Greenhouse

 

(57) Abstract:

The use of agriculture in the field of crop production in buildings protected ground. The inventive greenhouse comprises a base 1, teploograzhdenie enclosure 2, the irradiation system and the heating system, which includes the main source of heat and the heating registers of 6.7. According to the invention the greenhouse is divided by a partition 3 isolated between a seedling 4 and 5 vegetable compartment in which is installed a heating registers of 6.7. The heating system is equipped with a cooling circuit 8 and the block temperature compensation, including additional heat source 15, made in the form of a heat exchanger circuit, placed on the upper surface of the reflecting elements of the radiation sources 18 a - lamps. Registers heating 6,7 reflux contours 19,20 containing shunt pumps 21, 22 and three-way mixing valves 23,24. The use of the invention will reduce the consumption of heat energy to raise proagainst, to improve the quality and reduce the time of seedling plants. 3 C.p. f-crystals 3 Il.

The invention relates to agriculture, in particular to the structures of greenhouse, greenhouses, etc the fence, the irradiation system including optical sources, with reflective elements, and the heating system, which includes the main source of heat communicated with the inlet of the feed pump fluid, and heating registers (Industrial production greenhouses",, Voroshilovgrad, Soyuzselkhoztekhnika, 1974).

A disadvantage of the known greenhouse is a significant consumption of thermal energy and low yield of crops.

The task was to create a greenhouse, which reduces the consumption of thermal energy increases the yield of crops.

The problem is solved in that the greenhouse containing base, heat-insulating enclosure; an irradiation system including a source of optical radiation with reflective elements, and the heating system, which includes the main source of heat communicated with the inlet of the feed pump of the coolant, and the registers of heating according to the invention, the greenhouse is divided into isolated between a seedling and vegetable division, in the first and second of which are, respectively, the first and second registers of heating, and the heating system is equipped with a cooling circuit and block temperature to the aqueous contour, placed on the upper surface of the reflecting elements of the sources of optical radiation, the first and second registers of heating include, respectively, first and second feedback circuits, each of which contains a shunt pump and three-way mixing valve, and the outlet of the feed pump coolant is connected to the first input of the three-way mixing valve of the first feedback circuit, the output of which is connected to the input of the first register of heating, and the second output through the shunt pump in a given circuit connected to the output of the above-mentioned case of heating, connected to the first input of the block temperature compensation, the second input is through a cooling circuit connected to the first output of this block, and the second output of the latter is connected to the first input of the three-way mixing valve of the second feedback circuit, the output of which is connected to the input of the second register heating, and a second entrance through pomeshivayte pump of the same circuit is connected with the output of this register heating, connected to the inlet of the feed pump of the coolant in the block temperature compensation the first inlet through the first valve associated with the first outlet, through which sequentially connect sledovatelno United fourth and fifth valves, moreover, an additional heat source connected between the third and fifth valves.

In a preferred embodiment of greenhouse cooling circuit includes registers cooling along the insulating fence greenhouse and made in the form of tanks, installed on the base of the greenhouse and parallel with the top and bottom, with each tank is made with a monotonic decrease in the height of this capacitance value of area of its cross section by a plane parallel to the base of the greenhouse, with each capacity of the cooling circuit is made in the form of a prism, the base of which has a trapezoid shape and size of the areas of the upper and lower bases of each tank cooling circuit is inversely proportional to the target value of the air temperature in the upper and lower zones of the greenhouse.

In Fig. 1 shows a diagram of the greenhouse of Fig.2 circuit control the operation of greenhouses; Fig.3 block temperature compensation.

The greenhouse contains a base 1, teploograzhdenie enclosure 2. Sealed by a partition 3 the greenhouse is divided into isolated between a seedling 4 and 5 vegetable compartments, each of which has respectively berwyndale 9, containing five valves 10, 11, 12, 13 and 14 and the additional heat source 15, made in the form of the heat transfer path 16, is placed on the upper surface of the reflecting elements 17 sources of optical radiation 18. The first register of the heater 6 and the second register of the heater 7 is equipped with reverse circuits 19 and 20 contain the recharge pumps 21 and 22 and three-way mixing valves 23, 24. The output of the feed pump 25 coolant, connected to the boiler 26 or other source of heat provided to the first input of the three-way mixing valve 23 of the inverse circuit 19, the output of which is connected to the input of the first register of the heater 6, and the second output through the shunt pump 21 in a given circuit connected to the output of the register 6, which is connected, in turn, to the first input 27 of the block temperature compensation 9. The second input 28 of the block through the cooling circuit 8 is connected with the first output 29 of the block 8. The second output 30 of the block temperature compensation 9 connected to the first input of a three-way mixing valve 24 of the second feedback circuit 20, the output of which is connected to the input of the second register of the heater 7, and a second entrance through the shunt pump 22 of the circuit connected with the output of this register heater 7, which seedl 10 is connected with the first output 29, which is connected in series through the gates 11 and 13 are connected to the second outlet 30, and the first 27 and second 28 inputs connected through serially connected valves 13 and 14, and the additional heat source 15 is connected between the valves 12 and 14. Positions 31, 32, 33, 34 and 35 are marked, respectively, the actuators of the valves 10, 11, 12, 13 and 14. Positions 36, 37, 38 electric pumps 21, 22 and 25, positions 39, 40 electric three-way mixing valves 23, 24. Position 41 shows the temperature sensors in the greenhouse. The heating system directs the control Cabinet 42.

