Heat preservation device for corrugated pipe compensator of annealing furnace

Abstract

The utility model relates to the technical field of heat insulation of heat distribution pipelines, in particular to a heat insulation device of a corrugated pipe compensator of an annealing furnace, which comprises a casing and a corrugated pipe positioned in the casing, a first fixing pipe is fixed at one end of the corrugated pipe, a second fixing pipe is fixed at the other end of the corrugated pipe, and first glass wool is arranged between the corrugated pipe and the inner wall of the casing. A length-adjustable support is arranged between the first fixing pipe and the second fixing pipe and supports the side, close to the corrugated pipe, of the first glass wool, port connecting pipes are fixed to the ends, away from each other, of the first fixing pipe and the second fixing pipe, extending holes are formed in the two ends of the shell, and the port connecting pipes extend out of the extending holes. The periphery of the port connecting pipe is sleeved with a sleeve, second glass wool is fixed between the inner wall of the sleeve and the outer wall of the port connecting pipe, and a baffle is fixed to the outer wall of the end, inserted into the shell, of the sleeve. The corrugated expansion joint has the technical effects that the corrugated expansion joint is subjected to heat preservation, and the service life of the corrugated expansion joint is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal pipe insulation, in particular to a thermal insulation device for an annealing furnace bellows compensator. Background Art

[0002] Bellows compensators are widely used in the field of thermal pipes. They mainly utilize the effective expansion and contraction of the working body bellows to absorb the dimensional changes of pipelines, ducts, containers, etc. caused by thermal expansion and contraction, or to compensate for the axial, lateral and angular displacement of pipelines, ducts, containers, etc.

[0003] Currently, in factories, a layer of insulation cotton is wrapped around the outer surface of the corrugated compensator to insulate it. However, wrapping only one layer of insulation cotton has poor insulation effect. If the temperature difference between the inside and outside of the compensator is large, it will cause the compensator to elongate excessively, thereby reducing the compensator's service life. Utility Model Content

[0004] The embodiment of the utility model provides a heat preservation device for a bellows compensator of an annealing furnace, which has the technical effect of heat preservation of the bellows compensator and prolonging the service life of the bellows compensator.

[0005] The utility model provides an insulation device for an annealing furnace bellows compensator, which adopts the following technical solutions:

[0006] A thermal insulation device for an annealing furnace bellows compensator comprises a shell and a bellows located in the shell, a first fixed tube being fixed to one end of the bellows, a second fixed tube being fixed to the other end of the bellows, a first glass wool being arranged between the bellows and the inner wall of the shell, a length-adjustable bracket being arranged between the first fixed tube and the second fixed tube, the bracket supporting the side of the first glass wool close to the bellows, a port pipe being fixed to the ends of the first fixed tube and the second fixed tube that are away from each other, extension holes being provided at both ends of the shell, the port pipe extending from the extension holes, a sleeve being sleeved on the periphery of the port pipe, a second glass wool being fixed between the inner wall of the sleeve and the outer wall of the port pipe, a baffle being fixed on the outer wall of one end of the shell into which the sleeve is inserted.

[0007] Furthermore, a first support block is fixed on the outer wall of the first fixed tube, a second support block is fixed on the outer wall of the second fixed tube, and plug holes are provided on the first support block and the second support block. The bracket includes an L-shaped first connecting rod and a second connecting rod, one end of the first connecting rod is inserted into the plug hole of the first support block, one end of the second connecting rod is inserted into the plug hole of the second support block, a third connecting rod is fixed on the end of the second connecting rod close to the first connecting rod, and a connecting hole for the third connecting rod to be plugged in is provided on the end of the first connecting rod close to the second connecting rod.

[0008] Furthermore, a first support block is fixed on the outer wall of the first fixed tube, a second support block is fixed on the outer wall of the second fixed tube, and plug holes are provided on the first support block and the second support block. The bracket includes an L-shaped first connecting rod and a second connecting rod, one end of the first connecting rod is inserted into the plug hole of the first support block, one end of the second connecting rod is inserted into the plug hole of the second support block, a third connecting rod is fixed on the end of the second connecting rod close to the first connecting rod, and a connecting hole for the third connecting rod to be plugged in is provided on the end of the first connecting rod close to the second connecting rod.

[0009] Furthermore, a spring is provided in the connecting hole, and the spring is fixed between the third connecting rod and a hole wall of the connecting hole away from the second connecting rod.

[0010] Furthermore, a first magnet is fixed to the bottom of the plugging hole of the first supporting block, and a second magnet is fixed to one end of the first connecting rod inserted into the plugging hole.

[0011] Furthermore, the shell includes a first shell and a second shell, one side of the first shell is hinged to the second shell, and the other side of the first shell and the second shell is provided with a lock, and the first shell and the second shell are fixed by the lock.

[0012] Compared with the prior art, the present invention has the following technical effects:

[0013] The bellows is enclosed in a housing and wrapped with glass wool to provide excellent insulation. Furthermore, a bracket is provided to reduce the possibility of squeezing the bellows and protect them. The housing is divided into a first housing and a second housing, which are detachably connected to facilitate replacement of the bellows. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present invention, and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 To embody the three-dimensional Figure 1 ;

[0016] Figure 2 To embody the three-dimensional Figure 2 ;

[0017] Figure 3 A schematic diagram showing the internal structure of the housing of the present invention;

[0018] Figure 4 A schematic diagram showing the bellows and bracket of the present invention;

[0019] Figure 5 It is a schematic diagram of the spring and the first connecting component in the present invention.

[0020] Explanation of the accompanying drawings: 1. Shell; 11. First shell; 12. Second shell; 13. Lock; 14. Extension hole; 2. Bellows; 21. First fixed tube; 22. Second fixed tube; 23. Port tube; 3. Bracket; 31. First connecting rod; 311. Connecting hole; 32. Second connecting rod; 33. First support block; 34. Second support block; 35. Plug-in hole; 351. Spring; 36. Third connecting rod; 4. First connecting assembly; 41. First magnet; 42. Second magnet; 5. First glass wool; 6. Second glass wool; 7. Sleeve; 71. Baffle. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the schematic embodiments of the present invention and their description are used to explain the present invention, but are not intended to limit the present invention.

[0022] Reference Figure 1-Figure 5 A heat preservation device for a bellows compensator includes a housing 1 and a bellows 2, wherein the bellows 2 is located inside the housing 1. The housing 1 includes a first housing 11 and a second housing 12, one side of the first housing 11 and the second housing 12 are hinged, and a lock 13 is provided on the other side of the first housing 11 and the second housing 12, and the first housing 11 and the second housing 12 are fixed by the lock 13.

[0023] One end of the bellows 2 is fixedly connected to a first fixed tube 21, and the other end is fixedly connected to a second fixed tube 22. A port connector 23 is fixed to the side of the first and second fixed tubes 21, 22 that faces away from each other. Multiple brackets 3 are provided around the circumference of the bellows 2, installed between the first and second fixed tubes 21, 22.

[0024] Bracket 3 includes a first connecting rod 31 and a second connecting rod 32, both of which are L-shaped. A first support block 33 is fixed to the wall of the first fixed tube 21, and a second support block 34 is fixed to the wall of the second fixed tube 22. Each of the first support block 33 and the second support block 34 has a socket 35. One end of the first connecting rod 31 is inserted into the socket 35, and the socket 35 is provided with a first connecting assembly 4 for fixing the first connecting rod 31 and the first support block 33. The socket 35 on the second support block 34 is provided with a second connecting assembly for fixing the second connecting rod 32 to the second support block 34. The structure of the second connecting assembly is the same as that of the first connecting assembly 4.

[0025] The first connecting assembly 4 includes a first magnet 41 and a second magnet 42. The first magnet 41 is fixed to the bottom of the plug-in hole 35, and the second magnet 42 is fixed to the end of the first connecting rod 31. The first connecting rod 31 is inserted into the plug-in hole 35, and the first magnet 41 and the second magnet 42 are attracted and fixed. A connecting hole is provided on the side of the first connecting rod 31 close to the second connecting rod 32. A third connecting rod 36 is fixed on the side of the second connecting rod 32 close to the first connecting rod 31, and the third connecting rod 36 is inserted into the connecting hole 311. When the bellows 2 is extended or retracted, the third connecting rod 36 slides in the connecting hole 311. A spring 351 is provided in the connecting hole 311. One end of the spring 351 is fixed to the third connecting rod 36, and the other end of the spring 351 is fixed to the wall of the connecting hole 311.

