CN201924565U - Splayed variable pressure structure for centralized cooking fume exhaust pipe of residential kitchen - Google Patents

Splayed variable pressure structure for centralized cooking fume exhaust pipe of residential kitchen Download PDF

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Publication number
CN201924565U
CN201924565U CN2010206861425U CN201020686142U CN201924565U CN 201924565 U CN201924565 U CN 201924565U CN 2010206861425 U CN2010206861425 U CN 2010206861425U CN 201020686142 U CN201020686142 U CN 201020686142U CN 201924565 U CN201924565 U CN 201924565U
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variable pressure
splayed
variable
pressure structure
pipe
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宋钰凤
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Jiangsu Province Ziwei Building Technology Institute Co., Ltd.
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NANJING CITY ZIWEI NOVEL BUILDING MATERIAL INDUSTRY Co Ltd
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Abstract

The utility model discloses a splayed variable pressure structure for a centralized cooking fume exhaust pipe of a residential kitchen. At least one splayed variable pressure structure is arranged in the centralized cooking fume exhaust pipe of the residential kitchen and comprises two variable pressure plates which are distributed in a splayed shape, and fixing pieces are arranged on the two variable pressure plates. The splayed variable pressure structure has simple structure, long life and low manufacturing cost, is convenient to install and use and is environment-friendly and economical. In addition, the splayed variable pressure structure meets the national construction industrial standard JG/T194-2006, effectively solves the problems of fume swirl, gas curtain blockage, fume flowing backward and taint by fume and odor, and also overcomes the difficult problems of pipe blocking caused by excessive guide and variable pressure parts, large occupied space, complexity in installation and easiness in falling in the traditional pipe; and the splayed variable pressure structure has promising economic prospects and can bring about good social benefits.

Description

House kitchen is concentrated the splay configuration transformation structure of oil extraction smoke pipe
Technical field
The utility model relates to a kind of house kitchen central exhaust tubular structure, is specifically related to the splay configuration transformation structure that house kitchen is concentrated the oil extraction smoke pipe.
Background technology
Existing esidential building kitchen exhaust road, be generally and adopt concrete prefabricated property global formation, the fire endurance performance of the concrete prefabricated flue of global formation did not reach 1.0 hours substantially, because kitchen exhaust temperature height, greasy dirt are many, this pipeline in use, the accumulation of flue greasy dirt with the passing of time just becomes disaster hidden-trouble, and the thickness of pipe wall of concrete prefabricated smoke vent is generally 1 ~ 1.5cm, its vertical bearing capacity and anti-soft impulse poor performance.In People's Republic of China's construction industry industry standard " house kitchen washroom exhaust duct " (JG/T194-2006), stipulated the standard of house kitchen smoke vent, except will satisfying presentation quality, size and morpheme allowable variation, also spell out vertical bearing capacity and should or not be lower than 1.00h and anti-soft impulse performance is not less than the 10kg sandbag 1 meter requirement of impacting 5 times highly downwards less than 90kN, fire endurance.Disclose a kind of formula exhast duct in CN201391074Y, its air draft guidance tape is made with cement mortar, and the fire endurance performance is lower than 1.0 hours, and its inside is empty tube, not have to solve at all the eddy current air curtain cause about smoke blowing taint of odour problem between the floor resident family show.In CN201531107U, open internal schema fireproof kitchen-toilet smoke vent, this smoke vent is by two housing long slabs, inner membrance and reinforcing rib are formed, if the ventilating duct of this form of structure is applied to the dwelling house mist extractor, if the smog of a large number of users pours in pipeline, under actual service conditions, because the effect of smoke exhaust, the static pressure ratio of flue inside is higher, do not have to solve up and down the flue gas between the floor resident family pours in down a chimney and smoke blowing taint of odour problem at all, when the air inlet port flue gas entered in the flue, the flue gas that meeting and lower floor up arrange met, and two strands of air-flows are met and get along well mutually and formed eddy current and air curtain, this eddy current and air curtain can hinder the up generation of lower floor's flue gas, open when malfunctioning in case the air inlet port flap valve is clung by greasy dirt, flue gas has an obstruction because of up, just can be to indoor smoke blowing.
In CN1142353C, a kind of pressure swing type exhaust duct structure is disclosed, the gentle rheology pressure part of smoke evacuation guide pipe is set in pipeline, solved the stream swirl phenomenon this structure division, but because interior water conservancy diversion of pipeline and component for variable-pressure are too much, it is big to take up space, and installs complicated, easily come off, cause line clogging, can't satisfy user demand fully.
In CN2459389Y, have only place pressurization, produce and hinder to lower floor's exhaust that makes progress, when solving the air whirl problem, make lower floor's exhaust produce again and hinder, can not satisfy user demand fully.
Summary of the invention
Goal of the invention: at the deficiencies in the prior art, the purpose of this utility model provides the splay configuration transformation structure that a kind of house kitchen is concentrated the oil extraction smoke pipe, to realize both having satisfied the regulation of national sector standard JG/T194-2006, can effectively solve again air whirl to the obstruction and the flue gas of the up generation of lower floor's flue gas pour in down a chimney, smoke blowing taint of odour problem phenomenon, also overcome simultaneously in the past pipe interior water conservancy diversion and transformation member too much, take up space big, install complicated, easily come off and cause the difficult problem of line clogging.
Technical scheme: in order to realize the foregoing invention purpose, the technical solution adopted in the utility model is:
A kind of house kitchen is concentrated the splay configuration transformation structure of oil extraction smoke pipe, is provided with one group of splay configuration transformation structure in described oil extraction smoke pipe at least; Described splay configuration transformation structure comprises and is arranged in splay 2 variable-pressure plates, forms 3 transformation exhaust openings at least between described 2 variable-pressure plates and oil extraction smoke pipe.
Described 2 variable-pressure plates are provided with fixture.
Described fixture is plate or post, and described plate or post are arranged between 2 variable-pressure plates.
Described fixture is plate or post, and described plate or post are arranged between variable-pressure plate and the tube wall.
Described house kitchen is concentrated the splay configuration transformation structure of oil extraction smoke pipe to be used for house kitchen and is concentrated oil-smoke expulsion pipe.
House kitchen of the present utility model is concentrated the splay configuration transformation structure of oil extraction smoke pipe, dwindle in cross section, the inner splay configuration transformation structure place of oil extraction smoke pipe suddenly, because fluid bernoulli equation phenomenon, can accelerate flow velocity, three transformation exhaust ports of A in flue, B, C produce pulls out gas effect and negative pressure draft, the flue gas accelerated motion that makes progress in the guiding flue.According to aerodynamic dynamic and static pressure transfer principle, if under the constant situation of total head, dynamic pressure and static pressure are to transform mutually, dynamic pressure reduces, static pressure raises, we take the A of inner splay configuration transformation structure, B, the mode that three transformation exhaust ports of C cross section dwindles suddenly, increase gas flow speed and increase dynamic pressure, reduce static pressure, make full use of aerodynamics dynamic pressure and static pressure transfer principle, can effectively eliminate air whirl, air curtain is finished the conversion of dynamic pressure and static pressure to the retardance of the up generation of lower floor's flue gas with at ad-hoc location, makes not open the kitchen exhaust mouth place static pressure of smoke exhaust ventilator very little even be negative pressure, forms draft and eliminates smoke blowing taint of odour phenomenon.Thereby the retardance and the flue gas that can solve air whirl, air curtain effectively pour in down a chimney and smoke blowing taint of odour problem, also overcome simultaneously in the past pipe interior water conservancy diversion and transformation member too much, take up space big, install complicated, easily come off and cause the difficult problem of line clogging.
Beneficial effect: house kitchen of the present utility model is concentrated the splay configuration transformation structure of oil extraction smoke pipe, and simple in structure, easy to install and use, the life-span is long, and cost is low, i.e. environmental protection is economical again.In the requirement of satisfying national construction industry industry standard JG/T194-2006 simultaneously, the retardance and the flue gas that can effectively solve air whirl, air curtain again pour in down a chimney and smoke blowing taint of odour problem, also overcome in the past pipe interior water conservancy diversion and transformation member too much, take up space big, install complicated, easily come off and cause the difficult problem of line clogging, have good economic outlook, can produce good social benefit.
Description of drawings
Fig. 1 is the part perspective view that house kitchen is concentrated the splay configuration transformation structure of oil extraction smoke pipe.
Fig. 2 is first kind of form of structure schematic diagram of splay configuration transformation structure.
Fig. 3 is second kind of form of structure schematic diagram of splay configuration transformation structure.
Fig. 4 is the third form of structure schematic diagram of splay configuration transformation structure.
Fig. 5 is the 4th a kind of form of structure schematic diagram of splay configuration transformation structure.
Fig. 6 to Fig. 8 concentrates the variable pressure gas schematic diagram of the splay configuration transformation structure of oil extraction smoke pipe for house kitchen.
Fig. 9 is a fixture when being plate, is arranged on the structural representation between variable-pressure plate and the tube wall.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further explained.
As shown in Figure 1, concentrate the splay configuration transformation structure of oil extraction smoke pipe for house kitchen of the present utility model.This splay configuration pressure swing type house kitchen is concentrated the oil extraction smoke pipe, and preferential the employing by what fire endurance was not less than 1.00h do not fired the combined pipeline that plate constitutes, and also can be globality moulding pipeline.In oil-smoke expulsion pipe 1, be provided with one group of splay configuration transformation structure 2 that is used for the air transformation of forming by two variable-pressure plates at least at least.
Splay configuration transformation structure 2 is for mainly constituting by being arranged in splay 2 variable-pressure plates 21, forms 3 transformation exhaust opening A, B and C at least between 2 variable-pressure plates 21 and the oil-smoke expulsion pipe 1, as Fig. 6, Fig. 7 and shown in Figure 8.2 variable-pressure plates 21 are provided with fixture 22.Fixture 22 intersects with plate, and as Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, the angle of cross angle α is 0 °<α<180 °.The size of fixture must if the size of fixture is identical with caliber, then can cause transformation exhaust opening A and C to block less than caliber, influences the transformation exhaust effect.
As shown in Figure 2, fixture 22 can be plate, and plate is connected between variable-pressure plate and the tube wall, and setting is all arranged between every variable-pressure plate and tube wall.Plate also can be connected between 2 variable-pressure plates 21, as shown in Figure 3.
As shown in Figure 4, fixture 22 can be post, and post is connected between variable-pressure plate 21 and the tube wall, and setting is all arranged between every variable-pressure plate 21 and tube wall.Post also can be connected between 2 variable-pressure plates 21, as shown in Figure 5.
As shown in Figure 9, splay configuration transformation structure 2 can respectively be provided with a fixed head at the upper and lower side of splay configuration transformation structure 2 in being fit into oil-smoke expulsion pipe 1 time, splay configuration transformation structure 2 is snapped in the oil-smoke expulsion pipe 1 fix, and is easy for installation so simple.
House kitchen of the present utility model is concentrated the splay configuration transformation structure of oil extraction smoke pipe to be used for house kitchen and is concentrated oil-smoke expulsion pipe.
Splay configuration transformation structure of the present utility model adopts intermittently and is provided with, dwindle in cross section, the inner splay configuration transformation structure place of oil-smoke expulsion pipe, because fluid bernoulli equation phenomenon can be accelerated flow velocity suddenly, in flue, produce the certain negative pressure draft, the flue gas accelerated motion that makes progress in the guiding flue.According to aerodynamic dynamic and static pressure transfer principle, if be worth under the constant situation in total head, dynamic pressure and static pressure are to transform mutually, dynamic pressure reduces, static pressure raises, we take inside that the mode that cross section, splay configuration transformation structure place dwindles suddenly is set, increase gas flow speed and increase dynamic pressure, reduce static pressure, make full use of aerodynamics dynamic pressure and static pressure transfer principle, can effectively eliminate air whirl, air curtain is finished the conversion of dynamic pressure and static pressure to the retardance of the up generation of lower floor's flue gas with at ad-hoc location, makes not open the kitchen exhaust mouth place static pressure of smoke exhaust ventilator very little even be negative pressure, forms draft and eliminates the phenomenon of collaborating.Thereby can solve effectively the retardance problem of air whirl, air curtain and in the past pipe interior water conservancy diversion and transformation member too much, take up space big, install complicated, easily come off and cause the difficult problem of line clogging.
House kitchen of the present utility model is concentrated the splay configuration transformation structure of oil extraction smoke pipe, and pipeline and the parts such as splay configuration transformation structure that set within it can combination formings, also can monolithic molding, make very convenient.Long service life, cost is low, i.e. and environmental protection is economical again.In the requirement of satisfying national construction industry industry standard JG/T 194-2006 simultaneously, can effectively solve air whirl and flue gas again pours in down a chimney and smoke blowing taint of odour problem, also overcome in the past pipe interior water conservancy diversion and transformation member too much, take up space big, install complicated, easily come off and cause the difficult problem of line clogging, have good economic outlook, can produce good social benefit.

Claims (4)

1. the splay configuration transformation structure of the concentrated oil extraction smoke pipe of house kitchen is characterized in that: be provided with one group of splay configuration transformation structure at least in described oil extraction smoke pipe; Described splay configuration transformation structure comprises and is arranged in splay 2 variable-pressure plates, forms 3 transformation exhaust openings (A, B, C) between described 2 variable-pressure plates and oil extraction smoke pipe at least.
2. house kitchen according to claim 1 is concentrated the splay configuration transformation structure of oil extraction smoke pipe, and it is characterized in that: described 2 variable-pressure plates are provided with fixture.
3. house kitchen according to claim 2 is concentrated the splay configuration transformation structure of oil extraction smoke pipe, and it is characterized in that: described fixture is plate or post, and described plate or post are arranged between 2 variable-pressure plates.
4. house kitchen according to claim 2 is concentrated the splay configuration transformation structure of oil extraction smoke pipe, and it is characterized in that: described fixture is plate or post, and described plate or post are arranged between variable-pressure plate and the tube wall.
CN2010206861425U 2010-12-29 2010-12-29 Splayed variable pressure structure for centralized cooking fume exhaust pipe of residential kitchen Expired - Lifetime CN201924565U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080444A (en) * 2010-12-29 2011-06-01 南京市紫葳新型建材实业有限公司 Splayed variable pressure structure of concentrated lampblack exhaust pipe in residential kitchen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080444A (en) * 2010-12-29 2011-06-01 南京市紫葳新型建材实业有限公司 Splayed variable pressure structure of concentrated lampblack exhaust pipe in residential kitchen

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Owner name: JIANGSU ZIWEI INSTITUTE OF BUILDING TECHNOLOGY CO.

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Patentee before: Nanjing City Ziwei Novel Building Material Industry Co., Ltd.

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