CN110030046A - A kind of condensate system and operation method for Turbo-generator Set - Google Patents
A kind of condensate system and operation method for Turbo-generator Set Download PDFInfo
- Publication number
- CN110030046A CN110030046A CN201910242379.XA CN201910242379A CN110030046A CN 110030046 A CN110030046 A CN 110030046A CN 201910242379 A CN201910242379 A CN 201910242379A CN 110030046 A CN110030046 A CN 110030046A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 300
- 230000008676 import Effects 0.000 claims abstract description 50
- 239000000498 cooling water Substances 0.000 claims description 45
- 238000012544 monitoring process Methods 0.000 claims description 25
- 238000009833 condensation Methods 0.000 claims description 19
- 230000005494 condensation Effects 0.000 claims description 19
- 238000004140 cleaning Methods 0.000 claims description 17
- 230000008439 repair process Effects 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 11
- 238000013461 design Methods 0.000 claims description 10
- 206010020852 Hypertonia Diseases 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 5
- 239000003643 water by type Substances 0.000 claims description 4
- 238000010612 desalination reaction Methods 0.000 claims 1
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/14—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to other specific conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
Abstract
The present invention relates to a kind of condensate system and operation method for Turbo-generator Set, the auxiliary systems of thermal power plant.In the present invention, No.1 entrance electrically operated gate and No. two entrance electrically operated gates pass through two-way branch pipe respectively and connect with condenser, No.1 inlet screen is connect with No.1 entrance electrically operated gate, No.1 entrance expansion joint is connect with No.1 inlet screen, the import of No.1 condensate pump is connect with No.1 entrance expansion joint, No.1 outlet non-return door is connect with the outlet of No.1 condensate pump, No.1 outlet electrically operated gate is connect with No.1 outlet non-return door, No. two inlet screens are connect with No. two entrance electrically operated gates, No. two entrance expansion joints are connect with No. two inlet screens, the import of No. two condensate pumps is connect with No. two entrance expansion joints, No. two outlet non-return doors are connect with the outlet of No. two condensate pumps, No. two outlet electrically operated gates are connect with No. two outlet non-return doors, No.1 outlet electrically operated gate and No. two outlet electrically operated gates are connect with condensed water main pipe.
Description
Technical field
The present invention relates to a kind of condensate system and operation method for Turbo-generator Set, the auxiliary systems of thermal power plant
System.
Background technique
The condensate system of existing Turbo-generator Set, is provided with two condensate pumps, and entrance is respectively arranged with filter
Net and expansion joint etc., unit run a period of time after, strainer easily blocks, often close condensate pump entrance electrically operated gate and
Electrically operated gate is exported, carries out dismantling maintenance after isolating strainer, to condensate pump entrance electrically operated gate and outlet electricity after service work
It is filled the water between dynamic door, after water source is exports electrically operated gate for the demineralized water or condensate pump of condensate pump mechanical seal
Condensed water.Because the pressure of the condensed water after the demineralized water for condensate pump mechanical seal or condensate pump outlet electrically operated gate is past
Toward in 0.5MPa or more, being easy in the injecting process because of hypertonia, the design pressure of super high expansion section, so that expansion joint occurs
Permanent deformation causes condensate pump entrance water flow unsmooth, causes condensate pump cavitation or vibration increases, influence unit safety
Stable operation.
In view of this, being disclosed in the patent document application No. is 2016102435577 a kind of for steam turbine generator
The condensate system of the high security of group.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide a kind of reasonable in design
Condensate system and operation method for Turbo-generator Set.
Technical solution used by the present invention solves the above problems is: this is used for the condensate system of Turbo-generator Set,
Its design feature is: including condenser, No.1 safety valve, No.1 entrance electrically operated gate, No.1 inlet screen, No.1 inlet pressure
Table, No.1 condensate pump, No.1 outlet non-return door, No.1 export electrically operated gate, No. two safety valves, No. two entrance electrically operated gates, No. two
Inlet screen, No. two entrance expansion joints, No. two inlet pressure gauges, No. two condensate pumps, No. two outlet non-return doors, No. two outlet electricity
Dynamic door, No.1 entrance expansion joint, No.1 shut-off valve and No. two shut-off valves.
The No.1 entrance electrically operated gate and No. two entrance electrically operated gates pass through two-way branch pipe respectively and connect with condenser.
The No.1 inlet screen is connect with No.1 entrance electrically operated gate, the No.1 entrance expansion joint and No.1 inlet screen
Connection, the import of the No.1 condensate pump are connect with No.1 entrance expansion joint, and the No.1 outlet non-return door and No.1 condense
The outlet of water pump connects, and the No.1 outlet electrically operated gate is connect with No.1 outlet non-return door, one end of the No.1 safety valve and
Pipeline connection between No.1 inlet screen and No.1 entrance electrically operated gate, the other end and condenser of the No.1 safety valve connect
It connecing, certain operating pressure is arranged in No.1 safety valve, after No.1 inlet screen on-bne repair, No.1 entrance electrically operated gate and No.1
When pipeline between outlet electrically operated gate is filled the water, prevent from damaging No.1 entrance expansion joint because of pipeline superpressure.
