CN219709182U - Sewage treatment's disinfection equipment control system - Google Patents
Sewage treatment's disinfection equipment control system Download PDFInfo
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- CN219709182U CN219709182U CN202321369837.4U CN202321369837U CN219709182U CN 219709182 U CN219709182 U CN 219709182U CN 202321369837 U CN202321369837 U CN 202321369837U CN 219709182 U CN219709182 U CN 219709182U
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- intermediate relay
- disinfection equipment
- sewage treatment
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- ultraviolet disinfection
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 140
- 239000010865 sewage Substances 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims description 32
- 238000004891 communication Methods 0.000 claims description 4
- 238000004065 wastewater treatment Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 14
- 230000001954 sterilising effect Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- Physical Water Treatments (AREA)
Abstract
The utility model provides a disinfection equipment control system for sewage treatment, which comprises a three-phase power supply, an air switch, a contactor main contact, ultraviolet disinfection equipment, a starting button, a contactor auxiliary normally open contact, a first intermediate relay normally closed contact, a contactor coil, a flow transmitter and a PLC. The utility model provides a method for measuring a flow signal of a water inlet of ultraviolet disinfection equipment through a flow transmitter and transmitting the flow signal to a PLC, wherein the PLC controls a first intermediate relay to be closed when the flow of the water inlet of the ultraviolet disinfection equipment is lower than a preset flow threshold, at the moment, a normally closed contact of the first intermediate relay is opened, so that a contactor coil is powered off, a main contact of the contactor is opened, the ultraviolet disinfection equipment is powered off to stop running, and the ultraviolet disinfection equipment is prevented from continuously running when the water inlet of the ultraviolet disinfection equipment is low in flow. The device has high degree of automation, realizes an unattended mode, is convenient to operate, is safe and reliable, and prolongs the service life of ultraviolet disinfection equipment.
Description
Technical Field
The utility model relates to the technical field of environmental protection facility electrical automation, in particular to a disinfection equipment control system for sewage treatment.
Background
In sewage treatment, an ultraviolet sterilizing apparatus is used to sterilize microorganisms and remove harmful substances in sewage, and when water flows through a lamp tube of the ultraviolet sterilizing apparatus, the lamp tube emits ultraviolet sterilization.
The ultraviolet disinfection equipment needs a certain flow to ensure sufficient disinfection effect, and if the ultraviolet disinfection equipment runs at a low flow, the following adverse effects are caused on the use effect of the disinfection equipment: first, reduce the disinfection effect: the flow of the water inlet of the disinfection equipment is too low, the water flow can become slow, and impurities and microorganisms in the water can stay in the disinfection room for a longer time, so that the disinfection effect is reduced. Second, increasing maintenance costs: when the water inlet flow of the disinfection apparatus is too low, the lamp tube of the disinfection apparatus may collect more impurities and organics, which may lead to a shortened service life of the lamp tube and require more frequent maintenance and replacement. Third,: and the energy consumption is increased: when the water inlet flow rate is too low, the sterilizing apparatus requires a longer time to treat the same amount of water, resulting in waste of energy and an increase in cost.
Disclosure of Invention
The utility model provides a disinfection equipment control system for sewage treatment, which is used for controlling ultraviolet disinfection equipment of the sewage treatment system and avoiding the operation of the ultraviolet disinfection equipment when the water inlet of the ultraviolet disinfection equipment is at low flow.
The utility model provides a disinfection equipment control system for sewage treatment, which comprises a disinfection equipment control loop, a flow transmitter and a PLC (programmable logic controller);
the disinfection equipment control loop comprises a three-phase power supply, an air switch, a contactor main contact, ultraviolet disinfection equipment, a starting button, a contactor auxiliary normally open contact, a first intermediate relay normally closed contact, a contactor coil, a flow transmitter and a PLC; one end of the air switch is connected with the output end of the three-phase power supply, and the other end of the air switch is connected with the ultraviolet disinfection equipment through the main contact of the contactor; the output end of the A phase line of the three-phase power supply is sequentially connected with the air switch, the starting button, the normally closed contact of the first intermediate relay and the contactor coil in series, and then is connected with a zero line; the auxiliary normally open contacts of the contactor are connected in parallel with the two ends of the starting button;
one end of the first intermediate relay is connected with a normally-closed contact of the first intermediate relay, and the other end of the first intermediate relay is connected with one end of the flow transmitter through a PLC; the other end of the flow transmitter is connected with a water inlet of ultraviolet disinfection equipment, and is used for measuring flow signals of the water inlet of the ultraviolet disinfection equipment and transmitting the flow signals to the PLC, and the ultraviolet disinfection equipment is arranged in a sewage treatment tank.
Preferably, the control system of the disinfection apparatus for sewage treatment further comprises a stop button, which is connected in series between the start button and the normally closed contact of the first intermediate relay.
Preferably, the control system of the sewage treatment disinfection equipment further comprises a liquid level transmitter, a second intermediate relay and a normally closed contact of the second intermediate relay; the second intermediate relay normally-closed contact is connected in series between the first intermediate relay normally-closed contact and the contactor coil;
one end of the second intermediate relay is connected with a normally closed contact of the second intermediate relay, the other end of the second intermediate relay is connected with the liquid level transmitter through the PLC, and the liquid level transmitter is arranged in the sewage treatment tank and is used for measuring a liquid level signal of the sewage treatment tank and transmitting the liquid level signal to the PLC.
Preferably, the control system of the disinfection equipment for sewage treatment further comprises an analog quantity module, wherein the analog quantity module is used for controlling the disinfection equipment for sewage treatment; the input end of the analog quantity module is respectively connected with the flow transmitter and the liquid level transmitter, and the output end of the analog quantity module is connected with the input end of the PLC and is used for converting analog quantity signals into digital quantity signals which can be received by the PLC.
Preferably, the disinfection equipment control system for sewage treatment further comprises a disinfection equipment management platform, and the disinfection equipment management platform is in communication connection with the PLC.
Preferably, the model of the PLC is DVP80EH00R3.
Preferably, the flow transmitter is of the type LWGB-15.
Preferably, the ultraviolet disinfection device is a pipeline type ultraviolet sterilizer; the model of the pipeline type ultraviolet sterilizer is RZ-UV2-LS60.
According to the sewage treatment disinfection equipment control system provided by the utility model, the flow signal of the water inlet of the ultraviolet disinfection equipment is measured through the flow transmitter and transmitted to the PLC, the PLC controls the first intermediate relay to be closed when the flow of the water inlet of the ultraviolet disinfection equipment is lower than the preset flow threshold, at the moment, the normally closed contact of the first intermediate relay is opened, so that the contactor coil is powered off, the main contact of the contactor is opened, and the ultraviolet disinfection equipment is powered off to stop running. Adverse effects caused by continuous operation of the ultraviolet disinfection equipment at low flow rate of the water inlet are avoided. The device has high degree of automation, realizes an unattended mode, is convenient to operate, is safe and reliable, and prolongs the service life of ultraviolet disinfection equipment.
Drawings
Fig. 1 is a schematic circuit diagram of a control loop of a disinfection apparatus according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of PLC control for sewage treatment according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of a part of a control system of a disinfection apparatus for sewage treatment according to an embodiment of the present utility model.
In the drawing, an air switch 1, a contactor main contact 2, an ultraviolet disinfection device 3, a start button 4, a contactor coil auxiliary normally-open contact 5, a stop button 6, a first intermediate relay normally-closed contact 7, a second intermediate relay normally-closed contact 8, a sewage treatment tank 9, a contactor coil 10, a flow transmitter 11, a liquid level transmitter 12, an analog quantity module 14, a PLC15, a disinfection device management platform 16, a first intermediate relay 17 and a second intermediate relay 18.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In sewage treatment, an ultraviolet sterilizing apparatus is used to sterilize microorganisms and remove harmful substances in sewage, and when water flows through a lamp tube of the ultraviolet sterilizing apparatus, the lamp tube emits ultraviolet sterilization. The ultraviolet disinfection equipment needs a certain flow to ensure sufficient disinfection effect, and if the ultraviolet disinfection equipment runs at a low flow, the following adverse effects are caused on the use effect of the disinfection equipment: first, reduce the disinfection effect: the flow of the water inlet of the disinfection equipment is too low, the water flow can become slow, and impurities and microorganisms in the water can stay in the disinfection room for a longer time, so that the disinfection effect is reduced. Second, increasing maintenance costs: when the water inlet flow of the disinfection apparatus is too low, the lamp tube of the disinfection apparatus may collect more impurities and organics, which may lead to a shortened service life of the lamp tube and require more frequent maintenance and replacement. Third,: and the energy consumption is increased: when the water inlet flow rate is too low, the sterilizing apparatus requires a longer time to treat the same amount of water, resulting in waste of energy and an increase in cost.
In view of the above, embodiments of the present utility model are directed to a control system for a disinfection apparatus for sewage treatment, which is developed to avoid the operation of an ultraviolet disinfection apparatus at a low flow rate at its water inlet, and which will be described by way of examples with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a disinfection device control system for sewage treatment according to an embodiment of the present utility model, and as shown in fig. 1, the system includes a disinfection device control loop, a flow transmitter 11, and a PLC (programmable logic controller) 15;
the disinfection equipment control loop comprises a three-phase power supply, an air switch 1, a contactor main contact 2, ultraviolet disinfection equipment 3, a start button 4, a contactor auxiliary normally open contact 5, a first intermediate relay 17, a first intermediate relay normally closed contact 7, a contactor coil 10, a flow transmitter 11 and a PLC15;
one end of the air switch 1 is connected with the output end of a three-phase power supply, and the other end of the air switch is connected with the ultraviolet disinfection equipment 3 through the main contact 2 of the contactor. In this embodiment, the ultraviolet disinfection apparatus 3 is a pipeline type ultraviolet disinfector with the model of RZ-UV2-LS60. The output end of the A phase line of the three-phase power supply is connected with the air switch 1, the starting button 4, the normally closed contact 7 of the first intermediate relay and the contactor coil 10 in series in sequence, and then is connected with a zero line; the contactor auxiliary normally open contacts 5 are connected in parallel with two ends of the starting button 4. When the ultraviolet disinfection device 3 is required to work, the starting button 5 is pressed to enable the contactor coil 10 to be electrified, at the moment, the main contactor 2 is turned on, and the air switch 1 is turned on.
One end of the first intermediate relay 17 is connected with the normally closed contact 7 of the first intermediate relay, and the other end of the first intermediate relay 17 is connected with one end of the flow transmitter 11 through the PLC15; the other end of the flow transmitter 11 is connected with a water inlet of the ultraviolet disinfection equipment 3, and is used for measuring flow signals of the water inlet of the ultraviolet disinfection equipment and transmitting the flow signals to the PLC15, and the ultraviolet disinfection equipment 3 is arranged in the sewage treatment tank 9.
Specifically, referring to fig. 1, the three-phase power supply includes three live wires of a phase, B phase, and C phase, and a neutral wire N. One end of the air switch 1 is connected with the output end of the three-phase power supply, and the other end of the air switch is connected with the ultraviolet disinfection equipment 3 through the main contact 2 of the contactor. The air switch 1 can be used for switching on and off the ultraviolet disinfection equipment 3, and when the main contact 2 of the contactor is closed, the air switch 1 is used for switching on the ultraviolet disinfection equipment; when the main contact 2 of the contactor is opened, the air switch 1 opens the ultraviolet disinfection device.
The flow transmitter 11 is provided in the sewage treatment tank for measuring a liquid level signal of the sewage treatment tank and transmitting to a PLC for controlling opening/closing of the first intermediate relay 17. In this embodiment, a low water level protection program is preset in the PLC, and when the PLC determines that the liquid level of the sewage treatment tank is lower than the preset liquid level threshold according to the received liquid level signal, the PLC controls the first intermediate relay to be closed. In this embodiment, the model of the PLC is selected as DVP80EH00R3.
The working principle of the ultraviolet disinfection equipment protection device is as follows: after the ultraviolet disinfection equipment is started, a flow signal of a water inlet of the ultraviolet disinfection equipment is measured through a flow transmitter 11 and transmitted to a PLC, the PLC controls a first intermediate relay 17 to be opened when the flow of the water inlet of the ultraviolet disinfection equipment is higher than a preset flow threshold value, at the moment, a normally closed contact 7 of the first intermediate relay is closed, a contactor coil 10 is electrified, a main contact 2 of the contactor is closed, and the ultraviolet disinfection equipment 3 operates normally. When the PLC judges that the flow of the water inlet of the ultraviolet disinfection equipment is lower than the preset flow threshold according to the received flow signal, the PLC controls the first intermediate relay 17 to be closed, and at the moment, the normally closed contact 7 of the first intermediate relay is opened, so that the contactor coil 10 is powered off, the main contact 2 of the contactor is opened, the ultraviolet disinfection equipment 3 is powered off and stops running, and the energy consumption waste and the disinfection effect reduction caused by the continuous running of the ultraviolet disinfection equipment at the low flow of the water inlet of the ultraviolet disinfection equipment are avoided.
The control system for the disinfection equipment for sewage treatment provided by the embodiment of the utility model has the advantages of high automation degree, realization of an unattended mode, convenience in operation, safety and reliability, and improvement of the service life of ultraviolet disinfection equipment.
In an alternative embodiment, the ultraviolet disinfection device protection device further comprises a stop button 6, said stop button 6 being connected in series between the start button 4 and the first intermediate relay normally closed contact 7.
When it is necessary to manually turn off the ultraviolet sterilizing device 3, the stop button 6 is pressed to turn off the contactor coil, at which time the contactor main contact 2 is opened and the air switch 1 turns off the ultraviolet sterilizing device.
The ultraviolet sterilizing device is strictly prohibited from operating without water, which may damage the lamp tube. If the ultraviolet disinfection device is operated without water, the lamp tube may overheat due to lack of cooling effect of the water, which may cause damage to the lamp tube. In addition, no water flows through the lamp tube, and bacteria and viruses cannot be brought into the sterilization range of the lamp tube, so that the sterilization effect is greatly reduced. In response to the above-described problems, in an alternative embodiment, as shown in fig. 2, the ultraviolet sterilizing apparatus protecting device further includes a liquid level transmitter 12, a second intermediate relay 18, and a second intermediate relay normally-closed contact 8; the second intermediate relay normally-closed contact 8 is connected in series between the first intermediate relay normally-closed contact 7 and the contactor coil 10;
one end of the second intermediate relay 18 is connected with the second intermediate relay normally-closed contact 8, the other end of the second intermediate relay 18 is connected with one end of the liquid level transmitter 12 through the PLC15, and the PLC is used for controlling the opening/closing of the first intermediate relay 18. The other end of the liquid level transmitter 12 is connected with the input end of the ultraviolet disinfection equipment 3 and is used for measuring a liquid level signal of the sewage treatment tank and transmitting the liquid level signal to the PLC15. In this embodiment, the type of level transmitter is selected to be BD-313.
Specifically, the liquid level signal of the sewage treatment tank is measured through the liquid level transmitter 12 and transmitted to the PLC, a low water level protection program is preset in the PLC, after the ultraviolet disinfection equipment is started, the PLC controls the second intermediate relay 18 to be opened when the liquid level of the sewage treatment tank is higher than a preset liquid level threshold value, at the moment, the normally closed contact 8 of the second intermediate relay is closed, the contactor coil 10 is electrified, the main contact 2 of the contactor is closed, and the ultraviolet disinfection equipment 3 operates normally. When the PLC judges and learns that the liquid level of the sewage treatment tank is lower than the preset liquid level threshold according to the received liquid level signal of the sewage treatment tank, the PLC controls the second intermediate relay 18 to be closed, and at the moment, the normally closed contact 8 of the second intermediate relay is opened, so that the contactor coil 10 is powered off, the main contact 2 of the contactor is opened, the ultraviolet disinfection equipment is powered off and stops running, and damage to an ultraviolet disinfection equipment lamp tube caused by the too low water level of the sewage treatment tank is avoided.
It will be appreciated that when the water level of the operating environment of the ultraviolet disinfection device is too low, or the water inlet flow rate of the ultraviolet disinfection device is too low, at least one of the first intermediate relay normally-closed contact 7 and the third intermediate relay normally-closed contact 8 is opened, the loop of the contactor coil 10 is opened at this time, the operation of the ultraviolet disinfection device 3 is stopped, and the ultraviolet disinfection device is prevented from being broken down due to the fact that the ultraviolet disinfection device continues to operate in an unfavorable state.
In an alternative embodiment, as shown in fig. 3, the ultraviolet disinfection device protection apparatus further comprises an analog module 14, said analog module 14; the input end of the analog quantity module 14 is respectively connected with the flow transmitter 11 and the liquid level transmitter 12, and the output end of the analog quantity module 14 is connected with the input end of the PLC15 and is used for converting analog quantity signals into digital quantity signals which can be received by the PLC15.
In an alternative embodiment, the ultraviolet disinfection device protection device further comprises a disinfection device management platform 16, said disinfection device management platform 16 being in communication with the PLC15. It will be appreciated that the disinfection apparatus management platform 16 is a cloud platform pre-established by disinfection apparatus management staff for collecting relevant information about the disinfection apparatus. The disinfection equipment management platform can also store, process, analyze and visually display the collected data. The PLC and the disinfection equipment management platform 16 realize data intercommunication, and three ultraviolet disinfection equipment protection programs of the PLC are displayed in the disinfection equipment management platform 16, including a low-flow protection program and a low-water level protection program. And the PLC sends the received flow signal of the water inlet of the ultraviolet disinfection equipment and the liquid level signal of the sewage treatment tank to the disinfection equipment management platform, and the flow value of the water inlet of the ultraviolet disinfection equipment and the liquid level value of the sewage treatment tank are displayed on a display screen of the disinfection equipment management platform. The disinfection equipment management platform is in wireless connection with the mobile terminal (such as a mobile phone and a PAD), supports mobile phone APP to view, views on a network, and achieves the function of intelligent management of the ultraviolet disinfection equipment cloud platform.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. A disinfection equipment control system for sewage treatment, which is characterized by comprising a disinfection equipment control loop, a flow transmitter (11) and a PLC (15);
the control loop of the disinfection equipment comprises a three-phase power supply, an air switch (1), a main contact (2) of a contactor, ultraviolet disinfection equipment (3), a starting button (4), an auxiliary normally open contact (5) of the contactor, a first intermediate relay (17), a normally closed contact (7) of the first intermediate relay and a contactor coil (10); one end of the air switch (1) is connected with the output end of the three-phase power supply, and the other end of the air switch is connected with the ultraviolet disinfection equipment (3) through the main contact (2) of the contactor; the output end of the A phase line of the three-phase power supply is sequentially connected with the air switch (1), the starting button (4), the normally closed contact (7) of the first intermediate relay and the contactor coil (10) in series, and then is connected with a zero line; the auxiliary normally open contact (5) of the contactor is connected in parallel with the two ends of the starting button (4);
one end of the first intermediate relay (17) is connected with the normally closed contact (7) of the first intermediate relay, and the other end of the first intermediate relay (17) is connected with one end of the flow transmitter (11) through the PLC (15); the other end of the flow transmitter (11) is connected with a water inlet of the ultraviolet disinfection equipment (3) and is used for measuring flow signals of the water inlet of the ultraviolet disinfection equipment and transmitting the flow signals to the PLC (15), and the ultraviolet disinfection equipment (3) is arranged in the sewage treatment tank (9).
2. A disinfection apparatus control system for sewage treatment according to claim 1, further comprising a stop button (6), said stop button (6) being connected in series between the start button (4) and the first intermediate relay normally closed contact (7).
3. A disinfection apparatus control system for sewage treatment according to claim 2, further comprising a liquid level transducer (12), a second intermediate relay (18) and a second intermediate relay normally closed contact (8); the second intermediate relay normally-closed contact (8) is connected in series between the first intermediate relay normally-closed contact (7) and the contactor coil (10);
one end of a second intermediate relay (18) is connected with a second intermediate relay normally-closed contact (8), the other end of the second intermediate relay (18) is connected with the liquid level transmitter (12) through a PLC (15), and the liquid level transmitter (12) is arranged in the sewage treatment tank (9) and is used for measuring a liquid level signal of the sewage treatment tank and transmitting the liquid level signal to the PLC (15).
4. A disinfection apparatus control system for wastewater treatment according to claim 1 and also comprising an analog module (14), said analog module (14); the input end of the analog quantity module (14) is respectively connected with the flow transmitter (11) and the liquid level transmitter (12), and the output end of the analog quantity module (14) is connected with the input end of the PLC (15) and is used for converting analog quantity signals into digital quantity signals which can be received by the PLC (15).
5. A disinfection apparatus control system for sewage treatment according to claim 1, further comprising a disinfection apparatus management platform (16), said disinfection apparatus management platform (16) being in communication with the PLC (15).
6. A control system for a disinfection apparatus for sewage treatment according to claim 1, wherein said PLC (15) is of the model DVP80EH00R3.
7. A disinfection apparatus control system for sewage treatment according to claim 1, wherein said flow transmitter (11) is of the LWGB-15 type.
8. A disinfection apparatus control system for sewage treatment according to claim 1, wherein said ultraviolet disinfection apparatus (3) is a pipeline type ultraviolet disinfector; the model of the pipeline type ultraviolet sterilizer is RZ-UV2-LS60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321369837.4U CN219709182U (en) | 2023-06-01 | 2023-06-01 | Sewage treatment's disinfection equipment control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321369837.4U CN219709182U (en) | 2023-06-01 | 2023-06-01 | Sewage treatment's disinfection equipment control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219709182U true CN219709182U (en) | 2023-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321369837.4U Active CN219709182U (en) | 2023-06-01 | 2023-06-01 | Sewage treatment's disinfection equipment control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219709182U (en) |
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2023
- 2023-06-01 CN CN202321369837.4U patent/CN219709182U/en active Active
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