DE202022105205U1 - Heating element with an infrared heating module and a heat pump - Google Patents

Abstract

Heating element (10) comprising an infrared heating module (12), characterized in that a heat pump (16) is comprised, heat being generated by radiant heat from the infrared radiation of the infrared heating module (12), which is used to heat a heat transfer medium of the heat pump ( 16) serves.

Description

The invention relates to an energy-efficient heating element comprising an infrared heating module and a heat pump.

STATE OF THE ART

Various heating elements are known from the prior art, which have at least one infrared heating element, for example.

That's it DE 103 54 536 A1 a thermal insulation body for example, a radiant heater is known, which is formed from a foamed mineral material. A foam glass, for example, can be used as the foamed material. The radiant heater also includes a heating device and can, for example, be designed in multiple layers using known thermal insulation materials.

The WO 1997/15171 A1 shows an electrical resistance heater that can be used for room air conditioning in apartments and buildings using an electrically conductive heating layer that can be heated by electricity. On one side, a power supply is provided on an end face, which can be glued to a composite panel, for example. A heating layer is applied to one side of the composite panel. The composite panel itself can consist of foam glass, for example.

The DE 10 2014 101 358 A1 shows a one-man panel with electrical resistance heating in the infrared range. The heating layer is based on graphite particles or plastic fibers. Furthermore, an insulation panel as well as a reflection layer and a fiber board can be included. When using foam glass, the surface can be smoothed with a pore filler.

In the CH713961A2 a method for transferring the heat contained in a gas by means of a heat exchanger is shown. An indirectly heated gas, which emits infrared radiation, is used as the fluid and reaches the heat exchanger via a supply line. Inside the heat exchanger, the gas emitting infrared radiation is conducted into an absorber space which has an absorbing surface.

The DE 10 2013 003 155 A1 shows a wave breaker for installation in infrared heaters to reduce the surface temperature of a radiant surface.

The disadvantage of the known heating elements is that they are designed either as infrared heating modules or as heat exchangers, in which case only the advantages on which the specific type of heating is based can be utilized.

The object of the invention is therefore to propose an improved, particularly energy-efficient heating element in order to be able to utilize a large part of all the advantages. In particular, the object of the invention is to propose a more energy-efficient heat pump which is included in a heating element and which in particular has improved efficiency

This object is achieved by a heating element according to the independent claim. Advantageous further developments of the invention are the subject matter of the dependent claims.

DISCLOSURE OF THE INVENTION

The invention relates to a heating element comprising an infrared heating module.

It is proposed that a heat pump is included, heat being generated by radiant heat from the infrared radiation, which heat is used to heat a heat transfer medium of the heat pump. This allows the working temperature of the heat pump to be optimized, for example. In particular, the working point of the heat pump can be brought to an optimized potential. In this way, the overall efficiency of the heat pump can be improved.

The heat transfer medium can be brine or outside air. A brine-to-water heat pump, for example, uses geothermal heat, i. H. geothermal. On the other hand, an air/water heat pump uses heat energy from the ambient air to generate heat for heating.

The heat transfer medium can be preheated by the infrared heating module, for example, so that the working point of the heat pump can be optimized.

In one embodiment, the heating element can be used to provide hot water by heating the water through the heating element. In particular, the heating element can also be used to control the temperature of underfloor heating, with the temperature being able to be regulated or set in a low-temperature range of, for example, 5° C. for cooling up to 45° C. In particular, convection can take place through a low-radiation IR radiator.

The heat pump is intended in particular to obtain excess heat from the heat exchanger. This can be implemented, for example, by a mechanical valve with a fan that blows air through the heat exchanger. This heat is then fed to the heat pump. In another version, the heat pump can also be used to store hot water or to support the heating system.

The infrared heating module can in particular be formed from a metal housing which is enclosed on all sides and has a heating medium fitted inside. In particular, the heating medium is arranged on a radiating surface and has internal rear insulation. Furthermore, reflectors in the form of mirror foil or similar heat-resistant materials can be used.

According to a preferred embodiment, the heating element comprises a heat exchanger. Advantageously, the heat exchanger can comprise at least one fluid channel, wherein at least a partial area of the fluid channel is preferably designed in a spiral and pyramid-shaped manner. The heat exchanger can preferably consist of copper, aluminum, or be coated with or consist of a material that absorbs IR light, such as plastics, paints, etc., and in particular be embedded in the foam glass. A material that appears black to IR light is well suited to pass IR thermal radiation into the fluid channel for heat transfer to a heating medium such as water, air or oil. A large heat exchanger surface for converting the IR thermal radiation into fluid heat can be provided in a very small space by means of a spiral-type fluid channel routing. A compact heat exchanger design can be achieved by means of a spiral pyramid, similar to a truncated cone-shaped helix, encased by heat insulation of complementary shape, coated with an IR-reflecting coating such as aluminum, for example a funnel-shaped enclosure.

According to a preferred embodiment, the infrared heating module and the heat exchanger are arranged in parallel with each other, the heat exchanger having a tubular structure with a fluid. Such a composite module allows the positive properties of an infrared heating module to be combined with the positive properties of a heat exchanger. In particular, the efficiency of the heat exchanger can be optimized as a result. The infrared heating module is preferably arranged below the heat exchanger. This allows the radiant heat from the infrared heating module to rise and hit the heat exchanger. As a result, the heat transfer medium can be heated.

The improved efficiency of the heat exchanger is characterized in particular by the fact that the amount of kilowatts of electricity supplied to the heating element can be converted into a higher amount of kilowatts of heating energy. In a preferred embodiment, an efficiency of 1:9 can be achieved, so that 9 kW of heating energy can be generated from 1 kW of electricity. This is achieved in particular by amplification by interference of the infrared waves in the composite module. In other words, the layered heat exchanger can have an increased efficiency as a result.

In a preferred embodiment, the infrared heating module can be arranged adjacent to the heat exchanger, so that the heat transfer medium in the heat exchanger is heated by the infrared heating module. In particular, the infrared heating module is arranged below the heat exchanger. As a result, the rising heat from the infrared heating module can hit the heat exchanger and heat it up additionally.

In a preferred embodiment, an air layer store can be included. The air storage tank is arranged in particular between the heat exchanger and the heat pump. The structure can be provided as follows from top to bottom: heat pump, below the air storage tank, below the heat exchanger, and again below the infrared heating module.

In a preferred embodiment, a meandering air duct can be provided in the air stratification store. As a result, the air can be guided from the lower area of the air layer accumulator into the upper area of the air layer accumulator, with little installation space being required. As a result, the meandering shape is formed from bottom to top. In the lower area is the air storage tank, i. H. an inlet of the meandering air duct, connected to the heat exchanger. An outlet, in particular the meandering air duct, is connected in the upper area, in particular to the heat pump.

In a preferred embodiment, baffle plates can be provided in the air storage tank in order to influence the air flow. The baffles are provided in particular within the meandering air duct and can thereby generate a flow that is not only influenced by the meandering duct. In particular, within the mäanderför medium airflow, another waveform can be formed.

In a preferred embodiment, the heating module can be arranged in a preferably insulated housing, with a further shell being arranged around the housing so that air can circulate in an intermediate space between the housing and the shell.

In a preferred embodiment, at least one fan can be arranged in the intermediate space. This allows the air circulation to be controlled in a targeted manner. In an advantageous embodiment, at least 2 fans can be provided at different positions. A fan can be installed in the upper area, i. H. be arranged in a portion of the space provided above the heat pump. Another fan can be provided in a supply line between the heat pump and the intermediate space. Further fans can be provided at further positions.

In a preferred embodiment, at least one inlet opening can be formed in the shell and in the housing, so that an exchange of air between the intermediate space and the housing and between the intermediate space and the environment is ensured. The entrance opening is particularly in the lower area, i. H. provided in the space below the heat exchanger. As a result, an opening can initially be provided as an air inlet from the outside into the intermediate space. A further opening may be provided from the gap into the area within the housing. As a result, air can first get into the gap and then inside the housing.

In a preferred embodiment, a wavebreaker can be arranged below the heat exchanger. This can improve the efficiency of the infrared heating module.

In a preferred embodiment, the infrared heating module can be designed as a heating mat that can be operated with operating voltages of 12 V to 240 V. The heating mat can also be designed as a type of heating foil and therefore represent an electric radiant heater that converts electricity directly into heat.

In a preferred embodiment, an even heat distribution can be generated. This is achieved in particular by the arrangement of the fluid channels in combination with the infrared heating module and in combination with the heat pump and in particular the air layer storage tank.

