WO2016023489A1 - Procédé et système de commande pour système de climatisation à élimination de pollution et à air frais - Google Patents

Procédé et système de commande pour système de climatisation à élimination de pollution et à air frais Download PDF

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Publication number
WO2016023489A1
WO2016023489A1 PCT/CN2015/086722 CN2015086722W WO2016023489A1 WO 2016023489 A1 WO2016023489 A1 WO 2016023489A1 CN 2015086722 W CN2015086722 W CN 2015086722W WO 2016023489 A1 WO2016023489 A1 WO 2016023489A1
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Prior art keywords
fresh air
air
heat exchanger
inlet
duct
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PCT/CN2015/086722
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English (en)
Chinese (zh)
Inventor
戴若夫
辜显旺
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戴若夫
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Application filed by 戴若夫 filed Critical 戴若夫
Publication of WO2016023489A1 publication Critical patent/WO2016023489A1/fr

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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
    • 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

Definitions

  • the invention mainly relates to the field of fresh air removal and the invention, and particularly relates to a control method and system for removing the fresh air air conditioning system.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide a control method and system for a fresh air conditioning system for removing winds, which is simple and compact in structure, convenient in operation, and capable of realizing various functions.
  • the present invention adopts the following technical solutions:
  • a control method for a fresh air conditioning system including a host controller, an outdoor temperature sensor, a fresh air heat exchanger, a dust filter, an air conditioner, a fresh air duct, an exhaust duct, a blower, and an exhaust fan, the fresh air
  • the pipeline is equipped with a switching pipeline that can switch the fresh air through the fresh air heat exchanger and the dust filter.
  • the method includes the following steps:
  • S1 The host is powered on and initialized
  • step S3 Comparing the outdoor temperature t with the preset temperature t1, when t ⁇ t1, switching the fresh air heat exchanger in front and the dust filter in the rear, when t>t1, switching the fresh air heat exchanger in the rear and dusting
  • the filter is in front, keep step S2 and step S3 cycle, and proceeds to step S4;
  • a control method for a fresh air conditioning system including a host controller, an outdoor temperature sensor, a fresh air heat exchanger, a dust filter, an air conditioner, a fresh air duct, an exhaust duct, a blower, and an exhaust fan, the fresh air
  • the pipeline is equipped with a switching pipeline that can switch the fresh air through the fresh air heat exchanger and the dust filter.
  • the method includes the following steps:
  • S1 The host is powered on and initialized
  • step S4 Comparing the outdoor temperature t and the switching preset temperature t1: when t ⁇ t1, switching the fresh air heat exchanger in front and the dust removing filter in the rear, when t>t1, switching the fresh air heat exchanger in the rear and dusting
  • the filter is in front, keep step S3 and step S4 cycle, and proceeds to step S5;
  • the preset preset temperature t1 is preset, wherein -20 ° C ⁇ t1 ⁇ -5 ° C.
  • the sequence of the fresh air heat exchanger and the dust removing filter is switched, the sequence of the fresh air flowing through the fresh air heat exchanger and the dust removing filter is changed by controlling the three-way electromagnetic switching valve provided on the switching pipeline and the fresh air duct.
  • the dust removing filter is an electrostatic dust removing filter, and supplies power to the electrostatic dust removing filter while powering the feeding fan and the exhaust fan.
  • An air conditioning system for implementing the above control method, comprising a host controller, an external temperature sensor, a fresh air heat exchanger, a dust filter, an air conditioner, a fresh air duct, an exhaust duct, a blower and an exhaust fan, wherein the fresh air duct is provided
  • a switching pipeline which can switch the fresh air through the fresh air heat exchanger and the dust filter, and the fresh air duct and the exhaust duct are arranged in the air conditioner, and the fresh air duct is connected to the outdoor through the fresh air heat exchanger and the dust filter.
  • the exhaust duct is connected to the outdoor via a fresh air heat exchanger, and the blower is disposed at a blower opening of the fresh air duct, the exhaust fan is disposed at an air outlet of the exhaust duct, and the external temperature sensor is disposed outdoors.
  • the dust filter, the blower and the exhaust fan are electrically connected to the host controller, and the host controller controls the sequence of switching the fresh air through the fresh air heat exchanger and the dust filter.
  • the fresh air duct includes a first air inlet duct, a middle air inlet duct and a last air inlet duct, wherein the first section air inlet duct is connected to the outdoor, the blower is located on the end section air inlet duct and is adjacent to the air supply duct, and the middle section air inlet duct includes The first middle branch pipe of the dust filter and the fresh air heat exchanger is sequentially connected, and the second middle branch pipe which sequentially connects the fresh air heat exchanger and the dust filter.
  • the first stage air inlet pipe is connected to the last stage air inlet pipe through the first middle branch pipe through the dust filter and the fresh air heat exchanger.
  • the second middle branch pipe includes a first inlet three-way electromagnetic switching valve, a third inlet three-way electromagnetic switching valve and a fourth inlet three-way electromagnetic switching valve, and a switchable outlet disposed on the first middle branch pipe Switching the second inlet three-way electromagnetic switching valve and the fifth inlet three-way electromagnetic switching valve, the first inlet three-way electromagnetic switching valve is disposed in the first middle branch pipe
  • the second inlet three-way electromagnetic switching valve is disposed between the fresh air heat exchanger and the dust removing filter
  • the third air inlet three-way electromagnetic switching valve is disposed at the fresh air heat exchanger and the end.
  • the fourth air inlet three-way electromagnetic switching valve is disposed between the second air inlet three-way electromagnetic switching valve and the dust removing filter
  • the fifth air inlet three-way electromagnetic switching valve is disposed in the third
  • the first-stage air inlet pipe passes through the first middle-stage branch pipe through the first air-inlet three-way electromagnetic switching valve, the second air-inlet three-way electromagnetic switching valve, the fresh air heat exchanger
  • the third air inlet three-way electromagnetic switching valve, the dust removing filter, the fourth air inlet three-way electromagnetic switching valve and the fifth air inlet three-way electromagnetic switching valve are connected with the last stage air inlet pipe.
  • the dust filter is an electrostatic precipitator filter
  • the electrostatic precipitator filter is connected with an inlet pipe for cleaning and a drain pipe for discharging sewage, and the inlet pipe is provided with an inlet and outlet valve, the drain pipe
  • the upper part is provided with a drainage on-off valve, and the electrostatic precipitator filter is further provided with a water pump for introducing water from the inlet pipe into the electrostatic precipitator filter.
  • the outdoor temperature sensor feeds back the detection signal to the host controller, and the host controller analyzes and compares the outdoor temperature t with the preset temperature t1, and the host controller The judgment result controls the sequence of switching the fresh air through the fresh air heat exchanger and the dust filter.
  • the fresh air passes through the dust filter and the fresh air heat exchanger in turn, the fresh air is first purified and filtered before being exchanged for cold and heat to avoid fresh air heat exchange.
  • the ash is accumulated inside the device, which can reduce the maintenance work of the fresh air heat exchanger and greatly extend the service life of the fresh air heat exchanger.
  • step S2 and step S3 Cyclically, real-time detection, real-time judgment, real-time switching, and improved automation And, in the method, the detecting, judging and switching steps all reduce the energy consumption before the power transmitting step of the blower and the exhaust fan.
  • the fresh air duct and the exhaust duct are arranged in the air conditioner, and the fresh air duct is connected to the outdoor via the fresh air heat exchanger and the dust filter, and the exhaust duct is connected to the outdoor via the fresh air heat exchanger, and the blower is arranged at At the air supply opening of the fresh air duct, the exhaust fan is arranged at the air outlet of the exhaust duct, the external temperature sensor is set outdoors, the dust filter, the blower and the exhaust fan are electrically connected with the host controller and the host controller controls the switching of the fresh air flow.
  • the sequence of the fresh air heat exchanger and the dust filter has the advantages of simple structure, convenient use, low energy consumption and high dust reduction efficiency.
  • Embodiment 1 is a flow chart of Embodiment 1 of a control method of the present invention.
  • Embodiment 2 is a flow chart of Embodiment 2 of the control method of the present invention.
  • Embodiment 3 is a flow chart of Embodiment 3 of the control method of the present invention.
  • Embodiment 4 is a flow chart of Embodiment 4 of the control method of the present invention.
  • Figure 5 is a schematic view showing the structure of the fresh air conditioning system of the present invention.
  • the air conditioning system includes a host controller 1, an outdoor temperature sensor 2, a fresh air heat exchanger 3, a dust filter 4, an air conditioner 5, a fresh air duct 6,
  • the exhaust duct 7, the blower 8 and the exhaust fan 9, the fresh air duct 6 is provided with a switching pipeline capable of switching the fresh air flowing through the fresh air heat exchanger 3 and the dust removing filter 4, and
  • FIG. 1 shows the flow of the control method.
  • the control method includes the following steps:
  • S1 The host is powered on and initialized
  • step S3 comparing the outdoor temperature t with the switching preset temperature t1, when t ⁇ t1, switching the fresh air heat exchanger 3 in front, the dust removing filter 4 is behind, when t>t1, switching the fresh air heat exchanger 3 in After the dust filter 4 is in front, the steps S2 and S3 are kept looping, and proceeds to step S4;
  • the outdoor temperature sensor 2 feeds back the detection signal to the host controller 1.
  • the host controller 1 compares the outdoor temperature t with the preset temperature t1, and the host controller 1 controls the switching according to the judgment result.
  • the fresh air flows through the sequence of the fresh air heat exchanger 3 and the dust filter 4, and when the fresh air passes through the dust filter 4 and the fresh air heat exchanger 3 in sequence, the fresh air is first purified and filtered, and then exchanged for cold and heat to avoid fresh air heat exchange.
