CN210135827U - Spiral baffle heat exchanger and positioning baffle thereof - Google Patents

Abstract

The utility model provides a spiral baffling board heat exchanger and location baffling board thereof. The positioning baffle plate of the spiral baffle plate heat exchanger comprises a baffle plate body, wherein the baffle plate body is of a fan-shaped structure, the baffle plate further comprises a positioning convex part, the positioning convex part is arranged at a central sharp corner of the baffle plate body, a positioning hole is formed in the positioning convex part, and the central line of the positioning hole coincides with the circle center line of the baffle plate body. The technical scheme of this application has effectively solved the lower scheduling problem of size precision after the spiral baffling board tube bank equipment among the prior art.

Description

Spiral baffle heat exchanger and positioning baffle thereof

Technical Field

The utility model relates to a heat exchanger field particularly, relates to a spiral baffling board heat exchanger and location baffling board thereof.

Background

In the prior art, most heat exchangers are reinforced by adopting a tube side reinforcement mode, and the shell side reinforcement heat transfer mode is less. Some of the tubes are basically spiral baffle plates, and the spiral baffle plates enable shell-side media to flow spirally in the axial direction of the tube plate approximately, so that the aim of strengthening is fulfilled. The spiral baffles are generally divided into two types, one is a discontinuous spiral baffle, and the other is a continuous spiral baffle. For the discontinuous helical baffle, the whole baffle is usually cut into four pieces by adopting a processing mode, namely each baffle is 1/4 of the original whole baffle and is arranged at a certain distance according to a certain helical angle. At 1/4 the intermediate baffle butt position is due to the distance at which the 4-block 1/4 baffle is prone to form a leak. The 4-piece 1/4 baffle plate and the heat exchange tubes in the spiral baffle plate heat exchanger are installed together, and the installation size precision of the 4-piece 1/4 baffle plate is low, so that the size precision of the assembly of each heat exchange tube cannot be guaranteed, and the overall assembly structure of the tube bundle of the spiral baffle plate heat exchanger is loose.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a spiral baffle plate heat exchanger and a positioning baffle plate thereof, which solve the problem of low installation size precision of the baffle plate of the spiral baffle plate heat exchanger in the prior art.

In order to realize the above object, according to the utility model discloses an aspect provides a location baffling board of spiral baffling board heat exchanger, including the baffling board body, the baffling board body is fan-shaped structure, and the baffling board still includes the location convex part, and the setting of location convex part is provided with the locating hole in the central apex angle department of baffling board body on the location convex part, the central line of locating hole and the coincidence of the centre of a circle line of baffling board body.

Further, the central angle of the baffle is 90 °.

Furthermore, a plurality of pipe holes are formed in the baffle plate body.

Furthermore, the cross section of the positioning convex part comprises a rectangular structure and a semicircular structure, the rectangular structure is positioned between the baffle plate body and the semicircular structure, one part of the positioning hole is arranged on the rectangular structure, and the other part of the positioning hole is arranged on the semicircular structure.

Further, the locating hole is a round hole.

According to another aspect of the utility model, a spiral baffling board heat exchanger is provided, include: the shell and the tube plate connected with the shell; each baffle group comprises four baffle plates, and the baffle plates are the positioning baffle plates; the baffle plates in the baffle plates are spirally arranged on the outer side of the central fixing rod along the axis of the central fixing rod, a preset screw pitch is arranged between every two adjacent baffle plates, and a preset included angle is formed between every two baffle plates in each baffle plate; and the heat exchange tubes penetrate through the baffle plates.

Furthermore, the diameter of the positioning hole is matched with that of the central fixing rod so that the central fixing rod penetrates through the positioning hole.

Further, the included angle N between the baffle plate and the plane perpendicular to the central axis of the central fixing rod is between 5 degrees and 45 degrees.

Further, the central fixing rod is one.

Further, the shell is provided with an inlet and an outlet.

Use the technical scheme of the utility model, the location baffling board of spiral baffling board heat exchanger includes the baffling board body, and the baffling board body is fan-shaped structure. The baffle plate also comprises a positioning convex part which is arranged at the central sharp corner of the baffle plate body. The positioning convex part is provided with a positioning hole, and the center line of the positioning hole is superposed with the circle center line of the baffle plate body. In the application, the baffle plate is connected with the central positioning rod of the spiral baffle plate heat exchanger through the positioning convex part, the baffle plate is sleeved on the central positioning rod through the positioning hole, and the central line of the positioning hole is superposed with the circle center line of the baffle plate body, so that the size precision of the baffle plate body installed on the central positioning rod can be ensured, and when the heat exchange tubes of the spiral baffle plate heat exchanger are installed together with the baffle plate body, the size precision of the assembly of each heat exchange tube can be ensured, and further the assembly structure of the whole tube bundle of the spiral baffle plate heat exchanger is.

Drawings

The accompanying drawings, which form a part of the present application, 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 invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of a positioning baffle of a spiral baffle heat exchanger according to the present invention;

FIG. 2 shows a left side schematic view of the positioning baffle of FIG. 1;

fig. 3 shows a schematic structural view of an embodiment of a spiral baffle heat exchanger according to the present invention;

FIG. 4 shows a schematic diagram of the helix angle between the baffles of FIG. 3 and a central fixation rod.

Wherein the figures include the following reference numerals:

1. a baffle plate; 2-1, a first quadrant baffle plate; 3-1, a second quadrant baffle plate; 4-1, a third quadrant baffle plate; 5-1, a fourth quadrant baffle plate; 10. a baffle body; 20. a positioning projection; 21. positioning holes; 30. a tube sheet; 31. an inlet; 32. an outlet; 40. a set of baffles; 50. a central fixing rod; 60. a heat exchange tube.

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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1 and 2, the positioning baffle of the spiral baffle heat exchanger of the present embodiment includes: a baffle body 10 and a locating boss 20. The baffle plate body 10 is of a fan-shaped structure, the baffle plate further comprises a positioning convex part 20, the positioning convex part 20 is arranged at a central sharp corner of the baffle plate body 10, a positioning hole 21 is formed in the positioning convex part 20, and the center line of the positioning hole 21 is overlapped with the circle center line of the baffle plate body 10.

By applying the technical scheme of the embodiment, the positioning baffle plate of the spiral baffle plate heat exchanger comprises a baffle plate body 10, and the baffle plate body 10 is of a fan-shaped structure. The baffle further comprises a positioning convex part 20, and the positioning convex part 20 is arranged at the central sharp corner of the baffle body 10. The positioning convex part 20 is provided with a positioning hole 21, and the center line of the positioning hole 21 is superposed with the circle center line of the baffle plate body 10. In this embodiment, the baffle plate is connected with the central positioning rod of the spiral baffle plate heat exchanger through the positioning convex part 20, the baffle plate is sleeved on the central positioning rod through the positioning hole 21, and the central line of the positioning hole 21 coincides with the circle center line of the baffle plate body 10, so that the size precision of the installation of the baffle plate body 10 on the central positioning rod can be ensured, when the heat exchange tube of the spiral baffle plate heat exchanger is installed together with the baffle plate body 10, the size precision of the assembly of the heat exchange tubes can be ensured, and the overall assembly structure of the heat exchange tube in the spiral baffle plate heat exchanger is.

As shown in fig. 1 and 2, the central angle of the baffle plate is 90 °, and in the present embodiment, the baffle plate body 10 and the positioning protrusion 20 are integrally formed.

As shown in fig. 1 and 2, in the present embodiment, the baffle plate body 10 is provided with a plurality of pipe holes, so that when the heat exchange pipe of the spiral baffle plate heat exchanger is mounted on the baffle plate body 10, the heat exchange pipe can pass through the pipe holes and be mounted on the baffle plate body 10, thereby realizing the assembly of the baffle plate and the heat exchange pipe.

As shown in fig. 1 and 2, the cross section of the positioning protrusion 20 includes a rectangular structure and a semicircular structure, the rectangular structure is located between the baffle body 10 and the semicircular structure, a part of the positioning hole 21 is provided on the rectangular structure, and the remaining part is provided on the semicircular structure. Thus, the rectangular structure and the semicircular structure are convenient for integral processing and forming, and the positioning hole 21 is also convenient for being arranged on the positioning convex part 20. In the case where the fluid of the spiral baffle heat exchanger flows through the positioning protrusion 20, the semicircular structure of the positioning protrusion 20 can reduce friction with the fluid, so that the fluid smoothly passes through the positioning protrusion 20.

As shown in fig. 1 and 2, the positioning hole 21 is a circular hole, which facilitates processing of the positioning hole 21, installation, and contact area between the positioning hole 21 and the center fixing column. Under the condition that fluid of the spiral baffle plate heat exchanger flows through the positioning convex part 20, a gap is prevented from being generated between the positioning hole 21 and the central fixing column, and the condition that the fluid is not smooth in circulation when passing through the positioning convex part 20 is avoided.

The present application further provides a spiral baffle heat exchanger, as shown in fig. 3, the spiral baffle heat exchanger of the present embodiment includes: a shell and tube sheet 30 attached to the shell, a plurality of baffle groups 40, a central fixing rod 50, and a plurality of heat exchange tubes 60. Each set of baffles 40 comprises four baffles 1, which are the positioning baffles described above. The baffle plate can solve the problem that the installation size precision of the baffle plate in the prior art is low. The plurality of baffle groups 40 are all connected to the central fixing rod 50, the plurality of baffles 1 in the plurality of baffle groups 40 are spirally arranged on the outer side of the central fixing rod 50 along the axis of the central fixing rod 50, and spiral channels for fluid of the spiral baffle heat exchanger to flow through are formed among the plurality of baffle groups 40. The two adjacent baffle groups 40 are spaced by a preset screw pitch, and the size of the preset screw pitch is adjusted according to actual requirements as long as the installation accuracy among the plurality of baffle groups 40 can be ensured.

In this embodiment, the four baffles in each set of baffles 40 are at a predetermined angle. And a preset included angle is also formed between two adjacent baffle plates 1. Specifically, preset included angles between two adjacent baffle plates in the four baffle plates are equal, and an included angle is formed between one baffle plate in the four baffle plates and any one baffle plate in the other three baffle plates. That is, the four baffles include a first quadrant baffle 2-1, a second quadrant baffle 3-1, a third quadrant baffle 4-1, and a fourth quadrant baffle 5-1. A preset included angle is formed between the first quadrant baffle plate 2-1 and the second quadrant baffle plate 3-1, a preset included angle is formed between the second quadrant baffle plate 3-1 and the third quadrant baffle plate 4-1, a preset included angle is formed between the third quadrant baffle plate 4-1 and the fourth quadrant baffle plate 5-1, and a preset included angle is formed between the fourth quadrant baffle plate 5-1 and the first quadrant baffle plate 2-1. And the middle parts of the edges of two adjacent baffle plates are contacted. This facilitates the formation of the ascending and descending sections of the spiral path between the four baffles. The stability of fluid flow in the shell is guaranteed.

In the present embodiment, the heat exchange pipe 60 passes through a plurality of baffles 1. Thus, the heat exchange tube 60 is in cross connection with the plurality of baffle plates 1, so that the connection between the heat exchange tube 60 and the baffle plates 1 is tighter, and the matching precision between the plurality of heat exchange tubes 60 and the plurality of baffle plates 1 is improved.

As shown in fig. 3, the diameter of the positioning hole 21 is matched with the diameter of the center fixing rod 50 so that the center fixing rod 50 is inserted into the positioning hole 21. Thus, for the interference fit between the positioning hole 21 and the central fixing rod 50, the fitting manner (such as clearance fit or transition fit) can not only facilitate the installation of the positioning protrusion 20 and the central fixing rod 50, but also ensure the installation accuracy of the positioning protrusion 20 and the central fixing rod 50. Further, the coaxiality of the plurality of baffles 1 on the center fixing rod 50 can be ensured. Furthermore, the heat exchange tubes 60 pass through the plurality of baffle plates 1 which ensure high coaxiality, and the dimensional accuracy of the heat exchange tubes 60 in the aspects of dimensional coaxiality, helical angle, thread pitch and the like is improved. In addition, the plurality of baffles 1 also form a stable baffle structure at the central fixing rod 50.

