CN221121417U - LNG pipeline heat recovery device - Google Patents
LNG pipeline heat recovery device Download PDFInfo
- Publication number
- CN221121417U CN221121417U CN202323331776.5U CN202323331776U CN221121417U CN 221121417 U CN221121417 U CN 221121417U CN 202323331776 U CN202323331776 U CN 202323331776U CN 221121417 U CN221121417 U CN 221121417U
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- heat
- heat exchange
- pipe
- heat recovery
- fixedly connected
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- 238000011084 recovery Methods 0.000 title claims abstract description 79
- 238000004321 preservation Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 150000001875 compounds Chemical class 0.000 claims 6
- 238000004804 winding Methods 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 65
- 239000003345 natural gas Substances 0.000 abstract description 32
- 239000003949 liquefied natural gas Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 239000002737 fuel gas Substances 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model belongs to the technical field of fuel gas transportation, in particular to an LNG pipeline heat recovery device, which comprises a heat recovery pipe, wherein both ends of the heat recovery pipe are respectively provided with a liquid inlet end and a liquid outlet end, a heat exchange pipe is arranged in the heat recovery pipe, the heat exchange pipe is made of copper or other metals with good heat conduction effects, and the heat exchange pipe comprises two connecting ends; according to the utility model, the air in the heat exchange tube is heated through the heater, the heat exchange is performed through the heat exchange tube and the natural gas in the center of the interior of the heat exchange tube, the heat exchange area is enlarged, the heat exchange time is prolonged, the natural gas in the edge area of the heat exchange tube is subjected to heat exchange through the heating belt, and the heat loss is reduced through the heat preservation shell.
Description
Technical Field
The utility model relates to the technical field of fuel gas transportation, in particular to an LNG pipeline heat recovery device.
Background
At present, a low-temperature control valve is usually arranged on LNG production equipment to control the temperature of LNG, but in the LNG production operation process, the low-temperature control valve is frequently frozen and blocked, natural gas flow suddenly drops when the low-temperature control valve is frozen and blocked, and the natural gas temperature drops. In the prior art, when the low-temperature control valve is frozen and blocked, the upstream valve and the downstream valve at the two sides of the low-temperature control valve are respectively closed, and then the low-temperature control valve is naturally thawed by people, but the thawing mode needs long time, has low efficiency, and can lead to long-time production stoppage of the natural gas production device.
The traditional Chinese patent with the bulletin number of CN219300188U discloses an LNG pipeline heat recovery device, which comprises a heat recovery pipe, the two ends of the heat recovery pipe are provided with connecting ports, the outer side of the heat recovery pipe is provided with a heating sleeve in annular distribution, the inside of the heat recovery pipe is provided with a heat exchange cavity, the inside of the heating sleeve is provided with a heating cavity, a heat conducting layer is arranged between the heat exchange cavity and the heating cavity, a heat exchange U-shaped pipe communicated with the heating cavity is arranged in the heat exchange cavity, and a heating assembly is arranged in the heating cavity.
With respect to the above and related art, the inventors believe that there are often the following drawbacks: the device exchanges heat with liquefied natural gas in the heat exchange U-shaped pipe, the contact area between the heat exchange U-shaped pipe and the natural gas in the central area of the heat exchange pipe is smaller, the contact time is shorter, and the heat exchange effect of the natural gas in the central area of the heat exchange pipe is poorer than that of the natural gas in the edge area of the heat exchange pipe, so that the device needs to be improved; therefore, an LNG pipeline heat recovery device is proposed to solve the above problems.
Disclosure of utility model
In order to overcome the defects in the prior art and solve the technical problems, the utility model provides an LNG pipeline heat recovery device.
The technical scheme adopted for solving the technical problems is as follows: the utility model discloses an LNG pipeline heat recovery device, which comprises a heat recovery pipe, wherein two ends of the heat recovery pipe are respectively provided with a liquid inlet end and a liquid outlet end, the heat recovery pipe is internally provided with a heat recovery pipe, the heat recovery pipe is made of metal copper or other metals with good heat conduction effects, the heat recovery pipe comprises two connecting ends, one ends of the connecting ends are rotationally connected with rotary joints, the opposite ends of the two rotary joints are rotationally connected with heat recovery ends, the connecting ends penetrate through and are fixedly connected with the heat recovery pipe, the heat recovery pipe is internally provided with a heat recovery assembly, the heat recovery assembly comprises a heater, the heater is arranged in the heat recovery pipe, the heat recovery pipe is externally provided with a heat preservation assembly, the heat preservation assembly comprises a heat preservation shell, the heat preservation shell is made of polyurethane materials and the like, the heat preservation shell is fixedly arranged outside the heat recovery pipe, during use, the heat recovery pipe is internally provided with a natural gas pipeline through the liquid inlet end and the liquid outlet end, the heat recovery heater is in connection with natural gas pipeline, heat recovery of the heat recovery pipe is internally provided with natural gas at the center, the heat recovery pipe is in heat recovery and the heat recovery pipe is fixedly connected with the heat recovery end, the heat recovery assembly is provided with a heat recovery end, the heat recovery assembly is capable of reducing the heat recovery efficiency of heat recovery pipe and reducing the heat loss of natural gas through the heat recovery pipe, and reducing the heat recovery efficiency, and guaranteeing the heat recovery efficiency, and reducing the heat recovery efficiency is guaranteed, and the heat recovery efficiency is low, and can be guaranteed, and the heat recovery can be used.
Preferably, the heat exchange assembly further comprises a mounting end, the mounting end is fixedly arranged outside the connecting end and communicated with the connecting end, and the heater penetrates through the mounting end and is fixedly connected with the mounting end.
Preferably, the heat exchange assembly further comprises a driver, the driver is fixedly arranged on the outer wall of the connecting end, the driving end of the driver penetrates through the connecting end and extends to the inside, the outer wall of the driving end of the driver is fixedly connected with a plurality of connecting frames, the other ends of the connecting frames are fixedly connected with the heat exchange ends, the driver operates to drive the heat exchange ends to rotate, the heat conduction pipe can rotationally extend the heat exchange area, and the heat exchange effect is further improved on natural gas at the edge.
Preferably, the driving end of the driver is fixedly connected with a blade, the driver drives the blade to rotate to generate air flow, and drives hot air flow in the heat exchange tube to flow along the heat conduction tube, so that the hot air can be circularly heated after being absorbed and cooled, and the heat exchange efficiency is improved.
Preferably, the surface of the heat exchange end is fixedly connected with a plurality of U-shaped heat conducting pipes, the heat conducting pipes are communicated with the heat exchange end, the heights of the heat conducting pipes can be set to be various sizes, and the rotating area of the heat conducting pipes is enlarged.
Preferably, the outer wall of the heat exchange end is fixedly connected with a plurality of turbulence rings.
Preferably, the surface of the turbulence ring is provided with a plurality of flow holes, the heat exchange end rotates to enable the turbulence ring to synchronously rotate, so that spiral flow is formed when natural gas passes through the flow holes, the natural gas is fully contacted with the heat exchange tube, and the overall heat exchange effect of the natural gas is further improved.
Preferably, the heat preservation assembly further comprises a heating belt, and the heating belt is wound and installed outside the heat recovery pipe.
The utility model has the advantages that:
1. According to the utility model, the air in the heat exchange tube is heated through the heater, the heat exchange is performed through the heat exchange tube and the natural gas in the center of the interior of the heat exchange tube, the heat exchange area is enlarged, the heat exchange time is prolonged, the natural gas in the edge area of the heat exchange tube is subjected to heat exchange through the heating belt, and the heat loss is reduced through the heat preservation shell.
2. According to the utility model, the heat-conducting pipe can rotationally extend the heat exchange area through the operation of the driver, the heat exchange effect is further improved by exchanging heat with the natural gas at the edge, and the blades rotate to generate air flow so as to drive the hot air flow in the heat-conducting pipe to flow along the heat-conducting pipe, so that the hot air flow can be circularly heated after being absorbed and cooled, and the heat exchange efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a cross-sectional view of FIG. 1 of the present utility model;
FIG. 3 is a cross-sectional view of a heat exchange tube of the present utility model;
FIG. 4 is a side view of FIG. 3 in accordance with the present utility model;
Fig. 5 is a schematic diagram of the structure a of fig. 3 according to the present utility model.
In the figure: 1. a heat recovery pipe; 2. a liquid inlet end; 3. a liquid outlet end; 4. a heat exchange tube; 41. a connection end; 42. a rotary joint; 43. a heat exchange end; 44. a heat conduction pipe; 45. a turbulence ring; 46. a flow hole; 5. a heat exchange assembly; 51. a heater; 52. a mounting end; 53. a driver; 54. a connecting frame; 55. a blade; 6. a thermal insulation assembly; 61. a heat-insulating housing; 62. and (5) heating the belt.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, an LNG pipeline heat recovery device includes a heat recovery tube 1, two ends of the heat recovery tube 1 are respectively provided with a liquid inlet end 2 and a liquid outlet end 3, a heat recovery tube 4 is installed in the heat recovery tube 1, the heat recovery tube 4 is made of metal copper or other metal with good heat conduction effect, the heat recovery tube 4 includes two connection ends 41, one end of the connection ends 41 is rotationally connected with a rotary joint 42, opposite ends of the two rotary joints 42 are rotationally connected with a heat recovery end 43, the connection ends 41 penetrate through and are fixedly connected with the heat recovery tube 1, a heat recovery assembly 5 is installed in the heat recovery tube 4, the heat recovery assembly 5 includes a heater 51, the heater 51 is installed in the heat recovery tube 4, a heat preservation assembly 6 is installed outside the heat recovery tube 1, the heat preservation assembly 6 includes a heat preservation shell 61, the heat preservation shell 61 adopts a heat preservation material such as polyurethane material, the heat preservation shell 61 is fixedly installed outside the heat recovery tube 1, in use, through the connection of the liquid inlet end 2 and the liquid outlet end 3, the heater 51 heats air in the heat recovery tube 4, and the heat recovery tube is through the heat recovery tube, and the heat recovery tube is heated by the opposite ends, the heat recovery tube is heated by the heat recovery tube 1, the heat recovery tube is further heated by the natural gas, the heat recovery tube is further heated by the heat recovery tube 1, the heat loss is guaranteed, the heat loss is reduced, the heat loss is guaranteed, and the natural gas is guaranteed, and the heat loss is further, and the heat is guaranteed, and the heat is further through the heat recovery tube 1, and the heat is further has the heat exchange tube is guaranteed.
The heat exchange assembly 5 further includes a mounting end 52, the mounting end 52 being fixedly mounted outside the connection end 41 and penetrating the connection end 41, and the heater 51 passing through the mounting end 52 and being fixedly connected with the mounting end 52.
The heat exchange assembly 5 further comprises a driver 53, the driver 53 is fixedly arranged on the outer wall of the connecting end 41, the driving end of the driver 53 penetrates through the connecting end 41 and extends to the inside, the outer wall of the driving end of the driver 53 is fixedly connected with a plurality of connecting frames 54, the other ends of the connecting frames 54 are fixedly connected with the heat exchange ends 43, the driver 53 operates to drive the heat exchange ends 43 to rotate, the heat conduction pipe 44 can rotationally extend the heat exchange area, and the heat exchange effect is further improved on natural gas at the edge.
The driving end of the driver 53 is fixedly connected with the blade 55, the driver 53 drives the blade 55 to rotate to generate air flow, and drives hot air flow inside the heat exchange tube 4 to flow along the heat conducting tube 44, so that the hot air flow can be circularly heated after being absorbed and cooled, and the heat exchange efficiency is improved.
The surface of the heat exchange end 43 is fixedly connected with a plurality of U-shaped heat conducting pipes 44, the heat conducting pipes 44 are communicated with the heat exchange end 43, the height of the heat conducting pipes 44 can be set to be various sizes, and the rotating area of the heat conducting pipes 44 is enlarged.
The outer wall of the heat exchange end 43 is fixedly connected with a plurality of turbulence rings 45.
The surface of the turbulence ring 45 is provided with a plurality of circulation holes 46, and the heat exchange end 43 rotates to enable the turbulence ring 45 to synchronously rotate, so that the natural gas forms spiral flow when passing through the circulation holes 46, fully contacts with the heat exchange tube 4, and further improves the overall heat exchange effect of the natural gas.
The heat preservation assembly 6 further comprises a heating belt 62, and the heating belt 62 is wound and installed outside the heat recovery pipe 1.
All electric components in the scheme are connected with an adaptive power supply through wires by a person skilled in the art, and an appropriate controller is selected according to actual conditions so as to meet control requirements, specific connection and control sequences, and the electric connection is completed by referring to the following working principles in the working sequence among the electric components, wherein the detailed connection means are known in the art, and the following main description of the working principles and processes is omitted from the description of electric control.
None of the parts of the device are the same as or can be implemented using prior art.
When the natural gas heat exchange device is used, the natural gas pipeline is connected through the liquid inlet end 2 and the liquid outlet end 3, the operation heater 51 is used for heating air in the heat exchange tube 4, exchanging heat between the heat exchange tube 4 and natural gas in the center of the interior of the heat exchange tube 1, exchanging heat between the natural gas in the edge area of the heat exchange tube 1 through the heating belt 62, reducing heat loss through the heat preservation shell 61, integrally improving the heat exchange efficiency of the natural gas in the heat exchange tube 1, guaranteeing the temperature of liquefied natural gas, ensuring the circulation of subsequent gas, and avoiding the problem that the low-temperature operation of the gas restricts the increase of the air supply quantity in the future;
The driver 53 operates to drive the heat exchange end 43 to rotate, so that the heat transfer tube 44 can rotate to extend the heat exchange area, heat exchange is further performed on the natural gas at the edge, the heat exchange effect is further improved, the heat exchange end 43 rotates to enable the vortex ring 45 to rotate synchronously, so that spiral flow is formed when the natural gas passes through the flow holes 46, the natural gas fully contacts with the heat exchange tube 4, the overall heat exchange effect of the natural gas is further improved, the blades 55 rotate to generate air flow, hot air flow inside the heat exchange tube 4 is driven to flow along the heat transfer tube 44, the hot air flow can be circularly heated after being absorbed by cold, and the heat exchange efficiency is improved.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (8)
1. An LNG pipeline heat recovery device, includes heat recovery pipe (1), its characterized in that: the utility model discloses a heat exchange device, including compound heat pipe (1), feed liquor end (2) and play liquid end (3) are installed respectively at the both ends of compound heat pipe (1), internally mounted of compound heat pipe (1) has heat exchange tube (4), heat exchange tube (4) include two link (41), the one end rotation of link (41) is connected with rotary joint (42), two opposite one end rotation of rotary joint (42) is connected with heat exchange end (43), link (41) run through and with compound heat pipe (1) fixed connection, internally mounted of heat exchange tube (4) has heat exchange assembly (5), heat exchange assembly (5) include heater (51), the inside at heat exchange tube (4) is installed to heater (51), the externally mounted of compound heat pipe (1) has heat preservation subassembly (6), heat preservation subassembly (6) include heat preservation casing (61), heat preservation casing (61) fixed mounting is in the outside of compound heat pipe (1).
2. The LNG line reheat apparatus of claim 1, wherein: the heat exchange assembly (5) further comprises a mounting end (52), the mounting end (52) is fixedly mounted outside the connecting end (41) and communicated with the connecting end (41), and the heater (51) penetrates through the mounting end (52) and is fixedly connected with the mounting end (52).
3. The LNG line reheat apparatus of claim 1, wherein: the heat exchange assembly (5) further comprises a driver (53), the driver (53) is fixedly arranged on the outer wall of the connecting end (41), the driving end of the driver (53) penetrates through the connecting end (41) and extends to the inside, the outer wall of the driving end of the driver (53) is fixedly connected with a plurality of connecting frames (54), and the other end of each connecting frame (54) is fixedly connected with the heat exchange end (43).
4. The LNG line reheat apparatus of claim 3, wherein: the driving end of the driver (53) is fixedly connected with a blade (55).
5. The LNG line reheat apparatus of claim 1, wherein: the surface of the heat exchange end (43) is fixedly connected with a plurality of U-shaped heat conducting pipes (44), and the heat conducting pipes (44) are communicated with the heat exchange end (43).
6. The LNG line reheat apparatus of claim 5, wherein: the outer wall of the heat exchange end (43) is fixedly connected with a plurality of turbulence rings (45).
7. The LNG line reheat apparatus of claim 6, wherein: the surface of the turbulence ring (45) is provided with a plurality of circulation holes (46).
8. The LNG line reheat apparatus of claim 1, wherein: the heat preservation assembly (6) further comprises a heating belt (62), and the heating belt (62) is installed outside the heat recovery pipe (1) in a winding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323331776.5U CN221121417U (en) | 2023-12-07 | 2023-12-07 | LNG pipeline heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323331776.5U CN221121417U (en) | 2023-12-07 | 2023-12-07 | LNG pipeline heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221121417U true CN221121417U (en) | 2024-06-11 |
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ID=91368143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323331776.5U Active CN221121417U (en) | 2023-12-07 | 2023-12-07 | LNG pipeline heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221121417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118564753A (en) * | 2024-07-30 | 2024-08-30 | 陕西欧迪亚实业有限公司 | Surrounding type pipeline heating device |
-
2023
- 2023-12-07 CN CN202323331776.5U patent/CN221121417U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118564753A (en) * | 2024-07-30 | 2024-08-30 | 陕西欧迪亚实业有限公司 | Surrounding type pipeline heating device |
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