CN103105023A - Fan speed control for precision cooling of air-cooled condenser - Google Patents
Fan speed control for precision cooling of air-cooled condenser Download PDFInfo
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- CN103105023A CN103105023A CN2011103594489A CN201110359448A CN103105023A CN 103105023 A CN103105023 A CN 103105023A CN 2011103594489 A CN2011103594489 A CN 2011103594489A CN 201110359448 A CN201110359448 A CN 201110359448A CN 103105023 A CN103105023 A CN 103105023A
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
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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
- 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
- F25B49/027—Condenser control arrangements
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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
- F25B2600/00—Control issues
- F25B2600/11—Fan speed control
- F25B2600/111—Fan speed control of condenser fans
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2106—Temperatures of fresh outdoor air
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- 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
Abstract
The invention relates to fan speed control for precision cooling of an air-cooled condenser. An air conditioner system comprises a condenser fan, an ambient temperature sensor, a refrigerant pressure sensor and a controller. The ambient temperature sensor is used for sensing and measuring ambient temperature of the air conditioner system. The refrigerant pressure sensor is used for sensing and measuring pressure of refrigerant of the air conditioner system. A target refrigerant pressure module is used for identifying optimal pressure of the refrigerant of the air conditioner system. The controller is used for generating output information which represents the speed of the condenser fan. The condenser fan is used for maintaining the pressure of the refrigerant at about the optimal pressure along the ambient temperature change of the air conditioner system in an operable mode.
Description
Technical field
The disclosure relates to for the fan speed of air-cooled condenser to be controlled.
Background technology
This part provides the background information relevant with the disclosure, but prior art not necessarily.
Cooling system such as the type of using steam compression cycle can comprise compressor, condenser, expansion gear and evaporimeter.Compressor can operate for the working fluid that will be supplied to condenser or cold-producing medium and be compressed to blowdown presssure from suction pressure.In condenser, heat is removed from cold-producing medium, and cold-producing medium is in the pressure of rising simultaneously.Cold-producing medium flows through expansion gear from condenser, and wherein pressure is reduced.Cold-producing medium flows through evaporimeter therefrom, and wherein heat is added and the temperature of cold-producing medium increases.Cold-producing medium flow to compressor from evaporimeter, and this process begins again.
Condenser can be air-cooled condenser, and wherein, fan can be used to supply the air-flow on condenser, to be conducive to heat extraction from flow through cold-producing medium wherein.In the cooling system of these types, current control method relates to condensing pressure (pressure of the cold-producing medium in condenser place/condenser) is maintained value fixing and that raise, to allow the appropriate function of expansion valve.Fixing condensing pressure is minimum condensing pressure.For example, as nonrestrictive example, as R407C when the cold-producing medium, condensing pressure can maintain approximate 220PSIG or more than.By adjusting the operation of condenser, condensing pressure can maintain fixing lift-off value or more than.For example, use variable-frequency drive or fan speed to control, can adjust supply by the speed of the fan of the air-flow of condenser, to keep the condensing pressure of fixing rising.By adjusting inlet valve, pressure head control valve or in order to reducing other device of air-cooled condenser effectiveness, condensing pressure also can maintain fixing lift-off value or more than.
Yet, especially during colder environmental aspect, by condenser fan being maintained the speed higher than necessity, so just condensing pressure is maintained than satisfying the low value of the necessary value of cooling load, the pattern of these operations may be wasted compressor energy (lowering efficiency).In addition, when the fan speed that is used for air-cooled condenser increased to keep minimum condensing pressure, the noise that fan generates may be excessively.Excessive noise may need to use extra sound insulation or quieter material, noise is maintained acceptable level.
Therefore, a kind of cooling system and method for operating of using air-cooled condenser advantageously is provided, it can reduce the waste (increase efficient) of compressor energy and/or reduce the noise that cooling system generates, and reduces cold-producing medium and injects, and reduce system weight.Can be to the needs of efficient with carry out the flexible approach of balance between to the hope of quiet operation if the method allows, can be further favourable.Also can be advantageously, the temperature of cold-producing medium firmly is maintained to different environment temperatures.
Summary of the invention
This part provides General Introduction of the present disclosure, rather than its four corner or its whole features is comprehensively open.
This instruction provides a kind of air conditioner system, and this air conditioner system comprises condenser fan, environment temperature sensor, refrigerant pressure sensor and controller.Environment temperature sensor is used for the residing environment temperature of sensing system.Refrigerant pressure sensor is used for the pressure of the cold-producing medium of sensing system.Target refrigerant pressure module is used for the optimum pressure of the cold-producing medium of recognition system.Controller is used for generating the output of the speed that represents condenser fan, and described condenser fan can operate for along with the variation of ambient temperature of system, the pressure of cold-producing medium being maintained about optimum pressure.
This instruction also provides a kind of air conditioner system, and this air conditioner system comprises compressor, condenser fan, environment temperature sensor, refrigerant temperature sensors, target refrigerant temperature module and controller.Environment temperature sensor is used for the residing environment temperature of sensing system.Refrigerant temperature sensors is used for the temperature of the cold-producing medium of sensing system.Target refrigerant temperature module is used for the Optimal Temperature of the cold-producing medium of recognition system.Controller is used for generating the output of the speed that represents condenser fan, and described condenser fan can operate for the temperature with cold-producing medium and maintain about Optimal Temperature.
It is a kind of for control the method for the condenser fan of air conditioner system with controller that this instruction further provides.The method comprises that the compressor of determining air conditioner system is connect or disconnect.The method further comprises: when compressor is connected, make the condenser fan running of air conditioner system with the First Speed corresponding to the environment temperature of sensing in the predetermined time section.The method also comprises: after predetermined time, section was expired, make the condenser fan running with second speed, described second speed is determined based on the environment temperature of sensing and at the refrigerant pressure of sensing and the error between the target refrigerant pressure by controller.Second speed is enough to the refrigerant pressure of sensing is moved to the target refrigerant pressure.
It is a kind of for control the method for the condenser fan of air conditioner system with controller that this instruction also provides.The method comprises: during less than the first pre-customized refrigerant temperature, condenser fan is stopped when the refrigerant temperature of sensing.The method also comprises: when the refrigerant temperature of sensing during more than or equal to the first pre-customized refrigerant temperature and less than the second pre-customized refrigerant temperature, make the condenser fan running with scheduled being used for corresponding to the First Speed of the environment temperature of sensing.The method further comprises: when the refrigerant temperature of sensing during more than or equal to the second pre-customized refrigerant temperature and less than the 3rd pre-customized refrigerant temperature, be used for corresponding to the environment temperature of sensing and make the condenser fan running based on the refrigerant temperature of sensing and the second speed of the error between the target refrigerant temperature with scheduled, described second speed is enough to the refrigerant temperature of sensing is moved to the target refrigerant temperature.The method further comprises: when the refrigerant temperature of sensing more than or equal to than larger the 3rd pre-customized refrigerant temperature of the second pre-customized refrigerant temperature the time, to make the condenser fan running based on the refrigerant temperature of sensing and the third speed of the error between the target refrigerant temperature, described third speed is enough to the refrigerant temperature of sensing is moved to the target refrigerant temperature.
From the description that provides at this, further the applicability aspect will become obvious.Description in this general introduction and specific examples purpose be just in order to illustrate, rather than plan restriction the scope of the present disclosure.
Description of drawings
Accompanying drawing purpose described here is embodiment rather than the whole possible embodiment in order to illustrate to select just, and is not intended to limit the scope of the present disclosure.
Fig. 1 is the block diagram that illustrates according to the cooling system of this instruction;
Fig. 2 is the functional block diagram of control system that illustrates the cooling system of Fig. 1;
Fig. 3 is the flow chart for the control method of the condenser fan of cooling system;
Fig. 4 is the functional block diagram of another control system that illustrates the cooling system of Fig. 1;
Fig. 5 is the flow chart for another control method of the condenser fan of cooling system; And
Fig. 6 has been to provide the flow chart about the additional detail of the control method of Fig. 5.
Run through the several views in accompanying drawing, the corresponding part of corresponding label indication.
The specific embodiment
With reference now to accompanying drawing, example embodiment is described more fully.
The disclosure provides example embodiment, so that will thoroughly and will convey to those skilled in the art with scope fully.Set forth numerous specific detail, such as the example of particular elements, apparatus and method, so that the thorough understanding to embodiment of the present disclosure to be provided.Will be apparent that to those skilled in the art, not need to use specific details, can come in many different forms exemplifying embodiment embodiment, and should not be interpreted as limiting the scope of the present disclosure.In some example embodiment, do not describe well-known process, well-known apparatus structure and well-known technology in detail.
Usually illustrated the general survey according to the cooling system of this instruction in Fig. 1 with label 10.Cooling system 10 comprises air-cooled condenser 12, expansion gear 14, evaporimeter 16 and compressor 18.Compressor 18 can operate for cold-producing medium or working fluid are compressed to blowdown presssure from suction pressure.Cold-producing medium from compressor 18 out and flows through condenser 12, expansion gear 14 and evaporimeter 16, then turns back to compressor 18.Within condenser 12, the air-flow by the condenser 12 of flowing through makes hot Q
1Remove from cold-producing medium.Provide air-flow by the fan 20 by motor 22 power supplies.Along with cold-producing medium passes expansion gear 14, the pressure drop of cold-producing medium.Within evaporimeter 16, hot Q
2Be passed to the cold-producing medium that flows through wherein.
With reference to figure 2, usually illustrated the exemplary control system of cooling system 10 with label 50 in addition.In the control system 50 of Fig. 2, controller 30 is illustrated as has the first controller configuration 30A (being referred to herein as controller 30A).Controller 30A comprises proportional-integral derivative controller (PID) module 52, the first functional module 54 and the second functional module 56.Switch 58 selects the output of self-controller 30A, and is such as described further on this.
In addition with reference to figure 3, the operation of description control system 50 now.After beginning frame 102 places initialized, system 50 determined that based on the compressor on/off state input that is received by controller 30A from compressor 18 compressor 18 is connect or disconnect at frame 104 places in system 50.If compressor is not connected, controller advances to frame 106 so, and condenser fan 20 is stopped with suitable speed running after 30 seconds.Controller 30A is then at frame 108 place's end operations.In different embodiment, control and turn back to frame 104 to monitor the on/off state of compressor 18.
If compressor is connected, controller 30A advances to frame 110 so, and at first switch 58 is set, and makes the output of controller 30A be generated by the second functional module 56.Based on the environment temperature by environment temperature sensor 26 sensings, the second functional module 56 generates the initial velocity that is used for motor 22, and resultant initial velocity for fan 20.Initial velocity in frame 110 places generation provides quick initial communication to controller 30A, this quick initial communication can arrange the speed of condenser fan 20 enough high, surpass the target refrigerant pressure with the refrigerant pressure that prevents sensing, thereby prevent that pressure from " overregulating ".
After the predetermined time section, controller 30A moves to frame 112 and switch 58 is set, and makes the output of controller 30A be generated by PID module 52.PID module 52 generates output based on two inputs.First input is generated based on the environment temperature of being observed by environment temperature sensor 26 by the first functional module 54, and comprises gain and parameter for PID module 52.Second input is the error between the target refrigerant pressure set point that generates by the refrigerant pressure of refrigerant pressure sensor 24 sensings with at module 34 places.The output of PID module 52 represents the speed for motor 22, thereby and expression be used for the speed of condenser fan 20, it is enough to the refrigerant pressure by refrigerant pressure sensor 24 sensings is taken to or almost takes to the target refrigerant pressure of module 34.Level and smooth transmission to be provided when exporting in order switching between the second functional module 56 and PID module 52 as controller 30A, to provide the ripple disable transmission between the selection output of PID module 52 and controller 30A, as shown in Figure 2.
As long as controller 30A detects compressor 18 and connects at frame 104 places, PID module 52 will generate output, this output is updated with the refrigerant pressure with 24 sensings of refrigerant pressure sensor and maintains or approximate maintain the target refrigerant pressure that module 34 is generated, and also includes the variation of the environment temperature of 26 sensings of environment temperature sensor in consideration simultaneously.For example input 32 in response to the user, controller 30A can be at frame 114 place's end operations.
With reference to figure 4, usually illustrated another exemplary control system of cooling system 10 with label 150 in addition.In the control system 150 of Fig. 4, controller 30 is illustrated as has second controller configuration 30B (being referred to herein as controller 30B).30A is the same with controller, and controller 30B comprises PID module 52, the first functional module 54 and the second functional module 56.Control system 150 further comprises the 3rd functional module 60, the first switch 62, second switch 64 and zero fan speed detector 66.Controller 30B can replace or add to controller 30A, for example as standby, with based on control the speed of condenser fan 20 as the refrigerant temperature of 28 sensings of refrigerant temperature sensors.
30A is the same with controller, controller 30B can be can operate for the individual module of the function of carry out describing, as shown the function that can carry out description a plurality of integration modules, the integration module of function that can carry out description and separate modular combination and/or can carry out one or more separate modular of the function of description.Therefore, as shown and as described in controller 30B be exemplary in essence, and do not plan to limit the scope of the present disclosure.For example, although controller 30B is described to comprise PID module 52, can comprise any suitable control module.
Controller 30B generates to the condenser fan speed of motor 22 outputs based on multiple different inputs.For example, compressor 18 provides the input of the on/off state of expression compressor to controller 30B at the first switch 62 places.Environment temperature sensor 26 provides the input of the environment temperature of expression sensing to the first functional module 54 and the second functional module 56.Refrigerant temperature sensors 28 provides the input of the refrigerant temperature of expression sensing to the 3rd functional module 60.The target refrigerant temperature (or set point) of input cold-producing medium from module 36 to controller 30B.Error between the refrigerant temperature of sensing and target refrigerant temperature is imported into PID module 52.Target refrigerant temperature (or set point) is based on for the optimization calculating of whole cooling system 10 and the predetermined temperature of efficient.As described here, by controlling the speed of motor 22 and condenser fan 20, even when environment temperature and various other environmental aspect variation, controller 30B also maintains target temperature with cold-producing medium.
In addition with reference to figure 5, the operation of description control system 150 now.After the 202 places initialization of beginning frame, controller 30B determines whether compressor 18 is connected in system 150.If compressor 18 is not connected, controller 30B advances to frame 206 so, and after as about 30 seconds, condenser fan 20 is stopped in the scheduled time of turning round at a predetermined velocity.Predetermined speed can be any suitable speed, such as the speed that is enough to provide standard operation.If controller 30B determines the compressor connection, controller 30B advances to frame 208 so.Otherwise controller 30B can or turn back to frame 204 at frame 224 place's end operations.In different embodiment, control and return to monitor that compressor 18 is connect or disconnect.
At frame 208 places, controller 30B reads input and accesses the 3rd functional module 60 from refrigerant temperature sensors 28, to determine that whether refrigerant temperature is more than or equal to for example 15 ℃ or other suitable preset temperature.If refrigerant temperature is not more than or equal to 15 ℃, controller 30B advances to frame 210 and generates output to stop motor 22 and condenser fan 20 so.If refrigerant temperature is more than or equal to 15 ℃, controller 30B advances to frame 212 so.Otherwise controller 30B can or turn back to frame 204 at frame 224 place's end operations.In different embodiment, control and return to monitor that compressor 18 is connect or disconnect.
At frame 212 places, controller 30B reads input and accesses the 3rd functional module 60 from refrigerant temperature sensors 28, to determine that whether refrigerant temperature is more than or equal to for example 25 ℃ or other suitable preset temperature.If refrigerant temperature is not more than or equal to 25 ℃, controller 30B advances to frame 214 so.At frame 214, controller 30B accesses the second functional module 56, and this second functional module 56 comprises the environment temperature table that has based on the preset speed that is used for condenser fan 20 of environment temperature.Controller 30B uses the second functional module 56 generating the output towards motor 22, in order to make condenser fan 20 runnings with the preset speed based on the environment temperature table defined of the environment temperature of 26 sensings of environment temperature sensor.If refrigerant temperature is more than or equal to 25 ℃, controller 30B advances to frame 216 so.Otherwise controller 30B can or turn back to frame 204 at frame 224 place's end operations.In different embodiment, control and return to monitor that compressor 18 is connect or disconnect.
At frame 216 places, controller 30B reads input and accesses the 3rd functional module 60 from refrigerant temperature sensors 28, to determine that whether refrigerant temperature is more than or equal to for example 35 ℃ or other suitable preset temperature.If refrigerant temperature is not more than or equal to 35 ℃, controller 30B advances to frame 218 so.At frame 218, generate to the fan speed of motor 22 outputs, this fan speed has been inserted based on the fan speed of the control of being undertaken by PID module 52 with by the fan speed of the environment temperature table regulation of the second functional module 56.If refrigerant temperature is more than or equal to 35 ℃, controller 30B advances to frame 220 so.Otherwise controller 30B can or turn back to frame 204 at frame 224 place's end operations.In different embodiment, control and return to monitor that compressor 18 is connect or disconnect.
At frame 220 places, controller 30B generates to the fan speed of motor 22 outputs with PID module 52.Describe with reference to figure 6 frame 220 of controlling the speed of condenser fan 20 with PID module 52 in detail in addition.
Within frame 220, controller 30B advances to frame 230 and accesses the first functional module 54, with loading PID gain constant from the environment temperature table of the second functional module 56, and carries out gain schedulings for PID module 52.At frame 232, controller 30B determines based on the output of zero fan speed detector 66 whether the speed of condenser fan 20 is zero.If speed is zero, controller advances to frame 234 so.At frame 234 places, controller 30B is based on determine the initial velocity of fan 20 at the gain scheduling of frame 230 places execution.If the 232 controller 30B of place determine that fan speed is non-vanishing at frame, controller 30B walks around frame 234 so.
At frame 236 places, controller 30B record is used for the present speed of the fan 20 of ripple disable transmission.At frame 238 places, controller 30B had both read the refrigerant temperature of sensing based on the input that receives from refrigerant temperature sensors 28, read target refrigerant temperature (set point) from module 36 again.Difference or error between the refrigerant temperature of sensing and target refrigerant temperature are imported into PID module 52.Based on this error, PID module 52 is in frame 240 places calculating output.This output has represented the speed of motor 22 and resultant fan 20, and this speed is enough to take the refrigerant temperature of 28 sensings of sensor to target refrigerant temperature that module 36 provides.After frame 240 places generation output, controller 30B can or turn back to frame 204 at frame 224 places (Fig. 5) end operation.In different embodiment, control and return to monitor that compressor 18 is connect or disconnect.
So, how many environment temperatures of tube sensor 26 sensings is not, and control system 150 always maintains refrigerant temperature the target refrigerant temperature.This mixing is controlled can utilize temperature sensor cheaply, as change the thermistor of resistance along with temperature, the pressure sensor that replaces the condensator outlet place to be controlling condenser fan speed, and can use independently or when pressure sensor 25 fault as standby.
For the purpose of illustrating and describing provides aforementioned description to embodiment.Do not plan exhaustive or the restriction disclosure.Individual component in specific embodiment or feature usually are not limited to this specific embodiment, but in the situation that applicable interchangeable, and can be used in the embodiment of selection, even without illustrating especially or describing.Same situation also can change with many modes.Such change is not considered to deviate from the disclosure, but all such modifications all will comprise within the scope of the present disclosure.
Claims (17)
1. air conditioner system comprises:
Condenser fan;
Environment temperature sensor is used for the residing environment temperature of the described system of sensing;
Refrigerant pressure sensor is used for the pressure of the cold-producing medium of sensing described system;
Target refrigerant pressure module is for the optimum pressure of the described cold-producing medium of identifying described system; And
Controller is used for generating the output of the speed that represents described condenser fan, and described condenser fan can operate for along with the variation of ambient temperature of described system, the pressure of described cold-producing medium being maintained about optimum pressure.
2. air conditioner system according to claim 1, wherein, described controller comprises:
Functional module is used for generating the described output of described controller.
3. air conditioner system according to claim 1, wherein, described controller comprises:
The PID module is used for generating the described output of described controller.
4. air conditioner system according to claim 1, wherein, described output comprises:
The first output, its functional module by described controller generates; And
The second output, its PID module by described controller generates, and when predetermined time, section was expired, generates described the second output after described the first output.
5. air conditioner system according to claim 1, wherein, when the compressor of described system was not activated, described controller generated the output that described condenser fan is stopped.
6. air conditioner system comprises:
Compressor;
Condenser fan;
Environment temperature sensor is used for the residing environment temperature of the described system of sensing;
Refrigerant temperature sensors is used for the temperature of the cold-producing medium of sensing described system;
Target refrigerant temperature module is for the Optimal Temperature of the described cold-producing medium of identifying described system; And
Controller is used for generating the output of the speed that represents described condenser fan, and described condenser fan can operate for the temperature with described cold-producing medium and maintain about Optimal Temperature.
7. air conditioner system according to claim 6, wherein, when receiving the input that the described compressor of expression not have to connect, described controller generation stopped described condenser fan within about 30 seconds output.
8. air conditioner system according to claim 6, wherein, after described controller received the input of the described compressor connection of expression, if the temperature of described cold-producing medium does not have more than or equal to 15 ℃, described controller generated the output that described condenser fan is stopped.
9. air conditioner system according to claim 6, wherein, after described controller receives the input of the described compressor connection of expression, if but the temperature of described cold-producing medium is not more than or equal to 15 ℃ more than or equal to 25 ℃, described controller generates basis and makes the output of described condenser fan running based on the preset speed of the environment temperature of sensing.
10. air conditioner system according to claim 6, wherein, after described controller receives the input of the described compressor connection of expression, if but the temperature of described cold-producing medium is more than or equal to 25 ℃ more than or equal to 35 ℃, described controller generates the output that makes described condenser fan running according to the output based on the PID module of the preset speed of the environment temperature of sensing and described controller.
11. a method that is used for controlling with controller the condenser fan of air conditioner system comprises:
The compressor of determining described air conditioner system is connect or disconnect;
When described compressor is connected, make within a predetermined period of time the condenser fan running of described air conditioner system with the First Speed corresponding to the environment temperature of sensing; And
After described predetermined amount of time expires, make described condenser fan running with second speed, described second speed determined based on the described environment temperature of sensing and at the refrigerant pressure of sensing and the error between the target refrigerant pressure by described controller, and described second speed is enough to the described refrigerant pressure of sensing is moved to described target refrigerant pressure.
12. method according to claim 11 further comprises:
PID module with described controller is determined described second speed.
13. method according to claim 11 further comprises:
Make described condenser fan running with third speed, described third speed determined based on the described environment temperature of sensing and in the refrigerant temperature of sensing and the error between the target refrigerant temperature by described controller, and described third speed is enough to the described refrigerant temperature of sensing is moved to described target refrigerant temperature.
14. method according to claim 13 further comprises:
When only having described refrigerant temperature when sensing more than or equal to 35 ℃, just make described condenser fan running with described third speed.
15. a method that is used for controlling with controller the condenser fan of air conditioner system comprises:
During less than the first pre-customized refrigerant temperature, described condenser fan is stopped when the refrigerant temperature of sensing;
When the refrigerant temperature of sensing during more than or equal to the described first pre-customized refrigerant temperature and less than the second pre-customized refrigerant temperature, make described condenser fan running with scheduled being used for corresponding to the First Speed of the environment temperature of sensing;
When the refrigerant temperature of sensing during more than or equal to the described second pre-customized refrigerant temperature and less than the 3rd pre-customized refrigerant temperature, be used for corresponding to the environment temperature of sensing and make described condenser fan running based on the refrigerant temperature of sensing and the second speed of the error between the target refrigerant temperature with scheduled, described second speed is enough to the refrigerant temperature of sensing is moved to described target refrigerant temperature; And
When the refrigerant temperature of sensing more than or equal to than larger the 3rd pre-customized refrigerant temperature of the described second pre-customized refrigerant temperature the time, to make described condenser fan running based on the refrigerant temperature of sensing and the third speed of the error between the target refrigerant temperature, described third speed is enough to the refrigerant temperature of sensing is moved to described target refrigerant temperature.
16. method according to claim 15 further comprises:
The described first pre-customized refrigerant temperature is set to 15 ℃;
The described second pre-customized refrigerant temperature is set to 25 ℃; And
The described the 3rd pre-customized refrigerant temperature is set to 35 ℃.
17. method according to claim 15 further comprises:
Make described condenser fan running with the four-speed degree, described four-speed degree determined based on the described environment temperature of sensing and at the refrigerant pressure of sensing and the error between the target refrigerant pressure by described controller, and described four-speed degree is enough to the described refrigerant pressure of sensing is moved to described target refrigerant pressure.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110359448.9A CN103105023B (en) | 2011-11-14 | 2011-11-14 | Control for the fan speed of air-cooled condenser when accurately freezing |
| US13/490,820 US20130139529A1 (en) | 2011-11-14 | 2012-06-07 | Fan Speed Control For Air-Cooled Condenser In Precision Cooling |
| EP12192667.9A EP2597389A3 (en) | 2011-11-14 | 2012-11-14 | Fan speed control for air-cooled condenser in precision cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110359448.9A CN103105023B (en) | 2011-11-14 | 2011-11-14 | Control for the fan speed of air-cooled condenser when accurately freezing |
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| Publication Number | Publication Date |
|---|---|
| CN103105023A true CN103105023A (en) | 2013-05-15 |
| CN103105023B CN103105023B (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110359448.9A Active CN103105023B (en) | 2011-11-14 | 2011-11-14 | Control for the fan speed of air-cooled condenser when accurately freezing |
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| US (1) | US20130139529A1 (en) |
| CN (1) | CN103105023B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258304A (en) * | 2015-11-23 | 2016-01-20 | 广东美的制冷设备有限公司 | Low-temperature refrigeration control method, low-temperature refrigeration control device and air conditioner |
| CN105987550A (en) * | 2015-02-27 | 2016-10-05 | 开利公司 | Method for controlling condenser fan of refrigerating system |
| CN108444204A (en) * | 2018-04-08 | 2018-08-24 | 合肥美菱股份有限公司 | A kind of built-in refrigerator condensing heat-exchange control method |
| CN108603709A (en) * | 2016-02-03 | 2018-09-28 | 丹佛斯有限公司 | A method of the fan for controlling steam compression system according to variable temperature set point |
| CN111878440A (en) * | 2020-08-31 | 2020-11-03 | 一汽解放汽车有限公司 | Vehicle and rotation speed control method, device and system of electric control silicone oil fan of vehicle |
| CN112361682A (en) * | 2020-10-15 | 2021-02-12 | 珠海格力电器股份有限公司 | Water chilling unit control method and device and water chilling unit |
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| US9297567B2 (en) | 2009-01-30 | 2016-03-29 | National Refrigeration & Air Conditioning Canada Corp. | Condenser assembly with a fan controller and a method of operating same |
| US8011191B2 (en) | 2009-09-30 | 2011-09-06 | Thermo Fisher Scientific (Asheville) Llc | Refrigeration system having a variable speed compressor |
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| KR101677649B1 (en) * | 2014-12-23 | 2016-11-18 | 엘지전자 주식회사 | Refrigerator |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105987550A (en) * | 2015-02-27 | 2016-10-05 | 开利公司 | Method for controlling condenser fan of refrigerating system |
| CN105987550B (en) * | 2015-02-27 | 2021-04-09 | 开利公司 | Refrigeration system condenser fan control |
| CN105258304A (en) * | 2015-11-23 | 2016-01-20 | 广东美的制冷设备有限公司 | Low-temperature refrigeration control method, low-temperature refrigeration control device and air conditioner |
| CN108603709A (en) * | 2016-02-03 | 2018-09-28 | 丹佛斯有限公司 | A method of the fan for controlling steam compression system according to variable temperature set point |
| CN108603709B (en) * | 2016-02-03 | 2020-07-07 | 丹佛斯有限公司 | Method for controlling a fan of a vapour compression system according to a variable temperature set point |
| CN108444204A (en) * | 2018-04-08 | 2018-08-24 | 合肥美菱股份有限公司 | A kind of built-in refrigerator condensing heat-exchange control method |
| CN111878440A (en) * | 2020-08-31 | 2020-11-03 | 一汽解放汽车有限公司 | Vehicle and rotation speed control method, device and system of electric control silicone oil fan of vehicle |
| CN111878440B (en) * | 2020-08-31 | 2022-04-19 | 一汽解放汽车有限公司 | Vehicle and rotation speed control method, device and system of electric control silicone oil fan of vehicle |
| CN112361682A (en) * | 2020-10-15 | 2021-02-12 | 珠海格力电器股份有限公司 | Water chilling unit control method and device and water chilling unit |
Also Published As
| Publication number | Publication date |
|---|---|
| US20130139529A1 (en) | 2013-06-06 |
| CN103105023B (en) | 2016-03-16 |
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