Anti-corrosion device for seawater circulating pump

A technology of anti-corrosion device and circulating pump, which is applied to the parts, pumps, pump components and other directions of pumping devices for elastic fluids, can solve problems such as difficulty, corrosion and disassembly, and achieve extended service life, reliable connection, and avoidance of corrosion and corrosion. Difficulty dismantling effects

Pending Publication Date: 2021-08-06

JIANGSU NUCLEAR POWER CORP

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AI-Extracted Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a seawater circulation pump anticorrosion device, which has a simple structure and is easy to install. It adopts the measure of adding a sacrificial anode ring to effectively solve the corrosion problem of the pump shaft and i...

Method used

Carry out spot welding spot welding spot 8 at protective cover cap 11 and...

Abstract

The invention belongs to the technical field of mechanical design, and particularly relates to an anti-corrosion device for a seawater circulating pump. The device comprises an impeller, a sacrificial anode ring, a stud A, a nut A, a protective cover cap and a pump shaft; a circular step is arranged on the upper surface of the impeller, the annular sacrificial anode is arranged on the step in a sleeving mode, the pump shaft is connected with the impeller through the stud A and the nut A, and the protective cover cap is installed on the top of the stud A. The device is simple in structure and convenient to install, the corrosion problem of the pump shaft and the impeller of the seawater circulating pump is effectively solved by adopting the measure of additionally installing the sacrificial anode ring, the exposed part of a fastening bolt is coated with anti-corrosion grease, the protective cover cap is additionally installed and sealed, the bolt and seawater are prevented from being in contact, and the problems that the fastening bolt of the impeller is corroded and difficult to disassemble and the like are effectively solved.

Application Domain

Pump componentsPumps +2

Technology Topic

PhysicsWater circulation +9

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Examples

Experimental program(1)

Example Embodiment

[0027] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.

[0028] In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right" "vertical", "horizontal", "inside", "outside", etc. The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which is merely described in order to facilitate the description of the present invention and simplified description, rather than indicating or implying that the device or component must have a particular orientation. And operation, so it is not understood to limit the invention. Moreover, the term "first", "second", "third" is only used to describe purposes, and cannot be understood as an indication or implies relative importance.

[0029] In the description of the present invention, it is to be described in that, unless otherwise expressly specified and defined, the term "mount", "connected", "connection" should be broadly understood, for example, may be fixed connection, or detachable Connect, or integrate; it can be mechanical connection, or electrical connection; may be directly connected, or indirectly connected by an intermediate medium, which can be in the interior of the two elements. The specific meaning of the above terms in the present invention will be appreciated to those skilled in the art.

[0030] like figure 1 As shown, a seawater circulating pump anti-corrosion device provided by the present invention includes an impeller 1; a sacrificial anode ring 2, a double-head bolt B3, a nut B4, a ceramic coating 5, a double-head bolt A6, a nut A7, a spot welding 8, sealing Circle 9, preservative oil 10, protective cover 11, pump shaft 12.

[0031] The upper surface of the impeller 1 has a circular steps, such as figure 2 and image 3 As shown, the annular sacrificial anode is connected to the step, and several via holes are uniformly opened on the sacrificial anode 2, and the top of the through hole is opened, and the impeller 1 opens the opening and opening the hole. Processing the threaded holes of the double bolt B3;

[0032] The anti-corrosion paint is painted on the lower end of the sacrificial anode ring 2, and one end of the double head bolt B3 is connected to the impeller 1, and the other end of the double-head bolt B3 is connected to the fastening nut B4, the fastening nut B4 is located in the countersunk hole In the middle, the fastening nut B4 connects the sacrificial anode ring 2 to the impeller 1 by the double head bolt B3.

[0033] Injecting ceramic coating 5 in the sacrificial anode ring 2, the ceramic coating 5 is injected to the coating curing;

[0034] Clean the pump shaft 12, impeller 1, double head bolt A6, nut A7;

[0035] The pump shaft 12 is connected to the impeller 1, and the nut A7 corresponds to the double bolt A6, and symmetrically fastened according to the required torque;

[0036] The anti-corrosion grease 10 is applied to the upper end of the screw upper end of the double bolt bolt A6, and the protective cover 11 is mounted on the top of the double bolt A6, and the protective cover 11 and the nut A7 are provided with a sealing ring 9, and evenly apply it outside the seal ring 9. Vaseline; then install it into the sealing groove of the protective cover 11;

[0037] The upper portion of the protective cover 11 is provided with a wrench to remove the wrench to rotate the protective cover 11 to the double bolt A6 and tighten, so that the sealing ring 9 is closely fitted with the upper surface of the nut A7, and prevents seawater from entering the protective cover. The purpose of 11 in 11.

[0038] Point soldering point 8 in the protective cover 11 and the nut A7 seam position 8 to prevent the protective cover 11 from loosen.

[0039] Bonded below figure 1 To illustrate the working principle of a seawater circulating pump anti-corrosion device of the present invention: the seal ring 8 can effectively prevent the seawater from entering the protective cover 10, avoiding the seawater to brush the antiseptic oil 9, causing double bolts A and the nut a corrosion It causes difficulties in disassembly of double bolts A and nut a. The sacrificial anode ring 2 is mounted on the back surface of the impeller 1, and the immersible angle 1 and the pump shaft 11 of the seawater circulation pump are etched by consuming the mounted sacrificial anode ring 2, and the ceramics in the anode ring 2 is sacrificed. The coating 5 can effectively prevent the seawater corrosion sacrificed the fixing bolt B3 of the anode ring 2 to prevent the nut B4 from loose, ensuring the reliable connection of the sacrificial anode ring 2 and the impeller 1.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

Simple structure
Easy to install

Anti-corrosion device for seawater circulating pump

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

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Description & Claims & Application Information

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