Device for analyzing total ammonia in solid-liquid mixture

Abstract

The utility model discloses a device for analyzing total ammonia in a solid-liquid mixture, which comprises a ventilation device, a condensate water tank and a plurality of distillation units, the distillation units are mutually independent, the distillation units are arranged in the ventilation device, each distillation unit comprises a distillation subunit and a heating device, the distillation subunit comprises a distillation flask arranged on the heating device, and the heating device is arranged on the distillation flask. The distillation bottle is connected with a distillation ball, the distillation ball is connected with an inlet connecting pipe, the inlet connecting pipe is connected with a gas inlet, the gas inlet is connected with a condensation pipe, the condensation pipe is connected with a liquid outlet, the liquid outlet is connected with an outlet connecting pipe, and the outlet connecting pipe is connected with a sample absorption bottle; a water inlet is formed in the lower portion of the condensation water tank, and a water outlet is formed in the upper portion of the condensation water tank. Compared with the prior art, the distillation units are mutually independent, the simultaneous use of a plurality of distillation units is realized, more than ten samples can be heated at the same time, in addition, a spare distillation unit can be directly replaced when a single distillation unit fails, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of total ammonia analysis of solid-liquid mixtures, in particular to a device for analyzing total ammonia in solid-liquid mixtures. Background Art

[0002] At present, the distillation unit of the ammonia evaporation equipment on the market is placed in the ammonia evaporation device, which can heat four to six samples at a time. When a fault occurs, it cannot be independently repaired, and all heating positions cannot be used separately; the condenser is a spiral glass tube built into the distillation ball, which is difficult to clean and easy to clog when liquid cross-linking occurs and solid residues; the distillation flask used is used for continuous high-temperature cooking with a high breakage rate, and its price is expensive and the loss is large; the cooling system is a compressor that adds refrigerants such as Freon for internal circulation refrigeration, which consumes a lot of electricity and has high maintenance costs in the later stage. The tap water cooling used in some common ammonia evaporation equipment in the market requires the cold water to be in a normally open state, resulting in a large waste of water resources. The above-mentioned ammonia evaporation device cannot meet the requirements of continuous detection and analysis of solid-liquid mixture media, simultaneous detection of multiple samples, and guarantee of detection timeliness. Therefore, there is an urgent need for an applicable and economical ammonia evaporation equipment. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a device for analyzing the total ammonia of a solid-liquid mixture. The distillation units are independent of each other, so multiple distillation units can be used simultaneously. Each distillation unit can heat two to four samples, and more than a dozen samples can be heated simultaneously. In addition, if a single distillation unit fails, a spare distillation unit can be directly replaced, which is simple and convenient.

[0004] To achieve this technical purpose, the utility model adopts the following scheme:

[0005] A device for analyzing total ammonia in a solid-liquid mixture comprises a ventilation device, a condensation water tank and a plurality of distillation units, wherein the distillation units are independent of each other and are installed in the ventilation device. The distillation unit comprises a distillation subunit and a heating device. The distillation subunit comprises a distillation flask arranged on the heating device, the distillation flask is connected to a distillation ball, the distillation ball is connected to an inlet connecting pipe, the inlet connecting pipe is connected to a gas inlet, the gas inlet is connected to a condensation pipe, the condensation pipe is connected to a liquid outlet, the liquid outlet is connected to an outlet connecting pipe, and the outlet connecting pipe is connected to a sample absorption bottle; the condensation pipe is arranged in the condensation water tank, a water inlet is arranged at the lower part of the condensation water tank, a water outlet is arranged at the upper part of the condensation water tank, and the water inlet and the water outlet are arranged on the side of the condensation water tank.

[0006] Compared with the prior art, the beneficial effects of the utility model are:

[0007] 1. It has an independent distillation unit, which is easy to maintain and use, and has a higher cost performance.

[0008] 2. The distillation unit is more suitable for continuous ammonia evaporation of multiple solid-liquid mixed samples. There is no condenser in the distillation ball, which is easy to clean and not easy to be blocked. The distillation flask is a triangular flask with a low price.

[0009] 3. Install ventilation equipment to solve the problem of large amount of heat generated during the ammonia evaporation process and splashing that may scald people.

[0010] 4. The cooling water temperature is adjusted by electronic control instead of the normally open circulating cooling water to achieve reasonable cooling water utilization, so as to solve the problem of low water resource utilization in the prior art.

[0011] Furthermore, an exhaust hood and a fan are arranged on the upper side of the ventilation device, a lighting device is arranged inside the ventilation device, and a glass cabinet door is arranged on the front side of the ventilation device. The fan generates a strong negative pressure to exhaust the air to the outside through the exhaust hood. The glass cabinet door is closed to form a closed space for the ventilation device, so as to avoid a large amount of heat generated during the ammonia steaming process and splashing to scald the workers. The lighting device is turned on to achieve a clear view in the ventilation device during the ammonia steaming process.

[0012] Furthermore, the device for analyzing the total ammonia in a solid-liquid mixture is also provided with a temperature control system and a temperature control valve seat. The temperature control valve seat is installed on the ground, and the temperature control system is arranged above the temperature control valve seat. The input end of the temperature control system is connected to the water outlet of the condensate water tank, and the output end of the temperature control system is connected to the switch of the water inlet of the condensate water tank.

[0013] Furthermore, the temperature control system includes a temperature setting button, a temperature control unit, a temperature setting display, a temperature monitoring display and a temperature sensor probe, and the temperature sensor probe is arranged at the water outlet of the condensing water tank. The temperature of the cooling water in the condensing water tank is set by the temperature setting button, and the set value is displayed on the temperature setting display. The temperature sensor probe monitors the temperature of the cooling water near the water outlet of the condensing water tank in real time, and transmits the output signal to the temperature monitoring system. The temperature monitoring system displays the received temperature signal on the temperature monitoring display. When the temperature monitoring display temperature is higher than the temperature setting display, the temperature control unit opens the water inlet of the condensing water tank, the cooling water automatically enters the condensing water tank, and the upper cooling water overflows from the water outlet. The temperature sensor probe monitors the temperature of the cooling water near the water outlet of the condensing water tank in real time, and transmits the output signal to the temperature control system. When the displayed temperature on the temperature monitoring display is lower than the temperature setting display, the temperature control unit closes the water inlet of the condensing water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the overall structure of the embodiment of the utility model;

[0015] Figure 2 This is a cross-sectional view of a condensation water tank according to an embodiment of the utility model;

[0016] The markings in the figure are: 1. Ventilation device; 2. Condensate tank; 3. Distillation unit; 4. Temperature control system; 5. Temperature control valve seat; 6. Exhaust hood; 7. Fan; 8. Lighting device; 9. Glass cabinet door; 10. Water inlet; 11. Water outlet; 12. Condenser; 13. Distillation subunit; 14. Heating equipment; 15. Distillation ball; 16. Gas inlet; 17. Liquid outlet; 18. Inlet connecting pipe; 19. Outlet connecting pipe; 20. Distillation flask; 21. Sample absorption bottle; 22. Temperature setting button; 23. Temperature control unit; 24. Temperature setting display; 25. Temperature monitoring display; 26. Temperature sensor probe. DETAILED DESCRIPTION

[0017] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific implementation methods, but the present invention is not limited thereto.

[0018] See also Figure 1 and Figure 2 The utility model provides a device for analyzing the total ammonia of a solid-liquid mixture, comprising a ventilation device 1, a condensation water tank 2, a plurality of distillation units 3, a temperature control system 4 and a temperature control valve seat 5. The distillation units 3 are independent of each other and are installed in the ventilation device 1. The distillation unit 3 comprises a distillation subunit 13 and a heating device 14. The heating device 14 is an electric ceramic furnace, which is cheap. The distillation subunit 13 comprises a distillation flask 20 arranged on the heating device 14. The distillation flask 20 is a triangular flask, which can realize continuous boiling and has low cost. A silicone plug is installed at the bottle mouth of the distillation flask 20. The distillation flask 20 is connected to a distillation ball 15. The distillation ball 15 is hollow inside and is not provided with a condenser tube. It is easy to clean and not easy to be blocked. The distillation ball 15 is connected to an inlet connecting pipe 18, the inlet connecting pipe 18 is connected to a gas inlet 16, the gas inlet 16 is connected to a condenser 12, the condenser 12 is connected to a liquid outlet 17, the liquid outlet 17 is connected to an outlet connecting pipe 19, and the outlet connecting pipe 19 is connected to a sample absorption bottle 21; the condenser 12 is arranged in a condensation water tank 2, a water inlet 10 is arranged at the lower part of the condensation water tank 2, a water outlet 11 is arranged at the upper part of the condensation water tank 2, the water outlet 11 discharges cooling water to the outside of the condensation water tank 2, and when the water level drops, cooling water automatically enters from the water inlet 10 to fill the condensation water tank 2, thereby ensuring that there is sufficient cooling water in the condensation water tank 2, and the water inlet 10 and the water outlet 11 are arranged on the side of the condensation water tank 2.

[0019] The sample is heated and boiled by the heating device 14, and TNH3 overflows from the solution in the state of NH3 gas through the distillation ball 15 into the gas inlet 16, and the gas enters the condenser 12. The condenser 12 is inside the condensation water tank 2, and the condensation water tank 2 is filled with cooling water. The gas is cooled and liquefied in the condenser 12, and TNH3 enters the sample absorption bottle 21 in the state of ammonia water through the liquid outlet 17, and then the total ammonia content is analyzed.

[0020] An exhaust hood 6 and a fan 7 are arranged on the upper side of the ventilation device 1. The fan 7 generates a strong negative pressure to discharge the gas to the outside through the exhaust hood 6. A lighting device 8 is arranged inside the ventilation device 1 to ensure a clear view inside the ventilation device 1 during the ammonia steaming process. A glass cabinet door 9 is arranged on the front side of the ventilation device 1. When closed, the ventilation device 1 forms a closed space to avoid a large amount of heat and splashing generated during the ammonia steaming process to scald the staff.

[0021] The temperature control valve seat 5 is installed on the ground, and the temperature control system 4 is arranged above the temperature control valve seat 5. The temperature control system 4 includes a temperature setting button 22, a temperature control unit 23, a temperature setting display 24, a temperature monitoring display 25 and a temperature sensing probe 26. The temperature sensing probe 26 is arranged at the water outlet 11 of the condensing water tank 2. The input end of the temperature control system 4 is connected to the water outlet 11 of the condensing water tank 2, and the output end of the temperature control system 4 is connected to the switch of the water inlet 10 of the condensing water tank 2. The cooling water temperature in the condensing water tank 2 is set by the temperature setting button 22, and the set value is displayed on the temperature setting display 24. The temperature sensing probe 26 monitors the cooling water temperature near the water outlet 11 in the condensing water tank 2 in real time, and transmits the output signal to the temperature control system 4. The temperature control system 4 displays the received temperature signal on the temperature monitoring display 25. When the temperature displayed on the temperature monitoring display 25 is higher than the temperature setting display 24, the temperature control unit 23 opens the water inlet 10 of the condensing water tank 2, the cooling water automatically enters the condensing water tank 2, and the upper cooling water overflows from the water outlet 11. The temperature sensor probe 26 monitors the cooling water temperature near the water outlet 11 in the condensing water tank 2 in real time and transmits the output signal to the temperature control system 4. When the displayed temperature on the temperature monitoring display 25 is lower than the temperature setting display 24, the temperature control unit 23 closes the water inlet 10 of the condensing water tank 2.

[0022] Finally, it should be noted that the above-listed examples are only preferred embodiments of the present invention. Of course, those skilled in the art can make changes and modifications to the present invention. If these modifications and modifications fall within the scope of the claims of the present invention and their equivalent technologies, they should be considered to be within the scope of protection of the present invention.

Claims

1. A device for analyzing total ammonia in a solid-liquid mixture, comprising a ventilation device (1), a condensation water tank (2) and a plurality of distillation units (3), characterized in that: The distillation units (3) are independent of each other. The distillation units (3) are installed in the ventilation device (1). The distillation unit (3) comprises a distillation subunit (13) and a heating device (14). The distillation subunit (13) comprises a distillation flask (20) arranged on the heating device (14). The distillation flask (20) is connected to a distillation ball (15). The distillation ball (15) is connected to an inlet connecting pipe (18). The inlet connecting pipe (18) is connected to a gas inlet (16). The gas inlet (16) is connected to a condenser (12). The condenser (12) is connected to a liquid outlet (17). The liquid outlet (17) is connected to an outlet connecting pipe (19). The outlet connecting pipe (19) is connected to a sample absorption bottle (21). The condenser (12) is arranged in a condensation water tank (2). A water inlet (10) is arranged at the lower part of the condensation water tank (2). A water outlet (11) is arranged at the upper part of the condensation water tank (2).

2. The device for analyzing total ammonia in a solid-liquid mixture according to claim 1, characterized in that: An exhaust hood (6) and a fan (7) are arranged on the upper side of the ventilation device (1), a lighting device (8) is arranged inside the ventilation device (1), and a glass cabinet door (9) is arranged on the front side of the ventilation device (1).

3. The device for analyzing total ammonia in solid-liquid mixture according to claim 1, characterized in that: The device for analyzing the total ammonia in a solid-liquid mixture is further provided with a temperature control system (4) and a temperature control valve seat (5); the temperature control valve seat (5) is installed on the ground; the temperature control system (4) is arranged above the temperature control valve seat (5); the input end of the temperature control system (4) is connected to the water outlet (11) of the condensate water tank (2); and the output end of the temperature control system (4) is connected to the switch of the water inlet (10) of the condensate water tank (2).

4. The device for analyzing total ammonia in a solid-liquid mixture according to claim 3, characterized in that: The temperature control system (4) comprises a temperature setting button (22), a temperature control unit (23), a temperature setting display (24), a temperature monitoring display (25) and a temperature sensing probe (26); the temperature sensing probe (26) is arranged at the water outlet (11) of the condensation water tank (2).

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