Silencing device capable of effectively reducing noise of electromagnetic valve of pneumatic conveying pipeline

Abstract

The utility model discloses a silencing device capable of effectively reducing noise of an electromagnetic valve of a pneumatic conveying pipeline, which comprises an air inlet pipe, a shell, a silencing column, an exhaust hole and a deflection baffle, and the air inlet pipe is arranged at the bottom of the shell; a silencing column is arranged in the shell; an exhaust hole is formed in the top end of the shell; a deflection baffle is arranged at the lower part of the silencing column; one end of the air inlet pipe is connected with the shell, and the other end of the air inlet pipe is connected with the electromagnetic valve exhaust hole. The shell is made of a plastic bottle with the volume of 500mL and can resist the pressure of 4MPa; the silencing column is formed by connecting an iron wire and a conical sponge body; a deflection baffle is arranged at the one-third position of the lower portion of the silencing column and used for dredging airflow and improving the silencing effect. When the silencing columns and the deflection baffles are installed in the shell, the shell is cut open firstly, and after the silencing columns and the deflection baffles are installed, the shell is bonded through super glue. The electromagnetic valve is simple in structure, reliable in work, easy and convenient to operate and capable of effectively reducing noise of the pneumatic conveying pipeline electromagnetic valve.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental protection equipment, and further belongs to the technical field of noise reduction equipment, and specifically relates to a silencer which has simple structure, reliable operation, and easy operation and can effectively reduce the noise of a solenoid valve of a pneumatic conveying pipeline. Background Art

[0002] The pneumatic sample delivery device is a device for delivering samples to the laboratory. In the steelmaking process, in order to master the chemical composition of the molten steel in the electric arc furnace and ensure the normal progress of the smelting process, the samples need to be sent to the laboratory for analysis. The pneumatic sample delivery device uses compressed air to blow the sample box to the sending and receiving station to complete the work of transporting samples. The pneumatic sample delivery device is generally composed of a sending and receiving cabinet, a directional turnout, a pipeline system and an electrical control system. The sending and receiving cabinet is used to send and receive samples, and it is controlled by a differential cylinder. The pneumatic conveying pipeline is generally equipped with three solenoid valves, each of which has its own use. The function of the solenoid valve of the pneumatic conveying pipeline is to control the up and down of the cylinder push rod, control the inlet and outlet of compressed air, and control the lifting and lowering of the sample delivery cylinder. At present, the silencers used on the solenoid valves of the pneumatic conveying pipeline are mainly metal silencers. There are air holes on the silencer, and the compressed air is dispersed through the air holes of the silencer, thereby achieving a silencing effect. However, the air holes of the silencer are easily blocked by metal dust and dirt, resulting in uneven air output, large air output and air leakage in some air holes, which produces noise and poor silencing effect. Therefore, the key to solving this problem is to research and develop a silencing device with simple structure, reliable operation and easy operation that can effectively reduce the noise of the solenoid valve of the pneumatic conveying pipeline. Utility Model Content

[0003] The utility model aims to provide a silencing device which has simple structure, reliable operation and easy operation and can effectively reduce the noise of the electromagnetic valve of the pneumatic conveying pipeline.

[0004] The purpose of the utility model is achieved in this way, including an air intake pipe, a shell, a silencer column, an exhaust hole, and a deflection baffle, wherein the air intake pipe is arranged at the bottom of the shell; the silencer column is arranged inside the shell; the exhaust hole is arranged at the top of the shell; the deflection baffle is arranged under the silencer column; one end of the air intake pipe is connected to the shell, and the other end is connected to the exhaust hole of the solenoid valve.

[0005] The utility model is composed of an air inlet pipe, a shell, a silencer column, an exhaust hole and a baffle plate; the shell is made of a plastic bottle with a volume of 500mL and can withstand a pressure of 4MPa; the silencer column is made by connecting an iron wire and a conical sponge; a baffle plate is arranged at the lower third of the silencer column, and the baffle plate is used to guide the airflow to the silencer column, increase the specific surface area of ​​air flow, and thus enhance the silencing effect; when the silencer column and the baffle plate are installed in the shell, the shell is first cut open, and after the silencer column and the baffle plate are installed, the shell is bonded with a strong glue.

[0006] The utility model introduces the gas discharged by the electromagnetic valve into the shell through the air inlet pipe, and the silencing effect is very good.

[0007] The utility model has the advantages of simple structure, reliable operation and convenient operation, and can effectively reduce the noise of the electromagnetic valve of the pneumatic conveying pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0009] Figure 2 It is a schematic diagram of the solenoid valve structure.

[0010] In the figure: 1-intake pipe, 2-shell, 3-muffler column, 4-exhaust hole, 5-baffle, 6-solenoid valve body, 7-solenoid valve head, 8-solenoid valve coil, 9-solenoid valve exhaust hole. DETAILED DESCRIPTION

[0011] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited in any way. Any changes made based on the teachings of the present invention fall within the protection scope of the present invention.

[0012] like Figures 1-2 As shown, the utility model includes an air intake pipe 1, a shell 2, a silencer column 3, an exhaust hole 4, and a deflection baffle 5. The air intake pipe 1 is arranged at the bottom of the shell 2; the silencer column 3 is arranged inside the shell 2; the exhaust hole 4 is arranged at the top of the shell 2; the deflection baffle 5 is arranged under the silencer column 3; one end of the air intake pipe 1 is connected to the shell 2, and the other end is connected to the exhaust hole 9 of the solenoid valve.

[0013] A three-way pipe is provided at the connection end between the air inlet pipe 1 and the exhaust hole 9 of the solenoid valve.

[0014] The housing 2 is made of a plastic bottle with a volume of 500 mL, and a circular hole having the same size as the air inlet pipe 1 is made on the lid.

[0015] The housing 2 can withstand a pressure of 4 MPa.

[0016] The silencing column 3 comprises two pieces in total, which are made by connecting iron wires and conical sponges. The conical sponges are connected in series by iron wires of suitable length.

[0017] A deflection baffle 5 is provided at the lower third of the silencing column 3, and the deflection baffle 5 is used to guide the airflow to the silencing column 3, increase the specific surface area of ​​the air flow, and thus enhance the silencing effect.

[0018] The number of the exhaust holes 4 is 3, and the diameter is ∮10 mm.

[0019] The deflector baffle 5 is made of Q235-B steel plate with a thickness of 0.5 mm.

[0020] When the silencer column 3 and the baffle plate 5 are installed in the shell 2, the shell 2 is first cut open, and after the silencer column 3 and the baffle plate 5 are installed, the shell 2 is bonded with strong glue.

[0021] The working principle and working process of this utility model:

[0022] The utility model is composed of an air inlet pipe 1, a shell body 2, a silencer column 3, an exhaust hole 4, and a baffle plate 5; the shell body 2 is made of a plastic bottle with a volume of 500mL and can withstand a pressure of 4MPa; the silencer column 3 is made by connecting an iron wire and a conical sponge; a baffle plate 5 is arranged at the lower third of the silencer column 3, and the baffle plate 5 is used to guide the airflow to the silencer column 3, increase the specific surface area of ​​air flow, and thus enhance the silencing effect; when the silencer column 3 and the baffle plate 5 are installed in the shell body 2, the shell body 2 is first cut open, and after the silencer column 3 and the baffle plate 5 are installed, the shell body 2 is bonded with a strong glue.

[0023] The utility model introduces the gas discharged from the electromagnetic valve into the housing 2 through the air intake pipe 1 for silencing.

Claims

1. A silencing device capable of effectively reducing the noise of a solenoid valve in a pneumatic conveying pipeline, comprising an air inlet pipe (1), a housing (2), a silencing column (3), an exhaust hole (4), and a baffle plate (5), wherein: An air inlet pipe (1) is arranged at the bottom of the shell (2); a muffler column (3) is arranged inside the shell (2); an exhaust hole (4) is arranged at the top of the shell (2); a baffle plate (5) is arranged below the muffler column (3); one end of the air inlet pipe (1) is connected to the shell (2), and the other end is connected to the exhaust hole (9) of the solenoid valve.

2. The silencing device capable of effectively reducing the noise of the electromagnetic valve of the pneumatic conveying pipeline according to claim 1 is characterized in that: A three-way pipe is provided at the connection end between the air inlet pipe (1) and the exhaust hole (9) of the solenoid valve.

3. The silencing device capable of effectively reducing the noise of the electromagnetic valve of the pneumatic conveying pipeline according to claim 1 is characterized in that: The housing (2) is made of a plastic bottle with a volume of 500 mL, and a circular hole having the same size as the air inlet pipe (1) is made on the lid.

4. The silencing device capable of effectively reducing the noise of the electromagnetic valve of the pneumatic conveying pipeline according to claim 1 is characterized in that: The shell (2) can withstand a pressure of 4 MPa.

5. The silencing device capable of effectively reducing the noise of the electromagnetic valve of the pneumatic conveying pipeline according to claim 1 is characterized in that: The muffler column (3) comprises two pieces, which are made by connecting an iron wire and a conical sponge body. The conical sponge bodies are connected in series using an iron wire of suitable length.

6. The silencing device capable of effectively reducing the noise of the electromagnetic valve of the pneumatic conveying pipeline according to claim 1 is characterized in that: A deflection baffle (5) is provided at the lower third of the silencer column (3), and the deflection baffle (5) is used to guide the airflow to the silencer column (3), thereby increasing the specific surface area of ​​the air flow and enhancing the silencer effect.

7. The silencing device capable of effectively reducing the noise of the electromagnetic valve of the pneumatic conveying pipeline according to claim 1 is characterized in that: The number of the exhaust holes (4) is 3, and the diameter is ∮10 mm.

8. The silencing device capable of effectively reducing the noise of the electromagnetic valve of the pneumatic conveying pipeline according to claim 1 is characterized in that: The deflector baffle (5) is made of Q235-B steel plate and has a thickness of 0.5 mm.

9. The silencing device capable of effectively reducing the noise of the electromagnetic valve of the pneumatic conveying pipeline according to claim 1 is characterized in that: When the silencer column (3) and the baffle plate (5) are installed in the shell (2), the shell (2) is first cut open, and after the silencer column (3) and the baffle plate (5) are installed, the shell (2) is bonded with a strong glue.

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