CN103775329A - Feed water pump seal water system with heating mode and pure condensing mode - Google Patents
Feed water pump seal water system with heating mode and pure condensing mode Download PDFInfo
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- CN103775329A CN103775329A CN201310722017.3A CN201310722017A CN103775329A CN 103775329 A CN103775329 A CN 103775329A CN 201310722017 A CN201310722017 A CN 201310722017A CN 103775329 A CN103775329 A CN 103775329A
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Abstract
Provided is a feed water pump seal water system with the heating mode and the pure condensing mode. The feed water pump seal water system with the heating mode and the pure condensing mode comprises a multi-level U-shaped seal water system and a condenser, and further comprises a feed water pump seal water inlet switching pipeline and a water feed pump seal water return switching pipeline, wherein the feed water pump seal water inlet switching pipeline comprises a neighbor machine condensed water inlet pipeline and a native machine feed water pump seal water inlet pipeline, and the water feed pump seal water return switching pipeline is arranged between the multi-level U-shaped seal water system and the condenser, and comprises a heating period water return pipeline and a non-heating period water return pipeline. Compared with the prior art, the feed water pump seal water system with the heating mode and the pure condensing mode has the advantages that the temperature of feed water pump seal water is effectively lowered, and thus safe operation of a feed water pump set is ensured; the seal water return water pressure difference is further improved, it is ensured that the feed water pump seal water is smoothly discharged to the condenser, recycling of the seal water is achieved, and water resources are saved.
Description
Technical field
The present invention relates to a kind of seal water system, relate in particular to and possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate.
Background technique
Utilize 300MW grade steam-turbine unit to adopt the method for operation of the high exhaust temperature Heating Cyclic of high back pressure water heat supply at heating period.In the heat supply phase, the Used in Seawater Circulating System of vapour condenser is switched to the hot water pipe net circulating water loop that pumps for hot water supply net is set up, form new " heat-water " exchange system, the water flow that enters vapour condenser after having switched is down to 7400 ~ 9700t/h, back pressure of condenser rises to 54kPa by 4.9kPa left and right, low pressure (LP) cylinder exhaust temperature rises to 83 ℃ by 30～45 ℃, through the heating for the first time of vapour condenser, heat supply network circulating water temperature is promoted to 80 ℃ by 53 ℃, then after boosting, pumps for hot water supply net sends into initial station heat exchangers for district heating, heat supply network supply water temperature is further fed to heat supply network one time after heating, in the non-heat supply phase, the heat supply network circulation of vapour condenser is switched to the Used in Seawater Circulating System under pure condensate operating mode, recover pure condensate operating conditions.Under #2 machine pure condensate operating mode, Condenser Design back pressure is 4.9kPa, and steam turbine delivery temperature is 32.6 ℃ of left and right.For realizing the two back pressures of low pressure (LP) cylinder, double rotor exchange circulating water heating scheme, the heat supply phase requires steam turbine to move under high back pressure state, i.e. steam turbine operation back pressure is at 54KPa, and turbine discharge temperature is 83 ℃ of left and right.Under pure condensate operating mode, Sealing Water for Feedwater Pump is from condensate system, and the water of condensation design temperature of vapour condenser is 20～33 ℃, and heat supply phase condensing water temperature is 83 ℃, and Sealing Water for Feedwater Pump temperature is also 83 ℃.Under pure condensate operating mode, #2 machine Condenser Design back pressure is 4.9kPa, after transformation, under high back pressure state, moves, i.e. steam turbine operation back pressure is at 54KPa, and after Sealing Water for Feedwater Pump, pressure reduction reduces, and causing sealing water can not reclaim.As can be seen here, the condensing water temperature of heat supply phase condensing water temperature during far above pure condensate operating mode, according to the Sealing Water for Feedwater Pump of pure condensate operating condition design, under Heating State, use as Sealing Water for Feedwater Pump, its temperature drift, very easily causes feed water pump bearing temperature overtemperature, is absolutely unsafe; After high back pressure transformation, after Sealing Water for Feedwater Pump, pressure reduction reduces, and causing sealing water can not reclaim.
The patent No. is that the Chinese utility model patent of ZL201120175402.7 discloses the drainage pump shaft seal coolant seal water system in a kind of Circulated water afterheat recycling system, the heat pump that drainage pump shaft seal coolant seal water system in Circulated water afterheat recycling system connects in Circulated water afterheat recycling system drives steam temperature reducing waterpipe, and drainage pump shaft seal coolant seal water system comprises valve, spring, sealing hydroecium and by-pass valve; Wherein, valve installation is connecting on the pipeline of heat pump driving steam temperature reducing waterpipe, and spring is installed on the valve rod of valve, and valve rod is connected in valve pressure hydroecium, and by-pass valve is arranged on valve one side.Drainage pump shaft seal coolant seal water system in the Circulated water afterheat recycling system of this model utility, the scene that is not subject to does not have the restriction of demineralized water pipeline situation, use existing heat pump to drive steam high pressure Attemperation water system to be used as the shaft seal coolant seal water of drainage pump nearby, not only do not need thermal control equipment and electrical equipment and cable, still realized safe controlled, thereby reduced cost of equipment and operating expenses.But this model utility is only applicable to the cooling occasion of drainage pump shaft seal in Circulated water afterheat recycling system.
The patent No. is that the Chinese invention patent of ZL200910303130.1 discloses a kind of sealed water recovery system of feed pump, comprising: return water tank, sealing water intake pipe, sealing water outlet conduit and water return pipeline modulating valve group, exhaust duct, overflow pipe, blowdown piping.Good effect of the present invention is: return water tank is simple in structure, and system layout is simple, and occupation of land space is little, less investment; Do not need cooling water, also do not need to start water filling, water seal is effective, and operation maintenance is convenient; Electric pump adaptability is good.But improvement, simplification that the technological scheme of this invention is just carried out for single-stage seal water system, be not suitable for the occasion of Multistage U shape seal water system.
Summary of the invention
In order to solve the technological deficiency of above-mentioned existing Sealing Water for Feedwater Pump system, the technical solution used in the present invention is as follows:
A kind of possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate, comprise Multistage U shape seal water system and vapour condenser, wherein, also be provided with Sealing Water for Feedwater Pump water inlet and switch pipeline and Sealing Water for Feedwater Pump backwater switching pipeline, described Sealing Water for Feedwater Pump water inlet is switched pipeline and is comprised adjacent machine water of condensation inlet pipeline and the machine Sealing Water for Feedwater Pump inlet pipeline, described Sealing Water for Feedwater Pump backwater switches pipeline and is arranged on Multistage U shape seal water system between vapour condenser, comprises heat supply phase water return pipeline and non-heat supply phase water return pipeline.
Preferably, described adjacent machine water of condensation inlet pipeline comprises two bye-passes, and described two bye-passes are connected in parallel.
In above-mentioned arbitrary scheme, preferably, described adjacent machine water of condensation inlet pipeline is provided with the pipeline that discharges water.
In above-mentioned arbitrary scheme, preferably, described adjacent machine water of condensation inlet pipeline is provided with separating valve.
In above-mentioned arbitrary scheme, preferably, described adjacent machine water of condensation inlet pipeline is also provided with safety check.
In above-mentioned arbitrary scheme, preferably, described adjacent machine water of condensation inlet pipeline also comprises that a water inlet merges pipeline.
In above-mentioned arbitrary scheme, preferably, described water inlet merges pipeline and is provided with separating valve, using this separating valve as communicating door 1.
In above-mentioned arbitrary scheme, preferably, described the machine Sealing Water for Feedwater Pump inlet pipeline is provided with separating valve, using this separating valve as communicating door 2.
In above-mentioned arbitrary scheme, preferably, described the machine Sealing Water for Feedwater Pump inlet pipeline is also provided with safety check.
In above-mentioned arbitrary scheme, preferably, described adjacent machine water of condensation inlet pipeline and the machine Sealing Water for Feedwater Pump inlet pipeline are connected in parallel.
In above-mentioned arbitrary scheme, preferably, described Sealing Water for Feedwater Pump water inlet is switched pipeline and is also comprised the machine Sealing Water for Feedwater Pump filter screen group pipeline.
In above-mentioned arbitrary scheme, preferably, the merging interface tube of described adjacent machine water of condensation inlet pipeline and the machine Sealing Water for Feedwater Pump inlet pipeline is connected with the machine Sealing Water for Feedwater Pump filter screen group pipeline.
In above-mentioned arbitrary scheme preferably, described in the pipeline that discharges water be at least provided with a discharging valve.
In above-mentioned arbitrary scheme preferably, described in the water outlet of pipeline that discharges water be connected with trench nearby.
In above-mentioned arbitrary scheme, preferably, described the machine Sealing Water for Feedwater Pump filter screen pipeline is at least provided with a filter screen bye-pass, and described filter screen bye-pass is provided with filter screen.
In above-mentioned arbitrary scheme, preferably, described filter screen bye-pass is respectively arranged with separating valve in the rear and front end of filter screen.
In above-mentioned arbitrary scheme, preferably, described Multistage U shape seal water system comprises Multistage U shape liquid packing.
In above-mentioned arbitrary scheme, preferably, described Multistage U shape liquid packing comprises Multistage U shape liquid packing water intake.
In above-mentioned arbitrary scheme, preferably, described Multistage U shape liquid packing also comprises Multistage U shape liquid packing water outlet.
In above-mentioned arbitrary scheme, preferably, described Multistage U shape liquid packing water outlet comprises the high water outlet of Multistage U shape liquid packing and the low water outlet of Multistage U shape liquid packing.
In above-mentioned arbitrary scheme, preferably, described vapour condenser is provided with low drain opening and high drain opening.
In above-mentioned arbitrary scheme, preferably, described heat supply phase water return pipeline input end is connected with the low water outlet of Multistage U shape liquid packing.
In above-mentioned arbitrary scheme, preferably, described heat supply phase water return pipeline is provided with separating valve, using this separating valve as communicating door 3.
In above-mentioned arbitrary scheme, preferably, described heat supply phase water return pipeline output terminal is connected with the low drain opening of vapour condenser.
In above-mentioned arbitrary scheme, preferably, described non-heat supply phase water return pipeline is provided with separating valve, and using this separating valve as communicating door 4.
In above-mentioned arbitrary scheme, preferably, described non-heat supply phase water return pipeline input end is connected with the high water outlet of Multistage U shape liquid packing.
In above-mentioned arbitrary scheme, preferably, described non-heat supply phase water return pipeline output terminal is connected with the high drain opening of vapour condenser.
In above-mentioned arbitrary scheme, preferably, the absolute altitude of the input end interface of described heat supply phase water return pipeline is lower than the absolute altitude of non-heat supply phase water return pipeline input end interface.
In above-mentioned arbitrary scheme, preferably, the absolute altitude of the output terminal interface of described heat supply phase water return pipeline is lower than the absolute altitude of non-heat supply phase water return pipeline output terminal interface.
In above-mentioned arbitrary scheme, preferably, described Multistage U shape seal water system also comprises water injecting pipeline, bleed line, startup control water level pipeline, liquid packing filling pipe and Sealing Water for Feedwater Pump water return pipeline, and corresponding separating valve is set on each pipeline.
In above-mentioned arbitrary scheme, preferably, described separating valve is stop valve.
In above-mentioned arbitrary scheme, preferably, the Placement of described stop valve is for being threaded.
In above-mentioned arbitrary scheme, preferably, the Placement of described stop valve is that flange connects.
In above-mentioned arbitrary scheme, preferably, the Placement of described stop valve is for being welded to connect.
In above-mentioned arbitrary scheme, preferably, described stop valve is straight-through stop valve.
In above-mentioned arbitrary scheme, preferably, described stop valve is Oblique Stop Valve.
In above-mentioned arbitrary scheme, preferably, described stop valve is Angle Stop valves.
In above-mentioned arbitrary scheme, preferably, described stop valve is plunger stop valve.
In above-mentioned arbitrary scheme, preferably, described stop valve is Electric Actuated Stop Valves.
In above-mentioned arbitrary scheme, preferably, described stop valve is bellows stop valve.
In above-mentioned arbitrary scheme, preferably, described safety check is Swing check valve.
In above-mentioned arbitrary scheme, preferably, described safety check is Lift check valve.
In above-mentioned arbitrary scheme, preferably, described safety check is inner thread check valve.
In above-mentioned arbitrary scheme, preferably, described safety check is butterfly check valve.
In above-mentioned arbitrary scheme, preferably, the material of described safety check is cast iron.
In above-mentioned arbitrary scheme, preferably, the material of described safety check is stainless steel.
In above-mentioned arbitrary scheme, preferably, the material of described safety check is brass.
In above-mentioned arbitrary scheme, preferably, the material of described safety check is PVC.
In above-mentioned arbitrary scheme, preferably, described filter screen is individual layer bound edge filter net sheet.
In above-mentioned arbitrary scheme, preferably, described filter screen is multilayer bound edge filter net sheet.
In above-mentioned arbitrary scheme, preferably, described filter screen is stainless steel filter screen.
In above-mentioned arbitrary scheme, preferably, described filter screen is aluminium limit filter screen.
In above-mentioned arbitrary scheme, preferably, described filter screen is stainless steel limit filter screen.
In above-mentioned arbitrary scheme, preferably, described filter screen is nylon filter screen.
The present invention's beneficial effect is compared to existing technology: effectively reduce Sealing Water for Feedwater Pump temperature, thereby guarantee the safe operation of feed water pump group; Further improve sealing water backwater pressure reduction, guarantee that Sealing Water for Feedwater Pump drains into vapour condenser smoothly, realize the recycling of sealing water, saving water resource.
Accompanying drawing explanation
Fig. 1 switches pipeline one preferred embodiment structural representation according to the Sealing Water for Feedwater Pump water inlet possessing in heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate of the present invention;
Fig. 2 switches pipeline one preferred embodiment structural representation according to the Sealing Water for Feedwater Pump backwater possessing in heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate of the present invention;
Fig. 3 is the structural representation of Multistage U shape seal water system prior art;
Fig. 4 is the Multistage U shape seal water system structural representation possessing in heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate according to of the present invention.
Description of reference numerals:
1 separating valve; 2 safety check; 3 with the condensate pipe pipeline joint of adjacent machine 1; 4 with the condensate pipe pipeline joint of adjacent machine 3; 5 trenches nearby; 6 with the Sealing Water for Feedwater Pump water main pipe interface of the machine 2; The merging interface tube of 7 adjacent machine water of condensation inlet pipelines and the machine Sealing Water for Feedwater Pump inlet pipeline; 8 filter screens; 9 discharging valves; 10 vapour condenser; The high water outlet of 11 Multistage U shape liquid packing; The low water outlet of 12 Multistage U shape liquid packing; 13 start control water level pipeline; 14 liquid packing filling pipes; 15 Sealing Water for Feedwater Pump water return pipelines; 16 Multistage U shape liquid packing water intakes; 17 water injecting pipelines; 18 bleed lines; 19 low drain opening; 20 high drain opening.
Embodiment
In order to understand better the present invention, below in conjunction with specific embodiment, the present invention is explained in detail, still, obviously can carry out different modification and remodeling and not exceed the wider spirit and scope of the present invention that appended claim limits the present invention.Therefore, following examples are to have exemplary and hard-core implication.
Embodiment 1:
For effectively reducing Sealing Water for Feedwater Pump temperature, the present invention utilizes adjacent machine water of condensation to realize the normal operation for hot season Sealing Water for Feedwater Pump, and realize for hot season and the switching of the non-seal water system for the hot season by communicating door, for guaranteeing the safe and stable operation for hot season seal water system, be preferably provided with the adjacent machine water supply line in 2 tunnels; For further improving sealing water backwater pressure reduction, guarantee that Sealing Water for Feedwater Pump drains into vapour condenser using water wisely smoothly, the present invention adopts and reduces the scheme of multi-stage sealed sum of series reduction feed water pump seal tank to vapour condenser drain opening height, guarantee the smooth and easy vapour condenser that drains into of Sealing Water for Feedwater Pump, guarantee the recovery of Sealing Water for Feedwater Pump, install communicating door simultaneously additional, carry out heat supply phase and the switching of sealing of non-heat supply phase water.
Technological scheme of the present invention as Figure 1-4, a kind of possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate, comprise Multistage U shape seal water system and vapour condenser, wherein, also be provided with Sealing Water for Feedwater Pump water inlet and switch pipeline and Sealing Water for Feedwater Pump backwater switching pipeline, described Sealing Water for Feedwater Pump water inlet is switched pipeline and is comprised adjacent machine water of condensation inlet pipeline and the machine Sealing Water for Feedwater Pump inlet pipeline, described Sealing Water for Feedwater Pump backwater switches pipeline and is arranged on Multistage U shape seal water system between vapour condenser, comprises heat supply phase water return pipeline and non-heat supply phase water return pipeline.Described adjacent machine water of condensation inlet pipeline comprises two bye-passes, this two bye-pass be respectively equipped with the condensate pipe pipeline joint 3 of adjacent machine 1 and with the condensate pipe pipeline joint 4 of adjacent machine 3, described two bye-passes are connected in parallel, described adjacent machine water of condensation inlet pipeline is provided with the pipeline that discharges water, described adjacent machine water of condensation inlet pipeline is provided with separating valve 1, described adjacent machine water of condensation inlet pipeline is also provided with safety check 2, described adjacent machine water of condensation inlet pipeline also comprises that a water inlet merges pipeline, described water inlet merges pipeline and is provided with separating valve 1, using this separating valve 1 as communicating door 1, described the machine Sealing Water for Feedwater Pump inlet pipeline is provided with separating valve 1, the Sealing Water for Feedwater Pump water main pipe interface 6 of safety check 2 and the machine 2, using this separating valve 1 as communicating door 2, described adjacent machine water of condensation inlet pipeline and the machine Sealing Water for Feedwater Pump inlet pipeline are connected in parallel, described Sealing Water for Feedwater Pump water inlet is switched pipeline and is also comprised the machine Sealing Water for Feedwater Pump filter screen group pipeline, the merging interface tube 7 of described adjacent machine water of condensation inlet pipeline and the machine Sealing Water for Feedwater Pump inlet pipeline is connected with the machine Sealing Water for Feedwater Pump filter screen group pipeline, the described pipeline that discharges water is at least provided with a discharging valve 9, the water outlet of the described pipeline that discharges water is connected with trench 5 nearby, described the machine Sealing Water for Feedwater Pump filter screen pipeline is at least provided with a filter screen bye-pass, described filter screen bye-pass is provided with filter screen 8, described filter screen bye-pass is respectively arranged with separating valve 1 in the rear and front end of filter screen 8, described Multistage U shape seal water system comprises Multistage U shape liquid packing, described Multistage U shape liquid packing comprises Multistage U shape liquid packing water intake 16 and Multistage U shape liquid packing water outlet, described Multistage U shape liquid packing water outlet comprises the high water outlet 11 of Multistage U shape liquid packing and the low water outlet 12 of Multistage U shape liquid packing, described vapour condenser 10 is provided with low drain opening 19 and high drain opening 20, described heat supply phase water return pipeline input end is connected with the low water outlet 12 of Multistage U shape liquid packing, described heat supply phase water return pipeline is provided with separating valve 1, using this separating valve 1 as communicating door 3, described heat supply phase water return pipeline output terminal is connected with the low drain opening 19 of vapour condenser 10, described non-heat supply phase water return pipeline is provided with separating valve 1, and using this separating valve 1 as communicating door 4, described non-heat supply phase water return pipeline input end is connected with the high water outlet 11 of Multistage U shape liquid packing, described non-heat supply phase water return pipeline output terminal is connected with the high drain opening 20 of vapour condenser 10, the absolute altitude of the input end interface of described heat supply phase water return pipeline is lower than the absolute altitude of non-heat supply phase water return pipeline input end interface, the absolute altitude of the output terminal interface of described heat supply phase water return pipeline is lower than the absolute altitude of non-heat supply phase water return pipeline output terminal interface, described Multistage U shape seal water system also comprises water injecting pipeline 17, bleed line 18, start and control water level pipeline 13, liquid packing filling pipe 14 and Sealing Water for Feedwater Pump water return pipeline 15, corresponding separating valve 1 is set on each pipeline, separating valve 1 is stop valve, the Placement of described stop valve is for being threaded, described stop valve is Electric Actuated Stop Valves, safety check 2 is Swing check valve, the material of safety check 2 is stainless steel, filter screen 8 is multilayer bound edge stainless steel filter net sheet.
Working principle of the present invention:
The method of operation for the hot season: open communicating door 1 and 3, closing communicating door 2 and 4, #2 unit Sealing Water for Feedwater Pump is provided by #1 machine or #3 machine condensate system.
Non-heat supply seasonal operation mode: open communicating door 2 and 4, close communicating door 1 and 3, #2 unit Sealing Water for Feedwater Pump is provided by the machine condensate system.
Wherein, above-mentioned #2 machine is equivalent to aforesaid the machine, and above-mentioned #1 machine or #3 machine are equivalent to aforesaid adjacent machine 1 or adjacent machine 3.
Embodiment 2:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that the Placement of described stop valve is that flange connects.
Embodiment 3:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that the Placement of described stop valve is for being welded to connect.
Embodiment 4:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that described stop valve is straight-through stop valve.
Embodiment 5:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that described stop valve is Oblique Stop Valve.
Embodiment 6:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that described stop valve is Angle Stop valves.
Embodiment 7:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that described stop valve is plunger stop valve.
Embodiment 8:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that described stop valve is bellows stop valve.
Embodiment 9:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that described safety check is Lift check valve.
Embodiment 10:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that described safety check is inner thread check valve.
Embodiment 11:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that described safety check is butterfly check valve.
Embodiment 12:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that the material of described safety check is cast iron.
Embodiment 13:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that the material of described safety check is brass.
Embodiment 14:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that the material of described safety check is PVC.
Embodiment 15:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that described filter screen is individual layer bound edge filter net sheet.
Embodiment 16:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that described filter screen is aluminium limit filter screen.
Embodiment 17:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that described filter screen is stainless steel limit filter screen.
Embodiment 18:
Possess the double mode Sealing Water for Feedwater Pump system of heat supply and pure condensate, similar to embodiment 1, difference is that described filter screen is nylon filter screen.
Claims (10)
1. one kind possesses heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate, comprise Multistage U shape seal water system and vapour condenser, it is characterized in that: be also provided with Sealing Water for Feedwater Pump water inlet and switch pipeline and Sealing Water for Feedwater Pump backwater switching pipeline, described Sealing Water for Feedwater Pump water inlet is switched pipeline and is comprised adjacent machine water of condensation inlet pipeline and the machine Sealing Water for Feedwater Pump inlet pipeline, described Sealing Water for Feedwater Pump backwater switches pipeline and is arranged on Multistage U shape seal water system between vapour condenser, comprises heat supply phase water return pipeline and non-heat supply phase water return pipeline.
2. as claimed in claim 1 possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate, it is characterized in that, described adjacent machine water of condensation inlet pipeline comprises two bye-passes, and described two bye-passes are connected in parallel.
3. as claimed in claim 2 possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate, it is characterized in that, described adjacent machine water of condensation inlet pipeline is provided with the pipeline that discharges water.
4. as claimed in claim 3 possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate, it is characterized in that, described adjacent machine water of condensation inlet pipeline is provided with separating valve (1).
5. as claimed in claim 4 possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate, it is characterized in that, described adjacent machine water of condensation inlet pipeline is also provided with safety check (2).
6. as claimed in claim 5 possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate, it is characterized in that, described adjacent machine water of condensation inlet pipeline also comprises that a water inlet merges pipeline.
7. as claimed in claim 6 possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate, it is characterized in that, described water inlet merges pipeline and is provided with separating valve (1), using this separating valve (1) as communicating door 1.
8. as claimed in claim 7 possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate, it is characterized in that, described the machine Sealing Water for Feedwater Pump inlet pipeline is provided with separating valve (1), using this separating valve (1) as communicating door 2.
9. as claimed in claim 8 possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate, it is characterized in that, described the machine Sealing Water for Feedwater Pump inlet pipeline is also provided with safety check (2).
10. as claimed in claim 9 possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate, it is characterized in that, described adjacent machine water of condensation inlet pipeline and the machine Sealing Water for Feedwater Pump inlet pipeline are connected in parallel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310722017.3A CN103775329B (en) | 2013-12-25 | 2013-12-25 | A kind of possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate |
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| CN201310722017.3A CN103775329B (en) | 2013-12-25 | 2013-12-25 | A kind of possess heat supply and the double mode Sealing Water for Feedwater Pump system of pure condensate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030046A (en) * | 2019-03-28 | 2019-07-19 | 华电电力科学研究院有限公司 | A kind of condensate system and operation method for Turbo-generator Set |
| CN114704458A (en) * | 2022-04-02 | 2022-07-05 | 中国电建集团江西省电力设计院有限公司 | 9H cascade closes sealed water system of steam-driven feed pump of circulation gas unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004012264A (en) * | 2002-06-06 | 2004-01-15 | Toshiba Corp | Facility for recovering condensed water in in-plant steam system of nuclear power plant |
| JP2009127568A (en) * | 2007-11-26 | 2009-06-11 | Chugoku Electric Power Co Inc:The | Sealing water collection system and power generation facility including same |
| JP2011157855A (en) * | 2010-01-29 | 2011-08-18 | Chugoku Electric Power Co Inc:The | Power generation facility and operating method for power generation facility |
| US8567177B1 (en) * | 2012-11-30 | 2013-10-29 | Yoganeck, LLC | Gas turbine engine system with water recycling feature |
| CN203906248U (en) * | 2013-12-25 | 2014-10-29 | 华电国际电力股份有限公司山东分公司 | Heat supply and pure condensation dual-mode seal water system of feed pump |
-
2013
- 2013-12-25 CN CN201310722017.3A patent/CN103775329B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004012264A (en) * | 2002-06-06 | 2004-01-15 | Toshiba Corp | Facility for recovering condensed water in in-plant steam system of nuclear power plant |
| JP2009127568A (en) * | 2007-11-26 | 2009-06-11 | Chugoku Electric Power Co Inc:The | Sealing water collection system and power generation facility including same |
| JP2011157855A (en) * | 2010-01-29 | 2011-08-18 | Chugoku Electric Power Co Inc:The | Power generation facility and operating method for power generation facility |
| US8567177B1 (en) * | 2012-11-30 | 2013-10-29 | Yoganeck, LLC | Gas turbine engine system with water recycling feature |
| CN203906248U (en) * | 2013-12-25 | 2014-10-29 | 华电国际电力股份有限公司山东分公司 | Heat supply and pure condensation dual-mode seal water system of feed pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030046A (en) * | 2019-03-28 | 2019-07-19 | 华电电力科学研究院有限公司 | A kind of condensate system and operation method for Turbo-generator Set |
| CN110030046B (en) * | 2019-03-28 | 2023-11-28 | 华电电力科学研究院有限公司 | Condensate water system for steam turbine generator unit and operation method |
| CN114704458A (en) * | 2022-04-02 | 2022-07-05 | 中国电建集团江西省电力设计院有限公司 | 9H cascade closes sealed water system of steam-driven feed pump of circulation gas unit |
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| CN103775329B (en) | 2016-01-06 |
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