CN204062989U - Boiler start-up system and boiler - Google Patents
Boiler start-up system and boiler Download PDFInfo
- Publication number
- CN204062989U CN204062989U CN201420440871.0U CN201420440871U CN204062989U CN 204062989 U CN204062989 U CN 204062989U CN 201420440871 U CN201420440871 U CN 201420440871U CN 204062989 U CN204062989 U CN 204062989U
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- CN
- China
- Prior art keywords
- boiler
- heating coil
- separator
- pipeline
- control valve
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Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 16
- 238000007710 freezing Methods 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract description 3
- 230000006837 decompression Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model discloses a kind of boiler start-up system and boiler, this boiler start-up system comprises the heating coil pipeline that the water from economizer can be transported to superheater and the startup separator (2) being connected to this heating coil pipeline, wherein, described heating coil pipeline is provided with control valve (4) in the upstream of the position connecting described startup separator (2).By control valve being arranged on the upstream starting separator, solve the problem starting separator and cause backwater to have some setbacks to the pipeline of superheater because pressure reduction is little, the water level started in separator is remained on normal level, make this start up system be transferred to after dry state is run by hygrometric state can keep often opening simultaneously, can prevent the situation lower pipeline temperature is lower from freezing.
Description
Technical field
The utility model relates to field of boilers, particularly, relates to a kind of boiler start-up system and boiler.
Background technology
The heating coil water of boiler start-up system is drawn from economizer outlet conduit, and this pipeline is provided with electric check valve and hand stop valve; Heating coil pipeline backwater, to superheater, this pipeline is disposed with electric check valve and control valve.Heating coil pipeline backwater is after control valve decompression, and start separator little to the pressure reduction of superheater one-level desuperheating water, backwater is not smooth; After start up system transfers dry state operation to by hygrometric state, after the electronic cut-off gate of supply channel is opened, start separator water level to raise fast, and start the too high boiler main fuel trip (main fuel trip) that will cause of separator water level, bring very big hidden danger to the safe operation of boiler.Starting the backwater problem of separator to superheater to solve, need to close heating coil pipeline, but in the case, easily cause winter heating coil pipeline to freeze, and when this starts again, in heating coil pipeline, hot and cold water meeting and causing high vibration, threatening production safety.
Therefore, need to provide a kind of internal duct backwater boiler start-up system smoothly.
Utility model content
Problem to be solved in the utility model is to provide a kind of internal duct backwater boiler start-up system smoothly.
In addition, the problem that the utility model also will solve is to provide a kind of start up system internal duct backwater boiler smoothly.
In order to solve the above problem, the utility model provides a kind of boiler start-up system, this boiler start-up system comprises and the water from economizer can be transported to the heating coil pipeline of superheater and be connected to the startup separator of this heating coil pipeline, wherein, described heating coil pipeline is provided with control valve in the upstream of the position connecting described startup separator.
Preferably, described heating coil pipeline is connected with air flash vessel in the upstream of described startup separator.
Preferably, described control valve is arranged on the upstream of described air flash vessel.
Preferably, described air flash vessel is connected to described heating coil pipeline by two parallel pipelines.
Preferably, described system comprises oxygen-eliminating device, and described heating coil pipeline is provided with the branch road being connected to described oxygen-eliminating device between the described startup separator (2) of connection and the position of described air flash vessel.
Preferably, described branch road is provided with check valve and restricting orifice.
Preferably, the upstream of described control valve is provided with the first manual cut-off gate, and the downstream of described control valve is provided with the first electronic cut-off gate.
Preferably, described heating coil pipeline is disposed with the second electronic cut-off gate and the second manual cut-off gate in the downstream of described startup separator.
Preferably, described startup separator comprises the first startup separator and the second startup separator that are connected in parallel to each other.
In addition, the utility model additionally provides a kind of boiler, and wherein, this boiler comprises the boiler start-up system according to above any one scheme.
Pass through technique scheme, by control valve being arranged on the upstream starting separator, solve the problem starting separator and cause backwater to have some setbacks to the pipeline of superheater because pressure reduction is little, the water level started in separator is remained on normal level, make this start up system be transferred to after dry state is run by hygrometric state can keep often opening simultaneously, can prevent the situation lower pipeline temperature is lower from freezing.
Other feature and advantage of the present utility model are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for description, is used from explanation the utility model, but does not form restriction of the present utility model with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the structural representation of the boiler start-up system according to a kind of detailed description of the invention of the present utility model.
Description of reference numerals
1 air flash vessel 2 starts separator
3 first manual cut-off gate 4 control valves
5 first electronic cut-off gate 6 restricting orifices
The electronic cut-off gate of 7 check valve 8 second
9 second manual cut-off gates
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
As shown in Figure 1, according to a kind of detailed description of the invention of the present utility model, provide a kind of boiler start-up system, this boiler start-up system comprises and the water from economizer A can be transported to the heating coil pipeline of superheater C and be connected to the startup separator 2 of this heating coil pipeline, wherein, described heating coil pipeline is provided with control valve 4 in the upstream of the position connecting described startup separator 2.
Start separator 2 for carrying the steam water interface of coming to be separated on the water-cooling wall by boiler, the water after being separated is transported to superheater.Because control valve 4 has depressurization, therefore the upstream starting separator 2 can be arranged on, avoid the too high problem of water level that the decompression inhibition being subject to control valve 4 by the isolated water of startup separator 2 causes, the water that startup separator 2 is carried can enter superheater C swimmingly, improves the security of heating coil pipeline.
In addition, described heating coil pipeline is connected with air flash vessel 1 starting the upstream of separator 2, and the gas separaion carried by economizer A in the water of coming is gone out by acting as of air flash vessel 1, and by Water Sproading.The downstream position of air flash vessel 1 is connected with the pipeline C that discharges water, and carries out to open this pipeline C that discharges water when described start up system is stopped transport the operation that discharges water.
Usually, control valve 4 can be arranged on from economizer A to the position started separator, but in actual production, control valve 4 is preferably arranged on the upstream of described air flash vessel 1, to carry out regulable control to whole heating coil pipeline, and the size of control valve 4 is more adapted to be arranged on the pipeline between economizer A to air flash vessel 1.
In addition, air flash vessel 1 is connected to described heating coil pipeline by two parallel pipelines.In order to the problem preventing single-pipeline situation down-off too small occurs, therefore air flash vessel 1 adopts dual circuit to be connected to described heating coil pipeline.
In addition, described system comprises oxygen-eliminating device B, and described heating coil pipeline is provided with the branch road being connected to described oxygen-eliminating device between connection startup separator 2 and the position of air flash vessel 1.Oxygen-eliminating device B is for removing the oxygen in pipeline water.Further, described branch road is provided with check valve 7 and restricting orifice 6, check valve 7 is for preventing the aqueous reflux in pipeline, and restricting orifice 6 has step-down metering function, and the pressure or the flow that prevent from being transported to oxygen-eliminating device B are excessive.
In addition, the upstream of control valve 4 is provided with the first manual cut-off gate 3, and the downstream of control valve 4 is provided with the first electronic cut-off gate 5.First electronic cut-off gate 5 and the first manual cut-off gate 3 only have unlatching and shutoff effect, do not possess regulating action, first electronic cut-off gate 5 is for controlling start up system pipeline by electronic control system, and the first manual cut-off gate 3 in the situations such as the system failure, manually can be controlled pipeline by staff.Similarly, described heating coil pipeline is disposed with the second electronic cut-off gate 8 and the second manual cut-off gate 9 in the downstream of described startup separator 2, to carry out electronic or Non-follow control to pipeline in different situations respectively.
In order to improve start up system safe operation coefficient, start separator 2 and comprise the first startup separator and the second startup separator that are connected in parallel to each other, even if therefore some startup separators break down, also can start separator by another and keep start up system to run.
In addition, additionally provide a kind of boiler according to a kind of detailed description of the invention of the present utility model, wherein, this boiler comprises the boiler start-up system according to above any one scheme.
According to boiler start-up system described in the utility model, when starting to start, first manual cut-off gate 3, control valve 4 and Electrically operated gate 5 are held open, the second manual cut-off gate 9 of electronic cut-off gate 8, second and the pipeline C that discharges water keep closing, air flash vessel 1, oxygen-eliminating device B and startup separator 2 are opened, and now this boiler start-up system is that hygrometric state runs; When boiler normally runs, boiler start-up system transfers dry state to and runs, air flash vessel 1, oxygen-eliminating device B transfer closed condition to, the manual cut-off gate 9 of second electronic cut-off gate 8, second transfers unlatching to, water in described heating coil pipeline and the water started in separator 2 start to enter superheater C, described boiler start-up system is in this hot stand-by duty always, can prevent the too low pipeline that causes of winter temperature from freezing.
Below preferred embodiment of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible combination.
In addition, also can be combined between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. boiler start-up system, this boiler start-up system comprises the heating coil pipeline that the water from economizer can be transported to superheater and the startup separator (2) being connected to this heating coil pipeline, it is characterized in that, described heating coil pipeline is provided with control valve (4) in the upstream of the position connecting described startup separator (2).
2. boiler start-up system according to claim 1, is characterized in that, described heating coil pipeline is connected with air flash vessel (1) in the upstream of described startup separator (2).
3. boiler start-up system according to claim 2, is characterized in that, described control valve (4) is arranged on the upstream of described air flash vessel (1).
4. the boiler start-up system according to Claims 2 or 3, is characterized in that, described air flash vessel (1) is connected to described heating coil pipeline by two parallel pipelines.
5. boiler start-up system according to claim 2, it is characterized in that, described system comprises oxygen-eliminating device, and described heating coil pipeline is provided with the branch road being connected to described oxygen-eliminating device between the described startup separator (2) of connection and the position of described air flash vessel (1).
6. boiler start-up system according to claim 5, is characterized in that, described branch road is provided with check valve (7) and restricting orifice (6).
7. boiler start-up system according to claim 2, it is characterized in that, the upstream of described control valve (4) is provided with the first manual cut-off gate (3), and the downstream of described control valve (4) is provided with the first electronic cut-off gate (5).
8. boiler start-up system according to claim 1, is characterized in that, described heating coil pipeline is disposed with the second electronic cut-off gate (8) and the second manual cut-off gate (9) in the downstream of described startup separator (2).
9. boiler start-up system according to claim 1, is characterized in that, described startup separator (2) comprises the first startup separator and second be connected in parallel to each other and starts separator.
10. boiler, is characterized in that, this boiler comprises the boiler start-up system according to claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420440871.0U CN204062989U (en) | 2014-08-06 | 2014-08-06 | Boiler start-up system and boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420440871.0U CN204062989U (en) | 2014-08-06 | 2014-08-06 | Boiler start-up system and boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204062989U true CN204062989U (en) | 2014-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420440871.0U Active CN204062989U (en) | 2014-08-06 | 2014-08-06 | Boiler start-up system and boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204062989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913287A (en) * | 2015-06-01 | 2015-09-16 | 广东红海湾发电有限公司 | Control method for preventing great amount of water from entering superheater during startup and shutdown of once-through boiler |
-
2014
- 2014-08-06 CN CN201420440871.0U patent/CN204062989U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913287A (en) * | 2015-06-01 | 2015-09-16 | 广东红海湾发电有限公司 | Control method for preventing great amount of water from entering superheater during startup and shutdown of once-through boiler |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |