CN215063922U - BIU shell and tube heat exchanger - Google Patents
BIU shell and tube heat exchanger Download PDFInfo
- Publication number
- CN215063922U CN215063922U CN202120737239.2U CN202120737239U CN215063922U CN 215063922 U CN215063922 U CN 215063922U CN 202120737239 U CN202120737239 U CN 202120737239U CN 215063922 U CN215063922 U CN 215063922U
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- CN
- China
- Prior art keywords
- tube
- shell
- heat exchanger
- box
- plate
- 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.)
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- 238000005192 partition Methods 0.000 claims abstract description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 44
- 239000003345 natural gas Substances 0.000 abstract description 22
- 239000002699 waste material Substances 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000008676 import Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a BIU shell and tube heat exchanger, including the heat exchanger body, the heat exchanger body includes: the tube box is internally provided with a partition plate, the tube box is provided with an inlet positioned at the bottom of the tube box and an outlet positioned at the top of the tube box, the tube box is connected with a tube plate, the partition plate is connected with the tube plate, the tube plate is connected with a tube side, the tube side is connected with a shell side, the tube plate, the tube side and the shell side form a closed barrel space, a plurality of U-shaped tube bundles are installed in the barrel space, the tube bundles are fixedly welded on the tube plate, a plurality of baffle plates are installed on the tube bundles, the bottom of one end, close to the tube box, of the barrel space is provided with a barrel inlet, and the top of one end, close to the shell side, of the barrel space is provided with a barrel outlet; the multi-part low-temperature natural gas can be reheated once, the working efficiency is improved, the reheated natural gas enters the compressor to be used after being pressurized, and the waste of heat is avoided.
Description
Technical Field
The utility model relates to a heat exchanger, in particular to BIU shell and tube heat exchanger.
Background
When the phenomenon of freezing stifled appears in the liquefaction cold box when using, need let in the normal atmospheric temperature natural gas and unfreeze, later become the low temperature natural gas, let in the low temperature natural gas with the nitrogen gas after the heating usually and heat for the low temperature natural gas resumes the normal atmospheric temperature, and the problem that exists like this is: 1. the amount of nitrogen capable of being heated is small, so that the amount of low-temperature natural gas capable of being heated at one time is small, multiple times of heating are needed, and the working efficiency is reduced; 2. the heated nitrogen is directly discharged to cause waste.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned problem, provided a BIU shell and tube heat exchanger. The utility model adopts the technical proposal that: a BIU shell and tube heat exchanger comprising a heat exchanger body, the heat exchanger body comprising: the tube box is internally provided with a partition plate, the tube box is provided with an inlet positioned at the bottom of the tube box and an outlet positioned at the top of the tube box, the tube box is connected with a tube plate, the partition plate is connected with the tube plate, the tube plate is connected with a tube side, the tube side and the shell side form a closed barrel space, a plurality of U-shaped tube bundles are installed in the barrel space, the tube bundles are fixedly welded on the tube plate, a plurality of baffle plates are installed on the tube bundles, the bottom of the barrel space close to one end of the tube box is provided with a barrel inlet, and the top of the barrel space close to one end of the shell side is provided with a barrel outlet.
Further, the cylinder space is made of low alloy steel Q345R.
Furthermore, the main body material of the tube plate is forged piece 16Mn II grade.
Further, the tube box is connected with the tube plate through bolts.
Further, the tube plate is connected with the tube side through a bolt.
Further, the tube side and the shell side are welded and connected.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model relates to a BIU shell and tube heat exchanger, a baffle divides a tube box into an upper space and a lower space which are completely independent, the upper space and the lower space are respectively the upper part and the lower part, and a tube plate is in a net shape; the low temperature natural gas gets into the tube bank in the tube side from import entering tube case lower part, through the tube bank of panel filtration back entering tube, baffling board on the tube bank dams the tube bank for the tube bank spirals in the tube space more, and the baffling board carries out the current-limiting to the lumen of tube bank simultaneously, makes the tube bank diminish at some point lumen internal diameter, and the natural velocity of flow of restriction low temperature also plays the effect of supporting to the tube bank. The heat conducting oil is pumped into the space of the cylinder from the inlet of the cylinder, the heat conducting oil changes heat to the low-temperature natural gas in the tube bundle, so that the temperature of the low-temperature natural gas is increased to be the normal-temperature natural gas, then the normal-temperature natural gas is led out from the outlet of the cylinder, and the heat conducting oil is led out from the outlet of the cylinder when the heat conducting oil is replaced. The low-temperature natural gas from the liquefied cold box is reheated and then returns to the compressor for pressurization and then is used.
The multi-part low-temperature natural gas can be reheated once, the working efficiency is improved, the reheated natural gas enters the compressor to be used after being pressurized, and the waste of heat is avoided.
Drawings
In order to more clearly explain the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without making any inventive changes.
Fig. 1 is a transverse overall structure diagram of the present invention.
Fig. 2 is a top view of the present invention.
In the figure: 1-compression cavity, 2-base, 3-waste gas collection cavity, 4-air inlet pipe, 5-inner core, 6-air blocking leather valve, 7-anti-peeling valve, 8-detachable filter screen, 9-air inlet, 10-fixing plate, 11-telescopic rod, 12-piston, 13-air outlet, 14-air guide hose, 15-air guide hose collection cavity, 16-universal wheel and 17-traction frame.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the utility model provides a BIU shell and tube heat exchanger, including heat exchanger body 1, heat exchanger body 1 includes: channel case 2, be provided with baffle 3 in the channel case 2, be provided with the import 4 that is located channel case 2 bottom and the export 5 that is located channel case 2 top on the channel case 2, channel case 2 is connected with tube sheet 6, baffle 3 is connected with tube sheet 6, tube sheet 6 is connected with tube side 7, tube side 7 is connected with shell side 8, tube sheet 6, tube side 7 forms a confined tube space 9 with shell side 8, install a plurality of U type tube banks 10 in the tube space 9, tube banks 10 fixed welding is on tube sheet 6, install a plurality of baffling boards 11 on the tube bank 10, the bottom that tube space 9 is close to channel case 2 one end is provided with barrel import 12, the top that tube space 9 is close to shell side 8 one end is provided with barrel export 13.
Specifically, the cylinder space 9 is made of low alloy steel Q345R.
Specifically, the main body material of the tube plate 6 is forged 16Mn II grade.
Specifically, the tube box 2 and the tube plate 6 are connected by bolts.
Specifically, the tube plate 6 is connected with the tube pass 7 through a bolt.
Specifically, the tube side 7 is welded to the shell side 8.
The utility model discloses the theory of operation: the tube box 2 is divided into an upper space and a lower space which are completely independent by the partition plate 3, the upper space and the lower space are respectively the upper part and the lower part, and the tube plate 6 is in a net shape; the low-temperature natural gas enters the lower portion of the tube box 2 from the inlet 4, enters the tube bundle 10 in the tube pass 7 after being filtered by the tube plate 6, and the baffle plate 11 on the tube bundle 10 intercepts the tube bundle 10, so that the tube bundle 10 is more in spiral in the tube space 9, and meanwhile, the baffle plate 11 limits the flow of the tube cavity of the tube bundle 10, so that the inner diameter of the tube cavity of the tube bundle 10 at a certain point is reduced, the low-temperature natural flow rate is limited, and the tube bundle 10 is supported. The heat conducting oil is pumped into the cylinder space 9 from the cylinder inlet 12, the heat conducting oil changes heat to the low-temperature natural gas in the tube bundle 10, so that the temperature of the low-temperature natural gas is increased to be the normal-temperature natural gas, then the normal-temperature natural gas is led out from the cylinder outlet 13, and the heat conducting oil is led out from the cylinder outlet 13 when the heat conducting oil is replaced. The low-temperature natural gas from the liquefied cold box is reheated and then returns to the compressor for pressurization and then is used.
And a sewage discharge port pipe is arranged at the bottom of the shell pass 8, so that sewage discharge is facilitated.
And heat conducting oil, wherein the working temperature is 180-150 ℃, the working temperature is-80-20 ℃ for low-temperature natural gas, and the pipe box 2, the pipe plate 6 and the shell are connected by bolts to generate sealing pretightening force to prevent internal media from leaking.
The equipment material should accord with GB/T150.2-2011 2 nd part of pressure vessel: according to the stipulations of materials, the heat exchange tube is made of a stainless steel alloy material S30408; the pipe shell is made of low alloy steel material Q345R; the main body of the tube plate 6 is made of forged piece 16Mn II grade.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The above-described embodiments of the present application do not limit the scope of the present application.
Claims (6)
1. A BIU shell and tube heat exchanger, includes the heat exchanger body, its characterized in that, the heat exchanger body includes: the tube box is internally provided with a partition plate, the tube box is provided with an inlet positioned at the bottom of the tube box and an outlet positioned at the top of the tube box, the tube box is connected with a tube plate, the partition plate is connected with the tube plate, the tube plate is connected with a tube side, the tube side and the shell side form a closed barrel space, a plurality of U-shaped tube bundles are installed in the barrel space, the tube bundles are fixedly welded on the tube plate, a plurality of baffle plates are installed on the tube bundles, the bottom of the barrel space close to one end of the tube box is provided with a barrel inlet, and the top of the barrel space close to one end of the shell side is provided with a barrel outlet.
2. The BIU shell and tube heat exchanger of claim 1, wherein the barrel space is made of low alloy steel Q345R.
3. The BIU shell and tube heat exchanger of claim 1, wherein the tube sheet body is a forged 16Mn II grade.
4. The BIU shell and tube heat exchanger of claim 1, wherein the tube box is bolted to the tube sheet.
5. The BIU shell and tube heat exchanger of claim 1, wherein the tube sheet and the tube pass are bolted together.
6. The BIU shell and tube heat exchanger of claim 1, wherein the tube side is welded to the shell side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120737239.2U CN215063922U (en) | 2021-04-12 | 2021-04-12 | BIU shell and tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120737239.2U CN215063922U (en) | 2021-04-12 | 2021-04-12 | BIU shell and tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215063922U true CN215063922U (en) | 2021-12-07 |
Family
ID=79148935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120737239.2U Active CN215063922U (en) | 2021-04-12 | 2021-04-12 | BIU shell and tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215063922U (en) |
-
2021
- 2021-04-12 CN CN202120737239.2U patent/CN215063922U/en active Active
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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: A BIU type shell and tube heat exchanger Effective date of registration: 20240103 Granted publication date: 20211207 Pledgee: Ningxia East Guarantee Co.,Ltd. Pledgor: Ningxia XINKEYUAN energy utilization Co.,Ltd. Registration number: Y2023640000050 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |