JPH035657A - Device for switching air current - Google Patents

Abstract

PURPOSE:To enable effecting continuous operation without closing an entry port for pressurized air and a suction port and enable switching the passages for air speedily, smoothly, and surely without causing trouble to an incidental equipment by providing two ports for switching passages connecting a main duct and a discharge duct and by providing inside a cylindrical housing a vane which opens and closes the ports by turning and sliding against them. CONSTITUTION:When one end 14 of a vane 13 is brought to a port 5 by a control lever provided outside a housing 1, the port 5 is closed so that the main duct is shut off. The air drawn into the housing 1 under pressure is sucked by an air suction port 8 through an auxiliary port 6 so that the entry of air under pressure and is suction are not suspended. When, next, the end 14 is brought between the port 5 and the air suction port 8 by the control lever, the port 5 is connected to a pressurized air-entry port 7, so that the pressurized air is sent into the main duct through the port 5. When the end 14 is further made to pass the port 5 and brought between the port 5 and and pressurized air-entry port 7 by the control lever, the port 5 is connected to the air suction port 8, so that air is sucked from the main duct through the port 5 and discharged.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an air flow conversion device. More specifically, the present invention relates to an airflow conversion device using rotatable blade members.

(Prior art, problems to be solved by the invention) Conventionally,
To change the direction of air flow in a duct through which air flows, a combination of multiple valve devices and multiple air ducts is used, and when the air duct combined with one valve device is released, the air duct combined with one valve device is released. The valve device and the air duct combined with the valve device are released, and when both valve devices are released, the valve device and the air duct combined with the valve device are released. Either a combination of these was used to convert the airflow of the existing equipment, or a three-way valve was used to convert the air intake and exhaust.

The former method uses multiple valve devices and air ducts.
Although the operation is reliable, the device is complicated and oversized, and an expensive control device is also required to synchronize multiple valve devices.The latter device using a three-way valve has a simple structure, but There has never been a method that can be applied to high-pressure or large-diameter ducts, and the operation is discontinuous, requiring interruptions of operations such as press-in and discharge.

Unlike small-diameter distribution ducts for liquids or gases, in which three-way valves have conventionally been used, in large-diameter, large-capacity ducts, it is difficult to install the expensive switching devices described above, and three-way valves are difficult to install. It has long been desired to develop an air flow conversion device that is simple, reliable, and compact in operation, such as a valve, and that can be performed without interrupting auxiliary devices for air injection and suction.

The inventor of the present application took these points into consideration and, as a result of various thoughts and studies, completed the following invention.

(Means for solving the problem) For this reason, (1) Concentrate the air flow path at the switching device. ■Switching by a single means (e.g. valve or vane)
It can be implemented by ■The auxiliary device for air injection and suction does not have to be stopped every time the air flow is changed.■It is possible to switch between air injection and exhaust in a short time. ■Make the airflow channel (duct) as large as possible to maintain the flow rate and avoid concentration of pressure. ■Make switching operations as reliable as possible. The goal was to

For this purpose, the connecting part of the duct is maintained at a large diameter, and the opening that exclusively presses in or sucks the flow of the fluid passing through is connected to the main duct and the exhaust duct, one end of which is connected to a device or a device, etc. A cylindrical housing containing two openings for changing the direction of the passage, these openings being connected to a cylindrical housing containing a blade member that can be rotatably and slidably opened and opened, and a press-fitting or suction opening. It is possible to continue pressuring fluid into the main duct or suctioning fluid from this duct without stopping the flow of fluid as much as possible. Furthermore, the present invention has been completed by allowing the main duct to be opened or closed, if necessary, without stopping the operation of the one opening for press-fitting or suction.

EMBODIMENT OF THE INVENTION Hereinafter, one embodiment of an air flow conversion device based on the present invention will be described in detail with reference to the accompanying drawings.

(Embodiment) As shown in FIG. 1, the housing 1 includes a cylindrical portion 2 and a flat ff[3,
4, and a blade member 13 which is rotatably and slidably movable within the cylindrical portion 2 and has a sliding surface 15 attached to one end 14 and a rotary shaft 16 rotatably supported. include.

This cylindrical part 2 has an opening 5 leading to a duct 9 from the main equipment (not shown), such as a reactor, processing equipment, etc., and the side plate 3.4 has an opening 7 leading to a press-fit duct 11,
Opening 8 leading to suction duct 12 and auxiliary duct 10
It has an opening 6 leading to. Also, this side plate 3.4
supports a rotary shaft 16 of the blade member 13 rotatably at its center, and one end of this rotary shaft 16 passes through the side plate 3 or 4 and connects or engages with an operating lever outside the housing. has been done.

As shown in FIG. 2, the blade member 13 has a plane parallel to the rotating shaft 16, and one end 14 thereof is slidably joined to the inner surface of the cylindrical portion 2 of the housing 1, and is connected to the main equipment. The opening ig5 leading to the main duct 9 from the main duct 9 is slidably rotated to open and close (Fig. 3A).

B and C), and the other end of this vane member 13 is slidable on the inner surface of the cylindrical portion 2 of the housing 1, and the both ends are slidable on the inner surface of the corresponding flat side plate 3.4 of the housing 1. The housing 1 is joined to prevent fluid such as air passing through the housing 1 from leaking from the joint.

The lower air pressure inlet and the air suction port 8 are located on the side plate 3, but they may be located on the same side plate 30, different side plates 4L, or one or both of them may be on the cylindrical part 2. Well (see Figure 4), the opening 5 leading to the main duct 9
and the pivot shaft 16, and must be positioned opposite to each other (see FIGS. 3 and 4).

Further, the auxiliary opening 6 is also located on the side plate 3 like the press-fit lower and the suction port 8, but it may also be located on the other side plate 4 and on the cylindrical portion 2 (see FIG. 4). must be located at a position opposite to the opening 5 leading to the main duct 9 marked IIq, which substantially intersects the line connecting the air pressure intake lower and the air intake port 8 (see FIGS. 3 and 4).

<Operation> In the device of the present invention, the air-pressing lower part always pumps air, and the air suction port 8 always sucks air.

When the operating lever on the outside of the housing 1 is operated to position one end 14 of the blade member 13 in the opening 5, the opening 5 is closed and the main duct is closed (see FIG. 3A). At this time, the air press-fitted into the housing 1 is suctioned by the air suction port 8 through the auxiliary opening 6, and the air press-fitting and suction operations are not stopped.

Next, when the operating lever is operated and the one end 14 is positioned between the opening 5 and the air suction port 8, the opening 5 and the air pressure lower part communicate with each other, and air flows through the opening 5 into the main duct. It is press-fitted (see Figure 3B).

Furthermore, when the operating lever is operated to position the one end 14 through the opening 5 and between the opening 5 and the air pressure fitting lower, the opening 5 communicates with the air suction port 8, and the opening 5 communicates with the air intake port 8. Air is drawn in and exhausted from the main duct.

<Effect> All of these operations can be operated manually or automatically, and continuously or discontinuously, by operating the control lever, but the air pressure inlet and suction port are not closed. It continues to operate continuously, does not put an undue burden on the accompanying equipment and connected ducts, and can perform quick, simple, reliable, and smooth switching operations.

[Brief explanation of the drawing]

FIG. 1 is a partial Fgr perspective view of the airflow conversion device according to the present invention. FIG. 2 is a perspective view of a vane member of an airflow conversion device according to the present invention. FIG. 3A shows an opening 5 through which the vane member communicates with the main duct.
It is a schematic diagram showing where... is being distributed. FIG. 3B is a diagram showing the vane member located between the opening 5 and the air suction port 8, and air being press-fitted into the main duct. FIG. 3C is a diagram showing a state where the vane member vq is located between the opening 5 and the air pressure fitting lower, and air is sucked in and discharged from the main duct. FIG. 4 is a partially sectional perspective view of another embodiment of an airflow conversion device according to the present invention. In the accompanying drawings, l...Housing, 2...Cylindrical part, 3.4
... Side plate, 6... Auxiliary opening, 8... Air suction port, 10... Auxiliary duct, 1 12... Suction duct, 1 14... One end of the blade member, 15... Sliding surface, 1 7... Pneumatic inlet, 9... Main duct, l... Press-fit duct, 3... Vane member, 6... Rotating shaft.

Claims (2)

[Claims] (1) An air pressure inlet and an air suction port arranged at positions opposite to each other in the diametrical direction, and an air pressure inlet and an air suction port arranged to face each other in the diametrical direction at a position perpendicular to the line connecting these air pressure inlets and the air suction port. a cylindrical main body having a plurality of openings; a cylindrical main body rotatably mounted in the main body; one end slidably opening and closing one of the openings; and an arcuate inner surface of the cylindrical main body; a blade member having a sliding surface, the other end and both ends of which are slidably joined to the arc-shaped inner surface and flat side surface of the inner surface of the main body; and a rotation shaft for rotating the blade member within a limited range by a reciprocating drive shaft, and the blade member further includes an air press-in position, an air suction position, and an air flow stop position. Features an airflow conversion device. (2) The airflow conversion device according to claim 1, wherein the air pressure insertion position of the blade member is located between the air suction port and an opening through which the blade member opens and closes. (3) In the device according to claim 1 or 2, the air flow is characterized in that the air suction position of the blade member is located between the air pressure inlet and the opening that the blade member opens and closes. conversion device.