WO2022062710A1 - 一种压水堆核电一回路总含气量测定装置 - Google Patents

一种压水堆核电一回路总含气量测定装置 Download PDF

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Publication number
WO2022062710A1
WO2022062710A1 PCT/CN2021/110864 CN2021110864W WO2022062710A1 WO 2022062710 A1 WO2022062710 A1 WO 2022062710A1 CN 2021110864 W CN2021110864 W CN 2021110864W WO 2022062710 A1 WO2022062710 A1 WO 2022062710A1
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WO
WIPO (PCT)
Prior art keywords
valve
gas content
measuring
total gas
pressurized water
Prior art date
Application number
PCT/CN2021/110864
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English (en)
French (fr)
Inventor
陈东
侯涛
苗丽
吴旭东
刘高勇
Original Assignee
三门核电有限公司
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Application filed by 三门核电有限公司 filed Critical 三门核电有限公司
Priority to US17/433,023 priority Critical patent/US11881321B2/en
Publication of WO2022062710A1 publication Critical patent/WO2022062710A1/zh

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/02—Devices or arrangements for monitoring coolant or moderator
    • G21C17/022—Devices or arrangements for monitoring coolant or moderator for monitoring liquid coolants or moderators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
    • G01N7/14—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1031—Sampling from special places
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1031—Sampling from special places
    • G01N2001/1037—Sampling from special places from an enclosure (hazardous waste, radioactive)
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1031—Sampling from special places
    • G01N2001/105—Sampling from special places from high-pressure reactors or lines

Definitions

  • the invention relates to the technical field of nuclear safety and nuclear system detection, in particular to a device for measuring the total gas content of a primary circuit of a pressurized water reactor nuclear power plant.
  • Nuclear power is one of the three pillars of power in the world today. At present, there are more than 400 nuclear power units in operation in more than 30 countries and regions in the world, with a total capacity of more than 300 million kilowatts; there are many types of nuclear power plants, such as AP1000, CPR1000, CNP1000 , ACP1000, CAP1000, etc. Among them, the PWR nuclear power plant uses the primary circuit main pump to transport the reactor coolant, so that it can complete the circulation between the core, the coolant loop and the steam generator, realize the heat transfer on the primary side, and also have the function of ensuring the safety of the core. , is one of the most important main equipment of nuclear power plant.
  • the present invention proposes a device for measuring the total gas content of the primary circuit of a pressurized water reactor, which can quickly sample and accurately measure the gas content in the primary circuit, and is safe, reliable, easy to maintain, and easy to carry.
  • a device for measuring the total gas content of a primary circuit of a pressurized water reactor nuclear power plant comprising a shielding shield, a sampling assembly and a sample measuring assembly detachably connected to the shielding shield;
  • the sampling assembly includes
  • the first valve is connected to a bottle mouth of the sampling bottle through a pipeline;
  • the second valve is connected with another bottle mouth of the sampling bottle through a pipeline;
  • a first quick female connector connected with the valve through a pipeline
  • the second quick female connector is connected with the second valve through a pipeline
  • balance pipeline one end of which is connected to the pipeline between the first valve and the first quick female joint, and the other end is connected to the pipeline between the second valve and the second quick female joint;
  • the sample measurement assembly includes
  • a stop valve connected with the first valve port of the three-way valve through a pipeline
  • the first quick male connector is connected with the second valve port of the three-way valve through a hose;
  • the second quick male connector is connected with the third valve port of the three-way valve through a hose;
  • the peristaltic pump is detachably connected with the hose located between the first quick male joint and the three-way valve.
  • the sample measurement assembly further includes
  • a titration stand is connected to the shielding shield for installing the volume measuring tube.
  • the titration stand includes
  • a support rod vertically penetrates the top of the shielding shield, and the support rod located inside the shielding shield is fixedly connected to the shielding shield;
  • the butterfly clip is connected with the support rod located outside the shielding shield and is detachably connected with the volume measuring tube.
  • the top of the shielding shield is provided with a volumetric tube perforation allowing the volumetric tube to penetrate therethrough.
  • the shielding protective cover includes a cover door, and the cover door is provided with
  • the second opening allows the adjustment knob of the second valve to pass out of the shielding shield
  • the third opening allows the adjusting knob of the shut-off valve to pass out of the shielding shield.
