阅读说明：本技术 一种适用于立式低温绝热容器的接管固定方法 (Connecting pipe fixing method suitable for vertical low-temperature heat-insulating container ) 是由 孙兰萍 王魁 徐小婷 葛路伟 于 2020-12-09 设计创作，主要内容包括：本发明的一种适用于立式低温绝热容器的接管固定方法,包括至少一个形成在由内容器和外容器构成的立式低温绝热容器的外容器底部外周面上的接管集成安装槽；通过不锈钢焊条焊接在接管集成安装槽底面外周边沿上的不锈钢封盖；在不锈钢封盖上形成有若干管道接孔,所述的若干管道接孔包括进液孔和出液孔,在注液孔内连接有进液管,在出液孔内连接有出液管；通过由不锈钢焊条焊接在外容器底部外周面上的不锈钢封盖可以使得外部管道例如进液管或出液管更好向内容器中进行输送液体,不锈钢封盖形成为具有拱形凸起的盖体,该设置可以使得不锈钢封盖能够更为稳定牢固的连接在外容器的底部上,使用寿命长,其结构设计合理。(The invention relates to a connecting pipe fixing method suitable for a vertical low-temperature heat-insulating container, which comprises at least one connecting pipe integration installation groove formed on the outer peripheral surface of the bottom of an outer container of the vertical low-temperature heat-insulating container consisting of an inner container and an outer container; a stainless steel sealing cover welded on the outer peripheral edge of the bottom surface of the connecting pipe integrated mounting groove through a stainless steel welding rod; a plurality of pipeline connecting holes are formed in the stainless steel sealing cover, each pipeline connecting hole comprises a liquid inlet hole and a liquid outlet hole, a liquid inlet pipe is connected in each liquid inlet hole, and a liquid outlet pipe is connected in each liquid outlet hole; through the stainless steel closing cap by the welding of stainless steel welding rod on outer container bottom outer peripheral face can make outside pipeline for example feed liquor pipe or drain pipe carry liquid in better inside container, the stainless steel closing cap forms to have the bellied lid of arch, should set up can make the stainless steel closing cap can be more stable firm connect on the bottom of outer container, long service life, its structural design is reasonable.)

1. A connecting pipe fixing method suitable for a vertical low-temperature heat-insulating container is characterized by comprising the following steps: the method comprises the following steps of,

(1) derusting the outer peripheral surface of the bottom of an outer container of the vertical low-temperature heat-insulating container by using a high-efficiency corrosion inhibitor;

(2) the outer container bottom outer peripheral face of the vertical low-temperature heat-insulating container is provided with a connecting pipe integrated mounting groove for the connecting pipe to pass through gas cutting, a connecting pipe integrated fixing device for assisting in fixing the connecting pipe is mounted in the connecting pipe integrated mounting groove, the connecting pipe integrated fixing device is welded and fixed on the connecting pipe integrated mounting groove, and the connecting pipe of the vertical low-temperature heat-insulating container is fixed by the connecting pipe integrated fixing device on the connecting pipe integrated mounting groove.

2. The method of claim 4, wherein the method comprises the steps of: the connecting pipe integrated fixing device comprises a connecting pipe integrated fixing device,

at least one connecting pipe integrated mounting groove formed on the outer peripheral surface of the bottom of the outer container of the vertical low-temperature heat-insulating container consisting of the inner container and the outer container;

the stainless steel sealing cover is welded on the peripheral edge of the bottom surface of the connecting pipe integrated mounting groove through a stainless steel welding rod, and a closed interlayer between the inner container and the outer container is formed by the stainless steel sealing cover which is welded and fixed on the connecting pipe integrated mounting groove;

the stainless steel sealing cover is provided with a plurality of pipeline connecting holes, the pipeline connecting holes comprise a liquid inlet hole for injecting liquid into the inner container and a liquid outlet hole for discharging the liquid in the inner container, a liquid inlet pipe with the end part connected to the circumferential surface of the top of the inner container is connected in the liquid inlet hole, a liquid outlet pipe with the end part connected to the circumferential surface of the bottom of the inner container is connected in the liquid outlet hole, and the liquid medium in the inner container is conveyed by the liquid inlet pipe and the liquid outlet pipe connected to the inner container.

3. The method of claim 2, wherein the method comprises the steps of: the connecting pipe integrated mounting grooves are circular grooves, and the number of the connecting pipe integrated mounting grooves is two.

4. A method of fixing a nozzle adapted to a vertical cryogenic insulation vessel according to claim 3, wherein: the plane edge of the stainless steel seal cover is a welding surface welded with the outer peripheral surface of the bottom of the outer container, a vertical downward arched bulge is formed towards the middle part of the stainless steel seal cover on the plane edge of the stainless steel seal cover in a welded state, and the stainless steel seal cover is integrally supported by the vertical downward arched bulge.

5. The method of claim 4, wherein the method comprises the steps of: the liquid inlet pipe supporting rib pipe and the liquid outlet pipe supporting rib pipe are vertically and upwards formed along the forming direction of the arch-shaped bulge, the liquid inlet pipe wall in the liquid inlet hole is supported by the liquid inlet pipe supporting rib pipe, and the liquid outlet pipe wall in the liquid outlet hole is supported by the liquid outlet pipe supporting rib pipe.

6. The method of claim 5, wherein the method comprises the steps of: the top end surfaces of the liquid inlet pipe supporting rib pipe and the liquid outlet pipe supporting rib pipe are flush with the edge of the bottom surface of the connecting pipe integrated mounting groove.

7. The method of claim 6, wherein the method comprises the steps of: and 5-10mm welding gaps are reserved between the welding surface of the welded stainless steel sealing cover and the edge of the bottom surface of the connecting pipe integrated mounting groove.

Technical Field

The invention relates to the technical field of low-temperature heat-insulating containers, in particular to a connecting pipe fixing method suitable for a vertical low-temperature heat-insulating container.

Background

The low-temperature container can be classified into two types according to the working pressure, one type is a low-pressure container (or an open container) which works under the pressure close to the atmospheric pressure, and the other type is a high-pressure container which works under the pressure of 1.5-3.0 MPa. Low pressure vessels are used for general storage and transport; the high pressure vessel is installed in a consumption center, and supplies a low temperature liquid or a gas after vaporization to a user through a pipe network, and the pipe network should maintain a predetermined minimum pressure regardless of the supply of the liquid or the gas, and the type of the heat insulating structure should be selected in consideration of heat insulating performance, economy, robustness, weight, volume, convenience of manufacture, and the like. None of the insulation types is considered to be perfect in all cases, and in general, low boiling point liquids are used with high efficiency; the large container should be a low-cost heat insulation type without considering the weight and the occupied space, and the transportation type and portable type containers should be a light-weight and small-volume heat insulation type; the container with complex shape is generally not suitable for vacuum multi-layer heat insulation, and in addition, for the container used for a short time or used intermittently, the heat capacity of the heat insulation structure is as small as possible, so that the precooling time is short and the cooling consumption is small;

the vertical low-temperature heat-insulating container mainly comprises an outer container and an inner container, an interlayer space formed between the inner container and the outer container is vacuumized to prevent heat transfer, when the inner container needs to be fed with liquid or discharged with liquid, the inner container and the outer container are connected through a stainless steel connecting pipe, but the outer container is made of carbon steel mostly and cannot bear the temperature of a cryogenic medium, so that the material of the outer container needs to be adjusted to perform transition, the most important thing for the low-temperature heat-insulating container is to prevent heat transfer, the more holes are formed in the outer container, the more the inner container contacts with the outside, the more the inner container is not beneficial to heat preservation, and therefore, the connecting pipe fixing method which can integrally manage the connecting pipe and avoid the outer container cannot bear the cryogenic.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides a connecting pipe fixing method which can carry out integrated management on a connecting pipe and avoid that an outer container cannot bear a cryogenic medium and is suitable for a vertical low-temperature heat-insulating container.

The technical problem to be solved by the invention is realized by the following technical proposal that the connecting pipe fixing method suitable for the vertical low-temperature heat-insulating container comprises the following steps,

(1) derusting the outer peripheral surface of the bottom of an outer container of the vertical low-temperature heat-insulating container by using a high-efficiency corrosion inhibitor;

(2) the outer container bottom outer peripheral face of the vertical low-temperature heat-insulating container is provided with a connecting pipe integrated mounting groove for the connecting pipe to pass through gas cutting, a connecting pipe integrated fixing device for assisting in fixing the connecting pipe is mounted in the connecting pipe integrated mounting groove, the connecting pipe integrated fixing device is welded and fixed on the connecting pipe integrated mounting groove, and the connecting pipe of the vertical low-temperature heat-insulating container is fixed by the connecting pipe integrated fixing device on the connecting pipe integrated mounting groove.

The technical problem to be solved by the present invention can also be solved by the following technical solution, in which the above-mentioned method for fixing the connection pipe suitable for the vertical low-temperature heat-insulating container, the connection pipe integrated fixing device comprises,

at least one connecting pipe integrated mounting groove formed on the outer peripheral surface of the bottom of the outer container of the vertical low-temperature heat-insulating container consisting of the inner container and the outer container;

the stainless steel sealing cover is welded on the peripheral edge of the bottom surface of the connecting pipe integrated mounting groove through a stainless steel welding rod, and a closed interlayer between the inner container and the outer container is formed by the stainless steel sealing cover which is welded and fixed on the connecting pipe integrated mounting groove;

the stainless steel sealing cover is provided with a plurality of pipeline connecting holes, the pipeline connecting holes comprise a liquid inlet hole for injecting liquid into the inner container and a liquid outlet hole for discharging the liquid in the inner container, a liquid inlet pipe with the end part connected to the circumferential surface of the top of the inner container is connected in the liquid inlet hole, a liquid outlet pipe with the end part connected to the circumferential surface of the bottom of the inner container is connected in the liquid outlet hole, and the liquid medium in the inner container is conveyed by the liquid inlet pipe and the liquid outlet pipe connected to the inner container.

The technical problem to be solved by the invention can also be solved by adopting the following technical scheme that the connecting pipe fixing method suitable for the vertical low-temperature heat-insulating container is characterized in that the connecting pipe integrated mounting groove is a circular groove hole, and the number of the connecting pipe integrated mounting grooves is two.

The technical problem to be solved by the invention can also be solved by adopting the following technical scheme that the connecting pipe fixing method suitable for the vertical low-temperature heat-insulating container is characterized in that the plane edge of the stainless steel sealing cover is a welding surface welded with the outer peripheral surface of the bottom of the outer container, an arch-shaped bulge which is vertically downward is formed towards the middle part of the stainless steel sealing cover on the plane edge of the stainless steel sealing cover in a welded state, and the integral support of the stainless steel sealing cover is formed by the arch-shaped bulge which is vertically downward.

The technical problem to be solved by the invention can also be solved by the following technical scheme that the connecting pipe fixing method suitable for the vertical low-temperature heat-insulating container is characterized in that a liquid inlet pipe supporting rib pipe and a liquid outlet pipe supporting rib pipe are vertically and upwards formed on the edge of a liquid inlet hole and a liquid outlet hole on the arched bulge along the forming direction of the arched bulge, the pipe wall of the liquid inlet pipe in the liquid inlet hole is supported by the liquid inlet pipe supporting rib pipe, and the pipe wall of the liquid outlet pipe in the liquid outlet hole is supported by the liquid outlet pipe supporting rib pipe.

The technical problem to be solved by the invention can also be solved by adopting the following technical scheme that the connecting pipe fixing method suitable for the vertical low-temperature heat-insulating container is characterized in that the top end surfaces of the liquid inlet pipe supporting rib pipe and the liquid outlet pipe supporting rib pipe are flush with the edge of the bottom surface of the connecting pipe integrated mounting groove.

The technical problem to be solved by the invention can be solved by adopting the following technical scheme that the connecting pipe fixing method suitable for the vertical low-temperature heat-insulating container is characterized in that a welding gap of 5-10mm is reserved between the welding surface of the stainless steel sealing cover and the bottom surface edge of the connecting pipe integrated mounting groove after welding.

Compared with the prior art, the invention has the beneficial technical effects that: the stainless steel sealing cover welded on the outer peripheral surface of the bottom of the outer container through the stainless steel welding rod can enable an external pipeline such as a liquid inlet pipe or a liquid outlet pipe to better convey liquid into the inner container; stainless steel closing cap forms to have the bellied lid of arch, should set up and can make the stainless steel closing cap can be more stable firm connect on the bottom of outer container, long service life, with feed liquor pipe and drain pipe equipartition set up on stainless steel closing cap, thereby can make the outer container reduce the outside heat of assurance outer container in the at utmost of trompil quantity and get into the inner container, do benefit to the heat preservation of inner container, its structural design is reasonable.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic bottom view of the present invention;

fig. 4 is a partial structural schematic view of the stainless steel closure of the present invention.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings so as to facilitate the further understanding of the present invention by those skilled in the art, and do not limit the right thereto.

Example 1, referring to fig. 1 to 4, a method for fixing a nozzle suitable for a vertical type cryogenic insulation vessel, comprising the steps of,

(1) derusting the outer peripheral surface of the bottom of an outer container of the vertical low-temperature heat-insulating container by using a high-efficiency corrosion inhibitor;

(2) the outer container bottom outer peripheral face of the vertical low-temperature heat-insulating container is provided with a connecting pipe integrated mounting groove for the connecting pipe to pass through gas cutting, a connecting pipe integrated fixing device for assisting in fixing the connecting pipe is mounted in the connecting pipe integrated mounting groove, the connecting pipe integrated fixing device is welded and fixed on the connecting pipe integrated mounting groove, and the connecting pipe of the vertical low-temperature heat-insulating container is fixed by the connecting pipe integrated fixing device on the connecting pipe integrated mounting groove.

