CN201359198Y - Overpressure self-closing gas drainer - Google Patents

Abstract

The utility model discloses an overpressure self-closing gas drainer, which comprises a bucket (1), a gas rainspout (2), a water-sealing tube (12), an overflow pipe (4), a baffle (5), a steam pipe (15), a heating pipe (6), an access hole (10) and a sealed cap (11), and is characterized in that the gas rainspout (2) is fixed on the outer wall of the bucket (1), the lower end thereof penetrates through the side wall of the bucket (1) and extends into a water dropping cavity (7), and the middle portion of the gas rainspout (2) is fixed with an overpressure self-closing control device (3). Compared with a gas drainer currently used, the overpressure self-closing gas drainer has convenient operation, easy maintenance, safety and reliability, and can automatically close the gas rainspout when the pressure of gas is overlarge, thereby preventing gas from leaking, and increasing the safety performance of the gas drainer.

Description

Overvoltage self-closing coal gas drainer

Technical field

The utility model relates to a kind of improvement of coal gas drainer, particularly a kind of overvoltage self-closing coal gas drainer.

Background technique

At present, on the antifreeze in the winter time heat preserving mode of coal gas drainer, there is drain chamber to insert the steam-heating pipe mode of heating, the central water flooding mode of heating, several modes of steam-heating pipe external, the vertical coal gas automatic water trap of multicell that existing enterprise generally uses, by staving, the coal gas sink drain, insulation steam tube and water sealing (sealing water) pipe constitute, by dividing plate the inner chamber of staving is divided into drowning chamber, booster cavity and drain chamber, establish water sealing (sealing water) pipe on the dividing plate in staving between each chamber, the coal gas sink drain inserts the bottom in the drowning chamber of staving, its upper end is connected with the coal gas main pipe by gate valve, condensed water in the coal gas enters in the drowning chamber of staving by the coal gas sink drain, again by booster cavities at different levels and water sealing (sealing water) pipe, after the spill pipe on drain chamber top discharge, be equipped with water seal on the roof in each chamber of staving, in the chamber of staving, feed steam by the insulation steam tube in the winter time, keep the temperature in the staving to be higher than 0 ℃, prevent the water freezing in the staving, thereby guarantee the coal gas drainer proper functioning, make the draining of coal gas sink drain normal.The deficiency that this coal gas drainer exists is: owing to there is the fluctuation of gas pressure in gas facility, when pressure surpassed the pressure that coal gas drainer can bear, the coal gas that coal gas drainer is sealed up for safekeeping will superpressure be revealed.

Summary of the invention

The purpose of this utility model is to provide a kind of easy to operate, easy maintenance, safe and reliable, can close the overvoltage self-closing coal gas drainer of coal gas sink drain when gas pressure is excessive automatically.

