Large-displacement pressure-resistant silencer

Abstract

The large-displacement pressure-resistant silencer comprises a first thick-wall pipe and a second thick-wall pipe, the first thick-wall pipe and the second thick-wall pipe are both filled with abrasion-resistant grid meshes covering the sections of the pipes, a first sealing plate is arranged at one end of the first thick-wall pipe, a hole is formed in the center of the first sealing plate, and the first sealing plate is connected with a connecting pipe with a threaded connector. The connecting pipe coincides with the axis of the first thick-wall pipe, the threaded connector faces the side away from the first thick-wall pipe, the other end of the first thick-wall pipe is detachably connected with the second thick-wall pipe, a partition plate is installed between the first thick-wall pipe and the second thick-wall pipe, and a plurality of holes are formed in the periphery of the partition plate at equal angles. A second sealing plate is arranged at the end, away from the first thick-wall pipe, of the second thick-wall pipe, and an exhaust hole is formed in the center of the second sealing plate. The structure is simple, the machining process is simple, machining and manufacturing are easy, manufacturing is convenient, cost is low, repeated use can be achieved, and the single-time use cost can be reduced by 90%.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting silencers, and particularly relates to a large-displacement pressure-resistant silencer. Background Art

[0002] The instantaneous exhaust volume of the air compressor dryer is large, and the noise is seriously exceeded, so a muffler is needed for silencing. Most of the existing mufflers on the market use silencing cotton for sound insulation. The foundry industry environment is relatively poor, and the mufflers on the market are prone to clogging, have a service life of less than 3 months, cannot be reused, and are relatively expensive. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a large-displacement pressure-resistant muffler.

[0004] The technical solution adopted by the utility model is a large-displacement pressure-resistant silencer, comprising a first thick-walled tube and a second thick-walled tube, the first thick-walled tube and the second thick-walled tube are both filled with wear-resistant grid meshes covering the tube cross-sections, a first sealing plate is arranged at one end of the first thick-walled tube, a hole is arranged at the center of the first sealing plate and is connected to a connecting pipe with a threaded joint, the connecting pipe coincides with the axis of the first thick-walled tube, and the threaded joint faces a side away from the first thick-walled tube, the other end of the first thick-walled tube is detachably connected to the second thick-walled tube, and a partition is installed between the first thick-walled tube and the second thick-walled tube, a plurality of holes are arranged at equal angles around the partition, and a second sealing plate is arranged at an end of the second thick-walled tube away from the first thick-walled tube, and an exhaust hole is arranged at the center of the second sealing plate.

[0005] Furthermore, both adjacent ends of the first thick-walled tube and the second thick-walled tube are provided with connecting flanges extending outwardly along the end sides, and the partition is a flange plate, and the three are connected and fixed by bolts, nuts and gaskets.

[0006] Further, the connecting pipe is detachably mounted on the first sealing plate.

[0007] Furthermore, a limiting ring is fixedly connected to the shaft of the connecting pipe, the end of the connecting pipe extends into the central hole of the first sealing plate, the limiting ring abuts against the outer surface of the first sealing plate, and the end of the connecting pipe is provided with an external thread and is threadedly connected to a fixing nut.

[0008] Further, the silencers are connected in parallel combination to the exhaust duct of the equipment.

[0009] The utility model has the following beneficial effects:

[0010] The structure is simple, the processing technology is simple, it is easy to process and manufacture, the production is convenient, the cost is low, and it is reusable, which can reduce the cost of single use by 90%. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1It is a side cutaway view of the utility model;

[0012] Figure 2 It is a front view of the partition of the utility model;

[0013] Figure 3 It is the installation front view of the utility model;

[0014] Figure 4 It is an installation side view of the utility model.

[0015] In the figure: 1—connecting pipe; 2—limiting ring; 3—first sealing plate; 4—fixing nut; 5—first thick-walled pipe; 6—wear-resistant grid mesh; 7—connecting flange; 8—partition; 9—bolt; 10—second thick-walled pipe; 11—second sealing plate. DETAILED DESCRIPTION

[0016] In order to better understand the purpose, structure and function of the utility model, a large-displacement pressure-resistant silencer of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] like Figure 1 and Figure 2 As shown, a large-displacement pressure-resistant silencer includes a first thick-walled tube 5 and a second thick-walled tube 10, both of which are filled with wear-resistant grid meshes 6 covering the tube cross-sections, a first sealing plate 3 is arranged at one end of the first thick-walled tube 5, a hole is arranged at the center of the first sealing plate 3 and a connecting pipe 1 with a threaded joint is connected, the connecting pipe 1 coincides with the axis of the first thick-walled tube 5, the threaded joint faces the side away from the first thick-walled tube 5, the other end of the first thick-walled tube 5 is detachably connected to the second thick-walled tube 10, and a partition plate 8 is installed between the first thick-walled tube 5 and the second thick-walled tube 10, a plurality of holes are arranged at equal angles on the partition plate 8, and a second sealing plate 11 is arranged at the end of the second thick-walled tube 10 away from the first thick-walled tube 5, an exhaust hole is arranged at the center of the second sealing plate 11.

[0018] The utility model is made of seamless steel pipes, steel plates, mesh plates, bolts and other materials, and is processed by using processes and equipment including gas cutting, welding, lathes, drilling machines and the like.

[0019] In this embodiment, both adjacent ends of the first thick-walled tube 5 and the second thick-walled tube 10 are provided with connecting flanges 7 extending outward along the end side, and the partition plate 8 is a flange plate. The three are connected and fixed by bolts 9, nuts and gaskets.

[0020] The connecting pipe 1 is detachably mounted on the first sealing plate 3. Specifically, a limiting ring 2 is fixedly connected to the shaft of the connecting pipe 1. The end of the connecting pipe 1 extends into the center hole of the first sealing plate 3. The limiting ring 2 abuts against the outer surface of the first sealing plate 3. The end of the connecting pipe 1 is provided with an external thread and is threadedly connected to a fixing nut 4.

[0021] like Figure 3 and Figure 4 As shown, by calculating the exhaust volume, exhaust pipe diameter and exhaust speed of the cold dryer, the muffler of the utility model is connected to the exhaust duct of the air compressor in parallel combination, the exhaust duct of the air compressor cold dryer is connected to the joint of the muffler connecting pipe 1, through the wear-resistant grid mesh 6 filled between the internal perforated partitions 8, and finally discharged through the second sealing plate 11 with exhaust holes in the lower muffler shell, the air inlet passes through the partition 8 and then to the exhaust port, the air ducts are staggered, wind shear is reduced, and the service life of the mechanism can be protected.

[0022] The utility model can have a single service life of more than five years. When the noise exceeds the standard, the internal wear-resistant grid mesh 6 can be replaced to achieve repeated use, reducing the use cost by more than 90%. When replacing the wear-resistant grid mesh 6, it is only necessary to disassemble the bolts 9 connected at the connecting flange 7 and replace the wear-resistant grid mesh 6. After testing, the air inlet speed is 11.5m / s and the outlet noise does not exceed 60 decibels.

[0023] It should be noted that the utility model can also be used for other equipment that requires exhaust, such as core shooting machines and air compressors in casting production.

[0024] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A large displacement pressure-resistant muffler, characterized in that: The invention comprises a first thick-walled tube (5) and a second thick-walled tube (10), wherein the first thick-walled tube (5) and the second thick-walled tube (10) are both filled with wear-resistant grid mesh sheets (6) covering the tube cross-section, a first sealing plate (3) is arranged at one end of the first thick-walled tube (5), a hole is arranged at the center of the first sealing plate (3) and a connecting tube (1) with a threaded joint is connected, the connecting tube (1) and the axis of the first thick-walled tube (5) coincide with each other, and the threaded joint faces a side away from the first thick-walled tube (5), the other end of the first thick-walled tube (5) is detachably connected to the second thick-walled tube (10), and a partition plate (8) is installed between the first thick-walled tube (5) and the second thick-walled tube (10), and a plurality of holes are arranged at equal angles on the partition plate (8), and a second sealing plate (11) is arranged at the end of the second thick-walled tube (10) away from the first thick-walled tube (5), and an exhaust hole is arranged at the center of the second sealing plate (11).

2. The large displacement pressure-resistant muffler according to claim 1, characterized in that: Both ends of the first thick-walled tube (5) and the second thick-walled tube (10) are adjacent to each other and are provided with connecting flanges (7) extending outwardly along the end sides; the partition plate (8) is a flange plate; the three are connected and fixed by bolts (9) in combination with nuts and gaskets.

3. The large displacement pressure-resistant muffler according to claim 1, characterized in that: The connecting pipe (1) is detachably mounted on the first sealing plate (3).

4. The large displacement pressure-resistant muffler according to claim 3, characterized in that: A limiting ring (2) is fixedly connected to the shaft of the connecting pipe (1), the end of the connecting pipe (1) extends into the central hole of the first sealing plate (3), the limiting ring (2) abuts against the outer surface of the first sealing plate (3), and the end of the connecting pipe (1) is provided with an external thread and is threadedly connected to a fixing nut (4).

5. The large displacement pressure-resistant muffler according to any one of claims 1 to 4, characterized in that: The silencers are connected in parallel combination to the exhaust pipes of the equipment.

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