JPS61265440A - Flow direction control device - Google Patents

Abstract

PURPOSE:To permit direction control in a comparatively wide area condition by a method wherein third flow, flowing into almost the center of two flows passing through a nozzle orthogonally substantially, is introduced in a petroleum fan heater or the like. CONSTITUTION:A flow, flowing into an inlet port 2, is branched into the flows A, B by branching section 7 and is controlled by control panels 16, 17 so as to flow outward directions, then, the flows are deflected by guide walls 20, 21 and are blown off. On the other hand, the third flow C passes through a flow path 23 and is blown off downwardly as the flow C'. In this case, the flow C' begins to join with the flows A, B by diffusion and the joining is more promoted after arriving at a lower surface 6 whereby dispersing blow-off in a condition that both ends of the flow are deflected into wide angle, is effected between the guide walls 20, 21. Thus, more effective air-conditioning effect may be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The flow direction control device of the present invention is used at the outlet of oil fan heaters, space heaters, air conditioners, and the like.

Conventional technology Conventionally, as a device for controlling the direction of two incoming flows,
The one shown in Japanese Patent Application Laid-Open No. 57-166441 is known. In this configuration, the flow flowing in from the upstream is divided into two, and the flow direction is controlled by operating a wind direction guide plate arranged at each nozzle.

Problems to be Solved by the Invention However, in this method, the flow is deflected in the form of a beam, so the directionality is strong, and there is a drawback that only a blowout flow can be obtained in a spot-like area.

The present invention is intended to solve this problem, and aims to realize deflection in a state where the blowing width is expanded and blowing over the entire blowing width.

Means for Solving the Problems In order to solve the above-mentioned problems, the flow direction control device of the present invention provides, in addition to the two flows passing through the nozzle, a flow direction control device that directs the two flows approximately at the center of these two flows. It has a configuration that introduces a third flow that flows in from a right angle direction.

Function: With the above-described configuration, the present invention generates a flow between the two flows when deflecting them, so it is possible to achieve deflection with the blowout width expanded and blowout over the entire blowout width.

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.

In FIGS. 1 to 6, 1 is a flow direction control device. Reference numeral 2 denotes an entrance section, which is divided by side plates 3, 4, an upper surface 5, and a lower surface 6. The inlet section 2 is divided by a branch section 7 into two regions 8 and 9. 1o and 11 are nozzle forming portions protruding from the side plates 3 and 4, respectively, and the nozzle forming portions 12.13 protruding from the branch portion 7 on both sides constitute a nozzle portion 14.15. 16.17 is a control plate provided near the nozzle part 14.15, and the axis I
It is configured to be rotatable around El, 19. 2
0.21 is a curved guide wall provided on the downstream side of the nozzle forming portion 10.11, and these form an outlet portion 22 that gradually expands toward the downstream.

2a is a flow path for introducing the third flow, 24 is its inlet end, and 25 is its outlet end. The outlet end 25 has two flow nozzle sections 14 and 16 on the top surface 6 of the device 1.
The third flow is formed near the center of the nozzle part 14.
and 16 are arranged to produce an inflow from a direction substantially perpendicular to the flow.

Next, the operation will be explained.

FIG. 3 shows the control plates 16 and 17 facing outward. The flow flowing into the inlet section 2 is divided into flows A and B by the branching section 7. Streams A and B are directed outwards by control plates 16 and 17, respectively, and after adhering to guide walls 20 and 21 are deflected as streams AI and Bi. On the other hand, the third flow C passes through the flow path 23 and is blown out downward from the outlet end 25 as a flow C. At this time, this flow C1 starts to merge with the flows AI and Bl due to its diffusion, and after reaching the lower surface 6, the flow C1 due to collision diffusion.
The resulting flow becomes one flow, further promoting the merging with the flows AI and Bl, and achieves dispersed blowing over the entire guide wall 20 to 21 with both ends deflected at a wide angle.

Next, consider the case where the control plates 16 and 17 are tilted to the right as shown in FIG. At this time, the flow B adheres to the guide wall 21 and blows out as a flow B1 that is deflected at a wide angle to the right.

On the other hand, the flow A is blown out as a flow deflected to the right by the control plate 16. Since the third flow C1 tries to merge with the flow B1, it diffuses on the right side, and prevents the flow A1 from deflecting to the right, making the flow A1 almost straight forward. As a result, the overall flow at the outlet can be blown in a wide range of flow states, including a wide angle deflection on the right side and a nearly straight flow state on the left side.

FIG. S shows the case where the control plates 16 and 17 are not tilted.

Since both flows A and B flow in the straight direction, the straight flow C1
Combined with this, the overall flow AI is almost straight forward.
, Bl, cl are generated. FIGS. 4 to S Furthermore, deflection in a direction symmetrical to that in FIG. 4 is also possible in the same manner as in FIG. 4, and as a whole, it becomes possible to deflect a wide flow over a wide angle.

Next, as shown in FIG. 6, the control plates 16 and 17 are turned inward. At this time, since the flows Al and Bi restrict the flow C1 from the sides, it is possible to realize a concentrated flow as a whole.

Next, another embodiment of the present invention is shown in FIG. In this embodiment, the upper surface 5 of the first embodiment is removed, and a part of the flow at the inlet portion 2 is used as the third flow C. In this case, the operation is substantially the same as in the first embodiment.

Further, a third embodiment of the present invention is shown in FIG.

This is similar to the second embodiment in which the branch portion 7 is formed of a cylinder. In this case, in the state shown in FIG. 9, the flow caused by the control plate 16 directed inward tends to adhere to the cylinder wall surface, and the flow on the left side is deflected more to the right than in the case of FIG. It is something that will be realized.

Effects of the Invention As shown above, in the present invention, in addition to the two flows passing through the nozzle, a third flow is introduced approximately at the center of these two flows, flowing in a direction approximately perpendicular to these two flows. Because of this configuration, the following effects occur.

(1) Wide-angle deflection can be achieved in relatively wide flow conditions.

(2) A diffused blowout that spreads over a wide angle over the width of the blowout nozzle becomes possible.

By applying such a flow direction control device to the outlet of a fan heater, etc., it is possible to realize direction control in a state where the heating area is a relatively wide area instead of the conventional small area. This makes it possible to achieve more effective air conditioning effects.

Furthermore, in the present invention, by separating the third flow from a part of the other flows, a simpler configuration can be achieved, and by configuring the branch part with a cylinder, the downstream surface of the cylinder can be Utilizing the adhesion effect, it is also possible to blow air in a slightly concentrated manner.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of a flow direction control device showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Figs.
Figure 6 is B-B showing different flow states in Figure 2.
7 is a partially cutaway perspective view showing a second embodiment of the present invention, FIG. 8 is a partially cutaway perspective view showing a third embodiment of the present invention, and FIG. 9 is a partially cutaway perspective view showing a third embodiment of the present invention. FIG. 1...Flow direction control device, 2...Inlet section, 7...Branch section, 16.17...Control board, IEI, 19... ...Axis, 20.21...
... Guide wall, 22 ... Exit section, 23 ...
...Flow path. Figure 2 Figure 3 Figure 4 Figure 5 At Cr Bt Figure 6 Figure 7 Figure 8 Figure 9

Claims (3)

[Claims] (1) It has an inlet portion into which the flow flows and an outlet portion formed by a pair of guide walls that gradually expand toward the downstream;
A branching part that divides the flow into a first flow and a second flow is disposed at the inlet part, and a control plate rotatable about an axis is disposed in each of the two divided flows. A flow path is formed in the vicinity of the center of the split flow to introduce a third flow flowing from a direction substantially perpendicular to the flow, and the control plate rotates to prevent the divided flow from adhering to the guide wall. A flow direction control device positioned to control the operation and produce a deflection of the total flow to one side, a wide-angle distribution over the entire width of the outlet, and a concentrated outlet in the center. (2) The flow direction control device according to claim 1, wherein the third flow is formed by a bypass flow from the branch section. (3) The flow direction control device according to claim 2, wherein the branch portion is formed of a cylindrical member.