Ventilation air-conditioning system

Abstract

The utility model provides a ventilation air conditioning system. The ventilation air conditioning system comprises a tunnel, a first air pipe, an air supply device and a first heat pipe set. One end opening of the tunnel is communicated with the outside, and the other end opening of the tunnel is communicated with the inside through a first air pipe; the air supply device is arranged on a passage of the first air pipe, a first heat pipe group comprising a plurality of first heat pipes is arranged at the top of the tunnel, condensation ends of the first heat pipes are arranged in soil of the tunnel, evaporation ends of the first heat pipes are arranged in a cavity of the tunnel, and the air supply device drives outdoor air to pass through the tunnel; after exchanging heat with the tunnel and the first heat pipe set arranged in the tunnel, the air enters a room through the first air pipe and is emptied through the ventilation holes of the building so as to complete ventilation circulation of the building, and the problems that a traditional tunnel air system is limited in heat exchange effect and large in construction scale are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building energy conservation and heating, ventilation and air conditioning, and particularly relates to a ventilation and air conditioning system. Background Art

[0002] Tunnel air conditioning technology uses tunnels to cool or heat outdoor air, which is then delivered to above-ground building interiors via mechanical or induced ventilation systems. Tunnel air conditioning utilizes the natural thermal or cooling properties of the earth. In summer, outdoor air enters the tunnel, where it cools down through heat transfer with the tunnel walls. The air in the tunnel is then transported through ducts into the building interior via ventilation systems. In winter, heat transfer between the tunnel and the air raises the incoming air temperature, thereby cooling or warming the incoming outdoor air. This technology is primarily used in public buildings such as theaters, auditoriums, and industrial plants. It utilizes existing underground structures, such as urban air defense structures and air-raid shelters, to provide cooling air, offering advantages such as low construction costs, economic benefits, and significant energy savings. However, for small residential buildings, traditional tunnel systems suffer from low energy efficiency, relatively large tunnel construction scale, and limited energy savings. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a ventilation and air-conditioning system to solve the technical problems raised in the technical background.

[0004] The utility model discloses a ventilation and air-conditioning system, comprising an underground tunnel, a first air duct, and an air supply device; one end of the underground tunnel is open and communicates with the outside, and the other end of the underground tunnel is open and communicates with the room through the first air duct; the air supply device is arranged on the passage of the first air duct and also includes a first heat pipe group;

[0005] The first heat pipe group is placed on the top of the tunnel;

[0006] The first heat pipe group includes a plurality of first heat pipes;

[0007] The condensing end of the first heat pipe is placed in the soil of the tunnel, and the evaporating end of the first heat pipe is placed in the cavity of the tunnel.

[0008] In a ventilation and air-conditioning system provided by the utility model, an air supply device drives outdoor air through a tunnel, exchanges heat with the tunnel and a first heat pipe group arranged in the tunnel, and then enters the room through a first air duct and is exhausted through the ventilation holes of the building to complete the ventilation cycle of the building.

[0009] Furthermore, the diameter of the tunnel is 0.3m-0.5m, and the length of the tunnel is 20m-50m.

[0010] Furthermore, the air supply device includes a variable frequency induced draft fan, and the variable frequency induced draft fan can adjust the amount of air supplied into the room.

[0011] Furthermore, the solar chimney is provided on the roof of the building and is connected to the indoor environment. The solar chimney is used to increase the indoor exhaust pressure, realize the indoor unpowered exhaust, and reduce the load of the air supply device.

[0012] Furthermore, the system further includes a first air valve, which is disposed on the passage of the first air duct and is used to control the opening and closing of the air flow passage of the first air duct;

[0013] Furthermore, the air handling device further comprises an air handling device and a second air duct, wherein the air inlet of the air handling device is connected to the air outlet of the air supply device, and the second air duct is connected between the air outlet of the air handling device and the indoor space. The second air duct is used to transport the air treated by the air handling device to the indoor space.

[0014] Furthermore, it also includes a second air valve, which is arranged on the passage of the second air duct and is used to control the opening and closing of the air flow passage of the second air duct.

[0015] Furthermore, the air treatment device is at least one of an air purification device, an air filtering device, an air humidity control device, an air temperature control device and a static pressure box.

[0016] Furthermore, it also includes a monitoring and control device, which includes a control display, a temperature sensor, a humidity sensor and a barometer. The temperature sensor, the humidity sensor and the barometer are arranged indoors to detect the indoor temperature, humidity and pressure. The control display is respectively connected to the first air valve, the air supply device, the air treatment device and the second air valve.

[0017] Furthermore, it also includes a second heat pipe group;

[0018] The second heat pipe group includes a plurality of second heat pipes;

[0019] The second heat pipe group is placed at the bottom of the tunnel;

[0020] The evaporation end of the second heat pipe is buried in the soil of the tunnel, and the condensation end of the second heat pipe is placed in the cavity of the tunnel.

[0021] The utility model has the following beneficial effects:

[0022] 1) Using heat pipes to enhance heat exchange between air and tunnel soil, the tunnel construction scale is small, which can save construction costs and has better economic efficiency compared with traditional tunnel ventilation systems;

[0023] 2) The solar chimney-assisted mechanical air supply system can effectively utilize the thermal pressure and dynamic pressure generated by natural wind to achieve unpowered exhaust and reduce the operating load of the air supply device;

[0024] 3) The air handling device and exhaust function largely utilize solar energy as a power source, improving the utilization of renewable energy and achieving building energy conservation;

[0025] 4) Use monitoring and control devices to monitor indoor temperature, humidity, pressure and other parameters, adjust the air supply status in winter and summer, and start and stop the induced draft fan in transitional seasons, and adjust the amount of fresh air delivered to the room. By adjusting the air supply status and air volume, energy waste is reduced and the energy consumption of the building is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is an overall schematic diagram of a ventilation and air-conditioning system provided by some embodiments of the present invention.

[0027] Figure 2 This is an overall schematic diagram of a ventilation and air-conditioning system provided by some embodiments of the present invention.

[0028] Figure 3 is a schematic diagram of a tunnel of a ventilation and air-conditioning system provided by some embodiments of the present invention,

[0029] Figure 4 A connection diagram of a ventilation and air-conditioning system provided in some embodiments of the present invention.

[0030] Description of reference numerals:

[0031] 100. Authentic,

[0032] 200. The first heat pipe group,

[0033] 210. First heat pipe,

[0034] 300. The second heat pipe group,

[0035] 310. Second heat pipe,

[0036] 400. First air duct,

[0037] 410. The first air valve,

[0038] 500. Air supply device,

[0039] 600. Solar chimney,

[0040] 700. Air handling unit,

[0041] 800. Second air duct,

[0042] 810. Second air valve. DETAILED DESCRIPTION

[0043] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0044] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. It should be noted that in the description of the present invention, the terms "inside", "outside", "upper", "lower", "top", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] As described in the above background technology, the traditional tunnel wind system has limited heat exchange effect, the tunnel construction scale is large, and the system energy consumption is high. Therefore, the present invention provides a ventilation and air-conditioning system that can be used for small residential buildings. The system combines heat pipes with tunnels to strengthen the heat exchange between soil and air, enhance the overall performance of the tunnel wind system, and solve the problems of limited heat exchange effect and large construction scale of the traditional tunnel wind system.

[0047] The following is combined with Figure 1-3 The implementation of the ventilation and air-conditioning system according to the disclosure of the present utility model is described in detail. Figure 1 is an overall schematic diagram of a ventilation and air-conditioning system provided in some embodiments of the present application; Figure 2 is an overall schematic diagram of a ventilation and air-conditioning system provided in some embodiments of the present application; Figure 3 is a schematic diagram of a tunnel of a ventilation and air conditioning system provided by some embodiments of the present invention; Figure 4 A connection diagram of a ventilation and air-conditioning system provided in some embodiments of the present invention.

[0048] See also Figure 1 As shown, the ventilation and air-conditioning system of the present invention includes a tunnel 100, a first heat pipe group 200, a first air duct 400 and an air supply device 500; the first heat pipe group 200 is arranged at the top of the tunnel; the first heat pipe group 200 includes a plurality of first heat pipes 210, the condensing end 211 of the first heat pipe 210 is placed in the soil of the tunnel 100, and the evaporating end 212 of the first heat pipe 210 is placed in the cavity of the tunnel 100; one end of the tunnel 100 is opened to communicate with the outside, and the other end of the tunnel 100 is opened to communicate with the first air duct 400, and the first air duct 400 is connected to the room; the air supply device 500 is arranged on the passage of the first air duct 400, and the air supply device is used to drive outdoor air through the tunnel and the first air duct into the room and then be discharged through the ventilation holes to complete the ventilation cycle.

[0049] In the embodiment of the present invention, a first heat pipe group 200 is provided in the tunnel 100 to enhance heat exchange between the soil and the air passing through the tunnel 100, thereby processing the outdoor air passing through the tunnel 100 to a state close to or in accordance with indoor air supply conditions. The first heat pipe group 200 is provided at the top of the tunnel; the first heat pipe group 200 includes a plurality of first heat pipes 210, and the type of the plurality of first heat pipes 210 can be selected as gravity vacuum heat pipes, wherein the working fluid inside the heat pipes can flow downward by gravity, the condensation end 211 of the first heat pipe 210 is placed in the soil of the tunnel 100, and the evaporation end 212 of the first heat pipe 210 is placed in the cavity of the tunnel 100; in summer, the boiling point of the working fluid in the first heat pipe 210 is lower than the temperature of the air supplied to the tunnel, while the soil temperature is lower than its liquefaction temperature, so that the working fluid in the first heat pipe 210 can repeatedly absorb and release heat, thereby achieving the first heat pipe 210 processing of the outdoor air.

[0050] In addition to relying on the tunnel 100 to process the outdoor air passing therethrough, the ventilation and air-conditioning system provided in this embodiment also has a plurality of first heat pipes 210 buried at intervals at the top of the tunnel 100. The outdoor air entering the tunnel is cooled by the phase change of the working medium in the first heat pipes 210, thereby achieving cooling treatment of the outdoor air introduced into the tunnel 100 during high temperatures in summer.

[0051] In some embodiments of the present invention, the tunnel 100 has a diameter of 0.3m-0.5m and a length of 20m-50m. Compared to conventional tunnel ventilation systems, this invention utilizes heat pipes to enhance heat exchange, requiring lower diameter and length requirements. This reduces the construction scale and can save approximately 30% in construction costs, making it more economical than conventional tunnel ventilation systems. The entrance to the tunnel 100 can be equipped with a rodent- and insect-proof screen, and a filter can also be installed to prevent large debris from entering the air.

[0052] In some embodiments of the present invention, the air supply device 500 includes a variable-frequency induced draft fan. This device is used to power the air flow throughout the system. The air supply device 500 draws fresh outdoor air into the air supply tunnel and ultimately delivers it indoors. The variable-frequency fan in the air supply device 500 can adjust the air volume delivered to the interior of the building based on the indoor environmental requirements.

[0053] See also Figure 1 As shown, in some embodiments of the present invention, the ventilation and air conditioning system also includes a solar chimney 600, which is installed on the roof of the building and connected to the interior through side wall vents. The solar chimney 600 is a device that uses thermal pressure to guide and enhance natural ventilation. It consists of a glass panel, a heat-absorbing plate, an air vent, and insulation. The principle is that solar radiation passes through the glass panel, heating the air within the air duct, creating a thermal pressure difference. The hot air rises and is discharged through outlets such as the side wall vents, creating air circulation and reducing the energy consumption of the building's air conditioning system. In this embodiment, the solar chimney 600 is used to increase the exhaust pressure of the indoor air, achieving unpowered exhaust and reducing the load on the air supply device 500. The solar chimney 600 is powered by solar panels. After receiving solar energy, the solar panels store energy for indoor use. The air within the chimney is heated by the sunlight, reducing its density and allowing it to be discharged outdoors. A turbine fan is installed above the solar chimney 600. A pressure sensor is installed inside the chimney and connected to an inverter to control the turbine fan's speed.

[0054] See also Figure 1 As shown, in some embodiments provided by the present invention, the ventilation and air conditioning system further includes a first air valve 410, which is disposed on the passage of the first air duct 400 to open and close the air flow passage of the first air duct 400;

[0055] See also Figure 2As shown, in some embodiments provided by the present invention, the ventilation and air-conditioning system further includes an air treatment device 700 and a second air duct 800. The air inlet of the air treatment device 700 is connected to the air outlet of the air supply device 500. The second air duct 800 is connected to the air outlet of the air treatment device 700 and the indoor space to transport the air treated by the air treatment device 700 to the indoor space. The air treatment device 700 in the present invention can be auxiliary driven by the solar panel, the power source of the solar chimney 600, and charged when there is sufficient sunlight to provide the energy required for the operation of the air treatment device 700. Specifically, the air treatment device 700 is at least one of an air purification device, an air filtration device, an air humidity control device, an air temperature control device, and a static pressure box. The air treatment device 700 is used to perform secondary treatment on the air that has been processed by the tunnel and heat pipe, and purifies, filters, humidifies or dehumidifies the air, and performs temperature treatment on the air before sending it into the room. The ventilation and air-conditioning system provided by the utility model uses the solar-powered air treatment device 700 to further process the air sent into the room, and exhausts the air through solar chimney technology, thereby improving the utilization of renewable energy and reducing the energy consumption of the building.

[0056] See also Figure 2 As shown, in some embodiments provided by the present invention, the ventilation and air-conditioning system further includes a second air valve 810 , which is disposed on the passage of the second air duct 800 to open and close the air flow passage of the second air duct 800 .

[0057] See also Figure 1-Figure 3 As shown, in some embodiments provided by the present invention, the ventilation and air conditioning system further includes a second heat pipe assembly 300; the second heat pipe assembly 300 is disposed at the bottom of the tunnel 100; the second heat pipe assembly 300 includes a plurality of second heat pipes 310; the evaporation ends of the second heat pipes 310 are buried in the soil of the tunnel 100, and the condensation ends of the second heat pipes 310 are disposed in the cavity of the tunnel 100. During colder seasons, such as winter, the liquefaction temperature of the working fluid in the second heat pipes 310 is higher than the temperature of the air supplied to the tunnel. The condensation ends of the second heat pipes 310 are disposed in the cavity of the tunnel 100, while the evaporation ends are disposed in the soil at a temperature higher than their boiling point. This allows the working fluid in the second heat pipes 310 to repeatedly absorb and release heat, thereby raising the temperature of the air passing through the tunnel. However, since the air temperature in the tunnel is lower than the boiling point of the working fluid in the heat pipes, the first heat pipes 210 of the first heat pipe assembly 200 do not operate. Likewise, in seasons with higher temperatures, such as summer, only the first heat pipe group 200 works, and the second heat pipe group 300 does not work.

[0058] See also Figure 4As shown, in some embodiments provided by the present invention, the ventilation and air conditioning system further includes a monitoring and control device, which includes a control display, a temperature sensor, a humidity sensor, and a barometer. The temperature sensor, humidity sensor, and barometer are installed indoors to detect the indoor temperature, humidity, and pressure. The control display is respectively connected to the first damper 410, the air supply device 500, the air handling device 700, and the second damper 810. The monitoring and control device can detect parameters such as temperature, humidity, and pressure in the room, regulate the air supply status in summer and winter, and regulate the start and stop of the air supply device 500, such as the induced draft fan, and the closing of the first air duct 400 and the second air duct 800 during transitional seasons.

[0059] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept 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 present utility model patent shall be determined by the appended claims.

Claims

1. A ventilation and air-conditioning system, comprising an underground tunnel (100), a first air duct (400), and an air supply device (500); one end of the underground tunnel (100) is open and communicates with the outside, and the other end of the underground tunnel (100) is open and communicates with the room through the first air duct (400); the air supply device (500) is arranged on the passage of the first air duct (400), and is characterized in that: Also included is a first heat pipe group (200); The first heat pipe group (200) is placed on the top of the tunnel (100); The first heat pipe group (200) comprises a plurality of first heat pipes (210); The condensation end of the first heat pipe (210) is placed in the soil of the tunnel (100), and the evaporation end of the first heat pipe (210) is placed in the cavity of the tunnel (100).

2. The ventilation and air-conditioning system according to claim 1, wherein: The diameter of the tunnel (100) is 0.3m-0.5m, and the length of the tunnel (100) is 20m-50m.

3. The ventilation and air-conditioning system according to claim 1, wherein: The air supply device (500) comprises a variable frequency induced draft fan.

4. The ventilation and air-conditioning system according to claim 1, wherein: It also includes a solar chimney (600), which is arranged on the roof of the building and communicates with the interior of the building.

5. The ventilation and air-conditioning system according to claim 1, wherein: It also includes a first air valve (410), which is arranged on the passage of the first air duct (400).

6. The ventilation and air-conditioning system according to claim 1, wherein: Also included is an air handling device (700) and a second air duct (800); The air flow inlet of the air treatment device (700) is in communication with the air flow outlet of the air supply device (500); The second air duct (800) is connected to the air flow outlet of the air treatment device (700) and the room.

7. The ventilation and air-conditioning system according to claim 6, wherein: It also includes a second air valve (810), which is arranged on the passage of the second air duct (800).

8. The ventilation and air-conditioning system according to claim 6, wherein: The air treatment device (700) is at least one of an air purification device, an air filtering device, an air humidity regulating device, an air temperature regulating device, and a static pressure box.

9. The ventilation and air-conditioning system according to claim 7, wherein: Also includes a monitoring control device and a first air valve (410); The monitoring and control device includes a control display, a temperature sensor, a humidity sensor and a barometer; The temperature sensor, the humidity sensor and the barometer are arranged indoors; The control display is respectively connected to the first air valve (410), the air supply device (500), the air treatment device (700), and the second air valve (810).

10. The ventilation and air-conditioning system according to any one of claims 1 to 9, characterized in that: Also includes a second heat pipe group (300); The second heat pipe group (300) is placed at the bottom of the tunnel (100); The second heat pipe group (300) includes a plurality of second heat pipes (310); The evaporation end of the second heat pipe (310) is buried in the soil of the tunnel (100), and the condensation end of the second heat pipe (310) is placed in the cavity of the tunnel (100).

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