CN110657548B - Temperature controller, fan coil air conditioning system and control method of fan coil air conditioning system - Google Patents
Temperature controller, fan coil air conditioning system and control method of fan coil air conditioning system Download PDFInfo
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- CN110657548B CN110657548B CN201910974367.6A CN201910974367A CN110657548B CN 110657548 B CN110657548 B CN 110657548B CN 201910974367 A CN201910974367 A CN 201910974367A CN 110657548 B CN110657548 B CN 110657548B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 238000001816 cooling Methods 0.000 claims abstract description 27
- 230000001960 triggered effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- BKUKXOMYGPYFJJ-UHFFFAOYSA-N 2-ethylsulfanyl-1h-benzimidazole;hydrobromide Chemical group Br.C1=CC=C2NC(SCC)=NC2=C1 BKUKXOMYGPYFJJ-UHFFFAOYSA-N 0.000 claims 1
- 238000011217 control strategy Methods 0.000 abstract description 5
- 230000001276 controlling effect Effects 0.000 description 20
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000013486 operation strategy Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
-
- 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
- F24F11/84—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 valves
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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
- F24F11/88—Electrical aspects, e.g. circuits
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
- Central Air Conditioning (AREA)
Abstract
The application provides a temperature controller, a fan coil air conditioning system and a control method thereof. The temperature controller comprises a main control board, a mode switching module, a fan wind speed control module and a water cooling control module, wherein the mode switching module, the fan wind speed control module and the water cooling control module are all connected to the main control board, and the fan wind speed control module and the water cooling control module are controlled in a linkage way by the main control board. According to the temperature controller, linkage control of water side heat exchange and wind side heat exchange can be realized, the temperature control strategy is adjusted according to the requirement, the temperature adjustment precision is effectively improved, and the operation energy efficiency of an air conditioning system is improved.
Description
Technical Field
The application relates to the technical field of air conditioning, in particular to a temperature controller, a fan coil air conditioning system and a control method thereof.
Background
The traditional vertical open-air tray adopts simple temperature controller control, has the functions of mode switching (refrigeration, heating, air supply and dehumidification), fan air speed control (high speed, medium speed and low speed), temperature setting and startup and shutdown, is used as a part of a fan coil air conditioning system, controls a two-way or three-way valve and a fan with multi-stage air speed, and has simple functions.
However, the existing temperature controller only adjusts according to indoor temperature, only focuses on wind side heat exchange control, only can control water valve switch for water side heat exchange, has low adjusting precision and poor running energy efficiency of an air conditioning system.
Disclosure of Invention
Therefore, the technical problem to be solved by the application is to provide a temperature controller, a fan coil air conditioning system and a control method thereof, which can realize linkage control of water side heat exchange and wind side heat exchange, adjust a temperature control strategy according to requirements, effectively improve temperature adjustment precision and improve operation energy efficiency of the air conditioning system.
In order to solve the problem, the application provides a temperature controller, including main control board, mode switch module, fan wind speed control module and water-cooling control module all are connected to the main control board, and fan wind speed control module and water-cooling control module carry out coordinated control by the main control board.
Preferably, the water cooling control module comprises a first temperature sensor interface and a second temperature sensor interface, wherein the first temperature sensor interface is used for being connected with a first temperature sensor, the second temperature sensor interface is used for being connected with a second temperature sensor, the first temperature sensor is used for detecting the temperature of the cold water coil, and the second temperature sensor is used for detecting the temperature of the hot water coil.
Preferably, the mode switching module comprises a knob dial switch, the knob dial switch comprises a first dial bit, a second dial bit and a third dial bit, the first dial bit is a temperature point fan stop selection bit, the second dial bit is a temperature point water stop valve dial bit, and the third dial bit is a temperature point automatic wind speed operation dial bit.
Preferably, the main control board comprises a weak current board and a strong current board, the temperature controller further comprises a display board, a panel and a bottom shell, the display board is arranged on the panel, the panel cover is arranged on the bottom shell, and the weak current board and the strong current board are integrally arranged in an installation space formed by the panel and the bottom shell.
According to another aspect of the present application, there is provided a fan coil air conditioning system, comprising a thermostat, the thermostat being the thermostat described above.
Preferably, the fan coil air conditioning system further comprises an open air tray, and the temperature controller is arranged in the open air tray.
According to another aspect of the present application, there is provided a control method of the fan coil air conditioning system, including:
acquiring an indoor environment temperature T ring and a set temperature T;
and comparing the T ring with the T set, and adjusting the rotating speed of the fan and the opening of the water valve according to the comparison result.
Preferably, the step of comparing the T ring with the T setting and adjusting the fan rotation speed and the water valve opening according to the comparison result includes:
when the T ring is less than or equal to T set-e, controlling the high-grade operation of the fan, controlling the water valve to be fully opened, and recording the operation time T1;
when T is equal to or less than T ring is equal to or less than g, controlling the middle gear of the fan to operate, controlling the water valve to be fully opened, and recording the operation time T2;
when T is set to be less than or equal to T and less than or equal to T is set to be less than or equal to T, controlling the low-gear operation time T3 of the fan, and controlling the water valve to circulate in a mode of starting time T4 and stopping time T5;
wherein t3= (Δt1+Δt2×t2)/(Δt1+Δt2), and T1 is the fan top-grade operation time; t2 is the middle-gear running time of the fan; delta T1 is the high-grade operation temperature difference of the fan; delta T2 is the mid-range operating temperature difference of the fan.
Preferably, the step of controlling the fan coil air conditioning system according to the operating state of the fan coil air conditioning system comprises:
detecting the dialing position of a knob dialing switch;
and controlling the fan coil air conditioning system to be in a temperature point fan stopping state, a temperature point water stopping valve and a temperature point automatic wind speed running state according to the dial position of the knob dial switch.
Preferably, the control method further includes:
acquiring the running state of a fan coil air conditioning system;
when the fan coil air conditioning system is in a shutdown state, detecting whether a parameter setting program is triggered;
when the parameter setting program is triggered, entering a secondary menu setting interface;
and setting a cold air protection value and a hot air protection value.
Preferably, tsagainst cold air=32 to 35 ℃, tsagainst hot air=25 to 28 ℃.
The utility model provides a temperature controller, including main control board, mode switch module, fan wind speed control module and water-cooling control module all are connected to the main control board, and fan wind speed control module and water-cooling control module carry out coordinated control by the main control board. The mode switching module, the fan wind speed control module and the water cooling control module are controlled by the main control board, so that the linkage control of the water cooling control module and the fan wind speed control module can be realized through the temperature controller, the coupling control of the fan wind speed control module and the water cooling control module is conveniently realized, the temperature control strategy can be adjusted as required, the fine control of the temperature is realized, the temperature control precision is effectively improved, and the operation energy efficiency of an air conditioning system is improved.
Drawings
FIG. 1 is an exploded view of a thermostat according to an embodiment of the present application;
FIG. 2 is a schematic view of a control panel of a thermostat according to an embodiment of the present application;
fig. 3 is a schematic structural view of an open-mounted wind disc according to an embodiment of the present application;
fig. 4 is a control schematic diagram of a fan coil air conditioning system according to an embodiment of the present application.
The reference numerals are expressed as:
1. a display panel; 2. a panel; 3. a weak current plate; 4. a strong current plate; 5. a bottom case; 6. a first temperature sensor interface; 7. a second temperature sensor interface; 8. a knob dial switch; 9. an open air disk; 10. and a temperature controller.
Detailed Description
Referring to fig. 1 to 3, according to the embodiment of the present application, a temperature controller 10 includes a main control board, a mode switching module, a fan wind speed control module and a water cooling control module, wherein the mode switching module, the fan wind speed control module and the water cooling control module are all connected to the main control board, and the fan wind speed control module and the water cooling control module are controlled by the main control board in a linkage manner.
The temperature controller 10 controls the mode switching module, the fan wind speed control module and the water cooling control module by the main control board, so that the linkage control of the water cooling control module and the fan wind speed control module can be realized through the temperature controller 10, the coupling control of the fan wind speed control module and the water cooling control module is conveniently realized, the temperature control strategy can be adjusted as required, the fine control of the temperature is realized, the temperature control precision is effectively improved, and the operation energy efficiency of an air conditioning system is improved.
The water cooling control module comprises a first temperature sensor interface 6 and a second temperature sensor interface 7, wherein the first temperature sensor interface 6 is used for being connected with a first temperature sensor, the second temperature sensor interface 7 is used for being connected with a second temperature sensor, the first temperature sensor is used for detecting the temperature of a cold water coil, and the second temperature sensor is used for detecting the temperature of a hot water coil.
The water cooling control module has been increased in this application to water cooling control module includes first temperature sensor interface 6 and second temperature sensor interface 7, when adopting this temperature controller 10, can be connected first temperature sensor interface and first temperature sensor with this temperature controller 10, second temperature sensor interface 7 is connected with second temperature sensor, thereby can directly acquire the temperature of cold water coil pipe and hot water coil pipe in the course of the work, not only more conveniently control the coil pipe temperature, and can judge whether fan coil pipe air conditioning system is two regulations or four regulations that adopt according to the temperature situation of cold water coil pipe and hot water coil pipe that acquire, need not to purchase separately two temperature controllers 10 of regulating or four temperature controllers 10 of regulating, can be applicable to two regulation and four regulation's fan coil pipe air conditioning system's control simultaneously, the cost is saved more, moreover the control of temperature controller 10 is more intelligent.
The mode switching module comprises a knob dial switch 8, the knob dial switch 8 comprises a first dial bit, a second dial bit and a third dial bit, the first dial bit is a temperature point fan stop selection bit, the second dial bit is a temperature point water stop valve dial bit, and the third dial bit is a temperature point automatic wind speed operation dial bit. The mode switching module of the application is additionally provided with the knob dial switch 8, so that a user can select proper dial positions according to the needs in the operation process, the selectivity of the user is improved, and meanwhile, the use requirements of the user can be met better.
The main control board includes weak current board 3 and strong current board 4, and temperature controller 10 still includes display panel 1, panel 2 and drain pan 5, and display panel 1 sets up on panel 2, and panel 2 lid is established on drain pan 5, and weak current board 3 and strong current board 4 are integrated to be installed in the installation space that panel 2 and drain pan 5 formed.
In this embodiment, the weak current plate 3 and the strong current plate 4 of the temperature controller 10 are integrated in the bottom shell 5 of the temperature controller 10, so that the installation space can be reduced to the maximum, and the cost can be saved. In this embodiment, the display panel is a liquid crystal display panel, the display panel 1, the weak current board 3 and the strong current board 4 are integrated in the bottom shell 5 of the temperature controller 10 with 86x86mm, the structure is compact, the height of the temperature controller 10 is only 35mm, the cost can be reduced, and the control function is controlled and increased.
Referring to fig. 1 to 3 in combination, a fan coil air conditioning system according to an embodiment of the present application includes a thermostat 10, the thermostat 10 being the thermostat 10 described above.
The fan coil air conditioning system also comprises an open air tray 9, and a temperature controller 10 is arranged in the open air tray 9.
In the embodiment, the temperature controller 10 is integrated in the left side plate or the right side plate of the surface air disk 9, is connected with the motor and the water valve through a strong electric control line, detects the ambient temperature through an integrated panel temperature sensing bulb, and detects the temperature of the water inlet pipe of the surface air cooler through a coil temperature sensing bulb. The temperature controller 10 can also control the start and stop of a three-gear fan, control the switch of a two-tank refrigerating valve and a hot water valve and control the switch of a four-pipe heating water valve.
Referring to fig. 4 in combination, according to an embodiment of the present application, the control method of the fan coil air conditioning system includes: acquiring an indoor environment temperature T ring and a set temperature T; and comparing the T ring with the T set, and adjusting the rotating speed of the fan and the opening of the water valve according to the comparison result.
By adopting the temperature controller 10 to control the operation of the fan coil air conditioning system, the intelligent control of the fan coil air conditioning system can be realized, the linkage control of the water cooling control module and the fan wind speed control module is realized, the coupling control of the fan wind speed control module and the water cooling control module is conveniently realized, the temperature control strategy can be adjusted as required, the fine control of the temperature is realized, the temperature control precision is effectively improved, and the operation energy efficiency of the air conditioning system is improved.
In this embodiment, the temperature controller 10 can control the fan and the water valve simultaneously, so that linkage control of the fan and the water valve can be realized, and thus linkage can be performed on control of the water valve and the fan according to the detected indoor temperature in the control process, fine control of the indoor temperature is realized, control precision of the temperature controller 10 is improved, and adjustment efficiency and adjustment precision of the indoor temperature are improved.
Specifically, the step of comparing the T ring with the T set and adjusting the fan rotating speed and the water valve opening according to the comparison result comprises the following steps: when the T ring is less than or equal to T set-e, controlling the high-grade operation of the fan, controlling the water valve to be fully opened, and recording the operation time T1; when T is equal to or less than T ring is equal to or less than g, controlling the middle gear of the fan to operate, controlling the water valve to be fully opened, and recording the operation time T2; when T is set to be less than or equal to T and less than or equal to T is set to be less than or equal to T, controlling the low-gear operation time T3 of the fan, and controlling the water valve to circulate in a mode of starting time T4 and stopping time T5; wherein t3= (Δt1+Δt2×t2)/(Δt1+Δt2), and T1 is the fan top-grade operation time; t2 is the middle-gear running time of the fan; delta T1 is the high-grade operation temperature difference of the fan; delta T2 is the mid-range operating temperature difference of the fan.
E is, for example, 5℃and f is, for example, 4℃and g is, for example, 2 ℃.
T3 is determined by t3= (Δt1+Δt2×t2)/(Δt1+Δt2), which has the advantages that the operation strategy of the low windshield under partial load can be calculated according to the change Δt of indoor room load and the corresponding time T of the cooling capacity or heating capacity and load change of the unit, so that the load is matched with the corresponding cooling and heating capacity, the indoor comfort is higher, the matching degree with the set temperature is higher, and the control precision is higher.
Through the control mode, proper wind speed and water valve control mode can be selected according to the difference between the indoor environment temperature and the set temperature, so that when the difference between the indoor environment temperature and the set temperature is large, the indoor temperature is quickly adjusted, after the difference between the indoor environment temperature and the set temperature reaches a certain degree, the adjusting speed of the indoor temperature is reduced, the adjusting speed of the indoor environment temperature can be matched with the temperature difference value, the air conditioner can be ensured to operate at higher energy efficiency, the temperature adjusting efficiency can be improved, and the temperature control precision is improved.
The control method further comprises the following steps: detecting the temperature T1 of the cold water coil and the temperature T2 of the hot water coil after the power-on time T0; when detecting that the temperature of the I T1-T2I is less than or equal to a1 ℃, judging that the fan coil air conditioning system is in two control; switching the fan coil air conditioning system into two-pipe operation; when detecting that the I T1-T2I is not less than a2 ℃, judging that the fan coil air conditioning system is of a four-pipe system; switching the fan coil air conditioning system to four-pipe operation; wherein a1 < a2. The t0 is, for example, 60s, so long as the operation stability of the fan coil air conditioning system is ensured.
The interface of the two temperature sensors of the temperature controller 10 can be in butt joint with the temperature sensor for detecting the temperature of the coil, so that the temperature of the coil can be conveniently obtained, the two-pipe control or the four-pipe control adopted by the fan coil air conditioning system can be determined according to the temperature of the coil, then a control program can be switched, and a control mode suitable for the operation of the fan coil air conditioning system is selected. After the mode is adopted, whether the two-pipe control or the four-pipe control is actually installed by a user is not considered, the control mode is only needed to be determined according to the detection result, then the corresponding control program is selected, and the independent temperature controller 10 is not needed to be purchased, so that the applicability of the temperature controller 10 is improved, and the intelligent control degree of the temperature controller 10 is also improved.
In the application, when the temperature of the I T1-T2I is less than or equal to 3 ℃, the cold water coil and the hot water coil are considered to have the same temperature value, namely the cold water and the hot water share one coil, the two pipes are judged, and the program is automatically switched to the two-pipe operation.
When the temperature of the cold water coil pipe and the hot water coil pipe is not equal to or more than 4 ℃ when the temperature of the I T1-T2I is detected, namely the cold water coil pipe and the hot water coil pipe are independent coil pipes, judging that the coil pipes are four-pipe pipes, and automatically switching the program to four-pipe system operation. The value of a1 may be other, the value of a2 may be other, and the values may be set as needed.
The step of controlling the fan coil air conditioning system according to the operational status of the fan coil air conditioning system further comprises: acquiring an indoor environment temperature T ring; when the T ring is more than or equal to a and T1 is less than or equal to b, controlling the fan coil air conditioning system to operate in a refrigeration mode; when the T ring is less than or equal to c and T1 is less than or equal to d, controlling the fan coil air conditioning system to operate in a heating mode; and when c is less than T and less than a, controlling the fan coil air conditioning system to operate in the current mode.
The above-mentioned a is, for example, 26 ℃, b is, for example, 20 ℃, c is, for example, 22 ℃, and d is, for example, 32 ℃.
The temperature controller 10 has a coil pipe temperature sensing bulb, can feel the temperature of water entering and exiting the vertical open-air-installed disc, checks the temperature of water and the ring temperature after 60 seconds after power-on, and the unit is controlled according to the detected temperature. After two or four pipes are judged, the cold supply or heat supply mode operation is automatically judged according to the water temperature and the ring temperature, so that the automatic intelligent control degree of the fan coil air conditioning system is further improved.
The step of controlling the fan coil air conditioning system according to the running state of the fan coil air conditioning system comprises the following steps: detecting the dialing position of a knob dialing switch 8; and controlling the fan coil air conditioning system to be in a temperature point fan-stopping, temperature point water-stopping valve and temperature point automatic wind speed running state according to the dial position of the knob dial switch 8.
Through the mode, the proper dialing position can be selected according to the requirement of the user, and then the proper operation mode is selected according to the dialing position, so that the requirement of the user can be better met.
The control method further includes: acquiring the running state of a fan coil air conditioning system; when the fan coil air conditioning system is in a shutdown state, detecting whether a parameter setting program is triggered; when the parameter setting program is triggered, entering a secondary menu setting interface; and setting a cold air protection value and a hot air protection value.
In this embodiment, when the fan coil air conditioning system is in a shutdown state, parameter setting may be performed through the combination key, entering into a secondary menu setting, then setting a cold air protection value through P1, and setting a hot air protection value through P2. The above-mentioned combination key is, for example, a key for pressing the wind speed and a key for up-regulating for 5 seconds. By adopting the combination key control mode to perform the parameter setting of cold air protection, misoperation caused by false touch can be effectively avoided, the operation accuracy is improved, and the reliability of the temperature controller 10 is improved.
In this embodiment, the temperature of the T cold air-proof air=32 to 35 ℃, and the temperature of the T hot air-proof air=25 to 28 ℃, so that the problem of blowing cold air when the outdoor environment temperature is low and blowing hot air when the outdoor environment temperature is high can be more effectively avoided, and the use comfort of a user is improved.
It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.
The foregoing description of the preferred embodiment of the present invention is not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. The foregoing is merely a preferred embodiment of the present application and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principles of the present application, and these modifications and variations should also be regarded as the scope of the present application.
Claims (7)
1. The control method of the fan coil air conditioning system is characterized in that the fan coil air conditioning system comprises a temperature controller, the temperature controller comprises a main control board, a mode switching module, a fan wind speed control module and a water cooling control module, the mode switching module, the fan wind speed control module and the water cooling control module are all connected to the main control board, and the fan wind speed control module and the water cooling control module are controlled in a linkage mode by the main control board;
the control method of the fan coil air conditioning system comprises the following steps:
acquiring an indoor environment temperature T ring and a set temperature T;
comparing the T ring with the T setting, and adjusting the rotating speed of the fan and the opening of the water valve according to the comparison result;
the step of comparing the T ring with the T set and adjusting the rotating speed of the fan and the opening of the water valve according to the comparison result comprises the following steps:
when the T ring is less than or equal to T set-e, controlling the high-grade operation of the fan, controlling the water valve to be fully opened, and recording the operation time T1;
when T is equal to or less than T ring is equal to or less than g, controlling the middle gear of the fan to operate, controlling the water valve to be fully opened, and recording the operation time T2;
when T is set to be less than or equal to T and less than or equal to T is set to be less than or equal to T, controlling the low-gear operation time T3 of the fan, and controlling the water valve to circulate in a mode of starting time T4 and stopping time T5;
wherein t3= (Δt1+Δt2×t2)/(Δt1+Δt2), and T1 is the fan top-grade operation time; t2 is the middle-gear running time of the fan; delta T1 is the high-grade operation temperature difference of the fan; delta T2 is the mid-range operation temperature difference of the fan, and g is less than f and less than e.
2. The method for controlling a fan coil air conditioning system according to claim 1, wherein the mode switching module comprises a knob dial switch (8), the knob dial switch (8) comprises a first dial bit, a second dial bit and a third dial bit, the first dial bit is a temperature point fan stop selection bit, the second dial bit is a temperature point water stop valve dial bit, and the third dial bit is a temperature point automatic wind speed operation dial bit.
3. The control method of a fan coil air conditioning system according to claim 1, wherein the main control board comprises a weak current board (3) and a strong current board (4), the temperature controller further comprises a display board (1), a panel (2) and a bottom shell (5), the display board (1) is arranged on the panel (2), the panel (2) is covered on the bottom shell (5), and the weak current board (3) and the strong current board (4) are integrally installed in an installation space formed by the panel (2) and the bottom shell (5).
4. The method of controlling a fan coil air conditioning system according to claim 1, further comprising an open air pan (9), the thermostat (10) being disposed within the open air pan (9).
5. The method of controlling a fan coil air conditioning system of claim 2, wherein the step of controlling the fan coil air conditioning system according to an operation state of the fan coil air conditioning system comprises:
detecting the dialing position of a knob dialing switch (8);
and controlling the fan coil air conditioning system to be in a temperature point fan stopping, a temperature point water stopping valve and a temperature point automatic wind speed running state according to the dial position of the knob dial switch (8).
6. The method of controlling a fan coil air conditioning system of claim 1, further comprising:
acquiring the running state of a fan coil air conditioning system;
when the fan coil air conditioning system is in a shutdown state, detecting whether a parameter setting program is triggered;
when the parameter setting program is triggered, entering a secondary menu setting interface;
and setting a cold air protection value and a hot air protection value.
7. The method of claim 6, wherein T is anti-cold air = 32-35 ℃, T is anti-hot air = 25-28 ℃.
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