CN2195622Y

CN2195622Y - Discharge pipe

Info

Publication number: CN2195622Y
Application number: CN 94213435
Authority: CN
Inventors: 林隆村
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-06-13
Filing date: 1994-06-13
Publication date: 1995-04-26
Anticipated expiration: 2004-06-13

Abstract

The utility model relates to a gas discharge pipe. The gas discharge pipe comprises an outer casing which has an inlet and an outlet, and a porous inner pipe which is coaxial with the outer casing and is arranged in the outer casing, wherein, sound-absorbing materials are filled between the outer casing and the porous inner pipe; one layer of heat heat-resistance and heat-storage materials are additionally arranged near the porous inner pipe; a core pipe with a hole is also sheathed in the inner part of the porous inner pipe; a flow baffling mechanism is arranged in the core pipe; both ends of the core pipe are respectively sheathed with a non-hole inlet and a non-hole outlet casing pipes. The utility model has the functions of the silencing, the reduction of the toxic gas, and energy saving.

Description

Discharge pipe

The utility model relates to a kind of outlet pipe, especially a kind of outlet pipe with noise reduction and elimination toxic gas that is used on the automobile.

At present, known automobile exhaust pipe, its structure is: be welded with baffle plate in pipe alternately, the gas that motor is discharged is discharged after baffle plate is repeatedly kept out the noise reduction of detouring, and this kind outlet pipe does not have combustion process again, can not eliminate the not clean-burning toxic gas of discharging from motor as CO, be discharged in the air, cause atmospheric pollution, in addition, no quieter material, erasure effect is poor, owing to repeatedly keeping out of baffle plate, recoil to motor is big, causes energy waste.

The purpose of this utility model provides a kind ofly can eliminate toxic gas, good muffling effect, the outlet pipe that recoil is little, save the energy.

The purpose of this utility model is achieved in that

The utility model comprises the shell with import and outlet, and with the coaxial porous inner tube that is located in the shell of shell, between this shell and interior pipe, be filled with sound absorbing material, and be added with the heat-resisting double heat-accumulating material of one deck again near interior pipe, also be with a porose core pipe within the interior pipe, be provided with baffling mechanism in the core pipe, the two ends of core pipe are with atresia inlet/outlet sleeve pipe respectively.

The utility model is owing to adopt said mechanism, make exhaust of short duration viscous flow before baffling mechanism form air cushion from import enters, outwards emission is through the heat-accumulating material layer and the sound-absorbing material layer of baffling mechanism leading portion, to SKIN RETURN, reverse again sound-absorbing material layer through baffling mechanism back segment, to SKIN RETURN, reverse again behind the sound absorbing material and heat-accumulating material of baffling mechanism back segment, enter core Guan Erxiang outlet and discharge.The gas of discharging becomes CO because of toxic gases such as clean-burning CO are fully burnt ₂Deng non-toxic gas, so noise free, pollution is few, and is because of having only a baffling mechanism not have more baffle plate in the outlet pipe, therefore little to the recoil of motor again, reduced motor and overcome the idle work that the recoil exhaust is done, and saved the energy.

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is first embodiment of the present utility model.

Fig. 2 is that the A-A of Fig. 1 is to sectional view.

Fig. 3 is second embodiment of the present utility model.

Fig. 4 is that the B-B of Fig. 3 is to sectional view.

Among the figure: 1, import, 1 ', inlet sleeve, 2, outlet, 2 ', outlet sleeve, 3, shell, 4, interior pipe, 5, sound absorbing material, 6, heat-resisting double heat-accumulating material, 7, core pipe leading portion, 8, core pipe back segment, 9, aperture, 10, deflection plate, 11, hole, 12, the hole, 13, the hole, 14, porose dividing plate, 15, electric heating tube, 16, lead.

See Fig. 1, the two ends of shell 3 are import 1 and outlet 2, in pipe 4 in shell 3 and coaxial with it, the tube wall of interior pipe 4 is covered with aperture 9, filling sound absorbing material 5 between shell 3 and interior pipe 4, and add the heat-resisting double heat-accumulating material 6 of one deck again near interior pipe, go back socket one porose core pipe within the interior pipe 4, be provided with baffling mechanism in the core pipe, the two ends of core pipe are with the inlet sleeve 1 ' and the outlet sleeve 2 ' of atresia respectively.

The import 1 and the outlet 2 of shell 3 are waveform.It plays buffer function when exhaust enters and discharge outlet pipe.

The front end sleeve of interior pipe 4 is outside inlet sleeve 1 ', and the rear end is enclosed within outside the outlet sleeve 2 '.Inlet sleeve 1 ' all is ladder expansion shape with the mouth end of outlet sleeve 2 '.To be sleeved on the shape wave portion of this shell import and outlet, further produce buffer function.

Baffling mechanism is a U-shaped deflection plate 10, and its external diameter is with the internal diameter of core pipe, and the U-shaped opening is towards import.

The core pipe is two sections, its middle core pipe leading portion 7 is at baffling mechanism front end, core pipe back segment 8 is in baffling mechanism rear end, the front end sleeve of core pipe leading portion 7 is in the outside of inlet sleeve 1 ', the rear end of core pipe back segment 8 is enclosed within the inside of outlet sleeve 2 ', and the diameter in the hole 11 on core pipe leading portion 7 tube walls is greater than the diameter in hole 12 on core pipe back segment 8 tube walls.

The core pipe at the diameter of the pipe tap 11,12 of baffling mechanism front and rear sections all greater than the diameter in inner pipe wall hole 9.

Sound absorbing material 5 is a glass fibre.

Heat-resisting double heat-accumulating material 6 is asbestos blanket and silicate blanket and ceramic material.

The mouth end of inlet sleeve 1 ' and outlet sleeve 2 ' is fixed with the corresponding endpoint solid welding of shell 3 respectively, deflection plate 10 and the welding of core pipe, outlet sleeve 2 ' and the welding of core pipe back segment 8 rear ends.

See Fig. 3,4, be filled with catalyst material in the deflection plate 10 of baffling mechanism, the place ahead of catalyst material is provided with a porose dividing plate 14.Catalyst material comprises heavy metal materials such as vanadium, platinum, palladium.

The centre of pipe 4 in baffling mechanism is located at, core pipe front and rear sections 7,8 extends to till the baffling mechanism, and inlet sleeve 1 ' then extends within the U-shaped deflection plate 10 that slightly stretches into baffling mechanism.

Be provided with the electric heating tube 15 of heating usefulness in the interior pipe 4.It can promote not clean-burning toxic gas fully to burn, and the tube wall of electric heating tube is porose.

Claims

1, a kind of outlet pipe, it is characterized in that: this outlet pipe comprises that one has the shell of import and outlet, and with the coaxial porous inner tube that is located in the shell of shell, between this shell and interior pipe, be filled with sound absorbing material, and be added with the heat-resisting double heat-accumulating material of one deck again near interior pipe, also be with a porose core pipe within the pipe in the material, be provided with baffling mechanism in the core pipe, the two ends of core pipe are with atresia inlet/outlet sleeve pipe respectively.

2, outlet pipe as claimed in claim 1 is characterized in that: the import and the outlet of shell are waveform.

3, outlet pipe as claimed in claim 1 is characterized in that: the front end sleeve of interior pipe is outside inlet sleeve, and the rear end is enclosed within outside the outlet sleeve.

4, outlet pipe as claimed in claim 1 is characterized in that: the mouth end of inlet sleeve and outlet sleeve all is ladder and enlarges shape.

5, outlet pipe as claimed in claim 1 is characterized in that: baffling mechanism is the U-shaped deflection plate, and its external diameter is with the internal diameter of core pipe, and the U-shaped opening is towards import.

6, outlet pipe as claimed in claim 1, it is characterized in that: the core pipe is two sections, its middle core pipe leading portion is at baffling mechanism front end, core pipe back segment is in baffling mechanism rear end, the front end sleeve of core pipe leading portion is in the outside of inlet sleeve, the rear end of core pipe back segment is enclosed within the inside of outlet sleeve, and the diameter in the hole on the core pipe leading portion tube wall is greater than the diameter in hole on the core pipe back segment tube wall.

7, outlet pipe as claimed in claim 1 is characterized in that: the core pipe at the diameter of the pipe tap of baffling mechanism front and rear sections all greater than the diameter in inner pipe wall hole.

8, outlet pipe as claimed in claim 1 is characterized in that: be filled with catalyst material in the deflection plate of baffling mechanism, catalyst material the place ahead is provided with a porose dividing plate.

9, outlet pipe as claimed in claim 1 is characterized in that: the centre of pipe in baffling mechanism is located at, and core pipe front and rear sections extends to till the baffling mechanism, and inlet sleeve then extends within the U-shaped deflection plate that slightly stretches into baffling mechanism.

10, outlet pipe as claimed in claim 1 is characterized in that: the electric heating tube that is provided with heating usefulness in the interior pipe.