CN220867180U - Sodium hypochlorite adding control system - Google Patents
Sodium hypochlorite adding control system Download PDFInfo
- Publication number
- CN220867180U CN220867180U CN202322668026.0U CN202322668026U CN220867180U CN 220867180 U CN220867180 U CN 220867180U CN 202322668026 U CN202322668026 U CN 202322668026U CN 220867180 U CN220867180 U CN 220867180U
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- CN
- China
- Prior art keywords
- dosing
- valve
- centrifugal pump
- sodium hypochlorite
- back pressure
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- 239000005708 Sodium hypochlorite Substances 0.000 title claims abstract description 35
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000003814 drug Substances 0.000 claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 230000007797 corrosion Effects 0.000 claims abstract description 16
- 238000005260 corrosion Methods 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 229940079593 drug Drugs 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000004659 sterilization and disinfection Methods 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 10
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 5
- 239000000460 chlorine Substances 0.000 claims description 5
- 229910052801 chlorine Inorganic materials 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 239000010865 sewage Substances 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000645 desinfectant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229940124645 emergency medicine Drugs 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000700605 Viruses Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model relates to the technical field of sewage treatment, in particular to a sodium hypochlorite dosing control system, which comprises a dosing unit and a controller for controlling the dosing unit, wherein the dosing unit comprises a liquid storage tank and two dosing pipes communicated with the liquid storage tank, a dosing valve, a filter, a corrosion-resistant centrifugal pump, a back pressure valve, a flowmeter, a dosing valve, a dosing pressure gauge and a flow regulating valve are sequentially arranged in the two dosing pipes along the dosing flow direction, a branch pipe communicated with the back pressure valve is arranged between the filter and the centrifugal pump, a high-pressure back pressure valve is arranged on the branch pipe, and a damper and a pressure gauge are communicated between the back pressure valve and the high-pressure back pressure valve; a communicating pipe is arranged between the two dosing pipes, and two ends of the communicating pipe are respectively connected between the drug outlet valve and the drug outlet pressure valve; the centrifugal pump and the flow regulating valve are electrically connected with the controller through wires, and the controller further comprises a controller and a detection device.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a sodium hypochlorite adding control system.
Background
Sodium hypochlorite is a commonly used disinfectant in the water treatment industry. The sodium hypochlorite solution is a strong oxidant which does not exist naturally, and compared with other disinfectants, the sodium hypochlorite solution has the advantages of good disinfection effect, convenient addition and the like, and can be added in any working state, and belongs to a strong sterilizing and virus killing medicament which is truly efficient, widely applied and safe, so that a method of adding the sodium hypochlorite solution is generally adopted for disinfection in a plurality of water plants.
The utility model provides an automatic dosing device that adopts more when sodium hypochlorite is thrown and is added, chinese patent publication No. CN212102140U provides a sodium hypochlorite system of throwing and adds like among the prior art, and it is through second back flow, solenoid valve on sodium hypochlorite drain line, can get back to in the former jar of sodium hypochlorite with the gaseous back flow pipeline that sodium hypochlorite produced, has solved because sodium hypochlorite produces gaseous and leads to measuring pump pressure too big, influences the problem of leaving the factory quality of water and shortens the life of diaphragm and pulse damper.
However, the prior art has the following problems:
1. when the feeding pipeline is blocked, the feeding device cannot work, and the whole sewage treatment process is affected.
2. Timely information of water quality in the disinfection pond can not be obtained, so that the adding amount of sodium hypochlorite can not be adjusted at the first time, and the problems of sodium hypochlorite waste or incomplete disinfection are easily caused.
3. Because sodium hypochlorite has high oxidability, components such as a connecting film and a connecting rod in the diaphragm type metering pump are easy to corrode and damage, and the addition control system cannot normally operate.
Disclosure of utility model
The utility model provides a sodium hypochlorite adding control system which is used for solving the technical problem that sodium hypochlorite in the existing sodium hypochlorite adding system cannot be accurately added and controlled.
The application provides the following technical scheme: the utility model provides a sodium hypochlorite dosing control system, includes dosing unit and the controller of control dosing unit, dosing unit includes the liquid storage pot and with two piece at least dosing pipes of liquid storage pot intercommunication, the both ends of dosing pipe communicate storage pot and disinfection pond respectively, its characterized in that: the chemical feeding pipe is internally and sequentially provided with a chemical feeding valve, a filter, a corrosion-resistant centrifugal pump, a back pressure valve, a flowmeter, a chemical discharging valve, a chemical discharging pressure gauge and a flow regulating valve along the chemical feeding flow direction, a branch pipe communicated with the back pressure valve is arranged between the filter and the corrosion-resistant centrifugal pump, a high-pressure back pressure valve is arranged on the branch pipe, and a damper and a pressure gauge are communicated between the back pressure valve and the high-pressure back pressure valve; a communicating pipe is arranged between the adjacent dosing pipes, and two ends of the communicating pipe are respectively connected between the drug outlet valve and the drug outlet pressure valve; the disinfection pond is internally provided with a detection device, the input end of the controller is electrically connected with the output end of the detection device, the output end of the controller is electrically connected with the input ends of the corrosion-resistant centrifugal pump and the flow regulating valve, and the detection device comprises a residual chlorine detection device, a pH detection device and a flow detection device.
Further, the filter is a Y-type filter, and the flowmeter is a rotameter.
Further, the corrosion-resistant centrifugal pump is a variable frequency centrifugal pump. The frequency conversion type corrosion-resistant centrifugal pump can be used in combination with a controller, so that the addition of the prepared medicines can be controlled more conveniently.
Furthermore, the two dosing pipes are provided with emergency dosing pipes after the dosing valves, and the emergency dosing pipes are provided with control valves. In this way, the emergency dosing tube can continue dosing when other devices of the dosing unit fail. The utility model has the beneficial effects that:
1. Residual chlorine detection device, pH detection device and flow detection device are arranged in the disinfection pond, residual chlorine, pH and flow at the water outlet of the disinfection pond can be detected in real time, and the three devices are uniformly connected to the controller, information is fed back to the controller, the frequency and flow of the centrifugal pump and the flow regulating valve can be controlled through the controller, and then sodium hypochlorite can be accurately added.
2. The dosing tube sets up two at least, and adjacent dosing tube passes through communicating pipe intercommunication, and the communicating pipe both ends are connected respectively between play medicine valve and play medicine pressure valve, set up like this and can guarantee to have multiple passageway in the dosing system, avoided dosing device because the pipeline jam leads to the condition that the system can't throw the medicine.
3. The branch pipe is arranged between the centrifugal pump and the back pressure valve, so that sodium hypochlorite can be effectively prevented from flowing back into the centrifugal pump to damage the centrifugal pump due to backflow of the pipeline.
4. The corrosion-resistant centrifugal pump replaces a diaphragm type metering pump, so that corrosion damage of components such as a connecting film and a connecting rod in the diaphragm type metering pump caused by high oxidization of sodium hypochlorite is effectively solved, and the service life and the adding precision of the whole system are improved.
Drawings
Fig. 1 is a schematic diagram of a sodium hypochlorite addition control system according to the present utility model;
fig. 2 is a logic block diagram of a controller according to the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
The labels in the drawings of this specification include: the device comprises a medicine storage tank 1, a first medicine adding pipe 2, a second medicine adding pipe 3, a branch pipe 4, a communicating pipe 5, an emergency medicine adding pipe 6, a medicine inlet valve 7, a Y-shaped filter 8, a variable frequency centrifugal pump 9, a back pressure valve 10, a high-pressure back pressure valve 11, a damper 12, a pressure gauge 13, a rotor flowmeter 14, a medicine outlet valve 15, a medicine outlet pressure gauge 16, a flow regulating valve 17, a communicating valve 18 and a disinfection tank 19.
Examples
Basically as illustrated in fig. 1 and 2, a sodium hypochlorite dosing control system includes a dosing unit and a controller for controlling the dosing unit. The dosing unit comprises a storage tank 1 for storing sodium hypochlorite, a first dosing pipe 2 and a second dosing pipe 3 which are communicated with the storage tank 1, and the tail ends of the two dosing pipes are arranged in a disinfection tank 19.
The first dosing pipe 2 and the second dosing pipe 3 are respectively provided with a dosing valve 7 at one end close to the dosing tank, and the two pipelines have the same connection structure; taking the first dosing tube 2 as an example for illustration, a Y-shaped filter 8 for filtering impurities in medicines is arranged behind the dosing valve 7, and the Y-shaped filter 8 can well protect a system from being blocked. An emergency dosing pipe 6 is arranged behind the dosing valve 7, and a control valve is arranged on the emergency dosing pipe 6. When the device arranged behind the medicine inlet valve 7 fails, the emergency medicine adding pipe 6 is started to ensure the normal addition of sodium hypochlorite.
The rear section of the Y-shaped filter 8 is connected with a centrifugal pump, which in the embodiment is a corrosion-resistant variable frequency centrifugal pump 9. The corrosion-resistant centrifugal pump can effectively resist the corrosion of sodium hypochlorite to the pump body, and the service life of the pump is prolonged. Meanwhile, the variable frequency centrifugal pump 9 can be connected with a signal output end of the controller through an electric wire.
The back pressure valve 10 is arranged behind the variable frequency centrifugal pump 9 in a connecting way, and the back pressure valve 10 can prevent the medicament backflow caused by the siphoning phenomenon of the medicament adding pipe. It is noted that a branch pipe 4 is provided after the Y-filter 8, which communicates directly with a back pressure valve 10. The branch pipe 4 is provided with a high-pressure back pressure valve 11, a damper 12 is connected between the high-pressure back pressure valve 11 and the back pressure valve 10, and the damper 12 is provided with a pressure gauge 13. When the dosing pipe is blocked, the liquid medicine in the dosing pipe can flow back to the medicine storage pipe through the branch pipe 4, so that the liquid medicine is prevented from flowing back into the centrifugal pump.
The back section of the back pressure valve 10 is provided with a rotameter 14 for monitoring the dosing flow, and a drug outlet valve 15 and a drug outlet pressure gauge 16 are connected behind the rotameter 14. A communicating pipe 5 is arranged between the medicine outlet valve 15 of the first medicine adding pipe 2 and the medicine outlet valve 15 of the second medicine adding pipe 3, and two ends of the communicating pipe 5 are respectively communicated with the first medicine adding pipe 2 and the second medicine adding pipe 3.
The rear section of the medicine outlet pressure gauge 16 is connected with a flow regulating valve 17. The flow regulating valve 17 in this embodiment is connected to the controller signal output via an electrical lead.
A detection device is arranged in the disinfection tank 19, the input end of the controller is electrically connected with the output end of the detection device, the output end of the controller is electrically connected with the input ends of the corrosion-resistant centrifugal pump and the flow regulating valve, and the controller adopts a PLC controller in the embodiment. The detection device specifically comprises a residual chlorine detection device, a pH detection device and a flow detection device for detecting the effluent of the disinfection tank. When the sodium hypochlorite adding device is used, the detection device feeds back detected data to the controller, and the controller controls the running frequency of the variable-frequency centrifugal pump 9 and the flow of the flow regulating valve 17, so that the sodium hypochlorite adding can be accurately regulated.
The above is merely an embodiment of the present utility model, and the present utility model is not limited to the field of the present embodiment, but the specific structure and characteristics of the present utility model are not described in detail. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (4)
1. The utility model provides a sodium hypochlorite dosing control system, includes dosing unit and the controller of control dosing unit, dosing unit includes the liquid storage pot and with two piece at least dosing pipes of liquid storage pot intercommunication, the both ends of dosing pipe communicate storage pot and disinfection pond respectively, its characterized in that: the chemical feeding pipe is internally and sequentially provided with a chemical feeding valve, a filter, a corrosion-resistant centrifugal pump, a back pressure valve, a flowmeter, a chemical discharging valve, a chemical discharging pressure gauge and a flow regulating valve along the chemical feeding flow direction, a branch pipe communicated with the back pressure valve is arranged between the filter and the corrosion-resistant centrifugal pump, a high-pressure back pressure valve is arranged on the branch pipe, and a damper and a pressure gauge are communicated between the back pressure valve and the high-pressure back pressure valve; a communicating pipe is arranged between the adjacent dosing pipes, and two ends of the communicating pipe are respectively connected between the drug outlet valve and the drug outlet pressure valve; the disinfection tank is internally provided with a detection device, the input end of the controller is electrically connected with the output end of the detection device, and the output end of the controller is electrically connected with the input ends of the corrosion-resistant centrifugal pump and the flow regulating valve; the detection device comprises a residual chlorine detection device, a pH detection device and a flow detection device.
2. The sodium hypochlorite dosing control system of claim 1, wherein: the emergency dosing pipes are arranged behind the dosing valves of the dosing pipes, and the control valves are arranged on the emergency dosing pipes.
3. The sodium hypochlorite dosing control system of claim 2, wherein: the corrosion-resistant centrifugal pump is a variable frequency centrifugal pump.
4. A sodium hypochlorite addition control system according to claim 3, wherein: the filter is a Y-shaped filter, and the flowmeter is a rotameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322668026.0U CN220867180U (en) | 2023-09-28 | 2023-09-28 | Sodium hypochlorite adding control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322668026.0U CN220867180U (en) | 2023-09-28 | 2023-09-28 | Sodium hypochlorite adding control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220867180U true CN220867180U (en) | 2024-04-30 |
Family
ID=90820674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322668026.0U Active CN220867180U (en) | 2023-09-28 | 2023-09-28 | Sodium hypochlorite adding control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220867180U (en) |
-
2023
- 2023-09-28 CN CN202322668026.0U patent/CN220867180U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |