A concentrated sulfuric acid dehydrator

Abstract

The utility model relates to the technical field of chemical equipment discloses a concentrated sulfuric acid dehydrator, including the storage bucket, the storage bucket right -hand member is equipped with the discharge pipe no.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a concentrated sulfuric acid dehydrator. Background Technology

[0002] Concentrated sulfuric acid is an important chemical raw material with wide applications in various industries. It is typically stored in sulfuric acid storage tanks. To balance the internal pressure of the tank with atmospheric pressure, these tanks are usually exposed to air. However, concentrated sulfuric acid, especially 98% concentration, is highly hygroscopic. The sulfuric acid in the tank readily comes into contact with moisture in the air, mixing and releasing heat. This heat accelerates the volatilization of SO3 in the sulfuric acid. The volatilized SO3 reacts with moisture in the air to form sulfuric acid droplets and acid mist, which not only harms humans and vegetation but also causes pressure and corrosive damage to the storage tank. To prevent the concentrated sulfuric acid in the tank from coming into contact with moisture in the air and causing safety hazards, automatic sulfuric acid dehydrators are usually installed around the tanks.

[0003] Most existing dehydrators use 98% concentrated sulfuric acid as the absorbent. To avoid creating significant negative and positive pressures inside the device during dehydration, the longitudinal dehydration distance of air passing through the concentrated sulfuric acid is relatively small, generally controlled at 30mm. When the concentrated sulfuric acid in the storage tank is pumped out, and the atmosphere compensates for the pressure difference inside and outside the storage tank, the short contact distance between the atmosphere and the concentrated sulfuric acid in the dehydrator results in low dehydration efficiency, with a large amount of water still entering the storage tank for reaction. To address this technical problem, this application proposes a concentrated sulfuric acid dehydrator. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a concentrated sulfuric acid dehydrator. When outside air enters the device to balance the air pressure, it is divided into multiple uniform airflows by the action of the internal baffle of the connecting pipe and enters the main body of the dehydrator at a reduced speed, thus avoiding excessive pressure inside the device. At the same time, it passes laterally through a relatively long section of the absorbent liquid, ensuring the processing time of the absorbent liquid on the gas and improving the dehydration effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A concentrated sulfuric acid dehydrator includes a storage tank, a discharge pipe extending through the right end of the storage tank, a pump body mounted on the outer wall of the discharge pipe, a support frame fixedly connected to the left end of the storage tank, fixing blocks fixedly connected to both the left and right sides of the top of the support frame, a dehydrator body fixedly connected to the top of the fixing blocks, an air inlet assembly mounted on the left side of the top of the dehydrator body, a sealing assembly mounted on the right side of the top of the dehydrator body, a connecting pipe extending through the right end of the dehydrator body, and a discharge assembly mounted at the bottom of the dehydrator body.

[0006] Furthermore, the air intake assembly includes a connecting pipe passing through the top of the dehydrator body, an air intake pipe being provided at the top of the connecting pipe, a breather valve being provided on the outer wall of the air intake pipe, and a partition being fixedly connected to the inner wall of the connecting pipe.

[0007] Furthermore, both the connecting pipe and the outer wall of the intake pipe are fixedly connected to flanges, and the two flanges are connected by bolts.

[0008] Furthermore, the sealing assembly includes a cover plate that snaps onto the right side of the top of the dehydrator body, mounting blocks two are fixedly connected to the right sides of both the front and rear ends of the dehydrator body, and mounting blocks one are fixedly connected to both the front and rear ends of the cover plate.

[0009] Furthermore, the first mounting block and the second mounting block are connected by bolts, and an observation window is fixedly connected to the right side of the front end of the dehydrator body.

[0010] Furthermore, the discharge assembly includes a discharge pipe II located at the bottom of the dehydrator body, a control valve is provided on the outer wall of the discharge pipe II, and the other end of the discharge pipe II is located at the left end of the storage tank.

[0011] Furthermore, the other end of the connecting pipe is inserted through the top of the storage tank, and a feed inlet is provided on the right side of the top of the storage tank.

[0012] This utility model has the following beneficial effects: 1. In this utility model, when the outside air enters the device to balance the air pressure, it will be divided into multiple uniform airflows under the action of the baffle inside the connecting pipe and enter the dehydrator body at a reduced speed, so as to avoid causing a large pressure inside the device. At the same time, it will pass laterally through a long distance inside the absorbent liquid, ensuring the processing time of the absorbent liquid on the gas and improving the dehydration effect.

[0013] 2. In this utility model, the user can control the opening of the control valve to inject the diluted absorbent liquid into the storage tank through the discharge pipe 2, and use tools to remove the bolts used to connect the mounting block 1 and the mounting block 2. Then, the cover plate is removed from the inner wall of the right side of the top of the dehydrator body, and absorbent liquid is added to the dehydrator body until the liquid level reaches the bottom of the observation window. Replacing the absorbent liquid is very convenient. Attached Figure Description

[0014] Figure 1 This is a perspective view of a concentrated sulfuric acid dehydrator proposed in this utility model; Figure 2 This is a schematic diagram of the support frame in a concentrated sulfuric acid dehydrator proposed in this utility model; Figure 3 This is a schematic diagram of the connecting pipe in a concentrated sulfuric acid dehydrator proposed in this utility model.

[0015] Legend: 1. Storage tank; 2. Discharge pipe one; 3. Pump body; 4. Support frame; 5. Discharge pipe two; 6. Control valve; 7. Fixing block; 8. Dehydrator body; 9. Connecting pipe; 10. Air inlet pipe; 11. Breathing valve; 12. Flange; 13. Cover plate; 14. Connecting pipe; 15. Observation window; 16. Mounting block one; 17. Mounting block two; 18. Partition plate. Detailed Implementation

[0016] 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.

[0017] Reference Figure 1-3 This utility model provides an embodiment of a concentrated sulfuric acid dehydrator, comprising a storage tank 1, a discharge pipe 2 passing through the right end of the storage tank 1, a pump body 3 mounted on the outer wall of the discharge pipe 2, a support frame 4 fixedly connected to the left end of the storage tank 1, fixing blocks 7 fixedly connected to both sides of the top of the support frame 4, a dehydrator body 8 fixedly connected to the top of the fixing blocks 7, an air intake assembly provided on the left side of the top of the dehydrator body 8, the air intake assembly including a connecting pipe 9 passing through the top of the dehydrator body 8, an air inlet pipe 10 provided at the top of the connecting pipe 9, a breather valve 11 mounted on the outer wall of the air inlet pipe 10, and a fixed valve 11 on the inner wall of the connecting pipe 9. A partition plate 18 is connected, and flanges 12 are fixedly connected to the outer walls of the connecting pipe 9 and the air inlet pipe 10. The two flanges 12 are connected by bolts. A sealing assembly is provided on the right side of the top of the dehydrator body 8. The sealing assembly includes a cover plate 13 that is snapped on the right side of the top of the dehydrator body 8. Mounting blocks 2 17 are fixedly connected to the right sides of both the front and rear ends of the dehydrator body 8. Mounting blocks 16 are fixedly connected to both the front and rear ends of the cover plate 13. Mounting blocks 16 and mounting blocks 2 17 are connected by bolts. An observation window 15 is fixedly connected to the right side of the front end of the dehydrator body 8. A connecting pipe 14 passes through the right end of the dehydrator body 8. Specifically, when the concentrated sulfuric acid stored in the storage tank 1 is extracted through the pump body 3 and the discharge pipe 2, the air pressure inside the storage tank 1 will decrease. After the air pressure decreases to the threshold set by the breather valve 11, the outside air will push the valve core inside the breather valve 11 into the connecting pipe 9 along the air inlet pipe 10. Then, under the action of the baffle 18 inside the connecting pipe 9, it is divided into multiple uniform airflows and enters the dehydrator body 8 at a reduced speed. Then, it is dehydrated by the absorbent liquid inside the dehydrator body 8, and then enters the storage tank 1 along the connecting pipe 14 to balance the air pressure. When the gas enters the dehydrator body 8, it will pass laterally through a relatively long distance inside the absorbent liquid, ensuring the processing time of the absorbent liquid on the gas and improving the dehydration effect. All metal parts inside the device that come into contact with sulfuric acid are lead-plated to avoid sulfuric acid corrosion of the metal parts and leakage.

[0018] The bottom of the dehydrator body 8 is provided with a discharge component, which includes a discharge pipe 2 5 passing through the bottom of the dehydrator body 8. A control valve 6 is provided on the outer wall of the discharge pipe 2 5. The other end of the discharge pipe 2 5 passes through the left end of the storage tank 1, and the other end of the connecting pipe 14 passes through the top of the storage tank 1. A feed inlet is provided on the right side of the top of the storage tank 1. Specifically, the absorbent inside the dehydrator body 8 is 98% concentrated sulfuric acid, which has good water absorption properties. After its concentration decreases and it no longer has water absorption properties, it can be directly fed into the storage tank 1 through the discharge pipe 2 5 for recycling. Since the sulfuric acid volume inside the dehydrator body 8 only accounts for a small part of the storage tank 1, it will not have a significant impact on the sulfuric acid concentration in the storage tank 1.

