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Temperature-sensing serial thermometer of radiator

A radiator and temperature-sensing technology, applied in the field of distributing meters for calculating the heat consumption of radiators, can solve the problems of affecting the evaporation intensity of liquids, affecting the accuracy of readings, and low sensitivity and resolution of meters

Inactive Publication Date: 2006-08-16
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this kind of heat meter is that the evaporation tube is a temperature-sensitive element embedded in the heat conductor, and it is difficult to make the evaporation tube and the heat conductor closely contact, which affects the evaporation intensity of the liquid. The sensitivity and resolution of the instrument are low, and it is inevitable. Large error; observe the height of the evaporating liquid with a scale scale as a display, it is difficult to read and affect its accuracy

Method used

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  • Temperature-sensing serial thermometer of radiator
  • Temperature-sensing serial thermometer of radiator
  • Temperature-sensing serial thermometer of radiator

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments. The heat conducting plate 1 is an aluminum plate with an area of ​​30×20 mm and a thickness of 2 mm. The second-wire serial interface temperature sensor 2 adopts DS1820, which is pasted and fixed on the heat conducting plate 1. The temperature measuring range of the temperature sensor DS1820 is -55~+125℃, the resolution is 0.5℃, it adopts +2.2~5.5V single power supply, and the working current in standby mode drops to 0.1~0.2μA. The heat conduction plate 1 is fixed on the side of the back cover of the meter box of the temperature-sensing type serial heat meter 6 by the radiator, and the temperature-sensitive type series heat meter 6 is installed on the radiator 7 for heating. Formula R=K r Temperature Sensitivity Coefficient K in Q r Determined by experiments in advance, input into the single-chip microcomputer 3. MCU 3 adopts AT89C51....

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Abstract

A heat counting meter of series temperature sensing type used on radiator is prepared as fixing twp-wire serial interface temperature transducer on heat conduction plate, connecting SDA and SCL as well as ALRM of said transducer to P3.0 and P3.1 as well as P3.2 port of monolithic computer for carrying out collection and calculation as well as process on data then transmitting processed data to port of integrated circuit chip CD 4511 and 74LS154 being connecting to P1.0-P1.3 port and P1.4-P1.7port for displaying counted value on display .

Description

technical field [0001] The invention belongs to a heat meter in a heating system, and in particular relates to a distribution meter for calculating heat consumption of a radiator in a central heating system of an urban residence. technical background [0002] There are currently two heat metering methods in urban heat supply: single household heat meter and total heat meter heating meter (also known as heat distribution meter). The single-household heat meter is mainly suitable for the single-household heating system, that is, one set of heat meter is installed for each house. This kind of heat metering system is expensive and difficult to promote on a large scale, especially it cannot be used in the existing system. . The total heat meter heating meter is to install a heat meter on each group of radiators, install a total heat meter in the heating system, and distribute according to the readings of the heat meter on each group of radiators and...

Claims

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Application Information

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IPC IPC(8): G01K17/02G01K17/00
Inventor 刘耀浩
Owner TIANJIN UNIV