CN221826689U - A field detection device for ammonia concentration - Google Patents

Abstract

The utility model provides an on-site detection device for ammonia concentration, which belongs to the technical field of ammonia detection devices, including a box body, a neutralization box is arranged inside, a liquid inlet and a liquid outlet connected to the neutralization box are vertically penetrated at both ends of the box body, a plurality of color sensors are arranged on the box body directly facing the neutralization box, a microcomputer connected to the color sensor signal is arranged on the neutralization box, a water level sensor connected to the microcomputer signal is arranged on the box body directly facing the neutralization box, a hydrochloric acid storage tank is connected to the top of the neutralization box, and a methyl orange storage tank is connected to the top of the neutralization box. By arranging the water level sensor and the color sensor, the change of ammonia in the neutralization box is monitored in real time through the cooperation of multiple groups of sensors, and the calculation is verified by the microcomputer. The whole process is simple to operate, and it is convenient to quickly calculate the concentration of ammonia, thereby improving the detection efficiency of ammonia concentration.

Description

A field detection device for ammonia concentration

Technical Field

The utility model relates to the technical field of ammonia water detection devices, in particular to an on-site detection device for ammonia water concentration.

Background Art

Ammonia water, also known as ammonia water, refers to an aqueous solution of ammonia, and its main component is NH3·H2O. It is a colorless liquid with a special ammonia smell. Ammonia water is volatile and has the general properties of some alkalis. It is made by passing ammonia gas into water. When testing the concentration of ammonia water, the concentration of ammonia water fluctuates because the amount of liquid ammonia and water cannot be accurately controlled and cannot be controlled within the index range. It is often necessary to manually take samples in the laboratory and then conduct tests to determine the concentration of ammonia water. However, this method is time-consuming and laborious.

In order to address the above problems, a Chinese patent with an existing announcement number of CN216433828U proposes an on-site detection device for ammonia water concentration. The device opens the return liquid pipeline valve and the liquid extraction pipeline valve in sequence, fills a certain amount of ammonia water into a solution reservoir, and then closes the liquid extraction pipeline valve and the return liquid valve respectively. After the ammonia water is allowed to stand, the density of the ammonia water is read by a float density meter, and the temperature of the ammonia water is read by a thermometer. Finally, the actual concentration of the ammonia water on site is found out according to the ammonia water density-concentration-temperature comparison table.

However, although the above-mentioned on-site detection device for ammonia concentration can detect ammonia through a float density meter and a thermometer, and then calculate the concentration of ammonia through a comparison table, the on-site detection device for ammonia concentration requires manual control of the return liquid pipeline valve and the liquid extraction pipeline valve to regulate the amount of ammonia in the solution storage tank, and calculate the ammonia concentration through the density value on the float density meter and the thermometer value. The whole process is time-consuming and labor-intensive, resulting in a problem of low efficiency in detecting the ammonia concentration value. Therefore, the utility model provides a field detection device for ammonia concentration to meet the demand.

Utility Model Content

The purpose of the utility model is to solve the problems existing in the above-mentioned background technology, and to propose an on-site detection device for ammonia concentration.

The technical problem to be solved by the utility model is to provide an on-site detection device for ammonia concentration to solve the problem that the existing ammonia concentration detection device requires manual calculation of the ammonia concentration based on the density value and the temperature value, and the whole process is relatively time-consuming and labor-intensive, resulting in low efficiency in detecting the ammonia concentration value.

In order to solve the above technical problems, the utility model provides the following technical solutions:

An on-site detection device for ammonia concentration, comprising:

A box body, a neutralization box is arranged inside the box body, a liquid inlet and a liquid outlet connected to the neutralization box are vertically penetrated at both ends of the box body, a plurality of color sensors are arranged on the box body facing the neutralization box, a microcomputer connected to the color sensor signal is arranged on the neutralization box, and a water level sensor connected to the microcomputer signal is arranged on the box body facing the neutralization box;

A hydrochloric acid storage tank, which is connected and arranged on the top of the neutralization tank;

A methyl orange storage tank is connected to the top of the neutralization tank.

