CN210624152U

CN210624152U - Liquid outlet pipe joint of horizontal low-temperature liquid storage tank

Info

Publication number: CN210624152U
Application number: CN201921222690.XU
Authority: CN
Inventors: 朱夏琴; 韩小伟
Original assignee: HANGZHOU CHUANKONG GENERAL EQUIPMENT CO LTD
Current assignee: HANGZHOU CHUANKONG GENERAL EQUIPMENT CO LTD
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-05-26
Anticipated expiration: 2029-07-31

Abstract

The utility model provides a liquid outlet pipe joint of a horizontal low-temperature liquid storage tank, which comprises an inner cylinder, an outer cylinder and an interlayer, wherein the interlayer is positioned between the inner cylinder and the outer cylinder; an outer end enclosure is also arranged on the outer side of the outer cylinder body; the method comprises the following steps: the elbow joint is used for being directly connected with the inner cylinder body; the bending included angle of the elbow joint is more than or equal to 90 degrees; and one end of the interlayer bent pipe is connected with the pipe joint, and the other end of the interlayer bent pipe extends out of the outer end enclosure. The utility model adopts the elbow joint to directly connect the inner cylinder body, so long as the resistance caused by the necessary air seal height is overcome, and the liquid discharge resistance is reduced; meanwhile, a bent pipe or an elbow is not required to be arranged on the interlayer bent pipe, the distance between the low-temperature pipeline and the outer cylinder body can be larger, and the phenomenon that the temperature of the outer cylinder wall is too low is avoided.

Description

Liquid outlet pipe joint of horizontal low-temperature liquid storage tank

Technical Field

The utility model relates to a horizontal cryogenic liquids storage tank drain pipe connects the field, concretely relates to horizontal cryogenic liquids storage tank drain pipe connects.

Background

At present, under the condition that the thickness of an interlayer is fixed, a thick-wall pipe joint is usually arranged on a vertical cylinder wall of an inner container cylinder to solve the problem of hole reinforcement, and then a thin-wall bent pipe or an elbow is connected to a sealing end along the interlayer and is led out from an outer cylinder sealing end. If the caliber of the liquid outlet pipe is larger, the bending and diameter-changing requirements of the thin-wall bent pipe or the elbow are larger, so that the liquid outlet pipe is close to the wall of the outer cylinder, and unsafe factors exist; for the large-caliber liquid outlet pipe, a thick-wall pipe is usually directly installed on an inner container end socket, then a thin-wall bent pipe or an elbow is connected, and the liquid is led out from an outer cylinder end socket, but the liquid drainage of the structure not only overcomes the resistance caused by the necessary air seal height, but also overcomes the resistance of lateral turning and the liquid drainage resistance from the lowest point of the inner container to the pipe joint; the liquid outlet resistance is large (as shown in figure 1).

Disclosure of Invention

An object of the utility model is to provide a horizontal cryogenic liquids storage tank drain pipe joint adopts the interior barrel of elbow fitting lug connection, reduces the flowing back resistance, has solved the great defect of play liquid resistance that current horizontal cryogenic liquids storage tank drain pipe joint exists.

In order to achieve the above object, the utility model adopts the following technical scheme:

Optionally, the pipe joint is in the form of a forged right angle pipe joint.

Optionally, the bending included angle of the pipe joint is 135 °.

Optionally, the middle of the interlayer elbow is installed in the interlayer.

Optionally, an inner seal head is further arranged on the outer side of the inner cylinder body; and a bending piece matched with the inner sealing head is arranged on one side of the interlayer elbow close to the elbow joint.

Optionally, elbow fitting includes straight barrel and horizontal interface, straight barrel top is equipped with perpendicular interface, the barrel height of straight barrel one side is short in the opposite side, the perpendicular interface of lateral wall lug connection of the lower one side of height of straight barrel, and the lateral wall of the higher one side of height of straight barrel passes through curved structure and connects horizontal interface, and this curved structure includes vertical bending portion and straight portion. The utility model discloses a lateral wall lug connection perpendicular interface of the lower one side of height of straight barrel has reduced the atmoseal height to furthest, has reduced the resistance that the atmoseal height brought.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model adopts the elbow joint to directly connect the inner cylinder body, so long as the resistance caused by the necessary air seal height is overcome, and the liquid discharge resistance is reduced; meanwhile, a bent pipe or an elbow is not required to be arranged on the interlayer bent pipe, the distance between the low-temperature pipeline and the outer cylinder body can be larger, and the phenomenon that the temperature of the outer cylinder wall is too low is avoided.

Drawings

FIG. 1 is a sectional view of a liquid outlet joint of a horizontal cryogenic liquid storage tank according to the present invention;

fig. 2 is a sectional view of a liquid outlet joint of a horizontal cryogenic liquid storage tank according to embodiment 1 of the present invention;

fig. 3 is a sectional view of an elbow joint of a liquid outlet joint of a horizontal cryogenic liquid storage tank according to embodiment 1 of the present invention.

1. An inner cylinder; 2. an inner bend pipe; 3. an inner end enclosure; 4. an outer cylinder; 5. a pipe bending joint; 6. bending a pipe with an interlayer; 7. an outer end enclosure; 8. an interlayer; 9. a bending member; 10. a straight cylinder body; 11. a horizontal interface; 12. a vertical interface; 13. a longitudinal bend; 14. a straight portion; H. the height of the air gap.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "upper", "lower", "left", "right", "axial", "radial", "vertical", etc., indicating the orientation and positional relationship based on the orientation and positional relationship shown in the drawings, is only for convenience of description and simplification of the description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.

Unless otherwise expressly stated or limited, the terms "assembled", "connected" and "connected" are used broadly and are intended to be inclusive, e.g., fixed, detachable, or integral; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Example 1

As shown in fig. 1, fig. 2 and fig. 3, the utility model discloses a liquid outlet pipe joint of a horizontal cryogenic liquid storage tank, wherein the horizontal cryogenic liquid storage tank comprises an inner cylinder body 1, an outer cylinder body 4 and an interlayer 8, and the interlayer is positioned between the inner cylinder body and an outer cylinder body; an inner end enclosure 3 is also arranged on the outer side of the inner cylinder body; an outer end enclosure 7 is also arranged on the outer side of the outer cylinder body; this horizontal cryogenic liquids storage tank drain pipe connects includes: the elbow joint 5 and the interlayer elbow 6 are used for directly connecting the inner cylinder; the bending included angle of the elbow joint is equal to 90 degrees; the elbow joint is in a forged right-angle pipe joint type. One end of the interlayer bent pipe is connected with the pipe joint, and the other end of the interlayer bent pipe extends out of the outer end enclosure.

The middle part of the interlayer bent pipe is arranged in the interlayer. The side of the sandwich elbow adjacent to the elbow joint is provided with a bending piece 9 matched with the inner sealing head. Elbow fitting includes straight barrel 10 and horizontal interface 11, straight barrel top is equipped with perpendicular interface 12, the barrel height of straight barrel one side is short in the opposite side, and the lateral wall lug connection of the lower one side of height of straight barrel is perpendicular interface, and the lateral wall of the higher one side of height of straight barrel passes through curved structure and connects horizontal interface, and this curved structure includes vertical bend portion 13 and straight portion 14. The utility model discloses a lateral wall lug connection perpendicular interface of the lower one side of height of straight barrel has reduced the atmoseal height to furthest, has reduced the resistance that the atmoseal height brought.

The drawing takes a liquid outlet of DN100 as an example, the thickness of an interlayer between an inner cylinder and an outer cylinder is 250mm, and the height H of the air seal is the same. The sandwich elbow of fig. 1 also has an inner elbow 2; the liquid discharge resistance of fig. 1 is larger than that of fig. 2, and the minimum distance of 118mm from the elbow joint to the inner wall of the outer cylinder can be realized in the embodiment 2 (fig. 2), and the heat insulation effect is good.

When the embodiment is implemented, the vertical interface of the elbow joint is arranged at the bottom of the inner cylinder body, the horizontal interface of the elbow joint is connected with the interlayer elbow, and the other end of the interlayer elbow extends out of the outer end enclosure.

Example 2

The utility model discloses a horizontal cryogenic liquids storage tank goes out liquid pipe joint, include: the elbow joint is used for being directly connected with the inner cylinder body; one end of the interlayer bent pipe is connected with the pipe joint, and the other end of the interlayer bent pipe extends out of the outer end enclosure. The bend included angle of the elbow joint is 135 degrees.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. A liquid outlet pipe joint of a horizontal low-temperature liquid storage tank comprises an inner cylinder, an outer cylinder and an interlayer, wherein the interlayer is positioned between the inner cylinder and the outer cylinder; an outer end enclosure is also arranged on the outer side of the outer cylinder body; it is characterized by comprising:

the elbow joint is used for being directly connected with the inner cylinder body; the bending included angle of the elbow joint is more than or equal to 90 degrees; and

and one end of the interlayer bent pipe is connected with the pipe joint, and the other end of the interlayer bent pipe extends out of the outer end enclosure.

2. The horizontal cryogenic liquid storage tank tapping fitting of claim 1 wherein said elbow fitting is in the form of a forged right angle fitting.

3. The horizontal cryogenic liquid storage tank tapping fitting of claim 1 wherein said elbow fitting is bent at an included angle of 135 °.

4. The horizontal cryogenic liquid storage tank liquid outlet pipe joint according to claim 1, 2 or 3, wherein the interlayer elbow is installed in the interlayer in the middle.

5. The horizontal cryogenic liquid storage tank liquid outlet pipe joint according to claim 4, wherein an inner end enclosure is further arranged on the outer side of the inner cylinder; and a bending piece matched with the inner sealing head is arranged on one side of the interlayer elbow close to the elbow joint.

6. The liquid outlet joint of the horizontal cryogenic liquid storage tank according to claim 1, 2 or 3, wherein the elbow joint comprises a straight cylinder and a horizontal joint, the top of the straight cylinder is provided with a vertical joint, the height of the cylinder on one side of the straight cylinder is shorter than that of the other side of the straight cylinder, the side wall of the side with the lower height of the straight cylinder is directly connected with the vertical joint, and the side wall of the side with the higher height of the straight cylinder is connected with the horizontal joint through a curved structure, wherein the curved structure comprises a longitudinal curved part and a flat straight part.