CN206159828U - A water spray nebulizer construct for temperature -reducing and pressure -reducing system - Google Patents
A water spray nebulizer construct for temperature -reducing and pressure -reducing system Download PDFInfo
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- CN206159828U CN206159828U CN201621117624.2U CN201621117624U CN206159828U CN 206159828 U CN206159828 U CN 206159828U CN 201621117624 U CN201621117624 U CN 201621117624U CN 206159828 U CN206159828 U CN 206159828U
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- water
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- temperature
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Abstract
The utility model discloses a water spray nebulizer construct for temperature -reducing and pressure -reducing system, this a water spray nebulizer construct for temperature -reducing and pressure -reducing system include temperature -reducing and pressure -reducing system's conveyer pipe characterized by: water spray nebulizer construct including set up passing the conveyer pipe subtract to intraductal transport the warm shower nozzle of subtracting of warm water with connect be used for that the transportation subtracts warm water on subtracting warm shower nozzle subtract the warm water pipeline, subtracting the warm water pipeline and setting up respectively at conveyer pipe both sides and top for a plurality of, when steam passed shower nozzle place region, the steam stream tube that subtracts warm water and transport assaulted the turbulent flow impact that forms high strength to guarantee steam and the fast enough fast intensive mixing of hydroenergy.
Description
Technical field
This utility model is related to temperature reducing and pressure reducing system field, more particularly to a kind of water spraying atomization for temperature reducing and pressure reducing system
Mechanism.
Background technology
Modern power engineering and heat energy technology requirement high temperature-high superheated steam of high-pressure boiler generation degree of superheat, but not
All it is different with the temperature and air pressure of the steam needed for technological process apparatus, and in order to ensure that high saturation is conveyed, boiler
The temperature and air pressure of generation often far surpass some position equipments needed for, and if directly saturated vapor is lowered the temperature, overheated steaming
Vapour can reduce efficiency due to relatively low heat transfer coefficient, if the dry saturated steam of high pressure is decompressed to low pressure, can go out in lower exit
Flash evaporation is now crossed, easily causes cavitation to damage in pipeline and valve, therefore need the steam to high pressure superheater under many circumstances
Carry out desuperheat and decompression simultaneously.
General temperature reducing and pressure reducing system can all include air inlet, air relief valve, delivery pipe, Desuperheating device, delivery pipe and air relief valve
Connection, Desuperheating device is arranged in delivery pipe.
Utility model content
The purpose of this utility model is to provide a kind of water spraying atomization mechanism for temperature reducing and pressure reducing system, reached steam and
Water energy is enough quickly sufficiently mixed effect.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of water spraying atomization mechanism for temperature reducing and pressure reducing system, including the delivery pipe of temperature reducing and pressure reducing system, is characterized in that：
The water spraying atomization mechanism includes that being provided through delivery pipe conveys the desuperheat shower nozzle of desuperheating water into pipe and be connected to desuperheat spray
It is used to transport the desuperheat waterpipe of desuperheating water on head, the desuperheat waterpipe is separately positioned on delivery pipe both sides and top for multiple
Portion.
Using said structure, water spraying atomization mechanism using high-pressure feed water is injected directly into go in desuperheat fluid by the way of with it is high
Warm steam together, reaches desuperheat design temperature；And desuperheat waterpipe is with top and the formal distribution of both sides, machine is formed
Tool stream heart type structure, when desuperheating water enters the region corresponding to shower nozzle, forms high-strength with the steam a fluid stream vertical impact of conveying
The turbulent flow impact of degree, so as to ensure that steam and water energy are enough quickly sufficiently mixed.
More preferably：The desuperheat waterpipe of the delivery pipe both sides is all connected in the first control pipeline, described defeated
The desuperheat waterpipe at the top of pipe is sent to be connected in the second control pipeline, the axis of the shower nozzle of the delivery pipe both sides is in same level
On face, the internal diameter of second control pipeline is more than the internal diameter of the first control pipeline.
Using said structure, the steam in delivery pipe is leaned on when transmission because the effect major part of gravity can be in
Under part, it is, the amount of heat of steam stream be accumulated in conveying tube cavity lower section, that is to say, that from both sides spray subtract
Warm water is more than top, could rapidly absorb substantial amounts of accumulation heat；By the same control pipe of the desuperheating water of delivery pipe both sides
Connection, and shower nozzle is in same level, and the hydraulic pressure that the desuperheating water that both sides spray can be caused to spray is identical, such two side spray
The end of the water for going out just can occur mutually to clash into so as to produce strong turbulent flow impact, promote desuperheating water and steam fully to mix
Close.
More preferably：The desuperheat waterpipe at the top is in vertical distribution with the desuperheat waterpipe of both sides, and both sides
Pipeline connection desuperheat shower nozzle be located at delivery pipe diametrical position.
Using said structure, general steam when conveying, bottom gaseous mixture can be higher than the Degree of Liquefaction on top
A bit, the desuperheating water at top sprays backward lower impact, and upper steam is formed with along rushing at downstream and downward move rail
Mark, just at middle part, the desuperheating water for so spraying just has a level track obliquely for the injection desuperheating water of both sides, and while
The low steam of Degree of Liquefaction has a movement tendency upwards, simultaneously because three being pointing directly at for shower nozzle are centers, and steams
The flow direction of vapour is perpendicular to the plane at shower nozzle place, and such setting produces very strong eddy flow, and as three motions finally exist
Same point is clashed into, and very strong turbulent flow impact can be being formed apart from the certain downstream position of shower nozzle, so as to steam and desuperheating water is complete
Full mixing.
More preferably：Desuperheating water regulating valve is provided with first control pipe and the second control pipe, it is described to subtract
The second actuator is provided with warm water regulating valve.
Using said structure, Desuperheating water regulating valve can be with the flow of real-time regulation desuperheating water, it is ensured that the supply of desuperheat is fitted
Preferably, the second actuator can by host computer feedback regulation or direct regulation and control, so as to it is quick, effective, accurately control subtract
The aperture of warm water regulating valve so that Desuperheating water regulating valve can receive PC control.
More preferably：The downstream of the Desuperheating water regulating valve is provided with check-valves.
Using said structure, check-valves can be prevented in high-pressure and high-temperature steam due to the excessive blocking water spraying atomization mechanism of pressure
Shower nozzle and cause desuperheating water to flow out the situation of even backflow.
More preferably：The upstream of the Desuperheating water regulating valve is provided with manual throttle valve.
Using said structure, the amount of the desuperheating water that manual throttle valve can initially be exported by mechanical pressure control,
The regulation threshold range for alloing Desuperheating water regulating valve reduces so that Desuperheating water regulating valve control is more flexibly accurate, and
And when error or failure occurs in Desuperheating water regulating valve, first manual structure stop valve can manually be closed with manual compensation or directly
Close.
More preferably：The downstream of the check-valves is provided with hand stop valve
Using said structure, hand stop valve is arranged on the downstream of check-valves, second when check-valves break down
Hand-operated valve can directly close and avoid desuperheating water even opposing steam flow and the supply system of desuperheating water is damaged, and in handss
When dynamic choke valve and hand stop valve are simultaneously closed off, it is possible to overhaul the failure problems of check-valves and Desuperheating water regulating valve.
In sum, this utility model has the advantages that：
Water spraying atomization mechanism is set using the mechanical rotating flow heart by the shower nozzle of desuperheat waterpipe at delivery pipe both sides and top
Meter, when steam passes through shower nozzle region, desuperheating water forms the turbulent flow impact of high intensity with the steam beam impacts of conveying, from
And ensure that steam and water energy are enough quickly sufficiently mixed.
Description of the drawings
Fig. 1 is the overall structure diagram of the temperature reducing and pressure reducing system of the present embodiment；
Fig. 2 is the overall structure figure of the water spraying atomization device of the present embodiment.
In figure, 1, air relief valve；2nd, the first actuator；3rd, water spraying atomization mechanism；4th, relief valve；5th, pressure gauge；6th, once
Door；7th, bimetallic thermometer；8th, pressure transmitter；9th, warming resistance；10th, delivery pipe；11st, Desuperheating water regulating valve；12nd, second hold
Row mechanism；13rd, check-valves；14th, desuperheat waterpipe；15th, restricting orifice；16th, reduce pressure silencer mechanism；17th, transition region；18th, air inlet
Joint；19th, manual throttle valve；20th, hand stop valve；21st, desuperheat shower nozzle；22nd, the first control pipeline；23rd, the second control pipeline；
30th, pressure detection mechanism；40th, temperature testing organization.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model
Field technique personnel can make as needed the modification without creative contribution after this specification is read to the present embodiment, but
As long as all being protected by Patent Law in protection domain of the present utility model.
A kind of temperature reducing and pressure reducing system, as shown in figure 1, steam is entered from inlet suction port 18, then subtracts via air relief valve 1 successively
Pressure, acted on cooling by water spraying atomization device in transition region 17, the blood pressure lowering again of restricting orifice 15 in delivery pipe 10, finally by
Delivery pipe 10 is delivered to the equipment for needing steam.
Air relief valve 1 controls to adjust aperture by the first actuator 2, and general first actuator 2 is direct by host computer
Control or feedback control.
The outlet of air relief valve 1 is directly connected with delivery pipe 10, the position that delivery pipe 10 is connected with air relief valve 1 be provided with for
The transition region 17 of buffering, is provided with desuperheat waterpipe 14 on the inwall of transition region 17, with reference to Fig. 2, desuperheat waterpipe 14 is using more
The individual mechanical flow core type design for being separately positioned on the both sides of delivery pipe 10 and top, enter in desuperheating water relief area inner chamber when,
Desuperheating water forms the turbulent flow effect of high intensity with the steam beam impacts of conveying, it is ensured that steam and water energy are enough quickly sufficiently mixed,
And water spraying atomization mechanism 3 reduces the pressure drop of air relief valve 1 while fog mixing and atomization cooling are carried out to valve port steam
The temperature in region, so as to reduce flash distillation and the Cavitation Problems that steam is caused because of violent blood pressure lowering, while to air relief valve 1 and its
Pipeline afterwards serves the effect of protection.
As shown in figure 1, the end protrusion in relief area is provided with decompression silencer mechanism 16, it weakens flash distillation and cavitation is existing
As and the noise that brought of most of reducing, it is ensured that the good working environment of operator, and cause the staff can be with
Easier some problems that sound can be listened to recognize such as some gas leakage that find.
The downstream of decompression silencing means is provided with restricting orifice 15, the effect of restricting orifice 15 is similar to air relief valve 1,
There are certain reduced pressure capabilities, there is necking on choke block, when liquid is through necking, a fluid stream can attenuate contraction, the minimum transverse section of a fluid stream
The downstream of actual necking, referred to as vena contracta are occurred in, at vena contracta, flow velocity is maximum, and the increase of flow velocity is adjoint
Pressure at vena contracta to substantially reduce；Region after vena contracta, speed declines, pressure increases, but due to compared with large inner
Turbulent flow and energy loss, the pressure in downstream will not be completely recovered to the pressure of upstream.
The downstream of restricting orifice 15 typically arranges more than one relief valve 4, generally uses the effect of spring loaded safety valve 4
Preferably, relief valve 4 can ensure the steam in delivery pipe 10 in the range of nominal pressure.
The downstream of relief valve 4 is typically provided with pressure gauge 5, bimetallic thermometer 7, pressure transmitter 8, warming resistance 9；Pressure
Power table 5 and bimetallic thermometer 7 directly can read data from table, pressure transmitter 8 and warming resistance 9 can by temperature and
Air pressure signal is converted into the signal of telecommunication, so as to feed back to host computer.
As shown in figure 1, on the transport pipeline of desuperheating water, being disposed with manual throttle valve 19, subtracting from the upstream of desuperheating water
Warm water regulating valve 11, check-valves 13, hand stop valve 20.
The second actuator 12 is provided with Desuperheating water regulating valve 11, the second actuator 12 is general by straight by host computer
Control or feedback control are connect, the aperture of Desuperheating water regulating valve 11 is adjusted, the effect of machine control attemperation water flow is reached.
Check-valves 13 can prevent from being led due to the shower nozzle of the excessive blocking water spraying atomization mechanism 3 of pressure in high-pressure and high-temperature steam
Desuperheating water is caused to flow out the situation of even backflow, so as to ensure desuperheating water flowing unipolarity.
Manual throttle valve 19 can be by the amount of the mechanical desuperheating water for forcing control initially to export so that desuperheating water is adjusted
The regulation threshold range of section valve 11 can reduce so that Desuperheating water regulating valve 11 is controlled more flexibly precisely, and in desuperheat
When error or failure occurs in water regulating valve 11, first manual structure stop valve can be with manual compensation or direct manual-lock.
Hand stop valve 20 is arranged on the downstream of check-valves 13, and the second hand-operated valve can when check-valves 13 break down
The supply system of desuperheating water is damaged so that direct closing avoids desuperheating water even opposing steam flow, and in manual throttle valve
19 and hand stop valve 20 when simultaneously close off, it is possible to overhaul the failure problems of check-valves 13 and Desuperheating water regulating valve 11.
With reference to Fig. 2, the desuperheat waterpipe 14 of the both sides of delivery pipe 10 is all connected in the first control pipeline 22, and delivery pipe 10 is pushed up
The desuperheat waterpipe 14 in portion is connected in the second control pipeline 23, and the axis of the shower nozzle of the both sides of delivery pipe 10 is in same level
On, the internal diameter of the second control pipeline 23 is more than the internal diameter of the first control pipeline 22, and the shower nozzle at top and the shower nozzle of both sides are in hang down
Straight distribution.
Steam in delivery pipe 10 acts on most of part that can be on the lower when transmission due to gravity,
Be exactly that the amount of heat of steam stream is accumulated in the lower section of the inner chamber of delivery pipe 10, that is to say, that from both sides spray desuperheating water than
Top it is many, could rapidly absorb substantial amounts of accumulation heat；The desuperheating water of the both sides of delivery pipe 10 is connected with same control pipe, and
And shower nozzle is in same level, the hydraulic pressure that the desuperheating water that both sides spray can be caused to spray is identical, the water that such both sides spray
End just can occur mutually to clash into so as to produce strong turbulent flow impact, promote desuperheating water and steam to be sufficiently mixed.
Claims (7)
1. a kind of delivery pipe (10) of water spraying atomization mechanism for temperature reducing and pressure reducing system, including temperature reducing and pressure reducing system, its feature
It is：The water spraying atomization mechanism (3) conveys the desuperheat shower nozzle (21) of desuperheating water including delivery pipe (10) is provided through into pipe
It is used for the desuperheat waterpipe (14) for transporting desuperheating water with being connected on desuperheat shower nozzle (21), the desuperheat waterpipe (14) is multiple
It is separately positioned on the both sides and top of delivery pipe (10).
2. the water spraying atomization mechanism for temperature reducing and pressure reducing system according to claim 1, is characterized in that：The water spraying atomization
Mechanism (3) includes the first control pipeline (22) and the second control pipeline (23), the desuperheat waterpipe of delivery pipe (10) both sides
(14) it is all connected in the first control pipeline (22), the desuperheat waterpipe (14) at the top of the delivery pipe (10) is connected to the second control
In tubing giving sufficient strength (23), the axis of the shower nozzle of delivery pipe (10) both sides in same level, second control pipeline
(23) internal diameter of the internal diameter more than the first control pipeline (22).
3. the water spraying atomization mechanism for temperature reducing and pressure reducing system according to claim 2, is characterized in that：The top subtracts
Warm water pipe (14) is in vertical distribution with the desuperheat waterpipe (14) of both sides.
4. the water spraying atomization mechanism for temperature reducing and pressure reducing system according to Claims 2 or 3, is characterized in that：Described first
Control pipeline（22）With the second control pipeline（23）On be provided with Desuperheating water regulating valve (11), the Desuperheating water regulating valve (11)
On be provided with the second actuator (12).
5. the water spraying atomization mechanism for temperature reducing and pressure reducing system according to claim 4, is characterized in that：The desuperheating water is adjusted
The downstream of section valve (11) is provided with check-valves (13).
6. the water spraying atomization mechanism for temperature reducing and pressure reducing system according to claim 5, is characterized in that：The desuperheating water is adjusted
The upstream of section valve (11) is provided with manual throttle valve (19).
7. the water spraying atomization mechanism for temperature reducing and pressure reducing system according to claim 6, is characterized in that：The check-valves
(13) downstream is provided with hand stop valve (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621117624.2U CN206159828U (en) | 2016-10-13 | 2016-10-13 | A water spray nebulizer construct for temperature -reducing and pressure -reducing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621117624.2U CN206159828U (en) | 2016-10-13 | 2016-10-13 | A water spray nebulizer construct for temperature -reducing and pressure -reducing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206159828U true CN206159828U (en) | 2017-05-10 |
Family
ID=58652863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621117624.2U Expired - Fee Related CN206159828U (en) | 2016-10-13 | 2016-10-13 | A water spray nebulizer construct for temperature -reducing and pressure -reducing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206159828U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842844A (en) * | 2017-11-27 | 2018-03-27 | 华电电力科学研究院 | A kind of efficient temperature reducing system of superheated steam and intelligent control method |
| CN111828839A (en) * | 2019-04-19 | 2020-10-27 | 上海恒劲动力科技有限公司 | Gas supply system with temperature control and humidification device for supplying compressed gas to pressure space |
| CN112432157A (en) * | 2020-11-18 | 2021-03-02 | 哈尔滨锅炉厂有限责任公司 | Method for monitoring vaporization degree of desuperheating water |
| CN113404920A (en) * | 2021-06-09 | 2021-09-17 | 常州华伦热电有限公司 | Accurate pressure regulating pipeline device based on supply of desuperheating water |
-
2016
- 2016-10-13 CN CN201621117624.2U patent/CN206159828U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842844A (en) * | 2017-11-27 | 2018-03-27 | 华电电力科学研究院 | A kind of efficient temperature reducing system of superheated steam and intelligent control method |
| CN107842844B (en) * | 2017-11-27 | 2024-01-05 | 华电电力科学研究院有限公司 | Superheated steam efficient temperature reduction system and intelligent control method |
| CN111828839A (en) * | 2019-04-19 | 2020-10-27 | 上海恒劲动力科技有限公司 | Gas supply system with temperature control and humidification device for supplying compressed gas to pressure space |
| CN112432157A (en) * | 2020-11-18 | 2021-03-02 | 哈尔滨锅炉厂有限责任公司 | Method for monitoring vaporization degree of desuperheating water |
| CN112432157B (en) * | 2020-11-18 | 2022-12-06 | 哈尔滨锅炉厂有限责任公司 | Method for monitoring vaporization degree of desuperheating water |
| CN113404920A (en) * | 2021-06-09 | 2021-09-17 | 常州华伦热电有限公司 | Accurate pressure regulating pipeline device based on supply of desuperheating water |
| CN113404920B (en) * | 2021-06-09 | 2023-07-07 | 常州华伦热电有限公司 | Accurate pressure regulating pipeline device based on temperature reduction water supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20191013 |