CN218403867U - Nuclear medicine radioactive waste liquid intelligent processing monitoring facilities - Google Patents
Nuclear medicine radioactive waste liquid intelligent processing monitoring facilities Download PDFInfo
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- CN218403867U CN218403867U CN202222696326.5U CN202222696326U CN218403867U CN 218403867 U CN218403867 U CN 218403867U CN 202222696326 U CN202222696326 U CN 202222696326U CN 218403867 U CN218403867 U CN 218403867U
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Abstract
The utility model relates to a nuclear medicine radioactive waste liquid intelligent processing monitoring device, which comprises an automatic control device, a steam-water backwashing device, an aeration device and a waste liquid collecting and processing box, wherein the waste liquid collecting and processing box is provided with a liquid inlet pipeline, a decay clean room and a radionuclide monitoring device, and the decay clean room comprises a radioactive sludge decay area and a waste liquid decay area; the radioactive sludge decay area is connected with a first pumping pipeline provided with a sludge drainage pump, the waste liquid decay area is connected with a second pumping pipeline provided with a waste liquid drainage pump, the first pumping pipeline is provided with a pollution discharge control valve, and the second pumping pipeline is provided with a drainage control valve; and the automatic control device is electrically connected with the steam-water backwashing device, the aeration device, the radionuclide monitoring device, the liquid inlet control valve in the liquid inlet pipeline, the sludge draining pump, the waste liquid draining pump, the sewage draining control valve and the draining control valve. This equipment realizes the intelligent processing of nuclear medicine radioactive waste liquid, and discharge to reach standard improves security, the feature of environmental protection, intelligence and the convenience of equipment operation.
Description
Technical Field
The utility model relates to a nuclear medicine radioactive waste liquid treatment technical field especially relates to a monitoring facilities is handled to nuclear medicine radioactive waste liquid intelligence.
Background
Nuclear medicine is an emerging discipline that employs nuclear technology to diagnose, treat and study disease. The nuclear medicine is used in hospital diagnosis and treatment, and the radioactive medicines used in nuclear medicine are generally packaged in disposable containers and directly injected or taken to patients, and the patients go to the toilet to excrete during dynamic observation to produce radioactive excrement, and the radioactive excrement produced in the process of diagnosis and treatment by using nuclear technology, the disposable containers packaged with the radioactive medicines, laboratory washing water and other radioactive waste liquid can be discharged after reaching the standard through decay treatment.
Before 11/1/2021, the treatment of radioactive waste liquid from nuclear medicine is carried out according to the discharge Standard of Water pollutants for medical institutions GB18466-2005. The treatment of radioactive waste liquid from nuclear medicine after 11/1 days in 2021 is implemented by the discharge standards of water pollutants of medical institutions GB18466-2005 and the radiation protection and safety requirements of nuclear medicine HJ1188-2021 (implemented 11/1 days in 2021). The nuclear medicine radiation protection and safety requirement HJ1188-2021 (applied 11/1/2021) makes the treatment and radiation monitoring of radioactive waste liquid more clear and detailed. New requirements are provided for the storage time, discharge detection, automatic control, intelligent management and the like of the radioactive waste liquid in the decay tank, for example, the radioactive waste liquid containing 131I nuclide needs more than 180 days to stay in the decay tank. And the discharge Standard of Water pollutants for medical institutions GB18466-2005 requires 131 The radioactive waste liquid of the I nuclide only stays in the decay pond for 81 days (10 half-life periods), and the like.
In the prior art, the nuclear medicine radioactive waste liquid is treated by adopting a traditional treatment form of a septic tank and a concrete decay tank, and the nuclear medicine radioactive waste liquid is collected through a pipe network and is discharged into the concrete decay tank after being precipitated by the septic tank (made of concrete or glass fiber reinforced plastics). The radioactive decay in the concrete decay tank makes the nuclide in the radioactive waste liquid decay, and reduces the radioactive activity concentration of the waste liquid. After the decay time of 10 half-life periods, the sewage is discharged into a municipal sewage pipe network after being qualified through sampling and monitoring. Meanwhile, the traditional septic tank and concrete decay tank treatment process structures are buried underground, and only maintenance and sampling ports are reserved.
The traditional treatment form of the septic tank and the concrete decay tank has the following problems:
(1) The septic tank and the concrete decay tank are arranged, the whole treatment device is large in size and large in occupied space, particularly after nuclear medicine radiation protection and safety requirements are implemented HJ1188-2021, the retention time of radioactive waste liquid in the decay tank is prolonged, the volume of the decay tank needs to be further enlarged, the retention time requirements in the nuclear medicine radiation protection and safety requirements HJ1188-2021 can be met, the size of the treatment device is further increased, and more space is occupied.
(2) Precipitated sludge in the septic tank and sludge after decay cleaning treatment in the concrete decay tank need to be cleared and drawn manually, and the monitoring of the effluent water quality after treatment needs to be sampled and detected manually, so that the labor cost is increased, and the requirements on automatic control and intelligent management in the radiation protection and safety requirements of nuclear medicine HJ1188-2021 are not met.
(3) The precipitated sludge in the septic tank is manually cleaned and then is still treated with common biological sludge after decay and cleaning treatment by a professional treatment plant, so that the complexity of the nuclear medicine radioactive waste liquid treatment procedure is increased.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem, the utility model provides a monitoring facilities is handled to nuclear medicine radioactive waste liquid intelligence, equipment include automatic control device, soda back flush device and waste liquid collection processing case, wherein:
the waste liquid collecting and treating box is internally provided with a liquid inlet pipeline, a decay clean room and a radionuclide monitoring device, the decay clean room is divided into a radioactive sludge decay area and a waste liquid decay area by a vertically arranged filter screen, and the decay clean room is internally provided with a liquid level monitoring device;
one end of the liquid inlet pipeline penetrates out of the waste liquid collecting and treating box to be connected with the waste liquid collecting pipeline, the other end of the liquid inlet pipeline penetrates into a radioactive sludge decay area of the decay clean room, and a liquid inlet control valve is arranged on the liquid inlet pipeline;
the bottom of the radioactive sludge decay area is provided with a sludge discharge port, the bottom of the waste liquid decay area is provided with a waste liquid discharge port, the sludge discharge port is connected with a municipal sewage pipe network through a first pumping pipeline provided with a sludge drainage pump, the waste liquid discharge port is connected with the municipal sewage pipe network through a second pumping pipeline provided with a waste liquid drainage pump, the first pumping pipeline is provided with a drainage control valve, and the second pumping pipeline is provided with a drainage control valve;
the radionuclide monitoring device is connected with the waste liquid discharge port through a waste liquid sampling pipeline;
the steam-water backwashing device is connected with an exhaust and drainage pipe arranged at the bottom of the radioactive sludge decay area through a steam-water backwashing pipeline;
and the automatic control device is respectively and electrically connected with the steam-water backwashing device, the radionuclide monitoring device, the liquid level monitoring device, the liquid inlet control valve, the sludge draining pump, the waste liquid draining pump, the pollution discharge control valve and the draining control valve.
Furthermore, the equipment also comprises a display device which is electrically connected with the automatic control device.
Further, the equipment also comprises an aeration device, the aeration device is connected with an exhaust and drainage pipe arranged at the bottom of the radioactive sludge decay area through an aeration pipeline, and the aeration device is electrically connected with an automatic control device.
Furthermore, the liquid inlet pipeline in the radioactive sludge decay zone is a spiral pipeline, and a plurality of water outlets are formed in the spiral pipeline.
Furthermore, radioactive sludge decay zone bottom from supreme down is equipped with fine gravel thing filling layer and coarse gravel thing filling layer in proper order, and exhaust drainpipe sets up between fine gravel thing filling layer and coarse gravel thing filling layer, and exhaust drainpipe is the perforated pipe.
Furthermore, the exhaust and drainage pipe comprises an exhaust and drainage main pipe and a plurality of exhaust and drainage branch pipes which are respectively connected with the exhaust and drainage main pipe, and the plurality of exhaust and drainage branch pipes are uniformly distributed between the fine gravel filling layer and the coarse gravel filling layer.
Further, decay clean room top is equipped with exhaust duct, and exhaust duct one end is equipped with the air inlet, and the air inlet is located radioactive sludge decay district, and the other end is worn out decay clean room and waste liquid in proper order and is collected the processing case to discharge the inside waste gas of decay clean room from the gas vent.
Further, the equipment also comprises an exhaust purification treatment device, wherein the exhaust purification treatment device is connected with an exhaust port of the exhaust pipeline, and the exhaust purification treatment device is electrically connected with the automatic control device.
Further, radioactive sludge decay district top, waste liquid decay district top and bottom all are equipped with the washing pipeline, are equipped with a plurality of water jets on the washing pipeline, still are equipped with water spray control flap on the washing pipeline, and water spray control flap is connected with automatic control device electricity.
Further, the waste liquid collecting and processing box comprises a plurality of waste liquid collecting and processing boxes for respectively collecting and processing different or same radioactive waste liquids.
The utility model provides a monitoring facilities is handled to nuclear medicine radioactive liquid waste intelligence has following beneficial effect at least:
(1) The septic tank in the traditional treatment device is cancelled, only the decay clean room is arranged, the volume of the whole intelligent treatment monitoring device is reduced, and less space is occupied.
(2) The clean room of decay includes radioactive sludge decay district and waste liquid decay district, radioactive sludge decay district is used for decaying radioactive sludge, the waste liquid decay district is arranged in liquid and the tiny particle waste matter to radioactive waste liquid decay, thereby realized carrying out decay cleaning process with radioactive sludge and waste liquid together, it is clean to need not to decay through professional processing plant after the radioactive sludge discharges, can directly discharge to municipal sewer pipe network, nuclear medicine radioactive waste liquid treatment procedure has been simplified.
(3) By arranging the automatic control device, the radionuclide monitoring device, the liquid level monitoring device, the liquid inlet control valve, the sludge drainage pump, the waste liquid drainage pump, the drainage control valve and the drainage control valve, the intelligent treatment and standard discharge of the radioactive waste liquid in nuclear medicine are realized, the whole process does not need manual participation, a large amount of labor cost is saved, the safety, the environmental protection, the intelligence and the convenience are realized, and the requirements on the aspects of automatic control and intelligent management in the radiation protection and safety requirement of nuclear medicine HJ1188-2021 are met.
(4) The device is also provided with a steam-water backwashing device and an aeration device, wherein the steam-water backwashing device can perform steam-water backwashing, so that the radioactive sludge is prevented from hardening, and the decayed radioactive sludge is conveniently and smoothly discharged; the aeration device can perform aerobic aeration, and anaerobic biological reaction generated by radioactive sludge is avoided.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic plan view of a waste liquid collecting and treating tank according to an embodiment of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic diagram illustrating a control principle of an intelligent nuclear medicine radioactive waste liquid treatment and monitoring device according to an embodiment of the present invention;
1-automatic control device, 2-steam water back flushing device, 3-waste liquid collection and treatment box, 301-liquid inlet pipeline, 302-decay cleaning room, 303-radionuclide monitoring device, 304-filter screen, 305-radioactive sludge decay zone, 306-waste liquid decay zone, 307-liquid inlet control valve, 308-sludge drainage pump, 309-waste liquid drainage pump, 310-pollution discharge control valve, 311-drainage control valve, 312-air exhaust and drainage pipe, 313-air exhaust pipeline, 314-cleaning pipeline, 315-liquid level monitoring device, 4-display device and 5-aeration device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In an embodiment of the utility model, as shown in fig. 1-3, provide a nuclear medicine radioactive liquid waste intelligent treatment monitoring facilities, equipment includes automatic control device 1, soda back flush unit 2 and waste liquid collection processing case 3, wherein:
The waste liquid treatment collecting box 3 is used for collecting and treating the radioactive waste liquid of nuclear medicine and monitoring the radioactive nuclide in the radioactive waste liquid of nuclear medicine. Wherein, the radioactive waste liquid of nuclear medicine enters the radioactive sludge decay zone 305 in the decay clean room 302 through the liquid inlet pipeline 301, and since the radioactive sludge decay zone 305 and the waste liquid decay zone 306 are separated only by the filter screen 304, the liquid in the radioactive waste liquid of nuclear medicine and the small particle waste can enter the waste liquid decay zone 306 through the filter screen 304 for decay cleaning, and the large particle waste can be intercepted in the radioactive sludge decay zone 305 for decay cleaning. Specifically, the size of the filtering holes on the filtering net 304 is set by the technical personnel according to the actual demand, the utility model discloses do not limit to this.
Radioactive sludge decay district 305 bottom is equipped with the mud discharge port, and waste liquid decay district 306 bottom is equipped with the waste liquid discharge port, and the mud discharge port is connected with municipal sewer pipe network through the first pump sending pipeline that is equipped with mud drain pump 308, and the waste liquid discharge port is connected with municipal sewer pipe network through the second pump sending pipeline that is provided with waste liquid drain pump 309, and first pump sending pipeline is equipped with blowdown control valve 310, and the second pump sending pipeline is equipped with drain control valve 311.
When the influent 307, blowdown 310 and drain 311 control valves are closed, the entire decay clean room 302 is sealed, thereby performing decay cleaning of the radioactive waste.
A radionuclide monitoring device 303 connected to the waste liquid discharge port through a waste liquid sampling pipe; the radionuclide monitoring device 303 may be a nuclide monitoring device commonly used in the art to monitor total alpha, total beta, or combinations thereof in the waste stream, 131 I radioactivity. Furthermore, a sampling suction pump can be arranged in the waste liquid sampling pipeline for sucking the monitoring sample to carry out nuclide monitoring. Furthermore, a sampling control valve can be arranged in the waste liquid sampling pipeline, and the sampling control valve is electrically connected with the automatic control device 1 and can be opened or closed under the control of the automatic control device 1.
The steam-water backwashing device 2 is connected with an exhaust drain pipe 312 arranged at the bottom of the radioactive sludge decay area 305 through a steam-water backwashing pipeline; the steam-water backwashing device 2 is used for steam-water backwashing, and gas or water is pumped into the exhaust drain pipe 312 through a steam-water backwashing pipeline, so that the sludge deposited in the radioactive sludge decay area 305 is subjected to steam-water backwashing, sludge hardening is prevented, and the sludge is conveniently discharged smoothly after decay cleaning is completed. Further, an exhaust and drainage control valve may be disposed at a position where the exhaust and drainage pipe 312 is connected to the steam-water backwashing pipe, and the exhaust and drainage control valve is electrically connected to the automatic control device 1 and is opened and closed under the control of the automatic control device 1 to ensure that the cleaning chamber 302 is sealed when the steam-water backwashing is not performed.
The automatic control device 1 is electrically connected with the steam-water backwashing device 2, the radionuclide monitoring device 303, the liquid level monitoring device 315, the liquid inlet control valve 307, the sludge draining pump 308, the waste liquid draining pump 309, the sewage discharge control valve 310 and the water draining control valve 311 respectively. The intelligent treatment monitoring device is used for controlling the whole nuclear medicine radioactive waste liquid intelligent treatment monitoring device to automatically operate. Specifically, automatic control device can be the PLC controller, perhaps other kinds of controllers, the utility model discloses do not limit this.
Further, in order to carry out the weeping monitoring to waste liquid collection processing case 3, can set up to waste liquid collection processing case 3 and examine the weeping layer, set up the liquid level monitoring device in examining the weeping layer and monitor the liquid level in examining the weeping layer, the liquid level monitoring device in examining the weeping layer is connected with automatic control device 1 electricity equally for liquid level data in examining the weeping layer sends for automatic control device 1, thereby realize the weeping monitoring. Furthermore, an alarm device can be arranged and electrically connected with the automatic control device 1, and when the liquid level in the leakage detection layer is monitored to reach a preset liquid level threshold value, the automatic control device 1 controls the alarm device to give an alarm.
The working process of the intelligent nuclear medicine radioactive waste liquid treatment and monitoring equipment provided in the embodiment is as follows: the automatic control device 1 controls the liquid inlet control valve 307 to be in an open state, controls the sludge drain pump 308, the waste liquid drain pump 309, the pollution discharge control valve 310 and the drain control valve 311 to be in a closed state, controls the nuclear medicine radioactive waste liquid to enter the radioactive sludge decay area 305 of the decay clean room 302 through the liquid inlet pipeline 301, controls the liquid and the small-particle waste in the nuclear medicine radioactive waste liquid to enter the waste liquid decay area 306 through the filter screen 304 for decay cleaning, and controls the large-particle waste to be intercepted in the radioactive sludge decay area 305 for decay cleaning. The liquid level monitoring device monitors the liquid level of the decay cleaning chamber 302 in real time and sends the liquid level monitoring data to the automatic control device 1, when the liquid level in the decay cleaning chamber 302 reaches a preset maximum liquid level (that is, the radioactive sludge decay region 305 and the waste liquid decay region 306 are full), the automatic control device 1 controls the liquid inlet control valve 307 to be closed, radioactive waste liquid is placed in the radioactive sludge decay region 305 and the waste liquid decay region 306 for decay cleaning, meanwhile, the radioactive nuclide monitoring device 303 monitors the radioactive activity of the waste liquid at the waste liquid discharge port and transmits the detection result to the automatic control device 1, the automatic control device 1 compares the detected radioactive activity with a preset activity threshold, if the radioactive activity is lower than the preset activity threshold, and the placing time of the radioactive waste liquid in the radioactive sludge decay region 305 and the waste liquid decay region 306 meets the time specified in nuclear medicine radiation protection and safety requirement "HJ 1188-2021 (implemented in 11 th 1 th day), the automatic control device controls the sludge discharge valve 309, the waste liquid discharge control valve 308, the blowdown control valve 310, the discharge valve, and the waste liquid discharge pump 311 for sludge water control.
Meanwhile, when radioactive waste liquid is placed in the decay cleaning chamber 302 for decay cleaning, the automatic control device starts the steam-water backwashing device 2 at intervals (specific time intervals can be set by technicians) to perform steam-water backwashing, so that sludge is prevented from hardening.
The nuclear medicine radioactive waste liquid intelligent treatment monitoring equipment provided by the embodiment cancels a septic tank in the traditional treatment device, only arranges a decay clean room, reduces the volume of the whole intelligent treatment monitoring device, and occupies less space; meanwhile, the decay cleaning chamber comprises a radioactive sludge decay region and a waste liquid decay region, the radioactive sludge decay region is used for decaying radioactive sludge, the waste liquid decay region is used for decaying waste liquid filtered from the radioactive waste liquid, so that the radioactive sludge and the waste liquid are decayed together for cleaning, after the radioactive sludge is discharged, the radioactive sludge does not need to decay and clean through a professional treatment plant, the radioactive sludge can be directly discharged to a municipal sewage pipe network, and the nuclear medicine radioactive waste liquid treatment procedure is simplified; in addition, the automatic control device, the radionuclide monitoring device, the liquid level monitoring device, the liquid inlet control valve, the sludge draining pump, the waste liquid draining pump, the sewage discharge control valve and the draining control valve are arranged, so that the intelligent treatment and standard discharge of the radioactive waste liquid in nuclear medicine are realized, the whole process does not need manual participation, a large amount of labor cost is saved, the safety, environmental protection, intelligence and convenience are realized, and the requirements on the aspects of automatic control and intelligent management in the radiation protection and safety requirement in nuclear medicine HJ1188-2021 are met; finally, the equipment is also provided with a steam-water backwashing device, so that steam-water backwashing can be carried out, hardening of radioactive sludge is avoided, and decayed radioactive sludge is conveniently and smoothly discharged.
In another embodiment of the present invention, as shown in fig. 3, the apparatus further comprises a display device 4, and the display device 4 is electrically connected to the automatic control device 1. The display device 4 may be an LED display screen. The display device 4 can be used for displaying the radioactivity of the radionuclide monitored by the radionuclide monitoring device 303, so that staff can know decay cleaning conditions at any time.
In still another embodiment of the present invention, as shown in fig. 3, the apparatus further comprises an aeration device 5, the aeration device 5 is connected with an exhaust drain 310 provided at the bottom of the radioactive sludge decay zone 307 through an aeration pipe, and the aeration device 5 is electrically connected with the automatic control device 1. The aeration device 5 is used for aerobic aeration and providing pressurized air to the exhaust and drainage pipe 310 so as to enter the decay clean room, thereby avoiding the radioactive sludge from generating anaerobic biological reaction and generating harmful gas through anaerobic fermentation. The aeration device 5 can be a common aeration device in the prior art, and the utility model does not limit the common aeration device.
In another embodiment of the present invention, the liquid inlet pipe 301 inside the radioactive sludge decay zone 305 is a spiral pipe, and a plurality of water outlets are disposed on the spiral pipe. Liquid inlet pipe 301 is the spiral pipeline, sets up at radioactive sludge decay area 305 top, and is equipped with a plurality of delivery ports on the pipeline to guarantee that radioactive waste liquid evenly enters into radioactive sludge decay area 305, and then guarantee that sludge deposition is even. Certainly, the feed liquor pipeline also can include a feed liquor house steward to and a plurality of feed liquor branch pipes that link to each other with the feed liquor house steward, the feed liquor branch pipe is evenly arranged at radioactive sludge decay district 305 top, thereby guarantees that radioactive waste liquid evenly enters into radioactive sludge decay district 305.
In another embodiment of the present invention, the radioactive sludge decay zone 305 bottom is sequentially provided with a fine gravel filler layer and a coarse gravel filler layer from bottom to top, the exhaust and drainage pipe 312 is disposed between the fine gravel filler layer and the coarse gravel filler layer, and the exhaust and drainage pipe 312 is a perforated pipe. The coarse gravel is arranged above the exhaust and drain pipe 312, so that the precipitated sludge is not directly deposited on the exhaust and drain pipe 312, and the steam-water back-flushing effect is not influenced by blocking the exhaust and drain pipe 312.
In another embodiment of the present invention, as shown in fig. 1, the exhaust drain pipe 312 includes an exhaust drain main pipe and a plurality of exhaust drain branch pipes connected to the exhaust drain main pipe, the exhaust drain branch pipes are uniformly arranged between the fine gravel filler layer and the coarse gravel filler layer, and each exhaust drain branch pipe is provided with a plurality of exhaust outlets, so that steam-water backwashing can be uniformly performed. Of course, the exhaust and drainage pipe 312 may be a spiral pipe, which is laid between the gravel packing layer and the gravel packing layer. The exhaust drain pipe 312 is a spiral pipe, and is provided with a plurality of exhaust outlets, so that steam and water backwashing can be uniformly performed, of course, the exhaust drain pipe 312 can also be in other shapes, and the utility model discloses do not limit to this.
In yet another embodiment of the present invention, an exhaust pipe 313 is provided on the top of the decay clean room 302, one end of the exhaust pipe 313 is provided with an air inlet, the air inlet is located in the radioactive sludge decay area 305, and the other end of the exhaust pipe sequentially passes through the decay clean room 302 and the waste liquid collecting and processing box 3, so as to discharge the waste gas inside the decay clean room 302 from the exhaust port.
As shown in fig. 2, the end of the exhaust pipe 313 with the air inlet is located in the radioactive sludge decay area 305, and the end with the air outlet passes through the waste liquid decay area 306 and out of the decay clean room 302 and the waste liquid collection and treatment tank 3. Further, an exhaust control valve may be disposed in the exhaust line 313 and electrically connected to the robot 1 to ensure sealing of the decay clean room 302 when exhaust is not required.
In still another embodiment of the present invention, as shown in fig. 3, the apparatus further includes an exhaust gas purification treatment device 6, the exhaust gas purification treatment device 6 is connected to an exhaust port of the exhaust pipe 313, and the exhaust gas purification treatment device 6 is electrically connected to the automatic control device 1. The exhaust gas purification treatment device 6 is used for performing purification treatment on the gas discharged from the exhaust pipeline 313 so as to achieve standard emission of the gas.
In another embodiment of the present invention, as shown in fig. 2, the top of the radioactive sludge decay area 305, the top of the waste liquid decay area 306 and the bottom thereof are all provided with a cleaning pipeline 314, a plurality of water spraying nozzles are provided on the cleaning pipeline 314, a water spraying control valve is further provided on the cleaning pipeline, and the water spraying control valve is electrically connected with the automatic control device 1. Specifically, the washing pipeline at top and the washing pipeline at bottom can include a washing house steward and a plurality of washing branch pipes of being connected with washing house steward respectively, all are equipped with a plurality of water jets on every washing branch pipe to reach better cleaning performance.
Automatic control device 1 can open the water spray control valve on washing pipeline 314 after discharging radioactive sludge and waste liquid to wash decay clean room 302, wherein, the radioactive waste liquid of waste liquid decay district 306 is mainly the supernatant after the sediment, and the particulate matter that contains is less, and the turbidity is lower. After decay and cleaning, little sludge is deposited to the lower part of the waste liquid decay area 306, and the waste liquid can be removed after being discharged and cleaned. The cleaning water source can be connected with pollution-free tap water, and the cleaned drainage can be directly discharged to a municipal sewage pipe network.
In another embodiment of the present invention, the waste liquid collecting and treating box 3 includes a plurality of waste liquid collecting and treating boxes for collecting and treating different or the same kinds of radioactive waste liquid.
According to the content of radioactive waste liquid 131 I nuclide, 99m TC nuclide, 18 The difference of F nuclide can divide radioactive waste liquid into long half-life radioactive waste liquid and short half-life radioactive waste liquid. Comprise only 131 The I nuclide is radioactive waste liquid with long half-life period and only contains 99m TC nuclide and 18 the F nuclide is radioactive waste liquid with short half-life period. Comprises 131 I nuclide and 99m TC nuclide, 131 I nuclide and 18 the F nuclide is radioactive waste liquid with long half-life period. Comprises 131 I nuclide, 99m TC and 18 the F nuclide is radioactive waste liquid with long half-life period.
Decay cleaning times required for long half-life radioactive waste liquids and short half-life radioactive waste liquids differ. Therefore, when radioactive waste liquid is collected, different pipe network systems can be utilized to collect the long half-life radioactive waste liquid and the short half-life radioactive waste liquid in the nuclear medicine department room into different waste liquid collecting and treating boxes respectively for decay and cleaning treatment.
In addition, when in actual use, at least 2 waste liquid collecting and processing boxes can be arranged to collect the long half-life radioactive waste liquid or the short half-life radioactive waste liquid, so that the intermittent treatment of the radioactive waste liquid of the same type can be realized. That is, earlier by automatic control device control wherein 1 waste liquid collection handles case feed liquor, full when handling the case, then it is clean to begin the decay, controls next waste liquid collection again and handles case feed liquor, and it is clean that at least 2 waste liquid collection handles the case and carries out the decay in turn, satisfies the processing demand of radioactive liquid waste.
The present invention has been further described above with reference to specific embodiments, but it should be understood that the specific description herein should not be read as limiting the spirit and scope of the invention. Various modifications of the above-described embodiments, which would occur to persons skilled in the art upon reading this description, are within the scope of the invention.
Claims (10)
1. The utility model provides a monitoring facilities is handled to nuclear medicine radioactive waste liquid intelligence which characterized in that, equipment includes automatic control device, soda back flush device and waste liquid collection processing case, wherein:
the waste liquid collecting and treating box is internally provided with a liquid inlet pipeline, a decay clean room and a radionuclide monitoring device, the decay clean room is divided into a radioactive sludge decay area and a waste liquid decay area by a vertically arranged filter screen, and the decay clean room is internally provided with a liquid level monitoring device;
one end of the liquid inlet pipeline penetrates out of the waste liquid collecting and treating box to be connected with the waste liquid collecting pipeline, the other end of the liquid inlet pipeline penetrates into a radioactive sludge decay area of the decay clean room, and a liquid inlet control valve is arranged on the liquid inlet pipeline;
the radioactive sludge decay area is provided with a sludge discharge port at the bottom, the waste liquid decay area is provided with a waste liquid discharge port at the bottom, the sludge discharge port is connected with a municipal sewage pipe network through a first pumping pipeline provided with a sludge drainage pump, the waste liquid discharge port is connected with the municipal sewage pipe network through a second pumping pipeline provided with a waste liquid drainage pump, the first pumping pipeline is provided with a drainage control valve, and the second pumping pipeline is provided with a drainage control valve;
the radionuclide monitoring device is connected with the waste liquid discharge port through a waste liquid sampling pipeline;
the steam-water backwashing device is connected with an exhaust and drainage pipe arranged at the bottom of the radioactive sludge decay region through a steam-water backwashing pipeline;
and the automatic control device is respectively and electrically connected with the steam-water backwashing device, the radionuclide monitoring device, the liquid level monitoring device, the liquid inlet control valve, the sludge draining pump, the waste liquid draining pump, the sewage draining control valve and the water draining control valve.
2. The intelligent treatment and monitoring equipment for radioactive waste liquid in nuclear medicine according to claim 1, further comprising a display device, wherein said display device is electrically connected to said automatic control device.
3. The intelligent treatment and monitoring equipment for radioactive waste liquid in nuclear medicine according to claim 1, further comprising an aeration device, wherein the aeration device is connected with an exhaust and drainage pipe arranged at the bottom of the radioactive sludge decay zone through an aeration pipeline, and the aeration device is electrically connected with the automatic control device.
4. The intelligent nuclear medicine radioactive waste liquid treatment and monitoring device according to claim 1, wherein the liquid inlet pipeline inside the radioactive sludge decay zone is a spiral pipeline, and a plurality of water outlets are formed in the spiral pipeline.
5. The intelligent radioactive waste liquid nuclear medicine treatment and monitoring device according to claim 1, wherein the bottom of the radioactive sludge decay zone is sequentially provided with a fine gravel filler layer and a coarse gravel filler layer from bottom to top, the exhaust and drainage pipe is arranged between the fine gravel filler layer and the coarse gravel filler layer, and the exhaust and drainage pipe is a perforated pipe.
6. The intelligent processing and monitoring equipment for radioactive waste liquid in nuclear medicine according to claim 5, wherein the exhaust drain pipe comprises an exhaust drain main pipe and a plurality of exhaust drain branch pipes connected with the exhaust drain main pipe respectively, and the plurality of exhaust drain branch pipes are uniformly arranged between the fine gravel filler layer and the coarse gravel filler layer.
7. The nuclear medicine radioactive waste liquid intelligent processing and monitoring equipment is characterized in that an exhaust pipeline is arranged at the top of the decay clean room, an air inlet is formed in one end of the exhaust pipeline, the air inlet is located in the radioactive sludge decay area, and the other end of the exhaust pipeline penetrates out of the decay clean room and the waste liquid collecting and processing box in sequence so that waste gas in the decay clean room can be discharged from an exhaust port.
8. The apparatus according to claim 7, further comprising an exhaust purification treatment device, wherein the exhaust purification treatment device is connected to the exhaust outlet of the exhaust pipeline, and the exhaust purification treatment device is electrically connected to the automatic control device.
9. The intelligent nuclear medicine radioactive waste liquid treatment and monitoring device according to claim 1, wherein cleaning pipelines are arranged at the top of the radioactive sludge decay region and at the top and the bottom of the waste liquid decay region, a plurality of water spray nozzles are arranged on the cleaning pipelines, and a water spray control valve is further arranged on the cleaning pipelines and electrically connected with the automatic control device.
10. The device for intelligently processing and monitoring the radioactive waste liquid in nuclear medicine according to claim 1, wherein the waste liquid collecting and processing box comprises a plurality of waste liquid collecting and processing boxes for respectively collecting and processing different or same kinds of radioactive waste liquid.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117012429A (en) * | 2023-08-16 | 2023-11-07 | 西南科技大学 | Integrated nuclear medicine radioactive wastewater rapid treatment system and application method |
| CN117059292A (en) * | 2023-08-16 | 2023-11-14 | 西南科技大学 | Pretreatment system for solid-liquid separation of nuclear medical radioactive wastewater and application method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117012429A (en) * | 2023-08-16 | 2023-11-07 | 西南科技大学 | Integrated nuclear medicine radioactive wastewater rapid treatment system and application method |
| CN117059292A (en) * | 2023-08-16 | 2023-11-14 | 西南科技大学 | Pretreatment system for solid-liquid separation of nuclear medical radioactive wastewater and application method |
| CN117012429B (en) * | 2023-08-16 | 2024-03-22 | 西南科技大学 | Integrated nuclear medicine radioactive wastewater rapid treatment system and application method |
| CN117059292B (en) * | 2023-08-16 | 2024-03-29 | 西南科技大学 | Pretreatment system for solid-liquid separation of nuclear medical radioactive wastewater and application method |
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