Sodium hypochlorite feeding device for sewage treatment

Abstract

The utility model relates to a sodium hypochlorite feeding device for sewage treatment. The sodium hypochlorite feeding device comprises a medicine storage box, a purification pipe, a liquid conveying pipe and a cleaning mechanism, the purification pipe is positioned below the pesticide storage box; the infusion tube is located between the pesticide storage box and the purification tube, one end of the infusion tube communicates with the pesticide storage box, and the other end extends into the purification tube; the cleaning mechanism is arranged on the purification pipe and comprises a machine box connected with the outer side wall of the purification pipe, a first motor movably arranged in the machine box, a rotating rod connected with the output end of the first motor and a driving unit used for driving the first motor to move in a reciprocating mode, the rotating rod extends into the purification pipe, and spiral blades are arranged on the periphery of the rotating rod. And the spiral blade can extend into the infusion tube and is in contact with the inner side wall of the infusion tube. According to the utility model, a sodium hypochlorite solution can be instantly mixed with sewage to be treated, so that the sodium hypochlorite solution can be quickly and uniformly distributed in the sewage, the disinfection efficiency is improved, and the cleaning mechanism ingeniously solves the problem of blockage of the infusion tube.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, and in particular to a sodium hypochlorite delivery device for sewage treatment. Background Art

[0002] The use of sodium hypochlorite in sewage treatment is a common disinfection method, primarily used to remove bacteria, viruses, and other microorganisms from water, ensuring that the treated water meets discharge standards or is reusable. Its primary mechanism of action is to release active chlorine that destroys microbial cell walls, thereby killing pathogens. Currently, sodium hypochlorite has been gradually promoted for use in sewage treatment plants, with most of its delivery methods being through pipes. However, in actual use, it has been found that factors such as the sodium concentration of the hypochlorite solution, temperature fluctuations, and water flow rate can easily lead to crystallization and fouling at the pipe openings and inner walls, affecting its delivery effectiveness. Therefore, regular cleaning of the pipes is necessary, which is not only time-consuming and labor-intensive, but also impacts the progress of sewage treatment. Utility Model Content

[0003] In view of this, the utility model provides a sodium hypochlorite dosing device which can prevent the sodium hypochlorite from generating dirt due to crystallization and affecting the sewage treatment quality.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A sodium hypochlorite dosing device for sewage treatment, comprising: a medicine storage box, a purification pipe, an infusion pipe and a cleaning mechanism; the medicine storage box is used to store sodium hypochlorite solution; the purification pipe is located below the medicine storage box and is used to transport sewage to be treated; the infusion pipe is located between the medicine storage box and the purification pipe, one end of the infusion pipe is connected to the medicine storage box and the other end extends into the interior of the purification pipe; the cleaning mechanism is arranged on the purification pipe, comprising a chassis connected to the outer side wall of the purification pipe, a first motor movably arranged in the chassis, a rotating rod connected to the output end of the first motor, and a driving unit for driving the first motor to reciprocate, the rotating rod extends into the purification pipe and has a spiral blade on its outer circumference, the spiral blade can extend into the infusion pipe and contact the inner side wall of the infusion pipe.

[0006] In the above technical solution, when sewage treatment is carried out, the medicine storage box directly transports the sodium hypochlorite solution into the purification pipe through the infusion tube, and immediately mixes it with the sewage to be treated, ensuring that the sodium hypochlorite solution can be quickly and evenly distributed in the sewage, thereby improving the disinfection efficiency and effectively killing bacteria, viruses and other harmful substances in the sewage.

[0007] Furthermore, the cleaning mechanism cleverly solves the problem of clogged infusion lines. Using a rotating rod driven by the first motor and its spiral blades, it automatically reaches into the infusion line to remove residue or crystals without human intervention, significantly reducing maintenance costs and frequency and extending the life of the entire system. The spiral blades also agitate the water flow, promoting rapid mixing of the sodium hypochlorite solution and sewage.

