CN114484588A - Fresh air purification air conditioning system and control method - Google Patents

Fresh air purification air conditioning system and control method Download PDF

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Publication number
CN114484588A
CN114484588A CN202210183473.4A CN202210183473A CN114484588A CN 114484588 A CN114484588 A CN 114484588A CN 202210183473 A CN202210183473 A CN 202210183473A CN 114484588 A CN114484588 A CN 114484588A
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China
Prior art keywords
fresh air
air
temperature
air conditioning
pipeline
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Pending
Application number
CN202210183473.4A
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Chinese (zh)
Inventor
胡小青
王静
张宗书
严辉容
苏祖刚
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Sichuan Engineering Technical College
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Sichuan Engineering Technical College
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Priority to CN202210183473.4A priority Critical patent/CN114484588A/en
Publication of CN114484588A publication Critical patent/CN114484588A/en
Pending legal-status Critical Current

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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement 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
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F24F11/67—Switching between heating and cooling modes
    • 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
    • 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
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • 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
    • F24F5/0007—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 cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001—Compression cycle type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application discloses a fresh air purification air conditioning system and a control method, wherein the system comprises a fresh air unit and an air conditioning unit, the fresh air unit comprises an air inlet and an air outlet, a temperature sensor is arranged at the air inlet, and the temperature sensor is used for detecting the initial temperature of fresh air at the air inlet; the air conditioning unit passes through the pipeline and is connected with the new trend unit, and the air conditioning unit is used for starting the refrigeration mode according to new trend initial temperature in order to reduce new trend initial temperature or start the mode of heating in order to promote new trend initial temperature, reaches indoor current temperature until new trend initial temperature, and this application has the temperature that can synchronous adjustment get into indoor new trend, improves the advantage that the comfort level is felt to the user.

