Unlock instant, AI-driven research and patent intelligence for your innovation.

Gas and steam turbine system having feed-water partial-flow degasser

A technology of steam turbine and gas, which is applied in the field of split degassing of low-pressure steam drum and feed water degassing, which can solve the problems of increasing equipment complexity and equipment technology cost

Inactive Publication Date: 2015-06-10
SIEMENS AG
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The mentioned devices and the corresponding method require additional expenditure in terms of device technology and increase the complexity of the device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gas and steam turbine system having feed-water partial-flow degasser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The drawing schematically shows the water-steam cycle of a combined gas and steam turbine plant 1 . It only shows the steam turbine unit 2 of the combined gas and steam turbine plant 1 . In order to make the view clearer, the gas turbine installation is omitted in the figure. The steam turbine device 2 includes a steam turbine 3 connected with a generator 4, a condenser 5 connected downstream of the steam turbine 3, and a waste heat boiler 6 through which the high-temperature exhaust gas of the gas turbine not shown in the figure flows.

[0027] The steam turbine 3 consists of a high pressure part 7 , a medium pressure part 8 and a low pressure part 9 .

[0028] The waste heat boiler 6 includes a condensate preheater 10 which, on the inlet side, can be supplied with condensate from the condenser 5 through a condensate pipe 11 to which a condensate pump 12 is connected. On the outlet side, the condensate preheater 10 is connected via a first condensate branch 13 to the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for operating a gas and steam turbine system (1), wherein the heat contained in the expanded working medium of an associated gas turbine is used in an associated waste-heat steam generator (6) to produce steam for an associated steam turbine (3) having at least one low-pressure part (9) and one high-pressure part (7), wherein a low-pressure stage (14) having a low-pressure drum (48) is associated with the low-pressure part (9) in the waste-heat steam generator (6), wherein gases dissolved in the water or steam are substantially degassed from steam for the low-pressure part (9) from the low-pressure drum (48) and the steam production in the low-pressure drum (48) is varied in order to control the degassing in that heat is shifted within the waste-heat steam generator (6), wherein the heat is shifted in the waste-heat steam generator (6) in that less heat is drawn from the working medium in a medium- (42) or high-pressure stage (22) of the gas and steam turbine system (1).

Description

technical field [0001] The invention relates to a method for operating gas and steam turbine installations, in particular for degassing feed water, and to the split degassing of low-pressure steam drums. Background technique [0002] In order to produce the required water chemistry in the water-steam cycle of thermal power plants, it is necessary to remove non-condensable gases dissolved in water or steam, such as oxygen or carbon dioxide, from the cycle. [0003] Oxygen and inert gases are usually removed in the turbine condenser, provided the turbine condenser is designed for this and suitable for degassing. Ammonium dosing is often prescribed for alkalinization (pH > 7) in the water vapor cycle. Thus there is CO as ammonium carbonate 2 , and degassing (thermal decomposition of chemical compounds) is only possible at temperatures above 135°C. [0004] So-called feedwater tanks that degas at high temperatures are often installed in thermal power plants. Feedwater tan...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F01K23/10
CPCB01D19/0036F01K23/108C02F1/20C02F2103/02F01K7/16F01K23/10
Inventor E.施密德M.舍特勒H.斯蒂尔斯托弗A.索尔纳
Owner SIEMENS AG