CN211903850U

CN211903850U - High-temperature-difference fin heater structure

Info

Publication number: CN211903850U
Application number: CN202020453649.XU
Authority: CN
Inventors: 吴畏; 林凤岩; 伊晓丽; 薛亚南; 申燕
Original assignee: Shandong Chemsta Machinery Manufacturing Co ltd
Current assignee: Shandong Chemsta Machinery Manufacturing Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-11-10
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a high temperature difference fin heater structure, which comprises a frame, a tube bundle group, a half-tube cavity, an upper tube plate and a lower tube plate; the tube bundle groups are provided with a plurality of tube bundle groups which are arranged in the frame; the tube bundle group comprises a plurality of fin tube bundles, and two ends of the fin tube bundles are respectively welded with the upper tube plate and the lower tube plate; the half-tube cavity is arranged between the frame and the tube plate, and the upper tube plate is connected with the frame through a connecting plate in a welding manner; and the welding position of the connecting plate and the upper tube plate avoids the Y-shaped welding seam of the half tube cavity and the upper tube plate. The utility model discloses a be a plurality of with the tube bank component, can avoid the whole overlength of tube bank group and the too big rigidity influence that causes the tube sheet of quality, can avoid weld bath heat affected zone to the high temperature tempering influence of former half pipe cavity welding seam.

Description

High-temperature-difference fin heater structure

Technical Field

The utility model belongs to heater device field, specifically speaking are poor fin heater structure of high temperature.

Background

The heater is used for supplying hot air matched with equipment, and is used for solving the problems that outdoor air temperature of heat source equipment is low (below minus 40 ℃) and the instantaneous temperature rise is large (above 200 ℃), and heating media in the heater can be superheated steam, saturated steam, heat conduction oil and the like.

SUMMERY OF THE UTILITY MODEL

In order to overcome the condition that exists the welding seam and tear or cold fragile among the present technique, cause inside heat transfer medium to reveal, influence the problem of normal production, the utility model provides a rigidity influence and welding weld bath heat affected zone that avoid the whole overlength of tube bank group and quality to cause the tube sheet are to the high temperature tempering influence of former half tube cavity welding seam a poor fin heater structure of high temperature.

The utility model discloses a realize through following technical scheme.

A high temperature difference fin heater structure comprises a frame, a tube bundle group, a half tube cavity, an upper tube plate and a lower tube plate; the tube bundle groups are provided with a plurality of tube bundle groups which are arranged in the frame; the tube bundle group comprises a plurality of fin tube bundles, and two ends of the fin tube bundles are respectively welded with the upper tube plate and the lower tube plate; the half-tube cavity is arranged between the frame and the tube plate, and the upper tube plate is connected with the frame through a connecting plate in a welding manner; and the welding position of the connecting plate and the upper tube plate avoids the Y-shaped welding seam of the half tube cavity and the upper tube plate. The utility model discloses a divide into a plurality of with the tube bank group, can avoid the whole overlength of tube bank group and the too big rigidity influence that causes the tube sheet of quality, simultaneously this high temperature difference fin heater structure is in the state of bearing the hanging dress, and the finned tube bank is the nature flagging, and the atress is even; the welding position of the connecting plate and the upper tube plate avoids the Y-shaped welding seam of the half tube cavity and the upper tube plate, and the high-temperature tempering influence of a welding pool heat affected zone on the welding seam of the original half tube cavity can be avoided in the manufacturing process.

As a further improvement of the technical scheme, the high-temperature-difference fin heater structure further comprises a gas inlet half pipe, wherein the gas inlet half pipe is arranged on the frame through a pipe seat, and one end of the gas inlet half pipe penetrates through an opening in the frame to be connected with a half pipe cavity.

As the further improvement of the technical scheme, the pipe seat of the air inlet half pipe and the opening of the frame are provided with opening gaps, wherein the diameter of the opening gaps is 2-3mm, and then the welding seam tearing caused by the expansion and contraction of heat and the contraction of cold of the half pipe air inlet pipe and the pipe seat can be avoided.

As a further improvement of the technical scheme, four corners of the lower tube plate are provided with steel bar limiting plates, the steel bar limiting plates can avoid swinging of the tube bundle group in the transportation process, and the lower tube plate can stretch in the space of the steel bar limiting plates.

As a further improvement of the technical scheme, the steel bar limiting plate is cylindrical.

As a further improvement of the technical scheme, the frame is of a C-shaped forming structure.

According to the technical scheme, the utility model has the advantages of it is following: the utility model discloses a divide into a plurality of with the tube bank group, can avoid the whole overlength of tube bank group and the too big rigidity influence that causes the tube sheet of quality, simultaneously this high temperature difference fin heater structure is in the state of bearing the hanging dress, and the finned tube bank is the nature flagging, and the atress is even; the welding position of the connecting plate and the upper tube plate avoids the Y-shaped welding seam of the half tube cavity and the upper tube plate, and the high-temperature tempering influence of a welding pool heat affected zone on the welding seam of the original half tube cavity can be avoided in the manufacturing process.

