阅读说明：本技术 一种管式换热器用的防漏装置 (Leakage-proof device for tubular heat exchanger ) 是由 董卫 于 2019-09-24 设计创作，主要内容包括：本发明提供了一种管式换热器用的防漏装置,包括端座、管板和定位件；端座包括底板、圆环形侧壁、安装台和隔板,圆环形侧壁竖直固定于底板的一侧,底板上固定连接有位于圆环形侧壁内侧的安装台,安装台和圆环形侧壁同轴设置并与圆环形侧壁之间形成有环形沟槽,安装台的中部形成有贯穿底板的流体通孔,隔板固定安装于流体通孔内,并将流体通孔分割为进流通道和出流通道,圆环形侧壁的外侧用于与管壳套接；管板包括板体和环形挡边,在使用时,将该防漏装置安装在端盖和管壳之间,管壳内的液体要渗入端盖中需要经过环形沟槽,而环形挡边位于环形沟槽内,增大可流体渗入的距离长度,使两种流体更难发生漏流的情况。(The invention provides a leakage-proof device for a tubular heat exchanger, which comprises an end seat, a tube plate and a positioning piece, wherein the end seat is provided with a first end face and a second end face; the end seat comprises a bottom plate, a circular side wall, an installation table and a partition plate, wherein the circular side wall is vertically fixed on one side of the bottom plate, the installation table positioned on the inner side of the circular side wall is fixedly connected onto the bottom plate, the installation table and the circular side wall are coaxially arranged, an annular groove is formed between the installation table and the circular side wall, a fluid through hole penetrating through the bottom plate is formed in the middle of the installation table, the partition plate is fixedly installed in the fluid through hole and divides the fluid through hole into an inflow channel and an outflow channel, and the outer side of the circular side wall is used for; the tube plate comprises a plate body and an annular flange, when the tube plate is used, the leakage-proof device is arranged between the end cover and the tube shell, liquid in the tube shell needs to penetrate into the end cover and pass through the annular groove, and the annular flange is positioned in the annular groove, so that the distance length for penetrating the liquid is increased, and the leakage of the two kinds of liquid is more difficult to occur.)

1. The leak-proof device for the tube-type heat exchanger is characterized by comprising an end seat, a tube plate and a positioning piece;

the end seat comprises a bottom plate, a circular side wall, an installation platform and a partition plate, wherein the circular side wall is vertically fixed on one side of the bottom plate, the installation platform positioned on the inner side of the circular side wall is fixedly connected to the bottom plate and used for installing the tube plate, the installation platform and the circular side wall are coaxially arranged, an annular groove is formed between the installation platform and the circular side wall, a fluid through hole penetrating through the bottom plate is formed in the middle of the installation platform, the partition plate is fixedly installed in the fluid through hole and divides the fluid through hole into an inflow channel and an outflow channel, and the outer side of the circular side wall is used for being sleeved with a tube shell;

the pipe plate comprises a plate body and an annular flange, the plate body is a circular plate, a central groove for mounting a central shaft is formed in the middle of one side of the plate body, a plurality of heat exchange holes for mounting heat exchange pipes are formed in the plate body, the heat exchange holes are all located on the outer side of the central groove, the annular flange is fixedly connected to one side of the plate body and located at the edge position of the plate body, when the pipe plate is detachably mounted on the end seat, the annular flange is matched with the annular groove, one side, close to the annular flange, of the plate body is abutted to the end face of the mounting table, one part of the heat exchange holes is communicated with the inflow channel, and the other part of the heat exchange holes is communicated with the outflow channel;

the positioning piece is arranged between the end seat and the tube plate and used for installing and positioning the end seat and the tube plate.

2. The leak preventer for a tube heat exchanger according to claim 1, wherein a plurality of mounting heads are formed on a side of the tube sheet away from the annular rib, the plurality of mounting heads are disposed in one-to-one correspondence with the plurality of heat exchanging holes, and the mounting heads have mounting holes formed in correspondence with the heat exchanging holes.

3. The leak protection device for the tube heat exchanger as claimed in claim 1, wherein the bottom plate is provided with a sealing groove at the outer side of the circular sidewall.

4. The leak-proof device for a tube heat exchanger as claimed in claim 1, wherein the bottom plate is formed with a screw hole near the edge for detachable connection with the end cap.

5. The leak preventer for a tube heat exchanger according to claim 1, wherein the cross-sectional dimensions of the inlet channel and the outlet channel are the same.

6. The leak preventer for a tube heat exchanger according to claim 1, wherein the number of the heat exchange holes located on both sides of the partition plate is the same.

7. The leak preventer for a tube heat exchanger according to claim 1, wherein the annular side wall has an end surface height greater than an end surface height of the mounting plate, and the depth of the annular groove with respect to the mounting plate corresponds to the height of the annular rib.

8. The leak protection device for a tube heat exchanger as claimed in claim 1, wherein the positioning member is a positioning pin having a threaded end, the mounting platform has a blind threaded hole formed on an end surface thereof for threaded connection with the positioning pin, and the plate body has a positioning hole formed therein corresponding to the blind threaded hole.

Technical Field

The invention relates to the field of heat exchanger equipment, in particular to a leakage-proof device for a tubular heat exchanger.

Background

The heat exchanger is an important device in industries such as oil refining, chemical engineering, environmental protection, energy, electric power and the like, the shell-and-tube heat exchanger is the most used heat exchanger type in the current market, one fluid flows in a heat exchange tube in the shell-and-tube heat exchanger, the other fluid flows outside the heat exchange tube in the shell, heat exchange is carried out through the two fluids of the heat exchange tube, and meanwhile, a baffle plate is arranged in the shell; the fluid in the shell is provided with a specific channel for flowing, so that the heat transfer effect of the two fluids is better.

As shown in fig. 1, a shell and tube heat exchanger on the market generally comprises a shell and tube 101, end caps 102 mounted at both ends of the shell and tube 101, a tube plate 103 mounted between the shell and tube 101 and the end caps 102, a central shaft 104 and a heat exchange tube 105 mounted between the two tube plates, and baffles 106 mounted on the central shaft 104 and the heat exchange tube 105, wherein a first fluid flows through a space inside the shell and tube 101 outside the heat exchange tube 105, a second fluid flows through the heat exchange tube 105, the first fluid and the second fluid exchange heat between the heat exchange tube 105 to perform a heat exchange function, in the prior art, although the types of baffles are many, the heat exchange tube and the tube plate for mounting and fixing the heat exchange tube are basically the same, the tube plates, the shell and the end caps are connected by screw threads, a seal gap is left at the inevitable screw thread connection, the first fluid usually leaks into the end caps through the shell and tube plates, so that the two fluids are mixed,

disclosure of Invention

The invention provides a leakage-proof device for a tubular heat exchanger, which is used for solving the technical problem.

The scheme for solving the technical problems is as follows: a leakage-proof device for a tube heat exchanger comprises an end seat, a tube plate and a positioning piece;

the end seat comprises a bottom plate, a circular side wall, an installation platform and a partition plate, wherein the circular side wall is vertically fixed on one side of the bottom plate, the installation platform positioned on the inner side of the circular side wall is fixedly connected to the bottom plate and used for installing the tube plate, the installation platform and the circular side wall are coaxially arranged, an annular groove is formed between the installation platform and the circular side wall, a fluid through hole penetrating through the bottom plate is formed in the middle of the installation platform, the partition plate is fixedly installed in the fluid through hole and divides the fluid through hole into an inflow channel and an outflow channel, and the outer side of the circular side wall is used for being sleeved with a tube shell;

the pipe plate comprises a plate body and an annular flange, the plate body is a circular plate, a central groove for mounting a central shaft is formed in the middle of one side of the plate body, a plurality of heat exchange holes for mounting heat exchange pipes are formed in the plate body, the heat exchange holes are all located on the outer side of the central groove, the annular flange is fixedly connected to one side of the plate body and located at the edge position of the plate body, when the pipe plate is detachably mounted on the end seat, the annular flange is matched with the annular groove, one side, close to the annular flange, of the plate body is abutted to the end face of the mounting table, one part of the heat exchange holes is communicated with the inflow channel, and the other part of the heat exchange holes is communicated with the outflow channel;

the positioning piece is arranged between the end seat and the tube plate and used for installing and positioning the end seat and the tube plate.

When the leakage-proof device for the tubular heat exchanger is installed, the annular flanges are aligned to the annular grooves, so that the end seat and the tube plate are sleeved together, and then the positioning piece is installed to position the end seat and the tube plate, so that the leakage-proof device is simple to install; when the leakage-proof device is used, the leakage-proof device is arranged between the end cover and the pipe shell, liquid in the pipe shell needs to pass through the annular groove when penetrating into the end cover, and the annular rib is positioned in the annular groove, so that the distance length for penetrating the liquid is increased, and the two kinds of liquid are more difficult to leak.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a shell-and-tube heat exchanger according to the prior art;

FIG. 2 is a schematic perspective view of a leak preventer for a tube heat exchanger according to an embodiment of the present invention;

FIG. 3 is an exploded view of a leakage preventing device for a tube heat exchanger according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of an end seat of a leak protection device for a tubular heat exchanger according to an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a tube sheet of a leak preventer for a tube heat exchanger according to an embodiment of the present invention;

fig. 6 is a perspective view of the tube sheet from another perspective relative to fig. 5.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

As shown in fig. 2 to 3, the present invention provides a leakage-proof device for a tube heat exchanger, which comprises an end seat 1, a tube plate 2 and a positioning piece 3.

As shown in fig. 4, the end seat 1 includes a bottom plate 11, a circular side wall 12, an installation table 13 and a partition plate 14, the circular side wall 12 is vertically fixed to one side of the bottom plate 11, the installation table 13 located inside the circular side wall 12 is fixedly connected to the bottom plate 11 for installation of the tube plate 2, the installation table 13 and the circular side wall 12 are coaxially disposed, an annular groove 13a is formed between the circular side wall 12 and the installation table 13, a fluid through hole 13b penetrating through the bottom plate 11 is formed in the middle of the installation table 13, and the partition plate 14 is fixedly installed in the fluid through hole 13b and divides the fluid through hole 13b into an inflow channel b1 and an outflow channel b 2.

As shown in fig. 5 and 6, the tube plate 2 includes a plate body 21, an annular rib 22 and a plurality of mounting heads 23, the plate body 21 is a circular plate, a central groove 21a for mounting a central shaft (not shown in the figure) is formed in the middle of one side of the plate body 21, the plate body 21 is formed with a plurality of heat exchanging holes 21b for mounting heat exchanging pipes (not shown in the drawings), the plurality of heat exchanging holes 21b are located outside the central groove 21a, the annular rib 22 is fixedly connected to one side of the plate body 21 and is located at the edge of the plate body 21, when the tube plate 2 is detachably mounted to the end seat 1, the annular rib 22 is fitted into the annular groove 13a, one side of the plate body 21 close to the annular rib 22 is abutted against the end face of the mounting table 13, and a part of the plurality of heat exchange holes 21b is communicated with the inflow channel b1, and the other part is communicated with the outflow channel b 2; the mounting heads 23 are formed on one side of the tube plate 2 far away from the annular rib 22, the mounting heads 23 and the heat exchange holes 21b are arranged in a one-to-one correspondence manner, and mounting holes are formed in the mounting heads 23 corresponding to the heat exchange holes 21 b.

In order to ensure that the flow rates of the fluids passing through the inlet channel b1 and the outlet channel b2 are as uniform as possible, the cross-sectional sizes of the inlet channel b1 and the outlet channel b2 are the same, and the number of the heat exchange holes 21b on both sides of the partition 14 is the same.

In order to further enhance the leakage-proof effect of the leakage-proof device, the height of the end surface of the circular ring-shaped side wall 12 is higher than that of the end surface of the mounting table 13, and the depth of the annular groove 13a relative to the mounting table 13 is consistent with the height of the annular rib 22.

The bottom plate 11 is located the outside of ring shape lateral wall 12 is seted up seal groove 11a, and during the use, install the sealing washer in seal groove 11a, can guarantee that the fluid in the heat exchanger can not outwards reveal when the heat exchanger is used.

The bottom plate 11 is formed with a threaded hole 11b near the edge for detachable connection with the end cover.

The positioning piece 3 is installed between the end seat 1 and the tube plate 2 and used for installing and positioning the end seat 1 and the tube plate 2.

Specifically, the locating piece 3 is a locating pin with one end provided with a thread, a threaded blind hole 13c in threaded connection with the locating pin is formed in the end face of the mounting table 13, and a locating hole 21c is formed in the plate body 21 corresponding to the threaded blind hole 13 c.

When the leakage-proof device for the tubular heat exchanger is installed, the annular flanges are aligned to the annular grooves, so that the end seat and the tube plate are sleeved together, and then the positioning piece is installed to position the end seat and the tube plate, so that the leakage-proof device is simple to install; when the leakage-proof device is used, the leakage-proof device is arranged between the end cover and the pipe shell, liquid in the pipe shell needs to pass through the annular groove when penetrating into the end cover, and the annular rib is positioned in the annular groove, so that the distance length for penetrating the liquid is increased, and the two kinds of liquid are more difficult to leak.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.