air conditioning

Abstract

Air conditioning system comprising an air inlet (3), fans (10), a plurality of air outlets (4, 5) and a control unit, characterized in that - it comprises a first and a second module (1, 2), wherein the air inlet (3) is common to the first and the second module (1, 2), and wherein the first module (1) comprises a plurality of first air outlets (4) and the second module (2) comprises a plurality of second air outlets (5), and wherein - the control unit determines the air discharge only through the first outlets (4), only through the second outlets (5) or simultaneously through the first and second outlets (4, 5).

Description

Field of the invention

[0001] The present invention relates to an air conditioning system, in particular for indoor air conditioning. Background of the invention

[0002] Air conditioning large spaces still poses a problem today when it comes to ensuring the thermal comfort of the occupants.

[0003] It is known that displacement diffusion systems have their limitations in high-temperature environments, and these displacement diffusion systems can be combined with other mixed diffusion systems, such as long-throw nozzles, to support the first system when it is insufficient.

[0004] These systems are air diffusion solutions that must be part of an air conditioning system that ducts the treated air generated in a ventilation unit to the diffusers. This is known as central air-to-air air conditioning.

[0005] There are innovations that focus on solving or improving the diffusion problem, such as that described in EP1318360A2, but they do not concern air conditioning, only diffusion.

[0006] On the other hand, there are air-water systems in which devices such as fan coil units with a fan and an air exchanger treat the air in the room in which they are installed by forced air circulation via the fan exchanger.

[0007] These units have lower operating costs because they move water instead of air, which has a higher specific heat and can deliver the same amount of energy with a smaller fluid volume. These fan coil units are typically connected to a single air distribution system. Description of the invention

[0008] An object of the present invention is therefore to provide an air conditioning device, in particular for the treatment of indoor air, which allows the treatment of large spaces, being located directly in the area to be treated and allowing the air conditioning of both the space immediately adjacent to the device and the areas distant from it.

[0009] The air conditioning system according to the invention solves the aforementioned disadvantages and achieves further advantages which are described below.

[0010] The air conditioner according to the present invention is described in claim 1, and the dependent claims comprise additional features which are optional.

[0011] The air conditioning system comprises, in particular, a first and a second module, each comprising a common air inlet, a filter, fans, two silencers, a heat exchanger coil or a heat exchanger with a condensate tray, and air outlets. It also includes a controller and temperature and pressure sensors or probes required for independent control of the flow temperature at each of the outlets.

[0012] It allows air supply only through the first outlets, only through the second outlets, or through the first and second outlets simultaneously.

[0013] The result is an air conditioner, especially for large indoor spaces, that is very versatile as it can operate in three different modes depending on your needs.

[0014] Preferably, the first outlets are located in a lower part of the air conditioner and the second outlets are located in an upper part of the air conditioner.

[0015] In addition, the air inlet is preferably located in an upper area of ​​the air conditioning system.

[0016] In a preferred embodiment, the first air outlets form an arc of 180° and the second air outlets form an arc between 225° and 360°, but may form any suitable arc.

[0017] Preferably, the first air outlets are displacement outlets and the second air outlets are long-throw nozzles.

[0018] Furthermore, each of the first and second modules preferably comprises a silencer, a heat exchanger, an intake temperature sensor and a supply temperature sensor, and a pressure switch on the intake filter common to the first and second modules.

[0019] The air conditioning system preferably also includes a common filter for the first and second modules.

[0020] The air conditioning system according to the invention achieves, among other things, the following advantages: - It provides two different diffusion systems; - It combines a displacement diffusion system with a long-throw nozzle diffusion system and high induction; - It can be placed directly in the occupied area, reducing the distances to be covered by the outlets and the ranges to be covered by the diffusers, thus making air conditioning more efficient. Short description of the drawings

[0021] To facilitate understanding of the above explanations, some drawings are attached in which a practical embodiment is shown schematically and only as a non-limiting example. Fig. 1 is a perspective view of the air conditioner according to the invention, with arrows indicating the air inlet and outlet; Fig. 2 is a plan view of the air conditioner according to the invention with arrows indicating the air inlet and outlet in the diffusion mode by displacement; Fig. 3 is a plan view of the air conditioning system according to the invention, with arrows indicating the air inlet and outlet in the mixed diffusion mode; and Fig. 4 is a plan view of the air conditioning system according to the invention, with arrows indicating the air inlet and outlet in the combined diffusion mode. Description of a preferred embodiment

[0022] Fig. 1 shows an air conditioning system according to the invention, consisting of a first and a second module 1, 2, which are arranged next to each other.

[0023] The air conditioning system comprises an air inlet 3 common to the first and second modules 1, 2, and the first module 1 comprises a plurality of first air outlets 4 and the second module 2 comprises a plurality of second air outlets 5.

[0024] The air inlet 3 is located in an upper area of ​​the air conditioning system. The first air outlets 4 are positioned lower than the second air outlets 5, as can be seen in the figures.

[0025] In a preferred embodiment, the first air outlets 4 are openings or displacement outlets and define an arc of 180°, while the second air outlets 5 are nozzles and define an arc between 225° and 360°, depending on their installation location.

[0026] The first outlets, which perform displacement diffusion, directly treat the occupied space near the floor, and the second outlets, which in the preferred design are long-throw nozzles, treat higher zones, thus avoiding temperature stratification and achieving effective mixing of the supply air with the ambient air of the occupied area.

[0027] Furthermore, the device according to the invention comprises an intake silencer 6 and an outlet silencer 7, which dampen the noise of the air entering and moving in the device.

[0028] The device according to the invention also comprises heat exchangers 8, suction temperature sensors and flow temperature sensors.

[0029] In addition, the air conditioning system comprises a filter 9, which is common to the first and second modules 1, 2, and fans 10.

[0030] The Fig. 2 - 4 show the three operating modes of the air conditioning system according to the invention, which are determined by a control unit.

[0031] Fig. Figure 2 shows in particular the operation of the device in which the air exits only through the first outlets 4, ie in a displacement diffusion mode, Fig. Figure 3 shows the operation of the device in which the air exits only through the second outlets 5, ie in a mixed diffusion mode, and Fig. Figure 4 shows the operation of the device in which the air exits simultaneously through the first and second outlets 4, 5, ie in a combined mode.

[0032] During operation, air is drawn in through the filter 9 located at the top of the device. The air flows through the intake silencers 6, which dampen the noise transmitted by the intake, through the fans 10, through the exhaust silencers 7, and to the heat exchangers 8, which distribute the air to the first air outlets 4, the second air outlets 5, or both.

[0033] It should be noted that the enclosures enclose the units and connect the air outlets of the indoor modules to the air outlets, creating two separate plenums or compartments. The plenum or compartment corresponding to the displacement diffusion is located in the lower section of one enclosure, while the plenum or compartment corresponding to the jet diffusion is located in the lower section of the other enclosure and in the upper section of both enclosures.

[0034] The two air conditioning modules 1 and 2 are controlled independently. The intake temperature sensor measures the air temperature, which is compared to a setpoint to regulate the valve position and fan speed. The supply temperature sensor is used to regulate the supply temperature. Once the setpoint temperature is reached, a controller closes a water inlet valve.

[0035] For maintenance purposes, the filter zone may also contain a pressure switch that emits an alarm signal for dirty filters.

[0036] Although reference has been made to a specific embodiment of the invention, it is obvious to a person skilled in the art that the air conditioning device described is susceptible to numerous variations and modifications and that all the details mentioned may be replaced by technically equivalent ones without affecting the scope of protection defined by the appended claims. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] EP 1318360A2

[0005]

Claims

[1] Air conditioning system comprising an air inlet (3), fans (10), a plurality of air outlets (4, 5) and a control unit, characterized by , that - it comprises a first and a second module (1, 2), wherein the air inlet (3) is common to the first and the second module (1, 2), and wherein the first module (1) comprises a plurality of first air outlets (4) and the second module (2) comprises a plurality of second air outlets (5), and wherein - the control unit determines the air discharge only through the first outlets (4), only through the second outlets (5) or simultaneously through the first and second outlets (4, 5). [2] Air conditioning system according to claim 1, characterized by that the first air outlets (4) are arranged in a lower area of ​​the air conditioning system and the second air outlets (5) are arranged in an upper area of ​​the air conditioning system. [3] Air conditioning system according to claim 1, characterized bythat the air inlet (3) is arranged in an upper area of ​​the air conditioning system. [4] Air conditioning system according to claim 1 or 2, characterized by that the first air outlets (4) define a 180° bend. [5] Air conditioning system according to claim 1 or 2, characterized by that the second air outlets (5) define an arc between 225° and 360°. [6] Air conditioning system according to claim 1, 2 or 5, characterized by that the second air outlets (5) are nozzles. [7] Air conditioning system according to claim 1, 2 or 4, characterized by that the first air outlets (4) are displacement diffusers. [8] Air conditioning system according to one of the preceding claims, characterized by that it has two silencers (6, 7). [9] Air conditioning system according to one of the preceding claims, characterized by that each of the first and second modules (1, 2) comprises a heat exchanger (8). [10] Air conditioning system according to one of the preceding claims, characterized bythat it further comprises a common filter (9) for the first and second modules (1, 2). [11] Air conditioning system according to one of the preceding claims, characterized by that each of the first and second modules (1, 2) comprises an intake temperature sensor and a flow temperature sensor. [12] Air conditioning system according to claim 10, characterized by that it comprises a pressure switch in the common filter (9) between the first and second modules (1, 2).

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