Drum-shaped rotary filter screen dredging robot for nuclear power plant

Abstract

The utility model discloses a drum-shaped rotary filter screen desilting robot for a nuclear power plant. The drum-shaped rotary filter screen desilting robot comprises a frame, a walking device and a desilting device, the walking device is connected with the frame, the desilting device is installed on the frame and comprises a reaming mechanism, a suction pump, a submersible pump and a collecting bag, and the reaming mechanism comprises a shell, an auger, a center shaft and a driving motor; the shell is of a semi-surrounding structure, the center shaft is installed on the shell, and the auger is installed on the center shaft and extends in the axial direction of the center shaft. At least one end of the central shaft is connected with an output shaft of the driving motor; a suction inlet is formed in the shell, the suction pump is connected with the suction inlet, the collecting bag is connected with the suction pump, and the submersible pump is connected with the collecting bag so as to convey a sludge mixture in the collecting bag to the land. The drum-shaped rotary filter screen dredging robot for the nuclear power plant can replace workers to conduct dredging operation, the physical and psychological health of the workers can be effectively guaranteed, and the working efficiency of the drum-shaped rotary filter screen dredging robot for the nuclear power plant is high.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power, in particular to a drum-shaped rotary filter desilting robot for a nuclear power plant. Background Art

[0002] The drum rotary filter of a nuclear power plant is an important cooling system equipment of the nuclear power plant, which filters all the seawater required for the nuclear power units.

[0003] During the operation of the nuclear power plant's drum-shaped rotating filter, mud, water, shellfish mixtures, etc. will accumulate at its bottom. Currently, cleaning operations are mostly performed manually using handheld cleaning spray guns and salvage nets. Toxic gases (carbon monoxide or sulfides produced by the mixture of various impurities) may exist at the bottom of the nuclear power plant's drum-shaped rotating filter, posing a health risk to personnel. In addition, manual dredging requires a lot of physical strength, is prone to fatigue, and takes a long time. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a drum-shaped rotary filter desilting robot for a nuclear power plant.

[0005] The utility model solves the technical problem by adopting the following technical solution: constructing a nuclear power plant drum rotary filter desilting robot, comprising a vehicle frame, a traveling device and a desilting device; the traveling device is connected to the vehicle frame, the desilting device is mounted on the vehicle frame, the desilting device comprises a auger mechanism, a suction pump, a submersible pump and a collection bag, the auger mechanism comprising a housing, an auger, a central shaft and a drive motor;

[0006] The shell has a semi-enclosed structure, the central shaft is mounted on the shell, the auger is mounted on the central shaft and the auger is extended along the axial direction of the central shaft; at least one end of the central shaft is connected to the output shaft of the drive motor; a suction port is provided on the shell, the suction pump is connected to the suction port, the collection bag is connected to the suction pump, and the submersible pump is connected to the collection bag to transport the silt mixture in the collection bag to land.

[0007] In some embodiments, the number of the augers is at least two, and at least two of the augers are continuously extended along the axial direction of the central axis.

[0008] In some embodiments, the vehicle frame includes a support frame and a support mechanism, and the running device is connected to the support frame;

[0009] The support mechanism includes a connecting rod and a driving member, the number of the connecting rods is at least two, and at least two of the connecting rods are arranged in parallel with each other, and the two ends of each of the connecting rods are respectively hinged to the upper part of the support frame and the shell, the number of the driving members is at least two, and at least two of the driving members are arranged in parallel with each other, and the two ends of each of the driving members are respectively connected to the lower part of the support frame and the middle part of the corresponding connecting rod.

[0010] In some embodiments, the driving member includes a hydraulic cylinder or a pneumatic cylinder.

[0011] In some embodiments, the support mechanism further includes a mounting plate connecting at least two of the connecting rods, and the suction pump is connected to the mounting plate.

[0012] In some embodiments, the nuclear power plant drum rotary filter desilting robot further comprises an electric control box mounted on the vehicle frame, and the vehicle frame is provided with a positioning module connected to the electric control box;

[0013] The vehicle frame is provided with a mounting rod, and the positioning module is arranged on the top of the mounting rod.

[0014] In some embodiments, the vehicle frame is provided with a camera lighting device connected to the electrical control box.

[0015] In some embodiments, the vehicle frame is provided with a multi-directional obstacle avoidance sonar and / or an imaging sonar connected to the electronic control box.

[0016] In some embodiments, a turbidity meter connected to the electrical control box is provided at the bottom of the frame.

[0017] In some embodiments, the walking device includes track wheels and tracks mounted on the track wheels.

[0018] The implementation of the utility model has the following beneficial effects: the application of the nuclear power plant drum-shaped rotary filter dredging robot can replace the staff in dredging operations, which can effectively protect the physical and mental health of the staff, and the nuclear power plant drum-shaped rotary filter dredging robot has high operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can derive other relevant drawings based on these drawings without inventive effort. In the drawings:

[0020] Figure 1 This is one of the structural schematic diagrams of the nuclear power plant drum rotary filter desilting robot in some embodiments of the present invention;

[0021] Figure 2 This is the second structural schematic diagram of the nuclear power plant drum rotary filter desilting robot in some embodiments of the present invention;

[0022] Figure 3 This is the third structural schematic diagram of a nuclear power plant drum rotary filter desilting robot in some embodiments of the present invention;

[0023] Figure 4 This is the fourth structural diagram of the nuclear power plant drum rotary filter desilting robot in some embodiments of the present invention;

[0024] Figure 5 It is a partial structural schematic diagram of a nuclear power plant drum rotary filter desilting robot in some embodiments of the present utility model. DETAILED DESCRIPTION

[0025] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now 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", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings and are constructed and operated in specific directions. They are only for the convenience of describing the present technical solution and do not indicate that the devices or components referred to must have specific directions. Therefore, they should not be understood as limiting the present invention.

[0026] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed", and "set" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, and they can be internal connections between two elements or interactions between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intervening elements. The terms "first", "second", and "third" are only used to facilitate the description of the present technical solution and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", and "third" can explicitly or implicitly include one or more of these features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may 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 obscuring the description of the present invention with unnecessary detail.

[0028] See Figures 1 to 5 The utility model shows a nuclear power plant drum rotary filter dredging robot, which can be used for dredging operations of nuclear power plant drum rotary filter. The equipment size of the nuclear power plant drum rotary filter dredging robot is less than 1m*1m*1.5m, the overall structure is compact, simple, and easy to operate. It can pass through the 1m*1m water pool lifting port as a whole to reach the bottom chamber of the nuclear power plant drum rotary filter for dredging operations.

[0029] The nuclear power plant drum filter desilting robot includes a vehicle frame 10, a running gear 20, and a desilting device 30. The running gear 20 is connected to the vehicle frame 10, and the desilting device 30 is mounted on the vehicle frame 10. The desilting device 30 includes a scraping mechanism 31, a suction pump 32, a submersible pump (not shown), and a collection bag (not shown). The scraping mechanism 31 can scrape and refine marine organisms and silt adsorbed on the bottom of the nuclear power plant drum filter, removing them from the underwater surface. The scraping mechanism 31 includes a housing 311, an auger 312, a central shaft 313, and a drive motor 314.

[0030] The housing 311 has a semi-enclosed structure. The central shaft 313 is mounted on the housing 311. The auger 312 is mounted on the central shaft 313 and extends axially along the central shaft 313. At least one end of the central shaft 313 is connected to the output shaft of the drive motor 314. The housing 311 is provided with a suction port 3111. The suction pump 32 is connected to the suction port 3111. The collection bag is connected to the suction pump 32. The submersible pump is connected to the collection bag to transport the sludge mixture in the collection bag to land.

[0031] Specifically, during operation, the dredging device 30 drives the motor 314 to drive the auger 312 to rotate at high speed. In this process, silt is collected, gravel, shells, etc. at the bottom of the nuclear power plant's drum-shaped rotating filter are crushed, and the mixture is transported to the vicinity of the suction port 3111. The silt mixture is then sucked into a collection bag through the suction pump 32. The collection bag is connected to the suction port of the submersible pump, and the silt mixture in the collection bag is transported to land through the submersible pump. The cleaning efficiency can reach 37.5 m2 / h, which can meet the cleaning demand of 150 m2 / 4h.

[0032] In some embodiments, the frame 10 may include a support frame 11 and a support mechanism 12. The support frame 11 is roughly a frame structure. The support frame 11 may be made of aluminum alloy to reduce weight. The support frame 11 may be partially made of carbon fiber to reduce equipment weight.

[0033] The support frame 11 may have a multi-layer structure, for example, a two-layer structure, wherein the upper layer may be used to place the electric control box 41, and the lower layer may be used to place the hydraulic valve box 50. The traveling device 20 is connected to the support frame 11, and the traveling device 20 may include a track wheel 21 and a track 22 mounted on the track wheel 21, and the track wheel 21 is connected to the support frame 11.

[0034] Understandably, the walking device 20 can adopt a crawler walking mode, and its power system can be selected from the existing hydraulic drive system. Two crawler wheels 21 are installed on both sides of the frame 10. Considering the complex underwater road conditions at the bottom chamber of the nuclear power plant drum rotary filter, the crawler 22 can be a combination of softer black rubber crawler and rubber nails to increase friction and prevent the nuclear power plant drum rotary filter dredging robot from slipping in the mud. Driven by the hydraulic drive system, the nuclear power plant drum rotary filter dredging robot performs forward and backward and steering movements at the bottom of the nuclear power plant drum rotary filter. The reason for choosing the hydraulic drive mode is that it has the advantages of large operating force, small size, smooth transmission and sensitive action, and is impact-resistant and vibration-resistant. It is very suitable for cleaning operations at the bottom of the nuclear power plant drum rotary filter. Of course, the walking device 20 can also select moving wheels (such as universal wheels) according to actual needs, and the walking device 20 can also select other power systems according to needs, such as a drive motor, etc., which are not specifically limited here.

[0035] The support mechanism 12 includes a connecting rod 121 and a driving member 122. There are at least two connecting rods 121, which are arranged relatively parallel and located on both sides of the suction pump 32. The two ends of each connecting rod 121 are respectively hinged to the upper portion of the support frame 11 and the housing 311. Furthermore, at least two first mounting seats are provided at intervals on the side of the housing 311 facing the support frame 11, and at least two second mounting seats are provided at intervals on the side of the support frame 11 facing the housing 311. The connecting rods 121 are connected to the first mounting seats and the second mounting seats respectively.

[0036] There are at least two driving members 122, each of which is arranged in parallel with the other. The two ends of each driving member 122 are respectively connected to the lower portion of the support frame 11 and the middle portion of the corresponding connecting rod 121. "Middle" here refers to the middle of the length of the connecting rod 121, which can be a wide range of positions. Furthermore, the driving member 122 comprises a hydraulic cylinder or a pneumatic cylinder. Preferably, the driving member 122 is a hydraulic cylinder that can be connected to the hydraulic valve box 50. Preferably, there are two connecting rods 121 and two driving members 122.

[0037] In some embodiments, the housing 311 may include a top plate, two side plates connected to both sides of the top plate in a length direction, and a rear plate connecting the top plate and the two side plates.

[0038] The top plate and / or the rear plate may be provided with the suction port 3111. The two ends of the central shaft 313 are respectively mounted on the two side plates, and the drive motor 314 may be at least one, at least one drive motor 314 is mounted on the housing 311, and the drive motor 314 may be mounted on the side plate and connected to one end of the central shaft 313. The drive motor 314 may include but is not limited to an underwater drive motor.

[0039] In some embodiments, there are at least two augers 312 , and at least two augers 312 are continuously extended along the axial direction of the central axis 313 .

[0040] like Figure 5 As shown, in some embodiments, the support mechanism 12 also includes a mounting plate 123 connecting at least two of the connecting rods 121 , and the suction pump 32 is connected to the mounting plate 123 . The suction pump 32 can be connected to the mounting plate 123 through an arc-shaped fixing plate 124 .

[0041] In some embodiments, the collection bag can be connected to the suction pump 32 via a pipe (such as a hose).

[0042] like Figures 1 to 4 In some embodiments, the nuclear power plant drum rotary filter dredging robot also includes an electrical control box 41 installed on the frame 10. The electrical control box 41 may have a waterproof shell, and electrical components arranged in the waterproof shell. The electrical components may include but are not limited to a controller, a memory, a communication module, and a power supply, etc. Of course, the electrical control box 41 can be selected from mature existing technologies and is not specifically limited here.

[0043] Furthermore, the frame 10 is provided with a positioning module 42 connected to the electrical control box 41. The frame 10 is provided with a mounting rod 13, and the positioning module 42 is located on top of the mounting rod 13. The positioning module 42 is used to detect the position of the nuclear power plant drum rotary screen desilting robot. The positioning module 42 is fixed to the mounting rod 13 so that it is above the seawater surface to prevent seawater interference with the positioning module 42, thereby improving positioning accuracy. The positioning module 42 includes but is not limited to a GPS module or a multi-mode GNSS module.

[0044] In some embodiments, the frame 10 is provided with a camera lighting device 43 connected to the electrical control box 41 for observing the bottom of the drum-shaped rotating filter of the nuclear power plant. The camera lighting device 43 can be selected from, including but not limited to, an industrial camera with a lighting lamp.

[0045] In some embodiments, the vehicle frame 10 is provided with a multi-directional obstacle avoidance sonar 44 and / or an imaging sonar 45 connected to the electrical control box 41. Preferably, the vehicle frame 10 is provided with the multi-directional obstacle avoidance sonar 44 and the imaging sonar 45 connected to the electrical control box 41, and the multi-directional obstacle avoidance sonar 44 and the imaging sonar 45 are spaced apart. The multi-directional obstacle avoidance sonar 44 can be used to scan obstacles around the nuclear power plant drum rotary filter dredging robot to achieve automatic obstacle avoidance. The imaging sonar 45 can be used to scan the bottom of the nuclear power plant drum rotary filter to form a three-dimensional map of the bottom of the nuclear power plant drum rotary filter. The three-dimensional map can be used to accurately determine the location of silt and marine organisms, thereby controlling the power plant drum rotary filter dredging robot to perform dredging work, thereby improving work efficiency.

[0046] In some embodiments, a turbidity meter 46 connected to the electrical control box 41 is provided at the bottom of the frame 10 . The turbidity meter 46 is installed at the bottom of the frame 10 and can be used to measure the turbidity of seawater.

[0047] The above-mentioned components such as the electric control box 41 , the positioning module 42 , the camera lighting device 43 , the multi-directional obstacle avoidance sonar 44 , the imaging sonar 45 , and the turbidity meter 46 can constitute a functional device 40 .

[0048] In some embodiments, the nuclear power plant drum rotary filter dredging robot may also include a host computer connected to the electrical control box 41 by wired or wireless means. The electrical control box 41 is used to receive information output by the positioning module 42, the camera lighting device 43, the multi-directional obstacle avoidance sonar 44, the image sonar 45, and the turbidity meter 46 and upload it to the host computer for display.

[0049] In some embodiments, the nuclear power plant drum filter desilting robot may further include an operating handle connected to the electrical control box 41 via a wired or wireless connection. The operator may use the operating handle to operate the nuclear power plant drum filter desilting robot. For example, the operator may send control information to the electrical control box 41 to adjust the camera lighting device 43, the multi-directional obstacle avoidance sonar 44, the image sonar 45, etc. through the electrical control box 41. Of course, the operating handle may not be provided, and this is not specifically limited here.

[0050] In some embodiments, the nuclear power plant drum filter desilting robot may further include a hydraulic valve box 50 mounted on the vehicle frame 10. The hydraulic valve box 50 may be connected to the traveling device 20 and the drive member 122. Furthermore, the nuclear power plant drum filter desilting robot may further include an oil tank and an oil pump connected to the hydraulic valve box 50. The oil tank and oil pump are placed on land to reduce the weight of the nuclear power plant drum filter desilting robot. The hydraulic valve box 50 is fixed to the vehicle frame 10 and contains multiple solenoid valves. Driven by the oil pump, the hydraulic oil in the oil tank passes through the solenoid valves in the hydraulic valve box 50 and enters the traveling device 20 and the drive member 122 (e.g., a hydraulic cylinder), thereby driving the traveling device 20 and the drive member 122 (e.g., a hydraulic cylinder). The opening and closing of the solenoid valves is controlled to start and stop the traveling device 20 and adjust the rotation angle of the support mechanism 12. Of course, the hydraulic valve box 50 can be made of mature existing technology and is not specifically limited here.

[0051] It can be understood that the application of the nuclear power plant drum rotary filter dredging robot can replace the staff in dredging operations, which can effectively protect the physical and mental health of the staff. In addition, the nuclear power plant drum rotary filter dredging robot has high operating efficiency and little impact on the nuclear power plant units, which can ensure the stable operation of the nuclear power plant units.

[0052] It can be understood that the above embodiments only express the preferred implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, all of which fall within the scope of protection of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should fall within the scope of coverage of the claims of the present invention.

Claims

1. A drum-shaped rotary filter desilting robot for a nuclear power plant, characterized in that: The invention comprises a vehicle frame (10), a running device (20) and a silt clearing device (30); the running device (20) is connected to the vehicle frame (10); the silt clearing device (30) is mounted on the vehicle frame (10); the silt clearing device (30) comprises a auger mechanism (31), a suction pump (32), a submersible pump and a collection bag; the auger mechanism (31) comprises a housing (311), an auger (312), a central shaft (313) and a drive motor (314); The shell (311) is a semi-enclosed structure, the central shaft (313) is mounted on the shell (311), the auger (312) is mounted on the central shaft (313) and the auger (312) is arranged to extend along the axial direction of the central shaft (313); at least one end of the central shaft (313) is connected to the output shaft of the drive motor (314); a suction port (3111) is provided on the shell (311), the suction pump (32) is connected to the suction port (3111), the collection bag is connected to the suction pump (32), and the submersible pump is connected to the collection bag to transport the silt mixture in the collection bag to land.

2. The nuclear power plant drum rotary filter desilting robot according to claim 1, characterized in that: The number of the augers (312) is at least two, and at least two of the augers (312) are continuously extended along the axial direction of the central axis (313).

3. The nuclear power plant drum rotary filter desilting robot according to claim 1, characterized in that: The vehicle frame (10) includes a support frame (11) and a support mechanism (12), and the running device (20) is connected to the support frame (11); The support mechanism (12) comprises a connecting rod (121) and a driving member (122), the number of the connecting rods (121) is at least two, and the at least two connecting rods (121) are arranged relatively parallel, and the two ends of each connecting rod (121) are respectively hinged to the upper part of the support frame (11) and the shell (311), the number of the driving members (122) is at least two, and the at least two driving members (122) are arranged relatively parallel, and the two ends of each driving member (122) are respectively connected to the lower part of the support frame (11) and the middle part of the corresponding connecting rod (121).

4. The nuclear power plant drum rotary filter desilting robot according to claim 3, characterized in that: The driving member (122) comprises a hydraulic cylinder or a pneumatic cylinder.

5. The nuclear power plant drum rotary filter desilting robot according to claim 3, characterized in that: The support mechanism (12) further comprises a mounting plate (123) connecting at least two of the connecting rods (121), and the suction pump (32) is connected to the mounting plate (123).

6. The nuclear power plant drum rotary filter desilting robot according to any one of claims 1 to 5, characterized in that: The nuclear power plant drum rotary filter desilting robot further comprises an electric control box (41) mounted on the vehicle frame (10), and a positioning module (42) connected to the electric control box (41) is provided on the vehicle frame (10); A mounting rod (13) is provided on the vehicle frame (10), and the positioning module (42) is provided on the top of the mounting rod (13).

7. The nuclear power plant drum rotary filter desilting robot according to claim 6, characterized in that: The vehicle frame (10) is provided with a camera lighting device (43) connected to the electric control box (41).

8. The nuclear power plant drum rotary filter desilting robot according to claim 6, characterized in that: The vehicle frame (10) is provided with a multi-directional obstacle avoidance sonar (44) and / or an image sonar (45) connected to the electric control box (41).

9. The nuclear power plant drum rotary filter desilting robot according to claim 6, characterized in that: A turbidity meter (46) connected to the electric control box (41) is provided at the bottom of the vehicle frame (10).

10. The nuclear power plant drum rotary filter desilting robot according to claim 1, characterized in that: The walking device (20) includes a track wheel (21) and a track (22) mounted on the track wheel (21).

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