A glove box

Abstract

This application provides a glove box, including a box body, a sampling system, a waste liquid collection system, and a drainage system. The inner cavity of the box body is provided with a liquid collection tank. The sampling system is disposed on the outer wall of the box body. The inlet of the sampling system is for a sealed connection with an in-reactor irradiation device, and the outlet of the sampling system extends through the side wall of the box body into the inner cavity of the box body. The waste liquid collection system is disposed on the outer wall of the box body, the inlet of the waste liquid collection system is for a sealed connection with a differential pressure transmitter, and the outlet of the waste liquid collection system extends through the side wall of the box body and communicates with the liquid collection tank located in the inner cavity of the box body. The drainage system is sealed to a drain port on the box body. Through the arrangement of the sampling system, waste liquid collection system, and drainage system, a closed-loop operation is formed throughout the entire radiochemical analysis and detection of radioactivity levels, preventing coolant leakage from contaminating the working environment and endangering personnel safety.

Description

Technical Field

[0001] This application belongs to the field of pressurized water reactor in-reactor irradiation testing technology, specifically relating to a glove box. Background Technology

[0002] In-reactor irradiation testing is an essential step for nuclear fuel to move from research and development to engineering application. The safety of the test process is of paramount importance to the success or failure of the test. In order to monitor the safety status of the fuel during in-reactor irradiation testing, a water quality testing procedure is included. This procedure involves introducing the primary coolant from the reactor outlet at the test section into the water sampling glove box through a sampling tube during reactor operation, and then detecting the radioactivity level of the water through radiochemical analysis. Water sampling and analysis are of great significance to ensuring the success or failure of the test and the safety of reactor operation.

[0003] The in-reactor irradiation testing device in related technologies requires extending one sampling pipe, two pressure taps, and two measuring pipes to the outside of the reactor. The sampling pipe is used to extract the primary water coolant from the test section outlet for radiochemical analysis and monitoring. Currently, during irradiation test operation and routine water sampling, there are issues with coolant leakage and contamination of the working environment. Summary of the Invention

[0004] Therefore, the technical problem to be solved by this application is to provide a glove box that can prevent coolant leakage from contaminating the working environment.

[0005] To address the aforementioned issues, this application provides a glove box, comprising a box body, a sampling system, a waste liquid collection system, and a drainage system;

[0006] The inner cavity of the box is provided with a liquid collection tank;

[0007] The sampling system is located on the outer wall of the container; the sampling system inlet is used for a sealed connection with the in-pile irradiation device, and the sampling system outlet extends through the side wall of the container into the inner cavity of the container;

[0008] The waste liquid collection system is installed on the outer wall of the housing. The inlet of the waste liquid collection system is used for a sealed connection with the differential pressure transmitter. The outlet of the waste liquid collection system passes through the side wall of the housing and communicates with the liquid collection tank located in the inner cavity of the housing.

[0009] The drainage system is sealed to the drainage port on the tank.

[0010] Optionally, the sampling system includes multiple inlet-side sampling branches, a main sampling pipe, and an outlet-side sampling branch. The inlet-side sampling branches, the main sampling pipe, and the outlet-side sampling branch are respectively disposed on the outer wall of the container. At least one of the in-reactor irradiation devices is sealed to the inlet-side sampling branch. At least one of the inlet-side sampling branches is sealed to one end of the main sampling pipe, and the other end of the main sampling pipe is connected to one end of the outlet-side sampling branch. The other end of the outlet-side sampling branch extends through the side wall of the container into the inner cavity of the container.

[0011] Optionally, the outlet-side sampling branch pipe includes a manual sampling branch pipe and an electric sampling branch pipe; the inlet of the manual sampling branch pipe and the inlet of the electric sampling branch pipe are respectively sealed and connected to the outlet of the main sampling pipe, and the outlet of the manual sampling branch pipe and the outlet of the electric sampling branch pipe extend through the side wall of the box to the inner cavity of the box.

[0012] Optionally, the outlet-side sampling branch pipe further includes a first manual valve, a solenoid valve, and a flow meter; the first manual valve is disposed on the manual sampling branch pipe; the flow meter and the solenoid valve are disposed on the electric sampling branch pipe.

[0013] Optionally, the waste liquid collection system includes multiple connecting pipes, which are sequentially arranged on the outer wall of the housing. At least one differential pressure transmitter is sealed to the inlet of the connecting pipe, and the outlet of the connecting pipe passes through the side wall of the housing and communicates with the liquid collection tank located in the inner cavity of the housing.

[0014] Optionally, the waste liquid collection system further includes a second manual valve, one end of which is sealed to the inlet of the connecting pipe, and the other end of which is sealed to the differential pressure transmitter.

[0015] Optionally, the drainage system includes a first drainage branch and a second drainage branch. The inlets of the first drainage branch and the second drainage branch are both sealed to the drainage port of the housing. The outlets of the first drainage branch and the second drainage branch are both sealed to the inlet of the main drainage pipe. The outlet of the main drainage pipe is sealed to the sewage outlet.

[0016] Optionally, the drainage system further includes a third manual valve and a micro pump; the third manual valve is provided on the first drainage branch; and the micro pump is provided on the second drainage branch.

[0017] Optionally, the outer wall of the tank is provided with a pipe clamp seat, and the drainage system and the waste liquid collection system are respectively fixed to the outer wall of the tank through the corresponding pipe clamp seat.

[0018] Optionally, the glove box further includes a frame, with the box body disposed on top of the frame.

[0019] Beneficial effects

[0020] The glove box provided in the embodiments of the present invention has a sampling system installed on the box body for connecting to the in-reactor irradiation device to take water samples, i.e., coolant samples; a waste liquid collection system is installed to collect the waste liquid during the differential pressure transmitter venting process and discharge it into the waste liquid collection tank inside the box; and a drainage system is installed to promptly discharge the waste liquid in the waste liquid collection tank. In the entire process of radiochemical analysis and detection of radioactivity levels, a closed-loop operation is formed to avoid coolant leakage that contaminates the working environment and endangers personnel safety. Attached Figure Description

[0021] Figure 1 This is a front view of the glove box according to an embodiment of this application;

[0022] Figure 2 Examples of this application Figure 1 Sectional view along axis AA;

[0023] Figure 3 This is a right view of the glove box according to an embodiment of this application;

[0024] Figure 4 This is a left view of the glove box according to an embodiment of this application;

[0025] Figure 5 This is a rear view of the glove box according to an embodiment of this application;

[0026] Figure 6 This is a top view of the glove box according to an embodiment of this application;

[0027] Figure 7 This is a front view of the sampling system according to an embodiment of this application;

[0028] Figure 8 This is a side view of the sampling system according to an embodiment of this application;

[0029] Figure 9 This is a schematic diagram of the pipe layout of the waste liquid collection system according to an embodiment of this application;

[0030] Figure 10 This is a front view of the drainage system according to an embodiment of this application;

[0031] Figure 11 This is a side view of the drainage system according to an embodiment of this application.

[0032] The reference numerals in the attached figures are as follows:

[0033] 1-Sampling system; 101-Inlet side sampling branch pipe; 102-Sampling main pipe; 103-Electric sampling branch pipe; 104-Manual sampling branch pipe; 105-Flow meter; 106-Solenoid valve; 107-Fourth manual valve;

[0034] 2-Waste liquid collection system; 201-Connecting pipe; 202-Second manual valve;

[0035] 3-Drainage system; 301-First drainage branch; 302-Second drainage branch; 303-Third manual valve; 304-Micro pump;

[0036] 4-Enclosure; 5-Rack; 6-Viewing window; 7-Sealed door; 8-Glove hole; 9-Rotating touch screen; 10-Lighting system; 11-Ventilation and filtration system; 12-Power supply box; 13-Pipe clamp. Detailed Implementation

[0037] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0041] See also Figures 1 to 6As shown, a glove box provided according to an embodiment of this application has a radiation shielding function. The glove box includes a box body 4, a sampling system 1, a waste liquid collection system 2, and a drainage system 3. A liquid collection tank is provided in the inner cavity of the box body 4. The sampling system 1 is disposed on the outer wall of the box body 4. The inlet of the sampling system 1 is used for a sealed connection with the in-reactor irradiation device, and the outlet of the sampling system 1 extends through the side wall of the box body 4 to the inner cavity of the box body 4. The waste liquid collection system 2 is disposed on the outer wall of the box body 4. The inlet of the waste liquid collection system 2 is used for a sealed connection with a differential pressure transmitter, and the outlet of the waste liquid collection system 2 communicates with the liquid collection tank located in the inner cavity of the box body 4 through the side wall of the box body 4. The drainage system 3 is sealed to the drainage port on the box body 4.

