Blower device for wastewater circulation

Abstract

The utility model provides a waste water circulation blower device which comprises a bottom frame, a top frame is arranged over the bottom frame, a rotor chamber is installed on one side of the upper surface of the top frame, an air filter is installed on the upper surface of the rotor chamber, and an air outlet pipe is installed on the lower surface of the rotor chamber. A detachable L-shaped pipe is installed at the end, away from the rotor chamber, of the air outlet pipe, the section, away from the air outlet pipe, of the L-shaped pipe is horizontally arranged, and a detachable straight cylinder is installed at the end, away from the air outlet pipe, of the L-shaped pipe. A plurality of pipe joints which are respectively connected with a plurality of independent aeration pipes in the sewage pool through one-way valves are equidistantly mounted at one section, close to the straight barrel, of the L-shaped pipe, a spring which is arranged in the length direction of the straight barrel is mounted in the straight barrel, and a piston which slides in a channel formed by the straight barrel and the L-shaped pipe is arranged on one side, far away from the closed end of the straight barrel, of the spring; the utility model has the following beneficial effect that the sewage circulation is uninterrupted under the condition that the air filter is not cleaned in time.

Description

Technical Field

[0001] This utility model is a blower device for wastewater circulation, belonging to the field of wastewater treatment. Background Technology

[0002] In wastewater treatment and recycling systems, aeration equipment (such as blowers) plays a crucial role, primarily providing oxygen to support the aerobic microbial activities during biological treatment processes. Roots blowers are among the most commonly used aeration equipment. The core component of a Roots blower is a pair of specially shaped rotors, typically figure-eight or trilobal. When these rotors are driven by synchronous gears to rotate in opposite directions, they draw in gas at the inlet side, compress it, and discharge it from the outlet side. The rotors are installed in a rotor chamber, which contains an air filter. After a period of use, the air filter becomes contaminated with dust and other debris, reducing the airflow per unit time. Consequently, the amount of air flowing into the aeration network at the bottom of the wastewater tank through the outlet pipe in the rotor chamber decreases. Due to the pressure of the wastewater in the tank, the airflow generated in the rotor chamber may not flow smoothly into the wastewater, causing intermittent interruptions in wastewater circulation. This results in discontinuous wastewater circulation. Therefore, a blower device is needed to ensure uninterrupted wastewater circulation even without timely cleaning of the air filter. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a blower device for wastewater circulation to solve the problems mentioned in the background art. This utility model enables uninterrupted wastewater circulation even when the air filter is not cleaned in time.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a wastewater circulation blower includes a base frame, a top frame directly above the base frame, four connecting columns installed between the top frame and the base frame, a rotor chamber installed on one side of the upper surface of the top frame, and a motor installed on the other side of the upper surface of the top frame. A first pulley installed on the output shaft of the motor is connected to a second pulley installed at one end of the rotor chamber via a transmission belt. An air filter is installed on the upper surface of the rotor chamber, and an air outlet pipe is installed on the lower surface of the rotor chamber, with the end of the air outlet pipe away from the rotor chamber extending to the top frame. On the outer side of the structure formed with the bottom frame, a detachable L-shaped tube is installed at the end of the air outlet pipe away from the rotor chamber. The section of the L-shaped tube away from the air outlet pipe is arranged horizontally. A detachable straight cylinder is installed at the end of the L-shaped tube away from the air outlet pipe. The end of the straight cylinder away from the L-shaped tube is closed. Multiple pipe joints are installed at equal intervals on the section of the L-shaped tube near the straight cylinder, which are connected to multiple independent aeration pipes in the sewage tank through one-way valves. A spring is installed inside the straight cylinder and arranged along the length of the straight cylinder. A piston is provided on the side of the spring away from the closed end of the straight cylinder, which slides in the channel formed by the straight cylinder and the L-shaped tube.

[0005] Furthermore, a first flange is installed at the end of the L-shaped pipe away from the air outlet pipe, and a second flange is installed at the end of the straight cylinder close to the L-shaped pipe. The first flange is connected to the second flange by fasteners formed by multiple sets of screws and nuts. A sealing gasket is installed between the first flange and the second flange, and the screw passes through the sealing gasket.

