CN206972570U - A kind of water circulating pump sequence starts control device - Google Patents
A kind of water circulating pump sequence starts control device Download PDFInfo
- Publication number
- CN206972570U CN206972570U CN201720769794.7U CN201720769794U CN206972570U CN 206972570 U CN206972570 U CN 206972570U CN 201720769794 U CN201720769794 U CN 201720769794U CN 206972570 U CN206972570 U CN 206972570U
- Authority
- CN
- China
- Prior art keywords
- liquid
- pipeline
- rhone
- circulating pump
- level switch
- 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
Landscapes
- Pipeline Systems (AREA)
Abstract
The utility model discloses a kind of water circulating pump sequence to start control device, including circulating pump, outlet hydraulic control disc valve and pipeline, circulating pump pipeline connection, outlet hydraulic butterfly valve is provided between circulating pump and pipeline；Also include rhone and DCS control systems, the top of pipeline is provided with air outlet slit, air outlet slit is connected to rhone, the top of rhone is provided with liquid-level switch and liquid level gauge, the gathered data of liquid-level switch is passed to DCS control systems by liquid-level switch and liquid level gauge by signal isolator, and DCS control systems are handled above value and then control circulating pump and export the start and stop of hydraulic butterfly valve.The utility model has the advantages that：Pipeline emptying valve is connected with rhone by drainage tube, and liquid-level switch is provided with rhone, the level condition in rhone is timely fed back by liquid-level switch, and in this, as judge in pipeline whether full packages, being capable of timely and effectively full packages situation in feedback channel, reduce manual operation, improve operating efficiency.
Description
Technical field
Steam power plant field is the utility model is related to, specifically a kind of water circulating pump sequence starts control device.
Background technology
Every, power plant steam turbine is equipped with corresponding water circulating pump, and it is to supply to cool down to turbine condenser that it, which is acted on,
Water, to cool down the steam discharge of condensing turbine, this external circulation water pump will also provide cooling water source to other heat exchangers, therefore circulate
Water pump has the function that important.The Starting mode of general pump is to start pump under pump discharge door off status, still, due to circulating water
The pipeline of system is longer than in general pipeline, caliber is thick, easily filled with air in pipeline, has air residual air to hold very much in pipeline
Phenomena such as easily will result in water hammer, cavitation, so as to the very big destruction to pipeline, valve even water circulating pump.Therefore follow and pump out
Mouth door is arranged to hydraulic butterfly valve, and the Starting mode of previous cycle water pump is typically following：It is first turned on water circulating pump outlet hydraulic control butterfly
Valve.Then outlet hydraulic butterfly valve is opened 15 °, stops outlet hydraulic butterfly valve.Finally start water circulating pump, toward circulation pipeline
Slow water filling.The Starting mode of previous cycle water pump has following shortcomings：When in the water filling into system pipeline, it is necessary to pass through judgement
Whether it is standard so as to judge to have in pipeline air remaining that whether water in pipeline is full of, and the way of prior art is to need power plant
Whether operations staff removes field observation circulation pipeline emptying valve spill stream, so not only can not be timely anti-
Water whether is filled in feedback pipeline, and consumes substantial amounts of manual work, reduces operating efficiency.
Utility model content
The purpose of this utility model be to provide it is a kind of can in automatic decision pipeline whether the water circulating pump sequence of full packages
Start control device.
To achieve the above object, the utility model provides following technical scheme：
A kind of water circulating pump sequence starts control device, including circulating pump, outlet hydraulic control disc valve and pipeline, the circulating pump
With pipeline communication, outlet hydraulic butterfly valve is provided between circulating pump and pipeline；Also include rhone and DCS control systems, it is described
The top of pipeline is provided with air outlet slit, and the air outlet slit is connected to rhone, and the top of the rhone is provided with liquid level
The gathered data of liquid-level switch is passed to DCS control systems, the DCS controls by switch, liquid-level switch by signal isolator
System controls circulating pump and exports the start and stop of hydraulic butterfly valve.
As further program of the utility model：It is additionally provided with the rhone for measuring water level in rhone
Liquid level gauge, the liquid level gauge give the data transfer of collection to DCS control systems by signal isolator.
As the utility model further scheme：Some tube wall liquid levels are also evenly equipped with the madial wall of the pipeline to open
Close, the tube wall liquid-level switch is arranged on the tip position of the inner side tube wall of pipeline, and the tube wall liquid-level switch passes through signal
Isolator gives the data transfer of collection to DCS control systems.
As the utility model further scheme：The tube wall liquid-level switch is provided with four altogether, four tube wall liquid
Bit switch is distributed in the top of the madial wall of pipeline.
As the utility model further scheme：The bottom of the rhone is also equipped with being used to exclude in rhone
The drain solenoid valve of water, drain solenoid valve are connected by drainage pipeline with underground ditch；The drain solenoid valve by signal every
The data transfer of collection is given to DCS control systems from device.
As the utility model further scheme：The air outlet slit is connected to rhone by drainage tube.
Compared with prior art, the beneficial effects of the utility model are：
1) the utility model is connected pipeline emptying valve with rhone by drainage tube, and liquid is provided with rhone
Bit switch, timely feeds back the level condition in rhone by liquid-level switch, and in this, as judging in pipeline
Whether full packages, can timely and effectively full packages situation in feedback channel, reduce manual operation, improve work
Efficiency.
2) the utility model and multiple liquid-level switches are disposed with the side wall of pipeline, are further detected with this in pipeline
Full packages whether, so as to improve the precision of judgement.
3) the detection data of liquid-level switch are passed to DCS control systems by the utility model, and pass through DCS control systems
Carry out being uniformly controlled the operation for realizing automation.
4) the utility model sets drain solenoid valve in rhone bottom, and controls draining, side by DCS control systems
Rhone draining, provide condition for loop start next time.
Brief description of the drawings
Fig. 1 is the structural representation that the present embodiment water circulating pump sequence starts control device.
Fig. 2 is the mounting structure schematic diagram that the present embodiment water circulating pump sequence starts tube wall liquid-level switch in control device.
In figure：1- circulating pumps, 2- go out oral fluid butterfly valve, 3- pipelines, 4- rhones, 5- drainage tubes, 31- air outlet slits, 32- pipes
Wall liquid-level switch, 41- liquid-level switches, 42- liquid level gauges, 43- drain solenoid valves, 44- drainage pipelines.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Referring to Fig. 1, a kind of water circulating pump sequence starts control device, including circulating pump 1, outlet hydraulic control disc valve 2, pipeline
3rd, rhone 4 and DCS control systems, the circulating pump 1 are connected with pipeline 3, and oral fluid is provided with out between circulating pump 1 and pipeline 3
Control butterfly valve 2；The top of the pipeline 3 is provided with air outlet slit 31, and the air outlet slit 31 is connected to rhone by drainage tube 5
4, the top of the rhone 4 is provided with liquid-level switch 41, the adopting liquid-level switch 41 by signal isolator of liquid-level switch 41
Collection data transfer gives DCS control systems, the DCS control systems control circulating pump 1 and the start and stop for exporting hydraulic butterfly valve 2；
Liquid level gauge 42 is additionally provided with the rhone 4, the liquid level gauge 42 is used to measure the water level in rhone 42；Institute
The bottom for stating rhone 4 is also equipped with drain solenoid valve 43 for excluding water in rhone 4, and drain solenoid valve 43 passes through draining
Pipeline 44 is connected with underground ditch, and the water in rhone 4 is introduced into underground ditch；The drain solenoid valve 43 and liquid level gauge 42 are equal
The data transfer of collection is given to DCS control systems by signal isolator；When liquid level gauge 42 reaches certain numerical value, namely rhone
Water level in 4 could start circulating pump 1 and outlet hydraulic butterfly valve 2 after reaching a certain height by DCS control systems；
Referring to Fig. 2, some tube wall liquid-level switches 32 are also evenly equipped with the madial wall of the pipeline 3, the tube wall liquid level
Switch 32 is arranged on the tip position of the inner side tube wall of pipeline 3, and the setting of tube wall liquid-level switch 32 being capable of further monitoring pipe
Whether the water in road 3 is full of, and avoids the occurrence of that rhone 4 is full, but does not have full situation in pipeline 3 also in fact；The tube wall liquid
Bit switch 32 gives the data transfer of collection to DCS control systems by signal isolator, only simultaneously meet liquid-level switch 41,
Circulating pump 1 and outlet hydraulic butterfly valve could be started after the requirement of tube wall liquid-level switch 32 and liquid level gauge 42 by DCS control systems
2；So improve the precision of manipulation.
Preferably the tube wall liquid-level switch 32 is provided with four altogether, and four tube wall liquid-level switches 32 are spaced apart
At the top of the madial wall of pipeline 3.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge
Make a variety of changes.
Claims (6)
1. a kind of water circulating pump sequence starts control device, including circulating pump (1), outlet hydraulic butterfly valve (2) and pipeline (3), institute
State circulating pump (1) to connect with pipeline (3), outlet hydraulic butterfly valve (2) is provided between circulating pump (1) and pipeline (3)；Its feature exists
In, in addition to rhone (4) and DCS control systems, the top of the pipeline (3) be provided with air outlet slit (31), the air
Outlet (31) is connected to rhone (4), and the top of the rhone (4) is provided with liquid-level switch (41), and liquid-level switch (41) is logical
Cross signal isolator and the gathered data of liquid-level switch (41) is passed into DCS control systems, the DCS control systems control circulation
The start and stop of pump (1) and outlet hydraulic butterfly valve (2).
2. water circulating pump sequence according to claim 1 starts control device, it is characterised in that in the rhone (4)
The liquid level gauge (42) for measuring rhone (4) interior water level is additionally provided with, the liquid level gauge (42) will adopt by signal isolator
The data transfer of collection gives DCS control systems.
3. water circulating pump sequence according to claim 1 or 2 starts control device, it is characterised in that the pipeline (3)
Some tube wall liquid-level switches (32) are also evenly equipped with madial wall, the tube wall liquid-level switch (32) is arranged on the inner side of pipeline (3)
The tip position of tube wall, the tube wall liquid-level switch (32) are controlled the data transfer of collection to DCS by signal isolator
System.
4. water circulating pump sequence according to claim 3 starts control device, it is characterised in that the tube wall liquid-level switch
(32) four are provided with altogether, and four tube wall liquid-level switches (32) are distributed in the top of the madial wall of pipeline (3).
5. water circulating pump sequence according to claim 1 starts control device, it is characterised in that the rhone (4)
Bottom is also equipped with being used for the drain solenoid valve (43) for excluding rhone (4) interior water, and drain solenoid valve (43) passes through drainage pipeline
(44) connected with underground ditch；The drain solenoid valve (43) is controlled the data transfer of collection to DCS by signal isolator
System.
6. water circulating pump sequence according to claim 1 starts control device, it is characterised in that the air outlet slit (31)
Rhone (4) is connected to by drainage tube (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720769794.7U CN206972570U (en) | 2017-06-29 | 2017-06-29 | A kind of water circulating pump sequence starts control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720769794.7U CN206972570U (en) | 2017-06-29 | 2017-06-29 | A kind of water circulating pump sequence starts control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206972570U true CN206972570U (en) | 2018-02-06 |
Family
ID=61405987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720769794.7U Expired - Fee Related CN206972570U (en) | 2017-06-29 | 2017-06-29 | A kind of water circulating pump sequence starts control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206972570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943636A (en) * | 2021-01-29 | 2021-06-11 | 华能国际电力股份有限公司营口电厂 | Method for quickly starting circulating pump of wet desulphurization system |
-
2017
- 2017-06-29 CN CN201720769794.7U patent/CN206972570U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943636A (en) * | 2021-01-29 | 2021-06-11 | 华能国际电力股份有限公司营口电厂 | Method for quickly starting circulating pump of wet desulphurization system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105155651A (en) | Negative pressure drainage system and drainage method | |
| CN206972570U (en) | A kind of water circulating pump sequence starts control device | |
| CN102976253A (en) | Gravity automatic-liquid supplement device | |
| CN204461979U (en) | A kind of recirculating cooling water system on-line corrosion monitoring system | |
| CN102230292B (en) | Circulation cooling device for chute of soda recovery furnace | |
| CN205296301U (en) | No negative pressure water supply equipment of pressure -stabilizing box formula intelligence | |
| CN207123483U (en) | Automatic liquid supply device | |
| CN203784920U (en) | Water level regulation device of sealing water multilevel water seal of water feed pump | |
| CN104154774A (en) | Condenser circulating water system capable of automatically exhausting air | |
| CN204476757U (en) | A kind of Root's compressor and brewing spirit energy conserving system | |
| CN201309897Y (en) | Benzyl chloride continuous chlorination automatic control device | |
| CN206871403U (en) | A kind of feed back control device | |
| CN102345857A (en) | Condensate water recovery device | |
| CN207178701U (en) | Can sterilization system on line and sterile topping up mechanical seal cooling recirculation system | |
| CN201855585U (en) | Liquid level controlling system for rectifying column | |
| CN207610199U (en) | Drain tank water level balanee device | |
| CN207253519U (en) | One kind drainage liquor collecting device | |
| CN206479823U (en) | Machine envelope cooling automatic control protecting device | |
| CN219493869U (en) | Device for draining liquid in negative pressure gas pipeline | |
| CN203006905U (en) | Automatic gravity liquid supplementary device | |
| CN205533056U (en) | Drawing liquid composite set of pump and siphon jar | |
| CN213451767U (en) | Stop valve with double-sealing structure | |
| CN208237156U (en) | A kind of air admission valve liquid seal device with level gauging function | |
| CN202046893U (en) | Chlorsilane condensation storage device | |
| CN114413178B (en) | Automatic liquid supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180206 Termination date: 20180629 |