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Calorimeter signal acquisition device, calorimeters and method for computing heating load

A technology of heat collection and signal collection, which is applied in the field of heat meters, can solve the problems of high price, impact on accuracy, and degree of pipe wall corrosion, and achieve the effects of low cost, large measurement range, and high measurement accuracy

Inactive Publication Date: 2011-10-19
凌子龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the mechanical type has the advantages of less power consumption, good anti-interference, convenient installation and maintenance, and low price, so it is widely used now, such as France and Germany, the proportion of mechanical flowmeters is as high as 90%, but mechanical meters are in When there are many impurities in the water, the accuracy will be greatly affected
The ultrasonic type is characterized by large measuring range, high measurement accuracy, and less pressure loss, but it is easily affected by the degree of corrosion of the pipe wall, the content of foam or impurities in the water, and the vibration of the pipe, and the price is much more expensive than the mechanical type.

Method used

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  • Calorimeter signal acquisition device, calorimeters and method for computing heating load
  • Calorimeter signal acquisition device, calorimeters and method for computing heating load
  • Calorimeter signal acquisition device, calorimeters and method for computing heating load

Examples

Experimental program
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Effect test

Embodiment 1

[0021] This example figure 1 As shown, adopt heat-conducting material to make a heat-conducting body 5, and one side is in contact with the heat-carrying fluid in the pipeline, is referred to as the heat collection surface 17 here, and the other side is made radiator 6 (also can be connected on a radiator), here It is called the heat dissipation surface 18, and a relatively long and narrow area is made in the heat conduction path from the pipe to the radiator, and then the heat dissipation end temperature sensor 1 and the heat collection end temperature sensor 2 are respectively arranged at both ends of the long and narrow area, and the outer surface of the heat conductor The surface, except the heat collection surface 17 and the heat dissipation surface 18, has adopted thermal insulation measures, for example, covered with thermal insulation material or thermal insulation material, and a vacuum insulation layer can also be set.

[0022] In this embodiment, the heat conductor ...

Embodiment 2

[0027] This example figure 2 As shown, two heat conductors are made of heat-conducting materials. One end surface of the first heat conductor 5 is in contact with the heat-carrying fluid in the pipeline, which is called the heat collection surface 17 here, and the other opposite end surface is in contact with the hot end of the refrigeration semiconductor 12. One end face of the second heat conductor is connected to the cold end of the refrigeration semiconductor 12, and the other opposite end face is made into a radiator 6 (it can also be connected to a radiator), which is composed of two heat conductors and a refrigeration semiconductor. unit. A heat conduction unit is formed by two heat conductors and refrigeration semiconductors. The outer surface of the heat conduction unit, except for the two heat collection surfaces 17 and the heat dissipation surface 18, has adopted heat preservation measures, for example, covered with heat preservation material or heat insulation mat...

Embodiment 3

[0031] Embodiment 3 is applicable to the measurement of heat supply in the case of a larger pipe diameter or a larger flow rate of a heat-carrying fluid. This is like image 3 As shown, the difference between embodiment 3 and embodiment 1 is that when the diameter of the pipe is larger or the flow rate of the heat-carrying fluid is larger, the temperature measured between the upstream temperature sensor 3 and the downstream temperature sensor 4 using the structure of embodiment 1 The temperature difference will be very small, which is not conducive to collection and calculation. For better measurement, the large-diameter pipeline heat meter adopts a composite pipeline structure. In the main pipeline, a multiple tube 13 wrapped with an insulating material is set up, and the heat carrying heat flowing through the multiple tube Due to the thin pipe diameter and low flow rate of the fluid, the temperature changes at the upstream 3 and downstream 4 are relatively large. A temperatu...

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Abstract

The invention belongs to the technical fields of heat supply and heating and relates to a calorimeter signal acquisition device. The calorimeter signal acquisition device comprises a heat conducting unit and two temperature sensors, wherein the heat conducting unit is provided with two end faces; one end face of the heat conducting unit is in contact with a heat-carrying fluid and is called heat collecting surface, and the other end face of the heat conducting unit is provided with a heat radiator and is called heat radiating surface; the outer surface of the entire heat conducting unit is provided with a heat preserving layer or an insulating layer apart from the two end faces; the heat conducting unit comprises a sensor for measuring a heat flow relevant signal between the two end faces; and the two temperature sensors are used for measuring the temperature change of the heat-carrying fluid which flows through the heat collecting surface. The invention further provides two kinds of calorimeters having the signal acquisition device and provides a method for computing heat amount. The calorimeters and the signal acquisition device provided by the invention have the advantages of high measuring accuracy, large measurement range, high low-flow-speed accuracy, simple structure and low cost.

Description

technical field [0001] The invention belongs to the technical field of heating and heating, and relates to a heat meter. Background technique [0002] Existing heat meters are mainly composed of flowmeters and temperature sensors, and heat meters can be classified into electromagnetic and ultrasonic, mechanical and differential pressure types according to different measurement methods of flowmeters. Among them, the mechanical type has the advantages of less power consumption, good anti-interference, convenient installation and maintenance, and low price, so it is widely used now, such as France and Germany, the proportion of mechanical flowmeters is as high as 90%, but mechanical meters are in When there are many impurities in the water, the accuracy will be greatly affected. The ultrasonic type is characterized by large measuring range, high measurement accuracy, and less pressure loss, but it is easily affected by the degree of corrosion of the pipe wall, the content of f...

Claims

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Application Information

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IPC IPC(8): G01K17/12
Inventor 凌子龙
Owner 凌子龙
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