CN205538367U - Automatic purge system - Google Patents
Automatic purge system Download PDFInfo
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- CN205538367U CN205538367U CN201620055502.9U CN201620055502U CN205538367U CN 205538367 U CN205538367 U CN 205538367U CN 201620055502 U CN201620055502 U CN 201620055502U CN 205538367 U CN205538367 U CN 205538367U
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- valve
- monomer
- air inlet
- air
- solenoid valve
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Abstract
The utility model provides an automatic purge system, including PLC controller and three solenoid valve, three solenoid valve has the electromagnetism disk seat, electromagnetism disk seat facial make -up has a plurality of monomer valve, be equipped with the air inlet and the drain of each monomer valve of intercommunication on the electromagnetism disk seat, the air inlet of electromagnetism disk seat passes through intake pipe intercommunication gas holder or air pump, is equipped with air solenoid valve in the intake pipe, and the drain of electromagnetism disk seat passes through the main sewage pipes of blow off pipe intercommunication, is equipped with the blowoff valve on the blow off pipe, the one end of every monomer valve communicates the gaseous wind channel of awaiting measuring through the sampling pipe, and the other end passes through detecting tube intercommunication pressure transmitter, PLC controller separately -driven connects each monomer valve and air solenoid valve and blowoff valve, the utility model discloses simple structure, design benefit, sweep the in -process to compressed air's pressure stability require low, do not need the manual work to make regular check on, realized sweeping regularly automatically, long -range manual sweep and the automatic of greasy dirt is discharged, has made things convenient for the monitoring personnel to know the state of sweeping of each measurement station in real time.
Description
Technical field
This utility model relates to automatic control technology field, especially a kind of automatic blowing system.
Background technology
Currently, power plant mainly uses compensation blow device effusion meter to purge its boiler side air channel, see Fig. 1, this compensation blow device effusion meter has control chamber 1, control chamber 1 is provided with air inlet 2 and gas outlet 3, and equipped with glass rotameter 4 and permanent flow valve 5 and pressure regulation moisture trap 6 in control chamber 1, wherein pipeline communication air inlet 2 is passed through in one end of permanent flow valve 5, the other end passes through pipeline communication pressure regulation moisture trap 6, pipeline communication gas outlet 3 is passed through in the opposite end of pressure regulation moisture trap 6, glass rotameter 4 is arranged on permanent flow valve 5, gas outlet 3 connects boiler side air channel 8 by gas sampler 7, and have transmitter 9 by pipeline communication on gas sampler 7, transmitter 9 is for gathering the parameter information of gas in boiler side air channel 8.
When being passed through the few compressed air of stable gas pressure, oil content to the air inlet of above-mentioned compensation blow device effusion meter, gas sampler has preferable blockage resisting effect.But, the compressed air air pressure that once air inlet is passed through changes, and GAS QUALITY is poor, oil content height time, easily cause gas sampler to block, need manually periodically oil extraction, adjust air pressure and gas flow, waste time and energy, otherwise, gas sampling blockage once occurs, needing staff manually to purge, maintenance is bigger.
Summary of the invention
The purpose of this utility model seeks to solve currently employed compensation blow device effusion meter when purging the gas sampler on boiler side air channel, gas sampler is caused easily to block owing to compressed air air pressure is unstable, GAS QUALITY is poor and oil content is high, staff is needed manually to purge, and the problem wasted time and energy, provides the air pressure of a kind of air the most by compression, GAS QUALITY and the automatic blowing system of oil content impact for this.
Concrete scheme of the present utility model is: a kind of automatic blowing system, it is characterized in that: include PLC and three-way magnetic valve, and three-way magnetic valve has solenoid valve seat, equipped with several monomer valve on solenoid valve seat；Solenoid valve seat is communicated with air inlet and the sewage draining exit of each monomer valve, the air inlet of solenoid valve seat is by air inlet pipe connection air accumulator or air pump, equipped with air inlet electromagnetic valve in air inlet pipe, the sewage draining exit of solenoid valve seat connects main blow-off line by blow-off pipe, equipped with blowoff valve on blow-off pipe；One end of each monomer valve connects the air channel of gas to be measured by sampling tube, and the other end is by detection pipe connection pressure transmitter；Described PLC distinguishes each monomer valve of drive connection and air inlet electromagnetic valve and blowoff valve.
In this utility model, automatic blowing system also includes DCS control system, DCS control system connects PLC by ethernet communication, purging state for the monomer valve corresponding to each measuring point of real-time reception PLC feedback, automatically keep the instantaneous value of each measuring point, and realize remote manual and control the purging state of the monomer valve corresponding to each measuring point.
This utility model is equipped with normally opened valve for controlling sampling tube and the detection connection of pipe and shutoff in each monomer valve, each monomer valve is equipped with normal closed gate equipped with between one end and the air inlet of solenoid valve seat of sampling tube；When the coil of monomer valve obtains electric, normally opened valve closes, and normal closed gate is opened.
This utility model simple in construction, design ingenious, achieve and timing automatic purging and the remote manual of the sampling tube of different measuring points on air channel are controlled purging and to the automatic-discharging of greasy dirt in three-way magnetic valve, facilitate monitoring personnel and recognize the purging state of each measuring point in real time, and purging during low to compressed-air actuated pressure stability requirements, need not human at periodic intervals check, thoroughly solve the problem when gas sampler on boiler side air channel is purged by currently employed compensation blow device effusion meter, gas sampling blockage easily occurring.
Accompanying drawing explanation
Fig. 1 is the structural representation of compensation blow device effusion meter in prior art；
Fig. 2 is structural representation of the present utility model；
Fig. 3 is control structure block diagram of the present utility model.
In figure: 1 control chamber, 2 air inlets, 3 gas outlets, 4 glass rotameters, 5 permanent flow valves, 6 pressure regulation moisture traps, 7 gas samplers, 8 boiler side air channels, 9 transmitters, 10 PLC, 11 three-way magnetic valves, 11a solenoid valve seat, 11b monomer valve 11b, 12 air inlet pipe, 13 air accumulators or air pump, 14 air inlet electromagnetic valves, 15 blow-off pipes, 16 main blow-off lines, 17 blowoff valves, 18 sampling tubes, 19 air channels, 20 detection pipes, 21 pressure transmitters, 22 DCS control systems.
Detailed description of the invention
See Fig. 2-3, this utility model includes PLC 10 and three-way magnetic valve 11, and three-way magnetic valve 11 has solenoid valve seat 11a, on solenoid valve seat 11a equipped with several monomer valve 11b(in figure 3, monomer valve 11b is provided with four, respectively monomer valve A, B, C, D)；Solenoid valve seat 11a is communicated with air inlet and the sewage draining exit of each monomer valve 11b, the air inlet of solenoid valve seat 11a connects air accumulator or air pump 13 by air inlet pipe 12, equipped with air inlet electromagnetic valve 14 in air inlet pipe 12, the sewage draining exit of solenoid valve seat 11a connects main blow-off line 16, equipped with blowoff valve 17 on blow-off pipe 15 by blow-off pipe 15；One end of each monomer valve 11b connects the air channel 19 of gas to be measured by sampling tube 18, and the other end connects pressure transmitter 21 by detection pipe 20, and pressure transmitter 21 is for detecting the air pressure of gas to be measured in air channel 19；Described PLC 10 distinguishes each monomer valve 11b of drive connection and air inlet electromagnetic valve 14 and blowoff valve 17.
In the present embodiment, automatic blowing system also includes DCS control system 22, DCS control system 22 connects PLC 10 by ethernet communication, purging state for monomer valve 11b corresponding to each measuring point of real-time reception PLC 10 feedback, automatically keep the instantaneous value of each measuring point, and realize remote manual and control the purging state of each monomer valve 11b.
The present embodiment is equipped with normally opened valve for controlling connection and the shutoff of sampling tube 18 and detection pipe 20 in each monomer valve 11b, each monomer valve 11b is equipped with normal closed gate equipped with between one end and the air inlet of solenoid valve seat 11a of sampling tube 18.
When automatic blowing system is in normal mode, the coil of monomer valve 11b must not be electric, and the normally opened valve of monomer valve 11b is in open mode, and normal closed gate is off state, now sampling tube 18 connects with detection pipe 20, and the air pressure of gas in air channel 19 to be purged monitored in real time by pressure transmitter 21；
When automatic blowing system is in purge mode, the purging state of real-time monomer valve 11b fed back to DCS control system 22 corresponding to each measuring point of PLC 10, DCS control system 22 keeps the instantaneous value of each measuring point automatically, until the purging state of measuring point disappears；Meanwhile, PLC 10 controls to open air inlet electromagnetic valve 14, compressed air in air accumulator or air pump 13 enters in three-way magnetic valve 11 by air inlet pipe 12, and turn off after controlling to open blowoff valve 17 blowdown a period of time, control each monomer valve 11b coil the most one by one and obtain electric, the normally opened valve making each monomer valve 11b turns off, normal closed gate is opened, thus realizes the purging operation to the sampling tube 18 on each measuring point on air channel 19 one by one；The most also can control to purge the pipeline of one of them measuring point up-sampling pipe 18 by DCS control system 22 remote manual.
Claims (3)
1. an automatic blowing system, is characterized in that: include PLC and three-way magnetic valve, and three-way magnetic valve has solenoid valve seat, equipped with several monomer valve on solenoid valve seat；Solenoid valve seat is communicated with air inlet and the sewage draining exit of each monomer valve, the air inlet of solenoid valve seat is by air inlet pipe connection air accumulator or air pump, equipped with air inlet electromagnetic valve in air inlet pipe, the sewage draining exit of solenoid valve seat connects main blow-off line by blow-off pipe, equipped with blowoff valve on blow-off pipe；One end of each monomer valve connects the air channel of gas to be measured by sampling tube, and the other end is by detection pipe connection pressure transmitter；Described PLC distinguishes each monomer valve of drive connection and air inlet electromagnetic valve and blowoff valve.
A kind of automatic blowing system the most according to claim 1, it is characterized in that: automatic blowing system also includes DCS control system, DCS control system connects PLC by ethernet communication, purging state for the monomer valve corresponding to each measuring point of real-time reception PLC feedback, automatically keep the instantaneous value of each measuring point, and realize remote manual and control the purging state of the monomer valve corresponding to each measuring point.
A kind of automatic blowing system the most according to claim 1, it is characterized in that: each monomer valve is equipped with normally opened valve for controlling sampling tube and the detection connection of pipe and shutoff, each monomer valve is equipped with normal closed gate equipped with between one end and the air inlet of solenoid valve seat of sampling tube；When the coil of monomer valve obtains electric, normally opened valve closes, and normal closed gate is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620055502.9U CN205538367U (en) | 2016-01-21 | 2016-01-21 | Automatic purge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620055502.9U CN205538367U (en) | 2016-01-21 | 2016-01-21 | Automatic purge system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538367U true CN205538367U (en) | 2016-08-31 |
Family
ID=56766001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620055502.9U Expired - Fee Related CN205538367U (en) | 2016-01-21 | 2016-01-21 | Automatic purge system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205538367U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670191A (en) * | 2017-03-09 | 2017-05-17 | 聊城信源集团有限公司 | Anti-blocking device for high-dust measuring pressure tapping pipeline |
| CN112859729A (en) * | 2021-01-18 | 2021-05-28 | 杭州好一科技有限公司 | Circuit structure for multi-path sharing of DO port |
-
2016
- 2016-01-21 CN CN201620055502.9U patent/CN205538367U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670191A (en) * | 2017-03-09 | 2017-05-17 | 聊城信源集团有限公司 | Anti-blocking device for high-dust measuring pressure tapping pipeline |
| CN112859729A (en) * | 2021-01-18 | 2021-05-28 | 杭州好一科技有限公司 | Circuit structure for multi-path sharing of DO port |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20180121 |