CN105910092A - Vacuum deaerator system of backpressure unit and condensed water circulation method - Google Patents
Vacuum deaerator system of backpressure unit and condensed water circulation method Download PDFInfo
- Publication number
- CN105910092A CN105910092A CN201510843504.4A CN201510843504A CN105910092A CN 105910092 A CN105910092 A CN 105910092A CN 201510843504 A CN201510843504 A CN 201510843504A CN 105910092 A CN105910092 A CN 105910092A
- Authority
- CN
- China
- Prior art keywords
- valve
- vacuum
- electric
- water
- dust cather
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 239000000428 dust Substances 0.000 claims description 50
- 230000005494 condensation Effects 0.000 claims description 23
- 238000009833 condensation Methods 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 18
- 238000006392 deoxygenation reaction Methods 0.000 claims description 13
- 238000007616 round robin method Methods 0.000 claims description 10
- 238000005273 aeration Methods 0.000 claims description 4
- 230000002209 hydrophobic effect Effects 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 3
- 230000002328 demineralizing effect Effects 0.000 claims description 3
- 210000004907 gland Anatomy 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000003134 recirculating effect Effects 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Degasification And Air Bubble Elimination (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
A back pressure unit vacuum deaerator system and a condensed water circulation method mainly comprise: the device comprises a vacuum deaerator, a condensate pump, an iron removal filter, a shaft seal cooler and a vacuum pump, wherein a low-pressure steam source is used as deaerating steam and is connected with one end of an electric stop valve, the other end of the low-pressure steam source is converged into one path and is connected with an electric regulating valve, the other end of the electric regulating valve is connected with a check valve, the other end of the check valve is connected with the vacuum stop valve, and the vacuum stop valve is connected with a deaerating; one end of the vacuum electric gate valve is connected with a condensed water outlet of the vacuum deaerator, the other end of the vacuum electric gate valve is connected with an inlet side of the condensed water pump, one end of the check valve is connected with an outlet side of the condensed water pump, the other end of the check valve is connected with the electric gate valve, the other end of the electric gate valve is connected with the iron removal filter, one end of the electric stop valve is connected with the bypass electric loading/stopping valve, and the other end of the electric stop valve is; one end of the electric stop valve is connected with an outlet of the shaft seal cooler, and the other end of the electric stop valve is connected with one end of the bypass electric stop valve.
Description
Technical field
The present invention relates to a kind of back pressure unit vacuum dust cather system and condense water round-robin method, belonging to Gas-steam Combined Cycle technical field.
Background technology
China is in during readjusting the energy structure, greatly develop Gas-steam Combined Cycle technology, this technology not only output electric energy, moreover it is possible to the low-quality waste heat after generating is used for heat supply, substantially increase energy utilization rate, there is good social efficiency, energy-saving benefit and environmental benefit.
In prior art, back pressure unit steam discharge is completely used for heat supply, does not has cold source energy, and therefore the thermal efficiency is high, but back pressure unit does not has condenser, need to use two-stage deoxygenation when rate of water make-up is bigger, and current back pressure unit many employings atmospheric type deaerator, for primary deoxygenation.
Existing back pressure unit often uses atmospheric type deaerator, and after thermal de-aeration, boiler feed water temperature reaches 104 DEG C, simultaneously need to superheated steam heats, causes the waste of the energy.
Summary of the invention
It is an object of the invention to overcome existing back pressure unit big because of rate of water make-up, cannot the problem such as single-stage deoxygenation, there is provided a kind of structure composition rationally, easy to install and use, the inflow temperature of back pressure unit and the exhaust gas temperature of boiler can be reduced, thus improve the back pressure unit vacuum dust cather system of combined cycle efficiency and condense water round-robin method.
It is an object of the invention to complete by following technical solution, a kind of back pressure unit vacuum dust cather system, it specifically includes that vacuum dust cather, condensate pump, deironing filter, shaft sealing cooler, vacuum pump, low-pressure steam source is connected with electric check valve one end as deoxygenation steam, the other end converges into a road and is connected with electric control valve, the other end of electric control valve is connected with check-valves, the other end of described check-valves is connected with vaccum stop valve, and vaccum stop valve is connected with the deoxygenation interface of vacuum dust cather；One end of vacuum electric gate valve is connected with the condensation water out of vacuum dust cather, the other end is connected with the entrance side of condensate pump, check-valves one end is connected with the outlet side of condensate pump, the other end is connected with electric gate valve, the other end of electric gate valve is connected with deironing filter, one end of electric check valve door is stopped valve with the electronic load of bypass and is connected, and the other end is connected with shaft sealing cooler entrance；One end of electric check valve door is connected with the outlet of shaft sealing cooler, the other end is connected with one end of bypass electric check valve, the described bypass electric check valve other end is connected with electric check valve, this electric check valve one end is connected with electric check valve one end, the other end is connected with the entrance of condensed water in boiler, and makes condensation water form circulation from vacuum dust cather to boiler.
The outlet of shaft sealing cooler of the present invention is extracted a road recirculating line out through electric check valve and is connected with gate valve one end, this gate valve other end is connected with the normally off pneumatic control valve, the other end of this pneumatic control valve is connected with vaccum stop valve, after a road is converged in one end of the other end of vaccum stop valve and Motorized vacuum stop valve, it is connected with the recirculation interface of vacuum dust cather, makes condensation water recirculation；
Described vacuum pump is connected with one end of vaccum stop valve, the other end of this vaccum stop valve converges into a road and is connected with a wherein vaccum stop valve, the other end of another vaccum stop valve is connected with the vacuum orifice of vacuum dust cather, and makes vacuum dust cather vacuum run by the operation of vacuum pump；Described vacuum pump has two, wherein operation, one standby.
A kind of condensation water round-robin method using above-mentioned back pressure unit vacuum dust cather system, described condensation water round-robin method is: time properly functioning, chemical demineralizing water in vacuum dust cather through low-pressure steam source or select saturated vapor and superheated steam to carry out thermal de-aeration, heating demineralized water is to the saturation temperature 41.5 DEG C under 8kPa, water is condensed through the condensation water out of vacuum dust cather to condensate pump after deoxygenation, after condensate pump boosts, enter deironing filter precision processing, carrying out heat exchange through shaft sealing cooler and gland steam again, permanent set water squeezes into boiler；
When unit underload condensing water flow is less, electric check valve can be closed, open pneumatic control valve simultaneously, make condensation water be back to vacuum dust cather, it is ensured that shaft sealing cooler has enough cooling water inflows, and prevents condensate pump from cavitation occurring when flow is too small.
Vacuum dust cather of the present invention also can receive the backwater from equipment, at least one water source during turbine proper water drain, pipeline are hydrophobic, to maintain the intrasystem Steam-water Flow of back pressure unit vacuum dust cather and heat balance.
The beneficial effects are mainly as follows the following aspects:
First back pressure unit vacuum dust cather to 41.5 DEG C, improves 0.2% than the generatine set heat efficiency using atmospheric type deaerator as primary deaeration plant, reduction waste heat boiler inflow temperature；
Second, vacuum dust cather deoxygenation steam can use low parameter steam, can save valuable middle pressure steam resource, improve generatine set heat efficiency；3rd, hydrophobic, the backwater that the recyclable therrmodynamic system of vacuum dust cather produces, utilize the thermal balance of container self to be adjusted.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of back pressure unit vacuum dust cather system of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 1, a kind of back pressure unit vacuum dust cather system of the present invention, it specifically includes that vacuum dust cather 1, condensate pump 21, 22, deironing filter 3, shaft sealing cooler 4, vacuum pump 51, 52, low-pressure steam source is as deoxygenation steam and electric check valve 11, 12 one end are connected, the other end converges into a road and is connected with electric control valve 13, the other end of electric control valve 13 is connected with check-valves 14, the other end of described check-valves 14 is connected with vaccum stop valve 15, vaccum stop valve 15 is connected with the deoxygenation interface of vacuum dust cather 1；One end of vacuum electric gate valve 211,221 is connected with the condensation water out of vacuum dust cather 1, the other end is connected with the entrance side of condensate pump 21,22, check-valves 212,222 one end is connected with the outlet side of condensate pump 21,22, the other end is connected with electric gate valve 213,222, the other end of electric gate valve 213,222 is connected with deironing filter 3, one end of electric check valve door 41 is stopped valve 42 with the electronic load of bypass and is connected, and the other end is connected with shaft sealing cooler 4 entrance；One end of electric check valve door 43 is connected with the outlet of shaft sealing cooler 4, the other end is connected with one end of bypass electric check valve 42, described bypass electric check valve 42 other end is connected with electric check valve 410, this electric check valve 410 one end is connected with electric check valve 43 one end, the other end is connected with the entrance of condensed water in boiler, and makes condensation water form circulation from vacuum dust cather 1 to boiler.
Shown in figure, the outlet of shaft sealing cooler 4 of the present invention is extracted a road recirculating line out through electric check valve 43 and is connected with gate valve 44 one end, this gate valve 44 other end is connected with the normally off pneumatic control valve 45, the other end of this pneumatic control valve 45 is connected with vaccum stop valve 46, after a road is converged in one end of the other end of vaccum stop valve 46 and Motorized vacuum stop valve 47, it is connected with the recirculation interface of vacuum dust cather 1, makes condensation water recirculation；
Described vacuum pump 51,52 is connected with one end of vaccum stop valve 511,521, the other end of this vaccum stop valve 511,521 converges into a road and is connected with a wherein vaccum stop valve 512, the other end of another vaccum stop valve 512 is connected with the vacuum orifice of vacuum dust cather 1, and makes vacuum dust cather vacuum run by the operation of vacuum pump 51,52；Described vacuum pump 51,52 has two, wherein operation, one standby.
A kind of condensation water round-robin method using above-mentioned back pressure unit vacuum dust cather system, described condensation water round-robin method is: time properly functioning, chemical demineralizing water in vacuum dust cather through low-pressure steam source or select saturated vapor and superheated steam to carry out thermal de-aeration, heating demineralized water is to the saturation temperature 41.5 DEG C under 8kPa, water is condensed through the condensation water out of vacuum dust cather to condensate pump after deoxygenation, after condensate pump boosts, enter deironing filter precision processing, carrying out heat exchange through shaft sealing cooler and gland steam again, permanent set water squeezes into boiler；
When unit underload condensing water flow is less, electric check valve 410 can be closed, open pneumatic control valve 45 simultaneously, make condensation water be back to vacuum dust cather, it is ensured that shaft sealing cooler has enough cooling water inflows, and prevents condensate pump from cavitation occurring when flow is too small.Described vacuum dust cather also can receive the backwater from equipment, at least one water source during turbine proper water drain, pipeline are hydrophobic, to maintain the intrasystem Steam-water Flow of back pressure unit vacuum dust cather and heat balance.
Claims (4)
1. a back pressure unit vacuum dust cather system, it specifically includes that vacuum dust cather (1), condensate pump (21, 22), deironing filter (3), shaft sealing cooler (4), vacuum pump (51, 52), it is characterized in that: low-pressure steam source is as deoxygenation steam and electric check valve (11, 12) one end is connected, the other end converges into a road and is connected with electric control valve (13), the other end of electric control valve (13) is connected with check-valves (14), the other end of described check-valves (14) is connected with vaccum stop valve (15), vaccum stop valve (15) is connected with the deoxygenation interface of vacuum dust cather (1)；One end of vacuum electric gate valve (211,221) is connected with the condensation water out of vacuum dust cather (1), the other end is connected with the entrance side of condensate pump (21,22), check-valves (212,222) one end is connected with the outlet side of condensate pump (21,22), the other end is connected with electric gate valve (213,222), the other end of electric gate valve (213,222) is connected with deironing filter (3), one end of electric check valve door (41) is stopped valve (42) with the electronic load of bypass and is connected, and the other end is connected with shaft sealing cooler (4) entrance；One end of electric check valve door (43) is connected with the outlet of shaft sealing cooler (4), the other end is connected with one end of bypass electric check valve (42), described bypass electric check valve (42) other end is connected with electric check valve (410), this electric check valve (410) one end is connected with electric check valve (43) one end, the other end is connected with the entrance of condensed water in boiler, and makes condensation water form circulation from vacuum dust cather (1) to boiler.
Back pressure unit vacuum dust cather system the most according to claim 1, it is characterized in that the outlet of described shaft sealing cooler (4) is extracted a road recirculating line out through electric check valve (43) and is connected with gate valve (44) one end, this gate valve (44) other end is connected with the normally off pneumatic control valve (45), the other end of this pneumatic control valve (45) is connected with vaccum stop valve (46), after a road is converged in one end of the other end of vaccum stop valve (46) and Motorized vacuum stop valve (47), it is connected with the recirculation interface of vacuum dust cather (1), makes condensation water recirculation；
Described vacuum pump (51,52) is connected with one end of vaccum stop valve (511,521), the other end of this vaccum stop valve (511,521) converges into a road and is connected with a wherein vaccum stop valve (512), the other end of another vaccum stop valve (512) is connected with the vacuum orifice of vacuum dust cather (1), and makes vacuum dust cather vacuum run by the operation of vacuum pump (51,52)；Described vacuum pump (51,52) has two, wherein operation, one standby.
3. the condensation water round-robin method using back pressure unit vacuum dust cather system as claimed in claim 1 or 2, it is characterized in that described condensation water round-robin method is: time properly functioning, chemical demineralizing water in vacuum dust cather through low-pressure steam source or select saturated vapor and superheated steam to carry out thermal de-aeration, heating demineralized water is to the saturation temperature 41.5 DEG C under 8kPa, water is condensed through the condensation water out of vacuum dust cather to condensate pump after deoxygenation, after condensate pump boosts, enter deironing filter precision processing, heat exchange is carried out again through shaft sealing cooler and gland steam, permanent set water squeezes into boiler；
When unit underload condensing water flow is less, electric check valve (410) can be closed, open pneumatic control valve (45) simultaneously, make condensation water be back to vacuum dust cather, ensure that shaft sealing cooler has enough cooling water inflows, and prevent condensate pump from cavitation occurring when flow is too small.
Condensation water round-robin method the most according to claim 3, it is characterized in that described vacuum dust cather also can receive the backwater from equipment, at least one water source during turbine proper water drain, pipeline are hydrophobic, to maintain the intrasystem Steam-water Flow of back pressure unit vacuum dust cather and heat balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843504.4A CN105910092B (en) | 2015-11-26 | 2015-11-26 | Vacuum deaerator system of backpressure unit and condensed water circulation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843504.4A CN105910092B (en) | 2015-11-26 | 2015-11-26 | Vacuum deaerator system of backpressure unit and condensed water circulation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105910092A true CN105910092A (en) | 2016-08-31 |
| CN105910092B CN105910092B (en) | 2018-06-12 |
Family
ID=56744224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510843504.4A Active CN105910092B (en) | 2015-11-26 | 2015-11-26 | Vacuum deaerator system of backpressure unit and condensed water circulation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105910092B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207014A (en) * | 2019-06-05 | 2019-09-06 | 大唐郓城发电有限公司 | A kind of protection system and operating method preventing condensate pump entrance superpressure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070137204A1 (en) * | 2003-02-07 | 2007-06-21 | Elsam Engineering A/S | Steam turbine system |
| CN201531282U (en) * | 2009-11-26 | 2010-07-21 | 中材节能发展有限公司 | Vacuum deoxygenation condensation system |
| CN203545719U (en) * | 2013-09-22 | 2014-04-16 | 洛阳蓝海实业有限公司 | Deaerator with variable-sound-velocity pressurizing heat exchanger |
| CN104566331A (en) * | 2014-12-24 | 2015-04-29 | 浙江省电力设计院 | Back-pressure type heat regenerative system for combined heat and power generation |
| CN204369596U (en) * | 2014-12-23 | 2015-06-03 | 哈尔滨锅炉厂有限责任公司 | Vacuum type deoxygenator |
| CN205208540U (en) * | 2015-11-26 | 2016-05-04 | 中国能源建设集团浙江省电力设计院有限公司 | Vacuum deaerator system of backpressure unit |
-
2015
- 2015-11-26 CN CN201510843504.4A patent/CN105910092B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070137204A1 (en) * | 2003-02-07 | 2007-06-21 | Elsam Engineering A/S | Steam turbine system |
| CN201531282U (en) * | 2009-11-26 | 2010-07-21 | 中材节能发展有限公司 | Vacuum deoxygenation condensation system |
| CN203545719U (en) * | 2013-09-22 | 2014-04-16 | 洛阳蓝海实业有限公司 | Deaerator with variable-sound-velocity pressurizing heat exchanger |
| CN204369596U (en) * | 2014-12-23 | 2015-06-03 | 哈尔滨锅炉厂有限责任公司 | Vacuum type deoxygenator |
| CN104566331A (en) * | 2014-12-24 | 2015-04-29 | 浙江省电力设计院 | Back-pressure type heat regenerative system for combined heat and power generation |
| CN205208540U (en) * | 2015-11-26 | 2016-05-04 | 中国能源建设集团浙江省电力设计院有限公司 | Vacuum deaerator system of backpressure unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207014A (en) * | 2019-06-05 | 2019-09-06 | 大唐郓城发电有限公司 | A kind of protection system and operating method preventing condensate pump entrance superpressure |
| CN110207014B (en) * | 2019-06-05 | 2020-09-01 | 大唐郓城发电有限公司 | Protection system for preventing overpressure at inlet of condensate pump and operation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105910092B (en) | 2018-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2010087126A1 (en) | Power plant | |
| CN104390388A (en) | Steam type spraying-dead steam direct absorption type compound heat pump system | |
| CN204113354U (en) | A kind of gland seal system and thermodynamic system of steam tur | |
| CN205208540U (en) | Vacuum deaerator system of backpressure unit | |
| CN203411357U (en) | Heating system for thermal deaerator | |
| CN104807245A (en) | Low-temperature afterheat using system and afterheat using method | |
| CN104033390A (en) | Condensate water pump and condensate water system for turbine set as well as control method for condensate water flow | |
| CN105019957B (en) | Efficiently heat regenerative system and method | |
| CN204612228U (en) | A kind of low temperature heat system | |
| CN105910092A (en) | Vacuum deaerator system of backpressure unit and condensed water circulation method | |
| CN204554773U (en) | A kind of direct current cooker starts the hydrophobic system utilizing pressure flash vessel to reclaim | |
| CN202349998U (en) | Condensed water and water supply deoxidizing system for thermal power plant | |
| CN207621989U (en) | A kind of condensing turbine demineralized water water charging system | |
| CN103778984A (en) | Water supply system adopting once-through steam generator reactor | |
| CN211084190U (en) | Factory condensate water recycling system | |
| CN107355267A (en) | The double back pressure systems of steam feed pump and its control method | |
| CN203906301U (en) | Condensate pump for turboset and condensate system | |
| CN203980397U (en) | Air compressor machine recuperation of heat heating equipment | |
| CN108150999B (en) | Heat supply drainage deoxygenation system and deoxygenation method for combined cycle unit | |
| CN209161539U (en) | A kind of direct cooling water supply cooling system for sea water desalination | |
| CN209326399U (en) | Condense island system | |
| CN206256941U (en) | A kind of condensing turbine organic working medium circulating cooling system | |
| CN201589537U (en) | Device utilizing deaerating feed to heat condensed water in cement kiln afterheat generation | |
| CN212671881U (en) | External condensate cooling system of exhaust steam recovery heat supply supercritical unit | |
| CN210118732U (en) | Novel deaerator water charging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |