CN216282908U - A square structure ship heat exchanger - Google Patents

Abstract

The utility model discloses a ship heat exchanger with a square structure, which belongs to the field of ship heat exchanger parts and comprises a square shell pass, a baffle plate and a plurality of heat exchange tubes, wherein the square shell pass consists of a U-shaped bending part, an L-shaped bending part and a baffle plate; the baffle is provided with a tube pass liquid outlet and a tube pass liquid inlet; the shell pass liquid inlet is arranged on the shell pass main body of the square shell pass close to one end of the baffle, and the shell pass liquid outlet is arranged on the first side surface; a plurality of through holes on the upper baffle plate of the baffle plate are symmetrical to a plurality of through holes on the lower baffle plate; one end of the heat exchange tube of the upper baffle plate is connected with the tube side liquid inlet; one end of the heat exchange tube of the lower baffle plate is connected with the tube side liquid outlet, and the other end of the heat exchange tube of the lower baffle plate is connected with the other end of the heat exchange tube of the upper baffle plate which is symmetrical to the heat exchange tube of the lower baffle plate. The utility model has the advantages of compact structure, small occupied space, light weight, convenient maintenance, low cost and strong practicability.

Description

A square structure ship heat exchanger

technical field

The utility model relates to the field of ship heat exchange devices, in particular to a square structure ship heat exchanger.

Background technique

Ships generally have limited space, and there are certain requirements for the shape and volume of the equipment. The overall equipment system of the ship requires the principle of compactness and reliability. The ship heat exchanger is an important conversion device that provides a power system for the ship. It is generally integrated in the air supply cold box, so it has higher requirements on the shape and structure.

The existing conventional cylindrical heat exchangers have the following shortcomings: the cylindrical heat exchangers are arranged in the cold box with low space utilization, which is not conducive to the arrangement of other pipes around them; the conventional arrangement of circular heat exchangers The method is basically a horizontal arrangement, and its relevant installation position needs to be reserved separately; the compatibility arrangement of the circular heat exchanger with other instruments, valves, and pipes is poor; The heat pipe arrangement utilizes a small space.

Utility model content

The purpose of the utility model is to provide a square structure ship heat exchanger in view of the above problems existing in the prior art, which mainly solves the problems of more compact shape and structure, more utilization integrated in the cold box, and compatibility with other equipment.

The purpose of the present utility model is achieved through the following technical solutions:

A square structure ship heat exchanger, comprising a square shell side, a baffle plate and a plurality of heat exchange tubes, the baffle plate is arranged in the square shell side, and the plurality of heat exchange tubes pass through the baffle plate ; The square shell is composed of a U-shaped bending piece, an L-shaped bending piece and a baffle plate, the L-shaped bending piece is composed of a first panel and a second panel, and the U-shaped bending piece and the The first panels together constitute the main body of the square shell, the second panel is the first side of the square shell, and the baffle is the second side of the square shell.

The technical solution improves and perfects the existing process technology and equipment performance. The square shell path formed by U-shaped bending parts, L-shaped bending parts and baffle plates, compared with the cylindrical shell path in the prior art, the space utilization rate of the square shell path in the ship can be significantly improved, which is convenient and convenient. Other piping in the vessel is routed and secured around the shell side. By arranging the liquid outlet of the tube side and the liquid inlet in the same direction on one side of the ship heat exchanger of the technical solution, it is convenient for the low-temperature medium to pass through the tube side. In addition, the square shell path formed by the combination of the U-shaped bending part and the L-bending part can effectively reduce the three welding seams and improve the efficiency of process assembly.

Preferably, the baffle is provided with a tube-side liquid outlet and a tube-side liquid inlet;

The shell-side liquid inlet is arranged on the shell-side main body of the square shell-side close to one end of the baffle plate, and the shell-side liquid outlet is arranged on the side surface of the first shell-side;

The baffle plate is composed of an upper baffle plate and a lower baffle plate, and the plurality of through holes on the upper baffle plate are symmetrical with the plurality of through holes on the lower baffle plate, so that the upper baffle plate is Several heat exchange tubes of the plate are symmetrical with several heat exchange tubes of the lower baffle;

One end of the heat exchange tube of the upper baffle is connected to the tube-side liquid inlet;

One end of the heat exchange tube of the lower baffle is connected to the liquid outlet of the tube side, and the other end of the heat exchange tube of the lower baffle is connected to the upper baffle that is symmetrical with the heat exchange tube of the lower baffle The other end of the heat exchange tube of the plate is connected.

By arranging the liquid inlet of the shell side on the main body of the square shell side near the liquid inlet of the tube side and one end of the liquid outlet of the tube side, the liquid outlet of the shell side is arranged on the first side of the square shell side, Therefore, the liquid inlet of the tube side and the liquid outlet of the tube side are arranged opposite to the liquid outlet of the shell side, thereby facilitating the passage of the high temperature medium through the shell side. The low temperature medium passes through the tube side and the high temperature medium passes through the shell side, which effectively solves the thermal expansion and contraction stress of the low temperature medium, and improves the heat exchange efficiency of the ship heat exchanger with the square structure.

Preferably, the first panel of the L-shaped bending member is provided with a plurality of plug welding holes at equal distances, and the configuration is for plug welding with the baffle.

In this technical solution, a plurality of plug welding holes are provided at equal distances on the first panel connected to the U-shaped bending member. During assembly, two adjacent sides of the baffle plate are directly inside the shell side body. Welding with the inner cavity of the shell side body, that is, welding and fixing with the adjacent two sides of the U-bending part, after the assembly is completed, plug welding is directly performed on the surface of the shell-side body, that is, the first side of the L-bending part, so as to Finally, three sides of the baffle are formed and welded with the main body of the shell side to effectively fix the baffle.

Preferably, a plurality of the plug welding holes are in a staggered structure.

In this technical solution, the uniform force of the shell side body is strengthened due to the plurality of oppositely staggered baffles, thereby effectively reducing the thickness of the shell side body due to the uniform force of the reinforced shell side body. Therefore, on the one hand, the baffle plate of the technical solution can satisfy the baffle function of the general baffle plate, and on the other hand, it can play the role of strengthening the uniform force of the shell side main body.

Preferably, the baffle is a rectangular plate; three adjacent sides of the baffle are bent to form three bending surfaces.

In this technical solution, the bending surfaces of the baffles are welded to the side walls of the main body of the tube that are in contact with each other, so as to fix the baffles, thereby eliminating the fixed tie rod structure required for fixing the traditional baffles. The uniform force of the shell side main body can be strengthened, and the technical problem of increasing the thickness of the shell side main body due to the uniform force of the strengthened shell side main body can be overcome.

Preferably, the heat exchange tubes are finned tubes.

In this technical solution, the heat exchange tube is a finned tube. Compared with the polished rod heat exchange tube with the same diameter, the surface area of the finned tube is much larger than that of the polished rod heat exchange tube with the same diameter. Therefore, in order to achieve With the same technical effect, the volume occupied by the finned tube is much smaller than that of the polished rod heat exchange tube, so the use of the finned tube can effectively reduce the volume occupied by the structure of the ship heat exchanger. The weight ratio of the polished rod heat exchange tubes with the same heat exchange area is 6:1, so in order to achieve the same technical effect, the finned tubes can also reduce the weight of the technical solution.

Preferably, one end of the shell side body close to the first side surface is provided with a lifting lug.

Preferably, a mounting and positioning plate is provided on the shell side body.

Preferably, it also includes a first header pipe and a second header pipe; one end of the first header pipe is connected to the pipe-side liquid inlet, and the other end of the first header pipe is connected to the exchange of the upper baffle plate. One end of the heat pipe is connected; one end of the second collecting pipe is connected with the liquid outlet of the pipe side, and the other end of the second collecting pipe is connected with one end of the heat exchange pipe of the lower baffle plate.

In this technical scheme, a first collecting pipe is arranged at the liquid inlet of the tube side to collect the low-temperature medium, so that the low-temperature medium can be easily divided into several heat exchange tubes; After the medium, it is convenient to discharge the device of the utility model.

Preferably, a hole is formed on the second panel of the L-shaped bending member, and an inner edge of the hole is connected with a flange that is bent relative to the second panel to extend to the outside of the second panel.

In this technical solution, the purpose of forming the hole is to facilitate the welding of the nozzle of the liquid outlet of the shell side to form the nozzle assembly of the shell side.

The utility model provides a square structure ship heat exchanger, which has the following beneficial effects:

1. The square structure can effectively reduce the system integration module, that is, the overall volume of the air supply cold box, thereby reducing the manufacturing cost;

2. The square structure has good compatibility with the arrangement of instruments, valves and pipelines around it, making the arrangement more compact and beautiful, which is convenient for later maintenance;

3. The finned tube is adopted. In order to achieve the same technical effect, the finned tube, compared with the general polished rod heat exchange tube, has a smaller structure and lighter weight, which meets the needs of ship heat exchangers;

4. Compared with the traditional shell-and-tube heat exchanger, the square heat exchanger eliminates the fixed tube sheet and replaces it with a header tube, which greatly reduces the use of materials and greatly reduces the manufacturing cost of the equipment.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be construed as a limitation on the scope of the formula. For those skilled in the art, other related drawings can also be obtained from these drawings without any creativity.

1 is a front view of an exemplary embodiment of the present invention;

Figure 2 is a top view of an exemplary embodiment of the present invention;

3 is a structural diagram of a U-shaped bending member in an exemplary embodiment of the present invention;

4 is a structural diagram of an L-shaped bending member in an exemplary embodiment of the present invention;

Fig. 5 is the front view of the baffle plate in the exemplary embodiment of the present invention;

6 is a side view of a baffle in an exemplary embodiment of the present invention.

Marking in the figure: 1-shell side body, 2-baffle plate, 3-heat exchange tube, 41-tube side liquid inlet, 42-tube side liquid outlet, 51-shell side liquid inlet, 52-shell side Liquid outlet, 6-U-shaped bending part, 7-L-shaped bending part, 8-lifting lug, 9-installation positioning plate, 10-first collecting pipe, 11-second collecting pipe, 12-plug welding hole .

Detailed ways

The present utility model will be described in detail below in conjunction with the accompanying drawings.

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention.

Example

Please refer to FIGS. 1 to 6 , a ship heat exchanger with a square structure includes a square shell side, a baffle 2 and a number of heat exchange tubes. The baffle 2 is arranged in the square shell side, and the several The heat exchange tubes pass through the baffle plate 2 . 3 to 4, the square shell is composed of a U-shaped bending part 6, an L-shaped bending part 7 and a baffle plate, and the L-shaped bending part 7 is composed of a first panel and a second panel The U-shaped bending part 6 and the first panel together constitute the shell side main body 1 of the square shell side, the second panel is the first side of the square shell side, and the baffle is The second side of the square shell; wherein, the length of the U-shaped bending part 6 is consistent with the length of the first panel of the L-shaped bending part 7, and the width of the U-shaped bending part 6 is the same as that of the L-shaped bending part 7 The width of the second panel is the same, and the height of the U-shaped bending part 6 is the same as the height of the second panel of the L-shaped bending part 7, so as to facilitate the welding of the L-shaped bending part 7 and the U-shaped bending part 6. The shell side body 1, after the internal structure of the shell side body 1 is assembled, the baffle plate is placed on the opposite side of the second panel of the L-shaped bending part 7, and the width of the baffle plate is the same as the width of the second panel. The height of the panel is consistent with the height of the second panel, so as to facilitate the welding of the baffle with the L-shaped bending part 7 and the U-shaped bending part 6. Based on the cooperation of the L-shaped bending part 7 and the U-shaped bending part 6, the effective 3 welds are reduced to improve process assembly efficiency.

The baffle is provided with a tube-side liquid outlet 42 and a tube-side liquid inlet 41; the shell-side liquid inlet 51 is arranged on the shell-side main body 1 of the square shell-side close to one end of the baffle. The shell-side liquid outlet 52 is provided on the first side surface; thus, the tube-side liquid inlet 41 and the tube-side liquid outlet 42 are arranged in the same direction, and the shell-side liquid outlet 52 is opposite to the tube-side liquid inlet and outlet. Therefore, the low temperature medium passes through the tube side and the high temperature medium passes through the shell side, which effectively solves the thermal expansion and contraction stress of the low temperature medium and improves the heat exchange efficiency of the ship heat exchanger with the square structure.

The baffle plate 2 is composed of an upper baffle plate and a lower baffle plate. The plurality of through holes on the upper baffle plate are symmetrical with the plurality of through holes on the lower baffle plate, so that the upper baffle plate is symmetric. Several heat exchange tubes of the flow plate are symmetrical with several heat exchange tubes of the lower baffle; one end of the heat exchange tube of the upper One end of the heat exchange tube is connected to the tube-side liquid outlet 42, and the other end of the heat exchange tube of the lower baffle is symmetrical with the heat exchange tube 3 of the lower baffle plate and the heat exchange tube of the upper baffle plate. 3 Connect the other end.

Referring to FIGS. 4 to 5 , a plurality of plug welding holes 12 are equidistantly provided on the first panel of the L-shaped bending member 7, and the plurality of plug welding holes 12 are in a staggered structure and are configured to The baffle plate 2 is plug welded; the baffle plate 2 is a rectangular plate, and three adjacent sides of the baffle plate 2 are bent to form three bending surfaces. The plurality of baffles 2 arranged in opposite and staggered directions strengthen the uniform stress on the shell side body 1 , thereby effectively reducing the thickness of the shell side body 1 due to the uniform stress on the shell side body 1 being strengthened. Therefore, the baffle plate 2 of the present technical solution can satisfy the baffle function of the general baffle plate 2 on the one hand, and can strengthen the uniform force of the shell side body 1 on the other hand. The bending surfaces of the baffles 2 are respectively welded to the side walls of the tube side body in contact with the baffles 2 to fix the baffles 2, thereby eliminating the fixed tie rod structure required for fixing the traditional baffles 2. The uniform force of the shell-side main body 1 is strengthened to overcome the technical problem of increasing the thickness of the shell-side main body 1 due to the uniform force of the strengthened shell-side main body 1 .

1 to 2 again, the heat exchange tube 3 is a finned tube, the end of the shell side body 1 close to the first side is provided with a lifting lug 8, and the shell side body 1 is also provided with an installation positioning plate 9; Further, one end of the first collecting pipe 10 is connected to the pipe-side liquid inlet 41, the other end of the first collecting pipe 10 is connected to one end of the heat exchange pipe 3 of the upper baffle, and the second collecting pipe 10 is connected to one end of the heat exchange pipe 3 of the upper baffle plate. One end of the tube 11 is connected to the tube-side liquid outlet 42 , and the other end of the second header 11 is connected to one end of the heat exchange tube 3 of the lower baffle. Among them, the heat exchange tube 3 is a finned tube. Compared with the polished rod heat exchange tube with the same diameter, the surface area of the finned tube is much larger than that of the polished rod heat exchange tube with the same diameter. Therefore, in order to achieve the same Technical effect, the volume occupied by the finned tube is much smaller than that of the polished rod heat exchange tube, so the use of the finned tube can effectively reduce the volume occupied by the structure of the ship heat exchanger. The weight ratio of the polished rod heat exchange tube of the thermal area is 6:1, so in order to achieve the same technical effect, the finned tube can also reduce the weight of the square ship heat exchanger of the present invention. In this embodiment, the first collecting pipe 10 is arranged at the liquid inlet 41 of the tube side to collect the low-temperature medium, so that the low-temperature medium can be easily divided into several heat exchange tubes 3; The collecting pipe 11 collects the medium after the pipe process, so that the medium can be easily discharged from the utility model.

A hole is formed on the second side of the L-shaped bending member 7, and the inner edge of the hole is connected with a flange that is bent relative to the second side to extend to the outside of the second side.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (10)

1. A ship heat exchanger with a square structure, comprising a shell side, a baffle plate (2) and a plurality of heat exchange tubes (3), the baffle plate (2) is arranged in the shell side, and a number of the The heat pipe (3) runs through the baffle (2), and is characterized in that: The shell path is a square shell path, and the square shell path is composed of a U-shaped bending part (6), an L-shaped bending part (7) and a baffle plate; The L-shaped bending part (7) is composed of a first panel and a second panel; The U-shaped bending part (6) and the first panel together constitute the shell side main body (1) of the square shell side; The second panel is the first side of the square shell, and the baffle is the second side of the square shell. 2. A square structure ship heat exchanger according to claim 1, characterized in that: the baffle plate is provided with a pipe-side liquid outlet (42) and a pipe-side liquid inlet (41); The shell-side liquid inlet (51) is arranged on the shell-side main body (1) close to one end of the baffle plate, and the shell-side liquid outlet (52) is arranged on the first side surface; The baffle plate (2) is composed of an upper baffle plate and a lower baffle plate, and the plurality of through holes on the upper baffle plate are symmetrical with the plurality of through holes on the lower baffle plate, so that the The plurality of heat exchange tubes (3) of the upper baffle plate are symmetrical with the plurality of heat exchange tubes (3) of the lower baffle plate; One end of the heat exchange tube (3) of the upper baffle is connected to the tube-side liquid inlet (41); One end of the heat exchange tube (3) of the lower baffle is connected to the pipe-side liquid outlet (42), and the other end of the heat exchange tube (3) of the lower baffle is connected to the same exchange of the lower baffle. The other ends of the heat exchange tubes (3) of the symmetrical upper baffles of the heat pipes (3) are connected. 3 . The ship heat exchanger with square structure according to claim 1 , wherein a plurality of plug welding holes ( 12 ) are equidistantly arranged on the first panel of the L-shaped bending piece ( 7 ). 4 . 4. A ship heat exchanger with a square structure according to claim 3, characterized in that: a plurality of the plug welding holes (12) are in a staggered structure, and are configured to be connected with the baffle (2) Do plug welding. 5. A ship heat exchanger with a square structure according to claim 1, characterized in that: the baffle (2) is a rectangular plate, and three adjacent sides of the baffle (2) are bent Processing to form three bending surfaces. 6 . The ship heat exchanger with square structure according to claim 1 , wherein the heat exchange tubes ( 3 ) are finned tubes. 7 . 7. A square structure ship heat exchanger according to any one of claims 1-5, characterized in that: one end of the shell side main body (1) close to the first side surface is provided with a lifting lug (8). ). 8. A ship heat exchanger with a square structure according to any one of claims 1-5, characterized in that: an installation positioning plate (9) is provided on the shell side main body (1). 9. A square structure ship heat exchanger according to claim 2, characterized in that: further comprising a first header (10) and a second header (11); One end of the first collecting pipe (10) is connected with the pipe-side liquid inlet (41), and the other end of the first collecting pipe (10) is connected with one end of the heat exchange pipe (3) of the upper baffle plate connect; One end of the second collecting pipe (11) is connected with the pipe-side liquid outlet (42), and the other end of the second collecting pipe (11) is connected with one end of the heat exchange pipe (3) of the lower baffle plate connect. 10. A ship heat exchanger with a square structure according to any one of claims 1-5, characterized in that: the second panel of the L-shaped bending piece (7) is formed with a hole, and the inner part of the hole is formed with a hole. The edge is connected with a flange which is bent relative to the second panel to extend to the outside of the second panel.

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