CN113983546B - Multi-strand small wind beam body adaptive personalized ventilation terminal device - Google Patents
Multi-strand small wind beam body adaptive personalized ventilation terminal device Download PDFInfo
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- 238000009423 ventilation Methods 0.000 title claims abstract description 55
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 37
- 239000011148 porous material Substances 0.000 claims abstract description 18
- 230000003068 static effect Effects 0.000 claims description 9
- 238000009792 diffusion process Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 abstract description 2
- 210000003128 head Anatomy 0.000 description 13
- 238000005265 energy consumption Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 208000003556 Dry Eye Syndromes Diseases 0.000 description 3
- 206010013774 Dry eye Diseases 0.000 description 3
- 206010040880 Skin irritation Diseases 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000036556 skin irritation Effects 0.000 description 3
- 231100000475 skin irritation Toxicity 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
- 241000755266 Kathetostoma giganteum Species 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a multi-strand small wind beam body adaptive personalized ventilation terminal device which comprises a body adaptive pore plate, a variable frequency fan, a connecting soft air pipe and a control panel. The control panel is arranged on the desktop of the office desk. The body adaptability orifice plate is vertical to be set up in one side of desk, and the inside of body adaptability orifice plate is cavity, and body adaptability orifice plate is provided with a plurality of ventilation holes towards one side of desk. The body adaptability pore plate is connected with a soft air pipe, the soft air pipe is connected with a variable frequency fan, and the variable frequency fan is located outdoors and connected with a fresh air outlet. The single jet flow is changed into a plurality of small air beam jet flows which are not mixed, the action area of the jet flow on the user is increased, the wind pressure of the face of the user is reduced, the personalized requirements of different users on the wind quantity are met through the variable frequency fan, and therefore the comfort of personalized ventilation is improved.
Description
Technical Field
The invention relates to the field of heating ventilation technology air conditioning equipment, in particular to a multi-strand small wind beam body adaptive personalized ventilation terminal device.
Background
The main function of the building is to ensure that the user is not affected by outdoor weather conditions and to provide a comfortable indoor environment. With rapid development of science and technology and economy, people have higher requirements on buildings: more comfortable, higher air quality, more energy efficient.
According to the accounting result of energy consumption and emission in the building field of China by the university of Qinghua building energy-saving research center: in 2018, the energy consumption for building construction and operation in China accounts for 37% of the total energy consumption of the whole society, and is close to the global proportion. Wherein, the energy consumption of the heating ventilation air conditioner accounts for a large proportion of the energy consumption of the building. The energy consumption of heating ventilation and air conditioning in developed countries is about 65% of the energy consumption of buildings. However, even if the energy consumption of the building is so large, the indoor environment created is not fully satisfactory due to the insufficient thermal comfort and indoor air quality. This phenomenon is most commonly used with conventional centralized systems: such as mixed ventilation and displacement ventilation, are more prominent in office buildings where indoor environmental conditioning is performed.
In order to improve the thermal comfort of indoor personnel and improve the indoor air quality, personalized ventilation (Personalized Ventilation, PV) is increasingly receiving attention as an air supply mode for directly delivering the regulated fresh air to the breathing zone of the staff. Under the air supply mode, a user can independently control the air conditioner to supply air according to the individual requirements of the user, so that an office microenvironment meeting the individual requirements is realized. In office buildings, due to this feature, personalized ventilation systems have great potential in improving thermal comfort, improving indoor air quality, and saving energy.
The desktop personalized system is a personalized ventilation system which is most commonly used because of the flexibility, can bring more comfortable hot environment and improve indoor air quality.
There are still studies that find the discomfort associated with desktop personalization systems. The prior desktop personalized ventilation device generally only considers the head air supply or chest ventilation. For the end device supplying air to the head, ventilation cannot cover the head completely, the flow field of the head is uneven and the center speed is very high, so that the problem of heat discomfort is caused. The turbulence intensity reduces the thermal sensation difference between the whole body and the face, and under the cooling condition, the personalized ventilation system adopts higher turbulence intensity to reduce the ventilation risk, so that the personalized ventilation system is beneficial. But in order to maintain a longer and more concentrated core area to prevent excessive mixing of the air streams, low turbulence intensity blast jets are typically used. Subjective experiments with personalized ventilation by students have found that 30% of subjects report PV to cause dry eyes. In the case where the flow rate of the air flow increases, the visual fatigue phenomenon becomes serious. And personalized air supplied close to the face may increase blinking and skin irritation, possibly feeling uncomfortable. In the use of desktop personalized ventilation systems in combination with displacement ventilation, large non-uniformities and spatial differences may occur due to the distribution of the air exhaled by the user, which may lead to cross-contamination.