  • the side wall of the shielding shield is provided with
  • the hose is perforated, allowing the part of the hose between the first quick male joint and the three-way valve to pass out of the shielding shield.
  • a limit mounting bracket that is detachably connected to the sampling assembly and the sample measurement assembly is provided inside the shielding protective cover.
  • a handle is provided on the top of the shielding protective cover.
  • both the first valve and the second valve are needle valves.
  • the pipe adopts a ferrule type pipe.
  • the device for measuring the total gas content of the primary circuit of the pressurized water reactor nuclear power plant of the present application is convenient for disassembly and assembly, easy to carry, can take samples quickly, can measure the total gas content of the primary circuit accurately, and can be effectively used for detecting the gas content of the coolant in the primary circuit.
  • the setting of the shielding shield can reduce the radiation dose of the coolant to the inspectors, ensuring the life safety of the inspectors.
  • FIG. 1 is a schematic structural diagram of a sampling assembly and a sample measurement assembly of the present application
  • FIG. 2 is a schematic structural diagram of the device for measuring the total gas content of the primary circuit of the pressurized water reactor nuclear power of the present application;
  • Fig. 3 is a side view of the measuring device in Fig. 2;
  • FIG. 4 is a schematic structural diagram of the shielding protective cover of the present application.
  • a device for measuring the total gas content of the primary circuit of a pressurized water reactor nuclear power plant includes a shielding shield 1 , and a sampling assembly and a sample measuring assembly detachably connected to the shielding shield 1 .
  • the shielding protective cover 1 is provided with a limit mounting frame that is detachably connected to the sampling assembly and the sample measuring assembly.
  • the sampling assembly and the sample measuring assembly can be quickly connected or disassembled with the shielding protective cover 1 through the limit mounting frame, which improves the performance of the shielding protective cover 1. The convenience of using the device of the present application.
  • the shielding shield 1 is provided with a handle on the top of the cover, and the handle is arranged to facilitate the staff to carry the device for measuring the total gas content of the primary circuit of the pressurized water reactor nuclear power of the present application.
  • the coolant has radiation, and the radiation dose of the measuring personnel during the measurement process can be reduced by shielding the protective cover 1 .
  • the sampling assembly includes a sampling bottle 21, a valve one 22 connected to a bottle mouth of the sampling bottle 21 through a pipeline, a valve two 23 connected to another bottle mouth of the sampling bottle 21 through a pipeline, and a valve two 23 connected to the other bottle mouth of the sampling bottle 21 through a pipeline.
  • the first quick female connector 24 connected to the valve one 22, the second quick female connector 25 connected to the valve two 23 through the pipeline, one end is connected to the one end between the valve one 22 and the first quick female connector 24.
  • the pipeline is connected, and the other end is connected to the balance pipeline 26 between the valve two 23 and the second quick female connector 25 .
  • the specific use method of the sampling assembly is as follows: first take the sampling assembly out of the shielding protective cover 1, then open the valve two 23 and valve one 22 in the sampling assembly, then close the two valves on the sampling interface of the primary circuit, and then The second quick female connector 25 and the first quick female connector 24 of the sampling assembly are connected to the two sampling ports of the first circuit in turn, then open the two valves on the sampling port of the first circuit, wait for about 1 minute, and after the sampling is completed, first Close the two valves on the sampling interface of the primary circuit, then close the valve two 23 and valve one 22 in the sampling assembly in turn, and finally connect the second quick female connector 25 and the first quick female connector 24 of the sampling assembly to the sampling interface of the first circuit Disengage, at this point, the sampling step is complete.
  • the nominal volume of the sampling bottle 21 is 150ml, and the volume can also be appropriately increased.
  • the material used is stainless steel to meet the requirements of explosion-proof, corrosion-resistance and strength.
  • the first valve 22 and the second valve 23 are needle valves, which are convenient for flow regulation.
  • the second quick female connector 25 and the first quick female connector 24 not only match with the second quick male connector 35 and the first quick male connector 34, but also match with the sampling interface, which is convenient for quick sampling. function to prevent sample leakage.
  • Each element in the sampling assembly is connected by a ferrule pipe, which is convenient for sealing and convenient for maintenance and replacement.
  • the setting function of the balance pipe 26 is to prevent air leakage and achieve the effect of self-balancing. If the balance pipe 26 is not provided, when connecting the second quick male connector 35 and the second quick female connector 25, and connecting the first quick male connector 34 and the first quick female connector 24, it is necessary to open the valve one 22 and the valve two 23. , otherwise, due to the high pressure of the sample, the second quick male connector 35 and the second quick female connector 25, the first quick male connector 34 and the first quick female connector 24 cannot be connected, and when the valve one 22 and the second valve 23 are opened If the joints are connected in any situation, the gas in the sampling bottle 21 will leak out, making the measurement result of the total gas content in the primary circuit of the pressurized water reactor nuclear power inaccurate.
  • the sample measurement assembly includes a three-way valve 31, a stop valve 36 connected to the first valve port of the three-way valve 31 through a pipeline, a volume measurement tube 32 connected to the stop valve 36 through a hose, and a volume measurement tube 32 connected to the stop valve 36 through a hose.
  • the first quick male joint 34 connected to the second valve port of the three-way valve 31, the second quick male joint 35 connected to the third valve port of the three-way valve 31 through a hose, and the A peristaltic pump 33 with a hose detachable connection between a quick male connector 34 and the three-way valve 31 .
  • the specific method for measuring the gas content in the sample includes step 1) First, use a beaker to inject water from the upper part of the volume measuring tube 32 of the sample measuring assembly, until the first quick male joint 34 and the second quick male joint 35 are toggled. 34 and the second quick male joint 35 both have water flow out (when the first quick male joint 34 and the second quick male joint 35 are toggled, a water catcher can be placed at the lower part of the first quick male joint 34 and the second quick male joint 35 box, to prevent the water flow from wetting the shielding shield 1, stop water injection, and close the stop valve 36. After the water filling is completed, the sample measurement component is a water entity. At this time, the peristaltic pump 33 is not clamped to the hose.
  • Step 2 Connect the second quick male connector 35 to the second quick female connector 25, and connect the first quick male connector 34 to the first quick female connector 24.
  • the valve two 23 and the valve one 22 are both closed .
  • Step 3 Use a beaker to inject water from the upper part of the volume measuring tube 32, and slowly open the stop valve 36, so that the liquid level of the volume measuring tube reaches the reading of 20mL.
  • Step 4) Slowly open the second valve 23, and when the liquid level of the volume measuring tube 32 is stable, close the stop valve 36.
  • Step 5 Put the hose on the peristaltic pump 33, open the valve one 22, turn on the power of the peristaltic pump 33, adjust the peristaltic pump 33 to the 1st gear and close it after 30S, remove the hose from the peristaltic pump 33, close the valve One 22, slowly open the stop valve 36, then close the stop valve 36, and record the liquid level value of the volume measuring tube 32 rising.
  • Step 6) Repeat step 5), when closing valve one 22, slowly open stop valve 36, the liquid level of volume measuring tube 32 no longer changes or drops slightly, close valve two 23, close stop valve 36, and record the rise of volume measuring tube Level value A.
  • the gas content in the sample can be calculated from the liquid level value A and other measurement data.
  • the peristaltic pump 33 is used to circulate the entire sampling circuit to ensure that the gas in the sample in the sampling bottle is fully released.
  • the volume of the volume measuring tube 32 is not less than 50ml, which is used to measure the gas volume in the sample.
  • the top of the shielding shield 1 is provided with a volume measuring tube perforation allowing the volume measuring tube 32 to penetrate therethrough.
  • the sample measuring assembly further includes a titration stand 4 connected to the shielding shield 1 for installing the volume measuring tube 32 .
  • the titration stand 4 includes a support rod vertically penetrating the top of the shielding shield 1, the support rod located inside the shielding shield 1 is fixedly connected to the shielding shield 1, and is connected to the shielding shield 1.
  • the support rod outside the shielding shield 1 is connected with the butterfly clip which is detachably connected with the volume measuring tube 32 .
  • the shielding cover 1 includes a cover door, and the cover door is provided with a first opening that allows the adjustment knob of the valve one 22 to pass through the outside of the shielding cover 1, and allows the adjustment knob of the valve two 23 to pass through.
  • the second opening outside the shielding shield 1 allows the adjustment knob of the shut-off valve 36 to pass through the third opening outside the shielding shield 1 .
  • the side wall of the shielding shield 1 is provided with a hose perforation that allows the part of the hose between the first quick male connector 34 and the three-way valve 31 to pass out of the shielding shield 1 .
  • the device for measuring the total gas content of the primary circuit of the pressurized water reactor nuclear power plant of the present application is convenient for disassembly and assembly, easy to carry, can take samples quickly, can measure the total gas content of the primary circuit accurately, and can be effectively used for detecting the gas content of the coolant in the primary circuit.
  • the setting of the shielding shield can reduce the radiation dose of the coolant to the inspectors, ensuring the life safety of the inspectors.

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Abstract

本发明涉及核安全与核系统检测技术领域，具体为一种压水堆核电一回路总含气量测定装置，包括屏蔽防护罩，以及与所述屏蔽防护罩拆卸式连接的取样组件和样品测量组件；所述取样组件包括取样瓶；阀一，通过管道与所述取样瓶的一瓶口连接；阀二，通过管道与所述取样瓶的另一瓶口连接；第一快速母接头，通过管道与所述阀一连接；第二快速母接头，通过管道与所述阀二连接；平衡管道，一端与位于所述阀一及所述第一快速母接头之间的管道连接、另一端与位于所述阀二及所述第二快速母接头之间的管道连接。本申请的总含气量测定装置拆装便利、携带方便，可快速取样，对一回路总含气量测定精确，能够有效地用于检测一回路中冷却剂的含气量。

Description

一种压水堆核电一回路总含气量测定装置 技术领域
本发明涉及核安全与核系统检测技术领域，具体为一种压水堆核电一回路总含气量测定装置。
 背景技术
核电是当今世界电力的三大支柱之一，目前世界上有三十多个国家和地区共400余台核电机组在运行，总容量超过3亿千瓦；核电机型很多，例如AP1000、CPR1000、CNP1000、ACP1000、CAP1000等。其中压水堆核电厂使用一回路主泵输送反应堆冷却剂，使其完成在堆芯、冷却剂环路、蒸汽发生器间的循环，实现一次侧热力传输，同时也具有确保堆芯安全的功能，是核电站最重要的主设备之一。当一回路冷却剂中含气量过高时，气体会在主泵的吸入口析出并附着在轴承表面，影响轴承的润滑和冷却，造成泵的损坏，同时主泵叶轮可能在汽蚀影响下遭到损坏。而目前国内没有相关的标准和分析方法来测定压水堆核电站一回路的总含气量，为了确认一回路冷却剂除气的效果，确保主泵安全稳定运行，需要设计一种能够测定反应堆一回路冷却剂总含气量的装置。
 技术问题
本发明针对现有技术存在的问题，提出了一种压水堆核电一回路总含气量测定装置，能够快速取样并准确测量一回路中的含气量，且安全可靠、维护便利、携带方便。
 技术解决方案
一种压水堆核电一回路总含气量测定装置，包括屏蔽防护罩，以及与所述屏蔽防护罩拆卸式连接的取样组件和样品测量组件；
所述取样组件包括  
取样瓶；
阀一，通过管道与所述取样瓶的一瓶口连接；
阀二，通过管道与所述取样瓶的另一瓶口连接；
第一快速母接头，通过管道与所述阀一连接；
第二快速母接头，通过管道与所述阀二连接；
平衡管道，一端与位于所述阀一及所述第一快速母接头之间的管道连接、另一端与位于所述阀二及所述第二快速母接头之间的管道连接；
所述样品测量组件包括
三通阀；
截止阀，通过管道与所述三通阀的第一阀口连接；
滴定管，通过软管与所述截止阀连接；
第一快速公接头，通过软管与所述三通阀的第二阀口连接；
第二快速公接头，通过软管与所述三通阀的第三阀口连接；
蠕动泵，与位于所述第一快速公接头及所述三通阀之间的软管拆卸式连接。
作为优选，所述样品测量组件还包括
滴定台架，与所述屏蔽防护罩连接，用于安装所述体积测量管。
作为优选，所述滴定台架包括
支撑杆，竖向贯穿所述屏蔽防护罩罩顶，位于所述屏蔽防护罩内部的所述支撑杆与所述屏蔽防护罩固定连接；
蝴蝶夹，与位于所述屏蔽防护罩外部的所述支撑杆连接且与所述体积测量管拆卸式连接。
作为优选，所述屏蔽防护罩罩顶设有允许所述体积测量管贯穿的体积测量管穿孔。
作为优选，所述屏蔽防护罩包括罩门，所述罩门设有
第一开孔，允许所述阀一的调节旋钮穿出所述屏蔽防护罩外；
第二开孔，允许所述阀二的调节旋钮穿出所述屏蔽防护罩外；
第三开孔，允许所述截止阀的调节旋钮穿出所述屏蔽防护罩外。
作为优选，所述屏蔽防护罩的侧壁设有
软管穿孔，允许所述第一快速公接头与所述三通阀之间的软管部分穿出至所述屏蔽防护罩外。
作为优选，所述屏蔽防护罩内部设有与取样组件、样品测量组件拆卸式连接的限位安装架。作为优选，所述屏蔽防护罩罩顶设有把手。
作为优选，所述阀一及所述阀二均采用针型阀。
作为优选，所述管道采用卡套式管道。
 有益效果
本申请的压水堆核电厂一回路总含气量测定装置拆装便利、携带方便，可快速取样，对一回路总含气量测定精确，能够有效地用于检测一回路中冷却剂的含气量以确保主泵安全高效运行；同时，屏蔽防护罩的设置可减少冷却剂对检测人员的辐射剂量，保证了检测人员的生命安全。
 附图说明
图1为本申请取样组件和样品测量组件的结构示意图；
图2为本申请压水堆核电一回路总含气量测定装置的结构示意图；
图3为图2中测定装置的侧视图；
图4为本申请屏蔽防护罩的结构示意图。
 本发明的最佳实施方式
如图1至4所示，一种压水堆核电一回路总含气量测定装置，包括屏蔽防护罩1，以及与所述屏蔽防护罩1拆卸式连接的取样组件和样品测量组件。所述屏蔽防护罩1内部设有与取样组件、样品测量组件拆卸式连接的限位安装架，通过限位安装架可将取样组件和样品测量组件与屏蔽防护罩1快速连接或拆卸，提高了本申请装置的使用便利度。所述屏蔽防护罩1罩顶设有把手，把手的设置便于工作人员搬运本申请压水堆核电一回路总含气量测定装置。另外，冷却剂具有辐射，通过屏蔽防护罩1可以降低测量人员在测量过程中的辐射剂量。
所述取样组件包括取样瓶21，通过管道与所述取样瓶21的一瓶口连接的阀一22，通过管道与所述取样瓶21的另一瓶口连接的阀二23，通过管道与所述阀一22连接的第一快速母接头24，通过管道与所述阀二23连接的第二快速母接头25，一端与位于所述阀一22及所述第一快速母接头24之间的管道连接、另一端与位于所述阀二23及所述第二快速母接头25之间的管道连接的平衡管道26。
取样组件的具体使用方法如下，先将取样组件从屏蔽防护罩1中拿出，然后打开取样组件中的阀二23和阀一22，接着关闭一回路取样接口上的两个阀门，再接着将取样组件的第二快速母接头25、第一快速母接头24依次与一回路的两个取样接口连接，然后打开一回路取样接口上的两个阀门，等待1分钟左右，待取样完成后，先关闭一回路取样接口上的两个阀门，然后依次关闭取样组件中的阀二23和阀一22，最后将取样组件的第二快速母接头25、第一快速母接头24与一回路的取样接口脱开，此时，取样步骤完成。
其中，取样瓶21的公称容积为150ml，也可适当增大容积，采用的材质是不锈钢，以满足防爆、耐腐蚀和强度要求。所述阀一22及所述阀二23均采用针型阀，便于调节流量。第二快速母接头25、第一快速母接头24不仅与第二快速公接头35、第一快速公接头34匹配，还与取样接口相匹配，便于快速取样，同时快速接头均具有双端关断功能，以防取样漏液。取样组件中各元件采用卡套管道进行连接，方便密封的同时也便于维修更换。
另外，平衡管道26的设置作用是防止泄气，起到自平衡的效果。如果不设置平衡管道26，在连接第二快速公接头35与第二快速母接头25、连接第一快速公接头34与第一快速母接头24时，就需要将阀一22和阀二23打开，否则，由于样品的高压强导致第二快速公接头35与第二快速母接头25、第一快速公接头34与第一快速母接头24无法连接，而在阀一22和阀二23打开的情况进行接头连接，则会导致取样瓶21内气体泄流，使得压水堆核电一回路总含气量的测定结果不准确。
所述样品测量组件包括三通阀31，通过管道与所述三通阀31的第一阀口连接的截止阀36，通过软管与所述截止阀36连接的体积测量管32，通过软管与所述三通阀31的第二阀口连接的第一快速公接头34，通过软管与所述三通阀31的第三阀口连接的第二快速公接头35，与位于所述第一快速公接头34及所述三通阀31之间的软管拆卸式连接的蠕动泵33。
样品中含气量的具体测量方法，包括步骤1）先使用烧杯从样品测量组件的体积测量管32上部注水，直至拨动第一快速公接头34和第二快速公接头35时第一快速公接头34和第二快速公接头35都有水流流出（在拨动第一快速公接头34和第二快速公接头35时可在第一快速公接头34和第二快速公接头35下部放置一个接水盒，避免水流打湿屏蔽防护罩1，停止注水，关闭截止阀36，充水完成后，样品测量组件为水实体，此时，蠕动泵33不与软管卡接。
步骤2）将第二快速公接头35和第二快速母接头25连接，将第一快速公接头34和第一快速母接头24连接，连接过程中，阀二23和阀一22均处于关闭状态。
步骤3）使用烧杯从体积测量管32上部注水，并缓慢打开截止阀36，使体积测量管液位至20mL读数处。
步骤4）缓慢打开阀二23，当体积测量管32液位稳定后，关闭截止阀36。
步骤5）将软管卡在蠕动泵33上，打开阀一22，打开蠕动泵33电源，调节蠕动泵33至1档并保持30S后关闭，将软管从蠕动泵33上拆下，关闭阀一22，缓慢打开截止阀36，然后关闭截止阀36，记录体积测量管32上升的液位值。
步骤6）重复步骤5），当关闭阀一22，缓慢打开截止阀36，体积测量管32液位不再变化或出现轻微下降，关闭阀二23，关闭截止阀36，记录体积测量管上升的液位值A。通过液位值A以及其他测量数据可以计算出样品中的含气量。
其中，蠕动泵33是为了让整个取样回路循环起来，保证取样瓶中样品里面的气体充分释放，蠕动泵33上具有与软管管体卡接的夹口。体积测量管32量程不小于50ml，用于测量样品中气体体积。所述屏蔽防护罩1罩顶设有允许所述体积测量管32贯穿的体积测量管穿孔。所述样品测量组件还包括与所述屏蔽防护罩1连接的滴定台架4，用于安装所述体积测量管32。所述滴定台架4包括竖向贯穿所述屏蔽防护罩1罩顶的支撑杆，位于所述屏蔽防护罩1内部的所述支撑杆与所述屏蔽防护罩1固定连接，以及与位于所述屏蔽防护罩1外部的所述支撑杆连接且与所述体积测量管32拆卸式连接的蝴蝶夹。
所述屏蔽防护罩1包括罩门，所述罩门设有允许所述阀一22的调节旋钮穿出所述屏蔽防护罩1外的第一开孔，允许所述阀二23的调节旋钮穿出所述屏蔽防护罩1外的第二开孔，允许所述截止阀36的调节旋钮穿出所述屏蔽防护罩1外的第三开孔。所述屏蔽防护罩1的侧壁设有允许所述第一快速公接头34与所述三通阀31之间的软管部分穿出至所述屏蔽防护罩1外的软管穿孔。
