FR2693239A1 - Device for the production and storage of compressed air. - Google Patents

Abstract

Apparatus for producing and storing compressed air, comprising a compressor set producing compressed air, connected to a storage tank (reservoir), characterised in that the compressor unit is located under the storage tank.

Description

COMPRESSED AIR PRODUCTION AND STORAGE DEVICE

  The present invention relates to a device intended for producing and storing compressed air. It relates more particularly to an improvement for this type of device. Compressed air is used more and more in modern industry, and compressors allowing air compression have been known for a long time. Thus, there are already different types of compressors producing compressed air which is then stored in a tank, at the desired pressure to be then used according to needs The most used compressors are of the piston type with one or more stages and in which the movement of a piston in a cylinder ensures the suction of air to atmospheric pressure to compress it and then discharge it into the storage tank to which the usage network is connected. This type of arrangement is widely used but has a certain number of drawbacks. One will note among these, the noise which is excessive and very painful for users located nearby, their footprint too large when we know the current costs that met office square res

  or workshop, and not to mention their lack of aesthetics.

  The present invention therefore seeks to solve the drawbacks mentioned above and proposes a device for producing and storing compressed air according to the invention and comprising a compression assembly producing compressed air connected to a storage tank which is characterized in that that the compression set is

  arranged below the storage tank.

  According to a preferred arrangement, the reservoir is of general shape

  cylindrical with a vertical axis of symmetry.

  According to an additional characteristic, the compression assembly and the storage tank are housed in a vertical box, said compression assembly being arranged in the lower part of the box. Said box comprising a support structure consisting of an assembly of profiles, covered with at least partially of cladding walls, the compression assembly and the

  storage located inside said box.

  According to a preferred arrangement, at least one of the walls

covering is mobile or removable.

  According to an improvement, the box comprises a lower suction grid arranged in the lower part at the level of the compression assembly and comprises an upper orifice of

  ventilation arranged in the upper part, or even at the top.

  Other characteristics and advantages of the invention will emerge

  of the description which will follow with regard to the appended drawings which are not

  given only by way of nonlimiting examples.

  Figures 1 to 4 illustrate an embodiment of the invention, the covering of the assembly having been removed, for a better understanding.

  Figure 1 is a front side view.

  FIG. 2 is a view along F 2 of FIG. 1.

  FIG. 3 is a view along F 3 of FIG. 2.

  Figure 4 is a perspective view.

  Figure 5 is an interior perspective view of this mode of

realization with its dressing.

  Figure 6 is a partial view of a variant.

  Figure 7 is a partial view illustrating a detail of a

improvement.

  Figures 8 and 9 illustrate alternative embodiments, Figure 8 being a view similar to Figure 6, while Figure 9 is a view in

  perspective similar to Figure 5.

  The installation according to the invention comprises a compression assembly (1) producing compressed air and a reservoir (2) intended to

  store the compressed air thus produced.

  In a manner known per se, the compression assembly (1) consists of a compressor (3) actuated by a motor (4) Said compressor being for example of the piston type with one or more stages, or even of the screw type , and the motor being an electric motor Of course, the compressor could be of any other type and so are

  even for the engine which could as well be a heat engine.

  According to the illustrated embodiment, said motor is independent and drives the compressor thanks to a system of the belt and pulley type. Thus the output shaft (5) of the motor (4) comprises a driving pulley (6) which, thanks to a trapezoidal belt (7), rotates the receiving pulley (8) of the compressor (3) Each of the two

  pulleys of course comprising a retaining groove for the belt.

  The receiving pulley (8) being of larger diameter than the pulley

  drive (6), and being attached to the end of the compressor crankshaft (3).

  Note also that said receiving pulley (8) comprises radial blades (9) ensuring the ventilation of the cylinder (10) and the cylinder head (11) of the compressor (3), advantageously provided with cooling fins

  thus improving heat exchange.

  Furthermore, the compression block comprises a suction orifice (12) through which fresh air is admitted at atmospheric pressure and a discharge orifice (13) through which the compressed air is discharged The two orifices being so known per se, connected to the compression cylinder which comprises a set of valves allowing the various stages of compression admission and discharge. Furthermore, the suction is provided with a filter and a

silent (14).

  According to the invention, the compressed air tank (2) is arranged above

  above the compression assembly (1) The reservoir (2) of compressed air is, for example, cylindrical and of axis of general symmetry (XX ') It consists of a cylindrical peripheral wall (15) and is closed to t

  two ends by two end walls (16, 17) of convex shape.

  According to the invention, the reservoir is arranged above the assembly of

  compression and vertically, its axis of symmetry (XX ') being vertical.

  Furthermore, its lower end wall (16) comprises at its lowest point, a drain (18) allowing the evacuation of the condensation water which may form in the enclosure of the tank, while its peripheral wall (15) comprises intake means (19), exhaust means (20) and piloting means (21), as well as a control pressure gauge (210) The intake means (19) are connected to the discharge orifice (13) of the compressor proper by means of an intake pipe (22) and include a non-return valve (not shown), while the exhaust means comprise a valve (23) and connection means (24) intended to be

  connected to the usage network.

  The control means (21) constituted by a pressure switch are connected to the electrical power supply network and comprise at least one membrane sensor defining a maximum pressure threshold and a minimum pressure threshold, thus determining the stopping of the engine. when the maximum determined pressure is reached, triggering the starting of the engine when the pressure in the tank is equal to the predetermined minimum threshold For this purpose, an electrical connection cable (25) is provided between the engine (4) and said pressure switch (21) In addition, there is an annex pipe (26) connecting the pressure switch (21) to the intake means (19), intended to empty its compressed air, the cylinder and the intake pipe, in order to allow a

better compressor start-up.

  Furthermore, the compression assembly (1) and the storage tank (2) are housed in a box (50) constituted by a support structure (30) of rectangular shape of rectangular section and extending upward and of which the height "H" is greater than the dimensions "11, 12" of the base lying on the ground. For example, the height "H 'can be between 1 and 2.5 meters, while the widths "11, 12" can be between 40 centimeters and one meter Said support structure (30) consisting of a set of tubular profiles, for example of square section and comprising a lower frame (31) connected to an upper frame (32) by four angle profiles (33 a, 33 b, 33 c, 33 d) vertical Said lower frame (31) supporting the compression assembly (1), while the storage tank (2) is supported by a support intermediate (34) consisting of two parallel grab bars (35, 36) retained by their ends by two lateral bars (37, 38) Said structure (30) can be covered at least partially by a set of external walls (39, 40, 41, 42) constituted by sheets of steel sheet or of aluminum, or even of composite material Said walls being lateral and peripherally surrounding the installation to form an internal enclosure (45), one of the lateral walls being able to be movable or removable and for example pivoting to constitute an access door II it goes without saying that several of the walls, or even all of them, could be removable. Furthermore, a lower grid (43) is provided located at the level of the compression assembly (1) on the side of the ventilation blades (9), and an exhaust orifice (440) comprising an upper grid (44) disposed at the upper frame (32) The ventilation of the enclosure can be increased by means of an additional additional fan laughing (46) as shown in Figure 6 It goes without saying that to improve sound insulation, the covering walls (39, 40, 41, 42) can be coated internally with an insulating layer (47 ), as shown in FIG. 7, which can be a layer of foam, for example made of polystyrene or polyurethane, or any other suitable material It goes without saying that the compression assembly could be of the type whose engine is integrated to the compressor Similarly, the tank could have any

  other form, without departing from the scope of the invention.

  FIG. 8 illustrates a variant according to which the ventilation outlet (440) constituted by a grid is arranged not on the

  top of the box (50), but laterally at the top.

  FIG. 9 represents a device according to the invention comprising means making it possible to move it conveniently For this purpose, the box (50) comprises two rollers (61, 62) and two handles of

grip (63, 64).

  Of course, the invention is not limited to the embodiments described and shown by way of examples, but it includes

  also all technical equivalents and their combinations.

Claims (7)

  1 Compressed air production and storage device comprising a compression assembly (1) producing compressed air connected to a storage tank (2), characterized in that the compression assembly (1) is disposed at the - below the tank storage (2).   2 device for producing and storing compressed air according to claim 1, characterized in that the tank is of general shape   cylindrical with an axis of symmetry (XX ') and in that said axis is vertical.   3 A device for producing and storing compressed air according to claim 1 or 2, characterized in that the compression assembly (1) and the storage tank (2) are housed in a vertical box (50), said assembly being placed in the lower part of the box.   4 A device for producing and storing compressed air according to claim 3, characterized in that the box (50) comprises a support structure (30) consisting of an assembly of profiles, at least partially covered with covering walls ( 39, 40, 41, 42), the 2 O compression assembly (1) and the storage tank (2) located inside of said box.   Compressed air production and storage device according to claim 4, characterized in that at least one of the walls   covering (39, 40, 41, 42) is removable.   6 A device for producing and storing compressed air according to claim 4 or 5, characterized in that the box (50) comprises a lower suction grid (43) disposed in the lower part at the level of the compression assembly (1).   7 Device for producing and storing compressed air according to   any one of the preceding claims, characterized in that the   box (50) includes an upper ventilation opening (440) arranged in the upper part.   8 A device for producing and storing compressed air according to claim 7, characterized in that the upper orifice (440) comprises a grid (44).