Sulfuric acid concentration tower

Abstract

The utility model belongs to the technical field of sulfuric acid concentration, and discloses a sulfuric acid concentration tower which comprises a sulfuric acid concentration tower body, a plurality of mesh tower plates are mounted in the sulfuric acid concentration tower body, a pair of overflow weirs are mounted on two sides of the upper end face of each mesh tower plate, and a downcomer is mounted on one side of one overflow weir on the bottom end face of each mesh tower plate. The top end of the downcomer extends to the upper end face of the mesh tower plate, a plurality of through holes are formed in the surface of the mesh tower plate and between the pair of overflow weirs, a plurality of vent grooves are formed in the surface of the bent pipe, a supporting seat is mounted on the bottom end face of the bent pipe, and a threaded connector is mounted on the bottom end face of the supporting seat. The device is simple and reasonable in structure, novel in design and easy to operate, the contact area and interaction amount between gas and liquid can be increased, and then the concentration effect of the device on sulfuric acid is improved.

Description

Technical Field

[0001] This utility model belongs to the field of sulfuric acid concentration technology, and more specifically, it relates to a sulfuric acid concentration tower. Background Technology

[0002] In existing technologies, typical dilute sulfuric acid concentration techniques include evaporation concentration and thermal cracking regeneration. Evaporation concentration utilizes the principle that the partial pressure of water in the gas phase differs depending on the light component (water) and heavy component (sulfuric acid) in dilute sulfuric acid, under varying temperatures, pressures, and sulfuric acid concentrations. By heating the liquid-phase dilute sulfuric acid, the partial pressure of water in the gas phase is increased, causing water from the liquid-phase dilute sulfuric acid to enter the gas phase, thus concentrating the dilute sulfuric acid.

[0003] In order to facilitate the gas to pass through the liquid layer on the plate from bottom to top and come into contact with the liquid flowing from top to bottom, some current sulfuric acid concentration towers usually have multiple mesh trays inside the tower. However, these trays often have a fixed volume, which directly results in a relatively limited number of mesh openings on the tray surface. This restricts the contact area and interaction between the gas and the liquid, thereby reducing the concentration effect of sulfuric acid.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a sulfuric acid concentration tower in order to achieve a more practical purpose. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a sulfuric acid concentration tower, which is achieved by the following specific technical means:

[0006] A sulfuric acid concentration tower includes a sulfuric acid concentration tower body, in which a plurality of perforated tower plates are installed. A pair of overflow weirs are installed on both sides of the upper end face of the perforated tower plates. A downcomer is installed on one side of one of the overflow weirs on the bottom end face of the perforated tower plates. The top end of the downcomer extends to the upper end face of the perforated tower plates. A plurality of through holes are provided on the surface of the perforated tower plates between the pair of overflow weirs. The tower also includes a bend, the surface of which is provided with a plurality of venting grooves. A support is installed on the bottom end face of the bend, and a threaded connector is installed on the bottom end face of the support.

[0007] Furthermore, the upper end face of the sulfuric acid concentration tower is provided with a gas phase outlet, and the bottom end face of the sulfuric acid concentration tower is provided with a liquid phase outlet.

[0008] Furthermore, a liquid phase inlet is provided at the upper end of one side of the sulfuric acid concentration tower body, and a gas phase inlet is provided at the lower end of one side of the sulfuric acid concentration tower body below the liquid phase inlet.

[0009] Furthermore, a feed inlet is provided on the side of the sulfuric acid concentration tower away from the liquid phase inlet.

[0010] Furthermore, the through hole is provided with threads, and the threads on the surface of the threaded connector match the threads inside the through hole.

[0011] Furthermore, the perforated trays are staggered among themselves.

[0012] Furthermore, the height of the bend is equal to the height of the overflow weir.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By using a combination of bends, venting grooves, and threaded connectors, when installing the bend, the operator inserts the threaded connector into the through hole, and then rotates the threaded connector via a support base. Because the threads on the surface of the threaded connector match the threads inside the through hole, the threaded connector begins to move into the through hole as it rotates, fixing the bend onto the through hole. This allows for quick installation and removal of the bend, facilitating maintenance or replacement. During operation, gas flows from bottom to top through the through holes on the surface of the perforated tray, then enters the bend, and flows out through the venting grooves on the surface of the bend, making full contact with the liquid accumulated on the surface of the perforated tray. This increases the contact area and interaction between the gas and liquid, thereby improving the concentration effect of the device on sulfuric acid. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0016] Figure 2 This is a frontal cross-sectional view of the present invention.

[0017] Figure 3 This is a three-dimensional schematic diagram of a portion of the structure of this utility model.

[0018] Figure 4 This is a three-dimensional schematic diagram of the perforated tower plate of this utility model.