Description

Fresh air purification air conditioning system and control method
Technical Field
The application relates to the technical field of air conditioning, in particular to a fresh air purification air conditioning system and a control method.
Background
At present winter, the air supply mode of the fresh air purification air conditioner is mainly an air circulation mode which is used for filtering fresh air with the temperature lower than the indoor current temperature and then bringing the fresh air into the room, in summer, filtering fresh air with the temperature higher than the indoor current temperature and then bringing the fresh air into the room, and then discharging indoor dirty air out of the room, and the purpose of the air circulation mode is to improve the indoor air quality.
However, most of the existing fresh air conditioning systems are two independent structural systems of a fresh air purification system and an air conditioning system, the temperature of fresh air entering a room cannot be adjusted by synchronous zero-time difference, and the comfort level of a user is poor.
Disclosure of Invention
The main purpose of this application is to provide a new trend purification air conditioning system and control method, aims at solving current new trend air conditioning system and can not the temperature of synchronous adjustment entering indoor new trend, and the relatively poor technical problem of comfort level is felt to the user body.
In order to achieve the purpose, the application provides a fresh air purification air conditioning system which comprises a fresh air unit and an air conditioning unit, wherein the fresh air unit comprises an air inlet and an air outlet, a temperature sensor is arranged at the air inlet, and the temperature sensor is used for detecting the initial temperature of fresh air at the air inlet; the air conditioning unit is connected with the fresh air unit through a pipeline, and the air conditioning unit is used for starting a refrigeration mode according to the fresh air initial temperature so as to reduce the fresh air initial temperature or starting a heating mode so as to increase the fresh air initial temperature until the fresh air initial temperature reaches the indoor current temperature.
Optionally, the air conditioning unit further comprises a compressor and a four-way valve, the temperature sensor is electrically connected with the compressor, a first pipeline and a second pipeline are respectively connected between the compressor and the four-way valve, the four-way valve is respectively connected with a third pipeline and a fourth pipeline, a condenser is arranged on the fourth pipeline, the fresh air unit further comprises an evaporator, and the evaporator is respectively connected with the third pipeline and the fourth pipeline.
Optionally, a first stop valve is arranged on the third pipeline, and a second stop valve is arranged on the fourth pipeline, and the second stop valve is located between the evaporator and the condenser.
Optionally, an electronic expansion valve is further disposed on the fourth pipeline, and the electronic expansion valve is located between the second stop valve and the condenser.
Optionally, a muffler is disposed on the second conduit between the compressor and the four-way valve.
Optionally, be provided with the first order filter screen between air intake and the evaporimeter, the first order filter screen is used for filtering large granule dust, is provided with the second grade filter screen between evaporimeter and the air outlet, and the second grade filter screen is used for filtering tiny particle dust and degerming.
Optionally, a fan is arranged between the air inlet and the evaporator, and the fan is used for sucking fresh air into the evaporator.
Optionally, the fresh air unit further comprises an indoor casing, the air inlet, the air outlet, the temperature sensor, the evaporator and the fan are all arranged in the indoor casing, the air conditioning unit further comprises an outdoor casing, and the compressor, the four-way valve, the condenser, the first stop valve, the second stop valve and the electronic expansion valve are all arranged in the outdoor casing.
A control method of a fresh air purification air conditioning system comprises the following steps:
the fresh air unit operates and sucks fresh air through the air inlet;
the temperature sensor detects the initial temperature of the fresh air;
and comparing the initial temperature with a set temperature threshold, if the initial temperature is less than the lowest value of the set temperature threshold, starting a heating mode of the air conditioning unit to increase the initial temperature to the set temperature threshold, discharging the heated fresh air through an air outlet, if the initial temperature is greater than the highest value of the set temperature threshold, starting a cooling mode of the air conditioning unit to reduce the initial temperature to the set temperature threshold, discharging the cooled fresh air through the air outlet, and if the initial temperature is within the set temperature threshold, stopping the operation of the air conditioning unit.
Optionally, the starting the heating mode of the air conditioning unit to raise the initial temperature to the set temperature threshold includes:
the compressor is started to operate, the compressor compresses high-temperature gaseous refrigerant, then the high-temperature gaseous refrigerant passes through the four-way valve, the first stop valve and the evaporator through the pipeline and is mixed with fresh air entering the evaporator, and the initial temperature of the fresh air is increased to 18-24 ℃ of a set temperature threshold;
the starting of the cooling mode of the air conditioning unit to lower the initial temperature to the set temperature threshold includes:
the compressor is started to operate, the high-temperature gaseous refrigerant is compressed by the compressor and then is changed into a low-temperature low-pressure liquid refrigerant through the four-way valve, the condenser and the electronic expansion valve through the pipeline, the low-temperature low-pressure liquid refrigerant enters the evaporator through the second stop valve and is mixed with fresh air, and therefore the initial temperature of the fresh air is reduced to 18-24 ℃ of the set temperature threshold.
The beneficial effect that this application can realize is as follows:
this application synthesizes new trend unit and air conditioning unit integrated into one piece structure, when the new trend initial temperature that detects air intake department through temperature sensor is too high or low back excessively, the air conditioning unit can start the refrigeration mode in order to reduce new trend initial temperature or start the mode of heating in order to promote new trend initial temperature to reach the effect of the temperature of synchronous adjustment entering indoor new trend, avoid the new trend to get into indoor back, indoor temperature suddenly drop or sudden rise, thereby improve user's comfort level.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings that are required in the detailed description of the present application or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of a fresh air purification air conditioning system according to an embodiment of the present disclosure (arrows in the figure indicate the flow direction of a refrigerant medium in a pipeline);
fig. 2 is a schematic flow chart of an operation of a fresh air purification air conditioning system according to an embodiment of the present application.
Reference numerals:
100-a fresh air unit, 110-an air inlet, 120-an air outlet, 130-a temperature sensor, 140-an evaporator, 150-a first-stage filter screen, 160-a second-stage filter screen, 170-an indoor unit shell, 180-a fan, 200-an air conditioning unit, 210-a compressor, 220-a four-way valve, 230-a condenser, 240-a first stop valve, 250-a second stop valve, 260-an electronic expansion valve, 270-a silencer, 280-an outdoor unit shell, 300-a first pipeline, 400-a second pipeline, 500-a third pipeline and 600-a fourth pipeline.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.
It should be noted that all the directional indications (such as up, down, left, right, front, and back … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.
In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Example 1
Referring to fig. 1-2, the present embodiment provides a fresh air purifying air conditioning system, which includes a fresh air unit 100 and an air conditioning unit 200, where the fresh air unit 100 includes an air inlet 110 and an air outlet 120, a temperature sensor 130 is disposed at the air inlet 110, and the temperature sensor 130 is configured to detect an initial temperature of fresh air at the air inlet 110; the air conditioning unit 200 is connected with the fresh air unit 100 through a pipeline, and the air conditioning unit 200 is used for starting a refrigeration mode according to the fresh air initial temperature to reduce the fresh air initial temperature or starting a heating mode to increase the fresh air initial temperature until the fresh air initial temperature reaches the indoor current temperature.
The existing fresh air system brings fresh air with temperature (18 ℃ -24 ℃) lower than or higher than the comfortable feeling of human bodies into a room, people in the room can feel cold air or hot air firstly, then the air conditioning system can automatically raise and lower the temperature to reach the comfortable temperature of the human bodies after judging the temperature, but in the time difference waiting for temperature adjustment, the body feeling comfortable degree is greatly reduced, in addition, most of the current fresh air conditioners are two independent structural systems in a fresh air purification system and an air conditioning system room, and the temperature of the fresh air entering the room can not be adjusted synchronously at zero time difference.
Therefore, in this embodiment, the fresh air unit 100 and the air conditioning unit 200 are connected by a pipeline to form an integrated structure, so that the whole operation can be controlled by the same control unit, when the initial temperature of the fresh air at the air inlet 110 is detected to be too high or too low by the temperature sensor 130, the air conditioning unit 200 can start the refrigeration mode to reduce the initial temperature of the fresh air or start the heating mode to increase the initial temperature of the fresh air, thereby achieving the effect of synchronously adjusting the temperature of the fresh air entering the room, and avoiding sudden drop or sudden rise of the indoor temperature after the fresh air enters the room, thereby improving the comfort level of users.
It should be noted that the air inlet 110 may be connected to an air inlet pipe leading out of the room, so as to suck fresh outdoor air into the air inlet 110, and the pipeline is used for conveying the refrigerant medium. In addition, when the temperature sensor 130 detects that the initial temperature of the fresh air is matched with the current indoor temperature, the air conditioning unit 200 does not need to operate, and the effects of energy conservation and emission reduction are achieved, so that the consumption is reduced.
As an optional implementation manner, the air conditioning unit 200 further includes a compressor 210 and a four-way valve 220, the temperature sensor 130 is electrically connected to the compressor 210, a first pipeline 300 and a second pipeline 400 are respectively connected between the compressor 210 and the four-way valve 220, the four-way valve 220 is respectively connected to a third pipeline 500 and a fourth pipeline 600, the fourth pipeline 600 is provided with a condenser 230, the fresh air unit 100 further includes an evaporator 140, and the evaporator 140 is respectively connected to the third pipeline 500 and the fourth pipeline 600.
In this embodiment, the temperature sensor 130 is electrically connected to the compressor 210 through a controller (not shown), the temperature sensor 130 starts the compressor 210 to operate according to the detected initial temperature of the fresh air, if the initial temperature of the fresh air is lower than the temperature (i.e. lower than 18 ℃) which is comfortable for human body, the compressor 210 compresses a high-temperature gaseous refrigerant, and then the compressed high-temperature gaseous refrigerant enters the evaporator 140 through the four-way valve 220 and the third pipeline 500 through the second pipeline 400 and is mixed with the fresh air entering the evaporator 140 until the initial temperature of the fresh air is raised to the temperature which is comfortable for human body, so that the heating mode of the air conditioning unit 200 is realized; similarly, when the initial temperature of the fresh air is higher than the temperature of the human body comfort (i.e. higher than 24 ℃), the compressor 210 is started to operate, the compressor 210 compresses the high-temperature gaseous refrigerant and then changes the high-temperature gaseous refrigerant into a low-temperature low-pressure liquid refrigerant through the four-way valve 220 and the condenser 230, the low-temperature low-pressure liquid refrigerant enters the evaporator 140 through the fourth pipeline 600 and is mixed with the fresh air, so that the initial temperature of the fresh air is reduced to the temperature of the human body comfort, and the refrigeration mode of the air conditioning unit 200 is realized.
The above-mentioned pipeline includes first pipeline 300, second pipeline 400, third pipeline 500 and fourth pipeline 600.
As an alternative embodiment, a first cut-off valve 240 is provided on the third pipeline 500, and a second cut-off valve 250 is provided on the fourth pipeline 600, the second cut-off valve 250 being located between the evaporator 140 and the condenser 230.
In the present embodiment, the first and second cutoff valves 240 and 250 are opened when the system is operated to ensure a heat exchange cycle, and the first and second cutoff valves 240 and 250 may be closed when the system is not operated.
As an alternative embodiment, an electronic expansion valve 260 is further disposed on the fourth pipeline 600, and the electronic expansion valve 260 is located between the second cut-off valve 250 and the condenser 230. The electronic expansion valve 260 is a throttling element capable of entering the refrigerant flow of the refrigerating device according to a preset program, and in some occasions with severe load change or wide operating condition range, the traditional throttling element (such as a capillary tube, a thermostatic expansion valve and the like) can not meet the requirements of comfort and energy conservation, so that the electronic expansion valve 260 as a novel control element becomes an important link of the intellectualization of the refrigerating system, and is also an important means and guarantee for the optimization of the refrigerating system.
As an alternative embodiment, a muffler 270 is disposed on the second pipe 400 between the compressor 210 and the four-way valve 220. The refrigerant medium processed by the compressor 210 has a relatively large noise after coming out from the second pipeline 400, so that the muffler 270 plays a role in eliminating noise, the noise influence during system operation is reduced, and the comfort of a user is improved.
As an alternative embodiment, a first-stage filter 150 is disposed between the air inlet 110 and the evaporator 140, the first-stage filter 150 is used for filtering large-particle dust, and a second-stage filter 160 is disposed between the evaporator 140 and the air outlet 120, the second-stage filter 160 is used for filtering small-particle dust and sterilizing.
In this embodiment, no matter be the mode of refrigerating or heating, the new trend all can pass through first order filter screen 150 earlier in reentrant evaporimeter 140, thereby filter the large granule dust in the new trend, the preferred H14 filter screen of first order filter screen 150 here, the new trend after the temperature regulation that comes out from evaporimeter 140 can pass second level filter screen 160, go out from air outlet 120 again, can filter the tiny granule dust in the new trend and the degerming through second level filter screen 160 this moment, the purification degree is high and efficiency all is higher, twice filter, make the indoor air quality of entering obtain the guarantee, can keep indoor long time indoor air fresh-ness.
It should be noted that, here, the fresh air is filtered by the first stage filter screen 150 and then enters the evaporator 140, which not only can reduce the problem of blockage caused by large particle dust entering the evaporator 140, but also can promote the temperature regulation efficiency due to the reduction of large particle dust when the temperature of the fresh air is regulated, thereby further playing the role of energy saving and emission reduction.
As an optional embodiment, a fan 180 is disposed between the air inlet 110 and the evaporator 140, the fan 180 is used for sucking fresh air into the evaporator 140, and the fan 180 can work continuously, thereby ensuring the indoor air circulation quality.
As an alternative embodiment, the fresh air unit 100 further includes an indoor housing 170, the air inlet 110, the air outlet 120, the temperature sensor 130, the evaporator 140 and the fan are all disposed in the indoor housing 170, the air conditioning unit 200 further includes an outdoor housing 280, and the compressor 210, the four-way valve 220, the condenser 230, the first stop valve 240, the second stop valve 250 and the electronic expansion valve 260 are all disposed in the outdoor housing 280.
In this embodiment, the fresh air unit 100 can form an indoor unit for circulating indoor air by integrating corresponding components in the indoor unit casing 170, the air conditioning unit 200 can form an outdoor unit by integrating corresponding components in the outdoor unit casing 280, the outdoor pipeline of the outdoor unit and the fresh air inlet pipe of the indoor unit can be led out of the room through the hole on the wall, so that the installation is convenient, and the integrated matching structure of the outdoor unit and the indoor unit can form the circulation function of indoor and outdoor air.
Example 2
Referring to fig. 1 to fig. 2, the present embodiment provides a control method for a fresh air purification air conditioning system, including the following steps:
the fresh air unit 100 operates to suck fresh air through the air inlet 110;
the temperature sensor 130 detects the initial temperature of the fresh air;
comparing the initial temperature with a set temperature threshold, if the initial temperature is less than the lowest value of the set temperature threshold, starting a heating mode of the air conditioning unit 200 to raise the initial temperature to the set temperature threshold, discharging the heated fresh air through the air outlet 120, if the initial temperature is greater than the highest value of the set temperature threshold, starting a cooling mode of the air conditioning unit 200 to lower the initial temperature to the set temperature threshold, discharging the cooled fresh air through the air outlet 120, and if the initial temperature is within the set temperature threshold, stopping the operation of the air conditioning unit 200.
As an alternative embodiment, the starting the heating mode of the air conditioning unit 200 to raise the initial temperature to the set temperature threshold includes:
the compressor 210 is started to operate, the compressor 210 compresses high-temperature gaseous refrigerant, then the high-temperature gaseous refrigerant passes through the four-way valve 220, the first stop valve 240 and the evaporator 140 through the pipeline and is mixed with fresh air entering the evaporator 140, and the initial temperature of the fresh air is increased to 18-24 ℃ of a set temperature threshold;
the starting of the cooling mode of the air conditioning unit 200 to lower the initial temperature to the set temperature threshold includes:
the compressor 210 is started to operate, the compressor 210 compresses the high-temperature gaseous refrigerant, the high-temperature gaseous refrigerant passes through the four-way valve 220, the condenser 230 and the electronic expansion valve 260 through the pipeline and then is changed into a low-temperature low-pressure liquid refrigerant, and the low-temperature low-pressure liquid refrigerant enters the evaporator 140 through the second stop valve 250 and is mixed with fresh air, so that the initial temperature of the fresh air is reduced to the set temperature threshold value of 18-24 ℃.
In this embodiment, a set temperature threshold of 18-24 ℃ may be set for the temperature sensor 130, which is a temperature with better comfort for human body, so that the air conditioning unit 200 may automatically respond to the cooling mode or the heating mode according to whether the initial temperature of the fresh air detected by the temperature sensor 130 is at the set temperature threshold, when the initial temperature of the fresh air is lower than 18 ℃, the heating mode is started to raise the initial temperature to the range of the set temperature threshold, when the temperature is detected to be proper, the air conditioning unit 200 stops operating, the heated fresh air is discharged through the air outlet 120, and similarly, the initial temperature of the fresh air is higher than 24 ℃, the cooling mode is started to lower the initial temperature to the range of the set temperature threshold, when the temperature is detected to be proper, the air conditioning unit 200 stops operating, the cooled fresh air is discharged through the air outlet 120, thereby achieving the effect of synchronously adjusting the temperature of the fresh air entering the room, after the fresh air enters the room, the indoor temperature suddenly drops or rises, so that the comfort level of a user is improved, and it needs to be explained that when the initial temperature of the fresh air is within the range of the set temperature threshold, the air conditioning unit 200 does not need to operate, has the effects of energy conservation and emission reduction, and is more intelligent.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are included in the scope of the present application.

Claims (10)

1. The utility model provides a new trend purifies air conditioning system which characterized in that includes:
the fresh air unit comprises an air inlet and an air outlet, a temperature sensor is arranged at the air inlet, and the temperature sensor is used for detecting the initial temperature of fresh air at the air inlet;
the air conditioning unit is connected with the fresh air unit through a pipeline, and the air conditioning unit is used for starting a refrigeration mode according to the fresh air initial temperature so as to reduce the fresh air initial temperature or starting a heating mode so as to increase the fresh air initial temperature until the fresh air initial temperature reaches the indoor current temperature.
2. The fresh air purifying air conditioning system as claimed in claim 1, wherein the air conditioning unit further comprises a compressor and a four-way valve, the temperature sensor is electrically connected to the compressor, a first pipeline and a second pipeline are respectively connected between the compressor and the four-way valve, a third pipeline and a fourth pipeline are respectively connected to the four-way valve, a condenser is disposed on the fourth pipeline, and the fresh air unit further comprises an evaporator, and the evaporator is respectively connected to the third pipeline and the fourth pipeline.
3. The fresh air purification air conditioning system as claimed in claim 2, wherein a first stop valve is disposed on the third pipeline, and a second stop valve is disposed on the fourth pipeline, and the second stop valve is located between the evaporator and the condenser.
4. The fresh air purifying air conditioning system as claimed in claim 3, wherein an electronic expansion valve is further disposed on the fourth pipeline, and the electronic expansion valve is located between the second stop valve and the condenser.
5. The fresh air purifying air conditioning system as claimed in claim 2, wherein a silencer is disposed on the second pipeline between the compressor and the four-way valve.
6. The fresh air purifying air conditioning system as claimed in claim 2, wherein a first stage filter screen is disposed between the air inlet and the evaporator, the first stage filter screen is used for filtering large particle dust, and a second stage filter screen is disposed between the evaporator and the air outlet, the second stage filter screen is used for filtering small particle dust and sterilizing.
7. The fresh air purifying air conditioning system as claimed in claim 4, wherein a blower is disposed between the air inlet and the evaporator, and the blower is used for sucking fresh air into the evaporator.
8. The fresh air purification air conditioning system as claimed in claim 7, wherein the fresh air unit further comprises an indoor housing, the air inlet, the air outlet, the temperature sensor, the evaporator and the fan are all disposed in the indoor housing, the air conditioning unit further comprises an outdoor housing, and the compressor, the four-way valve, the condenser, the first stop valve, the second stop valve and the electronic expansion valve are all disposed in the outdoor housing.
9. A control method of a fresh air purification air conditioning system as claimed in claim 4, characterized by comprising the following steps:
the fresh air unit operates, and fresh air is sucked in through the air inlet;
the temperature sensor detects the initial temperature of fresh air;
and comparing the initial temperature with a set temperature threshold, if the initial temperature is less than the lowest value of the set temperature threshold, starting a heating mode of the air conditioning unit so as to raise the initial temperature to the set temperature threshold, discharging the heated fresh air through the air outlet, if the initial temperature is greater than the highest value of the set temperature threshold, starting a cooling mode of the air conditioning unit so as to lower the initial temperature to the set temperature threshold, discharging the cooled fresh air through the air outlet, and if the initial temperature is within the set temperature threshold, stopping the operation of the air conditioning unit.
10. The method of claim 9, wherein said initiating a heating mode of the air conditioning unit to raise the initial temperature to the set temperature threshold comprises:
the compressor is started to operate, and after the compressor compresses a high-temperature gaseous refrigerant, the high-temperature gaseous refrigerant passes through the four-way valve, the first stop valve and the evaporator through pipelines and is mixed with fresh air entering the evaporator, so that the initial temperature of the fresh air is increased to 18-24 ℃ of a set temperature threshold;
the starting a cooling mode of the air conditioning unit to lower the initial temperature to the set temperature threshold includes:
the compressor is started to operate, the compressor compresses high-temperature gaseous refrigerant and then changes the high-temperature gaseous refrigerant into low-temperature low-pressure liquid refrigerant after passing through the four-way valve, the condenser and the electronic expansion valve through pipelines, and the low-temperature low-pressure liquid refrigerant enters the evaporator through the second stop valve and is mixed with fresh air so as to reduce the initial temperature of the fresh air to a set temperature threshold value of 18-24 ℃.
CN202210183473.4A 2022-02-25 2022-02-25 Fresh air purification air conditioning system and control method Pending CN114484588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210183473.4A CN114484588A (en) 2022-02-25 2022-02-25 Fresh air purification air conditioning system and control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210183473.4A CN114484588A (en) 2022-02-25 2022-02-25 Fresh air purification air conditioning system and control method

Publications (1)

Publication Number Publication Date
CN114484588A true CN114484588A (en) 2022-05-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210183473.4A Pending CN114484588A (en) 2022-02-25 2022-02-25 Fresh air purification air conditioning system and control method

Country Status (1)

Country Link
CN (1) CN114484588A (en)

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