CN201059709Y

CN201059709Y - Air exhausting system

Info

Publication number: CN201059709Y
Application number: CNU2006201260882U
Authority: CN
Inventors: 杨瑞宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-17
Filing date: 2006-10-17
Publication date: 2008-05-14
Anticipated expiration: 2016-10-17

Abstract

The utility model discloses a gas exhaust system, which decreases the air deflection on an exhausting line by the method of making the air deflection in a blower fan to coincide with the air deflection on the exhausting line (namely, arranged on the side wall of a vertical exhausting passage for the indoor gas exhaust system); a connecting pipe is connected from the side surface of a gas-collecting hood in the gas exhaust system to ensure that the gas current deflects at a lower speed; a shock mitigation system is used for decreasing the vibration to avoid the trouble of the cleaning of soot. Four deflections of the gas current in the typical indoor gas exhaust system during the flowing are decreased to a deflection at the inner part of the blower fan and a low speed gas current deflection (only a deflection at the inner part of the blower fan without the gas-collecting hood); and an oil exhausting channel is arranged to exhaust oil. The efficiency of the blower fan is greatly improved, the noise is reduced, and the cleaning work is just required to wipe the gas-collecting hood. The gas-collecting space of the gas-collecting hood is greatly increased, and the noise is reduced because the blower fan is shifted out of the gas-collecting hood, and the change of the gas-collecting hood according to the requirement of the decoration is possible. Meanwhile the blower fan can be arranged at the lower part of a toilet because the blower fan is arranged on the side wall of the vertical exhausting passage to avoid that the typical gas exhaust fan is arranged at the upper part, and the gas is inbreathed by human body when being lifted to the middle part.

Description

Gas extraction system

Technical field

The utility model relates to the indoor gas exhaust system, uses this system can reduce noise, energy efficient, raising exhaust effect, and exempts the trouble of cleaning.In the toilet, use and directly to allow air discharge, avoid foul atmosphere to be promoted to the breathing height and sucked by human body from the bottom.

Background technology

At present, known indoor exhaust mode, kitchen are to adopt blower fan is loaded on lampblack absorber in the gas skirt, and gas skirt links to each other with vertical airduct by flexible pipe, blower fan is pressed into flue gas vertical exhaust duct (be typically provided with secondary exhaust duct, will through secondary exhaust duct) flue gas is discharged by connecting flexible pipe during exhaust.The toilet exhaust mainly is to utilize the exhaust fan be loaded on the toilet furred ceiling that air is pressed into the flexible pipe that links to each other with vertical exhaust duct, and is outdoor by vertical exhaust (be typically provided with secondary exhaust duct, will through secondary exhaust duct) road discharge again.

Use is loaded on lampblack absorber exhaust in the gas skirt with blower fan, the circuit of exhaust is that air-flow earlier enters gas skirt turnover level from bottom to top and enters blower fan [being example (using other form blower fan and mounting means with this type of formula) with the common mounting means of centrifugal blower in gas skirt that use], turnover upwards enters tube connector again in blower fan, enter behind the tube connector from upwards again turnover become level, entering behind the vertical exhaust duct again, turnover upwards becomes upwards from level.It is curved and to be positioned at the turnover of exhaust duct curved because of the little feasible turnover curved arc degree in space is very little to be positioned at the turnover at flexible pipe place, and what particularly be positioned at exhaust duct does not curvedly have a radian substantially, so causes very big exhaust resistance because of transferring rapidly of air-flow, reaches air turbulence.Exhaust air rate was connected the back exhaust air rate before lampblack absorber was not connected with exhaust duct with exhaust duct will very big minimizing, and noise also will strengthen simultaneously.

Because of can being adsorbed in the imbalance that causes when running on the exhaust blower impeller, lampblack absorber institute mist extractor produces vibration, usually the scheme that solves is, add overanxious device at air inlet and stop oil smoke, overanxious device stops up to a certain degree overanxious device is cleaned or changes, behind the certain hour lampblack absorber cleaned and reduce the vibrations that the impeller imbalance causes, so the problem that exists is in use along with the continuous obstruction exhaust air rate of overanxious device also will be along with minimizing, and is also pretty troublesome to the cleaning of overanxious device and lampblack absorber simultaneously.

Because of blower fan is loaded in the gas skirt, make the cushion space that holds flue gas in the gas skirt reduce in a large number, almost there is not the cushion space that holds flue gas for European-style range hood, increase easy loss as flue gas moment.Gas skirt mostly is iron sheet and stainless steel sheet| making in the gas skirt because of blower fan is loaded on simultaneously, and the vibration of blower fan will cause the vibration of gas skirt, thereby produce noise.Noise source is apart from operator's close together in the gas skirt because of blower fan is loaded on, and the noise that the operator is listened to increases.

Its exhaust lay out of exhaust fan exhaust that use is loaded on the toilet furred ceiling is, in the toilet air from the bottom, toilet and around enter top exhaust fan turnover and enter flexible pipe, become vertically upward from level after entering vertical exhaust duct.Because of exhaust fan is loaded on top, toilet toilet foul smell and moisture results from the bottom, toilet in a large number, in exhaust process, will make foul smell and moisture through whole height, thereby the people that the foul smell that occupy the bottom and moisture are occupy wherein breathe.Furred ceiling mostly is thin-walled material again on the toilet furred ceiling because of exhaust fan is loaded on, and produces noise thereby the vibration of blower fan will cause the vibration of furred ceiling.The turnover that is positioned at exhaust duct is curved, will not increase exhaust resistance and noise greatly because of almost there being crooked radian.

For preventing collaborating in the public exhaust duct, the measure of taking in the exhaust duct is for being separated out a secondary exhaust duct in exhaust duct, thereby near secondary exhaust duct gas outlet, make in the exhaust duct flow velocity accelerate to produce negative pressure, stop in the flue and collaborate at secondary exhaust road junction by the measure expectation that reduces the cross section.The problem that the method exists is that the gas that has only in exhaust duct to be flowed reaches certain cross section degree of filling and reaches certain flow velocity and just can produce secondary pressure at secondary exhaust road junction, be that the gas that can't prevent slow diffusion, motion comes into the interior.In view of this, be to add by-pass valve control midway in a kind of method that adopts simultaneously at the exhaust lay out that is vented to vertical exhaust duct, driving has electronic and two kinds of forms of air draft air stream drives for valve, electronic common employing butterfly valve is added in the vertical gas pass side-walls, and the air draft air stream drives is added in lampblack absorber and exhaust fan exit usually.These two kinds of methods are valve are added in the middle of the exhaust lay out.To valve being added in the middle of the exhaust lay out (be pipeline in the middle of) difficult tightness of closing of accomplishing, for the gas that contains oil smoke because the tightness of the effect valve closing of oil smoke will be worse and worse.Be present in exhaust lay out valve midway and increased windage.

Summary of the invention

Add the gas extraction system that the exhaust duct exhaust forms and do not have global design in order to overcome existing lampblack absorber, exhaust fan.Performance after lampblack absorber, exhaust fan are tested its performance separately and be connected is compared significantly and is reduced, and original method noise is big, exhaust effect is not good, the anti-trouble of collaborating poor effect and need often clean.The utility model provides a kind of gas extraction system to collect until gas from indoor gas and discharges outdoor unified design, the trouble that effectively reduce noise, improves exhaust effect, cuts down the consumption of energy and exempt cleaning.

Indoor exhaust of the present utility model system, the blower fan that air stream outlet makes progress is arranged in the vertical exhaust duct, and its airflow inlet level is stretched out vertical exhaust duct sidewall.

As preferably, this gas extraction system comprises exhaust duct and is loaded on the blower fan of exhaust lay out air-flow turning point (vertical exhaust duct side-walls) (the gas flow circuitry turnover overlaps substantially with the turnover of exhaust lay out air-flow in the blower fan), have wind deflector at blower fan, blower fan adopts shock mitigation system to be installed on the support, support is installed on the adjustable plate, adjustable plate is installed on the exhaust duct, air flow outlet is provided with electronic exhaust valve in blower fan, in airduct, be provided with oil expulsion channel, the perforate of gas skirt side utilizes tube connector to be connected with vertical exhaust duct, and flue gas spreads over the exhaust door-plate or the wind deflector place utilizes easy fuse (sheet) to hold exhaust valve or wind deflector while exhaust valve or wind deflector are applied other direction by spring or elastic steel sheet etc. power between different layers when preventing fire.Operation principle is opened the switch blower fan and is connected the power supply running for when the needs exhaust, and exhaust valve is opened simultaneously, and draining valve is opened, the beginning exhaust.Powered-down blower fan stall when shutting down, exhaust valve closing, draining valve cuts out.

So exhaust lay out is after air-flow enters gas skirt, and through tube connector, by vertically becoming level, through fan air inlet place flexible pipe, blower fan, airflow direction is changed into straight up by level, by the exhaust valve of opening, enters in the vertical exhaust duct, until going out roofing.

So the oil extraction circuit is, airborne oil is separated the back by impeller and enters oil expulsion channel (but also pipe laying causes oil in the pipeline) from entering oil exit pipe (or flow directly into flow into oil expulsion channel in the wind deflector) after oil drain out flows out through draining valve.

Because the crooked circuit of air-flow overlaps with the crooked circuit of original vertical exhaust duct air-flow in the blower fan, thereby transfer with the air-flow that air-flow turnover in the blower fan has replaced requiring herein, on exhaust lay out, eliminated the resistance and the disorder (air-flow is the main positions that capacity descends because of spatial constraints air-flow turnover radius is very for a short time) that produce because of the air-flow turnover herein herein.Simultaneously two air-flows turnovers are eliminated because blower fan shifts out in the gas skirt.

Because tube connector connects from the gas skirt side, the cross section of gas skirt is much larger than the cross section of tube connector, air-flow will rise with a slower speed enter tube connector after turnover, just form big speed (as the enough senior generals of gas skirt be equivalent to directly from indoor air-breathing herein since the crooked loss that produces of air-flow also will eliminate) thus reduced original tube connector and caused air-flow in tube connector, to transfer from the connection of hood top to cause than the macro-energy loss with fast speed.

Because exhaust valve is arranged on fan airflow exit (be installed on the blower fan, on the fan supporter of air flow outlet, on the vertical exhaust duct) and uses motor-driven, exhaust valve forms a lid and covers at air flow outlet, and motor can provide the bigger power of opening the door, and avoids can't opening or can't be airtight because of the oil smoke in the air-flow causes the bonding exhaust valve.Open the back and will arrive vertical exhaust duct without exhaust valve, avoided the windage of exhaust valve at the exhaust lay out overdraught.

Oil expulsion channel is set in exhaust duct makes, remove the trouble of clearing up in traditional lampblack absorber from owing to can directly entering sewer (when oil expulsion channel links to each other with sewer) behind the isolated oil inflow of the centrifugal action of the blower fan oil expulsion channel.

Blower fan is connected with vertically adopting shock mitigation system between the exhaust duct, the one, weaken that vibrations that blower fan itself running causes be the more important thing is when blower fan since in the air-flow oil smoke in the bonding on the impeller (oil smoke being bonded to a certain degree back because action of centrifugal force will do not increasing on the impeller) thus may cause imbalance that blower fan turns round to produce big vibrations and noise can weaken greatly by this shock mitigation system, thereby exempted the necessity of cleaning (scheme adopts spring suspended to divide into the damping modes of shock absorber among the figure, this mode be generally damping modes that roller washing machine is taked and the imbalance vibrations that produced during roller washing machine laundry dehydration will be far longer than because the imbalance of oil smoke bleed shakes).

Utilize exhaust valve or wind deflector to make and design compact and reasonable more as fire resisting damper.At oil drain out valve being set to the pipeline between the oil expulsion channel is to cut off and may enter the blower fan air-flow in the inlet chamber again by oil exit pipe in order to strengthen air-tightness.

Because blower fan does not make in gas skirt that the space can be all as the cushion space of air-flow in the gas skirt, the space makes the gas skirt upper space also can't become the gas collection space simultaneously in the gas skirt and traditional lampblack absorber is owing to blower fan not only itself occupies in gas skirt.

Because blower fan does not make the variation of gas skirt to take various form according to the variation of decorating in gas skirt, as can be fabricated to bright dress form also can be concealed installation (can according to the requirement of on-the-spot cabinet make that gas skirt be installed in the cabinet or the gas skirt made by the cabinet merchant in) or consistent with the form of cabinet.

Because blower fan does not make the cleaning of gas skirt only need simple wiping and can in gas skirt.

Because being positioned at vertical exhaust duct and furred ceiling and vertical exhaust duct, blower fan mostly is manufacturings such as cement pressure plare, vertical exhaust duct and furred ceiling have been isolated noise, and the vibrations of blower fan are difficult for causing that the vibrations of thicker cement pressure plare (through strengthening vertical exhaust duct thickness behind the finishing tiling) cause noise.Strengthened noise source and operator's distance simultaneously.

Curved (one of them is bent for the inner turnover of blower fan because air-flow four turnovers from common path curved (wherein two be respectively in the inner and gas skirt of blower fan the air-flow turnover two air-flows turnovers are curved in addition are respectively in the tube connector and curved at a high speed for little radian in the vertical exhaust duct) are reduced to two turnovers.Another turnover is curved because tube connector connects from the gas skirt side, and air-flow is by entering tube connector after the break-in at a slow speed.) noise that causes when greatly reducing air current flow.

The purpose of design adjustable plate is vertical usually and surface smoothness is not high because of vertical exhaust duct, and adjustable plate is after vertically the exhaust duct adjusted is fixedly finished (slit is with playing glue, adding mode such as mat and seal between adjustable plate and exhaust duct) once.Blower fan is installed on the adjustable plate and can the assurance level from now on, avoids installing and removing from now on difficulty and the trouble that blower fan need be regulated horizontal fan.

For the gas extraction system of using in the toilet, different with the gas extraction system environment that in the kitchen, uses, because foul atmosphere results from the bottom in the toilet, and do not contain oil smoke in the air-flow, the gas extraction system of using in the toilet can be cancelled the shock mitigation system that gas extraction system adopts, and also can use as wishing that noise is lower certainly.Structurally changing blower fan into is installed on the vertical exhaust duct sidewall, air-inlet grille is installed on the vertical exhaust duct lateral wall, the blower fan bottom is provided with wind deflector, and the exit is provided with exhaust valve, still can easy fuse (sheet) be installed on wind deflector and exhaust valve as needs and turn-off when making fire.

Because blower fan is installed on the sidewall of the vertical exhaust duct of gas extraction system, make blower fan can be positioned at (being that air inlet can be positioned on the arbitrary height) on the toilet arbitrary height, can select blower fan is installed on the bottom, toilet this moment, the dirty gas that is positioned at the bottom, toilet like this can be directly discharged from the bottom, sucks and avoid foul atmosphere to be promoted to the human body that the middle part is in wherein in discharge process.Because being installed on the original turning point of air-flow, blower fan make the air-flow turnover of blower fan inside overlap loss and the noise of having avoided air-flow in flow process, to produce with the turnover that air-flow needs simultaneously owing to turnover.Simultaneously because blower fan is not positioned at the vibrations generation noise that the vibrations of having avoided blower fan on the furred ceiling cause furred ceiling.

As owing to need air inlet to be installed on top structurally variable this moment and turn to blower fan and be installed on and on the vertical exhaust duct sidewall wind deflector be installed under blower fan in the furred ceiling (wind deflector can be provided with separately, also can with the blower fan integral production) be connected with the gas skirt side by tube connector, gas skirt is installed on the furred ceiling, and air-inlet grille is installed in the gas skirt exit.Same blower fan is owing to be installed on the vertical exhaust duct sidewall, and the turnover of blower fan internal gas flow overlaps with the turnover that air-flow needs, and has avoided air-flow transfer in the flow process loss of generation and noise and owing to the noise that is installed on the vibrations generation that causes furred ceiling on the furred ceiling.Owing to make air-flow after the low speed turnover, become higher speed again, noise and loss that air-flow turnover herein produces have been reduced simultaneously from the connection of gas skirt side.

Description of drawings

Fig. 1 is the internal structure schematic diagram of embodiment 1;

Fig. 2 is the 1-1 cutaway view among Fig. 1;

Fig. 3 is the 2-2 cutaway view among Fig. 2;

Fig. 4 has installed the structural representation behind the adjustable plate;

Fig. 5 is 1 a sectional view among Fig. 1;

Fig. 6 is the schematic diagram of a kind of gas skirt among the embodiment;

Fig. 7 is the top view of Fig. 6;

Fig. 8 is the internal structure schematic diagram of embodiment 2;

Fig. 9 is the internal structure schematic diagram of embodiment 3;

Figure 10 is the internal structure schematic diagram of embodiment 4;

Figure 11 is the internal structure schematic diagram of embodiment 5;

Figure 12 is the 3-3 cutaway view during Figure 11 is;

Figure 13 is the internal structure schematic diagram of embodiment 6;

Figure 14 is the another kind of structural representation of gas skirt among the embodiment;

Figure 15 is the schematic top view of Figure 14;

Figure 16 is the internal structure schematic diagram of embodiment 7;

Figure 17 is the internal structure schematic diagram of embodiment 8;

Figure 18 shows that the 4-4 cut-away view of Figure 17;

Figure 19 is the internal structure schematic diagram of embodiment 9;

Figure 20 shows that the 5-5 cut-away view of Figure 19;

Shown in Figure 21 is the back of the body diagrammatic sketch of Figure 19;

The internal structure schematic diagram of Figure 22 embodiment 10;

Shown in Figure 23 is the 6-6 cut-away view of Figure 22;

Shown in Figure 24 is the back of the body diagrammatic sketch of Figure 22;

Figure 25 is wherein a kind of schematic diagram of wind deflector among the figure;

Figure 26 is the another kind of schematic diagram of aerofoil;

Figure 27 is the another kind of structural representation of embodiment medium-height trestle.

1. vertical exhaust duct, 2. oil expulsion channel, 3. blower fan, 4. exhaust valves among the figure, 5. limit switch, 6. spring, 7. damping rod, 8. oil drain out, 9. support, 10. adjustable plate, 11. motors, 12. soft connecing, 13. wind deflectors, 14. tube connectors, 15. anchor ear, 16. horizontal direction adjusters, 17. gas skirts, 18. antivibration pad, 19. shock-proof springs, 20. air-inlet grilles, 21. the furred ceiling air-inlet grille, 22. door openers, 23. draining valves, 24. connecting rod, 25. suspension rods, 26. easy fuses (sheet), 27. oil exit pipe, 28. back-moving springs, 29. air inlets, 30. elastic steel sheet, 31. compression springs, 32 decorative panels.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

Embodiment 1

Fig. 1,2,3,4,5,6, blower fan shown in 73 hangs on the support 9 by spring 6 and damping rod 7,9 on blower fan 3 air inlet places and support adopt and softly connect 12 and be connected, adjustable plate 10 (adjusting level and vertical back) is fixed on the vertical exhaust duct 1 [to be beaten glue or cushioning and guarantees sealing (not indicating among the figure)] between adjustable plate and vertical exhaust duct, support 9 is fixed on the adjustable plate 10, the exhaust valve 4 that links to each other with motor 11 is installed in blower fan 3 exits, limit switch 5 is installed on blower fan 3 sides, have oil drain out 8 at blower fan, on vertical exhaust duct 1, be provided with oil expulsion channel 2 and wind deflector 13.Gas skirt 17 by horizontal direction adjuster 16 (when the fan air inlet position with tube connector 14 is connected produce horizontal curvatures, can reduce the bending of tube connector 14 by the rotation of horizontal direction adjuster 16, adjustable water saving simultaneously square is to adjuster 16 and height after gas skirt 17 is connected, when position suitable, can directly link to each other) without horizontal direction adjuster 16 with the gas skirt side.With tube connector 14 logotype anchor ear 15 locking mutually, tube connector 14 link to each other with the fan air inlet place (connected mode can be varied as figure such as usefulness enamel, anchor ear in do not indicate).

Embodiment 2

Embodiment illustrated in fig. 82 differently with embodiment 1 are that fan suspended spring 6 is moved to the blower fan side to be installed, to reduce the height of the machine installing hole that blown on the vertical exhaust duct 1.

Embodiment 3

Embodiment shown in Fig. 93 and embodiment 1 different being add the damping rod 7 shock mitigation system structures that are connected with blower fan with suspension system by the spring 6 that is installed on the support 9, change the shock mitigation system structure that antivibration pad 18 is installed under blower fan into.

Embodiment 4

Embodiment shown in Figure 10 4 and embodiment 1 different being add the damping rod 7 shock mitigation system structures that are connected with blower fan with suspension system by being installed on spring 6 on the support 9, change the direct fan suspended structure of shock-proof spring 19 of passing through on support into.

Embodiment 5

Figure 11,12 illustrated embodiments 5 are to have cancelled suspension system with embodiment 1 difference, blower fan 3 directly is installed on (or support 9 is made one with blower fan) on the support 9, support 9 is installed on the vertical exhaust duct 1, and air-inlet grille 20 is installed outside support, from the direct air intake of vertical airduct side-walls.Motor 11 and exhaust valve 4 are installed on the blower fan, and motor 11 drives the switch of exhaust valve 4, and when exhaust valve 4 moved to desired location, limit switch 5 cut off motor 11 power supplys.Blower fan 3 grades are installed on the bottom of vertical exhaust duct 1 in the toilet usually, and it is curved that so air-flow will only have the inner turnover of blower fan.

Embodiment 6

Embodiment shown in Figure 13 6 is the blower fan bottom is directly made and wind deflector 13 similar inclined-planes replacement wind deflectors 13 with the difference of embodiment 5, improves the ride comfort that air-flow flows in vertical exhaust duct.Blower fan 3 still is installed on the vertical exhaust duct 1 by support 9, drives exhaust valve 4 by the motor 9 that is installed on the blower fan 3, and air-inlet grille 20 is installed on fan airflow import department.

The another kind of structural representation of gas skirt

Figure 14,15 is the another kind of structural representation of gas skirt, tube connector 14 is connected with embodiment blower fan 3 air inlet places among the figure, the other end is connected with gas skirt 17 and (has horizontal direction concurrently and regulate airway dysfunction, promptly be connected with tube connector 14 with the position of fan air inlet when the installation site of gas skirt, when making tube connector 14 need to produce bending, can reduce the bending of tube connector 14) by rotation gas skirt 17.Gas skirt 17 can be fixed in the house on the ceiling, and furred ceiling air-inlet grille 21 can be fixed on the furred ceiling.

Embodiment 7

Embodiment shown in Figure 16 7 is with embodiment 1 difference, driving to valve 4 is finished by the door opener 22 that is installed on the blower fan, drives limit switch 5 and cut off door opener power supply (then limit switch 5 can be cancelled as the built-in limit switch of door opener) when valve 4 is opened or is closed to desired location.

Embodiment 8

Closing function when embodiment shown in Figure 17,18 8 is to have increased fire on exhaust valve 4 with embodiment 1 difference, motor 11 drives suspension rods 25 by easy fuse (sheet) 26 exhaust valve 4 of slinging, back-moving spring 28 1 ends link to each other with exhaust valve 4 other end link to each other with blower fan 3 sides the pulling exhaust valve 4 close, easy fuse 26 (sheet) will fuse when reaching uniform temperature in fire makes vertical exhaust duct 1, exhaust valve 4 cuts out under back-moving spring 28 and self gravitation effect, stops fire spread to indoor.Simultaneously when motor 11 is opened exhaust valve 4, open draining valve 23 simultaneously in that draining valve 23 has been installed on the oil drain out 8 by connecting rod 24, discharge by the isolated oil of impeller in the blower fan to oil expulsion channel 2.If the purpose of this draining valve mainly be prevent gas when blower fan 3 shutdown through oil expulsion channel 2 in oil drain out 8 inlet chambers.Figure 18 is the 4-4 cutaway view of Figure 17.

Embodiment 9

Embodiment shown in Figure 19,20,21 9 is with the difference of embodiment 8, exhaust valve 4 is installed on the support 9, and motor 11 and draining valve 23, limit switch 5, back-moving spring 28 all are installed on support 9, be positioned on the side outside the vertical exhaust duct 1, (also can be installed on the side of support 9 in vertical exhaust duct 1), the blower fan import and export connects 12 and is connected with support 9 by soft, can utilize soft 12 (soft inner lining springs that connect) and the spring 6 suspention blower fans 3 of connecing.Still when opening exhaust valve 4, open draining valve 23 by motor 11, close draining valve when closing exhaust valve by connecting rod 24.29 are depicted as air inlet among the figure.27 are depicted as oil exit pipe.When support 9 can connect 12 cancellations (still adopting the shock mitigation system among other embodiment this moment) with blower fan 3 exits are soft during for sealing (as shown in this figure).

Embodiment 10

Embodiment shown in Figure 22,23,24 10 is that with the difference of embodiment 9 wind deflector 13 is installed on the elastic steel sheet 31, pass wind deflector 13 by easy fuse 26 and to vertical exhaust duct 1, hold wind deflector 13, when easy fuse 26 fusing of the fusing point that reaches easy fuse (sheet) 26 because of fire temperature, under the self gravitation effect of elastic steel sheet 30 and wind deflector 13, wind deflector 13 will fall down to stop air-flow rising in the vertical exhaust duct 1.Closing function during respective row valve 4 cancellation fire, all the other are identical with embodiment 9.

Two kinds of schematic diagrames in addition of wind deflector

Wind deflector 13 shown in Figure 25 is installed on the vertical exhaust duct 1 by hinge, between vertical exhaust duct 1 and wind deflector 13 elastic steel sheet 30 is installed.When the fusing point that reaches easy fuse (sheet) 26 because of fire temperature, easily fuse 26 fusing are under the self gravitation effect of elastic steel sheet 30 and wind deflector 13, and wind deflector 13 will fall down to stop air-flow to rise.

Figure 26 and Figure 25 difference are the elastic steel sheet 30 between wind deflector 13 and the vertical exhaust duct 1 is replaced by compression spring 31.

The another kind of structural representation of support

The another kind of structural representation of support shown in Figure 27 and embodiment 5 differences are that at support 9 frame places decorative panel 32 can be installed is stuck in (the installation screw when being installed on the air intake duct 1 in order to block support directly is provided with grid (expression of not drawing) at support 9 blower fans 3 air inlet places) on the support 9.

For the different mounting means of the blower fan among the figure at vertical exhaust duct sidewall, the different form of wind deflector, exhaust valve, support, gas skirt, the position of oil expulsion channel etc. all can be made up again as required, be adjusted, remove, and enumerate no longer one by one.

Claims

1. gas extraction system, it is characterized in that: the blower fan that air stream outlet makes progress is arranged in the vertical exhaust duct, and its airflow inlet level is stretched out vertical exhaust duct sidewall.

2. according to the described gas extraction system of claim 1, it is characterized in that: blower fan is positioned on the sidewall of the vertical exhaust duct of gas extraction system.

3. according to claim 1 or 2 described gas extraction system, it is characterized in that: in vertical exhaust duct, be provided with wind deflector.

4. according to claim 1 or 2 described gas extraction system, it is characterized in that: in vertical air flue, be provided with oil expulsion channel.

5. according to claim 1 or 2 described gas extraction system, it is characterized in that: in vertical exhaust duct, the fan airflow exit is provided with exhaust valve.

6. according to claim 1 or 2 described gas extraction system, it is characterized in that: blower fan links to each other with vertical exhaust duct and adopts suspension system.

7. according to claim 1 or 2 described gas extraction system, it is characterized in that: blower fan top adopts spring suspended in support top, and the bottom is connected on the support by the damping rod, and support links to each other with vertical exhaust duct.

8. according to claim 1 or 2 described chamber gas systems, it is characterized in that: blower fan links to each other with vertical exhaust duct by support after adopting bottom installing beam.

9. according to claim 1 or 2 described gas extraction system, it is characterized in that: blower fan employing shock-proof spring is suspended on the support and links to each other with vertical exhaust duct.

10. according to claim 1 or 2 described gas extraction system, it is characterized in that: blower fan links to each other with vertical exhaust duct by support, is provided with adjustable plate between support and the vertical exhaust duct.

11. according to claim 1 or 2 described gas extraction system, it is characterized in that: further comprising the tube connector that connects in the airflow inlet of blower fan, the tube connector other end links to each other with the gas skirt side.

12. according to the described gas extraction system of claim 11, it is characterized in that: tube connector links to each other with the horizontal direction adjuster and links to each other with gas skirt.

13. according to the described gas extraction system of claim 5, it is characterized in that: exhaust valve links to each other with easy fuse, and easily fuse links to each other with suspension rod, and exhaust valve one end links to each other with back-moving spring.

14. according to the described gas extraction system of claim 5, it is characterized in that: exhaust valve is positioned on the blower fan.

15. according to the described gas extraction system of claim 5, it is characterized in that: exhaust valve is positioned on the support.

16. according to the described gas extraction system of claim 3, it is characterized in that: wind deflector links to each other with elastic steel sheet, elastic steel sheet links to each other with vertical exhaust duct, and wind deflector links to each other with easy fuse, and easily fuse links to each other with vertical exhaust duct elastic steel sheet.

17. according to the described gas extraction system of claim 3, it is characterized in that: wind deflector links to each other with vertical exhaust duct, and easily the fuse two ends link to each other with wind deflector with vertical exhaust duct respectively, and a spring leaf or both ends of the spring link to each other with airduct with wind deflector respectively.

18. according to claim 1 or 2 described gas extraction system, it is characterized in that: blower fan is the inclined-plane down.

19. according to claim 1 or 2 described gas extraction system, it is characterized in that: blower fan is connected on the support, support links to each other with decorative panel.

20. according to claim 1 or 2 described gas extraction system, it is characterized in that: blower fan is installed on indoor bottom.