CN2731111Y - Three-low cylinder three-exhausting condensing type turbine set thermoelectric combined generation device - Google Patents
Three-low cylinder three-exhausting condensing type turbine set thermoelectric combined generation device Download PDFInfo
- Publication number
- CN2731111Y CN2731111Y CNU2004200296604U CN200420029660U CN2731111Y CN 2731111 Y CN2731111 Y CN 2731111Y CN U2004200296604 U CNU2004200296604 U CN U2004200296604U CN 200420029660 U CN200420029660 U CN 200420029660U CN 2731111 Y CN2731111 Y CN 2731111Y
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- Prior art keywords
- cylinder
- low pressure
- pressure cylinder
- flow regulator
- heat supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
The utility model discloses a three-low cylinder three-exhausting condensing type turbine set thermoelectric combined generation device, comprising a high pressure cylinder, a low pressure cylinder integrated with an intermediate pressure cylinder, a symmetrical distributed low pressure cylinder, a low pressure guide tube and a program controller. The low pressure guide tube is connected in parallel with a branch tube for sucking air and supplying heat, the branch tube for sucking air and supplying heat is provided with a flow regulator, and the other end of the branch tube is connected with a heat supply network. The low pressure guide tube communicating with the intermediate pressure cylinder and the symmetrical distributed low pressure cylinder is provided with the flow regulator. The output end of the outlet pressure sensor of the intermediate pressure cylinder is connected with the program controller. The output end of the program controller provided with a flow distribution software is connected with the flow regulator of a main steam input pipe, the flow regulator of the branch tube for sucking air and supplying heat and the flow regulator of the steam supply pipe of the symmetrical distributed low pressure cylinder. The utility model can keep original electric generating power, heat consumption rate and other technical economical indexes when heat is not needed to be supplied; the three-low cylinder three-exhausting condensing type turbine set thermoelectric combined generation device can convert into thermoelectric cogeneration mode to operate when heat is needed, and heating capacity equals to the heating capacity of a thermoelectric cogeneration machine provided with the ultra-high voltage of 135MW or a boiler room with the scale of 260t/h.
Description
Affiliated technical field
The utility model relates to the steam turbine of thermal power plant group, is specifically related to a kind of three-low cylinder three-exhauster condensing steam turbine group cogeneration system.
Background technique
The 200MW steam turbine set of power plants use now has two steam discharges and two kinds of types of three-exhauster condensing steam turbine group.Three-low cylinder three-exhauster condensing steam turbine group can only provide mechanical output to generate electricity to generator, and can not thermotropism user heat supply draw gas.Its reason is: intermediate pressure cylinder and built-in low pressure (LP) cylinder are made as one, so steam that intermediate pressure cylinder is arranged is divided into two strands of steam flows, the one tunnel enters the built-in low pressure (LP) cylinder that joins together with intermediate pressure cylinder; Another road enters structurally two external low pressure (LP) cylinders of symmetric arrangement through unicom pipeline.If perforate is drawn gas from the unicom pipeline, the steam flow that drains into latter two low pressure (LP) cylinder is reduced, cause the intermediate pressure cylinder exhaust steam pressure to reduce, the pressure drop of cylinder final stage made its excess load during this will increase, and jeopardized safety in operation; On the other hand, can not guarantee the required heat supply pressure of heating power user.Therefore China's three-low cylinder three-exhauster 200MW unit can not transform cogeneration units as.
Summary of the invention
The purpose of this utility model just provides a kind of new equipment, reaches the purpose that realizes cogeneration of heat and power at three-low cylinder three-exhauster 200MW unit.
Technical solutions of the utility model are achieved in that a kind of three-low cylinder three-exhauster condensing steam turbine group cogeneration system, comprise main steam intake line controlling device, intermediate pressure cylinder outlet pressure sensor, high-pressure cylinder, with the conjuncted low pressure (LP) cylinder of intermediate pressure cylinder, symmetrical flow deviding type low pressure (LP) cylinder, low pressure steam guiding tube, program control device; It is characterized in that parallel connection picks out the extraction for heat supply arm on the low pressure steam guiding tube, on this extraction for heat supply arm flow regulator is set, the other end of this extraction for heat supply arm is connected with heat supply network; On the low pressure steam guiding tube that is communicated with intermediate pressure cylinder and symmetrical flow deviding type low pressure (LP) cylinder, flow regulator is set; Its output of intermediate pressure cylinder outlet pressure sensor is connected to program control device; Its output of program control device that assignment of traffic software is installed is connected to main steam intake line flow regulator, extraction for heat supply tube branching flow regulating device and symmetrical flow deviding type low pressure (LP) cylinder steam line flow regulator.
The utility model can also be taked following technical measures:
Described flow regulator is electric liquid modulating valve or electric control valve.
After the utility model is implemented, after this N200-12.75/535/535 three-low cylinder three-exhauster 200MW unit is transformed into " two-purpose " cogeneration units according to the utility model, when not needing heat supply, can the pure condensate way of steam generating, still keep the technical-economic index of former designs such as original generated output, heat consumption rate; And when the needs heat supply, can change the cogeneration of heat and power mode again immediately over to move, heat capacity is equivalent to the boiler room of a 135MW ultrahigh pressure cogeneration units or 260t/h scale, therefore has the energy utilization rate height; Improve advantages such as performance driving economy.After the enforcement, has the energy utilization rate height; Improve advantages such as performance driving economy.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in detail.
Fig. 1 is a structural representation of the present utility model;
Wherein: 1-high-pressure cylinder, 2-intermediate pressure cylinder, the conjuncted low pressure (LP) cylinder of 3-and intermediate pressure cylinder, 4-symmetry flow deviding type low pressure (LP) cylinder, the 5-pressure transducer, 6-vapour condenser, 7-low pressure steam guiding tube, 8-extraction for heat supply arm, the 9-modulating valve, 10-modulating valve, 11-program control device, 12-main steam intake line controlling device, the 13-reheater
Specific embodiments
As shown in Figure 1, realize above-mentioned a kind of three-low cylinder three-exhauster condensing steam turbine group cogeneration system, comprise high-pressure cylinder 1, intermediate pressure cylinder 2, the reheater 13 that connects high-pressure cylinder 1 and intermediate pressure cylinder 2, low pressure steam guiding tube 7, with the conjuncted low pressure (LP) cylinder 3 of intermediate pressure cylinder, symmetrical flow deviding type low pressure (LP) cylinder 4, intermediate pressure cylinder outlet pressure sensor 5; External extraction for heat supply arm 8 on low pressure steam guiding tube 7, and modulating valve 10 is installed on this extraction for heat supply arm 8, the other end of this extraction for heat supply arm 8 is connected with heat supply network; On the low pressure steam guiding tube 7 of symmetrical flow deviding type low pressure (LP) cylinder 4 fronts, modulating valve 9 is installed also; Pressure transducer 5 is installed in the outlet of intermediate pressure cylinder 2, and its output is connected with program control device 11; The control electrical signal of program control device 11 outputs is connected with heat supply arm modulating valve 10 with low pressure steam guiding tube modulating valve 9 respectively.The control procedure of its cogeneration of heat and power operation is: obtaining intermediate pressure cylinder outlet exhaust steam pressure by pressure transducer 5 (is P
Middle row) signal, be that electrical signal is delivered to program control device 11 with this signal conversion, compare with safe operation setting value in the program control device 11 that assignment of traffic software is installed; According to the needs of steam turbine heat, electric load operating mode and job security, follow the tracks of adjustment by 11 pairs of low pressure steam guiding tubes of program control device modulating valve 9, heat supply arm modulating valve 10.Guaranteeing that the intermediate pressure cylinder exhaust steam pressure meets in the safe operation upper and lower scope of design code, by reducing symmetrical flow deviding type low pressure (LP) cylinder 4 throttle flows and/or increase main steam intake line steam flow, satisfying the required heating steam amount of extraction for heat supply arm 8.The program control device 11 of present embodiment is a function of using Distributed Control System (DCS), uses the Logical Configuration software systems.The described flow regulator of present embodiment is electric liquid modulating valve or electric control valve.
The utility model is described when being converted to cogeneration of heat and power below in conjunction with Fig. 1, its control procedure is as follows:
1, opens heat supply arm modulating valve 10 steam supplies by program control device 11, make extraction for heat supply arm steam flow satisfy the heat supply user requirement, at this moment P
Middle rowMust descend.
2, pressure transducer 5 is with P
Middle rowDrop-out value is converted to electrical signal and is delivered to program control device 11, converses the control electrical signal by assignment of traffic software, at first makes low pressure steam guiding tube modulating valve 9 turn down throttling, according to the P of producer's requirement
Middle row=f (G
Main vapour) concern the generating steam flow that is reduced to symmetrical flow deviding type low pressure (LP) cylinder 4, make P
Middle rowBe not less than intermediate pressure cylinder 2 exhaust steam pressure design loads under pure condensate vapour operating mode; Owing to the double influence of 9 throttlings of low pressure steam guiding tube modulating valve and extraction for heat supply, symmetrical flow deviding type low pressure (LP) cylinder 4 initial steam pressures must be lower than initial steam pressure under the pure condensate operating mode simultaneously, and safety condition is met.
3, if intermediate pressure cylinder exhaust steam pressure P
Middle rowGreater than the needed heat supply pressure of heat supply user, then turn down heat supply arm modulating valve 10, make heat supply pressure equal the required pressure of heat supply user by 10 throttlings of heat supply arm modulating valve, drive big low pressure steam guiding tube modulating valve 9 simultaneously, make P
Middle row=f (G
Main vapour) function relation is constant.
4, if intermediate pressure cylinder exhaust steam pressure P
Middle rowLess than the required pressure of heat supply user, then program control device 11 control main steam intake line controlling devices 12 increase main steam flow amount G
Main vapour, till satisfying the required heat supply pressure of heat supply user.
Above-mentioned self-regulating process is that Continuous Tracking is steadily regulated, electricity determining by heat.If dispatching of power netwoks requires to change generator power or the heating power user changes parameter, program control device 11 can be regulated by automatic held stationary, make all operations of the designated value between given upper and lower of generator power, heat supply flow and heat supply pressure, and guarantee to satisfy the relevant parameter designing regulation of unit safety economy.
Claims (2)
1, a kind of three-low cylinder three-exhauster condensing steam turbine group cogeneration system, comprise main steam intake line controlling device, intermediate pressure cylinder outlet pressure sensor, high-pressure cylinder, with the conjuncted low pressure (LP) cylinder of intermediate pressure cylinder, symmetrical flow deviding type low pressure (LP) cylinder, low pressure steam guiding tube, program control device; It is characterized in that parallel connection picks out the extraction for heat supply arm on the low pressure steam guiding tube, on this extraction for heat supply arm flow regulator is set, the other end of this extraction for heat supply arm is connected with heat supply network; On the low pressure steam guiding tube that is communicated with intermediate pressure cylinder and symmetrical flow deviding type low pressure (LP) cylinder, flow regulator is set; Its output of intermediate pressure cylinder outlet pressure sensor is connected to program control device; Its output of program control device that assignment of traffic software is installed is connected to main steam intake line flow regulator, extraction for heat supply tube branching flow regulating device and symmetrical flow deviding type low pressure (LP) cylinder steam line flow regulator.
2, a kind of three-low cylinder three-exhauster condensing steam turbine group cogeneration system according to claim 1, it is characterized in that: described flow regulator is electric liquid modulating valve or electric control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200296604U CN2731111Y (en) | 2004-08-31 | 2004-08-31 | Three-low cylinder three-exhausting condensing type turbine set thermoelectric combined generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200296604U CN2731111Y (en) | 2004-08-31 | 2004-08-31 | Three-low cylinder three-exhausting condensing type turbine set thermoelectric combined generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731111Y true CN2731111Y (en) | 2005-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200296604U Expired - Fee Related CN2731111Y (en) | 2004-08-31 | 2004-08-31 | Three-low cylinder three-exhausting condensing type turbine set thermoelectric combined generation device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661820A (en) * | 2012-04-24 | 2012-09-12 | 华电能源股份有限公司哈尔滨第三发电厂 | Method for determining actual heat consumption of steam extraction heat supply machine |
| CN101737098B (en) * | 2009-12-21 | 2013-03-20 | 上海电气电站设备有限公司 | Medium/low pressure communicating pipe steam extracting structure of straight condensing turbine |
| CN103321696A (en) * | 2013-05-20 | 2013-09-25 | 顾今 | Self-control heating supply system of thermal power plant |
-
2004
- 2004-08-31 CN CNU2004200296604U patent/CN2731111Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737098B (en) * | 2009-12-21 | 2013-03-20 | 上海电气电站设备有限公司 | Medium/low pressure communicating pipe steam extracting structure of straight condensing turbine |
| CN102661820A (en) * | 2012-04-24 | 2012-09-12 | 华电能源股份有限公司哈尔滨第三发电厂 | Method for determining actual heat consumption of steam extraction heat supply machine |
| CN102661820B (en) * | 2012-04-24 | 2013-10-30 | 华电能源股份有限公司哈尔滨第三发电厂 | Method for determining actual heat consumption of steam extraction heat supply machine |
| CN103321696A (en) * | 2013-05-20 | 2013-09-25 | 顾今 | Self-control heating supply system of thermal power plant |
| CN103321696B (en) * | 2013-05-20 | 2015-12-02 | 顾今 | A kind of thermal power generation automatic control heating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN CITY PUZHENG POWER TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: TIANJIN POWER TECH DEVELOPMENT CO Effective date: 20070615 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070615 Address after: 300384 Tianjin Huayuan Industrial Park by the three road and two weft road junction in the northwest side of Haitai green industry base J-606 Patentee after: Tianjin Universal Power Technology Co., Ltd. Address before: 300022 No. 184, Harbin Road, Heping District, Tianjin Patentee before: Tianjin Power Science & Technology Development Corp. |
|
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN POWER TECH DEVELOPMENT CO Free format text: FORMER OWNER: TIANJIN CITY PUZHENG POWER TECHNOLOGY CO., LTD. Effective date: 20100129 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100129 Address after: No. 184, Harbin Road, Heping District, Tianjin: 300040 Patentee after: Tianjin Power Science & Technology Development Corp. Address before: Tianjin Huayuan Industrial Park by the three road and two weft road junction in the northwest side of Haitai green industry base J-606, zip code: 300384 Patentee before: Tianjin Universal Power Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051005 Termination date: 20110831 |