CN110779085A - Fan coil, control device and control method - Google Patents
Fan coil, control device and control method Download PDFInfo
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- CN110779085A CN110779085A CN201911105573.XA CN201911105573A CN110779085A CN 110779085 A CN110779085 A CN 110779085A CN 201911105573 A CN201911105573 A CN 201911105573A CN 110779085 A CN110779085 A CN 110779085A
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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
- 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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a fan coil, a control device and a control method, wherein the control method comprises the following steps: acquiring actual return air temperature and actual outlet air temperature; determining a target air outlet temperature according to the actual air return temperature; determining a target opening degree of a mixing valve of a cold medium and a hot medium of the fan coil according to the actual air outlet temperature and the target air outlet temperature; and adjusting the opening of the mixing valve according to the target opening. Compared with the prior art, the control method provided by the invention has the advantages that the air outlet temperature is adjusted by changing the opening degree of the mixing valve, so that the air outlet temperature is more stable, the comfort of the fan coil is improved, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a fan coil control device and a control method.
Background
Fan coils are important end devices in central air conditioning systems to blow heat exchanged air into the environment to condition the air temperature. Along with the improvement of people's standard of living, the user has proposed higher requirement to the travelling comfort of air conditioner, but current fan coil's control mode is single, and the travelling comfort is relatively poor, mainly has following problem:
the air-out temperature is the important travelling comfort index of air conditioner, the experience that the air-out temperature is too high or low can direct influence user is experienced, fan coil during operation at present, mainly control the switch of fan and heat transfer medium feed liquor valve through setting for the relation between temperature and the return air temperature, heat transfer medium temperature mainly is decided by the heat transfer medium that air conditioner refrigeration/heating system provided, the medium temperature that gets into fan coil heat exchanger has great fluctuation, influence the stability and the suitability of air-out temperature, fan coil's air-out temperature is difficult to control. And fan and the frequent switch of feed liquor valve can cause the air-out temperature unstable, and room temperature field and wind field are inhomogeneous, influence the user and feel experience. The fan is started and stopped when the fan is started, intermittent noise is generated, the hearing of a user is influenced, and discomfort is caused.
Disclosure of Invention
The invention solves the problem of how to control the air outlet temperature of the fan coil and improve the comfort of the fan coil.
In order to solve the problems, the invention provides a control method of a fan coil, which comprises the following steps:
acquiring actual return air temperature and actual outlet air temperature;
determining a target air outlet temperature according to the actual air return temperature;
determining a target opening degree of a mixing valve of a cold medium and a hot medium of the fan coil according to the actual air outlet temperature and the target air outlet temperature;
and adjusting the mixing valve to reach the target opening degree.
The control method of the fan coil has the beneficial effects that: the temperature of the heat exchange medium entering the fan coil heat exchanger is adjusted by changing the opening degree of the mixing valve, so that the air outlet temperature of the fan coil is indirectly adjusted, and the air outlet temperature is stabilized at a proper temperature point. Compared with the prior art, the control method provided by the invention has the advantages that the air outlet temperature is more accurately adjusted, and the temperature fluctuation caused in the adjusting process is small, so that the use comfort is improved, and the user experience is improved.
Optionally, the determining a target opening degree of a mixing valve of a cold medium and a hot medium of a fan coil according to the actual air outlet temperature and the target air outlet temperature specifically includes:
determining an opening change value of the mixing valve according to the actual air outlet temperature and the target air outlet temperature;
and adding the opening change value and the current opening of the mixing valve to obtain the target opening of the mixing valve.
The target opening degree of the mixing valve is adjusted on the basis of the current opening degree, the actual environment condition is met, the adjusting precision is high, and the air outlet temperature cannot fluctuate greatly.
Optionally, the determining, according to the actual outlet air temperature and the target outlet air temperature, an opening variation value of the mixing valve specifically includes:
determining an interval to which a difference value between the actual air outlet temperature and the target air outlet temperature belongs;
and determining the opening change value of the corresponding mixing valve according to the interval to which the difference value between the actual air outlet temperature and the target air outlet temperature belongs.
The opening change value of the mixing valve corresponding to the temperature difference interval is preset, the opening change value is larger when the temperature difference is larger, the air outlet temperature reaches the appropriate temperature as soon as possible, and the adjusting precision of the air outlet temperature can be improved by reducing the interval range so as to increase the comfort level.
Optionally, the determining a target outlet air temperature according to the actual return air temperature specifically includes:
determining the interval to which the actual return air temperature belongs;
and determining the corresponding target air outlet temperature according to the interval to which the actual return air temperature belongs.
And setting a corresponding target air outlet temperature according to the actual air return temperature interval. And presetting the target air outlet temperature corresponding to the environment temperature interval, so that the environment temperature reaches the appropriate temperature as soon as possible, and the user requirements are met.
Optionally, the control method further includes the steps of:
judging whether the interval time of the step of determining the target opening degree of a mixing valve of the cold medium and the heat medium of the fan coil according to the actual air outlet temperature and the target air outlet temperature reaches a set period or not;
and if the set period is reached, executing the step of determining the target opening degree of a mixing valve of the cold medium and the heat medium of the fan coil according to the actual air outlet temperature and the target air outlet temperature.
