FI92104C - Mass storage demolition arrangement - Google Patents

Description

92104

The present invention relates to a heat discharger discharge tank assembly according to the preamble of claim 1.

Various mass accumulators are most commonly used in heating systems in small buildings, such as detached houses and terraced houses. 10 A mass accumulator is a device with a high-heat-capacity core that acts as a accumulating mass. Metal and, ceramic or liquids are used as core materials. The most commonly used heat storage media are water, ceramic masses and iron. The controller presented in this application is best suited for accumulators whose core is a solid, such as iron.

The accumulator works in such a way that its heart is heated to a very hot temperature and the heat & energy of the heart is discharged by means of a heat sink.

20 The aim is to use low-cost energy alternatives for heating, such as heating, which is often significantly lower than during peak hours. The heart is heated by electric heating by means of electrical resistors placed inside the core material. The operating cycle of the accumulator is yosåhkttkäytos-25 så day, when the heating of the accumulator is started when the lower tariff is switched on. The heart is heated to about 500 ° to 600 ° C and the heating is switched off when the temperature in the heart is high enough. Usually the heart is charged at the maximum temperature. When the charged heat 30 is needed, for example, to heat an apartment or domestic hot water, water which is evaporated is pumped into the water channels of the heart and the thermal energy of the heart can be transferred to the heating application by means of steam and condenser.

35 As the water evaporates, the pressure in the canals of the heart rises rapidly.

Due to the increase in pressure, a high-efficiency pump capable of pumping water at high pressure must be used to pump water. At the same time as the water is fed into the heart of the accumulator, the water vapor leaves the heart and its heat is recovered in a condenser 92104 2. In the condenser, the steam condenses into water and the condensation lowers the pressure in the heart. The condensation rate of the water depends on the mMS-rHst & the power absorbed through the condenser and the lSmpi5mSSrS delivered by the heart depends on the mM & rSst & of the water pumped into it. Thus, the water pumped into the accumulator core must quickly monitor changes in the heat output of the condenser in order for the recirculation system to operate in equilibrium. The water recirculation systems require very high dynamics, which makes the required pump power 10 high and the system of the equipment complex. The required pump power is increased by more flow in the condenser.

15 different safety valve arrangements and expansion sails are used in the water recirculation systems of the mass accumulators to balance the operation of the system. Such arrangements slow down the operation of the system. The power taken from the condenser alone does not change very quickly, but the use of the hot water causes large, relatively short-term power spikes in the power taken from the condenser 20, which can be monitored by the system. The continuous heating power required by a detached house is approx. 4 kW, but heating the heating water increases the power consumption by 20 to 40 kilowatts. In addition, warming the heart while discharging 25 affects the control of the water circulation system. Of course, the L & mmdn return cannot be interrupted during charging and the heart must be able to charge the pSivSHM during peak consumption if the l & mpd energy allocated to the heart during a cheap tariff is not sufficient for renewal.

30

Finnish patent application 781838 discloses a solid-state damping system in which the system is transferred in a closed loop by evaporation and condensation. The TSSS solution does not use a mass accumulator and it is not possible to transfer the heat from the evaporator 35 to the condenser, so the heat transfer depends on the amount of lamp fed to the evaporator. The sMatd method of such a jMr system thus differs substantially from systems using a mass accumulator.

Due to the requirements presented above, the unloading systems of mass accumulators have been complicated and thus expensive, 5 and even a very suitable accumulator for the use of detached houses has not been possible with the help of current solutions. Complexity of equipment Increases the need for maintenance and reduces reliability.

The object of the present invention is to provide a discharger arrangement for a mass accumulator which causes a flow of water through the accumulator and the condenser so that the water circulation rate depends only on the heat output provided by the condenser.

The invention is based on the fact that the circulation of water in the closed water circulation system of the apparatus is effected by means of a pressure accumulator.

More specifically, the arrangement according to the invention is characterized by what is stated in the characterizing part of claim 1.

The invention provides considerable advantages.

The 25 precipitation arrangement is very fast and no external energy is needed to pump the water. the system quickly settles to the equilibrium state determined by the current load situation and its dynamics are good. Due to the large pressure areas of the pressure accumulator, the accompanying arrangement reacts to even small pressure changes.

Changes in the temperature of the heart do not affect the heat output from the condenser, because the water circulation rate and at the same time the temperature output by the heart are determined by the power delivered to the systems outside the condenser. Thanks to this, the heat bond of the accumulator can be discharged 35 completely linearly if desired. The arrangement does not generate steam shocks because the water is not forced into the heart but the system is constantly pressurized. the system is completely closed and there •.

4 92104 is only one moving part. There are no susceptible items and there is no need for maintenance. The storage system designed for detached houses is small and requires almost as much space as a large jS & cabinet. Since the equipment 5 does not require pumps or other noise-causing parts, the equipment can even be placed in the actual living quarters.

The invention will now be discussed in more detail with reference to the accompanying drawings.

10

Figure 1 schematically shows the structural principle of the invention.

Figure 2 is a diagram of an operation test performed with a device according to the invention.

In this application, a pressure accumulator refers to a device whose volume changes automatically as the relative ratio of the pressures acting on it changes. An example of such a device is the membrane component used in the following example.

20

As can be seen from Figure 1, the mass accumulator implemented with the arrangement according to the invention is very simple. The reservoir is denoted by the reference number 1. In the heart of the reservoir 1 there is a truncation channel 2, which is shown in a reduced form.

The shape of the channel 2 may vary and its radcent is not relevant to the application of the invention. The evaporation duct 2 is connected to a condenser 3 to a condenser 4, through which, for example, the piping 11 of the building's central heating system passes. The condenser 4 leaves a condensate pipe 5 connected to a water connection 6. The water connection 6 the condensate pipe 5 is connected to the water channel 6 between the accumulator 1 and the part 7 of the system 7.

The diaphragm controller 7 consists of two spaces separated by a diaphragm 9, a water space 8 and an air space 10. The condenser 4 has a condensate condensing space and a venting connection 12. The system is removed during the installation phase.

5 The arrangement works as follows. The core of the mass accumulator 1 is heated in some suitable way, for example yGsåhkGllå. The lamp connection of the accumulator 1 can be dismantled regardless of the heating if the lamp space of the heart is sufficient. When the accumulator 1 is not discharged, the hGyry channel 10 and the condenser 4 have hGyrya 10 and the rest of the circulating water is in the water space of the membrane transmitter 7 as the membrane 9. When the lamp connection of the accumulator 1 is to be utilized, water is circulated through the cooling piping 11 of the condenser 4, which cools the steam in the condenser 4. Now the hGyry in the condenser 4 condenses into water and the pressure 15 in the condenser 4 drops and the hGyry flows into the condenser 4 from the evaporator channel 2 of the accumulator 1. In this case, the pressure of the hGyry channel 2 tends to decrease. Since the water side of the membrane transmitter 7 has a lower pressure than the air pressure, the water level in the water space 8 of the receiver 7 rises when the air pressure acts on the air side 10 of the membrane 9.

As the water level in the receiver 7 rises, the water enters the evaporation channel 2 of the accumulator 1, where it evaporates. The condensing water in the condenser 4 returns through the condensate pipe 5 to the water connection 6, 25 from where it either extends into the storage space 2 of the accumulator 1 or into the water space of the regulator 7, depending on the load situation. The more heat power is taken from the system, i.e. the water vapor is condensed by means of the condenser 4, the more the air pressure acting on the membrane 9 pushes water into the evaporation duct 30 of the accumulator 1 2. When the accumulator 1 has transferred its charge handed over - * at all, all the liquid water is in the water tank 8 of the membrane adapter 7 and elsewhere in the ductwork there is gutted or superheated hGyry.

A charger suitable for a detached house can charge approx. 100 kWh of charging energy during the day. The water volume of a Tailainen storage tank is about 1-4 liters, and the same ratio of charging capacity to water volume usually applies to larger storage tanks.

Figure 2 shows a charging and discharging test of a charger according to the invention. The figure shows two solid temperature states T2 and T5 at different points on the input of the accumulator 1 in a continuous and dotted line. The electrical energy supplied to the mass is shown by the dashed line and the thermal energy delivered by the accumulator by the dotted line.

10

Discharging and heating of the accumulator was started simultaneously and at the beginning of the experiment the temperature of the pulp was slightly above 100 ° C. The pulp was heated for 8 hours (480 min), during which time the temperature of the pulp rose slightly above 500 ° C, after which heating was stopped. In this experiment, the heat output was discharged from the pulp so quickly that the thermal energy stored in the pulp during heating was not sufficient for 24 hours. Thus, the pulp was charged with additional electrical power for 16 hours. T3m & nMable charging energy and ISmpotilakSyrissM in small 20 steps.

As shown in Figure 2, the discharge energy range is linear until the temperature of the pulp has dropped below 100 ° C. At this point, there is a curve in the curve. The temperature-25 pd state of the pulp and the heating power supplied to it do not therefore affect the heat output delivered in the condenser, and the heat energy contained in the pulp can be discharged linearly.

In addition to the above, the invention has other embodiments. More than one condenser is usually needed, for example for domestic hot water and for a heating system. If there are several condensers, the power to be discharged varies rapidly, because e.g. considerably more energy is required for the heating of domestic water than is consumed in the heating system-35, but such a system can also be implemented with the aid of the present invention. From the parallel condensers: always the coldest determines the system pressure.

. · 92104 7 Any device, such as a pressure accumulator, which forms a volume that varies according to the pressure difference, can be used as the controller. These include, for example, spring, diaphragm or gas-operated pressure accumulators used in hydraulics, bellows made of metal-5 strip or other materials, and flexible tanks. If desired, the pressure difference required for the controller to operate can be formed, for example, by means of a spring or a pressurized gas, but the use of atmospheric pressure as external pressure is simplest. In all cases, the pressure area should be as large as possible for the sdSdin to be sensitive to even small pressure changes. 1 • * · · «

Claims (5)

Control device for extracting heat energy from a heat accumulator (1) with at least one evaporation channel (2) in a closed circuit by evaporation and condensation by means of at least one capacitor (4) connected to the evaporation channel (2), characterized by - a pressure accumulator (7), which forms a water space (8) of varying volume, - a water nozzle (6), which connects the water space (8) of the pressure accumulator (7) with the evaporation channel (2) / and 15 - one at the condenser ( 4) arranged capacitor tube (5), which drains the water space (8), the bounce (6), the combustion channel (2) and the capacitor (4) to a closed circuit. 20 Control device according to Claim 1, characterized in that one end of the condenser wire (5) is arranged at the water connection (6) between the pressure accumulator (7) and the combustion channel (2). 25 « Control device according to claim 1, characterized in that in the closed circuit formed by the device only water in liquid form and water vapor is present. 30 Control device according to Claim 1, characterized in that the ratio between the amount of water contained in the device and the battery's charging capacity is 1 - 4 liters per 100 kWh / d. 35 Control device according to Claim 1, characterized by an aeration connection (12) arranged at the capacitor (4).