CN110207344B - Control method and device for fan coil - Google Patents
Control method and device for fan coil Download PDFInfo
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- CN110207344B CN110207344B CN201910527171.2A CN201910527171A CN110207344B CN 110207344 B CN110207344 B CN 110207344B CN 201910527171 A CN201910527171 A CN 201910527171A CN 110207344 B CN110207344 B CN 110207344B
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- indoor temperature
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- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000005057 refrigeration Methods 0.000 claims abstract description 16
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 13
- 238000004891 communication Methods 0.000 description 11
- 230000006870 function Effects 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 238000004781 supercooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 235000019800 disodium phosphate Nutrition 0.000 description 1
- 238000000802 evaporation-induced self-assembly Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction 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
- F24F11/62—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
- F24F11/89—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)
- Air Conditioning Control Device (AREA)
Abstract
The embodiment of the invention discloses a control method and a control device for a fan coil, relates to the technical field of air conditioners, and solves the problems of higher running cost, higher energy consumption and poorer room comfort level when the air conditioner is controlled by using the fan coil at three speeds. The specific scheme is as follows: the control device of the fan coil comprises: the device comprises a fan coil, a water pipe connected with the fan coil, a mixing air static pressure box, an air pipe connected with the mixing air static pressure box, a first control valve arranged on the water pipe and a second control valve arranged on the air pipe; the method comprises the steps of obtaining indoor temperature and a current operation mode, wherein the current operation mode comprises a refrigeration mode and a heating mode, controlling the opening and closing of a first control valve and a second control valve according to the current operation mode and a comparison result of the indoor temperature and a set temperature, and adjusting the wind speed of a fan coil. The embodiment of the invention is used in the running process of the air conditioner.
Description
Technical Field
The embodiment of the invention relates to the technical field of air conditioners, in particular to a control method and device of a fan coil.
Background
At present, a fan coil and concentrated fresh air conditioning mode is one of the most widely used modes in building air conditioning. The traditional fan coil three-speed control air conditioner controls the cooling (heating) quantity of the fan coil by adjusting the three-gear wind speed of the fan coil, thereby realizing the adjustment of indoor temperature.
However, under the condition of using the fan coil to control the air conditioner at three speeds, as the requirements of different directions and subareas on the indoor temperature are different in winter or transitional seasons, namely, heat supply is needed in part of time periods, cooling is needed in part of time periods, and a 4-control or subarea 2-control air conditioning system is needed to meet the requirements of rooms in different time periods on the indoor temperature, but the cost and the running cost of the air conditioner are increased.
And because the indoor fresh air quantity is determined according to the number of people in advance, when the load in summer is lower, namely the required cooling quantity is less, the fan coil is in a closed state, and the cooling quantity provided by the fresh air is larger than the condition of the cooling load required by the indoor environment, so that the indoor supercooling is caused, and the comfort of a room is poor and the energy saving is not facilitated.
Disclosure of Invention
The invention provides a control method and a control device for a fan coil, which solve the problems of higher running cost, higher energy consumption and poorer room comfort level when an air conditioner is controlled by using the fan coil at three speeds.
In order to achieve the above purpose, the invention adopts the following technical scheme:
In a first aspect, the present invention provides a method for controlling a fan coil, where the method may be applied to a fan coil control apparatus, where the fan coil control apparatus may include: the device comprises a fan coil, a water pipe connected with the fan coil, a mixing air static pressure box, an air pipe connected with the mixing air static pressure box, a first control valve arranged on the water pipe and a second control valve arranged on the air pipe. The method may include: acquiring indoor temperature and a current operation mode, wherein the current operation mode comprises a refrigeration mode and a heating mode; and controlling the opening and closing of the first control valve and the second control valve according to the current operation mode and the comparison result of the indoor temperature and the set temperature, and adjusting the wind speed of the fan coil.
