Flat-bottom storage tank outlet pipeline structure

By incorporating multiple protrusions and bends in the outlet pipe of the flat-bottomed storage tank, the problem of material residue at the bottom of the tank is solved, achieving complete material discharge, reducing tank cleaning costs, and avoiding cross-contamination of materials.

CN224171614UActive Publication Date: 2026-04-28FUJIAN KZJ NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN KZJ NEW MATERIALS CO LTD
Filing Date
2025-06-03
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing flat-bottomed storage tank outlet pipe design results in material residue at the bottom of the tank, posing risks of material waste and cross-contamination, and the cleaning cost is high, while the purchase price of conical-bottomed storage tanks is expensive.

Method used

Multiple protrusions are installed at the outlet pipe of the flat-bottomed storage tank. The protrusions are integrally formed with the pipe and are shaped as an inverted triangle, inverted trapezoid, or semi-circle. The height is 5-10mm and the spacing is 20-30mm. The pipe extends to the center of the tank bottom. The elbow is designed as a 90-degree low-position guide and is connected by a flange.

Benefits of technology

Reduce material residue in storage tanks, reduce material waste and tank cleaning costs, prevent cross-contamination of materials, and improve the thoroughness of material discharge.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224171614U_ABST
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Abstract

The utility model discloses a flat-bottom storage tank outlet pipeline structure which comprises a pipeline, the pipeline is arranged on the side wall close to the bottom of a flat-bottom storage tank in a penetrating mode, the pipeline comprises a first pipe opening located inside the flat-bottom storage tank and a second pipe opening located outside the flat-bottom storage tank, and the first pipe opening faces the bottom face of the flat-bottom storage tank; the protrusions surround the first pipe opening and extend from the end face of the first pipe opening to the bottom face of the flat-bottom storage tank. According to the flat-bottom storage tank, the protrusions are arranged at the first pipe opening, so that attached residues of materials in the tank can be reduced through the disturbance effect of the protrusions, the materials in the storage tank are discharged more thoroughly, the residual rate of the materials in the flat-bottom storage tank is reduced, the quality problem caused by mixing of the residual materials and existing materials is solved, and the tank cleaning cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of storage tank technology, and in particular to a flat-bottomed storage tank outlet pipe structure. Background Technology

[0002] In industrial production, flat-bottomed storage tanks are widely used to store various materials, such as large-volume liquids or semi-fluids under normal pressure. However, the outlet pipes of currently used flat-bottomed storage tanks adopt a conventional direct-connection design, with the outlet pipe port only flush with the inner wall of the tank and not extending to the bottom. This design has several drawbacks: First, due to the existence of dead zones in gravity flow, approximately 5%-10% of the material at the bottom of the tank cannot be completely discharged, resulting in significant material waste. Second, when changing stored materials, if the tank is not thoroughly cleaned, residual material can easily cross-contaminate with the new material, posing a serious threat to product quality stability. Third, to avoid quality problems, regular manual tank cleaning is necessary. Fourth, under the direct-connection design, conical-bottomed storage tanks must be used in some scenarios to meet material emptying requirements. However, the purchase price of conical-bottomed storage tanks is 20%-30% higher than that of flat-bottomed tanks, and they also require specialized supports, which significantly increases infrastructure costs. In summary, the existing design of flat-bottomed storage tank outlet pipelines urgently needs improvement. To address this issue, this application proposes a flat-bottomed storage tank outlet pipeline structure. Utility Model Content

[0003] Based on this, in order to solve the problems existing in the prior art, this application provides a flat-bottomed storage tank outlet pipe structure, including a pipe, the pipe passing through the side wall near the bottom of the flat-bottomed storage tank, the pipe including a first pipe opening located inside the flat-bottomed storage tank and a second pipe opening located outside the flat-bottomed storage tank, the first pipe opening facing the bottom surface of the flat-bottomed storage tank;

[0004] Multiple protrusions surround the first nozzle and extend from the end face of the first nozzle toward the bottom of the flat-bottomed storage tank.

[0005] Furthermore, multiple protrusions are integrally formed with the pipe.

[0006] Furthermore, the pipeline includes a first pipeline and a second pipeline. The first pipeline passes through the side wall near the bottom of the flat-bottomed storage tank, and one end of the second pipeline is installed through a bend at the end of the first pipeline located inside the flat-bottomed storage tank.

[0007] Furthermore, the shape of the protrusion is an inverted triangle, an inverted trapezoid, a regular square, or a semicircle.

[0008] Furthermore, the height of the protrusion is 5-10mm, and the interval between the protrusions is 20-30mm.

[0009] Furthermore, one end of the first pipeline located inside the flat-bottomed tank extends to the central area of ​​the bottom of the flat-bottomed tank, and the extension distance is greater than or equal to 1 / 3 of the tank bottom radius.

[0010] Furthermore, the bend angle of the elbow is 90 degrees, and the end of the elbow is close to the bottom surface of the tank, with a distance of less than or equal to 50mm from the bottom of the tank.

[0011] Furthermore, a flange is provided at the second pipe opening.

[0012] Beneficial effects: By setting multiple protrusions at the first pipe opening, the present invention can reduce the adhesion and residue of materials in the tank through the disturbance effect of the protrusions, so that the materials in the storage tank are discharged more thoroughly, reducing the residual rate of materials in flat-bottomed storage tanks, reducing quality problems caused by the mixing of residual materials with existing materials, and reducing tank cleaning costs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the installation of the outlet pipeline structure of the flat-bottomed storage tank of this utility model;

[0015] Figure 2 This is a schematic diagram of the outlet pipeline structure of the flat-bottomed storage tank of this utility model;

[0016] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0017] In the diagram: 1. Flat-bottomed storage tank; 2. Pipeline; 21. First pipe opening; 211. Protrusion; 22. Second pipe opening; 23. First pipe; 24. Second pipe; 3. Elbow; 4. Flange.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] like Figure 1-3 As shown, this application embodiment provides a flat-bottomed storage tank outlet pipe structure, including: a pipe 2, the pipe 2 passing through the side wall near the bottom of the flat-bottomed storage tank, the pipe 2 including a first pipe opening 21 located inside the flat-bottomed storage tank and a second pipe opening 22 located outside the flat-bottomed storage tank, the first pipe opening 21 facing the bottom surface of the flat-bottomed storage tank;

[0023] Multiple protrusions 211 surround the first opening 21 and extend from the end of the first opening 21 to the bottom surface of the flat-bottomed storage tank.

[0024] In this embodiment, the first pipe opening 21 is toothed, and the protrusion 211 is in the shape of an inverted triangle, inverted trapezoid, regular square, or semicircle. The height of the protrusion 211 is 5-10mm, the spacing between the protrusions 211 is 20-30mm, the protrusion 211 and the pipe 2 are integrally formed, the structure is simple, and the thickness of the protrusion 211 is the same as the wall thickness of the pipe 2, so there will be no connection gap or step that would cause material residue. The setting of the protrusion 211 can reduce the adhesion residue of the material in the tank through the disturbance effect, so that the material is discharged more thoroughly during the discharge process.

[0025] This utility model provides multiple protrusions 211 at the first pipe opening 21. This protrusions 211 can reduce the adhesion and residue of materials inside the tank through the disturbance effect of the protrusions 211, making the material discharge from the storage tank more thorough, reducing the material residue rate in the flat-bottomed storage tank 1, reducing quality problems caused by the mixing of residual materials with existing materials, and reducing tank cleaning costs.

[0026] In one embodiment, the pipe 2 includes a first pipe 23 and a second pipe 24. The first pipe 23 passes through the side wall near the bottom of the flat-bottomed storage tank, and one end of the second pipe 24 is installed through a bend at the end of the first pipe 23 located inside the flat-bottomed storage tank.

[0027] In this embodiment, the other end of the second pipe 24 is the first pipe opening 21, and the other end of the first pipe 23 is the second pipe opening 22.

[0028] In one embodiment, one end of the first pipe 23 located inside the flat-bottomed storage tank 1 extends to the central area of ​​the bottom of the flat-bottomed storage tank 1, and the extension distance is greater than or equal to 1 / 3 of the tank bottom radius.

[0029] In this embodiment, the first pipe 23 extends to the center area of ​​the bottom of the flat-bottomed storage tank 1, which can ensure that the pipe covers the material deposition area and discharge the material in the dead corner, effectively solving the problem of material residue caused by the dead corner of gravity flow.

[0030] In one embodiment, the bend angle of the elbow 3 is 90 degrees, and the end of the elbow 3 is close to the bottom surface of the tank, with a distance from the bottom of the tank of less than or equal to 50 mm.

[0031] In this embodiment, by setting a 90-degree guide bend 3 with the port of bend 3 close to the bottom plane of the tank, a low-level guide channel is formed, which can guide the material to flow more smoothly to the first pipe 23 and further improve the material emptying rate.

[0032] In one embodiment, the second port 22 is provided with a flange 4.

[0033] In this embodiment, by setting flange 4, the first pipe port 21 can be connected to the pipe of external equipment.

[0034] This application also provides a flat-bottomed storage tank, which adopts the flat-bottomed storage tank outlet pipe structure in the above embodiments.

[0035] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A flat-bottomed storage tank outlet pipe structure, characterized in that, include: The pipe passes through the side wall near the bottom of the flat-bottomed storage tank. The pipe includes a first port located inside the flat-bottomed storage tank and a second port located outside the flat-bottomed storage tank. The first port faces the bottom surface of the flat-bottomed storage tank. Multiple protrusions surround the first nozzle and extend from the end face of the first nozzle toward the bottom surface of the flat-bottomed tank.

2. The flat-bottomed storage tank outlet pipeline structure according to claim 1, characterized in that, The protrusions are integrally formed with the pipe.

3. The flat-bottomed storage tank outlet pipeline structure according to claim 1, characterized in that, The pipeline includes a first pipeline and a second pipeline. The first pipeline passes through the side wall near the bottom of the flat-bottomed storage tank, and one end of the second pipeline is connected to the end of the first pipeline located inside the flat-bottomed storage tank via a bend.

4. The flat-bottomed storage tank outlet pipeline structure according to claim 1, characterized in that, The protrusion is in the shape of an inverted triangle, an inverted trapezoid, a regular square, or a semicircle.

5. The flat-bottomed storage tank outlet pipeline structure according to claim 2, characterized in that, The height of the protrusion is 5-10mm, and the interval between the protrusions is 20-30mm.

6. The flat-bottomed storage tank outlet pipeline structure according to claim 3, characterized in that, The first pipe extends from one end inside the flat-bottomed tank to the center area of ​​the bottom of the tank, and the extension distance is greater than or equal to 1 / 3 of the tank bottom radius.

7. The flat-bottomed storage tank outlet pipeline structure according to claim 3, characterized in that, The elbow has a bending angle of 90 degrees, and the end of the elbow is close to the bottom surface of the tank, with a distance of less than or equal to 50 mm from the bottom of the tank.

8. The flat-bottomed storage tank outlet pipeline structure according to claim 1, characterized in that, The second pipe opening is equipped with a flange.

9. A flat-bottomed storage tank, characterized in that, The flat-bottomed storage tank adopts the flat-bottomed storage tank outlet pipe structure as described in any one of claims 1-8.