For reaching above purpose, the technological scheme that the utility model adopted is: this overvoltage self-closing coal gas drainer, by staving, the coal gas sink drain, water sealing (sealing water) pipe, spill pipe, dividing plate, steam tube, heating pipe, peep hole and sealed cap constitute, staving fills water in the chamber, staving internal fixation upper clapboard and water sealing (sealing water) pipe, by dividing plate the inner chamber of staving is divided into drowning chamber, booster cavity and drain chamber, on the top of the staving of drain chamber fixing on spill pipe, booster cavity is established 2-3, can be according to the pressure requirement of hydathode, carry out the interval with dividing plate, water sealing (sealing water) pipe is located at respectively and falls into water between chamber and the booster cavity, between two booster cavities and on the dividing plate between booster cavity and the drain chamber, be connected with cavity the dividing plate both sides, water seal height by water sealing (sealing water) pipes at different levels in staving seals coal gas, in drowning chamber, establish peep hole and sealed cap on the barrel body wall of booster cavity and drain chamber, sealed cap is located on the roof of staving, peep hole is located at the bottom of staving, drowning chamber, the structure of booster cavity and drain chamber, spill pipe is identical with existing coal gas drainer, the coal gas sink drain inserts the bottom in the drowning chamber of staving, its upper end is connected with the coal gas main pipe by gate valve, condensed water in the coal gas enters in the drowning chamber of staving by the coal gas sink drain, again by booster cavities at different levels and water sealing (sealing water) pipe, after the spill pipe on drain chamber top discharge, insert in the heating pipe steam tube lower end, its upper end is connected with the main steam range road by gate valve, by steam tube input steam, water in the heating heating pipe, heat is passed in the whole staving again, it is characterized in that the coal gas sink drain is fixed on the outer wall of staving, its lower end is passed the staving sidewall and is stretched in the chamber of falling into water, the fixing self-closing control gear of overvoltage of going up in the middle part of coal gas sink drain.The utility model is also implemented by following measure: the self-closing control gear of described overvoltage, by valve body, support, plug, float, filter screen, slide bar and cleaning eye constitute, the fixing upper bracket in bottom in the chamber of valve body, float is located in the valve body chamber, slide bar passes the through hole of mid-stent, its upper end is connected and fixed with float, lower end and plug are connected and fixed, be provided with filter screen on the endoceliac top of valve, on the sidewall on valve body top, be provided with cleaning eye, the mouth of cleaning eye is the fixing shutoff plate of going up along the place, filter out the pollutant that contains in the condensed water in the coal gas sink drain by filter screen, and regularly open the shutoff plate, in cleaning eye, filter screen is cleaned, the self-closing control gear of overvoltage is installed in the below of water level in the staving chamber, when the pressure in the gas main is normal pressure, the buoyancy of float is mentioned plug, the normally draining of coal gas sink drain, pressure in gas main has fluctuation, when pressure surpasses the pressure that coal gas drainer can bear, under the effect of gas pressure, water level in the coal gas drainer sink drain moves down, when water level moves down into certain position, plug is just in time with the lower end port closing of the self-closing control gear of overvoltage, plug can be with the coal gas shutoff, coal gas and condensed water no longer flow downward, condensed water in the coal gas is deposited collection in the valve body chamber, when water level rises to certain altitude again, float in the valve body is upwards mentioned plug again, condensed water in the coal gas sink drain can enter in the drowning chamber of staving by the self-closing control gear of overvoltage again, gas condensed water in the gas main is got rid of smoothly, and coal gas is blocked in the gas main and gas facility of the self-closing control gear of overvoltage front; The self-closing control gear of described overvoltage, it is provided with gate valve with the two ends that the coal gas sink drain is connected, so that maintenance; The top of described coal gas sink drain is fixed on the outer wall of staving by fixing frame, the coal gas sink drain can be established two, all is provided with the self-closing control gear of overvoltage on the every coal gas sink drain, so that when keeping in repair one of them, another can continue normal use, guarantees the normal operation of coal gas drainer.During use, the upper end of coal gas sink drain is connected on gas main road or the gas facility, condensed water in the pipeline flows in the coal gas sink drain, by entering behind the self-closing control gear of overvoltage in the drowning chamber of staving, because the application of the self-closing control gear of overvoltage, can prevent after fluctuation appears in the gas facility internal pressure, when pressure exceeds the pressure that coal gas drainer can bear, the phenomenon that gas leakage occurs takes place, stop coal gas drainer generation gas leakage, coal gas sink drain lower end oblique cutting goes into to fall into water in the chamber, be convenient to the smooth chamber of falling into water that flows into of micro-dirt in the coal gas, be unlikely to stop up sink drain, at the filter screen of the self-closing control gear of overvoltage chamber internal upper part, can prevent the safe operation of the self-closing control gear of mechanical affected coal gas such as iron rust in the gas pipe line, the cleaning eye on the self-closing control gear of overvoltage top, can be convenient to clear up the filtrate above the filter screen, the operation conditions of the self-closing control gear of regular check coal gas.

The beneficial effects of the utility model are: compare with the coal gas drainer of present use, easy to operate, easy maintenance, safe and reliable, when gas pressure is excessive, can close the coal gas sink drain automatically, prevent gas leakage, improve the Safety performance of coal gas drainer.

Description of drawings

Fig. 1 is a structure front-view schematic diagram of the present utility model.

Fig. 2 analyses and observe enlarged diagram for structure of the present utility model along Figure 1A-A.

Fig. 3 is the broken section enlarged diagram of the self-closing control gear of coal gas of the present utility model.

Embodiment

Make the utility model with reference to accompanying drawing 1,2,3.This overvoltage self-closing coal gas drainer, by staving 1, coal gas sink drain 2, water sealing (sealing water) pipe 12, spill pipe 4, dividing plate 5, steam tube 15, heating pipe 6, peep hole 10 and sealed cap 11 constitute, staving fills water in 1 chamber, staving 1 internal fixation upper clapboard 5 and water sealing (sealing water) pipe 12, by dividing plate 5 inner chamber of staving 1 is divided into the chamber 7 of falling into water, booster cavity 8 and drain chamber 9, on the top of the staving 1 of drain chamber 9 fixing on spill pipe 4, booster cavity 8 is established 2-3, can be according to the pressure requirement of hydathode, carry out the interval with dividing plate 5, water sealing (sealing water) pipe 12 is located at respectively and falls into water between chamber 7 and the booster cavity 8, between two booster cavities 8 and on the dividing plate 5 between booster cavity 8 and the drain chamber 9, be connected with cavity dividing plate 5 both sides, water seal height by water sealing (sealing water) pipes 12 at different levels in staving 1 seals coal gas, in drowning chamber 7, establish peep hole 10 and sealed cap 11 on staving 1 wall of booster cavity 8 and drain chamber 9, sealed cap 11 is located on the roof of staving 1, peep hole 10 is located at the bottom of staving 1, drowning chamber 7, the structure of booster cavity 8 and drain chamber 9, spill pipe 4 is identical with existing coal gas drainer, coal gas sink drain 2 inserts the bottom in the drowning chamber 7 of staving 1, its upper end is connected with coal gas main pipe or gas facility by gate valve, condensed water in the coal gas enters in the drowning chamber 7 of staving 1 by coal gas sink drain 2, again by booster cavities 8 at different levels and water sealing (sealing water) pipe 12, after discharge from the spill pipe 4 on drain chamber 9 tops, insert in the heating pipe 6 steam tube 15 lower ends, its upper end is connected with the main steam range road by gate valve, by steam tube 15 input steam, water in the heating heating pipe 6, again heat is passed in the whole staving 1, it is characterized in that coal gas sink drain 2 is fixed on the outer wall of staving 1, its lower end is passed staving 1 sidewall and is stretched in the chamber 7 of falling into water, the fixing self-closing control gear 3 of overvoltage of going up in the middle part of coal gas sink drain 2.The self-closing control gear 3 of described overvoltage, constitute by valve body 31, support 32, plug 33, float 34, filter screen 36, slide bar 37 and cleaning eye 35, the fixing upper bracket 32 in bottom in the chamber of valve body 31, float 34 is located in valve body 31 chambeies, slide bar 37 passes the through hole at support 32 middle parts, its upper end is connected and fixed with float 34, lower end and plug 33 are connected and fixed, top in valve body 31 chambeies is provided with filter screen 36, be provided with cleaning eye 35 on the sidewall on valve body 31 tops, the mouth of cleaning eye 35 is the fixing shutoff plate of going up along the place; The self-closing control gear 3 of described overvoltage, its two ends that are connected with coal gas sink drain 2 are provided with gate valve 13; The top of described coal gas sink drain 2 is fixed on by fixing frame 14 on the outer wall of staving 1, and coal gas sink drain 2 can be established two, all is provided with the self-closing control gear 3 of overvoltage on the every coal gas sink drain 2.

Claims (3)

1, a kind of overvoltage self-closing coal gas drainer, by staving (1), coal gas sink drain (2), water sealing (sealing water) pipe (12), spill pipe (4), dividing plate (5), steam tube (15), heating pipe (6), peep hole (10) and sealed cap (11) constitute, staving (1) fills water in the chamber, staving (1) internal fixation upper clapboard (5) and water sealing (sealing water) pipe (12), by dividing plate (5) inner chamber of staving (1) is divided into drowning chamber (7), booster cavity (8) and drain chamber (9), the fixing spill pipe (4) of going up on the top of the staving (1) of drain chamber (9), booster cavity (8) is established 2-3, water sealing (sealing water) pipe (12) is located at respectively between drowning chamber (7) and the booster cavity (8), between two booster cavities (8) and on the dividing plate (5) between booster cavity (8) and the drain chamber (9), in drowning chamber (7), establish peep hole (10) and sealed cap (11) on staving (1) wall of booster cavity (8) and drain chamber (9), it is characterized in that coal gas sink drain (2) is fixed on the outer wall of staving (1), its lower end is passed staving (1) sidewall and is stretched in the drowning chamber (7), the fixing self-closing control gear of overvoltage (3) of going up in the middle part of coal gas sink drain (2).

2, overvoltage self-closing coal gas drainer according to claim 1, it is characterized in that the self-closing control gear of described overvoltage (3), by valve body (31), support (32), plug (33), float (34), filter screen (36), slide bar (37) and cleaning eye (35) constitute, the fixing upper bracket (32) in bottom in the chamber of valve body (31), float (34) is located in valve body (31) chamber, slide bar (37) passes the through hole at support (32) middle part, its upper end is connected and fixed with float (34), lower end and plug (33) are connected and fixed, top in valve body (31) chamber is provided with filter screen (36), be provided with cleaning eye (35) on the sidewall on valve body (31) top, the mouth of cleaning eye (35) is the fixing shutoff plate of going up along the place.

3, overvoltage self-closing coal gas drainer according to claim 1 and 2 is characterized in that the self-closing control gear of described overvoltage (3), and its two ends that are connected with coal gas sink drain (2) are provided with gate valve (13).

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