CN103485865A

CN103485865A - Exhaust pipe of diesel engine for well drilling

Info

Publication number: CN103485865A
Application number: CN201310375208.7A
Authority: CN
Inventors: 李元化; 羽保林; 李胜忠; 黄继亮; 赵备库; 陈建国
Original assignee: Drilling Well Three Cos Of Central Plains Petroleum Works Co Ltd Of China Petrochemical Industry; China Petrochemical Corp
Current assignee: Drilling Well Three Cos Of Central Plains Petroleum Works Co Ltd Of China Petrochemical Industry; China Petrochemical Corp
Priority date: 2013-08-26
Filing date: 2013-08-26
Publication date: 2014-01-01
Anticipated expiration: 2033-08-26
Also published as: CN103485865B

Abstract

The invention relates to an exhaust pipe of a diesel engine for well drilling. The exhaust pipe consists of an exhaust pipe assembly, a sound attenuation extinguishment pipe, a sound attenuation blade and a water injection ring, wherein the exhaust pipe assembly is divided into a front exhaust pipe and a rear exhaust pipe; the annular sound attenuation blade and the water injection ring are welded in a cavity of the sound attenuation extinguishment pipe; an annular front seal cover plate and an annular rear seal cover plate are arranged at the two ends of the sound attenuation extinguishment pipe; a drain hole is formed in the lower part of the rear seal cover plate; a water inlet pipe which is connected with the water injection ring is welded with the upper part of the rear seal cover plate; the front exhaust pipe is connected into central through holes of the front seal cover plate and the sound attenuation blade in an injecting way; the rear exhaust pipe is connected into a central through hole of the rear seal cover plate in an injecting way. According to the exhaust pipe of the diesel engine for well drilling, the exhaust pipe assembly, the sound attenuation extinguishment pipe, the sound attenuation blade and the water injection ring are used, the sound attenuation extinguishment pipe is divided into a front noise reduction chamber, a cooling chamber and a rear noise reduction chamber, the aims of reducing noises of high-temperature exhaust gas discharged by the exhaust pipe of the diesel engine for many times as well as cooling and outfiring are achieved, and the safe and environment-friendly requirements of drilling construction are met.

Description

A kind of well-drilling diesel engine exhaust tube

Technical field

The present invention relates to a kind of well-drilling diesel engine exhaust tube, belong to oil-well rig and use diesel engine equipment technology field.

Background technique

The oil drilling machine rig, generally be equipped with 3 190 diesel engines as power engine, for wellbore construction provides continuous driving force.In wellbore construction, the waste gas that diesel engine is discharged, useless cigarette are discharged outside body by outlet pipe.Because diesel engine noise is larger, have a strong impact on worker and local resident's healthy and normal life; Simultaneously in rock gas prospect pit construction; increase along with well depth; the drilling well load is more and more heavier; high or the incomplete combustion of diesel engine temperature; often can spray Mars in outlet pipe, in case of rock gas in well overflows, the fire disaster accident very easily occur; cause the fatal crass, to country, bring great property loss.For making diesel engine fire prevention noise reduction, the technician has designed multiple Diesel Engine Exhaust Pipe, but effect is all not ideal enough.Application number is 201210164025.6 to disclose a kind of well-drilling diesel engine exhaust tube fire-fighting unit, by fire extinguisher, suction tude, shower, intake pipe and waste pipe, formed, though can realize the fire prevention purpose, undesirable to the noise reduction of diesel engine.

Summary of the invention

Technical problem to be solved by this invention is for the undesirable defect of Diesel Engine Exhaust Pipe fire prevention noise reduction in above-mentioned prior art, a kind of well-drilling diesel engine exhaust tube with fire prevention decrease of noise functions is provided, reduces to greatest extent the probability of diesel engine noise pollution and breaking out of fire accident.

The present invention is comprised of outlet pipe assembly, noise reduction fire extinguishing tube, noise reduction blade, water ring.The outlet pipe assembly is divided into front exhaust pipe and final vacuum pipe; Be welded with ring-type noise reduction blade and water ring in the cavity of noise reduction fire extinguishing tube, two ends are equipped with front sealed cover and the rear sealed cover of ring-type, and the bottom of rear sealed cover has weep hole, and top is welded with the intake pipe be connected with water ring; Front exhaust pipe is plugged in the central through bore of front sealed cover and noise reduction blade, and the final vacuum pipe is plugged in rear sealed cover central through bore.

The present invention utilizes outlet pipe assembly, noise reduction fire extinguishing tube, noise reduction blade, water ring, the noise reduction fire extinguishing tube is divided into to front noise reduction chamber, cooling chamber and rear noise reduction chamber, the high-temp waste gas that realization is discharged Diesel Engine Exhaust Pipe carries out repeatedly noise reduction and the purpose of fire extinguishing that cools, and meets wellbore construction safety, environmental requirement.

The accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is noise reduction blade structure schematic diagram of the present invention;

Fig. 3 is water ring structural representation of the present invention.

Embodiment

By reference to the accompanying drawings 1, accompanying

drawing

2 and 3 couples of the present invention of accompanying drawing do following narration.

The present invention is comprised of outlet pipe assembly 1, noise reduction fire extinguishing tube 2, noise reduction blade 3, water ring 4.Outlet pipe assembly 1 is divided into front exhaust pipe 1a and final vacuum pipe 1b; Be welded with ring-type noise reduction blade 3 and water ring 4 in the cavity of noise reduction fire extinguishing tube 2, the inner chamber of noise reduction fire extinguishing tube 2 is divided into to front noise reduction chamber 2a, cooling chamber 2b and rear noise reduction chamber 2c, noise reduction fire extinguishing tube 2 two ends are equipped with front sealed cover 5a and the rear sealed cover 5b of ring-type, the bottom of rear sealed cover 5b has weep hole 7, and top is welded with the intake pipe 6 be connected with water ring 4; Front exhaust pipe 1a is plugged in the central through bore of front sealed cover 5a and noise reduction blade 3, and final vacuum pipe 1b is plugged in the central through bore of rear sealed cover 5b.

Have noise reduction dispensing orifice 8a and noise reduction dispensing orifice 8b on the front exhaust pipe 1a of the described cavity that is positioned at noise reduction fire extinguishing tube 2 and the tube wall of final vacuum pipe 1b part pipeline section.

Described noise reduction dispensing orifice 8a and noise reduction dispensing orifice 8b are distributed on the tube wall of the front exhaust pipe 1a of the cavity that is positioned at noise reduction fire extinguishing tube 2 and final vacuum pipe 1b part pipeline section.

Described noise reduction blade 3 is the radiation sector structure.The blade place face of noise reduction blade 3 and the vertical surface of noise reduction blade 3 are 40 °～50 ° angles.

Described water ring 4 is the annulus that become by steel tube prefabricated, is welded in noise reduction fire extinguishing tube 2 cavitys, at it, on the tube wall corresponding with noise reduction blade 3, has hole for water spraying 10.

Front exhaust pipe 1a of the present invention is connected with the diesel exhaust gas pipe flange, and final vacuum pipe 1b is connected with lengthening outlet pipe 9.The high-temp waste gas of discharging through Diesel Engine Exhaust Pipe, its part high-temp waste gas enters the front noise reduction chamber 2a of noise reduction fire extinguishing tube 2 through the noise reduction dispensing orifice 8a of front exhaust pipe 1a, realize noise reduction one time, realize the secondary noise reduction through noise reduction blade 3 again, after mixing, high-temp waste gas after the noise reduction high-temp waste gas interior with entering in advance cooling chamber 2b enter final vacuum pipe 1b, after entering rear noise reduction chamber 2c and carry out three noise reductions by the noise reduction dispensing orifice 8b of final vacuum pipe 1b, through lengthening outlet pipe 9, discharge, thus, the high-temp waste gas that Diesel Engine Exhaust Pipe is discharged, after noise reduction repeatedly, can realize diesel engine noise reduction purpose, the cooling water entered in water ring 4 by intake pipe 6 sprays through the hole for water spraying 10 of water ring 4, to entering high-temp waste gas in cooling chamber 2b, lower the temperature after fire extinguishing, weep hole 7 by rear sealed cover 5b bottom is discharged, enter the circulation water pot, realize high-temp waste gas cooling fire extinguishing and environmental protection purpose that Diesel Engine Exhaust Pipe is discharged.

Claims

1. a well-drilling diesel engine exhaust tube, be comprised of outlet pipe assembly (1), noise reduction fire extinguishing tube (2), noise reduction blade (3), water ring (4), it is characterized in that: outlet pipe assembly (1) is divided into front exhaust pipe (1a) and final vacuum pipe (1b); Be welded with ring-type noise reduction blade (3) and water ring (4) in the cavity of noise reduction fire extinguishing tube (2), noise reduction fire extinguishing tube (2) two ends are equipped with front sealed cover (5a) and the rear sealed cover (5b) of ring-type, the bottom of rear sealed cover (5b) has weep hole (7), and top is welded with the intake pipe (6) be connected with water ring (4); Front exhaust pipe (1a) is plugged in the central through bore of front sealed cover (5a) and noise reduction blade (3), and final vacuum pipe (1b) is plugged in the central through bore of rear sealed cover (5b).

2. a kind of well-drilling diesel engine exhaust tube according to claim 1 is characterized in that: be positioned on the tube wall of the front exhaust pipe (1a) of cavity of noise reduction fire extinguishing tube (2) and final vacuum pipe (1b) part pipeline section and have noise reduction dispensing orifice (8a) and noise reduction dispensing orifice (8b).

3. a kind of well-drilling diesel engine exhaust tube according to claim 1 and 2, it is characterized in that: described water ring (4) is the annulus become by steel tube prefabricated, be welded in noise reduction fire extinguishing tube (2) cavity, at it, on the tube wall corresponding with noise reduction blade (3), have hole for water spraying (10).

4. a kind of well-drilling diesel engine exhaust tube according to claim 3 is characterized in that: described noise reduction dispensing orifice (8a) and noise reduction dispensing orifice (8b) are distributed on the tube wall of the front exhaust pipe (1a) of the cavity that is positioned at noise reduction fire extinguishing tube (2) and final vacuum pipe (1b) part pipeline section.

5. a kind of well-drilling diesel engine exhaust tube according to claim 1 and 2 is characterized in that: described noise reduction blade (3) is the radiation sector structure.

6. a kind of well-drilling diesel engine exhaust tube according to claim 5, it is characterized in that: the vertical surface of the blade of noise reduction blade (3) and noise reduction blade (3) is 40 °～50 ° angles.