CN201268593Y - Hot water flash evaporation deoxidization apparatus - Google Patents
Hot water flash evaporation deoxidization apparatus Download PDFInfo
- Publication number
- CN201268593Y CN201268593Y CNU2008201100219U CN200820110021U CN201268593Y CN 201268593 Y CN201268593 Y CN 201268593Y CN U2008201100219 U CNU2008201100219 U CN U2008201100219U CN 200820110021 U CN200820110021 U CN 200820110021U CN 201268593 Y CN201268593 Y CN 201268593Y
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- hot water
- water
- deoxygenation
- deaerating
- flasher
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Abstract
The utility model relates to a hot water flash evaporation deaerating plant which combines a flash evaporator and an atmospheric thermal deaerating plant together and is characterized in that the flash evaporator is arranged between the deaerating plant and a coal economizer arranged in a boiler, the upper part of the flash evaporator is connected with a deaerating head of the deaerating plant by a pipe, and the lower part of the flash evaporator is connected with a deaerating water tank of the deaerating plant by a pipe. The hot water flash evaporation deaerating plant utilizes saturated vapour generated by excessive hot water of the coal economizer through the flash evaporator to replace the extraction steam of a turbine for being used as a heating source of the deaerating plant, thereby using the excessive hot water of the coal economizer, reducing the extraction steam quantity of the turbine, increasing the turbine output, and improving the economical efficiency of the whole thermodynamic cycle.
Description
Technical field
The utility model relates to a kind of hot water flash distillation de-aerator plant, is applied to afterheat generating system.
Background technology
Be dissolved with multiple gases in oiler feed, these gases can cause the heat-exchange equipment heat transfer deterioration on the one hand, and oxygen wherein can the accelerated corrosion heat power equipment under hot conditions on the other hand.For preventing boiler corrosion and heat transfer deterioration, the operation of assurance safe and economical boiler, de-aerator plant must be set.
Flash principle: the boiling point of water and its temperature have one-to-one relationship.Pressure is high more, and the boiling point of corresponding water is also high more; Pressure is low more, and the boiling point of corresponding water is also low more.If high-pressure water heating step-down dilatation suddenly, then a part of hot water can be vaporized into steam rapidly, and another part hot water becomes the saturation water under the low pressure, and this process is called flash distillation.Flasher is exactly the device that High Temperature High Pressure hot water dilatation step-down is become low pressure flash saturation steam and low pressure saturation water according to above-mentioned principle.
The atmospheric-type thermodynamic deoxidizing device is a kind of in the thermal deoxygenizing apparatus commonly used of power station, is made up of deoxygenation head and deoxygenation water tank two portions, and the deoxygenation thermal source is from the extraction opening of steam turbine.Chemical moisturizing water inlet pipe and condensed water water inlet pipe are arranged at a deoxygenation top, and steam inlet is arranged at the bottom.The deoxygenation water tank is arranged in a deoxygenation bottom, and the deaerated water after deoxygenation collects in the deoxygenation water tank, as shown in Figure 1.The steam turbine intermediate extraction enters the deoxygenation head through connecting tube, heat-setting water and chemical feed water.Condensed water and chemical feed water are heated to temperature of saturation under the de-aerator plant pressure the most at last, make the gas that is dissolved in the water by full scale clearance.
In the cogeneration therrmodynamic system, main steam pressure and narrow some temperature have determined the quantity of steam of boiler for producing, this is to tend to occur being used to heat economizer waste heat amount to surpass actual requirement, that is to say economizer can produce excessive high-pressure water heating and do not have purposes, add hot vapour source and adopt the atmospheric-type thermodynamic deoxidizing device to need to be used as de-aerator plant from steam turbine middle part extraction part steam, this has reduced the acting quantity of steam, exerts oneself thereby reduced steam turbine.
The utility model content
Technical problem to be solved in the utility model is in order to overcome above-mentioned defective, and providing a kind of can increase the hot water flash distillation de-aerator plant that steam turbine is exerted oneself.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of hot water flash distillation de-aerator plant is provided, flasher and atmospheric-type thermodynamic deoxidizing device are combined, the top of described flasher is connected with the deoxygenation head of atmospheric-type thermodynamic deoxidizing device by pipeline, and the bottom of described flasher is connected with the deoxygenation water tank of atmospheric-type thermodynamic deoxidizing device by pipeline.The flash distillation saturation steam that the de-aerator plant thermal source provides from flasher.
Described hot water flash distillation de-aerator plant, the inlet of wherein said flasher is connected with lateral with economizer exit.The flasher thermal source is from a part of High Temperature High Pressure hot water of economizer exit.
The step-down dilatation formed low-pressure saturated steam and low pressure saturation water after hot water flash distillation de-aerator plant of the present utility model will enter flasher from the High Temperature High Pressure hot water that boiler economizer is drawn.The saturation steam that flasher is produced is introduced the deoxygenation head of atmospheric-type thermodynamic deoxidizing device by pipeline.In the deoxygenation head, top sprays the saturation steam reverse heat-exchange that the condensed water for the treatment of deoxygenation of getting off and chemical moisturizing and bottom enter, make it become temperature of saturation (104 ℃ of the temperature of saturation under the 0.2MPa operating pressure) under the de-aerator plant pressure, thereby remove oxygen and other incondensable gas in the hot water, these hot water are collected in the deoxygenation water tank of bottom then.The saturation water that flasher is produced is introduced the deoxygenation water tank by pipeline, mixes with deaerated water.Mixed deaerated water, water of condensation, flash distillation saturation water in the deoxygenation water tank, the general designation deaerated water, deaerated water is drawn from the deaerated water lower box part, sends into boiler through service pump.
This de-aerator plant is with the main difference part of conventional atmospheric-type thermodynamic deoxidizing device: conventional atmospheric-type thermodynamic deoxidizing device deoxygenation thermal source is from the steam turbine intermediate extraction; This de-aerator plant has increased flasher in system, the saturation steam that the deoxygenation thermal source produces from flasher.
Hot water flash distillation de-aerator plant of the present utility model, described vaporizer also can be connected on the vaporizer and the pipeline between the economizer of boiler by pipeline.
Compared with prior art the beneficial effect that the utility model had is: the saturation steam that hot water flash distillation de-aerator plant of the present utility model utilizes the excessive hot water of economizer to produce through flasher, replace extracted steam from turbine as the de-aerator plant thermal source, both utilized the excessive hot water of economizer, reduced the extracted steam from turbine amount again, increase steam turbine and exerted oneself, improved the economy of whole thermodynamic cycle.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the connection diagram of conventional atmospheric-type thermodynamic deoxidizing device;
Fig. 2 is the connection diagram of hot water flash distillation de-aerator plant of the present utility model.
Among the figure:
1 condensate pipe, 2 steam turbine intermediate extraction pipes, 3 deoxygenation water tanks, 4 deoxygenations, 5 a chemical filling pipe 6 are from the saturated water pipe of pipeline 7 flasher 8 flash distillation saturated steam pipes, 9 flash distillations of economizer exit
Embodiment
As shown in Figure 2, one side of flasher 7 is connected with the economizer of boiler by pipeline, the deoxygenation of the top of flasher 7 by flash distillation saturated steam pipe 8 and air suspended type de-aerator plant 4 is connected, and the bottom of flasher 7 is connected with the deoxygenation water tank 3 of air suspended type de-aerator plant by the saturated water pipe 9 of flash distillation.
The High Temperature High Pressure hot water of drawing from boiler economizer enters flasher 7 back step-down dilatations formation low-pressure saturated steam and low pressure saturation waters.The saturation steam that flasher 7 is produced is introduced the deoxygenation 4 of atmospheric-type thermodynamic deoxidizing devices by flash distillation saturated steam pipe 8.In deoxygenation 4, top sprays the saturation steam reverse heat-exchange that the condensed water for the treatment of deoxygenation of getting off and chemical moisturizing and bottom enter, make it become temperature of saturation (104 ℃ of the temperature of saturation under the 0.2MPa operating pressure) under the de-aerator plant pressure, thereby remove oxygen and other incondensable gas in the hot water, these hot water are collected in the deoxygenation water tank 3 of bottom then.The saturation water that flasher 7 is produced is introduced deoxygenation water tank 3 by the saturated water pipe 9 of flash distillation, mixes with deaerated water.Mixed deaerated water, water of condensation, flash distillation saturation water in the deoxygenation water tank 3, the general designation deaerated water, deaerated water is drawn from deoxygenation water tank 3 bottoms, sends into boiler through service pump.
The saturation steam that this hot water flash distillation de-aerator plant utilizes the excessive hot water of economizer to produce through flasher, replace extracted steam from turbine as the de-aerator plant thermal source, both utilized the excessive hot water of economizer, reduced the extracted steam from turbine amount again, increase steam turbine and exerted oneself, improved the economy of whole thermodynamic cycle.
Claims (2)
1. hot water flash distillation de-aerator plant, it is characterized in that: flasher and atmospheric-type thermodynamic deoxidizing device are combined, the top of described flasher is connected with the deoxygenation head of atmospheric-type thermodynamic deoxidizing device by pipeline, and the bottom of described flasher is connected with the deoxygenation water tank of atmospheric-type thermodynamic deoxidizing device by pipeline.
2. hot water flash distillation de-aerator plant according to claim 1 is characterized in that the inlet of described flasher is connected with lateral with economizer exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201100219U CN201268593Y (en) | 2008-08-13 | 2008-08-13 | Hot water flash evaporation deoxidization apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201100219U CN201268593Y (en) | 2008-08-13 | 2008-08-13 | Hot water flash evaporation deoxidization apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201268593Y true CN201268593Y (en) | 2009-07-08 |
Family
ID=40841187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201100219U Expired - Lifetime CN201268593Y (en) | 2008-08-13 | 2008-08-13 | Hot water flash evaporation deoxidization apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201268593Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022720A (en) * | 2010-11-01 | 2011-04-20 | 中材节能发展有限公司 | Water-supply capacity-expansion deaerator |
-
2008
- 2008-08-13 CN CNU2008201100219U patent/CN201268593Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022720A (en) * | 2010-11-01 | 2011-04-20 | 中材节能发展有限公司 | Water-supply capacity-expansion deaerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TOP RESOURCE CONSERVATION ENGINEERING CO., LTD. Free format text: FORMER NAME: TOP RESOURCE CONSERVATION ENGINEERING (CHINA) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Maples International Center, No. 32 Beijing 100082 Haidian District Xizhimen North Street office building B block 906 Patentee after: Top Resource Conservation Engineering Co., Ltd. Address before: Maples International Center, No. 32 Beijing 100082 Haidian District Xizhimen North Street office building B block 906 Patentee before: Top Resource Conservation Engineering (China) Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Hot water flash evaporation deoxidization apparatus Effective date of registration: 20120522 Granted publication date: 20090708 Pledgee: Bank of Beijing Limited by Share Ltd Dazhong Temple sub branch Pledgor: Top Resource Conservation Engineering Co., Ltd. Registration number: 2012990000225 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20130807 Granted publication date: 20090708 Pledgee: Bank of Beijing Limited by Share Ltd Dazhong Temple sub branch Pledgor: Top Resource Conservation Engineering Co., Ltd. Registration number: 2012990000225 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Maples International Center, No. 32 Beijing 100082 Haidian District Xizhimen North Street office building B block 906 Patentee after: TOP RESOURCE CONSERVATION & ENVIRONMENT CO., LTD. Address before: Maples International Center, No. 32 Beijing 100082 Haidian District Xizhimen North Street office building B block 906 Patentee before: Top Resource Conservation Engineering Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090708 |