[0042] A sampling system 1 is installed on the glove box 4 to connect with the in-reactor irradiation device to take water samples, i.e., coolant samples, for radiochemical analysis to detect the radioactivity level. A waste liquid collection system 2 is installed to collect the waste liquid generated during the differential pressure transmitter venting process and discharge it into the waste liquid collection tank inside the box 4. A drainage system 3 is installed to promptly discharge the waste liquid from the waste liquid collection tank. In the entire process of radiochemical analysis to detect the radioactivity level, a closed-loop operation is formed to prevent coolant leakage from contaminating the working environment and endangering personnel safety.

[0043] Among them, such as Figure 1 As shown, the housing 4 includes a lower side wall, a right side wall, and a rear side wall; the sampling system 1 is located on the right side wall, the waste liquid collection system 2 is located on the rear side wall, and the drainage system 3 is located on the lower side wall.

[0044] The box 4 includes an upper side wall, a left side wall, and a front side wall; the glove box also includes a viewing window 6, a sealing door 7, a glove hole 8, a touch screen 9, a lighting system 10, and a ventilation and filtration system 11; the viewing window 6 and the glove hole 8 are respectively located on the front side wall, with the viewing window 6 located above the glove hole 8; the sealing door 7 and the touch screen 9 are respectively located on the left side wall, with the touch screen 9 located above the sealing door 7; the lighting system 10 and the ventilation and filtration system 11 are located on the upper side wall.

[0045] Specifically, the shielding layer of the viewing window 6 is made of lead glass, which makes it easy to observe all parts inside the enclosure 4, so as to play an early warning role.

[0046] The lighting system 6 is specifically an explosion-proof lighting lamp. When replacing the lighting lamp, the sealing performance of the enclosure 4 should not be affected. The illuminance at the bottom of the enclosure 4 should not be less than 300 lx, and it should be easy to replace.

[0047] The ventilation and filtration system 11 removes aerosols carried in the air inside the housing 4 by means of a filter installed at the exhaust vent.

[0048] The glove box also includes a power supply box 12, which is electrically connected to the touch screen 9, the lighting system 10, and the ventilation and filtration system 11.

[0049] In another embodiment, such as Figure 7 and Figure 8 As shown, the sampling system 1 includes multiple inlet-side sampling branches 101, a main sampling pipe 102, and an outlet-side sampling branch. The inlet-side sampling branches 101, the main sampling pipe 102, and the outlet-side sampling branch are respectively installed on the outer wall of the housing 4. At least one in-reactor irradiation device is sealed to the inlet-side sampling branch 101. At least one inlet-side sampling branch 101 is sealed to one end of the main sampling pipe 102, and the other end of the main sampling pipe 102 is sealed to one end of the outlet-side sampling branch. The other end of the outlet-side sampling branch extends through the side wall of the housing 4 into the inner cavity of the housing 4. Through the design of the sampling system 1, the water sampling operation process is shortened, and the radiation dose level of the hands of the personnel handling the water samples is reduced.

[0050] Specifically, in this embodiment, there are four inlet-side sampling branch pipes 101. Each inlet-side sampling branch pipe 101 is sealed and connected to the corresponding in-reactor irradiation device, and a fourth manual valve 107 is provided between them. By adjusting the opening and closing of the fourth manual valve 107, the connection status between the in-reactor irradiation device and the inlet-side sampling branch pipe 101 is adjusted so as to sample and detect the radiation level of the coolant discharged from the outlet of the corresponding in-reactor irradiation device.

[0051] The sampling main pipe 102 includes a first main pipe and a second main pipe. One end of the first main pipe and one end of the second main pipe are connected by a four-way seal. The other end of the first main pipe is provided with a first three-way, and the other end of the second main pipe is provided with a second three-way. Two inlet-side sampling branch pipes 101 are respectively sealed and connected to the first three-way, and the other two inlet-side sampling branch pipes 101 are respectively sealed and connected to the four-way and the second three-way. The arrangement of the inlet-side sampling branch pipes 101 and the sampling main pipe 102 improves the access capacity.

[0052] In another embodiment, the outlet-side sampling branch pipe includes a manual sampling branch pipe 104 and an electric sampling branch pipe 103; the inlets of the manual sampling branch pipe 104 and the electric sampling branch pipe 103 are respectively sealed to the outlet of the sampling main pipe 102, and the outlets of the manual sampling branch pipe 104 and the electric sampling branch pipe 103 extend through the side wall of the housing 4 into the inner cavity of the housing 4. The electric sampling branch pipe 103 improves the convenience and safety of its use; the manual sampling branch pipe 104 performs the sampling function in the event of a failure of the electric sampling branch pipe 103.

[0053] Specifically, the manual sampling branch pipe 104 is sealed to the four-way valve; the electric sampling branch pipe 103 is sealed to the second three-way valve.

[0054] In another embodiment, the outlet-side sampling branch pipe further includes a first manual valve, a solenoid valve 106, and a flow meter 105; the first manual valve is disposed on the manual sampling branch pipe 104; the flow meter 105 and the solenoid valve 106 are disposed on the electric sampling branch pipe 103. The first manual valve is used to manually control the opening and closing of the outlet of the manual sampling branch pipe 104 when the electric sampling branch pipe 103 fails, so as to avoid the problem of failure to sample due to the failure of the electric sampling branch pipe 103; the solenoid valve 106 is used to automatically open or close the automatic sampling branch pipe 103; and the flow meter 105 is used to measure the fluid flow rate in the automatic sampling branch pipe 103, so as to facilitate timely detection of whether the electric sampling branch pipe 103 has a leakage fault, which may affect the surrounding environment.

[0055] Specifically, flow meter 105 is a mass flow meter.

[0056] In another embodiment, the waste liquid collection system 2 includes multiple pipes 201, which are sequentially arranged on the outer wall of the housing 4. At least one differential pressure transmitter is sealed to the inlet of the pipe 201, and the outlet of the pipe 201 passes through the side wall of the housing 4 and communicates with the liquid collection tank located in the inner cavity of the housing 4.

[0057] This application can effectively avoid prolonged close contact between personnel and reactor coolant during water sampling, thereby reducing the radiation dose to personnel. It also solves the problem of increased environmental pollution caused by coolant leakage during the differential pressure transmitter exhaust process through the waste liquid collection system 2. The waste liquid collection system 2 is used to collect the waste liquid leaked during the differential pressure transmitter exhaust process, effectively reducing the risk of radiation safety to personnel and the risk of environmental pollution.

[0058] Specifically, in this embodiment, as follows: Figure 5 and Figure 9 As shown, the waste liquid collection system 2 includes eight connecting pipes 201, which are arranged sequentially from left to right, and the inlets of the connecting pipes 201 are raised sequentially to avoid interference at the inlets of the connecting pipes 201; eight through holes are provided on the rear side wall of the housing 4, and the eight through holes are located on the same horizontal line. The outlets of the eight connecting pipes 201 pass through the corresponding through holes and are connected to the liquid collection tank inside the housing 4.

[0059] In another embodiment, the waste liquid collection system 2 further includes a second manual valve 202, one end of which is sealed to the inlet of the connecting pipe 201, and the other end is sealed to the differential pressure transmitter. The second manual valve 202 is used to connect or disconnect the differential pressure transmitter from the waste liquid collection system 2.

[0060] In another embodiment, the drainage system 3 includes a first drainage branch 301 and a second drainage branch 302. The inlets of both the first drainage branch 301 and the second drainage branch 302 are sealed to the drainage outlet of the tank 4. The outlets of both the first drainage branch 301 and the second drainage branch 302 are sealed to the inlet of the main drainage pipe. The outlet of the main drainage pipe is sealed to the sewage outlet. The parallel arrangement of the first drainage branch 301 and the second drainage branch 302 ensures timely discharge of waste liquid from the tank 4, preventing waste liquid leakage or overflow that could cause environmental pollution and harm to the health of operators.

[0061] In another embodiment, such as Figure 10 and Figure 11 As shown, the drainage system 3 also includes a third manual valve 303 and a micro pump 304; the third manual valve 303 is installed on the first drainage branch 301; and the micro pump 304 is installed on the second drainage branch 302. The third manual valve 303 and the micro pump 304 enable the first drainage branch 301 to become a self-draining branch and the second drainage branch to become a forced drainage branch. When the water volume is too large or in an emergency, the waste liquid inside the tank 4 is forcibly drained, the second drainage branch 302 is activated for discharge.

[0062] In another embodiment, a pipe clamp seat 13 is provided on the outer wall of the housing 4, and the drainage system 3 and the waste liquid collection system 2 are respectively fixed to the outer wall of the housing 4 through the corresponding pipe clamp seat 13. The pipe clamp seat 13 is used to fix the drainage system 3 and the waste liquid collection system 2 to the outer wall of the housing 4.

[0063] Specifically, the inlet sampling branch pipe 101 and the electric sampling branch pipe 103 on the drainage system 3 are fixed to the outer wall of the box 4 by pipe clamps 13; the connecting pipe 201 on the waste liquid collection system 2 is fixed to the outer wall of the box 4 by pipe clamps 13; it is also convenient to disassemble when the inlet sampling branch pipe 101, the electric sampling branch pipe 103 or the connecting pipe 201 is damaged.

[0064] In another embodiment, the glove box further includes a frame 5, with the box body 4 disposed on top of the frame 5. The frame 5 is used to support and fix the box body 4.

[0065] The power supply box 12 is installed on the rack 5 below the enclosure 4 and is used to power the system.

[0066] The solenoid valve 106, flow meter 105, and micro pump 304 are electrically connected to the power supply box 12.

[0067] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0068] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A glove box, characterized in that, include: Box (4), the inner cavity of which is provided with a liquid collection tank; A sampling system (1) is provided on the outer wall of the box (4); the inlet of the sampling system (1) is used for sealing connection with the in-reactor irradiation device, and the outlet of the sampling system (1) extends through the side wall of the box (4) to the inner cavity of the box (4); Waste liquid collection system (2), the waste liquid collection system (2) is set on the outer wall of the box (4), the inlet of the waste liquid collection system (2) is used for sealing connection with the differential pressure transmitter, and the outlet of the waste liquid collection system (2) passes through the side wall of the box (4) and communicates with the liquid collection tank located in the inner cavity of the box (4); The drainage system (3) is sealed to the drainage port on the housing (4).

2. The glove box according to claim 1, characterized in that, The sampling system (1) includes multiple inlet-side sampling branches (101), a sampling main pipe (102), and an outlet-side sampling branch. The inlet-side sampling branches (101), the sampling main pipe (102), and the outlet-side sampling branch are respectively disposed on the outer wall of the box (4). At least one of the in-reactor irradiation devices is sealed to the inlet-side sampling branch (101). At least one of the inlet-side sampling branches (101) is sealed to one end of the sampling main pipe (102). The other end of the sampling main pipe (102) is sealed to one end of the outlet-side sampling branch. The other end of the outlet-side sampling branch extends through the side wall of the box (4) into the inner cavity of the box (4).

3. The glove box according to claim 2, characterized in that, The outlet-side sampling branch pipe includes a manual sampling branch pipe (104) and an electric sampling branch pipe (103); the inlet of the manual sampling branch pipe (104) and the inlet of the electric sampling branch pipe (103) are respectively sealed to the outlet of the sampling main pipe (102), and the outlet of the manual sampling branch pipe (104) and the outlet of the electric sampling branch pipe (103) extend through the side wall of the box body (4) to the inner cavity of the box body (4).

4. The glove box according to claim 3, characterized in that, The outlet-side sampling branch pipe also includes a first manual valve, a solenoid valve (106), and a flow meter (105); the first manual valve is installed on the manual sampling branch pipe (104); the flow meter (105) and the solenoid valve (106) are installed on the electric sampling branch pipe (103).

5. The glove box according to claim 1, characterized in that, The waste liquid collection system (2) includes multiple connecting pipes (201), which are sequentially arranged on the outer wall of the housing (4). At least one differential pressure transmitter is sealed to the inlet of the connecting pipe (201), and the outlet of the connecting pipe (201) passes through the side wall of the housing (4) and communicates with the liquid collection tank located in the inner cavity of the housing (4).

6. The glove box according to claim 5, characterized in that, The waste liquid collection system (2) also includes a second manual valve (202), one end of which is sealed to the inlet of the pipe (201), and the other end is sealed to the differential pressure transmitter.

7. The glove box according to claim 1, characterized in that, The drainage system (3) includes a first drainage branch (301) and a second drainage branch (302). The inlet of the first drainage branch (301) and the inlet of the second drainage branch (302) are both sealed to the drainage port of the box (4). The outlet of the first drainage branch (301) and the outlet of the second drainage branch (302) are both sealed to the inlet of the main drainage pipe. The outlet of the main drainage pipe is sealed to the sewage outlet.

8. The glove box according to claim 7, characterized in that, The drainage system (3) also includes a third manual valve (303) and a micro pump (304); the third manual valve (303) is provided on the first drainage branch (301); and the micro pump (304) is provided on the second drainage branch (302).

9. The glove box according to claim 1, characterized in that, The outer wall of the box (4) is provided with a pipe clamp seat (13), and the drainage system (3) and the waste liquid collection system (2) are respectively fixed on the outer wall of the box (4) through the corresponding pipe clamp seat (13).

10. The glove box according to claim 1, characterized in that, The glove box also includes a frame (5), and the box body (4) is disposed on top of the frame (5).

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