A connecting seat, a partition plate, and a shell and tube heat exchanger

Abstract

The present invention discloses a connection seat, which is used to form a partition plate, and includes a connection base plate, the side of which is used to be fixedly connected to the wall of a head pipe box; the connection base plate is provided with an inspection hole and a connection body used to divide the inspection hole into at least two inspection sub-holes, and the connection body is detachably connected to the connection base plate. After the connection body is disassembled, at least two inspection sub-holes are combined into one inspection hole, providing a larger working space; in addition, when the connection body is connected to the connection base plate, the structural strength of the connection base plate can be ensured, and the anti-deformation ability of the connection seat is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of shell and tube heat exchangers, and in particular to a partition plate structure. Background Art

[0002] The partition plate is an indispensable part of the multi-pass shell and tube heat exchanger. Its function is to force the feed water or steam to flow according to the specified stroke. Usually, the partition plate is welded to the wall of the header box on all sides. The header box is provided with a fluid input port and a fluid output port for the input and output of water, water vapor and water vapor. When it is necessary to perform operations such as pipe system inspection in the header box, the working space is usually limited. The existing practice is to open an inspection hole and a corresponding cover plate on the partition plate. At this time, if the inspection hole is too small, the working space is not enough. If the hole is too large, the strength of the partition plate is not enough. Designers usually obtain a larger inspection hole while ensuring the strength of the partition plate, but the working space is still not enough at this time. Summary of the invention

[0003] In order to solve the above problems, the present invention aims to provide a partition structure to provide a larger working space.

[0004] To achieve the above object, the present invention is implemented according to the following technical solutions:

[0005] A connecting seat is used to form a partition plate, comprising a connecting base plate, the side of which is used to be fixedly connected to the wall of a head pipe box; the connecting base plate is provided with an inspection hole and a connecting body used to divide the inspection hole into at least two inspection sub-holes, and the connecting body is detachably connected to the connecting base plate.

[0006] Preferably, the connecting body is provided with at least two connecting ends connected to the inspection hole, and the connecting ends are provided with abutment structures, the abutment structure includes an abutment body connected to the connecting body and an abutment portion arranged on the connecting end, the side surface of the abutment body abuts against the plate plane of the connecting substrate, and the abutment portion abuts against the hole wall surface of the inspection hole.

[0007] Preferably, a side of the connecting body close to the abutting body is provided with an avoidance recess.

[0008] Preferably, the side surface of the abutment body is fixedly connected to the side surface of the connecting body, and the abutment body and the connecting body are integrally formed; the side wall surface of the avoidance recess includes the inner end surface of the abutment body, and the bottom wall surface of the avoidance recess includes the side wall surface of the connecting body close to the abutment body.

[0009] A partition plate comprises the above-mentioned connecting seat.

[0010] Preferably, the partition plate further includes at least two cover plates covering the inspection sub-holes, and the at least two cover plates are connected to the at least two inspection sub-holes in a one-to-one correspondence.

[0011] Preferably, the partition plate further includes at least two sealing gaskets, which are arranged between the cover plate and the inspection sub-hole. An abutment structure is provided between any two adjacent sealing gaskets, and the abutment structure includes an abutment sheet arranged beside the sealing gasket, and the abutment sheet abuts against the side of the adjacent sealing gasket.

[0012] Preferably, the end of the abutment sheet gradually tilts outward in a direction away from the sealing gasket.

[0013] Preferably, a side of the cover plate close to the inspection sub-hole abuts against the connector.

[0014] A shell and tube heat exchanger comprises the above-mentioned partition plate, wherein the partition plate is arranged on a side close to the cover plate toward the fluid input port of the header box, and the partition plate is arranged on a side away from the cover plate toward the fluid output port of the header box.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] After the connector is disassembled, at least two inspection sub-holes are combined into one inspection hole, providing a larger working space; in addition, when the connector is connected to the connection substrate, the structural strength of the connection substrate can be ensured, thereby enhancing the anti-deformation capability of the connection seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0018] Figure 1 It is a schematic structural diagram of an embodiment of a connecting seat and a partition plate in the present invention.

