Household isothermal air supply, dehumidification and purification integrated fresh air handling unit

Abstract

The household isothermal air supply, dehumidification and purification integrated fresh air handling unit comprises a fresh air cavity, an air return cavity and a control box which are arranged in a machine shell, a fresh air opening and an air supply opening are formed in the two ends of the fresh air cavity respectively, and an indoor air return opening and an exhaust opening are formed in the two ends of the air return cavity respectively; a filter assembly, an evaporator, a reheater and an air feeder are sequentially arranged in the fresh air cavity between the fresh air opening and the air supply opening. A condenser and a compressor are sequentially arranged in the air return cavity between the indoor air return opening and the air exhaust opening. An air return valve is arranged on one side of the air return cavity between the condenser and the exhaust outlet, and one side of the fresh air cavity between the evaporator and the filter assembly is communicated with the air return valve; according to the air conditioner, the air return cavity is used for exhausting air outwards to exhaust heat generated in the condensation and dehumidification process to the outside, temperature change cannot be caused during dehumidification, and independent control over the temperature and the humidity is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of fresh air equipment, and in particular relates to a household isothermal air supply, dehumidification and purification integrated fresh air unit. Background Art

[0002] In the high humidity environment of the southern region with hot summers and warm winters, especially in the spring when the south wind blows, the temperature and humidity rise suddenly, the temperature rises to above 20℃, and the humidity rises to above 80%, which can easily cause indoor moisture and discomfort.

[0003] The traditional solution is to turn on the air conditioner for dehumidification. However, the cold air sent out by the air conditioner in the outdoor environment will cause discomfort. There are also independent dehumidifiers. The dehumidifiers are installed on the ground and take up indoor space. The water tank needs to be emptied regularly, which is inconvenient to use and cannot dehumidify the entire room. In addition, conventional fresh air dehumidification fans use heating to dehumidify, and the indoor temperature will continue to rise, which can easily cause the indoor temperature to be too high and cause thermal discomfort. They are mostly suitable for basements.

[0004] Therefore, it is necessary to design an integrated fresh air unit to solve the above technical problems. Summary of the Invention

[0005] In response to the deficiencies in the prior art, the present invention provides a household isothermal air supply, dehumidification and purification integrated fresh air unit that achieves isothermal air supply, avoids the discomfort caused by hot and cold weather to indoor occupants, and realizes independent control of indoor temperature and humidity.

[0006] The technical solution of the present invention is: a household isothermal air supply, dehumidification and purification integrated fresh air unit, comprising: a fresh air cavity, a return air cavity and a control box arranged inside the casing, a fresh air inlet and an air supply inlet respectively arranged at both ends of the fresh air cavity, an indoor return air inlet and an exhaust outlet respectively arranged at both ends of the return air cavity; a filter assembly, an evaporator, a reheater and a blower are sequentially arranged inside the fresh air cavity between the fresh air inlet and the air supply inlet; a condenser and a compressor are sequentially arranged inside the return air cavity between the indoor return air inlet and the exhaust outlet; the return air cavity between the condenser and the exhaust outlet A return air valve is provided on one side of the air cavity, and one side of the fresh air cavity between the evaporator and the filter assembly is connected to the return air valve; a fresh air sensor is provided between the filter assembly and the fresh air outlet, a return air sensor is provided between the indoor return air outlet and the condenser, and an air supply sensor is provided between the blower and the air supply outlet. The fresh air sensor, return air sensor and air supply sensor are all connected to the control box, and the fresh air sensor, return air sensor and air supply sensor are used to monitor air quality data including PM2.5, CO2 concentration, temperature and humidity.

[0007] Furthermore, the household isothermal air supply, dehumidification and purification integrated fresh air unit also includes a heat recovery heat pipe assembly; the heat recovery heat pipe assembly has a heat recovery heat pipe section A and a heat recovery heat pipe section B connected together, the heat recovery heat pipe section A is arranged between the condenser and the indoor return air outlet, and the heat recovery heat pipe section B is arranged between the evaporator and the return air valve.

[0008] Furthermore, the filter assembly comprises a primary filter, a variable resistance electrostatic filter and a high efficiency filter which are sequentially arranged along the airflow direction.

[0009] Furthermore, the variable resistance electrostatic filter has a charged wire layer and a dust collecting plate layer arranged in sequence along the airflow direction, and the charged wire layer and the dust collecting plate layer have opposite charges; the charged wire layer has evenly arranged charged wires, and the dust collecting plate layer has evenly arranged and parallel dust collecting plates, and through holes are evenly opened on the dust collecting plates, and the dust collecting plates are connected to a driving mechanism for adjusting their angles to change the airflow resistance.

[0010] Furthermore, the variable resistance electrostatic filter also includes a support frame, and the charged wire layer and the dust collecting plate layer are arranged in sequence inside the support frame along the airflow direction; the middle parts of the two ends of the dust collecting plate are rotatably connected to the inner sides of the support frame; the driving mechanism has a driving rod slidably arranged on both sides of the inner side of the support frame, and the top of the support frame is provided with an electric actuator that drives the driving rod to move up and down, and the end of the dust collecting plate is rotatably connected to the corresponding driving rod.

[0011] Furthermore, an exhaust fan is provided inside the return air cavity at one end close to the exhaust port.

[0012] Furthermore, air valves are provided on the exhaust vent and the fresh air vent.

[0013] Furthermore, a first inspection door and a second inspection door are provided on one side of the casing, a dust collecting and water collecting tray is provided at the bottom of the casing, a condensation drain port is provided at one end of the dust collecting and water collecting tray, and the dust collecting and water collecting tray is inclined toward the condensation drain port.

[0014] Furthermore, the household isothermal air supply, dehumidification and purification integrated fresh air unit also includes a hand operator, which is communicatively connected to the control box.

[0015] Furthermore, the household isothermal air supply, dehumidification and purification integrated fresh air unit also includes a multi-parameter indoor environment monitor, and the multi-parameter indoor environment monitor is communicatively connected to the handheld operator.

[0016] Beneficial effects of the present invention:

[0017] (1) In the present invention, the heat generated during the condensation and dehumidification process is discharged outdoors by using the return air cavity to exhaust air outwards, and the temperature will not change during dehumidification, thereby achieving independent control of temperature and humidity. This solves the technical problem that traditional integrated dehumidification units heat the air while dehumidifying, and after increasing the supply air temperature, the indoor air temperature gradually rises, causing human discomfort.

[0018] (2) After the outdoor air is filtered by the filter assembly and passes through the evaporator, the gaseous water in the outdoor fresh air condenses into liquid water through the cold surface of the evaporator, achieving dehumidification and cooling effects. The dehumidified and cooled outdoor fresh air then passes through the reheater to appropriately increase the supply air temperature. The heating amount of the reheater is controlled according to the monitoring data of the supply air sensor to ensure that the supply air temperature is consistent with the indoor return air temperature, thereby achieving isothermal air supply and dehumidification without affecting the indoor temperature. Finally, the indoor fresh air is sent into the room with the humidity, temperature and cleanliness processed under the action of the blower, improving the air quality of the indoor environment and reducing humidity;

[0019] (3) Indoor air enters the unit from the indoor return air vent, and its state parameters (PM2.5, CO2 concentration, temperature and humidity, etc.) are detected by the return air sensor and transmitted to the data processing module in the control box. After the return air enters the unit, the indoor return air is heated by the condenser and finally discharged to the outside through the exhaust vent.

[0020] (4) When dehumidification is not required, the return air valve can be opened and the indoor air can return to the room through the return air valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the internal structure of the household isothermal air supply, dehumidification and purification integrated fresh air unit in the present invention.

[0022] Figure 2 This is a schematic diagram of the external structure of the household isothermal air supply, dehumidification and purification integrated fresh air unit in the present invention.

[0023] Figure 3 This is one of the structural schematic diagrams of the variable resistance electrostatic filter in the present invention.

