DEVICE FOR DIRECTING AIR FLOW IN THE AIR DUCT

Abstract

The device to control air flow direction in the air duct according to the invention, which has an air duct and is provided with a working machine in the form of a fan or turbine, is characterized by a working machine that is located in the profiled damper (3). This is a profiled single plane rotary baffle, in which there is a central hole and two embossings forming two canopies: the suction/inlet canopy (3a) and the compression/outlet canopy (3b), arranged in such a way that they are located on opposite sides of the plane of the baffle, while the canopies (3a), (3b) have the shape of the rotary bodies with a common axis of rotation coinciding with the axis of rotation of the profiled damper (3), and are so interposed that the central hole is in the plane perpendicular to the plane of the profiled damper (3), and perpendicular to the axis of rotation of the profiled damper (3). The profiled damper (3) rotates pendulously at an angle of no more than 180 degrees, and in extreme positions, through contact of the edge (4) to the partition/sealing shelf (2), separates the upper part (1a) from the lower part (1b) of the air duct (I). With the angle of rotation of no more than 180 degrees, the position of the canopies (3a, 3b), relative to the air duct (1), changes so that the canopy that was in the upper part of the air duct is moved to its lower part and the canopy that was in the lower part of the air duct (1) is moved to its upper part.

Claims

1. The air flow control device has an an air duct and is equipped with a fan or turbine working machine, characterized by the work machine is located in the profiled damper (3), which is a profiled one-plane rotary baffle in which there is a central hole and two embossing forming two canopies: a suction/inlet canopy (3a) and a compression/outlet canopy (3b) of the profiled damper (3), so arranged that they are on opposite sides of the plane of the baffle and the canopies (3a) and (3b) have the shape of rotating figures with a common axis of rotation coinciding with the axis of rotation of the profiled damper (3) and are so interposed that the central hole is in a plane perpendicular to the plane of the profiled damper (3) and perpendicular to the axis of rotation of the profiled damper (3).

2. The device according to claim 1, characterized by the canopies: the suction/inlet canopy (3a) and the compression/outlet canopy (3b) are connected with two of symmetrical flat ribs (3d) in a such way that they form a tight diaphragm which has edges (4) which are sealed to the partition/sealing shelf (2).

3. The device according to claim 1, characterized by the profiled damper (3), is rotatable mounted in the air duct (1).

4. The device according to claim 1, characterized by the profiled damper (3), obtains the drive from the actuator (9), which is fixed to the air duct (1) by the fixed support (8).

5. The device according to claim 1, characterized by the profiled damper (3), pendulously rotates by an angle of no more than 180 degrees and in the extreme positions the profiled damper (3), through contact of the edge (4) to the partition/sealing shelf (2), separates the upper part (1a) from the lower part (1b) of the air duct (1). The position of the canopies (3a, 3b) relative to the air duct (1) changes so that the canopy that was previously in the upper part of the air duct (1) is moved to its lower part, and the canopy that was previously in the lower part of the air duct (1) is moved to its upper part.

6. The device, according to claim 1, is characterized by its being provided with a radial working machine, which is placed in the compression/outlet canopy (3b), and by the central hole being in the suction/inlet funnel (3f), which is located in a compression/outlet canopy (3b).

7. The device according to claim 6 is characterized by the radial working machine comprising a radial fan rotor (13) connected with a motor (14) which is mounted on a fixed pin (15).

8. The device according to claim 6 is characterized by the radial working machine which is comprised of a radial air turbine (5a) connected to a generator (6a) mounted on the fixed pin (15a).

9. The device according to claim 1 is characterized by being provided with an axial working machine that is arranged in the central channel (3c) in which a central hole is located; the central channel (3c) connects the suction/inlet canopy (3a) with a compression/outlet canopy (3b), and the profiled damper (3) is rotatable mounted and bearing on a stationary axis (7) attached to the air duct (1) by means of a flange sleeve (11).

10. The device according to claim 9 is characterized by the central channel (3c), which has a circular cross section with an axis coinciding with the axis of rotation of the profiled damper (3), which is also it's axis of rotation.

11. The device according to claim 9 is characterized by the axial working machine, which is comprised of an axial fan comprising a rotor (13a) and a motor (14a).

