CN105627597A - Solar heat accumulation system for intelligently calculating heat loss - Google Patents

Abstract

The invention provides a solar heat accumulation system. The system comprises a heat collector and a heat accumulator; a temperature sensor and a heat accumulator pipeline temperature sensor are arranged in a water tank; the temperature sensor in the water tank and a central control unit are in data connection; a flow meter is arranged on a water tank outlet pipeline; a flow meter is arranged on a heat accumulator pipeline; the two flow meters and the central control unit are in data connection; and the central control unit can calculate the heat loss in the solar system transportation process through water temperatures and flows, that is, the heat loss=(the temperature of water in the water tank-the temperature of water entering the heat accumulator)*mass flow rate*specific heat of water. The system intelligently monitors the heat loss, timely prompts the conditions about heat loss to users, and realizes the intelligence of solar heat accumulation.

Description

A kind of solar heat-preservation system of intelligence computation heat loss

Technical field

The invention belongs to field of solar energy, particularly relate to a kind of solar heat-preservation system.

Background technology

Along with the high speed development of modern social economy, the mankind are increasing to the demand of the energy. But the traditional energy storage levels such as coal, oil, natural gas constantly reduce, day by day in short supply, cause rising steadily of price, the problem of environmental pollution that conventional fossil fuel causes simultaneously is also further serious, the raising of these development that all significantly limit society and human life quality. One of energy problem's most distinct issues having become as contemporary world. Thus seek the new energy, particularly free of contamination clean energy resource has become the focus of present people research.

Solar energy is a kind of inexhaustible clean energy resource, and stock number is huge, and the solar radiant energy total amount that earth surface is received every year is 1 �� 10¹⁸KW h, consume gross energy for world's year more than 10,000 times. Countries in the world are utilizing as important of new energy development using solar energy all, and the Chinese government also clearly proposes actively to develop new forms of energy at Report on the Work of the Government already, and wherein the utilization of solar energy is especially in occupation of prominent position. Arriving tellurian energy density little (about a kilowatt every square metre) yet with solar radiation, and be again discontinuous, this brings certain difficulty to large-scale exploitation. Therefore, in order to extensively utilize solar energy, not only to solve technical problem, and must be able to same conventional energy resource economically and compete mutually.

The automaticity of current solar heat-preservation is not high, although the Based Intelligent Control of solar energy has also been studied by prior art, but the Intelligent Control Research for solar heat-preservation is not as many, for the problems referred to above, the invention provides the solar heat-preservation system of a kind of new Based Intelligent Control, thus the Based Intelligent Control in Solar use process.

Summary of the invention

The invention provides a kind of new solar heat-preservation system, thus solving the technical problem above occurred.

To achieve these goals, technical scheme is as follows:

A kind of solar heat-preservation system, described system includes heat collector, thermophore, and described heat collector includes thermal-collecting tube and water tank, and described thermal-collecting tube includes heat absorbing end and release end of heat, and described release end of heat is arranged in water tank; Described thermophore is arranged on thermophore pipeline, described water tank connects formation closed circuit with thermophore, and thermal-collecting tube absorbs solar energy, the water in heating water tank, water after heating enters thermophore by vessel outlet, by heat storage in the heat-storing material of thermophore; Arranging thermophore line temperature sensor on described thermophore pipeline, arrange temperature sensor in described water tank, the temperature sensor in thermophore line temperature sensor, water tank and central controller carry out data cube computation; Arranging effusion meter on tank outlet pipeline, thermophore pipeline arranges effusion meter, two effusion meters carry out data cube computation with central controller; Temperature sensor in described water tank can detect the water temperature in water tank, thermophore line temperature sensor can measure the water temperature entered in thermophore, central controller can calculate the heat loss in solar energy system transportation by water temperature and flow, i.e. heat loss=(water temperature of the water temperature in water tank-entrance thermophore) �� mass flow �� specific heat of water; Described mass flow is the numerical value of the flowmeter survey arranged on the mean values of two flowmeter surveys or thermophore pipeline.

As preferably, if the heat loss of detection is excessive, then central controller sends prompting automatically.

As preferably, described thermal-collecting tube includes flat tube and fin, described flat tube includes tube wall parallel to each other and sidewall, described sidewall connects the end of parallel tube wall, fluid passage is formed between described sidewall and described parallel tube wall, described thermal-collecting tube release end of heat includes fin, described fin is arranged between tube wall, described fin includes the sloping portion favouring tube wall, described sloping portion connects with parallel tube wall, fluid passage is spaced apart the multiple passage aisles of formation by described sloping portion, adjacent sloping portion connects on tube wall, between described adjacent sloping portion and tube wall triangle, sloping portion arranges intercommunicating pore, so that adjacent passage aisle communicates with each other, intercommunicating pore is isosceles triangle, and the triangle constituted between described adjacent sloping portion and tube wall is isosceles triangle.

As preferably, the drift angle of the isosceles triangle of intercommunicating pore is B, and the drift angle of the isosceles triangle constituted between adjacent sloping portion and tube wall is A, then meet equation below:

Sin(B)=a+b*sin(A/2)-c*sin(A/2)²;

Wherein a, b, c are parameters, wherein 0.559 < a < 0.565,1.645 <b < 1.753,1.778 < c < 1.883;

60 �� < A < 160 ��; 35 �� < B < 90 ��.

Compared with prior art, the solar heat-preservation system of the present invention has the advantage that

1) intelligent monitoring heat loss of the present invention, and remind user about the situation of heat loss in time.

2) present invention regenerator temperature by detecting, by controlling the opening and closing of valve, thus ensureing intelligent accumulation of heat, it is ensured that heat makes full use of.

3) thereby through controlling flow, the temperature of present invention inflow temperature and heat-storing material by monitoring heat utilization device, ensures that the water temperature of heat utilization device is constant.

4) present invention have studied new collector structure, and by substantial amounts of experiment, it is determined that the physical dimension of best flat thermal-collecting tube, so that when ensureing heat exchange resistance so that heat transfer effect reaches the best.

Accompanying drawing explanation

Fig. 1 is solar energy collector system control structure schematic diagram;

Fig. 2 is solar thermal collector cross section structure schematic diagram of the present invention;

Fig. 3 is thermal-collecting tube cross-sectional structure schematic diagram of the present invention;

Fig. 4 is the cross section structural representation that one thermal-collecting tube inner rib plate of the present invention arranges lead to the hole site place;

Fig. 5 is the schematic diagram that the present invention arranges through-hole structure sloping portion plane;

Fig. 6 is another schematic diagram that the present invention arranges through-hole structure sloping portion plane;

Fig. 7 is the triangle through hole structural representation of the present invention;

Fig. 8 is the cross sectional representation of thermal-collecting tube heat absorbing part of the present invention;

Fig. 9 is the cross sectional representation of currently preferred thermal-collecting tube heat absorbing part;

Figure 10 is that Fig. 1 improves schematic diagram;

Figure 11 is thermophore structural representation.

Accompanying drawing labelling is as follows:

1 thermal-collecting tube, 2 fluid passages, 3 tube walls, 4 sloping portions, 5 summits, 6 intercommunicating pores, 7 fins, 8 water tanks, 9 heat absorbing end, 10 release end of heat, 11 base plates, 12 absorption films, 13 glass plates, 14 thermal insulation layers, 15 inner rib plates, 16 thermophores, 17 vessel outlet, 18 tank entry pipes, 19 outlet pipe temp sensors, 20 outlet valves, 21 bypass line temperature sensors, 22 bypass line valves, 23 inlet tube valves, 24 thermophore pipe valves, 25 thermophore line temperature sensor, 26 central controllers, 27 accumulator inlet pipes, 28 heat-storing materials, 29 heat utilization pipe valves, 30 heat utilization device.

Detailed description of the invention

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.

Herein, without specified otherwise, relating to formula, "/" represents division, and "��", " * " represent multiplication.

A kind of solar thermal collection system, as shown in Figure 1-2, described system includes heat collector, thermophore 16, and described heat collector includes thermal-collecting tube 1 and water tank 8, and described thermal-collecting tube 1 includes heat absorbing end 9 and release end of heat 10, and described release end of heat 10 is arranged in water tank 8. Heat absorbing end 9 absorbs solar energy, is transferred heat to the water in water tank by release end of heat 10. Described water tank 8 connects formation closed circuit with thermophore 16, thermal-collecting tube 1 absorbs solar energy, water in heating water tank 8, water after heating enters thermophore 16 by vessel outlet 17, thermophore 16 carries out heat exchange, by heat storage in the heat-storing material of thermophore 16, the water flowed out in thermophore 16 enters in water tank 8 at tank entry pipe 18 and is heated.

Described solar thermal collector also includes transparency glass plate 13, thermal insulation layer 14, absorption film 12. Absorption film 12 is arranged on above (namely towards the one side of the sun) of thermal-collecting tube 1 heat absorbing end 9, and transparency glass plate 13 covers the front of the heat absorbing end 9 of thermal-collecting tube, leaves thermal insulation layer 17 between heat absorbing end 9 and transparency glass plate 16, and as preferably, thermal insulation layer is vacuum layer. Safety glass, thermal insulation layer is adopted to be vacuum layer as preferably clear glass plate 16; As preferably, absorption film 12 is arranged on the front of heat pipe 1 heat absorbing end 9 by the mode sputtered.

Base plate 11 is arranged on thermal-collecting tube 1 bottom, and described base plate is insulation material.

As preferably, the thickness of thermal insulation layer 17 is 18mm��25mm; As being preferably 20mm.

As shown in Figure 3, at release end of heat 10, described thermal-collecting tube includes flat tube 1 and fin 7, described flat tube 1 includes tube wall 3 parallel to each other and sidewall 12, described sidewall 12 connects the end of parallel tube wall 2, fluid passage 2 is formed between described sidewall 12 and described parallel tube wall 3, described fin 7 is arranged between tube wall 3, described fin 7 includes the sloping portion 4 favouring tube wall, described sloping portion 4 connects with parallel tube wall 3, fluid passage 2 is spaced apart the multiple passage aisles 10 of formation by described sloping portion 4, adjacent sloping portion 4 connects on tube wall, between described adjacent sloping portion 4 and tube wall 3 triangle, sloping portion 4 arranges intercommunicating pore 6, so that adjacent passage aisle 10 communicates with each other.

By arranging intercommunicating pore 6, ensure the connection between adjacent passage aisle 10, so that fluid in the big passage aisle of pressure can to flowing in the little passage aisle of contiguous pressure, solve the problem that internal pressure is uneven and local pressure is excessive when flat tube heat exchange, thus having promoted the fluid abundant flowing in heat exchanger channels, improve heat exchange efficiency, also improve the service life of thermal-collecting tube simultaneously.

As preferably, along the centre (i.e. the centre position of tube wall 3 in Fig. 3 cross sectional representation) of the tube wall 3 of flat tube cross section to both sides sidewall 12 direction, described through hole 6 area on different sloping portions 4 constantly diminishes. Wherein, being positioned at the centre position of flat tube 1, i.e. the centre position of tube wall 3 in Fig. 2 cross sectional representation, the area of through hole 6 is maximum. Main cause is to be found through experiments, because fluid maldistribution, intermediate pressure is maximum, is gradually reduced from centre to pressure at both sides. Therefore the distribution of via area, the fluid making middle part flows to both sides as far as possible, reduce the flow resistance at middle part, cause the minimizing of heat exchange area in order to avoid perforated area is excessive simultaneously, perforated area is changed according to pressure, while reducing resistance, improve heat exchange efficiency further.

As preferably, along the centre of flat tube cross section to sidewall 12 direction, the amplitude that described through hole 6 area on different sloping portions 4 constantly diminishes is increasing. By such setting, also it is consistent with the Changing Pattern of flowing pressure, reduces while flow resistance further, improve heat exchange efficiency.

As preferably, described intercommunicating pore 6 be shaped as isosceles triangle, the midpoint on the base of described isosceles triangle is identical to the direction of drift angle and the flow direction of fluid. It is to say, the drift angle direction of isosceles triangle is fluid flow direction. It is found through experiments, is set to drift angle direction keep consistent with flow direction, it is possible to improve heat exchange efficiency, reduce flow resistance simultaneously. By such setting, it is possible to improve the heat exchange efficiency of about 10%, reduce the resistance of about 9% simultaneously.

As preferably, triangle between described adjacent sloping portion and tube wall is isosceles triangle, is called for short the second isosceles triangle later. By being set to isosceles triangle, it is ensured that fluid flowing uniformly, improves heat transfer effect.

As preferably, described sloping portion summit 5 is plane, and the summit 5 of described two adjacent sloping portions 4 is connected, and described summit 5 is connected with tube wall 3. Because arranging fixed point 5 is plane, hence in so that sloping portion 4 is big with tube wall contact area, so that tube wall more fully better contacts with sloping portion. Installation is more prone to, it is to avoid slide.

As preferably, in triangle between adjacent sloping portion 4 and tube wall, the junction point of the inner surface that sloping portion 4 is relative forms vertex of a triangle, and described vertex of a triangle is positioned on tube wall.

As it is shown in fig. 7, the drift angle of described isosceles triangle is B, such as Fig. 5, shown in 6, along the flow direction of fluid, same sloping portion 4 arranges multiple rows of triangle through hole 6. As shown in Figure 6, many exhausting holes 6 are shifted structure.

Find in an experiment, the area of through hole can not be excessive, excessive words can cause the loss of heat exchange area, reduce heat exchange efficiency, too small, cause local pressure distribution still uneven, in like manner, the distance of adjacent tube wall 3 can not be excessive, crosses conference and causes the reduction of heat exchange efficiency, and too small meeting causes that flow resistance is excessive. Find according to experiment, the drift angle of the first isosceles triangle and the change that drift angle is certain rule of the second isosceles triangle, such as the second isosceles triangle drift angle becomes big, thus causing that the passage aisle area of heat exchanger channels increases, corresponding flow resistance diminishes, and therefore now the circulation area of the second isosceles triangle will diminish, and so can reduce the area of through hole 6, when ensureing flow resistance, improve heat exchange efficiency simultaneously. Therefore there is following relation between the first isosceles triangle and the second isosceles triangle drift angle:

The drift angle of the first isosceles triangle is B, and the drift angle of the second isosceles triangle is A, then meet equation below:

Sin(B)=a+b*sin(A/2)-c*sin(A/2)²;

Wherein a, b, c are parameters, wherein 0.559 < a < 0.565,1.645 <b < 1.753,1.778 < c < 1.883;

60 �� < A < 160 ��; 35 �� < B < 90 ��.

As preferably, a=0.5631, b=1.6948, c=1.8432;

80 �� < A < 120 ��; 50 �� < B < 60 ��;

By above-mentioned formula, it may be determined that the best relation between the first isosceles triangle and the second isosceles triangle drift angle, ensure that under this relation when meeting flow resistance, reach the heat exchange efficiency of the best.

As preferably, H=7-18mm. It is further used as preferably, 10 < H < 11mm.

As preferably, the length on the first isosceles triangle base is h, meets equation below:

0.28 < d*(h/H) < 0.36; Wherein d is parameter, 0.7 < d < 2.0;

H be with the relative face of adjacent tube wall between distance.

As preferably, 1.0 < d < 1.4.

As preferably, along with drift angle is the increase of A, described d diminishes.

As preferably, along with the increase of H, described d diminishes.

The width of tube wall is W, it is preferred to 7.4 > W/H > 4.6, it is preferred that, 6.8 > W/H > 5.6.

By above-mentioned optimization design, it is possible to improve the heat exchange property of thermal-collecting tube further, reduce flow resistance simultaneously.

When the drift angle A of sloping portion formation is different, such as along the middle part of tube wall to the sidewall direction of both sides, the situation that included angle A that described adjacent sloping portion is formed is increasingly less, the A in formula above takes the meansigma methods of two drift angles that sloping portion is adjacent to calculate.

The present invention is thousands of the numerical simulations by multiple various sizes of thermal-collecting tubes and test data, under meeting industrial requirements pressure-bearing situation (below 10MPa), when realizing maximum heat exchange amount, the dimensionally-optimised relation of the best flat tube tube wall summed up.

As preferably, the base of the adjacent isosceles triangle through hole of described same row is all on one wire, the through hole distance that same row is adjacent is S1, described 2.9 �� h < S1 < 3.3 �� h, and wherein S1 is the distance at the midpoint on the base with adjacent two isosceles triangle through holes. It is preferably 3.2 �� h=S1.

As preferably, the base of the isosceles triangle of the through hole of adjacent row is parallel to each other, and the summit of isosceles triangle is L to the distance at midpoint, base, and the distance S2 of adjacent row is 3.8*L < S2 < 4.8*L. It is preferably S2=4.4*L

During the base difference of the isosceles triangle of adjacent row, the weighted mean on two bases are taked to calculate.

As preferably, the angle of the isosceles triangle of same row is identical with base. Namely shape is identical, for equal shape.

For formula above, for the through hole that front and rear row size is different, also still it is suitable for.

As preferably, the wall thickness of fin is 0.5-0.9mm; As preferably, 0.6-0.7mm.

For the concrete dimensional parameters do not mentioned, it is designed according to normal heat exchanger.

Described fin 7 is positioned only at release end of heat 10.

As preferably, such as Fig. 8, shown in 9, heat absorbing end 9 inwall of thermal-collecting tube 1 arranges inner rib plate 15.

As preferably, described inner rib plate 15 is straight tabular, the bearing of trend of inner rib plate 15 along fluid evaporator flow direction, namely along heat absorbing end 9 to release end of heat direction, moving axially along thermal-collecting tube heat absorbing end 9 in other words. By such setting so that the fluid space formed between inner rib plate keeps consistent with the flow direction of fluid, thus reducing flow resistance, also increase strengthening heat absorption simultaneously.

As preferably, along heat absorbing end 9 to release end of heat direction, inner rib plate 15 highly constantly increases, and the amplitude highly increased is increasing. By increasing inner rib plate 15 height, thus increasing the heat exchange area of inner rib plate 15. Experiment finds, by such setting, compared with identical with fin height, it is possible to improve the heat exchange efficiency of about 7%.

As preferably, as it is shown in fig. 7, along the centre of thermal-collecting tube 1 heat absorbing end 10 cross section to both sides, the height of described inner rib plate 15 constantly reduces. Wherein, being positioned at the centre position of thermal-collecting tube 1 heat absorbing end 10, the height of inner rib plate 15 is the highest.

Because being found by experiment that, thermal-collecting tube heat absorbing end is in middle part heat absorption at most, from middle part to both sides, heat absorption tapers into, therefore by arranging inner rib plate 15 height change of thermal-collecting tube, the endotherm area so making thermal-collecting tube heat absorbing end is maximum at middle part, minimum in both sides, make middle part heat absorption capacity maximum, so meet the heat absorption rule of thermal-collecting tube heat absorbing end heat so that the heat absorption of thermal-collecting tube heat absorbing end is uniformly on the whole, it is to avoid thermal-collecting tube heat absorbing end local temperature is overheated, cause radiating effect excessively poor, cause the shortening in thermal-collecting tube heat absorbing end life-span.

By above-mentioned setting, it is possible to making middle part flow resistance become big, more fluid distributes to heat absorbing end both sides so that fluid distribution is more uniform.

As preferably, from centre to both sides, the amplitude that the height of described inner rib plate 15 reduces constantly increases.

By above-mentioned setting, being also consistent with the heat absorption rule of thermal-collecting tube heat absorbing end, improve the heat absorption efficiency of thermal-collecting tube heat absorbing end further, it is ensured that the overall heat absorption of thermal-collecting tube heat absorbing end is uniform, homogeneous temperature increases the life-span of thermal-collecting tube.

As preferably, described thermal-collecting tube is gravity assisted heat pipe.

As preferably, described thermophore pipeline arranges valve 24 and temperature sensor 25, it is respectively used to the flow controlling to enter the water in thermophore 16 and the temperature detecting the water entered in thermophore 16, in like manner, described solar heat-preservation system also sets up the bypass line that thermophore pipeline is in parallel, described bypass line arranges valve 22 and temperature sensor 21, is respectively used to the temperature controlling the flow of water on bypass line and detection water. Arranging heat-storing material in described thermophore 16, described heat-storing material is preferably phase-change material. Preferably, described thermophore arranges temperature sensor, for detecting the temperature of heat-storing material. Temperature sensor in described valve 22,24 and temperature sensor 21,25 and thermophore carries out data cube computation with central controller 26.

In water tank 8, temperature sensor is set, for detecting the temperature in water tank 8, water tank 8 outlet 17 arranges temperature sensor 19, for detecting the water temperature on vessel outlet 17, vessel outlet 17 arranges outlet valve 20, the described temperature sensor in water tank 8 and temperature sensor 17, outlet valve 20 and central controller 26 data cube computation.

The main purpose of the present invention is to realize intellectualized detection and the control of solar heat-preservation system, and the present invention realizes the technique effect of the present invention by following multiple embodiments.

1. embodiment one

As an improvement, central controller 26 carrys out the opening and closing of autocontrol valve 22,24 according to the temperature of the heat-storing material of detection and the water temperature of entrance thermophore.

Preferably, in normal course of operation, valve 24 is opened, and valve 22 is closed.

If the temperature of heat-storing material is higher than the water temperature entering thermophore, then central controller 26 autocontrol valve 24 is closed, and valve 21 is opened simultaneously. Ensureing that water does not enter thermophore, because if now water enters thermophore 16, not only do not play the effect of accumulation of heat, on the contrary the heat in heat-storing material being transmitted feedwater, thus reducing accumulation of heat effect. Therefore the energy can be saved by this kind of measure.

If the water temperature of bypass line temperature sensor 21 detection is higher than the temperature of heat-storing material, central controller autocontrol valve 24 is opened, and valve 22 is closed, it is ensured that water can enter thermophore 16, plays the effect of accumulation of heat.

As preferably, described thermophore pipeline water inlet pipe arranging multiple temperature sensor 24, measure the temperature of water on thermophore pipeline water inlet pipe by multiple temperature sensors 24.

As preferably, the meansigma methods of the temperature of the water that central controller 26 is measured by multiple temperature sensors 24 controls the opening and closing of valve 22,24.

As preferably, the minimum of the temperature of the water that central controller 26 is measured by multiple temperature sensors 25 controls the opening and closing of valve 22,24. By taking minimum, it is possible to the further accuracy of data.

As preferably, at least one described temperature sensor is arranged on the accumulator inlet pipe position near thermophore 16.

As preferably, described bypass line pipeline and the junction point of thermophore pipeline are near accumulator inlet. The cold water left when thus being avoided that and store too many upper once closedown valve 24 on thermophore pipeline.

2. embodiment two

As an improvement, described central controller 26 carrys out the cut out of autocontrol valve 20,22,25 according to the temperature of the temperature in the temperature of thermophore 16 inlet tube of detection, water tank 8 and bypass line.

If the temperature of the accumulator inlet pipe of central controller 26 detection is lower than the temperature of the heat-storing material of thermophore, then central controller 26 automatic-closing valve 24 and valve 20, open valve 22. Open valve 22 to ensure that the water between valve 20 and 24 can be recycled in water tank by bypass line and be heated again, simultaneously the water not meeting temperature requirement between emptying valve 22,24. Water in water tank 8 continues through solar energy heating, and when the water temperature in water tank 8 exceedes heat-storing material temperature certain numerical value, it is preferable that more than more than 10 degrees Celsius, valve 20,24 is opened, and valve 22 is closed, so that water enters in thermophore carries out accumulation of heat.

By above-mentioned measure, it is possible to make thermophore accumulation of heat realize intelligentized control method.

As preferably, described valve 20 is arranged on vessel outlet near the position of water tank. So make on export pipeline 17 essentially without storage cold water, it is ensured that accumulation of heat effect.

As preferably, arranging multiple temperature sensor in described water tank 8, measured the temperature of water by multiple temperature sensors.

As preferably, central controller 26 controls the opening and closing of valve 20,22,24 by the meansigma methods of the temperature of the water of multiple temperature sensor measurements.

As preferably, central controller 26 controls the opening and closing of valve 20,22,24 by the minimum of the temperature of the water of multiple temperature sensor measurements. By taking minimum, it is possible to ensure that the temperature of the water of all positions in water tank 8 can both reach utilizable temperature.

As preferably, at least one described temperature sensor is arranged on the position in water tank 8 near tank entry pipe 18.

As preferably, at least one described temperature sensor is arranged on the position in water tank 8 near vessel outlet 17.

As preferably, described bypass line pipeline and the junction point of thermophore pipeline are near accumulator inlet. The cold water left when thus being avoided that and store too many upper once closedown valve 24 on thermophore pipeline.

3. embodiment three

Embodiment three is as the further improvement of embodiment two.

If the temperature of the accumulator inlet pipe of central controller 26 detection is lower than the temperature of the heat-storing material of thermophore, then central controller 26 automatic-closing valve 24 and valve 20, open valve 22. Open valve 22 to ensure that the water between valve 20 and 24 can be recycled in water tank by bypass line and be heated again. Water in water tank 8 continues through solar energy heating, when the water temperature in water tank 8 exceedes heat-storing material temperature certain numerical value, preferably greater than more than 10 degrees Celsius, valve 20 is opened, and water is flow through by bypass line, if the water temperature of bypass line sensor 21 detection exceedes the certain number of degrees of heat-storing material, such as more than 5 degrees Celsius, then bypass line valve 22 is closed, and thermophore pipeline 24 is opened, so that water enters in thermophore carries out accumulation of heat.

By above-mentioned measure, detected the temperature of water by bypass line, further increase the effect of accumulation of heat, improve the Based Intelligent Control of accumulation of heat.

Remaining technical characteristic not described is identical with embodiment two, is not just further describing.

4. embodiment four

As an improvement, solar heat-preservation system can intelligence computation heat loss. As shown in Figure 1, temperature sensor in described water tank 8 can detect the water temperature in water tank 8, described temperature sensor 25 can measure the water temperature entered in thermophore, the heat loss in solar energy system transportation can be calculated, i.e. (water temperature of the water temperature in water tank 8-entrance thermophore) �� mass flow �� specific heat of water by water temperature and flow.

Arranging effusion meter on described export pipeline 17, thermophore pipeline arranges effusion meter, said two effusion meter and central controller carry out data cube computation, calculate heat loss by the mean values of two flowmeter surveys.

Preferably, heat loss is calculated by thermophore pipeline arranges the flow of flowmeter survey.

If the heat loss of detection is excessive, then central controller sends prompting automatically. Now need whether detection fluid circuit has problems.

5. embodiment five

Passing into heat exchanger tube in described thermophore 16, described heat exchanger tube and heat-storing material 28 carry out heat exchange, and described heat exchanger tube is connected by pipeline with heat utilization device 30. Arranging valve 29 on pipeline between described heat utilization device 30 and thermophore 16, described valve 29 carries out data cube computation with central controller. Described central controller 26 carrys out the aperture of autocontrol valve 29 according to the temperature of the heat-storing material of detection.

If the temperature of the heat-storing material of detection is higher than higher limit, then central controller controls valve 29 increases aperture, to ensure that more fluid flows into participation heat exchange in thermophore, ensure making full use of of heat, if the temperature of the heat-storing material of detection is lower than certain numerical value, then central controller controls valve 29 reduces aperture, to ensure that less fluid flows into participation heat exchange in thermophore, it is ensured that add hot fluid temperature.

When if the temperature of the heat-storing material detected detected is lower than lower limit, then central controller controls valve 29 is closed, and now illustrates that the accumulation of heat of heat-storing material runs out completely.

The intellectuality that accumulation of heat utilizes can be carried out by above-mentioned intelligentized control method.

For other features in thermophore, identical with what above record, just no longer it is described in detail.

6. embodiment six

The inlet tube of described heat utilization device 30 arranges temperature sensor, is automatically detected by temperature sensor and enter the temperature of water in heat utilization device. Described temperature sensor and central controller 26 data cube computation. If the water temperature in the entrance heat utilization device of central controller 26 detection is higher than upper data, then central controller 26 controls the aperture increase of valve 29, thus increasing the fluid flow entered in thermophore 16. By increasing the temperature of the water being lowered into heat utilization device of the Fluid Volume of heat exchange. On the contrary, if the water temperature in the entrance heat utilization device of central controller 26 detection is lower than lower limit data, then central controller 26 controls the aperture reduction of valve 29, thus reducing the fluid flow entered in thermophore 16. By reducing the temperature improving the water entering heat utilization device of the Fluid Volume of heat exchange.

As preferably, the inlet tube of described heat utilization device arranging multiple temperature sensor, is measured the temperature of water by multiple temperature sensors.

As preferably, central controller 26 controls the aperture of valve 29 by the meansigma methods of the temperature of the water of multiple temperature sensor measurements.

As preferably, central controller 26 controls the aperture of valve 29 by the minimum of the temperature of the water of multiple temperature sensor measurements.

As preferably, at least one described temperature sensor is the position of close heat utilization device in being arranged on the inlet tube of heat utilization device.

By above-mentioned measure, it is possible to and ensure that the temperature entering the water of heat utilization device keeps within the specific limits such that it is able to reach utilizable temperature.

As preferably, described heat utilization device is radiator.

Although the present invention discloses as above with preferred embodiment, but the present invention is not limited to this. Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.

Claims (4)

1. a solar heat-preservation system, described system includes heat collector, thermophore, and described heat collector includes thermal-collecting tube and water tank, and described thermal-collecting tube includes heat absorbing end and release end of heat, and described release end of heat is arranged in water tank; Described thermophore is arranged on thermophore pipeline, described water tank connects formation closed circuit with thermophore, and thermal-collecting tube absorbs solar energy, the water in heating water tank, water after heating enters thermophore by vessel outlet, by heat storage in the heat-storing material of thermophore; It is characterized in that: arrange thermophore line temperature sensor on described thermophore pipeline, arranging temperature sensor in described water tank, the temperature sensor in thermophore line temperature sensor, water tank and central controller carry out data cube computation; Arranging effusion meter on tank outlet pipeline, thermophore pipeline arranges effusion meter, two effusion meters carry out data cube computation with central controller; Temperature sensor in described water tank can detect the water temperature in water tank, thermophore line temperature sensor can measure the water temperature entered in thermophore, central controller can calculate the heat loss in solar energy system transportation by water temperature and flow, i.e. heat loss=(water temperature of the water temperature in water tank-entrance thermophore) �� mass flow �� specific heat of water; Described mass flow is the numerical value of the flowmeter survey arranged on the mean values of two flowmeter surveys or thermophore pipeline.

2. solar heat-preservation system as claimed in claim 1, it is characterised in that if the heat loss of detection is excessive, then central controller sends prompting automatically.

3. solar heat-preservation system as claimed in claim 1, it is characterized in that: described thermal-collecting tube includes flat tube and fin, described flat tube includes tube wall parallel to each other and sidewall, described sidewall connects the end of parallel tube wall, fluid passage is formed between described sidewall and described parallel tube wall, described thermal-collecting tube release end of heat includes fin, described fin is arranged between tube wall, described fin includes the sloping portion favouring tube wall, described sloping portion connects with parallel tube wall, fluid passage is spaced apart the multiple passage aisles of formation by described sloping portion, adjacent sloping portion connects on tube wall, between described adjacent sloping portion and tube wall triangle, sloping portion arranges intercommunicating pore, so that adjacent passage aisle communicates with each other, intercommunicating pore is isosceles triangle, and the triangle constituted between described adjacent sloping portion and tube wall is isosceles triangle.

4. solar heat-preservation system as claimed in claim 3, it is characterised in that: the drift angle of the isosceles triangle of intercommunicating pore is B, and the drift angle of the isosceles triangle constituted between adjacent sloping portion and tube wall is A, then meet equation below:

Sin(B)=a+b*sin(A/2)-c*sin(A/2)²;

Wherein a, b, c are parameters, wherein 0.559 < a < 0.565,1.645 <b < 1.753,1.778 < c < 1.883;

60 �� < A < 160 ��; 35 �� < B < 90 ��.