CN108561300A - Feed pump operation method and system - Google Patents
Feed pump operation method and system Download PDFInfo
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- CN108561300A CN108561300A CN201810270982.4A CN201810270982A CN108561300A CN 108561300 A CN108561300 A CN 108561300A CN 201810270982 A CN201810270982 A CN 201810270982A CN 108561300 A CN108561300 A CN 108561300A
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- pump
- aperture
- primary
- feed pump
- scoop tube
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The present invention provides a kind of feed pump operation method and systems, belong to feed pump running technology field.The feed pump operation method includes：In the case of primary Feed Pump Trip, connection opens the auxiliary feed water pump being in the primary feed pump of tripping on same active section；And the aperture of the corresponding scoop tube of the auxiliary feed water pump that opens is adjusted and joined according to aperture of the corresponding scoop tube of the primary feed pump in the primary Feed Pump Trip.It realizes and starts another feed pump rapidly in the case of a water supply failure of pump, substantially increase water supply system operational reliability and set steady.
Description
Technical field
The present invention relates to feed pump running technology fields, more particularly to a kind of feed pump operation method and system.
Background technology
3 50% electrically driven feed pumps are usually used in existing water supply system, and are run in such a way that dual-purpose one is standby.Unit exists
When underload, it is two electric pump low speed operations under normal circumstances, is highly detrimental to the energy saving of motor, will certainly cause to a certain degree
Waste.
Also, feed pump is run by the way of standby using dual-purpose one at present, stand-by pump connection opens too slowly, and the big interlocking of feed pump can not
Input needs to run two electric pumps at present when 50% load of unit, and the allowance of water supply pump motor is larger, single to pump peak load work
Under condition (180MW), motor still has allowance, can be seen that it is linear preferable from the relation curve of coupling device scoop tube aperture and rotating speed,
Scoop tube maximum opening only has 73.72%, so still there is very big allowance.Thus, using the existing feed pump method of operation, can cause
Station service power consumption rate is higher to cannot be satisfied the normal production run requirement of unit.
In addition, electrically driven feed pump is the large electricity consumer in power plant, electricity consumption accounts for 30% or more of station-service electricity, and unit has
Long period is in the underrun stage.During underrun, feedwater flow is less, be susceptible to two feed pumps rob it is negative
Lotus runs and the unstable security risk of system occurs.
Invention content
The object of the present invention is to provide a kind of feed pump operation method and systems, start auxiliary feed water pump rapidly for solving
The problem of.
To achieve the goals above, the present invention provides a kind of feed pump operation method, this method includes：In primary water supply
In the case of pump tripping, connection opens the auxiliary feed water pump being in the primary feed pump of tripping on same active section；And according to institute
Aperture of the corresponding scoop tube of primary feed pump in the primary Feed Pump Trip is stated to adjust the reserve feed opened with connection
Pump the aperture of corresponding scoop tube.
Preferably, this method further includes：The aperture for monitoring the corresponding scoop tube of the primary feed pump in real time, to obtain
State aperture of the corresponding scoop tube of primary feed pump in tripping.
Preferably, the aperture according to the corresponding scoop tube of the primary feed pump in the primary Feed Pump Trip come
The aperture of adjustment scoop tube corresponding with the auxiliary feed water pump that opens is joined includes：In the case of the primary Feed Pump Trip,
The aperture for the corresponding scoop tube of the auxiliary feed water pump that adjustment connection opens is predetermined aperture；And it primary is given according to the described of tripping
Aperture of the corresponding scoop tube of water pump in the primary Feed Pump Trip adjusts opening for the corresponding scoop tube of the auxiliary feed water pump
Degree.
Preferably, the corresponding scoop tube of the primary feed pump of the basis and tripping is in the primary Feed Pump Trip
Aperture include come the aperture for adjusting the corresponding scoop tube of the auxiliary feed water pump：It trips in a primary water supply pump operation
In the case of, the aperture for the corresponding scoop tube of the auxiliary feed water pump that adjustment connection opens is that the corresponding scoop tube of the primary feed pump exists
Aperture when the primary Feed Pump Trip；And wherein primary Feed Pump Trip in two primary water supply pump operations
In the case of, the aperture that adjusts the corresponding scoop tube of the auxiliary feed water pump be one in two primary feed pumps it is primary to
Higher value in the aperture of the corresponding scoop tube of two primary feed pumps described in when water pump trips.
Preferably, this method further includes：In the case that there is two auxiliary feed water pumps in a primary water supply pump operation,
The switching signal for monitoring two auxiliary feed water pumps in real time, in the case of the primary Feed Pump Trip, connection opens described two
Switching signal is the auxiliary feed water pump to close a floodgate in platform auxiliary feed water pump.
Correspondingly, the present invention also provides a kind of feed pump operating system, which includes：Control device, in master
In the case of Feed Pump Trip, connection opens the auxiliary feed water pump being in the primary feed pump of tripping on same active section；And
Opening adjusting device, for being adjusted according to aperture of the corresponding scoop tube of the primary feed pump in the primary Feed Pump Trip
The aperture of whole scoop tube corresponding with the auxiliary feed water pump that opens of connection.
Preferably, which further includes：First monitoring device, for monitoring the corresponding scoop tube of the primary feed pump in real time
Aperture, to obtain the corresponding scoop tube of the primary feed pump tripping when aperture.
Preferably, the opening adjusting device is additionally operable to：In the case of the primary Feed Pump Trip, adjustment connection opens
The aperture of the corresponding scoop tube of the auxiliary feed water pump is predetermined aperture；And according to corresponding with the primary feed pump of tripping
Aperture of the scoop tube in the primary Feed Pump Trip adjusts the aperture of the corresponding scoop tube of the auxiliary feed water pump.
Preferably, the corresponding scoop tube of the primary feed pump of the basis and tripping is in the primary Feed Pump Trip
Aperture include come the aperture for adjusting the corresponding scoop tube of the auxiliary feed water pump：It trips in a primary water supply pump operation
In the case of, the aperture for the corresponding scoop tube of the auxiliary feed water pump that adjustment connection opens is that the corresponding scoop tube of the primary feed pump exists
Aperture when the primary Feed Pump Trip；And wherein primary Feed Pump Trip in two primary water supply pump operations
In the case of, the aperture that adjusts the corresponding scoop tube of the auxiliary feed water pump be one in two primary feed pumps it is primary to
Higher value in the aperture of the corresponding scoop tube of two primary feed pumps described in when water pump trips.
Preferably, which further includes：Second monitoring device, for standby with two in a primary water supply pump operation
In the case of with feed pump, the switching signal of two auxiliary feed water pumps is monitored in real time, in the primary Feed Pump Trip
In the case of, it is the auxiliary feed water pump to close a floodgate that connection, which opens switching signal in two auxiliary feed water pumps,.
Through the above technical solutions, the present invention by the primary Feed Pump Trip the case where second line of a couplet open and be in same work with it
Make the auxiliary feed water pump in section and aperture when according to primary Feed Pump Trip is corresponding come the auxiliary feed water pump adjusted with connection opens
The aperture of scoop tube realizes and starts another feed pump rapidly in the case of a water supply failure of pump, substantially increases water supply
System operation reliability and set steady.
The other feature and advantage of the embodiment of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is further understood to the embodiment of the present invention for providing, an and part for constitution instruction, under
The specific implementation mode in face is used to explain the embodiment of the present invention together, but does not constitute the limitation to the embodiment of the present invention.Attached
In figure：
Fig. 1 is the flow chart of feed pump operation method provided by the invention；
Fig. 2 is the schematic diagram of 11 pump self-starting provided by the invention；
Fig. 3 is the schematic diagram of 12 pump self-starting provided by the invention；
Fig. 4 is the schematic diagram of 13 pump (A switches) self-starting provided by the invention；
Fig. 5 is the schematic diagram of 13 pump (B switches) self-starting provided by the invention；
Fig. 6 is the block diagram of feed pump operating system provided by the invention.
Specific implementation mode
The specific implementation mode of the embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this
The described specific implementation mode in place is merely to illustrate and explain the present invention embodiment, is not intended to restrict the invention embodiment.
Fig. 1 is the flow chart of feed pump operation method provided by the invention, as shown in Figure 1, this method includes：
Step 101, in the case of primary Feed Pump Trip, connection is opened is in same active section with the primary feed pump of tripping
On auxiliary feed water pump；And
Step 102, according to aperture of the corresponding scoop tube of primary feed pump in primary Feed Pump Trip adjust and join
The aperture of the corresponding scoop tube of auxiliary feed water pump opened.
The primary feed pump being currently running may include a feed pump, can also include two feed pumps, and the present invention carries
The feed pump operation method of confession further includes：It is below 55% in unit load, start one feed pump of operation；In machine
Group load starts two feed pumps of operation in the case of 55% to 100%.That is, in unit load less than 55%
In the case of, the primary feed pump that is currently running includes a feed pump, more than or equal to 55% and is being less than in unit load
Or in the case of being equal to 100%, the primary feed pump being currently running may include two feed pumps.In this way, when there is feed pump
When the case where fault trip, can quickly join and open auxiliary feed water pump, at the same can ensure well the Water Level Control of Steam ±
Within the scope of 100mm, once connection opens failure, the realization of unit electric pump RB functions is not influenced.But those skilled in the art should manage
Solution, the primary feed pump no matter being currently running include that a feed pump or two feed pumps break down under normal circumstances
Primary feed pump is one, that is to say, that if the primary feed pump being currently running includes two feed pumps, this two feed pumps
It will not break down simultaneously under normal circumstances.
Under normal circumstances, for the case where there are 3 feed pumps, there are following several situations：
Primary feed pump is 11 pumps, and auxiliary feed water pump is 12 pumps, then in the case of 11 pump tripping, connection opens 12 pumps；
Primary feed pump is 11 pumps, and auxiliary feed water pump is 13 pumps, then in the case of 11 pump tripping, connection opens 13 pumps；
Primary feed pump is 12 pumps, and auxiliary feed water pump is 13 pumps, then in the case of 12 pump tripping, connection opens 13 pumps；
Primary feed pump is 12 pumps, and auxiliary feed water pump is 11 pumps, then in the case of 12 pump tripping, connection opens 11 pumps；
Primary feed pump is 13 pumps, and auxiliary feed water pump is 12 pumps, then in the case of 13 pump tripping, connection opens 12 pumps；
Primary feed pump is 13 pumps, and auxiliary feed water pump is 11 pumps, then in the case of 13 pump tripping, connection opens 11 pumps.
Feed pump operation method provided by the invention further includes：There are two in a primary water supply pump operation spare to give
In the case of water pump, the switching signal of two auxiliary feed water pumps is monitored in real time, the primary Feed Pump Trip the case where
Under, it is the auxiliary feed water pump to close a floodgate that connection, which opens switching signal in two auxiliary feed water pumps,.Therefore, a kind of situation of any of the above
In, two auxiliary feed water pumps can be set, with primary feed pump be 13 pump, auxiliary feed water pump be 12 pump for, can also will
11 pumps are used as auxiliary feed water pump, and the switching signal of monitoring in real time 11 pump and 12 pumps, in the case of 13 pump tripping, if together
When or almost simultaneously 12 pump switching signals be tripping, then directly connection open 11 pumps (i.e. switching signal be combined floodgate reserve feed
Pump).
For the case where there are 3 feed pumps, in primary feed pump including a feed pump, auxiliary feed water pump including two
In the case of feed pump, there are following several situations (wherein to assume the pump of feed pump 11 in the A active sections of 6KV active sections, feed pump
12 pumps are in the B active sections of 6KV active sections, and the pump of feed pump 13 is each on the A active sections and B active sections of 6KV active sections, and there are one open
It closes)：
Primary feed pump is 11 pumps, and auxiliary feed water pump includes 12 pumps and 13 pumps, then in the case of 11 pump tripping, connection opens
Switch of 13 pumps on A active sections if 13 pump connection open failure, then joins and opens 12 pumps, under normal circumstances, failure is opened in 13 pump connection
It is delayed 2 seconds to join again afterwards and opens 12 pumps；
Primary feed pump is 12 pumps, and auxiliary feed water pump includes 11 pumps and 13 pumps, then in the case of 12 pump tripping, connection opens
Switch of 13 pumps on B active sections if 13 pump connection open failure, then joins and opens 11 pumps, under normal circumstances, failure is opened in 13 pump connection
It is delayed 2 seconds to join again afterwards and opens 11 pumps；
Primary feed pump is 13 pumps, and auxiliary feed water pump includes that 11 pumps and 12 pumps want root then in the case of 13 pump tripping
11 pumps and 12 pumps are opened to join according to the active section of 13 pump works, if 13 pumps are operated in active section A before tripping, are jumped in 13 pumps
After lock, connection opens 11 pumps, under normal circumstances, opens unsuccessfully to be delayed 2 seconds to join again afterwards in 11 pump connection and opens 12 pumps, if 13 pump works before tripping
Make in active section B, then after 13 pump trippings, connection opens 12 pumps, under normal circumstances, opens unsuccessfully to be delayed afterwards in 12 pump connection and joins again for 2 seconds
Open 11 pumps.
In addition, if primary feed pump includes two feed pumps, auxiliary feed water pump includes a feed pump, and there are following several
Kind situation (wherein assume that feed pump 11 pumps the A active sections in 6KV active sections, feed pump 12 pumps the B active sections in 6KV active sections,
The pump of feed pump 13 is each on the A active sections and B active sections of 6KV active sections, and there are one switches)：
Primary feed pump is 11 pumps and 13 pumps, and auxiliary feed water pump is 12 pumps, then in the case of 11 pumps or 13 pump tripping,
Connection opens 12 pumps；
Primary feed pump is 12 pumps and 13 pumps, and auxiliary feed water pump is 11 pumps, then in the case of 12 pumps or 13 pump tripping,
Connection opens 11 pumps；
Primary feed pump is 11 pumps and 12 pumps, and auxiliary feed water pump is 13 pumps, and such case is different from both the above situation, by
It is each there are one switching on A active sections and B active sections in 13 pumps, open same work so may be implemented preferentially to join in this case
The switch of section, specifically, in the case of 11 pump tripping, connection opens switch of 13 pumps on A active sections, in the feelings of 12 pump trippings
Under condition, connection opens switch of 13 pumps on B active sections.
The connection being enumerated above under several different situations of primary feed pump and auxiliary feed water pump opens mode, art technology
Personnel should be appreciated that in the case of primary Feed Pump Trip, can send out trip signal, in the present invention, in order to ensure tripping
Signal can be received, and can continue to send trip signal for a period of time, such as persistently send trip signal 3 seconds.
Below in conjunction with the accompanying drawings respectively distich open 11 pumps, 12 pump, 13 pump (A switches), 13 pump (B switches) logic theories progress
It illustrates.
Fig. 2 is the schematic diagram of 11 pump self-starting provided by the invention, as shown in Fig. 2, for 12 pumps or the single pump operation of 13 pumps,
Situation of 11 pumps in singly pump is spare, that is, run as primary feed pump there are one feed pump in 12 pumps and 13 pumps, and
Only 11 pumps are used as auxiliary feed water pump, in this case, as shown in Fig. 2, if 12 pumps and 13 pumps are not in operating status,
Then 11 pump connection open (self-starting).For 12 pumps or the 13 single pump operations of pump, situation of 11 pumps in double pump is spare, that is, 12 pumps and
Run as primary feed pump there are one feed pump in 13 pumps, 11 pumps pumped with 12 pumps and 13 in another feed pump collectively as
Auxiliary feed water pump is pumped to join and is opened if 13 pump (A switches) not running and 13 pump (B switches) connection open failure, 11 in this case
(self-starting).For 12 pumps and 13 pump double pump operations, situation of 11 pumps in singly pump is spare, if 12 pumps and 13 pumps are not in
Operating status, then 11 pumps, which join, opens (self-starting).
Fig. 3 is the schematic diagram of 12 pump self-starting provided by the invention, as shown in figure 3, the principle of 12 pump self-startings and 11 pumps
The principle of self-starting is similar, can be with 11 pump self-starting principle in reference chart 2, in this to 12 pump self-starting rationales in Fig. 3
It will not go into details.
Fig. 4 is the schematic diagram of 13 pump (A switches) self-starting provided by the invention, and 13 pumps (A switches) are 13 pumps in A works here
Make the upper switch of section, as shown in figure 4, for 11 pumps or the single pump operation of 12 pumps, situation of 13 pumps in singly pump is spare, that is,
It is being run as primary feed pump there are one feed pump in 11 pumps and 12 pumps, and only 13 pumps are used as auxiliary feed water pump, this
In the case of, as shown in figure 4, in the case where 11 pumps are not in operating status, 13 pump (A switches) self-startings.For 11 pumps or 12
Feed pump is as primary water supply there are one pumping during list pump operation, situation of 13 pumps in double pump is spare, that is, 11 pumps are pumped with 12
Pump is being run, and another feed pump in 13 pumps and 11 pumps and 12 pumps is collectively as auxiliary feed water pump, in this case, if 11
Not running is pumped, then 13 pump (A switches) self-starting.Situation in singly pump is spare is pumped for 11 pumps and 12 pump double pump operations, 13, such as
The pump of fruit 11 is not in operating status, then 13 pump (A switches) self-starting.
Fig. 5 is the schematic diagram of 13 pump (B switches) self-starting provided by the invention, and 13 pumps (B switches) are 13 pumps in B works here
Make the upper switch of section, as shown in figure 5, the principle class of the principle of 13 pump (B switches) self-startings and 13 pump (A switches) self-startings
It seemingly, can be with 13 pump (A switches) self-starting principle in reference chart 4, in this to 13 pump (B switches) self-starting rationales in Fig. 5
It will not go into details.
Mainly elaborate that the primary Feed Pump Trip the case where second line of a couplet opens several situations of auxiliary feed water pump above, it is main below
It is set forth in connection and opens control of the auxiliary feed water pump in the process to the aperture of the corresponding scoop tube of auxiliary feed water pump.
The aperture of scoop tube needs to track the aperture that primary feed pump corresponds to scoop tube after being opened due to auxiliary feed water pump connection, so
Feed pump operation method provided by the invention further includes：The aperture of the corresponding scoop tube of the primary feed pump is monitored in real time, to
Obtain aperture of the corresponding scoop tube of the primary feed pump in tripping.It should be noted that including two in primary feed pump
In the case of feed pump, need to monitor the aperture of the corresponding scoop tube of two feed pumps included by primary feed pump in real time.
Meet the normal operation of unit to ensure that the connection auxiliary feed water pump that opens can quickly contribute, scoop tube needs to use
The mode of stand-by heat, once that is, auxiliary feed water pump is put into, corresponding scoop tube needs to be predisposed to predetermined aperture, after auxiliary feed water pump connection opens
The aperture of scoop tube is reached purpose aperture by scoop tube with certain rate.Therefore, volume described above is according to primary feed pump pair
Aperture of the scoop tube answered in primary Feed Pump Trip adjusts and the aperture of the corresponding scoop tube of the auxiliary feed water pump that opens of connection includes：
In the case of primary Feed Pump Trip, the aperture for the corresponding scoop tube of auxiliary feed water pump that adjustment connection opens is predetermined aperture；According to
Aperture of the scoop tube corresponding with the primary feed pump of tripping in primary Feed Pump Trip adjusts the corresponding spoon of auxiliary feed water pump
The aperture of pipe.Wherein, in the case where the aperture of the corresponding scoop tube of auxiliary feed water pump has been predetermined aperture, reserve feed is adjusted
When pumping the aperture of corresponding scoop tube, tracking desired value can be reached with given pace, given pace here for example can be
2.5%/second.Wherein predetermined aperture for example can be 30%.
Specifically, aperture according to scoop tube corresponding with the primary feed pump of tripping in primary Feed Pump Trip is adjusted
The aperture of the corresponding scoop tube of whole auxiliary feed water pump includes：In the case of tripping in a primary water supply pump operation, adjustment
The aperture for joining the corresponding scoop tube of auxiliary feed water pump opened is the corresponding scoop tube of primary feed pump opening in primary Feed Pump Trip
Degree；In two primary water supply pump operations in the case of a wherein primary Feed Pump Trip, adjustment auxiliary feed water pump is corresponding
Two primary feed pumps are corresponding when the aperture of scoop tube is a primary Feed Pump Trip in two primary feed pumps
Higher value in the aperture of scoop tube.
In other words, in the case where a primary water supply pump operation trips, auxiliary feed water pump connection opens rear corresponding
The aperture of the tracking desired value of the aperture of scoop tube corresponding scoop tube when being primary Feed Pump Trip.In two primary water supply pump operations
And in the case of a wherein primary Feed Pump Trip, two primary feed pumps in a primary Feed Pump Trip are obtained first
Scoop tube aperture, compare the aperture of the scoop tube of two primary feed pumps, auxiliary feed water pump joins the aperture for opening rear corresponding scoop tube
Tracking desired value be a primary Feed Pump Trip when two primary feed pumps scoop tube span in higher value.
Fig. 6 is the block diagram of feed pump operating system provided by the invention, as shown in fig. 6, the system includes control device 601
With opening adjusting device 602, control device 601 be used in the case of primary Feed Pump Trip, connection open with trip it is primary to
Water pump is in the auxiliary feed water pump on same active section；Opening adjusting device 602 is used for according to the corresponding scoop tube of primary feed pump
Aperture in primary Feed Pump Trip adjusts and joins the aperture of the corresponding scoop tube of the auxiliary feed water pump that opens.
In addition, feed pump operating system provided by the invention further includes the first monitoring device and the second monitoring device (in figure
It is not shown), the first monitoring device is used to monitor the aperture of the corresponding scoop tube of primary feed pump in real time, to obtain primary feed pump
Aperture of the corresponding scoop tube in tripping, the second monitoring device are used to have two in a primary water supply pump operation and spare give
In the case of water pump, the switching signal of two auxiliary feed water pumps is monitored in real time, and in the case of primary Feed Pump Trip, connection opens two
Switching signal is the auxiliary feed water pump to close a floodgate in platform auxiliary feed water pump.
It should be noted that feed pump operating system provided by the invention detail and benefit with it is provided by the invention
Feed pump operation method is similar, and in this, it will not go into details.
The optional embodiment of the embodiment of the present invention is described in detail above in association with attached drawing, still, the embodiment of the present invention is simultaneously
The detail being not limited in the above embodiment can be to of the invention real in the range of the technology design of the embodiment of the present invention
The technical solution for applying example carries out a variety of simple variants, these simple variants belong to the protection domain of the embodiment of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the embodiment of the present invention pair
Various combinations of possible ways no longer separately illustrate.
It will be appreciated by those skilled in the art that it is that can pass through to implement the method for the above embodiments
Program is completed to instruct relevant hardware, which is stored in a storage medium, including some instructions are used so that single
Piece machine, chip or processor (processor) execute all or part of step of each embodiment the method for the application.And it is preceding
The storage medium stated includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), magnetic disc or CD.
In addition, arbitrary combination can also be carried out between a variety of different embodiments of the embodiment of the present invention, as long as it is not
The thought of the embodiment of the present invention is violated, disclosure of that of the embodiment of the present invention is equally should be considered as.
Claims (10)
1. a kind of feed pump operation method, which is characterized in that this method includes：
In the case of primary Feed Pump Trip, connection opens the reserve feed being in the primary feed pump of tripping on same active section
Pump；And
The institute opened with connection is adjusted according to aperture of the corresponding scoop tube of the primary feed pump in the primary Feed Pump Trip
State the aperture of the corresponding scoop tube of auxiliary feed water pump.
2. according to the method described in claim 1, it is characterized in that, this method further includes：
The aperture for monitoring the corresponding scoop tube of the primary feed pump in real time exists to obtain the corresponding scoop tube of the primary feed pump
Aperture when tripping.
3. method according to claim 1 or 2, which is characterized in that described according to the corresponding scoop tube of the primary feed pump
Aperture in the primary Feed Pump Trip includes come the aperture for adjusting and joining the corresponding scoop tube of the auxiliary feed water pump that opens：
In the case of the primary Feed Pump Trip, the aperture for the corresponding scoop tube of the auxiliary feed water pump that adjustment connection opens is pre-
Determine aperture；And
According to aperture of the scoop tube corresponding with the primary feed pump of tripping in the primary Feed Pump Trip to adjust
State the aperture of the corresponding scoop tube of auxiliary feed water pump.
4. according to the method described in claim 3, it is characterized in that, the basis is corresponding with the primary feed pump of tripping
Aperture of the scoop tube in the primary Feed Pump Trip include come the aperture for adjusting the corresponding scoop tube of the auxiliary feed water pump：
In the case of tripping in a primary water supply pump operation, adjustment joins the corresponding scoop tube of the auxiliary feed water pump opened
Aperture be aperture of the corresponding scoop tube of the primary feed pump in the primary Feed Pump Trip；And
In two primary water supply pump operations in the case of a wherein primary Feed Pump Trip, the auxiliary feed water pump pair is adjusted
Two primary water supply described in when the aperture for the scoop tube answered is a primary Feed Pump Trip in two primary feed pumps
Pump the higher value in the aperture of corresponding scoop tube.
5. according to the method described in claim 1, it is characterized in that, this method further includes：
In the case that there is two auxiliary feed water pumps in a primary water supply pump operation, two reserve feeds are monitored in real time
The switching signal of pump, in the case of the primary Feed Pump Trip, connection opens switching signal in two auxiliary feed water pumps and is
The auxiliary feed water pump of combined floodgate.
6. a kind of feed pump operating system, which is characterized in that the system includes：
Control device, in the case of primary Feed Pump Trip, connection to open and the primary feed pump of tripping is in same work
Auxiliary feed water pump in section；And
Opening adjusting device, for the aperture according to the corresponding scoop tube of the primary feed pump in the primary Feed Pump Trip
To adjust and the aperture of the corresponding scoop tube of the auxiliary feed water pump that opens of connection.
7. system according to claim 6, which is characterized in that the system further includes：
First monitoring device, the aperture for monitoring the corresponding scoop tube of the primary feed pump in real time are described primary to obtain
Aperture of the corresponding scoop tube of feed pump in tripping.
8. the system described according to claim 6 or 7, which is characterized in that the opening adjusting device is additionally operable to：
In the case of the primary Feed Pump Trip, the aperture for the corresponding scoop tube of the auxiliary feed water pump that adjustment connection opens is pre-
Determine aperture；And
According to aperture of the scoop tube corresponding with the primary feed pump of tripping in the primary Feed Pump Trip to adjust
State the aperture of the corresponding scoop tube of auxiliary feed water pump.
9. system according to claim 8, which is characterized in that the basis is corresponding with the primary feed pump of tripping
Aperture of the scoop tube in the primary Feed Pump Trip include come the aperture for adjusting the corresponding scoop tube of the auxiliary feed water pump：
In the case of tripping in a primary water supply pump operation, adjustment joins the corresponding scoop tube of the auxiliary feed water pump opened
Aperture be aperture of the corresponding scoop tube of the primary feed pump in the primary Feed Pump Trip；And
In two primary water supply pump operations in the case of a wherein primary Feed Pump Trip, the auxiliary feed water pump pair is adjusted
Two primary water supply described in when the aperture for the scoop tube answered is a primary Feed Pump Trip in two primary feed pumps
Pump the higher value in the aperture of corresponding scoop tube.
10. system according to claim 6, which is characterized in that the system further includes：
Second monitoring device is supervised in real time in the case of for having two auxiliary feed water pumps in a primary water supply pump operation
The switching signal for surveying two auxiliary feed water pumps, in the case of the primary Feed Pump Trip, connection open described two it is spare
Switching signal is the auxiliary feed water pump to close a floodgate in feed pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810270982.4A CN108561300A (en) | 2018-03-29 | 2018-03-29 | Feed pump operation method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810270982.4A CN108561300A (en) | 2018-03-29 | 2018-03-29 | Feed pump operation method and system |
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| CN108561300A true CN108561300A (en) | 2018-09-21 |
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| CN201810270982.4A Pending CN108561300A (en) | 2018-03-29 | 2018-03-29 | Feed pump operation method and system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678120A (en) * | 2020-06-02 | 2020-09-18 | 哈尔滨沃华智能发电设备有限公司 | Control method for joint start of steam feed pump and trip electric pump of 330MW subcritical unit |
| CN114576150A (en) * | 2022-02-28 | 2022-06-03 | 国能神东煤炭集团有限责任公司 | Emulsion pump operation control method and system and storage medium |
| CN114688005A (en) * | 2022-02-22 | 2022-07-01 | 西安热工研究院有限公司 | Automatic control method for quickly starting standby electric pump |
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| CN114576150A (en) * | 2022-02-28 | 2022-06-03 | 国能神东煤炭集团有限责任公司 | Emulsion pump operation control method and system and storage medium |
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Application publication date: 20180921 |