Roots blower outlet pipeline buffer

Abstract

The utility model relates to the technical field of oxygen production industry, in particular to a Roots blower outlet pipeline buffer, which comprises an air inlet connecting pipe, a mounting mechanism, a plurality of honeycomb devices and an exhaust connecting pipe, the mounting mechanism comprises a shell and a plurality of end plates, each honeycomb device comprises a honeycomb main body, a porous buffer pipe, a first sheet type buffer pipe and a second sheet type buffer pipe, the air inlet connecting pipe is communicated with the left end of the shell, the exhaust connecting pipe is communicated with the right end of the shell, and the end plates are arranged on the shell. Air flow sequentially flows into the honeycomb devices through the air inlet connecting pipe, through the arrangement of the porous buffer pipe, the first piece type buffer pipe and the second piece type buffer pipe, the air flow continuously vibrates and attenuates, the air flow impacts on the end plate and is dispersed in the cavity in the shell, the air flow vibrates and attenuates again, and then the air flow is exhausted from the air exhaust connecting pipe. Therefore, the resonance of the outlet pipeline of the Roots blower can be eliminated, the overall noise of equipment operation is greatly reduced, and the injury to personnel is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen production industry, in particular to an outlet pipeline buffer of a Roots blower. Background Art

[0002] Pressure swing adsorption oxygen production equipment is a device that can produce high-purity oxygen by selectively adsorbing impurities such as nitrogen, carbon dioxide and water in the air using PSA special molecular sieves under normal temperature and pressure conditions.

[0003] The air outlet duct of a PSA oxygen generator is typically equipped with a Roots blower, often referred to as a Roots blower, to assist in air discharge. A Roots blower is a positive displacement blower primarily composed of a casing, impeller, bearings, gears, and a drive unit. The casing is the primary component of the Roots blower, supporting and securing the other components while also creating a smooth gas flow path. The impeller is the core component of the Roots blower, generating gas pressure through rotation to achieve gas transport.

[0004] However, in the aforementioned prior art, the fan outlet pipe of the pressure swing adsorption oxygen production equipment vibrates greatly due to the constant pressure changes and short change cycles. In addition, the disadvantage of the Roots blower is that it is noisy and the noise frequency is low, which is difficult to eliminate. Utility Model Content

[0005] The purpose of the utility model is to provide a Roots blower outlet pipe buffer, which solves the problem that the fan outlet pipe of the pressure swing adsorption oxygen making equipment in the prior art vibrates greatly due to the constant change of pressure and the short change cycle. In addition, the disadvantage of the Roots blower is that the noise is loud and the noise frequency is low, which is difficult to eliminate.

[0006] To achieve the above-mentioned purpose, the present invention provides a Roots blower outlet pipe buffer, including an air intake pipe, a mounting mechanism, multiple honeycombs and an exhaust pipe, the mounting mechanism including a shell and multiple end plates, each of the honeycombs including a honeycomb body, a porous buffer tube, a first sheet buffer tube and a second sheet buffer tube, the air intake pipe is connected to the left end of the shell, the exhaust pipe is connected to the right end of the shell, multiple end plates are respectively arranged on the shell, multiple honeycomb bodies are respectively arranged on the corresponding end plates, the porous buffer tube, the first sheet buffer tube and the second sheet buffer tube are respectively arranged in the honeycomb body.

[0007] Wherein, the mounting mechanism further includes two lifting ears, and the two lifting ears are respectively arranged at the upper ends of the shell.

[0008] The porous buffer tube has a plurality of holes, the first sheet-type buffer tube has a plurality of vertical grooves, and the second sheet-type buffer tube has a plurality of transverse grooves.

[0009] Among them, the Roots blower outlet pipe buffer also includes a fan, a muffler and a filter. The muffler is arranged at the upper end of the fan, the filter is arranged at the upper end of the muffler, and the air outlet of the fan is connected to the air inlet pipe.

[0010] Wherein, the outlet pipe buffer of the Roots blower further includes a pressure relief valve and a butterfly valve, the butterfly valve is arranged on the air outlet of the blower, and the pressure relief valve is arranged above the butterfly valve.

[0011] The utility model provides a Roots blower outlet pipe buffer, in which the airflow flows into the multiple honeycombs in sequence through the air inlet pipe, and the airflow is continuously vibrated and attenuated by the arrangement of the porous buffer tube, the first plate buffer tube and the second plate buffer tube, and the airflow impacts the end plate and diffuses in the cavity inside the shell, so that the airflow is vibrated and attenuated again, and then the airflow is discharged from the exhaust pipe, thereby eliminating the resonance of the Roots blower outlet pipe and greatly reducing the overall noise of the equipment operation, thereby avoiding harm to personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a partial front view of the utility model.

[0015] Figure 3 It is a partial rear view of the utility model.

[0016] Figure 4 It is a cross-sectional view of the honeycomb device of the present invention.

[0017] Figure 5 It is a cross-sectional view of the porous buffer tube of the present utility model.

[0018] Figure 6 It is a cross-sectional view of the first piece buffer tube of the utility model.

[0019] Figure 7 It is a cross-sectional view of the second piece buffer tube of the utility model.

[0020] 1-inlet pipe, 2-honeycomb, 3-exhaust pipe, 4-shell, 5-end plate, 6-honeycomb body, 7-porous buffer tube, 8-first-piece buffer tube, 9-second-piece buffer tube, 10-lifting ear, 11-hole, 12-vertical groove, 13-horizontal groove, 14-fan, 15-muffler, 16-filter, 17-pressure relief valve, 18-butterfly valve. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0022] See also Figures 1 to 7 ,in, Figure 1 It is a schematic diagram of the overall structure of the utility model. Figure 2 It is a partial front view of the utility model. Figure 3 It is a partial rear view of the utility model. Figure 4 This is a cross-sectional view of the honeycomb 2 of the present invention. Figure 5 This is a cross-sectional view of the porous buffer tube 7 of the present invention. Figure 6 This is a cross-sectional view of the first piece buffer tube 8 of the present invention. Figure 7 It is a cross-sectional view of the second piece-type buffer tube 9 of the present invention.

[0023] The utility model provides an outlet pipe buffer of a Roots blower 14, comprising an air intake pipe 1, a mounting mechanism, a plurality of honeycombs 2 and an exhaust pipe 3, wherein the mounting mechanism comprises a shell 4 and a plurality of end plates 5, each of the honeycombs 2 comprises a honeycomb body 6, a porous buffer tube 7, a first sheet-type buffer tube 8 and a second sheet-type buffer tube 9, the air intake pipe 1 is connected to the left end of the shell 4, the exhaust pipe 3 is connected to the right end of the shell 4, the plurality of end plates 5 are respectively arranged on the shell 4, the plurality of honeycomb bodies 6 are respectively arranged on the corresponding end plates 5, the porous buffer tube 7, the first sheet-type buffer tube 8 and the second sheet-type buffer tube 9 are respectively arranged in the honeycomb body 6.

[0024] In this embodiment, the airflow flows into the multiple honeycombs 2 in sequence through the air inlet pipe 1. The airflow is continuously vibrated and attenuated by the arrangement of the porous buffer tube 7, the first plate buffer tube 8 and the second plate buffer tube 9. The airflow impacts the end plate 5 and diffuses in the cavity inside the shell 4, causing the airflow to vibrate and attenuate again. Then, the airflow is discharged from the exhaust pipe 3, thereby eliminating the resonance of the outlet pipe of the Roots blower 14 and greatly reducing the overall noise of the equipment operation, thereby avoiding harm to personnel.

[0025] Furthermore, the mounting mechanism further includes two lifting ears 10 , and the two lifting ears 10 are respectively arranged at the upper ends of the shell 4 .

[0026] In this embodiment, the two lifting ears 10 facilitate the subsequent installation of the housing 4 on the equipment for use.

[0027] Furthermore, the porous buffer tube 7 has a plurality of holes 11 , the first sheet-type buffer tube 8 has a plurality of vertical grooves 12 , and the second sheet-type buffer tube 9 has a plurality of transverse grooves 13 .

[0028] In this embodiment, the airflow is attenuated by vibration through the airflow channel formed by the plurality of holes 11 , the plurality of vertical grooves 12 and the plurality of transverse grooves 13 .

[0029] Furthermore, the outlet pipe buffer of the Roots blower 14 also includes a fan 14, a muffler 15 and a filter 16, the muffler 15 is arranged at the upper end of the fan 14, the filter 16 is arranged at the upper end of the muffler 15, and the air outlet of the fan 14 is connected to the air intake pipe 1.

[0030] In this embodiment, after the oxygen generator is completed, the air flow enters the filter 16, the impurities in the air flow are filtered by the filter 16, and then passes through the muffler 15 to reduce the noise. Then the air flow passes through the outlet duct of the fan 14 and enters the inside of the air intake pipe 1 for further shock absorption and silencing.

[0031] Furthermore, the outlet pipeline buffer of the Roots blower 14 further includes a pressure relief valve 17 and a butterfly valve 18 . The butterfly valve 18 is arranged on the air outlet of the blower 14 , and the pressure relief valve 17 is arranged above the butterfly valve 18 .

[0032] In this embodiment, the flow rate of the airflow can be adjusted by the butterfly valve 18, and the provision of the pressure relief valve 17 can timely relieve the pressure when the internal pressure exceeds the standard to avoid accidents.

[0033] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A Roots blower outlet pipe buffer, characterized in that: It includes an air intake pipe, a mounting mechanism, a plurality of honeycombs and an exhaust pipe; The mounting mechanism includes a shell and multiple end plates. Each of the honeycombs includes a honeycomb body, a porous buffer tube, a first sheet-type buffer tube, and a second sheet-type buffer tube. The air intake pipe is connected to the left end of the shell, and the exhaust pipe is connected to the right end of the shell. Multiple end plates are respectively arranged on the shell, and multiple honeycomb bodies are respectively arranged on the corresponding end plates. The porous buffer tube, the first sheet-type buffer tube, and the second sheet-type buffer tube are respectively arranged in the honeycomb body.

2. The outlet pipe buffer of the Roots blower according to claim 1, characterized in that: The mounting mechanism further includes two lifting ears, which are respectively arranged at the upper ends of the shell.

3. The outlet pipe buffer of the Roots blower according to claim 2, characterized in that: The porous buffer tube has a plurality of holes, the first sheet-type buffer tube has a plurality of vertical grooves, and the second sheet-type buffer tube has a plurality of transverse grooves.

4. The outlet pipe buffer of the Roots blower according to claim 3, characterized in that: The Roots blower outlet pipe buffer also includes a fan, a muffler and a filter. The muffler is arranged at the upper end of the fan, the filter is arranged at the upper end of the muffler, and the air outlet of the fan is connected to the air inlet pipe.

5. The outlet pipe buffer of the Roots blower according to claim 4, characterized in that: The outlet pipeline buffer of the Roots blower further includes a pressure relief valve and a butterfly valve. The butterfly valve is arranged on the air outlet of the blower, and the pressure relief valve is arranged above the butterfly valve.

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