CN2751271Y

CN2751271Y - Wind knife with adjustable wind speed

Info

Publication number: CN2751271Y
Application number: CN 200420115004
Authority: CN
Inventors: 李顾宝
Original assignee: Huahui Science & Technology Co Ltd
Current assignee: Huahui Science & Technology Co Ltd
Priority date: 2004-10-28
Filing date: 2004-10-28
Publication date: 2006-01-11
Anticipated expiration: 2014-10-28

Abstract

The utility model discloses a wind knife with adjustable wind speed, which comprises a wind knife seat which is provided with a wind inlet and a wind outlet, and the inner part of the cavity of the wind knife seat is fixedly provided with a partition board which is provided with wind outlet holes; the upper surface or the lower surface of the partition board is also provided with a translational movable partition board which is provided with air outlet holes. A wind knife of the utility model uses the translation of the movable partition board to adjust the wind flow and the wind speed of the air passing through a wind chamber; thereby, the wind speed and the wind pressure of the air outlet can be changed, and the wind knife can meet different needs. Meanwhile, the wind flow of different positions can also be adjusted through the movable partition board, and the wind speed and the wind pressure keep uniform. In addition, the wind outlet of the utility model is provided with a wind direction adjusting plate, and the purpose of adjusting the wind direction through changing the installing mode of the wind direction adjusting plate. The improvements of the wind speed and the wind direction of the wind knife of the utility model are favorable for controlling working conditions and improving the work efficiency of the wind knife.

Description

The air knife of adjustable wind speed

Technical field

The utility model relates to a kind of air knife.

Back of the body amount technology

As shown in Figure 1, traditional air knife has the air knife seat 3 of a hollow, and air knife seat 3 is provided with an air intake vent 1, also is provided with an elongated air outlet 2.Gas blasts from air intake vent 1, thereby forms air knife from 2 ejections of elongated air outlet.If in air knife seat 3 cavitys heating wire is set, gas can obtain heating in the chamber, and can directly be sprayed onto through the air that heats needs place dry or heating, so air knife is a kind of dry means commonly used in the industrial production.The gas that sprays from air knife can also be sprayed onto body surface to remove tiny grit.Be fixed with a dividing plate 4 in air knife seat 3 cavitys, as shown in Figure 2, offer a plurality of exhaust vents 41 on the dividing plate 4, gas passes exhaust vent 41 from air outlet 2 ejections, to reach even air outlet wind speed and blast everywhere.Because exhaust vent 41 is changeless, therefore the speed from the air-flow of air outlet 2 ejections is unmodifiable, can't adjust wind speed and pressure as required, and underaction is difficult to adapt to the requirement of different occasions in the use.And gas is after entering air knife seat air compartment, and air velocity, air pressure all change, and makes forr a short time than the wind speed of near-end apart from the wind speed of air intake vent far-end, causes the gas velocity that blows out from air outlet also inhomogeneous.

Summary of the invention

The purpose of this utility model is to provide a kind of and regulates wind speed, blast, and the uniform air knife of air-out.

The air knife of adjustable wind speed of the present utility model is achieved through the following technical solutions: comprise an air knife seat, the air knife seat is provided with air intake vent and air outlet, set firmly a dividing plate that offers exhaust vent in the air knife seat cavity, but it is characterized in that the upper surface of described dividing plate or the active clapboard that lower surface also is provided with translation, offer exhaust vent on the dividing plate.

Air knife of the present utility model, utilize the translation of an active clapboard, make perforate on the active clapboard corresponding with the perforate of stationary barrier or stagger, when the perforate of last lower clapboard overlaps, hole opening maximum, gas flows to the passage maximum of air outlet from the air knife seat, and the gas flow maximum is also maximum from the air velocity that air outlet bloats.When on the active clapboard with stationary barrier on perforate when staggering, the hole openings get smaller, gas flow diminishes, the air velocity that bloats from air outlet also diminishes.Like this, just can reach the purpose that adjusts the air port air velocity, make air knife can adapt to different needs by the position that changes active clapboard.Simultaneously, can also regulate the size that air knife diverse location wind hole openings of sizes is controlled air-flow, wind speed and blast uniformity that air outlet is blown out.In addition, the utility model also is provided with wind direction adjusting plate at air outlet, reaches the purpose of regulating wind direction by the mounting means that changes wind direction adjusting plate.The utility model helps the control of condition of work to the improvement of air knife wind speed and wind direction, has improved the operating efficiency of air knife.

Description of drawings

Fig. 1 is the structural representation of existing air knife.

Fig. 2 is an existing fixed diaphragm structure schematic diagram.

Fig. 3 is the utility model dividing plate vertical view.

Fig. 4 is the utility model bulkhead sides view.

Fig. 5 is the utility model is installed wind direction adjusting plate at air outlet a schematic diagram.

Fig. 6 is the B enlarged drawing of Fig. 5.

Fig. 7 is a kind of mounting means schematic diagram of the utility model wind direction adjusting plate.

Fig. 8 is the another kind of mounting means schematic diagram of the utility model wind direction adjusting plate.

The specific embodiment

As shown in Figure 3, Figure 4, active clapboard 5 is installed on stationary barrier 4 surfaces.Active clapboard 5 can be installed in stationary barrier 4 upper surfaces, also can be installed in stationary barrier 4 lower surfaces.Active clapboard 5 can be that a monoblock is covered in the stationary barrier surface, also can form translation in opposite directions by two.

Offer exhaust vent

41 and 51 respectively on stationary barrier 4 and the active clapboard 5, the aperture and the arrangement mode of

exhaust vent

41,51 are normally identical.When exhaust vent 41 overlapped with exhaust vent 51 fully, the flow that gas passes through from exhaust vent was maximum.After the active clapboard translation, exhaust vent 51 will misplace with exhaust vent 41, and the part of exhaust vent will be hidden mutually, has therefore reduced the flow that gas passes through from exhaust vent.

As shown in Figure 4, active clapboard 5 is installed on the air knife seat sidewall, and screw-in by screw or back-out or other governor motion make its translation, and governor motion can be a multiple mode of the prior art, does not limit this regulative mode in the utility model.

As shown in Figure 5, be symmetrically installed with a pair of wind

direction adjusting plate

7,8 on the outer wall of air outlet 2, and with bolted.From Fig. 6 as seen, the side of wind

direction adjusting plate

7,8 is respectively quadrangle EFGH and quadrangle E ' F ' G ' H '.The angle of air outlet 2 is 2 θ, and the angle of ∠ FEH and ∠ F ' E ' H ' is 0, and the angle of ∠ FGH and ∠ F ' G ' H ' is 2 θ.Therefore, hypotenuse EF and GH always are parallel to the air outlet outer wall.When wind

direction adjusting plate

7,8 was installed as shown in Figure 6, airflow direction did not change, and remains perpendicular to body surface.When wind

direction adjusting plate

7,8 is installed as shown in Figure 7, air-flow wind direction side direction air outlet right-hand.When wind

direction adjusting plate

7,8 was installed as shown in Figure 8, air-flow outwards disperseed to blow out from air outlet.In the present embodiment, enumerate wherein three kinds of modes, be not limited to these mounting means of wind direction adjusting plate in the practice.

Claims

1, a kind of air knife of adjustable wind speed, comprise an air knife seat (3), the air knife seat is provided with air intake vent (1) and air outlet (2), set firmly a dividing plate (4) that offers exhaust vent (41) in air knife seat (3) cavity, it is characterized in that: described dividing plate (4) but upper surface or lower surface also are provided with the active clapboard (5) of translation, offer exhaust vent (51) on the dividing plate (5).

2, the air knife of adjustable wind speed according to claim 1 is characterized in that: described exhaust vent (51) is identical with described exhaust vent (41) aperture.

3, the air knife of adjustable wind speed according to claim 1 and 2 is characterized in that: described movable regulating plate (5) has two, can be independently of one another along dividing plate (4) surface translation.

4, the air knife of adjustable wind speed according to claim 1, it is characterized in that: described air outlet (2) outer wall is installed with two wind direction adjusting plates (7,8), described wind direction adjusting plate side is a quadrangle, one side that this quadrangle is affixed on the air outlet outer wall is parallel to its opposite side, this quadrangle has an interior angle consistent with the air outlet angle, be 2 θ, the angle at the diagonal angle of this interior angle is θ.

5, the air knife of adjustable wind speed according to claim 4 is characterized in that described wind direction adjusting plate (7,8) symmetry is installed on air outlet (2) both sides.

6, the air knife of adjustable wind speed according to claim 4 is characterized in that asymmetric air outlet (2) both sides that are installed on of described wind direction adjusting plate (7,8).