CN116659034B - Building thermal environment and building energy-saving control method and system in air-conditioning building - Google Patents
Building thermal environment and building energy-saving control method and system in air-conditioning building Download PDFInfo
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000005192 partition Methods 0.000 claims description 66
- 238000001514 detection method Methods 0.000 claims description 59
- 238000012216 screening Methods 0.000 claims description 36
- 238000004364 calculation method Methods 0.000 claims description 30
- 238000012546 transfer Methods 0.000 claims description 30
- 230000017525 heat dissipation Effects 0.000 claims description 26
- 230000001276 controlling effect Effects 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 13
- 238000004134 energy conservation Methods 0.000 claims description 13
- 230000015654 memory Effects 0.000 claims description 12
- 238000002955 isolation Methods 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 claims description 5
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- 238000004422 calculation algorithm Methods 0.000 claims description 3
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- 230000000977 initiatory effect Effects 0.000 claims description 3
- 238000012806 monitoring device Methods 0.000 claims description 3
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- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 230000009286 beneficial effect Effects 0.000 description 2
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
- F24F2120/14—Activity of occupants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention relates to the field of building energy-saving control, in particular to a building thermal environment and building energy-saving control method and system in an air-conditioning building.
Description
Technical Field
The invention relates to the field of building energy-saving control, in particular to a building thermal environment and building energy-saving control method and system in an air-conditioning building.
Background
The world is in the urban rapid development stage, and the rapid development of the economic society and the continuous improvement of the living standard lead to the increasing of the energy demand and the energy consumption related carbon emission. According to statistics, 10% -30% of energy consumption of countries around the world comes from buildings, so that energy conservation and carbon reduction in the related fields of the buildings are key to reducing carbon emission.
With the progress of living standard, air conditioning systems have been widely used in modern buildings as an important means for controlling indoor thermal environments, and many public buildings such as office places have selected air conditioning as an important means for indoor ventilation and cooling. However, with the popularization of air conditioners, building energy consumption is also becoming more and more serious. At present, a control method for adjusting the power of an air conditioner according to the flow of people is available, so that the energy consumption of a building can be reduced, but in an air-conditioning room, cold air tends to sink, so that the temperature at a low place is often lower than the set temperature of the air conditioner, and the redundant cold energy cannot be fully utilized, so that waste is caused.
The invention discloses a building air conditioner temperature control system based on BIM technology and people flow statistics, which carries out real-time statistics on building people flow through gravity induction, carries out visual monitoring on data by applying the BIM technology, and carries out active real-time adjustment on the power of an air conditioner by counting the change of indoor people flow according to the gravity sensor data, and particularly reduces the power of the air conditioner in advance under the condition of reducing the people flow, so that the indoor energy saving effect and the comfort level are improved.
For example, chinese patent application publication No. CN110925968A discloses an air conditioner control method, an apparatus and an air conditioner, by acquiring image information of people flow, inputting the image information into a prediction model, outputting a people flow prediction result by the prediction model, and controlling the air conditioner according to the prediction result, the technical problem that the air conditioner in the prior art cannot adaptively adjust control parameters according to the people flow in a venue is solved.
The problems presented in the background art are presented in the above patents: in an air-conditioning room, low-position redundant cold energy cannot be fully utilized to cause waste, and in order to solve the problem, the invention designs a building thermal environment and building energy-saving control method and system in an air-conditioning building.
Disclosure of Invention
The invention provides a building thermal environment and building energy-saving control method and system in an air-conditioning building, which can effectively solve the problems in the background technology: in an air-conditioning room, cold air tends to sink, and the temperature at a low place is often lower than the set temperature of the air conditioner, so that the redundant cold energy cannot be fully utilized, and waste is caused.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme.
In a first aspect, the invention provides a building thermal environment and building energy-saving control system in an air-conditioning building, which comprises a partition detection alarm module, a region division module, a cold air transfer module, a temperature detection module, a people flow detection module, a cold load calculation module, an air-conditioning work detection module and a timing control module;
the partition detection alarm module is used for detecting the opening and closing states of all the space partition devices in the air-conditioning building and sending an alarm, wherein the space partition devices comprise doors and windows;
the area dividing module is used for dividing the air-conditioning building into different areas;
the cold air transfer module is used for recovering cold air near the places in each area and transferring the cold air to other areas;
the temperature detection module is used for detecting the temperatures of the refrigerating area and the near area in each area;
the people flow detection module is used for detecting the people flow in each area;
the cold load calculation module is used for calculating the cold load formed by each region based on human body heat dissipation;
the air conditioner work detection module is used for detecting the work state of each air conditioner in the air conditioner building, including whether the air conditioner is started or not and the set work temperature;
the timing control module is used for timing and controlling the work of each module according to the time.
Further, the partition detection alarm module comprises a sensor, an alarm unit and an operation terminal, wherein the sensor, the alarm unit and the operation terminal are arranged on the space partition device;
the cold air transfer module comprises a cold air collecting unit, a cold air transporting unit and a cold air releasing unit;
the cold air collecting unit comprises air inlets, fans and collecting pipelines on the ground below the air supply outlets of all air conditioners in the building;
the cool air release unit comprises a release pipeline arranged at an air supply outlet of the air conditioner;
the cold air transportation unit comprises a branch collection pipeline, a central collecting pipeline and a branch release pipeline;
one end of the branch collecting pipeline is connected with the collecting pipeline of the cold air collecting unit, and the other end of the branch collecting pipeline is connected with one end of the central collecting pipeline;
one end of the branch release pipeline is connected to the other end of the central collecting pipeline, and the other end of the branch release pipeline is connected to the release pipeline of the cold air release unit;
the branch collection pipeline is provided with a flow monitoring device;
the bypass release pipeline is provided with an electromagnetic valve capable of regulating and controlling flow;
the temperature detection module comprises temperature sensors arranged in the refrigerating areas in the areas and temperature sensors in the near areas in the areas;
the people flow detection module comprises a camera and an image processing unit;
the camera is used for monitoring the entrances and exits of each area including stairs, corridor and elevator in the air-conditioning building in real time;
the image processing unit is used for identifying pedestrians through an image processing algorithm and counting the flow of the pedestrians;
the timing control module comprises a clock, a circulation timer and a control unit.
Further, the timing control module is connected with the partition detection alarm module, the air conditioner work detection module, the temperature detection module and the people flow detection module;
the partition detection alarm module and the air conditioner work detection module are respectively connected with the area dividing module;
the temperature detection module, the area division module and the people flow detection module are respectively connected with the cold load calculation module;
the cold load calculation module is connected with the cold air transfer module.
In a second aspect, the present invention provides a method for controlling building thermal environment and building energy conservation in an air-conditioning building, which is implemented based on the building thermal environment and building energy conservation control system in the air-conditioning building, the method comprising the following steps:
s1: setting the start time of a cycle timerEnd of working time->Time of each time-counting working interval->And waiting time for human treatment +.>；
S2: the cycle timer starting from the start timeStarting to count every time the recording time of the cycle timer and the set working interval time +.>The air conditioning building performs primary cold air transfer, and simultaneously resets the time of the circulation timer and restarts timing;
s3: when reaching the end of working timeAt this time, the cycle timer ends.
Further, the specific method of cold air transfer in S2 is as follows:
s21: acquiring the opening and closing conditions of each space partition device, dividing the building space according to the distribution diagram of the building and the opening and closing conditions of each space partition device, and identifying the state of each region, wherein the state is a closed state or an open state;
s22: acquiring the on-off state of each air conditioner, if a certain air conditioner works and the state of the area where the air conditioner is positioned is an open state, initiating an alarm and waiting for artificial treatment, wherein the artificial treatment method comprises the steps of closing the alarm, closing the air conditioner and changing the on-off state of a space partition device in the area where the air conditioner is positioned to change the state of the area into a closed state;
s23: when the alarm has been manually processed, or the time elapsed since the alarm was started and the waiting time for the manual processingAfter equality, at least one of all regionsThe area with the open state and the closed state of the air conditioner is set as a screening area;
s24: acquiring the working set temperature, the refrigerating area temperature value and the near area temperature value of the air conditioner in the screening area, judging whether each screening area is a cold air collecting area according to the working set temperature, the refrigerating area temperature value and the near area temperature value of the air conditioner, and ending the cold air transferring work and waiting for the next cold air transferring if the judging result is that the cold air collecting area is not available;
s25: judging whether each screening area is a cold air distribution area, if the judging result is that the cold air distribution area is not available, ending the cold air transfer work and waiting for the next cold air transfer;
s26: calculating the flow rate of cold air distribution in each cold air distribution area;
s27: collecting and distributing cool air according to the calculation result until the recording time of the circulation timer and the set working interval timeEnding when equal.
Further, in S21, the building space is divided into areas, where a specific rule of dividing the areas is:
s211: dividing a space surrounded by a wall or partition and a totally closed space partition device into an area, wherein the area is in a closed state;
s212: dividing a space surrounded by a wall or partition and a partially closed and partially open space partition device into an area, wherein at least one side is an open space partition inside a building and the other side is outside the building, or at least one side is an open space partition of a cross-layer facility, the cross-layer facility comprises stairs, an elevator and a ventilation shaft, and the state of the area is an open state;
s213: dividing a space surrounded by a wall or partition and all open space partition devices into an area, wherein at least one side is an open space partition inside a building and the other side is an open space partition outside the building, or at least one side is an open space partition of a cross-layer facility, the cross-layer facility comprises stairs, elevators and ventilation shafts, and the state of the area is an open state;
wherein the isolation means a facility with an isolation function and comprises a screen, a bookcase and a glass wall.
Further, in S24, it is determined whether each screening area is a cold air collecting area, and a specific determination rule is:
s241: for a screening area with only a single working air conditioner in a building, if the temperature value of a refrigerating area in the screening area is equal to the working set temperature value of the opened air conditioner and the temperature value of a near area in the area is smaller than the temperature value of the refrigerating area, the area is a cold air collecting area;
s242: for a screening area containing a plurality of working air conditioners in a building, if the temperature value of a refrigerating area in the screening area is equal to the minimum value of the working set temperature values of the plurality of opened air conditioners, and the temperature value of a near area in the area is smaller than the temperature value of the refrigerating area, the area is a cold air collecting area.
Further, the specific judgment rule of S25 is: and for a screening area in the building, acquiring the people flow in the screening area, and if the people flow is not 0, the screening area is a cold air distribution area.
Further, the specific calculation method in S26 is as follows:
s261: counting the number of cold air collecting areasAcquiring the cold air collecting flow in the ith cold air collecting area；
S262: calculating the total flowThe specific calculation method comprises the following steps:
；
s263: counting the number of cold air distribution areasIf->The specific calculation method of the cold air distribution flow rate is as follows:
wherein ,refers to the cold air distribution flow rate when the number of the cold air distribution areas is 1;
s264: if it isAcquiring the flow of people in each cold air distribution area>；
S265: when (when)When the human body heat dissipation in each cold air distribution area is calculatedThe specific calculation method comprises the following steps:
wherein ,for the sensible heat dissipation of adult men at different room temperature and labor properties +.>For the latent heat dissipation of adult men at different room temperature and labor properties +.>For the cluster coefficient, +.>Is->The individual cold air distribution areas are at the operating interval +.>Sensible heat dissipation cold load coefficient of human body;
s266: when (when)At this time, the distribution flow rate +_ of each cool air distribution area is calculated>The specific calculation method comprises the following steps:
。
further, the S265, wherein sensible heat dissipation refers to heat dissipated by the human body through radiation, conduction and convection of the skin surface;
the latent heat dissipation refers to the heat dissipated by the human body through respiration and perspiration evaporation;
clustering coefficientsBased on the heat dissipation of adult men, the coefficient of reduction is considered according to the age and sex of the people.
In a third aspect, the present invention provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing a building thermal environment and a building energy saving control method in an air-conditioning building as described in any one of the above when executing the computer program.
In a fourth aspect, the present invention provides a computer readable storage medium having a computer program stored thereon, which when executed by a processor implements a building thermal environment and a building energy saving control method in an air conditioning building as described in any one of the above.
Compared with the prior art, the invention has the following beneficial effects:
(1) The detection of the space isolation device is divided into areas, whether the area where the air conditioner in the working state is located is a closed area or an open area is identified, and if the area is the open area, an alarm is given, so that related staff is timely reminded of closing the door or window, energy waste caused by human negligence is prevented, and building energy consumption is saved;
(2) The cold air is collected and supercooled near the ground in the cold air collecting area and released into the cold air distribution area, so that redundant cold energy of the near-ground area of the air-conditioning refrigerating space is collected and utilized, the refrigerating energy of the air conditioner is saved, and the comfort level of people in the building is improved;
(3) By setting the working interval time, the system can select once every other working interval time, update the temperature of each area in time, reasonably select the cold air collecting area and the cold air distributing area and transfer, thereby not only ensuring that the temperature of each area is not affected by cold air transfer, but also ensuring that redundant cold energy is utilized in time.
Drawings
FIG. 1 is a flow chart of the operation of a building thermal environment and building energy saving control system in an air conditioning building according to the present invention;
FIG. 2 is a flow chart of the method for controlling the thermal environment and energy conservation of a building in an air-conditioned building according to the present invention;
FIG. 3 is a flow chart of the operation of cold air transfer in the building thermal environment and building energy saving control method of the air conditioning building according to the present invention;
fig. 4 is a schematic diagram of air conditioning distribution in an air conditioning building and an in-building air conditioning structure according to embodiment 2 of the present invention;
fig. 5 is a schematic view showing the division of air-conditioning building areas in embodiment 2 of the present invention.
Detailed Description
The following detailed description of the present invention is made with reference to the accompanying drawings and specific embodiments, and it is to be understood that the specific features of the embodiments and the embodiments of the present invention are detailed description of the technical solutions of the present invention, and not limited to the technical solutions of the present invention, and that the embodiments and the technical features of the embodiments of the present invention may be combined with each other without conflict.
In order that the technical means, the creation characteristics, the achievement of the objects and the effects of the present invention may be easily understood, it should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "a", "an", "the" and "the" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The invention is further described below in conjunction with the detailed description.
Example 1
The embodiment introduces a building thermal environment and building energy-saving control system in an air-conditioning building, as shown in fig. 1, comprising a partition detection alarm module, a region dividing module, a cold air transfer module, a temperature detection module, a people flow detection module, a cold load calculation module, an air-conditioning work detection module and a timing control module;
the partition detection alarm module is used for detecting the opening and closing states of all the space partition devices in the air-conditioning building and sending an alarm, wherein the space partition devices comprise doors and windows;
the area dividing module is used for dividing the air-conditioning building into different areas;
the cold air transfer module is used for recovering cold air near the places in each area and transferring the cold air to other areas;
the temperature detection module is used for detecting the temperatures of the refrigerating area and the near area in each area;
the people flow detection module is used for detecting the people flow in each area;
the cold load calculation module is used for calculating the cold load formed by each region based on human body heat dissipation;
the air conditioner work detection module is used for detecting the work state of each air conditioner in the air conditioner building, including whether the air conditioner is started or not and the set work temperature;
the timing control module is used for timing and controlling the work of each module according to the time.
In this embodiment, the partition detection alarm module includes a sensor, an alarm unit and an operation terminal, which are disposed in a space partition device;
the cold air transfer module comprises a cold air collecting unit, a cold air transporting unit and a cold air releasing unit;
the cold air collecting unit comprises air inlets, fans and collecting pipelines on the ground below the air supply outlets of all air conditioners in the building;
the cool air release unit comprises a release pipeline arranged at an air supply outlet of the air conditioner;
the cold air transportation unit comprises a branch collection pipeline, a central collecting pipeline and a branch release pipeline;
one end of the branch collecting pipeline is connected with the collecting pipeline of the cold air collecting unit, and the other end of the branch collecting pipeline is connected with one end of the central collecting pipeline;
one end of the branch release pipeline is connected to the other end of the central collecting pipeline, and the other end of the branch release pipeline is connected to the release pipeline of the cold air release unit;
the branch collection pipeline is provided with a flow monitoring device;
the bypass release pipeline is provided with an electromagnetic valve capable of regulating and controlling flow;
the temperature detection module comprises temperature sensors arranged in the refrigerating areas in the areas and temperature sensors in the near areas in the areas;
the people flow detection module comprises a camera and an image processing unit;
the camera is used for monitoring the entrances and exits of each area including stairs, corridor and elevator in the air-conditioning building in real time;
the image processing unit is used for identifying pedestrians through an image processing algorithm and counting the flow of the pedestrians;
the timing control module comprises a clock, a circulation timer and a control unit.
In this embodiment, the timing control module is connected to the partition detection alarm module, the air conditioner operation detection module, the temperature detection module, and the people flow detection module;
the partition detection alarm module and the air conditioner work detection module are respectively connected with the area dividing module;
the temperature detection module, the area division module and the people flow detection module are respectively connected with the cold load calculation module;
the cold load calculation module is connected with the cold air transfer module.
Example 2
The embodiment introduces a method for controlling building thermal environment and building energy conservation in an air-conditioning building, as shown in fig. 2 and 3, and the method is realized based on the system for controlling building thermal environment and building energy conservation in the air-conditioning building, and comprises the following steps:
s1: setting the start time of a cycle timerEnd of working time->Time of each time-counting working interval->And waiting time for human treatment +.>；
S2: the cycle timer starting from the start timeStarting to count every time the recording time of the cycle timer and the set working interval time +.>The air conditioning building performs primary cold air transfer, and simultaneously resets the time of the circulation timer and restarts timing;
s3: when reaching the end of working timeAt this time, the cycle timer ends.
In the present embodiment, the start time of the cycle timerSet to morning 8:00;
in the present embodiment, the end operation time of the cycle timerSet to night 18:00;
in the present embodiment, the cycle timer counts the time of the working interval each timeSet to 30 minutes;
in the present embodiment, latency of human processingSet to 5 minutes.
Then in this embodiment the cycle timer goes from 8 a.m.: 00 starts timing until night 18: and 00, every time the recording time of the circulation timer is 30 minutes, the air conditioning building performs cold air transfer once, and simultaneously the circulation timer resets the time and resumes timing.
In this embodiment, the specific method of cold air transfer in S2 is:
s21: acquiring the opening and closing conditions of each space partition device, dividing the building space according to the distribution diagram of the building and the opening and closing conditions of each space partition device, and identifying the state of each region, wherein the state is a closed state or an open state;
s22: acquiring the on-off state of each air conditioner, if a certain air conditioner works and the state of the area where the air conditioner is positioned is an open state, initiating an alarm and waiting for artificial treatment, wherein the artificial treatment method comprises the steps of closing the alarm, closing the air conditioner and changing the on-off state of a space partition device in the area where the air conditioner is positioned to change the state of the area into a closed state;
s23: when the alarm has been manually processed, or the time elapsed since the alarm was started and the waiting time for the manual processingAfter the air conditioning states are equal, at least one area with the air conditioning state being an open state and the air conditioning state being a closed state in all areas is set as a screening area;
s24: acquiring the working set temperature, the refrigerating area temperature value and the near area temperature value of the air conditioner in the screening area, judging whether each screening area is a cold air collecting area according to the working set temperature, the refrigerating area temperature value and the near area temperature value of the air conditioner, and ending the cold air transferring work and waiting for the next cold air transferring if the judging result is that the cold air collecting area is not available;
s25: judging whether each screening area is a cold air distribution area, if the judging result is that the cold air distribution area is not available, ending the cold air transfer work and waiting for the next cold air transfer;
s26: calculating the flow rate of cold air distribution in each cold air distribution area;
s27: cooling according to the calculation resultCollecting and distributing gas until the time recorded by the cycle timer and the set working interval timeEnding when equal.
In this embodiment, a schematic diagram of an air-conditioning building and an air-conditioning distribution situation are shown in fig. 4.
In the figure, D1-D8 are doors, W1-W5 are windows, and A1-A7 are air conditioners.
When cold air transfer work is started, the opening and closing states of the space isolation device are as follows:
d1 and D8 are in an open state, and D2-D7 are in a closed state;
w3 is in an open state, and W1, W2, W4, W5 are in a closed state.
In this embodiment, in S21, the building space is divided into areas, where a specific rule of dividing the areas is:
s211: dividing a space surrounded by a wall or partition and a totally closed space partition device into an area, wherein the area is in a closed state;
s212: dividing a space surrounded by a wall or partition and a partially closed and partially open space partition device into an area, wherein at least one side is an open space partition inside a building and the other side is outside the building, or at least one side is an open space partition of a cross-layer facility, the cross-layer facility comprises stairs, an elevator and a ventilation shaft, and the state of the area is an open state;
s213: dividing a space surrounded by a wall or partition and all open space partition devices into an area, wherein at least one side is an open space partition inside a building and the other side is an open space partition outside the building, or at least one side is an open space partition of a cross-layer facility, the cross-layer facility comprises stairs, elevators and ventilation shafts, and the state of the area is an open state;
wherein the isolation means a facility with an isolation function and comprises a screen, a bookcase and a glass wall.
The division result of the areas is shown in fig. 5, and the air-conditioning building is divided into an area B1 in a closed state, an area B2 in an open state, an area B3 in a closed state, an area B4 in an open state, an area B5 in a closed state, and an area B6 in a closed state.
In this embodiment, the on-off state of each air conditioner is:
A1-A5 and A7 are in an open state, and A6 is in a closed state;
in this embodiment, zone B2 and zone B4 will initiate an alarm awaiting human treatment.
In this embodiment, the processing method for each area where an alarm is initiated is:
the processing method of the area B2 is to turn off the air conditioner; the processing method for the region B4 is to close the region B4 to be in a closed state by closing the region D8.
In this embodiment, after the completion of the artificial treatment, the selected area is: region B1, region B4, region B5, and region B6.
In this embodiment, the operation set temperature of each air conditioner in each screened area is:
in the region B1, the operation set temperature of the air conditioner numbered A3 is 25 ℃, and the operation set temperature of the air conditioner numbered A5 is 23 ℃;
in the region B4, the working set temperature of the air conditioner with the number A4 is 20 ℃;
in the region B5, the working set temperature of the air conditioner with the number A2 is 26 ℃;
in the region B6, the working set temperature of the air conditioner with the number A1 is 24 ℃;
in this embodiment, the temperature values of the refrigerating area and the near-area temperature of the screened areas are:
the temperature value of the refrigerating area of the area B1 is 23 ℃, and the temperature value of the near area is 20 ℃;
the temperature value of the refrigerating area of the area B4 is 20 ℃, and the temperature value of the near area is 16 ℃;
the temperature value of the refrigerating area of the area B5 is 26 ℃, and the temperature value of the near area is 23 ℃;
the temperature value of the refrigerating area of the area B6 is 27 ℃, and the temperature value of the near area is 26 ℃;
in this embodiment, in S24, a specific judgment rule is that whether each screening area is a cold air collecting area is:
s241: for a screening area with only a single working air conditioner in a building, if the temperature value of a refrigerating area in the screening area is equal to the working set temperature value of the opened air conditioner and the temperature value of a near area in the area is smaller than the temperature value of the refrigerating area, the area is a cold air collecting area;
s242: for a screening area containing a plurality of working air conditioners in a building, if the temperature value of a refrigerating area in the screening area is equal to the minimum value of the working set temperature values of the plurality of opened air conditioners, and the temperature value of a near area in the area is smaller than the temperature value of the refrigerating area, the area is a cold air collecting area.
In this embodiment, the cold air collecting area is: region B1, region B4, and region B5.
In this embodiment, the specific judgment rule of S25 is: and for a screening area in the building, acquiring the people flow in the screening area, and if the people flow is not 0, the screening area is a cold air distribution area.
In the present embodiment, the flow rate of people in the area B1 is 27; the traffic flow of the region B4 is 0; the people flow rate in the area B5 is 15; the people flow rate in the area B6 is 0;
in the present embodiment, the cold air distribution area is: region B1 and region B5.
In this embodiment, the specific calculation method in S26 is as follows:
s261: counting the number of cold air collecting areasAcquiring the cold air collecting flow in the ith cold air collecting area；
S262: calculating the total flowThe specific calculation method comprises the following steps:
；
s263: counting the number of cold air distribution areasIf->The specific calculation method of the cold air distribution flow rate is as follows:
wherein ,refers to the cold air distribution flow rate when the number of the cold air distribution areas is 1;
s264: if it isAcquiring the flow of people in each cold air distribution area>；
S265: when (when)When the human body heat dissipation in each cold air distribution area is calculatedThe specific calculation method comprises the following steps:
wherein ,for different room temperature and labor propertiesSensible heat dissipation capacity of adult men, +.>For the latent heat dissipation of adult men at different room temperature and labor properties +.>For the cluster coefficient, +.>Is->The individual cold air distribution areas are at the operating interval +.>Sensible heat dissipation cold load coefficient of human body;
s266: when (when)At this time, the distribution flow rate +_ of each cool air distribution area is calculated>The specific calculation method comprises the following steps:
。
in the present embodiment, S265, wherein sensible heat dissipation refers to heat dissipated by radiation, conduction, and convection of a human body through the skin surface;
the latent heat dissipation refers to the heat dissipated by the human body through respiration and perspiration evaporation;
in the present embodiment, the number of cold air collecting areasThe cold air collecting flow in the first cold air collecting area is +.>The cold air collecting flow in the second cold air collecting area is +.>The cold air collecting flow in the third cold air collecting area is +.>；
In this embodiment, the total flow is collected；
In the present embodiment, the number of cold air distribution areas；
In the present embodiment, the traffic flow of the area B1 is 27, and the traffic flow of the area B5 is 15;
in the present embodiment, the cluster coefficients for the region B1 and the region B5Taking 0.89, human body sensible heat radiation cold load coefficient within 30 minutes>Taking 0.8;
in the present embodiment, for the region B1, sensible heat dissipating capacity of adult men at different room temperature and labor propertiesGet->Latent heat dissipating capacity of adult men at different room temperature and labor properties>Get->；
In the present embodiment, for zone B5, sensible heat dissipating capacity of adult men at different room temperature and labor propertiesTaking outLatent heat dissipating capacity of adult men at different room temperature and labor properties>Get->。
In the present embodiment, the cooling load generated by human body heat dissipation in the region B1About->Cold load formed by human body heat dissipation in region B5>About->；
In the present embodiment, the distribution flow rate of the area B1 is calculatedIs->Distribution flow rate of region B2Is->。
Example 3
The present embodiment provides an electronic device including: a processor and a memory, wherein the memory stores a computer program for the processor to call;
the processor executes the building thermal environment and building energy-saving control method in the air-conditioning building by calling the computer program stored in the memory.
The electronic device may have a relatively large difference due to different configurations or performances, and may include one or more processors (Central Processing Units, CPU) and one or more memories, where at least one computer program is stored in the memories, and the computer program is loaded and executed by the processors to implement a method for controlling building thermal environment and building energy conservation in an air-conditioning building provided by the method embodiment. The electronic device can also include other components for implementing the functions of the device, for example, the electronic device can also have wired or wireless network interfaces, input-output interfaces, and the like, for inputting and outputting data. The present embodiment is not described herein.
Example 4
The present embodiment proposes a computer-readable storage medium having stored thereon an erasable computer program;
when the computer program runs on the computer equipment, the computer equipment is caused to execute the building thermal environment and building energy-saving control method in the air-conditioning building.
For example, the computer readable storage medium can be Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), compact disk Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM), magnetic tape, floppy disk, optical data storage device, etc.
In summary, the embodiment of the invention has the following beneficial effects:
(1) The detection of the space isolation device is divided into areas, whether the area where the air conditioner in the working state is located is a closed area or an open area is identified, and if the area is the open area, an alarm is given, so that related staff is timely reminded of closing the door or window, energy waste caused by human negligence is prevented, and building energy consumption is saved;
(2) The cold air is collected and supercooled near the ground in the cold air collecting area and released into the cold air distribution area, so that redundant cold energy of the near-ground area of the air-conditioning refrigerating space is collected and utilized, the refrigerating energy of the air conditioner is saved, and the comfort level of people in the building is improved;
(3) By setting the working interval time, the system can select once every other working interval time, update the area temperature of each area in time, reasonably select the cold air collecting area and the cold air distributing area and transfer, thereby not only ensuring that the temperature of each area is not affected by cold air transfer, but also ensuring that redundant cold energy is utilized in time.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (11)
1. A building thermal environment and building energy-saving control method in an air-conditioning building is characterized in that: the method comprises the following steps:
s1: setting the start time of a cycle timerEnd of working time->Time of each time-counting working interval->And waiting time for human treatment +.>；
S2: the cycle timer starting from the start timeStarting to count every time the recording time of the cycle timer and the set working interval time +.>The air conditioning building performs primary cold air transfer, and simultaneously resets the time of the circulation timer and restarts timing;
s3: when reaching the end of working timeWhen the circulation timer finishes timing;
the specific method for transferring the cold air in the S2 is as follows:
s21: acquiring the opening and closing conditions of each space partition device, dividing the building space according to the distribution diagram of the building and the opening and closing conditions of each space partition device, and identifying the state of each region, wherein the state is a closed state or an open state;
s22: acquiring the on-off state of each air conditioner, if a certain air conditioner works and the state of the area where the air conditioner is positioned is an open state, initiating an alarm and waiting for artificial treatment, wherein the artificial treatment method comprises the steps of closing the alarm, closing the air conditioner and changing the on-off state of a space partition device in the area where the air conditioner is positioned to change the state of the area into a closed state;
s23: when the alarm has been manually processed, or the time elapsed since the alarm was started and the waiting time for the manual processingAfter the air conditioning states are equal, at least one area with the air conditioning state being an open state and the air conditioning state being a closed state in all areas is set as a screening area;
s24: acquiring the working set temperature, the refrigerating area temperature value and the near area temperature value of the air conditioner in the screening area, judging whether each screening area is a cold air collecting area according to the working set temperature, the refrigerating area temperature value and the near area temperature value of the air conditioner, and ending the cold air transferring work and waiting for the next cold air transferring if the judging result is that the cold air collecting area is not available;
s25: judging whether each screening area is a cold air distribution area, if the judging result is that the cold air distribution area is not available, ending the cold air transfer work and waiting for the next cold air transfer;
s26: calculating the flow rate of cold air distribution in each cold air distribution area;
s27: collecting and distributing cool air according to the calculation result until the recording time of the circulation timer and the set working interval timeEnding when equal.
2. The method for controlling building thermal environment and building energy conservation in an air-conditioned building according to claim 1, wherein the method comprises the following steps: in the step S21, the building space is divided into areas, wherein a specific rule of dividing the areas is as follows:
s211: dividing a space surrounded by a wall or partition and a totally closed space partition device into an area, wherein the area is in a closed state;
s212: dividing a space surrounded by a wall or partition and a partially closed and partially open space partition device into an area, wherein at least one side is an open space partition inside a building and the other side is outside the building, or at least one side is an open space partition of a cross-layer facility, the cross-layer facility comprises stairs, an elevator and a ventilation shaft, and the state of the area is an open state;
s213: dividing a space surrounded by a wall or partition and all open space partition devices into an area, wherein at least one side is an open space partition inside a building and the other side is an open space partition outside the building, or at least one side is an open space partition of a cross-layer facility, the cross-layer facility comprises stairs, elevators and ventilation shafts, and the state of the area is an open state;
wherein the isolation refers to a facility with an isolation function.
3. The method for controlling building thermal environment and building energy conservation in an air-conditioning building according to claim 1, wherein the method comprises the following steps: the step S24, wherein a specific judgment rule is that whether each screening area is a cold air collecting area is:
s241: for a screening area with only a single working air conditioner in a building, if the temperature value of a refrigerating area in the screening area is equal to the working set temperature value of the opened air conditioner and the temperature value of a near area in the area is smaller than the temperature value of the refrigerating area, the area is a cold air collecting area;
s242: for a screening area containing a plurality of working air conditioners in a building, if the temperature value of a refrigerating area in the screening area is equal to the minimum value of the working set temperature values of the plurality of opened air conditioners, and the temperature value of a near area in the area is smaller than the temperature value of the refrigerating area, the area is a cold air collecting area.
4. The method for controlling building thermal environment and building energy conservation in an air-conditioning building according to claim 1, wherein the method comprises the following steps: the specific judgment rule of S25 is as follows: and for a screening area in the building, acquiring the people flow in the screening area, and if the people flow is not 0, the screening area is a cold air distribution area.
5. The method for controlling building thermal environment and building energy conservation in an air-conditioning building according to claim 1, wherein the method comprises the following steps: the specific calculation method of the S26 is as follows:
s261: counting the number of cold air collecting areasAcquiring the cold air collecting flow in the ith cold air collecting area；
S262: calculating the total flowThe specific calculation method comprises the following steps:
；
s263: counting the number of cold air distribution areasIf->The specific calculation method of the cold air distribution flow rate is as follows:
；
wherein ,refers to the cold air distribution flow rate when the number of the cold air distribution areas is 1;
s264: if it isAcquiring the flow of people in each cold air distribution area>；
S265: when (when)When the human body heat dissipation in each cold air distribution area is calculated, the cold load formed by human body heat dissipation is calculated>The specific calculation method comprises the following steps:
；
wherein ,for the sensible heat dissipation of adult men at different room temperature and labor properties +.>For the latent heat dissipation of adult men at different room temperature and labor properties +.>For the cluster coefficient, +.>Is->The individual cold air distribution areas are at the operating interval +.>Sensible heat dissipation cold load coefficient of human body;
s266: when (when)At this time, the distribution flow rate +_ of each cool air distribution area is calculated>The specific calculation method comprises the following steps:
。
6. the method for controlling building thermal environment and building energy conservation in an air-conditioning building according to claim 5, wherein the method comprises the following steps: the S265, wherein sensible heat dissipation refers to heat dissipated by the human body through radiation, conduction and convection of the skin surface;
the latent heat dissipation refers to the heat dissipated by the human body through respiration and perspiration evaporation;
clustering coefficientsBased on the heat dissipation of adult men, the coefficient of reduction is considered according to the age and sex of the people.
7. A building thermal environment and building energy-saving control system in an air-conditioning building, which is realized based on the building thermal environment and building energy-saving control method in an air-conditioning building according to any one of claims 1 to 6, characterized in that: the control system comprises a partition detection alarm module, a region division module, a cold air transfer module, a temperature detection module, a people flow detection module, a cold load calculation module, an air conditioner work detection module and a timing control module;
the partition detection alarm module is used for detecting the opening and closing states of all the space partition devices in the air-conditioning building and sending an alarm, wherein the space partition devices comprise doors and windows;
the area dividing module is used for dividing the air-conditioning building into different areas;
the cold air transfer module is used for recovering cold air near the places in each area and transferring the cold air to other areas;
the temperature detection module is used for detecting the temperatures of the refrigerating area and the near area in each area;
the people flow detection module is used for detecting the people flow in each area;
the cold load calculation module is used for calculating the cold load formed by each region based on human body heat dissipation;
the air conditioner work detection module is used for detecting the work state of each air conditioner in the air conditioner building, including whether the air conditioner is started or not and the set work temperature;
the timing control module is used for timing and controlling the work of each module according to the time.
8. The building thermal environment and building energy saving control system in an air conditioning building of claim 7, wherein:
the partition detection alarm module comprises a sensor, an alarm unit and an operation terminal, wherein the sensor, the alarm unit and the operation terminal are arranged on the space partition device;
the cold air transfer module comprises a cold air collecting unit, a cold air transporting unit and a cold air releasing unit;
the cold air collecting unit comprises air inlets, fans and collecting pipelines on the ground below the air supply outlets of all air conditioners in the building;
the cool air release unit comprises a release pipeline arranged at an air supply outlet of the air conditioner;
the cold air transportation unit comprises a branch collection pipeline, a central collecting pipeline and a branch release pipeline;
one end of the branch collecting pipeline is connected with the collecting pipeline of the cold air collecting unit, and the other end of the branch collecting pipeline is connected with one end of the central collecting pipeline;
one end of the branch release pipeline is connected to the other end of the central collecting pipeline, and the other end of the branch release pipeline is connected to the release pipeline of the cold air release unit;
the branch collection pipeline is provided with a flow monitoring device;
the bypass release pipeline is provided with an electromagnetic valve capable of regulating and controlling flow;
the temperature detection module comprises temperature sensors arranged in the refrigerating areas in the areas and temperature sensors in the near areas in the areas;
the people flow detection module comprises a camera and an image processing unit;
the camera is used for monitoring the entrances and exits of each area including stairs, corridor and elevator in the air-conditioning building in real time;
the image processing unit is used for identifying pedestrians through an image processing algorithm and counting the flow of the pedestrians;
the timing control module comprises a clock, a circulation timer and a control unit.
9. The building thermal environment and building energy saving control system in an air conditioning building of claim 7, wherein:
the timing control module is connected with the partition detection alarm module, the air conditioner work detection module, the temperature detection module and the people flow detection module;
the partition detection alarm module and the air conditioner work detection module are respectively connected with the area dividing module;
the temperature detection module, the area division module and the people flow detection module are respectively connected with the cold load calculation module;
the cold load calculation module is connected with the cold air transfer module.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor, when executing the computer program, implements a building thermal environment and a building energy saving control method in an air conditioning building according to any one of claims 1 to 6.
11. A computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and when the computer program is executed by a processor, the method for controlling building thermal environment and building energy conservation in an air-conditioning building according to any one of claims 1 to 6 is implemented.
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