CN217121132U - Nuclide transmission pipeline cleaning device and nuclide transmission pipeline cleaning system - Google Patents
Nuclide transmission pipeline cleaning device and nuclide transmission pipeline cleaning system Download PDFInfo
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- CN217121132U CN217121132U CN202220032870.7U CN202220032870U CN217121132U CN 217121132 U CN217121132 U CN 217121132U CN 202220032870 U CN202220032870 U CN 202220032870U CN 217121132 U CN217121132 U CN 217121132U
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Abstract
The utility model discloses a nuclide transmission pipeline cleaning device and a nuclide transmission pipeline cleaning system, which comprise a first valve and a driving unit; the first valve is provided with three ports which are respectively communicated with the outlet of the target cavity, the inlet of the transmission pipeline and the outlet of the driving unit, and can switch and control the communication relationship between the target cavity and the transmission pipeline and the communication relationship between the driving unit and the transmission pipeline; the inlet of the driving unit is communicated with the cleaning agent and is used for driving the cleaning agent to directly enter the transmission pipeline through the first valve. By arranging the first valve, the two states of communication between the driving unit and the transmission pipeline and communication between the liquid target chamber and the transmission pipeline are switched by utilizing the first valve, when the transmission pipeline is cleaned, the transmission pipeline can be cleaned without the liquid target chamber, other cleaning agents except oxygen-18 water, such as oxygen-16 water, can be selected to clean the transmission pipeline, and the effect of reducing the cleaning cost of the transmission pipeline can be achieved by utilizing the oxygen-16 water as the cleaning agent.
Description
Technical Field
The utility model belongs to the technical field of the washing of radioactive medical instrument, concretely relates to nuclide transmission pipeline belt cleaning device and system.
Background
The cyclotron is a device which ionizes gas (hydrogen or deuterium) into charged particles through an ion source, uses a magnetic field and an electric field to enable the charged particles to perform cyclotron motion together, repeatedly accelerates the charged particles through a high-frequency electric field in the motion and achieves required energy, then strips the charged particles through an extraction system, changes the charged particles into protons and deuterons, and finally irradiates substances in a target system.
Target systems are divided into liquid targets, gas targets and solid targets. When the liquid target is a fluorine target, nuclide in a fluorine ion form is generated after the fluorine target is irradiated, then the nuclide in the fluorine target cavity is transferred to a transmission pipeline communicated with the outlet of the fluorine target cavity by means of inert gas generated by a target transferring gas source, so that the nuclide is transferred by means of the transmission pipeline, and the inert gas generated by the target transferring gas source can avoid polluting the fluorine target cavity and the transmission pipeline and avoid polluting the fluorine target cavity in the cyclotron. However, since the fluorine ions have a certain viscosity, if the transport pipeline for transferring nuclides in the cyclotron cannot be cleaned in time after use, the nuclides remaining in the inner wall of the transport pipeline can form adhesion accumulation, and even block the transport pipeline, and finally the cyclotron cannot transfer the nuclides in the form of fluorine ions, so that the transport pipeline needs to be cleaned in time.
At present, the transfer pipe is cleaned mainly by means of oxygen-18 water. For example, in the case of a cyclotron of the IBAC-19 type, since the cyclotron generates fluorine ions by injecting oxygen-18 water into a fluorine target chamber, when cleaning a transfer pipe, oxygen-18 water is injected into the fluorine target chamber, so that the oxygen-18 water flows into the transfer pipe through the fluorine target chamber, thereby cleaning the transfer pipe. However, the cost of cleaning the transfer line is very high due to the high cost of oxygen-18 water (about 300-.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention discloses a nuclide delivery pipeline cleaning device and system to overcome or at least partially solve the above problems.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a nuclide delivery pipeline cleaning device comprises a first valve and a driving unit; the first valve is provided with three ports which are respectively communicated with an outlet of a target cavity, an inlet of a transmission pipeline and an outlet of the driving unit, and can switch and control the communication relationship between the target cavity and the transmission pipeline and the communication relationship between the driving unit and the transmission pipeline; and the inlet of the driving unit is communicated with the cleaning agent and is used for driving the cleaning agent to enter the transmission pipeline through the first valve.
