CN208513315U - A kind of ventilation hoods for laboratories system - Google Patents

Abstract

The utility model discloses a kind of ventilation hoods for laboratories systems, including laboratory, No.1 air-suction duct and No. two air-suction ducts, the upper inner wall in the laboratory is equipped with air-suction trunk, the left end connection of air-suction trunk is equipped with No.1 air-suction duct, this device has haved the function that make entirely to test indoor air circulation circulation, fresh air is discharged into from the floor in laboratory after filtering, air second-rate after indoor gas circulation rises entirely is tested to be discharged by the air-suction trunk in the upper inner wall of laboratory, improve the indoor air quality of experiment, fresh air in this device at air-out groove at the air draught head above laboratory by sucking, air draught head is located at eminence, it ensure that the air quality of sucking is preferable, first exhaust fan is arranged below laboratory, air second-rate in laboratory can be discharged into lower, air inlet is avoided to go out The phenomenon that fresh air and foul atmosphere generate mixing when gas, ensure that the quality of the logical air of laboratory inner recirculation flow.

Description

A kind of ventilation hoods for laboratories system

Technical field

The utility model relates to ventilation hoods for laboratories technical field, specially a kind of ventilation hoods for laboratories system.

Background technique

Number of patent application are as follows: 201520365826.8, a kind of proprietary term are as follows: institute in the document of ventilation hoods for laboratories system The height for stating induced duct is the 1/2-1/3 of blast main height, and the height of induced duct is successively successively decreased, and gas flow resistance can be made 20%-30% is reduced, air-exhausting duct gas flow resistance is reduced, improves exhaust effect, so that Laboratory air pollution is reduced, but it There are still following drawbacks during actual use:

1. the device only can individually air inlet or exhaust, be not achieved by while air inlet by the air of script in laboratory Discharge, outlet while ozone cannot be filtered again after be then exhausted from laboratory, it is restricted relatively by force；

2. the device is when in use, air inlet may will just discharge laboratory the sucking of pollution air, when outlet, may The fresh air discharge in laboratory will be had just enter into, the effect of air cleaning is poor.

Utility model content

The purpose of this utility model is to provide a kind of ventilation hoods for laboratories systems, to solve to mention in above-mentioned background technique Out the problem of.

To achieve the above object, the utility model provides the following technical solutions: a kind of ventilation hoods for laboratories system, including The upper inner wall of laboratory, No.1 air-suction duct and No. two air-suction ducts, the laboratory is equipped with air-suction trunk, a left side for air-suction trunk End connection is equipped with No.1 air-suction duct, and air-out groove is equipped at the bottom surface in the laboratory, is placed with air filter in air-out groove, Air filter right end connection be equipped with No. two air-suction ducts, No. two air-suction ducts by laboratory bottom interior wall and reality It tests the right side inner wall of room and is arranged through the upper outer wall in laboratory, No. two air-suction ducts run through the position of laboratory upper outer wall It is connected with the second exhaust fan, is equipped with air draught head above the second exhaust fan, the air draught head includes air draught column, wind inlet and rain-proof Plate, the outer peripheral surface of the air draught column are equipped with wind inlet, and air draught column upper surface is fixed with flashing board, on the air filter Side is equipped with Rose Box, and the Rose Box is in rectangular box shape structure, is equipped with filter cotton in Rose Box, filter cotton upper surface was equipped with Filter box lid, filtering case lid are fastened on the upper surface of Rose Box, and the Rose Box side of covering is additionally provided with flase floor, and the flase floor passes through spiral shell Nail be fixed in the inner bottom surface in laboratory, the upper surface of the flase floor, the upper surface of screw and laboratory inner bottom surface Positioned at same level.

Preferably, the No.1 air-suction duct is arranged in the inner wall on the left of laboratory, and the lower end of No.1 air-suction duct Left side outer wall through laboratory is arranged, and No.1 air-suction duct is connected with the first exhaust fan at outer wall on the left of laboratory.

Preferably, the air draught column is in inverted open circles cone structure, the lower end of air draught column by the second exhaust fan and No. two air-suction ducts are connected.

Preferably, the rounded small pore-like of the wind inlet, wind inlet be equipped with it is multiple, multiple rounded array-likes of wind inlet are enclosed It is arranged at a circle of air draught column.

Preferably, the flashing board is in solid circular plate structure, and flashing board can seal the upper end of air draught column.

Compared with prior art, the utility model has the beneficial effects that the utility model structure setting is reasonable, it is functional By force, it has the advantage that

1. this device has haved the function that make entirely to test indoor air circulation circulation, fresh air after filtering from It is discharged at the floor in laboratory, entirely tests air second-rate after indoor gas circulation rises by the top of laboratory Air-suction trunk discharge on wall, improves the indoor air quality of experiment；

2. the fresh air in this device at air-out groove at the air draught head above laboratory by sucking, air draught head is located at height Place, ensure that the air quality of sucking is preferable, and the first exhaust fan is arranged below laboratory, can will be second-rate in laboratory The phenomenon that air is discharged into lower, and fresh air and foul atmosphere generate mixing when avoiding air inlet outlet, ensure that in laboratory The quality of the air of circulation；

3. being equipped with flashing board above air draught head and air draught head being by the wind inlet sucking air on air draught column, air draught column is in Inverted conical structure, good avoid avoid when sucking air there are rainwater entrance；

4. being additionally provided with Rose Box above air filter, filter cotton is equipped in Rose Box, filter cotton has further purification The effect of air, double purified, it is ensured that the air quality of laboratory internal is suitble to promote.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model air-out groove schematic diagram of internal structure；

Fig. 3 is the utility model air draught header structure schematic diagram.

In figure: 1 laboratory, 2 air-suction trunks, 3 air-out grooves, 4 No.1 air-suction ducts, 5 No. two air-suction ducts, 6 air draught heads, 61 are inhaled Wind column, 62 wind inlets, 63 flashing boards, 7 air filters, 71 filter cottons, 72 flase floors, 73 filtering case lids, 74 Rose Boxes, 8 the One exhaust fan, 9 second exhaust fans.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of ventilation hoods for laboratories system, including reality Room 1, No.1 air-suction duct 4 and No. two air-suction ducts 5 are tested, the upper inner wall in laboratory 1 is equipped with air-suction trunk 2, a left side for air-suction trunk 2 End connection is equipped with No.1 air-suction duct 4, and No.1 air-suction duct 4 is arranged in the inner wall in 1 left side of laboratory, and No.1 air-suction duct Left side outer wall of 4 lower end through laboratory 1 is arranged, and No.1 air-suction duct 4 is connected with first at 1 left side outer wall of laboratory Exhaust fan 8 is equipped with air-out groove 3 at the bottom surface in laboratory 1, is placed with air filter 7, the right side of air filter 7 in air-out groove 3 End connection is equipped with No. two air-suction ducts 5, and No. two air-suction ducts 5 are by the bottom interior wall in laboratory 1 and the right side inner wall in laboratory 1 And be arranged through the upper outer wall in laboratory 1, No. two air-suction ducts 5 are connected with second through the position of 1 upper outer wall of laboratory Exhaust fan 9 is equipped with air draught head 6 above second exhaust fan 9, and air draught head 6 includes air draught column 61, wind inlet 62 and flashing board 63, inhales Wind column 61 is in inverted open circles cone structure, and the lower end of air draught column 61 is connected by the second exhaust fan 9 with No. two air-suction ducts 5 Logical, the outer peripheral surface of air draught column 61 is equipped with wind inlet 62, the rounded small pore-like of wind inlet 62, wind inlet 62 be equipped with it is multiple, it is multiple The rounded array-like of wind inlet 62 is arranged at a circle of air draught column 61, and 61 upper surface of air draught column is fixed with flashing board 63, Flashing board 63 is in solid circular plate structure, and the upper end of air draught column 61 can be sealed, be set above air filter 7 by flashing board 63 There is Rose Box 74, Rose Box 74 is in rectangular box shape structure, is equipped with filter cotton 71 in Rose Box 74,71 upper surface of filter cotton is equipped with Case lid 73 is filtered, filtering case lid 73 is fastened on the upper surface of Rose Box 74, filters and is additionally provided with flase floor 72, grid above case lid 73 Plate 72 is fixed by screws in the inner bottom surface in laboratory 1, the upper surface of flase floor 72, the upper surface of screw and laboratory 1 Inner bottom surface be located at same level.

Working principle: firstly, by the first exhaust fan 8, by the foul atmosphere inside laboratory 1 above laboratory 1 Discharge, the second exhaust fan 9 are preferably empty by 1 upper air quality of laboratory after being drawn into No.1 air-suction duct 4 in air-suction trunk 2 Gas sucks in air-out groove 3 from No. two air-suction ducts 5, after the double purified of air filter 7 and filter cotton 71 in air-out groove 3 Laboratory 1 is discharged into from 1 floor of laboratory from flase floor 72, flase floor 72 has the function of protecting filter device in air-out groove 3, It avoids artificially trampling, the upper surface of screw, the upper surface of flase floor 72 and 1 bottom surface of laboratory are located at same level, are not easy to stumble Foot, and flase floor 72 is fixed by screws in 1 inner bottom surface of laboratory, easy to disassemble and replacement air filter, air draught column 61 be in inverted cone-shaped structure, and the more inclination that 61 gradient of air draught column can be arranged, when can avoid raining, rainwater is from air draught Hole 62 enters No. two air-suction ducts 5, and flashing board 63 avoids the phenomenon that rainwater enters from 61 upper end of air draught column, and flashing board 63 Edge can also protrude from the setting of air draught column 61, and rainwater will not be entered by further ensuring in air draught column 61, be suitble to promote.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of ventilation hoods for laboratories system, including laboratory (1), No.1 air-suction duct (4) and No. two air-suction ducts (5), It is characterized by: the upper inner wall of the laboratory (1) is equipped with air-suction trunk (2), the left end connection of air-suction trunk (2) is equipped with No.1 Air-suction duct (4), is equipped with air-out groove (3) at the bottom surface of the laboratory (1), and air-out groove is placed with air filter in (3) (7), the right end connection of air filter (7) is equipped with No. two air-suction ducts (5), and No. two air-suction ducts (5) are by laboratory (1) the right side inner wall of bottom interior wall and laboratory (1) is simultaneously arranged, No. two air-suction ducts through the upper outer wall of laboratory (1) (5) it is connected with the second exhaust fan (9) through the position of laboratory (1) upper outer wall, air draught head is equipped with above the second exhaust fan (9) (6), the air draught head (6) includes air draught column (61), wind inlet (62) and flashing board (63), the outer ring table of the air draught column (61) Face is equipped with wind inlet (62), and air draught column (61) upper surface is fixed with flashing board (63), is equipped with above the air filter (7) Rose Box (74), the Rose Box (74) are in rectangular box shape structure, are equipped with filter cotton (71) in Rose Box (74), filter cotton (71) upper surface is equipped with filtering case lid (73), and filtering case lid (73) is fastened on the upper surface of Rose Box (74), filters case lid (73) Top is additionally provided with flase floor (72), and the flase floor (72) is fixed by screws in the inner bottom surface of laboratory (1), the lattice Upper surface, the upper surface of screw and the inner bottom surface of laboratory (1) of screen (72) are located at same level.

2. a kind of ventilation hoods for laboratories system according to claim 1, it is characterised in that: the No.1 air-suction duct (4) it is arranged in the inner wall on the left of laboratory (1), and the left side outer wall of laboratory (1) is run through in the lower end of No.1 air-suction duct (4) Setting, No.1 air-suction duct (4) are connected with the first exhaust fan (8) at outer wall on the left of laboratory (1).

3. a kind of ventilation hoods for laboratories system according to claim 1, it is characterised in that: the air draught column (61) is in The lower end of the open circles cone structure set, air draught column (61) is connected by the second exhaust fan (9) with No. two air-suction ducts (5).

4. a kind of ventilation hoods for laboratories system according to claim 1, it is characterised in that: the wind inlet (62) is in circle Shape small pore-like, wind inlet (62) be equipped with it is multiple, the rounded array-like of multiple wind inlets (62) around air draught column (61) a circle at Setting.

5. a kind of ventilation hoods for laboratories system according to claim 1, it is characterised in that: the flashing board (63) is in real The circular plate structure of the heart, flashing board (63) can seal the upper end of air draught column (61).