Water reducing agent compounding device pneumatic diaphragm pump damping structure
Patent Information
- Application Number
- CN202521968147.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-09-12
AI Technical Summary
[0003]本实用新型为解决气动隔膜泵在输送减水剂母液时对管路造成冲击容易引起管路破坏的问题，提供一种减振效果好且安装方便的减水剂复配装置气动隔膜泵减振结构
[0010]所述支座底板与基础之间设有减振垫。
Smart Images
Figure CN224800458U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline vibration reduction technology, specifically a vibration reduction structure for a pneumatic diaphragm pump in a water-reducing agent compounding device. Background Technology
[0002] The mother liquor of polycarboxylate superplasticizer has a high viscosity and is corrosive to metal pumps. To address this characteristic, the superplasticizer compounding production unit preferentially uses a stainless steel pneumatic diaphragm pump, suitable for conveying corrosive liquids, to transport the mother liquor. However, the flow rate of the polycarboxylate superplasticizer mother liquor in the production unit is relatively large. The high-flow-rate pneumatic diaphragm pump generates pulsating liquid flow during pumping, resulting in significant pump body amplitude and impact on the pipeline, potentially damaging pipe connections such as flanges or even causing pipeline breakage. Therefore, the superplasticizer compounding production unit needs to address the vibration problem generated by the high-flow-rate pneumatic diaphragm pump during the transport of the superplasticizer mother liquor. Common methods to solve this problem include installing vibration dampers on the pump foundation or support, but these are not ideal and still cause significant pipeline vibration. Another method is to add rubber expansion joints to the pipeline, but these joints are easily sucked into the pump, affecting the transport of the superplasticizer mother liquor. Utility Model Content
[0003] This invention addresses the problem that pneumatic diaphragm pumps can easily damage pipelines when conveying water-reducing agent mother liquor due to impact. It provides a vibration-damping structure for a pneumatic diaphragm pump used in a water-reducing agent compounding device, which offers good vibration reduction and is easy to install.
[0004] To solve the above-mentioned technical problems, the structural features of this utility model are as follows: it includes a flexible vibration damping connecting pipe installed on the material conveying pipeline connected to the inlet and outlet of the pneumatic diaphragm pump. The flexible vibration damping connecting pipe is located near the inlet and outlet of the pneumatic diaphragm pump. The middle of the flexible vibration damping connecting pipe is a steel wire reinforced pressure-resistant hose. Quick connectors are fixedly connected to both ends of the steel wire reinforced pressure-resistant hose. Connectors that cooperate with the quick connectors are connected to the material conveying pipeline. The material conveying pipeline is provided with a pipeline vibration damping support located near the flexible vibration damping connecting pipe for supporting and fixing the material conveying pipeline and reducing pipeline vibration.
[0005] With the above structure, when installing the flexible vibration damping connecting pipe on the material conveying pipeline, first fix the pipeline vibration damping support, fix the material conveying pipeline to the pipeline vibration damping support, then connect the quick connector of the flexible vibration damping connecting pipe to the connector, and connect the connector to the material conveying pipeline. The installation is convenient and quick. Steel wire reinforced pressure-resistant hoses are flexible and can bend, providing excellent cushioning and vibration damping. This reduces the periodic impact force on the pipeline when the pneumatic diaphragm pump pumps liquid, protecting the material conveying pipeline and significantly mitigating the damage caused by the pump's impact. This extends the pipeline's service life. The pipeline vibration damping support also buffers the material conveying pipeline, reducing the transmission of vibration to downstream material conveying pipelines. The steel wire skeleton inside the hose wall gives it high strength. When the pneumatic diaphragm pump pumps the water-reducing agent mother liquor, the hose will not collapse, thus not affecting material conveying. While the water-reducing agent mother liquor exerts a significant impact force on the hose when discharged from the pneumatic diaphragm pump, the hose's high pressure resistance allows it to withstand this impact without rupture.
[0006] The steel wire reinforced pressure-resistant hose is a steel wire reinforced pressure-resistant rubber hose, and the quick connector is a threaded short pipe.
[0007] The connector is a flanged short pipe, one end of which is connected to the flange of the material conveying pipeline, and the other end of which is screwed to a threaded short pipe.
[0008] The connector is a threaded union, which includes two threaded ends that are respectively screwed to the threaded short pipe and the material conveying pipe. The two threaded ends are connected and fixed by an internal threaded connecting ring. The material conveying pipe is provided with threads that cooperate with the threaded union.
[0009] The pipeline vibration damping support includes a support base plate for fixing the pipeline vibration damping support to the foundation. A pipe groove is fixedly connected above the support base plate and sleeved on the outside of the material conveying pipeline for limiting and supporting the material conveying pipeline. A flexible vibration damping ring is provided between the material conveying pipeline and the pipe groove.
[0010] A vibration damping pad is provided between the support base plate and the foundation.
[0011] The vibration damping structure of the pneumatic diaphragm pump in this utility model's water-reducing agent compounding device employs two vibration damping methods: a flexible vibration damping connecting pipe and a pipeline vibration damping support. The steel wire-reinforced pressure-resistant rubber hose in the flexible vibration damping connecting pipe buffers the vibration and impact generated on the material conveying pipeline when the pneumatic diaphragm pump pumps the water-reducing agent mother liquor. The pipeline vibration damping support reduces the transmission of vibration to the downstream pipeline. The two methods work together to reduce the vibration during the operation of the pneumatic diaphragm pump and prevent the pipeline from being damaged by the impact force of the pneumatic diaphragm pump. The steel wire-reinforced pressure-resistant rubber hose has high strength and pressure resistance, and will not be sucked down or broken due to impact force during the conveying of the water-reducing agent mother liquor. The pipeline vibration damping support is equipped with a vibration damping ring and a vibration damping pad, which plays a role in damping the material conveying pipeline and reducing the damage to the material conveying pipeline caused by vibration and impact. The flexible vibration damping connecting pipe is connected to the material conveying pipeline by threads or flanges, making installation and disassembly convenient and quick. Attached Figure Description
[0012] Figure 1 This is a schematic diagram showing the connection between the flexible vibration damping connecting pipe and the flange-type connecting short pipe. Figure 2 This is a schematic diagram showing the flexible vibration damping connecting pipe after it is separated from the flange-type connecting short pipe. Figure 3 This is a side view of the flexible vibration damping connecting pipe after it is connected to the flange-type connecting short pipe. Figure 4 This is a schematic diagram showing the connection between a flexible vibration damping connecting pipe and a material conveying pipeline via a flanged connection short pipe. Figure 5 for Figure 4 A schematic diagram of the AA cross-section; Figure 6 A schematic diagram showing the connection between a flexible vibration damping connecting pipe and a material conveying pipeline via a threaded union. Figure 7 This is a schematic diagram showing the flexible vibration damping connecting pipe after it has been separated from the threaded union. In the diagram: 1. Flexible vibration damping connecting pipe; 11. Steel wire reinforced pressure-resistant rubber hose; 12. Internally threaded connecting short pipe; 2. Flange-type connecting short pipe; 21. Externally threaded short pipe; 22. First flange; 3. Material conveying pipeline; 4. Pipeline vibration damping support; 41. Vibration damping pad; 42. Support base plate; 43. Vertical plate; 44. Lower half of the pipe groove; 45. Upper half of the pipe groove; 46. Vibration damping ring; 5. Second flange; 6. Sealing gasket; 7. Threaded union; 71. External thread; 72. Internal thread; 73. Internally threaded connecting ring. Detailed Implementation
[0013] Reference Figure 1-5A vibration damping structure for a pneumatic diaphragm pump in a water-reducing agent compounding device includes a flexible vibration damping connecting pipe 1 installed on a material conveying pipeline 3 connected to the inlet and outlet of the pneumatic diaphragm pump. The flexible vibration damping connecting pipe 1 is located near the inlet and outlet of the pneumatic diaphragm pump. The middle section of the flexible vibration damping connecting pipe 1 is a pressure-resistant hose that is not easily collapsed by the suction of the pneumatic diaphragm pump; preferably, it is a steel wire reinforced pressure-resistant hose. Quick-connect fittings are fixedly connected to both ends of the steel wire reinforced pressure-resistant hose. Connectors that mate with the quick-connect fittings are connected to the material conveying pipeline 3, allowing for quick connection between the quick-connect fittings and the connectors. Vibration damping supports 4 are provided on the material conveying pipeline 3 to reduce pipeline vibration. The vibration damping supports 4 also provide support and fixation for the material conveying pipeline 3. The pipe connection points are relatively prone to breakage, such as... Figure 4 As shown, the pipe vibration damping support 4 is set near the material conveying pipe 3.
