A kind of exhaust pipe with rainproof function
Technical field
The utility model relates to exhaust gas treatment field, especially a kind of exhaust pipe with rainproof function.
Background technique
It is all that the industrial waste gas generated for industrial site is primarily referred to as in waste gas purification (Flue gas purification)
The work administered such as dust particle, flue gas flue dust, gas with foreign flavor, toxic and harmful gas.Common waste gas purification has work
Factory's fume and exhaust gas purifying, workshop dust waste gas purification, organic waste-gas purification, the purification of exhaust gas peculiar smell, acid-base waste gas purifying, chemical industry are useless
Gas purification etc..Chimney is the exhaust apparatus of purification system.Due to still also containing certain density pollution in purified gas
Object, these pollutants spread in an atmosphere after smoke stack emission, dilute, and final settlement is to ground.In order to guarantee ground pollution
Object concentration is no more than surrounding air matter from standard, and chimney must have certain height.In addition, in order to guarantee waste gas cleaning system
It can operate normally, according to the difference of purified treatment object, generally require to add necessary ancillary equipment in purification system.
Conventional exhaust gas is flowed out from the side of stovepipe, and processed gas will receive top during rising
The blocking of rainhat, umbrella crown bad control with a distance from air hose mouth, low windage is big, influences air output, and high rainproof effect is then
It is bad.In addition, also there is the ventilation duct without umbrella crown, but ventilation duct domestic demand installs water receiving funnel, due to water receiving funnel diameter not
The diameter of air pipeline can be less than, have biggish windage, vented exhaust is unsmooth, causes biggish kinetic energy rejection.It is existing simultaneously
There is patent publication No. CN104482556A, discloses " a kind of air pipeline air outlet rain-proof device, the upper bend pipe and lower bend pipe
By flanged joint, setting is rainy above rainwater drainage tube described in setting rain drainage tube on the right side of the upper bend pipe lower half portion
Water baffle, the rainwater height of baffle plate are no more than 60mm, are not less than 40mm, therefore not only make interior by air pipeline discharge
Exhaust gas can avoid pollution environment, while rainproof effect is good, really minimize windage, favorably directly to high altitude discharge
In energy saving ".The technical solution of the patent uses bend pipe as rain-proof measure, but is disadvantageous in that using rainwater baffle,
If baffle is too small to be not achieved water proof effect, the too big barrier pipeline air exhaust water of baffle, and causes energy consumption higher, while the patent pair
Do not take drainage measure in the upper wall of bend pipe, rainwater still can be by bend pipe upper wall flow ventilation pipe inside, therefore also deposit
It needs to improve in certain defect and deficiency.
In summary the prior art, the discharge of flue gas leading opening are conducive to the diffusion of exhaust gas, are good for the environment, but open discharge is anti-
Rain problem is not settled properly still, and the rain-proof problems demand of flue gas leading opening discharge solves.
Utility model content
The purpose of this utility model is to provide a kind of exhaust pipes with rainproof function, to realize effectively anti-
While rain, the discharge and diffusion of gas are not influenced.
To achieve the above object, the utility model uses following technical scheme:
A kind of exhaust pipe with rainproof function, comprising: gas sampling pipe;
Air guide drainage tube, the air guide drainage tube are made of gas-guide tube and the drainage tube being set in outside gas-guide tube, institute
The gap stated between gas-guide tube and drainage tube constitutes drainage trough;The drainage tube be bend pipe, the lower end closed of drainage tube and with institute
The outer wall for the gas sampling pipe stated connects;The import of the gas-guide tube is docked with the outlet of gas sampling pipe, and gas-guide tube into
Mouth caliber is consistent with the outlet caliber of gas sampling pipe;The outlet of the gas-guide tube is towards horizontal direction, and gas-guide tube outlet
The tube wall length of top half is greater than the tube wall length of lower half portion;
Exhaust gas evacuation pipe, the exhaust gas evacuation pipe are bend pipe, the upper end company of the import of exhaust gas evacuation pipe and the drainage tube
It connects, the outlet of exhaust gas evacuation pipe is vertically upward;
Drain bucket, the drain bucket are detachably connected on the closed end of drainage tube lower end, the import of drain bucket with draw
The connection of flow tube inner cavity, the outlet of drain bucket is connected with drainpipe.
Preferably, the drainage tube is 120 ° of bend pipes.
Preferably, the lower end of the drainage tube, the import of gas-guide tube and the outlet of gas sampling pipe pass through same flange
Connection.
Preferably, the internal diameter of the drainage tube is greater than the outer diameter 1-5cm of gas-guide tube.
Preferably, the drain bucket is rectangular bucket, and drain bucket is by screw connection in the closed end of drainage tube lower end
Bottom.
Preferably, the drainage tube is welded as a whole with exhaust gas evacuation pipe.
The utility model has the beneficial effects that: the air guide drainage tube of the utility model design double-layer structure, inside and outside two layers
Drainage tube and gas-guide tube be shaped piece, drainage tube connects exhaust gas evacuation pipe, and gas-guide tube docks gas sampling pipe;In drainage tube
Drainage trough is formed between gas-guide tube, the drain bucket that can guide the rainwater catchment entered by exhaust gas evacuation pipe to bottom completely is received
Collection discharge;The outlet of gas-guide tube simultaneously retains towards horizontal direction, and designs the tube wall length of the top half of gas-guide tube outlet
It is greater than the tube wall length (preventing the rainwater flowed into along exhaust gas evacuation tube wall from falling into gas-guide tube) of lower half portion, prevents substantially
A possibility that gas sampling pipe is penetrated by the rainwater that the vertical outlet end of exhaust gas evacuation pipe enters.
The utility model solves the problems, such as that the exhaust gas discharge of conventional exhaust delivery pipe is unsmooth, both will not influence the expansion of gas
It dissipates, guarantees the treatment effeciency of exhaust gas, and there is good water-resistant performance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Wherein: 1- gas sampling pipe, 2- air guide drainage tube, 21- gas-guide tube, 22- drainage tube, 3- exhaust gas evacuation pipe, 4- draw
Chute, 5- drain bucket, 6- drainpipe, 7- flange.
Specific embodiment
The utility model is described further with reference to the accompanying drawing:
A kind of exhaust pipe with rainproof function shown in referring to Fig.1, comprising: gas sampling pipe 1, air guide drainage tube
2, exhaust gas evacuation pipe 3 and drain bucket 5.
In the present embodiment, one end of the gas sampling pipe 1 is goed deep into exhaust air chamber, gives up caused by collection work process
Gas, the other end of gas sampling pipe 1 are straight tube, stretch out outside exhaust air chamber, flange 7 is fixed on the outside of the port.
The air guide drainage tube 2 is the bilayer being made of gas-guide tube 21 and the drainage tube being set in outside gas-guide tube 21 22
Pipe, the gap between gas-guide tube 21 and drainage tube 22 constitute drainage trough 4.
Drainage tube 22 in the present embodiment is adopted as 120 ° of bend pipes, the lower end of drainage tube 22 and the gas sampling pipe 1
Nozzle on the outside of on fixed flange 7 connect, flange 7 is by the lower end face closure of drainage tube 22.
The import of the gas-guide tube 21 flange 7 that passes through same as the outlet of gas sampling pipe 1 is docking together, and gas-guide tube
21 import caliber is consistent with the outlet caliber of gas sampling pipe 1.
Gas-guide tube 21 equally can be 120 ° of bend pipe or other forms, need to only guarantee following characteristics: gas-guide tube 21 goes out
The tube wall length that the tube wall length for the top half that mouth is exported towards horizontal direction, gas-guide tube 21 is greater than lower half portion (prevents
The rainwater flowed into along 3 tube wall of exhaust gas evacuation pipe is fallen into gas-guide tube 21);Between the outer wall and drainage tube 22 of gas-guide tube 21 there are
Enough gaps, preferably, the internal diameter of the drainage tube need the outer diameter 1-5cm greater than gas-guide tube.
The exhaust gas evacuation pipe 3 is similarly bend pipe, and the import of exhaust gas evacuation pipe 3 and the upper end of the drainage tube 22 are welded as
One, the outlet of exhaust gas evacuation pipe 3 is vertically upward.
The drain bucket 5 can the rectangular bucket in position, drain bucket by screw connection in 7 end face of flange of 22 lower end of drainage tube
On, the import of drain bucket 5 is connected to 22 inner cavity of drainage tube, when drainage trough 4 blocks, is removed drain bucket 5 and is dredged.
The outlet of drain bucket 5 is connected with drainpipe 6, collects rainwater drainage and is emitted into ground or rainwater collection pool.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In range.