CN206198987U - A kind of absorbent solution induction system for boiler smoke wet denitration - Google Patents
A kind of absorbent solution induction system for boiler smoke wet denitration Download PDFInfo
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- CN206198987U CN206198987U CN201621116703.1U CN201621116703U CN206198987U CN 206198987 U CN206198987 U CN 206198987U CN 201621116703 U CN201621116703 U CN 201621116703U CN 206198987 U CN206198987 U CN 206198987U
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- main line
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- absorbent solution
- induction system
- boiler smoke
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Abstract
The utility model provides a kind of absorbent solution induction system for boiler smoke wet denitration, two branch roads including a main line and parallel connection, the main line includes main line I sections and main line II sections, and I sections of the main line, two branch roads of the parallel connection, II sections of the main line are from left to right sequentially connected with；I sections of left end of the main line is connected to absorbent solution storage device, is provided with an insulation heat tracing pipe；II sections of right-hand member of the main line is connected to injection apparatus, is provided with a flow transmitter, a pressure gauge, a pressure display transformer, a thermometer and an insulation heat tracing pipe；Two branch roads are respectively provided with a filter and a delivery pump.
Description
Technical field
The utility model is related to gas denitrifying technology field, and in particular to a kind of absorption for boiler smoke wet denitration
Agent solution induction system.
Background technology
With the development and the raising of environmental consciousness of Chinese national economy, the air pollution emission standard of China's coal fired power plant
Become year by year tight, exhaustion of nitrogen oxides from coal-fired boiler standard is also increasingly strict.In July, 2011, country promulgated《Thermal power plant's atmosphere pollution
Thing discharge standard (GB 13223-2011)》, it is desirable to existing coal-burning power plant performed nitrogen oxides 100mg/ from 1 day July in 2014
m3Disposal of pollutants concentration limit；In September, 2014, National Development and Reform Committee, Chinese Ministry of Environmental Protection and National Energy Board combine and print and distribute《Coal electricity energy-conservation
Emission reduction is upgraded and transformation action plan (2014-2020)》, it is desirable to coal fired power plant to gas turbine to mark, coal electricity environmental transformation after
Air pollution emission value basically reach discharge of gas turbine value；In March, 2015, propose " to promote combustion in the government work report
Coal-fired plant's minimum discharge is transformed "；In December, 2015,《Implement in full coal-burning power plant's minimum discharge and reducing energy consumption programme of work》In
Related request, indicate that national all power plant's minimum discharge retrofit works are carried out comprehensively.
To meet the transformation requirement of nitrogen oxides minimum discharge, generally require various denitration technologies and be used in combination.In denitration
In technology, wet denitration is relatively easy due to its technique, and denitration efficiency is higher, with more wide application prospect.
The principle of wet denitration technology is that use can dissolve nitrogen oxides or the solution suction that can be reacted with nitrogen oxides
Receive the nitrogen oxides in flue gas, wet flue gas denitration technology mainly includes alkali absorption method, sour absorption process, oxidative absorption method, also
The different classes of technology such as former absorption process.Compared to denitration technologies such as SCR or SNCR, the current research of wet denitration technology is relatively
Few, in China's patent document, the related patent numbers of wet denitration technology are less, the basic tool without each link of wet denitration
Body technique, the accurate measurement conveying technology especially for wet denitration absorbent solution has no report, it would be highly desirable to further grind
Study carefully perfect.
Utility model content
For the deficiency that existing boiler smoke wet denitration technology is present, the purpose of this utility model is to provide one kind can
Real time measure, precise control are realized, and is provided with the boiler wet method denitration absorbent solution induction system of spare duct.
To reach above-mentioned purpose, the utility model uses following technical scheme：
A kind of absorbent solution induction system for boiler smoke wet denitration, including a main line and in parallel two
Branch road, the main line includes main line I sections and main line II sections, I sections of the main line, two branch roads of the parallel connection, the main line
II sections is from left to right sequentially connected with；I sections of left end of the main line is connected to absorbent solution storage device, is provided with an insulation heat tracing
Pipe；II sections of right-hand member of the main line is connected to injection apparatus, be provided with a flow transmitter, a pressure gauge, a pressure display transformer,
One thermometer and an insulation heat tracing pipe；Two branch roads are respectively provided with a filter and a delivery pump.
Further, an electrically-controlled valve is additionally provided with described main line I sections.
Further, a check-valves is also respectively provided with two branch roads, positioned at the right-hand member of delivery pump.
Further, two emptying bypass ball valves are also respectively provided with two branch roads, positioned at the two ends of delivery pump.
Further, two manual ball valves are also respectively provided with two branch roads, positioned at the two ends of branch road.
Further, the flow transmitter, pressure display transformer and thermometer are connected to DCS control systems.
The beneficial effects of the utility model are：
(1) modularization：The relevant main line branch road of absorbent solution and flow transmitter, pressure gauge, pressure are indicated to become
Sending the component set such as device, thermometer, insulation heat tracing pipe, filter, a delivery pump and various valves turns into unified modules, and function is concentrated
Degree is high, and Row control is clear, facilitates engineer applied；
(2) controllability：The system is provided with corresponding discharge, pressure, temperature point, can be with real-time monitoring module dynamic feelings
Condition, absorbent solution flow can be adjusted according to actual needs in time, and controllable degree is high；
(3) security：Two branch roads are provided with, a preparation and a use can be accomplished, can switched in time when breaking down, carried
System run all right high, branch road is provided with filter, emptying bypass ball valve and check-valves, and main line is provided with insulation heat tracing
Pipe, is effectively ensured system safe and reliable operation.
Brief description of the drawings
Fig. 1 is the absorbent solution induction system schematic diagram for boiler smoke wet denitration.
In figure：01-electrically-controlled valve；02nd, 08,09,15-manual ball valve；03rd, 10-filter；04th, 07,11,14-emptying
Bypass ball valve；05th, 12-delivery pump；06th, 13-check-valves；16-flow transmitter；17-pressure gauge；18-pressure indicates to become
Send device；19-thermometer；20th, 21-insulation heat tracing pipe；22-main line I sections；23rd, 24-absorbent solution branch road；25- is responsible for
Road II sections.
Specific embodiment
To enable features described above of the present utility model and advantage to become apparent, special embodiment below, and coordinate appended
Figure is described in detail below.
The present embodiment provides a kind of absorbent solution induction system for boiler smoke wet denitration, as shown in figure 1, bag
A main line and two branch roads 23,24 are included, the main line includes main line I sections 22 and main line II sections 25, and main line I sections 22 left
End is connected to absorbent solution storage device, is provided with insulation heat tracing pipe 20 and electrically-controlled valve 01, right-hand member connection two branch in parallel
Road, two branch roads 23,24 set gradually respectively manual ball valve 02,09, filter 03,10, emptying bypass ball valve 04,11, it is defeated
Pump 05,12, check-valves 06,13, emptying bypass ball valve 07,14 and manual ball valve 08,15 are sent, then merges II sections of main line of connection
25, main line II sections 25 is disposed with flow transmitter 16, pressure gauge 17, pressure display transformer 18, thermometer 19 and protects
Warm heat tracing pipe 21, the spraying system of subsequent main line II sections 25 access boiler smoke wet denitration system.
The start and stop of the system carry out remote control by signal.During operation, main line electrically-controlled valve 01 and a branch road are opened
23 valve and delivery pump 05, while ensuring valve and the conveying of branch road emptying bypass ball valve 04,07 and another branch road 24
Electrically-controlled valve 01 that pump 12 is set all in closed mode, absorbent solution flow and loine pressure by main line, branch road 23 set
The delivery pump 05 put carries out precise control.Main line II sections 25 flow transmitter 16, the pressure display transformer 18, temperature of setting
Meter 19 is connected with DCS control systems, temperature signal and pressure that the flow signal of the monitoring of flow transmitter 16, thermometer 19 are monitored
The pressure of the monitoring of power meter 17 simultaneously passes through the pressure signal of the conversion of pressure display transformer 18 by the instruction of flow transmitter 16, pressure
Transmitter 18, thermometer 19 are transmitted to DCS control systems, absorbent solution flow can according to absorbent expense and concentration,
The many index such as boiler discharged nitrous oxides situation and boiler load change carries out real-time precise control, and meeting Practical Project will
Ask.When stopping transport, the delivery pump 05 of branch road 23 is first shut off, is then turned off main line electrically-controlled valve 01, emptying bypass is opened afterwards
Ball valve 04,07 is emptied, and emptying is turned off after finishing, and simultaneously closes off the valve of branch road 23.
The advantage of two branch roads that the system is set is that a preparation and a use during normal operation accident event occurs in certain branch road
Barrier or needs are when being overhauled, and can switch and convey the switching throwing that pump discharge carries out between branch road by controlling brancher respective valves
Fortune, ensures the continuous operation of wet denitration system.
The filter that branch road is set can filter absorption of the impurity in agent solution, it is to avoid the corrosive wear of upstream device occur
And block.Check-valves can prevent the absorbent solution in start and stop stage and handoff leg from flowing backwards.Emptying bypass ball valve can be
The absorbent solution remained in timely discharge line during stoppage in transit, extends pipeline service life.Main line imports and exports what is set
Two insulation heat tracing pipes, heat tracing heating amount is changed by real-time monitoring absorbent solution temperature, and absorbent solution temperature is protected
Constant level is held, Crystallization Plugging is effectively prevented.
It is noted that the left and right directions being related in specification of the present utility model, claims is intended merely to just
In narration, the restrictive condition in direction is not intended as；Quantity " one " before each instrument being related to only to facilitate narration, not
As the restrictive condition of quantity, it should thus be appreciated that.
The beneficial effects of the utility model are, with modularization：By absorbent solution relevant main line branch road and flow
The groups such as transmitter, pressure gauge, pressure display transformer, thermometer, insulation heat tracing pipe, filter, a delivery pump and various valves
Part is integrated into unified modules, and function intensity is high, and Row control is clear, facilitates engineer applied；With controllability：The system sets
Corresponding discharge, pressure, temperature point are equipped with, can be with real-time monitoring module current intelligence, absorbent solution flow can root in time
It is adjusted according to being actually needed, controllable degree is high；With security：Two branch roads are provided with, a preparation and a use can be accomplished, in hair
Can in time switch during raw failure, improve system run all right, branch road is provided with filter, emptying bypass ball valve and non-return
Valve, main line is provided with insulation heat tracing pipe, and system safe and reliable operation is effectively ensured.
Claims (6)
1. a kind of absorbent solution induction system for boiler smoke wet denitration, it is characterised in that including a main line and
Two branch roads in parallel, the main line includes main line I sections and main line II sections, I sections of the main line, two branch of the parallel connection
Road, II sections of the main line are from left to right sequentially connected with；I sections of left end of the main line is connected to absorbent solution storage device, is provided with
One insulation heat tracing pipe；II sections of right-hand member of the main line is connected to injection apparatus, is provided with a flow transmitter, a pressure gauge, a pressure
Display transformer, a thermometer and an insulation heat tracing pipe；Two branch roads are respectively provided with a filter and a delivery pump.
2. the absorbent solution induction system for boiler smoke wet denitration according to claim 1, it is characterised in that
An electrically-controlled valve is additionally provided with described main line I sections.
3. the absorbent solution induction system for boiler smoke wet denitration according to claim 1, it is characterised in that
A check-valves is also respectively provided with two branch roads, positioned at the right-hand member of delivery pump.
4. the absorbent solution induction system for boiler smoke wet denitration according to claim 1, it is characterised in that
Two emptying bypass ball valves are also respectively provided with two branch roads, positioned at the two ends of delivery pump.
5. the absorbent solution induction system for boiler smoke wet denitration according to claim 1, it is characterised in that
Two manual ball valves are also respectively provided with two branch roads, positioned at the two ends of branch road.
6. the absorbent solution induction system for boiler smoke wet denitration according to claim 1, it is characterised in that
The flow transmitter, pressure display transformer and thermometer are connected to DCS control systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621116703.1U CN206198987U (en) | 2016-10-12 | 2016-10-12 | A kind of absorbent solution induction system for boiler smoke wet denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621116703.1U CN206198987U (en) | 2016-10-12 | 2016-10-12 | A kind of absorbent solution induction system for boiler smoke wet denitration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206198987U true CN206198987U (en) | 2017-05-31 |
Family
ID=58762192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621116703.1U Expired - Fee Related CN206198987U (en) | 2016-10-12 | 2016-10-12 | A kind of absorbent solution induction system for boiler smoke wet denitration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206198987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289463A (en) * | 2018-10-12 | 2019-02-01 | 彩虹（合肥）液晶玻璃有限公司 | A kind of urea spray system |
-
2016
- 2016-10-12 CN CN201621116703.1U patent/CN206198987U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289463A (en) * | 2018-10-12 | 2019-02-01 | 彩虹（合肥）液晶玻璃有限公司 | A kind of urea spray system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20211012 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |