CN213324866U

CN213324866U - High-temperature alkali liquor storage tank

Info

Publication number: CN213324866U
Application number: CN202022173633.6U
Authority: CN
Inventors: 耿杰; 吴哲; 毛万立; 孙宏元; 耿坤
Original assignee: Shijie Integrated Systems Engineering Shanghai Co ltd
Current assignee: Shijie Integrated Systems Engineering Shanghai Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-06-01
Anticipated expiration: 2030-09-28

Abstract

The utility model relates to a high-temperature alkali liquor storage tank, which comprises a tank body, wherein the tank body is supported on the ground through a supporting leg arranged at the bottom of the tank body, the top of the tank body is provided with a manhole, an air inlet and an air return port and a liquid inlet, the bottom of the tank body is provided with a drain outlet and a liquid outlet, a visual liquid level meter is arranged on the outer wall of the tank body, and the visual liquid level meter is communicated with the inside of the tank body; the tank body has a three-layer structure from outside to inside: the outer shell layer, the vacuum layer and the inner bag layer are arranged on the outer wall of the outer shell layer in an annular equidistant mode, a plurality of reserved test ports are formed in the outer wall of the outer shell layer and communicated with the vacuum layer, the outer shell layer is a stainless steel outer shell layer, and the inner bag layer is formed by welding a plurality of pure nickel thin plate abutted seams. Has the advantages that: the utility model discloses simple structure, convenient to use, inner bag layer are formed by the welding of a plurality of pure nickel sheet metal piece, and the shell layer is made by the stainless steel, like this can be economic and practical's mode, effectively guarantees storage tank bearing capacity and high temperature resistant strong corrosive capacity to the life of storage tank has still been strengthened.

Description

High-temperature alkali liquor storage tank

Technical Field

The utility model belongs to the technical field of chemical industry equipment, in particular to high temperature alkali lye storage tank.

Background

In the chemical industry, the chemical storage tank is a common chemical equipment, and most of raw materials in the chemical field are chemicals such as high-temperature alkali liquor, and the chemicals have strong corrosion performance, so that strict requirements on pressure control, corrosion resistance, liquid level control and the like of the chemical storage tank are met, and accidents such as leakage of the chemicals are avoided.

The storage tank on the market at present mainly adopts the storage tank of SUS stainless steel material or titanium alloy material, brush on its inner wall anticorrosive coating to come corrosion resistance, and some storage tanks have inner bag structure, but the inner bag is made for PTFE material generally, and this kind of storage tank is just barely available below 100 ℃ at the liquid caustic soda concentration below 50%, according to the corrosion performance table: the corrosion rate is more than 0.127 mm/year.

The temperature of the liquid caustic soda concentration is more than 50 percent and the temperature is more than 100 degrees, no reference data exists on the market, the corrosion rate of the stainless steel and titanium alloy storage tank container is higher than 0.127 mm/year and is completely unavailable, the temperature resistance of the PTFE liner is less than 100 degrees, and when the temperature of the alkaline soda is more than 100 degrees, the PTFE liner can be degummed and deformed and is unavailable.

At present, no high-concentration high-temperature liquid caustic soda container solution can be borne on the market, the utility model relates to a high-concentration, high-temperature container storage project is solved.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem and provides a high temperature liquid caustic soda storage tank with simple structure, high temperature resistance and strong corrosion resistance.

The technical scheme is that the high-temperature alkali liquor storage tank comprises a tank body, wherein the tank body is supported on the ground through supporting legs arranged at the bottom of the tank body, the top of the tank body is provided with a manhole, an air inlet and return port and a liquid inlet, and the bottom of the tank body is provided with a drain outlet and a liquid outlet; the tank body is of a three-layer structure from outside to inside: outer shell, vacuum layer and inner bag layer the outer wall on outer shell is gone up the annular equidistance and is equipped with a plurality of reservation test ports, reserve the test port and communicate to the vacuum layer, the outer shell is stainless steel outer shell, the inner bag layer is formed by the welding of a plurality of pure nickel sheet metal piece.

As a further improvement, a plurality of welding beads are formed in the splicing welding of the pure nickel thin plates, protective patch plates are further welded on the welding beads, and the protective patch plates are made of pure nickel thin plates.

As a further improvement, an anticorrosive epoxy paint layer is sprayed on the surface of the stainless steel outer shell layer.

As a further improvement, a liquid inlet pipe is also arranged in the tank body, the liquid inlet pipe is inserted into the tank body from the liquid inlet, and the insertion depth of the liquid inlet pipe is 70-80cm away from the bottom of the tank body.

As a further improvement, a liquid level meter cleaning pipe communicated with the visual liquid level meter is arranged at the bottom of the visual liquid level meter.

As a further improvement, a liquid level meter protective shell is further sleeved on the visual liquid level meter, and the upper end and the lower end of the liquid level meter protective shell are fixed on the outer wall of the tank body through connecting supports.

As a further improvement, a plurality of guardrail connecting points are further arranged on the outer wall of the top of the tank body in an annular mode and used for installing guardrails.

As a further improvement, a protective cage is covered outside the tank body, and a ladder stand for personnel to climb to the top of the tank body is installed on the protective cage.

Advantageous effects

The beneficial effects are that: the utility model discloses simple structure, convenient to use, inner bag layer are formed by the welding of a plurality of pure nickel sheet metal piece, and the shell layer is made by the stainless steel, like this can be economic and practical's mode, effectively guarantees storage tank bearing capacity and high temperature resistant strong corrosive capacity to the life of storage tank has still been strengthened.

Drawings

The present invention will be further described with reference to the accompanying drawings and embodiments.

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

fig. 2 is a partially enlarged view of portion a of fig. 1:

FIG. 3 is an enlarged view of a portion B of FIG. 1;

fig. 4 is a schematic view of the protective cage mounting structure of the present invention.

Reference numbers in the figures:

1. can 101, shell 102, vacuum layer

103. Inner container layer 1031, welding bead 1032 and protection patch plate

2. Supporting leg 3, manhole 4, air inlet and return port

5. A liquid inlet 6, a sewage draining outlet 7 and a liquid outlet

8. Visual liquid level meter 9, liquid level meter cleaning pipe 10 and liquid level meter protective shell

11. Connecting bracket 12, reserved test port 13 and liquid inlet pipe

14. Guardrail connecting point 15, protective cage 16 and ladder stand

Detailed Description

In order to further understand and appreciate the structural features and advantages of the present invention, preferred embodiments and the accompanying drawings are described in detail as follows:

as shown in figure 1, a high temperature alkali lye storage tank, which comprises a tank body 1, jar body 1 supports subaerially through supporting leg 2 at its bottom installation, top at jar body 1 is equipped with manhole 3, air inlet and return port 4 and inlet 5, bottom at jar body 1 is equipped with drain 6 and liquid outlet 7, and all install manual valve in drain 6 and liquid outlet 7 department, conveniently open drain 6 or liquid outlet 7 at any time, install visual level gauge 8 on jar body 1's outer wall, visual level gauge 8 communicates with jar body 1's inside, manhole 3, air inlet and return port 4, inlet 5, drain 6, liquid outlet 7 and visual level gauge 8 all handle through high temperature resistant strong corrosion resistant. Install the level gauge scavenge pipe 9 with the communication of visual level gauge 8 in the bottom of visual level gauge 8, be convenient for wash visual level gauge, make visual level gauge 8 keep for a long time observing the state of the internal liquid level change state of jar, it is equipped with level gauge protective housing 10 still to overlap on visual level gauge 8, level gauge protective housing 10 upper and lower both ends are all fixed on the outer wall of the jar body 1 through linking bridge 11, avoid visual level gauge 8 to receive bad weather influence rotten or drop, influence the normal use of storage tank.

The liquid inlet pipe 13 is arranged in the tank body 1, and the liquid inlet pipe 13 is inserted into the tank body 1 from the liquid inlet 5 after being subjected to high-temperature and strong corrosion resistant treatment, wherein the insertion depth of the liquid inlet pipe is 70-80cm away from the bottom of the tank body 1, so that liquid splashing is prevented when liquid is added.

The tank body 1 has the following three-layer structure from outside to inside as shown in fig. 2-3: the vacuum testing device comprises an outer shell layer 101, a vacuum layer 102 and an inner container layer 103, wherein a plurality of reserved testing ports 12 are circumferentially arranged on the outer wall of the outer shell layer 101 at equal intervals, and the reserved testing ports 12 are communicated with the vacuum layer 102 and are used for detecting the vacuum state of the vacuum layer 102; the outer shell layer 101 is a stainless steel outer shell layer, and an anticorrosive epoxy paint layer is further sprayed on the outer surface of the stainless steel outer shell layer after rust removal treatment, and mainly has the functions of bearing, fixing and protecting the inner container layer; the inner container layer 103 is formed by welding a plurality of pure nickel thin plates in a splicing way, and the pure nickel thin plates have the standard of more than N6 grade, have extremely strong corrosivity and high temperature resistance, and have high tensile strength. A plurality of welding beads 1031 are formed by welding a plurality of pure nickel thin plates in a splicing manner, a protection patch plate 1032 is further welded on the welding beads 1031, the protection patch plate 1032 is made of the pure nickel thin plates, the tightness of the inner container layer 103 is further enhanced, and the service life of the storage tank is further prolonged.

As the volume of the general tank body is very large, as shown in figure 4, a plurality of guardrail connecting points 14 are further arranged on the outer wall of the top of the tank body 1 in an annular mode and used for installing guardrails and protecting the safety of personnel in the manual liquid adding process. A protective cage 15 is covered outside the tank body 1, and a ladder stand 16 for people to climb to the top of the tank body 1 is arranged on the protective cage 15.

In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and all equivalent changes and modifications of the shapes, structures, features and spirit described in the claims of the present invention should be included in the scope of the present invention.

Claims

1. A high-temperature alkali liquor storage tank comprises a tank body, wherein the tank body is supported on the ground through a supporting leg arranged at the bottom of the tank body, the top of the tank body is provided with a manhole, an air inlet and return port and a liquid inlet, and the bottom of the tank body is provided with a drain outlet and a liquid outlet; the tank body is of a three-layer structure from outside to inside: outer shell, vacuum layer and inner bag layer the outer wall on outer shell is gone up the annular equidistance and is equipped with a plurality of reservation test ports, reserve the test port and communicate to the vacuum layer, the outer shell is stainless steel outer shell, the inner bag layer is formed by the welding of a plurality of pure nickel sheet metal piece.

2. The high-temperature alkaline storage tank as claimed in claim 1, wherein the pure nickel thin plates are welded together to form a plurality of welding beads, and a protective patch is welded to the welding beads, and the protective patch is made of pure nickel thin plates.

3. The high-temperature lye storage tank of claim 1 wherein the exterior of said stainless steel outer shell is also painted with a layer of anti-corrosive epoxy paint.

4. The high-temperature alkali liquor storage tank as claimed in claim 1, wherein a liquid inlet pipe is further arranged inside the tank body, the liquid inlet pipe is inserted into the tank body from the liquid inlet, and the insertion depth of the liquid inlet pipe is 70-80cm from the bottom of the tank body.

5. The high-temperature lye storage tank of claim 1 wherein a level meter cleaning pipe communicating with the visual level meter is mounted at the bottom of said visual level meter.

6. The high-temperature alkali liquor storage tank as claimed in claim 1, wherein a liquid level gauge protective shell is further sleeved on the visual liquid level gauge, and the upper end and the lower end of the liquid level gauge protective shell are fixed on the outer wall of the tank body through connecting supports.

7. The high-temperature lye storage tank of claim 1 wherein there are further provided circumferentially a plurality of guardrail attachment points on the outer wall of the top of said tank body for mounting guardrails.

8. The high-temperature alkali liquor storage tank as claimed in claim 1, wherein a protective cage is covered outside the tank body, and a ladder for people to climb to the top of the tank body is installed on the protective cage.