Chamber fresh air device and fresh air system with same

Abstract

The utility model belongs to the technical field of ventilation devices, and particularly relates to a compartment fresh air device convenient to maintain and capable of controlling temperature and humidity and a fresh air system for uniformly controlling and managing all the compartment fresh air devices. Aiming at providing a fresh air system easy to maintain in a building in the prior art, the utility model provides a compartment fresh air device convenient to maintain and capable of controlling temperature and humidity, which comprises a first shell and a second shell which are connected with each other, and a fan air outlet is arranged between the connecting surfaces of the first shell and the second shell. The first shell is provided with an air inlet valve port and an air return valve port matched with a simple filtering device; a purification cavity and a fan are further arranged in the first shell, the fan is located in the purification cavity and connected with an air outlet of the fan, the second shell is provided with a fresh air outlet, and an air temperature and humidity adjusting device is arranged in the second shell. The fresh air devices in all the compartments are controlled by the fresh air system in a centralized mode, separate maintenance is facilitated, the structure is simple, and the use efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ventilation devices, and in particular relates to a chamber fresh air device and a fresh air system provided with the chamber fresh air device. Background Art

[0002] In large buildings, a centrally controlled fresh air system with adjustable humidity is generally used to achieve centralized air supply. The traditional fresh air system has a complex structure. Once any functional failure occurs, all air supply areas will lose their functions and indoor fresh air effect. However, if each fresh air zone is equipped with an independent fresh air system, it will involve problems such as drilling holes in the installation area and the equipment being too large, which is not conducive to the overall layout. Therefore, it is urgent to provide a fresh air system with a simple structure and easy maintenance, which can meet the advantages of simple construction, convenient maintenance and better integration into the building.

[0003] For example, a Chinese utility model patent discloses a fresh air system for urban buildings (application number: 202211412284.6), which includes a pipe group, a total heat exchanger and a purification device. The total heat exchanger is used for heat exchange between indoor air and outdoor air, and during the flow of indoor air in the total heat exchanger, the flow velocity is reduced and mixed at a preset distance, thereby improving the heat exchange efficiency of the total heat exchanger. The purification device is used to purify the outdoor air, and the purification effect and purification efficiency of the purification device change adaptively with the outdoor air quality. The purification device adopts a filter cloth filtering method, and can automatically replace the filter cloth that has been filtering for a preset time with a new filter cloth on the cloth drum. Each roll of filter cloth can be used for a long time and a long number of times, and after each roll of filter cloth is used up, two adjacent purification units are separated by a spring, and the space area reserved for replacement is large, which is conducive to filter cloth replacement.

[0004] Although this utility model patent provides a building fresh air system, it still centrally processes the air before supplying it through the duct module, so it still does not solve the above-mentioned problem. Utility Model Content

[0005] The purpose of the utility model is to provide a room-dividing fresh air device which is easy to maintain and can control temperature and humidity in order to solve the above problems.

[0006] Another object of the utility model is to provide a fresh air system with a compartment fresh air device that is easy to maintain and can control temperature and humidity in order to solve the above-mentioned problem.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a chambered fresh air device, including a first shell and a second shell that are connected to each other, a fan outlet is provided between the connecting surfaces of the first shell and the second shell, the first shell is provided with an air inlet valve and a return air valve with a simple filtering device; the first shell also includes a purification chamber and a fan, the fan is located in the purification chamber and connected to the fan outlet, the second shell is provided with a fresh air outlet, and the second shell is provided with a gas temperature and humidity regulating device.

[0009] A chamber fresh air device as described above is characterized in that: the gas temperature and humidity regulating device includes a first heat exchange component with a first water inlet and a first water outlet opened in the second shell, the first water inlet is connected to an electronic three-way valve, and one end of the electronic three-way valve is connected to the cooling water network.

[0010] In the compartment fresh air device as described above, a condensate receiving pan is provided at the bottom of the second shell, and a condensate outlet connected to the condensate receiving pan is opened in the second shell.

[0011] A chambered fresh air device as described above, the gas temperature and humidity regulating device also includes a second heat exchange component with a second water inlet and a second water outlet opened in the second shell, the second water inlet is connected to hot water, a one-way control valve is connected in front of the water inlet, and the bypass port of the electronic three-way valve of the first heat exchange component is connected to the side of the one-way control valve close to the water inlet.

[0012] In a chambered fresh air device as described above, the purification chamber includes an ultraviolet disinfection chamber and a filter assembly, the filter assembly is located on the side closer to the air inlet valve, the fan is located in the ultraviolet disinfection chamber, and the ultraviolet disinfection chamber is also provided with a temperature and humidity sensor device.

[0013] In the chambered fresh air device as described above, the portion of the filter assembly closest to the air inlet valve port is a primary filter, the second layer is activated carbon, and the third layer is a high-efficiency filter.

