DD300560A5 - Plant for the recovery of energy loss - Google Patents

Abstract

In the system, a heat pump (1) is provided, which is followed by an electric water heater (11). All energy consumers (6, 7, 8) are supplied via the heat carrier rail (4). The waste heat pump (1) is operated via the waste water collection rail *, which collects the waste generated by the consumers (6, 7, 8) via plate heat exchanger (9) or exhaust air cooling register (10). Immediately after the heat pump (1) an electric water heater is switched, which is operated by a used as a block heating emergency generator (12). As a further heat storage a hot-water tank (14) and a waste water tank (15) are provided. In order to reduce the cost of primary energy even further, the energy of a ground probe system (13) is fed as an additional feed into the Abwaermesammelschiene (5). {Water-water heat pump; Buffer memory; Waermetraegerschiene; Abwaermesammelschiene; geothermal probe; Ecological damage}

Description

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Plant for the recovery of energy loss

The invention relates to a system for recovering the energy loss in a Gebäi'dekomplex having a water-water heat pump with upstream and downstream buffer memory, wherein a heat carrier rail is provided via which all energy consumers such as water heaters, heaters, in particular floor heating, etc., are fed, and that all of the consumers resulting waste heat via a waste heat manifold of the heat pump can be fed.

With this system known from AT-PS 386067, it has been possible for the first time to considerably reduce the expenditure of primary energy required for a building complex.

The cited above / nage according to the invention is characterized in that the energy of a ground probe system can be supplied as an additional feed into the Abwärmesammeischiene.

With the invention it is possible to extract heat from the ground without removing groundwater. Of course, to justify the mix of the invention, operating cost savings received the higher investment in the construction of the plant.

As is generally known, as little as possible should be intervened in nature. It is therefore easy to see that a permanent abstraction of groundwater does not have a very positive impact on the environment.

In a geothermal probe, the environmental impact is largely eliminated. The temperature influence of the soil as well as the groundwater is insignificant with the invention. Even at low brine supply temperatures, no dangers are to be expected. According to a further feature of the invention, a heat pump is disposed between the ground probe system and the waste heat manifold.

Since the geothermal heat pump was previously mainly used for hot water, had to be driven with condenser flow temperatures between 58 ⁰ C and 62 ° C. This resulted in a relatively poor performance of the heat pump. When used for raising the flow temperature of the entire heating system, this flow temperature of the geothermal heat pump on average can be significantly reduced (to 40 ° C to 45 ⁰ C). This results in a significant improvement in the figure of merit, so that in this mode of operation, the performance degradation due to the colder brine temperature is far outweighed.

According to one embodiment of the invention, ice-heat carrier equipment for the ground probe system is a glycol-water mixture, preferably in the ratio 20:80. With this equipment a year-round operation of the ground probe system is guaranteed.

The invention is based on a in the e ^! v.igon drawing figure illustrated embodiment explained in more detail. Referring to the drawing, a water-water heat pump 1 is provided in the plant for recovering the loss energy in a building complex. Before and after this heat pump 1 is ever a buffer 1.3. About the heat carrier rail 4 all energy consumers are supplied. About the Abwärmesammeischiene 5 is all accumulated by the consumers waste heat of the heat pump 1 zuführhar. The consumers may be, for example, the ventilation 6, the swimming pool supply 7 or the hot-water foot heating 8. The heat generated by diosen consumers waste heat is supplied via plate heat exchanger 9 or exhaust air cooling coil 10 of the waste heat collecting 5. Immediately after the heat pump 1, an electric water heater 11 is connected, which is operated by a used as Slockheizwerk emergency generator 12. This emergency generator 12 is used at low outside temperatures for caloric peak coverage.

As a heat storage for the heat carrier rail 4, a warm Biauchwasserbehälter 14 is used. As waste heat storage for the waste heat collecting bus 5 a waste water tank 15 is provided.

By means of the conferencing enabled by the control technology and connections and shutdowns of different performance groups is an optimal access to the existing energy reserves, which are given in the underfloor heating 8, the hot-water tank 14 and the waste water tank 15, possible. Only when these energy reserves are exhausted, the emergency generator 12 is put into operation.

In order to have even greater energy reserves, a ground probe system 13 is provided as an additional feed into the waste heat manifolds 5.

A heat pump (not shown) may be connected between the ground probe system 13 and the waste heat manifold 5.

Claims (3)

1. Plant for recovering the energy loss in a building complex, which has a water-water heat pump with upstream and downstream buffer memory, a heat carrier rail is provided, via which all energy consumers such as water heaters, heaters, in particular floor heating, etc., are fed, and that all waste heat from the consumers can be supplied to the heat pump via a waste heat manifold, characterized in that the energy of a ground probe system (13) can be supplied as an additional feed into the waste heat manifold (5). 2. Installation according to claim 1, characterized in that a heat pump is arranged between the ground probe system (13) and the waste heat collecting bus (5). 3. Plant according to claim 1 or 2, characterized in that a glycol-water Gomisch, preferably in the ratio 20:80, is provided as the heat transfer medium for the ground probe system (13).