CN115200131B - Subway station ventilation air conditioning air system control method and device - Google Patents

Subway station ventilation air conditioning air system control method and device Download PDF

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Publication number
CN115200131B
CN115200131B CN202210874780.7A CN202210874780A CN115200131B CN 115200131 B CN115200131 B CN 115200131B CN 202210874780 A CN202210874780 A CN 202210874780A CN 115200131 B CN115200131 B CN 115200131B
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operation mode
value
temperature
carbon dioxide
fresh air
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CN115200131A (en
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蔡小兵
杨天
孙应松
王鹏宇
杨欣
谢永咸
魏昆昆
杨光勇
李启应
吴坤
刘鹏
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Guizhou Huitong Huacheng Co ltd
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Guizhou Huitong Huacheng Co ltd
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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
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • 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
    • F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • 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
    • F24F2110/20—Humidity
    • 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

Abstract

The invention discloses a method and a device for controlling a ventilation air-conditioning air system of a subway station, which relate to the technical field of air-conditioning air system control, and the method comprises the following steps: automatically switching the current operation mode according to the season, fresh air enthalpy, return air enthalpy, an A-end environment temperature, a B-end environment temperature, an A-end carbon dioxide concentration and a B-end carbon dioxide concentration to which the current operation mode belongs; according to the switched current operation mode, determining the state of the controlled equipment in the switched current operation mode by utilizing an equipment state table; the device state table comprises the states of the controlled devices in each operation mode; the state is start or stop; according to the state of the controlled equipment in the switched current operation mode, a control signal is sent to the controlled equipment; the control signals comprise a start signal and a stop signal; the starting signal is used for starting the controlled equipment; the stop signal is used to stop the controlled device. The invention can realize the automatic switching of the operation mode and start or stop corresponding controlled equipment by one key.

Description

Subway station ventilation air conditioning air system control method and device
Technical Field
The invention relates to the technical field of air conditioning air system control, in particular to a method and a device for controlling a subway station ventilation air conditioning air system.
Background
In a subway air conditioning system (subway station ventilation air conditioning system), the same number of small fresh air fans, blowers, back/exhaust fans, small fresh air valves, surface air cooler water valves, supply air interlocking air valves, back/exhaust interlocking air valves, exhaust valves and return air valves (hereinafter simply referred to as controlled devices) are generally provided at both ends of a subway station (generally referred to as an a end and a B end). The controlled equipment comprises a small fresh air blower, a back/exhaust fan, a small fresh air valve, a water valve of a surface air cooler, a blowing interlocking air valve, a back/exhaust interlocking air valve, an exhaust air valve and a back air valve, and most subway stations are respectively provided with one set of equipment at two ends (generally called an end A and an end B) of a station room. In order to ensure the carbon dioxide concentration and the temperature and humidity requirements of the environmental area of the station hall, the starting or stopping of the controlled equipment needs to be controlled according to different operation modes. Therefore, the control scheme of the subway station ventilation air-conditioning air system has the problem of multi-equipment coupling linkage, most of the existing control schemes collect start-stop signal points of all equipment on control software, the control software only realizes remote start-stop and remote stop of the equipment, when the mode is required to be switched or the equipment is required to be started and stopped, the stop buttons can be manually pressed one by one, the start buttons are pressed one by one, the steps are complicated and error is easy, the convenient operation of one-key start or stop of the related equipment cannot be realized, and the automatic switching of the operation mode according to the change of the station hall station temperature and humidity cannot be realized.
In summary, how to realize automatic switching of the operation modes and start or stop corresponding controlled devices by one key is a problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a method and a device for controlling a ventilation air-conditioning air system of a subway station, which can realize automatic switching of operation modes and start or stop corresponding controlled equipment by one key.
In order to achieve the above object, the present invention provides the following solutions:
a method for controlling a ventilation air conditioning air system of a subway station, the method comprising:
acquiring a current operation mode and seasons to which the current operation mode belongs;
acquiring fresh air temperature, fresh air humidity, return air temperature, return air humidity, an A end environment temperature, a B end environment temperature, an A end carbon dioxide concentration and a B end carbon dioxide concentration; the environment temperature A is the environment temperature at one end of a subway station room; the B-end environment temperature is the environment temperature of the other end of the subway station room; the carbon dioxide concentration at the end A is the carbon dioxide concentration at one end of a subway station room; the carbon dioxide concentration at the end B is the carbon dioxide concentration at the other end of the subway station room;
determining a fresh air enthalpy value according to the fresh air temperature and the fresh air humidity;
Determining a return air enthalpy value according to the return air temperature and the return air humidity;
automatically switching the current operation mode according to the season to which the current operation mode belongs, the fresh air enthalpy value, the return air enthalpy value, the A-end environment temperature, the B-end environment temperature, the A-end carbon dioxide concentration and the B-end carbon dioxide concentration to obtain a switched current operation mode;
according to the switched current operation mode, determining the state of the controlled equipment in the switched current operation mode by utilizing an equipment state table; the device state table comprises the states of the controlled devices in each operation mode; the state is start or stop; the controlled equipment comprises a plurality of small fresh air fans, air blowers, a back/exhaust fan, a small fresh air valve, a surface air cooler water valve, an air supply interlocking air valve, a back/exhaust interlocking air valve, an exhaust valve and a back air valve;
according to the state of the controlled equipment in the switched current operation mode, a control signal is sent to the controlled equipment; the control signals comprise a start signal and a stop signal; the starting signal is used for starting the controlled equipment to enable the controlled equipment to work; the stop signal is used for stopping the controlled equipment to stop the controlled equipment.
Optionally, the acquiring the current operation mode and the season to which the current operation mode belongs further includes:
acquiring a mode number input by a user;
according to the mode number input by the user, a current operation mode and seasons and working conditions to which the current operation mode belongs are obtained by utilizing a seasonal working condition mode table; the season working condition mode table comprises operation modes and mode numbers under various seasons and working conditions;
according to the mode number input by the user, the state of the controlled equipment in the current running mode is obtained by utilizing the equipment state table;
according to the state of the controlled equipment in the current operation mode, a control signal is sent to the controlled equipment; the control signals include a start signal and a stop signal.
Optionally, the automatic switching is performed on the current operation mode according to the season to which the current operation mode belongs, the fresh air enthalpy value, the return air enthalpy value, the a-end environment temperature, the B-end environment temperature, the a-end carbon dioxide concentration and the B-end carbon dioxide concentration, so as to obtain a switched current operation mode, which specifically includes:
when the season to which the current operation mode belongs is summer, automatically switching the current operation mode according to a first mode switching temperature preset value, a duration time set value, a second mode switching temperature preset value, a carbon dioxide concentration preset protection value, the fresh air enthalpy value, the return air enthalpy value, the A end environment temperature, the B end environment temperature, the A end carbon dioxide concentration and the B end carbon dioxide concentration to obtain a switched current operation mode;
When the season to which the current operation mode belongs is a transitional season, automatically switching the current operation mode according to a third mode switching temperature preset value, the duration time set value, a fourth mode switching temperature preset value, the carbon dioxide concentration preset protection value, the fresh air enthalpy value, the return air enthalpy value, the A-end environment temperature, the B-end environment temperature, the A-end carbon dioxide concentration and the B-end carbon dioxide concentration to obtain a switched current operation mode;
when the season to which the current operation mode belongs is winter, automatically switching the current operation mode according to a fifth mode switching temperature preset value, the duration time set value, a sixth mode switching temperature preset value, the carbon dioxide concentration preset protection value, the fresh air enthalpy value, the return air enthalpy value, the A end environment temperature, the B end environment temperature, the A end carbon dioxide concentration and the B end carbon dioxide concentration to obtain a switched current operation mode.
Optionally, the determining the fresh air enthalpy value according to the fresh air temperature and the fresh air humidity specifically includes:
determining a first moisture content according to the fresh air humidity;
And determining a fresh air enthalpy value according to the fresh air temperature and the first moisture content.
Optionally, the determining the return air enthalpy value according to the return air temperature and the return air humidity specifically includes:
determining a second moisture content from the return air humidity;
and determining a return air enthalpy value according to the return air temperature and the second moisture content.
The invention also provides the following scheme:
a subway station ventilation air conditioning wind system control device, the device comprising:
the fresh air temperature sensor is used for collecting fresh air temperature;
the fresh air humidity sensor is used for collecting fresh air humidity;
the return air temperature sensor is used for collecting return air temperature;
the return air humidity sensor is used for collecting return air humidity;
the environment A temperature sensor is used for acquiring environment A temperature;
the B-end environment temperature sensor is used for acquiring the B-end environment temperature;
the carbon dioxide concentration sensor at the end A is used for collecting the carbon dioxide concentration at the end A;
the carbon dioxide concentration sensor at the end B is used for collecting the carbon dioxide concentration at the end B;
the air treatment module controller is respectively connected with the fresh air temperature sensor, the fresh air humidity sensor, the return air temperature sensor, the return air humidity sensor, the end A environment temperature sensor, the end B environment temperature sensor, the end A carbon dioxide concentration sensor and the end B carbon dioxide concentration sensor and controlled equipment, and is used for automatically switching the current operation mode by utilizing the subway station ventilation air conditioning system control method and sending a control signal to the controlled equipment according to the switched current operation mode.
Optionally, the fresh air temperature sensor and the fresh air humidity sensor are arranged at a fresh air inlet of the fresh air pipeline;
the return air temperature sensor and the return air humidity sensor are arranged at a return air inlet of the return air pipeline;
the A-end environment temperature sensor and the A-end carbon dioxide concentration sensor are arranged on one end ceiling of a subway station room;
the B-end environmental temperature sensor and the B-end carbon dioxide concentration sensor are arranged on the ceiling at the other end of the subway station room.
Optionally, a mode setting interface is arranged on the air treatment module controller;
the mode setting interface is used for acquiring a mode number input by a user.
Optionally, the number of the an end environment temperature sensor, the B end environment temperature sensor, the a end carbon dioxide concentration sensor and the B end carbon dioxide concentration sensor is 4.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
according to the method and the device for controlling the ventilation air-conditioning air system of the subway station, the current operation mode is automatically switched according to the season, fresh air enthalpy, return air enthalpy, end A environment temperature, end B environment temperature, end A carbon dioxide concentration and end B carbon dioxide concentration to which the current operation mode belongs, so that the automatic switching of the operation mode is realized, the state of controlled equipment in the switched current operation mode is determined by using an equipment state table storing the states of the controlled equipment in each operation mode according to the switched current operation mode, and a control signal (comprising a start signal and a stop signal) is sent to the controlled equipment according to the state of the controlled equipment in the switched current operation mode, so that the corresponding controlled equipment is started or stopped by one key.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an embodiment of a method for controlling a ventilation air conditioning system of a subway station according to the present invention;
FIG. 2 is a schematic diagram of the connection of controlled equipment in a ventilation air conditioning system of a subway station;
fig. 3 is a structural diagram of an embodiment of a ventilation air-conditioning air system control device for a subway station according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a method and a device for controlling a ventilation air-conditioning air system of a subway station, which can realize automatic switching of operation modes and start or stop corresponding controlled equipment by one key.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Fig. 1 is a flowchart of an embodiment of a method for controlling a ventilation air conditioning system of a subway station according to the present invention. Referring to fig. 1, the subway station ventilation air conditioning air system control method includes:
step 101: the current operation mode and the season to which the current operation mode belongs are acquired.
This step 101 is preceded by:
and acquiring the mode number input by the user.
According to the mode number input by the user, a current operation mode and seasons and working conditions to which the current operation mode belongs are obtained by utilizing a seasonal working condition mode table; the seasonal operating mode list comprises operating modes and mode numbers under various seasons and operating conditions.
And obtaining the state of the controlled device in the current running mode by using the device state table according to the mode number input by the user.
According to the state of the controlled equipment in the current operation mode, a control signal is sent to the controlled equipment; the control signals include a start signal and a stop signal.
The operation modes and mode numbers of the seasons and the working conditions are defined in the season working condition mode table. The season mode table is shown in table 1:
table 1 seasonal operating mode table
Figure BDA0003761826190000061
Step 102: acquiring fresh air temperature, fresh air humidity, return air temperature, return air humidity, an A end environment temperature, a B end environment temperature, an A end carbon dioxide concentration and a B end carbon dioxide concentration; the environment temperature A is the environment temperature at one end of a subway station room; the B-end environment temperature is the environment temperature of the other end of the subway station room; the carbon dioxide concentration of the end A is the carbon dioxide concentration of one end of a subway station room; the carbon dioxide concentration at the end B is the carbon dioxide concentration at the other end of the subway station room.
Step 103: and determining the fresh air enthalpy value according to the fresh air temperature and the fresh air humidity.
The step 103 specifically includes:
and determining the first moisture content according to the fresh air humidity.
And determining the fresh air enthalpy value according to the fresh air temperature and the first moisture content.
Step 104: and determining the return air enthalpy value according to the return air temperature and the return air humidity.
The step 104 specifically includes:
the second moisture content is determined based on the return air humidity.
And determining the return air enthalpy value according to the return air temperature and the second moisture content.
In the step 103 and the step 104, the calculation formulas of the fresh air enthalpy value and the return air enthalpy value are identical, and only the input parameters are different, and the related calculation formulas are as follows:
The temperature and humidity of the air are known to calculate the moisture content, i.e. the temperature and humidity of the fresh air are known to calculate the first moisture content, and the temperature and humidity of the return air are known to calculate the second moisture content.
The known temperature and moisture content can calculate the enthalpy value, i.e. the known fresh air temperature and the first moisture content can calculate the fresh air enthalpy value, and the known return air temperature and the second moisture content can calculate the return air enthalpy value.
Enthalpy value is calculated from air temperature and moisture content:
h＝1.01t+0.001d(2500+1.84t)
wherein: h represents the enthalpy value, t represents the air temperature, and d represents the moisture content.
The moisture content was calculated from the air humidity:
d＝622*(φ*Pb/(B-φ*Pb))
wherein: d represents the moisture content, phi represents the air humidity, pb represents the saturated water vapor partial pressure, and B represents the normal atmospheric pressure 101325Pa.
Saturated water vapor partial pressure was calculated by the Hyland-Wexler equation:
ln(Pb)＝C 1 /T+C 2 +C 3 *t+C 4 *t 2 +C 5 *t 3 +C 6 *ln(273.15+t)
wherein: c (C) 1 ＝-0.58002206*10 4 ，C 2 ＝0.13914993*10，C 3 ＝-0.48640239*10 -1 ，C 4 ＝0.41764768*10 -4 ，C 5 ＝-0.14452093*10 -7 ，C 6 ＝0.65459673*10。
Step 105: and automatically switching the current operation mode according to the season, fresh air enthalpy, return air enthalpy, an A-end environment temperature, a B-end environment temperature, an A-end carbon dioxide concentration and a B-end carbon dioxide concentration to which the current operation mode belongs, so as to obtain the switched current operation mode.
The step 105 specifically includes:
when the season to which the current operation mode belongs is summer, automatically switching the current operation mode according to the first mode switching temperature preset value, the duration time set value, the second mode switching temperature preset value, the carbon dioxide concentration preset protection value, the fresh air enthalpy value, the return air enthalpy value, the A end environment temperature, the B end environment temperature, the A end carbon dioxide concentration and the B end carbon dioxide concentration to obtain a switched current operation mode.
When the season to which the current operation mode belongs is a transitional season, automatically switching the current operation mode according to a third mode switching temperature preset value, a duration time set value, a fourth mode switching temperature preset value, a carbon dioxide concentration preset protection value, a fresh air enthalpy value, a return air enthalpy value, an A end environment temperature, a B end environment temperature, an A end carbon dioxide concentration and a B end carbon dioxide concentration to obtain a switched current operation mode.
When the season to which the current operation mode belongs is winter, automatically switching the current operation mode according to a fifth mode switching temperature preset value, a duration time set value, a sixth mode switching temperature preset value, a carbon dioxide concentration preset protection value, a fresh air enthalpy value, a return air enthalpy value, an A end environment temperature, a B end environment temperature, an A end carbon dioxide concentration and a B end carbon dioxide concentration to obtain a switched current operation mode.
When the season to which the current operation mode belongs is summer, automatically switching the current operation mode according to a first mode switching temperature preset value, a duration time set value, a second mode switching temperature preset value, a carbon dioxide concentration preset protection value, a fresh air enthalpy value, a return air enthalpy value, an A end environment temperature, a B end environment temperature, an A end carbon dioxide concentration and a B end carbon dioxide concentration, and obtaining a switched current operation mode, wherein the method specifically comprises the following steps of:
And if the fresh air enthalpy value is greater than or equal to the return air enthalpy value, and the average value of the A-end environment temperature is greater than the mode switching temperature preset value 1 (namely the first mode switching temperature preset value, the default 29 ℃) and the duration is greater than the duration set value (default 1 minute), automatically switching the current operation mode into the operation mode 1 (the operation mode with the mode number of 1).
And if the fresh air enthalpy value is smaller than or equal to the return air enthalpy value, the average value of the A-end environment temperature is larger than the mode switching temperature preset value 1 (default 29 ℃), the duration is larger than the duration set value (default 1 minute), and the current operation mode is automatically switched to the operation mode 2 (the operation mode with the mode number of 2).
If the fresh air enthalpy value is less than or equal to the return air enthalpy value, and the average value of the A-end environment temperature is greater than the preset value 2 of the mode switching temperature (namely the preset value of the second mode switching temperature, the default temperature is 26 ℃) and less than the preset value 1 of the mode switching temperature (the default temperature is 29 ℃), and the average value of the A-end environment temperature is greater than or equal to the average value of the B-end environment temperature, and the duration is greater than the set value of the duration (the default temperature is 1 minute), the current operation mode is automatically switched to the operation mode 3 (the operation mode with the mode number of 3).
And if the fresh air enthalpy value is smaller than or equal to the return air enthalpy value, the average value of the B-end environment temperature is larger than the preset value 2 of the mode switching temperature (default 26 ℃) and smaller than the preset value 1 of the mode switching temperature (default 29 ℃), the average value of the B-end environment temperature is larger than or equal to the average value of the A-end environment temperature, and the duration is larger than the duration set value (default 1 minute), automatically switching the current running mode into the running mode 4 (the running mode with the mode number of 4).
And if the carbon dioxide concentration of the end A or the carbon dioxide concentration of the end B is larger than the carbon dioxide concentration preset protection value (default 1500 ppm) and the duration is larger than the duration set value (default 1 minute), automatically switching the current operation mode into the operation mode 2.
In other cases, the current mode state is maintained.
When the season to which the current operation mode belongs is a transition season (seasons other than summer and winter), automatically switching the current operation mode according to a third mode switching temperature preset value, a duration set value, a fourth mode switching temperature preset value, a carbon dioxide concentration preset protection value, a fresh air enthalpy value, a return air enthalpy value, an A end environment temperature, a B end environment temperature, an A end carbon dioxide concentration and a B end carbon dioxide concentration, and obtaining a switched current operation mode, wherein the method specifically comprises the following steps of:
if the fresh air enthalpy value is greater than or equal to the return air enthalpy value, and the average value of the A-side ambient temperature is greater than the mode switching temperature preset value 3 (i.e., the third mode switching temperature preset value, default 30 ℃) and the duration is greater than the duration set value (default 1 minute), the current operation mode is automatically switched to the operation mode 16 (the operation mode with the mode number of 16).
And if the fresh air enthalpy value is smaller than or equal to the return air enthalpy value, the average value of the A-end environment temperature is larger than the mode switching temperature preset value 3 (default 30 ℃) and the duration is larger than the duration set value (default 1 minute), automatically switching the current operation mode into the operation mode 17 (the operation mode with the mode number of 17).
If the fresh air enthalpy value is less than or equal to the return air enthalpy value, and the a-end environment temperature average value is greater than the mode switching temperature preset value 4 (i.e., the fourth mode switching temperature preset value, default 26 ℃) and less than the mode switching temperature preset value 3 (default 30 ℃), and the a-end environment temperature average value is greater than or equal to the B-end environment temperature average value, and the duration is greater than the duration set value (default 1 minute), automatically switching the current operation mode to the operation mode 18 (the operation mode with the mode number of 18).
And if the fresh air enthalpy value is smaller than or equal to the return air enthalpy value, the average value of the B-end environment temperature is larger than the preset value 4 of the mode switching temperature (default 26 ℃) and smaller than the preset value 3 of the mode switching temperature (default 30 ℃), the average value of the B-end environment temperature is larger than or equal to the average value of the A-end environment temperature, and the duration is larger than the duration set value (default 1 minute), automatically switching the current running mode into the running mode 19 (the running mode with the mode number of 19).
If the carbon dioxide concentration at the end A or the carbon dioxide concentration at the end B is greater than the preset protection value (1500 ppm) of the carbon dioxide concentration and the duration is greater than the duration set value (default 1 minute), the current operation mode is automatically switched to the operation mode 19.
In other cases, the current mode state is maintained.
When the season to which the current operation mode belongs is winter, automatically switching the current operation mode according to a fifth mode switching temperature preset value, a duration time set value, a sixth mode switching temperature preset value, a carbon dioxide concentration preset protection value, a fresh air enthalpy value, a return air enthalpy value, an A end environment temperature, a B end environment temperature, an A end carbon dioxide concentration and a B end carbon dioxide concentration, and obtaining a switched current operation mode, wherein the method specifically comprises the following steps of:
if the fresh air enthalpy value is greater than or equal to the return air enthalpy value, and the average value of the a-end environment temperature is greater than the preset mode switching temperature value 5 (the preset fifth mode switching temperature value, the default 20 ℃) or the average value of the B-end environment temperature is greater than the preset mode switching temperature value 5 (i.e. the preset mode switching temperature value 5, the default 20 ℃) and the duration is greater than the duration set value (the default 1 minute), the current operation mode is automatically switched to the operation mode 31 (the operation mode with the mode number of 31).
The current operation mode is automatically switched to the operation mode 32 (operation mode of the mode number 32) with the a-side environment temperature average value being smaller than the mode switching temperature preset value 5 (default 20 ℃) and the B-side environment temperature average value being smaller than the mode switching temperature preset value 5 (default 20 ℃) and the duration being greater than the duration setting value (default 1 minute).
If the carbon dioxide concentration at the end a or the carbon dioxide concentration at the end B is greater than the carbon dioxide concentration preset protection value (1500 ppm) and the duration is greater than the duration set value (default 1 minute), the current operation mode is automatically switched to the operation mode 33 (the operation mode with the mode number of 33).
Step 106: according to the switched current operation mode, determining the state of the controlled equipment in the switched current operation mode by utilizing an equipment state table; the device state table comprises the states of the controlled devices in each operation mode; the state is start or stop; the controlled equipment comprises a plurality of small fresh air fans, air blowers, a back/exhaust fan, a small fresh air valve, a surface air cooler water valve, an air supply interlocking air valve, a back/exhaust interlocking air valve, an exhaust valve and a back air valve.
The device state table defines whether the controlled device is in a running state or a stopping state in each running mode. The device status table is shown in table 2:
table 2 device status table
Figure BDA0003761826190000111
Step 107: according to the state of the controlled equipment in the switched current operation mode, a control signal is sent to the controlled equipment; the control signals comprise a start signal and a stop signal; the starting signal is used for starting the controlled equipment to enable the controlled equipment to work; the stop signal is used for stopping the controlled equipment and stopping the controlled equipment.
The execution main body of the subway station ventilation air-conditioning air system control method is an industrial control computer. When controlled equipment is connected and forms a subway air-conditioning wind system in the mode of fig. 2, the invention provides a method for controlling the starting and stopping of the controlled equipment.
The control method described in the invention is mainly aimed at a ventilation air-conditioning air system of a subway station, and controlled equipment comprises a small fresh air fan, a blower, a back/exhaust fan, a small fresh air valve, a surface air cooler water valve, a supply air interlocking air valve, a back/exhaust interlocking air valve, an exhaust valve and a return air valve.
Fig. 3 is a structural diagram of an embodiment of a ventilation air-conditioning air system control device for a subway station according to the present invention. Referring to fig. 3, the subway station ventilation air conditioning wind system control device includes:
fresh air temperature sensor 301 is used for gathering fresh air temperature.
Fresh air humidity sensor 302 for collecting fresh air humidity.
A return air temperature sensor 303 for collecting the return air temperature.
The return air humidity sensor 304 is used for collecting the return air humidity.
An a-ring environment temperature sensor 305 for acquiring a-ring environment temperature.
And a B-ring environment temperature sensor 306 for acquiring a B-ring environment temperature.
The carbon dioxide concentration sensor 307 at the a end is used for collecting the carbon dioxide concentration at the a end.
And a B-side carbon dioxide concentration sensor 308 for collecting the B-side carbon dioxide concentration.
The air processing module controller 309 is respectively connected with the fresh air temperature sensor 301, the fresh air humidity sensor 302, the return air temperature sensor 303, the return air humidity sensor 304, the end environment temperature sensor 305 at the a end, the end environment temperature sensor 306 at the B end, the end carbon dioxide concentration sensor 307 at the a end, the end carbon dioxide concentration sensor 308 at the B end and the controlled equipment, and is used for automatically switching the current operation mode by utilizing the subway station ventilation air conditioning air system control method of the subway station ventilation air conditioning air system control method embodiment of the invention and sending a control signal to the controlled equipment according to the switched current operation mode.
Wherein the environmental temperature A is the environmental temperature of one end of a subway station room (the environmental temperature of one end of the subway station room); the B-end environment temperature is the environment temperature of the other end of the subway station building (the environment temperature of the other end of the subway station building); the carbon dioxide concentration of the end A is the carbon dioxide concentration of one end of a subway station room (the carbon dioxide concentration of one end of the subway station room); and the carbon dioxide concentration at the end B is the carbon dioxide concentration at the other end of the subway station room (the carbon dioxide concentration at the other end of the subway station room).
The air treatment module controller 309 incorporates a start-stop algorithm, an auto-control algorithm, a seasonal operating mode table, and an equipment status table for controlling the start and stop of the controlled equipment. The air treatment module controller 309 collects the operation state of the controlled device through the weak electric signal and implements start and stop control of the controlled device. The air handling module controller 309 is a controller externally connected to the subway air conditioning system.
The controlled devices are each provided with a status sampling point for feeding back whether the device's own status is running, malfunctioning or stopped.
The controlled devices are each provided with a control command receiving point for receiving a start or stop command (signal) given by an external controller (air treatment module controller 309).
Further, the number of the a-side environmental temperature sensor 305, the B-side environmental temperature sensor 306, the a-side carbon dioxide concentration sensor 307, and the B-side carbon dioxide concentration sensor 308 is 4.
The fresh air temperature sensor 301 and the fresh air humidity sensor 302 are disposed at a fresh air inlet of the fresh air duct. The return air temperature sensor 303 and the return air humidity sensor 304 are disposed at a return air inlet of the return air duct. The a-end environmental temperature sensor 305 and the a-end carbon dioxide concentration sensor 307 are provided to one end ceiling of the subway station room. The B-terminal environmental temperature sensor 306 and the B-terminal carbon dioxide concentration sensor 308 are disposed on the ceiling of the other end of the subway station room. 4 sets of regional temperature sensors (an end environmental temperature sensor 305) and regional carbon dioxide concentration sensors (an end carbon dioxide concentration sensor 307) are uniformly arranged on an end ceiling of a station hall platform A (an end ceiling of a subway station room), and 4 sets of regional temperature sensors (a end environmental temperature sensor 306) and regional carbon dioxide concentration sensors (a end carbon dioxide concentration sensor 308) are uniformly arranged on an end ceiling of a station hall platform B (an end ceiling of the subway station room).
The air treatment module controller 309 collects values of a fresh air temperature sensor 301, a fresh air humidity sensor 302, a return air temperature sensor 303, a return air humidity sensor 304, a hall station platform environment area temperature sensor (an end environment temperature sensor 305 and a B end environment temperature sensor 306) and a hall station platform environment area carbon dioxide concentration sensor (an end carbon dioxide concentration sensor 307 and a B end carbon dioxide concentration sensor 308) through weak electric signals, and is used for realizing automatic switching of operation modes.
In addition, a hall station environmental area humidity sensor may be further set, and the air processing module controller 309 collects values of the fresh air temperature sensor 301, the fresh air humidity sensor 302, the return air temperature sensor 303, the return air humidity sensor 304, the hall station environmental area temperature sensor, the hall station environmental area humidity sensor, and the hall station environmental area carbon dioxide concentration sensor through weak electric signals, for implementing automatic switching of the operation mode.
Specifically, the air treatment module controller 309 is provided with a mode setting interface. The mode setting interface is used for acquiring a mode number input by a user.
The following describes in detail a specific method for realizing automatic switching of operation modes and starting or stopping corresponding controlled equipment by one key by using the subway station ventilation air-conditioning air system control device:
Step 1: the status sampling points and control command points of the controlled devices are integrated into the air treatment module controller 309 through weak electrical signals. The sampled values of the fresh air temperature sensor 301, the fresh air humidity sensor 302, the return air temperature sensor 303, the return air humidity sensor 304, the hall platform environment area temperature sensor and the hall platform environment area carbon dioxide concentration sensor are integrated into the air treatment module controller 309 through weak electric signals.
Step 2: a seasonal operating mode profile as shown in table 1 is set in the air handler module controller 309. The season and conditions to which the current mode of operation belongs are displayed in the air handling module controller 309.
Step 3: the equipment status table shown in table 2 is built into the air treatment module controller 309.
Step 4: the air handling module controller 309 provides a mode setting interface and a start-up and shut-down interface for human-machine interaction.
Step 5: when the operator completes the "mode number" setting and presses the power on interface, the air handler module controller 309 enters the power on mode.
Step 6: the air treatment module controller 309 queries the device status table to obtain the target operating status of each controlled device in the preset mode, and then starts the devices in the sequence of opening the air valve and then opening the fan.
Step 7: after all equipment is turned on, the air treatment module controller 309 enters a conditioning mode. Fresh air enthalpy is calculated according to sampling values of a fresh air temperature sensor 301 and a fresh air humidity sensor 302, and return air enthalpy is calculated according to sampling values of a return air temperature sensor 303 and a return air humidity sensor 304.
Step 8: when in summer, the air treatment module controller 309, in the conditioning mode, automatically switches modes as follows:
(1) If the fresh air enthalpy is greater than or equal to the return air enthalpy, and the a-side ambient temperature sensor 305 samples an average value greater than the mode switch temperature preset value 1 (i.e., the first mode switch temperature preset value, 29 ℃ by default), and a duration greater than the duration set point (1 minute by default). The air treatment module controller 309 regulates the state of each controlled device, ensuring that all controlled devices are in the state of run mode 1.
(2) If the fresh air enthalpy is less than or equal to the return air enthalpy, and the a-side ambient temperature sensor 305 samples an average value greater than the mode switch temperature preset value 1 (default 29 ℃) and a duration greater than the duration set point (default 1 minute). The air treatment module controller 309 regulates the state of each controlled device, ensuring that all controlled devices are in the state of run mode 2.
(3) If the fresh air enthalpy is less than or equal to the return air enthalpy, and the average value sampled by the a-end environment temperature sensor 305 is greater than the mode switch temperature preset value 2 (i.e., the second mode switch temperature preset value, default 26 ℃) and less than the mode switch temperature preset value 1 (default 29 ℃), and the average value sampled by the a-end environment temperature sensor 305 is greater than or equal to the average value sampled by the B-end environment temperature sensor 306, and the duration is greater than the duration set point (default 1 minute). The air treatment module controller 309 regulates the status of each controlled device, ensuring that all controlled devices are in the run mode 3 state.
(4) If the fresh air enthalpy is less than or equal to the return air enthalpy, and the B-side ambient temperature sensor 306 samples an average greater than the mode switch temperature preset 2 (default 26 ℃) and less than the mode switch temperature preset 1 (default 29 ℃), and the B-side ambient temperature sensor 306 samples an average greater than or equal to the a-side ambient temperature sensor 305 samples an average, and the duration is greater than the duration set point (default 1 minute). The air treatment module controller 309 regulates the status of each controlled device, ensuring that all controlled devices are in the run mode 4 state.
(5) If the carbon dioxide concentration sensor 307 at the a-side or the carbon dioxide concentration sensor 308 at the B-side has a sampling value greater than the preset protection value of carbon dioxide concentration (default 1500 ppm), and the duration is greater than the duration setting value (default 1 minute). The air treatment module controller 309 regulates the status of each controlled device, ensures that all controlled devices are in the run mode 2 state, and each fan runs at a preset frequency (default 50 Hz).
(6) In other cases, the current mode state is maintained.
Step 9: when in the transitional season, the air treatment module controller 309 automatically switches modes in the conditioning mode as follows:
(1) If the fresh air enthalpy is greater than or equal to the return air enthalpy, and the a-side ambient temperature sensor 305 samples an average value greater than the mode switch temperature preset value 3 (i.e., the third mode switch temperature preset value, 30 ℃ by default), and a duration greater than the duration set point (1 minute by default). The air treatment module controller 309 regulates the status of each controlled device, ensuring that all controlled devices are in the state of the run mode 16.
(2) If the fresh air enthalpy is less than or equal to the return air enthalpy, and the a-side ambient temperature sensor 305 samples an average value greater than the mode switch temperature preset value 3 (30 ℃ default) and a duration greater than the duration set point (1 minute default). The air treatment module controller 309 regulates the status of each controlled device, ensuring that all controlled devices are in the state of the run mode 17.
(3) If the fresh air enthalpy is less than or equal to the return air enthalpy, and the average value sampled by the a-end environment temperature sensor 305 is greater than the mode switch temperature preset value 4 (i.e., the fourth mode switch temperature preset value, default 26 ℃) and less than the mode switch temperature preset value 3 (default 30 ℃), and the average value sampled by the a-end environment temperature sensor 305 is greater than or equal to the average value sampled by the B-end environment temperature sensor 306, and the duration is greater than the duration set point (default 1 minute). The air treatment module controller 309 regulates the status of each controlled device, ensuring that all controlled devices are in the run mode 18 state.
(4) If the fresh air enthalpy is less than or equal to the return air enthalpy, and the B-side ambient temperature sensor 306 samples an average greater than the mode switch temperature preset 4 (default 26 ℃) and less than the mode switch temperature preset 3 (default 30 ℃), and the B-side ambient temperature sensor 306 samples an average greater than or equal to the a-side ambient temperature sensor 305 samples an average, and the duration is greater than the duration set point (default 1 minute). The air treatment module controller 309 regulates the status of each controlled device, ensuring that all controlled devices are in the run mode 19 state.
(5) If the carbon dioxide concentration sensor 307 at the a-side or the carbon dioxide concentration sensor 308 at the B-side has a sampling value greater than the preset protection value (1500 ppm) for the carbon dioxide concentration and the duration is greater than the duration setting value (default 1 minute). The air treatment module controller 309 regulates the status of each controlled device, ensures that all controlled devices are in the run mode 19 status, and each fan operates at a preset frequency (default 50 Hz).
(6) In other cases, the current mode state is maintained.
Step 10: when in winter, the air treatment module controller 309, in the conditioning mode, automatically switches modes as follows:
(1) If the fresh air enthalpy is greater than or equal to the return air enthalpy, and the average sampled by the a-side ambient temperature sensor 305 is greater than the mode switch temperature preset value 5 (fifth mode switch temperature preset value, default 20 ℃) or the average sampled by the B-side ambient temperature sensor 306 is greater than the mode switch temperature 5 (i.e., mode switch temperature preset value 5, default 20 ℃) and the duration is greater than the duration set point (default 1 minute). The air treatment module controller 309 regulates the status of each controlled device, ensuring that all controlled devices are in the run mode 31 state.
(2) The a-side environment temperature sensor 305 samples an average value less than the mode switching temperature preset value 5 (default 20 ℃) and the B-side environment temperature sensor 306 samples an average value less than the mode switching temperature preset value 5 (default 20 ℃) and a duration greater than the duration set point (default 1 minute). The air treatment module controller 309 regulates the status of each controlled device, ensuring that all controlled devices are in the run mode 32 state.
(3) If the carbon dioxide concentration sensor 307 at the a-side or the carbon dioxide concentration sensor 308 at the B-side has a sampling value greater than the preset protection value (1500 ppm) for the carbon dioxide concentration and the duration is greater than the duration setting value (default 1 minute). The air treatment module controller 309 regulates the status of each controlled device, ensures that all controlled devices are in the run mode 33 status, and each fan operates at a preset frequency (default 50 Hz).
Step 11: when the shutdown interface is manually depressed, the air treatment module controller 309 enters a shutdown mode in which the equipment it controls will be conditioned in the run mode 40 state. In the stopping process, the equipment is stopped according to the sequence of stopping the fan and then stopping the air valve.
Compared with the prior art, the invention has the advantages that:
The subway station ventilation air conditioning system adopts an air processing module control algorithm (the subway station ventilation air conditioning system control method) to bind a small fresh air fan, a blower, a return/exhaust fan, a small fresh air valve, a surface air cooler water valve, a supply air interlocking air valve, a return/exhaust interlocking air valve, an exhaust valve and a return air valve, so that the convenient operation of one-key start and stop is realized.
The built-in start-stop algorithm of the air treatment module controller 309 defines the start-stop sequence requirement of each device, and in the start-up or stop process, once the device fails, the device can be automatically stopped according to the reverse sequence.
The season mode table and the equipment state table built in the air treatment module controller 309 define the opening and closing states of the controlled equipment under different seasons and working conditions, and can meet the opening requirements of the equipment under different seasons and working conditions.
The built-in self-control algorithm (the subway station ventilation air conditioning system control method) of the air processing module controller 309 enables the control system to automatically switch the operation mode and start or stop corresponding equipment according to the sampling value of the temperature and humidity sensor and the preset mode switching value.
And (3) the carbon dioxide concentration protection algorithm in the step (5), the step (9), and the step (3) in the step (9) starts protection measures in time when the carbon dioxide concentration in the public environment of the subway station exceeds the standard, so that the environmental safety is ensured.
According to the invention, the small fresh air fan, the blower, the back/exhaust fan, the small fresh air valve, the surface air cooler water valve, the air supply interlocking air valve, the back/exhaust interlocking air valve, the exhaust valve and the return air valve are combined into a whole through the air processing module controller 309, a worker only needs to press a start-up or stop interface on a man-machine interface of the air processing module controller 309, and controlled equipment receives corresponding start or stop commands under the control of an algorithm built in the air processing module controller 309, so that the equipment is automatically started or stopped, and the convenient operation that a plurality of equipment start and stop only need to press one key is realized.
The invention defines the running state of the equipment under each working condition through a pre-built-in seasonal working condition mode table and an equipment state table. The automatic switching of the operation modes can be realized by combining sampling values of a fresh air temperature sensor, a fresh air humidity sensor, a return air temperature sensor, a return air humidity sensor, an environment temperature sensor and an environment humidity sensor.
The equipment state table in the invention can manually adjust the equipment to be in the running or stopping state under each running mode so as to meet different running requirements of each subway station.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.

Claims (8)

1. A method for controlling a ventilation air-conditioning air system of a subway station, the method comprising:
acquiring a current operation mode and seasons to which the current operation mode belongs;
acquiring fresh air temperature, fresh air humidity, return air temperature, return air humidity, an A end environment temperature, a B end environment temperature, an A end carbon dioxide concentration and a B end carbon dioxide concentration; the environment temperature A is the environment temperature at one end of a subway station room; the B-end environment temperature is the environment temperature of the other end of the subway station room; the carbon dioxide concentration at the end A is the carbon dioxide concentration at one end of a subway station room; the carbon dioxide concentration at the end B is the carbon dioxide concentration at the other end of the subway station room;
Determining a fresh air enthalpy value according to the fresh air temperature and the fresh air humidity;
determining a return air enthalpy value according to the return air temperature and the return air humidity;
automatically switching the current operation mode according to the season to which the current operation mode belongs, the fresh air enthalpy value, the return air enthalpy value, the A-end environment temperature, the B-end environment temperature, the A-end carbon dioxide concentration and the B-end carbon dioxide concentration to obtain a switched current operation mode;
according to the switched current operation mode, determining the state of the controlled equipment in the switched current operation mode by utilizing an equipment state table; the device state table comprises the states of the controlled devices in each operation mode; the state is start or stop; the controlled equipment comprises a plurality of small fresh air fans, air blowers, a back/exhaust fan, a small fresh air valve, a surface air cooler water valve, an air supply interlocking air valve, a back/exhaust interlocking air valve, an exhaust valve and a back air valve;
according to the state of the controlled equipment in the switched current operation mode, a control signal is sent to the controlled equipment; the control signals comprise a start signal and a stop signal; the starting signal is used for starting the controlled equipment to enable the controlled equipment to work; the stop signal is used for stopping the controlled equipment and stopping the controlled equipment;
The automatic switching is performed on the current operation mode according to the season to which the current operation mode belongs, the fresh air enthalpy value, the return air enthalpy value, the A-end environment temperature, the B-end environment temperature, the A-end carbon dioxide concentration and the B-end carbon dioxide concentration, so as to obtain a switched current operation mode, and the automatic switching method specifically comprises the following steps:
when the season to which the current operation mode belongs is summer, automatically switching the current operation mode according to a first mode switching temperature preset value, a duration time set value, a second mode switching temperature preset value, a carbon dioxide concentration preset protection value, the fresh air enthalpy value, the return air enthalpy value, the A end environment temperature, the B end environment temperature, the A end carbon dioxide concentration and the B end carbon dioxide concentration to obtain a switched current operation mode, wherein the method specifically comprises the following steps of:
if the fresh air enthalpy value is greater than or equal to the return air enthalpy value, the average value of the A-end environment temperature is greater than the preset value of the first mode switching temperature, and the duration is greater than the set value of the duration, automatically switching the current operation mode into a double-feed double-row operation mode under the small fresh air working condition;
if the fresh air enthalpy value is smaller than or equal to the return air enthalpy value, the average value of the A-end environment temperature is larger than the preset value of the first mode switching temperature, and the duration is larger than the set value of the duration, automatically switching the current operation mode into a double-feed double-row operation mode under the full fresh air working condition;
If the fresh air enthalpy value is smaller than or equal to the return air enthalpy value, the average value of the A-side environment temperature is larger than the preset value of the second mode switching temperature and smaller than the preset value of the first mode switching temperature, the average value of the A-side environment temperature is larger than or equal to the average value of the B-side environment temperature, and the duration time is larger than the set value of the duration time, automatically switching the current operation mode into an A-side and B-side operation mode under the full fresh air working condition;
if the fresh air enthalpy value is smaller than or equal to the return air enthalpy value, the average value of the B-side environmental temperature is larger than the preset value of the second mode switching temperature and smaller than the preset value of the first mode switching temperature, the average value of the B-side environmental temperature is larger than or equal to the average value of the A-side environmental temperature, and the duration time is larger than the set value of the duration time, the current operation mode is automatically switched into the B-side A-row operation mode under the full fresh air working condition;
if the carbon dioxide concentration of the end A or the carbon dioxide concentration of the end B is larger than the carbon dioxide concentration preset protection value and the duration is larger than the duration set value, automatically switching the current operation mode into a double-feeding double-discharging operation mode under the full fresh air working condition;
otherwise, the current mode state is maintained;
when the season to which the current operation mode belongs is a transitional season, automatically switching the current operation mode according to a third mode switching temperature preset value, the duration time set value, a fourth mode switching temperature preset value, the carbon dioxide concentration preset protection value, the fresh air enthalpy value, the return air enthalpy value, the A-end environment temperature, the B-end environment temperature, the A-end carbon dioxide concentration and the B-end carbon dioxide concentration to obtain a switched current operation mode, wherein the method specifically comprises the following steps of:
If the fresh air enthalpy value is greater than or equal to the return air enthalpy value, the average value of the A-end environment temperature is greater than the preset value of the third mode switching temperature, and the duration is greater than the duration set value, automatically switching the current operation mode into a double-feed double-row operation mode under the small fresh air working condition;
if the fresh air enthalpy value is smaller than or equal to the return air enthalpy value, the average value of the A-end environment temperature is larger than the preset value of the third mode switching temperature, and the duration is larger than the set value of the duration, automatically switching the current operation mode into a double-feeding double-row operation mode under the full fresh air working condition;
if the fresh air enthalpy value is smaller than or equal to the return air enthalpy value, the average value of the A-side environment temperature is larger than the preset value of the fourth mode switching temperature and smaller than the preset value of the third mode switching temperature, the average value of the A-side environment temperature is larger than or equal to the average value of the B-side environment temperature, and the duration time is larger than the set value of the duration time, automatically switching the current operation mode into an A-side and B-side operation mode under the full fresh air working condition;
if the fresh air enthalpy value is smaller than or equal to the return air enthalpy value, the average value of the B-end environment temperature is larger than the preset value of the fourth mode switching temperature and smaller than the preset value of the third mode switching temperature, the average value of the B-end environment temperature is larger than or equal to the average value of the A-end environment temperature, and the duration time is larger than the set value of the duration time, the current operation mode is automatically switched into the B-feeding A-discharging operation mode under the full fresh air working condition;
If the carbon dioxide concentration of the end A or the carbon dioxide concentration of the end B is larger than the carbon dioxide concentration preset protection value and the duration is larger than the duration set value, automatically switching the current operation mode into a row B and row A operation mode under the full fresh air working condition;
otherwise, the current mode state is maintained;
when the season to which the current operation mode belongs is winter, automatically switching the current operation mode according to a fifth mode switching temperature preset value, the duration time set value, the carbon dioxide concentration preset protection value, the fresh air enthalpy value, the return air enthalpy value, the A end environment temperature, the B end environment temperature, the A end carbon dioxide concentration and the B end carbon dioxide concentration to obtain a switched current operation mode, wherein the method specifically comprises the following steps of:
if the fresh air enthalpy value is greater than or equal to the return air enthalpy value, and the average value of the A-end environment temperature is greater than the preset value of the fifth mode switching temperature or the average value of the B-end environment temperature is greater than the preset value of the fifth mode switching temperature, and the duration time is greater than the set value of the duration time, automatically switching the current operation mode into a double-feeding double-row operation mode under the small fresh air working condition;
the average value of the environment temperature in the A end is smaller than the preset value of the switching temperature of the fifth mode, the average value of the environment temperature in the B end is smaller than the preset value of the switching temperature of the fifth mode, and the duration is larger than the set value of the duration, so that the current running mode is automatically switched to the standby working condition;
If the carbon dioxide concentration of the end A or the carbon dioxide concentration of the end B is larger than the carbon dioxide concentration preset protection value and the duration is larger than the duration set value, automatically switching the current operation mode into a double-feeding double-discharging operation mode under the full fresh air working condition;
by adopting the subway station ventilation air conditioning air system control method, a small fresh air fan, a blower, a back/exhaust fan, a small fresh air valve, a surface air cooler water valve, a blowing interlocking air valve, a back/exhaust interlocking air valve, an exhaust valve and a back air valve are bound, so that the convenient operation of one-key start and stop is realized, the start and stop algorithm defines the start and stop sequence requirements of each device, and in the start or stop process, once the device fails, the device can be automatically stopped according to the reverse sequence.
2. The method for controlling a ventilation air conditioning system of a subway station according to claim 1, wherein the acquiring the current operation mode and the season to which the current operation mode belongs further includes, before:
acquiring a mode number input by a user;
according to the mode number input by the user, a current operation mode and seasons and working conditions to which the current operation mode belongs are obtained by utilizing a seasonal working condition mode table; the season working condition mode table comprises operation modes and mode numbers under various seasons and working conditions;
According to the mode number input by the user, the state of the controlled equipment in the current running mode is obtained by utilizing the equipment state table;
according to the state of the controlled equipment in the current operation mode, a control signal is sent to the controlled equipment; the control signals include a start signal and a stop signal.
3. The method for controlling the ventilation and air conditioning system of the subway station according to claim 1, wherein the determining the fresh air enthalpy value according to the fresh air temperature and the fresh air humidity specifically comprises:
determining a first moisture content according to the fresh air humidity;
and determining a fresh air enthalpy value according to the fresh air temperature and the first moisture content.
4. The method for controlling a ventilation air conditioning system of a subway station according to claim 1, wherein the determining the return air enthalpy value according to the return air temperature and the return air humidity specifically includes:
determining a second moisture content from the return air humidity;
and determining a return air enthalpy value according to the return air temperature and the second moisture content.
5. A subway station ventilation air conditioning wind system control device, characterized in that the device comprises:
the fresh air temperature sensor is used for collecting fresh air temperature;
the fresh air humidity sensor is used for collecting fresh air humidity;
The return air temperature sensor is used for collecting return air temperature;
the return air humidity sensor is used for collecting return air humidity;
the environment A temperature sensor is used for acquiring environment A temperature;
the B-end environment temperature sensor is used for acquiring the B-end environment temperature;
the carbon dioxide concentration sensor at the end A is used for collecting the carbon dioxide concentration at the end A;
the carbon dioxide concentration sensor at the end B is used for collecting the carbon dioxide concentration at the end B;
the air treatment module controller is respectively connected with the fresh air temperature sensor, the fresh air humidity sensor, the return air temperature sensor, the return air humidity sensor, the end environment A temperature sensor, the end environment B temperature sensor, the end carbon dioxide concentration sensor and the controlled equipment, and is used for automatically switching a current operation mode by using the subway station ventilation air conditioning air system control method according to any one of claims 1-2 and sending a control signal to the controlled equipment according to the switched current operation mode.
6. The subway station ventilation air conditioning wind system control device according to claim 5, wherein the fresh air temperature sensor and the fresh air humidity sensor are arranged at a fresh air inlet of a fresh air pipeline;
The return air temperature sensor and the return air humidity sensor are arranged at a return air inlet of the return air pipeline;
the A-end environment temperature sensor and the A-end carbon dioxide concentration sensor are arranged on one end ceiling of a subway station room;
the B-end environmental temperature sensor and the B-end carbon dioxide concentration sensor are arranged on the ceiling at the other end of the subway station room.
7. The subway station ventilation air-conditioning air system control device according to claim 5, wherein a mode setting interface is arranged on the air processing module controller;
the mode setting interface is used for acquiring a mode number input by a user.
8. The subway station ventilation air-conditioning air system control device according to claim 5, wherein the number of the a-side environmental temperature sensor, the B-side environmental temperature sensor, the a-side carbon dioxide concentration sensor and the B-side carbon dioxide concentration sensor is 4.
CN202210874780.7A 2022-07-25 2022-07-25 Subway station ventilation air conditioning air system control method and device Active CN115200131B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19508252A1 (en) * 1995-03-08 1996-09-12 Zimmermann Lueftungs Und Waerm Ventilation and heat recovery system for room air conditioner
JP2015218972A (en) * 2014-05-19 2015-12-07 高砂熱学工業株式会社 Underground station air conditioning method and underground station air conditioning system
CN106322634A (en) * 2015-06-26 2017-01-11 广东迪奥技术有限公司 An energy-saving control device and control method for an air conditioner fresh air machine
CN107458402A (en) * 2017-08-04 2017-12-12 青岛海尔空调电子有限公司 A kind of subway's air-conditioning system and control method
CN114234289A (en) * 2021-12-17 2022-03-25 珠海格力电器股份有限公司 Multi-working-condition tail end air conditioning system, control method and control device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104764166B (en) * 2015-04-15 2018-01-16 苏州科技学院 A kind of method and its device for being used to emulate all-air air conditioning system
CN106545937A (en) * 2016-11-15 2017-03-29 河南华东工控技术有限公司 Air conditioning system and control method between spinning
WO2018189790A1 (en) * 2017-04-10 2018-10-18 三菱電機株式会社 Air conditioning ventilation device, air conditioning system, and control method
CN109959076B (en) * 2019-04-10 2021-12-07 重庆大学 Room temperature control ventilation system and control method thereof
CN110848838A (en) * 2019-11-04 2020-02-28 广东申菱环境系统股份有限公司 Air conditioning system for underground space and control method thereof
JP2021105498A (en) * 2019-12-27 2021-07-26 パナソニックＩｐマネジメント株式会社 Ventilation device and heat exchange ventilation device
CN111023532B (en) * 2019-12-31 2020-11-27 中维通(北京)科技有限公司 Intelligent adjusting method for subway ventilation air conditioner
CN214536620U (en) * 2021-02-05 2021-10-29 南京东创节能技术有限公司 Network architecture of air-conditioning and air-water coordination energy-saving control device of subway station

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19508252A1 (en) * 1995-03-08 1996-09-12 Zimmermann Lueftungs Und Waerm Ventilation and heat recovery system for room air conditioner
JP2015218972A (en) * 2014-05-19 2015-12-07 高砂熱学工業株式会社 Underground station air conditioning method and underground station air conditioning system
CN106322634A (en) * 2015-06-26 2017-01-11 广东迪奥技术有限公司 An energy-saving control device and control method for an air conditioner fresh air machine
CN107458402A (en) * 2017-08-04 2017-12-12 青岛海尔空调电子有限公司 A kind of subway's air-conditioning system and control method
CN114234289A (en) * 2021-12-17 2022-03-25 珠海格力电器股份有限公司 Multi-working-condition tail end air conditioning system, control method and control device

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