Acid mist volatilization prevention device

Abstract

The utility model belongs to the technical field of chemical equipment, and particularly relates to an acid mist volatilization prevention device which comprises a reaction tank, an acid liquor pipeline is arranged on the reaction tank and penetrates through the top of the reaction tank to vertically extend downwards, the bottom end of the acid liquor pipeline is close to the bottom of the reaction tank, and the acid liquor pipeline comprises equal-diameter horizontal pipe sections. One end of the equal-diameter horizontal pipe section is vertically connected with an equal-diameter vertical pipe section, the end, away from the equal-diameter horizontal pipe section, of the equal-diameter vertical pipe section is connected with a flared pipe, the end, away from the equal-diameter vertical pipe section, of the flared pipe is provided with an outlet pipe, and the pipe diameter of the outlet pipe is larger than that of the equal-diameter vertical pipe section. A plurality of groups of polyhedral balls are arranged in the flared pipe and the outlet pipe, the equal-diameter horizontal pipe section is arranged at the top of the reaction tank, the equal-diameter vertical pipe section is arranged in the reaction tank, and a one-way valve is arranged on the equal-diameter horizontal pipe section. According to the device, the acid liquor can enter the reaction tank more stably, and the problems of volatilization and splashing of acid mist when the acid liquor is added into the reaction tank are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical equipment, and in particular relates to a device for preventing acid mist from volatilizing. Background Art

[0002] In many chemical reactions, acids can directly participate in the reaction as reactants, and play an important role in regulating the pH value in the reaction system, providing a suitable acid-base environment for the reaction. In esterification reactions, acids can act as catalysts to promote the smooth progress of the reaction. In addition, some acids have oxidizing properties and act as oxidants in chemical reactions.

[0003] When adding acid to the reaction tank, a common method is to inject the acid directly from the acid inlet reserved at the top of the reaction tank through a pipe. This method is simple to operate, but the pipe outlet is close to the tank top, and the acid has a large contact surface with the air when it is sprayed out. During the spraying process, a large amount of acid molecules will evaporate into the air to form acid mist, which will change the gas phase composition in the reaction tank, making the actual concentration of acid in the reaction system lower than the theoretical concentration, which will have an adverse effect on the chemical reaction. In addition, when the acid flow rate entering the top of the reaction tank is too fast, the acid is prone to splashing when entering the bottom of the reactor, damaging sensitive components such as the temperature sensor and pressure sensor arranged in the reactor. Utility Model Content

[0004] The utility model aims to provide an acid mist volatilization prevention device, which can make acid liquid enter the reaction tank more smoothly, reduce the contact area between acid liquid and air, reduce the volatilization amount of acid mist, and change the flow direction of acid at the same time, prevent the acid liquid from directly impacting the bottom of the reaction tank, and avoid the problem of acid mist volatilization and splashing when adding acid liquid into the reaction tank.

[0005] To achieve the above purpose, the technical solution of the utility model is:

[0006] The device for preventing acid mist from volatilizing comprises a reaction tank, on which an acid liquid pipeline is arranged, the acid liquid pipeline penetrates through the top of the reaction tank and extends vertically downward, the bottom end of the acid liquid pipeline is close to the bottom of the reaction tank, the acid liquid pipeline comprises an equal-diameter horizontal pipe section, one end of the equal-diameter horizontal pipe section is vertically connected to an equal-diameter vertical pipe section, one end of the equal-diameter vertical pipe section away from the equal-diameter horizontal pipe section is connected to a flaring pipe, one end of the flaring pipe away from the equal-diameter vertical pipe section is arranged with an outlet pipe, the pipe diameter of the outlet pipe is larger than the pipe diameter of the equal-diameter vertical pipe section, a plurality of groups of polyhedral balls are arranged inside the flaring pipe and inside the outlet pipe, the equal-diameter horizontal pipe section is arranged on the top of the reaction tank, the equal-diameter vertical pipe section is arranged inside the reaction tank, and a one-way valve is arranged on the equal-diameter horizontal pipe section.

[0007] in:

[0008] The expanded pipe is arranged in a truncated cone shape as a whole, the diameter of the expanded pipe near one end of the equal-diameter vertical pipe section is equal to the diameter of the equal-diameter vertical pipe section, and the diameter of the expanded pipe near one end of the outlet pipe is equal to the diameter of the outlet pipe.

[0009] An isolation net is arranged at one end of the expanded pipe close to the equal-diameter vertical pipe section.

[0010] An isolation net 2 is arranged at one end of the outlet pipe away from the expanding pipe.

[0011] The inner wall of the acid liquid pipeline, the inner wall of the expanded pipe and the inner wall of the outlet pipe are all provided with a polytetrafluoroethylene layer.

[0012] The multifaceted ball comprises a reinforcement ring, which is arranged in a disc shape as a whole, and a connecting rod is arranged through the center of the reinforcement ring.

[0013] The axis of the connecting rod is arranged perpendicular to the top surface of the reinforcing ring, a top ring is arranged at the top end of the connecting rod, and a bottom ring is arranged at the bottom end of the connecting rod.

[0014] The top surface of the reinforcement ring is provided with several groups of upper blades, which are evenly distributed along the circumference of the reinforcement ring; the bottom surface of the reinforcement ring is provided with several groups of lower blades, which are evenly distributed along the circumference of the reinforcement ring.

[0015] The upper blades are fixedly arranged between the top surface of the reinforcement ring and the connecting rod, and the lower blades are fixedly arranged between the bottom surface of the reinforcement ring and the connecting rod.

[0016] The material of the multi-faceted ball is reinforced polypropylene.

[0017] The beneficial effects of the utility model are:

[0018] By arranging an acid liquid pipeline, an expansion pipe and an outlet pipe, the acid liquid can enter the reaction tank more smoothly, reducing the volatilization amount of acid mist. The bottom end of the acid liquid pipeline is close to the bottom of the reaction tank, reducing the contact area between the acid liquid and the air, and further reducing the volatilization amount of acid mist. By arranging a multi-faceted ball, the flow direction of the acid can be changed inside the expansion pipe and the outlet pipe to prevent the acid liquid from directly impacting the bottom of the reaction tank and avoid splashing when adding acid liquid into the reaction tank. A one-way valve is arranged on the equal-diameter horizontal pipe section to prevent acid contamination caused by back suction of acid liquid in the reaction tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a partial cross-sectional view of a medium-diameter vertical pipe section, a flared pipe, an outlet pipe, a first isolation net, a second isolation net, a polytetrafluoroethylene layer and a multi-faceted ball of the utility model;

[0021] Figure 3It is a schematic diagram of the structure of the multi-faceted ball in the utility model;

[0022] Figure 4 This is a front view of the multi-faceted ball in the utility model;

[0023] Figure 5 It is a top view of the multi-faceted ball in the utility model;

[0024] In the figure:

[0025] 1. Reaction tank; 2. Acid pipeline; 201. Horizontal pipe section with equal diameter; 202. Vertical pipe section with equal diameter; 3. Expanding pipe; 4. Outlet pipe; 5. Isolation net 1; 6. Isolation net 2; 7. Check valve; 8. Polyhedral ball; 801. Top ring; 802. Reinforcement ring; 803. Bottom ring; 804. Lower blade; 805. Upper blade; 9. Polytetrafluoroethylene layer. DETAILED DESCRIPTION

[0026] The utility model is described and illustrated in detail below in conjunction with the accompanying drawings.

[0027] Example 1

[0028] like Figure 1-5 As shown, the acid mist volatilization prevention device described in the utility model comprises a reaction tank 1, an acid liquid pipeline 2 is arranged on the reaction tank 1, the acid liquid pipeline 2 penetrates the top of the reaction tank 1 and extends vertically downward, the bottom end of the acid liquid pipeline 2 is close to the bottom of the reaction tank 1, the acid liquid pipeline 2 comprises an equal-diameter horizontal pipe section 201, one end of the equal-diameter horizontal pipe section 201 is vertically connected to an equal-diameter vertical pipe section 202, the end of the equal-diameter vertical pipe section 202 away from the equal-diameter horizontal pipe section 201 is connected to a flaring pipe 3, the end of the flaring pipe 3 away from the equal-diameter vertical pipe section 202 is provided with an outlet pipe 4, the pipe diameter of the outlet pipe 4 is larger than the pipe diameter of the equal-diameter vertical pipe section 202, a plurality of groups of polyhedral balls 8 are arranged inside the flaring pipe 3 and inside the outlet pipe 4, the equal-diameter horizontal pipe section 201 is arranged on the top of the reaction tank 1, the equal-diameter vertical pipe section 202 is arranged inside the reaction tank 1, and a one-way valve 7 is arranged on the equal-diameter horizontal pipe section 201.

[0029] By arranging the acid liquid pipeline 2, the expansion pipe 3 and the outlet pipe 4, the acid liquid can enter the reaction tank 1 more smoothly, and the volatilization amount of acid mist can be reduced. The bottom end of the acid liquid pipeline 2 is close to the bottom of the reaction tank 1, which reduces the contact area between the acid liquid and the air, and further reduces the volatilization amount of acid mist. By arranging the multi-faceted ball 8, the flow direction of the acid can be changed inside the expansion pipe 3 and the outlet pipe 4, and the acid liquid is prevented from directly impacting the bottom of the reaction tank 1, and splashing is avoided when the acid liquid is added to the reaction tank 1. A one-way valve 7 is arranged on the equal-diameter horizontal pipe section 201 to prevent acid contamination caused by back suction of the acid liquid in the reaction tank 1.

[0030] The expanded tube 3 is truncated cone-shaped as a whole, and the diameter of the expanded tube 3 near the equal-diameter vertical tube section 202 is equal to the diameter of the equal-diameter vertical tube section 202 , and the diameter of the expanded tube 3 near the outlet tube 4 is equal to the diameter of the outlet tube 4 .

[0031] An isolation net 5 is provided at one end of the flared pipe 3 close to the equal-diameter vertical pipe section 202. The isolation net 5 plays a blocking role to prevent the multi-faceted ball 8 from entering the equal-diameter vertical pipe section 202 from the flared pipe 3.

[0032] An isolation net 2 6 is arranged at one end of the outlet pipe 4 away from the expanded pipe 3. The isolation net 2 6 plays a blocking role to prevent the multi-faceted ball 8 from entering the reaction tank 1 from the outlet pipe 4.

[0033] The inner wall of the acid liquid pipeline 2, the inner wall of the expanded pipe 3 and the inner wall of the outlet pipe 4 are all provided with a polytetrafluoroethylene layer 9. The polytetrafluoroethylene layer 9 can enhance the corrosion resistance of the acid liquid pipeline 2, the expanded pipe 3 and the outlet pipe 4 to the acid liquid, and improve the service life of the acid liquid pipeline 2, the expanded pipe 3 and the outlet pipe 4.

[0034] The multifaceted ball 8 includes a reinforcement ring 802 . The reinforcement ring 802 is generally in a disc shape, and a connecting rod is provided through the center of the reinforcement ring 802 .

[0035] The axis of the connecting rod is arranged perpendicular to the top surface of the reinforcing ring 802 , a top ring 801 is arranged at the top end of the connecting rod, and a bottom ring 803 is arranged at the bottom end of the connecting rod.

[0036] The top surface of the reinforcing ring 802 is provided with a plurality of groups of upper blades 805 , which are evenly distributed along the circumference of the reinforcing ring 802 ; the bottom surface of the reinforcing ring 802 is provided with a plurality of groups of lower blades 804 , which are evenly distributed along the circumference of the reinforcing ring 802 .

[0037] The upper blade 805 is fixedly arranged between the top surface of the reinforcing ring 802 and the connecting rod, and the lower blade 804 is fixedly arranged between the bottom surface of the reinforcing ring 802 and the connecting rod. When the acid flows through the multi-faceted ball 8, the upper blade 805 and the lower blade 804 on the multi-faceted ball 8 will continuously change the flow direction of the acid, thereby preventing the acid from flowing directly to the bottom of the reaction tank 1.

[0038] The material of the multi-faceted ball 8 is reinforced polypropylene, which can ensure that the multi-faceted ball 8 can work stably for a long time in an acidic environment.

Claims

1. An acid mist volatilization prevention device, comprising a reaction tank (1), wherein an acid liquid pipeline (2) is arranged on the reaction tank (1), characterized in that: The acid liquid pipeline (2) penetrates the top of the reaction tank (1) and extends vertically downward. The bottom end of the acid liquid pipeline (2) is close to the bottom of the reaction tank (1). The acid liquid pipeline (2) comprises an equal-diameter horizontal pipe section (201). One end of the equal-diameter horizontal pipe section (201) is vertically connected to an equal-diameter vertical pipe section (202). An end of the equal-diameter vertical pipe section (202) away from the equal-diameter horizontal pipe section (201) is connected to a flaring pipe (3). An end of the flaring pipe (3) away from the equal-diameter vertical pipe section (202) is provided with an outlet pipe (4). The pipe diameter of the outlet pipe (4) is larger than the pipe diameter of the equal-diameter vertical pipe section (202). A plurality of groups of polyhedral balls (8) are provided inside the flaring pipe (3) and inside the outlet pipe (4). The equal-diameter horizontal pipe section (201) is provided at the top of the reaction tank (1), the equal-diameter vertical pipe section (202) is provided inside the reaction tank (1), and a one-way valve (7) is provided on the equal-diameter horizontal pipe section (201).

2. The acid mist volatilization prevention device according to claim 1, characterized in that: The expanded pipe (3) is arranged in a truncated cone shape as a whole, the pipe diameter of the expanded pipe (3) at one end close to the equal-diameter vertical pipe section (202) is equal to the pipe diameter of the equal-diameter vertical pipe section (202), and the pipe diameter of the expanded pipe (3) at one end close to the outlet pipe (4) is equal to the pipe diameter of the outlet pipe (4).

3. The acid mist volatilization prevention device according to claim 1, characterized in that: An isolation net (5) is provided at one end of the expanded pipe (3) close to the equal-diameter vertical pipe section (202).

4. The acid mist volatilization prevention device according to claim 1, characterized in that: An isolation net 2 (6) is provided at one end of the outlet pipe (4) away from the expanded pipe (3).

5. The acid mist volatilization prevention device according to claim 1, characterized in that: The inner wall of the acid liquid pipeline (2), the inner wall of the expanded pipe (3) and the inner wall of the outlet pipe (4) are all provided with a polytetrafluoroethylene layer (9).

6. The acid mist volatilization prevention device according to claim 1, characterized in that: The multifaceted ball (8) comprises a reinforcement ring (802), the reinforcement ring (802) being arranged in a disk shape as a whole, and a connecting rod being arranged through the center of the reinforcement ring (802).

7. The acid mist volatilization prevention device according to claim 6, characterized in that: The axis of the connecting rod is arranged perpendicular to the top surface of the reinforcing ring (802); a top ring (801) is arranged at the top end of the connecting rod; and a bottom ring (803) is arranged at the bottom end of the connecting rod.

8. The acid mist volatilization prevention device according to claim 6, characterized in that: The top surface of the reinforcement ring (802) is provided with a plurality of groups of upper blades (805), which are evenly distributed along the circumference of the reinforcement ring (802); the bottom surface of the reinforcement ring (802) is provided with a plurality of groups of lower blades (804), which are evenly distributed along the circumference of the reinforcement ring (802).

9. The acid mist volatilization prevention device according to claim 8, characterized in that: The upper blade (805) is fixedly arranged between the top surface of the reinforcement ring (802) and the connecting rod, and the lower blade (804) is fixedly arranged between the bottom surface of the reinforcement ring (802) and the connecting rod.

10. The acid mist volatilization prevention device according to claim 1, characterized in that: The material of the multifaceted ball (8) is reinforced polypropylene.

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