CN215175886U - Energy-saving rainproof shutter for air exhaust - Google Patents
Energy-saving rainproof shutter for air exhaust Download PDFInfo
- Publication number
- CN215175886U CN215175886U CN202120576670.3U CN202120576670U CN215175886U CN 215175886 U CN215175886 U CN 215175886U CN 202120576670 U CN202120576670 U CN 202120576670U CN 215175886 U CN215175886 U CN 215175886U
- Authority
- CN
- China
- Prior art keywords
- energy
- support center
- blades
- blade
- air exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Air-Flow Control Members (AREA)
Abstract
The utility model discloses an air exhaust is with energy-conserving rain-proof tripe, it includes: the device comprises a frame, a plurality of support center pillars and a plurality of blades. Each support the center pillar and extend and both ends rotationally connect in along the horizontal direction the both sides of frame, it is a plurality of support the center pillar and extend vertical direction align to grid, each support the center pillar and have the fender to one side, the fender is used for injecing to one side the turned angle who supports the center pillar. Each blade extends along the horizontal direction and the top of the blade is fixed at the bottom of one of the support center posts, and the bottom of each blade is provided with a bent hook part which is matched with the support center post. The shutter can be used for automatically opening the blades to exhaust air and prevent rain when the air exhaust requirement is met, and the air exhaust requirement is not met, so that energy is saved inside and outside the automatic isolation room.
Description
Technical Field
The utility model relates to an air exhaust is with energy-conserving rain-proof tripe.
Background
In a building ventilation system, a louver is used as a common air inlet and exhaust device to be connected with indoor and outdoor spaces. Therefore, a plurality of outdoor influence factors need to be considered in the setting, for example, rain proofing needs to be considered for the louver, and the air pipe connected with the louver in the cold north in winter needs to be provided with an electric valve interlocking fan to prevent outdoor cold air from being poured into the room when the ventilation system is not opened. Considering that most ventilation systems are actually started intermittently in actual use, if the louver can automatically cut off and be linked with the outdoor when the ventilation system is not used, extra energy consumption of an air conditioning system caused by the fact that outdoor cold air enters the indoor space in winter can be avoided, or measures such as additionally arranging an electric valve linkage fan are omitted.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an air exhaust with energy-conserving rain-proof tripe in order to overcome among the prior art tripe be difficult to open or cut off the defect with outdoor contact under the condition of not additionally consuming energy.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
the utility model provides an it is air exhaust with energy-conserving rain-proof tripe which characterized in that, it includes:
a frame;
the support center pillars extend along the horizontal direction, two ends of each support center pillar are rotatably connected to two sides of the frame, the support center pillars are uniformly arranged along the vertical direction, each support center pillar is provided with an inclined stop, and the inclined stops are used for limiting the rotation angle of the support center pillars;
the blade comprises a plurality of blades, wherein each blade extends along the horizontal direction, the top of each blade is fixed to the bottom of one support center pillar, the bottom of each blade is provided with a bent hook part, and the hook parts are matched with the support center pillars.
Preferably, the inclined block is located at the end of the support center pillar, the side wall of the frame is provided with a fan-shaped groove, the inclined block is located in the fan-shaped groove and can abut against two ends of the fan-shaped groove, and the central angle of the fan-shaped groove is not more than 45 degrees.
Preferably, when the leaf is fully open, the bottom of the leaf is located inside the frame.
Preferably, the material of the blade is abs (acrylonitrile butadiene Styrene copolymers) resin.
Preferably, the blades are cuboid, and the gravity of the blades is smaller than the thrust generated by the exhaust pressure.
On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.
The utility model discloses an actively advance the effect and lie in: the shutter can be used for automatically opening the blades to exhaust air and prevent rain when the air exhaust requirement is met, and the air exhaust requirement is not met, so that energy is saved inside and outside the automatic isolation room.
Drawings
Fig. 1 is a schematic side view of the energy-saving rainproof louver for air exhaust in the preferred embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the energy-saving rainproof shutter for air exhaust in the preferred embodiment of the present invention.
Fig. 3 is a schematic structural view of the preferred embodiment of the present invention, in which the inclined baffle is matched with the fan-shaped groove.
Fig. 4 is a schematic view of the blade force applied in the preferred embodiment of the present invention.
Description of reference numerals:
Sector-shaped groove 110
Blade 300
Hook 310
Inclined baffle 400
Detailed Description
The present invention is further illustrated by way of the following examples, which are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Fig. 1 and 2 show an energy-saving rainproof louver for air exhaust, which comprises: a frame 100, a plurality of support center pillars 200, and a plurality of blades 300. Each of the support center pillars 200 extends in a horizontal direction and both ends thereof are rotatably connected to both sides of the frame 100, a plurality of the support center pillars 200 are uniformly arranged in a vertical direction, and each of the support center pillars 200 has a stopper 400 thereon, and the stopper 400 is used to limit a rotation angle of the support center pillar 200. Each blade 300 extends in a horizontal direction and is fixed at the top to the bottom of one of the support posts 200, and the bottom of each blade 300 has a curved hook 310, and the hook 310 is matched with the support post 200.
In the scheme, when the air exhaust is not needed, the blades 300 arranged in the vertical direction are mutually covered under the action of gravity, so that the cross section of the whole frame 100 can be completely covered, the indoor and outdoor are isolated through the louvers, unnecessary heat exchange is avoided, and energy loss is saved; when the air needs to be exhausted, the exhaust system is opened, the exhausted air is exhausted from the indoor to the outdoor through the shutters, the blades 300 can be simultaneously acted by wind power and gravity, when the thrust generated by the wind is enough, the blades 300 are automatically opened, and the indoor exhausted air is exhausted from the outdoor through the opened blades 300.
In order to ensure that the blade 300 has better rain-proof and ventilation properties, as shown in fig. 3, in the present embodiment, the inclined baffle 400 is located at the end of the support center pillar 200, the side wall of the frame 100 has a fan-shaped groove 110, the inclined baffle 400 is located in the fan-shaped groove 110 and can abut against the two ends of the fan-shaped groove 110, and the central angle of the fan-shaped groove 110 is not more than 45 degrees. The energy-saving rainproof shutter adopts the single-layer blades 300, the 45-degree shutter does not influence the outdoor communication area when the shutter is opened, the shutter shielding coefficient is about more than 90%, and the shutter can meet the actual requirement only by multiplying the actual calculation area by the 1.1 coefficient when the shutter is used.
In order to prevent the blade 300 from being damaged outside the exposed wall, the bottom of the blade 300 is located inside the frame 100 when the blade 300 is fully opened. In this scheme, whole tripe thickness sets for 50 ~ 70mm, and when blade 300 opened totally when convenient wall mounting shared space thickness be
May substantially wrap within the thickness of the frame 100.
In this embodiment, the material of the blade 300 is abs (acrylonitrile butadiene Styrene copolymers) resin. The material of the common rainproof shutter is aluminum alloy material, and the heat flow (heat flux density) passing through the material in unit time and unit area is calculated according to a heat transfer formula
q: heat flux density W/m2；
λ: thermal conductivity W/(m.K);
tw: the outdoor temperature is calculated to be-2.2 ℃ according to the winter air conditioner in the Shanghai region;
tn: indoor temperature, namely taking the winter design temperature of a conventional air-conditioning room to be 20 ℃;
be: taking the thickness of the material as 2 mm;
looking up the related engineering manual, the thermal conductivity of the aluminum alloy material is about 150-200W/(m.K), and the heat flux density of the conventional aluminum alloy material is about 2.2 × 106W/m2Therefore, the common aluminum alloy material can be called a good thermal conductor. The excellent heat transfer performance is that the heat dissipation amount through heat conduction is increased during indoor heating in winter, and the temperature of the aluminum alloy shutter can be rapidly reduced due to the low temperature of the discharged air in the indoor air conditioning area during indoor cooling in summer, so that the surface of the aluminum alloy shutter is dewed when the temperature of the aluminum alloy shutter is lower than the outdoor dew point temperature when the outdoor humidity is relatively high (the outdoor dew point temperature is high), and the attractiveness of the outdoor vertical surface is affected.
ABS resin is used as the polymer with the largest output and the most extensive application at present, and is widely applied to the manufacturing industries of machinery, electricity, textile, automobiles, airplanes, ships and the like and chemical engineering. The ABS resin is non-toxic and tasteless, and has semitransparent ivory appearance; the ABS has a thermal deformation temperature of 93-118 ℃ and can be used in a temperature range of-40-100 ℃; the heat conductivity coefficient of the ABS material is about 0.25W/(m.K), and the heat flow density of the ABS material is about 2750W/m according to the formula2Is a few times smaller than the conventional aluminum alloy materialMagnitude. Novel it adopts ABS resin as self material to air exhaust with energy-conserving rain-proof tripe design, and when ventilation system did not open, the tripe was the closed condition, and the heat flux density through this material is lower relatively, and is less to the influence in indoor air conditioning district.
To realize the automatic opening and closing of the blades 300 of the louver, the key is that the gravity of the blades 300 is smaller than the thrust generated by the exhaust pressure. In the scheme, the blade 300 is in a cuboid shape, and the blade 300 is 500mm long, 50mm wide and 2mm thick. At ordinary times, the ventilation system generally only serves a certain specific area, the air pipe is not too long, and the pressure head of the fan is limited by the regulation of the unit air volume power consumption value Ws in the public building energy-saving design standard GB 50189-2015. The limit value of the unit air volume power consumption Ws of the air duct of the mechanical ventilation system is 0.27 according to the standard requirement, and the power consumption Ws is inversely calculated according to the formula Ws which is P/(3600 multiplied by eta CD multiplied by eta F)
Ws: the unit air quantity power consumption of the air duct system;
p is the wind pressure Pa of a fan of the ventilation system;
η CD: the motor and transmission efficiency% is taken as 0.855;
η F: fan efficiency%, 0.65;
and obtaining that the maximum total pressure of the fan which can be selected by the ventilation system at ordinary times is about 540Pa, estimating the resistance of the air pipe system according to 3Pa per meter, and taking 50Pa as the self resistance of the fan. Suppose that an exhaust system is 50m long, and the residual pressure of the exhaust system is 540-50-3 multiplied by 50 which is 340 Pa.
The ABS plastic density is about 1.1 × 10 for consulting related data3kg/m3The mass m of the single blade 300 is 0.5m × 0.05m × 2 × 10-3×1.1×103m＝0.055kg。
As shown in FIG. 4, the blade 300 is affected by two forces, G is the weight of the blade 300 itself, and F is the thrust imparted to the blade 300 by the wind pressure:
G＝mg＝9.8×0.055＝0.539N；
f ═ ps ═ 340 × 0.5 × 0.05 ═ 8.5N, much greater than gravity G;
for the moment balance of the row of points O, according to the moment formula M being F × L and L1 being L2 (the maximum opening angle of the energy-saving rainproof louver is 45 °), it is found that the purpose of automatically opening the blade 300 by rotating in the direction of the moment can be satisfied as long as F is greater than G. It follows that at a blade 300 thickness of 2mm, the blade 300 weighs much less than the excess pressure provided by a conventional exhaust system, and has very limited effect on the overall exhaust system resistance. When exhaust system opened, the residual pressure of ordinary fan can push away this novel energy-conserving rain-proof tripe's blade 300 easily and airs exhaust, and when exhaust system closed, blade 300 self received the influence of gravity and also can close simultaneously, cuts off indoor outer circulation of air, reaches energy-conserving effect.
Estimating the energy-saving condition of using the novel energy-saving rainproof louver for air exhaust:
the power generated by natural ventilation comes from hot pressing and wind pressure. The hot pressing is mainly generated in the building environment space with different indoor and outdoor temperatures, and the wind pressure refers to the static pressure difference between the indoor and the outdoor caused by the outdoor wind acting on the building outer enclosing structure. If a pressure difference deltap exists across the window in the building exterior wall, air will flow through the window with a resistance equal to deltap ζ ρ v2And/2, wherein ζ window local resistance coefficient, v: flow velocity m/s, ρ: air density kg/m3. The ventilation volume caused thereby is
In the relevant CFD simulation literature, the parameter mu can be 0.78, the delta p is calculated according to 1Pa, the window hole area F is the size of 0.25 in the embodiment multiplied by the shielding coefficient of the conventional rainproof louver to be 0.7, the air density is 1.2, and the ventilation air exchange L is calculated to be 0.18(m is m3In s). Neglecting the influence of the indoor air pipe section of the exhaust system on the air volume, we can obtain that the maximum air volume of the common rainproof shutter passing through the area is L-0.18 (m3In s). The heat consumption of the part of air volume can be calculated by the indoor and outdoor temperature difference (the calculated temperature of the outdoor air conditioner in Shanghai and winter is-2.2 ℃ and the indoor temperature is 20 ℃) is 4.84 kJ/s. The application of the rainproof shutter in a building is still very much, and the usage amount is generally far more than 0.25 square meter, so that the heat consumption of the cold air in the actual use is not small.
Although the heat loss caused by the infiltration air volume under the influence of the wind pressure cannot be obtained through actual calculation, the related specification article, "civil building heating ventilation and air conditioning design specification" mentions that the heat loss is suitable for 5% -10% of the vertical outer peripheral protective structure of buildings arranged on high lands, rivers, coasts and open fields without wind shielding and buildings obviously higher than other surrounding buildings in cities and towns. Therefore, the extra heat consumption of the building enclosure structure occupies about 5% -10% of the heat consumption of the building enclosure structure, the number of the louvers arranged on the periphery of the building is reduced as much as possible, the tightness of the building is better, and the heat consumption of the building is reduced naturally.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (5)
1. The utility model provides an it is aired exhaust with energy-conserving rain-proof tripe which characterized in that, it includes:
a frame;
the support center pillars extend along the horizontal direction, two ends of each support center pillar are rotatably connected to two sides of the frame, the support center pillars are uniformly arranged along the vertical direction, each support center pillar is provided with an inclined stop, and the inclined stops are used for limiting the rotation angle of the support center pillars;
the blade comprises a plurality of blades, wherein each blade extends along the horizontal direction, the top of each blade is fixed to the bottom of one support center pillar, the bottom of each blade is provided with a bent hook part, and the hook parts are matched with the support center pillars.
2. The energy-saving rainproof louver for air exhaust of claim 1, wherein the inclined baffles are positioned at the end parts of the support center pillars, the side walls of the frame are provided with sector-shaped grooves, the inclined baffles are positioned in the sector-shaped grooves and can abut against the two ends of the sector-shaped grooves, and the central angle of the sector-shaped grooves is not more than 45 degrees.
3. The energy-saving rainproof louver for air exhaust of claim 2, wherein when the blades are fully opened, the bottoms of the blades are located inside the frame.
4. The energy-saving rainproof louver for air exhaust as claimed in claim 2, wherein the material of said blades is ABS (acrylonitrile butadiene Styrene copolymers) resin.
5. The energy-saving rainproof louver for air exhaust of claim 4, wherein the blades are rectangular, and the gravity of the blades is smaller than the thrust generated by the air exhaust pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120576670.3U CN215175886U (en) | 2021-03-22 | 2021-03-22 | Energy-saving rainproof shutter for air exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120576670.3U CN215175886U (en) | 2021-03-22 | 2021-03-22 | Energy-saving rainproof shutter for air exhaust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215175886U true CN215175886U (en) | 2021-12-14 |
Family
ID=79351805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120576670.3U Active CN215175886U (en) | 2021-03-22 | 2021-03-22 | Energy-saving rainproof shutter for air exhaust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215175886U (en) |
-
2021
- 2021-03-22 CN CN202120576670.3U patent/CN215175886U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Khan et al. | A review on wind driven ventilation techniques | |
| Khedari et al. | Experimental study of a roof solar collector towards the natural ventilation of new houses | |
| US8152608B1 (en) | Solar energy intercept and waste heat recovery system | |
| JPS6150213B2 (en) | ||
| US20180306466A1 (en) | Improvements to heating, ventilation and air conditioning systems | |
| CN210070218U (en) | Air heat exchange device, liquid bag type fin evaporator, air-source heat pump and water heater | |
| CN215175886U (en) | Energy-saving rainproof shutter for air exhaust | |
| US4181118A (en) | Solar heating system | |
| CN102226548A (en) | Water heating-electric heating phase change copper-aluminum compound column-wing-type radiator | |
| CN202126000U (en) | Water heating-electric heating dual-purpose phase change copper-aluminum combined wing type radiator | |
| JPS6153955A (en) | Mount structure of air collector | |
| Kuo et al. | Assessment of the potential of roof turbine ventilators for bathroom ventilation | |
| CN112888250B (en) | Modular data center | |
| CN212227323U (en) | Ventilation device and ventilation system | |
| CN209310182U (en) | It is a kind of to utilize bomb shelter refrigeration, the air cool heat pump air conditioning system of heating | |
| CN208445171U (en) | A kind of novel box-type substation box body convenient for heat dissipation | |
| JPS5950033B2 (en) | Air conditioning equipment | |
| Shurcliff | Air-to-air heat-exchangers for houses | |
| JP2004069129A (en) | Air circulation panel | |
| RU2360187C1 (en) | Installation of climate-system for premises | |
| CN210463433U (en) | Compact fresh air exchange system | |
| JPH01174833A (en) | Air conditioner for building | |
| CN2771718Y (en) | Self-decorative multi-path multi function upgradable ventilation pipeline | |
| JP2012193602A (en) | Sash | |
| CN219160566U (en) | Air curtain with exhaust heat recovery function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |