CN2934991Y

CN2934991Y - Fan filtering unit FFU flow passage

Info

Publication number: CN2934991Y
Application number: CN 200620032351
Authority: CN
Inventors: 张利群; 马运五; 张树芳
Original assignee: HENAN MIJING RUIFA PURIFYING FACILITIES CO Ltd
Current assignee: HENAN MIJING RUIFA PURIFYING FACILITIES CO Ltd
Priority date: 2006-08-30
Filing date: 2006-08-30
Publication date: 2007-08-15
Anticipated expiration: 2016-08-30

Abstract

A blower fan filtration unit FFU flow channel comprises a blower fan scroll, a left vortex splitter and a right vortex splitter, a left air outlet and a right air outlet, a flow expansion board, a tuyere splitter and a cuboid housing. A flow channel is formed between the blower fan scroll, the left vortex splitter and the right vortex splitter. The left vortex splitter, the right vortex splitter and the upper air outlet and the lower air outlet are arranged in a diagonal and dissymmetric manner. Air starts from the flow expansion board, passes through an inflection surface, then a cambered surface, then to a round face, then returns to a linear plane segment that is a transitive segment of the cambered surface, then flows to the air outlet. An included angle is formed between the air outlet splitter A and level, which is beta. An included angle, which is Alpha, is formed between the vertical direction and the splitter B arranged on internal surface of the cuboid housing in the air outlet and. The utility model can reduce noise effectively, and give out air uniformly and is easy to be promoted and generalized in market.

Description

Blower fan filtering unit FFU runner

One, technical field

The utility model relates to a kind of air flow channel of industrial ventilation device, particularly relates to the runner of a kind of FFU.

Two, background technology

FFU is the abbreviation of FAN FILTER UNIT, Chinese is called " blower fan filtering unit " and just blower fan and filter { high efficiency particulate air filter (HEPA) or super high efficient filter (ULPA) } is combined the terminal cleaning equipment that formation self can provide power, the air outlet of past high efficiency particulate air filter of band blower fan commonly used in clean engineering, self-purifier, laminar flow hood etc. all are a kind of of FFU.Occurring on market as the end equipment FFU of toilet is the thing in nearly ten years, that uses in Japan, Korea S and China Taiwan in early days is more, at present at home on the engineering, adopt also more and more, development speed is more and more faster, not only adopted high the purification in other way flow toilet of level of large tracts of land, and in the mixed flow toilet of large tracts of land way flow and the combination of non-way flow, also adopted, not only in the electronics industry toilet, extensively adopt, and in the toilet of other various uses, also adopted.Because it is good that FFU has a flexibility, adapt to technology change ability strong, adopt negative-pressure sealing to make its simplification and reliable, save advantage such as Air Conditioning Facilities area again greatly and be employed in widely in the clean engineering of newly-built, reconstruction and enlarging.Especially adapt to the reorganization and expansion project low at floor height, that machine room area is not enough.For the adaptability of technology change, FFU more has its superiority.When technological development need improve clean rank, the quantity of taking to increase FFU just can reach the purpose that improves cleanliness factor.Not only make things convenient for and do not influence normally carrying out of production again.

Noise in the FFU performance is one of important techniques index, each producer and most of technical staff's research emphasis also here, and the design of runner and noise have much relations, the difficult point of runner design also at noise reduction here.

Three, utility model content

In order to solve above technical problem in the known technology, the utility model proposes the runner of a kind of blower fan filtering unit FFU.

The technical solution of the utility model is: a kind of blower fan filtering unit FFU runner, contain fan scroll, a left side, right eddy current deflector, a left side, right air outlet, expand the stream plate, the air port deflector, the cuboid housing, it is characterized in that: on a fan scroll and a left side, form runner between the right eddy current deflector, a left side, right eddy current deflector and last, following air outlet diagonal angle antisymmetry is installed, begin to carry out the transition to the arc surface section to the arcwall face section from the expansion stream plate face of air outlet through turnover face, the straight line planar section that arrives the transition of cambered surface section again is to air outlet, air outlet deflector A and horizontal plane angle are β, and being installed on the deflector B of cuboid shell inner surface and the angle of vertical direction in air outlet is α.

Described angle α is 20 °≤α≤60 °, and angle β is 20 °≤β≤60 °.

Arc transition is adopted in described housing upper bottom surface and junction, shell end side, or adopts the chamfering transition.

The inner surface of described deflector A and the inner surface of spiral case are equipped with the noise reduction cotton.

The beneficial effects of the utility model

1, effectively reduced noise.

The problem of noise is on record in the research of FFU runner, this use is novel when adopting spiral case to eliminate the noise, adopt chamfering transition or arc transition in the upper bottom surface and the housing sidewall junction of housing in addition, and the noise reduction cotton that is arranged on the inner surface of the inner surface of air-flow guide plate and spiral case, also performing meritorious deeds never to be obliterated aspect the noise reducing; The noise of this utility model is lower than 53db (A).

2, effectively to the air-flow guiding, make its air-out even.

The utility model adopt spiral case to the air-flow channeling conduct time, also be provided with flanging at deflector A edge, and the deflector B that is provided with at the shell end sidewall, also air-flow is played guiding function, form two strands of air-flows of symmetry, and last two strands of air-flows liquidate mutually and break up, thereby the air-out that realizes air-flow is even.

Four, description of drawings

Fig. 1 faces one of sectional structure schematic diagram for blower fan filtering unit FFU runner

Fig. 2 overlooks the sectional structure schematic diagram for blower fan filtering unit FFU runner

Fig. 3 faces two of sectional structure schematic diagram for blower fan filtering unit FFU runner

Fig. 4 faces three of sectional structure schematic diagram for blower fan filtering unit FFU runner

Five, the specific embodiment

Embodiment one: referring to Fig. 1, Fig. 2, the runner of a kind of blower fan filtering unit FFU among the figure, contain fan scroll 5, a left side, right eddy current deflector 2, a left side, right air outlet, expand the stream plate, air port deflector 3, cuboid housing 1, it is characterized in that: on a fan scroll 5 and a left side, form runner between the right eddy current deflector 2, a left side, right eddy current deflector 2 and last, following air outlet diagonal angle antisymmetry is installed, begin to carry out the transition to the arc surface section to the arcwall face section from the expansion stream plate face of air outlet through turnover face, the straight line planar section that arrives the transition of cambered surface section again is to air outlet, and air outlet deflector A3 and horizontal plane angle are β, and being installed on the deflector B4 of cuboid shell inner surface and the angle of vertical direction in air outlet is α; Described angle α is 20 °, and angle β is 20 °; The inner surface of the inner surface of described deflector A3 and eddy current deflector 2 is equipped with the noise reduction cotton.

Embodiment two: referring to Fig. 1, and Fig. 3, embodiment two and embodiment one are basic identical, and the representative meaning that number in the figure is identical is identical, no longer repeats, and difference is: the chamfering transition is adopted in described housing upper bottom surface among the embodiment two and junction, shell end side.

Embodiment three: referring to Fig. 1, and Fig. 4, embodiment three and embodiment one are basic identical, and the representative meaning that number in the figure is identical is identical, no longer repeats, and difference is: arc transition is adopted in housing upper bottom surface described in the embodiment three and junction, shell end side.

Embodiment four: referring to Fig. 1, and Fig. 2, embodiment four and embodiment one are basic identical, and the representative meaning that number in the figure is identical is identical, no longer repeats, and difference is: the angle α described in the embodiment four is 30 °, and angle β is 30 °.

Embodiment five: referring to Fig. 1, and Fig. 2, embodiment five and embodiment one are basic identical, and the representative meaning that number in the figure is identical is identical, no longer repeats, and difference is: the angle α described in the embodiment five is 30 °, and angle β is 60 °.

Embodiment six: referring to Fig. 1, and Fig. 2, embodiment six and embodiment one are basic identical, and the representative meaning that number in the figure is identical is identical, no longer repeats, and difference is: the angle α described in the embodiment six is 60 °, and angle β is 30 °.

Embodiment seven: referring to Fig. 1, and Fig. 2, embodiment seven and embodiment one are basic identical, and the representative meaning that number in the figure is identical is identical, no longer repeats, and difference is: the angle α described in the embodiment seven is 60 °, and angle β is 60 °.

Claims

1, a kind of blower fan filtering unit FFU runner, contain fan scroll, a left side, right eddy current deflector, a left side, right air outlet, expand the stream plate, the air port deflector, the cuboid housing, it is characterized in that: on a fan scroll and a left side, form runner between the right eddy current deflector, a left side, right eddy current deflector and last, following air outlet diagonal angle antisymmetry is installed, begin to carry out the transition to the arc surface section to the arcwall face section from the expansion stream plate face of air outlet through turnover face, the straight line planar section that arrives the transition of cambered surface section again is to air outlet, air outlet deflector A and horizontal plane angle are β, and being installed on the deflector B of cuboid shell inner surface and the angle of vertical direction in air outlet is α.

2, blower fan filtering unit FFU runner according to claim 1 is characterized in that: described angle α is 20 °≤α≤60 °, and angle β is 20 °≤β≤60 °.

3, blower fan filtering unit FFU runner according to claim 1 is characterized in that: arc transition is adopted in described housing upper bottom surface and junction, shell end side, or adopts the chamfering transition.

4, according to the described blower fan filtering unit FFU of the arbitrary claim of claim 1-3 runner, it is characterized in that: the inner surface of described deflector A and the inner surface of spiral case are equipped with the noise reduction cotton.