DK9200246U3 - Electric heat pump designed as air to air wall radiator - Google Patents

Description

DK 92 00246 U3

Description

Denominations

Laval; Decentralized, low-energy radiator.

Scope of production

This generation relates to a low energy consuming electric radiator for use in heating air in the individual building rooms.

The electric radiator is designed as a single-circuit, air-to-air heat pump for placement directly in the room where the indoor air is desired to be heated.

The electric radiator is designed such that the evaporator of the heat pump is placed directly on the outside of the wall at the space which is desired to be heated, while the capacitor is installed inside the room, typically directly on the other side of the same wall. The capacitor is designed as a panel radiator.

Prior art

Low energy consuming electric radiators of the above kind, do not exist today.

There are single-circuit heat pumps, but these are used for: 1. cooling in the form of coolers / refrigerators / freezers or air-conditioning systems; 2. dehumidification of indoor air.

There are also heat pumps intended for heating: 1. domestic hot water heating, 2. geothermal heating systems, 3. central air heating systems.

Common to these systems is that all of them are burdened by one or more, expensive, energy-intensive, secondary heat transport systems

Finally, heat pumps are included in heat recovery plants, but here the heat is not extracted from the outside air.

The technical problem to be solved

The heat pumps known today, for heating indoor air, are somewhat inconvenient, as central systems are used with consequent installation costs and energy losses in the collection and distribution circuits.

With the generation, it is desired to provide an improved type of the known heating systems. The new low-energy consuming electric radiator is built as a small, decentralized, electrically driven, single-circuit, air-to-air heat pump that delivers the processed heat directly into the room that is desired to be heated.

This allows for a much easier installation by the user as well as the possibility of replacing only the radiator (s) in existing building, which is the most energy consuming.

The new technique

The new feature in the generation is that the electric radiator is designed as a decentralized heat pump for direct installation in / on the space that is desired to be heated in relation to the individual rooms.

2 DK 92 00246 U3

The technical impact

By using the above-mentioned technique in connection with the prior art, the apparatus can be tested and adjusted at the factory and is therefore suitable for actual series production. Moreover, mounting with the user is so simple that it can be carried out by 'low-skilled personnel' both in existing construction and in new construction.

Significantly better energy utilization is achieved than is the case in the known heating systems: 1. 20% in relation to central heat pump systems, 2. 65% in relation to electric radiators, 3.75% in relation to central plants with heat production in the burning of fossil fuels. fuels, or better.

The production and particularly advantageous embodiments are explained in detail below with reference to the photographs.

photo List

Photo 1 shows the entire Lavel system.

Photo 2 shows the capacitor.

Photo 3 shows the evaporator integrated with the compressor. Exemplary examples In photo 1 we see the entire Lavel system mounted in a demonstration set. The connections between external and internal units are made up of flexible pressure hoses mounted with quick couplings. This means that the individual units can be filled with refrigerant and can be tested at the factory, while the installation at the user can be done through a small hole in the outer wall. The requirement for the installer can thus be limited to: being able to drill a hole, assemble a coupling and plug in a socket.

Photo 2 shows the capacitor (radiator part) for mounting on the interior wall. The construction thereof is such that the air circulation is effected by passive chimney effect.

In a particularly advantageous embodiment, a fan is additionally mounted which allows an increased heat release to the indoor air at extreme peak loads.

In another embodiment, an electric heating element is additionally mounted within the condenser which allows for additional heat supply at extremely low outdoor temperatures.

In addition, a multi-stage thermostat is mounted on the capacitor which controls the operation of the compressor, the fan and the electric heater based on the indoor air temperature, in conjunction with the temperature desired by the user.

Photo 3 shows the evaporator (heat absorber), which in this edition is combined with the compressor part. This unit is mounted on the outside wall - in the outdoor air. The construction of the evaporator is such that the air circulation is effected by passive chimney effect.

In a particularly advantageous embodiment, a fan is also provided, which allows for increased heat absorption, from the outside air, at extreme peak loads and at very low outdoor temperatures.

The compressor part is made up of an electrically driven compressor, an electric change valve for reversing the heat pump and a

Claims (6)

1. Low-energy consuming electric radiator designed as a small, decentralized, single-circuit heat pump for transporting heat from the outdoor air to the indoor air, consisting of a capacitor (photo 2), a compressor (photo 3th) and an evaporator (photo 3tv), which is new to heat absorption from outdoor air and heat release to indoor air takes place in a single refrigerant circuit which delivers the worked up heat directly into the room that is desired to be heated. 2. Low energy consuming electric radiator according to claim 1, which is new in that the operation of the heat pump is controlled by a thermostat on the condenser side of the heat pump (photo 2 at bottom, TV). Low energy consuming electric radiator according to claims 1 and 2, which is new in that the air circulation around both the capacitor (photo 2) and the evaporator (photo 3) is essentially as a passive air coating (chimney effect). Low energy consuming electric radiator according to claims 1,2 and 3 which is new in that defrosting takes place by reversing the heat pump. Low energy consuming electric radiator according to claims 1,2,3 and 4, which is new in that the operation of the heat pump is optimized, to varying outdoor air temperatures, by inserting different capillary tubes into the refrigerant circuit. Low energy consuming electric radiator according to claims 1,2,3,4 and 5, which is new in that both fans and supplementary electric heating element can be inserted under extreme operating conditions.