CN105065069A - Condensed water extracting device of turbine generator set - Google Patents
Condensed water extracting device of turbine generator set Download PDFInfo
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- CN105065069A CN105065069A CN201510497206.4A CN201510497206A CN105065069A CN 105065069 A CN105065069 A CN 105065069A CN 201510497206 A CN201510497206 A CN 201510497206A CN 105065069 A CN105065069 A CN 105065069A
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Abstract
The invention discloses a condensed water extracting device of a turbine generator set. The device comprises two condensation water pumps, wherein water inlets of the two condensation water pumps are communicated with a hot well of a condenser through a pumping main pipe, and water outlets of the two condensation water pumps are respectively communicated with a water outlet main pipe through water outlet branch pipes; each water outlet branch pipe is provided with a water outlet valve set capable of cutting off the water outlet branch pipe; packing pressure chambers are respectively formed in pump shells of the two condensation water pumps; each packing pressure chamber is provided with a pressure chamber water inlet hole; each pressure chamber water inlet hole is connected with one end of a sealing water guide pipe; and the other ends of the sealing water guide pipes are communicated with pipes communicated with the water outlet side of the water outlet valve set. The condensed water extracting device of the turbine generator set can enable the packing pressure chambers of the two condensation water pumps to be always filled with water, so that air is not easy to enter the condensation water pumps, and packing and rotating shafts can be preferably cooled.
Description
Technical field
The present invention relates to turbine LP rotors, be specifically related to the water of condensation draw-out device in turbine LP rotors.
Background technique
In turbine LP rotors, steam generator system provides steam source for steam turbine, the gas that steam turbine is discharged then enters into vapour condenser and forms water of condensation, water of condensation flows in the hot well below vapour condenser, water of condensation draw-out device sends into steam generator system after the water of condensation in hot well being extracted again, realizes recycling of water resources.For ensureing that water of condensation draw-out device normally can work according to designing requirement, usually two condensate pumps are configured with in water of condensation draw-out device, two condensate pumps can alternation as required, usually that pump that work runs is called process pump, another idle pump for subsequent use is called stand by pump, the water intake of two condensate pumps is all connected with the hot well of vapour condenser by the house steward that draws water, the water outlet of two condensate pumps is connected with outfall sewer respectively by an exit branch, and outfall sewer is then connected with the intake pipe of steam generator system; Every root exit branch is all provided with the outlet valve group be made up of one-way valve and stop valve, in work, condensate pump normally runs and another condensate pump leaves unused for subsequent use, and one-way valve can prevent the water of condensation in outfall sewer from pouring in down a chimney the normal operation affecting generator set in idle condensate pump for subsequent use.Owing to descending the water intake of condensate pump to be operated in higher negative pressure state in working order, therefore require that there is between the rotating shaft of condensate pump and pump case reliable axle sealing structure, to prevent air from entering condensate pump, and then prevent air from entering in vapour condenser, the axle sealing structure that water combines with packing_seal is adopted in current condensate pump, the pump case of condensate pump is provided with packing and tamps room, packing filling in order to gap between sealing pivot and pump case is tamped to be tamped in room at packing, water is incorporated into packing from the water outlet of condensate pump and tamps room by sealing aqueduct, there is following shortcoming in the water of condensation draw-out device of said structure: owing to being all provided with one-way valve on two exit branch, the water outlet of that condensate pump therefore idle for subsequent use does not in normal operation have press water, that is in the sealing aqueduct on stand by pump, the water useless packing that can be incorporated on stand by pump tamps in room, this can cause packing_seal cooling effect bad on the one hand, packing temperature can be caused to raise when starting stand by pump, journal wear is serious, larger to the injury of equipment.On the other hand, the gap of packing and rotating shaft also can be caused to become greatly, sealing effect is deteriorated, make air to enter stand by pump, and then can enter in vapour condenser, the degree of vacuum in steam turbine is reduced, have a strong impact on the normal operation of turbine LP rotors, even can cause stopping accident; And, after air enters stand by pump, take out not water outlet when stand by pump also can be caused to start, have impact on normally carrying out of water of condensation extraction work, water level in hot well also can be caused time serious to rise, even can trigger and start steam turbine protection device and cause stopping accident.
Summary of the invention
Technical problem to be solved by this invention is: not easily entering condensate pump by providing a kind of air, can improve the water of condensation draw-out device of the turbine LP rotors in condensate pump working life.
In order to solve the problem, the technical solution adopted in the present invention is: the water of condensation draw-out device of turbine LP rotors, comprise: two condensate pumps, the water intake of two condensate pumps is all connected with the hot well of vapour condenser by the house steward that draws water, the water outlet of two condensate pumps is connected with giving the outfall sewer of boiler water supply respectively by an exit branch, every root exit branch is all provided with the outlet valve group that can turn off this exit branch, the pump case of two condensate pumps is respectively arranged with packing and tamps room, packing filling in order to gap between sealing pivot and pump case is tamped to be tamped in room at each packing, be characterized in: tamp at two packings and room is respectively arranged with one tamps water inlet, room, each water inlet, room of tamping is connected with the one end sealing aqueduct, the other end of sealing aqueduct is connected with the pipeline that outlet valve group water outlet side is communicated with.
Further, the water of condensation draw-out device of aforesaid turbine LP rotors, wherein: described outlet valve group is made up of the first one-way valve and the first stop valve, that is: is serially connected with the first one-way valve and the first stop valve all successively on every root exit branch.
Further, the water of condensation draw-out device of aforesaid turbine LP rotors, wherein: the other end of two sealing aqueducts is directly connected with outfall sewer all respectively.
Further, the water of condensation draw-out device of aforesaid turbine LP rotors, wherein: on two sealing aqueducts, be respectively arranged with a sealed stop valve.
Further, the water of condensation draw-out device of aforesaid turbine LP rotors, wherein: the other end of two sealing aqueducts is connected with two interfaces of a tee union respectively, and another interface of tee union is connected with outfall sewer by an intermediate connection tube.
Further, the water of condensation draw-out device of aforesaid turbine LP rotors, wherein: on intermediate connection tube, be provided with sealed stop valve.
Further, the water of condensation draw-out device of aforesaid turbine LP rotors, wherein: the other end of sealing aqueduct on every platform condensate pump is connected with the exit branch of the outlet valve group water outlet side on this condensate pump.
Further, the water of condensation draw-out device of aforesaid turbine LP rotors, wherein: on every root sealing aqueduct, be all provided with sealed stop valve.
Advantage of the present invention is: the water of condensation draw-out device of turbine LP rotors of the present invention can make air not easily enter in condensate pump, and can improve the working life of condensate pump.
Accompanying drawing explanation
Fig. 1 is the structural representation of the water of condensation draw-out device of turbine LP rotors of the present invention.
Embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is described in further detail.
The water of condensation draw-out device of turbine LP rotors, as shown in Figure 1, comprise: two condensate pumps 2, wherein one is process pump, another is stand by pump, two condensate pumps 2 can be used alternatingly according to need of production, every platform condensate pump 2 is driven by a motor 1, the water intake of two condensate pumps 2 is all connected with the hot well 31 of vapour condenser 3 by the house steward 4 that draws water, the water outlet of two condensate pumps 2 is connected with the outfall sewer 5 that can supply water to boiler 6 respectively by an exit branch 24, boiler 6 provides superheated vapor can to steam turbine 7, every root exit branch 24 is all provided with the outlet valve group that can turn off this exit branch, in the present embodiment, described outlet valve group is made up of the first one-way valve 21 and the first stop valve 22, that is: on every root exit branch 24, be serially connected with the first one-way valve 21 and the first stop valve 22 all successively, arranging the first stop valve 22 is the water supply conveniently in case of emergency cutting off condensate pump 2 rapidly, arranging the first one-way valve 21 is that water of condensation in order to prevent process pump from extracting out pours in down a chimney stand by pump from outfall sewer 5 the normal operation affecting generator set, the pump case of two condensate pumps 2 is respectively arranged with packing and tamps room 23, the packing filling in order to gap between sealing pivot and pump case is tamped to be tamped in room 23 at each packing, tamp at two packings and room 23 is respectively arranged with one tamps water inlet, room, each water inlet, room of tamping is connected with the one end sealing aqueduct 8, the other end of sealing aqueduct 8 is connected with the pipeline that outlet valve group water outlet side is communicated with, in the present embodiment, the other end of two sealing aqueducts 8 is connected with two interfaces of a tee union respectively, another interface of tee union is connected with outfall sewer 5 by an intermediate connection tube 52, intermediate connection tube 52 is provided with sealed stop valve 51, after arranging like this, no matter which platform condensate pump 2 runs, always water of condensation can be connected with in the exit branch 24 of outfall sewer 5 and outlet valve group water outlet side, therefore the packing of condensate pump 2 tamps in room 23 and always can be injected into water, thus can well prevent air from entering in two condensate pumps 2, and also can well cool packing and rotating shaft, prevent rotating shaft Yin Wendu too high and burn out, and then extend the working life of two condensate pumps 2.Arranging sealed stop valve 51 is to block ducted water supply, thus conveniently safeguards pipeline.In actual applications, the other end of two sealing aqueducts 8 can directly be connected with outfall sewer 5 respectively, and is respectively arranged with a sealed stop valve on two sealing aqueducts 8; In addition, the other end of the sealing aqueduct 8 on every platform condensate pump 2 also can be connected with the exit branch 24 of the outlet valve group water outlet side on this condensate pump 2, and is all provided with sealed stop valve on every root sealing aqueduct 8.
Beneficial effect of the present invention is: the water of condensation draw-out device of turbine LP rotors of the present invention can make the packing of two condensate pumps tamp in room and always be injected into water, thus air is not easily entered in condensate pump, and also can well cool packing and rotating shaft, prevent rotating shaft Yin Wendu too high and burn out, and then extending the working life of two condensate pumps.
Claims (8)
1. the water of condensation draw-out device of turbine LP rotors, comprise: two condensate pumps, the water intake of two condensate pumps is all connected with the hot well of vapour condenser by the house steward that draws water, the water outlet of two condensate pumps is connected with giving the outfall sewer of boiler water supply respectively by an exit branch, every root exit branch is all provided with the outlet valve group that can turn off this exit branch, the pump case of two condensate pumps is respectively arranged with packing and tamps room, packing filling in order to gap between sealing pivot and pump case is tamped to be tamped in room at each packing, it is characterized in that: tamp at two packings and room is respectively arranged with one tamps water inlet, room, each water inlet, room of tamping is connected with the one end sealing aqueduct, the other end of sealing aqueduct is connected with the pipeline that outlet valve group water outlet side is communicated with.
2. the water of condensation draw-out device of turbine LP rotors according to claim 1, it is characterized in that: described outlet valve group is made up of the first one-way valve and the first stop valve, that is: on every root exit branch, be serially connected with the first one-way valve and the first stop valve all successively.
3. the water of condensation draw-out device of turbine LP rotors according to claim 1 and 2, is characterized in that: the other end of two sealing aqueducts is directly connected with outfall sewer all respectively.
4. the water of condensation draw-out device of turbine LP rotors according to claim 3, is characterized in that: on two sealing aqueducts, be respectively arranged with a sealed stop valve.
5. the water of condensation draw-out device of turbine LP rotors according to claim 1 and 2, it is characterized in that: the other end of two sealing aqueducts is connected with two interfaces of a tee union respectively, and another interface of tee union is connected with outfall sewer by an intermediate connection tube.
6. the water of condensation draw-out device of turbine LP rotors according to claim 5, is characterized in that: on intermediate connection tube, be provided with sealed stop valve.
7. the water of condensation draw-out device of turbine LP rotors according to claim 1 and 2, is characterized in that: the other end of sealing aqueduct on every platform condensate pump is connected with the exit branch of the outlet valve group water outlet side on this condensate pump.
8. the water of condensation draw-out device of turbine LP rotors according to claim 7, is characterized in that: on every root sealing aqueduct, be all provided with sealed stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510497206.4A CN105065069A (en) | 2015-08-14 | 2015-08-14 | Condensed water extracting device of turbine generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510497206.4A CN105065069A (en) | 2015-08-14 | 2015-08-14 | Condensed water extracting device of turbine generator set |
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| Publication Number | Publication Date |
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| CN105065069A true CN105065069A (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510497206.4A Pending CN105065069A (en) | 2015-08-14 | 2015-08-14 | Condensed water extracting device of turbine generator set |
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| CN (1) | CN105065069A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762711A (en) * | 2016-12-29 | 2017-05-31 | 上海市城市排水有限公司机修安装分公司 | The protection system and its method of dry pump in a kind of drainage pumping plant |
| CN112727555A (en) * | 2020-12-25 | 2021-04-30 | 华能国际电力股份有限公司营口电厂 | Condensate pump arrangement method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1382342A (en) * | 1971-01-04 | 1975-01-29 | Foster Wheeler Corp | Holding system for steam power cycle |
| CN2142143Y (en) * | 1992-11-03 | 1993-09-15 | 马头发电总厂 | Low-level water water sealing tube device for steam engine of power station |
| WO2003018963A1 (en) * | 2001-08-24 | 2003-03-06 | Dan Andreescu | Procedure for treating the gas flow, operating in the final part of the steam turbines and the equipment for performing this procedure |
| CN102322307A (en) * | 2011-06-18 | 2012-01-18 | 山西省电力勘测设计院 | Condensed water automatic discharging system of water-feeding pump steam turbine of direct air cooling unit |
| CN203257485U (en) * | 2013-05-08 | 2013-10-30 | 大唐邓州生物质能热电有限责任公司 | Condensate system |
| CN204899996U (en) * | 2015-08-14 | 2015-12-23 | 江苏永钢集团有限公司 | Condensate water draw -out device of steam turbine power generation unit |
-
2015
- 2015-08-14 CN CN201510497206.4A patent/CN105065069A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1382342A (en) * | 1971-01-04 | 1975-01-29 | Foster Wheeler Corp | Holding system for steam power cycle |
| CN2142143Y (en) * | 1992-11-03 | 1993-09-15 | 马头发电总厂 | Low-level water water sealing tube device for steam engine of power station |
| WO2003018963A1 (en) * | 2001-08-24 | 2003-03-06 | Dan Andreescu | Procedure for treating the gas flow, operating in the final part of the steam turbines and the equipment for performing this procedure |
| CN102322307A (en) * | 2011-06-18 | 2012-01-18 | 山西省电力勘测设计院 | Condensed water automatic discharging system of water-feeding pump steam turbine of direct air cooling unit |
| CN203257485U (en) * | 2013-05-08 | 2013-10-30 | 大唐邓州生物质能热电有限责任公司 | Condensate system |
| CN204899996U (en) * | 2015-08-14 | 2015-12-23 | 江苏永钢集团有限公司 | Condensate water draw -out device of steam turbine power generation unit |
Non-Patent Citations (1)
| Title |
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| 俞明，高志民: "《国外新型通用机械零件》", 30 June 1998, 中国纺织出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762711A (en) * | 2016-12-29 | 2017-05-31 | 上海市城市排水有限公司机修安装分公司 | The protection system and its method of dry pump in a kind of drainage pumping plant |
| CN112727555A (en) * | 2020-12-25 | 2021-04-30 | 华能国际电力股份有限公司营口电厂 | Condensate pump arrangement method |
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Application publication date: 20151118 |