[0019] Figure 5 This is a three-dimensional schematic diagram of the bent pipe in this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Sulfuric acid concentration tower body; 101. Gas phase outlet; 102. Liquid phase outlet; 103. Liquid phase inlet; 104. Gas phase inlet; 105. Feed inlet; 2. Mesh tray; 201. Overflow weir; 202. Downcomer; 203. Through hole; 3. Bend; 301. Ventilation groove; 302. Support base; 303. Threaded connector. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 5 As shown:

[0027] This utility model provides a sulfuric acid concentration tower, including a sulfuric acid concentration tower body 1, a plurality of perforated tower plates 2 installed inside the sulfuric acid concentration tower body 1, a pair of overflow weirs 201 installed on both sides of the upper end face of the perforated tower plate 2, a downcomer 202 installed on one side of one of the overflow weirs 201 on the bottom end face of the perforated tower plate 2, the top end of the downcomer 202 extending to the upper end face of the perforated tower plate 2, a plurality of through holes 203 provided on the surface of the perforated tower plate 2 between the pair of overflow weirs 201, and also includes a bend 3, the surface of the bend 3 is provided with a plurality of venting grooves 301, a support base 302 installed on the bottom end face of the bend 3, and a threaded connector 303 installed on the bottom end face of the support base 302.

[0028] The upper end face of the sulfuric acid concentration tower 1 is provided with a gas phase outlet 101, and the bottom end face of the sulfuric acid concentration tower 1 is provided with a liquid phase outlet 102. The gas with higher concentration enters the external condenser through the gas phase outlet 101, and the liquid with higher concentration enters the external reboiler.

[0029] The sulfuric acid concentration tower 1 has a liquid inlet 103 at the upper end of one side and a gas inlet 104 at the lower end of one side below the liquid inlet 103. An externally installed separator transports the separated liquid to the sulfuric acid concentration tower 1 through the liquid inlet 103, and an externally installed reboiler transports the gas to the sulfuric acid concentration tower 1 through the gas inlet 104.

[0030] The sulfuric acid concentration tower 1 has a feed inlet 105 on the side away from the liquid inlet 103, through which sulfuric acid enters the sulfuric acid concentration tower 1.

[0031] The through hole 203 is provided with a thread, and the thread on the surface of the threaded connector 303 matches the thread in the through hole 203. Since the thread on the surface of the threaded connector 303 matches the thread in the through hole 203, the threaded connector 303 starts to move into the through hole 203 when it rotates, thus fixing the bent pipe 3 on the through hole 203.

[0032] Among them, several mesh trays 2 are staggered.

[0033] The height of the bend 3 is equal to the height of the overflow weir 201.

[0034] The working principle of this embodiment:

[0035] By using the bend 3, the venting groove 301, and the threaded connector 303 together, when installing the bend 3, the operator inserts the threaded connector 303 into the through hole 203, and then drives the threaded connector 303 to rotate through the support base 302. Since the thread on the surface of the threaded connector 303 matches the thread in the through hole 203, the threaded connector 303 begins to move into the through hole 203 when it rotates, fixing the bend 3 on the through hole 203. This enables quick installation and removal of the bend 3, facilitating maintenance or replacement of the bend 3. During operation, gas passes through the through hole 203 on the surface of the perforated tower plate 2 from bottom to top, then enters the bend 3, and flows out through the venting groove 301 on the surface of the bend 3, making full contact with the liquid accumulated on the surface of the perforated tower plate 2. This increases the contact area and interaction between the gas and the liquid, thereby improving the concentration effect of the device on sulfuric acid.

[0036] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A sulfuric acid concentration column comprising a sulfuric acid concentration column body (1), characterized by: The sulfuric acid concentration tower body (1) is equipped with several perforated tower plates (2). A pair of overflow weirs (201) are installed on both sides of the upper end face of the perforated tower plate (2). A downcomer (202) is installed on one side of one of the overflow weirs (201) on the bottom end face of the perforated tower plate (2). The top end of the downcomer (202) extends to the upper end face of the perforated tower plate (2). Several through holes (203) are provided on the surface of the perforated tower plate (2) between the pair of overflow weirs (201). It also includes a bend (3). Several ventilation grooves (301) are provided on the surface of the bend (3). A support seat (302) is installed on the bottom end face of the bend (3). A threaded connector (303) is installed on the bottom end face of the support seat (302).

2. The sulfuric acid concentration column of claim 1, wherein: The upper end face of the sulfuric acid concentration tower (1) is provided with a gas phase outlet (101), and the bottom end face of the sulfuric acid concentration tower (1) is provided with a liquid phase outlet (102).

3. The sulfuric acid concentration column of claim 1 wherein: A liquid phase inlet (103) is provided at the upper end of one side of the sulfuric acid concentration tower body (1), and a gas phase inlet (104) is provided at the lower end of one side of the sulfuric acid concentration tower body (1) below the liquid phase inlet (103).

4. The sulfuric acid concentration column of claim 3 wherein: The sulfuric acid concentration tower (1) has a feed inlet (105) on the side away from the liquid inlet (103).

5. The sulfuric acid concentration column of claim 1 wherein: The through hole (203) is provided with threads, and the threads on the surface of the threaded connector (303) match the threads in the through hole (203).

6. The sulfuric acid concentration column of claim 1 wherein: The perforated trays (2) are staggered among each other.

7. The sulfuric acid concentration column of claim 1 wherein: The height of the bend (3) is equal to the height of the overflow weir (201).

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