CN211926599U - Shunting spiral baffling rod heat exchanger - Google Patents
Shunting spiral baffling rod heat exchanger Download PDFInfo
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- CN211926599U CN211926599U CN202020530845.2U CN202020530845U CN211926599U CN 211926599 U CN211926599 U CN 211926599U CN 202020530845 U CN202020530845 U CN 202020530845U CN 211926599 U CN211926599 U CN 211926599U
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- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 13
- 230000007547 defect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011295 pitch Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to a reposition of redundant personnel spiral baffling rod heat exchanger belongs to indirect heating equipment technical field. Including middle heat transfer section, middle heat transfer section both ends are equipped with pipe case, and middle heat transfer section includes the casing, and the casing both ends are equipped with the tube sheet, and pipe sheet connecting tube case runs through the tube sheet and is equipped with the heat exchange tube, and heat exchange tube both ends intercommunication pipe case, heat exchange tube are concentric lamellar array along the tube sheet and arrange, have arranged spiral baffling pole between the adjacent layer heat exchange tube, form spiral baffling space in the casing. The utility model provides the high coefficient of heat transfer of shell side reduces the pressure drop loss, avoids the heat transfer blind area, and easily manufacturing has reduced manufacturing cost.
Description
Technical Field
The utility model relates to a reposition of redundant personnel spiral baffling rod heat exchanger belongs to indirect heating equipment technical field.
Background
The heat exchanger in the form of the arch baffle plate is widely applied to the heat exchanger at present, and has many defects, a plurality of segmental plates enable fluid to flow in a Z shape after being distributed on a shell side, the movement direction and the speed of the fluid are changed, so that the phenomena of flow resistance, large pressure drop and the like are caused, and the defects of dead flow area, easy scaling, small average temperature difference of heat transfer and the like are also caused. In recent years, heat exchangers in the form of fluid spiral baffles have been used with good results and have occupied a very important position.
The ideal spiral baffle plate should have continuous spiral curved surface, but the processing is very difficult, difficult to be widely used, the adopted general noncontinuous spiral baffle plate at present, a plurality of 1/4 fan-shaped plane plates are connected alternatively to form approximate spiral surface instead of curved surface, but still has a plurality of defects. For example, the joints of the fan-shaped plates form unsmooth acute-angle transitions, back pressure exists on axially moving fluid, energy loss is caused by sudden turning of the fluid when the fluid passes through, and energy consumption is more serious when the helix angle is larger; the spiral curved surface has a serious triangular leakage area, so that the flow of the shell pass fluid deviates from the spiral flow, and the shell pass heat transfer performance is reduced. In contrast, the structural form of the continuous spiral curved surface can generate better heat exchange effect on the heat exchanger.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the shunting spiral baffling rod heat exchanger is provided, the heat transfer coefficient of a shell pass is improved, the pressure drop loss is reduced, the heat exchange blind area is avoided, the processing and the manufacturing are easy, and the manufacturing cost is reduced.
Shunting spiral baffling rod heat exchanger, including middle heat exchanger section, middle heat exchanger section both ends are equipped with a tub case, and middle heat exchanger section includes the casing, and the casing both ends are equipped with the tube sheet, and tube sheet connecting tube case runs through the tube sheet and is equipped with the heat exchange tube, and heat exchange tube both ends intercommunication pipe case, heat exchange tube are concentric lamellar array along the tube sheet and arrange, have arranged spiral baffling rod between the adjacent layer heat exchange tube, form spiral baffling space in the casing.
Working process or working principle:
the shell is provided with a shell pass inlet and a shell pass outlet, the continuous spiral baffling rod and the heat exchange tube form a multilayer continuous spiral rotary space in the shell pass of the heat exchanger, so that a shell pass medium flows through the spiral space between the spiral baffling rod and the heat exchange tube in a multilayer continuous turbulent flow mode, the heat transfer coefficient of the shell pass is improved, the pressure drop loss is reduced, and the heat exchange blind area is avoided. The spiral baffling rod is formed by spirally winding around the heat exchange tube, the manufacturing process is very simple, the processing and the manufacturing are easy, the material is saved, and the manufacturing cost is reduced.
Preferably, the heat exchange tube is a heat exchange tube A, the heat exchange tube A is a reducing light tube, and the diameters of two ends of the reducing light tube are smaller than the diameter of the middle part of the reducing light tube. After a certain number of heat exchange tubes A are arranged on the tube plate, the diameter of the heat exchange tube A in the middle of the shell needs to be increased to eliminate the gap between the adjacent heat exchange tubes A, so that the adjacent two layers of annular heat exchange tubes A and the spiral baffling rod clamped in the middle form a closed spiral baffling space as much as possible; gaps need to be reserved between the heat exchange tubes A at the positions of the shell pass inlet and the shell pass outlet to ensure the flow area, so that the shell pass fluid is subjected to annular flow distribution, passes through the spiral baffling space of each layer, and is converged and flows out at the shell pass outlet.
Further preferably, a heat exchange tube B is arranged in the center of the penetrating tube plate, and a spiral baffling sheet is additionally arranged on the heat exchange tube B on the basis of the heat exchange tube A and surrounds the heat exchange tube A, and is arranged in the middle of the heat exchange tube A. The distance between the heat exchange tube B and the adjacent annular heat exchange tube A is not easy to control, the spiral baffle plate replaces a spiral baffle rod, the size is easy to control and process, and the heat exchange tube B and the adjacent annular heat exchange tube A form a closed spiral baffle space.
Further preferably, the spiral baffling sheet is a continuous spiral baffling sheet.
Further preferably, the spiral baffling sheets and the spiral baffling rods are arranged in the same pitch, and the spiral baffling sheets and the spiral baffling rods jointly form a sealed spiral baffling space.
Further preferably, the cross-sectional diameters of the spiral baffle rods are the same; the spiral baffling rods of each layer are arranged concentrically and spirally.
Preferably, each layer of heat exchange tube is provided with a pull rod, the pull rod is fixedly connected with the spiral baffle rod, the pull rod is a reducing pull rod, and the diameters of two ends of the reducing pull rod are smaller than the diameter of the middle part of the reducing pull rod.
Further preferably, the tie rods are evenly arranged around the center of the tube plate.
Further preferably, the end of the spiral baffle rod is connected with the tube plate through a fixing rod.
Further preferably, the bottom of the shell is provided with a movable saddle and a fixed saddle.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a multilayer concentric spiral baffling rod structure shunts shell side fluid, and effectively utilize the structure of continuous spiral baffling rod and heat exchange tube, form the continuous heliciform gyration space of multilayer in the heat exchanger shell side, make shell side fluid with the form of the continuous torrent of multilayer, flow the spiral space between spiral baffling rod and the heat exchange tube, the coefficient of heat transfer of shell side has been improved, reduce the pressure drop loss, avoid the heat transfer blind area, the continuous spiral baffling rod of above-mentioned heat exchanger structure of the most important thing, manufacturing process is very simple, easy manufacturing, and materials are saved, and the manufacturing cost is reduced.
Drawings
Figure 1 is a schematic structural view of an embodiment of the present invention,
figure 2 is a schematic cross-sectional view of C-C of figure 1,
figure 3 is a schematic cross-sectional view of D-D of figure 1,
FIG. 4 is a schematic view of a heat exchange middle section structure
Figure 5 is a schematic view of the structure of a heat exchange tube a,
figure 6 is a left side view of figure 5,
figure 7 is a schematic structural view of a heat exchange tube B,
figure 8 is a left side view of figure 7,
figure 9 is a schematic view of the structure of the tie rod,
fig. 10 is a left side view of fig. 9.
In the figure: 1. the device comprises a tube side outlet 2, a left tube box 3, a gasket 4, a middle heat exchange section 5, a heat exchange tube A6, a right tube box 7, a tube side inlet 8, a movable saddle 9, a fixed saddle 10, a heat exchange tube B11 and a continuous spiral baffling sheet;
4.1, a left tube plate 4.2, a shell side inlet 4.3, a shell 4.4, a spiral baffle rod 4.5, a pull rod 4.6, a right tube plate 4.7, a shell side outlet 4.8 and a fixed rod.
In fig. 1 and 4:
arrows E and F indicate the tube side media flow direction;
arrows G and H indicate the shell-side medium flow direction.
Detailed Description
The technical solution in the embodiments of the present invention will be further clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention:
example 1
As shown in fig. 1 to 10, the split-flow spiral baffle heat exchanger of the present invention comprises a middle heat exchange section 4, tube boxes are disposed at two ends of the middle heat exchange section 4, the middle heat exchange section 4 comprises a shell 4.3, tube plates are disposed at two ends of the shell 4.3, the tube plates are connected with the tube boxes, and gaskets 3 are disposed between the tube plates and the tube boxes for enhancing sealing; the heat exchange tubes are arranged through the tube plates, the two ends of each heat exchange tube are communicated with the tube boxes, the heat exchange tubes are arranged along the tube plates in a concentric layered array, spiral baffling rods 4.4 are arranged between adjacent heat exchange tubes, and spiral baffling spaces are formed in the shell 4.3. The tube box comprises a left tube box 2 and a right tube box 6, the left end of the middle heat exchange section 4 is connected with the left tube box, the left end of the left tube box is provided with a tube pass outlet 1, the right end of the middle heat exchange section is connected with the right tube box, and the right end of the right tube box is provided with a tube pass inlet 7. The upper part of the left end of the shell is provided with a shell pass inlet 4.2, and the lower part of the right end of the shell is provided with a shell pass outlet 4.7. The tube plates comprise a left tube plate 4.1 and a right tube plate 4.6, and the left tube plate is connected with the left tube box and the left end of the middle heat exchange section; the right tube plate is connected with the right tube box and the right end of the middle heat exchange section. The heat exchange tube is a heat exchange tube A5, the heat exchange tube A5 is a variable diameter light tube, and the diameters of the two ends of the variable diameter light tube are smaller than the diameter of the middle part of the variable diameter light tube. A heat exchange tube B10 is arranged through the center of the tube plate, a spiral baffling sheet 11 is additionally arranged on the heat exchange tube B10 based on the heat exchange tube A5, the spiral baffling sheet 11 is arranged around the heat exchange tube A5, and the spiral baffling sheet 11 is arranged in the middle of the heat exchange tube A5. The spiral baffle 11 is provided in the portion of the heat exchange tube a5 where the diameter is large in the middle.
The spiral baffling sheet 11 is a continuous spiral baffling sheet. The spiral baffling sheets 11 are arranged in the same pitch with the spiral baffling rods. The spiral baffling sheet and the spiral baffling rod jointly form a sealed spiral baffling space.
The cross-sectional diameters of the spiral baffle rods are the same. The layers of helical baffle rods 4.4 are arranged concentrically and helically.
Each layer of heat exchange tube is provided with a pull rod 4.5, the pull rod 4.5 is fixedly connected with a spiral baffling rod 4.4, the pull rod 4.5 is a reducing pull rod, and the diameters of two ends of the reducing pull rod are smaller than the diameter of the middle part of the reducing pull rod. The tie rods 4.5 are evenly arranged around the centre of the tube sheet.
The end part of the spiral baffling rod is connected with the tube plate through a fixed rod.
A plurality of layers of concentric annular array holes are uniformly distributed on the plate surfaces of the left tube plate 4.1 and the right tube plate 4.6, and each layer of annular array hole can be provided with 4 pull rod mounting holes which are arranged at equal intervals; and the centers of the left tube plate 4.1 and the right tube plate 4.6 are provided with mounting holes for the heat exchange tubes B. The rest are mounting holes of the heat exchange tube A; the pull rod penetrates into the pull rod mounting hole and is welded and fixed; the heat exchange tube A is penetrated into the mounting hole of the heat exchange tube A and is welded and fixed; and the heat exchange tube B is penetrated into the mounting hole of the heat exchange tube B and is welded and fixed. The heat exchange tubes A and the pull rods are arranged on each layer in a ring shape.
The spiral baffling rods 4.4 have multiple specifications, the spiral outer diameters are different, the cross section diameters are the same, the thread pitches are the same, all the spiral baffling rods 4.4 are spirally arranged between the adjacent pull rods 4.5 in a penetrating mode, the spiral baffling rods 4.4 are fixedly welded with the adjacent 4 pull rods 4.5, and the left ends of the spiral baffling rods 4.4 are connected with the left tube plate 4.1 through fixing rods 4.8 and used for reinforcing and fixing. Or the right end of the spiral baffle rod can be connected with the right tube plate through a fixed rod 4.8.
The heat exchange tube A5 is a light tube structure, the diameter of both ends is small, the diameter of the middle part is large, the reason is that after a certain number of heat exchange tubes A5 are arranged on the tube plate, the diameter of the heat exchange tube A5 in the middle part of the shell 4.3 needs to be increased to eliminate the gap between the adjacent heat exchange tubes A5, so that the adjacent two layers of annular heat exchange tubes A5 and the spiral deflection rod 4.4 clamped in the middle form a closed spiral deflection space as much as possible, and gaps need to be left between the heat exchange tubes A5 at the positions of the shell side inlet 4.2 and the shell side outlet 4.7 to ensure the flow area, so that the shell side fluid is divided, passes through the spiral deflection space of each layer, and is converged and flows out at the shell side outlet 4.7.
The heat exchange tube B is composed of a heat exchange tube A and continuous spiral baffling sheets 11, the heat exchange tube A is of a light tube structure, the diameters of two ends of the heat exchange tube A are small, the diameter of the middle part of the heat exchange tube A is large, and the outer surface of the middle part of the heat exchange tube A is provided with the continuous spiral baffling sheets 11 at equal intervals. The distance between the heat exchange tube B10 and the adjacent annular heat exchange tube A5 is not easy to control, the continuous spiral baffling sheet 11 replaces a spiral baffling rod 4.4, the size is easy to control and process, and the heat exchange tube B10 and the adjacent annular heat exchange tube A5 form a closed spiral baffling space.
The diameters of the two ends of the pull rod 4.5 are small, the diameter of the middle part of the pull rod is large, and the diameter change reason of the pull rod 4.5 is the same as that of the heat exchange tube A5. In the middle of the pull rod, the pull rod and the spiral baffling rod form a closed spiral baffling space as much as possible; and gaps are reserved on the periphery of the pull rod at the positions of the shell side inlet 4.2 and the shell side outlet 4.7 to ensure the flow area, so that the shell side fluid is divided, the fluid passes through the spiral baffling space of each layer, and is converged and flows out at the position of the shell side outlet 4.7.
The bottom of the shell 4.3 is provided with a movable saddle 8 and a fixed saddle 9. The movable saddle 8 and the fixed saddle 9 are used for supporting and fixing.
Working process or working principle:
when the utility model is used, the tube side medium enters the right tube box 6 through the tube side inlet 7, then enters the heat exchange tube A5 and the heat exchange tube 10, finally flows into the left tube box 2 and flows out of the tube side outlet 1; the shell side medium enters from a shell side inlet 4.2; at the left end of the heat exchange tube, shell-side media are annularly shunted from gaps among the heat exchange tubes, at the middle part of the heat exchange tube, the shell-side media flow through each layer of closed spiral baffling space in the shell 4.3, so that most of the shell-side media flow to the position of a shell-side outlet 4.7 in a spiral flow mode, the position of the shell-side outlet is the right end of the heat exchange tube, the shell-side media enter the gaps among the heat exchange tubes A from the spiral baffling to form annular shunting, the shell-side media flow out from the shell-side outlet 4.7, and the shell-side media and the tube-side.
The heat exchange tubes A5 are light tube structures, the diameters of the two ends are small, the diameter of the middle part is large, gaps need to be left between the heat exchange tubes A5 at the positions of a shell side inlet 4.2 and a shell side outlet 4.7 to ensure the flow area, shell side media are subjected to layered annular flow distribution, and after passing through a spiral flow baffling space of each layer, shell side media flow is layered and annularly converged at the position of the shell side outlet 4.7 and flows out.
The utility model discloses in to the direction of structure and the description of relative position relation, it is right not to constitute like the description from top to bottom all around the utility model discloses a restriction only is the description convenient.
Claims (10)
1. The utility model provides a shunting spiral baffling rod heat exchanger, a serial communication port, including middle heat transfer section (4), middle heat transfer section (4) both ends are equipped with a pipe case, middle heat transfer section (4) are including casing (4.3), casing (4.3) both ends are equipped with the tube sheet, tube sheet connecting tube case, it is equipped with the heat exchange tube to run through the tube sheet, heat exchange tube both ends intercommunication pipe case, the heat exchange tube is concentric lamellar array along the tube sheet and arranges, spiral baffling rod (4.4) have been arranged between the adjacent layer heat exchange tube, form spiral baffling space in casing (4.3).
2. The split-flow spiral baffle rod heat exchanger according to claim 1, wherein the heat exchange tube is a heat exchange tube A (5), the heat exchange tube A (5) is a variable diameter light pipe, and the diameters of two ends of the variable diameter light pipe are smaller than the diameter of the middle part of the variable diameter light pipe.
3. The split-flow spiral baffling rod heat exchanger according to claim 2, wherein a heat exchange tube B (10) is arranged through the center of the tube plate, the heat exchange tube B (10) is additionally provided with spiral baffling fins (11) on the basis of the heat exchange tube A (5), the spiral baffling fins (11) are arranged around the heat exchange tube A (5), and the spiral baffling fins (11) are arranged in the middle of the heat exchange tube A (5).
4. The split-flow spiral rod baffle heat exchanger of claim 3, wherein the spiral baffle (11) is a continuous spiral baffle.
5. The split-flow spiral rod baffle heat exchanger of claim 3, wherein the spiral baffles (11) are arranged with the same pitch as the spiral rod baffles.
6. The split-flow spiral rod baffle heat exchanger according to any of claims 1-5, wherein the spiral rods (4.4) are of the same cross-sectional diameter; the layers of spiral baffle rods (4.4) are arranged concentrically and spirally.
7. The split-flow spiral baffle rod heat exchanger according to claim 6, wherein a pull rod (4.5) is arranged in each layer of heat exchange tube, the pull rod (4.5) is fixedly connected with the spiral baffle rod (4.4), the pull rod (4.5) is a reducing pull rod, and the diameters of two ends of the reducing pull rod are smaller than the diameter of the middle part of the reducing pull rod.
8. The split flow spiral rod baffle heat exchanger of claim 7 wherein the tie rods (4.5) are uniformly arranged around the tube sheet center.
9. The split-flow spiral rod baffle heat exchanger of claim 6, wherein the ends of the spiral rods (4.4) are attached to the tube sheet by fixing rods (4.8).
10. The split-flow spiral rod baffle heat exchanger according to claim 6, characterized in that the housing (4.3) is provided with a movable saddle (8) and a fixed saddle (9) at the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020530845.2U CN211926599U (en) | 2020-04-10 | 2020-04-10 | Shunting spiral baffling rod heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020530845.2U CN211926599U (en) | 2020-04-10 | 2020-04-10 | Shunting spiral baffling rod heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN211926599U true CN211926599U (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020530845.2U Active CN211926599U (en) | 2020-04-10 | 2020-04-10 | Shunting spiral baffling rod heat exchanger |
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| CN (1) | CN211926599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226288A1 (en) * | 2022-05-27 | 2023-11-30 | 茂名重力石化装备股份公司 | Heat exchanger with bidirectional pull rod assembly |
-
2020
- 2020-04-10 CN CN202020530845.2U patent/CN211926599U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226288A1 (en) * | 2022-05-27 | 2023-11-30 | 茂名重力石化装备股份公司 | Heat exchanger with bidirectional pull rod assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Split-flow helical baffle rod heat exchanger Effective date of registration: 20220819 Granted publication date: 20201113 Pledgee: Agricultural Bank of China Limited Zibo Linzi Branch Pledgor: SHANDONG MEILING CHEMICAL EQUIPMENT Co.,Ltd. Registration number: Y2022980013135 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230615 Granted publication date: 20201113 Pledgee: Agricultural Bank of China Limited Zibo Linzi Branch Pledgor: SHANDONG MEILING CHEMICAL EQUIPMENT Co.,Ltd. Registration number: Y2022980013135 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Split flow spiral baffle heat exchanger Effective date of registration: 20230615 Granted publication date: 20201113 Pledgee: Agricultural Bank of China Limited Zibo Linzi Branch Pledgor: SHANDONG MEILING CHEMICAL EQUIPMENT Co.,Ltd. Registration number: Y2023980044356 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230824 Granted publication date: 20201113 Pledgee: Agricultural Bank of China Limited Zibo Linzi Branch Pledgor: SHANDONG MEILING CHEMICAL EQUIPMENT Co.,Ltd. Registration number: Y2023980044356 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Split flow spiral baffle heat exchanger Effective date of registration: 20230925 Granted publication date: 20201113 Pledgee: Agricultural Bank of China Limited Zibo Linzi Branch Pledgor: SHANDONG MEILING CHEMICAL EQUIPMENT Co.,Ltd. Registration number: Y2023980058989 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20201113 Pledgee: Agricultural Bank of China Limited Zibo Linzi Branch Pledgor: SHANDONG MEILING CHEMICAL EQUIPMENT Co.,Ltd. Registration number: Y2023980058989 |