A liquid pesticide boiling range testing device

Abstract

The application relates to a liquid pesticide boiling range testing device and relates to the field of liquid pesticide boiling range testing equipment. The device comprises a distillation part, a screw cover, a compressed tank body and a condenser body, the distillation part comprises a distillation cylinder, the top end of the distillation cylinder is provided with an opening, the opening of the distillation cylinder is threadedly assembled with the screw cover, the gas outlet end of the compressed tank body is communicated with a pressurizing pipe, the pressurizing pipe at the gas outlet end of the compressed tank body is fixedly communicated with the middle part of the screw cover, the middle part of the screw cover is fixedly penetrated with an air ring, the bottom surface of the air ring is provided with an opening, the air ring is fixedly communicated with an air inlet pipe, the other end of the air inlet pipe is fixedly communicated with the condenser body, the bottom end of the condenser body is fixedly communicated with a drainage pipe in a vertical mode, and the drainage end of the condenser body is assembled with a measuring cylinder. When the boiling point of the liquid pesticide is changed, the pressurizing pipe on the compressed tank body is started to guide compressed gas into the distillation cylinder, so that the boiling point of the liquid pesticide in the distillation cylinder is changed, the boiling point of the pesticide boiling range is adjusted, and the energy consumption of the pesticide boiling range testing is reduced.

Description

Technical Field

[0001] This application relates to the technical field of liquid pesticide boiling range testing equipment, and in particular to a liquid pesticide boiling range testing device. Background Technology

[0002] Boiling range testing of liquid pesticides is one of the important methods for evaluating their volatility and purity. Boiling range refers to the temperature range from the initial boiling point to the dry point under specific conditions, within which the liquid begins to evaporate and eventually evaporates completely. For pesticides, understanding their boiling range helps to ensure the quality and safety of the product, especially to prevent unnecessary volatilization loss or the generation of harmful vapors during storage and use.

[0003] The existing publication number CN222427167U, entitled "Structure of a Pesticide Distillation Kettle," specifically relates to the field of distillation kettles. It includes a distillation kettle body, and further includes: a water-cooled circulation device on one side of the distillation kettle body for extracting and liquefying steam; a pesticide stirring device inside the distillation kettle body for more comprehensive stirring; and a movable top cover at the upper end of the distillation kettle body, detachably connected to the upper end of the distillation kettle body by screws, with a vent hole on one side of the top cover, and a motor fixing block fixed to the upper end of the top cover, with a stirring motor fixed to the upper end of the motor fixing block. This utility model, by incorporating a water-cooled circulation device, facilitates the extraction of steam inside the distillation kettle, achieving liquefaction in the pipeline and preventing backflow of liquefied water. The pesticide stirring device facilitates comprehensive stirring of the bottom and middle parts of the pesticide, thereby more effectively dispersing the high temperature at the lower end.

[0004] Regarding the aforementioned technologies, the inventors discovered that the pesticide distillation kettle directly adds pesticides to the loading tank, lacking a pressurizing component. However, different pesticides have different boiling points, and pesticides with different boiling points require different temperatures. This results in different pesticides needing to be heated to different temperatures for boiling range testing, leading to an increase in testing heating power. It is impossible to adjust the distillation pressure according to the type of pesticide, thereby adjusting the boiling point of the pesticide boiling range and reducing the energy consumption of pesticide boiling range testing. Utility Model Content

[0005] To overcome the shortcomings of existing pesticide distillation kettles that directly add pesticides to the container without pressurizing components, and the fact that different pesticides have different boiling points and require different temperatures for boiling range testing, which increases the heating power required for testing and makes it impossible to adjust the distillation pressure according to the type of pesticide to adjust the boiling point and reduce the energy consumption of pesticide boiling range testing, this application provides a liquid pesticide boiling range testing device.

[0006] The liquid pesticide boiling range testing device provided in this application adopts the following technical solution: A liquid pesticide boiling range testing device includes a distillation element, a screw cap, a compression tank, and a condenser body. The distillation element includes a distillation cylinder with an opening at its top, and a screw cap is threaded onto the opening. A pressure pipe is fixedly connected to the outlet of the compression tank, and the pressure pipe at the outlet of the compression tank is fixedly connected to the middle of the screw cap. An air ring is fixedly connected through the middle of the screw cap, and the bottom surface of the air ring is open. An air inlet pipe is fixedly connected to the air ring, and the other end of the air inlet pipe is fixedly connected to the condenser body. A drain pipe is vertically connected to the bottom of the condenser body, and a measuring cylinder is assembled at the drain end of the condenser body.

[0007] By adopting the above technical solution, when conducting boiling range testing on liquid pesticides, the liquid pesticide to be tested is added to the distillation cylinder of the distillation unit. The screw cap is then threaded onto the opening of the distillation cylinder. The distillation cylinder is then heated to heat the liquid pesticide, causing it to evaporate. The evaporated liquid pesticide is then guided to the condenser body through the inlet pipe on the gas ring. The vapor generated by the evaporation is also guided into the condenser body. After condensation in the condenser body, the condensate is discharged into a measuring cylinder for storage. This process allows for boiling range testing of the liquid pesticide. Simultaneously, to facilitate changing the pressure in the distillation cylinder and thus the boiling point of the liquid pesticide, the pressure pipe on the compression tank is activated to introduce compressed gas into the distillation cylinder, thereby changing the boiling point of the liquid pesticide and adjusting the boiling range of the pesticide, thus reducing the energy consumption of the pesticide boiling range test.

[0008] Optionally, the interior of the distillation cylinder is provided with a heating chamber, and the heating chamber of the distillation cylinder is filled with heat-conducting oil.

[0009] By adopting the above technical solution, the heating chamber inside the distillation cylinder is filled with heat-conducting oil. The heat-conducting oil is used to store heat so that the heat is evenly contacted with the inner wall of the distillation cylinder, and the heat conduction is used to treat the liquid pesticide at the boiling point.

[0010] Optionally, multiple heating rods are uniformly and vertically fixed in the heating chamber of the distillation cylinder, and a screw ring is vertically connected and fixed at the opening of the distillation cylinder.

[0011] By adopting the above technical solution, multiple heating rods in the heating chamber of the distillation cylinder generate heat during use, and heat the heating chamber inside the distillation cylinder, which is filled with heat-conducting oil, for heating treatment.

[0012] Optionally, the nut and the cap are connected by a threaded assembly.

[0013] By adopting the above technical solution, the screw ring and screw cap are connected by a threaded assembly, sealing the screw cap and distillation cylinder, ensuring the airtightness of the liquid pesticide inside the distillation cylinder during boiling process.

[0014] Optionally, an air pipe is vertically connected and fixed to the air inlet end of the compression tank, and a compressed air pump is connected and fixed to the air pipe of the compression tank.

[0015] By adopting the above technical solution, a compressed air pump is connected and fixed to the air inlet pipe of the compressed tank during use. The compressed air pump drives external air into the compressed tank, and the compressed air is stored in the compressed tank. The compressed air is then used to guide the compressed air into the distillation cylinder later, which facilitates the subsequent increase of the boiling point of the liquid pesticide in the distillation cylinder.

[0016] Optionally, a pressure gauge is connected and fixed to the pressurization pipe.

[0017] By adopting the above technical solution, a pressure gauge is connected and fixed on the pressure pipe to detect the pressure change of the compressed air introduced into the distillation cylinder, and the pressure is adjusted in time to control the change of the boiling point of the liquid pesticide in the distillation cylinder.

[0018] Optionally, condensate pipes are horizontally connected and fixed on both the upper and lower sides of the outer wall of the condenser body, and the condensate pipes are connected and fixed to the external condensate delivery pipe.

[0019] By adopting the above technical solution, the upper and lower sides of the outer wall of the condenser body are horizontally connected and fixed with condensate pipes, which are connected and fixed with external condensate delivery pipes, so as to facilitate the circulation and flow of condensate and condensate treatment of the condensate pipes.

[0020] Optionally, a pipe is vertically connected and fixed to the drain end of the condenser body, and a screw cap is connected and fixed to the bottom end of the pipe. A screw is vertically connected and fixed to the top surface of the measuring cylinder, and the screw and the screw cap are connected by threaded assembly.

[0021] By adopting the above technical solution, the drain end of the intermediate condenser body is vertically connected to the screw cylinder on the connecting pipe and the screw cylinder cover threaded assembly, and the connected assembly measuring cylinder collects the condensate of liquid pesticides, which facilitates the later calculation of pesticide boiling range data.

[0022] In summary, this application includes at least one of the following beneficial technical effects: During the boiling range test of liquid pesticides, the liquid pesticide to be tested is added to the distillation cylinder of the distillation unit. Then, the screw cap is threaded onto the opening of the distillation cylinder. The distillation cylinder is then heated to heat the liquid pesticide, causing it to evaporate. The evaporated liquid pesticide is guided to the condenser body through the inlet pipe on the gas ring. The vapor generated by the evaporation is also guided into the condenser body. After the liquid pesticide vapor condenses in the condenser body, the condensate is discharged into a measuring cylinder for storage. Thus, the boiling range test of the liquid pesticide is performed. Simultaneously, to facilitate changing the pressure in the distillation cylinder and thus the boiling point of the liquid pesticide, the pressure pipe on the compression tank is activated to guide compressed gas into the distillation cylinder, thereby changing the boiling point of the liquid pesticide in the distillation cylinder and adjusting the boiling point of the pesticide's boiling range, reducing the energy consumption of the pesticide boiling range test. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of the embodiment of this application in an exploded state; Figure 3 This is a schematic diagram of the distillation unit in the decomposed state according to an embodiment of this application; Figure 4 This is a schematic diagram of the screw cap in an exploded state according to an embodiment of this application; Figure 5 This is a schematic diagram of the condenser in the decomposed state according to an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Distillation element; 11. Distillation cylinder; 12. Heating rod; 13. Screw ring; 2. Screw cap; 21. Gas ring; 3. Compression tank; 31. Compressed air pump; 32. Pressurization pipe; 33. Pressure gauge; 4. Condenser body; 41. Air inlet pipe; 42. Condensate pipe; 43. Connecting pipe; 44. Screw cap; 45. Measuring cylinder; 46. Screw. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] This application discloses a device for testing the boiling range of liquid pesticides. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4A liquid pesticide boiling range testing device includes a distillation element 1, a screw cap 2, a compression tank 3, and a condenser body 4. The distillation element 1 includes a distillation cylinder 11 with an opening at the top and a screw cap 2 threadedly assembled at the opening. A pressure pipe 32 is fixedly connected to the outlet end of the compression tank 3, and the pressure pipe 32 at the outlet end of the compression tank 3 is fixedly connected to the middle of the screw cap 2. A gas ring 21 is fixedly connected through the middle of the screw cap 2, and the bottom surface of the gas ring 21 is open. An air inlet pipe 41 is fixedly connected to the gas ring 21, and the other end of the air inlet pipe 41 is fixedly connected to the condenser body 4. A drain pipe is vertically fixedly connected to the bottom end of the condenser body 4, and a measuring cylinder 45 is assembled at the drain end of the condenser body 4.

[0027] By adopting the above technical solution, when conducting boiling range testing on liquid pesticides, the liquid pesticide to be tested is added to the distillation cylinder 11 of the distillation unit 1. Then, the screw cap 2 is threaded onto the opening of the distillation cylinder 11. The distillation cylinder 11 is then heated to heat the liquid pesticide in it, causing the liquid pesticide to evaporate. The evaporated liquid pesticide is then guided to the condenser body 4 through the air inlet pipe 41 on the gas ring 21. The vapor generated by the evaporation of the liquid pesticide is also guided into the condenser body 4. After the liquid pesticide vapor is condensed in the condenser body 4, the liquid pesticide condensate is discharged into the measuring cylinder 45 for storage. Thus, the boiling range of the liquid pesticide is tested. At the same time, in order to facilitate changing the pressure in the distillation cylinder 11 and thus the boiling point of the liquid pesticide, the pressurization pipe 32 on the compression tank 3 is activated to guide compressed gas into the distillation cylinder 11, thereby changing the boiling point of the liquid pesticide in the distillation cylinder 11 and adjusting the boiling point of the pesticide boiling range, thus reducing the energy consumption of the pesticide boiling range test.

[0028] Reference Figure 3 The distillation cylinder 11 has an internal heating chamber filled with heat-conducting oil. During use, the heat-conducting oil stores heat, ensuring uniform contact between the oil and the inner wall of the distillation cylinder 11, thus controlling the boiling point of the liquid pesticide. Multiple heating rods 12 are vertically and evenly fixed within the heating chamber of the distillation cylinder 11, and a screw ring 13 is vertically connected and fixed to the opening of the distillation cylinder 11. During use, the heating rods 12 in the heating chamber of the distillation cylinder 11 are activated to heat the heat-conducting oil within the heating chamber.

[0029] Reference Figure 3 and Figure 4 The screw ring 13 is threadedly connected to the screw cap 2. The screw ring 13 and the screw cap 2 are threadedly connected to seal the screw cap 2 and the distillation cylinder 11, ensuring the airtightness of the liquid pesticide inside the distillation cylinder 11 when it is subjected to boiling range treatment.

[0030] Reference Figure 4A vertical air pipe is fixedly connected to the air inlet end of the compression tank 3, and a compressed air pump 31 is fixedly connected to the air pipe of the compression tank 3. During use, the compressed air pump 31 drives external air into the compression tank 3, where it is stored. This compressed air is then used to guide the compressed air into the distillation cylinder 11, facilitating the raising of the boiling point of the liquid pesticide in the distillation cylinder 11. A pressure gauge 33 is fixedly connected to the pressure pipe 32. The pressure gauge 33 detects changes in the pressure of the compressed air entering the distillation cylinder 11 and adjusts the pressure accordingly to control the boiling point of the liquid pesticide in the distillation cylinder 11.

[0031] Reference Figure 4 and Figure 5 The condenser body 4 has horizontally connected and fixed condensate pipes 42 on both the upper and lower sides of its outer wall, and these condensate pipes 42 are connected and fixed to an external condensate delivery pipe. This connection facilitates the circulation and flow of condensate, allowing for condensation treatment of the condensate pipes 42. A vertically connected pipe 43 is fixed to the drain end of the condenser body 4, and a screw cap 44 is fixed to the bottom end of the pipe 43. A screw cylinder 46 is vertically connected and fixed to the top surface of the measuring cylinder 45, and the screw cylinder 46 and screw cap 44 are threadedly connected. During use, the screw cylinder 46 and screw cap 44 on the vertically connected pipe 43 at the drain end of the condenser body 4 are threadedly connected, connecting to the measuring cylinder 45 to collect the condensate from the liquid pesticide, facilitating later calculations of pesticide boiling range data.

[0032] The implementation principle of the liquid pesticide boiling range testing device in this application embodiment is as follows: During boiling range testing of liquid pesticides, the liquid pesticide to be tested is added to the distillation cylinder 11 of the distillation element 1. Then, the screw cap 2 is threaded onto the opening of the distillation cylinder 11. Multiple heating rods 12 in the heating chamber of the distillation cylinder 11 are activated to heat the heat-conducting oil filling the heating chamber inside the distillation cylinder 11. The heated liquid pesticide then evaporates. The evaporated liquid pesticide is guided to the condenser body 4 through the air inlet pipe 41 on the gas ring 21. The vapor generated by the evaporation of the liquid pesticide is also guided into the condenser body 4. In the process, after the liquid pesticide vapor is condensed in the condenser body 4, the liquid pesticide condensate is discharged into the measuring cylinder 45 for storage, thereby allowing the liquid pesticide to undergo boiling range testing. At the same time, in order to facilitate changing the pressure in the distillation cylinder 11 during the boiling range testing of the liquid pesticide, a compressed air pump 31 is connected and fixed to the air inlet pipe of the compression tank 3. The compressed air pump 31 drives external air into the compression tank 3, and the compressed air is stored in the compression tank 3. The compressed air is used to guide into the distillation cylinder 11 later, which facilitates the subsequent increase of the boiling point of the liquid pesticide in the distillation cylinder 11. When changing the boiling point of the liquid pesticide, the pressurization pipe 32 on the compression tank 3 is activated to guide compressed gas into the distillation cylinder 11, thereby changing the boiling point of the liquid pesticide in the distillation cylinder 11.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A liquid pesticide boiling range testing device, characterized in that, The device includes a distillation unit (1), a screw cap (2), a compression tank (3), and a condenser body (4). The distillation unit (1) includes a distillation cylinder (11), which has an opening at the top and the screw cap (2) is threaded onto the opening. The outlet of the compression tank (3) is connected to a pressurizing pipe (32), which is also connected to the middle of the screw cap (2). A gas ring (21) is fixed through the middle of the screw cap (2), and the bottom surface of the gas ring (21) is open. An inlet pipe (41) is fixed onto the gas ring (21), and the other end of the inlet pipe (41) is fixed onto the condenser body (4). A drain pipe is vertically connected to the bottom of the condenser body (4), and a measuring cylinder (45) is assembled at the drain end of the condenser body (4).

2. The liquid pesticide boiling range testing device according to claim 1, characterized in that: The distillation cylinder (11) has a heating chamber inside, and the heating chamber of the distillation cylinder (11) is filled with heat-conducting oil.

3. The liquid pesticide boiling range testing device according to claim 2, characterized in that: Multiple heating rods (12) are uniformly and vertically fixed in the heating chamber of the distillation cylinder (11), and a screw ring (13) is vertically connected and fixed at the opening of the distillation cylinder (11).

4. The liquid pesticide boiling range testing device according to claim 3, characterized in that: The screw ring (13) is threadedly connected to the screw cap (2).

5. The liquid pesticide boiling range testing device according to claim 1, characterized in that: The air inlet of the compression tank (3) is vertically connected to and fixed with an air pipe, and a compression pump (31) is connected to and fixed on the air pipe of the compression tank (3).

6. The liquid pesticide boiling range testing device according to claim 1, characterized in that: A pressure gauge (33) is fixedly connected to the pressure tube (32).

7. The liquid pesticide boiling range testing device according to claim 1, characterized in that: The condenser body (4) has condensate pipes (42) horizontally connected and fixed on both the upper and lower sides of its outer wall, and the condensate pipes (42) are connected and fixed to the external condensate delivery pipe.

8. The liquid pesticide boiling range testing device according to claim 7, characterized in that: The drain end of the condenser body (4) is vertically connected to and fixed with a pipe (43), and the bottom end of the pipe (43) is connected to and fixed with a screw cap (44). The top surface of the measuring cylinder (45) is vertically connected to and fixed with a screw (46), and the screw (46) and the screw cap (44) are connected by a threaded assembly.

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