Method for removing sediments in heavy oil pipeline of spare heat medium boiler

Abstract

A method for removing sediments in a heavy oil pipeline of a spare heat medium boiler includes the steps of (1) closing an inlet and outlet valve of a heavy oil booster pump, and moving away the heavy oil booster pump; (2) connecting a diesel circulation pump and a diesel cycle collecting tank to a position to which the heavy oil booster pump was connected before so as to form a cycle; (3) opening an inlet valve from the diesel cycle collecting tank to the diesel circulation pump, a reflux valve of a diesel collecting tank, and an inlet and an outlet valves of the original heavy oil booster pump; and (4) starting the diesel circulation pump to enable diesel to reciprocally cycle through the diesel circulation pump, a heavy oil heater, a pipeline and the diesel collection tank for 2-3 hours. The diesel is used for realizing cycling of a small closed system formed by a heavy oil system of a single spare fuel heat medium boiler, and such impurities as oil sludge existing in the pipeline of the spare fuel heat medium boiler and the heater are removed, and thus, unimpeded cycle of the heavy oil pipeline in the spare fuel heat medium boiler is guaranteed, and the spare fuel heat medium boiler can be successfully put into use at any time.

Description

technical field [0001] The invention relates to the field of heat medium boilers, in particular to a method for removing sediment in heavy oil pipelines of spare heat medium boilers. Background technique [0002] The function of the heat medium boiler is mainly to heat the heat medium carrier to provide the required heat for production. In order to meet energy-saving requirements and production needs, it is usually necessary to set up a spare fuel-fired heat medium boiler. The heavy oil system of the fuel-fired heat medium boiler is divided into two cycles. The first stage cycle is composed of heavy oil intermediate tank, heavy oil circulation pump, metering small tank A and pipeline, and the power is increased by the heavy oil circulation pump; the second stage cycle is composed of metering small tank B , a heavy oil booster pump, a heavy oil heater, and a burner, and the power is increased by the heavy oil booster pump. The first-stage cycle is responsible for providing ...

AI Technical Summary

Problems solved by technology

The manual dredging method needs to disassemble and disassemble the pipeline and the heater, and then dredge the foot to remove the sediment. This method takes a long time and requires a lot of manpower, and the effect is not necessarily good

Adding heavy oil cleaning agent and then circulating to remove sediment is effective, but due to the high cost of heavy oil cleaning agent, this method of cleaning increases production costs

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