DE7521752U1 - Removable thermal insulation element in cassette form for nuclear plants - Google Patents

Description

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For the insulation of the weld seam areas that can be quickly dismantled and installed, particularly in nuclear power plants, e.g. on components, pipelines, etc. An insulating cassette was developed that meets these requirements. In order to achieve universal use, were two different types designed.

2. Construction

The construction of the insulating cassettes is shown in the drawings

No. looo / l for type I and No. 1000/2 for type II

shown. Basically, the design of the cassette is structured into a structural and an insulating section,

3. Description

3.1 Type I
3.1.1 Execution

The execution can be seen in detail from drawing no. Looo / l, The numbers in the description refer to the individual parts listed under "Legend".

The details are as follows:

No.1 lower angle frame made of Al for weight reasons. or suitable material manufactured, specifies the basic dimensions of the cassette.

Upper angle frame in the same design as 1

Spacer between 1 and 2 is used in addition to the measurement of the Kcffiettenhöhe (Insulation height) at the same time as a fastening element for 1, 2, 9 + 11. Detail in section Λ-Α visible.

3a Alternative version of the spacer made of angle or. Flat iron profile material. Provide with a riveted asbst or suitable insulating intermediate layer between the beveled webs to interrupt the heat flow.

Reinforcement bar for diagonal reinforcement of the cassette. Because of lower heat transfer made of VA or similar material and attached to 1 and 2 middle rivets. When using 3a from angle profile 4 can be omitted.

Cloth made of asbestos or glass fabric or similar suitable material encloses the side surfaces of the cassette.

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As shown in detail "E" and "F" in the drawing, it is attached using a

lower flat profile strips and

Upper flat profile strips by means of rivets or similar on 1 and 2

Reinforcement plate with 2 riveted. Should be especially with removable Cassettes transferring the weights acting at 12 out of stability considerations to 2.

Lower cover plate as the end of the cassette compared to the one to be isolated Part, optionally made in perforated sheet metal design and in different material quality. Connection either via 3 means Nut, as can be seen from section A-A, or via pop rivets or a suitable connection at 1.

10. Mineral wool filling as thermal insulation so firmly in the cavity of the constructive Section incorporated until the fabric bulges. This creates a tight seal between the insulating cassette and adjacent ones Areas, as shown in section B-B, achieved and the insulation effect optimally solved.

11. Upper cover sheet according to the requirements of the insulating surface made of suitable material. On the protruding part with deck bead provided, for the purpose of tight completion of the insulating jacket.

Mounting handle, especially for removable insulating cassettes, for better weight transfer and stability, attached via 11 to 8 fasteners.

3.1.2 Application examples

In addition to the variety of possible application examples, the drawing No. looo / l the insulation of the round and longitudinal seams on a container outlined. The insulating cassettes can be designed either removable or pivotable with hinge fastening. In the latter case a cassette frame is provided to support the weights on the fixed part, e.g. the container insulation, on which the cassette on the one hand is attached via hinges and on the other hand rests. See detail "D".

3.2 Type II

3.2.1 Execution

Further details of the design can be found in drawing no. Looo / 2. The numbers listed below refer to the individual parts numbered under "Legend".

As far as there are changes compared to item 3.1.1, these will be dealt with in more detail.

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Soundproofing - 3 - ⁷ 533Eutingen / Pforzhei

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No. 1 Lower profile frame primarily for bending radii made of round material and

The upper profile frame, otherwise made of angled profile in the case of bends made of flat material, delimits the outer dimensions of the cassette and indicates their shape.

Spacer welded at the ends with 1 and 2. Otherwise as described under item 3.1.1 no. 3a.

Cloth covers the cassette frame 1 and 2 and is on the underside about the

lower fabric fastening on lengthways 1 at corresponding intervals running round bars held.

Upper tissue attachment by means of lengthways and crossways to 2 stretched Wire or suitable threads, otherwise attached to 1 and 2, if necessary.

Mineral wool filling

- see description under 3.1.1 no. Io

Cover plate

- see under 3.1.1 No. 11

Mounting handle firmly connected to 8, if necessary, version 3.1.1 No. 12 in connection with 8

3.2.2 Examples of use

In drawing no. Looo / 2 some of the conceivable are in addition to the application examples mentioned under 3.1.2.

4.ο Profitability

Compared to conventional insulation with removable parts, e.g. with mattresses and a separate sheet metal jacket, if the insulating cassettes are used, as already mentioned under item 1, significant advantages. In particular, the mattress wear that usually occurs largely prevented in the event of repeated disassembly and assembly. Finally surrenders good amortization of the additional investment costs the insulation cassette in relation to the mattress insulation through the substantial saving of personnel and time in the case of repeat tests Plant parts within the reactor control area.

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Type: I.

End of leg

1 lower angle frame

2 Upper angle frame

3 spacer

ί stiffening bar

5 tissue cloth

6 Lower flat profile stiffeners \

7 Upper flat profile stiffeners !

6 reinforcement areas

9 Lower cover plate

10 Mineral wool filling Π Upper cover sheet 12 mounting handle

Type-. II

Legend

1 lower profile frame

2 Upper profile frame

3 spacer

4 tissue cloth

5 Lower CEV / ebetuch fastening

6 Upper tissue attachment

7 mineral wool filling

8 deck plate

9 assembly handle

Claims (4)

Protection claims 1. 0 ^ ^e ~ ^{unci remon} 't' ^: i- ^er T ^{:> ailes} heat insulation learn nt in cassette form for nuclear plants ^ "consisting of encased heat insulation material, characterized in that the heat insulation material is housed within a frame structure, and that the Thermal insulation material is pressed so firmly into an at least the end face of asbestos glass fabric or similar suitable material, existing envelope, so that the latter bulges outward on these adjoining end faces on adjacent thermal insulation elements. 2. Thermal insulation element according to claim 1, characterized in that that the envelope of the thermal insulation element facing and facing away from the surface to be insulated Pages consists of cover sheets. 3- Thermal insulation element according to claim 1, characterized in that the covering of the thermal insulation material consists of a cover sheet on the side facing away from the surface to be insulated. 4. Thermal insulation element according to claim 1, characterized that it is via a hinge fastening attached to a stationary insulation. · the surface to be insulated is designed to be pivotable.