DE102009025672A1 - System for heating e.g. domestic water in single family houses, has heat accumulator and fuel gas that is guided through fuel gas line in flow direction before and after solid particle entering into accumulator and fire-place, respectively - Google Patents

Abstract

The system has a heat accumulator (2) that is provided with a solid particle (20) in a flow direction before a buffer memory (32) and after a distributor (34). The heat accumulator is connected to a fuel gas control system (1), and fuel gas (10) is guided from a burner (60) through a fuel gas line (101) in the flow direction before and after the solid particle entering into the heat accumulator and a fire-place (12), respectively. The fuel gas control system is connected at a combustion chamber (61) of the burner of a heating system (6). An independent claim is also included for a method for heating hot water and/or domestic water in a residential building.

Description

The The invention relates to a system for heating Heating and / or service water for a residential building through the use of sensitive and latent residual heat energy the flue gas of a burner of a heating system of the residential building. The system has an on the combustion chamber of the burner of the heating system connectable flue gas control system, a heat storage with at least one solids bed and at least a plenum, cavity and reservoir and a cooling system with at least one connected to a cooling water pipe Distributor for cooling water for spraying the solids bed and for transferring Heat energy up. It also has a buffer memory for picking up and cooling the cooling water.

It is already a facility for cleaning the flue gases with a liquid and for utilizing the thermal smoke gas energy to heat the fresh air supply to the burner in the DE 201 01 585 U1 described. The flue gas is cooled in a washing unit under direct contact with the cleaning liquid and condenses partially. For neutralization, the cleaning fluid flows through a basic granules in a basket-like receptacle that can be refilled.

In the EP 0 288 695 A2 describes a boiler with two heat exchangers, wherein the flue gas with one of the two heat exchangers heat is removed until it condenses.

Another way to cool flue gas in direct contact with a liquid coolant is in the DE 10 2007 020 145 A1 described. Here, the flue gas is passed in cocurrent with the sprayed coolant and thereby condensed. The coolant is removed from the heat energy in a heat exchanger.

To starts all known in the relevant prior art devices the burner, once to cover heat demand in the heating system is. To do this, the burner must start several times a day to to maintain the setpoint temperature in the heating system. When starting the Brenners are caused by unfavorable combustion conditions above average a lot of nitrogen oxides, carbon monoxide and soot, which is not very environmentally friendly is and also an increased wear and a increased contamination of the burner.

Of the Invention is the object of a heating system for Form and arrange single-family dwellings in such a way, that the number of starts of the burner within a certain cycle is reduced.

The basic idea it is this, preferably at high heat demand in daytime operation, the high temperature level of the combustion gases one Burner flame and low heat demand, preferably at night operation, the low temperature level of the flue gas without Use of the burner to remove the system.

Solved The object is achieved according to the invention in that in a flow direction after the distributor and before the Buffer at least one connectable to the flue gas control system Tank-shaped heat storage consisting of a Solid bed, preferably made of glass granules, provided is and the flue gas from the burner via a flue gas line in the flow direction through the solids bed the heat accumulator and in the flow direction the solid bed out of the heat storage out into a chimney is conductive.

Thereby is achieved that the heat energy of the compared to the combustion gas produced in the combustion gas colder flue gas initially saved and within a certain period of time a point in time low heat demand of the solid bed can be removed. The amount of heat stored from the flue gas is sufficient to heat without the burner to ensure the necessary heat supply. During cooling of the flue gas in the solids bed This produces a condensate that acts as cooling water within a discharge cycle serves to transfer the heat.

The Flue gas is stored in the heat storage tank through the solids bed passed through and simultaneously through the solids bed cooled. The solid bed stores the heat energy of the flue gas.

It is advantageous for this purpose also that the system comprises a discharge system consisting of several flue gas ducts and a gas-water heat exchanger and a plurality of flue gas flaps, wherein by a provided in a flue gas duct fan and the flue gas ducts connected to the flue gas ducts a flow circuit against the flow direction through the solids bed and can be generated by the gas-water heat exchanger and the gas-water heat exchanger is connected to the water side of the heating system. At low heat demand, the solids bed is thus cooled by a temperature of about 150 ° C to about 90 ° C and dissipated the heat energy through the gas-water heat exchanger to the existing heating system through the flow circuit formed with the existing flue gas. Depending on the setting of the mass flows in the gas-water heat exchanger can in This first period a sufficient for a lowering operation flow temperature for the heating system can be generated.

For the flow circuit, it is advantageous that the flow circuit at least by passing as a bypass past the fan Flue gas pipe and the flue gas pipe opening into the heat accumulator and the leading from the heat storage flue gas line and leading into the gas-water heat exchanger Flue gas line and the gas-water heat exchanger and the flue gas line connecting flue gas line is formed. authoritative is a flow circuit of flue gas after heating through the bed of solids on the shortest Routes in the gas-water heat exchanger is passed.

Further it is advantageous that in the heat storage in the flow direction before the solid bed a collecting space for the flue gas and in the flow direction after the solid bed a reservoir for the cooling water and between the solids bed and the reservoir a cavity for the Flue gas are provided. This ensures that in the heat storage a flow circuit for the flue gas can be realized is and through the plenum a buffer for the necessary Volume of cooling water is formed.

For a second period of heat extraction it is beneficial that the cooling system has a first heat exchanger and the cooling water via a cooling water pipe from the first reservoir into the first heat exchanger and over a cooling water line from the first heat exchanger in the Collecting space in the heat storage is conductive, the first heat exchanger is connected to the heating system. With the first heat exchanger is within the second Period a first process step of heat extraction is possible, which is at a lower temperature level compared to the first period based.

For the second period, it is advantageously provided that in Heat storage in the flow direction to the plenum an intermediate floor is provided for the solid bed, through the flow direction before the further solids bed a chamber is formed, and in the chamber a second manifold intended for cooling water, which is connected to the cooling water pipe connected. This allows the flow direction lower part of the solids bed separately from the upper part the solid bed to the lowest possible temperature level be cooled.

From of particular importance for the present invention, that in the flow direction to the heat storage a buffer is provided, inter alia, as a heat exchanger is designed for service water. In the cache is the heat accumulator created during a heating cycle and serving as cooling water condensate introduced, which arises in vapor form during the firing cycle. The buffer memory enables a second process step of heat removal, which in turn is possible at a lower temperature level is considered the heat extraction in the first process stage. By This reservoir of about 500 liters in the buffer can be a temporal buffering of heat removal can be achieved.

in the Connection with the training according to the invention and arrangement, it is advantageous that the volume of the buffer corresponds to the volume of cooling water in the reservoir and two spaced on the buffer memory in the flow direction are provided from each other arranged extraction lines. That after the first process stage cooled in the heat storage Cooling water is completely in the buffer tank led to in the second process stage and in another Process step continue to remove heat. This is in the buffer memory Cooling water is still included in a previous cycle and is introduced by filling from above through the new cooling water pushed out down from the buffer memory. Through the two stacked sampling lines This can be in the upper part of the buffer and opposite cooler water in the lower part Cooling water can be taken separately.

Regarding the cleaning of the flue gas, it is advantageous that a flue gas filter is provided, which is connected to the flue gas line, and the flue gas filter a filter body and a cleaning device for the filter body, wherein the cleaning device for cleaning the filter body with cooling water is supplied from the cooling system. The cleaning takes place with cooling water from the reservoir of the heat storage. The after cleaning contaminated cooling water is discharged into the sewage system of the building.

Furthermore it is advantageous that the cooling system at least one second heat exchanger for heating combustion air and / or room air and the second heat exchanger connected to the buffer memory.

Thereby is achieved by the flue gas after cooling through the cooling water in a third stage through the process from the outside incoming combustion air for the burner or by the circulating room air even further cooled can be.

Further It is advantageous that the cooling system one in the flow direction having disposed after the buffer memory discharge line, the can be connected to a sewage system. The cooling water accumulates with the condensable and solid, not filterable Components of the flue gas in the lower part of the buffer memory so that the volume flow in the cooling system decreases in certain cycles must become. Furthermore, the buffer needs to be reissued every cycle be charged with cooling water.

there it is advantageous that the solids bed chemical and at least partially thermally stable and predominantly formed from glass and / or ceramic and / or metal-containing solid particles is. Especially in the inlet region of the flue gas is a thermal Stability necessary, since here the temperature fluctuations are the largest.

After all it is advantageous that the solid particles are symmetrical or formed asymmetrically with a grain diameter between 2 and 10 mm are the same or different within a batch Have grain diameter. The solids can thus optimal flow and heat conduction conditions be adjusted. The additional in the different periods usable amount of heat, which so far unused with the flue gas over the chimney was removed, covers the heat needs of the building with and has the consequence that the burner starts be reduced.

For Building with significantly reduced due to the construction Heat demand, to which new buildings or energetically refurbished Count buildings, offers the above Rauchgasnutzanlage the supplement with a combustion chamber at.

Advantageous It is also the fact that the burner with combustion chamber component the plant is and the combustion chamber a primary heat exchanger and a flue gas flap, wherein via the flue gas flap the mass flow of the flue gas indirectly through the primary heat exchanger and can be varied and regulated directly in the flue gas line. The heat output of the burner can thereby in needs-covering Amount to be given to the heating system. The difference between im Burner generated amount of heat and in the heating system required amount of heat is through the primary heat exchanger Passed flue gas directly into the solids bed issued. To reduce the high flue gas temperature at the burner outlet of about 900 ° C is cooled flue gas over a control flap mixed, whereby the resulting mixing temperature about 350 ° C is. Due to the variable usage the constant heat output of the burner is achieved, that the burner only needs to be operated once per cycle. The for the period of the burner standstill of the building required amount of heat is from the solid bed covered in the above-described operation of the periods.

For sufficient heat storage in the solid bed provides a precalculated needs assessment based on the Outside temperature in the corresponding control system. This heating concept reduces pollutant emissions and burner wear. In addition, a smaller and thus much cheaper Burner sufficient.

Advantageous is also a process in which a large part of the solid bed in the heat storage within a cycle immediately through the flue gas from a cold temperature level T1 to a hot one Temperature level T2 heated and then the heat energy the solid bed with the burner switched off in one first period through a flow circuit with in the system circulating flue gas and in a subsequent to the first period second period by cooling water from the hot Temperature level T2 cooled again to the cold temperature level T1 becomes.

With This method is to achieve that the heat of the circulating flue gas in the flow circuit through the gas-water heat exchanger to the heating system and the heat of the cooling water over at least a first process step to the heating system and a time transferred downstream process stage to the process water becomes.

For this it is advantageous that the cooling water after the first Process stage taken from the reservoir in the buffer memory and thereby the cooler cooling water in the buffer tank over two Sampling lines removed from the buffer and for cooling purposes the solids bed from the middle sampling line of the buffer tank via the upper distributor and subsequently from the lower sampling line via the lower distributor is fed evenly distributed. By designed as a heat exchanger buffer memory can be achieved that the process water to a temperature between 40 ° C and 50 ° C preheated.

It is also advantageous that the heat of the cooling water in the buffer memory via at least one third process stage transferred to the combustion air and / or to the room air becomes. The conditions depend on the temperature the outside air or room air. Depending on the temperature level of the Room air, cold domestic water and outdoor air are temperatures the flue gas of less than 15 ° C possible.

Also it is advantageous that the solids fill over Cool one or both distributors with the cooling water is, in the second process stage and / or in another Process stage the heat was withdrawn.

in principle It is advantageous that the cycle variable in its duration is and preferably comprises 24 hours. In the heat storage is preferably a mass of 2 tons of glass as a solid bed brought in. This mass is sufficient to the flue gas heat to save a burner for a two-family house, the the solid bed in the basic version with an inventory combustion chamber for approx. 8 to 10 hours, in the option version with new combustion chamber, Primary heat exchanger and flue gas flap for 10 to 20 hours, depending on the outside temperature on temperature holds. The stored energy can be sufficient to meet the needs and to bridge the aforementioned storage times, without the need for an additional burner power.

at Extraordinary heat demand can be at all periods of memory usage and its associated Process stages of the burner are switched on.

Further Advantages and details of the invention are in the claims and explained in the description and illustrated in the figures. It shows:

1 a schematic representation of a plant with solids for upgrading an existing heating system, the temperature level of the heating medium has no effect on the flue gas condensation;

2 a schematic representation of a plant with solids bed and combustion chamber, primary heat exchanger and flue gas flap for creating a heating system with reduced heat demand of a new or energetically renovated building.

In the 1 and 2 is a system for heat storage of the exhaust heat of a in a flue gas control system 1 guided flue gas 10 shown schematically. Such a system is connected to an existing heating system 6 consisting of burner 60 and primary heat exchanger 66 or a new heating system 6 consisting of burner 60 , Combustion chamber 61 , Primary heat exchanger 66 and flue gas flap 63 connected. For this purpose, the system has a flue gas control system 1 and a cooling system 3 for the flue gas 10 on. The flue gas control system 1 is via a flue gas line 101 at a flue gas outlet 64 the combustion chamber and a flue gas line 103 by a fireplace 12 connected.

Basically, it is provided, a heat storage device described in more detail below 2 with a solids bed 20 within a cycle of for example 24 hours and starting from a cold operating state to charge or heat up and to cool down or discharge. This during the cooling of the flue gas 10 at the solids bed 20 Resulting condensate is in a period during the heating cycle as cooling water 30 for cooling the solids bed 20 and thus used for heat transfer.

The heat storage 2 is during a heating or charging phase within the cycle by the burner 60 generated hot and in the primary heat exchanger 66 Pre-cooled flue gas at approx. 150 to 180 ° C 10 charged. For this purpose, the flue gas 10 over the flue gas line 101 in the heat storage 2 initiated. During this heating or charging phase is simultaneously the heating system with the radiators 67 and if necessary, the heat exchanger 65 of the domestic water heater 68 heated by the power of the burner flame.

In the heat storage 2 is a collection room 22 for the flue gas 10 provided in the the flue gas 10 is initiated. From the collection room 22 the flue gas is turned off 10 through the solids bed 20 through into a cavity 23 and from there via a flue gas line 102 to the fireplace 12 directed. The solids bed 20 is continuously heated in the flow direction S from about 20 ° C to about 160 ° C and thereby the flue gas 10 cooled to about 20 ° C with the formation of condensate. This in the solids bed 20 Condensate formed at a later time than cooling water 30 for further unloading the solids bed 20 used and until then in one below the solids bed 20 provided reservoir 21 intercepted, neutralized and stored. In a conventional system for a 1-2 family house, up to 30 liters of condensate are produced during a combustion cycle of 24 hours, depending on the fuel and the heat demand.

When the solid packing 20 wholly or mostly by the flue gas 10 is charged, contrary to the flow direction S is a flow circuit of flue gas 10 generated by the solid bed 20 from about 160 ° C to about 90 ° C cools. For this purpose, a gas-water heat exchanger 113 provided, the water side to the heating system 6 connected. The flow in the flow circuit is through a in the flue gas line 102 provided fan 13 generated. The flow circuit is directed against the usual flow direction S, so that by the hard material dividend 20 heated flue gas 10 with the highest possible temperature level of up to approx. 150 ° C via the flue gas line 101 and a flue gas line 111 in the gas-water heat exchanger 113 can be directed. From the gas-water heat exchanger 113 is the cooled to about 60 ° C flue gas 10 via a flue gas line 112 back into the flue gas pipe 102 directed. So that's the exhaust gas flow of the flue gas 10 in the flow direction S existing piping system can also be used for the flow circuit is on the flue gas line 102 a flue gas line 110 provided by the use of several flue gas flaps 14 a return of the cooled flue gas 10 over the flue gas line 102 in the cavity 23 allowed.

In a second period becomes the solids bed 20 with the help of the cooling system 3 and the cooling water 30 cooled in several process stages to a temperature of about 20 ° C to about 10 ° C.

In this second period, a first process stage is provided, in which the solid bed 20 through the cooling water 30 is cooled from about 90 ° C to about 60 ° C. This is done in the reservoir 21 located cooling water 30 over two distributors 34 . 35 on the solids bed 20 sprayed and the heat through the cooling water 30 in a first heat exchanger 31 on the heating system 6 transfer.

For a second process stage, this is stored in the heat storage 2 existing cooling water 30 via one to the cooling water pipe 301 subsequent cooling water pipe 320 in a direction of flow S to the heat storage 2 arranged buffer memory 32 directed. The volume of the buffer 32 corresponds approximately to the volume of cooling water 30 in the reservoir 21 , In the cache 32 is still cooling water at this time 30 from the previous cycle, relative to that in the reservoir 21 located cooling water 30 is colder and has temperature layers of about 30 ° C to 40 ° C in the upper part and about 20 ° C to 10 ° C in the lower part of the buffer memory 32 having. The new warm cooling water 30 comes with the old cold cooling water 30 redeployed. During the shift, the upper part of the solids bed becomes 20 with relatively warm cooling water 30 and the lower part of the solids bed 20 with relatively cold cooling water 30 sprayed. These are in the solids bed 20 an intermediate floor 24 and an upper distributor 34 and in the flow direction S to the intermediate floor 24 arranged second distributor 35 intended. Through the intermediate floor 24 is below the false floor 24 a chamber 25 for the second distributor 35 educated.

Through the buffer memory 32 becomes a service water pipe 50 led, so that in the second process stage Brauchwas ser 5 in a quasi-DC principle by designed as a heat exchanger buffer memory 32 from about 10 ° C to up to 50 ° C can be preheated.

Parallel to the second process stage, the cooling water is used in a third process stage 30 via a water-air-guided second heat exchanger 33 Heat extracted to supply air to the burner 60 preheat. A further increase in efficiency of the system according to the invention can be achieved if the cooling water 30 from the second heat exchanger 33 in a fourth process stage through a third heat exchanger 330 in which the room air circulating in the residential building is heated.

A conventional existing plant 6 as they are in 1 shown starts several times a day, especially when there is a high heat demand. For this the burner switches 60 several times a day for several minutes. In this time will be with the flue gas 10 at the flue gas outlet 64 dissipated heat energy mostly in the heat storage 2 in the solids bed 20 saved.

In a phase of lower heat demand, such as at night, in the solid bed 20 stored heat in the above-described periods and process stages to the heating system 6 and to the service water 5 and the room air delivered, with both the domestic water heating and the room air heating are effective during the daytime operation.

In the in 2 shown plant is a burner 60 provided, which is based on a principle of continuous storage of flue gas heat. This burner 60 is much smaller and less efficient than the one after 1 provided for in existing plants. The water burner 60 Ideally, it burns continuously over a predicted demand period based on the outside temperature, where high heat demand is required within the cycle, such as during the day. This covers the burner 60 the respective heat demand of the heating system 6 from.

During the continuous heating process, the solids bed 20 in the heat storage 2 more or less by the flue gas 10 heated and charged in the flow direction S. Depending on how much heating demand there is in the heating system, a flue gas flap is used 63 in the combustion chamber 61 the mass flow of the flue gas 10 both through the primary heat exchanger 66 in the combustion chamber 61 as well as the flue gas outlet 64 and the flue gas line 101 in the heat storage 2 regulated. The at the primary heat exchanger 66 Passed flue gas 10 has, as it is not Pre-cooled, a temperature of about 900 ° C. For reasons of fire protection and material conservation, the temperature of the hot combustion gas 10 by mixing cold flue gas 10 over the flue gas line 103 cooled to about 350 ° C and in the heat storage 2 or in the solids bed 20 directed.

After completion of the continuous heating process can parallel to the first period of heat storage using the gas-water heat exchanger 113 in the components combustion chamber 61 , Flue gas line 101 and flue gas filters 15 stored thermal energy by opening the shut-off valve located on the burner and by dosed opening in the flue gas line 101 located flue gas flap 14 removed and used for heating purposes.

According to the in 1 described principle is the heat storage 2 in a phase of low heat demand provided within the 24-hour cycle, such as discharging at night. For this purpose, the solids bed 20 using the in period 1 described heat removal by means of a gas-water heat exchanger 113 and in the period 2 described process stages 1 to 4 with the aid of as cooling water 30 condensing heat taken from the heat and the heating system 6 and the service water and the room and combustion air supplied.

Before the cooling water 30 over a cooling water pipe 301 in the cache 32 is conducted using a dosing system 7 a means is provided by which the pH is increased to a range of 6.5. Through the dosing system 7 is preferably supplied sodium hydroxide.

By the supply of flue gas 10 with all its condensable and solid components to the cooling water 30 takes the volume of cooling water 30 continuously too. The excess cooling water 30 is used to clean the flue gas filter 15 used and then via a drain line 303 as wastewater. To prevent the plant pollution, the solid components of the combustion are largely through a flue gas filter 15 caught in the flue gas pipe 101 is provided. The flue gas filter 15 has a filter body for this purpose 150 on, through which the flue gas 10 flows through it. The filter body 150 is discontinuously cleaned at the end of the first period of heat storage use. For this purpose, the filter body 150 through a cleaning device 151 with cooling water 30 sprayed.

Further flow and control technology necessary and meaningful processes recognizes the expert with the help of the list of reference numerals based on 1 and 2 ,

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 20101585 U1 [0002]
• - EP 0288695 A2 [0003]
• DE 102007020145 A1 [0004]

Claims (23)

Plant for heating heating water ( 69 ) and / or service water ( 5 ) for a residential building by using the sensitive and latent residual heat energy of a flue gas ( 10 ) of a burner ( 60 ) a heating system ( 6 ) of the dwelling, the installation a) being connected to a combustion chamber ( 61 ) of the burner ( 60 ) of the heating system ( 6 ) connectable flue gas control system ( 1 ) and b) a cooling system ( 3 ) with at least one to a cooling water line ( 302 ) connected distributor ( 34 ) for cooling water ( 30 ) for spraying a packed bed of solids ( 20 ) and for transferring heat energy and c) a buffer memory ( 32 ) for receiving and cooling cooling water ( 30 ), characterized in that d) in a flow direction (S) after the distributor ( 34 ) and in front of the buffer memory ( 32 ) at least one to the flue gas control system ( 1 ) connectable kesselelförmiger heat storage ( 2 ) with a solids bed ( 20 ) is provided and the flue gas ( 10 ) from the burner ( 60 ) via a flue gas line ( 101 ) in the flow direction (S) before the solid bed ( 20 ) in the heat storage ( 2 ) and in the flow direction (S) after the solid bed ( 20 ) from the heat storage ( 2 ) out into a fireplace ( 12 ) is conductive. Plant according to claim 1, characterized in that the plant is a discharge system ( 11 ) consisting of several flue gas ducts ( 110 - 112 ) and a gas-water heat exchanger ( 113 ) as well as several flue gas flaps ( 14 ), wherein by a in a flue gas line ( 102 ) provided fan ( 13 ) and the flue gas pipes ( 101 . 102 ) connected flue gas lines ( 110 - 112 ) a flow circuit counter to the flow direction (S) through the solids bed ( 20 ) and by the gas-water heat exchanger ( 113 ) and the gas-water heat exchanger ( 113 ) on the water side to the heating system ( 6 ) connected. Plant according to claim 2, characterized in that the flow circuit at least by the bypass on the fan ( 13 ) passing leading flue gas line ( 110 ) and in the heat storage ( 2 ) flue gas line ( 102 ) and from the heat storage ( 2 ) leading flue gas line ( 101 ) and in the gas-water heat exchanger ( 113 ) leading flue gas line ( 111 ) and the gas blower heat exchanger ( 113 ) and the flue gas line ( 102 ) connecting flue gas line ( 112 ) is formed. Installation according to one of the preceding claims, characterized in that in the heat storage ( 2 ) in the flow direction (S) before the solid bed ( 20 ) a collection room ( 22 ) for the flue gas ( 10 ) and in the flow direction (S) after the solid bed ( 20 ) a reservoir ( 21 ) for the cooling water ( 30 ) and between the solids bed ( 20 ) and the reservoir ( 21 ) a cavity ( 23 ) for the flue gas ( 10 ) are provided. Installation according to one of the preceding claims, characterized in that the cooling system ( 3 ) a first heat exchanger ( 31 ) and the cooling water ( 30 ) via a cooling water line ( 301 ) from the first reservoir ( 21 ) in the first heat exchanger ( 31 ) and via a cooling water line ( 302 ) from the first heat exchanger ( 31 ) into the collection room ( 22 ) in the heat storage ( 2 ) is conductive, wherein the first heat exchanger ( 31 ) at the heating system ( 6 ) connected. Installation according to one of the preceding claims, characterized in that in the heat storage ( 2 ) in the flow direction (S) after the collecting space ( 22 ) an intermediate floor ( 24 ) for the solid packing ( 20 ) is provided, through which in the flow direction (S) before the further solids bed ( 20 ) a chamber ( 25 ) and in the chamber ( 25 ) a second distributor ( 35 ) for cooling water ( 30 ) provided to the cooling water line ( 302 ) connected. Installation according to one of the preceding claims, characterized in that in the flow direction (S) after the heat storage ( 2 ) a buffer memory ( 32 ), which is used as a heat exchanger for process water ( 5 ) is trained. Installation according to claim 7, characterized in that the volume of the buffer memory ( 32 ) the volume of cooling water ( 30 ) in the reservoir ( 21 ) and at the buffer memory ( 32 ) two in the flow direction (S) spaced from each other arranged removal lines ( 321 . 322 ) are provided. Installation according to one of the preceding claims, characterized in that a flue gas filter ( 15 ) is provided to the flue gas line ( 101 ), and the flue gas filter ( 15 ) a filter body ( 150 ) and a cleaning device ( 151 ) for the filter body ( 150 ), wherein the cleaning device ( 151 ) for cleaning the filter body ( 150 ) with cooling water ( 30 ) from the cooling system ( 3 ) is supplied. Installation according to one of claims 7 to 9, characterized in that the cooling system ( 3 ) at least one second heat exchanger ( 33 ) for heating combustion air ( 62 ) and / or room air and the second heat exchanger ( 33 ) to the buffer memory ( 32 ) connected. Installation according to one of claims 7 to 10, characterized in that the cooling system ( 3 ) one in the flow direction (S) after the buffer memory ( 32 ) arranged drain line ( 303 ), which is connectable to a sewer system. Installation according to one of the preceding claims, characterized in that the solids bed ( 20 ) is formed chemically and at least partially thermally stable and predominantly of glass and / or ceramic and / or metal-containing solid particles. Plant according to claim 12, characterized in that that the solid particles are symmetrical or asymmetrical with a Grain diameters between 2 and 10 mm are formed and within a bed of the same or different grain diameter exhibit. Installation according to one of the preceding claims, characterized in that the burner ( 60 ) with combustion chamber ( 61 ) Is part of the plant and the combustion chamber ( 61 ) a primary heat exchanger ( 66 ) and a flue gas flap ( 63 ), wherein via the flue gas steering flap ( 63 ) the mass flow of the flue gas ( 10 ) indirectly through the primary heat exchanger ( 66 ) and directly into the flue gas line ( 101 ) can be varied and regulated. System consisting of a plant according to one of the preceding claims 1 to 13 and a heating system ( 6 ) with a burner system ( 60 ), several radiators ( 67 ) and a domestic water heater ( 68 ). System consisting of a system according to one of the preceding claims 1 to 14 and a heating system ( 6 ) with several radiators ( 67 ) and a domestic water heater ( 68 ). Method for operating a plant according to one of claims 1 to 16, characterized in that at least a part of the solid bed ( 20 ) in the heat storage ( 2 ) within a cycle directly through the flue gas ( 10 ) heated from a cold temperature level T1 to a hot temperature level T2 and then the heat energy of the solid bed ( 20 ) with the burner switched off ( 60 ) in a first period by a flow circuit with flue gas ( 10 ) and in a second period following the first period by cooling water ( 30 ) is cooled from the hot temperature level T2 back to the cold temperature level T1. A method according to claim 17, characterized in that the heat of the solid bed ( 20 ) in the flow circuit through the gas-water heat exchanger ( 113 ) to the heating system ( 6 ) and the heat of the cooling water ( 30 ) to the heating system via at least one first process stage ( 6 ) and a temporally downstream second process stage to the process water ( 5 ) is transmitted. A method according to claim 17 or 18, characterized in that the cooling water ( 30 ) after the first stage of the process from the reservoir ( 21 ) in the buffer memory ( 32 ) and in the buffer memory ( 32 ) located cooler cooling water ( 30 ) via a sampling line ( 321 . 322 ) the buffer memory ( 32 ) is taken. A method according to claim 17 to 19, characterized in that the heat of the cooling water ( 30 ) in the buffer memory ( 32 ) via at least one third process stage to the combustion air ( 62 ) and / or transferred to the room air. Process according to Claims 17 to 19, characterized in that the solids bed ( 20 ) via one or both distributors ( 34 . 35 ) with the cooling water ( 30 ) is cooled, the heat was removed in the second process stage and / or in a further process stage. Method according to claims 17 to 20, characterized that the cycle is variably adjustable in duration and preferred Includes 24 hours. Method according to one of the preceding claims 17 to 20, characterized in that the burner ( 60 ) burns continuously within a cycle only once as long as calculated by a predicted demand determination based on the outside temperature.