Glove box

Abstract

The invention provides a glove box. The glove box comprises a box body, a sampling system, a waste liquid collecting system and a liquid discharging system, a liquid collecting tank is arranged in an inner cavity of the box body; the sampling system is arranged on the outer side wall of the box body; an inlet of the sampling system is used for being in sealed connection with a reactor irradiation device, and an outlet of the sampling system penetrates through the side wall of the box body and extends to an inner cavity of the box body; the waste liquid collecting system is arranged on the outer side wall of the box body, an inlet of the waste liquid collecting system is used for being connected with a differential pressure transmitter in a sealed mode, and an outlet of the waste liquid collecting system penetrates through the side wall of the box body to be communicated with the liquid collecting groove located in an inner cavity of the box body. The liquid discharging system is connected with a liquid discharging opening in the box body in a sealed mode. Through the arrangement of the sampling system, the waste liquid collecting system and the liquid discharging system, a closed-loop operation is formed in the whole radiochemical analysis and detection process of the radioactivity level, and the situation that a coolant leaks to pollute the working environment and endanger personnel safety is avoided.

Description

Technical Field

[0001] The present application belongs to the technical field of pressurized water reactor in-process irradiation testing, and specifically relates to a glove box. Background Art

[0002] Reactor irradiation test is the only way for nuclear fuel to move from research and development to engineering application. The test safety of the test process is the top priority related to the success or failure of the test. In order to monitor the safety status of the fuel during the reactor irradiation test, the reactor irradiation test includes a water quality testing process. During the operation of the reactor, the primary water coolant of the reactor at the outlet of the test section is introduced into the water sampling glove box through a sampling tube, and the radioactivity level of the water quality is tested by radiochemical analysis. Water sampling analysis is of great significance to ensure the success of the test and the safety of reactor operation.

[0003] The relevant technology of the on-pile irradiation test device requires a sampling tube, two pressure tubes, and two measuring tubes to be led out of the pile, where the sampling tube is used to lead the primary water coolant at the outlet of the test section for radiochemical analysis and monitoring. At present, during the irradiation test operation and daily water sampling operation, there is a problem of coolant leakage and contamination of the working environment. Summary of the invention

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

[0005] In order to solve the above problems, the present application provides a glove box, including a box body, a sampling system, a waste liquid collection system and a liquid drainage system;

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

[0007] The sampling system is arranged on the outer side wall of the box body; the sampling system inlet is used to be sealed and connected with the stack irradiation device, and the sampling system outlet passes through the side wall of the box body and extends to the inner cavity of the box body;

[0008] The waste liquid collection system is arranged on the outer side wall of the box body, the waste liquid collection system inlet is used to be sealed and connected with the differential pressure transmitter, and the waste liquid collection system outlet passes through the box body side wall and communicates with the liquid collection tank located in the inner cavity of the box body;

[0009] The drainage system is sealed and connected to the drainage port on the box body.

[0010] Optionally, the sampling system includes multiple inlet-side sampling branch pipes, a sampling main pipe and an outlet-side sampling branch pipe, the inlet-side sampling branch pipe, the sampling main pipe and the outlet-side sampling branch pipe are respectively arranged on the outer side wall of the box body, at least one of the inlet-side sampling branch pipes is sealedly connected to the inlet-side sampling branch pipe, at least one of the inlet-side sampling branch pipes is sealedly connected to one end of the sampling main pipe, the other end of the sampling main pipe is connected to one end of the outlet-side sampling branch pipe, and the other end of the outlet-side sampling branch pipe passes through the side wall of the box body and extends to the inner cavity of the box body.

[0011] Optionally, the outlet side sampling branch includes a manual sampling branch and an electric sampling branch; the manual sampling branch inlet and the electric sampling branch inlet are respectively sealed and connected to the outlet of the sampling main pipe, and the manual sampling branch outlet and the electric sampling branch outlet respectively 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 arranged on the manual sampling branch pipe; the flow meter and the solenoid valve are arranged on the electric sampling branch pipe.

[0013] Optionally, the waste liquid collection system includes a plurality of connecting pipes, which are sequentially arranged on the outer wall of the box body, at least one differential pressure transmitter is sealedly connected to the connecting pipe inlet, and the connecting pipe outlet passes through the side wall of the box body and is connected to the liquid collection tank located in the inner cavity of the box body.

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

[0015] Optionally, the drainage system includes a first drainage branch and a second drainage branch, the inlet of the first drainage branch and the inlet of the second drainage branch are both sealed connected to the drainage port of the box, the outlet of the first drainage branch and the outlet of the second drainage branch are both sealed connected to the inlet of the drainage main line, and the outlet of the drainage main line is sealed connected 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, a pipe clamp seat is provided on the outer side wall of the box body, and the drainage system and the waste liquid collection system are respectively fixed on the outer side wall of the box body through the corresponding pipe clamp seat.

[0018] Optionally, the glove box further includes a frame, and the box body is arranged on the top of the frame.

[0019] Beneficial Effects

[0020] The glove box provided in the embodiment of the present invention has a sampling system installed on the box body of the glove box for connecting to the stack irradiation device to take water samples, that is, coolant; a waste liquid collection system is installed to collect waste liquid in the exhaust process of the differential pressure transmitter and discharge it into a waste liquid collection tank in the box body; a drainage system is installed to discharge the waste liquid in the waste liquid collection tank in time; in the whole 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. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 For the embodiment of this application Figure 1 AA section view;

[0023] Figure 3 This is a right side view of the glove box of the embodiment of the present application;

[0024] Figure 4 This is a left view of the glove box of the embodiment of the present application;

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

[0026] Figure 6 A top view of the glove box according to an embodiment of the present application;

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

[0028] Figure 8 A side view of a sampling system according to an embodiment of the present application;

[0029] Fig. 9 A schematic diagram of the pipe arrangement of the waste liquid collection system according to an embodiment of the present application;

[0030] Fig.10 This is a front view of the drainage system of an embodiment of the present application;

[0031] Fig.11 It is a side view of the drainage system according to an embodiment of the present application.

[0032] The reference numerals 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-pipe connection; 202-second manual valve;

[0035] 3-liquid discharge system; 301-first liquid discharge branch; 302-second liquid discharge branch; 303-third manual valve; 304-micro pump;

[0036] 4-box; 5-frame; 6-peep window; 7-sealed door; 8-glove hole; 9-rotating touch screen; 10-lighting system; 11-ventilation and filtration system; 12-power box; 13-pipe clamp seat. DETAILED DESCRIPTION

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The preferred embodiments of the present invention are described below in conjunction with 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, according to an embodiment of the present application, a glove box is provided, which has a radiation shielding function, and includes a box body 4, a sampling system 1, a waste liquid collection system 2 and a drainage system 3; the inner cavity of the box body 4 is provided with a liquid collection tank; the sampling system 1 is arranged on the outer wall of the box body 4; the inlet of the sampling system 1 is used to be sealed and connected with the stack 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 arranged on the outer wall of the box body 4, the inlet of the waste liquid collection system 2 is used to be sealed and connected with the differential pressure transmitter, and the outlet of the waste liquid collection system 2 passes through the side wall of the box body 4 and is connected with the liquid collection tank located in the inner cavity of the box body 4; the drainage system 3 is sealed and connected with the drainage port on the box body 4.

[0042] A sampling system 1 is installed on the body 4 of the glove box for connecting with the stack irradiation device to take water samples, that is, coolant, and perform radiochemical analysis on the coolant to detect the radioactivity level; a waste liquid collection system 2 is installed to collect waste liquid from the exhaust process of the differential pressure transmitter and discharge it into the waste liquid collection tank in the body 4; a drainage system 3 is installed to discharge the waste liquid in the waste liquid collection tank in time; during the entire process of radiochemical analysis and detection of radioactivity level, a closed-loop operation is formed to prevent coolant leakage from contaminating the working environment and endangering personnel safety.

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

[0044] Among them, the box body 4 includes an upper side wall, a left side wall and a front side wall; the glove box also includes a peep window 6, a sealed door 7, a glove hole 8, a touch screen 9, a lighting system 10 and a ventilation and filtration system 11; the peep window 6 and the glove hole 8 are respectively arranged on the front side wall, and the peep window 6 is arranged on the upper part of the glove hole 8; the sealed door 7 and the touch screen 9 are respectively arranged on the left side wall, and the touch screen 9 is arranged on the upper part of the sealed door 7; the lighting system 10 and the ventilation and filtration system 11 are arranged on the upper side wall.

[0045] Specifically, the shielding layer of the peep window 6 is made of lead glass, which makes it easy to observe various parts in the box body 4, so as to play a role in early warning.

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

[0047] The ventilation and filtering system 11 is used to remove aerosols carried in the air in the box 4 through a filter arranged at the exhaust port.

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

[0049] In another embodiment, Figure 7 and Figure 8 As shown, the sampling system 1 includes a plurality of inlet sampling branches 101, a sampling main pipe 102 and an outlet sampling branch pipe, the inlet sampling branch pipe 101, the sampling main pipe 102 and the outlet sampling branch pipe are respectively arranged on the outer side wall of the box body 4, at least one with-pile irradiation device is sealedly connected to the inlet sampling branch pipe 101, at least one inlet sampling branch pipe 101 is sealedly connected to one end of the sampling main pipe 102, the other end of the sampling main pipe 102 is sealedly connected to one end of the outlet sampling branch pipe, and the other end of the outlet sampling branch pipe passes through the side wall of the box body 4 and extends to the inner cavity of the box body 4. Through the design of the sampling system 1, the water sampling operation process is shortened, and the radiation dose level of radioactive substances on the hands of water sampling operators is reduced.

[0050] Specifically, in this embodiment, there are four inlet-side sampling branch pipes 101, each of which is sealedly connected to a corresponding with-stack irradiation device, and a fourth manual valve 107 is provided between the two. By adjusting the switch of the fourth manual valve 107, the connection state between the with-stack irradiation device and the inlet-side sampling branch pipe 101 is adjusted to sample and detect the radiation level of the coolant discharged from the outlet of the corresponding with-stack 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 sealed and connected through a four-way connection, the other end of the first main pipe is provided with a first three-way connection, and the other end of the second main pipe is provided with a second three-way connection, wherein two inlet-side sampling branch pipes 101 are respectively sealed and connected to the first three-way connection, and the other two inlet-side sampling branch pipes 101 are respectively sealed and connected to the four-way connection and the second three-way connection. 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 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 and connected 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 respectively extend through the side wall of the box body 4 to the inner cavity of the box body 4. The electric sampling branch pipe 103 improves the convenience and safety of use; the manual sampling branch pipe 104 realizes the sampling function when the electric sampling branch pipe 103 fails.

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

[0054] In another embodiment, the outlet sampling branch pipe further includes a first manual valve, a solenoid valve 106 and a flow meter 105; the first manual valve is arranged on the manual sampling branch pipe 104; the flow meter 105 and the solenoid valve 106 are arranged 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 in the automatic sampling branch pipe 103, so as to timely find out whether the electric sampling branch pipe 103 has a leakage failure and affects the surrounding environment.

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

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

[0057] The present application can effectively avoid long-term close contact between personnel and reactor coolant during the water sampling process, thereby reducing the radiation dose to personnel, and solves the increased level of environmental contamination caused by coolant leakage during the exhaust process of the differential pressure transmitter through the waste liquid collection system 2. The waste liquid collection system 2 is used to collect waste liquid leaked during the exhaust process of the differential pressure transmitter, effectively reducing the radiation safety risks to personnel and the risk of environmental contamination.

[0058] Specifically, in this embodiment, Figure 5 and Fig. 9 As shown, the waste liquid collection system 2 includes eight connecting pipes 201, which are arranged from left to right in sequence, and the inlets of the connecting pipes 201 are raised in sequence to avoid interference at the inlets of the connecting pipes 201; eight through holes are opened on the rear end side wall of the box body 4, and the eight through holes are located on the same horizontal line, and the outlets of the eight connecting pipes 201 are respectively connected to the liquid collection tank in the inner cavity of the box body 4 through the corresponding through holes.

[0059] In another embodiment, the waste liquid collection system 2 further comprises a second manual valve 202, one end of the second manual valve 202 is sealedly connected to the inlet of the pipe 201, and the other end is sealedly connected to the differential pressure transmitter. The second manual valve 202 is used to connect or close the differential pressure transmitter to 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 inlet of the first drainage branch 301 and the inlet of the second drainage branch 302 are both sealed and connected 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 and connected to the inlet of the drainage main pipe, and the outlet of the drainage main pipe is sealed and connected to the sewage outlet. The waste liquid in the box 4 is discharged from the box 4 in time by the first drainage branch 301 and the second drainage branch 302 arranged in parallel, so as to avoid environmental pollution caused by leakage or overflow of the waste liquid and endanger the health of the operator.

[0061] In another embodiment, Fig.10 and Fig.11 As shown, the drainage system 3 further 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. By providing the third manual valve 303 and the micro pump 304, the first drainage branch 301 becomes a self-draining branch, and the second drainage branch becomes a forced drainage branch; when the waste liquid in the box 4 is forced to be emptied in an emergency due to excessive water volume or emergency, the second drainage branch 302 is activated for drainage.

[0062] In another embodiment, a tube clamp seat 13 is provided on the outer side wall of the box body 4, and the drainage system 3 and the waste liquid collection system 2 are respectively fixed on the outer side wall of the box body 4 through the corresponding tube clamp seats 13. The setting of the tube clamp seat 13 realizes the fixing of the drainage system 3 and the waste liquid collection system 2 on the outer side wall of the box body 4.

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

[0064] In another embodiment, the glove box further comprises a frame 5, and the box body 4 is arranged on the 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 frame 5 below the box body 4 to realize power supply of the system.

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

[0067] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0068] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A glove box, characterized in that: include: A box body (4), wherein the inner cavity of the box body (4) is provided with a liquid collecting tank; A sampling system (1), wherein the sampling system (1) is arranged on the outer wall of the box (4); the inlet of the sampling system (1) is used for sealing connection with the stack irradiation device, and the outlet of the sampling system (1) passes through the side wall of the box (4) and extends to the inner cavity of the box (4); A waste liquid collection system (2), wherein the waste liquid collection system (2) is arranged on the outer wall of the box (4), the inlet of the waste liquid collection system (2) is used to be sealed and connected to the differential pressure transmitter, and the outlet of the waste liquid collection system (2) passes through the side wall of the box (4) and is connected to the liquid collection tank located in the inner cavity of the box (4); A liquid discharge system (3), wherein the liquid discharge system (3) is sealedly connected to a liquid discharge port on the box body (4).

2. The glove box according to claim 1, characterized in that: The sampling system (1) comprises a plurality of inlet-side sampling branch pipes (101), a sampling main pipe (102) and an outlet-side sampling branch pipe. The inlet-side sampling branch pipe (101), the sampling main pipe (102) and the outlet-side sampling branch pipe are respectively arranged on the outer wall of the box body (4). At least one of the in-pile irradiation devices is sealedly connected to the inlet-side sampling branch pipe (101). At least one of the inlet-side sampling branch pipes (101) is sealedly connected to one end of the sampling main pipe (102). The other end of the sampling main pipe (102) is sealedly connected to one end of the outlet-side sampling branch pipe. The other end of the outlet-side sampling branch pipe passes through the side wall of the box body (4) and extends to the inner cavity of the box body (4).

3. The glove box according to claim 2, characterized in that: The outlet-side sampling branch pipe comprises 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 and connected to the outlet of the sampling main pipe (102); the outlet of the manual sampling branch pipe (104) and the outlet of the electric sampling branch pipe (103) respectively pass through the side wall of the box body (4) and extend to the inner cavity of the box body (4).

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

5. The glove box according to claim 1, characterized in that: The waste liquid collection system (2) comprises a plurality of connecting pipes (201), which are arranged in sequence on the outer wall of the box (4), at least one of the differential pressure transmitters is sealedly connected to the inlet of the connecting pipe (201), and the outlet of the connecting pipe (201) passes through the side wall of the box (4) and is connected to the liquid collection tank located in the inner cavity of the box (4).

6. The glove box according to claim 5, characterized in that: The waste liquid collection system (2) further comprises a second manual valve (202), one end of the second manual valve (202) being sealedly connected to the inlet of the connecting pipe (201), and the other end of the second manual valve (202) being sealedly connected to the differential pressure transmitter.

7. The glove box according to claim 1, characterized in that: The drainage system (3) comprises 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 sealedly connected 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 sealedly connected to the inlet of the drainage main pipe; and the outlet of the drainage main pipe is sealedly connected to the sewage outlet.

8. The glove box according to claim 7, characterized in that: The liquid discharge system (3) further comprises a third manual valve (303) and a micro pump (304); the third manual valve (303) is arranged on the first liquid discharge branch (301); and the micro pump (304) is arranged on the second liquid discharge branch (302).

9. The glove box according to claim 1, characterized in that: The outer wall of the box body (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 body (4) through the corresponding pipe clamp seats (13).

10. The glove box according to claim 1, characterized in that: The glove box further comprises a frame (5), and the box body (4) is arranged on the top of the frame (5).

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