CN207687665U - A cryogenic container for storing and transporting cryogenic liquids - Google Patents

Abstract

The utility model discloses a low-temperature container for storing and transporting low-temperature liquid, which is characterized in that it comprises: a container body, wherein the container body includes an outer cylinder and an inner cylinder; and at least one supporting component, wherein The support assembly is arranged inside the container body to support the inner cylinder connected to the outer cylinder, and there is an accommodation space between the outer cylinder and the inner cylinder, and the accommodation space An anti-rotation support is included.

Description

A cryogenic container for storing and transporting cryogenic liquids

technical field

The utility model belongs to the field of low-temperature engineering and low-temperature technology, in particular to a low-temperature container for storing and transporting low-temperature liquid. Further, the cryogenic container of the present invention has a heat-insulating and supporting stable integral structure, which is suitable for use inside the cryogenic container.

Background technique

With the continuous development of cryogenic technology, the fields of cryogenic liquid application are becoming more and more extensive, and the demand for cryogenic storage and transportation equipment in all walks of life is also increasing. At present, the equipment used for cryogenic liquid storage and transportation at home and abroad mainly includes cryogenic tanks for cryogenic containers, cryogenic tank trucks, and cryogenic insulating gas cylinders. A traditional cryogenic container mainly includes an outer shell and an inner container installed in the outer shell through a supporting structure. Among them, the support structure mostly adopts eight-point support structure (that is, eight fiberglass supports), traditional two-point support (that is, two fiberglass supports at the end of the head), pull belt structure, boom structure, sling structure, etc. In the heat insulation support of cryogenic vessels, the eight-point support structure is currently widely used by most cryogenic vessel manufacturers because of its convenient installation and manufacture. Due to its large heat leakage, it is difficult to achieve high heat insulation performance requirements. (such as long-distance transportation or liquid hydrogen, liquid helium); the traditional two-point support has six support structures less than the eight-point support, and its thermal insulation performance has been greatly improved, but it is difficult to manufacture and increases manufacturing cost.

Chinese Patent Publication No. CN105314294A discloses a low-temperature container, a low-temperature tank container and a low-temperature tank car, including an outer shell and an inner container arranged in the outer shell through a support assembly, and the outer shell includes a cylindrical shell body and two ends of the shell body The two outer heads, the inner container includes a cylindrical inner container body and two inner heads arranged at both ends of the inner container body. Wherein the support assembly includes two transverse support structures and two longitudinal support structures. The two lateral support structures are relatively fixed on the interlayer between the outer shell body and the inner container body. Two longitudinal support structures are respectively arranged between the outer head and the inner head at the end, and the centerlines of the two longitudinal support structures are on the same line as the central axis of the inner container or are in line with the inner container parallel to the central axis of the cryogenic container, and the longitudinal support structure can be stretched longitudinally along the cryogenic container. However, through the arrangement of four supporting structures, this structure has large heat leakage, and its concentricity and straightness requirements and other manufacturing technical requirements are relatively high.

With the increasing competition in the market and the higher and higher requirements of users, it is a problem that all enterprises need to consider on the premise of satisfying the strength and thermal insulation performance, reducing the manufacturing cost and improving the performance of the product. The utility model patent adopts a glass-steel combined support structure, which can well solve the problems of low-temperature heat insulation performance and manufacturing difficulty.

Utility model content

One purpose of this utility model is to solve the defects of low-temperature containers in the prior art, and provide a low-temperature container for storing and transporting low-temperature liquids, which has a heat-insulating and stable overall structure support assembly, and is suitable for use inside the low-temperature container.

Another object of the present invention is to provide a cryogenic container for storing and transporting cryogenic liquids, the cryogenic container has an inner cylinder and an outer cylinder, the inner cylinder has a support assembly, and the support assembly is connected to the outer cylinder. The contact area of the container is small, so that the heat leakage of the cryogenic container can be reduced, so as to obtain excellent thermal insulation performance.

Another object of the present utility model is to provide a cryogenic container for storing and transporting cryogenic liquids. The overall stability of the support assembly is improved in the state of use, and the manufacture of the support assembly is relatively simple, and it is easy to ensure that the inside, The concentricity and straightness of the outer cylinder reduce the difficulty of manufacturing the container.

Another object of this utility model is to provide a cryogenic container for storing and transporting cryogenic liquids. Through the structure of three support components, the number of support points is reduced while ensuring the support strength between the outer cylinder and the inner cylinder. Therefore, the heat transfer from the inner cylinder to the outer cylinder is reduced, especially the outer cylinder and the inner cylinder are equipped with heat insulation structures, which further reduces the heat transfer.

Another object of the present utility model is to provide a low-temperature container for storing and transporting low-temperature liquids. An expansion joint is provided to adapt to the dimensional change of the inner cylinder caused by thermal expansion and contraction after filling the low-temperature liquid. Avoid damage due to thermal expansion and contraction between the inner container and the outer shell, which is beneficial to prolong the service life of the cryogenic container.

Another object of the present utility model is to provide a cryogenic container for storing and transporting cryogenic liquids. In order to prevent the inner cylinder from rotating in the circumferential direction relative to the outer cylinder, an anti-rotation Supports to provide further stability to the overall structure.

Another object of the present invention is to provide a cryogenic container for storing and transporting cryogenic liquids. The structure of the cryogenic container can also be applied to cryogenic tanks, cryogenic tank trucks and cryogenic insulating gas cylinders.

In order to achieve at least one of the above objectives, the utility model provides a cryogenic container for storing and transporting cryogenic liquids, comprising: a container body, wherein the container body includes an outer cylinder and an inner cylinder; and at least one support assembly, wherein the support assembly is set inside the container body to support the inner cylinder connected to the outer cylinder, and there is an accommodation space between the outer cylinder and the inner cylinder, the The accommodating space includes an anti-rotation support.

In some embodiments, the support assembly further includes a support shaft and at least one hoop support device, wherein the hoop support device is fixed at a midpoint position on the support shaft and two sides symmetrical to the midpoint At the side position, the hoop supporting device is arranged in the inner space of the inner cylinder.

In some embodiments, wherein the support assembly further includes at least one fixing ring, the fixing ring is arranged at the connection between the hoop support device and the support shaft for further fixing the hoop support device, Therefore, the overall stability of the support assembly is enhanced.

In some embodiments, the number of the hoop support device and the number of the fixing rings are at least three, and the actual number can be determined according to the length and weight of the support shaft.

Preferably, the fixing ring material is made of carbon steel or stainless steel, and the hoop support material is made of glass fiber reinforced plastic or carbon fiber.

In some embodiments, the support assembly further includes a sleeve and at least six sets of support plates, the support shaft and the hoop support device are disposed inside the sleeve, and the support plates are disposed In the inner space of the inner cylinder, a through hole is formed in the center of the support plate, and the support plate is evenly distributed on the casing in the circumferential direction.

Preferably, the support plates are correspondingly positioned at the connection between the hoop support device and the casing, and the two support plates are cross-shaped and fixed to the connection, so that the two support A triangular-like stable structure is formed between the plate and the inner cylinder, so that the stability of the cryogenic container is improved.

Preferably, the casing further has an expansion joint to accommodate the dimensional change of the inner cylinder caused by thermal expansion and contraction after being filled with cryogenic liquid.

In some embodiments, the support assembly further includes two axial support devices, the axial devices are arranged in the accommodation space and connected to the sleeve.

In some embodiments, the two ends of the outer cylinder each have an outer head and a cover plate, the outer head further has an annular groove, the cover plate is arranged in the annular groove and connected to the support assembly.

In some embodiments, the two ends of the inner cylinder each have an inner head, the inner head further has an annular groove, the sleeve can pass through the annular groove, and the axial The support device is connected to the inner head and the cover plate.

Preferably, the outer head further has an outer reinforcement plate connected to the cover plate, and the inner head further has an inner reinforcement plate connected to the casing .

In some embodiments, one end of the anti-rotation support is fixed at the midpoint of the inner cylinder, and the other end of the anti-rotation support is fixed at the midpoint of the outer cylinder.

Description of drawings

Fig. 1 is a schematic structural view of a cryogenic container according to a preferred embodiment of the present invention.

FIG. 2 is an enlarged structural schematic diagram of the structure in region A in FIG. 1 .

FIG. 3 is an enlarged structural schematic diagram of the structure in region B in FIG. 1 .

Fig. 4 is a structural schematic diagram of the relationship between the support plate and the inner cylinder according to a preferred embodiment of the present invention.

Fig. 5 is a schematic diagram showing the enlarged structure of the anti-rotation support according to the present invention.

In the figure: container body 10, outer cylinder body 11, outer head 111, cover plate 112, outer reinforcement plate 113, inner cylinder body 12, inner head 121, inner reinforcement plate 122, accommodation space 13, anti-rotation support 14 , a support assembly 20, a support shaft 21, a circumferential support device 22, a fixed ring 23, a sleeve 24, an expansion joint 241, a support plate 25, and an axial support device 26.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and embodiments, so that any person skilled in the art can manufacture and use the utility model. The embodiments in the following description are by way of example only and modifications will be apparent to those skilled in the art. The general principles defined in the following description will apply to other embodiments, alternatives, modifications, equivalent implementations and applications without departing from the spirit and scope of the present invention.

Those skilled in the art should understand that, in the disclosure of the present utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention. The novel and simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, so the above terms should not be construed as limiting the utility model. It can be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element The quantity can be multiple, and the term "a" cannot be understood as a limitation on the quantity.

As shown in Figures 1 to 5, the utility model provides a low-temperature container for storing and transporting low-temperature liquids. Compared with some low-temperature containers in the prior art, the structure of the utility model has better thermal insulation performance. It has good stability, relatively simple manufacturing method, low cost and can be assembled and used conveniently. The structure of the cryogenic container can also be applied to cryogenic tanks, cryogenic tank trucks and cryogenic insulating gas cylinders.

Specifically, as shown in Figure 1, the cryogenic container includes: a container body 10, wherein the container body includes an outer cylinder 11 and an inner cylinder 12; and three support components 20, wherein the support components 20 is set inside the container body 10 to support the inner cylinder 12 to be connected to the outer cylinder 11, and there is an accommodation space 13 between the outer cylinder 11 and the inner cylinder 12, so The accommodating space 13 includes an anti-rotation supporting member 14 . The utility model adopts the structure of the three support components 20, under the condition of ensuring the support strength between the outer cylinder 11 and the inner cylinder 12, the number of support points is reduced compared with the traditional structure, and the inner The heat transfer from the barrel 12 to the outside is reduced.

More specifically, the support assembly 20 further includes a support shaft 21 and three hoop support devices 22, wherein the hoop support devices 22 are arranged in the inner space of the inner cylinder 12, and the hoop support devices The device 22 is fixed on the middle point position on the support shaft 21 and the two side positions symmetrical to the middle point. Of course, the setting of the ring support device position as shown in FIG. 1 is only for example, in other embodiments In , as long as the positions of the two sides are symmetrical, the distance between the two sides can be adjusted appropriately. The support shaft 21 is cylindrical, and the support shaft 21 is stabilized by setting the hoop supporting device 20 so as not to shake up and down.

Further, the support assembly 20 further includes six fixing rings 23, and the fixing rings 23 are arranged at the connection between the hoop support device 22 and the support shaft 21 for further fixing the hoop support device 22, thereby enhancing the overall stability of the support assembly 20. By setting the hoop support device, the support shaft is stabilized so as not to shake from side to side.

Those skilled in the art should know that the actual number of the hoop support device 20 and the actual number of the fixed ring 23 can be determined according to the length and weight calculation of the support shaft 21, the utility model is here On the one hand, it is not limited by this.

Specifically, the support assembly 20 also includes a sleeve 24 and six sets of support plates 25, the sleeve 24 is in the shape of a hollow tube, the support shaft 21 and the ring support device 22 are arranged on the Inside the casing 24 , the support plate 25 is disposed in the inner space of the inner cylinder 12 , and the center of the support plate 25 has a through hole, and the support plate 25 is evenly distributed on the casing 24 in the circumferential direction. The inner diameter of the sleeve 24 is larger than the inner diameter of the supporting shaft 21 . After the support shaft 21 is installed with the hoop support device 20 and the fixed ring 23, it can be inserted into the sleeve 24, so as to prevent the support shaft 21 from directly contacting the inside of the cryogenic container 10 during use. The low temperature liquid will be polluted and affect the use effect.

It is worth mentioning that the casing 24 is preferably made of stainless steel, the supporting shaft 21 and the hoop supporting device 20 are preferably made of glass fiber reinforced plastic or carbon fiber, and the fixing ring 23 is preferably made of stainless steel.

As shown in Figure 4, the support plates 25 are correspondingly positioned at the connection between the annular support device 22 and the sleeve 24, and the two support plates 25 are cross-shaped and fixed to the connection. , the two support plates 25 are arranged at an angle of 90 degrees, so that a triangular-like stable structure is formed between the two support plates 25 and the inner cylinder 12, so that the stability of the cryogenic container 10 is improved . The casing 24 further has an expansion joint 241 to accommodate the dimensional change of the inner cylinder 12 caused by thermal expansion and contraction after being filled with cryogenic liquid. The support assembly 20 further includes two axial support devices 26 , wherein the axial devices 26 are arranged in the accommodation space and connected to the sleeve 24 . The two ends of the outer cylinder 11 each have an outer head 111 and a cover plate 112, the outer head 111 further has an annular groove, the cover plate 112 is arranged in the annular groove and connected on the support assembly 20. Wherein the two ends of described inner cylindrical body 12 respectively have an inner sealing head 121, and described inner sealing head 121 further has an annular groove, and described sleeve pipe 24 can pass through described annular groove, and described axial support device 26 is connected to the inner head 121 and a cover plate 112 . The outer sealing head 111 further has an outer reinforcing plate 113, the outer reinforcing plate 113 is arranged on the side facing the external space of the outer sealing head 111 and connected to the cover plate 112, and the inner sealing head 121 further There is an inner reinforcement plate 122, the inner reinforcement plate 122 is arranged on the side of the inner head 121 facing the accommodating space 13 and connected to the sleeve 24, through the thermal insulation performance of the cryogenic container 10 Provides reinforcement.

It is worth mentioning that the preferred material of the cover plate 112 and the axial device 26 is carbon steel or stainless steel.

As shown in Figure 5, in order to prevent the inner cylinder from rotating in a circumferential direction relative to the outer cylinder, one end of the anti-rotation support 14 is fixedly connected to the middle point of the inner cylinder 12, and the anti-rotation The other end of the support member 14 is fixedly connected to the middle point of the outer cylinder 11 . In some other embodiments, multiple anti-rotation support members 14 may be provided.

Those skilled in the art should understand that the above description and the embodiments of the present invention shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of this utility model has been completely and effectively realized. The functions and structural principles of the present utility model have been shown and explained in the embodiments, and the implementation of the present utility model can have any deformation or modification without departing from the principle.

Claims (8)

1. A cryogenic container for storing and transporting cryogenic liquids, characterized in that it comprises: A container body, wherein the container body includes an outer cylinder and an inner cylinder; and at least one support assembly, wherein the support assembly is arranged inside the container body to support the inner cylinder connected to the The outer cylinder, the support assembly includes a support shaft and at least one hoop support device, wherein the hoop support device is fixed on the support shaft at a middle point position and two side positions symmetrical to the middle point, The hoop supporting device is arranged in the inner space of the inner cylinder, and there is an accommodating space between the outer cylinder and the inner cylinder. 2. The cryogenic container according to claim 1, wherein the supporting assembly comprises at least one fixing ring, and the fixing ring is arranged at the junction of the hoop supporting device and the supporting shaft to fix the hoop supporting device. 3. The cryogenic container according to claim 2, wherein the number of said hoop supporting means and the number of said fixing rings are at least three. 4. The cryogenic container according to claim 3, wherein the support assembly comprises a sleeve and at least one set of support plates, the support shaft and the hoop support device are arranged inside the sleeve, the The support plate is arranged in the inner space of the inner cylinder, a through hole is formed in the center of the support plate, and the support plate is evenly distributed on the sleeve in the circumferential direction. 5. The cryogenic vessel of claim 4, wherein the sleeve has an expansion joint. 6. The cryogenic container according to claim 5, wherein the support assembly comprises two axial support devices, the axial devices are arranged in the accommodation space and connected to the sleeve. 7. The cryogenic container according to claim 6, wherein the two ends of the outer cylinder each have an outer head and a cover plate, the outer head further has an annular groove, and the cover plate is arranged on The annular groove is connected to the support assembly; wherein the two ends of the inner cylinder each have an inner head, and the inner head further has an annular groove, and the sleeve can pass through the annular Groove, the axial support device is connected to the inner head and the cover plate. 8. The cryogenic container according to claim 7, wherein the outer seal head has an outer reinforcement plate connected to the cover plate, the inner seal head has an inner reinforcement plate, and the inner reinforcement plate is connected to the cover plate. The reinforcing plate is connected to the casing.