Automatic adjustment method and system for wind power balance of central air conditioning system

A centralized air-conditioning and automatic technology, applied in the field of air-conditioning adjustment, can solve problems such as the adjustment of the wind balance of the air-conditioning air system, the large gap between the air volume and the designed air volume, and the uneven cooling and heating of the air-conditioning end, so as to save labor costs and simplify cumbersome work. The effect of steps

Inactive Publication Date: 2020-12-04
SICHUAN INSITITUTE OF BUILDING RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, centralized air-conditioning systems have been widely used in various public buildings, but after operation, the air force of the centralized air-conditioning system is often unbalanced, and the actual air volume of each pipeline is quite different from the designed air volume, resulting in uneven cooling and heating of the air-conditioning terminals on the same floor. The phenomenon of large temperature gradients on different floors
[0003] Especially in the public areas of some commercial buildings, the central air-conditioning system used in them only did a trial run of the air-conditioning system when the project was completed. During the actual operation of the building in the later period, most of the air-conditioning systems did not adjust the wind balance of the air-conditioning system.
Therefore, in the cooling and heating season, there are often uneven heating and cooling in the public areas of each floor, which leads to complaints from merchants or customers
Under the advice of a third-party energy-saving consulting unit, a small number of owners of public buildings have gradually begun to adjust the wind balance of the air-conditioning system, but they still use traditional manual adjustments, and it is difficult to achieve a dynamic balance of the air-conditioning system

Method used

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  • Automatic adjustment method and system for wind power balance of central air conditioning system
  • Automatic adjustment method and system for wind power balance of central air conditioning system
  • Automatic adjustment method and system for wind power balance of central air conditioning system

Examples

Experimental program
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Effect test

Embodiment 1

[0053] An automatic adjustment method for wind force balance of a centralized air conditioning system, comprising a multi-level pipeline mechanism, each pipeline of each level of pipeline mechanism is connected to a plurality of parallel lower-level pipelines, and the adjustment method includes the following steps:

[0054] S1. Select the pipeline farthest from the fan;

[0055] S2. In the branch pipeline mechanism where the pipeline is located, adjust the air volume ratio of each pipeline, specifically including the following steps:

[0056] S21. Select the pipeline where the tuyere with the minimum air volume ratio is located as the reference tuyere;

[0057] S22. Select other pipelines except the reference air outlet, and adjust the air volume of the pipeline;

[0058] S23. When the air volume ratio of other pipelines is equal to the reference air outlet, stop the adjustment;

[0059] S3. Among the branch pipeline mechanisms at the same level as the branch pipeline mechan...

Embodiment 2

[0072] A central air-conditioning system wind balance automatic adjustment system, such as Figure 1-5 As shown, the system includes a multi-stage pipeline mechanism, each pipeline of the upper-level pipeline mechanism is connected to multiple parallel pipelines of the lower-level pipeline mechanism, and also includes an air flow meter 1, a regulating valve 2 and a centralized controller 3;

[0073] The air flow meter 1 is installed at the air outlet of the multi-stage pipeline mechanism and the main air pipe connected to the fan; the regulating valve 2 is installed on each pipe of the multi-stage pipeline mechanism, and the air flow meter 1 and the regulating valve 2 are connected with the centralized controller 3 connect;

[0074] The air flow meter 1 includes: a button module 101, which is used to input the design air volume of the pipeline; a processor 102, which is connected to the button module 101, receives the actual wind speed signal of the pipeline and converts it in...

Embodiment 3

[0094]In this embodiment, the method for automatically adjusting the wind force balance of the central air-conditioning system will be described in detail in combination with Embodiment 1 and Embodiment 2.

[0095] Such as figure 1 As shown, in this embodiment, the adjustment method is adapted to the three-level pipeline mechanism. The first-level pipeline mechanism is a first pipeline directly connected to the fan of the air conditioning system, that is, the main air duct. Valve 1 and air volume meter 1; the second-level pipeline mechanism is three second pipelines branched from the first pipeline, and the three second pipelines are respectively equipped with regulating valve 2, regulating valve 3 and regulating valve 4; the third pipeline mechanism is each The three third pipelines of the second pipeline branch have a total of nine pipelines, and the nine third pipelines are successively equipped with a regulating valve 21, a regulating valve 22, a regulating valve 23, a reg...

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Abstract

The invention discloses an automatic adjustment method and system for wind power balance of a central air conditioning system. The system comprises multiple levels of pipeline mechanisms, wherein eachpipeline in each level of pipeline mechanism is connected with a plurality of lower-level pipelines connected in parallel. According to the adjustment method, through grading adjustment, the air volume ratio of each pipeline is adjusted to meet a requirement, and the tedious steps of traditional manual wind power balance adjustment are reduced; meanwhile, manual expenditure for adjusting the windpower balance of an air conditioner is saved for an owner; and besides, the problem of wind power imbalance of an air conditioning wind system is solved, the problem of complaining of tenants (customers) caused by non-uniform heat and cold at the tail end of the air conditioner is solved, and a key effect is achieved on saving energy during operation of the air conditioner for the owner. According to the adjustment system, the air volume ratio of each pipelines is calculated through an air volume meter on the corresponding pipeline and is transmitted to a central controller, and the central controller performs processing and analysis to control an adjusting valve of each pipeline to adjust the air volume of the corresponding pipeline, so that the air volume ratios of the pipelines meet the requirements, and then the wind power of the central air conditioning wind system is balanced.

Description

technical field [0001] The invention relates to the field of air conditioning adjustment, in particular to an automatic adjustment method and system for wind force balance of a centralized air conditioning system. Background technique [0002] At present, centralized air-conditioning systems have been widely used in various public buildings, but after operation, the air force of the centralized air-conditioning system is often unbalanced, and the actual air volume of each pipeline is quite different from the designed air volume, resulting in uneven cooling and heating of the air-conditioning terminals on the same floor. The phenomenon of large temperature gradients on different floors. [0003] Especially in the public areas of some commercial buildings, the central air-conditioning system used in them only did a trial run of the air-conditioning system when the project was completed, and most of them did not adjust the wind balance of the air-conditioning system during the ...

Claims

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Application Information

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IPC IPC(8): F24F3/00F24F11/52F24F11/54F24F11/74F24F11/63F24F13/02
CPCF24F11/52F24F11/54F24F11/64F24F11/74
Inventor 高波倪吉许川于佳佳杨晓娇陈红林苏英杰
Owner SICHUAN INSITITUTE OF BUILDING RES
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