CN218673259U - Energy-saving corrosion-resistant heat exchange device - Google Patents
Energy-saving corrosion-resistant heat exchange device Download PDFInfo
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- CN218673259U CN218673259U CN202223234365.XU CN202223234365U CN218673259U CN 218673259 U CN218673259 U CN 218673259U CN 202223234365 U CN202223234365 U CN 202223234365U CN 218673259 U CN218673259 U CN 218673259U
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Abstract
The technical problem to be solved by the utility model is to provide an energy-saving corrosion-resistant heat exchange device, which can improve heat exchange efficiency, reduce corrosion of a shell, a fluid tube bundle and tube plates, and prolong the service life of the device, and comprises a transversely-distributed shell and tube boxes positioned at the left end and the right end of the shell, wherein the tube plates are arranged between the end parts of the tube boxes and the shell, a transversely-distributed baffle is arranged in each tube box, and the baffle divides the tube boxes into an upper cavity and a lower cavity; the heat exchange tube is characterized in that an anti-corrosion layer is arranged on the surface of the tube plate, a plurality of fluid tube bundles and heat exchange tubes are arranged in the shell, the left end and the right end of each fluid tube bundle respectively penetrate through the partition plate and are communicated with the lower cavity of the tube box, and the heat exchange tubes are spirally wound on the outer wall of each fluid tube bundle.
Description
Technical Field
The utility model relates to a heat exchanger field, concretely relates to energy-conserving corrosion resistant heat transfer device.
Background
The heat exchanger is a device for transferring heat of two or more fluids with different temperatures. The heat exchanger is mainly used for transferring the heat of high-temperature fluid to low-temperature fluid in industrial production, so that the temperature of target fluid is increased to reach the index specified by the process flow, and the requirement of an actual production process is met. With the rising of energy prices, the proportion of energy cost in product cost is larger and larger. Energy conservation becomes a problem of increasing concern of the whole society, and energy conservation work is always an important component for developing production and improving competitiveness in industrial departments with large energy consumption. An important way for responding to the call of energy conservation and emission reduction is to preferentially select equipment with higher heat exchange efficiency in production, so that the energy consumption cost is reduced, and meanwhile, the meaningless resource waste is reduced. The traditional heat exchange equipment, namely a shell-and-tube heat exchanger, is mainly used in chemical production, and can show the advantages in high-temperature and high-pressure or corrosive medium operation.
As is well known, a shell-and-tube heat exchanger is a dividing wall type heat exchanger, in which two fluids, cold fluid and hot fluid, are respectively located on two sides of the wall surface of a heat exchange tube bundle, and heat is transferred from the hot fluid to the cold fluid through the wall surface of the tube bundle. For example, the prior art (patent of invention with publication number CN 105135914B) discloses a detachable tube bundle type fixed tube-plate heat exchanger, which mainly comprises a shell, a tube bundle, a tube plate and other parts, wherein the shell is cylindrical, the tube bundle is arranged in the shell in parallel, and two ends of the tube bundle are fixed on the tube plate. Two fluids for heat exchange in a shell-and-tube heat exchanger, wherein one fluid flows in a tube bundle, the flow channel of the fluid is a tube pass, and the liquid is generally to-be-heated liquid; the other fluid flows inside the shell and outside the tube bundle, and the flowing space is the shell side, wherein the liquid is generally a high-temperature liquid medium. In the chemical industry field, some high temperature corrosive liquid medium have many heats, can the heat transfer give the liquid of treating the heating after through the shell side, however, the shortcoming that this exists is, high temperature corrosive liquid medium corrodes shells inner wall and tube bank outer wall easily, reduce life, though can be at surface machining anti-corrosion coating, but anti-corrosion coating area is big, the processing technology is complicated and with high costs, and simultaneously, the shell side volume is big, the high temperature medium velocity of flow is fast, the high temperature medium is low from flowing into outflow heat exchange efficiency, unable abundant heat transfer, can't reduce energy consumption cost.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an energy-conserving corrosion resistant heat transfer device can improve heat exchange efficiency, reduces the corruption of casing and fluid tube bank and tube sheet, improves its life.
The utility model discloses a realize through following technical scheme:
an energy-saving corrosion-resistant heat exchange device comprises a shell and tube boxes, wherein the shell is transversely distributed, the tube boxes are positioned at the left end and the right end of the shell, a tube plate is arranged between each tube box and the end part of the shell, a transversely distributed partition plate is arranged in each tube box, and the tube boxes are divided into an upper cavity and a lower cavity by the partition plates;
the heat exchange tube is spirally wound on the outer wall of the fluid tube bundle, and the left end and the right end of the heat exchange tube are respectively communicated with the upper cavities of the two tube boxes;
the side wall of the left channel box is provided with a first inlet communicated with the lower cavity of the left channel box and a second outlet communicated with the upper cavity of the left channel box, and the side wall of the right channel box is provided with a first outlet communicated with the lower cavity of the right channel box and a second inlet communicated with the upper cavity of the right channel box;
the bottom of the side wall of the shell is provided with a steam inlet, and the top of the side wall of the shell is provided with a steam outlet.
Furthermore, the surfaces of the tube plates on the left side and the right side are provided with a plurality of heat exchange tube diameter-changing devices; the heat exchange tube reducing device is of a tubular structure, one end of the heat exchange tube reducing device is communicated with the upper cavity of the tube box, and the other end of the heat exchange tube reducing device is respectively communicated with the end part of the heat exchange tube through a plurality of branch tubes.
Furthermore, an active carbon net is vertically arranged on the partition board, and the active carbon net separates the inner cavity of the tube box from the left and the right.
Furthermore, the outer walls of the pipe boxes at the left end and the right end are provided with heaters.
Further, the bottom surface of casing is provided with the base, the base is provided with the universal wheel that can lock, the top of casing is provided with a pair of rings.
Compared with the prior art, the utility model the beneficial effect who gains as follows:
1. the high-temperature fluid medium enters from a second inlet of the tube box, then flows out from a second outlet after passing through each heat exchange tube from right to left, the fluid medium to be heated enters from a first inlet, then flows out from a first outlet after passing through each fluid tube bundle from left to right, the heat exchange tubes are spirally wound on the side walls of the fluid tube bundles, the volume of the heat exchange tubes is far smaller than that of the shell in the prior art, the flow rate of the high-temperature fluid medium is greatly reduced, and therefore the heat exchange efficiency is greatly improved, and the heat exchange utilization rate is improved to 70% from 40% in the prior art;
2. the anti-corrosion layer is processed on the surface of the tube plate of the tube box, so that the corrosion problem of a high-temperature liquid medium at an inlet can be effectively solved, and the high-temperature liquid medium flows through the heat exchange tube, so that the high-temperature liquid medium is not in contact with the inner wall of the shell and the outer wall of the fluid tube bundle, the direct corrosion is avoided, and the service lives of the tube plate, the fluid tube bundle and the shell are prolonged;
3. the arrangement of the activated carbon net can effectively adsorb impurities and the like in the liquid, prevent corrosive substances in the liquid from corroding the welding part of the tube plate and improve the durability;
4. the heater can effectively prevent the tube from bending and breaking or being pulled off from the tube plate due to the large temperature difference between the inside and the outside of the tube box;
5. when no high-temperature liquid medium exists, steam in production can enter the shell from the steam inlet to heat liquid in the fluid tube bundle due to low corrosivity of the steam, so that heating of various high-temperature media is realized, and the use is more flexible;
6. the heat exchange device comprises a left pipe box, a right pipe box, a baffle plate and a heat exchange medium, wherein the baffle plates are transversely distributed in the pipe boxes at the left end and the right end, the baffle plate divides the pipe boxes into an upper cavity and a lower cavity, the high-temperature fluid medium firstly enters the upper cavity of the pipe box at the right end and finally flows out of the upper cavity of the pipe box at the left end, the fluid medium to be heated firstly enters the lower cavity of the pipe box at the left end and finally flows out of the lower cavity of the pipe box at the right end, and the fluid medium to be heated and the high-temperature fluid medium exchange heat through the baffle plate, so that the contact time of the heat exchange fluid is prolonged, the contact area is increased, and the heat exchange efficiency is further improved.
Drawings
FIG. 1 is a front view of the energy-saving corrosion-resistant heat exchanger of the present invention;
FIG. 2 is a schematic view of the internal structure of the energy-saving corrosion-resistant heat exchanger of the present invention;
FIG. 3 is a schematic view of a fluid tube bundle and heat exchange tubes according to the present invention;
fig. 4 is a front view of the heat exchange tube reducing device of the present invention;
in the figure: 1. the device comprises a shell, 2, a tube box, 3, a tube plate, 4, a partition plate, 5, a first inlet, 6, a first outlet, 7, a second outlet, 8, a second inlet, 9, a fluid tube bundle, 10, a heat exchange tube, 11, a heat exchange tube reducing device, 12, a heater, 13, a steam inlet, 14, a steam outlet, 15, a lifting ring, 16, a universal wheel, 17 and an activated carbon net.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present invention, it is to be understood that the terms "front", "back", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The present invention will be further explained with reference to the drawings and the embodiments
In order to utilize the heat in the corrosive high-temperature fluid medium, the embodiment discloses an energy-saving corrosion-resistant heat exchange device, which comprises a shell 1 and two pipe boxes 2, as shown in fig. 1-4, wherein the shell 1 is of a tubular structure transversely distributed from left to right, and the two pipe boxes 2 are distributed from left to right and are connected to the left and right ends of the shell 1 in a detachable installation manner. The tube plate 3 is welded between the tube box 2 and the end of the shell 1, the surface of the tube plate 3 facing the tube box 2 is coated with an anti-corrosion layer, in the embodiment, the anti-corrosion layer is made of fluoroplastic coating, a transversely distributed partition plate 4 is assembled in each tube box 2, and the tube box 2 is divided into an upper cavity and a lower cavity by the partition plate 4. The side wall of the left tube box 2 is provided with a first inlet 5 communicated with the lower cavity of the left tube box and a second outlet 7 communicated with the upper cavity of the left tube box, and the side wall of the right tube box 2 is provided with a first outlet 6 communicated with the lower cavity of the right tube box and a second inlet 8 communicated with the upper cavity of the right tube box. In order to reduce the corrosion of impurities contained in the fluid to the heat exchanger, the partition plate 4 is vertically provided with the activated carbon net 17, the activated carbon net 17 divides the inner cavity of the tube box 2 left and right, so that the impurities are prevented from entering the heat exchange tube/fluid tube bundle 9, the service life of the heat exchange device is prolonged, and the service life of the heat exchange device is prolonged to 6 years from the original 3 years.
A plurality of fluid tube bundles 9 and heat exchange tubes 10 are arranged in the shell 1, each heat exchange tube 10 is spirally wound on the outer wall of each fluid tube bundle 9, and the inner wall of each heat exchange tube is coated with an epoxy resin coating, so that the corrosion resistance is improved. The left end and the right end of all the fluid tube bundles 9 penetrate through the partition plates 4 respectively and are communicated with the lower cavities of the tube boxes 2, so that the fluid tube bundles 9 are communicated with the lower cavities of the tube boxes 2 on the left side and the right side, and meanwhile, the tube plates 3 fix the fluid tube bundles 9, so that the vibration of the fluid tube bundles 9 can be reduced, and the stability of the fluid tube bundles 9 is improved. The surfaces of the tube plates 3 on the left side and the right side are provided with a plurality of heat exchange tube diameter-changing devices 11, and the number of the heat exchange tube diameter-changing devices 11 is half of that of the heat exchange tubes. Each heat exchange tube reducing device 11 is of a tubular structure, one end of each heat exchange tube reducing device is communicated with the upper cavity of the tube box 2, and the other end of each heat exchange tube reducing device is communicated with the end parts of the two heat exchange tubes through two branch tubes. By the design, the left end and the right end of the heat exchange tube are respectively communicated with the upper cavities of the two tube boxes 2 through the heat exchange tube reducing devices 11. A steam inlet 13 is formed at the bottom of the sidewall of the casing 1, and a steam outlet 14 is formed at the top of the sidewall of the casing 1.
The heater 12 is installed on the outer wall of the tube box 2 (generally, the side wall of the right tube box 2), so that the large temperature difference between the inside and the outside of the tube box 2 can be effectively prevented, and the tube can be prevented from being bent, broken or pulled off from the tube plate 3. In order to facilitate installation and movement of the heat exchange device, a pair of lifting rings 15 are symmetrically arranged at the top of the shell 1, so that the carrying difficulty of the heat exchange device is reduced. The bottom surface of the shell 1 is provided with a base, and the base is provided with a lockable universal wheel 16, so that the flexibility of the heat exchange device is improved.
The energy-saving corrosion-resistant heat exchange device comprises the following specific working processes:
the high-temperature fluid medium enters the upper cavity of the tube box from the second inlet of the right tube box, then passes through each heat exchange tube from right to left, finally enters the upper cavity of the left tube box to flow out, flows out from the second outlet, and the fluid medium to be heated enters the lower cavity of the tube box from the first inlet of the left tube box, then passes through each fluid tube from left to right, enters the lower cavity of the right tube box, and finally flows out from the first outlet, because the heat exchange tubes are spirally wound on the side wall of the fluid tube bundle, the volume of the heat exchange tubes is far smaller than that of the traditional shell, the flow rate of the high-temperature fluid medium is greatly reduced, so that the heat exchange efficiency is greatly improved, and the heat exchange utilization rate is improved to 70% from the original 40%; in the tube box, the fluid medium to be heated and the high-temperature fluid medium exchange heat through the partition plate, so that the contact time of the heat exchange fluid is prolonged, the contact area is increased, and the heat exchange efficiency is further improved. When no high-temperature liquid medium exists, steam in production can enter the shell from the steam inlet to heat liquid in the fluid tube bundle due to the fact that the corrosivity of the steam is low, heating of various high-temperature media is achieved, and the use is flexible.
Claims (5)
1. An energy-saving corrosion-resistant heat exchange device comprises a shell and tube boxes, wherein the shell is transversely distributed, the tube boxes are positioned at the left end and the right end of the shell, and a tube plate is arranged between each tube box and the end part of the shell;
the heat exchange tube is spirally wound on the outer wall of the fluid tube bundle, and the left end and the right end of the heat exchange tube are respectively communicated with the upper cavities of the two tube boxes;
the side wall of the left channel box is provided with a first inlet communicated with the lower cavity of the left channel box and a second outlet communicated with the upper cavity of the left channel box, and the side wall of the right channel box is provided with a first outlet communicated with the lower cavity of the right channel box and a second inlet communicated with the upper cavity of the right channel box;
the bottom of the side wall of the shell is provided with a steam inlet, and the top of the side wall of the shell is provided with a steam outlet.
2. The energy-saving corrosion-resistant heat exchange device according to claim 1, wherein the surfaces of the tube plates on the left and right sides are provided with a plurality of heat exchange tube diameter-changing devices; the heat exchange tube reducing device is of a tubular structure, one end of the heat exchange tube reducing device is communicated with the upper cavity of the tube box, and the other end of the heat exchange tube reducing device is communicated with the end part of the heat exchange tube through a plurality of branch tubes.
3. The energy-saving corrosion-resistant heat exchange device according to claim 1, wherein an activated carbon net is vertically arranged on the partition plate, and the activated carbon net divides the inner cavity of the tube box into left and right parts.
4. The energy-saving corrosion-resistant heat exchange device according to claim 1, wherein the outer walls of the tube boxes at the left and right ends are provided with heaters.
5. The energy-saving corrosion-resistant heat exchange device according to any one of claims 2 to 4, wherein the bottom surface of the shell is provided with a base, the base is provided with a lockable universal wheel, and the top of the shell is provided with a lockable universal wheel
A pair of lifting rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223234365.XU CN218673259U (en) | 2022-12-05 | 2022-12-05 | Energy-saving corrosion-resistant heat exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223234365.XU CN218673259U (en) | 2022-12-05 | 2022-12-05 | Energy-saving corrosion-resistant heat exchange device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218673259U true CN218673259U (en) | 2023-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223234365.XU Active CN218673259U (en) | 2022-12-05 | 2022-12-05 | Energy-saving corrosion-resistant heat exchange device |
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| Country | Link |
|---|---|
| CN (1) | CN218673259U (en) |
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2022
- 2022-12-05 CN CN202223234365.XU patent/CN218673259U/en active Active
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