CN206009358U - A kind of desulfurizer mist eliminator differential pressure sampling line automatic flushing device - Google Patents
A kind of desulfurizer mist eliminator differential pressure sampling line automatic flushing device Download PDFInfo
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- CN206009358U CN206009358U CN201620839037.8U CN201620839037U CN206009358U CN 206009358 U CN206009358 U CN 206009358U CN 201620839037 U CN201620839037 U CN 201620839037U CN 206009358 U CN206009358 U CN 206009358U
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- differential pressure
- sampling line
- valve
- pressure sampling
- mist eliminator
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Abstract
The utility model provides a kind of desulfurizer mist eliminator differential pressure sampling line automatic flushing device, in order to rinse a differential pressure sampling line of one differential pressure transmitter of connection, including：It is arranged at the protection valve of the differential pressure sampling line；One cleaning scavenging pipeline, its one end connect the differential pressure sampling line, and the other end connects mist eliminator flushing water lines and a compressed air line simultaneously；In the mist eliminator flushing water lines, a flush switching valve is set；A purging switch valve is provided with the compressed air line.Auto-flushing easily can be carried out to sampling line, and it is convenient to fetch water, rinse thoroughly.Using compressed air and mist eliminator flushing water periodic flushing demister differential pressure sampling line, it is to avoid the generation of sampling line stopping state, it is ensured that the accuracy of demister differential pressure measurement, effectively reduce person works' amount.
Description
Technical field
The utility model is related to environmental technology field, more particularly to wet process of FGD equipment, and in particular to a kind of desulfurization
Tower demister differential pressure sampling line automatic flushing device.
Background technology
At present, in order to learn the working condition of thermal power plant's Wet Limestone Desulfurization absorption tower demisting device, confirm chocking-up degree,
Need the differential pressure for importing and exporting demister to measure, measured using differential pressure transmitter mostly.The sampling of differential pressure transmitter
Pipeline adopts latus rectum 16mm stainless steel tubes.Due to measured medium be flue gas, and absorption tower inside smoke contain a large amount of water, dust,
The gas, liquid, solid material such as gypsum particle, limestone particle, often results in sampling line blocking, is so accomplished by maintainer and climbs up
Desulfuration absorbing tower is taken sampling line apart and is processed.Due to measuring the sampling line installation site height of demister differential pressure and blocking frequency
Numerous, intensity of workers is big, there is falling from high altitude risk.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of desulfurizer mist eliminator differential pressure sampling line automatic
Flusher, easily can carry out auto-flushing, and it is convenient to fetch water to sampling line, rinse thoroughly.Using compressed air
And mist eliminator flushing water periodic flushing demister differential pressure sampling line, it is to avoid the generation of sampling line stopping state, it is ensured that demisting
The accuracy of device differential pressure measurement, effectively reduces person works' amount.
It is that the concrete technical scheme that the utility model is taken is up to above-mentioned purpose：
A kind of desulfurizer mist eliminator differential pressure sampling line automatic flushing device, in order to rinse the one of one differential pressure transmitter of connection
Differential pressure sampling line, including：
It is arranged at the protection valve of the differential pressure sampling line；
One cleaning scavenging pipeline, its one end connect the differential pressure sampling line, and the other end connects a mist eliminator flushing simultaneously
Water lines and a compressed air line；
In the mist eliminator flushing water lines, a flush switching valve is set；A purging is provided with the compressed air line
Switch valve.
Further, the differential pressure sampling line includes a high-pressure sampling pipeline and a low pressure sampling line, the high pressure
Sampling line is provided with one first protection valve, and the low pressure sampling line is provided with one second protection valve.
Further, the flush switching valve, purging switch valve, the first protection valve and the second protection valve are magnetic valve,
And synchronous signal connection FGD-DCS, FGD-DCS control flush switching valve, purging switch valve, the first protection valve by remote signal
And second protection valve opening and closing.
Further, the protection valve and flush switching valve and purging switch valve linkage, when flush switching valve or purging are opened
While closing the unlatching of valve any of which, protection valve cuts out；Flush switching valve and purging switch valve linkage, when in the two opens
While opening, another closing.
Further, also include being arranged at the discharge duct at the top of the desulfurizing tower, be provided with an air bleeding valve.
Further, by fittings, the protection valve is arranged at for the cleaning scavenging pipeline and differential pressure sampling line
Between the joint and differential pressure transmitter.
By taking above-mentioned technical proposal, using FGD (Flue Gas Desulfurization flue gas desulfurizations)-DCS
The each magnetic valve of (Distributed Control System Distributed Control Systems) long-range sequence, is being protected by the break-make of magnetic valve
While shield demister differential pressure transmitter, control flushing water, compressed air complete the flushing to demister differential pressure sampling line, keep away
Exempt from the generation of sampling line stopping state.Complete to rinse purpose using mist eliminator flushing water, solve single after gypsum deposit is formed
Pure use compressed air cannot complete the problem for clearing up sampling line.Remotely control, timing sequence are completed using FGD-DCS systems
Control.
Description of the drawings
Fig. 1 is the arrangement knot of desulfurizer mist eliminator differential pressure sampling line automatic flushing device in one embodiment of the utility model
Composition.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clear, complete description.
As shown in figure 1, in one embodiment, there is provided 201 differential pressure sampling line auto-flushing of demister in desulfurizing tower 200
Device, in order to rinse a differential pressure sampling line of one differential pressure transmitter 202 of connection, including：It is arranged at the guarantor of differential pressure sampling line
Shield valve；Cleaning scavenging pipeline 104, its one end connect differential pressure sampling line, and the other end connects mist eliminator flushing water lines 102 simultaneously
And a compressed air line 101；Flush switching valve 112 is set in mist eliminator flushing water lines 102；On compressed air line 101
It is provided with purging switch valve 111., by fittings, protection valve is arranged at and connects for cleaning scavenging pipeline 104 and differential pressure sampling line
Between head and differential pressure transmitter 202.
As schemed, differential pressure sampling line includes high-pressure sampling pipeline 204 and low pressure sampling line 203, high-pressure sampling pipeline 204
The first protection valve 114 is provided with, low pressure sampling line 203 is provided with the second protection valve 203.
Wherein, flush switching valve, purging switch valve, the first protection valve and the second protection valve are magnetic valve, are to realize far
Journey is automatically controlled, and this four magnetic valve synchronous signals connect FGD (Flue Gas Desulfurization flue gas desulfurizations)-DCS
(Distributed Control System Distributed Control Systems), FGD-DCS are controlled flush switching valve, are blown by remote signal
Sweep the opening and closing of switch valve, the first protection valve and the second protection valve.The optional following setting of control mode：
Protection valve and flush switching valve and purging switch valve linkage, when flush switching valve or purging switch valve any of which are opened
While opening, protection valve cuts out；Flush switching valve and purging switch valve linkage, while one in the two opens, another
Individual closing.It should be noted that the function of FGD-DCS and control principle, are well known to the skilled person, on having understood
After stating the annexation of embodiment description, those skilled in the art are learnt how naturally by each electromagnetism of FGD-DCS remotely controls
The opening and closing of valve and realize interrelated logic control.
In addition, the discharge duct 105 at the top for also including being arranged at the desulfurizing tower 200, is provided with an air bleeding valve,
Can open in purging and discharge purge gas.The air bleeding valve again may be by FGD-DCS remotely controls.
When differential pressure transmitter is in measuring state：First protection valve 113 and the second protection valve 114 are in open mode, punching
Wash switch valve 112, purging switch valve 111 to be closed, differential pressure speed changer normal work.
When flusher starts, operations described below is realized by FGD-DCS remotely controls：
The first step：Closing first and protecting valve 113 and the second protection valve 114, differential pressure transmitter is protected in flushing process.
Second step：Flush switching valve 112 is opened, switch valve 111 is purged, sampling line is carried out using mist eliminator flushing water
Rinse.
3rd step：Purging switch valve 111 is opened, flush switching valve 112 is closed, using in compressed air purging sampling line
The flushing water of remaining.
The technical scheme of above-described embodiment description, as Jiangsu power plant 300MW units #5 desulfuration absorbing tower demisters are poor
Pressure sampling pipe rinses example of modification.
To sum up, without blow device in traditional desulfuration absorbing tower demister differential pressure measurement pipeline, as tested flue gas is in sampling
Do not flow in pipeline, in flue gas, contained solid, liquid substance easily occur deposition and then cause to block.The utility model is by matching somebody with somebody
Automatic flushing device is put using compressed air and mist eliminator flushing water periodic flushing demister differential pressure sampling line, it is to avoid probe tube
The generation of road stopping state, it is ensured that the accuracy of demister differential pressure measurement, effectively reduces person works' amount.
Obviously, described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.It is based on
Embodiment in the utility model, it is all that those of ordinary skill in the art are obtained under the premise of creative work is not made
Other embodiment, belongs to the scope of the utility model protection.
Claims (6)
1. a kind of desulfurizer mist eliminator differential pressure sampling line automatic flushing device, in order to rinse a difference of one differential pressure transmitter of connection
Pressure sampling line, it is characterised in that include：
It is arranged at the protection valve of the differential pressure sampling line；
One cleaning scavenging pipeline, its one end connect the differential pressure sampling line, and the other end connects a mist eliminator flushing water pipe simultaneously
Road and a compressed air line；
In the mist eliminator flushing water lines, a flush switching valve is set；Purging switch is provided with the compressed air line
Valve.
2. desulfurizer mist eliminator differential pressure sampling line automatic flushing device as claimed in claim 1, it is characterised in that the difference
Pressure sampling line includes that a high-pressure sampling pipeline and a low pressure sampling line, the high-pressure sampling pipeline are provided with one first protection
Valve, the low pressure sampling line are provided with one second protection valve.
3. desulfurizer mist eliminator differential pressure sampling line automatic flushing device as claimed in claim 2, it is characterised in that the punching
Wash switch valve, purging switch valve, the first protection valve and the second protection valve and be magnetic valve, and synchronous signal connection FGD-DCS,
FGD-DCS controls the opening and closing of flush switching valve, purging switch valve, the first protection valve and the second protection valve by remote signal.
4. desulfurizer mist eliminator differential pressure sampling line automatic flushing device as claimed in claim 3, it is characterised in that the guarantor
Shield valve and flush switching valve and purging switch valve linkage, while flush switching valve or purging switch valve any of which are opened,
Protection valve cuts out；Flush switching valve and purging switch valve linkage, while one in the two opens, another closing.
5. desulfurizer mist eliminator differential pressure sampling line automatic flushing device as claimed in claim 1, it is characterised in that also include
The discharge duct being arranged at the top of the desulfurizing tower, is provided with an air bleeding valve.
6. desulfurizer mist eliminator differential pressure sampling line automatic flushing device as claimed in claim 1, it is characterised in that described clear
Scavenging pipeline and differential pressure sampling line are washed by fittings, the protection valve be arranged at the joint and differential pressure transmitter it
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620839037.8U CN206009358U (en) | 2016-08-04 | 2016-08-04 | A kind of desulfurizer mist eliminator differential pressure sampling line automatic flushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620839037.8U CN206009358U (en) | 2016-08-04 | 2016-08-04 | A kind of desulfurizer mist eliminator differential pressure sampling line automatic flushing device |
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| Publication Number | Publication Date |
|---|---|
| CN206009358U true CN206009358U (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620839037.8U Active CN206009358U (en) | 2016-08-04 | 2016-08-04 | A kind of desulfurizer mist eliminator differential pressure sampling line automatic flushing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108001A (en) * | 2017-06-26 | 2019-01-01 | 大唐环境产业集团股份有限公司 | A kind of desulfurizer mist eliminator differential pressure measurement pipeline automatic blowout device and blowing method |
| CN111774381A (en) * | 2020-03-18 | 2020-10-16 | 华电电力科学研究院有限公司 | Automatic purging device for coal-fired power plant hearth pressure switch sampling pipe and control method thereof |
| CN112588735A (en) * | 2020-11-27 | 2021-04-02 | 山东中烟工业有限责任公司 | Online cleaning device and cleaning method for nozzle of charging machine |
-
2016
- 2016-08-04 CN CN201620839037.8U patent/CN206009358U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108001A (en) * | 2017-06-26 | 2019-01-01 | 大唐环境产业集团股份有限公司 | A kind of desulfurizer mist eliminator differential pressure measurement pipeline automatic blowout device and blowing method |
| CN109108001B (en) * | 2017-06-26 | 2023-10-13 | 大唐环境产业集团股份有限公司 | Automatic purging device and purging method for differential pressure measurement pipeline of demister of desulfurizing tower |
| CN111774381A (en) * | 2020-03-18 | 2020-10-16 | 华电电力科学研究院有限公司 | Automatic purging device for coal-fired power plant hearth pressure switch sampling pipe and control method thereof |
| CN111774381B (en) * | 2020-03-18 | 2023-12-05 | 华电电力科学研究院有限公司 | Automatic purging device for sampling tube of hearth pressure switch of coal-fired power plant and control method of automatic purging device |
| CN112588735A (en) * | 2020-11-27 | 2021-04-02 | 山东中烟工业有限责任公司 | Online cleaning device and cleaning method for nozzle of charging machine |
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| GR01 | Patent grant |