CN206582830U - The boiler deoxidizing method device of deaerated feedwater is heated using oxygen-eliminating device exhaust heat - Google Patents
The boiler deoxidizing method device of deaerated feedwater is heated using oxygen-eliminating device exhaust heat Download PDFInfo
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- CN206582830U CN206582830U CN201720305889.3U CN201720305889U CN206582830U CN 206582830 U CN206582830 U CN 206582830U CN 201720305889 U CN201720305889 U CN 201720305889U CN 206582830 U CN206582830 U CN 206582830U
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Abstract
The utility model discloses the boiler deoxidizing method device that a kind of utilization oxygen-eliminating device exhaust heat heats deaerated feedwater, including oxygen-eliminating device, sweet-water tank, deaerator feed water pump, secondary economizer, plate type heat exchanger, it is characterised in that：The outlet connection low-pressure saturated steam output channel of described oxygen-eliminating device, the outlet of low-pressure saturated steam output channel is connected with the hot gas duct entrance in afterheat heat exchanger, and the hot gas duct outlet in afterheat heat exchanger accesses the upper end of sweet-water tank by water pipe after condensation；The outlet of described deaerator feed water pump connects the inner chamber of afterheat heat exchanger by desalination water pipe.The deaerating plant, due to low-pressure saturated steam and demineralized water are realized into heat exchange, so, the heat of low-pressure saturated steam is utilized, and adds condensate, and make condensation water circulation use；And demineralized water absorbs heat, temperature is improved, the waste of steam and heat is not only avoided, the recovery of steam waste heat and condensate is realized, and avoids the thermal pollution arranged and caused outside steam.
Description
Technical field
The utility model is related to a kind of improvement of boiler deoxidizing method device, and specifically one kind can recycle low pressure and satisfy
With the waste heat of steam, deaerated feedwater can be heated again, thermal loss caused by steam releasing is effectively reduced, and saved demineralized water and disappeared
Consumption, while the utilization oxygen-eliminating device exhaust heat for reclaiming condensed condensate heats the boiler deoxidizing method device of deaerated feedwater.
Background technology
Deaerating plant in boiler steam and water circuit, is the crucial deaeration plant of the feed water system of boiler, is by thermal de-aeration
Principle removes the dissolved oxygen in water, so as to reduce the dissolved oxygen content in boiler feedwater, slows down oxygen of the dissolved oxygen to boiler tubing
Corrosion.Because deaerating plant has the advantages that disposal ability is big, deaerating effect is good and do not introduce impurity, so extensive use
In the deoxygenation of steam generator system.In order to ensure dissolved oxygen all precipitations, and not excessive discharge low-pressure steam causes to waste, deoxygenation
The exhaust valve opening on tower head top can neither be excessive, also can not be too small, and the aperture of air bleeding valve is typically adjusted by regulation experiment.Mesh
Before, most domestic boiler water-feeding device, including oxygen-eliminating device, sweet-water tank, deaerator feed water pump, secondary economizer, plate-type heat-exchange
Device, the inlet tube of deaerator feed water pump is connected with the bottom in sweet-water tank, and the outlet of deaerator feed water pump passes through desalination water pipe
Plate type heat exchanger is accessed, is sent into after being heated through plate type heat exchanger in secondary economizer, then board-like change is sent into from the outlet of secondary economizer
Hot device, another outlet feeding oxygen-eliminating device through plate type heat exchanger.Deficiency present in this boiler deoxidizing method device is：Due to low
Press the low-pressure saturated steam flow in saturated vapor pipeline general up to 1 ton hour, temperature is 104 DEG C, with larger heat
Amount, while also containing the condensate that more temperature is 104 DEG C, this part low-pressure vapor residual heat and condensate do not reclaim profit
With result in the waste of steam heat and condensate to a certain extent.
By clue, have a variety of on the improved report of boiler deoxidizing method device at present, wherein also having surplus heat what is utilized
Report, but the waste heat utilized is fume afterheat.Have not yet to see and utilize oxygen-eliminating device exhaust heat heating deaerated feedwater and condensation
The report of water circulation use.
The content of the invention
The purpose of this utility model be to provide it is a kind of can recycle the waste heat of low-pressure saturated steam, and can heat and remove
Oxygen feeds water, moreover it is possible to make condensation water circulation use, is effectively reduced thermal loss caused by steam releasing, saves desalination water consumption,
The utilization oxygen-eliminating device exhaust heat for reclaiming condensed demineralized water simultaneously heats the boiler deoxidizing method device of deaerated feedwater.
In order to reach object above, the technical scheme that the utility model is used is：This is added using oxygen-eliminating device exhaust heat
The boiler deoxidizing method device of hot deaerated feedwater, including oxygen-eliminating device, sweet-water tank, deaerator feed water pump, secondary economizer, plate-type heat-exchange
Device, the inlet tube of deaerator feed water pump is connected with the bottom in sweet-water tank, the outlet of secondary economizer and the of plate type heat exchanger
One entrance connection, and the entrance for the primary outlet pipeline access oxygen-eliminating device after heat exchange for passing through plate type heat exchanger, its feature
It is：Described oxygen-eliminating device outlet connection low-pressure saturated steam output channel, the outlet of low-pressure saturated steam output channel with
Removed by water pipe access after condensation hot gas duct outlet in hot gas duct entrance connection in afterheat heat exchanger, afterheat heat exchanger
The upper end of brine tank；The outlet of described deaerator feed water pump connects the inner chamber of afterheat heat exchanger by desalination water pipe.
The utility model is also implemented by following measure：The outlet of described oxygen-eliminating device is provided with air bleeding valve, passes through the row of regulation
The aperture of air valve, the flow for controlling the low-pressure saturated steam in low-pressure saturated steam output channel is 1 ton hour.
The beneficial effects of the utility model are：This heats the boiler deoxidizing method dress of deaerated feedwater using oxygen-eliminating device exhaust heat
Put, due to low-pressure saturated steam and demineralized water are realized into heat exchange, so, the heat of low-pressure saturated steam is utilized,
Condensate is added, and makes condensation water circulation use；And demineralized water absorbs heat, improve temperature, not only avoid steam and
The waste of heat, realizes the recovery of steam waste heat and condensate, and avoids the thermal pollution arranged and caused outside steam.By on probation
Prove：After implementation, condensation demineralized water 1t can be reclaimed per hour, deaerator feed water pump exit water temperature improves 6 DEG C, with obvious
Implementation result.
Brief description of the drawings
Fig. 1 is Standard schematic front view of the present utility model.
Embodiment
Reference picture 1 makes the utility model.This heats the boiler deoxidizing method device of deaerated feedwater using oxygen-eliminating device exhaust heat,
Including oxygen-eliminating device 1, sweet-water tank 2, deaerator feed water pump 3, secondary economizer 4, plate type heat exchanger 5, the entrance of deaerator feed water pump 3
Pipe is connected with the bottom in sweet-water tank 2, and the outlet of secondary economizer 4 is connected with first entrance a of plate type heat exchanger 5, and is led to
Cross the entrance of the primary outlet b access of pipeline 6 oxygen-eliminating devices 1 after heat exchange of plate type heat exchanger 5, it is characterised in that：Described removes
The outlet connection low-pressure saturated steam output channel 7 of oxygen device 1, outlet and the afterheat heat exchanger 8 of low-pressure saturated steam output channel 7
Hot gas duct outlet in interior hot gas duct entrance connection, afterheat heat exchanger 8 accesses sweet-water tank 2 by water pipe 9 after condensation
Upper end；The outlet of described deaerator feed water pump 3 connects the inner chamber of afterheat heat exchanger 8 by desalination water pipe 10, is changed in waste heat
Heated, at the same time, also reduced by heat exchange in hot gas duct by the hot gas duct in afterheat heat exchanger 8 in hot device 8
Low-pressure saturated steam temperature, add condensate, its condensate flow into sweet-water tank 2 in, add circulation.
Improved as of the present utility model：The outlet of described oxygen-eliminating device 1 is provided with air bleeding valve 11, by adjusting air bleeding valve 11
Aperture, the flow for controlling low-pressure saturated steam in low-pressure saturated steam output channel 7 is 1 ton hour.
Claims (2)
1. the boiler deoxidizing method device of deaerated feedwater is heated using oxygen-eliminating device exhaust heat, including oxygen-eliminating device（1）, sweet-water tank（2）、
Deaerator feed water pump（3）, secondary economizer（4）, plate type heat exchanger（5）, deaerator feed water pump（3）Inlet tube and sweet-water tank
（2）Interior bottom connection, secondary economizer（4）Outlet and plate type heat exchanger（5）First entrance（a）Connection, and pass through plate
Formula heat exchanger（5）Primary outlet（b）The pipeline after heat exchange（6）Access oxygen-eliminating device（1）Entrance, it is characterised in that：It is described
Oxygen-eliminating device（1）Outlet connection low-pressure saturated steam output channel（7）, low-pressure saturated steam output channel（7）Outlet with
Afterheat heat exchanger（8）Interior hot gas duct entrance connection, afterheat heat exchanger（8）Interior hot gas duct outlet passes through water pipe after condensation
（9）Access sweet-water tank（2）Upper end；Described deaerator feed water pump（3）Outlet pass through desalination water pipe（10）Connect waste heat
Heat exchanger（8）Inner chamber.
2. utilization oxygen-eliminating device exhaust heat according to claim 1 heats the boiler deoxidizing method device of deaerated feedwater, its feature
It is：Described oxygen-eliminating device（1）Outlet be provided with air bleeding valve（11）.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305889.3U CN206582830U (en) | 2017-03-28 | 2017-03-28 | The boiler deoxidizing method device of deaerated feedwater is heated using oxygen-eliminating device exhaust heat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305889.3U CN206582830U (en) | 2017-03-28 | 2017-03-28 | The boiler deoxidizing method device of deaerated feedwater is heated using oxygen-eliminating device exhaust heat |
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| CN206582830U true CN206582830U (en) | 2017-10-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506923A (en) * | 2018-04-19 | 2018-09-07 | 无锡华光锅炉股份有限公司 | A kind of boiler supply water deaerating system |
| CN109578973A (en) * | 2018-11-02 | 2019-04-05 | 清华大学 | Oxygen-eliminating device system and working method |
| CN109611821A (en) * | 2018-12-24 | 2019-04-12 | 新奥数能科技有限公司 | A kind of boiler supply water deaerating system and deoxidation method |
| CN110726133A (en) * | 2019-09-26 | 2020-01-24 | 首钢京唐钢铁联合有限责任公司 | Method and device for reducing dissolved oxygen in water supply of CCPP (combined cycle process control) waste heat boiler |
-
2017
- 2017-03-28 CN CN201720305889.3U patent/CN206582830U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506923A (en) * | 2018-04-19 | 2018-09-07 | 无锡华光锅炉股份有限公司 | A kind of boiler supply water deaerating system |
| CN109578973A (en) * | 2018-11-02 | 2019-04-05 | 清华大学 | Oxygen-eliminating device system and working method |
| CN109578973B (en) * | 2018-11-02 | 2024-01-02 | 清华大学 | Deaerator system and working method |
| CN109611821A (en) * | 2018-12-24 | 2019-04-12 | 新奥数能科技有限公司 | A kind of boiler supply water deaerating system and deoxidation method |
| CN110726133A (en) * | 2019-09-26 | 2020-01-24 | 首钢京唐钢铁联合有限责任公司 | Method and device for reducing dissolved oxygen in water supply of CCPP (combined cycle process control) waste heat boiler |
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