IT201900001671U1 - PERFECTED EQUIPMENT FOR THE AIR CONDITIONING OF ENVIRONMENTS AND / OR HEATING OF SANITARY WATER - Google Patents

Description

PERFECTED EQUIPMENT FOR THE AIR CONDITIONING OF ENVIRONMENTS AND / OR HEATING OF SANITARY WATER

DESCRIPTION

The present invention relates to an improved equipment for the air conditioning of the rooms and / or for the heating of sanitary water.

Nowadays, to air-condition rooms throughout the year, heat pumps are used that exploit a circulating fluid.

To heat sanitary water, in some cases devices are used which have a thermal accumulator consisting of a water tank which is heated, and maintained at a preset temperature, and is ready for use in case of need.

These known techniques have some drawbacks.

In order to air-condition the rooms throughout the year by means of a heat pump and also heat the sanitary water, it is necessary to have two different types of equipment and this determines not negligible dimensions in the rooms and a considerable occupation of space.

In recent times, equipment has begun to establish itself on the market that exploit a thermal accumulator both for heating sanitary water and for air conditioning of the rooms.

However, even this known technique has some drawbacks.

Usually the various elements of the equipment are positioned in different places in the environment, determining even in these cases not negligible dimensions.

In some cases, the equipment has an external casing that encloses at least a part of the elements that make up the equipment.

This outer casing is substantially parallelepiped, but the thermal accumulator has a cylindrical shape. This determines the inability to make the most of the volume inside the enclosure.

The object of the present invention is to provide an equipment for air-conditioning rooms and / or for heating sanitary water which is capable of improving the known art in one or more of the aspects indicated above.

Within the scope of this aim, an object of the invention is to provide an equipment for air-conditioning rooms and for heating sanitary water which is compact and has a smaller footprint than similar equipment of known type.

Another object of the invention is to provide an equipment for air-conditioning environments and / or for heating sanitary water which allows, with the same overall dimensions, to have a greater volume available for the accumulator and consequently to save , energy, compared to similar equipment of the known type.

A further object of the invention is to provide an equipment for air-conditioning environments and / or for heating sanitary water which by increasing, for the same volume, the capacity of water available to the system, increases the thermal inertia by reducing at the same time the ignition times of its compressor.

Furthermore, the present invention aims to overcome the drawbacks of the known art in an alternative way to any existing solutions.

Not least object of the invention is to provide an equipment for the air conditioning of the rooms and for the heating of sanitary water which is highly reliable, relatively easy to manufacture and at competitive costs.

This task, as well as these and other purposes which will appear better later, are achieved by an equipment for the air conditioning of the rooms and / or for the heating of sanitary water, using a circulating fluid and comprising:

- a compressor,

- a capacitor,

- an evaporator,

- at least one lamination valve between said condenser, and / or said evaporator, and said compressor,

- an external envelope, which encloses the whole,

said equipment is characterized by the fact that it comprises a single thermal accumulator for both sanitary and technical water.

Further characteristics and advantages of the invention will become clearer from the description of a preferred, but not exclusive, embodiment of the equipment for air conditioning rooms and for heating domestic water according to the invention, illustrated, by way of non-limiting example, in the accompanying drawings, in which:

Figure 1 illustrates a simplified overall perspective view of an equipment for air conditioning environments and for heating sanitary water, according to the invention;

Figure 2 illustrates a different overall perspective view, simplified, of the equipment of Figure 1;

Figure 3 shows a simplified internal perspective view of the equipment of Figure 1;

Figure 4 illustrates a perspective view of a detail of an equipment for air conditioning rooms and for heating sanitary water, according to the invention;

Figure 5 illustrates an operating diagram of an equipment for air-conditioning rooms and for heating sanitary water, according to the invention, in an application form;

Figure 6 shows a perspective view of an installation of an apparatus according to the invention.

With reference to the aforementioned figures, an equipment for air conditioning rooms and / or for heating sanitary water, according to the invention, is globally indicated with the reference number 10.

The equipment 10 uses a circulating fluid and has an outer casing 11 having a substantially parallelepiped shape with a larger dimension along its length a which encloses the whole.

Inside this casing 11, the equipment comprises a thermal accumulator 12.

One of the peculiarities of the invention consists in the fact that this thermal accumulator 12 is unique and is used both to heat sanitary water and to heat technical water.

The term "sanitary water" in this description refers to the water intended for washing or washing.

The expression "technical water" in the present description refers to the water that is the heat exchange carrier between the circulating fluid, in the form of hot gas, and the sanitary water.

In particular, the thermal accumulator 12 comprises a first tank 13 for sanitary water contained inside a second tank 14 for technical water.

The first tank 13 has a height substantially equal to the height of the second tank 14 and of the thermal accumulator 12.

Another peculiarity of the invention consists in the fact that the thermal accumulator 12 has a parallelepiped shape and is therefore able to make the most of the space available inside the casing 11.

In this way a greater volume available to the accumulator is obtained, with the same overall dimensions of the external casing, saving energy, compared to similar equipment of the known type, with cylindrical accumulator.

Furthermore, with the accumulator 12 the water capacity available to the equipment is increased, at the same volume, while at the same time increasing the thermal inertia and reducing the ignition times of the compressor 15 of the equipment 10, illustrated below. .

Advantageously, the thermal accumulator 12 has a shape and dimensions such as to substantially occupy and fill an end part of the casing 11, for its entire height b and depth c.

In this description the term "height" identifies the dimension parallel to the vertical axis, in use, the term "depth" indicates the dimension orthogonal to the height b and to the length a.

The equipment 10 comprises, inside the thermal accumulator 12, a plurality of coils suitable for the heat exchange between a fluid circulating inside them and the water present inside the thermal accumulator 12.

Advantageously, these coils are three, arranged from top to bottom in the state of use of the equipment 10, wrapped around the first tank 13 and inside the second tank 14. These coils are:

- a first coil 16,

- a second coil 17,

- a third coil 18.

The first coil 16 and the third coil 18 are connected through a first heat exchanger plate 19 for a floor heating circuit 20.

In particular, the lower end of the first coil 16 enters the first heat exchanger plate 19 and the upper end of the third coil 18 exits from this first plate 19.

The second coil 17 is interposed between the first coil 16 and the third coil 18 and is connected, for example, to a solar collector 30, for solar heat recovery and / or to the floor heating circuit 20.

The upper end of the first coil 16 is connected to the compressor 15.

The lower end of the third coil 18 is connected to an evaporation / condensation zone 21 of the equipment 10.

The evaporation / condensation zone 21 includes:

- a condenser 22, for example consisting of a condensing battery, to which the lower end of the third coil 18 is connected,

- an evaporator 25.

In particular, the condenser 22 and the evaporator 25 are in a single body, consisting of a double exchanger 32.

The evaporation / condensation zone 21 also includes:

- a second exchanger plate 23, connected and interposed between the double exchanger 32 and a ventilated convector 24,

- a fan 26 connected to the evaporator 25,

- a first lamination valve 27, connected and interposed between the double exchanger 32 and / or the third coil 18 and the second exchanger plate 23,

- a second lamination valve 31 connected and interposed between the double exchanger 32 and the compressor 15,

- a suction portion 28 near the double exchanger 32.

Advantageously, the fan 26 is always active and allows excess heat and / or cold to be disposed of outside the casing 11.

The compressor 15 of the equipment 10 is connected, at the inlet, to the second exchanger plate 23 and / or to the second lamination valve 31 and, at the outlet, to the first coil 16 and / or to the first lamination valve 27 and / or to the double exchanger 32.

The evaporation / condensation zone 21 can also comprise an auxiliary fan 33 which can be activated at will to exploit excess heat and heat the room in which the equipment is installed, for example, to dry linen in a laundry room and / or to other uses.

The use of the equipment 10 according to the invention is as follows.

For the operation of the equipment 10, for the production of domestic hot water only (winter / summer), the compressor 15 compresses the circulating fluid, in the form of hot gas, and sends it to the first coil 16 which heats the domestic water in the top of the buffer tank 12.

This heat, concentrated in the upper part of the thermal accumulator 12, allows the sanitary water to reach temperatures above 80 ° C.

The hot water is then mixed by the user for common uses.

The fluid leaving the first coil 16 enters the first exchanger plate 19 without releasing heat, the floor heating circuit 20 being inactive.

From the first exchanger plate 19 the fluid enters the third coil 18, completing the passage from gas to liquid, favored by the stratification of the sanitary water which is colder in the lower part of the first tank 13.

The liquid fluid then exits from the third coil 18, reaching the evaporation / condensation zone 21.

The liquid fluid enters the double exchanger 32 condensing and expands crossing the hot gas of the exchanger to increase its evaporation. The fan 26 expels the cold.

The evaporated circulating fluid returns to compressor 15 and the cycle begins again.

Once the desired temperature of the sanitary water thermostat is reached, the equipment 10 stops.

For the winter operation of the equipment 10, for space heating and the production of domestic hot water, the compressor 15 compresses the circulating fluid, in the form of hot gas, and sends it to the first coil 16 which heats the domestic hot water in the top of the buffer tank 12.

This heat, concentrated in the upper part of the thermal accumulator 12, allows the sanitary water to reach temperatures above 80 ° C.

The hot water is then mixed by the user for common uses.

The fluid leaving the first coil 16 enters the first exchanger plate 19, releasing heat.

The first exchanger plate 19 heats the water in the floor circuit 20.

Generally the temperatures used for this type of heating oscillate between 30 ° C and 35 ° C.

From the first exchanger plate 19 the fluid enters the third coil 18, completing the passage from gas to liquid, favored by the stratification of the sanitary water which is colder in the lower part of the first tank 13.

The liquid fluid then exits from the third coil 18, reaching the evaporation / condensation zone 21.

The liquid fluid enters the double exchanger 32 condensing and expands crossing the hot gas of the exchanger to increase its evaporation. The fan 26 expels the cold.

The evaporated circulating fluid returns to compressor 15 and the cycle begins again.

Once the desired temperature of the sanitary water thermostat and the thermostat of the rooms to be heated has been reached, the equipment 10 stops, but the circulation of the water in the heating circuit continues.

If it is not necessary to heat the floor due to the thermal inertia to be used, the equipment 10 can rapidly heat the rooms through one or more ventilated convectors 24.

This can happen, for example, during the change of seasons or in periods with mild temperatures during the course of the year.

In this way, heat is supplied to the rooms quickly, without having to wait for the entire floor to heat up.

For the summer operation of the equipment 10, for the air conditioning of the rooms only, the compressor 15 compresses the circulating fluid, in the form of hot gas, and sends it directly to the double exchanger 32 which functions only as a condenser.

The condensed fluid leaving the double exchanger 32 passes through the first lamination valve 27 and enters the second exchanger plate 23 expanding to cool the water of the convectors 24.

The circulating fluid in the form of expanded gas returns to the compressor 15 and the cycle begins again.

Once the pre-set water temperature of the convectors has been reached (normally 7 ° C), the equipment 10 stops, but the circulator of the convectors 24 continues to operate, not shown in the figures.

For summer operation, for the production of domestic hot water and air conditioning of the rooms, the compressor 15 compresses the circulating fluid, in the form of hot gas, and sends it to the first coil 16 which heats the domestic water in the upper part of the heat accumulator 12.

This heat, concentrated in the upper part of the thermal accumulator 12, allows the sanitary water to reach temperatures above 80 ° C.

The hot water is then mixed by the user for common uses.

The fluid leaving the first coil 16 enters the first exchanger plate 19 without releasing heat, the floor heating circuit 20 being inactive.

From the first exchanger plate 19 the fluid enters the third coil 18, completing the passage from gas to liquid, favored by the stratification of the sanitary water which is colder in the lower part of the first tank 13.

The liquid fluid then exits from the third coil 18, passes through the first lamination valve 27 and enters the second exchanger plate 23 expanding, to cool the water of the convectors 24.

The circulating fluid in the form of expanded gas returns to the compressor 15 and the cycle begins again.

Once the desired temperature of the sanitary water thermostat is reached, the hot gas leaving the compressor 15 is sent directly to the double exchanger 32 which functions only as a condenser.

The condensed fluid leaving the double exchanger 32 passes through the first lamination valve 27 and enters the second exchanger plate 23 expanding to cool the water of the convectors 24.

The circulating fluid in the form of expanded gas returns to the compressor 15 and the cycle begins again.

Once the pre-set water temperature of the convectors has been reached (normally 7 ° C), the cycle restarts according to the operation of the equipment 10 for the production of domestic hot water only.

For the intake of air, the equipment 10 is provided with one or more openings 50 in the lower part of the casing 11, for drawing the air from the environment in which it is installed.

The technical room 100 in which the equipment 10 is installed is subject to depression, due to the extraction of air for the double exchanger 32.

This technical room 100 must therefore be equipped with a grille 101 for inlet air from the outside, which can be adjusted according to the performance of the equipment 10.

This renewed air inside the room allows the machine to function correctly, without subtracting the thermal energies already brought into the rooms to be air-conditioned.

It should be noted that, in the case of installation of the equipment 10 inside a technical room 100, it is not subject to variations in external atmospheric temperature and humidity. In this way the defrosting interventions are reduced, at the same time increasing the overall yield.

In this installation, the fan 26 expels the excess heat from the equipment 10, heating the technical room 100. The equipment 10, in this case, is connected to the outside by means of a duct 102 for expelling the heat / cold depending on of the season.

The equipment 10 can also be installed outside these environments, as long as it is protected by an insulating casing, always equipped with suitable inlet and outlet openings for the air.

The equipment 10 comprises a control unit 29, of a per se known type, suitable for governing and managing its operation.

In practice it has been found that the invention achieves the intended aim and objects by providing an equipment for the air conditioning of the rooms and for the heating of sanitary water which is compact and has a smaller footprint than similar equipment of the known type.

The invention has provided equipment for the air conditioning of the rooms and / or for the heating of sanitary water which allows, with the same overall dimensions, to have a greater volume available for the accumulator and consequently to save energy, compared to similar equipment of the known type.

It should be noted that, with the invention, equipment has been provided for the air conditioning of the rooms and / or for the heating of sanitary water which, by increasing, for the same volume, the water capacity available to the system, increases the thermal inertia while reducing the ignition times of its compressor.

The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept; moreover, all the details can be replaced by other technically equivalent elements.

In practice, the materials employed, so long as they are compatible with the specific use, as well as the contingent shapes and dimensions, may be any according to requirements and to the state of the art.

Where the features and techniques mentioned in any claim are followed by reference marks, these marks have been affixed for the sole purpose of increasing the intelligibility of the claims and consequently such reference marks have no limiting effect on the interpretation of each element. identified by way of example by these reference signs.

Claims (16)

CLAIMS 1. Equipment (10) for the air conditioning of the rooms and / or for the heating of sanitary water, using a circulating fluid and comprising: - a compressor (15), - a capacitor (22), - an evaporator (25), - at least one lamination valve (27, 31) between said condenser (22), and / or said evaporator (25), and said compressor (15), - an external envelope (11), which encloses the whole, said equipment (10) being characterized in that it comprises a single thermal accumulator (12) for both sanitary and technical water. 2. Equipment (10), according to claim 1, characterized in that said thermal accumulator (12) has a parallelepiped shape. 3. Equipment (10), according to one or more of the preceding claims, characterized in that said thermal accumulator (12) comprises a first tank (13) for sanitary water and a second tank for technical water, said first tank (13) being contained inside said second tank (14). 4. Equipment (10), according to one or more of the preceding claims, characterized in that said first tank (13) has a height substantially equal to the height of said second tank (14) and of said heat accumulator (12). 5. Equipment (10), according to one or more of the preceding claims, characterized in that said thermal accumulator (12) has a shape and dimensions such as to substantially occupy and fill an end part of said casing (11), in order to its entire height (b) and depth (c). 6. Equipment (10), according to one or more of the preceding claims, characterized in that it comprises, inside said thermal accumulator (12) a plurality of coils, connected in series, wound around said first tank (13) and inside said second tank (14). 7. Equipment (10), according to one or more of the preceding claims, characterized in that said condenser (22) and said evaporator (25) are in a single body, consisting of a double exchanger (32). 8. Equipment (10), according to one or more of the preceding claims, characterized in that said coils are three, from top to bottom, respectively: - a first coil (16), - a second coil (17), - a third coil (18), said first coil (16) and said third coil (18) being connected through a first heat exchanger plate (19), said second coil (17) being interposed between said first coil (16) and said third coil (18), the lower end of said third coil (18) being connected to said double exchanger (32) and / or to said at least one lamination valve (27). 9. Equipment (10), according to one or more of the preceding claims, characterized in that it comprises: - a second exchanger plate (23), connected and interposed between said double exchanger (32) and a ventilated convector (24), - a suction portion (28) in proximity to said evaporator (25). 10. Equipment (10), according to one or more of the preceding claims, characterized in that said at least one lamination valve (27) is interposed between said double exchanger (32), and / or said third coil (18), and said second exchanger plate (23). 11. Equipment (10), according to one or more of the preceding claims, characterized in that said at least one lamination valve (31) is interposed between said double exchanger (32) and said compressor (15). Equipment (10), according to one or more of the preceding claims, characterized in that it comprises a fan (26) connected to said double exchanger (32). 13. Equipment (10), according to one or more of the preceding claims, characterized in that it comprises two rolling valves: - a first rolling valve (27), said first rolling valve (27) being connected and interposed between said double exchanger (32), and / or said third coil (18), and said second exchanger plate (23), - a second lamination valve (31), said second lamination valve (31) being connected and interposed between said double exchanger (32) and said compressor (15). 14. Equipment (10), according to one or more of the preceding claims, characterized in that said compressor (15) is connected, at the inlet, to said second exchanger plate (23) and / or to said second lamination valve (31) and , at the outlet, to said first coil (16) and / or to said first lamination valve (27) and / or to said double exchanger (32). 15. Equipment (10), according to one or more of the preceding claims, characterized in that it has one or more openings in the lower part of said casing (11). 16. Equipment (10), according to one or more of the preceding claims, characterized in that it comprises a control unit (29).