A precooling defoaming device for a liquid particle counter

Abstract

The present application belongs to the field of oil liquid defoaming equipment design, and particularly relates to a front cooling defoaming device for liquid particle counter. The device can solve the problem that bubbles do not follow when oil liquid falls. The device comprises a storage tank and a defoaming tank connected at the bottom, and a top cover is installed at the upper end of the two; the defoaming tank has an oil liquid cavity, a defoaming structure is installed at the upper end of the oil liquid cavity, a funnel-shaped liquid leakage port is arranged at the middle of the lower end of the oil liquid cavity, and the bottom of the liquid leakage port is connected with the storage tank through a butterfly valve and a pipeline; a heat conduction ring and a heat conduction aluminum plate are arranged around the liquid leakage port from inside to outside, and an electric heating plate is arranged at the lower side of the heat conduction aluminum plate with a certain gap; a plurality of pairs of cooling pipes penetrating into the oil liquid cavity are arranged on the defoaming tank, and each pair of cooling pipes is connected at the inner end to form a loop; the defoaming structure has a plurality of array structures penetrating the cavity from top to bottom, and the contact surface with the oil liquid is rough. The device can filter the bubbles on the surface of the oil liquid with a high probability, and greatly reduces the occurrence of the situation that bubbles affect the subsequent detection structure.

Description

Technical Field

[0001] This invention belongs to the field of oil defoaming equipment design, and particularly relates to a pre-cooling defoaming device for a liquid particle counter. Background Technology

[0002] In hydraulic lubrication systems, the degree of oil contamination directly affects the system's performance and reliability. This necessitates controlling the oil contamination level within the system's permissible range. Automatic liquid particle counters, operating on the principle of optical obscuration, have become a widely accepted primary tool for determining oil contamination levels.

[0003] However, in the process of testing lubricating oil, the equipment used for testing after the oil is discharged needs to undergo defoaming treatment first. The existing technology described in the Chinese invention patent for defoaming oil filters and hydraulic oil tanks (application number: 202110841458X) also employs a structure that increases the surface area for defoaming. However, in actual use, this method is insufficient when the oil has high fluidity, and bubbles may not follow the oil as it falls. Furthermore, this defoaming method inevitably reduces the oil volume significantly during testing, thus affecting the testing structure and failing to meet the requirements of the existing technology. Summary of the Invention

[0004] The purpose of this invention is to provide a pre-cooling and defoaming device for a liquid particle counter, so as to solve the problems in the prior art where the defoaming process affects the subsequent detection results and the backflow of air bubbles in the oil.

[0005] This invention proposes a pre-cooling and defoaming device for a liquid particle counter, comprising a storage tank and a defoaming tank with their bottoms connected, both with top covers mounted on their upper ends; wherein

[0006] The defoaming box has an oil chamber, with a defoaming structure installed at the upper end of the oil chamber. A funnel-shaped drain outlet is located at the lower center of the oil chamber, and the bottom of the drain outlet is connected to a storage tank via a butterfly valve and a pipe. A heat-conducting ring and a heat-conducting aluminum plate are arranged around the drain outlet from the inside out. An electric heating plate is installed at certain intervals on the lower side of the heat-conducting aluminum plate. Several pairs of cooling pipes are also installed on the defoaming box, penetrating into the oil chamber, with each pair of cooling pipes connected at their inner ends to form a circuit.

[0007] The defoaming structure has an array structure of several vertically penetrating cavities, and the contact surface with the oil is rough.

[0008] Advantageously, the pipeline includes a connecting pipe and an auxiliary pipe, with each end of the auxiliary pipe connected to a connecting pipe, and a liquid pump is located in the auxiliary pipe.

[0009] Advantageously, the auxiliary tube also has a through cavity, which is needle-shaped.

[0010] Advantageously, a buffer cavity is also provided between the butterfly valve and the pipeline.

[0011] Advantageously, the defoaming structure adopts a honeycomb structure.

[0012] Advantageously, the cavity interface of the honeycomb structure is polygonal or circular.

[0013] Advantageously, the storage box has a storage compartment.

[0014] Advantageously, protective strips are provided on the upper edges of the storage box and the defoaming box respectively.

[0015] Advantageously, the top cover has a threaded hole on one side of the defoaming chamber for installing a filling pipe or a vacuum pump pipe.

[0016] Advantageously, a two-millimeter gap is left between the heating plate and the heat-conducting aluminum plate.

[0017] Beneficial effects: It can filter bubbles on the surface of the oil with a high probability, and the cooling in the defoaming structure stabilizes the oil bubbles, greatly reducing the possibility of bubbles affecting subsequent detection structures. The heating after the oil is introduced helps to increase the fluidity of high-concentration oil, and the accelerated swirling during heating improves the collection of solid particles during use while increasing fluidity and accelerating the rise of bubbles. The above methods help to enhance the elimination of bubbles during use. In addition, the cooling method helps to retain bubbles, and the combination of vacuuming causes a large number of bubbles to break, thereby reducing oil loss. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in one or more embodiments of this specification or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the pre-cooling defoaming device.

[0020] Figure 2 This is a frontal cross-sectional view of the pre-cooling and defoaming device.

[0021] Figure 3 This is a schematic diagram of the structure viewed from below in a sectional view;

[0022] Figure 4 This is a schematic diagram of a partial honeycomb structure;

[0023] Figure 5 This is a schematic diagram of a partial structure of the cylindrical inner cavity.

[0024] In the diagram: 1. Storage box; 11. Storage compartment; 12. Connecting pipe; 13. Protective baffle; 14. Auxiliary pipe; 15. Liquid pump; 16. Through cavity; 2. Defoaming box; 21. Honeycomb structure; 22. Cooling pipe; 23. Thermally conductive aluminum plate; 24. Heating plate; 25. Thermally conductive ring; 26. Leakage port; 27. Butterfly valve; 28. Buffer chamber; 3. Top cover; 31. Threaded hole Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments. It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] Example 1:

[0027] like Figure 1-3 The pre-cooling and defoaming device for the liquid particle counter shown includes a storage tank 1 and a defoaming tank 2 fixedly installed on one side thereto. The storage tank 1 and the defoaming tank 2 are interconnected at the bottom by a connecting pipe 12 and an auxiliary pipe 14.

[0028] The storage box 1 has a storage compartment 11 inside.

[0029] The defoaming chamber 2 has an oil cavity, which is connected to a cooling pipe 22 that runs through the chamber. Cooling water is introduced into the oil cavity through the cooling pipe 22. A defoaming structure is provided on the upper side of the oil cavity, and a heating component is provided on the lower side.

[0030] The oil in the oil chamber is heated by a heating assembly, which includes an annular heat-conducting aluminum plate 23 and an annular heating plate 24. The heat-conducting aluminum plate 23 is located on the lower outer edge of the annular cavity, and the heating plate 24 is located below the heat-conducting aluminum plate 23. The heating plate 24 is installed around the heat-conducting ring 25, with a two-millimeter gap between the heating plate 24 and the heat-conducting aluminum plate 23. The heating assembly has a heat-conducting ring 25 at its center, which conducts heat to the drain outlet 26 of the defoaming tank 2, further improving its heat conduction efficiency.

[0031] The defoaming box 2 has a leakage port 26 at the center of its interior.

[0032] The defoaming chamber 2 has cooling pipes 22 running through its inner and outer sides. Each cooling pipe 22 is a group of two, with a surrounding pipe installed at its inner end. The surrounding pipe forms a complete circuit between the two cooling pipes 22 in each group. The cooling pipes 22 are used to pass cooling water to effectively cool the internal oil.

[0033] In actual use, the cooling pipe 22 can also play an auxiliary role in flushing the material. It keeps the detection chamber for volatile liquids in a closed environment. Moreover, when the heating chamber is stirred to increase its volatility, it is not easy to heat it. Instead, the equipment is placed in a low-temperature environment, and the liquid to be tested is injected into the chamber through the cooling pipe 22 in a spiral shape, which reduces the possibility of its evaporation. At the same time, due to the spiral flushing, the liquid rotates inside, which enhances its effect on the detection results.

[0034] The drain outlet 26 is used to collect solid particles in the oil during use, preventing them from accumulating on the outside and allowing them to gather more easily towards the center. This avoids loss of the test medium in the oil during defoaming, which could affect the measurement structure and further enhance the accuracy of the test. The lower side of the drain outlet 26 is connected to the connecting pipe 12.

[0035] The auxiliary pipe 14 includes a liquid pump 15, and the auxiliary pipes 14 on both sides of the liquid pump 15 are also provided with through cavities 16, which are needle-shaped structures. The needle-shaped structure of the through cavity 16 facilitates effective extraction during use and makes it easy to observe the internal oil condition.

[0036] The storage tank 1 and the defoaming tank 2 are equipped with top covers 3 on their upper surfaces. Each top cover 3 has a threaded hole 31 corresponding to the location of the defoaming tank 2. The threaded hole 31 is used to install an injection pipe or a vacuum pump pipe. Because two sets of threaded holes 31 are provided, they need to be used in conjunction. Firstly, when injecting oil into the interior, one threaded hole 31 needs to be closed; secondly, when evacuating the interior, the corresponding threaded hole 31 needs to be closed. This operation helps the equipment operate effectively.

[0037] Protective strips 13 are provided at the corresponding edges of the upper surfaces of storage box 1 and defoaming box 2 to prevent leakage during use.

[0038] Example 2:

[0039] Based on Embodiment 1, the defoaming box 2 further includes a buffer chamber 28, which is located below the drain outlet 26 and is used to discharge the defoamed oil. A butterfly valve 27 is installed on the pipe passage at the top of the buffer chamber 28, and the output end of the buffer chamber 28 is connected to the auxiliary pipe 14 through the connecting pipe 12.

[0040] Example 3:

[0041] The defoaming structure is a honeycomb structure 21. During use, its surface cooling efficiency increases, and when its surface is roughened, its ability to adsorb bubbles is enhanced, further aiding in the adsorption of small bubbles.

[0042] Example 4:

[0043] like Figure 4 and Figure 5 As shown, the defoaming structure has an array of cavities that run vertically through it, and the contact surface between the defoaming structure and the oil is rough. The interface of the cavity unit can be polygonal or circular.

[0044] Among them, the cylindrical inner cavity 29 has a surface cooling efficiency that is close to that of the honeycomb structure when in use, and when it is set as a rough surface, its adsorption effect on bubbles is more conducive to the adsorption of large bubbles when in use.

[0045] Working principle: With the defoaming structure in place, air bubbles on the surface of the oil can be filtered with a high probability. The defoaming structure also cools the oil bubbles, stabilizing them and greatly reducing the possibility of bubbles affecting subsequent detection. The heating after the oil is introduced helps to increase the fluidity of high-concentration oil. The heating also accelerates the swirling flow, which helps to better collect solid particles during use and increases the fluidity to accelerate the rise of air bubbles.

Claims

1. A pre-cooling and defoaming device for a liquid particle counter, characterized in that: This includes a storage box (1) and a defoaming box (2) connected at the bottom, both with a top cover (3) installed at the top; wherein The defoaming box (2) has an oil chamber, a defoaming structure is installed at the upper end of the oil chamber, and a funnel-shaped drain outlet (26) is located at the middle of the lower end of the oil chamber. The bottom of the drain outlet (26) is connected to the storage box (1) through a butterfly valve (27) and a pipe. A heat-conducting ring (25) and a heat-conducting aluminum plate (23) are arranged from the inside to the outside around the drain outlet (26). A heating plate (24) is installed at a certain gap on the lower side of the heat-conducting aluminum plate (23). Several pairs of cooling pipes (22) are also provided on the defoaming box (2) to penetrate into the oil chamber. Each pair of cooling pipes (22) is connected at the inner end to form a loop. The defoaming structure has an array structure of several vertically penetrating cavities, and the contact surface with the oil is rough.

2. The pre-cooling defoaming device according to claim 1, characterized in that: The pipeline includes a connecting pipe (12) and an auxiliary pipe (14), with a connecting pipe (12) connected to each end of the auxiliary pipe (14), and a liquid pump (15) is located in the auxiliary pipe (14).

3. The pre-cooling defoaming device according to claim 2, characterized in that: The auxiliary tube (14) also has a through cavity (16) which is needle-shaped.

4. The pre-cooling defoaming device according to claim 1, characterized in that: A buffer chamber (28) is also provided between the butterfly valve (27) and the pipeline.

5. The pre-cooling defoaming device according to claim 1, characterized in that: The defoaming structure adopts a honeycomb structure (21).

6. The pre-cooling defoaming device according to claim 5, characterized in that: The cavity interface of the honeycomb structure (21) is polygonal or circular.

7. The pre-cooling defoaming device according to claim 1, characterized in that: The storage box (1) has a storage compartment (11).

8. The pre-cooling defoaming device according to claim 1, characterized in that: Protective baffles (13) are provided on the upper edge of the storage box (1) and the defoaming box (2).

9. The pre-cooling defoaming device according to claim 1, characterized in that: The top cover (3) has a threaded hole (31) on one side of the defoaming box (2) for installing the injection pipe or the vacuum pump pipe.

10. The pre-cooling defoaming device according to claim 1, characterized in that: A two-millimeter gap is left between the electric heating plate (24) and the heat-conducting aluminum plate (23).

Images