Test tube device for testing demulsification degree

Abstract

The utility model discloses a test tube device for testing demulsification degree in the field of test tube cleaning, which comprises a liquid injection component and a liquid injection component, the liquid injection component comprises a liquid injection box, the liquid injection box is connected with a switching valve through a pipeline, and the switching valve is connected with a liquid injection pump through a pipeline; the liquid discharging assembly comprises a three-way valve, the three-way valve is connected with a fan and a liquid discharging pump through pipelines, and the liquid discharging pump is connected with the waste liquid box; the test tube comprises a liquid injection branch tube connected with the liquid injection assembly, a liquid drainage branch tube connected with the liquid drainage assembly and a sealing cover located at the top of the test tube. The cleaning device has the advantages that automatic cleaning of the test tube can be completed through the cleaning device, rapid connection of the liquid injection channel can be completed through matching of the connector on the switching valve and the pipeline, the sealing performance of the connector is guaranteed, and meanwhile the bypass opening is formed, so that the cleaning effect is improved. The residual solvent in the liquid injection branch pipe can be completely discharged in the channel switching process of the switching valve, and the situation that the cleaning effect is affected due to the fact that the solvent is mixed is avoided.

Description

Technical Field

[0001] The utility model relates to the field of test tube cleaning, in particular to a test tube device for demulsification degree testing. Background Art

[0002] The ability of an oil-water emulsion to separate into two phases after formation is called demulsification degree, which reflects the ability of turbine oil to separate from water. If the demulsification performance is strong, the oil-water emulsion can be quickly separated in the fuel tank. On the contrary, the separation of the oil-water emulsion is slow, which will cause oil film damage, corrosion of metal parts, accelerated oil aging, etc., and then increase the friction between components, cause overheating, and even lead to equipment damage.

[0003] In order to find an emulsion with good demulsification performance, it is necessary to continuously conduct demulsification degree tests. Therefore, a comprehensive cleaning of the test tubes used for testing is a very important link in the test. During the test tube cleaning process, various cleaning liquids need to be injected in sequence to remove the residual emulsion. This method is not only time-consuming and laborious, but also has low cleaning efficiency and is prone to mixing of various cleaning liquids, greatly reducing the cleaning effect.

[0004] There are also some devices that can automatically clean test tubes. However, since there are many types of solvents required for cleaning test tubes, multiple liquid injection pipes will be connected to the test tubes, resulting in an increased risk of leakage. At the same time, it will also increase the difficulty of test tube cleaning. In order to reduce the pipes connected to the test tubes, multiple liquid injection pipes can be combined, and a switching valve can be set at the intersection of the pipes to facilitate the control of the input amount of the cleaning agent. However, during the process of switching the pipes through the switching valve, the pipes are in a closed state, and the cleaning agent in the pipes cannot be drained in time by the water pump, which will be mixed with the next cleaning agent, causing cross-contamination and affecting the cleaning effect of the cleaning agent. Summary of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the application, to avoid obscuring the purpose of this part, the abstract, and the title. Such simplifications or omissions shall not be used to limit the scope of the utility model.

[0006] In view of the problems existing in the above-mentioned prior art, the utility model is proposed.

[0007] Therefore, the technical problem to be solved by the utility model is how to avoid the mixing of cleaning agents during the process of switching pipes.

[0008] To solve the above technical problems, the present utility model provides the following technical solutions: A test tube device for demulsification degree testing, comprising a liquid injection assembly, including a liquid injection tank, the liquid injection tank is connected to a switching valve through a pipeline, and the switching valve is connected to a liquid injection pump through a pipeline; a liquid discharge assembly, including a three-way valve, the three-way valve is respectively connected to a blower and a liquid discharge pump through pipelines, and the liquid discharge pump is connected to a waste liquid tank; a test tube, including a liquid injection branch pipe connected to the liquid injection assembly, a liquid discharge branch pipe connected to the liquid discharge assembly, and a sealing cover located at the top of the test tube.

[0009] As a preferred embodiment of the test tube device and method for demulsification degree testing of the present utility model, wherein: the liquid injection tank is divided into three storage chambers by a partition, and each storage chamber is provided with a liquid outlet.

[0010] As a preferred embodiment of the test tube device and method for demulsification degree testing of the present utility model, wherein: the outer wall of one end of the pipeline is evenly provided with installation grooves in a circumferential manner.

[0011] As a preferred embodiment of the test tube device and method for demulsification degree testing of the present utility model, wherein: the switching valve includes a valve body, a valve core, and an interface fixedly connected to the valve body.

[0012] As a preferred embodiment of the test tube device and method for demulsification degree testing of the present utility model, wherein: the valve body is provided with a bypass port, a receiving groove is provided at the bottom of the bypass port, the receiving groove is communicated with an arc-shaped groove, an arc-shaped spring is arranged in the arc-shaped groove, and an actuator is further connected to the valve body.

[0013] As a preferred embodiment of the test tube device and method for demulsification degree testing of the present utility model, wherein: a right-angle channel is provided in the valve core, a branch is provided on the right-angle channel, and an elastic member is provided below the branch.

[0014] As a preferred embodiment of the test tube device and method for demulsification degree testing of the present utility model, wherein: there are a total of four interfaces, the included angle between adjacent interfaces is 90 degrees, three of the interfaces are on the same circumferential line, a limiting ring is provided on the outer wall of the interface, a spring is fixedly connected to the limiting ring, a plurality of spherical grooves are evenly provided on the outer wall of the interface, locking beads are embedded in the spherical grooves, and an installation sleeve is sleeved on the interface. The inner wall of the installation sleeve is successively provided with an unlocking groove, a convex platform, and a groove.

[0015] As a preferred embodiment of the test tube device and method for demulsification degree of the present utility model, the following is provided: A rotation switch is arranged in the accommodation groove. The rotation switch includes a fixed plate and a rotating ring rotatably connected to the fixed plate. A through hole is formed in the fixed plate, and a plurality of rotating columns are uniformly arranged along the outer edge of the through hole. A hinge is rotatably connected to the rotating column, and a locking tooth is arranged at one end of the hinge. Arc-shaped teeth are arranged at equal intervals on the inner side of the rotating ring, and a movable rod is arranged on the outer side of the rotating ring. The movable rod extends into the arc-shaped groove.

[0016] As a preferred embodiment of the test tube device and method for demulsification degree of the present utility model, the following is provided: An air vent is formed in the sealing cover, and a stirring paddle is fixedly connected to the sealing cover. The stirring paddle is driven by a motor.

[0017] As a preferred embodiment of the test tube device and method for demulsification degree of the present utility model, the following is provided: A cleaning liquid, distilled water, and petroleum ether are respectively injected into the storage chamber.

[0018] The beneficial effects of the present utility model are as follows: The cleaning device can automatically clean the test tube. Through the cooperation of the interfaces on the switching valve and the pipelines, the rapid connection of the liquid injection channel can be achieved, and the sealing performance at the interfaces can be ensured. At the same time, by setting a bypass port, the residual solvent in the liquid injection branch pipe can be completely discharged during the process of the switching valve switching channels, avoiding the mixing of solvents and affecting the cleaning effect. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0020] Figure 1 It is a schematic structural diagram of a test tube device for demulsification degree test provided by the present utility model;

[0021] Figure 2 It is a schematic structural diagram of a liquid injection assembly of a test tube device for demulsification degree test provided by the present utility model;

[0022] Figure 3 It is a schematic cross-sectional structural diagram of a switching valve of a test tube device for demulsification degree test provided by the present utility model;

[0023] Figure 4 It is a schematic structural diagram of a valve core of a test tube device for demulsification degree test provided by the present utility model;

[0024] Figure 5Schematic cross-sectional structure diagram of the bypass port in the closed state of a test tube device for demulsification degree testing provided by the present utility model;

[0025] Figure 6 Schematic structure diagram of the conversion switch in the closed state of a test tube device for demulsification degree testing provided by the present utility model;

[0026] Figure 7 Schematic cross-sectional structure diagram of the bypass port in the connected state of a test tube device for demulsification degree testing provided by the present utility model;

[0027] Figure 8 Schematic structure diagram of the conversion switch in the open state of a test tube device for demulsification degree testing provided by the present utility model;

[0028] Figure 9 Schematic structure diagram of the liquid discharge assembly of a test tube device for demulsification degree testing provided by the present utility model;

[0029] Figure 10 Schematic diagram of the cleaning process of a test tube device for demulsification degree testing provided by the present utility model. Detailed implementation manners

[0030] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be made in conjunction with the accompanying drawings of the specification.

[0031] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0032] Secondly, the present utility model will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally out of the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0033] Furthermore, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0034] Embodiment 1

[0035] Refer toFigure 1 , this embodiment provides a test tube device for demulsification degree testing, including a liquid injection assembly 100, which includes a liquid injection tank 101. The liquid injection tank 101 is connected to a switching valve 103 through a pipeline 102, and the switching valve 103 is connected to a liquid injection pump 104 through a pipeline 102; a liquid discharge assembly 200, which includes a three-way valve 201. The three-way valve 201 is respectively connected to a fan 202 and a liquid discharge pump 203 through a pipeline 102, and the liquid discharge pump 203 is connected to a waste liquid tank 204; a test tube 300, which includes a liquid injection branch pipe 301 connected to the liquid injection assembly 100, a liquid discharge branch pipe 302 connected to the liquid discharge assembly 200, and a sealing cover 303 located at the top of the test tube 300.

[0036] Specifically, the liquid injection tank 101 stores three kinds of liquids for cleaning the test tube 300, namely cleaning liquid, distilled water, and petroleum ether, and each kind of liquid is stored in a specific position of the liquid injection tank 101 from left to right in sequence.

[0037] Preferably, both the switching valve 103 and the three-way valve 201 are controlled by an external control unit. Through the control of the control unit, different pipelines in the test tube device can be connected, which can not only inject different liquids into the test tube 300 and discharge the cleaned liquid, but also complete the rapid drying of the test tube 300, reducing the influence of the residual liquid in the test tube 300 on the next test result.

[0038] Furthermore, the waste liquid tank 204 can recycle the waste liquid discharged from the test tube 300 to avoid environmental pollution caused by direct discharge of the waste liquid. When the waste liquid tank 204 is full, the waste liquid is transferred through the discharge port on the waste liquid tank 204.

[0039] By setting this device, the automatic cleaning and drying of the test tube can be completed. At the same time, it can also avoid the weakening of the cleaning effect caused by the mixing of various solvents, and greatly improve the cleaning effect and cleaning efficiency compared with manual cleaning.

[0040] Embodiment 2

[0041] Refer to Figures 2 - 9, which is the second embodiment of the present utility model. This embodiment is based on the previous embodiment, and the differences from the previous embodiment are as follows: The liquid injection tank 101 is divided into three storage chambers 101b by a partition 101a, and each storage chamber 101b is provided with a liquid outlet 101c; The outer wall of one end of the pipeline 102 is evenly provided with installation grooves 102a in a circumferential manner; The switching valve 103 includes a valve body 103a, a valve core 103b, and an interface 103c fixedly connected to the valve body 103a; The valve body 103a is provided with a bypass port 103a-1, and a receiving groove 103a-2 is provided at the bottom of the bypass port 103a-1. The receiving groove 103a-2 communicates with an arc-shaped groove 103a-3, and an arc-shaped spring 103a-4 is provided in the arc-shaped groove 103a-3. An actuator 103a-5 is also connected to the valve body 103a; A right-angle channel 103b-1 is provided in the valve core 103b, a branch 103b-2 is provided on the right-angle channel 103b-1, and an elastic member 103b-3 is provided below the branch 103b-2; There are a total of four interfaces 103c, and the included angle between adjacent interfaces 103c is 90 degrees. Three of the interfaces 103c are on the same circumference. A limiting ring 103c-1 is provided on the outer wall of the interface 103c, a spring 103c-2 is fixedly connected to the limiting ring 103c-1, and a number of spherical grooves 103c-3 are evenly provided on the outer wall of the interface 103c. Lock beads 103c-4 are embedded in the spherical grooves 103c-3. An installation sleeve 103d is sleeved on the interface 103c, and an unlocking groove 103d-1, a convex platform 103d-2, and a groove 103d-3 are successively provided on the inner wall of the installation sleeve 103d; A rotating switch 105 is provided in the receiving groove 103a-2. The rotating switch 105 includes a fixing plate 105a and a rotating ring 105b rotatably connected to the fixing plate 105a. A through hole 105a-1 is provided on the fixing plate 105a, a number of rotating columns 105a-2 are evenly arranged along the outer edge of the through hole 105a-1, a hinge 105c is rotatably connected to the rotating column 105a-2, a tooth 105c-1 is provided at one end of the hinge 105c, arc-shaped teeth 105b-1 are arranged at equal intervals on the inner side of the rotating ring 105b, and a movable rod 105b-2 is provided on the outer side of the rotating ring 105b. The movable rod 105b-2 extends into the arc-shaped groove 103a-3; The sealing cover 303 is provided with a ventilation hole 303a, and a stirring paddle 303b is fixedly connected to the sealing cover 303. The stirring paddle 303b is driven by a motor 303c.

[0042] Specifically, the three interfaces 103c on the same circumference of the switching valve 103 are input ports, and the liquid outlet 101c and the three input ports are connected through the pipeline 102. The remaining one interface 103c on the switching valve 103 is an output port, which is connected to the liquid injection pump 104 through the pipeline 102.

[0043] Preferably, the locking bead 103c-4 is embedded in the spherical groove 103c-3. The installation groove 102a on the pipeline 102 is in shape fit with the locking bead 103c-4. Before the pipeline 102 is connected to the interface 103c, first move the installation sleeve 103d. When the installation sleeve 103d moves, it will compress the spring 103c-2. When the spring 103c-2 is completely compressed, the spherical groove 103c-3 communicates with the unlocking groove 103d-1. At this time, insert the pipeline 102 into the interface 103c. The locking bead 103c-4 will be pushed into the unlocking groove 103d-1, and the installation groove 102a just communicates with the spherical groove 103c-3. Then release the installation sleeve 103d. Under the restoring force of the spring 103c-2, the installation sleeve 103d returns to its initial position and presses the locking bead 103c-4 back into the spherical groove 103c-3. And at this time, the boss 103d-2 blocks the spherical groove 103c-3, the position of the locking bead 103c-4 is fixed, and the bottom of the locking bead 103c-4 just fits into the installation groove 102a. The pipeline is fixed by the locking bead 103c-4, and the quick connection between the pipeline 102 and the interface 103c is completed.

[0044] When all components of the liquid injection assembly 100 are connected, the liquid outlet on each storage chamber 101b is connected to the three interfaces 103c serving as input ports on the switching valve 103 through pipelines 102 to form three liquid injection paths. The interface 103c serving as the outlet of the switching valve 103 is also connected to the liquid injection branch pipe 301 of the test tube 300 through a pipeline 102. A liquid injection pump 104 is also provided on this pipeline 102, which can quickly inject the cleaning agent in the storage chamber 101b into the test tube 300. The actuator 103a-5 of the switching valve 103 can drive the rotating shaft 103b-4 to rotate, thereby driving the valve core 103b to rotate. The actuator 103a-5 is also controlled by the control unit.

[0045] Furthermore, one end of the right-angle channel 103b-1 is always in communication with the interface 103c serving as the outlet. When the actuator 103a-5 drives the valve core 103b to rotate, the other end of the right-angle channel 103b-1 is continuously in communication with the three interfaces 103c serving as input ports, forming three different liquid injection channels, which can inject different cleaning agents into the test tube 300.

[0046] Further, the bypass port 103a-1 is disposed between two interfaces 103c that serve as input ports, and the diameter of the bypass port 103a-1 is the same as that of the branch 103b-2. The rotary switch 105 within the bypass port 103a-1 is used to control the opening and closing of the bypass port 103a-1. The through-hole 105a-1 on the rotary switch 105 is initially blocked by the hinge 105c, keeping the bypass port 103a-1 in a closed state. By toggling the movable rod 105b-2 to drive the rotary ring 105b to rotate, since the teeth 105c-1 on the hinge 105c mesh with the arc-shaped teeth 105b-1 on the rotary ring 105b, the rotation of the rotary ring 105b will drive the hinge 105c to rotate around the rotary column 105a-2. During the rotation of the hinge 105c, the through-hole 105a-1 will be gradually opened, putting the bypass port 103a-1 in an open state. When the valve core 103b rotates between the two interfaces 103c, the open bypass port 103a-1 communicates with the branch 103b-2.

[0047] Specifically, after a cleaning agent is injected into the test tube 300, the liquid injection channel is closed, and the stirring paddle 303b is continuously stirred by the motor 303c to make the cleaning agent come into full contact with the inner wall of the test tube 300, removing the impurities adhering to the inner wall of the test tube 300. Then, the waste liquid after cleaning is completely drained through the liquid discharge assembly 200, and then the liquid injection channel is opened to inject the next cleaning agent into the test tube 300.

[0048] In a general cleaning device, to prevent the leakage of the cleaning agent, it is necessary to ensure the sealing performance of the switching valve 103. When the switching valve 103 connects the liquid injection channel, after injecting enough cleaning agent into the test tube 300 through the liquid injection pump 104, the liquid injection channel is closed. At this time, the liquid injection channel is filled with this cleaning agent, and due to the good sealing performance of the switching valve 103, the cleaning agent in the sealed pipeline cannot be completely pumped out only by the liquid injection pump, and there will be some cleaning agent remaining in the liquid injection channel. When the switching valve 103 opens the liquid injection channel again, another cleaning agent will be introduced, resulting in cross-mixing of the cleaning agents, which is very likely to affect the original performance of the cleaning agent, leading to poor cleaning effect of the test tube 300 and affecting the next test result.

[0049] In this embodiment, when the switching valve 103 closes the liquid injection channel, the liquid injection channel will also be filled with cleaning agent. However, during the process of the valve core 103b rotating 45 degrees, the right-angle channel 103b-1 is no longer connected to the interface 103c. The elastic member 103b-3 on the valve core 103b gradually approaches the arc-shaped groove 103a-3, and under the elastic force of the elastic member 103b-3, it is embedded into the arc-shaped groove 103a-3. During the continuous rotation of the valve core 103b, the elastic member 301b-3 will push the movable rod 105b-2, and through the rotation of the movable rod 105b-2, the bypass port 103a-1 is opened until the bypass port 103a-1 is completely opened. At this time, the bypass port 103a-1 just communicates with the branch 103b-2, and at this time, the liquid injection channel communicates with the outside. Through the liquid injection pump 104, the remaining cleaning agent can be completely drained to prevent the mixing of cleaning agents. When the test tube 300 is cleaned with a cleaning agent and another cleaning agent needs to be introduced, since the elastic member 103b-3 has moved to the end of the arc-shaped groove 103a-3, when the valve core 103b is rotated continuously at this time, the elastic member 103b-3 is continuously squeezed until it is pressed back into the valve core 103b. The movable rod 105b-2 returns to its original position under the action of the arc-shaped spring 103a-4, and the rotary switch 105 closes the bypass port 103a-1 again to ensure the sealing performance of the switching valve 103.

[0050] By providing the bypass port 103a-1 and the rotary switch 105, the remaining cleaning agent can be drained during the process of the switching valve 103 changing the liquid injection channel, preventing the mixing of multiple cleaning agents from affecting the cleaning effect.

[0051] Embodiment 3

[0052] Refer to Figure 10 This is the third embodiment of the present utility model. This embodiment provides a cleaning method for a test tube device for measuring the demulsification degree. This embodiment is based on the previous embodiment, and the difference from the previous embodiment is that each storage chamber 101b in the liquid injection tank 101 stores different cleaning agents, including cleaning liquid, distilled water, and petroleum ether. The outlets of each storage chamber 101b are connected to the switching valve 103 through pipelines 102, and the flow of different cleaning agents is controlled by the switching valve 103.

[0053] Specifically, the interface of the three-way valve 201 has the same structure as the interface 103c of the switching valve 103, which can improve the connection efficiency between the pipeline 102 and the three-way valve 201. The volume of the test tube 300 is 100 ml.

[0054] Cleaning process of the test tube device:

[0055] 1. Control the switching valve 103 to open the liquid injection channel of the cleaning solution, start the liquid injection pump 104, and inject the cleaning solution in the liquid injection tank 101 into the test tube 300. After injecting 80 ml of the cleaning solution, close the liquid injection channel through the switching valve 103;

[0056] 2. Drive the stirring paddle 303b to stir for 2 minutes by the motor 303c to make the cleaning solution fully contact the inner wall of the test tube 300;

[0057] 3. Open the liquid discharge channel through the three-way valve 201, start the liquid discharge pump 203, discharge the used cleaning solution in the test tube 300 into the waste liquid tank 204, and then close the liquid discharge channel;

[0058] 4. Open the liquid injection channel of distilled water through the switching valve 103, start the liquid injection pump 104, inject 80 ml of distilled water into the test tube 300, and stir for 2 minutes by the stirring paddle 303b;

[0059] 5. Open the liquid discharge channel through the three-way valve 201, start the liquid discharge pump 203, discharge the used distilled water in the test tube 300 into the waste liquid tank 204, and then close the liquid discharge channel;

[0060] 6. Open the liquid injection channel of petroleum ether through the switching valve 103, start the liquid injection pump 104, inject 80 ml of petroleum ether into the test tube 300, and stir for 2 minutes by the stirring paddle 303b;

[0061] 7. Open the liquid discharge channel through the three-way valve 201, start the liquid discharge pump 203, discharge the used petroleum ether in the test tube 300 into the waste liquid tank 204, and then close the liquid discharge channel;

[0062] 8. Finally, open the drying channel through the three-way valve 201, start the blower 202 to introduce dry hot air at 54 °C into the test tube 300, and continue for 5 minutes to completely dry the test tube and complete the cleaning of the test tube.

[0063] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, changes in color, orientation, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structures that perform the recited function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0064] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of implementing the present utility model or those features that are not relevant to the implementation of the present utility model).

[0065] It should be understood that in the development of any actual implementation, as in any engineering or design project, a large number of specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without excessive experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A test tube device for testing demulsification degree, characterized in that: include, The liquid injection assembly (100) comprises a liquid injection box (101), wherein the liquid injection box (101) is connected to a switching valve (103) via a pipeline (102), and the switching valve (103) is connected to a liquid injection pump (104) via the pipeline (102); The liquid discharge assembly (200) comprises a three-way valve (201), wherein the three-way valve (201) is respectively connected to a fan (202) and a liquid discharge pump (203) via a pipeline (102), and the liquid discharge pump (203) is connected to a waste liquid tank (204); The test tube (300) comprises a liquid injection branch pipe (301) connected to the liquid injection component (100), a liquid discharge branch pipe (302) connected to the liquid discharge component (200), and a sealing cover (303) located at the top of the test tube (300).

2. The test tube device for testing demulsification degree according to claim 1, characterized in that: The liquid injection box (101) is divided into three storage chambers (101b) by a partition (101a), and each of the storage chambers (101b) is provided with a liquid outlet (101c).

3. The test tube device for testing demulsification degree according to claim 2, characterized in that: The outer wall of one end of the pipeline (102) is evenly provided with a mounting groove (102a).

4. The test tube device for testing demulsification degree according to claim 3, characterized in that: The switching valve (103) comprises a valve body (103a), a valve core (103b), and an interface (103c) fixedly connected to the valve body (103a).

5. The test tube device for testing demulsification degree according to claim 4, characterized in that: The valve body (103a) is provided with a bypass port (103a-1), a receiving groove (103a-2) is provided at the bottom of the bypass port (103a-1), the receiving groove (103a-2) is communicated with the arc groove (103a-3), an arc spring (103a-4) is provided in the arc groove (103a-3), and the valve body (103a) is also connected to an actuator (103a-5).

6. The test tube device for testing demulsification degree according to claim 5, characterized in that: A right-angle channel (103b-1) is provided in the valve core (103b), a branch (103b-2) is provided on the right-angle channel (103b-1), an elastic member (103b-3) is provided below the branch (103b-2), and the valve core (103b) is connected to the actuator (103a-5) via a rotating shaft (103b-4).

7. The test tube device for testing demulsification degree according to claim 6, characterized in that: There are four interfaces (103c) in total, and the angle between adjacent interfaces (103c) is 90 degrees, wherein three interfaces (103c) are located on the same circumference line, and the outer wall of the interface (103c) is provided with a limit ring (103c-1), and the limit ring (103c-1) is fixedly connected with a spring (103c-2), and the outer wall of the interface (103c) is also evenly provided with a plurality of spherical grooves (103c-3), and the spherical grooves (103c-3) are embedded with locking beads (103c-4), and the interface (103c) is sleeved with a mounting sleeve (103d), and the inner wall of the mounting sleeve (103d) is sequentially provided with an unlocking groove (103d-1), a boss (103d-2) and a groove (103d-3).

8. The test tube device for testing demulsification degree according to claim 7, characterized in that: A rotary switch (105) is arranged in the accommodating groove (103a-2), and the rotary switch (105) comprises a fixed plate (105a) and a rotary ring (105b) rotatably connected to the fixed plate (105a); a through hole (105a-1) is opened on the fixed plate (105a); a plurality of rotary columns (105a-2) are evenly arranged on the outer edge of the through hole (105a-1); a hinge (105c) is rotatably connected to the rotary column (105a-2); a latching tooth (105c-1) is arranged at one end of the hinge (105c); arc-shaped teeth (105b-1) are equidistantly arranged on the inner side of the rotary ring (105b); a movable rod (105b-2) is arranged on the outer side of the rotary ring (105b); and the movable rod (105b-2) extends into the arc-shaped groove (103a-3).

9. The test tube device for testing demulsification degree according to claim 8, characterized in that: The sealing cover (303) is provided with a vent hole (303a), and a stirring paddle (303b) is fixedly connected to the sealing cover (303), and the stirring paddle (303b) is driven by a motor (303c).

10. The test tube device for testing demulsification degree according to claim 2, characterized in that: Cleaning liquid, distilled water and petroleum ether are respectively injected into the storage chamber (101b).

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