CN112453001A - Energy-conserving stationary flow fume chamber - Google Patents
Energy-conserving stationary flow fume chamber Download PDFInfo
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- CN112453001A CN112453001A CN202011165134.0A CN202011165134A CN112453001A CN 112453001 A CN112453001 A CN 112453001A CN 202011165134 A CN202011165134 A CN 202011165134A CN 112453001 A CN112453001 A CN 112453001A
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- cabinet body
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- 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
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Abstract
The invention discloses an energy-saving steady flow ventilation cabinet, which has the technical scheme that: including the cabinet body, be provided with operation platform in the cabinet body, still include: the back plate is fixed on one side of the cabinet body and is of a U-shaped groove structure; the glass door is connected to one side of the cabinet body in a sliding mode along the vertical direction; an exhaust duct fixed on the top of the cabinet body in a communicating manner; the flow guide structure is arranged in the cabinet body and used for inhibiting airflow from forming an adhesion boundary surface in the cabinet body; the air suction cross port structure is arranged on the glass door and used for forming an upper air curtain and inhibiting air flow from floating upwards to enter a vortex area in the cabinet body; the double-layer wing air inlet structure is arranged at the edge of the operating platform; this energy-conserving stationary flow fume chamber can restrain the internal portion of cabinet and form thicker air current boundary layer, can reduce the probability that the vortex formed, has the abundant and efficient advantage of taking a breath, is difficult to cause secondary pollutant excessive.
Description
Technical Field
The invention relates to the field of fume hoods, in particular to an energy-saving flow-stabilizing fume hood.
Background
The fume chamber is a common laboratory equipment, and it is used for ventilation, can guarantee experiment operator's operational safety, and its uses is extensive, simple structure.
The following problems are found in the use process of the prior fume hood, such as: a thicker airflow boundary layer is often formed inside the cabinet body, vortex is easily formed, insufficient air exchange and low air exchange efficiency are easily caused, and secondary pollutants are easily overflowed.
Disclosure of Invention
In view of the problems mentioned in the background art, the invention aims to provide an energy-saving steady-flow ventilation cabinet to solve the problems mentioned in the background art.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides an energy-conserving stationary flow fume chamber, includes the cabinet body, be provided with operation platform in the cabinet body, still include:
the back plate is fixed on one side of the cabinet body and is of a U-shaped groove structure;
the glass door is connected to one side of the cabinet body in a sliding mode along the vertical direction;
an exhaust duct fixed on the top of the cabinet body in a communicating manner;
the flow guide structure is arranged in the cabinet body and used for inhibiting airflow from forming an adhesion boundary surface in the cabinet body;
the air suction cross port structure is arranged on the glass door and used for forming an upper air curtain and inhibiting air flow from floating upwards to enter a vortex area in the cabinet body;
the double-layer wing air inlet structure is arranged at the edge of the operating platform and is used for accelerating the airflow boundary layer to quickly form stable flow and inhibiting the boundary layer from separating to form vortex;
and the side air inlet structures are arranged on two sides of the cabinet body.
By adopting the technical scheme, the energy-saving steady-flow ventilation cabinet can inhibit the cabinet body from forming a thicker airflow boundary layer, can reduce the probability of vortex formation, has the advantages of sufficient ventilation and high ventilation efficiency, and is not easy to cause secondary pollutant overflow; the arrangement of the flow guide structure and the U-shaped groove structure back plate on the cabinet body can strengthen the flow velocity close to the side wall and the table top, inhibit the formation of boundary layer vortex, form an upper air curtain and inhibit light-density media from floating upwards to enter a vortex area in the cabinet; the air suction cross opening structure, the double-layer wing air inlet structure and the side air inlet structure can promote the stable airflow flowing formed in the cabinet body, inhibit the separation of the boundary layer along the cambered surface under the window, inhibit the formation of vortex, form a stable laminar flow area and prevent pollutants from overflowing.
Preferably, the flow guide structure comprises a plurality of first connecting pieces, a first flow guide plate, a first air inlet, a plurality of second connecting pieces, a second flow guide plate and a second air inlet, the plurality of first connecting pieces and the plurality of second connecting pieces are respectively installed inside the cabinet body, the first flow guide plate is obliquely fixed on the plurality of first connecting pieces, the inclination angle of the first flow guide plate is 82-86 degrees, the second flow guide plate is fixedly installed on the plurality of second connecting pieces, the second flow guide plate is bent, the first air inlet is located between the first flow guide plate and the cabinet body, and the second air inlet is located between the first flow guide plate and the second flow guide plate.
Through adopting above-mentioned technical scheme, when first guide plate slope certain angle installation, can promote gaseous flow efficiency, and set up first air intake and second air intake and can guarantee that the air current forms the stabilizer layer at wall department and flow, utilize first connecting piece and second connecting piece can make things convenient for the installation of first guide plate and second guide plate fixed.
Preferably, the second guide plate comprises a connecting plate, a first plate portion, a second plate portion and a baffle portion, the first plate portion and the second plate portion are respectively installed and fixed in the connecting plate, an included angle between the first plate portion and the second plate portion is 155 degrees and 162 degrees, and the baffle portion is fixed between the second plate portion and the cabinet body.
Through adopting above-mentioned technical scheme, can make things convenient for the equipment of first board and second board through utilizing the connecting plate, the structural stability of second board can be improved to the fender.
The preferred, the cross mouthful structure of induced drafting includes bridge cut-off section bar spare, induced air strip pipe, first induced air groove and arc bulge structure, bridge cut-off section bar spare is fixed glass door bottom, induced air strip pipe is fixed on the bridge cut-off section bar spare, first induced air groove is seted up induced air strip is intraductal, first induced air inslot has streamlined cambered surface, arc bulge structure is located in the induced air strip pipe first induced air groove tip.
Through adopting above-mentioned technical scheme, when external air current entered through the first induced air groove in the horizontal mouthful of structure that induced drafts, the arc protrusion structure can play the effect of promoting flowing, and induced air barrel and bridge cut-off section bar spare can provide the support for the air inlet of first intake duct department.
Preferably, the double-layer wing air inlet structure comprises a fan-shaped aluminum pipe fitting, a diversion aluminum cover and a second air guide groove, the fan-shaped aluminum pipe fitting is fixed on the end side of the operating platform, the diversion aluminum cover is fixed on the outer portion of the fan-shaped aluminum pipe fitting, the second air guide groove is located between the fan-shaped aluminum pipe fitting and the diversion aluminum cover, and a streamline arc surface is arranged in the second air guide groove.
Through adopting above-mentioned technical scheme, the second induced air groove between fan-shaped aluminium pipe fitting and the water conservancy diversion aluminium shroud can accelerate the air current and enter into cabinet body inside, can improve nearly wall department fluid velocity of flow, restraines fluid boundary layer thickness, restraines the boundary layer and breaks away from the formation vortex.
Preferably, the side air inlet structure comprises a first aluminum plate, a second aluminum plate and a side air inducing groove, the first aluminum plate and the second aluminum plate are fixed on the side of the cabinet body respectively, the side air inducing groove is located between the first aluminum plate and the second aluminum plate, and an inlet of the side air inducing groove is arc-shaped.
Through adopting above-mentioned technical scheme, the side induced air groove between first aluminum plate and the second aluminum plate can accelerate the air current and go up the cluster, can guarantee to admit air more fully.
Preferably, the exhaust duct includes first pipeline and second pipeline, first pipeline passes through the flange to be fixed cabinet body top, first pipeline has the tapering that expands outward, second pipeline joint is fixed first pipeline top, the second pipeline has the throat.
Through adopting above-mentioned technical scheme, through the utilization have the tapering first pipeline of flaring outward and have the second pipeline of throat can accelerate air current exhaust speed, improve the efficiency of taking a breath.
Preferably, the bottom of the cabinet body is provided with a plurality of cabinets and drawers.
Through adopting above-mentioned technical scheme, the setting of drawer and cupboard can increase storing space and ability.
In summary, the invention mainly has the following beneficial effects:
the energy-saving steady flow ventilation cabinet can inhibit the cabinet body from forming a thicker airflow boundary layer, can reduce the probability of vortex formation, has the advantages of sufficient air exchange and high air exchange efficiency, and is not easy to cause secondary pollutant overflow; the arrangement of the flow guide structure and the U-shaped groove structure back plate on the cabinet body can strengthen the flow velocity close to the side wall and the table top, inhibit the formation of boundary layer vortex, form an upper air curtain and inhibit light-density media from floating upwards to enter a vortex area in the cabinet; the air suction cross opening structure, the double-layer wing air inlet structure and the side air inlet structure can promote the stable airflow flowing formed in the cabinet body, inhibit the separation of the boundary layer along the cambered surface under the window, inhibit the formation of vortex, form a stable laminar flow area and prevent pollutants from overflowing.
Drawings
FIG. 1 is a structural cross-sectional view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is a schematic structural view of the present invention;
fig. 5 is a partially enlarged view of C in fig. 4.
Reference numerals: 1. a cabinet body; 11. an operating platform; 12. a back plate; 13. a glass door; 14. an exhaust duct; 2. a flow guide structure; 3. a cross air draft structure; 4. the double-layer wing air inlet structure; 5. a side air inlet structure; 21. a first connecting member; 22. a first baffle; 23. a first air inlet; 24. a second connecting member; 25. a second baffle; 26. a second air inlet; 221. a connecting plate; 222. a first plate portion; 223. a second plate portion; 224. a baffle portion; 31. a broken bridge profile; 32. an air-inducing strip pipe; 33. a first wind guide groove; 34. an arc-shaped protruding structure; 41. a fan-shaped aluminum pipe fitting; 42. a flow-guiding aluminum cover; 43. a second wind guide groove; 51. a first aluminum plate; 52. a second aluminum plate; 53. a side wind guide groove; 141. a first conduit; 142. a second conduit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-5, an energy-saving steady flow ventilation cabinet mainly comprises the following parts:
the cabinet body 1 is used as a main body support, and an operation platform 11 is arranged in the cabinet body 1;
a back plate 12 fixed on one side of the cabinet body 1, wherein the back plate 12 is in a U-shaped groove structure;
a glass door 13 connected to one side of the cabinet 1 in a sliding manner along the vertical direction;
an exhaust duct 14 fixed on the top of the cabinet body 1;
the flow guide structure 2 is arranged in the cabinet body 1 and used for inhibiting airflow from forming an adhesion boundary surface in the cabinet body 1;
the air suction cross port structure 3 is arranged on the glass door 13 and is used for forming an upper air curtain and inhibiting air flow from floating upwards to enter a vortex area in the cabinet body 1;
the double-layer wing air inlet structure 4 is arranged at the edge of the operating platform 11 and is used for accelerating the airflow boundary layer to quickly form stable flow and inhibiting the boundary layer from separating to form vortex;
and side air inlet structures 5 arranged at two sides of the cabinet body 1.
Referring to fig. 1-5, the energy-saving steady flow ventilation cabinet can inhibit the cabinet body 1 from forming a thicker airflow boundary layer, can reduce the probability of vortex formation, has the advantages of sufficient air exchange and high air exchange efficiency, and is not easy to cause secondary pollutant overflow; the arrangement of the flow guide structure 2 and the U-shaped groove structure back plate 12 on the cabinet body 1 can strengthen the flow velocity close to the side wall and the table top, inhibit the formation of boundary layer vortex, form an upper air curtain and inhibit light-density media from floating upwards to enter a vortex area in the cabinet; the induced draft cross port structure 3, the double-layer wing air inlet structure 4 and the side air inlet structure 5 can promote the stable airflow flowing formed inside the cabinet body 1, inhibit the separation of the boundary layer along the cambered surface under the window, inhibit the formation of vortex, form a stable laminar flow area and prevent the overflow of pollutants.
Referring to fig. 1 and 3, the flow guiding structure 2 includes a plurality of first connectors 21, a first flow guiding plate 22, a first air inlet 23, a plurality of second connectors 24, a second flow guiding plate 25 and a second air inlet 26, the plurality of first connectors 21 and the plurality of second connectors 24 are respectively installed inside the cabinet 1, the first flow guiding plate 22 is obliquely fixed on the plurality of first connectors 21, an inclination angle of the first flow guiding plate 22 is 82-86 °, the second flow guiding plate 25 is installed and fixed on the plurality of second connectors 24, the second flow guiding plate 25 is bent, the first air inlet 23 is located between the first flow guiding plate 22 and the cabinet 1, the second air inlet 26 is located between the first flow guiding plate 22 and the second flow guiding plate 25, when the first flow guiding plate 22 is installed at a certain angle, the flow efficiency of air can be improved, and the first air inlet 23 and the second air inlet 26 are configured to ensure that the air flow forms a stable layer at the wall surface, the first connecting piece 21 and the second connecting piece 24 can facilitate the installation and fixation of the first guide plate 22 and the second guide plate 25.
Referring to fig. 1 and 3, the second diversion plate 25 includes a connection plate 221, a first plate portion 222, a second plate portion 223 and a baffle portion 224, the first plate portion 222 and the second plate portion 223 are respectively installed and fixed in the connection plate 221, an included angle between the first plate portion 222 and the second plate portion 223 is 155 and 162 °, the baffle portion 224 is fixed between the second plate portion 223 and the cabinet 1, and the first plate portion 222 and the second plate portion 223 can be conveniently assembled by using the connection plate 221, and the baffle can improve the structural stability of the second plate portion 223.
Referring to fig. 1 and 2, the induced draft cross-port structure 3 includes a bridge-cut-off section 31, an induced draft strip pipe 32, a first induced draft groove 33 and an arc-shaped protruding structure 34, the bridge-cut-off section 31 is fixed at the bottom of the glass door 13, the induced draft strip pipe 32 is fixed on the bridge-cut-off section 31, the first induced draft groove 33 is opened in the induced draft strip pipe 32, a streamline arc surface is arranged in the first induced draft groove 33, the arc-shaped protruding structure 34 is located at the end of the first induced draft groove 33 in the induced draft strip pipe 32, when external air flow enters through the first induced draft groove 33 in the induced draft cross-port structure 3, the arc-shaped protruding structure 34 can play a role in promoting flow, and the induced draft strip pipe 32 and the bridge-cut-off section 31 can provide support for air intake at the first induced draft groove.
Referring to fig. 1 and 2, wherein the double-layer wing air intake structure 4 includes a fan-shaped aluminum pipe 41, an aluminum diversion cover 42 and a second air guide groove 43, the fan-shaped aluminum pipe 41 is fixed on the end side of the operating platform 11, the aluminum diversion cover 42 is fixed on the outside of the fan-shaped aluminum pipe 41, the second air guide groove 43 is located between the fan-shaped aluminum pipe 41 and the aluminum diversion cover 42, a streamline arc surface is arranged in the second air guide groove 43, the second air guide groove 43 between the fan-shaped aluminum pipe 41 and the aluminum diversion cover 42 can accelerate the airflow to enter the cabinet 1, the fluid flow velocity near the wall surface can be improved, the thickness of the fluid boundary layer is inhibited, and the boundary layer is inhibited from being separated to form a vortex.
Referring to fig. 4 and 5, the side air intake structure 5 includes a first aluminum plate 51, a second aluminum plate 52 and a side air inducing groove 53, the first aluminum plate 51 and the second aluminum plate 52 are respectively fixed on the side of the cabinet body 1, the side air inducing groove 53 is located between the first aluminum plate 51 and the second aluminum plate 52, the inlet of the side air inducing groove 53 is arc-shaped, the side air inducing groove 53 between the first aluminum plate 51 and the second aluminum plate 52 can accelerate the upward flowing of the air flow, and the air intake can be ensured to be more sufficient.
Referring to fig. 1 and 4, the exhaust duct 14 includes a first duct 141 and a second duct 142, the first duct 141 is fixed at the top of the cabinet 1 by a flange, the first duct 141 has an outward-expanding taper, the second duct 142 is fixed at the top end of the first duct 141 by clamping, the second duct 142 has a reduced mouth, and the exhaust speed of the air flow can be increased by using the first duct 141 with the outward-expanding taper and the second duct 142 with the reduced mouth, so as to improve the ventilation efficiency; meanwhile, the bottom of the cabinet body 1 is provided with a plurality of cabinets and drawers, and the storage space and capacity can be increased due to the arrangement of the drawers and the cabinets.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an energy-conserving stationary flow fume chamber, includes the cabinet body (1), be provided with operation platform (11), its characterized in that in the cabinet body (1): further comprising:
the back plate (12) is fixed on one side of the cabinet body (1), and the back plate (12) is of a U-shaped groove structure;
the glass door (13) is connected to one side of the cabinet body (1) in a sliding manner along the vertical direction;
an exhaust duct (14) fixed on the top of the cabinet body (1) in a communicating manner;
the flow guide structure (2) is arranged in the cabinet body (1) and used for inhibiting airflow from forming an adhesion boundary surface in the cabinet body (1);
the air suction cross port structure (3) is arranged on the glass door (13) and is used for forming an upper air curtain and inhibiting air flow from floating upwards to enter a vortex area in the cabinet body (1);
the double-layer wing air inlet structure (4) is arranged at the edge of the operating platform (11) and can accelerate the airflow boundary layer to quickly form stable flow and inhibit the boundary layer from separating to form vortex;
and side air inlet structures (5) arranged at two sides of the cabinet body (1).
2. An energy-saving steady flow ventilation cabinet according to claim 1, characterized in that: the flow guide structure (2) comprises a plurality of first connecting pieces (21), a first flow guide plate (22), a first air inlet (23), a plurality of second connecting pieces (24), a second flow guide plate (25) and a second air inlet (26), the plurality of first connecting pieces (21) and the plurality of second connecting pieces (24) are respectively arranged in the cabinet body (1), the first guide plates (22) are obliquely fixed on a plurality of first connecting pieces (21), the inclination angle of the first guide plate (22) is 82-86 degrees, the second guide plates (25) are fixedly arranged on a plurality of second connecting pieces (24), the second guide plate (25) is bent, the first air inlet (23) is positioned between the first guide plate (22) and the cabinet body (1), the second air inlet (26) is positioned between the first guide plate (22) and the second guide plate (25).
3. An energy-saving steady flow ventilation cabinet according to claim 2, characterized in that: the second guide plate (25) comprises a connecting plate (221), a first plate part (222), a second plate part (223) and a baffle part (224), the first plate part (222) and the second plate part (223) are respectively installed and fixed in the connecting plate (221), an included angle between the first plate part (222) and the second plate part (223) is 155 and 162 degrees, and the baffle part (224) is fixed between the second plate part (223) and the cabinet body (1).
4. An energy-saving steady flow ventilation cabinet according to claim 1, characterized in that: induced draft cross mouthful structure (3) are including bridge cut-off section bar spare (31), induced draft strip pipe (32), first induced draft groove (33) and arc bulge structure (34), bridge cut-off section bar spare (31) are fixed glass door (13) bottom, induced draft strip pipe (32) are fixed on bridge cut-off section bar spare (31), first induced draft groove (33) are seted up in induced draft strip pipe (32), streamlined cambered surface has in first induced draft groove (33), arc bulge structure (34) are located in induced draft strip pipe (32) first induced draft groove (33) tip.
5. An energy-saving steady flow ventilation cabinet according to claim 1, characterized in that: double-deck wing air inlet structure (4) are including fan-shaped aluminum pipe spare (41), water conservancy diversion aluminium shroud (42) and second induced air groove (43), fan-shaped aluminum pipe spare (41) are fixed the distolateral side of operation platform (11), water conservancy diversion aluminium shroud (42) are fixed the outside of fan-shaped aluminum pipe spare (41), second induced air groove (43) are located fan-shaped aluminum pipe spare (41) with between water conservancy diversion aluminium shroud (42), streamlined cambered surface has in second induced air groove (43).
6. An energy-saving steady flow ventilation cabinet according to claim 1, characterized in that: the side air inlet structure (5) comprises a first aluminum plate (51), a second aluminum plate (52) and a side air guide groove (53), wherein the first aluminum plate (51) and the second aluminum plate (52) are fixed on the side of the cabinet body (1) respectively, the side air guide groove (53) is located between the first aluminum plate (51) and the second aluminum plate (52), and the inlet of the side air guide groove (53) is arc-shaped.
7. An energy-saving steady flow ventilation cabinet according to claim 1, characterized in that: exhaust pipe (14) include first pipeline (141) and second pipeline (142), first pipeline (141) are fixed through the flange the cabinet body (1) top, first pipeline (141) have the tapering that expands outward, second pipeline (142) joint is fixed first pipeline (141) top, second pipeline (142) have the throat.
8. An energy-saving steady flow ventilation cabinet according to claim 2, characterized in that: the bottom of the cabinet body (1) is provided with a plurality of cabinets and drawers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011165134.0A CN112453001A (en) | 2020-10-27 | 2020-10-27 | Energy-conserving stationary flow fume chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011165134.0A CN112453001A (en) | 2020-10-27 | 2020-10-27 | Energy-conserving stationary flow fume chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112453001A true CN112453001A (en) | 2021-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011165134.0A Pending CN112453001A (en) | 2020-10-27 | 2020-10-27 | Energy-conserving stationary flow fume chamber |
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| Country | Link |
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| CN (1) | CN112453001A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115889384A (en) * | 2023-02-20 | 2023-04-04 | 倚世节能科技（上海）有限公司 | Fume hood, ventilating method and computer readable storage medium |
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| CN207463783U (en) * | 2017-10-11 | 2018-06-08 | 倚世节能科技（上海）有限公司 | Vent cabinet |
| CN111185455A (en) * | 2020-01-14 | 2020-05-22 | 江苏科仕达实验室环保科技有限公司 | Energy-saving type air supplementing ventilation cabinet |
| CN111229771A (en) * | 2020-03-09 | 2020-06-05 | 山东新华医疗器械股份有限公司 | Exhaust cabinet |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180065161A1 (en) * | 2016-03-17 | 2018-03-08 | E3 Green Technology Co., Ltd. | A steady flow structure and a ventilation apparatus having said steady flow structure |
| CN108114963A (en) * | 2016-11-26 | 2018-06-05 | 北京成威博瑞实验室设备有限公司 | Mend the wind wing and with the vent cabinet for mending the wind wing |
| CN108114961A (en) * | 2016-11-26 | 2018-06-05 | 北京成威博瑞实验室设备有限公司 | Flow guide system and the vent cabinet with flow guide system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115889384A (en) * | 2023-02-20 | 2023-04-04 | 倚世节能科技（上海）有限公司 | Fume hood, ventilating method and computer readable storage medium |
| CN115889384B (en) * | 2023-02-20 | 2023-09-29 | 倚世节能科技（上海）有限公司 | Fume hood, ventilation method and computer readable storage medium |
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Application publication date: 20210309 |