CN202066301U

CN202066301U - Solar energy vapor two-phase flow thermal storage and drying device

Info

Publication number: CN202066301U
Application number: CN2011201405666U
Authority: CN
Inventors: 林皓
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-05
Filing date: 2011-05-05
Publication date: 2011-12-07
Anticipated expiration: 2021-05-05

Abstract

A solar energy vapor two-phase flow thermal storage and drying device includes evacuated heat collecting tubes and a union set box matched and connected with the heat collecting tubes, and is characterized in that horizontal error at the two ends of each heat collecting tube is smaller than +35mm or -35mm; pipe orifices of the heat collecting tubes are provided with water-retaining objects; the union set box is provided with a steam pipe communicated with a heat exchanger in an external water storage type thermal storage container; a pipe line network is arranged above the thermal storage container; and the pipelines of the pipe line network increase monotonically and are in heat transmission connection or heat transmission contact with a heating load. The device has the benefits that the heat collecting tubes are horizontally arranged, so that parts thereof along the axial lead are identical in state and performance, and distances between heating areas of the heat collecting tubes and reserved water are shortened, and heat transmission can be directly performed through inner glass tubes without the need of capillary materials for water carrying; normal water inflow of the heat collecting tubes is guaranteed through the water-retaining objects when the union set box is obliquely arranged; the water storage type thermal storage can be used for heat energy storage and drying; a light-focusing solar energy device has excellent vapor generation effect; and a microcomputer control system can realize the automatic control. An embodiment is given in combination with the attached figure.

Description

Solar steam two phase flow accumulation of heat drying unit

Technical field

The utility model relates to solar steam two phase flow accumulation of heat drying unit.

Background technology

Existing vacuum heat collection pipe heat-collecting temperature height, heat waste is little, industrialization level is high, can provide domestic hot-water more than 50 ℃ in the winter time with the cannula type solar water heater of its manufacturing.But generally speaking, the application product of vacuum heat collection pipe is abundant not enough.

Summary of the invention

The purpose of this utility model is that solar steam two phase flow accumulation of heat drying unit will be provided.

The technical scheme in the invention for solving the technical problem:, form a solar steam two phase flow accumulation of heat drying unit with solar steam heat collection device and storage water heater heat storage container.The solar steam heat collection device is formed by vacuum heat collection pipe with the connection collection box that thermal-collecting tube is connected.Connection collection tape has turnover water barge pipe.Can also adopt the Control System of Microcomputer that disposes magnetic valve, water-temperature water-level sensor or flowmeter.The horizontal error that makes the thermal-collecting tube two ends is less than positive and negative 35 millimeters.During actual installation, the horizontal error of thermal-collecting tube is the smaller the better.At the thermal-collecting tube mouth of pipe dash object is set.The dash object comprises that connection collection box connects the dash cushion rubber of refuting pipe and embedding the thermal-collecting tube mouth of pipe.Connection collection box adopts a steam pipe that is communicated with heat exchanger in the outside storage water heater heat storage container.Storage water heater heat storage container inside is negative pressure, and a piping network that gas is unimpeded is contained in its top.The pipeline of piping network is dull rise or dull descend and conduct heat with heating load be connected or heat transfer contact.The dullness here rises and dull decline is of equal value, and dullness rises or dull decline allows horizontal pipe.

Can also adopt the one dimension reflecting and condensing device; And make beam condensing unit be connected with thermal-collecting tube optically focused, promptly the absorbing film of thermal-collecting tube is in the optically focused zone of one dimension beam condensing unit.

Can also a control valve that be electrically connected with the Control System of Microcomputer main frame be set between between piping network above the heat storage container and bottom water retention zone.

The beneficial effects of the utility model: the horizontally disposed thermal-collecting tube that makes of thermal-collecting tube is consistent with performance along the state of axial line each several part, shortens distance between thermal-collecting tube heat affected zone and the water, also can directly rely on inner glass tube to conduct heat without the capillary materials water lift.Thermal-collecting tube can normally be intake and retained water when the dash object was in tilted layout connection collection box.The storage water heater accumulation of heat can make full use of solar energy and can realize balanced oven dry by heat energy storage.Environmentally friendly and the thermal material excellent performance of water.Between between piping network above the storage water heater heat storage container and bottom water retention zone, the control valve that is electrically connected with the Control System of Microcomputer main frame is set, can implements accurate stoving process.It is effective that the solar energy equipment of optically focused produces steam.Control System of Microcomputer can realize various senior automatic controls, promotes the performance of drying unit.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a solar steam two phase flow accumulation of heat drying unit structural representation.

Fig. 2 is that Fig. 1 joins the cross section that collects box and analyses and observe.

1. inner bags among the figure; 2. refute pipe; 3. thermal-collecting tube; 4. sealing ring; 5. dash cushion rubber; 6. refute pipe; 7. heat storage container; 8. heat exchanger; 9. steam pipe; 10. piping network; 11. bin; 12. material; 13. water pot; 14. feed pump; 15. case; 16. sensor; 17. control valve.

The specific embodiment

Fig. 1 and Fig. 2 provide an embodiment of the present utility model jointly.

