RU206963U1 - Device for thermal insulation coating of pipelines - Google Patents

Abstract

The utility model relates to the industry of building materials for the manufacture of thermal insulation of pipelines, tanks, boilers, air ducts of any configuration from welded, threaded, metal and other structures and can be used in the field of mechanical engineering, railway transport and other industries. , on the surface of which a heat-insulating flexible element and a coating located above it are placed in a spiral. The heat-insulating flexible element is made in the form of a transparent hose with the possibility of shifting its spiral turns along the surface of the pipeline. A covering element in the form of a removable thin-walled transparent cylinder is mounted on top of the transparent hose. In this case, the transparent hose is equipped with a branch pipe. The technical result is - ensuring effective monitoring of the condition of pipelines, tanks, boilers, etc.; - periodic observation of their condition: the presence of leaks, including threaded connections, future fistulas in places of thickness defects, walls weeping at the welding site, etc .; - ensuring the conduct of scheduled technical inspections in order to timely identify defects in tightness and, accordingly, respond - repair; - the use of a cooling agent ensures the regulation of the thermal regime of cooling the surface of pipelines; - elimination of costs of leakage consequences, simplification of control, thereby saving the working environment, elimination of costs of leakage consequences, simplification of control, etc. 1 il.

Description

The utility model relates to the industry of building materials for the manufacture of thermal insulation of pipelines, tanks, boilers, air ducts of any configuration from welded, threaded, metal and other structures and can be used in the field of mechanical engineering, railway transport and other industries.

Known is a device for a heat-insulating coating comprising heat insulation, a pipeline, a spiral winding, a flexible element and a removable coating. (Patent RU 2447353. Method of applying thermal insulation to pipelines. Claimed on 06.04. 2010; publ. 10.04.2012 Bull. No. 10 )

In the known thermal insulation coating, cured polyurethane foam is used. Thermal insulation made of opaque materials does not allow detecting damage or fistulas in order to timely identify defects in tightness and, accordingly, respond - repair.

It is also known a device for heat-insulating coating of pipelines, containing a pipeline, on the surface of which a heat-insulating flexible element and a coating located above it are placed in a spiral. (Patent No. 927505. Device for the manufacture of heat-insulating cylinders. Declared 09.23.80, publ. 05.15.82. Bul. 18)

Thermal insulation, as a rule, is made of foamed and other opaque materials that do not allow detecting damage or fistulas in order to timely identify defects in tightness and, accordingly, respond - repair.

Development problem:

- ensuring effective monitoring of the condition of pipelines, tanks, boilers, etc .;

- periodic observation of their condition: the presence of leaks, including threaded connections, future fistulas in places of thickness defects, walls weeping at the welding site, etc .;

- ensuring the conduct of scheduled technical inspections in order to timely identify defects in tightness and, accordingly, respond - repair;

- the use of a cooling agent ensures the regulation of the thermal regime of cooling the surface of pipelines;

- eliminating the cost of leakage consequences, simplifying control, thereby saving the working environment, eliminating the cost of leakage consequences, simplifying control, etc.

The development problem is solved by the fact that in a device for a heat-insulating coating of pipelines, containing a pipeline, on the surface of which a heat-insulating flexible element and a coating located above it are placed in a spiral, the heat-insulating flexible element is made in the form of a transparent hose with the possibility of shifting its spiral turns along the surface of the pipeline, and the cover is made in the form of a removable thin-walled transparent cylinder, while the transparent hose is equipped with a branch pipe.

The figure shows a diagram of the proposed device.

The device for thermal insulation coating contains the surface of the pipeline 1 or other cylindrical object in need of thermal insulation. Transparent hose 2 is wound in a spiral onto the outer surface of pipeline 1 with a certain pitch and angle of winding. The cavity of the transparent hose is filled with a compressed agent such as air or water. On top of the transparent hose 2, a covering material is mounted in the form of a thin-walled transparent cylinder 3. Between the cylindrical surface of the pipeline and the thin-walled removable transparent cylinder 3, a space (gap) is created 4. In this case, the cavity of the transparent hose 2 is connected by a pipe 5 to a source 6 of a compressed agent, such as air or liquid ...

To effectively monitor the condition of pipelines, tanks, boilers, etc., it is necessary to periodically monitor their condition: the presence of leaks, including threaded connections, future fistulas in places of thickness defects, walls weeping at the welding site, etc. The most effective control is a visual inspection during routine technical inspections in order to timely identify defects in tightness and, accordingly, respond - repair.

The spiral-wound transparent flexible hose 2 allows its outer diameter to create the necessary gap (air chamber) between the outer surface of the pipeline and the transparent cylinder 3. The transparent cylinder 3, leaning on the spiral of the hose 2, creates the necessary air gap 4, which allows you to control the integrity (actual state) pipe surface without dismantling the thermal insulation.

The proposed device allows:

- protect pipeline 1 from temperature overheating, changes in cooling or heating;

- to stabilize the set temperature regime of controlled heat transfer to the environment thanks to the spiral air chamber 4;

- monitor the entire surface of the pipeline for potential signs of leakage due to the transparent outer cylinder of the thermal insulation coating;

- to make the necessary changes in the temperature parameters of the protected pipeline by supplying a compressed agent (for example, air or liquid) of a given temperature gradient to the spiral hose 2 by source 5.

Additional periodic supply of dried air into the spiral chamber 4 and passing through a layer of moisture-absorbing material, such as silica gel, eliminates sweating and moisture condensation on the outer surface of the pipeline 1 and the inner surface of the transparent cylinder 3. This provides optical transparency for visual and instrumental (photo and video ) control.

By changing the step of winding the transparent hose 2, it is possible to change the coefficient of temperature changes depending on the length of the pipeline 1. The flexibility of the hose allows it to move its turns along the surface of the pipeline when repairing a certain section of it.

To effectively monitor the condition of pipelines, tanks, boilers, etc., it is necessary to periodically monitor their condition: the presence of leaks, including threaded connections, future fistulas in places of thickness defects, walls weeping at the welding site, etc. The most effective control is a visual inspection during routine technical inspections in order to timely identify leakage defects and, accordingly, respond - repair.

A spiral wound transparent hose allows its outer diameter to create the necessary gap (air chamber) between the outer surface of the pipeline and the transparent cylinder. The transparent cylinder, resting on the spiral of the hose, creates the necessary air gap that allows you to inspect the pipe surface and control its integrity (actual state) without dismantling the thermal insulation.

Repair of pipelines due to the localization of future damage sites becomes more preventive - since a potential fistula betrays itself by changing the surface color, thereby saving in everything: the working environment, eliminating the costs of leakage consequences, simplifying control, etc.

To fix suspicious places close to emergency areas, it is proposed to stick colored marks on the transparent thermal insulation for review in order to plan repair and restoration work. The color of the stickers is the more bright red, the more dangerous the expected defect.

In the places where pipelines are attached to the bodies of shaped parts - elbows, couplings, tees, etc. - and transitions welded, crimped, on compounds, etc. - in all places of possible leaks, it is proposed to apply an indicator spot or glue a split ring made of non-combustible material impregnated with a reagent, which changes color in case of any violation of the tightness of the pipeline and its elements, at the joints. In this case, the search and photographic recording of deviations from the norm is simplified. Repair of pipelines due to the localization of future damage sites becomes more preventive - since a potential fistula betrays itself by changing the surface color, thereby saving in everything: the working environment, eliminating the costs of leakage consequences, simplifying control, etc.

The technical result is - to protect the pipeline from temperature overheating, changes in cooling or heating; - to stabilize the set temperature regime of controlled heat transfer to the environment thanks to the spiral-shaped air chamber; - monitor the entire surface of the pipeline for potential signs of leakage due to the transparent outer cylinder of the thermal insulation coating; - make the necessary changes in the temperature parameters of the protected pipeline by supplying a compressed agent (for example, air or liquid) to the spiral hose of a given temperature gradient.

Claims (1)

A device for heat-insulating coating of pipelines, containing a pipeline, on the surface of which a heat-insulating flexible element and a coating located above it are arranged in a spiral, characterized in that the heat-insulating flexible element is made in the form of a transparent hose with the possibility of shifting its spiral turns along the surface of the pipeline, and the coating is made in in the form of a removable thin-walled transparent cylinder, while the transparent hose is equipped with a branch pipe.

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