Embodiment 2, the method for fixing a nozzle suitable for a vertical cryogenic insulation container according to embodiment 1, wherein the nozzle integrated fixing device comprises,

at least one connecting pipe integrated mounting groove 3 formed on the outer peripheral surface of the bottom of the outer container 2 of the vertical low-temperature heat-insulating container consisting of the inner container 1 and the outer container 2, wherein the space between the inner container 1 and the outer container 2 is a closed interlayer 4, and the closed interlayer 4 is a vacuum-pumping space;

the stainless steel sealing cover 5 is welded on the periphery of the bottom surface of the connecting pipe integrated mounting groove 3 through a stainless steel welding rod, the stainless steel sealing cover 5 can be formed in one step through stamping or casting, and the stainless steel sealing cover 5 fixed on the connecting pipe integrated mounting groove 3 in a welding mode forms a sealing interlayer 4 between the inner container 1 and the outer container 2;

a plurality of pipeline connecting holes are formed on a stainless steel sealing cover 5, the pipeline connecting holes comprise a liquid inlet hole 6 for injecting liquid into an inner container 1 and a liquid outlet hole 7 for discharging the liquid in the inner container 1, both the liquid inlet hole 6 and the liquid outlet hole 7 are arranged on the stainless steel sealing cover 5, so that the open pore scale on the outer peripheral surface of an outer container 2 is reduced to the maximum extent, the contact between the outer container 2 and the inner container 1 and the outside is reduced, a liquid inlet pipe 8 with the end part connected to the top peripheral surface of the inner container 1 is connected in the liquid injecting hole, a liquid outlet pipe 9 with the end part connected to the bottom peripheral surface of the inner container 1 is connected in the liquid outlet hole 7, the liquid medium in the inner container 1 is conveyed by the liquid inlet pipe 8 and the liquid outlet pipe 9 connected to the inner container 1, and the liquid injection and the liquid output of the inner container 1 are both conveyed by the liquid inlet pipe 8 and the, the indirect contact between the outer carbon steel container 2 and the cryogenic medium is avoided to a certain extent, and the normal use state of the outer carbon steel container 2 is ensured.

Embodiment 3, the connecting pipe fixing method for the vertical low-temperature heat-insulating container described in embodiment 2, wherein the connecting pipe integrated mounting grooves 3 are circular groove holes, two connecting pipe integrated mounting grooves 3 are provided, and the two connecting pipe integrated mounting grooves 3 are provided on two sides of the outer peripheral surface of the bottom of the outer container 2.

Embodiment 4, the planar edge of the stainless steel cover 5 is a welding surface welded to the outer peripheral surface of the bottom of the outer container 2, a vertical downward arched protrusion is formed towards the middle of the stainless steel cover 5 on the planar edge of the stainless steel cover 5 in a welded state, the stainless steel cover 5 is integrally supported by the arched protrusion, and the arched protrusion can stabilize the structure of the stainless steel cover 5 and make the stress on the whole arched protrusion more uniform.

Embodiment 5, embodiment 4 the method for fixing a connecting pipe suitable for a vertical low-temperature heat-insulating container, wherein a liquid inlet pipe supporting rib pipe 10 and a liquid outlet pipe supporting rib pipe 11 are vertically and upwardly formed at the hole edges of a liquid inlet hole 6 and a liquid outlet hole 7 on an arch-shaped protrusion along the forming direction of the arch-shaped protrusion, the contact surface between the liquid inlet pipe 8 and the liquid outlet pipe 9 and the stainless steel sealing cover 5 is larger due to the formation of the liquid inlet pipe supporting rib pipe 10 and the liquid outlet pipe supporting rib pipe 11, the liquid inlet pipe 8 and the liquid outlet pipe 9 can be better connected with the stainless steel sealing cover 5 to a certain extent, the pipe wall of the liquid inlet pipe 8 in the liquid inlet hole 6 is supported by the liquid inlet pipe supporting rib pipe 10, and the pipe wall of the liquid outlet pipe 9 in the liquid outlet hole 7 is supported by the liquid outlet pipe supporting rib pipe 11.

In the method for fixing the connecting pipe suitable for the vertical low-temperature heat-insulating container described in embodiments 6 and 5, the top end surfaces of the liquid inlet pipe supporting rib pipes 10 and the liquid outlet pipe supporting rib pipes 11 are flush with the bottom surface edge of the connecting pipe integrated mounting groove 3.

In the method for fixing the connecting pipe suitable for the vertical low-temperature heat-insulating container in the embodiment 7 and the embodiment 6, after welding, a welding gap of 5-10mm is left between the welding surface of the stainless steel cover 5 and the edge of the bottom surface of the connecting pipe integrated mounting groove 3.