CN216205551U - Spiral baffle heat exchanger tube bundle - Google Patents
Spiral baffle heat exchanger tube bundle Download PDFInfo
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- CN216205551U CN216205551U CN202122658245.1U CN202122658245U CN216205551U CN 216205551 U CN216205551 U CN 216205551U CN 202122658245 U CN202122658245 U CN 202122658245U CN 216205551 U CN216205551 U CN 216205551U
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Abstract
The utility model discloses a heat exchanger tube bundle with spiral baffle plates, which comprises a fixed tube plate and the spiral baffle plates, wherein heat exchange tubes are arranged inside the fixed tube plate, the spiral baffle plates are arranged outside the heat exchange tubes, pull rods are arranged at the edges of the fixed tube plate, a distance tube assembly is used for determining the distance between the spiral baffle plates, the distance tube assembly comprises a distance sleeve, an adjusting end head, a bearing and an adaptive end head, the surfaces of the two ends of the distance sleeve are in threaded connection with the adjusting end head, and the side surfaces of the bearing are connected with the adaptive end head. This spiral baffling board heat exchanger tube bank, spiral baffling board are fan-shaped plane and are convenient for process to reduce cost, and realize supporting comprehensively the spiral baffling board through pull rod and heat exchange tube, support in spiral baffling board surface and consolidate the spiral baffling board through the tip that adapts to the end simultaneously, are favorable to improving the life-span, and the interval of adjusting between the end can be adjusted so that adapt to the interval between the spiral baffling board moreover.
Description
Technical Field
The utility model relates to the technical field of heat exchangers, in particular to a spiral baffle plate heat exchanger tube bundle.
Background
The shell-and-tube heat exchanger plays an important role in the fields of petroleum, chemical engineering, oil refining, nuclear energy utilization and the like, and shell-side flow and heat exchange are bottlenecks of the heat exchanger due to the fact that the flow direction of shell-side fluid changes frequently and phenomena such as leakage flow exist. The bow-shaped baffle plate heat exchanger is the most commonly used traditional shell-and-tube heat exchanger, but has the disadvantages that: the on-way pressure drop is large; flow dead zones, bypass flows and leakage flows are easy to occur, and fouling is easy to occur; the higher mass flow rate is easy to induce the vibration of the heat exchange tube, and the service life is shortened. In view of these drawbacks, the concept of a spiral baffle heat exchanger has been proposed, which is based on the idea that: the shell side fluid is made to flow in a continuous spiral shape by changing the arrangement of the shell side baffles. Thus, the ideal baffle arrangement should be a continuous helical curve.
The existing spiral baffle plate heat exchanger tube bundle also has certain defects, and the spiral baffle plate is a continuous spiral curved surface, so that the spiral baffle plate and the distance tube are difficult to process compared with the arched baffle plate heat exchanger tube bundle and need a special processing mould, therefore, the price of the spiral baffle plate heat exchanger tube bundle is slightly higher than that of the arched baffle plate heat exchanger tube bundle.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a spiral baffle plate heat exchanger tube bundle, which aims to solve the problem that the existing spiral baffle plate heat exchanger tube bundle in the background technology has certain defects, and the spiral baffle plate is a continuous spiral curved surface, so that the spiral baffle plate and the distance tube are difficult to process compared with the arched baffle plate heat exchanger tube bundle and need a special processing mould, and therefore, the price of the spiral baffle plate heat exchanger tube bundle is slightly higher than that of the arched baffle plate heat exchanger tube bundle.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a spiral baffling board heat exchanger tube bank, includes fixed tube sheet and spiral baffling board, the inside of fixed tube sheet is provided with the heat exchange tube, the spiral baffling board sets up in the outside of heat exchange tube, the edge of fixed tube sheet is provided with the pull rod, and the pull rod outside has cup jointed the distance pipe subassembly, the distance pipe subassembly is used for confirming interval between the spiral baffling board, the distance pipe subassembly includes distance sleeve pipe, regulation end, bearing and adaptation end, distance sleeve pipe's both ends surface threaded connection has the regulation end, and the tip of adjusting the end is provided with the bearing, the side of bearing is connected with the adaptation end.
Preferably, the heat exchange tube penetrates through the interior of the spiral baffle plate, and the spiral baffle plate occupies a quarter of the cross section of the fixed tube plate and is a fan-shaped plane.
Preferably, two adjacent spiral baffle plates are connected end to end, and the spiral baffle plates are distributed on the surface of the heat exchange tube in a staggered manner.
Preferably, the distance sleeve and the pull rod are assembled in a sliding mode, and the pull rod penetrates through the spiral baffle plate.
Preferably, one end of the pull rod is fixedly connected with the fixed tube plate through a nut, and the other end of the pull rod is fixedly connected with the last spiral baffle plate through a nut.
Preferably, the distance sleeve is positioned between the spiral baffles, and the end part of the adaptive end head is matched with the surface of the spiral baffle.
Preferably, the connection mode between the heat exchange tube and the fixed tube plate is strength welding and sticking expansion, and the end part of the heat exchange tube is complete and has no burn.
The utility model provides a spiral baffle plate heat exchanger tube bundle, which has the following beneficial effects:
the spiral baffling board is fan-shaped plane and is convenient for process to reduce cost, and realize comprehensively supporting the spiral baffling board through pull rod and heat exchange tube, support in spiral baffling board surface and consolidate the spiral baffling board through the tip that adapts to the end simultaneously, be favorable to improving the life-span, adjust the interval between the end moreover and can adjust so that adapt to the interval between the spiral baffling board.
1. According to the utility model, the spiral baffle plates occupy one fourth of the cross section of the fixed tube plate and are in fan-shaped planes, two adjacent spiral baffle plates are connected end to form a complete spiral baffle plate, the spiral baffle plates are in fan-shaped planes and are convenient to process, and the spiral baffle plates are in end to end rotary connection to facilitate angle adjustment to form a spiral shape, so that shell side fluid can continuously and spirally flow to form a spiral channel, the turbulent flow state of the fluid is favorably enhanced, the shell side fluid resistance is small, the shell side fluid has no flowing dead zone due to the spiral channel, and the heat exchange efficiency is high.
2. According to the utility model, the spiral baffle plate is sleeved on the surfaces of the pull rod and the heat exchange tube, the spiral baffle plate is comprehensively supported through the pull rod and the heat exchange tube, and the adaptive end head is matched to abut against the spiral baffle plate, so that the spiral baffle plate is reinforced, the spiral baffle plate is prevented from vibrating under the action of a shell-side fluid, and the service life is prolonged.
3. According to the spiral baffle plate fixing device, the adjusting end head is in threaded connection with the distance sleeve, the adjusting end head can be stretched towards two sides along the surface of the distance sleeve by rotating the adjusting end head, so that the distance between the adjusting end heads is adjusted to adapt to the distance between the spiral baffle plates, the angle of the end part of the adjusting end head is changed by further rotating the adjusting end head, and the end part of the adjusting end head can tightly abut against the surface of the spiral baffle plate to reinforce the spiral baffle plate.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
figure 2 is a schematic view of the construction of the distance sleeve according to the utility model;
FIG. 3 is a schematic side view of the spiral baffle of the present invention;
in the figure: 1. fixing the tube plate; 2. a heat exchange pipe; 3. a helical baffle plate; 4. a pull rod; 5. a spacer tube assembly; 501. distance sleeve; 502. adjusting the end head; 503. a bearing; 504. fitting the end.
Detailed Description
As shown in fig. 1-3, a heat exchanger tube bundle with spiral baffles comprises a fixed tube plate 1 and spiral baffles 3, a heat exchange tube 2 is arranged inside the fixed tube plate 1, the spiral baffles 3 are arranged outside the heat exchange tube 2, a pull rod 4 is arranged at the edge of the fixed tube plate 1, a distance tube assembly 5 is sleeved outside the pull rod 4, the distance tube assembly 5 is used for determining the distance between the spiral baffles 3, the heat exchange tube 2 penetrates through the inside of the spiral baffles 3, the spiral baffles 3 occupy a quarter area of the cross section of the fixed tube plate 1 and are fan-shaped planes, two adjacent spiral baffles 3 are connected end to end, the spiral baffles 3 are distributed in a staggered manner on the surface of the heat exchange tube 2, one end of the pull rod 4 is fixedly connected with the fixed tube plate 1 through a nut, and the other end of the pull rod 4 is fixedly connected with the last spiral baffle 3 through a nut, the connection mode between the heat exchange tube 2 and the fixed tube plate 1 is strength welding and sticking expansion, and the end part of the heat exchange tube 2 is complete and has no burn;
firstly, the pull rod 4 and the heat exchange tube 2 are distributed in parallel and are arranged inside the fixed tube plate 1, the spiral baffle plates 3 are sleeved on the surfaces of the heat exchange tube 2 and the pull rod 4, the spiral baffle plates 3 are comprehensively supported through the pull rod 4 and the heat exchange tube 2, the spiral baffle plates 3 occupy a quarter of the cross section of the fixed tube plate 1 and are fan-shaped planes, and the two adjacent spiral baffle plates 3 are connected end to end, so that the fan-shaped planes are spliced to form a spiral channel, the turbulent flow state of fluid is favorably enhanced, the shell pass fluid resistance is small, the shell side fluid has no flowing dead zone due to the spiral channel, and the heat exchange efficiency is high;
as shown in fig. 1-3, the distance tube assembly 5 comprises a distance sleeve 501, an adjusting end 502, a bearing 503 and an adapting end 504, the adjusting end 502 is connected to the two end surfaces of the distance sleeve 501 in a threaded manner, the bearing 503 is arranged at the end of the adjusting end 502, the adapting end 504 is connected to the side surface of the bearing 503, the distance sleeve 501 and the pull rod 4 are in sliding assembly, the pull rod 4 penetrates through the spiral baffle plate 3, the distance sleeve 501 is located between the spiral baffle plates 3, and the end of the adapting end 504 is adapted to the surface of the spiral baffle plate 3;
the specific operation is as follows, be provided with distance sleeve 501 between the spiral baffling board 3, through rotating the regulation end 502 at distance sleeve 501 both ends, make regulation end 502 stretch out to both sides along distance sleeve 501 surface, make adaptation end 504 paste in spiral baffling board 3 surface, thereby consolidate spiral baffling board 3, and adaptation end 504 rotates with regulation end 502 through bearing 503 to be connected, can make its tip angle change through rotating adaptation end 504, make the tip that adapts to end 504 can with spiral baffling board 3 surface looks adaptation, so that reinforcing degree and stability, avoid spiral baffling board 3 to appear vibrating under the effect of shell side fluid, thereby be favorable to improving the life-span.
In summary, when the spiral baffle plate heat exchanger tube bundle is used, firstly the pull rods 4 and the heat exchange tubes 2 are distributed in parallel and are all arranged in the fixed tube plate 1, and the spiral baffle plates 3 are sleeved on the surfaces of the heat exchange tubes 2 and the pull rods 4;
the spiral baffle plates 3 are comprehensively supported through the pull rods 4 and the heat exchange tubes 2, the spiral baffle plates 3 occupy a quarter of the cross section of the fixed tube plate 1 and are fan-shaped planes, and the two adjacent spiral baffle plates 3 are connected end to end, so that the fan-shaped planes are spliced to form a spiral shape, a spiral channel is formed, the turbulent flow state of fluid is favorably enhanced, the shell-side fluid resistance is small, the spiral channel enables shell-side fluid to have no flowing dead zone, and the heat exchange efficiency is high;
last be provided with distance sleeve 501 between spiral baffling board 3, regulation end 502 through rotating distance sleeve 501 both ends, make regulation end 502 stretch out to both sides along distance sleeve 501 surface, make adaptation end 504 paste in spiral baffling board 3 surface, thereby consolidate spiral baffling board 3, and adaptation end 504 passes through bearing 503 and is connected with regulation end 502 rotation, it can make its tip angle change to adapt to end 504 through rotating, make the tip that adapts to end 504 can with spiral baffling board 3 surface looks adaptation, so that reinforcing degree and stability, avoid spiral baffling board 3 vibration appears under shell side fluid effect, thereby be favorable to improving the life-span.
Claims (7)
1. A spiral baffle heat exchanger tube bundle, comprising a fixed tube plate (1) and a spiral baffle (3), characterized in that: the heat exchange tube (2) is arranged inside the fixed tube plate (1), the spiral baffle plate (3) is arranged outside the heat exchange tube (2), a pull rod (4) is arranged at the edge of the fixed tube plate (1), a distance tube assembly (5) is sleeved outside the pull rod (4), the distance tube assembly (5) is used for determining the distance between the spiral baffle plates (3), the distance tube assembly (5) comprises a distance sleeve (501), an adjusting end (502), a bearing (503) and an adapting end (504), the adjusting end (502) is connected to the surfaces of the two ends of the distance sleeve (501) in a threaded mode, the bearing (503) is arranged at the end of the adjusting end (502), and the adapting end (504) is connected to the side face of the bearing (503).
2. A spiral baffled heat exchanger tube bundle according to claim 1, wherein the heat exchange tubes (2) extend through the interior of the spiral baffles (3) and the spiral baffles (3) occupy a quarter of the cross-sectional area of the fixed tube sheet (1) and are in the form of sector planes.
3. A spiral baffled heat exchanger tube bundle according to claim 1, wherein adjacent two of the spiral baffles (3) are connected end to end, and the spiral baffles (3) are arranged in a staggered arrangement on the surface of the heat exchange tube (2).
4. A tube bundle with helical baffles as claimed in claim 1, characterised in that said distance sleeves (501) are slidably fitted with tie rods (4) and the tie rods (4) penetrate the interior of the helical baffles (3).
5. A spiral baffle heat exchanger tube bundle according to claim 1, characterized in that one end of the tie rod (4) is fixedly connected with the fixed tube plate (1) by a nut, and the other end of the tie rod (4) is fixedly connected with the last spiral baffle (3) by a nut.
6. A spiral baffle heat exchanger tube bundle according to claim 1, characterized in that the distance sleeves (501) are located between the spiral baffles (3) and the ends of the compliant end heads (504) are adapted to the surface of the spiral baffles (3).
7. A tube bundle for a heat exchanger with helical baffles according to claim 1, wherein the connection between the heat exchange tubes (2) and the fixed tube sheet (1) is strength welding plus stick expansion, and the ends of the heat exchange tubes (2) are intact and free of burns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122658245.1U CN216205551U (en) | 2021-11-02 | 2021-11-02 | Spiral baffle heat exchanger tube bundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122658245.1U CN216205551U (en) | 2021-11-02 | 2021-11-02 | Spiral baffle heat exchanger tube bundle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216205551U true CN216205551U (en) | 2022-04-05 |
Family
ID=80899072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122658245.1U Active CN216205551U (en) | 2021-11-02 | 2021-11-02 | Spiral baffle heat exchanger tube bundle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216205551U (en) |
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2021
- 2021-11-02 CN CN202122658245.1U patent/CN216205551U/en active Active
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