CN212203625U - Heat preservation and insulation device for nuclear power station - Google Patents

Abstract

The utility model relates to the technical field of special tools for nuclear power stations, and provides a heat preservation and insulation device for a nuclear power station, which comprises a supporting component, a heat preservation component, a supporting component and a shell; the supporting assembly comprises a plurality of first supporting pieces, a plurality of first fixing pieces, a plurality of first reinforcing ribs and a plurality of first connecting pieces; the first supporting piece is connected to the side wall of the nuclear power equipment and extends from one side of a welding line of the nuclear power equipment to the direction far away from the welding line, the first fixing piece is connected with the first supporting piece, one end of each first reinforcing rib is connected with the first fixing piece, and the other end of each first reinforcing rib is connected with the first connecting piece; the heat preservation assembly comprises a first heat preservation part and a second heat preservation part, the first heat preservation part wraps the first supporting part and the first fixing part, and the second heat preservation part is connected to the first reinforcing rib; the shell is sleeved on each first connecting piece, and the second heat-insulating pieces are filled between the shell and the nuclear power equipment. The device wraps the first supporting piece and the first fixing piece with the first heat-preserving piece to reduce heat conduction; the second heat preservation piece is connected with the first reinforcing rib, and is convenient to disassemble and assemble.

Description

Heat preservation and insulation device for nuclear power station

Technical Field

The utility model relates to a nuclear power station specialized tool technical field especially relates to a nuclear power station is with heat preservation heat-proof device.

Background

The heat preservation layer of the nuclear power equipment is used for preserving heat of the nuclear power equipment, so that heat loss is prevented, economy is reduced, and meanwhile, the environmental temperature of a system equipment workshop is also reduced. In order to ensure normal work, weld joints of the island steam-water separation reheating equipment need to be maintained regularly. At present, a mode of puncturing heat insulation cotton by using a hook nail is adopted to wrap a heat insulation layer on island steam-water separation reheating equipment, however, the heat insulation cotton cannot be reused after being punctured and damaged, and after a welding line is maintained, new heat insulation cotton needs to be used to wrap the heat insulation cotton again, so that a great amount of waste of the heat insulation cotton is caused; when the heat-insulating layer is disassembled and assembled, the heat-insulating broken wadding flies in the sky, a large amount of dust is generated, and the health of constructors is influenced; moreover, after the heat preservation cotton is damaged, a large gap is easily generated, and the temperature of the outer surface of the heat preservation layer is overhigh.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a heat preservation and insulation apparatus for a nuclear power plant, which has a simple structure and an excellent heat preservation effect.

The utility model provides a nuclear power station is with heat preservation heat-proof device, installs on nuclear power equipment, nuclear power equipment sets up the welding seam, nuclear power station is with heat preservation heat-proof device includes:

the supporting assembly comprises a plurality of first supporting pieces, a plurality of first fixing pieces, a plurality of first reinforcing ribs and a plurality of first connecting pieces; each first supporting piece is connected to the side wall of the nuclear power equipment, the first supporting pieces extend from one side of the welding line to the direction far away from the welding line, the first fixing piece is connected with each first supporting piece, one end of each first reinforcing rib is connected with the first fixing piece, and the other end of each first reinforcing rib is connected with the first connecting piece;

the heat insulation assembly comprises a first heat insulation piece and a second heat insulation piece, the first support piece and the first fixing piece are wrapped by the first heat insulation piece, and the second heat insulation piece is connected to the first reinforcing rib; and

the shell is sleeved on each first connecting piece, and the second heat-insulating piece is filled between the shell and the nuclear power equipment.

The heat preservation and insulation device for the nuclear power station wraps the first support piece and the first fixing piece by the first heat preservation piece, so that heat conduction is reduced; connect first strengthening rib with second heat preservation piece, easy dismounting, circulated use. The heat preservation and insulation device for the nuclear power station has the advantages of firm structure and good heat preservation effect.

In one embodiment, the included angle between the first reinforcing rib and the first fixing part is 20-70 degrees.

In one embodiment, the included angle between the first reinforcing rib and the first fixing piece is 45 degrees.

In one embodiment, the first supporting pieces are arranged at intervals along the axial direction of the nuclear power equipment; the first fixing pieces are arranged at intervals along the circumferential direction of the nuclear power equipment.

In one embodiment, the first support member is arc-shaped and is connected to the circumference of the nuclear power equipment.

In one embodiment, the support assembly further comprises a plurality of second support members, a plurality of second fixing members, a plurality of second reinforcing ribs and a plurality of second connecting members; each second supporting piece is connected to the outer wall of the nuclear power equipment, the second supporting pieces extend from one side of the welding line to the direction far away from the welding line, and the first supporting pieces and the second supporting pieces are arranged in a one-to-one correspondence manner; the second fixing piece is connected with each second supporting piece, one end of each second reinforcing rib is connected with the second fixing piece, and the other end of each second reinforcing rib is connected with the second connecting piece.

In one embodiment, the support assembly further includes a plurality of third supports, and two ends of each third support are respectively connected to the first support and the second support on two sides of the weld.

In one embodiment, the heat-insulating assembly further comprises a third heat-insulating member, and the third heat-insulating member is arranged between the adjacent third supporting members.

In one embodiment, the supporting assembly further includes a plurality of first stoppers and a plurality of second stoppers; each first limiting part and the second limiting part are arranged along the circumferential direction of the nuclear power equipment respectively, the first limiting parts correspond to the second limiting parts one to one, the first limiting parts are connected with the first connecting pieces, and the second limiting parts are connected with the second connecting pieces.

In one embodiment, the supporting assembly further includes a plurality of third limiting members, and two ends of each of the third limiting members are respectively connected to the first limiting member and the second limiting member on two sides of the welding seam; the shell is sleeved on each of the first limiting part, the second limiting part and the third limiting part.

Drawings

Fig. 1 is an assembly structure diagram of a thermal insulation device for a nuclear power station according to an embodiment of the present invention;

FIG. 2 is a sectional view of the thermal insulation apparatus for a nuclear power plant shown in FIG. 1;

fig. 3 is an enlarged view of a portion of a circle a of the thermal insulation apparatus for a nuclear power plant shown in fig. 2.

Reference is made to the accompanying drawings in which:

a nuclear power plant heat-insulating device 100;

the heat insulation structure comprises a supporting assembly 10, a first supporting piece 11, a first fixing piece 12, a first reinforcing rib 13, a first connecting piece 14, a second supporting piece 15, a second reinforcing rib 16, a third supporting piece 17, a first limiting piece 18, a third limiting piece 19, a heat insulation assembly 20, a first heat insulation piece 21, a second heat insulation piece 22, a third heat insulation piece 23, a fourth heat insulation piece 24, a shell 30, a first shell 31, a second shell 32, a third shell 33, nuclear power equipment 90 and a welding line 91.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When the number of an element is referred to as "a plurality," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, in order to illustrate the thermal insulation apparatus 100 for a nuclear power station according to an embodiment of the present invention, the thermal insulation apparatus 100 is mounted on a nuclear power device 90, the nuclear power device 90 is provided with a welding seam 91, the thermal insulation apparatus 100 for a nuclear power station includes a support component 10, a thermal insulation component 20 and a housing 30, the thermal insulation component 20 includes a first thermal insulation member 21 and a second thermal insulation member 22; the heat preservation and insulation device 100 for the nuclear power station wraps the first heat preservation part 21 on the support component 10, so that heat conduction is reduced; the second heat preservation part 22 is connected with the support component 10, so that the assembly and disassembly are convenient, and the recycling can be realized.

As shown in fig. 1, in the present embodiment, the supporting assembly 10 includes a plurality of first supporting members 11, a plurality of first fixing members 12, a plurality of first reinforcing ribs 13, and a plurality of first connecting members 14; each first supporting piece 11 is connected to the side wall of the nuclear power equipment 90, the first fixing piece 12 is connected to each first supporting piece 11, one end of each first reinforcing rib 13 is connected to the first fixing piece 12, and the other end of each first reinforcing rib is connected to the first connecting piece 14; optionally, the first supporting members 11 are arc-shaped, the first supporting members 11 are connected to the circumference of the nuclear power equipment 90, and the first supporting members 11 are arranged at intervals along the axial direction of the nuclear power equipment 90; the first fixing pieces 12 are straight bars, the first fixing pieces 12 are coaxial with the nuclear power equipment 90, and the first fixing pieces 12 are arranged at intervals along the circumferential direction of the nuclear power equipment 90. Further, the first support 11 extends from the side of the weld seam 91 in a direction away from the weld seam 91. In order to reduce heat dissipation, the included angle between the first reinforcing rib 13 and the first fixing piece 12 is 20-70 degrees; optionally, the included angle between the first reinforcing rib 13 and the first fixing member 12 is 45 degrees, so as to prevent heat from directly passing through the first connecting member 14. Further, the first reinforcing rib 13 and the first fixing member 12 are at an angle of 45 degrees in a direction away from the weld seam 91. In one embodiment, the supporting assembly 10 further includes a plurality of second supporting members 15, a plurality of second fixing members (not shown), a plurality of second reinforcing ribs 16 and a plurality of second connecting members (not shown); each second supporting piece 15 is connected to the outer wall of the nuclear power equipment 90, the second supporting pieces 15 extend from one side of the welding seam 91 to the direction far away from the welding seam 91, and the first supporting pieces 11 and the second supporting pieces 15 are arranged in a one-to-one correspondence manner; the second fixing member is connected to each second supporting member 15, and one end of each second reinforcing rib 16 is connected to the second fixing member and the other end is connected to the second connecting member. The second supporting member 15 and the first supporting member 11, the second fixing member and the first fixing member 12, the second reinforcing rib 16 and the first reinforcing rib 13, and the second connecting member and the first connecting member 14 are similar in structure, and will be described in detail below.

In an embodiment, the support assembly 10 further includes a plurality of third supporting members 17, and two ends of each third supporting member 17 are respectively connected to the first supporting member 11 and the second supporting member 15 on two sides of the welding seam 91. Alternatively, the end of the first support 11 away from the weld seam 91 is fixed to the end of the second support 15 away from the weld seam 91 by a bolt. The supporting assembly 10 further includes a plurality of first position-limiting members 18 and a plurality of second position-limiting members (not shown); each first limiting member 18 and each second limiting member are respectively arranged along the circumferential direction of the nuclear power equipment 90, the first limiting members 18 correspond to the second limiting members one by one, the first limiting members 18 are connected to each first connecting member 14, and the second limiting members are connected to each second connecting member 15. The supporting assembly 10 further includes a plurality of third limiting members 19, and two ends of each third limiting member 19 are respectively connected to the first limiting member 18 and the second limiting member at two sides of the welding seam 91. The supporting assembly 10 further includes a first stopper (not shown) and a second stopper (not shown); the two ends of the first stopper are respectively connected to the first supporting member 11 and the first limiting member 18 at the end of the supporting assembly 10, and the two ends of the second stopper are respectively connected to the second supporting member 15 and the second limiting member at the end of the supporting assembly 10. In order to ensure firm connection, the first supporting member 11, the first fixing member 12, the first connecting member 14, the second supporting member 15, the second fixing member, the second connecting member, the third supporting member 17, the first limiting member 18, the second limiting member and the third limiting member 19 are all flat steels with the thickness of 5mm, and the first reinforcing rib 13 and the second reinforcing rib 16 are carbon steel rods with the diameter of 10 mm.

Referring to fig. 2 and 3, the heat-insulating assembly 20 includes a first heat-insulating member 21 and a second heat-insulating member 22, the first heat-insulating member 21 wraps the first supporting member 11 and the first fixing member 12, so as to reduce a direct contact area with the nuclear power equipment 90, and reduce heat conduction efficiency by changing direct contact into indirect contact, thereby reducing heat on an outer surface of the second heat-insulating member 22, and the second heat-insulating member 22 is connected between two adjacent first supporting members 11; optionally, the second insulating element 22 is connected to the first reinforcing bar 13 so as to be fixed against movement. In one embodiment, the insulating assembly 20 further comprises a third insulating member 23, the third insulating member 23 being disposed between adjacent third supporting members 17 so as to repair the weld 91. Further, the heat-insulating assembly 20 further includes a fourth heat-insulating member 24, the fourth heat-insulating member 24 is received between two adjacent second supporting members 15, and the fourth heat-insulating member 24 is connected to the second reinforcing rib 16. The first heat preservation part 21 is made of heat insulation refractory materials, the second heat preservation part 22 and the fourth heat preservation part 24 are both irradiation-resistant glass cotton bags, and the third heat preservation part 23 is an irradiation-resistant glass cotton quilt. When the welding seam 91 is maintained, only the third heat preservation piece 23 needs to be disassembled, and the third heat preservation piece 23 can be recycled; the second heat preservation member 22 and the fourth heat preservation member 24 do not need to be disassembled, and the workload is reduced.

In one embodiment, the housing 30 is disposed around each of the first connecting members 14; the second insulating member 22 is filled between the outer shell 30 and the nuclear power plant 90. Optionally, the housing 30 is sleeved on each of the first limiting member 18, the second limiting member and the third limiting member 19. Further, the housing 30 includes a plurality of first shells 31, a plurality of second shells 32 and a plurality of third shells 33, the first shells 31 connect two adjacent first limiting members 18, the second shells 32 connect two adjacent second limiting members, and the third shells 33 connect two adjacent third limiting members 19. When repairing the weld joint 91, it is only necessary to remove the third housing 33.

By using the heat preservation and insulation device 100 for the nuclear power station, a first support part 11, a first fixing part 12, a first reinforcing rib 13, a first connecting part 14 and a first limiting part 18 are welded into a first framework, a second support part 15, a second fixing part, a second reinforcing rib 16, a second connecting part and a second limiting part are welded into a second framework, and then a first heat preservation part 21 is respectively wrapped on the first support part 11, the first fixing part 12, the second support part 15 and the second fixing part; then, the first framework and the second framework are respectively installed on the nuclear power equipment 90, one ends of the first supporting piece 11 and the second supporting piece 15 are fixed together by bolts, the other end of the first supporting piece is welded with the third supporting piece 17, and two ends of the third limiting piece 19 are respectively welded with the first limiting piece 18 and the second limiting piece; then, the second heat preservation member 22 is hung on the two adjacent first reinforcing ribs 13, the fourth heat preservation member 24 is hung on the two adjacent second reinforcing ribs 16, the third heat preservation member 23 is hung on the adjacent third supporting member 17, finally, the first shell 31 is connected with the two adjacent first limiting members 18, the second shell 32 is connected with the two adjacent second limiting members, and the third shell 33 is connected with the two adjacent third limiting members 19. When the welding seam 91 is maintained, the third shell 33 only needs to be dismantled, the third heat-insulating part 23 is taken down, and the third heat-insulating part 23 can be recycled, so that dust pollution is reduced, and deformation of the heat-insulating part in the dismounting process is reduced; the second heat preservation member 22 and the fourth heat preservation member 24 do not need to be disassembled, and the workload is reduced. The temperature of the outer surface of the heat preservation part is reduced through the heat preservation and insulation device 100 for the nuclear power station, so that the heat preservation effect is more stable, the cost of heat preservation maintenance is reduced, and the waste of heat preservation materials is reduced.

The utility model discloses a heat preservation and insulation device 100 for nuclear power station, which wraps the first support member 11 and the first fixing member 12 with the first heat preservation member 21, and reduces heat conduction; the second heat preservation part 22 is connected with the first reinforcing rib 13, so that the heat preservation device is convenient to disassemble and assemble and can be recycled. The heat preservation and insulation device 100 for the nuclear power station has a firm structure and a good heat preservation effect.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a nuclear power station is with heat preservation heat-proof device, installs on nuclear power equipment, nuclear power equipment sets up the welding seam, its characterized in that, nuclear power station is with heat preservation heat-proof device includes:

the supporting assembly comprises a plurality of first supporting pieces, a plurality of first fixing pieces, a plurality of first reinforcing ribs and a plurality of first connecting pieces; each first supporting piece is connected to the side wall of the nuclear power equipment, the first supporting pieces extend from one side of the welding line to the direction far away from the welding line, the first fixing piece is connected with each first supporting piece, one end of each first reinforcing rib is connected with the first fixing piece, and the other end of each first reinforcing rib is connected with the first connecting piece;

the heat insulation assembly comprises a first heat insulation piece and a second heat insulation piece, the first support piece and the first fixing piece are wrapped by the first heat insulation piece, and the second heat insulation piece is connected to the first reinforcing rib; and

the shell is sleeved on each first connecting piece, and the second heat-insulating piece is filled between the shell and the nuclear power equipment.

2. The heat preservation and insulation device for the nuclear power plant as recited in claim 1, wherein an included angle between the first reinforcing rib and the first fixing member is 20 degrees to 70 degrees.

3. The heat preservation and insulation device for the nuclear power plant as claimed in claim 2, wherein the first reinforcing rib and the first fixing member form an included angle of 45 degrees.

4. The thermal insulation device for the nuclear power plant according to claim 1, wherein the first supporting members are arranged at intervals in an axial direction of the nuclear power plant; the first fixing pieces are arranged at intervals along the circumferential direction of the nuclear power equipment.

5. The thermal insulation device for the nuclear power plant according to claim 1, wherein the first support member is arc-shaped and is connected to the circumference of the nuclear power plant.

6. The apparatus according to claim 1, wherein the support assembly further comprises a plurality of second support members, a plurality of second fixing members, a plurality of second reinforcing ribs, and a plurality of second connecting members; each second supporting piece is connected to the outer wall of the nuclear power equipment, the second supporting pieces extend from one side of the welding line to the direction far away from the welding line, and the first supporting pieces and the second supporting pieces are arranged in a one-to-one correspondence manner; the second fixing piece is connected with each second supporting piece, one end of each second reinforcing rib is connected with the second fixing piece, and the other end of each second reinforcing rib is connected with the second connecting piece.

7. The apparatus according to claim 6, wherein the support assembly further comprises a plurality of third support members, and both ends of each of the third support members are connected to the first support member and the second support member on both sides of the weld, respectively.

8. The apparatus according to claim 7, wherein the heat-retaining member further includes a third heat-retaining member provided between the adjacent third support members.

9. The apparatus according to claim 6, wherein the support assembly further comprises a plurality of first stoppers and a plurality of second stoppers; each first limiting part and the second limiting part are arranged along the circumferential direction of the nuclear power equipment respectively, the first limiting parts correspond to the second limiting parts one to one, the first limiting parts are connected with the first connecting pieces, and the second limiting parts are connected with the second connecting pieces.

10. The thermal insulation device for the nuclear power plant according to claim 9, wherein the support assembly further comprises a plurality of third limiting members, and both ends of each third limiting member are respectively connected to the first limiting member and the second limiting member on both sides of the weld; the shell is sleeved on each of the first limiting part, the second limiting part and the third limiting part.

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