CN110749227A

CN110749227A - Novel impingement plate of heat exchanger

Info

Publication number: CN110749227A
Application number: CN201911226036.0A
Authority: CN
Inventors: 王建江; 谢金山; 陈伟锋; 谭雅丹
Original assignee: YONGSHENG MACHINERY INDUSTRY (KUNSHAN) Co Ltd
Current assignee: YONGSHENG MACHINERY INDUSTRY (KUNSHAN) Co Ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-02-04

Abstract

The invention discloses a novel impingement plate of a heat exchanger, which comprises a tube plate, wherein a shell pass cylinder is arranged at the lower end of the tube plate, heat exchange tubes are symmetrically arranged at two sides of the inner side of the shell pass cylinder, impingement baffle rods are symmetrically arranged at one side, away from the shell pass cylinder, of the symmetrically arranged heat exchange tubes, the lower end of the tube plate is provided with an impingement rod between the two symmetrically arranged impingement baffle rods, the lower end of the impingement rod is provided with an impingement plate, the lower end of the impingement plate is provided with a baffle plate, and one side of the shell pass cylinder is also provided with. The invention has the beneficial effects that: after the anti-impact device is used for the heat exchanger, fluid is uniformly distributed, the anti-impact plate can be effectively prevented from falling off, the damage and leakage of the heat exchange tube are reduced, the safe and reliable operation of the heat exchanger is ensured, and the service life of the heat exchanger is prolonged; simple structure, reasonable in design, need not to weld anti-shock mounting separately, the scour protection is effectual, and equipment cost is low.

Description

Novel impingement plate of heat exchanger

Technical Field

The invention relates to the technical field of heat exchangers, in particular to a novel impingement plate of a heat exchanger.

Background

Heat exchangers are devices for exchanging heat of a medium, and are widely used in chemical, petroleum, oil refining and many other industrial sectors.

For the heat exchanger, the heat exchange tube, the tube plate, the equipment flange, the seal head, the shell, the expansion joint and the like are main pressure elements, and other elements such as an anti-impact device are auxiliary elements. In design, manufacturing process, easy neglecting to make the heat exchanger can not realize safe and reliable operation, shell and tube heat exchanger's scour protection problem has been of a specified duration, sets up reasonable effectual scour protection structure, can prolong the life of heat exchanger.

Among the prior art, there are multirow heat exchange tubes in shell and tube heat exchanger's the shell, the impingement baffle that the import department set up on the shell, the pattern is seen in (four), and the impingement baffle welds on the shell, and its main defect has: the area of the impingement baffle is small; when the shell pass fluid enters, the direction of the shell pass fluid is vertical to the anti-impact plate, and the anti-impact plate is easy to fall off due to long-term high-speed movement of the fluid, so that the anti-impact plate loses the anti-impact function; on the other hand, after establishing the impingement baffle with adding, the fluid can be concentrated and get into the tube bank district at the impingement baffle both ends, and the fluid distributes inhomogeneously, still can cause the impact to destroy to the heat exchange tube, and the pressure drop grow because the vibration of heat exchange tube, must lead to the striking in heat exchange tube and baffle hole and cut off.

Disclosure of Invention

The object of the present invention is to provide a new impingement plate for a heat exchanger, which solves the above mentioned problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a novel heat exchanger impingement baffle, includes the tube sheet, the tube sheet lower extreme is equipped with the shell side barrel, the inboard both sides symmetry of shell side barrel is equipped with the heat exchange tube, and the symmetry sets up the heat exchange tube is kept away from a side symmetry of shell side barrel is equipped with scour protection shelves pole, the tube sheet lower extreme sets up at two symmetries be equipped with the scour protection pole between the scour protection shelves pole, scour protection pole lower extreme is equipped with the impingement baffle, the impingement baffle lower extreme is equipped with the baffling board, shell side barrel one side still is equipped with the medium import.

Preferably, the shell pass cylinder is coated on the outer side of the lower end of the tube plate in a rectangular mode, and the tube plate is circular.

Preferably, a plurality of rows of heat exchange tubes are arranged in the shell pass cylinder, and the heat exchange tubes are perpendicular to the tube plate and the baffle plate.

Preferably, the impingement plate and the impingement rod are welded and combined to be installed between the tube plate and the baffle plate.

Preferably, the impingement plate faces the medium inlet, and medium circulation gaps are formed between the two sides of the impingement plate and the impact prevention rod.

Preferably, the upper end of the impact prevention rod is connected with the lower end of the tube plate, and the lower end of the impact prevention rod is connected with the baffle plate.

Preferably, the upper end of the anti-impact rod is connected with the lower end of the tube plate, and the lower end of the anti-impact rod is connected with the baffle plate.

Advantageous effects

After the anti-impact device is used for the heat exchanger, fluid is uniformly distributed, the anti-impact plate can be effectively prevented from falling off, the damage and leakage of the heat exchange tube are reduced, the safe and reliable operation of the heat exchanger is ensured, and the service life of the heat exchanger is prolonged; simple structure, reasonable in design, need not to weld anti-shock mounting separately, the scour protection is effectual, and equipment cost is low.

Drawings

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic top view of the prior art.

Reference numerals

The heat exchange tube comprises a tube plate 1, a shell pass cylinder 2, a baffle rod 3, a heat exchange tube 4, a baffle plate 5, an impact prevention plate 6, an impact prevention rod 7 and a medium inlet 8.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Examples

As shown in fig. 1-3, a novel impingement plate of a heat exchanger comprises a tube plate 1, wherein a shell pass cylinder 2 is arranged at the lower end of the tube plate 1, heat exchange tubes 4 are symmetrically arranged on two sides of the inner side of the shell pass cylinder 2, impingement rods 3 are symmetrically arranged on one side, away from the shell pass cylinder 2, of the heat exchange tubes 4 which are symmetrically arranged, an impingement rod 7 is arranged between the impingement rods 3 which are symmetrically arranged at the lower end of the tube plate 1, an impingement plate 6 is arranged at the lower end of the impingement rod 7, a baffle plate 5 is arranged at the lower end of the impingement plate 6, and a medium inlet 8 is further arranged at one side.

Preferably, the shell pass cylinder 2 is coated on the outer side of the lower end of the tube plate 1 in a rectangular mode, and the tube plate 1 is circular.

Preferably, a plurality of rows of heat exchange tubes 4 are arranged in the shell-side cylinder 2, and the heat exchange tubes 4 are vertical to the tube plate 1 and the baffle plates 5.

Preferably, the impingement plate 6 and the impingement rod 7 are installed between the tube plate 1 and the baffle plate 5 in a welding combination.

Preferably, the impingement plate 6 faces the medium inlet 8, and a medium circulation gap is formed between the two sides of the impingement plate 6 and the impingement rod 7.

Preferably, the upper end of the impact prevention rod 7 is connected with the lower end of the tube plate 1, and the lower end of the impact prevention rod 7 is connected with the baffle plate 5.

Preferably, the upper end of the anti-impact rod 3 is connected with the lower end of the tube plate 1, and the lower end of the anti-impact rod 3 is connected with the baffle plate 5.

When the heat exchange pipe is used, fluid rushes to the heat exchange pipe through the medium inlet and enters through the circulation gap, and the path of the fluid is changed, so that the impact pressure on the heat exchange pipe is greatly reduced.

The device is installed at the shell side inlet of the heat exchanger, one end of the impingement plate is welded on the baffle plate, the other end of the impingement plate is welded with the impingement rod, and the impingement rod is connected with the tube plate.

The invention has simple structure and convenient installation, can effectively prevent the erosion and vibration of the heat exchange tube caused by the direct impact of the shell-side fluid on the heat exchange tube, and simultaneously avoids the generation of thermal stress due to the uneven heating of the tube so as to play a role in protecting the heat exchange tube.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the content of the present invention within the scope of the protection of the present invention.

Claims

1. A novel impingement plate of a heat exchanger comprises a tube plate (1), and is characterized in that: tube sheet (1) lower extreme is equipped with shell side barrel (2), shell side barrel (2) inboard bilateral symmetry is equipped with heat exchange tube (4), and the symmetry sets up heat exchange tube (4) are kept away from one side symmetry of shell side barrel (2) is equipped with scour protection shelves pole (3), tube sheet (1) lower extreme sets up at two symmetries be equipped with between scour protection shelves pole (3) and prevent impact bar (7), it is equipped with impingement baffle (6) to prevent impact bar (7) lower extreme, impingement baffle (6) lower extreme is equipped with baffling board (5), shell side barrel (2) one side still is equipped with medium import (8).

2. A novel heat exchanger impingement plate according to claim 1, wherein: the shell pass cylinder (2) is coated on the outer side of the lower end of the tube plate (1) in a rectangular mode, and the tube plate (1) is circular.

3. A novel heat exchanger impingement plate according to claim 1, wherein: the shell-side cylinder (2) is internally provided with a plurality of rows of heat exchange tubes (4), and the heat exchange tubes (4) are vertical to the tube plate (1) and the baffle plate (5).

4. A novel heat exchanger impingement plate according to claim 1, wherein: the impingement baffle (6) and the impingement rod (7) are welded and combined to be installed between the tube plate (1) and the baffle plate (5).

5. A novel heat exchanger impingement plate according to claim 1, wherein: the impingement plate (6) is over against the medium inlet (8), and medium circulation gaps are formed between the two sides of the impingement plate (6) and the impact prevention rods (7).

6. A novel heat exchanger impingement plate according to claim 5, wherein: the upper end of the anti-impact rod (7) is connected with the lower end of the tube plate (1), and the lower end of the anti-impact rod (7) is connected with the baffle plate (5).

7. A novel heat exchanger impingement plate according to claim 1, wherein: the upper end of the anti-impact rod (3) is connected with the lower end of the tube plate (1), and the lower end of the anti-impact rod (3) is connected with the baffle plate (5).