CN114877435B - Indoor ice stadium humiture combined control method - Google Patents
Indoor ice stadium humiture combined control method Download PDFInfo
- Publication number
- CN114877435B CN114877435B CN202210484994.3A CN202210484994A CN114877435B CN 114877435 B CN114877435 B CN 114877435B CN 202210484994 A CN202210484994 A CN 202210484994A CN 114877435 B CN114877435 B CN 114877435B
- Authority
- CN
- China
- Prior art keywords
- temperature
- air
- ice
- humidity
- allowable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004378 air conditioning Methods 0.000 claims abstract description 39
- 230000001105 regulatory effect Effects 0.000 claims description 35
- 230000001276 controlling effect Effects 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 230000033228 biological regulation Effects 0.000 claims description 17
- 230000001965 increasing effect Effects 0.000 claims description 14
- 238000013459 approach Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000009123 feedback regulation Effects 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 8
- 230000001603 reducing effect Effects 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 230000001960 triggered effect Effects 0.000 claims description 5
- 238000007664 blowing Methods 0.000 description 4
- 230000009182 swimming Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C3/00—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow
- F25C3/02—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow for ice rinks
-
- 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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/08—Installation or apparatus for use in sport halls, e.g. swimming pools, ice rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2600/00—Control issues
- F25C2600/02—Timing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2600/00—Control issues
- F25C2600/04—Control means
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the field of control of air conditioning systems of stadiums on ice, in particular to a method for jointly controlling humiture of an indoor stadiums on ice. The system comprises an air supply system for controlling the air exchange of the venue to control the air inlet temperature and the venue humidity in the venue, an ice making system for making ice and adjusting the temperature of an ice layer and an air conditioning system for adjusting the temperature of an audience; and a combined control system for coordinating the air supply system, the ice making system and the air conditioning system, wherein the combined control system finally influences the temperature and the humidity right above the ice surface; the air supply system, the ice making system and the air conditioning system are respectively and independently feedback controlled. The combined control system starts to perform combined adjustment on the target temperature and target humidity of the air supply system, the ice making system and the air conditioning system when the temperature and the humidity of the air above the ice surface exceed the set range. The three subsystems are then independently feedback controlled again according to the new target temperature and target humidity.
Description
Technical Field
The invention relates to the field of control of air conditioning systems of stadiums on ice, in particular to a method for jointly controlling humiture of an indoor stadiums on ice.
Background
The indoor ice sports stadium hot and humid environment adopts the whole unified temperature, humidity control, and audience district, the regional temperature of ice rink, humidity control target are unanimous, and the system that involves is single, does not have the problem that multiple condition affected each other.
However, after some large-scale ice stadiums or other stadiums such as swimming pool stadiums are transformed into ice pot stadiums, the design and the proposal of the swimming stadiums keep the high-temperature and high-humidity environment of the competition hall, and the temperature of the competition hall and the audience are high. After the venue is converted into the on-ice venue, especially the curling venue, has higher requirements on the quality of ice, and does not need to frost or mist. The swimming stadium competition hall has the characteristics of large number of audience seats in a large space and the like, and does not have the conditions of overall uniform temperature and humidity control in the whole field, so that the method of different temperature and humidity control in the subareas is needed, and the conditions of mutual influence of different temperature and humidity control in the subareas influence the quality of ice.
Disclosure of Invention
The invention discloses a method for controlling the temperature and humidity of an indoor ice stadium in a combined way.
The technical problems to be solved are as follows: the on-ice stadium performing the on-ice event has extremely high requirements on the quality of the ice surface, and the temperature and the humidity of the air above the ice layer have decisive influence on the quality of the ice surface. Large on-ice venues, especially those being retrofitted from e.g. swimming venues, are seen in the independent operation of the individual systems controlling the temperature and humidity, especially the temperature, and the air above the ice layer affecting the quality of the ice surface is affected by a plurality of systems.
In order to solve the technical problems, the indoor on-ice stadium temperature and humidity joint control method adopts the following scheme.
The indoor ice venue temperature and humidity combined control method comprises an air supply system for controlling air intake temperature and venue humidity in a venue through venue ventilation control, an ice making system for making ice and adjusting ice layer temperature and an air conditioning system for adjusting audience temperature; and a combined control system for coordinating the air supply system, the ice making system and the air conditioning system, wherein the combined control system finally influences the temperature and the humidity right above the ice surface;
initializing and setting an air temperature target value T1 and a humidity target value H1 in the venue, detecting the actual temperature T1 'and the actual humidity H1' of air in the venue by an air supply system, and controlling the air supply temperature and the air supply humidity to enable the humiture T1 'and the humiture H1' of the air in the venue to approach the target values T1 and H1 through a feedback regulation mechanism;
initializing a target value T2 of the ice layer temperature, detecting the actual temperature T2 'of the ice layer by the ice making system, and controlling the water outlet temperature to enable the ice layer temperature T2' to approach the target value T2 through a feedback regulation mechanism;
initializing and setting a target value T3 of the temperature of the audience, detecting the actual temperature T3 'of the position of the audience by the air conditioning system, and controlling the power of the air conditioning system to enable the temperature T3' of the audience to approach the target value T3 through a feedback regulation mechanism;
initializing and setting an air temperature allowable range T and a humidity allowable range H right above the ice layer, and detecting the actual temperature T 'and the actual humidity H' of the air above the ice layer by a combined control system; when T 'and H' exceed the allowable ranges T and H, the combined control system firstly adjusts the target values T1 and/or H1 of the air in the venue to enable the T 'and/or H' to return to the allowable ranges T and/or H; when T1 has reached the maximum allowable setting range and T 'has not returned to the allowable range, the combined control system adjusts the target value T2 of the ice layer temperature and the target value T3 of the audience temperature simultaneously or in any order, so that T' returns to the allowable range.
Preferably, the dew point value is set at the same time during initialization, and when the combined control system adjusts the target values T1 and H1 of the air in the venue, the dew point value is kept unchanged, and one of the adjusted T1 and H1 is calculated through the other one and the dew point value.
Preferably, when the temperature T ' is kept at T ' T or T ' T within a set time, the combined control system resets the target temperature T1 of the air in the venue, and keeps the dew point constant, and the new H1 is calculated from the set T1 and the dew point value;
when T1 reaches the maximum allowable setting range and the temperature T 'T or T' T is continued in the setting time, resetting the setting value of the temperature T2 by the combined control system;
when T2 reaches the maximum allowable setting range and the temperature T 'T or T' T is continued in the setting time, resetting the setting value of the temperature T3 by the combined control system;
wherein the setting sequence of the joint control system resetting the adjustments T2 and T3 can be exchanged.
Preferably, when the humidity H ' is continuously maintained at H ' H or H ' H for a set time, the combined control system resets the target humidity H1 of the air in the conditioning and increasing venue, and keeps the dew point constant, and the new T1 is calculated from the set H1 and the dew point value.
Preferably, when the air supply system has reached the maximum or minimum working capacity and the actual temperature T1 'and/or H1' of the air in the venue still cannot fall within the allowable deviation range of T1 and/or H1 after the system is operated for a set time, triggering the combined control system to adjust and increase or decrease the target value of T1 and/or H1; the dew point value is kept unchanged when the combined control system adjusts, and one of the adjusted T1 and H1 is calculated through the other one and the dew point value;
when the ice making system has reached the maximum or minimum working capacity and the actual temperature T2' of the ice layer still cannot fall within the allowable deviation range of T2 after the system runs for a set time, triggering the combined control system to adjust or reduce the target value of T2;
when the air conditioning system has reached the maximum or minimum working capacity and after the system is operated for a set time, the actual temperature T3' of the auditorium still cannot fall within the allowable deviation range of T3, the combined control system is triggered to adjust or reduce the target value of T2.
Preferably, the feedback control of the air supply system includes the steps of:
the SS1 sensor detects the actual temperature T1 'and the actual humidity H1' of the air in the venue, and sets an allowable setting range and an allowable deviation range of T1 and H1;
the SS2 judges whether the actual temperature T1 'is within the allowable deviation range of T1, whether the actual humidity H1' is within the allowable deviation range of H1 or not, if not, the SS3 is entered, and if yes, the existing working state is maintained unchanged;
the SS3 judges whether the actual temperature T1 'is within the allowable setting range of T1 and the actual humidity H1' is within the allowable setting range of H1, if so, the SS4 is entered, and if not, the SS6 is entered;
SS4 dehumidifies and supplies air temperature regulation, decreasing according to Z ℃ when the temperature is regulated, the Z range is 0.5-2 ℃, the regulation interval is 1-2 hours, increasing according to Z ℃ when the temperature is regulated, and the regulation interval is 30-60 minutes; entering SS5 after temperature regulation begins;
the SS5 calculates a new humidity target value H1 according to the new temperature target value T1 and the dew point value regulated by the SS4, resets the humidity target value H1 in a corresponding one-time regulation in place mode, and then enters the SS7;
SS6, if T1 'and/or H1' are/is greater than T1 and H1, the dehumidifying air supply quantity is adjusted, the air supply quantity is increased by 10% -30%, and the air quantity adjustment interval is 1 hour; if T1 'and/or H1' are/is less than T1 and H1, the dehumidifying air supply quantity is adjusted, the air supply quantity is decreased by 10% -30%, and the air supply quantity adjustment interval is 1 hour;
determining that T1 'reaches the allowable setting range of T1 and the actual humidity H1' reaches the allowable setting range of H1, and entering SS4;
and the SS7 adjusts the running condition of the dehumidifier unit according to the dehumidifying air supply temperature, the air supply relative humidity and the air supply quantity, and adjusts the running condition to the set values T1 and H1.
Preferably, the feedback control of the ice making system includes the steps of:
SZ1 sets a target temperature T2 of the ice layer, and simultaneously sets an allowable deviation range of T2 and an allowable setting range of T2; the ice maker group regulates the water outlet temperature according to the ice surface temperature set value, and sets the allowable setting range of the water outlet temperature of the ice maker;
the SZ2 ice temperature sensor T2' is arranged in the ice layer, and the acquired and perceived temperature value is fed back to the SZ3;
SZ3 judges whether T2' is within the allowable error range of T2, if so, entering SZ5, otherwise, entering SZ4;
SZ4 increases the water supply temperature if T2 'is less than T2, and decreases the water supply temperature if T2' is less than T2;
the water supply temperature is regulated according to steps, the regulating quantity is 1/2 of the allowable deviation quantity from the equipment regulating precision value to T2 each time, the regulating interval is 20-30 minutes, and SZ6 is entered after each time of regulation;
SZ5 keeps the current parameters unadjusted;
SZ6 receives the temperature adjustment value, and the ice maker group adjusts the operation condition and the ice making system;
SZ7 automatically increases or decreases the target value T2 within the allowable setting range of T2 when the ice layer temperature T2 'is continuously maintained for T2' T2 or T2 < T2 for a set time.