12. The device according to claim 9 is characterized by the axial working machine, which is comprised of an axial air turbine (5), which in turn is compressed of a generator (6), where the generator (6) is being mounted on the stationary axis (7) so that the generator stator, together with the axis (7), remains stationary, and the rotary winding is connected to the axial turbine rotor (5)

Description

DESCRIPTION

[0013] The subject of the invention is shown in the exemplary drawings where:

[0014] FIG. 1 shows the profiled damper for the radial fan in a vertical cross-section

[0015] FIG. 2 profiled damper for the radial fan in the A-A cross-section

[0016] FIG. 3 profiled damper for the radial fan in a horizontal cross-section

[0017] FIG. 4 profiled damper for the radial fan in the A-A cross-section

[0018] FIG. 5 profiled damper for the radial turbine in a horizontal cross-section

[0019] FIG. 6 profiled damper for the radial turbine in the A-A cross-section

[0020] FIG. 7 profiled damper for the radial turbine in a vertical cross-section

[0021] FIG. 8 profiled damper for the radial turbine in the A-A cross-section

[0022] FIG. 9 profiled damper for the axial fan in a vertical cross-section

[0023] FIG. 10 profiled damper for the axial fan in the A-A cross-section

[0024] FIG. 11 profiled damper for the axial fan in a horizontal cross-section

[0025] FIG. 12 profiled damper for the axial fan in the A-A cross-section

[0026] FIG. 13 profiled damper for the axial turbine in a horizontal cross-section

[0027] FIG. 14 profiled damper for the axial turbine in the A-A cross-section

[0028] FIG. 15 profiled damper in perspective, in the first extreme position

[0029] FIG. 16 profiled damper in perspective, in the second extreme position

[0030] FIG. 17 profiled damper with the duct, in perspective, in the first extreme position

[0031] FIG. 18 profiled damper with the channel, in perspective, in the second extreme position

AN EXAMPLE OF THE INVENTION'S EXECUTION (DESCRIPTION OF THE INVENTION)

[0032] The device to control air flow direction in the air duct according to the invention consists of an air duct 1 and a working machine arrangement placed in the profiled damper 3. The device may be equipped, depending on the version, with a working machine in the form of a radial or axial fan and a radial or axial turbine. The profiled damper 3 is a specially profiled one-plane rotary baffle in which a circular central hole is provided, as are two embosses forming canopies: a suction/inlet 3a and a compression/outlet 3b, so arranged that they are on opposite sides of the plane of the shutter. Canopies 3a and 3b have the shape of a rotary body with a common axis of rotation coinciding with the rotation axis of the profiled damper 3. The relative positioning of the canopies 3a and 3b causes the central hole is placed in a plane perpendicular to the plane of the profiled damper 3, and perpendicular to the axis of rotation of the profiled damper 3.

[0033] The profiled damper 3 obtains the drive from the actuator 9, which is fixed by the stationary support 8 to the air duct wall 1. The profiled damper 3 has the ability to shuttle rotation by an angle of no more than 180 degrees. In extreme positions, the damper 3, due tight sealing between the edges 4 and dividing/sealing shelf 2, tightly separates the upper part 1a of air duct 1 from the bottom part 1b. The profiled damper 3, with all its sealing edges 4, comes into contact with the sealing of the dividing-sealing shelf 2, made inside the air duct 1.

[0034] The profiled damper 3, driven by the actuator 9, can rotate by an angle of no more than 180 degrees. During such rotations the position of the canopy 3a and 3b relative to the air duct 1 changes, so that the canopy that is in the upper part of the air duct 1 moves to its lower part, and the canopy that is in the lower part of the air duct 1 moves to its upper part. The rotation takes place in the shortest possible time, during which the system is not airtight and the air streams can mix.

[0035] The device according to the invention can be made in two variants. The first version is a device with a radial working machine shown on FIG. 1 to FIG. 8. In the second variant, there is an apparatus with an axial working machine, shown on FIG. 9 to FIG. 14.

[0036] In the first variant, a radial fan or radial turbine was used as a working machine. The radial machine is placed in the compression/outlet canopy 3b and the central hole is placed in the suction port 3f, located in the compression/outlet canopy 3b. The device in the first version is used to reverse the direction of the air flow in the air duct 1, which is driven by a radial fan comprising of a rotor 13 and a motor 14 as shown in FIGS. 1 to 4, or to direct air coming from different directions into the air duct 1 on to the proper side of the radial turbine 5a including the generator 6a as shown in FIGS. 5 to 8. The single-leaf pivoting damper 3 in this version has a special shape consisting of: a suction/inlet canopy 3a, a compressing/outlet canopy 3b, and a central hole with a suction hopper 3f. Two symmetrical flat ribs connect the suction/inlet canopy 3a and the compressing/outlet canopy 3b forming a tight diaphragm which has sealing edges 4, and which are tightly attached to the partition-sealing shelf 2. The profiled damper 3 has the ability to rotate pendulously at an angle of no more than 180 degrees. In extreme positions, the profiled damper 3, by attaching the edges 4 to the partition-sealing shelf 2, tightly separates the upper part 1a from the bottom part 1b of the air duct 1. The profiled damper 3 is rotatable mounted in the air duct 1, either on the fixed shaft 15, holding the radial fan motor 14, or on the fixed shaft 15a, holding the radial turbine generator 6a, as well as on the hollow connector 3e mounted in the air duct 1. The actuator 9 driving the profiled damper is attached via the fixed support 8 to the air duct housing 1.

[0037] In the second variant of the device an axial working machine is used in the form of an axial fan or an axial turbine. The axial machine is located in the channel 3c, in which the central hole is also positioned. The axial working machine sucks inin the case of a fanor lets inin the case of the turbinethe air from the sucking/inlet canopy 3a, causing the air to flow through the passage 3c to the compression/outlet canopy 3b. The device in the second version is used to reverse the direction of airflow in the air duct 1 by means of an axial fan that has a rotor 13a and a motor 14a (FIG. 9 to FIG. 12), or to direct the air coming from different directions into the air duct 1 to the proper side of the axial turbine 5, which has a generator 6 and is driven by air flowing through the air duct 1.

[0038] The single leaf profiled damper 3 has a structure consisting of a channel 3c connecting the sucking/inlet canopy 3a to the compression/outlet canopy 3b, and two symmetrical flat-shaped ribs 3d. Canopies 3a and 3b are located symmetrically, relative to the center of the damper 3. Channel 3c has a circular section with an axis that coincides with the axis of symmetry of the profiled damper 3, and this is its axis of rotation. The 3d ribs connect the sucking/inlet canopy 3a to the compression/outlet canopy 3b and the channel 3c, forming a sealing diaphragm with edges 4 which are tightly attached to the partition/sealing shelf 2.

[0039] The profiled damper 3 is rotatable and is mounted on a stationary axis 7 attached to the air duct 1 by means of a flange sleeve 11. The damper 3 has the ability to rotate pendulously at an angle of no more than 180 degrees. In extreme positions, the damper 3, due tight sealing between the edges 4 and the partition/sealing shelf 2, tightly separates the upper part 1a of air duct 1 from the bottom part 1b.

[0040] The generator 6 is mounted on the fixed axis 7 so that the generator stator 6 and the stationary axis 7 both remain motionless, and the generator's winding is connected to the axial turbine rotor 5. The actuator 9 of the rotary damper 3 is mounted on the fixed axis 7 to the air duct housing 1 by the fixed support 8 and the hollow connector 3e. The actuator shaft 9 is connected to the rotary damper 3.

[0041] The operation of the device with the rotary damper according to the invention is as follows: the profiled damper system in all versions is based on separating the air duct 1 into two parts by tight seals, the upper 1a and the lower 1b, which are exposed to different air pressures.

[0042] In the first version the only way for the air to flow through the sealed air duct 1 is through a central opening located in the suction-inlet hopper 3f located in the compression/outlet canopy 3b, in which the radial working machinea radial (centrifugal) fan or a radial turbineis mounted. In the second variant, the only way for the air to flow through the sealed air duct 1 is through a central channel 3c in which an axial working machineaxial fan or axial-flow turbine machineis arranged.

[0043] The cyclical rotation of the profiled damper 3 at an angle of no more than 180 degrees results in a temporary unsealing of the system comprised of the profiled damper 3 in an air duct 1. After the profiled damper 3 is placed in the next extreme position: [0044] in the case of using the fan, the reversal of direction in airflow in the air duct 1 occurs, while the radial fan 13 or the axial fan 13a rotor continuously rotates in one fixed direction. This is the typical use for ventilation or heat recovery systems using stationary heat exchangers [0045] in the case of using a turbine, there is a constant flow of compressed air to the turbine rotor, despite the fact that the air in the air channel 1 changes its flow direction cyclically.