CN112484248B - Air conditioner device control method and device and air conditioner - Google Patents
Air conditioner device control method and device and air conditioner Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 248
- 238000004378 air conditioning Methods 0.000 claims description 42
- 230000001276 controlling effect Effects 0.000 description 25
- 238000001704 evaporation Methods 0.000 description 4
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- 230000008569 process Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
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- 238000010438 heat treatment Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
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- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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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
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Abstract
The invention discloses an air conditioner control method and device and an air conditioner, and belongs to the field of air conditioner control.
Description
Technical Field
The present invention relates to the field of air conditioner control, and in particular, to an air conditioner control method and device, and an air conditioner.
Background
The air conditioning equipment can be used for indoor temperature regulation of office buildings and commercial places, and can also be used for temperature regulation of special occasions, such as breeding rooms, drying rooms and the like. When the special occasion is applied to the heating of air conditioning equipment, three problems exist: 1. the requirement for temperature control indoors is high, and quick response is required; 2. the outdoor environment range is wide, and the outdoor environment range can be applied in winter and summer; 3. the environment temperature is high, and the air conditioning device absorbs more heat of air and has high heating capacity. At the moment, the tail end has low heat dissipation due to high environmental temperature, and the actual load requirement is low. When the water temperature is high, the running condition of the air conditioning equipment is poor, and the reliability is low. Meanwhile, the problem that load output and terminal room load requirements are difficult to match commonly exists in the application process of the air conditioning equipment, and adjustment and control cannot be well carried out.
The operation load of the existing air conditioning device cannot be matched with the requirement of the tail end of the project in real time. When the operating load of the air conditioning device is smaller than the terminal requirement, the terminal requirement cannot be quickly responded; or when the load is too large to exceed the terminal requirement, the air conditioning device has the condition of large water inlet and outlet temperature difference and end temperature difference, the compressor operates beyond the range due to high evaporation and condensation temperature, or the water temperature cannot meet the terminal application due to rapid shutdown of the air conditioning equipment.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an air conditioner control method and device and an air conditioner, which aim to solve the problems that the operation load of the conventional air conditioner cannot be matched with the tail end requirement of a project in real time, and the tail end requirement cannot be quickly responded when the operation load of the air conditioner is smaller than the tail end requirement; or when the load is too large to exceed the terminal requirement, the air conditioning device has the problems that the temperature difference between inlet water and outlet water and the temperature difference between the end water and the inlet water are large, the compressor runs out of the range due to high evaporation and condensation temperatures, or the water temperature cannot meet the terminal application due to rapid shutdown of the air conditioning equipment.
The technical scheme adopted by the invention for solving the technical problems is as follows:
in a first aspect,
an air conditioner control method includes the steps of:
acquiring the tail end temperature and the outlet water temperature of the air conditioning device;
and controlling the working state of corresponding equipment according to the tail end temperature and the outlet water temperature, wherein the corresponding equipment comprises a variable frequency compressor, a variable frequency fan and a water pump.
Further, the controlling the working state of the corresponding device according to the terminal temperature and the outlet water temperature comprises:
judging whether the tail end temperature meets the requirement and whether the outlet water temperature is in a preset interval;
and controlling the working state of the corresponding equipment according to the judgment result.
Further, the controlling the working state of the corresponding device according to the judgment result includes:
and if the tail end temperature does not reach the requirement, the temperature of the outlet water is not increased and is smaller than the lower limit value of the preset interval, increasing the working frequency of the variable frequency compressor and reducing the water flow of the water pump so as to increase the temperature of the outlet water.
Further, still include:
and when the temperature of the outlet water begins to rise, increasing the water flow of the water pump according to the outlet water temperature.
Further, the increasing the water flow rate of the water pump includes:
when the ratio of the outlet water temperature to the lower limit value is less than or equal to 50%, controlling the water flow of the water pump to increase to 50% of the rated water flow for operation;
when the ratio of the outlet water temperature to the lower limit value is more than 50% and less than 95%, controlling the water flow of the water pump to be the ratio multiplied by the rated water flow;
and when the ratio of the outlet water temperature to the lower limit value is greater than or equal to 95% and less than or equal to 1, controlling the water flow of the water pump to be the rated water flow.
Further, the controlling the working state of the corresponding device according to the judgment result includes:
and if the tail end temperature does not meet the requirement and the outlet water temperature is in the preset interval, keeping the running state of the corresponding equipment unchanged.
Further, the controlling the working state of the corresponding device according to the judgment result includes:
if the tail end temperature does not reach the requirement and the water outlet temperature is larger than the upper limit value of the preset interval, reducing the frequency or the gear of the fan and improving the water flow of the water pump.
Further, the increasing the water flow rate of the water pump includes: and increasing the water flow of the water pump to be the ratio of the rated water flow multiplied by the water outlet temperature to the upper limit value.
Further, the controlling the working state of the corresponding device according to the judgment result includes:
and if the tail end temperature meets the requirement and the outlet water temperature is greater than the upper limit value of the preset interval, reducing the working frequency of the variable frequency compressor and/or reducing the working number of the variable frequency compressor.
Further, the controlling the working state of the corresponding device according to the judgment result includes:
and if the tail end temperature meets the requirement and the outlet water temperature is in the preset interval, keeping the working state of the corresponding equipment unchanged.
In a second aspect of the present invention,
an air conditioner control device comprising:
the temperature acquisition module is used for acquiring the tail end temperature and the outlet water temperature of the air conditioning device;
and the equipment control module is used for controlling the working state of corresponding equipment according to the tail end temperature and the outlet water temperature, and the corresponding equipment comprises a variable frequency compressor, a variable frequency fan and a water pump.
In a third aspect,
an air conditioner comprising: the control device according to the above-mentioned technical solution.
This application adopts above technical scheme, possesses following beneficial effect at least:
the technical scheme of the invention provides an air conditioner control method and device and an air conditioner.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a view illustrating an operation structure of a single system air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart of an air conditioner control method according to an embodiment of the present invention;
fig. 3 is a block diagram of an air conditioner control device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the technical solutions of the present invention is provided with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.
First, an operation configuration diagram of an air conditioner will be described, and an air conditioner of a single system will be described as an example, and as shown in fig. 1, the air conditioner includes: the system comprises a variable frequency compressor 101, a finned heat exchanger 102, a throttling device 103, a shell and tube heat exchanger 104 and a fan 105, wherein the fan is arranged near the finned heat exchanger and used for cooling the finned heat exchanger. When heating, the shell and tube heat exchanger provides hot water, and the hot water is connected with the engineering tail end and heats a room through the tail end. The water path system (not shown) is provided with a water pump (not shown) which is connected with the unit. Wherein, the water inlet of the shell and tube heat exchanger is provided with a water inlet temperature sensing bulb 106, and the water outlet is provided with a water outlet temperature sensing bulb 107. The temperature of the outlet water in the application is obtained by the outlet water temperature sensing bulb. The tip temperature is detected by a sensor provided additionally.
Referring to fig. 2, an embodiment of the present invention provides an air conditioner control method, including the following steps:
acquiring the tail end temperature and the outlet water temperature of an air conditioner;
and controlling the working state of corresponding equipment according to the tail end temperature and the outlet water temperature, wherein the corresponding equipment comprises a variable frequency compressor, a variable frequency fan and a water pump.
According to the control method of the air conditioner, the tail end temperature and the water outlet temperature of the air conditioner are firstly obtained, different working states of the variable frequency compressor, the variable frequency fan and the water pump are controlled according to different conditions of the tail end temperature and the water outlet temperature, and the stable and reliable operation of the air conditioner is guaranteed while the tail end temperature is reached by quickly responding to the tail end requirement.
As a supplementary explanation to the above embodiment, controlling the operation state of the respective devices according to the end temperature and the temperature of the outlet water includes:
judging whether the tail end temperature meets the requirement and whether the water outlet temperature is in a preset interval;
and controlling the working state of the corresponding equipment according to the judgment result.
Wherein, the working state of the corresponding equipment is controlled according to the judgment result, which comprises the following conditions:
1. and if the tail end temperature does not reach the requirement, the temperature of the outlet water is not increased and is smaller than the lower limit value of the preset interval, increasing the working frequency of the variable frequency compressor and reducing the water flow of the water pump so as to increase the temperature of the outlet water.
When the temperature of the outlet water begins to rise, the water flow of the water pump is increased according to the temperature of the outlet water.
As an optional implementation manner of the embodiment of the present invention, increasing the water flow rate of the water pump includes:
when the ratio of the water outlet temperature to the lower limit value is less than or equal to 50%, controlling the water flow of the water pump to increase to 50% of the rated water flow for operation;
when the ratio of the outlet water temperature to the lower limit value is more than 50% and less than 95%, controlling the water flow of the water pump to be the rated water flow multiplied by the ratio;
and when the ratio of the water temperature of the outlet water to the lower limit value is greater than or equal to 95% and less than or equal to 1, controlling the water flow of the water pump to be the rated water flow.
2. And if the tail end temperature does not reach the requirement and the outlet water temperature is in a preset interval, keeping the running state of the corresponding equipment unchanged. At the moment, the running state of the corresponding equipment is kept unchanged, the temperature of the outlet water can be continuously increased, and the tail end temperature is accelerated to meet the requirement as soon as possible.
3. If the tail end temperature does not reach the requirement and the outlet water temperature is larger than the upper limit value of the preset interval, reducing the frequency or the gear of the fan and improving the water flow of the water pump. Because the temperature of the outlet water exceeds the upper limit value of the preset interval, the temperature pressure in the air conditioning device is too high, the frequency or the gear of the fan is reduced, the temperature of the finned heat exchanger is increased, and the pressure of the air conditioning device is reduced. The reliability of the air conditioner is improved. After the water flow of the water pump is increased, the heat exchange of the tail end can be improved, and the temperature of the tail end can reach the requirement as soon as possible. Illustratively, the water pump water flow rate is increased to the rated water flow rate multiplied by the ratio of the outlet water temperature to the upper limit value.
4. And if the tail end temperature reaches the requirement and the outlet water temperature is greater than the upper limit value of the preset interval, reducing the working frequency of the variable frequency compressor and/or reducing the working number of the variable frequency compressor. It should be noted that, at this time, the frequency can be reduced, and the number of the variable frequency compressors to be operated can also be reduced, because the actual air conditioning apparatus includes not only a single-system structure but also a multi-system structure, and for the multi-system structure, there is more than one compressor, so the number of the compressors to be operated can be reduced. Meanwhile, sometimes, a building does not only contain one air conditioner, and when a plurality of air conditioners exist, the number of working compressors can be reduced.
5. And if the tail end temperature meets the requirement and the outlet water temperature is in a preset interval, keeping the working state of the corresponding equipment unchanged. The tail end temperature reaches the requirement, and the water outlet temperature is also in a preset interval, so that corresponding equipment does not need to be adjusted.
According to the air conditioner control method provided by the embodiment of the invention, the load output and the terminal load demand of the air conditioner are judged through the preset load prediction calculation model, the target of the terminal room temperature is assisted, and the operation of an air conditioning system and a water pump is controlled so as to adjust the operation load and the output water temperature of the air conditioner. The terminal load demand and the unit operation are regulated through control, the terminal application comfort is improved, the load of the air conditioning system is regulated, the energy consumption is reduced, the air conditioning operation condition is optimized, and the reliability of the air conditioning system is improved. When the end requirement is large, the water outlet temperature is increased, the end requirement is quickly met, and the end waiting and adjusting time is reduced. When the end requirement is small, the load output and the water flow of the air conditioning system are adjusted, the evaporation and condensation temperatures of the air conditioning equipment are reduced, and the pressure ratio of the press is reduced. The load output is stably provided even at high ambient temperatures without exceeding the compressor range or protection to ensure more stable and reliable operation of the air conditioning unit while meeting end use requirements.
In one embodiment, an embodiment of the present invention provides an air conditioner control device, as shown in fig. 3, including:
the temperature acquisition module 310 is used for acquiring the tail end temperature and the outlet water temperature of the air conditioner;
and the equipment control module 320 is used for controlling the working state of corresponding equipment according to the tail end temperature and the outlet water temperature, wherein the corresponding equipment comprises a variable frequency compressor, a variable frequency fan and a water pump.
The equipment control module is specifically used for judging whether the tail end temperature meets the requirement and whether the water outlet temperature is in a preset interval; and controlling the working state of the corresponding equipment according to the judgment result.
Specifically, if the tail end temperature does not reach the requirement, the temperature of the outlet water is not increased and is smaller than the lower limit value of the preset interval, the working frequency of the variable frequency compressor is increased, and the water flow of the water pump is reduced, so that the temperature of the outlet water is increased. When the temperature of the outlet water begins to rise, the water flow of the water pump is increased according to the temperature of the outlet water.
Illustratively, increasing the water flow rate of the water pump includes:
when the ratio of the water outlet temperature to the lower limit value is less than or equal to 50%, controlling the water flow of the water pump to increase to 50% of the rated water flow for operation;
when the ratio of the outlet water temperature to the lower limit value is more than 50% and less than 95%, controlling the water flow of the water pump to be the rated water flow multiplied by the ratio;
and when the ratio of the water temperature of the outlet water to the lower limit value is greater than or equal to 95% and less than or equal to 1, controlling the water flow of the water pump to be the rated water flow.
In some optional embodiments, if the terminal temperature does not reach the requirement and the outlet water temperature is within the preset interval, the equipment control module keeps the running state of the corresponding equipment unchanged.
In other optional embodiments, if the tail end temperature does not meet the requirement and the outlet water temperature is greater than the upper limit value of the preset interval, the equipment control module reduces the frequency or the gear of the fan and improves the water flow of the water pump. For example, increasing the water flow rate of the water pump includes: and increasing the water flow of the water pump to be the ratio of the rated water flow multiplied by the water outlet temperature to the upper limit value.
As an optional implementation manner of the embodiment of the present invention, if the temperature of the end reaches the requirement and the temperature of the outlet water is greater than the upper limit value of the preset interval, the operating frequency of the inverter compressor is reduced and/or the number of the inverter compressors is reduced.
In the actual control process, if the tail end temperature meets the requirement and the temperature of the outlet water is in a preset interval, the working state of the corresponding equipment is kept unchanged.
According to the control device of the air conditioning device provided by the embodiment of the invention, the temperature acquisition module acquires the tail end temperature and the outlet water temperature of the air conditioning device; the equipment control module controls the working state of corresponding equipment according to the tail end temperature and the water outlet temperature, and the corresponding equipment comprises a variable frequency compressor, a variable frequency fan and a water pump. The water outlet temperature and the terminal temperature respectively control the variable frequency compressor, the variable frequency fan and the water pump to change the working state under different conditions, the terminal requirement of the air conditioning device is quickly met, the terminal waiting time and the adjusting time are reduced, and meanwhile, the air conditioning device is more stable and reliable in operation.
In one embodiment, the present invention further provides an air conditioner, including the control device mentioned in the above embodiments.
Specifically, the actual outlet water temperature is set to be A, the outlet water temperature lower threshold value is set to be B, when the outlet water temperature A is lower than B, the load output of the air conditioning system does not meet the end load requirement, the output load of the air conditioning system is adjusted according to a preset load prediction calculation model, the frequency of a frequency conversion system is improved, and the load output is increased. The flow of the water pump is reduced and adjusted, the temperature difference of inlet and outlet water of the air conditioning device is improved, the temperature of the water entering a room is increased, the heat exchange of the room is improved, the temperature rise time of the room is shortened, and the using effect is improved.
Along with the rising of the water temperature, the flow of the water pump is gradually increased until reaching the rated flow so as to ensure the heat exchange and the efficiency of the air conditioning system.
And when the water temperature A of the outlet water is higher than B and is smaller than the upper threshold C of the water temperature of the outlet water, the load output and the end load demand of the air conditioning system enter a period of comparative stability. And controlling the operation frequency of the unit according to a preset load prediction calculation model, and properly adjusting the system load output so as to ensure the efficient and stable operation of the air conditioning system while meeting the end load requirement.
And when the temperature of the outlet water A is higher than C, the load output of the air conditioning system is greater than the end load requirement. According to a preset load prediction calculation model, the tail end temperature still does not meet the requirement at the moment, the frequency or the gear of a fan is reduced, the evaporation temperature is reduced, and the high water temperature output of the air conditioner is ensured as much as possible. Meanwhile, the water flow of the water pump is improved, the temperature difference of the heat exchange end is reduced, the condensing pressure of the air conditioning equipment is reduced, and the tail end heat exchange is improved. The tail end temperature reaches the requirement, the running frequency and the number of the compressors are adjusted, the load output of the air conditioner is reduced, the water temperature is reduced, and the high-efficiency running and the load output of the air conditioner are ensured.
Wherein, the control of the water flow of the water pump is specifically that when A is less than C,
A/B is less than or equal to 50%, and water flow is 50% F, wherein the water flow is F rated water flow.
A/B is more than 50 percent and less than 95 percent, the water flow is A/B and F, A/B is more than or equal to 95 percent and less than or equal to 105 percent, and the water flow is F.
When A is larger than C, the water flow rate is increased to A/C F.
And controlling to the end, wherein the outlet water temperature of the air conditioner is between B and C, and the tail end temperature meets the requirement.
According to the air conditioner provided by the embodiment of the invention, the load output and the terminal load demand of the air conditioning equipment are judged through the preset load prediction calculation model, the target of the terminal room temperature is assisted, and the operation of an air conditioning system and a water pump is controlled so as to adjust the operation load and the output water temperature of the air conditioning device. The air conditioning device can meet the requirements of the tail end quickly, and the air conditioning device can run more stably and reliably while the waiting and adjusting time of the tail end is reduced.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (8)
1. An air conditioner control method is characterized by comprising the following steps:
acquiring the tail end temperature and the outlet water temperature of the air conditioning device;
controlling the working state of corresponding equipment according to the tail end temperature and the outlet water temperature, wherein the corresponding equipment comprises a variable frequency compressor, a variable frequency fan and a water pump;
the controlling the working state of the corresponding equipment according to the tail end temperature and the outlet water temperature comprises the following steps:
judging whether the tail end temperature meets the requirement and whether the outlet water temperature is in a preset interval;
controlling the working state of the corresponding equipment according to the judgment result;
the controlling the working state of the corresponding device according to the judgment result comprises:
if the tail end temperature does not reach the requirement, the water outlet temperature is not increased and is smaller than the lower limit value of the preset interval, the working frequency of the variable frequency compressor is increased, and the water flow of the water pump is reduced, so that the water outlet temperature is increased;
further comprising:
when the outlet water temperature begins to rise, increasing the water flow of the water pump according to the outlet water temperature;
the increasing the water flow rate of the water pump includes:
when the ratio of the outlet water temperature to the lower limit value is less than or equal to 50%, controlling the water flow of the water pump to increase to 50% of the rated water flow for operation;
when the ratio of the outlet water temperature to the lower limit value is more than 50% and less than 95%, controlling the water flow of the water pump to be the ratio multiplied by the rated water flow;
and when the ratio of the outlet water temperature to the lower limit value is greater than or equal to 95% and less than or equal to 1, controlling the water flow of the water pump to be the rated water flow.
2. The method of claim 1, wherein: the controlling the working state of the corresponding device according to the judgment result comprises:
and if the tail end temperature does not meet the requirement and the outlet water temperature is in the preset interval, keeping the running state of the corresponding equipment unchanged.
3. The method of claim 1, wherein: the controlling the working state of the corresponding device according to the judgment result comprises:
if the tail end temperature does not reach the requirement and the water outlet temperature is larger than the upper limit value of the preset interval, reducing the frequency or the gear of the fan and improving the water flow of the water pump.
4. The method of claim 3, wherein: the water flow of the water pump is increased by: and increasing the water flow of the water pump to be the ratio of the rated water flow multiplied by the water outlet temperature to the upper limit value.
5. The method of claim 1, wherein: the controlling the working state of the corresponding device according to the judgment result comprises:
and if the tail end temperature meets the requirement and the outlet water temperature is greater than the upper limit value of the preset interval, reducing the working frequency of the variable frequency compressor and/or reducing the working number of the variable frequency compressor.
6. The method of claim 1, wherein: the controlling the working state of the corresponding device according to the judgment result comprises:
and if the tail end temperature meets the requirement and the outlet water temperature is in the preset interval, keeping the working state of the corresponding equipment unchanged.
7. An air conditioner control device, comprising:
the temperature acquisition module is used for acquiring the tail end temperature and the outlet water temperature of the air conditioning device;
the equipment control module is used for controlling the working state of corresponding equipment according to the tail end temperature and the outlet water temperature, and the corresponding equipment comprises a variable frequency compressor, a variable frequency fan and a water pump;
the controlling the working state of the corresponding equipment according to the tail end temperature and the outlet water temperature comprises the following steps: judging whether the tail end temperature meets the requirement and whether the outlet water temperature is in a preset interval; controlling the working state of the corresponding equipment according to the judgment result;
the controlling the working state of the corresponding device according to the judgment result comprises: if the tail end temperature does not reach the requirement, the water outlet temperature is not increased and is smaller than the lower limit value of the preset interval, the working frequency of the variable frequency compressor is increased, and the water flow of the water pump is reduced, so that the water outlet temperature is increased;
further comprising: when the outlet water temperature begins to rise, increasing the water flow of the water pump according to the outlet water temperature;
the increasing the water flow rate of the water pump includes: when the ratio of the outlet water temperature to the lower limit value is less than or equal to 50%, controlling the water flow of the water pump to increase to 50% of the rated water flow for operation; when the ratio of the outlet water temperature to the lower limit value is more than 50% and less than 95%, controlling the water flow of the water pump to be the ratio multiplied by the rated water flow; and when the ratio of the outlet water temperature to the lower limit value is greater than or equal to 95% and less than or equal to 1, controlling the water flow of the water pump to be the rated water flow.
8. An air conditioner, comprising: the control device of claim 7.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011141072A (en) * | 2010-01-06 | 2011-07-21 | Hitachi Plant Technologies Ltd | Cooling system and cooling method |
| CN107514755A (en) * | 2017-08-30 | 2017-12-26 | 珠海格力电器股份有限公司 | Water pump start-stop control method of air conditioning system and air conditioning system |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6079507B2 (en) * | 2013-08-29 | 2017-02-15 | 三菱電機株式会社 | Hot / cold water air conditioning system |
| CN104596040A (en) * | 2015-02-04 | 2015-05-06 | 珠海格力电器股份有限公司 | Water pump control method and system for air conditioner cooling system and household central air conditioner |
| CN105258289B (en) * | 2015-10-15 | 2018-04-17 | 珠海格力电器股份有限公司 | Method, device and system for controlling operation of compressor |
| CN106766365A (en) * | 2016-11-28 | 2017-05-31 | 广东美的暖通设备有限公司 | Frequency conversion air-cooled heat pump water chiller-heater system and its control method and air-conditioning |
| CN107238174B (en) * | 2017-05-27 | 2019-11-08 | 珠海格力电器股份有限公司 | Method and device for controlling frequency of compressor |
| CN107514731A (en) * | 2017-07-03 | 2017-12-26 | 青岛海尔空调电子有限公司 | The frequency conversion fan control method and air conditioner of handpiece Water Chilling Units |
| CN108800423A (en) * | 2018-05-25 | 2018-11-13 | 珠海格力电器股份有限公司 | Air conditioner control method and device and air conditioner adopting method |
| CN109237713B (en) * | 2018-09-25 | 2020-06-09 | 珠海格力电器股份有限公司 | Water multi-connected unit operation control method and device, medium and water multi-connected air conditioning system |
| CN109812949B (en) * | 2019-02-22 | 2021-05-04 | 广东欧科空调制冷有限公司 | Load control method and device of multi-compressor unit and air conditioner |
| CN109945433A (en) * | 2019-03-20 | 2019-06-28 | 珠海格力电器股份有限公司 | Temperature control method and air conditioner |
| CN110608476A (en) * | 2019-09-16 | 2019-12-24 | 珠海格力电器股份有限公司 | Control method, device and equipment of compressor and water multi-connected air conditioning system |
| CN110906509A (en) * | 2019-10-23 | 2020-03-24 | 广东申菱环境系统股份有限公司 | Heating, ventilating and air conditioning system and control method thereof |
-
2020
- 2020-11-02 CN CN202011205076.XA patent/CN112484248B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011141072A (en) * | 2010-01-06 | 2011-07-21 | Hitachi Plant Technologies Ltd | Cooling system and cooling method |
| CN107514755A (en) * | 2017-08-30 | 2017-12-26 | 珠海格力电器股份有限公司 | Water pump start-stop control method of air conditioning system and air conditioning system |
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