No. two inlet screens are connect with No. two entrance electrically operated gates, No. two entrance expansion joints and No. two inlet screens
Connection, the import of No. two condensate pumps are connect with No. two entrance expansion joints, No. two outlet non-return doors and No. two condensations
The outlet of water pump connects, and No. two outlet electrically operated gates are connect with No. two outlet non-return doors, one end of No. two safety valves and
Pipeline connection between No. two inlet screens and No. two entrance electrically operated gates, the other end and condenser of No. two safety valves connect
It connecing, certain operating pressure is arranged in No. two safety valves, after No. two inlet screen on-bne repairs, No. two entrance electrically operated gates and No. two
When pipeline between outlet electrically operated gate is filled the water, prevent from damaging No. two entrance expansion joints because of pipeline superpressure.
The No.1 outlet electrically operated gate and No. two outlet electrically operated gates are connect with condensed water main pipe.
One end of the No.1 shut-off valve and one end of No. two shut-off valve respectively with No.1 condensate pump and No. two condensed waters
Pump connection, the other end of the No.1 shut-off valve and the other end of No. two shut-off valves are connect with condenser.
Further, No.1 entrance pressure is installed on the pipeline between the No.1 condensate pump and No.1 entrance expansion joint
Power table, for monitoring the condensation water pressure of No.1 condensate pump inlet duct, No. two condensate pumps and No. two entrances expand
No. two inlet pressure gauges are installed, for monitoring the condensation water pressure of No. two condensate pump inlet ducts on the pipeline between section.
Further, the condensate system further includes No.1 water inlet cut-off gate A, No.1 inlet gage, No.1 water inlet
Non-return flap A, No.1 water inlet cut-off gate B, No.1 water inlet non-return flap B, No.1 water inlet cut-off gate C, No. two water inlet cut-off gate A, No. two
Inlet gage, No. two water inlet non-return flap A, No. two water inlet non-return flap B, No. two water inlet cut-off gate B and No. two water inlet cut-off gate C.
The import of the No.1 water inlet cut-off gate B and the import of No. two water inlet cut-off gate B are connected to DW system demineralized water system pipe
Road.
The outlet of the No.1 water inlet cut-off gate B is connect with the import of No.1 water inlet non-return flap A, the No.1 water inlet check
The outlet of door A is connect with the import of No.1 water inlet cut-off gate A, the outlet of the No.1 water inlet cut-off gate A and No.1 condensate pump
Import connection, after mechanical seal water enters double mechanical seal chamber, compresses seal, prevent outside air leak into No.1 condensation
Water pump, while preventing No.1 condensate pump from leaking out condensed water.
The import of No.1 water inlet cut-off gate C is connect with the condensing water conduit that No.1 exports electrically operated gate, the No.1 into
The import of the outlet of water cut-off gate C and No.1 water inlet non-return flap B connects, the No.1 intake non-return flap B outlet and No.1 into
The import of water pressure table connects, the outlet of the No.1 inlet gage and No.1 water inlet non-return flap A and No.1 water inlet cut-off gate A
Between pipeline connection, No.1 inlet gage be used for monitor seal waterpipe pressure.
The outlet of No. two water inlets cut-off gate B is connect with the import of No. two non-return flap A of intaking, No. two water inlets check
The outlet of door A is connect with the import of No. two cut-off gate A of intaking, the outlet of No. two water inlets cut-off gate A and No. two condensate pumps
Import connection, after mechanical seal water enters double mechanical seal chamber, compresses seal prevents outside air from leaking into No. two condensations
Water pump, while preventing No. two condensate pumps from leaking out condensed water.
It is described No. two water inlet cut-off gate C import with No. two outlet electrically operated gates condensing water conduit connect, described No. two into
Water cut-off gate C outlet with No. two water inlet non-return flap B import connect, it is described No. two intake non-return flap B outlet and No. two into
The import of water pressure table connects, the outlet of No. two inlet gages and No. two water inlet non-return flap A and No. two water inlet cut-off gate A
Between pipeline connection, No. two inlet gages are used to monitor the pressure for sealing waterpipe.
Further, the condensate system further includes No.1 pressure of return water table, No.1 return water cut-off gate, No.1 cooling
Water cut-off gate A, No.1 cooling water cut-off gate B, No. two cooling water cut-off gate A, No. two pressure of return water tables, No. two return water cut-off gates and
No. two cooling water cut-off gate B.
The No.1 return water cut-off gate, No.1 cooling water cut-off gate A and No.1 cooling water cut-off gate B with No.1 condensed water
Pump connection, the No.1 pressure of return water table are mounted on the pipeline between No.1 return water cut-off gate and No.1 condensate pump, are used for
The pressure of mechanical seal return water is monitored, No.1 return water cut-off gate is welded to connect by pipeline to condensation puddle.
No. two return water cut-off gates, No. two cooling water cut-off gate A and No. two cooling water cut-off gate B with No. two condensed waters
Pump connection, No. two pressure of return water tables are mounted on the pipeline between No. two return water cut-off gates and No. two condensate pumps, are used for
The pressure of mechanical seal return water is monitored, No. two return water cut-off gates are welded to connect by pipeline to condensation puddle.
Further, another technical purpose of the invention is to provide a kind of condensation water system for Turbo-generator Set
The operation method of system.
Above-mentioned technical purpose of the invention technical scheme is that.
A kind of operation method of the condensate system for Turbo-generator Set, it is characterized in that: the operation method is such as
Under:
(1), before the operation of No.1 condensate pump, No.1 cooling water cut-off gate A and No.1 cooling water cut-off gate B, investment condensation are opened
Water pump bearing cooling water reduces bearing temperature after No.1 condensate pump opens machine；Open No.1 water inlet cut-off gate A and No.1 into
Water cut-off gate B closes No.1 water inlet cut-off gate C, carries out machine using No.1 water inlet cut-off gate B of the demineralized water to No.1 condensate pump
Tool sealing, observation monitoring No.1 inlet gage after pressure is normal, slowly open No.1 return water cut-off gate, observation monitoring No.1
Pressure of return water table, it is ensured that pressure is between 0.2-0.4MPa, after the completion of aforesaid operations, starts No.1 condensate pump, condenses water system
It unites after normal operation, the mechanical seal water of No.1 condensate pump is switched over, slowly open No.1 water inlet cut-off gate C, simultaneously
Slowly closing No.1 water inlet cut-off gate B, observation monitoring No.1 pressure of return water table and No.1 inlet gage, until No.1 water inlet section
Only door B is closed entirely, keeps No.1 water inlet cut-off gate C aperture constant, and so far the mechanical seal water switching of No.1 condensate pump finishes.
(2), before No. two condensate pump operations, No. two cooling water cut-off gate A and No. two cooling water cut-off gate B is opened, are put into
Condensate pump bearing cooling water reduces bearing temperature after No. two condensate pumps open machine；Open No. two water inlet cut-off gate A and two
Number water inlet cut-off gate B, closes No. two water inlet cut-off gate C, using demineralized water to No. two water inlet cut-off gate B of No. two condensate pumps into
Row mechanical seal, observation No. two inlet gages of monitoring after pressure is normal, slowly open No. two return water cut-off gates, observation monitoring
No. two pressure of return water tables, it is ensured that pressure is between 0.2-0.4MPa, after the completion of aforesaid operations, starts No. two condensate pumps, condensation
After water system normal operation, the mechanical seal water of No. two condensate pumps is switched over, slowly opens No. two water inlet cut-off gate C,
No. two water inlet cut-off gate B of slowly closing simultaneously, observation monitoring No. two pressure of return water tables and No. two inlet gages, up to No. two into
Water cut-off gate B is closed entirely, keeps No. two water inlet cut-off gate C apertures constant, so far the mechanical seal water of No. two condensate pumps has switched
Finish.
Further, in described (one), when blocking occurs in No.1 inlet screen, and on-bne repair is needed to clean, No.1 is needed
Entrance electrically operated gate and No.1 outlet electrically operated gate are closed, and the cylinder wicket of No.1 inlet screen, the condensation in discharge tube are opened
Water is disassembled the cover of No.1 inlet screen, is reassembled after cleaning strainer is qualified, then electronic to No.1 entrance electrically operated gate and No.1 outlet
Pipeline is filled the water between door, utilizes mechanical seal water (external demineralized water or the No.1 outlet electrically operated gate of No.1 condensate pump
Condensed water), observation monitoring No.1 pressure of return water table and No.1 inlet gage and No.1 inlet pressure gauge, while filling the water
The cylinder air-discharging cut-off gate for opening No.1 inlet screen in the process closes strainer cylinder after the air in pipeline drains
Air-discharging cut-off gate, slowly opens No.1 entrance electrically operated gate and No.1 exports electrically operated gate, so far the strainer inspection of No.1 condensate pump
Cleaning is repaired to finish.
In (two), when blocking occur in No. two inlet screens, and on-bne repair is needed to clean, need No. two entrances electronic
Door and No. two outlet electrically operated gates are closed, and the cylinder wicket of No. two inlet screens, the condensed water in discharge tube, dismantling two are opened
The cover of number inlet screen is reassembled after cleaning strainer is qualified, then is managed between No. two entrance electrically operated gates and No. two outlet electrically operated gates
Road is filled the water, and the mechanical seal water (condensation of external demineralized water or No. two outlet electrically operated gates of No. two condensate pumps is utilized
Water), observation monitors No. two pressure of return water tables and No. two inlet gages and No. two inlet pressure gauges, while in the injecting process
The cylinder air-discharging cut-off gate for opening No. two inlet screens closes the air-discharging of strainer cylinder after the air in pipeline drains
Cut-off gate slowly opens No. two entrance electrically operated gates and No. two outlet electrically operated gates, and so far the strainer of No. two condensate pumps overhauls cleaning
It finishes.
Further, in described (one), the pipeline between No.1 entrance electrically operated gate and No.1 inlet screen is provided with one
Number safety valve, and certain protection act pressure is set, after the cleaning of No.1 inlet screen on-bne repair in the injecting process, prevent pipe
Condensed water hypertonia in road causes expansion joint to deform more than the design pressure of condensate pump expansion joint, influences No.1 condensed water
Pump and condensate system safe and stable operation.
In (two), the pipeline between No. two entrance electrically operated gates and No. two inlet screens is provided with No. two safety valves,
And certain protection act pressure is set, after No. two inlet screen on-bne repair cleanings in the injecting process, prevent from condensing in pipeline
Water pressure is excessively high, more than the design pressure of condensate pump expansion joint, expansion joint is caused to deform, and influences No. two condensate pumps and condensation
Water system security stable operation.
Compared with prior art, the invention has the following advantages that the condensate system and operation that are used for Turbo-generator Set
Method, structure is simple, easy to operate, and performance safety is reliable, and condensate system safety valve is arranged, can guarantee condensate pump strainer
When on-bne repair cleans, condensing water conduit superpressure is prevented, guarantees condensate pump and condensate system normal safe operation.
Detailed description of the invention
Fig. 1 is the connection relationship diagram of the condensate system of the embodiment of the present invention.
