Sampling device for hydrochloric acid mixing uniformity detection

Abstract

The utility model discloses a sampling device for hydrochloric acid mixing uniformity detection, which relates to the technical field of hydrochloric acid production and comprises a mixing tank, a sampling tube is arranged at the top of the mixing tank in a penetrating manner, a pump body is fixedly mounted on the front side of the outer wall of the mixing tank, and a telescopic tube is mounted between the input end of the pump body and the top end of the sampling tube in a communicated manner. And a connecting pipe is mounted at the output end of the pump body. According to the utility model, the servo motor drives the driving gear to drive the driven gear to enable the sleeve to rotate, the sampling pipe can move up and down to adjust the height of the sampling position, the pump body pumps a hydrochloric acid solution in the mixing tank into the sampling bottle through the sampling pipe, the telescopic pipe and the connecting pipe, and then other height positions are selected for sampling in the same way; therefore, hydrochloric acid solutions at different height positions are obtained and detected, and the mixing uniformity of hydrochloric acid is judged according to the detection result of each position, so that the accuracy of the detection result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrochloric acid production, and more specifically to a sampling device for detecting the mixing uniformity of hydrochloric acid. Background Art

[0002] Hydrochloric acid, an aqueous solution of hydrogen chloride, has a wide range of industrial applications. It is a colorless, transparent liquid with a strong, pungent odor and is highly corrosive. In the chemical industry, hydrochloric acid has many important applications, crucial for product quality. It is used for pickling steel and is a chemical reagent required for the large-scale preparation of many inorganic and organic compounds. Hydrochloric acid also has numerous smaller-scale uses, such as in household cleaning, the production of gelatin and other food additives, as a descaling agent, and in leather processing.

[0003] During the hydrochloric acid production process, the concentrations of hydrochloric acid produced on different production lines may vary. To package the different concentrations of hydrochloric acid at the specified concentration, the different concentrations must be mixed in different proportions after production. During the mixing process, to ensure uniformity, the mixed solution must be sampled and measured at different heights. Traditional testing methods are unable to perform layered sampling and measurement, resulting in inaccurate test results for the mixed solution. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a sampling device for detecting the mixing uniformity of hydrochloric acid.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions.

[0006] A sampling device for detecting the uniformity of hydrochloric acid mixing comprises a mixing tank, a sampling tube is inserted into the top of the mixing tank, a pump body is fixedly installed on the front side of the outer wall of the mixing tank, a telescopic tube is installed between the input end of the pump body and the top end of the sampling tube, a connecting tube is installed at the output end of the pump body, a sampling bottle is installed at the bottom end of the connecting tube, and a servo motor is fixedly installed on the right side of the outer wall of the mixing tank, and the servo motor drives the sampling tube to move up and down to adjust the height of the sampling position.

[0007] As a further description of the above technical solution: the top of the mixing tank is rotatably connected to a sleeve through a sealed bearing, the inner wall of the sleeve is provided with an internal thread, the outer wall of the sampling tube is provided with an external thread, and the sleeve and the sampling tube are threadedly connected through the cooperation of the internal thread and the external thread.

[0008] As a further description of the above technical solution: a driving gear is fixedly sleeved on the output shaft of the servo motor, and a driven gear meshing with the driving gear is fixedly sleeved on the outer wall of the sleeve.

[0009] As a further description of the above technical solution: a limiting sleeve is fixedly connected to the outer wall of the mixing tank, a limiting rod is fixedly connected to the outer wall of the sampling tube, the limiting rod passes through the limiting sleeve at one end away from the sampling tube, and the limiting rod and the limiting sleeve are slidably fitted together.

[0010] As a further description of the above technical solution: the surface of the limit rod is provided with scale lines, and when the bottom end of the sampling tube contacts the bottom wall of the mixing tank, the lower surface of the limit sleeve is flush with the zero scale position of the scale line on the limit rod.

[0011] As a further description of the above technical solution: the end of the limiting rod away from the sampling tube is fixedly connected to the limiting block. When the top of the limiting block contacts the lower surface of the limiting sleeve, the bottom end of the sampling tube is located below the top wall of the mixing tank.

[0012] As a further description of the above technical solution: the bottom ends of the sampling bottle and the connecting tube are threadedly connected, the top of the sampling bottle is fixedly connected with an exhaust pipe, the bottom of the exhaust pipe is connected to the sampling tube, and the top of the exhaust pipe is closed and has several exhaust holes.

[0013] As a further description of the above technical solution: a fixed block is fixedly connected to the inside of the exhaust pipe, a number of through grooves are opened between the fixed block and the exhaust pipe, a sealing plate is slidingly arranged in the exhaust pipe, a spring is fixedly connected between the sealing plate and the inner top wall of the exhaust pipe, and when the spring is in a natural state, the sealing plate contacts the fixed block and closes the through grooves.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] The servo motor drives the driving gear to drive the driven gear to rotate the sleeve. The sampling tube can move up and down to adjust the height of the sampling position. The pump body pumps the hydrochloric acid solution in the mixing tank into the sampling bottle through the sampling tube, the telescopic tube and the connecting tube. Then, in the same way, other height positions are selected for sampling, thereby obtaining hydrochloric acid solutions at different height positions and conducting tests. The mixing uniformity of the hydrochloric acid is judged based on the test results at each position, thereby improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the local structure of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the sampling bottle of the present invention;

[0019] Figure 4For this utility model Figure 3 Enlarged schematic diagram of point A in the middle.

[0020] Description of the numbers in the figure:

[0021] 1. Mixing tank; 2. Sampling tube; 3. Pump body; 4. Telescopic tube; 5. Connecting tube; 6. Sampling bottle; 7. Servo motor; 8. Sleeve; 9. Driving gear; 10. Driven gear; 11. Limit sleeve; 12. Limit rod; 13. Limit block; 14. Exhaust pipe; 15. Exhaust hole; 16. Fixing block; 17. Through slot; 18. Closing plate; 19. Spring. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0023] See also Figures 1 to 4 In the utility model, a sampling device for detecting the uniformity of mixing of hydrochloric acid is provided, comprising a mixing tank 1, a sampling tube 2 being inserted through the top of the mixing tank 1, a pump body 3 being fixedly mounted on the front side of the outer wall of the mixing tank 1, the pump body 3 adopts an IHF hydrochloric acid pump, which is suitable for long-term delivery of various corrosive media such as strong acids, alkalis, salts, strong oxidants, etc. of any concentration, and has the characteristics of strong corrosion resistance, good wear resistance, high mechanical strength, no aging, and no toxin decomposition. A telescopic tube 4 is connected and mounted between the input end of the pump body 3 and the top end of the sampling tube 2, and the telescopic tube 4 adopts a telescopic bellows, and the specific material is selected according to actual conditions. A connecting tube 5 is mounted on the output end of the pump body 3, and a sampling bottle 6 is mounted on the bottom end of the connecting tube 5. A servo motor 7 is fixedly mounted on the right side of the outer wall of the mixing tank 1, and the servo motor 7 drives the sampling tube 2 to move up and down to adjust the height of the sampling position.

[0024] In this embodiment, preferably, the top of the mixing tank 1 is rotatably connected to a sleeve 8 through a sealed bearing, the inner wall of the sleeve 8 is provided with an internal thread, and the outer wall of the sampling tube 2 is provided with an external thread. The sleeve 8 and the sampling tube 2 are threadedly connected by the cooperation of the internal thread and the external thread. A driving gear 9 is fixedly sleeved on the output shaft of the servo motor 7, and a driven gear 10 meshing with the driving gear 9 is fixedly sleeved on the outer wall of the sleeve 8;

[0025] Specifically, the servo motor 7 drives the driving gear 9 to rotate, and the driven gear 10 meshing with the driving gear 9 rotates accordingly and drives the sleeve 8 to rotate, thereby realizing the rotation of the sleeve 8. When the sleeve 8 rotates, it acts on the sampling tube 2 through the thread transmission.

[0026] In this embodiment, preferably, a limiting sleeve 11 is fixedly connected to the outer wall of the mixing tank 1, and a limiting rod 12 is fixedly connected to the outer wall of the sampling tube 2. The end of the limiting rod 12 away from the sampling tube 2 passes through the limiting sleeve 11, and the limiting rod 12 and the limiting sleeve 11 are slidably fitted together;

[0027] Specifically, when the sleeve 8 rotates and acts on the sampling tube 2, the sampling tube 2 has a tendency to rotate circumferentially. At this time, the sampling tube 2 is limited by the cooperation of the limiting rod 12 and the limiting sleeve 11, so that the sampling tube 2 can move straight up or down to fit the height of the sampling position.

[0028] In this embodiment, preferably, the surface of the limiting rod 12 is provided with scale lines, and when the bottom end of the sampling tube 2 contacts the inner bottom wall of the mixing tank 1, the lower surface of the limiting sleeve 11 is flush with the zero scale position of the scale line on the limiting rod 12;

[0029] Specifically, by aligning the scale lines with the scale on the lower surface of the limiting sleeve 11, the moving position of the sampling tube 2 can be observed intuitively, which facilitates the determination of the sampling height.

[0030] In this embodiment, preferably, the end of the limiting rod 12 away from the sampling tube 2 is fixedly connected to the limiting block 13. When the top of the limiting block 13 contacts the lower surface of the limiting sleeve 11, the bottom end of the sampling tube 2 is located below the top wall of the mixing tank 1.

[0031] Specifically, the limiting plate limits the limiting rod 12 , thereby limiting the upward movement height of the sampling tube 2 , ensuring that the bottom end of the sampling tube 2 is always located in the mixing tank 1 and the sampling tube 2 will not separate from the sleeve 8 .

[0032] In this embodiment, preferably, the bottom ends of the sampling bottle 6 and the connecting tube 5 are threadedly connected, the top of the sampling bottle 6 is fixedly connected to an exhaust pipe 14, the bottom of the exhaust pipe 14 is connected to the sampling tube 2, and the top of the exhaust pipe 14 is closed and has a plurality of exhaust holes 15;

[0033] Specifically, when the pump body 3 pumps out the hydrochloric acid solution and enters the sampling bottle 6 through the connecting tube 5, there is air in the sampling bottle 6, which easily generates a large pressure. The exhaust hole 15 on the exhaust pipe 14 is used to exhaust the air, so that the pressure in the sampling tube 2 is balanced, ensuring that the sampling is not affected.

[0034] In this embodiment, preferably, a fixing block 16 is fixedly connected to the interior of the exhaust pipe 14, and a plurality of through slots 17 are opened between the fixing block 16 and the exhaust pipe 14. A sealing plate 18 is slidably provided in the exhaust pipe 14, and a spring 19 is fixedly connected between the sealing plate 18 and the inner top wall of the exhaust pipe 14. When the spring 19 is in the natural state, the sealing plate 18 contacts the fixing block 16 and closes the through slots 17.

[0035] Specifically, when hydrochloric acid solution is pumped into the sampling tube 2, if the pressure in the sampling tube 2 increases, the air therein will act on the seal through the through groove 17, lift the sealing plate 18 and squeeze the spring 19. After the sealing plate 18 is lifted, the air in the sampling bottle 6 is discharged through the through groove 17, the sealing plate 18 and the exhaust hole 15, maintaining the pressure balance in the sampling bottle 6.

[0036] The working principle and use process of this utility model:

[0037] First, the sampling bottle 6 is rotated and installed under the connecting tube 5. Then, the servo motor 7 drives the driving gear 9 to rotate, which drives the driven gear 10 engaged with it to rotate. The sleeve 8 can follow the rotation and move the sampling tube 2 upward through the threaded transmission. During this process, the sampling tube 2 drives the limiting rod 12 to slide upward along the limiting sleeve 11 to limit the sampling tube 2. The scale line on the sampling rod is used to observe the position.

[0038] When the sampling tube 2 reaches a certain position, the servo motor 7 is turned off and the pump body 3 is turned on. The pump body 3 pumps the hydrochloric acid solution in the mixing tank 1 out through the sampling tube 2 and the telescopic tube 4, and sends it into the sampling bottle 6 through the connecting tube 5. Subsequently, other height positions are selected for sampling in the same way, so as to obtain hydrochloric acid solutions at different height positions and conduct tests. The mixing uniformity of the hydrochloric acid is judged according to the test results at each position, so that the accuracy of the test results is improved.

[0039] The electronic components and modules used in the content of this utility model can all be parts commonly used in the market that can realize the specific functions in this case, and the specific models and sizes can be selected and adjusted according to actual needs. The electronic components and modules are all connected to the external power supply and control switch for use. Their specific circuit connection methods and usage methods are commonly used public technologies, so they will not be elaborated here.

[0040] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A sampling device for detecting the mixing uniformity of hydrochloric acid, comprising a mixing tank (1), characterized in that: A sampling tube (2) is inserted into the top of the mixing tank (1), a pump body (3) is fixedly installed on the front side of the outer wall of the mixing tank (1), a telescopic tube (4) is installed between the input end of the pump body (3) and the top end of the sampling tube (2), a connecting tube (5) is installed at the output end of the pump body (3), a sampling bottle (6) is installed at the bottom end of the connecting tube (5), and a servo motor (7) is fixedly installed on the right side of the outer wall of the mixing tank (1), and the servo motor (7) drives the sampling tube (2) to move up and down to adjust the height of the sampling position.

2. A sampling device for detecting the mixing uniformity of hydrochloric acid according to claim 1, characterized in that: The top of the mixing tank (1) is rotatably connected to a sleeve (8) via a sealed bearing, the inner wall of the sleeve (8) is provided with an internal thread, and the outer wall of the sampling tube (2) is provided with an external thread, and the sleeve (8) and the sampling tube (2) are threadedly connected by the cooperation of the internal thread and the external thread.

3. A sampling device for detecting the mixing uniformity of hydrochloric acid according to claim 2, characterized in that: A driving gear (9) is fixedly sleeved on the output shaft of the servo motor (7), and a driven gear (10) meshing with the driving gear (9) is fixedly sleeved on the outer wall of the sleeve (8).

4. The sampling device for detecting the mixing uniformity of hydrochloric acid according to claim 1, characterized in that: A limiting sleeve (11) is fixedly connected to the outer wall of the mixing tank (1), and a limiting rod (12) is fixedly connected to the outer wall of the sampling tube (2). An end of the limiting rod (12) away from the sampling tube (2) passes through the limiting sleeve (11), and the limiting rod (12) and the limiting sleeve (11) are slidably fitted.

5. A sampling device for detecting the mixing uniformity of hydrochloric acid according to claim 4, characterized in that: The surface of the limiting rod (12) is provided with scale lines, and when the bottom end of the sampling tube (2) contacts the inner bottom wall of the mixing tank (1), the lower surface of the limiting sleeve (11) is flush with the zero scale position of the scale lines on the limiting rod (12).

6. The sampling device for detecting the mixing uniformity of hydrochloric acid according to claim 4, characterized in that: One end of the limiting rod (12) away from the sampling tube (2) is fixedly connected to the limiting block (13); when the top of the limiting block (13) contacts the lower surface of the limiting sleeve (11), the bottom end of the sampling tube (2) is located below the inner top wall of the mixing tank (1).

7. The sampling device for detecting the mixing uniformity of hydrochloric acid according to claim 1, characterized in that: The bottom ends of the sampling bottle (6) and the connecting tube (5) are threadedly connected, the top of the sampling bottle (6) is fixedly connected with an exhaust pipe (14), the bottom of the exhaust pipe (14) is connected to the sampling tube (2), and the top of the exhaust pipe (14) is closed and has a plurality of exhaust holes (15).

8. A sampling device for detecting the mixing uniformity of hydrochloric acid according to claim 7, characterized in that: A fixed block (16) is fixedly connected to the interior of the exhaust pipe (14), a plurality of through slots (17) are provided between the fixed block (16) and the exhaust pipe (14), a sealing plate (18) is slidably provided in the exhaust pipe (14), a spring (19) is fixedly connected between the sealing plate (18) and the inner top wall of the exhaust pipe (14), and when the spring (19) is in a natural state, the sealing plate (18) contacts the fixed block (16) and closes the through slots (17).

Images