CN219368463U - High-efficiency heat exchanger - Google Patents
High-efficiency heat exchanger Download PDFInfo
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- CN219368463U CN219368463U CN202320958796.6U CN202320958796U CN219368463U CN 219368463 U CN219368463 U CN 219368463U CN 202320958796 U CN202320958796 U CN 202320958796U CN 219368463 U CN219368463 U CN 219368463U
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Abstract
The utility model belongs to the technical field of heat exchange equipment, and particularly relates to a high-efficiency heat exchanger, which comprises a shell and is characterized in that: the inside of the shell is provided with a vertical smoke guide cavity and a heat exchange cavity, the smoke guide cavity is separated from the heat exchange cavity by a heat conduction component, the top of the smoke guide cavity is communicated with a smoke outlet, the bottom of the smoke guide cavity is communicated with a smoke inlet, the top of the heat exchange cavity is provided with a spraying device, a spray head of the spraying device faces the heat conduction component, and the bottom of the heat exchange cavity is provided with a liquid outlet. According to the utility model, high-heat flue gas flows in the flue gas guide cavity from bottom to top, heat exchange liquid sprayed out by the spray device at the top of the heat exchange cavity flows from top to bottom, and heat offset occurs between the flue gas and the heat exchange liquid on the wall adjacent to the heat exchange cavity and the flue gas guide cavity, so that rapid heat exchange is realized, and heat exchange is continuously performed all the time in the whole flowing process of the heat exchange liquid, so that the heat can be recovered and utilized to the greatest extent, and the heat exchange efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of heat exchange equipment, and particularly relates to a high-efficiency heat exchanger.
Background
A large amount of high-heat smoke can be generated in industrial production, and if the smoke carrying a large amount of heat is directly discharged into the air, a large amount of energy is wasted, the air quality is influenced, and the environment is damaged. In order to solve the problem, the prior art uses a heat exchanger to recover heat, but the prior heat exchanger usually uses a mode of transverse smoke and longitudinal heat exchange medium, for example, chinese patent publication No. CN107843131B discloses a method and a device for recovering waste heat of high-temperature dust-containing flue gas, the high-temperature flue gas flows transversely in the heat exchanger, air flows as a heat exchange medium along a direction perpendicular to a flue, and heat conversion is realized by using staggered flow between the flue gas and the air. However, due to the limited staggered area between the flue gas and the air, the heat exchange efficiency of the heat exchange mode is low, and a large amount of heat still cannot be effectively recovered.
Disclosure of Invention
The utility model aims to solve the technical problems that: overcomes the defects of the prior art, provides a high-efficiency heat exchanger, can increase the heat exchange area between a heat exchange medium and smoke and improves the heat exchange efficiency.
The technical scheme adopted for solving the technical problems is as follows: a high efficiency heat exchanger comprising a housing, characterized in that: the shell is internally provided with a vertical smoke guide cavity and a heat exchange cavity, the smoke guide cavity and the heat exchange cavity are separated by a heat conduction component, the top of the smoke guide cavity is communicated with a smoke outlet, the bottom of the smoke guide cavity is communicated with a smoke inlet, the top of the heat exchange cavity is provided with a spraying device, a spray head of the spraying device faces the heat conduction component, and the bottom of the heat exchange cavity is communicated with a liquid outlet.
Further, the bottom of the shell is provided with a heat collection cavity, the top of the shell is provided with smoke discharging cavities, the number of the smoke discharging cavities is more than two, the top of each smoke discharging cavity is communicated with a smoke outlet through the smoke discharging cavity, and the bottom of each smoke discharging cavity is communicated with a smoke inlet through the heat collection cavity.
Further, the flue gas inlet is formed in the side wall of the heat collection cavity, and the condensed water outlet is formed in the bottom of the heat collection cavity.
Further, the inner wall surface of the heat exchange chamber is rough.
Further, the spraying device is communicated with a liquid inlet pipe, and a flow regulating valve is arranged on the liquid inlet pipe.
Further, the liquid outlet is communicated with the liquid outlet pipe.
Preferably, the heat conducting component is a heat conducting plate, and the spraying device comprises a plurality of spray heads which are distributed along the transverse direction of the heat conducting plate.
Further, the heat exchange cavities are distributed with the smoke guide cavities at intervals, and the heat exchange cavities are arranged on two sides of each smoke guide cavity.
Preferably, the heat conduction component is a smoke guide tube, and the outer side of the smoke guide tube is a heat exchange cavity, and the inner side of the smoke guide tube is a smoke guide cavity.
Further, at least two spray heads are arranged on the outer side of each smoke guide tube, and more than two spray heads are distributed along the circumferential direction of the smoke guide tube.
Compared with the prior art, the utility model has the beneficial effects that:
1. because the smoke guide cavity and the heat exchange cavity are separated by the heat conduction component, high-heat smoke flows from bottom to top in the smoke guide cavity, heat exchange liquid sprayed out by the spray device at the top of the heat exchange cavity flows from top to bottom under the action of gravity, and heat is opposite to the heat exchange liquid on the heat conduction component, so that rapid heat exchange is realized, and in the process of downward flowing of the heat exchange liquid, heat exchange is continuously carried out all the time, so that the heat exchange time is greatly prolonged, the heat can be recycled to the greatest extent, and the heat exchange efficiency is improved.
2. Because the bottom of the shell is provided with the heat collection cavity, the high-heat flue gas is firstly collected in the heat collection cavity and then respectively enters the smoke guide cavities, so that the flue gas quantity entering each smoke guide cavity is more uniform, and the heat exchange effect is more stable; because the top of the shell is provided with the smoke discharging cavity, the smoke after heat exchange of the smoke discharging cavities is firstly collected in the smoke discharging cavity and then discharged through the smoke outlet, the smoke discharging position is more uniform, and the stable discharge of the smoke is facilitated.
3. Because the flue gas inlet is formed in the side wall of the heat collection cavity, high-heat flue gas enters the heat collection cavity from the side surface, so that the flue gas is collected in the heat collection cavity, and the flue gas can be more uniformly dispersed and enters each smoke guide cavity; the bottom of the heat collection cavity is provided with a condensed water outlet which can be communicated with a condensed water collector, so that condensed liquid drops on the inner wall of the smoke guide cavity and the heat collection cavity can be conveniently guided out and collected.
4. The inner wall surface of the heat exchange cavity is rough, so that the downward flow path of the heat exchange liquid is longer, the heat exchange time is prolonged, and the heat exchange efficiency is further improved.
5. Because the flow regulating valve is arranged between the spraying device and the liquid inlet pipe, the flow velocity of the heat exchange liquid can be regulated through the flow regulating valve, so that the heat exchange process is more controllable.
6. The heat conducting plate is adopted as the heat conducting component, and the spray heads are transversely distributed along the heat conducting plate, so that almost all areas of the heat conducting plate are effective heat exchange areas, and high-heat flue gas can be fully subjected to heat exchange with heat exchange liquid when passing through the smoke conducting cavity, and the heat exchange efficiency is greatly improved.
7. Because the smoke guide cavities and the heat exchange cavities are distributed at intervals, the heat exchange cavities are arranged on two sides of each smoke guide cavity, so that effective heat exchange can be carried out on two sides of all the smoke guide cavities, and the heat exchange efficiency is further improved.
8. The smoke guide tube is used as the heat conduction component, and heat exchange liquid exchanges heat with high-heat smoke in the smoke guide tube in the process of flowing through the outer wall of the smoke guide tube, so that a high-efficiency heat exchange effect can be achieved.
9. Because the outside of the smoke guide tube is provided with at least two spray heads, more than two spray heads are distributed along the circumference of the smoke guide tube, the periphery of the smoke guide tube can be covered with heat exchange liquid sprayed by the spray heads as much as possible, and heat exchange is more sufficient.
10. The utility model greatly increases the effective heat exchange area of the heat exchanger, prolongs the heat exchange time and greatly improves the heat exchange efficiency of the heat exchanger through simple structural design.
Drawings
FIG. 1 is a schematic view of the internal structure of the first embodiment;
FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;
FIG. 3 is a schematic view of the internal structure of the second embodiment;
fig. 4 is a schematic cross-sectional structure of B-B in fig. 3.
Marked in the figure as:
1. a housing; 2. a smoke guiding cavity; 21. a heat collection chamber; 22. a smoke discharging cavity; 23. a condensed water outlet; 3. a heat exchange cavity; 30. a liquid outlet; 31. a liquid inlet pipe; 32. a liquid outlet pipe; 4. a spraying device; 40. a spray head; 41, a flow regulating valve; 5. a heat conductive plate; 6. a smoke guide tube; 7. a flue gas inlet; 8. and a flue gas outlet.
Detailed Description
The utility model is further described below with reference to the accompanying examples:
when the utility model is in use, one end close to the ground is defined as the bottom end or the lower end, and the other end far from the ground is defined as the top end or the upper end respectively. The direction towards the centre of the heat exchange or smoke guide cavity is defined as the inner side, whereas the direction away from the centre of the cavity is defined as the outer side.
Example 1
As shown in fig. 1 and 2, a plurality of heat conducting plates 5 are vertically arranged side by side in a shell 1 of the heat exchanger, the heat conducting plates 5 divide the inner space of the shell 1 into a vertical smoke guiding cavity 2 and a heat exchanging cavity 3, the smoke guiding cavities 2 and the heat exchanging cavities 3 are distributed at intervals, the number of the smoke guiding cavities 2 is more than two, and the heat exchanging cavities 3 are arranged on two sides of each smoke guiding cavity 2. In order to ensure that high-heat flue gas can uniformly enter each smoke guide cavity 2, the bottom of the shell 1 is provided with a heat collection cavity 21, the bottom of the smoke guide cavity 2 is communicated with the heat collection cavity 21, the side wall of the heat collection cavity 21 is communicated with the flue gas inlet 7, the bottom is provided with a condensed water outlet 23, and the condensed water outlet 23 can be communicated with a condensed water collector. In order to facilitate the unified discharge of the flue gas, a flue gas discharging cavity 22 is arranged at the top of the shell 1, the top of the flue gas discharging cavity 2 is communicated with the flue gas discharging cavity 22, and the top of the flue gas discharging cavity 22 is communicated with the flue gas outlet 8. In this embodiment, the number of the smoke guide cavities 2 is more than two, and only one smoke guide cavity 2 can be arranged, the top of the smoke guide cavity 2 is directly communicated with the smoke outlet 8, the bottom of the smoke guide cavity is directly communicated with the smoke inlet 7, and only more than two smoke guide cavities 2 are arranged, so that the overall heat exchange efficiency and heat exchange speed of the heat exchanger can be effectively improved, and the heat exchanger is more beneficial to actual production and use.
The top of the heat exchange cavity 3 is provided with a spraying device 4, the spraying device 4 is communicated with a liquid inlet pipe 31, and a flow regulating valve 41 is arranged on the liquid inlet pipe 31. Only one total flow regulating valve 41 can be arranged, and the flow regulating valves 41 can be respectively arranged on the liquid inlet pipes 31 communicated with each spraying device 4, so that the flow of each liquid inlet pipe 31 can be controlled. The spray device 4 is uniformly provided with a plurality of spray heads 40, the spray heads 40 face the direction of the heat conducting plate 5, and the spray heads 40 are uniformly distributed along the transverse direction of the heat conducting plate 5, so that heat exchange liquid can be uniformly sprayed and flow to almost the whole area of the heat conducting plate 5, and the heat exchange area is increased. The bottom of the heat exchange cavity 3 is communicated with a liquid outlet 30, and the liquid outlet 30 is communicated with a liquid outlet pipe 32, so that the heat exchange medium after heat exchange is conveniently guided out and recovered.
In order to ensure good heat exchange effect and increase heat exchange efficiency, the heat conducting plate 5 can be made of materials with good heat conduction performance such as aluminum or zinc with rough surface, so that the surface of the inner wall of the heat exchange cavity 3 is rough, thereby prolonging the flow path of heat exchange liquid and improving heat exchange efficiency.
The working principle and the specific implementation mode of the utility model are as follows:
in this embodiment, water is used as heat exchange liquid, and high-heat flue gas enters the heat collection cavity 21 from the flue gas inlet 7 and is collected in the heat collection cavity 21, and then uniformly enters each of the smoke guide cavities 2 arranged side by side and flows upwards along the smoke guide cavities 2. The flow regulating valve 41 is opened, cold water is sprayed to the upper part of the heat conducting plate 5 through the spray head 40, then flows downwards along the side wall of the heat conducting plate 5, and exchanges heat with high-heat smoke flowing upwards in the smoke guiding cavity 2 in the downwards flowing process, and the cold water and the high-heat smoke realize heat opposite flushing on the heat conducting plate 5, so that quick heat exchange can be realized. Because the inner wall surface of the heat exchange cavity 3 is rough, the flow path of water can be effectively increased, the water flow time is prolonged, the effective heat exchange area and time are increased, and the effect of rapid and efficient heat exchange is realized. Hot water generated by heat exchange flows out from the liquid outlet 30 and can be collected and recycled through the liquid outlet pipe 32. The flue gas after heat exchange flows upwards to enter the flue gas discharging cavity 22, and then is discharged continuously through the flue gas outlet 8.
Example two
As shown in fig. 3 and 4, the difference between the present embodiment and the first embodiment is that the heat conduction member adopts the chimney 6, and the inner side of the chimney 6 is the smoke guiding cavity 2, and the outer side is the heat exchanging cavity 3. In this embodiment, a plurality of smoke guide pipes 6 are arranged in the casing 1, so that effective heat exchange can be realized in all directions of each smoke guide cavity 2, more than two spray heads 40 are arranged on the outer side of each smoke guide pipe 6, and the plurality of spray heads 40 are distributed along the circumferential direction of the smoke guide pipes 6, so that the whole cylinder wall of each smoke guide pipe 6 can perform effective heat exchange, and the heat exchange efficiency is improved. In this embodiment, two spray heads 40 are disposed on the outer side of each chimney 6, and the two spray heads 40 are distributed relatively along the top circumferential direction of the chimney 6.
When the heat exchange work is carried out, the high-heat flue gas is uniformly dispersed into the smoke guide cavity 2 by the heat collection cavity 21 and flows from bottom to top along the smoke guide tube 6. The spray head 40 sprays the heat exchange liquid onto the side wall of the smoke guide tube 6, so that the heat exchange liquid can exchange heat with the high-heat smoke in the smoke guide cavity 2, and quick and effective heat exchange is realized.
The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. Any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present utility model are possible without departing from the technical substance of the present utility model.
Claims (10)
1. A high efficiency heat exchanger comprising a housing, characterized in that: the shell is internally provided with a vertical smoke guide cavity and a heat exchange cavity, the smoke guide cavity and the heat exchange cavity are separated by a heat conduction component, the top of the smoke guide cavity is communicated with a smoke outlet, the bottom of the smoke guide cavity is communicated with a smoke inlet, the top of the heat exchange cavity is provided with a spraying device, a spray head of the spraying device faces the heat conduction component, and the bottom of the heat exchange cavity is communicated with a liquid outlet.
2. A high efficiency heat exchanger according to claim 1, wherein: the bottom of the shell is provided with a heat collection cavity, the top of the shell is provided with smoke discharging cavities, the number of the smoke discharging cavities is more than two, the top of the smoke discharging cavities are communicated with a smoke outlet through the smoke discharging cavities, and the bottom of the smoke discharging cavities are communicated with a smoke inlet through the heat collection cavities.
3. A high efficiency heat exchanger according to claim 2, wherein: the flue gas inlet is arranged on the side wall of the heat collection cavity, and the condensed water outlet is arranged at the bottom of the heat collection cavity.
4. A high efficiency heat exchanger according to claim 1, wherein: the inner wall surface of the heat exchange cavity is rough.
5. A high efficiency heat exchanger according to claim 1, wherein: the spraying device is communicated with a liquid inlet pipe, and a flow regulating valve is arranged on the liquid inlet pipe.
6. A high efficiency heat exchanger according to claim 1, wherein: the liquid outlet is communicated with the liquid outlet pipe.
7. A high efficiency heat exchanger according to any one of claims 1 to 6 wherein: the heat conduction component is a heat conduction plate, and the spraying device comprises a plurality of spray heads which are transversely distributed along the heat conduction plate.
8. A high efficiency heat exchanger according to claim 7, wherein: the heat exchange cavities are distributed with the smoke guide cavities at intervals, and the heat exchange cavities are arranged on two sides of each smoke guide cavity.
9. A high efficiency heat exchanger according to any one of claims 1 to 6 wherein: the heat conduction component is a smoke guide tube, the outer side of the smoke guide tube is a heat exchange cavity, and the inner side of the smoke guide tube is a smoke guide cavity.
10. A high efficiency heat exchanger according to claim 9, wherein: at least two spray heads are arranged on the outer side of each smoke guide tube, and more than two spray heads are distributed along the circumferential direction of the smoke guide tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320958796.6U CN219368463U (en) | 2023-04-25 | 2023-04-25 | High-efficiency heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320958796.6U CN219368463U (en) | 2023-04-25 | 2023-04-25 | High-efficiency heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219368463U true CN219368463U (en) | 2023-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320958796.6U Active CN219368463U (en) | 2023-04-25 | 2023-04-25 | High-efficiency heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219368463U (en) |
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2023
- 2023-04-25 CN CN202320958796.6U patent/CN219368463U/en active Active
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