CN215447523U - Combined type heat exchanger - Google Patents
Combined type heat exchanger Download PDFInfo
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- CN215447523U CN215447523U CN202121904457.7U CN202121904457U CN215447523U CN 215447523 U CN215447523 U CN 215447523U CN 202121904457 U CN202121904457 U CN 202121904457U CN 215447523 U CN215447523 U CN 215447523U
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Abstract
The utility model provides a composite heat exchanger, which mainly comprises a shell-side cylinder, an air inlet chamber, a heat exchange chamber, an exhaust chamber and an Contraband type heat exchange tube set; the air inlet chamber and the heat exchange chamber are respectively arranged at two ends of the shell pass cylinder; the exhaust chamber and the air inlet chamber are integrally connected, and a partition plate is arranged between the exhaust chamber and the air inlet chamber; a smoke passage is arranged in a whole body formed by the shell pass cylinder, the air inlet cavity, the heat exchange cavity, the partition plate and the exhaust cavity in a penetrating manner; a gas path channel is arranged in the wall of the shell pass cylinder body, the gas inlet cavity and the heat exchange cavity are communicated and connected through the gas path channel, and the heat exchange cavity and the exhaust cavity are communicated and connected through an Contraband-type heat exchange tube group; and the air inlet chamber and the air exhaust chamber are respectively provided with an air inlet pipe and an air exhaust pipe. The utility model greatly increases the heat exchange area of the heat exchanger, on one hand, reduces the volume of the heat exchanger, the floor area and the production cost of equipment; on the other hand, under the condition that the length and the diameter of the shell pass cylinder are not increased, the heat exchange efficiency is greatly improved by carrying out secondary heat exchange on high-temperature flue gas.
Description
Technical Field
The utility model mainly relates to the technical field of heat exchangers, in particular to a combined type heat exchanger.
Background
The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is also called as a heat exchanger. The heat exchanger is a common heat exchange device, plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and is widely applied. Shell and tube heat exchangers (also known as shell and tube heat exchangers) are divided wall heat exchangers in which the wall surfaces of tube bundles enclosed in a shell are used as heat transfer surfaces. The heat exchanger has the advantages of simple structure and reliable operation, can be made of various structural materials (mainly metal materials), can be used at high temperature and high pressure, and is the most widely applied type at present; however, with the rapid development of industries such as coal chemical industry and the like, the increase of the emission of flue gas cannot meet the heat exchange requirement by increasing the number and the area of the heat exchangers, meanwhile, the large heat exchanger increases the occupied area, and the operation and the maintenance of the large heat exchanger also provide high requirements.
SUMMERY OF THE UTILITY MODEL
With the rapid development of industries such as coal chemical industry and the like, the increase of the emission of flue gas cannot meet the heat exchange requirement by increasing the number and the area of heat exchangers, meanwhile, the large heat exchanger increases the occupied area, and the operation and the maintenance of the large heat exchanger also provide high requirements.
The technical scheme provided by the utility model is as follows:
the utility model provides a composite heat exchanger, which comprises a shell pass cylinder, an air inlet chamber, a heat exchange chamber, an exhaust chamber and an Contraband type heat exchange tube set, wherein the shell pass cylinder is provided with a shell pass heat exchanger; the air inlet chamber and the heat exchange chamber are respectively arranged at two ends of the shell pass cylinder; the exhaust chamber and the air inlet chamber are integrally connected, and a partition plate is arranged between the exhaust chamber and the air inlet chamber; a smoke passage is arranged in a penetrating manner in the whole formed by the shell pass cylinder, the air inlet cavity, the heat exchange cavity, the partition plate and the exhaust cavity; a gas path channel is arranged in the shell side cylinder wall, the gas inlet cavity and the heat exchange cavity are communicated through the gas path channel, and the heat exchange cavity and the exhaust cavity are communicated through the Contraband-type heat exchange tube group; and the air inlet chamber and the air exhaust chamber are respectively provided with an air inlet pipe and an air exhaust pipe.
Preferably, the air inlet chamber, the heat exchange chamber and the exhaust chamber are all annular and are arranged coaxially with the shell-side cylinder.
Preferably, the Contraband-type heat exchange tube groups are arranged in multiple groups around the axis of the shell-side cylinder, each Contraband-type heat exchange tube group is composed of a plurality of Contraband-type heat exchange tubes, and the axes of the Contraband-type heat exchange tubes in the same group are uniformly distributed along the radius of the shell-side cylinder.
Preferably, the Contraband-type heat exchange tube group is provided with 12 groups around the axis of the shell-side cylinder, and each group of the Contraband-type heat exchange tube group is composed of 4 Contraband-type heat exchange tubes.
Preferably, one end provided with the air inlet chamber is a flue gas inlet end of the shell-side cylinder flue gas passage, and the flue gas inlet end is in an inverted truncated cone shape along the flue gas transmission direction.
The utility model has the beneficial effects that:
the combined heat exchanger provided by the utility model greatly increases the heat exchange area of the heat exchanger, and on one hand, reduces the volume of the heat exchanger, the floor area and the production cost of equipment; on the other hand, under the condition that the length and the diameter of the shell pass cylinder body 1 are not increased, the heat exchange efficiency is greatly improved by carrying out secondary heat exchange on high-temperature flue gas.
Drawings
The utility model and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the utility model.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a half-sectional view of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
As used herein, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the positional or orientational relationship illustrated in the figures to facilitate the description of the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the utility model.
The appearances of the terms first, second, and third, if any, are used for descriptive purposes only and are not intended to be limiting or imply relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention are described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the utility model without making creative efforts, belong to the protection scope of the utility model.
Example 1
With the rapid development of industries such as coal chemical industry and the like, the increase of the emission of flue gas cannot meet the heat exchange requirement by increasing the number and the area of heat exchangers, meanwhile, the large heat exchanger increases the occupied area, and the operation and the maintenance of the large heat exchanger also provide high requirements, aiming at the problems, the utility model provides a composite heat exchanger, and the embodiment of the utility model provides the composite heat exchanger which comprises a shell side cylinder 1, an air inlet cavity 2, a heat exchange cavity 3, an exhaust cavity 4 and an Contraband type heat exchange pipe group; the air inlet chamber 2 and the heat exchange chamber 3 are respectively arranged at two ends of the shell side cylinder 1; the exhaust chamber 4 and the air inlet chamber 2 are integrally connected, and a partition plate 5 is arranged between the exhaust chamber 4 and the air inlet chamber 2 to partition low-temperature air in the air inlet chamber 2 and high-temperature air in the exhaust chamber 4; a smoke passage 6 penetrates through the whole body formed by the shell side cylinder 1, the air inlet cavity 2, the heat exchange cavity 3, the partition plate 5 and the exhaust cavity 4; the wall of the shell-side cylinder 1 is internally provided with a gas path channel 7, the gas inlet cavity 2 is communicated with the heat exchange cavity 3 through the gas path channel 7, and the heat exchange cavity 3 is communicated with the exhaust cavity 4 through an Contraband-type heat exchange tube group; an air inlet pipe 9 and an air outlet pipe 10 are respectively arranged on the air inlet chamber 2 and the air outlet chamber 4.
When the combined heat exchanger related to the embodiment works, high-temperature flue gas passes through the interior of the flue gas channel 6, low-temperature air is filled into the air inlet chamber 2 through the air inlet pipe 9 and is transmitted to the interior of the heat exchange chamber 3 along the air channel 7, and in the process, the shell-side cylinder 1 conducts heat energy carried by the flue gas to the low-temperature air transmitted in the air channel 7, so that preliminary cooling is realized; under the action of air pressure, air in the heat exchange chamber 3 is transmitted into the exhaust chamber 4 along the Contraband-type heat exchange tube group, in the process, the Contraband-type heat exchange tube group is directly contacted with high-temperature flue gas passing through the flue gas channel 6, secondary cooling is realized, and finally the high-temperature air after heat exchange is exhausted from the exhaust pipe 10; the heat exchange area of the heat exchanger is greatly increased, and on one hand, the volume of the heat exchanger is reduced, the floor area is reduced, and the production cost of equipment is reduced; on the other hand, under the condition that the length and the diameter of the shell pass cylinder body 1 are not increased, the heat exchange efficiency is greatly improved by carrying out secondary heat exchange on high-temperature flue gas.
In this implementation, it is preferred that air inlet chamber 2, heat exchange chamber 3 and exhaust chamber 4 are annular and set up with shell side barrel 1 is coaxial, and annular flue gas passageway 6 is the least to the resistance that high temperature flue gas caused, can the maximize reduce and exempt from the frictional resistance loss in the flue gas transmission process, make full use of the heat energy that the flue gas carried.
In order to increase the heat exchange area of the heat exchanger as much as possible and improve the heat exchange rate, in the implementation, preferably, multiple groups of Contraband-type heat exchange tube groups are arranged around the axis of the shell-side cylinder 1, and in order to enable low-temperature air to fully contact each region of high-temperature flue gas, each group of Contraband-type heat exchange tube groups is composed of a plurality of Contraband-type heat exchange tubes 8; the axes of the same group of 'Contraband type' heat exchange tubes 8 are uniformly distributed along the radius of the shell pass cylinder 1, and the 'Contraband type' heat exchange tube group consisting of the 'Contraband type' heat exchange tubes 8 integrally extends to a position close to the center from the outermost edge of the flue gas channel 6, so that heat exchange treatment is carried out on high-temperature flue gas from inside to outside, and the heat exchange area and the heat exchange efficiency are improved to the maximum extent.
The space of the smoke passage 6 in the heat exchanger is limited, and in this embodiment, by taking the manufactured HA-200 composite heat exchanger as an example, in order to avoid the problems that the Contraband-type heat exchange tubes 8 among the groups are crossed, the Contraband-type heat exchange tube groups are too many, and the high-temperature smoke transmission is blocked, and the like, 12 groups of the Contraband-type heat exchange tube groups can be arranged around the axis of the shell-side cylinder 1 according to the section radius, the perimeter and the production experience of the HA-200 composite heat exchanger, and each group of the Contraband-type heat exchange tube groups is composed of 4 Contraband-type heat exchange tubes 8.
For concentrating the flue gas, in this embodiment, it is preferable that the end provided with the gas inlet chamber 2 is a flue gas inlet end of the flue gas passage 6 of the shell-side cylinder 1, and the flue gas inlet end is arranged to be in an inverted truncated cone shape along the flue gas transmission direction.
The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.
Claims (5)
1. A composite heat exchanger is characterized by comprising a shell-side cylinder, an air inlet chamber, a heat exchange chamber, an exhaust chamber and an Contraband-type heat exchange tube set; the air inlet chamber and the heat exchange chamber are respectively arranged at two ends of the shell pass cylinder; the exhaust chamber and the air inlet chamber are integrally connected, and a partition plate is arranged between the exhaust chamber and the air inlet chamber; a smoke passage is arranged in a penetrating manner in the whole formed by the shell pass cylinder, the air inlet cavity, the heat exchange cavity, the partition plate and the exhaust cavity;
a gas path channel is arranged in the shell side cylinder wall, the gas inlet cavity and the heat exchange cavity are communicated through the gas path channel, and the heat exchange cavity and the exhaust cavity are communicated through the Contraband-type heat exchange tube group;
and the air inlet chamber and the air exhaust chamber are respectively provided with an air inlet pipe and an air exhaust pipe.
2. The compound heat exchanger of claim 1, wherein: the air inlet chamber, the heat exchange chamber and the exhaust chamber are all annular and are arranged coaxially with the shell pass cylinder.
3. The compound heat exchanger of claim 1, wherein: the Contraband-type heat exchange tube group is provided with a plurality of groups around the axis of the shell pass cylinder, and each group of Contraband-type heat exchange tube group consists of a plurality of Contraband-type heat exchange tubes; the axes of the same group of the Contraband-type heat exchange tubes are uniformly distributed along the radius of the shell-side cylinder.
4. The compound heat exchanger of claim 1 or 3, wherein: the Contraband-type heat exchange tube group is provided with 12 groups around the axis of the shell-side cylinder, and each group of Contraband-type heat exchange tube group is composed of 4 Contraband-type heat exchange tubes.
5. The compound heat exchanger of claim 1, wherein: the end provided with the air inlet chamber is a flue gas inlet end of the shell pass cylinder flue gas passage, and the flue gas inlet end is arranged to be in an inverted truncated cone shape along the flue gas transmission direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121904457.7U CN215447523U (en) | 2021-08-13 | 2021-08-13 | Combined type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121904457.7U CN215447523U (en) | 2021-08-13 | 2021-08-13 | Combined type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215447523U true CN215447523U (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121904457.7U Active CN215447523U (en) | 2021-08-13 | 2021-08-13 | Combined type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215447523U (en) |
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2021
- 2021-08-13 CN CN202121904457.7U patent/CN215447523U/en active Active
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