[0026] A first glass wool 5 is disposed between the bracket 3 and the housing 1. The first glass wool 5 is arranged around the inner wall of the housing 1 to insulate the bellows 2. The first glass wool 5 is divided into two parts, the first part being fixed to the inner wall of the first housing 11, and the second part being fixed to the inner wall of the second housing 12. The bracket 3 provides some support for the first glass wool 5.

[0027] Both ends of the shell 1 are provided with extension holes 14, and the outer side of the port pipe 23 is sleeved and fixed with a second glass wool 6, and the outer side of the second glass wool 6 is sleeved and fixed with a sleeve 7. The sleeve 7 is inserted into the shell 1 from the extension hole 14, and a baffle 71 is fixed to the end of the sleeve 7 extending into the shell 1. The baffle 71 can prevent the sleeve 7 from escaping from the extension hole 14 on the shell 1.

[0028] The implementation principle of the thermal insulation device of a bellows compensator of the utility model is as follows: the bellows 2 is covered in a housing 1, and the bellows 2 is wrapped with a first glass wool 5, thereby insulating the bellows 2 with good thermal insulation effect. In addition, a bracket 3 is provided to reduce the possibility of the bellows 2 being squeezed, thereby protecting the bellows 2. The housing 1 is configured as a first housing 11 and a second housing 12, and the housing 1 is detachably connected to facilitate the replacement of the bellows 2.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A heat preservation device for an annealing furnace bellows compensator, characterized in that: The invention comprises a shell (1) and a bellows (2) located in the shell (1), wherein a first fixed tube (21) is fixed to one end of the bellows (2), and a second fixed tube (22) is fixed to the other end of the bellows (2), a first glass wool (5) is arranged between the bellows (2) and the inner wall of the shell (1), a length-adjustable bracket (3) is arranged between the first fixed tube (21) and the second fixed tube (22), and the bracket (3) supports the side of the first glass wool (5) close to the bellows (2), and a port pipe (23) is fixed to the ends of the first fixed tube (21) and the second fixed tube (22) that are away from each other, both ends of the shell (1) are provided with an extension hole (14), the port pipe (23) extends from the extension hole, the outer periphery of the port pipe (23) is sleeved with a sleeve (7), the second glass wool (6) is fixed between the inner wall of the sleeve (7) and the outer wall of the port pipe (23), and a baffle (71) is fixed to the outer wall of one end of the sleeve (7) inserted into the shell (1).

2. The heat preservation device for the annealing furnace bellows compensator according to claim 1, characterized in that: A first support block (33) is fixed on the outer wall of the first fixed tube (21), and a second support block (34) is fixed on the outer wall of the second fixed tube (22). Both the first support block (33) and the second support block (34) are provided with a plug-in hole (35). The bracket (3) includes an L-shaped first connecting rod (31) and a second connecting rod (32). One end of the first connecting rod (31) is inserted into the plug-in hole (35) of the first supporting block (33), and one end of the second connecting rod (32) is inserted into the plug-in hole (35) of the second supporting block (34). A third connecting rod (36) is fixed to one end of the second connecting rod (32) close to the first connecting rod (31), and a connecting hole (331) for plugging the third connecting rod (36) is provided at one end of the first connecting rod (31) close to the second connecting rod (32).

3. The heat preservation device for the annealing furnace bellows compensator according to claim 2, characterized in that: A spring (351) is provided in the connecting hole, and the spring (351) is fixed between the third connecting rod (36) and a hole wall of the connecting hole (331) away from the second connecting rod (32).

4. The heat preservation device for the annealing furnace bellows compensator according to claim 2 or 3, characterized in that: A first magnet (41) is fixed to the bottom of the insertion hole (35) of the first support block (33), and a second magnet (42) is fixed to one end of the first connecting rod (31) inserted into the insertion hole (35).

5. The heat preservation device for the bellows compensator of the annealing furnace according to claim 2, characterized in that: The housing (1) comprises a first housing (11) and a second housing (12); one side of the first housing (11) and the second housing (12) are hinged; the other sides of the first housing (11) and the second housing (12) are provided with a lock (13); the first housing (11) and the second housing (12) are fixed by the lock (13).

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