本申请的压水堆核电厂一回路总含气量测定装置拆装便利、携带方便，可快速取样，对一回路总含气量测定精确，能够有效地用于检测一回路中冷却剂的含气量以确保主泵安全高效运行；同时，屏蔽防护罩的设置可减少冷却剂对检测人员的辐射剂量，保证了检测人员的生命安全。
上面所述的实施例仅是对本发明的优选实施方式进行描述，并非对本发明的构思和范围进行限定。在不脱离本发明设计构思的前提下，本领域普通人员对本发明的技术方案做出的各种变型和改进，均应落入到本发明的保护范围，本发明请求保护的技术内容，已经全部记载在权利要求书中。

Claims (10)

  1. 一种压水堆核电一回路总含气量测定装置，其特征在于：包括屏蔽防护罩（1），以及与所述屏蔽防护罩（1）拆卸式连接的取样组件和样品测量组件；
    所述取样组件包括
    取样瓶（21）；
    阀一（22），通过管道与所述取样瓶（21）的一瓶口连接；
    阀二（23），通过管道与所述取样瓶（21）的另一瓶口连接；
    第一快速母接头（24），通过管道与所述阀一（22）连接；
    第二快速母接头（25），通过管道与所述阀二（23）连接；
    平衡管道（26），一端与位于所述阀一（22）及所述第一快速母接头（24）之间的管道连接、另一端与位于所述阀二（23）及所述第二快速母接头（25）之间的管道连接；
    所述样品测量组件包括
    三通阀（31）；
    截止阀（36），通过管道与所述三通阀（31）的第一阀口连接；
    体积测量管（32），通过软管与所述截止阀（36）连接；
    第一快速公接头（34），通过软管与所述三通阀（31）的第二阀口连接；
    第二快速公接头（35），通过软管与所述三通阀（31）的第三阀口连接；
    蠕动泵（33），与位于所述第一快速公接头（34）及所述三通阀（31）之间的软管拆卸式连接。
  2. 根据权利要求1所述的一种压水堆核电一回路总含气量测定装置，其特征在于：所述样品测量组件还包括
    滴定台架（4），与所述屏蔽防护罩（1）连接，用于安装所述体积测量管（32）。
  3. 根据权利要求2所述的一种压水堆核电一回路总含气量测定装置，其特征在于：所述滴定台架（4）包括
    支撑杆，竖向贯穿所述屏蔽防护罩（1）罩顶，位于所述屏蔽防护罩（1）内部的所述支撑杆与所述屏蔽防护罩（1）固定连接；
    蝴蝶夹，与位于所述屏蔽防护罩（1）外部的所述支撑杆连接且与所述体积测量管（32）拆卸式连接。
  4. 根据权利要求3所述的一种压水堆核电一回路总含气量测定装置，其特征在于：所述屏蔽防护罩（1）罩顶设有允许所述体积测量管（32）贯穿的体积测量管穿孔。
  5. 根据权利要求1所述的一种压水堆核电一回路总含气量测定装置，其特征在于：所述屏蔽防护罩（1）包括罩门，所述罩门设有
    第一开孔，允许所述阀一（22）的调节旋钮穿出所述屏蔽防护罩（1）外；
    第二开孔，允许所述阀二（23）的调节旋钮穿出所述屏蔽防护罩（1）外；
    第三开孔，允许所述截止阀（36）的调节旋钮穿出所述屏蔽防护罩（1）外。
  6. 根据权利要求1所述的一种压水堆核电一回路总含气量测定装置，其特征在于：所述屏蔽防护罩（1）的侧壁设有
    软管穿孔，允许所述第一快速公接头（34）与所述三通阀（31）之间的软管部分穿出至所述屏蔽防护罩（1）外。
  7. 根据权利要求1所述的一种压水堆核电一回路总含气量测定装置，其特征在于：所述屏蔽防护罩（1）内部设有与取样组件、样品测量组件拆卸式连接的限位安装架。
  8. 根据权利要求1所述的一种压水堆核电一回路总含气量测定装置，其特征在于：所述屏蔽防护罩（1）罩顶设有把手。
  9. 根据权利要求1所述的一种压水堆核电一回路总含气量测定装置，其特征在于：所述阀一（22）及所述阀二（23）均采用针型阀。
  10. 根据权利要求1所述的一种压水堆核电一回路总含气量测定装置，其特征在于：所述管道采用卡套式管道。
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