Double-season heat recovery gravity assisted heat pipe

Abstract

The gravity assisted heat pipe comprises a box body, the upper end face of the box body is provided with an air exhaust inlet with an upward opening, an air exhaust outlet, a fresh air inlet, a fresh air outlet and a plurality of partition plates, the partition plates divide the interior of the box body into a plurality of cavities, the air exhaust inlet is separated from the fresh air outlet through the partition plates, and the fresh air inlet is communicated with the fresh air outlet through the partition plates. The fresh air inlet and the exhaust air outlet are separated by a partition plate, and the fresh air inlet and the exhaust air outlet are adjacently formed in the same side of the box body; the opening or closing state of the air valves can be adjusted, the air valves are installed on the partition plates, the adjacent cavities are communicated through the air valves, and channels between the exhaust air inlet and the exhaust air outlet and between the fresh air inlet and the fresh air outlet are distributed in a crossed mode; the heat pipe heat exchanger is vertically installed in the middle of the box body. According to the gravity assisted heat pipe for double-season heat recovery, the air exhaust channel and the fresh air channel are adjusted through the control air valve, so that the trend of airflow is changed, the function of double-season heat recovery is achieved, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat recovery of heat pipes, and in particular to a gravity heat pipe for dual-season heat recovery. Background Art

[0002] A heat pipe is a man-made component with excellent heat transfer performance, usually composed of a closed metal pipe and an internal working fluid. During use, fins are usually installed on the outside of the heat pipe to increase the heat exchange area and heat exchange amount. The inside of the heat pipe is filled with working fluid in a vacuum state, and the working fluid is saturated inside the heat pipe. Cold air flows outside the high end of the heat pipe, and hot air flows outside the low end. Liquid working fluid accumulates at the low end of the heat pipe due to gravity. When hot air flows through the low end, the working fluid inside it is heated and evaporated to form steam. Because there is cold air flowing outside the high end, the saturation pressure inside the high end is low, and the steam flows to the high end; at the same time, the cold air cools the heat pipe when it flows through the high end, and the steam in the high end is condensed into liquid after being cooled. Then, due to gravity, the liquid working fluid flows along the inner wall of the heat pipe to the low end, and is heated again to become steam. This process is cyclical, and the heat from the low end is continuously transferred to the high end.

[0003] The existing heat pipe heat recovery structure usually places one end of the heat pipe in the exhaust duct of the central air conditioner and the other end of the heat pipe in the fresh air duct of the central air conditioner. Such a structure can be used in winter, but such a channel arrangement cannot be used in summer, so heat recovery in both winter and summer cannot be achieved.

[0004] Therefore, in order to solve the above technical problems, it is necessary to develop a gravity heat pipe with dual-season heat recovery. Utility Model Content

[0005] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of the utility model is to provide a gravity heat pipe with dual-season heat recovery, which changes the direction of the air flow by controlling the air valve to adjust the exhaust channel and the fresh air channel, thereby realizing the function of dual-season heat recovery and saving energy consumption.

[0006] Technical solution: A gravity heat pipe with dual-season heat recovery, including

[0007] A box body, wherein the upper end surface of the box body is provided with an exhaust inlet, an exhaust outlet, a fresh air inlet and a fresh air outlet opening upward, wherein the exhaust inlet and the exhaust outlet are arranged diagonally opposite to each other, and the fresh air inlet and the fresh air outlet are arranged diagonally opposite to each other;

[0008] A plurality of partitions, wherein the partitions divide the interior of the box into a plurality of cavities, wherein the exhaust air inlet and the fresh air outlet are separated by the partitions and are adjacently arranged on the same side of the box, and the fresh air inlet and the exhaust air outlet are separated by the partitions and are adjacently arranged on the same side of the box;

[0009] A plurality of air valves, each of which can be adjusted to an open or closed state, are mounted on the partition plate to connect adjacent cavities so that the channels between the exhaust air inlet and the exhaust air outlet, and between the fresh air inlet and the fresh air outlet are cross-arranged;

[0010] A heat pipe heat exchanger is vertically installed in the middle of the box.

[0011] The dual-season heat recovery gravity heat pipe described in the utility model realizes heat recovery between the cold season and the hot season through the coordinated operation of the exhaust inlet, the exhaust outlet, the fresh air inlet and the fresh air outlet, and the adjacent partitions and air valves, so as to adjust the air temperature in different seasons and improve the energy utilization efficiency; the partition divides the interior of the box into a plurality of cavities, and at the same time adjusts the passages between adjacent cavities by the opening and closing states of the air valves, so that the air can cross-flow inside the box, effectively perform heat exchange, and improve the overall heat recovery effect; the heat pipe heat exchanger is vertically installed in the middle of the box to optimize the heat transfer effect. Such a layout more effectively utilizes the working principle of the gravity heat pipe and improves the heat exchange efficiency.

[0012] Furthermore, in the above-mentioned gravity heat pipe with dual-season heat recovery, the partition includes partition 1, partition 2, partition 3, partition 4, partition 5 and partition 6. The partition 1 and partition 2 are vertically arranged on both sides of the heat pipe heat exchanger, parallel to the heat pipe heat exchanger, the partition 3 is vertically placed, the partition 1 is connected and fixed to the side plate of the box, and cavity 1 and cavity 2 are formed, the partition 4 is vertically placed, the partition 2 is connected and fixed to the side plate of the box, and cavity 3 and cavity 4 are formed, the partition 5 is horizontally placed, the partition 1 is connected and fixed to the heat pipe heat exchanger, and cavity 5 and cavity 6 are formed, the partition 6 is horizontally placed, the partition 2 is connected and fixed to the heat pipe heat exchanger, and cavity 7 and cavity 8 are formed. The setting of the partition forms multiple cavities, and the multi-cavity design can better control the air flow, optimize the heat transfer path of the air in the system, and improve the heat transfer efficiency of the entire system.

[0013] Furthermore, in the above-mentioned gravity heat pipe for dual-season heat recovery, air valve 1, air valve 2, air valve 3 and air valve 4 are evenly distributed on the partition 1, the air valve 1 connects cavity 1 and cavity 5, the air valve 2 connects cavity 2 and cavity 5, the air valve 3 connects cavity 1 and cavity 6, the air valve 4 connects cavity 2 and cavity 6, the air valve 5, air valve 6, air valve 7 and air valve 8 are evenly distributed on the partition 2, the air valve 5 connects cavity 3 and cavity 7, the air valve 6 connects cavity 4 and cavity 7, the air valve 7 connects cavity 3 and cavity 8, and the air valve 8 connects cavity 4 and cavity 8. The air valves are installed on the partition to realize local ventilation control of different cavities, so that the system can flexibly adjust the ventilation conditions of each cavity as needed, thereby improving the adaptability of the system.

[0014] Furthermore, in the above-mentioned gravity heat pipe for dual-season heat recovery, the heat pipe heat exchanger is filled with a working fluid, and is in a saturated state inside the heat pipe, and the working fluid flow direction inside the heat pipe heat exchanger is vertical. When the working fluid is in a saturated state inside the heat pipe heat exchanger, through the phase change process, efficient heat transfer can be achieved, the heat exchange efficiency of the heat pipe heat exchanger is improved, and the system recovers and utilizes heat energy more efficiently. The vertical flow direction of the working fluid in the heat pipe heat exchanger helps to achieve directional heat transfer.

[0015] Furthermore, in the above-mentioned gravity heat pipe with dual-season heat recovery, when it is operated in summer, the air valve 2, air valve 3, air valve 5 and air valve 8 are in a closed state, and the exhaust channel is the exhaust air inlet, cavity 1, air valve 1, cavity 5, the upper part of the heat pipe heat exchanger, cavity 7, air valve 6, cavity 4 and exhaust air outlet in sequence, and the fresh air channel is the fresh air inlet, cavity 3, air valve 7, cavity 8, the lower part of the heat pipe heat exchanger, cavity 6, air valve 4, cavity 2 and fresh air outlet in sequence. When operating in summer, by closing specific air valves, the system exhausts hot air from the room and reduces the indoor temperature. Through the path of the exhaust channel, hot air is effectively removed, and by setting a fresh air channel, the system introduces fresh air to improve the quality of indoor air. By controlling the air valve state and channel path in a targeted manner, the system can avoid unnecessary energy waste.

[0016] Furthermore, in the above-mentioned gravity heat pipe with dual-season heat recovery, when it is operated in winter, the air valve 1, air valve 4, air valve 6 and air valve 7 are in a closed state, and the exhaust channel is the exhaust air inlet, cavity 1, air valve 3, cavity 6, the lower part of the heat pipe heat exchanger, cavity 8, air valve 8, cavity 4 and exhaust air outlet in sequence, and the fresh air channel is the fresh air inlet, cavity 3, air valve 5, cavity 7, the upper part of the heat pipe heat exchanger, cavity 5, air valve 2, cavity 2 and fresh air outlet in sequence. When operating in winter, by closing specific air valves, the system will reduce the discharge of hot air and maintain the indoor temperature. Through the path of the exhaust air channel, the hot air is kept circulating indoors. By setting up a fresh air channel, the system introduces fresh air, but at the same time reduces the direct inflow of cold air. At the same time, the fresh air channel can also ensure that the introduced fresh air is heated at the upper part of the heat pipe heat exchanger. By controlling the air valve state and channel path in a targeted manner, the system can reduce energy consumption. Keep indoor warmth in winter and reduce the direct entry of cold air, reduce the load on heating equipment and improve the energy efficiency of the system.

[0017] The beneficial effects of the utility model are as follows: the gravity heat pipe for dual-season heat recovery described in the utility model has a reasonable structural design, and the exhaust channel and the fresh air channel are adjusted by controlling the air valve, thereby changing the direction of the airflow, realizing the dual-season heat recovery function and saving energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a structural schematic diagram of the gravity heat pipe for dual-season heat recovery described in the utility model;

[0019] Figure 2 This is a schematic diagram of the partition structure of the gravity heat pipe for dual-season heat recovery described in the utility model;

[0020] Figure 3 It is a schematic diagram of the cavity structure of the gravity heat pipe for dual-season heat recovery described in the utility model;

[0021] Figure 4 This is a schematic diagram of the air valve structure of the gravity heat pipe for dual-season heat recovery described in the utility model;

[0022] Figure 5 It is a front view of the internal structure of the gravity heat pipe for dual-season heat recovery described in the utility model;

[0023] Figure 6 It is a top view of the internal structure of the gravity heat pipe for dual-season heat recovery described in the present invention.

[0024] In the figure: box 1, exhaust air inlet 21, exhaust air outlet 22, fresh air inlet 23, fresh air outlet 24, heat pipe heat exchanger 3, partition one 31, partition two 32, partition three 33, partition four 34, partition five 35, partition six 36, cavity one 41, cavity two 42, cavity three 43, cavity four 44, cavity five 45, cavity six 46, cavity seven 47, cavity eight 48, air valve one 51, air valve two 52, air valve three 53, air valve four 54, air valve five 55, air valve six 56, air valve seven 57, air valve eight 58. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-6 And specific embodiments are provided to further illustrate the utility model.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example

[0027] like Figure 1-6 As shown, the dual-season heat recovery gravity heat pipe of the utility model comprises

[0028] A box body 1, wherein the upper end surface of the box body 1 is provided with an exhaust air inlet 21, an exhaust air outlet 22, a fresh air inlet 23 and a fresh air outlet 24 opening upward, wherein the exhaust air inlet 21 and the exhaust air outlet 22 are arranged diagonally to each other, and the fresh air inlet 23 and the fresh air outlet 24 are arranged diagonally to each other;

[0029] A plurality of partitions, wherein the partitions divide the interior of the box body 1 into a plurality of cavities, wherein the exhaust air inlet 21 and the fresh air outlet 24 are separated by the partitions and are adjacently arranged on the same side of the box body 1, and the fresh air inlet 23 and the exhaust air outlet 22 are separated by the partitions and are adjacently arranged on the same side of the box body 1;

[0030] A plurality of air valves, each of which can be adjusted to be open or closed, are mounted on the partition plate to connect adjacent cavities, so that the channels between the exhaust air inlet 21 and the exhaust air outlet 22, and the fresh air inlet 23 and the fresh air outlet 24 are cross-arranged;

[0031] The heat pipe heat exchanger 3 is vertically installed in the middle of the box body 1.

[0032] The dual-season heat recovery gravity heat pipe described in the utility model realizes heat recovery between the cold season and the hot season through the coordinated operation of the exhaust inlet 21, the exhaust outlet 22, the fresh air inlet 23 and the fresh air outlet 24, as well as the adjacent partitions and air valves, so as to adjust the air temperature in different seasons and improve the energy utilization efficiency; the partition divides the interior of the box into a plurality of cavities, and at the same time adjusts the channels between adjacent cavities through the opening and closing states of the air valves, so that the air can cross-flow inside the box, effectively perform heat exchange, and improve the overall heat recovery effect; the heat pipe heat exchanger 3 is vertically installed in the middle position of the box to optimize the heat transfer effect. Such a layout more effectively utilizes the working principle of the gravity heat pipe and improves the heat exchange efficiency.

[0033] In this embodiment, Figure 2 As shown, the partition includes partition one 31, partition two 32, partition three 33, partition four 34, partition five 35 and partition six 36. The partition one 31 and partition two 32 are vertically arranged on both sides of the heat pipe heat exchanger 3 and are parallel to the heat pipe heat exchanger 3. The partition three 33 is vertically placed, and the partition one 31 is connected and fixed to the side plate of the box body 1 to form a cavity one 41 and a cavity two 42. The partition four 34 is vertically placed, and the partition two 32 is connected and fixed to the side plate of the box body 1 to form a cavity three 43 and a cavity four 44. The partition five 35 is horizontally placed, and the partition one 31 is connected and fixed to the heat pipe heat exchanger 3 to form a cavity five 45 and a cavity six 46. The partition six 36 is horizontally placed, and the partition two 32 is connected and fixed to the heat pipe heat exchanger 3 to form a cavity seven 47 and a cavity eight 48. The setting of the partition forms multiple cavities. The multi-cavity design can better control the air flow, optimize the heat transfer path of the air in the system, and improve the heat transfer efficiency of the entire system.

[0034] In this embodiment, Figure 3 , 4 As shown, air valve one 51, air valve two 52, air valve three 53 and air valve four 54 are evenly distributed on the partition one 31, the air valve one 51 connects cavity one 41 and cavity five 45, the air valve two 52 connects cavity two 42 and cavity five 45, the air valve three 53 connects cavity one 41 and cavity six 46, the air valve four 54 connects cavity two 42 and cavity six 46, the air valve five 55, air valve six 56, air valve seven 57 and air valve eight 58 are evenly distributed on the partition two 32, the air valve five 55 connects cavity three 43 and cavity seven 47, the air valve six 56 connects cavity four 44 and cavity seven 47, the air valve seven 57 connects cavity three 43 and cavity eight 48, and the air valve eight 58 connects cavity four 44 and cavity eight 48. The air valve is installed on the partition to realize local ventilation control of different cavities, so that the system can flexibly adjust the ventilation conditions of each cavity as needed, thereby improving the adaptability of the system.

[0035] In this embodiment, the heat pipe heat exchanger 3 is filled with a working medium, and the working medium is in a saturated state inside the heat pipe, and the working medium flows in a vertical direction. When the working medium is in a saturated state inside the heat pipe heat exchanger 3, efficient heat transfer can be achieved through a phase change process, the heat exchange efficiency of the heat pipe heat exchanger 3 is improved, and the system can recover and utilize heat energy more efficiently. The vertical flow direction of the working medium in the heat pipe heat exchanger 3 helps to achieve directional heat transfer.

[0036] In this embodiment, Figure 1-4 As shown, when operating in summer, the air valve 2 52, the air valve 3 53, the air valve 5 55 and the air valve 8 58 are in a closed state, the exhaust channel is the exhaust air inlet 21, the cavity 1 41, the air valve 1 51, the cavity 5 45, the upper part of the heat pipe heat exchanger 3, the cavity 7 47, the air valve 6 56, the cavity 4 44 and the exhaust air outlet 22 in sequence, and the fresh air channel is the fresh air inlet 23, the cavity 3 43, the air valve 7 57, the cavity 8 48, the lower part of the heat pipe heat exchanger 3, the cavity 6 46, the air valve 4 54, the cavity 2 42 and the fresh air outlet 24 in sequence. When operating in summer, by closing a specific air valve, the system discharges hot air from the room and reduces the indoor temperature. Through the path of the exhaust channel, the hot air is effectively removed, and by setting the fresh air channel, the system introduces fresh air to improve the quality of the indoor air. By controlling the state of the air valve and the path of the channel in a targeted manner, the system can avoid unnecessary energy waste.

[0037] In this embodiment, Figure 1-4As shown, during winter operation, the air valve 1 51, air valve 4 54, air valve 6 56 and air valve 7 57 are in a closed state, the exhaust channel is the exhaust air inlet 21, cavity 1 41, air valve 3 53, cavity 6 46, the lower part of the heat pipe heat exchanger 3, cavity 8 48, air valve 8 58, cavity 4 44 and exhaust air outlet 22 in sequence, and the fresh air channel is the fresh air inlet 23, cavity 3 43, air valve 5 55, cavity 7 47, the upper part of the heat pipe heat exchanger 3, cavity 5 45, air valve 2 52, cavity 2 42 and fresh air outlet 24 in sequence. During winter operation, by closing specific air valves, the system will reduce the discharge of hot air and maintain the indoor temperature. Through the path of the exhaust channel, the hot air is kept circulating indoors. By setting up the fresh air channel, the system introduces fresh air, but at the same time reduces the direct inflow of cold air. At the same time, the fresh air channel can also ensure that the introduced fresh air is heated at the upper part of the heat pipe heat exchanger 3. By controlling the damper status and channel path in a targeted manner, the system can reduce energy consumption, keep the room warm in winter and reduce the direct entry of cold air, reduce the load on the heating equipment, and improve the energy efficiency of the system.

[0038] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0039] In addition, the embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A gravity heat pipe with dual-season heat recovery, characterized in that: include A box body (1), wherein the upper end surface of the box body (1) is provided with an exhaust air inlet (21), an exhaust air outlet (22), a fresh air inlet (23) and a fresh air outlet (24) which are open upwards, the exhaust air inlet (21) and the exhaust air outlet (22) being arranged diagonally opposite to each other, and the fresh air inlet (23) and the fresh air outlet (24) being arranged diagonally opposite to each other; a plurality of partitions, wherein the partitions divide the interior of the box body (1) into a plurality of cavities, the exhaust air inlet (21) and the fresh air outlet (24) are separated by the partitions and are arranged adjacent to each other on the same side of the box body (1), and the fresh air inlet (23) and the exhaust air outlet (22) are separated by the partitions and are arranged adjacent to each other on the same side of the box body (1); A plurality of air valves, each of which can be adjusted to an open or closed state, and the air valves are mounted on the partition plate to connect adjacent cavities, so that the channels between the exhaust air inlet (21) and the exhaust air outlet (22), and the fresh air inlet (23) and the fresh air outlet (24) are cross-arranged; A heat pipe heat exchanger (3), wherein the heat pipe heat exchanger (3) is vertically mounted in the middle of the box body (1).

2. The gravity heat pipe for dual-season heat recovery according to claim 1, characterized in that: The partitions include partition one (31), partition two (32), partition three (33), partition four (34), partition five (35) and partition six (36). The partition one (31) and partition two (32) are vertically arranged on both sides of the heat pipe heat exchanger (3) and are parallel to the heat pipe heat exchanger (3). The partition three (33) is vertically placed to connect and fix the partition one (31) to the side plate of the box body (1) to form a cavity one (41) and a cavity two (42). The partitions The fourth (34) is placed vertically, the second (32) is connected and fixed to the side plate of the box body (1), and a cavity three (43) and a cavity four (44) are formed; the fifth (35) is placed horizontally, the first (31) is connected and fixed to the heat pipe heat exchanger (3), and a cavity five (45) and a cavity six (46) are formed; the sixth (36) is placed horizontally, the second (32) is connected and fixed to the heat pipe heat exchanger (3), and a cavity seven (47) and a cavity eight (48) are formed.

3. The gravity heat pipe for dual-season heat recovery according to claim 2, characterized in that: Air valve 1 (51), air valve 2 (52), air valve 3 (53) and air valve 4 (54) are evenly distributed on the partition plate 1 (31); the air valve 1 (51) is connected to the cavity 1 (41) and the cavity 5 (45); the air valve 2 (52) is connected to the cavity 2 (42) and the cavity 5 (45); the air valve 3 (53) is connected to the cavity 1 (41) and the cavity 6 (46); the air valve 4 (54) is connected to the cavity 2 (42) and the cavity 6 (46); Air valve five (55), air valve six (56), air valve seven (57) and air valve eight (58) are evenly distributed on the partition plate two (32); the air valve five (55) is connected to the cavity three (43) and the cavity seven (47); the air valve six (56) is connected to the cavity four (44) and the cavity seven (47); the air valve seven (57) is connected to the cavity three (43) and the cavity eight (48); and the air valve eight (58) is connected to the cavity four (44) and the cavity eight (48).

4. The gravity heat pipe for dual-season heat recovery according to claim 1, characterized in that: The heat pipe heat exchanger (3) is filled with a working medium, and the inside of the heat pipe is in a saturated state, and the working medium flows in an up-and-down vertical direction in the heat pipe heat exchanger (3).

5. The gravity heat pipe with dual-season heat recovery according to claim 3, characterized in that: During summer operation, the air valve 2 (52), the air valve 3 (53), the air valve 5 (55) and the air valve 8 (58) are in a closed state, the exhaust passage is sequentially the exhaust air inlet (21), the cavity 1 (41), the air valve 1 (51), the cavity 5 (45), the upper part of the heat pipe heat exchanger (3), the cavity 7 (47), the air valve 6 (56), the cavity 4 (44) and the exhaust air outlet (22), and the fresh air passage is sequentially the fresh air inlet (23), the cavity 3 (43), the air valve 7 (57), the cavity 8 (48), the lower part of the heat pipe heat exchanger (3), the cavity 6 (46), the air valve 4 (54), the cavity 2 (42) and the fresh air outlet (24).

6. The gravity heat pipe for dual-season heat recovery according to claim 3, characterized in that: During winter operation, the air valve one (51), air valve four (54), air valve six (56) and air valve seven (57) are in a closed state; the exhaust air passage is, in sequence, the exhaust air inlet (21), cavity one (41), air valve three (53), cavity six (46), the lower part of the heat pipe heat exchanger (3), cavity eight (48), air valve eight (58), cavity four (44) and the exhaust air outlet (22); and the fresh air passage is, in sequence, the fresh air inlet (23), cavity three (43), air valve five (55), cavity seven (47), the upper part of the heat pipe heat exchanger (3), cavity five (45), air valve two (52), cavity two (42) and the fresh air outlet (24).

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