Multifunctional fresh air exchanger

A switch and multi-functional technology, which is applied in the field of multi-functional fresh air switches, can solve the problems of single operating mode of fresh air switches and cannot meet the diversified needs of customers, and achieve effective adjustment of indoor comfort, meet diversified needs, and flexible operating modes Effect

Inactive Publication Date: 2017-09-29
GUANGDONG NEDFON INDOOR AIR SYST TECH
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AI-Extracted Technical Summary

Problems solved by technology

However, the operation mode of the conventional fresh air switch is relatively single, which cannot meet the diversified needs of customers. As a result, in addition to installing the fres...
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Method used

[0029] As shown in Figure 6, Figure 6 is a schematic structural view of the heating device of the present invention. The heating device 30 includes a fixed seat 31, a heating assembly, a fixed cover 32 and a thermostat 33; wherein, the heating assembly includes a heating element frame 34 and a heating element 35; the heating element frame 34 is provided with a limiting groove and In the thermostat fixing hole, the heating element 35 is fixed in the limiting groove; the temperature controller 33 is insta...
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Abstract

The invention relates to a multifunctional fresh air exchanger comprising a fresh air mechanism and a dehumidifying mechanism. The fresh air mechanism communicates with the dehumidifying mechanism, and the fresh air mechanism is internally provided with a bypass device and a heating device and comprises a box body, a heat exchanging core body, an air exhauster, an air feeder, a fresh air isolating valve, an air exhausting isolating valve and an inner circulating air valve; the bypass device is arranged below the heat exchanging core body and communicates with an air returning cavity and an air exhausting cavity; the dehumidifying mechanism communicates with an air feeding port and comprises a crate and a dehumidifying system arranged in the crate; and the crate is further provided with an air outlet. The fresh air exchanger of the structure has four modes of the regular fresh air mode, the dehumidifying mode, the heating mode and the bypass mode, the modes can be flexibly switched according the indoor air condition, the indoor comfort degree can be kept, and the requirements of a user can be met.

Application Domain

Technology Topic

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  • Multifunctional fresh air exchanger
  • Multifunctional fresh air exchanger
  • Multifunctional fresh air exchanger

Examples

  • Experimental program(1)

Example Embodiment

[0025] Such as figure 1 with figure 2 As shown, figure 1 It is a schematic diagram of the structure of the multifunctional fresh air switch of the present invention and an air flow diagram in a conventional mode; figure 2 It is a schematic diagram of the structure of the multifunctional fresh air switch and the air flow diagram in the dehumidification and heating mode of the present invention. A multifunctional fresh air switch includes a fresh air mechanism and a dehumidification mechanism. The dehumidification mechanism and the fresh air mechanism are connected through pipelines. The fresh air mechanism is provided with a bypass device and a heating device 30.
[0026] Specifically, the fresh air mechanism includes a box body 1, a heat exchange core body 2, an exhaust fan 3, a blower 4, a fresh air isolation valve 5, an exhaust air isolation valve 6, an internal circulation air valve 7, a fresh air filter 8 and a return air filter. 器9; The heat exchange core 2 is set in the middle of the box 1 to recover the temperature and humidity in the return air to the fresh air side. Together with the four partitions 10, the interior of the box 1 is divided into four cavities The body includes a return air cavity, a fresh air cavity, an exhaust air cavity, and a supply air cavity; one side of the return air cavity is provided with a return air inlet 11, one side of the fresh air cavity is provided with a fresh air outlet 12, and one side of the exhaust cavity is provided with an exhaust The air outlet 13 is provided with an air outlet 14 on one side of the air supply cavity; the exhaust fan 3 is arranged in the air discharge cavity and connected to the air outlet 13, and the air blower 4 is arranged in the air supply cavity and is connected to the air outlet 14 Connection; the fresh air isolation valve 5 is set at the fresh air outlet 12; the exhaust air isolation valve 6 is set at the air outlet 13; the internal circulation air valve 7 is installed at the partition between the return air cavity and the supply air cavity On the board 10; the fresh air filter 8 is arranged in the fresh air cavity, close to the fresh air opening 12, and the return air filter 9 is arranged in the return air cavity, close to the air return opening 11. The heating device 30 is installed between the air outlet 14 and the outlet of the blower 4, and the bypass device is arranged in the box 1 and can communicate with the return air cavity and the exhaust air cavity.
[0027] Such as image 3 with Figure 4 As shown, image 3 Is a structural diagram of the dehumidification mechanism of the present invention; Figure 4 It is a schematic diagram of the dehumidification system of the present invention. The dehumidification mechanism includes a cabinet 21 and a dehumidification system in the cabinet 21, and the cabinet is provided with an outlet air port. The dehumidification system includes a compressor 22, a condenser 23, an evaporator 24, a filter drier 25, a throttling device 26, and system pipelines; the compressor 22, a condenser 23, a filter drier 25, and a throttling device 26 The evaporator 24 is connected end to end in sequence through the system pipeline to form a circulating dehumidification system.
[0028] In addition, such as Figure 5 As shown, Figure 5 It is a schematic diagram of the structure of the condensed water tray of the present invention. The dehumidification mechanism also includes a condensed water pan 27. The side of the condensed water pan 27 is provided with a clamping groove. The condenser 23 and the evaporator 24 are installed on the condensate pan 27 through the clamping groove, and the upper surface of the bottom is V-shaped, The drain 271 is opened at the lowest point of the V-shaped surface. The condenser 23 and the evaporator 24 are installed on the condensate pan 27, and the condensate pan 27 is used to collect the condensed water generated during the dehumidification process and drain it away in time. The condensate pan 27 is fixed with the condenser 23 and the evaporator 24 to form a part, and finally installed in the cabinet 21. The compressor 22 is installed at one end of the case 21 and connected to the condenser 23 and the evaporator 24 through the system pipeline. The filter drier 25 and the throttling device 26 are installed on the system pipeline between the outlet of the condenser 23 and the inlet of the evaporator 24. In the dehumidification mode, the compressor 22 discharges the compressed high-temperature and high-pressure refrigerant gas into the condenser 24. The heat of the high-temperature and high-pressure refrigerant is taken away by the air in the condenser 24 and becomes a high-pressure and medium-temperature refrigerant liquid, and then passes through the dry filter 25. It enters the throttling device 26, through the throttling and pressure reduction effect of the throttling device 26, it becomes a low-temperature and low-pressure liquid, and then enters the evaporator 24. The evaporator 24 absorbs the heat in the air so that the air temperature drops below the dew point and the water It is analyzed to realize the dehumidification function; the refrigerant in the evaporator 24 continuously absorbs heat and vaporizes, and finally forms a gas with a certain degree of superheat which is sucked by the compressor 22, compressed in the compressor 22 and discharged, and the above cycle is continued. The dehumidified air passes through the condenser 23, absorbs the heat in the condenser 23 to increase the temperature, and is finally sent into the room.
[0029] Such as Image 6 As shown, Image 6 It is a schematic diagram of the structure of the heating device of the present invention. The heating device 30 includes a fixed seat 31, a heating component, a fixed cover 32 and a thermostat 33; wherein, the heating component includes a heating body frame 34 and a heating body 35; the heating body frame 34 is provided with a limited slot and In the thermostat fixing hole, the heating element 35 is fixed in the limiting groove; the thermostat 33 is installed in the thermostat fixing hole. The fixing seat 31 is provided with an installation groove, and the heating component is embedded in the installation groove. The fixed cover plate 32 covers the outlet of the installation slot and covers the outlet of the installation slot and the temperature controller 33. In this embodiment, the fixing base 31 and the fixing cover 32 are made of special fireproof and insulating materials, which can effectively ensure the safety of the heating device 30 in use.
[0030] Such as Figure 7 with Figure 8 As shown, Figure 7 It is an exploded schematic diagram of the bypass device and the heat exchange core of the present invention; Figure 8 It is a schematic diagram of the structure of the bypass ventilation valve of the present invention. The bypass device includes a bypass ventilation duct and a bypass ventilation valve 41, which communicates with the return air cavity and the exhaust cavity, and the bypass ventilation valve is arranged at the air outlet of the bypass ventilation duct. In this embodiment, the The side ventilation duct includes two oppositely arranged bypass frames 42. One end of the two bypass frames 42 is connected with the bypass vent valve 41 to form an air outlet, and the other end is arranged opposite to form an air inlet; the two bypass frames 42 are installed on the heat exchange core. 2 At the bottom, the two bypass frames 42, the bottom surface of the heat exchange core 2 and the inner wall of the box 1 jointly form a side air duct. The side ventilation valve 41 includes a valve frame 411, a valve 412 and a stepping motor 413. The valve and the stepping motor 413 are jointly fixed on the valve frame 411, and the rotating shaft of the stepping motor 413 is connected to the valve 412. When the stepping motor 413 works, its rotating shaft drives the valve 412 to rotate, so as to realize the opening and closing of the bypass valve 41.
[0031] Working principle: In the normal mode, the dehumidification mechanism does not operate, the internal circulation air valve 7 is closed, and the fresh air isolation valve 5 and the exhaust air isolation valve 6 are both open; the outdoor fresh air enters from the fresh air outlet and passes through the fresh air filter 8, heat exchange The core 2 is then sent into the room through the blower 4; the indoor return air enters from the return air outlet 11, passes through the return air filter 9 and the heat exchange core 2 respectively, and is sucked in by the exhaust fan 3, and is discharged from the air outlet 13 to the outdoors.
[0032] In dehumidification mode, the exhaust fan 3 stops running, the internal circulation air valve 7 is opened, and the fresh air isolation valve 5 and the exhaust isolation 6 are closed; the indoor return air enters from the return air inlet 11, passes through the internal circulation air valve 7 and is sucked by the blower 4; dehumidification The mechanism is installed at the outlet of the blower 4 through a pipe connection, and the indoor return air is pressurized in the blower 4 and enters the dehumidification mechanism through the pipe.
[0033] The moisture in the air is precipitated when passing through the evaporator 24, and is collected in the condensed water pan 27 at the bottom of the evaporator 24 under the action of gravity. The side of the condensate pan 27 is provided with a slot and a mounting hole for fixing the condenser 23 and the evaporator 24. The bottom of the condensate pan 27 is provided with a V-shaped double-sided inclined drainage area. A drainage outlet 271 is provided downstream of the lowest point of the drainage area. The condensate can be fast , Effectively gather in the drainage area and flow to the drainage outlet, and drain through the external drainage pipe.
[0034] In the heating mode, the exhaust fan 3 stops running, the internal circulation air valve 7 is opened, and the fresh air isolation valve 5 and the exhaust air isolation valve 6 are closed; the indoor return air enters from the return air outlet 11 and does not pass through the return air filter 9 The heat exchange core 2 is sucked by the blower 4 after passing through the internal circulation air valve 7; it is pressurized in the blower 4 and then sent out, and then passes through the heating device 30 installed in the air outlet 14, and absorbs heat in it to heat up to the setting After setting the temperature, it was sent into the room.
[0035] In the bypass mode, the heating device 30 and the dehumidification module do not operate, the internal circulation air valve 7 is closed, and the bypass ventilation valve 41, the fresh air isolation valve 5 and the exhaust air isolation valve 6 are all open; the outdoor fresh air still operates in the normal mode, and the indoor air The return air enters from the return air outlet, after passing through the return air filter 9, such as Picture 9 As shown, Picture 9 It is a flow diagram of the air in the bypass duct in the bypass mode of the present invention. It is short-circuited until the bypass ventilation valve 41 passes, and is sucked by the exhaust fan 3, and finally discharged from the exhaust port 13 to the outside.
[0036] Compared with the prior art, the multifunctional fresh air switch of the present invention has a dehumidification mechanism, a heating device and a bypass device, and can turn on four operating modes. The dehumidification function can be turned on when the indoor humidity is high; when the indoor temperature is low You can turn on the heating mode when you need to increase the ventilation efficiency; you can turn on the bypass mode when you need to improve the ventilation efficiency; when the indoor air is more comfortable, it can be adjusted to the regular fresh air mode. Its operating mode is flexible, meeting the diverse needs of users, and effectively adjusting indoor comfort.
[0037] The above-mentioned embodiments only express several embodiments of the present invention, and the descriptions are more specific and detailed, but they should not be understood as limiting the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all fall within the protection scope of the present invention.
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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