CN205683829U - Urea liquid proportioning tank for SNCR flue gas denitrification system - Google Patents
Urea liquid proportioning tank for SNCR flue gas denitrification system Download PDFInfo
- Publication number
- CN205683829U CN205683829U CN201620632181.4U CN201620632181U CN205683829U CN 205683829 U CN205683829 U CN 205683829U CN 201620632181 U CN201620632181 U CN 201620632181U CN 205683829 U CN205683829 U CN 205683829U
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- tank body
- urea liquid
- tank
- steam inlet
- flue gas
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
This utility model relates to denitrating flue gas field, particularly relates to a kind of urea liquid proportioning tank for SNCR flue gas denitrification system.A kind of urea liquid proportioning tank for SNCR flue gas denitrification system, including tank body, carbamide import, water inlet, steam inlet, urea liquid outlet, refluxing opening and sewage draining exit, described carbamide import is square, and connects side's bucket, be provided with filter screen between carbamide import and Fang Dou under carbamide import；Described steam inlet is fixed on the angle steel being welded on tank base by U-bolt, the connecting line of steam inlet includes steam inlet mother pipe and multiple arms being arranged on below steam inlet mother's pipe, the first end cap, steam inlet mother Guan Shangyou 2 row's arm are welded in the end of steam inlet mother's pipe.This utility model stirs, and can be dissolved by urea granules and make the urea liquid that concentration is 20%～50%, it is to avoid the urea crystals produced because temperature is low, provide the urea liquid reducing agent of a kind of steady concentration for SNCR flue gas denitrification system.
Description
Technical field
This utility model relates to denitrating flue gas field, particularly relates to a kind of carbamide for SNCR flue gas denitrification system molten
Liquid proportioning tank.
Background technology
At present, NO in boiler exhaust gasXThe main selective noncatalytic reduction of control technology (SNCR), selective catalysis
Reducing process (SCR) and SNCR-SCR mixing denitration technology.These technology are to utilize reducing agent and NOXReaction, reaches denitration
Purpose.The primary reducing agent of denitration reaction has carbamide, ammonia and liquefied ammonia.Wherein, due to carbamide have that security performance is high, transport,
Store, use the advantages such as process is simple, therefore be widely used in denitrating system.
SNCR denitration technology with carbamide as reducing agent, its main technique is to be joined at urea liquid by the urea granules of solid
Ratio is dissolved into the carbamide concentrated solution that concentration is 50% in tank, carbamide concentrated solution is stored up in delivery pump is delivered to urea liquid storage tank
Depositing, the urea liquid in urea liquid storage tank is delivered to urea solution metering module through dilution pumps, comes with the conveying of dilution water system
Dilution water mix in thinning tank, be diluted to the carbamide weak solution that concentration is 5%～10%, then through equal sub-module, by carbamide
Solution distribution, to each spray gun, injects urea solution into burner hearth by spray gun, with the NO in burner hearthXCarry out denitration reaction.
Traditional urea liquid proportioning process is all according to different needs, operator manual carry out weighing, proportioning,
Mix, stir and complete.Traditional proportioning technique exists that efficiency is low, cost of labor is high, stirring dynamics not, stir uneven, temperature
Spend low, have the problems such as urea crystal separates out, urea concentration is uncertain, properly functioning and de-to denitrating system of these problems
Certain impact that nitre efficiency all causes.
Utility model content
Problem to be solved in the utility model is: traditional urea liquid proportioning tank efficiency is low, it is uneven to stir, and has carbamide
Crystal separates out, the problems such as urea concentration is uncertain, it is provided that a kind of urea liquid proportioning tank for SNCR flue gas denitrification system.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is:
A kind of urea liquid proportioning tank for SNCR flue gas denitrification system, including tank body, carbamide import, water inlet, steaming
The outlet of vapor inlet, urea liquid, refluxing opening and sewage draining exit, described carbamide import is square, and connects side's bucket, urine under carbamide import
It is provided with filter screen between element import and Fang Dou；Described steam inlet is fixed on the angle steel being welded on tank base by U-bolt
On, the connecting line of steam inlet includes steam inlet mother pipe and multiple arms being arranged on below steam inlet mother's pipe, steam
The first end cap, steam inlet mother Guan Shangyou 2 row's arm are welded in the end of import mother's pipe.
As preferably, tank body is cylinder；Carbamide import, water inlet are positioned at tank body top diverse location；Refluxing opening is positioned at
Tank body upper lateral part；The outlet of steam inlet, urea liquid, sewage draining exit are positioned at tank body following side；Under urea liquid outlet and sewage draining exit
Tank base is close in side.
As preferably, becoming 120 degree of angles between 2 described row's arms, the angle of every arm distance vertical direction is 60
Degree, the end that aperture and arm are distributed on every arm is welded with the second end cap.
As preferably, tank body is additionally provided with densitometer interface, radar level gauge interface, magnetic flap level gauge interface and temperature
Meter interface, densitometer interface stretches in tank body from tank body top, presses close to tank bottoms at the bottom of its pipe；Radar level gauge interface is from tank body top
Stretch in tank body, press close to tank bottoms at the bottom of its pipe；Magnetic flap level gauge interface is positioned at tank body side；Thermometer boss is positioned on the downside of tank body
Portion.
As preferably, described magnetic flap level gauge interface has 2, and one is positioned at tank body upper side, and another is positioned at tank
Body downside.
As preferably, tank body top center is provided with electric mixing device, and described electric mixing device includes being fixed on
Stirring motor on one channel-section steel, the second channel-section steel and the stirring slurry being fixed on the output shaft of stirring motor, stirring slurry is from tank body top
Portion stretches in tank body, and described first channel-section steel, the second channel-section steel are welded in tank body top；It is welded with hanger on first channel-section steel.
As preferably, tank body top is provided with drain, manhole, standby mouth.
As preferably, being provided with at least two-layer flow-disturbing dish in tank body, flow-disturbing dish is provided with spaced triangular shaped elastomeric leaf
Sheet, the triangular shaped elastomeric blade stagger of two-layer flow-disturbing dish is arranged.For ensureing to provide the urea liquid that concentration is stable, at tank to system
The internal flow-disturbing dish that is additionally arranged, the modern design of flow-disturbing dish, have employed the triangular shaped elastomeric blade of elastic construction, it utilizes feed water flow
Speed carries out flow-disturbing, promotes the mixing up and down of liquid in tank body, it is achieved that the function of unpowered flow-disturbing.
This utility model is that SNCR flue gas denitrification system provides a kind of urea liquid proportioning tank, this proportioning tank access system
After, urea granules can be dissolved into the carbamide concentrated solution that concentration is 50%.Owing to this proportioning tank is with electric mixing device, can make
Urea liquid stirs, and improves efficiency, reduces cost of labor.Vapor interface on this proportioning tank utilizes boiler to produce
Steam, as thermal source, has not only saved energy consumption, it also avoid the crystallization of urea liquid, makes urea concentration maintain stable
50%, it is to avoid whole denitrating system is impacted.
Accompanying drawing explanation
Fig. 1 is semi-section structural representation of the present utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structural representation of steam inlet in Fig. 1；
Fig. 4 is the left view of Fig. 3 steam inlet；
Fig. 5 is the schematic layout pattern of embodiment 2 two-layer flow-disturbing dish；
Label declaration: 1, tank body；2, electric mixing device；3, carbamide import；4, water inlet；5, steam inlet； 6、
Urea liquid exports；7, drain；8, densitometer interface；9, radar level gauge interface；10, magnetic flap level gauge interface；
11, thermometer boss；12, refluxing opening；13, sewage draining exit；14, manhole；15, standby mouth；16, the first channel-section steel；17, second
Channel-section steel；18, hanger；19, flow-disturbing dish；20, triangular shaped elastomeric blade；
51, steam inlet mother pipe；52, arm；53, the first end cap；54, angle steel；55, U-bolt；56, flange；
57, square plate；58, the second end cap.
Detailed description of the invention
In order to further illustrate structure of the present utility model, it is further described below in conjunction with the accompanying drawings.
A kind of urea liquid proportioning tank for SNCR flue gas denitrification system as shown in Figure 1 and Figure 2, including tank body 1, urine
Element import 3, water inlet 4, steam inlet 5, urea liquid outlet 6, refluxing opening 12 and sewage draining exit 13, described carbamide import 3 in
Square, one side stretches out and forms a movable lid, can be closed in the case of carbamide import does not uses,
Connect side's bucket under carbamide import, between carbamide import and Fang Dou, be provided with filter screen；Described steam inlet 5 is solid by U-bolt 55
Due to being welded on the angle steel 54 bottom tank body 1, the connecting line of steam inlet 5 includes steam inlet mother's pipe 51 and multiple installation
Arm 52 below steam inlet mother's pipe, the first end cap 53, steam inlet mother's pipe 51 are welded in the end of steam inlet mother's pipe 51
On have 2 row's arms 52, see Fig. 3 and Fig. 4.120 degree of angles, every arm distance vertical direction is become between 2 described row's arms 52
Angle be 60 degree, the end that aperture and arm are distributed on every arm is welded with the second end cap 58.The import of steam inlet 5
End is welded with flange 56, and the bottom welding of angle steel 54 has square plate 57.
Tank body 1 is in cylinder；Carbamide import 3, water inlet 4 are positioned at tank body 1 top diverse location；Refluxing opening 12 is positioned at tank body
1 upper lateral part；Steam inlet 5, urea liquid outlet 6, sewage draining exit 13 are positioned at tank body 1 following side；Urea liquid outlet 6 and sewage draining exit
13 downsides are close to bottom tank body 1.Be additionally provided with densitometer interface 8 on tank body, radar level gauge interface 9, magnetic flap level gauge connect
Mouth 10 and thermometer boss 11, densitometer interface 8 stretches in tank body 1 from tank body 1 top, presses close to tank bottoms at the bottom of its pipe；Radar level
Meter interface 9 stretches in tank body 1 from tank body 1 top, presses close to tank bottoms at the bottom of its pipe；Magnetic flap level gauge interface 10 is positioned at tank body 1 side；
Thermometer boss 11 is positioned at tank body 1 following side.Tank body 1 top is provided with drain 7, manhole 14, standby mouth 15.Described magnetic turnover panel
Interface of the level gauge 10 has 2, and one is positioned at tank body 1 upper side, and another is positioned at tank body 1 downside.
Tank body top center is provided with electric mixing device 2, and described electric mixing device 2 includes being fixed on the first channel-section steel
16, the stirring motor on the second channel-section steel 17 and be fixed on the output shaft of stirring motor stirring slurry, stirring slurry from tank body top
Stretching in tank body, described first channel-section steel the 16, second channel-section steel 17 is welded in tank body 1 top；It is welded with hanger 18 on first channel-section steel 16.
First channel-section steel 16 is two, is arranged in parallel, and the second channel-section steel 17 is welded in the centre of two first channel-section steels 16, electric mixing device 2
It is fixed on the second channel-section steel 17.
After this utility model access system, urea granules can be dissolved and make the carbamide concentrated solution that concentration is 50%.Carbamide is dense
Solution stores in delivery pump is delivered to urea liquid storage tank, and the urea liquid in urea liquid storage tank is delivered to through dilution pumps
Urea solution metering module, the dilution water come with the conveying of dilution water system mixes in thinning tank, and being diluted to concentration is 5%～10%
Carbamide weak solution, then through equal sub-module, by urea liquid distribution to each spray gun, inject urea solution into stove by spray gun
NO in thorax, with burner hearthXCarry out denitration reaction.
Through field survey, the urea liquid proportioning tank that this utility model provides, in tank, urea concentration can be stablized
50%, and do not have urea crystal to separate out, this just provides stable reducing agent for denitrating system below, it is ensured that this denitration
The stable operation of system.
Embodiment 2
A kind of urea liquid proportioning tank for SNCR flue gas denitrification system, structure is with embodiment 1, and difference is:
Be provided with in described tank body two-layer between the upper and lower every flow-disturbing dish 19, two-layer flow-disturbing dish position in the body is just by intrinsic sky
Between trisection, structure is shown in that Fig. 5, flow-disturbing dish are provided with spaced triangular shaped elastomeric blade 20, each triangular shaped elastomeric blade 20
Being not connected to towards center, under water impact, the tip of each triangular shaped elastomeric blade is released state, the triangle of two-layer flow-disturbing dish
Shape spring leaf is crisscross arranged.Triangular shaped elastomeric blade 20 can arrange multiple according to demand, and general 4-8 sheet is optimal.
This utility model stirs, and can be dissolved by urea granules and make the urea liquid that concentration is 20%～50%, it is to avoid
The urea crystals produced because temperature is low, provides the urea liquid reduction of a kind of steady concentration for SNCR flue gas denitrification system
Agent.
Finally, in addition it is also necessary to it is noted that above to SNCR flue gas denitrification system urea liquid provided by the utility model
Proportioning tank is described in detail.Obviously, this utility model is not limited to above example, it is also possible to have the deformation of many.?
Without departing from this utility model original on the premise of, those of ordinary skill can also carry out some improvement to this utility model and repair
Decorations, these are all considered as protection domain of the present utility model.
Claims (7)
1. for a urea liquid proportioning tank for SNCR flue gas denitrification system, including tank body (1), carbamide import (3), water inlet
(4), steam inlet (5), urea liquid outlet (6), refluxing opening (12) and sewage draining exit (13), it is characterised in that: described carbamide
Import (3) is square, and connects side's bucket, be provided with filter screen between carbamide import and Fang Dou under carbamide import；Described steam inlet (5)
Being fixed on by U-bolt (55) on the angle steel (54) being welded on tank body (1) bottom, the connecting line of steam inlet (5) includes
Steam inlet mother manages (51) and multiple arm (52) being arranged on below steam inlet mother's pipe, the end of steam inlet mother pipe (51)
Weld the first end cap (53), steam inlet mother pipe (51) has 2 row's arms (52).
Urea liquid proportioning tank for SNCR flue gas denitrification system the most according to claim 1, it is characterised in that: tank body
(1) in cylinder；Carbamide import (3), water inlet (4) are positioned at tank body (1) top diverse location；Refluxing opening (12) is positioned at tank body
(1) upper lateral part；Steam inlet (5), urea liquid outlet (6), sewage draining exit (13) are positioned at tank body (1) following side；Urea liquid goes out
Tank body (1) bottom is close in mouth (6) and sewage draining exit (13) downside.
Urea liquid proportioning tank for SNCR flue gas denitrification system the most according to claim 1, it is characterised in that: described
2 row's arms (52) between become 120 degree angles, the angle of every arm distance vertical direction is 60 degree, distribution on every arm
The end having aperture and arm is welded with the second end cap (58).
Urea liquid proportioning tank for SNCR flue gas denitrification system the most according to claim 1, it is characterised in that: tank body
On be additionally provided with densitometer interface (8), radar level gauge interface (9), magnetic flap level gauge interface (10) and thermometer boss (11),
Densitometer interface (8) stretches in tank body (1) from tank body (1) top, presses close to tank bottoms at the bottom of its pipe；Radar level gauge interface (9) is from tank
Body (1) top is stretched in tank body (1), presses close to tank bottoms at the bottom of its pipe；Magnetic flap level gauge interface (10) is positioned at tank body (1) side；Temperature
Degree meter interface (11) is positioned at tank body (1) following side.
Urea liquid proportioning tank for SNCR flue gas denitrification system the most according to claim 4, it is characterised in that: described
Magnetic flap level gauge interface (10) have 2, one is positioned at tank body (1) upper side, and another is positioned at tank body (1) downside.
Urea liquid proportioning tank for SNCR flue gas denitrification system the most according to claim 1, it is characterised in that: tank body
Top center is provided with electric mixing device (2), described electric mixing device (2) include being fixed on the first channel-section steel (16), second
Stirring motor on channel-section steel (17) and the stirring slurry being fixed on the output shaft of stirring motor, stirring slurry stretches into tank from tank body top
Internal, described first channel-section steel (16), the second channel-section steel (17) are welded in tank body (1) top；First channel-section steel is welded with hanger on (16)
(18).
Urea liquid proportioning tank for SNCR flue gas denitrification system the most according to claim 1, it is characterised in that: tank body
(1) top is provided with drain (7), manhole (14), standby mouth (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632181.4U CN205683829U (en) | 2016-06-21 | 2016-06-21 | Urea liquid proportioning tank for SNCR flue gas denitrification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632181.4U CN205683829U (en) | 2016-06-21 | 2016-06-21 | Urea liquid proportioning tank for SNCR flue gas denitrification system |
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| Publication Number | Publication Date |
|---|---|
| CN205683829U true CN205683829U (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620632181.4U Expired - Fee Related CN205683829U (en) | 2016-06-21 | 2016-06-21 | Urea liquid proportioning tank for SNCR flue gas denitrification system |
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| Country | Link |
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| CN (1) | CN205683829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426824A (en) * | 2018-05-29 | 2018-08-21 | 河海大学 | A kind of concentration of salt solution control device that simulation concrete structural environment corrodes |
-
2016
- 2016-06-21 CN CN201620632181.4U patent/CN205683829U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426824A (en) * | 2018-05-29 | 2018-08-21 | 河海大学 | A kind of concentration of salt solution control device that simulation concrete structural environment corrodes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20210621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |