CN217275711U

CN217275711U - Winding type heat exchanger with full-drainage structure on tube shell side

Info

Publication number: CN217275711U
Application number: CN202123169304.5U
Authority: CN
Inventors: 邓学俊
Original assignee: Chongqing Nengxing Fluid Equipment Co ltd
Current assignee: Chongqing Nengxing Fluid Equipment Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-08-23
Anticipated expiration: 2031-12-16

Abstract

The utility model discloses a wound heat exchanger with a full-exhaust-clean structure of a tube shell side, which comprises a shell side shell ring, wherein both ends of the shell side shell ring are welded with elliptical heads, one side of the elliptical heads is connected with a first tube side connecting pipe, one end of the first tube side connecting pipe is welded with a first flange, both sides of the bottom end of the shell side shell ring are connected with a second tube side connecting pipe, one end of the second tube side connecting pipe is welded with a second flange, both ends of the inner side of the shell side shell ring are connected with tube plates, the top end of the inner side of the second tube side connecting pipe is connected with the bottom end of the tube plate, one side of the tube plates is connected with a plurality of tube bundles, the wound heat exchanger with the full-exhaust-clean structure of the tube shell side has simple and reasonable structure, novel design, simple and convenient operation, can effectively exhaust materials in the shell side shell ring completely, avoid the aggregation of corrosive media, and avoid the cleaning solution containing acid remaining in the shell side shell ring to cause the corrosion of the tube bundles, thereby greatly prolonging the service life of the wound heat exchanger and having higher practical value.

Description

Winding type heat exchanger with full-drainage structure on tube shell side

Technical Field

The utility model relates to a wound heat exchanger technical field specifically is a shell of tube side full-discharge structure wound heat exchanger.

Background

The heat exchanger which is most widely used in the industries of fine chemical engineering, food, beverage, medicine and the like is the traditional tube type heat exchanger and has the defects of large volume, more materials, large occupied area, inconvenient installation, low heat exchange efficiency and the like. In recent years, the heat exchanger is gradually replaced by a wound tube type heat exchanger in the fields, the material is saved, the weight is light, the size is small, the occupied area is small, the installation is convenient, and the heat exchange efficiency is 5-7 times that of a tube type heat exchanger. However, in practical production and application, some disadvantages exist, such as that the shell-side medium cannot be completely discharged at the outlet, and acid-containing cleaning liquid is easily caused to remain in the shell side in the cleaning process, so that the tube bundle of the heat exchanger is corroded, and the service life of the heat exchanger is shortened. Therefore, we improve the above and provide a wound heat exchanger with a full-displacement structure on the shell side.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a full clean out structure wound heat exchanger of shell side, including the shell side shell ring, the both ends of shell side shell ring have all been welded oval head, one side of oval head is connected with first tube side and takes over, the one end welding of first tube side takeover has first flange, the bottom both sides of shell side shell ring all are connected with the second tube side and take over, the one end welding of second tube side takeover has the second flange, the inboard both ends of shell side shell ring all are connected with the tube sheet, the inboard top of second tube side takeover and the bottom of tube sheet are connected, one side of tube sheet is connected with a plurality of tube banks, the inside of shell side shell ring is equipped with the center tube, the inside of tube bank is equipped with a plurality of screwed pipes, the screwed pipe is positive and negative winding in the outside of center tube.

As the utility model discloses a preferred technical scheme, the screwed pipe spiral opposite direction between the adjacent layer of tube bank, the screwed pipe is stainless steel material.

As an optimal technical scheme of the utility model, first opening has been seted up to one side of oval head, the outside welding of first open-ended inboard and first pipe side takeover.

As an optimal technical scheme of the utility model, the second opening has all been seted up to the bottom both sides of shell side shell ring section, the outside welding that second open-ended inboard and second tube side were taken over.

As an optimal technical scheme of the utility model, the clearance is 3 ~ 5mm between the tube bank.

As an optimized technical proposal of the utility model, the shell side shell ring is a cylinder made of stainless steel coils.

The beneficial effects of the utility model are that:

1. according to the wound heat exchanger with the full-displacement structure on the shell side, the spiral directions of the threaded pipes between the adjacent layers of the pipe bundles are opposite, so that a medium flows spirally along the pipe bundles and is in a turbulent flow state, the heat exchange efficiency is increased, the shell side cylindrical section is a cylindrical shape made of stainless steel coils, the corrosion resistance of a product is effectively increased, and the service life of the product is prolonged;

2. according to the wound heat exchanger with the shell-and-tube full-exhaust structure, the top end of the inner side of the second tube pass connecting tube is connected with the bottom end of the tube plate, so that the inner wall of the second tube pass connecting tube and the inner surface of the tube plate are kept on the same horizontal plane, acid-containing cleaning liquid can be exhausted completely when shell-and-tube sections are cleaned, and materials can be cleaned completely when other cold media are replaced, so that the service life of the heat exchanger is greatly prolonged; the utility model has the advantages of simple and reasonable structure, the modern design, easy operation is convenient, can effectively be with the material emission clean in the shell side shell ring, avoids corroding the gathering of medium, and avoids the washing liquid that contains acid to remain in the shell side shell ring in the cleaning process, arouses the corruption of heat exchanger tube bank to the life of wound heat exchanger has been prolonged greatly, has higher practical value.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a perspective view of a wound heat exchanger with a full-displacement structure of a shell side of a pipe of the present invention;

fig. 2 is a perspective view of the wound heat exchanger with a full-displacement structure of the shell side of the tube of the present invention;

fig. 3 is a perspective view of the wound heat exchanger with a full-displacement structure of the shell side of the tube of the present invention;

fig. 4 is a perspective view of the wound heat exchanger with a full-exhaust structure of the tube shell pass of the present invention.

In the figure: 1. a shell side shell ring; 2. an elliptical end enclosure; 3. a first tube pass connection tube; 4. a first flange; 5. a second tube pass connection tube; 6. a second flange; 7. a tube sheet; 8. a central tube; 9. a tube bundle; 901. a threaded pipe.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-4, the utility model relates to a full clean out structure wound heat exchanger of shell side, including shell side shell ring 1, oval head 2 has all been welded at shell side shell ring 1's both ends, one side of oval head 2 is connected with first tube side and takes over 3, the one end welding of first tube side takeover 3 has first flange 4, shell side shell ring 1's bottom both sides all are connected with second tube side and take over 5, the one end welding of second tube side takeover 5 has second flange 6, shell side shell ring 1's inboard both ends all are connected with tube sheet 7, the inboard top of second tube side takeover 5 and the bottom of tube sheet 7 are connected, one side of tube sheet 7 is connected with a plurality of tube banks 9, shell side shell ring 1's inside is equipped with center tube 8, the inside of tube bank 9 is equipped with a plurality of screwed pipes 901, screwed pipe 901 positive and negative winding is in the outside of center tube 8.

The spiral directions of the threaded pipes 901 between adjacent layers of the pipe bundle 9 are opposite, the threaded pipes 901 are made of stainless steel, and the spiral directions of the threaded pipes 901 between adjacent layers of the pipe bundle 9 are opposite, so that a medium flows spirally along the pipe bundle 9 and is in a turbulent flow state, and the heat exchange efficiency is improved.

Wherein, first opening has been seted up to one side of oval head 2, and the inboard of first opening and the outside welding of first tube side takeover 3, through the inboard of first opening and the outside welding of first tube side takeover 3, realize the hot medium business turn over.

Wherein, the second opening has all been seted up to the bottom both sides of shell side shell ring 1, and the inboard of second opening and the outside welding of second tube side takeover 5 realize the refrigerant business turn over through the inboard of second opening and the outside welding of second tube side takeover 5.

Wherein, the clearance is 3 ~ 5mm between the tube bank 9, and the clearance is 3 ~ 5mm between 9 through the tube bank, makes things convenient for the medium to flow.

Wherein, shell side shell ring 1 is the tube-shape that the stainless steel coil made, through the tube-shape that shell side shell ring 1 was the stainless steel coil made, has effectively increased the anticorrosive nature of product, improves product life.

The working principle is as follows: when the device is used, firstly, whether the connection part of the device is fastened is detected, after the device is ensured to be intact, a product is placed at a designated position, the first flange 4 is connected with a hot medium pipe, the second flange 6 is connected with a cold medium pipe, the two sides of the bottom end of the shell side cylindrical section 1 are both connected with second pipe side connecting pipes 5, so that the inner wall of each second pipe side connecting pipe 5 and the inner surface of a pipe plate 7 are kept on the same horizontal plane, acid-containing cleaning liquid can be completely discharged when the shell side cylindrical section is cleaned, and materials can be completely cleaned when other cold media are replaced, thereby greatly prolonging the service life of the heat exchanger. Causing corrosion of the heat exchanger tube bundle and having higher practical value.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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 modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The wound heat exchanger with the full-clean-out structure on the shell side comprises a shell side shell ring (1) and is characterized in that elliptical seal heads (2) are welded at two ends of the shell side shell ring (1), a first tube side connecting pipe (3) is connected to one side of each elliptical seal head (2), a first flange (4) is welded at one end of each first tube side connecting pipe (3), a second tube side connecting pipe (5) is connected to two sides of the bottom end of the shell side shell ring (1), a second flange (6) is welded at one end of each second tube side connecting pipe (5), tube plates (7) are connected to two ends of the inner side of the shell side shell ring (1), the top end of the inner side of each second tube side connecting pipe (5) is connected with the bottom end of each tube plate (7), a plurality of tube bundles (9) are connected to one side of each tube plate (7), a central tube (8) is arranged inside the shell side shell ring (1), and a plurality of threaded tubes (901) are arranged inside the tube bundles (9), the threaded pipe (901) is wound on the outer side of the central pipe (8) in the positive and negative directions.

2. The wound heat exchanger with the tube-shell-side full-discharge structure as claimed in claim 1, wherein the spiral directions of the threaded tubes (901) between adjacent layers of the tube bundle (9) are opposite, and the threaded tubes (901) are made of stainless steel.

3. The wound heat exchanger with the full-exhaust-structure shell-side structure according to claim 1, wherein a first opening is formed in one side of the elliptical head (2), and the inner side of the first opening is welded to the outer side of the first tube-side connecting tube (3).

4. The wound heat exchanger with the tube-shell-side full-exhaust structure according to claim 1, wherein second openings are formed in two sides of the bottom end of the shell-side shell ring (1), and the inner sides of the second openings are welded to the outer sides of the second tube-side connecting tubes (5).

5. The wound heat exchanger with the tube shell side full-exhaust structure according to claim 1, wherein the gap between the tube bundles (9) is 3-5 mm.

6. The wound heat exchanger with the tube shell side full-discharge structure as claimed in claim 1, wherein the shell side shell ring (1) is a cylinder made of stainless steel coils.