Automatic dehydrator for concentrated sulfuric acid

Abstract

The utility model provides an automatic dehydrator for concentrated sulfuric acid, which relates to the technical field of chemical equipment, and comprises a tower body, a baffle plate and a sight glass, the baffle plate is vertically arranged in the tower body, the upper end of the baffle plate is connected with the top of the tower body, the lower end of the baffle plate is used for extending below the liquid level of absorption liquid, and the top of the tower body is provided with an air inlet; a first outlet and a mounting opening are formed in the side wall of the tower body, the gas inlet is located in one side of the baffle, the first outlet and the mounting opening are located in the other side of the baffle, the first outlet is used for being communicated with a concentrated sulfuric acid storage tank, the sight glass is mounted in the mounting opening, and a plurality of absorption liquid concentration scale marks are vertically arranged on the sight glass at intervals. The sight glass is installed on the side wall of the tower body, an operator can directly see the cleanliness of absorption liquid in the tower body through the sight glass, meanwhile, the multiple absorption liquid concentration scale marks are vertically arranged on the sight glass at intervals, the concentration of the absorption liquid can be accurately judged, the absorption liquid can be replaced in time when the concentration is lower than the designed concentration, and the dehydration effect of the absorption liquid is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to an automatic concentrated sulfuric acid dehydrator. Background Art

[0002] Concentrated sulfuric acid is an important chemical raw material and is widely used in many industries. Concentrated sulfuric acid is usually stored in concentrated sulfuric acid storage tanks. In order to balance the internal pressure of the concentrated sulfuric acid storage tanks and the atmospheric pressure, the concentrated sulfuric acid storage tanks are usually connected to the air. However, concentrated sulfuric acid, especially concentrated sulfuric acid with a concentration of 98%, has strong water absorption. The concentrated sulfuric acid in the concentrated sulfuric acid storage tank is very easy to contact and mix with moisture in the air and release heat. This part of heat will intensify the volatilization of SO3 in the concentrated sulfuric acid. The volatilized SO3 reacts with moisture in the air to form sulfuric acid droplets and acid mist, which not only cause harm to humans and vegetation, but also cause pressure and corrosion damage to the concentrated sulfuric acid storage tank. In order to prevent the concentrated sulfuric acid in the concentrated sulfuric acid storage tank from contacting with moisture in the air and causing safety hazards, an automatic concentrated sulfuric acid dehydrator is usually installed around the concentrated sulfuric acid storage tank. The automatic concentrated sulfuric acid dehydrator is filled with 98% concentrated sulfuric acid as an absorption liquid. When the concentrated sulfuric acid storage tank is filled with acid, the gas in the concentrated sulfuric acid storage tank enters the automatic concentrated sulfuric acid dehydrator and is absorbed by the absorption liquid. When the concentrated sulfuric acid storage tank is discharged, outside air will enter from the air inlet of the automatic concentrated sulfuric acid dehydrator, and enter the concentrated sulfuric acid storage tank after being absorbed by the absorption liquid, thereby maintaining the pressure balance inside and outside the concentrated sulfuric acid storage tank.

[0003] The concentration, cleanliness and other usage conditions of the absorption liquid in the existing concentrated sulfuric acid automatic dehydrator are completely judged by the staff's experience, with low accuracy and difficult to ensure the dehydration effect. Utility Model Content

[0004] The utility model aims to solve the technical problem that the use of the absorption liquid in the existing concentrated sulfuric acid automatic dehydrator cannot be intuitively judged.

[0005] The utility model provides an automatic concentrated sulfuric acid dehydrator, comprising a tower body, a baffle and a sight glass, wherein the baffle is vertically arranged in the tower body, and the upper end of the baffle is connected to the top of the tower body, and the lower end of the baffle is used to extend below the liquid level of an absorption liquid, an air inlet is arranged on the top of the tower body, and a first outlet and a mounting port are arranged on the side wall of the tower body, the air inlet is located on one side of the baffle, and the first outlet and the mounting port are located on the other side of the baffle, the first outlet is used to be connected with a concentrated sulfuric acid storage tank, the sight glass is installed in the mounting port, and a plurality of absorption liquid concentration scale lines are arranged vertically at intervals along the upper edge of the sight glass.

[0006] Optionally, the concentrated sulfuric acid automatic dehydrator also includes a regulating valve, a second outlet is provided at the bottom of the tower body, the second outlet is used to communicate with the concentrated sulfuric acid storage tank, and the regulating valve is provided on the connecting pipeline between the second outlet and the concentrated sulfuric acid storage tank; when the liquid level of the absorption liquid in the tower body is at a preset absorption liquid concentration scale line, the regulating valve opens.

[0007] Optionally, the concentrated sulfuric acid automatic dehydrator further comprises an adsorption filter, and the adsorption filter is arranged at the air inlet.

[0008] Optionally, the adsorption filter is an activated carbon filter.

[0009] Optionally, the concentrated sulfuric acid automatic dehydrator further comprises a filter plate, which is provided at a position inside the tower body corresponding to the air inlet, the filter plate is connected to the side wall of the tower body and the baffle, and a plurality of air vents are arranged at intervals on the filter plate.

[0010] Optionally, a plurality of protrusions are provided on a side of the filter plate away from the air inlet, and the filter plate is provided with ventilation holes penetrating the protrusions, and the ventilation holes are inverted cone-shaped holes.

[0011] Optionally, the height dimension of the absorption liquid in the tower body is smaller than the lateral dimension of the tower body.

[0012] Optionally, the outer surface of the baffle and the inner wall surface of the tower body are respectively covered with polytetrafluoroethylene lining; and / or the lower end of the baffle is serrated.

[0013] Optionally, a liquid inlet is further provided at the top of the tower body, and the liquid inlet is used to add the absorption liquid, and the liquid inlet and the first outlet are located on the same side of the baffle.

[0014] Optionally, the concentrated sulfuric acid automatic dehydrator also includes an air intake pipe and a breathing valve, one end of the air intake pipe is connected to the air inlet, the adsorption filter and the breathing valve are respectively arranged on the air intake pipe, and the adsorption filter is arranged on the side of the breathing valve close to the air inlet.

[0015] The concentrated sulfuric acid automatic dehydrator of the utility model has at least the following advantages compared with the prior art:

[0016] The tower body can contain 98% concentrated sulfuric acid absorption liquid, the upper end of the vertically arranged baffle is connected to the top of the tower body, and the lower end of the baffle is used to extend below the absorption liquid level to divide the upper half of the tower body into a first space and a second space separated from each other. When the concentrated sulfuric acid storage tank discharges acid to the outside, the air pressure in the concentrated sulfuric acid storage tank will decrease. At this time, the outside air enters the first space along the air inlet at the top of the tower body, enters the second space after being absorbed by the absorption liquid in the tower body, and flows to the concentrated sulfuric acid storage tank from the first outlet to supplement the pressure inside the concentrated sulfuric acid storage tank, ensuring that the internal and external air pressures of the concentrated sulfuric acid storage tank are in a balanced state; when acid is injected into the concentrated sulfuric acid storage tank, the air pressure in the concentrated sulfuric acid storage tank will increase, and part of the gas inside it can enter the second space through the first outlet and be absorbed by the absorption liquid in the tower body, thereby ensuring that the internal air pressure of the concentrated sulfuric acid storage tank is in a balanced state with the external environmental air pressure. A sight glass is installed on the side wall of the tower body, through which the operator can directly see the cleanliness of the absorption liquid inside the tower body. At the same time, a plurality of absorption liquid concentration scale lines are arranged at vertical intervals on the sight glass. When marking the scale lines, the lowest concentration scale line is set to be 98% concentration. Initially, 98% concentration absorption liquid is added to the 98% concentration scale line. The concentration value of the absorption liquid in the tower body is calculated according to the relevant dimensions of the tower body after the 98% concentration absorption liquid is diluted to different degrees, that is, when the liquid level of the absorption liquid is at different heights, and is marked above the 98% concentration scale line in sequence. The operator can accurately judge the concentration of the absorption liquid by observing the concentration scale line corresponding to the liquid level position of the absorption liquid inside the tower body, so that it can be replaced in time when it is lower than the design concentration, such as 70%, to ensure the dehydration effect of the absorption liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of an automatic concentrated sulfuric acid dehydrator according to an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the regulating valve according to an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the baffle of an embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a filter plate according to an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Tower body; 11. Air inlet; 12. First outlet; 13. Second outlet; 14. Liquid inlet; 2. Baffle; 3. Adsorption filter; 4. Sight glass; 5. Filter plate; 51. Air vent; 6. Regulating valve; 7. First acid outlet pipe; 8. Second acid outlet pipe; 9. Air inlet pipe; 10. Breathing valve. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "matched" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, it should be noted that in the description of the present invention, it should be noted that the terminology nouns in the various embodiments, such as "upper", "lower", "front", "back" and other words indicating directions, are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the components and devices referred to must be operated in accordance with the specific directions and specified operations and methods and structures in the specification. Such directional nouns do not constitute a limitation on the present invention.

[0026] like Figure 1 As shown, an automatic concentrated sulfuric acid dehydrator according to an embodiment of the utility model comprises a tower body 1, a baffle 2 and a sight glass 4, wherein the baffle 2 is vertically placed in the tower body 1, and the upper end of the baffle 2 is connected to the top of the tower body 1, and the lower end of the baffle 2 is used to extend below the absorption liquid level, an air inlet 11 is provided at the top of the tower body 1, and a first outlet 12 and a mounting port are provided on the side wall of the tower body 1, the air inlet 11 is located on one side of the baffle 2, the first outlet 12 and the mounting port are located on the other side of the baffle 2, the first outlet 12 is used to communicate with a concentrated sulfuric acid storage tank, the sight glass 4 is installed in the mounting port, and a plurality of absorption liquid concentration scale lines are provided vertically at intervals on the upper side of the peep glass 4.

[0027] Specifically, the tower body 1 is arranged vertically, and the tower body 1 may include a tower body and a tower cover which are installed in cooperation with each other. The tower body is a cylindrical joint with an opening facing upward, and the tower cover is arranged at the opening. The tower cover is provided with an air inlet 11, and the tower body is provided with a first outlet 12 and an installation opening. The baffle 2 is a smooth stainless steel baffle, the upper end of the baffle 2 is fixedly connected to the tower cover, and the side wall of the baffle 2 is fitted and fixed to the tower body. The baffle 2 is placed in the tower body 1 to separate the air inlet 11 and the first outlet 12. The peep mirror 4 is embedded in the installation opening, and the peep mirror 4 is made of transparent material. The liquid level of the absorption liquid in the tower body 1 is close to the first outlet 12.

[0028] In this embodiment, the tower body 1 can contain 98% concentrated sulfuric acid absorption liquid, the upper end of the vertically arranged baffle 2 is connected to the top of the tower body 1, and the lower end of the baffle 2 is used to extend below the absorption liquid level to divide the upper half of the tower body 1 into a first space and a second space separated from each other. When the concentrated sulfuric acid storage tank discharges acid to the outside, the air pressure in the concentrated sulfuric acid storage tank will decrease. At this time, the outside air enters the first space along the air inlet 11 at the top of the tower body 1, enters the second space after being absorbed by the absorption liquid in the tower body 1, and flows to the concentrated sulfuric acid storage tank from the first outlet to supplement the pressure inside the concentrated sulfuric acid storage tank, ensuring that the internal and external air pressures of the concentrated sulfuric acid storage tank are in a balanced state; when acid is injected into the interior of the concentrated sulfuric acid storage tank, the air pressure in the concentrated sulfuric acid storage tank will increase, and part of the gas inside it can enter the second space through the first outlet and be absorbed by the absorption liquid in the tower body 1, thereby ensuring that the internal air pressure of the concentrated sulfuric acid storage tank is in a balanced state with the external environmental air pressure. A sight glass 4 is installed on the side wall of the tower body 1, and the operator can directly see the cleanliness of the absorption liquid inside the tower body 1 through the sight glass 4. At the same time, a plurality of absorption liquid concentration scale lines are arranged vertically at intervals on the sight glass 4. When marking the scale lines, the lowest concentration scale line is set to be 98% concentration. Initially, 98% concentration absorption liquid is added to the 98% concentration scale line. According to the relevant dimensions of the tower body 1, the concentration values ​​of the absorption liquid in the tower body 1 are calculated after the 98% concentration absorption liquid is diluted to different degrees, that is, when the liquid level of the absorption liquid is at different heights, and are marked above the 98% concentration scale line in sequence. The operator can accurately judge the concentration of the absorption liquid by observing the concentration scale line corresponding to the liquid level position of the absorption liquid inside the tower body 1, so that it can be replaced in time when it is lower than the design concentration, such as 70%, to ensure the dehydration effect of the absorption liquid.

[0029] like Figure 1-Figure 2 As shown, optionally, the concentrated sulfuric acid automatic dehydrator also includes a regulating valve 6, a second outlet 13 is provided at the bottom of the tower body 1, the second outlet 13 is used to communicate with the concentrated sulfuric acid storage tank, and the regulating valve 6 is provided on the connecting pipeline between the second outlet 13 and the concentrated sulfuric acid storage tank; when the liquid level of the absorption liquid in the tower body 1 is at the preset absorption liquid concentration scale line, the regulating valve 6 is opened.

[0030] Specifically, a second outlet 13 is provided at the bottom of the tower body 1, which can facilitate liquid discharge. The second outlet 13 can be connected to the concentrated sulfuric acid storage tank through the second acid outlet pipe 8. The second acid outlet pipe 8 includes two sections of elbows arranged at intervals, and the regulating valve 6 is connected between the two sections of elbows. The second acid outlet pipe 8 is connected to the tower body 1 and the concentrated sulfuric acid storage tank by flanges. The regulating valve 6 can be manually controlled or electrically controlled. The initial concentration of the absorption liquid is 98% concentrated sulfuric acid, and the preset concentration can be 70% concentrated sulfuric acid. The first outlet 12 can be connected to the concentrated sulfuric acid storage tank through the first acid outlet pipe 7, and the first acid outlet pipe 7 is connected to the tower body 1 and the concentrated sulfuric acid storage tank by flanges.

[0031] In this embodiment, during the repeated acid discharge and acid injection of the concentrated sulfuric acid storage tank, the concentration of the absorption liquid in the tower body 1 will gradually decrease. When the concentration of the absorption liquid is reduced to a preset concentration such as 70%, the dehydration effect of the absorption liquid will be greatly reduced. At this time, the regulating valve 6 can be opened, and the absorption liquid in the tower body 1 can be directly discharged to the concentrated sulfuric acid storage tank through the second outlet 13. Since the amount of the absorption liquid is very small, the effect on the concentration of the concentrated sulfuric acid in the concentrated sulfuric acid storage tank can be basically ignored. After that, the regulating valve 6 is closed, and 98% concentration absorption liquid is re-added to the tower body 1. The entire replacement process of the absorption liquid is relatively simple.

[0032] like Figure 1 As shown, optionally, the concentrated sulfuric acid automatic dehydrator further includes an adsorption filter 3 , and the adsorption filter 3 is arranged at the air inlet 11 .

[0033] In this embodiment, the adsorption filter 3 can absorb moisture, impurities, etc. in the outside air. By setting the adsorption filter 3 at the air inlet 11, the humidity of the air entering the tower body 1 can be effectively reduced, the dilution rate of the absorption liquid can be slowed down, and the use time of the absorption liquid can be extended.

[0034] Optionally, the adsorption filter 3 is an activated carbon filter.

[0035] In this embodiment, the adsorption filter 3 adopts an activated carbon filter, which has higher adsorption efficiency, longer service life, and more convenient replacement and maintenance. In addition, the activated carbon is natural, non-toxic, and environmentally friendly.

[0036] like Figure 1 and Figure 4 As shown, optionally, the concentrated sulfuric acid automatic dehydrator also includes a filter plate 5, and the filter plate 5 is provided at a position inside the tower body 1 corresponding to the air inlet 11, and the filter plate 5 is connected to the side wall of the tower body 1 and the baffle 2, and a plurality of air vents 51 are arranged at intervals on the filter plate 5.

[0037] Specifically, the filter plate 5 can be a semicircular plate arranged horizontally, the diameter of the semicircular plate is consistent with the inner diameter of the tower body 1, the arc edge of the filter plate 5 matches and fits with the inner wall surface of the tower body 1, a slot is provided on the straight side of the filter plate 5, the lower end of the baffle 2 is inserted into the slot and fastened by bolts, and the arc edge of the filter plate 5 can be fixed to the side wall of the tower body 1 by bolts to ensure that the filter plate 5 does not shake. A plurality of vents 51 with a diameter of 9 mm can be provided on the filter plate 5, and a plurality of evenly spaced vents 51 can achieve even distribution of air. The filter plate 5 can be located below the liquid surface.

[0038] In this embodiment, a filter plate 5 is provided at a position corresponding to the air inlet 11 in the tower body 1, and an air vent 51 is provided on the filter plate 5. The air entering through the air inlet 11 enters the absorption liquid through the air vent 51 after being buffered by the filter plate 5, thereby avoiding fluctuations in the absorption liquid caused by direct impact of the absorption liquid on the absorption liquid due to excessive flow velocity, reducing the longitudinal dehydration distance of the air in the absorption liquid, and avoiding excessive positive and negative pressures on the tower body 1.

[0039] Optionally, a plurality of protrusions are provided on a side of the filter plate 5 away from the air inlet 11 , and the filter plate 5 is provided with the ventilation holes 51 penetrating the protrusions, and the ventilation holes 51 are inverted cone-shaped holes.

[0040] In this embodiment, a plurality of protrusions are provided at the bottom of the filter plate 5. Compared with a flat surface, when adding absorption liquid, a small amount of absorption liquid splashed onto the filter plate 5 can quickly return to the bottom of the tower body 1 and will not gather on the filter plate 5, thereby preventing the filter plate 5 from being corroded. The vent hole 51 is an inverted cone hole, which can further reduce the impact force of the air.

[0041] Optionally, the height dimension of the absorption liquid in the tower body 1 is smaller than the lateral dimension of the tower body 1 .

[0042] In this embodiment, the height of the absorption liquid in the tower body 1 is relatively small, and the lateral dimension of the tower body 1 is relatively large. When the outside air enters the tower body 1 from the air inlet 11 on one side of the tower body 1, is dehumidified by the absorption liquid at the bottom and flows out from the first outlet 12 on the other side, the air is dehydrated in the absorption liquid mainly by lateral dehydration and supplemented by longitudinal dehydration, so that the pressure difference in the tower body 1 during the dehydration process will not be too large and the dehydration efficiency is guaranteed.

[0043] Optionally, the outer surface of the baffle 2 and the inner wall surface of the tower body 1 are respectively covered with a polytetrafluoroethylene lining; and / or, the lower end of the baffle 2 is serrated, such as Figure 3 shown.

[0044] In this embodiment, polytetrafluoroethylene has high corrosion resistance, and the outer surface of the baffle 2 and the inner wall of the tower body 1 are covered with polytetrafluoroethylene lining, which can prevent the baffle 2 and the tower body 1 from being corroded due to long-term contact with concentrated sulfuric acid absorption liquid. Compared with the lead-plating process for the inner wall of the stainless steel tower body, the process can be greatly simplified to avoid the risk of lead poisoning.

[0045] In this article, polytetrafluoroethylene gaskets can also be configured at each flange connection to improve sealing and prevent gas and liquid leakage.

[0046] The lower end of the baffle 2 is serrated, so that the absorption liquid suspended thereon will not accumulate in large quantities but will fall to the bottom of the tower body under the action of gravity.

[0047] Optionally, a liquid inlet 14 is further provided on the top of the tower body 1 , and the liquid inlet 14 is used to add the absorption liquid. The liquid inlet 14 and the first outlet 12 are located on the same side of the baffle 2 .

[0048] In this embodiment, the liquid inlet 14 is arranged on the tower cover of the tower body 1, and the liquid inlet 14 and the air inlet 11 are respectively located on both sides of the baffle 2 to avoid the high concentration absorption liquid from reacting with the air to produce acid rain when adding liquid, and the baffle 2 can also prevent the absorption liquid from splashing.

[0049] like Figure 1 As shown, optionally, the concentrated sulfuric acid automatic dehydrator also includes an air intake pipe 9 and a breathing valve 10, one end of the air intake pipe 9 is connected to the air inlet 11, the adsorption filter 3 and the breathing valve 10 are respectively arranged on the air intake pipe 9, and the adsorption filter 3 is arranged on the side of the breathing valve 10 close to the air inlet 11.

[0050] In this embodiment, the air inlet pipe 9 can be connected to the air inlet 11 through a flange, and the breathing valve 10 can be automatically opened and closed. When the pressure inside the tower body 1 is higher than the external environmental pressure, that is, when the concentrated sulfuric acid storage tank is filled with acid, the breathing valve 10 automatically opens to exhaust air outwardly. When the pressure inside the tower body 1 is lower than the external environmental pressure, that is, when the concentrated sulfuric acid storage tank is discharging acid outwardly, the outside air pushes the breathing valve 10 open and enters the interior of the tower body 1 to compensate for the pressure difference.

[0051] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A concentrated sulfuric acid automatic dehydrator, characterized in that: The tower body (1) comprises a tower body (1), a baffle (2) and a sight glass (4), wherein the baffle (2) is vertically arranged in the tower body (1), and the upper end of the baffle (2) is connected to the top of the tower body (1), and the lower end of the baffle (2) is used to extend below the surface of the absorption liquid, the top of the tower body (1) is provided with an air inlet (11), and the side wall of the tower body (1) is provided with a first outlet (12) and a mounting port, the air inlet (11) is located on one side of the baffle (2), the first outlet (12) and the mounting port are located on the other side of the baffle (2), the first outlet (12) is used to communicate with a concentrated sulfuric acid storage tank, the sight glass (4) is installed in the mounting port, and a plurality of absorption liquid concentration scale lines are vertically spaced on the top of the sight glass (4).

2. The concentrated sulfuric acid automatic dehydrator according to claim 1, characterized in that: The tower body (1) further comprises a regulating valve (6); a second outlet (13) is provided at the bottom of the tower body (1); the second outlet (13) is used to communicate with the concentrated sulfuric acid storage tank; the regulating valve (6) is provided on the connecting pipeline between the second outlet (13) and the concentrated sulfuric acid storage tank; when the liquid level of the absorption liquid in the tower body (1) is at a preset absorption liquid concentration scale line, the regulating valve (6) is opened.

3. The concentrated sulfuric acid automatic dehydrator according to claim 1, characterized in that: It also comprises an adsorption filter (3), wherein the adsorption filter (3) is arranged at the air inlet (11).

4. The concentrated sulfuric acid automatic dehydrator according to claim 3, characterized in that: The adsorption filter (3) is an activated carbon filter.

5. The concentrated sulfuric acid automatic dehydrator according to claim 1, characterized in that: It also comprises a filter plate (5), wherein the filter plate (5) is arranged at a position inside the tower body (1) corresponding to the air inlet (11), the filter plate (5) is connected to the side wall of the tower body (1) and the baffle (2), and a plurality of ventilation holes (51) are arranged at intervals on the filter plate (5).

6. The concentrated sulfuric acid automatic dehydrator according to claim 5, characterized in that: A plurality of protrusions are provided on a side of the filter plate (5) away from the air inlet (11), and the filter plate (5) is provided with the ventilation holes (51) penetrating the protrusions, wherein the ventilation holes (51) are inverted conical holes.

7. The concentrated sulfuric acid automatic dehydrator according to claim 1, characterized in that: The height dimension of the absorption liquid in the tower body (1) is smaller than the lateral dimension of the tower body (1).

8. The concentrated sulfuric acid automatic dehydrator according to claim 1, characterized in that: The outer surface of the baffle (2) and the inner wall surface of the tower body (1) are respectively covered with polytetrafluoroethylene linings; and / or the lower end of the baffle (2) is serrated.

9. The concentrated sulfuric acid automatic dehydrator according to claim 1, characterized in that: The top of the tower body (1) is also provided with a liquid inlet (14), and the liquid inlet (14) is used to add the absorption liquid. The liquid inlet (14) and the first outlet (12) are located on the same side of the baffle (2).

10. The concentrated sulfuric acid automatic dehydrator according to claim 3, characterized in that: It also includes an air intake pipe (9) and a breathing valve (10), one end of the air intake pipe (9) is connected to the air intake port (11), the adsorption filter (3) and the breathing valve (10) are respectively arranged on the air intake pipe (9), and the adsorption filter (3) is arranged on the side of the breathing valve (10) close to the air intake port (11).

Images