Defoaming agent performance detection device and method

Abstract

The invention discloses a defoaming agent performance detection device and method, and belongs to the technical field of defoaming agent performance detection.The defoaming agent performance detection device comprises an experiment table, a defoaming agent tank, a clear water tank, an experiment liquid tank and a plurality of transparent experiment tanks arranged on the experiment table; the bottoms of the defoaming agent tank, the clear water tank and the experimental liquid tank are respectively connected with a first pipeline, a second pipeline and a third pipeline through a first liquid supply pump, a second liquid supply pump and a third liquid supply pump, and the first pipeline, the second pipeline and the third pipeline are respectively provided with a first valve, a second valve and a third valve which are communicated with the conveying pipeline; the conveying pipelines are respectively communicated with the transparent experiment tanks through fourth valves; a stirring assembly is arranged in the transparent experiment tank and is connected with a driving assembly. According to the invention, the defoaming performance of different defoaming agent dosages can be transversely compared, and the defoaming performance of the defoaming agent can be longitudinally observed, so that the detection of the defoaming performance is more intuitive, time-saving and labor-saving, and the defoaming performance detection device is very suitable for the defoaming performance detection of a new defoaming agent.

Description

Technical Field

[0001] The present invention relates to the technical field of defoamer performance detection, and particularly relates to a defoamer performance detection device and method. Background Art

[0002] A defoamer is a substance that can reduce the surface tension of water, solution, suspension, etc., prevent the formation of foam, or reduce or eliminate the original foam. It is usually used in industries such as food, papermaking, or washing. As a chemical substance that can effectively reduce the generation of foam, the performance detection of defoamers is particularly important. The Chinese patent with the publication number CN222652783U discloses a defoamer test device for defoaming performance detection. It can not only fully stir and mix the defoamer and the detection liquid to ensure the comprehensiveness and accuracy of the detection, but also filter and heat the detected liquid, and can detect the defoaming ability of the defoamer in a static environment. However, its detection method can only make a longitudinal comparison of the defoaming ability over time, and cannot make a horizontal comparison of the defoaming ability with different dosages, that is, under the conditions of different defoamer dosages, its performance cannot be compared and observed, which is not convenient for obtaining the relationship between the change in defoamer dosage and the defoaming ability. When selecting a new defoamer, a large number of defoaming tests are required to obtain the appropriate defoamer dosage, which is time-consuming and laborious. Summary of the Invention

[0003] The purpose of the present invention is to provide a defoamer performance detection device and method to solve the problem that the existing defoaming ability detection device of defoamers cannot compare and observe its performance under the conditions of different defoamer dosages, and it is not convenient to obtain the relationship between the change in defoamer dosage and the defoaming ability.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A defoamer performance detection device includes: an experimental table, a defoamer tank, a clear water tank, an experimental liquid tank, and a plurality of transparent experimental tanks arranged on the experimental table; the bottoms of the defoamer tank, the clear water tank, and the experimental liquid tank are respectively connected with a first pipeline, a second pipeline, and a third pipeline through a first liquid supply pump, a second liquid supply pump, and a third liquid supply pump. The first pipeline, the second pipeline, and the third pipeline are respectively provided with a first valve, a second valve, and a third valve and are communicated with a conveying pipeline. The conveying pipeline is respectively communicated with the transparent experimental tank through a fourth valve; a stirring assembly is arranged inside the transparent experimental tank, and the stirring assembly is connected with a driving assembly.

[0006] Furthermore, a diversion ring communicated with the conveying pipeline is arranged outside the top of the transparent experimental tank, and the inner side wall of the diversion ring is communicated with the inside of the transparent experimental tank through a plurality of diversion holes.

[0007] Furthermore, the bottom of the transparent experimental tank is connected to a sewage pipe via a sewage valve, and the sewage pipe is connected to a sewage collection tank.

[0008] Furthermore, the bottom of the transparent experimental tank is embedded in the experimental table, a heater for heating the transparent experimental tank is provided inside the experimental table, and a digital thermometer for obtaining the temperature of the liquid in the transparent experimental tank is provided on the experimental table.

[0009] Furthermore, the above-mentioned stirring assembly includes a stirring shaft, a stirring rod arranged on the outside of the stirring shaft through an elastic telescopic rod, and a cleaning layer arranged on the outside of the stirring rod; the top of the stirring shaft extends out of the transparent experimental tank and is connected to the driving assembly, and the stirring shaft rotates with the top and bottom of the transparent experimental tank; the telescopic direction of the elastic telescopic rod is perpendicular to the rotation axis of the stirring shaft.

[0010] Furthermore, a plurality of stirring support rods are arranged on the inner side of the stirring rod; the cleaning layer is a brush layer, a fluff layer or a sponge layer, and its outer side is arc-shaped and matches the arc of the inner wall of the transparent experimental tank.

[0011] Furthermore, the above-mentioned driving assembly includes a transmission wheel arranged on the top of the stirring rod, a transmission belt connecting all the transmission wheels, a driver connected to one of the transmission wheels, and a tensioning device for tensioning the transmission belt; the tensioning device includes a connecting rod and a tensioning wheel arranged on the connecting rod, the tensioning wheel is arranged on the outside of the transmission belt and a tensioning wheel is provided between adjacent transmission wheels.

[0012] Furthermore, the transmission belt is a belt or a toothed belt.

[0013] A defoamer performance detection method based on the above defoamer performance detection device comprises the following steps:

[0014] S1: Open the third valve, inject the experimental liquid into each transparent experimental tank through the third liquid supply pump, and ensure that the amount of the experimental liquid in each transparent experimental tank is consistent, and close the third valve;

[0015] S2: The driving component drives all stirring components to make the experimental liquid in all transparent experimental tanks bubble;

[0016] S3: Open the first valve, and inject different amounts of defoamer solution into each transparent test tank through the first liquid supply pump; after injecting the defoamer solution once, open the second valve, and inject clean water into the pipeline through the second liquid supply pump, so that all the defoamer solutions enter the corresponding transparent test tanks;

[0017] S4: The driving component drives all stirring components to mix the defoaming agent solution and the experimental solution evenly;

[0018] S5: Let it stand for a while, and observe and record the defoaming effect in each transparent test tank;

[0019] S6: Collect the waste liquid in each transparent experimental tank.

[0020] Further, after the above step S6, there is also step S7: Open the second valve, inject clear water into each transparent experimental tank through the second liquid supply pump, and make the driving assembly drive all the stirring assemblies to work. The stirring rod moves away from the stirring shaft under the action of centrifugal force, so that the cleaning layer rubs the inner wall of the transparent experimental tank to clean the inner wall of the transparent experimental tank, and collect the cleaning waste liquid after the cleaning is completed.

[0021] The present invention has the following beneficial effects:

[0022] (1) The present invention can add experimental liquid, defoaming agent and clear water to all transparent experimental tanks respectively through the liquid supply pump. By making the defoaming agent content in each transparent experimental tank different, the defoaming performance of different defoaming agent dosages can be compared horizontally, and the defoaming performance of the defoaming agent can also be observed longitudinally, so that the detection of the defoaming performance is more intuitive, time-saving and labor-saving, and is very suitable for the defoaming performance detection of new defoaming agents.

[0023] (2) Only a diversion ring is provided at the top of the transparent experimental tank of the present invention. After each liquid enters the diversion ring, it is diverted from the diversion holes, thereby reducing the flow rate in a single diversion hole, enabling the fluid to slowly flow into the inner wall of the transparent experimental tank, reducing interference factors such as a large amount of bubbles being generated in the experimental liquid in advance due to the agitation of the liquid and the defoaming agent defoaming over a large area in advance, and enabling the whole detection to carry out the defoaming reaction after unified stirring, improving the accuracy of the comparative experiment.

[0024] (3) The stirring assemblies of the present invention work synchronously under the drive of the driving assembly, making the stirring degree, stirring start and stop time and other conditions in each transparent experimental tank consistent, which is convenient for carrying out comparative experiments.

[0025] (4) When the rotational speed of the stirring assembly of the present invention is relatively high, under the action of centrifugal force and the elastic telescopic rod, the stirring rod will move away from the stirring shaft until the cleaning layer contacts the inner side wall of the transparent experimental tank, thereby facilitating the cleaning of the inner side wall of the transparent experimental tank and facilitating the observation of the next experiment.

[0026] (5) When detecting the defoaming performance of the present invention, the defoaming agent solution and the experimental liquid can be injected into the transparent experimental tank through the same defoaming agent tank, clear water tank and experimental liquid tank, ensuring that the components of the defoaming agent solution and the experimental liquid in all experimental liquid tanks are the same, making the comparative experiment comparable. In addition, during the liquid addition process, the pipeline is flushed with clear water to ensure that the amount of defoaming agent and experimental liquid added to each transparent experimental tank is the set value, making the comparative experiment more reliable. Description of the Drawings

[0027] Figure 1Schematic structural diagram of the defoamer performance detection device of the present invention;

[0028] Figure 2 Schematic flow diagram of the defoamer performance detection device of the present invention;

[0029] Figure 3 Schematic structural diagram of the transparent experimental tank of the present invention;

[0030] Figure 4 Schematic structural diagram of the stirring assembly of the present invention.

[0031] In the figure: 10 - experimental bench; 20 - defoamer tank; 21 - first liquid supply pump; 22 - first pipeline; 23 - first valve; 30 - clean water tank; 31 - second liquid supply pump; 32 - second pipeline; 33 - second valve; 40 - experimental liquid tank; 41 - third liquid supply pump; 42 - third pipeline; 43 - third valve; 50 - transparent experimental tank; 51 - guide ring; 52 - guide hole; 53 - sewage valve; 54 - sewage discharge pipeline; 60 - conveying pipeline; 61 - fourth valve; 70 - stirring assembly; 71 - stirring shaft; 72 - elastic telescopic rod; 73 - stirring rod; 74 - cleaning layer; 75 - stirring support rod; 80 - driving assembly; 81 - transmission wheel; 82 - transmission belt; 83 - tensioning device; 90 - sewage collection tank; 831 - connecting rod; 832 - tensioning wheel. Detailed implementation manners

[0032] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0033] Please refer to Figures 1 to 4 , this embodiment provides a defoamer performance detection device, including: an experimental bench 10, a defoamer tank 20, a clean water tank 30, an experimental liquid tank 40, and a plurality of transparent experimental tanks 50 arranged on the experimental bench 10. The defoamer tank 20, the clean water tank 30, and the experimental liquid tank 40 are respectively communicated with all the transparent experimental tanks 50. The experimental bench 10 is supported by a bracket (not shown). The bracket can be set as a special bracket for the experimental bench 10, or can directly use existing items in the laboratory that can serve as brackets, as long as the functions of support and fixation can be achieved. The defoamer tank 20, the clean water tank 30, and the experimental liquid tank 40 are used to contain defoamer solution, clean water, and experimental liquid. The clean water is used to flush the pipeline and clean the transparent experimental tank 50. The experimental liquid is based on the specific experimental liquid during the experiment, and it is in a bubble-free state in the experimental liquid tank 40 and generates bubbles after stirring. The defoamer tank 20, the clean water tank 30, and the experimental liquid tank 40 are also installed on the bracket, and their bottoms are higher than the tops of the transparent experimental tanks 50, facilitating the liquid in the pipeline to flow into the transparent experimental tanks 50.

[0034] The defoamer tank 20, the clean water tank 30 and the experimental liquid tank 40 can be fixed by brackets. Their bottoms are respectively connected with a first pipeline 22, a second pipeline 32 and a third pipeline 42 through a first liquid supply pump 21, a second liquid supply pump 31 and a third liquid supply pump 41. The first pipeline 22, the second pipeline 32 and the third pipeline 42 are respectively provided with a first valve 23, a second valve 33 and a third valve 43 and are communicated with a conveying pipeline 60. The conveying pipeline 60 is respectively communicated with all the transparent experimental tanks 50 through a fourth valve 61.

[0035] The defoamer performance detection device of this embodiment can respectively add experimental liquid, defoamer and clean water into all the transparent experimental tanks 50 through liquid supply pumps. By making the defoamer content in each transparent experimental tank 50 different, the defoaming performance of different defoamer dosages can be horizontally compared, and the defoaming performance of the defoamer can also be longitudinally observed, so that the detection of the defoaming performance is more intuitive, time-saving and labor-saving, and is very suitable for the defoaming performance detection of new defoamers.

[0036] The transparent experimental tank 50 can be made of a transparent material as a whole, or the middle part can be made of a transparent material and the two ends can be made of other materials, such as stainless steel, as long as it can observe the defoaming process. A diversion ring 51 is arranged on the outer side of the top of the transparent experimental tank 50. The inside of the diversion ring 51 is hollow, and a plurality of diversion holes 52 are opened on the inner side wall. The bottom of the diversion holes 52 extends to the bottom wall of the diversion ring 51, so as to avoid the accumulation of liquid. A through hole communicated with the diversion holes 52 is arranged on the side wall of the transparent experimental tank 50. The diversion ring 51 is communicated with the conveying pipeline 60, and the on-off of the liquid is controlled through the fourth valve 61.

[0037] After each liquid enters the diversion ring 51, it is diverted from the diversion holes 52, thereby reducing the flow rate in a single diversion hole 52, enabling the fluid to slowly flow into the inner wall of the transparent experimental tank 50, reducing interference factors such as the premature generation of a large number of bubbles in the experimental liquid and the premature large-area defoaming of the defoamer caused by the agitation of the liquid, and enabling the entire detection to carry out the defoaming reaction after unified stirring, improving the accuracy of the comparative experiment.

[0038] The bottom of the transparent experimental tank 50 is embedded in the experimental table 10. The transparent experimental tank 50 can be fixed in this embedding manner, or the transparent experimental tank 50 can be fixed by a bracket. The bottom of the transparent experimental tank 50 is connected with a sewage discharge pipeline 54 through a sewage valve 53. The sewage discharge pipeline 54 is located outside the bottom of the experimental table 10 and is connected with a sewage collection tank 90. In order to heat the transparent experimental tank 50, a heater for heating the transparent experimental tank 50 is arranged inside the experimental table 10, and a digital display thermometer for obtaining the temperature of the liquid in the transparent experimental tank 50 is arranged on the experimental table 10.

[0039] Inside the transparent experimental tank 50, a stirring assembly 70 is provided. The stirring assembly 70 includes a stirring shaft 71, stirring rods 73, and a cleaning layer 74. The top of the stirring shaft 71 extends out of the top of the transparent experimental tank 50 and is connected to a driving assembly 80. The stirring shaft 71 is rotatably fitted with the top and bottom of the transparent experimental tank 50 respectively. The stirring rods 73 are arranged parallel to the stirring shaft 71, and the top and bottom of the stirring rods 73 are respectively connected to the stirring shaft 71 through elastic telescopic rods 72. The telescopic direction of the elastic telescopic rods 72 is perpendicular to the rotation axis of the stirring shaft 71. The elastic telescopic rods 72 adopt an existing telescopic structure, that is, including a telescopic rod and a telescopic sleeve, and a return spring is provided between the telescopic rods. This structure belongs to the prior art and will not be elaborated here. A cleaning layer 74 is provided on the outer side of the stirring rods 73, and several stirring support rods 75 are provided on the inner side of the stirring rods 73. The cleaning layer 74 is a brush layer or a fluff layer or a sponge layer, and its outer side is arc-shaped and matches the radian of the inner wall of the transparent experimental tank 50.

[0040] During the normal experimental stirring process, the stirring shaft 71 rotates slowly, and the elastic telescopic rods 72 will not expand and contract under the action of friction. During the cleaning process, the stirring shaft 71 rotates rapidly, and the centrifugal force of the elastic telescopic rods 72 is greater than the friction force. At this time, the elastic telescopic rods 72 extend, so that the cleaning layer 74 contacts the inner wall of the transparent experimental tank 50, and the inner wall of the transparent experimental tank 50 is cleaned, which is convenient for the observation of the next experiment.

[0041] The driving assembly 80 includes a transmission wheel 81, a transmission belt 82, a driver, and a tensioning device 83. A transmission wheel 81 is fixedly connected to the top of each stirring rod 73, and a transmission belt 82 is sleeved on the outer sides of all the transmission wheels 81. One of the transmission wheels 81 is connected to a driver, and the driver can adopt any device that can drive the transmission wheel 81 to rotate, such as a motor. The tensioning device 83 includes a connecting rod 831 fixedly arranged on the bracket and a tensioning wheel 832 arranged on the connecting rod 831. The tensioning wheel 832 is arranged on the outer side of the transmission belt 82, and tensioning wheels 832 are provided between adjacent transmission wheels 81. By applying an extrusion force to the transmission belt 82 through the tensioning wheels 832, the transmission belt 82 is in close contact with the transmission wheels 81, so as to realize the synchronous rotation of all the transmission wheels 81, and thus realize the synchronous operation of all the stirring assemblies 70, so that the stirring degree, stirring start and stop time and other conditions in each transparent experimental tank 50 are the same, which is convenient for carrying out comparative experiments.

[0042] In this embodiment, the transmission belt 82 is a belt or a toothed belt. In other embodiments of the present invention, in order to prevent the transmission belt 82 from falling off, an annular groove for accommodating the transmission belt 82 is provided on the outer side of the transmission wheel 81; the number of the tensioning devices 83 can be 2, which are respectively arranged on the two opposite outer sides of the transmission belt 82 to jointly tension the transmission belt 82.

[0043] This embodiment also provides a defoamer performance detection method using the above defoamer performance detection device, comprising the following steps:

[0044] S1: Open the third valve 43, inject the experimental liquid into each transparent experimental tank 50 through the third liquid supply pump 41, and ensure that the amount of the experimental liquid in each transparent experimental tank 50 is consistent, and close the third valve 43; during the liquid injection process, open each fourth valve 61 in sequence.

[0045] S2: The driving assembly 80 drives all the stirring assemblies 70 to move in conjunction, so that the experimental liquids in all the transparent experimental tanks 50 are foamed synchronously.

[0046] S3: Open the first valve 23, and inject different amounts of defoaming agent solution into each transparent experimental tank 50 through the first liquid supply pump 21; after injecting the defoaming agent solution once, close the first valve 23, and then open the second valve 33, and inject clean water into the pipeline through the second liquid supply pump 31, so that all the defoaming agent solutions enter the corresponding transparent experimental tank 50, then close the second valve 33, and then open the first valve 23, and continue to inject the defoaming agent solution into the next transparent experimental tank 50; when injecting clean water into all transparent experimental tanks 50, the sum of the volumes of clean water and defoaming agent solution injected into each transparent experimental tank 50 is consistent.

[0047] S4: The driving assembly 80 drives all the stirring assemblies 70 to be linked so that the defoaming agent solution and the experimental solution are mixed evenly.

[0048] S5: Let it stand for a while, and observe and record the defoaming effect in each transparent test jar 50.

[0049] S6: Open all sewage valves 53, collect the waste liquid in each transparent experimental tank 50 into the sewage collection tank 90, and close all sewage valves 53.

[0050] S7: Open the second valve 33, inject clean water into each transparent experimental tank 50 through the second liquid supply pump 31, and enable the driving component 80 to drive all the stirring components 70 to work. The stirring rod 73 moves away from the stirring shaft 71 under the action of centrifugal force, so that the cleaning layer 74 rubs the inner wall of the transparent experimental tank 50 to clean the inner wall of the transparent experimental tank 50. After cleaning, open all sewage valves 53 to collect the cleaning liquid in each transparent experimental tank 50 into the sewage collection tank 90.

[0051] Obviously, in order to improve the cleaning effect, step S7 can be repeated.

[0052] When performing the defoaming performance detection, in this embodiment, the defoaming agent solution, clear water, and experimental liquid can be injected into the transparent experimental tank 50 through the same defoaming agent tank 20, clear water tank 30, and experimental liquid tank 40, ensuring that the components of the defoaming agent solution and the experimental liquid in all the experimental liquid tanks 40 are consistent, making the comparative experiment comparable. In addition, during the liquid addition process, the pipeline is flushed with clear water to ensure that the amounts of the defoaming agent and the experimental liquid added to each transparent experimental tank 50 are set values, making the comparative experiment more reliable.

[0053] The foregoing are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A defoamer performance detection device, characterized in that, Including: An experimental bench (10), an antifoaming agent tank (20), a clear water tank (30), an experimental liquid tank (40), and a plurality of transparent experimental tanks (50) arranged on the experimental bench (10); the bottoms of the antifoaming agent tank (20), the clear water tank (30), and the experimental liquid tank (40) are respectively connected with a first pipeline (22), a second pipeline (32), and a third pipeline (42) through a first liquid supply pump (21), a second liquid supply pump (31), and a third liquid supply pump (41). The first pipeline (22), the second pipeline (32), and the third pipeline (42) are respectively provided with a first valve (23), a second valve (33), and a third valve (43) and are communicated with a conveying pipeline (60). The conveying pipeline (60) is respectively communicated with the transparent experimental tank (50) through a fourth valve (61); a stirring assembly (70) is arranged inside the transparent experimental tank (50), and the stirring assembly (70) is connected with a driving assembly (80).

2. The defoamer performance detection device according to claim 1, wherein A diversion ring (51) communicated with the conveying pipeline (60) is arranged on the outer side of the top of the transparent experimental tank (50), and the inner side wall of the diversion ring (51) is communicated with the inside of the transparent experimental tank (50) through a plurality of diversion holes (52).

3. The defoamer performance detection device according to claim 1, wherein, The bottom of the transparent experimental tank (50) is connected with a sewage discharge pipeline (54) through a sewage valve (53), and the sewage discharge pipeline (54) is connected with a sewage collection tank (90).

4. The antifoaming agent performance detection device according to claim 1, wherein The bottom of the transparent experimental tank (50) is embedded in the experimental bench (10), a heater for heating the transparent experimental tank (50) is arranged inside the experimental bench (10), and a digital display thermometer for obtaining the liquid temperature inside the transparent experimental tank (50) is arranged on the experimental bench (10).

5. The antifoaming agent performance detection device according to any one of claims 1 to 4, characterized in that, The stirring assembly (70) includes a stirring shaft (71), stirring rods (73) arranged on the outer side of the stirring shaft (71) through elastic telescopic rods (72), and a cleaning layer (74) arranged on the outer side of the stirring rods (73); the top of the stirring shaft (71) extends out of the transparent experimental tank (50) and is connected with the driving assembly (80), and the stirring shaft (71) is rotationally matched with the top and bottom of the transparent experimental tank (50); the telescopic direction of the elastic telescopic rod (72) is perpendicular to the rotation axis of the stirring shaft (71).

6. The antifoaming agent performance detection device according to claim 5, characterized in that, A plurality of stirring support rods (75) are arranged on the inner side of the stirring rod (73); the cleaning layer (74) is a brush layer or a fluff layer or a sponge layer, and its outer side is arc-shaped and matches the radian of the inner side wall of the transparent experimental tank (50).

7. The antifoaming agent performance detection device according to claim 5, characterized in that, The driving assembly (80) comprises a transmission wheel (81) arranged at the top of the stirring rod (73), a transmission belt (82) connecting all the transmission wheels (81), a driver connected to one of the transmission wheels (81), and a tensioning device (83) for tensioning the transmission belt (82); the tensioning device (83) comprises a connecting rod (831) and a tensioning wheel (832) arranged on the connecting rod (831); the tensioning wheel (832) is arranged on the outside of the transmission belt (82) and the tensioning wheel (832) is provided between adjacent transmission wheels (81).

8. The antifoaming agent performance detection device according to claim 7, characterized in that, The transmission belt (82) is a belt or a toothed belt.

9. A method for detecting the performance of an antifoaming agent based on the antifoaming agent performance detection device according to any one of claims 1 to 8, characterized in that, The following steps are involved: S1: Open the third valve (43), inject the experimental liquid into each transparent experimental tank (50) through the third liquid supply pump (41), ensure that the amount of the experimental liquid in each transparent experimental tank (50) is consistent, and close the third valve (43); S2: the driving component (80) drives all the stirring components (70) to work together to cause the experimental liquids in all the transparent experimental tanks (50) to bubble; S3: opening the first valve (23) and injecting different amounts of defoaming agent solution into each transparent test tank (50) through the first liquid supply pump (21); after injecting the defoaming agent solution once, opening the second valve (33) and injecting clean water into the pipeline through the second liquid supply pump (31), so that all the defoaming agent solution enters the corresponding transparent test tank (50); S4: the driving component (80) drives all the stirring components (70) to work together to mix the defoaming agent solution and the experimental solution evenly; S5: After standing for a period of time, observe and record the defoaming effect in each transparent test tank (50); S6: Collect the waste liquid in each transparent experimental tank (50).

10. A defoamer performance detection method according to claim 9, characterized in that, After step S6, there is also step S7: opening the second valve (33), injecting clean water into each transparent experimental tank (50) through the second liquid supply pump (31), and making the driving component (80) drive all the stirring components (70) to work, so that the stirring rod (73) moves away from the stirring shaft (71) under the action of centrifugal force, so that the cleaning layer (74) rubs the inner wall of the transparent experimental tank (50), and cleans the inner wall of the transparent experimental tank (50), and collects the cleaning waste liquid after the cleaning is completed.

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