Accurate dosing device

Abstract

The utility model discloses precise dosing equipment relates to sewage treatment technical field, including generator main part and liquid preparation subassembly, the generator main part upper end is provided with the hydrogen discharge port, and the generator main part outside right side is provided with raw material box, and the generator main part outside left side is installed with first water pump, and the generator main part outside left side is provided with liquid preparation tank, the liquid preparation tank outside is provided with liquid preparation subassembly, and the liquid preparation subassembly includes servo motor, branch, mixing rod, mixing board, flowmeter, second water pump, water filter, feed cylinder, step motor, ration screw rod and control valve, the servo motor front end is connected with the branch, and the branch outside upper end is installed with mixing rod. This precise dosing equipment can be accurate, equal amount of salt is conveyed to the liquid preparation tank through ration screw rod, and the flowmeter carries out real -time monitoring and adjustment to the conveying amount of clean water, makes the salt and water strictly keep the set proportion.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to precision dosing equipment. Background Technology

[0002] Wastewater treatment is a technical system that purifies water bodies through physical, chemical, and biological methods to meet discharge or reuse standards. In the process of tap water production or wastewater treatment, the addition of specific chemical agents to the water according to the water quality and treatment objectives is a crucial step in the water treatment process. This aims to achieve water purification, disinfection, and system protection through chemical reactions. Sodium hypochlorite is a strong oxidant and disinfectant, produced by electrolysis from widely available and inexpensive industrial salt or dilute seawater solutions. It is widely used for disinfection and sterilization in water treatment. Before entering the sodium hypochlorite generator, the ratio of salt to water needs to be precisely adjusted. To improve wastewater treatment efficiency, a dosing device is required; however, existing dosing devices still have the following shortcomings. When using existing dosing equipment, most dosing devices cannot accurately measure the amount of salt and water added, causing the concentration of brine entering the electrolytic cell to fluctuate continuously. If the concentration is too low, there will be insufficient chloride ions in the brine, resulting in incomplete electrolysis. This not only leads to a sharp reduction in effective chlorine production but also forms highly destructive atomic oxygen on the anode surface, rapidly corroding and oxidizing the precious metal coating on the anode, causing permanent damage. If the concentration is too high, the high conductivity of the brine will reduce the cell voltage and current efficiency, which is also uneconomical. This results in a decrease in the practicality and efficiency of the dosing equipment. Utility Model Content

[0003] The purpose of this invention is to provide a precision dosing device to solve the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a precision dosing device, comprising a generator body and a liquid dispensing assembly. The generator body has a hydrogen discharge port at its upper end, a raw material tank on its right side, and a first water pump installed on its left side. A liquid dispensing tank is also located on the left side of the generator body, and a liquid dispensing assembly is installed outside the tank. This liquid dispensing assembly includes a servo motor, a support rod, a mixing rod, a mixing plate, a flow meter, a second water pump, a water filter, a conveying cylinder, and a stepper motor. The system includes a metering screw and a control valve. A support rod is connected to the front end of the servo motor, and a mixing rod is installed on the upper part of the support rod. A mixing plate is installed on the lower part of the support rod. A flow meter is installed on the upper end of the mixing tank, and a second water pump is connected to the flow meter. A water filter is connected to the second water pump. A conveying cylinder is installed on the left side of the upper end of the mixing tank, and a stepper motor is installed on the left end of the conveying cylinder. A metering screw is connected to the front end of the stepper motor. A control valve is installed at the bottom of the mixing tank, and a filter assembly is installed at the lower end of the mixing tank.

[0005] Furthermore, there are two mixing plates, and the two mixing plates are symmetrically arranged on the lower outer side of the support rod with respect to the central axis of the front of the support rod.

[0006] Furthermore, the flow meter is vertically distributed with the liquid preparation tank, and the flow meter is fixedly connected to the liquid preparation tank by bolts.

[0007] Furthermore, the metering screw is embedded in the feed cylinder, and the metering screw is rotatably connected to the feed cylinder via a stepper motor.

[0008] Furthermore, the filter assembly includes a filter cylinder, an installation tube, and a threaded sleeve. The installation tube is installed on the outside of the filter cylinder, and the threaded sleeve is connected to the outside of the installation tube.

[0009] Furthermore, the filter assembly also includes an installation docking groove, a rubber sealing ring, and an installation connecting pipe. The installation pipe has an installation docking groove at its front end, and a rubber sealing ring is connected inside the installation docking groove. The installation pipe is also connected inside the installation pipe.

[0010] Furthermore, the external dimensions of the mounting tube are adapted to the external dimensions of the threaded sleeve, and the threaded sleeve is rotatably connected to the mounting tube.

[0011] Furthermore, the internal dimensions of the mounting groove are adapted to the external dimensions of the rubber sealing ring, and the rubber sealing ring is connected to the mounting pipe through the mounting groove.

[0012] This utility model provides a precision dosing device, which has the following beneficial effects: 1. This utility model, through the setting of the liquid preparation component, enables precise and equal delivery of salt to the liquid preparation tank via a quantitative screw during the use of precision dosing equipment. At the same time, the flow meter monitors and adjusts the delivery of clean water in real time, ensuring that the salt and water are strictly maintained in the set ratio. After the control valve is activated, it works in conjunction with the first water pump to deliver the uniformly mixed salt water to the electrolytic cell inside the generator body for electrolysis reaction.

[0013] 2. By setting up a filter component, this utility model can finely filter the prepared brine through the filter cylinder when the precision dosing equipment is used, effectively intercepting undissolved solid impurities that may remain during the mixing process, ensuring the purity of the brine entering the electrolysis cell, significantly improving the efficiency and stability of the electrolysis reaction, thereby enhancing the overall practicality and operational efficiency of the dosing equipment, and ensuring the continuous and reliable addition of disinfectant to the water treatment system. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a three-dimensional sectional view of the liquid preparation tank of this utility model; Figure 3 This is a three-dimensional cross-sectional view of the material conveying cylinder of this utility model; Figure 4 This is a three-dimensional unfolded structural diagram of the filter assembly of this utility model; Figure 5 This is a flowchart illustrating the precise drug dosing process of this utility model.

[0015] In the diagram: 1. Generator body; 2. Hydrogen outlet; 3. Raw material tank; 4. First water pump; 5. Liquid mixing tank; 6. Liquid mixing assembly; 601. Servo motor; 602. Support rod; 603. Mixing rod; 604. Mixing plate; 605. Flow meter; 606. Second water pump; 607. Water filter; 608. Feed cylinder; 609. Stepper motor; 610. Metering screw; 611. Control valve; 7. Filter assembly; 701. Filter cartridge; 702. Mounting pipe; 703. Threaded sleeve; 704. Mounting docking groove; 705. Rubber sealing ring; 706. Mounting docking pipe. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0017] like Figures 1 to 5As shown, the precision dosing equipment includes a generator body 1 and a liquid mixing assembly 6. The generator body 1 has a hydrogen discharge port 2 at its upper end, a raw material tank 3 on its right side, and a first water pump 4 on its left side. A liquid mixing tank 5 is also located on the left side of the generator body 1, and the liquid mixing assembly 6 is located outside the tank 5. The liquid mixing assembly 6 includes a servo motor 601, a support rod 602, a mixing rod 603, a mixing plate 604, a flow meter 605, a second water pump 606, a water filter 607, a conveying cylinder 608, a stepper motor 609, a metering screw 610, and a control valve 611. A support rod 602 is connected to the front end of the 601, and a mixing rod 603 is installed on the upper part of the support rod 602. A mixing plate 604 is installed on the lower part of the support rod 602. A flow meter 605 is installed on the upper end of the liquid preparation tank 5, and a second water pump 606 is connected to the flow meter 605. A water filter 607 is connected to the second water pump 606. A conveying cylinder 608 is installed on the upper left side of the liquid preparation tank 5, and a stepper motor 609 is installed on the left end of the conveying cylinder 608. A metering screw 610 is connected to the front end of the stepper motor 609. A control valve 611 is installed at the bottom of the liquid preparation tank 5. There are two mixing plates 604. 604 is symmetrically positioned at the lower end of the outer side of support rod 602 along the central axis of the front of support rod 602. Flow meter 605 is perpendicularly distributed to liquid preparation tank 5 and is fixedly connected to liquid preparation tank 5 by bolts. Metering screw 610 is embedded in conveying cylinder 608 and is rotatably connected to conveying cylinder 608 via stepper motor 609. The stepper motor 609 at the left end of conveying cylinder 608 drives the metering screw 610 to rotate inside conveying cylinder 608, thereby using the metering screw 610 to uniformly and equally deliver salt into liquid preparation tank 5. The second water pump 606 at the upper end of liquid preparation tank 5 draws in clean water, and... The water is filtered by a water filter 607, and the flow rate of the clean water is regulated by a flow meter 605 to achieve the required mixing ratio with salt. The servo motor 601 drives the support rod 602 to rotate, causing the mixing rod 603 and mixing plate 604 installed on the outside of the support rod 602 to rotate accordingly, so as to evenly mix salt and water. The mixture is then transported to the generator body 1 by the opening of the control valve 611 in conjunction with the first water pump 4. The electrolytic cell inside the generator body 1 reacts with the brine, and the generated hydrogen gas is discharged from the hydrogen outlet 2. At the same time, sodium hypochlorite solution enters the raw material tank 3, and sodium hypochlorite solution is continuously added to the water in the raw material tank 3.

[0018] like Figures 1 to 5As shown, a filter assembly 7 is provided at the lower end of the liquid preparation tank 5. The filter assembly 7 includes a filter cylinder 701, an installation pipe 702, and a threaded sleeve 703. The installation pipe 702 is installed on the outside of the filter cylinder 701, and the threaded sleeve 703 is connected to the outside of the installation pipe 702. The filter assembly 7 also includes an installation docking groove 704, a rubber sealing ring 705, and an installation connecting pipe 706. The installation pipe 702 has an installation docking groove 704 at its front end, and the rubber sealing ring 705 is connected inside the installation docking groove 704. The installation pipe 702 is connected inside the installation connecting pipe 706. The external dimensions of the installation pipe 702 are adapted to the external dimensions of the threaded sleeve 703, and the threaded sleeve 703 is rotatably connected to the installation pipe 702. The internal dimensions of the installation docking groove 704 are adapted to the external dimensions of the rubber sealing ring 705. 5. The external dimensions are compatible, and the rubber sealing ring 705 is connected to the installation pipe 702 through the installation docking groove 704. The installation docking pipe 706 at the bottom of the liquid preparation tank 5 is matched with the installation pipe 702 on the outside of the filter cylinder 701 to make the liquid preparation tank 5 and the filter cylinder 701 face each other. The rubber sealing ring 705 is installed in the installation docking groove 704 opened at the front end of the installation pipe 702 to increase the connection sealing. At the same time, the threaded sleeve 703 on the outside of the installation pipe 702 is rotated to the outside of the installation docking pipe 706, so that the filter cylinder 701 and the liquid preparation tank 5 are fixed. The filter cylinder 701 is used to filter the undissolved part that may remain after the salt and water are mixed, thereby improving the electrolysis efficiency of the salt water and increasing the overall practicality and efficiency of the dosing equipment.

[0019] In summary, this precision dosing equipment operates as follows: First, the stepper motor 609 at the left end of the conveying cylinder 608 drives the internal metering screw 610 to rotate, achieving precise and uniform metering of salt to the mixing tank 5. The second water pump 606 at the top of the mixing tank 5 draws in clean water, which is then filtered by the water filter 607. The flow meter 605 monitors and adjusts the water flow rate in real time to ensure it maintains the set mixing ratio with the salt dosage. Subsequently, the servo motor 601 starts, driving the support rod 602 and the mixing rod 603 and mixing plate 604 mounted on it to rotate, achieving thorough and uniform mixing of salt and water. After mixing, the control valve 611 opens, coordinating with the first water pump 4 to deliver the prepared brine to the electrolytic cell inside the generator body 1 for electrolysis. The hydrogen gas generated by the reaction is safely discharged through the hydrogen vent 2, while the sodium hypochlorite solution generated at the same time enters the raw material tank 3, realizing the continuous and stable addition of disinfectant to the water body. Finally, an installation connecting pipe 706 is set at the bottom of the solution tank 5, which connects to the installation pipe 702 on the outside of the filter cartridge 701. The installation docking groove 704 at the front end of the installation pipe 702 is equipped with a rubber sealing ring 705 to ensure a reliable seal at the connection. By tightening the threaded sleeve 703 on the outside of the installation pipe 702 and the installation connecting pipe 706, the filter cartridge 701 can be firmly connected to the system. The filter can effectively intercept any undissolved solid impurities that may remain in the brine mixture, preventing them from entering the electrolytic cell, thereby ensuring the stable and efficient operation of the electrolysis process and improving the practicality and operating efficiency of the dosing equipment as a whole.

[0020] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A precision dosing device, comprising a generator body (1) and a liquid preparation assembly (6), characterized in that, The generator body (1) is provided with a hydrogen discharge port (2) at the upper end, and a raw material tank (3) is provided on the right side of the generator body (1). A first water pump (4) is installed on the left side of the generator body (1), and a liquid mixing tank (5) is provided on the left side of the generator body (1). A liquid mixing assembly (6) is provided on the outside of the liquid mixing tank (5). The liquid mixing assembly (6) includes a servo motor (601), a support rod (602), a mixing rod (603), a mixing plate (604), a flow meter (605), a second water pump (606), a water filter (607), a conveying cylinder (608), a stepper motor (609), a metering screw (610), and a control valve (611). The front end of the servo motor (601) is connected to a support rod. A rod (602) is provided, and a mixing rod (603) is installed on the upper part of the rod (602), and a mixing plate (604) is installed on the lower part of the rod (602). A flow meter (605) is installed on the upper part of the liquid preparation tank (5), and a second water pump (606) is connected to the flow meter (605). A water filter (607) is connected to the second water pump (606). A conveying cylinder (608) is installed on the left side of the upper part of the liquid preparation tank (5), and a stepper motor (609) is installed on the left end of the conveying cylinder (608). A metering screw (610) is connected to the front end of the stepper motor (609). A control valve (611) is installed at the bottom of the liquid preparation tank (5). A filter assembly (7) is provided at the lower end of the liquid preparation tank (5).

2. The precision dosing equipment according to claim 1, characterized in that, The mixing plate (604) is provided in two parts, and the two mixing plates (604) are symmetrically arranged on the lower part of the outside of the support rod (602) with the central axis of the front of the support rod (602).

3. The precision dosing equipment according to claim 1, characterized in that, The flow meter (605) is vertically distributed with the liquid preparation tank (5), and the flow meter (605) is fixedly connected to the liquid preparation tank (5) by bolts.

4. The precision dosing equipment according to claim 1, characterized in that, The metering screw (610) is embedded in the feed cylinder (608), and the metering screw (610) is rotatably connected to the feed cylinder (608) via a stepper motor (609).

5. The precision dosing equipment according to claim 1, characterized in that, The filter assembly (7) includes a filter cylinder (701), an installation tube (702) and a threaded sleeve (703). The filter cylinder (701) is externally mounted with the installation tube (702), and the installation tube (702) is externally connected with the threaded sleeve (703).

6. The precision dosing equipment according to claim 5, characterized in that, The filter assembly (7) further includes an installation docking groove (704), a rubber sealing ring (705), and an installation connecting pipe (706). The installation pipe (702) has an installation docking groove (704) at its front end, and a rubber sealing ring (705) is connected inside the installation docking groove (704). The installation pipe (702) is connected inside the installation connecting pipe (706).

7. The precision dosing equipment according to claim 6, characterized in that, The external dimensions of the mounting tube (702) are adapted to the external dimensions of the threaded sleeve (703), and the threaded sleeve (703) is rotatably connected to the mounting tube (702).

8. The precision dosing equipment according to claim 6, characterized in that, The internal dimensions of the mounting groove (704) are adapted to the external dimensions of the rubber sealing ring (705), and the rubber sealing ring (705) is connected to the mounting pipe (702) through the mounting groove (704).

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