Biological attachment prevention and control system for source water conveying pipeline

Abstract

The utility model discloses a biological attachment prevention and control system for a source water conveying pipeline. The biological attachment prevention and control system comprises a reservoir, a biological attachment filtering unit, an ozone-ultrasonic oxidation unit and a power supply unit, wherein the biological attachment filtering unit, the ozone-ultrasonic oxidation unit and the power supply unit are arranged in the reservoir. Under the condition that operation of the domestic drinking water source water conveying pipeline is not affected, prevention and control of biological attachments of the source water conveying pipeline are achieved. An ultrasonic treatment technology is combined with ozone for use, so that the generation probability of hydroxyl radicals can be increased, the cavitation effect and mechanical disturbance are enhanced, the reaction time is shortened, and the cost is saved. Ultrasonic waves are used in the ozone oxidation process, the reaction speed can be increased, compared with the technology of independently using ultrasonic waves or ozone, the ozone-ultrasonic technology has the higher bacterium and microorganism killing effect, the survival rate of biological attachments in water and eggs of the biological attachments is reduced to the maximum extent, and the biological attachments are prevented from adhering and growing in a water conveying pipeline.

Description

Technical Field

[0001] The utility model relates to the cleaning of biological attachments on water conveyance pipelines, and particularly relates to a prevention and control system for biological attachments on raw water conveyance pipelines. Background Art

[0002] Water is the source of life and the material basis for human survival. The quality of drinking water directly affects human health. Nowadays, many biological attachments (such as Limnoperna fortunei) appear in water conveyance pipelines, having a great negative impact on water quality and water conveyance pipelines. Due to the strong adaptability and aggregability of such biological attachments, they can reproduce in large numbers in a suitable environment and attach to the surfaces of structures such as pipelines, culverts, tunnels, and pump stations in water conveyance projects, bringing extensive, severe, and continuous ecological pressure to the original ecosystem. At the same time, the large-scale reproduction and attachment of such biological attachments also reduce the cross-sectional area of water conveyance. In severe cases, they even block the water conveyance pipeline, posing a safety hazard to water conveyance and water supply; the metabolism of such biological attachments consumes oxygen in the water body, and the excreted chemical substances such as ammonia nitrogen cause water pollution.

[0003] At present, the methods for preventing such biological attachments are divided into chemical protection methods and physical protection methods according to their different principles. The chemical protection method mainly kills such biological attachments and their larvae in the water conveyance pipeline by continuously injecting oxidation reagents such as sodium hypochlorite, chlorine dioxide, potassium permanganate, and hydrogen peroxide for several consecutive days; although the chemical protection method has a quick effect, the residual chemical reagents can produce toxic by-products, affecting the safety of water quality. The physical protection method includes mechanical removal methods, etc.; the mechanical removal method is simple to operate and has a low cost, and this method is usually adopted when such biological attachments are severely attached to the surface of the water conveyance structure; however, the disadvantage of this method is that the inner wall structure surface of the water conveyance pipeline is easily damaged during the removal process, and the working intensity is high. After removal, Limnoperna fortunei will still continue to attach to the surface of the water conveyance structure. Summary of the Invention

[0004] In view of this, the purpose of the utility model is to provide a prevention and control system for biological attachments on raw water conveyance pipelines with low maintenance cost and suitable for domestic drinking water sources.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The prevention and control system for biological attachments on raw water conveyance pipelines of the utility model includes a reservoir, a biological attachment filtration unit, an ozone-ultrasonic oxidation unit, and a power supply unit arranged in the reservoir;

[0007] The biological attachment filtration unit is used to prevent organisms such as shellfish and fish from entering the water conveyance pipeline; it includes a first filter screen and a gate arranged at the water inlet of the reservoir, and a second filter screen arranged at the water outlet of the reservoir;

[0008] The ozone-ultrasonic oxidation unit utilizes the synergistic effect of ozone and ultrasound to more effectively kill biological attachments and their eggs in the water; it includes an ozone generator arranged on the upper surface of the top wall of the water reservoir, a waterproof ultrasonic generator arranged on the inner surface of the side wall of the water reservoir, and an ozone concentration detection sensor arranged in the water reservoir; the ozone generator has a plurality of ozone discharge pipes, the plurality of ozone discharge pipes are horizontally arranged on the inner surface of the top wall of the water reservoir, and the lower end of each ozone discharge pipe extends downward to the lower part of the water reservoir;

[0009] The power supply unit includes a solar cell panel arranged on the ceiling above the top wall of the water reservoir, and a battery arranged outside the water reservoir. The power output end of the solar cell panel is connected to the charging end of the battery, and the power output end of the battery is respectively connected to the power input end of the ozone generator, the waterproof ultrasonic generator, the ozone concentration detection sensor and the gate drive mechanism.

[0010] Optionally, a plurality of water baffles are vertically arranged at intervals along the water flow direction in the water reservoir, one side vertical edge of each water baffle is connected to the side wall of the water reservoir and the other side vertical edge is spaced apart from the corresponding side wall of the water reservoir; the same side vertical edges of adjacent water baffles are staggeredly connected to the side wall of the water reservoir, thereby forming an S-shaped flow channel in the water reservoir, increasing the oxidation reaction time of the source water with ozone and ultrasound, and more effectively reducing the number of biological attachments.

[0011] Optionally, the side walls and top wall of the water reservoir are steel plate concrete structures, that is, the side walls and top wall of the water reservoir are steel plate welded structures, and their inner surfaces are covered with concrete layers; the steel plates absorb ultrasonic waves and prevent them from radiating to the external environment, and the concrete layer prevents them from corroding.

[0012] Optionally, the waterproof ultrasonic generator emits ultrasonic waves at a frequency of 20 kHz to increase the dissolution rate of ozone (mechanical disturbance effect).

[0013] The beneficial effect of the utility model is that it realizes the prevention and control of biological attachments in the source water delivery pipeline without affecting the operation of the source water delivery pipeline for drinking water. The use of ultrasonic treatment technology in combination with ozone can increase the probability of the generation of hydroxyl radicals, enhance the cavitation effect and mechanical disturbance, shorten the reaction time, and save costs. The use of ultrasound in the ozone oxidation process can increase the reaction speed. Compared with the technology of using ultrasound or ozone alone, ozone-ultrasonic technology has a stronger effect of disinfecting bacteria and microorganisms, minimizes the survival rate of biological attachments and their eggs in the water, and prevents biological attachments from attaching and growing in water delivery pipelines. At the same time, the use of 20kHz ultrasound can save 50% of the ozone input. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 yes Figure 1 AA section diagram of .

[0016] Figure 3 yes Figure 1 Schematic diagram of the decomposition. DETAILED DESCRIPTION

[0017] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the scope of application of the present invention is not limited to the following embodiment.

[0018] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0019] like Figures 1-3 As shown, the biological attachment prevention and control system for source water delivery pipelines of the utility model comprises a water reservoir 1, a biological attachment filtering unit, an ozone-ultrasonic oxidation unit, and a power supply unit arranged in the water reservoir 1;

[0020] The biological attachment filtering unit comprises a first filter screen 3 and a gate 4 arranged at a water inlet 2 of a water reservoir 1, and a second filter screen 6 arranged at three water outlets 5 of the water reservoir 1; the first filter screen 3 is used to remove larger debris such as tree branches and plastic bottles from entering the water reservoir 1; the second filter screen 6 is used to remove larger shellfish, fish and other organisms from entering the water pipeline 7, so as to achieve double protection for the safe operation of the water pipeline 7; a control gate valve 4 is provided at the water inlet 2, which is used to close the water inlet 2 when the water reservoir 1 and the first and second filter screens 3 and 6 need to be repaired and cleaned; the mesh number of the first filter screen 3 is 4 meshes, and the mesh number of the second filter screen 6 is 5 meshes.

[0021] Ozone-ultrasonic oxidation unit, which utilizes the synergistic effect of ozone and ultrasonic waves to more effectively kill biological attachments and their eggs in water; it includes an ozone generator 9 arranged on the upper surface of the top wall 8 of the reservoir 1, a waterproof ultrasonic generator 10 arranged on the inner surface of the side wall of the reservoir 1, and an ozone concentration detection sensor 11 arranged in the reservoir 1; there are multiple ozone discharge pipes 12 of the ozone generator 9, and the multiple ozone discharge pipes 12 are horizontally arranged on the inner surface of the top wall 8 of the reservoir, and the lower ends of each ozone discharge pipe 12 extend downward to the lower part of the reservoir 1; the ozone concentration detection sensor 11 monitors the ozone concentration in the reservoir 1 in real time and gives an alarm when the working conditions for personnel cannot be met.

[0022] Power supply unit, including a solar panel 13 arranged on the ceiling 16 above the top wall 9 of the reservoir, and a storage battery 14 arranged outside the reservoir 1. The power output end of the solar panel 13 is connected to the charging end of the storage battery 14 through a wire 17, and the power output end of the storage battery 14 is respectively connected to the power input ends of the ozone generator 9, the waterproof ultrasonic generator 10, the ozone concentration detection sensor 11, and the driving mechanism of the gate 4.

[0023] The solar panel 13 converts solar energy into electrical energy and stores it in the storage battery 14; the solar panel 13 is composed of multiple pieces, generally at least more than 2 pieces, and the area of each piece is greater than 6m 2 ; the solar panel 13 is generally installed obliquely, and the installation angle forms an angle of 30° - 60° with the ground.

[0024] Beneficially or exemplarily, a plurality of water baffle plates 15 are vertically arranged at intervals along the water flow direction in the reservoir 1. One vertical side of each water baffle plate 15 is connected to the side wall of the reservoir 1, and the other vertical side is arranged at an interval from the corresponding side wall of the reservoir 1; the same vertical sides of adjacent water baffle plates 15 are connected to the side wall of the reservoir 1 in an alternating manner, so that an S-shaped flow channel is formed in the reservoir 1, increasing the oxidation reaction time of the raw water with ozone and ultrasonic waves, and more effectively reducing the number of biological attachments.

[0025] The parameters such as the number and roughness of the water baffle plates 15 are determined according to the actual situation, and it is sufficient to retain the biological attachments in the reservoir 1 to the greatest extent to achieve the disinfection purpose.

[0026] Beneficially or exemplarily, the side wall and the top wall of the reservoir 1 are of a steel plate concrete structure, that is: the side wall and the top wall of the reservoir 1 are of a steel plate welded structure, and its inner surface is coated with a concrete layer; the steel plate plays a role in absorbing ultrasonic waves and preventing ultrasonic waves from spreading to the external environment, and the concrete layer plays a role in anti-corrosion.

[0027] Beneficially or exemplarily, the ultrasonic wave frequency emitted by the waterproof ultrasonic generator 10 is 20 kHz to increase the dissolution rate of ozone (mechanical disturbance effect).

[0028] Finally, it should be emphasized that the above description is only the preferred embodiment of the present invention and is not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative efforts, or make equivalent replacements for some of the technical features. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A biological attachment prevention and control system for source water pipelines, characterized in that: It includes a water reservoir, a biological attachment filtering unit, an ozone-ultrasonic oxidation unit, and a power supply unit arranged in the water reservoir; The biological attachment filtering unit comprises a first filter screen and a gate arranged at the water inlet of the water reservoir, and a second filter screen arranged at the water outlet of the water reservoir; The ozone-ultrasonic oxidation unit comprises an ozone generator arranged on the upper surface of the top wall of the water reservoir, a waterproof ultrasonic generator arranged on the inner surface of the side wall of the water reservoir, and an ozone concentration detection sensor arranged in the water reservoir; the ozone generator has a plurality of ozone discharge pipes, the plurality of ozone discharge pipes are horizontally arranged on the inner surface of the top wall of the water reservoir, and the lower end of each ozone discharge pipe extends downward to the lower part of the water reservoir; The power supply unit includes a solar panel arranged on the ceiling above the top wall of the water reservoir, and a battery arranged outside the water reservoir. The power output end of the solar panel is connected to the charging end of the battery, and the power output end of the battery is respectively connected to the power input end of the ozone generator, the waterproof ultrasonic generator, the ozone concentration detection sensor and the gate driving mechanism.

2. The biological attachment prevention and control system for source water pipeline according to claim 1 is characterized in that: A plurality of water baffles are vertically arranged at intervals along the water flow direction in the water reservoir, one side vertical edge of each water baffle is connected to the side wall of the water reservoir and the other side vertical edge is spaced apart from the corresponding side wall of the water reservoir, and the same side vertical edges of adjacent water baffles are staggeredly connected to the side wall of the water reservoir.

3. The biological attachment prevention and control system for source water pipeline according to claim 1 or 2, characterized in that: The side walls and top wall of the water reservoir are steel plate concrete structures, that is, the side walls and top wall of the water reservoir are steel plate welded structures, and the inner surfaces thereof are covered with a concrete layer.

4. The biological attachment prevention and control system for source water pipeline according to claim 1 or 2, characterized in that: The ultrasonic frequency emitted by the waterproof ultrasonic generator is 20kHz.

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