CN202731234U

CN202731234U - Building smoke shaft

Info

Publication number: CN202731234U
Application number: CN 201220343450
Authority: CN
Inventors: 邵三虎; 武宏艳; 曾凌云
Original assignee: SUZHOU MUNICIPAL ENGINEERING DESIGN INSTITUTE Co Ltd
Current assignee: Know (suzhou) Prospective Design Consultant Co Ltd
Priority date: 2012-07-16
Filing date: 2012-07-16
Publication date: 2013-02-13
Anticipated expiration: 2022-07-16

Abstract

The utility model discloses a building smoke shaft, which comprises a shaft main body, a smoke flue and unpowered exhaust fans. The smoke flue is vertically arranged in the shaft main body. A plurality of range hoods are arranged on the exterior wall of the shaft main body. The range hoods are communicated with the smoke flue. The cross section of the smoke flue is gradually reduced from top to bottom. The building smoke shaft has the advantages of good smoke exhaust evenness and better smoke exhaust effect.

Description

A kind of residence discharge vertical shaft

Technical field

The utility model relates to a kind of residence discharge vertical shaft, particularly relates to a kind of residence discharge vertical shaft of unpowered induction type.

Background technology

According to relevant regulations, high residential building class building kitchen flue gas is wanted organized smoke evacuation, mostly adopt at present smoke shaft to discharge fume, existing smoke shaft all adopts the smoke vent of rectangle section of constant cross section, each layer flue gas sent into by smoke exhaust in the smoke vent of smoke shaft, naturally drains into outdoor by the smoke vent opening on the roofing again.There is certain defective in this fume exhausting type:

Smoke shaft is owing to be subjected to the impact of kitchen building area, do not take into full account the fluid behaviour of smoke shaft structure and cooking fume, smoke vent opening is not taked corresponding measure yet, thus actual be a kind of extrusion type smoke shaft, because flue is in barotropic state all the time, cross-sectional area is less, and therefore smoke evacuation is short of power, and each layer smoke evacuation is inhomogeneous, above which floor the smoke evacuation smooth and easy, below which floor exhaust smoke level inadequate, and then produce each layer phenomenon of collaborating, be difficult to reach sanitary standard.

The utility model content

The technical problems to be solved in the utility model provides a kind of residence discharge vertical shaft, and smoke evacuation is even, and smoke discharging effect is better.

For solving the problems of the technologies described above, the technical solution of the utility model is:

A kind of residence discharge vertical shaft comprises shaft main body, flue, and described flue vertically is arranged at the inside of shaft main body, and the outer wall of described shaft main body is provided with a plurality of smoke exhausts, and described a plurality of smoke exhausts and flue link,

The cross section of described flue is gradually little from top to bottom.

As improvement, the utility model also comprises no-power air blower, and described no-power air blower is fixedly installed on the upper surface of the oral area of shaft main body, and described no-power air blower covers the oral area of flue.

According to fluid mechanics principle, static pressure was less when flow velocity was larger, so the cross section extension flow velocity in the gradually little flue capable of regulating flue from top to bottom, thereby kept the differential static pressure between each layer of smoke shaft identical, and namely each layer sucks exhaust smoke level and can be consistent.No-power air blower has changed the exhaust mode of smoke shaft, the turbine of no-power air blower can rotate by speed along with the flow velocity size of on every side air-flow and rising flue gas, thereby automatically regulate exhaust smoke level, draining in the flue impeller even without flue gas also can rotate along with air-flow on every side, in vertical shaft, form negative pressure, so that smoke can not go here and there to the kitchen, thereby improve smoke discharging effect, so that kitchen air quality reaches sanitary standard.

Therefore compared with prior art, the utility model has following beneficial effect:

Taken into full account the factor such as fluid behaviour, user's smoke exhaust mode of occupation of structure, the cooking fume of smoke shaft, can guarantee that each layer exhaust smoke level is even not increasing smoke shaft and take under the prerequisite of kitchen area, the phenomenon of not collaborating, increased exhaust smoke level, and can automatically regulate according to user's mode of occupation the size of exhaust smoke level, can improve like this smoke discharging effect in kitchen, improve kitchen air quality, reach sanitary standard; In addition, the utility model can reduce the opening time of oil-containing air exhauster for kitchen, need not outside resources, very energy-conserving and environment-protective.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of the application's a part, does not consist of to improper restriction of the present utility model, in the accompanying drawings:

Fig. 1 is the structural representation of the utility model embodiment.

The specific embodiment

Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to restriction of the present utility model.

Be illustrated in figure 1 as the embodiment of a kind of residence discharge vertical shaft described in the utility model, comprise shaft main body 1, flue 2, flue 2 vertically is arranged at the inside of shaft main body 1, the outer wall of shaft main body 1 is provided with a plurality of smoke exhausts 3, a plurality of smoke exhausts 3 link with flue 2, and the cross section of flue 2 is gradually little from top to bottom.

As improvement, present embodiment also comprises no-power air blower 4, and no-power air blower 4 is fixedly installed on the upper surface of the oral area of shaft main body 1, and no-power air blower 4 covers the oral area of flue 2.

More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, all will change on the specific embodiment and range of application, in sum, this description should not be construed as restriction of the present utility model.

Claims

1. residence discharge vertical shaft, comprise shaft main body, flue, described flue vertically is arranged at the inside of shaft main body, and the outer wall of described shaft main body is provided with a plurality of smoke exhausts, described a plurality of smoke exhaust and flue link, and it is characterized in that: the cross section of described flue is gradually little from top to bottom.

2. residence discharge vertical shaft according to claim 1, it is characterized in that: also comprise no-power air blower, described no-power air blower is fixedly installed on the upper surface of the oral area of shaft main body, and described no-power air blower covers the oral area of flue.