RU95808U1 - DEVICE FOR HEATING AND HOT WATER SUPPLY OF HOLIDAY SITES BY SOLAR ENERGY - Google Patents

Abstract

 1. A device for heating and hot water supply of household plots with solar energy, comprising a solar heat receiver, heat receiver, heat accumulator, control unit, closed loop of a solar heat receiver, closed heating circuit of a summer house, a hot water supply circuit for a shower and kitchen additionally contains a greenhouse, a heating input which is connected to the channel of the heating circuit of the country house, the output through the electronic three-way valve is connected to the heat receiver with the possibility of Switching to the heat accumulator. ! 2. The device for heating and hot water supply of household plots with solar energy according to claim 1, characterized in that it contains a control panel with the ability to switch two modes: the first - through a control unit and an electronic three-way valve, the heating circuit is connected to the country house, greenhouse and a hot water distributor for shower and kitchen with the ability to switch to the heat accumulator, the second - through the control unit, the heating circuit is connected only to the greenhouse with the ability to switch to the heat accumulator rafts.

Description

The utility model relates to a heating and hot water supply system for country houses and greenhouses in remote and inaccessible areas and can be used in private plots by gardeners, amateurs, as well as large agricultural companies.

The certificate for utility model [1] “A device for generating electric energy and heat recovery in remote and inaccessible areas” is known. The device contains a gas cylinder, a thermoelectric generator and a water circuit. The water circuit serves to remove heat from the cold junctions of the thermoelectric generator and is connected to a water heater, and the device can be used both for heating a country house and heating a greenhouse. The disadvantage of this device is that in this device the energy source is gas, which is associated with significant fuel consumption during its operation. In addition, for the normal growth and development of plants in greenhouses, a certain thermal regime is required. When determining the power of heating systems in the spring-summer-autumn period, the minimum temperature in the greenhouse should be + 18 ° С, which is not provided for in this work.

The closest technical solution (prototype) is [2] "Solar Collector", which contains a solar heat receiver (collector); heat exchanger; heat accumulator; heat consumers: shower, heating of a country house. The heat-receiving device is used to convert the electromagnetic radiation of the Sun into thermal energy by heating the coolant and transferring the heat received to consumers. The main disadvantage of this device is the lack of heating of the greenhouse in household plots at low ambient temperatures, since on cold, cloudy days, especially at night, the temperature under the film can be below the safe limit. In order to prevent this and maintain the temperature of the greenhouse at the proper level, emergency heating was not provided in [2].

The inventive utility model solves the problem of heating the greenhouse at low ambient temperatures.

The technical result in this case is the creation of an optimal thermal regime in the greenhouse, allowing to grow early vegetables in the central and northern regions of the Russian Federation.

The technical result is achieved by the fact that in the known device containing a solar heat receiver (collector), a heat receiver, a heat accumulator, a control unit, a closed circuit of a solar heat receiver, a closed heating circuit of a country house, a hot water supply circuit of a shower and a kitchen further comprises a greenhouse, a heating input which is connected to the channel of the heating circuit of the country house, the output through the electronic three-way valve is connected to the heat receiver with the ability to switch ia to the heat accumulator. In addition, the device contains a control panel with the ability to switch two modes: the first through a control unit and an electronic three-way valve, the heating circuit is connected to a country house, a greenhouse and to a hot water distributor for a shower and a kitchen with the ability to switch to a heat accumulator, and the second through a control unit the heating circuit is connected only to the greenhouse with the ability to switch to the heat accumulator.

In the drawing (figure 1) presents the inventive water heater, which contains a solar heat-receiving device 1; heat exchanger 2; heat accumulator 3; hot water dispenser 4; country house 5; greenhouse 6; electric pumps 7, 8, 9; electronic three-way cranes 10, 11; electronic valves 12, 13; manual valve 14, end valves 15, 16; control unit 17; control panel 18; mode switches 19, 20; comparison blocks 21, 23, 25; adjusters 22, 24, 26; temperature sensors 27, 28, 29; the sun's rays 30; coolant channels 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50; channels for supplying electric energy 51, 52, 53, 54, 55, 56, 57, 58, 59; channels for supplying electrical signals 60, 61, 62, 63, 64, 65, 66, 67, 68; soil 69. In the proposed scheme, three circuits are used: A, B, C. A closed circuit A includes a solar heat-receiving device 1, a heat exchanger 2, an electric pump 7 and channels 31, 32, 33. A coolant circulates along circuit A in a heat-receiving device 1 as a result of heat transfer from the heat carrier to the sun, the heat carrier is heated, and in the heat exchanger 2, heat is transferred to the heat carrier of the closed circuit B. Water and a high-temperature heat carrier can be used as the heat carrier.

