CN219678279U

CN219678279U - Carbon powder pollution prevention device of vertical hydroelectric generating set

Info

Publication number: CN219678279U
Application number: CN202321203920.4U
Authority: CN
Inventors: 刘波
Original assignee: Chongqing Water Turbine Works Co Ltd
Current assignee: Chongqing Water Turbine Works Co Ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-09-12
Anticipated expiration: 2033-05-18

Abstract

The utility model relates to the technical field of hydraulic turbine generators and discloses a carbon dust pollution prevention device of a vertical hydraulic turbine generator set, which comprises a fixing screw rod, wherein the fixing screw rod is fixedly connected to the top of a collecting ring cover, and the lower end part of the fixing screw rod is used for being connected with a carbon brush.

Description

Carbon powder pollution prevention device of vertical hydroelectric generating set

Technical Field

The utility model relates to the technical field of hydraulic turbine generators, in particular to a carbon dust pollution prevention device of a vertical hydraulic turbine generator set.

Background

The carbon brush and the collecting ring are one of important components of the vertical water turbine unit, and in the running process of the water turbine generator unit, a certain amount of carbon powder can be generated due to contact friction between the carbon brush and the collecting ring, and the carbon powder not only can pollute the running environment of the collecting ring, but also can pollute a cooling lubricating oil pool, so that the normal running of the water turbine unit is influenced.

The Chinese patent document CN201369487Y discloses an oil pollution prevention carbon powder collecting device of a hydraulic generator, which comprises a lower carbon powder collector, an upper carbon powder collector, a lower dust collection pipe, an upper dust collection pipe and an upper split annular dust collection cover, wherein one end of the upper split annular dust collection cover is provided with an upper air inlet, the other end of the upper split annular dust collection cover is fixedly communicated with an upper tangential dust collection opening, an upper brush box is placed into the upper split annular dust collection cover through an upper brush box hole, and the upper tangential dust collection opening is communicated with the upper carbon powder collector through the upper dust collection pipe; the lower split annular dust hood is provided with a lower air inlet, the other end of the lower split annular dust hood is fixedly communicated with a lower tangential dust collection opening, the lower tangential dust collection opening is communicated with a lower carbon powder collection opening through a lower dust collection pipe, and a lower brush box is placed into the lower split annular dust hood through a lower brush box hole.

This prior art has the following disadvantages: the existing carbon dust pollution prevention device needs to be additionally provided with dust collecting equipment, the whole structure is complex, the dust collecting device and the collecting device are high in price, and the existing carbon dust pollution prevention device also needs to be matched with control circuits and pipelines, so that additional burden is brought to daily maintenance work.

Disclosure of Invention

The utility model provides a carbon dust pollution prevention device of a vertical hydroelectric generating set, which aims to solve the technical problems of complex structure and high cost of the existing carbon dust pollution prevention device.

In order to prevent the carbon powder from being influenced by air pressure or vibration to move in the collecting chamber again, a plurality of carbon powder storage grid plates are arranged in the carbon powder collecting box, the collecting chamber is divided into a plurality of storage grids by the carbon powder storage grid plates, and the filter cotton is fixed on the carbon powder storage grid plates.

In order to further reduce the air pressure flow, reduce the irregular motion's in-process range that carbon dust dropped, the screw rod extension is connected the carbon dust and is collected the box middle part, the left end and the right-hand member of carbon dust collection box upwards buckle and extend, the left end of carbon dust collection box is for keeping away from the one end of carbon brush, the left end of carbon dust collection box is higher than the right-hand member, the right-hand member of carbon dust collection box is located the collecting ring below.

In order to improve the collection effect, the two ends of the filter cotton are bent upwards to extend, the shape of the filter cotton is consistent with that of the carbon powder collection box, and carbon powder which moves laterally due to air pressure and vibration is collected.

In order to improve the stability of the collecting chamber, the side wall of the collecting ring cover is provided with a supporting base, and the supporting base is supported at the bottom of the carbon powder collecting box.

Further, the screw extension portion is arranged on the carbon powder collecting box in a penetrating mode, the carbon powder collecting box is clamped and fixed through the fixing nut, and a rubber gasket is arranged between the fixing nut and the carbon powder collecting box.

The utility model has the following beneficial effects:

1. simple structure, low cost, good carbon powder pollution prevention effect: carbon powder generated by friction between the carbon brush and the contact surface of the collecting ring falls on the upper surface of the multi-layer filter cotton after free falling body movement, the multi-layer filter cotton can limit the movement range of the carbon powder, air pressure can be reduced to enter the collecting chamber, one part of the carbon powder is attached to the filter cotton, the other part of the carbon powder falls into the carbon powder collecting box through holes under the combined action of gravity and vibration, the carbon powder collecting box has the function of preventing upward movement, and the tiny hole structure on the filter cotton can also eliminate part of friction noise. After the installation of the utility model is completed, the utility model can be put into use without additionally installing matched dust collection equipment and control circuits and pipelines. The better carbon powder pollution prevention effect can be obtained only by cleaning the carbon powder collection box and carbon powder stored in the filter cotton during routine shutdown maintenance of the unit and checking the loosening condition of the connecting structure.

Drawings

Fig. 1 is a schematic diagram of an embodiment of a carbon dust pollution prevention device of a vertical hydroelectric generating set according to the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

1. reference numerals in the drawings of the specification include: carbon brush 1, collecting ring 2, main shaft 3, fixing screw 4, collecting ring cover 5, screw extension 6, carbon powder collecting box 7, filter cotton 8, collecting chamber 9, carbon powder storage grid plate 10, storage grid 11, set screw 12, support base 13, fixing nut 14, rubber gasket 15.

Example 1

As shown in fig. 1, a carbon dust pollution prevention device of a vertical hydroelectric generating set comprises a fixing screw 4, wherein the fixing screw 4 is fixedly connected to the top of a collecting ring cover 5, a carbon brush 1, a collecting ring 2 and a main shaft 3 are arranged in the collecting ring cover 5, the collecting ring 2 is arranged on the main shaft 3 to rotate along with the main shaft 3, the carbon brush 1 is transversely fixed at the lower end part of the fixing screw 4, the carbon brush 1 is continuously electrified in contact with the collecting ring 2, a screw extension part 6 is arranged at the lower end part of the fixing screw 4, the screw extension part 6 is connected with a carbon dust collecting box 7, the carbon dust collecting box 7 is positioned below a contact point between the carbon brush 1 and the collecting ring 2, a plurality of layers of filter cotton 8 are arranged on the collecting box 7, the filter cotton 8 is in a hole structure, and a collecting chamber 9 is arranged between the filter cotton 8 and the carbon dust collecting box 7.

The middle part of box 7 is collected to screw rod extension 6 connection carbon dust, the left end and the right-hand member of box 7 are upwards buckled and are extended, the left end of box 7 is kept away from the one end of carbon brush 1 is collected to the carbon dust, the left end of box 7 is higher than the right-hand member is collected to the carbon dust, the right-hand member of box 7 is located collector ring 2 below, the both ends of filter pulp 8 are upwards buckled and are extended, the shape of filter pulp 8 with the box 7 laminating is unanimous is collected to the carbon dust that the friction produced directly drops to in the box 7 is collected to the carbon dust, the carbon dust that side direction moved because of atmospheric pressure and vibration reason is collected to the both ends extension of filter pulp 8.

The bottom in the carbon powder collecting box 7 and the part of upwards bending and extending are all provided with carbon powder storage grid plates 10, the carbon powder storage grid plates 10 divide the collecting chamber 9 into a plurality of storage grids 11, the filter cotton 8 is fixed on the carbon powder storage grid plates 10, and the filter cotton 8 is fixedly connected on the carbon powder storage grid plates 10 through set screws 12.

The side wall of the collecting ring cover 5 is provided with a supporting base 13, the supporting base 13 is horizontally arranged and keeps consistent with the bottom of the carbon powder collecting box 7, and the supporting base 13 is supported at the bottom of the carbon powder collecting box 7.

The screw extension part 6 is arranged on the carbon powder collection box 7 in a penetrating way, the carbon powder collection box 7 is clamped and fixed through the fixing nut 14, and a rubber gasket 15 is arranged between the fixing nut 14 and the carbon powder collection box 7.

The collecting ring 2 rotates along with the main shaft 3, the carbon brush 1 supplies power for the collecting ring 2, the filter cotton 8 is close to the carbon brush 1, carbon powder generated by friction between the contact surface of the carbon brush 1 and the collecting ring 2 falls on the upper surface of the filter cotton 8 in multiple layers after free falling body movement, the hole structure on the filter cotton 8 in multiple layers can limit the movement range of the carbon powder, the trend of the carbon powder moving along with air pressure is reduced, one part of the carbon powder is attached to the filter cotton 8, and the other part of the carbon powder falls into the carbon powder collecting box 7 through the holes under the combined action of gravity and vibration.

The foregoing is merely an embodiment of the present utility model, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application date or before the priority date, can know all the prior art in the field, and has the capability of applying the conventional experimental means before the date, and a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present utility model, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present utility model. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. The utility model provides a vertical hydroelectric set prevents carbon dust pollution device, includes the fixing screw, fixing screw fixed connection is at the top of collecting ring cover, the tip is used for connecting the carbon brush under the fixing screw, its characterized in that, the tip is equipped with the screw rod extension under the fixing screw, the cartridge is collected to the screw rod extension, be equipped with the multilayer filter pulp on the cartridge is collected to the carbon dust, the filter pulp is the hole structure, be the collecting chamber between filter pulp and the cartridge is collected to the carbon dust.

2. The carbon dust pollution prevention device of a vertical hydroelectric generating set according to claim 1, wherein: the carbon powder collecting box is internally provided with a plurality of carbon powder storage grid plates, the carbon powder storage grid plates divide the collecting chamber into a plurality of storage grids, and the filter cotton is fixed on the carbon powder storage grid plates.

3. The carbon dust pollution prevention device of a vertical hydroelectric generating set according to claim 2, wherein: the screw extension portion is connected with the middle part of the carbon powder collection box, the left end and the right end of the carbon powder collection box are bent upwards to extend, the left end of the carbon powder collection box is far away from one end of the carbon brush, the left end of the carbon powder collection box is higher than the right end, and the right end of the carbon powder collection box is located below the collecting ring.

4. The carbon dust pollution prevention device of a vertical hydroelectric generating set according to claim 3, wherein: the two ends of the filter cotton are bent upwards to extend, and the shape of the filter cotton is consistent with that of the carbon powder collecting box.

5. The carbon dust pollution prevention device of a vertical hydroelectric generating set according to any of claims 1 to 4, wherein: the side wall of the collecting ring cover is provided with a supporting base, and the supporting base is supported at the bottom of the carbon powder collecting box.

6. The carbon dust pollution prevention device of a vertical hydroelectric generating set according to claim 5, wherein: the screw extension part is arranged on the carbon powder collecting box in a penetrating way, the carbon powder collecting box is clamped and fixed through the fixing nut, and a rubber gasket is arranged between the fixing nut and the carbon powder collecting box.