Among Fig. 1 and Fig. 2, connection collection box inner bag 1 both sides are welded to connect refutes pipe 2, refutes pipe 2 and is connected with vacuum heat collection pipe 3 usefulness sealing rings 4, forms a solar steam heat collection apparatus.Thermal-collecting tube 3 is horizontally disposed; Its mouth of pipe embeds dash cushion rubber 5 also makes thermal-collecting tube 3 can retain water fecund steam more.Connection collection tape has turnover water barge pipe 6 and a steam pipe 9 that is communicated with heat exchanger 8 in the outside storage water heater heat storage container 7.Heat storage container 7 inside are negative pressure, and a piping network 10 that gas is unimpeded is contained in its top; The pipeline of piping network 10 is dull rise and with a multi-layer material frame for conveying 11 on wait that drying material 12 low thermal resistances contact, for example by also waiting to dry material 12 and place on the described wing plate in that the wing plate being set on the pipeline of piping network 10.The end of steam pipe 9 is communicated with a water pot 13, and contains a feed pump 14 that is serially connected with between water pot 13 and the turnover water barge pipe 6.Connection collection tape has case 15, filling heat-insulating material in the case 15.For for purpose of brevity, the one dimension reflecting and condensing device does not draw among the figure.

The operation principle of Fig. 1 and Fig. 2 embodiment: the water in the sunlight heating thermal-collecting tube 3 makes its intensification and evaporation, and steam arrives heat exchanger 8 and heat exchanger 8 heat exchange and condensation in the heat storage container 7 through connection collection box inner bag 1 and steam pipe 9, and condensed water enters in the water pot 13.Obtain heat energy from heat exchanger 8, the temperature rising heat energy storage of water in the heat storage container 7.After, Control System of Microcomputer is according to the 16 measuring and calculating condensation water quantities of the level sensor in the water pot 13.When reaching setting value, condensation water quantity starts moisturizing.

When with multi-layer material frame for conveying 11 on wait to dry the temperature of the piping network 10 that material 12 low thermal resistances contact, when being lower than the water temperature in the heat storage container 7, because higher its water vapour pressure height of water of temperature in the heat storage container 7, and the lower lower water vapour pressure of temperature correspondence of piping network 10 each inner surface of pipeline.Under this steam pressure reduction effect, especially vacuumize under the negative pressure background of formation in heat storage container 7 inside, the steam band of temperature higher position heat and is arrived temperature lower and heat release condensation rapidly, condensed water can return the water storage space of heat storage container 7 bottoms smoothly in the piping network 10 that dullness rises or dullness descends, and---the two phase flow nature heat exchange that flow---condensation---returned circulates to enter evaporation once more, so go round and begin again, realize the transmission of heat energy.

The heat energy that steam in the thermal-collecting tube 3 carries also is under differential pressure action, arrives the heat exchanger 8 in the storage water heater heat storage container 7.Be lower than in the locus of heat exchanger 8 under the situation of thermal-collecting tube 3, need to use feed pump 14 will be transported to thermal-collecting tube 3 from the steam condensate (SC) of thermal-collecting tube 3.Under the effect of the sun, the moisture in the thermal-collecting tube 3 is subjected to thermal evaporation then, and steam arrives the heat release condensation of heat storage container 7 places again, and condensed water is transported to thermal-collecting tube 3 by feed pump 14 again, constantly solar thermal energy is transported to heat storage container 7.This is that a kind of two phase flow of circulating pump that adopts forces the heat exchange circulation.Under the situation of 5 times of gathering thermal-arrests, the water in the thermal-collecting tube 3 also needed just evaporate in 5 hours, so feed pump 14 does not need continuous running.

Between piping network above the heat storage container 7 10 and bottom water storage space, a control valve 17 that is electrically connected with the Control System of Microcomputer main frame is set, can realize the drying procedure be scheduled to, perhaps realize the optimization of drying course.Control valve 17 does not turn-off, and just is used for regulating; And guarantee that when regulating condensed water can reflux.

Claims

1. solar steam two phase flow accumulation of heat drying unit is made up of solar steam heat collection device and storage water heater heat storage container, and the solar steam heat collection device is formed by vacuum heat collection pipe with the connection collection box that thermal-collecting tube is connected, and connection collection tape has turnover water barge pipe; Can also adopt the Control System of Microcomputer that disposes magnetic valve, water-temperature water-level sensor or flowmeter, the horizontal error that it is characterized in that the thermal-collecting tube two ends is less than positive and negative 35 millimeters; The thermal-collecting tube mouth of pipe contains the dash object; Connection collection box contains a steam pipe that is communicated with heat exchanger in the outside storage water heater heat storage container; Storage water heater heat storage container inside is negative pressure, and a piping network that gas is unimpeded is contained in its top; The pipeline of piping network is dull rise or dull descend and conduct heat with heating load be connected or heat transfer contact.

2. according to the described device of claim 1, it is characterized in that containing the one dimension reflecting and condensing device; Beam condensing unit is connected with thermal-collecting tube optically focused, and promptly the absorbing film of thermal-collecting tube is in the optically focused zone of one dimension beam condensing unit.

3. according to claim 1 or 2 described devices, it is characterized in that between the top piping network of described storage water heater heat storage container and bottom water retention zone between, contain a control valve that is electrically connected with the Control System of Microcomputer main frame.