  • the ash is accumulated in the device 3, thereby reducing the maintenance work on the fresh air heat exchanger 3, and greatly prolonging the service life of the fresh air heat exchanger 3.
  • Step S2 and step S3 are cyclically performed to ensure real-time detection, real-time judgment, real-time switching, and improvement of automation degree, and the method , Testing, Both the judgment and the switching steps greatly reduce the energy consumption before the power transmitting step of the blower 8 and the exhaust fan 9.
  • the preset preset temperature t1 is preset, wherein -20 ° C ⁇ t1 ⁇ -5 ° C, and the outdoor temperature t only needs to be compared with the t1. Easy to operate.
  • the fresh air heat exchanger 3 and the dust removing filter 4 are sequentially switched, the fresh air flows through the fresh air heat exchanger 3 by controlling the three-way electromagnetic switching valve provided on the switching pipe and the fresh air pipe 6 .
  • the sequence of the dust filter 4 the three-way electromagnetic switching valve is electrically connected to the host controller 1, and when the host controller 1 obtains the judgment result, the three-way electromagnetic switching valve is controlled to be turned on and off, thereby realizing the change of the new airflow.
  • the sequence of the fresh air heat exchanger 3 and the dust filter 4 is passed.
  • the flow of the second embodiment of the control method of the fresh air conditioning system of the present invention is substantially the same as that of the first embodiment, except that the dust filter 4 is an electrostatic dust filter.
  • the electrostatic precipitator filter is powered, that is, the electrostatic dust removal method can improve the dust removal efficiency.
  • the flow of the third embodiment of the control method of the fresh air conditioning system of the present invention is substantially the same as that of the first embodiment, except that the following steps are included:
  • S1 The host is powered on and initialized
  • step S4 comparing the outdoor temperature t with the switching preset temperature t1: when t ⁇ t1, switching the fresh air heat exchanger 3 in front and the dust removing filter 4 in the rear, when t>t1, switching the fresh air heat exchanger 3 in After the dust filter 4 is in front, the steps S3 and S4 are kept looping, and proceeds to step S5;
  • the blower 8 and the exhaust fan 9 are powered, and then the outdoor temperature t is compared with the preset temperature t1.
  • the fresh air heat exchanger 3 is switched, and the dust filter 4 is switched.
  • the dust filter 4 is in front, and the air conditioner 5 is finally turned on, and the fresh air flowing through the fresh air heat exchanger 3 and the dust filter 4 can also be switched.
  • steps S3 and S4 are cyclically performed to ensure real-time detection, real-time judgment, real-time switching, and improve the degree of automation, and in this method, the detection, judgment and switching steps are all After the power transmitting step of the blower 8 and the exhaust fan 9, it is ensured that air exchange can be performed indoors and outdoors after starting up, which is suitable for indoor air quality poorly and when indoor and outdoor air convection is urgently needed.
  • the flow of the fourth embodiment of the control method of the fresh air conditioning system of the present invention is basically the same as that of the third embodiment, except that the dust filter 4 is an electrostatic dust filter.
  • the electrostatic precipitator filter is powered, that is, the electrostatic dust removal method can improve the dust removal efficiency.
  • the air conditioning system includes a host controller 1, an outdoor temperature sensor 2, a fresh air heat exchanger 3, a dust filter 4, an air conditioner 5, a fresh air duct 6, and a row.
  • the air duct 7, the blower 8 and the exhaust fan 9, the fresh air duct 6 is provided with a switching pipeline capable of switching the fresh air flowing through the fresh air heat exchanger 3 and the dust removing filter 4, and the fresh air duct 6 and the exhaust duct 7 are arranged in the air conditioner.
  • the fresh air duct 6 is connected to the outdoor via the fresh air heat exchanger 3 and the dust removing filter 4, and the exhaust duct 7 is connected to the outdoor via the fresh air heat exchanger 3, and the blower 8 is arranged at the air supply opening of the fresh air duct 6, the exhaust fan 9
  • the outdoor temperature sensor 2 is disposed outside the air outlet of the exhaust duct 7, and the dust filter 4, the blower 8 and the exhaust fan 9 are electrically connected to the host controller 1 and the host controller 1 controls the switching of the fresh air through the fresh air heat.
  • the sequence of the exchanger 3 and the dust removing filter 4, that is, the fresh air can be switched on the fresh air duct 6, when the fresh air passes through the dust removing filter 4 and the fresh air heat exchanger 3 in sequence, the fresh air is first purified and filtered before being exchanged for hot and cold exchange.
  • the fresh air is first purified and filtered before being exchanged for hot and cold exchange.
  • Can avoid The ash is accumulated in the fresh air heat exchanger 3, thereby reducing the maintenance work on the fresh air heat exchanger 3, and greatly prolonging the service life of the fresh air heat exchanger 3, when the fresh air passes through the fresh air heat exchanger 3 and the dust filter 4 in turn,
  • the fresh air is first cooled and exchanged for re-purification and filtration, and is suitable for areas with extremely low outdoor temperatures in the north.
  • the fresh air duct 6 includes a first section air inlet duct 61, a middle section air inlet duct 62, and a last section air inlet duct 63.
  • the first section air inlet duct 61 is connected to the outdoor, and the blower 8 is located on the last section air inlet duct 63 and is adjacent to the air supply port, and the middle section is air inlet.
  • the tube 62 includes a first middle branch pipe 621 that sequentially connects the dust filter 4 and the fresh air heat exchanger 3, and a second middle pipe 622 that sequentially connects the fresh air heat exchanger 3 and the dust filter 4, in which fresh air is supplied from the first air inlet pipe 61 enters, is sent from the end section air duct 63 to the indoor, when the fresh air is in the middle section of the air duct 62, the flow direction can be switched between the first middle section branch pipe 621 and the second middle section branch pipe 622, when the fresh air flows from the first middle section branch pipe 621 When the air duct 63 is introduced into the end section, the fresh air passes through the dust filter 4 and the fresh air heat exchanger 3 in sequence.
  • the fresh air passes through the fresh air heat exchanger 3 and dust removal in sequence.
  • Filter 4 the fresh air is first exchanged for hot and cold exchange and then purified and filtered. It is suitable for extremely cold regions with large temperature difference in the north. It has simple structure and convenient use.
  • the first stage air inlet duct 61 is connected to the end air inlet duct 63 through the dust removing filter 4 and the fresh air heat exchanger 3 through the first middle section branch pipe 621, that is, the dust removing filter 4 and the fresh air heat exchanger 3 are located in the first middle section.
  • the dust removing filter 4 and the fresh air heat exchanger 3 are located in the first middle section.
  • the second middle branch pipe 622 includes a first inlet three-way electromagnetic switching valve 6221, a third intake three-way electromagnetic switching valve 6223, and a fourth inlet air, which are provided at the first middle branch pipe 621.
  • Three-way electromagnetic switching valve 6224 and second inlet three-way electromagnetic switching valve 6222 and fifth inlet three-way electromagnetic switching valve 6225 capable of switching inlets, first The air inlet three-way electromagnetic switching valve 6221 is disposed between the first middle branch pipe 621 and the first air inlet pipe 61, and the second air inlet three-way electromagnetic switching valve 6222 is disposed between the fresh air heat exchanger 3 and the dust removing filter 4, and the third The air inlet three-way electromagnetic switching valve 6223 is disposed between the fresh air heat exchanger 3 and the final air inlet pipe 63, and the fourth air inlet three-way electromagnetic switching valve 6224 is disposed in the second air inlet three-way electromagnetic switching valve 6222 and the dust filter.
  • the fifth inlet three-way electromagnetic switching valve 6225 is disposed between the third inlet three-way electromagnetic switching valve 6223 and the last stage inlet duct 63, and the first section of the inlet duct 61 passes through the first middle section branch 621 and sequentially passes through the first inlet three-way Electromagnetic switching valve 6221, second air inlet three-way electromagnetic switching valve 6222, fresh air heat exchanger 3, third air inlet three-way electromagnetic switching valve 6223, dust removing filter 4, fourth air inlet three-way electromagnetic switching valve 6224 and The five-inlet three-way electromagnetic switching valve 6225 is connected to the last stage air inlet pipe 63.
  • the first air inlet three-way electromagnetic switching valve 6221, the second air inlet three-way electromagnetic switching valve 6222, and the third air inlet three-way are connected.
  • the wind three-way electromagnetic switching valve 6225 controls the entrance and exit direction to realize the switching of the fresh air flow direction, and has a simple structure and a clever design.
  • the dust filter 4 is an electrostatic dust filter, and the electrostatic dust filter is connected with an inlet pipe 41 for cleaning and a drain pipe 42 for discharging sewage.
  • the inlet pipe 41 is provided with an inlet and outlet valve 411.
  • the drain pipe 42 is provided with a drain on-off valve 421, and the electrostatic precipitator filter is further provided with a water pump 43 for introducing water from the inlet pipe 41 into the electrostatic precipitator filter, and the electrostatic precipitator filter adopts electrostatic dust removal.
  • the utility model can purify and filter the fresh air, and can realize the function of removing the PM2.5 micro particles, and the cleaning of the dust removing component is the inlet and outlet water cleaning (may be spray cleaning or water storage type cleaning, in the embodiment, the water storage type cleaning)
  • the inlet pipe 41 on the electrostatic precipitator filter can be connected to an external water source, and then the pumping water pump 43 can be turned on to inject water from the inlet pipe 41 into the water storage zone of the electrostatic precipitator filter to clean the electrostatic precipitator assembly.
  • the accumulated water is discharged from the drain pipe 42, and the water inlet and outlet valve 411 is opened and closed to control the water injection amount, and then the water discharge and discharge valve 421 is opened and closed to realize the discharge of the water.
  • the water inlet pipe 41 on the electrostatic precipitator filter can be connected to the water pipe in the room itself, and the cleaning function of the electrostatic precipitator assembly can be realized in real time, and the structure is simple and convenient to use.

Abstract

La présente invention concerne un procédé et un système de commande pour un système de climatisation à élimination de pollution et à air frais. Le procédé comprend : S1 : la mise sous tension et l'initialisation d'une unité principale ; S2 : la détection de la température extérieure, t ; S3 : la comparaison de la température extérieure, t, avec une température de permutation prédéfinie, t1, la permutation d'un échangeur de chaleur à air frais (3) et d'un filtre à poussière (4) entre des positions avant/arrière, le maintien de la répétition de l'étape S2 et de l'étape S3 tout en procédant à l'étape S4 ; S4 : le démarrage d'un climatiseur ; S5 : la transmission de l'énergie à un ventilateur d'alimentation en air (8) et à un ventilateur d'évacuation d'air (9). Un autre procédé est tel que l'étape S5 du procédé précédent est avancée en tant qu'étape S2, tandis que les autres étapes sont repoussées. Le système comprend un dispositif de commande (1) d'unité principale, un capteur de température extérieure (2), et l'échangeur de chaleur à air frais (3). Un conduit d'air frais (6) est équipé d'une conduite de permutation capable de permuter l'ordre dans lequel l'air frais passe par l'échangeur de chaleur à air frais (3) et le filtre à poussière (4). Le capteur de température extérieure (2) est agencé à l'extérieur. Le filtre à poussière (4), le ventilateur d'alimentation en air (8), le ventilateur d'évacuation d'air (9) sont tous connectés électriquement au dispositif de commande (1) d'unité principale tandis que le dispositif de commande (1) d'unité principale commande la permutation de l'ordre dans lequel l'air frais passe par l'échangeur de chaleur à air frais (3) et le filtre à poussière (4).
PCT/CN2015/086722 2014-08-13 2015-08-12 Procédé et système de commande pour système de climatisation à élimination de pollution et à air frais WO2016023489A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410396841.9A CN105444331B (zh) 2014-08-13 2014-08-13 除霾新风空调系统的控制方法及系统
CN201410396841.9 2014-08-13

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WO2016023489A1 true WO2016023489A1 (fr) 2016-02-18

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