CZ33766U1 - Multifunctional air-conditioning unit - Google Patents

Description

Multifunctional air handling unit

Field of technology

The technical solution concerns a multifunctional air-conditioning unit designed for central ventilation, hot-air circulating heating and cooling of low-energy and passive family houses, residential units and civil engineering.

Prior art

Current air handling units are fundamentally designed as monofunctional to ensure the required microclimatic parameters of the indoor environment of buildings.

For forced ventilation, separate ventilation units with heat recovery or reheating of the supply air are then used. Special hot circulation units with low-speed fans and integrated air heaters from lamella registers are also designed for hot-air central heating.

As cooling systems, mostly multi-split systems are used in buildings, with local wall units in each room.

The combination of these devices in buildings is then very complicated technically and operationally, as well as in terms of separate regulation and high acquisition costs.

The essence of the technical solution

The essence of the multifunctional air handling unit consisting of a cabinet, two radial fans, recuperative countercurrent exchanger, heater and air cooler, filters is that the rotary mixing flap is located in the partition separating the circulating air supply sector and the mixing sector into which the recuperation countercurrent exchanger outlet section opens. and a supply air by-pass flap, the rotary mixing flap hermetically closing the circulating air supply sector or the opening in the partition in its extreme positions.

Explanation of drawings

The accompanying drawings show an example of an embodiment of a multifunctional air handling unit in an under-ceiling design, where Fig. 1 shows the function of the unit in the basic mode of equal pressure ventilation with heat recovery, reheating or cooling, with a fully open mixing flap and a closed bypass flap.

Fig. 2 shows the function of the unit in a combined mode of equal pressure ventilation with heat recovery, together with a circulating system for hot air heating or cooling, with a partially open mixing flap and a closed by-pass flap.

Fig. 3 shows the function of the unit in the mode of circulating hot air heating or cooling, without ventilation, with a completely closed mixing flap and a closed bypass flap.

Fig. 4 shows the function of the unit in the mode of equal pressure ventilation without heat recovery, with an open mixing flap and an open bypass flap of the passive cooling bypass summer.

- 1 CZ 33766 Ul

Example of implementing a technical solution

The multifunctional air handling unit according to FIGS. 1 to 4 consists of a housing 1 in which radial fans 2 and 3, a recuperation countercurrent exchanger 12, an air heater 5, an air cooler 4, a circulating air filter 6, a supply air filter 14 and an exhaust filter 13 are located. of air. In the dividing partition 10, separating the sector 7 of the circulating air supply ci and the mixing sector 9, a rotary mixing flap 8 is arranged. At the same time, the flap 11 of the supply air by-pass ei opens into the mixing sector 9. A microprocessor control cabinet is located in a separate space 15.

The multifunctional air handling unit provides a number of functions in a single combined unit for creating the optimal thermal-humidity microclimate of modern buildings.

Its main advantage is the saving of space and piping during its installation, a significant reduction in acquisition costs and common microprocessor control.

Claims (1)

CLAIMS FOR PROTECTION A multifunctional air handling unit, consisting of a housing (1), two radial fans (2, 3), a recuperation countercurrent exchanger (12), an air heater (5), an air cooler (4) and filters (6, 13, 14), characterized in that it is provided with a rotary mixing flap (8) located in the dividing partition (10) separating the sector (7) of the circulating air supply and the mixing sector (9), into which the outlet section of the recuperation countercurrent exchanger (12) opens and which is provided with a supply air by-pass flap (11), the rotary mixing flap (8) hermetically closing either the sector (7) of the circulating air supply (ci) or the opening in the dividing partition (10) in its extreme positions.