CN212340041U - Flow guide structure at inlet of upper shell pass of wound tube type heat exchanger - Google Patents
Flow guide structure at inlet of upper shell pass of wound tube type heat exchanger Download PDFInfo
- Publication number
- CN212340041U CN212340041U CN202020543206.XU CN202020543206U CN212340041U CN 212340041 U CN212340041 U CN 212340041U CN 202020543206 U CN202020543206 U CN 202020543206U CN 212340041 U CN212340041 U CN 212340041U
- Authority
- CN
- China
- Prior art keywords
- frame body
- shell
- heat exchanger
- flow guide
- end part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a water conservancy diversion structure of winding tube heat exchanger upper shell side import department for set up in the casing of heat exchanger and with the shell side import on the heat exchanger is relative, its characterized in that including: the support members are distributed at intervals along the circumferential direction of the reinforcing ring and connected with the reinforcing ring to form a cylindrical frame body sleeved outside the straight pipe section of the heat exchange pipe, the first end part of the frame body becomes a free end, the second end part of the frame body extends towards the spiral section of the heat exchange pipe and is connected to the inner wall of the shell, and the middle part of the frame body corresponds to a shell side inlet; the guide plates are sequentially and continuously paved on the peripheral wall of the frame body around the frame body; the guide plate positioned at the second end part of the frame body is connected with the shell to form a guide cavity communicated with the shell side inlet; a flow guide port for communicating the flow guide cavity with the shell side of the heat exchanger is formed between the flow guide plate positioned at the first end part of the frame body and the inner wall of the shell. The application can reduce the influence of thermal expansion factors and is convenient to install and overhaul.
Description
Technical Field
The utility model belongs to the technical field of the heat exchanger, concretely relates to winding tubular heat exchanger goes up water conservancy diversion structure of shell side import department.
Background
The wound tube type heat exchanger as an efficient energy-saving heat exchanger has the advantages of high sealing reliability, good pressure resistance, good vibration resistance and easy realization of large-scale production, and can be suitable for heat exchange occasions with harsh conditions such as high temperature, high pressure and the like. The structure of the winding pipe type heat exchanger can refer to the structures disclosed in the utility model patent with the patent number ZL201420757685.x, a winding pipe type heat exchanger with high heat exchange efficiency (the publication number is CN204388658U), the utility model patent with the patent number is ZL201720622189.7, a heat exchanger group (the publication number is CN206755943U) and the like.
Nowadays, as the scale of the device is enlarged, the wound tube heat exchanger is further enlarged, and the prior art has the following problems in the area of the shell side inlet:
1. the straight tube section of the heat exchange tube at the shell pass inlet is not utilized to participate in heat exchange, and the heat exchange utilization of the part is considerable along with the increasing size of heat exchanger equipment.
2. At present, the problem of flow field distribution is not considered at the shell pass inlet of the wound tube type heat exchanger, and the flow field distribution of the shell pass inlet area of the wound tube type heat exchanger directly influences the uniform distribution of fluid in the shell pass of the heat exchanger, so that the heat exchange efficiency of the heat exchanger is influenced.
In order to solve the technical problem, the utility model patent with patent number ZL201820426101.9 (CN 208108907U) discloses a shell inlet and outlet flow guide structure of a heat exchanger, which comprises a guide cylinder, a flow guide cavity is formed between the guide cylinder and the shell for communicating the shell inlet or the shell outlet, a flow guide opening facing the heat exchange tube straight tube section is arranged on the guide cylinder, and the flow guide opening connects the flow guide cavity and the shell of the heat exchanger. This patent can eliminate shell side fluid and directly erode the heat exchange tube and wearing and tearing such as the heat exchange tube attenuate that arouses, can also further improve heat transfer effect, improve heat exchange efficiency when avoiding equipment vibrations.
However, during actual heat exchange, the influence of thermal expansion factors on the flow guide structure needs to be considered due to high temperature; and the installation and maintenance problems of the flow guide structure need to be considered.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art's current situation, provide a water conservancy diversion structure of winding tubular heat exchanger upper shell side import department to reduce the influence of the thermal expansion factor and be convenient for install, overhaul.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a water conservancy diversion structure of winding tube heat exchanger upper shell side import department for set up in the casing of heat exchanger and with the shell side import on the heat exchanger is relative, its characterized in that including: the heat exchanger comprises a plurality of support members, a plurality of guide plates and at least one reinforcing ring, wherein the support members are distributed at intervals along the circumferential direction of the reinforcing ring and connected with the reinforcing ring to form a cylindrical frame body sleeved outside a straight pipe section of a heat exchange pipe;
the guide plates are sequentially and continuously paved on the peripheral wall of the frame body around the frame body; the guide plate positioned at the second end part of the frame body is connected with the shell to form a guide cavity communicated with the shell side inlet; and a flow guide port for communicating the flow guide cavity with the shell side of the heat exchanger is formed between the flow guide plate positioned at the first end part of the frame body and the inner wall of the shell.
In the above scheme, in order to make the fluid more uniformly distributed after entering the frame body, the center line of the frame body is arranged in the direction away from the shell side inlet and is deviated from the center line of the shell of the heat exchanger, so that the distance between the support member away from the shell side inlet and the heat exchange tube is farther, and more fluid flow can be accommodated between the support member and the heat exchange tube. And/or the upper end of the guide plate is designed into an inclined structure, so that the minimum gap between the assembled guide plate and the tube plate is adjacent to the shell-side inlet, namely, the guide opening is gradually increased from the shell-side inlet to the side back to the shell-side inlet, and the guide opening is favorable for guiding the fluid entering from the shell-side inlet to the guide opening opposite to the shell-side inlet.
In each scheme, for convenience of manufacture and reduction of the influence of thermal expansion factors, each support is designed to be in an L shape, and the vertical section and the horizontal section of the L-shaped support are in smooth transition connection.
In order to facilitate the laying of the guide plates, the reinforcing ring is arranged in the frame body, and the outer side wall of the reinforcing ring is connected with each supporting piece.
Preferably, the reinforcing rings are at least two and are respectively connected to the first end portion and the second end portion of the frame body.
In the above scheme, in order to facilitate the installation, the disassembly and the replacement of the guide plate, the guide plate can enter and exit the shell through the shell side inlet. So, can design the size of guide plate according to the internal diameter size of shell side import for the guide plate can pass through the shell side import, and then the installation and the change of the guide plate of being convenient for.
The guide plate is connected to the frame body through bolts or rivets or directly welded to the frame body.
Compared with the prior art, the utility model has the advantages of: the flow guide structure is arranged into a structure formed by splicing a plurality of supporting pieces, the flow guide plate and the reinforcing ring, and the shape of the flow guide plate can be selected according to a frame body structure formed by surrounding the supporting pieces and the reinforcing ring and actual needs, so that the flow guide structure is convenient to mount, dismount and maintain; the structure is simple, and the implementation is convenient; meanwhile, one end of the support becomes a free end and the splicing type guide plate structure is adopted, so that the problem that the integral guide structure in the prior art is seriously deformed under the condition of thermal expansion is well solved; in the application, the flow guide cavity is formed between the flow guide plate at the second end of the frame body and the shell, and the flow guide port is formed between the flow guide plate at the first end of the frame body and the inner wall of the shell, so that fluid entering the shell side inlet is uniformly distributed in the flow guide cavity and flows out through the flow guide port, and the fluid flowing out of the flow guide port passes through the straight pipe section of the heat exchange pipe and can exchange heat with a medium in the straight pipe section, so that the heat exchange efficiency is improved;
after increasing this water conservancy diversion structure for winding tubular heat exchanger in this application, except can satisfying high-efficient and low pressure drop's technological requirement, still solved general heat exchanger to the undulant tolerance of operating mode poor, the easy problem of leaking in taking place, be the reliable selection of large-scale device heat exchanger. Meanwhile, the wound tube type heat exchanger has strong device fluctuation resistance, improves the reliability of equipment, brings convenience to production and operation, and has wide market application prospect.
Drawings
Fig. 1 is a schematic view of an installation structure of a flow guide structure on a wound tube heat exchanger according to an embodiment of the present invention;
fig. 2 is a partial schematic view of the top view of the flow guiding structure (the flow guiding plate is omitted, and the number of the reinforcing rings is three) in the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1-2, the flow guiding structure of the present invention is a preferred embodiment of the flow guiding structure, and the flow guiding structure is disposed at the shell side inlet 10 of the wound tube heat exchanger.
The winding tube type heat exchanger is of a conventional structure and comprises a vertically arranged shell 1; a tube sheet 2 disposed on an end of the shell 1; a tube box provided on the tube sheet 2; a shell side inlet 10 and a shell side outlet which are arranged on the shell 1; a heat exchange tube 3 (the number of the heat exchange tubes in the figure is only schematically expressed) spirally wound into a plurality of tube layers from inside to outside in the shell 1, wherein the spirally wound part on the heat exchange tube 3 forms a spiral section 31 of the heat exchange tube, and the end part of the heat exchange tube 3, namely a straight tube section 32, is supported on the tube plate 2; the shell side inlet 10 is arranged corresponding to the spiral section 31 or the joint of the spiral section 31 and the straight pipe section 32.
The flow guiding structure in this embodiment is disposed in the shell 1 of the heat exchanger and opposite to the shell side inlet 10 of the heat exchanger. This water conservancy diversion structure is including a plurality of support piece 4, a plurality of guide plate 5 and at least one reinforcement ring 6, specifically is:
the supporting members 4 are circumferentially distributed at intervals along the horizontally placed reinforcing ring 6 and connected with the reinforcing ring 6 to form a cylindrical frame body 40 sleeved outside the straight tube section 32 of the heat exchange tube, a first end part of the frame body 40 faces the tube plate 2 in the heat exchanger to form a free end, a second end part of the frame body 40 extends towards the spiral section 31 of the heat exchange tube 3 and is connected to the inner wall of the shell 1, and the middle part between the first end part and the second end part of the frame body 40 corresponds to the shell side inlet 10. In the present embodiment, each support 4 is designed into an L shape, the vertical section and the horizontal section of the L-shaped support 4 are smoothly transited, the end of the vertical section of the L-shaped support 4 becomes a free end, i.e., is not connected with the inner wall of the shell 1 or the tube plate 2, and the end of the horizontal section of the L-shaped support 4 is connected with the inner wall of the shell 1 in consideration of thermal expansion caused by high temperature. And in order to make the fluid distribution more uniform after entering the shell side, the center line N1 of the frame body 40 is arranged in a direction away from the shell side inlet 10 and is deviated from the center line N2 of the shell 1 of the heat exchanger, as shown in fig. 1.
As shown in fig. 1, the baffles 5 are sequentially and continuously laid on the circumferential wall of the frame body 40 around the frame body 40; the guide plate 5 at the second end of the frame body 40 is connected with the inner wall of the shell 1, i.e. closed, and a guide cavity 100 communicated with the shell side inlet 10 is formed between the guide plate 5 and the shell 1; a flow guide opening 400 for communicating the flow guide cavity 100 and the shell side of the heat exchanger is formed between the flow guide plate 5 at the first end of the frame body 40 and the inner wall of the shell 1. In order to make the distribution of the shell-side fluid in the shell-side more uniform, the diversion opening 400 is designed to be inclined in the circumferential direction, specifically, the upper end of the diversion plate 5 is designed to be an inclined structure, so that the minimum gap (i.e., the diversion opening) between the assembled diversion plate 5 and the tube plate 2 is adjacent to the shell-side inlet 10, that is, the diversion opening 400 is gradually increased from the shell-side inlet 10 to the side away from the shell-side inlet, which is beneficial to guiding the shell-side fluid to the diversion opening opposite to the shell-side inlet. Meanwhile, in order to facilitate installation and maintenance, the guide plate 5 can enter and exit the shell 1 through the shell pass inlet 10; the guide plate 5 can be connected to the frame body 40 through bolts or rivets; or directly welded to the frame body 40.
In this embodiment, two of the reinforcing rings 6 are respectively connected to the first end portion and the middle portion of the frame body 40, as shown in fig. 1 (preferably, when there is only one reinforcing ring 6, it is connected to the first end portion of the frame body 40; if there are three reinforcing rings, they are distributed at the first end portion, the middle portion and the second end portion, as shown in fig. 2), and the outer side wall of each reinforcing ring 6 is connected to each supporting member 4 to further support each supporting member 4, thereby improving the structural stability of the supporting member 4 and facilitating the laying of the baffle 5.
When the device is installed, the support piece 4 can be connected into the shell 1, and the guide plate 5 is laid on the peripheral wall of the frame body 40 formed by the support piece 4 and the reinforcing ring 6; the flow guide structure can be integrally built outside the heat exchanger and then integrally installed in the shell 1 of the heat exchanger. No matter what kind of mode is adopted for installation, all can change each guide plate 5 alone during the maintenance, also can overhaul heat exchange tube 3 through demolising several guide plates 5 after, install these several guide plates 5 after having overhauld again.
When the heat exchanger is used, fluid enters from the shell pass inlet 10 and is uniformly distributed in the flow guide cavity 100 between the flow guide plate 5 and the shell 1, the fluid in the flow guide cavity 100 flows out through the flow guide opening 400 and flows into the shell pass of the heat exchanger after flowing through the straight tube section 32 of the heat exchange tube 3, so that the heat exchange of the straight tube section 32 of the heat exchange tube 3 can be ensured, the fluid in the shell pass is uniformly distributed, and the heat exchange efficiency is further improved.
In this embodiment, the guide plates 5 are laid on the frame body 40, and each adjacent guide plate 5 may be connected by welding or the like, but there may still be a case where there is not complete sealing connection, so that part of the fluid may flow out from the gap between two adjacent guide plates 5 and enter the shell pass, and the fluid flowing out from the gap occupies a small part of the flow, and most of the fluid still flows out from the guide opening 400, so that the flow guidance of the fluid in this application is not greatly affected.
Claims (8)
1. The utility model provides a water conservancy diversion structure of wound tube heat exchanger upper shell side import department for set up in shell (1) of heat exchanger and with shell side import (10) on the heat exchanger relatively, its characterized in that is including: the heat exchanger comprises a plurality of supporting pieces (4), a plurality of guide plates (5) and at least one reinforcing ring (6), wherein the supporting pieces (4) are distributed at intervals along the circumferential direction of the reinforcing ring (6) and connected with the reinforcing ring (6) to form a cylindrical frame body (40) sleeved outside a straight pipe section (32) of a heat exchange pipe, a first end part of the frame body (40) faces a pipe plate (2) in the heat exchanger to form a free end, a second end part of the frame body (40) extends towards a spiral section (31) of the heat exchange pipe (3) and is connected to the inner wall of a shell (1), and the middle part between the first end part and the second end part of the frame body (40) corresponds to a shell side inlet (10);
each guide plate (5) is sequentially and continuously paved on the peripheral wall of the frame body (40) around the frame body (40); the guide plate (5) positioned at the second end part of the frame body (40) is connected with the shell (1) to form a guide cavity (100) communicated with the shell side inlet (10); a flow guide opening (400) for communicating the flow guide cavity (100) and the shell side of the heat exchanger is formed between the flow guide plate (5) positioned at the first end part of the frame body (40) and the inner wall of the shell.
2. The flow directing structure of claim 1, wherein: the centre line (N1) of the frame (40) is arranged in a direction away from the shell side inlet (10) and deviates from the centre line (N2) of the shell (1) of the heat exchanger.
3. The flow guide structure according to claim 1 or 2, wherein: the upper end of the guide plate (5) is designed into an inclined structure, so that the minimum gap between the assembled guide plate (5) and the tube plate (2) is adjacent to the shell side inlet (10).
4. The flow guide structure according to claim 1 or 2, wherein: each support (4) is designed into an L shape, and the vertical section and the horizontal section of the L-shaped support (4) are in smooth transition connection.
5. The flow guide structure according to claim 1 or 2, wherein: the reinforcing ring (6) is arranged in the frame body (40), and the outer side wall of the reinforcing ring (6) is connected with each supporting piece (4).
6. The flow directing structure of claim 5, wherein: the two reinforcing rings (6) are respectively connected to the first end part and the second end part of the frame body (40).
7. The flow guide structure according to claim 1 or 2, wherein: the guide plate (5) can enter and exit the shell (1) through the shell side inlet (10).
8. The flow guide structure according to claim 1 or 2, wherein: the guide plate (5) is connected to the frame body (40) through bolts or rivets or directly welded to the frame body (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020543206.XU CN212340041U (en) | 2020-04-14 | 2020-04-14 | Flow guide structure at inlet of upper shell pass of wound tube type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020543206.XU CN212340041U (en) | 2020-04-14 | 2020-04-14 | Flow guide structure at inlet of upper shell pass of wound tube type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212340041U true CN212340041U (en) | 2021-01-12 |
Family
ID=74070330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020543206.XU Active CN212340041U (en) | 2020-04-14 | 2020-04-14 | Flow guide structure at inlet of upper shell pass of wound tube type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212340041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035399A (en) * | 2021-03-05 | 2021-06-25 | 哈尔滨工程大学 | Self-driven drainage type efficient heat exchanger with built-in containment |
-
2020
- 2020-04-14 CN CN202020543206.XU patent/CN212340041U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035399A (en) * | 2021-03-05 | 2021-06-25 | 哈尔滨工程大学 | Self-driven drainage type efficient heat exchanger with built-in containment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212340041U (en) | Flow guide structure at inlet of upper shell pass of wound tube type heat exchanger | |
| CN219454776U (en) | Novel rotatable vane high-flux heat exchanger | |
| CN110207508A (en) | A kind of heat exchanger | |
| CN218516735U (en) | Series pipe reactor with closed type waveform expansion joint | |
| CN115253924B (en) | Vertical radial flow reactor | |
| CN211906974U (en) | Integrated nuclear reactor primary loop heat exchanger | |
| CN212658096U (en) | Continuous spiral baffle plate shell-and-tube heat exchanger | |
| CN2625833Y (en) | Spiral baffle pore plate supported rhombic finned tube bundle heat exchanger | |
| CN101936673A (en) | Macroporous plate convergent-divergent pipe efficient heat exchanger | |
| CN211823986U (en) | Spiral plate type heat exchanger | |
| CN109373798B (en) | Gas inlet uniform distribution device for plate heat exchanger | |
| CN205965792U (en) | Gas heat exchange type isothermal reactor | |
| CN220250778U (en) | Novel energy storage fused salt electric heater | |
| CN218545416U (en) | Fixing device of rocket engine spiral pipe and rocket engine heat exchanger | |
| CN221593586U (en) | Tube-in-tube double-tube plate heat exchanger for cooling water for injection | |
| CN218155672U (en) | Multi-flow fixed tube plate heat exchanger | |
| CN216898490U (en) | Low pressure drop corrosion resistant shell-and-tube heat exchanger | |
| CN220304333U (en) | Tube type graphite heat exchanger with high heat exchange efficiency | |
| CN219829593U (en) | Novel external flow-guiding efficient heat exchanger | |
| CN217083418U (en) | Stepped spiral baffle air preheater | |
| CN213515168U (en) | Fluid uniform distribution structure at shell pass inlet of wound tube type heat exchanger | |
| CN214470218U (en) | Heterogeneous heat medium heat exchanger | |
| CN217275716U (en) | Spiral feeding wound heat exchanger | |
| CN214371903U (en) | Spiral baffle type double-pipe heat exchanger | |
| CN221666719U (en) | Flow equalizing structure of gas-gas heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315207 Jiaochuan Street Refining Road, Zhenhai District, Ningbo City, Zhejiang Province Patentee after: Zhenhai Petrochemical Construction and Installation Engineering Co.,Ltd. Address before: 315207 Jiaochuan Street Refining Road, Zhenhai District, Ningbo City, Zhejiang Province Patentee before: ZHENHAI PETROCHEMICAL JIANAN ENGINEERING Co.,Ltd. |