Efficient small-hole silencer

Abstract

The utility model discloses a high-efficiency small-hole silencer, which is characterized in that steam discharged from thermal equipment such as a boiler, a deaerator and the like enters a chamber from a steam inlet and is expanded and depressurized, and a part of steam is absorbed by a silencer and then is expanded and depressurized and discharged from a steam hole of an outer barrel, so that effective silencing is achieved; the small-hole silencer has the advantages that the whole small-hole silencer is simple in structure and good in recovery effect, noise is eliminated, and the environment is beautified. By changing the internal structure and optimizing the design scheme, the silencing effect is improved, the installation cost is reduced, and the silencer is worthy of popularization.

Description

Technical Field

[0001] The utility model relates to a small hole silencer, in particular to a boiler drum safety valve, a small hole silencer for exhausting steam to air. Background Art

[0002] With the rapid and sustained economic development, the industrialization process is also accelerating. In the fields of petroleum, chemical, metallurgy, thermal power, textile and other industries, thermal equipment such as boilers and deaerators need to discharge steam and other steam. Otherwise, the equipment will be damaged and the service life of the equipment will be reduced. At the same time, a large amount of noise pollution will be generated, which will cause trouble to the normal work of workers. Therefore, a mechanical equipment that can effectively eliminate noise is urgently needed.

[0003] The utility model discloses a high-efficiency small-hole silencer, which is composed of a steam inlet pipe, a sealing head, a cylinder, a secondary expansion body, a silencer and the like.

[0004] Steam emissions from thermal equipment such as boilers and deaerators enter the chamber from the steam inlet. After expansion and pressure reduction, part of the steam is absorbed by the silencer, and then the steam is expanded and pressure reduced again and discharged through the steam holes of the outer cylinder. The entire small-hole silencer has a simple structure, good recycling effect, eliminates noise, and beautifies the environment. By changing the internal structure, optimizing the design scheme, improving the silencing effect, and reducing the installation cost, it is worth promoting. Summary of the invention

[0005] The purpose of the utility model is to eliminate the noise emitted by thermal equipment such as boilers and deaerators, and beautify the environment at the same time.

[0006] The technical solution of this utility model is as follows:

[0007] A high-efficiency small-hole silencer comprises an outer cylinder, a cylindrical hole-mounted structure in the middle of the cylinder, and two ends are connected to a head. A secondary expansion body is arranged in the cylinder, and the secondary expansion body is a longitudinally arranged cylindrical perforated structure, one end of which is a steam inlet, and the other end is welded to the head. A steam inlet pipe is placed in the steam inlet end, and a silencer is installed on the inner wall of the cylinder. The silencer is arranged in parallel with perforated panels on both sides, and the two ends are fixed to the inner wall of the cylinder cavity. The middle of the silencer is meshed stainless steel.

[0008] The purpose of the utility model is achieved as follows: the steam discharged from thermal equipment such as boilers and deaerators enters the chamber from the steam inlet, and after expansion and pressure reduction, a part of the steam is sound-absorbing by the silencer, and then the steam is expanded and pressure-reduced again and discharged through the steam holes of the outer cylinder to achieve effective silencer.

[0009] As a further feature of the present invention, the steam inlet pipe is a longitudinally arranged cylindrical perforated structure, one end of which is a steam inlet and the other end is a head welded.

[0010] Furthermore, the secondary expansion body is a longitudinally arranged cylindrical perforated structure, one end of which is a steam inlet and the other end is a head welding.

[0011] Furthermore, the silencer is arranged in parallel with perforated panels on both sides, with both ends fixed in the cavity and a mesh stainless steel filler in the middle.

[0012] Furthermore, the outer cylinder has heads at the top and bottom, a cylindrical hole-mounted structure in the middle, and both ends are connected to the heads. Compared with the prior art, the utility model has the following beneficial effects: the entire small hole silencer has a simple structure, good recycling effect, eliminates noise, and beautifies the environment. By changing the internal structure, optimizing the design scheme, improving the silencing effect, and reducing the installation cost, it is worth promoting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the technical description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] Among them, 1-steam inlet pipe, 2-head, 3-cylinder, 4-secondary expansion body, 5-muffler DETAILED DESCRIPTION

[0016] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] like Figure 1 -steam inlet pipe, 2-head, 3-shell, 4-secondary expansion body, 5-muffler

[0018] Preferably, the steam inlet pipe 1 is a longitudinally arranged cylindrical perforated structure, one end of which is a steam inlet and the other end is a head welded.

[0019] By adopting the above technical solution, the steam inlet pipe 1 is provided with a longitudinal cylindrical perforated structure, one end of which is a steam inlet and the other end is welded with a head. The steam flow can be discharged evenly without being affected by load changes, while keeping the steam unobstructed.

[0020] Preferably, the secondary expansion body 4 is a longitudinally arranged cylindrical perforated structure, one end of which is a steam inlet and the other end is a head welding.

[0021] By adopting the above technical solution, a two-stage expansion body 4 is used to increase the flow area of ​​the steam, and at the same time change the steam flow direction, so that the steam flow expands and reduces the pressure, and reduces the impact sound between the steam flows.

[0022] Preferably, the silencer is arranged in parallel with perforated panels on both sides, with both ends fixed in the cavity and a mesh stainless steel in the middle.

[0023] The above technical solution is adopted, and the silencer is arranged in parallel with the perforated panels on both sides, and the two ends are fixed in the cavity.

[0024] The middle part is made of mesh stainless steel. The mesh filler increases the flow area of ​​steam and changes the direction of steam flow, which can achieve better sound-absorbing effect.

[0025] Preferably, the outer cylinder has sealing heads at the top and bottom, a cylindrical hole-mounted structure in the middle, and both ends are connected to the sealing heads.

[0026] By adopting the above technical solution, the cylindrical hole-mounted structure of the head 2 and the cylinder 3 is adopted, which can expand the capacity and reduce the pressure, and at the same time evenly disperse the airflow, which can not only reduce the noise but also achieve a better silencing effect.

[0027] The above technical solution is adopted to ensure that the steam flow is discharged from the side of the cylinder, thereby achieving a better noise reduction effect.

[0028] Steam from thermal equipment such as boilers and deaerators enters the chamber from the steam inlet, expands and reduces pressure, and a portion of the steam is absorbed by the silencer, and then expands and reduces pressure again, and is discharged through the steam holes of the outer cylinder, achieving effective silencer.

[0029] The small hole silencer is composed of: 1-steam inlet pipe, 2-head, 3-cylinder, 4-secondary expansion body, 5-silencing device, etc.

[0030] The final embodiment structure is: Figure 1 As shown, it includes an outer cylinder, a cylindrical hole-mounted structure in the middle of the cylinder, and both ends are connected to the head. The secondary expansion body is arranged in the cylinder. The secondary expansion body is a longitudinally arranged cylindrical perforated structure, one end of which is a steam inlet, and the other end is welded to the head. The steam inlet end is placed in the steam inlet pipe, and a silencer is installed on the inner wall of the cylinder. The silencer is arranged in parallel with perforated panels on both sides, and both ends are fixed to the inner wall of the cylinder cavity. The middle of the silencer is meshed stainless steel.

[0031] Steam from thermal equipment such as boilers and deaerators enters the chamber from the steam inlet. After expansion and pressure reduction, part of the steam is absorbed by the silencer, and then the steam is expanded and pressure reduced again and discharged through the steam holes of the outer cylinder. Effective silencing is achieved. The entire small-hole silencer has a simple structure, good recycling effect, eliminates noise, and beautifies the environment. By changing the internal structure, optimizing the design scheme, improving the silencing effect, and reducing the installation cost, it is worth promoting.

[0032] The above is a specific implementation method of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily conceived by technicians familiar with the field within the technical scope disclosed in the utility model should be covered within the protection scope of the utility model.

Claims

1. A high-efficiency small-hole silencer, characterized in that: It includes an external cylinder, a cylindrical hole-mounted structure in the middle of the cylinder, and both ends are connected to the head. The secondary expansion body is arranged in the cylinder. The secondary expansion body is a longitudinally arranged cylindrical perforated structure, one end of which is a steam inlet, and the other end is welded to the head. The steam inlet end is inserted into the steam inlet pipe. A silencer is installed on the inner wall of the cylinder. The silencer is arranged in parallel with perforated panels on both sides, and both ends are fixed to the inner wall of the cylinder cavity. The middle of the silencer is meshed stainless steel.

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