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Deposit monitor

A sediment and detector technology, applied in temperature measurement of moving fluid, instrument, heat measurement, etc., can solve time-consuming, heat exchanger surface can not maintain temperature, expensive and other problems

Active Publication Date: 2019-04-26
ECOLAB USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, heat exchanger surfaces may become unable to maintain the desired temperature due to the formation of sufficiently large deposits on their heat exchange surfaces
In order to restore a system to normal working order, the system must often be shut down, disassembled and cleaned, which can be an expensive and time-consuming process

Method used

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Embodiment Construction

[0019] A resistance temperature detector (RTD) is a device commonly used to measure the temperature of an object of interest. For example, in some cases, an RTD's resistance is approximately linear with respect to temperature. Resistance can be measured by passing current through the RTD and measuring the voltage developed across the RTD. The current flowing through the RTD can have a heating effect on the RTD, so the current is usually kept at a relatively low magnitude during the temperature measurement. In exemplary operation, a small amount of current is passed through a conductor that is exposed to some environment whose temperature is to be measured. As the temperature changes, a characteristic change in resistance in the conductor (eg, platinum) is measured and used to calculate the temperature.

[0020] figure 1 is an illustration of an exemplary placement of one or more RTDs in a fluid flow system. As shown, RTDs 102a - d are positioned in a flow path 106 of a pro...

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Abstract

Fluid flow systems can include one or more resistance temperature detectors (RTDs) in contact with the fluid flowing through the system. One or more RTDs can be operated in a heating mode and a measurement mode. Thermal behavior of the one or more RTDs can be analyzed to characterize a level of deposit formed on the RTD(s) from the fluid flowing through the system. Characterizations of depositionon RTDs operated at different temperatures can be used to establish a temperature-dependent deposition profile. The deposition profile can be used to determine if depositions are likely to form at certain locations in the fluid flow system, such as at a use device. Detected deposit conditions can initiate one or more corrective actions that can be taken to prevent or minimize deposit formation before deposits negatively impact operation of the fluid flow system.

Description

[0001] cross reference [0002] This application is a continuation of US Patent Application Serial No. 15 / 262,807, filed September 12, 2016, the entire contents of which are incorporated herein by reference. Background technique [0003] Various fluid flow systems are configured to flow process fluid from one or more input fluid sources to a device of use. For example, a fluid flowing towards a heat exchanger surface can be used to transfer heat to or extract heat from the heat exchange surface and maintain the surface at an operating temperature. [0004] In some instances, changes in the operating conditions of the fluid flow system, such as changes in the composition of the fluid, changes in the operating temperature of the fluid, or changes in equipment used, among others, can affect the likelihood of deposits forming from the process fluid onto system components. Deposits that form on the device in use can negatively affect the performance of the device. For example, de...

Claims

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Application Information

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IPC IPC(8): G01B21/08G01N17/00G01K13/02G01K7/18
CPCG01K13/02G01K7/18G01B21/085G01N17/008G01N25/14
Inventor M·查托拉吉M·J·莫西亚A·姆克尔吉
Owner ECOLAB USA INC
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