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Combined fresh air module

A combined, fresh air technology, used in ventilation systems, heating methods, space heating and ventilation, etc., can solve problems such as room temperature and humidity fluctuations, secondary pollution, and fresh air not coming in, saving equipment resources and ensuring stability. Sex, the effect of removing the vortex

Pending Publication Date: 2022-07-12
广州万二二麦工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Since the spring of 2020, the simplified version of the "fresh air system" assembled by developers on new buildings, compared with the residential air supply and exhaust two-in-one modular unit and its driven two-way flow air supply and exhaust system shown in the picture above, It has been greatly simplified. Most of them are an air supply fan module plus PVC air supply pipes on the ceiling to connect each room. They are all cecum-style one-way flow, and do not have fresh air pressurized and dirty air. The actual effect of "two-way flow" of pressure collection, boost discharge and synchronous operation; because the processing precision of doors and windows is very high, the airtightness is already very good, if there is no room with doors and windows open to cooperate with the dirty air, the exhaust cannot be discharged, and the fresh air cannot be sent in.
[0012] First of all, the system violates the basic principle of "two-way flow" of ventilation, relying on the occasional air leakage from the outside doors and windows of the room to discharge the dirty air to free up the fresh air to enter the required space. do not come in problem;
[0013] Secondly, the high-temperature and high-humidity fresh air in summer has not been cooled and dehumidified, and the fresh air will condense on the inner wall of the air supply pipe, attach dust and microorganisms, and even become a space for bedbugs and cockroaches to cause secondary pollution;
[0014] Third, occasionally a room’s outer door and window are opened, and the dirty air leaks out and the fresh air takes the opportunity to make up for it. The outdoor air temperature and humidity deviate from the normal value, especially in severe cold and severe seasons, which brings about large fluctuations in room temperature and humidity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Please refer to Figure 3 to Figure 6 , a combined fresh air module, applied to a group of rooms in a building, which includes a front air inlet device 1, a header 2 and a room fan coil unit 3 connected in sequence, and the header 2 is a hollow structure, such as a header 2. The body can be made of 1.2-1.5mm cold-rolled sheet or aluminum sheet after punching, bending and riveting, and then riveting with two end caps. Of course, this embodiment is not limited to cold-rolled sheet and aluminum sheet, but can also be pipes made of other materials. Since the header 2 is used to communicate the front air inlet device 1 and the room fan coil unit 3 , the header 2 is provided with an air inlet and an air outlet.

[0052] The front air inlet device 1 includes a casing and an air inlet fan, the casing is provided with a fresh air outlet, an air outlet and an air inlet channel connecting the fresh air outlet and the air outlet, and the air inlet fan is arranged at the In the air...

Embodiment 2

[0060] Header 2 is the core component of the combined fresh air module. It not only provides fresh air passages, but also decelerates and reduces noise in the header 2, changing from turbulent flow to laminar flow, preventing the fresh air flow from affecting the room fan in the form of high-speed jet turbulence. The fan impeller in the return air box 32 of the coil 3 produces impact and even disrupts the dynamic balance of the fan impeller, so that the fresh air flows into the return air box 32 of the room fan coil 3 in a low-speed laminar flow pattern of ≤3m / s.

[0061] This embodiment is further improved on the basis of Embodiment 1. Please refer to Figure 7 to Figure 10 In this embodiment, in order to effectively realize the above-mentioned function of “fresh air flow deceleration and noise reduction, from turbulent flow to laminar flow” of the header 2, an air distribution orifice plate 6 is arranged in the inner cavity of the header 2, and the air distribution orifice p...

Embodiment 3

[0063] This embodiment is further improved on the basis of Embodiment 2. The header 2 in the embodiment 1 is a long strip structure, the air ducts in the header 2 are arranged along the length direction of the header 2, and the air inlet of the header 2 communicated with the air duct in the header 2 is connected to the air inlet of the header 2. The air outlets are arranged in the length direction of the header 2, on both sides of the header 2 and staggered, that is, the room fan coil 3 and the front air inlet device 1 are also staggered and not on the same straight line.

[0064] Please refer to Figure 11 and Figure 12 , in this embodiment, the length of the header 2 is shortened, so that the air inlet of the header 2 is directly opposite to the air outlet, that is, the room fan coil 3 and the front air inlet device 1 are opposite (directly opposite), in the same in a straight line. The fresh air flow of the front air inlet device 1 has the characteristics of jet flow, a...

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PUM

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Abstract

The invention provides a combined fresh air module which comprises a front air inlet device, a header and a room fan coil which are sequentially connected, an air duct is arranged in the header, and the air duct is communicated with the front air inlet device and the room fan coil; an air inlet fan is arranged in the front air inlet device; during operation, outdoor fresh air is boosted by the air inlet fan and then is fed into the header, speed reduction, noise reduction and vortex elimination are performed in an air duct of the header, and the outdoor fresh air is fed into a room by the room fan coil.

Description

technical field [0001] The invention belongs to the technical field of fresh air systems, and in particular relates to a combined fresh air module. Background technique [0002] We spend most of our lives in residences, essentially living in the indoor secondary air environment enclosed by the walls and floors of the residences; carbon dioxide and excrement produced by human metabolism, oil smoke and water vapor discharged from cooking and bathing, Benzene and formaldehyde, etc., which are volatilized from interior decoration materials, lead to indoor air pollution. It is the original meaning of home life to introduce fresh air from the outside of the house into the house and discharge the indoor dirty air synchronously to realize the "two-way flow" fresh air replacement of the house. [0003] The deep integration technology of fresh air air conditioning and residential buildings is adopted to implement residential fresh air replacement and air conditioning, improve the sec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F7/003F24F7/06F24F13/28F24F13/02F24F13/24F24F11/64F24F1/0007F24F1/0035
CPCF24F7/003F24F7/06F24F13/28F24F13/02F24F13/24F24F11/64F24F1/0007F24F1/0035F24F2013/247Y02B30/70
Inventor 薛世山宗鹏鹏李成伟詹飞龙诸葛水明马骥韦林林王恒徐言先田志远刘金锁王庆伦
Owner 广州万二二麦工程技术有限公司
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