Liquid sealing device at top of hydrochloric acid storage tank

Abstract

The utility model discloses a hydrochloric acid storage tank top liquid sealing device which comprises a liquid sealing tank, the liquid sealing tank is arranged on the top of a hydrochloric acid storage tank in a communicated mode, and the liquid sealing tank and the hydrochloric acid storage tank are separated in a sealed mode through a sealing partition plate. A liquid sealing pipe with a bent structure is mounted in the liquid sealing tank, a lower port of the liquid sealing pipe penetrates through the sealing partition plate and extends into the hydrochloric acid storage tank, and a liquid sealing medium is filled in the liquid sealing tank and covers an upper port of the liquid sealing pipe; a pressure reduction exhaust pipe communicated with the liquid seal pipe is arranged on the side part of the liquid seal pipe, extends to the outside of the liquid seal tank, and is provided with a valve; the top of the liquid sealing tank is communicated with a feeding pipe, and the top of the feeding pipe is provided with an end cover for sealing. The liquid sealing device provided by the utility model has good sealing performance, ensures that too large negative pressure does not exist in the hydrochloric acid storage tank, and can collect hydrochloric acid waste gas and avoid acid gas leakage.

Description

Technical Field

[0001] The utility model relates to a liquid sealing device, in particular to a liquid sealing device on the top of a hydrochloric acid storage tank, belonging to the technical field of storage tank sealing. Background Art

[0002] In industry, the acid mist absorption tower or water-sealed tank is generally used to treat the volatilized hydrogen chloride gas in the hydrochloric acid storage tank. The hydrochloric acid storage tank is a tank specially used to hold hydrochloric acid, sulfuric acid and other highly corrosive substances. It can be made of plastic or fiberglass. The hydrochloric acid storage tanks made of plastic can be packaged into small barrels for sale, and the hydrochloric acid storage tanks made of fiberglass are generally produced to be able to be stored for a long time.

[0003] The existing hydrochloric acid storage tank is relatively traditional in design, and is just an ordinary storage tank structure made of fiberglass. After this ordinary hydrochloric acid storage tank is filled with industrial hydrochloric acid, the hydrogen chloride gas volatilized in the tank will continue to increase the pressure inside the hydrochloric acid storage tank. Too much negative pressure will increase the risk of leakage, causing air pollution and leading to poor environmental protection.

[0004] In summary, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the deficiencies in the background technology, the utility model provides a hydrochloric acid storage tank top liquid sealing device, which has good sealing performance, ensures that there is not too much negative pressure in the hydrochloric acid storage tank, and can collect hydrochloric acid waste gas to avoid leakage of acid gas.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A hydrochloric acid storage tank top liquid sealing device comprises a liquid sealing tank, which is connected and arranged on the top of the hydrochloric acid storage tank, and the liquid sealing tank and the hydrochloric acid storage tank are sealed and blocked by a sealing partition;

[0008] A liquid sealing pipe with a curved structure is installed inside the liquid sealing tank, the lower end of the liquid sealing pipe passes through the sealing partition and extends to the inside of the hydrochloric acid storage tank, and a liquid sealing medium is filled inside the liquid sealing tank, and the liquid sealing medium submerges and covers the upper end of the liquid sealing pipe;

[0009] A pressure-reducing exhaust pipe is provided on the side of the liquid sealing pipe and is connected thereto. The pressure-reducing exhaust pipe extends to the outside of the liquid sealing tank, and a valve is installed on the pressure-reducing exhaust pipe.

[0010] The top of the liquid seal tank is connected with a feed pipe, and the top of the feed pipe is provided with an end cover for sealing.

[0011] As a further optimization of the technical solution, the hydrochloric acid storage tank, the liquid-sealed tank and the feed pipe are all made of fiberglass, and the hydrochloric acid storage tank, the liquid-sealed tank and the feed pipe are all integral structures.

[0012] As a further optimization of the technical solution, the liquid sealing tube and the sealing partition are both made of PVC plastic material, the liquid sealing tube and the sealing partition are sealed and connected by welding, and the sealing partition is sealed and fixed to the inner wall of the liquid sealing tank by an adhesive.