The cooling circuit 8 includes registers cooling 43 along the insulating fences 2 greenhouses. Registers cooling 43 made in the form of tanks, installed on the base 1 of the greenhouse and having parallel top 44 and bottom 45 of the base, capacity performed with a monotonic decrease in the height of this capacitance value of area of its cross section by a plane parallel to the base 1 of the greenhouse. In addition, each tank of the cooling circuit is made in the form of a prism, the base of which have a trapezoid shape and size of the areas top 44 and bottom 45 of the grounds, is inversely proportional to the target value Tempe the heating system is supplied with warm water from the boiler 26 to heat the feed pump 25 electric 26 or heated by other heat sources for example, Heaters or other heaters. In the heat exchanger 16 block thermal compensation 9 water heated by a heat source of optical radiation lamp irradiation 18 placed in seedling compartment 4 for exposure category (vegetable outlets due to the high cost of electricity spetacular is rarely used). Depending on the air temperature in seedling 4 and 5 vegetable outlets of greenhouses heated water is fed into the heating registers 6 and 7 and their return paths 19, 20, heating the air in the volume of the greenhouse or, in the case of overheating, is directed past the heat exchanger 16, in the case of cooling 43 where it is cooled, eliminating overheating in the greenhouse and heated at the same time fence greenhouse. At low temperature in any branch of the warm water from the heat exchanger 16 is supplied to the heating registers this Department.

There are various options for regulation of the heating system in the greenhouse.

the 1st option. The temperature in the vegetable Department and seedling branch corresponds to the norm. In this case, the valve 10 and the three-way mixing valves 23, 24 are opened, the gates 11, 12, 13, 14 are closed. Hot water from the heat exchanger 16 through the outlet 29 to the pipe enters the heating registers 6 and 7 and their return paths vegetable compartment below normal, and for the seedling branch corresponds to the norm. In this case, the valves 11 and 13, the three-way mixers 23, 24 are open, the valves 10, 12 and 14 are closed. The heated water from the heat exchanger 16 through the valve 10 through pipelines is supplied to the heating register 7 and the back of the circuit 20, where it circulates. Through the valve 12, the coolant enters the case cooling 43 and returns to the heat exchanger 16, giving heat in the vegetable compartment 5 and cooled in the case of cooling 43.

the 3rd option. The temperature in the nursery ward 4 above normal (overheating), in the vegetable compartment 5 corresponds to the norm. In this case, the valves 10, 12 14 and three-way mixing valve 24 open. Hot water from the heat exchanger 16 block temperature compensation 9 through the valve 10 enters the heating register 7 and the feedback circuit 20 for heating the vegetable compartment, and through the valve 12 to the register of the cooling 43 for cooling, where through the valve 14 is returned to the heat exchanger 16. This removed overheating in the nursery Department.

4 - option. The temperature in the vegetable compartment 5 above normal, for the seedling branch 4 normal. In this case, the valve 10 and three-way mixing valve 23 are opened and the gates 11, 12, 13, 14, and three-way valve 24 are closed. Hot water through intelwire in the register 7, bypassing the heat exchanger 16. In this case, heated seedling compartment and cooled vegetable.

The application of the proposed greenhouse with an additional heat source and temperature control in offices greenhouses will allow to reduce the consumption of thermal energy for heating greenhouses, to increase the yield of crops by 6-9% improve quality and shorten the growing seedlings.

1. GREENHOUSE containing base, heat-insulating enclosure, exposure, including sources of optical radiation, with reflective elements, and the heating system, which includes the main source of heat communicated with the inlet of the feed pump fluid, and the heating registers, wherein the greenhouse is divided into isolated between a seedling and vegetable division, have respectively first and second registers of heating, and the heating system is equipped with a cooling circuit and block temperature compensation, containing five valves and additional source of heat, made in the form of heat-exchange circuit is placed on the upper surface of the reflecting elements of the sources of optical radiation, while the first and the contains shunt pump and three-way mixing valve, moreover, the output of the feed pump coolant is connected to the first input of the three-way mixing valve of the first feedback circuit, the output of which is connected to the input of the first register of heating, and the second output through the shunt pump in a given circuit connected to the output of the register heating, connected to the first input of the block temperature compensation, the second input is through a cooling circuit connected to the first output of this block, and its second output connected to the first input of a three-way mixing valve of the second feedback circuit, the output of which is connected to the input of the second register heating, and a second entrance through the shunt pump of the same circuit is connected with the output of this register heating, connected to the inlet of the feed pump of the coolant in the block temperature compensation the first inlet through the first valve associated with the first output, which is connected in series through the second and third gates connected to the second output and the first and second inputs connected through serially connected fourth and fifth valves, and the additional heat source is connected between the third and fifth valves.

2. The greenhouse under item 1, characterized in that h is Itza, interconnected in series and is made in the form of tanks, installed on the base of the greenhouse and parallel with the top and bottom, with each tank is made with a monotonic decrease in the height of the value of area of its cross section by a plane parallel to the base of the greenhouse.

3. The greenhouse under item 2, characterized in that each tank cooling circuit is made in the form of a prism, the base of which have the shape of a trapezoid.

4. The greenhouse under item 2, characterized in that the lengths of the squares of the upper and lower bases of each tank cooling circuit is inversely proportional to the target value of the air temperature in the upper and lower zones of the greenhouse.

 

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