Preferably, the liquid inlet and the liquid outlet are provided with a first electric valve and a second electric valve respectively, the box body is provided with a controller for controlling the first electric valve and the second electric valve, and the controller is connected to the microcomputer signal.

Preferably, the methyl orange storage tank is provided with a third electric valve for controlling the connection between the methyl orange storage tank and the neutralization tank, and the third electric valve is connected to the controller signal.

Preferably, the hydrochloric acid storage tank is provided with an electric flow regulating valve connected to the neutralization tank through a controller, and the electric flow regulating valve is connected to the controller signal.

Preferably, a through hole is penetrated through the top of the neutralization box, and a sealing cover for sealing the through hole is provided on the neutralization box.

Preferably, the box body is hinged with a box cover, the microcomputer is fixed on the box cover, two groups of connecting rods rotatably connected in pairs are hinged between the box cover and the box body, and the two groups of connecting rods are relatively arranged at both ends of the box body and the box cover.

Compared with the prior art, the utility model has at least the following beneficial effects:

In the above scheme, by setting up water level sensors and color sensors, the changes of ammonia water in the neutralization box are monitored in real time through the cooperation of multiple groups of sensors, and verified by a microcomputer. The whole process is simple to operate, which is convenient for quickly calculating the concentration of ammonia water and improving the detection efficiency of ammonia water concentration.

In the above scheme, by setting the first electric valve, the third electric valve, and the electric flow control valve, the multiple groups of electric valves can control the entry and discharge of ammonia water in the neutralization box in real time, and control the emission of methyl orange. At the same time, the electric flow control valve is convenient for controlling the discharge rate of hydrochloric acid in the hydrochloric acid storage tank, thereby realizing the automatic deployment of the device and improving the efficiency of monitoring the concentration of ammonia water.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a schematic diagram of a partial structure of FIG1 of the present invention from another viewing angle;

Figure 3 is a schematic diagram of the structure of the utility model when the box cover is opened;

FIG4 is a top view of FIG3 of the present utility model;

FIG5 is a schematic diagram of a partial structure of a first electric valve of the utility model;

FIG. 6 is a schematic diagram of the internal structure of the neutralization box of the present invention.

[reference numerals]

1. Box body; 2. Box cover; 3. Drain port; 4. Liquid inlet; 5. Microcomputer; 6. Connecting rod; 7. Neutralization box; 8. First electric valve; 9. Methyl orange storage tank; 10. Hydrochloric acid storage tank; 11. Electric flow control valve; 12. Battery; 13. Controller; 14. Water level sensor; 15. Color sensor; 16. Second electric valve; 17. Sealing cover; 18. Third electric valve; 19. Through hole.

DETAILED DESCRIPTION

As shown in Figures 1 to 6, an embodiment of the utility model provides an on-site detection device for ammonia concentration, including a box body 1, a neutralization box 7 is arranged inside the box body, a liquid inlet 4 and a liquid discharge port 3 connected to the neutralization box 7 are vertically penetrated at both ends of the box body 1, a plurality of color sensors 15 are arranged opposite to the neutralization box 7, a microcomputer 5 connected to the signal of the color sensor 15 is arranged on the neutralization box 7, a water level sensor 14 connected to the signal of the microcomputer 5 is arranged on the box body 1 opposite to the neutralization box 7, a hydrochloric acid storage tank 10 is connected to the top of the neutralization box 7, and a methyl orange storage tank 9 is connected to the top of the neutralization box 7.

Specifically, the ammonia water is discharged into the neutralization box 7 through the liquid inlet 4, and then the neutralization box 7 and the liquid level are monitored by the water level sensor 14 and the signal is sent to the microcomputer 5 for recording. After that, the methyl orange storage tank 9 is first used to neutralize the methyl orange solution and discharge it into the neutralization box 7. After the discharge is completed, the water level sensor 14 sends the monitoring signal to the microcomputer 5 for recording. At this time, the hydrochloric acid in the hydrochloric acid storage tank 10 is easily and slowly dripped into the neutralization box 7. With the continuous addition of hydrochloric acid, the alkalinity of the solution is gradually neutralized, and the color of the methyl orange will change from yellow to orange. In order to accurately determine the endpoint of the titration of hydrochloric acid against ammonia water, it is necessary to continue the titration operation until the color of the solution does not change within about 30 seconds. This is because at the endpoint, the acidity in the solution is strong enough to make the methyl orange The color of the solution changes from red to orange. If the operation is accurate, the solution will remain orange when the titration endpoint is reached. During the whole process, the color sensor 15 will monitor the liquid in the neutralization box 7 and send a signal to the microcomputer 5. When the color of the solution in the neutralization box 7 exceeds and does not change, the color sensor 15 will send a signal to the microcomputer 5. At this time, the microcomputer 5 can calculate the concentration of ammonia water according to the volume of hydrochloric acid consumed in the titration process. The whole process is simple to operate, which is convenient for quickly calculating the concentration of ammonia water, improving the detection efficiency of ammonia water concentration, and solving the problem that the existing ammonia water concentration detection device needs to manually calculate the ammonia water concentration according to the density value and the temperature value. The whole process is relatively time-consuming and labor-intensive, resulting in a low detection efficiency of the ammonia water concentration value.

It should be noted that a battery 12 is provided in the box 1 for providing power to the microcomputer 5 and other equipment. The connection between the microcomputer 5 and the color sensor 15 and the water temperature sensor is a prior art; further, the calculation formula for the concentration of ammonia water is: C=n×V×M/V0, wherein C represents the concentration of ammonia water (mol/L), n represents the number of moles of hydrochloric acid, V represents the volume of hydrochloric acid (L), M represents the molar mass of hydrochloric acid (g/mol), and V0 represents the volume of the test solution (L). Through this formula, we can obtain relevant data on the concentration of ammonia water; in addition, the neutralization box 7 is made of transparent glass.

As shown in FIGS. 4 to 6 , in the present embodiment, the first electric valve 8 and the second electric valve 16 are respectively provided on the liquid inlet 4 and the liquid discharge port 3, the box body 1 is provided with a controller 13 for controlling the first electric valve 8 and the second electric valve 16, the controller 13 is connected to the microcomputer 5 by signal, the methyl orange storage tank 9 is provided with a third electric valve 18 for controlling the connection between the methyl orange storage tank 9 and the neutralization tank 7, the third electric valve 18 is connected to the controller 13 by signal, the hydrochloric acid storage tank 10 is provided with an electric flow regulating valve 11 for connecting the controller 13 with the neutralization tank 7, the electric flow regulating valve 11 is connected to the controller 13 by signal, specifically, the entry and discharge of ammonia water in the neutralization tank 7 and the discharge amount of methyl orange can be controlled in real time through multiple groups of electric valves, and the electric flow regulating valve 11 is convenient for controlling the discharge speed of hydrochloric acid in the hydrochloric acid storage tank 10, thereby realizing the automatic delivery of the device and improving the efficiency of monitoring the concentration of ammonia water.

As shown in FIG. 4 and FIG. 6 , in this embodiment, a through hole 19 is provided through the top of the neutralization box 7 , and a sealing cover 17 is provided on the neutralization box 7 to seal the through hole 19 . Specifically, the through hole 19 is provided to facilitate the introduction of items such as ammonia water into the neutralization box 7 .

As shown in Figures 1 and 3, in this embodiment, the box body 1 is hinged with a box cover 2, the microcomputer 5 is fixed on the box cover 2, and two groups of connecting rods 6 that are rotatably connected in pairs are hinged between the box cover 2 and the box body 1. The two groups of connecting rods 6 are relatively arranged at both ends of the box body 1 and the box cover 2.

Working principle:

Ammonia water is discharged into the neutralization box 7 through the liquid inlet 4, and then the neutralization box 7 and the liquid level are monitored by the water level sensor 14 and the signal is sent to the microcomputer 5 for recording. After that, the methyl orange storage tank 9 is first used to neutralize the methyl orange solution and discharge it into the neutralization box 7. After the discharge is completed, the water level sensor 14 sends the monitoring signal to the microcomputer 5 for recording. At this time, the hydrochloric acid in the hydrochloric acid storage tank 10 is easily and slowly dripped into the neutralization box 7. With the continuous addition of hydrochloric acid, the alkalinity of the solution is gradually neutralized, and the color of the methyl orange will change from yellow to orange. In order to accurately determine the endpoint of the titration of hydrochloric acid against ammonia water, it is necessary to continue the titration operation until the color of the solution does not change within about 30 seconds. This is because at the endpoint, the acidity in the solution is strong enough to make the color of the methyl orange The color changes from red to orange. If the operation is accurate, the solution will remain orange when the titration endpoint is reached. During the whole process, the color sensor 15 will monitor the liquid in the neutralization box 7 and send a signal to the microcomputer 5. When the color of the solution in the neutralization box 7 exceeds and does not change, the color sensor 15 will send a signal to the microcomputer 5. At this time, the microcomputer 5 can calculate the concentration of ammonia water according to the volume of hydrochloric acid consumed in the titration process. The whole process is simple to operate, which is convenient for quickly calculating the concentration of ammonia water, improving the detection efficiency of ammonia water concentration, and solving the problem that the existing ammonia water concentration detection device needs to manually calculate the ammonia water concentration according to the density value and temperature value. The whole process is time-consuming and labor-intensive, resulting in low detection efficiency of ammonia water concentration value.

Claims (6)

1. An on-site detection device for ammonia concentration, comprising:

The automatic water level control device comprises a box body (1), wherein a neutralization box (7) is arranged in the box body, a liquid inlet (4) and a liquid outlet (3) which are communicated with the neutralization box (7) are vertically and penetratingly arranged at two ends of the box body (1), the box body (1) is opposite to the neutralization box (7) and is provided with a plurality of color sensors (15), a microcomputer (5) in signal connection with the color sensors (15) is arranged on the neutralization box (7), and a water level sensor (14) in signal connection with the microcomputer (5) is opposite to the neutralization box (7) on the box body (1);

The hydrochloric acid liquid storage tank (10) is communicated with the top of the neutralization tank (7);

and the methyl orange liquid storage tank (9) is communicated with the top of the neutralization tank (7).

2. The on-site detection apparatus for ammonia concentration according to claim 1, wherein: the liquid inlet (4) and the liquid outlet (3) are respectively provided with a first electric valve (8) and a second electric valve (16), the box body (1) is provided with a controller (13) for controlling the first electric valve (8) and the second electric valve (16), and the controller (13) is in signal connection with the microcomputer (5).

3. The on-site detection apparatus for ammonia concentration according to claim 2, wherein: the methyl orange liquid storage tank (9) is provided with a third electric valve (18) for controlling the methyl orange liquid storage tank to be communicated with the neutralization tank (7), and the third electric valve (18) is in signal connection with the controller (13).

4. The on-site detection apparatus for ammonia concentration according to claim 2, wherein: the hydrochloric acid liquid storage tank (10) is provided with an electric flow regulating valve (11) which is communicated with the neutralization tank (7) through a controller (13), and the electric flow regulating valve (11) is in signal connection with the controller (13).

5. The on-site detection apparatus for ammonia concentration according to claim 1, wherein: the top of the neutralization box (7) is provided with a through hole (19) in a penetrating way, and the neutralization box (7) is provided with a sealing cover (17) for sealing the through hole (19).

6. The on-site detection apparatus for ammonia concentration according to claim 1, wherein: the box body (1) is hinged with a box cover (2), the microcomputer (5) is fixed on the box cover (2), two groups of connecting rods (6) which are connected in a two-by-two rotating mode are hinged between the box cover (2) and the box body (1), and the two groups of connecting rods (6) are oppositely arranged at two ends of the box body (1) and the box cover (2).