CN111123790A - Sewage discharge monitoring device - Google Patents
Sewage discharge monitoring device Download PDFInfo
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- CN111123790A CN111123790A CN201911372644.2A CN201911372644A CN111123790A CN 111123790 A CN111123790 A CN 111123790A CN 201911372644 A CN201911372644 A CN 201911372644A CN 111123790 A CN111123790 A CN 111123790A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 8
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- 230000005855 radiation Effects 0.000 claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/167—Measuring radioactive content of objects, e.g. contamination
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24024—Safety, surveillance
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- High Energy & Nuclear Physics (AREA)
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- Spectroscopy & Molecular Physics (AREA)
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Abstract
The invention relates to the technical field of sewage discharge treatment, and discloses a sewage discharge monitoring device which can effectively monitor whether the radioactive index of sewage reaches the standard. The invention comprises the following steps: decay pond, inside be equipped with radiation detector's detection jar, outlet conduit, return water pipeline, with detect jar intercommunication and towards radiation detector's washing pipeline, the pump body, first solenoid valve, second solenoid valve, third solenoid valve and control system. The sewage treated by the sewage treatment device enters the detection tank through the decay tank, the radiation detector in the detection tank detects whether the radioactivity activity of the sewage is below an index, if the radioactivity activity of the sewage does not reach the index, the sewage in the detection tank is back flushed into the decay tank through the flushing pipeline, and meanwhile, in order to avoid detection errors caused by pollution of radioactive nuclide to the radiation detector, the flushing pipeline can be used for flushing and cleaning the radiation detector, so that the detection precision is improved, and repeated detection can be carried out.
Description
Technical Field
The invention relates to the technical field of sewage discharge treatment, in particular to a sewage discharge monitoring device.
Background
In tumor hospitals or nucleiThe sewage discharged from isotope room of medical research institute contains radioactive nuclide, and commonly and frequently used131I (iodine)32P (phosphorus),198Au (gold),24Na (sodium), and the like. The radioactive sewage of nuclear medicine is mainly from excrement produced after the patient takes or injects radioactive isotope in the diagnosis and treatment process, container, cup and laboratory washing water for packing isotope. The activity range of the radioactive sewage is 3.7 x 102～3.7*105Bq/L, collecting 10 half-lives (calculated by the longest half-life isotope) of natural decay through an intermittent or continuous decay pool, and then manually sampling and detecting the radioactivity reaching the standard for emission. At present, hospitals for diagnosis and treatment by using radioactive nuclides in China reach thousands of families, the hospitals are distributed in large and medium-sized cities with dense population, most hospitals lack effective monitoring measures for the discharge of radioactive sewage treatment facilities, and if a large amount of radioactive sewage is generated and is not treated to reach the standard and is discharged, radiation pollution in peripheral areas is easily caused, and the health of the public is harmed.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a sewage discharge monitoring device which can effectively monitor whether the radioactive index of the sewage reaches the standard or not.
According to a first aspect embodiment of the present invention, a sewage discharge monitoring apparatus includes: a decay tank; the detection tank is internally provided with a radiation detector; the water outlet pipeline is used for communicating the decay tank with the detection tank; the water return pipeline is used for communicating the decay tank with the detection tank; a flush line in communication with the detection tank and facing the radiation detector; the pump body is arranged on the water outlet pipeline; the first electromagnetic valve is arranged on the water outlet pipeline; the second electromagnetic valve is arranged on the water return pipeline; the third electromagnetic valve is arranged on the flushing pipeline; and the control system is respectively and electrically connected with the radiation detector, the pump body, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve.
The sewage discharge monitoring device provided by the embodiment of the invention at least has the following beneficial effects: the sewage after handling sewage treatment plant gets into in the detection jar through the decay pond, whether the radioactivity activity degree that detects sewage by the radiation detector in the detection jar is below the index, if not up to standard, then through washing the sewage recoil decay pond of pipeline in with the detection jar in, simultaneously, in order to avoid radiation detector to cause the detection error because of receiving the pollution of radionuclide, the usable pipeline that washes is washed by water to radiation detector, thereby the precision of detection has been improved, and can carry out iterative detection.
According to some embodiments of the invention, the detection tank is further connected with a water drainage pipeline, and the water drainage pipeline is further provided with a fourth electromagnetic valve electrically connected with the control system. And a drainage pipeline is arranged, and when the radiation detector detects that the radioactivity of the sewage reaches below an index value, the sewage is directly drained outwards through the drainage pipeline.
According to some embodiments of the invention, the drain conduit is further provided with a flow meter in electrical connection with the control system. The flowmeter is arranged, and the sewage discharge after reaching the standard can be counted.
According to some embodiments of the invention, a filter is further disposed on the outlet conduit. Set up the filter, can filter the suspended solid of sewage, prevent that the suspended solid of not complete degradation from entering into in the inspection tank or discharging to the outside.
According to some embodiments of the invention, the filter is a Y-filter, disposed between the pump body and the decay tank. The Y-shaped filter is arranged, so that suspended matters can be effectively filtered, each electromagnetic valve and the pump body on the pipeline can be protected, and pipeline blockage and damage to the electromagnetic valve or the pump body are avoided.
According to some embodiments of the invention, the detection canister is a lead canister. Due to the adoption of the lead tank, the radiation detector can be prevented from being interfered by the background radiation of the surrounding environment or the radiation of cosmic rays, and the detection precision and reliability are improved.
According to some embodiments of the present invention, a polyethylene inner barrel is further disposed in the detection tank, the polyethylene inner barrel is respectively communicated with the first interface and the second interface, and the radiation detector is disposed in the polyethylene inner barrel. The polyethylene inner barrel is added, so that secondary pollution of heavy metal lead to discharged sewage caused by the adoption of a lead tank can be avoided.
According to some embodiments of the invention, one end of the flushing pipe is in communication with the detection tank, and the other end is in communication with a tap water pipe or a water storage tank. The detection tank and the radiation detector can be effectively backwashed by using tap water or water stored in the water storage tank, so that sewage which does not reach the standard is prevented from continuing to remain in the detection tank, the detection precision of the radiation detector can be improved, and the subsequent detection precision is prevented from being influenced by residual radioactive nuclide.
According to some embodiments of the present invention, the mobile terminal further includes a background service terminal, and the background service terminal performs signal transmission with the control system in a wireless or wired communication manner. The background service terminal is arranged, so that a user can conveniently inquire and statistically analyze the discharge condition of the sewage and the radioactivity detection data of the sewage, and can remotely execute control instructions such as back flushing or starting discharge or stopping discharge and the like on the control system through the background service terminal.
According to some embodiments of the invention, the background service terminal comprises a hospital monitoring center system and/or an environmental monitoring center system. Realize signal connection with hospital monitoring center system or environmental protection supervisory center, can be convenient for hospital or environmental protection supervisory center to the discharge condition of sewage and the radioactivity activity detection data of sewage inquire and statistical analysis, can realize remote control to control system simultaneously.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a sewage discharge monitoring apparatus according to an embodiment of the present invention;
fig. 2 is a schematic view of electrical control connections of the sewage discharge monitoring apparatus shown in fig. 1.
Reference numerals: the decay tank 100, the detection tank 200, the radiation detector 210, the polyethylene inner barrel 220, the water outlet pipeline 300, the water return pipeline 400, the flushing pipeline 500, the pump body 600, the first electromagnetic valve 700, the second electromagnetic valve 800, the third electromagnetic valve 900, the control system 1000, the water discharge pipeline 1100, the fourth electromagnetic valve 1200, the flowmeter 1300, the filter 1400 and the background service terminal 1500.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 and 2, an embodiment of the first aspect of the invention: a sewage discharge monitoring apparatus comprising: a decay tank 100; a detection tank 200, inside which a radiation detector 210 is provided; a water outlet pipe 300 for communicating the decay tank 100 and the detection tank 200; a water return pipe 400 for communicating the decay tank 100 and the detection tank 200; a flush line 500 in communication with the detection tank 200 and directed towards the radiation detector 210; the pump body 600 is arranged on the water outlet pipeline 300; the first electromagnetic valve 700 is arranged on the water outlet pipeline 300; the second electromagnetic valve 800 is arranged on the water return pipeline 400; a third electromagnetic valve 900 disposed on the flushing pipe 500; the control system 1000 is electrically connected to the radiation detector 210, the pump body 600, the first solenoid valve 700, the second solenoid valve 800, and the third solenoid valve 900, respectively.
It is contemplated that the pump body 600 may also be a bi-directional pump to transfer the wastewater back and forth between the decay tank 100 and the detection tank 200, such that the wastewater in the detection tank 200 may be returned to the decay tank 100 without using the return pipe 400.
It is conceivable that, referring to fig. 1, the ends of the water return pipe 400 and the water outlet pipe 300 connected to the detection tank 200, respectively, may be connected together at the same time and communicated with the detection tank 200 through the same pipe, and similarly, the ends of the flushing pipe 500 and the water outlet pipe 1100 connected to the detection tank 200, respectively, may be connected together at the same time and communicated with the detection tank 200 through the same pipe, i.e., three-way pipes are used for communication between the water return pipe 400, the water outlet pipe 300, and the detection tank 200, and between the flushing pipe 500, the water outlet pipe 1100, and the detection tank 200, respectively. With such an arrangement, the number of interfaces on the test tank 200 can be reduced, thereby reducing the need for a sealing structure, reducing the probability of leakage, and reducing the production cost.
Referring to fig. 1 and 2, in some embodiments of the present invention, a drain pipe 1100 is further connected to the detection tank 200, and a fourth solenoid valve 1200 electrically connected to the control system 1000 is further disposed on the drain pipe 1100. The drainage pipe 1100 is provided to directly discharge the wastewater through the drainage pipe 1100 when the radiation detector 210 detects that the radioactivity of the wastewater is below the index value.
Referring to fig. 1 and 2, in some embodiments of the invention, the drain conduit 1100 is further provided with a flow meter 1300 electrically connected to the control system 1000. The flowmeter 1300 is arranged, and the sewage discharge amount after reaching the standard can be counted.
Referring to fig. 1, in some embodiments of the invention, a filter 1400 is further disposed on the outlet conduit 300. The filter 1400 is provided to filter suspended substances of the sewage, and prevent the incompletely degraded suspended substances from entering the inspection tank 200 or being discharged to the outside.
It is contemplated that the filter 1400 may be selectively patterned according to the sewage condition to filter the corresponding filtrate, and one skilled in the art may perform corresponding selection by combining conventional technical means.
Referring to FIG. 1, in some embodiments of the present invention, the filter 1400 is a Y-filter and is disposed between the pump body 600 and the decay tank 100. The Y-shaped filter is arranged, so that suspended matters can be effectively filtered, each electromagnetic valve and the pump body 600 on the pipeline can be protected, and pipeline blockage and damage to the electromagnetic valve or the pump body 600 are avoided.
Referring to fig. 1 and 2, in some embodiments of the invention, the test canister 200 is a lead canister. Due to the adoption of the lead tank, the radiation detector can be prevented from being interfered by the background radiation of the surrounding environment or the radiation of cosmic rays, and the detection precision and reliability are improved.
Referring to fig. 1, in some embodiments of the present invention, a polyethylene inner barrel 220 is further disposed in the detection tank 200, the polyethylene inner barrel 220 is respectively communicated with the first port and the second port, and the radiation detector 210 is disposed in the polyethylene inner barrel 220. The addition of the polyethylene inner barrel 220 can avoid secondary pollution of heavy metal lead to the discharged sewage caused by the adoption of a lead tank.
In some embodiments of the present invention, one end of the flushing pipe 500 is in communication with the detection tank 200, and the other end is in communication with a tap water pipe (not shown) or a water storage tank (not shown). By using tap water or clean water stored in the water storage tank, the detection tank 200 and the radiation detector 210 can be effectively backwashed, and sewage is returned to the decay tank 100 through the water return pipeline 400, so that sewage which does not reach the standard is prevented from continuing to remain in the detection tank 200, the detection precision of the radiation detector 210 can be improved, and the influence of residual radioactive nuclide on the subsequent detection precision is avoided.
Referring to fig. 2, in some embodiments of the present invention, a background service terminal 1500 is further included, and the background service terminal 1500 performs signal transmission with the control system 1000 through a wireless or wired communication manner. The background service terminal 1500 is arranged, so that a user can conveniently inquire and statistically analyze the discharge condition of the sewage and the radioactivity detection data of the sewage, and can remotely execute control instructions such as back flushing, starting discharge or stopping discharge and the like on the control system 1000 through the background service terminal 1500.
Referring to fig. 2, in some embodiments of the invention, the background service terminal 1500 includes a hospital monitoring center system and/or an environmental monitoring center system. Realize signal connection with hospital monitoring center system or environmental protection supervisory center, can be convenient for hospital or environmental protection supervisory center to the discharge condition of sewage and the radioactivity activity detection data of sewage inquire and statistical analysis, can realize remote control to control system 1000 simultaneously.
In some embodiments of the present invention, the control system 1000 at least includes hardware such as a core processor, an industrial control screen, a wireless module, etc., so as to collect data of the radiation detector 210 and the flow meter 1300 and control the operations of the pump body 600, the first solenoid valve 700, the second solenoid valve 800, the third solenoid valve 900 and the fourth solenoid valve 1200 according to data fed back by the radiation detector 210 and the flow meter 1300, respectively, and their corresponding control procedures are conventional technical means of those skilled in the art and will not be described in detail herein.
It is conceivable that the core processor may directly adopt the core processor provided with the AD conversion unit to directly convert the analog signal fed back by the radiation detector 210 or the flow meter 1300 into a digital signal, or adopt a combination of the core processor and the AD converter to convert the acquired analog signal into a digital signal.
It is conceivable that the core processor may adopt a PLC programmable controller, a single chip microcomputer, a DSP, an ARM, and other processors as the core processor, wherein in this embodiment, the PLC programmable controller is mainly adopted.
The sewage discharge monitoring apparatus according to an embodiment of the present invention will be described in detail in one specific embodiment with reference to fig. 1 and 2. It is to be understood that the following description is only exemplary, and not a specific limitation of the invention.
Referring to fig. 1 and 2, a sewage discharge monitoring apparatus includes: a decay tank 100; a detection tank 200, inside which a radiation detector 210 is provided; a water outlet pipe 300 for communicating the decay tank 100 and the detection tank 200; a water return pipe 400 for communicating the decay tank 100 and the detection tank 200; a flush line 500 in communication with the detection tank 200 and directed towards the radiation detector 210; the pump body 600 is arranged on the water outlet pipeline 300; the first electromagnetic valve 700 is arranged on the water outlet pipeline 300; the second electromagnetic valve 800 is arranged on the water return pipeline 400; a third electromagnetic valve 900 disposed on the flushing pipe 500; the control system 1000 is electrically connected to the radiation detector 210, the pump body 600, the first solenoid valve 700, the second solenoid valve 800, and the third solenoid valve 900, respectively.
Wherein, referring to fig. 1, the ends of the return pipe 400 and the outlet pipe 300, which are connected to the detection tank 200, respectively, may be simultaneously connected together and simultaneously communicated with the detection tank 200 through the same pipe, and similarly, the ends of the flushing pipe 500 and the outlet pipe 1100, which are connected to the detection tank 200, respectively, may be simultaneously connected together and simultaneously communicated with the detection tank 200 through the same pipe. That is, three-way pipes are respectively adopted to realize the communication among the water return pipe 400, the water outlet pipe 300 and the detection tank 200 and among the flushing pipe 500, the water discharge pipe 1100 and the detection tank 200. With such an arrangement, the number of interfaces on the test tank 200 can be reduced, thereby reducing the need for a sealing structure, reducing the probability of leakage, and reducing the production cost.
In this embodiment, the detection tank 200 is further connected to a drain pipe 1100, and the drain pipe 1100 is further provided with a fourth electromagnetic valve 1200 electrically connected to the control system 1000. The drainage pipe 1100 is provided to directly discharge the wastewater through the drainage pipe 1100 when the radiation detector 210 detects that the radioactivity of the wastewater is below the index value.
In this embodiment, the water discharge pipeline 1100 is further provided with a flow meter 1300 electrically connected to the control system 1000. The flowmeter 1300 is arranged, and the sewage discharge amount after reaching the standard can be counted.
In this embodiment, a filter 1400 is further disposed on the outlet pipe 300. The filter 1400 is provided to filter suspended substances of the sewage, and prevent the incompletely degraded suspended substances from entering the inspection tank 200 or being discharged to the outside.
In this embodiment, the filter 1400 is a Y-type filter and is disposed between the pump body 600 and the decay tank 100. The Y-shaped filter is arranged, so that suspended matters can be effectively filtered, each electromagnetic valve and the pump body 600 on the pipeline can be protected, and pipeline blockage and damage to the electromagnetic valve or the pump body 600 are avoided.
In this embodiment, the test canister 200 is a lead canister. Due to the adoption of the lead tank, the radiation detector can be prevented from being interfered by the background radiation of the surrounding environment or the radiation of cosmic rays, and the detection precision and reliability are improved.
In this embodiment, a polyethylene inner barrel 220 is further disposed in the detection tank 200, the polyethylene inner barrel 220 is respectively communicated with the first interface and the second interface, and the radiation detector 210 is disposed in the polyethylene inner barrel 220. The polyethylene inner barrel 220 is added, so that secondary pollution caused by heavy metal lead to the discharged sewage can be avoided.
In this embodiment, one end of the flushing pipe 500 is connected to the detection tank 200, and the other end is connected to a tap water pipe (not shown) or a water storage tank (not shown). By using tap water or clean water stored in the water storage tank, the detection tank 200 and the radiation detector 210 can be effectively backwashed, and sewage is returned to the decay tank 100 through the water return pipeline 400, so that sewage which does not reach the standard is prevented from continuing to remain in the detection tank 200, the detection precision of the radiation detector 210 can be improved, and the influence of residual radioactive nuclide on the subsequent detection precision is avoided.
In this embodiment, the system further includes a background service terminal 1500, and the background service terminal 1500 performs signal transmission with the control system 1000 through a wireless or wired communication manner. The background service terminal 1500 is arranged, so that a user can conveniently inquire and statistically analyze the discharge condition of the sewage and the radioactivity detection data of the sewage, and can remotely execute control instructions such as back flushing, starting discharge or stopping discharge and the like on the control system 1000 through the background service terminal 1500.
In this embodiment, the background service terminal 1500 includes a hospital monitoring center system and an environmental monitoring center system. Realize signal connection with hospital monitoring center system or environmental protection supervisory center, can be convenient for hospital or environmental protection supervisory center to the discharge condition of sewage and the radioactivity activity detection data of sewage inquire and statistical analysis, can realize remote control to control system 1000 simultaneously.
In this embodiment, the control system 1000 at least includes hardware such as a core processor, an industrial control screen, a wireless module, etc., so as to collect data of the radiation detector 210 and the flow meter 1300, and respectively control the operations of the pump body 600, the first electromagnetic valve 700, the second electromagnetic valve 800, the third electromagnetic valve 900, and the fourth electromagnetic valve 1200 according to data fed back by the radiation detector 210 and the flow meter 1300, and corresponding control programs thereof belong to technical means conventional to those skilled in the art, and will not be described in detail herein.
In this embodiment, the core processor mainly adopts a PLC programmable controller, and is matched with an AD converter to realize the effect of converting analog signals into digital signals.
The working principle is as follows:
after sewage treatment plant discharges to decay pond 100 through the sewage after 10 half-lives natural decay handles, control system 1000 starts pump body 600 and opens first solenoid valve 700, at this moment, second solenoid valve 800, third solenoid valve 900 or fourth solenoid valve 1200 are in the closed condition, then the sewage of decay pond 100 gets into in detecting jar 200, radiation detector 210 detects the sewage in detecting jar 200, and feed back the signal that detects to control system 1000, control system 1000 carries out conversion and calculation according to the signal that detects, judge whether the radioactivity of sewage reaches the setting value below:
when the radioactivity of the sewage reaches below the first set value, the control system 1000 opens the fourth electromagnetic valve 1200 and continues to start the pump body 600, so that the sewage reaching the standard is discharged through the drainage pipeline 1100, meanwhile, the flow meter 1300 on the drainage pipeline 1100 detects the flow rate of the discharged sewage and feeds the discharge amount of the sewage back to the control system 1000, and the control system 1000 performs conversion calculation on the discharge amount signal and stores the data;
during the discharging process, the radiation detector 210 will continuously detect the radioactivity of the sewage, when the radioactivity of the sewage is detected to exceed the first set value, the control system 1000 immediately stops the pump body 600 and closes the first solenoid valve 700 and the fourth solenoid valve 1200, then opens the second solenoid valve 800 and the third solenoid valve 900 to make the clean water enter the flushing pipeline 500 into the detection tank 200 and flush the radiation detector 210, meanwhile, the flushed waste liquid will return to the decay tank 100 through the return pipeline 400, during the flushing process, if the detection signal value fed back by the radiation detector 210 reaches the second set value, the flushing is stopped, the control system 1000 closes the second solenoid valve 800 and the third solenoid valve 900, and at the same time, the control system 1000 counts again, when the half-life period reaches 1, the control system 1000 repeats the above working process again, and the detection value fed back by the radiation detector 210, thus, the pump body 600, the first electromagnetic valve 700, the second electromagnetic valve 800, the third electromagnetic valve 900 and the fourth electromagnetic valve 1200 are controlled to operate, and in the working process, the control system 1000 stores the detected radioactivity value, the emission amount, the emission time and other information and sends all the information to the hospital monitoring center system and/or the environmental protection monitoring center system in a wired or wireless mode.
It is conceivable that the first set value and the second set value mentioned in the above-mentioned working process are set by those skilled in the art according to the standard of radioactive wastewater discharge, wherein the second set value is required to be less than or equal to the second set value.
By adopting the sewage discharge monitoring device provided by the embodiment of the invention, at least the following beneficial effects are achieved: the sewage treated by the sewage treatment device enters the detection tank 200 through the decay tank 100, the radiation detector 210 in the detection tank 200 detects whether the radioactivity activity of the sewage is below an index, if the radioactivity activity of the sewage does not reach the index, the sewage in the detection tank 200 is back flushed into the decay tank 100 through the flushing pipeline 500, meanwhile, in order to avoid detection errors caused by pollution of radioactive nuclides to the radiation detector 210, the flushing pipeline 500 can be used for flushing the radiation detector 210, the detection precision is improved, and repeated detection can be carried out; meanwhile, the radioactivity of the discharged sewage is ensured to be below the index, and the discharge standard is met.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A sewage discharge monitoring device, comprising:
a decay tank;
the detection tank is internally provided with a radiation detector;
the water outlet pipeline is used for communicating the decay tank with the detection tank;
the water return pipeline is used for communicating the decay tank with the detection tank;
a flush line in communication with the detection tank and facing the radiation detector;
the pump body is arranged on the water outlet pipeline;
the first electromagnetic valve is arranged on the water outlet pipeline;
the second electromagnetic valve is arranged on the water return pipeline;
the third electromagnetic valve is arranged on the flushing pipeline;
the control system is electrically connected with the radiation detector, the pump body, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve respectively;
the control system respectively controls the pump body, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve according to signals fed back by the radiation detector.
2. The sewage discharge monitoring apparatus according to claim 1, wherein: the detection tank is also connected with a drainage pipeline, and the drainage pipeline is also provided with a fourth electromagnetic valve electrically connected with the control system.
3. The sewage discharge monitoring apparatus according to claim 2, wherein: the drainage pipeline is also provided with a flowmeter electrically connected with the control system.
4. The sewage discharge monitoring apparatus according to claim 1, 2 or 3, wherein: the water outlet pipeline is also provided with a filter.
5. The sewage discharge monitoring apparatus according to claim 4, wherein: the filter is a Y-shaped filter and is arranged between the pump body and the decay tank.
6. The sewage discharge monitoring apparatus according to claim 1, 2 or 3, wherein: the detection tank is a lead tank.
7. The sewage discharge monitoring apparatus according to claim 6, wherein: the detection tank is internally provided with a polyethylene inner barrel which is respectively communicated with the first interface and the second interface, and the radiation detector is arranged in the polyethylene inner barrel.
8. The sewage discharge monitoring apparatus according to claim 1, 2 or 3, wherein: one end of the flushing pipeline is communicated with the detection tank, and the other end of the flushing pipeline is communicated with a tap water pipe or a water storage tank.
9. The sewage discharge monitoring apparatus according to claim 1, 2 or 3, wherein: the system also comprises a background service terminal which is in signal transmission with the control system in a wireless or wired communication mode.
10. The sewage discharge monitoring apparatus according to claim 9, wherein: the background service terminal comprises a hospital monitoring center system and/or an environment-friendly supervision center system.
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| CN201911372644.2A CN111123790A (en) | 2019-12-27 | 2019-12-27 | Sewage discharge monitoring device |
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| CN201911372644.2A CN111123790A (en) | 2019-12-27 | 2019-12-27 | Sewage discharge monitoring device |
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Application publication date: 20200508 |