CN220867179U - Barrier-free sodium hypochlorite adding system - Google Patents
Barrier-free sodium hypochlorite adding system Download PDFInfo
- Publication number
- CN220867179U CN220867179U CN202322569757.XU CN202322569757U CN220867179U CN 220867179 U CN220867179 U CN 220867179U CN 202322569757 U CN202322569757 U CN 202322569757U CN 220867179 U CN220867179 U CN 220867179U
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- CN
- China
- Prior art keywords
- control system
- sodium hypochlorite
- valve
- flow sensor
- barrier
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- 239000005708 Sodium hypochlorite Substances 0.000 title claims abstract description 19
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000003814 drug Substances 0.000 claims abstract description 33
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 26
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000460 chlorine Substances 0.000 claims abstract description 16
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 16
- 238000005260 corrosion Methods 0.000 claims abstract description 16
- 230000007797 corrosion Effects 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims description 9
- 239000010865 sewage Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 208000031513 cyst Diseases 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- UMFJAHHVKNCGLG-UHFFFAOYSA-N n-Nitrosodimethylamine Chemical compound CN(C)N=O UMFJAHHVKNCGLG-UHFFFAOYSA-N 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 210000003250 oocyst Anatomy 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model relates to the technical field of sewage treatment, in particular to a barrier-free sodium hypochlorite feeding system, which comprises a feeding pipeline and a control system, wherein a medicament box, a corrosion-resistant centrifugal pump, a pressure gauge, a back pressure valve and a flow regulating valve are sequentially arranged on the feeding pipeline; the outlet of the feeding pipeline is communicated with the disinfection tank, a residual chlorine instrument is further arranged in the disinfection tank, a flow sensor is further arranged in the water inlet pipe of the disinfection tank, and the flow sensor and the residual chlorine instrument are electrically connected with the control system. The utility model can solve the technical problems that the existing adding equipment has high failure rate and the accurate adding of the medicament is difficult to be effectively ensured.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a barrier-free sodium hypochlorite adding system.
Background
The effluent from sewage plants must be disinfected because urban domestic sewage contains a large number of microorganisms including bacteria, protozoan oocysts and cysts, worms and viruses harmful to humans. The common disinfectant in the disinfection pond of sewage plant has a lot of, and sodium hypochlorite is a comparatively common one, and wherein the dosage of sodium hypochlorite has important influence to sewage disinfection effect, and low dose sodium hypochlorite is thrown and is not fully inactivated and disinfected to microorganism, and excessive sodium hypochlorite is thrown and is added and can make residual chlorine enter into natural water, forms disinfection accessory substances such as trihalomethane, haloacetic acid, N-nitroso-methane (NDMA).
In order to realize accurate dosing of the medicament, the dosing equipment commonly used at present is a metering pump, and the dosing equipment has the following technical problems in the using process: the equipment failure rate is higher, and accurate dosing of the medicament can not be effectively guaranteed, and the main reason is that sodium hypochlorite has strong oxidizing property, so that the metering pump components such as a diaphragm, a connecting rod and the like are easily damaged seriously.
Disclosure of utility model
The utility model provides a barrier-free sodium hypochlorite adding system, which can solve the technical problems that the existing adding equipment has high failure rate and the accurate adding of a medicament is difficult to be effectively ensured.
The application provides the following technical scheme:
The barrier-free sodium hypochlorite adding system comprises an adding pipeline and a control system, wherein a medicament box, a corrosion-resistant centrifugal pump, a pressure gauge, a back pressure valve and a flow regulating valve are sequentially arranged on the adding pipeline, the corrosion-resistant centrifugal pump is connected with a frequency converter, and the frequency converter, the pressure gauge, the back pressure valve and the flow regulating valve are all electrically connected with the control system; the outlet of the feeding pipeline is communicated with the disinfection tank, a residual chlorine instrument is further arranged in the disinfection tank, a flow sensor is further arranged in the water inlet pipe of the disinfection tank, and the flow sensor and the residual chlorine instrument are electrically connected with the control system.
Technical principle and beneficial effect:
1. the corrosion-resistant centrifugal pump is used for replacing the metering pump, so that the service life of the pump can be prolonged, the stable operation of equipment is ensured, the problem of adding faults caused by damage to the diaphragm of the metering pump is solved, and the maintenance workload and the maintenance cost are reduced.
2. The accurate dosing of medicament is realized through setting up backpressure valve, flow control valve, and wherein backpressure valve is used for adjusting the pressure of throwing in the addition pipeline, and then guarantees centrifugal pump output flow stable, avoids causing the unstable problem of medicament flow because of pressure variation, on guaranteeing to throw the stable basis of adding pipeline flow, adjusts the sodium hypochlorite medicament of throwing in the disinfection pond through flow control valve, realizes accurate dosing.
3. The frequency of the centrifugal pump is controlled through the frequency converter, so that the frequency control of the centrifugal pump and the double-insurance control of the flow regulating valve are realized, and the dosing of sodium hypochlorite medicine can be further accurate.
4. The residual chlorine instrument is arranged in the disinfection tank for detecting the residual chlorine value in the disinfection tank in real time, and then the water inflow of the disinfection tank is combined, the control system is utilized for accurately controlling the medicament addition, the intelligent degree is high, the excessive addition of the medicament can be effectively avoided, the medicament cost is saved, and meanwhile, the generation of disinfection byproducts is reduced.
Further, a flow sensor is also arranged on the feeding pipeline, the flow sensor is positioned between the pressure gauge and the back pressure valve, and the flow sensor is electrically connected with the control system.
The beneficial effects are that: the flow sensor is used for detecting the medicine amount in the dosing pipeline in real time and transmitting signals to the control system, for example, when the medicine flow changes due to pressure change, the control system receives the signals and then controls the back pressure valve, and the back pressure valve is used for adjusting the pressure of the dosing pipeline, so that the flow in the dosing pipeline is controlled to be stable.
Further, the control system comprises a PLC controller, a display screen, an indicator light and an alarm.
The beneficial effects are that: the display screen is used for displaying parameters such as the flow rate and the pressure of the medicament in the dosing pipeline and the residual chlorine value in the disinfection tank in real time, and when the medicament dosing is abnormal, the indicator light quantity gives an alarm through the alarm, so that the safety is higher, and the stable operation of the equipment can be further ensured.
Further, the feeding pipeline is further provided with a cleaning pipe through a three-way pipe, the three-way pipe is close to an outlet of the medicament box, the cleaning pipe is further provided with a switching valve, and the switching valve is electrically connected with the control system.
The beneficial effects are that: the cleaning pipe is arranged to wash the residual medicament in the feeding pipeline, so that the pipeline corrosion is reduced, and the service life of the feeding pipeline is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of a second embodiment of 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 feeding pipeline 1, a medicament box 11, a valve 111, a corrosion-resistant centrifugal pump 12, a pressure gauge 13, a flowmeter 14, a back pressure valve 15, a flow regulating valve 16, a control system 2, a display screen 21, an indicator light 22, an alarm 23, a disinfection tank 3, a water inlet pipe 31, a flow sensor 311, a residual chlorine instrument 32, a three-way pipe 4, a cleaning pipe 41 and a switch valve 411.
Example 1
As shown in fig. 1, the barrier-free sodium hypochlorite adding system comprises an adding pipeline 1 and a control system 2 arranged on the adding pipeline 1 and used for controlling the adding of a medicament, wherein the control system 2 in the embodiment comprises a PLC (programmable logic controller), a display screen 21, an indicator lamp 22 and an alarm 23; the dosing pipeline 1 is sequentially provided with a medicament box 11, a corrosion-resistant centrifugal pump 12, a pressure gauge 13, a flowmeter 14, a back pressure valve 15 and a flow regulating valve 16, specifically, a liquid outlet pipe at the bottom of the medicament box 11 is provided with a valve 111, the flowmeter 14 adopts a rotameter, the corrosion-resistant centrifugal pump 12 is also connected with a frequency converter (not shown in the figure), and the frequency converter, the pressure gauge 13, the flowmeter 14, the back pressure valve 15 and the flow regulating valve 16 are all electrically connected with a PLC; the outlet of the feeding pipeline 1 is communicated with the disinfection tank 3, a residual chlorine instrument 32 is further arranged in the disinfection tank 3, a flow sensor 311 is further arranged in the water inlet pipe 31 of the disinfection tank 3, and the flow sensor 311 and the residual chlorine instrument 32 are electrically connected with the PLC.
The specific implementation process is as follows: when the anti-corrosion centrifugal pump is used, the residual chlorine value detected by the residual chlorine instrument 32 and the water inflow rate in the disinfection tank 3 are combined, the frequency converter is controlled by the PLC controller so as to control the frequency of the anti-corrosion centrifugal pump 12, the valve 111 on the chemical tank 11 is opened, the anti-corrosion centrifugal pump 12 conveys the chemical in the chemical tank 11 into the feeding pipeline 1, the pressure gauge 13 and the flowmeter 14 detect the pressure value and the flow value in the feeding pipeline 1 in real time, and the back pressure valve 15 is used for adjusting the pressure in the feeding pipeline 1 so as to ensure that the output flow of the anti-corrosion centrifugal pump 12 is stable; the PLC controls the opening of the flow regulating valve 16 according to the medicament flow in the dosing pipeline 1, so as to control the medicament amount entering the disinfection tank 3, and realize accurate dosing; in the process, if the reagent feeding fails, the indicator lamp 22 is lightened and gives an alarm through the alarm 23, so that the use safety is improved, and the stable operation of the equipment is further ensured.
According to the application, the corrosion-resistant centrifugal pump is used for replacing the metering pump, so that the service life of the pump can be prolonged, the stable operation of equipment is ensured, the problem of addition faults caused by damage of a diaphragm of the metering pump is solved, and the maintenance workload and the maintenance cost are reduced; the frequency control and the flow regulating valve of the centrifugal pump are used for realizing double-insurance control, and the residual chlorine value and the water inflow flow in the disinfection tank are combined, so that the control system is used for accurately controlling the medicament addition, the intelligent degree is high, the excessive medicament addition can be effectively avoided, the medicament cost is saved, and meanwhile, the disinfection by-product is reduced.
Example two
The difference between this embodiment and the first embodiment is that, as shown in fig. 2, the feeding pipe 1 is further connected with a cleaning pipe 41 through a three-way pipe 4, the three-way pipe 4 is close to the outlet of the medicine box 11, the cleaning pipe 41 is further provided with a switch valve 411, the switch valve 411 is electrically connected with the PLC controller, and the specific switch valve 411 is an electric valve. After the sodium hypochlorite medicament is added, the switch valve 411 is controlled to be opened by the PLC controller, and the residual medicament in the adding pipeline 1 can be washed through the cleaning pipe 41 to reduce corrosion and prolong the service life of the adding pipeline 1.
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 barrier-free sodium hypochlorite adding system is characterized by comprising an adding pipeline and a control system, wherein a medicament box, a corrosion-resistant centrifugal pump, a pressure gauge, a back pressure valve and a flow regulating valve are sequentially arranged on the adding pipeline, the corrosion-resistant centrifugal pump is connected with a frequency converter, and the frequency converter, the pressure gauge, the back pressure valve and the flow regulating valve are all electrically connected with the control system; the outlet of the feeding pipeline is communicated with the disinfection tank, a residual chlorine instrument is further arranged in the disinfection tank, a flow sensor is further arranged in the water inlet pipe of the disinfection tank, and the flow sensor and the residual chlorine instrument are electrically connected with the control system.
2. The barrier-free dosing system for sodium hypochlorite of claim 1, wherein: the feeding pipeline is also provided with a flow sensor, the flow sensor is positioned between the pressure gauge and the back pressure valve, and the flow sensor is electrically connected with the control system.
3. The barrier-free dosing system for sodium hypochlorite of claim 2, wherein: the control system comprises a PLC controller, a display screen, an indicator light and an alarm.
4. The barrier-free dosing system for sodium hypochlorite of claim 1, wherein: the feeding pipeline is further provided with a cleaning pipe through a three-way pipe, the three-way pipe is close to an outlet of the medicament box, the cleaning pipe is further provided with a switching valve, and the switching valve is electrically connected with the control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322569757.XU CN220867179U (en) | 2023-09-20 | 2023-09-20 | Barrier-free sodium hypochlorite adding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322569757.XU CN220867179U (en) | 2023-09-20 | 2023-09-20 | Barrier-free sodium hypochlorite adding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220867179U true CN220867179U (en) | 2024-04-30 |
Family
ID=90817040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322569757.XU Active CN220867179U (en) | 2023-09-20 | 2023-09-20 | Barrier-free sodium hypochlorite adding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220867179U (en) |
-
2023
- 2023-09-20 CN CN202322569757.XU patent/CN220867179U/en active Active
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