CN112992395B - Nuclear power plant radioactive waste resin transfer system and method - Google Patents
Nuclear power plant radioactive waste resin transfer system and method Download PDFInfo
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- CN112992395B CN112992395B CN202110267055.9A CN202110267055A CN112992395B CN 112992395 B CN112992395 B CN 112992395B CN 202110267055 A CN202110267055 A CN 202110267055A CN 112992395 B CN112992395 B CN 112992395B
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/002—Containers for fluid radioactive wastes
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/06—Details of, or accessories to, the containers
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/06—Details of, or accessories to, the containers
- G21F5/12—Closures for containers; Sealing arrangements
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- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention relates to the technical field of waste resin transfer, in particular to a nuclear power plant radioactive waste resin transfer system and a nuclear power plant radioactive waste resin transfer method. A nuclear power plant radioactive waste resin transfer system comprises a resin storage device, a resin storage device and a transfer device, wherein the resin storage device is used for storing waste resin; a first control valve having a valve inlet connected to a waste resin outlet of the resin storage device through a pipe; the inlet of the power pump is connected with the valve outlet of the first control valve through a pipeline; the inlet of the second control valve is connected with the outlet of the pump of the power pump through a pipeline; a waste resin inlet of the transfer trolley is connected with a valve outlet of the second control valve through a pipeline; and a third control valve, wherein a valve inlet is connected with a water outlet of the transfer trolley through a pipeline. The system and the method of the invention arrange the power pump on the resin pumping pipeline, and the power pump is not directly closed after the pumping of the waste resin is finished, but is closed after the power pump is washed for a period of time by the desalted water, thereby effectively avoiding the power pump from being blocked when being started next time.
Description
Technical Field
The invention relates to the technical field of waste resin transfer, in particular to a nuclear power plant radioactive waste resin transfer system and a nuclear power plant radioactive waste resin transfer method.
Background
Nuclear power plants typically use resin/activated carbon/zeolite for the treatment of radioactive wastewater, which when spent, requires transport from the nuclear island system to a waste resin treatment plant for post-treatment. In the prior art, a pipeline is generally directly adopted to convey waste resin, but the following problems exist: 1) the occupied space is large, and the requirement of pipeline arrangement is difficult to meet; 2) because the viscosity of the waste resin is higher, when the pipeline is arranged too long or the pipe bending section is too much, the waste resin is not easy to transmit, and the blockage is easy to cause; 3) because the waste resin has radioactivity, radiation protection measures need to be taken for the transmission pipeline, otherwise, the radiation subarea of a factory building is influenced, and the work of operators is influenced. For this reason, application number is CN 201821612506.8's utility model discloses a useless resin transfer device of nuclear power plant adopts useless resin to transport the container, has realized the function that useless resin passes through to be deposited and transport. But power pump setting among this utility model is on the water pipe, and the mode through the flushing water is transferred waste resin to waste resin and is transported the container in for the pumping of resin is sent inefficiency, pumping effect not good. If directly with the power pump setting on useless resin transport pipe, then when the pump is stopped to the resin transfer pump, a large amount of resins can be piled up in the entrance of resin transfer pump for the resin transfer pump blocks up the card and dies when starting the pump next time, and then again will influence the pumping efficiency and the pumping effect of resin.