[0014] A compartment fresh air device as described above, wherein the compartment fresh air device has an automatic and manually set manual automatic control system.

[0015] As described above, in a chamber fresh air device, the first shell and the second shell are externally provided with thermal insulation cotton.

[0016] A fresh air system comprises the above-mentioned chamber fresh air device, a centralized cold and hot water supply system, and a central control system, wherein the centralized cold and hot water supply system is connected to a corresponding gas temperature and humidity regulating device.

[0017] In a fresh air system as described above, the central control system can supervise and control the operation of the room-specific fresh air devices, and can control and adjust the centralized hot and cold water supply system according to the overall operating conditions.

[0018] Compared with the existing technology, the advantages of the utility model are:

[0019] 1. The utility model distributes most of the structure of the fresh air system to the chamber fresh air device, which is relatively independent of the overall fresh air system except for the gas temperature and humidity adjustment device, and is easy to maintain and manage.

[0020] 2. The air temperature, humidity and air volume of the fresh air system provided by the utility model can be controlled individually and centrally, which improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the internal structure of Example 1;

[0023] Figure 3 This is a schematic diagram of the internal structure of Embodiment 1 from another angle;

[0024] Figure 4 It is a schematic diagram of the internal structure of Example 2;

[0025] Figure 5 It is a structural schematic diagram of Example 3;

[0026] In the figure: the first shell a, the second shell b, the fan 1, the gas temperature and humidity regulating device 2, the electronic three-way valve 3, the one-way control valve 4, the air inlet valve a1, the return air valve a2, the fresh air outlet b1, the condensate receiving tray b2, the condensate outlet b3, the fan outlet ab1, the thermal insulation cotton ab2, the first water inlet 21a, the first water outlet 21b, the second water inlet 22a, the second water outlet 22b, the ultraviolet disinfection chamber a11, the filter assembly a12, the primary filter a121, the activated carbon a122, and the high efficiency filter a123. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] Example 1

[0029] This embodiment provides a room-dividing fresh air device, such as Figure 1-3 As shown, an overall appearance uses interconnected external insulation cotton ab2 to maintain a first shell a and a second shell b with a stable internal temperature.

[0030] A fan outlet ab1 is provided between the connecting surfaces of the first shell a and the second shell b. The first shell a is provided with an air inlet valve a1 and a return air valve a2 connected to the indoor space and equipped with a simple filtering device. The air inlet valve a1 can be flexibly connected to a pipeline leading to the outdoors according to the building layout. The first shell a also includes a purification chamber and a fan 1. The fan 1 is located in the purification chamber and connected to the fan outlet ab1. The second shell b is provided with a fresh air outlet b1 and a gas temperature and humidity regulating device 2.

[0031] The gas temperature and humidity regulating device 2 includes a first heat exchange component 21 with a first water inlet 21a and a first water outlet 21b in the second shell. The first water inlet 21a of the first heat exchange component 21 is connected to an electronic three-way valve 3. One end of the electronic three-way valve 3 is connected to the cooling water network, and the other end is connected to the first water inlet 21a. The bypass can be used to drain water to test the cooling water temperature. Under normal circumstances, this sub-chamber fresh air device adopts a conventional internal circulation and timed external circulation mode. The shutter valve of the return air valve port a2 is in an open mode during the internal circulation, the air inlet valve port a1 is closed, and the internal fan 1 works to generate a pressure difference to draw in indoor air. The air is first filtered by the simple filter device behind the return air valve port a2, and then passes through the components of the filter component a12 in turn, and reaches the second shell b through the fan outlet ab1 connected to the fan 1. After condensation and dehumidification by the first heat exchange component 21, it is re-output to the room through the fresh air outlet b1. The built-in control system of the room-dividing fresh air device (not shown in the figure) can automatically adjust the opening and closing degree of the shutter valve and the air volume of the fan according to the settings or built-in model to change the air volume.

[0032] In the external circulation mode, the return air valve a2 is normally closed, the inlet air valve a1 is open, and the air flow path is consistent with the internal circulation.

[0033] Except for the first heat exchange component 21 used for condensation, the other components are independent and compact, easy to disassemble and maintain, and will not affect the operation of similar devices in other compartments.

[0034] Example 2

[0035] This embodiment provides a room-divided fresh air device, and the same parts as those in Embodiment 1 are not described again. In view of the problem of low temperature in winter, if the condensation dehumidification method is directly adopted, the air temperature will be further reduced, resulting in a poor user experience. Therefore, it is necessary to optimize the structure and increase the temperature of the purified air.

[0036] like Figure 4 As shown, in order to optimize the user experience, the utility model is provided with a second heat exchange component 22. The second heat exchange component 22 is connected to a hot water pipeline through a one-way valve 4. The water inlet of the first heat exchange component 21 is connected to an electronic three-way valve 3, and the bypass port of the electronic three-way valve 3 is connected to the side of the one-way control valve 4 close to the second water inlet 22a.

[0037] In summer, the electronic bypass valve 3 connecting the second heat exchange component 22 and the water outlet of the first heat exchange component 21 is opened for bypass, and the one-way control valve 4 is closed, and cooling water is passed into the first heat exchange component 21 and the second heat exchange component 22 for cooling and dehumidification.

[0038] In winter, the one-way control valve 4 is opened, hot water is introduced into the second heat exchange component 22, and the second heat exchange component 22 heats the air. The electronic three-way valve 3 of the first heat exchange component 21 is bypassed and closed, and cold water is introduced to condense and dehumidify the air heated by the second heat exchange component 22. In this way, the temperature after dehumidification will not be too low, making the air outlet in winter more suitable.

[0039] Example 3

[0040] This embodiment provides a fresh air system, such as Figure 5 As shown, the compartment fresh air device recorded in Example 1 or Example 2, the supporting centralized cold and hot water supply system and the central control system together constitute a fresh air system. The central control system can monitor and control each compartment fresh air device, and can also manually control or control the water flow and water temperature of the centralized cold and hot water supply system according to the model.

[0041] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0042] Although the terms such as first housing a, second housing b, purification chamber, fan 1, gas temperature and humidity regulating device 2, electronic three-way valve 3, one-way control valve 4, air inlet valve a1, return air valve a2, fresh air outlet b1, condensate receiving tray b2, condensate outlet b3, fan outlet ab1, insulation cotton ab2, first water inlet 21a, first water outlet 21b, second water inlet 22a, second water outlet 22b, ultraviolet disinfection chamber a11, filter assembly a12, primary filter a121, activated carbon a122, high efficiency filter a123 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A room-dividing fresh air device, comprising a first shell (a) and a second shell (b) connected to each other, characterized in that: A fan air outlet (ab1) is provided between the connecting surfaces of the first shell (a) and the second shell (b); an air inlet valve (a1) and an air return valve (a2) with a simple filtering device are provided on the first shell (a); a purification chamber and a fan (1) are also provided in the first shell (a); the fan (1) is located in the purification chamber and connected to the fan air outlet (ab1); the second shell (b) is provided with a fresh air outlet (b1); and the second shell (b) is provided with a gas temperature and humidity regulating device (2).

2. A room-dividing fresh air device as claimed in claim 1, characterized in that: The gas temperature and humidity regulating device (2) comprises a first heat exchange component (21) having a first water inlet (21a) and a first water outlet (21b) formed on a second shell (b), the first water inlet (21a) being connected to an electronic three-way valve (3), one end of which is connected to a cooling water network.

3. A room-dividing fresh air device as claimed in claim 2, characterized in that: A condensate receiving pan (b2) is provided at the bottom of the second shell (b), and a condensate outlet (b3) connected to the condensate receiving pan is opened in the second shell (b).

4. A room-dividing fresh air device as claimed in claim 3, characterized in that: The gas temperature and humidity regulating device (2) further comprises a second heat exchange component (22) having a second water inlet (22a) and a second water outlet (22b) formed in a second shell (b), the second water inlet (22a) being connected to hot water, a one-way control valve (4) being connected in front of the water inlet (22a), and a bypass port of the electronic three-way valve (3) of the first heat exchange component (21) being connected to a side of the one-way control valve (4) close to the water inlet (22a).

5. A room-dividing fresh air device as claimed in claim 4, characterized in that: The purification chamber comprises an ultraviolet disinfection chamber (a11) and a filter assembly (a12), wherein the filter assembly (a12) is located on a side closer to the air inlet valve port (a1), the fan (1) is located in the ultraviolet disinfection chamber (a11), and the ultraviolet disinfection chamber (a11) is also provided with a temperature and humidity sensor device.

6. A room-dividing fresh air device as claimed in claim 5, characterized in that: The part of the filter assembly (a12) closest to the air inlet valve port (a1) is a primary filter (a121), the second layer is activated carbon (a122), and the third layer is a high-efficiency filter (a123).

7. A room-dividing fresh air device as claimed in claim 6, characterized in that: The chamber fresh air device is also provided with an automatic and manually set manual automatic control system.

8. A room-dividing fresh air device as claimed in claim 1, characterized in that: The first shell (a) and the second shell (b) are externally provided with thermal insulation cotton (ab2).

9. A fresh air system, characterized in that: The fresh air system comprises a chamber fresh air device as described in any one of claims 1 to 8, a centralized hot and cold water supply system and a central control system, wherein the centralized hot and cold water supply system is connected to a corresponding gas temperature and humidity regulating device (2).

10. The fresh air system according to claim 9, characterized in that: The central control system is used to supervise and control the operation of the room fresh air device, and can control the centralized hot and cold water supply system according to the overall operation status.

Images