Flow stability control device

Abstract

The utility model relates to the technical field of liquid treatment devices, in particular to a flow stability control device. A flow stable control device comprises a metering pump, a damper, a back pressure valve and a pipeline, the metering pump, the damper and the back pressure valve are all installed on the pipeline in series, the metering pump is placed in the fluid direction, the damper is located at the front end of the metering pump, the back pressure valve is located at the front end of the damper, and the metering pump, the damper and the back pressure valve are sequentially connected in series to form a continuous channel. The metering pump controls the medicament flow, the damper stabilizes the flow, reduces the influence of pressure change and pump wear, and the back pressure valve adjusts the pressure, so that stable flowing of the medicament is guaranteed, the purposes of flow control and pressure adjustment are achieved, the series design improves the dosing accuracy and stability, and efficient operation of the treatment process is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid processing devices, in particular to a flow stabilization control device. Background Art

[0002] In the fields of water treatment, sewage treatment, industrial production and laboratories, the dosing system is widely used to accurately add chemicals to the fluid. The dosage of these chemicals is crucial to the effect of the treatment process. However, there are some problems in the existing technology of the dosing system:

[0003] 1. Low flow control accuracy: In traditional drug dosing systems, fixed-speed pumps are often used to dosing drugs, but this method often cannot achieve accurate control of drug flow. Due to factors such as pressure changes in the fluid pipeline and pump wear, the dosing flow is difficult to stabilize.

[0004] 2. Pressure fluctuations affect system stability: In some dosing processes that require high stability, pressure fluctuations in the fluid pipeline will have a negative impact on system stability. Traditional dosing systems often lack effective pressure regulating devices, resulting in the inability to effectively control pressure fluctuations during dosing.

[0005] 3. Slow system response: The traditional reagent dosing system has a slow response speed and cannot adjust the dosage of the reagent in time to cope with sudden flow changes or pressure fluctuations, thus affecting the stability and effect of the treatment process.

[0006] In order to solve the above problems, we designed a flow stabilization control device. Utility Model Content

[0007] The technical problem to be solved by the utility model is to solve the deficiencies of the above-mentioned prior art and provide a fully automatic solution preparation device.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solution: a flow stabilization control device, comprising a metering pump, a damper, a back pressure valve and a pipeline, wherein the metering pump, the damper and the back pressure valve are all installed in series on the pipeline, the metering pump is placed along the fluid direction, the damper is located at the front end of the metering pump, and the back pressure valve is located at the front end of the damper.

[0009] Compared with the problems existing in the prior art of low flow control accuracy, pressure fluctuation affecting system stability and slow system response speed, the technical principle and technical effect of this solution are as follows: the metering pump, damper and back-pressure valve are connected in series in sequence to form a continuous channel for fluid flow; the metering pump accurately controls the flow of the agent to ensure that it is added to the system on demand, and the damper stabilizes the flow by slowing down the fluid velocity, reducing the flow fluctuation caused by pressure changes and pump wear, and the back-pressure valve plays a key role in regulating the back pressure in the system to maintain the pressure stability in the system; the metering pump, damper and back-pressure valve are installed on the pipeline to work together to ensure the stable flow of the agent in the system, effectively achieving the purpose of flow control and pressure regulation, and the design of installing the metering pump, damper and back-pressure valve in series on the pipeline can improve the accuracy and stability of the agent addition process and ensure the efficient operation of the treatment process.

[0010] Furthermore, a Y-type filter is provided on the pipeline, the Y-type filter is located at the rear end of the metering pump, and a filter screen is provided inside the Y-type filter.

[0011] The technical principle and technical effect of this solution are as follows: when the fluid passes through the Y-type filter, the impurities and particles therein will be retained inside the filter by the filter screen, while the fluid continues to pass through. At the same time, a certain degree of inertial separation will occur when the fluid flows through the Y-type filter. Larger solid particles and impurities will be deposited at the bottom of the Y-type filter due to inertia, while smaller particles will be retained by the filter screen. The Y-type filter prevents solid particles such as impurities, particles and debris in the fluid from directly entering metering pumps, dampers, back pressure valves and other equipment, reducing failures caused by wear of equipment by solid particles, thereby reducing maintenance costs.

[0012] Furthermore, a calibration column and a ball valve are provided on the pipeline. The calibration column is located in front of the Y-type filter. The calibration column is provided with a scale for measuring flow. The ball valve is located in front of the liquid inlet of the calibration column and is used to control the opening and closing of the calibration column pipeline.

[0013] The technical principle and technical effect of this solution are: when the operator needs to monitor the flow rate and obtain flow data, the ball valve in front of the calibration column can be opened to allow the flow to pass through the calibration column, and the time taken for the fluid to flow into the calibration column and the scale on the calibration column can be recorded to calculate the flow rate of the fluid. After obtaining the flow data, the operator can more accurately control and adjust the working parameters of the metering pump, thereby increasing the accuracy and stability of drug addition.

[0014] Furthermore, a diaphragm pressure gauge is provided on the pipeline, a diaphragm and a pressure gauge are provided inside the diaphragm pressure gauge, and the diaphragm pressure gauge is located between the damper and the back pressure valve.

[0015] The technical principle and technical effect of this solution are as follows: when the fluid passes through the pipeline, the pressure inside the pipeline will act on the diaphragm, causing the diaphragm to move. The pressure gauge on the diaphragm will record this displacement, thereby reflecting the pressure situation in the pipeline. By monitoring the pipeline pressure in real time, the operator can adjust the working parameters of the damper and back pressure valve in time to maintain the pressure in the pipeline stable, which helps to improve the stability and reliability of the system and ensure the normal operation of the drug dosing system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the principle diagram of the utility model.

[0017] Figure 2 This is a schematic diagram of the utility model installed in a specific drug adding system. DETAILED DESCRIPTION

[0018] The present invention is described in detail below with reference to the accompanying drawings and embodiments:

[0019] The figure marks in the drawings of the specification include: calibration column 1, calibration column ball valve 2, Y-type filter 3, metering pump 4, damper 5, diaphragm pressure gauge 6, back pressure valve 7, safety valve 8, online dilution system 9, medicine storage tank 10, medicine feed pipeline 11, first branch 12, medicine pump 13, medicine pipeline 14, water pipeline 15.

[0020] See also Figure 1 , Figure 2 As shown, the installation method of the flow stabilization control device in the embodiment includes a water pipe 12, a drug feed pipe 11, a drug pipe 14 and an online dilution system 9, the water pipe 15 is extended into a first branch 12 and a second branch, the first branch 12 extends into a plurality of first small branches connected to the drug pipe 14, the second branch extends into a plurality of second small branches, each second small branch corresponds to the online dilution system and is connected to the online dilution system.

[0021] The medicine in the tank truck is pumped into the medicine inlet pipe 11 through the medicine pump 13, and the medicine enters three medicine storage tanks 10 along the medicine pipe 14 respectively. The medicine in the three medicine storage tanks has two liquid outlet passages. The first liquid outlet passage directly flows into the collection pit through the pipe, and the second liquid outlet passage enters the corresponding online dilution system 9 through the medicine pipe 14 connected to the storage tank.

[0022] The flow stabilization control device is installed on the medicine pipeline 14 of the second liquid outlet passage of the three medicine tanks. Since the installation method of the flow stabilization control device on the three pipelines is the same, we choose one of the pipelines to explain the implementation method of the subsequent embodiments.

[0023] The medicine passes through the Y-type filter 3, the metering pump 4, the damper 5, the diaphragm pressure gauge 6 and the back pressure valve 7 in the medicine pipeline 14 in sequence.

[0024] When the fluid passes through the Y-type filter 3, the impurities and particles therein will be retained inside the filter by the filter screen, while the fluid continues to pass through. At the same time, a certain degree of inertial separation will occur when the fluid flows through the Y-type filter 3. Larger solid particles and impurities will be deposited at the bottom of the Y-type filter due to inertia, while smaller particles will be retained by the filter screen. The Y-type filter 3 prevents solid particles such as impurities, particles and debris in the fluid from directly entering the metering pump 4, damper 5, back pressure valve 7 and other equipment, reducing failures caused by wear of equipment by solid particles, thereby reducing maintenance costs.

[0025] The metering pump 4, the damper 5 and the back-pressure valve 7 are connected in series in sequence to form a continuous channel for fluid flow; the metering pump 4 accurately controls the flow rate of the agent to ensure that it is added to the system as needed, and the damper 5 stabilizes the flow rate by slowing down the fluid velocity, reducing the flow fluctuation caused by pressure changes and pump wear, and the back-pressure valve 7 plays a key role in regulating the back pressure in the system to maintain the pressure stability in the system; the metering pump 4, the damper 5 and the back-pressure valve 7 are installed on the pipeline to work together to ensure the stable flow of the agent in the system, and effectively achieve the purpose of flow control and pressure regulation. The design of installing the metering pump, the damper and the back-pressure valve in series on the pipeline can improve the accuracy and stability of the agent addition process and ensure the efficient operation of the treatment process.

[0026] The pressure diaphragm gauge is located between the damper 5 and the back pressure valve 7. When the fluid passes through the pipeline on which the pressure diaphragm gauge is installed, the pressure inside the pipeline will act on the diaphragm, causing the diaphragm to move. The pressure gauge on the diaphragm will record this displacement, thereby reflecting the pressure conditions in the pipeline. By monitoring the pipeline pressure in real time, the operator can adjust the working parameters of the damper and the back pressure valve in time to keep the pressure in the pipeline stable, which helps to improve the stability and reliability of the system and ensure the normal operation of the drug dosing system.

[0027] A calibration column and a ball valve for controlling the opening and closing of the calibration column are also installed on the reagent pipeline 14. When the operator needs to monitor the flow rate to obtain flow data, the ball valve in front of the calibration column can be opened to allow the flow rate to pass through the calibration column. The time taken for the fluid to flow into the calibration column and the scale on the calibration column can be recorded, and the flow rate of the fluid can be calculated. After obtaining the flow data, the operator can more accurately control and adjust the working parameters of the metering pump, thereby increasing the accuracy and stability of reagent addition.

[0028] In this embodiment, in order to prevent the pipeline from rupturing due to excessive pressure in the pipeline installed with the flow stabilization control device, we also designed a branch pipe, which is connected to the pharmaceutical pipeline 14. The branch pipe is located between the Y-type filter and the metering pump. A safety valve is installed on the branch pipe, which is used to open when the pressure in the pipeline is too high to quickly discharge the liquid in the pipeline, thereby preventing the pipeline from rupturing due to excessive pressure in the pipeline.

[0029] The above are only embodiments of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A flow stabilization control device, comprising a metering pump, a damper, a back pressure valve and a pipeline, characterized in that: The metering pump, damper and back pressure valve are all installed in series on the pipeline, the metering pump is placed along the fluid direction, the damper is located at the front end of the metering pump, and the back pressure valve is located at the front end of the damper.

2. The flow stabilization control device according to claim 1, characterized in that: A Y-type filter is arranged on the pipeline, the Y-type filter is located at the rear end of the metering pump, and a filter screen is arranged inside the Y-type filter.

3. The flow stabilization control device according to claim 1, characterized in that: The pipeline is provided with a calibration column and a ball valve. The calibration column is located in front of the Y-type filter. The calibration column is provided with a scale for measuring flow. The ball valve is located in front of the liquid inlet of the calibration column and is used to control the opening and closing of the calibration column pipeline.

4. The flow stabilization control device according to claim 1, characterized in that: A diaphragm pressure gauge is arranged on the pipeline, a diaphragm and a pressure gauge are arranged inside the diaphragm pressure gauge, and the diaphragm pressure gauge is located between the damper and the back pressure valve.

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