CN2611610Y

CN2611610Y - Fast detaching exhaust pipe

Info

Publication number: CN2611610Y
Application number: CN 03215782
Authority: CN
Inventors: 刘成贵; 吴文章; 修敏军; 郭忠强
Original assignee: No5 Well-Drilling Co Huanghe Well-Drilling General Co Shengli Petroleum Adm
Current assignee: No5 Well-Drilling Co Huanghe Well-Drilling General Co Shengli Petroleum Adm
Priority date: 2003-03-14
Filing date: 2003-03-14
Publication date: 2004-04-14
Anticipated expiration: 2013-03-14

Abstract

The utility model relates to a quick disassembly and assembly discharge pipe, which comprises a flange, a discharge pipe nipple, a clamp, a lower discharge pipe, an intermediate discharge pipe, a perforated plate, weight steel, an upper discharge pipe and discharge pipe covers. Wherein the discharge pipe nipple and the lower discharge pipe are mutually connected via the clamp and both are respectively provided with an annular projected shoulder at the connection place. The faying surface of the two projected shoulders is a flat surface, and the side surfaces of the two projected shoulders are all circular pyramidal surfaces, further the two projected shoulders form a circular ring with two pyramidal surfaces. The clamp is an opening clamp with two internal pyramidal surfaces, and the opening place is provided with a bolt-fastening hole, thereby the clamp is just held on the circular ring formed by the projected shoulders and is fastened via a screw. The round perforated plate is installed in the intermediate discharge pipe. The utility model realizes the functions of quick disassembly and assembly, noise reduction and dust removal because of perforated plate and the clamp with internal pyramidal surfaces, which can be applied to oil-drilling diesel engines.

Description

The fast assembling-disassembling outlet pipe

Technical field the utility model relates to Diesel Engine Exhaust Pipe, especially a kind of oilfield outlet pipe of large-scale diesel engine.

Background technique is present, and the used outlet pipe of high-power diesel engine that drilling crew uses is commonly straight barrel shape, and smoke exhaust is directly discharged, and the bottom directly is connected on the diesel engine with flange, must pull down chimney owing to superelevation when carrying diesel engine.After diesel engine used a period of time, because high temperature and environmental factor, the easy rust of the connecting bolt on the flange was not extremely torn open not got off.Direct-exhausting type chimney noise is big simultaneously, and erasure effect is poor, and dust removing effects is also bad.Chinese patent " exhaust silencer for internal-combustion engine " (94239849), " low noise filtering type outlet pipe " (94238866), " diesel engine baffler " (93216910), " a kind of diesel engine silencer " (92220599), " diesel engine vent gas purification, silencing apparatus " (96214958), " diesel engine energy-saving exhaust pipe featuring " (98242158), " exhaust silencer for internal-combustion engine " (87207078), above-mentioned patent does not all relate to the fast assembling-disassembling problem of outlet pipe.

The summary of the invention the purpose of this utility model provides a kind of fast assembling-disassembling outlet pipe, to solve outlet pipe dismounting difficulty and noise problem.The utility model is to realize like this, it comprises flange the fast assembling-disassembling outlet pipe, the outlet pipe pipe nipple, last outlet pipe, balance weight iron, the outlet pipe lid, clamp, middle outlet pipe, porous slab, screw bolt and nut, in outlet pipe pipe nipple upper end and connection place, following outlet pipe lower end the ring-type convex shoulder is arranged all, the junction plane of two convex shoulders is the plane, on, two convex shoulder sides are the ring-type conical surface down, clamp is a circular clamp, the inner working face of clamp is the groove that two internal conical surfaces are formed, two convex shoulders are clamped in the inner groovy of clamp, opening at clamp has attachment hole, clamping bolt is installed on the hole, nut tightening is on bolt, be connected with middle outlet pipe between outlet pipe and the last outlet pipe down, be hush pipe, acoustic board is installed in hush pipe, acoustic board is discoid, on acoustic board processing porose, the acoustic board along continuous straight runs is fixed in the hush pipe.The utility model is more convenient for dismantling outlet pipe owing to take conical surface captive closure to guarantee reliable sealing between the outlet pipe, is to install porous slab in the hush pipe additional at middle outlet pipe simultaneously, has played the effect of noise reduction and dedusting.This model utility is simple in structure, and is easy to install, can promote the use of on diesel engine in drilling well.

Description of drawings Fig. 1 is the schematic representation of a kind of fast assembling-disassembling outlet pipe of the utility model, outlet pipe, 9 outlet pipes lid on outlet pipe, 6 porous slabs, 7 balance weight irons, 8 in 1 flange among the figure, 2 outlet pipe pipe nipples, 3 clamps, the 4 times outlet pipes, 5.

Embodiment is with reference to accompanying drawing 1, and flange 1 is fixed on the diesel exhaust outlet port with outlet pipe pipe nipple 2, and joint, outlet pipe pipe nipple 2 top is a convex shoulder, and the upper surface of convex shoulder is a circular planes, and downside is a conical surface; In following joint, outlet pipe 4 lower end one convex shoulder is arranged also, the bottom surface of convex shoulder is a circular planes, the upper side of this convex shoulder is a conical surface, two convex shoulders of outlet pipe pipe nipple 2 and following outlet pipe 4 joints form the annulus with two conical surfaces, clamp 3 just is buckled on this annulus, and clamp 3 is for having the circular clamp of two internal conical surfaces, and the processing of clamp opening is porose, bolt is through in the hole, and passes through nut tightening.Outlet pipe 5 in being welded between following outlet pipe 4 and the last outlet pipe 8, it is hush pipe, in middle outlet pipe 5, acoustic board 6 is installed, it is porous slab, acoustic board is discoid, on acoustic board processing porose, the acoustic board along continuous straight runs is fixed in the hush pipe, the quantity of acoustic board can be two or polylith.When drilling team removal of home needs the dismounting outlet pipe, only need unload the clamp on the outlet pipe like this, both can take off outlet pipe rapidly, when waste gas passed through, acoustic board is absorbing sound and lowering noise and dedusting effectively simultaneously, had not only improved working environment but also had reduced pollution to atmosphere.

Claims

1, fast assembling-disassembling outlet pipe, it comprises flange, following outlet pipe, goes up outlet pipe, hush pipe, outlet pipe lid, bolt, nut, it is characterized in that in joint, outlet pipe pipe nipple top convex shoulder, convex shoulder upper surface being arranged is circular planes, and downside is the vertebra face; In following joint, outlet pipe lower end one convex shoulder is arranged, the bottom surface of convex shoulder is a circular planes, and upper side is the vertebra face; Clamp is a circular clamp, and there is the circular conical surface groove the inside of clamp, and this groove fastening has bolt hole at the opening of clamp on the conical surface annulus of outlet pipe pipe nipple and following outlet pipe joint formation, firm bolt is installed on the hole.

2, fast assembling-disassembling outlet pipe according to claim 1 is characterized in that being equipped with in the hush pipe acoustic board, and acoustic board is discoid, on acoustic board processing porose, the acoustic board along continuous straight runs is fixed in the hush pipe.