Condenser cooling tube bundle water side scale inhibition monitoring method
A condenser and cooling water technology, which is applied in the testing, instruments, measuring devices of machines/structural components, etc., can solve the problem of lack of monitoring methods for scaling the water side of the condenser cooling tube bundle, and achieve the effect of reasonable arrangement.
Pending Publication Date: 2021-12-17
XIAN THERMAL POWER RES INST CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a method for monitoring scale inhibition on the water side of the condenser cooling tube bundle, so as to solve the problem of lack of monitoring method for scale inhibition on the water side of the condenser cooling tube bundle in the existing thermal power units
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[0046] When the condenser is put into operation or after the condenser is cleaned, the cooling water resistance ΔP and the pipe end water resistance ΔP are measured at the same time a(b) and calculate the scale inhibition coefficient c on the water side, and establish the benchmark value of the scale inhibition coefficient c on the water side under different operating modes of the circulating water pump. Taking a certain unit as an example, the benchmark value of the scale inhibition coefficient c on the water side is shown in Table 1 .
[0047] Table 1
[0048]
[0049]
[0050] After the condenser has been put into operation for a long time, under different operating modes of the circulating water pump, compare it with the corresponding reference value of the water side scale inhibition coefficient. If the water side scale inhibition coefficient c increases, it means that the water side scale inhibition becomes larger. This value is convenient for calculation and It c...
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The invention discloses a condenser cooling tube bundle water side scale inhibition monitoring method, which is based on a condenser system and is characterized in that different pressure measuring points are arranged at different positions on the condenser system. The cooling water resistance in the process and the tube end water resistance in the process are continuously monitored by measuring the pressure at different positions, and the water side scale inhibition coefficient of the process is calculated through the cooling water resistance of the process and the tube end water resistance of the process; and when the scale inhibition coefficient of the water side in the process is gradually changed and exceeds a set value, the water side of the cooling tube bundle is cleaned. According to the method, the scale inhibition of the water side of the cooling tube bundle of the condenser can be effectively monitored through reasonable arrangement, theoretical calculation and comparative analysis of the pressure measuring points, and operation practice is correctly guided.
Description
technical field [0001] The invention belongs to the field of energy saving and consumption reduction of coal-fired units, and relates to a method for monitoring scale inhibition on the water side of a cooling tube bundle of a condenser. Background technique [0002] The condenser is the main auxiliary equipment of the condensing steam turbine and an important part of the steam turbine unit (steam turbine device). In the thermodynamic cycle of modern large-scale power station condensing steam turbine units, the condensing equipment plays the role of cold source, and its main task is to condense the exhaust steam of the steam turbine into water and establish and maintain a certain degree of vacuum at the exhaust port of the steam turbine. Circulating cooling water is the cold source medium in the condenser. During the long-term operation of the condenser, the circulating cooling water will be substituted or form dirt on the inner side of the cooling tube wall of the condenser,...
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IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 邹洋马汀山荆涛万超王明勇韩立李高潮贾明晓杨珍帅
Owner XIAN THERMAL POWER RES INST CO LTD