A glufosinate-ammonium reactor sampling device

Abstract

The application discloses a kind of glufosinate-ammonium reaction kettle sampling equipment, including sampling tube group, sampling tube group is inserted and is connected tank, sampling tube group is sequentially arranged sampling tube one, sampling tube two and sampling tube three from inside to outside, and lower sealing plate and upper sealing plate are respectively fixedly connected in the opening end of sampling tube group, multiple groups of inlet valve assemblies and multiple groups of outlet valve assemblies are respectively installed on lower sealing plate, multiple groups of negative pressure pipes and multiple groups of pressurizing pipes are respectively installed on upper sealing plate, when sampling, corresponding sampling tube is convenient for negative pressure to open inlet valve assembly and extract material liquid, and excess residual material liquid is returned to tank by outlet valve assembly, sampling operation is convenient, so that the material liquid of each step synthesis is separated and sampled individually, to avoid the reaction of different sampling material liquid in the same sampling tube, interfere with the accuracy of sampling data, to ensure the authenticity of sampling data.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glufosinate-ammonium production sampling, in particular to a sampling equipment for glufosinate-ammonium reaction kettle. BACKGROUND

[0002] Glufosinate-ammonium is an organic phosphorus herbicide with certain systemic action, which can be used for orchards, vineyards, uncultivated land weed control, and also can be used for potato land to prevent annual or perennial dicotyledonous and gramineous weeds and sedge weeds.

[0003] In the production process of glufosinate-ammonium synthesized by reaction kettle, methyl phosphite diethyl ester and acrolein are reacted to preliminarily synthesize phosphine acetal at 20℃ for 3h; then the intermediate phosphine acetal is reacted with hydrochloric acid to synthesize phosphine aldehyde at 40℃ for 3h; the phosphine aldehyde, sodium cyanide and ammonium chloride are reacted in ammonia water to synthesize phosphine cyanide at 45℃ for 3h; the phosphine cyanide is hydrolyzed with concentrated hydrochloric acid, and refluxed with ethanol to obtain a mother liquor, and the mother liquor is distilled and crystallized at normal pressure to obtain glufosinate-ammonium hydrochloride; sampling analysis is needed in the synthesis of phosphine acetal, phosphine aldehyde and phosphine cyanide, and the chromatographic pure GC data and yield data in each synthesis step are obtained to provide sampling data support for improving the process reaction.

[0004] In the prior art, the sampling of glufosinate-ammonium reaction kettle is usually carried out by a single sampling tube, in the production process of glufosinate-ammonium synthesized by reaction kettle, sampling can be carried out at regular time from the sampling tube for detection, so that the detection results of the chromatographic pure GC data and yield data can be compared with the detection physical and chemical indexes set on the reaction kettle, and the raw material components and process parameters of the synthesis reaction can be adjusted in time; however, when each step of synthesis in the reaction kettle is carried out, the following defects exist in the operation of a single sampling tube: the mixed liquid of the previous step is left on the wall of the sampling tube, and when the mixed liquid of the next step is sampled, the mixed liquid of the previous step is easily reacted with the mixed liquid of the next step, which affects the authenticity of the sampling data and the sampling accuracy is poor. SUMMARY

[0005] The purpose of the present application is to provide a sampling equipment for glufosinate-ammonium reaction kettle, which can solve the interference defect problem in sampling of each synthesis step in the reaction kettle.

[0006] The purpose of the present application can be achieved by the following technical solutions:

[0007] A sampling equipment for glufosinate-ammonium reaction kettle, comprising:

[0008] A sampling tube group is inserted and connected to the kettle, the sampling tube group is sequentially provided with a sampling tube one, a sampling tube two and a sampling tube three from inside to outside, a gap is provided between the sampling tube one and the sampling tube two, and a gap is provided between the sampling tube two and the sampling tube three;

[0009] Lower sealing plate and upper sealing plate, respectively fixedly connected to the opening end of the sampling tube group;

[0010] Multiple sets of inlet valve assemblies and multiple sets of outlet valve assemblies are installed on the lower sealing plate, the inner cavity of the sampling tube one is connected with a set of inlet valve assembly and outlet valve assembly, the gap cavity between the sampling tube one and the sampling tube two is connected with a set of inlet valve assembly and outlet valve assembly, and the gap cavity between the sampling tube two and the sampling tube three is connected with a set of inlet valve assembly and outlet valve assembly.

[0011] Multiple sets of negative pressure tubes and multiple sets of pressurizing tubes are installed on the upper sealing plate, the inner cavity of the sampling tube one is connected with a set of negative pressure tube and pressurizing tube, the gap cavity between the sampling tube one and the sampling tube two is connected with a set of negative pressure tube and pressurizing tube, and the gap cavity between the sampling tube two and the sampling tube three is connected with a set of negative pressure tube and pressurizing tube.

[0012] Overflow tube group is obliquely connected to the top end of the sampling tube group, the overflow tube group is sequentially provided with overflow tube one, overflow tube two and overflow tube three from inside to outside, one end of the overflow tube one is insertedly connected with the sampling tube one, one end of the overflow tube two is insertedly connected with the sampling tube two, and one end of the overflow tube three is insertedly connected with the sampling tube three.

[0013] Three sets of liquid down pipes, the top end of one set of the liquid down pipes is insertedly connected with the overflow tube one, the top end of one set of the liquid down pipes is insertedly connected with the overflow tube two, and the top end of one set of the liquid down pipes is insertedly connected with the overflow tube three.

[0014] Test tube is arranged at the bottom end of the three sets of liquid down pipes.

[0015] As a further scheme of the present application, the inlet valve assembly comprises upper protruding block, communication tube one and spring one, the lower sealing plate is sequentially provided with upper sealing groove, mounting groove one and insertion hole one from the upper plate surface to the lower plate surface, the upper protruding block is insertedly connected in the upper sealing groove, the bottom end of the communication tube one is insertedly connected in the insertion hole one, and the top end is fixedly connected with the upper protruding block, the spring one is arranged in the mounting groove one, the spring one is connected with the upper protruding block, and a plurality of upper overflow holes are arranged on the side wall of the upper protruding block.

[0016] As a further scheme of the present application, the outlet valve assembly comprises communication tube two, lower protruding block and spring two, the lower sealing plate is sequentially provided with insertion hole two, mounting groove two and lower sealing groove from the upper plate surface to the lower plate surface, the top end of the communication tube two is insertedly connected in the insertion hole two, and the bottom end is fixedly connected with the lower protruding block, the lower protruding block is insertedly connected in the lower sealing groove, the spring two is arranged in the mounting groove two, the spring two is connected with the lower protruding block, and a plurality of lower overflow holes are arranged on the side wall of the lower protruding block.

[0017] As a further scheme of the present application: the overflow pipe is connected to the flared part of the converging interface, and the converging part of the converging interface is connected to the reflux hole of the kettle through a reflux pipe.

[0018] As a further scheme of the present application: a side plate is arranged on the side wall of the kettle, and a lifting groove is arranged on the side plate.

[0019] As a further scheme of the present application: a bracket is fixedly arranged on the side plate, and a test tube is arranged in the groove of the bracket.

[0020] As a further scheme of the present application: a gate valve is arranged on the lower liquid pipe.

[0021] The present application has the following advantages:

[0022] (1) The sampling pipe group is sequentially arranged with sampling pipe one, sampling pipe two and sampling pipe three from inside to outside, and the open end of the sampling pipe group is fixedly connected with lower sealing plate and upper sealing plate, respectively. A plurality of inlet valve assemblies and a plurality of outlet valve assemblies are arranged on the lower sealing plate, and a plurality of negative pressure pipes and a plurality of pressurizing pipes are arranged on the upper sealing plate. When sampling, the corresponding sampling pipe is convenient for opening the inlet valve assembly by negative pressure to extract the material liquid, and the excess residual material liquid is returned to the kettle through the outlet valve assembly. The sampling operation is convenient, so that the material liquid of each step of synthesis is separately sampled, to avoid the reaction of different sampling material liquids in the same sampling pipe and to interfere with the accuracy of the sampling data, so as to ensure the authenticity of the sampling data.

[0023] (2) When the sampling pipe group is inserted into the material liquid in the kettle, the inlet valve assembly and the outlet valve assembly are in a closed state. During the sampling process, the corresponding sampling pipe is negatively pumped by the negative pressure pipe. The inlet valve assembly is stretched out of the upper sealing groove by the suction force. At this time, the outlet valve assembly is still in a closed state. The sampling material liquid enters the upper protruding block through the communication pipe one, and enters the corresponding sampling pipe through the upper overflow hole, and is then pumped into the overflow pipe group, so as to facilitate the discharge sampling operation.

[0024] (3) After sampling is completed, the residual material liquid in the corresponding sampling pipe stops negative pumping of the sampling pipe. The material liquid presses the upper protruding block, and the upper protruding block is contracted to the upper sealing groove under the tight pulling action of the spring one. At this time, the inlet valve assembly is in a closed state, and the suction of the material liquid is stopped. The corresponding sampling pipe is pressurized by the pressurizing pipe. The lower protruding block is stretched out of the lower sealing groove. The residual material liquid is convenient for entering the lower protruding block through the communication pipe two, and is convenient for returning to the kettle from the lower overflow hole, to avoid causing the loss and waste of the material liquid, and to avoid affecting the next sampling operation.

[0025] (4) The overflow pipe three is connected with the flared part of the converging interface, and the converging part of the converging interface is connected with the reflux hole of the kettle through the reflux pipe. In order to reduce the waste of the sampling liquid, the liquid falling from the overflow pipe group is converged into the converging interface and then transported into the kettle through the reflux pipe, so that the waste of the sampling liquid is greatly reduced, thereby reducing the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0026] The application will be further described below with reference to the drawings.

[0027] Figure 1 is a structural schematic diagram of the application;

[0028] Figure 2 is a sectional schematic diagram of the application;

[0029] Figure 3 is a sectional connection schematic diagram of the sampling pipe group of the application;

[0030] Figure 4 is a schematic diagram of the upper and lower sealing of the first sampling pipe of the application;

[0031] Figure 5 is a schematic diagram of the upper and lower sealing of the second sampling pipe of the application;

[0032] Figure 6 is a schematic diagram of the upper and lower sealing of the third sampling pipe of the application;

[0033] Figure 7 is a schematic diagram of the inlet valve assembly and the outlet valve assembly arranged on the lower sealing plate of the application;

[0034] Figure 8 is a schematic diagram of the negative pressure pipe and the pressurizing pipe arranged on the upper sealing plate of the application;

[0035] Figure 9 is a sectional schematic diagram of the kettle of the application.

[0036] In the drawings: 1, kettle; 2, first sampling pipe; 3, second sampling pipe; 4, third sampling pipe; 5, lower sealing plate; 50, upper sealing groove; 51, mounting groove one; 52, insertion hole one; 53, insertion hole two; 54, mounting groove two; 55, lower sealing groove; 6, upper sealing plate; 7, overflow pipe one; 8, overflow pipe two; 9, overflow pipe three; 10, lower liquid pipe; 11, test tube; 12, bracket; 13, upper protruding block; 14, upper overflow hole; 15, communication pipe one; 16, spring one; 17, communication pipe two; 18, lower protruding block; 19, lower overflow hole; 20, spring two; 21, negative pressure pipe; 22, pressurizing pipe; 23, converging interface; 24, reflux pipe; 25, gate valve; 26, side plate block; 27, lifting groove; 28, reflux hole. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0038] In the description of the present application, it should be understood that the terms indicating the position or positional relationship are based on the position or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the present application; in the description of the present application, the meaning of "a plurality of" and "several" is at least two, such as two, three, etc., unless otherwise explicitly and specifically limited.

[0039] Please refer to Figures 1-9 As shown in the drawings, the present application is a kind of glufosinate ammonium reactor sampling equipment, including sampling tube group, lower sealing plate 5, upper sealing plate 6 and overflow pipe group, sampling tube group is inserted and connected tank 1, the opening end of sampling tube group is fixedly connected with lower sealing plate 5 and upper sealing plate 6 respectively, and the top end of sampling tube group is obliquely connected with overflow pipe group, the material liquid in tank 1 is extracted through sampling tube group, which is convenient for the overflow of the sampling material liquid in the overflow pipe group, and then it is convenient for collecting the sampling material liquid.

[0040] In the process of synthesizing glufosinate ammonium, the sampling tube group is sequentially provided with sampling tube one 2, sampling tube two 3 and sampling tube three 4 from inside to outside, the gap between sampling tube one 2 and sampling tube two 3 is provided, and the gap between sampling tube two 3 and sampling tube three 4 is provided. When phosphine acetal is synthesized in tank 1, methyl phosphite diethyl ester and acrolein are reacted, and phosphine acetal is preliminarily synthesized at 20 DEG C for 3h. The intermediate phosphine acetal needs to be sampled for chromatographic purity GC data and yield data. The phosphine acetal material liquid can be extracted through sampling tube one 2. When phosphine acetal is synthesized in tank 1, the intermediate phosphine acetal reacts with hydrochloric acid, and phosphine acetal is synthesized at 40 DEG C for 3h. The phosphine acetal needs to be sampled for chromatographic purity GC data and yield data. The phosphine acetal material liquid can be extracted through the gap between sampling tube one 2 and sampling tube two 3. When phosphine cyanide is synthesized in tank 1, the phosphine acetal, sodium cyanide and ammonium chloride are reacted in ammonia water, and the phosphine cyanide is synthesized at 45 DEG C for 3h. The phosphine cyanide needs to be sampled for chromatographic purity GC data and yield data. The phosphine cyanide material liquid can be extracted through the gap between sampling tube two 3 and sampling tube three 4.

[0041] During the sampling operation, a plurality of inlet valve assemblies and a plurality of outlet valve assemblies are respectively installed on the lower sealing plate 5, a plurality of negative pressure pipes 21 and a plurality of pressurizing pipes 22 are respectively installed on the upper sealing plate 6, the inner cavity of the sampling pipe one 2 is connected with a set of inlet valve assemblies, outlet valve assemblies, negative pressure pipes 21 and pressurizing pipes 22, the gap cavity between the sampling pipe one 2 and the sampling pipe two 3 is connected with a set of inlet valve assemblies, outlet valve assemblies, negative pressure pipes 21 and pressurizing pipes 22, and the gap cavity between the sampling pipe two 3 and the sampling pipe three 4 is connected with a set of inlet valve assemblies, outlet valve assemblies, negative pressure pipes 21 and pressurizing pipes 22; the overflow pipe group is sequentially provided with an overflow pipe one 7, an overflow pipe two 8 and an overflow pipe three 9 from inside to outside, one end of the overflow pipe one 7 is plug-connected with the sampling pipe one 2, one end of the overflow pipe two 8 is plug-connected with the sampling pipe two 3, one end of the overflow pipe three 9 is plug-connected with the sampling pipe three 4, the top end of a set of liquid down pipes 10 is plug-connected with the overflow pipe one 7, the top end of a set of liquid down pipes 10 is plug-connected with the overflow pipe two 8, and the top end of a set of liquid down pipes 10 is plug-connected with the overflow pipe three 9, and the test tubes 11 are arranged at the bottom end of the three sets of liquid down pipes 10.

[0042] When the phosphine acetal material liquid is drawn in the sampling pipe one 2, the inner cavity of the sampling pipe one 2 is negatively pressure drawn through the negative pressure pipe 21, the inlet valve assembly connected with the inner cavity of the sampling pipe one 2 is negatively pressure opened, so that the phosphine acetal material liquid enters the sampling pipe two 3 and is sucked to the top, and falls through the overflow pipe one 7, and in the falling process, the material liquid flows into the test tubes 11 through a set of liquid down pipes 10 for sampling, and the excess phosphine acetal material liquid in the sampling pipe one 2 is pressurized through the pressurizing pipe 22, the outlet valve assembly connected with the inner cavity of the sampling pipe one 2 is pressurized opened, so as to facilitate the reflux of the excess phosphine acetal material liquid to the kettle 1.

[0043] When the phosphine acetal material liquid is drawn in the gap between the sampling pipe one 2 and the sampling pipe two 3, and the phosphine nitrile material liquid is drawn in the gap between the sampling pipe two 3 and the sampling pipe three 4, the same operation of the sampling pipe one 2 can be used to realize the sampling of the material liquid, so that the material liquid of each step of synthesis is separately sampled, the reaction of different sampling material liquids in the same sampling pipe is avoided, the accuracy of the sampling data is avoided, and the authenticity of the sampling data is ensured.

[0044] In the specific embodiment, the inlet valve assembly comprises the upper protrusion 13, the communication pipe 15 and the spring 16, the lower sealing plate 5 is sequentially provided with the upper sealing groove 50, the mounting groove 51 and the insertion hole 52 from the upper plate surface to the lower plate surface, the upper protrusion 13 is inserted and connected in the upper sealing groove 50, the bottom end of the communication pipe 15 is inserted and connected in the insertion hole 52, the top end is fixedly connected with the upper protrusion 13, the spring 16 is arranged in the mounting groove 51, the spring 16 is connected with the upper protrusion 13, a plurality of upper overflow holes 14 are arranged on the side wall of the upper protrusion 13, when the sampling pipe group is inserted into the material liquid in the kettle 1, the upper protrusion 13 is contracted and connected through the spring 16, so that the upper protrusion 13 is contracted in the upper sealing groove 50, in different sampling operations, the negative pressure is drawn into different pipes, the upper protrusion 13 is stretched out of the upper sealing groove 50 along the suction force, so that the upper overflow holes 14 are unblocked, so that the material liquid in the kettle 1 is conveniently introduced into the upper protrusion 13 through the communication pipe 15, and is discharged into the corresponding sampling pipe through the upper overflow holes 14, and then the corresponding sampling pipe is sucked and discharged.

[0045] In the specific embodiment, the outlet valve assembly comprises the communication pipe 17, the lower protrusion 18 and the spring 20, the lower sealing plate 5 is sequentially provided with the insertion hole 53, the mounting groove 54 and the lower sealing groove 55 from the upper plate surface to the lower plate surface, the top end of the communication pipe 17 is inserted and connected in the insertion hole 53, the bottom end is fixedly connected with the lower protrusion 18, the lower protrusion 18 is inserted and connected in the lower sealing groove 55, the spring 20 is arranged in the mounting groove 54, the spring 20 is connected with the lower protrusion 18, a plurality of lower overflow holes 19 are arranged on the side wall of the lower protrusion 18, when the sampling pipe group is inserted into the material liquid in the kettle 1, the lower protrusion 18 is contracted and connected through the spring 20, so that the lower protrusion 18 is contracted in the lower sealing groove 55, so as to block the corresponding sampling pipe, when the sampling material liquid is left in the corresponding sampling pipe, the pressure is increased in the corresponding sampling pipe, so that the lower protrusion 18 is stretched out of the lower sealing groove 55, so as to unblock the lower overflow holes 19, so as to conveniently introduce the residual material liquid in the corresponding sampling pipe into the lower protrusion 18 through the communication pipe 17, and flow back to the kettle 1 through the lower overflow holes 19, so as to avoid the loss and waste of the material liquid, and avoid affecting the next sampling operation.

[0046] In the specific embodiment, the overflow pipe 9 is connected with the flared part of the converging interface 23 away from the opening end of the sampling pipe group, the converging part of the converging interface 23 is connected to the backflow hole 28 provided in the kettle 1 through the backflow pipe 24, in order to reduce the waste and loss of the sampling material liquid, facilitate the sampling material liquid sucked into the overflow pipe group to flow into the converging interface 23, and be transported into the kettle 1 through the backflow pipe 24, greatly reduce the waste of the sampling material liquid, so as to help reduce the production cost.

[0047] In the specific embodiment, the side plate block 26 is integrally arranged on the side wall of the kettle 1, and the lifting groove 27 is longitudinally arranged on the side plate block 26. The sampling pipe group is inserted into the lifting groove 27, so that the sampling pipe group can be inserted and installed in the lifting groove 27, and different sampling positions can be adjusted.

[0048] In the specific embodiment, the bracket 12 is fixedly installed on the side plate block 26, and the test tube 11 is inserted into the groove of the bracket 12, so that the test tube 11 is conveniently supported and placed.

[0049] In the specific embodiment, the gate valve 25 is arranged on the liquid outlet pipe 10, so that the opening or communication of the liquid outlet pipe 10 can be conveniently controlled.

[0050] The above describes one embodiment of the present application in detail, but the content described is only a preferred embodiment of the present application, and cannot be considered as limiting the implementation range of the present application. Any equivalent changes and improvements made according to the application scope of the present application should still belong to the patent coverage range of the present application.

Claims

1. A glufosinate-ammonium reactor sampling device, characterized by, The utility model provides a kind of sampling tube group, insert connection kettle (1) is connected, the sampling tube group is sequentially provided with sampling tube one (2), sampling tube two (3) and sampling tube three (4) from inside to outside, gap is arranged between sampling tube one (2) and sampling tube two (3), gap is arranged between sampling tube two (3) and sampling tube three (4);Lower sealing plate (5) and upper sealing plate (6) are fixedly connected in the opening end of the sampling tube group respectively;Multiple sets of inlet valve assemblies and multiple sets of outlet valve assemblies are installed on the lower sealing plate (5) respectively, the inner cavity of sampling tube one (2) is connected with a set of inlet valve assembly and outlet valve assembly, the gap cavity of sampling tube one (2) and sampling tube two (3) is connected with a set of inlet valve assembly and outlet valve assembly, the gap cavity of sampling tube two (3) and sampling tube three (4) is connected with a set of inlet valve assembly and outlet valve assembly;Multiple sets of negative pressure pipes (21) and multiple sets of pressurizing pipes (22) are installed on the upper sealing plate (6) respectively, the inner cavity of sampling tube one (2) is connected with a set of negative pressure pipe (21) and pressurizing pipe (22), the gap cavity of sampling tube one (2) and sampling tube two (3) is connected with a set of negative pressure pipe (21) and pressurizing pipe (22), the gap cavity of sampling tube two (3) and sampling tube three (4) is connected with a set of negative pressure pipe (21) and pressurizing pipe (22);Overflow pipe group is obliquely connected in the top end of the sampling tube group, the overflow pipe group is sequentially provided with overflow pipe one (7), overflow pipe two (8) and overflow pipe three (9) from inside to outside, one end of overflow pipe one (7) is connected with sampling tube one (2), one end of overflow pipe two (8) is connected with sampling tube two (3), one end of overflow pipe three (9) is connected with sampling tube three (4);Three groups of liquid down pipes (10), one end of one group of the liquid down pipe (10) is connected with overflow pipe one (7), one end of one group of the liquid down pipe (10) is connected with overflow pipe two (8), one end of one group of the liquid down pipe (10) is connected with overflow pipe three (9);Test tube (11) is arranged in the bottom end of three groups of the liquid down pipe (10). The inlet valve assembly includes upper bump (13), communication pipe one (15) and spring one (16), upper sealing groove (50), installation groove one (51) and insertion hole one (52) are sequentially arranged in the lower sealing plate (5) from upper plate surface to lower plate surface, the upper bump (13) is connected in the upper sealing groove (50), the bottom end of the communication pipe one (15) is connected in the insertion hole one (52), the top end is fixedly connected with the upper bump (13), the spring one (16) is arranged in the installation groove one (51), the spring one (16) is connected with the upper bump (13), and a plurality of overflow holes (14) are arranged on the side wall of the upper bump (13). ​ ​ ​ ​ ​ ​ 2. The glufosinate-ammonium reactor sampling device according to claim 1, characterized in that ​ 3. The glufosinate-ammonium reactor sampling device according to claim 1, characterized in that The outlet valve assembly comprises a communication pipe two (17), a lower protrusion (18) and a spring two (20), the lower sealing plate (5) is sequentially provided with a second insertion hole (53), a second installation slot (54) and a lower sealing groove (55) from the upper plate surface to the lower plate surface, the top end of the communication pipe two (17) is inserted and connected in the second insertion hole (53), the bottom end is fixedly connected with the lower protrusion (18), the lower protrusion (18) is inserted and connected in the lower sealing groove (55), the spring two (20) is arranged in the second installation slot (54), the spring two (20) is connected with the lower protrusion (18), and a plurality of lower liquid overflow holes (19) are formed in the side wall of the lower protrusion (18).

4. The glufosinate-ammonium reactor sampling device according to claim 1, characterized in that The overflow pipe three (9) is connected with the flared part of the converging interface (23) away from the opening end of the sampling pipe group, the converging part of the converging interface (23) is connected to the reflux hole (28) of the kettle (1) through the reflux pipe (24).

5. The glufosinate-ammonium reactor vessel sampling apparatus of claim 1, wherein, The side plate block (26) is integrally arranged on the side wall of the kettle (1), the lifting groove (27) is longitudinally arranged on the side plate block (26), and the sampling pipe group is inserted and connected in the lifting groove (27).

6. The glufosinate-ammonium reactor vessel sampling apparatus of claim 5, wherein, The bracket (12) is fixedly installed on the side plate block (26), and the test tube (11) is inserted in the groove of the bracket (12).

7. The glufosinate-ammonium reactor sampling device according to claim 1, characterized by The lower liquid pipe (10) is provided with a gate valve (25).

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