Fuel gas pressure regulating box

Abstract

The invention relates to the field of pressure regulating boxes, in particular to a fuel gas pressure regulating box. The fuel gas pressure regulating box comprises a box body. An inlet manifold is arranged in the box body, the upper portion of the inlet manifold is connected with an inlet ball valve, the upper portion of the inlet ball valve is connected with a filter, an outlet of the filter is connected with a fuel gas pressure regulator through a pipe, an outlet of the gas pressure regulator is connected with an outlet ball valve through a pipe, the other end of the outlet ball valve is connected with an outlet manifold, one side of the outlet manifold is provided with a pressure measuring pipe, the pressure measuring pipe is connected with a needle valve, the needle valve is connected with a pressure gauge through a pipe, and a buffer pipe with the buffering function is arranged in the pipe between the needle valve and the pressure gauge. According to the fuel gas pressure regulating box, the pressure gauge is not prone to being damaged, and displays more stable numerical values, detection on a blow-off valve is short in time and high in efficiency, and online monitoring during operation can be implemented.

Description

Technical field [0001] The present invention relates to the field of pressure regulating boxes, and more particularly to a gas pressure regulator. Background technique [0002] Gas pressure regulating box is an important part of the gas-in-gas transmission system, which has an advantage of compact structure, small area and convenient installation. The prior art gas pressure regulating box, due to changes in import and export pressure, pressure regulator surge, airflow impact, etc., it is easy to cause overtravel damage, short service life, short display, etc. Further, the internal dispersion valve inside is periodically detected during use, and it is necessary to increase the pressure of the pipe or the pressure of the pipe or the stress of the tube or the tube, resulting in the long operation time, low efficiency, and low efficiency. And unable to achieve online monitoring. Inventive content [0003] The technical problem to be solved by the present invention is for the shortco...

AI Technical Summary

Problems solved by technology

Due to the change of the inlet and outlet pressure, the surge of the regulator, the impact of the air flow and other factors during the use of the gas pressure regulating box of the prior art, it is very easy to cause over-range damage to the pressure gauge, short service life, inaccurate display, etc. In addition, the set pressure of the internal relief valve needs to be regularly tested during use. During the test, the pressure of the pipeline or manifold needs to be raised to the set pressure of the relief valve as a whole, resulting in long operation time and low efficiency. And it is impossible to realize online monitoring at runtime

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