SU1257369A1 - Heat-storage system - Google Patents

Description

The invention relates to solar power, in particular to heat storage systems.

The purpose of the invention is to increase the storage capacity of the system while reducing the cost of building a ground battery by using ground water as a heat carrier.

FIG. J is a schematic diagram of the surface part of the heat storage system; in fig. 2 shows the arrangement of wells of the pipeline network of the heater and heat exchangers of the heat removal device to the consumer by area of the ground accumulator with a spatial limited volume; FIG. 3 shows a heat storage system with a cut along a ground battery (fragment); in fig. 4 - designs of the drain well of the water supply network of the heater, section; Fig. 5 shows an embodiment of the heater in the form of a solar collector, section.

The heat storage system contains a soil battery 1 (FIG. 3) with a spatially limited volume and a heat exchange device 2 located therein to transfer heat to the consumer and a heater 3, connected via a pipe network 4 and pump 5 (FIG. 2) heat with ground battery 1 "

The spatially limited volume of the soil battery 1 (fig.Z) contains the aquifer 6, is made. Our flow-free pipeline network 4 (Fig. 2) of heater 3 is hydraulically connected to the aquifer 6 (Fig. 3) using wells 7 and 8 made in the ground, and the heat exchange device 2 for removing heat from the soil is arranged in a number of vertical directions heat exchangers 9.

The pipeline network 4 (Fig. 2) of the heater 3 includes a lifting circuit. WATER from wells 7, composed by pressure tank 10 with a centrifugal pump 5, pressure pipe 11, branches 12 of which are lowered into wells 7 and are hydraulically connected to lifting pipes 13 using water jet pumps 14 in the lower part of the aquifer 6 (Fig. 3), and the circuit of the spill of heated water in the drain wells 8, composed by a pipe 15 connecting the pressure

tank 10 with heater 3, made in the form of a solar collector, and a system of pouring pipelines 16, branches 17 of which are lowered into the wells 8.

The draft pipeline system 16 has a coaxial structure and its individual elements are provided with valves. The CC is the axial structure of the pipelines 16 forming small, medium and large circles 19-21, respectively.

The lifting pipes 13 of the water lifting circuit from the wells 7 are hydraulically interconnected by a pipe collector 22, the connecting pipe 23 of which is lowered into the pressure tank 10 and has a valve 24.

The manifold pipe 22 and the dispensing pipe 25 of the heater 3 are connected to a system of draft pipelines 16,

to

pipe 26 is hydraulically connected to valve 27.

The heat exchangers 9 of the heat removal device 2 are the main heating system having a structure similar to that of the draft pipe system 16. The heating system is formed by a fan 28 with a discharge duct 29 and branches 30, equipped with valves 31 and connected to heat exchangers 9, open ends 32 which are located in the greenhouse 33 (Fig. 1). Heat exchangers 9 are located in wells 8. Wells 7 and 8 (Fig. 3) are equipped with casing pipes 34 and 35, respectively. Drain wells 8 (Fig. 4) have sand filling gravel 36 and gravels. Drainage pipelines 16 and their branches 17 are provided with thermal insulation 37, Dispensing pipe 25 (FIG. 2) of the solar energy collector and pipeline 15 are connected hydraulically by pipe 38 to valve 39 I

The solar energy collector is made flat and contains two-layer glass 40 (Fig. 5) with glass supports 41, a flat tank 42

with corrugated surface and thermal insulation 43. Pipe 15 is connected to a solar collector distribution pipe 44 installed on the foundation 45 and the supporting wall 46,

If there is a flow of groundwater or insufficient level of them, the array of groundwater accumulator 1 enclosure

A waterproof wall (not shown) located on the waterproof layer of the soil. After this, water can be refilled.

The lifting pipelines of the wells are equipped with valves and means for measuring the temperature of the water and the soil (not shown). A valve (not yet installed) is also installed on the pipe 15.

The heating system can be equipped with two thermal relays (not shown), one of which turns the fan 28 on and off according to the temperature of the room in the greenhouse 33, and the other turns on the centrifugal pump 5 with an insufficient temperature of heated air.

The heat storage system operates as follows.

In the presence of water in the pressure tank 10 (FIG. 2), the pump 5 is turned on and the water is pumped through the pressure pipe 11 and the branches 12 enters the water jet pumps 14 (FIG. 3), which carry ground water from the aquifer 6 and run T e along the lifting pipes 13 wells 7 (Fig. 2) in the tank 10, from which groundwater flows by gravity into the heater 3 (solar energy collector).

Water heated in the solar collector enters the system of draft pipelines 16, and of them, according to holes 17 (Fig. 3) - into the drain wells 8. The ground water level in the wells 7 decreases, which ensures the flow of ground water from the drain wells 8 to water intake wells 7 and thereby heat transfer from the accumulator groundwater heated in the collector of ground water 1

It is advisable to spill hot water into wells 8, starting with a small circle 19, and as heat accumulates connect medium and large circles in series 20 and 21, respectively. Water intake from wells 7 can also be carried out selectively according to temperature measurements of groundwater and soil in the zone of wells 7.

If necessary, heat the greenhouse. 33 (FIG. 1) include the 28CHFIG fan. 2) and pumped air through the heat exchangers 9 (fig.Z) with the release into the room. With insufficient heating of the air in the heat exchangers 9 simultaneously include the pump 5, which ensures the transfer of heat from the soil to the zones of the wells 8.

The invention will make it possible to create heat storage systems of large capacity with minimal construction costs.

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Fig.Z

sixteen

3.5 8

40

44

FIG. five

Editor M. Dylyn

Compiled by P. Shenderovich

Tehred L.Oleynik Korg, vector G.Reshetnik

Order 4902/34 Circulation 649. Subscription VNII1SH USSR State Committee

on inventions and discoveries 113035, Moscow,), 4/5 Raushsk nab.

Production and printing company, Uzhgorod, Projecto st., 4

Claims (1)

HEAT ACCUMULATION SYSTEM containing a ground battery. with a spatially limited volume and a heat exchanger device for removing heat to the consumer and a heater located therein, using a piping network and a pump connected in heat to the soil accumulator, characterized in that, in order to increase the storage capacity of the system while reducing the cost of constructing the soil accumulator, the spatially limited volume of the soil accumulator contains an aquifer made non-flowing, the pipeline network of the heater is hydraulically connected to the latter using wells made in the soil, and a heat exchanger for removing heat from the soil is made in the form of a plurality of vertically arranged heat exchangers. § ώ cl H Od s