And intermittently executing the step of determining the opening of the mixing valve, wherein a buffer time is provided after the opening adjustment is completed every time, so that the situation that the temperature change feedback is not timely due to the excessively fast adjustment of the mixing valve is avoided.
Optionally, the control method further includes the steps of:
and controlling the fan of the fan coil to keep a stable running state.
The fan is always maintained in the same running state, the noise is generated when the fan is turned on and turned off, the environment temperature is adjusted by adjusting the medium temperature instead of adjusting the air volume, the temperature and air volume fluctuation caused by adjusting the wind gear of the fan is avoided, and the running of the fan coil is more stable and reliable.
Optionally, the control method further includes the steps of:
judging whether the relation between the actual return air temperature and the target environment temperature set by the fan coil meets a set condition or not;
and if the set conditions are met, controlling a hot medium liquid inlet valve of the fan coil, a cold medium liquid inlet valve of the fan coil and the mixing valve to be in a closed state.
When the return air temperature is close to the target environment temperature, the environment temperature reaches the state required by a user, and the liquid inlet valve of the fan coil can be closed at the moment so as to keep the air outlet temperature stable.
The invention also provides a control device of the fan coil, which comprises
The system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for detecting the actual return air temperature and the actual outlet air temperature;
the processing unit is used for determining a target air outlet temperature according to the actual air return temperature; determining the target opening degree of a mixing valve of a cold medium and a hot medium of the fan coil according to the actual air outlet temperature and the target air outlet temperature;
a control unit for controlling the mixing valve to reach the target opening.
The control device of the fan coil can change the temperature of the heat exchange medium entering the fan coil by adjusting the opening of the mixing valve, so that the air outlet temperature is accurately adjusted, the fluctuation of the air outlet temperature is reduced, the use comfort of the fan coil is improved, and the user experience is improved.
The invention also provides a control device, which comprises a memory and a controller;
the memory for storing a computer program;
the controller is configured to implement the control method of the fan coil as described above when executing the computer program.
Compared with the prior art, the control device and the control method of the invention have the same advantages, and are not described again.
The invention also provides a fan coil, which comprises the control device, an air return inlet, an air outlet, a cold medium inlet, a hot medium inlet, a cold medium outlet, a hot medium outlet, a first temperature sensor and a second temperature sensor, wherein the cold medium inlet is provided with a cold medium liquid inlet valve, the hot medium inlet is provided with a hot medium liquid inlet valve, a mixing valve is arranged between the cold medium inlet and the hot medium inlet, the first temperature sensor is arranged at the air return inlet, and the second temperature sensor is arranged at the air outlet.
The four-pipe fan coil can meet the requirements of cooling and heating at the same time, the mixing valve can change the temperature of a heat exchange medium entering the fan coil heat exchanger, the accurate control of the air outlet temperature is realized, and the stability and the comfort of the fan coil are improved.
Drawings
FIG. 1 is a side view of the fan coil of the present invention;
FIG. 2 is a schematic view of a heat exchange medium inlet flow path of the fan coil of the present invention;
FIG. 3 is a schematic structural view of a control device for a fan coil in accordance with the present invention;
FIG. 4 is a flow chart of a fan coil control method of the present invention.
Description of reference numerals:
1-a cold medium inlet, 2-a heat medium inlet, 3-a cold medium outlet, 4-a heat medium outlet, 5-a cold medium liquid inlet valve, 6-a heat medium liquid inlet valve, 7-a mixing valve, 8-a shell, 9-a volute, 11-an acquisition unit, 12-a processing unit and 13-a control unit;
CWS cold media in and HWS hot media in.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that terms such as "upper", "lower", "front", "rear", "left", "right", and the like in the embodiments indicate terms of orientation, and are used only for simplifying the positional relationship based on the drawings of the specification, and do not represent that the elements, devices, and the like indicated in the description must operate according to the specific orientation and the defined operation, method, and configuration, and such terms are not to be construed as limiting the present invention.
In the drawings of the embodiments of the present invention, a coordinate system XY is provided, in which a forward direction of X represents a forward direction, a backward direction of X represents a backward direction, a forward direction of Y axis represents an upward direction, and a backward direction of Y axis represents a downward direction.
In addition, the terms "first" and "second" mentioned in the embodiments of the present invention are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
An embodiment of the present invention provides a fan coil of an air conditioner, the fan coil includes a housing 8, a fan and a heat exchanger, as shown in fig. 1, an air outlet is provided on the front side of the housing 8, the heat exchanger is installed inside the housing 8, and the fan is installed on the rear side of the housing 8. The fan is used for blowing and comprises a motor, a wind wheel, a volute 9 and the like, and an air return opening is formed in the volute 9. The heat exchanger is used for exchanging heat for air entering the shell 8 and comprises a heat exchange tube, fins and the like. When the fan coil works, the fan is started, air in the environment enters the volute 9 from the air return inlet, heat exchange is realized through the heat exchanger, and the air is blown out from the air outlet of the shell 8, so that the environment temperature is adjusted.
The fan coil of this embodiment is four pipe system fan coil, and the side of shell 8 is equipped with the valve plate, is equipped with four circulating medium mouths that communicate with the heat exchanger on the valve plate, is cold medium import 1, hot medium import 2, cold medium export 3 and hot medium export 4 respectively. The cold medium inlet 1 is used for inputting cold medium of an air conditioning system to the heat exchanger, and the cold medium outlet 3 is used for outputting the cold medium in the heat exchanger to form a cold medium circulation loop; the heat medium inlet 2 is used for inputting the heat medium of the air conditioning system to the heat exchanger, and the heat medium outlet 4 is used for outputting the heat medium in the heat exchanger to form a heat medium circulation loop. Commonly used heat exchange in air conditioners includes water, heat transfer oil, heat transfer solution, and the like. The four-tube fan coil can meet the requirements of cooling and heating at the same time, and cold media and hot media are introduced into different heat exchange tubes of the heat exchanger, so that stable operation of the system is facilitated.
Referring to fig. 2, the straight line in the figure is the medium conveying pipeline, and the arrow indicates the medium flow direction. The cold medium inlet 1 is provided with a cold medium liquid inlet valve 5 for cutting off a cold medium circulation loop, and the hot medium inlet 2 is provided with a hot medium liquid inlet valve 6 for cutting off a hot medium circulation loop. In the cooling mode of the fan coil, the cold medium liquid inlet valve 5 is in an open state, the hot medium liquid inlet valve 6 is in a closed state, the cold medium circulation pipeline is conducted, and the temperature of air is reduced after the air flows through the heat exchanger. In the heating mode of the fan coil, the cold medium liquid inlet valve 5 is in a closed state, the hot medium liquid inlet valve 6 is in an open state, the hot medium circulation pipeline is conducted, and the temperature of air is increased after the air flows through the heat exchanger. A communicating pipe is arranged between the cold medium inlet 1 and the heat medium inlet 2 and used for mixing the cold medium and the heat medium and adjusting the temperature of the heat exchange medium. Be equipped with mixing valve 7 on communicating pipe, mixing valve 7 aperture is adjustable, can accurate control get into the heat transfer medium's of heat exchanger temperature, and then realizes the accurate control of air-out temperature. The cold medium liquid inlet valve 5, the hot medium liquid inlet valve 6 and the mixing valve 7 are all electrically operated valves, so that the fan coil can be automatically controlled.
Referring to fig. 3, the present embodiment provides a control device for a fan coil, which is used for controlling the operation state of the fan coil. The control device comprises an acquisition unit 11, a processing unit 12 and a control unit 13. Wherein the acquisition unit 11 includes first temperature sensor and second temperature sensor, and first temperature sensor sets up in fan coil's return air department for detect return air temperature, indoor ambient temperature promptly, and second temperature sensor sets up in fan coil's air outlet department for detect air-out temperature. The processing unit 12 is configured to determine a target opening degree of the mixing valve according to the acquisition result of the acquisition unit 11. The control unit 13 is used for controlling the opening and closing of the cold medium liquid inlet valve 5, the heat medium liquid inlet valve 6 and the mixing valve 7. The processing unit 12 and the obtaining unit 11 are both electrically connected to the control unit 13, and the control unit 13 can adjust the opening of the mixing valve 7 according to the determination result of the processing unit 12. The control device of the fan coil can change the temperature of a heat exchange medium entering the heat exchanger by adjusting the opening degree of the mixing valve 7, so that the air outlet temperature is accurately adjusted, the temperature fluctuation of the air outlet is reduced, and the comfort of the fan coil is improved.
The embodiment provides a fan coil, which has a control device, the control device includes a memory and a controller, the memory is used for storing a computer program, the controller is used for implementing a control method of the fan coil when executing the computer program, and as shown in fig. 4, the control method includes the following steps:
s100: and controlling the fan coil to start, and keeping the fan in a stable running state. The fan is always maintained in the same running state, and the fluctuation of the air outlet temperature caused by the noise and the change of the air volume when the fan is started and stopped is avoided.
S200: and setting a target environment temperature Ts, and enabling the fan coil to enter a cooling or heating mode. If the fan coil is in the refrigeration mode, controlling a cold medium liquid inlet valve 5 of the fan coil to be in an open state, controlling a hot medium liquid inlet valve 6 to be in a closed state, circulating a cold medium circulation flow path, and cutting off the hot medium circulation flow path; if the fan coil is in a heating mode, the hot medium liquid inlet valve 6 is controlled to be in an open state, the cold medium liquid inlet valve 5 is controlled to be in a closed state, the hot medium circulating flow path circulates, and the cold medium circulating flow path is cut off.
S300: the first temperature sensor acquires the actual return air temperature Th, and the second temperature sensor acquires the actual outlet air temperature Tc.
S400: and determining the target air outlet temperature Tm according to the obtained actual air return temperature Th. The actual return air temperature Th may be preset, and the corresponding target outlet air temperature Tm may be set. And the corresponding target air outlet temperature Tm is set according to the ambient temperature, so that the ambient temperature can reach the appropriate temperature as soon as possible, and the use requirements of users are met.
S500: and according to the set period t, determining the target opening Fm of the mixing valve of the fan coil according to the actual air outlet temperature Tc and the target air outlet temperature Tm. The step of determining the opening degree of the mixing valve 7 is executed intermittently, and a buffer time is reserved after the mixing valve 7 is adjusted every time, so that the situation that the temperature change is too fast to be adjusted and the feedback is not timely is avoided.
The target opening degree is calculated by the formula of Fm F0+ △ F,
where Fm is a target opening degree of the mixing valve, F0 is a current opening degree of the mixing valve, and △ F is an opening degree change value of the mixing valve.
The target opening degree of the mixing valve is adjusted on the basis of the current opening degree, the actual environment condition is met, the temperature adjustment is accurate, and the large temperature fluctuation is avoided.
The interval of the temperature difference between the actual outlet air temperature Tc and the target outlet air temperature Tm may be preset, and the opening change value △ F of the corresponding mixing valve may be set, where the larger the temperature difference is, the larger the opening change value △ F is, so that the outlet air reaches an appropriate temperature as soon as possible.
S600: and adjusting the opening degree of the mixing valve 7 according to the determined target opening degree Fm. The temperature of a medium entering the fan coil heat exchanger is adjusted by adjusting the opening degree of the mixing valve 7, so that the air outlet temperature of the fan coil is indirectly adjusted, and the air outlet temperature is stabilized at a proper temperature point.
S700: and when the relation between the actual return air temperature Th and the target environment temperature Ts set by the fan coil meets the set condition, closing the cold medium liquid inlet valve 5, the hot medium liquid inlet valve 6 and the mixing valve 7. At the moment, the ambient temperature reaches the state required by the user, and the liquid inlet valve of the heat exchanger is closed to keep the air outlet temperature stable.
The control method of the embodiment is used for operating the fan coil, the fan is always maintained in the same operation state, noise generated by the fan can be reduced, the air outlet temperature and the environment temperature are changed by adjusting the temperature of the heat exchange medium, the fan coil can operate more stably and reliably, the temperature fluctuation of air outlet is reduced, the comfort of the fan coil is improved, and user experience is improved.
Another embodiment of the present invention provides a fan coil having a control device, the control device including a memory for storing a computer program and a controller for implementing a control method of the fan coil when executing the computer program, the control method including the steps of:
s100: and controlling the fan coil to start, and maintaining the low-wind-gear operation of the fan.
S200: setting a target environment temperature Ts, controlling a cold medium liquid inlet valve 5 of the fan coil to be in an open state and controlling a hot medium liquid inlet valve 6 of the fan coil to be in a closed state when the fan coil is in a refrigeration mode. The cold medium of the fan coil is cold water, and the hot medium is hot water.
S300: the first temperature sensor acquires the actual return air temperature Th, and the second temperature sensor acquires the actual outlet air temperature Tc.
S400: and determining the interval to which the actual return air temperature Th belongs, and determining the corresponding target outlet air temperature Tm. Presetting the interval of the actual return air temperature Th, and setting the corresponding target outlet air temperature Tm, specifically: th is more than 22 ℃ at 29 ℃, and Tm is 20 ℃; th is more than 29 ℃ at 34 ℃, and Tm is 17 ℃; th is more than 34 ℃ at 38 ℃, and Tm is 20 ℃; th > 38 ℃ and Tm ═ 13 ℃. For example, when the actual return air temperature Th is detected to be 39 ℃, the target outlet air temperature Tm is determined to be 13 ℃.
S500: and determining the target opening Fm of the mixing valve of the fan coil according to the set period t. The period t is set to 40s, i.e., the target opening Fm of the mixing valve is determined every 40 s.
The target opening degree is calculated according to the formula of Fm being F0+ △ F, wherein Fm is the target opening degree of the mixing valve, F0 is the current opening degree of the mixing valve, and △ F is the opening degree change value of the mixing valve.
Determining an interval to which a difference value between the actual outlet air temperature Tc and the target outlet air temperature Tm belongs, determining an opening change value △ F of the corresponding mixing valve, presetting an interval of a temperature difference value between the actual outlet air temperature Tc and the target outlet air temperature Tm, and setting an opening change value △ F of the corresponding mixing valve, wherein the maximum opening of the mixing valve 7 is 360 degrees, the minimum opening is 0 degrees, if the temperature is more than or equal to-0.5 ℃ and less than or equal to Tc-Tm is less than or equal to 0.5 ℃, △ F is 0 degrees, the opening of the current mixing valve 7 is maintained, if the temperature is more than 0.5 ℃ and less than or equal to Tc-2 ℃, △ F is-5 degrees, namely the mixing valve 7 is turned off by 5 degrees, the heat medium entering a heat exchanger is reduced, the temperature of the heat exchange medium is reduced, the outlet air temperature is indirectly reduced to be close to the target outlet air temperature Tm, if the temperature is more than 2 ℃ and less than or equal to 5 ℃, △ F is turned to-8 degrees, namely the mixing valve 7 is turned off by 8 degrees, if the temperature is more than Tc-Tm is greater than 5 ℃, △.
S600: and according to the determined target opening Fm, adjusting the opening of the mixing valve 7 within the adjustable opening interval of the mixing valve 7.
S700: judging that the relation between the actual return air temperature Th and the target environment temperature Ts set by the fan coil meets the set conditions: Th-Ts is less than or equal to 1 ℃, if the preset condition is met, the cold medium liquid inlet valve 5 and the mixing valve 7 are controlled to be closed, and the fan keeps running at a low wind gear.
Another embodiment of the present invention provides a fan coil having a control device, the control device including a memory for storing a computer program and a controller for implementing a control method of the fan coil when executing the computer program, the control method including the steps of:
s100: and controlling the fan coil to start, and maintaining the low-wind-gear operation of the fan.
S200: and setting a target environment temperature Ts, controlling a hot medium liquid inlet valve 6 of the fan coil to be in an open state and controlling a cold medium liquid inlet valve 5 of the fan coil to be in a closed state when the fan coil is in a heating mode. The cold medium of the fan coil is cold water, and the hot medium is hot water.
S300: the first temperature sensor acquires the actual return air temperature Th, and the second temperature sensor acquires the actual outlet air temperature Tc.
S400: and determining the interval to which the actual return air temperature Th belongs, and determining the corresponding target outlet air temperature Tm. The range of the actual return air temperature Th is preset, and the corresponding target outlet air temperature Tm is set. Specifically, the method comprises the following steps: th is more than or equal to 0 ℃ and is more than-10 ℃, and Tm is 50 ℃; the temperature of 10 ℃ is more than or equal to Th and more than 0 ℃, and the Tm is 45 ℃; 22 ℃ and the Tm is 40 ℃, wherein Th is more than 10 ℃.
S500: and determining the target opening Fm of the mixing valve of the fan coil according to the set period t. The period t is set to 40s, i.e., the target opening Fm of the mixing valve is determined every 40 s.
The target opening degree is calculated according to the formula of Fm being F0+ △ F, wherein Fm is the target opening degree of the mixing valve, F0 is the current opening degree of the mixing valve, and △ F is the opening degree change value of the mixing valve.
The method comprises the steps of determining a section to which a difference value between an actual outlet air temperature Tc and a target outlet air temperature Tm belongs, determining an opening change value △ F of a corresponding mixing valve, presetting the section of the temperature difference value between the actual outlet air temperature Tc and the target outlet air temperature Tm, setting an opening change value △ F of the corresponding mixing valve, specifically, setting the maximum opening of the mixing valve 7 to be 360 degrees, setting the minimum opening to be 0 degrees and △ F to be 0 degrees if the temperature of Tc-Tm is greater than or equal to-0.5 degrees and less than or equal to 0.5 degrees, maintaining the opening of the current mixing valve 7, setting the opening of △ F to be 5 degrees if the temperature of the mixing valve 7 is greater than 5 degrees, increasing a cold medium entering a heat exchanger, thereby reducing the temperature of the heat exchange medium, indirectly reducing the outlet air temperature to be close to the target outlet air temperature Tm, setting the temperature of the outlet air to be close to Tm if the temperature of Tc-Tm is greater than 2 degrees and less than or equal to 5 degrees, setting the opening of the mixing valve 7 to be 8 degrees, setting the mixing valve 7 to be 8.
S600: and according to the determined target opening Fm, adjusting the opening of the mixing valve 7 within the adjustable opening interval of the mixing valve 7.
S700: judging that the relation between the actual return air temperature Th and the target environment temperature Ts set by the fan coil meets the set conditions: Th-Ts is more than or equal to 1 ℃, if the preset condition is met, the heat medium liquid inlet valve 6 and the mixing valve 7 are controlled to be closed, and the fan keeps running at low wind.
Another embodiment of the present invention provides a fan coil having a control device, the control device including a memory for storing a computer program and a controller for implementing a control method of the fan coil when executing the computer program, the control method including the steps of:
s100: and controlling the fan coil to start, and maintaining the low-wind-gear operation of the fan.
S200: setting a target environment temperature Ts, controlling a cold medium liquid inlet valve 5 of the fan coil to be in an open state and controlling a hot medium liquid inlet valve 6 of the fan coil to be in a closed state when the fan coil is in a refrigeration mode. The cold medium of the fan coil is cold water, and the hot medium is hot water.
S300: the first temperature sensor acquires the actual return air temperature Th, and the second temperature sensor acquires the actual outlet air temperature Tc.
S400: and determining the interval to which the actual return air temperature Th belongs, and determining the corresponding target outlet air temperature Tm. . Presetting the interval of the actual return air temperature Th, and setting the corresponding target outlet air temperature Tm, specifically: at 23 ℃ more than or equal to Th more than 20 ℃, and Tm is 20 ℃; at 26 ℃ or more, Th is more than 23 ℃, and Tm is 18 ℃; th is more than 26 ℃ at 29 ℃, and Tm is 16 ℃; th is more than 29 ℃ at the temperature of 32 ℃, and Tm is 14 ℃; the temperature of 35 ℃ is more than or equal to Th and more than 32 ℃, and the Tm is 12 ℃; at 39 ℃, more than or equal to Th more than 36 ℃, and Tm is 10 ℃; th > 39 ℃ and Tm-8 ℃.
S500: and determining the target opening Fm of the mixing valve of the fan coil according to the set period t. The period t is set to 30s, i.e., the target opening Fm of the mixing valve is determined every 30 s.
The target opening degree is calculated according to the formula of Fm being F0+ △ F, wherein Fm is the target opening degree of the mixing valve, F0 is the current opening degree of the mixing valve, and △ F is the opening degree change value of the mixing valve.
The method comprises the steps of determining a section to which a difference between an actual air outlet temperature Tc and a target air outlet temperature Tm belongs, determining an opening change value △ F of a corresponding mixing valve, presetting the section of the temperature difference between the actual air outlet temperature Tc and the target air outlet temperature Tm, and setting an opening change value △ F of the corresponding mixing valve, wherein specifically, the maximum opening of the mixing valve 7 is 360 degrees, the minimum opening is 0 degrees, if the temperature of the actual air outlet temperature Tc is not more than 0.5 ℃ and the temperature of the Tc-Tm is not more than 0.5 ℃, △ F is 0 degrees, and the opening of the current mixing valve 7 is maintained, if the temperature of the mixing valve is 0.5 ℃ and the temperature of the Tc-Tm is not more than 1 ℃, △ F is-3, namely the mixing valve 7 is 3 degrees, if the temperature of the mixing valve is 1 ℃ and the Tc-Tm is not more than 6 degrees, namely the mixing valve 7 is 6 degrees, if the temperature of the mixing valve 7 is not more than 6 degrees, if the temperature of the mixing valve is 3 ℃ and the temperature of the Tc-Tm is not more than 6 ℃, then the temperature of the mixing valve 7 is 3878 degrees, namely the mixing valve 7 degrees, namely the temperature of the mixing valve 7 degrees is not more than.
S600: and according to the determined target opening Fm, adjusting the opening of the mixing valve 7 within the adjustable opening interval of the mixing valve 7.
S700: judging that the relation between the actual return air temperature Th and the target environment temperature Ts set by the fan coil meets the set conditions: Th-Ts is less than or equal to 0.5 ℃, if the preset condition is met, the cold medium liquid inlet valve 5 and the mixing valve 7 are controlled to be closed, and the fan keeps running at a low wind gear.
Another embodiment of the present invention provides a fan coil having a control device, the control device including a memory for storing a computer program and a controller for implementing a control method of the fan coil when executing the computer program, the control method including the steps of:
s100: and controlling the fan coil to start, and maintaining the low-wind-gear operation of the fan.
S200: and setting a target environment temperature Ts, controlling a hot medium liquid inlet valve 6 of the fan coil to be in an open state and controlling a cold medium liquid inlet valve 5 of the fan coil to be in a closed state when the fan coil is in a heating mode. The cold medium of the fan coil is cold water, and the hot medium is hot water.
S300: the first temperature sensor acquires the actual return air temperature Th, and the second temperature sensor acquires the actual outlet air temperature Tc.
S400: and determining the interval to which the actual return air temperature Th belongs, and determining the corresponding target outlet air temperature Tm. . The range of the actual return air temperature Th is preset, and the corresponding target outlet air temperature Tm is set. Specifically, the method comprises the following steps: th is more than or equal to 5 ℃ below zero and 10 ℃ below zero, and Tm is 55 ℃; the temperature of minus 5 ℃ is more than or equal to Th > 0 ℃, and the Tm is 50 ℃; the temperature of 5 ℃ is more than or equal to Th and more than 0 ℃, and the Tm is 45 ℃; the temperature of 10 ℃ is more than or equal to Th and more than 5 ℃, and the Tm is 40 ℃; th is more than 10 ℃ at 15 ℃, and Tm is 38 ℃; at 20 deg.C, Th is greater than 15 deg.C, and Tm is 35 deg.C.
S500: and determining the target opening Fm of the mixing valve of the fan coil according to the set period t. The period t is set to 60s, i.e., the target opening Fm of the mixing valve is determined every 60 s.
The target opening degree is calculated according to the formula of Fm being F0+ △ F, wherein Fm is the target opening degree of the mixing valve, F0 is the current opening degree of the mixing valve, and △ F is the opening degree change value of the mixing valve.
The method comprises the steps of determining a section to which a difference value between an actual air outlet temperature Tc and a target air outlet temperature Tm belongs, determining an opening change value △ F of a corresponding mixing valve, presetting the section of the temperature difference value between the actual air outlet temperature Tc and the target air outlet temperature Tm, and setting an opening change value △ F of the corresponding mixing valve, wherein the maximum opening of the mixing valve 7 is 360 degrees, the minimum opening is 0 degrees, if the temperature of-0.5 ℃ is not less than Tc-Tm is not more than 0.5 ℃, △ F is 0 degrees, the opening of the current mixing valve 7 is maintained, if the temperature of 0.5 ℃ is not less than Tc-Tm is not more than 1 ℃, △ F is 3 degrees, the mixing valve 7 is 3 degrees, if the temperature of 1 ℃ is not more than Tc-Tm is not more than 1 ℃, the mixing valve 7 is 3 degrees, if the temperature of 1 ℃ is not more than Tc-Tm is not more than 3 ℃, △ F is 6 degrees, the mixing valve 7 is 6 degrees, if the temperature of 3 ℃ is not more than Tc-Tm is not more than 6 ℃, the temperature of 2F is 8 degrees, the mixing valve 7 degrees is 8 degrees, if the temperature of 6 degrees, the temperature of 6 ℃ is not more than.
S600: and according to the determined target opening Fm, adjusting the opening of the mixing valve 7 within the adjustable opening interval of the mixing valve 7.
S700: judging that the relation between the actual return air temperature Th and the target environment temperature Ts set by the fan coil meets the set conditions: Th-Ts is more than or equal to 0.5 ℃, if the preset condition is met, the heat medium liquid inlet valve 6 and the mixing valve 7 are controlled to be closed, and the fan keeps running at a low wind gear.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A control method of a fan coil is characterized by comprising the following steps:
acquiring actual return air temperature and actual outlet air temperature;
determining a target air outlet temperature according to the actual air return temperature;
determining a target opening degree of a mixing valve of a cold medium and a hot medium of the fan coil according to the actual air outlet temperature and the target air outlet temperature;
and adjusting the mixing valve to reach the target opening degree.
2. A method for controlling a fan coil according to claim 1, wherein determining a target opening of a mixing valve for a cold medium and a hot medium of a fan coil according to the actual outlet air temperature and the target outlet air temperature specifically comprises:
determining an opening change value of the mixing valve according to the actual air outlet temperature and the target air outlet temperature;
and adding the opening change value and the current opening of the mixing valve to obtain the target opening of the mixing valve.
3. The method for controlling the fan coil according to claim 2, wherein determining the opening degree variation value of the mixing valve according to the actual air outlet temperature and the target air outlet temperature specifically includes:
determining an interval to which a difference value between the actual air outlet temperature and the target air outlet temperature belongs;
and determining the opening change value of the corresponding mixing valve according to the interval to which the difference value between the actual air outlet temperature and the target air outlet temperature belongs.
4. The method of controlling a fan coil according to claim 1, wherein determining a target outlet air temperature based on the actual return air temperature specifically comprises:
determining the interval to which the actual return air temperature belongs;
and determining the corresponding target air outlet temperature according to the interval to which the actual return air temperature belongs.
5. A method of controlling a fan coil as set forth in claim 1, further comprising the steps of:
judging whether the interval time of the step of determining the target opening degree of a mixing valve of the cold medium and the heat medium of the fan coil according to the actual air outlet temperature and the target air outlet temperature reaches a set period or not;
and if the set period is reached, executing the step of determining the target opening degree of a mixing valve of the cold medium and the heat medium of the fan coil according to the actual air outlet temperature and the target air outlet temperature.
6. A method of controlling a fan coil as set forth in claim 1, further comprising the steps of:
and controlling the fan of the fan coil to keep a stable running state.
7. A method of controlling a fan coil as set forth in claim 1, further comprising the steps of:
judging whether the relation between the actual return air temperature and the target environment temperature set by the fan coil meets a set condition or not;
and if the set conditions are met, controlling a hot medium liquid inlet valve of the fan coil, a cold medium liquid inlet valve of the fan coil and the mixing valve to be in a closed state.
8. A control device is characterized by comprising
The system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for detecting the actual return air temperature and the actual outlet air temperature;
the processing unit is used for determining a target air outlet temperature according to the actual air return temperature; determining the target opening degree of a mixing valve of a cold medium and a hot medium of the fan coil according to the actual air outlet temperature and the target air outlet temperature;
a control unit for controlling the mixing valve to reach the target opening.
9. A control device comprising a memory and a controller;
the memory for storing a computer program;
the controller, when executing the computer program, for implementing a method of controlling a fan coil according to any of claims 1 to 7.
10. A fan coil, characterized by, include the controlling means and return air inlet, air outlet, cold medium import (1), hot medium import (2), cold medium export (3), hot medium export (4), first temperature sensor, second temperature sensor of claim 9, be equipped with cold medium feed liquor valve (5) on cold medium import (1), be equipped with hot medium feed liquor valve (6) on hot medium import (2), be equipped with mixing valve (7) between cold medium import (1) and hot medium import (2), first temperature sensor set up in return air inlet department, second temperature sensor set up in air outlet department.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115682279A (en) * | 2022-10-18 | 2023-02-03 | 珠海格力电器股份有限公司 | Equipment control method and device, electronic equipment and storage medium |
| CN115711464A (en) * | 2022-10-20 | 2023-02-24 | 青岛海尔空调器有限总公司 | Interconnection control method and device for air conditioner and gas stove and air conditioner |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203364339U (en) * | 2013-06-18 | 2013-12-25 | 中信建筑设计研究总院有限公司 | Four-tube fan coil system |
| CN203785331U (en) * | 2014-03-06 | 2014-08-20 | 广东美的暖通设备有限公司 | Heat exchanger and fan coil provided with same |
| JP2014190655A (en) * | 2013-03-28 | 2014-10-06 | Panasonic Corp | Four-way cassette air conditioner |
| EP3045840A1 (en) * | 2013-09-25 | 2016-07-20 | Samsung Electronics Co., Ltd. | Air conditioner |
| US20170227250A1 (en) * | 2002-03-06 | 2017-08-10 | John Chris Karamanos | Embedded heat exchanger with support mechanism |
| CN107631437A (en) * | 2017-09-26 | 2018-01-26 | 湖北中航安智技术有限公司 | A kind of fan coil control on demand system and its control method |
| CN108825839A (en) * | 2018-05-24 | 2018-11-16 | 中建三局安装工程有限公司 | The prefabricated valve group of coil pipe of 4-pipe blower |
| US20190170451A1 (en) * | 2014-01-29 | 2019-06-06 | Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) Limited | Air Conditioner |
| CN208998175U (en) * | 2018-09-20 | 2019-06-18 | 仪征祥源动力供应有限公司 | Fan coil pipe type air-conditioner set |
| CN109931687A (en) * | 2019-02-22 | 2019-06-25 | 珠海格力电器股份有限公司 | Heat exchanger and temperature adjusting system with same |
| CN110017580A (en) * | 2019-04-17 | 2019-07-16 | 宁波奥克斯电气股份有限公司 | Fan coil and Cooling and Heat Source equipment mode interlock control method, device and air conditioner |
| US20190247786A1 (en) * | 2016-02-23 | 2019-08-15 | The Boeing Company | Centrifugal air separator coil manufacturing methods |
| CN209295328U (en) * | 2018-12-21 | 2019-08-23 | 广东志高暖通设备股份有限公司 | A kind of four-pipe system air-conditioning system with cold and hot double source |
| CN110160249A (en) * | 2018-02-11 | 2019-08-23 | 浙江盾安机电科技有限公司 | Heat-exchanging component and air-conditioner set |
-
2019
- 2019-11-13 CN CN201911105573.XA patent/CN110779085B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170227250A1 (en) * | 2002-03-06 | 2017-08-10 | John Chris Karamanos | Embedded heat exchanger with support mechanism |
| JP2014190655A (en) * | 2013-03-28 | 2014-10-06 | Panasonic Corp | Four-way cassette air conditioner |
| CN203364339U (en) * | 2013-06-18 | 2013-12-25 | 中信建筑设计研究总院有限公司 | Four-tube fan coil system |
| EP3045840A1 (en) * | 2013-09-25 | 2016-07-20 | Samsung Electronics Co., Ltd. | Air conditioner |
| US20190170451A1 (en) * | 2014-01-29 | 2019-06-06 | Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) Limited | Air Conditioner |
| CN203785331U (en) * | 2014-03-06 | 2014-08-20 | 广东美的暖通设备有限公司 | Heat exchanger and fan coil provided with same |
| US20190247786A1 (en) * | 2016-02-23 | 2019-08-15 | The Boeing Company | Centrifugal air separator coil manufacturing methods |
| CN107631437A (en) * | 2017-09-26 | 2018-01-26 | 湖北中航安智技术有限公司 | A kind of fan coil control on demand system and its control method |
| CN110160249A (en) * | 2018-02-11 | 2019-08-23 | 浙江盾安机电科技有限公司 | Heat-exchanging component and air-conditioner set |
| CN108825839A (en) * | 2018-05-24 | 2018-11-16 | 中建三局安装工程有限公司 | The prefabricated valve group of coil pipe of 4-pipe blower |
| CN208998175U (en) * | 2018-09-20 | 2019-06-18 | 仪征祥源动力供应有限公司 | Fan coil pipe type air-conditioner set |
| CN209295328U (en) * | 2018-12-21 | 2019-08-23 | 广东志高暖通设备股份有限公司 | A kind of four-pipe system air-conditioning system with cold and hot double source |
| CN109931687A (en) * | 2019-02-22 | 2019-06-25 | 珠海格力电器股份有限公司 | Heat exchanger and temperature adjusting system with same |
| CN110017580A (en) * | 2019-04-17 | 2019-07-16 | 宁波奥克斯电气股份有限公司 | Fan coil and Cooling and Heat Source equipment mode interlock control method, device and air conditioner |
Non-Patent Citations (1)
| Title |
|---|
| 李传胜: "空调水系统四管制采用的讨论", 《制冷空调与电力机械》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115682279A (en) * | 2022-10-18 | 2023-02-03 | 珠海格力电器股份有限公司 | Equipment control method and device, electronic equipment and storage medium |
| CN115711464A (en) * | 2022-10-20 | 2023-02-24 | 青岛海尔空调器有限总公司 | Interconnection control method and device for air conditioner and gas stove and air conditioner |
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| Publication number | Publication date |
|---|---|
| CN110779085B (en) | 2021-04-02 |
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