[0019] Figure 2 It is an exploded view of an embodiment of a partition plate in the present invention.

[0020] Figure 3 It is a structural schematic diagram of an embodiment of the connection relationship between two sealing gaskets in the present invention.

[0021] Figure 4 It is a schematic structural diagram of an embodiment of a connecting seat, a partition plate, and a shell and tube heat exchanger in the present invention.

[0022] Among them: 1-connecting substrate, 2-inspection sub-hole, 3-connecting body, 31-abutting body, 311-inner end surface, 32-abutting part, 33-avoiding recess, 4-cover plate, 5-sealing gasket, 51-abutting sheet. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention, and the embodiments described are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present invention.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0025] Example 1

[0026] like Figures 1 to 4 As shown, this is an embodiment of the present invention, specifically: a connecting seat, used to form a partition plate, including a connecting base plate 1, the side of the connecting base plate 1 is used to be fixedly connected to the wall of the head pipe box; the connecting base plate 1 is provided with an inspection hole, a connecting body 3 used to divide the inspection hole into at least two inspection sub-holes 2, and the connecting body 3 is detachably connected to the connecting base plate 1. The detachable connection can be achieved by means of snap connection, bolt connection, etc. In this embodiment, the connecting body 3 is connected to the connecting base plate 1 by a bolt structure, and the bolt connection can easily adjust the pre-tightening force, so that the connecting body 3 and the connecting base plate 1 can be firmly connected, and deformation caused by excessive connection strength can be avoided. In this embodiment, there are two connecting bodies 3 in total, and the inspection hole is divided into three inspection sub-holes 2.

[0027] As a further preferred embodiment, the connector 3 is provided with at least two connection ends connected to the inspection hole, and an abutment structure is provided on the connection end, the abutment structure includes an abutment body 31 connected to the connector 3 and an abutment portion 32 provided on the connection end, the side surface of the abutment body 31 abuts against the plate plane of the connecting substrate 1, and the abutment portion 32 abuts against the hole wall surface of the inspection hole. In this embodiment, the connector 3 is in the shape of an elongated strip as a whole, and is provided with two connection sections. Optionally, the connector 3 can be provided in a cross shape or other shapes and have multiple connection sections. The abutment structure improves the anti-deformation ability of the connecting substrate 1 along the plate thickness direction and along the radial direction of the inspection sub-hole 2 through the abutment body 31, the abutment portion 32 and the connecting substrate 1, so that the plate plane of the connecting substrate 1 can maintain a good flatness, and the plate plane of the connecting substrate 1 can maintain a good degree of fit when cooperating with other plate planes, thereby improving the sealing ability.

[0028] Further as a preferred embodiment, a side of the connecting body 3 close to the abutting body 31 is provided with an avoidance recess 33 , and the avoidance recess 33 further increases the maintenance space.

[0029] As a further preferred embodiment, the side surface of the abutment body 31 is fixedly connected to the side surface of the connection body 3, and the abutment body 31 and the connection body 3 are integrally formed; the side wall surface of the avoidance recess 33 includes the inner end surface 311 of the abutment body 31, and the bottom wall surface of the avoidance recess 33 includes the side wall surface of the connection body 3 close to the abutment body 31. Figures 1 to 4 As shown, in this embodiment, the abutting body 31 and the connecting body 3 are integrally formed and both are arch-shaped as a whole, and the avoidance recess 33 is located at the recess of the arch.

[0030] Example 2

[0031] like Figures 1 to 4 As shown, this is an embodiment of the present invention, specifically: a partition plate, including the above-mentioned connection seat. After the connector 3 is disassembled, at least two inspection sub-holes 2 are combined into one inspection hole, providing a larger working space; in addition, when the connector 3 is connected to the connection substrate 1, the structural strength of the connection substrate 1 can be ensured, and the anti-deformation ability of the partition plate is enhanced.

[0032] As a further preferred embodiment, the partition plate further comprises at least two cover plates 4 covering the inspection sub-holes 2, and the at least two cover plates 4 are connected to the at least two inspection sub-holes 2 in a one-to-one correspondence. In this embodiment, there are three inspection sub-holes 2 and three cover plates 4 in total.

[0033] Example 3

[0034] Different from the second embodiment, the partition plate further includes at least two sealing gaskets 5, which are arranged between the cover plate 4 and the inspection sub-hole 2. An abutment structure is provided between any two adjacent sealing gaskets 5, and the abutment structure includes an abutment sheet 51 arranged beside the sealing gasket 5, and the abutment sheet 51 abuts against the side of the adjacent sealing gasket 5. The abutment sheet 51 reduces the leakage channel between the sealing gaskets 5 and improves the sealing performance of the partition plate. The abutment sheet 51 can abut against the side of the adjacent sealing gasket 5 through structures such as dovetail grooves and bevel edges. Figures 1 to 4 As shown, the cover plate 4, the sealing gasket 5, the connecting substrate 1, the connecting body 3, and the abutment 31 are connected by a bolt structure, wherein the bolt structure includes a connecting hole section and a connecting bolt, and the threaded hole includes a first through hole penetrating the abutment 31, a second through hole penetrating the connecting substrate 1, a third through hole penetrating the sealing gasket 5, and a threaded hole arranged on the cover plate 4, wherein the third threaded hole is arranged as a blind hole to improve the anti-leakage performance of the cover plate 4, and the first through hole and the second through hole can be arranged as threaded holes to improve the sealing performance of the partition plate at the bolt structure.

[0035] Further as a preferred embodiment, the end of the abutment sheet 51 gradually tilts outward in a direction away from the sealing gasket 5, further reducing the leakage channel between the sealing gaskets 5 and further improving the sealing performance of the partition plate.

[0036] Example 4

[0037] Different from Example 2, the side of the cover plate 4 close to the inspection sub-hole 2 is in contact with the connector 3, which improves the installation stability of the cover plate 4, reduces the possibility of shaking of the cover plate 4, and increases the service life of the partition plate.

[0038] Example 5

[0039] A shell and tube heat exchanger includes a partition plate as described above, wherein the side of the partition plate close to the cover plate 4 is arranged toward the fluid inlet of the head box, and the side of the partition plate away from the cover plate 4 is arranged toward the fluid outlet of the head box. At this time, the avoidance recess 33 is toward the fluid outlet, providing a larger maintenance space for the fluid outlet side of the head tube box.

[0040] The partition plate includes a connection seat, and the connection seat includes a connection base plate 1. The side of the connection base plate 1 is used to be fixedly connected to the wall of the head pipe box; the connection base plate 1 is provided with an inspection hole and a connector 3 for dividing the inspection hole into at least two inspection sub-holes 2, and the connector 3 is detachably connected to the connection base plate 1. The detachable connection can be achieved by means of a snap connection, a bolt connection, etc. In this embodiment, the connector 3 is connected to the connection base plate 1 by a bolt structure. In this embodiment, two connectors 3 are provided, and the inspection hole is divided into three inspection sub-holes 2. The partition plate also includes three cover plates 4 covering the inspection sub-holes 2, and the three cover plates 4 are connected to the three inspection sub-holes 2 in a one-to-one correspondence.

[0041] The connector 3 is provided with at least two connection ends connected to the inspection hole, and abutment structures are provided on the connection ends, the abutment structures include an abutment body 31 connected to the connector 3 and an abutment portion 32 provided on the connection end, the side of the abutment body 31 abuts against the plate plane of the connection substrate 1, and the abutment portion 32 abuts against the hole wall surface of the inspection hole. In this embodiment, the connector 3 is in the shape of a long strip as a whole, and is provided with two connection sections. Optionally, the connector 3 can be provided in a cross shape or the like and have multiple connection sections. A relief recess 33 is provided on one side of the connector 3 close to the abutment body 31.

[0042] The side surface of the abutment body 31 is fixedly connected to the side surface of the connection body 3, and the abutment body 31 and the connection body 3 are integrally formed; the side wall surface of the avoidance recess 33 includes the inner end surface 311 of the abutment body 31, and the bottom wall surface of the avoidance recess 33 includes the side wall surface of the connection body 3 close to the abutment body 31. Figures 1 to 4 As shown, in this embodiment, the abutting body 31 and the connecting body 3 are integrally formed and both are arch-shaped as a whole, and the avoidance recess 33 is located at the recess of the arch.

[0043] The partition plate also includes three sealing gaskets 5, which are arranged between the cover plate 4 and the inspection sub-hole 2. In this embodiment, there are three inspection sub-holes 2, three cover plates 4, and three sealing gaskets 5. The side of the cover plate 4 close to the inspection sub-hole 2 abuts against the connector 3. An abutment structure is provided between any two adjacent sealing gaskets 5, and the abutment structure includes an abutment sheet 51 arranged on the side of the sealing gasket 5, and the abutment sheet 51 abuts against the side of the adjacent sealing gasket 5. The end of the abutment sheet 51 gradually tilts outward in a direction away from the sealing gasket 5. The abutment sheet 51 can abut against the side of the adjacent sealing gasket 5 through structures such as a dovetail groove and a bevel. As shown in FIG. Figures 1 to 4As shown, the cover plate 4, the sealing gasket 5, the connecting substrate 1, the connecting body 3, and the abutment 31 are connected by a bolt structure, wherein the bolt structure includes a connecting hole section and a connecting bolt, and the threaded hole includes a first through hole penetrating the abutment 31, a second through hole penetrating the connecting substrate 1, a third through hole penetrating the sealing gasket 5, and a threaded hole arranged on the cover plate 4, wherein the third threaded hole is arranged as a blind hole to improve the anti-leakage performance of the cover plate 4, and the first through hole and the second through hole can be arranged as threaded holes to improve the sealing performance of the partition plate at the bolt structure.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A partition plate, characterized in that: It comprises a connection seat, the connection seat comprises a connection base plate, the side of the connection base plate is used to be fixedly connected to the wall surface of the header pipe box; the connection base plate is provided with an inspection hole and a connector for dividing the inspection hole into at least two inspection sub-holes, and the connector is detachably connected to the connection base plate; The connecting body is provided with at least two connecting ends connected to the inspection hole, and the connecting ends are provided with abutment structures, the abutment structures include an abutment body connected to the connecting body and abutment parts provided on the connecting ends, the side surface of the abutment body abuts against the plate plane of the connecting substrate, and the abutment parts abut against the hole wall surface of the inspection hole; It also includes at least two cover plates covering the inspection sub-holes, and the at least two cover plates are connected to the at least two inspection sub-holes in a one-to-one correspondence.

2. The partition plate according to claim 1, characterized in that: A side of the connecting body close to the abutting body is provided with an avoidance recess.

3. The partition plate according to claim 2, characterized in that: The side surface of the abutment body is fixedly connected to the side surface of the connecting body, and the abutment body and the connecting body are integrally formed; the side wall surface of the avoidance recess includes the inner end surface of the abutment body, and the bottom wall surface of the avoidance recess includes the side wall surface of the connecting body close to the abutment body.

4. The partition plate according to claim 1, characterized in that: It also includes at least two sealing gaskets, which are arranged between the cover plate and the inspection sub-hole. An abutment structure is provided between any two adjacent sealing gaskets, and the abutment structure includes an abutment sheet arranged beside the sealing gasket, and the abutment sheet abuts against the side of the adjacent sealing gasket.

5. The partition plate according to claim 4, characterized in that: The end of the contact piece is gradually inclined outward in a direction away from the sealing gasket.

6. The partition plate according to claim 1, characterized in that: A side of the cover plate close to the inspection sub-hole abuts against the connecting body.

7. A shell and tube heat exchanger, characterized in that: It comprises the partition plate as described in any one of claims 1 to 6, wherein the side of the partition plate close to the cover plate is arranged toward the fluid input port of the head box, and the side of the partition plate away from the cover plate is arranged toward the fluid output port of the head box.

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