FI110542B - Heat recovery and storage system - Google Patents

Description

110542 The present invention relates to a system for recovering and storing thermal energy. The invention relates to a system for recovering and storing thermal energy.

Storage of process steam used by industry would be necessary to eliminate the additional investment required for the reliability of steam delivery and the dynamic fluctuations of consumption. However, the vapor cannot be significantly stored due to the low density of the vapor. The vapor should be stored in pressure vessels, which are priced high even with small storage volumes.

Another way is to store heat in high pressure water at saturation temperature in a pressure vessel. High pressure water can generate steam when its 15 pressures are lowered. Such steam stores are called so-called. Steam batteries are well-known solutions in the industry. The problem with steam batteries is the low storage capacity due to the high cost of the pressure vessel.

In the invention, an expensive and small pressure vessel is replaced by a rock cave. The specific investment of • · 20 pressure vessels depends on the size of the pressure vessel and the pressure requirement. Rocky •. f,: Increasing the size of the cave lowers the specific cost of rock storage.

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The elevation of the rock cave determines the pressure of the water in the cave. For example, a cave 100 meters deep has a pressure of 10 bar. The net level of Pai-25 is determined by the hydrostatic pressure of the groundwater. Therefore, hot water with a saturation pressure of 10 bar can be stored at a depth of 100 m.

... The corresponding impregnation temperature is 180 ° C. When saturated water from a cave is pumped to the ground surface, its pressure can be lowered to 1 bar “·” using a control valve. This produces a saturated steam flow of 0.13 kg / s and a flow rate of 0.87 kg / s from 1 kg / s of water to 110542 water cooled to 100 degrees. The cooled water can be returned to the bottom of the cave.

The innovation, therefore, is that the steam accumulator pressure vessel is replaced by a rock cave 5 where the maximum pressure level can be selected according to the depth of the cave. The advantage is the low price of large storage capacities.

DESCRIPTION OF THE INVENTION: an underground reservoir, e.g. The hydrostatic pressure of the water column corresponding to this difference is thus exerted on the water space in the tank.

- the water space can be heated and cooled by condensing and producing steam - the water space can be a heat-insulated watertight tank or a rock cavity 15 - the vaporization can be a process-based steam stored in the natural process steam for long-term storage, for example, to schedule the production of electricity during the shift period to the price of the most expensive electricity.

•. ·. the traditional way of carrying out process steam storage results in a pressure vessel which:. the specific price does not allow day-to-day storage because of its high cost: in process steam generating plants; ***. the system is safe and environmentally friendly 25

The thermal energy recovery and storage system according to the invention is characterized by what is claimed.

The invention will now be described with reference to certain preferred embodiments of the invention not shown in the drawings in the accompanying drawings: 30; 1 ": however, is intended as a limitation only.

• »» »· 3 110542

Figure 1 illustrates a system for recovering and storing thermal energy in accordance with the invention in a coupling structure between a steam boiler and a steam turbine, wherein the steam turbine is adapted to run an electric generator.

5

Figure 2 illustrates another embodiment of a thermal energy recovery and storage system according to the invention in connection with a process steam-to-process condensate water connection.

Figure 1 illustrates the coupling structure between the boiler 10 and the steam turbine 11 and illustrates the use of a reservoir 24 excavated below the groundwater level in the rock in connection with a power plant process for storing and recovering thermal energy.

According to the invention, the feed water conduit 13 is led from the feed water tank 14 via a boiler 10 to a steam turbine 11, which steam turbine 11 is further adapted to rotate an electric generator 12 and generate electricity. The feed water line 13 comprises a feed water pump P1} adapted to pump water from the feed water tank 14 via an economizer 15 in the flue gas duct 10a of the boiler 10, from which the feed water 20 is further directed to the vaporizer 16, from which steam is directed to the superheater 17. the steamed steam is further conveyed through one of the 18 to the steam turbine 11 to rotate the electrical. a power generator 12 for generating electricity.

• »• · · • f • · t • I ·» t

The feed water connection 13 comprises a feed water preheater 19, by means of which the feed water is heated by the heat energy drawn from the tap steam. Thus, the condensate steam unit 20ai is led to the feed water preheater 19 of the steam turbine 11. The unit 21 further leads from the feed water preheater 19 to the feed water tank 14.

'T _ # ·' The combustion air is also preheated in the combustion air preheater 22 and the preheated air is further supplied through duct 23 to the furnace E of the boiler 10, for example • »: '1'; into the boiler. Fuel F is introduced into boiler 10 in its furnace E.

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»» I

The steam turbine 11 still has an exhaust steam assembly 20a2 for an exhaust steam and the exhaust steam assembly 20a2 is still a process steam assembly 20a3 for industrial processes for utilizing process steam.

5

According to the invention, the reservoir 24, preferably a rock cavity excavated in the rock or the like below the surface level Ti of groundwater 25, is filled with groundwater 25 and pressurized by groundwater 25. The height difference H between the groundwater level T1 of the groundwater 25 and the water level T2 of the reservoir 24 determines the static pressure of the groundwater hydro-10 in the reservoir 24 and the pressure level P is in the range of 2 bar to 50 bar. This is determined by the height difference H between the groundwater surface T1 and the water surface T2 of the reservoir 24, which is in the range of 10 m to 500 m.

The reservoir 24 has an upper portion 28a for the vaporizer 27 and a vaporizer 28b for the vaporizer 27b for the evaporator 27 back to the central or lower portion of the reservoir 24. The evaporator 27 has a connection 30 from the process condensate water connection 26 and an outlet 31 from the evaporator 27 to the steam condensation 31. The connection 31 is connected to the process steam connection 20a3. According to the invention, water is supplied from the tank 24 to the evaporator 27 from the top of the tank 24. The return water stream from the evaporator 27 from its outlet side is flowing along the line 28b to the middle or bottom 20 of the tank 24. Circulation flow is provided by pump P2 at port 28b.

• ♦ * ♦ »· ·. The reservoir 24 also has a connection 32a for the condenser 33 and the condenser 33 has a return connection • · · «· ·: 32b back to the reservoir 24, at the top thereof. The assembly 32a is derived from the middle or • · · • φ of the container 24. * * \ from the lower part and the return connection 32b comprising the pump P3 is connected to the middle or upper part of the tank 24. The steam is led from the tap steam connection 20ai through the branch connection 20ai 'to the condensate: * * *; the nozzle 33 and the condenser 33 have a return connection 34 to a brass condensate connection 26.

The vaporizer 27 transfers thermal energy from the rock tank 24 from its high pressure water to produce process steam and the condenser 33 recovers thermal energy from the rock vessel 24 to the water 25. It is essential in the invention that water 25 • ·; . is pressurized to high pressure. In this case, the heat transfer medium in both the evaporator and condenser coils • 110 · 425 always remains water and does not evaporate. Further, at high pressure, the temperature of the recycling circuit can be raised to a high level. The temperature range T in the recycling circuit is in the range 120 ° C to 260 ° C.

Preferably, the container 24 is excavated into the rock. If the soil is not rock, there is a preferred embodiment in which the container is made of metal and preferably further provided with insulators. If the soil is soft and a metal shell is required to form the tank, the formation of the shell takes into account that groundwater can flow into and fill the tank space. Thus, there are vir-10 backsheets between the interior of the container and the exterior of the metal shell. The container 24 may be lined with thermal insulation, for example with pulp. The mass may be porous. It is a good heat insulating material, but lowers the groundwater 25 through the interior of the tank 24.

Figure 2 shows a reservoir 24, preferably a rock reservoir, arranged below the surface level Ti of the groundwater 25 at a height H above the surface level Ti of the groundwater. H is in the range of 10 m to 500 m. From the lower part of the reservoir 24 there is one for the expansion water, one for the expansion basin M, where the water level is approximately equal to the groundwater level Ti. The reservoir 24 has, at its upper part, a connection 35 which branches above ground level to the branch connections 35a and 35b. The assembly 35 comprises a pump P4 at its end 20 on the side of the tank 24 and a valve Vj connected therewith to the bypass passage 36, whereby the pump P4 may be flanked with the flow facing the tank 24 and the pump P4 being non-directional. used. The flow then passes through the bypass branch 36 to the reservoir 24. The branch 35a t1 », ·, · leads to the condenser 33 and the unit 35b leads to evaporation 27. The unit 35a comprises a flow: back-closing and opening valve V2. From the condenser 33 there is a return connection 37 to a tank •: ··: 25 24 through a bypass connection 37b, which is disposed on the side of the pump P5 of the connection 37 and comprises a valve V4. The assembly 37 is connected to the lower or middle portion of the container 24. The assembly 35 engages the top of the container 24. Further, the return connection 37 comprises a ground-condenser:: ''! men 33 near the shut-off valve V3.

