CN2786240Y

CN2786240Y - Lower air intake and variable pressure type exhaust passage

Info

Publication number: CN2786240Y
Application number: CN 200520000488
Authority: CN
Inventors: 林涛
Original assignee: BEIJING DULONG INTELLIGENT BUILDING COROLLARY EQUIPMENT Co Ltd
Current assignee: BEIJING DULONG INTELLIGENT BUILDING COROLLARY EQUIPMENT Co Ltd
Priority date: 2005-02-07
Filing date: 2005-02-07
Publication date: 2006-06-07
Anticipated expiration: 2015-02-07

Abstract

The utility model relates to a lower air intake and variable pressure type exhaust passage, which mainly comprises an exhaust pipeline [1], an air inlet [2] arranged on a pipe wall of the exhaust pipeline, an exhaust guide pipe [4] and a pressure variation component [5], wherein the air inlet [2] is communicated with an exhaust passage [3], and is lightly above or accordant or below the low position of a kitchen cooker position. The utility model solves the problems that the existing exhaust passage is not suitable for exhaust requirements of the low position of the oil fume of a lower exhaust type fume exhauster, the exhaust stoke of the oil smoke is long, resistance is big and the existing exhaust passage is adverse to exhaust foreign odor gas with large specific gravity in toilets. The utility model is mainly used for exhausting kitchen oil fume in each floor of buildings and the foreign odor gas in the toilets.

Description

Following air intake pressure variable exhausting channel

Technical field

The utility model relates to the building unit that assembles on a kind of building, particularly a kind of following air intake pressure variable exhausting channel that is used to discharge each floor kitchen oil flue gas of building and washroom waste gas.

Background technology

At present, the exhaust duct that generally uses in the building, mostly form by extract duct and air inlet port, but its air inlet port generally all is arranged on the top of extract duct, so that the mist extractor mouth of pipe of itself and last air-exhaust type smoke exhaust ventilator connects, because it is provided with the position too near top, therefore only be applicable to that the air-exhaust type smoke exhaust ventilator matches, when adopting down air-exhaust type oil-fume removing device in the kitchen, then need prolong the oil extraction smoke pipe, and be connected to its air inlet port place, so that oil smoke gas is arranged in extract duct from air inlet port, so both wasted material, increased oil smoke gas discharging stroke again, increase the mist extractor resistance indirectly, and be unfavorable for the discharging of oil smoke gas; Again since the washroom in the proportion that peculiar smell waste gas is arranged often greater than air specific weight, waste gas generally is in the lower space of lower position, and the air inlet port setting so just is unfavorable for the washroom toxic emission too by top, thereby it easily is trapped in the washroom, influences the bad smell removal detergent of washroom.Therefore, its weak point is, is not suitable for the actual needs of down air-exhaust type oil-fume removing device oil smoke gas low level discharging, also is unfavorable for the bad smell removal detergent of washroom.And because its extract duct be a straight pipe up and down, thereby make it exist oil smoke gas to be easy to refluence, each floor gap smoke blowing taint of odour phenomenon.

Summary of the invention

The purpose of this utility model is, overcome the deficiencies in the prior art, and a kind of suitable down air-exhaust type oil-fume removing device low level discharging oil smoke gas needs are provided, and do not produce each floor gap smoke blowing taint of odour phenomenon, help the following air intake pressure variable exhausting channel that smell and sanitation and hygiene are removed in the washroom.

In order to achieve the above object, the solution that the utility model is taked is, it comprises extract duct and the air inlet port that is arranged on its tube wall, described air inlet port is connected with the exhaust passage of described extract duct, be characterized in, it at least also comprises the exhaust guide pipe that is arranged on described extract duct inwall place and any one parts among the component for variable-pressure of described exhaust passage protrusions, the flow-guiding channel of described exhaust guide pipe is connected with described air inlet port, the fit structure that described component for variable-pressure and described oil smoke gas guide pipe formation narrow down the exhaust passage of described extract duct corresponding position.The residing position of described air inlet port a little more than, flush in or be lower than the residing position of kitchen kitchen range.

Say that further described air inlet port is arranged on the lower position near the described tube wall of described extract duct bottom.

Above-mentioned air inlet port is arranged on the lower position of extract duct tube wall, can make its easily with the kitchen in the oil extraction smoke pipe of down air-exhaust type oil-fume removing device connect, get final product and need not to set up to prolong to manage, thereby make its oil smoke gas discharging stroke shorter, resistance is also corresponding less.When being used for the washroom air draft, the air inlet port low level is provided with, and can make the gas with foreign flavor that has that is in lower position in the washroom take the lead in being discharged away, is very beneficial for the bad smell removal detergent of washroom.

The setting of described exhaust guide pipe and component for variable-pressure, then made full use of fluid when its flow is constant, cross-sectional flow area reduces, the principle that flow velocity will increase, the local air flow flow velocity is increased, cause above-mentioned air inlet port place to present negative pressure state, thereby prevent that effectively oil smoke gas from flowing backwards in each floor kitchen, thereby avoided the generation of each floor gap smoke blowing taint of odour phenomenon.

In order to prevent that oil smoke gas from flowing backwards, above-mentioned exhaust guide pipe preferably is provided with the unidirectional exhaust guide pipe of oil smoke gas flap valve.The structure of above-mentioned oil smoke gas flap valve is known by those of ordinary skill, no longer describes in detail herein.

Dock for the ease of its oil smoke gas discharge tube or gas discharge pipe with exhaust equipments such as down air-exhaust type oil-fume removing devices, no matter whether above-mentioned air inlet port is arranged on the tube wall lower position near the extract duct bottom, preferably it also comprises the mist extractor butt tube, described mist extractor butt tube fixedly installs or removably is assemblied in described air inlet port place, and its tube chamber is connected with described air inlet port and exhaust passage.

In order to discharge oil smoke gas or other waste gas more swimmingly, further clean oil flue gas, reduce of the pollution of oil smoke gas to outside air, when it is provided with above-mentioned oil extraction smoke pipe, no matter it adopts above-mentioned which kind of structure, best the utility model at least also comprises any one parts among exhaust blower and the oil smoke gas screen pack, and described exhaust blower is arranged on the described mist extractor butt tube, and described oil smoke gas screen pack is fixed or is removably disposed in the described mist extractor butt tube inner chamber.

Cleaning and maintenance for the ease of above-mentioned oil smoke gas screen pack, preferably with in the plug-in card seam of the removably airtight plug-in card of described oil smoke gas screen pack on described mist extractor butt tube, and constitute with described mist extractor butt tube can the relative detachable assembly structure that it is extracted and inserts.

In the washroom, use or in the kitchen, be used to strengthen mist extractor strength for the ease of it, no matter whether above-mentioned air inlet port is arranged on the tube wall lower position near the extract duct bottom, also no matter whether it also comprises parts among exhaust guide pipe and the component for variable-pressure, the utility model preferably also comprises exhaust blower or exhaust fan, and described exhaust blower, exhaust fan are arranged on described air inlet port place.

Because the utility model has adopted said structure, the low level setting of air inlet port, being convenient to it docks with the oil extraction smoke pipe of down air-exhaust type oil-fume removing device, both need not to set up to prolong and managed, raw material have been saved, reduce oil smoke gas exhaust resistance again, helped the smooth discharging of oil smoke gas, also helped being in the washroom discharging that gas with foreign flavor is arranged and the sanitation and hygiene of lower position; The setting of exhaust guide pipe and component for variable-pressure makes its air inlet port place be negative pressure state, can prevent effectively that waste gas such as oil smoke gas from flowing backwards to each floor; Setting up of exhaust blower become extract duct to have the active exhaust duct of gas discharging power source, can make waste gas such as oil smoke gas be forced to discharge; The setting of oil smoke gas screen pack, effectively a part of oil smoke impurity in the filtering oil smoke gas has further reduced the pollution of oil smoke gas to outside air; The cleaning and the maintenance of oil smoke gas screen pack are convenient in the employing that oil smoke gas screen pack can be extracted assembly structure more, and be easy to use.Therefore, the utlity model has and adapt to down air-exhaust type oil-fume removing device oil smoke gas low level discharging needs, oil smoke gas discharging stroke is short, resistance is little, oil smoke gas discharge efficiency height, can effectively reduce oil smoke gas to outside air pollution, and oil smoke gas screen pack is convenient to dismounting, cleans and safeguards that use is advantage comparatively easily.

Description of drawings

Fig. 1 is embodiment 1 a described structural representation of the present utility model;

Fig. 2 is embodiment 2 described structural representations of the present utility model;

Fig. 3 is embodiment 3 described structural representations of the present utility model;

Fig. 4 is embodiment 4 described structural representations of the present utility model;

Fig. 5 is embodiment 5 described structural representations of the present utility model;

Fig. 6 is embodiment 6 described partial structurtes schematic diagrames of the present utility model.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described.

Embodiment 1, in structural representation shown in Figure 1, the utility model comprises extract duct 1 and the air inlet port 2 that is arranged on its tube wall, described air inlet port 2 is connected with exhaust passage 3 in the described extract duct 1, the utility model also comprises the exhaust guide pipe 4 that is arranged on described extract duct 1 inwall place and to the component for variable-pressure 5 of described exhaust passage 3 protrusions, the flow-guiding channel of described exhaust guide pipe 4 is connected with described air inlet port 2, described component for variable-pressure 5 is positioned at the extract duct 1 inwall place on described exhaust guide pipe 4 opposites, constitutes the fit structure that the exhaust passage 3 that makes extract duct 1 narrows down with exhaust guide pipe 4.Described air inlet port 2 residing positions flush in the residing position of kitchen kitchen range, and promptly described air inlet port 2 is arranged on the lower position near the described tube wall of described extract duct 1 bottom.In Fig. 1, component for variable-pressure 5 be one by lower guide stream interface, vertically gas communication face, upper guide stream interface and corresponding two parts that the side constitutes thereof, its upper guide stream interface present position is a little more than the residing position of exhaust guide pipe 4 exhaust openings.Certainly, component for variable-pressure 5 adopts other when the structure of exhaust passage 3 protrusions, also belongs to protection domain of the present utility model.

Embodiment 2, and the utility model is except having additional the mist extractor butt tube, and other structure is all described identical with embodiment 1.In schematic diagram shown in Figure 2, the utility model also comprises mist extractor butt tube 6, described mist extractor butt tube 6 removably is assemblied in described air inlet port 2 places, its tube chamber is connected with described air inlet port 2 and exhaust passage 3, at the inwall place of extract duct 1, be provided with exhaust guide pipe 4 and component for variable-pressure 5.

Embodiment 3, and the utility model is except having additional exhaust blower, and other structure is all identical with embodiment 2 described structures.In schematic diagram shown in Figure 3, the utility model also comprises exhaust blower 7, exhaust blower 7 is arranged on the mist extractor butt tube 6 that is assemblied in air inlet port 2 places, and the tube chamber of its wind exhausting outlet and mist extractor butt tube 6 all is connected with the air inlet port 2 and the exhaust passage 3 of extract duct 1.

Embodiment 4, and the utility model is except being provided with oil smoke gas screen pack, and other structure is all described identical with embodiment 3.In schematic diagram shown in Figure 4, the utility model also comprises oil smoke gas screen pack 8, oil smoke gas screen pack 8 is removably disposed in the tube chamber of mist extractor butt tube 6, exhaust blower 7 is arranged on the mist extractor butt tube 6, the tube chamber of its wind exhausting outlet and mist extractor butt tube 6 all is connected with the air inlet port 2 and the exhaust passage 3 of extract duct 1.Herein, the material of oil smoke gas screen pack 8 is a nonwoven, when it adopts other material to make certainly, also belongs to protection domain of the present utility model.

Embodiment 5, and the utility model is except the exhaust guide pipe structure that is provided with changes to some extent, and other structure is all identical with embodiment 4 described structures.In schematic diagram shown in Figure 5, the utility model comprises extract duct 1, air inlet port 2, mist extractor butt tube 6, exhaust blower 7 and oil smoke gas screen pack 8, and the utility model also comprises the exhaust guide pipe 4 that is arranged on extract duct 1 inwall place and to the component for variable-pressure 5 of exhaust passage 3 protrusions.Exhaust guide pipe 4 is unidirectional exhaust guide pipes that are provided with oil smoke gas flap valve 9, the valve plate of oil smoke gas flap valve 9 is to overturn to oil smoke gas emission direction, and then open flow-guiding channel can automatically reset valve plate, its flow-guiding channel is connected with air inlet port 2, component for variable-pressure 5 is positioned at the inwall place of the extract duct 1 on exhaust guide pipe 4 opposites, and gas channel cross-sectional area is between the two reduced to some extent.The structure of component for variable-pressure 5 is identical with embodiment 1 described structure herein, no longer describes in detail herein.

Embodiment 6, and the utility model is except the mounting means of oil smoke gas screen pack changes to some extent, and other structure is all identical with embodiment 5 described structures.In partial schematic diagram shown in Figure 6, oil smoke gas screen pack 8 of the present utility model is inserted in the tube chamber of mist extractor butt tube 6 hermetically, play the effect of filtration, purification oil smoke gas, above-mentioned oil smoke gas screen pack 8 needs to clean or during maintenance, then only needs it is extracted from mist extractor butt tube 6 to get final product.

Certain exhaust blower of the present utility model or exhaust fan directly are assemblied in the structure at above-mentioned air inlet port 2 places, also belong to protection domain of the present utility model.

Protection domain of the present utility model is as the criterion with claims, and is not subjected to the restriction of the various embodiments described above and accompanying drawing.

Claims

1, a kind of air intake pressure variable exhausting channel down, it comprises extract duct [1] and is arranged on air inlet port [2] on its tube wall, described air inlet port [2] is connected with the exhaust passage [3] of described extract duct [1], it is characterized in that, it at least also comprises exhaust guide pipe [4] and any one parts among the component for variable-pressure [5] of described exhaust passage [3] protrusions that are arranged on described extract duct [1] inwall place, the flow-guiding channel of described exhaust guide pipe [4] is connected with described air inlet port [2], described component for variable-pressure [5] and described oil smoke gas guide pipe [4] constitute the fit structure that the exhaust passage that makes described extract duct [1] corresponding position narrows down, the residing position of described air inlet port [2] a little more than, flush in or be lower than the residing position of kitchen kitchen range.

2, air intake pressure variable exhausting channel down according to claim 1 is characterized in that, described air inlet port [2] is arranged on the lower position near the described tube wall of described extract duct [1] bottom.

3, air intake pressure variable exhausting channel down according to claim 1 and 2, it is characterized in that, it also comprises mist extractor butt tube [6], described mist extractor butt tube [6] fixedly installs or removably is assemblied in described air inlet port [2] and locates, and its tube chamber is connected with described air inlet port [2] and exhaust passage [3].

4, air intake pressure variable exhausting channel down according to claim 3, it is characterized in that, it at least also comprises any one parts among exhaust blower [7] and the oil smoke gas screen pack [8], described exhaust blower [7] is arranged on the described mist extractor butt tube [6], and described oil smoke gas screen pack [8] is fixed or is removably disposed in described mist extractor butt tube [6] inner chamber.

5, air intake pressure variable exhausting channel down according to claim 4, it is characterized in that, in the plug-in card seam of the removably airtight plug-in card of described oil smoke gas screen pack [8] on described mist extractor butt tube [6], and constitute with described mist extractor butt tube [6] can the relative detachable assembly structure that it is extracted and inserts.

6, air intake pressure variable exhausting channel down according to claim 1 and 2 is characterized in that it also comprises exhaust blower [7] or exhaust fan, and described exhaust blower [7], exhaust fan are arranged on described air inlet port [2] and locate.

7, air intake pressure variable exhausting channel down according to claim 1 is characterized in that described exhaust guide pipe [4] is the unidirectional exhaust guide pipe that is provided with oil smoke gas flap valve.