Pneumatic diaphragm pump for defoaming

Abstract

The utility model relates to the technical field of defoaming diaphragm pumps, and discloses a pneumatic diaphragm pump for defoaming, which comprises a pneumatic diaphragm pump main body and defoaming diaphragms, and the two defoaming diaphragms are correspondingly arranged in two defoaming cavities of the pneumatic diaphragm pump main body. According to the pneumatic diaphragm pump, the defoaming diaphragms are arranged in the two defoaming cavities of the pneumatic diaphragm pump body, the defoaming and filtering effects are achieved, the cleaning assembly can be driven by operating the waterproof driving motor, foam impurities accumulated on the defoaming diaphragms are scraped off, the foam impurities are filtered through the defoaming backflow box, and then the backflow pipe is matched with the micro pump body to conduct circulating defoaming. The defoaming isolation plate extrudes large foams, then the defoaming fan machine cuts the large foams and conducts high-quality defoaming on the foams, so that the device has the self-cleaning capacity, the foams are not prone to adhering and accumulating at the position of the diaphragm, the diaphragm can keep high-quality defoaming, the auxiliary foam removing capacity is good, and the foam removing quality is high.

Description

Technical Field

[0001] This utility model relates to the field of defoaming diaphragm pump technology, specifically a pneumatic diaphragm pump for defoaming. Background Technology

[0002] In many industrial production processes, such as chemical, pharmaceutical, food processing, papermaking, and wastewater treatment, the transportation and handling of liquid materials containing foam are often involved. In the chemical industry, many chemical reactions produce a large amount of foam. This foam may lead to inaccurate liquid level measurement in reaction vessels, thereby affecting the precise control of reaction conditions, and may even cause material overflow, resulting in safety accidents and material waste. When using diaphragm pumps, defoaming operations can be performed inside the diaphragm pump.

[0003] When defoaming, pneumatic diaphragm pumps typically rely on their internal diaphragm for defoaming. This allows the pump to simultaneously pressurize and guide the flow while defoaming the internal liquid. However, in actual production, existing diaphragms often experience foam buildup and blockage due to the strong adhesiveness of the foam, requiring manual removal. This increases maintenance costs and downtime, affecting defoaming and flow quality. Furthermore, their self-cleaning ability is relatively insufficient, and auxiliary defoaming is inadequate, resulting in poor overall foam removal quality. Therefore, we propose a pneumatic diaphragm pump for defoaming to address these issues. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a pneumatic diaphragm pump for defoaming, which has self-cleaning capabilities, prevents foam from adhering and accumulating on the diaphragm, maintains high-quality defoaming, and has good auxiliary foam removal capabilities and high foam removal quality.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pneumatic diaphragm pump for defoaming, comprising a pneumatic diaphragm pump body and a defoaming diaphragm, wherein the two defoaming diaphragms are respectively installed in two defoaming chambers of the pneumatic diaphragm pump body;

[0008] The bottom of the main body of the pneumatic diaphragm pump is connected to two defoaming return boxes. Each of the two defoaming chambers of the main body of the pneumatic diaphragm pump is equipped with a cleaning component and a waterproof drive motor. The two cleaning components are attached to the opposite sides of the two defoaming diaphragms. The two defoaming return boxes are located directly below the two cleaning components.

[0009] The waterproof drive motor can drive the cleaning components to rotate. The bottom of the defoaming return box is equipped with a return pipe and a micro pump body. The bottom ends of the two return pipes are respectively connected to the two feed pipes of the pneumatic diaphragm pump body. The pump inlet pipe of the pneumatic diaphragm pump body is equipped with a defoaming control component.

[0010] Preferably, the defoaming control component includes an installation end, a defoaming isolation plate, and a defoaming fan. The installation end is fixed to the pump inlet pipe of the pneumatic diaphragm pump body. The defoaming isolation plate and the defoaming fan are both installed on the inner side of the installation end, and the defoaming fan is correspondingly installed between the defoaming isolation plate and the pneumatic diaphragm pump body.

[0011] Preferably, the defoaming isolation plate is provided with defoaming guide holes arranged at equal intervals, and the defoaming fan is installed on the side of the defoaming isolation plate accordingly. The defoaming fan is a waterproof fan.

[0012] Preferably, the mounting end coupling is installed at the pump inlet pipe of the pneumatic diaphragm pump body, and the defoaming isolation plate is circular and fitted to the inner side of the mounting end.

[0013] Preferably, the cleaning assembly includes a support plate, a drive column, and a cleaning scraper brush. The two support plates are respectively installed in the two defoaming chambers of the pneumatic diaphragm pump body. The drive column is rotatably connected to the two support plates. The cleaning scraper brush is evenly distributed in a ring at one end of the drive column. The other end of the drive column is connected to the output end of the waterproof drive motor. The multiple cleaning scraper brushes are respectively attached to the opposite sides of the two defoaming diaphragms.

[0014] Preferably, the waterproof drive motor is a miniature waterproof motor, and a load-bearing support frame is provided on the outside of the waterproof drive motor, which is installed on the defoaming isolation plate.

[0015] Preferably, the interior of each defoaming reflux box is equipped with a partition filter plate, and both ends of the reflux pipe are connected to the bottom of the defoaming reflux box and the feeding pipe of the pneumatic diaphragm pump body.

[0016] Preferably, each of the two return pipes is equipped with a control valve, and a sealing ring is provided on the outer side of the defoaming diaphragm, which is sealed and fitted into the defoaming chamber of the pneumatic diaphragm pump body.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a pneumatic diaphragm pump for defoaming, which has the following beneficial effects:

[0019] 1. This defoaming pneumatic diaphragm pump uses defoaming diaphragms in two defoaming chambers of the pump body to filter and defoam. The waterproof drive motor drives the cleaning component to scrape off the foam impurities accumulated on the defoaming diaphragm. After scraping, the liquid is guided to the defoaming return box at the bottom for filtration. Then, the return pipe, in conjunction with the micro pump, guides the filtered liquid to the feed pipe of the pneumatic diaphragm pump body for circulation and defoaming. The cleaning component includes a cleaning scraper brush, which can cut the foam while scraping off impurities, resulting in good defoaming effect and giving the device self-cleaning ability. Foam does not easily adhere to and accumulate on the diaphragm, and the diaphragm can maintain high-quality defoaming.

[0020] 2. This defoaming pneumatic diaphragm pump, through the setting of defoaming control components including an installation end, a defoaming isolation plate, and a defoaming fan, allows liquid to enter the main body of the pneumatic diaphragm pump before entering the installation end. The defoaming isolation plate squeezes large foams, and the defoaming fan cuts the large foams. At the same time, while the defoaming diaphragm is defoaming, a cleaning scraper brush can cut and break the foam, thereby achieving high-quality defoaming. This gives the device self-cleaning ability, making it less likely for foam to adhere and accumulate on the diaphragm. The diaphragm can maintain high-quality defoaming, and the auxiliary foam removal ability is good, resulting in high-quality foam removal. Attached Figure Description

[0021] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a three-dimensional sectional view of the structure of this utility model.

[0023] Figure 3 This is a three-dimensional sectional view of the structure of this utility model from below;

[0024] Figure 4 This is a side perspective perspective view of the connection structure between the cleaning component and the waterproof drive motor of this utility model;

[0025] Figure 5 This is a three-dimensional schematic diagram of the connection structure between the drive column and the cleaning scraper brush of this utility model from another perspective.

[0026] Figure 6 This is a bottom-view perspective view of the connection structure of the defoaming isolation plate of this utility model.

[0027] In the diagram: 1. Pneumatic diaphragm pump body; 2. Defoaming diaphragm; 3. Defoaming return box; 4. Cleaning assembly; 41. Support plate; 42. Drive column; 43. Cleaning scraper brush; 5. Waterproof drive motor; 6. Return pipe; 7. Miniature pump body; 8. Defoaming control assembly; 81. Mounting end; 82. Defoaming isolation plate; 83. Defoaming fan; 9. Support frame; 10. Separating filter plate; 11. Control valve; 12. Sealing ring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-6 A pneumatic diaphragm pump for defoaming includes a pneumatic diaphragm pump body 1 and a defoaming diaphragm 2, with the two defoaming diaphragms 2 correspondingly installed in the two defoaming chambers of the pneumatic diaphragm pump body 1;

[0030] Two defoaming return boxes 3 are connected to the bottom of the pneumatic diaphragm pump body 1. Each of the two defoaming chambers of the pneumatic diaphragm pump body 1 is equipped with a cleaning component 4 and a waterproof drive motor 5. The two cleaning components 4 are attached to the opposite sides of the two defoaming diaphragms 2. The two defoaming return boxes 3 are located directly below the two cleaning components 4.

[0031] The waterproof drive motor 5 can drive the cleaning component 4 to rotate. The bottom of the defoaming return box 3 is equipped with a return pipe 6 and a micro pump body 7. The bottom ends of the two return pipes 6 are respectively connected to the two feeding pipes of the pneumatic diaphragm pump body 1. The pump inlet pipe of the pneumatic diaphragm pump body 1 is equipped with a defoaming control component 8.

[0032] The beneficial effects of this solution are as follows: Defoaming diaphragms 2 are installed in both defoaming chambers of the pneumatic diaphragm pump body 1, serving as defoaming and filtering agents. The waterproof drive motor 5 drives the cleaning component 4 to scrape away the foam impurities accumulated on the defoaming diaphragms 2. After scraping, the liquid is guided to the defoaming return box 3 at the bottom for filtration. Then, the return pipe 6, in conjunction with the micro-pump 7, guides the filtered liquid to the feed pipe of the pneumatic diaphragm pump body 1 for circulating defoaming. The cleaning component 4 includes a cleaning scraper brush 43, which can assist in cutting the foam while scraping away impurities, resulting in good defoaming effect. A defoaming control component 8 is installed at the pump inlet pipe of the pneumatic diaphragm pump body 1. Large foams are squeezed by the defoaming isolation plate 82, and then the large foams are cut by the defoaming fan 83, achieving high-quality defoaming. This gives the device self-cleaning capability, preventing foam from easily adhering and accumulating on the diaphragm, allowing the diaphragm to maintain high-quality defoaming, and providing good auxiliary foam removal capabilities and high-quality foam removal.

[0033] Furthermore, the defoaming control component 8 includes a mounting end 81, a defoaming isolation plate 82, and a defoaming fan 83. The mounting end 81 is fixed to the pump inlet pipe of the pneumatic diaphragm pump body 1. The defoaming isolation plate 82 and the defoaming fan 83 are both installed inside the mounting end 81. The defoaming fan 83 is correspondingly installed between the defoaming isolation plate 82 and the pneumatic diaphragm pump body 1.

[0034] By setting up a defoaming control component 8, which includes an installation end 81, a defoaming isolation plate 82, and a defoaming fan 83, when liquid enters the pneumatic diaphragm pump body 1, it can be pre-entered at the installation end 81. The defoaming isolation plate 82 squeezes the large foam, and then the defoaming fan 83 cuts the large foam, resulting in good foam-assisted defoaming ability.

[0035] Furthermore, the defoaming isolation plate 82 is provided with defoaming guide holes arranged at equal intervals, and the defoaming fan 83 is installed on the side of the defoaming isolation plate 82. The defoaming fan 83 is a waterproof fan.

[0036] By setting the defoaming isolation plate 82 with equally spaced defoaming guide holes, it plays an auxiliary role in defoaming large foams. The defoaming fan 83 is a waterproof fan, which can perform waterproof operations and can assist in cutting foams in liquids, resulting in a good auxiliary defoaming effect.

[0037] Furthermore, the mounting end 81 coupling is installed at the pump inlet pipe of the pneumatic diaphragm pump body 1, and the defoaming isolation plate 82 is circularly attached to and isolated on the inner side of the mounting end 81.

[0038] The installation is convenient by using the coupling at the installation end 81, and the defoaming isolation plate 82 is circular and fits and isolates the inner side of the installation end 81. The defoaming isolation plate 82 has a good closing effect and excellent adaptability.

[0039] Furthermore, the cleaning component 4 includes a support plate 41, a drive column 42, and a cleaning scraper brush 43. The two support plates 41 are installed in the two defoaming chambers of the pneumatic diaphragm pump body 1, and the drive column 42 is rotatably connected to the two support plates 41. The cleaning scraper brush 43 is evenly distributed in a ring at one end of the drive column 42, and the other end of the drive column 42 is connected to the output end of the waterproof drive motor 5. The multiple cleaning scraper brushes 43 are attached to the opposite sides of the two defoaming diaphragms 2.

[0040] The cleaning component 4 includes a support plate 41, a drive column 42, and a cleaning scraper brush 43. The support plate 41 and the drive column 42 provide support, and the cleaning scraper brush 43 is attached to the defoaming diaphragm 2. When the waterproof drive motor 5 drives the drive column 42, it can drive the cleaning scraper brush 43 to rotate, thereby stably cleaning and scraping off the foam and sticky liquid accumulated on the defoaming diaphragm 2, with excellent self-cleaning ability.

[0041] Furthermore, the waterproof drive motor 5 is a miniature waterproof motor, and a bearing support frame 9 is provided on the outside of the waterproof drive motor 5. The bearing support frame 9 is installed on the defoaming isolation plate 82.

[0042] By setting the waterproof drive motor 5 as a miniature waterproof motor, the overall operation is stable and it is not easy to get clogged or leak. The load-bearing support frame 9 can support the waterproof drive motor 5, making its operation relatively stable.

[0043] Furthermore, the interior of the defoaming reflux box 3 is equipped with a partition filter plate 10, and both ends of the reflux pipe 6 are connected to the bottom of the defoaming reflux box 3 and the feeding pipe of the pneumatic diaphragm pump body 1.

[0044] By setting up the separator filter plate 10, the foam and viscous liquid flowing down from the defoaming return box 3 can be filtered to assist in the defoaming operation, which has excellent applicability.

[0045] Furthermore, each of the two return pipes 6 is equipped with a control valve 11, and a sealing ring 12 is provided on the outside of the defoaming diaphragm 2. The sealing ring 12 is sealed and attached to the defoaming chamber of the pneumatic diaphragm pump body 1.

[0046] By setting the control valve 11, the return pipe 6 plays a switching control role, the overall operation is stable and has good adaptability, and the sealing ring 12 plays a sealing role for the defoaming diaphragm 2, so that the defoaming diaphragm 2 can be stably sealed in the defoaming chamber of the pneumatic diaphragm pump body 1, with good adaptability.

[0047] It should be noted that all the devices in this application are common devices on the market, and can be selected according to the needs of specific use. The circuit connection relationship of each device is a simple series and parallel connection circuit. There is no innovation in the circuit connection. Those skilled in the art can easily implement it. It belongs to the prior art and will not be described in detail.

[0048] Working principle: By providing defoaming diaphragms 2 in both defoaming chambers of the pneumatic diaphragm pump body 1, the foam in the liquid can be defoamed and filtered when the pneumatic diaphragm pump body 1 pressurizes and transports liquid containing foam.

[0049] The two defoaming chambers of the pneumatic diaphragm pump body 1 are also equipped with a cleaning component 4 and a waterproof drive motor 5. Running the waterproof drive motor 5 can drive the cleaning component 4 to scrape off the foam impurities accumulated on the defoaming diaphragm 2. After scraping, the liquid can be guided to the defoaming return box 3 at the bottom. After being filtered by the separator filter plate 10 in the defoaming return box 3, the filtered liquid is then guided to the feed pipe of the pneumatic diaphragm pump body 1 by the return pipe 6 in conjunction with the micro pump body 7, so that the liquid can be fed to the defoaming diaphragm 2 for foam elimination. The foam and viscous liquid have excellent anti-accumulation and anti-clogging ability.

[0050] The cleaning component 4 includes a support plate 41, a drive column 42, and a cleaning scraper brush 43. The support plate 41 and the drive column 42 provide support, and the cleaning scraper brush 43 is attached to the defoaming diaphragm 2. When the waterproof drive motor 5 drives the drive column 42, it can drive the cleaning scraper brush 43 to rotate, thereby stably cleaning and scraping off the foam and sticky liquid accumulated on the defoaming diaphragm 2. It has excellent self-cleaning ability.

[0051] The pneumatic diaphragm pump body 1 is equipped with a defoaming control component 8 at the pump inlet pipe. The defoaming control component 8 includes an installation end 81, a defoaming isolation plate 82, and a defoaming fan 83. When liquid enters the pneumatic diaphragm pump body 1, it can be pre-entered at the installation end 81. The defoaming isolation plate 82 squeezes large foams, and the defoaming fan 83 cuts the large foams. At the same time, when the defoaming diaphragm 2 is defoaming, the cleaning scraper brush 43 can cut and shred the foam, thereby achieving high-quality defoaming. This gives the device a self-cleaning ability, making it less likely for foam to adhere and accumulate at the diaphragm. The diaphragm can maintain high-quality defoaming, and the auxiliary foam removal ability is good, resulting in high-quality foam removal. This solves the problems of existing diaphragm pumps where foam easily adheres and accumulates and clogs the diaphragm, has poor self-cleaning ability, and poor foam removal quality.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pneumatic diaphragm pump for defoaming, comprising a pneumatic diaphragm pump body (1) and a defoaming diaphragm (2), characterized in that: The two defoaming diaphragms (2) are respectively installed in the two defoaming chambers of the pneumatic diaphragm pump body (1); The bottom of the pneumatic diaphragm pump body (1) is connected to two defoaming return boxes (3). Each of the two defoaming chambers of the pneumatic diaphragm pump body (1) is equipped with a cleaning component (4) and a waterproof drive motor (5). The two cleaning components (4) are attached to the opposite sides of the two defoaming diaphragms (2). The two defoaming return boxes (3) are located directly below the two cleaning components (4). The waterproof drive motor (5) can drive the cleaning component (4) to rotate. The bottom of the defoaming return box (3) is provided with a return pipe (6) and a micro pump body (7). The bottom ends of the two return pipes (6) are respectively connected to the two feeding pipes of the pneumatic diaphragm pump body (1). The pump inlet pipe of the pneumatic diaphragm pump body (1) is provided with a defoaming control component (8).

2. The pneumatic diaphragm pump for defoaming according to claim 1, characterized in that: The defoaming control component (8) includes an installation end (81), a defoaming isolation plate (82), and a defoaming fan (83). The installation end (81) is installed and fixed at the pump inlet pipe of the pneumatic diaphragm pump body (1). The defoaming isolation plate (82) and the defoaming fan (83) are both installed on the inner side of the installation end (81). The defoaming fan (83) is installed between the defoaming isolation plate (82) and the pneumatic diaphragm pump body (1).

3. A pneumatic diaphragm pump for defoaming according to claim 2, characterized in that: The defoaming isolation plate (82) is provided with defoaming guide holes arranged at equal intervals, and the defoaming fan (83) is installed on the side of the defoaming isolation plate (82). The defoaming fan (83) is a waterproof fan.

4. A pneumatic diaphragm pump for defoaming according to claim 2, characterized in that: The mounting end (81) coupling is installed at the pump inlet pipe of the pneumatic diaphragm pump body (1), and the defoaming isolation plate (82) is circular and fitted to the inside of the mounting end (81).

5. A pneumatic diaphragm pump for defoaming according to claim 1, characterized in that: The cleaning component (4) includes a support plate (41), a drive column (42), and a cleaning scraper brush (43). The two support plates (41) are installed in the two defoaming chambers of the pneumatic diaphragm pump body (1). The drive column (42) is rotatably connected to the two support plates (41). The cleaning scraper brush (43) is evenly distributed in a ring at one end of the drive column (42). The other end of the drive column (42) is connected to the output end of the waterproof drive motor (5). The multiple cleaning scraper brushes (43) are attached to the opposite sides of the two defoaming diaphragms (2).

6. A pneumatic diaphragm pump for defoaming according to claim 5, characterized in that: The waterproof drive motor (5) is a miniature waterproof motor. The waterproof drive motor (5) is provided with a bearing support frame (9) on its outer side. The bearing support frame (9) is installed on the defoaming isolation plate (82).

7. A pneumatic diaphragm pump for defoaming according to claim 1, characterized in that: The defoaming reflux box (3) is equipped with a partition filter plate (10) inside. The two ends of the reflux pipe (6) are connected to the bottom of the defoaming reflux box (3) and the feeding pipe of the pneumatic diaphragm pump body (1).

8. A pneumatic diaphragm pump for defoaming according to claim 1, characterized in that: Both of the two return pipes (6) are equipped with control valves (11), and the outer side of the defoaming diaphragm (2) is provided with a sealing ring (12), which is sealed and fitted into the defoaming chamber of the pneumatic diaphragm pump body (1).

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