DE2917129A1 - Water heat storage process - using accumulator charged with medium from inside to outside - Google Patents

Abstract

The process stores heat energy without loss in an accumulator, and extracts it from the latter using a flowing heat-transfer medium in air or liquid form. The medium is charged via the piping system from inside to outside. Heat loss can be prevented by a sphere of foam material formed on site round an inner and an outer piping system, and a heat-attracting medium can be inserted between the pipes on the inner system.

Description

Heinz Sauff
Quiet angle 2

2391 Handewitt

Process for loss-free storage of thermal energy and its extraction from the storage, as well as the Principle for carrying out the procedure

The invention relates to a method for storing thermal energy and extracting the stored thermal energy from a heat accumulator with the help of a flowing heat transfer medium that is both liquid and can also be air-shaped

In the case of storage, the medium flows through in one closed circuit the energy source and the heat storage and in the case of withdrawal the consumer and the Heat storage

The invention also relates to the conception for carrying out the method,

In previously known methods of this type, it is used as a heat storage mass also water, sand and stone material. The energy is supplied and discharged again by means of pumps Even with thick insulating layers, there are migration losses from the inside to the outside. Even with the known method C patent application 27 oo 822) the heat loss is quite li © ch lind due to the flow through the heat accumulator τοπ Groundwater is very difficult to use as a heat store »

03004S / 0360

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The object of the invention is therefore to construct a heat accumulator with as little loss as possible in the one flow through of groundwater is turned off, but in turn that around the reservoir as flowing groundwater

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To use heat transfer medium.

The object is achieved according to the invention in that two rigid polyurethane foam half-shells at the installation site continuously produced on a rotating disc in any desired size. An airtight one The envelope is inflated in a semicircle by a fan.

In the first pass, this envelope is used with a release agent is sprayed on, a thin layer of foam is sprayed on. Then it will run from bottom to top a pipe wound up close together and this time surrounded by a thick foam jacket. After it has hardened, a second pipe system is wound as described above and a thin one Foam layer fixed. After the fixation, a waterproof skin is sprayed on. The fan is switched off. As a result, the inner shell collapses and the half-shell can be removed from the turntable be taken and lowered into the previously prepared soil.

Now the second half-shell is manufactured according to the same principle, except that one at the top is used to fill the Sphere sufficient opening is cut · The two hemispheres are now through a reactive Mixture glued together so that they enter into a seamless connection. The same happens after replenishment of the memory with the upper part.

The pit can now be filled up to the filling opening,

030045/0360

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Two pipe systems are now wound in layers into the sphere, one as a round bead and one as a pipe system lying around the core. In the ^ outer pipe system can be used as storage material between the pipes Soil are used, on the other hand, in the core, if possible, a material that contains a lot of thermal energy can absorb the surrounding soil.

The charging of the thermal energy storage takes place in the pipe system that lies around the core, so that the thermal energy not only migrates its way through the thermal insulation to the outside, but into the interior of the core.

The heat energy is extracted via the pipe system in the core and via the pipe system wound on the inside in the thermal insulation or via one of the two pipe systems, there should be further migration losses from the inside to the outside occur, they are absorbed by the pipe system located in the outer skin of the thermal insulation. In addition, heat energy for the use of a Be removed from the heat pump.

The half-shells can be produced in any size and the wall thickness in any thickness. The continuous production of the half-shells and the winding up of the two pipe systems is a cost-effective one Production possible.

The invention is explained using the illustrated exemplary embodiments.

In the figure 1, the entire thermal envelope of the memory is shown as a flat structure.

In Figure 2 you can see the course of the four provided Pipe systems.

03U045 / 0360

29-129

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As FIG. 1 shows, the two half-shells 2 can be seen and 2a, as well as the cut tip 2b required to fill the reservoir.

In points 4 and 4a, the entire surface is glued using a reactive mixture.

Point 3 shows the outer skin on which the waterproof layer is applied.

Point 5 shows the pipe system lying outside in the thermal insulation, which is used to collect any that may still occur Thermal energy migrations are used.

Point 6 shows the pipe system lying inside the thermal insulation through the one with the one in point 11 in the core Pipe system the thermal energy is withdrawn.

Point 7 shows the entire thermal insulation.

Point 9 shows the storage material consisting, for example, of soil

Point 8 shows the pipe system lying in the material.

Point Io shows the very warmth in the core Storage material

030045/0360

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Claims (8)

Patent to s ρ r ü c h e Method for storing thermal energy in a heat storage unit and extracting it from this storage unit using a flowing heat transfer medium, which can be air or liquid. In the case of storage, the medium flows through the energy source and the storage unit and when it is withdrawn the store and the consumer, characterized in that the medium flows through the pipeline system 8 from, the inner edge is charged to the outside. 2. Heat accumulator for performing the method according to claim 1, characterized in that the heat profile is protected from heat loss by a ball foamed at the construction site. 3. heat accumulator for performing the method according to claim 1 and 2, characterized in that in the Foam ball one inside and one outside The pipe system has also been foamed in by means of which the heat losses are completely avoided. 4. heat accumulator for performing the Verfahrend according to claim 1, 2 and 3, characterized in that between the core pipeline system 11, a heat-absorbing storage medium is introduced, the large quantities which can absorb thermal energy from the pipeline system 8. 030045/0360 5. heat accumulator for performing the method according to claim 1 and 4, characterized in that the Thermal energy is taken from 6 and 11 at the same time, or from one of the two tubes - 1pipe systems. 6. heat accumulator for performing the method according to claim 2, characterized in that on the outer skin a water-impermeable liquid is sprayed onto the ball. 7. heat accumulator for carrying out the method according to claim 3, characterized in that with the external Pipe system to the surrounding soil, or the groundwater that flows around the sphere, by means of a heat pump Heat energy can be taken 8. Heat accumulator to carry out the process according to Claim 3, characterized in that in the pipeline system · 6 the temperature by 1 degree above the temperature in the storage medium 9 is maintained. This ensures that no Heat losses can occur. The heat losses that could migrate to the outside through the pipe system 6 are caught by the pipe system 5. 030045/0360