CN201269401Y

CN201269401Y - Filter of draining valve

Info

Publication number: CN201269401Y
Application number: CNU2008200726390U
Authority: CN
Inventors: 吕文广; 郑景宜
Original assignee: JILIN CITY FRIEND TECHNOLOGY Co Ltd
Current assignee: JILIN CITY FRIEND TECHNOLOGY Co Ltd
Priority date: 2008-10-24
Filing date: 2008-10-24
Publication date: 2009-07-08
Anticipated expiration: 2018-10-24

Abstract

The utility model discloses a drain valve filter device, which comprises a filter net in a pipeline and a sewage storing room communicated with the pipeline; the sewage storing room is provided with a sewer valve, the pipeline is horizontally arranged, the sewage storing room is under the pipeline, the lower end of the filter net is arranged on the edge of the outlet direction at the inlet of the sewage storing room, the upper end is inclined to the input direction; the sewage storing room is cone-shaped; the choking of the drain valve is avoided, the service life is extended; and the filter device can effectively filter and facilitate the removal of impurities.

Description

The drain valve filtrating equipment

Technical field

The utility model relates to the drain valve of water vapor heating system, exactly is the drain valve filtrating equipment.

Background technique

Drain valve also is steam trap, STEAM TRAP etc.Its effect is to drain in steam line and the equipment water of condensation that constantly produces automatically, and air and other can not coagulating property gases, stop the effusion of steam again simultaneously, are to guarantee the temperature required and heats of various heating process equipment, and a kind of energy-conserving product that can proper functioning.

Drain valve mainly contains three classes: (1) mechanical-type drain valve, mechanically to work, and principle is according to the density difference between steam and the water of condensation.Utilize ball float or floating drum to operate the switch of drain valve, with saturation temperature discharging condensed water.Kind comprises float-ball type and falls hanging bucket type; (2) heat static force type drain valve utilizes saturated vapour to operate the heat responsive element of drain valve and the switch of control valve than condensed water and the high principle of temperature that contains fixed gas steam.This type of drain valve must be cooled to below the saturation temperature before the condensed water discharging.Kind comprises pressure balance type, double-metal sheet type and liquid or solid expansion.(3) heat power type drain valve produce secondary steam when passing through drain valve according to condensed water, and the secondary steam of high speed operation can produce the switch that the simple principle of a low pressure area is come control valve.

It is reported that annual nearly 3,000,000 drain valves of China are using, to such an extent as to but can not normally use inefficacy up to 70%～75%.Wherein the pollutant obstruction is to be directed at the main cause that drain valve lost efficacy.

Because steam line and steam heating body are for a long time under the condition of high temperature, separate impurity such as iron rust, be accumulated on the drain valve, easily result in blockage, therefore cause waste of steam surprising, both influenced energy consumption and also directly influenced the heating system stable heating, and can cause potential safety hazard if moment is stopped up processing in time.Though the drain valve that has is equipped with filter screen, pollutant is trapped in drain valve inside, can't clear up.

Summary of the invention

The purpose of this utility model is to avoid drain valve to stop up, and prolongs its working life, can effectively filter the also drain valve filtrating equipment of easy cleaning impurity and provide a kind of.

The utility model is achieved through the following technical solutions:

It comprises the drain valve filtrating equipment: pipeline inner filtration net, and the dirt storage room that communicates with pipeline, dirt storage room is provided with blowdown valve, it is characterized in that pipe level is placed, dirt storage room is below pipeline, the lower end of filter screen places the edge of inlet of dirt storage room Way out, the upper end to the importer to inclination;

Filter screen and pipeline center's axle are 30 °-45 °;

Described dirt storage room is taper;

Blowdown valve is for covering valve.

Filter screen is metal material or other heat-resisting material.

During use, conduit entrance is connected with the heating plant of steam, outlet is connected with drain valve, have condensed water and steam, be tilted dirt and iron rust that filter screen intercepts, under the scrubbing of steam and water, come off in dirt storage room, regularly open blowdown valve, cleaning dirt and iron rust are changed filter screen in case of necessity.

Description of drawings

Fig. 1 is the utility model structural drawing

Fig. 2 is that the utility model filter screen is connected partial enlarged drawing with pipeline

Fig. 3 is the utility model filter screen structure figure

Embodiment

It comprises the utility model drain valve filtrating equipment: pipeline inner filtration net 2, the dirt storage room 5 that communicates with pipeline, dirt storage room 5 is provided with blowdown valve 6, and pipe level is placed, dirt storage room 5 is below pipeline, one end of filter screen 2 places inlet of dirt storage room to export the edge of 3 directions, tilts to import 1 direction, is 30 ° with the pipeline center axle, the screen frame 21 of filter screen 2 is fixed on the reticulum 7, described dirt storage room 5 is taper, and blowdown valve 6 is for to cover valve, and filter screen 2 is a metal material.

During use, conduit entrance 1 is connected with the heating plant of steam, outlet 3 is connected with drain valve 4, have condensed water and steam, dirt and iron rust that the filter screen 2 that is tilted intercepts are under the scrubbing of steam and water, come off in dirt storage room 5, regularly open blowdown valve 6, cleaning dirt and iron rust are changed filter screen 2 in case of necessity.

Claims

1, a kind of drain valve filtrating equipment, it includes pipeline inner filtration net (2), the dirt storage room that communicates with pipeline (5), dirt storage room (5) is provided with blowdown valve (6), it is characterized in that: pipe level is placed, dirt storage room (5) is below pipeline, and the lower end of filter screen (2) places the edge of inlet of dirt storage room (5) outlet (3) direction, and the upper end tilts to import (1) direction.

2, drain valve filtrating equipment according to claim 1 is characterized in that: described filter screen (2) is 30 ° of 45s with pipeline center's axle.

3, drain valve filtrating equipment according to claim 1 and 2 is characterized in that: described dirt storage room (5) is taper.

4, drain valve filtrating equipment according to claim 1 and 2 is characterized in that: described blowdown valve (6) is for covering valve.

5, drain valve filtrating equipment according to claim 3 is characterized in that: described blowdown valve (6) is for covering valve.