In a preferred embodiment, the heating element can be connected to underfloor heating and can be used to supply the underfloor heating. In contrast to known and conventional underfloor heating, with the heating element according to the invention, an underfloor heating circuit can be heated directly, d. H. without a distributor.

character list

Further advantages result from the existing drawings and drawing descriptions. Exemplary embodiments of the invention are shown in the drawings. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into further meaningful combinations.

• 1 eine erste Ausführungsform eines erfindungsgemäßen Heizelements;
• 2 eine Ausführungsform eines Luftschichtspeichers;
• 3 eine weitere Ausführungsform eines Luftschichtspeichers;
• 4 eine weitere Ausführungsform eines erfindungsgemäßen Heizelements.

It shows:

• 1 a first embodiment of a heating element according to the invention;
• 2 an embodiment of an air stratified storage device;
• 3 another embodiment of an air stratified storage device;
• 4 another embodiment of a heating element according to the invention.

In the figures, the same or similar components are denoted by the same reference symbols.

1 shows a first embodiment of a heating element 10 according to the invention. The heating element 10 has a heat exchanger 14 with a meandering fluid channel 20 . An air layer storage tank 18 is arranged above the heat exchanger 14, an infrared heating element 12 is provided below the heat exchanger 14 and a wafer breaker 32 is provided below it.

The illustration is shown as a sectional view. As a result, the fluid channels 20 can also be seen.

A compressor is provided in the heat pump 16 . The heat pump is connected to the air stratified storage tank 18 via lines. The air layer store 18 is in turn connected to the heat exchanger 14 . The radiant heat of the infrared radiation generates heat that is used to heat a heat transfer medium of the heat pump 16 . The heat transfer medium can be brine or outside air.

The heat exchanger in 1 is shown in an exemplary embodiment. Other versions are also conceivable.

It can therefore also be understood in such a way that the heat exchanger 14 is arranged inside the air stratified storage device 18 . Furthermore, the infrared heating module 12 and the wafer breaker 32 can be arranged within the air layer storage device 18 .

A housing 26 is provided outside of all elements, which in turn is surrounded by a cover 24 . The housing 26 therefore surrounds the air layer storage tank 18, the heat pump 16, the infrared heating module 12 and in particular the wafer breaker 32. The housing 26 and the shell 24 can have a complementary shape, with the shell 24 preferably being formed larger than the housing 26 and the housing 26 completely surrounds. Such a shape can be, for example, a rectangular shape. Other shapes are also conceivable. This creates a gap that is used for air circulation. Several fans 28 can be provided in the intermediate space so that the air flow is driven. Inlet openings 30 are also provided in order to form an air inlet and to control the air circulation. Due to the air circulation, a kind of baking oven principle can be implemented, as is known in particular from the circulating air function in a baking oven.

The housing 26 can be formed from a galvanized material, for example. In particular, a galvanized steel plate can be used. In order to implement an aesthetically pleasing heating element 10, the housing 26 and/or the shell 24 may have an aesthetically pleasing coating.

The 2 and 3 show a layer of air storage 18 or parts of a layer of air storage 18 in a sectional view in two different embodiments. Of course, the embodiments can also be combined with one another, resulting in various modifications.

2 shows a possible first embodiment of an air layer store 18. The air layer store has a meandering air flow. A copper tube 36 can be provided in the air layer store 18, which also runs in a meandering shape and encloses a thermochemical store 38, such as air. Outside of the copper pipe 36 there may be a soapstone 34 which may contain a salt or salt hydrant.

3 shows a further embodiment of an air layer storage device 18. In this embodiment, baffle plates 22 are additionally provided in the meandering air duct in order to influence the air flow. As a result, a further wave-shaped deflection can take place within the meandering flow.

The illustrated embodiment of the air stratification store 18 can, for example, have a width of 40 cm to 50 cm, in particular 47 cm. The height can be, for example, 35 cm to 45 cm, in particular 42 cm. The guide plates 22 can have a length of 2 cm to 6 cm, in particular 3 cm. Other dimensions are also conceivable. The meandering channels can have a width of 5 cm to 7 cm, in particular 6 cm. The copper tube 36 can run within the meandering channels, in particular if no baffles 22 are provided.

4 shows a further embodiment of a heating element 10 according to the invention. In the upper area of the heating element 10, the heat pump 16 can be seen, which is designed as a return. The air layer storage device 18 is shown below, which can have, for example, air or water as the 1st component and brine or water as the 2nd component. In a further embodiment, an air-water mixture can be provided in a 1st component and a brine-water mixture in a 2nd component. The two components can be stored in 2 on collecting containers or in 2 containers below the air layer storage 18 and can be fed to the air layer storage 18 from these containers. The heat exchanger 14 is arranged further below the two containers. In the illustrated embodiment, 2 heat exchangers can be provided, with both heat exchangers 14 being able to have the same design. The heat exchangers can be connected to the containers or to the air layer storage device 18 via a line. The two heat exchangers 14 can be connected to the return, ie to the heat pump 16, with a further line. As a result, a circulation can be provided in which the air, the water, the air-water mixture, the brine-water can be mixed or the brine can rotate. The infrared heating module 12 can be seen below the two heat exchangers 14 . Below that, the Wavebreaker 32 is planned.

The components described are in turn arranged in a common housing 26 which is surrounded by a further casing 24 . The lines of the heat pump 16 and of the air storage tank 18 can lead out of this housing 26 or of the shell 24 . Within the complete housing 26, an air circulation tion can be achieved in order to improve the operating point of the heat pump 16.

Deviating from the representation in 1 Another infrared heating module 12 is provided, which is provided in an edge area of the housing 26 . The additional infrared heating module 12 can be provided, for example, on the side next to the two heat exchangers 14, heat being generated by radiant heat from the infrared radiation, which heat can be used, for example, to heat the housing 26 or generally to heat the interior volume of the housing 26.

A person skilled in the art will expediently combine further non-illustrated embodiments without deviating from the core of the invention.

Reference List

10

heating element

12

Infrared heating module

14

heat exchanger

16

heat pump

18

air layer storage

20

fluid channel

22

baffle

24

Covering

26

Housing

28

fan

30

entrance opening

32

wave breaker

34

soapstone

36

copper pipe

38

Storage

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 10354536 A1 [0003]
• WO 199715171 A1 [0004]
• DE 102014101358 A1 [0005]
• CH 713961 A2 [0006]
• DE 102013003155 A1 [0007]

Claims (15)

Heating element (10) comprising an infrared heating module (12), characterized in that a heat pump (16) is comprised, heat being generated by radiant heat from the infrared radiation of the infrared heating module (12), which is used to heat a heat transfer medium of the heat pump ( 16) serves. heating element (10) after claim 1 , characterized in that a heat exchanger (14) is included. heating element (10) after claim 2 , characterized in that the heat exchanger (14) comprises at least one fluid channel (20), wherein preferably at least a portion of the fluid channel (20) is formed spirally and pyramid-shaped. heating element (10) after claim 2 or 3 , characterized in that the infrared heating module (12) is arranged adjacent to the heat exchanger (14), so that the heat transfer medium in the heat exchanger (14) is heated by the infrared heating module (12). Heating element (10) according to one of claims 2 until 4 , characterized in that an air layer memory (18) is included. heating element (10) after claim 2 and 5 , characterized in that the air layer storage (18) between the heat exchanger (14) and the heat pump (16) is arranged. heating element (10) after claim 5 or 6 , characterized in that a meandering air duct is provided in the air stratification store (18). heating element (10) after claim 5 until 7 , characterized in that baffles (22) are provided in the air layer store (18) in order to influence the air flow. Heating element (10) according to one of the preceding claims, characterized in that the heating module (10) is arranged in a, preferably insulated, housing (26), with a further sleeve (24) being arranged around the housing (26), so that a Air circulation is made possible in a space between the housing (26) and the shell (24). heating element (10) after claim 9 , characterized in that at least one fan (28) is arranged in the intermediate space. Heating element (10) according to one of claims 9 or 10 , characterized in that at least one inlet opening (30) is formed in the sleeve (24) and in the housing (26), so that an exchange of air between the intermediate space and the housing (26) and between the intermediate space and the environment is ensured. Heating element (10) according to one of claims 2 until 11 , characterized in that a wave breaker (32) is arranged below the heat exchanger (14). Heating element (10) according to one of the preceding claims, characterized in that the infrared heating module (12) is designed as a heating mat which can be operated with operating voltages of 12 V to 240 V. Heating element (10) according to one of the preceding claims, characterized in that an even heat distribution can be generated. Heating element (10) according to one of the preceding claims, characterized in that the heating element (10) is connected to underfloor heating and serves to supply the underfloor heating.

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