[0006] Furthermore, the second flange has a support ring on the side opposite to the first flange for limiting the position of the nut. The support ring is sleeved on the straight cylinder and fixedly connected to the straight cylinder. There is a gap between the support ring and the second flange. One side of the support ring has a plurality of small holes equidistantly arranged in a ring shape. One end of the screw passes through the small holes and is threaded to the nut.

[0007] Furthermore, four support legs are installed on the lower surface of the base frame, and the four support legs are respectively located at the four corners of the base frame.

[0008] Furthermore, a first carrier plate and a second carrier plate are installed on the upper surface of the top frame, the rotor chamber is installed on the upper surface of the first carrier plate, the motor is installed on the upper surface of the second carrier plate, and a support rib is installed at the end of the air filter away from the rotor chamber, with the lower end of the support rib connected to the second carrier plate.

[0009] Furthermore, a mesh frame is provided on the outer side of the transmission belt, the side of the mesh frame facing the top frame is open, the mesh frame is connected to the top frame, and both the first pulley and the second pulley are disposed inside the mesh frame.

[0010] The beneficial effects of this utility model are:

[0011] 1. When the air filter becomes clogged and the amount of air entering the rotor chamber per unit time decreases, the amount of air entering the L-shaped tube per unit time also decreases. At this time, the pressure in the L-shaped tube drops due to the reduced air volume. Under the action of the spring's rebound force, the piston moves from the straight cylinder to the L-shaped tube. The piston gradually seals the pipe joint near the straight cylinder, allowing the air entering the L-shaped tube to flow into the corresponding independent aeration pipe at the bottom of the sewage tank through the pipe joint away from the straight cylinder. This maintains that the air pressure in the aeration pipe is greater than the water pressure in the sewage tank, facilitating the smooth flow of air into the sewage and ensuring uninterrupted sewage circulation even if the air filter is not cleaned in time.

[0012] 2. When installing screws and nuts, screw the screws through the small holes on the first flange, the second flange, and the support ring before tightening the nuts. This allows the support ring to increase the force-bearing area of ​​the straight cylinder, preventing the reaction force generated by the spring from acting on a small area at the opening end of the straight cylinder. This helps improve the stability of the structure and reduces the strength requirements for the straight cylinder. Also, if the screws and nuts cannot be properly separated due to corrosion, the screws can be cut off using the gap between the support ring and the second flange, facilitating the replacement of springs, pistons, etc. in the future. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a wastewater recycling blower according to the present invention;

[0015] Figure 2 This is another perspective view of the blower device for wastewater recycling according to this utility model;

[0016] Figure 3 This is a schematic diagram of the assembly of the motor, rotor chamber and base frame in a wastewater circulation blower of this utility model;

[0017] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 5 This is a top view of a wastewater recycling blower according to the present invention;

[0019] Figure 6 for Figure 5 BB section view;

[0020] In the diagram: 1-bottom frame, 2-connecting column, 3-top frame, 4-first carrier plate, 5-rotor chamber, 6-air filter, 7-mesh frame, 8-motor, 9-support rib, 10-air outlet pipe, 11-straight cylinder, 12-pipe connector, 13-L-shaped pipe, 14-support leg, 15-second carrier plate, 16-first flange, 17-screw, 18-sealing gasket, 19-second flange, 20-support ring, 21-nut, 22-first pulley, 23-drive belt, 24-second pulley, 25-piston, 26-spring. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1-3 This utility model provides a technical solution: a blower device for wastewater circulation, including a bottom frame 1, a top frame 3 directly above the bottom frame 1, four connecting columns 2 installed between the top frame 3 and the bottom frame 1, a rotor chamber 5 installed on one side of the upper surface of the top frame 3, and a motor 8 installed on the other side of the upper surface of the top frame 3. A first carrier plate 4 and a second carrier plate 15 are installed on the upper surface of the top frame 3, so that the rotor chamber 5 is installed on the upper surface of the first carrier plate 4 and the motor 8 is installed on the upper surface of the second carrier plate 15, which facilitates the stable installation of the motor 8 and the rotor chamber 5. Four support legs 14 are installed on the lower surface of the bottom frame 1, and the four support legs 14 are respectively located at the four corners of the bottom frame 1.

[0023] See Figures 1-3 The first pulley 22 mounted on the output shaft of motor 8 is connected to the second pulley 24 mounted at one end of rotor chamber 5 via a transmission belt 23. An air filter 6 is mounted on the upper surface of rotor chamber 5. A support rib 9 is mounted on the end of air filter 6 away from rotor chamber 5. The lower end of support rib 9 is connected to the second carrier plate 15. The design of support rib 9 improves the stability of air filter 6 installation. An air outlet pipe 10 is mounted on the lower surface of rotor chamber 5. The end of air outlet pipe 10 away from rotor chamber 5 extends to the outside of the structure formed by top frame 3 and bottom frame 1. When motor 8 is working, it drives the two sets of rotors in rotor chamber 5 to rotate in opposite directions through transmission belt 23, so that air flows in through air filter 6 and then flows out through air outlet pipe 10. A mesh frame 7 is provided on the outside of transmission belt 23. The side of mesh frame 7 facing top frame 3 is open. Mesh frame 7 is connected to top frame 3. The first pulley 22 and the second pulley 24 are both set in mesh frame 7. The design of mesh frame 7 improves safety.

[0024] See Figures 1-4A detachable L-shaped pipe 13 is installed at the end of the air outlet duct 10 away from the rotor chamber 5. The section of the L-shaped pipe 13 away from the air outlet duct 10 is horizontally arranged. A detachable straight cylinder 11 is installed at the end of the L-shaped pipe 13 away from the air outlet duct 10. The end of the straight cylinder 11 away from the L-shaped pipe 13 is closed. A first flange 16 is installed at the end of the L-shaped pipe 13 away from the air outlet duct 10. A second flange 19 is installed at the end of the straight cylinder 11 near the L-shaped pipe 13. The first flange 16 is connected to the second flange 19 by fasteners formed by multiple sets of screws 17 and nuts 21. A sealing washer 18 is installed between the first flange 16 and the second flange 19, with the screws 17 passing through the sealing washer 18. A support ring 20 for limiting the position of the nut 21 is provided on the side of the second flange 19 away from the first flange 16. The support ring 20 is sleeved on the straight cylinder 11 and... The support ring 20 is fixed to the straight cylinder 11. There is a gap between the support ring 20 and the second flange 19. One side of the support ring 20 has multiple small holes at equal intervals in a ring shape. One end of the screw 17 passes through the small hole and is threaded to the nut 21. When installing the screw 17 and the nut 21, the screw 17 passes through the small holes on the first flange 16, the second flange 19 and the support ring 20 and then the nut 21 is screwed on. In this way, the support ring 20 increases the force-bearing area of ​​the straight cylinder 11, and avoids the reaction force generated by the spring 26 from acting on a small area at the opening end of the straight cylinder 11. This is beneficial to improving the stability of the structure and reducing the strength requirements of the straight cylinder 11. At the same time, when the screw 17 and the nut 21 cannot be properly separated due to corrosion, the screw 17 can be cut off by using the gap between the support ring 20 and the second flange 19, which facilitates the replacement of the spring 26, piston 25, etc. in the future.

[0025] See Figures 1-6 A number of pipe joints 12, each connected to an independent aeration pipe in the sewage tank via one-way valves, are equidistantly installed on a section of the L-shaped pipe 13 near the straight cylinder 11. A spring 26, arranged along the length of the straight cylinder 11, is installed inside the straight cylinder 11. A piston 25, sliding within the channel formed by the straight cylinder 11 and the L-shaped pipe 13, is located on the side of the spring 26 away from the closed end of the straight cylinder 11. When the amount of air entering the rotor chamber 5 per unit time decreases due to blockage of the air filter 6, the amount of air entering the L-shaped pipe 13 per unit time also decreases. At this time, the air inside the L-shaped pipe 13... As the air volume decreases and the pressure drops, the piston 25 moves from the straight cylinder 11 to the L-shaped tube 13 under the action of the spring 26's rebound force. As a result, the piston 25 gradually blocks the pipe joint 12 near the straight cylinder 11, allowing the air entering the L-shaped tube 13 to flow into the corresponding independent aeration pipe at the bottom of the sewage tank through the pipe joint 12 away from the straight cylinder 11. This keeps the air pressure in the aeration pipe greater than the water pressure in the sewage tank, facilitating the smooth flow of air into the sewage and ensuring uninterrupted sewage circulation even if the air filter 6 is not cleaned in time.

[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A blast device for wastewater circulation comprising a base frame (1), characterized in that: The bottom frame (1) is provided with a top frame (3) directly above it, four connecting columns (2) are installed between the top frame (3) and the bottom frame (1), a rotor chamber (5) is installed on one side of the upper surface of the top frame (3), a motor (8) is installed on the other side of the upper surface of the top frame (3), a first pulley (22) installed on the output shaft of the motor (8) is connected with a second pulley (24) installed on one end of the rotor chamber (5) through a transmission belt (23), an air filter (6) is installed on the upper surface of the rotor chamber (5), an air outlet pipe (10) is installed on the lower surface of the rotor chamber (5), the end of the air outlet pipe (10) away from the rotor chamber (5) extends to the outside of the structure formed by the top frame (3) and the bottom frame (1), a detachable L-shaped pipe (13) is installed on the end of the air outlet pipe (10) away from the rotor chamber (5), the section of the L-shaped pipe (13) away from the air outlet pipe (10) is arranged in a horizontal manner, a detachable straight cylinder (11) is installed on the end of the L-shaped pipe (13) away from the air outlet pipe (10), the end of the straight cylinder (11) away from the L-shaped pipe (13) is closed, a plurality of pipe joints (12) connected with a plurality of independent aeration pipes in the sewage tank through one-way valves are installed at equal intervals on the section of the L-shaped pipe (13) close to the straight cylinder (11), a spring (26) arranged along the length direction of the straight cylinder (11) is installed in the straight cylinder (11), a piston (25) sliding in the channel formed by the straight cylinder (11) and the L-shaped pipe (13) is provided on the side of the spring (26) away from the closed end of the straight cylinder (11).

2. A blast device for wastewater recirculation according to claim 1, characterized in that: A first flange (16) is installed on the end of the L-shaped pipe (13) away from the air outlet pipe (10), a second flange (19) is installed on the end of the straight cylinder (11) close to the L-shaped pipe (13), the first flange (16) is connected with the second flange (19) through fasteners formed by a plurality of screws (17) and nuts (21), a sealing washer (18) is installed between the first flange (16) and the second flange (19), the screws (17) penetrate the sealing washer (18).

3. A blast device for wastewater circulation according to claim 2, characterised in that: A support ring (20) for limiting the position of the nut (21) is provided on the side of the second flange (19) away from the first flange (16), the support ring (20) is sleeved on the straight cylinder (11) and connected and fixed with the straight cylinder (11), there is a gap between the support ring (20) and the second flange (19), a plurality of small holes are arranged at equal intervals on one side of the support ring (20) in a ring shape, one end of the screw (17) penetrates the small hole and is threadedly connected with the nut (21).

4. A blast device for wastewater recirculation according to claim 1, characterized in that: Four supporting legs (14) are installed on the lower surface of the bottom frame (1), the four supporting legs (14) are respectively arranged at the four corners of the bottom frame (1).

5. A blast device for wastewater recirculation according to claim 1, characterized in that: A first carrier plate (4) and a second carrier plate (15) are installed on the upper surface of the top frame (3), the rotor chamber (5) is installed on the upper surface of the first carrier plate (4), the motor (8) is installed on the upper surface of the second carrier plate (15), a support rib (9) is installed on the end of the air filter (6) away from the rotor chamber (5), the lower end of the support rib (9) is connected with the second carrier plate (15).

6. A blast device for wastewater recirculation according to claim 1, characterized in that: The transmission belt (23) is provided with a mesh frame (7) outside, one side of the mesh frame (7) facing the top frame (3) is open, the mesh frame (7) is connected with the top frame (3), and the first belt pulley (22) and the second belt pulley (24) are arranged in the mesh frame (7).

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