A tube-sheet heat exchanger

Abstract

The present invention discloses a fixed tube sheet heat exchanger, which relates to the technical field of heat exchangers, comprising: a shell, a side wall of the shell is provided with a fluid inlet and an outlet, two ends of the shell are respectively provided with a first tube box and a second tube box, and the first tube box and the second tube box are provided with interfaces; a tube body mounting frame, the tube body mounting frame is slidably connected to the inside of the shell, the two ends of the tube body mounting frame are sealed with the inner wall of the shell, and a plurality of heat transfer tubes are provided on the tube body mounting frame; an energy storage component, the energy storage component is installed between the tube body mounting frame and the second tube box; the present invention can realize intermittent impact vibration of the tube body mounting frame during the operation of the heat exchanger through the coordinated arrangement of the tube body mounting frame, the energy storage component and the reciprocating drive component, and transmit the impact vibration to the heat transfer tube to realize the automatic cleaning operation of the inner and outer walls of the heat transfer tube. Compared with the traditional fixed tube sheet heat exchanger, the heat exchanger is easy to maintain, has high heat exchange efficiency and long service life.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchangers, and in particular to a tube-sheet heat exchanger. Background Art

[0002] Tube-sheet heat exchanger is a common heat exchange equipment, which is mainly composed of a shell, a tube sheet, a heat transfer tube and a tube box. Heat exchange is achieved by using the heat transfer tube and the cavity in the shell. The tube-sheet heat exchanger has a simple structure, low manufacturing cost and a wide range of specifications, so it is widely used in industrial production.

[0003] After long-term use, a lot of impurities will adhere to the inner and outer walls of the heat transfer tubes of the tube-sheet heat exchanger. The presence of impurities will affect the heat transfer efficiency of the heat transfer tubes. The tube sheet and the shell of the existing tube-sheet heat exchanger are sealed and connected by welding. The heat transfer tubes are welded to the tube sheet, so it is difficult to clean the outer wall of the heat transfer tube. When cleaning the inner wall of the heat transfer tube, it is necessary to stop the machine and disassemble the tube box for cleaning, which is very inconvenient. In addition, in order to improve the heat exchange efficiency, baffles are usually provided in the shell to increase the disturbance to the fluid, but this passive disturbance method still has the problem of insufficient effect. Therefore, a tube-sheet heat exchanger is needed to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a tube-sheet heat exchanger to solve the problems existing in the prior art mentioned in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A tube-sheet heat exchanger, comprising:

[0007] A shell, wherein a fluid inlet and an outlet are arranged on a side wall of the shell, a first pipe box and a second pipe box are respectively installed at two ends of the shell, and interfaces are arranged on the first pipe box and the second pipe box;

[0008] A tube mounting frame, wherein the tube mounting frame is slidably connected to the inside of the shell, and both ends of the tube mounting frame are sealed with the inner wall of the shell, and a plurality of heat transfer tubes are arranged on the tube mounting frame;

[0009] An energy storage component, which is installed between the pipe body mounting frame and the second pipe box, and is used to store energy and release energy to push the pipe body mounting frame to slide;

[0010] A reciprocating drive assembly, the reciprocating drive assembly is mounted on the first pipe box, the reciprocating drive assembly is used to drive the pipe body mounting frame to slide, and control the energy storage assembly to store or release energy;

[0011] A disturbance component, which is mounted on the pipe body mounting frame and is used to actively disturb the fluid in the shell;

[0012] The rotary drive assembly is installed in the second pipe box and is used to drive the disturbance assembly to rotate by sliding the pipe body mounting frame.

[0013] Preferably, the tube body mounting frame includes a connecting strip, a tube sheet and a baffle, wherein a plurality of connecting strips are provided, and tube sheets are connected to both ends of the connecting strip, and the tube sheets are slidingly and sealingly connected to the inner wall of the shell, and a plurality of mounting holes are provided on the tube sheet, and heat transfer tubes are installed in the mounting holes, and baffles are staggeredly arranged on the connecting strip.

[0014] Preferably, the energy storage assembly includes a sliding sleeve and a sliding column, a sliding sleeve is provided at one end of the tube body mounting frame, a sliding column is provided on the second tube box, the sliding column is slidably connected in the sliding sleeve, and an energy storage spring is also installed in the sliding sleeve.

[0015] Preferably, the reciprocating drive assembly includes a turbine, a paddle wheel and a sliding frame, the turbine is mounted at one end of the first pipe box, and the output shaft of the turbine extends into the first pipe box, the output end of the turbine is keyed to a paddle wheel, one end of the tube body mounting frame is connected to a sliding frame, a paddle rod cooperating with the paddle wheel is connected to the sliding frame, and the outlet of the turbine is connected to the interface of the first pipe box through a pipeline.

[0016] Preferably, the disturbance component comprises a driving shaft and a disturbance blade, the driving shaft is rotatably connected to the tube body mounting frame and is arranged parallel to the heat transfer tube, and the driving shaft is key-connected with the disturbance blade.

[0017] Preferably, the rotary drive assembly includes a gear, a ring gear and a driving cylinder, the gear key is connected to one end of the driving shaft, the tube body mounting frame is rotatably connected to a ring gear meshing with the gear, the second tube box is provided with a driving cylinder, the inner wall of the driving cylinder is provided with an inclined driving groove, the ring gear is keyed to a telescopic shaft, one end of the telescopic shaft extends into the driving cylinder, the telescopic shaft is connected to a rotating block via a one-way bearing, and the rotating block is connected to a driving column that slides in the driving groove.

[0018] Preferably, a hard rubber pad is provided on the connection end surface of the first pipe box.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention can realize intermittent impact vibration of the tube body mounting frame during the operation of the heat exchanger through the coordinated arrangement of the tube body mounting frame, the energy storage assembly and the reciprocating drive assembly, and transmit the impact vibration to the heat transfer tube to realize the automatic cleaning operation of the inner and outer walls of the heat transfer tube. Compared with the traditional tube-sheet heat exchanger, the heat exchanger is easy to maintain, has high heat exchange efficiency and long service life.

[0021] 2. The present invention, through the coordinated arrangement of the tube body mounting frame, the disturbance component and the rotation drive component, can drive the disturbance component to actively disturb the fluid when the tube body mounting frame slides, and combine it with the passive disturbance of the baffle to improve the heat exchange efficiency of the heat exchanger.

[0022] 3. The present invention converts fluid power into power for the operation of the energy storage component and the disturbance component through a water turbine, without the need for additional driving equipment, making the structure of the heat exchanger more reasonable and compact, and more energy-saving and environmentally friendly to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the shell of the present invention.

[0025] Figure 3 It is a schematic diagram of the structure of the pipe body mounting frame of the present invention.

[0026] Figure 4 It is a schematic diagram of the structure of the disturbance component of the present invention.

[0027] Figure 5 It is a schematic diagram of the structure of the reciprocating drive assembly of the present invention.

[0028] Figure 6 It is a schematic diagram of the structure of the rotary drive assembly of the present invention.

[0029] Figure 7 It is a schematic diagram of the cross-sectional structure of the driving cylinder of the present invention.

[0030] In the figure: 1. shell; 2. first pipe box; 3. second pipe box; 4. pipe body mounting frame; 41. connecting strip; 42. tube sheet; 43. baffle; 5. energy storage assembly; 51. sliding sleeve; 52. sliding column; 6. heat transfer tube; 7. reciprocating drive assembly; 71. turbine; 72. paddle wheel; 73. sliding frame; 74. paddle rod; 8. disturbance assembly; 81. drive shaft; 82. disturbance blade; 9. rotary drive assembly; 91. gear; 92. gear ring; 93. drive cylinder; 94. drive groove; 95. telescopic shaft; 96. rotating block; 97. drive column. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] See also Figure 1-7 , the present invention provides the following technical solutions:

[0033] A tube-sheet heat exchanger comprises: a shell 1, a side wall of the shell 1 is provided with a fluid inlet and an outlet, two ends of the shell 1 are respectively installed with a first pipe box 2 and a second pipe box 3, the first pipe box 2 and the second pipe box 3 are both provided with interfaces, the interface on the first pipe box 2 is a fluid inlet, and the interface on the second pipe box 3 is a fluid outlet, and the fluid in the shell 1 exchanges heat with the fluid in the pipe box through a heat transfer pipe 6.

[0034] The tube body mounting frame 4 is slidably connected to the inside of the shell 1. Both ends of the tube body mounting frame 4 are sealed with the inner wall of the shell 1. A plurality of heat transfer tubes 6 are arranged on the tube body mounting frame 4. The tube body mounting frame 4 includes a connecting strip 41, a tube sheet 42 and a baffle 43. A plurality of connecting strips 41 are provided. Both ends of the connecting strip 41 are connected with tube sheets 42. The tube sheet 42 is slidably and sealedly connected with the inner wall of the shell 1. A plurality of mounting holes are provided on the tube sheet 42. Heat transfer tubes 6 are installed in the mounting holes. Baffles 43 are staggeredly arranged on the connecting strip 41. The tube body mounting frame 4 can drive the heat transfer tubes 6 thereon to slide in the shell 1, so as to provide conditions for automatic cleaning of the heat transfer tubes 6.

[0035] An energy storage component 5 is installed between the tube body mounting frame 4 and the second tube box 3. The energy storage component 5 is used to store energy and release energy to push the tube body mounting frame 4 to slide. The energy storage component 5 includes a sliding sleeve 51 and a sliding column 52. The sliding sleeve 51 is provided at one end of the tube body mounting frame 4. The second tube box 3 is provided with a sliding column 52. The sliding column 52 is slidably connected in the sliding sleeve 51. An energy storage spring is also installed in the sliding sleeve 51. The energy released by the energy storage spring can push the tube body mounting frame 4 to slide quickly toward the first tube box 2, so that the tube body mounting frame 4 stops moving after contacting the first tube box 2. In this process, the tube body mounting frame 4 generates impact vibration, which shakes off the impurities on the inner and outer walls of the heat transfer tube 6, thereby realizing automatic cleaning of the inner and outer walls of the heat transfer tube 6. A hard rubber pad is provided on the connecting end surface of the first tube box 2. The setting of the hard rubber pad can reduce the impact wear between the tube body mounting frame 4 and the end surface of the first tube box 2, and can reduce the impact noise.

[0036] A reciprocating drive assembly 7, wherein the reciprocating drive assembly 7 is mounted on the first pipe box 2, and is used to drive the pipe body mounting frame 4 to slide, and control the energy storage assembly 5 to store or release energy; the reciprocating drive assembly 7 comprises a turbine 71, a paddle wheel 72 and a sliding frame 73, wherein the turbine 71 is mounted on one end of the first pipe box 2, and the output shaft of the turbine 71 extends into the first pipe box 2, and a paddle wheel 72 is keyed to the output end of the turbine 71, and a sliding frame 73 is connected to one end of the pipe body mounting frame 4, and a lever 74 cooperating with the paddle wheel 72 is connected to the sliding frame 73, and the outlet of the turbine 71 is connected to the interface of the first pipe box 2 through a pipeline, and the paddle wheel 72 is provided with an inclined surface for pushing the lever 74 and a plane for releasing the lever 74; the turbine 71 drives the energy storage assembly 5 and the disturbance assembly 8 by means of fluid power, and no power equipment needs to be added, so that the heat exchanger is more energy-efficient.

[0037] A disturbance component 8 is installed on the tube body mounting frame 4 and is used to actively disturb the fluid in the shell 1; the disturbance component 8 includes a driving shaft 81 and a disturbance blade 82, the driving shaft 81 is rotatably connected to the tube body mounting frame 4 and is arranged parallel to the heat transfer tube 6, and the driving shaft 81 is keyed with a disturbance blade 82, and the disturbance blade 82 is arranged at intervals between the baffles 43.

[0038] A rotation drive assembly 9 is installed in the second pipe box 3 and is used to drive the disturbance assembly 8 to rotate by sliding the pipe body mounting frame 4; the rotation drive assembly 9 includes a gear 91, a gear ring 92 and a drive cylinder 93, the gear 91 is keyed to one end of the drive shaft 81, the pipe body mounting frame 4 is rotatably connected to the gear ring 92 meshing with the gear 91, the second pipe box 3 is provided with a drive cylinder 93, the inner wall of the drive cylinder 93 is provided with an inclined drive groove 94, and the gear ring 92 is keyed to a telescopic shaft 95 One end of the telescopic shaft 95 extends into the driving cylinder 93, and a rotating block 96 is connected to the telescopic shaft 95 through a one-way bearing. The purpose of the single-line bearing arrangement here is that only when the tube body mounting frame 4 slides toward the second tube box 3 to drive the energy storage component 5 to store energy, the rotary drive component 9 will drive the disturbance component 8 to rotate, so that the tube body mounting frame 4 can obtain greater impact energy when sliding in the opposite direction. The rotating block 96 is connected to a driving column 97 that slides in the driving groove 94. The arrangement of this structure can use the reciprocating drive component 7 to drive the disturbance component 8 to rotate.

[0039] The working process of the present invention is as follows:

[0040] When the tube-sheet heat exchanger is used, fluid 1 is introduced into the fluid inlet on the shell 1, and fluid 2 is introduced into the inlet of the turbine 71. Fluid 2 flows into the first pipe box 2 from the outlet of the turbine 71 through the pipeline, and flows into the second pipe box 3 through the heat transfer pipe 6. Fluid 1 and fluid 2 achieve heat exchange by contacting the inner and outer surfaces of the heat transfer pipe 6.

[0041] The fluid 2 passes through the turbine 71, causing its output end to rotate. The output end of the turbine 71 drives the paddle wheel 72 to rotate. The inclined surface on the paddle wheel 72 pushes the lever 74, causing the sliding frame 73 to drive the tube body mounting frame 4 to slide rightward as a whole. During this process, the sliding column 52 squeezes the energy storage spring in the sliding sleeve 51, causing the energy storage spring to store energy. When the lever 74 moves to the plane position of the paddle wheel 72, the energy storage spring releases energy, pushing the tube body mounting frame 4 quickly to the left. The left end of the tube body mounting frame 4 impacts the hard rubber pad on the first tube box 2. The tube body mounting frame 4 generates impact vibration and drives the heat transfer tube 6 to vibrate, thereby realizing continuous automatic cleaning of the inner and outer walls of the heat transfer tube 6. At the same time, the overall reciprocating sliding of the tube body mounting frame 4 can also increase the disturbance of the fluid and improve the heat exchange efficiency.

[0042] During the process of the tube body mounting frame 4 sliding to the right, the tube body mounting frame 4 drives the gear ring 92 and the telescopic shaft 95 to move to the right, so that the telescopic shaft 95 drives the driving column 97 on the rotating block 96 to slide in the driving groove 94, so that the rotating block 96 rotates, and the rotating block 96 drives the telescopic shaft 95 and the gear ring 92 to rotate through the one-way bearing, so that the gear ring 92 drives the driving shaft 81 to rotate through the gear 91, and the driving shaft 81 drives the disturbance blade 82 to rotate, thereby realizing active turbulence of the fluid and improving the heat exchange effect.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tube-sheet heat exchanger, characterized in that: include: A shell (1), wherein a fluid inlet and an outlet are provided on a side wall of the shell (1), a first pipe box (2) and a second pipe box (3) are respectively installed at two ends of the shell (1), and interfaces are provided on the first pipe box (2) and the second pipe box (3); A tube body mounting frame (4), the tube body mounting frame (4) being slidably connected to the inside of the shell (1), the two ends of the tube body mounting frame (4) being sealed to the inner wall of the shell (1), and a plurality of heat transfer tubes (6) being arranged on the tube body mounting frame (4); An energy storage component (5), the energy storage component (5) being installed between the tube body mounting frame (4) and the second tube box (3), the energy storage component (5) being used to store energy and release energy to push the tube body mounting frame (4) to slide; the energy storage component (5) comprising a sliding sleeve (51) and a sliding column (52), one end of the tube body mounting frame (4) being provided with the sliding sleeve (51), the second tube box (3) being provided with the sliding column (52), the sliding column (52) being slidably connected in the sliding sleeve (51), and an energy storage spring being further installed in the sliding sleeve (51); A reciprocating drive assembly (7), the reciprocating drive assembly (7) being mounted on the first pipe box (2), the reciprocating drive assembly (7) being used to drive the pipe body mounting frame (4) to slide, and to control the energy storage assembly (5) to store or release energy; A disturbance component (8), the disturbance component (8) being mounted on the tube body mounting frame (4) and used for actively disturbing the fluid in the shell (1); the disturbance component (8) comprising a drive shaft (81) and a disturbance blade (82); the drive shaft (81) being rotatably connected to the tube body mounting frame (4) and arranged parallel to the heat transfer tube (6); and the disturbance blade (82) being key-connected to the drive shaft (81); A rotary drive assembly (9), the rotary drive assembly (9) being installed in the second pipe box (3) and used for utilizing the sliding movement of the pipe body mounting frame (4) to drive the disturbance assembly (8) to rotate; the rotary drive assembly (9) comprising a gear (91), a gear ring (92) and a drive cylinder (93); the gear (91) being key-connected to one end of a drive shaft (81); the pipe body mounting frame (4) being rotatably connected to a gear ring (92) meshing with the gear (91); a drive cylinder (93) being provided in the second pipe box (3); an inclined drive groove (94) being provided on the inner wall of the drive cylinder (93); a telescopic shaft (95) being key-connected to the gear ring (92); one end of the telescopic shaft (95) extending into the drive cylinder (93); a rotating block (96) being connected to the telescopic shaft (95) via a one-way bearing; and a driving column (97) sliding in the driving groove (94) being connected to the rotating block (96).

2. A tube-sheet heat exchanger according to claim 1, characterized in that: The tube body mounting frame (4) comprises a connecting strip (41), a tube sheet (42) and a baffle (43), wherein a plurality of connecting strips (41) are provided, and both ends of the connecting strip (41) are connected to the tube sheet (42), and the tube sheet (42) is slidably and sealingly connected to the inner wall of the shell (1), and a plurality of mounting holes are provided on the tube sheet (42), and heat transfer tubes (6) are installed in the mounting holes, and the baffles (43) are arranged on the connecting strip (41) at intervals and in a staggered manner.

3. A tube-sheet heat exchanger according to claim 2, characterized in that: The reciprocating drive assembly (7) comprises a water turbine (71), a paddle wheel (72) and a sliding frame (73); the water turbine (71) is mounted on one end of the first pipe box (2), and the output shaft of the water turbine (71) extends into the first pipe box (2); the output end of the water turbine (71) is keyed to the paddle wheel (72); one end of the pipe body mounting frame (4) is connected to the sliding frame (73); a paddle rod (74) cooperating with the paddle wheel (72) is connected to the sliding frame (73); and the outlet of the water turbine (71) is connected to an interface of the first pipe box (2) via a pipeline.

4. The tube-sheet heat exchanger according to claim 1, characterized in that: A hard rubber pad is provided on the connection end surface of the first pipe box (2).

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