Nuclear power plant diesel engine carrying system and nuclear power plant diesel engine carrying method

Abstract

The invention discloses a nuclear power plant diesel engine carrying system and a nuclear power plant diesel engine carrying method, and the nuclear power plant diesel engine carrying system comprises an active carrying device which is used for being connected with a front end footstand of a nuclear power plant diesel engine; and the driven carrying device is used for being connected with a rear end footstand of the nuclear power plant diesel engine so as to transport the nuclear power plant diesel engine together with the driving carrying device. By applying the nuclear power plant diesel engine carrying system and the nuclear power plant diesel engine carrying method, the working efficiency can be effectively improved, the manpower resource cost is saved, the maintenance work safety is improved, the overhaul quality is improved, the overhaul period is shortened, and then the reliability of an emergency power supply can be guaranteed.

Description

Technical Field

[0001] This invention relates to the field of nuclear power technology, and in particular to a diesel engine handling system and method for nuclear power plants. Background Technology

[0002] Diesel engine power components wear down over time, and internal rubber parts gradually age. According to maintenance manuals, small and medium-sized diesel engines require periodic disassembly, refurbishment, and factory repair. Based on feedback from multiple users, in cases where major damage to power components has occurred and on-site repair is not feasible, replacing the entire diesel generator set is the optimal solution.

[0003] Whether considering preventative or corrective maintenance, there is a need to replace the entire diesel engine. Traditional diesel engine replacement involves moving it manually using rollers. This method lacks power and relies entirely on human effort, making it overly dependent on operator experience and difficult to control in terms of force and distance. Furthermore, manually prying and moving the diesel engine carries the risk of tipping over. Additionally, diesel engines are heavy and typically installed inside factory buildings, where space for hoisting tools is limited. Overall, traditional diesel engine handling methods suffer from drawbacks such as rough handling, high risk, poor safety, low efficiency, long processing time, and uncontrollable quality. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a diesel engine handling system and a diesel engine handling method for nuclear power plants, so as to solve the problem of difficult diesel engine handling in related technologies.

[0005] The technical solution adopted by this invention to solve its technical problem is: constructing a diesel engine handling system for nuclear power plants, comprising:

[0006] An active conveying device, which is used to connect to the front foot mount of a nuclear power plant diesel engine;

[0007] A driven transport device is used to connect to the rear end mount of the nuclear power plant diesel engine to transport the nuclear power plant diesel engine together with the active transport device.

[0008] In some embodiments, the active handling device includes a connecting beam and an electric tank transporter. The connecting beam is used to connect to the front end mount of a nuclear power plant diesel engine, and both ends of the connecting beam extend beyond the ends of the front end mount in the longitudinal direction. There are two electric tank transporters, and the two electric tank transporters are respectively connected to the two ends of the connecting beam in the longitudinal direction via connecting seats.

[0009] In some embodiments, each of the connection seats comprises a bottom plate, a top plate, a first connecting plate, a second connecting plate, a third connecting plate, a fourth connecting plate, and a fixing structure, the bottom plate and the top plate are arranged in parallel and spaced apart, the first connecting plate and the second connecting plate are arranged in parallel and opposite, and the first connecting plate and the second connecting plate are connected to the bottom plate and the top plate, the third connecting plate and the fourth connecting plate are arranged in parallel and opposite, and the third connecting plate and the fourth connecting plate are connected to the front and rear ends of the top plate, the top plate, the third connecting plate, and the fourth connecting plate define a connection groove, the connection groove is matched with the connecting beam, and the third connecting plate and the fourth connecting plate are detachably connected with the connecting beam, and the fixing structure is connected with the bottom plate, the first connecting plate, and the second connecting plate, respectively, and the fixing structure is used for detachable connection with the disc of the electric tank transporter.

[0010] In some embodiments, the fixing structure comprises a first fixing plate, a second fixing plate, a third fixing plate, and a fourth fixing plate, the first fixing plate and the second fixing plate are connected with the bottom plate and the first connecting plate, the lower parts of the first fixing plate and the second fixing plate protrude from the lower end of the bottom plate, and the first fixing plate and the second fixing plate are arranged in opposite and inclined manner.

[0011] The third fixing plate and the fourth fixing plate are connected with the bottom plate and the second connecting plate, the lower parts of the third fixing plate and the fourth fixing plate protrude from the lower end of the bottom plate, and the third fixing plate and the fourth fixing plate are arranged in opposite and inclined manner.

[0012] In some embodiments, the driven carrying device comprises a support beam and a moving trolley, the support beam is used for connecting with the rear end foot seat of the nuclear power plant diesel engine, the length of the support beam is greater than the width of the nuclear power plant diesel engine, the two ends of the length direction of the support beam protrude from the two sides of the width direction of the nuclear power plant diesel engine, and the number of the moving trolleys is two, and the two moving trolleys are connected with the two ends of the length direction of the support beam through mounting seats, respectively.

[0013] In some embodiments, the nuclear power plant diesel engine carrying system further comprises a jacking device, the jacking device is used for connecting with the nuclear power plant diesel engine to jack up the nuclear power plant diesel engine to a predetermined height.

[0014] In some embodiments, the nuclear power plant diesel engine carrying system further comprises two first connecting assemblies and two second connecting assemblies, the two first connecting assemblies are used for being installed in the accommodation grooves of the front end foot seats, and the two second connecting assemblies are used for being installed in the two rear end foot seats, respectively.

[0015] The jacking device comprises two first jacks and two second jacks, the two first jacks are connected with the first connecting assembly respectively, and the two second jacks are connected with the second connecting assembly respectively.

[0016] In some embodiments, the first connecting assembly comprises a frame and a first abutting plate, the frame comprises a first adjusting plate, a second adjusting plate, a third adjusting plate and a fourth adjusting plate, the first adjusting plate and the second adjusting plate are arranged in parallel and spaced apart, the third adjusting plate and the fourth adjusting plate are arranged in parallel and spaced apart, and the third adjusting plate and the fourth adjusting plate are connected with two sides of the first adjusting plate and the second adjusting plate respectively.

[0017] The first adjusting plate, the second adjusting plate, the third adjusting plate and the fourth adjusting plate are all provided with adjusting holes for mounting adjusting members, the first abutting plate is connected with the inner side surfaces of the third adjusting plate and the fourth adjusting plate respectively, and the first abutting plate extends out of the frame, and the first abutting plate is used for being connected with the first jack.

[0018] The second connecting assembly comprises a main body and a pressing plate, the main body has a second mounting surface matched with the first mounting surface of the rear end base, the main body located at the lower part of the second mounting surface is provided with a load-bearing part matched with the upper supporting surface of the groove of the rear end base, and the lower end of the main body further extends a first clamping plate and a second clamping plate, and the first clamping plate and the second clamping plate form a clamping groove therebetween.

[0019] The pressing plate is arranged opposite to the main body, the pressing plate is located at the inner side of the rear end base, the pressing plate is connected with the main body so as to relatively fix the second connecting assembly and the rear end base, and one side of the main body is provided with a second abutting plate used for being connected with the second jack.

[0020] In some embodiments, the nuclear power plant diesel engine carrying system further comprises a sleeper supporting device, the sleeper supporting device is arranged in the nuclear power plant diesel engine house and extends out of the nuclear power plant diesel engine house.

[0021] The application further discloses a nuclear power plant diesel engine carrying method applied to the nuclear power plant diesel engine carrying system of any one of the above-mentioned embodiments, and the method comprises the following steps.

[0022] S10: connecting the driving carrying device with the front end base of the nuclear power plant diesel engine, and connecting the driven carrying device with the rear end base of the nuclear power plant diesel engine.

[0023] S20: controlling the active carrying device to carry the nuclear power plant diesel engine out of the nuclear power plant diesel engine workshop, or controlling the active carrying device to carry the nuclear power plant diesel engine into the nuclear power plant diesel engine workshop.

[0024] The application has the following beneficial effects: the nuclear power plant diesel engine carrying system and the nuclear power plant diesel engine carrying method can effectively improve work efficiency, save labor resource cost, improve maintenance work safety, improve maintenance quality, shorten overhaul period, and thus can guarantee emergency power supply reliability. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the present application, the present application will be further described below in conjunction with the drawings and embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor. In the drawings:

[0026] Figure 1 is one of the application diagrams of the nuclear power plant diesel engine carrying system in some embodiments of the present application;

[0027] Figure 2 is the second application diagram of the nuclear power plant diesel engine carrying system in some embodiments of the present application;

[0028] Figure 3 is the third application diagram of the nuclear power plant diesel engine carrying system in some embodiments of the present application;

[0029] Figure 4 is the fourth application diagram of the nuclear power plant diesel engine carrying system in some embodiments of the present application;

[0030] Figure 5 is the fifth application diagram of the nuclear power plant diesel engine carrying system in some embodiments of the present application;

[0031] Figure 6 is the sixth application diagram of the nuclear power plant diesel engine carrying system in some embodiments of the present application;

[0032] Figure 7 is the seventh application diagram of the nuclear power plant diesel engine carrying system in some embodiments of the present application;

[0033] Figure 8 is the eighth application diagram of the nuclear power plant diesel engine carrying system in some embodiments of the present application;

[0034] Figure 9 is one of the structural diagrams of the active carrying device in some embodiments of the present application;

[0035] Figure 10 is a structural schematic diagram of the active carrying device in some embodiments of the present application;

[0036] Figure 11 is a structural schematic diagram of the active carrying device in some embodiments of the present application;

[0037] Figure 12 is a structural schematic diagram of the connecting seat in some embodiments of the present application;

[0038] Figure 13 is a structural schematic diagram of the connecting seat in some embodiments of the present application;

[0039] Figure 14 is a structural schematic diagram of the driven carrying device in some embodiments of the present application;

[0040] Figure 15 is a structural schematic diagram of the driven carrying device in some embodiments of the present application;

[0041] Figure 16 is a structural schematic diagram of the driven carrying device in some embodiments of the present application;

[0042] Figure 17 is a structural schematic diagram of the driven carrying device in some embodiments of the present application;

[0043] Figure 18 is a structural schematic diagram of the driven carrying device in some embodiments of the present application;

[0044] Figure 19 is a structural schematic diagram of the first connecting assembly in some embodiments of the present application;

[0045] Figure 20 is a structural schematic diagram of the first connecting assembly in some embodiments of the present application;

[0046] Figure 21 is a structural schematic diagram of the first connecting assembly in some embodiments of the present application;

[0047] Figure 22 is a structural schematic diagram of the second connecting assembly in some embodiments of the present application;

[0048] Figure 23 is a structural schematic diagram of the second connecting assembly in some embodiments of the present application;

[0049] Figure 24 is a structural schematic diagram of the tie support device in some embodiments of the present application;

[0050] Figure 25Figure 2 is a structural schematic diagram of a tie support device in some embodiments of the present application;

[0051] Figure 26 Figure 3 is a structural schematic diagram of a tie support device in some embodiments of the present application. DETAILED DESCRIPTION

[0052] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the technical solutions, and should not be construed as indicating that the devices or elements referred to must have a particular direction, therefore, it should not be construed as a limitation on the present application.

[0053] It should also be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there can be one or more intervening elements. The terms "first", "second", "third" and the like are only for the convenience of describing the technical solutions, and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features with "first", "second", "third" and the like can be explicitly or implicitly included one or more of the features. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] In the following description, specific details such as specific system structures, techniques, etc. are presented in order to facilitate a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits and methods are omitted to avoid unnecessary details that hinder the description of the present application.

[0055] Reference Figures 1 to 8The application shows a nuclear power plant diesel engine moving system, which comprises a driving moving device and a driven moving device, wherein the driving moving device is used for connecting with the front end pedestal 101 of the nuclear power plant diesel engine 100; the driven moving device is used for connecting with the rear end pedestal 102 of the nuclear power plant diesel engine 100 to transport the nuclear power plant diesel engine 100 together with the driving moving device. The nuclear power plant diesel engine 100 comprises but is not limited to LHZ type diesel engine.

[0056] Referring to Figures 9 to 13 In some embodiments, the driving moving device can be used for moving the nuclear power plant diesel engine 100 out of the diesel engine plant, and in some embodiments, the driving moving device can also be used for moving the new nuclear power plant diesel engine 100 or the repaired nuclear power plant diesel engine 100 into the nuclear power plant diesel engine plant 300.

[0057] The driving moving device comprises a connecting beam 10 and two electric tank moving vehicles 20, the connecting beam 10 is used for connecting with the front end pedestal 101 of the nuclear power plant diesel engine 100, and the length direction of the connecting beam 10 extends out of the two ends of the front end pedestal 101; the electric tank moving vehicles 20 are two in number, and the length direction of the two electric tank moving vehicles 20 is connected with the two ends of the connecting beam 10 through the connecting seats 21. The nuclear power plant diesel engine 100 can be but is not limited to LHZ type diesel engine.

[0058] Referring to Figures 12 to 13 Each of the connecting seats 21 comprises a bottom plate 211, a top plate 212, a first connecting plate 213, a second connecting plate 214, a third connecting plate 215, a fourth connecting plate 216 and a fixing structure 217, the bottom plate 211 and the top plate 212 are arranged in parallel and spaced apart, the first connecting plate 213 and the second connecting plate 214 are arranged in opposite parallel, and the first connecting plate 213 and the second connecting plate 214 are connected with the bottom plate 211 and the top plate 212, the third connecting plate 215 and the fourth connecting plate 216 are arranged in opposite parallel, and the third connecting plate 215 and the fourth connecting plate 216 are connected with the front and rear ends of the top plate 212, the top plate 212, the third connecting plate 215 and the fourth connecting plate 216 define a connecting groove, the connecting groove is matched with the connecting beam 10, and the third connecting plate 215 and the fourth connecting plate 216 are detachably connected with the connecting beam 10, the fixing structure 217 is connected with the bottom plate 211, the first connecting plate 213 and the second connecting plate 214, respectively, and the fixing structure 217 is used for detachably connecting with the disc 22 of the electric tank moving vehicle 20. The electric tank moving vehicle 20 can be selected from the existing electric tank moving vehicle, which can be purchased on the market according to the needs, and here is not limited.

[0059] The active carrying device is applied as follows: the connecting beam 10 is installed on the front end foot base 101, and the carrying operation of the nuclear power plant diesel engine 100 is realized through the electric tank carrying vehicle 20. The overall structure of the active carrying device is relatively simple, the manufacturing cost is low, the operation is relatively convenient, and the practicality is good.

[0060] Referring to Figure 12 and Figure 13 In some embodiments, the fixing structure 217 includes a first fixing plate 2171, a second fixing plate 2172, a third fixing plate 2173, and a fourth fixing plate 2174. The first fixing plate 2171 and the second fixing plate 2172 are connected with the bottom plate 211 and the first connecting plate 213. The lower parts of the first fixing plate 2171 and the second fixing plate 2172 protrude from the lower end of the bottom plate 211. The first fixing plate 2171 and the second fixing plate 2172 are oppositely inclined.

[0061] The third fixing plate 2173 and the fourth fixing plate 2174 are connected with the bottom plate 211 and the second connecting plate 214. The lower parts of the third fixing plate 2173 and the fourth fixing plate 2174 protrude from the lower end of the bottom plate 211. The third fixing plate 2173 and the fourth fixing plate 2174 are oppositely inclined. The first fixing plate 2171, the second fixing plate 2172, the third fixing plate 2173, and the fourth fixing plate 2174 are approximately on a virtual circle, so that they can be connected with the disc 22 of the electric tank carrying vehicle 20. Preferably, the first fixing plate 2171, the second fixing plate 2172, the third fixing plate 2173, and the fourth fixing plate 2174 can be connected with the disc 22 through fixing members, which include but are not limited to fastening screws or fastening bolts. The fastening bolts of optional specifications M10X25 can be used.

[0062] Referring to Figure 12 and Figure 13 In some embodiments, the connecting seat 21 further includes a reinforcing plate 218 connected with the bottom plate 211 and the top plate 212. The reinforcing plate 218 is connected with the opposite inner side surfaces of the first connecting plate 213 and the second connecting plate 214. One or more reinforcing plates 218 can be arranged. Arranging the reinforcing plate 218 can improve the structural rigidity of the entire connecting seat 21.

[0063] Referring to Figure 12 and Figure 13As shown, in some embodiments, the third connecting plate 215 is provided with a plurality of first connecting holes 2151, the fourth connecting plate 216 is provided with a plurality of second connecting holes 2161, the connecting seat 21 further comprises a plurality of first fasteners and a plurality of second fasteners, the plurality of first fasteners are used to connect the first connecting holes 2151 and the connecting beam 10, and the plurality of second fasteners are used to connect the second connecting holes 2161 and the connecting beam 10. The first fasteners and the second fasteners include but are not limited to fastening bolts or fastening screws, and the fastening bolts of optional specifications M12X25.

[0064] Referring to Figures 9 to 13 In some embodiments, the middle part of the connecting beam 10 is provided with a first limiting plate 14 and a second limiting plate 15, and the upper surface of the connecting beam 10, the first limiting plate 14 and the second limiting plate 15 jointly define a limiting groove, which is matched with the front end foot seat 101, and the front end foot seat 101 can be placed in the limiting groove.

[0065] Referring to Figures 9 to 13 In some embodiments, the first limiting plate 14 is provided with a plurality of first limiting holes 141, and the plurality of first limiting holes 141 are arranged at intervals along the length direction of the first limiting plate 14. The second limiting plate 15 is provided with a plurality of second limiting holes 151, and the plurality of second limiting holes 151 are arranged at intervals along the length direction of the second limiting plate 15. The active carrying device further comprises a plurality of third fasteners and a plurality of fourth fasteners, the plurality of third fasteners connect the first limiting holes 141 and the front end foot seat 101, and the plurality of fourth fasteners connect the second limiting holes 151 and the front end foot seat 101. The first fasteners and the second fasteners include but are not limited to fastening bolts or fastening screws.

[0066] Referring to Figures 9 to 13 In some embodiments, the connecting beam 10 comprises an upper plate body 11, a lower plate body 12 and a support plate 13, the upper plate body 11 and the lower plate body 12 are both rectangular structures, the upper plate body 11 and the lower plate body 12 are arranged in parallel and at intervals, the support plate 13 is a rectangular structure, the support plate 13 is connected to the middle part of the upper plate body 11 and the lower plate body 12 vertically, and the length directions of the support plate 13, the upper plate body 11 and the lower plate body 12 are consistent. The first limiting plate 14 and the second limiting plate 15 are arranged on the upper plate body 11.

[0067] Referring to Figures 9 to 13In some embodiments, the connecting beam 10 further comprises a plurality of first reinforcing plates 16 and a plurality of second reinforcing plates 17, the plurality of first reinforcing plates 16 connecting the front ends of the upper plate body 11 and the lower plate body 12, and the plurality of second reinforcing plates 17 connecting the rear ends of the upper plate body 11 and the lower plate body 12. The first reinforcing plates 16 and the second reinforcing plates 17 can improve the overall structural rigidity of the connecting beam 10. Of course, in some embodiments, the connecting beam 10 can be a round steel beam.

[0068] In some embodiments, the connecting beam 10 is a one-piece structure. In some embodiments, the connecting seat 21 is a one-piece structure. The connecting beam 10 and the connecting seat 21 can be made of metal materials, including but not limited to stainless steel, as long as they meet the requirements of connection and support operations, which are not limited here.

[0069] In some embodiments, the size of the electric tank trolley 20 can be 600 mm in length, 680 mm in width, and 166 mm in height. The electric tank trolley 20 can be selected from existing electric tank trolleys, which are not limited here.

[0070] Referring to Figures 14 to 18 In some embodiments, the present application shows a driven carrying device that can cooperate with the electric tank trolley 20 to carry the nuclear power plant diesel engine 100. The electric tank trolley 20 can be connected to the front end foot seat 101 of the nuclear power plant diesel engine 100 through the connecting beam 10.

[0071] Referring to Figures 14 to 18 The driven carrying device comprises a support beam 30 and a moving trolley 40. The support beam 30 is used to connect the rear end foot seat 102 of the nuclear power plant diesel engine 100. The length of the support beam 30 is greater than the width of the nuclear power plant diesel engine 100. The length direction of the support beam 30 protrudes from both sides of the width direction of the nuclear power plant diesel engine 100. The number of moving trolleys 40 is two. Two moving trolleys 40 are connected to the length direction of the support beam 30 through mounting seats 41.

[0072] Referring to Figures 14 to 18The mounting base 41 comprises a mounting plate 411, a bearing plate 412, a first side plate 413 and a second side plate 414, the first side plate 413 and the second side plate 414 are parallel and spaced apart and both are connected perpendicularly to the mounting plate 411, the bearing plate 412 is parallel and spaced apart to the mounting plate 411, the bearing plate 412 is above the mounting plate 411 and is connected perpendicularly to the middle part of the first side plate 413 and the second side plate 414, the upper surface of the bearing plate 412, the first side plate 413 and the second side plate 414 define a bearing groove, the end of the length direction of the support beam 30 is mounted in the bearing groove, and the first side plate 413 and the second side plate 414 are connected with the support beam 30, and the mounting plate 411 is connected with the connecting body 42 of the moving trolley 40.

[0073] The driven carrying device is applied as follows: when the nuclear power plant diesel engine 100 needs to be carried, the connecting beam 10 is fixed relative to the front end foot support 101 of the nuclear power plant diesel engine 100, and then the moving trolley 40 assists in transporting the nuclear power plant diesel engine 100 under the traction of the electric tank trolley 20, so that only one electric tank trolley 20 is needed through the driven carrying device, so that the transportation operation of the nuclear power plant diesel engine 100 is more convenient, and the operation accuracy can be improved. In addition, the driven carrying device has a relatively simple structure, low manufacturing cost, low use cost, good economy, and convenient installation, which can improve the operation efficiency.

[0074] Referring to Figures 14 to 18 In some embodiments, the mounting base 41 further comprises a reinforcing rib plate 415 connected to the upper surface of the mounting plate 411 and the lower surface of the bearing plate 412. The reinforcing rib plate 415 can improve the overall structural strength of the mounting base 41.

[0075] Referring to Figures 14 to 18 In some embodiments, the mounting plate 411 is threadedly connected and fixed with the connecting body 42 of the moving trolley 40. The first side plate 413 and the second side plate 414 are parallel and spaced apart and both are connected perpendicularly to the middle part of the mounting plate 411, and the part of the mounting plate 411 protruding from the first side plate 413 and the second side plate 414 is threadedly connected and fixed with the connecting body 42 by fastening bolts or fastening screws.

[0076] Referring to Figures 14 to 18 In some embodiments, each moving trolley 40 comprises a frame 43, and three moving groups are arranged in the frame 43, each moving group comprising at least three moving wheels 44. Each moving group can be connected with all the moving wheels 44 by an installation shaft.

[0077] Referring to Figures 14 to 18Further, the frame 43 is provided with a plurality of partitions 431 arranged in longitudinal and transverse directions, and the plurality of partitions 431 define a plurality of isolation chambers, and each of the isolation chambers is provided with a moving wheel 44.

[0078] Referring to Figures 14 to 18 In some embodiments, the support beam 30 comprises a first plate body 31, a second plate body 32 and a third plate body 33, the first plate body 31, the second plate body 32 and the third plate body 33 are all rectangular structures and have the same length direction, the first plate body 31 and the second plate body 32 are arranged in parallel and spaced apart, the upper end of the third plate body 33 is connected to the middle part of the lower surface of the first plate body 31 perpendicularly, and the lower end of the third plate body 33 is connected to the middle part of the lower surface of the second plate body 32 perpendicularly.

[0079] Referring to Figures 1 to 8 In some embodiments, the support beam 30 further comprises a plurality of first positioning plates 34 connected to the front ends of the first plate body 31 and the second plate body 32, and the support beam 30 further comprises a plurality of second positioning plates 35 connected to the rear ends of the first plate body 31 and the second plate body 32. The first side plate 413 can be connected to the first plate body 31, and the second side plate 414 can be connected to the second plate body 32, and the connection mode can be connected by fastening bolts or fastening screws, which is not limited here.

[0080] In some embodiments, the support beam 30 is detachably connected to the rear end foot base 102 of the nuclear power plant diesel engine 100 by a threaded member, and the bottom of the rear end foot base 102 can be threadedly connected and fixed to the first plate body 31. The threaded member includes but is not limited to fastening bolts or fastening screws.

[0081] In some embodiments, the support beam 30 is an integral structure, and the support beam 30 can be made of metal materials, such as stainless steel. Of course, the support beam 30 can also be made of other materials as long as the support strength is met, which is not limited here.

[0082] Referring to Figures 1 to 8In some embodiments, the nuclear power plant diesel engine moving system further comprises a jacking device 50, which is used to connect with the nuclear power plant diesel engine 100 to jack up the nuclear power plant diesel engine 100 to a predetermined height. In the present embodiment, the nuclear power plant diesel engine 100 can be jacked up by about 75 mm by the jacking device 50. Specifically, four people can synchronously operate four jacks at four positions to jack up the nuclear power plant diesel engine 100 by about 10-20 mm; if there are less than four people, two people can synchronously operate two jacks at opposite angles to jack up the nuclear power plant diesel engine 100 by 10-20 mm, and then another group of two people can synchronously operate the other two jacks at opposite angles to jack up the nuclear power plant diesel engine 100 to the position where the jacks contact the first connecting assembly 60 and the second connecting assembly 70; at this time, the shock absorbers have been removed from the foot base, and the four shock absorbers can be removed by using a wrench. Then the four jacks are continuously operated, and when the nuclear power plant diesel engine 100 is jacked up by about 50-60 mm, the distance from the bottom surface of the foot base to the top surface of the approximately 300 mm high channel steel of the foot base is measured by using a steel ruler or a tape measure; if the distance is greater than 75 mm, the nuclear power plant diesel engine 100 does not need to be jacked up any more; if the distance is less than 75 mm, the nuclear power plant diesel engine 100 is continuously jacked up until the distance is 75 mm, and the heights of the four foot bases should be adjusted to be the same. After that, the driving moving device and the driven moving device are installed.

[0083] Referring to Figures 19 to 21 In some embodiments, the nuclear power plant diesel engine moving system further comprises two first connecting assemblies 60 and two second connecting assemblies 70, the two first connecting assemblies 60 are used to be installed in the accommodating grooves of the front end foot bases 101, and the two second connecting assemblies 70 are used to be installed in the two rear end foot bases 102, respectively.

[0084] The jacking device 50 comprises two first jacks 51 and two second jacks 52, the two first jacks 51 are connected with the first connecting assemblies 60, respectively, and the two second jacks 52 are connected with the second connecting assemblies 70, respectively.

[0085] Referring to Figures 19 to 21 In some embodiments, the first connecting assembly 60 comprises a frame body 61 and a first abutting plate 62, the frame body 61 is generally a square frame body, and the frame body 61 can comprise a first adjusting plate 611, a second adjusting plate 612, a third adjusting plate 613 and a fourth adjusting plate 614, the first adjusting plate 611 and the second adjusting plate 612 are arranged in parallel and at intervals, the third adjusting plate 613 and the fourth adjusting plate 614 are arranged in parallel and at intervals, and the third adjusting plate 613 and the fourth adjusting plate 614 are connected with two sides of the first adjusting plate 611 and the second adjusting plate 612, respectively.

[0086] Referring to Figure 8The first adjusting plate 611, the second adjusting plate 612, the third adjusting plate 613 and the fourth adjusting plate 614 are provided with adjusting holes for mounting adjusting members. The first abutting plate 62 is connected to the inner side of the third adjusting plate 613 and the fourth adjusting plate 614, and extends out of the frame 61. The first abutting plate 62 is used to be connected to the first jack 51. The adjusting member can be, but is not limited to, an adjusting screw. By adjusting the adjusting member, the first connecting assembly 60 can be fixed in the accommodating groove of the front end foot support 101.

[0087] In some embodiments, the first adjusting plate 611 can protrude from the third adjusting plate 613 and the fourth adjusting plate 614. The first connecting assembly 60 can further include a first fixed reinforcing plate 63 connected to the first adjusting plate 611 and the first abutting plate 62. The first connecting assembly 60 can further include a second fixed reinforcing plate 64 connected to the first fixed reinforcing plate 63 and the first abutting plate 62. The overall structural strength of the first connecting assembly 60 can be effectively improved.

[0088] Referring to Figure 22 , Figure 23 and Figures 24 to 26 , the second connecting assembly 70 includes a main body 71 and a pressing plate 72. The main body 71 has a second mounting surface 711 matched with the first mounting surface 1021 of the rear end foot support 102. The main body 71 is provided with a load-bearing portion 712 matched with the upper supporting surface 1023 of the groove 1022 of the rear end foot support 102 at the lower part of the second mounting surface 711. The lower end of the main body 71 further extends a first clamping plate 73 and a second clamping plate 74. The first clamping plate 73 and the second clamping plate 74 form a clamping groove therebetween, which can be matched with the supporting beam 30 to improve the connection stability of the driven carrying device.

[0089] The pressing plate 72 is arranged opposite to the main body 71. The pressing plate 72 is located at the inner side of the rear end foot support 102. The pressing plate 72 is connected to the main body 71 to fix the second connecting assembly 70 relative to the rear end foot support 102. One side of the main body 71 is provided with a second abutting plate 75 used to be connected to the second jack 52.

[0090] Referring to Figures 24 to 26 , in some embodiments, the nuclear power plant diesel engine carrying system further includes a sleeper support device 80 arranged in the nuclear power plant diesel engine plant 300 and extending out of the nuclear power plant diesel engine plant 300.

[0091] Referring to Figures 24 to 26The sleeper supporting device 80 comprises a first sleeper assembly 81, a second sleeper assembly 82, a third sleeper assembly 83, a fourth sleeper assembly 84, a fifth sleeper assembly 85 and a sixth sleeper assembly 86 arranged from top to bottom.

[0092] Referring to Figures 24 to 26 The first sleeper assembly 81 and the second sleeper assembly 82 extend out of the nuclear power plant diesel engine house 300 from the nuclear power plant diesel engine house 300, and the parts of the first sleeper assembly 81 and the second sleeper assembly 82 located in the nuclear power plant diesel engine house 300 can be laid on the cement platform of the nuclear power plant diesel engine 100. The third sleeper assembly 83, the fourth sleeper assembly 84, the fifth sleeper assembly 85 and the sixth sleeper assembly 86 are arranged outside the nuclear power plant diesel engine house 300 and close to the entrance 301 of the nuclear power plant diesel engine house 300. In the embodiment, the nuclear power plant diesel engine 100 is not carried from the main door 302 of the nuclear power plant diesel engine house 300, but is carried by punching a hole in the wall behind the nuclear power plant diesel engine 100 (the end of the fan), and the wall is punched in the position opposite to the nuclear power plant diesel engine 100 with a size of 3000mm*2300mm, so that the overall replacement and carrying of the new and old nuclear power plant diesel engines 100 are more convenient.

[0093] Before laying the sleepers, the fan and the corresponding pipeline lines on the wall side are removed, and the battery rack on the cement platform on both sides of the base of the nuclear power plant diesel engine 100 is cleaned, so as to facilitate the normal laying of the sleepers and the carrying work.

[0094] Referring to Figures 24 to 26 The first sleeper assembly 81 comprises ten first sleepers 811 extending along a first direction, and the ten first sleepers 811 are arranged side by side along a second direction; the second sleeper assembly 82 comprises seventeen second sleepers 821 extending along the second direction, and the seventeen second sleepers 821 are arranged side by side along the first direction, and four second sleepers 821 are located in the nuclear power plant diesel engine house 300, and thirteen second sleepers 821 are located outside the nuclear power plant diesel engine house 300; the third sleeper assembly 83 comprises ten third sleepers 831 extending along the first direction, and the ten third sleepers 831 are arranged side by side along the second direction.

[0095] Referring to Figures 24 to 26 The fourth sleeper assembly 84 comprises thirteen fourth sleepers 841 extending along the second direction, and the thirteen fourth sleepers 841 are arranged side by side along the first direction.

[0096] Referring to Figures 24 to 26 The fifth sleeper assembly 85 comprises ten fifth sleepers 851 extending along the first direction, and the ten fifth sleepers 851 are arranged side by side along the second direction.

[0097] Referring to Figures 24 to 26The sixth sleeper assembly 86 includes thirteen sixth sleepers 861 extending along the second direction, and the thirteen fourth sleepers 841 are arranged side by side along the first direction.

[0098] The first direction herein can be the moving direction of the nuclear power plant diesel engine 100 during transportation, and the second direction can be arranged perpendicularly to the first direction. Alternatively, the first direction is the length direction of the sleeper support device 80 as a whole, and the second direction is the width direction of the sleeper support device 80 as a whole. Alternatively, the first direction is the transverse direction, and the second direction is the longitudinal direction.

[0099] The sleeper support device 80 is applied as follows: when it is necessary to transport the nuclear power plant diesel engine 100 out of the nuclear power plant diesel engine plant 300, a moving device (such as an electric tank transport trolley) can be installed on the nuclear power plant diesel engine 100, and the moving device can be supported by arranging the sleeper support device 80. After the nuclear power plant diesel engine 100 is transported out of the nuclear power plant diesel engine plant 300, the moving device can be removed, and the nuclear power plant diesel engine 100 can be hoisted to a maintenance area or a placement area. The nuclear power plant diesel engine 100 includes but is not limited to an LHY diesel engine.

[0100] In the embodiment, the sleeper support device 80 can be arranged to support the moving device to achieve the transportation of the nuclear power plant diesel engine 100. In addition, the sleeper support device 80 has a relatively simple structure, is convenient to manufacture, has a relatively low manufacturing cost, has relatively high economic practicality, and is relatively convenient to use and install, thereby improving work efficiency.

[0101] Referring to Figures 24 to 26 In some embodiments, all the first sleepers 811 have the same size and material, and all the first sleepers 811 are closely arranged. Further, each of the first sleepers 811 has a length, a width, and a height of 5100 mm, 300 mm, and 100 mm, respectively.

[0102] Referring to Figures 24 to 26 In some embodiments, all the second sleepers 821 have the same size and material, and all the second sleepers 821 are closely arranged. Further, each of the second sleepers 821 has a length, a width, and a height of 3000 mm, 300 mm, and 100 mm, respectively.

[0103] Referring to Figures 24 to 26 In some embodiments, all the third sleepers 831 have the same size and material, and all the third sleepers 831 are closely arranged. Further, each of the third sleepers 831 has a length, a width, and a height of 3900 mm, 300 mm, and 100 mm, respectively.

[0104] Referring to Figures 24 to 26In some embodiments, all the fourth sleepers 841 have the same dimensions and materials, and all the fourth sleepers 841 are arranged closely together. Furthermore, the length, width and height of each fourth sleeper 841 are 3000mm x 300mm x 100mm.

[0105] See Figures 24 to 26 In some embodiments, all the fifth sleepers 851 have the same dimensions and materials, and all the fifth sleepers 851 are arranged closely together. Furthermore, the length, width and height of each fifth sleeper 851 are 3900mm x 300mm x 100mm.

[0106] See Figures 24 to 25 In some embodiments, all the sixth sleepers 861 have the same dimensions and materials, and all the sixth sleepers 861 are arranged closely together. Furthermore, the length, width and height of each sixth sleeper 861 are 3000mm x 300mm x 100mm.

[0107] Understandably, the top layer consists of 10 square timbers (length x width x height = 5100mm x 300mm x 100mm) laid longitudinally and connected in a row with M24 x 3110 bolts; the second layer (from top to bottom) consists of 17 square timbers (length x width x height = 3000mm x 300mm x 100mm) laid horizontally; the third and fifth layers consist of 10 square timbers (length x width x height = 3900mm x 300mm x 100mm) laid longitudinally; the fourth and sixth layers have the same dimensions as the second layer, with 13 timbers in total; the four corners are secured with sharpened M30 x 1000 bolts driven into the ground, and the sides and outer ends are then connected with nails using two 513mm x 10mm x 3900mm and 513mm x 10mm x 3020mm composite boards. Figures 24 to 26 As shown. During actual construction, the dimensions of a single square timber should be adjusted according to the specific dimensions of the sleepers on site, as long as the overall appearance dimensions are maintained.

[0108] Additionally, the following sizes of square timber and wooden blocks can be added as needed: 1) The cement platform needs to be widened and heightened on both sides, requiring 6 square timbers with a length x width x height = 5100 x 300 x 100 mm; 2) Under the second jack 52 in the middle position, 2 square timbers with a length x width x height = 1100 mm x 300 mm x 100 mm and 4 wooden blocks with a length x width x height = 300 mm x 300 mm x 100 mm can be used to raise it to be flush with the top surface of the footrest (channel steel structure) of the nuclear power plant diesel engine 100.

[0109] In this embodiment, the nuclear power plant diesel engine handling system has the following technical advantages:

[0110] (1) Suitable for narrow space operation. The space on both sides of the nuclear power plant diesel engine 100 is narrow, and it is difficult for general load-bearing equipment to enter. The exhaust pipe, fire-fighting device, silencer and many other equipment are arranged above the nuclear power plant diesel engine 100, and there is no place for the lifting device to operate. The lifting device 50 can be used to lift the nuclear power plant diesel engine 100 in front or on both sides, which can be achieved in a very small space.

[0111] (2) Applicable to complex environments: The floor of the nuclear power plant diesel engine 100 workshop is mostly covered with grating and other structures, which have poor load-bearing capacity; the space of the nuclear power plant diesel engine 100 workshop is small, and there are many devices around the nuclear power plant diesel engine 100, which are easy to accidentally bump into; the nuclear power plant diesel engine 100 can be directly transported by the electric tank transport vehicle 20 of the active transport device and the mobile trolley 40 of the passive transport device without occupying extra space.

[0112] (3) Ensure equipment safety: The nuclear power plant diesel engine 100 has a complex structure and a high degree of integration. It has many delicate components arranged around it, and the risk of accidental contact and injury is high. The active handling device and the passive handling device can be transported as a whole along with the feet of the nuclear power plant diesel engine 100, which can avoid the impact of traditional methods such as hoists, forklifts, and personnel on the equipment.

[0113] (4) High mobility: The electric tank transporter 20 with active transport device can be adjusted arbitrarily in front, behind, left and right, and can change direction 360° to flexibly avoid obstacles on the road.

[0114] (5) Ensuring personnel safety: The electric tank transporter 20 can be remotely driven or the electric tank transporter 20 can be automatically adjusted to maximize personnel safety.

[0115] (6) Save manpower and time: The electric tank transporter 20 is electrically driven and can turn at will. Compared with the traditional method of manual pushing, it greatly improves efficiency and saves manpower and time to a great extent.

[0116] (7) Good stability: The electric tank transporter 20 and the mobile trolley 40 are connected to the nuclear power plant diesel engine 100 through the connecting beam 10 and the support beam 30. The connecting beam 10 and the support beam 30 have large load-bearing capacity, simple structure, easy production and processing, and convenient installation. Multiple mobile wheels 44 are symmetrically distributed or distributed around the perimeter, making them safe and stable.

[0117] Applying a diesel engine handling system for nuclear power plants can effectively improve work efficiency, save human resource costs, enhance the safety of maintenance work, improve maintenance quality, shorten overhaul period, and thus ensure the reliability of emergency power supply.

[0118] In some embodiments, the present invention also discloses a method for handling diesel engines in nuclear power plants, which is applied to the nuclear power plant diesel engine handling system of any of the above embodiments, and includes the following steps:

[0119] S10: Connect the active conveying device to the front foot 101 of the nuclear power plant diesel engine 100; connect the driven conveying device to the rear foot 102 of the nuclear power plant diesel engine 100;

[0120] S20: Control the active transport device to transport the nuclear power plant diesel engine 100 out of the nuclear power plant diesel engine building 300, or control the active transport device to transport the nuclear power plant diesel engine 100 into the nuclear power plant diesel engine building 300. Specifically, check whether the active and driven transport devices are properly oriented, and draw the travel route and range of the electric tank transport vehicle 20 of the active transport device, i.e., the outermost edge of the left and right electric tank transport vehicles 20 should not exceed the line drawn 15 mm from the outermost edge of the sleeper support device 80. Operate the remote control of the electric tank transport vehicle 20 to slowly move the nuclear power plant diesel engine 100 out of the nuclear power plant diesel engine building 300.

[0121] In some embodiments, prior to step S10, the method further includes:

[0122] S01: Lift the jacking device 50 and the nuclear power plant diesel engine 100 to the predetermined position. The jacking device 50 may include two first jacks 51 and two second jacks 52. The jacking device 50 lifts the nuclear power plant diesel engine 100 by about 75 mm. Specifically, four people can operate four jacks simultaneously in four positions to lift the nuclear power plant diesel engine 100 by about 10-20 mm; if there are not enough four people, two people can operate two jacks diagonally simultaneously to lift it by 10-20 mm, and then switch to another set of two jacks diagonally to lift the jacks until they contact the first connecting assembly 60 and the second connecting assembly 70; at this time, the shock absorbers have been removed from the base and can be removed with a wrench. Then continue operating the four jacks. When the nuclear power plant diesel engine 100 is estimated to be lifted by 50-60 mm, use a steel ruler or tape measure to measure the distance from the bottom of the jack to the top of the 300 mm high channel steel of the jack. If it is greater than 75 mm, do not lift the nuclear power plant diesel engine 100 any further. If it is not enough, continue lifting the nuclear power plant diesel engine 100 to 75 mm. The height of the four jacks should be adjusted to be the same. After that, install the active and passive conveying devices. After installing the active and passive conveying devices, first check that all screws, bolts, nuts and other fasteners are tightened properly. Then slowly try to unload the lifting device 50. After completely unloading the lifting device 50, remove the lifting device 50. In some embodiments, before the lifting device 50 lifts the nuclear power plant diesel engine 100, the coupling protective cover, coupling connecting bolts or intermediate ring between the nuclear power plant diesel engine 100 and the generator 200 are removed to separate the nuclear power plant diesel engine 100 from the generator 200; then the connecting bolts of the four shock absorbers under the feet (or bases) of the nuclear power plant diesel engine 100 are loosened but not removed, and then the anchor bolts under each shock absorber are removed.

[0123] In some embodiments, prior to step S10, the method further includes:

[0124] S02: Install the sleeper support device 80, which includes a first sleeper assembly 81, a second sleeper assembly 82, a third sleeper assembly 83, a fourth sleeper assembly 84, a fifth sleeper assembly 85 and a sixth sleeper assembly 86 arranged from top to bottom.

[0125] See ​ The first sleeper assembly 81 and the second sleeper assembly 82 extend out of the nuclear power plant diesel engine room 300. The portions of the first sleeper assembly 81 and the second sleeper assembly 82 located inside the nuclear power plant diesel engine room 300 can be laid on the concrete platform of the nuclear power plant diesel engine 100. The third sleeper assembly 83, the fourth sleeper assembly 84, the fifth sleeper assembly 85, and the sixth sleeper assembly 86 are all located outside the nuclear power plant diesel engine room 300 and near the entrance 301 of the nuclear power plant diesel engine room 300. By setting up the sleeper support device 80, the active and passive transport devices can be supported. Steps S01 and S02 can be performed simultaneously; no specific limitations are made here.

[0126] The method for handling the nuclear power plant diesel engine also includes step S30 after step S20: Attach lifting straps to the original lifting position of the nuclear power plant diesel engine 100, and lift the nuclear power plant diesel engine 100 approximately 60 mm above the sleeper support device using a crane. Then, disassemble all active and passive handling devices. Afterwards, the nuclear power plant diesel engine 100 can be hoisted or moved to a maintenance area or storage area, such as a warehouse, using other mobile devices. At this point, the handling of the old nuclear power plant diesel engine 100 is complete. Of course, in some embodiments, the slings support the area below the first connecting assembly 60 and the inner side of the rear foot 102. The crane lifts the entire nuclear power plant diesel engine 100 and the handling equipment together about 50-100 mm above the sleeper support device 80. Then, the active and passive handling devices are unloaded from the nuclear power plant diesel engine 100, and the nuclear power plant diesel engine 100 is placed on the placement platform. The first connecting assembly 60 and the second connecting assembly 70 are then removed. At this point, the handling of the nuclear power plant diesel engine 100 is completed. The handling and installation of the new nuclear power plant diesel engine 100 is the reverse process of dismantling the old nuclear power plant diesel engine 100; the detailed steps will not be repeated.

[0127] Applying the method of transporting diesel engines in nuclear power plants can effectively improve work efficiency, save human resource costs, improve the safety of maintenance work, enhance the quality of maintenance, shorten the overhaul period, and thus ensure the reliability of emergency power supply.

[0128] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A diesel engine handling system for nuclear power plants, characterized in that, include: An active transport device for connecting to the front foot (101) of a nuclear power plant diesel engine (100); A driven transport device is used to connect to the rear end mount (102) of the nuclear power plant diesel engine (100) to transport the nuclear power plant diesel engine (100) together with the active transport device.

2. The nuclear power plant diesel engine handling system according to claim 1, characterized in that, The active handling device includes a connecting beam (10) and an electric tank transporter (20). The connecting beam (10) is used to connect to the front end foot (101) of the nuclear power plant diesel engine (100), and the two ends of the connecting beam (10) extend beyond the two ends of the front end foot (101) in the length direction. There are two electric tank transporters (20), and the two electric tank transporters (20) are respectively connected to the two ends of the connecting beam (10) in the length direction through connecting seats (21).

3. The nuclear power plant diesel engine handling system according to claim 2, characterized in that, Each of the connecting seats (21) includes a base plate (211), a top plate (212), a first connecting plate (213), a second connecting plate (214), a third connecting plate (215), a fourth connecting plate (216), and a fixing structure (217). The base plate (211) and the top plate (212) are arranged parallel to each other. The first connecting plate (213) and the second connecting plate (214) are arranged relatively parallel to each other, and the first connecting plate (213) and the second connecting plate (214) are both connected to the base plate (211) and the top plate (212). The third connecting plate (215) and the fourth connecting plate (216) are arranged relatively parallel to each other, and the third connecting plate (215) is arranged relatively parallel to each other. 215) and the fourth connecting plate (216) are respectively connected to the front and rear ends of the top plate (212). The top plate (212), the third connecting plate (215) and the fourth connecting plate (216) define a connecting groove. The connecting groove cooperates with the connecting beam (10). The third connecting plate (215) and the fourth connecting plate (216) are detachably connected to the connecting beam (10). The fixing structure (217) is respectively connected to the bottom plate (211), the first connecting plate (213) and the second connecting plate (214). The fixing structure (217) is used to detachably connect to the disc (22) of the electric tank transporter (20).

4. The nuclear power plant diesel engine handling system according to claim 3, characterized in that, The fixing structure (217) includes a first fixing plate (2171), a second fixing plate (2172), a third fixing plate (2173) and a fourth fixing plate (2174). The first fixing plate (2171) and the second fixing plate (2172) are connected to the base plate (211) and the first connecting plate (213). The lower parts of the first fixing plate (2171) and the second fixing plate (2172) protrude from the lower end of the base plate (211). The first fixing plate (2171) and the second fixing plate (2172) are inclined relative to each other. The third fixing plate (2173) and the fourth fixing plate (2174) are connected to the base plate (211) and the second connecting plate (214). The lower parts of the third fixing plate (2173) and the fourth fixing plate (2174) protrude from the lower end of the base plate (211). The third fixing plate (2173) and the fourth fixing plate (2174) are inclined relative to each other.

5. The nuclear power plant diesel engine handling system according to claim 1, characterized in that, The driven transport device includes a support beam (30) and a moving trolley (40). The support beam (30) is used to connect to the rear end foot (102) of the nuclear power plant diesel engine (100). The length of the support beam (30) is greater than the width of the nuclear power plant diesel engine (100). The two ends of the support beam (30) in the length direction protrude from both sides of the width direction of the nuclear power plant diesel engine (100). There are two moving trolleys (40). The two moving trolleys (40) are respectively connected to the two ends of the support beam (30) in the length direction through mounting bases (41).

6. The nuclear power plant diesel engine handling system according to claim 1, characterized in that, The nuclear power plant diesel engine handling system also includes a lifting device (50) for connecting to the nuclear power plant diesel engine (100) to lift the nuclear power plant diesel engine (100) to a predetermined height.

7. The nuclear power plant diesel engine handling system according to claim 6, characterized in that, The nuclear power plant diesel engine handling system also includes two first connecting assemblies (60) and two second connecting assemblies (70). The two first connecting assemblies (60) are used to be installed in the receiving groove of the front foot (101); the two second connecting assemblies (70) are used to be installed in the two rear foot (102) respectively. The lifting device (50) includes two first jacks (51) and two second jacks (52). The two first jacks (51) are respectively connected to the first connecting component (60), and the two second jacks (52) are respectively connected to the second connecting component (70).

8. The nuclear power plant diesel engine handling system according to claim 7, characterized in that, The first connecting component (60) includes a frame (61) and a first abutting plate (62). The frame (61) includes a first adjusting plate (611), a second adjusting plate (612), a third adjusting plate (613), and a fourth adjusting plate (614). The first adjusting plate (611) and the second adjusting plate (612) are arranged parallel to each other and spaced apart. The third adjusting plate (613) and the fourth adjusting plate (614) are arranged parallel to each other and spaced apart. The third adjusting plate (613) and the fourth adjusting plate (614) are respectively connected to the two sides of the first adjusting plate (611) and the second adjusting plate (612). The first adjusting plate (611), the second adjusting plate (612), the third adjusting plate (613) and the fourth adjusting plate (614) are all provided with adjusting holes for installing adjusting components. The first abutting plate (62) is connected to the inner side of the third adjusting plate (613) and the fourth adjusting plate (614) respectively, and the first abutting plate (62) extends out of the frame (61). The first abutting plate (62) is used to connect with the first jack (51). The second connecting assembly (70) includes a main body (71) and a pressure plate (72). The main body (71) has a second mounting surface (711) that mates with the first mounting surface (1021) of the rear foot (102). The portion of the main body (71) located below the second mounting surface (711) is provided with a load-bearing portion (712) that mates with the upper support surface (1023) of the groove (1022) of the rear foot (102). The lower end of the main body (71) also extends a first clamping plate (73) and a second clamping plate (74), and a clamping groove is formed between the first clamping plate (73) and the second clamping plate (74). The pressure plate (72) is disposed opposite to the main body (71). The pressure plate (72) is located inside the rear foot (102). The pressure plate (72) is connected to the main body (71) so that the second connecting assembly (70) is fixed relative to the rear foot (102). A second abutment plate (75) is provided on one side of the main body (71). The second abutment plate (75) is used to connect with the second jack (52).

9. The nuclear power plant diesel engine handling system according to claim 1, characterized in that, The nuclear power plant diesel engine handling system also includes a sleeper support device (80), which is located inside the nuclear power plant diesel engine building and extends out of the nuclear power plant diesel engine building.

10. A method for handling diesel engines in a nuclear power plant, applied to the nuclear power plant diesel engine handling system according to any one of claims 1 to 9, characterized in that, Includes the following steps: S10: Connect the active conveying device to the front foot (101) of the nuclear power plant diesel engine (100); connect the driven conveying device to the rear foot (102) of the nuclear power plant diesel engine (100); S20: Control the active transport device to transport the nuclear power plant diesel engine (100) out of the nuclear power plant diesel engine building, or control the active transport device to transport the nuclear power plant diesel engine (100) into the nuclear power plant diesel engine building.

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