[0014] Reference Figure 1-7 Steel wire reinforced pressure-resistant hose is the preferred choice for rubber hose 11. Steel wire reinforced pressure-resistant rubber hose 11 has certain bending properties, which can buffer the pulsating impact force and pump vibration generated when the pneumatic diaphragm pump pumps the water-reducing agent mother liquor. Steel wire reinforced pressure-resistant rubber hose 11 has spiral steel wires embedded in its wall, increasing its strength and pressure resistance. It is not easily flattened or collapsed, has excellent pressure resistance, can withstand high pressure, and is corrosion-resistant. The rubber hose 11 is a commercially available product, and its structure and materials are existing technology, which will not be described in detail here. The length of the steel wire reinforced pressure-resistant rubber hose 11 is determined according to the liquid flow rate and the pumping pressure of the pneumatic diaphragm pump, for example, setting its length to 1 meter. The quick connector uses a threaded connection short pipe, which can be made of stainless steel. The threaded connection short pipe and the steel wire reinforced pressure-resistant rubber hose 11 can be fixed by welding, clamping with pipe clamps, steel wire, or glue bonding. The threaded connection short pipe can also be made of rigid plastic pipe, such as PP pipe. Figure 1-7 As shown, the threaded connection short pipe is an internally threaded connection short pipe 12. Figure 1-4 The connecting component is a flange-type connecting short pipe 2. One end of the flange-type connecting short pipe 2 is connected to the flange of the material conveying pipeline 3, and the other end is screwed to the internally threaded connecting short pipe 12. Specifically, the flange-type connecting short pipe 2 includes an externally threaded short pipe 21. One end of the externally threaded short pipe 21 is provided with an external thread that cooperates with the internally threaded connecting short pipe 12, and the other end is fixedly connected to the first flange 22. The material conveying pipeline 3 is provided with a second flange 5 that cooperates with the first flange 22. The first flange 22 and the second flange 5 are fastened by bolts and nuts. A sealing gasket 6 is provided between the first flange 22 and the second flange 5. Of course, the threaded connecting short pipe can also use an external thread, while the short pipe in the flange-type connecting short pipe 2 uses an internal thread. Figure 6-7This is a schematic diagram of the connection between the flexible vibration damping connecting pipe 1 and the material conveying pipe 3 using a threaded union 7. The threaded union 7 includes an external thread 71 and an internal thread 72. The external thread 71 and the internal thread 72 are connected after mating. The external thread 71 and the internal thread 72 are connected and fixed by an internal thread connecting ring 73. The external thread of the internal thread 72 is provided with an external thread that mates with the internal thread connecting ring 73. The structure and principle of the threaded union 7 are existing technologies and will not be described in detail here. The external thread 71 is connected to the internal thread connecting short pipe 12. The end of the material conveying pipe 3 is provided with an external thread that mates with the internal thread 72. The material conveying pipe 3 is connected to the internal thread 72.
[0015] Reference Figure 4 , 5 The pipeline vibration damping support 4 supports and fixes the material conveying pipeline 3. The pipeline vibration damping support 4 is fixed on the foundation, which can be the ground, wall, column or precast foundation. Taking the pipeline vibration damping support 4 set on the ground as an example, the pipeline vibration damping support 4 includes a support base plate 42 for fixing the pipeline vibration damping support 4 to the foundation. A vibration damping pad 41 is provided between the support base plate 42 and the foundation. The vibration damping pad 41 can be a rubber pad. The support base plate 42 is fixed to the foundation by expansion bolts and nuts. A pipe groove for limiting and supporting the material conveying pipeline 3 is fixedly connected above the support base plate 42. The pipe groove is sleeved on the outside of the material conveying pipeline 3. Specifically, the pipe groove is formed by connecting the lower half pipe groove 44 and the upper half pipe groove 45. The lower half pipe groove 44 is fixedly connected to the support base plate 42 by two upright plates 43. The material conveying pipeline 3 passes through the pipe groove. A flexible vibration damping ring 46 is provided between the material conveying pipeline 3 and the pipe groove. The vibration damping ring 46 can be made of felt, foam elastic material, etc.
[0016] Working process: During installation, the material conveying pipe 3 is first supported and fixed with supports, and the support near the flexible vibration damping connecting pipe 1 is a pipe vibration damping support 4. When using the flange connection method, the external thread short pipe 21 is pre-welded to the first flange 22, and then the external thread short pipe 21 is screwed to the internal thread connecting short pipe 12. Then, the first flange 22 and the second flange 5 are fixedly connected with bolts and nuts. When using the threaded union 7 for connection, the external thread 71 is screwed to the internal thread connecting short pipe 12, and then the internal thread 72 is screwed to the material conveying pipe 3. Then, the external thread 71 and the internal thread 72 are connected and fixed with the internal thread connecting ring 73. It can be seen that the installation and connection of the flexible vibration damping connecting pipe 1 and the material conveying pipe 3 is convenient and quick, and disassembly is also convenient when replacement, maintenance or dredging is required. The steel wire reinforced pressure-resistant rubber hose 11 is flexible and can absorb the impact and vibration generated by the pneumatic diaphragm pump when pumping the water-reducing agent mother liquor, reducing the impact of vibration on the material conveying pipeline 3. The pipeline vibration damping support 4 can reduce the transmission of vibration to the downstream pipeline. The two methods work together to provide vibration damping protection for the material conveying pipeline 3 and extend the pipeline's life. The steel wire reinforced pressure-resistant rubber hose 11 has high strength and pressure resistance, will not be sucked into the pneumatic diaphragm pump, and can withstand the pressure and impact when the pneumatic diaphragm pump discharges the water-reducing agent mother liquor.
[0017] This invention reduces the impact force generated by the pneumatic diaphragm pump by setting a flexible vibration-damping connecting pipe and a pipe vibration-damping support on the material conveying pipeline, thus protecting the material conveying pipeline. The flexible vibration-damping connecting pipe is connected to the material conveying pipeline by a flange or thread, making installation and disassembly convenient and quick.
Claims
1. A vibration damping structure for a pneumatic diaphragm pump in a water-reducing agent compounding device, characterized in that: The system includes a flexible vibration damping connecting pipe (1) installed on the material conveying pipeline (3) connected to the inlet and outlet of the pneumatic diaphragm pump. The flexible vibration damping connecting pipe (1) is located near the inlet and outlet of the pneumatic diaphragm pump. The middle of the flexible vibration damping connecting pipe (1) is a steel wire reinforced pressure-resistant hose. Both ends of the steel wire reinforced pressure-resistant hose are fixedly connected to quick connectors. The material conveying pipeline (3) is connected to a connector that works with the quick connector. The material conveying pipeline (3) is provided with a pipeline vibration damping support (4) located near the flexible vibration damping connecting pipe (1) for supporting and fixing the material conveying pipeline (3) and reducing pipeline vibration.
2. The vibration damping structure of the pneumatic diaphragm pump in the water-reducing agent compounding device according to claim 1, characterized in that: The steel wire reinforced pressure-resistant hose is a steel wire reinforced pressure-resistant rubber hose (11), and the quick connector is a threaded short pipe.
3. The vibration damping structure of the pneumatic diaphragm pump in the water-reducing agent compounding device according to claim 2, characterized in that: The connector is a flanged short pipe (2), one end of which is connected to the flange of the material conveying pipeline (3), and the other end of which is screwed to a threaded short pipe.
4. The vibration damping structure of the pneumatic diaphragm pump in the water-reducing agent compounding device according to claim 2, characterized in that: The connector is a threaded union (7). The threaded union (7) includes two threaded ends that are respectively threaded to the threaded short pipe and the material conveying pipe (3). The two threaded ends are connected and fixed by an internal threaded connecting ring (73). The material conveying pipe (3) is provided with threads that cooperate with the threaded union (7).
5. The vibration damping structure of the pneumatic diaphragm pump in the water-reducing agent compounding device according to claim 1, characterized in that: The pipeline vibration damping support (4) includes a support base plate (42) for fixing the pipeline vibration damping support (4) on the foundation. A pipe groove is fixedly connected above the support base plate (42) and sleeved on the outside of the material conveying pipeline (3) for limiting and supporting the material conveying pipeline (3). A flexible vibration damping ring (46) is provided between the material conveying pipeline (3) and the pipe groove.
6. The vibration damping structure of the pneumatic diaphragm pump in the water-reducing agent compounding device according to claim 5, characterized in that: A vibration damping pad (41) is provided between the support base plate (42) and the foundation.