JPH07509773A - Heat storage block for electric heat storage heater - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Heat storage block for electric heat storage heater The invention relates to a heat storage block for an electric heat storage heater having the features according to the preamble of claim 1. Regarding lock.

Electrical with external housing and thermal storage block located within the external housing A heat storage heater is known from German Patent No. 2 228 444. heat storage block Between the external housing of the block and the external wall, there is a There is a ventilation space where you can This heat is caused by convection as well as ventilation. The storage heater is additionally equipped with a fan, which allows it to Air is drawn in from the air and carried into or through the ventilation space. It is carried to the exhaust port.

A heat reservoir filled with thermal storage filler is located slightly inward from the external wall around which the atmosphere flows. An internal wall is provided to define the internal space of the storage block. The heat storage filler is High melting point heat storage bricks with openings or latent heat of melting can store relatively large amounts of heat in the form of The heat storage material includes one of the following materials.

Placed within the thermal storage filler and bonded to the external surface is, in effect, a storage filler. An electric heating element in the form of a heating tube that extends up to the entire height of the material. If you have a fever If the storage block has a relatively large width, several heating elements can also be placed next to each other. , and can be disposed within the heat storage filler with appropriate spacing.

The high thermal insulating properties of heat storage fillers are well known in the prior art and have been demonstrated in conjunction with electrical heat storage materials. This is important for thermal storage filling blocks located in For this purpose external walls and The interior walls are hermetically joined together to define a hermetically insulated space. This hermetic break The thermal space is actually filled only with hydrogen gas or with another getter gas.

The adiabatic space is provided with a corresponding gas getter device (in this case, especially hydrogen getter device 1). ) and typically via welded connecting pipes or some other sealing means. It is thus connected to a getter device which is guided into the external wall. Gas pressure in a closed space changes depending on this getter device. The getter material in the getter device The gas pressure in the enclosure may be reduced to particularly low values (0,001 mbar) depending on the purpose of use. Thermal insulation from the inner wall to the outer wall can be achieved very effectively. That's it The superinsulation achieved by heating the getter material in the getter device The gas pressure in the more adiabatic space increases accordingly, and thermal convection increases slowly as well. Therefore, it may gradually worsen. This allows complex control devices to function normally. The residual gas removal mechanism may only work under low energy conditions. Not possible.

The known heat storage block is cubic in shape and its dimensions are similar to that of an electric heat storage heater. The same size as required for the external housing size. heat storage block External and internal walls of the heat storage filler extend on all sides of the heat storage filler. external walls and internal Those located in the insulating space between the walls may be formed, for example, in the form of a thin copper foil. A plurality of optional foil-like heat dissipation shield plates made of metal. The location of the heat radiation shield is on the external wall. and internal walls at the same time and by spacer elements that maintain an even spacing over the entire surface. Maintained within an insulated space. The raw materials for thermal storage fillers are very heavy and require spacers. The base must have a structure that can withstand the weight. Such a star Pacer elements must be placed ubiquitously in many locations. They are each forming a thermal bridge directly between the external and internal walls of the heat storage block.

The double wall construction of the thermal storage block is considered necessary for optimal insulation. However, it is not without manufacturing problems. The formation of the insulation space is completed. All heat storage fillers must be placed in the heat storage block before it is discontinued. The only problem I have is that I have to do it. Repairs to heat storage fillers (for sterilization) (does not occur) and repairs to heating elements (often occur) if there is an opening in the insulated space. because of necessity, it is practically impossible or economically impractical to carry out at normal cost. Can not. Thermal expansion that occurs during use and can vary greatly depending on the circumstances, The required spacer elements are often large and heavy and difficult to account for. be.

The purpose of the invention is to provide a heat storage block of the type under discussion, maintaining a high heat storage efficiency. The objective is to construct and improve the structure so that it can be manufactured substantially more economically.

The above object is achieved in a heat storage block with the features according to the preamble of claim 1. This can be solved by using the features described in the feature section of claim 1.

According to the invention, the heat storage block is placed on one side of the heat storage block, i.e. in the position where the lid is currently placed. Optimal insulation is achieved by properly connecting the getter device to the Not yet. Therefore, the “open” side of the thermal storage block should have a thermal storage filler in the thermal storage block. It has been designed to be able to be filled inside the lock. first external wall then internal wall By welding or soldering to the It is possible to carry out all the necessary tests. Therefore, in effect, the manufacturing process or the place of use On either side, fill with thermal storage filling material and cap the thermal storage filling block You can close it with The structure of the lid itself or the addition of an optional insulation layer to the lid By either means, the lid must of course be well insulated. insulation Some efficiency may have to be sacrificed and/or as already explained. Recognizes the fact that the insulation space must be made larger for manufacturing advantages. It is.

Since the external wall and internal wall are in the shape of a container with an open top, these two walls are assembled using a deep drawing process for steel plates. It may also be manufactured on a large scale. Regarding this, at least if the number becomes large, the manufacturing date will be increased. It is very efficient and good to reduce the amount significantly. The outer container consists of only the inner container and the upper outer rim. They are bonded together, and that part becomes a thermal bridge. However, this hot bubble spray In any case, it is installed in a well-insulated area that is in contact with the lid. Furthermore, this There is no problem with hot burino/. This is because conventional technology mainly uses spacers. – The importance of elements is overlooked, or those areas can be at least reduced to a reality. This is because it is possible. In other words, it is suspended in either the inner container or the outer container, so the shape Even though all of the above changes occur due to orbital expansion, this space is always large enough. This is due to the fact that it is guaranteed. Fasten two containers together at the edges As a result of this, the two containers are also primarily fixed to each other in place. Ton Even a small spacer element dissipates heat! Fix the shield plate in the required position within the insulation space. I can do that.

According to the present invention, theory "2" is not suitable for heat insulation, but is unacceptable from a manufacturing point of view. One aspect of IT efficiency that can always be observed 1. i.e. an insulating block with an upper surface As a result, thermal insulation is also advantageously improved. be able to. In general, the thermal efficiency and heat storage efficiency of the thermal storage block according to the present invention are , in practice it is no worse than known thermal storage systems, and from a manufacturing point of view it is virtually This is advantageous both economically and economically.

Preferred configurations and embodiments of the heat storage block according to the invention are defined in claims 2 to 18. The subject matter.

An electrical heat storage heater preferably manufactured using a heat storage block according to the invention The data is described in the characterizing part of claims 19 and 20. Achieved by conventional technology Adjust the width of the cube of one heat storage block to the desired width of the electric heat storage heater. Of course, it was not difficult to match. However, electric heat storage heaters The depth of the external housing typically consists of a limited range, typically 30 an Multiple circular containers are preferred because they can be increased to a smaller range than the The advantages of this type of configuration can be exploited by using oval heat storage blocks. A relatively wide range of possibilities for electric heat storage heaters This also creates the possibility of using an external housing that is not very deep.

The invention will be explained in more detail below with reference to the drawings, which show exemplary embodiments. It will be done.

FIG. 1 is a longitudinal sectional view of an exemplary preferred embodiment of a heat storage block according to the invention.

FIG. 2 is an enlarged view of the getter device area of a thermal storage block according to the invention.

FIG. 3 is an exemplary electrical heat storage heater according to the present invention with a portion of the external housing cut away. 1 is a substantially simplified perspective view of an exemplary embodiment; FIG.

As background to the teachings of the present invention, let us first discuss the heat storage technology used in the present invention. This is mentioned above in German Patent No. 2228444, which describes the The current state of the technology is referred to.

FIG. 1 shows a longitudinal section through an exemplary embodiment of a heat storage block 1 according to the invention.

The heat storage block 1 has an external wall 2 around which the atmosphere flows, and a small amount of air from the external wall 2. An internal wall 3 provided inside with a gap, a heat storage filler 4, and a heat storage filler 4. It has an electrical heating element 5 arranged inside and connected to the outside. external wall 2 and the inner wall 3 are integrally connected in a sealed manner. They are essentially hydrogen gas (or another suitable gas) surrounding the adiabatic space 6 filled with There is. The insulation space 6 is provided with a connection I introduced into the external wall 2 by hermetically sealing, in particular by welding. It is connected to the gas getter device 1B by a pipe. The gas pressure in the insulation space 6 is It can be changed by the getter device 8 connected. For this, see Figure 2 later. We plan to explain this in some detail.

What is important about the present invention is that the outer container 9 has an outer wall 2 having a substantially circular cross section. An inner container 1 having a slightly smaller diameter and a slightly lower inner wall 3. 0, and these walls are hermetically sealed at the upper peripheral edge 11. and the fact that the upper open end of the container 9 and 10 is connected to the lid 12. The fact is that it is sealed in a way that is more thermally well insulated.

Therefore, the inner container IO is an outer container that is structurally influenced by the dimensions of the inner container IO. Make sure that the distance between the outer wall 2 and the inner wall 3 is as large as necessary to ensure the safety of the inner surface of the wall 9. The inner container 1o is hermetically sealed at the end of the outer peripheral edge 11 of the outer container 9. In order to withstand mechanical loads, they are joined to create a somewhat “suspended” state. It is. The manufacturing advantages of this structure are referenced in the schematic section. explained.

Regarding point 2 of ``manufacturing'', the base 13.14 of the container 9, IO should be turned downward and outward. It is advantageous to configure the steel sheet by curving it in the same direction, especially when using a steel sheet deep drawing process. .

Due to the substantial pressure difference, this design also has advantages in terms of device stability and long-term reliability. It is.

Preferably, a plurality of foil-shaped or plate-shaped heat radiation shielding walls 15 are arranged in the heat insulating space 6. has also been proposed in the prior art. To simplify the illustration of FIG. In the exemplary embodiment shown in FIG. Only 5 is displayed. In order to install the heat radiation shield wall 15 in this position, the heat radiation shield The wall also has the shape of a container of suitable diameter and height. Inside the insulation space 6 Gas flow not shown in the insulation space to allow gas to flow freely It is recommended to provide an opening. The heat dissipation shielding wall 15 also has an outer wall at the upper outer peripheral edge. 2 and the internal wall 3 as well. In the conventional technology, as mentioned above, A relatively heavy intervening element is arranged between the outer wall 2 and the inner wall 3. These intervening elements can be omitted in the storage block l according to the invention. intervention of the present Both elements allow the inner wall 3 to be easily moved slightly relative to the outer wall 2. and maintain the heat dissipation shielding wall 15 at an appropriate distance within the heat-insulating space 6. It only has the function of This maintains the necessary spacing for the heat dissipation shield wall 15 itself. This can be achieved by providing a protrusion. The gas flow aperture can also be defined by the shape of the gas flow aperture. The release required to form a protruding structure without the need for new machining operations It can be formed at the same time as the heat shield wall 15 is processed.

FIG. 2 shows the outside of the thermal storage block l with the connecting pipe 7 connected to the getter device 8. FIG. 3 is an enlarged schematic diagram of a portion of a portion wall 2 and an inner wall 3. FIG. Illustrated exemplary embodiments In this case, a special getter housing 16 is provided on its internal base. a hydrogen getter device with an insert of getter material 17, which in some cases is a metal hydride; It is at position 8. An infiltration sleeve 18 hermetically enclosed within the getter housing 16 is , inserted into the getter material 17 for controlling the temperature of the getter material 17. It serves to house the heating element. There is a heat insulating space at the base of the getter housing. 6 serves to heat the getter material to the desired temperature with an increase in the desired gas pressure within the A heating element 19, for example in the form of a tubular heating body, is provided. Connection pipe 7 Of course, during operation, the insulating space 6 is hermetically sealed, and the inside of the heat insulating space 6 is first evacuated, and then the predetermined It has an opening 20 which is used to fill with gas, in particular hydrogen gas.

A plurality of foil-shaped heat radiation shielding walls 15 are shown between the external wall 2 and the internal wall 3 on the left side of FIG. It is.

Various further advantages of the invention are illustrated in detail in FIG.

First, as mentioned above, the lid 12 is designed to sufficiently thermally insulate the container 9.10. Should be sealed. Therefore, the lid 12 itself has a double wall structure with a heat insulating space. It is good to be. This will ensure effective evacuation from the beginning and ensure the best and reliable It can also create an insulating effect. The area where unavoidable thermal bridges occur is the outer periphery. Part 11 only. However, such a construction of the lid 12 is It is not provided in the exemplary embodiment, or at least not shown. That cost Instead, in this case, a relatively thick heat insulating layer 21 is arranged between the heat storage filler 4 and the lid 12. has been done.

Regarding the manufacturing advantages of separating the lid 12 from the rest of the getter housing has already been explained in the general explanation of each part. The lid 12 covers the outer periphery of the container 9.10. Welded, soldered, glued or otherwise to the edge 11 permanently and securely affixed by means of However, in this case the lid 12 As for the internal cavity defined by the internal wall 3 and containing the heat storage filler 4 Since the pressure is not extremely low between the There is no need to stop. However, since it is firmly and permanently bonded to the outer peripheral edge 11, A closed lid 12 is disadvantageous for completing the heat storage block l at the point of use. deer However, the entire heat storage block l is still filled with heat storage filler 4 of relatively heavy material. Permanently bonded It is advantageous to use a closed lid. Note that if the lid 12 is permanently attached to the edge 11, If so, the heat storage filler 4 cannot be replaced subsequently.

The illustrated exemplary embodiment shows that the lid 12 has a solution, in particular in the form of a grip-clamp ring. A removable gripping device securely and releasably attaches to the outer edge 11 of the container 9, lO. It is distinguished for the reasons explained above by the fact that it is combined with

The heating element 5 is in a position where the thermal insulation space 6 is interrupted in any case by a heat storage block. It is convenient that it can be output from pack 1. Therefore, the lid 12 or Insulated conduit 2 for heating element 5 or for connection lead 24 of heating element 5 3 should be recommended. In particular, what I would like to recommend the most is , the conduit 23 for the heating element 5 allows the heating element 5 to be replaced without removing the lid 12. It is now possible to do this. Heat storage filler 4 actually causes problems during operation. Taking into account that scrubbing is rare, in the embodiment described above, the lid 1 2 is permanently and firmly connected to the upper peripheral edge 11 of the container 9, IO.

Various possibilities are known in the prior art for the composition of the heat storage filler 4. Ru. Heat storage bricks, known per se, are positionally completed heat storage blocks l Particularly suitable for The heat storage filler 4 consists of individual, preferably circular ring-shaped It is recommended to consist of heat storage bricks 25. In the illustrated exemplary embodiment four circular rings stacked on top of each other and housing a heating element 5 in the central opening; Such a heat storage brick 25, which is a shaped unit, generally has a flat surface. There is. However, in the illustrated exemplary embodiment, the internal volume defining the internal wall 3 is The base 14 of 310 is curved downward and outward. shown here In a preferred exemplary embodiment, the top surface is a flat, downwardly curved insulator. The layer 26 consists of the lowest heat storage brick 25 and the curved base 14 of the inner vessel IO. is placed between. This insulation layer 26 is present in another way and stabilizes the entire device. due to the weight of the heat storage brick 25 acting on the entire surface of the base 14 of the container IO. It distributes pressure and fills the free space, making full use of the entire device. insulation The materials used here for layer 26 and insulation layer 21 are known in the art and include For example, it is known as Proselite (ProseIiL). For example, Magnesite bricks (MagnesiLe bricks) ) can be considered for the heat storage brick 25.

FIG. 3 shows an example of an electric heat storage heater according to the invention. First of all, this diagram is an outer housing 27 having a certain depth, which is optimally about 20 centimeters; It shows. Inside the outer housing 27, depending on the depth of the outer housing 27, A plurality of heat storage blocks forming a substantially circular container shape with a cross section having a diameter determined by It is placed. a plurality of heat storage blocks l, in the illustrated exemplary embodiment heat storage vessels; Four heat storage blocks 1 are placed next to each other in the outer housing 27 according to the container. It is placed in the middle of the day. Inside the outer housing 27, the atmosphere is further sucked, and air is supplied from the periphery of the heat storage block l to the air outlet 30 via the air flow space 29. You can see the fan 28 for use. If the heat storage block l of the present invention is Once constructed, the heat dissipation of the heat storage heater can be achieved as a whole with the help of the individual getter devices 8. can be controlled very sensitively. Multiple thermal storage blocks for a common getter device 18 Is it possible in principle to connect the connecting pipe 7 of the lock l? I won't say more than that. The gas pressure in the insulation space 6 of all heat storage blocks l is controlled in the same way. This is especially true for vertically arranged, i.e. larger heat storage heaters. This would be considered in the case of a vertically arranged arrangement, respectively. adjacent thermal storage The connecting pipe 7 of block 1 can be connected in a particularly simple way to reduce wasted space. They can extend each other.

The heat storage heater according to the invention is similar to the heat storage heaters known from the prior art, namely: A heat storage block with a freely selectable width and a circular cross section. Advantages of a short depth thermal storage heater with the advantages mentioned above, which are advantageous in terms of installation It has the following.

Instead of the free-standing device shown in FIG. may be done. It has a wall support member that supports the heat storage block and a bottom plate. It is mounted when not in use. Invert the thermal storage block and install it on the wall and support members The covered casing, extending to the floor, serves as a cover. The vents are Located at the top and bottom of the thing. Casing is lacquered metal Conveniently it consists of a board. Lacquered metal plates are also suitable for the embodiment of Figure 3. used.

Figure 1 shows the use of thermal storage blocks to produce hot water and/or usable water. It also shows two further possibilities. Use either alternatively or simultaneously Two embodiments are illustrated in which this can be done. In the lower part of FIG. A helically wound tube 31 abuts and is eg soldered thereto. It is shown. The end 32 of this tube passes through the outer container 9 in a sealed manner. It constitutes the supply and discharge line. In the upper part of FIG. Tube 33 is shown firmly soldered there.

Apart from that shown in FIG. It is advantageous to accommodate a heat storage filler 4 that is not a heavy metal. heat storage filler 4 is a refractory brick, which is a refractory rock block material whose pores are filled with soluble salt; Consists of. This increases the heat storage capacity of the material. The heat insulating layers 21 and 26 are made of loose fibers. The insulation material in this case is composed of vermiculite.

The two containers 9, 1O are, as already mentioned, so that no welding of the bottom is necessary. , is formed by deep drawing. Therefore, it may be unnecessary in some cases, especially if the inner container This is advantageous for 10 high-temperature parts. Welded joints are omitted.

Because the two containers are tightly connected together, thermal expansion problems are at least two plays an important role in whether the containers reach different temperatures. this is, The thermal expansion of the inner high temperature container IO corresponds to the thermal expansion of the outer low temperature container 9. , is taken into account by selecting suitable materials.

The heat dissipation shielding wall 15 may also be formed by deep drawing. Under certain circumstances, the heat radiation shielding wall 15 , it is possible to spirally wrap aluminum foil in multiple layers, that is, to wrap aluminum foil with protrusions in multiple layers. more advantageous. In this case, the invention provides a slit extending perpendicular to the winding direction. Thermal insulation ensures that heat transfer along the helical turns is minimized. .

FIG. 1 shows a temperature sensor +1-34 that detects the temperature on the outer wall of the outer container 9. ing. When this temperature exceeds a predetermined value, in this case 150°C, the two containers 9.1 Immediately indicates that the insulation between 0 and 0 is not functioning correctly. And temperature sensor - turns on the switch that prevents new heat storage in the heat storage filler 4.

The heater 19 of the getter device 8 may have a multi-stage structure, in which case the heater 19 is controlled by at least a two-stage switch. This two-stage switch can be operated by. Instead of this, the amount of heat generated by the heater 19 can be changed continuously or It is also possible to control in multiple steps little by little, for example, in 1O steps. This purpose is This is achieved by an electronic control device activated by the temperature difference between the actual room temperature and a predetermined desired value. It will be done.

Fig, 7 Continuation of front page (81) Specified times EP (AT, BE, CH, DE.

DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE) , BG, CZ, HU, JP, KR, PL, SK, US

Claims (1)

[Claims] 1. An external wall (2) and an internal wall placed inside it with a slight gap from the external wall. a section wall (3); a heat storage filler (4); and a heat storage filler (4) disposed within the heat storage filler (4); an electrical heating element (5) connected to the exterior, said exterior wall (2) and said interior The walls (3) are connected to each other by a hermetic sealing method, and the said external wall (2) and the said The insulating space (6) surrounded by the internal wall (3) is substantially free of hydrogen gas or hydrogen gas. It is filled only with equivalent gas, and the gas pressure in the insulation space (6) is The electric current can be changed by means of a gas getter device (8) In a thermal storage block for a thermal storage heater, said external wall (2) is circular or is constituted by an outer container (9) with an oval cross section and the inner wall ( 3) an inner container (10) with a corresponding cross section of slightly smaller diameter and a slightly lower height; The container (9, 10) is hermetically sealed at the upper outer peripheral edge (11). The containers (9, 10) are connected to each other in a locking manner, and the upper open ends of the containers (9, 10) are connected to a lid (12). A thermal storage block characterized in that it is thermally well insulated by. 2. The base (13, 14) of the container (9, 10) is curved downwardly and outwardly. At least the inner container 10 is formed by deep drawing. The heat storage block according to claim 1. 3. The heat insulating space (6) has an appropriately matched diameter and a suitably matched height. at least one foil shaped or A heat dissipation shielding wall (15) deep-drawn into a plate shape, preferably a container shape, is configured, and More preferably, the outer wall (2) and the inner wall (3) are joined at the outer peripheral edge (11). or a protrusion for maintaining the necessary spacing. Item 2. The heat storage block according to item 1 or 2. 4. The heat dissipation shielding wall (15) is a multilayer spirally wound aluminum plate with protrusions. The heat storage block according to claim 3, characterized in that it is constructed from foil. 5. The multi-layer spirally wound heat dissipation shield wall (15) is arranged oppositely in the winding direction to reduce heat conduction. Claim 4, further comprising a vertical slit-shaped heat shielding means. thermal storage block. 6. The lid (12) itself has a double-walled structure with a heat-insulating space and a heat storage filler. A heat insulating layer (21) made of a fiber-free material is arranged between (4) and the lid (12). The heat storage block according to any one of claims 1 to 5, characterized in that: 7. The lid (12) can be welded, soldered, glued or otherwise attached to the container (9, 10) is firmly and permanently joined to the outer peripheral edge (11) of the The heat storage block according to any one of claims 1 to 6. 8. The lid (12) has a grip clamp clamp on the outer periphery (11) of the container (9, 10). firm but releasable by means of a ring-like releasable gripping device (22) The heat storage block according to any one of claims 1 to 6, characterized in that the heat storage block is coupled to a Ch. 9. The lid (12) is connected to the heating element (5) or the connecting lead wire (24) of the heating element (5). ), the insulated conduit (23) preferably having an insulated conduit (23) for The heating element (5) can now be replaced without removing the lid (12). The heat storage block according to any one of claims 1 to 8, characterized in that: 10. The heat storage filler (4) is not a heavy metal, and its shape and dimensions are similar to that of the inner container (10) According to any one of claims 1 to 9, the structure closely follows the wall of the thermal storage block. 11. Thermal storage filler (4) is an inorganic material with soluble pores to increase storage capacity. Claims 1 to 1 characterized in that it is constructed of filled fire-resistant baked brick material. 0. The heat storage block according to any one of 0. 12. The heat storage filler (4) is composed of independent annular heat storage blocks (25). has a smooth surface and is connected to the lowest heat storage block (25) and the inner volume. Between the curved base (14) of the container (10) is a flat top made of fiber-free material. Claims 1-1 characterized in that there is a downwardly curved thermal insulation layer (26) having a surface. 12. The heat storage block according to any one of 11. 13. On the inner wall of the outer container (9), both ends are sealed from the outer container (9) to the outside. at least one tube (31) for the second heat carrier being removed at The heat storage block according to any one of claims 1 to 12, characterized in that: rock. 14. On the external wall of the external container (9) there is at least one chip for the second heat carrier. Any one of claims 1 to 13, characterized in that a tube (33) is arranged. Thermal storage block described. 15. The containers (9, 10) are made of materials with different coefficients of thermal expansion and are so that the thermal expansion of the inner container (10) approximately matches the thermal expansion of the low temperature outer container (9). The heat storage block according to any one of claims 1 to 14, characterized in that: nine. 16. On the external wall of the external container (9), there is a 10) Prevents refilling of the thermal storage filler (4) as soon as a safe predetermined value is exceeded Any one of claims 1 to 15, characterized in that a temperature sensor is arranged to Thermal storage block described in. 17. The heater (19) of the getter device (8) has a multi-stage structure, and has at least Both are controlled by a two-stage switch that changes at room temperature. The heat storage block according to any one of claims 1 to 16, characterized in that: 18. The amount of heat generated by the heater (19) of the getter device (8) is calculated based on the actual value and desired value of the room temperature. Depending on the difference in The heat according to any one of claims 1 to 16, characterized in that the heat can be storage block. 19. an outer housing (27) of a predetermined depth; In an electric heat storage heater with a heat storage block (1) installed, The storage block (1) has a diameter determined by the depth of the external housing (27). Claims 1 to 18, wherein the cross section is configured to be approximately circular or elliptical. It is configured as described in any of the above, and includes a plurality of heat storage blocks (1). The outer housing (27) according to the desired heat storage capacity and the effective width of the outer housing (27) 27) Electric heat storage heaters, characterized in that they are arranged adjacent to each other in . 20. The thermal storage block (1) is mounted on a wall support frame without a base and is extending from the wall to the support frame and having an upper vent and a lower vent. covered by an inverted casing made of lacquered iron plate. 20. The electric heat storage heater of claim 19.