Disclosure of Invention
The invention provides a nuclear power plant radioactive waste resin transfer system and a nuclear power plant radioactive waste resin transfer method, which are high in transfer efficiency and good in transfer effect, aiming at the problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a nuclear power plant radioactive spent resin transfer system comprises
A resin storage device for storing waste resin;
a first control valve having a valve inlet connected to a waste resin outlet of the resin storage device through a pipe;
the inlet of the power pump is connected with the valve outlet of the first control valve through a pipeline;
the inlet of the second control valve is connected with the outlet of the pump of the power pump through a pipeline;
a waste resin inlet of the transfer trolley is connected with a valve outlet of the second control valve through a pipeline;
a third control valve, the valve inlet is connected with the water outlet of the transfer trolley through a pipeline;
a fourth control valve, a valve inlet is connected with a valve outlet of the third control valve through a pipeline, and a valve outlet is connected with a waste resin inlet of the resin storage device through a pipeline;
a fifth control valve, wherein a valve inlet is connected with the demineralized water tank through a pipeline, and a valve outlet is connected with a pump inlet of the power pump through a pipeline;
a valve inlet of the sixth control valve is connected with the pump outlet of the power pump through a pipeline, and a valve outlet of the sixth control valve is connected with the valve inlet of the fourth control valve through a pipeline;
the inside pressure sensor and the level sensor of being equipped with of transport dolly, transport dolly inside is located water outlet department is equipped with filter equipment.
The power pump is arranged on the resin pumping pipeline instead of the water pumping pipeline, so that the resin pumping efficiency and the pumping effect are effectively improved, the power pump is not directly closed after the waste resin pumping is finished, but is closed after the power pump is flushed for a period of time through desalted water, the power pump can be effectively prevented from being blocked when being started next time, and the resin pumping efficiency and the pumping effect of the waste resin transfer system are further improved.
Preferably, the resin storage device is provided with a resin stirring member; the resin stirring part comprises a stirring part arranged at the inner bottom of the resin storage device and a stirring part driving motor connected with the stirring part and arranged at the outer bottom of the resin storage device.
Preferably, the stirring member includes
Rotating the main rod;
the stirring body, the axial end with rotate the mobile jib and be connected, just the stirring body by it with it rotates mobile jib link and sets up to its free end slant downwards.
Preferably, the stirring body is provided in a spiral shape.
Preferably, the filter device comprises
One axial end of the filter shell is provided with a threaded connector detachably connected with the interior of the transfer trolley;
the filter net rack, with the inside dismantlement formula of filter shell is connected, just filter shell inside is equipped with at least three filter net rack.
Preferably, the edge of the peripheral side of the filter screen frame is provided with a limiting bulge, and the limiting bulge is provided with a threaded connecting hole along the radial direction; an axial limiting groove which is assembled and connected with the limiting bulge is formed in the inner peripheral side of the filtering shell, and a butt joint hole which is communicated with the axial limiting groove is formed in the filtering shell along the radial direction; the butt joint hole is connected with the threaded connection hole through a limiting screw.
Preferably, the end part of the filtering shell shaft is provided with a circle of sealing groove on the peripheral side of the threaded connector, and a sealing ring is arranged in the sealing groove.
Preferably, the system also comprises a remote monitoring module; the remote monitoring module comprises
The control platform is connected with the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve, the sixth control valve, the power pump, the pressure sensor and the level sensor and is used for controlling the switches of the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve, the sixth control valve and the power pump and acquiring detection signals of the pressure sensor and the level sensor;
the camera device is used for shooting the resin transfer process of the transfer trolley;
and the display device is connected with the camera device and used for playing the resin transfer process of the transfer trolley.
Preferably, it further comprises
And the timing unit is connected with the third control valve and the fifth control valve and is used for calculating the current opening time of the third control valve and the fifth control valve.
A method for transferring the radioactive waste resin in nuclear power plant includes such steps as
L1 collects waste resin generated during operation of the nuclear power plant through a resin storage device;
l2 pumps the waste resin in the resin storage device to the transfer trolley; specifically comprises
S21, butting the transfer trolley with the waste resin pumping pipeline and the water pumping pipeline;
s22, closing the third control valve, the fourth control valve, the fifth control valve and the sixth control valve, opening the first control valve and the second control valve, opening the power pump to pump the waste resin in the resin storage device into the transfer trolley, and entering L2 if the pressure sensor detects that the pressure value in the transfer trolley reaches a preset pressure value; if the level sensor detects that the inside of the transfer trolley is full of resin, the L3 is entered;
s23, closing the second control valve and the fifth control valve, opening the first control valve, the third control valve, the sixth control valve and the fourth control valve to pump the water in the transfer trolley back to the resin storage device, and returning to L1 when the time of the third control valve is opened for the first preset time value;
s24 closing the first, second, and third control valves, opening the fifth, sixth, and fourth control valves to pump the demineralized water in the demineralized water tank to the resin storage device, and closing the power pump, the fifth, sixth, and fourth control valves when the fifth control valve is opened for a second preset time value;
s25, detaching the transfer trolley from the waste resin pumping pipeline and the water pumping pipeline;
l3 transfers the waste resin to the waste resin treatment plant via transfer carts.
The method of the invention arranges the power pump on the resin pumping pipeline instead of the water pumping pipeline, thereby effectively improving the resin pumping efficiency and the pumping effect, and the power pump is not directly closed after the waste resin pumping is finished, but is closed after the power pump is flushed for a period of time by the desalted water, thereby effectively avoiding the power pump from being blocked when the power pump is started next time, and further improving the resin pumping efficiency and the pumping effect of the waste resin transfer system of the invention.
Advantageous effects
The system and the method of the invention arrange the power pump on the resin pumping pipeline instead of the water pumping pipeline, thereby effectively improving the resin pumping efficiency and the pumping effect, and the power pump is not directly closed after the waste resin pumping is finished, but is closed after the power pump is flushed for a period of time by desalted water, thereby effectively avoiding the power pump from being blocked when being started next time, and further improving the resin pumping efficiency and the pumping effect of the waste resin transfer system of the invention.
Drawings
FIG. 1 is a schematic structural diagram of a nuclear power plant radioactive spent resin transfer system according to the present invention;
FIG. 2 is a schematic view showing the structure of a resin stirring member according to the present invention;
FIG. 3 is a schematic structural view of a stirring member of the present invention;
FIG. 4 is a schematic view of the structure of the filter device of the present invention;
FIG. 5 is a schematic structural view of a screen frame of the present invention;
FIG. 6 is a schematic view of the construction of the filter housing of the present invention;
fig. 7 is a schematic view of another perspective of the filter housing of the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in figure 1, the invention discloses a power plant radioactive waste resin transfer system which comprises a resin storage device 1, a first control valve 2, a power pump 3, a second control valve 4, a transfer trolley 5, a third control valve 6, a fourth control valve 7, a fifth control valve 8 and a sixth control valve 9. The transfer trolley 5 is provided with a male plug, and the end parts of the pipelines of the second control valve 4 and the third control valve 6 are provided with female plugs which are matched and connected with the male plug.
The resin storage device 1 is used for storing waste resin, and the resin storage device 1 can be provided in plurality according to actual use requirements. The valve import of first control valve 2 pass through the pipeline with resin storage device 1's useless resin exit linkage, power pump 3's pump import pass through the pipeline with first control valve 2's valve exit linkage, second control valve 4's valve import pass through the pipeline with power pump 3's pump exit linkage, the useless resin import of transport dolly 5 pass through the pipeline with second control valve 4's valve exit linkage, the valve import of third control valve 6 pass through the pipeline with transport dolly 5's water exit linkage, the valve import of fourth control valve 7 pass through the pipeline with the valve exit linkage of third control valve 6, the valve export pass through the pipeline with resin storage device 1's useless resin entry linkage, the valve import of fifth control valve 8 pass through the pipeline and be connected with the demineralized water jar, the valve export pass through the pipeline with power pump 3's pump entrance linkage, the valve import of sixth control valve 9 pass through the pump export pipeline with power pump 3's connection, The valve outlet is connected to the valve inlet of the fourth control valve 7 via a conduit. And a pressure sensor 10 and a level sensor 11 are arranged inside the transfer trolley 5 and used for detecting the internal pressure of the transfer trolley 5 and the height of the resin. The inside of the transfer trolley 5 is positioned at the water outlet, and a filtering device 12 is arranged at the water outlet, so that the resin is prevented from being taken out when water is pumped back.
