CN205192276U - Condenser vacuum improves system - Google Patents
Condenser vacuum improves system Download PDFInfo
- Publication number
- CN205192276U CN205192276U CN201520952225.7U CN201520952225U CN205192276U CN 205192276 U CN205192276 U CN 205192276U CN 201520952225 U CN201520952225 U CN 201520952225U CN 205192276 U CN205192276 U CN 205192276U
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- Prior art keywords
- condenser
- nozzle
- condenser vacuum
- steam
- enhancing system
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 230000002708 enhancing effect Effects 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000010612 desalination reaction Methods 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract 3
- 238000007710 freezing Methods 0.000 abstract 3
- 239000000498 cooling water Substances 0.000 description 10
- 239000007921 spray Substances 0.000 description 5
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 235000014171 carbonated beverage Nutrition 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model discloses a condenser vacuum improves system, including freezing water generator, connecting tube, nozzle, characterized by: freezing water generator, one end links to each other with the demineralized water, freezing water generator and nozzle are connected to the connecting tube, the nozzle is installed between low pressure jar steam drain and condenser condenser tube. The utility model discloses useful adjustment is carried out in steam flow field to condenser inside, utilizes refrigerated water and its sport to improve condenser vacuum degree under the unchangeable circumstances of original operating mode, makes the efficiency of steam turbine obviously improve, improve the utilization ratio of heat energy, reached energy saving and consumption reduction's purpose.
Description
Technical field
The utility model belongs to technical field of vacuum equipment, is specifically related to a kind of integrated system being applied to Thermal Power Station's raising condenser vacuum.
Background technology
In Thermal Power Station, the vacuum of condenser is a main performance parameter, and have very important effect to the economy in power plant, within the specific limits, vacuum is higher, and the economy of unit is better.The foundation of Steam Turbine Condenser Vacuum and maintenance, outside removing air-extractor, mainly rely on condenser.In general condenser divides air-cooled type and wet type 2 kinds, and the steam that merit finished by steam turbine enters cooling in condenser and condenses into water, and volume sharply diminishes, height of formation vacuum.No matter condenser is the impact that air cooling or water-cooled are all subject to environment temperature and humidity, under the impact not having external factor, condensate water is similar to environment temperature, and relevant with air humidity.When the design load of condenser vacuum and steam turbine exhaust pressure is suitable, turbine efficiency can reach design load, vacuum lower than exhaust steam pressure then turbine efficiency obviously decline, generating hear rate obviously raises, and cost of electricity-generating increases.
Under stationary conditions, exhaust steam flows out to condenser from low pressure (LP) cylinder, and condense with cooling water pipe heat exchange wherein, in this process exhaust steam be subject to condenser structure affect pressure reduction increase, and be have in different flow velocitys, particularly condenser the inhomogeneities of its speed flowing field when being provided with low-pressure heater more obvious between low pressure (LP) cylinder to cooling water pipe.That is on the inner different level of condenser, have different pressure reduction and flow velocity at different positions, cause the cooling effect of the cooling water pipe of zones of different in same level different, the overall cooling effectiveness of cooling water pipe declines.Although improve the increase that low pressure (LP) cylinder steam discharge district has carried out diversion component after Generator Set is introduced, still exist in border and the differential pressure of center exhaust steam and the inhomogeneities in flow field.
Summary of the invention
The problem to be solved in the present invention is: solve the deficiencies in the prior art, provides a kind of and reduces exhaust steam differential pressure of flow in condenser, the equipment of adjustment exhaust steam speed flowing field, in order to improve condenser vacuum, increases steam turbine and exerts oneself, reduce power plants generating electricity cost.
The present invention is achieved through the following technical solutions: a kind of condenser vacuum enhancing system, comprises chilled water generator, connecting pipe, nozzle; Chilled water generating means one end is connected with demineralized water, and the demineralized water temperature entered is reduced to below low pressure (LP) cylinder exhaust temperature; By having heat-barrier material in the middle of tube wall or tube wall, the pipeline with insulation is connected with nozzle; Arrangement of nozzles is between condenser exhaust casing and condenser cooling water pipe, and its Way out is arrange along steam flow direction; Different according to the space flow field between condenser steam drain from condenser cooling water pipe, nozzle divides single or multiple lift or grouping arranged crosswise, and it is then different that the control of nozzle arranges difference according to flow field and connecting pipe arm.
The chilled water with certain pressure sprays from nozzle, forms chilled water jet; The steam promoting low pressure (LP) cylinder discharge on the one hand accelerates to flow downward, and another aspect free jet forms a negative pressuren zone near jet expansion, attracts periphery steam to accelerate to flow, and it flows to is the direction that nozzle sprays; Swiftly flowing chilled water temperature is starkly lower than the temperature of steam, and above, in two processes, carbonated drink mixes strongly, carries out heat exchange condensation, and forms the negative pressuren zone lower than surrounding enviroment pressure, again guides steam to accelerate to flow downward; Final steam water interface or steam flow condenser cooling water pipe 5 carry out heat exchange condensation.For obtaining the chilled water of stable and certain pressure, boosting water pump 7 being set in the outlet of chilled water generator, working when chilled water generator import hydraulic pressure is not enough to meet nozzle exit pressure.Condenser pressure is finally made obviously to decline.
The advantage that the utility model has and beneficial effect are:
The invention that the utility model carries out for existing condenser structure deficiency, the present invention has the following advantages and beneficial effect: the present invention carries out useful adjustment to the steam flow field of condenser inside, utilize chilled water and its jet flow to improve condenser vacuum when original operating mode is constant, the efficiency of steam turbine is significantly improved; Improve the utilization rate of heat energy, reach energy-saving and cost-reducing object.
Accompanying drawing explanation
The structural representation of Fig. 1 the utility model embodiment;
In figure: 1 is chilled water generator, and 2 is connecting pipes, and 3 is nozzles, and 4 is valves, 5 is condenser cooling water pipes, and 6 is condenser shells, and 7 is booster water pumps.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
See Fig. 1, shown condenser vacuum enhancing system comprises 1. chilled water generator, 2. connecting pipe, 3. nozzles, 4 valves, 5 cooling water pipes, 6 condenser shells, 7 booster water pumps.Chilled water generator 1 in the present embodiment, the extraneous next demineralized water with certain pressure is chilled to less than 20 degree Celsius in refrigeration machine, through having the connecting pipe 2 of heat-blocking action and the valve 4 with adjust flux and pressure effect, be each passed through condenser shell 6, be connected with multiple nozzle 3 arranged according to condenser steam inside flow field characteristic; The chilled water with certain pressure sprays from nozzle, forms a solid or hollow conical chilled water jet; The steam promoting low pressure (LP) cylinder discharge on the one hand accelerates to flow downward, and another aspect free jet forms a negative pressuren zone near jet expansion, attracts periphery steam to accelerate to flow, and it flows to is the direction that nozzle sprays; Swiftly flowing chilled water temperature is starkly lower than the temperature of steam, and above, in two processes, carbonated drink mixes strongly, carries out heat exchange condensation, and forms the negative pressuren zone lower than surrounding enviroment pressure, again guides steam to accelerate to flow downward; Final steam water interface or steam flow condenser cooling water pipe 5 carry out heat exchange condensation.For obtaining the chilled water of stable and certain pressure, boosting water pump 7 being set in the outlet of chilled water generator, working when chilled water generator import hydraulic pressure is not enough to meet nozzle exit pressure.
In view of complexity and the higher wide space of condenser steam discharge plot structure, connected by multiple nozzle 3 and be divided into 3 groups in this example, often organizing import has valve 4 to control its spray flow.The arrangement of nozzles of 2 groups of nozzles and lower floor about upper strata, arrange by the axial horizontal slice of vapor flow, its distribution density, highly, the difference with dimension is different.
The switch of valve 4, the height according to condenser vacuum regulates, and closes when condenser vacuum reaches Condenser Design value, the final operation stopping native system.
Embodiment 1
In the present embodiment, chillers use lithium bromide refrigeration machine is the one application in condenser vacuum enhancing system.
Embodiment 2
In the present embodiment, refrigeration machine adopts compression refigerating machine, is the one application in condenser vacuum enhancing system.
Claims (8)
1. a condenser vacuum enhancing system, comprises chilled water generator, connecting pipe, nozzle; It is characterized in that: described chilled water generator, one end is connected with desalination water pipe; Described connecting pipe, connects chilled water generator and nozzle; Described nozzle, is arranged between condenser low pressure (LP) cylinder steam drain and Cooling Tubes of Condenser road.
2. condenser vacuum enhancing system according to claim 1, is characterized in that: described chilled water generator at least comprises compression-type refrigeration device, absorption type refrigerating unit, steam jet type cooling device.
3. condenser vacuum enhancing system according to claim 1, is characterized in that: have heat-barrier material in the middle of described connecting pipe tube wall or tube wall.
4. the condenser vacuum enhancing system according to claim 1 or 3, is characterized in that: described connecting pipe has multiple valve, and a point multiple arm is connected with nozzle.
5. condenser vacuum enhancing system according to claim 1, is characterized in that: described nozzle divides single or multiple lift or grouping arranged crosswise.
6. condenser vacuum enhancing system according to claim 1, is characterized in that: described nozzle exit velocity is greater than or equal to vapor (steam) velocity.
7. condenser vacuum enhancing system according to claim 1, is characterized in that: described jet expansion direction is arranged along steam flow.
8. condenser vacuum enhancing system according to claim 1, is characterized in that: described connecting pipe is provided with hydraulic pressure and improves device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520952225.7U CN205192276U (en) | 2015-11-25 | 2015-11-25 | Condenser vacuum improves system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520952225.7U CN205192276U (en) | 2015-11-25 | 2015-11-25 | Condenser vacuum improves system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205192276U true CN205192276U (en) | 2016-04-27 |
Family
ID=55785257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520952225.7U Expired - Fee Related CN205192276U (en) | 2015-11-25 | 2015-11-25 | Condenser vacuum improves system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205192276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300126A (en) * | 2015-11-25 | 2016-02-03 | 谢祚祥 | System for increasing vacuum degree of condenser |
| CN107621175A (en) * | 2017-09-18 | 2018-01-23 | 杭州华电能源工程有限公司 | A kind of thermal power plant cold end system and its control method |
-
2015
- 2015-11-25 CN CN201520952225.7U patent/CN205192276U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300126A (en) * | 2015-11-25 | 2016-02-03 | 谢祚祥 | System for increasing vacuum degree of condenser |
| CN107621175A (en) * | 2017-09-18 | 2018-01-23 | 杭州华电能源工程有限公司 | A kind of thermal power plant cold end system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201118 Address after: 512000 207, building 60, Huangshaping Innovation Park, Wujiang District, Shaoguan City, Guangdong Province Patentee after: Shaoguan Tianhong Energy Saving Technology Co., Ltd Address before: 512229, Guangdong City, Shaoguan province Lechang Ping Town Huadian Shaoguan flat stone power generation B factory Patentee before: Xie Zuoxiang |
|
| 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: 20160427 Termination date: 20201125 |