Heat supply network water circulating pump energy-saving driving system of thermal power plant

A technology for a water circulation pump and a drive system, which is applied in the field of thermal coal-fired power generation and heating units, can solve the problems of not saving energy, and the energy saving effect is not obvious, and achieve the effects of saving power consumption, small project investment risks, and low maintenance.

Inactive Publication Date: 2013-04-03
HUADIAN ELECTRIC POWER SCI INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the work efficiency of steam in the small steam turbine is generally lower than that of the main steam turbine, although this scheme can increase the electricity on the grid, from the perspecti

Method used

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  • Heat supply network water circulating pump energy-saving driving system of thermal power plant
  • Heat supply network water circulating pump energy-saving driving system of thermal power plant
  • Heat supply network water circulating pump energy-saving driving system of thermal power plant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: as figure 1 As shown, the energy-saving driving system of the heat network water circulation pump of the thermal power plant in this embodiment consists of a steam inlet pipe 1, a secondary inlet valve 11, a steam turbine inlet valve 12, a circulating water inlet pipe 2, a circulating water valve 10, a steam turbine 3, and a heat network Circulating pump 5, primary heating network heater 6, drain pump 7, secondary heating network heater 8, circulating water outlet pipe 9 and corresponding connecting pipelines.

[0019] The heating steam is divided into two paths in the steam inlet pipe 1, one path is supplied to the steam turbine 3, and the other path directly heats the circulating water of the heating network through the second-stage heat network heater 8, and the steam turbine inlet valve 12 and the second stage are respectively installed on the two paths. Stage intake valve 11. The circulating water of the heating network passes through the circulating...

Embodiment 2

[0021] Embodiment 2: as figure 2 As shown, the energy-saving driving system of the heat network water circulation pump of the thermal power plant in this embodiment consists of a steam inlet pipe 1, a circulating water inlet pipe 2, a drain pump 7, a steam turbine inlet valve 13, a circulating water valve 14 before the circulating pump, and a circulating water after the circulating pump. Valve 15, steam turbine exhaust valve 16, steam turbine exhaust steam backup valve 17, primary heating network heater front circulating water valve 18, primary heating network heater rear circulating water valve 19, primary heating network heater bypass valve 20 , Secondary heating network heater front circulating water valve 21, Secondary heating network heater rear circulating water valve 22, Secondary heating network heater Unicom valve 23, Secondary heating network heater steam inlet valve 24, No. 1 steam turbine 31 , No. 2 steam turbine 32, No. 3 steam turbine 33, No. 4 steam turbine 34,...

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PUM

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Abstract

The invention relates to a heat supply network water circulating pump energy-saving driving system of a thermal power plant, belonging to the field of thermal coal-fired power generation and heat supply units. The heat supply network water circulating pump energy-saving driving system of the thermal power plant comprises a steam inlet pipe, a heat supply network circulating water inlet pipe, a steam turbine, a steam turbine steam discharge pipe, a primary heat supply network heater, a heat supply network circulating water outlet pipe, a heat supply network circulating pump, a secondary heat supply network heater, a heat supply network heater drain pipe and valves on a pipeline, wherein the steam inlet pipe is respectively connected with the steam turbine and the secondary heat supply network heater, the heat supply network circulating water inlet pipe is connected with the heat supply network circulating pump, the secondary heat supply network heater is connected with the heat supply network circulating water inlet pipe, the primary heat supply network heater is connected with the secondary heat supply network heater through the heat supply network heater drain pipe, the steam turbine drives the heat supply network circulating pump and the steam turbine steam discharge pipe is connected with the primary heat supply network heater. The heat supply network water circulating pump energy-saving driving system of the thermal power plant has the advantages that the system design is reasonable, the energy consumption of the heat supply network circulating pump can be remarkably reduced, the overall efficiency of the thermal power generation unit and the income of thermal power enterprises are improved and the existing equipment is effectively used.

Description

technical field [0001] The invention relates to an energy-saving drive system for a heat network water circulation pump of a thermal power plant, which belongs to the field of thermal coal-fired power generation and heat supply units. Background technique [0002] In recent years, the price of coal and oil has soared, which has greatly increased the cost of power generation of thermal power plants. However, the limited increase in on-grid electricity prices and heat prices has reduced the profit margins of thermal power companies. Saving power generation costs and reducing energy consumption have become the internal needs of power generation companies. [0003] The heating system of thermal power enterprises is mainly to convert a certain level of extracted steam from the main steam turbine into low-temperature water through the heat network heater of the heat exchange station to provide heating for residents. The power equipment required for heating is to use an electric mo...

Claims

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Application Information

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IPC IPC(8): F24D3/02F24D3/10F01K27/00
CPCY02P80/10
Inventor 宋国亮李仰义袁伟刘鹏远朱斌帅徐鹏志
Owner HUADIAN ELECTRIC POWER SCI INST CO LTD
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