Above-liquid level wax scraping device for storage tank

Abstract

The invention discloses an above-liquid level wax scraping device for storage tank. The wax scraping device comprises a scraping knife, an installation frame, a supporting arm, a force application mechanism and an installation adapter, wherein the scraping knife is connected to the installation frame, the upper end of the supporting arm is connected with the installation frame, the lower end of the supporting arm is connected with the force application mechanism, and the force application mechanism is connected to a floating disc through the installation adapter; and the shape of the scraping knife is matched with the arc shape of the inner wall of the storage tank; the installation frame is of a special-shaped frame body structure, a vertical frame with a bolt hole is arranged at the middle part of the installation frame, a bolt penetrates through the bolt hole and is fixed through a nut, then a bolt rod of the bolt forms a suspension end backwards, the bottom end of the vertical frame is bent backwards and downwards, and a bending point forms a guide supporting point; and the upper end of the supporting arm is bent backwards to form a compensation arm, a long adjusting hole in the vertical direction is formed in the compensation arm, the suspension end of the bolt rod penetrates into the long adjusting hole to be movably connected, the force application mechanism is of an elastic piece type structure, one end of the force application mechanism is fixedly screwed with the lower end of the supporting arm, and the other end is fixedly screwed with the installation adapter. The wax scraping device is long in service life, wide in compensation range, simple and reliable to install and high in safety, and a good scraping effect is achieved through small pressure.

Description

technical field [0001] The invention relates to a wax scraper device above the liquid level of a storage tank, belonging to the technical field of wax scrapers for crude oil storage tanks or heavy oil storage tanks. Background technique [0002] In existing crude oil storage tanks or heavy oil storage tanks, in order to prevent the condensation of the wax on the tank wall, a wax scraping device under the tank is installed on the storage tanks. There are various types of wax scraping devices under the tank. According to the principle of the force-assisted mechanism, there are mainly hammer type wax scrapers, spring type wax scrapers and shrapnel type wax scrapers. Many, gradually withdrew from the market, and now the mainstream product is a heavy hammer wax scraper. With the promotion of the new shrapnel type seal in China, a new type of shrapnel wax scraper has appeared. Among the current various wax scraper devices, the installation positions are all under the seal, some ...

AI Technical Summary

Problems solved by technology

[0012] The invention provides a wax scraping device above the liquid level of a storage tank, the purpose of which is to solve the technical problem of scraping the residual wax above the liquid level of the storage tank without causing safety hazards to the operation of the floating plate

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