In Fig. 2, the vapor compound for process steam is shown at 20a3 and the condensate compound for the process condenser is referenced by reference numeral 26. Of the 20a3, there is a connection for 38 for the condenser 33 and. »1 6 110542 from condenser 33 to conduit 39 to condensate water conduit 26. The conduit 39 comprises a pump P6. Correspondingly, process condensate water connection 26 has a connection 40 to evaporator 27 and from evaporator 27 a connection 41 to process steam connection 20a3. The assembly 40 comprises pump P7. The unit 35 branches at ground level to the branch unit 35b which is connected to the evaporator 27 and 5 comprising a flow opening and closing valve V5. The evaporator 27 has a return connection 42 which is connected to the connection 37. The assembly 42 comprises a flow-opening and closing valve V6.

Thus, opening / closing valves V1 ... V6 will select the intended circulation of high pressure water 25 stored in reservoir 24. Water 25 may be recirculated a) through 35, 35b to evaporator 27 where the cooled water is further passed through return line 42 to 37 and further to the container 24 at its lower part. Then valves V1, V2, V3 are closed valves V5, V6 and V4 are open. Water circulation is achieved by pump P4 In circuit a), heat energy is transferred from the water in the evaporator to produce process steam. The water that has supplied heat to the evaporator 27 is further recycled to the tank 24 at its central or lower portion.

(b) For thermal energy recovery the flow is still as follows. The water in the rock tank 24 is pumped by pump P5 through conduit 37 to condenser 33 20 and condenser 33 through conduit 35a to conduit 35 and further through bypass conduit 26 to reservoir 24. The valves V4, V5 and V6 are closed and valves and V3 are open. The process steam is then condensed in condenser 33 and • · *; The condensate water is transferred from the condenser 33 to the process condenser outlet 26. The circulating circuit:] '': the water warms up and the heated water is transferred to the top of the tank 24.

: ··: 25

EXAMPLE

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As an example, we consider vapor storage suitable for use in a paper mill with a vapor pressure of 20 bar and a vapor pressure of 5 to 30 bar.

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lit * »7 110542

In order to condense the steam at 20 bar, the water reservoir must be located so deep below the surface that the groundwater pressure will exceed 20 bar. Groundwater pressure is given by p = p g H where p is groundwater pressure (Pa) 5 p is water density (1000 kg / m3) • y g is gravitational constant (9.81 kgm / s)

The minimum distance of the upper surface of the water space from the groundwater surface is thus H = p / (p g) = 2,000,000 / (9.81 x 1000) = 204 m.

10 At the top of the water compartment (see Figure 1) there is a 20 bar impregnation temperature groundwater and in the central section a 5 bar impregnation temperature groundwater. The lower part of the water body contains warm groundwater from the surrounding soil. Mixing of water at different temperatures is negligible due to the difference in density of water at different temperatures. Also, heat transfer occurs through conduction across interfaces and is therefore negligible.

15

When the water reservoir is being charged, the central section is pumped to remove groundwater, which is piped to the surface of the ground and heated there by condensing 20 bar of process steam in the heat exchanger. The heated groundwater is returned to the top of the water space. In the recirculation pump, the groundwater pressure is slightly raised to ***** 20 man pressure above 40 bar to prevent water evaporation in the circulatory system. Reply- »» t • · ·,. , * * *. the pressure is then lowered to the water pressure by the control valve.

* · ·

When the heat stored in the water space is utilized to produce process steam, hot groundwater is recycled from the top of the water space to steam on the surface of the ground, where the process water is evaporated. The groundwater cooled to the process steam pressure, which is cooled down to the reflux temperature, is returned to the center of the water space. The circulating water pumps • •. ···. The return valve regulate the groundwater circulation so that water does not evaporate.

• · · • · · • »• · *! ' 30 Charging and discharging systems can be implemented based on one • heat exchanger and one pump.

s 110542

The interface between the impregnation temperatures moves between the upper (20 bar impregnation temperature) and lower (5 bar impregnation temperature) together elevation levels, depending on the underground water charge level. The interface is at the lower to one level when the charge level is at its maximum and minimum when the interface is at the upper to one level.

At the bottom of the water space, a pipe connection is provided to the open expansion pool to compensate for the change in the average density of water in the water space during heating or cooling of the water.

Water, which is obtained when the steam of 20 bar condenses, can be introduced into the upper part of the water space. In the discharge phase, the water can be cooled to a saturation temperature corresponding to a pressure of 5 bar of steam, whereby it is possible to produce 5 bar of steam. The heating and cooling of the water space can be done by a direct ice system (steam condenses directly into the water space and water from the water space is evaporated in a flash tank or indirect system where water and process water do not mix in the process water condensation and evaporation.

'; 20 The size of the water space is determined by how much energy you need o (power x time).

• · «i”. In the example, a paper examines a typical steam requirement (45 • · · MW) during a half-day (12 h). This is the electricity price of the day-_ '' |. the bone-based production capability is not economically viable with conventional ··· technology implemented in process steam production, since storage of steam would require expensive pressure vessels due to their large size. On the other hand, day-to-day storage of district heat is economical because it can be carried out under pressure.

• t ti »Q = <zt t 30 where Q is the energy content of the heat storage, Φ the heat output and t is the charge or discharge time.

9 110542 Q - P v Cp (Tsat (Piata)) where V is the volume of water (m3), cp is the specific water temperature (kJ / kgK), Tsat is the saturation temperature (° C), Pia is the charge pressure (bar) ) jappurku is the discharge pressure (bar).

5 => V = (Φ t) / (p cp (Tsat (20 bar) - Tsat (5 bar))) = (45,000 x 12 x 3600) / (890 x 4.43 (212 - 152)) = 8200 m3.

10 The cost of excavation of the water in question is approximately FIM 200 / m3, or FIM 1.64 million. In addition to this, the cost must be increased by ad hoc excavation tunnels (although in the worst case may be some FIM million).

This will be supplemented by process engineering equipment, ie piping, pumps, valves and heat exchangers at a cost of about FIM 2 million.

In the example case, the total cost of heat storage is at the level of FIM 5-10 million.

• ·; 20 The large industrial steam accumulators have a volume of 250 m3 and the purchase price of the pressure vessel is about FIM 3.3 million. If these were built according to the example. .. system, would be the total number of pressure vessels 8200/250 = 34 and the total price of FIM 112 million. In addition to this, the cost increases buildings, pipeline costs. · · ·. and process equipment such as pumps and valves.

The process vapor storage can thus be implemented at a cost of about 5% compared to the conventional pressure vessel alternative.

, ···, The heat loss of the water space to the soil is a disadvantage of the invention. However, they become smaller when the system is in continuous operation and the surrounding soil (rock) 1 'slowly heats up, thereby reducing heat conduction. If the leakage of hot water, 0 110542, to groundwater is prevented, the heat loss in the continuous case is 0.5 to 1.0 MW. 1 i · • · ·

Claims (13)

110542 A thermal energy recovery and storage system, characterized in that the system comprises a tank (24) below the surface level (Ti) of the groundwater (25), wherein the water of the tank (24) is pressurized by the groundwater. The thermal energy recovery and storage system according to claim 1, characterized in that the height difference (H) between the surface level (Ti) of the groundwater (25) and the surface level (T2) of the water in the tank (24) is 10 H = 10 m - 500 m. With a hydrostatic pressure of water in the tank in the range of 2 bar to 50 bar. A heat recovery system according to any one of the preceding claims, characterized in that the system comprises both an evaporator (27) and a condenser (33), a tank water is circulated between the tank (24) and the evaporator so that the water in the evaporator (27) a heat transfer medium such as water is transferred back to the tank (24) preferably centered at the bottom so that the rigid system comprises a condenser (33), whereby water from the tank, (24) is circulated through the condenser (33) and back to the tank (24); In the 20 condensers (33) heat energy is transferred to water and the water (25) warms and • · ·! 1. the heated water (25) is transferred to the tank (24) preferably at the top so that the steam (27) is arranged between the process steam (20a3) and the process condensate water (26) and respectively the condenser (33) is arranged in a process condenser. · · ·. between the water inlet (26) and the process steam (20a3) or steam (20ai '). 25 A heat recovery system according to claim 3, characterized in that a connection (28a) is conducted from the tank (24) to its evaporator (27) .1 and that the system comprises a connection (28b) for supplying water to the tank (24). (24) preferably to its lower part at the outlet side of the evaporator (27) and that one of the process condensate water connection (26) is connected to the evaporator (27) and further from the evaporator (27) to the process steam (27). and assembly (20a3), and that assembly 12 110542 (28b) comprises a pump (P2) for providing a recirculation flow from the tank (24) to the evaporator (27) and back to the tank (24). A heat recovery system according to any one of the preceding claims, characterized in that the system comprises a condenser (33) and a steam conduit (20ai) and a return conduit (34) to the process condensate conduit (26) and a reservoir (24) ) from the condenser (33) and from the condenser (33) to the return connection (32b) back to the container (24), preferably to its upper part, and that the connection (32a) is preferably led from the middle or lower part of the container (24); P3) to provide a recirculation flow from the tank to the condenser and return to the tank. A heat recovery system according to claim 1, characterized in that the reservoir (24) is excavated in the rock below the surface level (Ti) of the groundwater (25). A heat recovery system according to any one of the preceding claims, characterized in that the water in the reservoir (24) is groundwater in the region. The heat recovery system according to any one of the preceding claims, characterized in that the reservoir (24) comprises one (n) groundwater level plane. to the expansion pool (M). A heat recovery system according to any one of the preceding claims, characterized in that the reservoir has a connection (35) which branches to the branch connections (35a, 35b), the connection (35) comprising a pump (Pj). and alongside it · ·, ···. a shut-off valve (Vi) connected to a by-pass connection (26), and that the tap-in (35a) comprises a valve (V2) and a branch (35b) a shut-off valve (V3), and that the branch (35a) is connected to a condenser (33). an inlet and a branch connection (25b) to an inlet of a vaporizer (27) comprising a shut-off valve (V5) and the outlet of the condenser (33) being connected (37) to the middle or lower portion of the tank (24) and comprising: (P5) and adjacent a shut-off valve (V4) connected to the bypass connection (37b) and a return connection (42) derived from the evaporator (27) comprising a valve (V6), whereby in the above system the valves (Vi ... V6) ) by opening / closing, a suitable circulation can be selected for the high pressure water (25) stored in the tank (24), the water (25) can be recirculated (c) through (35, 35b) to the evaporator (27) where the cooled water is k help the connection (37) and further to the tank (24) at its lower part, then the valves (V), V2, V3) are closed, the valves (V5, V0 and V4) are open, the water is circulated by the pump (P4), transferring thermal energy to the steam at the junction to produce process steam. The water discharging heat from the evaporator (27) is further recycled back to the center (24) of the tank (24), d) the heat flow is still flowing as follows: water from the rock tank (24) is pumped via pump (P5) to condenser 33) and from the condenser (33) along the connection (35a) to the connection (35) and further through the by-pass channel (26) to the container (24), the valves (V4, V5 and V6) being closed and the valves (V1, V2 and V3) ) are open, in which case the process steam is condensed in the condenser (33) and the condensate water is transferred from the condenser (33) to the process condenser outlet *; 20 (26), the water in the circulation circuit heats up and the heated water is transferred to the upper part of the tank (24). » A heat recovery and storage system according to any one of the preceding claims, characterized in that the evaporator (27) and the condenser (33) associated with the tank (24) are arranged in connection with an electricity generating power plant process comprising: a boiler (10), a steam turbine (11), and a power generator (12), wherein the power plant process is a steam turbine tap. vapors or exhaust vapors as well as process condensate water are used in the recovery of thermal energy »1 1! .. 1 and in the process utilization of the recovered thermal energy, wherein the steam (27) is connected to the steam / process respectively, the 14 Ί 10542 condenser is connected between the tap steam (20ai) of the power plant process and the process condensate water connection (26). A heat recovery and storage system according to claim 1, characterized in that the container (24) is a metal container comprising a flow connection for groundwater from outside the container (24) to the inside of the container (24). Heat recovery and storage system according to Claim 1 or 11, characterized in that the container (24) is provided with thermal insulation. 10 The heat recovery and storage system according to claim 12, characterized in that the container (24) is lined with a porous thermal insulating mass which allows water to pass through. 15 • · · • · »·, 5 1 10542 1. Ätervinnings- och lagringssystem för color energy, kännetecknat därav, att systemet omfattar en behällare (24) under ytnivän (Ti) av grundvattnet (25), 5 varvid vattnet i behällaren (24) ) trycksätts med hjälp av grundvattnet. 2. Welding-and-lagringssystem for color energy en patent patent kravet 1, kännetecknat därav, att höjdskillnaden (T) av grundvattnet (25) och ytnivän (T2) av vattenytan i behällaren (24) - 500 m, the colors are det i behällaren rädande hydrostatiska vattentrycket lig ger inom omrädet 2 bar - 50 bar. 3. Vinneningssystem för colors enligt face av de foregäende patentkraven, kännetecknat därav, att systemet omfattar bäde en förängare (27) och en 15 capacitor (33), vatten frän behällaren cirkuleras mellan behällaren (24) och förattaräng ä attme (27) och det det av avdak vär vär---------med,,,,,,,,,,, s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33ens 33 33 33 33 33 33 33 cirkuleras via konden-20 som (33) och tillbaka account behällaren (24), colors color energy Överförs account vattnet i kondensom (33) och vattnet (25) uppvärms och det uppvärmda vatt- • »·: net (25) förs account behällaren ( 24), fördelaktigt account den Övre delen av denna, att • ·. * *. förängaren (27) är anordnad mellan en processängledning (20a3) och en pro- .... I cesskondensvattenledning (26) resp. condensom (33) and anordnell mellan pro- cesscondensvattenledningen (26) and processängledningen (20a3) eller en ängledning (20aj '). '4. Ätervinningssystem för Värme enligt patentkravet 3, kännetecknat därav, att: ·. *. ffän behällaren (24), ffän den övre delen av denna, är dragen en ledning (28a) 30 account förängaren (27) och att systemet omfattar en ledning (28b), med hjälp av. '. letting the watten leds account behällaren (24), fördelaktigt account den undre delen av den-> »· · · 16 16 10542 na, frän utloppssidan av förängaren (27) och att i systemet en ledning (30) gar frän processkondensvattenledningen (26) ) till förängaren (27) och vidare gär en ledning (31) frän förängaren (27) till processängledningen (20a3) och att led-ningen (28b) omfattar en pump (P2), med vilken ästadkoms et cirulations-5 flöde frän behällaren ( 24) till förängaren (27) and tillbaka account behällaren (24). 5. Winningsystems for colors enligt face av de föregäende patentkraven, kännetecknat därav, att systemet omfattar en condensor (33) och account denna en ängledning (20ai) och en returledning (34) account en processkondensvattenled-10 Ning (26) och att frän behäläl (24) gär en ledning (32a) account condensom (33) och frän condensom (33) en returledning (32b) tillbaka account behällaren (24), fördelaktigt account den Övre delen av denna och att ledningen (32a) fördelaktigt är dragen frän den I do not want to delete the behällaren (24) och att re-turledningen (32b) omfattar en pump (P3), med æstkoms et circulationa 15 tionsflöde frän behällaren account condensom och tillbaka account behällaren. 6. Anterminating system for coloring the patent patent 1, inserting the insert, att behällaren (24), and inserting the yoke (Ti) av grundvattnet (25). 20 * ·, ·, 7. Ätervinningssystem för colors enligt face av de föregäende patentkraven, <> ·, ·,: kännetecknat därav, att vattnet i behällaren (24) är grundvatten frän omrädet. »» · I · ► · 8. Ätervinningssystem för colors enligt face av de föregäende patentkraven,; '· 25 kännetecknat därav, att behällaren (24) omfattar en ledning (n) till en expan- • «· sionsvattenbassäng (M) i närnant av avtnivän av grundvattnet. * · * ": 9. Ätervinningssystem för colors enligt face av de föregäende patentkraven, *:, *, kännetecknat därav, att frän behällaren gär en ledning (35), som förgrenar sig • t. * · ·. 30 i grenledningar (35a) , 35b), varvid ledningen (35) omfattar en pump (Pi) och en. Spärrventil (Vi) ansluten account en parallellt med denna kopplad förbiström- • II 17 110542 ningsledning (26) och att grenledningen (35 a) omfattar en vent ( V2) och grenledningen (35b) en spärrventil (V3) och att grenledningen (35a) ø atten-ten till inloppet av condensom (33) och grenledningen (25b) till inloppet av förängaren (27) omfattande en spärrventil (V5) och att frän utloppet av-5 condenser (33) gär en ledning (37) till den mittersta und be delen aven hällaren (24) och denna omfattar en pump (P5) och parallellt med denna en till en förbiströmningsledning (37b) ansluten spärrventil ( V4) och att till ledning-en (37) dr ans fänängen (27) dragen returledning (42), som omfattar en ventil (Ve), colors i ovannämnda system en ändamälsenlig circula-10 tion for det i behällaren (24) lagrade högtrycksvattnet (25) kan outdoors genome öppning / stängning av ventilema (Vi ... V6) , colors vattnet (25) male circular c) genome ledningen (35,35b) till förängaren (27), där det avkylda vattnet förs vidare genom returledningen (42) till ledningen (37) och vidare till behällaren (24), till den undre delen av denna, the lakes and the ventilation (V |, V2, V3) stängda 15 and the ventilation (V5, V6 and V4) and the ventilation, vattencirkulationen ästadkoms med pumpen (P4), a) överförs frän vattnet color energy i förängaren för alstrande av processänga, vattnet som avgett Värme i förängaren (27) cirkuleras vidare tillbaka account behällaren (24), account den mittersta eller den undre delen av denna,. . 20 d) vid vintervinn av aven en energie flödet vidare feljande: vatien frän bergbe- '· _ hällaren (24) bringas att strömma med hjälp av pumpen (P5) längs ledningen • »»: (37) account kondensom (33) och frän kondensom (33) account of längs ledningen (35a) ···. ledningen (35) och vidare genom förbiströmningskanalen (26) account behällaren.,. (24), därvid är venten (V4, V5, och V6) stängd och ventilema (Vi, V2 and V3), "'. condenser process condenser (33) and condenser power condenser (33) till process condenser condenser (26), vattnet>; · · · i circulationskretsen uppvärms och det uppvärmda vattnet förs account den Övre = '': delen av behälen ., ···. 30 10. Ätervinnings- och lagringssystem för colors enligt face av de föregäende patentkraven, kännetecknat därav, att förängaren (27) och kondensom (33), '110542 1 o som är anslutna account behällaren (24), är. anordnade i samband med en kraft-verksprocess som alstrar electricitet, flashing kraftverksprocess omfattar en panna (10), en ängturbin (11) och en Generator (12) som alstrar elektricitet, colors mellanuttagsängor och utloppsängor frän ängtpatten i kraftverks processen används vid ätervinning av Värme- Energi och vid processanvändning av ätervunnen viermeenergi, varvid föränga-ren (27) ell ansenen account mellan en mellanuttagsängledning frän ängturbinen (11) eller en processängensvattenledprocess i kessen. condensed cells ansan mellen mellanuttagsängledningen 10 (20ai) i kraftverksprocessen och processkondensvattenledningen (26). 11. Anterminations- and lagringssystem för colors enligt patentkravet 1, ank-tecknat därav, att behällaren (24) an metallbehällare, som omfattar en flöd desförbindelse för grundvatten frän utsidan av behällaren (24) an account insidan av. 12. Vinnings- och lagringssystem för colors enligt patentkravet 1 eller 11, kännetecknat därav, att behällaren (24) försedd med color isolation. 13. The insertional and the lagringssystem for the coloring of the patent 12, the tecking of the lining, the att behällaren (24) and the flashing in the porous color of the insulations. ; ··; 25