CN110779109A - Air conditioning system with fan waste heat recovery function and control method thereof - Google Patents
Air conditioning system with fan waste heat recovery function and control method thereof Download PDFInfo
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- CN110779109A CN110779109A CN201910972232.6A CN201910972232A CN110779109A CN 110779109 A CN110779109 A CN 110779109A CN 201910972232 A CN201910972232 A CN 201910972232A CN 110779109 A CN110779109 A CN 110779109A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 37
- 238000011084 recovery Methods 0.000 title claims abstract description 20
- 239000002918 waste heat Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims description 21
- 230000001276 controlling effect Effects 0.000 claims description 12
- 239000003507 refrigerant Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 238000007791 dehumidification Methods 0.000 abstract description 7
- 230000004044 response Effects 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—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
- F24F11/77—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 by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The utility model provides a take fan waste heat recovery's air conditioning system, its includes first order heat exchanger (2), first manger (3), air-blower (5), air cleaner (7), second level heat exchanger (9), second manger (11), controller, its characterized in that: the air conditioner air inlet temperature sensor is arranged on the upstream of the first-stage heat exchanger, and the fan inlet temperature sensor is arranged between the air blower and the first water retainer on the upstream of the air blower. The dehumidification air-conditioning system has the advantages of high control precision, sensitive dynamic response and energy conservation, and is an efficient energy-saving dehumidification air-conditioning system with accurately controllable temperature.
Description
Technical Field
The invention relates to the field of air conditioning systems, in particular to an air conditioning system with a fan for waste heat recovery and a control method thereof, and the air conditioning system is a high-efficiency energy-saving dehumidification air conditioning system with accurate and controllable temperature.
Background
The existing air blower air conditioning system has the advantages that the air blower is positioned at the air inlet of the air conditioner, the heat load of the air blower needs to be additionally processed, the heating mode adopts an electric heating or steam heating mode, the control method is simple, the accuracy is low, the energy loss is large, the structure is complex, and the energy is not saved.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an air conditioning system with a fan for recovering waste heat and a control method thereof.
The energy recovery technology comprises the following steps: the total heat recovery technology is adopted to recover the heat generated by the blower, and the auxiliary heat of the air supply of the air conditioner can be reduced. The structure is simpler, and considerable operating cost is saved for users.
PID temperature control technology: the air conditioner can operate in the environment with the air inlet temperature of 10-35 ℃ and the relative humidity of less than 98%. And by adopting a PID control technology, the air supply temperature is accurately and continuously adjustable between 14 ℃ and 55 ℃.
The new control method comprises the following steps: the control precision is high, the dynamic response is sensitive, and more energy is saved.
The air conditioning system with the fan for waste heat recovery and the control method thereof mainly comprise a primary heat exchanger, a water retaining device, a blower, a secondary heat exchanger, an air filter, an electric three-way flow regulating valve, a temperature sensor and a controller/electric automatic control system. The air is cooled and dehumidified by the primary cooling coil, pressurized, heated and filtered by the air blower, and then is subjected to temperature treatment by the secondary cooling coil to meet the use requirements. The invention aims to provide an air conditioning system with a fan for waste heat recovery and a control method thereof, and particularly relates to an efficient energy-saving dehumidification air conditioning system with accurate and controllable temperature.
The primary heat exchanger is used for cooling and dehumidifying the inlet air and removing redundant water in the air; the water eliminator is used for stopping condensed water separated out through the primary heat exchanger; the air blower converts electric energy into heat energy and kinetic energy, the temperature of air can be raised to about 80 ℃, the pressure can reach 40 kPa-60 kPa, and the transmission distance can reach more than 300 m. The secondary heat exchanger is used for carrying out temperature treatment on the air outlet of the air blower to enable the air temperature to meet the use requirement; the air filter is used for filtering dust and solid impurities in air and meets the requirement of use cleanliness; the electric three-way flow regulating valve is used for regulating the flow of refrigerant water so as to achieve the purpose of regulating the heat exchange quantity; and the temperature sensor is used for detecting the temperature of each point of the air conditioning system and transmitting the parameters to the controller.
The air conditioning system unit can realize various functional requirements such as cooling, heating, dehumidification, purification, energy recovery and ventilation, and meets the air requirements of users on various different varieties such as indoor temperature, airflow, cleanliness and freshness.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a take fan waste heat recovery's air conditioning system, its includes first order heat exchanger (2), first manger (3), air-blower (5), air cleaner (7), second level heat exchanger (9), second manger (11), controller, its characterized in that: the air conditioner comprises a first-stage heat exchanger, a first water retainer, an air blower, an air filter, a second-stage heat exchanger and a second water retainer, wherein the first-stage heat exchanger, the first water retainer, the air blower, the air filter, the second-stage heat exchanger and the second water retainer are sequentially arranged along the flow direction of air flow, an air inlet temperature sensor (1) of an air conditioner is arranged on the upstream of the first-stage heat exchanger, and a fan inlet temperature sensor (4) is.
Further, a fan outlet temperature sensor (6) is arranged at the downstream of the air blower and between the air blower and the air filter, and an air conditioner outlet air temperature sensor (12) is arranged at the downstream of the second water baffle.
Furthermore, the first-stage heat exchanger and the second-stage heat exchanger are connected with a refrigerant agent outlet and a refrigerant agent inlet through pipelines, the first-stage heat exchanger is connected with the first three-way regulating valve (8) through a pipeline, and the second-stage heat exchanger is connected with the second three-way regulating valve (10) through a pipeline.
The control method of the air conditioning system with the fan waste heat recovery is characterized in that when the temperature of an inlet of the fan is = a first preset temperature, the opening of a first three-way valve is in a first preset opening, the power of a blower is in a first preset power, and the angle of a first water baffle is in a first preset angle; when the inlet temperature of the fan is less than the first preset temperature, the opening degree of the first three-way valve is adjusted to (105-; when the temperature of the inlet of the fan is higher than the first preset temperature, the opening of the first three-way valve is adjusted to 85-95% of the first preset opening, the power of the air blower is at the first preset power, and the angle of the first water baffle deflects by 5-10 degrees.
Further, when the temperature of the outlet of the air conditioner is = a second preset temperature, the opening of the second three-way valve is at a second preset opening, the power of the air blower is at a first preset power, and the angle of the second water baffle is at a second preset angle; when the temperature of the air conditioner outlet is less than a second preset temperature, the opening of the second three-way valve is adjusted to (110-; when the temperature of the outlet of the air conditioner is higher than the second preset temperature, the opening degree of the second three-way valve is adjusted to 80-90% of the second preset opening degree, the power of the air blower is at the first preset power, and the angle of the second water baffle deflects by 10-20 degrees.
And further, comparing and analyzing the difference value between the difference value of the fan inlet temperature value and the preset temperature value and the difference value of the air conditioner outlet temperature value and the preset temperature value, so as to select the corresponding control method of the three-way regulating valve, the air blower and the water eliminator.
Furthermore, the first-stage heat exchanger is used for cooling and dehumidifying the inlet air, and the first water eliminator is used for blocking condensed water separated out through the first-stage heat exchanger; the air blower converts electric energy into heat energy and kinetic energy, the second-stage heat exchanger is used for carrying out temperature treatment on air outlet of the air blower, the air filter is used for filtering dust and impurities in air, the three-way regulating valve is used for regulating refrigerant agent flow, the temperature sensor is used for detecting temperature of each point of the air conditioning system and transmitting parameters to the controller, the controller regulates the rotating speed of the air blower by controlling the power of the air blower and controls gas flow by controlling the deflection angle of the water retainer.
According to the air conditioning system with the fan for waste heat recovery and the control method thereof, the angles of the air blower, the three-way regulating valve and the water eliminator are set and adjusted, so that the control precision is high, the dynamic response is sensitive, the energy is saved, and the air conditioning system is a high-efficiency energy-saving dehumidification air conditioning system with the accurate and controllable temperature.
Drawings
FIG. 1 is a schematic view of an air conditioning system according to the present invention;
FIG. 2 is a schematic diagram of an air conditioning system control method according to the present invention.
In the figure: the air conditioner air inlet temperature sensor comprises an air conditioner air inlet temperature sensor 1, a first-stage heat exchanger 2, a first water retaining device 3, a fan inlet temperature sensor 4, an air blower 5, a fan outlet temperature sensor 6, an air filter 7, a first three-way adjusting valve 8, a second-stage heat exchanger 9, a second three-way adjusting valve 10, a second water retaining device 11 and an air conditioner air outlet temperature sensor 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-2, an air conditioning system with fan waste heat recovery comprises a first-stage heat exchanger 2, a first water eliminator 3, an air blower 5, an air filter 7, a second-stage heat exchanger 9, a second water eliminator 11 and a controller, wherein the first-stage heat exchanger 2, the first water eliminator 3, the air blower 5, the air filter 7, the second-stage heat exchanger 9 and the second water eliminator 11 are sequentially arranged along the air flow direction. An air conditioner inlet air temperature sensor 1 is arranged at the upstream/front side of the first-stage heat exchanger 2, a fan inlet temperature sensor 4 is arranged at the upstream/front side of the air blower 5 and between the air blower 5 and the first water retainer 3, a fan outlet temperature sensor 6 is arranged at the downstream/rear side of the air blower 5 and between the air blower 5 and the air filter 7, and an air conditioner outlet air temperature sensor 12 is arranged at the downstream/rear side of the second water retainer 11; the first-stage heat exchanger 2 and the second-stage heat exchanger 9 are connected with a refrigerant agent outlet and a refrigerant agent inlet through pipelines, the first-stage heat exchanger 2 is connected with the first three-way regulating valve 8 through a pipeline, and the second-stage heat exchanger 9 is connected with the second three-way regulating valve 10 through a pipeline.
