Pure acid tank u-shaped liquid seal structure

Abstract

The utility model discloses a pure acid tank U type liquid seal structure, including U type liquid seal pipe, one end of U type liquid seal pipe connects the air inlet pipe, and the other end connects the air outlet pipe, the air inlet pipe and air outlet pipe all are through the connecting assembly with U type liquid seal pipe sealed connection, be equipped with sealed liquid in the U type liquid seal pipe, the sealed separation of sealed liquid between the air inlet pipe and air outlet pipe, the connecting assembly includes the connecting buckle and the connecting snap, the connecting buckle is with the coaxial fixed connection of U type liquid seal pipe, the outer diameter of connecting buckle is greater than the outer diameter of U type liquid seal pipe, the circumference array of connecting buckle is equipped with a plurality of slot, this pure acid tank U type liquid seal structure can effectively avoid acid gas leakage, and the security is strong, and the whole is convenient to dismount, is beneficial to the injection of sealed liquid and is suitable for promotion and use.

Description

Technical Field

[0001] This utility model relates to the field of chemical technology, and in particular to a U-shaped liquid seal structure for a pure acid tank. Background Technology

[0002] HCl gas is highly corrosive and toxic. In industrial settings involving HCl gas treatment, such as chemical, pharmaceutical, and metallurgical industries, leaks can not only endanger the health of operators and pollute the environment, but also corrode surrounding equipment, shortening its lifespan. In addition, they can cause material waste and increase production costs. Therefore, workshops pay special attention to the sealing of acid tanks.

[0003] Traditional sealing methods include mechanical seals and packing seals. Mechanical seals are prone to aging and wear after prolonged use, resulting in poor sealing performance. Packing seals, on the other hand, are usually more complex in structure, making them difficult to disassemble and assemble, and the packing is also difficult to replenish or remove, resulting in unsatisfactory performance. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by providing a U-shaped liquid seal structure for a pure acid tank that can effectively prevent acid gas leakage, has high safety, is easy to disassemble and assemble, and facilitates the injection and discharge of sealing liquid.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a U-shaped liquid seal structure for a pure acid tank, comprising a U-shaped liquid seal tube, one end of which is connected to an inlet pipe and the other end of which is connected to an outlet pipe. Both the inlet pipe and the outlet pipe are sealed to the U-shaped liquid seal tube through a connecting assembly. The U-shaped liquid seal tube contains a sealing liquid, and the inlet pipe and the outlet pipe are isolated and sealed by the sealing liquid.

[0006] Preferably, the connecting assembly includes a connecting buckle and a connecting clip. The connecting buckle is coaxially and fixedly connected to the U-shaped liquid seal tube. The outer diameter of the connecting buckle is larger than the outer diameter of the U-shaped liquid seal tube. The circumferential array of the connecting buckle has multiple slots, and an arc-shaped bend is formed between each two adjacent slots. The outer circumference of the arc-shaped bend is provided with external threads. The connecting clip is sleeved on the U-shaped liquid seal tube and is provided with internal threads. The connecting clip and the connecting buckle are engaged by threads.

[0007] Preferably, when the connecting buckle is adapted to the connecting buckle, the arc-shaped bending portion bends inward and deforms.

[0008] Preferably, the inner circumference of the connecting buckle is further provided with a sealing ring, which is a graphite gasket.

[0009] Preferably, the U-shaped liquid seal tube is further provided with a sealing fluid filling mechanism. The filling mechanism includes a first valve, one end of which is connected to the U-shaped liquid seal tube, and the other end is provided with a filling funnel. The sealing fluid enters the U-shaped liquid seal tube in the filling funnel.

[0010] Preferably, the U-shaped liquid seal tube is further provided with a drain pipe, which is located at the lowest point of the U-shaped liquid seal tube, and a second valve is provided at the end of the drain pipe.

[0011] This utility model discloses a U-shaped liquid seal structure for a pure acid tank, comprising a U-shaped liquid seal tube. One end of the U-shaped liquid seal tube is connected to an inlet pipe, and the other end is connected to an outlet pipe. Both the inlet and outlet pipes are sealed to the U-shaped liquid seal tube via a connecting assembly. The U-shaped liquid seal tube contains a sealing liquid, and the inlet and outlet pipes are isolated and sealed by the sealing liquid. The connecting assembly includes a connecting buckle and a connecting clip. The connecting buckle is coaxially and fixedly connected to the U-shaped liquid seal tube. The outer diameter of the connecting buckle is larger than the outer diameter of the U-shaped liquid seal tube, and the connecting buckle has multiple grooves arranged in a circumferential array. Compared with the prior art, this U-shaped liquid seal structure for a pure acid tank has the advantages of effectively preventing acid gas leakage, high safety, easy assembly and disassembly, and convenient injection and drainage of sealing liquid. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a U-shaped liquid seal structure for a pure acid tank according to this utility model. Figure 1 .

[0013] Figure 2 This is a schematic diagram of the overall structure of a U-shaped liquid seal structure for a pure acid tank according to this utility model. Figure 2 .

[0014] Figure 3 This is a schematic diagram showing the connection between the U-shaped liquid seal pipe, the inlet pipe, and the outlet pipe in the U-shaped liquid seal structure of a pure acid tank according to this utility model.

[0015] Figure 4 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0016] Figure 5 This is a schematic diagram illustrating the liquid sealing principle of a U-shaped liquid seal structure for a pure acid tank according to this utility model.

[0017] In the diagram: 1. U-shaped liquid seal pipe; 2. Air inlet pipe; 3. Air outlet pipe; 4. Connecting buckle; 41. Groove; 42. Arc-shaped bend; 43. Sealing ring; 44. Connecting buckle; 5. First valve; 51. Filling funnel; 6. Drain pipe; 61. Second valve. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0019] Please refer to Figure 1-5A U-shaped liquid seal structure for a pure acid tank includes a U-shaped liquid seal pipe 1. One end of the U-shaped liquid seal pipe 1 is connected to an air inlet pipe 2, and the other end is connected to an air outlet pipe 3. The air inlet pipe 2 and the air outlet pipe 3 are both sealed to the U-shaped liquid seal pipe 1 through a connecting assembly. The U-shaped liquid seal pipe 1 is filled with a sealing liquid, and the air inlet pipe 2 and the air outlet pipe 3 are isolated and sealed by the sealing liquid.

[0020] In this embodiment, the U-shaped liquid seal tube 1 is made of polytetrafluoroethylene, fiberglass, special stainless steel or other corrosion-resistant materials to avoid corrosion by acidic gases during use; wherein the inner diameter of the U-shaped liquid seal tube 1 is 50-100.

[0021] The other end of the air inlet pipe 2 is connected to the pure acid tank, specifically the HCl gas tank. The U-shaped liquid seal pipe 1 can effectively prevent HCl gas leakage, reduce material consumption, and protect the surrounding personnel and equipment.

[0022] In this embodiment, the connecting assembly includes a connecting buckle 4 and a connecting snap 44. The connecting buckle 4 is coaxially and fixedly connected to the U-shaped liquid seal tube 1. The outer diameter of the connecting buckle 4 is larger than the outer diameter of the U-shaped liquid seal tube 1, and the connecting buckle 4 extends outward in a trumpet shape. The circumferential array of the connecting buckle 4 is provided with multiple slots 41, and an arc-shaped bend 42 is formed between each two adjacent slots 41. The arc-shaped bend 42 can undergo slight deformation inward after being squeezed by external force, and the outer circumference of the arc-shaped bend 42 is provided with external threads.

[0023] The connecting buckle 44 is sleeved on the U-shaped liquid seal tube 1 and has an internal thread. The internal thread on the connecting buckle 44 is adapted to the external thread on the connecting buckle 4, and the connecting buckle 44 and the connecting buckle 4 are connected by a thread.

[0024] Since the outer diameter of the connecting buckle 4 is larger than the outer diameter of the U-shaped liquid seal tube 1 and is flared, the air inlet pipe and the air outlet pipe are first inserted into the corresponding connecting buckle 4 during connection. When the connecting buckle 44 is screwed toward the air inlet pipe 2 or the air outlet pipe 3 (through the thread), the arc-shaped bend 42 will be squeezed by the connecting buckle 44 and move toward the inner axis. After moving toward the axis, the multiple arc-shaped bends 42 are tightly attached to the outer wall of the air inlet pipe 2 or the air outlet pipe 3, so that the U-shaped liquid seal tube 1 is tightly connected to the air inlet pipe 2 or the air outlet pipe 3, which not only ensures the seal but also facilitates the overall installation and disassembly.

[0025] Furthermore, in order to ensure the connection is airtight, a sealing ring 43 is provided on the inner circumference of the connecting buckle 4. After connection, the sealing ring 43 is located between the air inlet pipe 2 or the air outlet pipe 3 and the connecting buckle 4 to increase the airtightness.

[0026] As a preferred option, the sealing ring 43 is a graphite gasket, which has certain wear-resistant and protective properties.

[0027] In this embodiment, the U-shaped liquid seal tube 1 is also provided with a sealing fluid filling mechanism, which is used to add sealing fluid to the inside after the whole installation is completed. The filling mechanism includes a first valve 5, one end of the first valve 5 is connected to the U-shaped liquid seal tube 1, and the other end is provided with a filling funnel 51, in which the sealing fluid enters the U-shaped liquid seal tube 1.

[0028] In addition, the U-shaped liquid seal tube 1 is also provided with a drain pipe 6, which is located at the lowest point of the U-shaped liquid seal tube 1 to facilitate the complete and autonomous discharge of the internal sealing liquid, and a second valve 61 is provided at the end of the drain pipe 6.

[0029] Based on the above embodiments, the first valve 5 and the second valve 6 can be a gate valve, a ball valve, or other sealing valve body, as long as they can perform the function of sealing and opening / closing.

[0030] Based on the above embodiments, the inner walls of the first valve 5, the second valve 6, and the drain pipe 6 can also be coated with polyurethane coatings, polytetrafluoroethylene coatings, etc., to improve the overall corrosion resistance and extend the overall service life.

[0031] Based on the above embodiments, the sealing fluid can be a 20%-30% sodium hydroxide solution, which can neutralize a small amount of HCl gas, enhance the sealing effect, and prevent leakage; of course, industrial anti-corrosion sealing fluid can also be used.

[0032] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A U-shaped liquid seal structure for a pure acid tank, characterized in that, It includes a U-shaped liquid seal tube, one end of which is connected to an air inlet pipe and the other end to an air outlet pipe. Both the air inlet pipe and the air outlet pipe are sealed to the U-shaped liquid seal tube through a connecting assembly. The U-shaped liquid seal tube contains a sealing liquid, and the air inlet pipe and the air outlet pipe are isolated and sealed by the sealing liquid. The connecting assembly includes a connecting buckle and a connecting clip. The connecting buckle is coaxially and fixedly connected to the U-shaped liquid seal tube. The outer diameter of the connecting buckle is larger than the outer diameter of the U-shaped liquid seal tube. The connecting buckle has multiple slots arranged in a circumferential array. An arc-shaped bend is formed between each two adjacent slots. The outer circumference of the arc-shaped bend is provided with an external thread. The connecting clip is sleeved on the U-shaped liquid seal tube and is provided with an internal thread. The connecting clip and the connecting buckle are engaged by a thread. The U-shaped liquid seal tube is also provided with a sealing fluid filling mechanism. The filling mechanism includes a first valve. One end of the first valve is connected to the U-shaped liquid seal tube, and the other end is provided with a filling funnel. The sealing fluid enters the U-shaped liquid seal tube in the filling funnel. The U-shaped liquid seal pipe is also provided with a drain pipe, which is located at the lowest point of the U-shaped liquid seal pipe, and a second valve is provided at the end of the drain pipe.

2. The U-shaped liquid seal structure for the pure acid tank according to claim 1, characterized in that, When the connecting buckle is adapted to the connecting buckle, the arc-shaped bending part bends inward and deforms.

3. The U-shaped liquid seal structure for the pure acid tank according to claim 2, characterized in that, The inner circumference of the connecting buckle is also provided with a sealing ring, which is a graphite gasket.

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