CN203404888U - Air inlet and exhaust device for super high-rise building fresh air unit - Google Patents
Air inlet and exhaust device for super high-rise building fresh air unit Download PDFInfo
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- CN203404888U CN203404888U CN201320460265.0U CN201320460265U CN203404888U CN 203404888 U CN203404888 U CN 203404888U CN 201320460265 U CN201320460265 U CN 201320460265U CN 203404888 U CN203404888 U CN 203404888U
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Abstract
The utility model relates to an air inlet and exhaust device for a super high-rise building fresh air unit. The air inlet and exhaust device comprises the fresh air unit arranged on an equipment floor of a super high-rise building. The fresh air unit is connected with an air exhaust standpipe and an air supply standpipe. A fresh air pipeline of the fresh air unit is provided with two air inlets, an air exhaust pipeline of the fresh air unit is provided with two air outlets, and the two air inlets and the two air outlets are respectively formed in the outer walls of different sides of the super high-rise building. Pressure sensors are arranged on the outer walls of the air inlets and the air outlets, each air inlet is provided with an electric air valve, each air outlet is provided with an electric air valve, and the pressure sensors and the electric air valves are connected with a processor. The processor controls starting and stopping of each electric air valve according to the air pressure numerical value measured by the pressure sensors. The air inlet and exhaust device has the advantages that the operation effect of a fresh air and air exhaust system of the super high-rise building is guaranteed, air exhaust and fresh air inlet is prevented from being blocked, the practicality is high, and the energy-saving effect is obvious.
Description
Technical field
The utility model relates to a kind of supply and exhaust device, the new blower fan group of a kind of high-rise building of specific design enter air exhausting device.
Background technology
Along with going deep into of Urbanization in China, a line is even becoming tight the core space construction land day of tier 2 cities, and the quantity of high-rise building increases rapidly.High-rise building generally need be in building be established a mechanical floor every 30 layers, and mechanical floor is the also double refuge story of doing generally.Along with the raising of building energy conservation and green building related request, the new blower fan group that most of high-rise buildings are used all needs the two blower fan heat recovery fresh air units of preferential employing, and two blower fan heat recovery fresh air unit is arranged on mechanical floor conventionally.
Because the building height of high-rise building is higher, the windward side of outside vertical surface of building can be born larger on the occasion of blast, and larger negative value blast can be born in the surface of lee face and crosswind face part.Along with increasing of depth of building, the numerical value of blast can become rapidly large, and skyscraper disturbed effect also may improve the blast absolute value of the outer facade of high-rise building.According to related data, ground wind speed is that 5m/s(is approximately equivalent to common moderate breeze) time, highly the mean wind speed at the mechanical floor place of the high-rise building over 300 meters can reach approximately quite moderate gale of 12m/s(), the blast absolute value of windward side can surpass 50Pa, and the blast of wind vortex shedding place in close corner can reach-and more than 70Pa.And in order to control two blower fan heat recovery fresh air unit power consumptions, the overbottom pressure going out after stormproof louvre that the new wind of unit is got air port and exhaust outlet is but generally no more than 30Pa.In this case, because outside wind pressure has been greater than unit blast, if exhaust outlet is in windward side zone of positive pressure and new wind is got air port in lee face negative pressuren zone, will directly cause air draft, new wind air intake not smooth, indoor exhaust air can not get timely eliminating, fresh air cannot be introduced in time, and has a strong impact on the indoor air quality of high-rise building.
It is CFD simulation that prior art is attempted solution to the problems described above, the blast situation of simulating in detail this building in design process is to go after profits and advoid disadvantages as much as possible, but, due to wind direction meeting frequent change (such as seasonal fluctuations), the windward side of outside vertical surface of building and the position of lee face are in the middle of continuous variation.Though prior art can be simulated the position that the new wind of detailed design is got air port and exhaust outlet facade outside high-rise building by CFD, but can not make under various wind directions new wind get air port always in zone of positive pressure, exhaust outlet always in negative pressuren zone, only can in part-time effectively, cannot guarantee that new wind and exhaust system move continually and steadily.
Utility model content
The purpose of this utility model is to provide the air exhausting device that enters of the new blower fan group of a kind of high-rise building, utilize the windward side blast of the outer facade of high-rise building high, lee face and the low air pressure characteristics of crosswind face blast, the air intake ,Di blast district's air draft of Gao blast district, guarantee the new wind of high-rise building and the operational effect of exhaust system, avoid air draft and new wind air intake not smooth, and can significantly save the blower fan power consumption of two blower fan heat recovery fresh air units, there is good energy-saving effect.
The purpose of this utility model is to be achieved through the following technical solutions:
The new blower fan group of a kind of high-rise building enter air exhausting device, comprise the new blower fan group that is arranged on high-rise building mechanical floor, in described new blower fan group, be connected with air draft vertical tube and air-supply vertical tube, the fresh air pipeline of described new blower fan group is provided with two air inlets, the exhaust duct of described new blower fan group is provided with two air outlets, described two air inlets and described two air outlets are arranged on respectively on the not homonymy wall face of high-rise building, the wall face at described air inlet and air outlet place is provided with pressure sensor, described in each, air inlet and air outlet are all furnished with Electric air valve, described pressure sensor is all connected with processor with Electric air valve, the opening and closing of each Electric air valve of blast Numerical Control that described processor records according to pressure sensor.
Preferably, described new blower fan group is two blower fan heat recovery fresh air units.
Preferably, the angle between two wall faces at described two air inlets or air outlet installation place is 45 ~ 135 degree.
Most preferred, the angle between two wall faces that described two air inlets or air outlet are installed is 90 degree.
Preferably, described processor is that DDC(Direct Digital is controlled) controller.
Further, on described air draft vertical tube, air-supply vertical tube, fresh air pipeline and exhaust duct, be equipped with fire resisting damper.Described air inlet and air outlet place are equipped with rain insensitive device.
The beneficial effects of the utility model are:
1, guarantee the new wind of high-rise building and the operational effect of exhaust system, avoid air draft and new wind air intake not smooth.Can be so that getting air port in the new wind in the larger region of wind pressure value open, and open compared with the exhaust outlet of zonule in wind pressure value, avoid exhaust outlet malleation against the wind, new wind is got the situation that air port negative pressure is difficult to get wind.
2, the combine closely feature of high-rise building, practicality is high.According to the feature exploitation of the new wind exhaust system of high-rise building, after increasing the less parts of the investments such as sensor, controller, air-valve, airduct, just can utilize new wind, the exhaust system of built high-rise building to transform, simultaneously, new building directly can be used the utility model, and the transformation of existing building is also easy to.
3, automaticity is high, and applicability is strong.The utility model outside the building curtain wall be provided with pressure sensor, at machine room, be provided with DDC controller, can fully automatic operation, flexibly according to the variation of outdoor wind field, adjust in real time the unlatching in each air port, guarantee the operational effect of system.
4, energy-saving effect is remarkable.The utility model is got air port by open new wind at zone of positive pressure, at negative pressuren zone, opens exhaust outlet, and can make outside wind pressure variable resistance power is power, makes full use of the energy of outdoor natural wind, saves the power consumption of blower fan.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the structural representation that enters air exhausting device of the new blower fan group of high-rise building described in the utility model embodiment.
In figure:
1, new blower fan group; 2, processor; 3, pressure sensor; 4, rain insensitive device; 5, air draft Electric air valve A; 6, new wind Electric air valve A; 7, air draft Electric air valve B; 8, new wind Electric air valve B; 9, air draft vertical tube; 10, air-supply vertical tube; 11, fire resisting damper; 12, fresh air pipeline; 13, exhaust duct.
The specific embodiment
As shown in Figure 1, the new blower fan group of high-rise building described in the utility model embodiment enter air exhausting device, comprise that the two blower fan heat recovery fresh air units 1 of frequency conversion, processor 2(are preferably DDC controller), pressure sensor 3, rain insensitive device 4, air draft Electric air valve A5, new wind Electric air valve A6, air draft Electric air valve B7, new wind Electric air valve B8, air draft vertical tube 9, air-supply vertical tube 10, fire resisting damper 11, fresh air pipeline 12 and exhaust duct 13.
The new blower fan group of high-rise building described in the utility model embodiment enter air exhausting device, pressure sensor 3 is in order to measure the wind pressure value of high-rise building outer surface.The setting position of pressure sensor 3 is near the new wind air inlet and exhaust outlet of windward side, lee face and crosswind face.What accompanying drawing 1 adopted is that orthogonal two wall faces are installed into air port, and in practical application, many buildings may not be the plane of standard, and the requirement of the technical scheme that the utility model provides is that air inlet is arranged on wind pressure on building and differs the comparatively not coplanar of great disparity.Pressure sensor 3 is measured after the wind pressure value of high-rise building outer surface, sends a signal to DDC controller.DDC controller can be worked out control program according to prior art.DDC controller, by after the pressure parameter comparison of each position, sends control instruction to air draft Electric air valve A5, new wind Electric air valve A6, air draft Electric air valve B7 and new wind Electric air valve B8.Make to get the corresponding Electric air valve in air port in the new wind in the larger region of wind pressure value and open, and open compared with the corresponding Electric air valve of the exhaust outlet of zonule in wind pressure value, other Electric air valves are all closed.Such as, in conjunction with Fig. 1, when outdoor while being north wind, building north side (being assumed to be top in Fig. 1) is in windward side blast zone of positive pressure, side of buildings (being assumed to be right side in Fig. 1) is because air-flow accelerates or the reason static pressure such as vortex shedding reduces and when the negative pressuren zone, DDC controller sends instruction and controls that air draft Electric air valve A5 in zone of positive pressure closes, new wind Electric air valve A6 opens, and the air draft Electric air valve B7 in negative pressuren zone opens, new wind Electric air valve B8 closes.After air-valve has moved, new wind, from the pressurization of windward side zone of positive pressure, enters VMC via new wind Electric air valve A8; Air draft, via air draft Electric air valve B7, enters crosswind face negative pressuren zone under negative pressure swabbing action.After each air-valve has moved, new wind and exhaust system enter efficient running status, the new wind of outdoor introducing and the air draft of indoor eliminating are sent into respectively carry out heat exchange (recuperation of heat) in two blower fan recuperation of heat units after outside indoor and discharge chamber, have completed a complete workflow of the present utility model.When outdoor change of the wind, different towards high-rise building outside blast on curtain wall will change, pressure sensor 3 is sent to DDC controller by the wind pressure signal of variation, DDC controller sends control instruction according to control program after receiving wind pressure signal, control corresponding air-valve and open and close, complete workflow next time.
In practical application, such as, a new wind blower press 250Pa at certain installation of high building, two blower fan heat recovery fresh air units of exhaust fan total head 200Pa, when outdoor wind malleation reaches 60 handkerchiefs, during reach-70Pa of negative pressure, unit is by after frequency conversion speed-down, can save new blower fan power consumption approximately 20%, save exhaust blower power consumption approximately 35%.
For avoiding system to cause the utility model frequent movement because of the frequent variations of outdoor instantaneous wind direction and wind speed, when adopting prior art establishment DDC controller control program, can adopt average wind pressure value in a period of time as the control parameter of DDC controller according to actual conditions.Wherein the waste gas of Indoor environment enters new blower fan group by air draft vertical tube 9, and the new wind after unit is processed is sent into Indoor environment by air-supply vertical tube 10.
In the utility model, be provided with fire resisting damper 11.Described fire resisting damper 11, when building breaking out of fire, can turn-off airduct, prevents that the intensity of a fire from spreading by airduct.When practical application the utility model, can fire resisting damper 11 be also set at air draft vertical tube 9 and air-supply vertical tube 10 through-flooring places.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection domain of the present utility model.
Claims (7)
1. the new blower fan group of high-rise building enters air exhausting device, comprise the new blower fan group (1) that is arranged on high-rise building mechanical floor, in described new blower fan group (1), be connected with air draft vertical tube (9) and air-supply vertical tube (10), it is characterized in that: the fresh air pipeline (12) of described new blower fan group (1) is provided with two air inlets, the exhaust duct (13) of described new blower fan group (1) is provided with two air outlets, described two air inlets and described two air outlets are arranged on respectively on the not homonymy wall face of high-rise building and the wall face at described air inlet and air outlet place is provided with pressure sensor (3), described in each, air inlet and air outlet are all furnished with Electric air valve, described pressure sensor (3) is all connected with processor (2) with Electric air valve.
The new blower fan group of high-rise building according to claim 1 enter air exhausting device, it is characterized in that: described new blower fan group (1) is two blower fan heat recovery fresh air units.
The new blower fan group of high-rise building according to claim 1 enter air exhausting device, it is characterized in that: the angle that described two air inlets or air outlet are installed between two wall faces at place is 45 ~ 135 degree.
The new blower fan group of high-rise building according to claim 1 enter air exhausting device, it is characterized in that: the angle between two wall faces that described two air inlets or air outlet are installed is 90 degree.
The new blower fan group of high-rise building according to claim 1 enter air exhausting device, it is characterized in that: described processor (2) is DDC controller.
The new blower fan group of high-rise building according to claim 1 enter air exhausting device, it is characterized in that: on described air draft vertical tube (9), air-supply vertical tube (10), fresh air pipeline (12) and exhaust duct (13), be equipped with fire resisting damper (11).
The new blower fan group of high-rise building according to claim 1 enter air exhausting device, it is characterized in that: described air inlet and air outlet place are equipped with rain insensitive device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320460265.0U CN203404888U (en) | 2013-07-30 | 2013-07-30 | Air inlet and exhaust device for super high-rise building fresh air unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320460265.0U CN203404888U (en) | 2013-07-30 | 2013-07-30 | Air inlet and exhaust device for super high-rise building fresh air unit |
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| Publication Number | Publication Date |
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| CN203404888U true CN203404888U (en) | 2014-01-22 |
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| CN201320460265.0U Expired - Fee Related CN203404888U (en) | 2013-07-30 | 2013-07-30 | Air inlet and exhaust device for super high-rise building fresh air unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706950A (en) * | 2020-06-18 | 2020-09-25 | 浙江省现代建筑设计研究院有限公司 | Fresh air system |
-
2013
- 2013-07-30 CN CN201320460265.0U patent/CN203404888U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706950A (en) * | 2020-06-18 | 2020-09-25 | 浙江省现代建筑设计研究院有限公司 | Fresh air system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 |