The air conditioner air inlet temperature sensor 1 is used for detecting air inlet temperature, and air is used for cooling and dehumidifying through the first-stage heat exchanger 2, so that the moisture content of the air meets the air supply requirement; the first water retainer 3) is used for blocking condensed water separated out through the first-stage heat exchanger, the fan inlet temperature sensor 4 is used for detecting the temperature at the fan inlet, air is pressurized and heated through the air blower 5, the moisture content is not changed, and the air state is an equal-humidity enthalpy-increasing heating process; fan outlet temperature sensor 6 is arranged in detecting fan outlet temperature, and air cleaner 7 is arranged in dust and the solid impurity among the filtered air, and second grade heat exchanger 9 is arranged in carrying out temperature treatment to the air-blower air-out, makes air temperature satisfy operation requirement, and second water catch 11 is used for blockking the comdenstion water that appears through second grade heat exchanger, and outlet temperature sensor 12 is used for detecting fan outlet temperature.
The air conditioning system compares the real-time monitored temperature value of the fan inlet with a preset temperature value of the fan inlet, automatically adjusts the opening of the first electric three-way adjusting valve 8, adjusts the flow of refrigerant water, the power of the air blower 5 and the deflection angle of the first water eliminator 3, and gradually stabilizes the outlet air temperature at about a set temperature.
The air conditioning system compares the air conditioner air-out temperature value monitored in real time with a preset air conditioner air-out temperature value, automatically adjusts the opening of the second electric three-way adjusting valve 10, adjusts the flow of refrigerant water, the power of the air blower 5 and the deflection angle of the second water stopper 11, and gradually stabilizes the air-out temperature at about a set temperature.
The difference between the inlet temperature value of the fan and the preset temperature value and the difference between the outlet temperature value of the air conditioner and the preset temperature value are compared and analyzed, so that the corresponding adjusting/controlling method of the three-way adjusting valve, the air blower and the water eliminator is selected. If the difference value of the inlet temperature value of the fan is smaller than the preset temperature value, and the difference value of the outlet temperature value of the air conditioner is larger than the preset temperature value, a control mode of controlling the second three-way regulating valve 10, the air blower and the second water retainer 11 can be adopted, and unnecessary waste of electric energy is avoided.
The opening degree of the electric three-way flow regulating valve is controlled by the controller/automatic control system to realize the function of controlling the flow of the refrigerant water, and the aim of controlling the temperature is further fulfilled by controlling the heat exchange quantity; the rotating speed of the fan is adjusted by controlling the power of the blower, and the gas flow is controlled by controlling the deflection angle of the water eliminator.
As shown in fig. 2, in a control method of an air conditioning system with a fan for waste heat recovery, when a fan inlet temperature = a first preset temperature, an opening of a first three-way valve is at a first preset opening, a power of a blower is at a first preset power, and an angle of a first water baffle is at a first preset angle; when the inlet temperature of the fan is less than the first preset temperature, the opening degree of the first three-way valve is adjusted to (105-; when the temperature of the inlet of the fan is higher than the first preset temperature, the opening of the first three-way valve is adjusted to 85-95% of the first preset opening, the power of the air blower is at the first preset power, and the angle of the first water baffle deflects by 5-10 degrees.
When the air conditioner outlet temperature = a second preset temperature, the opening of the second three-way valve is at a second preset opening, the power of the air blower is at a first preset power, and the angle of the second water baffle is at a second preset angle; when the temperature of the air conditioner outlet is less than the second preset temperature, the opening degree of the second three-way valve is adjusted to (110-; when the temperature of the outlet of the air conditioner is higher than the second preset temperature, the opening degree of the second three-way valve is adjusted to 80-90% of the second preset opening degree, the power of the air blower is at the first preset power, and the angle of the second water baffle deflects by 10-20 degrees.
