CN205876740U - Boiler feed pump interlocking protection device - Google Patents
Boiler feed pump interlocking protection device Download PDFInfo
- Publication number
- CN205876740U CN205876740U CN201620892727.XU CN201620892727U CN205876740U CN 205876740 U CN205876740 U CN 205876740U CN 201620892727 U CN201620892727 U CN 201620892727U CN 205876740 U CN205876740 U CN 205876740U
- Authority
- CN
- China
- Prior art keywords
- feed pump
- steam
- control system
- boiler
- dcs control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims description 23
- 230000001681 protective effect Effects 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 4
- 230000009191 jumping Effects 0.000 claims 1
- 230000006698 induction Effects 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- 239000008400 supply water Substances 0.000 abstract 1
- 238000012546 transfer Methods 0.000 abstract 1
- 230000003020 moisturizing effect Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model provides a boiler feed pump interlocking protection device, includes and is connected with steam feed pump and electric feed water pump by the low pressure delivery pipe on the low pressure delivery pipe, and steam feed pump and electric feed water pump's the other end and high pressure supply water piping connection, and high -pressure delivery pipe is connected with the boiler -steam dome, still include DCS control system, DCS control system passes through the steam -operating and is connected for the pump control ware with the steam feed pump, receives the operation and the tripping operation signal of steam feed pump, and opening of steam feed pump of control is stopped, and DCS control system still is connected with electric feed water pump through the induction motor soft starter controller, and opening of electric feed water pump of control is stopped, be equipped with the instrumentation test device on the steam feed pump, the instrumentation test device is connected with DCS control system, transferes DCS control system with the signal that detects. The utility model provides a boiler feed pump interlocking protection device under the prerequisite of guaranteeing steam feed pump body safety, has solved other equipment received when the steam feed pump body is interlocked harm and the threat to producing.
Description
Technical field
This utility model relates to a kind of protection device, particularly a kind of boiler feed pump interlocking protective device.
Background technology
In boiler water-feeding device, steam feed pump and electrically driven feed pump are simultaneously coupled on low pressure feed water pipe, pass through high pressure
Feed pipe supplies water to steam generator system, utilizes Boiler Steam to drive steam feed pump action, it is achieved moisturizing, steam-operating is given under normal condition
Water pump is owing to carrying interlock control system, it is possible that the tripping operation of monomer instrument point failure, and if closing the most not in time
Steam feed pump outlet valve, can form very big pressure reduction, cause the pump housing to invert between high service pipe and feed pump import, damage
Bad equipment, if moisturizing simultaneously is not in time, can cause boiler-steam dome dehydration, and boiler stops, and produces and is forced to interrupt.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of boiler feed pump interlocking protective device, is ensureing vapour
On the premise of dynamic feed pump ontological security, solve other equipment are subject to when steam feed pump body is interlocked infringement and to life
The threat produced.
For solving above-mentioned technical problem, this utility model be the technical scheme is that a kind of boiler feed pump interlocking is protected
Protection unit, including low pressure feed pipe, connects on low pressure feed pipe and has steam feed pump and an electrically driven feed pump, steam feed pump and
The other end of electrically driven feed pump is connected with high service pipe, and high service pipe is connected with boiler-steam dome；Also include that DCS controls system
System, DCS control system is connected with steam feed pump by steam feed pump controller, receives operation and the tripping operation of steam feed pump
Signal, controls the start and stop of steam feed pump, and DCS control system is connected with electrically driven feed pump also by motor soft start controller,
Control the start and stop of electrically driven feed pump；Described steam feed pump is provided with instrument detection device, and instrument detection device controls system with DCS
System connects, and the signal detected is passed to DCS control system.
Preferably, described instrument detection device can be polytype.
Preferably, described instrument detection device same kind is provided with two or three.
Preferably, described instrument detection device is vibrating sensor, and model is JS-V-36；Described instrument detection device is
Shaft position sensor, model is 3301080-50-00.
Preferably, the first water inlet electricity it is respectively equipped with between described low pressure feed pipe and steam feed pump and electrically driven feed pump
Magnet valve and the second water inlet solenoid valve；It is respectively equipped with first between described high service pipe and steam feed pump and electrically driven feed pump
Water outlet solenoid valve and the second water outlet solenoid valve；First water inlet solenoid valve, the first water outlet solenoid valve, the second water inlet electricity
Magnet valve, the second water outlet solenoid valve are all connected with DCS control system.