Closed circuit B includes an electric pump 8, a heat accumulator 3, a country house 5, a greenhouse 6, electronic three-way valves 10, 11; electronic valves 12, 13, manual valve 14; coolant channels 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 47, 48. Through these channels, under the influence of an electric pump 8, the coolant circulates along circuit B, while the electronic three-way valve 10, depending from the temperature directs the coolant through channel 38 to the heat exchanger 2 or bypassing it through channel 39 to the heat accumulator 3. The electronic valve 12 serves to automatically open and close the channel 44 associated with the greenhouse 6, and the electronic valve 13 serves to open and close the channel 35, associated with the heat accumulator 3.

Circuit B includes an electric pump 9; distributor 4; end cranes 15, 16; cold water channels 49, 50; channels of heated water 45, 46; soil 69.

The utility model is designed to use the device in personal plots both for permanent residence on this plot (1 mode), and for its use in the absence of gardeners at this facility during the working week (2 mode). The proposed device operates as follows.

1 mode. Heating of the country house and greenhouses 6 should work, valve 14 is open.

In clear weather, the proposed device operates as follows. The sun's rays 30 enter the heat-receiving device 1 and heat up the coolant of circuit A. On the control panel 18, the user presses the switch 19, as a result of which electric power is supplied to the control unit 17 through the channel 51. The control unit 17 supplies electric power through the channel 53 to the electric pump 7, channel 54 to the electric pump 8, channel 55 to the electric pump 9, channel 56 to the electronic three-way valve 10, channel 57 to the electronic three-way valve 11. The above-mentioned electric elements begin to work, while

- as a result of the operation of the electric pump 7, the coolant circulates in a closed circuit A;

- as a result of the operation of the electric pump 8, the coolant circulates in a closed circuit B. In this case, the heated coolant of circuit B as a result of heat exchange in the heat exchanger 2 with the coolant of circuit A is sent through channels 34, 35, 36, 43, 44; manual valve 14; country house 5; channels 47, 37; three-way valve 10 and channel 38. In addition, part of the coolant through channel 36 enters the distributor 4, where as a result of heat exchange heats the cold water of circuit B. After the distributor 2, the coolant of circuit B enters the channel 37 and mixes with the coolant of channel 47 and continues its circulation .

If heating is not required in the country house, then valve 14 closes.

Cold water from circuit B from underground 69 is supplied by electric pump 9 through channels 49, 50 to distributor 4, where, as a result of heat exchange with a coolant, closed counter B is heated and heated water is supplied through channels 45, 46 through end taps 15, 16 to consumers, for example in the shower and in the kitchen.

The temperature sensor 29, installed in the greenhouse 6, controls the temperature of the greenhouse, while the signal from the temperature sensor 29 is fed through the channel 68 to the comparison unit 25. At the same time, the signal is sent to the comparison unit 25 via channel 66 from the setter 26. In the comparison unit 25, the signals from the temperature sensor 29 and the setter 26. If the signal of the temperature sensor 29 exceeds the signal of the setter 26, the mismatch signal is fed through channel 67 to the control unit 17, which through channel 58 turns on the electronic valve 12, while opening Al 44 and the coolant of circuit B is supplied to greenhouse 6, heats the greenhouse and returns to closed circuit B through channel 48. When the set temperature in greenhouse 6 reaches the set temperature, the error signal in the comparison unit 25 is zero, the control unit 17 turns off the electronic valve 12 and channel 44 stops the flow of coolant into the greenhouse 6.

During the circulation of circuit B, part of the coolant through channel 35 through the electronic valve 13 enters the heat accumulator 3, where heat is accumulated and through channels 42, a three-way valve 11, channel 40 coolant returns to channel 37 of closed circuit B and the circulation of circuit B continues. When the set temperature in the heat accumulator 3 is reached, the comparison unit 23 sends a zero signal to the control unit 17 through the channel 65, which stops the supply of electricity to the electronic valve 13 and turns it off, i.e. shutting off the heat carrier to the heat accumulator 3.

When the weather worsens and when the sun sets, the temperature of the sun's rays 30 decreases and, accordingly, the solar heat-receiving device 1 starts to work below its capabilities, while the temperature sensor 27 sends a signal to channel 22 through channel 62, where it simultaneously passes through channel 60 from setter 22 through channel 60, a signal is supplied, which are compared and a mismatch signal is supplied to the control unit 17, which supplies electric power to the electronic three-way valve 10, which closes the channel 38, opens the channel 39. The control unit 17 also supplies electric energy through channel 59 to the electronic valve 13, while channel 35 opens to the heat accumulator 3. In addition, the control unit 17 supplies electric energy to the electronic three-way valve 11 through channel 57, while channels 42, 41 are opened, and channel 40 is closed. circuit B begins to circulate bypassing the heat exchanger 2 through the heat accumulator 3 and the country house 5, the greenhouse 6 are heated and hot water is supplied through channels 45, 46 to the shower room and the kitchen.

Mode II. On the control panel 18, the user presses the switch 20, as a result of which electricity is supplied to the control unit 17 through the channel 52. In this case, the heating of the country house 5 is turned off by the manual valve 14, the pump 9 is not working, the hot water supply is turned off, the temperature of the greenhouse 6 is controlled by the sensor 29 the above algorithm.

In the second mode of operation of this device at the time of generation of excess heat in the heat receiving device, the proposed device enters the "stagnation" mode or, more simply, the idle mode. In this mode, the automation stops pumping the heat carrier through the heat-receiving device 1. Thus, the selection of heat from the heat-receiving device 1 is stopped and the heat-receiving device is heated to a temperature of 150-200 ° C. At this temperature, the coolant in the heat-receiving device 1 begins to turn into steam. In this case, the resulting overpressure is compensated by an expansion tank, which must be installed in a closed circuit A (this figure is not indicated in figure 1). It should be noted that with repeated overheating of the coolant, its chemical composition can change, which can lead to the failure of the device. Therefore, to discharge excess heat in the summer, special additional heat exchangers can be used or the device is connected to the pool heating system.

Thus, a device for heating and hot water supply of household plots with solar energy allows you to get cheap thermal energy in the spring-summer-autumn time, as a result of which the optimal thermal regime is maintained in the country house, greenhouse; the user is provided with hot water and the task of saving energy resources is being solved.

Information sources

1. Certificate for utility model No. 5216, F02G 5/02. A device for generating electric energy and heat recovery in remote and inaccessible areas / V.N. Timofeev, G.E. Chekmarev, A.A. Ilyina, T.K. Yarova. Publ. 10/16/97. Bull. No. 10.

2. Patent 2224188, F24J 002/04. Solar Collector / B.I.Kazanjan, A.M. Mass, A.S. Dyachishin. Publ. 02/20/2004.

Claims (2)

1. A device for heating and hot water supply of household plots with solar energy, comprising a solar heat receiver, heat receiver, heat accumulator, control unit, closed loop of a solar heat receiver, closed heating circuit of a summer house, a hot water supply circuit for a shower and kitchen additionally contains a greenhouse, a heating input which is connected to the channel of the heating circuit of the country house, the output through the electronic three-way valve is connected to the heat receiver with the possibility of Switching to the heat accumulator. 2. A device for heating and hot water supply of household plots with solar energy according to claim 1, characterized in that it contains a control panel with the ability to switch two modes: the first - through a control unit and an electronic three-way valve, the heating circuit is connected to the country house, greenhouse and a hot water distributor for shower and kitchen with the ability to switch to the heat accumulator, the second - through the control unit, the heating circuit is connected only to the greenhouse with the ability to switch to the heat accumulator rafts.