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Pipeline pressurizing device for fresh air system

A technology of pipeline pressurization and fresh air system, applied in ventilation system, pipeline layout, household heating and other directions, can solve the problems of increasing flow resistance, reducing quality of life, unable to change the small static pressure at the remote end, and reducing working pressure , the effect of reducing costs

Active Publication Date: 2021-03-23
东莞市华科环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For larger residences, the length of the uniformly installed fresh air ducts may reach tens of meters, and there are a large number of inflection points. , for the case where the pipeline is long and there are a large number of inflection points in the pipeline layout, resulting in increased flow resistance, the efficiency of pressure transmission will be reduced, and the efficiency of suction and discharge at the far end will still be lower than expected, and the fan with excessive power will be close to There is considerable airflow noise in the room duct of the fresh air machine. When resting at night, the airflow noise will make the room in a noisy environment for a long time and reduce the quality of life.
[0005] Chinese invention patent specification CN109681986A discloses a fresh air system, including a fan and an air flow channel. The system uses a Roots blower to improve the problem that the static pressure provided by a common fan is too small. High pressure still cannot change the problem of low static pressure at the far end and increased noise under high suction

Method used

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  • Pipeline pressurizing device for fresh air system
  • Pipeline pressurizing device for fresh air system
  • Pipeline pressurizing device for fresh air system

Examples

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Effect test

Embodiment 1

[0026] see Figure 1~3 , in Embodiment 1 of the present invention, a pipeline pressurization device for a fresh air system, including a fresh air pipeline 1, an installation pipe 2, a fixed pipe 4, a silent bearing 3, a fan mechanism 16, a gear sleeve 5, and a primary air cylinder 15. Secondary air cylinder 7, fan blade 6, transmission gear 13 and motor 10; said fan mechanism 16 includes primary air cylinder 15, secondary air cylinder 7 and fan blade 6, and said primary air cylinder 15 is socketed On the outside of the secondary air cylinder 7, multiple sets of uniformly distributed arc fan blades 6 are fixed between the primary air cylinder 15 and the secondary air cylinder 7; gear sleeves are fixed on the outside of the primary air cylinder 15 5. Both sides of the primary air cylinder 15 are fixedly connected with fixed pipes 4 with the same inner diameter as the primary air cylinder 15 .

[0027] After the device is put into use, in addition to being driven by the negative...

Embodiment 2

[0031] see Figure 1~3 , the main difference between this embodiment 2 and embodiment 1 is:

[0032] A streamlined wingtip 8 is fixedly attached to the front edge of the secondary air duct 7 and the fan blade 6 .

[0033] When in use, the streamlined wingtip 8 can effectively split the incoming flow, reduce the turbulence and noise caused by the incoming flow directly hitting the plane, and at the same time gently change the direction of the airflow, avoiding the increased airflow resistance caused by the plane question. The motor 10 of the device is installed outside the fresh air duct 1. When in use, the volume of the motor 10 will not become the internal resistance of the fresh air duct 1. At the same time, because it is installed outside, the difficulty of maintenance can be greatly reduced.

[0034] Because the secondary air duct 7 interior of this device is hollow, air-flow can directly flow through here, and the fan blade 6 that is fixedly connected to the secondary a...

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Abstract

The invention discloses a pipeline pressurizing device for a fresh air system and relates to the technical field of fresh air systems. The pipeline pressurizing device comprises a fresh air pipeline,a mounting pipe, fixing pipes, a mute bearing, a fan mechanism, a gear sleeve, a first-stage air duct, a second-stage air duct, fan blades, a transmission gear and a motor. The fan mechanism comprisesthe first-stage air duct, the second-stage air duct and the fan blades, the first-stage air duct is connected to the outer side of the second-stage air duct in a sleeving mode, and the multiple setsof arc-shaped fan blades which are evenly distributed are fixedly connected between the first-stage air duct and the second-stage air duct. A gear sleeve is fixedly connected to the outer side of thefirst-stage air duct, and the fixing pipes with the same inner diameter as the first-stage air duct are fixedly connected to the two sides of the first-stage air duct. The pipeline pressurizing deviceis mounted in a fresh air pipeline, airflow in the fresh air pipeline can be pressurized, the burden of a main fan is shared, the cost is reduced, the working efficiency is improved, the flowing quality is improved, and noise is reduced.

Description

technical field [0001] The invention relates to the technical field of fresh air systems, in particular to a pipeline pressurization device for fresh air systems. Background technique [0002] The fresh air system is a system used to exchange the air inside and outside the closed room, and at the same time purify the air supplied to the interior. The fresh air system can effectively improve the indoor air quality and reduce indoor dust. Under the condition of continuous intrusion of fresh air, the fresh air system can provide indoor local spaces with high air quality when the outdoor air environment is crossed, which has a great effect on improving people's living environment. [0003] Generally, for the space where the decoration has been completed, the fresh air system in Houjie often uses an all-in-one machine, that is, fresh air equipment that does not need to install pipes, and the air outlet and air inlet are installed on the all-in-one machine. lower. The other is t...

Claims

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Application Information

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IPC IPC(8): F24F7/06F24F13/02F24F13/24
CPCF24F7/065F24F13/02F24F13/24F24F2013/247
Inventor 陈泽烽
Owner 东莞市华科环境科技有限公司
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