Pretreatment device for tobacco pesticide detection

Abstract

The utility model discloses a pretreatment device for tobacco pesticide detection, and relates to the technical field of tobacco pesticide pretreatment, the pretreatment device comprises a cooling pipe, the cooling pipe is of a double-interlayer structure, and an interlayer close to the inner portion of the cooling pipe is movably connected with a cooling water inlet pipe. The cooling pipe is of a double-interlayer structure, the inner interlayer of the cooling pipe is movably connected with the cooling water inlet pipe, the outer interlayer of the cooling pipe is fixedly provided with the distillation pipe, and particularly, one end of the cooling water inlet pipe is communicated with the cooling inlet, and the other end of the cooling water inlet pipe is communicated with the cooling outlet. The cooling inlet and the cooling water return pipe are both communicated with the water supply container, the cooling outlet penetrates through the through groove to be communicated with the outer interlayer, the two interlayers are communicated through the through groove, and one side of the cooling pipe is communicated with the cooling water return pipe. The direct cooling time of cooling water in the distillation pipe and the cooling water inlet pipe can be prolonged or shortened, and the maleic hydrazide distillation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of tobacco pesticide pretreatment technology, specifically a pretreatment device for tobacco pesticide detection. Background Technology

[0002] In tobacco agricultural production, recommended and widely used pesticides include maleic hydrazine (a white crystalline powder, soluble in hot water and slightly soluble in hot ethanol, mainly used as a selective herbicide and temporary plant growth inhibitor). Maleic hydrazine is often easily over-prepared, leading to excessive residues on tobacco plants and affecting the quality and safety of tobacco. Therefore, existing technologies for maleic hydrazine involve re-purification through distillation before preparation to appropriately remove or reduce the concentration of the original formulation, thereby reducing the residual amount of maleic hydrazine in tobacco.

[0003] However, the flow of cold water outside the distillation tube during the distillation and purification of maleic hydrazine cannot be regulated, resulting in low distillation and purification efficiency of maleic hydrazine, which has room for improvement. Utility Model Content

[0004] The purpose of this invention is to provide a pretreatment device for detecting pesticides in tobacco, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pretreatment device for tobacco pesticide detection, comprising a cooling pipe, wherein the cooling pipe has a double-layer structure, wherein the inner layer is movably connected to a cooling water inlet pipe, and the outer layer is fixedly installed with a distillation pipe, the two layers are connected by a through groove, and one side of the cooling pipe is connected to a return cooling water pipe.

[0006] As a further embodiment of this utility model: a pretreatment device for tobacco pesticide detection, wherein one end of the cooling water inlet pipe is connected to a cooling inlet, the other end of the cooling water inlet pipe is connected to a cooling outlet, the cooling inlet and the return cooling water pipe are both connected to a water supply container, and the cooling outlet passes through a through groove and is connected to an outer interlayer.

[0007] As a further embodiment of this utility model: a pretreatment device for detecting pesticides in tobacco, further comprising a support, wherein the cooling pipe is hinged to the support via a hinge.

[0008] As a further embodiment of this utility model: a pretreatment device for detecting pesticides in tobacco, further comprising an outer water seal and an inner water seal, wherein the inner water seal is fixedly connected to a cooling pipe, the outer water seal is fixedly connected to the inner water seal, and the cooling inlet is movably connected to the outer water seal.

[0009] As a further embodiment of this utility model: a pretreatment device for tobacco pesticide detection, wherein a sealing plate is movably connected to the end of the cooling pipe away from the return cooling water pipe, and a pipe water seal is provided inside the sealing plate for sealing water leakage from the outer interlayer.

[0010] As a further embodiment of this utility model: a pretreatment device for detecting pesticides in tobacco, wherein one end of the distillation tube is connected to a distillation inlet and the other end is connected to a distillation outlet, the distillation inlet is adapted to a water seal and one end of it is connected to a pre-distillation container, and the distillation outlet passes through a return cooling water pipe and one end of it is connected to a post-distillation container.

[0011] As a further embodiment of this utility model: a pretreatment device for detecting pesticides in tobacco, wherein the cooling pipe, distillation pipe and cooling water inlet pipe are all made of transparent tempered glass.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Because the cooling pipe has a double-layer structure, the inner layer is movably connected to the cooling water inlet pipe, and the outer layer is fixedly installed with the distillation pipe. Specifically, one end of the cooling water inlet pipe is connected to the cooling inlet, and the other end is connected to the cooling outlet. The cooling inlet and the return cooling water pipe are both connected to the water supply container. The cooling outlet passes through the through groove and connects to the outer layer. The two layers are connected through the through groove. One side of the cooling pipe is connected to the return cooling water pipe. Therefore, by adjusting the position of the cooling water inlet pipe inside the through groove, the direct cooling time between the distillation pipe and the cooling water in the cooling water inlet pipe can be increased or decreased, thereby accelerating the distillation efficiency of maleic hydrazine.

[0014] 2. Since the cooling pipe is hinged to the support, the flow rate of the material can be adjusted, thereby further regulating the distillation efficiency of maleic hydrazine. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a pretreatment device for detecting pesticides in tobacco according to this utility model;

[0016] Figure 2 This is a split diagram of the overall structure of a pretreatment device for detecting pesticides in tobacco according to this utility model;

[0017] Figure 3 This is one of the cross-sectional views of the overall equipment in the tobacco pesticide detection pretreatment device of this utility model;

[0018] Figure 4 This is a second cross-sectional view of the overall equipment in the pretreatment device for tobacco pesticide detection according to this utility model;

[0019] In the diagram: 1. Support; 2. Cooling pipe; 3. Distillation pipe; 31. Distillation inlet; 32. Distillation outlet; 4. Cooling water inlet pipe; 41. Cooling inlet; 42. Cooling outlet; 5. External water seal; 6. Internal water seal; 7. Sealing plate; 8. Pipe water seal; 9. Cooling water return pipe; 10. Through groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0022] Please see Figures 1-4 In this embodiment of the present invention, a pretreatment device for detecting pesticides in tobacco includes a cooling pipe 2. The cooling pipe 2 has a double-layer structure. The inner layer is movably connected to a cooling water inlet pipe 4, and the outer layer is fixedly installed with a distillation pipe 3. The two layers are connected by a through groove 10. A return cooling water pipe 9 is connected to one side of the cooling pipe 2.

[0023] As a further embodiment of this utility model: a pretreatment device for tobacco pesticide detection, wherein one end of the cooling water inlet pipe 4 is connected to a cooling inlet 41, the other end of the cooling water inlet pipe 4 is connected to a cooling outlet 42, the cooling inlet 41 and the return cooling water pipe 9 are both connected to a water supply container, and the cooling outlet 42 passes through the through groove 10 and is connected to the outermost interlayer.

[0024] Because the cooling pipe 2 has a double-layer structure, the inner layer is movably connected to the cooling water inlet pipe 4, and the outer layer is fixedly installed with the distillation pipe 3. Specifically, one end of the cooling water inlet pipe 4 is connected to the cooling inlet 41, and the other end of the cooling water inlet pipe 4 is connected to the cooling outlet 42. The cooling inlet 41 and the return cooling water pipe 9 are both connected to the water supply container. The cooling outlet 42 passes through the through groove 10 and is connected to the outer layer. The two layers are connected through the through groove 10. One side of the cooling pipe 2 is connected to the return cooling water pipe 9. Therefore, by adjusting the position of the cooling water inlet pipe 4 inside the through groove 10, the direct cooling time between the distillation pipe 3 and the cooling water in the cooling water inlet pipe 4 can be increased or decreased, thereby accelerating the distillation efficiency of maleic hydrazine.

[0025] As a further embodiment of this utility model: a pretreatment device for detecting pesticides in tobacco, further comprising a support 1, wherein the cooling pipe 2 is hinged to the support 1 via a hinge.

[0026] Since the cooling pipe 2 is hinged to the support 1, the flow rate of materials in 3, 4 and 9 can be adjusted, thereby further adjusting the distillation efficiency of maleic hydrazine.

[0027] As a further embodiment of this utility model: a pretreatment device for detecting pesticides in tobacco, further comprising an outer water seal 5 and an inner water seal 6, wherein the inner water seal 6 is fixedly connected to the cooling pipe 2, the outer water seal 5 is fixedly connected to the inner water seal 6, and the cooling inlet 41 is movably connected to the outer water seal 5.

[0028] As a further embodiment of this utility model: a pretreatment device for tobacco pesticide detection, wherein a sealing plate 7 is movably connected to the end of the cooling pipe 2 away from the return cooling water pipe 9, and a pipe water seal 8 is provided inside the sealing plate 7 for sealing water leakage from the outer interlayer.

[0029] As a further embodiment of this utility model: a pretreatment device for detecting pesticides in tobacco, wherein one end of the distillation tube 3 is connected to a distillation inlet 31 and the other end is connected to a distillation outlet 32, the distillation inlet 31 is adapted to the tube water seal 8 and one end of it is connected to the pre-distillation container, and the distillation outlet 32 ​​passes through the return cooling water pipe 9 and one end of it is connected to the post-distillation container.

[0030] As a further embodiment of this utility model: a pretreatment device for detecting pesticides in tobacco, wherein the cooling pipe 2, the distillation pipe 3 and the cooling water inlet pipe 4 are all made of transparent tempered glass.

[0031] The working principle of this utility model is as follows: Since the cooling pipe 2 has a double-layer structure, the inner layer is movably connected to the cooling water inlet pipe 4, and the outer layer is fixedly installed with the distillation pipe 3. Specifically, one end of the cooling water inlet pipe 4 is connected to the cooling inlet 41, and the other end of the cooling water inlet pipe 4 is connected to the cooling outlet 42. The cooling inlet 41 and the return cooling water pipe 9 are both connected to the water supply container. The cooling outlet 42 passes through the through groove 10 and is connected to the outer layer. The two layers are connected through the through groove 10. One side of the cooling pipe 2 is connected to the return cooling water pipe 9. Therefore, by adjusting the position of the cooling water inlet pipe 4 inside the through groove 10, the direct cooling time between the distillation pipe 3 and the cooling water in the cooling water inlet pipe 4 can be increased or decreased, thereby accelerating the distillation efficiency of maleic hydrazine.

[0032] Since the cooling pipe 2 is hinged to the support 1, the flow rate of materials in 3, 4 and 9 can be adjusted, thereby further adjusting the distillation efficiency of maleic hydrazine.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pretreatment device for detecting pesticides in tobacco, characterized in that, It includes a cooling pipe (2), which has a double-layer structure. The inner layer is movably connected to a cooling water inlet pipe (4), and the outer layer is fixedly installed with a distillation pipe (3). The two layers are connected by a through groove (10), and a return cooling water pipe (9) is connected to one side of the cooling pipe (2).

2. The pretreatment device for tobacco pesticide detection according to claim 1, characterized in that, One end of the cooling water inlet pipe (4) is connected to a cooling inlet (41), and the other end of the cooling water inlet pipe (4) is connected to a cooling outlet (42). The cooling inlet (41) and the return cooling water pipe (9) are both connected to the water supply container. The cooling outlet (42) passes through the through groove (10) and is connected to the outer interlayer.

3. The pretreatment device for tobacco pesticide detection according to claim 2, characterized in that, It also includes a bracket (1), and the cooling pipe (2) is hinged to the bracket (1) by a hinge.

4. The pretreatment device for tobacco pesticide detection according to claim 3, characterized in that, It also includes an outer water seal (5) and an inner water seal (6), wherein the inner water seal (6) is fixedly connected to the cooling pipe (2), the outer water seal (5) is fixedly connected to the inner water seal (6), and the cooling inlet (41) is movably connected to the outer water seal (5).

5. The pretreatment device for tobacco pesticide detection according to claim 4, characterized in that, The end of the cooling pipe (2) away from the return cooling water pipe (9) is movably connected to a sealing plate (7), and the inside of the sealing plate (7) is provided with a pipe water seal (8) for sealing water leakage from the outer interlayer.

6. The pretreatment device for tobacco pesticide detection according to claim 5, characterized in that, One end of the distillation tube (3) is connected to a distillation inlet (31) and the other end is connected to a distillation outlet (32). The distillation inlet (31) is adapted to the water seal (8) and one end of it is connected to the pre-distillation container. The distillation outlet (32) passes through the return cooling water pipe (9) and one end of it is connected to the post-distillation container.

7. The pretreatment device for tobacco pesticide detection according to claim 6, characterized in that, The cooling pipe (2), distillation pipe (3) and cooling water inlet pipe (4) are all made of transparent tempered glass.

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