Pulse type aerator of MBR (Membrane Bioreactor) membrane

Abstract

The utility model discloses a pulse type aerator of an MBR (Membrane Bioreactor) membrane, which comprises an aeration fan and further comprises a gas transmission component, the gas transmission component comprises a gas transmission pipeline arranged at the gas transmission end of the aeration fan, and a membrane pool aeration pipe is arranged at the output end of the gas transmission pipeline; the air outlet assembly is arranged on the outer side of the membrane pool aerator pipe and comprises an air storage chamber arranged on the outer side of the membrane pool aerator pipe, a connecting column is arranged at the air outlet end of the air storage chamber, a pressure release valve is arranged at the top end of the connecting column, a time delay part is arranged on the side of the connecting column, and a guide part is arranged on the top of the air storage chamber; the gas outlet assembly is arranged on the outer side of the aeration pipe of the membrane tank, the gas outlet assembly is provided with the gas storage chamber for collecting gas, after the opening pressure is reached, the pressure release valve is opened for exhausting, the high-pressure gas exhausted by the pressure release valve increases the aeration pressure and increases the scouring force of the surface of an MBR membrane, and the time delay part can be adjusted according to the actual pressure of each part of the pipeline. The ventilation time delay of the air storage chambers is adjusted, so that the air storage chambers can realize gradual aeration.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment equipment field especially relates to a pulse type aerator of MBR membrane. BACKGROUND

[0002] At present, in rural sewage treatment integrated facilities, there are a large number of MBR membrane process sewage treatment facilities, which are integrated through an aerobic tank and a membrane tank, reduce the land area while reaching the treatment effect, but the aerobic tank and the membrane tank are concentrated, and MBR membrane blockage easily occurs in operation, the turbulence degree of MBR membrane group is limited under the aeration of the aerobic tank, cannot reach the effect of flushing the pollutants on the membrane surface, and the MBR membrane self-priming pump accelerates the adsorption of sludge on the membrane surface in the process of pumping, causes a large amount of sludge to adhere to the membrane surface, affects the effluent of the sewage treatment facility, therefore, in order to increase the aeration intensity of the MBR membrane tank, a new pulse type aerator of MBR membrane is required. UTILITY MODEL CONTENTS

[0003] The utility model discloses a pulse type aerator of MBR membrane to solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a pulse type aerator of MBR membrane, including aerator fan, still including:

[0005] Gas delivery assembly, the gas delivery assembly is used for transmitting gas to the membrane tank, the gas delivery assembly includes the gas delivery pipeline arranged at the gas delivery end of the aerator fan, and the output end of the gas delivery pipeline is provided with the membrane tank aeration pipe;

[0006] Gas outlet assembly, the gas outlet assembly is arranged at the outer side of the membrane tank aeration pipe, and the gas outlet assembly is used for aeration, the gas outlet assembly includes the gas storage chamber arranged at the outer side of the membrane tank aeration pipe, the gas outlet end of the gas storage chamber is provided with the connecting column, the top end of the connecting column is provided with the pressure relief valve, the side of the connecting column is provided with the delay part for controlling the work of the pressure relief valve, and the top of the gas storage chamber is provided with the guide part for limiting the gas outlet direction of the pressure relief valve.

[0007] Preferably, the end of the connecting column is provided with the gas inlet cavity and the gas outlet cavity, and the gas inlet cavity and the gas outlet cavity are used for the communication of the delay part.

[0008] Preferably, the delay part includes the delay sleeve arranged at the side of the connecting column, the inside of the delay sleeve is provided with the compression spring, one end of the compression spring close to the gas inlet cavity is provided with the pressure bearing plate, the other end of the compression spring is provided with the adjusting part for adjusting the elasticity of the compression spring, the outer side of the delay sleeve is provided with the communication pipe, and the gas outlet end of the communication pipe is fixedly connected with the side of the connecting column.

[0009] Preferably, the adjusting member comprises an adjusting bolt, an end of the adjusting bolt is threadedly connected to an end of the delay sleeve, and the end of the adjusting bolt located at the other end of the compression spring is provided with a pressing plate.

[0010] Preferably, the pressing plate is provided with a limiting protrusion on the side, and the limiting protrusion is used for limiting the compression deformation of the compression spring.

[0011] Preferably, the guide portion comprises a gas outlet pipe arranged at the top of the gas storage chamber, the pressure relief valve is arranged in the inner cavity of the gas outlet pipe, and the gas outlet pipe is provided with a movable hole through which the adjusting bolt penetrates.

[0012] Preferably, a one-way valve is arranged at the connection between the membrane pool aeration pipe and the gas storage chamber, and the one-way valve is used for preventing gas backflow.

[0013] The technical effects and advantages of the present application are as follows:

[0014] The present application is provided with a gas outlet assembly outside the membrane pool aeration pipe, the gas storage chamber in the gas outlet assembly is used for collecting gas, after the opening pressure of the pressure relief valve is reached, the pressure relief valve is opened to exhaust, the high-pressure gas exhausted by the pressure relief valve increases the aeration pressure, thereby increasing the scouring intensity on the surface of the MBR membrane, and the delay portion can adjust the ventilation delay of the gas storage chamber according to the actual pressure of each part of the pipeline, so that the plurality of gas storage chambers can realize step-by-step aeration. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the whole application.

[0016] Figure 2 It is a sectional view of the gas outlet assembly of the present application.

[0017] Figure 3 It is a sectional view of the delay portion of the present application.

[0018] Figure 4 It is a structural schematic view of the delay sleeve of the present application.

[0019] In the figure: 1, aeration fan; 2, gas conveying pipeline; 3, membrane pool aeration pipe; 301, one-way valve; 4, gas outlet assembly; 401, gas storage chamber; 402, connecting column; 403, pressure relief valve; 404, gas outlet pipe; 405, delay portion; 406, communication pipe; 4021, gas inlet cavity; 4022, gas outlet cavity; 4051, delay sleeve; 4052, compression spring; 4053, pressing plate; 4054, pressure bearing plate; 4055, adjusting bolt. DETAILED DESCRIPTION

[0020] Clearly and completely describe the technical scheme in the embodiments of the utility model with the drawings in the embodiments of the utility model below, obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] The utility model provides a kind of pulse type aerator of MBR membrane as Figures 1-4 As shown in a kind of pulse type aerator of MBR membrane, including aeration fan 1, still including gas delivery assembly and gas outlet assembly 4;

[0022] Specifically, gas delivery assembly is used to transmit gas to membrane pool, and gas delivery assembly includes gas delivery pipeline 2 arranged at the gas delivery end of aeration fan 1, and the output end of gas delivery pipeline 2 is provided with membrane pool aeration pipe 3;

[0023] It needs to be explained that gas delivery pipeline 2 and membrane pool aeration pipe 3 are all used PPR pipe;

[0024] Specifically, gas outlet assembly 4 is arranged at the outside of membrane pool aeration pipe 3, and gas outlet assembly 4 is used for aeration, and gas outlet assembly 4 includes gas storage chamber 401 arranged at the outside of membrane pool aeration pipe 3, the gas outlet end of gas storage chamber 401 is provided with connecting column 402, and the top end of connecting column 402 is provided with pressure relief valve 403;

[0025] It needs to be explained that the connecting place of membrane pool aeration pipe 3 and gas storage chamber 401 is provided with one-way valve 301, one-way valve 301 is used to prevent gas backflow, one-way valve 301 is used to prevent the gas in gas storage chamber 401 from returning to membrane pool aeration pipe 3, connecting column 402 and the top of gas storage chamber 401 are welded and fixed, and the top of gas storage chamber 401 is provided with gas outlet hole;

[0026] The side of connecting column 402 is provided with delay part 405 for controlling the work of pressure relief valve 403, and the top of gas storage chamber 401 is provided with guide part for limiting the gas outlet direction of pressure relief valve 403;

[0027] It needs to be explained that the end of connecting column 402 is provided with gas inlet cavity 4021 and gas outlet cavity 4022, gas inlet cavity 4021 and gas outlet cavity 4022 are used for the communication of delay part 405, and gas inlet cavity 4021 is communicated with the gas outlet hole of gas storage chamber 401;

[0028] Specifically, delay part 405 includes delay sleeve 4051 arranged at the side of connecting column 402, the inside of delay sleeve 4051 is provided with compression spring 4052, one end of compression spring 4052 close to gas inlet cavity 4021 is provided with pressure-bearing plate 4054, the outside of delay sleeve 4051 is provided with communication pipe 406, and the gas outlet end of communication pipe 406 is fixedly connected with the side of connecting column 402.

[0029] It should be noted that the delay sleeve 4051 is welded and fixed on the side of the connecting column 402, so that the inside of the air inlet cavity 4021 is communicated with the delay sleeve 4051, the communication pipe 406 is communicated with the through hole opened at the top of the delay sleeve 4051, the connection between the communication pipe 406 and the delay sleeve 4051 is welded and fixed, the pressure bearing plate 4054 is in close contact with the inner wall of the delay sleeve 4051, the side of the pressure bearing plate 4054 is provided with a protrusion for limiting the extrusion of the compression spring 4052, the communication pipe 406 is welded and fixed on the side of the connecting column 402, the communication pipe 406 is communicated with the air outlet cavity 4022, the air outlet cavity 4022 is communicated with the pressure relief valve 403, and the pressure relief valve 403 is welded and fixed on the top of the connecting column 402;

[0030] The other end of the compression spring 4052 is provided with an adjusting part for adjusting the elastic force of the compression spring 4052;

[0031] Specifically, the adjusting part comprises an adjusting bolt 4055, the end of the adjusting bolt 4055 is threadedly connected to the end of the delay sleeve 4051, and the end of the adjusting bolt 4055 located at the other end of the compression spring 4052 is provided with an extrusion plate 4053;

[0032] It should be noted that the extrusion plate 4053 is provided with a limiting protrusion on the side, the limiting protrusion is used for limiting the compression deformation of the compression spring 4052, the end of the delay sleeve 4051 is provided with a threaded hole for the insertion of the adjusting bolt 4055, the extrusion plate 4053 is moved by the rotating adjusting bolt 4055, and the extrusion plate 4053 and the adjusting bolt 4055 are not fixed, the deformation length of the compression spring 4052 is adjusted, the elastic force of the compression spring 4052 is changed, the moving speed of the extrusion plate 4053 pushed by the air pressure is changed, and the delay effect is realized;

[0033] Specifically, the guide part comprises an air outlet pipe 404 arranged on the top of the gas storage chamber 401, the pressure relief valve 403 is arranged in the inner cavity of the air outlet pipe 404, and the air outlet pipe 404 is provided with a movable hole for the insertion of the adjusting bolt 4055 on the side;

[0034] It should be noted that the air outlet pipe 404 is fixedly connected to the top of the gas storage chamber 401 by glue, and the air outlet pipe 404 is used for guiding the air bubbles generated by the pressure relief valve 403;

[0035] In actual use, by setting the gas outlet assembly 4 outside the membrane pool aeration pipe 3, the gas is collected by the gas storage chamber 401 in the gas outlet assembly 4, and after the opening pressure of the pressure relief valve 403 is reached, the pressure relief valve 403 is opened to exhaust, the high-pressure gas discharged by the pressure relief valve 403 increases the aeration pressure, thereby increasing the scouring intensity on the surface of the MBR membrane, and the delay part 405 can adjust the ventilation delay of the gas storage chamber 401 according to the actual pressure of each part of the pipeline, so that multiple gas storage chambers 401 can realize step-by-step delay aeration.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A pulse aerator for MBR membranes comprising an aerator blower (1), characterized in that, Also include: Gas delivery assembly for delivering gas to the membrane tank, which includes a gas delivery pipe (2) arranged at the gas delivery end of the aeration blower (1), and the output end of the gas delivery pipe (2) is provided with a membrane tank aeration pipe (3); Gas outlet assembly (4) is arranged outside the membrane tank aeration pipe (3), which is used for aeration, and the gas outlet assembly (4) includes a gas storage chamber (401) arranged outside the membrane tank aeration pipe (3), the gas outlet end of the gas storage chamber (401) is provided with a connecting column (402), the top end of the connecting column (402) is provided with a pressure relief valve (403), the side of the connecting column (402) is provided with a delay part (405) for controlling the operation of the pressure relief valve (403), and the top of the gas storage chamber (401) is provided with a guide part for limiting the gas outlet direction of the pressure relief valve (403).

2. A pulse aerator for MBR membranes according to claim 1, characterized in that, The end of the connecting column (402) is provided with an air inlet cavity (4021) and an air outlet cavity (4022), which are used for the communication of the delay part (405).

3. The pulse aerator of claim 1, wherein, The delay part (405) includes a delay sleeve (4051) arranged on the side of the connecting column (402), the inside of the delay sleeve (4051) is provided with a compression spring (4052), one end of the compression spring (4052) close to the air inlet cavity (4021) is provided with a pressure bearing plate (4054), the other end of the compression spring (4052) is provided with an adjusting piece for adjusting the elastic force of the compression spring (4052), and the outside of the delay sleeve (4051) is provided with a communication pipe (406), the air outlet end of the communication pipe (406) is fixedly connected with the side of the connecting column (402).

4. A pulse aerator for MBR membranes according to claim 3, characterized in that, The adjusting piece includes an adjusting bolt (4055), the end of the adjusting bolt (4055) is threadedly connected with the end of the delay sleeve (4051), and the end of the adjusting bolt (4055) and located at the other end of the compression spring (4052) is provided with a pressing plate (4053).

5. A pulse aerator for MBR membranes according to claim 4, characterized in that, The side of the pressing plate (4053) is provided with a limiting protrusion for limiting the compression deformation of the compression spring (4052).

6. A pulse aerator for MBR membranes according to claim 4, characterized in that, The guide part includes an air outlet pipe (404) arranged at the top of the gas storage chamber (401), the pressure relief valve (403) is arranged in the inner cavity of the air outlet pipe (404), and the side of the air outlet pipe (404) is provided with a movable hole for the penetration of the adjusting bolt (4055).

7. The pulse aerator of claim 1, wherein, The connection between the membrane tank aeration pipe (3) and the gas storage chamber (401) is provided with a one-way valve (301), which is used to prevent gas backflow.

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