Collision type cross-flow jet sodium hypochlorite adding and mixing device
By installing a collision-type cross-flow jet device on the water supply pipeline of the water purification plant, the mixing of sodium hypochlorite and water is achieved using the jet device, which solves the problems of low mixing efficiency and unstable effect under the traditional dosing method and achieves a rapid and uniform disinfection effect.
Patent Information
- Application Number
- CN202520320339.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Traditional sodium hypochlorite dosing methods in water treatment plants have low mixing efficiency and unstable mixing effects, resulting in poor disinfection or the generation of disinfection byproducts.
A counter-flow jetting device is used, in which two jets are installed opposite each other on the water pipe to achieve primary mixing and secondary mixing of sodium hypochlorite in the jets, thereby improving the mixing uniformity and efficiency.
It achieves rapid and uniform disinfection, the mixing efficiency is not affected by the flow rate, and the structure is simple, easy to install and maintain.
Smart Images
Figure CN223931120U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of water treatment equipment, specifically relating to a collision-type cross-flow jet sodium hypochlorite dosing and mixing device. Background Technology
[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.
[0003] In water treatment plants, disinfection is a crucial step in ensuring the safety of the water supply. Currently, the mainstream disinfection method in domestic water purification plants is chlorine disinfection, including chlorine gas disinfection, chlorine dioxide disinfection, and sodium hypochlorite disinfection. Early on, chlorine gas disinfection was mostly used, but in recent years, due to safety concerns, sodium hypochlorite has been gradually adopted instead. Traditionally, after changing disinfectants, water purification plants typically add sodium hypochlorite to the clear water tank or add it to the inlet pipe, mixing it through a pipe mixer before it enters the clear water tank. However, the water flow in the clear water tank is slow, resulting in poor mixing. Commonly used pipe mixers usually have a sodium hypochlorite dosing port on the pipe at the front end of the mixer. The added sodium hypochlorite enters the pipe through the dosing port before entering the pipe mixer to mix with the water. This method of adding sodium hypochlorite through a pipe mixer usually has low mixing efficiency and unstable mixing effects when the water volume changes. It also results in problems such as locally excessively high or low sodium hypochlorite concentrations, leading to unstable disinfection effects or the generation of disinfection byproducts. Utility Model Content
[0004] The purpose of this invention is to provide a collision-type cross-flow jet sodium hypochlorite dosing and mixing device. By installing two oppositely arranged jets on the water pipe, sodium hypochlorite is mixed once in the jets and then mixed again after being flushed, which improves the uniformity and efficiency of mixing, achieves the purpose of rapid mixing and uniform disinfection, and its mixing effect is determined by the size of the jet pump and is not affected by the water flow rate.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0006] In a first aspect, embodiments of this utility model provide a collision-type cross-flow jet sodium hypochlorite dosing and mixing device, including a water pipe, on which a jet water inlet and a chemical solution inlet are provided. The chemical solution inlet is provided at least two inlets, which are arranged opposite to each other, and each chemical solution inlet is equipped with a jet injector. The jet injector is connected to the jet water inlet via a pipeline, and the jet injector is provided with a chemical inlet, which is connected to the sodium hypochlorite pipeline.
[0007] As a further technical solution, the jet water inlet is located at the beginning of the water flow direction, and the drug-water mixture inlet is located at the end of the water flow direction.
[0008] As a further technical solution, a valve, a jet pump, and a flow meter are sequentially installed on the pipeline connecting the jet water inlet and the jet injector.
[0009] As a further technical solution, the valve is located near the jet water intake.
[0010] As a further technical solution, the axes of the two drug mixture inlets are on the same straight line.
[0011] As a further technical solution, the water passage pipe is a circular pipe.
[0012] As a further technical solution, the water pipe, jet injector, and jet pump are all made of stainless steel.
[0013] As a further technical solution, the number of jet water inlets is one or two, and the number of drug mixture inlets is two or four.
[0014] As a further technical solution, when the diameter of the water pipe is within 800mm, two jet jets are used; when the diameter of the water pipe is above 800mm, four jet jets are used.
[0015] As a further technical solution, the two jet injectors share a single jet inlet, or the two jet injectors are connected to two separate jet inlets.
[0016] The beneficial effects of the above-described embodiments of this utility model are as follows:
[0017] The opposing cross-flow jet sodium hypochlorite dosing and mixing device provided in this embodiment achieves primary mixing of the reagent and water within the jet nozzles and secondary mixing after flushing by setting two jet nozzles opposite each other on both sides of the water pipe. The mixing efficiency and mixing speed are improved by combining the two mixing processes with the flushing process.
[0018] The collision-type cross-flow jet sodium hypochlorite dosing and mixing device provided in this embodiment has a jet water inlet and a chemical solution inlet on the water pipe. Water is drawn from the jet water inlet by a jet pump and supplied to the jet injector for mixing with sodium hypochlorite. The mixing efficiency and speed are determined by the amount of water pumped and are not affected by the water flow rate, thereby improving the stability of the mixing and ensuring the disinfection effect.
[0019] The collision-type cross-flow jet sodium hypochlorite dosing and mixing device provided in this embodiment has a simple overall structure, is easy to construct, install, and maintain, and is conducive to the transformation and application of existing facilities and pipelines. Attached Figure Description
[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0021] Figure 1 This is a top view of the collision-type cross-flow jet sodium hypochlorite dosing and mixing device of this utility model;
[0022] Figure 2 This is a front view of the collision-type cross-flow jet sodium hypochlorite dosing and mixing device of this utility model;
[0023] Figure 3 This is a side view of the collision-type cross-flow jet sodium hypochlorite dosing and mixing device of this utility model.
[0024] The diagram is for illustrative purposes only.
[0025] Among them, 1. water pipe; 2. jet injector; 3. jet pump; 4. valve; 5. flow meter; 6. jet water intake; 7. chemical solution inlet; 8. chemical inlet. Detailed Implementation
[0026] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0027] Example 1
[0028] In a typical embodiment of this utility model, such as Figure 1-3 As shown, a collision-type cross-flow jet sodium hypochlorite dosing and mixing device is provided, including a water pipe 1. The water pipe 1 is provided with a jet water inlet 6 and a chemical solution inlet 7. At least two chemical solution inlets 7 are provided, which are arranged opposite to each other. Each chemical solution inlet 7 is equipped with a jet nozzle 2. The jet nozzle 2 is connected to the jet water inlet 6 through a pipeline. The jet nozzle 2 is provided with a chemical inlet 8, which is connected to the sodium hypochlorite pipeline.
[0029] Sodium hypochlorite enters the ejector 2 through the inlet 8. In the ejector 2, sodium hypochlorite is mixed with water once. The mixed solution is then sprayed into the water pipe 1 by the ejector 2, where it is mixed with the water in the water pipe 1 a second time. Since the two inlets 7 are set opposite each other, the mixed solutions sprayed by the two ejectors 2 collide in the water pipe, which can effectively improve the mixing efficiency of sodium hypochlorite and water.
[0030] In this embodiment, the jet water inlet 6 is located at the beginning of the water flow direction, and the chemical solution inlet 7 is located at the end of the water flow direction. By placing the jet water inlet 6 at the beginning of the water flow direction, it can be ensured that the water taken out from the jet water inlet is free of sodium hypochlorite, allowing the water entering the jet injector to mix better with sodium hypochlorite.
[0031] In this embodiment, a valve 4, a jet pump 3, and a flow meter 5 are sequentially installed on the pipeline connecting the jet water inlet 6 and the jet injector 2. The valve 4 is located near the jet water inlet and is used to control the start and stop of the water intake process and adjust the water flow rate. The jet pump 3 provides power for the water intake process, and the flow meter 5 displays the water flow rate.
[0032] In this embodiment, the axes of the two drug mixture inlets 7 are on the same straight line, thereby ensuring that the axes of the two ejectors are on the same straight line, so that the drug mixture sprayed from the two ejectors into the water pipe can collide, and the collision effect is used to further improve the mixing efficiency of sodium hypochlorite and water.
[0033] In this embodiment, the water pipe 1 is a circular pipe, mainly used to ensure the passage of the water to be treated.
[0034] In this embodiment, the water pipe 1, the jet injector 2, and the jet pump 3 are all made of stainless steel, such as 304, 316, or 316L. These materials can resist the corrosion of sodium hypochlorite and ensure the long-term stable operation of the pipe.
[0035] In this embodiment, the number of jet water inlets 6 is one or two, and the number of drug mixture inlets is two or four. Specifically, when the diameter of the water pipe is within 800mm, two jet injectors are used; when the diameter of the water pipe is greater than 800mm, four jet injectors are used. When the diameter of the water pipe is large, the number of jet injectors is increased to ensure a better mixing effect.
[0036] In this embodiment, the two jet injectors 2 share a single jet inlet 6, or the two jet injectors 2 are connected to two separate jet inlets 6.
[0037] The jet ejector used in this embodiment is an existing structure. It utilizes the high-speed fluid ejected by the jet ejector to generate strong thrust, thereby improving the mixing effect and efficiency of water and sodium hypochlorite.
[0038] The working principle of the collision-type cross-flow jet sodium hypochlorite dosing and mixing device provided in this embodiment is as follows:
[0039] Water that has not been mixed with sodium hypochlorite in the water pipe 1 enters the jet pump 3 through the pipe under the action of the jet pump 3. At the same time, sodium hypochlorite enters the jet injector 2 through the inlet 8. Sodium hypochlorite and water are mixed once in the jet injector 2. The mixed solution is sprayed into the water pipe 1 through the jet injector 2 for secondary mixing with the water in the water pipe 1. Since the two solution inlets 7 are set opposite each other, the solution sprayed by the two jet injectors 2 collide in the water pipe, which can effectively improve the mixing efficiency of sodium hypochlorite and water.
[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A collision-type cross-flow jet sodium hypochlorite dosing and mixing device, characterized in that, The device includes a water pipe, which is equipped with a jet water inlet and a chemical solution inlet. There are at least two chemical solution inlets, which are arranged opposite to each other. Each chemical solution inlet is equipped with a jet injector, which is connected to the jet water inlet via a pipeline. The jet injector is equipped with a chemical inlet, which is connected to a sodium hypochlorite pipeline.
2. The collision-type cross-flow jet sodium hypochlorite dosing and mixing device as described in claim 1, characterized in that, The jet water inlet is located at the beginning of the water flow direction, and the drug-water mixture inlet is located at the end of the water flow direction.
3. The collision-type cross-flow jet sodium hypochlorite dosing and mixing device as described in claim 1, characterized in that, A valve, a jet pump, and a flow meter are sequentially installed on the pipeline connecting the jet water intake to the jet injector.
4. The collision-type cross-flow jet sodium hypochlorite dosing and mixing device as described in claim 3, characterized in that, The valve is located near the jet water intake.
5. The collision-type cross-flow jet sodium hypochlorite dosing and mixing device as described in claim 1, characterized in that, The axes of the two drug solution inlets are on the same straight line.
6. The collision-type cross-flow jet sodium hypochlorite dosing and mixing device as described in claim 1, characterized in that, The water pipe is a circular pipe.
7. The collision-type cross-flow jet sodium hypochlorite dosing and mixing device as described in claim 1, characterized in that, The water pipes, jet injectors, and jet pumps are all made of stainless steel.
8. The collision-type cross-flow jet sodium hypochlorite dosing and mixing device as described in claim 1, characterized in that, The number of jet water inlets is one or two, and the number of drug solution inlets is two or four.
9. The collision-type cross-flow jet sodium hypochlorite dosing and mixing device as described in claim 8, characterized in that, When the diameter of the water pipe is within 800mm, two jet ejectors are used; when the diameter of the water pipe is above 800mm, four jet ejectors are used.
10. The collision-type cross-flow jet sodium hypochlorite dosing and mixing device as described in claim 1, characterized in that, Two jet injectors share a single jet intake, or two jet injectors are connected to two separate jet intakes.