CN201779079U - Water-injecting air extractor - Google Patents
Water-injecting air extractor Download PDFInfo
- Publication number
- CN201779079U CN201779079U CN2010202862984U CN201020286298U CN201779079U CN 201779079 U CN201779079 U CN 201779079U CN 2010202862984 U CN2010202862984 U CN 2010202862984U CN 201020286298 U CN201020286298 U CN 201020286298U CN 201779079 U CN201779079 U CN 201779079U
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- Prior art keywords
- water
- vacuum chamber
- chamber
- air ejector
- water jet
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Abstract
The utility model relates to a water-injecting air extractor, which comprises a vacuum chamber. A steam inlet chamber and a water inlet chamber are connected onto the vacuum chamber, a spray nozzle is arranged between the water inlet chamber and the vacuum chamber, the vacuum chamber is further connected with a plurality of chokes, and water outlet ends of the chokes are connected with a water tank. The water-injecting air extractor is characterized in that a spiral guide plate is arranged in each choke. The water-injecting air extractor has the advantages of compact arrangement, simple structure, convenience in maintenance, reliable work, capability of building a vacuum environment in a short time and the like. During usage, pressure energy of pressure water from a water-injecting pump is converted into kinetic energy through the spray nozzle, and high vacuum is formed in the vacuum chamber. Air and gas mixture in a condenser is mixed with water in the vacuum chamber when passing through the steam inlet chamber, the air and gas mixture and the water enter the chokes together, kinetic energy in the chokes is converted into pressure energy, and the air and gas mixture is discharged along with the water under the circumstance that pressure is slightly higher than the atmosphere. The spiral guide plates are arranged in the chokes, thereby being capable of effectively preventing vapor water from returning, and effectively guaranteeing operation of units.
Description
Technical field
The utility model relates to a kind of electric power subsidiary engine, particularly a kind of water jet air ejector.
Background technique
In the generator set start-up course, during ignition of the boiler steam turbine admission warming-up, to there be more steam to enter vapour condenser, if do not set up certain vacuum in the vapour condenser, carbonated drink enters vapour condenser will make vapour condenser form malleation, damage equipment, vapour condenser are set up vacuum steam turbine red switch essential condition especially.Vapour condenser and some low-voltage equipments (as condensate pump, drainage pump and part low-pressure heater etc.) are when normal operation, inside is in vacuum state, because pipeline and housing imprecision, air will bleed, thereby the destruction condenser vacuum jeopardizes the safety and economic operation of steam turbine.The partial pressure of air in vapour condenser increases simultaneously, cause the dissolved oxygen amount of water of condensation to increase, thereby aggravation is to heat power equipment and Corrosion of Pipeline.The existence of air also increases the heat transfer resistance in the vapour condenser, influences the cooling of recirculated cooling water to turbine discharge, increases plant consumption.Because of a little, when vapour condenser moves, must constantly extract air wherein out.
The main effect of pumped vacuum systems is: set up condenser vacuum at the unit starting initial stage; At the normal maintenance condenser vacuum in service of unit, guarantee the safety and economic operation of unit.
The vaccum-pumping equipment of vapour condenser of the prior art mainly contains water jet air ejector and vacuum pump.The main structure of water jet air ejector of the prior art is: it comprises vacuum chamber, is connected with air chamber and intake chamber on vacuum chamber; Be provided with nozzle between intake chamber and the vacuum chamber, also be connected with some trunnions on the vacuum chamber, the waterexit end of trunnion is connected with water tank; Trunnion is common pipeline, and water directly enters water tank by trunnion.Anti-flow phenomenon takes place when therefore using easily, can not guarantee the long-time normal operation of unit.
Summary of the invention
Technical problem to be solved in the utility model is at the deficiencies in the prior art, provides that a kind of structure is more reasonable, pumping efficiency is higher, no carbonated drink reflux events takes place, and effectively guarantees the long-time water jet air ejector that runs well of unit.
Technical problem to be solved in the utility model is to realize by following technological scheme.The utility model is a kind of water jet air ejector, comprises vacuum chamber, is connected with air chamber and intake chamber on vacuum chamber; Be provided with nozzle between intake chamber and the vacuum chamber, also be connected with some trunnions on the vacuum chamber, the waterexit end of trunnion is connected with water tank; Be characterized in: be provided with spiral helicine guide plate in the described trunnion.
In water jet air ejector of the present invention, further optimized technical scheme is:
1, the tube wall of described trunnion is provided with sound-absorbing material layer.Like this, can reduce the noise that the utility model sends in use.
2, it also is provided with the sound absorption cover that covers all trunnions, and described sound absorption cover is made by sound-absorbing material.Like this, can further reduce the noise that the utility model sends in use.
3, in intake chamber, be provided with loudspeaker jet dispense filter net.Like this, can make the water that enters in the vacuum chamber carry out uniform distribution, also can filter simultaneously and filter out impurities the normal operation of assurance unit.
4, described nozzle is for revolving jet nozzle.
5, in vacuum chamber, be provided with the steam flow distribution switchboard that is connected on the air chamber, evenly be provided with several vapor openings on the steam flow distribution switchboard.Carbonated drink in the vacuum chamber is mixed.
6, described trunnion is connected with vacuum chamber by horn-like collecting pipe.
7, on the rearward end of trunnion, also be connected with the leaving velocity air ejector.
8, between water tank and intake chamber, also be provided with water return pipeline.Like this, can carry out recycle and reuse to water.
9, on air chamber, be provided with automatic check valve.Like this, when water-jet pump breaks down, prevent that carbonated drink from blowing back into vapour condenser.
Compared with prior art, the utlity model has and arrange compact, simple in structure, easy to maintenance, reliable operation, pumping efficiency is higher, and can set up advantage such as required vacuum at short notice.During use, the press water by water-jet pump comes can be transformed into kinetic energy by nozzle with pressure, sprays from nozzle with certain speed, forms high vacuum in vacuum chamber.The row vacuum chamber mixed with water when the gas vapour mixture in the vapour condenser passed through air chamber, entered trunnion (diffuser pipe) together, in trunnion kinetic energy was transformed into the pressure energy, discharged with current under a little more than atmospheric situation.Owing in trunnion, be provided with the helical guide plate, can prevent the backflow generation of phenomenon of carbonated drink effectively, guaranteed the operation of unit effectively.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the structural representation of steam flow distribution switchboard.
Embodiment
Following with reference to accompanying drawing, further describe concrete technological scheme of the present utility model, so that those skilled in the art understands the present invention further, and do not constitute restriction to its right.
Embodiment 1.With reference to Fig. 1-2.A kind of water jet air ejector comprises vacuum chamber 7, is connected with air chamber 9 and intake chamber 1 on vacuum chamber 7; Be provided with nozzle 3 between intake chamber 1 and the vacuum chamber 7, also be connected with some trunnions 10 on the vacuum chamber 7, the waterexit end of trunnion 10 is connected with water tank; It is characterized in that: be provided with spiral helicine guide plate 5 in the described trunnion 10.
Embodiment 2.In embodiment's 1 described water jet air ejector: the tube wall of described trunnion 10 is provided with sound-absorbing material layer.
Embodiment 3.In embodiment 1 or the 2 described water jet air ejectors: it also is provided with the sound absorption cover 6 that covers all trunnions 10, and described sound absorption cover 6 is made by sound-absorbing material.
Embodiment 4.In any described water jet air ejector of embodiment 1-3: in intake chamber 1, be provided with loudspeaker jet dispense filter net 2.
Embodiment 5.In any described water jet air ejector of embodiment 1-4: described nozzle 3 is for revolving jet nozzle.
Embodiment 6.In any described water jet air ejector of embodiment 1-5: in vacuum chamber 7, be provided with the steam flow distribution switchboard 4 that is connected on the air chamber 9, evenly be provided with several vapor openings on the steam flow distribution switchboard 4.
Embodiment 7.In any described water jet air ejector of embodiment 1-6: described trunnion 10 is connected with vacuum chamber 7 by horn-like collecting pipe.
Embodiment 8.In any described water jet air ejector of embodiment 1-7: on the rearward end of trunnion 10, also be connected with leaving velocity air ejector 8.
Embodiment 9.In any described water jet air ejector of embodiment 1-8: between water tank and intake chamber 1, also be provided with water return pipeline.
Embodiment 10.In any described water jet air ejector of embodiment 1-9: on air chamber 9, be provided with automatic check valve.
Claims (10)
1. a water jet air ejector comprises vacuum chamber, is connected with air chamber and intake chamber on vacuum chamber; Be provided with nozzle between intake chamber and the vacuum chamber, also be connected with some trunnions on the vacuum chamber, the waterexit end of trunnion is connected with water tank; It is characterized in that: be provided with spiral helicine guide plate in the described trunnion.
2. water jet air ejector according to claim 1 is characterized in that: the tube wall of described trunnion is provided with sound-absorbing material layer.
3. water jet air ejector according to claim 1 is characterized in that: it also is provided with the sound absorption cover that covers all trunnions, and described sound absorption cover is made by sound-absorbing material.
4. water jet air ejector according to claim 1 is characterized in that: be provided with loudspeaker jet dispense filter net in intake chamber.
5. water jet air ejector according to claim 1 is characterized in that: described nozzle is for revolving jet nozzle.
6. water jet air ejector according to claim 1 is characterized in that: be provided with the steam flow distribution switchboard that is connected on the air chamber in vacuum chamber, evenly be provided with several vapor openings on the steam flow distribution switchboard.
7. water jet air ejector according to claim 1 is characterized in that: described trunnion is connected with vacuum chamber by horn-like collecting pipe.
8. water jet air ejector according to claim 1 is characterized in that: also be connected with the leaving velocity air ejector on the rearward end of trunnion.
9. water jet air ejector according to claim 1 is characterized in that: also be provided with water return pipeline between water tank and intake chamber.
10. water jet air ejector according to claim 1 is characterized in that: be provided with automatic check valve on air chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202862984U CN201779079U (en) | 2010-08-10 | 2010-08-10 | Water-injecting air extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202862984U CN201779079U (en) | 2010-08-10 | 2010-08-10 | Water-injecting air extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779079U true CN201779079U (en) | 2011-03-30 |
Family
ID=43792291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202862984U Expired - Lifetime CN201779079U (en) | 2010-08-10 | 2010-08-10 | Water-injecting air extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779079U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148026A (en) * | 2011-12-06 | 2013-06-12 | 洛阳蓝海实业有限公司 | Two-stage multi-nozzle vacuum-pumping device |
| CN104196769A (en) * | 2014-08-18 | 2014-12-10 | 连云港久盛电力辅机有限公司 | Environment-friendly multi-channel water jet air ejector |
| CN104406419A (en) * | 2014-11-28 | 2015-03-11 | 连云港正航电力节能技术有限公司 | Integration exhaust steam and energy receiving device |
| CN104747507A (en) * | 2015-01-12 | 2015-07-01 | 启东市海信机械有限公司 | Water jetting air pumping device |
| CN105545378A (en) * | 2016-01-14 | 2016-05-04 | 大唐(北京)能源管理有限公司 | Steam turbine protecting system and method during starting of power plant |
-
2010
- 2010-08-10 CN CN2010202862984U patent/CN201779079U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148026A (en) * | 2011-12-06 | 2013-06-12 | 洛阳蓝海实业有限公司 | Two-stage multi-nozzle vacuum-pumping device |
| CN104196769A (en) * | 2014-08-18 | 2014-12-10 | 连云港久盛电力辅机有限公司 | Environment-friendly multi-channel water jet air ejector |
| CN104196769B (en) * | 2014-08-18 | 2017-11-07 | 连云港久盛电力辅机有限公司 | A kind of environment-friendly type multi-path water jet air extractor |
| CN104406419A (en) * | 2014-11-28 | 2015-03-11 | 连云港正航电力节能技术有限公司 | Integration exhaust steam and energy receiving device |
| CN104747507A (en) * | 2015-01-12 | 2015-07-01 | 启东市海信机械有限公司 | Water jetting air pumping device |
| CN104747507B (en) * | 2015-01-12 | 2017-02-22 | 启东市海信机械有限公司 | Water jetting air pumping device |
| CN105545378A (en) * | 2016-01-14 | 2016-05-04 | 大唐(北京)能源管理有限公司 | Steam turbine protecting system and method during starting of power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIANYUNGANG ZHENGHANG DIANLI JIENENG JISHU CO., LT Free format text: FORMER OWNER: HE NAICHANG Effective date: 20130523 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130523 Address after: 222000 Jiangsu city of Lianyungang province Haizhou New District No. 15 new road Patentee after: Lianyungang Zhenghang Electric Power Energy-Saving Technology Co., Ltd. Address before: 222000 Jiangsu province Lianyungang city Haizhou District No. 15 new road Xinba zhenghang company Patentee before: He Naichang |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |