CN117128613A - Anti-condensation method and system of floor radiation system and electronic equipment - Google Patents

Anti-condensation method and system of floor radiation system and electronic equipment Download PDF

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Publication number
CN117128613A
CN117128613A CN202311170054.8A CN202311170054A CN117128613A CN 117128613 A CN117128613 A CN 117128613A CN 202311170054 A CN202311170054 A CN 202311170054A CN 117128613 A CN117128613 A CN 117128613A
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CN
China
Prior art keywords
fresh air
floor
temperature
controlling
radiation system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311170054.8A
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Chinese (zh)
Inventor
李宏波
丁文涛
苏彬文
李业明
杨金龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202311170054.8A priority Critical patent/CN117128613A/en
Publication of CN117128613A publication Critical patent/CN117128613A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/43—Defrosting; Preventing freezing of indoor units
    • 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
    • F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
    • 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
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0053—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted at least partially below the floor; with air distribution below the floor
    • 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
    • F24F11/46—Improving electric energy efficiency or saving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—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
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • 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
    • F24F2110/12—Temperature of the outside air
    • 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
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/70—Carbon dioxide
    • 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)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application relates to a dew prevention method and system for a floor radiation system and electronic equipment, wherein the method comprises the following steps: acquiring a control instruction, wherein the control instruction is a start-up instruction or a stop instruction; and controlling the running states of the floor radiation system and the fresh air system according to the control instruction, wherein the fresh air system is used for dehumidifying the indoor air under the condition that the floor radiation system is in a starting-up stage or a stopping stage so as to control the floor temperature value to be higher than the upper limit value of the dew point temperature of the indoor air. Therefore, the indoor air can be dehumidified by the fresh air system under the condition that the floor radiation system is in a startup phase or a shutdown phase, and the phenomenon of floor condensation caused by overhigh indoor air humidity is effectively prevented, so that the application range of the floor radiation system is widened.

Description

Anti-condensation method and system of floor radiation system and electronic equipment
Technical Field
The application relates to the technical field of air conditioning systems, in particular to a dew prevention method and system for a floor radiation system and electronic equipment.
Background
With the continuous development of social science and technology, the human living standard is continuously improved, and the demands for central heating and cooling in daily life are also increased. The floor radiation system is not widely used as an air conditioning system with small investment and high comfort, and the important reason is that when the temperature of the floor surface of the floor radiation system is low, the indoor wet air contacts the floor surface to easily generate the dewing phenomenon.
Therefore, how to effectively prevent the dewing phenomenon of the floor radiation system and increase the application range of the floor radiation system becomes a technical problem to be solved urgently.
Disclosure of Invention
The application provides a dewing prevention method, a dewing prevention system and electronic equipment of a floor radiation system, and aims to solve the problem that the application range of the floor radiation system is limited because dewing phenomenon easily occurs in the floor radiation system in the prior art.
In a first aspect, the present application provides a method of preventing condensation in a floor radiant system, the method comprising:
acquiring a control instruction, wherein the control instruction is a start-up instruction or a stop instruction;
and controlling the running states of the floor radiation system and the fresh air system according to the control instruction, wherein the fresh air system is used for dehumidifying indoor air under the condition that the floor radiation system is in a starting-up stage or a stopping stage so as to control the floor temperature value to be higher than the upper limit value of the dew point temperature of the indoor air.
According to the technical means, the introduced fresh air can be dehumidified by the fresh air system under the condition that the floor radiation system is in the startup phase or the shutdown phase, so that the indoor air is dehumidified, the phenomenon of floor condensation caused by overhigh indoor air humidity is effectively prevented, and the application range of the floor radiation system is widened.
Optionally, the controlling the operation states of the floor radiation system and the fresh air system according to the control instruction includes:
controlling the fresh air system to operate in a dehumidification mode under the condition that the control instruction is the starting instruction, wherein the dehumidification mode is used for dehumidifying indoor air;
under the condition that the indoor air humidity reaches a preset humidity range, controlling the fresh air system to exit the dehumidification mode and controlling the floor radiation system to operate in a first cooling mode, wherein the first cooling mode is that the floor radiation system provides first-temperature cold water to radiate and cool a floor;
and under the condition that the operation time of the floor radiation system in the first cooling mode reaches a first preset time, controlling the floor radiation system to operate in a second cooling mode, wherein the second cooling mode is that the floor radiation system provides second temperature cold water for radiation cooling of the floor, and the temperature of the second temperature cold water is lower than that of the first temperature cold water.
According to the technical means, the fresh air system can be started to dehumidify indoor air before the floor radiation system is started, so that the phenomenon of floor condensation can be effectively prevented. After the floor radiation system is started, the first temperature cold water is provided for radiation precooling of the floor, and the second temperature cold water is provided for radiation cooling of the floor, so that a user cannot feel obvious temperature jump, and the comfort level of the user is improved.
Optionally, the method further comprises:
and controlling the fresh air system to operate in a refrigeration mode under the condition that the operation time of the floor radiation system in the second cooling mode reaches a second preset time, wherein the refrigeration mode is used for supplementing the indoor air.
According to the technical means, the fresh air system can be utilized to bear all latent heat load and part of sensible heat load in the room, and the room is supplemented with cold, so that the temperature of the room in the cold supply season is ensured to be within a control range. In addition, the fresh air system can be used for cooling and humidity control, and the problem of uneven temperature and humidity distribution of the floor radiation system is effectively solved.
Optionally, the controlling the fresh air system to operate in a refrigeration mode includes:
acquiring outdoor environment temperature and indoor set temperature;
when the outdoor environment temperature is higher than the indoor set temperature, a fresh air valve in the fresh air system is controlled to be closed;
and controlling a fresh air valve in the fresh air system to be opened under the condition that the outdoor environment temperature is less than or equal to the indoor set temperature.
According to the technical means, the latent heat and sensible heat load of outdoor fresh air can be reduced as much as possible when fresh air is introduced into the fresh air system, and the cooling energy consumption is reduced.
Optionally, the controlling the fresh air system to operate in a refrigeration mode includes:
acquiring the concentration of indoor carbon dioxide;
controlling a fresh air valve in the fresh air system to be opened under the condition that the indoor carbon dioxide concentration is larger than a preset concentration threshold value;
and under the condition that the indoor carbon dioxide concentration is smaller than or equal to a preset concentration threshold value, controlling a fresh air valve in the fresh air system to be closed.
According to the technical means, the introducing amount of the fresh air can be ensured, so that the effect of constant oxygen is achieved.
Optionally, the controlling the operation states of the floor radiation system and the fresh air system according to the control instruction includes:
when the control instruction is the shutdown instruction, controlling the floor radiation system to operate in a third cooling mode and controlling the fresh air system to operate in a dehumidification mode, wherein the third cooling mode is that the floor radiation system supplies third-temperature cold water to cool indoor air;
and under the condition that the floor temperature value is higher than the upper limit value of the dew point temperature, controlling the floor radiation system and the fresh air system to stop running, wherein the floor temperature value is acquired based on a floor temperature sensor in the floor radiation system, and the range of the dew point temperature is determined based on an indoor air temperature acquired based on an air temperature sensor in the floor radiation system and an indoor air humidity acquired based on an air humidity sensor.
According to the technical means, before the floor radiation system and the fresh air system are closed, the floor radiation system is controlled to operate in the third cooling mode so as to properly improve the floor temperature, and the fresh air system is controlled to operate in the dehumidifying mode so as to adjust the humidity value of indoor air, and the fresh air system is started to dehumidify the indoor air, so that the phenomenon of dewing on the floor after the system is stopped can be effectively prevented.
Optionally, the controlling the fresh air system to operate in a dehumidification mode includes:
acquiring the floor temperature value and the value range of the dew point temperature;
and controlling the opening degree of a fresh air valve in the fresh air system and the running frequency of a fresh air unit in the fresh air system according to the difference value of the floor temperature value and the upper limit value of the dew point temperature.
According to the technical means, the opening degree of the fresh air valve in the fresh air system and the running frequency of the fresh air unit in the fresh air system can be controlled according to the difference value of the floor temperature value and the upper limit value of the dew point temperature, so that an accurate control strategy following the dew point temperature is realized.
In a second aspect, the present application provides an anti-condensation system for a floor radiation system, comprising: the intelligent controller is respectively connected with the upper computer, the floor radiation system and the fresh air system;
the upper computer is used for receiving triggering operation of a user and generating a control instruction according to the triggering operation;
the intelligent controller is used for receiving a control instruction sent by the upper computer; and controlling the running states of the floor radiation system and the fresh air system according to the control instruction, wherein the fresh air system is used for dehumidifying indoor air under the condition that the floor radiation system is in a starting-up stage or a stopping stage so as to control the floor temperature value to be higher than the upper limit value of the dew point temperature of the indoor air.
In a third aspect, the present application provides an electronic device, including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory complete communication with each other through the communication bus;
a memory for storing a computer program;
a processor for implementing the steps of the anti-condensation method of the floor radiation system according to any one of the first aspects when executing the program stored on the memory.
In a fourth aspect, the present application also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the anti-condensation method of the floor radiation system of any of the first aspects.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: according to the method provided by the embodiment of the application, the control instruction is acquired, and the control instruction is a starting instruction or a stopping instruction; and controlling the running states of the floor radiation system and the fresh air system according to the control instruction, wherein the fresh air system is used for dehumidifying indoor air under the condition that the floor radiation system is in a starting-up stage or a stopping stage so as to control the floor temperature value to be higher than the upper limit value of the dew point temperature of the indoor air. Through the mode, the indoor air can be dehumidified by the fresh air system under the condition that the floor radiation system is in the startup phase or the shutdown phase, so that the phenomenon of floor condensation caused by overhigh indoor air humidity is effectively prevented, and the application range of the floor radiation system is widened.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
Fig. 1 is a schematic flow chart of a method for preventing condensation of a floor radiation system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an anti-condensation system of a floor radiation system according to an embodiment of the present application;
FIG. 3 is a schematic flow chart of a staged control method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The following disclosure provides many different embodiments, or examples, for implementing different structures of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
In order to solve the problem that the application range of the floor radiation system is limited because the floor radiation system is easy to generate the dewing phenomenon in the prior art, the application provides an anti-dewing method, an anti-dewing system and electronic equipment of the floor radiation system, which can effectively prevent the floor radiation system from generating the dewing phenomenon.
Referring to fig. 1, fig. 1 is a schematic flow chart of an anti-condensation method of a floor radiation system according to an embodiment of the present application. As shown in fig. 1, the dew prevention method of the floor radiation system may include the steps of:
step 101, a control instruction is acquired, wherein the control instruction is a start-up instruction or a stop instruction.
It should be noted that, the anti-condensation method of the floor radiation system provided in the embodiment of the present application may be applied to the intelligent controller 210, where the intelligent controller 210 is respectively connected with the upper computer 220, the floor radiation system 230 and the fresh air system 240 to form an anti-condensation system of the floor radiation system, as shown in fig. 2. The upper computer 220 can be used for realizing the functions of man-machine interaction, system monitoring, event recording, data recording, alarm reminding and the like; the intelligent controller 210 may be used to implement logic processing, control program writing, and other functions; the floor radiant system 230 may include a modular machine for controlling the water supply temperature, a variable frequency water pump for controlling the water supply flow, a radiant floor heating coil for radiant cooling or heating, and various sensors (e.g., a floor temperature sensor, an air humidity sensor, a carbon dioxide sensor, a dew point temperature sensor, etc.). The floor radiant system 230 can be used by a modular machine to directly supply cold water to the radiant floor, which supplies cold to the room, taking up most of the sensible heat load in the room. The fresh air system 240 may include a fresh air unit, an air supply valve, a fresh air valve, a return air valve, and various sensors (e.g., a wind speed sensor, an air supply temperature sensor, etc.). The fresh air system 240 can be used for processing all latent heat and sensible heat loads of outdoor fresh air, and simultaneously bears all latent heat loads and part of sensible heat loads in the room, so that the temperature and humidity of indoor air are ensured, and the phenomenon of dew formation is avoided; and the room can be supplemented with cold, so that the temperature of the room in the cold supply season is ensured to be in a control range; in addition, the introducing amount of the fresh air can be ensured, so that the effect of constant oxygen is achieved. Specifically, the floor temperature sensor herein is used to collect the floor temperature; the dew point temperature sensor is used for collecting indoor dew point temperature; the air temperature sensor is used for collecting indoor air temperature; the air humidity sensor is used for collecting indoor air humidity; the carbon dioxide sensor collects the carbon dioxide concentration in the indoor air; the wind speed sensor is used for monitoring the wind speed of the air supply of the fresh air system; the air supply temperature sensor is used for monitoring the air supply temperature of the fresh air system; the air supply valve and the return air valve are used for adjusting the air supply amount and the return air amount of the fresh air system, and the fresh air valve is used for adjusting the replacement amount of indoor air and outdoor air.
In this step, the intelligent controller may receive the control instruction sent from the upper computer, or may generate the control instruction itself, which is not specifically limited in the embodiment of the present application. The control instruction may be a start-up instruction or a stop instruction, where the start-up instruction refers to an instruction for controlling the floor radiation system and the fresh air system to start up and run, and the stop instruction refers to an instruction for controlling the floor radiation system and the fresh air system to stop running.
And 102, controlling the running states of the floor radiation system and the fresh air system according to the control instruction, wherein the fresh air system is used for dehumidifying the indoor air when the floor radiation system is in a starting-up stage or a stopping stage so as to control the floor temperature value to be higher than the upper limit value of the dew point temperature of the indoor air.
In this step, after receiving the control instruction, the intelligent controller may perform different control on the operation states of the floor radiation system and the fresh air system according to the type of the control instruction, so that the fresh air system may dehumidify the indoor air when the floor radiation system is in the on-state or the off-state, so as to control the floor temperature value to be higher than the upper limit value of the dew point temperature of the indoor air.
In this embodiment, because the humidity of the indoor air is high when the floor radiation system is in the start-up stage, if the indoor air is directly subjected to floor radiation refrigeration without dehumidification, dew condensation is likely to occur on the floor; when the floor radiation system is in a shutdown stage, the temperature and humidity fluctuation of indoor air is large, so that the dew point temperature also changes, and if the temperature and humidity of the indoor air are not controlled, the dew condensation on the floor is easy to occur, so that the introduced fresh air can be dehumidified by the fresh air system under the condition that the floor radiation system is in a startup stage or a shutdown stage, the indoor air is dehumidified, the floor dew phenomenon caused by the overhigh indoor air humidity is effectively prevented, and the application range of the floor radiation system is widened.
Further, the step 102 of controlling the operation states of the floor radiation system and the fresh air system according to the control instruction includes:
under the condition that the control instruction is a starting instruction, controlling the fresh air system to operate in a dehumidification mode, wherein the dehumidification mode is used for dehumidifying indoor air;
under the condition that the indoor air humidity reaches a preset humidity range, controlling the fresh air system to exit a dehumidification mode and controlling the floor radiation system to operate in a first cooling mode, wherein the first cooling mode refers to that the floor radiation system provides first-temperature cold water to radiate and cool a floor;
and under the condition that the operation time of the floor radiation system in the first cooling mode reaches the first preset time, controlling the floor radiation system to operate in a second cooling mode, wherein the second cooling mode is that the floor radiation system provides second temperature cold water for radiation cooling of the floor, and the temperature of the second temperature cold water is lower than that of the first temperature cold water.
Specifically, the preset humidity range, the temperature of the first temperature cold water, the temperature of the second temperature cold water, and the first preset time period may be set according to actual needs, and are not limited herein. As an alternative implementation mode, the preset humidity range can be 40% -70%, so that the requirement of a user on air humidity can be met, and the anti-condensation effect can be better achieved. The first temperature cold water can be 18-20 ℃, the second temperature cold water can be 7-15 ℃, and the specific temperatures of the first temperature cold water and the second temperature cold water can be determined by the module machine according to the indoor air temperature and the indoor set temperature. The first preset time period may be 30 minutes.
In an embodiment, when the control instruction received by the intelligent controller is a start-up instruction, the intelligent controller can control the fresh air system to operate in a dehumidification mode to dehumidify indoor air, and when the indoor air humidity reaches a preset humidity range, the intelligent controller controls the fresh air system to exit the dehumidification mode again and controls the floor radiation system to operate in a first cooling mode to provide first-temperature cold water for radiation precooling of a floor; when the operation time of the floor radiation system in the first cooling mode reaches a first preset time, the intelligent controller controls the floor radiation system to operate in the second cooling mode again, and the floor is provided with cold water with a second temperature to perform radiation cooling.
Through the mode, before the floor radiation system is started, the fresh air system is started to dehumidify indoor air, so that the phenomenon of floor condensation can be effectively prevented. After the floor radiation system is started, the first temperature cold water is provided for radiation precooling of the floor, and the second temperature cold water is provided for radiation cooling of the floor, so that a user cannot feel obvious temperature jump, and the comfort level of the user is improved.
