CN109100527B - Sample channel system of waste cladding measuring device and cleaning method thereof - Google Patents
Sample channel system of waste cladding measuring device and cleaning method thereof Download PDFInfo
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- 238000004140 cleaning Methods 0.000 title claims abstract description 93
- 239000002699 waste material Substances 0.000 title claims abstract description 23
- 238000005253 cladding Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005259 measurement Methods 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 230000002285 radioactive effect Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims 1
- 238000005202 decontamination Methods 0.000 abstract description 8
- 230000003588 decontaminative effect Effects 0.000 abstract description 7
- 239000007921 spray Substances 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002915 spent fuel radioactive waste Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
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Abstract
本发明属于核测量装置技术领域，涉及一种废包壳测量装置样品通道系统及其清洗方法。所述的样品通道系统包括样品管道、清洗液管道、第一电子阀、清洗液喷口、清洗液排出管道、测量及控制自动化系统，所述的清洗液管道连接所述的样品管道，用于输送清洗液并通过其上设置的所述的清洗液喷口将清洗液喷到所述的样品管道的内管壁上进行样品管道的清洗；所述的清洗液排出管道连接所述的样品管道，用于排出清洗所述的样品管道后的清洗液；所述的测量及控制自动化系统用于测量所述的样品管道中的放射性并控制位于所述的样品管道上的第一电子阀的开闭。利用本发明的废包壳测量装置样品通道系统及其清洗方法，能够实现样品管道内的自动淋洗与去污功能。
The invention belongs to the technical field of nuclear measurement devices, and relates to a sample channel system of a waste cladding measurement device and a cleaning method thereof. The sample channel system includes a sample pipeline, a cleaning fluid pipeline, a first electronic valve, a cleaning fluid spout, a cleaning fluid discharge pipeline, a measurement and control automation system, and the cleaning fluid pipeline is connected to the sample pipeline for conveying cleaning liquid and spray the cleaning liquid on the inner pipe wall of the sample pipeline through the cleaning liquid nozzle set on it to clean the sample pipeline; the cleaning liquid discharge pipeline is connected to the sample pipeline, and the The cleaning liquid after cleaning the sample pipeline is discharged; the measurement and control automation system is used to measure the radioactivity in the sample pipeline and control the opening and closing of the first electronic valve located on the sample pipeline. By using the sample channel system of the waste cladding measuring device and the cleaning method thereof of the present invention, the automatic rinsing and decontamination functions in the sample pipeline can be realized.
Description
技术领域technical field
本发明属于核测量装置技术领域，涉及一种废包壳测量装置样品通道系统及其清洗方法。The invention belongs to the technical field of nuclear measurement devices, and relates to a sample channel system of a waste cladding measurement device and a cleaning method thereof.
背景技术Background technique
随着我国核事业的快速发展，乏燃料的积累日益增多，为此与乏燃料后处理厂建设及工艺研究相关的工作也正在逐步实施。乏燃料组件经冷却后运输至后处理厂首端工艺线，通过剪切机剪切成若干小段，然后经过多级溶解、沥干后转运于废包壳测量装置中进行测量分析，经检测合格后方可进行后期处理。With the rapid development of my country's nuclear industry, the accumulation of spent fuel is increasing day by day. For this reason, work related to the construction of spent fuel reprocessing plants and process research is also being gradually implemented. The spent fuel assembly is cooled and transported to the head end process line of the reprocessing plant, cut into several small sections by a shearing machine, and then transferred to a waste cladding measuring device after multi-stage dissolution and draining for measurement and analysis, and the test is qualified Post-processing can be done later.
在废包壳测量过程中，当盛装废包壳的吊篮位于测量装置的样品通道内部时，吊篮会出现漏液等现象，导致随着时间的推移，测量装置样品通道内部的放射性本底会显著增高，从而对测量结果造成一定干扰。During the measurement of waste cladding, when the hanging basket containing the waste cladding is located inside the sample channel of the measuring device, the hanging basket will leak liquid and other phenomena, resulting in the radioactive background inside the sample channel of the measuring device over time. will increase significantly, causing some disturbance to the measurement results.
现有的样品通道清洗方法具有固定清洗周期、次数，存在清洗液过量或不足的问题。The existing sample channel cleaning method has fixed cleaning cycles and times, and has the problem of excessive or insufficient cleaning solution.
发明内容SUMMARY OF THE INVENTION
本发明的首要目的是提供一种废包壳测量装置样品通道系统，以能够实现样品管道内的自动淋洗与去污功能。The primary purpose of the present invention is to provide a sample channel system of a waste cladding measuring device, so as to realize automatic rinsing and decontamination functions in the sample pipeline.
为实现此目的，在基础的实施方案中，本发明提供一种废包壳测量装置样品通道系统，所述的样品通道系统包括样品管道、清洗液管道、第一电子阀、清洗液喷口、清洗液排出管道、测量及控制自动化系统，To achieve this purpose, in a basic embodiment, the present invention provides a sample channel system of a waste cladding measurement device, the sample channel system includes a sample pipeline, a cleaning fluid pipeline, a first electronic valve, a cleaning fluid spout, a cleaning fluid Liquid discharge pipeline, measurement and control automation system,
所述的清洗液管道连接所述的样品管道，用于输送清洗液并通过其上设置的所述的清洗液喷口将清洗液喷到所述的样品管道的内管壁上进行样品管道的清洗；The cleaning liquid pipeline is connected to the sample pipeline, and is used for transporting the cleaning liquid and spraying the cleaning liquid on the inner wall of the sample pipeline through the cleaning liquid nozzle set on it to clean the sample pipeline ;
所述的清洗液排出管道连接所述的样品管道，用于排出清洗所述的样品管道后的清洗液；The cleaning liquid discharge pipeline is connected to the sample pipeline, and is used for discharging the cleaning liquid after cleaning the sample pipeline;
所述的测量及控制自动化系统用于测量所述的样品管道中的放射性并控制位于所述的样品管道上的第一电子阀的开闭。The measurement and control automation system is used to measure the radioactivity in the sample pipeline and control the opening and closing of the first electronic valve located on the sample pipeline.
在一种优选的实施方案中，本发明提供一种废包壳测量装置样品通道系统，其中所述的测量及控制自动化系统通过控制软件进行所述的样品管道中的放射性测量，In a preferred embodiment, the present invention provides a waste cladding measurement device sample channel system, wherein the measurement and control automation system performs radioactivity measurement in the sample channel through control software,
若初始测量值高于本底阈值，则通过控制软件发送命令给作为其(即测量及控制自动化系统)组成部分的plc控制系统，由所述的plc控制系统控制打开所述的第一电子阀进行所述的样品管道的清洗；If the initial measured value is higher than the background threshold, the control software sends a command to the plc control system as a part of it (ie, the measurement and control automation system), and the plc control system controls to open the first electronic valve Carry out the cleaning of the sample pipeline;
若所述的样品管道经过清洗后，测量值低于本底阈值，则通过控制软件发送命令给所述的plc控制系统，由所述的plc控制系统控制关闭所述的第一电子阀停止所述的样品管道的清洗。If the measured value of the sample pipeline is lower than the background threshold after cleaning, the control software will send a command to the plc control system, and the plc control system will control and close the first electronic valve to stop all processes. cleaning of the sample line described above.
在一种优选的实施方案中，本发明提供一种废包壳测量装置样品通道系统，其中所述的样品通道系统还包括设置在所述的清洗液排出管道上的，受所述的测量及控制自动化系统控制开闭的第二电子阀。In a preferred embodiment, the present invention provides a sample channel system of a waste cladding measurement device, wherein the sample channel system further comprises a cleaning liquid discharge pipe, which is subjected to the measurement and The control automation system controls the opening and closing of the second electronic valve.
在一种优选的实施方案中，本发明提供一种废包壳测量装置样品通道系统，其中所述的样品通道系统还包括与所述的清洗液排出管道连接的溶解槽，用于接收储存清洗所述的样品管道后的清洗液。In a preferred embodiment, the present invention provides a sample channel system of a waste cladding measurement device, wherein the sample channel system further comprises a dissolution tank connected to the cleaning liquid discharge pipeline for receiving storage cleaning The cleaning solution after the sample pipeline.
本发明的第二个目的是提供利用如上所述的样品通道系统进行样品通道清洗的方法，以能够实现样品管道内的自动淋洗与去污功能。The second object of the present invention is to provide a method for cleaning the sample channel by using the above-mentioned sample channel system, so as to realize the automatic rinsing and decontamination functions in the sample pipeline.
为实现此目的，在基础的实施方案中，本发明提供利用如上所述的样品通道系统进行样品通道清洗的方法，所述的方法包括如下步骤：To achieve this, in a basic embodiment, the present invention provides a method for cleaning a sample channel using the sample channel system as described above, the method comprising the following steps:
(1)在所述的测量及控制自动化系统中设定所述的样品管道的放射性的本底阈值；(1) setting the background threshold of the radioactivity of the sample pipeline in the measurement and control automation system;
(2)利用所述的测量及控制自动化系统对移除废包壳的所述的样品管道进行放射性本底测量；(2) using the described measurement and control automation system to carry out radioactive background measurement on the described sample pipeline with the waste cladding removed;
(3)当步骤(2)测量得到的放射性本底测量值超过步骤(1)设定的本底阈值时，开启所述的第一电子阀进行所述的样品管道的清洗；(3) when the measured value of the radioactive background obtained in step (2) exceeds the background threshold value set in step (1), open the first electronic valve to clean the sample pipeline;
(4)关闭所述的第一电子阀，在所述的清洗液排出管道排完清洗液后，利用所述的测量及控制自动化系统对所述的样品管道的放射性进行测量；(4) closing the first electronic valve, and measuring the radioactivity of the sample pipeline by using the measurement and control automation system after the cleaning fluid discharge pipeline has discharged the cleaning fluid;
(5)若步骤(4)的测量值低于步骤(1)设定的本底阈值，则停止清洗；若步骤(4)的测量值高于步骤(1)设定的本底阈值，则重复步骤(3)与步骤(4)，直到测量值低于步骤(1)设定的本底阈值后停止清洗。(5) If the measured value in step (4) is lower than the background threshold set in step (1), then stop cleaning; if the measured value in step (4) is higher than the background threshold set in step (1), then Repeat steps (3) and (4) until the measured value is lower than the background threshold set in step (1) and then stop cleaning.
本发明的有益效果在于，利用本发明的废包壳测量装置样品通道系统及其清洗方法，能够实现样品管道内的自动淋洗与去污功能，并能够实现清洗液的循环利用。且本发明的样品通道系统清洗方法操作简单，能够减轻环境污染。The beneficial effect of the present invention is that, by using the sample channel system of the waste cladding measuring device and the cleaning method thereof, the automatic rinsing and decontamination functions in the sample pipeline can be realized, and the recycling of the cleaning liquid can be realized. Moreover, the cleaning method for the sample channel system of the present invention is simple to operate and can reduce environmental pollution.
本发明的样品通道系统设计能够自动判断是否需淋洗去污，在一定程度上实现了清洗液的合理使用，这样既避免了不必要的浪费，又解决了清洗不到位的问题，且减少了放射性废物的产生，从而满足了废物最小化的要求。此外，考虑到现场实际测量环境，人工清洗并不可行，因此，本发明的具有自动淋洗去污功能的样品通道系统具有很现实的实际应用意义。The design of the sample channel system of the present invention can automatically determine whether rinsing and decontamination is required, and to a certain extent, the rational use of the cleaning liquid is realized, which not only avoids unnecessary waste, but also solves the problem of insufficient cleaning, and reduces the The generation of radioactive waste, thus meeting the requirements of waste minimization. In addition, considering the actual measurement environment on site, manual cleaning is not feasible, therefore, the sample channel system with automatic rinsing and decontamination function of the present invention has very practical practical application significance.
附图说明Description of drawings
图1为示例性的本发明的废包壳测量装置样品通道系统的侧视图。1 is a side view of an exemplary waste cladding measurement device sample channel system of the present invention.
图2为示例性的本发明的废包壳测量装置样品通道系统的俯视图。2 is a top view of an exemplary waste cladding measurement device sample channel system of the present invention.
具体实施方式Detailed ways
示例性的本发明的废包壳测量装置样品通道系统的结构组成如图1-2所示，包括样品管道1、清洗液管道2、第一电子阀3、清洗液喷口4、清洗液排出管道5、第二电子阀6、溶解槽7、测量及控制自动化系统(图中未示出)。An exemplary structure of the sample channel system of the waste cladding measurement device of the present invention is shown in Figures 1-2, including a
清洗液管道2连接样品管道1，用于输送清洗液并通过其上设置的清洗液喷口4将清洗液喷到样品管道1的内管壁上进行样品管道1的清洗。The cleaning liquid pipeline 2 is connected to the
清洗液排出管道5的两端分别连接样品管道1与溶解槽7，用于排出清洗样品管道1后的清洗液至溶解槽7。Two ends of the cleaning
测量及控制自动化系统通过控制软件进行样品管道1中的放射性测量，The measurement and control automation system performs the radioactivity measurement in the
若初始测量值高于本底阈值，则通过控制软件发送命令给作为其组成部分的plc控制系统，由plc控制系统控制打开位于样品管道1上的第一电子阀3进行样品管道1的清洗；If the initial measured value is higher than the background threshold, send a command to the plc control system as its component through the control software, and the plc control system controls to open the first
若样品管道1经过清洗后，测量值低于本底阈值，则通过控制软件发送命令给plc控制系统，由plc控制系统控制关闭第一电子阀3停止样品管道1的清洗。If the measured value of the
此外，测量及控制自动化系统还通过控制软件控制plc控制系统，进而控制位于清洗液排出管道5上的第二电子阀6的开闭。In addition, the measurement and control automation system also controls the plc control system through the control software, thereby controlling the opening and closing of the second
利用上述示例性的本发明的废包壳测量装置样品通道系统进行样品通道清洗的示例性的方法的具体操作步骤如下：The specific operation steps of the exemplary method for cleaning the sample channel by using the sample channel system of the waste cladding measuring device of the present invention are as follows:
(1)根据工艺要求，在测量及控制自动化系统中设定样品管道1的放射性本底阈值。(1) According to the process requirements, set the radioactive background threshold value of the
(2)采用移取装置将测量对象废包壳从样品管道1中移取至指定位置。(2) The waste cladding of the measurement object is removed from the
(3)利用测量及控制自动化系统对样品管道1进行放射性本底测量。(3) Using the measurement and control automation system to measure the radioactive background of the
(4)当本底测量值超出本底阈值时，通过测量及控制自动化系统开启第一电子阀3与第二电子阀6启动自动淋洗去污，这样清洗液在压力作用下经由清洗液管道2，由清洗液喷口4喷出至样品管道1内管壁上，实现清洗过程。此过程中清洗液经由清洗液排出管道5排至溶解槽7中，溶解槽7中储存的清洗液可继续循环使用。(4) When the background measurement value exceeds the background threshold, the first
(5)关闭第一电子阀3，待清洗液经由清洗液排出管道5排出后关闭第二电子阀6。利用测量及控制自动化系统对样品管道1的放射性进行测量。(5) Close the first
(6)若步骤(5)的测量值低于步骤(1)设定的本底阈值，则停止清洗；若步骤(5)的测量值高于步骤(1)设定的本底阈值，则重复步骤(4)与步骤(5)，直到测量值低于步骤(1)设定的本底阈值时停止清洗。至此，淋洗去污过程结束。(6) If the measured value in step (5) is lower than the background threshold set in step (1), then stop cleaning; if the measured value in step (5) is higher than the background threshold set in step (1), then Repeat steps (4) and (5) until the measured value is lower than the background threshold set in step (1) and stop cleaning. At this point, the rinsing and decontamination process ends.
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若对本发明的这些修改和变型属于本发明权利要求及其同等技术的范围之内，则本发明也意图包含这些改动和变型在内。上述实施例或实施方式只是对本发明的举例说明，本发明也可以以其它的特定方式或其它的特定形式实施，而不偏离本发明的要旨或本质特征。因此，描述的实施方式从任何方面来看均应视为说明性而非限定性的。本发明的范围应由附加的权利要求说明，任何与权利要求的意图和范围等效的变化也应包含在本发明的范围内。It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their technical equivalents, the present invention is also intended to include such modifications and variations. The above-mentioned embodiments or implementations are merely illustrative of the present invention, and the present invention may also be implemented in other specific forms or other specific forms without departing from the gist or essential characteristics of the present invention. Accordingly, the described embodiments are to be regarded in all respects as illustrative and not restrictive. The scope of the present invention should be indicated by the appended claims, and any changes equivalent to the intent and scope of the claims should also be included within the scope of the present invention.
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| CN109100527A (en) | 2018-12-28 |
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