Preferably, described DCS control system is built-in with interlock program.
This utility model provides a kind of boiler feed pump interlocking protective device, based on DCS system platform, it is achieved that DCS is same
Steam feed pump and the interconnection of electrically driven feed pump, ensured the safety of system effectively, effective data can be provided to supply simultaneously
Operator judges pump housing operation conditions, it is ensured that stable, the Effec-tive Function of the pump housing.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structured flowchart of this utility model control part；
In figure: low pressure feed pipe (1), high service pipe (2), steam feed pump (3), electrically driven feed pump (4), the first water inlet
Mouth electromagnetic valve (5), the first water outlet solenoid valve (6), the second water inlet solenoid valve (7), the second water outlet solenoid valve (8), boiler
Drum (9), DCS control system (10), motor soft start controller (11), steam feed pump controller (12), instrument detection dress
Put (13).
Detailed description of the invention
As shown in Figure 1-2, a kind of boiler feed pump interlocking protective device, including low pressure feed pipe 1, at low pressure feed pipe 1
Upper connection has steam feed pump 3 and electrically driven feed pump 4, the other end of steam feed pump 3 and electrically driven feed pump 4 and high service pipe
2 connect, and high service pipe 2 is connected with boiler-steam dome 9；Also include that DCS control system 10, DCS control system 10 are given by steam-operating
Water pump controller 12 is connected with steam feed pump 3, receives operation and the trip signal of steam feed pump 3, controls steam feed pump 3
Start and stop, DCS control system 10 is connected with electrically driven feed pump 4 also by motor soft start controller 11, control electrically driven feed pump 4
Start and stop；Described steam feed pump 3 is provided with instrument detection device 13, and instrument detection device 13 is connected with DCS control system 10,
The signal detected is passed to DCS control system 10.
Preferably, described instrument detection device 13 can be polytype.
Preferably, described instrument detection device 13 same kind is provided with two or three.
Preferably, described instrument detection device is vibrating sensor, and model is JS-V-36；Described instrument detection device is
Shaft position sensor, model is 3301080-50-00.
Preferably, it is respectively equipped with the first water inlet between described low pressure feed pipe 1 and steam feed pump 3 and electrically driven feed pump 4
Mouth electromagnetic valve 5 and the second water inlet solenoid valve 7；Divide between described high service pipe 2 and steam feed pump 3 and electrically driven feed pump 4
It is not provided with the first water outlet solenoid valve 6 and the second water outlet solenoid valve 8；First water inlet solenoid valve the 5, first water outlet solenoid valve
6, second water inlet solenoid valve the 7, second water outlet solenoid valve 8 is all connected with DCS control system 10.DCS control system 10 controls
The switch of electromagnetic valve.
Preferably, described DCS control system 10 is built-in with interlock program.
Steam feed pump 3 trips suddenly and threatens relatively greatly producing, and owing to the stability of instrumentation is not absolute, only adopts
Not strong as the science of interlock condition with an instrument detection device 13, so the list cancelled in steam feed pump controller 12
Point interlocking, changes original instrument detection device 13 into two or three, being signally attached in DCS control system 10,
Use two take two or the mode of two from three carry out interlocking and judge, then interlock shutdown signal is transferred to steam feed pump controller
11, it is to avoid the steam feed pump that instrument Single Point of Faliure causes interlocking misoperation to be caused stops, and improves the reliability of interlock system；
DCS control system 10 is also easier to detection and record to instrumented data simultaneously, and operator can be led on computer monitor picture
Or actually cross the fault more more intuitively judging the instrumentation fault pump housing of several instrument detection device 13 data,
Thus carry out relevant treatment in time, it is ensured that the safety of equipment and the stable operation of production.
Steam feed pump controller 11 is not conducive to control other associate devices, contacts with other equipment for pump body,
DCS control system 10 is used to be easier to realize.Once steam feed pump 3 trips, and DCS control system 10 receives steam feed pump
The signal of 3 tripping operations, closes the first water outlet solenoid valve 6 immediately, prevents the steam-operating that steam feed pump 3 inlet outlet pressure differential causes greatly
Feed pump 3 inverts, it is ensured that the safety of pump housing equipment；Open electrically driven feed pump 4 the most immediately, postpone a period of time (according to electronic
The normal required time that starts of pump is set) after open the second water outlet solenoid valve 8, feedwater in time ensures boiler-steam dome 9 liquid
Position is within normal range, thus ensures the even running produced.
This interlock system is based on DCS system platform, it is achieved that DCS is with the interconnection of steam feed pump control system, effectively
Ensure the safety of the feed water system of boiler, effective observation data can be provided simultaneously to judge pump housing operation conditions for operator,
Ensure that stable, the Effec-tive Function of the pump housing.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as the restriction for the present invention, this
The technical scheme that bright protection domain should be recorded with claim, including technical characteristic in the technical scheme that claim is recorded
Equivalents is protection domain.Equivalent the most in this range is improved, also within protection scope of the present invention.
Claims (6)
1. a boiler feed pump interlocking protective device, its spy is: include low pressure feed pipe (1), on low pressure feed pipe (1)
Connect and have steam feed pump (3) and electrically driven feed pump (4), steam feed pump (3) and the other end of electrically driven feed pump (4) and high pressure
Feed pipe (2) connects, and high service pipe (2) is connected with boiler-steam dome (9)；Also including DCS control system (10), DCS controls system
System (10) is connected with steam feed pump (3) by steam feed pump controller (12), receives operation and the jumping of steam feed pump (3)
Lock signal, controls the start and stop of steam feed pump (3), and DCS control system (10) is also by motor soft start controller (11) and electricity
Dynamic feed pump (4) connects, and controls the start and stop of electrically driven feed pump (4)；Described steam feed pump (3) is provided with instrument detection device
(13), instrument detection device (13) is connected with DCS control system (10), and the signal detected is passed to DCS control system (10).
The most according to claim 1, a kind of boiler feed pump interlocking protective device, its spy is: described instrument detection device
(13) can be polytype.
The most according to claim 2, a kind of boiler feed pump interlocking protective device, its spy is: described instrument detection device
(13) same kind is provided with two or three.
4., according to boiler feed pump interlocking protective device a kind of described in claims 1 to 3 any one, its spy is: described instrument
Table detection device is vibrating sensor, and model is JS-V-36；Described instrument detection device is shaft position sensor, and model is
3301080-50-00。
The most according to claim 1, a kind of boiler feed pump interlocking protective device, its spy is: described low pressure feed pipe (1)
And it is respectively equipped with the first water inlet solenoid valve (5) and the second water inlet electromagnetism between steam feed pump (3) and electrically driven feed pump (4)
Valve (7)；The first outlet electricity it is respectively equipped with between described high service pipe (2) and steam feed pump (3) and electrically driven feed pump (4)
Magnet valve (6) and the second water outlet solenoid valve (8)；First water inlet solenoid valve (5), the first water outlet solenoid valve (6), the second water inlet
Mouth electromagnetic valve (7), the second water outlet solenoid valve (8) are all connected with DCS control system (10).
The most according to claim 1, a kind of boiler feed pump interlocking protective device, its spy is: described DCS control system
(10) it is built-in with interlock program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620892727.XU CN205876740U (en) | 2016-08-17 | 2016-08-17 | Boiler feed pump interlocking protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620892727.XU CN205876740U (en) | 2016-08-17 | 2016-08-17 | Boiler feed pump interlocking protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205876740U true CN205876740U (en) | 2017-01-11 |
Family
ID=57705239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620892727.XU Expired - Fee Related CN205876740U (en) | 2016-08-17 | 2016-08-17 | Boiler feed pump interlocking protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205876740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464924A (en) * | 2021-07-27 | 2021-10-01 | 山西沃能化工科技有限公司 | Method for improving stability of boiler feed water |
-
2016
- 2016-08-17 CN CN201620892727.XU patent/CN205876740U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464924A (en) * | 2021-07-27 | 2021-10-01 | 山西沃能化工科技有限公司 | Method for improving stability of boiler feed water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 |