Preferably, the feedback control of the air conditioning system includes the steps of:
ST1, setting a target value T3 of the temperature of the audience, and setting an allowable error range and an allowable setting range of T3;
the ST2 audience temperature sensor acquires an actual temperature value T3' in real time;
ST3 judges whether T3' is within the allowable error range of T3, if so, ST4 is entered, otherwise ST5 is entered;
ST4 keeps a temperature constant value T3, and the air conditioning system does not adjust operation parameters;
ST5, when T3 'is greater than T3, adjusting and increasing the air conditioner air quantity, when T3' is less than T3, adjusting and reducing the air conditioner air quantity, and feeding the calculated air quantity back to ST7; the air quantity is regulated in steps, and the time interval for regulating the air quantity each time is 20-60 minutes;
ST6 air conditioner self-control receives feedback temperature and air quantity set value, and air conditioner system air supply is carried out according to new parameters, so as to control audience temperature;
ST7 when the temperature T3 is continuously maintained at T3 'T3 or T3' T3 for a set time, the target value T3 is automatically adjusted up or down within the allowable set range of T3.
Compared with the prior art, the indoor on-ice stadium temperature and humidity combined control method has the following beneficial effects:
in the competition venues on ice, the requirement on the quality of the ice surface is high, and the air above the ice surface is the air directly contacted with the lower layer of the ice surface, so that the quality of the ice surface is decisively influenced, and the temperature of the ice layer is slightly influenced. The ice temperature is generally between-18 degrees celsius and-4 degrees celsius as long as it is within the set range. Therefore, the final purpose of the invention is to control the temperature and humidity of the air above the ice surface in an automatic control mode on the premise of not affecting the independent operation of the respective systems as much as possible and reducing the direct mutual influence energy consumption of the systems as much as possible.
The three subsystems in the venue which affect the air above the ice surface are respectively an air supply system which affects the air humidity in the venue and the air temperature in the whole venue, an air conditioning system at the position of the auditorium and an ice making system which affects the ice temperature and finally affects the air temperature above the ice surface. None of the three subsystems of the air supply system, the air conditioning system and the ice making system directly corresponds to and controls the temperature and humidity of air above the ice surface. But all three systems have an indirect effect on the warmth of the air above the ice surface. The most significant and direct impact of the air supply system.
The air supply system, the air conditioning system and the ice making system all reach target values set by the subsystems through independent feedback control mechanisms. However, when the three subsystems independently operate in the target value range, the temperature and humidity of the air above the ice surface are not necessarily guaranteed to reach an ideal state. Therefore, the control and adjustment are required to be carried out on the respective operation targets of the three subsystems, and on the premise of saving energy, the junction of the three subsystems, namely the lower air above the ice surface, can reach the set requirement.
Specifically, the air supply system, the air conditioning system and the ice making system initially set their own target values, and then each system approaches their own target values by feedback control.
Then, a temperature and humidity sensor is arranged above the ice surface, and an allowable range T of temperature and an allowable range H of humidity are set above the ice surface. When the actual values T 'and H' of the sensors do not meet the set requirement, the combined control system intervenes, the target temperature T1 or the target humidity H1 of the air supply system is adjusted first, and then the air supply system automatically approaches the new target temperature T1 or the new target humidity H1. Further, after the maximum allowable setting limit has been reached by the T1 of the air supply system, when the actual temperature T' of the air on the ice surface still does not reach the set allowable range T, the same air conditioning system and the ice making system will approach their new target values respectively when the target values T2 and T3 of the air conditioning system and the ice making system are adjusted. Here, T2 of the ice making system may be adjusted first and then T3 of the air conditioning system may be adjusted, or conversely, T3 of the air conditioning system may be adjusted first and then T2 of the ice making system may be adjusted, or T2 and T3 may be adjusted simultaneously in a set ratio. This may be determined based on the specific situation of the venue.
Drawings
FIG. 1 is a logic control diagram of an embodiment of a method for controlling the temperature and humidity of an indoor ice stadium in a combined manner.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
In the present invention, unless otherwise indicated, terms of orientation such as "up, down, left, right" are used to refer generally to up, down, left, right as shown with reference to fig. 1; "inner and outer" means inner and outer relative to the contour of the respective parts themselves. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to solve the problem of how to control the quality of ice in large-scale ice venues with independent air supply systems, air conditioning systems and ice making systems. The invention provides a method for controlling the temperature and humidity of an indoor ice stadium in a combined way, which is shown in figure 1.
According to the foregoing, the temperature and humidity conditions of the air above the ice surface, that is, the air below the ice surface, will have a decisive influence on the quality of the ice surface. The ice temperature of the ice layer itself is usually between-18 degrees celsius and-4 degrees celsius as long as the ice temperature is within a set range. Therefore, the final purpose of the invention is to control the temperature and humidity of the air above the ice surface in an automatic control mode on the premise of not affecting the independent operation of the respective systems as much as possible and reducing the direct mutual influence energy consumption of the systems as much as possible.
The indoor ice venue temperature and humidity combined control method comprises an air supply system for controlling air intake temperature and venue humidity in a venue through venue ventilation control, an ice making system for making ice and adjusting ice layer temperature and an air conditioning system for adjusting audience temperature; and a combined control system for coordinating the air supply system, the ice making system and the air conditioning system, wherein the combined control system finally influences the temperature and the humidity right above the ice surface;
initializing and setting an air temperature target value T1 and a humidity target value H1 in the venue, detecting the actual temperature T1 'and the actual humidity H1' of air in the venue by an air supply system, and controlling the air supply temperature and the air supply humidity to enable the humiture T1 'and the humiture H1' of the air in the venue to approach the target values T1 and H1 through a feedback regulation mechanism;
initializing a target value T2 of the ice layer temperature, detecting the actual temperature T2 'of the ice layer by the ice making system, and controlling the water outlet temperature to enable the ice layer temperature T2' to approach the target value T2 through a feedback regulation mechanism;
initializing and setting a target value T3 of the temperature of the audience, detecting the actual temperature T3 'of the position of the audience by the air conditioning system, and controlling the power of the air conditioning system to enable the temperature T3' of the audience to approach the target value T3 through a feedback regulation mechanism;
initializing and setting an air temperature allowable range T and a humidity allowable range H right above the ice layer, and detecting the actual temperature T 'and the actual humidity H' of the air above the ice layer by a combined control system; when T 'and H' exceed the allowable ranges T and H, the combined control system firstly adjusts the target values T1 and/or H1 of the air in the venue to enable the T 'and/or H' to return to the allowable ranges T and/or H; when T1 has reached the maximum allowable setting range and T 'has not returned to the allowable range, the combined control system adjusts the target value T2 of the ice layer temperature and the target value T3 of the audience temperature simultaneously or in any order, so that T' returns to the allowable range.
The air supply system is used for ventilating the stadium and adjusting the air supply temperature and humidity. For convenience of expression, the system that performs ventilation and air blowing while controlling the air blowing temperature and also performs humidity adjustment such as dehumidification and humidification will be referred to herein as an air blowing system. Wherein the humidity adjustment can be performed by a separate device, only under the control of the air supply system and the combined control system.
Here, the target value T1 and the humidity target value H1 of the air in the venue are actually target values of the air blowing system. The target value T2 of the ice layer temperature is a target value of the ice making system. The target value T3 of the temperature of the audience is the target value of the air conditioning system. Here, since the setting is an allowable error range, the target value is actually a small section, and is generally set in the form of t1±a, t2±b, t3±c, and h1±d. a. The specific values of b, c and d are selected according to actual conditions during initialization.
Specifically, the dew point value is set at the same time during initialization, and when the combined control system adjusts the target values T1 and H1 of the air in the venue, the dew point value is kept unchanged, and one of the adjusted T1 and H1 is calculated through the other one and the dew point value. For example, after H ' is greater than the set range of H, the combined control system reduces the humidity target value H1 of the air supply system, and then finally reduces the actual humidity H ' of the air above the ice surface, so that H ' returns to the set range of H. And when the combined control system changes H1, calculating to obtain a new T1 through the principle of inconvenient dew point, and sending the new T1 to the air supply system. And vice versa. When the temperature T' exceeds the allowable range of T, the same is true.
Combined control system triggered by air temperature and humidity sensor right above ice layer
When the temperature T' exceeds the allowable range of T, the control of the combined control system comprises the following processes:
1) When the temperature T ' is kept to be T ' T or T ' T within the set time, the combined control system resets the target temperature T1 for regulating and reducing or regulating and increasing the air in the venue, the dew point is kept constant, and the new H1 is calculated by the set T1 and the dew point value.
2) When T1 reaches the maximum allowable setting range and the temperature T 'T or T' T is continued in the setting time, resetting the setting value of the temperature T2 by the combined control system;
3) When T2 reaches the maximum allowable setting range and continues to be at the temperature T 'T or T' T within the setting time, the combined control system resets the temperature setting value of the temperature T3 for adjustment and subtraction or adjustment and multiplication.
The setting time is also a manual setting value for initialization, and can be selected according to the specific situation. The allowable setting ranges of T1, T2, and T3 are also given for initialization. For example, if the ice-making system needs to keep the ice temperature within a reasonable range, the target value T2 of the ice-making system cannot be infinitely adjusted, and there is a maximum allowable range that can be set.
Wherein the setting sequence of the joint control system resetting the adjustments T2 and T3 can be exchanged. T3 will also have a maximum allowable setting after the swap.
When the temperature H' exceeds the allowable range of H, the control of the combined control system comprises the following processes: when the humidity H ' is continuously kept at H ' H or H ' H within the set time, the combined control system resets the target humidity H1 for regulating and reducing or regulating and increasing the air in the venue, the dew point is kept constant, and a new T1 is calculated by the set H1 and the dew point value.
Air supply system, ice making system and air conditioning system triggering combined control system
The above mentioned one triggering mode of the combined control system is that the combined control system is triggered to regulate when the regulation target of the invention, namely, the temperature T 'and the humidity H' of the air right above the ice layer exceed the allowable range T and the allowable range H of the humidity. On the other hand, when any system cannot always reach the set target value, the combined control system can intervene to correct the target value. Including the following cases
1) When the air supply system reaches the maximum or minimum working capacity and the actual temperature T1 'and/or H1' of the air in the venue still cannot fall within the allowable deviation range of T1 and/or H1 after the system runs for a set time, triggering the joint control system to increase or decrease the target value of T1 and/or H1; the dew point value is kept unchanged when the combined control system adjusts, and one of the adjusted T1 and H1 is calculated through the other one and the dew point value;
2) When the ice making system has reached the maximum or minimum working capacity and the actual temperature T2' of the ice layer still cannot fall within the allowable deviation range of T2 after the system runs for a set time, triggering the combined control system to adjust or reduce the target value of T2;
3) When the air conditioning system has reached the maximum or minimum working capacity and after the system is operated for a set time, the actual temperature T3' of the auditorium still cannot fall within the allowable deviation range of T3, the combined control system is triggered to adjust or reduce the target value of T2.
Specific control steps of air supply system, ice making system and air conditioning system
The feedback control of the air supply system comprises the following steps:
the SS1 sensor detects the actual temperature T1 'and the actual humidity H1' of the air in the venue, and sets an allowable setting range and an allowable deviation range of T1 and H1; where t1=x 1 ±y 1 ，H1= m 1 ±n 1 Wherein x is 1 And m 1 The section that can be set is the allowable setting range, x 1 And m 1 The value range can be determined according to the actual situation, y 1 And n 1 That is, the allowable deviation range, y 1 The value range of (2) is 0.3-1 ℃.
The SS2 judges whether the actual temperature T1 'is within the allowable deviation range of T1, whether the actual humidity H1' is within the allowable deviation range of H1 or not, if not, the SS3 is entered, and if yes, the existing working state is maintained unchanged;
the SS3 judges whether the actual temperature T1 'is within the allowable setting range of T1 and the actual humidity H1' is within the allowable setting range of H1, if so, the SS4 is entered, and if not, the SS6 is entered;
SS4 dehumidifies and supplies air temperature regulation, decreasing according to Z ℃ when the temperature is regulated, the Z range is 0.5-2 ℃, the regulation interval is 1-2 hours, increasing according to Z ℃ when the temperature is regulated, and the regulation interval is 30-60 minutes; entering SS5 after temperature regulation begins;
the SS5 calculates a new humidity target value H1 according to the new temperature target value T1 and the dew point value regulated by the SS4, resets the humidity target value H1 in a corresponding one-time regulation in place mode, and then enters the SS7;
SS6, if T1 'and/or H1' are/is greater than T1 and H1, the dehumidifying air supply quantity is adjusted, the air supply quantity is increased by 10% -30%, and the air quantity adjustment interval is 1 hour; if T1 'and/or H1' are/is less than T1 and H1, the dehumidifying air supply quantity is adjusted, the air supply quantity is decreased by 10% -30%, and the air supply quantity adjustment interval is 1 hour;
determining that T1 'reaches the allowable setting range of T1 and the actual humidity H1' reaches the allowable setting range of H1, and entering SS4;
and the SS7 adjusts the running condition of the dehumidifier unit according to the dehumidifying air supply temperature, the air supply relative humidity and the air supply quantity, and adjusts the running condition to the set values T1 and H1.
The feedback control of the ice making system includes the steps of:
SZ1 sets a target temperature T2 of the ice layer, and simultaneously sets an allowable deviation range of T2 and an allowable setting range of T2; the ice maker group regulates the water outlet temperature according to the ice surface temperature set value, and sets the allowable setting range of the water outlet temperature of the ice maker; where t2=x 2 ±y 2 Wherein x is 2 The direction which can be set is the allowed setting range, x 2 The value range can be determined according to the actual situation, y 2 That is, the allowable deviation range, y 2 The value range of (2) is 0.3-1 ℃.
The SZ2 ice temperature sensor T2' is arranged in the ice layer, and the acquired and perceived temperature value is fed back to the SZ3;
SZ3 judges whether T2' is within the allowable error range of T2, if so, entering SZ5, otherwise, entering SZ4;
SZ4 increases the water supply temperature if T2 'is less than T2, and decreases the water supply temperature if T2' is less than T2;
the water supply temperature is regulated according to steps, the regulating quantity is 1/2 of the allowable deviation quantity from the equipment regulating precision value to T2 each time, the regulating interval is 20-30 minutes, and SZ6 is entered after each time of regulation;
SZ5 keeps the current parameters unadjusted;
SZ6 receives the temperature adjustment value, and the ice maker group adjusts the operation condition and the ice making system;
SZ7 automatically increases or decreases the target value T2 within the allowable setting range of T2 when the ice layer temperature T2 'is continuously maintained for T2' T2 or T2 < T2 for a set time.
The feedback control of the air conditioning system includes the steps of:
ST1, setting a target value T3 of the temperature of the audience, and setting an allowable error range and an allowable setting range of T3; where t3=x 3 ±y 3 Wherein x is 3 Orientation capable of being setIs the allowed setting range, x 3 The value range can be determined according to the actual situation, y 3 That is, the allowable deviation range, y 3 The value range of (2) is 0.3-1 ℃.
The ST2 audience temperature sensor acquires an actual temperature value T3' in real time;
ST3 judges whether T3' is within the allowable error range of T3, if so, ST4 is entered, otherwise ST5 is entered;
ST4 keeps a temperature constant value T3, and the air conditioning system does not adjust operation parameters;
ST5, when T3 'is greater than T3, adjusting and increasing the air conditioner air quantity, when T3' is less than T3, adjusting and reducing the air conditioner air quantity, and feeding the calculated air quantity back to ST7; the air quantity is regulated in steps, and the time interval for regulating the air quantity each time is 20-60 minutes;
ST6 air conditioner self-control receives feedback temperature and air quantity set value, and air conditioner system air supply is carried out according to new parameters, so as to control audience temperature;
ST7 when the temperature T3 is continuously maintained at T3 'T3 or T3' T3 for a set time, the target value T3 is automatically adjusted up or down within the allowable set range of T3.
SZ7 and ST7 may be considered as a control procedure of the joint control system, and are herein collectively placed in the control procedure of the respective subsystems for convenience of expression.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the design of the present invention.
Claims (8)
1. The combined control method for the humiture of the indoor ice stadium is characterized in that an air supply system, an ice making system and an air conditioning system are coordinated through a combined control system, and finally the temperature and the humidity right above the ice surface are influenced; the method comprises the following steps:
initializing and setting an air temperature target value T1 and a humidity target value H1 in the venue, detecting the actual temperature T1 'and the actual humidity H1' of air in the venue by an air supply system, and controlling the air supply temperature and the air supply humidity to enable the humiture T1 'and the humiture H1' of the air in the venue to approach the target values T1 and H1 through a feedback regulation mechanism;
initializing a target value T2 of the ice layer temperature, detecting the actual temperature T2 'of the ice layer by the ice making system, and controlling the water outlet temperature to enable the ice layer temperature T2' to approach the target value T2 through a feedback regulation mechanism;
initializing and setting a target value T3 of the temperature of the audience, detecting the actual temperature T3 'of the position of the audience by the air conditioning system, and controlling the power of the air conditioning system to enable the temperature T3' of the audience to approach the target value T3 through a feedback regulation mechanism;
initializing and setting an air temperature allowable range T and a humidity allowable range H right above the ice layer, and detecting the actual temperature T 'and the actual humidity H' of the air above the ice layer by a combined control system; when T 'and H' exceed the allowable ranges T and H, the combined control system firstly adjusts the target values T1 and/or H1 of the air in the venue to enable the T 'and/or H' to return to the allowable ranges T and/or H; when T1 has reached the maximum allowable setting range and T 'has not returned to the allowable range, the combined control system adjusts the target value T2 of the ice layer temperature and the target value T3 of the audience temperature simultaneously or in any order, so that T' returns to the allowable range.
2. The method for controlling the temperature and humidity of a venue on ice in a room according to claim 1, wherein the dew point value is set at the same time during initialization, and the dew point value is kept unchanged when the unified control system adjusts target values T1 and H1 of air in the venue, and one of the adjusted T1 and H1 is calculated by the other dew point value.
3. The method for controlling the temperature and humidity of the indoor ice stadium according to claim 1, wherein when the temperature T ' is continuously kept at T ' T or T ' T < T in a set time, the combined control system resets the target temperature T1 for adjusting down or increasing the air in the stadium and keeps the dew point constant, and a new H1 is calculated from the set T1 and the dew point value;
when T1 reaches the maximum allowable setting range and the temperature T 'T or T' T is continued in the setting time, resetting the setting value of the temperature T2 by the combined control system;
when T2 reaches the maximum allowable setting range and the temperature T 'T or T' T is continued in the setting time, resetting the setting value of the temperature T3 by the combined control system;
wherein the setting sequence of the joint control system resetting the adjustments T2 and T3 can be exchanged.
4. The method according to claim 1, wherein when the humidity H ' is continuously maintained at H ' H or H ' H for a set period of time, the combined control system resets the target humidity H1 for decreasing or increasing the air in the venue and maintains the dew point constant, and the new T1 is calculated from the set H1 and the dew point value.
5. The method for controlling the temperature and humidity of the indoor ice stadium according to claim 1, wherein,
when the air supply system reaches the maximum or minimum working capacity and the actual temperature T1 'and/or H1' of the air in the venue still cannot fall within the allowable deviation range of T1 and/or H1 after the system runs for a set time, triggering the joint control system to increase or decrease the target value of T1 and/or H1; the dew point value is kept unchanged when the combined control system adjusts, and one of the adjusted T1 and H1 is calculated through the other one and the dew point value;
when the ice making system has reached the maximum or minimum working capacity and the actual temperature T2' of the ice layer still cannot fall within the allowable deviation range of T2 after the system runs for a set time, triggering the combined control system to adjust or reduce the target value of T2;
when the air conditioning system has reached the maximum or minimum working capacity and after the system is operated for a set time, the actual temperature T3' of the auditorium still cannot fall within the allowable deviation range of T3, the combined control system is triggered to adjust or reduce the target value of T2.
6. The method for controlling the temperature and humidity of an indoor ice stadium according to claim 1, wherein the feedback control of the air supply system comprises the following steps:
SS1, a sensor detects the actual temperature T1 'and the actual humidity H1' of air in a venue, and sets an allowable setting range and an allowable deviation range of T1 and H1;
SS2, judging whether the actual temperature T1 'is within the allowable deviation range of T1, and whether the actual humidity H1' is within the allowable deviation range of H1, if not, entering SS3; if yes, maintaining the existing working state unchanged;
SS3, judging whether the actual temperature T1 'is within the allowable setting range of T1, and whether the actual humidity H1' is within the allowable setting range of H1, if yes, entering SS4, if no, entering SS6;
SS4, dehumidifying and air supply temperature is regulated, the temperature is reduced according to the temperature Z, the range Z is 0.5-2 ℃, the regulating interval is 1-2 hours, the temperature is increased according to the temperature Z, the regulating interval is 30-60 minutes; entering SS5 after temperature regulation begins;
SS5, calculating a new humidity target value H1 according to the new temperature target value T1 and the dew point value adjusted by SS4, resetting the humidity target value H1 in a corresponding one-time adjustment in place mode, and then entering SS7;
SS6, if T1 'is greater than T1 and/or H1' is greater than H1, regulating the dehumidifying air supply quantity, wherein the air supply quantity is increased by 10% -30%, and the air quantity regulation interval is 1 hour; if T1 'is less than T1 and/or H1' is less than H1, the dehumidifying air supply quantity is regulated, the air supply quantity is decreased by 10% -30%, and the air quantity regulation interval is 1 hour;
determining that T1 'reaches the allowable setting range of T1 and the actual humidity H1' reaches the allowable setting range of H1, and entering SS4;
and SS7, adjusting the running condition of the dehumidifier unit according to the dehumidifying air supply temperature, the air supply relative humidity and the air supply quantity, and adjusting the running condition to the set values T1 and H1.
7. The method for controlling the temperature and humidity of an indoor ice stadium according to claim 1, wherein the feedback control of the ice making system comprises the steps of:
SZ1, setting a target temperature T2 of the ice layer, and simultaneously setting an allowable deviation range of T2 and an allowable setting range of T2; the ice maker group regulates the water outlet temperature according to the ice surface temperature set value, and sets the allowable setting range of the water outlet temperature of the ice maker;
SZ2, an ice temperature sensor T2' is arranged in the ice layer, and the acquired and perceived temperature value is fed back to SZ3;
SZ3, determining whether T2' is within the allowable error range of T2, if yes, entering SZ5, and if no, entering SZ4;
SZ4, if T2 'is less than T2, the water supply temperature is regulated and if T2' is more than T2, the water supply temperature is regulated down;
the water supply temperature is regulated according to steps, the regulating quantity is 1/2 of the allowable deviation quantity from the equipment regulating precision value to T2 each time, the regulating interval is 20-30 minutes, and SZ6 is entered after each time of regulation;
SZ5, keeping the current parameters unadjusted;
SZ6, receiving the temperature adjustment value, and adjusting the running condition of the ice making unit to adjust the ice making system;
SZ7, when the ice layer temperature T2 ' is continuously maintained for T2 ' T2 or T2 ' T2 for a set time, automatically increases or decreases the target value T2 within the allowable set range of T2.
8. The method for controlling the temperature and humidity of an indoor ice stadium according to claim 1, wherein the feedback control of the air conditioning system comprises the steps of:
ST1, setting a target value T3 of the temperature of the audience, and setting an allowable error range and an allowable setting range of T3;
ST2, an audience temperature sensor acquires an actual temperature value T3' in real time;
ST3, judging whether T3' is within the allowable error range of T3, if yes, proceeding to ST4, if no, proceeding to ST5;
ST4, maintaining a temperature constant value T3, and enabling the air conditioning system not to adjust operation parameters;
ST5, when T3 'is greater than T3, adjusting and increasing the air conditioner air quantity, when T3' is less than T3, adjusting and reducing the air conditioner air quantity, and feeding back the calculated air quantity to ST7; the air quantity is regulated in steps, and the time interval for regulating the air quantity each time is 20-60 minutes;
ST6, the air conditioner automatically receives the feedback temperature and the air quantity set value, and air is supplied to the air conditioning system according to the new parameters, so as to control the audience temperature;
ST7, when the temperature T3 is continuously maintained at T3 'T3 or T3' T3 for a set time, the target value T3 is automatically adjusted up or down within the allowable set range of T3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210484994.3A CN114877435B (en) | 2022-05-06 | 2022-05-06 | Indoor ice stadium humiture combined control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210484994.3A CN114877435B (en) | 2022-05-06 | 2022-05-06 | Indoor ice stadium humiture combined control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114877435A CN114877435A (en) | 2022-08-09 |
| CN114877435B true CN114877435B (en) | 2024-04-05 |
Family
ID=82673680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210484994.3A Active CN114877435B (en) | 2022-05-06 | 2022-05-06 | Indoor ice stadium humiture combined control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114877435B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0376952A (en) * | 1989-08-18 | 1991-04-02 | Kitano Kensetsu Kk | Condensation prevention of ice arena and device thereof |
| US5423184A (en) * | 1991-05-28 | 1995-06-13 | Eggemar; Bengt V. | Method and an arrangement for measuring and adjusting the ice temperature of artificial ice rinks |
| JP2003322366A (en) * | 2002-05-02 | 2003-11-14 | Sogo Setsubi Keikaku:Kk | Ice-making air-conditioning system |
| CA2599769A1 (en) * | 2007-08-30 | 2009-02-28 | Mayekawa Mfg. Co., Ltd. | System and method for creating rink ice and utilizing high-temperature heat generated when creating rink ice |
| CN106885354A (en) * | 2017-04-20 | 2017-06-23 | 清华大学 | A kind of curling stone venue thermal and humidity environment control system and method |
| CN111157041A (en) * | 2019-12-26 | 2020-05-15 | 北京国家游泳中心有限责任公司 | Ice rink ambient temperature monitoring control system |
| CN112612316A (en) * | 2020-12-18 | 2021-04-06 | 北京首钢自动化信息技术有限公司 | Heating and ventilation equipment control method and device |
| CN215405840U (en) * | 2021-12-02 | 2022-01-04 | 北京北控京奥建设有限公司 | Ice rink ice layer temperature control and ice surface finishing system |
| CN215832084U (en) * | 2021-09-18 | 2022-02-15 | 北京泛华新兴体育产业股份有限公司 | Ice rink temperature control system |
-
2022
- 2022-05-06 CN CN202210484994.3A patent/CN114877435B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0376952A (en) * | 1989-08-18 | 1991-04-02 | Kitano Kensetsu Kk | Condensation prevention of ice arena and device thereof |
| US5423184A (en) * | 1991-05-28 | 1995-06-13 | Eggemar; Bengt V. | Method and an arrangement for measuring and adjusting the ice temperature of artificial ice rinks |
| JP2003322366A (en) * | 2002-05-02 | 2003-11-14 | Sogo Setsubi Keikaku:Kk | Ice-making air-conditioning system |
| CA2599769A1 (en) * | 2007-08-30 | 2009-02-28 | Mayekawa Mfg. Co., Ltd. | System and method for creating rink ice and utilizing high-temperature heat generated when creating rink ice |
| CN106885354A (en) * | 2017-04-20 | 2017-06-23 | 清华大学 | A kind of curling stone venue thermal and humidity environment control system and method |
| CN111157041A (en) * | 2019-12-26 | 2020-05-15 | 北京国家游泳中心有限责任公司 | Ice rink ambient temperature monitoring control system |
| CN112612316A (en) * | 2020-12-18 | 2021-04-06 | 北京首钢自动化信息技术有限公司 | Heating and ventilation equipment control method and device |
| CN215832084U (en) * | 2021-09-18 | 2022-02-15 | 北京泛华新兴体育产业股份有限公司 | Ice rink temperature control system |
| CN215405840U (en) * | 2021-12-02 | 2022-01-04 | 北京北控京奥建设有限公司 | Ice rink ice layer temperature control and ice surface finishing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114877435A (en) | 2022-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108489027B (en) | Control method for convection and radiation adaptive supply heating and ventilation system | |
| US9964316B2 (en) | Weather forecast and prediction based temperature control | |
| CN101545660B (en) | Indoor temperature and humidity independent control system | |
| CN107166647B (en) | Multi-split control method and system | |
| US9261288B2 (en) | Air conditioning system for adjusting temperature and humidity | |
| US7266960B2 (en) | Single integrated humidity and ventilation control in an HVAC system | |
| CN108361926B (en) | Air conditioner control method based on temperature and cold feeling and air conditioner | |
| EP2587176A2 (en) | Air-side free cooling system and data center | |
| CN109855265B (en) | Low-energy-consumption multi-region refined variable air volume air conditioning system and control method thereof | |
| WO2016200855A1 (en) | Hvac system start/stop control | |
| CN106871351B (en) | A kind of frequency conversion air blowing control method of air-conditioning system | |
| CN106196471B (en) | Air conditioner humidity control method and air conditioner | |
| US11603999B2 (en) | HVAC system with volume modulating valve | |
| CN113483446B (en) | Multi-connected air conditioner refrigeration operation method | |
| US20030085033A1 (en) | Double duct changeover HVAC system | |
| CN109612047A (en) | The supply air temperature control method of air conditioning system with variable | |
| CN103471205A (en) | Method for regulating indoor temperature and dual-temperature control valve | |
| CN114877435B (en) | Indoor ice stadium humiture combined control method | |
| JP2011075194A (en) | Control device and control method | |
| CN106440154B (en) | Air conditioning system control method with humidifying function and air conditioning system | |
| CN112665102A (en) | Fan coil control method based on cold quantity calculation | |
| CN109708275B (en) | Intelligent indoor temperature regulation and control system for large-span sports building | |
| EP4163557A1 (en) | System for heating and cooling rooms | |
| CN112944635A (en) | Air conditioner control method and device | |
| JP7350504B2 (en) | air conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |