CN219607778U - Heat exchanger device - Google Patents
Heat exchanger device Download PDFInfo
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- CN219607778U CN219607778U CN202320849108.2U CN202320849108U CN219607778U CN 219607778 U CN219607778 U CN 219607778U CN 202320849108 U CN202320849108 U CN 202320849108U CN 219607778 U CN219607778 U CN 219607778U
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Abstract
The utility model belongs to the field of heat exchangers, and particularly relates to a heat exchanger device. Comprises a heat exchanger box body, a high-temperature medium outlet and a high-temperature medium inlet which are respectively connected with the upper end and the lower end of the heat exchanger box body; the heat exchanger box body comprises at least one low-temperature medium liquid box body, the low-temperature medium liquid box body is positioned between the high-temperature medium outlet and the high-temperature medium inlet, and the high-efficiency heat exchange tube is U-shaped, is connected inside the low-temperature medium liquid box body through the high-efficiency heat exchange tube fixing plate and is communicated with the low-temperature medium inlet and the low-temperature medium outlet. The utility model can effectively improve the heat exchange efficiency, avoid heat loss generated by the high-temperature medium in the heat exchange, and improve the utilization rate of the high-temperature medium, thereby improving the heat efficiency.
Description
Technical Field
The utility model belongs to the field of heat exchangers, and particularly relates to a heat exchanger device.
Background
A large amount of waste gas and flue gas are discharged in industrial production, and the waste gas and flue gas contain a large amount of waste heat and can be used for heating water so as to recycle the waste heat. However, the traditional heat exchanger structure has low heat exchange efficiency, and is difficult to fully absorb heat in a high-temperature medium. In order to improve the recycling rate of the gas waste heat, a heat exchanger structure with high-efficiency heat exchange is needed to be provided.
In addition, the heat exchanger plays an important role in chemical industry, petroleum, power, food and other industrial production, and can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in production, so that the heat exchanger has wide application range. At present, a heat exchanger is generally used for cooling hot fluid, heat emitted by the hot fluid is generally directly discharged to the surrounding environment and cannot be effectively recycled, the heat exchanger is also energy waste, the temperature of the cooled hot fluid after heat exchange is difficult to adjust, the subsequent application of the heat exchanger to the hot fluid is inconvenient, and the heat of the hot fluid is effectively recycled, so that the heat exchanger becomes a difficult problem to be solved in the present day.
Disclosure of Invention
The utility model aims to solve the problems of how to improve the heat exchange efficiency of a heat exchanger, more and better utilize high-grade heat sources, and provides a heat exchanger device capable of simultaneously improving or reducing the temperature of different media.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a heat exchanger apparatus, characterized in that: comprises a heat exchanger box body, a high-temperature medium outlet and a high-temperature medium inlet which are respectively connected with the upper end and the lower end of the heat exchanger box body; the heat exchanger box body comprises at least one low-temperature medium liquid box body, the low-temperature medium liquid box body is positioned between a high-temperature medium outlet and a high-temperature medium inlet and comprises a low-temperature medium inlet, a low-temperature medium outlet, a high-efficiency heat exchange tube and a medium separation baffle, the low-temperature medium inlet and the low-temperature medium outlet are distributed up and down and are connected to one side of the low-temperature medium liquid box body, and an observation and decontamination opening is formed in the low-temperature medium liquid box body; the high-efficiency heat exchange tube is U-shaped, is connected to the inside of the low-temperature medium liquid box body through the high-efficiency heat exchange tube fixing plate, is communicated with the low-temperature medium inlet and the low-temperature medium outlet, and is separated by the medium separation partition plate; two longitudinal rows of high-temperature medium baffles are vertically connected to the high-efficiency heat exchange tube fixing plate, each row comprises a plurality of baffles, and each baffle is arranged between the upper high-efficiency heat exchange tube and the lower high-efficiency heat exchange tube; the low-temperature medium inlet and the low-temperature medium outlet are both provided with temperature sensors, and the high-temperature medium inlet is provided with an electric flow regulating valve for regulating flow.
