Sealing device of graphite heat exchange tube in graphite heat exchanger

Abstract

The utility model relates to the technical field of graphite heat exchange tubes, and discloses a sealing device of a graphite heat exchange tube in a graphite heat exchanger. The heat exchange tube comprises a heat exchange tube body, a sealing mechanism is arranged on the outer side face of the heat exchange tube body, a protection mechanism is arranged on the outer side face of the heat exchange tube body, the sealing mechanism comprises a driving part and a sealing part, the sealing part is located on the right side face of the driving part, the protection mechanism comprises a fixing part and a protection part, and the protection part is located on the outer side face of the fixing part. A sealing mechanism utilizes a rotating handle in a driving part to drive a first bevel gear to rotate under the action of the rotating handle, so that the first bevel gear drives a second bevel gear and a third bevel gear to rotate, and the second bevel gear and the third bevel gear drive two gears to move in opposite directions; and the gear drives the semicircular gear ring to move, so that the semicircular gear ring seals the gear ring, leakage of the gear ring is avoided, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite heat exchange tubes, in particular to a sealing device for graphite heat exchange tubes in a graphite heat exchanger. Background Art

[0002] In the process of industrial production of titanium dioxide, a large amount of waste acid is generated. Direct discharge will cause serious environmental pollution. Reusing the waste acid after treatment can not only solve the environmental pollution problem, but also bring considerable economic benefits to the enterprise. When treating waste acid, a multi-stage concentration method is generally used. Since the waste acid contains impurities such as metatitanic acid and ferrous sulfate, as the waste acid is concentrated, the acid concentration becomes higher and higher, and the impurities gradually crystallize out. Therefore, in the waste acid concentration device, the design and selection of equipment is very important.

[0003] Compared with the prior art: since the seal between the graphite heat exchange tube and the tube sheet is not tight, not only will the waste acid enter the shell side and corrode the shell, but it will also make it difficult to replace the graphite heat exchange tube, thereby reducing work efficiency.

[0004] Therefore, a sealing device for a graphite heat exchange tube in a graphite heat exchanger is proposed. Utility Model Content

[0005] The utility model aims to provide a sealing device for a graphite heat exchange tube in a graphite heat exchanger to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing device for a graphite heat exchange tube in a graphite heat exchanger, comprising: a heat exchange tube body, a sealing mechanism is provided on the outer side of the heat exchange tube body, and a protective mechanism is provided on the outer side of the heat exchange tube body; the sealing mechanism comprises a driving part and a sealing part; the sealing part is located on the right side of the driving part; the protective mechanism comprises a fixing part and a protective part; the protective part is located on the outer side of the fixing part.

[0007] Preferably, the driving part includes a handle, a box body is provided on the bottom surface of the handle, the handle extends through and to the inner side surface of the box body, a first bevel gear is provided on the inner side surface of the box body, the top surface of the first bevel gear is fixedly connected to the bottom end surface of the handle, a second bevel gear is provided on the outer end surface of the first bevel gear, the outer end surface of the second bevel gear is meshingly connected with the outer end surface of the first bevel gear, a third bevel gear is provided on the right side of the second bevel gear, the outer end surface of the third bevel gear is meshingly connected with the outer end surface of the first bevel gear, and the first bevel gear is driven by the hand so that the first bevel gear drives the second bevel gear and the third bevel gear.

[0008] Preferably, the sealing portion includes a rotating sleeve, a left end face of the rotating sleeve is fixedly connected to the right end face of the third bevel gear, a polished rod is provided on the inner side face of the rotating sleeve, the polished rod extends through the second bevel gear and the outer side of the rotating sleeve, the inner wall of the second bevel gear is fixedly connected to the surface of the polished rod, the left end face of the polished rod is connected to the inner left side face of the casing through a bearing seat 1, the surface of the polished rod is rotatably connected to the inner wall of the rotating sleeve, the right end face of the polished rod is provided with a vertical plate, the left side face of the vertical plate is meshed with the right end face of the polished rod through a bearing seat 2, two semicircular gear rings are provided on the left side of the vertical plate, and two gears are provided on the left side of the two semicircular gear rings, the inner wall of the left gear is fixedly connected to the surface of the rotating sleeve, and the inner wall of the right gear is fixedly connected to the right end surface of the polished rod, and the polished rod is driven by the second bevel gear so that the polished rod and the rotating sleeve move in opposite directions.

[0009] Preferably, the outer end surfaces of the two gears are meshingly connected with the tooth surfaces of two semicircular gear rings, and the semicircular gear rings are driven by the reverse motion of the gears.

[0010] Preferably, a door-shaped plate is provided on the outer side of the two gears, and six limit columns are provided on the inner side of the door-shaped plate, the outer end faces of the six limit columns are fixedly connected to the inner side of the door-shaped plate, the inner side of the six limit columns are movably connected to the surfaces of six semicircular gear rings, the top surface of the door-shaped plate is fixedly connected to the bottom surface of the vertical plate, and the semicircular gear rings are limited by the limit columns so as to be sealed and clamped by the semicircular gear rings.

[0011] Preferably, the left side of the door-shaped plate is fixedly connected to the right side of the box body.

[0012] Preferably, the fixing portion comprises a protective sleeve, and two protective plates are arranged on the inner side of the protective sleeve.

[0013] Preferably, the protective part includes eight springs, eight sliding rods are arranged on the inner sides of the eight springs, the eight sliding rods extend through and extend to the outside of the protective sleeve, the surfaces of the eight sliding rods are slidably connected to the inner wall of the protective sleeve, the inner end faces of the eight sliding rods are fixedly connected to the outer sides of the two protective plates, and buffering is performed by the springs.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the sealing device for the graphite heat exchange tube in the graphite heat exchanger is

[0015] 1) The sealing mechanism utilizes the hand in the driving part to drive the first bevel gear to rotate under the action of the hand, so that the first bevel gear drives the second bevel gear and the third bevel gear to rotate, so that the second bevel gear and the third bevel gear drive the two gears to move in the opposite direction, so that the gear drives the semicircular gear ring to move, so that the semicircular gear ring seals it, thereby preventing leakage, thereby improving work efficiency;

[0016] 2) By using the protective cover in the fixed part through the protective mechanism, when the protective plate is subjected to pressure, the slide bar slides, thereby protecting it from damage caused by the outside world. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the overall cross-section of the structure of the utility model;

[0019] Figure 3 It is a three-dimensional schematic diagram of the sealing structure of the utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the gear of the sealing structure of the utility model;

[0021] Figure 5 It is a three-dimensional schematic diagram of the protective structure of the utility model.

[0022] In the figure: 1 heat exchange tube body, 2 sealing mechanism, 21 driving part, 22 sealing part, 211 handle, 212 box, 213 first bevel gear, 214 second bevel gear, 215 third bevel gear, 221 rotating sleeve, 222 bare rod, 223 vertical plate, 224 semicircular gear ring, 225 gear, 226 door plate, 3 protection mechanism, 31 fixing part, 32 protection part, 311 protection sleeve, 312 protection plate, 321 spring, 322 sliding rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1 , Figure 4 The utility model provides a technical solution: a sealing device for a graphite heat exchange tube in a graphite heat exchanger, comprising: a heat exchange tube body 1, a sealing mechanism 2 is arranged on the outer side of the heat exchange tube body 1, and a protective mechanism 3 is arranged on the outer side of the heat exchange tube body 1; the sealing mechanism 2 comprises a driving part 21 and a sealing part 22; the sealing part 22 is located on the right side of the driving part 21; the protective mechanism 3 comprises a fixing part 31 and a protective part 32; the protective part 32 is located on the outer side of the fixing part 31.

[0026] The driving part 21 includes a handle 211, a box body 212 is arranged on the bottom surface of the handle 211, the handle 211 extends through the inner side surface of the box body 212, a first bevel gear 213 is arranged on the inner side surface of the box body 212, the top surface of the first bevel gear 213 is fixedly connected with the bottom end surface of the handle 211, a second bevel gear 214 is arranged on the outer end surface of the first bevel gear 213, the outer end surface of the second bevel gear 214 is meshingly connected with the outer end surface of the first bevel gear 213, a third bevel gear 215 is arranged on the right side of the second bevel gear 214, and the outer end surface of the third bevel gear 215 is meshingly connected with the outer end surface of the first bevel gear 213.

[0027] The sealing portion 22 includes a rotating sleeve 221, a left end face of the rotating sleeve 221 is fixedly connected to the right end face of the third bevel gear 215, a polished rod 222 is provided on the inner side of the rotating sleeve 221, the polished rod 222 extends through the second bevel gear 214 and the outer side of the rotating sleeve 221, the inner wall of the second bevel gear 214 is fixedly connected to the surface of the polished rod 222, the left end face of the polished rod 222 is connected to the inner left side face of the box body 212 through a bearing seat 1, the surface of the polished rod 222 is rotatably connected to the inner wall of the rotating sleeve 221, a vertical plate 223 is provided on the right end face of the polished rod 222, the left side face of the vertical plate 223 is meshed with the right end face of the polished rod 222 through a bearing seat 2, two semicircular gear rings 224 are provided on the left side of the vertical plate 223, two gears 225 are provided on the left side of the two semicircular gear rings 224, the inner wall of the left gear 225 is fixedly connected to the surface of the rotating sleeve 221, and the inner wall of the right gear 225 is fixedly connected to the right end surface of the polished rod 222.

[0028] The outer end surfaces of the two gears 225 are meshedly connected with the tooth surfaces of the two semicircular gear rings 224 .

[0029] A door plate 226 is arranged on the outside of the two gears 225, and six limit columns are arranged on the inner side of the door plate 226. The outer end faces of the six limit columns are fixedly connected to the inner side of the door plate 226, and the inner side of the six limit columns are movably connected to the surfaces of six semicircular gear rings 224. The top surface of the door plate 226 is fixedly connected to the bottom surface of the vertical plate 223.

[0030] The left side of the door-shaped plate 226 is fixedly connected to the right side of the box body 212 .

[0031] Furthermore, in this embodiment, the sealing mechanism 2 utilizes the hand 211 in the driving part 21 to drive the first bevel gear 213 to rotate under the action of the hand 211, so that the first bevel gear 213 drives the second bevel gear 214 and the third bevel gear 215 to rotate. When the second bevel gear 214 rotates, it drives the light rod 222 to rotate, so that when the light rod 222 rotates, it drives the rotating sleeve 221 to rotate, so that the rotating sleeve 221 drives the left gear 225 to rotate, so that the two gears 225 form opposite direction movement, thereby driving the semicircular gear ring 224 to clamp and seal;

[0032] Furthermore, in this embodiment, the sealing mechanism 2 utilizes the hand 211 in the driving part 21 to drive the first bevel gear 213 to rotate under the action of the hand 211, so that the first bevel gear 213 drives the second bevel gear 214 and the third bevel gear 215 to rotate, so that the second bevel gear 214 and the third bevel gear 215 drive the two gears 225 to move in the opposite direction, so that the gear 225 drives the semicircular gear ring 224 to move, so that the semicircular gear ring 224 seals it, thereby preventing it from leaking, thereby improving work efficiency;

[0033] Embodiment 2

[0034] See also Figure 1 , Figure 2 , Figure 5 On the basis of the first embodiment, it is further obtained that the fixing portion 31 includes a protective sleeve 311 , and two protective plates 312 are arranged on the inner side of the protective sleeve 311 .

[0035] The protection part 32 includes eight springs 321, and eight slide bars 322 are arranged on the inner sides of the eight springs 321. The eight slide bars 322 extend through and extend to the outside of the protection sleeve 311. The surfaces of the eight slide bars 322 are slidably connected to the inner wall of the protection sleeve 311, and the inner end surfaces of the eight slide bars 322 are fixedly connected to the outer sides of the two protection plates 312.

[0036] Furthermore, in this embodiment, the protective mechanism 3 utilizes the protective sleeve 311 in the fixing portion 31 so that when the protective plate 312 is subjected to pressure, the slide bar 322 slides on the inner wall of the protective sleeve 311, thereby relieving the pressure through the spring 321;

[0037] Furthermore, in this embodiment, the protection mechanism 3 utilizes the protection sleeve 311 in the fixing portion 31 so that when the protection plate 312 is subjected to pressure, the slide bar 322 slides, thereby protecting it from damage caused by the outside.

[0038] When in use, the operator sets the sealing mechanism 2 on the heat exchange tube body 1 through the sealing mechanism 2 and utilizes the turning handle 211 in the driving part 21 to drive the first bevel gear 213 to rotate under the action of the turning handle 211, so that the first bevel gear 213 drives the second bevel gear 214 and the third bevel gear 215 to rotate. When the second bevel gear 214 rotates, it drives the light rod 222 to rotate, so that when the light rod 222 rotates, it drives the rotating sleeve 221 to rotate, so that the rotating sleeve 221 drives the left gear 225 to rotate, so that the two gears 225 form opposite direction movement, thereby driving the semicircular gear ring 224 to clamp and seal, so that the protective mechanism 3 is set on the outside of the sealing mechanism 2 and utilizes the protective sleeve 311 in the fixing part 31 through the protective mechanism 3. When the protective plate 312 is subjected to pressure, the sliding rod 322 slides on the inner wall of the protective sleeve 311, so that the pressure is relieved by the spring 321.

[0039] Although the 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 sealing device for a graphite heat exchange tube in a graphite heat exchanger, comprising a heat exchange tube body (1), characterized in that: The outer side surface of the heat exchange tube body (1) is provided with a sealing mechanism (2), and the outer side surface of the heat exchange tube body (1) is provided with a protection mechanism (3); The sealing mechanism (2) comprises a driving part (21) and a sealing part (22); The sealing portion (22) is located on the right side of the driving portion (21); The protection mechanism (3) comprises a fixing portion (31) and a protection portion (32); The protection portion (32) is located on the outer side of the fixing portion (31).

2. The sealing device for a graphite heat exchange tube in a graphite heat exchanger according to claim 1, characterized in that: The driving part (21) comprises a handle (211), a box body (212) is arranged on the bottom surface of the handle (211), the handle (211) extends through the inner side surface of the box body (212), a first bevel gear (213) is arranged on the inner side surface of the box body (212), the top surface of the first bevel gear (213) is fixedly connected to the bottom end surface of the handle (211), a second bevel gear (214) is arranged on the outer end surface of the first bevel gear (213), the outer end surface of the second bevel gear (214) is meshingly connected to the outer end surface of the first bevel gear (213), a third bevel gear (215) is arranged on the right side of the second bevel gear (214), the outer end surface of the third bevel gear (215) is meshingly connected to the outer end surface of the first bevel gear (213).

3. The sealing device for a graphite heat exchange tube in a graphite heat exchanger according to claim 2, characterized in that: The sealing portion (22) comprises a rotating sleeve (221), the left end face of the rotating sleeve (221) is fixedly connected to the right end face of the third bevel gear (215), the inner side face of the rotating sleeve (221) is provided with a polished rod (222), the polished rod (222) extends through the second bevel gear (214) and the outer side of the rotating sleeve (221), the inner wall of the second bevel gear (214) is fixedly connected to the surface of the polished rod (222), the left end face of the polished rod (222) is connected to the inner left side face of the housing (212) through a bearing seat, and the surface of the polished rod (222) is fixedly connected to the inner left side face of the housing (212) through a bearing seat. The surface is rotatably connected to the inner wall of the rotating sleeve (221); the right end surface of the polished rod (222) is provided with a vertical plate (223); the left side surface of the vertical plate (223) is meshedly connected to the right end surface of the polished rod (222) through a second bearing seat; two semicircular toothed rings (224) are provided on the left side of the vertical plate (223); two gears (225) are provided on the left side of the two semicircular toothed rings (224); the inner wall of the left gear (225) is fixedly connected to the surface of the rotating sleeve (221); and the inner wall of the right gear (225) is fixedly connected to the right end surface of the polished rod (222).

4. The sealing device for a graphite heat exchange tube in a graphite heat exchanger according to claim 3, characterized in that: The outer end surfaces of the two gears (225) are meshedly connected with the tooth surfaces of the two semicircular gear rings (224).

5. The sealing device for a graphite heat exchange tube in a graphite heat exchanger according to claim 4, characterized in that: A door-shaped plate (226) is arranged outside the two gears (225), and six limiting columns are arranged on the inner side of each of the door-shaped plates (226). The outer end surfaces of the six limiting columns are fixedly connected to the inner side of the door-shaped plate (226), and the inner side of the six limiting columns is movably connected to the surfaces of six semicircular gear rings (224). The top surface of the door-shaped plate (226) is fixedly connected to the bottom surface of the vertical plate (223).

6. The sealing device for a graphite heat exchange tube in a graphite heat exchanger according to claim 5, characterized in that: The left side of the door-shaped plate (226) is fixedly connected to the right side of the box body (212).

7. The sealing device for a graphite heat exchange tube in a graphite heat exchanger according to claim 1, characterized in that: The fixing portion (31) comprises a protective sleeve (311), and two protective plates (312) are arranged on the inner side of the protective sleeve (311).

8. The sealing device for a graphite heat exchange tube in a graphite heat exchanger according to claim 7, characterized in that: The protection part (32) includes eight springs (321), and eight sliding bars (322) are arranged on the inner side surfaces of the eight springs (321). The eight sliding bars (322) extend through and extend to the outside of the protection sleeve (311). The surfaces of the eight sliding bars (322) are slidably connected to the inner wall of the protection sleeve (311), and the inner end surfaces of the eight sliding bars (322) are fixedly connected to the outer side surfaces of the two protection plates (312).

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