CN111805389A - A kind of anti-corrosion maintenance device for seawater filter grid of nuclear power plant cold source system - Google Patents

Abstract

The invention provides an anti-corrosion maintenance device for a seawater filter grid of a cold source system of a nuclear power plant, which can be operated by a single person, realizes multi-grid, multi-angle and multi-path cleaning, greatly saves human resources and improves work efficiency , including a base and a casing, a drive motor is installed on the casing, and the drive motor cooperates with the first bevel gear set to drive the main shaft to rotate, a driven shaft arranged in parallel with the main shaft, and the driving shaft and the driven shaft are respectively provided with pulleys , A belt is installed between the pulleys, and the base is provided with a transmission mechanism mounting frame corresponding to the driving shaft and the driven shaft respectively. A transmission mechanism is respectively provided, and the driving shaft and the driven shaft cooperate to drive the transmission mechanism through the second bevel gear group, respectively. There are support rollers.

Description

A kind of anti-corrosion maintenance device for seawater filter grid of nuclear power plant cold source system

technical field

The invention relates to the technical field of maintenance equipment for a cold source system of a nuclear power plant, in particular to an anti-corrosion maintenance device for a seawater filter grid of a cold source system of a nuclear power plant.

Background technique

At present, in order to prevent sea creatures from adhering to the grille used for seawater filtration in the cold source system of nuclear power plants, the surface of the grille is coated with an antifouling coating. The coating ages, cracks, and falls off during service, and requires regular maintenance. At present, a more traditional multi-person operation is used at the same time, and each person holds a single angle grinder for operation, which not only wastes manpower, but also has low efficiency, and also has the problems of high safety risk and high cost.

In view of the current demand for nuclear power plants, it is urgent to develop an anti-corrosion maintenance device for the seawater filter grille of the cold source system of the nuclear power plant to realize automatic anti-corrosion maintenance of the grille, improve efficiency, reduce operation risks and costs.

SUMMARY OF THE INVENTION

In view of the above problems, the present invention provides an anti-corrosion maintenance device for the seawater filter grille of the cold source system of a nuclear power plant, which can be operated by a single person, can realize multi-grid, multi-angle and multi-path cleaning, and can greatly save human resources. , improve work efficiency, shorten maintenance and repair time, and reduce direct economic losses caused by shutdown and maintenance.

The technical solution is as follows: an anti-corrosion maintenance device for a seawater filtering grille of a cold source system of a nuclear power plant, comprising a base and a casing installed on the base, and a drive motor is installed on the casing, so the The drive motor rotates with the drive main shaft through the first bevel gear set, and also includes a driven shaft arranged in parallel with the main shaft. The drive shaft and the driven shaft are respectively provided with pulleys, and the pulleys are installed between the pulleys. There is a belt, the base is provided with a transmission mechanism mounting frame corresponding to the driving shaft and the driven shaft respectively, and the driving shaft and the driven shaft are respectively installed on the transmission mechanism mounting frame through the bearing seat. At the upper end, a transmission mechanism is respectively provided on the transmission mechanism mounting frame, and the driving shaft and the driven shaft respectively cooperate to drive the transmission mechanism through the second bevel gear set, at the end of the transmission mechanism and located in the The lower end of the base is connected with a grill cleaning mechanism, and the lower end of the base is also provided with a support roller corresponding to the grill.

Further, the grille cleaning mechanisms are respectively disposed on both sides of the grille, and guide rollers are respectively provided on the base corresponding to both sides of the grille.

Further, the second bevel gear set includes second driving bevel gears respectively installed on the driving shaft and the driven shaft, and the transmission mechanism includes a torque limiter connected to the second bevel gear set , one end of the torque limiter is connected with a second driven bevel gear that cooperates with the second driving bevel gear, the other end of the torque limiter is connected with a cross-shaft universal connector, and the cross-shaft universal connection The connector is connected to the third bevel gear set after connecting the floating bearing, the third bevel gear set is arranged in the mounting seat, and the third driving bevel gear of the third bevel gear set is connected with the cross shaft universal connector, so The third driving bevel gear meshes with the third driven bevel gear, and the third driven bevel gear is coaxially connected with the grille cleaning mechanism.

Further, the grid cleaning mechanism includes any one or any multiple of an electric shovel, an electric wire brush head, and a polishing head.

Further, the electric shovel, the wire brush head, and the polishing head are arranged in sequence.

Further, the front side and the rear side of the lower surface of the base respectively correspond to the grille, and are provided with transverse slide rails arranged perpendicular to the grille. There is a slider, the slider is provided with a connecting column, the lower connecting plate of the transmission mechanism is provided with an elongated hole corresponding to the connecting column, and the lower connecting plate of the transmission mechanism is arranged on the base through the connecting column and the elongated hole. Below, the lower end of the lower connecting plate of the transmission mechanism is provided with the mounting seat, the lower end of the base is also provided with a transverse limiting column parallel to the transverse slide rail, and the upper end of the lower connecting plate of the transmission mechanism is provided with an upper connection The upper connecting plate is provided with a through hole, the lateral limiting column is arranged through the through hole on the upper connecting plate, and the end of the lateral limiting column is also provided with a limiting plate, the limiting plate A spring is sleeved on the lateral limit post between the upper connecting plate and the upper connecting plate.

Further, at the lower end of the base, the front side of the grille cleaning mechanism located at the foremost end and the rear side of the grille cleaning mechanism located at the rearmost end are respectively provided with support rollers corresponding to the grilles, one of the The support roller is connected with a driving device.

Further, on the four corners of the base, casters are respectively provided through the screw lifting seat, and the screw lifting seat is also connected with an operating hand wheel.

Further, an operating armrest is provided at the rear end of the base.

Further, corresponding to each of the grill cleaning mechanisms, a dust suction device is further provided on the base for adsorbing the pollutants generated by the grill cleaning mechanism to clean the grill.

The anti-corrosion maintenance device for the seawater filter grid of the cold source system of the nuclear power plant of the present invention adopts the design idea of integrated control, uses only one motor driving device, and distributes the driving force to each grid cleaning mechanism through the transmission structure. To achieve the consistency of the work of the instrument, it is equipped with a grid cleaning mechanism corresponding to multiple grids on the base, which can clean multiple grids at the same time. The grid cleaning mechanism can use electric shovels and wire brushes according to the pollution of grids The head and polishing head clean the grille, connect the transmission mechanism of the grille cleaning mechanism, and connect the floating bearing through the universal joint of the cross shaft. Adjust the grinding force to avoid the large wear effect on the grid base, which can not only effectively remove the dirt, but also ensure the relative integrity of the grid base. On the lower connecting plate of the transmission mechanism, the grille cleaning mechanism connected to the lower connecting plate of the transmission mechanism through the mounting seat can always be close to the grille for cleaning, so as to ensure the cleaning effect of the grille cleaning mechanism. The anti-corrosion maintenance device of the seawater filter grid of the cold source system can greatly save human resources, improve work efficiency, shorten maintenance and repair time, and reduce direct economic losses caused by shutdown and maintenance.

Description of drawings

Fig. 1 is a schematic diagram from the first perspective of the anti-corrosion maintenance device of a seawater filter grill of a nuclear power plant cold source system of the present invention;

Fig. 2 is a schematic front view of the anti-corrosion maintenance device for the seawater filter grid of the cold source system of a nuclear power plant according to the present invention;

Fig. 3 is a bottom view schematic diagram of the anti-corrosion maintenance device of the seawater filter grid of the cold source system of a nuclear power plant according to the present invention;

4 is a schematic diagram from a second perspective of the anti-corrosion maintenance device for a seawater filter grid of a nuclear power plant cold source system according to the present invention;

FIG. 5 is a schematic diagram from a third angle of view of an anti-corrosion maintenance device for a seawater filter grid of a nuclear power plant cold source system according to the present invention.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the drawings provided in this embodiment are only to illustrate the basic concept of the present invention in a schematic way, so the drawings only show the basic concepts of the present invention. The relevant components in the invention are not drawn according to the number, shape and size of the components in the actual implementation. The type, number and ratio of each component in the actual implementation can be arbitrarily changed, and the layout of the components may also be different. for complex.

1 to 5 , an anti-corrosion maintenance device for a seawater filter grid of a nuclear power plant cold source system of the present invention includes a base 1 and a casing 2 installed on the base 1, and a drive motor is installed on the casing. 3. The drive motor 3 rotates with the drive main shaft 5 through the first bevel gear set 4, and also includes a driven shaft 6 arranged parallel to the main shaft. On the side, the driving shaft 5 and the driven shaft 6 are respectively provided with a pulley 7, a belt 8 is installed between the pulleys 7, the base 1 is respectively provided with a transmission mechanism mounting frame 9 corresponding to the driving shaft and the driven shaft, and the driving shaft 5 The driven shaft 6 and the driven shaft 6 are respectively installed on the upper end of the transmission mechanism mounting frame 9 through the bearing seat 10. The transmission mechanism mounting frame 9 is respectively provided with a transmission mechanism, and the driving shaft 5 and the driven shaft 6 are respectively driven by the second bevel gear set 10. The transmission mechanism, at the end of the transmission mechanism and located at the lower end of the base 1 is connected with a grille cleaning mechanism 11, at the lower end of the base, at the front side of the grille cleaning mechanism at the front end and at the rear of the grille cleaning mechanism at the rearmost end The sides are respectively provided with support rollers 12 corresponding to the grille, and the anti-corrosion maintenance device walks on the grille through the support rollers.

Specifically, the grille cleaning mechanisms 11 are respectively arranged on both sides of the grille, so as to facilitate the cleaning of the two sides of the grille. Guide rollers 13 are respectively provided on the base 1 corresponding to both sides of the grille. Passing between the two guide wheels 13, the guide rollers 13 are arranged to guide the anti-corrosion maintenance device during operation, so as to ensure that the grille cleaning mechanism can clean the grille.

In this embodiment, the second bevel gear set includes a second drive bevel gear 101 respectively installed on the driving shaft 5 and the driven shaft 6, and the transmission mechanism includes a torque limiter 15 connected to the second bevel gear set. The torque limiter One end of the torque limiter 15 is connected with a second driven bevel gear 102 that cooperates with the second driving bevel gear 101, and the other end of the torque limiter 15 is connected with a cross-shaft universal connector 16, and the cross-shaft universal connector 16 will pass through the base 1. On the base 1, corresponding cross-axis universal connectors 16 are respectively provided with through holes, and the cross-axis universal connectors 16 are connected to the third bevel gear set after connecting to the floating bearing 17, and the floating bearing 17 is correspondingly provided with a bearing seat, The third bevel gear set is arranged in the mounting seat 14, the third driving bevel gear of the third bevel gear set is connected with the cross shaft universal connector 16, the third driving bevel gear is meshed with the third driven bevel gear, and the third bevel gear is engaged with the third driven bevel gear. The three driven bevel gears are coaxially connected to the grille cleaning mechanism 11. With this arrangement, the drive motor 3 can synchronously drive all the grille cleaning mechanisms 11 to work through the transmission mechanism. It adopts the design idea of integrated control and only uses one The motor drive device, through the transmission structure, distributes the driving force to each grille cleaning mechanism to achieve the consistency of the work of the equipment. This design can also make the weight of the equipment as light as possible. The longer the service life of the metal material, his Some basic strength and hardness will decrease. On the one hand, it can avoid the deformation of the grille due to the weight of the equipment during construction. On the other hand, it can be more convenient and quicker during the operator's handling of the equipment;

In addition, the cross-axis universal connector 16 is connected to the floating bearing 17 to cooperate, so as to realize the automatic adjustment of the grinding force according to the degree of adhesion of marine organisms on the surface of the grille and the degree of aging of the coating, so as to avoid a large wear effect on the grille substrate. It can not only effectively remove dirt, but also ensure the relative integrity of the grid matrix.

The grid cleaning mechanism 11 includes any one or any of multiple types of electric shovels, electric wire brush heads, and polishing heads. Specifically, in this embodiment, corresponding to each grid, one electric shovel 111 and two electric shovels are successively arranged. The polishing head 122, the first electric shovel 11, the electric shovel includes a vibrating device, the cutter head has a cutting effect during the vibration process, and peels off the marine biological attachments from the grille, so that the marine attachments can be removed before grinding. Shovel it off first, thereby reducing the working intensity of the polishing head, so that the polishing efficiency of the polishing head can be greatly improved, and then the two polishing heads 122 set up later can grind and polish the grid, which can not only repair and remove residues It can also play the role of smoothing and smoothing.

Specifically in this embodiment, the front side and the rear side of the lower surface of the base 1 respectively correspond to the grille, and are provided with transverse slide rails 18 arranged perpendicular to the grille. The sides are respectively provided with sliders 19, the sliders 19 are provided with connecting columns 20, the lower connecting plate 21 of the transmission mechanism is provided with elongated holes 22 corresponding to the connecting columns, and the lower connecting plate 21 of the transmission mechanism passes through the connecting columns 20 and the elongated holes 22. The lower end of the connecting column can limit the position of the lower connecting plate of the transmission mechanism. The lower end of the lower connecting plate 21 of the transmission mechanism is provided with a mounting seat 14, and the lower end of the base 1 is also provided with a parallel horizontal slide rail 18. The upper connecting plate 24 is provided on the upper end of the lower connecting plate of the transmission mechanism, and the upper connecting plate 24 is provided with a through hole. The end of the column 23 is also provided with a limit plate 25, the lateral limit column between the limit plate 25 and the upper connecting plate 24 is sleeved with a spring 26, and the limit plate 25 on the lateral limit column 23 cooperates with the spring 26, so that The spring 26 keeps force acting on the lower connecting plate 24 of the transmission mechanism, so that the grille cleaning mechanism 11 connected to the lower connecting plate of the transmission mechanism through the mounting seat 14 can always be close to the grille for cleaning, ensuring the cleaning of the grille cleaning mechanism Effect.

In addition, on the four corners of the base 1 , casters 28 are respectively provided through the screw lifting seat 27 , and the screw lifting seat is also connected with an operating hand wheel 29 . This design can facilitate the height adjustment, so that the anti-corrosion maintenance device can pass the supporting roller 12 . It is convenient to move the anti-corrosion maintenance device after walking on the support grille.

In addition, in the present embodiment, the operating armrest 30 is provided at the rear end of the base.

In an embodiment of the present invention, corresponding to each grille cleaning mechanism is further provided with a dust suction device on the base, which is used for adsorbing the pollutants generated by the grille cleaning mechanism to clean the grille. When the grille cleaning mechanism is polished, the The generated dust not only causes huge pollution to the surrounding environment, but also poses a huge threat to the life, health and safety of operators. Therefore, in the whole design process, a vacuum cleaner is added to absorb the generated pollutants. The dust device runs synchronously with the grill cleaning mechanism, which can avoid polluting the environment and ensure that the health of the operator is not infringed.

In another embodiment of the present invention, the grid cleaning mechanism includes an electric shovel, a wire brush head, and a polishing head arranged in sequence corresponding to the grid. In the example, the first step is to add an electric blade to remove the marine attachments before grinding, thereby reducing the work intensity of the subsequent grinding device, so that the grinding efficiency can be greatly improved, the second step, The wire brush head is used to remove the aged coating to achieve the effect of cleaning; the third step is to use the polishing head to polish the grille polished by the wire brush head, which can not only repair and remove residues, but also It plays the role of grinding and smoothing. Of course, in other embodiments of the present invention, the grid cleaning mechanism can also have more settings, and can be provided with more than three or more, electric shovel, wire brush head, polishing head The number can also be set according to the attachment of marine attachments on the grille, which can be adjusted.

In an embodiment of the present invention, the support roller may also be connected with a driving device, and the anti-corrosion maintenance device is driven by the driving device to walk, so that the wheel can be automatically walked, and the difficulty of personnel operation can be reduced.

In the past, the grid cleaning of the seawater filtration of the cold source system of the nuclear power plant was performed by a relatively traditional multi-person operation, each holding a single angle grinder, which not only wastes manpower, but also has low efficiency. The anti-corrosion maintenance device of the seawater filter grille of the plant's cold source system realizes the grinding and cleaning of the rust, aging coating and marine organisms on the surface of the grille. Maximize efficiency, shorten maintenance and repair time, and reduce direct economic losses caused by downtime and maintenance.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the appended claims. All changes within the meaning and range of the equivalents of , are included in the present invention.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. The utility model provides a sea water of cold source system of nuclear power plant filters anticorrosive device of maintaining of grid, includes the base and installs casing on the base, its characterized in that: install driving motor on the casing, driving motor cooperates the drive spindle through first bevel gear group and rotates, still include parallel with the driven shaft that the main shaft set up, the driving shaft with correspond respectively on the driven shaft and be equipped with the belt pulley, install the belt between the belt pulley, correspond respectively on the base the driving shaft with the driven shaft is equipped with the drive mechanism mounting bracket, the driving shaft with the driven shaft is installed through the bearing frame respectively the upper end of drive mechanism mounting bracket, be equipped with drive mechanism on the drive mechanism mounting bracket respectively, the driving shaft with the driven shaft is respectively through second bevel gear group cooperation drive mechanism's end just is located the lower extreme of drive mechanism is connected with the clean mechanism of grid, the base lower extreme still corresponds the grid and is equipped with supporting roller.

2. The device for preventing corrosion and maintaining the seawater filtering grille of the cold source system of the nuclear power plant as claimed in claim 1, wherein: the grating cleaning mechanisms are respectively and correspondingly arranged on two sides of the grating, and guide rollers are respectively arranged on the base and correspond to two sides of the grating.

3. The device for preventing corrosion and maintaining the seawater filtering grille of the cold source system of the nuclear power plant as claimed in claim 1, wherein: the second bevel gear set comprises second driving bevel gears which are respectively installed on the driving shaft and the driven shaft, the transmission mechanism comprises a torque limiter which is connected with the second bevel gear set, one end of the torque limiter is connected with a second driven bevel gear which is matched with the second driving bevel gear, the other end of the torque limiter is connected with a cross universal connector, the cross universal connector is connected with a third bevel gear set after being connected with a floating bearing, the third bevel gear set is arranged in the installation seat, a third driving bevel gear of the third bevel gear set is connected with the cross universal connector, the third driving bevel gear is meshed with the third driven bevel gear, and the third driven bevel gear is coaxially connected with the grid cleaning mechanism.

4. The device for preventing corrosion and maintaining the seawater filtering grille of the cold source system of the nuclear power plant as claimed in claim 1, wherein: the grille cleaning mechanism comprises any one or more of an electric scraper knife, an electric steel wire brush head and a polishing head.

5. The device for preventing corrosion and maintaining the seawater filtering grille of the cold source system of the nuclear power plant as claimed in claim 4, wherein: the electric scraper knife, the steel wire brush head and the polishing head are sequentially arranged.

6. The device for preventing corrosion and maintaining the seawater filtering grille of the cold source system of the nuclear power plant as claimed in claim 1, wherein: the front side and the rear side of the lower surface of the base respectively correspond to the grids and are provided with transverse sliding rails which are vertical to the grids, the two sides of the grid on the transverse slide rail are respectively provided with a slide block, the slide block is provided with a connecting column, the lower connecting plate of the transmission mechanism is provided with a strip hole corresponding to the connecting column, the lower connecting plate of the transmission mechanism is arranged below the base through the connecting column and the strip hole in a matching way, the lower end of the lower connecting plate of the transmission mechanism is provided with the mounting seat, the lower end of the base is also provided with a transverse limiting column parallel to the transverse slide rail, the upper end of the lower connecting plate of the transmission mechanism is provided with an upper connecting plate, the upper connecting plate is provided with a through hole, a transverse limiting post passes through the through hole on the upper connecting plate, the end part of the transverse limiting column is also provided with a limiting plate, and a spring is sleeved on the transverse limiting column between the limiting plate and the upper connecting plate.

7. The device for preventing corrosion and maintaining the seawater filtering grille of the cold source system of the nuclear power plant as claimed in claim 1, wherein: and supporting rollers are respectively arranged at the lower end of the base, at the front side of the grille cleaning mechanism at the foremost end and at the rear side of the grille cleaning mechanism at the rearmost end, corresponding to the grille, and one of the supporting rollers is connected with a driving device.

8. The device for preventing corrosion and maintaining the seawater filtering grille of the cold source system of the nuclear power plant as claimed in claim 1, wherein: the four corners of the base are respectively provided with trundles through screw rod lifting seats, and the screw rod lifting seats are also connected with operating hand wheels.

9. The device for preventing corrosion and maintaining the seawater filtering grille of the cold source system of the nuclear power plant as claimed in claim 1, wherein: an operating armrest is arranged at the rear end of the base.

10. The device for preventing corrosion and maintaining the seawater filtering grille of the cold source system of the nuclear power plant as claimed in claim 1, wherein: the base is provided with a dust suction device corresponding to each grid cleaning mechanism and used for adsorbing pollutants generated by the grid cleaning mechanisms for cleaning the grids.

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