When the plurality of low-temperature medium liquid tanks are arranged, the inside of each tank is also separated by a medium separation baffle, and each tank is respectively provided with a low-temperature medium inlet and outlet for introducing different low-temperature mediums.
The low-temperature medium comprises seawater, ammonia water and distilled water, the high-temperature medium comprises high-temperature steam, flue gas and high-temperature hot water, when the low-temperature medium is a corrosive medium, the parts contacted with the medium are all subjected to corrosion prevention treatment, and the high-efficiency heat exchange tube is made of titanium.
The arrangement mode of the high-efficiency heat exchange tubes is cross arrangement, the first-layer high-efficiency heat exchange tubes are arranged in parallel, the second-layer high-efficiency heat exchange tubes and the first-layer high-efficiency heat exchange tubes are crossed to form an included angle of 45 degrees, and the pattern heat exchange tubes and the tooth heat exchange tubes can be adopted.
The observation dirt cleaning port is of a sealing structure made of transparent materials.
The heat exchanger box body comprises an inner box body and an outer box body, and a heat insulation layer is added between the inner box body and the outer box body.
The heat exchanger device is connected with a boiler flue gas outlet through bolts through a square flange device installed at a high-temperature medium inlet and outlet, or is independently arranged, or is arranged in parallel or is connected with a plurality of heat exchangers in parallel, and the high-temperature medium inlet and outlet are connected through a flange.
The beneficial effects of the utility model are as follows:
1. the low-temperature medium enters the low-temperature medium box from the low-temperature medium inlet and flows out from the low-temperature medium outlet through the inside of the high-efficiency heat exchange tube, the high-temperature medium flows out from the high-temperature inlet and flows out from the outside of the tube heat tube, and exchanges heat with the low-temperature medium inside, and then flows out, wherein the high-temperature medium flows in the process to pass through the high-temperature medium baffle inside, so that the high-temperature medium can exchange heat with the high-efficiency heat exchange tube completely, the loss is avoided, the heat insulation layer is arranged outside the heat exchange box, the heat conduction between the high-temperature medium and the atmosphere is avoided, the heat is lost, the inner wall and the outer wall of the high-efficiency heat exchange tube are provided with thread patterns or teeth, the heat exchange efficiency is improved, meanwhile, the heating requirement of the low-temperature medium can be met after the process, and the energy is saved to the maximum extent.
2. The low-temperature medium inlet and outlet are provided with temperature sensors, so that the temperature of the low-temperature medium can be monitored in real time, if the temperature reaches the requirement, the flow of the high-temperature medium can be reduced or cut off, and the consumption of the high-temperature medium is reduced as much as possible on the premise of meeting the requirement.
3. The square flange device is arranged at the inlet and the outlet of the high-temperature medium, can be used together with matched facilities, or is independently placed, and the waste heat is connected with the flange through a pipeline and can be used singly or used together in parallel.
4. The heat exchanger device is provided with the observation and decontamination port, when the device is used, the internal flowing state of the high-temperature medium can be observed, when the high-temperature medium is smoke, the state that the smoke ash remains on the high-efficiency heat exchange tube can be observed, if the outer wall of the high-efficiency heat exchange tube is seriously wrapped, the observation and decontamination port can be opened, and the outer surface of the high-efficiency heat exchange tube is cleaned by using the high-pressure water gun or the brush, so that the heat exchange performance is ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a layout of high-efficiency heat exchange tubes in single-medium heat exchange;
FIG. 3 is a layout of high-efficiency heat exchange tubes during multi-medium heat exchange;
FIG. 4 is a layout of a high temperature media baffle and a high efficiency heat exchange tube fixing plate;
FIG. 5 is a diagram of a high efficiency heat exchange tube shape;
FIG. 6 is an enlarged view of a portion of a patterned heat exchanger tube wall;
FIG. 7 is an enlarged view of a portion of a wall of a toothed heat exchanger tube;
FIG. 8 is a schematic view of a thermal barrier structure;
FIG. 9 is a schematic diagram of an electric flow regulator valve;
in the figure, 1. A low-temperature medium inlet, 2. A low-temperature medium outlet, 1'. A low-temperature medium 2 inlet, 2'. A low-temperature medium 2 outlet, 3. A high-temperature medium inlet, 4. A high-temperature medium outlet, 5. A heat exchanger box, 51. An inner box, 52. An outer box, 6. A high-efficiency heat exchange tube, 7. A high-temperature medium baffle, 8. A high-efficiency heat exchange tube fixing plate, 9. A view purge port, 10. A low-temperature medium box, 11. A low-temperature inlet sensor, 12. A low-temperature outlet sensor, 13. A medium separation baffle, 14. A heat insulation layer, 15. An electric flow regulating valve.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
examples
As shown in fig. 1, a heat exchanger device comprises a heat exchanger box 5, a high-temperature medium outlet 4 and a high-temperature medium inlet 3 which are respectively connected with the upper end and the lower end of the heat exchanger box; as shown in fig. 2, the heat exchanger box 5 includes a low-temperature medium liquid box 10, the low-temperature medium liquid box 10 is located between a high-temperature medium outlet 4 and a high-temperature medium inlet 3, and includes a low-temperature medium inlet 1, a low-temperature medium outlet 2, a high-efficiency heat exchange tube 6, and a medium separation partition 13, the low-temperature medium inlet 1 and the low-temperature medium outlet 2 are vertically distributed and connected to one side of the low-temperature medium liquid box 10, and an observation dirt-removing port 9 of a sealing structure made of transparent material is provided on the low-temperature medium liquid box 10; as shown in fig. 5, the high-efficiency heat exchange tube 6 is U-shaped, is connected to the inside of the low-temperature medium liquid box 10 through the high-efficiency heat exchange tube fixing plate 8, is communicated with the low-temperature medium inlet 1 and the low-temperature medium outlet 2, and is separated by the medium separation partition 13; as shown in fig. 4, the high-efficiency heat exchange tube fixing plate 8 is vertically connected with two longitudinal rows of high-temperature medium baffles 7, each row comprises a plurality of baffles, and each baffle is arranged between the upper high-efficiency heat exchange tube 6 and the lower high-efficiency heat exchange tube 6; the low-temperature medium inlet 1 and the low-temperature medium outlet 2 are respectively provided with a temperature sensor, and the high-temperature medium inlet 3 is provided with an electric flow regulating valve 15 for regulating flow.
As shown in fig. 3, when the number of the low-temperature medium liquid tanks 10 is plural, the internal parts of the tanks are also separated by the oblique medium separation partition 13, each tank is respectively provided with a low-temperature medium inlet and outlet for introducing different low-temperature mediums, and the low-temperature medium liquid tank can be used in a scene requiring different types of low-temperature heat sources, the low-temperature heat source tank is divided into plural parts, the plurality of low-temperature heat source inlets and outlets are added, and the same low-temperature heat source is used for heating.
The low-temperature medium comprises seawater, ammonia water and distilled water, the high-temperature medium comprises high-temperature steam, flue gas and high-temperature hot water, when the low-temperature medium is a corrosive medium, the parts contacted with the medium are all subjected to corrosion prevention treatment, and the high-efficiency heat exchange tube is made of titanium.
As shown in fig. 2 and fig. 3, the arrangement mode of the high-efficiency heat exchange tubes is cross arrangement, the first-layer high-efficiency heat exchange tubes are arranged in parallel, the second-layer high-efficiency heat exchange tubes are crossed with the first-layer high-efficiency heat exchange tubes to form an included angle of 45 degrees, when the high-temperature medium passes through the high-efficiency heat exchange tubes, the high-temperature medium can exchange heat with the first-layer high-efficiency heat exchange tubes, after the heat exchange, the high-temperature medium flows upwards on two sides of the tubes after being blocked by the first-layer high-efficiency heat exchange tubes, just can exchange heat with the second-layer high-efficiency heat exchange tubes, and thus the high-temperature medium can fully absorb heat, and waste is avoided. The heat exchange tube can adopt a pattern heat exchange tube as shown in fig. 6 and a tooth heat exchange tube as shown in fig. 7, so that the high-temperature medium passes through the outer surface, the medium is easier to stay in the surface of the high-efficiency heat exchange tube and exchanges heat with the medium in the tube, meanwhile, the flow rate of the medium in the tube is reduced when the medium passes through the inner surface of the pattern or the pitted surface, the heat exchange efficiency with the high-temperature medium is improved, but the height of the pattern or the pitted surface is not too large, the first reason is that the processing is difficult, the hardness of the pattern or the pitted surface with high surface of the high-efficiency heat exchange tube is high compared with that of the material of the plain surface, and the cost is greatly increased. And secondly, the flow speed of the medium is affected, if the pressure loss is large, the medium flow is not smooth, and the heat exchange is affected.
As shown in fig. 5, the high-efficiency heat exchange tube is arranged in a U-shaped structure: the high-efficiency heat exchange tubes of the heat exchanger used in large scale at present are straight tube sections, but under the condition of the same diameter, the U-shaped high-efficiency heat exchange tube has large heat exchange area, simple and compact structure, high sealing performance, convenient maintenance and cleaning, less metal quantity at high temperature and high pressure and low manufacturing cost, and meanwhile, the U-shaped high-efficiency heat exchange tube has only one tube plate, good heat compensation performance, two ends of the U-shaped high-efficiency heat exchange tube are fixed on the one tube plate, and the U-shaped high-efficiency heat exchange tube can freely stretch out and draw back, has no heat stress, good heat compensation, stronger pressure bearing capacity, higher flow velocity and good heat transfer performance.
As shown in fig. 8, the heat exchanger box 5 includes an inner box 51 and an outer box 52, between which a heat insulation layer 14 is added, so as to prevent the heat exchange between the box and the outside and avoid heat loss.
The heat exchanger device is connected with a boiler flue gas outlet through bolts through a square flange device installed at a high-temperature medium inlet and outlet, or is independently arranged, or is arranged in parallel or is connected with a plurality of heat exchangers in parallel, and the high-temperature medium inlet and outlet are connected through a flange.
After the heat exchange device is installed, a low-temperature medium enters the box from the low-temperature medium inlet 1 and flows out through the low-temperature medium outlet 2 after passing through the inside of the high-efficiency heat exchange tube 6, a high-temperature medium flows in through the high-temperature medium inlet 3 according to the arrow direction in the figure 1, exchanges heat with the low-temperature medium inside the high-efficiency heat exchange tube 6, and flows out from the high-temperature medium outlet 4, wherein the high-temperature medium flows in through the inside high-temperature medium baffle 7, so that the part exchanges heat with the high-efficiency heat exchange tube 6 completely, the loss is avoided, the heat insulation layer 14 can avoid heat conduction between the high-temperature medium and the atmosphere, the heat loss is avoided, the inner wall and the outer wall of the high-efficiency heat exchange tube 6 are all provided with screw threads or teeth, the heat exchange amount is increased, meanwhile, the low-temperature medium enters from the upper part, the high-temperature medium enters from the lower part to form countercurrent heat exchange, and the heat exchange efficiency is improved again. After a series of special designs, the requirements of low-temperature media can be met, and the energy is saved to the maximum extent.
Meanwhile, temperature sensors are arranged at the low-temperature medium inlet and outlet, an electric flow regulating valve for regulating the flow of the high-temperature medium is arranged at the high-temperature medium inlet, and when the temperature of the low-temperature medium outlet reaches the user requirement, the flow regulating valve is slowly closed at the moment, so that energy is saved. When the outlet temperature of the low-temperature medium is lower than a certain value, the flow regulating valve is opened again, the outlet temperature required by a user is ensured through repeated opening and closing of the flow regulating valve, and a certain temperature value can be stably output, so that the stable operation of the whole system is indirectly ensured.
As shown in fig. 4, the length of the straight section of the high-efficiency heat exchange tube can be lengthened, and after the length is changed, 1 reinforcing fixed plate is needed to be added at intervals of 1 meter, so that the aim of avoiding the mutual extrusion of the high-efficiency heat exchange tube due to gravity is achieved, and the channel for medium circulation is narrowed, so that the high-temperature medium circulation is affected. Because the high-efficiency heat exchange tubes are arranged in a crossed manner, part of the positions of the high-efficiency heat exchange tubes are not arranged in the box body, if the high-efficiency heat exchange tubes are not blocked, the high-temperature medium can directly flow away from the parts to lose heat, a blocking plate is required to be added at the parts to block the high-temperature medium, and the medium is forced to flow through the surfaces of the high-efficiency heat exchange tubes to exchange heat with the low-temperature medium in the tubes, so that the loss is avoided.
Claims (7)
1. A heat exchanger apparatus, characterized in that: comprises a heat exchanger box body, a high-temperature medium outlet and a high-temperature medium inlet which are respectively connected with the upper end and the lower end of the heat exchanger box body; the heat exchanger box body comprises at least one low-temperature medium liquid box body, the low-temperature medium liquid box body is positioned between a high-temperature medium outlet and a high-temperature medium inlet and comprises a low-temperature medium inlet, a low-temperature medium outlet, a high-efficiency heat exchange tube and a medium separation baffle, the low-temperature medium inlet and the low-temperature medium outlet are distributed up and down and are connected to one side of the low-temperature medium liquid box body, and an observation and decontamination opening is formed in the low-temperature medium liquid box body; the high-efficiency heat exchange tube is U-shaped, is connected to the inside of the low-temperature medium liquid box body through the high-efficiency heat exchange tube fixing plate, is communicated with the low-temperature medium inlet and the low-temperature medium outlet, and is separated by the medium separation partition plate; two longitudinal rows of high-temperature medium baffles are vertically connected to the high-efficiency heat exchange tube fixing plate, each row comprises a plurality of baffles, and each baffle is arranged between the upper high-efficiency heat exchange tube and the lower high-efficiency heat exchange tube; the low-temperature medium inlet and the low-temperature medium outlet are both provided with temperature sensors, and the high-temperature medium inlet is provided with an electric flow regulating valve for regulating flow.
2. A heat exchanger apparatus according to claim 1, wherein: when the plurality of low-temperature medium liquid tanks are arranged, the inside of each tank is also separated by a medium separation baffle, and each tank is respectively provided with a low-temperature medium inlet and outlet for introducing different low-temperature mediums.
3. A heat exchanger apparatus according to claim 1, wherein: the low-temperature medium comprises seawater, ammonia water and distilled water, the high-temperature medium comprises high-temperature steam, flue gas and high-temperature hot water, when the low-temperature medium is a corrosive medium, the parts contacted with the medium are all subjected to corrosion prevention treatment, and the high-efficiency heat exchange tube is made of titanium.
4. A heat exchanger apparatus according to claim 1, wherein: the arrangement mode of the high-efficiency heat exchange tubes is cross arrangement, the first-layer high-efficiency heat exchange tubes are arranged in parallel, the second-layer high-efficiency heat exchange tubes and the first-layer high-efficiency heat exchange tubes are crossed to form an included angle of 45 degrees, and the pattern heat exchange tubes and the tooth heat exchange tubes can be adopted.
5. A heat exchanger apparatus according to claim 1, wherein: the observation dirt cleaning port is of a sealing structure made of transparent materials.
6. A heat exchanger apparatus according to claim 1, wherein: the heat exchanger box body comprises an inner box body and an outer box body, and a heat insulation layer is added between the inner box body and the outer box body.
7. A heat exchanger device according to any one of claims 1 to 6, wherein: the heat exchanger device can be arranged at a boiler flue gas outlet and connected by bolts, or independently arranged, or a plurality of heat exchanger devices are arranged in parallel and side by side, and a high-temperature medium inlet and a high-temperature medium outlet are connected by using a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320849108.2U CN219607778U (en) | 2023-04-17 | 2023-04-17 | Heat exchanger device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320849108.2U CN219607778U (en) | 2023-04-17 | 2023-04-17 | Heat exchanger device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219607778U true CN219607778U (en) | 2023-08-29 |
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ID=87757654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320849108.2U Active CN219607778U (en) | 2023-04-17 | 2023-04-17 | Heat exchanger device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219607778U (en) |
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2023
- 2023-04-17 CN CN202320849108.2U patent/CN219607778U/en active Active
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