Built-in balance container

Abstract

The invention discloses a built-in balance container. The built-in balance container comprises a steam connecting pipe horizontally extending to the upper portion of a boiler drum and a water connecting pipe horizontally extending to the lower portion of the boiler drum, the position, positioned on the outer side of the boiler drum, of the water connecting pipe is connected with a negative-pressure guide pipe, the built-in balance container further comprises a reference cup arranged in the boiler drum, the bottom of the reference cup is provided with a reference pipe, the bottom end of the reference pipe is bent and horizontally extends to the outer side of the water connecting pipe from the interior of the water connecting pipe in a sealed mode, the part, extending to the outer side of the water connecting pipe, of the reference pipe is connected with a positive-pressure guide pipe, the reference cup is located under a steam connecting pipe opening extending into the boiler drum, thepart, located on the outer side of the boiler drum, of the water connecting pipe is connected with a condensing cylinder, a water injection plug is mounted at the top of the condensing cylinder, the bottom of the condensing cylinder is connected with a return pipe, the return pipe communicates with the part, extending to the outer side of the water connecting pipe, of the reference pipe, and the inner diameter of the return pipe is larger than the inner diameter of the reference pipe. After the built-in balance container is applied, even if the flash evaporation phenomenon occurs near the reference cup, the real water level in the boiler drum can still be measured relatively accurately.

Description

Technical field [0001] The invention relates to a built-in balance container. Background technique [0002] The built-in balance vessel in the prior art is used to measure the water level of the boiler drum. Its structure mainly includes a steam connecting pipe extending horizontally to the upper part of the boiler drum and a water connecting pipe extending horizontally to the lower part of the boiler drum. The water connecting pipe on the outside of the bag is connected with a negative pressure pipe, and it also includes a reference cup arranged in the boiler steam drum. The bottom of the reference cup has a reference pipe, and the bottom end of the reference pipe is bent and extended horizontally and sealed by the water connecting pipe. To the outside of the water connecting pipe, the reference pipe extending to the outside of the water connecting pipe is connected with a positive pressure pipe. The reference cup is located directly below the nozzle of the steam connecting pipe...

AI Technical Summary

Problems solved by technology

If the "flash" phenomenon occurs near the reference cup, the water in the reference cup will suddenly increase in vaporization, and the water level in the reference cup will drop sharply accordingly, resulting in a sudden drop in the pressure in the positive pressure conduit, which cannot be accurately measured. Measure the real water level in the boiler drum, which has hidden dangers in production safety

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