Self-closing fixed pivot lever bucket type high pressure steam drainage valve

Abstract

The invention relates to an automatically-closing fixed-support lever bucket-type high pressure steam trap valve, which is characterized in that a valve body (1) is fastened with a valve cover (20) through equaling stud bolts and nuts, flanges (10) are horizontally welded on the inlet end and the outlet end of the valve cover, respectively. The inner cavity of the valve body is provided with a bucket (3), and an L-shaped inlet tube (2), the upper end of the valve body is connected with the valve cover through threads, and communicates with a water inlet, and the lower end of the valve body extends into the lower cavity of the bucket. A valve seat (15) is connected on the lower end face of the valve cover through threads and communicates with a water outlet, a valve plug (24) is arranged inside a support (23), the bracket is fixedly connected on a fixed-support lever (8) through cotter pins, the fixed-support lever is connected on a bracket (13) through cotter pins, the bracket is connected on the lower end face of the valve cover through hexagon head bolts, and the bucket is fixed through a davit (4) and a locking nut (5), and connected on the fixed-support lever through a pin roll (6) and a cotter pin (7). The automatically-closing fixed-support lever bucket-type high pressure steam trap valve has the advantages of small steam leakage loss, rate of load steam loss at less than 2%, large working pressure range, no influence on drainage after the pressure is changed, and high rate of back pressure, and can drain condensed water in time, and be favorable for recycling the condensed water.

Description

technical field [0001] The present invention relates to a bucket-type steam trap, more specifically to an automatic shut-off valve that can meet the requirements of a high-pressure steam steam trap to remove condensed water and non-condensable gas and prevent steam leakage, and is beneficial to the recovery and utilization of condensed water. Fixed Pivot Lever Bucket High Pressure Steam Traps. Background technique [0002] At present, there are two kinds of known fixed fulcrum lever bucket type steam traps, one is the fixed fulcrum lever bucket type, and the other is the fixed fulcrum lever and piston combined type. The existing fixed fulcrum lever bucket type steam trap cannot operate normally when the maximum working pressure is greater than 4.5MPa·G, and the existing fixed fulcrum lever differential pressure piston bucket type steam trap cannot operate normally when the working pressure difference is less than 0.05MPa·G normal action. Contents of the invention [0003...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome that the existing fixed fulcrum lever bucket type steam trap cannot operate normally when the maximum working pressure is greater than 4.5 MPa G, and the existing fixed fulcrum lever differential pressure piston bucket type steam trap cannot Due to the defect that the working pressure difference is less than 0.05MPa·G, it cannot operate normally. It provides a single valve seat cut-off type, automatic centering, and automatic valve closing with a large working pressure range, good stability and reliability. steam trap

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