[0013] As a further optimization of the technical solution, the pressure-reducing exhaust pipe is made of PVC plastic material, the pressure-reducing exhaust pipe is sealed and connected to the liquid sealing pipe by welding, and the pressure-reducing exhaust pipe is sealed and connected to the yield hole of the liquid sealing tank by an adhesive.

[0014] As a further optimization of the technical solution, the end cover is made of PVC plastic material, the end cover is connected to the feed pipe through threads, and a sealing gasket is installed inside the end cover.

[0015] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0016] The hydrochloric acid waste gas volatilized from the hydrochloric acid in the hydrochloric acid storage tank will enter the liquid seal tank from the liquid seal pipe, and the hydrochloric acid waste gas is incompatible with the liquid liquid seal medium in the liquid seal tank, which can play a good sealing role and effectively prevent the hydrochloric acid waste gas from leaking. The operator can open the valve regularly to discharge the hydrochloric acid waste gas from the pressure-reducing exhaust pipe to a designated container for storage, which can effectively reduce the pressure inside the hydrochloric acid storage tank, avoid cracking of the hydrochloric acid storage tank, and improve the safety of the hydrochloric acid storage tank. The liquid seal device provided by the utility model has good sealing performance, ensures that there will not be too much negative pressure in the hydrochloric acid storage tank, and can collect hydrochloric acid waste gas to prevent acid gas from leaking.

[0017] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0020] Among them, 1-hydrochloric acid storage tank, 2-liquid sealing tank, 3-liquid sealing pipe, 4-sealing partition, 5-pressure reduction exhaust pipe, 6-valve, 7-feeding pipe, 8-end cover, 9-liquid sealing medium. DETAILED DESCRIPTION

[0021] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0022] like Figure 1 and Figure 2As shown together, the utility model provides a hydrochloric acid storage tank top liquid sealing device, including a liquid sealing tank 2, the liquid sealing tank 2 is connected and arranged on the top of the hydrochloric acid storage tank 1, and the liquid sealing tank 2 and the hydrochloric acid storage tank 1 are sealed and separated by a sealing partition 4.

[0023] A curved liquid sealing pipe 3 is installed inside the liquid sealing tank 2 , and a lower end of the liquid sealing pipe 3 passes through a sealing partition 4 and extends to the inside of the hydrochloric acid storage tank 1 .

[0024] The liquid sealing tank 2 is filled with a liquid sealing medium 9 , and the liquid sealing medium 9 submerges and covers the upper end of the liquid sealing tube 3 .

[0025] A pressure reducing exhaust pipe 5 is provided on the side of the liquid sealing pipe 3 and is connected thereto. The pressure reducing exhaust pipe 5 extends to the outside of the liquid sealing tank 2 , and a valve 6 for controlling the interruption of air flow is installed on the pressure reducing exhaust pipe 5 .

[0026] The top of the liquid seal tank 2 is connected with a feed pipe 7, and the top of the feed pipe 7 is provided with an end cover 8 for sealing.

[0027] The hydrochloric acid storage tank 1, the liquid-sealed tank 2 and the feed pipe 7 are all made of glass fiber reinforced plastics, which are strong and durable, cheap and have good corrosion resistance. The hydrochloric acid storage tank 1, the liquid-sealed tank 2 and the feed pipe 7 are all integral structures.

[0028] The liquid sealing tube 3 and the sealing partition 4 are both made of PVC plastic material, which is durable and has good corrosion resistance. The liquid sealing tube 3 and the sealing partition 4 are sealed and connected by welding, and the sealing partition 4 is sealed and fixed on the inner wall of the liquid sealing tank 2 by an adhesive.

[0029] The pressure-reducing exhaust pipe 5 is made of PVC plastic material, which is durable and has good corrosion resistance. The pressure-reducing exhaust pipe 5 is sealed and connected to the liquid sealing pipe 3 by welding, and the pressure-reducing exhaust pipe 5 is sealed and connected to the yield hole of the liquid sealing tank 2 by an adhesive.

[0030] The end cover 8 is made of PVC plastic material, which is strong, durable and has good corrosion resistance. The end cover 8 is connected to the feed pipe 7 through threads, and a sealing gasket is installed inside the end cover 8.

[0031] A feed pump is installed inside the hydrochloric acid storage tank 1. When the feed pump is turned on, there will be negative pressure when the liquid is discharged. At the same time, opening the valve 6 can discharge the hydrochloric acid waste gas from the pressure-reducing exhaust pipe 5 to a designated container for storage, thereby solving the negative pressure problem inside the hydrochloric acid storage tank 1.

[0032] The specific working principle of this utility model:

[0033] Industrial hydrochloric acid can be loaded into the hydrochloric acid storage tank 1, and the hydrochloric acid waste gas volatilized by the hydrochloric acid will enter the liquid seal tank 2 from the liquid seal pipe 3. The hydrochloric acid waste gas is incompatible with the liquid liquid seal medium 9 in the liquid seal tank 2, which can play a good sealing role and effectively prevent the leakage of the hydrochloric acid waste gas. The operator can regularly open the valve 6 to discharge the hydrochloric acid waste gas from the pressure-reducing exhaust pipe 5 to a designated container for storage, which can effectively reduce the pressure inside the hydrochloric acid storage tank 1, avoid the cracking problem of the hydrochloric acid storage tank 1, and improve the safety of the hydrochloric acid storage tank 1.

[0034] The liquid sealing device provided by the utility model has good sealing performance, which ensures that there will not be too much negative pressure in the hydrochloric acid storage tank 1, and can collect hydrochloric acid waste gas to prevent the acid gas from leaking.

[0035] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. The top liquid seal device of hydrochloric acid storage tank is characterized by: The liquid sealing tank (2) is connected to the top of the hydrochloric acid storage tank (1), and the liquid sealing tank (2) and the hydrochloric acid storage tank (1) are sealed and blocked by a sealing partition (4); A liquid sealing tube (3) with a curved structure is installed inside the liquid sealing tank (2), and the lower end of the liquid sealing tube (3) passes through the sealing partition (4) and extends into the hydrochloric acid storage tank (1). The liquid sealing tank (2) contains a liquid sealing medium (9), and the liquid sealing medium (9) submerges and covers the upper end of the liquid sealing tube (3); A pressure-reducing exhaust pipe (5) is provided on the side of the liquid sealing pipe (3) and is in communication with the liquid sealing pipe (3). The pressure-reducing exhaust pipe (5) extends to the outside of the liquid sealing tank (2), and a valve (6) is installed on the pressure-reducing exhaust pipe (5). The top of the liquid seal tank (2) is connected to a feed pipe (7), and the top of the feed pipe (7) is provided with an end cover (8) for sealing.

2. The hydrochloric acid storage tank top liquid sealing device according to claim 1, characterized in that: The hydrochloric acid storage tank (1), the liquid-sealed tank (2) and the feed pipe (7) are all made of glass fiber reinforced plastics, and the hydrochloric acid storage tank (1), the liquid-sealed tank (2) and the feed pipe (7) are all integral structures.

3. The hydrochloric acid storage tank top liquid sealing device according to claim 1, characterized in that: The liquid sealing tube (3) and the sealing partition (4) are both made of PVC plastic material. The liquid sealing tube (3) and the sealing partition (4) are sealed and connected by welding, and the sealing partition (4) is sealed and fixed to the inner wall of the liquid sealing tank (2) by an adhesive.

4. The hydrochloric acid storage tank top liquid sealing device according to claim 1, characterized in that: The pressure-reducing exhaust pipe (5) is made of PVC plastic material, and is sealedly connected to the liquid sealing pipe (3) by welding. The pressure-reducing exhaust pipe (5) is sealedly connected to the clearance hole of the liquid sealing tank (2) by an adhesive.

5. The hydrochloric acid storage tank top liquid sealing device according to claim 1, characterized in that: The end cover (8) is made of PVC plastic material, the end cover (8) is connected to the feed pipe (7) via threads, and a sealing gasket is installed inside the end cover (8).

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