CN214950706U

CN214950706U - U-shaped tube heat exchanger with long baffle

Info

Publication number: CN214950706U
Application number: CN202120092205.2U
Authority: CN
Inventors: 丁峰; 石淼; 郭庆; 孙波; 孙政伟
Original assignee: Wuxi Lima Chemical Machinery Co ltd
Current assignee: Wuxi Lima Chemical Machinery Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-11-30
Anticipated expiration: 2031-01-13

Abstract

The utility model relates to a take U-shaped pipe heat exchanger of long baffle, which comprises a housin, be equipped with the medium chamber in the casing, install cooling module in the medium chamber, medium chamber top is equipped with the gaseous phase import, the side is equipped with the export of noncondensable gas, the bottom is equipped with the condensate export, the casing comprises shell side barrel and tube side pipe case, set up the tube sheet in the shell side barrel, the tube sheet separates into medium chamber and cooling chamber with the casing inner chamber, the tube sheet, shell side barrel forms the medium chamber, the tube sheet, tube side pipe case forms the cooling chamber, shell side barrel top is equipped with the gaseous phase import, the side is equipped with the export of noncondensable gas, the bottom is equipped with the condensate export. The utility model has simple structure and small occupied space; the heat exchange efficiency of the gas phase materials in the U-shaped tube heat exchanger equipment is improved, the energy consumption is greatly reduced, and the requirements of energy conservation and emission reduction are met.

Description

U-shaped tube heat exchanger with long baffle

Technical Field

The utility model belongs to the chemical machinery equipment field relates to the U-shaped pipe heat exchanger of taking long baffle.

Background

The heat exchanger is an apparatus which plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can transfer partial heat of hot fluid to cold fluid, can transfer heat between two or more than two fluids at different temperatures, is used for transferring heat from the fluid with higher temperature to the fluid with lower temperature, and enables the temperature of the fluid to reach the index specified by the process so as to meet the requirement of process conditions, and is one of main apparatuses for improving the energy utilization rate. Ordinary U-shaped pipe heat exchanger can reduce the heat exchange tube and expand under high temperature and produce great thermal stress to tube sheet and baffling board, nevertheless to the operating mode that the shell side material is gaseous phase condensation, the shell side import is very easily short circuit to the condensate export, greatly reduced heat transfer effect, the utility model discloses to above problem, provided a improve the U-shaped pipe heat exchanger of structure, through reinforceing heat transfer performance, improved heat exchange efficiency, greatly reduced the energy consumption.

Disclosure of Invention

An object of the utility model is to provide a take U-shaped pipe heat exchanger of long baffle can solve the import of shell side and extremely easily short circuit to the condensate export, and greatly reduced heat transfer effect's problem has just improved the heat exchange efficiency of gaseous phase material in U-shaped pipe heat exchanger equipment, and greatly reduced has consumed the energy, agrees with energy saving and emission reduction's requirement.

According to the utility model provides a technical scheme: the U-shaped tube heat exchanger with the long baffle comprises a shell, wherein a medium cavity is formed in the shell, a cooling assembly is installed in the medium cavity, a gas phase inlet is formed in the upper portion of the medium cavity, a non-condensable gas outlet is formed in the side face of the medium cavity, and a condensate outlet is formed in the bottom of the medium cavity.

As a further improvement of the utility model, the casing comprises shell side barrel and tube side pipe case, set up the tube sheet in the shell side barrel, the tube sheet separates into medium chamber and cooling chamber with the casing inner chamber, tube sheet, shell side barrel form the medium chamber, tube sheet, tube side pipe case form the cooling chamber, shell side barrel top is equipped with gas phase import, the side is equipped with noncondensable gas export, the bottom is equipped with the condensate export.

As a further improvement of the utility model, the tube side tube box is provided with a cooling medium inlet and a cooling medium outlet.

As a further improvement of the present invention, the cooling assembly includes a U-shaped tube bundle, the U-shaped tube bundle is installed in a horizontal state in the shell pass cylinder, a tube bundle through hole is opened in the tube plate, the U-shaped tube bundle end portion is located in the tube bundle through hole, the U-shaped tube bundle input end and the output end are located in the cooling chamber, the U-shaped tube bundle cooling portion is located in the medium chamber.

As a further improvement of the utility model, the U-shaped tube bundle cooling part is externally provided with a baffle plate.

As a further improvement of the utility model, the baffle plate is arranged outside the cooling part of the U-shaped tube bundle through a distance structure; the distance structure comprises a distance core shaft and a distance sleeve, the baffle plate is arranged in the shell pass cylinder, the distance core shaft is arranged in the baffle plate, and the distance sleeve is sleeved on the periphery of the distance core shaft.

As a further improvement of the utility model, a long baffle is arranged in the medium cavity.

As a further improvement of the present invention, the long baffle is inclined, and the low end of the long baffle faces the bottom of the shell pass cylinder.

As a further improvement, the long baffle is high-end with set up the elasticity gasket between the shell side barrel inner wall, bolted connection is passed through to elasticity gasket one end the long baffle is high-end, the elasticity gasket other end with shell side barrel inner wall offsets.

As a further improvement of the utility model, the non-condensable gas outlet is arranged below the high end of the long baffle on the shell pass cylinder.

The positive progress effect of this application lies in:

the utility model has simple structure and small occupied space; the heat exchange efficiency of the gas phase materials in the U-shaped tube heat exchanger equipment is improved, the energy consumption is greatly reduced, and the requirements of energy conservation and emission reduction are met.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view a-a in fig. 1.

Fig. 3 is an enlarged schematic view of the region I in fig. 2.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover such processes, methods, systems, articles, or apparatus that comprise a list of steps or elements, are not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such processes, methods, articles, or apparatus.

In fig. 1-3, the device comprises a shell-side cylinder 1, a U-shaped tube bundle 2, a gas phase inlet 3, a non-condensable gas outlet 4, a tube plate 5, a tube-side tube box 6, a long baffle 7, a baffle plate 8, a condensate outlet 9, an elastic sealing sheet 10, a pull rod spacing tube 11 and the like.

As shown in figure 1, the utility model relates to a take U-shaped pipe heat exchanger of long baffle, including the casing, be equipped with the medium chamber in the casing, install cooling module in the medium chamber, the medium chamber top is equipped with gaseous phase import 3, and the side is equipped with noncondensable gas outlet 4, and the bottom is equipped with condensate outlet 9.

The shell comprises a shell pass cylinder body 1 and a tube plate 5, the shell pass cylinder body 1 is in a semi-closed hollow barrel shape, an opening is formed in one side of the shell pass cylinder body, the tube plate 5 is located at the opening of the shell pass cylinder body 1, and a tube pass tube box 6 is installed on the outer side of the opening. The tube plate 5 and the shell-side cylinder 1 form a medium cavity, and the tube plate 5 and the tube-side tube box 6 form a cooling cavity. A gas phase inlet 3 is arranged above the shell side cylinder 1, a non-condensable gas outlet 4 is arranged on the side surface, and a condensate outlet 9 is arranged at the bottom. The tube pass tube box 6 is provided with a cooling medium inlet and a cooling medium outlet.

The cooling assembly comprises a U-shaped tube bundle 2, the U-shaped tube bundle 2 is horizontally arranged in the shell side barrel 1, a tube bundle through hole is formed in the tube plate 5, the end part of the U-shaped tube bundle 2 is located in the tube bundle through hole, the input end and the output end of the U-shaped tube bundle 2 are located in the cooling cavity, and the cooling part of the U-shaped tube bundle 2 except the input end and the output end is located in the medium cavity.

In order to increase the cooling time of the material in the medium cavity, baffles 8 are arranged outside the cooling part of the U-shaped tube bundle 2 through a distance structure.

The distance structure includes distance dabber 11 and distance sleeve pipe, and baffling board 8 is vertical to be installed in shell side barrel 1, and is perpendicular mutually with U-shaped tube bundle 2, and it has distance through-hole and tube bank mounting hole to open on the baffling board 8, and the distance through-hole is used for passing through distance dabber 11, and the tube bank mounting hole is used for connecting U-shaped tube bundle 2, and the distance sleeve pipe cover is established in distance dabber 11 periphery, is used for separating baffling board 8.

In the embodiment, 6 baffle plates 8 are vertically arranged in the shell-side cylinder 1, and the end parts of the distance mandrels 11 sequentially penetrate through the baffle plates 8 and then are connected with the tube plate 5. 6 distance sleeves are axially sleeved on the periphery of the distance mandrel 11 in a segmented mode, the distance sleeve on the rightmost side is used for spacing the distance between the tube plate 5 and the baffle plate 8 on the rearmost side, and the other 5 distance sleeves are used for spacing the distance between the baffle plates 8 on the 6 sides.

In order to further prolong and increase the cooling time of the material in the medium cavity, a long baffle 7 is arranged in the medium cavity, as shown in fig. 2, a placing groove is formed in a baffle plate 8, the long baffle 7 is installed in the placing groove, the long baffle 7 is obliquely arranged, and the lower end of the long baffle 7 faces the bottom of the shell-side cylinder 1.

As shown in fig. 3, in order to move the material along a set path, an elastic sealing sheet 10 is arranged between the high end of the long baffle 7 and the inner wall of the shell-side cylinder 1, one end of the elastic sealing sheet 10 is connected with the high end of the long baffle 7 through a bolt, and the other end of the elastic sealing sheet 10 abuts against the inner wall of the shell-side cylinder 1.

The noncondensable gas outlet 4 is arranged on the shell pass cylinder 1 below the high end of the long baffle 7.

The working process of the utility model is as follows:

firstly welding a gas phase inlet 3, a non-condensable gas outlet 4, a condensate outlet 9 and a shell pass cylinder 1 into a whole, then connecting a U-shaped tube bundle 2 and a baffle plate 8 with a tube plate 5 into a whole through a distance structure, then inserting a long baffle 7 into a clamping groove of the baffle plate 8, welding the end part of the long baffle 7 with the tube plate 5, fixing an elastic sealing sheet 10 at the end part of the long baffle 7 close to the shell pass cylinder 1 by using a bolt, and then clamping the tube plate 5 between the shell pass cylinder 1 and a tube pass tube box 6 to finish the assembly of the equipment.

The cooling medium in the U-shaped tube bundle 2 is circulated through a cooling medium inlet and a cooling medium outlet on the tube side tube box 6. The material gets into from top gaseous phase import 3, through the heat exchange of the U-shaped tube bank 2 cooling part on long baffle 7 upper right portion, the condensate is discharged from the condensate export 9 of bottom, and noncondensable gas and partial gaseous phase material continue to carry out heat exchange along the heat transfer pipe area of long baffle 7 entering lower left portion, and noncondensable gas is discharged from the noncondensable gas export 4 of side, and the condensate is discharged from the condensate export 9 of bottom to realize the energy exchange of tube shell side material.

It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims

1. The U-shaped tube heat exchanger with the long baffle is characterized by comprising a shell, wherein a medium cavity is formed in the shell, a cooling assembly is installed in the medium cavity, a gas phase inlet (3) is formed in the upper portion of the medium cavity, a non-condensable gas outlet (4) is formed in the side face of the medium cavity, and a condensate outlet (9) is formed in the bottom of the medium cavity.

2. The U-tube heat exchanger with the long baffles according to claim 1, wherein the shell is composed of a shell-side tube body (1) and a tube-side tube box (6), a tube plate (5) is arranged in the shell-side tube body (1), the tube plate (5) divides an inner cavity of the shell into a medium cavity and a cooling cavity, the tube plate (5) and the shell-side tube body (1) form the medium cavity, the tube plate (5) and the tube-side tube box (6) form the cooling cavity, the gas-phase inlet (3) is arranged above the shell-side tube body (1), the non-condensable gas outlet (4) is arranged on the side, and the condensate outlet (9) is arranged on the bottom.

3. The hairpin tube heat exchanger with elongated baffles of claim 2 wherein the tube-side tube box (6) is provided with a cooling medium inlet and a cooling medium outlet.

4. The U-tube heat exchanger with long baffles according to claim 2, wherein the cooling assembly comprises a U-tube bundle (2), the U-tube bundle (2) is horizontally installed in the shell-side cylinder (1), the tube sheet (5) is provided with tube bundle through holes, the ends of the U-tube bundle (2) are located in the tube bundle through holes, the input ends and the output ends of the U-tube bundle (2) are located in the cooling chamber, and the cooling part of the U-tube bundle (2) is located in the medium chamber.

5. U-tube heat exchanger with long baffles according to claim 4, characterized in that baffles (8) are installed outside the cooling section of the U-tube bundle (2).

6. U-tube heat exchanger with elongated baffles according to claim 5, characterized in that said baffles (8) are mounted externally to the cooling portion of said U-tube bundle (2) by distance means; the distance structure comprises a distance core shaft (11) and a distance sleeve, the baffle plate (8) is installed in the shell-side barrel (1), the distance core shaft (11) is arranged in the baffle plate (8), and the distance sleeve is sleeved on the periphery of the distance core shaft (11).

7. U-tube heat exchanger with long baffles according to claim 6, wherein long baffles (7) are arranged in the media chamber.

8. The U-tube heat exchanger with long baffles according to claim 7, wherein the long baffles (7) are arranged obliquely, and the lower ends of the long baffles (7) face the bottom of the shell-side cylinder (1).

9. The U-tube heat exchanger with long baffles according to claim 8, wherein an elastic sealing sheet (10) is arranged between the high end of the long baffle (7) and the inner wall of the shell-side cylinder (1), one end of the elastic sealing sheet (10) is connected with the high end of the long baffle (7) through a bolt, and the other end of the elastic sealing sheet (10) is abutted against the inner wall of the shell-side cylinder (1).

10. The U-tube heat exchanger with long baffles according to claim 9, wherein the non-condensable gas outlets (4) are arranged on the shell-side cylinder (1) below the high ends of the long baffles (7).