CN219549812U - Insulation structure for low-temperature pipeline in-out cold box - Google Patents
Insulation structure for low-temperature pipeline in-out cold box Download PDFInfo
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- CN219549812U CN219549812U CN202320382508.7U CN202320382508U CN219549812U CN 219549812 U CN219549812 U CN 219549812U CN 202320382508 U CN202320382508 U CN 202320382508U CN 219549812 U CN219549812 U CN 219549812U
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- cold box
- sealing plate
- sleeve
- temperature pipeline
- side sealing
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Abstract
The utility model provides a low temperature pipeline business turn over cold box insulation construction, it includes the cold box body, has offered an access on the cold box body, an intraductal sleeve pipe of having arranged of access, inserted a low temperature pipeline in the sleeve pipe, the parcel has the heat preservation outside low temperature pipeline, sleeve pipe both ends are sealed through the inside shrouding of cold box inside and the outside shrouding of cold box outside respectively, and inside packing has insulation material, and this insulation material is with the low temperature pipeline parcel of taking the heat preservation inside. The structure of the utility model avoids the cold energy loss of air separation equipment, reduces the energy consumption, simplifies the structure material, is easy to manufacture, process and install, has simple construction operation and accurate positioning, and provides firm and reliable technical support for large-scale air separation equipment.
Description
Technical Field
The utility model relates to the technical field of cold box heat insulation structures, in particular to a cold box heat insulation structure for a low-temperature pipeline.
Background
When the low-temperature pipeline leaves the space division cold insulation box, frost is often formed at the heat insulation interface of the pipeline and the wall of the cold box, and the loss of cold is generated, so that the energy consumption of equipment is increased. The heat-insulating structure for the low-temperature pipeline in and out of the cold box is designed for responding to the call of national energy conservation and emission reduction, reducing energy consumption and saving production cost for users.
The utility model is two types of structures, namely a structure of a steel pipeline cold outlet box and a structure of a nonferrous metal pipeline cold outlet box. Both types of structures comprise a heat preservation part and a sealing part, wherein the heat preservation part provides heat preservation for the pipeline; the sealing part is used for ensuring the sealing of the box body, avoiding the exposure of heat insulation materials inside and outside the structure from being damped to reduce the heat insulation performance and avoiding the leakage of sealing gas in the box body, and the difference of the sealing part is that the steel pipeline can be directly welded and sealed with the pipeline, and the nonferrous metal pipeline needs to be transited by nonferrous metal with the same material. The structure designed by the utility model avoids the cold energy loss of the air separation equipment, reduces the energy consumption, has simple material, is easy to manufacture, process and install, has simple construction operation and accurate positioning, and provides firm and reliable technical support for large-scale air separation equipment.
Disclosure of Invention
The utility model provides a low-temperature pipeline in-out cold box heat insulation structure which is simple in structure, convenient to use and stable in performance.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a low temperature pipeline business turn over cold box insulation construction, it includes the cold box body, has offered an access on the cold box body, an intraductal sleeve pipe of having arranged of access, inserted a low temperature pipeline in the sleeve pipe, the parcel has the heat preservation outside low temperature pipeline, sleeve pipe both ends are sealed through the inside shrouding of cold box inside and the outside shrouding of cold box outside respectively, and inside packing has insulation material, and this insulation material is with the low temperature pipeline parcel of taking the heat preservation inside.
As preferable: the sleeve is made of stainless steel, the inner side sealing plate and the outer side sealing plate are made of stainless steel plates, and the sleeve is welded and sealed with the inner side sealing plate and the outer side sealing plate.
As preferable: the sleeve is made of nonferrous metal, the inner side sealing plate and the outer side sealing plate are made of stainless steel plates, the sealing mode between the inner side sealing plate and the outer side sealing plate and the pipeline is welding between the nonferrous metal plates and the stainless steel plates which are made of the same material, and rubber pads are clamped between the nonferrous metal plates and the stainless steel plates.
As preferable: the heat insulation material is slag cotton or polyurethane foaming agent.
The beneficial effects of the utility model are as follows: the utility model meets the heat preservation requirement of various low-temperature medium pipelines in the working state, ensures the stable output of low-temperature products of air separation equipment, and has high safety and strong stability. The material is simple, the processing is easy, the manufacturing cost is low, and the whole production efficiency is improved. The construction operation is simple, the positioning is accurate, and a firm and reliable technical support is provided for large-scale low-temperature equipment.
Drawings
Fig. 1 is a first structural schematic diagram of the structure of the present utility model.
Fig. 2 is a second structural schematic diagram of the structure of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model is further described below with reference to the drawings and specific examples, which are not intended to be limiting. As shown in figure 1, a low-temperature pipeline business turn over cold box insulation construction, it includes cold box body 1, has offered a import and export 2 on cold box body 1, import and export 2 in arranging a sleeve pipe 3, inserted a low-temperature pipeline 4 in the sleeve pipe 3, the parcel has heat preservation 5 outside low-temperature pipeline 4, sleeve pipe 3 both ends are sealed through the inside shrouding 6 of cold box inside and the outside shrouding 7 of cold box outside respectively, and inside packing has insulation material 8, and this insulation material 8 wraps up low-temperature pipeline 4 in with heat preservation 5.
As shown in fig. 1, the sleeve 3 is made of stainless steel, and the inner sealing plate 6 and the outer sealing plate 7 are made of stainless steel plates, so that the sleeve 3 is sealed with the inner sealing plate 6 and the outer sealing plate 7 by welding.
As shown in fig. 2, the sleeve 3 is made of nonferrous metal, the inner sealing plate 6 and the outer sealing plate 7 are made of stainless steel plates, the nonferrous metal plates 9 and the stainless steel plates are welded together in the same sealing mode between the inner sealing plate 6 and the outer sealing plate 7 and the pipeline, a rubber pad 10 is clamped between the nonferrous metal plates 9 and the stainless steel plates, and the heat insulating material 8 is mineral cotton or polyurethane foaming agent.
The utility model adopts a welding mode for installation, is used for heat preservation of a cold preserving box of low-temperature pipeline inlet and outlet air separation equipment, avoids frosting at a heat preserving interface of a pipeline and a cold box wall, and is installed in the following sequence: the method comprises the steps of welding and fixing the sleeve and the inner sealing plate according to a drawing, forming holes on the cold box plate, welding the combined sleeve on the cold box plate, enabling the pipeline to penetrate through the inner sealing plate and be welded and fixed, filling heat-insulating materials, installing and fixing the outer sealing plate, sealing the installation gap by sealant, and finishing installation.
The utility model is two types of structures, namely a structure of a steel pipeline cold outlet box and a structure of a nonferrous metal pipeline cold outlet box. Both types of structures comprise a heat preservation part and a sealing part, wherein the heat preservation part provides heat preservation for the pipeline; the sealing part is used for ensuring the sealing of the box body, avoiding the exposure of heat insulation materials inside and outside the structure from being damped to reduce the heat insulation performance and avoiding the leakage of sealing gas in the box body, and the difference of the sealing part is that the steel pipeline can be directly welded and sealed with the pipeline, and the nonferrous metal pipeline needs to be transited by nonferrous metal with the same material. The structure designed by the utility model avoids the cold energy loss of the air separation equipment, reduces the energy consumption, has simple material, is easy to manufacture, process and install, has simple construction operation and accurate positioning, and provides firm and reliable technical support for large-scale air separation equipment.
The utility model selects proper welding rod and welding technique, which ensures the welding quality; all welding seams should be subjected to appearance inspection, and welding defects cannot exist; the welds were rated as grade I by the coloration test as per NB/T47013.5.
The preferred embodiments of the present utility model are provided only to help illustrate the present utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof. The above disclosure is only a few specific embodiments of the present utility model, but the present utility model is not limited thereto, and any changes that can be thought by those skilled in the art should fall within the protection scope of the present utility model.
Claims (4)
1. The utility model provides a low temperature pipeline business turn over cold box insulation construction, it includes the cold box body, has offered an import and export, its characterized in that on the cold box body: the inlet and outlet are internally provided with a sleeve, a low-temperature pipeline is inserted into the sleeve, the low-temperature pipeline is wrapped with a heat-insulating layer, two ends of the sleeve are respectively sealed through an inner sealing plate inside the cold box and an outer sealing plate outside the cold box, heat-insulating materials are filled in the sleeve, and the low-temperature pipeline with the heat-insulating layer is wrapped in the sleeve by the heat-insulating materials.
2. The cryogenic conduit access cold box insulation structure of claim 1, wherein: the sleeve is made of stainless steel, the inner side sealing plate and the outer side sealing plate are made of stainless steel plates, and the sleeve is welded and sealed with the inner side sealing plate and the outer side sealing plate.
3. The cryogenic conduit access cold box insulation structure of claim 1, wherein: the sleeve is made of nonferrous metal, the inner side sealing plate and the outer side sealing plate are made of stainless steel plates, the sealing mode between the inner side sealing plate and the outer side sealing plate and the pipeline is welding between the nonferrous metal plates and the stainless steel plates which are made of the same material, and rubber pads are clamped between the nonferrous metal plates and the stainless steel plates.
4. The cryogenic conduit access cold box insulation structure of claim 1, wherein: the heat insulation material is slag cotton or polyurethane foaming agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320382508.7U CN219549812U (en) | 2023-03-03 | 2023-03-03 | Insulation structure for low-temperature pipeline in-out cold box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320382508.7U CN219549812U (en) | 2023-03-03 | 2023-03-03 | Insulation structure for low-temperature pipeline in-out cold box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219549812U true CN219549812U (en) | 2023-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320382508.7U Active CN219549812U (en) | 2023-03-03 | 2023-03-03 | Insulation structure for low-temperature pipeline in-out cold box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219549812U (en) |
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2023
- 2023-03-03 CN CN202320382508.7U patent/CN219549812U/en active Active
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