The control method of the air conditioning system with the fan waste heat recovery function is high in control precision, sensitive in dynamic response and energy-saving.
The controller/electric control system is electrically connected with each electric element/electronic element/action element and is used for automatically controlling the action/response of the electric element/electronic element/action element; for example, the controller is respectively electrically connected with the temperature sensor, the water eliminator, the three-way regulating valve and the like.
According to the air conditioning system with the fan for waste heat recovery and the control method thereof, the angles of the air blower, the three-way regulating valve and the water eliminator are set and adjusted, so that the control precision is high, the dynamic response is sensitive, the energy is saved, and the air conditioning system is a high-efficiency energy-saving dehumidification air conditioning system with the accurate and controllable temperature.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (7)
1. The utility model provides a take fan waste heat recovery's air conditioning system, its includes first order heat exchanger (2), first manger (3), air-blower (5), air cleaner (7), second level heat exchanger (9), second manger (11), controller, its characterized in that: the air conditioner comprises a first-stage heat exchanger, a first water retainer, an air blower, an air filter, a second-stage heat exchanger and a second water retainer, wherein the first-stage heat exchanger, the first water retainer, the air blower, the air filter, the second-stage heat exchanger and the second water retainer are sequentially arranged along the flow direction of air flow, an air inlet temperature sensor (1) of an air conditioner is arranged on the upstream of the first-stage heat exchanger, and a fan inlet temperature sensor (4) is.
2. Air conditioning system with fan waste heat recovery according to claim 1, characterized in that a fan outlet temperature sensor (6) is arranged downstream of the blower and between the blower and the air filter, and an air conditioner outlet temperature sensor (12) is arranged downstream of the second water trap.
3. The air conditioning system with the fan for waste heat recovery as set forth in claim 2, wherein the first stage heat exchanger and the second stage heat exchanger are connected with the refrigerant outlet and the refrigerant inlet through pipelines, the first stage heat exchanger is connected with the first three-way regulating valve (8) through a pipeline, and the second stage heat exchanger is connected with the second three-way regulating valve (10) through a pipeline.
4. The control method of the air conditioning system with the fan waste heat recovery function according to any one of claims 1 to 3, wherein when the fan inlet temperature = a first preset temperature, the opening degree of the first three-way valve is at a first preset opening degree, the power of the blower is at a first preset power, and the angle of the first water baffle is at a first preset angle; when the inlet temperature of the fan is less than the first preset temperature, the opening degree of the first three-way valve is adjusted to (105-; when the temperature of the inlet of the fan is higher than the first preset temperature, the opening of the first three-way valve is adjusted to 85-95% of the first preset opening, the power of the air blower is at the first preset power, and the angle of the first water baffle deflects by 5-10 degrees.
5. The control method according to claim 4, wherein when the air conditioner outlet temperature = a second preset temperature, the second three-way valve opening degree is at a second preset opening degree, the blower power is at a first preset power, and the second shutter angle is at a second preset angle; when the temperature of the air conditioner outlet is less than the second preset temperature, the opening degree of the second three-way valve is adjusted to (110-; when the temperature of the outlet of the air conditioner is higher than the second preset temperature, the opening degree of the second three-way valve is adjusted to 80-90% of the second preset opening degree, the power of the air blower is at the first preset power, and the angle of the second water baffle deflects by 10-20 degrees.
6. The control method according to claim 5, wherein the difference between the inlet temperature value of the fan and the preset temperature value and the difference between the outlet temperature value of the air conditioner and the preset temperature value is compared and analyzed, so as to select the corresponding control method of the three-way regulating valve, the air blower and the water eliminator.
7. The control method according to claim 6, wherein the first-stage heat exchanger is used for cooling and dehumidifying the inlet air, and the first water eliminator is used for blocking condensed water separated out through the first-stage heat exchanger; the air blower converts electric energy into heat energy and kinetic energy, the second-stage heat exchanger is used for carrying out temperature treatment on air outlet of the air blower, the air filter is used for filtering dust and impurities in air, the three-way regulating valve is used for regulating refrigerant agent flow, the temperature sensor is used for detecting temperature of each point of the air conditioning system and transmitting parameters to the controller, the controller regulates the rotating speed of the air blower by controlling the power of the air blower and controls gas flow by controlling the deflection angle of the water retainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910972232.6A CN110779109B (en) | 2019-10-14 | 2019-10-14 | Air conditioning system with fan waste heat recovery function and control method thereof |
Applications Claiming Priority (1)
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| US11604005B1 (en) * | 2022-03-03 | 2023-03-14 | Tuckemuck Technology, L.L.C. | In-line device for controlling ventilation system |
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