CN219244347U - Novel shell-and-tube heat exchanger - Google Patents
Novel shell-and-tube heat exchanger Download PDFInfo
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- CN219244347U CN219244347U CN202320271503.7U CN202320271503U CN219244347U CN 219244347 U CN219244347 U CN 219244347U CN 202320271503 U CN202320271503 U CN 202320271503U CN 219244347 U CN219244347 U CN 219244347U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model belongs to the technical field of heat exchange equipment, and particularly relates to a novel shell-and-tube heat exchanger. The utility model comprises a shell, wherein the shell consists of an outer cylinder body and an inner cylinder body sleeved in the outer cylinder body, and a plurality of heat exchange tubes are arranged between the outer cylinder body and the inner cylinder body; the outer cylinder body is respectively communicated with a shell side inlet and a shell side outlet, a tube side sealing cover is arranged at one end of the outer cylinder body, which is close to the shell side outlet, and a tube side inflow box and a tube side outflow box are arranged at one end of the outer cylinder body, which is close to the shell side inlet. The shell is cylindrical, so that the heat transfer area is increased, the turbulence degree of shell-side fluid can be increased, and the arranged large circular ring and small circular ring-shaped baffle plates play roles in resisting flow and fixing the heat exchange tube; after flowing out of the heat exchange tube, the tube side fluid is converged into the cavity of the shell through the tube Cheng Fenggai and performs secondary heat transfer with the shell side fluid, so that the heat utilization rate of the tube side fluid is improved.
Description
Technical Field
The utility model belongs to the technical field of heat exchange equipment, and particularly relates to a novel shell-and-tube heat exchanger.
Background
The shell-and-tube heat exchanger is a traditional heat exchanger, has the advantages of reliable structure, mature technology, relatively simple design and manufacture, low production cost, high-temperature and high-pressure bearing, wide material selection range, strong adaptability, convenient treatment and cleaning and the like, and is widely applied to the engineering fields of energy, power, nuclear energy, petroleum, metallurgy, refrigeration, chemical industry and the like.
The working schematic diagram of the conventional shell-and-tube heat exchanger with the arched baffle is shown in fig. 1, wherein shell side fluid and tube side fluid are subjected to convection and heat exchange through a heat exchange tube, the tube side fluid directly flows out after passing through the heat exchange tube, the contact heat transfer time of the tube side fluid and the shell side fluid is shorter, the heat of the tube side fluid is wasted, the heat exchange efficiency is lower, and the phenomenon of insufficient utilization of the heat of the tube side fluid occurs, so that a novel shell-and-tube heat exchanger is needed.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a novel shell-and-tube heat exchanger. The utility model can improve the heat exchange efficiency of the shell-and-tube heat exchanger and increase the heat utilization rate of tube side fluid.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the novel shell-and-tube heat exchanger comprises a shell, wherein the shell consists of an outer cylinder body and an inner cylinder body sleeved in the outer cylinder body, and a plurality of heat exchange tubes are arranged between the outer cylinder body and the inner cylinder body; the outer cylinder body is respectively communicated with a shell side inlet and a shell side outlet, a tube side sealing cover is arranged at one end of the outer cylinder body, which is close to the shell side outlet, and a tube side inflow box and a tube side outflow box are arranged at one end of the outer cylinder body, which is close to the shell side inlet; the liquid inlet end of the inner cylinder body is communicated with the tube side sealing cover, and the liquid outlet end of the inner cylinder body is communicated with the tube side outflow box; the liquid inlet end of the heat exchange tube is communicated with the tube side flow inlet box, and the liquid outlet end of the heat exchange tube is communicated with the tube side sealing cover.
Preferably, the tube side inflow box is annular, the tube side inflow box is provided with a tube side inflow opening, the tube side outflow box is closed, and the tube side outflow box is provided with a tube side outflow opening.
Preferably, the plurality of heat exchange tubes are arranged along the radial direction of the outer cylinder body, a large annular baffle plate and a small annular baffle plate are also arranged in the outer cylinder body, and the heat exchange tubes positioned on the same inner diameter of the outer cylinder body penetrate through the large annular baffle plate or the small annular baffle plate.
Preferably, the large annular baffle plate and the small annular baffle plate are both provided with a plurality of large annular baffle plates and small annular baffle plates, and the large annular baffle plates and the small annular baffle plates are arranged at intervals along the length direction of the heat exchange tube.
Preferably, the end of the tube side sealing cover provided with the opening is fixedly connected with the second tube plate on the outer cylinder body through the first flange.
Preferably, one side of the tube side inflow box is in sealing connection with the first tube plate on the outer cylinder body through the second flange, and the other side of the tube side inflow box is in sealing connection with the fourth flange on the tube side outflow box through the third flange.
Preferably, the liquid outlet end of the inner cylinder body sequentially penetrates through the first tube plate and the tube side inflow box to be communicated with the tube side outflow box.
Preferably, the saddle is arranged at both ends of the bottom of the outer cylinder.
The utility model has the advantages that:
(1) According to the heat exchanger, the tube side fluid flows out of the heat exchange tube and then is gathered into the tube side sealing cover and then flows into the inner cylinder body, so that the heat exchange path is prolonged, secondary heat transfer is carried out with the shell side fluid, and the heat utilization rate of the tube side fluid is improved; the shell of the heat exchanger is cylindrical, so that the heat transfer area is increased, the turbulence degree of shell-side fluid can be increased, and the arranged large circular ring and small circular ring-shaped baffle plates play roles in resisting flow and fixing the heat exchange tube.
(2) Compared with the cylindrical shell of the common shell-and-tube heat exchanger, the shell of the shell-and-tube heat exchanger has the advantages that the flow area of shell-side fluid is reduced, so that the flow speed of the shell-side fluid is increased, the turbulence degree of the shell-side fluid is enhanced, the heat exchange area is increased, and the heat exchange enhancing effect is achieved; the large circular ring baffle plates and the small circular ring baffle plates which are arranged in a staggered way play roles in turbulent flow and fixing of the heat exchange tube, so that the heat exchange performance can be improved, and the heat exchange tube can be supported; after flowing out of the heat exchange tube, the tube side fluid is converged into the cavity of the shell through the tube Cheng Fenggai, and secondary heat transfer is carried out between the inner cylinder and the shell side fluid, so that the heat utilization rate of the tube side fluid is improved.
Drawings
FIG. 1 is a schematic diagram of the operation of a prior art arcuate baffle heat exchanger.
Fig. 2 is a schematic diagram of the operation of a novel shell-and-tube heat exchanger according to the present utility model.
Fig. 3 is an overall structural view of a novel shell-and-tube heat exchanger according to the present utility model.
Fig. 4 is a block diagram of a shell of a novel shell-and-tube heat exchanger according to the present utility model.
Fig. 5 is a perspective view of a shell of a novel shell-and-tube heat exchanger of the present utility model.
Fig. 6 is a structural diagram of a tube side cover of a novel shell-and-tube heat exchanger according to the present utility model.
Fig. 7 is a structural diagram of a tube side inflow box of a novel shell-and-tube heat exchanger of the present utility model.
Fig. 8 is a structural diagram of a tube side outlet box of a novel shell-and-tube heat exchanger according to the present utility model.
Fig. 9 is a block diagram of a large annular baffle of a novel shell-and-tube heat exchanger of the present utility model.
FIG. 10 is a block diagram of a small annular baffle of a novel shell-and-tube heat exchanger according to the present utility model
The meaning of the reference symbols in the figures is as follows:
1-shell, 11-shell side inlet, 12-shell side outlet, 13-outer cylinder, 14-inner cylinder, 15-heat exchange tube, 16-first tube plate, 17-second tube plate, 18-large annular baffle, 19-small annular baffle, 2-tube side cover, 21-first flange, 3-tube side inlet and outlet, 31-tube side inlet and outlet, 32-second flange, 33-third flange, 4-tube side outlet and outlet, 41-tube side outlet, 42-fourth flange and 5-saddle.
Detailed Description
As shown in fig. 1-10, a novel shell-and-tube heat exchanger comprises a shell 1, a tube side sealing cover 2, a tube side inflow box 3, a tube side outflow box 4 and a saddle 5, wherein the shell 1 is cylindrical and is divided into an outer shell 13 and an inner shell 14; a heat exchange tube 15 is fixedly arranged in the shell 1; a large ring 18 and a small ring baffle 19 are arranged in the housing. Compared with a common cylindrical shell, the cylindrical shell 1 can accelerate the flow velocity of shell side fluid, improve the turbulence degree of the shell and enhance the heat exchange effect; the large circular ring 18 and the small circular ring baffle plate 19 play roles in turbulent flow and fixing the heat exchange tube 15; the arrangement of the inner shell 14 ensures that the tube side fluid flows out of the heat exchange tube and then generates secondary heat transfer with the shell side fluid through the tube Cheng Feng cover 2, thereby improving the heat utilization rate of the tube side fluid.
Specifically, the heat exchange tubes 15 and the inner shell 14 are fixed on a first tube plate 16 and a second tube plate 17 at two ends of the shell, and the heat exchange tubes 15 are circularly arranged in the shell 1. The tube side inflow box 3 is annular, the tube side inflow box 3 is provided with a tube side inflow opening 31, the tube side outflow box 4 is closed, and the tube side outflow box 4 is provided with a tube side outflow opening 41.
Further, the plurality of heat exchange tubes 15 are arranged along the radial direction of the outer cylinder 13, a large annular baffle 18 and a small annular baffle 19 are also arranged in the outer cylinder 13, and the heat exchange tubes 15 positioned on the same inner diameter of the outer cylinder 13 penetrate through the large annular baffle 18 or the small annular baffle 19. The large annular baffle plate 18 and the small annular baffle plate 19 are both provided with a plurality of large annular baffle plates 18 and small annular baffle plates 19, and the large annular baffle plates 18 and the small annular baffle plates 19 are arranged at intervals along the length direction of the heat exchange tube 15. More specifically, round holes for the heat exchange tubes 15 to pass through are formed in the large circular ring 18 and the small circular ring baffle plate 19; the large circular rings 18 and the small circular ring baffles 19 are uniformly staggered in the shell 1. The large annular baffle plate 18 is used for fixing the outer ring heat exchange tubes, the small annular baffle plate 19 is used for fixing the inner ring heat exchange tubes, and the two baffle plates play a role in fixing all the heat exchange tubes and play a role in disturbing shell-side fluid.
Further, the end of the tube side cover 2 provided with the opening is fixedly connected with the second tube plate 17 on the outer cylinder 13 through the first flange 21. One side of the tube side inflow box 3 is in sealing connection with the first tube plate 16 on the outer cylinder 13 through the second flange 32, and the other side of the tube side inflow box 3 is in sealing connection with the fourth flange 42 on the tube side outflow box 4 through the third flange 33. The liquid outlet end of the inner cylinder 14 sequentially penetrates through the first tube plate 16 and the tube side inlet flow box 3 to be communicated with the tube side outlet flow box 4.
In order to facilitate the stabilization of the heat exchanger, saddles 5 are arranged at both ends of the bottom of the outer cylinder 13 of the heat exchanger.
The operation of the device will be described in detail with reference to the drawings in the embodiments.
When in operation, shell side fluid flows in from the shell side inflow port 11, flows in the shell 1, encounters the blocking of the large circular rings 18 and the small circular ring baffle plates 19 which are arranged in a staggered way, and finally flows out from the shell side outflow port 12; the tube side fluid flows in from the tube side inlet 31, flows through the tube side inlet box 3 to the heat exchange tube 15, exchanges heat with the shell side fluid through the wall of the heat exchange tube, flows out and gathers in the tube side sealing cover 2 through the heat exchange tube 15, flows into the cavity of the shell, exchanges heat with the shell side fluid for the second time through the inner cylinder 14, and finally flows out through the tube side outlet 41 of the Cheng Chuliu box 4.
The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the present utility model, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (8)
1. The novel shell-and-tube heat exchanger is characterized by comprising a shell (1), wherein the shell (1) consists of an outer cylinder (13) and an inner cylinder (14) sleeved in the outer cylinder (13), and a plurality of heat exchange tubes (15) are further arranged between the outer cylinder (13) and the inner cylinder (14); the outer cylinder body (13) is respectively communicated with a shell side inlet (11) and a shell side outlet (12), a tube side sealing cover (2) is arranged at one end, close to the shell side outlet (12), of the outer cylinder body (13), and a tube side inlet box (3) and a tube side outlet box (4) are arranged at one end, close to the shell side inlet (11), of the outer cylinder body (13); the liquid inlet end of the inner cylinder (14) is communicated with the tube side sealing cover (2), and the liquid outlet end of the inner cylinder (14) is communicated with the tube side outflow box (4); the liquid inlet end of the heat exchange tube (15) is communicated with the tube side inflow box (3), and the liquid outlet end of the heat exchange tube (15) is communicated with the tube side sealing cover (2).
2. A novel shell and tube heat exchanger according to claim 1, wherein: the tube side inflow box (3) is annular, a tube side inflow opening (31) is formed in the tube side inflow box (3), the tube side outflow box (4) is closed, and a tube side outflow opening (41) is formed in the tube side outflow box (4).
3. A novel shell and tube heat exchanger according to claim 1, wherein: the heat exchange tubes (15) are arranged along the radial direction of the outer cylinder body (13), a large annular baffle plate (18) and a small annular baffle plate (19) are further arranged in the outer cylinder body (13), and the heat exchange tubes (15) positioned on the same inner diameter of the outer cylinder body (13) penetrate through the large annular baffle plate (18) or the small annular baffle plate (19).
4. A novel shell and tube heat exchanger according to claim 3, wherein: the large annular baffle plates (18) and the small annular baffle plates (19) are provided with a plurality of large annular baffle plates (18) and small annular baffle plates (19) which are arranged at intervals along the length direction of the heat exchange tube (15).
5. A novel shell and tube heat exchanger according to claim 1, wherein: one end of the tube side sealing cover (2) provided with an opening is fixedly connected with a second tube plate (17) on the outer cylinder body (13) through a first flange (21).
6. A novel shell and tube heat exchanger according to claim 1, wherein: one side of the tube side inflow box (3) is in sealing connection with a first tube plate (16) on the outer cylinder body (13) through a second flange (32), and the other side of the tube side inflow box (3) is in sealing connection with a fourth flange (42) on the tube side outflow box (4) through a third flange (33).
7. A novel shell and tube heat exchanger according to claim 3, wherein: the liquid outlet end of the inner cylinder body (14) sequentially penetrates through the first tube plate (16) and the tube side inflow box (3) to be communicated with the tube side outflow box (4).
8. A novel shell and tube heat exchanger according to claim 1, wherein: saddle (5) are installed at both ends of the bottom of the outer cylinder body (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320271503.7U CN219244347U (en) | 2023-02-21 | 2023-02-21 | Novel shell-and-tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320271503.7U CN219244347U (en) | 2023-02-21 | 2023-02-21 | Novel shell-and-tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219244347U true CN219244347U (en) | 2023-06-23 |
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ID=86808092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320271503.7U Active CN219244347U (en) | 2023-02-21 | 2023-02-21 | Novel shell-and-tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219244347U (en) |
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2023
- 2023-02-21 CN CN202320271503.7U patent/CN219244347U/en active Active
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