CN205783213U - A kind of boiler exhaust gas recovery of lighting a fire utilizes system - Google Patents
A kind of boiler exhaust gas recovery of lighting a fire utilizes system Download PDFInfo
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- CN205783213U CN205783213U CN201620684816.5U CN201620684816U CN205783213U CN 205783213 U CN205783213 U CN 205783213U CN 201620684816 U CN201620684816 U CN 201620684816U CN 205783213 U CN205783213 U CN 205783213U
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- valve
- air valve
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- outlet
- boiler
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Abstract
A kind of boiler exhaust gas recovery of lighting a fire utilizes system, relates to heat supply technical field of power generation, is used for reclaiming heat, reduces waste.A kind of boiler exhaust gas recovery of lighting a fire utilizes system, it is characterized in that, including the first boiler, the second boiler, the 3rd boiler, the 4th boiler, the first threeway, the second threeway, the 3rd threeway, the 4th threeway, main steam line and secondary jet chimney；Described first boiler includes the first steam pipe, first steam pipe and the inlet communication of the first threeway, one of them outlet and the import being communicated with first and air valve of the first threeway, described first and the outlet of air valve connect with described main steam line, another outlet of described first threeway has the import of first row air valve, the outlet of described first row air valve to connect with described secondary jet chimney.Provide the benefit that, energy utilization rate can be improved.
Description
Technical field
This utility model relates to thermal technology field, and specifically a kind of boiler exhaust gas recovery of lighting a fire utilizes system.
Background technology
In prior art, station boiler cold conditions vapour starts, and takes long enough (about 8-from igniting to boiler stove process
10h).After igniting, when in-furnace temperature reaches about 900 DEG C, boiler starts boosting.For controlling certain rate of rise, need to adjust
Save fuel quantity and to idle discharge air valve.When steam parameter meets steam turbine nominal parameter, open and steam valve be incorporated to main steam pipe,
Simultaneously close off idle discharge air valve.During boiler shutdown, close and steam valve, open idle discharge air valve simultaneously, steam is carried out blood pressure lowering.
In above process, either igniting is to also stove process, for making it possible to ensure steam stable increasing temperature and pressure, reaches
To steam quality during also stove, or in furnace shutting down process, it is required for draining substantial amounts of steam.It addition, unit long-play, by
In reasons such as equipment faults, boiler meeting start and stop are many times.Once, power station will waste the substantial amounts of energy in every start and stop.How
Maximally utilise heat, reduce heat loss, the most just become the major issue during boiler start/ stop.
Utility model content
The purpose of this utility model is to provide a kind of boiler exhaust gas recovery of lighting a fire to utilize system, is used for reclaiming heat, subtracts
Little waste.
The technical scheme in the invention for solving the technical problem is: a kind of boiler exhaust gas recovery of lighting a fire utilizes system
System, it is characterized in that, including the first boiler, the second boiler, the 3rd boiler, the 4th boiler, the first threeway, the second threeway, the three or three
Logical, the 4th threeway, main steam line and secondary jet chimney；
Described first boiler includes the first steam pipe, the first steam pipe and the inlet communication of the first threeway, the first threeway
One of them outlet and the import being communicated with first and air valve, described first and the outlet of air valve and described main steam line are even
Logical, another outlet of described first threeway has the import of first row air valve, and the outlet of described first row air valve is with described
Secondary jet chimney connection；
Described second boiler includes the second steam pipe, the second steam pipe and the inlet communication of the second threeway, the second threeway
One of them outlet and the import being communicated with second and air valve, described second and the outlet of air valve and described main steam line are even
Logical, another outlet of described second threeway has the import of second row air valve, and the outlet of described second row air valve is with described
Secondary jet chimney connection；
Described 3rd boiler includes the 3rd steam pipe, the 3rd steam pipe and the inlet communication of the 3rd threeway, the 3rd threeway
One of them outlet and the import being communicated with the 3rd and air valve, the described 3rd and the outlet of air valve and described main steam line are even
Logical, another outlet of described 3rd threeway has the import of the 3rd air bleeding valve, and the outlet of described 3rd air bleeding valve is with described
Secondary jet chimney connection；
Described 4th boiler includes the 4th steam pipe, the 4th steam pipe and the inlet communication of the 4th threeway, the 4th threeway
One of them outlet and the import being communicated with the 4th and air valve, the described 4th and the outlet of air valve and described main steam line are even
Logical, another outlet of described 4th threeway has the import of the 4th air bleeding valve, and the outlet of described 4th air bleeding valve is with described
Secondary jet chimney connection；
Described secondary jet chimney is communicated with the import of temperature-decreased pressure reducer, and the outlet of described temperature-decreased pressure reducer has heating valve
Import, the outlet of described heating valve has heat supply pipeline.
Further, described first and air valve, second and air valve, the 3rd and air valve, the 4th and air valve, first row air valve,
Second row air valve, the 3rd air bleeding valve, the 4th air bleeding valve and heating valve are respectively adopted electromagnetic valve.
Further, the pipeline between described temperature-decreased pressure reducer and heating valve is provided with pressure transducer.
Further, the pipeline between described temperature-decreased pressure reducer and heating valve is provided with temperature sensor.
Further, described first and air valve, second and air valve, the 3rd and air valve, the 4th and air valve, first row air valve,
Second row air valve, the 3rd air bleeding valve, the 4th air bleeding valve, temperature sensor, pressure transducer are connected with control system respectively.
The beneficial effects of the utility model are:
1, a kind of boiler exhaust gas recovery of lighting a fire that this utility model provides utilizes system, when the first boiler, the second boiler, the
Three boilers and the 4th boiler light a fire startup when, by first and air valve, second and air valve, the 3rd and air valve and the 4th and air valve
Close respectively, then first row air valve, second row air valve, the 3rd air bleeding valve and the 4th air bleeding valve are opened respectively, so giving birth to
During fire each boiler produce steam be incorporated into after the process of temperature-decreased pressure reducer in heat supply pipeline, heat supply pipeline for
User's heat supply.When the pressure and temperature of the steam in each boiler reaches grid-connected requirement when, close first row air valve, the
Two air bleeding valves, the 3rd air bleeding valve and the 4th air bleeding valve, then open first and air valve, second and air valve, the 3rd and air valve and the
Four and air valve, the steam that each boiler produces is incorporated in main steam line, main steam line is for working for steam-electric power
Steam is provided.When the first boiler, the second boiler, the 3rd boiler and the 4th boiler extinguishment are shut down when, by first and air valve, the
Two and air valve, the 3rd and air valve and the 4th and air valve close respectively, then by first row air valve, second row air valve, the 3rd aerofluxus
Valve and the 4th air bleeding valve are opened respectively, and the steam that so each boiler produces during lighting a fire is after the process of temperature-decreased pressure reducer
Being incorporated in heat supply pipeline, heat supply pipeline is for user's heat supply.This improves the utilization rate of the energy, brings the biggest economy
Benefit.
2, first and air valve, second and air valve, the 3rd and air valve, the 4th and air valve, first row air valve, second row air valve,
3rd air bleeding valve, the 4th air bleeding valve and heating valve are respectively adopted electromagnetic valve, are controlled the action of each valve by the signal of telecommunication, this
Sample is possible not only to the break-make of control piper timely, but also staff can be avoided to be burned.
3, pressure transducer is for detecting the pressure in the pipeline between temperature-decreased pressure reducer and heating valve, when pressure passes
The pressure value that sensor detects less than heating demand pressure when by heat supply valve closing.
4, temperature sensor is for detecting the temperature in the pipeline between temperature-decreased pressure reducer and heating valve, when pressure passes
The pressure value that sensor detects less than heating demand temperature when by heat supply valve closing.
5, the switch controlling each valve that control system can be timely automated, it is ensured that system accurate work.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
In figure: 1 first boiler, 11 first steam pipes, 12 first threeways, 13 first and air valve, 14 first row air valves, 2 the
Two boilers, 21 second steam pipes, 22 second threeways, 23 second and air valve, 24 second row air valves, 3 the 3rd boilers, 31 the 3rd steam
Pipe, 32 the 3rd threeways, 33 the 3rd and air valve, 34 the 3rd air bleeding valves, 4 the 4th boilers, 41 the 4th steam pipes, 42 the 4th threeways, 43
4th and air valve, 44 the 4th air bleeding valves, 5 main steam lines, 6 secondary jet chimneys, 7 temperature sensors, 8 pressure transducers, 9 desuperheats
Decompressor, 91 heating valves, 92 heat supply pipelines.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that retouched
The embodiment stated is a part of embodiment of the present utility model rather than whole embodiments.Based on the reality in this utility model
Execute example, the every other embodiment that those of ordinary skill in the art are obtained on the premise of not making creative work, all
Belong to the scope of this utility model protection.
As it is shown in figure 1, the first boiler 1 includes the first steam pipe 11, the first steam pipe and the inlet communication of the first threeway 12,
One of them outlet of first threeway and the import being communicated with first and air valve 13, first and the outlet of air valve and main steam line
5 connections, another outlet of the first threeway 12 has the import of first row air valve 14, the outlet of first row air valve 14 to steam with secondary
Steam pipe road 6 connects.
Second boiler 2 includes the second steam pipe 21, the second steam pipe and the inlet communication of the second threeway 22, the second threeway
One of them outlet and the outlet being communicated with second and the import of air valve 23, second and air valve connect with main steam line 5, and second
Another outlet of threeway 22 has the import of second row air valve 24, the outlet of second row air valve to connect with secondary steam pipe 6 road.
3rd boiler 3 includes the 3rd steam pipe 31, the 3rd steam pipe and the inlet communication of the 3rd threeway 32, the 3rd threeway 32
One of them outlet connect with main steam line 5 with the outlet being communicated with the 3rd and the import of air valve 33, the 3rd and air valve 33,
Another outlet of 3rd threeway 32 has the import of the 3rd air bleeding valve 34, the outlet of the 3rd air bleeding valve and secondary jet chimney 6
Connection.
4th boiler 4 includes the 4th steam pipe 41, the 4th steam pipe and the inlet communication of the 4th threeway 42, the 4th threeway
One of them outlet and the outlet being communicated with the 4th and the import of air valve 43, the 4th and air valve connect the 5, the 4th with main steam line
Another outlet of threeway 42 has the import of the 4th air bleeding valve 44, and the outlet of the 4th air bleeding valve 44 is with secondary jet chimney 6 even
Logical.
Secondary jet chimney is communicated with the import of temperature-decreased pressure reducer 9, and the outlet of temperature-decreased pressure reducer has entering of heating valve 91
Mouthful, the outlet of heating valve has heat supply pipeline 92.Pipeline between temperature-decreased pressure reducer 9 and heating valve 91 is provided with pressure pass
Sensor 8 and temperature sensor 7, temperature sensor and pressure transducer connect with control system respectively.
First and air valve 13, second air valve the 23, the 3rd air valve the 33, the 4th air valve 43, first row air valve 14, second
Air bleeding valve the 24, the 3rd air bleeding valve the 34, the 4th air bleeding valve 44 and heating valve 91 are respectively adopted electromagnetic valve and connect with control system respectively
Connect.
When startup lit a fire by first boiler the 1, second boiler the 2, the 3rd boiler 3 and the 4th boiler 4 when, by first and air valve
13, second and air valve the 23, the 3rd air valve 33 and the 4th and air valve 44 close respectively, then by first row air valve 14, second row
Air valve the 24, the 3rd air bleeding valve 34 and the 4th air bleeding valve 44 are opened respectively, and the steam that so each boiler produces during lighting a fire exists
Being incorporated into after the process of temperature-decreased pressure reducer 9 in heat supply pipeline 92, heat supply pipeline is for user's heat supply.When in each boiler
The when that the pressure and temperature of steam reaching grid-connected requirement, close first row air valve 14, second row air valve the 24, the 3rd air bleeding valve
34 and the 4th air bleeding valve 44, then open first and air valve 13, second air valve the 23, the 3rd air valve 33 and the 4th and air valve
44, the steam that each boiler produces is incorporated in main steam line 5, main steam line is for providing steaming for steam-electric power work
Vapour.When first boiler the 1, second boiler the 2, the 3rd boiler 3 and the 4th boiler 4 are put out a fire and shut down when, by first and air valve 13, the
Two and air valve the 23, the 3rd air valve 33 and the 4th and air valve 44 close respectively, then by first row air valve 14, second row air valve
24, the 3rd air bleeding valve 34 and the 4th air bleeding valve 44 are opened respectively, and the steam that so each boiler produces during lighting a fire is through subtracting
Being incorporated into after the process of temperature-decreased pressure reducer 9 in heat supply pipeline 92, heat supply pipeline is for user's heat supply.This improves the utilization of the energy
Rate, brings the biggest economic benefit.
First and air valve 13, second air valve the 23, the 3rd air valve the 33, the 4th air valve 43, first row air valve 14, second
Air bleeding valve the 24, the 3rd air bleeding valve the 34, the 4th air bleeding valve 44 and heating valve 91 are respectively adopted electromagnetic valve, are controlled respectively by the signal of telecommunication
The action of individual valve, is so possible not only to the break-make of control piper timely, but also staff can be avoided to be burned.
Pressure transducer, for detecting the pressure in the pipeline between temperature-decreased pressure reducer 9 and heating valve 91, works as pressure
The pressure value that sensor detects less than heating demand pressure when by heat supply valve closing.
Temperature sensor, for detecting the temperature in the pipeline between temperature-decreased pressure reducer 9 and heating valve 91, works as pressure
The pressure value that sensor detects less than heating demand temperature when by heat supply valve closing.
Control system can be timely automated control each valve switch, it is ensured that system accurate work.
Claims (5)
1. boiler exhaust gas recovery of lighting a fire utilizes a system, it is characterized in that, including the first boiler, the second boiler, the 3rd boiler,
Four boilers, the first threeway, the second threeway, the 3rd threeway, the 4th threeway, main steam line and secondary jet chimney；
Described first boiler includes the first steam pipe, the first steam pipe and the inlet communication of the first threeway, and the first threeway is wherein
One outlet and the outlet being communicated with first and the import of air valve, described first and air valve connect with described main steam line, institute
Another outlet stating the first threeway has the import of first row air valve, the outlet of described first row air valve and described secondary steam
Pipeline communication；
Described second boiler includes the second steam pipe, the second steam pipe and the inlet communication of the second threeway, and the second threeway is wherein
One outlet and the outlet being communicated with second and the import of air valve, described second and air valve connect with described main steam line, institute
Another outlet stating the second threeway has the import of second row air valve, the outlet of described second row air valve and described secondary steam
Pipeline communication；
Described 3rd boiler includes the 3rd steam pipe, the 3rd steam pipe and the inlet communication of the 3rd threeway, and the 3rd threeway is wherein
One outlet and the outlet being communicated with the 3rd and the import of air valve, the described 3rd and air valve connect with described main steam line, institute
Another outlet stating the 3rd threeway has the import of the 3rd air bleeding valve, the outlet of described 3rd air bleeding valve and described secondary steam
Pipeline communication；
Described 4th boiler includes the 4th steam pipe, the 4th steam pipe and the inlet communication of the 4th threeway, and the 4th threeway is wherein
One outlet and the outlet being communicated with the 4th and the import of air valve, the described 4th and air valve connect with described main steam line, institute
Another outlet stating the 4th threeway has the import of the 4th air bleeding valve, the outlet of described 4th air bleeding valve and described secondary steam
Pipeline communication；
Described secondary jet chimney is communicated with the import of temperature-decreased pressure reducer, and the outlet of described temperature-decreased pressure reducer has entering of heating valve
Mouthful, the outlet of described heating valve has heat supply pipeline.
A kind of boiler the most according to claim 1 exhaust gas recovery of lighting a fire utilizes system, it is characterized in that, described first and gas
Valve, second and air valve, the 3rd and air valve, the 4th and air valve, first row air valve, second row air valve, the 3rd air bleeding valve, the 4th aerofluxus
Valve and heating valve are respectively adopted electromagnetic valve.
A kind of boiler the most according to claim 2 exhaust gas recovery of lighting a fire utilizes system, it is characterized in that, is positioned at described desuperheat and subtracts
Pipeline between depressor and heating valve is provided with pressure transducer.
A kind of boiler the most according to claim 3 exhaust gas recovery of lighting a fire utilizes system, it is characterized in that, is positioned at described desuperheat and subtracts
Pipeline between depressor and heating valve is provided with temperature sensor.
A kind of boiler the most according to claim 4 exhaust gas recovery of lighting a fire utilizes system, it is characterized in that, described first and gas
Valve, second and air valve, the 3rd and air valve, the 4th and air valve, first row air valve, second row air valve, the 3rd air bleeding valve, the 4th aerofluxus
Valve, temperature sensor, pressure transducer are connected with control system respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620684816.5U CN205783213U (en) | 2016-06-30 | 2016-06-30 | A kind of boiler exhaust gas recovery of lighting a fire utilizes system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620684816.5U CN205783213U (en) | 2016-06-30 | 2016-06-30 | A kind of boiler exhaust gas recovery of lighting a fire utilizes system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205783213U true CN205783213U (en) | 2016-12-07 |
Family
ID=58125865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620684816.5U Expired - Fee Related CN205783213U (en) | 2016-06-30 | 2016-06-30 | A kind of boiler exhaust gas recovery of lighting a fire utilizes system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205783213U (en) |
-
2016
- 2016-06-30 CN CN201620684816.5U patent/CN205783213U/en not_active Expired - Fee Related
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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: 20161207 Termination date: 20200630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |