Defoaming agent performance testing device for laboratory

Abstract

A defoaming agent performance testing device for a laboratory comprises a device body, the device body comprises a measuring assembly and a foaming assembly, the measuring assembly comprises a graduated cylinder and a liquid flowmeter, and a thread is arranged at the bottom end of the graduated cylinder; the bubbling assembly is a hollow shell, a threaded connector is arranged at the top end of the shell, a constant-temperature heating groove and a circulating pump are arranged in the shell, a heating piece is arranged at the bottom end in the constant-temperature heating groove, and the graduated cylinder, the liquid flowmeter, the constant-temperature heating groove and the circulating pump are connected through metal guide pipes. During use, foaming liquid prepared according to a certain proportion is added into the constant-temperature heating tank from the upper end of the graduated cylinder, the switch is turned on, the heating piece starts to work to heat the foaming liquid, the liquid flowmeter on the metal guide pipe is adjusted to reach the flow speed specified by an experiment, the circulating pump enables the foaming liquid to foam in the device in a circulating mode, and timing is started at the same time; foam is guided into the graduated cylinder through the nozzle on the metal conduit, and the change rule of the foam volume along with time is recorded.

Description

Technical Field

[0001] The utility model belongs to the field of defoamer performance testing, and specifically relates to a defoamer performance testing device for laboratory use. Background Art

[0002] The strip degreasing and cleaning process is an important processing process in silicon steel production. During the strip degreasing and cleaning process, foam is generated during alkali washing and electrolytic cleaning. A certain amount of foam can increase the decontamination ability of degreasing and cleaning, improving the surface quality of the strip. However, too much foam will affect the subsequent production of the strip, the operation of workers, production costs, etc. Generally, we need to select a suitable strip degreasing defoamer to solve this problem. Therefore, a defoamer performance testing device is required to test and obtain a suitable defoamer. However, there are some difficult problems with ordinary testing equipment: ordinary testing equipment cannot meet the requirements for testing multiple performance indicators of defoamers, has low testing efficiency, inaccurate results, and low repeatability. Summary of the Utility Model

[0003] In view of the above, the utility model provides a defoamer performance testing device for laboratory use to solve the problems raised in the above background art.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a defoamer performance testing device for laboratory use, including a device main body. The device main body includes a measuring component for measuring the height of foam or liquid height, and a foaming component for foaming the foaming agent. The measuring component is located above the foaming component. It includes a graduated cylinder for measuring the height of foam and a liquid flowmeter for regulating the flow rate of the foaming liquid. The bottom end of the graduated cylinder is provided with a thread; the foaming component is a hollow shell, the top end of the shell is provided with a threaded interface rotatably fixed with the thread, and the inside of the shell is provided with a constant temperature heating tank for heating the foaming liquid and a circulation pump for circulating and foaming the foaming liquid. The bottom end inside the constant temperature heating tank is provided with a heating sheet for heating the constant temperature heating tank. The graduated cylinder, the liquid flowmeter, the constant temperature heating tank, and the circulation pump are connected through a metal conduit. The output end of the metal conduit is provided with a nozzle directly above the graduated cylinder; during use, the foaming liquid is added to the graduated cylinder, the foaming liquid is heated by the constant temperature heating tank, foamed by the circulation pump, and finally the foam is introduced into the graduated cylinder through the metal tube.

[0005] Further, a drain valve for discharging liquid outward is provided at the bottom end of the heating tank. After the experiment is completed, the solution in the device main body can be drained through the drain valve, which is convenient for cleaning and the next experiment.

[0006] Further, the connecting pipelines between the graduated cylinder, the liquid flowmeter, the constant temperature heating tank, the circulation pump, the drain valve, and the metal conduit are made of rubber material. The rubber material has good corrosion resistance and is not easily corroded by the solution accumulated at the connection.

[0007] Furthermore, a switch is provided outside the housing. The output end of the switch is respectively connected to the input end of the constant-temperature heating tank and the input end of the circulation pump, and the heating condition of the constant-temperature tank and the circulation condition of the circulation pump can be controlled by the switch.

[0008] Furthermore, an opening for the metal conduit to pass through is provided at the top of the housing, and the metal conduit between the circulation pump and the liquid flowmeter passes through the opening.

[0009] The beneficial effects of the present utility model are as follows: The main body of the device can test the dynamic defoaming performance of the defoamer under conditions closer to the usage environment of the defoamer in industrial production, integrates various foaming methods, and can simultaneously measure multiple performance indicators of the defoamer, with high test efficiency, accurate results, and good repeatability. Description of the Drawings

[0010] Figure 1 is a schematic structural diagram of the present utility model.

[0011] In Figure 1 it, 1. Main body of the device; 101. Measuring component; 102. Graduated measuring cylinder; 103. Liquid flowmeter; 104. Thread; 2. Foaming component; 201. Housing; 202. Constant-temperature heating tank; 203. Heating element; 204. Circulation pump; 205. Metal conduit; 206. Nozzle; 207. Threaded interface; 208. Opening; 209. Drain valve; 210. Switch. Specific Embodiments

[0012] The following further describes the present utility model in conjunction with the drawings and some embodiments.

[0013] In Figure 1In this case, a performance testing device for defoamers in a laboratory includes a device main body 1. The device main body 1 includes a measurement component 101 for measuring the height of foam or liquid, and a foaming component 2 for foaming a foaming agent. The measurement component 101 is located above the foaming component 2. It includes a graduated cylinder 102 for measuring the height of foam and a liquid flowmeter 103 for regulating the flow rate of the foaming liquid. It is necessary to manually add the foaming liquid into the graduated cylinder 102. The bottom end of the graduated cylinder 102 is provided with a thread 104. The foaming component 2 is a hollow outer shell 201. The top end of the outer shell 201 is provided with a threaded interface 207 that is rotationally fixed to the thread 104. The graduated cylinder 102 is fixed to the threaded interface 207 through the thread 104 at the bottom end of the graduated cylinder 102. Inside the outer shell 201, there is a constant temperature heating tank 202 for heating the foaming liquid and a circulation pump 204 for circulating and foaming the foaming liquid. At the bottom end inside the constant temperature heating tank 202, there is a heating element 203 for heating the constant temperature heating tank 202. The graduated cylinder 102, the liquid flowmeter 103, the constant temperature heating tank 202, and the circulation pump 204 are connected through a metal conduit 205. The metal conduit 205 between the graduated cylinder 102 and the constant temperature heating tank 202 is fixed at the threaded interface 207 through a fixing method such as adhesives. When the graduated cylinder 102 is fixed at the threaded interface 207, a passage is formed between the graduated cylinder 102 and the constant temperature heating tank 202 through the metal conduit 205. The output end of the metal conduit 205 is provided with a nozzle 206 directly above the graduated cylinder 102. The heating element 203 heats the foaming liquid. The liquid flowmeter 103 on the metal conduit 205 is adjusted to the flow rate specified in the experiment. The circulation pump 204 causes the foaming liquid to circulate and foam in the device. During the circulation process, the foam continuously rises through the metal conduit 205, and finally the foam is introduced into the graduated cylinder 102 through the nozzle 206 on the metal conduit 205. When in use, the foaming liquid is added into the graduated cylinder 102. The foaming liquid is heated by the constant temperature heating tank 202 and foamed by the circulation pump 204, and finally the foam is introduced into the graduated cylinder 102 through the metal pipe.

[0014] In this embodiment, a drain valve 209 for discharging liquid outward is provided at the bottom end of the heating tank. After the experiment is completed, the solution in the device main body 1 can be discharged completely through the drain valve 209, which is convenient for cleaning and the next experiment.

[0015] In this embodiment, the connecting pipelines between the graduated cylinder 102, the liquid flowmeter 103, the constant temperature heating tank 202, the circulation pump 204, the drain valve 209, and the metal conduit 205 are made of rubber material. The rubber material has good corrosion resistance and is not easily corroded by the solution accumulated at the joints.

[0016] In this embodiment, a switch 210 is provided outside the housing 201. The output ends of the switch 210 are respectively connected to the input end of the constant temperature heating tank 202 and the input end of the circulation pump 204. The heating condition of the constant temperature tank and the circulation condition of the circulation pump 204 can be controlled by the switch 210.

[0017] In this embodiment, an opening 208 for the metal conduit 205 to pass through is provided at the top of the housing 201. The metal conduit 205 between the circulation pump 204 and the liquid flowmeter 103 passes through the opening 208.

[0018] In this embodiment, the liquid flowmeter 103 is a common flowmeter device, such as LWGY - liquid flowmeter 103, GY - LDE liquid flowmeter 103, etc.

[0019] In this embodiment, the circulation pump 204 is a common circulation pump 204 device, such as DC30 series, DC40 series circulation pump 204 devices, etc.

[0020] In this embodiment, the control circuit of the present utility model is a common circuit in the circuit field. The device of the present utility model can be connected to an external power source or an internal battery through a power cord to provide electrical energy for the device, which can be achieved by those skilled in the art and will not be elaborated here.

[0021] When the present utility model is specifically implemented: during use, the foaming liquid prepared in a certain proportion is added to the constant temperature heating tank 202 from the upper end of the graduated cylinder 102. The switch 210 is turned on, and the heating element 203 starts to work to heat the foaming liquid. The liquid flowmeter 103 on the metal conduit 205 is adjusted to the flow rate specified in the experiment. The circulation pump 204 causes the foaming liquid to circulate and foam in the device. At the same time, timing starts. The foam is introduced into the graduated cylinder 102 through the nozzle 206 on the metal conduit 205, and this process of circulating and foaming is repeated. After the foam reaches a certain scale on the graduated cylinder 102, the prepared defoaming agent solution is added, and the change law of the foam volume with time is recorded. When the foam volume reaches the specified scale on the graduated cylinder again (the foam scale before adding the defoaming agent solution), the timing is stopped. Through the change of the foam layer height and time, the defoaming rate and foam inhibition rate of the defoaming agent are calculated, so as to obtain a suitable defoaming agent.

[0022] It should be noted that in the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined. In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; the circuits described in the present utility model are all common circuits in the art, and other related components are all commonly used existing components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] For those skilled in the art, it is obvious that the patent of the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the patent of the present utility model, the patent of the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the patent of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the same elements of the claims are intended to be included in the patent of the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A performance testing device for defoamers used in laboratories, comprising a device main body, characterized in that: The device body includes a measuring component for measuring the height of foam or liquid, and a foaming component for foaming the foaming agent. The measuring component is located above the foaming component, and it includes a graduated cylinder for measuring the height of foam and a liquid flowmeter for regulating the flow rate of the foaming liquid. The bottom end of the graduated cylinder is provided with a thread. The foaming component is a hollow outer shell. The top end of the outer shell is provided with a threaded interface that is rotationally fixed to the thread. Inside the outer shell, there is a constant temperature heating tank for heating the foaming liquid and a circulation pump for circulating and foaming the foaming liquid. The bottom end inside the constant temperature heating tank is provided with a heating sheet for heating the constant temperature heating tank. The graduated cylinder, the liquid flowmeter, the constant temperature heating tank, and the circulation pump are connected by metal conduits. The output end of the metal conduit is provided with a nozzle directly above the graduated cylinder. When in use, the foaming liquid is added into the graduated cylinder. The foaming liquid is heated by the constant temperature heating tank, foamed by the circulation pump, and finally the foam is introduced into the graduated cylinder through the metal pipe.

2. The performance testing device for defoamers used in laboratories according to claim 1, wherein: The bottom end of the heating tank is provided with a drain valve for discharging the liquid outward.

3. The performance testing device for defoaming agents used in laboratories according to claim 1, wherein: The connecting pipelines between the graduated cylinder, the liquid flowmeter, the constant temperature heating tank, the circulation pump, the drain valve, and the metal conduit are made of rubber.

4. A performance testing device for defoamers used in laboratories according to claim 1, characterized in that: A switch is provided outside the outer shell. The output end of the switch is respectively connected to the input end of the constant temperature heating tank and the input end of the circulation pump.

5. The performance testing device for defoaming agents used in laboratories according to claim 4, characterized in that: The top end of the outer shell is provided with an opening for the metal conduit to pass through.

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