Aeration device with adjustable aeration height

Abstract

The utility model provides an aeration device with adjustable aeration height, which comprises an air supply unit, an air supply main pipe, an air supply branch pipe and an aerator which are communicated in sequence, and is characterized by further comprising a control unit, a counter weight anti-winding unit, a lifting unit and an aeration lifting rope, the control unit is respectively in electric connection and communication connection with the air supply unit and the lifting unit, and the aeration lifting rope is connected with the counter weight anti-winding unit. The lifting unit is arranged outside the sewage treatment tank, the counter weight anti-winding unit comprises a counter weight lever, two ends of the counter weight lever are respectively in transmission connection with the lifting unit, the counter weight lever is provided with a through hole which corresponds to the position of the air supply branch pipe and has a diameter larger than that of the air supply branch pipe, and the air supply branch pipe penetrates through the corresponding through hole and then is communicated with the aerator; the upper end of the aeration lifting rope is fixed on the air supply main pipe, the lower end of the aeration lifting rope is fixed on the aerator after bypassing the balance weight lever, and a limiting ball is fixed on the aeration lifting rope, is clamped above the balance weight lever and is in contact with the balance weight lever.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment equipment and designs an aerator, in particular to an aeration device with adjustable aeration height. Background Art

[0002] Traditional sewage treatment aerators often touch the bottom due to changes in the water level in the sewage pool, which wears out the aerator structure or forms a black film on the bottom of the pool. Long-term wear can easily lead to damage to the aerator or breakage of the black film, affecting the progress of sewage treatment.

[0003] In addition, most of the existing sewage treatment aerators can only aerate at a fixed depth in the sewage treatment pool, and the aeration height cannot be adjusted. The depth of the aerator is often close to the bottom of the sewage treatment pool. The sludge concentration and water density of this section of sewage are high. The aerator needs to overcome a large water pressure in the water body for aeration, and the pressure of compressed air required to be provided externally is greater than when the aerator is in shallow water. When the dissolved oxygen content of the sewage at the bottom of the sewage treatment pool exceeds the standard, the aerator cannot be properly lifted, which leads to high power consumption of the entire device and high sewage treatment costs. Utility Model Content

[0004] The utility model aims to provide an aeration device with adjustable aeration height, so as to solve the technical problems in the prior art that the aerator in the aeration device cannot be adjusted at the height of the sewage treatment tank, resulting in high power consumption, easy contact with the bottom of the sewage treatment tank to cause mutual wear, and affecting the progress of sewage treatment.

[0005] To achieve the above purpose, the specific technical solution of the utility model is as follows:

[0006] An aeration device with adjustable aeration height, comprising an air supply unit, an air supply main pipe, an air supply branch pipe, and an aerator connected in sequence, wherein a plurality of air supply branches are evenly connected to the air supply main pipe, the number of aerators is multiple, and the air inlet end is connected to the air supply branch pipe, and the device further comprises a control unit, a counterweight anti-winding unit, a lifting unit, and an aeration lifting rope, wherein the control unit is electrically and communicatively connected to the air supply unit and the lifting unit, respectively, the lifting unit is arranged outside a sewage treatment tank, the counterweight anti-winding unit comprises a counterweight rod, both ends of the counterweight rod are respectively connected to the lifting unit in a transmission manner, the counterweight rod is provided with a through hole corresponding to the position of the air supply branch pipe and having a diameter greater than the diameter of the air supply branch pipe, and the air supply branch pipe is connected to the aerator after passing through the corresponding through hole;

[0007] The upper end of the aeration lifting rope is fixed on the air supply main pipe, and the lower end is fixed on the aerator after passing through the counterweight rod. A limiting ball is fixed on the aeration lifting rope, and the limiting ball is clamped above the counterweight rod and contacts the counterweight rod.

[0008] The aeration lifting rope between the main air supply pipe and the limiting ball is of a single-strand structure, and the aeration lifting rope between the limiting ball and the aerator is divided into two strands. The two strands of the aeration lifting rope are respectively fixed to the front and rear ends of the aerator after passing around the counterweight rod.

[0009] Aeration lifting ropes are fixed to both the left and right ends of the aerator.

[0010] The lifting unit includes a driving mechanism, a traction steel wire rope, a synchronous belt, and a counterweight lifting rope. The driving mechanism is arranged on the shore outside the sewage treatment tank. One end of the traction steel wire rope is fixed to the driving end of the driving mechanism, and the other end is fixed to the synchronous belt. The synchronous belt is laid along the main air supply pipe through the guiding part A. The upper end of the counterweight lifting rope is fixed to the synchronous belt through a transmission guiding bracket, and the lower end is fixed to the counterweight rod.

[0011] The guiding part A includes a floating pipe clamp A and a set of guiding rollers A. The floating pipe clamp A is clamped on the main air supply pipe. The set of guiding rollers A is arranged on the floating pipe clamp A, and the axial direction of the guiding rollers is perpendicular to the extending direction of the main air supply pipe. The synchronous belt passes through the set of guiding rollers A from one end of the main air supply pipe and then extends towards the other end of the main air supply pipe.

[0012] The lifting unit further includes a guiding part B. The guiding part B is arranged adjacent to the guiding part A and corresponds to the number and position of the counterweight lifting ropes one by one. It includes a floating pipe clamp B and a set of guiding rollers B. The floating pipe clamp B is clamped on the main air supply pipe. The set of guiding rollers B is arranged on the floating pipe clamp B, and the axial direction of the guiding rollers is perpendicular to the counterweight lifting rope. The counterweight lifting rope passes through the set of guiding rollers B and is fixedly connected to the counterweight rod.

[0013] The set of guiding rollers B further includes a vertical guiding rod. The vertical guiding rod is vertically fixed to the lower end of the floating pipe clamp A. A through hole with a clearance fit with the vertical guiding rod is arranged on the counterweight rod. The counterweight rod is sleeved on the vertical guiding rod and makes a vertical lifting and falling movement along the vertical guiding rod. The length of the counterweight lifting rope is less than the length of the vertical guiding rod.

[0014] The number of the lifting units is two, which are symmetrically arranged along the extending direction of the main air supply pipe. The length of the synchronous belt is less than half of the width of the sewage treatment tank body.

[0015] The driving mechanism is a cylinder lifting mechanism, an electric winch lifting mechanism, a submersible buoy, or a manual winch.

[0016] The length of the counterweight rod is greater than the total length of the aerators distributed on the same main air supply pipe.

[0017] The beneficial effects of the present utility model are as follows: The present utility model provides an aeration device with adjustable aeration height. By arranging the air supply branch pipe to pass through the counterweight rod of the counterweight anti-twist unit, and by setting a limit ball on the aeration lifting rope and cooperating with the counterweight anti-twist unit, the aerator can be automatically lifted while the lifting unit drives the counterweight anti-twist unit to lift. During use, when the water level in the sewage treatment tank drops or the aeration height of the aerator needs to be actively increased, the lifting unit can be controlled by the control unit to start and drive the aerator to lift, and the lifting height can be controlled by the control unit, with strong adaptability; and when the aerator needs to sink, only the lifting unit needs to be released, and the aerator can sink to the lowest aeration position by its own gravity, which is simple and convenient. The technical solution provided by the present utility model has a simple principle and a controllable lifting height, and is suitable for popularization and application in the field of sewage treatment aeration equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0019] Figure 2 is Figure 1 a partial structural diagram at the aerator in

[0020] Figure 3 is Figure 1 a partial enlarged view at A in

[0021] Figure 4 is Figure 1 a partial enlarged view at B in

[0022] Figure 5 is Figure 1 a partial enlarged view at C in

[0023] Figure 6 is Figure 5 a schematic diagram of the state when the aerator is lifted.

[0024] Explanation of the marks in the figure: 1. Air supply unit, 2. Air supply main pipe, 3. Air supply branch pipe, 4. Aerator, 5. Control unit, 6. Aeration lifting rope, 7. Limit ball, 8. Towing steel wire rope, 9. Synchronous belt, 10. Counterweight lifting rope, 11. Floating pipe clamp A, 12. Guide roller A group, 13. Floating pipe clamp B, 14. Guide roller B group, 15. Vertical guide rod, 16. Cylinder lifting mechanism, 17. Electric winch lifting mechanism, 18. Manual winch, 19. Counterweight rod, 20. Guide bracket, 21. Sewage treatment tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to better understand the purpose, structure and function of the present utility model, the following further detailed description of the present utility model is made with reference to the accompanying drawings.

[0026] like Figures 1 to 6 As shown, the utility model provides an aeration device with adjustable aeration height, comprising an air supply unit 1, an air supply main pipe 2, an air supply branch pipe 3, and an aerator 4 which are connected in sequence, wherein a plurality of air supply branch pipes 3 are evenly connected to the air supply main pipe 2, and the number of aerators 4 is multiple, and the air inlet end is connected to the air supply branch pipe 3. In this embodiment, the aerator 4 is preferably a hanging chain aerator 4; in addition, it also includes a control unit 5, a counterweight anti-winding unit, a lifting unit, and an aeration lifting rope 6, wherein the control unit 5 is electrically connected and communicationally connected to the air supply unit 1 and the lifting unit, respectively, and is used to control the air supply amount of the air supply unit 1 and the action of the lifting unit;

[0027] The lifting unit is arranged outside the sewage treatment tank 21, and the counterweight anti-winding unit includes a counterweight rod 19, both ends of which are respectively connected to the lifting unit by transmission, and the counterweight rod 19 is provided with a through hole corresponding to the position of the air supply branch pipe 3 and having a diameter larger than the diameter of the air supply branch pipe 3. The air supply branch pipe 3 is connected to the aerator 4 after passing through the corresponding through hole. Driven by the lifting unit, the counterweight rod 19 has the freedom to slide up and down relative to the air supply branch pipe 3;

[0028] The upper end of the aeration lifting rope 6 is fixed on the air supply main pipe 2, and the lower end is fixed on the aerator 4 after passing through the counterweight rod 19. A limiting ball 7 is fixed on the aeration lifting rope 6. The limiting ball 7 is clamped above the counterweight rod 19 and contacts the counterweight rod 19. When the counterweight rod 19 slides upward relative to the air supply branch pipe 3, it supports the limiting ball 7, driving the limiting ball 7 and the counterweight rod 19 to move upward together, thereby driving the aerator 4 at the lower end of the aeration lifting rope 6 where the limiting ball 7 is fixed to move upward.

[0029] Specifically, Figure 2 As shown, the number of aeration lifting ropes 6 and aerators 4 can be 1:1, or other ratios. In this embodiment, in order to ensure the reliability of the aeration lifting rope 6 driving the aerator 4 to lift, the aeration lifting rope 6 is fixed at both ends of the aerator 4. At the same time, there are many ways to clamp the limit ball 7 under the counterweight rod 19. It can be to open a hole with a diameter smaller than the limit ball 7 on the counterweight rod 19, and then pass the aeration lifting rope 6 through the counterweight rod 19, or it can be other ways. In this embodiment, in order to ensure the strength of the counterweight rod 19, the method of not punching holes is selected: the aeration lifting rope 6 between the air supply main 2 and the limit ball 7 is a single-strand structure, and the aeration lifting rope 6 between the limit ball 7 and the aerator 4 is divided into two strands. The two strands of the aeration lifting rope 6 are respectively arranged on the front and rear sides of the counterweight rod 19, bypass the counterweight rod 19, and then are respectively fixed at the front and rear ends of the aerator 4.

[0030] Further Figures 3 to 6As shown, the lifting unit includes a driving mechanism, a traction steel wire rope 8, a synchronous belt 9, and a counterweight lifting rope 10. The driving mechanism is arranged on the shore outside the sewage treatment tank 21. Among them, the form of the driving mechanism can be a cylinder lifting mechanism 16, an electric winch lifting mechanism 17, a diving buoy, or a manual winch 18. When it is a cylinder lifting mechanism 16 or a manual winch 18, the setting method is as Figure 4 shown. In this embodiment, for the convenience of control, it is selected as the electric winch lifting mechanism 17 with a self-locking function as Figure 3 shown;

[0031] One end of the traction steel wire rope 8 is fixed to the driving end of the driving mechanism, and the other end is fixed to the synchronous belt 9. The synchronous belt 9 is laid along the air supply main pipe 2 through the guiding part A. The upper end of the counterweight lifting rope 10 is fixed to the synchronous belt 9 through a transmission guiding bracket 20, and the lower end is fixed to the counterweight rod 19. When the lifting unit performs a lifting action, it drives the synchronous belt 9 to approach it. The synchronous belt 9 drives the counterweight lifting rope 10 fixed on it to retract toward the lifting unit side, thereby driving the counterweight rod 19 at the lower end of the counterweight lifting rope 10 to lift upward relative to the air supply branch pipe 3, and finally driving the limit ball 7 and the aerator 4 to lift.

[0032] Specifically, in order to provide guidance for the synchronous belt 9 and ensure its movement along the extension direction of the air supply main pipe 2, the guiding part A includes a floating pipe clamp A11 and a guiding roller group A12. The floating pipe clamp A11 is clamped on the air supply main pipe 2, and the guiding roller group A12 is arranged on the floating pipe clamp A11 with its axis direction perpendicular to the extension direction of the air supply main pipe 2. The synchronous belt 9 passes through the guiding roller group A12 from one end of the air supply main pipe 2 and then extends toward the other end of the air supply main pipe 2.

[0033] Furthermore, in order to ensure that the counterweight rod 19 moves vertically and does not swing when it is lifted with the counterweight lifting rope 10, the lifting unit in this embodiment further includes a guiding part B. The guiding part B is arranged adjacent to the guiding part A and corresponds to the number and position of the counterweight lifting ropes 10 one by one. It includes a floating pipe clamp B13 and a guiding roller group B14. The floating pipe clamp B13 is clamped on the air supply main pipe 2, and the guiding roller group B14 is arranged on the floating pipe clamp B13 with its axis direction perpendicular to the counterweight lifting rope 10. The counterweight lifting rope 10 passes through the guiding roller group B14 and then is fixedly connected to the counterweight rod 19.

[0034] In addition, to further ensure that the counterweight rod 19 moves in a straight line in the vertical direction without yawing left and right, the guiding group B in this embodiment further includes a vertical guiding rod 15. The vertical guiding rod 15 is vertically fixed at the lower end of the floating pipe clamp A11. A through hole for clearance fit with the vertical guiding rod 15 is provided on the counterweight rod 19. The counterweight rod 19 is sleeved on the vertical guiding rod 15 and moves vertically up and down along the vertical guiding rod 15. To ensure that the vertical guiding rod 15 can effectively guide, in this embodiment, the length of the counterweight lifting rope 10 is set to be less than the length of the vertical guiding rod 15. When the aerator 4 is at the lowest position of the sewage treatment tank 21, the positional relationship between the counterweight rod 19 and the limit ball 7 relative to the air supply main pipe 2 is as Figure 5 shown. When the counterweight rod 19 is lifted in place, its positional relationship with the limit ball 7 relative to the air supply main pipe 2 is as Figure 6 shown.

[0035] Furthermore, since both the counterweight rod 19 and the aerator 4 have a certain weight, to reduce the lifting pressure of a single set of lifting units and extend the service life of the towing steel wire rope 8, the number of lifting units in this embodiment is two, symmetrically arranged along the extension direction of the air supply main pipe 2. The length of the synchronous belt 9 is less than half of the width of the sewage treatment tank 21.

[0036] To enable the counterweight rod 19 to effectively lift each aerator 4, in this embodiment, the length of the counterweight rod 19 is greater than the total length of the aerators 4 distributed on the same air supply main pipe 2.

[0037] It can be understood that the present utility model is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. An aeration device with adjustable aeration height, comprising an air supply unit (1), an air supply main pipe (2), an air supply branch pipe (3), and an aerator (4) which are connected in sequence, wherein a plurality of air supply branch pipes (3) are evenly connected to the air supply main pipe (2), the number of aerators (4) is multiple, and the air inlet end is connected to the air supply branch pipe (3), characterized in that: It also includes a control unit (5), a counterweight anti-winding unit, a lifting unit and an aeration lifting rope (6), wherein the control unit (5) is electrically and communicatively connected to the air supply unit (1) and the lifting unit, respectively; the lifting unit is arranged outside the sewage treatment tank (21); the counterweight anti-winding unit includes a counterweight rod (19), both ends of the counterweight rod (19) are respectively connected to the lifting unit in a transmission manner; the counterweight rod (19) is provided with a through hole corresponding to the position of the air supply branch pipe (3) and having a diameter greater than the diameter of the air supply branch pipe (3); the air supply branch pipe (3) is connected to the aerator (4) after passing through the corresponding through hole; The upper end of the aeration lifting rope (6) is fixed on the air supply main pipe (2), and the lower end is fixed on the aerator (4) after passing through the counterweight rod (19). A limiting ball (7) is fixed on the aeration lifting rope (6), and the limiting ball (7) is clamped above the counterweight rod (19) and contacts the counterweight rod (19).

2. The aeration device with adjustable aeration height according to claim 1, characterized in that: The aeration lifting rope (6) between the air supply main pipe (2) and the limiting ball (7) is of a single-strand structure, and the aeration lifting rope (6) between the limiting ball (7) and the aerator (4) is of a double-strand structure. The two strands of the aeration lifting rope (6) are respectively fixed to the front and rear ends of the aerator (4) after passing through the counterweight rod (19).

3. The aeration device with adjustable aeration height according to claim 1, characterized in that: Aeration lifting ropes (6) are fixed to both left and right ends of the aerator (4).

4. The aeration device with adjustable aeration height according to claim 1, characterized in that: The lifting unit comprises a driving mechanism, a traction wire rope (8), a synchronous belt (9) and a counterweight lifting rope (10); the driving mechanism is arranged on the bank outside the sewage treatment pool (21); one end of the traction wire rope (8) is fixed to the driving end of the driving mechanism, and the other end is fixed to the synchronous belt (9); the synchronous belt (9) is laid along the air supply main pipe (2) through a guide A; the upper end of the counterweight lifting rope (10) is fixed to the synchronous belt (9) through a transmission guide bracket (20), and the lower end is fixed to the counterweight rod (19).

5. The aeration device with adjustable aeration height according to claim 4, characterized in that: The guide A part comprises a floating tube clamp A (11) and a guide roller group A (12); the floating tube clamp A (11) is clamped on the air supply main pipe (2); the guide roller group A (12) is arranged on the floating tube clamp A (11) with its axial direction perpendicular to the extension direction of the air supply main pipe (2); the synchronous belt (9) passes through the guide roller group A (12) from one end of the air supply main pipe (2) and extends to the other end of the air supply main pipe (2).

6. The aeration device with adjustable aeration height according to claim 4, characterized in that: The lifting unit further comprises a guide B part, which is arranged adjacent to the guide A part and corresponds to the number and position of the counterweight lifting rope (10) one by one, and comprises a floating tube clamp B (13) and a guide roller group B (14). The floating tube clamp B (13) is clamped on the air supply main pipe (2), and the guide roller group B (14) is arranged on the floating tube clamp B (13) with the axial direction perpendicular to the counterweight lifting rope (10). The counterweight lifting rope (10) passes through the guide roller group B (14) and is fixedly connected to the counterweight rod (19).

7. The aeration device with adjustable aeration height according to claim 5, characterized in that: The guide group B also includes a vertical guide rod (15), the vertical guide rod (15) is vertically fixed to the lower end of the floating tube clamp A (11), the counterweight rod (19) is provided with a through hole that is clearance-matched with the vertical guide rod (15), the counterweight rod (19) is sleeved on the vertical guide rod (15), and performs vertical lifting and falling movements along the vertical guide rod (15), and the length of the counterweight lifting rope (10) is less than the length of the vertical guide rod (15).

8. The aeration device with adjustable aeration height according to claim 4, characterized in that: The lifting units are in two groups, which are symmetrically arranged along the extension direction of the air supply main pipe (2), and the length of the synchronous belt (9) is less than half the width of the sewage treatment tank (21).

9. The aeration device with adjustable aeration height according to claim 4, characterized in that: The driving mechanism is a cylinder lifting mechanism (16), an electric winch lifting mechanism (17), a diving buoy or a manual winch (18).

10. The aeration device with adjustable aeration height according to claim 1, characterized in that: The length of the counterweight rod (19) is greater than the overall length of the distributed aerator (4) on the same air supply main pipe (2).

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