WO2009018679A1 - Air curtain generating device - Google Patents

Air curtain generating device Download PDF

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Publication number
WO2009018679A1
WO2009018679A1 PCT/CN2007/002357 CN2007002357W WO2009018679A1 WO 2009018679 A1 WO2009018679 A1 WO 2009018679A1 CN 2007002357 W CN2007002357 W CN 2007002357W WO 2009018679 A1 WO2009018679 A1 WO 2009018679A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
air outlet
airflow
section
generating device
Prior art date
Application number
PCT/CN2007/002357
Other languages
French (fr)
Chinese (zh)
Inventor
Shueiyuan Lee
Chengping Chang
Shunchih Wang
Peihsin Pei
Tungsheng Shih
Pohung Lu
Original Assignee
Acxing Industrial Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Acxing Industrial Co., Ltd. filed Critical Acxing Industrial Co., Ltd.
Priority to PCT/CN2007/002357 priority Critical patent/WO2009018679A1/en
Publication of WO2009018679A1 publication Critical patent/WO2009018679A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2028—Removing cooking fumes using an air curtain

Definitions

  • This invention relates to an air curtain generating apparatus, and more particularly to an air curtain generating apparatus which contributes to the flow rate averaging. Background technique
  • Patent No. 5,042,456 the disclosure of which is incorporated herein by reference in its entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire portion.
  • the airflow from the side wall is used to guide the pollution source to flow in the middle.
  • the side wall and back wall structure of Patent No. 5042456 not only limits the size of the table to the upper living space of the operator, but also limits the application range of the device itself.
  • the internal structure of the side wall is complicated, which greatly increases the raw materials and manufacturing costs of the hood ventilation device, which is not conducive to the promotion and popularization of future products.
  • Taiwanese new patent M261663 and the US Patent Publication No. 6752144 refer to a smoke guiding machine that assists the pollution source to discharge the workbench, wherein the smoke guiding machine corresponds to the exhaust machine setting, and the working table An upward air curtain is provided between the smoke exhauster to prevent the pollution source from spreading toward the operator and the work side.
  • the mechanical structure of the smoke guide of the case No. 6752144 is complicated and the cost of parts is also high.
  • the M261663 case has a relatively simple mechanical structure, it does not explain the drainage of the device itself and the flow rate of the air outlet. The drainage is related to the durability of such devices, and the airflow is uniform. It is also related to the effect of the air curtain.
  • the technical problem to be solved by the present invention is to provide an air curtain generating device which is designed to improve the problem of uneven air volume by a change in the aperture of the air outlet hole or the number of air outlet holes, and is provided with a structure for guiding the liquid discharge air curtain generating device.
  • the present invention provides an air curtain generating apparatus comprising at least one air blower and an air duct, wherein the air blower is used to generate an air flow, and the air duct is adapted to receive the air flow generated by the air blower.
  • the air guiding duct includes a closed section for the airflow to pass through, and an air outlet section, wherein the air outlet section receives the airflow passing through the closed section and has a plurality of air outlet holes for blowing the airflow, and the air outlet holes are sequentially arranged according to the airflow flow path.
  • the outlet section is divided into a transition zone corresponding to the closed section and at least one downstream zone having a closed end, wherein the total length per unit length of the downstream zone is designed by the change of the aperture of the outlet hole or the number of outlet holes
  • the cross-sectional area of the wind is gradually increased from the closed end to the turning area, and the total outgoing cross-sectional area per unit length of the turning area is less than or equal to the minimum value of the total outgoing cross-sectional area per unit length of the downstream area, so that individual winds are generated.
  • the airflow blown by the holes forms a uniform air curtain, which increases the enveloping efficiency of the air curtain.
  • the air outlet section of the air duct further includes a guiding slope
  • the air guiding duct further has a drainage tube, wherein the guiding slope guides the liquid flowing in the air outlet section to the closed section, and the drainage tube guide is located in the closed section. The liquid in the section is discharged outside the air duct to avoid accumulation of liquid in the air duct.
  • the utility model has the advantages that the air outlet hole of the air duct has a pore size according to the flow characteristics of the air flow, so that the air flow rate of the air outlet hole is evenly distributed to enhance the surrounding performance of the air curtain, and the air guiding duct is also provided with the guiding slope and the drainage.
  • the tube can help the liquid that inadvertently flows into the air duct to be smoothly discharged.
  • Figure 1 is a perspective view showing a first embodiment of the air curtain generating device of the present invention
  • Figure 2 is a schematic cross-sectional view of the air curtain generating device of Figure 1;
  • Figure 3 is a schematic cross-sectional view of the air outlet section of the air duct of Figure 1;
  • FIG. 4 is a perspective view showing the air curtain generating device disposed on the workbench in the first embodiment of the present invention
  • 5 is a schematic view showing the arrangement of the air outlet holes in the first embodiment of the air curtain generating device of the present invention
  • FIG. 6A is a longitudinal sectional view of the honeycomb type flow sharing plate in the air curtain generating device of the present invention
  • FIG. 7 is a cross-sectional view of the airflow generating device of the present invention.
  • FIG. 7 is a cross-sectional view of the air outlet of the air duct of the present invention.
  • Figure 9 is a schematic view showing the arrangement of the air outlet holes in the fourth embodiment of the air curtain generating device of the present invention
  • Figure 10 is a perspective view showing the fifth embodiment of the air curtain generating device of the present invention;
  • Figure 11 is a perspective view showing a sixth embodiment of the air curtain generating device of the present invention.
  • Figure 12 is a perspective view showing a seventh embodiment of the air curtain generating device of the present invention.
  • Figure 13 is a perspective view showing an eighth embodiment of the air curtain generating device of the present invention.
  • Figure 14 is a perspective view showing a ninth embodiment of the air curtain generating device of the present invention.
  • Drainage tube 50 Workbench
  • the air curtain generating device comprises a blower 10 and an air duct 20.
  • the air curtain generating device of the present invention is used to generate an air curtain 70, which surrounds a pollution source generated by a work table 50, and assists an exhaust machine 60 to discharge the pollution source.
  • the number of the air blowers 10 is not limited, and can be actually implemented according to the work table 50. The area or volume of the path increases.
  • the blower 10 is for generating an air flow, and the blower 10 has an air outlet 11 for blowing air.
  • the air outlet 11 is connected to an air duct 20, and the air flow generated by the air blower 10 is blown into the air duct 20 via the air outlet 11.
  • the air duct 20 is an inner hollow tube body for receiving the airflow generated by the air blower 10.
  • the air duct 20 includes a closed section 21, an air outlet section 22 and a drainage tube 30.
  • the closed section 21 of the air duct 20 includes an inlet side 211 and an outlet side 212, wherein the inlet side 211 communicates with the air outlet 11 of the air blower 10, so that the airflow generated by the air blower 10 passes through the inlet side 211. It is blown into the air duct 20, and the outlet side 212 is connected to the air outlet section 22 of the air duct 20, so that the airflow passing through the closing section 21 is blown into the air outlet section 22 via the outlet side 212.
  • the gate 24 is pivotally disposed on the inner tube wall of the air duct 20 by a torsion spring 25, and the gate 24 is located between the air outlet 11 of the air blower 10 and the closed section 21 of the air duct 20.
  • the torsion spring 25 has a normal force to push the gate 24 toward the closing air outlet 11 to support the gate 24 to normally close the air outlet 11, and the liquid in the air duct 20 can be closed by the air outlet 11 when the shutter 24 is closed. 21 flows into the drain tube 23.
  • the blower 10 blows out the airflow to push the gate 24 to be opened to turn on the inlet side 211 and the outlet side 212 of the closed section 21 of the air duct 20, and guides the airflow generated by the blower 10.
  • the closed section 21 of the air duct 20 is blown.
  • the gate 24 is a plate body having a curved curved surface, and the pipe wall of the air guiding pipe 20 is also a continuous smooth curved surface, so that the airflow generated by the air blower 10 is smoothly guided and turned to reduce the resistance of the airflow. .
  • the draft tube 30 communicates with the closed section 21 of the air duct 20 and is disposed between the inlet side 211 and the outlet side 212 of the closed section 21, adjacent to the inlet side 211.
  • the drain pipe 30 is for guiding the liquid in the closed section 21 to be discharged to the outside of the air duct 20.
  • the air outlet section 22 of the air duct 20 receives the airflow passing through the closed section 21, and has a plurality of air outlet holes 221 for blowing airflow and a guiding slope 222.
  • the air outlet holes 221 of the air outlet section 22 are arranged according to the flow path of the air flow, and are arranged in two rows, wherein the air outlet holes 221 of the adjacent rows are arranged correspondingly, so that the airflows individually blown from the air outlet holes 221 are formed.
  • An air curtain 70 The arrangement of the air outlet holes 221 takes into account the effect of mutual traction between the air flows, and the air flows respectively blown from the air outlet holes 221 of the two adjacent rows. attract each other.
  • the air outlet section 22 of the air duct 20 is divided into a turning area 223 corresponding to the closing section 21 and a downstream area 224 having a closed end 225, respectively.
  • the total air outlet cross-sectional area per unit length of the downstream area 224 is gradually increased from the closed end 225 toward the turning area 223 by the change of the aperture size or the number of openings of the air outlet holes 221 of each area, and the turning area 223 is gradually increased.
  • the total airflow cross-sectional area per unit length is less than or equal to the minimum value of the total airflow cross-sectional area per unit length of the downstream area 224, so that the flow rates of the airflow in the turning zone 223 and the downstream zone 224 can be evenly distributed to avoid the airflow flow path.
  • the air flow of the air outlet hole 221 at the end is excessively weak and affects the surrounding performance of the air curtain 70.
  • the total outlet cross-sectional area described in the preceding paragraph is the sum of the areas of all the outlet holes 221 in a section, and the total outlet cross-sectional area per unit length is the total outlet aperture 221 on the outlet section 22 of the unit length.
  • the turning area 223 of the air outlet section 22 is a region with a large airflow velocity. Therefore, the total length of the unit length can be reduced by opening a small aperture air outlet 221 or opening a smaller number of air outlet holes 221. Wind cross-sectional area.
  • the guiding slope 222 is disposed at the bottom of the air outlet section 22, and is inclined at an angle with the horizontal plane, so that the liquid flows from the air outlet section 22 of the air duct 20 to the closed section 21 of the air duct 20 due to the power effect, so as to guide the outlet.
  • the liquid of the wind section 22 flows into the closed section 21, and the liquid is discharged out of the air duct 20 through the drain pipe 30.
  • the honeycomb type flow equalization plate 26 is disposed on the outlet side 212 of the closed section 21 and is located between the closed section 21 and the outlet section 22 of the air duct 20.
  • the airflow flowing into the closed section 21 of the air duct 20 is first passed through the honeycomb type flow plate 26, and then flows into the air outlet section 22 of the air duct 20.
  • the airflow velocity near the surface of the duct wall is smaller than the airflow velocity in the center of the air duct 20, resulting in uneven flow of the airflow.
  • the honeycomb type flow equalizing plate 26 is used for rectifying the air flow to stabilize the flow field of the air flow and make the flow rate uniform, so that the air flow to the outlet side 212 of the closed section 21 of the air duct 20 is close to a steady flow state. And uniformly flows into the air outlet section 22 of the air duct 20.
  • the air distribution plate 27 is disposed in the air outlet section 22 of the air duct 20 and corresponds to the outlet side 212 of the closing section 21, wherein the air distribution plate 27 is configured to distribute the airflow blown by the outlet side 212 of the closing section 21 The flow that is blown upwards and toward both sides allows the airflow to be blown toward the upper turning zone 223 and the downstream flow zones 222 on both sides according to a predetermined flow rate.
  • the air distribution plate 27 can be, but not limited to, a metal mesh sheet, and the shape thereof can be rectangular, circular or diamond-shaped, wherein the air distribution plate 27 has a through hole distributed according to the air volume to pass The density of the through holes determines the flow of air to all directions.
  • the air curtain generating device of the present embodiment is disposed on a work table 50, and the work table 50 generates a pollution source and has an exhauster 60.
  • the venting machine 60 is disposed above the table 50 and has an exhaust port 61 corresponding to the table 50, and the venting machine 60 generates an exhaust flow at the exhaust port 61 to discharge the pollution from the table 50.
  • the air outlet section 22 of the air duct 20 is formed in a straight line shape, so that the air curtain generating device creates a linear air curtain 70 between the work table 50 and the exhaust machine 60 to match the three closed wall surfaces.
  • the workbench 50 is used.
  • the air curtain 70 forms an air wall between the worktable 50 and the exhauster 60 to surround the pollution source generated by the worktable 50, thereby preventing the pollution source from diffusing toward the open surface of the worktable 50, thereby increasing the collection efficiency of the exhauster 60 for the pollution source. .
  • the air curtain generating device of the present embodiment is applied to the work table 50 as an example, the application range of the present invention is not limited thereto, and the air curtain generating device can also be applied to a common open refrigerated display case, such as fresh food.
  • the fruit and vegetable display cabinet or the fresh meat display cabinet is used to isolate the inner and outer areas of the refrigerated display cabinet through the air curtain 70, thereby reducing the leakage of low temperature gas in the refrigerating display cabinet, in order to maintain the temperature of the refrigerated display cabinet and save power.
  • FIG. 7 is a cross-sectional view of the air outlet section 22 of the air duct 20 according to the second embodiment of the present invention, and the detailed embodiment of the embodiment is substantially the same as the first embodiment.
  • the difference between the two embodiments is that the air outlet section 22 of the air duct 20 cooperates with the relative position of the table 50 and the exhaust machine 60 in the second embodiment, and the top surface of the wind section 22 and the table 50 are tilt.
  • the airflow blown by the air outlet section 22 is inclined at an oblique angle with the table 50, wherein the angle of inclination is matched with the actual condition of the table 50 and the exhauster 60, so that the air curtain 70 faces the row of the exhauster 60.
  • the air port 61 is blown and extends from the air outlet section 22 of the air duct 20 to the inner side edge of the exhaust port 60, thereby enhancing the effect of the air curtain 70 guiding the flow of the pollution source to the exhaust port 61, further assisting the exhaust machine 60 to discharge the pollution source. .
  • FIG. 8 is a schematic view showing the arrangement of the air outlet holes 221 in the third embodiment of the present invention, wherein the detailed embodiment of the present embodiment is substantially the same as the first embodiment, and the difference between the two is only in the air outlet 221 Arrangement.
  • the air outlet holes 221 of the air outlet section 22 are arranged according to the flow path of the air flow, and the arrangement of the two rows is formed, wherein the air outlet holes 221 of the adjacent rows are staggered, so that the air outlet holes 221 are arranged.
  • the more pronounced mutual traction effect is produced between the blown air streams, further enhancing the effect of the air curtain 70.
  • FIG. 9 it is a schematic diagram of the arrangement of the air outlet holes 221 in the fourth embodiment of the present invention.
  • the specific embodiment of the present embodiment is substantially the same as the first embodiment, and the difference between the two is only the air outlet 221 .
  • the air outlet holes 221 of the air outlet section 22 are arranged according to the flow path of the air flow, and are arranged in three rows, wherein the air outlet holes 221 of the adjacent rows are staggered to further enhance the air curtain 70. effect.
  • FIG. 10 it is a perspective view of a fifth embodiment of the present invention.
  • the specific embodiment of the present embodiment is substantially the same as that of the first embodiment, and details are not described herein again.
  • the fifth embodiment differs from the first embodiment in the manner in which the air curtain generating device is applied.
  • the air curtain generating device is applied to an indoor outlet where the cold air is supplied for a long time and has frequent switching times, for example, above the electric door of the general sales store, and the air curtain generating device is activated when the outer outlet is opened to form through the air curtain 70.
  • the air wall avoids indoor and outdoor air convection, and reduces the indoor cold air to the outside, thereby improving the efficiency of the indoor cold room and saving electricity.
  • FIG. 11 is a perspective view of a sixth embodiment of the present invention, and the specific embodiment of the present embodiment is substantially the same as the first embodiment, and details are not described herein again.
  • the difference between the sixth embodiment and the first embodiment lies in the arrangement type of the air outlet section 22 of the air duct 20, which is changed from the linear type in the first embodiment to the type in which the wall surface of the table 50 is matched. state.
  • the air outlet section 22 of the air duct 20 forms an L shape
  • the air outlet section 22 of the air duct 20 forms a closed area with the wall surface of the worktable 50, wherein the closed section 21 of the air duct 20 It is located at the bend of the wind outlet section 22.
  • the air curtain generating device facilitates the manufacture of an L-shaped air curtain 70 between the table 50 and the venting machine 60 for use with the table 50 having two closed walls.
  • FIG. 12 it is a perspective view of a seventh embodiment of the present invention, and the specific embodiment of the present embodiment is substantially the same as that of the first embodiment, and details are not described herein again.
  • the seventh embodiment is formed by connecting two sets of air curtain generating devices as in the sixth embodiment, so that the air outlet sections 22 of the air guiding ducts 20 are connected to each other in a U shape, and the air blowing section 22 of the air duct 20 is provided.
  • a closed area is formed with the wall of the table 50.
  • the two air curtain generating means facilitates the manufacture of a U-shaped air curtain 70 between the table 50 and the venting machine 60 for use with a table 50 having a single closed wall.
  • FIG. 13 is a perspective view of the eighth embodiment of the present invention, and the specific embodiment of the present embodiment is substantially the same as the first embodiment, and details are not described herein again.
  • the eighth embodiment is formed by connecting two sets of air curtain generating devices as in the sixth embodiment, so that the air outlet sections 22 of the air guiding ducts 20 are connected to each other to form a closed rectangle, and the air outlet section 22 of the air duct 20 is A closed area is formed with the wall of the table 50.
  • the two air curtain generating devices facilitate the manufacture of a closed rectangular air curtain 70 between the work table 50 and the exhaust machine 60 for use with the work table 50 without the closed wall surface.
  • the closed section 21 of the air duct 20 is further provided with a distribution box 28 and a plurality of distribution ducts 29, wherein the distribution box 29 is connected to the closed section 21 and one end of each distribution duct 29, and each One end of the air duct 29 is connected to the air outlet section 22 of the air duct 20.
  • the air distribution box 28 is for distributing the airflow blown by the air blower 10, and the airflow is blown into the air distribution ducts 29 evenly, and then blown into the air outlet section 22 of the air duct 20 via the air distribution duct 29. Therefore, in the present embodiment, the honeycomb type flow equalizing plate 26 (shown in FIG. 2) is disposed in each of the air distribution ducts 29 adjacent to the air outlet section 22.
  • the total air outlet cross-sectional area of each section of the air outlet section 22 of the air duct 20 is arranged in accordance with the airflow flow characteristic, so that the air flow rate forming the air curtain 70 is uniform, and the setting of the flow equaling plate 26 is further entered.
  • the airflow flow rate of each of the air outlet sections 22 is averaged, and the performance of the air curtain 70 can be effectively enhanced.
  • the air duct 20 is further provided with a guiding inclined surface 222 and a drainage tube 30, so that the liquid inadvertently flowing into the air guiding tube 20 on the table 50 can be smoothly discharged to prevent the liquid from accumulating in the air guiding tube 20.
  • the air outlet of the air curtain air duct of the present invention has a pore size according to the flow characteristics of the air flow, so that the air flow rate of the air outlet is uniform, so that the air curtain of the present invention has enhanced enveloping efficiency, and the air duct is also provided with a guide bow I.
  • the inclined surface and the bow I flow tube can help the liquid that inadvertently flows into the air duct to be smoothly discharged.

Abstract

An air curtain generating device includes a blower (10) and a transmitting pipe (20), wherein the blower (10) generates an airflow which is transmitted in the transmitting pipe (20). The transmitting pipe (20) comprises a closure segment (21) for transmitting the airflow and an outlet segment (22), wherein the outlet segment (22) transmits the airflow from the closure segment (21) and comprises multiple outlet openings (221) for blowing out the airflow which are disposed in turn on the flow path of the airflow. The outlet segment (22) is divided into a turning section (223) corresponding to the closure segment (21) and a directing section (224) having a closure end (225), the total outlet sectional area per length of the directing section (224) gradually increases from the closure end (225) to the turning section (223), the total outlet sectional area per length of the turning section (223) is less than or equals to the minimal total outlet sectional area per length of the directing section (225), consequently to make the airflow from the air opening (221) form a uniform air curtain.

Description

气帘产生装置 技术领域  Air curtain generating device
本发明涉及一种气帘产生装置，尤其涉及一种有助于气流流量平均的气帘 产生装置。 背景技术  BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an air curtain generating apparatus, and more particularly to an air curtain generating apparatus which contributes to the flow rate averaging. Background technique
在许多会产生有害污染源的工作场所，如具有油烟，挥发性有机溶剂、铅、 粉尘或特定化学物质的运作场所，一般都依实际需求在工作台上方设置局部排 气装置，将污染源集中排放处理以维护人体健康。最常见的局部排气装置便是 装设于工作台上方的排气机，但是此类排气机的捕集效率会受到污染源侧向扩 散或工作台与排气机的安装高度的影响，而导致其排气效果不好。为解决上述 的问题， 便出现一种具背墙、侧墙与前拉门的排气柜， 此种排气柜虽可减少环 境侧风的影响，但由于排气柜侧墙与前拉门的结构使得工作台大小与操作者上 肢活动空间都受到限制， 而且前拉门的设计于作业上并不方便。  In many workplaces that generate harmful sources of pollution, such as those with soot, volatile organic solvents, lead, dust or specific chemicals, local exhaust devices are generally placed above the workbench according to actual needs. To maintain human health. The most common local exhaust is the exhaust installed above the workbench, but the collection efficiency of such exhausts can be affected by the lateral spread of the pollution source or the installation height of the workbench and the exhaust. Causes its exhaust effect is not good. In order to solve the above problems, there is a ventilating cabinet with a back wall, a side wall and a front sliding door. Although the venting cabinet can reduce the influence of the ambient crosswind, the exhaust cabinet side wall and the front sliding door The structure makes the size of the table and the upper living space of the operator limited, and the design of the front sliding door is not convenient.
美国专利公告第 5042456号专利案，提出一种具有侧墙与背墙结构的气罩 通风装置，此气罩通风装置于工作台和操作者间提供向上气帘，并在侧墙上提 供有垂直于侧墙的气流， 以导引污染源往中间流动。 然而， 5042456号专利案 的侧墙与背墙结构不仅使工作台大小与操作者上肢活动空间受到限制，也限缩 了装置本身的应用范围。另外， 侧墙内部的结构复杂， 使此种气罩通风装置的 原料及制造成本大增， 不利于日后产品的推广与普及。  U.S. Patent No. 5,042,456, the disclosure of which is incorporated herein by reference in its entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire portion The airflow from the side wall is used to guide the pollution source to flow in the middle. However, the side wall and back wall structure of Patent No. 5042456 not only limits the size of the table to the upper living space of the operator, but also limits the application range of the device itself. In addition, the internal structure of the side wall is complicated, which greatly increases the raw materials and manufacturing costs of the hood ventilation device, which is not conducive to the promotion and popularization of future products.
又如中国台湾新型专利 M261663号以及美国专利公告第 6752144号专利 案，两案都提及一种辅助污染源排出工作台的导烟机，其中导烟机对应于排气 机设置，而于工作台与排烟机之间提供向上气帘， 以防止污染源往操作者方向 及工作台侧向扩散。其中， 6752144号案的导烟机的机械结构较为复杂且零件 成本也较高。而 M261663号案虽拥有相对简单的机械构造，但对于装置本身的 排水性与出风孔的气流流量方面并未多加说明，其中排水性即与此类装置的耐 用度有关， 而气流流量是否均匀也关系着气帘的效果。  Another example is the Taiwanese new patent M261663 and the US Patent Publication No. 6752144. Both cases refer to a smoke guiding machine that assists the pollution source to discharge the workbench, wherein the smoke guiding machine corresponds to the exhaust machine setting, and the working table An upward air curtain is provided between the smoke exhauster to prevent the pollution source from spreading toward the operator and the work side. Among them, the mechanical structure of the smoke guide of the case No. 6752144 is complicated and the cost of parts is also high. Although the M261663 case has a relatively simple mechanical structure, it does not explain the drainage of the device itself and the flow rate of the air outlet. The drainage is related to the durability of such devices, and the airflow is uniform. It is also related to the effect of the air curtain.
因此，现有技术的导烟机存在出风量不均及出风管道中液体不易排出的问 题。 发明公开 Therefore, the prior art cigarette guiding machine has a problem that the air volume is uneven and the liquid in the air outlet duct is not easily discharged. Invention disclosure
本发明所要解决的技术问题在于提供一种气帘产生装置，通过出风孔孔径 或出风孔数量的变化设计改善出风量不均匀的问题，并设置有导引液体排出气 帘产生装置的构造。  SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide an air curtain generating device which is designed to improve the problem of uneven air volume by a change in the aperture of the air outlet hole or the number of air outlet holes, and is provided with a structure for guiding the liquid discharge air curtain generating device.
为实现前述的目的，本发明提供一种气帘产生装置，包含有至少一鼓风机 及一导风管，其中鼓风机用以产生一气流，而导风管则承接鼓风机产生的气流。 导风管包含有一供气流通过的封闭段及一出风段，其中出风段承接通过封闭段 的气流并且具有多个供气流吹出的出风孔， 而出风孔依气流流动路径依序排 列。 出风段被区分为一对应于封闭段的转折区及至少一具有一封闭端的顺流 区，其中通过出风孔孔径或出风孔数量的变化设计，使顺流区的单位长度的总 出风截面积由封闭端朝转折区逐渐加大，而转折区的单位长度的总出风截面积 小于或等于顺流区的单位长度的总出风截面积的最小值，借以使个别自出风孔 吹出的气流形成一流量均匀的气帘， 而增加气帘的包围效能。此外， 导风管的 出风段还包含一导引斜面，而导风管更具有一引流管，其中导引斜面导引位于 出风段的液体流动至封闭段， 而引流管导引位于封闭段的液体排出导风管外， 借以避免液体囤积于导风管中。  In order to achieve the foregoing object, the present invention provides an air curtain generating apparatus comprising at least one air blower and an air duct, wherein the air blower is used to generate an air flow, and the air duct is adapted to receive the air flow generated by the air blower. The air guiding duct includes a closed section for the airflow to pass through, and an air outlet section, wherein the air outlet section receives the airflow passing through the closed section and has a plurality of air outlet holes for blowing the airflow, and the air outlet holes are sequentially arranged according to the airflow flow path. . The outlet section is divided into a transition zone corresponding to the closed section and at least one downstream zone having a closed end, wherein the total length per unit length of the downstream zone is designed by the change of the aperture of the outlet hole or the number of outlet holes The cross-sectional area of the wind is gradually increased from the closed end to the turning area, and the total outgoing cross-sectional area per unit length of the turning area is less than or equal to the minimum value of the total outgoing cross-sectional area per unit length of the downstream area, so that individual winds are generated. The airflow blown by the holes forms a uniform air curtain, which increases the enveloping efficiency of the air curtain. In addition, the air outlet section of the air duct further includes a guiding slope, and the air guiding duct further has a drainage tube, wherein the guiding slope guides the liquid flowing in the air outlet section to the closed section, and the drainage tube guide is located in the closed section. The liquid in the section is discharged outside the air duct to avoid accumulation of liquid in the air duct.
本发明的功效在于，导风管的出风孔依气流流动特性配置其孔径大小，使 吹出出风孔的气流流量均匀而加强气帘的包围效能，而导风管还设置有导引斜 面及引流管， 可帮助不慎流入导风管的液体顺利地排出。  The utility model has the advantages that the air outlet hole of the air duct has a pore size according to the flow characteristics of the air flow, so that the air flow rate of the air outlet hole is evenly distributed to enhance the surrounding performance of the air curtain, and the air guiding duct is also provided with the guiding slope and the drainage. The tube can help the liquid that inadvertently flows into the air duct to be smoothly discharged.
以下在实施方式中详细叙述本发明的详细特征以及优点，其内容足以使本 领域技术人员了解本发明的技术内容并据以实施，且根据本说明书所揭露的内 容、权利要求及附图，本领域技术人员可轻易地理解本发明相关的目的及优点。 附图简要说明  The detailed features and advantages of the present invention are described in detail in the embodiments of the present invention. The objects and advantages associated with the present invention will be readily understood by those skilled in the art. BRIEF DESCRIPTION OF THE DRAWINGS
图 1为本发明气帘产生装置中第一实施例的立体示意图；  Figure 1 is a perspective view showing a first embodiment of the air curtain generating device of the present invention;
图 2为图 1中气帘产生装置的剖面示意图；  Figure 2 is a schematic cross-sectional view of the air curtain generating device of Figure 1;
图 3为图 1中导风管的出风段的剖面示意图；  Figure 3 is a schematic cross-sectional view of the air outlet section of the air duct of Figure 1;
图 4 为本发明的第一实施例中， 气帘产生装置配置于工作台的立体示意 图； 图 5为本发明气帘产生装置的第一实施例中， 出风孔的排列示意图； 图 6A为本发明气帘产生装置中蜂巢式均流板的纵向剖面示意图； 图 6B为本发明气帘产生装置中蜂巢式均流板的横向剖面示意图； 图 7 本发明气帘产生装置的第二实施例中， 导风管的出风段的剖面示意 图 8为本发明气帘产生装置的第三实施例中， 出风孔的排列示意图; 图 9为本发明气帘产生装置的第四实施例中， 出风孔的排列示意图; 图 10为本发明气帘产生装置中第五实施例的立体示意图； Figure 4 is a perspective view showing the air curtain generating device disposed on the workbench in the first embodiment of the present invention; 5 is a schematic view showing the arrangement of the air outlet holes in the first embodiment of the air curtain generating device of the present invention; FIG. 6A is a longitudinal sectional view of the honeycomb type flow sharing plate in the air curtain generating device of the present invention; FIG. 7 is a cross-sectional view of the airflow generating device of the present invention. FIG. 7 is a cross-sectional view of the air outlet of the air duct of the present invention. Figure 9 is a schematic view showing the arrangement of the air outlet holes in the fourth embodiment of the air curtain generating device of the present invention; Figure 10 is a perspective view showing the fifth embodiment of the air curtain generating device of the present invention;
图 11为本发明气帘产生装置中第六实施例的立体示意图；  Figure 11 is a perspective view showing a sixth embodiment of the air curtain generating device of the present invention;
图 12为本发明气帘产生装置中第七实施例的立体示意图；  Figure 12 is a perspective view showing a seventh embodiment of the air curtain generating device of the present invention;
图 13为本发明气帘产生装置中第八实施例的立体示意图； 及  Figure 13 is a perspective view showing an eighth embodiment of the air curtain generating device of the present invention;
图 14为本发明气帘产生装置中第九实施例的立体示意图。  Figure 14 is a perspective view showing a ninth embodiment of the air curtain generating device of the present invention.
其中， 附图标记- Where the reference mark -
10： 鼓风机 11： 出风口 10: Blower 11: Air outlet
20： 导风管 21： 封闭段  20: air duct 21: closed section
211： 入口侧 212： 出口侧  211: inlet side 212: outlet side
22： 出风段 221： 出风孔  22: Wind outlet 221: Ventilation hole
222： 导引斜面 223： 转折区  222: guiding slope 223: turning area
224： 顺流区 225： 封闭端  224: downstream area 225: closed end
24： 闸门 25： 扭力弹簧  24: Gate 25: Torsion spring
26： 蜂巢式均流板 27： 配风板  26: Honeycomb type flow plate 27: Air distribution plate
28： 配风箱 29： 配风管  28: distribution box 29: distribution duct
30： 引流管 50： 工作台  30: Drainage tube 50: Workbench
60： 排气机 61： 排气口  60: Exhaust machine 61: Exhaust port
70： 气帘 本发明的最佳实施方式  70: Air curtain, preferred embodiment of the invention
为使对本发明的目的、构造、特征、及其功能有进一步的了解， 兹配合实 施例详细说明如下。  In order to further understand the objects, structures, features, and functions of the present invention, the embodiments are described in detail below.
请参阅图 1、 图 2、 图 3及图 4所示， 为本发明第一实施例所提供的一种 气帘产生装置， 此一气帘产生装置包含有一鼓风机 10及一导风管 20。 本发明 的气帘产生装置用以产生一气帘 70， 将一工作台 50产生的污染源包围， 并辅 助一排气机 60将污染源排出，其中鼓风机 10的数量并不受局限，可依工作台 50实际面积或容间径行增加。 Referring to FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , a first embodiment of the present invention is provided. The air curtain generating device comprises a blower 10 and an air duct 20. The air curtain generating device of the present invention is used to generate an air curtain 70, which surrounds a pollution source generated by a work table 50, and assists an exhaust machine 60 to discharge the pollution source. The number of the air blowers 10 is not limited, and can be actually implemented according to the work table 50. The area or volume of the path increases.
鼓风机 10用以产生一气流， 且鼓风机 10具有一出风口 11供气流吹出。 出风口 11连通一导风管 20， 其中鼓风机 10产生的气流经由出风口 11吹送至 导风管 20内。  The blower 10 is for generating an air flow, and the blower 10 has an air outlet 11 for blowing air. The air outlet 11 is connected to an air duct 20, and the air flow generated by the air blower 10 is blown into the air duct 20 via the air outlet 11.
导风管 20为一内部中空的管体， 用以承接鼓风机 10产生的气流，其中导 风管 20包含有一封闭段 21、 一出风段 22及一引流管 30。  The air duct 20 is an inner hollow tube body for receiving the airflow generated by the air blower 10. The air duct 20 includes a closed section 21, an air outlet section 22 and a drainage tube 30.
如图 2及图 5所示，导风管 20的封闭段 21包含有一入口侧 211及一出口 侧 212，其中入口侧 211连通鼓风机 10的出风口 11，使鼓风机 10产生的气流 经由入口侧 211吹入导风管 20中，而出口侧 212则连通至导风管 20的出风段 22， 使通过封闭段 21的气流经由出口侧 212吹入出风段 22中。  As shown in FIG. 2 and FIG. 5, the closed section 21 of the air duct 20 includes an inlet side 211 and an outlet side 212, wherein the inlet side 211 communicates with the air outlet 11 of the air blower 10, so that the airflow generated by the air blower 10 passes through the inlet side 211. It is blown into the air duct 20, and the outlet side 212 is connected to the air outlet section 22 of the air duct 20, so that the airflow passing through the closing section 21 is blown into the air outlet section 22 via the outlet side 212.
闸门 24通过一扭力弹簧 25枢设于导风管 20的内侧管壁， 而使闸门 24 位于鼓风机 10的出风口 11与导风管 20的封闭段 21之间。 其中扭力弹簧 25 具有一常态将闸门 24朝关闭出风口 11推的力， 以支撑闸门 24常态地关闭出 风口 11， 并使导风管 20内的液体于闸门 24关闭出风口 11时可由封闭段 21 流入引流管 23。 当鼓风机 10启动并吹出气流时， 鼓风机 10吹出气流则推动 闸门 24时呈开启状态， 以导通导风管 20的封闭段 21的入口侧 211与出口侧 212， 并导引鼓风机 10产生的气流吹入导风管 20的封闭段 21。 其中闸门 24 为一具有弧形曲面的板体， 且导风管 20的管壁弯折处也为连续平滑的曲面， 使鼓风机 10产生的气流顺利地导引并转向， 以降低气流流动的阻力。  The gate 24 is pivotally disposed on the inner tube wall of the air duct 20 by a torsion spring 25, and the gate 24 is located between the air outlet 11 of the air blower 10 and the closed section 21 of the air duct 20. The torsion spring 25 has a normal force to push the gate 24 toward the closing air outlet 11 to support the gate 24 to normally close the air outlet 11, and the liquid in the air duct 20 can be closed by the air outlet 11 when the shutter 24 is closed. 21 flows into the drain tube 23. When the air blower 10 starts and blows out the airflow, the blower 10 blows out the airflow to push the gate 24 to be opened to turn on the inlet side 211 and the outlet side 212 of the closed section 21 of the air duct 20, and guides the airflow generated by the blower 10. The closed section 21 of the air duct 20 is blown. The gate 24 is a plate body having a curved curved surface, and the pipe wall of the air guiding pipe 20 is also a continuous smooth curved surface, so that the airflow generated by the air blower 10 is smoothly guided and turned to reduce the resistance of the airflow. .
引流管 30连通导风管 20的封闭段 21，并且设置于封闭段 21的入口侧 211 与出口侧 212之间， 而靠近入口侧 211。 引流管 30用以导引位于封闭段 21中 的液体排出至导风管 20外。  The draft tube 30 communicates with the closed section 21 of the air duct 20 and is disposed between the inlet side 211 and the outlet side 212 of the closed section 21, adjacent to the inlet side 211. The drain pipe 30 is for guiding the liquid in the closed section 21 to be discharged to the outside of the air duct 20.
导风管 20的出风段 22承接通过封闭段 21的气流， 并具有多个供气流吹 出的出风孔 221及一导引斜面 222。 出风段 22的出风孔 221依气流流动路径 排列， 并形成二排的排列方式， 其中相邻排的各出风孔 221间呈对应配置， 以 使个别自各出风孔 221吹出的气流形成一气帘 70。 前述出风孔 221的配置方 式考虑到气流间互相牵引的效应，使分别自两相邻排的出风孔 221吹出的气流 互相吸引。 The air outlet section 22 of the air duct 20 receives the airflow passing through the closed section 21, and has a plurality of air outlet holes 221 for blowing airflow and a guiding slope 222. The air outlet holes 221 of the air outlet section 22 are arranged according to the flow path of the air flow, and are arranged in two rows, wherein the air outlet holes 221 of the adjacent rows are arranged correspondingly, so that the airflows individually blown from the air outlet holes 221 are formed. An air curtain 70. The arrangement of the air outlet holes 221 takes into account the effect of mutual traction between the air flows, and the air flows respectively blown from the air outlet holes 221 of the two adjacent rows. attract each other.
另外， 导风管 20的出风段 22被区分为一对应于封闭段 21的转折区 223 及二分别具有一封闭端 225的顺流区 224。其中通过各区的出风孔 221的孔径 大小或开设数量的变化配置下，使顺流区 224的单位长度的总出风截面积由封 闭端 225朝转折区 223逐渐加大，而转折区 223的单位长度的总出风截面积小 于或等于顺流区 224的单位长度的总出风截面积的最小值， 借以使转折区 223 及顺流区 224的气流的流量能平均分布， 避免气流流动路径末端的出风孔 221 的气流过度微弱而影响气帘 70的包围效能。  Further, the air outlet section 22 of the air duct 20 is divided into a turning area 223 corresponding to the closing section 21 and a downstream area 224 having a closed end 225, respectively. The total air outlet cross-sectional area per unit length of the downstream area 224 is gradually increased from the closed end 225 toward the turning area 223 by the change of the aperture size or the number of openings of the air outlet holes 221 of each area, and the turning area 223 is gradually increased. The total airflow cross-sectional area per unit length is less than or equal to the minimum value of the total airflow cross-sectional area per unit length of the downstream area 224, so that the flow rates of the airflow in the turning zone 223 and the downstream zone 224 can be evenly distributed to avoid the airflow flow path. The air flow of the air outlet hole 221 at the end is excessively weak and affects the surrounding performance of the air curtain 70.
前段所述的总出风截面积为一区段中所有出风孔 221的面积的总合，而单 位长度的总出风截面积为单位长度的出风段 22上的所有出风孔 221的面积的 总合。 其中， 出风段 22的转折区 223为气流流速较大的区域， 所以此处可通 过开设较小孔径的出风孔 221或是开设数量较少的出风孔 221来减少单位长度 的总出风截面积。  The total outlet cross-sectional area described in the preceding paragraph is the sum of the areas of all the outlet holes 221 in a section, and the total outlet cross-sectional area per unit length is the total outlet aperture 221 on the outlet section 22 of the unit length. The sum of the areas. The turning area 223 of the air outlet section 22 is a region with a large airflow velocity. Therefore, the total length of the unit length can be reduced by opening a small aperture air outlet 221 or opening a smaller number of air outlet holes 221. Wind cross-sectional area.
导引斜面 222设置于出风段 22的底部， 与水平面倾斜夹一角度， 使液体 因電力效应由导风管 20的出风段 22流向导风管 20的封闭段 21， 借以导引位 于出风段 22的液体流动进入封闭段 21内， 再通过引流管 30将液体排出导风 管 20外。  The guiding slope 222 is disposed at the bottom of the air outlet section 22, and is inclined at an angle with the horizontal plane, so that the liquid flows from the air outlet section 22 of the air duct 20 to the closed section 21 of the air duct 20 due to the power effect, so as to guide the outlet. The liquid of the wind section 22 flows into the closed section 21, and the liquid is discharged out of the air duct 20 through the drain pipe 30.
请续参阅图 2、 图 6A及图 6B所示， 图中蜂巢式均流板 26设置于封闭段 21的出口侧 212， 并位于导风管 20的封闭段 21与出风段 22之间， 使流入导 风管 20的封闭段 21的气流先通过蜂巢式均流板 26后，再流入导风管 20的出 风段 22。 当气流于导风管 20中流动时， 因气流与导风管 20管壁的摩擦阻力 影响， 使靠近管壁表面的气流流速会小于导风管 20中央的气流流速， 造成气 流的流量不均， 而蜂巢式均流板 26用以对于气流进行整流， 以稳定气流的流 场并使其流速均匀，使气流流至导风管 20的封闭段 21的出口侧 212时呈接近 稳流的状态， 而均匀地流入导风管 20的出风段 22。  Referring to FIG. 2, FIG. 6A and FIG. 6B, the honeycomb type flow equalization plate 26 is disposed on the outlet side 212 of the closed section 21 and is located between the closed section 21 and the outlet section 22 of the air duct 20. The airflow flowing into the closed section 21 of the air duct 20 is first passed through the honeycomb type flow plate 26, and then flows into the air outlet section 22 of the air duct 20. When the airflow flows in the air duct 20, due to the frictional resistance of the airflow and the wall of the air duct 20, the airflow velocity near the surface of the duct wall is smaller than the airflow velocity in the center of the air duct 20, resulting in uneven flow of the airflow. The honeycomb type flow equalizing plate 26 is used for rectifying the air flow to stabilize the flow field of the air flow and make the flow rate uniform, so that the air flow to the outlet side 212 of the closed section 21 of the air duct 20 is close to a steady flow state. And uniformly flows into the air outlet section 22 of the air duct 20.
配风板 27设置于导风管 20的出风段 22中，并且对应于封闭段 21的出口 侧 212， 其中配风板 27用以分配由封闭段 21的出口侧 212吹出的气流均勾地 朝上及朝两侧吹出的流量， 可使气流依预设的流量分别吹向上方的转折区 223 及两侧的顺流区 222。 配风板 27可为但不局限于一金属网状薄板， 其型态可 以是矩形、 圆形或菱形， 其中配风板 27上具有依配风量分布的通孔， 以通过 通孔的配置密度决定吹往各个方向气流的流量。 The air distribution plate 27 is disposed in the air outlet section 22 of the air duct 20 and corresponds to the outlet side 212 of the closing section 21, wherein the air distribution plate 27 is configured to distribute the airflow blown by the outlet side 212 of the closing section 21 The flow that is blown upwards and toward both sides allows the airflow to be blown toward the upper turning zone 223 and the downstream flow zones 222 on both sides according to a predetermined flow rate. The air distribution plate 27 can be, but not limited to, a metal mesh sheet, and the shape thereof can be rectangular, circular or diamond-shaped, wherein the air distribution plate 27 has a through hole distributed according to the air volume to pass The density of the through holes determines the flow of air to all directions.
请再参阅图 1至图 6B所示， 其中本实施例的气帘产生装置设置于一工作 台 50， 而工作台 50产生污染源并具有一排气机 60。 排气机 60设置于工作台 50的上方并具有一对应工作台 50的排气口 61，且排气机 60于排气口 61产生 一排气流， 将污染源自工作台 50排出。 本实施例中导风管 20的出风段 22形 成一直线形，使气帘产生装置于工作台 50与排气机 60之间制造出一直线型的 气帘 70， 以配合具有三个封闭墙面的工作台 50使用。 气帘 70于工作台 50与 排气机 60之间形成一空气壁面， 以包围工作台 50产生的污染源，避免污染源 朝工作台 50的开放面扩散， 进而增加排气机 60对于污染源的捕集效率。  Referring to FIG. 1 to FIG. 6B, the air curtain generating device of the present embodiment is disposed on a work table 50, and the work table 50 generates a pollution source and has an exhauster 60. The venting machine 60 is disposed above the table 50 and has an exhaust port 61 corresponding to the table 50, and the venting machine 60 generates an exhaust flow at the exhaust port 61 to discharge the pollution from the table 50. In this embodiment, the air outlet section 22 of the air duct 20 is formed in a straight line shape, so that the air curtain generating device creates a linear air curtain 70 between the work table 50 and the exhaust machine 60 to match the three closed wall surfaces. The workbench 50 is used. The air curtain 70 forms an air wall between the worktable 50 and the exhauster 60 to surround the pollution source generated by the worktable 50, thereby preventing the pollution source from diffusing toward the open surface of the worktable 50, thereby increasing the collection efficiency of the exhauster 60 for the pollution source. .
本实施例的气帘产生装置虽然以应用于工作台 50为例， 但本发明的应用 范围并不被局限于此， 此种气帘产生装置也可应用于常见的开放式冷藏展示 柜， 如生鲜蔬果展示柜或生鲜肉品展示柜， 以通过气帘 70来隔离冷藏展示柜 内外区域，减少冷藏展示柜中低温气体外泄， 以维持冷藏展示柜的温度并节省 电力。  Although the air curtain generating device of the present embodiment is applied to the work table 50 as an example, the application range of the present invention is not limited thereto, and the air curtain generating device can also be applied to a common open refrigerated display case, such as fresh food. The fruit and vegetable display cabinet or the fresh meat display cabinet is used to isolate the inner and outer areas of the refrigerated display cabinet through the air curtain 70, thereby reducing the leakage of low temperature gas in the refrigerating display cabinet, in order to maintain the temperature of the refrigerated display cabinet and save power.
请参阅图 4及图 7所示， 其中图 7为本发明第二实施例中导风管 20的出 风段 22的剖面示意图， 而本实施例的细部实施方式大致于第一实施例相同， 但两实施例的差异之处在于，第二实施例中导风管 20的出风段 22配合工作台 50与排气机 60的相对位置， 而将出风段 22的顶面与工作台 50倾斜。 如此， 由出风段 22吹出的气流便与工作台 50夹一倾斜角度，其中所夹的倾斜角度配 合工作台 50与排气机 60的实际状况设计，使气帘 70朝向排气机 60的排气口 61吹拂， 并由导风管 20的出风段 22延伸至排气口 60的内侧边缘， 借以加强 气帘 70导引污染源流动至排气口 61的效果， 进一步辅助排气机 60排出污染 源。  Referring to FIG. 4 and FIG. 7 , FIG. 7 is a cross-sectional view of the air outlet section 22 of the air duct 20 according to the second embodiment of the present invention, and the detailed embodiment of the embodiment is substantially the same as the first embodiment. However, the difference between the two embodiments is that the air outlet section 22 of the air duct 20 cooperates with the relative position of the table 50 and the exhaust machine 60 in the second embodiment, and the top surface of the wind section 22 and the table 50 are tilt. Thus, the airflow blown by the air outlet section 22 is inclined at an oblique angle with the table 50, wherein the angle of inclination is matched with the actual condition of the table 50 and the exhauster 60, so that the air curtain 70 faces the row of the exhauster 60. The air port 61 is blown and extends from the air outlet section 22 of the air duct 20 to the inner side edge of the exhaust port 60, thereby enhancing the effect of the air curtain 70 guiding the flow of the pollution source to the exhaust port 61, further assisting the exhaust machine 60 to discharge the pollution source. .
如图 8所示，为本发明第三实施例中出风孔 221的排列示意图，其中本实 施例的细部实施方式大致与第一实施例相同， 而两者的差异仅在于出风孔 221 的排列方式。 第三实施例中出风段 22的出风孔 221依气流流动路径排列， 并 形成二排的排列方式，其中相邻排的各出风孔 221间呈交错列置，使各出风孔 221吹出的气流间产生更显著的互相牵引效应， 进一步增强气帘 70的效果。  FIG. 8 is a schematic view showing the arrangement of the air outlet holes 221 in the third embodiment of the present invention, wherein the detailed embodiment of the present embodiment is substantially the same as the first embodiment, and the difference between the two is only in the air outlet 221 Arrangement. In the third embodiment, the air outlet holes 221 of the air outlet section 22 are arranged according to the flow path of the air flow, and the arrangement of the two rows is formed, wherein the air outlet holes 221 of the adjacent rows are staggered, so that the air outlet holes 221 are arranged. The more pronounced mutual traction effect is produced between the blown air streams, further enhancing the effect of the air curtain 70.
如图 9所示，为本发明第四实施例中出风孔 221的排列示意图，其中本实 施例的具体实施方式大致与第一实施例相同， 而两者的差异仅在于出风孔 221 的排列方式及排数。 第四实施例中出风段 22的出风孔 221依气流流动路径排 列， 并形成三排的排列方式， 其中相邻排的各出风孔 221间呈交错列置， 以进 一步增强气帘 70的效果。 As shown in FIG. 9 , it is a schematic diagram of the arrangement of the air outlet holes 221 in the fourth embodiment of the present invention. The specific embodiment of the present embodiment is substantially the same as the first embodiment, and the difference between the two is only the air outlet 221 . Arrangement and number of rows. In the fourth embodiment, the air outlet holes 221 of the air outlet section 22 are arranged according to the flow path of the air flow, and are arranged in three rows, wherein the air outlet holes 221 of the adjacent rows are staggered to further enhance the air curtain 70. effect.
如图 10所示， 为本发明第五实施例的立体示意图， 其中本实施例的具体 实施方式大致与第一实施例相同，不再赘述。然而， 第五实施例与第一实施例 的差异之处在于气帘产生装置的应用方式。第五实施例中气帘产生装置应用于 长时间供应冷气的室内并且开关次数频繁的对外出口处，例如一般量贩卖场的 电动门上方， 令气帘产生装置于对外出口开放时启动， 以通过气帘 70形成空 气壁面避免室内与室外的空气对流，而减少室内的冷气向室外流失，进而提高 室内的冷房效率并节省电力。  As shown in FIG. 10, it is a perspective view of a fifth embodiment of the present invention. The specific embodiment of the present embodiment is substantially the same as that of the first embodiment, and details are not described herein again. However, the fifth embodiment differs from the first embodiment in the manner in which the air curtain generating device is applied. In the fifth embodiment, the air curtain generating device is applied to an indoor outlet where the cold air is supplied for a long time and has frequent switching times, for example, above the electric door of the general sales store, and the air curtain generating device is activated when the outer outlet is opened to form through the air curtain 70. The air wall avoids indoor and outdoor air convection, and reduces the indoor cold air to the outside, thereby improving the efficiency of the indoor cold room and saving electricity.
如图 11所示， 为本发明第六实施例的立体示意图， 其中本实施例的具体 实施方式大致与第一实施例相同，不再赘述。然而， 第六实施例与第一实施例 的差异之处在于导风管 20的出风段 22的设置型态，由第一实施例中的直线型 态改变为配合工作台 50周遭壁面的型态。 第六实施例中导风管 20的出风段 22形成一 L字形，而使导风管 20的出风段 22与工作台 50的壁面形成一封闭 区域， 其中导风管 20的封闭段 21则位于出风段 22的弯折处。 如此， 气帘产 生装置便于工作台 50与排气机 60之间制造出一 L型的气帘 70， 以配合具有 二个封闭墙面的工作台 50使用。  FIG. 11 is a perspective view of a sixth embodiment of the present invention, and the specific embodiment of the present embodiment is substantially the same as the first embodiment, and details are not described herein again. However, the difference between the sixth embodiment and the first embodiment lies in the arrangement type of the air outlet section 22 of the air duct 20, which is changed from the linear type in the first embodiment to the type in which the wall surface of the table 50 is matched. state. In the sixth embodiment, the air outlet section 22 of the air duct 20 forms an L shape, and the air outlet section 22 of the air duct 20 forms a closed area with the wall surface of the worktable 50, wherein the closed section 21 of the air duct 20 It is located at the bend of the wind outlet section 22. Thus, the air curtain generating device facilitates the manufacture of an L-shaped air curtain 70 between the table 50 and the venting machine 60 for use with the table 50 having two closed walls.
如图 12所示， 为本发明第七实施例的立体示意图， 其中本实施例的具体 实施方式大致与第一实施例相同，不再赘述。然而， 第七实施例由两组如同第 六实施例的气帘产生装置连接而成，使各导风管 20的出风段 22相互连接成一 U字形， 而使导风管 20的出风段 22与工作台 50的壁面形成一封闭区域。 如 此，两气帘产生装置便于工作台 50与排气机 60之间制造出一 U型的气帘 70， 以配合具有单一封闭墙面的工作台 50使用。  As shown in FIG. 12, it is a perspective view of a seventh embodiment of the present invention, and the specific embodiment of the present embodiment is substantially the same as that of the first embodiment, and details are not described herein again. However, the seventh embodiment is formed by connecting two sets of air curtain generating devices as in the sixth embodiment, so that the air outlet sections 22 of the air guiding ducts 20 are connected to each other in a U shape, and the air blowing section 22 of the air duct 20 is provided. A closed area is formed with the wall of the table 50. Thus, the two air curtain generating means facilitates the manufacture of a U-shaped air curtain 70 between the table 50 and the venting machine 60 for use with a table 50 having a single closed wall.
如图 13所示， 为本发明第八实施例的立体示意图， 其中本实施例的具体 实施方式大致与第一实施例相同，不再赘述。然而， 第八实施例由两组如同第 六实施例的气帘产生装置连接而成，使各导风管 20的出风段 22相互连接成一 封闭矩形， 而导风管 20的出风段 22则与工作台 50的壁面形成一封闭区域。 如此，两气帘产生装置便于工作台 50与排气机 60之间制造出一封闭矩形的气 帘 70， 以配合不具有封闭墙面的工作台 50使用。 如图 14所示， 为本发明第九实施例的立体示意图， 其中本实施例的具体 实施方式大致与第八实施例相同， 不再赘述。 然而， 第九实施例中导风管 20 的封闭段 21还设置有一配风箱 28及多个配风管 29，其中配风箱 29连接于封 闭段 21及各配风管 29的一端，而且各配风管 29的一端连接于导风管 20的出 风段 22。 配风箱 28用以分配由鼓风机 10吹出的气流， 使气流平均地吹入各 配风管 29， 然后再经由配风管 29吹入导风管 20的出风段 22。 因此， 在本实 施例中蜂巢式均流板 26 (如图 2所示)是设置于各配风管 29中邻近出风段 22 处。 FIG. 13 is a perspective view of the eighth embodiment of the present invention, and the specific embodiment of the present embodiment is substantially the same as the first embodiment, and details are not described herein again. However, the eighth embodiment is formed by connecting two sets of air curtain generating devices as in the sixth embodiment, so that the air outlet sections 22 of the air guiding ducts 20 are connected to each other to form a closed rectangle, and the air outlet section 22 of the air duct 20 is A closed area is formed with the wall of the table 50. Thus, the two air curtain generating devices facilitate the manufacture of a closed rectangular air curtain 70 between the work table 50 and the exhaust machine 60 for use with the work table 50 without the closed wall surface. FIG. 14 is a perspective view of a ninth embodiment of the present invention, and the specific embodiment of the present embodiment is substantially the same as the eighth embodiment, and details are not described herein again. However, in the ninth embodiment, the closed section 21 of the air duct 20 is further provided with a distribution box 28 and a plurality of distribution ducts 29, wherein the distribution box 29 is connected to the closed section 21 and one end of each distribution duct 29, and each One end of the air duct 29 is connected to the air outlet section 22 of the air duct 20. The air distribution box 28 is for distributing the airflow blown by the air blower 10, and the airflow is blown into the air distribution ducts 29 evenly, and then blown into the air outlet section 22 of the air duct 20 via the air distribution duct 29. Therefore, in the present embodiment, the honeycomb type flow equalizing plate 26 (shown in FIG. 2) is disposed in each of the air distribution ducts 29 adjacent to the air outlet section 22.
本发明的气帘产生装置中，导风管 20的出风段 22各区段的总出风截面积 配合气流流动特性配置，使形成气帘 70的气流流量均匀，而均流板 26的设置 更使进入各出风段 22的气流流量平均， 可有效加强气帘 70的效能。此外， 导 风管 20还设置有导引斜面 222及引流管 30的设置， 可导引工作台 50上不慎 流入导风管 20中的液体顺利地排出， 避免液体囤积于导风管 20。  In the air curtain generating device of the present invention, the total air outlet cross-sectional area of each section of the air outlet section 22 of the air duct 20 is arranged in accordance with the airflow flow characteristic, so that the air flow rate forming the air curtain 70 is uniform, and the setting of the flow equaling plate 26 is further entered. The airflow flow rate of each of the air outlet sections 22 is averaged, and the performance of the air curtain 70 can be effectively enhanced. In addition, the air duct 20 is further provided with a guiding inclined surface 222 and a drainage tube 30, so that the liquid inadvertently flowing into the air guiding tube 20 on the table 50 can be smoothly discharged to prevent the liquid from accumulating in the air guiding tube 20.
当然，本发明还可有其它多种实施例，在不背离本发明精神及其实质的情 况下， 熟悉本领域的普通技术人员当可根据本发明做出各种相应的改变和变 形， 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。 工业应用性  The invention may, of course, be embodied in a variety of other embodiments and various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the invention. Corresponding changes and modifications are intended to be included within the scope of the appended claims. Industrial applicability
本发明的气帘导风管的出风孔依气流流动特性配置其孔径大小，使吹出出 风孔的气流流量均匀，从而本发明的气帘的包围效能增强，而导风管还设置有 导弓 I斜面及弓 I流管， 可帮助不慎流入导风管的液体顺利地排出。  The air outlet of the air curtain air duct of the present invention has a pore size according to the flow characteristics of the air flow, so that the air flow rate of the air outlet is uniform, so that the air curtain of the present invention has enhanced enveloping efficiency, and the air duct is also provided with a guide bow I. The inclined surface and the bow I flow tube can help the liquid that inadvertently flows into the air duct to be smoothly discharged.

Claims

权利要求书 Claim
1、 一种气帘产生装置， 其特征在于， 包含有： 1. An air curtain generating device, comprising:
至少一鼓风机， 产生一气流； 及  At least one blower to generate an air flow; and
一导风管， 承接该气流， 其包含有：  An air duct, which receives the air flow, and includes:
一封闭段， 供该气流通过； 及  a closed section for the passage of the air stream; and
一出风段， 承接通过该封闭段的该气流并具有多个供该气流吹出的出风 孔， 该出风孔依该气流流动路径排列， 该出风段包含有：  An air outlet section receives the airflow through the closed section and has a plurality of air outlet holes for the airflow, the air outlet holes are arranged according to the airflow flow path, and the air outlet section comprises:
一转折区， 对应于该封闭段； 及  a turning zone corresponding to the closed section; and
至少一顺流区， 具有一封闭端， 其中该顺流区的单位长度的总出风截面 积由该封闭端朝该转折区逐渐加大， 而该转折区的单位长度的总出风截面积 小于或等于该顺流区的单位长度的总出风截面积的最小值， 借以使个别自该 出风孔吹出的该气流形成一气帘。  At least one downstream region having a closed end, wherein the total outgoing cross-sectional area per unit length of the downstream region is gradually increased from the closed end toward the turning region, and the total outgoing cross-sectional area per unit length of the turning region The minimum value of the total outlet cross-sectional area of the unit length of the downstream region is less than or equal to, so that the airflow individually blown from the outlet hole forms an air curtain.
2、 根据权利要求 1所述的气帘产生装置， 其特征在于， 还包含一闸门， 而该鼓风机具有一供该气流吹出的出风口， 该闸门通过一扭力弹簧枢设于该 出风口与该导风管之间， 且该扭力弹簧具有一常态将该闸门朝关闭该出风口 推的力， 使该闸门常态地关闭该出风口， 而该闸门于该鼓风机吹出该气流时 呈开启状态， 使该气流流入该导风管。  2. The air curtain generating apparatus according to claim 1, further comprising a gate, wherein the air blower has an air outlet for blowing the airflow, the gate being pivoted to the air outlet and the guide through a torsion spring Between the air ducts, and the torsion spring has a normal force pushing the gate toward the air outlet, so that the gate normally closes the air outlet, and the gate is opened when the air blower blows the airflow, so that the Airflow flows into the air duct.
3、根据权利要求 1所述的气帘产生装置，其特征在于， 还包含一蜂巢式 均流板，该蜂巢式均流板设置于该导风管并且位于该封闭段与该出风段之间。  The air curtain generating device according to claim 1, further comprising a honeycomb type flow plate, the honeycomb type flow plate is disposed on the air guiding pipe and located between the closed section and the air outlet section .
4、根据权利要求 1所述的气帘产生装置，其特征在于，还包含一配风板， 该配风板设置于该导风管的该出风段， 以分配由该封闭段吹出的该气流。  The air curtain generating device according to claim 1, further comprising a distribution plate disposed in the air outlet portion of the air duct to distribute the airflow blown by the closed portion .
5、根据权利要求 1所述的气帘产生装置， 其特征在于， 该导风管的出风 段还包含一导引斜面， 该导引斜面导引位于该出风段的一液体流动至该封闭 段， 而该导风管还具有一引流管， 该引流管导引位于该封闭段内的该液体于 该闸门关闭该出风口时排出。  The air curtain generating device according to claim 1, wherein the air outlet section of the air duct further comprises a guiding slope, the guiding slope guiding a liquid flowing in the air outlet section to the closed And the air duct has a drainage tube, and the drainage tube guides the liquid located in the closed section to be discharged when the gate closes the air outlet.
6、根据权利要求 1所述的气帘产生装置，其特征在于， 该出风孔沿该气 流流动路径呈多排的方式排列， 且各相邻排的该出风孔间呈交错列置。  The air curtain generating device according to claim 1, wherein the air outlet holes are arranged in a plurality of rows along the air flow path, and the air outlet holes of the adjacent rows are staggered.
7、根据权利要求 1所述的气帘产生装置，其特征在于， 该出风孔沿该气 流流动路径呈多排的方式排列， 且各相邻排的该出风孔间呈对应配置。 The air curtain generating device according to claim 1, wherein the air outlet holes are arranged in a plurality of rows along the air flow path, and the air outlet holes of the adjacent rows are arranged correspondingly.
8、根据权利要求 1所述的气帘产生装置， 其特征在于， 还包含一供该导 风管设置的工作台， 而该工作台产生污染源并且具有一排气机， 该排气机设 置于该工作台的上方并具有一对应该工作台的排气口， 且该排气机于该排气 口产生一排气流， 将该污染源自该工作台排出， 该气帘朝向该排气机的排气 口吹拂。 The air curtain generating device according to claim 1, further comprising a working table provided for the air guiding duct, wherein the working table generates a pollution source and has an exhausting machine, wherein the exhausting machine is disposed at the Above the workbench and having a pair of exhaust ports corresponding to the workbench, and the exhauster generates an exhaust flow at the exhaust port, the pollution is discharged from the workbench, and the air curtain faces the row of the exhaust machine The mouth is blowing.
9、根据权利要求 8所述的气帘产生装置， 其特征在于， 该气帘由该导风 管的出风段延伸至该排气口内侧边缘， 使该工作台与该排气机之间形成空气 壁面， 以包围该工作台产生的污染源。  The air curtain generating device according to claim 8, wherein the air curtain extends from an air outlet section of the air duct to an inner side edge of the air outlet, so that air is formed between the work platform and the exhaust machine. a wall to surround the source of pollution generated by the workbench.
10、根据权利要求 8所述的气帘产生装置， 其特征在于， 该导风管的出风 段与该工作台包围形成一封闭区域。  The air curtain generating device according to claim 8, wherein the air outlet section of the air duct and the table surround form a closed area.
11、 根据权利要求 1所述的气帘产生装置， 其特征在于， 还包含一配风 箱， 该配风箱设置于该封闭段， 以分配由该股风机吹出的该气流。  11. The air curtain generating apparatus according to claim 1, further comprising a air distribution box, the air distribution box being disposed in the closed section to distribute the air flow blown by the air blower.
PCT/CN2007/002357 2007-08-06 2007-08-06 Air curtain generating device WO2009018679A1 (en)

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CN102563733A (en) * 2011-12-13 2012-07-11 西安建筑科技大学 Airflow closed type kitchen auxiliary smoke exhaust system with U-shaped edge part
CN102589029A (en) * 2012-03-30 2012-07-18 西安建筑科技大学 Double-ring airflow closed auxiliary smoke exhaust system for kitchen
US20130125764A1 (en) * 2011-11-17 2013-05-23 Sogang University Research And Business Foundation Ventilation apparatus and cooking system having the same
TWI452009B (en) * 2012-04-05 2014-09-11 鴻海精密工業股份有限公司 Method of preparing graphene nanoribbons
FR3012579A1 (en) * 2013-10-25 2015-05-01 Faucheur Richard Le SOUFFLANTE HOOD
CN106123078A (en) * 2016-08-22 2016-11-16 天津大学 Combined blowing-sucking type range hood
EP3159611A1 (en) * 2015-10-22 2017-04-26 Angelo Po Grandi Cucine - Societa' per Azioni Shielding apparatus for shielding against contaminated air, fumes or vapours
EP3395453A1 (en) * 2017-04-27 2018-10-31 Omicron Italia S.R.L. Laboratory suction hood
CN109579084A (en) * 2017-09-29 2019-04-05 宁波方太厨具有限公司 A kind of range hood and control method with blower mechanism
IT201800004522A1 (en) * 2018-04-16 2019-10-16 "PERFECTED HOOD WITH RAIL OR UP AND DOWN"

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US20130125764A1 (en) * 2011-11-17 2013-05-23 Sogang University Research And Business Foundation Ventilation apparatus and cooking system having the same
US9874356B2 (en) * 2011-11-17 2018-01-23 Samsung Electronics Co., Ltd. Ventilation apparatus and cooking system having the same
CN102563733A (en) * 2011-12-13 2012-07-11 西安建筑科技大学 Airflow closed type kitchen auxiliary smoke exhaust system with U-shaped edge part
CN102589029A (en) * 2012-03-30 2012-07-18 西安建筑科技大学 Double-ring airflow closed auxiliary smoke exhaust system for kitchen
TWI452009B (en) * 2012-04-05 2014-09-11 鴻海精密工業股份有限公司 Method of preparing graphene nanoribbons
FR3012579A1 (en) * 2013-10-25 2015-05-01 Faucheur Richard Le SOUFFLANTE HOOD
EP3159611A1 (en) * 2015-10-22 2017-04-26 Angelo Po Grandi Cucine - Societa' per Azioni Shielding apparatus for shielding against contaminated air, fumes or vapours
CN106123078A (en) * 2016-08-22 2016-11-16 天津大学 Combined blowing-sucking type range hood
EP3395453A1 (en) * 2017-04-27 2018-10-31 Omicron Italia S.R.L. Laboratory suction hood
CN109579084A (en) * 2017-09-29 2019-04-05 宁波方太厨具有限公司 A kind of range hood and control method with blower mechanism
CN109579084B (en) * 2017-09-29 2024-03-29 宁波方太厨具有限公司 Control method of range hood
IT201800004522A1 (en) * 2018-04-16 2019-10-16 "PERFECTED HOOD WITH RAIL OR UP AND DOWN"
EP3557142A1 (en) * 2018-04-16 2019-10-23 Faber S.p.A. Improved hood of the up-and-down type
CN110388671A (en) * 2018-04-16 2019-10-29 费博股份有限公司 Improved vertical type smoke exhaust ventilator
US11262082B2 (en) 2018-04-16 2022-03-01 Faber S.P.A. Up-and-down hood

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