Further, the method further comprises:
and controlling the fresh air system to operate in a refrigeration mode under the condition that the operation time length of the floor radiation system in the second cooling mode reaches a second preset time length, wherein the refrigeration mode is used for supplementing the cooling of indoor air.
Specifically, the second preset duration may be set according to actual needs, which is not specifically limited herein. As an alternative embodiment, the second preset time period may be 30 minutes.
In an embodiment, when the operation duration of the floor radiation system in the second cooling mode reaches a second preset duration, the intelligent controller may control the fresh air system to operate in the cooling mode so as to supplement cooling to indoor air. Therefore, the fresh air system can bear all latent heat load and part of sensible heat load in the room, and supplement the cold for the room, so that the temperature of the room in the cold supply season is ensured to be within a control range. In addition, the fresh air system can be used for cooling and humidity control, and the problem of uneven temperature and humidity distribution of the floor radiation system is effectively solved.
Further, the step of controlling the fresh air system to operate in a refrigeration mode includes:
acquiring outdoor environment temperature and indoor set temperature;
when the outdoor environment temperature is higher than the indoor set temperature, a fresh air valve in the fresh air system is controlled to be closed;
and under the condition that the outdoor environment temperature is less than or equal to the indoor set temperature, controlling a fresh air valve in the fresh air system to be opened.
Specifically, the outdoor ambient temperature refers to the temperature of the outdoor air collected by the outdoor temperature sensor, and the indoor set temperature refers to a desired temperature value set by a user.
In an embodiment, when the intelligent controller controls the fresh air system to operate in a refrigeration mode, the intelligent controller can also acquire the outdoor environment temperature and the indoor set temperature, compare the outdoor environment temperature with the indoor set temperature, and control a fresh air valve in the fresh air system to be closed when the outdoor environment temperature is greater than the indoor set temperature; and when the outdoor environment temperature is less than or equal to the indoor set temperature, controlling a fresh air valve in the fresh air system to be opened. Therefore, when fresh air is introduced into the fresh air system, the latent heat and sensible heat load of outdoor fresh air can be reduced as much as possible, and the cooling energy consumption is reduced.
Further, the step of controlling the fresh air system to operate in a refrigeration mode includes:
acquiring the concentration of indoor carbon dioxide;
under the condition that the indoor carbon dioxide concentration is larger than a preset concentration threshold value, a fresh air valve in a fresh air system is controlled to be opened;
and under the condition that the indoor carbon dioxide concentration is less than or equal to a preset concentration threshold value, controlling a fresh air valve in the fresh air system to be closed.
Specifically, the indoor carbon dioxide concentration refers to the concentration of carbon dioxide in the room collected by the carbon dioxide sensor. The preset concentration threshold may be set according to actual needs, and is not specifically limited herein. As an alternative embodiment, the preset concentration threshold may be a concentration of 1000 mg/l.
In an embodiment, when the intelligent controller controls the fresh air system to operate in a refrigeration mode, the intelligent controller can also acquire the indoor carbon dioxide concentration, compare the indoor carbon dioxide concentration with a preset concentration threshold value, and control a fresh air valve in the fresh air system to be opened when the indoor carbon dioxide concentration is greater than the preset concentration threshold value; and when the indoor carbon dioxide concentration is less than or equal to a preset concentration threshold value, controlling a fresh air valve in the fresh air system to be closed. Thus, the introducing amount of the fresh air can be ensured, and the effect of constant oxygen is achieved.
Further, the step 102 of controlling the operation states of the floor radiation system and the fresh air system according to the control instruction includes:
under the condition that the control instruction is a shutdown instruction, controlling the floor radiation system to operate in a third cooling mode and controlling the fresh air system to operate in a dehumidification mode, wherein the third cooling mode refers to that the floor radiation system provides cold water with a third temperature to precool indoor air;
and under the condition that the floor temperature value is higher than the upper limit value of the dew point temperature, controlling the floor radiation system and the fresh air system to stop running, wherein the floor temperature value is acquired based on a floor temperature sensor in the floor radiation system, and the range of the dew point temperature value is determined based on the indoor air temperature acquired based on an air temperature sensor in the floor radiation system and the indoor air humidity acquired based on an air humidity sensor.
In an embodiment, when the control instruction received by the intelligent controller is a shutdown instruction, the intelligent controller may first control the floor radiation system to operate in the third cooling mode to properly raise the floor temperature, and control the fresh air system to operate in the dehumidification mode to adjust the humidity value of the indoor air, until the floor temperature value is higher than the upper limit value of the dew point temperature, and then control the floor radiation system and the fresh air system to stop operating. In addition, as an alternative embodiment, the third temperature cold water may be cold water at 18 to 20 ℃. The range of the dew point temperature is affected by the humidity and the temperature of the indoor air, and is a variable parameter. For example, when the indoor air temperature is 26 ℃, and the indoor air humidity is 60% -70%, the corresponding dew point temperature is 17.6 ℃ -20.1 ℃, and at this time, if the floor temperature value is higher than 20.1 ℃, the occurrence of the dewing phenomenon can be avoided.
By the mode, before the floor radiation system and the fresh air system are closed, the floor radiation system is controlled to be in the third cooling mode to properly improve the floor temperature, the fresh air system is controlled to be in the dehumidifying mode to adjust the humidity value of indoor air, and the fresh air system is started to dehumidify the indoor air, so that the phenomenon of dewing on the floor after the system is stopped can be effectively prevented.
Further, the step of controlling the fresh air system to operate in a dehumidification mode includes:
acquiring a floor temperature value and a dew point temperature value range;
and controlling the opening degree of a fresh air valve in the fresh air system and the running frequency of a fresh air unit in the fresh air system according to the difference value of the floor temperature value and the upper limit value of the dew point temperature.
In an embodiment, when the intelligent controller controls the fresh air system to operate in the dehumidification mode, the opening degree of the fresh air valve in the fresh air system and the operation frequency of the fresh air unit in the fresh air system can be controlled according to the difference value of the floor temperature value and the upper limit value of the dew point temperature, so that an accurate control strategy following the dew point temperature is realized. For example, when the floor temperature value is close to the upper limit value of the dew point temperature, the fresh air valve can be adjusted to be in a 100% open state, and the running frequency of the fresh air unit in the fresh air system is adjusted to be maximum, so that the indoor temperature and humidity are reduced rapidly, the dew point temperature of a room is controlled strictly, and dew condensation is prevented.
In an embodiment, the anti-condensation method of the floor radiation system provided by the embodiment of the application is to dynamically introduce a fresh air system into the floor radiation system without an indoor air disc, and the method is combined with a staged control method, so that the problem that the floor is easy to condensation in the refrigeration quaternary floor radiation system is solved while energy is saved and consumption is reduced. The staged control method is shown in fig. 3, and specifically comprises the following steps:
starting up: the indoor environment is a high-temperature high-humidity environment, and the fresh air parameter and the indoor environment parameter are main factors influencing dew condensation. In this stage, the fresh air system can be started to dehumidify, the indoor air humidity is reduced to 40% -70%, and dew condensation is prevented; then the module machine directly supplies 18-20 ℃ high-temperature cold water (namely the first temperature cold water) for precooling, and the radiation floor supplies cold to the room to bear most sensible heat load in the room; after the high-temperature water is precooled for 30min, the module machine directly supplies low-temperature water (namely cold water with the second temperature in the above) with the temperature of 7-15 ℃ for radiation to cool, and after the low-temperature water is cooled for 30min, a fresh air system is started to supplement the cold, and the fresh air system processes all latent heat and sensible heat loads of outdoor fresh air and simultaneously bears all latent heat loads and part of sensible heat loads in the room, so that the temperature and humidity of indoor air are ensured, and dew condensation is avoided. When the fresh air system is subjected to cold supplementing, if the outdoor environment temperature is higher than the indoor set temperature (such as 33.5 ℃), the fresh air valve is closed, and if the outdoor environment temperature is lower than or equal to the indoor set temperature, the fresh air valve is opened, and part of fresh air is introduced.
And (3) an operation stage: the indoor load varies with the design parameters, and is an important factor affecting the occurrence of the floor condensation problem. In this stage, the module machine directly supplies low-temperature water of 7-15 ℃ for cooling, the water supply temperature can be controlled according to the indoor air temperature, and the fresh air system is used for supplementing cooling. When the fresh air system is subjected to cold supplementing, if the outdoor environment temperature is higher than the indoor set temperature (such as 33.5 ℃), the fresh air valve is closed, and if the outdoor environment temperature is lower than or equal to the indoor set temperature, the fresh air valve is opened, and part of fresh air is introduced. And the fresh air is introduced according to the indoor carbon dioxide concentration index. The indoor carbon dioxide concentration standard is generally below 1000 PPM. The dew point temperature is followed at this stage, and a wind-water linkage control strategy is adopted, so that the occurrence risk of dew condensation problems under different working conditions is reduced. That is, the floor radiant system is responsible for most of the sensible heat load in the room at this stage, and the fresh air system is responsible for all of the latent heat load and some of the sensible heat load in the room. The floor radiation system performs radiation precooling and cooling; and the fresh air system is used for cooling and dew point temperature control.
And (3) stopping: the indoor temperature and humidity are gradually increased, and the indoor wet load and fresh air parameters are the main reasons for influencing the occurrence of the dew condensation problem. In this stage, the module machine supplies 18-20deg.C high-temperature water, the floor temperature is compared with dew point temperature, if the floor temperature is lower than the upper limit value of dew point temperature, the fresh air valve is regulated to 100% proportion opening, the fresh air system is set in dehumidification mode, the wind speed is regulated to maximum, the indoor temperature and humidity are reduced, the dew point temperature of the room is strictly controlled, and dew condensation is prevented.
With continued reference to fig. 2, fig. 2 is a schematic structural diagram of an anti-condensation system of a floor radiation system according to an embodiment of the present application. As shown in fig. 2, the dewing prevention system of the floor radiation system includes: the intelligent controller 210, the upper computer 220, the floor radiation system 230 and the fresh air system 240 are respectively connected with the upper computer 220, the floor radiation system 230 and the fresh air system 240;
the upper computer 220 is configured to receive a trigger operation of a user, and generate a control instruction according to the trigger operation;
the intelligent controller 210 is configured to receive a control instruction sent by the upper computer 220; according to the control instruction, the operation states of the floor radiation system 230 and the fresh air system 240 are controlled, wherein the fresh air system 240 is used for dehumidifying the indoor air when the floor radiation system 230 is in the on-state or the off-state, so as to control the floor temperature value to be higher than the upper limit value of the dew point temperature of the indoor air.
It should be noted that, the anti-condensation system of the floor radiation system may implement the steps of the anti-condensation method of the floor radiation system in the above embodiment, and achieve the same technical effects, which are not described in detail herein.
As shown in fig. 4, the embodiment of the present application further provides an electronic device, which includes a processor 411, a communication interface 412, a memory 413, and a communication bus 414, where the processor 411, the communication interface 412, and the memory 413 complete communication with each other through the communication bus 414;
a memory 413 for storing a computer program;
in one embodiment of the present application, the processor 411 is configured to implement the anti-condensation method of the floor radiation system provided in any one of the foregoing method embodiments when executing the program stored in the memory 413, where the method includes:
acquiring a control instruction, wherein the control instruction is a start-up instruction or a stop instruction;
and controlling the running states of the floor radiation system and the fresh air system according to the control instruction, wherein the fresh air system is used for dehumidifying the indoor air under the condition that the floor radiation system is in a starting-up stage or a stopping stage so as to control the floor temperature value to be higher than the upper limit value of the dew point temperature of the indoor air.
The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the anti-condensation method of the floor radiation system provided by any one of the method embodiments described above.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
From the above description of embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus a general purpose hardware platform, or may be implemented by hardware. Based on such understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the related art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the method described in the respective embodiments or some parts of the embodiments.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A method of preventing condensation in a floor radiant system, the method comprising:
acquiring a control instruction, wherein the control instruction is a start-up instruction or a stop instruction;
and controlling the running states of the floor radiation system and the fresh air system according to the control instruction, wherein the fresh air system is used for dehumidifying indoor air under the condition that the floor radiation system is in a starting-up stage or a stopping stage so as to control the floor temperature value to be higher than the upper limit value of the dew point temperature of the indoor air.
2. The method of claim 1, wherein controlling the operating states of the floor radiant system and the fresh air system according to the control command comprises:
controlling the fresh air system to operate in a dehumidification mode under the condition that the control instruction is the starting instruction, wherein the dehumidification mode is used for dehumidifying indoor air;
under the condition that the indoor air humidity reaches a preset humidity range, controlling the fresh air system to exit the dehumidification mode and controlling the floor radiation system to operate in a first cooling mode, wherein the first cooling mode is that the floor radiation system provides first-temperature cold water to radiate and cool a floor;
and under the condition that the operation time of the floor radiation system in the first cooling mode reaches a first preset time, controlling the floor radiation system to operate in a second cooling mode, wherein the second cooling mode is that the floor radiation system provides second temperature cold water for radiation cooling of the floor, and the temperature of the second temperature cold water is lower than that of the first temperature cold water.
3. The method according to claim 2, wherein the method further comprises:
and controlling the fresh air system to operate in a refrigeration mode under the condition that the operation time of the floor radiation system in the second cooling mode reaches a second preset time, wherein the refrigeration mode is used for supplementing the indoor air.
4. The method of claim 3, wherein said controlling the fresh air system to operate in a cooling mode comprises:
acquiring outdoor environment temperature and indoor set temperature;
when the outdoor environment temperature is higher than the indoor set temperature, a fresh air valve in the fresh air system is controlled to be closed;
and controlling a fresh air valve in the fresh air system to be opened under the condition that the outdoor environment temperature is less than or equal to the indoor set temperature.
5. The method of claim 3, wherein said controlling the fresh air system to operate in a cooling mode comprises:
acquiring the concentration of indoor carbon dioxide;
controlling a fresh air valve in the fresh air system to be opened under the condition that the indoor carbon dioxide concentration is larger than a preset concentration threshold value;
and under the condition that the indoor carbon dioxide concentration is smaller than or equal to a preset concentration threshold value, controlling a fresh air valve in the fresh air system to be closed.
6. The method of claim 1, wherein controlling the operating states of the floor radiant system and the fresh air system according to the control command comprises:
when the control instruction is the shutdown instruction, controlling the floor radiation system to operate in a third cooling mode and controlling the fresh air system to operate in a dehumidification mode, wherein the third cooling mode is that the floor radiation system supplies third-temperature cold water to cool indoor air;
and under the condition that the floor temperature value is higher than the upper limit value of the dew point temperature, controlling the floor radiation system and the fresh air system to stop running, wherein the floor temperature value is acquired based on a floor temperature sensor in the floor radiation system, and the range of the dew point temperature is determined based on an indoor air temperature acquired based on an air temperature sensor in the floor radiation system and an indoor air humidity acquired based on an air humidity sensor.
7. The method of claim 2 or 6, wherein the controlling the fresh air system to operate in a dehumidification mode comprises:
acquiring the floor temperature value and the value range of the dew point temperature;
and controlling the opening degree of a fresh air valve in the fresh air system and the running frequency of a fresh air unit in the fresh air system according to the difference value of the floor temperature value and the upper limit value of the dew point temperature.
8. A condensation prevention system for a floor radiation system, comprising: the intelligent controller is respectively connected with the upper computer, the floor radiation system and the fresh air system;
the upper computer is used for receiving triggering operation of a user and generating a control instruction according to the triggering operation;
the intelligent controller is used for receiving a control instruction sent by the upper computer; and controlling the running states of the floor radiation system and the fresh air system according to the control instruction, wherein the fresh air system is used for dehumidifying indoor air under the condition that the floor radiation system is in a starting-up stage or a stopping stage so as to control the floor temperature value to be higher than the upper limit value of the dew point temperature of the indoor air.
9. The electronic equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;
a memory for storing a computer program;
a processor for implementing the steps of the anti-condensation method of the floor radiation system according to any one of claims 1 to 7 when executing a program stored on a memory.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, carries out the steps of the anti-dewing method of a floor radiation system according to any one of claims 1-7.
CN202311170054.8A 2023-09-11 2023-09-11 Anti-condensation method and system of floor radiation system and electronic equipment Pending CN117128613A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118149426A (en) * 2024-05-13 2024-06-07 深圳市森威尔科技开发股份有限公司 Anti-condensation method, system, equipment and storage medium based on radiation temperature regulating system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118149426A (en) * 2024-05-13 2024-06-07 深圳市森威尔科技开发股份有限公司 Anti-condensation method, system, equipment and storage medium based on radiation temperature regulating system
CN118149426B (en) * 2024-05-13 2024-07-05 深圳市森威尔科技开发股份有限公司 Anti-condensation method, system, equipment and storage medium based on radiation temperature regulating system

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