NO20111763A1 - System solution for heat recovery from swimming pools and water parks connected to sports facilities and other buildings (RHP system) - Google Patents

Abstract

Primarily, the invention is the accumulation of energy from a time of day when dehumidification must be carried out with large amounts of surplus energy. With this, RHP's system solution takes care of all fluctuations in energy consumption throughout the day. The system captures and stores energy, which traditional recycling does not safeguard.

Description

Field of the invention

The present invention relates to a system solution with accumulator tanks on both sides of the heat pump, as well as absorption and release of energy from several different sources.

As an accumulation tank on the heating side, separate accumulation tanks are primarily used, secondarily it is accumulated against an equalization tank including a swimming pool.

The solution is based on a heat pump that cools down the buffer tank with ice water (min. +0 °C), which in turn circulates through exchangers in connection with the recovery of energy from the bleed water, waste water from showers and other heat sources, before it is released into the drain.

Vidre circulates the ice water up to the battery in the exhaust air duct for dehumidification, then returns the dehumidifying air back to the swimming pool. The ice water also circulates to the battery placed in the exhaust duct (Fig 2, unit 3602) and absorbs the amount of energy that the mechanical recuperator does not take before the exhaust air goes out into the open. (+ 8°C to + 1°C)

Buffer tanks (fig 1 A and B) from the heat pump act as reservoirs for energy quantities obtained from the ice water buffer tank via the heat pump.

Stored energy is built up in the buffer tanks day and night and can be used and distributed according to energy fluctuations in consumption.

The recycling capacity is greatest at night, as consumption is less than during the day and will then, with the above-mentioned accumulation possibilities, handle the surplus energy amount that cannot now be used.

Dehumidification at night means that the buffer tanks for ice water to heat store the excess energy that builds up at night. This is approximately 50% of the total amount of energy recovered. This accumulated amount of energy is reused when the need arises due to increased consumption during the day. This means that large amounts of energy can be recovered.

This is one of the big differences to traditional recycling, where surplus heat must be used/used directly, otherwise the energy used will not go straight out into the open air.

Our system primarily accumulates recovered heat via buffer tanks, secondarily using release tanks, waste heat tanks and the basin volume.

The pool volume is thus used to accumulate energy as needed.

During daytime operation, stored energy will be used to raise the ice water temperature considerably.

This results in a greater cooling factor, which gives a greater amount of power output than the added power for operating the compressor.

The ice water maintains a temperature (from a minimum of +0 C and upwards), which provides maximum absorption of energy from the sources without freezing stopping the process.

The ice water also circulates through a battery which is placed after the recuperator on the exhaust air for ventilation aggregates, which in relation to the average annual temperature will amount to approximately +7 °C.

During summer operation, the above-mentioned battery will also be able to act as a cooling battery for the system when the ice water becomes too hot.

Condenser on the side of the heat pump (vvx-5) emits the heat recovered from the above energy sources to a buffer tank which maintains a maximum temperature of 55 °C. Back-up from after-heating sources such as electric boilers or district heating only starts below 45 °C

Known technology.

The entire heating system is set up as low temperature 50/40 °C, which preheats the domestic water from 4 °C up to 50 °C.

This means that when using a low temperature, it is possible to cover the energy requirement with 100% for post-heating for pool water and the ventilation units.

This is a simple, flexible system that has more options than traditional recycling.

With the absorption of energy from several sources that accumulate in buffer tanks, the energy is used via the heat pump to the buffer tank for heat that is distributed to several user locations. Surplus heat can also be distributed to neighboring buildings.

After searching a number of patent sources, only two publications can be highlighted:

In English explanatory document Dl: JP 4084050 A describes the publication of a heat recovery system for use at low temperatures. Make use of a heat pump, as well as circulating water with ice cubes to absorb low-temperature energy. Phase change ice/water is used for heat absorption.

Another document D2: JP 6307655A publication describes heat recovery from computer rooms. Cool water is used to cool the room, where the water circulates between the heat exchanger and a heat pump.

Both of these system solutions clearly differ from our solution, in that they do not have accumulator tanks on both sides of the heat pump.

Our solution includes separate accumulator tanks on both sides of the heat pump which are primarily used for the accumulation of energy, secondarily an equalization tank, waste heat tank and swimming pools with corresponding volumes are used.

This allows for the accumulation of energy at night when the swimming pool is dehumidified and the system absorbs the energy that will be reused. The accumulated energy that is stored is reused as needed.

Summary of the invention

Primarily, the invention is the accumulation of energy from a time of the day when the dehumidification must be carried out with large amounts of excess energy.

RHP's system solution thus takes care of all fluctuations in energy consumption throughout the day. The system captures and stores energy, which traditional recycling does not take care of.

Brief description of the drawing walls.

Figure la and b RHP's complete system solution.

Figure 2 shows the aggregate solution for dehumidification.

Figure 3 shows the system solution for ordinary ventilation.

Claims (1)

RHP System solution (Fig 1 a) is a system that consists of a coolant with mixed 30% glycol and has a working temperature of minimum (+ 0 C) for absorption of energy from various sources (blood water vvx-7, the ventilation system 3601 (Fig 3) and 3603, dehumidification and exhaust air 3602 and from gray water) and facilitates the primary aspect of the patent claim when an accumulator tank for ice water connected to the cooling side (vvx-6) of the heat pump Fig 1 a and b) is fitted and that an accumulator tank is fitted to the heat pump's hot side (wx-5) after which (Fig la) the accumulated energy is delivered to various sources (wx-2, wx-3, consumption water wx-4, vvx-9,vvx-10, the ventilation system 3601-3602-3603 and radiator courses are stored (accumulator tanks, boilers and equalization tank including swimming pools) until later application, which means that all excess heat captured at night is extracted during the day via buffer tanks that have accumulated the night's energy, which is used when the consumption is greater than the capacity of the recovered amount of energy, thus the patent requirement is accumulation that can absorb fluctuations in the energy flow on the glycol side and the heat side which can then be used as needed.