As shown in fig. 3 and 4, the angle N between the planes of the central axes is between 5 ° and 45 °. Specifically, the angle is a spiral angle between the baffle plate 1 and a plane perpendicular to the central axis of the central fixing rod 50. In the embodiment, the proper angle of the spiral angle is selected according to actual requirements, so that the installation requirement of the dimensional accuracy between the baffle plate 1 and the central fixing rod 50 is met.

As shown in FIG. 3, in order to satisfy the coaxiality requirement for installing a plurality of baffles 1, there is one central fixing rod 50. The central fixing rod 50 is integrally formed.

As shown in fig. 3, the housing is provided with an inlet 31 and an outlet 32. In this embodiment, the fluid enters from the inlet 31, passes through the spiral channel formed by the plurality of baffles 1 and the central fixing rod 50, and flows out from the outlet 32, so as to realize the heat exchange.

In this application, the multiple sets of baffles of the spiral baffle heat exchanger are discontinuous spiral baffles. The baffle plate is provided with a positioning convex part which is provided with a positioning hole, and the central fixing rod passes through the positioning hole and is arranged at the central position of the tube plate 30. And a plurality of heat exchange tubes are assembled on the plurality of groups of baffle plates and are matched with the central fixed rod for use.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 (10)

1. The positioning baffle plate of the spiral baffle plate heat exchanger comprises a baffle plate body (10) and is characterized in that the baffle plate body (10) is of a fan-shaped structure, the baffle plate further comprises a positioning convex part (20), the positioning convex part (20) is arranged at a central sharp corner of the baffle plate body (10), a positioning hole (21) is formed in the positioning convex part (20), and the center line of the positioning hole (21) is coincided with the circle center line of the baffle plate body (10).

2. The positioning baffle as recited in claim 1, wherein the baffle has a central angle of 90 °.

3. The positioning baffle as set forth in claim 1 characterized in that said baffle body (10) is provided with a plurality of tube apertures.

4. The positioning baffle as recited in claim 1, characterized in that the cross section of the positioning protrusion (20) comprises a rectangular configuration and a semicircular configuration, the rectangular configuration being located between the baffle body (10) and the semicircular configuration, a portion of the positioning hole (21) being disposed on the rectangular configuration and the remaining portion being disposed on the semicircular configuration.

5. Positioning baffle according to claim 1, characterized in that the positioning holes (21) are circular holes.

6. A spiral baffle heat exchanger, comprising:

a shell and a tube plate (30) connected with the shell;

a plurality of baffle groups (40), each of said baffle groups (40) comprising four baffles (1), said baffles being the positioning baffle of any one of claims 1 to 5;

the baffle plate fixing device comprises a central fixing rod (50), wherein a plurality of baffle plate groups (40) are connected to the central fixing rod (50), a plurality of baffle plates (1) in the baffle plate groups (40) are spirally arranged on the outer side of the central fixing rod (50) along the axis of the central fixing rod (50), a preset screw pitch is arranged between every two adjacent baffle plate groups (40), and a preset included angle is formed between every four baffle plates (1) in each baffle plate group (40);

a plurality of heat exchange tubes (60), the heat exchange tubes (60) passing through the plurality of baffles (1).

7. The spiral baffle heat exchanger as claimed in claim 6, wherein the diameter of the positioning hole (21) of the positioning baffle is adapted to the diameter of the center fixing rod (50) so that the center fixing rod (50) is inserted into the positioning hole (21).

8. The spiral baffled heat exchanger according to claim 6, wherein the angle N between the baffle (1) and a plane perpendicular to the central axis of the central fixed rod (50) is between 5 ° and 45 °.

9. A spiral baffled heat exchanger according to claim 6, wherein the central fixing rod (50) is one.

10. A spiral baffle heat exchanger according to claim 6 wherein the shell is provided with an inlet (31) and an outlet (32).

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