Plate heat exchanger

Abstract

A plate heat exchanger comprises a supporting frame and a hearth arranged on the supporting frame, a plurality of heat exchange plates are arranged at the top of the hearth, one end of each heat exchange plate is fixedly connected with the top of the hearth, and the other end of each heat exchange plate is fixed to the supporting frame. A heat channel is arranged in the heat exchange plate, an inlet of the heat channel is positioned at the bottom of the heat exchange plate, an outlet of the heat channel is positioned at the top of the heat exchange plate, and the outlet of the heat channel and the inlet of the heat channel are positioned at diagonal positions of the heat exchange plate; an inlet of each hot channel is communicated with the interior of the hearth, and an outlet of each hot channel is communicated with a smoke collecting pipeline. According to the utility model, the plurality of heat exchange plates are communicated with the hearth, so that the heat dissipation area is increased, the heat exchange efficiency is improved, and meanwhile, the plurality of heat exchange plates are overlapped together at intervals, so that the volume of the whole device can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a plate type heat exchanger. Background Art

[0002] Indoor wood stoves (heating cabinets, heating stoves, fireplaces, etc.) heat the air in the stove to high temperature by burning firewood, and then radiate the high temperature into the room through the glass panel on the stove door to create a heating effect. This kind of indoor wood stove mainly radiates heat through the glass panel, and the heat dissipation area is small, resulting in relatively low heat exchange efficiency. Summary of the invention

[0003] Based on this, the purpose of the utility model is to provide a plate heat exchanger to improve the heat exchange efficiency by increasing the heat dissipation area.

[0004] A plate heat exchanger comprises a support frame and a furnace arranged on the support frame, a plurality of heat exchange plates are arranged on the top of the furnace, one end of each heat exchange plate is fixedly connected to the top of the furnace, and the other end is fixed to the support frame;

[0005] A heat channel is provided inside the heat exchange plate, the inlet of the heat channel is located at the bottom of the heat exchange plate, the outlet of the heat channel is located at the top of the heat exchange plate, and the outlet of the heat channel and the inlet of the heat channel are at diagonal positions of the heat exchange plate;

[0006] The inlet of each of the hot channels is communicated with the interior of the furnace, and the outlet of each of the hot channels is communicated with the smoke collecting pipe.

[0007] Compared with the prior art, in the present invention, multiple heat exchange plates are connected to the furnace to increase the heat dissipation area, thereby improving the heat exchange efficiency. At the same time, the gaps between the multiple heat exchange plates are stacked together to reduce the volume of the entire device.

[0008] Furthermore, the heat exchange plate is a hollow structure, and a partition is provided near the outlet of the heat channel, with a gap being left between the bottom of the partition and the heat exchange plate.

[0009] Furthermore, the cross-sectional area of ​​the inlet of the heat channel is larger than the cross-sectional area of ​​the gap, and the cross-sectional area of ​​the gap is larger than the cross-sectional area of ​​the outlet of the heat channel.

[0010] Furthermore, an inclined charging port is provided at the end of the furnace, and a ash cleaning port is provided at the bottom of the charging port.

[0011] Furthermore, a heat-resistant glass window is provided on the side of the furnace, and a secondary air inlet hole is provided at the bottom of the furnace.

[0012] Furthermore, a fan is provided on the side of the furnace, and the fan is directly facing the end of the heat exchange plate.

[0013] Furthermore, universal wheels are provided at the bottom of the support frame.

[0014] Furthermore, the support frame is provided with a shell, and each of the heat exchange plates is located in the shell;

[0015] The shell contains water, and the top of the shell is provided with a water outlet, and the bottom of the shell is provided with a water inlet;

[0016] The water inlet and the water outlet are connected via a circulating water circuit, and a heat sink and a power pump are arranged on the circulating water circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a plate heat exchanger in one embodiment of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the internal structure of the heat exchange plate;

[0019] Figure 3 This is a schematic structural diagram of a plate heat exchanger in another embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a plate heat exchanger in another preferred embodiment of the utility model.

[0021] Description of main component symbols:

[0022]

[0023] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0025] See also Figure 1 A plate heat exchanger provided in one embodiment of the utility model comprises a support frame 10, and a furnace 11 arranged on the support frame 10, a plurality of heat exchange plates 12 are arranged on the top of the furnace 11, one end of each heat exchange plate 12 is fixedly connected to the top of the furnace 11, and the other end is fixed to the support frame 10;

[0026] A heat channel 121 is provided inside the heat exchange plate 12, the inlet of the heat channel 121 is located at the bottom of the heat exchange plate 12, the outlet of the heat channel 121 is located at the top of the heat exchange plate 12, and the outlet of the heat channel 121 and the inlet of the heat channel 121 are at diagonal positions of the heat exchange plate 12;

[0027] The inlet of each of the hot channels 121 is in communication with the interior of the furnace 11 , and the outlet of each of the hot channels 121 is in communication with the smoke collecting duct 13 .

[0028] It should be noted that in the present application, multiple heat exchange plates 12 are connected to the furnace 11 to increase the heat dissipation area, thereby improving the heat exchange efficiency. At the same time, the gaps between the multiple heat exchange plates 12 are stacked together to reduce the volume of the entire device.

[0029] Specifically, the hot air in the furnace 11 passes through the inlet of the hot channel 121, the hot channel 121 and the outlet of the hot channel 121 in sequence, and then is exhausted from the smoke collecting duct 13. During the circulation of the hot air, the hot air transfers heat to the heat exchange plate 12, and then the heat exchange plate 12 transfers heat to the external cold air, thereby realizing the heat exchange process between the internal hot air and the external cold air.

[0030] It should be further clarified that during the heat exchange process, after the air around the heat exchange plate 12 is heated, its volume increases and its density decreases, thereby floating upward, and then the cold air at the bottom of the heat exchange plate 12 is automatically replenished, thereby realizing automatic circulation heating of the indoor air.

[0031] See also Figure 2 In a preferred embodiment of the present application, the heat exchange plate 12 is a hollow structure, and a partition 122 is provided near the outlet of the hot channel 121, and a gap is left between the bottom of the partition 122 and the heat exchange plate 12. By providing the partition 122, it is possible to prevent the hot air from being directly discharged from the outlet after rising to the top, and at the same time, the partition 122 can block the hot air, so that it goes down, passes through the gap, and then is discharged from the outlet, so that the hot air stays in the heat exchange plate 12 for a longer time, thereby increasing the heat exchange time and the heat exchange efficiency.

[0032] In another preferred embodiment of the present application, the heat channel 121 includes a plurality of curved channels, so that the residence time of the hot air in the heat exchange plate 12 is prolonged, thereby increasing the heat exchange time and the heat exchange efficiency.

[0033] Furthermore, in a preferred embodiment of the present application, the cross-sectional area of ​​the inlet of the hot channel 121 is larger than the cross-sectional area of ​​the gap, and the cross-sectional area of ​​the gap is larger than the cross-sectional area of ​​the outlet of the hot channel 121. It should be noted that, since the hot air has a lower temperature and a smaller volume after heat exchange, the cross-sectional area of ​​the hot channel 121 is set to decrease in sequence, which can slow down the gas flow rate, prolong the residence time of the hot air in the heat exchange plate 12, thereby increasing the heat exchange time and the heat exchange efficiency.

[0034] See also Figure 1 In a preferred embodiment of the present application, an inclined charging port 111 is provided at the end of the furnace 11, and a ash cleaning port 112 is provided at the bottom of the charging port 111. In the present application, the fuel used may be wood or charcoal. The charging port 111 is inclined, and the inclination angle of the inclined surface and the dead weight of the fuel can be used to form a natural drainage, promote the heat to burn forward along the inclined surface, and effectively reduce smoke emissions. The residue after combustion falls into the ash cleaning port 112, so that the residue can be cleaned up easily.

[0035] See also Figure 1 In a preferred embodiment of the present application, a heat-resistant glass window 113 is provided on the side of the furnace 11, and a secondary air intake hole 114 is provided at the bottom of the furnace 11. The combustion of the fuel can be observed through the heat-resistant glass window 113, and the furnace 11 can be secondary-air-intaked through the secondary air intake hole 114 to achieve secondary combustion, so that the combustion is more complete, thereby reducing smoke emissions.

[0036] In a preferred embodiment of the present application, a smoke filter is provided at the outlet of the smoke collecting pipe 13, and the emission of smoke and harmful substances is further reduced by the smoke filter.

[0037] See also Figure 3 In a preferred embodiment of the present application, a fan 14 is provided on the side of the furnace 11, and the fan 14 is directly opposite to the end of the heat exchange plate 12. The fan 14 can accelerate the air circulation between adjacent heat exchange plates 12, thereby increasing the heat exchange efficiency and making it convenient for users to enjoy heating.

[0038] In a preferred embodiment of the present application, universal wheels are provided at the bottom of the support frame 10, and the movement of the entire device can be facilitated by the universal wheels.

[0039] See also Figure 4 In another preferred embodiment of the present application, a shell 15 is provided on the support frame 10, and each of the heat exchange plates 12 is located in the shell 15;

[0040] The housing 15 contains water, and a water inlet 151 is provided at the top of the housing 15, and a water outlet 152 is provided at the bottom;

[0041] The water inlet 151 and the water outlet 152 are connected via a circulating water circuit, and a heat sink 16 and a power pump 17 are provided on the circulating water circuit.

[0042] It should be noted that, in this embodiment, the heat exchange plate 12 heats the water in the housing 10. After a preset time, the power pump 17 drives the water to circulate, heats the heat sink 16 with the hot water, and finally achieves heat exchange between the heat sink 16 and the indoor air.

[0043] In summary, in the present invention, multiple heat exchange plates 12 are arranged to be connected to the furnace 11 to increase the heat dissipation area, thereby improving the heat exchange efficiency. At the same time, the gaps between the multiple heat exchange plates 12 are stacked together to reduce the volume of the entire device. And through different settings, the present application can heat air or water.

[0044] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. The above-mentioned embodiments only express several implementation methods of the utility model, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several deformations and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A plate heat exchanger, comprising a support frame and a furnace arranged on the support frame, It is characterized in that A plurality of heat exchange plates are provided on the top of the furnace, one end of each of the heat exchange plates is fixedly connected to the top of the furnace, and the other end is fixed to the support frame; A heat channel is provided inside the heat exchange plate, the inlet of the heat channel is located at the bottom of the heat exchange plate, the outlet of the heat channel is located at the top of the heat exchange plate, and the outlet of the heat channel and the inlet of the heat channel are at diagonal positions of the heat exchange plate; The inlet of each of the hot channels is communicated with the interior of the furnace, and the outlet of each of the hot channels is communicated with the smoke collecting pipe.

2. The plate heat exchanger according to claim 1, It is characterized in that The heat exchange plate is a hollow structure, and a partition is provided near the outlet of the heat channel, with a gap between the bottom of the partition and the heat exchange plate.

3. The plate heat exchanger according to claim 2, It is characterized in that The cross-sectional area of ​​the inlet of the heat channel is larger than the cross-sectional area of ​​the gap, and the cross-sectional area of ​​the gap is larger than the cross-sectional area of ​​the outlet of the heat channel.

4. The plate heat exchanger according to claim 1, It is characterized in that An inclined charging port is provided at the end of the furnace, and an ash cleaning port is provided at the bottom of the charging port.

5. The plate heat exchanger according to any one of claims 1 to 4, It is characterized in that A heat-resistant glass window is arranged on the side of the furnace, and a secondary air inlet hole is arranged on the bottom of the furnace.

6. The plate heat exchanger according to any one of claims 1 to 4, It is characterized in that A fan is arranged on the side of the furnace, and the fan faces the end of the heat exchange plate.

7. The plate heat exchanger according to any one of claims 1 to 4, It is characterized in that The bottom of the support frame is provided with universal wheels.

8. The plate heat exchanger according to any one of claims 1 to 4, It is characterized in that The support frame is provided with a shell, and each of the heat exchange plates is located in the shell; The shell contains water, and the top of the shell is provided with a water outlet, and the bottom of the shell is provided with a water inlet; The water inlet and the water outlet are connected via a circulating water circuit, and a heat sink and a power pump are arranged on the circulating water circuit.

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