving speed that the outdoor fan is arranged according to the outdoor temperature includes:
For the outdoor temperature in the first temperature range range, the outdoor fan is the first starting revolving speed;
For the outdoor temperature in second temperature interval range, the outdoor fan is the second starting revolving speed;
For the outdoor temperature in third temperature range range, the outdoor fan is that third starts revolving speed.
3. the cold outdoor fan control method of indirect evaporation according to claim 2, which is characterized in that
In the step S1, the starting revolving speed that the outdoor fan is arranged according to the outdoor temperature includes:
Obtain the rated speed N of the outdoor fanVolumeWith minimum speed Nmin
The first starting revolving speed is the minimum speed Nmin, the third starting revolving speed is the rated speed NVolume, described Two starting revolving speeds and the minimum speed NminWith the rated speed NVolumeIt is linear.
4. the cold outdoor fan control method of indirect evaporation according to claim 3, which is characterized in that
The second starting revolving speed and the minimum speed NminWith the rated speed NVolumeLinear includes: described second Starting revolving speed meets following formula:
N=[(NVolume-Nmin)/(T2-T1)]·(T-T1)+Nmin
Wherein N is the second starting revolving speed, and T is current outdoor temperature, T1For the maximum value of the first temperature range range, T2For institute State the minimum value of third temperature range range.
5. the cold outdoor fan control method of indirect evaporation according to claim 2, which is characterized in that first humidity province Between range be less than -10 DEG C, the second temperature interval range be -10 DEG C to 15 DEG C;The third temperature range range is big In 15 DEG C.
6. the cold outdoor fan control method of indirect evaporation according to claim 1, which is characterized in that in the step S4 In, it is described to include: according to the corresponding working speed of the condensing pressure of compressor acquisition
For the condensing pressure in first pressure interval range, the outdoor fan is the first working speed;
For the condensing pressure in second pressure interval range, the outdoor fan is the second working speed;
For the condensing pressure in third pressure range range, the outdoor fan is third working speed.
7. the cold outdoor fan control method of indirect evaporation according to claim 6, which is characterized in that
It is described that corresponding working speed is obtained according to the condensing pressure of the compressor in the step S4 further include:
Obtain the rated speed N of the outdoor fanVolumeWith the maximum (top) speed N of the outdoor fanmax
First working speed is the rated speed NVolume, the third working speed is the maximum (top) speed Nmax, described Two working speeds and the rated speed NVolumeWith the maximum (top) speed NmaxIt is linear.
8. the cold outdoor fan control method of indirect evaporation according to claim 7, which is characterized in that
Second working speed and the rated speed NVolumeWith the maximum (top) speed NmaxLinear includes: described second Working speed meets following formula:
N=[(Nmax-NVolume)/(P2-P1)]·(P-P1)+NVolume
Wherein N is the second working speed, and P is current condensing pressure, P1For the maximum value of first pressure interval range, P2For institute State the minimum value of third pressure range range.
9. a kind of cold outdoor fan regulating device of indirect evaporation characterized by comprising
First temperature acquisition module, for obtaining the corresponding outdoor temperature of the outdoor fan;
Control module, for the starting revolving speed of the outdoor fan to be arranged according to the outdoor temperature;
Second temperature obtains module, for obtaining the supply air temperature of indoor fan corresponding with the outdoor fan;
Judgment module, for confirming whether the supply air temperature meets setting value;
The control module is also used to that the work of the outdoor fan is arranged when the judging result of the judgment module is certainly Revolving speed;
The control module is also used to open corresponding with the outdoor fan when the judging result of the judgment module is negates Compressor;
Condensing pressure obtains module, for obtaining the condensing pressure of the compressor when compressor is opened;
The control module is also used to obtain corresponding working speed according to the condensing pressure of the compressor.
10. the cold outdoor fan regulating device of indirect evaporation according to claim 9, which is characterized in that the indirect evaporation Cold outdoor fan regulating device further includes the first memory module;
First memory module be used for store the outdoor temperature temperature range range and with the temperature range range pair The starting revolving speed answered;And/or
The cold outdoor fan regulating device of indirect evaporation further includes the second memory module;
Second memory module be used for store the compressor condensing pressure interval range and with the pressure range range Corresponding working speed.
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CN114279056A (en) * 2021-12-29 2022-04-05 青岛海信日立空调系统有限公司 Machine room air conditioner

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CN114234505A (en) * 2021-12-20 2022-03-25 珠海格力电器股份有限公司 Control method and device of refrigerating unit, refrigerating unit and storage medium
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Denomination of invention: A Control Method and Device for Indirect Evaporative Cooling Outdoor Fan

Effective date of registration: 20230925

Granted publication date: 20200922

Pledgee: Societe Generale Bank Limited by Share Ltd. Shenzhen branch

Pledgor: SHENZHEN ITEAQ NETWORK POWER TECHNOLOGY Co.,Ltd.

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