CN212362921U

CN212362921U - Internal leakage prevention tubular heat exchanger

Info

Publication number: CN212362921U
Application number: CN202020856624.4U
Authority: CN
Inventors: 欧高明; 黄永福; 刘艳; 刘晶
Original assignee: Hunan Zhongda Mechanical And Electrical Co ltd
Current assignee: Hunan Zhongda Mechanical And Electrical Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-01-15
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a prevent interior tubular heat exchanger who leaks, including the pipe case, the inside first screw thread portion that is equipped with of one end of pipe case, the one end of casing is equipped with second screw thread portion, the inside fixedly connected with round trip baffle of pipe case, the internally mounted of casing has the baffling board, install the heat exchanger tube bank in baffling board and the fixed tube sheet, first fluid entry and first fluid export have been seted up to the top and the bottom of casing, second fluid entry and second fluid export have been seted up to the top and the bottom of pipe case. The utility model provides high leakproofness between each subassembly reduces the possibility of revealing.

Description

Internal leakage prevention tubular heat exchanger

Technical Field

The utility model relates to a heat exchanger technical field specifically is a prevent tubular heat exchanger of interior hourglass.

Background

The tubular (also called shell-and-tube, shell-and-tube) heat exchanger is the most typical dividing wall type heat exchanger, and has a long history of industrial application and still dominates all heat exchangers so far. The tubular heat exchanger mainly comprises a shell, a tube bundle, a tube plate, an end enclosure and the like, wherein the shell is mostly circular, the interior of the shell is provided with the parallel tube bundle, and two ends of the tube bundle are fixed on the tube plate.

Tubular heat exchanger among the prior art adopts the cooperation of flange and screw mostly, with the mode that pipe case, casing and floating head link together, takes place the inflation easily after the screw is heated, and easy lax after the cooling causes the junction to leak. Therefore, the tubular heat exchanger capable of preventing internal leakage is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent tubular heat exchanger of interior hourglass sets up second screw thread portion through the one end of seting up first screw thread portion, casing in the one end of pipe case, and the mode through threaded connection links together pipe case, casing and floating head, has improved the leakproofness between each subassembly to propose the problem that causes the junction to leak in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a prevent tubular heat exchanger of internal leakage, includes pipe case, fixed tube sheet, casing, floats head, heat exchange tube bank, baffling board, first fluid entry, first fluid export, second fluid entry and second fluid export, the inside first screw thread portion that is equipped with of one end of pipe case, the inside of pipe case is threaded connection respectively through first screw thread portion has fixed tube sheet and casing, the one end of casing is equipped with second screw thread portion, the one end of casing has the head of floating through second screw thread portion threaded connection, the inside fixedly connected with branch journey baffle of pipe case, the internally mounted of casing has the baffling board, and is two sets of install the heat exchange tube bank in the fixed tube sheet, first fluid entry and first fluid export have been seted up to the top and the bottom of casing, second fluid entry and second fluid export have been seted up to the top and the bottom of pipe case.

Preferably, handles are mounted on the shell and the floating head.

Preferably, the baffle is provided in a semicircular configuration.

Preferably, one side of the fixed tube plate is provided with an annular limiting groove matched with the shell.

Preferably, one side of the fixed tube plate is fixedly connected with a convex block.

Preferably, a graphite sealing ring is installed on one side of the pass partition plate.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses changed in the past through the cooperation of flange and screw, with pipe case, casing and the mode that floats the head and link together, but set up second screw thread portion through the one end of seting up first screw thread portion, casing in the one end of pipe case, the mode through threaded connection links together pipe case, casing and superficial head, has improved the leakproofness between each subassembly, reduces the possibility of revealing.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the area A in FIG. 1;

fig. 3 is a schematic view of the structure of the present invention.

In the figure: the heat exchange tube comprises a tube box 1, a first threaded part 2, a fixed tube plate 3, a shell 4, a second threaded part 5, a floating head 6, a split partition plate 7, a heat exchange tube bundle 8, a baffle plate 9, a graphite sealing ring 10, an annular limiting groove 11, a convex block 12, a handle 13, a first fluid inlet 14, a first fluid outlet 15, a second fluid inlet 16 and a second fluid outlet 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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 work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a pipe heat exchanger capable of preventing internal leakage comprises a pipe box 1, fixed pipe plates 3, a shell 4, floating heads 6, heat exchange pipe bundles 8, a baffle plate 9, a first fluid inlet 14, a first fluid outlet 15, a second fluid inlet 16 and a second fluid outlet 17, wherein a first thread part 2 is arranged inside one end of the pipe box 1, the fixed pipe plates 3 and the shell 4 are respectively in threaded connection inside the pipe box 1 through the first thread part 2, a second thread part 5 is arranged at one end of the shell 4, the floating heads 6 are in threaded connection with one end of the shell 4 through the second thread part 5, a split partition plate 7 is fixedly connected inside the pipe box 1, the baffle plate 9 is arranged inside the shell 4, the heat exchange pipe bundles 8 are arranged in two groups of the fixed pipe plates 3, one group of the fixed pipe plates 3 is in threaded connection inside the pipe box 1, the other group of the fixed pipe plates 3 is in threaded connection inside the floating heads, the housing 4 is opened at the top and bottom thereof with a first fluid inlet 14 and a first fluid outlet 15, and the header 1 is opened at the top and bottom thereof with a second fluid inlet 16 and a second fluid outlet 17.

Specifically, the shell 4 and the floating head 6 are both provided with handles 13. The handle 13 facilitates assembly by rotation of the housing 4 and the floating head 6.

Specifically, the baffle plate 9 is arranged in a semicircular structure. The baffle plate 9 can not only prevent short circuit of fluid and increase fluid speed, but also force fluid to cross flow through the tube bundle for many times according to a specified path, so that the turbulence degree is greatly increased.

Specifically, one side of the fixed tube plate 3 is provided with an annular limiting groove 11 matched with the shell 4. The annular limiting groove 11 facilitates the fixing of the butt joint between the tube plate 3 and the shell 4.

Specifically, one side of the fixed tube plate 3 is fixedly connected with a convex block 12. The protruding block 12 facilitates the rotation of the fixed tube plate 3 for disassembly and assembly.

Specifically, a graphite sealing ring 10 is installed on one side of the pass partition plate 7. The graphite sealing ring 10 is beneficial to improving the sealing performance between the stroke partition plate 7 and the fixed tube plate 3.

The working principle is as follows: during the use, earlier with the fixed tube sheet 3 threaded connection of heat exchanger tube bundle 8 in the inside of channel case 1, then with casing 4 threaded connection in channel case 1, again with floating head 6 threaded connection in the outside of fixed tube sheet 3 and casing 4, improved the leakproofness between each subassembly, reduce the possibility of revealing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevent tubular heat exchanger of internal leakage, includes tube case (1), fixed tube sheet (3), casing (4), floating head (6), heat exchange tube bank (8), baffling board (9), first fluid entry (14), first fluid export (15), second fluid entry (16) and second fluid export (17), its characterized in that: the improved heat exchanger tube bundle comprises a tube box (1), and is characterized in that a first thread part (2) is arranged inside one end of the tube box (1), a fixed tube plate (3) and a shell (4) are respectively in threaded connection inside the tube box (1) through the first thread part (2), a second thread part (5) is arranged at one end of the shell (4), a floating head (6) is in threaded connection with one end of the shell (4) through the second thread part (5), a split partition plate (7) is fixedly connected inside the tube box (1), a baffle plate (9) is arranged inside the shell (4), two heat exchange tube bundles (8) are arranged in the fixed tube plate (3), a first fluid inlet (14) and a first fluid outlet (15) are formed in the top and the bottom of the shell (4), and a second fluid inlet (16) and a second fluid outlet (17) are formed in the top and the bottom of the.

2. The leak-in prevention tube heat exchanger as set forth in claim 1, wherein: handles (13) are mounted on the shell (4) and the floating head (6).

3. The leak-in prevention tube heat exchanger as set forth in claim 1, wherein: the baffle plate (9) is arranged into a semicircular structure.

4. The leak-in prevention tube heat exchanger as set forth in claim 1, wherein: and one side of the fixed tube plate (3) is provided with an annular limiting groove (11) matched with the shell (4).

5. The leak-in prevention tube heat exchanger as set forth in claim 1, wherein: one side of the fixed tube plate (3) is fixedly connected with a convex block (12).

6. The leak-in prevention tube heat exchanger as set forth in claim 1, wherein: and a graphite sealing ring (10) is arranged on one side of the pass partition plate (7).