A product metering tank for producing a sodium methanethiolate solution

Abstract

The utility model relates to the technical field of metering tank, concretely is a kind of product metering tank for sodium methanethiol solution production, including bottom plate, the upper surface of bottom plate is fixedly connected with nitrogen storage tank and control switch, the inner wall of bottom plate is fixedly connected with metering tank main body, the top of metering tank main body is fixedly connected with metering pump, the top of metering tank main body is fixedly connected with driving motor, the inner wall of metering tank main body is fixedly connected with bearing and annular pipe.The product metering tank for sodium methanethiol solution production, driving motor output power is rotated by being set to drive stirring rod, the structure can break the solid particle precipitate in sodium methanethiol solution in real time, avoid solution layering, significantly improve solution overall uniformity, solve the problem " because of solution unevenness leads to measurement error " from source, provide basic guarantee for subsequent metering pump accurate measurement, substantially improve the measurement accuracy of sodium methanethiol solution.

Description

Technical Field

[0001] This utility model relates to the field of metering tank technology, specifically a product metering tank for the production of sodium methanethiol solution. Background Technology

[0002] Metering tanks are industrial equipment used for material storage and measurement, primarily in chemical, petroleum, and pharmaceutical industries. They are suitable for applications where high measurement accuracy is not required. Metering tanks are available in vertical and horizontal structures, and are made of materials such as carbon steel, stainless steel, and polypropylene, possessing corrosion resistance and high-temperature resistance. Currently, metering tanks for storing sodium methanethiol solutions use plastic-lined carbon steel or polyethylene rotational molding materials, which effectively resist alkaline corrosion and avoid iron ion contamination, ensuring solution quality. However, sodium methanethiol solutions are prone to solid particle precipitation within the metering tank, making continuous stirring and mixing of the internal solution impossible, resulting in poor solution homogeneity and reduced measurement accuracy. Therefore, we propose a product metering tank for sodium methanethiol solution production to solve the above problems. Utility Model Content

[0003] To address the above technical problems, this utility model provides a product metering tank for the production of sodium methanethiol solution.

[0004] To solve the above-mentioned technical problems, the present invention provides a metering tank for the production of sodium methanethiol solution, comprising a base plate and a metering tank body. The top of the metering tank body is fixedly connected to an inlet and a pressure relief valve. A nitrogen storage tank and a control switch are fixedly connected to the top of the base plate. The bottom of the metering tank body penetrates the base plate and is fixedly connected thereto. A metering pump is fixedly connected to the top of the metering tank body. A drive motor is fixedly connected to the top of the metering tank body, and a discharge valve is fixedly connected to the bottom. A stirring rod is fixedly connected to the output end of the drive motor, and the stirring rod penetrates the metering tank body and extends inward. An annular tube is fixedly connected to the inner wall of the metering tank body. Several identical exhaust holes are opened on the outer surface of the annular tube. An air pump is fixedly connected to the outer surface of the nitrogen storage tank. The output end of the air pump penetrates the metering tank body and is fixedly connected to the outer surface of the annular tube. The input end of the air pump is connected to the nitrogen storage tank. The drive motor, air pump, and metering pump are controlled by the control switch.

[0005] Furthermore, a reinforcing frame is fixedly connected to the outer surface of the control switch, and the bottom surface of the reinforcing frame is fixedly connected to the upper surface of the base plate.

[0006] Furthermore, the bottom surface of the base plate is fixedly connected to four support feet, and the outer surface of each set of support feet is fixedly connected to two reinforcing rings, the top of each set of reinforcing rings being fixedly connected to the bottom surface of the base plate.

[0007] Furthermore, a protective box is provided outside the drive motor, and the bottom surface of the protective box is detachably connected to the top surface of the metering tank body.

[0008] Furthermore, a support frame is detachably connected to the outer surface of the metering pump, and the bottom surface of the support frame is fixedly connected to the top of the metering tank body.

[0009] Furthermore, a limit frame is detachably connected to the outer surface of the discharge valve, and the upper surface of the limit frame is fixedly connected to the bottom end of the metering tank body.

[0010] Furthermore, the outer surface of the air pump is detachably connected to a fixing frame, and the bottom surface of the fixing frame is fixedly connected to the upper surface of the base plate.

[0011] Furthermore, a sealing ring is fixedly connected to the outer surface of the gas pump input end, and the outer surface of the sealing ring is fixedly connected to the outer surface of the nitrogen storage tank.

[0012] This utility model has the following advantages compared with the prior art:

[0013] 1. This invention utilizes a drive motor to rotate the stirring rod, while bearings reduce frictional resistance during rotation, ensuring continuous and stable stirring. This structure can break up solid particle precipitates in sodium methanethiol solution in real time, preventing solution stratification and significantly improving overall solution uniformity. It addresses the problem of metering errors caused by solution inhomogeneity at its source, providing a fundamental guarantee for accurate metering by subsequent metering pumps and greatly improving the metering accuracy of sodium methanethiol solution.

[0014] 2. This utility model uses a nitrogen protection system consisting of a nitrogen storage tank, a gas pump, an annular pipe, and an exhaust port to stably deliver nitrogen into the metering tank. The gas pump sends the nitrogen from the nitrogen storage tank into the annular pipe, and then releases it evenly into the solution through several exhaust ports on the outer surface of the annular pipe. On the one hand, nitrogen can isolate air and prevent sodium methanethiol solution from reacting with oxygen, carbon dioxide, and other components in the air, thus avoiding solution deterioration or decrease in purity. On the other hand, the disturbance generated when nitrogen bubbles are released from the exhaust ports can assist the stirring rod to further enhance the solution mixing effect, forming a dual mixing mechanism of "mechanical stirring + gas disturbance", which further improves the uniformity and stability of the solution. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the air pump structure;

[0017] Figure 3 This is a schematic diagram of the stirring rod structure;

[0018] Figure 4This is a schematic diagram of the exhaust port structure;

[0019] Figure 5 This is a schematic diagram of the discharge valve structure.

[0020] In the diagram: 1. Base plate; 2. Nitrogen storage tank; 3. Metering tank body; 4. Protective box; 5. Control switch; 6. Reinforcing frame; 7. Support leg; 8. Metering pump; 9. Support frame; 10. Drive motor; 11. Sealing ring; 12. Fixing frame; 13. Air pump; 14. Annular pipe; 15. Bearing; 16. Stirring rod; 17. Exhaust port; 18. Discharge valve; 19. Limiting frame; 20. Reinforcing ring; 21. Pressure relief valve; 22. Feed inlet. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figures 1 to 5 The product metering tank for producing sodium methanethiol solution shown includes a base plate 1. A nitrogen storage tank 2 and a control switch 5 are fixedly connected to the upper surface of the base plate 1. A metering tank body 3 is fixedly connected to the inner wall of the base plate 1. A discharge valve 18 is fixedly connected to the bottom end of the metering tank body 3. A pressure relief valve 21 and a feed inlet 22 are fixedly connected to the top of the metering tank body 3. The pressure relief valve 21 can balance the air pressure inside and outside the metering tank body 3. A reinforcing frame 6 is fixedly connected to the outer surface of the control switch 5. The bottom surface of the reinforcing frame 6 is fixedly connected to the upper surface of the base plate 1. The reinforcing frame 6 can fix the position of the control switch 5 and enhance the stability of the device. A drive motor 10 is fixedly connected to the top of the metering tank body 3. A protective box 4 is fixedly connected to the outer surface of the drive motor 10. The bottom surface of the protective box 4 is fixedly connected to the top of the metering tank body 3. The end is fixedly connected, and the protective box 4 can protect the drive motor 10 to prevent it from being interfered with by the outside during use. The top of the inner wall of the metering tank body 3 is connected to the bearing 15, and the bottom is connected to the annular pipe 14. Several identical exhaust holes 17 are opened on the outer surface of the annular pipe 14. The top of the metering tank body 3 is fixedly connected to the metering pump 8. The input end of the metering pump 8 passes through the metering tank body 3 and extends to the bottom center of the metering tank body 3 to avoid sucking in nitrogen gas delivered from all sides through the annular pipe 14. The inner ring of the bearing 15 is fixedly connected to the stirring rod 16. The stirring blades on the stirring rod 16 are arranged in a triangular shape and are arranged in multiple layers at equal intervals. The top of the stirring rod 16 is fixedly connected to the output end of the drive motor 10. The drive motor 10, the air pump 13, and the metering pump 8 are controlled by the control switch 5.

[0023] Four support feet 7 are fixedly connected to the bottom surface of the base plate 1. Two reinforcing rings 20 are fixedly connected to the outer surface of each set of support feet 7. The top of each set of reinforcing rings 20 is fixedly connected to the bottom surface of the base plate 1. Through the support feet 7 and the reinforcing rings 20, the device as a whole can be stably supported, preventing the device from shifting its position during use.

[0024] A gas pump 13 is fixedly connected to the outer surface of the nitrogen storage tank 2. The output end of the gas pump 13 is fixedly connected to the outer surface of the metering tank body 3 and the annular pipe 14 through a pipe. The input end of the gas pump 13 is connected to the nitrogen storage tank 2. The output end pipe of the gas pump 13 is preferably designed in an arch shape, with the highest point of the arch being higher than the height of the metering tank body 3. This can prevent the backflow of sodium methanethiol solution. A support frame 9 is detachably connected to the outer surface of the metering pump 8 by bolts. The bottom surface of the support frame 9 is fixedly connected to the top of the metering tank body 3. The support frame 9 can fix and support the metering pump 8 to prevent it from swaying during use.

[0025] The outer surface of the discharge valve 18 is detachably connected to the limit frame 19 by bolts. The upper surface of the limit frame 19 is fixedly connected to the bottom end of the metering tank body 3. The limit frame 19 can fix and limit the position of the discharge valve 18, thus playing a fixed and limiting role.

[0026] The outer surface of the air pump 13 is detachably connected to a fixing frame 12 by bolts. The bottom surface of the fixing frame 12 is fixedly connected to the upper surface of the base plate 1. The fixing frame 12 can fix the air pump 13 and prevent it from shifting or becoming unstable during use.

[0027] A sealing ring 11 is fixedly connected to the outer surface of the input end of the air pump 13. The outer surface of the sealing ring 11 is fixedly connected to the outer surface of the nitrogen storage tank 2. The sealing ring 11 can seal the connection between the air pump 13 and the nitrogen storage tank 2.

[0028] The working process of this embodiment is as follows:

[0029] In use, firstly, the drive motor 10 is started via control switch 5. The motor output drives the fixed stirring rod 16 to rotate. Since the stirring rod 16 is fixed to the inner ring of the bearing 15 on the inner wall of the metering tank body 3, the bearing 15 can significantly reduce the frictional resistance when the stirring rod 16 rotates, ensuring that the stirring rod 16 rotates continuously at a stable speed, ensuring that the solid particles are dispersed by the stirring rod 16 and that the solution does not have obvious stratification. Next, the air pump 13 is turned on via control switch 5. The air pump 13 delivers nitrogen from the nitrogen storage tank 2 to the annular pipe 14 on the inner wall of the metering tank body 3. The annular pipe 14 is distributed around the circumference of the inner wall of the metering tank body 3, and several vent holes 17 on its outer surface release nitrogen evenly into the solution, forming micro- Small air bubbles, on the one hand, can isolate the solution from the residual air in the metering tank, preventing the sodium methanethiol solution from reacting with oxygen and carbon dioxide, which could lead to deterioration or a decrease in purity. On the other hand, the disturbance generated during the rise of the bubbles can assist the stirring rod 16 to further improve the uniformity of the solution. Especially for the sediment that is easy to remain at the bottom of the metering tank body 3, the bubble disturbance can reduce the accumulation of sediment. The metering pump 8 draws a uniform sodium methanethiol solution from the metering tank body 3 and delivers the solution to the subsequent production process according to the set flow parameters. During the delivery process, the stirring system and the nitrogen protection system run continuously to prevent the solution from precipitating again or reacting with oxygen, carbon dioxide and other components in the air during the metering period.

Claims

1. A product metering tank for the production of sodium methanethiol solution, comprising a base plate (1), a metering tank body (3), wherein the top of the metering tank body (3) is fixedly connected to a feed inlet (22) and a pressure relief valve (21), characterized in that: A nitrogen storage tank (2) and a control switch (5) are fixedly connected to the top of the base plate (1). The bottom of the metering tank body (3) passes through the base plate (1) and is fixedly connected to it. A metering pump (8) is fixedly connected to the top of the metering tank body (3). A drive motor (10) is fixedly connected to the top of the metering tank body (3), and a discharge valve (18) is fixedly connected to the bottom. A stirring rod (16) is fixedly connected to the output end of the drive motor (10). The stirring rod (16) passes through the metering tank body (3) and extends inward. The inner wall of the metering tank body (3) is fixedly connected to an annular pipe (14). The outer surface of the annular pipe (14) is provided with several identical exhaust holes (17). The outer surface of the nitrogen storage tank (2) is fixedly connected to an air pump (13). The output end of the air pump (13) passes through the metering tank body (3) and is fixedly connected to the outer surface of the annular pipe (14). The input end of the air pump (13) is connected to the nitrogen storage tank (2). The drive motor (10), the air pump (13), and the metering pump (8) are controlled by a control switch (5).

2. The product metering tank for producing sodium methanethiol solution according to claim 1, characterized in that: The outer surface of the control switch (5) is fixedly connected to a reinforcing frame (6), and the bottom surface of the reinforcing frame (6) is fixedly connected to the upper surface of the base plate (1).

3. The product metering tank for producing sodium methanethiol solution according to claim 1, characterized in that: The bottom surface of the base plate (1) is fixedly connected with four support feet (7). Each set of support feet (7) has two reinforcing rings (20) fixedly connected to its outer surface. The top of each set of reinforcing rings (20) is fixedly connected to the bottom surface of the base plate (1).

4. The product metering tank for producing sodium methanethiol solution according to claim 1, characterized in that: The drive motor (10) is provided with a protective box (4), and the bottom surface of the protective box (4) is detachably connected to the top of the metering tank body (3).

5. The product metering tank for producing sodium methanethiol solution according to claim 1, characterized in that: The outer surface of the metering pump (8) is detachably connected to a support frame (9), and the bottom surface of the support frame (9) is fixedly connected to the top of the metering tank body (3).

6. The product metering tank for producing sodium methanethiol solution according to claim 1, characterized in that: The outer surface of the discharge valve (18) is detachably connected to a limit frame (19), and the upper surface of the limit frame (19) is fixedly connected to the bottom end of the metering tank body (3).

7. The product metering tank for producing sodium methanethiol solution according to claim 1, characterized in that: The outer surface of the air pump (13) is detachably connected to a fixing frame (12), and the bottom surface of the fixing frame (12) is fixedly connected to the upper surface of the base plate (1).

8. A product metering tank for producing sodium methanethiol solution according to claim 1, characterized in that: A sealing ring (11) is fixedly connected to the outer surface of the input end of the air pump (13), and the outer surface of the sealing ring (11) is fixedly connected to the outer surface of the nitrogen storage tank (2).

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