Nuclear power station water intake cold source decontamination device

Abstract

The utility model discloses a nuclear power station water intake cold source decontamination device which comprises a ship body, the ship body is provided with a first end and a second end which are opposite, and the first end of the ship body is provided with a guide portion which is of a horn-shaped opening structure. The ship body is provided with a conveying mechanism which is obliquely arranged upwards from the first end of the ship body to the second end of the ship body and comprises a conveying belt, and one end of the conveying belt is arranged close to one side of the guide part; the ship body is further provided with a crushing mechanism, the crushing mechanism is arranged on a conveying path of the conveying belt, and the crushing mechanism comprises at least one double-shaft crusher used for crushing objects to be cleaned. The device can salvage, crush, transport and the like floating garbage on the surface of the nuclear power water intake, and manual salvage and diving high-risk operation are reduced. Compared with other fixed trash holding facilities, the trash holding device can mechanically hold a cold source water intake area, reduce threats of sundries to a cold source of a power plant, and guarantee normal and stable operation of a nuclear power unit.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power, in particular to a cold source cleaning device for a water intake of a nuclear power station. Background Art

[0002] Cold source safety is the lifeline of nuclear power plants. As the ultimate heat sink, cold sources play a vital role in the process of heat extraction. The threats to cold source safety come from foreign objects such as marine organisms and plants blocking the filter, and from the increase in artificial activities around the water intake, such as marine crop farming and domestic waste discharge. Nuclear power plants are affected by marine farming, marine organisms, domestic waste, etc., and the threat of debris blocking the water intake system is increasing.

[0003] According to monitoring data, about 2,000-5,000 kilograms of domestic garbage are salvaged from the nuclear power plant water intake every week. A large amount of debris entering the water intake increases the interception pressure of the various sewage nets in the water intake open channel, which can easily cause damage to the net surface; a large amount of plastic garbage is adsorbed on the underwater part of the interception net, making it very difficult to clean up during daily periods. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a cold source cleaning device for a water intake of a nuclear power plant.

[0005] The utility model solves the technical problem by adopting a technical solution: constructing a cold source cleaning device for a water intake of a nuclear power plant, comprising a hull, the hull having a first end and a second end opposite to each other, the first end of the hull having a guide portion, the guide portion being a trumpet-shaped opening structure;

[0006] The hull is provided with a conveying mechanism, which is arranged upwardly and obliquely from the first end of the hull to the second end of the hull, and the conveying mechanism includes a conveyor belt, one end of which is arranged close to one side of the guide part;

[0007] The hull is also provided with a crushing mechanism, which is arranged on the conveying path of the conveyor belt and includes at least one double-shaft crusher for crushing the cleaning object.

[0008] In some embodiments, at least one manipulator is provided on a side of the hull close to the guide portion.

[0009] In some embodiments, the conveying mechanism further includes a mounting frame, and the conveyor belt is disposed on the mounting frame.

[0010] In some embodiments, guide limit plates are provided on both sides of the mounting frame in the moving direction of the conveyor belt.

[0011] In some embodiments, a plurality of photoelectric probes are also provided on the mounting frame.

[0012] In some embodiments, a plurality of monitoring cameras are also provided on the mounting frame.

[0013] In some embodiments, at least one bracket is disposed on the mounting frame, at least one pressure roller is disposed on the bracket, and at least one pressure roller is disposed opposite to the conveyor belt.

[0014] In some embodiments, the crushing mechanism is disposed on at least one of the supports.

[0015] In some embodiments, the dual-shaft crusher includes a first mounting shaft, a second mounting shaft;

[0016] The first installation shaft is provided with a plurality of first crushing blades, and one end of the first installation shaft is connected to the first driving member; the second installation shaft is provided with a plurality of second crushing blades, and one end of the second installation shaft is connected to the second driving member.

[0017] In some embodiments, the first drive member includes a first drive motor, and the second drive member includes a second drive motor.

[0018] The implementation of the utility model has the following beneficial effects: the cold source cleaning device for the water intake of a nuclear power plant has processing functions such as garbage collection, garbage salvage, garbage crushing, garbage storage and garbage transfer. It can salvage, crush and transport floating garbage on the surface of the nuclear power water intake, reducing manual salvage and high-risk diving operations.

[0019] Compared with other fixed pollution interception facilities, the cold source pollution cleaning device at the nuclear power plant's water intake is movable and can carry out mobile interception of the cold source water intake area, reducing the threat of debris to the power plant's cold source and ensuring the normal and stable operation of the nuclear power units. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0021] Figure 1 It is one of the structural schematic diagrams of the cold source cleaning device for the water intake of a nuclear power plant in some embodiments of the utility model;

[0022] Figure 2 This is the second structural schematic diagram of the cold source cleaning device for the water intake of a nuclear power plant in some embodiments of the utility model;

[0023] Figure 3This is the third structural schematic diagram of the cold source cleaning device for the water intake of a nuclear power plant in some embodiments of the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the transmission mechanism in some embodiments of the utility model;

[0025] Figure 5 It is a partial structural schematic diagram of a double-shaft crusher in some embodiments of the utility model. DETAILED DESCRIPTION

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods 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, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0027] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship 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 intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the 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 the specific circumstances.

[0028] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention 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 invention.

[0029] See also Figures 1 to 5 The utility model shows a nuclear power plant water intake cold source cleaning device, which can be used to intercept, collect, salvage, crush, store and transport domestic garbage and marine organisms in the nuclear power plant cold source water intake area.

[0030] The cold source cleaning device for the water intake of a nuclear power plant may include a hull 10 having a first end and a second end opposite to each other. The first end of the hull 10 has a guide portion 11 having a trumpet-shaped opening structure.

[0031] The hull 10 is provided with a conveying mechanism 20, which is arranged upwardly and obliquely from the first end of the hull 10 to the second end of the hull 10, and the conveying mechanism 20 includes a conveyor belt 21, one end of which is arranged close to one side of the guide part 11;

[0032] The hull 10 is further provided with a crushing mechanism 30 , which is arranged on the conveying path of the conveyor belt 21 , and includes at least one double-shaft crusher 31 for crushing the cleaning object.

[0033] The cold source cleaning device for the water intake of a nuclear power plant can be a catamaran barge structure. For the purpose of cleaning, the platform can be a single-bottom, single-deck non-self-propelled steel engineering deck barge. The "first end" here can be the "bow" and the second end can be the "stern". The guide part 11 of the bow is a trumpet-shaped large opening structure, which can realize the garbage collection of the cross section. The cold source cleaning device for the water intake of a nuclear power plant can be moved to a suitable garbage disposal area according to actual needs.

[0034] like Figures 1 to 3 As shown, at least one manipulator 40 may be provided on one side of the hull 10 close to the guide portion 11. The manipulator 40 may be used to assist in collecting and straightening out garbage in the water flow. The manipulator 40 may be configured with one, two or three manipulators, and the number and location of the manipulators 40 may be adjusted according to actual needs, and are not specifically limited here.

[0035] See also Figure 4 In some embodiments, the conveying mechanism 20 further includes a mounting frame 22, and the conveyor belt 21 is disposed on the mounting frame 22. The mounting frame 22 may be made of stainless steel, for example, stainless steel 316L, to improve corrosion resistance. The conveyor belt 21 may be gear-driven, and the motor 211 of the conveyor belt 21 may be disposed at the second end of the mounting frame 22 close to the hull 10.

[0036] In some embodiments, the mounting frame 22 is provided with guide limit plates 23 on both sides of the moving direction of the conveyor belt 21. The two guide limit plates 23 can be arranged close to one side of the guide portion 11 to guide the garbage at the guide portion 11 to flow into the conveyor belt 21, and then be conveyed by the conveyor belt 21 to the crushing mechanism 30 for crushing.

[0037] In some embodiments, a support frame 24 is further provided below the mounting frame 22. The support frame 24 may be one or more. If there are more than one, the multiple support frames 24 may be arranged to extend at intervals along the length direction of the mounting frame 22. The support frame 24 may be made of stainless steel, for example, stainless steel 316L, to improve corrosion resistance. The support frame 24 may be an integral structure with the mounting frame 22, or the support frame 24 may be detachably connected to the mounting frame 22, for example, it may be threadedly connected. The detachable connection is convenient for modular production, assembly, and later maintenance and repair. In other embodiments, the support frame 24 may be a lifting support frame to facilitate adjustment of the inclination angle of the conveyor belt 21. The lifting support frame may be a pneumatic lifting support frame or a hydraulic lifting support frame. It may be a product of the prior art, which is not specifically limited here.

[0038] In some embodiments, a plurality of photoelectric probes are also provided on the mounting frame 22, and the photoelectric probes may also be provided on other structures of the conveying path of the conveyor belt 21, and the photoelectric probes are mainly used to detect the number of cleaning objects (such as garbage, marine life).

[0039] In some embodiments, a plurality of monitoring cameras are also provided on the mounting frame 22, and the monitoring cameras can also be arranged on other structures of the conveying path of the conveyor belt 21. The monitoring cameras are mainly used to detect the conditions of the cleaning objects (such as garbage, marine life), for example, monitoring the quantity and volume of the cleaning objects, etc., and can be monitored by taking pictures or shooting videos.

[0040] In some embodiments, at least one bracket 25 is provided on the mounting frame 22, and at least one pressure roller 26 is provided on the bracket 25. The at least one pressure roller 26 is located above the transmission belt 21, and the pressure roller 26 is arranged opposite to the conveyor belt 21. The pressure roller 26 is mainly used to guide and squeeze the cleaning object on the conveyor belt 21, so that the cleaning object enters the subsequent crushing mechanism 30 from the space between the pressure roller 26 and the conveyor belt 21 as much as possible. Of course, in other embodiments, the pressure roller 26 may not be provided.

[0041] In some embodiments, the crushing mechanism 30 is disposed on at least one bracket 25. Of course, the crushing mechanism 30 can also be installed on the conveying path of the conveyor belt 21 through other supporting structures. The crushing mechanism 30 can be provided in plurality, and the plurality of crushing mechanisms 30 can be arranged at intervals along the conveying path of the conveyor belt 21. Different crushing mechanisms 30 can be configured with double-shaft crushers 31 of different sizes to crush the same or different types of cleaning objects into different sizes. For example, plastics, marine organisms or other impurities can be crushed into different sizes.

[0042] In some embodiments, the crushing mechanism 30 may include a frame, and a double-shaft crusher 31 is installed in each frame. The cleaning object enters the frame and is crushed into objects of different sizes by the double-shaft crusher 31.

[0043] like Figure 5 As shown, in some embodiments, each double-shaft crusher 31 may include a first mounting shaft 311 and a second mounting shaft 312; the first mounting shaft 311 is provided with a plurality of first crushing blades 3111, which may be staggered along the axial direction of the first mounting shaft 311, and one end of the first mounting shaft 311 is connected to the first driving member; the second mounting shaft 312 is provided with a plurality of second crushing blades 3112, which may be staggered along the axial direction of the second mounting shaft 312, and one end of the second mounting shaft 312 is connected to the second driving member. The first mounting shaft 311 and the second mounting shaft 312 may be spaced apart in the height direction, and the end of the first crushing blade 3111 may be located between the two second crushing blades 3112, and the end of the second crushing blade 3112 may be located between the two first crushing blades 3111, that is, the first crushing blade 3111 and the second crushing blade 3112 are staggered to crush the cleaning object.

[0044] Preferably, the first crushing blade 3111 is a double-edged blade, and the second crushing blade 3112 is a double-edged blade. The first crushing blade 3111 and the second crushing blade 3112 shear each other to achieve the requirement of shredding materials. The size of the shredded materials is related to the thickness and number of teeth of the crushing blade. The thinner the crushing blade, the smaller the size of the shredded materials. The more teeth there are, the shorter the length of the shredded materials. Therefore, crushing blades of different specifications can be selected according to actual needs.

[0045] Preferably, the first driving member includes a first driving motor, and the second driving member includes a second driving motor. The driving motor may be a servo motor, which has high precision and can realize forward and reverse rotation functions.

[0046] In some embodiments, a storage conveyor belt may be provided on the second end of the hull 10 near the material output end of the conveyor belt 21 to facilitate the drainage and storage of garbage in the short term. The storage conveyor belt may include a main storage conveyor belt and an auxiliary storage conveyor belt, wherein the main storage conveyor belt may be arranged longitudinally along the length of the ship to receive small-sized garbage falling from the small-sized garbage inlet and garbage crushed by the double-shaft crusher. The auxiliary storage conveyor belt may be arranged transversely along the width of the ship to receive the garbage transported by the main storage conveyor belt and transport the garbage to a transfer vehicle or the like. The main storage conveyor belt and the auxiliary storage conveyor belt may be provided with photoelectric switches and surveillance cameras to automatically or manually monitor the amount of garbage stored. The transfer of garbage may be reasonably arranged according to weather conditions, garbage estimates and other conditions to avoid the garbage from falling into the water again after crushing, causing subsequent pollution.

[0047] Of course, the hull 10 may be provided with a garbage storage and collection room, etc., which can be used for storing garbage, etc., and then the hull 10 can travel to the shore to transfer the garbage to a garbage truck for transportation.

[0048] Understandably, the cold source cleaning device at the nuclear power plant's water intake has processing functions such as garbage collection, garbage salvage, garbage crushing, garbage storage and garbage transfer. It can salvage, crush and transport floating garbage on the surface of the nuclear power plant's water intake, reducing manual salvage and high-risk diving operations.

[0049] Compared with other fixed pollution interception facilities, the cold source pollution cleaning device at the nuclear power plant's water intake is movable and can carry out mobile interception of the cold source water intake area, reducing the threat of debris to the power plant's cold source and ensuring the normal and stable operation of the nuclear power units.

[0050] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A cold source cleaning device for a water intake of a nuclear power plant, characterized in that: The invention comprises a hull (10), wherein the hull (10) has a first end and a second end opposite to each other, wherein the first end of the hull (10) has a guide portion (11), and the guide portion (11) is a trumpet-shaped opening structure; The hull (10) is provided with a conveying mechanism (20), the conveying mechanism (20) is arranged obliquely upward from the first end of the hull (10) to the second end of the hull (10), the conveying mechanism (20) comprises a conveying belt (21), one end of the conveying belt (21) is arranged close to one side of the guide portion (11); The hull (10) is also provided with a crushing mechanism (30), which is arranged on the conveying path of the conveyor belt (21), and comprises at least one double-shaft crusher (31) for crushing the cleaning object.

2. The cold source cleaning device for water intake of a nuclear power plant according to claim 1, characterized in that: At least one manipulator (40) is provided on a side of the hull (10) close to the guide portion (11).

3. The cold source cleaning device for water intake of a nuclear power plant according to claim 1, characterized in that: The conveying mechanism (20) further comprises a mounting frame (22), and the conveying belt (21) is arranged on the mounting frame (22).

4. The cold source cleaning device for water intake of a nuclear power plant according to claim 3, characterized in that: The mounting frame (22) is provided with guide limit plates (23) on both sides of the conveyor belt (21) in the moving direction.

5. The cold source cleaning device for water intake of a nuclear power plant according to claim 3, characterized in that: The mounting frame (22) is also provided with a plurality of photoelectric probes.

6. The cold source cleaning device for water intake of a nuclear power plant according to claim 3, characterized in that: The mounting frame (22) is also provided with a plurality of monitoring cameras.

7. The cold source cleaning device for water intake of a nuclear power plant according to claim 3, characterized in that: At least one bracket (25) is provided on the mounting frame (22), at least one pressure roller (26) is provided on the bracket (25), and at least one pressure roller (26) is arranged opposite to the conveyor belt (21).

8. The cold source cleaning device for water intake of a nuclear power plant according to claim 7, characterized in that: The crushing mechanism (30) is arranged on at least one of the brackets (25).

9. The cold source cleaning device for water intake of a nuclear power plant according to claim 1, characterized in that: The double-shaft crusher (31) comprises a first installation shaft (311) and a second installation shaft (312); The first installation shaft (311) is provided with a plurality of first crushing blades (3111), and one end of the first installation shaft (311) is connected to the first driving member; the second installation shaft (312) is provided with a plurality of second crushing blades (3112), and one end of the second installation shaft (312) is connected to the second driving member.

10. The cold source cleaning device for water intake of a nuclear power plant according to claim 9, characterized in that: The first driving member includes a first driving motor, and the second driving member includes a second driving motor.

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