A new type of silencer for diaphragm pump

Abstract

A new type of silencer for a diaphragm pump includes a silencer. The silencer includes a silencer housing, a nano silencer tube, a silencer conversion joint, a silencer pipe, and a silencer cover. The nano silencer tubes are arranged side by side and spaced apart from each other. One end of the silencer conversion joint is connected to two of the nano silencer tubes, and the other end is connected to the silencer pipe. The silencer cover is fixed to the silencer housing by fasteners, and the two are connected in a sealed manner, and the cavity is filled with sound insulation cotton. Compared with the prior art, the present invention, by arranging the nano silencer tube, makes the high-speed gas flow discharged from the pump body longer and the flow rate slower, which can effectively reduce the noise of the airflow discharge. And by arranging the silencer housing, the silencer is attached to the pump body, and the original pores of the pump body are used to place the silencer, thereby reducing the additional space required for placing the diaphragm pump and reducing the space required for installing the diaphragm pump.

Description

Technical Field

[0001] The present invention relates to the technical field of diaphragm pumps, in particular to a novel muffler for a diaphragm pump. Background Art

[0002] Diaphragm pump, also known as control pump, is the main type of actuator. It receives the control signal output by the regulating control unit and uses power operation to change the fluid flow. It is a new type of conveying machinery that can transport various corrosive liquids, liquids with particles, high viscosity, volatile, flammable, and highly toxic liquids.

[0003] In the structure of a pneumatic diaphragm pump, a muffler is typically installed at the exhaust port to reduce the noise generated by the vibration of the surrounding air caused by compressed air passing through the exhaust port. A muffler is a device that reduces airflow noise. It allows airflow to pass while effectively preventing vibration of the surrounding air and reducing the outward transmission of sound energy. Existing mufflers are mostly cylindrical in structure. They reduce the noise of the plug injection by reducing the exhaust pressure and expanding the volume through the principle of pressure reduction and expansion. This method is simple in structure and has a poor noise reduction effect. In addition, the large volume occupies a lot of space, resulting in a high space requirement for the placement and transportation of the diaphragm pump.

[0004] For example, Chinese utility model CN202021319541.8 provides a diaphragm pump silencer, comprising a silencer housing, an air inlet and an air outlet provided on the silencer housing, a first expansion chamber and a second expansion chamber, and a first silencer pipe and a second silencer pipe in the silencer housing, the air inlet is connected to the first expansion chamber, the inlet of the first silencer pipe is located in the first expansion chamber, and the outlet thereof is located in the second expansion chamber, the second silencer pipe is arranged in the second expansion chamber, the inlet of the second silencer pipe is located at an end away from the outlet of the first silencer pipe, the outlet of the second silencer pipe is connected to the air outlet, the first silencer pipe and the second silencer pipe are perpendicular to each other, and their inner diameters are not equal; this scheme achieves the purpose of silencer by suddenly expanding and contracting the pipe cross section multiple times, causing a sudden change in the acoustic impedance in the channel, and then changing the direction of sound wave propagation, and causing reflection, interference and other phenomena in the silencer. Its structural design is novel, the silencer effect is good, and it can effectively improve the user experience.

[0005] Although this solution solves the problems of poor silencing effect and common condensation phenomenon of conventional silencers, due to the use of multiple silencer pipes, the structure is complex and the volume of the silencer is inevitably larger than that of conventional silencers, which requires more space when installing and transporting the diaphragm pump. Therefore, a silencer with excellent silencing effect and smaller space is needed, which is more beneficial for the diaphragm pump to be suitable for working environments in various spaces. Summary of the Invention

[0006] In view of this, the present invention provides a new type of muffler for a diaphragm pump that can solve the above problems.

[0007] A new type of silencer for a diaphragm pump comprises a pump body and a silencer disposed on the pump body. The silencer comprises a silencer shell, a pair of nano-silencer tubes disposed in the silencer shell, a silencer conversion joint connecting the two nano-silencer tubes, a silencer pipe connecting the pump body and the silencer conversion joint, and a silencer cover covering the silencer shell. The silencer shell is a semi-circular ring structure, the inner diameter of which is consistent with the outer diameter of the pump body, and the silencer shell is located at the bottom of the pump body. The nano-silencer tubes are arranged side by side and spaced apart from each other. The nano-silencer tubes are arranged in an arc shape. The silencer conversion joint has two output ports at one end and is respectively connected to the two nano-silencer tubes, and the other end is connected to the silencer pipe. The silencer cover is made of aluminum plate and has multiple holes. The silencer cover is fixed to the silencer shell by fasteners, the two are sealed, and the cavity is filled with sound insulation cotton.

[0008] Furthermore, the pump body is the main body of a pneumatic diaphragm pump and has an exhaust port.

[0009] Furthermore, the silencer shell is made of stainless steel or alloy material.

[0010] Furthermore, the nano-silencer tube is a tubular structure made of nano-materials.

[0011] Furthermore, the silencer conversion joint is made of stainless steel or alloy material.

[0012] Furthermore, the silencer pipe and the silencer conversion joint are made of the same material.

[0013] Furthermore, the silencer cover is a perforated plate sound-absorbing structure.

[0014] Compared to existing technologies, the novel muffler for a diaphragm pump provided by the present invention, by providing the nano-muffler tube, lengthens the path of high-speed gas discharged from the pump body and slows its flow rate, effectively reducing the noise of the exhaust air. Furthermore, by providing the muffler housing, the muffler is attached to the pump body, utilizing the existing pores in the pump body to accommodate the muffler, thereby reducing the additional space required to accommodate the diaphragm pump and thus the space required for its installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the product structure of a new type of silencer for a diaphragm pump provided by the present invention.

[0016] Figure 2 for Figure 1 A schematic diagram of the product structure of a new type of silencer for a diaphragm pump. DETAILED DESCRIPTION

[0017] The following is a further detailed description of specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the scope of protection of the present invention.

[0018] like Figures 1 to 2 , which is a schematic structural diagram of a novel muffler for a diaphragm pump provided by the present invention. The novel muffler for a diaphragm pump includes a pump body 10 and a muffler 20 disposed on the pump body 10. It is conceivable that the novel muffler for a diaphragm pump also includes other functional modules such as fasteners and an electrical control unit, which are well known to those skilled in the art and will not be detailed here.

[0019] The pump body 10 is the main body of the pneumatic diaphragm pump and has an exhaust port, which is a prior art and should be well known to those skilled in the art, so it will not be described again here.

[0020] The silencer 20 includes a silencer shell 21, a pair of nano-silencer tubes 22 arranged in the silencer shell, a silencer conversion joint 23 connecting the two nano-silencer tubes 22, a silencer pipe 24 connecting the pump body 10 and the silencer conversion joint 23, and a silencer cover 25 covering the silencer shell 21.

[0021] The muffler housing 21 is made of stainless steel or alloy to ensure its stability during long-term operation. The muffler housing 21 is a semi-circular structure, and its inner diameter is consistent with the outer diameter of the pump body 10. The muffler housing 21 is located at the bottom of the pump body 10, so that when the muffler 20 is installed on the pump body 10, it can fit on the pump body 10 and utilize the unnecessary space at the bottom, minimizing the impact of the installation of the muffler component on the pump size and space size, while ensuring the stability of the muffler 20 and preventing wear due to vibration generated by long-term operation.

[0022] The nano-silencer tubes 22 are arranged side by side and spaced apart from each other. The nano-silencer tubes 22 are tubular structures made of nanomaterials. They disperse large airflows into multiple small airflows through the pores of the nanomaterials to reduce noise. At the same time, the pipe structure is used to extend the airflow path, reduce the airflow velocity, and reduce the noise of high-pressure airflow leaving the pump body. The nano-silencer tubes 22 are arranged in an arc shape to better fit the pump body and reduce installation space. At the same time, the air in the nano-silencer tubes 22 does not move in a straight line, but in an arc shape, which increases losses and further reduces the airflow velocity. One end of the nano-silencer tube 22 is connected to the silencer conversion joint 23, and the other end is closed. The closed end can prevent the airflow from rushing out at high speed, thereby generating noise.

[0023] The muffler adapter 23 has two outlets 231 at one end, each connected to the two nano-muffler tubes 22. The other end is connected to the muffler pipe 24. This diverts the gas just discharged from the pump body 10, reducing the air flow rate and facilitating the noise reduction and silencing of the nano-muffler tubes 22. The muffler adapter 23 is made of a corrosion-resistant, high-stability material such as stainless steel or alloy to ensure long-term use in high-pressure shock environments.

[0024] The muffler pipe 24 and the muffler conversion joint 23 are made of the same material to fix and lock the muffler 20 to the exhaust port of the pump body 10. Two sealing rings are provided between the muffler pipe 24 and the muffler conversion joint to prevent leakage when high-pressure gas rushes out of the pump body 10.

[0025] The muffler cover 25 is made of aluminum plate and has multiple openings to form a perforated plate sound-absorbing structure, thereby further reducing noise. The muffler cover 25 is fixed to the muffler housing 21 via fasteners, and the two are sealed together. The interior of the cavity is filled with sound insulation cotton or other sound insulation materials to further prevent noise leakage.

[0026] Compared to the prior art, the novel muffler for a diaphragm pump provided by the present invention, by providing the nano-muffler tube 22, lengthens the path of high-speed gas discharged from the pump body 10 and slows its flow rate, effectively reducing the noise of the exhaust air. Furthermore, by providing the muffler housing 21, the muffler 20 is attached to the pump body 10, utilizing the existing pores of the pump body 10 to accommodate the muffler 20, thereby reducing the additional space required to accommodate the diaphragm pump and the space required for its installation.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A new type of silencer for a diaphragm pump, characterized by: The new silencer for the diaphragm pump includes a pump body and a silencer arranged on the pump body, the silencer includes a silencer shell, a pair of nano-silencer tubes arranged in the silencer shell, a silencer conversion joint connecting the two nano-silencer tubes, a silencer pipe connecting the pump body and the silencer conversion joint, and a silencer cover covering the silencer shell, the silencer shell is a semi-circular ring structure, the inner diameter of which is consistent with the outer diameter of the pump body, and the silencer shell is located at the bottom of the pump body, the nano-silencer tubes are arranged side by side and spaced from each other, the nano-silencer tubes are arranged in an arc shape, one end of the silencer conversion joint has two output ports and is respectively connected to the two nano-silencer tubes, and the other end is connected to the silencer pipe, the silencer cover is made of aluminum plate and has multiple holes, the silencer cover is fixed to the silencer shell by fasteners, the two are sealed and the cavity is filled with sound insulation cotton.

2. The novel muffler for a diaphragm pump according to claim 1, characterized in that: The pump body is the main body of the pneumatic diaphragm pump and has an exhaust port.

3. The novel muffler for a diaphragm pump according to claim 1, characterized in that: The muffler housing is made of stainless steel or alloy material.

4. The novel muffler for a diaphragm pump according to claim 1, characterized in that: The nano muffler tube is a tubular structure made of nano materials.

5. The novel muffler for a diaphragm pump according to claim 1, characterized in that: The silencer conversion joint is made of stainless steel or alloy material.

6. The novel muffler for a diaphragm pump according to claim 5, characterized in that : The silencer pipe and the silencer conversion joint are made of the same material.

7. The novel muffler for a diaphragm pump according to claim 1, characterized in that: The silencer cover is a perforated plate sound-absorbing structure.

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