Optionally, the drive unit includes a drive pump and a quantitative unit, the drive pump is used for driving the power of cleaning agent, the quantitative unit is located the drive pump with between the first valve, and the export of drive pump with the import intercommunication of quantitative unit, the export of quantitative unit with first valve intercommunication is used for depositing the cleaning agent of drive pump output and with the cleaning agent ration transport to the transmission pipeline.
Optionally, the dosing unit comprises a dosing container, a first pipeline and a second pipeline; one end of the first pipeline is communicated with an outlet of the driving pump, and the other end of the first pipeline is communicated with an inlet of the quantitative container and used for conveying cleaning agent to the quantitative container; one end of the second pipeline is communicated with an outlet of the quantitative container, and the other end of the second pipeline is communicated with the first valve and used for conveying cleaning agents to the conveying pipeline.
Optionally, the quantitative unit further includes a quantitative driver and a quantitative pipeline, an inlet of the quantitative pipeline is communicated with the quantitative driver, and an outlet of the quantitative pipeline is communicated with the quantitative container through the first pipeline, and is used for conveying the cleaning agent in the quantitative container to the conveying pipeline.
Optionally, the dosing unit further includes a second valve, and the second valve has three ports, and is respectively communicated with the outlet of the driving pump, the outlet of the dosing pipeline and the first pipeline, so as to be able to switch and control the communication relationship between the first pipeline and the driving pump and the communication relationship between the first pipeline and the dosing driver.
Optionally, a target transferring gas source is selected as the quantitative driver, and a control valve is arranged at an outlet of the target transferring gas source and used for switching and controlling a communication relationship between the target transferring gas source and the target cavity and a communication relationship between the target transferring gas source and the quantitative pipeline.
Optionally, the dosing unit further comprises a third valve and a third pipeline; one end of the third pipeline is communicated with the inner cavity of the quantitative container, and the other end of the third pipeline is selectively communicated with the outside atmosphere through the third valve.
Optionally, one end of the third pipeline, which is communicated with the inner cavity of the quantitative container, is located at a position higher than the liquid level of the cleaning agent.
Optionally, one end of the second pipeline located inside the quantitative container is located at the bottom of the quantitative container.
A nuclide delivery pipeline cleaning system adopts any one of the nuclide delivery pipeline cleaning device and the controller, wherein the controller is electrically connected with the nuclide delivery pipeline cleaning device and is used for controlling the nuclide delivery pipeline cleaning device to deliver cleaning agents to the delivery pipeline.
The utility model has the advantages and beneficial effects that:
1. in the utility model discloses an among the nuclide transmission pipeline cleaning device, through being equipped with first valve, utilize first valve to switch between these two states of intercommunication between drive unit and the transmission pipeline, the intercommunication between liquid target chamber and the transmission pipeline, when wasing the transmission pipeline, need not to wash the transmission pipeline through liquid target chamber, can select other cleaners such as oxygen-16 water except that oxygen-18 water to wash the transmission pipeline, utilize oxygen-16 water to reach the effect that reduces the washing cost of transmission pipeline as the cleaner.
2. The utility model discloses an among the nuclide transmission pipeline cleaning system, through setting up this nuclide transmission pipeline belt cleaning device on the position of keeping away from cyclotron to through setting up the controller, control this nuclide transmission pipeline belt cleaning device's operating condition. The controller is electrically connected with the control valve, the first valve and the second valve respectively, and the two working states of supplying oxygen-16 water to the quantitative container and cleaning the transmission pipeline are switched. And the controller is used for correspondingly controlling the opening and closing of the driving unit and the clamping and loosening of the third pipeline by the third valve according to the two working states, so that the transmission pipeline can be cleaned by workers in an environment without rays, the working state of the nuclide transmission pipeline cleaning device is controlled, and the effect of preventing the workers from being influenced by the rays to the health is achieved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a device for cleaning a nuclear transport pipeline according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a cleaning system for a nuclear transport pipeline according to an embodiment of the present invention.
Detailed Description
In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to perform clear and complete description of the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Example one
The embodiment discloses a nuclide delivery pipeline cleaning device, which can be applied to a nuclide generation device which is a cyclotron, and a target cavity of the cyclotron is a fluorine target.
As shown in connection with fig. 1, the nuclide delivery pipeline cleaning apparatus includes a first valve 3 and a driving unit. The first valve 3 is a three-way valve, one end of the first valve 3 is communicated with the transmission pipeline 1, the other end of the first valve 3 is communicated with the fluorine target chamber 2, and the other end of the first valve is communicated with the driving unit for switching two communication states between the driving unit and the transmission pipeline 1 and between the fluorine target chamber 2 and the transmission pipeline 1. And the driving unit is communicated with a cleaning medium source containing oxygen-16 water and is used for directly conveying the oxygen-16 water into the conveying pipeline 1 through the first valve 3 so as to directly clean the conveying pipeline 1. The transmission pipeline 1 is used for transmitting nuclide generated by a fluorine target chamber 2 in the cyclotron.
When the first valve 3 connects the driving unit with the transmission pipeline 1, the oxygen-16 water at the cleaning medium source is extracted by the driving unit, and the extracted oxygen-16 water directly enters the transmission pipeline 1 through the first valve 3, so that the transmission pipeline 1 is cleaned.
At the moment, the fluorine target cavity is selectively communicated with the transmission pipeline 1 through the first valve 3 in the nuclide transmission pipeline cleaning device, and fluorine ions in the transmission pipeline 1 are directly cleaned by replacing oxygen-18 water with oxygen-16 water, so that the transmission pipeline 1 can be cleaned, the normal work of the cyclotron is ensured, the cost of cleaning the transmission pipeline 1 is reduced by replacing oxygen-18 water with the oxygen-16 water with lower use cost, meanwhile, the oxygen-16 water is prevented from passing through the fluorine target cavity 2, and the pollution of the oxygen-16 water to the fluorine target cavity 2 is avoided.
Referring to fig. 1, the driving unit comprises a driving pump 4 and a quantitative unit 5, the quantitative unit 5 is located between the driving pump 4 and the first valve 3, and the quantitative unit 5 cleans the transmission pipeline 1 with a certain amount of oxygen-16 water, so that the transmission pipeline 1 is cleaned with a sufficient amount of oxygen-16 water to ensure that the nuclide in the form of fluorine ions remained in the transmission pipeline 1 can be thoroughly cleaned. Wherein, the inlet of the driving pump 4 is communicated with a cleaning medium source containing oxygen-16 water, the outlet of the driving pump 4 is communicated with the inlet of the quantitative unit 5, the outlet of the quantitative unit 5 is communicated with the first valve 3, the driving pump 4 drives the oxygen-16 water to enter the quantitative unit 5, and then the quantitative unit 5 drives the quantitative oxygen-16 water to enter the transmission pipeline 1 through the first valve 3. In this embodiment, the peristaltic pump, such as a T-S109& WX10-14 model peristaltic pump manufactured by Baoding Lange constant flow pump, Inc., is used as the driving pump, and the peristaltic pump can improve the accuracy of oxygen-16 water delivery. In other embodiments, a piston-type syringe may be used instead of a peristaltic pump to deliver the oxygen-16 water from the water source.
Preferably, the first valve 3 is a three-way solenoid valve, for example, a three-way solenoid valve manufactured by beiong fluid systems ltd and having a model number of V25T24-62-5, the fluorine target chamber 2 is communicated with the NO end of the first valve 3, the driving pump 4 is communicated with the NC end of the first valve 3, the transmission pipeline 1 is communicated with the COM end of the first valve 3, the transmission pipeline 1 is used as a common end of the fluorine target chamber 2 and the driving pump 4, and the fluorine target chamber 2 and the driving pump 4 are respectively connected with the transmission pipeline 1 through the first valve 3. When the first valve 3 switches the communication state between the NC end and the first valve 3 to the communication state between the NO end and the fluorine target chamber 2, that is, the fluorine target chamber 2 is communicated with the transmission pipeline 1; at this time, the nuclide in the fluorine target chamber 2 is transferred into the transfer pipeline 1, and the nuclide is transferred to a required position through the transfer pipeline 1. When the first valve 3 switches the communication state of the NO end and the fluorine target chamber 2 to the communication state of the NC end and the driving pump 4, in this case, the driving pump 4 is communicated with the transmission pipeline 1; at this time, the driving pump 4 can deliver the oxygen-16 water into the transfer pipe 1.
Further, as shown in fig. 1, the dosing unit 5 includes a dosing container 51, a first pipe 52 and a second pipe 53; one end of the first pipeline 52 is communicated with the outlet of the driving pump 4, the other end of the first pipeline 52 is communicated with the inlet of the quantitative container 51, and the driving pump 4 pumps oxygen-16 water and conveys the water into the quantitative container 51 through the first pipeline 52; and the first pipe 52 is located in the dosing container 51 at a position higher than the level of the oxygen-16 water, avoiding that the first pipe 52 is located in the oxygen-16 water in the dosing container 51, which would cause a back flow of the oxygen-16 water. And one end of the second pipeline 53 is communicated with the outlet of the quantitative container 51, and the other end of the second pipeline 53 is communicated with the NC end of the first valve 3, so that the oxygen-16 water in the quantitative container 51 is conveyed into the conveying pipeline 1. When the NC end of the first valve 3 is communicated with the transfer pipeline 1, that is, the second pipeline 53 is communicated with the transfer pipeline 1, in this case, oxygen-16 water is introduced into the transfer pipeline 1 through the second pipeline 53 to clean the transfer pipeline 1; and the second pipeline 53 is positioned at the bottom end of the quantitative container 51, so that all the oxygen-16 water in the quantitative container 51 can enter the transmission pipeline 1 through the second pipeline 53, and the oxygen-16 water in the quantitative container 51 is prevented from remaining at the bottom of the quantitative container 51. Preferably, the container is a 50ml penicillin bottle for containing oxygen-16 water.
In addition, as shown in fig. 1, the dosing unit 5 further includes a dosing actuator and a dosing line 56, wherein an inlet of the dosing line 56 is in communication with the dosing actuator, and an outlet of the dosing line 56 is in communication with the first line 52, thereby establishing communication between the dosing actuator and the dosing container 51. Specifically, the oxygen-16 water in the quantitative container 51 is driven to be transported into the transportation pipeline 1 by the quantitative driver. In the embodiment, the target gas source 6 is used as a quantitative driver to reduce the cost of the parts and components of the equipment. The outlet of the target gas source 6 is provided with a control valve, so that the communication relation between the target gas source 6 and the fluorine target chamber 2 and the communication relation between the target gas source 6 and the quantitative container 51 can be switched and controlled, in other embodiments, a delivery pump can be used as a quantitative driver, and the delivery pump can be used as a driving source of oxygen-16 water in the quantitative container.
Specifically, when the control valve is switched to the target transferring gas source 6 and the fluorine target chamber 2 are in a communicated state, helium gas generated by the target transferring gas source 6 can convey nuclides generated by the fluorine target chamber 2 to the transmission pipeline 1, and the nuclides are output and used through the transmission pipeline 1. When the control valve is switched to a state that the transfer target gas source 6 is communicated with the quantitative container 51, helium generated by the transfer target gas source 6 enters the first pipeline 52 through the quantitative pipeline 56 and then enters the quantitative container 51, oxygen-16 water in the quantitative container 51 can be pressed into the transmission pipeline 1 through the second pipeline 53 by increasing the helium in the quantitative container 51, so that the transmission pipeline 1 is cleaned by the oxygen-16 water, the use amount of the oxygen-16 water is controlled by controlling the transmission time, and further the use amount of the oxygen-16 water is ensured to be capable of thoroughly cleaning nuclides in the form of fluoride ions in the transmission pipeline 1.
In other embodiments, the driving element may be a syringe, which is connected to the container via a first conduit to power the oxygen-16 water in the container to be transported into the transport conduit.
In addition, in other embodiments, the target-transferring gas source may also generate other inert gases, such as neon, argon, etc., to deliver the nuclides in the fluorine target chamber and the oxygen-16 water in the quantification vessel.
As shown in connection with fig. 1, the nuclide delivery pipeline cleaning device further comprises a second valve 7; the fixed-amount line 56, the drive pump 4, and the first line 52 are communicated with each other through the second valve 7, and the second valve 7 controls switching of the communication state between the fixed-amount line 56 and the fixed-amount container 51 and between the drive pump 4 and the fixed-amount container 51. Preferably, the second valve is a three-way solenoid valve manufactured by beiong fluid system limited and having a model number V25T24-62-5, the driving pump 4 is communicated with the NO end of the second valve 7, the quantitative pipeline 56 is communicated with the NC end of the second valve 7, and the first pipeline 52 is communicated with the COM end of the second valve 7, so that the first pipeline 52 is used as a common end for the transmission of the driving pump 4 and the quantitative pipeline 56, the switching of the communication state between the target gas source 6 and the first pipeline 52 and between the driving pump 4 and the first pipeline 52 is switched by the second valve 7, and further the oxygen-16 water is input into the quantitative container 51 by the driving pump 4 and is output into the transmission pipeline 1 by the quantitative container 51.
Furthermore, as shown in connection with fig. 1, the dosing unit further comprises a third valve 54 and a third line 55; the third line 55 communicates with the dosing container 51; the third valve 54 is connected to the third line 55, and the opening and closing of the third valve 54 controls the opening and closing of the third line 55 to the outside environment, and further controls the connection and disconnection of the fixed-amount container 51 to the outside environment through the third line 55. The clamping and unclamping of the third valve 54 on the third line 55 is adjusted according to the conditions of the replenishment of the oxygen-16 water in the dosing vessel 51 and the cleaning of the transfer line 1. Wherein the third pipe 55 is positioned in the quantitative vessel 51 at a position higher than the level of the oxygen-16 water, and prevents the reverse flow of the oxygen-16 water while adjusting the air pressure in the quantitative vessel 51. Preferably, the third valve is a P20NO24-01# pinch valve manufactured by Bein fluid systems, Inc.
When the quantitative container 51 needs to be supplemented with the oxygen-16 water, the water supplementing button is pressed, and the water supplementing button controls and drives the pump 4, the second valve 7 and the third valve 54 to be in a state of supplementing the oxygen-16 water into the quantitative container 51. Specifically, the second valve 7 is switched to a state in which the NO port communicates with the drive pump 4, and the third valve 54 is in a state in which the third line 55 is released. At this time, the quantitative container 51 is communicated with the external environment through the third pipe 55, and the gas pressure inside the quantitative container 51 is the same as the external gas pressure. Wherein, the oxygen-16 water is driven by the driving pump 4 to enter the first pipeline 52 through the second valve 7 and further conveyed to the quantitative container 51, and on the premise that the gas pressure in the quantitative container 51 is the same as the external gas pressure, the oxygen-16 water in the quantitative container 51 cannot flow out through the second pipeline 53, thereby completing the oxygen-16 water supplement for the quantitative container 51.
When the transfer pipe 1 needs to be cleaned, the cleaning button is pressed, and the cleaning button controls the first valve 3, the second valve 7 and the third valve 54 to be in a state of introducing the oxygen-16 water in the quantitative container 51 into the transfer pipe 1. Specifically, at this time, the NC end of the first valve 3 is communicated with the second pipeline 53; the NC end of the second valve 7 is in communication with the target-transferring gas source 6, thereby allowing the target-transferring gas source 6 to communicate with the quantitative container 51 through the first line 52. The third valve 54 clamps the third pipeline 55, so that the quantitative container 51 is cut off from being communicated with the outside, and the control valve is switched to a state that the target transferring gas source 6 is communicated with the quantitative container 51; at the moment, the quantitative container 51 is filled with the oxygen-16 water, the second pipeline 53 is positioned in the oxygen-16 water, and the quantitative container 51 is communicated to the target transferring gas source 6 through the first pipeline 52 and the quantitative pipeline 56, so that the quantitative container 51 is in a closed state; in this case, helium gas generated from the target gas source 6 is introduced into the quantitative container 51 through the second valve 7 and the first pipe 52, so that the gas pressure inside the closed quantitative container 51 is higher than the external gas pressure, and since the second pipe 53 is located at the bottom end of the quantitative container 51, oxygen-16 water in the quantitative container 51 can be pressed into the transfer pipe 1 through the second pipe 53 by the increase of the helium gas, thereby cleaning the transfer pipe 1. In other embodiments, the first valve and the second valve can also be pneumatic valves, and the pneumatic valves are used for controlling the switching of two communication states of the quantitative unit, the fluorine target cavity and the transmission pipeline respectively and the switching of two communication states of the target transmission air source and the driving pump and the first pipeline respectively.
Referring to fig. 1, the nuclide delivery pipeline cleaning system comprises a nuclide delivery pipeline cleaning device and a controller 8, wherein the controller 8 is electrically connected with a control valve, a first valve 3 and a second valve 7 respectively, and the controller 8 is used for controlling the switching between two states of the communication between the NO end and the COM end and the communication between the NC end and the COM end in the first valve 3 and the second valve 7, and further controlling the state time of supplying oxygen-16 water to the quantitative container 51 and the time of cleaning the delivery pipeline state, so that the amount of the oxygen-16 water supplied to the quantitative container 51 and the amount of the oxygen-16 water used for cleaning the delivery pipeline 1 are controlled. The controller 8 correspondingly drives the control valve to switch and control the communication relationship between the target transferring gas source 6 and the fluorine target cavity 2 and the communication relationship between the target transferring gas source 6 and the quantitative container 51 according to the two working states of the nuclide delivery pipeline cleaning device. In addition, the controller 8 is electrically connected to the third valve 54, and the controller 8 controls the clamping state and the releasing state of the third valve 54 to the third pipeline 55 according to the two working states of the oxygen-16 replenishing water and the cleaning transmission pipeline 1 in the quantitative container 51; and the controller 8 is also electrically connected with the driving pump 4 and controls the on and off of the driving pump 4, thereby controlling the on and off of the supply of the oxygen-16 water to the quantitative container 51.
In other embodiments, the nuclide delivery pipeline cleaning device can also be applied to liquid target cyclotrons of other nuclides.
With reference to fig. 1, the cleaning device for nuclide transport pipelines of this embodiment is used to clean the transport pipelines as follows:
the nuclide conveying pipeline cleaning device is installed on a cyclotron, specifically, one end of a fluorine target cavity 2 of the cyclotron, which flows out nuclides, is communicated with an NO end of a first valve 3, a COM end of the first valve 3 is communicated with a conveying pipeline 1, the other end of the fluorine target cavity 2 is communicated with a target conveying gas source 6 of the cyclotron through a three-way joint 61, and the three-way joint 61 is further communicated with an NC end of a second valve, so that the installation of the cyclotron and the nuclide conveying pipeline 1 is completed.
When the cyclotron finishes the generation of nuclide, the nuclide in the cyclotron is transferred to a required position through helium generated by a target gas transferring source 6, and then the transmission pipeline 1 is cleaned:
firstly, the first valve 3 is in a state that the NO end of the first valve is communicated with the fluorine target cavity 2, the second valve 7 is in a state that the NO end of the second valve is communicated with the driving pump 4, and the control valve is switched to a state that the target gas source 6 is communicated with the fluorine target cavity 2, so that helium generated by the target gas source 6 only passes through the fluorine target cavity 2, and nuclides in the fluorine target cavity 2 are transferred to a required position through the transmission pipeline 1.
Then, after the operator turns on the water replenishing button of the nuclide transportation pipeline cleaning device, the operating state of the nuclide transportation pipeline cleaning device is adjusted to drive the oxygen-16 water to be transported into the quantitative container 51 by the drive pump 4. At this time, the second valve 7 is in a state where its NO end is in communication with the drive pump 4, and the third valve 54 releases the third line 55, so that the fixed-amount container 51 is in a state where it is in communication with the outside through the third line 55 and between the drive pump 4 and the fixed-amount container 51. Then the driving pump 4 starts to work, the oxygen-16 water is driven by the driving pump 4 to be conveyed into the quantitative container 51 through the first pipeline 52, and after the conveying time reaches the time set by the controller 8, the driving pump 4 stops working, and the water replenishing work is finished.
Then, after the operator turns on the washing button of the nuclide delivery pipeline washing device, the operating state of the nuclide delivery pipeline washing device is adjusted to transfer the oxygen-16 water in the quantitative container 51 into the delivery pipeline 1 by driving the oxygen-16 water to be transferred into the quantitative container 51 by the driving pump 4. At this time, the control valve is switched to a state in which the target gas transfer source 6 is in communication with the quantitative container 51, the first valve 3 is switched to a state in which its NO port is in communication with the fluorine target chamber 2 and its NC port is in communication with the quantitative container 51, the second valve 7 is switched to a state in which its NO port is in communication with the drive pump and its NC port is in communication with the target gas transfer source 6, and the third valve 54 clamps the third line 55. At this time, the first valve 3 and the second valve 7 respectively control the quantitative container 51 and the transmission pipeline 1, and the target gas transmission source 6 and the quantitative container 51 to be in a communicated state; so that the target gas transferring source 6 transfers helium gas into the quantitative container 51 through the first pipe 52, and since the first pipe 52 is located at a position higher than the level of the oxygen-16 water in the quantitative container 51 and is not in contact with the oxygen-16 water, the helium gas is transferred into the quantitative container 51 through the first pipe 52, the oxygen-16 water is transferred into the transfer pipe 1 through the second pipe 53 under the pressure of the gas in the quantitative container 51, and the transfer pipe 1 is cleaned by the oxygen-16 water.
And when the conveying time reaches the time set by the controller 8, the target conveying gas source 6 stops working, and the cleaning work of the oxygen-16 water quantitative conveying pipeline 1 is completed. The nuclide conveying pipeline cleaning device is used for cleaning the conveying pipeline, the replacement period of the conveying pipeline can be prolonged, the replacement period of the conveying pipeline is prolonged from 3 months to 4 months, the replacement times of the conveying pipeline are reduced, the nuclide residues in the conveying pipeline are reduced through the nuclide conveying pipeline cleaning device, and the cyclotron can be normally and stably produced.
Example two
Referring to fig. 2, this embodiment discloses another nuclide delivery line cleaning apparatus, and for convenience of description, the delivery line 1, the fluorine target chamber 2, the first valve 3, the driving unit, and the second valve 7 are referred to as a delivery line cleaning branch 9. Compared with the first embodiment, the nuclide transmission pipeline cleaning device in the embodiment can perform transmission pipeline cleaning operation aiming at the cyclotrons of two liquid targets, and comprises two transmission pipeline cleaning branches; the target transferring gas source 6 is communicated with the two conveying pipeline cleaning branches, the two conveying pipelines 1 can be cleaned through one target transferring gas source 6, and in addition, the water replenishing time and the cleaning time on each conveying pipeline cleaning branch are controlled through the controller 8.
In other embodiments, the number of transfer line cleaning shunts in the nuclide transfer line cleaning apparatus can also be adjusted depending on the number of liquid targets in the cyclotron.
In view of the above, it is only the specific embodiments of the present invention that other modifications and variations can be made by those skilled in the art based on the above-described embodiments in light of the above teachings. It should be understood by those skilled in the art that the detailed description above is only for the purpose of better explaining the present invention, and the scope of protection of the present invention should be subject to the scope of protection of the claims.
Claims (10)
1. A nuclide delivery pipeline cleaning device is characterized in that: comprises a first valve and a driving unit; the first valve is provided with three ports which are respectively communicated with an outlet of a target cavity, an inlet of a transmission pipeline and an outlet of the driving unit, and can switch and control the communication relationship between the target cavity and the transmission pipeline and the communication relationship between the driving unit and the transmission pipeline; and the inlet of the driving unit is communicated with the cleaning agent and is used for driving the cleaning agent to enter the transmission pipeline through the first valve.
2. The nuclide delivery pipeline cleaning device as in claim 1, wherein: the drive unit includes driving pump and ration unit, the driving pump is used for as the power of drive cleaner, the ration unit is located the driving pump with between the first valve, and the export of driving pump with the import intercommunication of ration unit, the export of ration unit with first valve intercommunication is used for depositing the cleaner of driving pump output and with the cleaner ration carry to transmission pipeline.
3. The nuclide delivery pipeline cleaning apparatus as in claim 2, wherein: the quantitative unit comprises a quantitative container, a first pipeline and a second pipeline; one end of the first pipeline is communicated with an outlet of the driving pump, and the other end of the first pipeline is communicated with an inlet of the quantitative container and used for conveying cleaning agent to the quantitative container; one end of the second pipeline is communicated with an outlet of the quantitative container, and the other end of the second pipeline is communicated with the first valve and used for conveying cleaning agents to the conveying pipeline.
4. The nuclide delivery pipeline cleaning apparatus as in claim 3, wherein: the quantitative unit further comprises a quantitative driver and a quantitative pipeline, an inlet of the quantitative pipeline is communicated with the quantitative driver, and an outlet of the quantitative pipeline is communicated with the quantitative container through the first pipeline and used for conveying the cleaning agent in the quantitative container to the conveying pipeline.
5. The nuclide delivery pipeline cleaning device as in claim 4, wherein: the quantitative unit further comprises a second valve, wherein the second valve is provided with three ports which are communicated with the outlet of the driving pump, the outlet of the quantitative pipeline and the first pipeline respectively, and can switch and control the communication relation between the first pipeline and the driving pump and the communication relation between the first pipeline and the quantitative driver.
6. The nuclide delivery pipeline cleaning apparatus as in claim 4, wherein: and a target transferring gas source is selected as the quantitative driver, and a control valve is arranged at an outlet of the target transferring gas source and used for switching and controlling the communication relationship between the target transferring gas source and the target cavity and the communication relationship between the target transferring gas source and the quantitative pipeline.
7. The nuclide delivery pipeline cleaning apparatus as in claim 3, wherein: the quantitative unit further comprises a third valve and a third pipeline; one end of the third pipeline is communicated with the inner cavity of the quantitative container, and the other end of the third pipeline is selectively communicated with the outside atmosphere through the third valve.
8. The nuclide delivery pipeline cleaning apparatus as in claim 7, wherein: and one end of the third pipeline, which is communicated with the inner cavity of the quantitative container, is positioned at a position higher than the liquid level of the cleaning agent.
9. The nuclide delivery pipeline cleaning apparatus as in claim 3, wherein: one end of the second pipeline, which is positioned in the quantitative container, is positioned at the bottom of the quantitative container.
10. A nuclide delivery pipeline cleaning system, comprising: the nuclide delivery pipeline cleaning system comprises the nuclide delivery pipeline cleaning device as defined in any one of claims 1 to 9 and a controller electrically connected with the nuclide delivery pipeline cleaning device for controlling the nuclide delivery pipeline cleaning device to deliver cleaning agents to the delivery pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220032870.7U CN217121132U (en) | 2022-01-07 | 2022-01-07 | Nuclide transmission pipeline cleaning device and nuclide transmission pipeline cleaning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202220032870.7U CN217121132U (en) | 2022-01-07 | 2022-01-07 | Nuclide transmission pipeline cleaning device and nuclide transmission pipeline cleaning system |
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