CN202532912U - Steam condenser vacuum maintaining system for thermal power plant - Google Patents
Steam condenser vacuum maintaining system for thermal power plant Download PDFInfo
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- CN202532912U CN202532912U CN2012200640292U CN201220064029U CN202532912U CN 202532912 U CN202532912 U CN 202532912U CN 2012200640292 U CN2012200640292 U CN 2012200640292U CN 201220064029 U CN201220064029 U CN 201220064029U CN 202532912 U CN202532912 U CN 202532912U
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- Prior art keywords
- vacuum
- air inlet
- condenser
- vavuum pump
- power plant
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 238000005086 pumping Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 230000000740 bleeding effect Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a steam condenser vacuum maintaining system for a thermal power plant. The steam condenser vacuum maintaining system comprises a steam condenser and an evacuation system component, wherein the steam condenser is connected with the evacuation system component. The steam condenser vacuum maintaining system further comprises a vacuum maintaining system, wherein the vacuum maintaining system comprises a gas inlet pipe, a gas inlet manually-operated valve, a vacuum pump and a gas outlet pipe; the gas inlet pipe, the gas inlet manually-operated valve, the vacuum pump and the gas outlet pipe are connected in sequence; the gas inlet end of the gas inlet pipe is connected with the gas outlet end of the steam condenser; and the gas outlet end of the gas outlet pipe is connected with the gas outlet end of the evacuation system component. The steam condenser vacuum maintaining system essentially consists of the high efficiency vacuum pump and related pipes and valves and is connected in parallel with the conventional vacuum pump system, so as to achieve a purpose of energy conservation.
Description
Technical field
The utility model relates to a kind of thermal power plant condenser vacuum and keeps system; The system of the utility model adopts energy-efficient vavuum pump; Can substitute conventional vaccum-pumping equipment, normally move at unit and keep thermal power plant's condenser vacuum under the vacuum stable case, to reach energy-saving and cost-reducing effect.
Background technology
Two more powerful vavuum pumps of the general installing of the conventional pumped vacuum systems in thermal power plant; They vacuumize condenser and each pipe-line system that links when unit starting; Drop into stable operation until generating set; Still keep the vavuum pump running status to keep the vacuum of condenser, just out of service after generating set is stopped transport fully.The function of conventional vavuum pump has two: the one, set up vacuum at the unit starting initial stage; The 2nd, normally in service at unit, the incondensable gas of the vacuum system of will bleeding is constantly extracted vacuum system out, to keep the high vacuum state of system.
If respectively with two power consumptions are different but its end vacuum performance is identical and the speed of exhaust all vacuumizes same system greater than the vavuum pump of vacuum system leak rate; As do not consider the time of bleeding; Finally, these two vavuum pumps can both be extracted into system identical vacuum and keep high vacuum state.Therefore, using efficiently, vavuum pump can cut down the consumption of energy.
But conventional vavuum pump is bled to load according to maximum and is designed, and the separate unit capacity of steam turbine producer configuration vapor extractor (vavuum pump) is design considerations with following factor: (1) allows air leakage; (2) exhaust steam pressure of setting; (3) vapour, the gas mixture degree of supercooling of entering air ejector, " permission air leakage " is a first-selected index in these factors; (4) satisfying predetermined pumpdown time in power station, is to open the main foundation that the machine stage selects vavuum pump, and the pumpdown time is generally within 30 minutes.With the 600MW unit is example, and it allows air leakage is 117.5 kilograms/hour, and generally speaking gas leakage only has 23 kilograms/hour in the actual motion; Therefore; Normally in service at unit, with the gas leakage of the vavuum pump extraction very small amount that designs, its power consumption obviously is higher.
Conventional vavuum pump is bled to load according to maximum and is designed, and therefore, its power consumption is higher; But, in the actual production, when unit under normal operating condition; Bleed the air capacity of condenser much smaller than the design rate of air sucked in required of vavuum pump; Therefore, this moment can be with a small-power but end vacuum performance and suction performance can satisfy the vavuum pump of system held high vacuum state requirement substitutes former design highly energy-consuming vavuum pump, to reach purpose of energy saving.
In service normally, the vacuum of condenser is the steam formation of condensing, rather than is pumped into by vavuum pump, and this moment, the effect of vavuum pump only was outside a small amount of incondensable gas extraction system of the vacuum system of bleeding.We find in practice, and the current curve of vavuum pump operation is the type that draws a bow in initial start stage, promptly is; Do not setting up vacuum or vacuum values when low, the running current of vavuum pump raises with vacuum values and increases, when vacuum reaches certain vacuum values; The vavuum pump electric current reaches maximum, subsequently along with the raising of vacuum, and the minimizing of incondensable gas amount in the condenser; The vavuum pump electric current reduces gradually, and when condenser vacuum was stablized, the vavuum pump current stabilization was at a less numerical value; When doing the steam turbine vacuum leak test, do not stop vavuum pump, only close the vavuum pump inlet shutoff valve, the electric current that can find vavuum pump changes little, more than explanation, the power consumption of vavuum pump is most of to consume in the hydraulic resistance of water ring pump.So unit is in service normally, have only a spot of noncondensing air vacuum system of having bled, high-power vavuum pump is but used in less load, causes very big waste of energy.
Therefore, normally move at unit, under the vacuum stable case, an available efficient height, vavuum pump low in energy consumption substitute conventional big power consumption vavuum pump operation, reach purpose of energy saving.
Moreover, at present, the equipment that domestic thermal power plant condenser vaccum-pumping equipment widespread usage water jet air ejector, stream-jet ejector and atmosphere-high energy consumptions such as water ring vacuum pump group are inefficient, energy consumption efficiency is comparatively low.
The utility model content
Use above-mentioned thought to design to newly-built unit, or to carrying out the system reform at the fortune unit, on the condenser pumped vacuum systems basis in conventional thermal power plant, low-power consumption of parallel connection on the female pipe of air inlet, high efficiency vavuum pump.
The utility model content is except that system; The application of the vavuum pump that also comprises a kind of high efficiency low energy consumption---Roots-water ring vacuum pump group vacuum system in the thermal power plant; The performance of this pump group is superior to the performance of atmosphere-water ring vacuum pump group, can use Roots-water ring vacuum pump group to substitute the widely-used inefficient vaccum-pumping equipment of present thermal power plant.
The purpose of the utility model is to provide a kind of thermal power plant condenser vacuum to keep system, can effectively save the energy.
The utility model is realized through following technical scheme:
A kind of thermal power plant condenser vacuum is kept system, comprising: condenser and pumped vacuum systems assembly; Said condenser connects the pumped vacuum systems assembly;
Also comprise: vacuum is kept system, and said vacuum is kept system and comprised: air inlet pipeline, air inlet hand-operated valve, vavuum pump, outlet pipe; Said air inlet pipeline, air inlet hand-operated valve, vavuum pump, outlet pipe connect successively; Said air inlet pipeline inlet end connects the condenser outlet side, and said outlet pipe outlet side connects pumped vacuum systems assembly outlet side.
Said vacuum is kept system and also comprised: air inlet quick-break magnetic valve, said air inlet quick-break magnetic valve is loaded between air inlet pipeline and the vavuum pump.
The described vavuum pump of the utility model is Roots-water ring vacuum pump group.
The utility model system mainly contains the high-efficiency vacuum pump and relevant pipe valve constitutes, it and the parallel connection of conventional vacuum pumping pump system.The effect of air inlet hand-operated valve is that the high-efficiency vacuum pump is isolated with the condenser pumped vacuum systems after stoppage in transit; The effect of air inlet quick-break magnetic valve is quick closedown when tripping operation of high-efficiency vacuum failure of pump or outage; System and condenser pumped vacuum systems are isolated fast; The effect of high-efficiency vacuum pump is normally to move, put into operation when vacuum is stablized when Turbo-generator Set, substitutes conventional high-power vavuum pump, reaches purpose of energy saving.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is a conventional thermal power plant condenser pumped vacuum systems structural representation.
Among the figure 1, air inlet pipeline; 2, air inlet hand-operated valve, 3, air inlet quick-break magnetic valve; 4, vavuum pump; 5, outlet pipe; 6, condenser.
The specific embodiment
In order better to understand the technical scheme of the utility model, describe embodiment provided by the invention in detail below in conjunction with accompanying drawing.
With reference to shown in Figure 1, conventional firepower factory condenser pumped vacuum systems comprises: condenser 6 and pumped vacuum systems assembly; Said condenser 6 connects the pumped vacuum systems assembly of two cover parallel connections.
With reference to shown in Figure 2, present embodiment is kept system at condenser 6 and pumped vacuum systems assembly two ends parallel connection vacuum, and said vacuum is kept system and comprised: air inlet pipeline 1, air inlet hand-operated valve 2, air inlet quick-break magnetic valve 3, vavuum pump 4, outlet pipe 5; Said air inlet pipeline 1, air inlet hand-operated valve 2, air inlet quick-break magnetic valve 3, vavuum pump 4, outlet pipe 5 connect successively; Said air inlet pipeline 1 inlet end connects condenser 6 outlet sides, and said outlet pipe 5 outlet sides connect pumped vacuum systems assembly outlet side.
The utility model system and the parallel connection of conventional vacuum pumping pump system; The effect of air inlet hand-operated valve 2 is that vavuum pump 4 is isolated with the pumped vacuum systems assembly after stoppage in transit; The effect of air inlet quick-break magnetic valve 3 is quick closedowns when vavuum pump 4 fault trips or outage, and system and pumped vacuum systems assembly are isolated fast, and the effect of vavuum pump 4 is normally to move, put into operation when vacuum is stablized when Turbo-generator Set; Substitute conventional high-power vavuum pump, reach purpose of energy saving.
Above-mentioned is the application of utility model system on thermal power plant's vacuum system of having gone into operation.Can directly select the Roots-water ring vacuum pump group of high efficiency low energy consumption for use for new design or when the thermal power plant vavuum pump type selecting of building, use Roots-water ring vacuum pump group according to this thought in the thermal power plant field that vacuumizes and should not be construed as restriction the utility model.
More than a kind of thermal power plant condenser vacuum that the utility model embodiment is provided keep system and carried out detailed introduction; For one of ordinary skill in the art; Thought according to the embodiment of the invention; The part that on the specific embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (3)
1. a thermal power plant condenser vacuum is kept system, comprising: condenser and pumped vacuum systems assembly; Said condenser connects the pumped vacuum systems assembly; It is characterized in that: comprise that also vacuum keeps system, said vacuum is kept system and is comprised: air inlet pipeline, air inlet hand-operated valve, vavuum pump, outlet pipe; Said air inlet pipeline, air inlet hand-operated valve, vavuum pump, outlet pipe connect successively; Said air inlet pipeline inlet end connects the condenser outlet side, and said outlet pipe outlet side connects pumped vacuum systems assembly outlet side.
2. thermal power plant according to claim 1 condenser vacuum is kept system, it is characterized in that: said vacuum is kept system and also comprised: air inlet quick-break magnetic valve, said air inlet quick-break magnetic valve is loaded between air inlet pipeline and the vavuum pump.
3. thermal power plant according to claim 1 condenser vacuum is kept system, it is characterized in that: said vavuum pump is a kind of Roots-water ring vacuum pump group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200640292U CN202532912U (en) | 2012-02-24 | 2012-02-24 | Steam condenser vacuum maintaining system for thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200640292U CN202532912U (en) | 2012-02-24 | 2012-02-24 | Steam condenser vacuum maintaining system for thermal power plant |
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| Publication Number | Publication Date |
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| CN202532912U true CN202532912U (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200640292U Expired - Lifetime CN202532912U (en) | 2012-02-24 | 2012-02-24 | Steam condenser vacuum maintaining system for thermal power plant |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091622A (en) * | 2015-09-14 | 2015-11-25 | 湖南创元铝业有限公司 | Vacuumizing system for condenser of thermal power generation set |
| CN105841131A (en) * | 2016-05-16 | 2016-08-10 | 方快锅炉有限公司 | Automatic control device and method for steam purity of vacuum boiler |
| CN106802092A (en) * | 2017-03-31 | 2017-06-06 | 武汉武泵泵业制造有限公司 | A kind of jetting stream vacuum system and vacuum for energy saving for power plants transformation maintains method |
| CN106839799A (en) * | 2017-03-31 | 2017-06-13 | 武汉武泵泵业制造有限公司 | A kind of evacuation system for steam condenser integrating device and its vacuum maintain methods and applications |
| CN108731501A (en) * | 2017-10-25 | 2018-11-02 | 江苏核电有限公司 | Energy saver and power-economizing method for the optimization of vacuum water-jet pump system operation mode |
-
2012
- 2012-02-24 CN CN2012200640292U patent/CN202532912U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091622A (en) * | 2015-09-14 | 2015-11-25 | 湖南创元铝业有限公司 | Vacuumizing system for condenser of thermal power generation set |
| CN105841131A (en) * | 2016-05-16 | 2016-08-10 | 方快锅炉有限公司 | Automatic control device and method for steam purity of vacuum boiler |
| CN106802092A (en) * | 2017-03-31 | 2017-06-06 | 武汉武泵泵业制造有限公司 | A kind of jetting stream vacuum system and vacuum for energy saving for power plants transformation maintains method |
| CN106839799A (en) * | 2017-03-31 | 2017-06-13 | 武汉武泵泵业制造有限公司 | A kind of evacuation system for steam condenser integrating device and its vacuum maintain methods and applications |
| CN106839799B (en) * | 2017-03-31 | 2023-06-16 | 武汉武泵泵业制造有限公司 | Condenser vacuumizing system integrated device and vacuum maintaining method and application thereof |
| CN108731501A (en) * | 2017-10-25 | 2018-11-02 | 江苏核电有限公司 | Energy saver and power-economizing method for the optimization of vacuum water-jet pump system operation mode |
| CN108731501B (en) * | 2017-10-25 | 2024-06-07 | 江苏核电有限公司 | Energy-saving device and energy-saving method for optimizing operation mode of vacuum water jet pump system |
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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: SHENZHEN BOZHONG ENERGY CONSERVATION ENGINEERING T Free format text: FORMER OWNER: ZOU ZHIPING Effective date: 20140425 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518000 SHENZHEN, GUANGDONG PROVINCE TO: 518054 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140425 Address after: 518054 Guangdong city of Shenzhen province Nanshan District before the sea coast International Building A 1522-1523 room Patentee after: Shenzhen Bozhong Energy Conservation Engineering Technology Co., Ltd. Address before: Nanshan District Shekou Park Road Shenzhen city Guangdong province 518000 No. 1 Fengrun haishang International Court 24D Patentee before: Zou Zhiping |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |
|
| CX01 | Expiry of patent term |