CN202613689U - Loop heat pipe fresh air ventilation device - Google Patents

Abstract

The utility model relates to a loop heat pipe fresh air ventilation device, which is characterized in that: it is composed of a loop heat pipe heat exchange system and a fresh air ventilation system; Partitions and covers. When the device is working, the axial flow fan conveys the hot air and is filtered by the filter. The heat of the air is transferred to the heat conduction medium in the heat pipe through the fin and the heat pipe in the middle of the fin, so that the medium evaporates. At the other end of the loop heat pipe, the gas phase medium condenses and The heat is released to the fins and the heat pipes in the middle of the fins, and finally the heat is transferred to the cold air sent by the axial flow fan. The device is simple in structure and easy to operate, utilizes low-grade heat energy in the working process, and saves high-grade energy.

Description

Loop heat pipe fresh air ventilation device

technical field

The utility model relates to a novel energy-saving ventilation device suitable for both winter and summer, in particular to a loop heat pipe fresh air ventilation device which utilizes a loop heat pipe to exchange heat between cold and hot air.

technical background

As people's requirements for living space comfort are getting higher and higher, more and more air conditioners and other equipment have entered ordinary homes, making people's houses gradually transition from traditional open types with gaps to high-performance airtight types. As a result, indoor ventilation devices are widely used in modern houses to meet people's pursuit of high-quality life. However, the traditional ventilation device does not involve the recovery and utilization of dirty air energy during use, and the energy consumption for long-term use is too high.

Contents of the invention

The utility model solves the problem of indoor ventilation from the perspectives of energy saving and environmental protection and proposes a loop heat pipe fresh air ventilation device. The utility model can be used in winter and summer, has a simple structure, reduces energy dissipation in the process of indoor ventilation, and has high commercial promotion value and social value.

The technical solution adopted by the utility model is: a loop heat pipe fresh air ventilation device, which is characterized in that: it is composed of a loop heat pipe heat exchange system and a fresh air ventilation system; the loop heat pipe heat exchange system is composed of multiple annular heat pipes 1 and Multiple sets of fins 2 are formed, and the annular heat pipe 1 is formed by connecting two transverse tubes and two longitudinal tubes. One of the longitudinal tubes is arranged at the hot end, and the other is arranged at the cold end. It vertically passes through the heat insulation partition 5 with round holes and is distributed in the hot and cold space. The fin 2 is an integral fin with several round holes. The longitudinal tube vertically passes through the opening in the fin 2 and connects the horizontal tube. Finned tube heat exchange system; fresh air ventilation system consists of two diagonally arranged first axial flow fans 3A, second axial flow fans 3B, first air filter 4A, second air filter 4B, and insulation partitions 5 It is composed of the outer cover 6, wherein the heat insulating partition 5 is arranged in the middle of the device and is perpendicular to the transverse pipe, and divides the device into two parts with the same space, namely the hot end and the cold end. The front and rear ends of the outer cover 6 are open, and the first axial flow fan 3A 1. The second axial fan 3B is diagonally arranged at the front and rear ends of the outer cover 6, the first air filter 4A and the second air filter 4B are respectively arranged at the front ends of the first axial fan 3A and the second axial fan 3B, and the outer cover 6 covers For the whole heat exchange device, the openings on the first air filter 4A and the second air filter 4B on the outer cover are air inlets, and the openings on the outer cover are air outlets.

In the loop heat pipe heat exchange system, the horizontal tube of the annular heat pipe [1] passes vertically and is welded on the heat insulating partition 5 with a circular hole; hole on fin 2.

In the fresh air ventilation device, the first axial flow fan 3A and the second axial flow fan 3B are connected to external power sources, one is used for air supply, and the other is used for air induction, and the air supply and induction are performed simultaneously. The air sent and introduced is filtered by the first air filter 4A and the second air filter 4B and separated by the heat insulating partition 5 . The first axial fan 3A and the second axial fan 3B are diagonally arranged at the front and rear ends of the outer cover 6 and the size is about half of the surface area of the front and rear ends of the outer cover, and the axial fan is perpendicular to the fins; the first air filter 4A, the second air The filter screen 4B is installed on the front and back of the outer cover 6, before the first axial flow fan 3A and the second axial flow fan 3B, and is used to filter the air entering and leaving through the fin tube structure; the first axial flow fan 3A and the second axial flow fan The cold and hot air transported by 3B are filtered by the first air filter 4A and the second air filter 4B, separated by the heat insulation partition 5, and exchanged heat through the loop heat pipe 1 and the fins 2.

The hot air delivered by the first axial flow fan 3A is filtered by the first air filter 4A, and the heat in the air is transferred to the heat transfer medium in the heat pipe through the fin 2 and the ring heat pipe 1 in the middle of the fin, and the heat transfer medium evaporates, and the heat in the ring heat pipe 1 At the other end, the gas-phase heat transfer medium condenses and releases heat to the fins 2 and the ring-shaped heat pipe 1 in the middle of the fins, and finally transfers the heat to the cold air filtered by the second air filter 4B fed by the second axial flow fan 3B to achieve purpose of heat recovery. The heat conducting medium is generally water or alcohol. The cold and hot air drawn and sent by the first axial flow fan 3A and the second axial flow fan 3B form a cold end and a hot end at both ends of the loop heat pipe 1 and form a temperature difference, so that the heat transfer medium in the loop heat pipe evaporates and condenses and flows back , to achieve the purpose of heat transfer between cold and hot air.

When the device is used in winter, the loop heat pipe heat exchanger will transfer the heat of the dirty hot air discharged from the room to the fresh cold air sent into the room, so that the temperature of the cold air sent into the room will rise; The heater transfers the heat of the hot air sent into the room during ventilation to the cold air drawn out of the room, reducing the temperature of the hot air. The heat exchange Q of cold and hot air is approximately the energy saved during the working process of the device. The invention utilizes the characteristic of bidirectional heat conduction of the loop heat pipe, so that the device is suitable for use in winter and summer. The device is simple in structure and easy to operate, utilizes low-grade heat energy in the working process, and saves high-grade energy.

Beneficial effect:

The device uses a loop heat pipe, and the hot and cold air can conduct two-way heat conduction without changing the arrangement form. When the device is used in winter, the loop heat pipe will transfer the heat of the dirty hot air discharged from the room to the fresh cold air sent into the room, so that the temperature of the cold air sent into the room will rise; when used in summer, the loop heat pipe will change the air The heat of the hot air sent into the room is transferred to the cold air drawn out of the room, reducing the temperature of the hot air. By using this device, the user can reduce the energy consumption during the ventilation process and save some high-grade energy. At the same time, the use of the ventilation device can keep the indoor air fresh, which is beneficial to human health. The structure of this device is simple, the design idea is novel, and it has high commercial value and social value. At the same time, the design concept also implements the relevant national policies on energy conservation and emission reduction.

Description of drawings

Figure 1 is a schematic diagram of the working principle of the loop heat pipe;

Fig. 2 is the top view schematic diagram of device;

Figure 3 is a schematic front view of the device; wherein 1-annular heat pipe, 2-fin, 3A-the first axial fan, 3B-the second axial fan, 4A-the first air filter, 4B-the second air filter , 5-insulating partition, 6-outer cover, in-air inlet, out-air outlet, E-heat transfer working medium evaporated by heat, F-heat transfer working medium condensed backflow.

Detailed ways

Example 1:

In this embodiment, a loop heat pipe heat exchange system and a fresh air ventilation system are designed. The loop heat pipe heat exchange system is composed of multiple ring heat pipes and multiple sets of fins. The ring heat pipes are connected by two horizontal tubes and two vertical tubes. The cold end and longitudinal tubes are forked, and the horizontal tubes vertically pass through the heat-insulating partitions with round holes and are distributed in the hot and cold space. The fins are integral fins with several round holes, and the longitudinal tubes vertically pass through the Open holes and horizontal tubes are connected to form a finned tube heat exchange system; the fresh air ventilation system is composed of two diagonally arranged first and second axial flow fans, first and second air filters, thermal insulation partitions and outer covers, Among them, the heat insulation partition is arranged in the middle of the device and is perpendicular to the transverse tube, which divides the device into two parts with the same space. The front and rear ends of the outer cover are open, and the first and second axial flow fans are arranged diagonally at the front and rear ends of the outer cover. The two air filters are respectively arranged at the front ends of the first and second axial flow fans, and the outer cover covers the whole heat exchange device.

Instructions:

Install the device on a glass window or in a wall that has been opened. The first axial flow fan is installed indoors for air induction, and the second axial flow fan is installed outdoors for air supply.

When ventilating the room, the two axial flow fans are connected to electricity and start working at the same time. The air introduced and sent is filtered by the first and second air filters and separated by a heat-insulating partition. The cold and hot air are separated in the ring The two ends of the heat pipe form a cold end and a hot end and form a temperature difference, so that the heat transfer medium at both ends of the annular heat pipe evaporates and condenses back to flow, forming a working cycle to achieve the purpose of heat transfer. The fin design is to increase the heat exchange area of cold and hot air and increase the amount of heat exchange. The number of ring heat pipes and the number of fin groups are adjusted according to actual needs.

"New loop heat pipe fresh air ventilation device" is to solve the problem of indoor ventilation from the perspective of energy saving and environmental protection. The production cost of this device will continue to decrease with the gradual development of heat pipe technology and the emergence of new composite materials. People accept that this device with high commercial value and social value will have a very large promotion value, and the device will have a broad market prospect.

Claims (2)

1. a loop circuit heat pipe fresh air-changing device is characterized in that: be made up of loop circuit heat pipe heat-exchange system and ventilation air interchange system; The loop circuit heat pipe heat-exchange system is made up of many annular heat pipes [1] and many group fins [2]; Wherein annular heat pipe [1] is to be formed by connecting two transverse pipe and two vertical pipes; Vertically Guan Yigen is arranged in the hot junction, and another root is arranged in cold junction and vertically manages fork row, and transverse pipe is vertically passed the thermal baffle [5] that has circular hole and is distributed in the cold and hot space; Fin [2] is for integral fins and have circular hole, and perforate and transverse pipe that vertical pipe vertically passes in the fin [2] connect to form the finned tube heat-exchange system; Ventilation air interchange system is made up of first axial flow blower [3A], second axial flow blower [3B], first airstrainer [4A], second airstrainer [4B], thermal baffle [5] and the outer cover [6] of two diagonal; It is middle and vertical with transverse pipe that wherein thermal baffle [5] is arranged in device; Handle assembly is divided into two identical parts of space; Be hot junction and cold junction; Sky is opened in outer cover [6] front and back end; First axial flow blower [3A], second axial flow blower [3B] diagonal are in outer cover [6] front and back end, and first airstrainer [4A], second airstrainer [4B] are arranged in first axial flow blower [3A], second axial flow blower [3B] front end, and outer cover [6] covers whole heat-exchanger rig.

2. loop circuit heat pipe fresh air-changing device according to claim 1 is characterized in that described first axial flow blower [3A], second axial flow blower [3B] external power supply, and axial flow blower is vertical with fin.

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