CN114234308A - Cold-heat compensation split type total heat exchange fresh air conditioning system and control method thereof - Google Patents
Cold-heat compensation split type total heat exchange fresh air conditioning system and control method thereof Download PDFInfo
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- CN114234308A CN114234308A CN202111389746.2A CN202111389746A CN114234308A CN 114234308 A CN114234308 A CN 114234308A CN 202111389746 A CN202111389746 A CN 202111389746A CN 114234308 A CN114234308 A CN 114234308A
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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
- 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
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/85—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 variable-flow pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid 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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention discloses a cold and heat compensation split type total heat exchange fresh air conditioning system, which comprises a fresh air unit, an exhaust fan unit and a heat exchange system, wherein the heat exchange system comprises a heating and refrigerating module, an electric pump, a liquid guide pipe, a valve, a temperature sensing module and a temperature intelligent module; according to the indoor and outdoor temperature difference, the split type cold and heat exchange fresh air conditioning system runs in a corresponding mode, and the heat exchange system can be controlled to improve the heat exchange rate by compensating the cold and heat quantity, so that the temperature of air pumped into the room is changed, and discomfort caused by cold air or hot air pumped into the room by an indoor human body is avoided.
Description
Technical Field
The invention relates to the technical field of cold and heat compensation of fresh air conditioners, in particular to a cold and heat compensation split type total heat exchange fresh air conditioning system and a control method thereof.
Background
In recent years, with the continuous development of society and the continuous progress of scientific level, the fresh air conditioning system is widely applied to various fields by people, the fresh air conditioning system pumps outdoor air into the room through a fresh air unit and discharges the indoor air out of the room through an exhaust unit so as to achieve the purpose of ventilation, but under the condition that the temperature difference between the indoor and the outdoor of the existing fresh air unit is large, hot air is pumped into the room in summer or cold air is pumped into the room in winter, and the temperature difference is large, so that discomfort of a human body is easily caused. At present, a cold and heat compensation total heat exchange fresh air conditioning system is generally divided into an integral cold and heat compensation total heat exchange fresh air conditioning system and a split cold and heat compensation total heat exchange fresh air conditioning system.
At present, compared with an integral cold-heat compensation total heat exchange fresh air conditioning system, the split type cold-heat compensation total heat exchange fresh air conditioning system has higher heat exchange efficiency and more energy conservation, has wider application places and better flexibility due to the split type design, is suitable for perfect switching of heat exchange in different seasons, and achieves the effect of heat exchange; the integral cold and heat compensation total heat exchange fresh air conditioning system is only suitable for summer and has no heat recovery effect in winter.
Meanwhile, the existing split type cold and heat compensation total heat exchange fresh air conditioning system also has the defects that the heating and refrigerating module is lacked, and meanwhile, the indoor and outdoor temperature cannot be detected in real time, so that self-regulation cannot be carried out according to the real-time indoor and outdoor temperature.
Therefore, a cold and heat compensation split type total heat exchange fresh air conditioning system and a control method thereof are urgently needed in the market to solve the problem.
Disclosure of Invention
The invention provides a cold-heat compensation split type total heat exchange fresh air conditioning system aiming at the defects in the prior art, which adopts split type installation to separately install a fresh air unit and an exhaust fan unit of the cold-heat compensation split type total heat exchange fresh air conditioning system and strengthen the air flow speed and the air flow effect of the fresh air unit and the exhaust fan unit.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cold and heat compensation split type total heat exchange fresh air conditioning system comprises a fresh air unit, an exhaust unit and a heat exchange system, the heat exchange system comprises a heating and refrigerating module, an electric pump, a liquid guide pipe, a valve, a temperature sensing module and a temperature intelligent module, the heating and refrigerating module, the electric pump and the valve are all arranged on the liquid guide pipe, heat conduction liquid is arranged in the liquid guide pipe, the electric pump provides power source for the heat-conducting liquid to circularly flow between the fresh air unit and the exhaust unit, the flowing direction of the heat-conducting liquid is controlled by a valve, the temperature condition of each link is detected by a temperature sensing module, the temperature value detected by the temperature sensing module is received by a temperature intelligent module, thereby controlling the opening or closing of the heating pump, the heating and refrigerating module and the valve, and further controlling the flow direction of the heat-conducting liquid and the cold and heat compensation of the indoor temperature.
As a further elaboration of the above technical solution:
in the above technical solution, the liquid guide tube includes a first liquid guide tube, a second liquid guide tube, a third liquid guide tube, a first liquid guide capillary tube and a second liquid guide capillary tube, the first liquid guide tube, the second liquid guide tube, the third liquid guide tube, the first liquid guide capillary tube and the second liquid guide capillary tube are communicated with each other, the first liquid guide tube includes a front portion of the first liquid guide tube, a middle portion of the first liquid guide tube and a rear portion of the first liquid guide tube, the third liquid guide tube includes a front portion of the third liquid guide tube, a middle portion of the third liquid guide tube and a rear portion of the third liquid guide tube, one end of the second liquid guide tube is communicated with the middle portion of the first liquid guide tube, the other end of the second liquid guide tube is communicated with the middle portion of the third liquid guide tube, the heating and cooling module is disposed at the front portion of the first liquid guide tube, one end of the air inlet duct of the fresh air handling unit is communicated with the front end of the front portion of the first liquid guide tube, the other end of the air inlet duct of the fresh air handling unit is communicated with the front end of the front portion of the third liquid guide tube, the first liquid guide capillary tube is arranged inside an air inlet pipeline of the fresh air unit, one end of an exhaust pipeline of the exhaust unit is communicated with the rear end of the rear part of the third liquid guide tube, the other end of the exhaust pipeline of the exhaust unit is communicated with the rear end of the rear part of the first liquid guide tube, the second liquid guide capillary tube is arranged inside the air inlet pipeline of the exhaust unit, and the first liquid guide capillary tube and the second liquid guide capillary tube are both in a net structure.
In the above technical scheme, the temperature sensing module includes a first temperature sensor, a second temperature sensor, a third temperature sensor, a fourth temperature sensor and a fifth temperature sensor, the first temperature sensor is disposed indoors, the second temperature sensor is disposed outdoors, the third temperature sensor is disposed in front of the first liquid guide tube and between the first liquid guide capillary and the heating and cooling module, the fourth temperature sensor is disposed at the rear of the first liquid guide tube, and the fifth temperature sensor is disposed in front of the second liquid guide tube.
In the above technical scheme, the valve includes a first valve and a second valve, the first valve is disposed at the second liquid guide tube, the second valve is disposed at the rear portion of the third liquid guide tube, the front portion of the first liquid guide tube, the first liquid guide capillary tube, the fresh air unit, the first valve and the second liquid guide tube form a first heat conduction liquid loop, and the first liquid guide tube, the first liquid guide capillary tube, the fresh air unit, the second valve, the third liquid guide tube and the exhaust fan unit form a second heat conduction liquid loop.
The utility model provides a control method based on split type total heat exchange new trend air conditioning system of cold and heat compensation, its includes ordinary control mode, low compensation control mode and high compensation control mode, ordinary control mode is when the difference numerical range of the detection numerical value of first temperature sensor and second temperature sensor is close, low compensation control mode is when the difference numerical range of the detection numerical value of first temperature sensor and second temperature sensor is less, high compensation control mode is when great for the difference numerical range of the detection numerical value of first temperature sensor and the detection numerical value of second temperature sensor.
In the above technical solution, the normal control mode is when a difference value range of a detection value of the first temperature sensor and a detection value of the second temperature sensor is 0-5 ℃, the low compensation control mode is when a difference value range of a detection value of the first temperature sensor and a detection value of the second temperature sensor is 5-10 ℃, and the high compensation control mode is when a difference value range of a detection value of the first temperature sensor and a detection value of the second temperature sensor is more than 10 ℃.
In the technical scheme, when the difference value range of the detection value of the first temperature sensor and the detection value of the second temperature sensor is 0-5 ℃, the temperature intelligent module controls the fresh air unit to draw outdoor air into a room and the exhaust unit to draw indoor air out of the room after receiving the detection value of the first temperature sensor and the detection value of the second temperature sensor, so that the purpose of indoor and outdoor ventilation is achieved.
In the above technical scheme, when the difference value range of the detection value of the first temperature sensor and the detection value of the second temperature sensor is 5-10 ℃, the temperature intelligent module receives the detection value of the first temperature sensor and the detection value of the second temperature sensor, the temperature intelligent module gives an electric signal to the electric pump, the electric pump starts to work to drive the heat-conducting liquid, the heating and refrigerating module and the first valve are closed, the second valve is opened, the heat-conducting liquid circularly flows in the second heat-conducting liquid loop under the action of the electric pump, and when passing through the exhaust unit, the heat in the outdoor air discharged by the exhaust unit is absorbed and then transmitted to the fresh air unit, so that the heat of the indoor air pumped from the outdoor by the fresh air unit is neutralized, and the purpose of total heat exchange is achieved.
In the technical scheme, in summer and when the difference value range of the detection value of the first temperature sensor and the detection value of the second temperature sensor is more than 10 ℃, the temperature intelligent module gives an electric signal to the heating and refrigerating module, so that the refrigerating module of the heating and refrigerating module starts to be started, heat-conducting liquid cooled by the refrigerating module flows through the fresh air handling unit through the third temperature sensor under the action of the electric pump, and the heat in the air pumped into the room from the outside by the fresh air handling unit is absorbed; in the process, if the temperature value of the current position detected by the fifth temperature sensor is lower than the temperature value of the current position detected by the fourth temperature sensor, the second valve is closed, the first valve is opened, the heat-conducting liquid does not flow to the second heat-conducting liquid loop and directly circularly flows in the first heat-conducting liquid loop, the heat-conducting liquid directly enters the refrigeration module, and the heat-conducting liquid enters the fresh air handling unit after being refrigerated by the refrigeration module; if the temperature value of the current position detected by the fifth temperature sensor is higher than that of the current position detected by the fourth temperature sensor, the first valve is closed, the second valve is opened, the heat-conducting liquid circularly flows in the second heat-conducting liquid loop, and the heat of the heat-conducting liquid is discharged outdoors through the exhaust unit and then returns to the refrigeration module for circulation, so that the purpose of total heat exchange is achieved.
In the technical scheme, in winter and when the difference value range of the detection value of the first temperature sensor and the detection value of the second temperature sensor is more than 10 ℃, the temperature intelligent module gives an electric signal to the heating and refrigerating module, so that the heating module of the heating and refrigerating module starts to be started, the heat-conducting liquid heated by the heating module flows through the fresh air handling unit through the third temperature sensor under the action of the electric pump, and the fresh air handling unit is heated by air pumped into the room from the outside; if the temperature value of the current position detected by the fifth temperature sensor is higher than the temperature value of the current position detected by the fourth temperature sensor, the second valve is closed, the first valve is opened, the heat-conducting liquid does not flow to the second heat-conducting liquid loop and directly circularly flows in the first heat-conducting liquid loop, and the heat-conducting liquid directly enters the heating module, is heated by the heating module and then enters the fresh air handling unit; if the temperature value of the current position detected by the fifth temperature sensor is lower than that of the current position detected by the fourth temperature sensor, the first valve is closed, the second valve is opened, and the heat-conducting liquid absorbs heat in outdoor air exhausted by the exhaust unit after passing through the exhaust unit, so that the purpose of total heat exchange is achieved.
Compared with the prior art, the split type full heat exchange fresh air conditioning system has obvious advantages and beneficial effects, particularly, the split type installation is adopted, the fresh air unit and the exhaust fan unit of the cold and heat compensation split type full heat exchange fresh air conditioning system are separately installed, the air flowing speed and the air flowing effect of the fresh air unit and the exhaust fan unit are enhanced, and the working efficiency of the cold and heat compensation split type full heat exchange fresh air conditioning system is higher; meanwhile, a cold-heat compensation split type total heat exchange control method is adopted, when the indoor and outdoor temperature difference is close, a common control mode is implemented, the fresh air unit pumps outdoor air into the room, the exhaust unit exhausts the indoor air out of the room, and the heat exchange system does not work, so that the air exchange purpose is achieved; when the indoor and outdoor temperature difference is small, a low compensation control mode is implemented, and useless heat exchange loss is reduced; aiming at the condition of large indoor and outdoor temperature difference, the split type total heat exchange fresh air conditioning system with controllable cold and heat compensation can improve the heat exchange rate by starting the heating and refrigerating module to compensate the cold and heat quantity, thereby changing the temperature of the fresh air unit for pumping indoor air and avoiding discomfort of indoor human bodies caused by cold air or hot air pumped into the room; and the method has no cross infection of air inside and outside the exchange room and no internal air leakage rate, solves the use problem of special places, such as hospitals, laboratories and other places, is easy to overhaul and convenient to install compared with the integral cold-heat compensation split type total heat exchange fresh air conditioning system, meets the requirements of different places, and realizes energy conservation and environmental protection.
To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions attained thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:
drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a heat transfer fluid operating diagram for a low compensation control mode;
FIG. 3 is a diagram of the heat transfer fluid operating in the high compensation control mode.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
As shown in fig. 1-3, a split type total heat exchange fresh air conditioning system with cold and heat compensation comprises a fresh air unit 1, an exhaust unit 2 and a heat exchange system, wherein the heat exchange system comprises a heating and refrigerating module 3, an electric pump 4, a catheter 5, a valve 6, a temperature sensing module and a temperature intelligent module 8, the heating and refrigerating module 3, the electric pump 4 and the valve 6 are all arranged on the catheter 5, heat-conducting liquid is arranged inside the catheter 5, the electric pump 4 provides power source for the heat-conducting liquid to circularly flow between the fresh air unit 1 and the exhaust unit 2, the valve 6 controls the flow direction of the heat-conducting liquid, the temperature sensing module detects the temperature conditions of indoor, outdoor and heat-conducting liquid, and the temperature intelligent module 8 receives the temperature value detected by the temperature sensing module, thereby controlling the heating pump, the exhaust unit 2 and the heat exchange system, The heating and refrigerating module 3 and the valve 6 are opened or closed, so as to control the flow direction of the heat-conducting liquid and the cold and heat compensation of the indoor temperature.
Preferably, the new fan unit 1 or the exhaust duct of the new fan unit 1 is installed indoors, and the exhaust fan unit 2 or the exhaust duct of the exhaust fan unit 2 is installed outdoors.
Preferably, the new fan unit 1 or the exhaust duct of the new fan unit 1 is installed at the work area, and the exhaust duct of the exhaust fan unit 2 or the exhaust duct of the exhaust fan unit 2 is installed at the heat exchange area.
As a further improvement of the present invention, the liquid guide tube 5 includes a first liquid guide tube 51, a second liquid guide tube 52, a third liquid guide tube 53, a first liquid guide capillary tube 54 and a second liquid guide capillary tube 55, the first liquid guide tube 51, the second liquid guide tube 52, the third liquid guide tube 53, the first liquid guide capillary tube 54 and the second liquid guide capillary tube 55 are communicated with each other, the first liquid guide tube 51 includes a first liquid guide tube front portion, a first liquid guide tube middle portion and a first liquid guide tube rear portion, the third liquid guide tube 53 includes a third liquid guide tube front portion, a third liquid guide tube middle portion and a third liquid guide tube rear portion, one end of the second liquid guide tube 52 is communicated with the first liquid guide tube middle portion, the other end of the second liquid guide tube 52 is communicated with the third liquid guide tube middle portion, the heating and cooling module 3 is disposed at the first liquid guide tube front portion, one end of the fresh air inlet duct of the fresh air unit 1 is communicated with the front end of the first liquid guide tube front portion, the other end of the air inlet pipeline of the fresh air unit 1 is communicated with the front end of the front part of the third liquid guide pipe, the first liquid guide capillary tube 54 is arranged inside the air inlet pipeline of the fresh air unit 1, one end of the air outlet pipeline of the air exhaust unit 2 is communicated with the rear end of the rear part of the third liquid guide pipe, the other end of the air outlet pipeline of the air exhaust unit 2 is communicated with the rear end of the rear part of the first liquid guide pipe, the second liquid guide capillary tube 55 is arranged inside the air inlet pipeline of the air exhaust unit 2, and the first liquid guide capillary tube 54 and the second liquid guide capillary tube 55 are both in a net structure.
As a further improvement of the present invention, the temperature sensing module includes a first temperature sensor 71, a second temperature sensor 72, a third temperature sensor 73, a fourth temperature sensor 74 and a fifth temperature sensor 75, the first temperature sensor 71 is disposed indoors, the second temperature sensor 72 is disposed outdoors, the third temperature sensor 73 is disposed in front of the first liquid guide tube and between the first liquid guide capillary 54 and the heating and cooling module 3, the fourth temperature sensor 74 is disposed at the rear of the first liquid guide tube, and the fifth temperature sensor 75 is disposed at the front of the second liquid guide tube 52.
As a further improvement of the present invention, the valve 6 includes a first valve 61 and a second valve 62, the first valve 61 is disposed at the second liquid guiding tube 52, the second valve 62 is disposed at the rear of the third liquid guiding tube, the front of the first liquid guiding tube, the first liquid guiding capillary tube 54, the fresh air unit 1, the first valve 61 and the second liquid guiding tube 52 form a first heat-conducting liquid loop, and the first liquid guiding tube 51, the first liquid guiding capillary tube 54, the fresh air unit 1, the second valve 62, the third liquid guiding tube 53 and the exhaust air unit 2 form a second heat-conducting liquid loop.
The control method comprises a common control mode, a low compensation control mode and a high compensation control mode, wherein when the common control mode is that the difference value range of the detection value of a first temperature sensor 71 and the detection value of a second temperature sensor 72 is close to each other, the low compensation control mode is that the difference value range of the detection value of the first temperature sensor 71 and the detection value of the second temperature sensor 72 is smaller, and the high compensation control mode is that the difference value range of the detection value of the first temperature sensor 71 and the detection value of the second temperature sensor is larger.
As a further improvement of the present invention, the normal control mode is a mode in which the difference between the detected value of the first temperature sensor 71 and the detected value of the second temperature sensor 72 is in the range of 0 to 5 ℃, the low compensation control mode is a mode in which the difference between the detected value of the first temperature sensor 71 and the detected value of the second temperature sensor 72 is in the range of 5 to 10 ℃, and the high compensation control mode is a mode in which the difference between the detected value of the first temperature sensor 71 and the detected value of the second temperature sensor 72 is 10 ℃ or higher.
As a further improvement of the present invention, when the difference value between the detection value of the first temperature sensor 71 and the detection value of the second temperature sensor 72 is in the range of 0-5 ℃, the temperature intelligent module 8 receives the detection value of the first temperature sensor 71 and the detection value of the second temperature sensor 72, and then controls the fresh air handling unit 1 to draw outdoor air into the room and the exhaust air handling unit 2 to draw indoor air out of the room, thereby achieving the purpose of exchanging air between the room and the outside.
As a further improvement of the present invention, when the difference value between the detected value of the first temperature sensor 71 and the detected value of the second temperature sensor 72 is in the range of 5-10 ℃, after the temperature intelligent module 8 receives the detected value of the first temperature sensor 71 and the detected value of the second temperature sensor 72, the temperature intelligent module 8 gives an electric signal to the electric pump 4, the electric pump 4 starts to work to drive the heat-conducting liquid to flow, at this time, the heating and cooling module 3 and the first valve 61 are in a closed state and the second valve 62 is in an open state, the heat-conducting liquid circulates in the second heat-conducting liquid loop under the action of the electric pump 4, and when the heat-conducting liquid passes through the exhaust unit 2, the heat in the outdoor air exhausted by the exhaust unit 2 is absorbed and then transmitted to the fresh air unit 1, so as to neutralize the heat of the indoor air pumped from the outdoor by the fresh air unit 1, thereby achieving the purpose of total heat exchange.
In this embodiment, temperature intelligent object 8 is equipped with preset temperature value, and the user can artifically set for and adjust temperature intelligent object 8's preset temperature value, heats or cools off heat-conducting liquid through heating refrigeration module to make heat-conducting liquid carry out the neutralization to fresh air handling unit 1 from the indoor air of outdoor suction, make fresh air handling unit be close until reaching temperature intelligent object 8's preset temperature value from the indoor air of outdoor suction.
As a further improvement of the present invention, in summer and when the difference value range between the detection value of the first temperature sensor 71 and the detection value of the second temperature sensor 72 is above 10 ℃, the temperature intelligent module 8 gives an electric signal to the heating and refrigerating module 3, so that the refrigerating module of the heating and refrigerating module 3 starts to be started, the heat-conducting liquid cooled by the refrigerating module flows through the fresh air handling unit 1 through the third temperature sensor 73 under the action of the electric pump 4, and absorbs heat in the air pumped into the room by the fresh air handling unit 1 from the outside, so that the air pumped into the room by the fresh air handling unit 1 from the outside is cooled, and slowly approaches to the preset temperature value of the temperature intelligent module 8; in the above process, if the temperature value of the current position detected by the fifth temperature sensor 75 is lower than the temperature value of the current position detected by the fourth temperature sensor 74, the second valve 62 is closed, the first valve 61 is opened, the heat-conducting liquid cooled by the cooling module enters the fresh air handling unit 1, the heat-conducting liquid does not flow to the second heat-conducting liquid loop, the heat-conducting liquid directly flows in the first heat-conducting liquid loop in a circulating manner, the heat-conducting liquid is continuously and rapidly cooled, the heat of the air pumped into the room from the outdoor by the fresh air handling unit 1 is absorbed and neutralized better and rapidly, and the temperature of the air pumped into the room from the outdoor by the fresh air handling unit 1 is reduced, so that the temperature of the air pumped into the room from the outdoor is close to the preset value.
In this embodiment, when the temperature of the air drawn into the room by the fresh air handling unit 1 from the outside reaches the preset value, and at this time, the temperature value of the current position detected by the fifth temperature sensor 75 is lower than the temperature value of the current position detected by the fourth temperature sensor 74, the refrigeration module of the heating and refrigeration module 3 slowly reduces the refrigeration power, so that the temperature value of the current position detected by the fifth temperature sensor 75 slowly increases, until the temperature value of the current position detected by the fifth temperature sensor 75 is higher than the temperature value of the current position detected by the fourth temperature sensor 74, the first valve 61 is closed, the second valve 62 is opened, the heat-conducting liquid circularly flows in the second heat-conducting liquid loop, the heat of the heat-conducting liquid is discharged from the outside through the exhaust fan unit 2, and then returns to the refrigeration module again for circulation, thereby achieving the purpose of total heat exchange, the energy consumption of the heating and refrigerating module 3 is reduced.
As a further improvement of the present invention, in winter and when the difference value range between the detection value of the first temperature sensor 71 and the detection value of the second temperature sensor 72 is above 10 ℃, the temperature intelligent module 8 gives an electric signal to the heating and cooling module 3, so that the heating module of the heating and cooling module 3 starts to start, the heat-conducting liquid heated by the heating module flows through the fresh air handling unit 1 through the third temperature sensor 73 under the action of the electric pump 4, the fresh air handling unit 1 sucks indoor air from the outdoor to absorb and neutralize the heat of the heat-conducting liquid, so that the air sucked by the fresh air handling unit 1 from the outdoor is heated, and the temperature is slowly close to the preset temperature value of the temperature intelligent module 8; if the temperature value of the current position detected by the fifth temperature sensor 75 is higher than the temperature value of the current position detected by the fourth temperature sensor 74, the second valve 62 is closed, the first valve 61 is opened, the heat-conducting liquid does not flow to the second heat-conducting liquid loop, and directly and circularly flows in the first heat-conducting liquid loop, so that the heat-conducting liquid is continuously and rapidly heated, the heat of the air sucked into the room from the outdoor by the fresh air handling unit 1 is rapidly neutralized better, the temperature of the air sucked into the room from the outdoor by the fresh air handling unit 1 is increased, and the temperature of the air sucked into the room from the outdoor is close to the preset value.
In this embodiment, when the temperature of the air drawn into the room by the fresh air handling unit 1 from the outdoor reaches the preset value, at this time, the temperature value of the current position detected by the fifth temperature sensor 75 is higher than the temperature value of the current position detected by the fourth temperature sensor 74, the heating module of the heating and cooling module 3 is controlled by the temperature intelligent module to slowly reduce the heating power, so that the temperature value of the current position detected by the fifth temperature sensor 75 is slowly reduced until the temperature value of the current position detected by the fifth temperature sensor 75 is lower than the temperature value of the current position detected by the fourth temperature sensor 74, the first valve 61 is closed, the second valve 62 is opened, the heat-conducting liquid circulates in the second heat-conducting liquid loop, the heat of the heat-conducting liquid is exhausted out of the room by the exhaust unit 2, and then returns to the cooling module again for circulation, thereby achieving the purpose of total heat exchange, the energy consumption of the heating and refrigerating module 3 is reduced.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the present invention, so that any modifications, equivalents, improvements, etc. made to the above embodiment according to the present invention are within the scope of the present invention.
Claims (10)
1. A cold and heat compensation split type total heat exchange fresh air conditioning system is characterized by comprising a fresh air unit, an exhaust fan unit and a heat exchange system, the heat exchange system comprises a heating and refrigerating module, an electric pump, a liquid guide pipe, a valve, a temperature sensing module and a temperature intelligent module, the heating and refrigerating module, the electric pump and the valve are all arranged on the liquid guide pipe, heat conduction liquid is arranged in the liquid guide pipe, the electric pump provides power source for the heat-conducting liquid to circularly flow between the fresh air unit and the exhaust unit, the flowing direction of the heat-conducting liquid is controlled by a valve, the temperature condition of each link is detected by a temperature sensing module, the temperature value detected by the temperature sensing module is received by a temperature intelligent module, thereby controlling the opening or closing of the heating pump, the heating and refrigerating module and the valve, and further controlling the flow direction of the heat-conducting liquid and the cold and heat compensation of the indoor temperature.
2. The cold and heat compensation split type total heat exchange fresh air conditioning system according to claim 1, wherein the liquid guide tube comprises a first liquid guide tube, a second liquid guide tube, a third liquid guide tube, a first liquid guide capillary tube and a second liquid guide capillary tube, the first liquid guide tube, the second liquid guide tube, the third liquid guide tube, the first liquid guide capillary tube and the second liquid guide capillary tube are communicated with each other, the first liquid guide tube comprises a first liquid guide tube front part, a first liquid guide tube middle part and a first liquid guide tube rear part, the third liquid guide tube comprises a third liquid guide tube front part, a third liquid guide tube middle part and a third liquid guide tube rear part, one end of the second liquid guide tube is communicated with the first liquid guide tube middle part, the other end of the second liquid guide tube is communicated with the third liquid guide tube middle part, the heating and refrigerating module is arranged at the first liquid guide tube front part, one end of the air inlet duct of the fresh air handling unit is communicated with the front end of the first liquid guide tube front part, the other end of the air inlet pipeline of the fresh air unit is communicated with the front end of the front part of the third liquid guide pipe, the first liquid guide capillary tube is arranged inside the air inlet pipeline of the fresh air unit, one end of the air exhaust pipeline of the air exhaust unit is communicated with the rear end of the rear part of the third liquid guide pipe, the other end of the air exhaust pipeline of the air exhaust unit is communicated with the rear end of the rear part of the first liquid guide pipe, the second liquid guide capillary tube is arranged inside the air inlet pipeline of the air exhaust unit, and the first liquid guide capillary tube and the second liquid guide capillary tube are both in a net structure.
3. The cold-heat compensation split type total heat exchange fresh air conditioning system according to claim 2, wherein the temperature sensing module comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a fourth temperature sensor and a fifth temperature sensor, the first temperature sensor is arranged indoors, the second temperature sensor is arranged outdoors, the third temperature sensor is arranged in front of the first liquid guide pipe and located between the first liquid guide capillary and the heating and cooling module, the fourth temperature sensor is arranged at the rear of the first liquid guide pipe, and the fifth temperature sensor is arranged at the front of the second liquid guide pipe.
4. The split type total heat exchange fresh air conditioning system according to claim 3, wherein the valves include a first valve and a second valve, the first valve is disposed at the second liquid guide tube, the second valve is disposed at the rear portion of the third liquid guide tube, the front portion of the first liquid guide tube, the first liquid guide capillary tube, the fresh air unit, the first valve and the second liquid guide tube form a first heat conduction liquid loop, and the first liquid guide tube, the first liquid guide capillary tube, the fresh air unit, the second valve, the third liquid guide tube and the exhaust air unit form a second heat conduction liquid loop.
5. A control method of a cold-heat compensation split type total heat exchange fresh air conditioning system according to claims 1-4, characterized in that the control method comprises a normal control mode, a low compensation control mode and a high compensation control mode, wherein the normal control mode is that when the difference value range of the detection value of the first temperature sensor and the detection value of the second temperature sensor is close, the low compensation control mode is that when the difference value range of the detection value of the first temperature sensor and the detection value of the second temperature sensor is smaller, the high compensation control mode is that when the difference value range of the detection value of the first temperature sensor and the detection value of the second temperature sensor is larger.
6. The control method of the cold-heat compensation split type total heat exchange fresh air conditioning system according to claim 5, wherein the normal control mode is that the difference value range of the detection value of the first temperature sensor and the detection value of the second temperature sensor is 0-5 ℃, the low compensation control mode is that the difference value range of the detection value of the first temperature sensor and the detection value of the second temperature sensor is 5-10 ℃, and the high compensation control mode is that the difference value range of the detection value of the first temperature sensor and the detection value of the second temperature sensor is more than 10 ℃.
7. The control method of the cold-heat compensation split type total heat exchange fresh air conditioning system according to claim 6, wherein when the difference value range between the detection value of the first temperature sensor and the detection value of the second temperature sensor is 0-5 ℃, the temperature intelligent module receives the detection value of the first temperature sensor and the detection value of the second temperature sensor, controls the fresh air unit to draw outdoor air into the room and the exhaust unit to draw indoor air out of the room, and the heat exchange system does not work at this time, so that the purpose of exchanging air between the room and the outside is achieved.
8. The control method of the cold-heat compensation split type total heat exchange fresh air conditioning system according to claim 6, wherein when the difference value between the detection value of the first temperature sensor and the detection value of the second temperature sensor is in the range of 5-10 ℃, after the temperature intelligent module receives the detection value of the first temperature sensor and the detection value of the second temperature sensor, the temperature intelligent module gives an electric signal to the electric pump, the electric pump starts to work to drive the heat transfer liquid, at the moment, the heating and cooling module and the first valve are closed, the second valve is opened, the heat transfer liquid circulates in the second heat transfer liquid loop under the action of the electric pump, and when the heat transfer liquid passes through the exhaust unit, the heat in the outdoor air exhausted by the exhaust unit is absorbed and then transmitted to the fresh air unit, thereby neutralizing the heat of the indoor air pumped by the fresh air unit from the outdoor, thereby achieving the purpose of total heat exchange.
9. The control method of the cold-heat compensation split type total heat exchange fresh air conditioning system according to claim 6, wherein in summer and when the difference value range between the detection value of the first temperature sensor and the detection value of the second temperature sensor is above 10 ℃, the temperature intelligent module gives an electric signal to the heating and cooling module, so that the cooling module of the heating and cooling module starts to start, heat conduction liquid cooled by the cooling module flows through the fresh air handling unit through the third temperature sensor under the action of the electric pump, and the fresh air handling unit absorbs heat in air pumped into the room from the outside; in the process, if the temperature value of the current position detected by the fifth temperature sensor is lower than the temperature value of the current position detected by the fourth temperature sensor, the second valve is closed, the first valve is opened, the heat-conducting liquid does not flow to the second heat-conducting liquid loop and directly circularly flows in the first heat-conducting liquid loop, the heat-conducting liquid directly enters the refrigeration module, and the heat-conducting liquid enters the fresh air handling unit after being refrigerated by the refrigeration module; if the temperature value of the current position detected by the fifth temperature sensor is higher than that of the current position detected by the fourth temperature sensor, the first valve is closed, the second valve is opened, the heat-conducting liquid circularly flows in the second heat-conducting liquid loop, and the heat of the heat-conducting liquid is discharged outdoors through the exhaust unit and then returns to the refrigeration module for circulation, so that the purpose of total heat exchange is achieved.
10. The control method of the cold-heat compensation split type total heat exchange fresh air conditioning system according to claim 6, wherein in winter and when the difference value range between the detection value of the first temperature sensor and the detection value of the second temperature sensor is above 10 ℃, the temperature intelligent module gives an electric signal to the heating and refrigerating module, so that the heating module of the heating and refrigerating module starts to start, heat conduction liquid heated by the heating module flows through the fresh air handling unit through the third temperature sensor under the action of the electric pump, and the fresh air handling unit heats air pumped into the room from the outside; if the temperature value of the current position detected by the fifth temperature sensor is higher than the temperature value of the current position detected by the fourth temperature sensor, the second valve is closed, the first valve is opened, the heat-conducting liquid does not flow to the second heat-conducting liquid loop and directly circularly flows in the first heat-conducting liquid loop, and the heat-conducting liquid directly enters the heating module, is heated by the heating module and then enters the fresh air handling unit; if the temperature value of the current position detected by the fifth temperature sensor is lower than that of the current position detected by the fourth temperature sensor, the first valve is closed, the second valve is opened, and the heat-conducting liquid absorbs heat in outdoor air exhausted by the exhaust unit after passing through the exhaust unit, so that the purpose of total heat exchange is achieved.
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| CN114234308B (en) | 2023-04-07 |
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