CN204717954U - The rear-mounted balanced ventilation device of a kind of blowing and drawing ventilation system blower - Google Patents
The rear-mounted balanced ventilation device of a kind of blowing and drawing ventilation system blower Download PDFInfo
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- CN204717954U CN204717954U CN201520133957.3U CN201520133957U CN204717954U CN 204717954 U CN204717954 U CN 204717954U CN 201520133957 U CN201520133957 U CN 201520133957U CN 204717954 U CN204717954 U CN 204717954U
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Abstract
The utility model relates to the rear-mounted balanced ventilation device of a kind of blowing and drawing ventilation system fan, be mainly used in the air-supply of the Work places Occupational hazard protection blowing and drawing ventilation systems such as welding, brush coating, the rear-mounted balanced ventilation device of this blowing and drawing ventilation system blower comprises air-supply arrangement shell, frequency conversion fan, cowling panel, homogenizing plate and screen pack and protection network.It is characterized in that: described frequency conversion fan is be placed in the frequency conversion fan in air-supply arrangement shell; Described cowling panel is that at least two-layer porous plate that thickness is less than 2mm keeps at a certain distance away the fairing formed, and between frequency conversion fan and homogenizing plate, and leaves certain interval; Described homogenizing plate is the cellular porous plate that thickness is less than 30mm.The rear-mounted balanced ventilation device of described blowing and drawing ventilation system blower is moveable independent air-feeding unit, there is provided air mobilization dynamic by described frequency conversion fan, by the combination of cowling panel and homogenizing plate improve blow the uniformity, reduce equipment resistance.
Description
Technical field
The present invention relates to a kind of blowing and drawing ventilation system, especially relate to the rear-mounted balanced ventilation device of a kind of blowing and drawing ventilation system fan, may be used for Occupational Diseases Harm Control.
Background technology
At Occupational Disease Hazards control field, blowing and drawing ventilation system effectively can increase the command range of harmful substance, air-flow isotypy blowing and drawing ventilation system both effectively can control harmful substance, do not affect production technology and labout process again, the protection of the Work places Occupational Disease Hazards such as welding, brush coating can be widely used in.
Existing blowing and drawing ventilation system air-supply arrangement mainly comprises two kinds.Be an air-supply arrangement for free jet, the air-supply of this device is generally free jet at a high speed, cannot guarantee the uniformity of air-flow; Another is the air-supply arrangement be made up of single or multiple lift microwell plate, but the current-sharing effect of air-supply arrangement is not very good, and crushing is larger.
Summary of the invention
In order to solve current technological deficiency, the object of this invention is to provide the rear-mounted balanced ventilation device of a kind of blowing and drawing ventilation system blower, improving the airflow homogeneity of air-supply arrangement.
Specifically the invention provides the rear-mounted balanced ventilation device of a kind of blowing and drawing ventilation system blower, comprise air-supply arrangement device housings, frequency conversion fan, cowling panel, homogenizing plate and screen pack and protection network, it is characterized in that: described air-supply arrangement is moveable independent air-feeding device, frequency conversion fan, protection network, homogenizing plate, cowling panel, screen packs etc. are all fixed on device housings, device housings is fixed on rack, there is below described rack the pulley gear that can be used for movement, screen pack, frequency conversion fan, cowling panel, homogenizing plate, protection network, arrange successively by air flow, and a determining deviation is set each other.
Especially, described cowling panel is at least two-layer porous plate that thickness is less than 2mm, and keep at a certain distance away between them setting.
Especially, described cowling panel is set to multilayer orifice plate, and the interlaced setting of plate hole of mutual each layer cowling panel, and the alignment of the plate hole of ground floor and last one deck cowling panel, be also provided with filter cotton among the plate hole of described cowling panel.
Especially, described frequency conversion fan is 2 frequency conversion fans be placed in air-supply arrangement shell.
Further, also comprise water circulation system, described water circulation system comprises the hydrops groove below the rack being arranged on described blower fan, and micromachine, water in hydrops groove is drawn into the top of the curtain that drips be arranged between homogenizing plate and cowling panel by described micromachine, and described water is with in the hydrops groove fallen back under gravity along the curtain that drips in rack.
Especially, described hydrops groove also has moisturizing and changes the function of water, and described hydrops groove can take out from rack, removes wherein with serious pollution water, after changing clear water, then is inserted in rack.
Especially, described homogenizing plate is carved with many water legs from top to down, and described water leg is communicated with the hydrops groove in rack.
Especially, positive correlation between the rotating speed of described frequency conversion fan and the rotating speed of described micromachine.
Especially, described homogenizing plate is the cellular porous plate that thickness is less than 30mm.
The rear-mounted balanced ventilation device of described blowing and drawing ventilation system blower is moveable independent air-feeding unit, there is provided air mobilization dynamic by described frequency conversion fan, by the combination of cowling panel and homogenizing plate improve blow the uniformity, reduce equipment resistance.
Accompanying drawing explanation
Fig. 1 is the front view of the rear-mounted balanced ventilation device of blowing and drawing ventilation system blower of the present invention.
Fig. 2 is the right view of the rear-mounted balanced ventilation device of blowing and drawing ventilation system blower of the present invention.
1, device housings, 2, frequency conversion fan, 3, protection network, 4, homogenizing plate, 5, cowling panel; 6, screen pack.; 7, rack
Detailed description of the invention
The moveable rear-mounted balanced ventilation device of blower fan in blowing and drawing ventilation system of the present invention.
This device is by device housings (1), frequency conversion fan (2), protection network (3), homogenizing plate (4), cowling panel (5), screen pack (6) six part is formed, frequency conversion fan (2), protection network (3), homogenizing plate (4), cowling panel (5), screen pack (6) etc. is all fixed on device housings, device housings is fixed on rack, there is below described rack the pulley gear screen pack (6) that can be used for movement, frequency conversion fan (2), cowling panel (5), homogenizing plate (4), protection network (3) is arranged successively by air flow, and a determining deviation is set each other.
Screen pack (6) is made up of the metal abortive haul and filter cotton with supporting role, and being designed to can the frame mode of convenient dismounting, for preventing the suction of foreign matter and big dust particle.The two-layer above porous plate that cowling panel (5) is less than 2mm by thickness keeps at a certain distance away structure, for the air-flow of frequency conversion fan is carried out rectification, promotes airflow homogeneity.In a preferred embodiment, described cowling panel (5) is sandwich construction, and the interlaced setting of plate hole of mutual each layer cowling panel, and the alignment of the plate hole of ground floor and last one deck cowling panel.Especially, also filter cotton is provided with among the plate hole of described cowling panel, this filter cotton such as can stick on the inwall of described plate hole, like this when air-flow is through every layer of cowling panel, because the hole between each laminate is staggered, such air-flow can be changed direction between each laminate, ceaselessly clashes into the plate hole of every laminate, serves the effect of filtered air so further.Meanwhile, this being crisscross arranged can eliminate air-flow vector in a rotational direction, makes air-flow air-out more even, the more unification of last velocity attitude.
Homogenizing plate (4) thickness is less than the cellular porous plate of 30mm, for promoting the uniformity of air-flow further, guarantees the uniformity that air-supply arrangement is blown.
Protection network (3) is stainless steel abortive haul, mainly for the protection of homogenizing plate (4).
In a preferred embodiment, blowing and drawing ventilation system of the present invention also comprises water circulation system, for washing pressure-vaccum air and filter.This water circulation system comprises the hydrops groove below the rack 7 being arranged on described blower fan, and micromachine, the water in hydrops groove is drawn into the top of the curtain (not shown) of dripping be arranged between homogenizing plate (4) and cowling panel (5) by described micromachine.The described curtain that drips can be the sponge such as with water absorbing capacity, is provided with dropping bath above it, for receiving the recirculated water that micromachine transports.Dropping bath is evenly distributed in the top of described water suction curtain, by water droplet on water suction curtain.Regulate the power of motor can control the speed of dropping water of dropping bath.Such as when needs carry out high speed blow time, the speed of dripping can be increased.The benefit of curtain of dripping is adopted to be can molecule further in eccysis air.Such air has just had three layer filtration.Namely ground floor be screen pack (6) filter, the second layer be cowling panel (5) filter, third layer position drip curtain filter.Meanwhile, this can also play the effect of decreasing temperature and increasing humidity in summer, is apparent to the benefit of human body.Major part recirculated water can fall back to along with the curtain that drips in the hydrops groove in rack 7 under gravity, then is circulated by motor next time.Especially, described hydrops groove also has moisturizing and changes the function of water.Described hydrops groove can take out from rack, removes wherein with serious pollution water, after changing clear water, is being inserted in rack.
When adopting water circulation system, in the homogenizing plate of correspondence (4), from top to down, water leg need be set.Air after the curtain that drips can carry a certain amount of steam, does not wish to see if steam is too much for we, therefore engraves water leg on the plate hole surface of homogenizing plate, and steam unnecessary so just can flow in the hydrops groove of below rack along water leg.
During the work of blowing and drawing ventilation system blower of the present invention rear-mounted balanced ventilation device, frequency conversion fan (2) provides distinguished and admirable power, and air enters from screen pack (6), prevents entering of foreign matter and big dust particle; Air through protection network (3) blowout, realizes the object sending even wind after cowling panel (5) and the abundant rectification of homogenizing plate (4).
Although describe in detail invention has been in conjunction with the embodiments; but those skilled in the art are with being to be understood that; all permission not deviating from various corrections, deformation under the present invention's spirit and essence, among the protection domain that they all fall into the claims in the present invention.
Claims (9)
1. the rear-mounted balanced ventilation device of blowing and drawing ventilation system blower, comprise air-supply arrangement device housings, frequency conversion fan, cowling panel, homogenizing plate and screen pack and protection network, it is characterized in that: described air-supply arrangement is moveable independent air-feeding device, frequency conversion fan, protection network, homogenizing plate, cowling panel, screen packs etc. are all fixed on device housings, device housings is fixed on rack, there is below described rack the pulley gear that can be used for movement, screen pack, frequency conversion fan, cowling panel, homogenizing plate, protection network, arrange successively by air flow, and a determining deviation is set each other.
2. the rear-mounted balanced ventilation device of blowing and drawing ventilation system blower according to claim 1, is characterized in that: described cowling panel is at least two-layer porous plate that thickness is less than 2mm, and keep at a certain distance away between them setting.
3. the rear-mounted balanced ventilation device of blowing and drawing ventilation system blower according to claim 2, it is characterized in that: described cowling panel is set to multilayer orifice plate, and the interlaced setting of plate hole of mutual each layer cowling panel, and the alignment of the plate hole of ground floor and last one deck cowling panel, be also provided with filter cotton among the plate hole of described cowling panel.
4. the rear-mounted balanced ventilation device of blowing and drawing ventilation system blower according to claim 3, is characterized in that: described frequency conversion fan is 2 frequency conversion fans be placed in air-supply arrangement shell.
5. the rear-mounted balanced ventilation device of blowing and drawing ventilation system blower according to claim 1-4 any one, it is characterized in that: also comprise water circulation system, described water circulation system comprises the hydrops groove below the rack being arranged on described blower fan, and micromachine, water in hydrops groove is drawn into the top of the curtain that drips be arranged between homogenizing plate and cowling panel by described micromachine, in the hydrops groove that the suitable curtain that drips of described water falls back in rack under gravity.
6. the rear-mounted balanced ventilation device of blowing and drawing ventilation system blower according to claim 5, it is characterized in that: described hydrops groove also has moisturizing and changes the function of water, described hydrops groove can take out from rack, remove wherein with serious pollution water, after changing clear water, then be inserted in rack.
7. the rear-mounted balanced ventilation device of blowing and drawing ventilation system blower according to claim 6, it is characterized in that: described homogenizing plate is carved with many water legs from top to down, described water leg is communicated with the hydrops groove in rack.
8., according to the rear-mounted balanced ventilation device of blowing and drawing ventilation system blower described in any one in claim 6 or 7, it is characterized in that: positive correlation between the rotating speed of described frequency conversion fan and the rotating speed of described micromachine.
9., according to the rear-mounted balanced ventilation device of blowing and drawing ventilation system blower described in any one in claim 6 or 7, it is characterized in that described homogenizing plate is the cellular porous plate that thickness is less than 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520133957.3U CN204717954U (en) | 2015-03-10 | 2015-03-10 | The rear-mounted balanced ventilation device of a kind of blowing and drawing ventilation system blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520133957.3U CN204717954U (en) | 2015-03-10 | 2015-03-10 | The rear-mounted balanced ventilation device of a kind of blowing and drawing ventilation system blower |
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| CN204717954U true CN204717954U (en) | 2015-10-21 |
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| CN201520133957.3U Active CN204717954U (en) | 2015-03-10 | 2015-03-10 | The rear-mounted balanced ventilation device of a kind of blowing and drawing ventilation system blower |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676808A (en) * | 2015-03-10 | 2015-06-03 | 中国安全生产科学研究院 | Balanced ventilation device with rear-mounted blower in blowing and suction type ventilation system |
| CN107702255A (en) * | 2017-11-02 | 2018-02-16 | 中国安全生产科学研究院 | A kind of large area uniformly descends air draft workbench |
-
2015
- 2015-03-10 CN CN201520133957.3U patent/CN204717954U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676808A (en) * | 2015-03-10 | 2015-06-03 | 中国安全生产科学研究院 | Balanced ventilation device with rear-mounted blower in blowing and suction type ventilation system |
| CN104676808B (en) * | 2015-03-10 | 2017-08-11 | 中国安全生产科学研究院 | A kind of rear-mounted balanced ventilation device of blowing and drawing ventilation system blower |
| CN107702255A (en) * | 2017-11-02 | 2018-02-16 | 中国安全生产科学研究院 | A kind of large area uniformly descends air draft workbench |
| CN107702255B (en) * | 2017-11-02 | 2023-12-22 | 中国安全生产科学研究院 | Large-area uniform downward exhaust workbench |
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