CN215560689U - Grounding carbon brush support of cathode protection device of circulating water pump - Google Patents
Grounding carbon brush support of cathode protection device of circulating water pump Download PDFInfo
- Publication number
- CN215560689U CN215560689U CN202121942103.1U CN202121942103U CN215560689U CN 215560689 U CN215560689 U CN 215560689U CN 202121942103 U CN202121942103 U CN 202121942103U CN 215560689 U CN215560689 U CN 215560689U
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- carbon brush
- protection device
- water pump
- clamping plate
- cathode protection
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Abstract
The cathode protection device of the circulating water pump is grounded with the carbon brush bracket. Due to the reasons of unreasonable structural design of the grounding carbon brush bracket of the cathode protection device, environmental corrosion and the like, the grounding carbon brush is in poor contact with a large shaft of the water pump, and a grounding loop is broken frequently, so that the cathode protection device fails. The utility model comprises the following components: the novel cross-shaped frame comprises an upper clamping plate (4), a lower clamping plate (6), a supporting plate (2), a supporting screw rod (3) and a cross-shaped frame (1), wherein two studs (9) are welded on the bottom surface of the cross-shaped frame, the studs penetrate through sliding holes (10) of the supporting plate and are in threaded connection with nuts, the supporting plate is fixed with the upper clamping plate through the supporting screw rod, two adjusting screw rods (5) are in threaded connection with the upper clamping plate, and the bottoms of the adjusting screw rods penetrate through notches (8) of the lower clamping plate and are in threaded connection with the nuts. The utility model is used for the grounding carbon brush support of the cathode protection device of the circulating water pump.
Description
Technical Field
The utility model relates to a grounding carbon brush support of a cathode protection device of a circulating water pump.
Background
In coastal power plants, circulating water pumps are often equipped with cathodic protection devices. The circulating water pump is soaked in seawater for a long time, the inner wall, the shaft, the impeller and the outer wall of the water pump are corroded by the seawater, and the impressed current cathode protection system can prevent the corrosion of the inner wall, the shaft and the impeller of the water pump in the seawater and prolong the service life. The existing cathodic protection device electrically connects a shaft and an impeller with a pump body into a whole by contacting a carbon brush with a rotating large shaft. However, due to the reasons of unreasonable structural design of the grounding carbon brush bracket of the cathode protection device, environmental corrosion and the like, the grounding carbon brush is in poor contact with the large shaft of the water pump, and the grounding loop is frequently broken, so that the cathode protection device fails. In the past, the circulating water pump can be out of protection.
Disclosure of Invention
The utility model aims to provide a grounding carbon brush support of a cathode protection device of a circulating water pump.
The above purpose is realized by the following technical scheme:
the utility model provides a circulating water pump cathodic protection device ground connection carbon brush support, its constitution includes punch holder, lower plate, extension board, supporting screw and cross frame, the bottom surface welding of cross frame have two double-screw bolts, the double-screw bolt pass the slide opening and the nut threaded connection of extension board, the extension board with the punch holder pass through supporting screw and fix, the punch holder on threaded connection have two adjusting screw, adjusting screw's bottom pass the opening and the nut threaded connection of lower plate.
The cathode protection device of the circulating water pump is connected with the carbon brush support, and a carbon brush is fixed in the cross frame.
Has the advantages that:
1. according to the utility model, by changing the fixing mode of the cathode protection grounding carbon brush bracket, the good contact between the carbon brush and the large shaft is ensured, the problem of open circuit of a grounding loop is solved, the cathode protection device is normally operated, the circulating water pump is prevented from being corroded in seawater, the service life is prolonged, and the stable operation of the unit is guaranteed.
2. According to the utility model, the upper clamping plate and the lower clamping plate are fixed on the base on the pump body, and the middle of the upper clamping plate and the lower clamping plate is padded by the fluorine rubber with the thickness of 4mm, so that the phenomena of loose and loose matching of original screws and screw holes are eliminated, the height of the carbon brush can be adjusted along with the height of the slip ring, the operation time of maintenance personnel is reduced, and the overhauling risk near the rotating main shaft is greatly reduced.
Description of the drawings:
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a bottom view of the present invention;
FIG. 4 is a schematic structural view of the present invention in use;
in the figure: 1. a cross frame; 2. a support plate; 3. a support screw; 4. an upper splint; 5. adjusting the screw rod; 6. a lower splint; 7. a carbon brush; 8. opening the gap; 9. a stud; 10. a slide hole; 11. a slip ring; 12. a base.
The specific implementation mode is as follows:
example 1:
the utility model provides a circulating water pump cathodic protection device ground connection carbon brush support, its constitution includes punch holder 4, lower plate 6 extension board 2, supporting screw 3 and cross frame 1, the bottom surface welding of cross frame have two double-screw bolts 9, the double-screw bolt pass the slide opening 10 and the nut threaded connection of extension board, the extension board with the punch holder pass through supporting screw and fix, the punch holder on threaded connection have two adjusting screw 5, adjusting screw's bottom pass the opening 8 and the nut threaded connection of lower plate.
Example 2:
according to the grounding carbon brush support of the cathode protection device of the circulating water pump in the embodiment 1, the carbon brush 7 is fixed in the cross frame.
Example 3:
according to the grounding carbon brush support of the cathode protection device of the circulating water pump in the embodiment 1 or 2, the lower surface of the upper clamping plate and the upper surface of the lower clamping plate are both adhered with fluorine rubber.
When the device is installed, the device is clamped on the base 12 through the upper clamping plate and the lower clamping plate, then the supporting plate is rotated to enable the height of the supporting plate to be adjusted to the height of the sliding ring, then the nut on the stud is unscrewed, the cross frame slides to enable the carbon brush to be in contact with the sliding ring 11, the height of the support can be adjusted up and down, the angle can be adjusted left and right, good contact between the carbon brush and the large-shaft sliding ring is guaranteed, the phenomenon that the carbon brush is ignited is not prone to occurring, the universality is strong, the height can be adjusted, and the device can be used on motors with the sliding ring and the base at different intervals.
Claims (3)
1. The utility model provides a circulating water pump cathodic protection device ground connection carbon brush support, characterized by: the support plate and the upper clamping plate are fixed through the supporting screw rod, the upper clamping plate is in threaded connection with two adjusting screw rods, and the bottom of each adjusting screw rod penetrates through a notch of the lower clamping plate and is in threaded connection with a nut.
2. The grounding carbon brush support of the cathode protection device of the circulating water pump as claimed in claim 1, wherein: and a carbon brush is fixed in the cross frame.
3. The grounding carbon brush support of the cathode protection device of the circulating water pump as claimed in claim 2, wherein: the lower surface of the upper clamping plate and the upper surface of the lower clamping plate are both bonded with fluorine rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121942103.1U CN215560689U (en) | 2021-08-18 | 2021-08-18 | Grounding carbon brush support of cathode protection device of circulating water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121942103.1U CN215560689U (en) | 2021-08-18 | 2021-08-18 | Grounding carbon brush support of cathode protection device of circulating water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215560689U true CN215560689U (en) | 2022-01-18 |
Family
ID=79836935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121942103.1U Active CN215560689U (en) | 2021-08-18 | 2021-08-18 | Grounding carbon brush support of cathode protection device of circulating water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215560689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115161645A (en) * | 2022-06-16 | 2022-10-11 | 华能(大连)热电有限责任公司 | Cathode protection device of centrifugal seawater booster pump |
-
2021
- 2021-08-18 CN CN202121942103.1U patent/CN215560689U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115161645A (en) * | 2022-06-16 | 2022-10-11 | 华能(大连)热电有限责任公司 | Cathode protection device of centrifugal seawater booster pump |
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