CN208865414U - A kind of negative pressure recycling exhaust system - Google Patents
A kind of negative pressure recycling exhaust system Download PDFInfo
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- CN208865414U CN208865414U CN201820809183.5U CN201820809183U CN208865414U CN 208865414 U CN208865414 U CN 208865414U CN 201820809183 U CN201820809183 U CN 201820809183U CN 208865414 U CN208865414 U CN 208865414U
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- liquid
- reactor tank
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- negative pressure
- exhaust system
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Abstract
The utility model provides a kind of negative pressure recycling exhaust system, including reactor tank, gas divider, liquid capture device, cyclone separator are respectively arranged in reactor tank from top to bottom, the bottom of reactor tank is provided with sewage draining exit, the top of reactor tank is provided with air outlet, it is provided with discharge pipe at air outlet, is provided with air-introduced machine in discharge pipe；Gas divider includes air inlet pipe and dispersion mouth, and air inlet pipe one end connects boiler smoke, and the other end passes through reaction tank skin and enters reactor tank and be connected with dispersion mouth, and dispersion mouth is located at the liquid level of lye or less；Liquid capture device is located at the liquid level of lye or more；The upper end side of cyclone separator is provided with separator import, and upper end is provided with separator outlet, and separator outlet is communicated with air outlet.The heat recovery and utilization of waste heat is improved the thermal efficiency of boiler by the utility model；System carries out under micro-vacuum state, and equipment manufacturing costs are lower；Suitable for middle and small burn coal boiler and other dedusting decontamination fields, problem of environmental pollution is solved.
Description
Technical field
The utility model belongs to tail gas recycle technical field, recycles exhaust system more particularly, to a kind of negative pressure.
Background technique
With incrementally increasing for pollution pressure, the processing requirement of people's environmental pollution is higher and higher.China is coal
Charcoal production and consumption big country, coal are mainly used as power fuel and power generation and heating.The elements such as carbon, hydrogen, oxygen, nitrogen, sulphur in coal,
The SO generated in combustion process2、NOX、CO2And a large amount of dust is generated, these pollutants especially SO2Pollute to natural environment and
Human health brings very big harm.For large power stations and heating plant due to its concentrate and coal consumption be easy to concentrate greatly into
The purified treatment of row flue gas.But for middle-size and small-size heating boiler, due to its dispersion and Coal-fired capacity is relatively low so being difficult to carry out
I.e. reliable and economic processing and purification.
Summary of the invention
In view of this, the utility model is directed to a kind of negative pressure recycling exhaust system, heat in exhaust gas is carried out again
It utilizes, and has purified exhaust gas, structure is simple, easy to maintain.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of negative pressure recycles exhaust system, including reactor tank, be respectively arranged with from top to bottom in reactor tank gas divider,
Liquid capture device, cyclone separator, the bottom of reactor tank are provided with sewage draining exit, and the top of reactor tank is provided with air outlet, outlet air
It is provided with discharge pipe at mouthful, is provided with air-introduced machine in discharge pipe；
Gas divider includes air inlet pipe and dispersion mouth, and air inlet pipe one end connects boiler smoke, and the other end passes through reactor tank
Wall enters reactor tank and is connected with dispersion mouth, and dispersion mouth is located at the liquid level of lye hereinafter, dispersion mouth is provided with several ventholes；
Liquid capture device is located at the liquid level of lye or more；
The upper end side of cyclone separator is provided with separator import, and upper end is provided with separator outlet, separator outlet
It is communicated with air outlet.
Further, further include return water heat exchanger, return water heat exchanger between gas divider and liquid capture device, and
Hereinafter, one end of return water heat exchanger is connected with boiler blow-down water, the other end is connected liquid level positioned at lye with boiler water tank.
Further, active carbon adsorber is provided in discharge pipe and positioned at air-introduced machine close to the side of air outlet.
Further, air inlet pipe enters one section of reactor tank for air inlet pipe horizontal segment, is provided with silk on air inlet pipe horizontal segment
Net, silk screen are obliquely installed, the lower section of air inlet pipe horizontal segment and be located at silk screen below be provided with dust-storage chamber.
It further, further include air heat exchanger, discharge pipe includes discharge pipe vertical section and discharge pipe horizontal segment, discharge pipe
Vertical section is connect with air outlet, and air heat exchanger is arranged in discharge pipe vertical section, and air heat exchanger is obliquely installed, and along sky
The liquid that gas heat exchanger outer wall flows down enters the liquid collecting room positioned at reactor tank upper end.
Further, separator drain pipe is arranged in the lower end of cyclone separator, and separator drain pipe passes through liquid capture device
And lye, it is pierced by the tank bottom of reactor tank, cesspool liquid being emitted into below reactor tank.
Further, liquid collecting room lower end is provided with liquid collecting room's drain pipe, and liquid collecting room's drain pipe passes through liquid capture device and alkali
Liquid is pierced by the tank bottom of reactor tank, cesspool liquid being emitted into below reactor tank.
Further, separator drain pipe lower end is folded upward at, and the upper end in exit is hinged with baffle.
Further, liquid collecting room's drain pipe lower end is folded upward at, and the upper end in exit is hinged with baffle.
Further, dispersion mouth becomes larger upward and close to the bore of opening.
Working principle:
Boiler smoke passes through silk screen filter by pipeline first and falls large dust particle, flows into large dust particle by gravity and stores up
It periodically discharges dirt room.Boiler smoke is uniformly distributed air-flow by the gas divider being immersed in lye, is allowed to abundant and lye
Contact, removes chalk dust removing and acid contaminant.Dust and some of the contaminants are deposited on the bottom of reactor tank, and regular by sewage draining exit
It is expelled to cesspool and replacement lye.Blowdown butterfly valve is provided at sewage draining exit.
Return water heat exchanger is provided with since the temperature of boiler smoke is generally at 200 DEG C or more, abundant with lye in lye
Also heat is taken out of 70~80 DEG C (depending on lye volumes and flue gas flow) when mixing.This heat passes through return water heat exchanger again
Swap out the thermal efficiency for going boiler water tank to improve boiler for heating boiler return water.Moisture after depickling dedusting passes through liquid capture device
Collide separation therewith, separates big quantity of fluid and prevents lye from flashing.Gas enters cyclonic separation by separator import
Device is further separated out liquid and dust.Dust liquid separated from cyclone separator etc. passes through separator drain pipe stream
Out.
Due to using air-introduced machine, therefore this internal system is in micro-vacuum state.Separator drain pipe lower end exit and
The baffle in liquid collecting room's drain pipe lower end exit is closed under the action of tiny structure, is formed at baffle due to gravity when liquid
Baffle opens the automatic outflow such as liquid when pressure is greater than negative pressure, and when being less than negative pressure, baffle is closed, to realize automatic drain
Function.
The gas come out from cyclone separator is upwardly into air heat exchanger, and air heat exchanger is placed using tilting, due to
Outdoor fresh air temperature is lower, and saturated water when exchanging heat with hot gas in hot gas will be precipitated, and along air heat exchanger outer wall
Flow to liquid collecting room.The indoor liquid of liquid collecting is automatically drained out along liquid collecting drain pipe.Flue gas after heat exchange passes through active carbon adsorber mistake
It filters off and removes untreated complete gas pollutant.The finally flue gas after air-introduced machine discharge is purification.
Compared with the existing technology, negative pressure recycling exhaust system described in the utility model has the advantage that
Negative pressure described in the utility model recycles exhaust system, passes through inlet air preheating and waste heat from tail gas recovery process
Originally the heat as waste heat discharge is utilized, the thermal efficiency of boiler is improved；Only one electrical equipment of whole system
That is air-introduced machine, low energy consumption and increases substantially heating efficiency；System carries out under micro-vacuum state, and equipment manufacturing costs are relatively
It is low；Suitable for middle and small burn coal boiler and other dedusting decontamination fields, problem of environmental pollution is solved.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is the simple structure schematic diagram that negative pressure described in the utility model embodiment recycles exhaust system；
Fig. 2 is the top view for dispersing mouth described in the utility model embodiment；
Fig. 3 is the partial enlarged view of separator drain pipe lower end described in the utility model embodiment.
Description of symbols:
1- reactor tank；2- liquid capture device；3- cyclone separator；301- separator import；302- separator outlet；303-
Separator drain pipe；4- sewage draining exit；5- air outlet；6- discharge pipe；7- air-introduced machine；8- air inlet pipe；9- disperses mouth；10- return water changes
Hot device；11- active carbon adsorber；12- silk screen；13- dust-storage chamber；14- air heat exchanger；15- liquid collecting room；1501- liquid collecting room row
Liquid pipe；16- cesspool；17- baffle.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1-3, a kind of negative pressure recycles exhaust system, including reactor tank 1, set respectively from top to bottom in reactor tank 1
Be equipped with gas divider, liquid capture device 2, cyclone separator 3, the bottom of reactor tank 1 is provided with sewage draining exit 4, reactor tank 1 it is upper
Portion is provided with air outlet 5, and discharge pipe 6 is provided at air outlet 5, air-introduced machine 7 is provided in discharge pipe 6；
Gas divider includes air inlet pipe 8 and dispersion mouth 9, and 8 one end of air inlet pipe connects boiler smoke, and the other end passes through reaction
Tank skin enter reactor tank 1 and with dispersion mouth 9 be connected, dispersion mouth 9 be located at lye liquid level hereinafter, disperse mouth 9 be provided with it is several
Venthole；
Liquid capture device 2 is located at the liquid level of lye or more；
The upper end side of cyclone separator 3 is provided with separator import 301, and upper end is provided with separator outlet 302, separation
Device outlet 302 is communicated with air outlet 5.
Above-mentioned further includes return water heat exchanger 10, return water heat exchanger 10 between gas divider and liquid capture device 2, and
Hereinafter, one end of return water heat exchanger 10 is connected with boiler blow-down water, the other end is connected liquid level positioned at lye with boiler water tank.
The side of air outlet 5 is provided with active carbon adsorber 11 in above-mentioned discharge pipe 6 and positioned at air-introduced machine 7.
Above-mentioned air inlet pipe 8 enters one section of reactor tank 1 for air inlet pipe horizontal segment, is provided with silk screen on air inlet pipe horizontal segment
12, silk screen 12 is obliquely installed, the lower section of air inlet pipe horizontal segment and be located at silk screen 12 lower section be provided with dust-storage chamber 13.
Above-mentioned further includes air heat exchanger 14, and discharge pipe 6 includes discharge pipe vertical section and discharge pipe horizontal segment, and discharge pipe is perpendicular
Straight section is connect with air outlet 5, and air heat exchanger 14 is arranged in discharge pipe vertical section, and air heat exchanger 14 is obliquely installed, and suitable
The liquid that flows down of 14 outer wall of air heat exchanger enter the liquid collecting room 15 positioned at 1 upper end of reactor tank.
Separator drain pipe 303 is arranged in the lower end of above-mentioned cyclone separator 3, and separator drain pipe 303 passes through liquid capture
Device 2 and lye are pierced by the tank bottom of reactor tank 1, and liquid is emitted into the cesspool 16 of 1 lower section of reactor tank.
Above-mentioned 15 lower end of liquid collecting room is provided with liquid collecting room's drain pipe 1501, and liquid collecting room's drain pipe 1501 passes through liquid capture device
2 and lye, it is pierced by the tank bottom of reactor tank 1, liquid is emitted into the cesspool 16 of 1 lower section of reactor tank.
Above-mentioned 303 lower end of separator drain pipe is folded upward at, and the upper end in exit is hinged with baffle 17.
Above-mentioned 1501 lower end of liquid collecting room's drain pipe is folded upward at, and the upper end in exit is hinged with baffle 17.
Above-mentioned dispersion mouth 9 becomes larger upward and close to the bore of opening.
Boiler smoke passes through silk screen 12 by pipeline first and filters out large dust particle, flows into large dust particle by gravity
Dust-storage chamber 13 periodically discharges.Boiler smoke is uniformly distributed air-flow by the gas divider being immersed in lye, be allowed to sufficiently with
Lye contact, removes chalk dust removing and acid contaminant.Dust and some of the contaminants are deposited on the bottom of reactor tank 1, and pass through blowdown
Mouth 4 is periodically expelled to cesspool and replacement lye.Blowdown butterfly valve is provided at sewage draining exit 4.
Return water heat exchanger 10 is provided with since the temperature of boiler smoke is generally at 200 DEG C or more in lye, is filled with lye
Divide and also takes heat 70~80 DEG C (depending on lye volumes and flue gas flow) out of when mixing.This heat is exchanged heat by return water again
Device 10, which swaps out, removes the thermal efficiency of boiler water tank raising boiler for heating boiler return water.Moisture after depickling dedusting is caught by liquid
It catches device 2 to collide therewith separation, separate big quantity of fluid and prevents lye from flashing.Gas is entered by separator import 302
Cyclone separator 3, is further separated out liquid and dust.The dust liquid etc. separated from cyclone separator 3 passes through separation
Device drain pipe 303 flows out.
Due to using air-introduced machine 7, therefore this internal system is in micro-vacuum state.The outlet of 303 lower end of separator drain pipe
Place and the baffle 17 in 1501 lower end exit of liquid collecting room's drain pipe are closed under the action of tiny structure, when liquid at baffle 17 by
Baffle 17 opens the automatic outflow such as liquid when the pressure that gravity is formed is greater than negative pressure, and when being less than negative pressure, baffle 17 is closed, from
And realize the function of automatic drain.
The gas come out from cyclone separator 3 is upwardly into air heat exchanger 14, and air heat exchanger 14 is placed using tilting,
Since outdoor fresh air temperature is lower, saturated water when exchanging heat with hot gas in hot gas will be precipitated, and along air heat exchanger
14 outer walls flow to liquid collecting room 15.Liquid in liquid collecting room 15 is automatically drained out along liquid collecting room's drain pipe 1501.Flue gas warp after heat exchange
It crosses the filtering of 11 device of activated carbon adsorption and removes untreated complete gas pollutant.The finally flue gas after the discharge of air-introduced machine 7 is purification.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of negative pressure recycles exhaust system, it is characterised in that: including reactor tank (1), set respectively from top to bottom in reactor tank (1)
It is equipped with gas divider, liquid capture device (2), cyclone separator (3), the bottom of reactor tank (1) is provided with sewage draining exit (4), instead
It answers the top of tank (1) to be provided with air outlet (5), is provided at air outlet (5) discharge pipe (6), be provided with air inducing in discharge pipe (6)
Machine (7)；
Gas divider includes air inlet pipe (8) and dispersion mouth (9), and air inlet pipe (8) one end connects boiler smoke, and the other end passes through anti-
Tank skin is answered to enter reactor tank (1) and be connected with dispersion mouth (9), dispersion mouth (9) is located at the liquid level of lye hereinafter, dispersion mouth (9)
It is provided with several ventholes；
Liquid capture device (2) is located at the liquid level of lye or more；
The upper end side of cyclone separator (3) is provided with separator import (301), and upper end is provided with separator outlet (302), point
It is communicated from device outlet (302) with air outlet (5).
2. negative pressure according to claim 1 recycles exhaust system, it is characterised in that: further include return water heat exchanger (10), return
Water- to-water heat exchanger (10) is located between gas divider and liquid capture device (2), and is located at the liquid level of lye hereinafter, return water heat exchanger
(10) one end is connected with boiler blow-down water, and the other end is connected with boiler water tank.
3. negative pressure according to claim 1 recycles exhaust system, it is characterised in that: in discharge pipe (6) and be located at air-introduced machine
(7) side close to air outlet (5) is provided with active carbon adsorber (11).
4. negative pressure according to claim 1 recycles exhaust system, it is characterised in that: air inlet pipe (8) enters reactor tank (1)
One section is air inlet pipe horizontal segment, is provided with silk screen (12) on air inlet pipe horizontal segment, silk screen (12) is obliquely installed, air inlet pipe horizontal segment
Lower section and be located at silk screen (12) below be provided with dust-storage chamber (13).
5. negative pressure according to claim 1 recycles exhaust system, it is characterised in that: further include air heat exchanger (14), out
Air hose (6) includes discharge pipe vertical section and discharge pipe horizontal segment, and discharge pipe vertical section is connect with air outlet (5), air heat exchanger
(14) it is arranged in discharge pipe vertical section, air heat exchanger (14) is obliquely installed, and is flowed down along air heat exchanger (14) outer wall
Liquid enter positioned at reactor tank (1) upper end liquid collecting room (15).
6. negative pressure according to claim 1 recycles exhaust system, it is characterised in that: the lower end of cyclone separator (3) is arranged
Separator drain pipe (303), separator drain pipe (303) pass through liquid capture device (2) and lye, are pierced by the tank of reactor tank (1)
Bottom, the cesspool (16) liquid being emitted into below reactor tank (1).
7. negative pressure according to claim 1 recycles exhaust system, it is characterised in that: liquid collecting room (15) lower end is provided with liquid collecting
Room drain pipe (1501), liquid collecting room's drain pipe (1501) pass through liquid capture device (2) and lye, are pierced by the tank bottom of reactor tank (1),
The cesspool (16) liquid being emitted into below reactor tank (1).
8. negative pressure according to claim 6 recycles exhaust system, it is characterised in that: separator drain pipe (303) lower end to
Upper bending, and the upper end in exit is hinged with baffle (17).
9. negative pressure according to claim 7 recycles exhaust system, it is characterised in that: liquid collecting room's drain pipe (1501) lower end to
Upper bending, and the upper end in exit is hinged with baffle (17).
10. negative pressure according to claim 1 recycles exhaust system, it is characterised in that: dispersion mouth (9) is upward and close to opening
The bore at place becomes larger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820809183.5U CN208865414U (en) | 2018-05-28 | 2018-05-28 | A kind of negative pressure recycling exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820809183.5U CN208865414U (en) | 2018-05-28 | 2018-05-28 | A kind of negative pressure recycling exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208865414U true CN208865414U (en) | 2019-05-17 |
Family
ID=66461873
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820809183.5U Expired - Fee Related CN208865414U (en) | 2018-05-28 | 2018-05-28 | A kind of negative pressure recycling exhaust system |
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|---|---|
| CN (1) | CN208865414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108579355A (en) * | 2018-05-28 | 2018-09-28 | 内蒙古师范大学 | A kind of negative pressure recycling exhaust system |
-
2018
- 2018-05-28 CN CN201820809183.5U patent/CN208865414U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108579355A (en) * | 2018-05-28 | 2018-09-28 | 内蒙古师范大学 | A kind of negative pressure recycling exhaust system |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 Termination date: 20200528 |