CN205383623U - Steam blows grey control system - Google Patents
Steam blows grey control system Download PDFInfo
- Publication number
- CN205383623U CN205383623U CN201620211714.1U CN201620211714U CN205383623U CN 205383623 U CN205383623 U CN 205383623U CN 201620211714 U CN201620211714 U CN 201620211714U CN 205383623 U CN205383623 U CN 205383623U
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- temperature
- soot
- drain
- soot blowing
- utility
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- 239000004071 soot Substances 0.000 claims abstract description 72
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 18
- 238000007664 blowing Methods 0.000 claims description 69
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 5
- 230000001771 impaired effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Incineration Of Waste (AREA)
Abstract
The utility model discloses a steam blows grey control system, this system includes: temperature sensor is located and dredges water station delivery outlet department for gather the hydrophobic temperature of dredging water station delivery outlet department, and the controller, with temperature sensor connects for according to the hydrophobic temperature and the work of temperature threshold control soot blower of gathering. The utility model discloses can avoid steam to blow that water is taken to the ash and the equipment that causes is impaired because steam blows that water is taken to the ash, improve and blow grey effect and blow grey efficiency to the security has improved when having saved a large amount of energy.
Description
Technical field
This utility model relates to control field, in particular it relates to a kind of steam soot blowing controls system.
Background technology
In existing thermal power plant and/or large scale industry boiler system, for ensureing that large-sized boiler body and Air Preheater Heating Surface clean to improve boiler efficiency, it is generally adopted steam soot blowing.Wherein, boiler body Steam Soot-Blower System hydrophobic control logic is simple.Such as, when starting after soot blower system, the hydrophobic time is limited by being manually set, and namely boiler body is carried out soot blowing after arriving the setting time.Generally, Steam Soot-Blower System pipeline is longer, hydrophobic often abundant not, or other soot blowing arm vapor (steam) temperature is gradually lowered in soot blowing process, when this arm soot blower is to boiler heating surface soot blowing, directly resulting in water entrained by steam soot blowing, the short time, then tube wall blow loss was thinning, long-time then tube wall leaks, and causes unit unplanned outage.And the soot-blowing control logic of the Steam Soot-Blower System control logical AND boiler body of air preheater is identical, the problem that therefore there is also water entrained by steam soot blowing, affect air preheater soot blowing effect, cause that exhaust gas temperature rises, reduce boiler efficiency.If additionally, set the longer hydrophobic time, also resulting in the consumption of mass energy.
Utility model content
For the technical problem of the water entrained by steam soot blowing existed in prior art, this utility model provides a kind of steam soot blowing and controls system, and this system includes: temperature sensor, is positioned at hydrophobic station equipped at outlet port, for gathering the drain temperature of hydrophobic station equipped at outlet port；And controller, it is connected with described temperature sensor, for controlling soot blower work according to the drain temperature gathered and temperature threshold.
Preferably, described controller is additionally operable to the cut out drain valve when the drain temperature gathered is more than temperature threshold, carries out soot blowing operation；And described controller is additionally operable to when the drain temperature gathered is less than or equal to temperature threshold, opens drain valve, forbid that soot blowing operates.
Preferably, it is in bad point situation that described controller is additionally operable to judging the drain temperature collected, and carries out soot blowing operation and is left out the described drain temperature collected.
Preferably, described controller is additionally operable to select boiler body and/or air preheater are carried out soot-blowing control.
Preferably, described controller is host computer.
Preferably, described temperature sensor is thermocouple.
The steam soot blowing that this utility model provides is adopted to control system, the drain temperature of hydrophobic station equipped at outlet port is gathered by temperature sensor, controller controls soot blower work according to the drain temperature gathered and temperature threshold afterwards, steam soot blowing can be avoided impaired with water and the equipment that causes with water due to steam soot blowing, improve soot blowing effect and soot blowing efficiency, thus improve safety while saving mass energy.
Other features and advantages of the utility model will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, but is not intended that restriction of the present utility model together with detailed description below.In the accompanying drawings:
Fig. 1 is the schematic diagram of the exemplary steam soot blower control system according to a kind of embodiment of the present utility model；And
Fig. 2 is the flow chart of the exemplary steam soot-blowing control method according to a kind of embodiment of the present utility model.
Description of reference numerals
10 temperature sensor 20 controllers
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.It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains this utility model, it is not limited to this utility model.
Will be exemplified below thought of the present utility model, it is to be understood that these examples be non-limiting example, protection domain of the present utility model is not limited to this:
In order to thought of the present utility model is clearly described, Fig. 1 is the schematic diagram of the exemplary steam soot blower control system according to a kind of embodiment of the present utility model, as shown in Figure 1, this system may include that temperature sensor 10, it is positioned at hydrophobic station equipped at outlet port, for gathering the drain temperature of hydrophobic station equipped at outlet port, it is preferable that described temperature sensor 10 is thermocouple.Wherein, the quantity of described temperature sensor 10 can be multiple, and namely each hydrophobic station all configures a temperature sensor 10.Additionally, this system also includes controller 20, it is connected with (multiple) temperature sensor, for controlling soot blower work according to the drain temperature gathered and temperature threshold.
Specifically, described controller 20 can be previously stored with temperature threshold (such as this temperature threshold can set that as 260-300 DEG C), in control process, the drain temperature gathered and this temperature threshold can be compared by described controller 20, and when judging the drain temperature gathered more than temperature threshold, close drain valve, carry out soot blowing operation；And described controller 20 is when the drain temperature gathered is less than or equal to temperature threshold, opening drain valve, forbidding that soot blowing operates, it is ensured that soot blowing working medium has certain degree of superheat, thus preventing boiler sootblowing steam band water and blow loss heating surface.
It should be appreciated that described controller 20 can select boiler body and/or air preheater are carried out soot-blowing control according to actual needs.Such as, when being chosen as air preheater soot blowing, only open the soot blowing pipeline drain valve of air preheater；When being chosen as boiler body soot blowing, only open the soot blowing pipeline drain valve of four boiler bodies, it is to avoid working medium is wasted.Such as, soot-blowing control for boiler body, controller 20 carries out soot-blowing control according to temperature threshold as mentioned above, but the temperature threshold of each soot blowing pipeline in boiler body is only effective to the soot blower of this soot blowing pipeline, the drain temperature of other soot blowing pipeline is low does not affect this soot blowing pipeline soot blower soot blowing, it is to avoid hydrophobic waste working medium again.And, after the burner hearth of soot blower entrance boiler body, this soot blowing pipeline drain temperature is lower than temperature threshold, due to the existing superheated steam flowing of this soot blowing pipeline, therefore now controller 20 without again hydrophobic, after treating that this soot blower soot blowing completes, being then turned on corresponding drain valve hydrophobic, drain temperature can continue soot blowing more than next soot blower after temperature threshold, thus saving the energy while improving soot blowing efficiency.Soot-blowing control for air preheater is also similar, preferably allow for the starting trouble steam supply parameter when unit full cut-off first operating unit starts on the low side, the temperature threshold of air preheater can first reduce, to be cut be changed to main vapour source after can reset this temperature threshold to reach better soot blowing effect.
According to another embodiment of the present utility model, described controller 20 may be configured to judging that the drain temperature collected is that (such as described temperature sensor 10 does not collect data or collects value beyond normal temperature measurement scope bad point situation, such as infinity or negative value etc.) under, carry out soot blowing operation and be left out the described drain temperature collected, namely when controller 20 judges that the drain temperature collected is bad point, it will mask the above-mentioned operation carrying out soot-blowing control according to the described drain temperature collected and temperature threshold, proceed soot blowing operation.It is further preferable that now controller 20 also can send warning, to point out related personnel to carry out the relevant treatment such as maintenance.Further, after being disposed, the soot-blowing control operation that above-mentioned this utility model provides is recovered.Preferably, it is possible to increase " measuring point fault " switch module, when there is bad point, described switch module closes, and makes soot blowing do not limited by drain temperature, has processed after fault measuring point until related personnel, " measuring point fault " switch module disconnects, and recovers the soot-blowing control operation that above-mentioned this utility model provides.
It should be appreciated that described controller 20 can be any device being capable of above-mentioned functions, it is preferable that described controller 20 can be host computer.The steam soot blowing that this utility model provides is adopted to control system, steam soot blowing can be avoided impaired with water and the equipment that causes with water due to steam soot blowing, improve soot blowing effect and soot blowing efficiency, thus improve the safety of whole system while saving mass energy (such as water resource).
Fig. 2 is the flow chart of the exemplary steam soot-blowing control method according to a kind of embodiment of the present utility model, as in figure 2 it is shown, the method may comprise steps of:
Step 1001, gathers the drain temperature of hydrophobic station equipped at outlet port；And
Step 1002, controls soot blower work according to the drain temperature gathered and temperature threshold.
Preferably, control soot blower work according to the drain temperature gathered and temperature threshold and may include that when the drain temperature gathered is more than temperature threshold, close drain valve, carry out soot blowing operation；And when the drain temperature gathered is less than or equal to temperature threshold, opens drain valve, forbid that soot blowing operates.
Preferably, the method can also include: the drain temperature collected in judgement is in bad point situation, carries out soot blowing operation and is left out the described drain temperature collected.
Preferably, the method can also include: selects boiler body and/or air preheater are carried out soot-blowing control.
It should be appreciated that each detailed description of the invention of above-mentioned steam soot blowing control method, all control at steam soot blowing the embodiment of system has done to explain (as mentioned above), do not repeat them here.And; those skilled in the art can according to any one openly selection in above-mentioned various embodiment of the present utility model; or the combination selecting above-mentioned various embodiment controls system to configure steam soot blowing, and other replacement embodiment also falls into protection domain of the present utility model.
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing; but; this utility model is not limited to the detail in above-mentioned embodiment; in technology concept of the present utility model; the technical solution of the utility model can being carried out multiple simple variant, these simple variant belong to protection domain of the present utility model.
It is further to note that, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, it is possible to be combined by any suitable mode, in order to avoid unnecessary repetition, various possible compound modes are no longer illustrated by this utility model separately.
Additionally, can also carry out combination in any 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 (6)
1. a steam soot blowing controls system, it is characterised in that this system includes:
Temperature sensor, is positioned at hydrophobic station equipped at outlet port, for gathering the drain temperature of hydrophobic station equipped at outlet port；And
Controller, is connected with described temperature sensor, for controlling soot blower work according to the drain temperature gathered and temperature threshold.
2. system according to claim 1, it is characterised in that described controller is additionally operable to the cut out drain valve when the drain temperature gathered is more than temperature threshold, carries out soot blowing operation；And described controller is additionally operable to when the drain temperature gathered is less than or equal to temperature threshold, opens drain valve, forbid that soot blowing operates.
3. system according to claim 1, it is characterised in that it is in bad point situation that described controller is additionally operable to judging the drain temperature collected, and carries out soot blowing operation and is left out the described drain temperature collected.
4. system according to claim 2, it is characterised in that described controller is additionally operable to select boiler body and/or air preheater are carried out soot-blowing control.
5. the system described in claim any one of claim 1-4, it is characterised in that described controller is host computer.
6. system according to claim 5, it is characterised in that described temperature sensor is thermocouple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620211714.1U CN205383623U (en) | 2016-03-18 | 2016-03-18 | Steam blows grey control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620211714.1U CN205383623U (en) | 2016-03-18 | 2016-03-18 | Steam blows grey control system |
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| Publication Number | Publication Date |
|---|---|
| CN205383623U true CN205383623U (en) | 2016-07-13 |
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| CN201620211714.1U Active CN205383623U (en) | 2016-03-18 | 2016-03-18 | Steam blows grey control system |
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| CN (1) | CN205383623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737176A (en) * | 2016-03-18 | 2016-07-06 | 中国神华能源股份有限公司 | Steam soot blowing control method and system |
-
2016
- 2016-03-18 CN CN201620211714.1U patent/CN205383623U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737176A (en) * | 2016-03-18 | 2016-07-06 | 中国神华能源股份有限公司 | Steam soot blowing control method and system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |