CN202253588U - Desuperheater with adjustable spiral nozzles - Google Patents
Desuperheater with adjustable spiral nozzles Download PDFInfo
- Publication number
- CN202253588U CN202253588U CN2011203989510U CN201120398951U CN202253588U CN 202253588 U CN202253588 U CN 202253588U CN 2011203989510 U CN2011203989510 U CN 2011203989510U CN 201120398951 U CN201120398951 U CN 201120398951U CN 202253588 U CN202253588 U CN 202253588U
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- nozzles
- desuperheater
- flow
- nozzle
- piston body
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Abstract
Provided is a desuperheater with adjustable spiral nozzles. An electric actuation mechanism, a split nut, a valve rod, a multi-stage throttle element, a pin shaft and a piston rod are sequentially connected to form a movable part on a piston body. A feed water drainage hole, a spiral body and nozzles are fixed on the piston body in a stroke range. The flow of desuperheater water can be automatically adjusted by change of temperature signals. The feed water drainage hole is arranged on the spiral body according to characteristic of the flow, and the nozzles can be arranged into one row to two rows according to water spray amount. The desuperheater with adjustable spiral nozzles can accurately control temperature of steam and simultaneously facilitates flow regulation in high pressure differential. The atomizing nozzles adopt eddy flow sheet elements, thereby being simple in structure.
Description
[technical field]
The utility model relates to a kind of water injector of regulating the desuperheating water flow, is specifically related to a kind of being applied to through in steam, adding the attemperator of water management vapor (steam) temperature, the water injector of injection flow rate and atomizing effect in the time of especially controlling the variation of flow vast scale.
[background technology]
At present, known desuperheating water water injector structure is made up of flute shape nozzle, Venturi tube, anemostat.Desuperheating water is directly sprayed into pipeline contact, behind the water contact steam, absorb the steam heat vaporization, thereby reduce vapor (steam) temperature with steam.But under a lot of situation, the traffic load of attemperator can produce bigger variation; General nozzle can only reach 1: 5 adjustable range, and can not atomize fully, causes attemperator pipeline band water; Cause the pipe stress distortion easily, destruction equipment uses, and simultaneously follow-up gas utilization unit is impacted.
[utility model content]
The deficiency of little desuperheating water atomization badness of for the adjustable range that overcomes existing attemperator, the utility model provides a kind of adjustable spiral nozzle attemperator, and this attemperator can adapt to traffic load 1: 20, and can realize the atomizing of spraying water.
The technical scheme that the utility model adopted is: a kind of adjustable spiral nozzle attemperator; Its electric operator, clasp nut, valve rod, multi-level throttle element, bearing pin, piston rod connect to form movable part successively at piston body; Feedwater round, conveyor screw, nozzle are fixed on the piston body in travel range; The flow of desuperheating water is regulated in the variation of temperature signal automatically, and the feedwater round is arranged on the conveyor screw by discharge characteristic, and what can divide 1～2 row to the quantity of nozzle according to injection flow rate.
After electric operator, clasp nut, valve rod, piston in combination connect, be placed in the nozzle body, when piston rod moves down; Desuperheating water at first gets into the control that the multi-level throttle element is realized pressure, and the feedwater round that is positioned at simultaneously on the piston body is opened, and the desuperheating water flow changes along with the variation of valve rod aperture; Realize the accurate control of flow; Get into conveyor screw according to certain pressure reduction and flow, spirochetal cyclone structure can make the motion of desuperheating water rotating centrifugal reach at a high speed, obtains trickle water droplets; And spray into mixing duct through nozzle, avoided the generation of drip phenomenon effectively;
(1) cyclone structure is its Design Mechanism, and effective atomizing area that the unique cyclone structure has increased desuperheating water greatly mixes rapidly with steam, controls vapor (steam) temperature effectively; Regulating ratio 1: 20
(2) atomizing effect is good, and desuperheating water produces conical hollow through spiral nozzle, and spray area circularizes, and spray angle does
51 °～144 °, under the situation of bearing large-scale impact and pressure load, also can produce the drop size for the spraying that 0.1mm is evenly distributed, improved heat exchange area greatly, reduced nebulisation time and sections of atomization;
(3) spiral nozzle is a setting type, by certain discharge coefficient design, manufacturing;
(4) spiral nozzle does not have actuated element, no jam phenomenon, and cyclone structure has big and unobstructed circulation road, has eliminated the phenomenon of nozzle blockage.
The utility model beneficial effect: this device can be realized High Pressure Difference downward modulation amount of restriction easily when controlling vapor (steam) temperature accurately, atomizer only adopts the spinning disk element, and is simple in structure.
For making characteristic and the technology contents of further understanding the utility model, see the utility model accompanying drawing and embodiment for details, yet appended graphic only for reference and explanation usefulness is not to be that the utility model is limited.
[description of drawings]
Fig. 1 is the vertical section structural map of the utility model embodiment.
Fig. 2 is the I--I cutaway view of Fig. 1.
1. electric operators among the figure, 2. clasp nut, 3. valve rod, 4. multi-level throttle element, 5. bearing pin, 6. mixing duct, 7. connector, 8. piston body, 9. piston rod, 10. conveyor screw, 11. nozzles, 12. feedwater rounds.
[specific embodiment]
Below in conjunction with accompanying drawing and embodiment the utility model is further specified:
A kind of adjustable spiral nozzle attemperator its by electric operator 1, clasp nut 2, valve rod 3, multi-level throttle element 4, bearing pin 5, mixing duct 6, connector 7, piston body 8, piston rod 9, conveyor screw 10, nozzle 11, feedwater round 12 compositions.
Electric operator 1, clasp nut 2, valve rod 3, multi-level throttle element 4, bearing pin 5, piston rod 9 connect to form movable part successively at piston body 8, in move up and down; Feedwater round 12, conveyor screw 10, nozzle 11 is fixed in travel range on the piston body 8.Automatically regulate the flow of desuperheating water through the variation of temperature signal, feedwater round 12 is arranged on the conveyor screw 10 by discharge characteristic, nozzle 11 quantity what can divide 1～2 row according to injection flow rate.
This device can be realized High Pressure Difference downward modulation amount of restriction easily when controlling vapor (steam) temperature accurately, atomizer only adopts the spinning disk element, and is simple in structure.
Yet the preferable feasible embodiment of above-mentioned only the utility model, non-so limitation the utility model protection domain is done various distortion or is applied mechanically all within this technical scheme protection domain according to the foregoing description.
Claims (1)
1. adjustable spiral nozzle attemperator; It is characterized in that; Electric operator, clasp nut, valve rod, multi-level throttle element, bearing pin, piston rod connect to form movable part successively at piston body, and feedwater round, conveyor screw, nozzle are fixed in travel range on the piston body, and the flow of desuperheating water is regulated in the variation of temperature signal automatically; The feedwater round is arranged on the conveyor screw by discharge characteristic, and what can divide 1～2 row to the quantity of nozzle according to injection flow rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203989510U CN202253588U (en) | 2011-10-08 | 2011-10-08 | Desuperheater with adjustable spiral nozzles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203989510U CN202253588U (en) | 2011-10-08 | 2011-10-08 | Desuperheater with adjustable spiral nozzles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202253588U true CN202253588U (en) | 2012-05-30 |
Family
ID=46114824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203989510U Expired - Lifetime CN202253588U (en) | 2011-10-08 | 2011-10-08 | Desuperheater with adjustable spiral nozzles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202253588U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388235A (en) * | 2017-09-13 | 2017-11-24 | 江苏火电电力设备制造有限公司 | A kind of overall water spray control Vaporized temperature-reducing device |
| CN111672644A (en) * | 2020-06-08 | 2020-09-18 | 青岛畅隆电力设备有限公司 | Buffer type nozzle capable of adapting to various flow rates and adjusting method thereof |
-
2011
- 2011-10-08 CN CN2011203989510U patent/CN202253588U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388235A (en) * | 2017-09-13 | 2017-11-24 | 江苏火电电力设备制造有限公司 | A kind of overall water spray control Vaporized temperature-reducing device |
| CN111672644A (en) * | 2020-06-08 | 2020-09-18 | 青岛畅隆电力设备有限公司 | Buffer type nozzle capable of adapting to various flow rates and adjusting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |