Method for measuring effective heat for storied buildings heat supplied through monotube cascaded type

A measurement method and effective heat technology, applied in the direction of measuring heat, calorimeters, measuring devices, etc., can solve the problems of large measurement errors, errors, and inability to accurately reflect the quantity and quality of heat supplied by users, and achieve economical improvement. The effect of overcoming the large effective thermal error

Inactive Publication Date: 2007-05-09
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the single-pipe series pipeline belongs to the household open-loop heating pipeline structure, there are inherent technical defects in the measurement of the heat distribution meter, that is, the measurement error is very large, and the error of measuring the heat supply of the user is usually between 20-40%. The measurement of heat supply is the basis of effective heat measurement, and the large error of measurement of heat supply will inevitably lead to the large error of effective heat measurement, which makes it difficult to reflect the accuracy of heat supply measurement, and cannot accurately reflect the The quantity and quality of heat supply, which is very unfavorable to the implementation of heat metering as an energy-saving and environmental protection measure

Method used

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  • Method for measuring effective heat for storied buildings heat supplied through monotube cascaded type
  • Method for measuring effective heat for storied buildings heat supplied through monotube cascaded type
  • Method for measuring effective heat for storied buildings heat supplied through monotube cascaded type

Examples

Experimental program
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Effect test

Embodiment 1

[0015] In this embodiment, in a five-story single-tube tandem heating building (Figure 1), the effective heat metering method of a single-tube tandem heating building is applied.

[0016] In this embodiment, each user's radiator adopts a single-pipe downstream connection method, and adopts a top-supply and bottom-back heating method. Each user has two rooms, and each room runs through two water supply risers 3, and Two heating radiators 5 form a heating metering area. A flow measuring point 2 and ten temperature measuring points 1 are arranged on each water supply standpipe 3 and on the crossover pipe of the radiator 5 connected to it. The flow measuring point 2 is arranged at the water supply stand that leaves the user 8 on the first floor. The temperature measuring point 1 is arranged on the pipe and the water inlet and outlet pipes of the radiator 5 of each user 8 respectively. Through these measuring points, the flow rate of the water supply standpipe and the temperature of th...

Embodiment 2

[0020] In this embodiment, in a five-story single-tube series heating building, the effective heat measurement method of a single-tube series heating building is applied.

[0021] This embodiment is a five-story building with a single-tube series heating building (Figure 2). It is characterized in that the user radiator on the fifth floor is connected by a single-tube downstream cross-flow, and the user radiators on the other floors are all connected A single-pipe downstream connection method is adopted, and the upper supply and lower return heating method is adopted. This embodiment consists of five users 8 who live on the first to fifth floors. Each user has two rooms. Each room runs through two water supply risers 3 and has two heating radiators 5 to form a heating system. Metering area. 1 flow measuring point and 10 temperature measuring points are arranged on each water supply riser 3 and the cross connecting pipe of the radiator 5 connected to it: the flow measuring point 2 ...

Embodiment 3

[0025] In this embodiment, in a five-story single-tube series heating building, the effective heat measurement method of a single-tube series heating building is applied.

[0026] This embodiment is a five-story building of a single-pipe series heating building (Figure 3), which is characterized by the direct three-way flow regulating valve arranged in front of the user radiator, and a single-pipe downstream cross-flow connection is adopted. The method adopts the top-supply and bottom-back heating method. This embodiment consists of five users 8 who live on the first to fifth floors. Each user has two rooms. Each room runs through two water supply risers 3 and has two heating radiators 5 to form a heating system. Metering area. 1 flow measuring point and 10 temperature measuring points are arranged on each water supply standpipe 3 and the connected radiator 5 cross pipe: flow measuring point 2 is arranged on the water supply standpipe away from the first layer of users. The measur...

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Abstract

A method for metering heat supply of single pipe series type on building includes measuring flow rate of single pipe series heat supply, water flow temperature at water inlet and water outlet of each user as well as ambient temperature outdoors then calculating out effective heat provided by heat radiator on single pipe series heat supply system at each user for realizing an accurate metering on heat supply.

Description

(1) Technical field: [0001] The invention belongs to the field of building heat supply metering, and relates to an effective heat metering method for a single-tube series heating building. (2) Background technology [0002] For residential and public buildings with a single-pipe series-pipe structure, the current household heating measurement method is to use a heat distribution meter measurement method, that is, a heat distribution meter must be installed on each heating radiator in the user's room, and then Based on the data of the regional heating total heat meter, the data of the user heat distribution table is used as the weight to allocate the heat supply of each user. The heat distribution table determines the heat supply to the room based on the average surface temperature of the heating radiator, the average indoor temperature, the surface area of ​​the heating radiator, the type and model of the heating radiator, and the heat transfer coefficient of the heating radiator...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K17/08
Inventor 李世武
Owner NORTHWESTERN POLYTECHNICAL UNIV
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