CN201083506Y

CN201083506Y - Gas pipeline metered orifice plate clearing device

Info

Publication number: CN201083506Y
Application number: CNU2007201441280U
Authority: CN
Inventors: 赵国梁; 吴贤甫; 谭培龙
Original assignee: Shanghai Meishan Iron and Steel Co Ltd
Current assignee: Shanghai Meishan Iron and Steel Co Ltd
Priority date: 2007-07-31
Filing date: 2007-07-31
Publication date: 2008-07-09
Anticipated expiration: 2017-07-31

Abstract

The utility model relates to a block cleaning device for a pipeline gauged orifice plate, in particular to the block cleaning device for a coke-oven gas pipeline gauged orifice plate. The utility model mainly aims to solve the technical problems that the block cleaning of the prior gas pipeline gauged orifice plate has large gas consumption and requires offline maintenance. The technical proposal of the utility model is as follows: the block cleaning device of the gas pipeline gauged orifice plate comprises a gas main, wherein a gas turn-over panel and a gauged orifice plate are arranged inside the gas main, a water seal is arranged on the gas main, a diffuse tube and a valve are arranged on the gas main positioned above the water seal. The utility model is characterized in that: a steam dome is arranged under the gas main gauged orifice plate, and is provided with a plurality of steam pipes which are inserted into gas pipelines, tail ends of the steam pipes are evenly aligned to the gauged orifice plate at interval; the steam dome is provided with an electric turn-over panel, and steam flow can be adjusted by the electric turn-over panel. The utility model can timely carries out block cleaning to the gas pipeline gauged orifice plate.

Description

A kind of gas piping metering orifice plate block clearing device

Technical field:

The utility model relates to a kind of pipeline metering orifice plate block clearing device, particularly a kind of coke oven gas pipe metering orifice plate block clearing device.

Background technology:

Gas piping metering orifice plate is the coal gas total amount that is used for calculating inflow, generally be positioned at gas piping inside, very easily stop up, therefore must carry out block clearing timely to it, existing technology is as shown in Figure 1: the turnover panel 4 that turns on the gas-fire, in gas piping, feed steam by outer net, and metering orifice plate 3 is purged block clearing, the dirt of flush away and cooling water flow are gone into water seal 5 and are discharged gas piping, reach the needs of metering orifice plate block clearing.By exhaust stack 1 and valve 2 control discharge of steam; its major defect: must feed steam at whole gas piping; increased the consumption of steam widely; the supply and then the influence that must stop coal gas being produced; because existing method can cause shutdown; make it not possess chronicity and property (general block clearing regularly in every year three to four times) at any time; make block clearing not prompt enough; the gas flow instability; influence the yield and quality of sintering deposit; and then cause the increase of solid burnup, so that the method complicated operation to be arranged; involve many areas, need other departments such as gas station; Safety Section etc. are common to be cooperated; easily cause gas leakage; potential safety hazard is big, and the residual coal gas among the house steward is drained, and is big for environment pollution.

The utility model content:

The purpose of this utility model provides a kind of simple and quick, and is safe, the gas piping metering orifice plate block clearing device of low steam consumption and environmental pollution.Mainly solve the block clearing of rough gas pipeline metering orifice plate steam and have the technical matters that gas consumption is big and need stop production to overhaul.

The technical solution of the utility model: a kind of gas piping metering orifice plate block clearing device, comprise gas main, coal gas turnover panel, metering orifice plate are installed in gas main, on gas main, be provided with water seal, on the gas main above the water seal, be provided with exhaust stack and valve, it is characterized in that: below gas main dip hatch Board position, set up steamdrum, a plurality of steam pipes are set on the steamdrum, described steam pipe stretches into gas piping, the steam pipe space from end is evenly aimed at the metering orifice plate, steamdrum has electric rotating plate, and steam flow can be regulated by electric rotating plate.

When the post operation personnel judge according to the flow and the pressure of the coal gas of computer demonstration whether the metering orifice plate stops up, in case find its obstruction, can come the metering orifice plate is carried out the steam blowing block clearing by the control electric rotating plate, steam flow can be regulated by turnover panel, and this device has promptness and chronicity.

The utility model has the advantages that when carrying out the block clearing of gas piping metering orifice plate, need not stop gas supply, do not influence production, steam consumption reduces greatly, and is easy and safe to operate, thereby the flow of coal gas has in time been stablized in block clearing, stablized production, environmental pollution is little.

Description of drawings:

Fig. 1 is the prior art structure diagram:

Fig. 2 is the utility model structural representation:

Among the figure: the 1-exhaust stack, the 2-valve, 3-measures orifice plate, 4-coal gas turnover panel, 5-water seal, 6-steam pipe, 7-steamdrum, 8-electric rotating plate.

Embodiment:

With reference to Fig. 2, a kind of gas piping metering orifice plate block clearing device, comprise gas main, coal gas turnover panel 4 is installed in gas main, metering orifice plate 3, on gas main, be provided with water seal 5, on the gas main above the water seal, be provided with exhaust stack 1 and valve 2, below gas main dip hatch Board position, set up

steamdrum

7,3 steam pipes 6 are set on the steamdrum, metering orifice plate 3 places are by three steam pipes 6 of the outside introducing of gas piping, steam pipe 6 is by electric rotating plate 8 controls, when the flow of the coal gas that shows according to computer as the post operation personnel and pressure judged that metering orifice plate 3 takes place to stop up, by control turnover panel 8, steam was by steam pipe 6 inputs of installing additional, metering orifice plate 3 is purged block clearing, condensate water that produces and dirt flow into water seal 5, and discharge gas pipe, treat that gas flow and pressure recover just often, close turnover panel again, whole process can be carried out under the situation of ordinary production.This device is simple to operate, chronicity and property is strong at any time, and block clearing is timely, while is less because of the quantity of steam that feeds, thereby also can not influence the quality of coal gas, and this process need not to carry out emptying as existing method, do not have gas leakage, safe, also pollution-free to atmosphere.

Claims

1. a gas piping measures orifice plate block clearing device, comprise gas main, coal gas turnover panel, metering orifice plate are installed in gas main, on gas main, be provided with water seal, on the gas main above the water seal, be provided with exhaust stack and valve, it is characterized in that: below gas main dip hatch Board position, set up steamdrum, a plurality of steam pipes are set on the steamdrum, described steam pipe stretches into gas piping, and the steam pipe space from end is evenly aimed at the metering orifice plate, and steamdrum has electric rotating plate.