Resin transfer metering method and apparatus for resin waste cementation in nuclear power plants

Abstract

The application discloses a resin transmission metering method and device for cement solidification of resin waste in a nuclear power plant. The resin transmission metering method adjusts the proportion of resin and water in the resin being transmitted in the pipeline by alternately opening a resin transmission control valve and a water transmission control valve, so that the transmission of the resin in the pipeline is more stable. The resin liquid level switch is improved into a tuning fork type material switch, and the process control flow of resin metering operation is modified. Whether to start a resin dehydration process is judged by input signals of a second resin liquid level switch and sensing signals of a height sensor, so that sufficient resin is output into a resin metering tank for dehydration treatment. The resin transmission mode is modified. The resin gravity combing and water injection pipeline flushing mode are used to avoid the extrusion of a screw pump on the resin, so that the resin is prevented from being damaged and blocked on the filter screen, and the reliability of resin transmission and metering is improved.

Description

Technical Field

[0001] This invention relates to the field of nuclear power technology, and in particular to a resin transfer metering method and apparatus for the solidification of resin waste cement in nuclear power plants. Background Technology

[0002] In the process of automatically producing solidified resin cement by a Solid Waste Treatment System (TES) in a nuclear power plant, resin transfer and metering are required first. Existing TES cement curing lines have encountered problems such as resin transfer pump overload and tripping, insufficient resin transfer to the resin metering tank, clogging of the dehydration filter screen in the waste resin metering tank, and insufficient effective volume of the resin metering tank during the execution of waste resin curing and metering tasks. These issues severely restrict the automated production of solidified resin and have become one of the key problems hindering the safe, stable, and efficient operation of nuclear power plants.

[0003] Existing resin transfer and metering piping designs, such as Figure 1 As shown, the resin stored in the resin storage tank is transferred to the resin metering tank by a screw transfer pump PO1. The resin in the metering tank is then dehydrated to complete the metering process. However, in practical applications, it has been found that... Figure 1 The following problems exist in the pipeline design for resin transfer and metering: 1. When performing waste resin solidification metering, because the density of water-saturated resin is greater than that of water, the resin in the temporary storage tank concentrates at the bottom. After the pump is started, the resin enters the screw pump chamber through the pipeline. During the compression of the medium, dry grinding occurs in the screw pump chamber, leading to increased pump body vibration and a sharp drop in motor speed, thus preventing the resin from being smoothly delivered to the resin metering tank. 2. During use, the system also fails to deliver sufficient resin to the resin metering tank, causing the grease level switch in the resin metering tank to fail to trigger, thus preventing smooth entry into the subsequent control process. 3. When performing waste resin solidification metering, the screw pump chamber runs continuously, but the liquid level in the resin metering tank does not change significantly. Observation reveals no fluid flow through the dehydration pump. After stopping the dehydration task, observation of the filter screen of the dehydration component in the resin metering tank through a sieves reveals resin fragments in the filter screen gaps. The resin fragments clog the filter screen, preventing water from passing through the filter to the dehydration pump, resulting in resin dehydration failure. 4. The effective volume of the resin metering tank is too small, failing to reach the designed volume of the resin metering tank.

[0004] Therefore, the existing resin transfer metering methods for nuclear power plants suffer from poor reliability in metering operations. Summary of the Invention

[0005] This invention provides a resin transfer metering method and apparatus for cement solidification of resin waste in nuclear power plants, aiming to solve the problem of poor metering reliability in existing resin transfer metering methods for nuclear power plants.

[0006] In a first aspect, embodiments of the present invention provide a resin transfer metering method for cement solidification of resin waste in nuclear power plants. The resin transfer metering method is applied in a controller, which is communicatively connected to a sixth control valve in a resin delivery pipeline. One end of the resin delivery pipeline is connected to a resin metering tank, and the other end is simultaneously connected to a resin output pipeline and a water output pipeline of at least one resin storage tank. The controller is also communicatively connected to a resin transfer control valve in the resin output pipeline and a water transfer control valve in the water output pipeline. One end of an auxiliary transfer pipeline is connected to the resin metering tank, and the other end is connected to a pipeline upstream of the sixth control valve in the resin delivery pipeline. A fifth control valve in the auxiliary transfer pipeline is communicatively connected to the controller. The controller is also communicatively connected to a first resin level switch, a second resin level switch, and a height sensor in the resin metering tank. The resin metering tank is also connected to a concentrate metering tank via a dehydration pipeline. A seventh control valve and a dehydration pump in the dehydration pipeline are both communicatively connected to the controller. The resin transfer metering method includes:

[0007] If a resin loosening command is received, an opening command is sent to the sixth control valve;

[0008] According to the preset alternating control strategy, corresponding control commands are sent to the resin transfer control valve and the water transfer control valve respectively to control the resin transfer control valve and the water transfer control valve to open alternately.

[0009] Determine whether a trigger signal from the first resin level switch has been received;

[0010] If a trigger signal is received, a shutdown command is sent to the sixth control valve and an opening command is sent to the fifth control valve to transfer resin to the resin metering tank through the auxiliary transmission pipeline.

[0011] Determine whether the input signal of the second resin level switch and the sensing signal of the height sensor meet the preset dehydration operation conditions;

[0012] If the dehydration operation conditions are met, an start command is sent to the seventh control valve and the dehydration pump is controlled to run for a preset dehydration time before stopping.

[0013] Determine whether neither the first resin level switch nor the second resin level switch has received a trigger signal, and obtain a trigger determination result indicating whether neither has been triggered.

[0014] If the trigger determination result is that none of them are triggered, an opening command is sent to the fifth control valve to transfer resin to the resin metering tank through the auxiliary transmission pipeline;

[0015] if the trigger signal of the first resin level switch is received or the trigger signal of the second resin level switch is received, sending a closing instruction to the fifth control valve and injecting water into the resin metering tank through the water injection pipeline;

[0016] if the trigger judgment result is trigger, injecting water into the resin metering tank through the water injection pipeline.

[0017] In a second aspect, the embodiments of the present application further provide a resin transmission metering device for cementation of resin waste in a nuclear power plant, wherein a controller in the resin transmission metering device is configured to execute the resin transmission metering method for cementation of resin waste in a nuclear power plant as described in the first aspect above, and the resin transmission metering device comprises:

[0018] a first instruction sending unit configured to send an opening instruction to the sixth control valve if a resin loosening instruction is received;

[0019] a second instruction sending unit configured to send corresponding control instructions to the resin transmission control valve and the water transmission control valve respectively according to a preset alternating control strategy, so as to control the resin transmission control valve and the water transmission control valve to be opened alternately;

[0020] a first judgment unit configured to judge whether the trigger signal of the first resin level switch is received;

[0021] a third instruction sending unit configured to send a closing instruction to the sixth control valve and an opening instruction to the fifth control valve if the trigger signal is received, so as to transmit resin to the resin metering tank through the auxiliary transmission pipeline;

[0022] a second judgment unit configured to judge whether the input signal of the second resin level switch and the sensing signal of the height sensor meet a preset dehydration operation condition;

[0023] a fourth instruction sending unit configured to send an opening instruction to the seventh control valve and control the dehydration pump to operate for a preset dehydration time length and then stop if the dehydration operation condition is met;

[0024] a third judgment unit configured to judge whether the trigger signal of the first resin level switch and the trigger signal of the second resin level switch are not received, and obtain a trigger judgment result of whether the trigger is not triggered;

[0025] a fifth instruction sending unit configured to send an opening instruction to the fifth control valve if the trigger judgment result is not triggered, so as to transmit resin to the resin metering tank through the auxiliary transmission pipeline;

[0026] The sixth instruction sending unit is configured to send a closing instruction to the fifth control valve and inject water into the resin metering tank through the water injection pipeline if the trigger signal of the first resin liquid level switch or the trigger signal of the second resin liquid level switch is received.

[0027] The water injection control unit is configured to inject water into the resin metering tank through the water injection pipeline if the trigger judgment result is a trigger.

[0028] In a third aspect, the embodiments of the present application further provide a resin transmission metering device for cement solidification of resin waste in a nuclear power plant, which comprises a controller, a resin metering tank, a concentrated liquid metering tank and at least one resin temporary storage tank.

[0029] The controller is in communication connection with a sixth control valve arranged in a resin conveying pipeline, one end of the resin conveying pipeline is connected to the resin metering tank, and the other end is connected to a resin output pipeline and a water output pipeline of the at least one resin temporary storage tank; the controller is in communication connection with a resin transmission control valve arranged on the resin output pipeline and a water transmission control valve arranged on the water output pipeline; one end of an auxiliary transmission pipeline is connected to the resin metering tank, and the other end is connected to a pipeline upstream of the sixth control valve in the resin conveying pipeline; a fifth control valve arranged on the auxiliary transmission pipeline is in communication connection with the controller; the controller is in communication connection with a first resin liquid level switch, a second resin liquid level switch and a height sensor arranged in the resin metering tank; the resin metering tank is connected to the concentrated liquid metering tank through a dehydration pipeline; a seventh control valve and a dehydration pump arranged on the dehydration pipeline are in communication connection with the controller.

[0030] The first resin liquid level switch and the second resin liquid level switch are both tuning fork type material switches.

[0031] The controller comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete mutual communication through the communication bus.

[0032] The memory is configured to store a computer program.

[0033] The processor is configured to execute the program stored on the memory to realize the resin transmission metering method for cement solidification of resin waste in a nuclear power plant according to the first aspect.

[0034] In a fourth aspect, the embodiments of the present application further provide a computer readable storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to realize the steps of the resin transmission metering method for cement solidification of resin waste in a nuclear power plant according to the first aspect.

[0035] The embodiment of the present application provides a resin transmission metering method and device for resin waste cement solidification of a nuclear power plant. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0037] Figure 1 The pipe connection diagram of the resin transmission and metering pipe in the existing design is provided.

[0038] Figure 2 The method flow chart of the resin transmission metering method for resin waste cement solidification of a nuclear power plant provided by the embodiment of the present application is provided.

[0039] Figure 3 The schematic block diagram of the resin transmission metering device for resin waste cement solidification of a nuclear power plant provided by the embodiment of the present application is provided.

[0040] Figure 4 The pipe connection diagram of the resin transmission metering device for resin waste cement solidification of a nuclear power plant provided by the embodiment of the present application is provided.

[0041] Figure 5 The schematic block diagram of the resin transmission metering device for resin waste cement solidification of a nuclear power plant provided by the embodiment of the present application is provided.

[0042] Figure 6 The sectional structure diagram of the resin metering tank in the resin transmission metering device for resin waste cement solidification of a nuclear power plant provided by the embodiment of the present application is provided.

[0043] Figure 7 The schematic block diagram of the computer device provided by the embodiment of the present application is provided.

[0044] Fig. 10 is a schematic diagram of a resin transfer metering method for cementation of resin waste in a nuclear power plant. Fig. 11 is a schematic diagram of a resin transfer metering method for cementation of resin waste in a nuclear power plant. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0046] It should be understood that, when used in the specification and the appended claims, the terms "comprise" and "include" indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0047] It should also be understood that the terms used in the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms, unless the context clearly indicates otherwise.

[0048] It should be further understood that the term "and / or" used in the present application and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0049] Referring to Figure 2 As shown in the drawings, the resin transfer metering method for cementation of resin waste in a nuclear power plant is disclosed in the embodiments of the present application. Referring to the structure design of Figs. 4 and Figure 5 , the resin transfer metering method is applied to the device structure as shown in Figure 5 , and the resin transfer metering method is applied to the device structure as shown in Figure 4In the pipeline design shown; specifically, this method is applied to controller 10, and is executed by application software installed in controller 10; controller 10 is communicatively connected to the sixth control valve VS6 installed in resin delivery pipeline 2, one end of resin delivery pipeline 2 is connected to resin metering tank 3, and the other end is simultaneously connected to the resin output pipeline and water output pipeline of at least one resin storage tank 4, controller 10 is also communicatively connected to resin transfer control valve VS1 installed on resin output pipeline and water transfer control valve VS2 installed on water output pipeline, and one end of auxiliary transmission pipeline 5 The resin metering tank 3 is connected at one end, and the other end is connected to the pipeline upstream of the sixth control valve VS6 in the resin delivery pipeline 2. The fifth control valve VS5 on the auxiliary transmission pipeline 5 is communicatively connected to the controller 10. The controller 10 is also communicatively connected to the first resin level switch 31, the second resin level switch 32, and the height sensor 33 installed in the resin metering tank 3. The resin metering tank 3 is also connected to the concentrate metering tank 7 through the dehydration pipeline 6. The seventh control valve VS7 and the dehydration pump PO2 installed on the dehydration pipeline 6 are communicatively connected to the controller 10. The controller 10 is a processor used to issue control commands to control various components, such as a programmable logic controller (PLC) or other terminal devices, such as laptops, desktop computers, tablets, or mobile phones.

[0050] like Figure 1 As shown, the method includes steps S101 to S110.

[0051] S101. If a resin loosening command is received, an opening command is sent to the sixth control valve.

[0052] If a resin loosening command is received, an opening command is sent to the sixth control valve. If the controller receives the resin loosening command, it indicates that the overall resin transfer and curing process has begun, and an opening command can be sent to the sixth control valve to control its opening. At this time, the pipelines at both ends of the sixth control valve are in a connected state. Simultaneously, the controller can send opening commands to the third control valve VS3 and the fourth control valve VS4, thereby causing the third control valve VS3 and the fourth control valve VS4 to open synchronously. Figure 4 SED stands for SED demineralized water, SRE stands for radioactive wastewater, and SAT stands for compressed air.

[0053] S102. According to the preset alternating control strategy, send corresponding control commands to the resin transfer control valve and the water transfer control valve respectively, so as to control the resin transfer control valve and the water transfer control valve to open alternately.

[0054] According to the preset alternating control strategy, corresponding control instructions are respectively sent to the resin transmission control valve and the water transmission control valve to control the resin transmission control valve and the water transmission control valve to alternately open. The length of the resin conveying pipeline is relatively long. To further improve the transmission reliability of the resin in the resin conveying pipeline, corresponding control instructions can be respectively sent to the resin transmission control valve and the water transmission control valve according to the alternating control strategy, and then the resin transmission control valve and the water transmission control valve are alternately opened according to the received control instructions. By controlling the resin transmission control valve and the water transmission control valve to alternately open, the proportion of resin and water in the transmitted resin is adjusted, the reliability of resin transmission is improved, and the situation of blockage during resin transmission is avoided.

[0055] In a more specific embodiment, step S102 specifically includes the following steps: determining the sending interval time of the opening control instruction and the closing control instruction according to the duty ratio and the cycle length in the alternating control strategy; and periodically sending the opening control instruction and the closing control instruction to the resin transmission control valve and the water transmission control valve according to the sending interval time. The duty ratio is 1:1.

[0056] Specifically, the control instructions sent to the resin transmission control valve and the water transmission control valve include opening control instructions and closing control instructions. The sending interval time of the opening control instruction and the closing control instruction can be determined according to the duty ratio and the cycle length set in the alternating control strategy. For example, the cycle length can be 60 seconds, and the interval time for cyclically sending adjacent two groups of control instructions to the same control valve is 60 seconds. The duty ratio can determine the sending interval time between the opening control instruction and the closing control instruction in a group of control instructions. For example, if the duty ratio is 1:1, the sending interval time between the opening control instruction and the closing control instruction is 30 seconds; if the duty ratio is 2:1, the sending interval time between the opening control instruction and the closing control instruction is 40 seconds, and the sending interval time between the closing control instruction and the next opening control instruction is 20 seconds.

[0057] According to the determined sending interval time, the opening control instruction and the closing control instruction can be periodically sent to the resin transmission control valve and the water transmission control valve, that is, two groups of control instructions are respectively sent to the resin transmission control valve and the water transmission control valve. After a group of control instructions containing the opening control instruction and the closing control instruction is sent to a control valve, the next group of control instructions is sent after the interval cycle length. To improve the transmission efficiency, the duty ratio can be set to 1:1, so as to control the resin transmission control valve and the water transmission control valve to alternately open.

[0058] In a more specific embodiment, the periodically sending the opening control instruction and the closing control instruction to the resin transmission control valve and the water transmission control valve according to the sending interval time period comprises: sending the opening control instruction to the resin transmission control valve while sending the closing control instruction to the water transmission control valve and recording the corresponding first sending time; if reaching the time point that is the sending interval time away from the first sending time, sending the closing control instruction to the resin transmission control valve while sending the opening control instruction to the water transmission control valve and recording the corresponding second sending time; if reaching the time point that is the sending interval time away from the second sending time, returning to execute the step of sending the opening control instruction to the resin transmission control valve while sending the closing control instruction to the water transmission control valve and recording the corresponding first sending time.

[0059] The specific process of controlling the resin transmission control valve and the water transmission control valve can be: sending the opening control instruction to the resin transmission control valve and sending the closing control instruction to the water transmission control valve, after a sending interval time between the opening control instruction and the closing control instruction in a group of control instructions, then sending the closing control instruction to the resin transmission control valve and sending the opening control instruction to the water transmission control valve, according to the duty ratio and cycle length set in the alternate control strategy, the corresponding control instruction is sent repeatedly, so as to realize the control of the resin transmission control valve and the water transmission control valve alternately opening.

[0060] S103, judging whether the trigger signal of the first resin liquid level switch is received.

[0061] Judging whether the trigger signal of the first resin liquid level switch is received. Further judging whether the trigger signal of the first resin liquid level switch is received, if the resin liquid level in the resin metering tank reaches the position where the first resin liquid level switch is located, the first resin liquid level switch sends the trigger signal to the controller.

[0062] S104, if the trigger signal is received, sending the closing instruction to the sixth control valve while sending the opening instruction to the fifth control valve, so as to transmit the resin to the resin metering tank through the auxiliary transmission pipeline.

[0063] If the trigger signal is received, sending the closing instruction to the sixth control valve while sending the opening instruction to the fifth control valve, so as to transmit the resin to the resin metering tank through the auxiliary transmission pipeline. If the trigger signal from the first resin liquid level switch is received, the closing instruction is sent to the sixth control valve; at the same time, the opening instruction is sent to the fifth control valve, and the fifth control valve is turned on, at this time, the resin can be transmitted to the resin metering tank through the auxiliary transmission pipeline.

[0064] S105, judging whether the input signal of the second resin level switch and the sensing signal of the height sensor satisfy a preset dehydration operation condition.

[0065] The input signal of the second resin level switch and the sensing signal of the height sensor are further acquired to judge whether the input signal and the sensing signal satisfy the dehydration operation condition. Here, the sensing signal of the height sensor is added to optimize the judgment process of triggering the dehydration task, thereby avoiding the problem of failing to smoothly enter the subsequent control process.

[0066] In the existing pipeline design, the maximum height difference H1 between the upstream pipeline and the downstream pipeline of the sixth control valve is 2.8 meters. When the resin metering tank stops resin transmission and starts the dehydration process, the resin in the resin conveying pipeline will settle to the bottom of the pipeline due to the height difference. The total volume of the middle section of the resin conveying pipeline is 5.5L, and the pipeline is filled with SED water without resin. According to the traditional control process, when the trigger signal from the first resin level switch is received, resin transmission is stopped and resin dehydration treatment is performed. Due to the dehydration treatment, the liquid level in the resin metering tank decreases, and after the trigger signal disappears, resin transmission is restarted. Since the 5.5L pipeline is filled with SED water at this time, the first resin level switch is triggered again after 5.5L of water is transmitted to the resin metering tank, and the execution step falls into a dead loop, so that the last 5.5L of resin is transmitted to the resin metering tank, and the subsequent waste resin solidification metering step cannot be performed.

[0067] In a more specific embodiment, step S105 specifically includes the following steps: judging whether the input signal is a trigger signal and whether the sensing signal is not less than a height threshold set in the dehydration operation condition to obtain a first judgment result and record the corresponding judgment time point; judging whether a delay time point is reached, the delay time point being a time point that is apart from the judgment time point by a preset time length in the dehydration operation condition; if the delay time point is reached, judging again whether the input signal is a trigger signal and whether the sensing signal is not less than the height threshold to obtain a second judgment result; if both the first judgment result and the second judgment result are yes, it is determined that the dehydration operation condition is satisfied; if the second judgment result is no, it is determined that the dehydration operation condition is not satisfied.

[0068] Specifically, the judgment process triggered by the dehydration task is optimized. First, it is judged whether the input signal is a trigger signal, and at the same time, it is judged whether the sensing signal is not less than a set height threshold value. For example, the height threshold value can be set to 850 mm. If the sensing signal is greater than the height threshold value, it is determined that the liquid level of the resin measuring tank reaches 850 mm. If the input signal is a trigger signal and the sensing signal is not less than the set height threshold value, a first judgment result is obtained, and at this time, the judgment time point corresponding to the first judgment result needs to be recorded. It is judged whether the corresponding delay time point is reached. For example, if the preset time length is set to 30 seconds, it is judged whether 30 seconds have passed after the first judgment result is obtained, so as to judge whether the delay time point is reached. If the delay time point is reached, it is judged again whether the input signal is a trigger signal and whether the sensing signal is not less than the height threshold value, so as to obtain a second judgment result. If the first judgment result and the second judgment result are both yes at this time, it is determined that the dehydration operation condition is met and the resin dehydration cycle processing is started. If the second judgment result is no, it is determined that the dehydration operation condition is not met.

[0069] In a more specific embodiment, after the first judgment result is obtained and the corresponding judgment time point is recorded, a closing instruction is sent to the fifth control valve.

[0070] To avoid the backflow of resin in the pipeline due to gravity, which affects the amount of resin in the resin measuring tank, a closing instruction is sent to the fifth control valve after the first judgment result is obtained. By closing the fifth control valve, the accuracy of the second judgment result can be further improved, that is, the accuracy of the second judgment result is improved.

[0071] In a more specific embodiment, after step S105, the following steps are further included: if the dehydration operation condition is not met, the step of sending an opening instruction to the fifth control valve to transmit resin to the resin measuring tank through the auxiliary transmission pipeline is returned to be executed.

[0072] If it is determined that the dehydration operation condition is not met, the fifth control valve can be controlled to be opened, so that the input resin is supplemented to the resin measuring tank, and the step of judging whether the dehydration operation condition is met is repeated.

[0073] S106, if the dehydration operation condition is met, an opening instruction is sent to the seventh control valve and the dehydration pump is controlled to operate for a preset dehydration time and then stopped.

[0074] If the dewatering operation condition is met, an opening instruction is sent to the seventh control valve, and the dewatering pump is controlled to operate for a preset dewatering time and then stop. If the dewatering operation condition is met, an opening instruction can be sent to the seventh control valve, so that the seventh control valve is turned on at this time, and an opening instruction is further sent to the dewatering pump. The dewatering pump operates for a preset dewatering time T1, and then a closing instruction is sent to the dewatering pump.

[0075] S107, whether the first resin level switch and the second resin level switch are not received trigger signal, get whether the trigger judgment result of not triggering.

[0076] Whether the first resin level switch and the second resin level switch are not received trigger signal is judged, and the trigger judgment result of whether not triggering is obtained. Whether the first resin level switch and the second resin level switch send trigger signal to the controller is judged, that is, whether the first resin level switch and the second resin level switch are not triggered is judged, and the corresponding trigger judgment result is obtained.

[0077] S108, if the trigger judgment result is not triggering, an opening instruction is sent to the fifth control valve to transmit resin to the resin metering tank through the auxiliary transmission pipeline.

[0078] If the trigger judgment result is not triggering, an opening instruction is sent to the fifth control valve to transmit resin to the resin metering tank through the auxiliary transmission pipeline. If the trigger judgment result is not triggering, an opening instruction is sent to the fifth control valve, so that resin is transmitted to the resin metering tank through the auxiliary transmission pipeline again.

[0079] S109, if the trigger signal of the first resin level switch is received or the trigger signal of the second resin level switch is received, a closing instruction is sent to the fifth control valve and water is injected into the resin metering tank through the water injection pipeline.

[0080] If the trigger signal of the first resin level switch is received or the trigger signal of the second resin level switch is received, a closing instruction is sent to the fifth control valve and water is injected into the resin metering tank through the water injection pipeline. If the trigger signal of any one of the first resin level switch and the second resin level switch is received, a closing instruction is sent to the fifth control valve, water is injected into the resin metering tank through the water injection pipeline, and subsequent resin dewatering and metering processing are performed.

[0081] S110, if the trigger judgment result is triggering, water is injected into the resin metering tank through the water injection pipeline.

[0082] If the trigger judgment result is trigger, water is injected into the resin metering tank through the water injection pipeline. If the trigger judgment result is trigger, it indicates that the controller has at least received a trigger signal of the first resin liquid level switch or at least received a trigger signal of the second resin liquid level switch. At this time, water can be directly injected into the resin metering tank through the water injection pipeline, and subsequent resin dehydration and metering processing can be performed.

[0083] In a more specific embodiment, a water injection pump is arranged on the water injection pipeline, an output port of the water injection pipeline is connected with an upstream pipeline of the sixth control valve in the resin conveying pipeline, and the water injection pump is in communication connection with the controller. Step S110 specifically includes: sending a water injection instruction to the water injection pump to inject water through the water injection pump and flush the resin in the resin conveying pipeline.

[0084] Specifically, the controller can send a water injection instruction to the water injection pump, and the water injection pump is started and flushes the resin in the resin conveying pipeline. Compared with the traditional pipeline design, the resin gravity combing and SED water flushing method is used to replace the screw pump transmission resin method, so as to avoid the problem that the resin is damaged and the filter screen is blocked due to the extrusion of the pump cavity of the screw pump on the resin during the resin transmission process. The adjustment of the control process does not need to replace the filter screen filter in the resin metering tank, does not need to be physically modified on site, has a short cycle, and does not increase the dose of the plant due to the radioactive resin fragments during the later operation, thereby improving the reliability of the resin transmission process.

[0085] The resin transmission and metering method for nuclear power plant resin waste cement solidification disclosed in the above embodiment adjusts the proportion of resin and water in the resin conveying pipeline by alternately opening the resin transmission control valve and the water transmission control valve, so that the transmission of the resin in the pipeline is more stable. The resin liquid level switch is improved to a tuning fork type material switch, and the process control flow of the resin metering operation is modified. Whether to start the resin dehydration process is determined by the input signal of the second resin liquid level switch and the sensing signal of the height sensor, so as to realize output of sufficient resin into the resin metering tank for dehydration treatment. The resin transmission method is modified, and the resin gravity combing and water injection pipeline flushing method are used to avoid the extrusion of the screw pump on the resin, so as to avoid the problem that the resin is damaged and the filter screen is blocked, thereby improving the reliability of the resin transmission and metering.

[0086] The embodiment of the present application also provides a resin transmission metering device for resin waste cementation of a nuclear power plant, which can be arranged in a controller, the controller 10 is in communication connection with a sixth control valve VS6 arranged in a resin conveying pipeline 2, one end of the resin conveying pipeline 2 is connected with a resin metering tank 3, and the other end is connected with a resin output pipeline and a water output pipeline of at least one resin temporary storage tank 4, the controller 10 is also in communication connection with a resin transmission control valve VS1 arranged on the resin output pipeline and a water transmission control valve VS2 arranged on the water output pipeline, one end of an auxiliary transmission pipeline 5 is connected with the resin metering tank 3, and the other end is connected with a pipeline upstream of the sixth control valve VS6 in the resin conveying pipeline 2, a fifth control valve VS5 on the auxiliary transmission pipeline 5 is in communication connection with the controller 10, the controller 10 is also in communication connection with a first resin liquid level switch 31, a second resin liquid level switch 32 and a height sensor 33 arranged in the resin metering tank 3, the resin metering tank 3 is also connected with a concentrated liquid metering tank 7 through a dehydration pipeline 6, a seventh control valve VS7 and a dehydration pump PO2 arranged on the dehydration pipeline 6 are in communication connection with the controller 10, and the resin transmission metering device for resin waste cementation of the nuclear power plant is used for executing any one of the aforementioned embodiments of the resin transmission metering method for resin waste cementation of the nuclear power plant. Specifically, refer to Figure 3 , Figure 3 The schematic block diagram of the resin transmission metering device for resin waste cementation of the nuclear power plant provided by the embodiment of the present application is shown.

[0087] As shown in Figure 3 , the resin transmission metering device 100 for resin waste cementation of the nuclear power plant comprises a first instruction sending unit 101, a second instruction sending unit 102, a first judging unit 103, a third instruction sending unit 104, a second judging unit 105, a fourth instruction sending unit 106, a third judging unit 107, a fifth instruction sending unit 108, a sixth instruction sending unit 109 and a water injection control unit 110.

[0088] The first instruction sending unit 101 is used for sending an opening instruction to the sixth control valve if a resin loosening instruction is received; the second instruction sending unit 102 is used for sending corresponding control instructions to the resin transmission control valve and the water transmission control valve respectively according to a preset alternating control strategy, so as to control the resin transmission control valve and the water transmission control valve to open alternately; the first judging unit 103 is used for judging whether a trigger signal of the first resin liquid level switch is received; the third instruction sending unit 104 is used for sending a closing instruction to the sixth control valve and an opening instruction to the fifth control valve if the trigger signal is received, so as to transmit resin to the resin metering tank through the auxiliary transmission pipeline; the second judging unit 105 is used for judging whether the input signal of the second resin liquid level switch and the sensing signal of the height sensor satisfy a preset dehydration operation condition; the fourth instruction sending unit 106 is used for sending an opening instruction to the seventh control valve and controlling the dehydration pump to operate for a preset dehydration time length and then stop if the dehydration operation condition is satisfied; the third judging unit 107 is used for judging whether the trigger signals of the first resin liquid level switch and the second resin liquid level switch are not received, so as to obtain a trigger judgment result of whether not triggered; the fifth instruction sending unit 108 is used for sending an opening instruction to the fifth control valve if the trigger judgment result is not triggered, so as to transmit resin to the resin metering tank through the auxiliary transmission pipeline; the sixth instruction sending unit 109 is used for sending a closing instruction to the fifth control valve and injecting water into the resin metering tank through the water injection pipeline if the trigger signal of the first resin liquid level switch is received or the trigger signal of the second resin liquid level switch is received; and the water injection control unit 110 is used for injecting water into the resin metering tank through the water injection pipeline if the trigger judgment result is triggered.

[0089] The resin transmission metering device for resin waste cement solidification of a nuclear power plant provided in the embodiment of the application applies the resin transmission metering method for resin waste cement solidification of a nuclear power plant, which adjusts the proportion of resin and water in the resin being transmitted in the pipeline by controlling the resin transmission control valve and the water transmission control valve to open alternately, so that the transmission of resin in the pipeline is more stable; the resin liquid level switch is improved to a tuning fork type material switch, and the process control flow of resin metering operation is modified, and whether to start the resin dehydration process is judged by the input signal of the second resin liquid level switch and the sensing signal of the height sensor, so that sufficient resin is output into the resin metering tank for dehydration treatment; the resin transmission mode is modified, and the resin gravity combing and water injection pipeline flushing mode are used to avoid the extrusion of resin by the screw pump, so that the resin is not damaged and blocked in the filter screen, thereby improving the reliability of resin transmission and metering.

[0090] The application further discloses a resin transmission metering equipment for resin waste cement solidification of a nuclear power plant, wherein, as shown inFigure 4 and Figure 5 As shown in the figure, the resin transfer metering device comprises a controller 10, a resin metering tank 3, a concentrate metering tank 7 and at least one resin temporary storage tank 4; the controller 10 is in communication connection with a sixth control valve VS6 arranged in a resin conveying pipeline 2, one end of the resin conveying pipeline 2 is connected to the resin metering tank 3, and the other end is simultaneously connected to a resin output pipeline and a water output pipeline of the at least one resin temporary storage tank 4, the controller 10 is also in communication connection with a resin transfer control valve VS1 arranged on the resin output pipeline and a water transfer control valve VS2 arranged on the water output pipeline, one end of an auxiliary transfer pipeline 5 is connected to the resin metering tank 3, and the other end is connected to a pipeline upstream of the sixth control valve VS6 in the resin conveying pipeline 2, a fifth control valve VS5 on the auxiliary transfer pipeline 5 is in communication connection with the controller 10; the controller 10 is also in communication connection with a first resin liquid level switch 31, a second resin liquid level switch 32 and a height sensor 33 arranged in the resin metering tank 3, the resin metering tank 3 is also connected to the concentrate metering tank 7 through a dewatering pipeline 6, a seventh control valve VS7 and a dewatering pump PO2 arranged on the dewatering pipeline 6 are both in communication connection with the controller 10; the first resin liquid level switch 31 and the second resin liquid level switch 32 are both tuning fork type material switches, and the setting height of the second resin liquid level switch 32 can be set to be higher than that of the first resin liquid level switch 31.

[0091] In order to avoid the problem of false triggering of the resin liquid level switch, the first resin liquid level switch 31 and the second resin liquid level switch 32 are both tuning fork type material switches, and the characteristic of the tuning fork type material switch is that only solid resin can generate a triggering signal, and liquid water cannot trigger the tuning fork type material switch. This setting is used in cooperation with the steps S103-S105 in the above method, which can effectively avoid the problem that the operation process falls into a dead loop and the subsequent step of solidifying and metering the waste resin cannot be executed due to the false triggering of the resin liquid level switch and the process flow.

[0092] The resin transfer metering device for cement solidification of nuclear power plant resin waste can be realized in the form of a computer program, and the controller can be realized in the form of a computer device, and the computer program can run on the computer device. The controller comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete communication with each other through the communication bus; the memory is used to store a computer program; the processor is used to execute the program stored on the memory to realize the resin transfer metering method for cement solidification of nuclear power plant resin waste as described in the above embodiments.

[0093] Please refer to Figure 7 , Figure 7is a schematic block diagram of a computer device provided by an embodiment of the present application. The computer device can be a processor for executing a resin transfer metering method for nuclear power plant resin waste cementation to achieve control over components.

[0094] Referring to Figure 7 The computer device 500 includes a processor 502, a memory, and a communication interface 505 connected through a communication bus 501, wherein the memory can include a storage medium 503 and an internal memory 504.

[0095] The storage medium 503 can store an operating system 5031 and a computer program 5032. The computer program 5032, when executed, can cause the processor 502 to execute a resin transfer metering method for nuclear power plant resin waste cementation, wherein the storage medium 503 can be a volatile storage medium or a non-volatile storage medium.

[0096] The processor 502 is configured to provide computing and control capabilities to support the operation of the entire computer device 500.

[0097] The internal memory 504 provides an environment for the execution of the computer program 5032 in the storage medium 503, which, when executed by the processor 502, can cause the processor 502 to execute a resin transfer metering method for nuclear power plant resin waste cementation.

[0098] The communication interface 505 is configured to perform network communication, such as providing transmission of data information, etc. Those skilled in the art can understand that Figure 7 The structure shown in the figure is only a block diagram of part of the structure related to the present application scheme, and does not constitute a limitation on the computer device 500 to which the present application scheme is applied. The specific computer device 500 can include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0099] The processor 502 is configured to run the computer program 5032 stored in the memory to implement the corresponding functions in the resin transfer metering method for nuclear power plant resin waste cementation described above.

[0100] Those skilled in the art can understand that Figure 7 The embodiments of the computer device shown in the figure do not constitute a limitation on the specific structure of the computer device. In other embodiments, the computer device can include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement. For example, in some embodiments, the computer device can only include a memory and a processor, and in such embodiments, the structure and functions of the memory and the processor are consistent with those of the memory 504 and the processor 502 shown in the embodiment, and will not be described here. Figure 7 The processor 502 is configured to provide computing and control capabilities to support the operation of the entire computer device 500.

[0101] It should be understood that in the embodiments of the present application, the processor 502 can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0102] In a more specific embodiment, the top cover of the resin metering tank 3 is provided with a connecting pipe 8 communicating with the inner cavity of the resin metering tank 3, and the first resin liquid level switch 31 and the second resin liquid level switch 32 are both assembled and arranged at the top end of a corresponding connecting pipe 8. Specifically, the pipeline between the dewatering pump PO2 and the seventh control valve VS7 in the dewatering pipeline 6 is connected with a conveying pipeline; the other end of the conveying pipeline is connected with one port of the concentrated liquid metering tank 7 through an eighth control valve VS8; the downstream of the dewatering pump PO2 in the dewatering pipeline 6 is further provided with a ninth control valve VS9, and the pipeline between the dewatering pump PO2 and the ninth control valve VS9 is connected with the resin metering tank 3 through a flow pipeline, and the flow pipeline is provided with a tenth control valve VS10 and a second flow meter L2; the pipeline between the ninth control valve VS9 and the concentrated liquid metering tank 7 is further connected with each resin temporary storage tank 4 through a reflux pipeline, and the reflux pipeline is provided with a reflux control valve VS0.

[0103] Through the SED water to test the effective volume of the resin metering tank, it is found that the average effective volume of the resin metering tank is 132L, which is less than the designed effective volume 135L, and the specific test results are shown in Table 1.

[0104] Table 1

[0105]

[0106]

[0107] From the above table, it can be seen that the measured volume of the resin metering tank 3 is 132L, which deviates from the design requirement of effective volume 135L by 3L. Since the resin liquid level switch trigger is used as the stop condition in the present application, when the actual liquid surface in the tank body contacts the point of the liquid level meter, the metering stops, and the liquid level volume at this time is taken as the effective volume of the tank body; this metering mode causes part of the space in the tank body to actually not be filled with resin. To solve this problem, the technical method of the present application is provided with a connecting pipe 8 on the top cover of the resin metering tank 3, and the first resin liquid level switch 31 and the second resin liquid level switch 32 are both assembled and arranged at the top end of a corresponding connecting pipe 8, and the specific structure is shown in Figure 6 Y2 is the target liquid cross section after the first resin liquid level switch is raised, Y3 is the effective volume liquid level surface defined by the design institute; H2 is the height of the connecting pipe (H2 is 160mm in the specific embodiment of the present application); H3 is the original trigger height of the first resin liquid level switch (H3 is 210mm in the specific embodiment of the present application); H4 is the trigger height of the first resin liquid level switch after adjustment (H4 is 170mm in the specific embodiment of the present application). The resin liquid level switch is raised by the connecting pipe 8, the trigger value of the resin liquid level switch is adjusted upward, and the trigger point is close to the connecting pipe 8. Here, the design is updated without replacing the resin metering tank 3, only the connecting pipe 8 and the raised flange with a certain thickness need to be added, which has low cost and short construction period.

[0108] In a more specific embodiment, the output port of the auxiliary water inlet pipeline is connected with the resin metering tank 3, and a first flow meter L1 is arranged on the auxiliary water inlet pipeline and in communication connection with the controller 10. One end of the sampling pipeline is connected with the upstream pipeline of the sixth control valve VS6 in the resin conveying pipeline 2, and the other end is connected with the resin temporary storage tank 4; the sampling control valve VSQ and the sampler QS arranged in the sampling pipeline are both in communication connection with the controller 10.

[0109] In another embodiment of the present application, a computer readable storage medium is provided. The computer readable storage medium can be a volatile or non-volatile computer readable storage medium. The computer readable storage medium stores a computer program, wherein the computer program is executed by a processor to realize the steps contained in the resin conveying metering method for nuclear power plant resin waste cement solidification.

[0110] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the devices, apparatuses and units described above can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here. Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in electronic hardware, computer software or a combination of both. In order to clearly illustrate the interchangeability of hardware and software, each example has been described in the foregoing description in terms of its general functionality, without regard to its specific combination of hardware and software. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0111] In several embodiments provided by the present application, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely schematic, for example, the division of the units is merely logical functional division, and actual implementation can have another division, or units with the same function can be combined into one unit, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, or can be electrical, mechanical or other form of connection.

[0112] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, i.e. they can be located in one place or distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0113] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be realized in the form of hardware or software functional unit.

[0114] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application or the whole or part of the technical solutions that essentially contribute to the prior art can be embodied in the form of a software product. The computer software product is stored in a computer readable storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in various embodiments of the present application. The aforementioned computer readable storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a magnetic disk or an optical disk, and various media that can store program codes.

[0115] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A resin transfer metering method for resin waste cementation in a nuclear power plant, the resin transfer metering method being applied to a controller, the controller being in communication with a sixth control valve arranged in a resin delivery pipeline, one end of the resin delivery pipeline being connected to a resin metering tank, the other end of the resin delivery pipeline being connected to a resin output pipeline of at least one resin temporary storage tank and a water output pipeline, the controller being in communication with a resin transfer control valve arranged in the resin output pipeline and a water transfer control valve arranged in the water output pipeline, one end of an auxiliary transfer pipeline being connected to the resin metering tank, the other end of the auxiliary transfer pipeline being connected to a pipeline upstream of the sixth control valve in the resin delivery pipeline, a fifth control valve arranged in the auxiliary transfer pipeline being in communication with the controller; the controller being in communication with a first resin liquid level switch, a second resin liquid level switch and a height sensor arranged in the resin metering tank, the resin metering tank being connected to a concentrated liquid metering tank through a dehydration pipeline, a seventh control valve and a dehydration pump arranged in the dehydration pipeline being in communication with the controller. The resin transmission metering method comprises: if receiving the resin conveying instruction, sending an opening instruction to the sixth control valve; sending corresponding control instructions to the resin transmission control valve and the water transmission control valve according to a preset alternating control strategy to control the resin transmission control valve and the water transmission control valve to open alternately; judging whether the trigger signal of the first resin liquid level switch is received; if receiving the trigger signal, sending a closing instruction to the sixth control valve and an opening instruction to the fifth control valve to convey resin to the resin metering tank through the auxiliary transmission pipeline; judging whether the input signal of the second resin liquid level switch and the sensing signal of the height sensor satisfy a preset dehydration operation condition; if satisfying the dehydration operation condition, sending an opening instruction to the seventh control valve and controlling the dehydration pump to operate for a preset dehydration time length and then stop; judging whether the trigger signals of the first resin liquid level switch and the second resin liquid level switch are not received, obtaining a trigger judgment result of whether not triggered; if the trigger judgment result is not triggered, sending an opening instruction to the fifth control valve to convey resin to the resin metering tank through the auxiliary transmission pipeline; if receiving the trigger signal of the first resin liquid level switch or receiving the trigger signal of the second resin liquid level switch, sending a closing instruction to the fifth control valve and injecting water into the resin metering tank through the water injection pipeline; if the trigger judgment result is triggered, injecting water into the resin metering tank through the water injection pipeline.

2. The resin transfer metering method for cementation of resin waste in nuclear power plants according to claim 1, characterized in that, The method comprises: determining the sending interval time of the opening control instruction and the closing control instruction according to the duty ratio and the cycle length in the alternating control strategy; periodically sending the opening control instruction and the closing control instruction to the resin transmission control valve and the water transmission control valve according to the sending interval time.

3. The resin transfer metering method for cementation of resin waste in nuclear power plants according to claim 2, characterized in that, The method comprises: sending the opening control instruction to the resin transmission control valve and sending the closing control instruction to the water transmission control valve at the same time and recording the corresponding first sending time; if reaching a time point with the sending interval time interval from the first sending time, sending the closing control instruction to the resin transmission control valve and sending the opening control instruction to the water transmission control valve at the same time and recording the corresponding second sending time; if reaching a time point with the sending interval time interval from the second sending time, returning to execute the step of sending the opening control instruction to the resin transmission control valve and sending the closing control instruction to the water transmission control valve at the same time and recording the corresponding first sending time.

4. Resin transfer dosing method for cementation of resin waste in nuclear power plants according to claim 2 or 3, characterized in that, The duty ratio is 1:

1.

5. The resin transfer metering method for cementation of resinous waste in nuclear power plants according to claim 1, characterized in that, The method comprises: determining whether the input signal of the second resin level switch and the sensing signal of the height sensor satisfy the preset dewatering operation condition, and obtaining a first determination result and recording a corresponding determination time point; determining whether a delay time point is reached, the delay time point being a time point that is apart from the determination time point by a preset time length in the dewatering operation condition; if the delay time point is reached, determining again whether the input signal is the trigger signal and whether the sensing signal is not less than the height threshold, and obtaining a second determination result; if both the first determination result and the second determination result are yes, it is determined that the dewatering operation condition is satisfied; if the second determination result is no, it is determined that the dewatering operation condition is not satisfied.

6. The resin transfer metering method for cementation of resin waste in nuclear power plants according to claim 5, characterized in that, after the first determination result is obtained and the corresponding determination time point is recorded, the method further comprises: sending a closing instruction to the fifth control valve.

7. Resin transfer dosing method for cementation of resin waste in nuclear power plants according to claim 5 or 6, characterized in that, after the input signal of the second resin level switch and the sensing signal of the height sensor are determined to satisfy the preset dewatering operation condition, the method further comprises: if the dewatering operation condition is not satisfied, returning to the step of sending the opening instruction to the fifth control valve to transmit the resin to the resin metering tank through the auxiliary transmission pipeline.

8. The resin transfer metering method for cementation of resin waste in nuclear power plants according to claim 1, characterized in that, a water injection pump is arranged on the water injection pipeline, an output port of the water injection pipeline is connected with an upstream pipeline of the sixth control valve in the resin conveying pipeline, and the water injection pump is in communication connection with the controller; the water injection into the resin metering tank through the water injection pipeline comprises: sending a water injection instruction to the water injection pump to inject water through the water injection pump and flush the resin in the resin conveying pipeline.

9. A resin transfer metering device for cementation of resin waste in a nuclear power plant, characterized by the controller in the resin transmission metering device is configured to execute the resin transmission metering method for nuclear power plant resin waste cement solidification according to any one of claims 1-8, and the resin transmission metering device comprises: a first instruction sending unit configured to send an opening instruction to the sixth control valve if a resin conveying instruction is received; a second instruction sending unit configured to send corresponding control instructions to the resin transmission control valve and the water transmission control valve respectively according to a preset alternating control strategy to control the resin transmission control valve and the water transmission control valve to be opened alternately; a first determination unit configured to determine whether a trigger signal of the first resin level switch is received; a third instruction sending unit configured to send a closing instruction to the sixth control valve and an opening instruction to the fifth control valve simultaneously if a trigger signal is received, so as to transmit the resin to the resin metering tank through the auxiliary transmission pipeline; a second determination unit configured to determine whether the input signal of the second resin level switch and the sensing signal of the height sensor satisfy the preset dewatering operation condition; a fourth instruction sending unit configured to send an opening instruction to the seventh control valve and control the dewatering pump to operate for a preset dewatering time length and then stop if the dewatering operation condition is satisfied; a third determination unit configured to determine whether trigger signals of the first resin level switch and the second resin level switch are not received, and obtain a trigger determination result of whether both are not triggered. The fifth instruction sending unit is configured to send an opening instruction to the fifth control valve to transfer resin to the resin metering tank through the auxiliary transmission pipeline if the trigger judgment result is that none of the triggers is triggered; The sixth instruction sending unit is configured to send a closing instruction to the fifth control valve and inject water into the resin metering tank through the water injection pipeline if the trigger signal of the first resin liquid level switch or the trigger signal of the second resin liquid level switch is received. The water injection control unit is configured to inject water into the resin metering tank through the water injection pipeline if the trigger judgment result is that all the triggers are triggered.

10. A resin transfer metering apparatus for cementation of resin waste in a nuclear power plant, characterized by The resin transmission metering device comprises a controller, a resin metering tank, a concentrated liquid metering tank, and at least one resin temporary storage tank. The controller is in communication connection with a sixth control valve arranged in a resin conveying pipeline, one end of the resin conveying pipeline is connected to the resin metering tank, the other end is connected to resin output pipelines and water output pipelines of the at least one resin temporary storage tank, the controller is also in communication connection with a resin transmission control valve arranged on the resin output pipeline and a water transmission control valve arranged on the water output pipeline, one end of an auxiliary transmission pipeline is connected to the resin metering tank, the other end is connected to a pipeline upstream of the sixth control valve in the resin conveying pipeline, a fifth control valve arranged on the auxiliary transmission pipeline is in communication connection with the controller, the controller is also in communication connection with a first resin liquid level switch, a second resin liquid level switch, and a height sensor arranged in the resin metering tank, the resin metering tank is also connected to the concentrated liquid metering tank through a dehydration pipeline, a seventh control valve and a dehydration pump arranged on the dehydration pipeline are in communication connection with the controller. The first resin liquid level switch and the second resin liquid level switch are both tuning fork type material switches. The controller comprises a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete communication with each other through the communication bus. The memory is used to store a computer program. The processor is used to execute the program stored on the memory to realize the resin transmission metering method for nuclear power plant resin waste cementation in any one of claims 1-8.

11. A resin transfer metering apparatus for cementation of resinous waste in a nuclear power plant according to claim 10, characterized in that, A connecting pipe in communication with an inner cavity of the resin metering tank is arranged on a top cover of the resin metering tank, and the first resin liquid level switch and the second resin liquid level switch are both arranged at top ends of corresponding connecting pipes.

12. The resin transfer metering apparatus for cementation of resin waste in nuclear power plants according to claim 10, characterized in that, A pipeline between the dehydration pump and the seventh control valve in the dehydration pipeline is connected to a conveying pipeline; the other end of the conveying pipeline is connected to one port of the concentrated liquid metering tank through an eighth control valve; A ninth control valve is arranged downstream of the dehydration pump in the dehydration pipeline, a pipeline between the dehydration pump and the ninth control valve is connected to the resin metering tank through a flow pipeline, and a tenth control valve and a second flowmeter are arranged on the flow pipeline; A pipeline between the ninth control valve and the concentrated liquid metering tank is also connected to each resin temporary storage tank through a reflux pipeline, and a reflux control valve is arranged on the reflux pipeline.

13. A resin transfer metering apparatus for cementation of resin waste in a nuclear power plant according to claim 12, characterized in that, The output port of the auxiliary water inlet pipeline is connected with the resin metering tank, a first flow meter is arranged on the auxiliary water inlet pipeline, and the first flow meter is in communication connection with the controller.

14. A resin transfer metering apparatus for cementation of resinous waste in a nuclear power plant according to claim 13, characterized in that, One end of the sampling pipeline is connected with the upstream pipeline of the sixth control valve in the resin conveying pipeline, and the other end is connected with the resin temporary storage tank; a sampling control valve and a sampler arranged in the sampling pipeline are in communication connection with the controller.

15. A computer readable storage medium having stored thereon a computer program, characterized in that, The computer program, when executed by a processor, implements the steps of the resin transfer metering method for cementation of resin waste in a nuclear power plant as claimed in any one of claims 1-8.

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