In the specific working process, the third control valve 6, the fourth control valve 7, the fifth control valve 8 and the sixth control valve 9 are closed, the first control valve 2 and the second control valve 4 are opened, and the power pump 3 is opened to pump the waste resin in the resin storage device 1 into the transfer trolley 5. If the pressure sensor 10 detects that the pressure value in the transfer trolley 5 reaches a preset pressure value, the second control valve 4 and the fifth control valve 8 are closed, the first control valve 2, the third control valve 6, the sixth control valve 9 and the fourth control valve 7 are opened to pump the water in the transfer trolley 5 back to the resin storage device 1, and when the third control valve 6 is opened for the second time, the waste resin pumping operation is carried out again. And repeating the steps until the level sensor 11 detects that the resin in the transfer trolley 5 is full, closing the first control valve 2, the second control valve 4 and the third control valve 6, opening the fifth control valve 8, the sixth control valve 9 and the fourth control valve 7 to pump the desalted water in the desalted water tank to the resin storage device 1, and closing the power pump 3, the fifth control valve 8, the sixth control valve 9 and the fourth control valve 7 when the fifth control valve 8 is opened for the second preset time value so as to finish the resin transfer operation of the transfer trolley 5.
The power pump 3 is arranged on the resin pumping pipeline instead of the water pumping pipeline, so that the resin pumping efficiency and the pumping effect are effectively improved, the power pump 3 is not directly closed after the waste resin pumping is finished, the power pump 3 is flushed for a period of time by using desalted water and then closed, the power pump 3 can be effectively prevented from being blocked when being started next time, and the resin pumping efficiency and the pumping effect of the waste resin transfer system are further improved.
As shown in fig. 2 and 3, the resin storage apparatus 1 is provided with a resin stirring member 13. The resin stirring member 13 includes a stirring member provided at the inner bottom of the resin storage device 1, and a stirring member driving motor connected to the stirring member and provided at the outer bottom of the resin storage device 1. The resin stirring piece 13 can uniformly mix the waste resin particles in the resin storage device 1 with water (approximately 1: 1 ratio), which is beneficial to pumping the resin mixture, and further improves the resin pumping efficiency and the resin pumping effect of the invention. If the stirring member is not provided, the waste resin particles are mostly deposited on the bottom of the resin storage apparatus 1, and the pumping force of the power pump 3 mainly acts on the deposited waste resin particles, making the resin transportation difficult.
The stirring component comprises a rotating main rod 13-1 and a stirring body 13-2. The axial end of the stirring body 13-2 is connected with the rotating main rod 13-1, and the stirring body 13-2 is obliquely arranged downwards from the connecting end of the stirring body with the rotating main rod 13-1 to the free end of the stirring body. The stirring body 13-2 is arranged obliquely downwards, which is beneficial to fully stirring the waste resin particles at the bottom in the resin storage device 1. The stirring body 13-2 is spirally arranged, and the spiral stirring body 13-2 can drive the mixture to spirally rotate, so that the stirring effect of the waste resin particles is improved again.
As shown in fig. 4 to 7, the filter device 12 includes a filter housing 12-1 and a filter frame 12-3. The axial one end of filtering shell 12-1 be equipped with the threaded connection head 12-2 of the inside dismantlement formula of transport dolly 5 is connected, filtering net rack 12-3 with the inside dismantlement formula of filtering shell 12-1 is connected, just it is equipped with at least three to filter the inside filtering net rack 12-3 that is equipped with of filtering shell 12-1. The filtering device 12 is convenient to disassemble and assemble and convenient to maintain, and water can be filtered through the multi-layer filtering net rack 12-3 during pumping back, so that waste resin particles can be effectively prevented from being pumped back to the resin storage device 1.
The periphery of the filter screen frame 12-3 is provided with a limiting bulge 12-4, and the limiting bulge 12-4 is provided with a threaded connecting hole 12-5 along the radial direction. The inner peripheral side of the filter shell 12-1 is provided with an axial limiting groove 12-6 which is assembled and connected with the limiting bulge 12-4, the filter shell 12-1 is provided with a butt joint hole 12-7 which is communicated with the axial limiting groove 12-6 along the radial direction, and the butt joint hole 12-7 is connected with the threaded connection hole 12-5 through a limiting screw.
When the filtering device 12 is assembled, the limiting bulges 12-4 of the filtering net rack 12-3 are aligned with the axial limiting grooves 12-6 of the filtering shell 12-1, then the filtering net rack 12-3 is moved to a proper position along the axial direction, the threaded connecting holes 12-5 of the filtering net rack 12-3 are just aligned with the corresponding butting holes 12-7, and then the threaded connecting holes 12-5 are assembled and connected with the butting holes 12-7 through limiting screws so as to enable the filtering net rack 12-3 to be fixedly connected with the filtering shell 12-1. Finally, the other screen frame 12-3 is installed in the same manner. The filter screen frame 12-3 and the filter housing 12-1 of the structure make the assembly and disassembly of the filter device 12 very convenient.
The end part of the shaft of the filtering shell 12-1 is provided with a circle of sealing groove around the threaded connector 12-2, a sealing ring 12-8 is arranged in the sealing groove, and the arrangement of the sealing ring 12-8 can improve the connection sealing property of the filtering device 12 and the transfer trolley 5, so that the water pumping effect is improved again.
The invention also comprises a remote monitoring module. The remote monitoring module comprises a control platform, a camera device and a display device. The control platform is connected with the first control valve 2, the second control valve 4, the third control valve 6, the fourth control valve 7, the fifth control valve 8, the sixth control valve 9, the power pump 3, the pressure sensor 10 and the level sensor 11, and is used for controlling the on and off of the first control valve 2, the second control valve 4, the third control valve 6, the fourth control valve 7, the fifth control valve 8, the sixth control valve 9 and the power pump 3 and acquiring detection signals of the pressure sensor 10 and the level sensor 11.
The camera device is used for shooting the resin transfer process of the transfer trolley 5. And the display device is connected with the camera device and is used for playing the resin transfer process of the transfer trolley 5.
The control platform and the display device are arranged in the control room, and workers can watch and control the resin transferring process of the transfer trolley 5 in the control room. The control valves and the power pump 3 can be manually opened and closed, or can be automatically controlled by a set control program. Due to the arrangement of the remote monitoring module, workers do not need to control the transfer trolley 5 on site to transfer resin, the radiation to the workers is reduced, and the safety performance of the system is improved.
In addition, the invention further comprises a timing unit, wherein the timing unit is connected with the third control valve 6 and the fifth control valve 8 and is used for calculating the current opening time of the third control valve 6 and the fifth control valve 8. When the timing unit counts that the time length of the third control valve 6 when opened reaches a first preset time value, a worker is informed to carry out the next operation or the system automatically enters the next operation; and when the timing unit counts that the time of opening the fifth control valve 8 reaches a second preset time value, the working personnel is informed to carry out the next operation or the system automatically enters the next operation.
The invention also discloses a nuclear power plant radioactive waste resin transferring method for transferring the waste resin from the waste resin production plant to the waste resin treatment plant for post-treatment, which comprises the following steps
L1 collects the waste resin that produces in the nuclear power plant operation process through resin storage device 1, and resin storage device 1 can set up a plurality ofly according to actual demand, and the concrete distribution position of resin storage device 1 also can rationally select according to actual conditions.
L2 pumps the waste resin in the resin storage device 1 to the transfer trolley 5; specifically comprises
S21, the transfer trolley 5 is butted with a waste resin pumping pipeline and a water pumping pipeline. Resin storage device 1 is connected with waste resin pumpingout pipeline and water pumpingout pipeline, and waste resin pumpingout pipeline's free end is equipped with the female head of first grafting, and water pumpingout pipeline's free end is equipped with the female head of second grafting, the waste resin import of transporting dolly 5 be equipped with the public head of first grafting that the female head cooperation of first grafting is connected, the water export of transporting dolly 5 be equipped with the public head of second grafting that the female head cooperation of second grafting is connected, the concrete structure of the public head of first grafting, the female head of second grafting, the public head of first grafting, the public head of second grafting can adopt prior art. The step is mainly to connect the first inserting female head with the first inserting male head and connect the second inserting female head with the second inserting male head so as to realize the butt joint and communication of the waste resin pumping pipeline and the water pumping pipeline with the transfer trolley 5.
S22, closing the third control valve 6, the fourth control valve 7, the fifth control valve 8 and the sixth control valve 9, opening the first control valve 2 and the second control valve 4, opening the power pump 3 to pump the waste resin in the resin storage device 1 into the transfer trolley 5, and entering L2 if the pressure sensor 10 detects that the pressure value in the transfer trolley 5 reaches a preset pressure value (namely the resin-water mixture reaches a set liquid level value); if the level sensor 11 detects that the inside of the transfer trolley 5 is full of resin (i.e. the deposited resin particles reach the set level), L3 is entered.
S23 is used for closing the second control valve 4 and the fifth control valve 8, opening the first control valve 2, the third control valve 6, the sixth control valve 9 and the fourth control valve 7 to pump the water in the transfer trolley 5 back to the resin storage device 1, and returning to L1 when the time length of the third control valve 6 which is opened for the second time reaches a first preset time value.
S24 closes the first, second and third control valves 2, 4, 6, opens the fifth, sixth and fourth control valves 8, 9, 7 to pump the demineralized water in the demineralized water tank to the resin storage device 1, and closes the power pump 3, fifth, sixth and fourth control valves 8, 9 and 7 when the fifth control valve 8 is opened for a second preset time value. In steps S22 to S24, the waste resin in the resin storage device 1 is pumped to the transfer cart 5 by controlling the opening and closing of the control valves and the power pump 3. According to the method, the power pump 3 is arranged on the resin pumping pipeline instead of the water pumping pipeline, so that the waste resin pumping efficiency and the pumping effect are effectively improved, the power pump 3 is not directly closed after the waste resin pumping is finished, the power pump 3 is closed after being flushed for a period of time through desalted water, the power pump 3 can be effectively prevented from being blocked when being started next time, and the resin pumping efficiency and the pumping effect of the waste resin transfer system are further improved.
In addition, the invention can control the switch of each control valve and the power pump 3 through the control platform, and obtain the detection signals of the pressure sensor 10 and the level sensor 11. The invention can comprise a plurality of transfer trolleys 5, such as transfer trolley No. 1, transfer trolley No. 2 and the like, when the transfer trolley No. 1 is in butt joint with the waste resin pumping pipeline and the water pumping pipeline, the power supply of the transfer trolley No. 1 can be turned on, the power supply supplies power to the pressure sensor 10 and the level sensor 11, the pressure sensor 10 and the level sensor 11 start to work after being electrified, and detected signals are sent to the control platform in a wireless mode.
S25 separating the transfer trolley 5 from the waste resin pumping pipeline and the water pumping pipeline. The first inserting female head and the first inserting male head are detached, and the second inserting female head and the second inserting male head are detached, so that the waste resin pumping pipeline, the water pumping pipeline and the transfer trolley 5 are detached.
L3 transfers the waste resin to the waste resin treatment plant through the transfer cart 5 for post-treatment of the waste resin, and the specific treatment method can adopt the prior art.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.
Claims (9)
1. The utility model provides a nuclear power plant's radioactivity spent resin transfer system which characterized in that: comprises that
A resin storage device (1) for storing waste resin; the resin storage device (1) is provided with a resin stirring piece (13);
a first control valve (2) having a valve inlet connected to a waste resin outlet of the resin storage device (1) via a pipe;
the inlet of the power pump (3) is connected with the valve outlet of the first control valve (2) through a pipeline;
the inlet of the second control valve (4) is connected with the outlet of the power pump (3) through a pipeline;
a transfer trolley (5), wherein a waste resin inlet of the transfer trolley is connected with a valve outlet of the second control valve (4) through a pipeline;
a third control valve (6), the inlet of which is connected with the water outlet of the transfer trolley (5) through a pipeline;
a fourth control valve (7) having a valve inlet connected to a valve outlet of the third control valve (6) via a pipe and a valve outlet connected to a waste resin inlet of the resin storage device (1) via a pipe;
a fifth control valve (8), wherein the inlet of the valve is connected with the demineralized water tank through a pipeline, and the outlet of the valve is connected with the pump inlet of the power pump (3) through a pipeline;
a sixth control valve (9), wherein a valve inlet is connected with a pump outlet of the power pump (3) through a pipeline, and a valve outlet is connected with a valve inlet of the fourth control valve (7) through a pipeline;
a pressure sensor (10) and a level sensor (11) are arranged in the transfer trolley (5), and a filtering device (12) is arranged in the transfer trolley (5) and positioned at the water outlet;
and the timing unit is connected with the third control valve (6) and the fifth control valve (8) and is used for calculating the current opening time of the third control valve (6) and the fifth control valve (8).
2. The nuclear power plant radioactive spent resin transfer system of claim 1, wherein: the resin stirring piece (13) comprises a stirring part arranged at the inner bottom of the resin storage device (1) and a stirring part driving motor connected with the stirring part and arranged at the outer bottom of the resin storage device (1).
3. The nuclear power plant radioactive spent resin transfer system of claim 2, wherein: the stirring part comprises
The main rod (13-1) is rotated;
and the axial end of the stirring body (13-2) is connected with the rotating main rod (13-1), and the stirring body (13-2) is obliquely and downwards arranged from the connecting end of the stirring body and the rotating main rod (13-1) to the free end of the stirring body.
4. The nuclear power plant radioactive spent resin transfer system of claim 3, wherein: the stirring body (13-2) is spirally arranged.
5. The nuclear power plant radioactive spent resin transfer system of claim 1, wherein: the filter device (12) comprises
One axial end of the filtering shell (12-1) is provided with a threaded connector (12-2) detachably connected with the interior of the transfer trolley (5);
the filtering net rack (12-3) is detachably connected with the inside of the filtering shell (12-1), and at least three filtering net racks (12-3) are arranged inside the filtering shell (12-1).
6. The nuclear power plant radioactive spent resin transfer system according to claim 5, wherein: the periphery side edge of the filter screen frame (12-3) is provided with a limiting bulge (12-4), and the limiting bulge (12-4) is radially provided with a threaded connecting hole (12-5); an axial limiting groove (12-6) which is assembled and connected with the limiting protrusion (12-4) is formed in the inner peripheral side of the filtering shell (12-1), and a butt joint hole (12-7) which is communicated with the axial limiting groove (12-6) is formed in the filtering shell (12-1) in the radial direction; the butt joint hole (12-7) is connected with the threaded connecting hole (12-5) through a limiting screw.
7. The nuclear power plant radioactive spent resin transfer system of claim 5, wherein: the shaft end part of the filter shell (12-1) is provided with a circle of sealing groove on the peripheral side of the threaded connector (12-2), and a sealing ring (12-8) is arranged in the sealing groove.
8. The nuclear power plant radioactive spent resin transfer system according to claim 1, wherein: the system also comprises a remote monitoring module; the remote monitoring module comprises
The control platform is connected with the first control valve (2), the second control valve (4), the third control valve (6), the fourth control valve (7), the fifth control valve (8), the sixth control valve (9), the power pump (3), the pressure sensor (10) and the level sensor (11) and is used for controlling the on-off of the first control valve (2), the second control valve (4), the third control valve (6), the fourth control valve (7), the fifth control valve (8), the sixth control valve (9) and the power pump (3) and obtaining detection signals of the pressure sensor (10) and the level sensor (11)
The camera device is used for shooting the resin transferring process of the transfer trolley (5);
and the display device is connected with the camera device and used for playing the resin transfer process of the transfer trolley (5).
9. A method for transferring spent radioactive resin from a nuclear power plant, which comprises the steps of using the system for transferring spent radioactive resin from a nuclear power plant according to any one of claims 1 to 8, wherein: comprises the steps of
L1 collects waste resin generated in the operation process of a nuclear power plant through a resin storage device (1);
l2 pumps the waste resin in the resin storage device (1) to a transfer trolley (5); specifically comprises
S21, butting the transfer trolley (5) with the waste resin pumping pipeline and the water pumping pipeline;
s22, closing the third control valve (6), the fourth control valve (7), the fifth control valve (8) and the sixth control valve (9), opening the first control valve (2) and the second control valve (4), opening the power pump (3) to pump the waste resin in the resin storage device (1) to the inside of the transfer trolley (5), and entering S23 if the pressure sensor (10) detects that the pressure value in the inside of the transfer trolley (5) reaches a preset pressure value; if the level sensor (11) detects that the resin inside the transfer trolley (5) is full, the S24 is entered;
s23, closing the second control valve (4) and the first control valve (2), opening the fifth control valve (8), the third control valve (6), the sixth control valve (9) and the fourth control valve (7) to pump the water in the transfer trolley (5) back to the resin storage device (1), and returning to S22 when the second opening time of the third control valve (6) reaches a first preset time value;
s24, closing the first control valve (2), the second control valve (4), the third control valve (6), opening the fifth control valve (8), the sixth control valve (9), the fourth control valve (7) to pump the desalted water in the desalted water tank to the resin storage device (1), and closing the power pump (3), the fifth control valve (8), the sixth control valve (9) and the fourth control valve (7) when the secondary opening time of the fifth control valve (8) reaches a second preset time value;
s25, separating the transfer trolley (5) from the waste resin pumping pipeline and the water pumping pipeline;
l3 transfers the waste resin to a waste resin treatment plant by means of a transfer cart (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110267055.9A CN112992395B (en) | 2021-03-11 | 2021-03-11 | Nuclear power plant radioactive waste resin transfer system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110267055.9A CN112992395B (en) | 2021-03-11 | 2021-03-11 | Nuclear power plant radioactive waste resin transfer system and method |
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| CN112992395A CN112992395A (en) | 2021-06-18 |
| CN112992395B true CN112992395B (en) | 2022-09-30 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101385667B1 (en) * | 2013-01-23 | 2014-04-21 | (주)대우건설 | System and method for transfering and treating radioactive spent resin |
| CN206868036U (en) * | 2017-06-23 | 2018-01-12 | 中国核动力研究设计院 | The hydraulic agitator taken is returned for radioactive spent resin |
| CN209056294U (en) * | 2018-09-30 | 2019-07-02 | 中广核工程有限公司 | Nuclear power plant's spent resin transfer device |
| CN110411543B (en) * | 2019-07-09 | 2020-12-04 | 江苏中海华核环保有限公司 | Metering equipment for temporarily storing radioactive waste resin and capable of adjusting proportion of water to resin |
| CN211319751U (en) * | 2019-10-17 | 2020-08-21 | 中核霞浦核电有限公司 | Washing unit of radioactive spent resin transmission system |
| CN211507142U (en) * | 2019-10-17 | 2020-09-15 | 中核霞浦核电有限公司 | Radioactive waste resin negative pressure conveying device |
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