[0019] Working Principle: In actual use, when the concentrated sulfuric acid stored in the storage tank 1 is extracted through the pump body 3 and the discharge pipe 2, the air pressure inside the storage tank 1 will decrease. Once the air pressure drops to the threshold set by the breather valve 11, the outside air will push the valve core inside the breather valve 11 into the connecting pipe 9 along the air inlet pipe 10. Then, under the action of the baffle 18 inside the connecting pipe 9, it is divided into multiple uniform airflows and enters the dehydrator body 8 at a reduced speed. Subsequently, it is dehydrated by the absorbent liquid inside the dehydrator body 8, and then enters the storage tank 1 along the connecting pipe 14 to balance the air pressure. Because the absorbent liquid inside the dehydrator body 8 reacts with the moisture in the air... Afterwards, its volume will increase. Users can observe the liquid level inside the dehydrator body 8 through the observation window 15 set on the dehydrator body 8. When the liquid level rises to the uppermost side of the observation window 15, it indicates that the concentration of the absorbent liquid has dropped to below 70% and no longer has good water absorption. At this time, the user can control the control valve 6 to open and inject the diluted absorbent liquid into the storage tank 1 through the discharge pipe 2 5. Then, use tools to remove the bolts used to connect the mounting block 1 16 and the mounting block 2 17. Afterwards, remove the cover plate 13 from the inner wall of the right side of the top of the dehydrator body 8 and add absorbent liquid to the dehydrator body 8 until the liquid level reaches the lowermost side of the observation window 15.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concentrated sulfuric acid dehydrator, comprising a storage tank (1), characterized in that: The storage tank (1) is provided with a discharge pipe (2) on the right end. A pump body (3) is provided on the outer wall of the discharge pipe (2). A support frame (4) is fixedly connected to the left end of the storage tank (1). Fixing blocks (7) are fixedly connected to the top left and right sides of the support frame (4). A dehydrator body (8) is fixedly connected to the top of the fixing blocks (7). An air intake component is provided on the top left side of the dehydrator body (8). A sealing component is provided on the top right side of the dehydrator body (8). A connecting pipe (14) is provided on the right end of the dehydrator body (8). A discharge component is provided at the bottom end of the dehydrator body (8).

2. The concentrated sulfuric acid dehydrator according to claim 1, characterized in that: The air intake assembly includes a connecting pipe (9) passing through the top of the dehydrator body (8), an air intake pipe (10) is provided at the top of the connecting pipe (9), a breathing valve (11) is provided on the outer wall of the air intake pipe (10), and a partition (18) is fixedly connected to the inner wall of the connecting pipe (9).

3. A concentrated sulfuric acid dehydrator according to claim 2, characterized in that: The connecting pipe (9) and the outer wall of the air inlet pipe (10) are both fixedly connected with flanges (12), and the two flanges (12) are connected by bolts.

4. A concentrated sulfuric acid dehydrator according to claim 1, characterized in that: The sealing assembly includes a cover plate (13) that is snapped onto the right side of the top of the dehydrator body (8). Mounting blocks two (17) are fixedly connected to the right sides of both the front and rear ends of the dehydrator body (8), and mounting blocks one (16) are fixedly connected to both the front and rear ends of the cover plate (13).

5. A concentrated sulfuric acid dehydrator according to claim 4, characterized in that: The first mounting block (16) and the second mounting block (17) are connected by bolts, and an observation window (15) is fixedly connected to the right side of the front end of the dehydrator body (8).

6. A concentrated sulfuric acid dehydrator according to claim 1, characterized in that: The discharge assembly includes a discharge pipe 2 (5) located at the bottom of the dehydrator body (8), a control valve (6) is provided on the outer wall of the discharge pipe 2 (5), and the other end of the discharge pipe 2 (5) is located at the left end of the storage tank (1).

7. A concentrated sulfuric acid dehydrator according to claim 6, characterized in that: The other end of the connecting pipe (14) is inserted through the top of the storage tank (1), and the storage tank (1) has a feed inlet on the right side of the top.

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