A kind of steam turbine atomizer
Technical field
The utility model relates to a kind of equipment for steam temperature reducing, and in particular to a kind of steam turbine is sprayed with adjustable atomization
Head.
Background technique
Steam turbine is a kind of equipment for converting mechanical energy for steam thermal energy, and steam is typically in high temperature and pressure in steam turbine
State, and be frequently necessary to when handling turbine discharge carry out desuperheat processing.
In steam turbine condensation unit, turbine discharge can enter condenser, and the vacuum degree of condenser is to guarantee steamer
An important factor for machine safe and stable operation, may cause condenser vacuum destruction, steam turbine is forced to stop if vapor (steam) temperature is excessively high
Machine causes unnecessary economic loss.In addition, if vapor (steam) temperature has been more than the design temperature of condenser itself, it may be in equipment
Security risk is buried in terms of intensity, not only influences system stable operation, can also be jeopardized using safe.And in back pressure unit, vapour
Energy contained by turbine discharge is higher, generally can be otherwise utilized, it is also desirable to by steam temperature reducing to suitable numerical value.Atomizer is logical
It crosses and atomizes the liquid into, the heat exchange area between steam is significantly increased, realize efficient cooling.Meanwhile not for steam turbine
Same operating condition, adjustable atomizer more flexible can must adjust cooling water inflow, can not only enhance system reliability, can also make steam
Utilization it is more reasonable.
Atomizer is divided into mechanical atomization, medium atomization and ultrasonic atomization etc..And mechanical atomization is divided into pressure type
Atomization and two class of rotation type atomization.The atomizer of pressure type is without pivoting part, compared with helicoid atomizer, although atomization
Effect is slightly not so good as, and reliability is stronger, and service life is more long.In addition, the processing and manufacturing of pressure type atomizer is relatively easy, add
Work is high-efficient more, and cost controllability is strong, meets the demand of cost Precise control instantly.
Utility model content
To take into account atomizing effect and reliability, the service life of atomizer is improved, guarantees the desuperheat effect of turbine discharge
Fruit ensures turbine system reliability, improves the utilization efficiency of steam, provide a kind of steam turbine adjustable atomizer.
The utility model discloses a kind of adjustable atomizers of steam turbine, including screwed pipe, water inlet pipe, cover board I, cover board
One end of II, inner sleeve, outer tube, cover board III and spray head, the water inlet pipe is connected to screwed pipe, facilitates the atomizer
Installation and removal, the other end are connected to cover board III, and the cover board III outer sleeve for connecting constitutes cylindrical lumens, the spray head end
Equipped with nozzle, as the outlet of atomized drop, the cover board I is set in the cylindrical lumens that cover board III and outer tube are constituted, institute
It states cover board and is connected with adjuster, the adjuster is fastened by screw thread and spray head, when needs are different meets different flow condition,
It can be rotated screw thread, move up and down adjuster, cover the screw thread of different groups of numbers, change capacity of sprinkler.The inner sleeve pipe screw thread connects
It is connected on outer sleeve inner wall, the cover board II is intracavitary in the flow regulator that cover board I and adjuster are constituted, and cover board II
It is connected with diversion pipe and constitutes rotation chamber, fluid obtains the angular speed of rotation under the action of eccentric structure in chamber, described
Water conservancy diversion pipe outer wall is close to adjuster inner wall and is connected through a screw thread, and is connected through a screw thread and controls the number that the eccentric diversion trench is opened
Amount realizes that the multistage of the atomizer flow is adjusted, and the water conservancy diversion tube wall is equipped with several eccentric water conservancy diversion through tube wall
Hole, covering adjustable range of the adjuster on diversion pipe are greater than distribution of the eccentric deflector hole on diversion pipe.
Further, the cover board I is equipped with concora crush hole, to guarantee the pressure balance inside and outside regulating device.
Further, several eccentric deflector holes are distributed along the even circumferential of diversion pipe, and eccentric deflector hole and rotation
It is tangent to turn chamber.
Further, the spray head is equipped with deflector hole, with the effect of rotational flow strengthening room.
Further, the spray head is welded with diversion pipe and inner sleeve respectively.
The characteristics of the utility model and the utility model has the advantages that
1. the utility model structure is simple, cost is controllable, and atomizing effect is good, effect stability, long service life.
2. the utility model by diversion trench eccentric setting, it is tangent with chamber, rotate fluid acquisition in chamber, and root
Data bulk is separated by 120 ° or 180 ° arrangements, realizes better stability;
3. the utility model many places helicitic texture connects, not only installation, removal, replacement is convenient, also achieves the more of flow
Grade is adjusted.
4. the utility model is provided with diversion trench in spray head inner wall, it is able to guide the movement of rotating fluid, and be conducive to control
The atomizing angle of atomizer.
5. the utility model simulates the course of work of spray head, ensure that the atomizing effect of spray head by analytical calculation.
6. the utility model examines the actual effect of atomizer by test.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the structural schematic diagram of diversion pipe in Section A-A in Fig. 1.
Specific embodiment
Below by conjunction with attached drawing, the utility model will be further described.
The adjustable atomizer of a kind of steam turbine as shown in Fig. 1 to 2, including screwed pipe 1, water inlet pipe 2, cover board I3, lid
One end of plate II11, inner sleeve 6, outer tube 12, cover board III13 and spray head 7, the water inlet pipe 2 is connected to screwed pipe 1, the other end
It is connected to cover board III13, the cover board III13 outer sleeve for connecting 12 constitutes cylindrical lumens, and 7 end of spray head is equipped with nozzle 8,
The cover board I3 is set in the cylindrical lumens that cover board III13 and outer tube 12 are constituted, and the cover board I3 is connected with adjuster 4,
The inner sleeve 6 is threadedly connected on 12 inner wall of outer tube, and the cover board II11 is set to the flow that cover board I3 and adjuster 4 are constituted
It is intracavitary in regulating device, and cover board II11 is connected with diversion pipe 5 and constitutes rotation chamber, 5 outer wall of diversion pipe is close to adjuster 4
Inner wall is simultaneously connected through a screw thread, and 5 tube wall of diversion pipe is equipped with several eccentric deflector holes 10 through tube wall.The adjuster
4 are greater than eccentric deflector hole 10 cover board I3 described in the distribution on diversion pipe 5 in the covering adjustable range on diversion pipe 5
It is equipped with concora crush hole.Several eccentric deflector holes 10 are distributed along the even circumferential of diversion pipe 5, and eccentric deflector hole 10 and rotation
Chamber is tangent.The spray head 7 is equipped with deflector hole 9.The spray head 7 is welded with diversion pipe 5 and inner sleeve 6 respectively.
Detailed process when fluid passes through the utility model is: the fluid for needing to be atomized enters water inlet by water inlet pipe 2
In chamber, eccentric deflector hole 10 is delivered to by water inlet chamber.After water enters eccentric deflector hole 10, due to itself and diversion pipe 5
Interior chamber is eccentric, tangent setting is rotated in rotating drum room and flowed downward so that fluid obtains the speed of a circumferential direction.It adjusts
The quantity that device 4 is opened by the rotation of control screw thread, adjustable eccentric deflector hole is saved, and then controls the flow of water, realizes atomization
The multistage of spray head water is adjusted.Fluid enters spray head 7 after being sufficiently mixed in rotating drum room, continues downward spiral movement.Due to
It is provided with deflector hole 9 on spray head 7, fluid can be guided to run, thus atomizing angle when control is projected from nozzle 8.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel conception and scope is defined.Without departing from the design concept of the present utility model, ordinary people in the field couple
The all variations and modifications that the technical solution of the utility model is made, should fall within the protection scope of the present utility model, this reality
With novel claimed technology contents, it is all described in the claims.