CN110657549A - Temperature controller, fan coil air conditioning system and control method thereof - Google Patents
Temperature controller, fan coil air conditioning system and control method thereof Download PDFInfo
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- CN110657549A CN110657549A CN201910974934.8A CN201910974934A CN110657549A CN 110657549 A CN110657549 A CN 110657549A CN 201910974934 A CN201910974934 A CN 201910974934A CN 110657549 A CN110657549 A CN 110657549A
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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
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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
- F24F11/62—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
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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
- F24F11/84—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
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- 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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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 and a water-cooling control module, wherein the mode switching module and the water-cooling control module are both connected to the main control board and are controlled by the main control board, the water-cooling control module comprises a first temperature sensor interface (6) and a second temperature sensor interface (7), 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. According to the temperature controller of this application, control function is diversified, and control is more comprehensive, can conveniently realize the intelligent control of temperature controller.
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-mounted air disc is controlled by a simple temperature controller, 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 air coil pipe comprises two pipes and four pipes, different control modules are required to be adopted for the air coil pipes of different pipes, so that the temperature controllers of different types are required to be selected according to the pipes of the air coil pipe in the existing air conditioning system, the intelligent degree is low, the adaptability is poor, and the cost is high.
Disclosure of Invention
Therefore, the technical problem that this application will be solved lies in providing a temperature controller, fan coil air conditioning system and control method thereof, need not to select the temperature controller according to the control of fan coil, and the suitability of temperature controller is better, and intelligent degree is higher, and the cost is lower.
In order to solve the problems, the application provides a temperature controller, including the main control board, mode switching module and water-cooling control module all are connected to the main control board electrically, and control by the main control board, water-cooling control module includes first temperature sensor interface and second temperature sensor interface, first temperature sensor interface is used for being connected with first temperature sensor, the second temperature sensor interface is used for being connected with second temperature sensor, first temperature sensor is used for detecting cold water coil pipe temperature, second temperature sensor is used for detecting hot water coil pipe temperature.
Preferably, the temperature controller further comprises a fan wind speed control module, the fan wind speed control module is electrically 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 mode.
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 air supply interruption machine selection bit, the second dial bit is a temperature point water supply interruption 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 case, the display board is arranged on the panel, the panel is covered on the bottom case, and the weak current board and the strong current board are integrally installed in an installation space formed by the panel and the bottom case.
According to another aspect of the present application, there is provided a fan coil air conditioning system comprising a thermostat as described above.
Preferably, the fan coil air conditioning system further comprises an open-mounted air disc, and the temperature controller is arranged in the open-mounted air disc.
According to another aspect of the application, a control method of the fan coil air conditioning system is provided, and the control method comprises the following steps:
acquiring the temperature of a cold water coil;
acquiring the temperature of a hot water coil;
judging the coil control of the fan coil air-conditioning system according to the temperature of the cold water coil and the temperature of the hot water coil;
and switching the fan coil air conditioning system into a corresponding control operation mode according to the determined coil control.
Preferably, the step of determining a fan coil air conditioning system coil control based on the cold water coil temperature and the hot water coil temperature comprises:
detecting the temperature T1 of a cold water coil and the temperature T2 of a hot water coil after power-on time T0;
when the temperature of | T1-T2| ≦ a1 ℃, judging that the fan coil air-conditioning system is in two control systems;
when the temperature of | T1-T2| ≧ a2 ℃, judging that the fan coil air-conditioning system is in a four-pipe system;
wherein a1 < a 2.
Preferably, the control method further includes:
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 run in a refrigeration mode;
when the T ring is less than or equal to c and T1 is more than or equal to d, controlling the fan coil air-conditioning system to run in a heating mode;
and when c is more than T ring and less than a, controlling the fan coil air-conditioning system to operate according to the current mode.
Preferably, the control method further includes:
detecting the dial position of a knob dial switch;
and controlling the fan coil air-conditioning system to be in a temperature point fan stop, temperature point water stop valve and temperature point automatic wind speed running state according to the dial position of the knob dial switch.
Preferably, the control method further includes:
acquiring an indoor environment temperature T ring and a set temperature T;
and comparing the T ring with the T device, 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 device and adjusting the rotating speed of the fan and the opening degree of the water valve according to the comparison result comprises the following steps:
when the T ring is less than or equal to T and is set to be-e, controlling the high-grade operation of the fan, controlling the full opening of the water valve and recording the operation time T1;
when T is less than or equal to T set-f and T is less than or equal to T set-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 more than or equal to-g and T is less than or equal to T, controlling the fan to operate at a low gear for T3 time, and controlling the water valve to circulate in a mode of opening the water valve for T4 time and stopping the water valve for T5 time;
wherein T3 ═ Δ T1 × T1 +/Δ T2 × T2)/(Δt1 +/Δ T2), and T1 is the high-grade running time of the fan; t2 is the running time of the middle gear of the fan; the delta T1 is the high-grade operation temperature difference of the fan; and the delta T2 is the middle-gear operation temperature difference of the fan.
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 wind prevention protection value and a hot wind prevention protection value.
Preferably, the T cold-proof wind is 32-35 ℃, and the T hot-proof wind is 25-28 ℃.
The application provides a temperature controller, including the main control board, the mode switches the module, fan wind speed control module and water-cooling control module, mode switches the module and all is connected to the main control board with water-cooling control module electricity, and control by the main control board, water-cooling control module includes first temperature sensor interface and second temperature sensor interface, first temperature sensor interface is used for being connected with first temperature sensor, the second temperature sensor interface is used for being connected with second temperature sensor, first temperature sensor is used for detecting the cold water coil pipe temperature, second temperature sensor is used for detecting the hot water coil pipe temperature. This temperature controller is all handed over mode switch module and water-cooling control module's control and is controlled by the main control board, realize the butt joint through first temperature sensor interface and the first temperature sensor on the fan coil simultaneously, realize the butt joint through the second temperature sensor on second temperature sensor and the fan coil, consequently can acquire cold water coil temperature and hot water coil temperature simultaneously through the temperature controller, and then can judge fan coil's control according to cold water coil temperature and hot water coil temperature, and select suitable control operational mode, need not additionally to purchase the temperature controller of different controls, just can satisfy different control air conditioning system's control needs through a temperature controller, can realize the intelligent control to air conditioning system's control operational mode, the suitability is better, intelligent degree is higher, the cost is lower.
Drawings
Fig. 1 is an exploded schematic view of a temperature controller according to an embodiment of the present application;
fig. 2 is a structural diagram of a control panel of the temperature controller according to the embodiment of the present application;
FIG. 3 is a schematic structural diagram of an open-mounted air plate 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 represented as:
1. a display panel; 2. a panel; 3. a weak current plate; 4. a ferroelectric plate; 5. a bottom case; 6. a first temperature sensor interface; 7. a second temperature sensor interface; 8. a knob dial switch; 9. obviously installing an air disc; 10. and (7) a temperature controller.
Detailed Description
Referring to fig. 1 to 3 in combination, according to an embodiment of the present application, the temperature controller 10 includes a main control board, a mode switching module, a fan wind speed control module and a water cooling control module, the mode switching module and the water cooling control module are both connected to the main control board and are controlled by the main control board, the water cooling control module includes a first temperature sensor interface 6 and a second temperature sensor interface 7, 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 a temperature of a cold water coil, and the second temperature sensor is used for detecting a temperature of a hot water coil.
This temperature controller 10 is all handed mode switching module and water-cooling control module's control and is controlled by the main control board, realize the butt joint through first temperature sensor interface and the first temperature sensor on the fan coil simultaneously, realize the butt joint through the second temperature sensor on second temperature sensor and the fan coil, consequently can acquire cold water coil temperature and hot water coil temperature simultaneously through the temperature controller, and then can judge fan coil's control according to cold water coil temperature and hot water coil temperature, and select suitable control operation mode, need not additionally to purchase the temperature controller of different controls, just can satisfy different control air conditioning system's control needs through a temperature controller, can realize the intelligent control to air conditioning system's control operation mode, the suitability is better, intelligent degree is higher, the cost is lower.
The temperature controller 10 further comprises a fan air speed control module electrically connected to the main control board, and the fan air speed control module and the water cooling control module are controlled by the main control board in a linkage manner.
This temperature controller 10 is all handed over mode switching module, fan wind speed control module and water-cooling control module's control and is controlled by the main control board, consequently can realize fan coil air conditioning system's multi-functional control through temperature controller 10, can realize fan wind speed control module and water-cooling control module's coordinated control simultaneously, and control function is diversified, and control is more comprehensive, can select suitable control mode according to the temperature regulation situation, can enough realize the quick adjustment of temperature, can guarantee the regulation precision of temperature again. Because the above-mentioned control module of this application all adopts temperature controller 10 automatic control's mode, consequently can conveniently realize the intelligent control of temperature controller 10.
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 air supply interruption machine selection bit, the second dial bit is a temperature point water supply interruption valve dial bit, and the third dial bit is a temperature point automatic air speed operation dial bit. The mode switching module of this application has increased knob dial switch 8 for the user can select suitable dial indicator position as required in operation process, improves user's selectivity, also can satisfy user's user demand better simultaneously.
The main control board comprises a weak current board 3 and a strong current board 4, the temperature controller 10 further comprises a display board 1, a panel 2 and a bottom case 5, the display board 1 is arranged on the panel 2, the panel 2 covers the bottom case 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 case 5.
In this embodiment, the weak current plate 3 and the strong current plate 4 of the temperature controller 10 are integrated in the bottom case 5 of the temperature controller 10, so that the installation space can be maximally reduced, 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 plate 3 and the strong current plate 4 are integrated in the bottom case 5 of the thermostat 10 of 86x86mm, the structure is compact, the height of the thermostat 10 is only 35mm, the cost can be reduced, and the control function can be controlled and added.
Referring to fig. 1 to 3 in combination, according to an embodiment of the present application, a fan coil air conditioning system includes a thermostat 10, where the thermostat 10 is the thermostat 10 described above.
The fan coil air conditioning system also comprises an open-mounted air disc 9, and a temperature controller 10 is arranged in the open-mounted air disc 9.
In this embodiment, the temperature controller 10 is integrated in the left side plate or the right side plate of the obviously installed air plate 9, is connected with the motor and the water valve through a strong current control line, detects the environmental temperature through an integrated panel temperature sensing bulb, and detects the temperature of the water inlet pipe of the surface cooler through a coil pipe temperature sensing bulb. The temperature controller 10 can also control the start and stop of the three-gear fan, control the switch of the two-tank refrigeration and hot water valves, and control the switch of the four-pipe hot 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 the temperature of a cold water coil; acquiring the temperature of a hot water coil; judging the coil control of the fan coil air-conditioning system according to the temperature of the cold water coil and the temperature of the hot water coil; and switching the fan coil air conditioning system into a corresponding control operation mode according to the determined coil control.
Control fan coil air conditioning system's operation through adopting foretell temperature controller 10, can utilize temperature controller self function to judge fan coil's control according to cold water coil temperature and hot water coil temperature, and select suitable control operational mode, need not additionally to purchase the temperature controller of different regulations, just can satisfy different control air conditioning system's control needs through a temperature controller, can realize the intelligent control to air conditioning system's control operational mode, the suitability is better, intelligent degree is higher, the cost is lower.
The steps of determining the coil control of the fan coil air conditioning system based on the cold water coil temperature and the hot water coil temperature include: detecting the temperature T1 of a cold water coil and the temperature T2 of a hot water coil after power-on time T0; when the temperature of | T1-T2| ≦ a1 ℃, judging that the fan coil air-conditioning system is in two control systems; switching a fan coil air conditioning system into two-pipe operation; when the temperature of | T1-T2| ≧ a2 ℃, judging that the fan coil air-conditioning system is in a four-pipe system; switching a fan coil air conditioning system into four-pipe operation; wherein a1 < a 2. T0 is, for example, 60s, as long as stable operation of the fan coil air conditioning system is ensured.
Two temperature sensor interfaces of temperature controller 10 can realize the butt joint with the temperature sensor who detects the coil pipe temperature to can conveniently acquire the coil pipe temperature, and then confirm that fan coil air conditioning system adopts according to the coil pipe temperature be two control or four control, then can switch control program, select the control mode that is fit for fan coil air conditioning system operation. After adopting this mode, what can not consider user's actual installation is two control or four control, only need according to the result affirmation control mode that detects, then select corresponding control program can, need not to purchase solitary temperature controller 10, both improved temperature controller 10's suitability, also improved temperature controller 10's intelligent control degree.
In the application, when | T1-T2| is detected to be less than or equal to 3 ℃, the temperature values of the cold water coil and the hot water coil are considered to be equal, namely the cold water and the hot water share one coil, the two control is judged, and the program is automatically switched to the two control operation.
When the temperature of the cold water coil and the temperature of the hot water coil are not equal to each other when | T1-T2| > is detected to be more than or equal to 4 ℃, namely the cold water and the hot water are independent coils, the four-pipe control is judged, and the program is automatically switched to the four-pipe control operation. The above-mentioned a1 may have other values, and a2 may have other values, and may be set as needed.
The control method of the fan coil air conditioning system further comprises the following steps: 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 run in a refrigeration mode; when the T ring is less than or equal to c and T1 is more than or equal to d, controlling the fan coil air-conditioning system to run in a heating mode; and when c is more than T ring and less than a, controlling the fan coil air-conditioning system to operate according to 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 ℃.
This application temperature controller 10 has coil pipe temperature sensing package, can feel the business turn over water temperature that gets into vertical surface-mounted wind dish, goes up inspection temperature and ring temperature behind the electricity back 60s, and the unit is controlled according to detecting the temperature. After two-pipe or four-pipe system is judged, the operation of a cooling or heating mode is automatically judged according to the water temperature and the environment temperature, so that the automatic intelligent control degree of the fan coil air conditioning system is further improved.
The control method of the fan coil air conditioning system further comprises the following steps: detecting the dial position of the knob dial switch 8; and controlling the fan coil air-conditioning system to be in a temperature point fan stop, temperature point water stop 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 running mode can be selected according to the dialing position, so that the requirement of the user can be better met.
The control method of the fan coil air conditioning system further comprises the following steps: acquiring an indoor environment temperature T ring and a set temperature T; and comparing the T ring with the T device, and adjusting the rotating speed of the fan and the opening of the water valve according to the comparison result.
In this embodiment, the temperature controller 10 can control the fan and the water valve at the same time, so that the linkage control of the fan and the water valve can be realized, and therefore, the control of the water valve and the fan can be linked according to the detected indoor temperature in the control process, the fine control of the indoor temperature is realized, the control precision of the temperature controller 10 is improved, and the regulation efficiency and the regulation precision of the indoor temperature are improved.
Specifically, the step of comparing T ring and T device and adjusting the fan speed and the water valve opening according to the comparison result comprises: when the T ring is less than or equal to T and is set to be-e, controlling the high-grade operation of the fan, controlling the full opening of the water valve and recording the operation time T1; when T is less than or equal to T set-f and T is less than or equal to T set-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 more than or equal to-g and T is less than or equal to T, controlling the fan to operate at a low gear for T3 time, and controlling the water valve to circulate in a mode of opening the water valve for T4 time and stopping the water valve for T5 time; wherein T3 ═ Δ T1 × T1 +/Δ T2 × T2)/(Δt1 +/Δ T2), and T1 is the high-grade running time of the fan; t2 is the running time of the middle gear of the fan; the delta T1 is the high-grade operation temperature difference of the fan; and the delta T2 is the middle-gear operation temperature difference of the fan.
The above-mentioned e is, for example, 5 ℃, f is, for example, 4 ℃, and g is, for example, 2 ℃.
T3 is determined by T3 (. DELTA.T 1. T1 +. DELTA.T 2. T2)/(. DELTA.T 1 +. DELTA.T 2), which is advantageous in that the operation strategy of a low damper under a partial load can be calculated according to the change of the indoor room load, and the corresponding time T of the cooling or heating amount of the unit and the load change, thereby realizing matching of the load with the corresponding cooling and heating amount, higher indoor comfort, higher matching degree with the set temperature, and higher control precision.
Through the control mode, a proper air 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, and 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, so that 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 high energy efficiency, the temperature adjusting efficiency can be improved, and the temperature control precision is improved.
The control method of the fan coil air conditioning system further comprises the following steps: 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 wind prevention protection value and a hot wind prevention protection value.
In this embodiment, when the fan coil air conditioning system is in the off state, parameter setting can be performed through a combination key, entering a secondary menu setting, then setting a cold air prevention protection value through P1, and setting a hot air prevention protection value through P2. The above-mentioned combination keys are, for example, a wind speed key and an up key for 5 seconds. Adopt the parameter setting that the combination key control mode carried out anti-cold wind protection, can effectively avoid the mistake to touch the maloperation that causes, improve the accuracy of operation, improve temperature controller 10's reliability.
In this embodiment, the T cold-proof wind is 32-35 ℃, and the T hot-proof wind is 25-28 ℃, so that the problems of cold wind blowing when the outdoor environment temperature is low and hot wind blowing when the outdoor environment temperature is high can be effectively avoided, and the use comfort of users is improved.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (14)
1. The utility model provides a temperature controller, its characterized in that, includes main control board, mode switching module and water-cooling control module all are connected to the main control board, and by the main control board is controlled, water-cooling control module includes first temperature sensor interface (6) and second temperature sensor interface (7), first temperature sensor interface (6) are used for being connected with first temperature sensor, second temperature sensor interface (7) are used for being connected with second temperature sensor, first temperature sensor is used for detecting cold water coil pipe temperature, second temperature sensor is used for detecting hot water coil pipe temperature.
2. The temperature controller of claim 1, further comprising a fan wind speed control module electrically connected to the main control board, wherein the fan wind speed control module and the water cooling control module are controlled by the main control board in a linkage manner.
3. The temperature controller 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 air stop fan 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.
4. The thermostat of claim 1, wherein the main control board comprises a weak current board (3) and a strong current board (4), and the thermostat further comprises a display board (1), a panel (2) and a bottom case (5), the display board (1) is disposed on the panel (2), the panel (2) is covered on the bottom case (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 case (5).
5. A fan coil air conditioning system comprising a thermostat (10), characterized in that the thermostat (10) is a thermostat according to any one of claims 1 to 4.
6. A fan coil air conditioning system as claimed in claim 5, further comprising a surface mounted air plate (9), the temperature controller (10) being disposed within the surface mounted air plate (9).
7. A method of controlling a fan coil air conditioning system as claimed in claim 5 or 6, comprising:
acquiring the temperature of a cold water coil;
acquiring the temperature of a hot water coil;
judging the coil control of the fan coil air-conditioning system according to the temperature of the cold water coil and the temperature of the hot water coil;
and switching the fan coil air conditioning system into a corresponding control operation mode according to the determined coil control.
8. A method of controlling a fan coil air conditioning system as set forth in claim 7, wherein said step of determining a fan coil air conditioning system coil control based on the cold water coil temperature and the hot water coil temperature comprises:
detecting the temperature T1 of a cold water coil and the temperature T2 of a hot water coil after power-on time T0;
when the temperature of | T1-T2| ≦ a1 ℃, judging that the fan coil air-conditioning system is in two control systems;
when the temperature of | T1-T2| ≧ a2 ℃, judging that the fan coil air-conditioning system is in a four-pipe system;
wherein a1 < a 2.
9. A method of controlling a fan coil air conditioning system as set forth in claim 8, further comprising:
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 run in a refrigeration mode;
when the T ring is less than or equal to c and T1 is more than or equal to d, controlling the fan coil air-conditioning system to run in a heating mode;
when c is more than T ring and less than a, controlling the fan coil air-conditioning system to operate according to the current mode; wherein c is less than a, and b is less than d.
10. A method of controlling a fan coil air conditioning system as set forth in claim 7, further comprising:
detecting the dial position of a knob dial switch (8);
and controlling the fan coil air-conditioning system to be in a temperature point fan stop, temperature point water stop valve and temperature point automatic wind speed running state according to the dial position of the knob dial switch (8).
11. A method of controlling a fan coil air conditioning system as set forth in claim 7, further comprising:
acquiring an indoor environment temperature T ring and a set temperature T;
and comparing the T ring with the T device, and adjusting the rotating speed of the fan and the opening of the water valve according to the comparison result.
12. A method of controlling a fan coil air conditioning system as set forth in claim 11, wherein said step of comparing T-ring and T-setting and adjusting fan speed and water valve opening based on the comparison comprises:
when the T ring is less than or equal to T and is set to be-e, controlling the high-grade operation of the fan, controlling the full opening of the water valve and recording the operation time T1;
when T is less than or equal to T set-f and T is less than or equal to T set-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 more than or equal to-g and T is less than or equal to T, controlling the fan to operate at a low gear for T3 time, and controlling the water valve to circulate in a mode of opening the water valve for T4 time and stopping the water valve for T5 time;
wherein T3 ═ Δ T1 × T1 +/Δ T2 × T2)/(Δt1 +/Δ T2), and T1 is the high-grade running time of the fan; t2 is the running time of the middle gear of the fan; the delta T1 is the high-grade operation temperature difference of the fan; and the delta T2 is the middle-gear operation temperature difference of the fan.
13. A method of controlling a fan coil air conditioning system as set forth in claim 7, 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 wind prevention protection value and a hot wind prevention protection value.
14. A fan coil air conditioning system control method as claimed in claim 13, wherein T cold protection air is 32-35 ℃ and T hot protection air is 25-28 ℃.
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| CN201910974934.8A CN110657549B (en) | 2019-10-14 | 2019-10-14 | Temperature controller, fan coil air conditioning system and control method thereof |
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| CN201910974934.8A CN110657549B (en) | 2019-10-14 | 2019-10-14 | Temperature controller, fan coil air conditioning system and control method thereof |
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Cited By (1)
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| WO2022193109A1 (en) * | 2021-03-16 | 2022-09-22 | Honeywell International Inc. | Automatic changeover control of a fan coil unit of a building |
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| CN110657549B (en) | 2020-11-06 |
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