CN220015491U

CN220015491U - Silencer

Info

Publication number: CN220015491U
Application number: CN202321388770.9U
Authority: CN
Inventors: 马明全; 吴晓云; 陆学贵
Original assignee: Zhejiang Boya Precision Machinery Co ltd
Current assignee: Zhejiang Boya Precision Machinery Co ltd
Priority date: 2023-06-01
Filing date: 2023-06-01
Publication date: 2023-11-14
Anticipated expiration: 2033-06-01

Abstract

The utility model discloses a silencer, comprising: the cylindrical shell comprises an inner layer and an outer layer, and a cavity for liquid circulation is arranged between the inner layer and the outer layer; the silencer comprises at least two silencing pipe bodies which are arranged in parallel, wherein the axis of the silencing pipe bodies is parallel to the axis of a cylindrical shell, an air inlet part and an air outlet part are arranged on the cylindrical shell, the air inlet part is communicated to the inside of the cylindrical shell, and the air outlet part is communicated with one silencing pipe body. The utility model can effectively utilize the inner space of the cylindrical shell, furthest utilizes the sound eliminating pipe body and the sound eliminating part, effectively removes noise in a limited space, and simultaneously cools the discharged hot gas through the water-cooling sandwich structure.

Description

Silencer

Technical Field

The utility model relates to the technical field of exhaust silencing, in particular to a silencer.

Background

The screw pump sucks and discharges the medium by utilizing the rotation of the screw, and due to the mutual engagement of the screws and the close fit of the screw and the inner wall of the lining barrel, one or more sealing spaces are separated between the suction inlet and the discharge outlet of the screw pump, and the sealing spaces are continuously formed at the suction end of the pump, the medium in the suction chamber is sealed in the sealing spaces, and the sealing spaces are continuously pushed to the discharge end along the axial direction of the screw from the suction chamber, so that the medium closed in the spaces is continuously discharged as if a nut is continuously pushed forward during the rotation of the screw, which is the principle of the screw pump.

Conventionally, a screw pump is largely exhausted during operation, and the noise of the exhaust is large, and a muffler needs to be arranged to eliminate the noise, for example, a water-cooled muffler disclosed in CN 203939565U. The water-cooled muffler comprises an inner silencing chamber, an exhaust pipeline and an ash discharge port, and further comprises a water jacket layer, wherein the water jacket layer is sleeved on the periphery of the inner silencing chamber.

However, such silencers have limited processing efficiency and are difficult to meet the high-displacement silencing requirements.

Disclosure of Invention

The utility model provides a high-efficiency silencer suitable for a screw pump, which aims to avoid the defects in the prior art.

The utility model solves the technical problems by adopting the following technical scheme: a muffler, comprising:

the cylindrical shell comprises an inner layer and an outer layer, and a cavity for liquid circulation is arranged between the inner layer and the outer layer;

the silencer comprises at least two silencing pipe bodies which are arranged in parallel, wherein the axis of the silencing pipe bodies is parallel to the axis of a cylindrical shell, an air inlet part and an air outlet part are arranged on the cylindrical shell, the air inlet part is communicated to the inside of the cylindrical shell, and the air outlet part is communicated with one silencing pipe body.

In several embodiments, a sealing body is disposed in the inner layer, and the sealing body surrounds the outer parts of the two silencing pipe bodies and is in fit connection with the inner wall of the inner layer.

In several embodiments, a plurality of connection plates are disposed between the two silencing pipe bodies, and the outer walls of the two silencing pipe bodies are attached to each other.

In several embodiments, the inner space of the cylindrical housing is divided by the sealing body into a first silencing part and a second silencing part with unequal volumes, the air inlet part corresponds to the position of the first silencing part, and the air inlet part is located at the middle position of the cylindrical housing.

In several embodiments, an end plate is further disposed on the cylindrical shell, where the end plate corresponds to the air outlet portion and is located at two opposite ends of the cylindrical shell, and a support body is disposed on the end plate, and extends to a silencing pipe body and is connected to an end of the silencing pipe body, and an axis of the silencing pipe body connected to the support body coincides with an axis of the cylindrical shell.

In several embodiments, there is a difference in distance between the ends of the two silencer pipes.

In several embodiments, the outer layer is provided with a water inlet and a water outlet, both of which are communicated to the cavity between the inner layer and the outer layer.

The utility model has the beneficial effects that:

the utility model can effectively utilize the inner space of the cylindrical shell, furthest utilizes the sound eliminating pipe body and the sound eliminating part, effectively removes noise in a limited space, and simultaneously cools the discharged hot gas through the water-cooling sandwich structure.

Drawings

The drawings described herein are for illustration purposes only of selected embodiments and are not intended to represent all possible implementations and should not be construed as limiting the scope of the present utility model.

Fig. 1 schematically shows a front view structure of a muffler in the present embodiment;

FIG. 2 schematically shows a side view structure of the muffler in the present embodiment;

FIG. 3 schematically illustrates the cross-sectional structure of FIG. 1;

fig. 4 schematically shows an enlarged structure of the portion a of fig. 3.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings, and for the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model but not all embodiments of the present utility model.

Accordingly, the following detailed description of the embodiments of the utility model, provided in connection with the accompanying drawings, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model, as all other embodiments that may be obtained by one of ordinary skill in the art without making inventive efforts based on the embodiments herein, are within the scope of this utility model.

As shown in fig. 1 to 4, the muffler in the present embodiment is suitable for noise elimination of screw pump exhaust, and is mainly composed of a cylindrical housing 10 and a muffler structure combined inside the cylindrical housing 10, and is capable of muffling exhaust gas by the muffler structure and reducing temperature of exhaust gas by the cylindrical housing 10 structure.

Specifically, the cylindrical shell 10 includes an inner layer 11 and an outer layer 12 coaxially disposed, a certain gap is formed between the inner layer 11 and the outer layer 12, a cavity 13 for cooling liquid such as cooling water to circulate is formed, a water inlet 121 and a water outlet 122 are disposed on the outer layer 12, the water inlet 121 and the water outlet 122 are all communicated to the cavity 13 between the inner layer 11 and the outer layer 12, the water inlet 121 and the water outlet 122 are respectively disposed at the front end and the rear end of the outer layer 12, and are disposed at two opposite sides, so that water can flow in and out respectively, and cooling of the internal air can be realized.

The cylindrical shell 10 is provided with an air inlet 110 and an air outlet 120, the air inlet 110 is communicated to the inside of the cylindrical shell 10, a flange structure is adopted and is positioned at the middle position of the cylindrical shell 10, the air outlet 120 and the end plates 14 are respectively positioned at two opposite ends of the cylindrical shell 10, the end plates 14 are used for sealing the end positions of the cylindrical shell 10 and are locked at the end parts of the cylindrical shell 10 through bolt structures, the air outlet 120 is of a flange structure and is also locked at the other end parts of the cylindrical shell 10 through bolts, and the air outlet 120 is used for being connected with external gas treatment equipment.

And the silencing structure is composed of two silencing pipe bodies 20 and one sealing body 30 which are arranged in parallel, wherein the axis of the silencing pipe bodies 20 is parallel to the axis of the cylindrical shell 10, the axis of one silencing pipe body 20 is coincident with the axis of the cylindrical shell 10, the silencing pipe bodies 20 coincident with the axis of the cylindrical shell 10 are connected with the air outlet part 120, namely one end of each silencing pipe body 20 is directly inserted into the air outlet part 120, a sealing ring is arranged between the two silencing pipe bodies to seal, and the distance difference exists between the two ends of the silencing pipe bodies 20.

The sealing body 30 is formed around the two silencing pipe bodies 20 and is bonded to the inner wall of the inner layer 11, so that the inner space of the tubular casing 10 is divided into a first silencing part 101 and a second silencing part 102 by the sealing body 30, and the air inlet part 110 corresponds to the first silencing part 101.

The end plate 14 is provided with a supporting body 131, the supporting body 131 extends to one silencing pipe body 20 and is connected with the end of the silencing pipe body, and the axis of the silencing pipe body 20 connected with the supporting body 131 coincides with the axis of the cylindrical shell 10.

When the utility model is used, cooling water is firstly introduced into the cavity 13 between the inner layer 11 and the outer layer 12 through the water inlet 121, the air inlet 110 is connected to the air outlet of the screw pump, the air enters the first silencing part 101 for first expansion as shown by the arrow direction in fig. 3, then the air winds to the right side inlet of the lower silencing pipe body 20, is sprayed out from the left side outlet of the silencing pipe body 20 and enters the second silencing part 102 for second expansion, and then enters the left side inlet of the central silencing pipe body 20 and is discharged from the air outlet 120, thereby eliminating noise through the volume change of the cavity.

All of the manners described herein may be performed in any suitable order. The use of any and all examples, or exemplary language (e.g., "such as") provided herein, is intended merely to better illuminate the utility model and does not pose a limitation on the scope of the utility model unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the utility model.

The present utility model describes preferred embodiments, including the best mode known to the inventors for carrying out the utility model. Variations of these preferred embodiments will, of course, be apparent to those skilled in the art. The inventors expect skilled artisans to employ such variations as appropriate, and the inventors intend for the utility model to be practiced otherwise than as specifically described herein. Accordingly, this utility model includes all modifications encompassed within the spirit and scope of the utility model as defined by the claims. Moreover, unless indicated otherwise or clearly contradicted by context, the present utility model includes any of the above-described factors and all possible variations thereof.

Claims

1. A muffler, comprising:

2. The silencer of claim 1, wherein a seal is disposed within the inner layer, and wherein the seal surrounds the exterior of the two silencer tubes and is bonded to the inner wall of the inner layer.

3. The silencer as claimed in claim 2, wherein a plurality of connection plates are provided between the two silencing tubes, and the outer walls of the two silencing tubes are attached to each other.

4. A muffler according to claim 3, wherein the inner space of the cylindrical housing is divided by the sealing body into a first muffler portion and a second muffler portion, and the intake portion corresponds to the position of the first muffler portion.

5. The muffler of claim 4, wherein an end plate is further provided on the cylindrical housing, the end plate corresponds to the position of the air outlet and is located at opposite ends of the cylindrical housing, a supporting body is provided on the end plate, the supporting body extends to a muffler pipe body and is connected to an end portion thereof, and an axis of the muffler pipe body connected to the supporting body coincides with an axis of the cylindrical housing.

6. A muffler according to claim 5, wherein there is a difference in distance between the ends of the two muffler pipes.

7. The muffler of claim 1, wherein the outer layer has a water inlet and a water outlet, both of which are connected to the cavity between the inner layer and the outer layer.