CN201322191Y

CN201322191Y - Water draining device for gas condensate

Info

Publication number: CN201322191Y
Application number: CNU2008202146366U
Authority: CN
Inventors: 蒋卫刚
Original assignee: Nanjing Iron and Steel United Co Ltd
Current assignee: Nanjing Iron and Steel United Co Ltd
Priority date: 2008-12-23
Filing date: 2008-12-23
Publication date: 2009-10-07
Anticipated expiration: 2018-12-23

Abstract

The utility model relates to a water draining device of a pipeline, in particular to a water draining device for gas condensate, which comprises a gas pipeline, a waste draining pipe, a lower sewer valve, a water drainer and a water reservoir. The upper end of the waste draining pipe is connected with the gas pipeline, while the lower end is connected with the water drainer; the lower sewer valve is arranged at one end of the waste draining pipe, which is close to the water drainer; the water reservoir is arranged below the water drainer; the upper end of the waste draining pipe is connected with the gas pipeline through an upper sewer valve; and the lower sewer valve is connected with the water drainer through a connected short pipe. The utility model has simple structure, strong sewage draining capability, favorable dredging effect and convenient and safe use.

Description

The gas liquor drainage means

Technical field

The utility model relates to a kind of pipe drainage device, gas liquor drainage means specifically.

Background technique

The coal gas that metallurgical industry blast furnace, coke oven are produced, mainly be to put use for each user by the gas pipe line transmission ﹠ distribution, its coal gas contains a large amount of saturated vapors and various impurity, in gas pipe line transmission ﹠ distribution process, along with decrease of temperature, a large amount of saturated steams are attaching impurity and are being deposited in the pipeline through condensation, if untimely discharge, just might quicken the electrochemical corrosion of coal gas tube wall, make gas pipe line rot to cause gas leakage.Condensed fluid is promoted by coal gas stream more for a long time, also will produce tidal bore, causes the gas pressure fluctuation.Gathering of condensed fluid can make conduit section reduce, and boost pressure is fallen, and forms water seal at low-lying section gas transmission is interrupted, and be serious even cause the excessive or pipeline shake rolling of pipe load and rupture.If enter the untimely discharge of the condensed fluid of pressurized equipment, very likely cause the damage of pressurized equipment.So gas pipe line every about 150 meters or low-lying section need hydathode is set.

Existing gas liquor drainage means structure as shown in Figure 1, comprise gas pipe line 1, drain pipe 4, hydathode 8, blowdown valve 6 and wet pit 9, drain pipe 4 upper ends connect gas pipe line 1 by flange, hydrophone 8 runs in the lower end, position near hydathode 8 on drain pipe 4 is provided with down blow valve 6, and hydathode 8 belows are provided with wet pit 9.Because gas liquor contains a large amount of impurity, very easily the drain pipe inwall that is connected with hydathode attached to gas pipe line diminishes caliber, until obstruction, is deposited in the hydathode cylindrical shell, makes hydathode lose drain function.If untimely mediation can cause the generation of above fault equally.Only consider the draining of pipeline, and neglected the impurity in the gas liquor in hydathode and drain pipe, to pile up and the obstruction that causes, the caliber of increase drain pipe blindly, this is not the way of putting things right once and for all.Caliber is big more, delay the stifled cycle of drain pipe ash though can play, caliber is big more, and blowdown valve is also wanted corresponding increasing, sealing effect during the blowdown valve closed condition also will be poor more like this, blowdown valve is not closed completely, in case gas balance is destroyed, the coal gas generating capacity changes for amount greater than coal gas, make the unusual superelevation of pipe network gas pressure, the as easy as rolling off a log hydathode that causes punctures, and gas leakage causes the generation of serious accident such as gas poisoning.

Summary of the invention

Technical problem to be solved in the utility model is: at the shortcoming that above prior art exists, it is strong to propose a kind of pollution discharge capability, dredge effective, safe gas liquor drainage means easy to use.

The technological scheme that the utility model solves above technical problem is: the gas liquor drainage means, comprise gas pipe line, drain pipe, down blow valve, hydathode and wet pit, termination gas pipe line on the drain pipe, hydrophone runs in the lower end, the down blow valve is located at drain pipe that end near hydathode, wet pit is located at the below of hydathode, and the drain pipe upper end joins by a scum valve and gas pipe line, and the down blow valve links to each other with hydathode by a connection short tube.

Gas liquor drainage means of the present utility model is provided with the hand hole of band valve in the pipe bent position of drain pipe.On the drain pipe above the down blow valve, be provided with access tube.The gas pipe line below is provided with a flared horn, and scum valve and described flared horn are joined.

The utility model has the advantages that: the drain pipe upper end joins by a scum valve and gas pipe line, and under the normal condition, valve is often opened, when drain pipe stops up, can cut off coal gas by valve closing, the operating personnel can avoid the generation of gas poisoning when the mediation drain pipe.At the hand hole of pipe bent position mounting strap valve, can under the situation that drain pipe is not dismantled, close scum valve and cut off coal gas, open hand hole, just can finish the mediation of drain pipe well.The down blow valve links to each other with hydathode by a connection short tube, in case drain pipe or hydathode dust stratification stop up, all short tube can be removed, directly buy and sell and ash is cleared in pipeline after loose with reinforcing bar, or from the hydathode hand hole, ash picker is come out, again short tube, hand hole are connected, just finished the mediation operation after the hydathode water filling, very quick.On the drain pipe above the down blow valve, be provided with access tube, can check whether unimpeded whether hydathode, drain pipe and gaspipe network exist ponding, in addition, under the obstructed situation of hydathode, for the ponding that makes gaspipe network can rationally discharge, access tube can also play the effect of temporary drainage.

Description of drawings

Fig. 1 is existing gas liquor drainage means structural representation.

Fig. 2 is a structural representation of the present utility model.

Embodiment

Embodiment one

The structure of present embodiment as shown in Figure 2, the gas liquor drainage means, comprise gas pipe line 1, drain pipe 4, down blow valve 6, hydathode 8 and wet pit 9, termination gas pipe line 1 on the drain pipe 4, the lower end hydrophone 8 that runs in, down blow valve 6 are located at drain pipe 4 that end near hydathodes 8, and wet pit 9 is located at the below of hydathode 8, drain pipe 4 upper ends join by a scum valve 2 and the flared horn of gas pipe line 1, and down blow valve 6 links to each other with hydathode 8 by a connection short tube 7.Pipe bent position at drain pipe 4 is provided with the hand hole 3 of being with valve, is provided with access tube 5 on the drain pipe above the down blow valve 64.

Changing side flange connection under gas pipe line 1 horn mouth into scum valve 2 connects.Under the normal condition, scum valve 2 is often opened, and when drain pipe 4 stops up, can close by scum valve 2 and cut off coal gas, and the operating personnel can avoid the generation of gas poisoning when mediation drain pipe 4.Especially in the winter of cold, the situation of down blow valve 6 bursting by freezing happens occasionally, if untimelyly cut off coal gas by closing scum valve 2, changes down blow valve 6, and coal gas is in case leak, and its consequence is with hardly imaginable.Changed down blow valve 6 in the past, and must reduce gaspipe network pressure earlier, and just can carry out behind the blind plate on the horn mouth lower edge is stifled, the gas of production usefulness like this can be affected.

Hand hole 3 at pipe bent position mounting strap DN25 valve.Crooked pipeline is in case obstruction is to be difficult to mediation, and method commonly used is: drain pipe 4 is taken off, get angry and sever, after the cleaning, welding assembly is time-consuming again, and is dangerous also uneconomical.Installation hand hole can be closed scum valve 2 and cut off coal gas under the situation that drain pipe 4 is not dismantled, and opens hand hole, just can finish the mediation of drain pipe 4 well.

The access tube 5 of DN25 being installed at down blow valve 6 upsides is to check whether unimpeded whether hydathode, drain pipe and gaspipe network exist the effective means of ponding.Checked in the past whether unimpeded whether hydathode 8, drain pipe 4 and gas pipe line 1 net exist ponding, main by removing 6 times side flange screws of down blow valve, pry open flange connections with crowbar then, open valve, see whether this place steams, the operating personnel is spattered all over the body the water several mouthfuls of coal gas of choking exactly, is unfavorable for safety work.For coke-stove gas, it is common occurrence that the pipeline dust stratification causes drain pipe to stop up, and also is the homely food that the operating personnel overhauls, the characteristics that we easily gasify according to its heating, directly feed steam from access tube, make its gasification be dissolved in water, thereby reach the purpose of pipe-dredging.In addition, under the obstructed situation of hydathode 8, for the ponding that makes gaspipe network can rationally discharge, access tube 5 can also play the effect of temporary drainage.

At down blow valve 6 downsides the long connection short tube 7 of 300mm is installed, in case drain pipe 4 or hydathode 8 dust stratifications stop up, all short tube can be removed, directly buy and sell and ash is cleared in pipeline after loose with reinforcing bar, or from hydathode 8 hand holes, ash picker is come out, again short tube, hand hole are connected, just finished the mediation operation after hydathode 8 water fillings, operation is got up handy, and is also very quick.Hydathode 8 must be removed and could be dredged in the past, strengthen task difficulty so virtually.

The utility model can also have other mode of execution, and the technological scheme that equal replacement of all employings or equivalent transformation form all drops within the claimed scope of the utility model.

Claims

1. gas liquor drainage means, comprise gas pipe line, drain pipe, down blow valve, hydathode and wet pit, termination gas pipe line on the drain pipe, hydrophone runs in the lower end, the down blow valve is located at drain pipe that end near hydathode, wet pit is located at the below of hydathode, it is characterized in that: described drain pipe upper end joins by a scum valve and described gas pipe line, and described down blow valve links to each other with described hydathode by a connection short tube.

2. gas liquor drainage means as claimed in claim 1 is characterized in that: the hand hole that is provided with the band valve in the pipe bent position of described drain pipe.

3. gas liquor drainage means as claimed in claim 1 is characterized in that: be provided with access tube on the drain pipe above the down blow valve.

4. gas liquor drainage means as claimed in claim 1 is characterized in that: described gas pipe line below is provided with a flared horn, and described scum valve and described flared horn are joined.