Heat supply network circulating water pump turbine system of high-back-pressure heat supply unit and driving method
A technology for circulating water pumps and heating units in a heat network, which is applied to machines/engines, pumps, jet pumps, etc., can solve the problems of unsatisfactory steam turbine exhaust parameters and flow, small capacity, and high plant power consumption, and achieves a reduction in plant power consumption. Effect of electricity consumption rate and coal consumption for power supply of the unit
Pending Publication Date: 2022-07-12
XIAN THERMAL POWER RES INST CO LTD
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Problems solved by technology
However, at present, the capacity of domestic high-back pressure heating units is generally small, and the exhaust parameters and flow rate of the steam turbine cannot meet the requirements of the steam turbine for the heating network circulating water pump. high rate
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[0024] In order to make the purpose, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. It should be understood that the following are only exemplary and do not limit the scope of the present invention.
[0025] like figure 1 As shown, the heat network circulating water pump steam turbine system of the high back pressure heating unit of the present invention includes a jet heat pump 3 connected to the main steam pipeline 1 of the high back pressure steam turbine 2 at the steam inlet end of the ejected steam, and the jet heat pump 3 The steam inlet end of the ejected steam is connected with the main steam pipeline 1 through the ejected steam electric valve 10, and the high back pressure steam turbine 2 leads out another exhaust steam pipeline 4 through the ejected steam electric valve 11 and is connected to the jet heat pump 3. Inject...
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The invention relates to a heat supply network circulating water pump steam turbine system of a high-back-pressure heat supply unit and a driving method, the system comprises an injection type heat pump, an injection steam inlet end of the injection type heat pump is connected with a main steam pipeline of a high-back-pressure steam turbine, and another steam exhaust pipeline is led out of the high-back-pressure steam turbine to be connected to an injected steam inlet end of the injection type heat pump. A steam exhaust end of the jet heat pump and a path of regenerative steam extraction pipeline led out of the high-back-pressure steam turbine are connected to a steam inlet end of a heat supply network circulating water pump steam turbine, and a steam exhaust end of the heat supply network circulating water pump steam turbine and a path of steam exhaust pipeline led out of the high-back-pressure steam turbine are both connected to a steam inlet side of a heat supply network heater; and a water outlet of the heating network heater is connected with a heating network circulating water supply pipeline. Main steam serves as injection steam, the high-back-pressure steam turbine is injected to exhaust steam, mixed steam with the pressure higher than the exhaust steam pressure of the high-back-pressure steam turbine is obtained, the mixed steam at an outlet of the injection type heat pump serves as a steam source of a heat supply network circulating water pump steam turbine, and steam turbine driving of a heat supply network circulating water pump is achieved.
Description
technical field [0001] The invention relates to the technical field of heat supply and energy saving in thermal power plants, in particular to a heat network circulating water pump steam turbine system and a driving method of a high back pressure heat supply unit. Background technique [0002] The driving steam source of the steam-driven heat network circulating water pump in the cogeneration power plant is mostly drawn from the extraction pipeline of the main engine. [0003] Compared with the electric motor drive, the steam-driven heat network circulating water pump can reduce the power consumption rate of the plant and the coal consumption for power supply. However, at present, the capacity of domestic high back pressure heating units is generally small, and the steam turbine exhaust parameters and flow rates cannot meet the requirements of the heat network circulating water pump turbine. Therefore, the heat network circulating water pump of the high back pressure heating...
Claims
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Login to View More IPC IPC(8): F01D15/08F01D17/00F01K7/38F01K17/02F01K17/04F04F5/16F04F5/54
CPCF01D15/08F01D17/00F01K7/38F01K17/02F01K17/04F04F5/16F04F5/54F05D2260/601Y02E20/14
Inventor 李冰心何欣欣杨明强王晓乾骆贵兵刘丽春崔光明杨辉任民张志博
Owner XIAN THERMAL POWER RES INST CO LTD