[0024] Figure 4 This is the second structural diagram of the variable resistance electrostatic filter in the present invention. DETAILED DESCRIPTION

[0025] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present invention, its application, or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully convey the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0026] The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are simply used to distinguish different parts. Terms such as "include" or "comprising" mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0027] like Figure 1 As shown, the household isothermal air supply, dehumidification and purification integrated fresh air unit includes: a fresh air cavity, a return air cavity and a control box 12 arranged inside the casing 31, a fresh air inlet 8 and an air supply outlet 21 are respectively provided at both ends of the fresh air cavity, and an indoor return air inlet 1 and an exhaust outlet 6 are respectively provided at both ends of the return air cavity; a filter component, an evaporator 17, a reheater 18 and a blower 20 are sequentially arranged inside the fresh air cavity between the fresh air inlet 8 and the air supply outlet 21; a condenser 3 and a compressor 4 are sequentially arranged inside the return air cavity between the indoor return air inlet 1 and the exhaust outlet 6; the return air cavity between the condenser 3 and the exhaust outlet 6 A return air valve 13 is provided on one side of the body, and the side of the fresh air cavity between the evaporator 17 and the filter assembly is connected to the return air valve 13; a fresh air sensor 7 is provided between the filter assembly and the fresh air outlet 8, a return air sensor 22 is provided between the indoor return air outlet 1 and the condenser 3, and a supply air sensor 19 is provided between the blower 20 and the supply air outlet 21. The fresh air sensor 7, the return air sensor 22 and the supply air sensor 19 are all connected to the control box 12. The fresh air sensor 7, the return air sensor 22 and the supply air sensor 19 are used to monitor air quality data including PM2.5, CO2 concentration, temperature and humidity.

[0028] In the above embodiment, after the outdoor air is filtered by the filter assembly and passes through the evaporator 17, the gaseous water in the outdoor fresh air condenses into liquid water through the cold surface of the evaporator 17, achieving dehumidification and cooling effects. The outdoor fresh air after dehumidification and cooling passes through the reheater 18 to appropriately increase the supply air temperature. The heating amount of the reheater 18 is controlled according to the monitoring data of the supply air sensor 19, so as to ensure that the supply air temperature and the indoor return air temperature are consistent, thereby achieving isothermal air supply, dehumidification without affecting the indoor temperature. Finally, under the action of the blower 20, the indoor fresh air with processed humidity, temperature and cleanliness is sent into the room Indoor air quality is improved and humidity is reduced. The indoor air enters the unit from the indoor return air inlet 1, and its state parameters (PM2.5, CO2 concentration, temperature and humidity, etc.) are detected by the return air sensor 22, and the data is transmitted to the data processing module in the control box 12. After the return air (the temperature under the indoor air-conditioning environment is about 26°C) enters the unit, the indoor return air is then heated by the condenser 3 and finally discharged to the outside through the exhaust port 6. If dehumidification is not required, the return air valve 13 can be opened, and the indoor air can also return to the room again through the return air valve 13.

[0029] In the above embodiment, the evaporator 17, the condenser 3 and the compressor 4 constitute a refrigeration and dehumidification circuit, and an expansion valve is further connected between the evaporator 17 and the condenser 3 in the refrigeration and dehumidification circuit.

[0030] In some embodiments, a household isothermal air supply, dehumidification and purification integrated fresh air unit also includes a heat recovery heat pipe assembly; the heat recovery heat pipe assembly has a heat recovery heat pipe section A 2 and a heat recovery heat pipe section B 16 connected together, the heat recovery heat pipe section A 2 is arranged between the condenser 3 and the indoor return air outlet 1, and the heat recovery heat pipe section B 16 is arranged between the evaporator 17 and the return air valve 13; the indoor air enters the unit from the indoor return air outlet 1, and first passes through the heat recovery heat pipe section A 2 for heat exchange, and the cold energy in the low-temperature indoor return air enters the heat recovery heat pipe section B 16 through the pipeline, and heat exchange is performed between the heat recovery heat pipe section B 16 and the high-temperature fresh air coming in from the outside, thereby recovering the cold energy of the indoor return air, thereby achieving the purpose of energy saving.

[0031] In some embodiments, the filter assembly includes a primary filter 9, a variable resistance electrostatic filter 10, and a high efficiency filter 11, which are sequentially arranged along the airflow direction.

[0032] As a specific implementation of the variable resistance electrostatic filter 10 in the above embodiment, Figure 3 and 4As shown, the variable resistance electrostatic filter 10 has a charged wire layer and a dust collecting plate layer arranged in sequence along the airflow direction, and the charged wire layer and the dust collecting plate layer have opposite charges; the charged wire layer has evenly arranged charged wires 27, and the dust collecting plate layer has evenly arranged and parallel dust collecting plates 28, and the dust collecting plates 28 are evenly provided with through holes. The dust collecting plates 28 are connected to a driving mechanism for adjusting their angles to change the airflow resistance. By adjusting the angle of the dust collecting plates 28 by the driving mechanism, the resistance of the dust collecting plates 28 to the airflow can be adjusted, and the airflow resistance inside the fresh air cavity can be changed according to the outdoor particulate matter concentration, which can reduce the operating energy consumption of the unit; the charged wire 27 is connected to the positive electrode, which can allow the particulate matter in the air to be positively charged, and the dust collecting plate 28 is connected to the negative electrode to capture the positively charged particulate matter in the outdoor fresh air.

[0033] Furthermore, the variable resistance electrostatic filter 10 also includes a support frame 30, and the interior of the support frame 30 is sequentially provided with a charged wire layer and a dust collecting plate layer along the airflow direction; the middle parts of the two ends of the dust collecting plate 28 are rotatably connected to the inner sides of the support frame 30; the driving mechanism has a driving rod 291 slidably arranged on both sides of the interior of the support frame 30, and the top of the support frame 30 is provided with an electric actuator 29 that drives the driving rod 291 to move up and down, and the end of the dust collecting plate 28 is rotatably connected to the corresponding driving rod 291; the electric actuator 29 drives the driving rod 291 to move up and down, and the driving rod 291 drives the dust collecting plate 28 to rotate within the range of 0° to 90°; when the fresh air sensor 7 detects that the concentration of air particulate matter exceeds 150μg / m 3 When the electric actuator 29 is in motion, the dust collecting plate 28 is kept at an angle perpendicular to the airflow direction to capture more particles. At this time, the airflow resistance is the largest. When the concentration of air particles detected by the fresh air sensor 7 is less than 35μg / m 3 When the dust collecting plate 28 is kept parallel to the airflow direction, the electric actuator 29 moves under the instruction of the control box 12, and the airflow resistance is minimized. The particle concentration is between 35 and 150 μg / m 3 When the dust collecting plate 28 is kept in proportion to the airflow direction within the range of 0 to 90 degrees; the airflow resistance through the variable resistance electrostatic filter 10 is changed according to the outdoor particulate matter concentration, which can reduce the operating energy consumption of the unit.

[0034] In some embodiments, an exhaust fan 5 is provided at one end of the return air cavity near the exhaust port 6 , and the exhaust fan 5 can improve the efficiency of exhausting air outward from the exhaust port 6 .

[0035] In some embodiments, both the exhaust port 6 and the fresh air port 8 are provided with air valves; the air valve of the exhaust port 6 can control the size of the exhaust air volume; the air valve of the fresh air port 8 can control the size of the fresh air volume.

[0036] In some embodiments, as Figure 2As shown, a first inspection door 23 and a second inspection door 25 are provided on one side of the casing 31. The first inspection door 23 and the second inspection door 25 are mainly used for replacing and maintaining the filter assembly and the control box 12; a dust collecting and water collecting tray 24 is provided at the bottom of the casing 31. The dust collecting and water collecting tray 24 is used to receive condensed water. A condensation drain port 26 is provided at one end of the dust collecting and water collecting tray 24. The dust collecting and water collecting tray 24 is inclined toward the condensation drain port 26, which is conducive to the discharge of condensed water.

[0037] In some embodiments, the household isothermal air supply, dehumidification and purification integrated fresh air unit also includes a handheld operator 15, which is communicatively connected to the control box 12; the data collected by the control box 12 is transmitted to the control handheld operator 15 via a wired manner, and the user can control the start and stop of the unit, the temperature and humidity setting values, and understand the current operating status of the fresh air fan through the control handheld operator 15.

[0038] In some embodiments, the household isothermal air supply, dehumidification and purification integrated fresh air unit also includes a multi-parameter indoor environment monitor 14, which is communicatively connected to the handheld operator 15; the multi-parameter indoor environment monitor 14 can sense the indoor PM2.5, CO2 concentration, temperature and humidity, etc., and feed back the monitoring data to the control handheld operator 15; specifically, the multi-parameter indoor environment monitor 14 is communicatively connected to the handheld operator 15 to establish a connection and transmit data via wireless communication.

[0039] Thus far, various embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details well known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0040] The above-described embodiments represent only some embodiments of the present invention. Although the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be based on the appended claims.

Claims

1. A household isothermal air supply, dehumidification and purification integrated fresh air unit, characterized in that: include: A fresh air cavity, a return air cavity and a control box are arranged inside the casing, wherein the two ends of the fresh air cavity are respectively provided with a fresh air inlet and an air supply outlet, and the two ends of the return air cavity are respectively provided with an indoor return air inlet and an air exhaust outlet; The fresh air cavity between the fresh air inlet and the air supply outlet is provided with a filter assembly, an evaporator, a reheater and a blower in sequence; A condenser and a compressor are sequentially arranged inside the return air cavity between the indoor return air inlet and the exhaust air outlet; A return air valve is provided on one side of the return air cavity between the condenser and the exhaust port, and a side of the fresh air cavity between the evaporator and the filter assembly is connected to the return air valve; A fresh air sensor is arranged between the filter assembly and the fresh air outlet, a return air sensor is arranged between the indoor return air outlet and the condenser, and an air supply sensor is arranged between the blower and the air supply outlet. The fresh air sensor, return air sensor and air supply sensor are all connected to the control box. The fresh air sensor, return air sensor and air supply sensor are used to monitor air quality data including PM2.5, CO2 concentration, temperature and humidity.

2. The household isothermal air supply, dehumidification and purification integrated fresh air unit according to claim 1 is characterized by: Also included is a heat recovery heat pipe assembly; The heat recovery heat pipe assembly comprises a heat recovery heat pipe section A and a heat recovery heat pipe section B connected together. The heat recovery heat pipe section A is arranged between the condenser and the indoor return air outlet, and the heat recovery heat pipe section B is arranged between the evaporator and the return air valve.

3. The household isothermal air supply, dehumidification and purification integrated fresh air unit according to claim 1 is characterized by: The filter assembly comprises a primary filter, a variable resistance electrostatic filter and a high efficiency filter which are sequentially arranged along the air flow direction.

4. The household isothermal air supply, dehumidification and purification integrated fresh air unit according to claim 3 is characterized by: The variable resistance electrostatic filter comprises a charged wire layer and a dust collecting plate layer sequentially arranged along the airflow direction, wherein the charged wire layer and the dust collecting plate layer have opposite charges; The charged wire layer has evenly arranged charged wires, the dust collecting plate layer has evenly arranged and parallel dust collecting plates, through holes are evenly opened on the dust collecting plates, and a driving mechanism is connected to the dust collecting plates for adjusting their angles to change the airflow resistance.

5. The household isothermal air supply, dehumidification and purification integrated fresh air unit according to claim 4 is characterized by: The variable resistance electrostatic filter further comprises a support frame, wherein the charged wire layer and the dust collecting plate layer are sequentially arranged inside the support frame along the airflow direction; The middle parts of both ends of the dust collecting plate are rotatably connected to the inner sides of the support frame; The driving mechanism has driving rods slidably arranged on both sides of the support frame. The top of the support frame is provided with an electric actuator that drives the driving rods to move up and down. The ends of the dust collecting plates are rotatably connected to the corresponding driving rods.

6. The household isothermal air supply, dehumidification and purification integrated fresh air unit according to claim 1 is characterized by: An exhaust fan is provided at one end of the return air cavity close to the exhaust port.

7. The household isothermal air supply, dehumidification and purification integrated fresh air unit according to claim 1 is characterized by: Air valves are provided on the air outlet and the fresh air outlet.

8. The household isothermal air supply, dehumidification and purification integrated fresh air unit according to claim 1 is characterized by: A first inspection door and a second inspection door are provided on one side of the casing, a dust collecting and water receiving tray is provided at the bottom of the casing, a condensation drain port is provided at one end of the dust collecting and water receiving tray, and the dust collecting and water receiving tray is inclined toward the condensation drain port.

9. The household isothermal air supply, dehumidification and purification integrated fresh air unit according to claim 1 is characterized by: It also includes a hand operator, which is communicatively connected to the control box.

10. The household isothermal air supply, dehumidification and purification integrated fresh air unit according to claim 9, characterized in that: It also includes a multi-parameter indoor environment monitor, which is communicatively connected to the handheld operator.

Images