This poor fin heater structure of high temperature adopts the hanging structure, bears the whole weight of the inner core of whole finned tube bank through the hanging of tube sheet, and under the great condition of temperature variation, finned tube bank's inner core can wholly extend downwards, can not cause because of the thermal energy of structure restriction welding seam tears, stable performance, and the structure is nimble, simple manufacture, and the manufacturing process does not need great material resources cost to drop into.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is an enlarged view of a portion of A in FIG. 1 according to the present invention;

FIG. 3 is a right sectional view of the present invention;

fig. 4 is a partially enlarged schematic view of B in fig. 3 according to the present invention.

In the drawings: 1. a frame; 2. a tube bundle group; 3. a half-pipe cavity; 4. a gas inlet half pipe; 5. an upper tube sheet; 6. a lower tube plate; 7. a connecting plate; 8. and a steel bar limiting plate.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.

As shown in fig. 1-4, a high temperature difference finned heater structure comprises a frame 1, a tube bundle group 2, a half tube cavity 3, an upper tube plate 5 and a lower tube plate 6; the tube bundle groups 2 are arranged in a plurality, and the tube bundle groups 2 are arranged in the frame 1; the tube bundle group 2 comprises a plurality of fin tube bundles, and two ends of the fin tube bundles are respectively welded with the upper tube plate 5 and the lower tube plate 6; the half-tube cavity 3 is arranged between the frame 1 and the tube plate 5, and the upper tube plate 5 is connected with the frame 1 through a connecting plate 7 in a welding manner; and the welding position of the connecting plate 7 and the upper tube plate 5 avoids the Y-shaped welding seam of the half tube cavity 3 and the upper tube plate 5. The utility model divides the tube bundle group 2 into a plurality of, preferably two units, which can avoid the rigid influence on the tube plate caused by overlong whole tube bundle group 2 and overlarge mass, and meanwhile, the fin tube bundle is naturally drooped and stressed evenly under the hanging state of the high temperature difference fin heater structure; the welding position of the connecting plate 7 and the upper tube plate 5 avoids the Y-shaped welding seam of the half tube cavity 3 and the upper tube plate 5, and the high-temperature tempering influence of a welding pool heat-affected zone on the welding seam of the original half tube cavity can be avoided in the manufacturing process.

The high-temperature-difference fin heater structure further comprises a gas inlet half pipe 4, wherein the gas inlet half pipe 4 is arranged on the frame 1 through a pipe seat, and one end of the gas inlet half pipe passes through a hole in the frame 1 and is connected with the half pipe cavity 3.

The tube seat of the air inlet half-tube 4 and the opening of the frame 1 are provided with opening gaps, wherein the diameter of the opening gaps is 2-3mm, and then the welding seam tearing caused by the expansion and contraction of heat of the air inlet half-tube 4 and the tube seat can be avoided.

Because of thermal expansion and cold contraction caused by too large temperature difference, if a fixed welding seam is torn, in order to provide effective space for the tube bundle group to expand with heat and contract with cold, four corners of the lower tube plate 6 are respectively provided with a steel bar limiting plate 8, on one hand, the steel bar limiting plates 8 can avoid the swing of the tube bundle group 2 in the transportation process, and on the other hand, the lower tube plate 6 can stretch in the space of the steel bar limiting plates 8, in the embodiment, the steel bar limiting plates 8 are cylindrical, obviously, the steel bar limiting plates 8 can also be in other shapes, such as a cuboid shape and a cube shape, in order to realize the functions; the preferable steel bar limiting plate 8 is cylindrical.

In the above embodiment, the frame 1 is a C-shaped molding structure, which has the advantages of simple manufacture, low investment in manufacturing equipment, and no need of high-precision processing.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, 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 is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high temperature difference fin heater structure is characterized by comprising a frame (1), a tube bundle group (2), a half tube cavity (3), an upper tube plate (5) and a lower tube plate (6); the tube bundle groups (2) are arranged in a plurality, and the tube bundle groups (2) are arranged in the frame (1); the tube bundle group (2) comprises a plurality of fin tube bundles, and two ends of the fin tube bundles are respectively welded with the upper tube plate (5) and the lower tube plate (6); the half-tube cavity (3) is arranged between the frame (1) and the tube plate (5), and the upper tube plate (5) is connected with the frame (1) through a connecting plate (7) in a welding manner; and the welding position of the connecting plate (7) and the upper tube plate (5) avoids the Y-shaped welding seam of the half tube cavity (3) and the upper tube plate (5).

2. A hot differential fin heater structure according to claim 1, characterized in that the hot differential fin heater structure further comprises an air inlet half-tube (4), the air inlet half-tube (4) is arranged on the frame (1) through a tube seat, and one end of the air inlet half-tube passes through the opening on the frame (1) to be connected with the half-tube cavity (3).

3. A hot differential fin heater structure as claimed in claim 2, wherein the tube base of the inlet half-tube (4) has an opening clearance with the opening of the frame (1).

4. A hot differential fin heater structure as claimed in claim 3, wherein the diameter of the opening gap is 2-3 mm.

5. A hot difference fin heater structure according to claim 1, characterized in that the four corners of the lower tube plate (6) are provided with steel bar limiting plates (8).

6. A hot difference fin heater structure according to claim 5, characterized in that the steel reinforcement limiting plate (8) is cylindrical.

7. A high temperature difference fin heater structure according to claim 1, characterized in that the frame (1) is a C-shaped profiled structure.