Resin transfer device, resin transfer vehicle, nuclear power plant system, resin transfer method

Abstract

The present invention discloses a resin transfer device, comprising a storage tank and a conveying device. The storage tank is pre-loaded with a liquid conveying medium. The storage tank is connected to a first pipeline, a second pipeline, and a third pipeline. The first pipeline and the second pipeline are both used to connect to a resin storage tank. The conveying device is provided on the second pipeline and is used to pump the liquid conveying medium pre-loaded in the storage tank to the resin storage tank through the second pipeline, and to pressurize the resin stored in the resin storage tank to the storage tank for temporary storage through the first pipeline; the third pipeline is used to connect to a resin receiving tank and transfer the temporarily stored resin in the storage tank to the resin receiving tank through the third pipeline. The present invention also discloses a resin transfer vehicle, a nuclear power plant system, and a resin transfer method. The present invention adopts positive pressure conveying, which has higher conveying efficiency than the traditional negative pressure conveying method and can avoid blockage problems.

Description

Technical Field

[0001] The present invention belongs to the technical field of radioactive waste treatment, and particularly relates to a resin transfer device, a resin transfer vehicle, a nuclear power plant system, and a resin transfer method. Background Art

[0002] In the water treatment of the nuclear industry, environmental protection engineering, and water supply and drainage engineering, the failed and discarded ion exchange resins are usually collected and temporarily stored in a water-based container, and then transported to a treatment facility for treatment when needed.

[0003] Currently, the resin transportation in nuclear power plants usually adopts a negative pressure transportation method, that is, a transportation device with a suction function such as a vacuum pump is installed at the outlet of the resin storage tank to pump the resin in the resin storage tank into the resin receiving tank. In this process, the transportation device and pipeline are prone to problems such as blockage, and moreover, the transportation concentration is unstable, and the transportation efficiency and effective loading rate are relatively low. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a resin transfer device, a resin transfer vehicle, a nuclear power plant system, and a resin transfer method in view of the above deficiencies existing in the prior art. The device uses positive pressure to transport resin, and compared with the traditional negative pressure transportation method, it has higher transportation efficiency and can avoid blockage problems.

[0005] The technical solution for the present invention to solve the above technical problems is as follows:

[0006] According to the first aspect of the present invention, a resin transfer device is provided, which includes a storage tank and a transportation device. The storage tank is pre-filled with a liquid transportation medium. The storage tank is connected with a first pipeline, a second pipeline, and a third pipeline, where:

[0007] Both the first pipeline and the second pipeline are used to be connected with a resin storage tank. The transportation device is arranged on the second pipeline and is used to pump the liquid transportation medium pre-filled in the storage tank through the second pipeline into the resin storage tank to form positive pressure in the resin storage tank, and use the positive pressure to press the resin stored in the resin storage tank through the first pipeline into the storage tank for temporary storage. Moreover, it is used to pressurize the storage tank to press the liquid transportation medium pre-filled in the storage tank through the first pipeline into the resin storage tank, and pump the liquid transportation medium pressed into the resin storage tank back to the storage tank through the second pipeline;

[0008] The third pipeline is used to be connected with a resin receiving tank, and the resin temporarily stored in the storage tank is transported to the resin receiving tank through the third pipeline.

[0009] Preferably, the device further includes a buffer tank, which is connected to the storage tank through a buffer pipe, and the buffer pipe extends to the bottom of the buffer tank. The buffer tank is filled with a gas that is poorly soluble or insoluble in the liquid conveying medium. After the conveying device pumps the liquid conveying medium sent to the resin storage tank back to the storage tank through the second pipeline, the liquid conveying medium in the storage tank is further conveyed into the buffer tank through the buffer pipe for temporary storage. Moreover, the liquid conveying medium temporarily stored in the buffer tank is conveyed into the storage tank through the buffer pipe to make the pressure in the storage tank positive, and the resin temporarily stored in the storage tank is pumped and transferred to the resin receiving tank through the positive pressure and the third pipeline.

[0010] Preferably, the volume of the buffer tank is 1.5 - 2.5 times that of the storage tank, and the gas in the buffer tank is air.

[0011] Preferably, the second pipeline is also used to be connected to the resin receiving tank, the resin receiving tank is pre-filled with the liquid conveying medium, and the conveying device is also used to pump the liquid conveying medium pre-filled in the resin receiving tank into the storage tank through the second pipeline to make the pressure in the storage tank positive, and the resin temporarily stored in the storage tank is pumped and transferred to the resin receiving tank through the positive pressure.

[0012] Preferably, the second pipeline is also used to be connected to a liquid conveying medium supply device, and the conveying device is also used to pump the liquid conveying medium in the liquid conveying medium supply device into the storage tank to pre-fill the liquid conveying medium in the storage tank.

[0013] Preferably, the second pipeline includes a fourth pipe section, a fifth pipe section, a sixth pipe section, and a seventh pipe section, where:

[0014] Both ends of the fourth pipe section are respectively connected to the storage tank and the inlet of the conveying device. One end of the fifth pipe section is connected to the outlet of the conveying device, and the other end of the fifth pipe section is used to be connected to the resin storage tank. One end of the sixth pipe section is connected to the fifth pipe section, and the other end of the sixth pipe section is connected to the fourth pipe section. One end of the seventh pipe section is connected to the fifth pipe section, and the connection between the sixth pipe section and the fifth pipe section is between the connection between the seventh pipe section and the fifth pipe section and the conveying device. The other end of the seventh pipe section is connected to the fourth pipe section, and the connection between the seventh pipe section and the fourth pipe section is between the connection between the sixth pipe section and the fourth pipe section and the conveying device. A first valve is provided on the fourth pipe section between the connection between the seventh pipe section and the fourth pipe section and the connection between the sixth pipe section and the fourth pipe section. A second valve is provided on the fifth pipe section between the connection between the seventh pipe section and the fifth pipe section and the connection between the sixth pipe section and the fifth pipe section. A fourth valve is provided on the seventh pipe section, and a third valve is provided on the sixth pipe section. Wherein, the first valve is used to control the on-off of the fourth pipe section, the second valve is used to control the on-off of the fifth pipe section, the third valve is used to control the on-off of the sixth pipe section, and the fourth valve is used to control the on-off of the seventh pipe section.

[0015] Preferably, the third pipeline includes a second mixing device, an eighth pipe section, a ninth pipe section, and a tenth pipe section. The second mixing device is provided with a third inlet, a fourth inlet, and a second outlet, wherein:

[0016] Both ends of the eighth pipe section are respectively connected to the storage tank and the third inlet, and extend into the bottom of the storage tank for conveying the resin temporarily stored in the storage tank to the second mixing device;

[0017] Both ends of the ninth pipe section are respectively connected to the storage tank and the fourth inlet for conveying the liquid conveying medium in the storage tank to the second mixing device;

[0018] The second mixing device is used to mix the liquid conveying medium conveyed by the eighth pipe section with the resin conveyed by the ninth pipe section;

[0019] Both ends of the tenth pipe section are respectively connected to the second outlet and the resin receiving tank for transporting the mixture of the liquid conveying medium and the resin in the second mixing device to the resin receiving tank.

[0020] According to the second aspect of the present invention, a resin transfer vehicle is provided, which includes a vehicle body and the resin transfer device described above, and the resin transfer device is arranged on the vehicle body.

[0021] According to the third aspect of the present invention, a nuclear power plant system is provided, which includes a resin storage tank, a resin receiving tank, and also includes the resin transfer device described above, or also includes the resin transfer vehicle described above.

[0022] Preferably, the resin storage tank includes a tank body, a fourth pipeline, and a fifth pipeline, wherein:

[0023] One end of the fourth pipeline is connected to the tank body, and the other end of the fourth pipeline is used to be connected to the second pipeline to transport the pre-loaded liquid transfer medium in the storage tank to the tank body, and to transport the liquid transfer medium transported into the tank body back to the storage tank;

[0024] The fifth pipeline includes a first mixing device, a first pipe section, a second pipe section, and a third pipe section. The first mixing device is provided with a first inlet, a second inlet, and a first outlet. Two ends of the first pipe section are respectively connected to the bottom of the tank body and the first inlet, and a fifth valve is provided on the first pipe section. Two ends of the second pipe section are respectively connected to the tank body and the second inlet, and a sixth valve is provided on the second pipe section. One end of the third pipe section is connected to the first outlet, and the other end of the third pipe section is used to be connected to the first pipeline. Among them, the fifth valve is used to control the on-off of the first pipe section, and the sixth valve is used to control the on-off of the second pipe section; the first pipe section is used to transport the resin stored in the tank body to the first mixing device; the second pipe section is used to transport the liquid transfer medium transported into the tank body to the first mixing device; the first mixing device is used to mix the resin transported by the first pipe section with the liquid transfer medium transported by the second pipe section; the third pipe section is used to transport the mixture of the liquid transfer medium and the resin in the first mixing device to the first pipeline, so as to transport the resin stored in the resin storage tank to the storage tank for temporary storage through the first pipeline, and to receive the liquid transfer medium transported by the first pipeline and transport it to the tank body of the resin storage tank through the second pipe section.

[0025] Preferably, the resin storage tank is provided with a vent port.

[0026] According to the fourth aspect of the present invention, a resin transfer method is provided, which includes:

[0027] Resin loading: Pre-load a liquid transfer medium in the storage tank, and pump the liquid transfer medium in the storage tank to the resin storage tank to form a positive pressure in the resin storage tank, and under the action of the positive pressure, press the resin in the resin storage tank into the storage tank for temporary storage;

[0028] Resin unloading: Transfer the resin temporarily stored in the storage tank to the resin receiving tank.

[0029] Preferably, the method further includes:

[0030] Before resin loading, press the liquid transfer medium in the storage tank into the resin storage tank to perform backwashing on the resin storage tank, and pump the liquid transfer medium pressed into the resin storage tank back to the storage tank; and / or,

[0031] After the resin loading is completed, the liquid conveying medium pumped to the resin storage tank in the resin loading step is pumped back to the storage tank, and further the liquid conveying medium in the storage tank is pressured into the buffer tank filled with gas for temporary storage, so as to form a positive pressure in the buffer tank.

[0032] The beneficial effects of the present invention are as follows:

[0033] (1) The positive pressure conveying mode is adopted. Compared with the traditional negative pressure conveying mode, the conveying efficiency is high. Moreover, by using water as the liquid conveying medium, it can be ensured that the conveying equipment will not be blocked, and the resin loading route can be prevented from being blocked through backwashing.

[0034] (2) By setting the buffer tank, the system can realize both passive resin unloading and active resin unloading.

[0035] (3) In both the resin loading process and the resin unloading process, the resin and the liquid conveying medium (water) mixed conveying technology is adopted, and the pipeline is not easy to be blocked. Moreover, compared with the traditional technology, there is no need to set up stirring components (usually located in the storage tank), and the reliability of the whole device is higher. In addition, the sealing performance of the storage tank is more guaranteed, and the storage tank can be maintenance-free.

[0036] (4) In both the resin loading process and the resin unloading process, the liquid conveying medium (water) circulating conveying technology is adopted. The loading rate of the storage tank can be increased from the traditional 50% to more than 80%. Moreover, when the resin loading amount in the storage tank exceeds the standard, the resin can be returned to the resin storage tank along with the liquid conveying medium to prevent the storage tank from being overloaded.

[0037] (5) By setting the first valve and the second valve, the conveying concentration can be adjusted online during resin loading to ensure the conveying stability during resin loading; by setting the seventh valve and the eighth valve, the conveying concentration can be adjusted online during resin unloading to ensure the conveying stability during resin unloading.

[0038] (6) Pre-flushing can be carried out before resin loading to prevent the blockage risk caused by high initial conveying concentration during the subsequent resin loading process; re-flushing can be carried out after resin loading to completely solve the blockage problem caused by the deposition of resin in the conveying equipment and each pipeline.

[0039] (7) Pre-flushing can be carried out before resin unloading to prevent the blockage risk caused by high initial conveying concentration during the subsequent resin loading process; re-flushing can be carried out after resin loading to completely solve the blockage problem caused by the deposition of resin in the conveying equipment and each pipeline. Brief Description of the Drawings

[0040] Figure 1 It is a schematic structural diagram of the resin transfer device / resin transfer vehicle in the embodiment of the present invention;

[0041] Figure 2 Schematic diagram of the operation process of the resin transfer device / resin transfer vehicle during resin loading in the embodiment of the present invention;

[0042] Figure 3 Schematic diagram of the operation process of the resin transfer device / resin transfer vehicle during backwashing in the embodiment of the present invention;

[0043] Figure 4 Schematic diagram of the operation process of the resin transfer device / resin transfer vehicle after resin loading is completed in the embodiment of the present invention;

[0044] Figure 5 Schematic diagram of an operation process of the resin transfer device / resin transfer vehicle during resin unloading in the embodiment of the present invention;

[0045] Figure 6 Schematic diagram of another operation process of the resin transfer device / resin transfer vehicle during resin unloading in the embodiment of the present invention;

[0046] Figure 7 Flow chart of the resin transfer method in the embodiment of the present invention.

[0047] In the figure: 1 - storage tank; 2 - buffer tank; 3 - conveying equipment; 4 - first pipeline; 41 - eleventh valve; 5 - second pipeline; 51 - fourth pipe section; 52 - fifth pipe section; 53 - sixth pipe section; 54 - seventh pipe section; 55 - first valve; 56 - second valve; 57 - third valve; 58 - fourth valve; 6 - third pipeline; 61 - second mixing equipment; 62 - eighth pipe section; 63 - ninth pipe section; 64 - tenth pipe section; 65 - seventh valve; 66 - eighth valve; 67 - ninth valve; 7 - resin storage tank; 70 - tank body; 71 - fourth pipeline, 711 - twelfth valve; 72 - fifth pipeline; 721 - first mixing equipment; 722 - first pipe section; 723 - second pipe section; 724 - third pipe section; 725 - fifth valve; 726 - sixth valve; 8 - resin receiving tank; 81 - sixth pipeline; 811 - thirteenth valve; 82 - seventh pipeline; 821 - fourteenth valve; 9 - buffer pipe; 91 - tenth valve; 10 - resin transfer device; 11 - resin transfer vehicle; 12 - first quick connector; 13 - second quick connector; 14 - third quick connector. Detailed implementation manners

[0048] To enable those skilled in the art to better understand the technical solutions of the present invention, the following will clearly and completely describe the technical solutions in the present invention in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0049] In the description of the present invention, it should be noted that the terms such as "upper" indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0050] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0051] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected", "arranged", "installed", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection or a detachable connection, or an integral connection; it may be directly connected or indirectly connected through an intermediate medium, or it may be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0052] Embodiment 1

[0053] As Figures 1-6 shown, this embodiment discloses a resin transfer device, which includes a storage tank 1 and a conveying device 3. The storage tank 1 is pre-filled with a liquid conveying medium. The storage tank 1 is connected with a first pipeline 4, a second pipeline 5, and a third pipeline 6, wherein:

[0054] Both the first pipeline 4 and the second pipeline 5 are used to connect with the resin storage tank 7. The conveying device 3 is arranged on the second pipeline 5 and is used to pump the pre-loaded liquid conveying medium in the storage tank 1 through the second pipeline 5 to the resin storage tank 7 to form a positive pressure in the resin storage tank 7, and use the positive pressure to press the resin stored in the resin storage tank 7 through the first pipeline 4 into the storage tank 1 for temporary storage, so as to realize resin loading. In addition, it is used to pressurize the storage tank 1, so that the pre-loaded liquid conveying medium in the storage tank 1 is pressed into the resin storage tank 7 through the first pipeline 4 before resin loading, and the liquid conveying medium pressed into the resin storage tank 7 is pumped back to the storage tank 1 through the second pipeline 5 to backwash the resin storage tank 7. In this way, the resin caked in the resin storage tank 7 due to long-term deposition and storage can be broken, and it can play a role in dredging the resin loading route 4, and solve the blockage problem caused by resin deposition;

[0055] The third pipeline 6 is used to connect with the resin receiving tank 8, and the resin temporarily stored in the storage tank 1 is transported to the resin receiving tank 8 through the third pipeline 6 to complete resin unloading.

[0056] Specifically, the first pipeline 4 is connected to the top or upper part of the storage tank 1, and an eleventh valve 41 is arranged on the first pipeline 4, and the eleventh valve 41 is used to control the on-off of the first pipeline 4.

[0057] The second pipeline 5 specifically includes a fourth pipe section 51, a fifth pipe section 52, a sixth pipe section 53, and a seventh pipe section 54, where: both ends of the fourth pipe section 51 are respectively connected to the upper part or top of the storage tank 1 and the inlet of the conveying device 3; one end of the fifth pipe section 52 is connected to the outlet of the conveying device 3, and the other end of the fifth pipe section 52 is used to connect with the resin storage tank 7; one end of the sixth pipe section 53 is connected to the fifth pipe section 52, and the other end of the sixth pipe section 53 is connected to the fourth pipe section 51; one end of the seventh pipe section 54 is connected to the fifth pipe section 52, and the connection point of the sixth pipe section 53 and the fifth pipe section 52 is between the connection point of the seventh pipe section 54 and the fifth pipe section 52 and the conveying device 3, the other end of the seventh pipe section 54 is connected to the fourth pipe section 51, and the connection point of the seventh pipe section 54 and the fourth pipe section 51 is between the connection point of the sixth pipe section 53 and the fourth pipe section 51 and the conveying device 3; a first valve 55 is arranged on the fourth pipe section 51 between the connection point of the seventh pipe section 54 and the fourth pipe section 51 and the connection point of the sixth pipe section 53 and the fourth pipe section 51, a second valve 56 is arranged on the fifth pipe section 52 between the connection point of the seventh pipe section 54 and the fifth pipe section 52 and the connection point of the sixth pipe section 53 and the fifth pipe section 52, a fourth valve 58 is arranged on the seventh pipe section 54, and a third valve 57 is arranged on the sixth pipe section 53. Among them, the first valve 55 is used to control the on-off of the fourth pipe section 51, the second valve 56 is used to control the on-off of the fifth pipe section 52, the third valve 57 is used to control the on-off of the sixth pipe section 53, and the fourth valve 58 is used to control the on-off of the seventh pipe section 54.

[0058] During backwashing, as Figure 3 shown, open the third valve 57 and the fourth valve 58, close the first valve 55 and the second valve 56, connect the second pipeline 5, open the eleventh valve 41, connect the first pipeline 4, start the conveying device 3, pressurize the storage tank 1, so as to pump the pre-loaded liquid conveying medium in the storage tank 1 through the first pipeline 4 to the resin storage tank 7, and at the same time, pump the liquid conveying medium conveyed to the resin storage tank 7 back to the storage tank 1 through the second pipeline 5.

[0059] During resin loading, as Figure 2 shown, open the first valve 55 and the second valve 56, close the third valve 57 and the fourth valve 58, connect the second pipeline 5, open the eleventh valve 41, connect the first pipeline 4, start the conveying device 3, pump the pre-loaded liquid conveying medium in the storage tank 1 through the second pipeline 5 to the resin storage tank 7 and be located above the resin storage tank, and the resin is located below the resin storage tank 7, so as to form a positive pressure in the resin storage tank 7, and press the resin stored in the resin storage tank 7 through the formed positive pressure to the storage tank 1 for temporary storage through the first pipeline 4.

[0060] Specifically, the third pipeline 6 includes a second mixing device 61, an eighth pipe section 62, a ninth pipe section 63, and a tenth pipe section 64. The second mixing device 61 is provided with a third inlet, a fourth inlet, and a second outlet. Among them: both ends of the eighth pipe section 62 are respectively connected to the storage tank 1 and the third inlet and extend to the bottom of the storage tank 1 for conveying the resin temporarily stored in the storage tank 1 to the second mixing device 61. A seventh valve is provided on the eighth pipe section 62 to control the on-off of the eighth pipe section; both ends of the ninth pipe section 63 are respectively connected to the storage tank 1 and the fourth inlet, and the connection part of the ninth pipe section 63 and the storage tank 1 is located at the top or upper part of the storage tank 1. The ninth pipe section 63 is used for conveying the liquid conveying medium in the storage tank 1 to the second mixing device 61. An eighth valve 66 is provided on the ninth pipe section 63 to control the on-off of the ninth pipe section; the second mixing device 61 is used for mixing the liquid conveying medium conveyed by the eighth pipe section 62 and the resin conveyed by the ninth pipe section 63; both ends of the tenth pipe section 64 are respectively connected to the second outlet and the resin receiving tank 8 and are used for transferring the mixture of the liquid conveying medium and the resin in the second mixing device 61 to the resin receiving tank 8. A ninth valve 67 is provided on the tenth pipe section 64 to control the on-off of the tenth pipe section.

[0061] In this embodiment, the second mixing device 61 includes a main body container. The third inlet, the fourth inlet, and the second outlet are all provided on the main body container and communicate with the internal space of the main body container. Among them, the third inlet is provided on the upper part of the main body container, the fourth inlet is provided on the upper part or the top of the main body container, and the second outlet is provided on the lower part of the main body container and is opposite to the third inlet.

[0062] In this embodiment, the liquid delivery medium is preferably water.

[0063] In this embodiment, the conveying device 3 is preferably a centrifugal pump. Of course, it can also be a hose pump, a screw pump, a diaphragm pump, etc., and can be specifically selected according to the conveying effect.

[0064] In this embodiment, one end of the first pipeline 4 for connecting to the resin storage tank 7 is provided with a first quick-connect joint 12. One end of the fifth pipe section 52 in the second pipeline 5 for connecting to the resin storage tank 7 is provided with a second quick-connect joint 13. One end of the tenth pipe section 64 in the third pipeline 6 for connecting to the resin receiving tank 8 is provided with a third quick-connect joint 14.

[0065] In this embodiment, a baffle is provided in the storage tank 1, and the baffle is between the fourth pipe section 51 and the first pipeline 4 to separate the resin conveyed by the first pipeline 4 from the fourth pipe section 51, so as to prevent the resin conveyed to the storage tank 1 from being directly drawn out through the fourth pipe section 51.

[0066] In some embodiments, the device further includes a buffer tank 2. The buffer tank 2 is connected to the storage tank 1 through a buffer pipe 9, and the buffer pipe 9 extends into the bottom of the buffer tank 2. The buffer tank 2 is filled with a gas that is poorly soluble or insoluble in the liquid delivery medium. After the liquid delivery medium pumped to the resin storage tank 7 by the conveying device 3 is pumped back to the storage tank 1 through the second pipeline 5, the liquid delivery medium in the storage tank 1 is further conveyed into the buffer tank 2 through the buffer pipe 9 for temporary storage, so that a positive pressure is formed in the buffer tank 2. And, during resin unloading, the buffer pipe 9 is connected, and the positive pressure in the buffer tank 2 is used to convey the liquid delivery medium temporarily stored in the buffer tank 2 to the storage tank 1 through the buffer pipe 9, so that the pressure in the storage tank 1 is positive pressure, and the resin temporarily stored in the storage tank 1 is pumped and transferred to the resin receiving tank 8 through the third pipeline 6 by the positive pressure, thereby realizing passive resin unloading.

[0067] Specifically, the volume of the buffer tank 2 is 1.5 - 2.5 times the volume of the storage tank, and can be specifically selected according to the magnitude of the target pressure value of the positive pressure in the buffer tank. In this embodiment, the volume of the buffer tank 2 is preferably 2 times the volume of the storage tank 1, and the target pressure value of the positive pressure in the buffer tank can be 200 KPa. The gas in the buffer tank is air. A tenth valve 91 is provided on the buffer pipe 9 to control the on-off of the buffer pipe 9.

[0068] After the resin loading is completed, such as Figure 4As shown, close the eleventh valve 41 to disconnect the first pipeline 4, and open the tenth valve 91, the third valve 57, and the fourth valve 58 to connect the buffer pipe 9 and the second pipeline 5. Start the conveying device 3 to pump the liquid conveying medium that transports the resin to the resin storage tank 7 during resin loading back to the storage tank 1 through the second pipeline 5, and further press the liquid conveying medium returned to the storage tank 1 to the buffer tank 2 for temporary storage through the buffer pipe 9, so that a positive pressure is formed in the buffer tank 2.

[0069] During passive resin unloading, as Figure 5 shown, open the tenth valve 91, the seventh valve 65, the eighth valve 66, and the ninth valve 67, so that the liquid conveying medium temporarily stored in the buffer tank 2 is pressed to the storage tank 1 through the buffer pipe 9 under the action of the positive pressure in the buffer tank 2 to form a positive pressure in the storage tank 1, and the resin temporarily stored in the storage tank 1 is pressed to the second mixing device 61 through the eighth pipe section 62 by the positive pressure formed in the storage tank 1. At the same time, the liquid conveying medium in the storage tank 1 is pressed to the second mixing device 61 through the ninth pipe section 63. The resin and the liquid conveying medium are passively mixed in the second mixing device 61 without a stirring power source. After that, the mixture of the resin and the liquid conveying medium is transferred to the resin receiving tank 8 through the tenth pipe section 64. And by adjusting the opening degrees of the seventh valve 65 and the eighth valve 66, the ratio of the resin to the liquid conveying medium can be adjusted during resin unloading, that is, the conveying concentration can be adjusted online, so as to ensure the conveying stability. In this embodiment, the conveying concentration can reach more than 80% and ensure no blockage.

[0070] In some embodiments, the second pipeline 5 is also used to connect to the resin receiving tank 8, and the liquid conveying medium is pre-loaded in the resin receiving tank 8. The conveying device 3 is also used to pump the liquid conveying medium pre-loaded in the resin receiving tank 8 to the storage tank 1 through the second pipeline 5 to make the pressure in the storage tank positive, and press and transfer the resin temporarily stored in the storage tank 1 to the resin receiving tank 8 through the positive pressure, so as to realize active resin unloading.

[0071] Specifically, the fifth pipe section 52 in the second pipeline 5 is connected to the top or upper part of the resin receiving tank 8 through the second quick connector 13.

[0072] During active resin unloading, as Figure 6As shown, open the seventh valve 65, the eighth valve 66, the ninth valve 67, the third valve 57, and the fourth valve 58, close the first valve 55 and the second valve 56, and start the conveying device 3, so as to pump the pre-loaded liquid conveying medium in the resin receiving tank 8 to the storage tank 1 to form a positive pressure in the storage tank 1, and through the positive pressure formed in the storage tank 1, the resin temporarily stored in the storage tank 1 is pressed through the eighth pipe section 62 to the second mixing device 61. At the same time, the liquid conveying medium in the storage tank 1 is pressed through the ninth pipe section 63 to the second mixing device 61. The resin and the liquid conveying medium are passively mixed in the second mixing device 61 without the need for a stirring power source. After that, the mixture of the resin and the liquid conveying medium is transferred to the resin receiving tank 8 through the tenth pipe section 64.

[0073] In some embodiments, the second pipeline 5 is also used to be connected to a liquid conveying medium supply device (not shown in the figure). Specifically, the fifth pipe section is connected to the liquid conveying medium supply device through the second quick connector 13. The conveying device 3 is also used to pump the liquid conveying medium in the liquid conveying medium supply device to the storage tank 1 to pre-load the liquid conveying medium in the storage tank 1.

[0074] The resin transfer device of this embodiment is applicable to the transfer of radioactive resin in nuclear power plants and has the following advantages:

[0075] (1) The positive pressure conveying method is adopted. Compared with the traditional negative pressure conveying method, the conveying efficiency is high. Moreover, by using water as the liquid conveying medium, it can be ensured that the conveying device will not be blocked, and the resin loading route can be prevented from being blocked through backwashing.

[0076] (2) By setting up a buffer tank, this device can not only achieve passive resin unloading but also active resin unloading.

[0077] (3) The resin mixing and conveying technology with liquid conveying medium (water) is adopted in both the resin loading process and the resin unloading process. The pipeline is not easy to be blocked. Moreover, compared with the traditional technology, there is no need to set up stirring components (usually located in the storage tank), and the reliability of the whole device is higher. In addition, the sealing performance of the storage tank is more guaranteed, and the storage tank can be maintenance-free.

[0078] (4) The liquid conveying medium (water) circulation conveying technology is adopted in both the resin loading process and the resin unloading process. The loading rate of the storage tank can be increased from the traditional 50% to more than 80%. Moreover, when the resin loading amount in the storage tank exceeds the standard, the resin can be returned to the resin storage tank along with the liquid conveying medium to prevent the storage tank from being overloaded.

[0079] (5) By setting the seventh valve and the eighth valve, the conveying concentration can be adjusted online during resin unloading to ensure the conveying stability.

[0080] Embodiment 2

[0081] This embodiment discloses a resin transfer vehicle, which includes a vehicle body and the resin transfer device described in Embodiment 1, and the resin transfer device is arranged on the vehicle body.

[0082] The resin transfer vehicle of this embodiment has all the functions and advantages of the resin transfer device described in Embodiment 1, and moreover, it is convenient to move, has better flexibility and stronger applicability.

[0083] Embodiment 3

[0084] This embodiment discloses a nuclear power plant system, which includes a resin storage tank 7, a resin receiving tank 8, and further includes the resin transfer device 10 described in Embodiment 1, or further includes the resin transfer vehicle 11 described in Embodiment 2.

[0085] In some embodiments, as Figure 2 shown, the resin storage tank 7 includes a tank body 70, a fourth pipeline 71, and a fifth pipeline 72, wherein:

[0086] One end of the fourth pipeline 71 is connected to the upper part or the top of the tank body 70, and the other end of the fourth pipeline 71 is used to be connected to the second quick connector 13 on the fifth pipe segment 52 of the second pipeline 5, so as to transport the pre-installed liquid transmission medium in the storage tank 1 to the tank body 70, and transport the liquid transmission medium transported into the tank body 70 back to the storage tank 1. Moreover, a twelfth valve 711 may be provided on the fourth pipeline 71 to control the on-off of the fourth pipeline;

[0087] The fifth pipeline includes a first mixing device 721, a first pipe section 722, a second pipe section 723, and a third pipe section 724. The first mixing device 721 is provided with a first inlet, a second inlet, and a first outlet. The two ends of the first pipe section 722 are respectively connected to the bottom of the tank body 70 and the first inlet. A fifth valve 725 is provided on the first pipe section 722. The two ends of the second pipe section 723 are respectively connected to the upper part or the top of the tank body 70 and the second inlet. A sixth valve 726 is provided on the second pipe section 723. One end of the third pipe section 724 is connected to the first outlet, and the other end of the third pipe section 724 is used to be connected to the first quick-connect joint 12 on the first pipeline 4. Among them, the fifth valve 725 is used to control the on-off of the first pipe section 722, and the sixth valve 726 is used to control the on-off of the second pipe section 723; the first pipe section 722 is used to transport the resin stored in the tank body 1 to the first mixing device 721; the second pipe section 723 is used to transport the liquid conveying medium transported into the tank body 70 to the first mixing device 721; the first mixing device 721 is used to mix the resin transported by the first pipe section 722 with the liquid conveying medium transported by the second pipe section 723; the third pipe section 724 is used to transport the mixture of the liquid conveying medium and the resin in the first mixing device 721 to the first pipeline 4, so as to transport the resin stored in the resin storage tank 7 to the storage tank 1 through the first pipeline 4 for temporary storage, and is used to receive the liquid conveying medium transported by the first pipeline 4 and transport it to the tank body 70 of the resin storage tank 7 through the second pipe section 723.

[0088] In this embodiment, the first mixing device 721 includes a container. The first inlet, the second inlet, and the first outlet are all arranged on the container and communicate with the internal space of the container. Among them, the first inlet is arranged on the upper part or the top of the container, the second inlet is arranged on the lower part of the container, and the first outlet is arranged on the lower part of the container and is opposite to the second inlet.

[0089] By adjusting the opening degrees of the fifth valve 725 and the sixth valve 726, the ratio of the resin to the liquid conveying medium can be adjusted during resin loading, that is, the conveying concentration can be adjusted online during resin loading, so as to ensure the conveying stability. In this embodiment, the conveying concentration can reach more than 80% and ensure no blockage.

[0090] In some embodiments, the resin storage tank 7 may also be provided with a vent port (not shown in the figure). At this time, a positive pressure cannot be formed in the resin storage tank 7 during resin loading. However, the resin in the resin storage tank 7 can be sucked into the storage tank 1 through the suction force at the outlet end of the resin storage tank 7 by the conveying device 3. That is to say, the device in this embodiment can realize resin transfer in both positive pressure conveying mode and negative pressure conveying mode.

[0091] In some embodiments, such as Figure 6A sixth pipeline 81 and a seventh pipeline 82 are connected to the resin receiving tank 8 shown. Among them: the sixth pipeline 81 is used to be connected to the second quick-connect joint 13 on the fifth pipe segment 52 in the second pipeline 5, and a thirteenth valve 811 is provided on the sixth pipeline 81. The thirteenth valve 811 is used to control the on / off of the sixth pipeline 81; the seventh pipeline 82 is used to be connected to the third quick-connect joint 14 on the tenth pipe segment 64 in the third pipeline 6, and a fourteenth valve 821 is provided on the seventh pipeline 82. The fourteenth valve 821 is used to control the on / off of the seventh pipeline 82.

[0092] The working process of the nuclear power plant system in this embodiment will be described in detail as follows:

[0093] Backwashing: As Figure 3 shown, open the third valve 57, the fourth valve 58, the eleventh valve 41, and the fifth valve 725, close the first valve 55, the second valve 56, the sixth valve 726, and other valves, and start the conveying device 3 to pressurize the storage tank 1, so as to sequentially convey the pre-loaded liquid conveying medium (water) in the storage tank 1 through the first pipeline 4, the third pipe segment 724, and the first pipe segment 722 to the resin storage tank 7. At the same time, the liquid conveying medium conveyed to the resin storage tank 7 is pumped back to the storage tank 1 through the second pipeline 5.

[0094] Resin loading: As Figure 2As shown, open the first valve 55, the second valve 56, the twelfth valve 711, the eleventh valve 41, and the sixth valve 726, close the third valve 57, the fourth valve 58, the fifth valve 725, and other valves, start the conveying device 3, and convey the pre-loaded liquid conveying medium (water) in the storage tank 1 to the resin storage tank 7 successively through the second pipeline 5 and the fourth pipeline 71, so as to form a positive pressure in the resin storage tank 7, and use the formed positive pressure to convey the liquid conveying medium pumped into the resin storage tank 7 through the second pipe section 723, the third pipe section 724, and the first pipeline 4 to the storage tank 1. This process can pre-flush the resin loading route, which can not only dredge the resin loading route, but also make the resin loading route full of the liquid conveying medium water, preventing the blockage risk caused by the high initial conveying concentration of resin during the subsequent resin loading process. When the resin loading route operates stably, gradually open the fifth valve 725, so that the resin stored in the resin storage tank 7 is pressed to the first mixing device 721 through the first pipe section 722 and is non-actively mixed with the liquid conveying medium pressed into the first mixing device 721 through the second pipe section 723, and then, successively pass through the third pipe section 724 and the first pipeline 4 and are pressed into the storage tank 1 for temporary storage until the resin loading is completed. After the resin loading is completed, first close the fifth valve 725, and use the liquid conveying medium circulation to re-flush the resin loading route again, which can completely solve the blockage problem caused by the deposition of resin in the conveying device and each pipeline. Then, close the conveying device 3 and related valves.

[0095] And, for the case where the resin storage tank 7 does not allow the storage of excess water, after the loading is completed, as Figure 4 shown, open the tenth valve 91, the third valve 57, and the fourth valve 58, close the eleventh valve 41 and other valves, start the conveying device 3, pump the liquid conveying medium conveyed to the resin storage tank 7 during resin loading back to the storage tank 1 through the second pipeline 5, and further press the liquid conveying medium returned to the storage tank 1 to the buffer tank 2 for temporary storage through the buffer pipe 9. At this time, a positive pressure will be formed in the buffer tank 2, and the positive pressure can be used for passive resin unloading.

[0096] Passive resin unloading: As Figure 5As shown in the figure, an empty resin receiving tank 8 is adopted, and an exhaust gas discharge pipe is arranged on the resin receiving tank 8. The tenth valve 91, the seventh valve 65, the eighth valve 66, the ninth valve 67, and the fourteenth valve 821 are opened, and other valves are closed. Under the action of the positive pressure in the buffer tank 2, the liquid transfer medium (water) temporarily stored in the buffer tank 2 is transported through the buffer pipe 9 to the storage tank 1 by the transfer medium pressure, so that a positive pressure is formed in the storage tank 1. And through the positive pressure formed in the storage tank 1, the resin temporarily stored in the storage tank 1 is transported to the second mixing device 61 through the eighth pipe section 62. At the same time, the liquid transfer medium in the storage tank 1 is transported to the second mixing device 61 through the ninth pipe section 63. The resin and the liquid transfer medium are non-actively mixed in the second mixing device 61. After that, the mixture of the resin and the liquid transfer medium is sequentially transported to the resin receiving tank 8 through the tenth pipe section 64 and the seventh pipeline 82, and the air in the resin receiving tank is discharged through the exhaust gas discharge pipe.

[0097] Passive resin unloading: As Figure 6 shown in the figure, a resin receiving tank filled with a liquid transfer medium (water) is adopted. The eighth valve 66, the ninth valve 67, the fourteenth valve 821, the thirteenth valve 811, the third valve 57, and the fourth valve 58 are opened. The first valve 55, the second valve 56, the seventh valve 65, the tenth valve 91, and other valves are closed, and the conveying device 3 is started. The liquid transfer medium pre-loaded in the resin receiving tank 8 is sequentially pumped to the storage tank 1 through the second pipeline 5 and the sixth pipeline 81, so that a positive pressure is formed in the storage tank 1. And through the positive pressure formed in the storage tank 1, the liquid transfer medium in the storage tank 1 is sequentially transported to the resin receiving tank through the ninth pipe section 63, the tenth pipe section 64, and the seventh pipeline 82. This process can pre-rinse the resin unloading route, which can not only play the role of dredging the resin unloading route, but also make the resin unloading route filled with the liquid transfer medium water, preventing the blockage risk caused by the high initial conveying concentration during the subsequent resin unloading process. When the resin unloading route runs stably, the seventh valve 65 is gradually opened, so that the resin temporarily stored in the storage tank 1 is transported to the second mixing device 61 through the eighth pipe section 62 and is non-actively mixed with the liquid transfer medium transported to the second mixing device 61 through the ninth pipe section 63. After that, it is sequentially transported to the resin receiving tank 8 through the tenth pipe section 64 and the seventh pipeline 82 until the resin unloading is completed. After the resin unloading is completed, the seventh valve 65 is first closed, and the resin unloading route is re-rinsed again by using the liquid transfer medium circulation, which can completely solve the blockage problem caused by the deposition of resin in the resin unloading route. After that, the conveying device 3 and the relevant valves are closed.

[0098] The nuclear power plant system of this embodiment has the following advantages:

[0099] (1) The positive pressure conveying method is adopted. Compared with the traditional negative pressure conveying method, the conveying efficiency is high. Moreover, by using water as the liquid conveying medium, it can be ensured that the conveying equipment will not be blocked, and resin loading route blockage can be prevented through backwashing.

[0100] (2) By providing a buffer tank, the system can achieve both passive resin unloading and active resin unloading.

[0101] (3) In both the resin loading process and the resin unloading process, the resin and liquid conveying medium (water) mixed conveying technology is adopted. The pipeline is not easily blocked. Moreover, compared with the traditional technology, there is no need to set up stirring components (usually located in the storage tank), and the reliability of the entire device is higher. In addition, the tightness of the storage tank is more guaranteed, and the storage tank can be maintenance-free.

[0102] (4) In both the resin loading process and the resin unloading process, the liquid conveying medium (water) circulating conveying technology is adopted. The loading rate of the storage tank can be increased from the traditional 50% to more than 80%. Moreover, when the resin loading amount in the storage tank exceeds the standard, the resin can be returned to the resin storage tank along with the liquid conveying medium to prevent the storage tank from being overloaded.

[0103] (5) By providing a first valve and a second valve, the conveying concentration can be adjusted online during resin loading to ensure the conveying stability during resin loading; by providing a seventh valve and an eighth valve, the conveying concentration can be adjusted online during resin unloading to ensure the conveying stability during resin unloading.

[0104] (6) Pre-flushing can be carried out before resin loading to prevent the blockage risk caused by high initial conveying concentration during the subsequent resin loading process; re-flushing can be carried out after resin loading is completed to completely solve the blockage problem caused by the deposition of resin in the conveying equipment and each pipeline.

[0105] (7) Pre-flushing can be carried out before resin unloading to prevent the blockage risk caused by high initial conveying concentration during the subsequent resin loading process; re-flushing can be carried out after resin loading is completed to completely solve the blockage problem caused by the deposition of resin in the conveying equipment and each pipeline.

[0106] Example 4

[0107] As Figure 7 shown, this example discloses a resin transfer method for the resin transfer device 10 described in Example 1, the resin transfer vehicle 11 described in Example 2, and the nuclear power plant system described in Example 3, which includes:

[0108] Resin Loading: Preload the liquid conveying medium in storage tank 1, and pump the liquid conveying medium in storage tank 1 to resin storage tank 7 to create a positive pressure in resin storage tank 1. Under the action of the positive pressure, the resin in resin storage tank 7 is pressed into storage tank 1 for temporary storage;

[0109] Resin Unloading: Transfer the resin temporarily stored in storage tank 1 to resin receiving tank 8.

[0110] Specifically, during resin loading, as Figure 2 shown, open the first valve 55, the second valve 56, the twelfth valve 711, the eleventh valve 41, and the sixth valve 726, close the third valve 57, the fourth valve 58, the fifth valve 725, and other valves, start the conveying device 3, and pump the preloaded liquid conveying medium (water) in storage tank 1 through the second pipeline 5 and the fourth pipeline 71 to resin storage tank 7 in sequence, so as to create a positive pressure in resin storage tank 7. Through the positive pressure, the liquid conveying medium pumped into resin storage tank 7 passes through the second pipe section 723, the third pipe section 724, and the first pipeline 4 in sequence and is pressed into storage tank 1 to pre-flush the resin loading route. When the resin loading route runs stably, gradually open the fifth valve 725, so that the resin stored in resin storage tank 7 is pressed into the first mixing device 721 through the first pipe section 722 and is non-actively mixed with the liquid conveying medium sent to the first mixing device 721 through the second pipe section 723, and then passes through the third pipe section 724 and the first pipeline 4 in sequence and is pressed into storage tank 1 for temporary storage until the resin loading is completed. After the resin loading is completed, first close the fifth valve 725, and use the liquid conveying medium circulation to re-flush the resin loading route again, and then close the conveying device 3 and related valves.

[0111] In this embodiment, the method further includes: before resin loading, press the liquid conveying medium in storage tank 1 to resin storage tank 7 to perform backwashing on resin storage tank 7, and pump the liquid conveying medium pressed into resin storage tank 7 back to storage tank 1. Through backwashing, the resin caked in resin storage tank 7 due to long-term deposition and storage can be broken, and it can play a role in dredging the resin loading route 4 to solve the blockage problem caused by resin deposition.

[0112] Specifically, as Figure 3 shown, open the third valve 57, the fourth valve 58, the eleventh valve 41, and the fifth valve 725, close the first valve 55, the second valve 56, the sixth valve 726, and other valves, and start the conveying device 3. Pump the preloaded liquid conveying medium (water) in storage tank 1 through the first pipeline 4, the third pipe section 724, and the first pipe section 722 to resin storage tank 7 in sequence, and at the same time pump the liquid conveying medium conveyed to resin storage tank 7 back to storage tank 1 through the second pipeline 5.

[0113] In this embodiment, the method further includes: after the resin loading is completed, pumping back the liquid conveying medium pumped to the resin storage tank 7 in the resin loading step to the storage tank 1, and further pumping the liquid conveying medium in the storage tank 1 into the buffer tank 2 filled with gas for temporary storage. This process can solve the problem of excess water in the resin storage tank after resin loading, and can also form a positive pressure in the buffer tank. The positive pressure can be used for passive resin unloading.

[0114] Specifically, resin unloading can adopt a passive resin unloading method or an active resin unloading method, where:

[0115] Passive resin unloading: First, as Figure 4 shown, open the tenth valve 91, the third valve 57, and the fourth valve 58, close the eleventh valve 41 and other valves, start the conveying device 3, pump back the liquid conveying medium conveyed to the resin storage tank 7 during resin loading through the second pipeline 5 to the storage tank 1, and further press the liquid conveying medium returned to the storage tank 1 into the buffer tank 2 for temporary storage through the buffer pipe 9, and a positive pressure will be formed in the buffer tank 2. Then, as Figure 5 shown, use an empty resin receiving tank 8 with an exhaust gas discharge pipe, open the tenth valve 91, the seventh valve 65, the eighth valve 66, the ninth valve 67, and the fourteenth valve 821, close other valves, and use the positive pressure in the buffer tank 2 to press the liquid conveying medium (water) temporarily stored in the buffer tank 2 into the storage tank 1 through the buffer pipe 9 to form a positive pressure in the storage tank 1, and use the positive pressure formed in the storage tank 1 to press the resin temporarily stored in the storage tank 1 into the second mixing device 61 through the eighth pipe section 62. At the same time, press the liquid conveying medium in the storage tank 1 into the second mixing device 61 through the ninth pipe section 63. The resin and the liquid conveying medium are passively mixed in the second mixing device 61. After that, the mixture of the resin and the liquid conveying medium is transferred to the resin receiving tank 8 through the tenth pipe section 64 and the seventh pipeline 82 in sequence, and the air in the resin receiving tank is discharged through the exhaust gas discharge pipe.

[0116] Active resin unloading: As Figure 6As shown, a resin receiving tank 8 filled with a liquid conveying medium (water) is adopted. The eighth valve 66, the ninth valve 67, the fourteenth valve 821, the thirteenth valve 811, the third valve 57, and the fourth valve 58 are opened, the first valve 55, the second valve 56, the seventh valve 65, the tenth valve 91, and other valves are closed, and the conveying device 3 is started. The liquid conveying medium pre-loaded in the resin receiving tank 8 is sequentially pumped to the storage tank 1 through the second pipeline 5 and the sixth pipeline 81 to form a positive pressure in the storage tank 1, and the liquid conveying medium in the storage tank 1 is sequentially pressed to the resin receiving tank through the ninth pipe section 63, the tenth pipe section 64, and the seventh pipeline 82 by the positive pressure formed in the storage tank 1. This process can pre-rinse the resin unloading route. After the resin unloading route operates stably, the seventh valve 65 is gradually opened, so that the resin temporarily stored in the storage tank 1 is pressed to the second mixing device 61 through the eighth pipe section 62 and non-actively mixed with the liquid conveying medium pressed to the second mixing device 61 through the ninth pipe section 63, and then, it is sequentially pressed to the resin receiving tank 8 through the tenth pipe section 64 and the seventh pipeline 82 until the resin unloading is completed. After the resin unloading is completed, the seventh valve 65 is first closed, and the resin unloading route is re-rinsed again by using the liquid conveying medium circulation. Then, the conveying device 3 and the relevant valves are closed.

[0117] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present invention. However, the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. A resin transfer device, characterized in that, including a storage tank (1) and a conveying device (3), the storage tank is pre-filled with a liquid conveying medium, and a first pipeline (4), a second pipeline (5), and a third pipeline (6) are connected to the storage tank, both the first pipeline and the second pipeline are used to be connected to a resin storage tank (7), the conveying device is arranged on the second pipeline and is used to pump the liquid conveying medium pre-filled in the storage tank through the second pipeline to the resin storage tank to form a positive pressure in the resin storage tank, and use the positive pressure to press the resin stored in the resin storage tank through the first pipeline into the storage tank for temporary storage, and is used to pressurize the storage tank to press the liquid conveying medium pre-filled in the storage tank through the first pipeline into the resin storage tank, and pump the liquid conveying medium pressed into the resin storage tank back to the storage tank through the second pipeline; the third pipeline is used to be connected to a resin receiving tank (8), and transfer the resin temporarily stored in the storage tank to the resin receiving tank through the third pipeline; the third pipeline (6) includes a second mixing device (61), an eighth pipe section (62), a ninth pipe section (63), and a tenth pipe section (64), and the second mixing device is provided with a third inlet, a fourth inlet, and a second outlet, both ends of the eighth pipe section are respectively connected to the storage tank and the third inlet, and extend into the bottom of the storage tank for conveying the resin temporarily stored in the storage tank to the second mixing device; both ends of the ninth pipe section are respectively connected to the storage tank and the fourth inlet for conveying the liquid conveying medium in the storage tank to the second mixing device; the second mixing device is used to mix the liquid conveying medium conveyed by the eighth pipe section with the resin conveyed by the ninth pipe section; both ends of the tenth pipe section are respectively connected to the second outlet and the resin receiving tank for transferring the mixture of the liquid conveying medium and the resin in the second mixing device to the resin receiving tank.

2. The resin transfer device according to claim 1, wherein further including a buffer tank (2), the buffer tank is connected to the storage tank through a buffer pipe (9), and the buffer pipe extends into the bottom of the buffer tank. The buffer tank is filled with a gas that is poorly soluble or insoluble in the liquid conveying medium, after the conveying device pumps the liquid conveying medium pressed into the resin storage tank back to the storage tank through the second pipeline, further convey the liquid conveying medium in the storage tank to the buffer tank for temporary storage through the buffer pipe, and convey the liquid conveying medium temporarily stored in the buffer tank to the storage tank through the buffer pipe, so that the pressure in the storage tank is positive pressure, and transfer the resin temporarily stored in the storage tank to the resin receiving tank by means of the positive pressure through the third pipeline.

3. The resin transfer device according to claim 2, characterized in that, the volume of the buffer tank (2) is 1.5 - 2.5 times the volume of the storage tank, and the gas in the buffer tank is air.

4. The resin transfer device according to claim 1, characterized in that, the second pipeline (5) is also used to be connected to the resin receiving tank (8), and the resin receiving tank is pre-filled with the liquid conveying medium, the conveying device (3) is also used to pump the liquid conveying medium pre-filled in the resin receiving tank through the second pipeline to the storage tank, so that the pressure in the storage tank is positive pressure, and press and transfer the resin temporarily stored in the storage tank to the resin receiving tank by means of the positive pressure.

5. The resin transfer device according to claim 1, characterized in that, the second pipeline is also used to be connected to a liquid conveying medium supply device, The conveying device is also used to pump the liquid conveying medium in the liquid conveying medium supply device into the storage tank to preload the liquid conveying medium in the storage tank.

6. The resin transfer device according to any one of claims 1 to 5, characterized in that: The second pipeline (5) includes a fourth pipe section (51), a fifth pipe section (52), a sixth pipe section (53), and a seventh pipe section (54). Both ends of the fourth pipe section are respectively connected to the storage tank and the inlet of the conveying device. One end of the fifth pipe section is connected to the outlet of the conveying device, and the other end of the fifth pipe section is used to be connected to the resin storage tank. One end of the sixth pipe section is connected to the fifth pipe section, and the other end of the sixth pipe section is connected to the fourth pipe section. One end of the seventh pipe section is connected to the fifth pipe section, and the connection between the sixth pipe section and the fifth pipe section is between the connection between the seventh pipe section and the fifth pipe section and the conveying device. The other end of the seventh pipe section is connected to the fourth pipe section, and the connection between the seventh pipe section and the fourth pipe section is between the connection between the sixth pipe section and the fourth pipe section and the conveying device. A first valve (55) is provided on the fourth pipe section between the connection between the seventh pipe section and the fourth pipe section and the connection between the sixth pipe section and the fourth pipe section. A second valve (56) is provided on the fifth pipe section between the connection between the seventh pipe section and the fifth pipe section and the connection between the sixth pipe section and the fifth pipe section. A fourth valve (58) is provided on the seventh pipe section. A third valve (57) is provided on the sixth pipe section. Among them, the first valve is used to control the on-off of the fourth pipe section, the second valve is used to control the on-off of the fifth pipe section, the third valve is used to control the on-off of the sixth pipe section, and the fourth valve is used to control the on-off of the seventh pipe section.

7. A resin transporter, comprising a vehicle body, characterized in that, It further includes the resin transfer device according to any one of claims 1-6. The resin transfer device is provided on the vehicle body.

8. A nuclear power plant system, comprising a resin storage tank (7) and a resin receiving tank (8), characterized in that, It further includes the resin transfer device (10) according to any one of claims 1-6, or it further includes the resin transfer vehicle (11) according to claim 7.

9. The nuclear power plant system according to claim 8, wherein The resin storage tank (7) includes a tank body (70), a fourth pipeline (71), and a fifth pipeline (72). One end of the fourth pipeline is connected to the tank body, and the other end of the fourth pipeline is used to be connected to the second pipeline to transport the preloaded liquid transmission medium in the storage tank to the tank body, and to transport the liquid transmission medium transported into the tank body back to the storage tank. The fifth pipeline includes a first mixing device (721), a first pipe section (722), a second pipe section (723), and a third pipe section (724). The first mixing device is provided with a first inlet, a second inlet, and a first outlet. Both ends of the first pipe section are respectively connected to the bottom of the tank body and the first inlet, and a fifth valve (725) is provided on the first pipe section. Both ends of the second pipe section are respectively connected to the tank body and the second inlet, and a sixth valve (726) is provided on the second pipe section. One end of the third pipe section is connected to the first outlet, and the other end of the third pipe section is used to be connected to the first pipeline. Among them, the fifth valve is used to control the on-off of the first pipe section, and the sixth valve is used to control the on-off of the second pipe section. The first pipe section is used to transport the resin stored in the tank to the first mixing device; The second pipe section is used to transport the liquid conveying medium conveyed into the tank to the first mixing device; The first mixing device is used to mix the resin conveyed by the first pipe section with the liquid conveying medium conveyed by the second pipe section; The third pipe section is used to transport the mixture of the liquid conveying medium and the resin in the first mixing device to the first pipeline, so as to transport the resin stored in the resin storage tank to the storage tank for temporary storage through the first pipeline, and is used to receive the liquid conveying medium conveyed by the first pipeline and transport it to the inside of the resin storage tank through the second pipe section.

10. The nuclear power plant system according to claim 9, characterized in that, An air vent is provided on the resin storage tank.

11. A resin transfer method, applied to the resin transfer device according to any one of claims 1-6, the resin transfer method comprising: Resin loading: Preloading a liquid conveying medium in the storage tank, and pumping the liquid conveying medium in the storage tank to the resin storage tank, so as to form a positive pressure in the resin storage tank, and under the action of the positive pressure, pressing the resin in the resin storage tank to the storage tank for temporary storage; Resin unloading: Transferring the resin temporarily stored in the storage tank to the resin receiving tank.

12. The resin transfer method according to claim 11, wherein, It further includes: Before resin loading, pressing the liquid conveying medium in the storage tank to the resin storage tank to perform backwashing on the resin storage tank, and pumping the liquid conveying medium pressed into the resin storage tank back to the storage tank; and / or, After resin loading is completed, pumping the liquid conveying medium pumped into the resin storage tank in the resin loading step back to the storage tank, and further pressing the liquid conveying medium in the storage tank into the buffer tank filled with gas for temporary storage, so as to form a positive pressure in the buffer tank.

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