RU200573U1 - DEVICE FOR STORING, FEEDING AND TRANSPORTING CRYOGENIC PRODUCTS - Google Patents

Abstract

The claimed utility model relates to the field of cryogenic technology and concerns the design and operation of a device for storing, supplying and transporting cryogenic products to consumers, which includes an outer shell, an inner vessel, an adsorber, filling and drainage pipelines and a vacuum-multilayer thermal insulation located in the cavity between the inner surface shell and the outer surface of the inner vessel with the formation of a gap from each of the above surfaces. The vacuum multilayer thermal insulation is divided into the insulation of the inner vessel and the insulation of the adsorber, the latter being overlapped on the insulation of the inner vessel to form a channel for the passage of adsorbed gases. The utility model provides a decrease in the volatility of the cryogenic product and reduces the time of stabilization of the residual pressure in the vacuum insulation cavity. 1 wp f-ly, 2 dwg

Description

The claimed utility model relates to the field of cryogenic technology and concerns the design and operation of a device for storing, supplying and transporting cryogenic products to consumers.

One of the problems in the art is the loss of a cryogenic product from evaporation due to the ineffective operation of thermal insulation. The effectiveness of thermal insulation depends on the residual pressure in the insulation cavity. The thicker the thermal insulation, the longer the pressure stabilization time in the thermal insulation layers and, accordingly, the greater the evaporation loss of the cryogenic product.

A device for storage and supply of cryogenic products is known from the prior art (Handbook on the physical and technical fundamentals of cryogenics edited by M.P. Malkov, M .: Energoatomizdat, 1985, page 352, Fig. 15.3, 15.4), containing an internal container, covered with vacuum-multilayer thermal insulation, enclosed in a vacuum-tight casing, adsorbent, filling and drainage pipelines.

A device for storing food is known (RF patent No. 2188369, publ. 27.08.2002), which contains a double-walled container, a perforated screen with thermal insulation attached to it and an adsorbent. Visors are installed between the screen and the thermal insulation opposite the perforation holes, which form gaps between the thermal insulation and the screen and are attached to the surface of the latter.

The disadvantage of the known device is the high labor intensity of manufacturing and low efficiency of the thermal insulation, since the residual gases from the volume of the vacuum insulating cavity rush into the region of reduced pressure, that is, into the cavity containing the adsorbent

(adsorber), and the absence of communication of cavities between the outer wall of the inner container and the thermal insulation and the inner wall of the outer shell and the thermal insulation significantly increases the resistance to the penetration of residual gases into the cavity of the adsorber.

The closest in terms of the totality of essential features to the claimed technical solution is the invention "Device for storage and supply of cryogenic products" (RF patent No. 2183301, publ. 30.10.2000), contains an internal container with an adsorbent located on its outer surface, enclosed in a vacuum - a tight casing. Vacuum multilayer thermal insulation is located in the cavity between the inner surface of the casing and the outer surface of the inner container with the formation of gaps from each of the mentioned surfaces. In the vacuum-multilayer thermal insulation channels are laid, communicating between the said gaps and consisting of sections located in different planes, while the walls of the channels are made of a low heat-conducting material.

The technical solution presented in the prototype makes it possible to reduce the resistance of the vacuum-multilayer thermal insulation to the flow of adsorbed gases, but it is labor-intensive due to the need to manufacture and correct installation of special channels.

The objective of this utility model is to reduce the time of stabilization of the residual pressure in the vacuum insulating cavity after filling the container with a cryogenic product.

The technical result is a decrease in the volatility of a cryogenic product, as well as a decrease in labor intensity and material costs.

The specified technical result in the implementation of the claimed utility model is achieved by the fact that in a device for storage, supply and transportation of cryogenic products, including an outer shell, an inner vessel, an adsorber, filling and drainage pipelines, and

vacuum-multilayer thermal insulation located in the cavity between the inner surface of the shell and the outer surface of the inner vessel with the formation of a gap from each of the mentioned surfaces, where, according to the claimed utility model, the vacuum-multilayer thermal insulation is divided into the insulation of the inner vessel and the insulation of the adsorber, and the insulation of the adsorber is laid overlapping the insulation of the inner vessel with the formation of a channel for the passage of adsorbed gases.

The main distinguishing feature of the claimed utility model from the prototype is the separation of the vacuum-multilayer thermal insulation into the insulation of the inner vessel and the insulation of the adsorber, the latter being overlapped on the insulation of the inner vessel with the formation of a channel for the passage of adsorbed gases, which is ensured by laying the adsorber insulation over the transverse strips.

This design makes it possible to reduce the complexity of manufacturing the product due to the absence of the need to lay channels, for example, from corrugated pipelines in different planes. The wall of the adsorber is made of a perforated or woven material, on which a fine-mesh material (for example, cloth or mesh) is fixed, located on the side of the adsorber cavity. The perforated or woven fabric ensures the retention and uniform distribution of the adsorbent in the adsorber, and the cross-sectional area of the holes of the material affects the resistance to the flow of adsorbed gases. The placement of fine-mesh material from the side of the adsorber cavity excludes sifting of the adsorbent through the holes in the wall of the adsorber. The channel between the vacuum-multilayer thermal insulation and the outer surface of the adsorber is ensured by laying the adsorber insulation over the transverse strips, and the ends of the strips can extend beyond the side walls of the adsorber, which will increase

cross-sectional area of the channel between the adsorber insulation and the inner vessel insulation. The crossbars can be made of hollow pipes. This design does not allow the insulation layers to adhere to the wall of the adsorber and forms a gap for the unhindered penetration of adsorbed gases.

In the process of analyzing the state of the art, including a search for patent and scientific and technical sources of information containing information about the analogues of the claimed utility model, the applicant did not find an analogue characterized by features similar to the essential features of the claimed utility model. Consequently, the claimed utility model meets the "novelty" condition.

The essence of the utility model is illustrated by drawings.

FIG. 1 - device for storage, supply and transportation of cryogenic products;

FIG. 2 - View А-А - longitudinal section of the channel.

The device for storage, supply and transportation of cryogenic products includes an outer shell 1, an inner vessel 2, an adsorber 3 and a vacuum multilayer thermal insulation located in the cavity between the inner surface of the shell and the outer surface of the inner vessel with the formation of a gap from each of the said surfaces. Vacuum-multilayer thermal insulation consists of the insulation of the inner vessel 4 and the insulation of the adsorber 5, which is overlapped on the insulation of the vessel over the transverse strips 6, the ends of which can go beyond the side walls of the adsorber (type A-A). This forms a channel 7 for the passage of adsorbed gases. The wall of the adsorber 8 is made of a perforated material, on which fine-mesh material 9 is fixed, located on the side of the adsorber cavity.

Currently, a device for storage, supply and transportation of cryogenic products to consumers has been developed

design documentation and a prototype that successfully passed a set of tests.

Claims (2)

1. A device for storage, supply and transportation of cryogenic products, including an outer shell, an inner vessel, an adsorber, filling and drainage pipelines and a vacuum-multilayer thermal insulation located in the cavity between the inner surface of the shell and the outer surface of the inner vessel with the formation of a gap with each of the mentioned surfaces, characterized in that the vacuum-multilayer thermal insulation is divided into the insulation of the inner vessel and the insulation of the adsorber, and the insulation of the adsorber is overlapped on the insulation of the inner vessel to form a channel for the passage of the adsorbed gas. 2. A device according to claim 1, characterized in that the channel for the passage of the adsorbed gas is provided by laying the adsorber insulation over the transverse strips.

Images