CN103806585A - Natural ventilator for plants in tropical monsoon regions - Google Patents
Natural ventilator for plants in tropical monsoon regions Download PDFInfo
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- CN103806585A CN103806585A CN201310396341.0A CN201310396341A CN103806585A CN 103806585 A CN103806585 A CN 103806585A CN 201310396341 A CN201310396341 A CN 201310396341A CN 103806585 A CN103806585 A CN 103806585A
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Abstract
The invention relates to a natural ventilator for plants in tropical monsoon regions. The natural ventilator comprises a frame body. The natural ventilator is characterized in that a cover plate is arranged at the top of the frame body, a lighting window is arranged on at least one side of the upper part of the frame body, a ventilating opening and a louver type ventilating window are arranged on one side of the middle of the frame body, and the louver type ventilating window consists of a window frame and a plurality of declined louver blades; a first baffle is arranged at the top end of the ventilating opening, and a second baffle is arranged on the outer edge of the louver type ventilating window; the first baffle, the louver type ventilating window and the second baffle form a roundabout ventilating passage, that is, the first baffle and the louver type ventilating window are connected to form a first section of the roundabout ventilating passage, and the second baffle and the louver type ventilating window are connected to form a second section of the roundabout ventilating passage. According to the natural ventilator, natural ventilation is used fully for improving the indoor thermal environment, the effect of thermal pressure ventilation is enhanced under the effect of solar radiation, and the natural ventilator has the characteristics of better natural ventilation effect and significant energy-saving effect.
Description
Technical field
The present invention relates to a kind of natural ventilator, be specifically related to a kind of natural ventilator for tropical monsoons area factory building.Belong to factory workshop ventilating equipment technical field.
Background technology
Tropical monsoons area is sultry summer, if factory building radiating condition is poor, can affect employee's operating efficiency, deterioration in quality, in order to improve employee's operating efficiency, need to improve the working environment in industrial premises, reach ventilation effect and daylighting requirement, and in order to prevent the accidents such as breaking out of fire to threaten the safety of factory building, conventionally all on factory building, be provided with ventilator.Existing ventilator is come to divide by name to be had: along slope ventilator, roof ventilator, lighting ventilator, Unpowered ventilation device, ridge ventilator, natural ventilator, roof ventilator, bar shaped blower fan, high power capacity ventilator etc.The most frequently used ventilator is natural ventilator; natural ventilator is generally made up of base, skeleton, flashing board, drainage system etc.; but the ventilator of prior art is due to unreasonable structure; conventionally there will be the rain phenomenon of leaking, waft; and ventilation effect is not good; maintenance is inconvenient, therefore, can not meet the Modern New Architectural Design Requirements in tropical monsoons area.In order to improve cleanliness factor and the comfort level of tropical monsoons area factory building, have and must develop a kind of natural ventilator for tropical monsoons area factory building.
Summary of the invention
Goal of the invention is ventilator unreasonable structure in order to overcome prior art, rain and the not good defect of ventilation effect occur leaking, waft, a kind of natural ventilator for tropical monsoons area factory building is provided, and that this natural ventilator that is used for tropical monsoons area factory building has is simple in structure, rain and the good feature of ventilation effect prevent from leaking, waft.
Object of the present invention can be achieved through the following technical solutions:
For the natural ventilator of tropical monsoons area factory building, comprise frame body, its design feature is: the top at frame body is provided with cover plate, at least be provided with light inlet window in the top of frame body one side, at the middle part of support, one side is provided with ventilation opening, below ventilation opening, extend outward louvered vent window, this louvered vent window is horizontally set, is made up of window frame and some dipping type louvre blades; Be provided with the first baffle plate on the top of described ventilation opening, this first baffle plate is outer incline shape and is connected with the middle part of louvered vent window, is provided with second baffle in louvered vent window outer edge, and this second baffle is outer incline shape and is connected with the aspect of factory building; Form winding type vent passages by the first baffle plate, louvered vent window and second baffle, the first baffle plate and louvered vent window connect and compose the first paragraph of winding type vent passages, and second baffle and louvered vent window connect and compose the second segment of winding type vent passages.
The present invention can also be achieved through the following technical solutions:
Further scheme of the present invention: the first baffle plate, louvered vent window and second baffle form in winding type vent passages, be barotropic state in the periphery of the first baffle plate and second baffle, be that ventilator open area is negative pressure state in the medial region of the first baffle plate and second baffle, form natural ventilating structure.
Further scheme of the present invention: be respectively provided with a light inlet window in the both sides, top of frame body, be respectively provided with a ventilation opening in the both sides, middle part of support, below ventilation opening, extend outward louvered vent window in the each formation one in the both sides of frame body, in an each winding type vent passages, the formation symmetrical expression winding type vent passages structure of forming in the both sides of frame body.
Further scheme of the present invention: frame body is arranged on factory building ridge peak opening part; Louvered vent window is arranged on 1/3 At The Height of frame body.
Further scheme of the present invention: frame body is H shaped steel frame, both sides at H shaped steel frame 1/3 At The Height are provided with at least two Cantilever Beams, some louvre blades are arranged on and between Cantilever Beams, form gas channel, be provided with two side-prominent crossbeams at H shaped steel frame top, cover plate arranges on crossbeam, be provided with boss in both sides, H shaped steel frame top, light inlet window is arranged on the edge between boss and crossbeam.
Further scheme of the present invention: cover plate is gradient shape, the described gradient can be 3%.
Further scheme of the present invention: the gradient of the first baffle plate and second baffle can be between 45 °～90 °
Further scheme of the present invention: the gradient of the first baffle plate can be 64.08 °, the gradient of second baffle can be 65 °.
Further scheme of the present invention: room lid, the first baffle plate, second baffle and cover plate can be made up of sandwich panel.
Further scheme of the present invention: eldest branch of a family's roof ridge peak opening part width is 2500mm.
Beneficial effect of the present invention:
1, the present invention has by the first baffle plate, louvered vent window and second baffle and forms winding type vent passages, can guarantee the hot pressing of indoor and outdoor and the normal circulation of blast, carry out natural ventilation by hot pressing and blast, the effect that the first baffle plate, louvered vent window and second baffle have draining and keep off the rain, therefore, there are natural ventilation ventilation, environmental protection and energy saving, prevent from leaking and the outstanding beneficial effect of the rain that wafts.
2, the present invention is owing to being arranged on factory building roof ridge peak, opening part is convenient to dredging of thermal current, the light inlet window arranging has increased the irradiated area of light in factory building, improve daylighting effect, therefore, be conducive to keep air in air channel and factory building, workshop to be dried, improve the working environment of workers, increase work efficiency.
3, structure effect of natural ventilation of the present invention is better, makes full use of natural ventilation and has improved indoor thermal environment, and the effect of Ventilation has been strengthened in the effect of solar radiation, energy-saving effect highly significant.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of a specific embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Specific embodiment 1:
As shown in Figure 1, the present embodiment comprises frame body 1, be provided with cover plate 2 at the top of frame body 1, respectively be provided with a light inlet window 3 in the both sides, top of frame body 1, be respectively provided with a ventilation opening in the both sides, middle part of support 1, below ventilation opening, extend outward louvered vent window 4-1, this louvered vent window 4-1 is horizontally set, is made up of window frame and some dipping type louvre blades; Be provided with the first baffle plate 5 on the top of described ventilation opening, this first baffle plate 5 is outer incline shape and is connected with the middle part of louvered vent window 4-1, be provided with second baffle 7 in louvered vent window 4-1 outer edge, this second baffle 7 is outer incline shape and is connected with the aspect of factory building; Form winding type vent passages 4 by the first baffle plate 5, louvered vent window 4-1 and second baffle 7, the first baffle plate 5 and louvered vent window 4-1 connect and compose the first paragraph of winding type vent passages 4, and second baffle 7 and louvered vent window 4-1 connect and compose the second segment of winding type vent passages 4.
In the present embodiment,
The first baffle plate 5, louvered vent window 4-1 and second baffle 7 form in winding type vent passages 4, be barotropic state in the periphery of the first baffle plate 5 and second baffle 7, be that ventilator open area is negative pressure state in the medial region of the first baffle plate 5 and second baffle 7, form natural ventilating structure.
Respectively be provided with a light inlet window 3 in the both sides, top of frame body 1, be respectively provided with a ventilation opening in the both sides, middle part of support 1, below ventilation opening, extend outward louvered vent window 4-1 in the each formation one in the both sides of frame body 1, in an each winding type vent passages 4, the formation symmetrical expression winding type vent passages structure of forming in the both sides of frame body 1.
Frame body 1 is arranged on factory building ridge peak opening part; Louvered vent window 4-1 is arranged on 1/3 At The Height of frame body 1.Frame body 1 is H shaped steel frame, both sides at H shaped steel frame 1/3 At The Height are provided with at least two Cantilever Beams 8, some louvre blade 4-1 are arranged on and between Cantilever Beams 8, form gas channel 4, be provided with two side-prominent crossbeams 9 at H shaped steel frame top, cover plate 2 arranges on crossbeam 9, be provided with boss 10 in both sides, H shaped steel frame top, light inlet window 3 is arranged on the edge between boss 10 and crossbeam 9.Cover plate 2 is gradient shape, and the described gradient is 3%.The gradient of the first baffle plate 5 is 64.08 °, and the gradient of second baffle 7 is 65 °.Room lid 6, the first baffle plate 5, second baffle 7 and cover plate 2 are made up of sandwich panel.Eldest branch of a family's roof ridge peak opening part width is 2500mm.
Described some louvre blade 4-1 are welded between two Cantilever Beams 8, are provided with two side-prominent crossbeams 9 at H shaped steel frame top, and cover plate 2 is inclined on crossbeam 9 by screw, between cover plate 2 and crossbeam 9, is 3% the gradient.The first baffle plate 5 is screwed on bracing frame 11, and second baffle 7 is screwed on bracing frame 11.
The area of factory building roof ridge peak opening part adopts CFD analogue technique method to calculate.
On support top, light inlet window is set, makes daylighting best results, described gas channel adopts some louvre blades to form, the air in vain space between blade exchanges, when outdoor while having wind, factory building is inside and outside, and to form partial pressure poor, automatically carries out interchange of air according to the diffusion principle of gas; When calm, rely on the stable temperature difference of indoor and outdoor when outdoor, can form stable Thermal Natural Ventilation ventilation, ensured the normal circulation of air-flow, do not need machine power to drive, realized the object of saving the energy.By interchange of air, poisonous, moist, the high temperature air in working environment is discharged, fresh air constantly adds in factory building in a steady stream, builds good working environment, thereby improves employee's operating efficiency, and rain can also shield portions wafts.
The first weather shield and second weather shield of the inclination arranging respectively between gas channel and light inlet window and room lid, in the time running into wind and rain invasion and attack, by the first weather shield and the second weather shield, rainwater is directly got rid of, further avoided leaking and wafing rain, thereby keep the dry of air channel.
Specific embodiment 2:
The feature of the present embodiment is: be provided with a light inlet window 3 in the top of frame body 1 side, a side respectively has a ventilation opening at the middle part of support 1, below ventilation opening, extend outward louvered vent window 4-1, this louvered vent window 4-1 is horizontally set, is made up of window frame and some dipping type louvre blades; Be provided with the first baffle plate 5 on the top of described ventilation opening, this first baffle plate 5 is outer incline shape and is connected with the middle part of louvered vent window 4-1, be provided with second baffle 7 in louvered vent window 4-1 outer edge, this second baffle 7 is outer incline shape and is connected with the aspect of factory building; Form winding type vent passages 4 by the first baffle plate 5, louvered vent window 4-1 and second baffle 7, the first baffle plate 5 and louvered vent window 4-1 connect and compose the first paragraph of winding type vent passages 4, and second baffle 7 and louvered vent window 4-1 connect and compose the second segment of winding type vent passages 4.
Specific embodiment 3:
The feature of the present embodiment is: described H shaped steel frame is provided with two, three or four above outside Cantilever Beams at 1/3 At The Height.All the other are with specific embodiment 1 or specific embodiment 2.
With take a certain cigarette industry factory building as example, design of the present invention is described further below.
The factory building gross area that this example relates to is 18000m2, and workshop area is 8424m2.
Calculate the area of factory building roof ridge peak opening part according to CFD analogue technique method for how many?, described eldest branch of a family's roof ridge peak opening part width is 2500mm.
According to CFD analogue technique method, utilize Natural Ventilation Design principle and theoretical formula to carry out the Natural Ventilation Design of factory building.
1) Natural Ventilation Design computational short cut condition
Because process equipment in workshop is arranged, the situations such as equipment cooling are very complicated, must adopt some assumed conditions just can calculate.
(1) temperature in whole workshop is all consistent, the not temporal evolution of waste heat amount in workshop;
(2) ventilation process is stable, affects the not temporal evolution of factor of natural ventilation;
(3) in workshop, in same level, the static pressure of each point equates, static pressure meets hydrostatics rule along the variation of short transverse;
(4) in workshop, be not subject to stopping of any object when Air Flow;
(5) do not consider the impact of local air flow, thermojet, draft dissipate before arriving air outlet;
2) factory building general ventilation ventilation volume designing and calculating
(1) determine temperature of outgoing air
Definite method of top, workshop temperature of outgoing air mainly contains temperature gradient method and efficient heat method, comparatively even for heat dissipation capacity, workshop when heat dissipation capacity is less than 116W/m3, indoor air temperature is roughly a linear relation with the regularity of distribution of short transverse, therefore, the temperature of outgoing air tp on top, workshop is calculated as follows:
tp=tn+a(h-2)
In formula, tn(is revised as tn)---workspace temperature (℃), on the ground at place, job site 2m with interior temperature;
H---air draft ventilator center to center distance ground level (m);
A---along the temperature gradient of workshop short transverse (℃/m);
This factory building gets 0.2 along the temperature gradient of workshop short transverse.
(2) get rid of the needed general ventilation ventilation volume of residual heat of workshop
The heat dissipation capacity Q providing according to this factory building chamber processes equipment is 460KW, outdoor ventilation design temperature t
wbe 34.7 ℃, calculate temperature of outgoing air t
pbe 38.2 ℃, can obtain general ventilation ventilation volume:
Formula c is coefficient in common use 1.01.
(3) entering air outlet area calculates and checks
The square root poor to aperture pressure at both sides by the volume of air flow in aperture is directly proportional,
A in formula
1, A
2---be respectively the area of air intake and air outlet, m
2;
V1, V2---be respectively the volume of air flow by air intake and air outlet, m3/s;
ζ 1, ζ 2---be respectively the coefficient of partial resistance of air intake and air outlet;
ρ n, ρ w---be respectively the density of indoor-outdoor air, kg/m3;
Δ p1, Δ p2---be respectively the inside and outside differential pressure at air intake and air outlet place, Pa.
Wherein aperture place inside and outside differential pressure is proportional to aperture from the density contrast inside and outside distance and the air of neutral plane,
Δp
1=h
1(ρ
w-ρ
n)g，Δp
2=h
2(ρ
w-ρ
n)g ②
H1 in formula, h2---be respectively the discrepancy in elevation of air intake and air outlet center and neutral plane; Discrepancy in elevation H=h1+h2 between air intake and air outlet.
According to mass conservation law, the mass flow of air intake equals the mass flow of air draft, has:
μ 1 in formula, μ 2---the discharge coefficient that is respectively air intake and air outlet is respectively
1., 2., 3. through type can calculate the natural ventilation rate under hot pressing, and its mass flow is:
G
3=ρ
wV
1=ρ
nV
2
Calculate into air outlet discharge coefficient μ 1 respectively, μ 2 is 0.46,0.65, supposes that neutral plane height is at 1/3 place of h, i.e. h1=8m, h2=17m, ρ
w=1.123kg/m3, ρ
n=1.117kg/m3,1., 2., 3. can calculate into air outlet area ratio according to formula and be: 1.35:1; Pressure reduction ratio is 0.7:1.
The natural ventilation rate ratio that hot pressing function forms approaches 1:1, meets the required precision of Design of Plant Natural Uentilation.
Described H shaped steel frame is arranged on factory building roof ridge peak opening part, the high 4500mm of H shaped steel frame, wide is 2500mm, be provided with two Cantilever Beams 8 in the both sides of H shaped steel frame 1/3 At The Height symmetry, it is 2000mm that every side Cantilever Beams 8 stretches out long, described gas channel 4 is made up of the some louvre blade 4-1 that are arranged between two Cantilever Beams 8, H shaped steel frame top is provided with two side-prominent crossbeams 9, the ledge length of every side crossbeam 9 is 700mm, cover plate 2 is obliquely installed on crossbeam 9, between cover plate 2 and crossbeam 8, there is 3% the gradient, be provided with boss 10 in symmetrical both sides, 2900mm place, H shaped steel frame top, the protruding 700mm of every side boss 10, so light inlet window 3 is arranged on the edge between boss 10 and crossbeam 9, the first weather shield 5 is 64.08 ° of angles of inclination by bracing frame 11 and is arranged between gas channel 4 and light inlet window 3, the second weather shield 7 is 65 ° of angles of inclination by bracing frame 11 and is arranged between gas channel 4 and room lid 6.Room lid 6, the first weather shield 5, the second weather shield 7 and cover plate 2 adopt sandwich panel.
Table 1: tobacco curing factory building is along the thermometer of workshop short transverse
The area of invention factory building roof ridge peak opening part adopts CFD analogue technique method, can reasonably adjust and the parameter such as definite factory building inlet and outlet mouth position and area and thermal source by adopting CFD analogue technique method, make the effect of natural ventilation reach optimum, simultaneously, use CFD analogue technique to be optimized analysis to factory building indoor natural ventilating air distribution, can make effect of natural ventilation reach optimum, the directive significance that this is important to being designed with of Plant Natural Uentilation device.
Claims (10)
1. for the natural ventilator of tropical monsoons area factory building, comprise frame body (1), it is characterized in that: be provided with cover plate (2) at the top of frame body (1), at least be provided with light inlet window (3) in the top of frame body (1) side, at the middle part of support (1), a side is provided with ventilation opening, below ventilation opening, extend outward louvered vent window (4-1), this louvered vent window (4-1) is horizontally set, is made up of window frame and some dipping type louvre blades; Be provided with the first baffle plate (5) on the top of described ventilation opening, this first baffle plate (5) is outer incline shape and is connected with the middle part of louvered vent window (4-1), be provided with second baffle (7) in louvered vent window (4-1) outer edge, this second baffle (7) is outer incline shape and is connected with the aspect of factory building; Form winding type vent passages (4) by the first baffle plate (5), louvered vent window (4-1) and second baffle (7), the first baffle plate (5) and louvered vent window (4-1) connect and compose the first paragraph of winding type vent passages (4), and second baffle (7) and louvered vent window (4-1) connect and compose the second segment of winding type vent passages (4).
2. the natural ventilator for tropical monsoons area factory building according to claim 1, it is characterized in that: the first baffle plate (5), louvered vent window (4-1) and second baffle (7) form in winding type vent passages (4), periphery at the first baffle plate (5) and second baffle (7) is barotropic state, be that ventilator open area is negative pressure state in the medial region of the first baffle plate (5) and second baffle (7), form natural ventilating structure.
3. the natural ventilator for tropical monsoons area factory building according to claim 1 and 2, it is characterized in that: be respectively provided with a light inlet window (3) in the both sides, top of frame body (1), be respectively provided with a ventilation opening in the both sides, middle part of support (1), below ventilation opening, extend outward louvered vent window (4-1) in the each formation one in the both sides of frame body (1), in an each winding type vent passages (4), the formation symmetrical expression winding type vent passages structure of forming in the both sides of frame body (1).
4. the natural ventilator for tropical monsoons area factory building according to claim 3, is characterized in that: described frame body (1) is arranged on factory building ridge peak opening part; Louvered vent window (4-1) is arranged on 1/3 At The Height of frame body (1).
5. the natural ventilator for tropical monsoons area factory building according to claim 1 and 2, it is characterized in that: frame body (1) is H shaped steel frame, be provided with at least two Cantilever Beams (8) in the both sides of H shaped steel frame 1/3 At The Height, some louvre blades (4-1) are arranged on and between Cantilever Beams (8), form gas channel (4), be provided with two side-prominent crossbeams (9) at H shaped steel frame top, cover plate (2) arranges on crossbeam (9), be provided with boss (10) in both sides, H shaped steel frame top, light inlet window (3) is arranged on the edge between boss (10) and crossbeam (9).
6. the natural ventilator for tropical monsoons area factory building according to claim 5, is characterized in that: described cover plate (2) is gradient shape, and the described gradient is 3%.
7. the natural ventilator for tropical monsoons area factory building according to claim 1, is characterized in that: the gradient of the first baffle plate (5) and second baffle (7) is between 45 °～90 °.
8. the natural ventilator for tropical monsoons area factory building according to claim 7, is characterized in that: the gradient of the first baffle plate (5) is 64.08 °, and the gradient of second baffle (7) is 65 °.
9. the natural ventilator for tropical monsoons area factory building according to claim 1, is characterized in that: room lid (6), the first baffle plate (5), second baffle (7) and cover plate (2) are made up of sandwich panel.
10. the natural ventilator for tropical monsoons area factory building according to claim 3, is characterized in that: eldest branch of a family's roof ridge peak opening part width is 2500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396341.0A CN103806585A (en) | 2013-09-03 | 2013-09-03 | Natural ventilator for plants in tropical monsoon regions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396341.0A CN103806585A (en) | 2013-09-03 | 2013-09-03 | Natural ventilator for plants in tropical monsoon regions |
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| Publication Number | Publication Date |
|---|---|
| CN103806585A true CN103806585A (en) | 2014-05-21 |
Family
ID=50703929
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310396341.0A Pending CN103806585A (en) | 2013-09-03 | 2013-09-03 | Natural ventilator for plants in tropical monsoon regions |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2152177Y (en) * | 1993-04-29 | 1994-01-05 | 陈文俊 | Natural ventilating device for grain storehouse |
| CN2441904Y (en) * | 2000-08-21 | 2001-08-08 | 兴钢建筑钢品(苏州)有限公司 | Automatic ventilation device for house |
| CN200986285Y (en) * | 2006-10-09 | 2007-12-05 | 梁鹏 | Housetop natural ventilator |
| CN203022194U (en) * | 2012-12-13 | 2013-06-26 | 广州市设计院 | Natural ventilator used in plant in tropical monsoon areas |
-
2013
- 2013-09-03 CN CN201310396341.0A patent/CN103806585A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2152177Y (en) * | 1993-04-29 | 1994-01-05 | 陈文俊 | Natural ventilating device for grain storehouse |
| CN2441904Y (en) * | 2000-08-21 | 2001-08-08 | 兴钢建筑钢品(苏州)有限公司 | Automatic ventilation device for house |
| CN200986285Y (en) * | 2006-10-09 | 2007-12-05 | 梁鹏 | Housetop natural ventilator |
| CN203022194U (en) * | 2012-12-13 | 2013-06-26 | 广州市设计院 | Natural ventilator used in plant in tropical monsoon areas |
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Application publication date: 20140521 |