CN110186028A - A kind of nuclear power starting separator - Google Patents
A kind of nuclear power starting separator Download PDFInfo
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- CN110186028A CN110186028A CN201910551614.1A CN201910551614A CN110186028A CN 110186028 A CN110186028 A CN 110186028A CN 201910551614 A CN201910551614 A CN 201910551614A CN 110186028 A CN110186028 A CN 110186028A
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- separator
- cylinder
- separation device
- nuclear power
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/26—Steam-separating arrangements
- F22B37/30—Steam-separating arrangements using impingement against baffle separators
- F22B37/306—Steam-separating arrangements using impingement against baffle separators specially adapted for steam generators of nuclear power plants
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
A kind of nuclear power starting separator solves the problems, such as that the hydrophobic and steam generated when the evaporator module cold and hot starting of existing nuclear power unit can not be used directly and wasting, belong to technical field of nuclear power.The present invention is used between evaporator and steam header, and upper cover and lower head are respectively welded at the top and bottom of cylinder；Secondary separation device is arranged on the intracorporal top of cylinder, the lower section of secondary separation device is arranged in level-one separator, multiple tangential separation guide pipes are provided on the circumferencial direction on the outside of cylinder, the high parameter fluid of evaporator enters cylinder from multiple tangential separation guide pipes, and it is rotated under effect of inertia along inner wall, then successively separated through level-one separator and secondary separation device；It is provided with discharge of steam interface on upper cover, for discharging the dry saturated steam after secondary separation device separates, drain discharge interface is provided on lower head, it is hydrophobic for discharging the saturation through level-one separator and secondary separation device separation.
Description
Technical field
The present invention relates to a kind of starting separator, in particular to a kind of nuclear power starting separator belongs to nuclear power technology neck
Domain.
Background technique
When nuclear power unit cold conditions or hot starting, hot start, evaporator temperature is continuously increased, and steam parameter increases continuously until generation
Steam meet nuclear power unit operation requirement, steam just enters junior's steam turbine equipment and generates electricity, and this period before
The steam of generation and it is hydrophobic can only be exhausted in the circulating cycle since parameter is unsatisfactory for service condition, cause the waste of working medium.Evaporator
Module needs to work a period of time after start-up, for steady-state evaporation device water level, the hydrophobic and parameter by expansion is needed not conform to
The initial stage steam discharge evaporator of lattice is with steady-state evaporation device liquid level.In order to which this part is hydrophobic and steam is recycled, need
In the steam access high pressure auxiliary steam header that this part high parameter medium is generated, but the heel row of evaporator module starting
Hydrophobic and steam out does not simultaneously meet demand of the high pressure auxiliary steam header to steam quality, so needing through special equipment
It could complete this and utilize process.
Summary of the invention
For existing nuclear power unit the starting of evaporator module cold and hot when the hydrophobic and steam that generates, parameter can not be direct
Using and wasting problem, the present invention provides a kind of to be made steam can satisfy the nuclear power that utilizes again to use by specially treated
Start separator.
A kind of nuclear power of the invention starting separator, is used between evaporator and steam header, the starting separator
Including cylinder 1, upper cover 2, lower head 3, multiple tangential separation guide pipes 5, level-one separator 7 and secondary separation device 8；
Upper cover is welded on the top of cylinder 1, and lower head 3 is welded on the bottom of cylinder 1, forms separator body；
Level-one separator 7 and secondary separation device 8 are arranged inside cylinder 1, and secondary separation device 8 is arranged in cylinder 1
The lower section of secondary separation device 8 is arranged in top, level-one separator 7, is provided on the circumferencial direction in 1 outside of cylinder multiple
It is connected to inside tangential separation guide pipe, multiple tangential separation guide pipes and cylinder 1, connectivity part is located under level-one separator 7
The high parameter fluid in portion, evaporator enters cylinder 1 from multiple tangential separation guide pipes 5, and revolves under effect of inertia along inner wall
Turn, then is successively separated through level-one separator 7 and secondary separation device 8；
Discharge of steam interface 11 is provided on upper cover, for discharging the dry saturated steam after the separation of secondary separation device 8,
Drain discharge interface 12 is provided on lower head 3, for discharge through level-one separator 7 and secondary separation device 8 separation
It is saturated hydrophobic.
Preferably, the level-one separator 7 includes annular erosion control backplate, guiding inner cylinder and hollow round table shape baffle；
Annular erosion control backplate is arranged on the inner wall of cylinder 1, the high parameter fluid entered by tangential separation guide pipe along
The inner wall of annular erosion control backplate rotates；The large port of hollow round table shape baffle upward, the large port of hollow round table shape baffle it is outer
It encloses and is along the circumferential direction fixedly connected with the inner wall of annular erosion control backplate, the portlet of hollow round table shape baffle and the top of guiding inner cylinder
The fixed connection in port, forms separated structure, along the high parameter fluid that annular erosion control backplate inner wall rotates, keeps off in hollow round table shape
The guiding role of plate and guiding inner cylinder outer surface, is separated into saturation moist steam and saturation is hydrophobic, wherein saturation moist steam is oriented to again
Inner cylinder flows upwardly into.
Preferably, the secondary separation device 8 includes upper bracing ring, lower bracing ring and filter；
Lower bracing ring outer surface is circumferentially fixedly connected between the inner wall of cylinder 1, and upper bracing ring is fixed on filter
Upper surface；
The filter is corrugated plating or silk screen, the plate of corrugated plating away from, thickness is adjustable, the mesh number of silk screen, thickness
It adjusts.
Preferably, the starting separator further includes safety monitoring interface 10, the safety monitoring interface 10 includes temperature
Degree monitoring interface, pressure monitoring interface and level sensing interface, are arranged on cylinder 1, the temperature being respectively used in detection cylinder 1
Degree, pressure and liquid level.
Preferably, the starting separator further includes spray equipment 6, it is arranged on cylinder 1, for adjusting in cylinder 1
The pressure and temperature parameter in portion.
Preferably, the separator further includes lifting lug 4, lifting lug 4 is fixed on the top of cylinder 1, for hanging for separator
Dress.
Preferably, the separator further includes skirt 13, the bottom of lower head 3 is arranged in skirt 13, is used for separator
Support.
Preferably, being provided with manhole 9 on the wall of cylinder 1, the manhole 9 is located at the lower section of secondary separation device 8, uses
Secondary separation device 8 inside cylinder 1.
Beneficial effects of the present invention, separator of the invention is using tangential separation guide frame and point of two-stage separator
From form, the steam quality isolated is promoted to 98% or more, two-stage separator is added by tangential separation guide frame
Separate mode, realize will nuclear power evaporator starting and shutdown during generate the hydrophobic steam for being completely separated into required parameter and
It is hydrophobic, and the two is transported to distinct device and is utilized again.The present invention can accept, recycle the working medium and heat of evaporator module
Amount, avoids the waste of steam, meets the conversion between various water-vapour operating condition and transmits the demand of heat, and guarantees entire nuclear power
The safety and stablization of the therrmodynamic system starting of unit.
2. the extra hydrophobic discharge and recycling when the present invention is directed to nuclear power evaporator start and stop heap play key work
With extra hydrophobic introducing being started separator, while through the invention may be used to guarantee that evaporator is safely controllable in start and stop
Using the partial heat and steam, require mass dryness fraction must be added before using some vapor according to the start and stop of nuclear power generating sets system
It is just reusable to be promoted, present invention can ensure that mass dryness fraction reaches required numerical value, and the present invention before steam reuses
Using standing form, space occupied is small.By nuclear power unit to the different mass dryness fractions requirement at equipment export, by adjusting two fractions
Architectural characteristic from device 8 can freely control the outlet mass dryness fraction of equipment steam.
3. it is of the invention be provided with the measurement interface in relation to security control such as pressure, temperature, liquid level in equipment and match supply
Detecting instrument instrument, nuclear power plant higher for security requirement is more reliable, can monitor in real time to equipment, by equipment failure
Risk is preferably minimized, and protection whole equipment guarantees nuclear power evaporator by safely and steadily running during reactor start and stop heap
The safety of equipment.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is tangential separation guide pipe schematic diagram in Fig. 1.
Fig. 3 is level-one separator separation principle schematic diagram；
Fig. 4 is secondary separation device separation principle schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be further explained below with reference to the attached drawings and specific examples, but not as the limitation of the invention.
The nuclear power of present embodiment starting separator, the evaporator starting and shutdown for nuclear power therrmodynamic system loop are cold
But it uses, when unit cold conditions or hot starting, hot start, the water supply through evaporator module heating introduces starting separator, can uniformly spread
It is sufficiently separated carbonated drink, steam is filtered after part water droplet promotes mass dryness fraction using the steam-water separator on top and is discharged by top, point
The steam separated out enters high pressure auxiliary steam header, and the saturated water isolated enters oxygen-eliminating device or condenser.Unit shutdown process
It is opposite with unit starting process.Start separator under the various operating conditions such as the water-water, water-vapour, vapour-water that evaporator module generates,
It accepts, the working medium and heat of recycling evaporator module, meet the conversion between various water-vapour operating condition and transmits the demand of heat.
Guarantee the safety and stablization of the therrmodynamic system starting of entire nuclear power unit.
The starting separator of present embodiment include cylinder 1, upper cover 2, lower head 3, multiple tangential separation guide pipes 5,
Level-one separator 7 and secondary separation device 8；
Upper cover is welded on the top of cylinder 1, and lower head 3 is welded on the bottom of cylinder 1, forms separator body；
Level-one separator 7 and secondary separation device 8 are arranged inside cylinder 1, and secondary separation device 8 is arranged in cylinder 1
The lower section of secondary separation device 8 is arranged in top, level-one separator 7, is provided on the circumferencial direction in 1 outside of cylinder multiple
It is connected to inside tangential separation guide pipe, multiple tangential separation guide pipes and cylinder 1, connectivity part is located under level-one separator 7
The high parameter fluid in portion, evaporator enters cylinder 1 from multiple tangential separation guide pipes 5, and revolves under effect of inertia along inner wall
Turn, and carries out carbonated drink crude separation, then successively separated through level-one separator 7 and secondary separation device 8；
Discharge of steam interface 11 is provided on upper cover, for discharging the dry saturated steam after the separation of secondary separation device 8,
Drain discharge interface 12 is provided on lower head 3, for discharge through level-one separator 7 and secondary separation device 8 separation
It is saturated hydrophobic.
When nuclear power unit cold conditions or hot starting, hot start, the starting that the water supply of evaporator module introduces present embodiment is separated
Multiple tangential separation guide pipes 5 of device carry out carbonated drink initial gross separation, and level-one separator 7 is sufficiently separated carbonated drink, and moist steam is again
By the discharge of steam interface 11 at top after the second level water separator 8 on top is filtered dry the steam to mass dryness fraction not less than 98%
Discharge.Be sufficiently separated carbonated drink, receive, recycle the working medium and heat of evaporator module, meet conversion between water-vapour operating condition and
Transmit the novel starting separator of heat demand；
The effect of existing separator is dilatation, decompression, and the promotion purity of steam-water separation is 70% or so, promotes purity
It is not able to satisfy the requirement of steam header in current nuclear power unit.The separator of present embodiment structure is using successively using tangential
The steam quality isolated is promoted to 98% or more by separation, level-one separation and the second-order separation, meets the requirement of nuclear power unit.
In preferred embodiment, the level-one separator 7 of present embodiment includes annular erosion control backplate, guiding inner cylinder and hollow
Truncated cone-shaped baffle；
Annular erosion control backplate is arranged on the inner wall of cylinder 1, the high parameter fluid entered by tangential separation guide pipe along
The inner wall of annular erosion control backplate rotates；The large port of hollow round table shape baffle upward, the large port of hollow round table shape baffle it is outer
It encloses and is along the circumferential direction fixedly connected with the inner wall of annular erosion control backplate, the portlet of hollow round table shape baffle and the top of guiding inner cylinder
The fixed connection in port, along the high parameter fluid that annular erosion control backplate inner wall rotates, in hollow round table shape baffle and guiding inner cylinder
The guiding role of outer surface, is separated into saturation moist steam and saturation is hydrophobic, wherein saturation moist steam is oriented to inner cylinder and flows upwardly into again.
The level-one separator 7 of present embodiment is welded on inside cylinder 1, by annular erosion control backplate, is oriented to inner cylinder, hollow
Truncated cone-shaped bumper plate composition.Annular impingement baffle is welded on 1 inner wall of cylinder, and as liner, high parameter fluid passes through tangential separation
Guide pipe 5 enters inside cylinder 1, rotates under effect of inertia along inner wall, and carry out carbonated drink crude separation, to prevent in cylinder 1
Wall is impaired by two-phase erosion bearing structure for a long time, extends 1 service life of cylinder using the inner lining structure of annular erosion control backplate.By thick
Mixed two-phase fluid is separated into saturation by guiding inner cylinder and conical baffled structure-directing effect by isolated two-phase fluid
Moist steam and saturation it is hydrophobic, drained into below equipment under gravity and conical baffled effect by hydrophobic, steam then passes through in water conservancy diversion
Cylinder flows into above equipment, completes level-one crude separation process.According to the hydrophobic flow that enters by adjusting inner cylinder and conical baffled structure
Control the degree of level-one crude separation.
In preferred embodiment, the secondary separation device 8 of present embodiment includes upper bracing ring, lower bracing ring and filter；
Lower bracing ring outer surface is circumferentially fixedly connected between the inner wall of cylinder 1, and upper bracing ring is fixed on filter
Upper surface；
The filter is corrugated plating or silk screen, the plate of corrugated plating away from, thickness is adjustable, the mesh number of silk screen, thickness
It adjusts.
The secondary separation device 8 of present embodiment is welded on inside cylinder 1, is made of bracing ring and second-stage separator.Branch
Support ring effect is the weight of the second-stage separator of support top, and fixes second-stage separator.Second-stage separator goes out according to different
The requirement of dry degree, can be used corrugated plating and web form.General mass dryness fraction preferentially uses corrugated plating form, two fractions in 90-95%
Plate from device corrugated plating is adjustable away from being required according to mass dryness fraction.Mass dryness fraction requires preferentially to use web form, meshcount when 95-100%
Adjustment can also be required according to rear mass dryness fraction is filtered dry.Secondary separation device 8 is using the modular unit detachably repaired.It is steamed according to outlet
Vapour mass dryness fraction requires and level-one separation degree, is filtered dry the dry of rear equipment export steam by control silk screen and corrugated board structures control
Degree.
In preferred embodiment, the starting separator of present embodiment further includes safety monitoring interface 10, the safety monitoring
Interface 10 includes temperature monitoring interface, pressure monitoring interface and level sensing interface, is arranged on cylinder 1, is respectively used to detect
Temperature, pressure and liquid level in cylinder 1.
The safety monitoring interface 10 and cylinder 1 of present embodiment are using being welded to connect, in all directions to the pressure of equipment, temperature
The important parameters such as degree, liquid level are monitored and protect, and parameters in real-time monitoring equipment operation are additionally provided with relief valve connection
Prevent equipment superpressure.
In preferred embodiment, the starting separator of present embodiment further includes spray equipment 6, is arranged on cylinder 1, is used for
The pressure and temperature parameter inside cylinder 1 is adjusted, is acted by safety monitoring system feedback control pipe valve, adjustment equipment fortune
Row parameter.
The separator of present embodiment further includes lifting lug 4, and lifting lug 4 is fixed on the top of cylinder 1, for hanging for separator
Dress.
The separator of present embodiment further includes skirt 13, and the bottom of lower head 3 is arranged in skirt 13, for separator
Support.
Present embodiment is provided with manhole 9 on the wall of cylinder 1, and the manhole 9 is located under secondary separation device 8
Side, for the secondary separation device 8 inside cylinder 1.
Although describing the present invention herein with reference to specific embodiment, it should be understood that, these realities
Apply the example that example is only principles and applications.It should therefore be understood that can be carried out to exemplary embodiment
Many modifications, and can be designed that other arrangements, without departing from spirit of the invention as defined in the appended claims
And range.It should be understood that different appurtenances can be combined by being different from mode described in original claim
Benefit requires and feature described herein.It will also be appreciated that the feature in conjunction with described in separate embodiments can be used
In other described embodiments.
Claims (8)
1. a kind of nuclear power starting separator, between evaporator and steam header, which is characterized in that the starting separator
Including cylinder (1), upper cover (2), lower head (3), multiple tangential separation guide pipes (5), level-one separator (7) and two fractions
From device (8)；
Upper cover is welded on the top of cylinder (1), and lower head (3) is welded on the bottom of cylinder (1), forms separator body；
Level-one separator (7) and secondary separation device (8) setting are internal in cylinder (1), and secondary separation device (8) is arranged in cylinder
The circumferencial direction in the lower section of secondary separation device (8), on the outside of cylinder (1) is arranged in body (1) top, level-one separator (7)
On be provided with multiple tangential separation guide pipes (5), be connected to inside multiple tangential separation guide pipes and cylinder (1), connectivity part is located at
The high parameter fluid of the lower part of level-one separator (7), evaporator enters cylinder (1) from multiple tangential separation guide pipes (5), and
It rotates under effect of inertia along inner wall, then is successively separated through level-one separator (7) and secondary separation device (8)；
Discharge of steam interface (11) are provided on upper cover, for discharging the dry saturated steam after secondary separation device (8) separation,
Drain discharge interface (12) are provided on lower head (3), for discharging through level-one separator (7) and secondary separation device
(8) saturation separated is hydrophobic.
2. nuclear power according to claim 1 starting separator, which is characterized in that the level-one separator (7) includes
Annular erosion control backplate, guiding inner cylinder and hollow round table shape baffle；
Annular erosion control backplate is arranged on the inner wall of cylinder (1), the high parameter fluid entered by tangential separation guide pipe (5) along
The inner wall of annular erosion control backplate rotates；The large port of hollow round table shape baffle upward, the large port of hollow round table shape baffle it is outer
It encloses and is along the circumferential direction fixedly connected with the inner wall of annular erosion control backplate, the portlet of hollow round table shape baffle and the top of guiding inner cylinder
The fixed connection in port, forms separated structure, along the high parameter fluid that annular erosion control backplate inner wall rotates, keeps off in hollow round table shape
The guiding role of plate and guiding inner cylinder outer surface, is separated into saturation moist steam and saturation is hydrophobic, wherein saturation moist steam is oriented to again
Inner cylinder flows upwardly into.
3. nuclear power according to claim 2 starting separator, which is characterized in that the secondary separation device (8) includes
Upper bracing ring, lower bracing ring and filter；
Lower bracing ring outer surface is circumferentially fixedly connected between the inner wall of cylinder (1), and upper bracing ring is fixed on the upper of filter
Surface；
The filter is corrugated plating or silk screen, the plate of corrugated plating away from, thickness is adjustable, the mesh number of silk screen, thickness are adjustable.
4. nuclear power according to claim 3 starting separator, which is characterized in that the starting separator further includes safety
It monitoring interface (10), the safety monitoring interface (10) includes temperature monitoring interface, pressure monitoring interface and level sensing interface,
It is arranged on cylinder (1), temperature, pressure and the liquid level being respectively used in detection cylinder (1).
5. nuclear power according to claim 4 starting separator, which is characterized in that the starting separator further includes spray
Device (6) is arranged on cylinder (1), for adjusting the internal pressure and temperature parameter of cylinder (1).
6. nuclear power according to claim 5 starting separator, which is characterized in that the separator further includes lifting lug (4),
Lifting lug (4) is fixed on the top of cylinder (1), the lifting for separator.
7. nuclear power according to claim 6 starting separator, which is characterized in that the separator further includes skirt
(13), the support in the bottom of lower head (3), for separator is arranged in skirt (13).
8. nuclear power according to claim 7 starting separator, which is characterized in that someone is arranged on the wall of cylinder (1)
Hole (9), the manhole (9) are located at the lower section of secondary separation device (8), the secondary separation device (8) internal for cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910551614.1A CN110186028A (en) | 2019-06-24 | 2019-06-24 | A kind of nuclear power starting separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910551614.1A CN110186028A (en) | 2019-06-24 | 2019-06-24 | A kind of nuclear power starting separator |
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| Publication Number | Publication Date |
|---|---|
| CN110186028A true CN110186028A (en) | 2019-08-30 |
Family
ID=67723178
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910551614.1A Pending CN110186028A (en) | 2019-06-24 | 2019-06-24 | A kind of nuclear power starting separator |
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| CN (1) | CN110186028A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111928215A (en) * | 2020-07-02 | 2020-11-13 | 合肥通用机械研究院有限公司 | High-efficient compact steam generator |
| CN112325690A (en) * | 2020-11-17 | 2021-02-05 | 中冶南方工程技术有限公司 | Vertical steam heat accumulator |
| CN113446584A (en) * | 2021-06-24 | 2021-09-28 | 华能秦煤瑞金发电有限责任公司 | Power plant boiler water circulation system |
| CN115095397A (en) * | 2022-06-30 | 2022-09-23 | 江苏核电有限公司 | Separation device and separation method for steam exhaust of high-pressure cylinder of steam turbine for nuclear power plant |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111928215A (en) * | 2020-07-02 | 2020-11-13 | 合肥通用机械研究院有限公司 | High-efficient compact steam generator |
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| CN115095397A (en) * | 2022-06-30 | 2022-09-23 | 江苏核电有限公司 | Separation device and separation method for steam exhaust of high-pressure cylinder of steam turbine for nuclear power plant |
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Application publication date: 20190830 |
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