[0008] Optionally, in one possible implementation, the driving unit includes a rack slidably mounted in the chassis, a gear rotatably mounted in the chassis and meshingly connected to the rack, and a second motor for driving the gear to rotate, and the first motor is arranged on the rack.

[0009] In this technical solution, the meshing structure of the rack and pinion, combined with the precise control of the second motor, enables stable and smooth reciprocating motion of the first motor and its accessories, thereby driving the rotating rod and spiral blades to perform efficient cleaning operations within the purification tube. Furthermore, the coordination of the gear and rack also greatly enhances the stability and durability of the system.

[0010] Optionally, in a possible implementation, blocks are provided on opposite sides of the tooth surface of the rack, and a sliding groove matching the block is provided on the inner side wall of the chassis, and the block is slidably secured in the sliding groove.

[0011] In this technical solution, by providing blocks on either side of the rack and slidably engaging grooves in the inner sidewall of the chassis, the rack's horizontal movement is effectively limited, enhancing the structural stability of the entire drive unit. Furthermore, the combination of the blocks and the grooves provides precise guidance for the rack, making its trajectory within the chassis more predictable and controllable, ensuring that the spiral blades can be inserted into the infusion tube.

[0012] Optionally, in a possible implementation, the first motor is fixed to a surface of the rack opposite to the tooth surface via a mounting plate.

[0013] In the above technical solution, the first motor is fixed to the side of the rack opposite to the tooth surface through the mounting plate. This can effectively utilize the space on the back of the rack, avoid direct interference between the motor and the rack tooth surface, thereby optimizing the spatial layout of the entire drive unit and facilitating the installation of the first motor.

[0014] Optionally, in a possible implementation, a waterproof sleeve is provided at the intersection of the rotating rod and the purification tube, and the waterproof sleeve is sleeved on the outer circumference of the rotating rod.

[0015] In the above technical solution, the design of the waterproof bushing forms an effective sealing barrier at the intersection of the rotating rod and the purification tube, which can prevent sewage or other liquids in the treatment process from penetrating into the drive unit, thereby protecting key components such as the motor, gears and racks from corrosion and damage.

[0016] Optionally, in a possible implementation manner, the output shaft of the first motor is fixedly connected to the rotating rod through a coupling.

[0017] In the above technical solution, the coupling serves as a connecting piece between the motor output shaft and the rotating rod, which can effectively transmit the rotational power of the motor to the rotating rod while ensuring stability during the power transmission process.

[0018] Optionally, in a possible implementation, the infusion tube is connected to the medicine storage box through a quantity control unit, and the quantity control unit includes a metering pump connected to the infusion tube, and a liquid outlet tube for connecting the metering pump and the medicine storage box.

[0019] In the above technical solution, the metering pump, as the core component of the quantity control unit, can accurately control the flow of sodium hypochlorite solution from the medicine storage box to the infusion tube. By accurately controlling the dosage of the medicine by the metering pump, the utilization efficiency of sodium hypochlorite can be optimized and unnecessary waste can be reduced, which not only reduces the treatment cost, but also improves the treatment efficiency of the entire sewage treatment system.

[0020] Optionally, in a possible implementation, a flow meter is provided on the purification pipe, and based on the flow direction of the sewage, the flow meter is located in front of the infusion pipe.

[0021] In the above technical solution, the setting of the flow meter can monitor the flow of sewage in the purification pipe in real time, providing accurate data support for operators, helping to accurately grasp the flow changes during the sewage treatment process, ensuring that the dosage of sodium hypochlorite matches the sewage flow, thereby improving the treatment effect.

[0022] Optionally, in a possible implementation, a first control valve is installed on the liquid outlet pipe.

[0023] In the above technical solution, the installation of the first control valve enables the operator to accurately control the flow rate of sodium hypochlorite liquid flowing from the storage tank through the liquid outlet pipe to the metering pump, thereby avoiding the influence of excessive or insufficient dosage on the treatment effect.

[0024] Optionally, in a possible implementation, the medicine storage box is provided with a liquid inlet pipe, and a second control valve is installed on the liquid inlet pipe.

[0025] In the above technical solution, the installation of the second control valve enables the operator to flexibly control the opening and closing of the liquid inlet pipe as needed, thereby accurately controlling the replenishment time and replenishment amount of the sodium hypochlorite solution, helping to ensure that the solution in the storage tank is always maintained at an appropriate level, avoiding processing interruptions or waste of resources caused by insufficient or excessive solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment.

[0028] Figure 2 It is a front view of a rack according to an embodiment.

[0029] Figure numerals: 1-medicine storage box; 2-purification tube; 3-infusion tube; 4-cleaning mechanism; 41-chassis; 411-chute; 42-first motor; 421-coupling; 43-rotating rod; 44-drive unit; 441-rack; 4411-block; 442-gear; 45-spiral blade; 46-mounting plate; 5-waterproof sleeve; 6-quantity control unit; 61-metering pump; 62-liquid outlet pipe; 621-first control valve; 7-flow meter; 8-liquid inlet pipe; 81-second control valve. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0032] Please refer to Figure 1The present embodiment provides a sodium hypochlorite dosing device for sewage treatment, comprising: a medicine storage box 1, a purification pipe 2, an infusion pipe 3, and a cleaning mechanism 4; the medicine storage box 1 is used to store sodium hypochlorite solution; the purification pipe 2 is located below the medicine storage box 1 and is used to transport sewage to be treated; the infusion pipe 3 is located between the medicine storage box 1 and the purification pipe 2, one end of the infusion pipe 3 is connected to the medicine storage box 1, and the other end extends into the interior of the purification pipe 2; the cleaning mechanism 4 is arranged on the purification pipe 2, and includes a chassis 41 connected to the outer wall of the purification pipe 2, a first motor 42 movably arranged in the chassis 41, a rotating rod 43 connected to the output end of the first motor 42, and a driving unit 44 for driving the first motor 42 to reciprocate, the rotating rod 43 extending into the purification pipe 2 and having a spiral blade 45 on its outer circumference, the spiral blade 45 being able to extend into the infusion pipe 3 and contact the inner wall of the infusion pipe 3.

[0033] In this embodiment, when sewage is treated, the medicine storage tank 1 directly transports the sodium hypochlorite solution into the purification pipe 2 through the infusion tube 3, and immediately mixes it with the sewage to be treated, ensuring that the sodium hypochlorite solution can be quickly and evenly distributed in the sewage, thereby improving the disinfection efficiency and effectively killing bacteria, viruses and other harmful substances in the sewage.

[0034] Furthermore, the cleaning mechanism 4 cleverly solves the problem of clogging the infusion tube 3. By means of a rotating rod 43 driven by a first motor 42 and its spiral blades 45, the cleaning mechanism 4 automatically reaches into the infusion tube 3 to remove residue or crystals without human intervention, significantly reducing maintenance costs and frequency and extending the service life of the entire system. As the spiral blades 45 enter and exit the infusion tube 3, they not only clean dirt from within the tube 3 but also carry it out for flushing through the water flow, thus reducing the possibility of dirt accumulation. Furthermore, as the spiral blades 45 move and rotate, they also agitate the water flow, promoting rapid mixing of the sodium hypochlorite solution and sewage.

[0035] In this embodiment, the drive unit 44 includes a rack 441 that slides and is fixed within the chassis 41, a gear 442 that is rotatably mounted within the chassis 41 and meshes with the rack 441, and a second motor (not shown) for driving the gear 442 to rotate. The first motor 42 is mounted on the rack 441. The infusion tube 3 and the rotating rod 43 are both arranged in a vertical direction. The drive unit 44 can drive the first motor 42, the rotating rod 43 connected thereto, and the spiral blade 45 to rise and fall in the vertical direction. The gear 442 is rotatably mounted within the chassis 41 via a rotating shaft. The second motor drives the rotation of the rotating shaft to drive the rotation of the gear 442. The second motor is a stepping motor that can drive the gear 442 in forward and reverse directions.

[0036] This embodiment utilizes the meshing structure of the rack 441 and the gear 442, combined with precise control of the second motor, to achieve stable and smooth reciprocating motion of the first motor 42 and its associated components, thereby driving the rotating rod 43 and the spiral blade 45 to perform efficient cleaning operations within the purification tube 2. Furthermore, the coordination between the gear 442 and the rack 441 greatly enhances the stability and durability of the system.

[0037] In this embodiment, a clamping block 4411 is provided on opposite sides of the tooth surface of the rack 441, and a sliding groove 411 matching the clamping block 4411 is provided on the inner side wall of the chassis 41. The clamping block 4411 is slidably clamped in the sliding groove 411. The clamping groove extends along the moving direction of the first motor 42.

[0038] By providing blocks 4411 on either side of the rack 441 and slidably engaging the blocks within the slide grooves 411 on the inner sidewall of the chassis 41, horizontal movement of the rack 441 is effectively limited, thereby enhancing the structural stability of the entire drive unit 44. Furthermore, the combination of the blocks 4411 and the slide grooves 411 provides precise guidance for the rack 441, making the movement trajectory of the rack 441 within the chassis 41 more certain and controllable, thereby ensuring that the spiral blades 45 can extend into the infusion tube 3.

[0039] It should be noted that the first motor 42 is secured to the side of the rack 441 opposite the tooth surface via the mounting plate 46. The first motor 42 can be secured using bolts or other components. Securing the first motor 42 to the side of the rack 441 opposite the tooth surface via the mounting plate 46 effectively utilizes the space behind the rack 441, avoiding direct interference between the motor and the tooth surface of the rack 441. This optimizes the spatial layout of the entire drive unit 44 and facilitates installation of the first motor 42.

[0040] In this embodiment, a waterproof sleeve 5 is provided at the intersection of the rotating rod 43 and the purification tube 2. The waterproof sleeve 5 is sleeved around the outer circumference of the rotating rod 43. The design of the waterproof sleeve 5 forms an effective sealing barrier at the intersection of the rotating rod 43 and the purification tube 2, preventing sewage or other liquids during the treatment process from seeping into the interior of the drive unit 44, thereby protecting key components such as the motor, gear 442, and rack 441 from corrosion and damage.

[0041] As another embodiment, a guide plate can also be set on the rotating rod 43. The guide plate can be set on one end of the rotating rod 43 close to the motor. The guide plate can be set at an angle or a guide groove can be set. Its function is to drain the sewage leaking into the interior of the chassis 41 to avoid contamination of the second motor.

[0042] The output shaft of the first motor 42 of this embodiment is fixedly connected to the rotating rod 43 via a coupling 421. As a connecting member between the motor output shaft and the rotating rod 43, the coupling 421 can effectively transmit the rotational power of the motor to the rotating rod 43 while ensuring stability during the power transmission process.

[0043] In this embodiment, the infusion tube 3 is connected to the medicine storage tank 1 via a metering unit 6. The metering unit 6 includes a metering pump 61 connected to the infusion tube 3 and a liquid outlet pipe 62 for connecting the metering pump 61 and the medicine storage tank 1. The metering pump 61, as the core component of the metering unit 6, can accurately control the flow rate of the sodium hypochlorite solution from the medicine storage tank 1 to the infusion tube 3. By accurately controlling the dosage of the sodium hypochlorite solution through the metering pump 61, the efficiency of sodium hypochlorite use can be optimized, unnecessary waste can be reduced, and treatment costs can be reduced while improving the treatment efficiency of the entire sewage treatment system.

[0044] In addition, a flow meter 7 is provided on the purification pipe 2 of this embodiment. Based on the direction of sewage flow, the flow meter 7 is located in front of the infusion pipe 3. The flow meter 7 enables real-time monitoring of the sewage flow rate within the purification pipe 2, providing accurate data support for operators and helping to accurately grasp flow rate changes during sewage treatment. In conjunction with the metering pump 61, the amount of sodium hypochlorite to be added can be determined based on the water flow rate, ensuring that the amount of sodium hypochlorite added matches the sewage flow rate, thereby improving treatment effectiveness.

[0045] In this embodiment, a first control valve 621 is installed on the liquid outlet pipe 62. The installation of the first control valve 621 allows the operator to accurately control the flow rate of sodium hypochlorite liquid flowing from the storage tank 1 through the liquid outlet pipe 62 to the metering pump 61, thereby preventing the impact of over- or under-dosing on the treatment effect.

[0046] In this embodiment, the medicine storage tank 1 is provided with a liquid inlet pipe 8, on which a second control valve 81 is mounted. The installation of the second control valve 81 enables the operator to flexibly control the opening and closing of the liquid inlet pipe 8 as needed, thereby precisely controlling the replenishment time and amount of sodium hypochlorite solution. This helps ensure that the liquid in the medicine storage tank 1 is always maintained at an appropriate level, avoiding processing interruptions or waste of resources caused by insufficient or excessive liquid.

[0047] In the description of the present invention, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0049] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sodium hypochlorite dosing device for sewage treatment, characterized in that: include: Medicine storage box, used for storing sodium hypochlorite solution; A purification pipe, located below the medicine storage tank, for conveying sewage to be treated; an infusion tube located between the medicine storage box and the purification tube, one end of the infusion tube being connected to the medicine storage box and the other end extending into the interior of the purification tube; The cleaning mechanism is provided on the purification tube and includes a chassis connected to the outer wall of the purification tube, a first motor movably arranged in the chassis, a rotating rod connected to the output end of the first motor, and a driving unit for driving the first motor to reciprocate. The rotating rod extends into the purification tube and has a spiral blade on its outer periphery. The spiral blade can extend into the infusion tube and contact the inner wall of the infusion tube.

2. The sodium hypochlorite dosing device for sewage treatment according to claim 1, characterized in that: The driving unit includes a rack slidably mounted in the chassis, a gear rotatably mounted in the chassis and meshing with the rack, and a second motor for driving the gear to rotate, wherein the first motor is arranged on the rack.

3. The sodium hypochlorite dosing device for sewage treatment according to claim 2, characterized in that: The rack is provided with clamping blocks on two opposite sides of the tooth surface, and the inner side wall of the chassis is provided with a sliding groove matching the clamping blocks, and the clamping blocks are slidably clamped in the sliding groove.

4. The sodium hypochlorite dosing device for sewage treatment according to claim 2, characterized in that: The first motor is fixed to a surface of the rack opposite to the tooth surface through a mounting plate.

5. The sodium hypochlorite dosing device for sewage treatment according to claim 1, characterized in that: A waterproof shaft sleeve is provided at the intersection of the rotating rod and the purification pipe, and the waterproof shaft sleeve is sleeved on the outer periphery of the rotating rod.

6. The sodium hypochlorite dosing device for sewage treatment according to claim 1, characterized in that: The output shaft of the first motor is fixedly connected to the rotating rod through a coupling.

7. The sodium hypochlorite dosing device for sewage treatment according to claim 1, characterized in that: The infusion tube is communicated with the medicine storage box through a quantity control unit. The quantity control unit includes a metering pump connected to the infusion tube and a liquid outlet tube for connecting the metering pump and the medicine storage box.

8. The sodium hypochlorite dosing device for sewage treatment according to claim 7, characterized in that: A flow meter is provided on the purification pipe, and based on the flow direction of the sewage, the flow meter is located in front of the infusion pipe.

9. The sodium hypochlorite dosing device for sewage treatment according to claim 7, characterized in that: A first control valve is installed on the liquid outlet pipe.

10. The sodium hypochlorite dosing device for sewage treatment according to claim 1, characterized in that: The medicine storage box is provided with a liquid inlet pipe, and a second control valve is installed on the liquid inlet pipe.

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