Therefore, the personalized ventilation terminal should reduce ventilation risk, ensure that the air flows are not mixed as much as possible so as to ensure that the cleanest fresh air is sent to a user, and reduce heat non-uniformity by increasing the area of air supply, thereby improving heat comfort. In addition, the personalized ventilation terminal device should also pay attention to the problems of dry eyes, skin irritation and the like, so that the application experience of a user is improved as much as possible. In terms of improving comfort and improving indoor air quality, it is necessary to develop a novel personalized ventilation terminal to alleviate the problems of the personalized ventilation system terminal, so as to bring better use experience.
Disclosure of Invention
The invention aims to provide a multi-strand small wind beam adaptive personalized ventilation terminal device, which solves the problems in the prior art.
The technical scheme adopted for realizing the purpose of the invention is that the multi-strand small wind beam body adaptive personalized ventilation terminal device comprises a body adaptive pore plate, a variable frequency fan, a soft wind pipe connected with the variable frequency fan and a control panel. The control panel is arranged on the tabletop of the office desk.
The utility model discloses a desk, including the body adaptability orifice plate, the body adaptability orifice plate is vertical to be set up in one side of desk, and the inside cavity of body adaptability orifice plate is provided with a plurality of ventilation holes towards one side of desk.
The body adaptability orifice plate is connected with a soft air connecting pipe, the soft air connecting pipe is connected with a variable frequency fan, and the variable frequency fan is located outdoors and connected with a fresh air outlet.
When the multifunctional desk is used, a user sits on one side of the desk and faces the shape adaptive orifice plate, the user controls the variable-frequency fan to adjust the air quantity to be proper through the control panel according to requirements, and fresh air is blown to the head and the chest of the user through the shape adaptive orifice plate.
Further, the longitudinal section of the body-adapting pore plate is in an inverted T shape.
Further, the upper edge of the shape adaptive orifice plate is positioned above the desk top.
Further, the lower end of the shape adaptive pore plate is provided with an air inlet, and the air inlet is connected with a soft air connecting pipe through a static pressure box.
The invention has the beneficial effects that:
1. the terminal device can be used for adjusting according to the personalized requirements of users and can be used as terminal device for personalized air supply for offices;
2. compared with the traditional personalized air supply terminal, under the condition of ensuring the same air supply quantity, the air pressure of the novel personalized ventilation system terminal is only 4.86% of the air pressure of the traditional personalized ventilation system terminal, so that the air pressure is greatly reduced, and the comfort is improved;
3. consider important heat dissipation position of human body: the head and the chest can avoid the temperature non-uniformity which can be caused by the fact that the traditional personalized ventilation terminal only supplies air to the head or the chest, and the comfort is further improved;
4. the body adaptive orifice plate air outlet mainly uses the converging section of orifice plate jet flow, so that the mixing of jet flow and indoor air is reduced, fresh air is directly sent to the face of a user, and the air quality of the face of the user is improved;
5. simple structure, easy realization, low price and convenient installation and use.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a front view of a conforming orifice plate;
FIG. 3 is a schematic illustration of a jet of a shape-conforming orifice plate;
fig. 4 is a schematic view of the installation of the device of the present invention.
In the figure: the device comprises a body adaptive pore plate 1, an air inlet 101, a variable frequency fan 2, a connecting soft air pipe 3, a control panel 4, an office table 5, an air supply diffuser 6 and an air return single-layer shutter 7.
Detailed Description
The present invention is further described below with reference to examples, but it should not be construed that the scope of the above subject matter of the present invention is limited to the following examples. Various substitutions and alterations are made according to the ordinary skill and familiar means of the art without departing from the technical spirit of the invention, and all such substitutions and alterations are intended to be included in the scope of the invention.
Example 1:
the embodiment discloses a multi-strand small wind beam body adaptive personalized ventilation terminal device, which comprises a body adaptive pore plate 1, a variable frequency fan 2, a soft wind pipe 3 and a control panel 4. Referring to fig. 1, the control panel 4 is mounted on the top of the desk 5.
The body-adaptive orifice plate 1 is vertically arranged on one side of the office table 5, the inside of the body-adaptive orifice plate 1 is hollow, and a plurality of ventilation holes are formed in one side of the body-adaptive orifice plate 1 facing the office table 5. The upper edge of the body-adapting pore plate 1 is positioned above the tabletop of the office table 5.
The longitudinal section of the shape adaptive orifice plate 1 is in an inverted T shape, and the size of the shape adaptive orifice plate 1 is determined according to the body shape of a user.
Referring to fig. 2, an air inlet 101 is arranged at the lower end of the body-adapting pore plate 1, and the air inlet 101 is connected with a connecting soft air pipe 3 through a static pressure box.
The soft air pipe 3 is connected with the variable frequency fan 2, see fig. 4, the variable frequency fan 2 is positioned outdoors and connected with a fresh air outlet, and an air supply diffuser 6 and an air return single-layer shutter 7 are arranged on an indoor ceiling.
When the multifunctional desk is used, a user sits on one side of the desk 5 and faces the shape adaptive orifice plate 1, the user can control the variable frequency fan 2 to adjust to proper air quantity through the control panel 4 according to requirements, see fig. 3, fresh air is blown to the head and the chest of the user through the shape adaptive orifice plate 1, the shape adaptive orifice plate 1 can ensure that air supply reaches a working area in the form of a plurality of small air bundles after being calculated according to the sizes of the head and the chest of the user, and in the air supply process, no mixing occurs between the small air bundles.
The design of the shape adaptive orifice plate 1 in this embodiment may be as follows:
the basic characteristics of the form-fitting orifice plate 1 can be represented by the aperture ratio (or effective area coefficient) k, i.e
Wherein: f (f) 0 -total area of orifices; f (f) 1 -aperture plate area.
According to the concise air conditioner design manual, the diffusion angle theta of orifice plate jet flow is 9-10 degrees (one side), the diffusion angle of 10 degrees is selected, and the diffusion angle is used as the distance x between an air supply outlet and a face 0 For 40cm, to ensure that still a small wind beam reaches the face, the hole spacing l should ensure:
l＝2(x 0 tanθ+r) (2)
wherein: l-hole spacing; x is x 0 -distance of the supply opening from the face; θ—the diffusion angle of the orifice plate jet; r-orifice radius.
The invention utilizes the orifice plate to supply air and join the section. Consider the most disadvantageous case in which the furthest point of the supply air is the junction of the converging section and the initiating section. Since the attenuation of the center temperature and the center wind speed both occur in the converging section, it is only dependent on the size of the aperture ratio and the aperture characteristics, regardless of the range. The center speed of the farthest (start) junction segment can therefore be calculated by:
wherein: u (u) x -the central speed of the farthest (starting) junction section; u (u) 0 -orifice outflow rate; k1 K2, K3-are correction coefficients that account for jet confinement, overlap, and non-isothermicity, respectively; k is the aperture ratio; μ—orifice flow coefficient, μ=0.5 when directly fed from a tube orifice plate.
It is noted that by examining the isothermal jets exiting the orifice plates, it is shown that there is a junction section of the jets exiting each orifice before they join to a total flow. The personalized air supply terminal device changes the traditional flat-head conical air port in the desktop personalized CMP system into an orifice plate with a plurality of small circular air ports by utilizing the characteristics of the orifice plate jet converging section. By arranging the round orifices and designing the shape of the orifice plate, the head and the chest with the greatest heat dissipation of the human body are considered, and the personalized ventilation terminal device with the adaptability of the multi-strand small wind beam body is designed.
The device of the embodiment replaces a single large air beam with a plurality of small air beams, and fully considers the shape of a user, so that discomfort such as dry eyes and skin irritation can be brought to the air supply end of the conventional desktop personalized ventilation system, and the personalized ventilation air supply end optimizing device for improving comfortableness is further reduced. Through optimizing traditional individualized air supply end, change single jet flow into the little wind bundle jet flow of multi-strand undoped to give consideration to head and chest, increase the efflux at user's area of action, with this wind pressure that reduces user's face, satisfy the individualized demand of different users to the amount of wind through adjustable blast gate, thereby improve individualized ventilation's travelling comfort. In addition, as the jet mainly adopts the converging section, the mixing of the jet and indoor air is reduced, and the quality of air inhaled by a user is improved.
Example 2:
the main structure of this embodiment is the same as that of embodiment 1, and further, the dimensions of each component of the device described in embodiment 1 are as follows:
1. calculation basis
1. Tuyere flow rate setting
The specific range of flow rates acceptable for a personalized ventilation system is 7-15L/s, and studies have shown that the ventilation effect, while increasing with increasing flow rate, remains the same when the flow rate is higher than 10L/s. Therefore, in the present embodiment, the air flow rate L of the terminal device is set to 10L/s, namely 0.01m 3 /s。
2. Air port and user face distance setting
In offices, the distance of the personalized ventilation system tuyeres from the face of the user is recommended to be 40cm-60cm according to ergonomics. In this embodiment, the distance x between the tuyere and the face of the user 0 Set to 40cm, i.e. 0.4m.
3. Outlet air speed and air supply area of orifice
To avoid large noise generated during orifice outflow and ensure that the flow velocity of the working area is in a proper range, the air velocity u of orifice outflow is common 0 The orifice outflow wind speed u in the embodiment is less than or equal to 4m/s 0 Set to 3m/s.
The air supply area f can be obtained by the method (4) 0 ’：
Wherein: l-flow of air, m 3 /s。
4. Aperture spacing
The hole spacing l should ensure the requirement of formula (2):
5. office desk
The desk selects a standard single desk with the dimensions of 1200mm x 800mm x 750mm.
2. Orifice plate and orifice sizing
In order to increase the number of jet flows as much as possible, so as to ensure that the air supply area acted on the face of a user is increased, the irritation of air flow to skin and eyes is reduced, the mixing between the air flows is reduced, the comfort of the desktop personalized ventilation system is improved, and the area of jet flow orifices is required to be reduced as much as possible during design. To ensure that no mixing between the jets is performed, 9 circular orifices were designed, each circular orifice area f' being obtainable by formula (5):
the circular orifice radius r is determined to be 0.01m, i.e. 10.0mm.
The actual orifice area f is thus determined by equation (6):
f＝πr 2 ＝0.000314m 2 (6)
thus, the actual total area f of the apertures 0 Determined by formula (7):
f 0 ＝9f＝9×0.000314＝0.00287m 2 (7)
the actual jet wind speed v is:
the present embodiment utilizes an orifice plate air supply merging section. Considering the most disadvantageous case, i.e. the furthest point of the air supply is the junction of the merging section and the initial section, the user's face should be the end of the merging section. Distance x between air supply port and face 0 For 40cm, to ensure that still a small wind beam reaches the face, the hole spacing l should be ensured as:
l＝2(x 0 tanθ+r)＝2×(400×tan10°+10.0)＝161.06mm
the hole spacing l was taken to be 160mm, i.e. 16cm.
In order to give consideration to the air supply of the head and the chest, 9 circular orifices are arranged according to the shape of the upper body of the human body, and the inverted T-shaped orifice plate size can be obtained according to the hole spacing and the circular orifice size. The orifice plate size was set as: 320mm by 300mm+300mm by 460mm;
thus, the orifice plate area f 1 Is that
f 1 ＝320×300+300×460＝234000mm 2 ＝0.2340m 2 (9)
3. Static pressure box checking design
In order to ensure uniform air supply of the pore plate, a static pressure box is arranged, and a high and stable static pressure is kept in the static pressure box to serve as a pressure stabilizing layer. For orifice plate air supply, the height of the pressure stabilizing layer should be determined by calculation.
The voltage stabilizing layer height h can be determined by the formula (10) and the formula (11):
air supply rate L per unit area d (m 3 /m 2 H) is
Wherein: l (L) d Air supply quantity per unit area of orifice plate air supply, m 3 /m 2 H; s-the maximum flow path of the air flow of the pore plate part in the pressure stabilizing layer, m; h-height h of the voltage stabilizing layer, m.
The height of the static pressure tank is set to 0.1m in consideration of the air inlet.
4. Theoretical calculation contrast of facial wind pressure
1. Traditional personalized air supply terminal face wind pressure
The CMP tips of conventional personalized venting systems mostly employ circular orifice free jets. When a circular tube is used, the dimensionless turbulence coefficient a is 0.076. The diffusion angle θ is 14.49 ° because the diffusion angle of the jet and the dimensionless turbulence coefficient have the rule of formula (12).
tgθ＝3.4a (12)
Wherein: θ—jet diffusion angle; a-dimensionless turbulence coefficient.
Ensuring that the air quantity and the outlet air speed of the tail end of the traditional personalized air supply are consistent with those of the tail end of the novel personalized air supply, namely the air quantity L is 0.01m 3 S, outlet wind speed u 0 3.48m/s, feedThe wind area can be obtained:
radius R of round tube:
diameter d of round tube 0 ：
d 0 ＝2R＝2×30.2mm＝60.4mm (15)
The classical expression of the decay law of the axial velocity of the jet body section is as shown in formula (16):
wherein: u (u) x1 -calculating the axial velocity at section distance x, m/s; u (u) 01 Average velocity of tuyere outflow, m/s.
Obtainable u x1 ：
Therefore, the wind pressure of the face of the user
5. Novel personalized air supply tail end face wind pressure
The novel personalized air supply tail end directly adopts a pipeline for air supply, and the orifice flow coefficient mu=0.5;
the opening ratio k can be calculated from the formula (1):
in this embodiment, the orifice plate is used to supply air to the air converging section. Consider the most disadvantageous case in which the furthest point of the supply air is the junction of the converging section and the initiating section. Since the attenuation of the center temperature and the center wind speed both occur in the converging section, it is only dependent on the size of the aperture ratio and the aperture characteristics, regardless of the range. The center speed of the farthest (start) junction section can thus be calculated from equation (3):
taking correction coefficient K 1 ＝0.48，K 2 ＝1.35，K 3 ＝1；
Face wind speed u x ：
Therefore, the wind pressure of the face of the user
Wind pressure comparison between the tail end of the novel personalized ventilation system and the tail end of the traditional personalized ventilation system:
therefore, compared with the traditional personalized air supply terminal, the novel personalized ventilation system has the advantages that the air pressure at the tail end of the novel personalized ventilation system is only 4.86% of the air pressure at the tail end of the traditional personalized ventilation system under the condition that the air supply quantity is the same, the air pressure is greatly reduced, and the comfort is improved.
Example 3:
the embodiment discloses a multi-strand small wind beam body adaptive personalized ventilation terminal device, which comprises a body adaptive pore plate 1, a variable frequency fan 2, a soft wind pipe 3 and a control panel 4. Referring to fig. 1, the control panel 4 is mounted on the top of the desk 5.
The body-adaptive orifice plate 1 is vertically arranged on one side of the office table 5, the inside of the body-adaptive orifice plate 1 is hollow, and a plurality of ventilation holes are formed in one side of the body-adaptive orifice plate 1 facing the office table 5.
Referring to fig. 4, the shape adaptive orifice plate 1 is connected with a soft air pipe 3, the soft air pipe 3 is connected with a variable frequency fan 2, and the variable frequency fan 2 is located outdoors and connected with a fresh air outlet.
When the multifunctional desk is used, a user sits on one side of the desk 5 and faces the body-adaptive orifice plate 1, the user can control the variable-frequency fan 2 to adjust to proper air quantity through the control panel 4 according to requirements, and fresh air is blown to the head and the chest of the user through the body-adaptive orifice plate 1.
Example 4:
the main structure of this embodiment is the same as that of embodiment 3, and further, the longitudinal section of the body-adaptive orifice plate 1 is in an inverted T shape.
Example 5:
the main structure of this embodiment is the same as that of embodiment 3, and further, the upper edge of the shape-adaptive orifice plate 1 is located above the top surface of the desk 5.
Example 6:
the main structure of this embodiment is the same as that of embodiment 3, and further, the lower end of the shape adaptive orifice plate 1 is provided with an air inlet 101, and the air inlet 101 is connected with the soft air pipe 3 through a static pressure box.
Claims (2)
1. A multi-strand small wind bundle body adaptive personalized ventilation terminal device is characterized in that: the intelligent air conditioner comprises a body adaptive pore plate (1), a variable frequency fan (2), a soft air pipe (3) and a control panel (4), wherein the control panel (4) is arranged on the tabletop of an office table (5);
the body-shaped adaptive orifice plate (1) is vertically arranged on one side of the office table (5), and the inside of the body-shaped adaptive orifice plate (1) is hollow; the longitudinal section of the shape adaptive pore plate (1) is in an inverted T shape; the upper edge of the shape adaptive pore plate (1) is positioned above the tabletop of the office table (5); a plurality of ventilation holes are arranged on one side of the body adaptive pore plate (1) facing the office table (5); the hole spacing l of the adjacent vent holes is shown as a formula (1);
l＝2(x 0 tanθ+r) (1)
wherein l is the hole spacing; x is x 0 The distance between the air supply port and the face is set; θ is the diffusion angle of the orifice plate jet; r is the orifice radius;
the body adaptive pore plate (1) is connected with the soft air pipe (3), the soft air pipe (3) is connected with the variable frequency fan (2), and the variable frequency fan (2) is positioned outdoors and connected with the fresh air outlet;
when the multifunctional desk is used, a user sits on one side of the desk (5) and faces the shape adaptive orifice plate (1), the user controls the variable frequency fan (2) to adjust to proper air quantity through the control panel (4) according to the requirements, and fresh air is blown to the head and the chest of the user through the shape adaptive orifice plate (1); the face of the user is positioned at the end position of the small wind beam converging section.
2. A multi-strand small wind bundle adaptable personalized ventilation end device according to claim 1, wherein: the lower end of the shape adaptive pore plate (1) is provided with an air inlet (101), and the air inlet (101) is connected with the soft air pipe (3) through a static pressure box.
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Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19826567A1 (en) * | 1998-06-15 | 1999-12-23 | Ltg Holding Gmbh | Space air conditioning process, e.g. for office |
| JP2004219011A (en) * | 2003-01-17 | 2004-08-05 | Jiro Irisawa | Exhaust means and exhaust device using jet flow |
| CN1757982A (en) * | 2005-11-18 | 2006-04-12 | 清华大学 | Terminal dynamic air blow of individuation air conditioning system |
| CN201081339Y (en) * | 2007-07-12 | 2008-07-02 | 杨守信 | Controllable inductive terminal air mixer |
| CN101733211A (en) * | 2009-12-15 | 2010-06-16 | 江苏大学 | Internal-mixing type central body cavitating nozzle |
| CN102261851A (en) * | 2010-12-16 | 2011-11-30 | 重庆市正川玻璃有限公司 | Induced draft and fume extracting device for ejector fan |
| CN102434952A (en) * | 2011-09-15 | 2012-05-02 | 广州约顿电子科技有限公司 | Method for solving problem of air supply uniformity in large-area, large-space and high-precision environment |
| WO2012093938A1 (en) * | 2011-01-03 | 2012-07-12 | Autarkis B.V. | Displacement ventilation system |
| JP2013007548A (en) * | 2011-06-27 | 2013-01-10 | Mitsubishi Electric Corp | Air conditioning system |
| CN103376210A (en) * | 2013-07-16 | 2013-10-30 | 中国航天科技集团公司第六研究院第十一研究所 | High-opening-percentage low-flow-resistance enhanced rectifying device |
| CN104180550A (en) * | 2014-07-16 | 2014-12-03 | 大连理工大学 | Static gas wave refrigerator adopting external excitation and concentrated dissipation |
| CN204572582U (en) * | 2015-03-13 | 2015-08-19 | 周旭红 | Tube bank pump-unit is reclaimed on a kind of boiler flue ground |
| CN105066394A (en) * | 2015-09-07 | 2015-11-18 | 王泽� | Gas diversion device of air conditioner |
| CN105452611A (en) * | 2013-08-16 | 2016-03-30 | 通用电气公司 | Flow vortex spoiler |
| CN106196394A (en) * | 2016-08-29 | 2016-12-07 | 珠海格力电器股份有限公司 | Blowing device and porous plate thereof |
| CN106288260A (en) * | 2016-10-09 | 2017-01-04 | 重庆大学 | A kind of office area partition-type air-conditioning system |
| CN107631049A (en) * | 2017-09-22 | 2018-01-26 | 兰州理工大学 | A kind of multilevel decompression V-type ball valve with combined pore plate |
| CN108800410A (en) * | 2018-07-13 | 2018-11-13 | 辽宁工程技术大学 | A kind of zonal ventilation device suitable for Commercial Complex |
| CN109140733A (en) * | 2018-07-13 | 2019-01-04 | 成都绿建工程技术有限公司 | A kind of determination method flowing energy-saving semicircle air outlet and the air-supply mouth structure |
| CN109140734A (en) * | 2018-07-13 | 2019-01-04 | 西安建筑科技大学 | A kind of energy-saving targeting air outlet |
| CN109140732A (en) * | 2018-07-13 | 2019-01-04 | 西安建筑科技大学 | A kind of energy-saving stream targeting air outlet |
| CN109163435A (en) * | 2018-07-13 | 2019-01-08 | 成都绿建工程技术有限公司 | A kind of determination method flowing energy-saving triangle air outlet and the air-supply mouth structure |
| CN109520114A (en) * | 2018-11-12 | 2019-03-26 | 吉林建筑大学 | A kind of silencing apparatus for Heating,Ventilating and Air Conditioning ventilating system |
| CN209310131U (en) * | 2018-12-12 | 2019-08-27 | 奥克斯空调股份有限公司 | A kind of air conditioner |
| CN110207349A (en) * | 2019-04-26 | 2019-09-06 | 西安建筑科技大学 | A kind of more jet stream coupling regime air outlets for personnel activity region |
| CN110871657A (en) * | 2018-08-29 | 2020-03-10 | 上海汽车集团股份有限公司 | Non-wind-sensing air supply system of automobile air conditioner and control method of air supply system |
| CN112385959A (en) * | 2020-01-06 | 2021-02-23 | 芭泊智能科技(南京)有限公司 | Hand-held airflow device |
| CN212844277U (en) * | 2020-08-14 | 2021-03-30 | 重庆大学 | Downburst storm wind tunnel test wind field simulation device |
| CN113218057A (en) * | 2021-05-28 | 2021-08-06 | 西安建筑科技大学 | Partition plate station air supply system, use method and check method |
| CN213983975U (en) * | 2020-11-30 | 2021-08-17 | 广东美的制冷设备有限公司 | Rectifying guide piece and air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10935276B2 (en) * | 2015-10-20 | 2021-03-02 | Steven Michalski | Air mixing device |
-
2021
- 2021-09-23 CN CN202111116819.0A patent/CN113983546B/en active Active
Patent Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19826567A1 (en) * | 1998-06-15 | 1999-12-23 | Ltg Holding Gmbh | Space air conditioning process, e.g. for office |
| JP2004219011A (en) * | 2003-01-17 | 2004-08-05 | Jiro Irisawa | Exhaust means and exhaust device using jet flow |
| CN1757982A (en) * | 2005-11-18 | 2006-04-12 | 清华大学 | Terminal dynamic air blow of individuation air conditioning system |
| CN201081339Y (en) * | 2007-07-12 | 2008-07-02 | 杨守信 | Controllable inductive terminal air mixer |
| CN101733211A (en) * | 2009-12-15 | 2010-06-16 | 江苏大学 | Internal-mixing type central body cavitating nozzle |
| CN102261851A (en) * | 2010-12-16 | 2011-11-30 | 重庆市正川玻璃有限公司 | Induced draft and fume extracting device for ejector fan |
| WO2012093938A1 (en) * | 2011-01-03 | 2012-07-12 | Autarkis B.V. | Displacement ventilation system |
| JP2013007548A (en) * | 2011-06-27 | 2013-01-10 | Mitsubishi Electric Corp | Air conditioning system |
| CN102434952A (en) * | 2011-09-15 | 2012-05-02 | 广州约顿电子科技有限公司 | Method for solving problem of air supply uniformity in large-area, large-space and high-precision environment |
| CN103376210A (en) * | 2013-07-16 | 2013-10-30 | 中国航天科技集团公司第六研究院第十一研究所 | High-opening-percentage low-flow-resistance enhanced rectifying device |
| CN105452611A (en) * | 2013-08-16 | 2016-03-30 | 通用电气公司 | Flow vortex spoiler |
| CN104180550A (en) * | 2014-07-16 | 2014-12-03 | 大连理工大学 | Static gas wave refrigerator adopting external excitation and concentrated dissipation |
| CN204572582U (en) * | 2015-03-13 | 2015-08-19 | 周旭红 | Tube bank pump-unit is reclaimed on a kind of boiler flue ground |
| CN105066394A (en) * | 2015-09-07 | 2015-11-18 | 王泽� | Gas diversion device of air conditioner |
| CN106196394A (en) * | 2016-08-29 | 2016-12-07 | 珠海格力电器股份有限公司 | Blowing device and porous plate thereof |
| CN106288260A (en) * | 2016-10-09 | 2017-01-04 | 重庆大学 | A kind of office area partition-type air-conditioning system |
| CN107631049A (en) * | 2017-09-22 | 2018-01-26 | 兰州理工大学 | A kind of multilevel decompression V-type ball valve with combined pore plate |
| CN109163435A (en) * | 2018-07-13 | 2019-01-08 | 成都绿建工程技术有限公司 | A kind of determination method flowing energy-saving triangle air outlet and the air-supply mouth structure |
| CN109140733A (en) * | 2018-07-13 | 2019-01-04 | 成都绿建工程技术有限公司 | A kind of determination method flowing energy-saving semicircle air outlet and the air-supply mouth structure |
| CN109140734A (en) * | 2018-07-13 | 2019-01-04 | 西安建筑科技大学 | A kind of energy-saving targeting air outlet |
| CN109140732A (en) * | 2018-07-13 | 2019-01-04 | 西安建筑科技大学 | A kind of energy-saving stream targeting air outlet |
| CN108800410A (en) * | 2018-07-13 | 2018-11-13 | 辽宁工程技术大学 | A kind of zonal ventilation device suitable for Commercial Complex |
| CN110871657A (en) * | 2018-08-29 | 2020-03-10 | 上海汽车集团股份有限公司 | Non-wind-sensing air supply system of automobile air conditioner and control method of air supply system |
| CN109520114A (en) * | 2018-11-12 | 2019-03-26 | 吉林建筑大学 | A kind of silencing apparatus for Heating,Ventilating and Air Conditioning ventilating system |
| CN209310131U (en) * | 2018-12-12 | 2019-08-27 | 奥克斯空调股份有限公司 | A kind of air conditioner |
| CN110207349A (en) * | 2019-04-26 | 2019-09-06 | 西安建筑科技大学 | A kind of more jet stream coupling regime air outlets for personnel activity region |
| CN112385959A (en) * | 2020-01-06 | 2021-02-23 | 芭泊智能科技(南京)有限公司 | Hand-held airflow device |
| CN212844277U (en) * | 2020-08-14 | 2021-03-30 | 重庆大学 | Downburst storm wind tunnel test wind field simulation device |
| CN213983975U (en) * | 2020-11-30 | 2021-08-17 | 广东美的制冷设备有限公司 | Rectifying guide piece and air conditioner |
| CN113218057A (en) * | 2021-05-28 | 2021-08-06 | 西安建筑科技大学 | Partition plate station air supply system, use method and check method |
Non-Patent Citations (7)
| Title |
|---|
| Numerical and experimental investigation of turbulent three separated jets;Hidouri, A等;APPLIED THERMAL ENGINEERING;第104卷;153-161 * |
| 冷梁技术在办公建筑中的应用与设计;宋应乾;龙惟定;吴玉涛;;暖通空调(11);全文 * |
| 基于CFD与正交试验的偏转通风导流板优化研究;李思师;赵萌;翟英贤;程勇;翁庙成;;建筑热能通风空调(08);25-30 * |
| 射流作用下的吸气流动流场特性;杨洋;王怡;李艳斌;;西南交通大学学报(02);347-353 * |
| 新型壁面贴附式送风模式人员热舒适研究;尹海国;李安桂;刘志永;;建筑科学(04);全文 * |
| 烟草评吸室桌面工位排风及孔板送风的模拟研究;李德英;刘华;;暖通空调(06);85-88 * |
| 高大厂房分层供热数值模拟研究;许志浩, 蔡德源;西南交通大学学报(自然科学版)(03);288-293 * |
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