Label declaration: condenser 1, No.1 safety valve 2, No.1 entrance electrically operated gate 3, No.1 inlet screen 4, No.1 entrance pressure
Power table 5, No.1 condensate pump 6, No.1 pressure of return water table 7, No.1 return water cut-off gate 8, No.1 outlet non-return door 9, No.1 outlet
Electrically operated gate 10, No.1 cooling water cut-off gate A11, No.1 cooling water cut-off gate B12, No.1 water inlet cut-off gate A13, No.1 influent pressure
Power table 14, No.1 water inlet non-return flap A15, No.1 water inlet cut-off gate B16, No.1 water inlet non-return flap B17, No.1 water inlet cut-off gate
C18, No. two entrance pressures of entrance expansion joint 22, two of inlet screen 21, two of entrance electrically operated gate 20, two of safety valve 19, two
The condensate pump 24, two of power table 23, two cooling water cut-off gate A25,26, No. two return water cut-off gates 27 of No. two pressure of return water tables,
No. two outlet non-return doors 28, No. two outlet 29, No. two cooling water cut-off gate B30 of electrically operated gate, No. two water inlet cut-off gate A31, No. two
32, No. two water inlet non-return flap A33 of inlet gage, No. two water inlet non-return flap B34, No. two water inlet cut-off gate B35, No. two water inlets are cut
Only 38, No. two door C36, No.1 entrance expansion joint 37, No.1 shut-off valve shut-off valves 39.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Embodiment.
It is shown in Figure 1, it should however be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to match
The revealed content of specification is closed, so that those skilled in the art understands and reads, is not intended to limit the invention implementable
Qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size,
In the case where not influencing the effect of present invention can be generated and the purpose that can reach, should all still fall in disclosed technology
In the range of appearance can cover.Meanwhile if with reference such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term, be merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or
Adjustment, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
The condensate system for Turbo-generator Set in the present embodiment steams water for condensing the steam discharge of steam turbine
Vapour carries out heat exchange cooling and becomes condensed water comprising condenser 1, No.1 safety valve 2, No.1 entrance electrically operated gate 3, the filter of No.1 entrance
Net 4, No.1 inlet pressure gauge 5, No.1 condensate pump 6, No.1 outlet non-return door 9, No.1 export 10, No. two safety valves of electrically operated gate
19, No. two inlet pressure gauge 23, two of entrance expansion joint 22, two of inlet screen 21, two of entrance electrically operated gate 20, two condensations
The outlet non-return door 28, two of water pump 24, two outlet electrically operated gate 29, No.1 entrance expansion joint 37, No.1 shut-off valve 38 and No. two
Shut-off valve 39.
No.1 entrance electrically operated gate 3 and No. two entrance electrically operated gates 20 in the present embodiment pass through two-way branch pipe and condenser respectively
1 connection is connect after can also being converged by two-way branch pipe with condensed water main pipe with condenser 1.
No.1 inlet screen 4 in the present embodiment is connect with No.1 entrance electrically operated gate 3, No.1 entrance expansion joint 37 and No.1
Inlet screen 4 connects, and the import of No.1 condensate pump 6 is connect with No.1 entrance expansion joint 37, No.1 outlet non-return door 9 and No.1
The outlet of condensate pump 6 connects, and No.1 outlet electrically operated gate 10 is connect with No.1 outlet non-return door 9, one end of No.1 safety valve 2 and
Pipeline connection between No.1 inlet screen 4 and No.1 entrance electrically operated gate 3, the other end and condenser 1 of No.1 safety valve 2 connect
It connects.
No. two inlet screens 21 in the present embodiment are connect with No. two entrance electrically operated gates 20, No. two entrance expansion joints 22 and two
Number inlet screen 21 connects, and the import of No. two condensate pumps 24 is connect with No. two entrance expansion joints 22, No. two outlet non-return doors 28
It is connect with the outlet of No. two condensate pumps 24, No. two outlet electrically operated gates 29 are connect with No. two outlet non-return doors 28, No. two safety valves
Pipeline connection between 19 one end and No. two inlet screens 21 and No. two entrance electrically operated gates 20, the other end of No. two safety valves 19
It is connect with condenser 1.
No.1 outlet electrically operated gate 10 and No. two outlet electrically operated gates 29 in the present embodiment are connect with condensed water main pipe.
One end of No.1 shut-off valve 38 in the present embodiment and one end of No. two shut-off valve 39 respectively with No.1 condensate pump 6
It is connected with No. two condensate pumps 24, the other end of the other end of No.1 shut-off valve 38 and No. two shut-off valve 39 connects with condenser 1
It connects.
No.1 entrance is installed on pipeline between No.1 condensate pump 6 in the present embodiment and No.1 entrance expansion joint 37
Pressure gauge 5 is equipped with No. two inlet pressure gauges 23 on the pipeline between No. two condensate pumps 24 and No. two entrance expansion joints 22.
Condensate system in the present embodiment further includes No.1 water inlet cut-off gate A13, No.1 inlet gage 14, No.1
Water inlet non-return flap A15, No.1 water inlet cut-off gate B16, No.1 water inlet non-return flap B17, No.1 water inlet cut-off gate C18, No. two water inlets
Cut-off gate A31,32, No. two water inlet non-return flap A33 of No. two inlet gages, No. two water inlet non-return flap B34, No. two water inlet cut-off gates
B35 and No. two water inlet cut-off gate C36.
The import of No.1 water inlet cut-off gate B16 and the import of No. two water inlet cut-off gate B35 in the present embodiment are connected to
DW system demineralized water system pipeline.