With reference to the first aspect, in one possible implementation manner, according to the current operation mode and a comparison result of the indoor temperature and the set temperature, controlling the switch of the first control valve and the second control valve may specifically include: if the current operation mode is a refrigeration mode, when the indoor temperature is greater than or equal to the set temperature, the first control valve is controlled to be opened, and when the indoor temperature is less than or equal to a first preset temperature value, the first control valve is controlled to be closed, and the first preset temperature value is less than the set temperature; and when the indoor temperature is greater than or equal to a first preset temperature value, controlling the second control valve to be opened, and when the indoor temperature is less than or equal to a second preset temperature value, controlling the second control valve to be closed, wherein the second preset temperature value is less than the first preset temperature value.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, adjusting a wind speed of the fan coil may specifically include: if the current operation mode is a refrigeration mode, when the indoor temperature is greater than or equal to a third preset temperature value, the wind speed of the fan coil is adjusted to a preset upper limit value; the third preset temperature value is greater than the set temperature; when the indoor temperature is higher than the set temperature and lower than a third preset temperature value, the wind speed of the fan coil is adjusted to a first set value, and the first set value is lower than the upper limit value; when the indoor temperature is less than or equal to the set temperature, the wind speed of the fan coil is adjusted to a second set value, and the second set value is less than the first set value.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, controlling the switch of the first control valve and the second control valve according to the current operation mode and a comparison result of the indoor temperature and the set temperature may specifically include: if the current operation mode is a heating mode, when the indoor temperature is smaller than or equal to the set temperature, the first control valve is controlled to be opened, and when the indoor temperature is larger than or equal to a third preset temperature value, the first control valve is controlled to be closed; and when the indoor temperature is greater than or equal to the set temperature, controlling the second control valve to be opened, and when the indoor temperature is less than or equal to the first preset temperature value, controlling the second control valve to be closed.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, adjusting a wind speed of the fan coil may specifically include: if the current operation mode is a heating mode, when the indoor temperature is smaller than or equal to a first preset temperature value, the wind speed of the fan coil is adjusted to an upper limit value; when the indoor temperature is larger than a first preset temperature value and smaller than a set temperature, the wind speed of the fan coil is adjusted to a first set value; and when the indoor temperature is greater than or equal to the set temperature, the wind speed of the fan coil is adjusted to a second set value.
In a second aspect, the present invention provides a control device for a fan coil, the control device for a fan coil may include: the device comprises a fan coil, a water pipe and a mixing air static pressure box which are connected with the fan coil, an air pipe which is connected with the mixing air static pressure box, a first control valve which is arranged on the water pipe, a second control valve which is arranged on the air pipe and a controller. The controller is used for acquiring the indoor temperature and the current operation mode, wherein the current operation mode comprises a refrigeration mode and a heating mode; and controlling the opening and closing of the first control valve and the second control valve according to the current operation mode and the comparison result of the indoor temperature and the set temperature, and adjusting the wind speed of the fan coil.
With reference to the second aspect, in one possible implementation manner, the controller is specifically configured to: if the current operation mode is a refrigeration mode, when the indoor temperature is greater than or equal to the set temperature, the first control valve is controlled to be opened, and when the indoor temperature is less than or equal to a first preset temperature value, the first control valve is controlled to be closed, and the first preset temperature value is less than the set temperature; and when the indoor temperature is greater than or equal to a first preset temperature value, controlling the second control valve to be opened, and when the indoor temperature is less than or equal to a second preset temperature value, controlling the second control valve to be closed, wherein the second preset temperature value is less than the first preset temperature value.
With reference to the second aspect and the foregoing possible implementation manners, in another possible implementation manner, the controller is specifically configured to: if the current operation mode is a refrigeration mode, when the indoor temperature is greater than or equal to a third preset temperature value, the wind speed of the fan coil is adjusted to a preset upper limit value; the third preset temperature value is greater than the set temperature; when the indoor temperature is higher than the set temperature and lower than a third preset temperature value, the wind speed of the fan coil is adjusted to a first set value, and the first set value is lower than the upper limit value; when the indoor temperature is less than or equal to the set temperature, the wind speed of the fan coil is adjusted to a second set value, and the second set value is less than the first set value.
With reference to the second aspect and the foregoing possible implementation manners, in another possible implementation manner, the controller is specifically configured to: if the current operation mode is a heating mode, when the indoor temperature is smaller than or equal to the set temperature, the first control valve is controlled to be opened, and when the indoor temperature is larger than or equal to a third preset temperature value, the first control valve is controlled to be closed; and when the indoor temperature is greater than or equal to the set temperature, controlling the second control valve to be opened, and when the indoor temperature is less than or equal to the first preset temperature value, controlling the second control valve to be closed.
With reference to the second aspect and the foregoing possible implementation manners, in another possible implementation manner, the controller is specifically configured to: if the current operation mode is a heating mode, when the indoor temperature is smaller than or equal to a first preset temperature value, the wind speed of the fan coil is adjusted to an upper limit value; when the indoor temperature is larger than a first preset temperature value and smaller than a set temperature, the wind speed of the fan coil is adjusted to a first set value; and when the indoor temperature is greater than or equal to the set temperature, the wind speed of the fan coil is adjusted to a second set value.
Specific implementation manners may refer to the first aspect or the behavior function of the fan coil control device in the fan coil control method provided by the possible implementation manners of the first aspect.
In a third aspect, there is provided a control device for a fan coil, the control device comprising: at least one controller, a memory, a communication interface, and a communication bus. The controller is connected with the memory and the communication interface through a communication bus, the memory is used for storing computer execution instructions, and when the control device of the fan coil runs, the controller executes the computer execution instructions stored in the memory to enable the control device of the fan coil to execute the control method of the fan coil according to the first aspect or any one of possible implementation manners of the first aspect.
In a fourth aspect, there is provided a computer storage medium having stored thereon computer executable instructions which, when run on a control device of a fan coil, cause the control device of a fan coil to perform the method of controlling a fan coil as in the first aspect or any of the possible implementations of the first aspect.
According to the control method of the fan coil, after the indoor temperature and the current operation mode are obtained, the switch of the first control valve arranged on the water pipe can be controlled, the switch of the second control valve arranged on the air pipe can be controlled, and the wind speed of the fan coil can be adjusted according to the current operation mode and the comparison result of the indoor temperature and the set temperature. Therefore, on the basis of wind speed control of the fan coil, the control of the switch of the first control valve and the switch of the second control valve is added to control the cooling quantity or the heating quantity, and the accuracy of indoor temperature control is improved. And because the second control valve is installed on the tuber pipe, through the switch of control second control valve in summer, can control the cold volume that the new trend provided to avoid the supercooling condition in the time of the low load in summer, not only improved room comfort level and saved the running cost of air conditioner.
Drawings
Fig. 1 is a schematic diagram of a control device for a fan coil according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for controlling a fan coil according to an embodiment of the present invention;
Fig. 3 is a schematic diagram of another fan coil control apparatus according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to solve the problems of higher operation cost, higher energy consumption and poorer room comfort when the fan coil is used for controlling the air conditioner at three speeds, the embodiment of the invention provides a control method of the fan coil, which can be applied to a control device of the fan coil shown in fig. 1. As shown in fig. 1, the fan coil control apparatus may include: the air conditioner comprises a fan coil 11, a water pipe 12 and a mixed air static pressure box 13 which are connected with the fan coil 11, an air pipe 14 which is connected with the mixed air static pressure box 13, a first control valve 15 which is arranged on the water pipe 12, a second control valve 16 which is arranged on the air pipe 14 and a controller 17.
Wherein, the water pipe 12 is used for connecting a cold water unit and a hot water unit. The hot and cold water machine set is used for providing water with different temperatures for the water pipe 12 in different operation modes. For example, when the operation mode is the cooling mode, cold water is supplied to the water pipe 12; when the operation mode is the heating mode, hot water is supplied to the water pipe 12.
The tuber pipe 14 is used for connecting fresh air handling unit, and this fresh air handling unit is used for providing fresh air to tuber pipe 14. For example, when the operation mode is a cooling mode or a heating mode, fresh air having a temperature lower than the indoor temperature is supplied to the air duct 14, and the amount of fresh air supplied is determined according to the number of persons preset.
The controller 17 may include an acquisition module and a control module. The acquisition module can comprise a temperature sensor and is used for acquiring indoor temperature when the fan coil is in operation, the acquisition module is also used for acquiring a current operation mode according to the selection operation of a user, the indoor temperature and the current operation mode are sent to the control module, and the current operation mode can comprise a refrigerating mode and a heating mode. The control module is used for controlling the opening and closing of the first control valve 15 and the second control valve 16 according to the collected current operation mode and the comparison result of the indoor temperature and the set temperature, and adjusting the wind speed of the fan coil 11.
The first control valve 15 or the second control valve 16 may be an electric switch valve.
Based on fig. 1, fig. 2 is a flowchart of a control method of a fan coil according to an embodiment of the present invention, as shown in fig. 2, the method may include:
201. The indoor temperature and the current operation mode are obtained.
After the control device of the fan coil is started, the indoor temperature can be obtained in real time through the temperature sensor, and the current running mode is obtained according to the selection operation of a user.
202. And controlling the opening and closing of the first control valve and the second control valve according to the current operation mode and the comparison result of the indoor temperature and the set temperature, and adjusting the wind speed of the fan coil.
After the indoor temperature is obtained, the control device of the fan coil can compare the indoor temperature with the set temperature of a user, control the opening and closing of the first control valve and the second control valve according to the comparison result and the current operation mode, and adjust the wind speed of the fan coil.
Specific: if the current operation mode is a refrigeration mode, the control device of the fan coil can control the first control valve to be opened when the indoor temperature is greater than or equal to the set temperature, cold water in the water pipe can provide cold for the indoor space at the moment, so that the indoor temperature is reduced, and the first control valve is controlled to be closed until the indoor temperature is less than or equal to a first preset temperature value. And the second control valve can be controlled to be opened when the indoor temperature is greater than or equal to a first preset temperature value, and the fresh air in the air pipe can provide cold for the indoor at the moment until the indoor temperature is less than or equal to the second preset temperature value, and the second control valve is controlled to be closed. Wherein the first preset temperature value is smaller than the set temperature, the second preset temperature value is smaller than the first preset temperature value, and in one possible implementation manner, assuming that the set temperature is T, the first preset temperature value may be T-1, and the second preset temperature value may be T-2.
Correspondingly, the wind speed control of the fan coil when the current operation mode is the refrigeration mode is as follows: if the current operation mode is the refrigeration mode, the control device of the fan coil can adjust the wind speed of the fan coil to the preset upper limit value when the indoor temperature is greater than or equal to a third preset temperature value, and the third preset temperature value is greater than the set temperature, and at the moment, the indoor temperature cooling speed can be increased by controlling the fan coil to operate at the maximum wind speed. When the indoor temperature is higher than the set temperature and lower than a third preset temperature value, the wind speed of the fan coil is adjusted to a first set value, and the first set value is lower than the upper limit value; when the indoor temperature is less than or equal to the set temperature, the wind speed of the fan coil is adjusted to a second set value, and the second set value is smaller than the first set value. In one possible implementation, assuming that the set temperature is T, the third preset temperature value may be t+1. And the fan coil in the embodiment of the invention can be a three-speed fan coil, and the three-speed fan coil comprises three wind speed gears when leaving the factory, wherein the high speed gear can correspond to the upper limit value, the medium speed gear can correspond to the first set value, and the low speed gear can correspond to the second set value.
For example, assuming an indoor temperature of 28 degrees celsius (°c), a current operation mode is a cooling mode, a set temperature T is 25 ℃, and assuming a first preset temperature value of T-1=24 ℃, a second preset temperature value of T-2=23 ℃, and a third preset temperature value of t+1=26 ℃. Then the control device of the fan coil determines that the temperature of 28 ℃ is higher than 25 ℃, controls the first control valve to be opened, determines that the temperature of 28 ℃ is higher than 24 ℃, controls the second control valve to be opened, determines that the temperature of 28 ℃ is higher than 26 ℃, and adjusts the wind speed of the fan coil to a high speed gear, and at the moment, cold water in the water pipe and fresh air in the air pipe jointly bear indoor cold load. When the indoor temperature is reduced to below 26 ℃ and above 25 ℃, the wind speed of the fan coil is adjusted to a medium speed. When the indoor temperature is reduced to 25 ℃, the wind speed of the fan coil is adjusted to a low speed gear. When the indoor temperature is reduced to 24 ℃, the first control valve is controlled to be closed, the second control valve is kept open, and only fresh air in the air pipe provides cold energy. When the indoor temperature is reduced to 23 ℃, the second control valve is controlled to be closed, and only the fan of the fan coil keeps running at a low speed, so that the supercooling phenomenon in the low load in summer is avoided.
For another example, assuming that the indoor temperature is 24.5 ℃, the current operation mode is the cooling mode, the set temperature is 25 ℃, the first preset temperature value is 24 ℃, the second preset temperature value is 23 ℃, and the third preset temperature value is 26 ℃. Then the control device of the fan coil determines that the temperature of 24.5 ℃ is higher than 24 ℃, controls the second control valve to be opened, determines that the temperature of 24.5 ℃ is lower than 25 ℃, and adjusts the wind speed of the fan coil to a low speed gear, and only fresh air in the air pipe bears indoor cold load. When the indoor temperature is reduced to 23 ℃, the second control valve is controlled to be closed.
If the current operation mode is a heating mode, the control device of the fan coil can control the first control valve to be opened when the indoor temperature is smaller than or equal to the set temperature, and control the first control valve to be closed when the indoor temperature is larger than or equal to a third preset temperature value. And the second control valve can be controlled to be opened when the indoor temperature is greater than or equal to the set temperature, and the second control valve can be controlled to be closed when the indoor temperature is less than or equal to the first preset temperature value. Thus, the indoor temperature is smaller than or equal to the set temperature, which indicates that the heating requirement exists, at the moment, the first control valve is controlled to be opened, so that hot water in the water pipe provides heat for the indoor space, and when the indoor temperature is larger than or equal to the third preset temperature, namely T+1, the first control valve is controlled to be closed, the problem that the indoor temperature is too high in winter is avoided, and at the moment, the indoor space is in a fresh air cooling state. And the indoor temperature is greater than or equal to the set temperature to indicate that the refrigerating demand exists, at the moment, the second control valve is controlled to be opened, so that fresh air in the air pipe provides cold for the indoor space, and when the indoor temperature is reduced to a first preset temperature value, namely T-1, the second control valve is controlled to be closed, and the problem of excessively low indoor temperature in winter is avoided. The system can replace the traditional 4-control or partition 2-control air conditioning system to realize different requirements of rooms with different time periods on indoor temperature in winter or transitional seasons, thereby reducing the running cost of the air conditioner.
Correspondingly, when the current operation mode is a heating mode, the wind speed of the fan coil is controlled as follows: if the current operation mode is a heating mode, when the indoor temperature is smaller than or equal to a first preset temperature value, the wind speed of the fan coil is adjusted to an upper limit value; when the indoor temperature is larger than a first preset temperature value and smaller than a set temperature, the wind speed of the fan coil is adjusted to a first set value; and when the indoor temperature is greater than or equal to the set temperature, the wind speed of the fan coil is adjusted to a second set value.
It should be noted that, the current operation mode may further include a duty heating mode, in which, when the indoor temperature is less than or equal to a set temperature value, for example, 5 ℃, the first control valve is controlled to be opened to provide heat for the indoor, until the indoor temperature reaches 10 ℃, the first control valve is controlled to be closed, and the second control valve is kept to be closed all the time, so that the indoor temperature is not supercooled during the night in winter or the holiday, and the room can be effectively prevented from freezing.
According to the control method of the fan coil, after the indoor temperature and the current operation mode are obtained, the switch of the first control valve arranged on the water pipe can be controlled, the switch of the second control valve arranged on the air pipe can be controlled, and the wind speed of the fan coil can be adjusted according to the current operation mode and the comparison result of the indoor temperature and the set temperature. Therefore, on the basis of wind speed control of the fan coil, the control of the switch of the first control valve and the switch of the second control valve is added to control the cooling quantity or the heating quantity, and the accuracy of indoor temperature control is improved. And because the second control valve is installed on the tuber pipe, through the switch of control second control valve in summer, can control the cold volume that the new trend provided to avoid the supercooling condition in the time of the low load in summer, not only improved room comfort level and saved the running cost of air conditioner.
And the control of the second control valve indirectly controls the humidity of the room, so that the comfort level of the room is further improved.
Fig. 3 is a schematic diagram of a control device for a fan coil according to an embodiment of the present invention, where, as shown in fig. 3, the control device for a fan coil may include: a controller 31, a memory 32, a communication interface 33 and a communication bus 34.
The following describes the components of the fan coil control apparatus in detail with reference to fig. 3:
The controller 31 is a control center of a fan coil control apparatus, and may be one controller or a generic name of a plurality of processing elements. For example, the controller 31 is a central processing unit (Central Processing Unit, CPU), may be an Application SPECIFIC INTEGRATED Circuit (ASIC), or may be one or more integrated circuits configured to implement embodiments of the present invention, such as: one or more digital signal processors (DIGITAL SIGNAL processors, DSPs), or one or more field programmable gate arrays (Field Programmable GATE ARRAY, FPGA).
The Memory 32 may be, but is not limited to, read-Only Memory (ROM) or other type of static storage device that can store static information and instructions, random access Memory (Random Access Memory, RAM) or other type of dynamic storage device that can store information and instructions, as well as electrically erasable programmable Read-Only Memory (ELECTRICALLY ERASABLE PROGRAMMABLE READ-Only Memory, EEPROM), compact disc Read-Only Memory (Compact Disc Read-Only Memory) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 32 may be stand alone and be connected to the controller 31 via a communication bus 34. The memory 32 may also be integrated with the controller 31.
In a specific implementation, the memory 32 is used to store data in the present invention and to execute software programs of the present invention. The controller 31 may perform various functions of the fan coil control by running or executing software programs stored in the memory 32 and invoking data stored in the memory 32.
The communication interface 33 uses any transceiver-like means for communicating with other devices or communication networks, such as a radio access network (Radio Access Network, RAN), a wireless local area network (Wireless Local Area Networks, WLAN), etc. The communication interface 33 may include a receiving unit implementing a receiving function and a transmitting unit implementing a transmitting function.
Communication bus 34 may be an industry standard architecture (Industry Standard Architecture, ISA) bus, an external device interconnect (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in fig. 3, but not only one bus or one type of bus.
From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above.
The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the present invention is not limited thereto, but any changes or substitutions within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A control method of a fan coil, which is applied to a control device of the fan coil, and is characterized in that the control device of the fan coil comprises: the method comprises the following steps of:
acquiring indoor temperature and a current operation mode, wherein the current operation mode comprises a refrigeration mode and a heating mode;
controlling the switch of the first control valve and the second control valve according to the current running mode and the comparison result of the indoor temperature and the set temperature, and adjusting the wind speed of the fan coil;
And controlling the opening and closing of the first control valve and the second control valve according to the current operation mode and the comparison result of the indoor temperature and the set temperature, wherein the method comprises the following steps:
If the current operation mode is the refrigeration mode, when the indoor temperature is greater than or equal to the set temperature, the first control valve is controlled to be opened, and until the indoor temperature is less than or equal to a first preset temperature value, the first control valve is controlled to be closed, and the first preset temperature value is less than the set temperature;
when the indoor temperature is greater than or equal to the first preset temperature value, the second control valve is controlled to be opened, and when the indoor temperature is less than or equal to a second preset temperature value, the second control valve is controlled to be closed, and the second preset temperature value is smaller than the first preset temperature value;
And controlling the opening and closing of the first control valve and the second control valve according to the current operation mode and the comparison result of the indoor temperature and the set temperature, wherein the method comprises the following steps:
if the current operation mode is the heating mode, when the indoor temperature is smaller than or equal to the set temperature, the first control valve is controlled to be opened, and until the indoor temperature is larger than or equal to a third preset temperature value, the first control valve is controlled to be closed, wherein the third preset temperature value is larger than the set temperature;
and when the indoor temperature is greater than or equal to the set temperature, controlling the second control valve to be opened until the indoor temperature is less than or equal to the first preset temperature value, and controlling the second control valve to be closed.
2. The method of controlling a fan coil according to claim 1, wherein said adjusting a wind speed of the fan coil comprises:
If the current operation mode is the refrigeration mode, when the indoor temperature is greater than or equal to a third preset temperature value, the wind speed of the fan coil is adjusted to a preset upper limit value;
When the indoor temperature is higher than the set temperature and lower than the third preset temperature value, the wind speed of the fan coil is adjusted to a first set value, and the first set value is lower than the upper limit value;
And when the indoor temperature is less than or equal to the set temperature, the wind speed of the fan coil is adjusted to a second set value, and the second set value is less than the first set value.
3. The method of controlling a fan coil according to claim 2, wherein said adjusting a wind speed of the fan coil comprises:
if the current operation mode is the heating mode, when the indoor temperature is smaller than or equal to the first preset temperature value, the wind speed of the fan coil is adjusted to the upper limit value;
When the indoor temperature is larger than the first preset temperature value and smaller than the set temperature, the wind speed of the fan coil is adjusted to the first set value;
And when the indoor temperature is greater than or equal to the set temperature, adjusting the wind speed of the fan coil to the second set value.
4. A control device for a fan coil, the control device comprising: the device comprises a fan coil, a water pipe and a mixed air static pressure box which are connected with the fan coil, an air pipe which is connected with the mixed air static pressure box, a first control valve which is arranged on the water pipe, a second control valve which is arranged on the air pipe and a controller;
the controller is used for acquiring indoor temperature and a current operation mode, wherein the current operation mode comprises a refrigeration mode and a heating mode; controlling the switch of the first control valve and the second control valve according to the current running mode and the comparison result of the indoor temperature and the set temperature, and adjusting the wind speed of the fan coil;
If the current operation mode is the refrigeration mode, when the indoor temperature is greater than or equal to the set temperature, the first control valve is controlled to be opened, and until the indoor temperature is less than or equal to a first preset temperature value, the first control valve is controlled to be closed, and the first preset temperature value is less than the set temperature;
when the indoor temperature is greater than or equal to the first preset temperature value, the second control valve is controlled to be opened, and when the indoor temperature is less than or equal to a second preset temperature value, the second control valve is controlled to be closed, and the second preset temperature value is smaller than the first preset temperature value;
if the current operation mode is the heating mode, when the indoor temperature is smaller than or equal to the set temperature, the first control valve is controlled to be opened, and until the indoor temperature is larger than or equal to a third preset temperature value, the first control valve is controlled to be closed, wherein the third preset temperature value is larger than the set temperature;
and when the indoor temperature is greater than or equal to the set temperature, controlling the second control valve to be opened until the indoor temperature is less than or equal to the first preset temperature value, and controlling the second control valve to be closed.
5. The fan coil control apparatus of claim 4, wherein the fan coil is a three speed fan coil, the controller being specifically configured to:
If the current operation mode is the refrigeration mode, when the indoor temperature is greater than or equal to a third preset temperature value, the wind speed of the fan coil is adjusted to a preset upper limit value;
When the indoor temperature is higher than the set temperature and lower than the third preset temperature value, the wind speed of the fan coil is adjusted to a first set value, and the first set value is lower than the upper limit value;
And when the indoor temperature is less than or equal to the set temperature, the wind speed of the fan coil is adjusted to a second set value, and the second set value is less than the first set value.
6. The fan coil control apparatus of claim 5, wherein the controller is specifically configured to:
if the current operation mode is the heating mode, when the indoor temperature is smaller than or equal to the first preset temperature value, the wind speed of the fan coil is adjusted to the upper limit value;
When the indoor temperature is larger than the first preset temperature value and smaller than the set temperature, the wind speed of the fan coil is adjusted to the first set value;
And when the indoor temperature is greater than or equal to the set temperature, adjusting the wind speed of the fan coil to the second set value.
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| CN110657549B (en) * | 2019-10-14 | 2020-11-06 | 珠海格力电器股份有限公司 | Temperature controller, fan coil air conditioning system and control method thereof |
| CN110779176A (en) * | 2019-11-11 | 2020-02-11 | 广东美的制冷设备有限公司 | Electronic equipment, air conditioner and control method and control device of air conditioner |
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| CN1322280C (en) * | 2004-11-19 | 2007-06-20 | 杨东 | Intelligent type draught fan coil pipe and operation control method thereof |
| CN202485112U (en) * | 2012-01-16 | 2012-10-10 | 卓旦春 | Fan coil system in central air conditioner |
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| CN107120729A (en) * | 2017-06-07 | 2017-09-01 | 江苏大翔科技有限公司 | Internet of Things purification fan coil of new generation |
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