The outlet of No.1 water inlet cut-off gate B16 in the present embodiment is connect with the import of No.1 water inlet non-return flap A15, No.1
The outlet of water inlet non-return flap A15 is connect with the import of No.1 water inlet cut-off gate A13, the outlet and one of No.1 water inlet cut-off gate A13
The import connection of number condensate pump 6.
The import of No.1 water inlet cut-off gate C18 in the present embodiment and the condensing water conduit of No.1 outlet electrically operated gate 10 connect
It connects, the outlet of No.1 water inlet cut-off gate C18 is connect with the import of No.1 water inlet non-return flap B17, and No.1 water inlet non-return flap B17's goes out
Mouth is connect with the import of No.1 inlet gage 14, the outlet of No.1 inlet gage 14 and No.1 water inlet non-return flap A15 and one
Number water inlet cut-off gate A13 between pipeline connection.
The outlet of No. two water inlet cut-off gate B35 in the present embodiment is connect with the import of No. two non-return flap A33 of intaking, and No. two
The outlet of water inlet non-return flap A33 is connect with the import of No. two cut-off gate A31 of intaking, the outlet and two of No. two water inlet cut-off gate A31
The import connection of number condensate pump 24.
The import of No. two water inlet cut-off gate C36 in the present embodiment and the condensing water conduit of No. two outlet electrically operated gates 29 connect
Connect, No. two water inlet cut-off gate C36 outlet with No. two water inlet non-return flap B34 import connect, No. two intake non-return flap B34 out
Mouth is connect with the import of No. two inlet gages 32, the outlet of No. two inlet gages 32 and No. two water inlet non-return flap A33 and two
Number water inlet cut-off gate A31 between pipeline connection.
Condensate system in the present embodiment further includes No.1 pressure of return water table 7, No.1 return water cut-off gate 8, No.1 cooling
26, No. two water cut-off gate A11, No.1 cooling water cut-off gate B12, No. two cooling water cut-off gate A25, No. two pressure of return water tables return water
Cut-off gate 27 and No. two cooling water cut-off gate B30.
No.1 return water cut-off gate 8, No.1 cooling water cut-off gate A11 and No.1 cooling water cut-off gate B12 in the present embodiment
It is connect with No.1 condensate pump 6, No.1 pressure of return water table 7 is mounted between No.1 return water cut-off gate 8 and No.1 condensate pump 6
Pipeline on.
No. two return water cut-off gates 27, No. two cooling water cut-off gate A25 and No. two cooling water cut-off gate B30 in the present embodiment
It is connect with No. two condensate pumps 24, No. two pressure of return water tables 26 are mounted on No. two return water cut-off gates 27 and No. two condensate pumps 24
Between pipeline on.
The operation method of the condensate system for Turbo-generator Set in the present embodiment, as follows:
(1), before No.1 condensate pump 6 is run, No.1 cooling water cut-off gate A11 and No.1 cooling water cut-off gate B12 is opened, is thrown
Enter condensate pump bearing cooling water, after No.1 condensate pump 6 opens machine, reduces bearing temperature；Open No.1 water inlet cut-off gate A13
With No.1 water inlet cut-off gate B16, No.1 water inlet cut-off gate C18 is closed, is intake using No.1 of the demineralized water to No.1 condensate pump 6
Cut-off gate B16 carries out mechanical seal, and observation monitoring No.1 inlet gage 14 after pressure is normal, is slowly opened No.1 return water and cut
Only door 8, observation monitoring No.1 pressure of return water table 7, it is ensured that pressure is between 0.2-0.4MPa, after the completion of aforesaid operations, starting one
Number condensate pump 6 after condensate system normal operation, the mechanical seal water of No.1 condensate pump 6 is switched over, is slowly opened
No.1 water inlet cut-off gate C18, while slowly closing No.1 water inlet cut-off gate B16, observation monitoring No.1 pressure of return water table 7 and No.1
Inlet gage 14 keeps No.1 water inlet cut-off gate C18 aperture constant, so far No.1 until No.1 water inlet cut-off gate B16 is closed entirely
The mechanical seal water switching of condensate pump 6 finishes.
(2), before No. two condensate pumps 24 are run, No. two cooling water cut-off gate A25 and No. two cooling water cut-off gates are opened
B30 puts into condensate pump bearing cooling water, after No. two condensate pumps 24 open machine, reduces bearing temperature；No. two water inlets are opened to cut
Only door A31 and No. two water inlet cut-off gate B35, closes No. two water inlet cut-off gate C36, using demineralized water to No. two condensate pumps 24
No. two water inlet cut-off gate B35 carry out mechanical seal, and observation No. two inlet gages 32 of monitoring after pressure is normal, slowly open two
Number return water cut-off gate 27, observation No. two pressure of return water tables 26 of monitoring, it is ensured that pressure between 0.2-0.4MPa, complete by aforesaid operations
Afterwards, start No. two condensate pumps 24, after condensate system normal operation, the mechanical seal water of No. two condensate pumps 24 is cut
It changes, slowly opens No. two water inlet cut-off gate C36, while No. two water inlet cut-off gate B35 of slowly closing, observation No. two return water pressures of monitoring
Power table 26 and No. two inlet gages 32 keep No. two water inlet cut-off gate C36 apertures until No. two water inlet cut-off gate B35 are closed entirely
Constant, so far the mechanical seal water switching of No. two condensate pumps 24 finishes.
In (one) of the present embodiment, when blocking occurs in No.1 inlet screen 4, and on-bne repair is needed to clean, No.1 is needed to enter
Mouth electrically operated gate 3 and No.1 outlet electrically operated gate 10 are closed, and the cylinder wicket of No.1 inlet screen 4 is opened, solidifying in discharge tube
It bears water, disassembles the cover of No.1 inlet screen 4, reassembled after cleaning strainer is qualified, then No.1 entrance electrically operated gate 3 and No.1 are exported
Pipeline is filled the water between electrically operated gate 10, utilizes the mechanical seal water observation monitoring No.1 pressure of return water table 7 of No.1 condensate pump 6
With No.1 inlet gage 14 and No.1 inlet pressure gauge 5, while in the injecting process open No.1 inlet screen 4 cylinder
Air-discharging cut-off gate closes the air-discharging cut-off gate of strainer cylinder, slowly opens No.1 entrance after the air in pipeline drains
Electrically operated gate 3 and No.1 export electrically operated gate 10, and so far the strainer maintenance cleaning of No.1 condensate pump 6 finishes.
In (two) of the present embodiment, when blocking occur in No. two inlet screens 21, and on-bne repair is needed to clean, No. two are needed
Entrance electrically operated gate 20 and No. two outlet electrically operated gates 29 are closed, and open the cylinder wicket of No. two inlet screens 21, in discharge tube
Condensed water, disassemble the cover of No. two inlet screens 21, reassembled after cleaning strainer is qualified, then to No. two entrance electrically operated gates 20 and two
Pipeline is filled the water between number outlet electrically operated gate 29, utilizes mechanical seal water observation No. two return water of monitoring of No. two condensate pumps 24
Pressure gauge 26 and No. two inlet gages 32 and No. two inlet pressure gauges 23, while No. two entrance filters are opened in the injecting process
The cylinder air-discharging cut-off gate of net 21 is closed the air-discharging cut-off gate of strainer cylinder, is slowly beaten after the air in pipeline drains
No. two entrance electrically operated gates 20 and No. two outlet electrically operated gates 29 are opened, so far the strainer maintenance cleaning of No. two condensate pumps 24 finishes.
In (one) of the present embodiment, the pipeline between No.1 entrance electrically operated gate 3 and No.1 inlet screen 4 is provided with No.1
Safety valve 2, and certain protection act pressure is set, after the cleaning of 4 on-bne repair of No.1 inlet screen in the injecting process, prevent pipe
Condensed water hypertonia in road causes expansion joint to deform more than the design pressure of condensate pump expansion joint, influences No.1 condensed water
Pump 6 and condensate system safe and stable operation.
In (two) of the present embodiment, the pipeline between No. two entrance electrically operated gates 20 and No. two inlet screens 21 is provided with two
Number safety valve 19, and certain protection act pressure is set, after No. two 21 on-bne repairs of inlet screen cleanings in the injecting process, prevent
Only condensed water hypertonia more than the design pressure of condensate pump expansion joint causes expansion joint to deform in pipeline, influence No. two it is solidifying
Bear water pump 24 and condensate system safe and stable operation.
Condensate system in this implementation can be suitable for the condensate system of different types of Turbo-generator Set.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to structure of the invention example explanation described in this specification.It is all according to
According to equivalence changes or simple change that the invention patent design structure, feature and principle is done, it is included in this hair
In the protection scope of bright patent.Those skilled in the art can do described specific embodiment various
The mode that the modify or supplement or adopt of various kinds is similar substitutes, and without departing from structure of the invention or surmounts present claims
Range defined in book, is within the scope of protection of the invention.
Claims (7)
1. a kind of condensate system for Turbo-generator Set, it is characterised in that: including condenser (1), No.1 safety valve
(2), No.1 entrance electrically operated gate (3), No.1 inlet screen (4), No.1 inlet pressure gauge (5), No.1 condensate pump (6), No.1
Outlet non-return door (9), No.1 outlet electrically operated gate (10), No. two safety valves (19), No. two entrance electrically operated gates (20), No. two entrance filters
Net (21), No. two entrance expansion joints (22), No. two inlet pressure gauges (23), No. two condensate pumps (24), No. two outlet non-return doors
(28), No. two outlet electrically operated gates (29), No.1 entrance expansion joint (37), No.1 shut-off valve (38) and No. two shut-off valves (39)；
The No.1 entrance electrically operated gate (3) and No. two entrance electrically operated gates (20) are connect by two-way branch pipe with condenser (1) respectively,
The No.1 inlet screen (4) connect with No.1 entrance electrically operated gate (3), and the No.1 entrance expansion joint (37) enters with No.1
Mouth strainer (4) connects, and the import of the No.1 condensate pump (6) is connect with No.1 entrance expansion joint (37), the No.1 outlet
Non-return flap (9) is connect with the outlet of No.1 condensate pump (6), No.1 outlet electrically operated gate (10) and No.1 outlet non-return door
(9) it connects, the pipeline between one end and No.1 inlet screen (4) and No.1 entrance electrically operated gate (3) of the No.1 safety valve (2)
Connection, the other end of the No.1 safety valve (2) are connect with condenser (1),
No. two inlet screens (21) connect with No. two entrance electrically operated gates (20), No. two entrance expansion joints (22) with No. two
Inlet screen (21) connection, the import of No. two condensate pumps (24) are connect with No. two entrance expansion joints (22), and described No. two
Outlet non-return door (28) is connect with the outlet of No. two condensate pumps (24), and No. two outlet electrically operated gates (29) and No. two outlets are inverse
Only door (28) connects, one end of No. two safety valves (19) and No. two inlet screens (21) and No. two entrance electrically operated gates (20) it
Between pipeline connection, the other end of No. two safety valves (19) connect with condenser (1),
No.1 outlet electrically operated gate (10) and No. two outlet electrically operated gates (29) connect with condensed water main pipe,
One end of the No.1 shut-off valve (38) and one end of No. two shut-off valves (39) respectively with No.1 condensate pump (6) and No. two
The other end of condensate pump (24) connection, the other end of the No.1 shut-off valve (38) and No. two shut-off valves (39) is and condenser
(1) it connects.
2. the condensate system according to claim 1 for Turbo-generator Set, it is characterised in that: the No.1 condensation
It is equipped on pipeline between water pump (6) and No.1 entrance expansion joint (37) No.1 inlet pressure gauge (5), No. two condensed waters
No. two inlet pressure gauges (23) are installed on pipeline between pump (24) and No. two entrance expansion joints (22).
3. the condensate system according to claim 1 for Turbo-generator Set, it is characterised in that: the condensation water system
System, further include No.1 water inlet cut-off gate A(13), No.1 inlet gage (14), No.1 water inlet non-return flap A(15), No.1 water inlet
Cut-off gate B(16), No.1 intake non-return flap B(17), No.1 intake cut-off gate C(18), No. two water inlet cut-off gate A(31), No. two
Inlet gage (32), No. two water inlet non-return flap A(33), No. two water inlet non-return flap B(34), No. two water inlet cut-off gate B(35) and
No. two water inlet cut-off gate C(36)；
The No.1 is intake cut-off gate B(16) import and No. two water inlet cut-off gate B(35) import be connected to desalination water system
Road under the overall leadership,
The No.1 is intake cut-off gate B(16) outlet and No.1 intake non-return flap A(15) import connect, the No.1 is intake
Non-return flap A(15) outlet and No.1 intake cut-off gate A(13) import connect, the No.1 is intake cut-off gate A(13) out
Mouth is connect with the import of No.1 condensate pump (6),
The No.1 is intake cut-off gate C(18) import connect with the condensing water conduit that No.1 exports electrically operated gate (10), described one
Number water inlet cut-off gate C(18) outlet and No.1 intake non-return flap B(17) import connect, the No.1 water inlet non-return flap B
(17) outlet is connect with the import of No.1 inlet gage (14), the outlet of the No.1 inlet gage (14) and No.1 into
Water non-return flap A(15) and No.1 intake cut-off gate A(13) between pipeline connection,
It is described No. two water inlet cut-off gate B(35) outlet with No. two water inlet non-return flap A(33) import connect, it is described No. two intake
Non-return flap A(33) outlet with No. two intake cut-off gate A(31) import connect, it is described No. two water inlet cut-off gate A(31) out
Mouth is connect with the import of No. two condensate pumps (24),
It is described No. two water inlet cut-off gate C(36) import with No. two outlets electrically operated gate (29) condensing water conduit connect, described two
Number water inlet cut-off gate C(36) outlet with No. two water inlet non-return flap B(34) import connect, No. two water inlet non-return flaps B
(34) outlet is connect with the import of No. two inlet gages (32), the outlet of No. two inlet gages (32) with No. two into
Water non-return flap A(33) and No. two water inlet cut-off gate A(31) between pipeline connection.
4. the condensate system according to claim 1 for Turbo-generator Set, it is characterised in that: the condensation water system
System, further include No.1 pressure of return water table (7), No.1 return water cut-off gate (8), No.1 cooling water cut-off gate A(11), No.1 cooling water
Cut-off gate B(12), No. two cooling water cut-off gate A(25), No. two pressure of return water tables (26), No. two return water cut-off gates (27) and No. two
Cooling water cut-off gate B(30)；
The No.1 return water cut-off gate (8), No.1 cooling water cut-off gate A(11) and No.1 cooling water cut-off gate B(12) with one
The connection of number condensate pump (6), the No.1 pressure of return water table (7) are mounted on No.1 return water cut-off gate (8) and No.1 condensate pump
(6) on the pipeline between,
No. two return water cut-off gates (27), No. two cooling water cut-off gate A(25) and No. two cooling water cut-off gate B(30) with two
The connection of number condensate pump (24), No. two pressure of return water tables (26) are mounted on No. two return water cut-off gates (27) and No. two condensed waters
It pumps on the pipeline between (24).
5. a kind of based on the condensate system for being used for Turbo-generator Set described in any one of claim 1-4 claim
Operation method, it is characterised in that: the operation method is as follows:
(1), before No.1 condensate pump (6) operation, No.1 cooling water cut-off gate A(11 is opened) and No.1 cooling water cut-off gate B
(12), condensate pump bearing cooling water is put into, in No.1 condensate pump (6) Qi Jihou, reduces bearing temperature；Open No.1 water inlet
Cut-off gate A(13) and No.1 water inlet cut-off gate B(16), close No.1 water inlet cut-off gate C(18), No.1 is condensed using demineralized water
The No.1 water inlet cut-off gate B(16 of water pump (6)) mechanical seal is carried out, observation monitoring No.1 inlet gage (14), pressure is normal
Afterwards, slowly open No.1 return water cut-off gate (8), observation monitoring No.1 pressure of return water table (7), it is ensured that pressure 0.2-0.4MPa it
Between, after the completion of aforesaid operations, start No.1 condensate pump (6), after condensate system normal operation, by No.1 condensate pump (6)
Mechanical seal water switch over, slowly open No.1 intake cut-off gate C(18), while slowly closing No.1 intake cut-off gate B
(16), observation monitoring No.1 pressure of return water table (7) and No.1 inlet gage (14), the cut-off gate B(16 until No.1 is intake) it is complete
Close, No.1 kept to intake cut-off gate C(18) aperture is constant, and so far the mechanical seal water switching of No.1 condensate pump (6) finishes；
(2), before No. two condensate pump (24) operations, No. two cooling water cut-off gate A(25 are opened) and No. two cooling water cut-off gate B
(30), condensate pump bearing cooling water is put into, in No. two condensate pump (24) Qi Jihou, reduces bearing temperature；Open No. two into
Water cut-off gate A(31) and No. two water inlet cut-off gate B(35), close No. two water inlet cut-off gate C(36), it is solidifying to No. two using demineralized water
Bear water No. two water inlet cut-off gate B(35 of pump (24)) mechanical seal is carried out, observation No. two inlet gages (32) of monitoring, pressure is just
Chang Hou slowly opens No. two return water cut-off gates (27), observation No. two pressure of return water tables (26) of monitoring, it is ensured that pressure is in 0.2-
Between 0.4MPa, after the completion of aforesaid operations, start No. two condensate pumps (24), it is solidifying by No. two after condensate system normal operation
The mechanical seal water for bearing water pump (24) switches over, and slowly opens No. two water inlet cut-off gate C(36), at the same slowly closing two into
Water cut-off gate B(35), observation No. two pressure of return water tables (26) of monitoring and No. two inlet gages (32), until No. two water inlet cut-offs
Door B(35) it is complete close, keep No. two water inlet cut-off gate C(36) aperture is constant, the so far mechanical seal water of No. two condensate pumps (24)
Switching finishes.
6. the operation method of the condensate system according to claim 5 for Turbo-generator Set, it is characterised in that:
In (one), when blocking occur in No.1 inlet screen (4), and on-bne repair is needed to clean, No.1 entrance electrically operated gate is needed
(3) it is closed with No.1 outlet electrically operated gate (10), opens the cylinder wicket of No.1 inlet screen (4), the condensation in discharge tube
Water is disassembled the cover of No.1 inlet screen (4), is reassembled after cleaning strainer is qualified, then go out to No.1 entrance electrically operated gate (3) and No.1
Pipeline is filled the water between mouth electrically operated gate (10), utilizes the mechanical seal water observation monitoring No.1 return water of No.1 condensate pump (6)
Pressure gauge (7) and No.1 inlet gage (14) and No.1 inlet pressure gauge (5), while opening No.1 in the injecting process and entering
The cylinder air-discharging cut-off gate of mouth strainer (4) closes the air-discharging cut-off gate of strainer cylinder after the air in pipeline drains,
No.1 entrance electrically operated gate (3) and No.1 outlet electrically operated gate (10) are slowly opened, so far the strainer maintenance of No.1 condensate pump (6) is clear
It washes complete；
In (two), when blocking occur in No. two inlet screens (21), and on-bne repair is needed to clean, need No. two entrances electronic
Door (20) and the closings of No. two outlet electrically operated gates (29), open the cylinder wicket of No. two inlet screens (21), in discharge tube
Condensed water, disassembles the cover of No. two inlet screens (21), reassembles after cleaning strainer is qualified, then to No. two entrance electrically operated gates (20) and
Pipeline is filled the water between No. two outlet electrically operated gates (29), utilizes the mechanical seal water observation monitoring two of No. two condensate pumps (24)
Number pressure of return water table (26) and No. two inlet gages (32) and No. two inlet pressure gauges (23), while being beaten in the injecting process
The cylinder air-discharging cut-off gate for opening No. two inlet screens (21) closes the emptying of strainer cylinder after the air in pipeline drains
Gas cut-off gate slowly opens No. two entrance electrically operated gates (20) and No. two outlet electrically operated gates (29), so far No. two condensate pumps (24)
Strainer maintenance cleaning finish.
7. the operation method of the condensate system according to claim 5 for Turbo-generator Set, it is characterised in that:
In (one), the pipeline between No.1 entrance electrically operated gate (3) and No.1 inlet screen (4) is provided with No.1 safety valve
(2), and certain protection act pressure is set, after the cleaning of No.1 inlet screen (4) on-bne repair in the injecting process, prevents pipeline
Middle condensed water hypertonia causes expansion joint to deform more than the design pressure of condensate pump expansion joint, influences No.1 condensate pump
(6) and condensate system safe and stable operation；
In (two), the pipeline between No. two entrance electrically operated gates (20) and No. two inlet screens (21) is provided with No. two safety
Valve (19), and certain protection act pressure is set, after No. two inlet screen (21) on-bne repair cleanings in the injecting process, prevent
Condensed water hypertonia in pipeline causes expansion joint to deform more than the design pressure of condensate pump expansion joint, influences No. two condensations
Water pump (24) and condensate system safe and stable operation.
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| CN201910242379.XA CN110030046B (en) | 2019-03-28 | 2019-03-28 | Condensate water system for steam turbine generator unit and operation method |
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| CN201910242379.XA CN110030046B (en) | 2019-03-28 | 2019-03-28 | Condensate water system for steam turbine generator unit and operation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352942A (en) * | 2021-12-09 | 2022-04-15 | 华电国际电力股份有限公司天津开发区分公司 | Water pump mechanical sealing system capable of automatically switching sealing water source and adjusting pressure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114352942B (en) * | 2021-12-09 | 2023-07-25 | 华电国际电力股份有限公司天津开发区分公司 | Water pump mechanical sealing system capable of automatically switching sealing water source and adjusting pressure |
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