CN110345454A

CN110345454A - A kind of solar steam generator of square header heat pipe structure

Info

Publication number: CN110345454A
Application number: CN201810731219.7A
Authority: CN
Inventors: 不公告发明人
Original assignee: Qingdao Baorun Technology Co Ltd
Current assignee: Heze Lujian New Material Co ltd
Priority date: 2018-07-05
Filing date: 2018-07-05
Publication date: 2019-10-18
Anticipated expiration: 2038-07-05
Also published as: CN110345454B

Abstract

The present invention provides a kind of solar steam generators, including reflecting mirror and drum, the drum is located at the focal position of reflecting mirror, solar energy reflection is used to heat the water in drum to drum by the reflecting mirror, and heat pipe is arranged in inside steam drum, and the heat pipe includes header and radiating end, it is characterized in that, the radiating end is more, and the bottom of the header is connected on the inner wall of drum, and the radiating end is square structure；The radiating end surrounds header top wall surface central point annular Multi-layers distributing.The present invention provides a kind of solar steam generators of new heat pipe structure, by the fireballing feature of adopting heat pipes for heat transfer, to improve the heat transfer rate to solar energy, be capable of the absorbability of further satisfaction heat by the way that rectangular heat pipe is arranged in drum bottom.

Description

A kind of solar steam generator of square header heat pipe structure

Technical field

The present invention relates to a kind of steam generator technology more particularly to a kind of steam generators of the heat pipe of Novel structure.

Background technique

Hot pipe technique is U.S. Los Alamos (Los Alamos) in 1963National LaboratoryGeorge Ge Luofo One kind of (George Grover) invention is known as the heat transfer of " heat pipe "Element, it takes full advantage of heat-conduction principle and phase transformation is situated between The heat of thermal objects is transmitted to outside heat source rapidly by the quick thermal transport property of matter through heat pipe, and the capacity of heat transmission is more than to appoint The capacity of heat transmission of what known metal.

The industries such as aerospace, military project were widely used in front of hot pipe technique, since being introduced into radiator manufacturing, so that People change the mentality of designing of traditional heat sinks, get rid of the list for obtaining more preferable heat dissipation effect by high air quantity motor merely One radiating mode makes radiator obtain satisfied heat transfer effect using hot pipe technique, opens heat dissipation industry new world.At present Heat pipe is widely used in various heat exchange equipments, including power domain, such as the UTILIZATION OF VESIDUAL HEAT IN of power plant etc..

Steam generator is the mechanical equipment for water being heated as using the thermal energy of fuel or other energy steam.Steam hair Raw device application field is extensive, is widely used in clothing factory, drycleaner's, restaurant, steamed bun shop,Dining room,Dining room, factories and miness,Bean productFactory etc. Place.Current steam generator is also widely used in the treatment of various diseases, be particularly applied to muscle, ligament etc. because For aging and it is old damage caused by chronic disease treatment, such as CN2167709Y patent, but at present in the prior art, such as CN2167709Y patent, because directly generating steam by heating, the vapor (steam) temperature that will lead to generation is excessively high, and will lead to The water from steam of generation point is excessive, and drug is because be that particle it is possible that will appear is deposited on lower part, the steam sprayed Middle active constituent content is too low, and temperature is excessively high, and intelligence degree is not high in the prior art, can not carry out effective intelligence Energyization operation.

In background technique, when utilizing solar energy heating steam generator, solar energy perhaps directly heats drum or passes through Secondary heat exchange generates steam, especially directly heats drum, and drum top is carried out using the heat convection of inside steam drum under The fluid convection in portion exchanges heat, but needs lower part hot fluid free convection to top in such cases, and heat exchange efficiency is low.

In addition, heat pipe heat exchanging fluid in heat exchange is all steam water interface.Heat pipe is in evaporation process, inevitably In carrying of liquids to steam end, simultaneously as the exothermic condensation of condensation end, so that there are liquid in condensation end, liquid is not yet Evitable to mix with steam, so that the fluid in heat pipe is liquid-vapor mixture, liquid-vapor mixture, which exists, causes steam mixed Exchange capability of heat declines between Cheng Yituan, with liquid, greatly affects the efficiency of heat exchange.

In view of the above-mentioned problems, the present invention is improved on the basis of invention in front, a kind of new structure is provided Solar steam generator makes full use of heat source, reduces energy consumption, improves combustion efficiency.

Summary of the invention

In view of the above-mentioned problems, the present invention is improved on the basis of invention in front, a kind of new square is provided Heat pipe structure steam generator, to realize making full use of for solar energy.

To achieve the goals above, technical scheme is as follows:

A kind of solar steam generator, including reflecting mirror and drum, the drum are located at the focal position of reflecting mirror, institute It states reflecting mirror and solar energy reflection is used to heat water in drum to drum, heat pipe is arranged in inside steam drum, and the heat pipe includes collection Case and radiating end, which is characterized in that the radiating end is more, and the bottom of the header is connected on the inner wall of drum, described Radiating end is square structure；The radiating end surrounds header top wall surface central point annular Multi-layers distributing.

Preferably, separator is arranged in the radiating end, the separator is laminated structure, the laminated structure It is arranged on the cross section of thermal-collecting tube；The separator is square through-hole and octagon through-hole composition, the square The side length of through-hole is equal to the side length of octagon through-hole, and four of the square through-hole are when being respectively four different positive eight The side of shape through-hole, four of octagon through-hole apart from one another by while be respectively four different square through-holes while.

Preferably, the radiating end is more, the bottom of the header is connected on the inner wall of drum.

A kind of solar steam generator, including reflecting mirror and drum, the drum are located at the focal position of reflecting mirror, institute It states reflecting mirror and solar energy reflection is used to heat water in drum to drum, which is characterized in that heat pipe is arranged in inside steam drum, described Heat pipe includes header and radiating end, and the bottom of drum is arranged in the header, and the radiating end is connected to header, the radiating end It is upwardly extended since collecting upper box part, the radiating end is more, and the bottom of the header is connected on the inner wall of drum.

Preferably, the bottom of the header is the inner wall of drum.

Preferably, communicating pipe is arranged between at least two adjacent heat pipes.

Preferably, the drum and heat pipe are to be integrated.

Preferably, the lower wall surface of the header is the face of the bottom of drum.

Preferably, the heat pipe surrounds header top wall surface central point annular Multi-layers distributing.

Preferably, be arranged multilayer heat pipe along header top wall surface central point, the axis of every layer of heat pipe and central point Apart from identical, to be formed using header top wall surface central point as the arc structure in the center of circle.

Preferably, the side length of 3 square section of radiating end is B2 in horizontal plane projection, the adjacent of same layer dissipates The distance between hot end center of circle is L, and the center of circle of radiating end and two closed on the radiating end center of circle of adjacent row constitute isoceles triangle The apex angle of shape is N, and diameter of a circle D2 where same layer, the diameter of a circle D1 of adjacent inner layer then meet claimed below:

Sin (N)=a-b*S²- c*S, S=d*B2/ (D2-D1), a, b, c are parameters, meet following require:

0.846<a<0.848,0.529<b<0.530,0.846<c<0.848；1.128<d<1.129；

Preferably, a=0.847, b=0.5292, c=0.847, d=1.1286.

0.33<B2/L<0.6。

Preferably, gradually becoming smaller with B2/L, a is increasing, and b is smaller and smaller, and c is increasing.

Compared with prior art, the present invention has the advantage that:

1) present invention improves solar steam generator, by the way that square heat pipe is arranged in drum bottom, leads to Solar energy is quickly transmitted to the top of drum by the fast feature of superheater tube heat transfer rate, improves the Heat transmission speed to solar energy Degree, is capable of the absorbability of further satisfaction heat.

2) separation of the Novel structure combined the present invention provides a kind of new-type square through-hole and octagon through-hole The solar thermal collector of device, by square and octagon, so that the side shape of the square hole and octagon hole that are formed At angle be all greater than equal to 90 degree so that fluid can sufficiently flow through each position in each hole, avoid or subtract The short circuit of few fluid flowing.Two-phase fluid is separated into liquid and gas by the separator of Novel structure by the present invention, by liquid It is mutually divided into small liquid group, gas phase is divided into minute bubbles, inhibits the reflux of liquid phase, promotes gas phase smooth outflow, plays stationary flow The effect of amount improves heat transfer effect.Separator in compared with the existing technology, further increases steady flow result, augmentation of heat transfer, And it is simple to manufacture.

3) present invention is by being reasonably laid out, so that square and octagon through-hole are evenly distributed, so that whole On rank street face on fluid segmentation uniformly, avoid the segmentation of ring structure in the prior art circumferentially and unevenly ask Topic.

4) present invention is uniformly distributed by the interval of square hole and octagon hole, so that macropore and aperture are whole Body is evenly distributed on cross section, and by the change in location of the macropore of adjacent separator and aperture, so that segregation More preferably.

5) present invention is laminated structure by setting separator, so that separator structure is simple, cost is reduced.

6) hole that the present invention passes through the distance, separator that are arranged between adjacent separator in absorbing pipe short transverse Side length, the parameters size such as caliber, the tube spacing of absorbing pipe rule variation, have studied the optimal relationship ruler of above-mentioned parameter It is very little, to further reach steady flow result, noise is reduced, improves heat transfer effect.

7) present invention is conducted extensive research by heat exchange rule caused by the variation to separator parameters, In the case of meeting flow resistance, the best relation formula of heat transfer effect is realized.

8) a kind of solar thermal collector of Novel structure is provided, by the way that balance tube is arranged between thermal-collecting tube, ensure that Pressure is uniform in each thermal-collecting tube, fluid flow it is evenly distributed and fluid motion resistance evenly distributed.

Detailed description of the invention

Fig. 1 is solar steam generator structural schematic diagram of the present invention.

Fig. 2 is the structural schematic diagram of steam generator setting communicating pipe of the present invention.

Fig. 3 is heat pipe horizontal plane projection structure schematic diagram of the present invention.

Fig. 4 is control structure schematic diagram of the present invention.

Fig. 5 separator cross-sectional structure schematic diagram of the present invention；

Another cross-sectional structure schematic diagram of Fig. 6 separator of the present invention；

Fig. 7 is separator of the present invention arrangement schematic diagram in thermal-collecting tube；

Fig. 8 is that separator of the present invention arranges cross-sectional view in thermal-collecting tube；

In figure: 1- reflective mirror, 2- drum, 3-heat pipes, 4- separator, 41 square through-holes, 42 octagon through-holes, 43 Side, 5- steam (vapor) outlet, 6- communicating pipe, 7- central controller, 8- header, 9- water inlet

Specific embodiment

Specific embodiments of the present invention will be described in detail with reference to the accompanying drawing.

Herein, if without specified otherwise, it is related to formula, "/" indicates that division, "×", " * " indicate multiplication.

A kind of solar steam generator using heat pipe is disclosed picture 1-4, and the steam generator includes reflecting mirror 1 With drum 2, the drum 2 is located at the focal position of reflecting mirror 1, and solar energy reflection is used to heat by the reflecting mirror 1 to drum 2 Water in drum 2, the steam generator further include the heat pipe being arranged in drum 2, as shown in Figure 1, heat pipe setting exists Inside drum 2, the heat pipe includes header 8 and radiating end 3, and the header 8 is arranged in the bottom of drum 2, the radiating end 3 with Header 8 is connected to, and the radiating end 3 is upwardly extended since 8 top wall surface of header, and the radiating end 3 is more, the header 8 Bottom be connected on the inner wall of drum 2.

Traditional solar steam generator is all to generate steam by direct irradiation of sunlight drum, utilizes inside steam drum Heat convection carry out the fluid convection heat exchange of drum upper and lower part, but need lower part hot fluid natural in such cases It is by convection into top, heat exchange efficiency is low, and the present invention is by being arranged heat pipe in drum bottom, because the gas of the inside is vertical after heat pipe is heated The evaporation ends for carving the top for the heat pipe that evaporation rises, exchange heat on top, and such heat is just quickly transmitted to drum top, Heat exchange efficiency can be quickly improved, solar energy heating utilization rate is improved.

The present invention, can by heat first being concentrated in header, heat pipe heat radiation end is then passed in lower end setting header Quickly to transfer heat away from.

Preferably, the bottom of the header 8 is the inner wall of drum 2.Heat pipe and drum is made to can be used as one in this way It is whole, using the inner wall of drum as the lower end wall surface of heat pipe, thermal contact resistance is reduced, so that compact overall structure,

Preferably, the drum and heat pipe are to be integrated.

Because solar energy is absorbed, so that stream-liquid two-phase flow occurs in heat pipe, so that the fluid in heat pipe is vapour in heat pipe Liquid mixture.Therefore this invention takes new structures, to divide liquid and vapor capacity, so that heat exchange is reinforced.

Separator 4 is set in heat pipe, and the structure of the separator 4 is as shown in Figure 5,6.The separator 4 is piece Shape structure, the laminated structure are arranged on the cross section of heat pipe 3；The separator 4 is square and octagon structure Composition, to form square through-hole 41 and octagon through-hole 42.The side length of square through-hole 41 as described in Figure 5 is equal to positive eight The side length of side shape through-hole 42, four of the square through-hole while 43 be respectively four different octagon through-holes while 43, Positive eight deformation four of through-hole apart from one another by while 43 be respectively four different square through-holes while 43.

The present invention uses the separator of Novel structure, has the advantages that

1) separation of the Novel structure combined the present invention provides a kind of new-type square through-hole and octagon through-hole Device, by square and octagon, so that the angle that the side of the square hole and octagon hole that are formed is formed all is big In being equal to 90 degree, so that fluid can sufficiently flow through each position in each hole, the short of fluid flowing is avoided or reduced Road.Two-phase fluid is separated into liquid and gas by the separator of Novel structure by the present invention, and liquid phase is divided into small liquid group, Gas phase is divided into minute bubbles, inhibits the reflux of liquid phase, promotes gas phase smooth outflow, plays the role of regime flow, has and subtracts The effect of vibration noise reduction, improves heat transfer effect.Separator in compared with the existing technology further increases steady flow result, strengthens Heat transfer, and be simple to manufacture.

2) present invention is by being reasonably laid out, so that square and octagon through-hole are evenly distributed, so that whole On rank street face on fluid segmentation uniformly, avoid the segmentation of ring structure in the prior art circumferentially and unevenly ask Topic.

3) present invention is uniformly distributed by the interval of square hole and octagon through-hole, so that macropore and aperture exist It is evenly distributed on whole cross section, and by the change in location of the macropore of adjacent separator and aperture, so that separating effect Fruit is more preferable.

4) present invention is laminated structure by setting separator, so that separator structure is simple, cost is reduced.

The present invention is equivalent to by setting square hole and octagon separator and increases interior heat exchange in heat exchanger tube Area enhances heat exchange, improves heat transfer effect.

The present invention is because all cross-section locations by gas-liquid two-phase in heat exchanger tube are divided, thus entirely exchanging heat The segmentation of gas-liquid interface and gas phase boundary and the contact area of cooling wall are realized on tube section and enhances disturbance, greatly Noise and vibration are reduced, heat transfer is enhanced.

Preferably, the separator includes two types, such as Fig. 5, shown in 6, the first seed type is square center Separator, square are located at the center of heat pipe or condenser pipe, as shown in Figure 6.Second is octagon center separation dress It sets, octagon is located at the center of heat pipe, as shown in Figure 5.Preferably as one, the separator of above two type is adjacent to be set It sets, that is, the separator type being disposed adjacent is different.I.e. adjacent with square center separator is octagon center point From device, adjacent with octagon center separator is square center separator.The present invention by square hole and The interval in octagon hole is uniformly distributed, so that macropore and aperture are evenly distributed on whole cross section, and passes through phase The macropore of adjacent separator and the change in location of aperture, so that passing through aperture followed by aperture by the fluid of macropore Fluid followed by macropore, further progress separates, and promotes the mixing of vapour-liquid, so that separating and heat transfer effect is more preferable.

Preferably, the cross section of the radiating end 3 is square or circle.

Preferably, the multiple separators of setting in radiating end 3, along 3 lower to upper part direction of radiating end, separator Between spacing constantly become smaller.If the distance of the entrance apart from radiating end 3 is H, the spacing between adjacent separator is S, S= F₁(H), i.e. S is using height H as the function of variable, and S ' is the first order derivative of S, meets following require:

S'<0；

Main cause is because hot liquid in pipe is constantly heated to generate steam, and in uphill process, steam is constantly more next It is more, cause the steam in biphase gas and liquid flow more and more, because the vapour phase in stream-liquid two-phase flow is more and more, changing in heat pipe Thermal energy power can increase with vapour phase and weaken relatively, and vibration and its noise also can constantly increase as vapour phase increases.Therefore The distance between the adjacent separator for needing to be arranged is shorter and shorter.

It is found through experiments that, by above-mentioned setting, can both reduce vibration and noise to the full extent, while can mention High heat transfer effect.

Further preferably along 3 lower to upper part direction of radiating end, the distance between adjacent separator is shorter and shorter Amplitude is continuously increased.That is S " is the second derivative of S, meets following require:

S">0；

It is found through experiments that, by being improved simultaneously so set, 7% or so vibration and noise can be further decreased 8% or so heat transfer effect.

Preferably, along 3 lower to upper part direction of radiating end, square side length is smaller and smaller.Under heat pipe The distance at end is H, and square side length is C, C=F₂(H), C ' is the first order derivative of C, meets following require:

C'<0；

Further preferably, along 3 lower to upper part direction of radiating end, the smaller and smaller amplitude of square side length is continuous Increase.C " is the second derivative of C, meets following require:

C”>0。

Specific reason changes referring to front separator spacing.

Preferably, the distance between adjacent separator remains unchanged.

Preferably, gap is arranged in the heat pipe inner wall, the outer end of the separator is arranged in gap.

Preferably, heat pipe is welded for multi-segment structure, separator is arranged in the junction of multi-segment structure.

It is learnt by analyzing and testing, the spacing between separator cannot be excessive, leads to damping noise reduction if excessive And the effect separated is bad, and while it can not be too small, cause resistance excessive if too small, similarly, square side length is not yet Can be too large or too small, the effect for also resulting in damping noise reduction is bad or resistance is excessive, therefore the present invention pass through it is a large amount of real Test, preferentially meet normal flow resistance (total pressure-bearing be 2.5Mpa hereinafter, the on-way resistance of single heat pipe be less than or equal to In the case where 5Pa/M), so that being optimal of damping noise reduction, has arranged the optimal relationship of parameters.

Preferably, the distance between adjacent separator is M1, the side length of square through-hole is B1, and radiating end 3 is positive Square-section, the side length of 3 square section of radiating end are B2, meet following require:

M1/B2=a*Ln (B1/B2)+b

Wherein a, b are parameters, wherein 1.739 < a < 1.740,5.00 <b < 5.10；

11<B2<46mm；

1.9<B1<3.2mm；

18<M1<27mm。

20°<A<60°。

Preferably, 30 ° < A < 50 °.

Further preferably, with the increase of B1/B2, a is smaller and smaller, and b is increasing.

Preferably, a=1.7395, b=5.05；

Preferably, the side length B1 of square through-hole is the average value of side length and outer side length in square through-hole, heat pipe is just The side length B2 of square-section is the average value of side length and outer side length in heat pipe.

Preferably, the outer side length of square through-hole is equal to the interior side length of heat pipe square section.

Preferably, with the increase of B2, B1 is also continuously increased.But with the increase of B2, the ever-increasing amplitude of B1 It is smaller and smaller.This rule variation is obtained by a large amount of numerical simulation and experiment, and the variation of above-mentioned rule, Neng Goujin are passed through One step improves heat transfer effect, reduces noise.

Preferably, with the increase of B2, M1 constantly reduces.But with the increase of B2, the ever-reduced amplitude of M1 is got over Come smaller.This rule variation is obtained by a large amount of numerical simulation and experiment, can be into one by the variation of above-mentioned rule Step improves heat transfer effect, reduces noise.

It is learnt by analyzing and testing, the spacing of radiating end 3 will also meet certain requirements, such as cannot excessive or mistake It is small, no matter it is too large or too small all heat transfer effect can be caused bad, and because the application heat pipe in be provided with separator, because Also opposite heat tube spacing there are certain requirements this separator.Therefore the present invention through a large number of experiments, meets normal stream preferential Dynamic resistance (total pressure-bearing be 2.5Mpa hereinafter, single heat pipe on-way resistance be less than or equal to 5Pa/M) in the case where so that subtracting Being optimal of noise reduction is shaken, the optimal relationship of parameters has been arranged.

The distance between adjacent separator is M1, and square side length is B1, and heat pipe is square section, radiating end 3 Side length be B2, the spacing between 3 center of adjacent heat radiation end is that M2 meets following require:

M2/B2=d* (M1/B2)²+e-f*(M1/B2)³-h*(M1/B2)；

Wherein d, e, f, h are parameters,

1.239<d<1.240,1.544<e<1.545,0.37<f<0.38,0.991<h<0.992；11<B2<46mm；

1.9<B1<3.2mm；

18<M1<27mm。

16<M2<76mm。

Spacing between adjacent heat tube hub is that M2 refers to the distance between heat pipe center line.

Further preferably, d=1.2393, e=1.5445, f=0.3722, h=0.9912；

Preferably, d, e, f is increasing with the increase of M1/B2, h is smaller and smaller.

Preferably, M2 is continuously increased with the increase of B2, but with the increase of B2, the ever-increasing amplitude of M2 is got over Come smaller.This rule variation is obtained by a large amount of numerical simulation and experiment, can be into one by the variation of above-mentioned rule Step improves heat transfer effect.

Preferably, 3 length of radiating end is between 800-1200mm.Further preferably, 1000mm.

Preferably, communicating pipe 6 is arranged between at least two adjacent radiating ends 3.Such as it is as shown in Fig. 2, adjacent to each other Two radiating ends 3 between be arranged communicating pipe 6.Certainly, Fig. 2 is only schematic diagram, although showing only two heat pipes, simultaneously Only two heat pipes are not shown., can be even to avoid uneven heating between radiating end 3 by the way that communicating pipe 6 is arranged, it realizes between heat pipe Pressure it is balanced, defect caused by avoiding the uneven heating between different heat pipes even.

Preferably, being continuously increased the distance between adjacent communicating pipe 6 from 3 lower part of radiating end to 3 top of radiating end.Cause Solar energy, the then heat release in drum are absorbed in bottom for heat pipe.With flowing up for heat pipe vertical portion fluid, fluid is not Disconnected heat release, with the continuous heat release of fluid, the pressure in different heat pipes is gradually decreased, therefore passes through above-mentioned setting, Neng Goubao Card reaches pressure equilibrium as soon as possible in process fluid flow, saves communicating pipe quantity, energy-saving material.

Preferably, from 3 lower part of radiating end to 3 top of radiating end, the distance between adjacent communicating pipe 6 ever-increasing width It spends increasing.It is found through experiments that, above-mentioned setting, can guarantee that more excellent in process fluid flow to reach pressure equal faster Weighing apparatus.This is also the optimal mode of communicating got and largely studying pressure changes in distribution rule.

Preferably, from 3 lower part of radiating end to 3 top of radiating end, the diameter of communicating pipe 6 constantly reduces.This purpose be for Setting guarantees bigger connection area, because of flowing up with fluid, the continuous heat release of fluid, as fluid is continuous Heat release, the pressure in different heat pipes is smaller and smaller, therefore by above-mentioned setting, can guarantee in process fluid flow as soon as possible Reach pressure equilibrium.

Preferably, the ever-reduced amplitude of the diameter of communicating pipe 6 is increasingly from 3 lower part of radiating end to 3 top of radiating end Greatly.Be found through experiments that, above-mentioned setting, can guarantee in process fluid flow it is more excellent faster reach pressure equilibrium.This It is the optimal mode of communicating got and largely studying pressure changes in distribution rule.

Preferably, the center of drum is located at the focal position of reflecting mirror.It is located at reflector focal point position by drum center It sets, it is ensured that drum Omnidirectional heating is uniform.

Preferably, medical fluid is arranged in the drum.The steam generator is a kind of steaming of drug fumigation in treating function Vapour generator.

Preferably, drum includes water inlet 4 and steam (vapor) outlet 5, the steam of generation is directly gone out from steam (vapor) outlet 5.

Alternatively, the steam generator further includes medical fluid evaporation tank, and the medical fluid evaporation tank passes through pipeline It is connected to drum 3, atomizer is set in the medical fluid evaporation tank, steam (vapor) outlet is arranged in the medical fluid evaporation tank.

Drug is set in the drum, the drug immersion in water, in use, being added in drum by heat pipe Hot water, by water come Heating Drug, to generate medical fluid in drum 2.The medical fluid of generation enters medical fluid evaporation tank by pipeline It is interior, and be atomized in medical fluid evaporation tank, then it is discharged by steam (vapor) outlet.Steam (vapor) outlet can be directly against the life of patient Sick position discharge, for treating.

The radiating end 3 be it is multiple, along header top wall surface central point radially outward direction, the radiating end 3 Distribution density it is smaller and smaller.Numerical simulation and it was found that, along drum bottom center radially outward direction, heat The received heat of pipe is smaller and smaller, and the temperature of the heat pipe of different location is also different, to cause local heating uneven.Because Closer to center, the solar energy of focusing is more, and received heat is increasing, and exchange capability of heat is caused also to increase, and therefore, the present invention is logical The density difference in the different location setting radiating end 3 of drum bottom is crossed, so that the integral heat pipe temperature made keeps essentially identical, To improve whole heat exchange efficiency, material is saved, avoids local damage caused by non-uniform temperature, extends making for radiating end 3 Use the service life.

Preferably, along header top wall surface central point radially outward direction, the distribution density of the radiating end 3 is got over Carry out smaller amplitude constantly to increase.As the variation of 3 distribution density of radiating end, the present invention carried out a large amount of numerical simulation and Experiment, to obtain the changing rule of above-mentioned 3 distribution density of radiating end.By above-mentioned changing rule, material can be saved, 9% or so heat exchange efficiency can also be improved simultaneously.

Preferably, the diameter and length of each radiating end 3 are identical.

Preferably, the radiating end 3 be it is multiple, along header top wall surface central point radially outward direction, institute The caliber for stating radiating end 3 is smaller and smaller.The reason of concrete reason is with front heat pipe distribution density is identical.

Preferably, the caliber of the radiating end 3 is increasingly along header top wall surface central point radially outward direction Small amplitude constantly increases.The reason of concrete reason is with front 3 distribution density of radiating end is identical.

Preferably, the distribution density and length of all radiating ends 3 are all identical.

Preferably, as shown in figure 3, from top downwards from, or horizontal plane projection on, the radiating end 3 surrounds Header top wall surface central point annular Multi-layers distributing.

Preferably, radiating end 3 is arranged in center position, multi-layer heat dissipation end 3, every layer of radiating end 3 are set along central point Axis it is identical at a distance from central point, thus formed using the central point of drum bottom as the arc structure in the center of circle.

Preferably, the line at the midpoint of the relative edge of the square radiating end extends past the center of circle.

Pass through numerical simulation and experiment discovery, the distance between radiating end 3, including the distance and phase at same diametrical position The distance between adjacent bed cannot be too small, and the too small radiating end 3 that will lead to is distributed the caloric receptivity deficiency for excessively leading to every radiating end 3, The excessive radiating end 3 that will lead to is distributed very little, and radiating end 3 is caused to overheat, therefore the application is by a large amount of numerical simulation and experiment, The distribution for carrying out the optimization of the distribution of radiating end 3, the deficiency so that heat pipe can neither recept the caloric are summed up, and it is excessive to recept the caloric.

As shown in figure 3, the diameter of the header top wall surface is D, the side length of 3 square section of radiating end is B2, together The circular arc of one layer of adjacent heat pipe central axis is N, and the distance between adjacent heat pipe center of circle of same layer is L, the circle The center of circle of arc is the central axis of storage heater, diameter of a circle D2, the diameter of a circle D1 of adjacent inner layer where same layer, then under meeting Face requires:

0.846<a<0.848,0.529<b<0.530,0.846<c<0.848；1.128<d<1.129；

Preferably, a=0.847, b=0.5292, c=0.847, d=1.1286.

Preferably, gradually becoming smaller with D2/D, a is increasing, b, and c is smaller and smaller.

Preferably, 0 ° < N < 120 °.

Preferably, 10 ° < N < 70 °.

Above-mentioned empirical equation is to be obtained by a large amount of numerical simulations and experiment, and pass through verification experimental verification, and error is substantially Within 3%.

Preferably, the heat absorption capacity 900-1100W of heat pipe, further preferably 1000W；

D is 900-1100 millimeters, further preferably 1000 millimeters.

Certainly, Fig. 3 shows only 3 layers of heat pipe, can actually be more than three layers.D2, D1 of Fig. 3 is also only an act Example, can actually be using the heat pipe of central axis as the layer where D1, i.e. D1=0, using current D1 as the layer where D2.

Fig. 3 shows only half, the other half is symmetrical therewith, is just not described in detail.

Preferably, temperature sensor is arranged in the drum 3, for measuring the temperature of water in drum 3.

Preferably, water level sensor is arranged in the drum 3, for measuring the water level in drum.

Preferably, pressure sensor is arranged in 3 top of drum, for measuring pressure in drum 3.

Preferably, flow sensor is set on the steam (vapor) outlet 5, the steam stream for cooling water of units of measurement time output Amount.

Preferably, temperature sensor is arranged on the steam (vapor) outlet 5, for measuring the vapor (steam) temperature of outlet.

Preferably, the temperature sensor, water level sensor, 7 data of pressure sensor, flow sensor and controller Connection.

Preferably, electric heater is arranged in the drum, avoid in the insufficient situation of solar energy for supplementary heating.

(1) outlet steam temperature controls

Temperature sensor 7 is arranged in the steam (vapor) outlet position, for measuring the temperature of steam (vapor) outlet；The temperature sensing 7 data connection of device, electric heater and controller, the controller automatically control electricity according to the temperature of temperature sensor measurement and add The heating power of thermal, if the temperature of temperature sensor measurement is lower than certain temperature, controller controls electric heating dress Set starting heating；If the temperature of temperature sensor measurement is higher than certain temperature, controller, which controls electric heater unit, to be stopped adding Heat.

Preferably, controller improves electricity automatically if the temperature data of temperature sensor measurement is lower than the first numerical value The heating power of heating device, if the temperature data of temperature sensor measurement is higher than second value, controller reduces automatically The heating power of electric heater unit, the second value are greater than the first numerical value.

Preferably, when the temperature of measurement be lower than the first temperature when, electric heater unit starting heating, and with the first power into Row heating；When the temperature of measurement is lower than the second temperature lower than the first temperature, electric heater unit is to be higher than the of the first power Two power are heated；When the temperature of measurement is lower than the third temperature lower than second temperature, electric heater unit is to be higher than second The third power of power is heated；When the temperature of measurement be lower than four temperature lower than third temperature when, electric heater unit with The 4th power higher than third power is heated；When the temperature of measurement is lower than five temperature lower than the 4th temperature, electricity adds Thermal is heated with the 5th power for being higher than the 4th power.

Preferably, the first temperature is greater than 8-10 degrees Celsius of second temperature, it is Celsius that second temperature is greater than third temperature 8-10 Degree, third temperature are greater than the 4th 8-10 degrees Celsius of temperature, and the 4th temperature is greater than the 5th 8-10 degrees Celsius of temperature.

Preferably, the first temperature is greater than 9 degrees Celsius of second temperature, second temperature is greater than 9 degrees Celsius of third temperature, third Temperature is greater than 9 degrees Celsius of the 4th temperature, and the 4th temperature is greater than 9 degrees Celsius of the 5th temperature.

Preferably, the 5th power is 1.1-1.3 times of the 4th power, the 4th power is 1.1-1.3 times of third power, Third power is 1.1-1.3 times of the second power, and the second power is 1.1-1.3 times of the first power.

Preferably, the 5th power is 1.1-1.15 times of the 4th power, the 4th power is the 1.15-1.2 of third power Times, third power is 1.2-1.25 times of the second power, and the second power is 1.25-1.3 times of the first power.

By intelligent controlled electrical heater heating power, to guarantee the steam temperature exported in the insufficient situation of solar energy Degree meets needs, can be further improved the intelligence of system.

(2) hot water temperature controls

Preferably, temperature sensor is arranged in the drum 3, for measuring the temperature of water in drum 3.The temperature passes 7 data connection of sensor, electric heater and controller, the controller 7 are automatically controlled according to the temperature of temperature sensor measurement The heating power of electric heater unit, if the temperature of temperature sensor measurement is lower than certain temperature, controller 7 controls electricity and adds Thermal starting heating；If the temperature of temperature sensor measurement is higher than certain temperature, controller 7 controls electric heater unit and stops Only heat.

The controller 7 automatically controls the heating power of electric heater unit according to the temperature of temperature sensor measurement.

Preferably, controller controls electric heating dress if the temperature of temperature sensor measurement is lower than certain temperature Set starting heating.If the temperature of temperature sensor measurement is higher than certain temperature, such as higher than dangerous critical-temperature, then for It avoids overheating, controller controls electric heater unit and stops heating.

Preferably, controller 7 improves adding for electric heater unit automatically if detection temperature data is lower than the first numerical value Thermal power, if the temperature data of measurement is higher than second value, controller 7 reduces the heating power of electric heater unit automatically, The second value is greater than the first numerical value.

Preferably, the first temperature is greater than 4-6 degrees Celsius of second temperature, second temperature is greater than 4-6 degrees Celsius of third temperature, Third temperature is greater than the 4th 4-6 degrees Celsius of temperature, and the 4th temperature is greater than the 5th 4-6 degrees Celsius of temperature.

Further preferably, the first temperature is greater than 5.5-6 degrees Celsius of second temperature, and second temperature is greater than third temperature 5-5.5 Degree Celsius, third temperature is greater than the 4th 4.5-5 degrees Celsius of temperature, and the 4th temperature is greater than the 5th 4-4.5 degrees Celsius of temperature.

It, can be with especially by the setting of differential heating power and the temperature difference by the preferred of above-mentioned temperature and power Heating efficiency is further increased, the time is saved.It is found through experiments that, can be improved the heating efficiency of 10-15% or so.

Preferably, the temperature sensor is arranged on the bottom wall of drum.

Preferably, the temperature sensor be it is multiple, the temperature data of the controller foundation is multiple temperature sensing The temperature of device measurement, to control the operation of steam generator.

By intelligent controlled electrical heater heating power, to guarantee that hot water temperature meets in the insufficient situation of solar energy It needs, to be further ensured that the vapor (steam) temperature of output is met the requirements, can be further improved the intelligence of system.

(3) water level control

Preferably, water level sensor, 7 data of the water level sensor, water pump and controller are arranged in the drum 3 Connection, the controller 7 is according to the power of the water level automatically controlled water pump in the drum 3 of measurement.Preferably, if under water level Drop, controller are then led to increase the flow of the water into drum 3 if water level is excessively high by the power that control improves water pump It crosses the power for reducing water pump or switches off the pump to reduce into water flow in drum 3 or stop supplying water into drum 3.

By above-mentioned setting, on the one hand avoid water level it is too low caused by steam generation rate is too low and electric heater unit Dry combustion method, cause electric heater unit damage and generate safety accident, on the other hand, avoiding and being caused because water level is excessively high Water it is excessive, realize the intelligent control of water level.

Preferably, controller 7 is controlled water pump and is supplied with the first power when the water level of measurement is lower than the first water level Water；When the water level of measurement is lower than second water level lower than the first water level, controller 7 controls water pump to be higher than the of the first power Two power supply water；When the water level of measurement is lower than the third water level lower than the second water level, controller 7 controls water pump to be higher than The third power of second power supplies water；When the water level of measurement is lower than four water level lower than third water level, controller 7 is controlled Water pump processed is supplied water with the 4th power for being higher than third power；When the water level of measurement is lower than fiveth water level lower than the 4th water level When, controller 7 is controlled water pump and is supplied water with the 5th power for being higher than the 4th power.

Preferably, the first water level is 1.1-1.3 times of the second water level, the second water level is 1.1-1.3 times of third water level, Third water level is 1.1-1.3 times of the 4th water level, and the 4th water level is 1.1-1.3 times of the 5th water level.

Preferably, the first water level is 1.1-1.15 times of the second water level, the second water level is the 1.15-1.2 of third water level Times, third water level is 1.2-1.25 times of the 4th water level, and the 4th water level is 1.25-1.3 times of the 5th water level.

Preferably, the 5th power is 1.7-1.9 times of the 4th power, the 4th power is 1.6-1.8 times of third power, Third power is 1.5-1.7 times of the second power, and the second power is 1.3-1.5 times of the first power.

By the preferred of above-mentioned water level and pump power, especially by the setting of differential water level and pump power, It can quickly realize the constant of water level, improve steam generation rate, save the time.It is found through experiments that, can be improved 12- 16% or so steam output.

By the power of intelligent control water pump, to guarantee to meet the requirements in water level, excessively high or too low, Ke Yijin is avoided The intelligence of one step raising system.

(4) control according to water level to heating power

Preferably, water level sensor, the water level sensor, electric heater and controller 7 are arranged in the drum 3 Data connection, the controller 7 is according to the heating power of the water level automatic controlled electric heater in the drum 3 of measurement.As excellent Choosing, if water level is too low, controller if, which passes through control, to reduce the power of electric heater or directly closes the heating of electric heater, To avoid causing further decreasing for water level because steam output caused by heating power is excessively high is excessive, if water level is excessively high, Then by increasing the heating power of electric heater, steam output is improved, to reduce water level.

By above-mentioned setting, the too low dry combustion method for causing electric heater unit of water level is on the one hand avoided, electric heating is caused to fill The damage set and generate safety accident, on the other hand, avoid because water level is excessively high and caused by water in drum it is excessive.

Preferably, when the water level of measurement be lower than the first water level when, controller 7 control electric heater unit with the first power into Row heating；When the water level of measurement is lower than second water level lower than the first water level, controller 7 controls electric heater unit lower than the Second power of one power is heated；When the water level of measurement is lower than the third water level lower than the second water level, controller 7 is controlled Electric heater unit is heated with the third power lower than the second power；When the water level of measurement is lower than the lower than third water level the 4th When water level, controller 7 is controlled electric heater unit and is heated with the 4th power lower than third power；When the water level of measurement is lower than When lower than the 4th water level five water level, controller 7 is controlled electric heater unit and is added with the 5th power lower than the 4th power Heat；When the water level of measurement is lower than six water level lower than the 5th water level, controller 7 controls electric heater unit and stops heating.

Preferably, the first power is 1.6-1.7 times of the second power, the second power is 1.5-1.6 times of third power, Third power is 1.4-1.5 times of the 4th power, and the 4th power is 1.3-1.4 times of the 5th power.

By the preferred of the power of above-mentioned water level and electric heater unit, filled especially by differential water level and electric heating The setting for the power set, can quickly realize water level in scheduled home, and water level is excessively high when, can protect Steam generation rate is demonstrate,proved, the time is saved.

(5) pressure controls

Preferably, pressure sensor is arranged in 3 top of drum, for measuring pressure in drum 3.The pressure sensing 7 data connection of device, electric heater unit and controller, the controller 7 are automatically controlled according to the pressure that pressure sensor measures The heating power of electric heater unit.Preferably, if the pressure of pressure sensor measurement is lower than certain pressure, controller 7 control electric heater unit starting heating.If the temperature of pressure sensor measurement is higher than pressure upper limit, in order to avoid pressure mistake It is big to generate dangerous, controller control electric heater unit stopping heating.

By so set, heating power can be adjusted according to the pressure in drum 3, to guarantee maximizing steam In the case where output, guarantee the safety of steam generator.

Preferably, controller 7 controls electric heater unit if the pressure of pressure sensor measurement is lower than a certain numerical value Improve heating power.If the temperature of pressure sensor measurement is higher than certain numerical value, in order to avoid the excessive generation of pressure is dangerous, Controller, which controls electric heater unit, reduces heating power.

Preferably, controller 7 controls the heating power drop of electric heater unit when the pressure of measurement is higher than first pressure It is heated as low as the first power；When the pressure of measurement is higher than the second pressure higher than first pressure, controller 7 controls electricity and adds The heating power of thermal is reduced to second power lower than the first power to be heated；When the pressure of measurement is higher than than the second pressure When the high third pressure of power, the heating power that controller 7 controls electric heater unit is reduced to the third power lower than the second power It is heated；When the pressure of measurement is higher than four pressure higher than third pressure, controller 7 controls the heating of electric heater unit Power is reduced to fourth power higher than third power to be heated；When the pressure of measurement is higher than fiveth pressure higher than the 4th pressure When power, controller 7 stops the heating of electric heater unit.

Preferably, the 4th power is 0.4-0.6 times of third power, third power is 0.6-0.8 times of the second power, Second power is 0.7-0.9 times of the first power.

Further preferably, preferably, the 4th power is 0.5 times of third power, third power is the 0.7 of the second power Times, the second power is 0.8 times of the first power.

5th pressure is exactly pressure upper limit.

The upper position of drum is arranged in the pressure sensor.

Preferably, the pressure sensor be it is multiple, the pressure data of the controller foundation is multiple pressure sensings The temperature of device measurement, to control the operation of steam generator.

(6) steam flow controls

Preferably, the steam outlet pipe road setting flow sensor, the steam for cooling water of units of measurement time output Flow, 7 data connection of the flow sensor, electric heater and controller.The controller 7 is according to the unit of sensor measurement The steam flow data of time output automatically control the heating power of electric heater unit.Preferably, if the steam of measurement Flow is lower than certain numerical value, then controller 7 controls electric heater unit and heated or increased heating power.If pressure passes The temperature of sensor measurement is higher than certain numerical value, and controller controls electric heater unit and reduces heating power or stop heating.

By so set, heating power, guarantee steam can be adjusted according to the quantity of steam that steam generator generates Output quantity it is constant, avoid quantity too large or too small, cause quantity of steam insufficient or waste.

Preferably, controller 7 controls the heating power drop of electric heater unit when the flow of measurement is higher than first flow It is heated as low as the first power；When the flow of measurement is higher than the second flow higher than first flow, controller 7 controls electricity and adds The heating power of thermal is reduced to second power lower than the first power to be heated；When the flow of measurement is higher than than second When measuring high third flow, the heating power that controller 7 controls electric heater unit is reduced to the third power lower than the second power It is heated；When the flow of measurement is higher than four flow higher than third flow, controller 7 controls the heating of electric heater unit Power is reduced to fourth power higher than third power to be heated；When the flow of measurement is higher than fiveth stream higher than the 4th flow When amount, controller 7 stops the heating of electric heater unit.

Further preferably, the 5th flow is 1.1-1.2 times of the 4th flow, and the 4th flow is the 1.2-1.3 of third flow Times, third flow is 1.3-1.4 times of second flow, and second flow is 1.4-1.5 times of first flow.

By the preferred of the power of above-mentioned flow and electric heater unit, filled especially by differential flow and electric heating The setting for the power set can quickly realize the constant of flow, save the time.

By so set, electric heating amount, guarantee steam can be adjusted according to the quantity of steam that steam generator generates Output quantity it is constant, avoid quantity too large or too small, cause quantity of steam insufficient or waste, while waste heat can be saved The energy.

The present invention can also be realized according to valve intelligent control steam generator.

1. embodiment one

It is improved as one, temperature sensor is set in the drum 3, for measuring the temperature of the steam in drum 3. Inlet valve and steam valve, the temperature sensor, inlet valve is respectively set on the water inlet pipe 4 and steam (vapor) outlet 5 of drum 3 With steam valve and 7 data connection of central controller.Central controller 7 controls water inlet according to the temperature of temperature sensor measurement The opening and closing of valve and steam valve and the size of aperture.

If the temperature of the steam in temperature sensor measurement drum 3 is lower than the numerical value of lower limit, central controller 7 is controlled Inlet valve and steam valve are automatically closed, to guarantee that the steam in drum 3 continues heat temperature raising；If the drum 3 of measurement The temperature of interior steam is more than the numerical value of the upper limit, then central controller 7 controls inlet valve and steam valve automatically opens.Pass through Above-mentioned measure, can and guarantee drum 3 export steam temperature keep certain temperature, so as to reach utilizable temperature Degree.

Preferably, the multiple temperature sensors of setting in the drum 3, measure steam by multiple temperature sensors Temperature.

Preferably, central controller 7 is controlled by the average value of the temperature of the steam of multiple temperature sensor measurements The opening and closing of inlet valve and steam valve.

Preferably, central controller 7 is controlled by the peak of the temperature of the steam of multiple temperature sensor measurements The opening and closing of inlet valve and steam valve.By taking peak, the excessively high generation danger of temperature of the steam in drum 3 can be avoided Danger.

Preferably, the position in drum 3 close to steam (vapor) outlet is arranged at least one described temperature sensor.

2. embodiment two

It is improved as one, the size that the central controller 7 passes through the aperture of control inlet valve and steam valve Leaving water temperature to guarantee in drum reaches steady state value.Drum 3 is entered with the flow of drum 3 said is left by adjusting to adjust The temperature of the steam of the steam (vapor) outlet of whole drum 3.

Outlet pipe temp sensor is set on the drum steam (vapor) outlet 5, and the outlet temperature sensor and center control 7 data connection of device, central controller 7 control the opening and closing of inlet valve and steam valve according to the temperature of temperature sensor measurement And the size of aperture.

If the temperature of the steam of the outlet of temperature sensor measurement is lower than the numerical value of lower limit, central controller 7 is controlled The aperture of steam valve processed increases, and reduces the aperture of water inlet valve, so that reduced into the water in drum 3, so that from The steam opened in drum 3 increases, so that the discharge reduction in drum 3.Steam in drum 3 is improved by the reduction of water Temperature, to improve the outlet temperature of drum 3.On the contrary, the temperature of the water of the outlet of temperature sensor measurement is higher than the upper limit Numerical value, then 7 control valve 20 of central controller aperture reduce, increase the aperture of water inlet valve, so that into vapour Water in packet 3 increases, so that the steam left in drum 3 is reduced, so that the water in drum 3 increases.Pass through water Increase to reduce the temperature of water in drum 3, to reduce the outlet temperature of drum 3.By above-mentioned measure, can and guarantee drum The temperature of the steam of 3 outputs is kept in a certain range, so as to reach utilizable temperature.

Preferably, multiple temperature sensors are arranged in the steam (vapor) outlet 5, vapour is measured by multiple temperature sensors The temperature of the water of packet outlet pipe.

Preferably, the average value of the temperature for the water that central controller 7 is measured by multiple temperature sensors 19 controls Steam valve, water inlet valve aperture size.

Preferably, the peak of the temperature for the water that central controller 7 is measured by multiple temperature sensors 19 controls The aperture of steam valve, water inlet valve.By taking peak, it can guarantee the safety of drum.

Preferably, steam (vapor) outlet 5 is arranged in close to the position of drum 3 at least one described temperature sensor.

Preferably, it is 5-10 degrees Celsius, preferably 6-8 degrees Celsius that limit value, which subtracts lower numerical limit,.

3. embodiment three

As the further improvement of embodiment two, steam valve, water inlet pipe are controlled by the temperature of water in measurement drum 3 The opening and closing of valve.

If the temperature of the water for the drum 3 that temperature sensor 19 measures is lower than the numerical value of lower limit, central controller 7 is controlled The aperture of steam valve increases, and reduces the aperture of water inlet valve, so that reducing into the water in drum 3, so that leaving Steam in drum 3 increases, so that the discharge reduction in drum 3.The temperature of water in drum 3 is improved by the reduction of water Degree, to improve the outlet temperature of drum 3.On the contrary, the temperature of the water in the drum 3 of temperature sensor measurement is higher than the number of the upper limit Value, the then aperture that central controller 7 controls steam valve are reduced, and increase the aperture of water inlet valve, so that into drum 3 Interior water increases, so that the steam left in drum 3 is reduced, so that the water in drum 3 increases.Pass through the increase of water The temperature of water in drum 3 is reduced, to reduce the outlet temperature of drum 3.By above-mentioned measure, can and guarantee in drum 3 Water temperature keep in a certain range, to guarantee that steam can reach utilizable temperature.

Preferably, the multiple temperature sensors of setting in the drum 3, measure water by multiple temperature sensors Temperature.

Preferably, central controller 7 controls steaming by the average value of the temperature of the water of multiple temperature sensor measurements The aperture of steam valve door, water inlet valve.

Preferably, central controller 7 controls steaming by the minimum of the temperature of the water of multiple temperature sensor measurements The aperture of steam valve door, water inlet valve.By taking minimum, it can guarantee the temperature of the water of all positions in drum 3 all Utilizable temperature can be reached.

Preferably, it is 8-13 degrees Celsius, preferably 9-11 degrees Celsius that limit value, which subtracts lower numerical limit,.

Preferably, the bottom of drum is arranged in the temperature sensor.

4. example IV

It is improved as one, water-level gauge, 7 data connection of the water-level gauge and central controller is set in the drum 3. The height of central controller level monitoring is to control the size of the aperture of steam valve, water inlet valve.

By the height of level monitoring, avoid the water level in drum too low, thus cause 3 release end of heat of heat pipe that can not radiate, It causes heat pipe to damage, while avoiding the water level in drum 3 excessively high, to cause pressure in drum excessive, especially boiled in heating In the case where rising.

If the water level of the drum 3 of water-level gauge measurement is higher than the numerical value of the upper limit, central controller 7 controls steam valve Aperture increases, and reduces the aperture of water inlet valve, so that reducing into the water in drum 3, so that leaving the steaming in drum 3 Vapour increases, so that the discharge reduction in drum 3.The water level of water in drum 3 is reduced by the reduction of water.On the contrary, water Water level in the drum 3 of position meter measurement is lower than the numerical value of lower limit, then the aperture that central controller 7 controls steam valve is reduced, and increases The aperture of aqueduct valve is added, so that increase into the water in drum 3, so that the steam left in drum 3 is reduced, thus So that the water in drum 3 increases.

Preferably, the limit value of water level be drum volume 40%-45% where height, preferably 43%.

Preferably, the lower numerical limit of water level is that 1 release end of heat 10 of thermal-collecting tube protrudes into the height in drum.To guarantee drum In water cover release end of heat comprehensively.

5. embodiment five

Embodiment is fifth is that the improvement combined to embodiment one, example IV.

If the temperature of the water in temperature sensor measurement drum 3 is lower than the numerical value of lower limit, at this time 7 basis of central controller The water level of the water-level gauge measurement of monitoring automatically controls the opening and closing of steam valve, water inlet valve, and concrete measure is as follows:

The water level for the water-level gauge measurement that central controller 7 monitors is higher than lower limit value and is lower than upper limit value, then center control Device 7 is controlled to be automatically closed into steam valve, water inlet valve, to guarantee that the water in drum 3 continues heat temperature raising；

The water level for the water-level gauge measurement that central controller 7 monitors is lower than lower limit value, then central controller 7 controls steam valve It is automatically closed, water inlet valve continues to open, to guarantee that water continues to flow into drum 3, when the water level that central controller 7 monitors The water level of meter measurement is at or above lower limit value, then central controller 7 controls water inlet valve and is automatically closed；

The water level for the water-level gauge measurement that central controller 7 monitors is higher than upper limit value, then central controller 7 controls steam valve Continue to open, water inlet valve is automatically closed, to guarantee that water continues to flow out drum 3, when the water-level gauge that central controller 7 monitors The water level of measurement is equal to or less than upper limit value, then central controller 7 controls steam valve and is automatically closed.

As soon as remaining feature is identical as embodiment, embodiment five, no longer describe one by one.

6. embodiment six

Embodiment is sixth is that the improvement combined to embodiment two, example IV.

If the temperature of the water of the outlet of temperature sensor measurement is lower than the numerical value of lower limit, central controller 7 is according to prison The water level of the water-level gauge measurement of control automatically controls the aperture of steam valve, water inlet valve, and concrete measure is as follows:

The water level for the water-level gauge measurement that central controller 7 monitors is lower than upper limit value, then central controller 7 controls steam valve Aperture increase, reduce the aperture of water inlet valve so that into drum 3 water reduce so that leaving in drum 3 Water increases, so that the discharge reduction in drum 3, if the water level in drum 3 is reduced to lower limit value or close to lower limit value, Then central controller controls steam valve, water inlet valve are closed；

The water level for the water-level gauge measurement that central controller 7 monitors is lower than lower limit value, then central controller 7 controls steam valve It closes, is simultaneously emitted by alarm；Show the water temperature that cannot achieve needs at present at this time, reason may be intensity of illumination not enough or its His reason, to remind operator to pay attention to.

If the temperature of the water of the outlet of temperature sensor measurement is higher than the numerical value of the upper limit, central controller 7 is according to prison The water level of the water-level gauge measurement of control automatically controls the aperture of steam valve, water inlet valve, and concrete measure is as follows:

The water level for the water-level gauge measurement that central controller 7 monitors is lower than upper limit value, then central controller 7 controls steam valve Aperture reduce, increase the aperture of water inlet valve so that into drum 3 water increase so that leaving in drum 3 Water is reduced, so that the water in drum 3 increases；If the water level in drum 3 increases to upper limit value or close to upper limit value, Then central controller controls steam valve, water inlet valve are closed；

The water level for the water-level gauge measurement that central controller 7 monitors is higher than upper limit value, then the control of central controller 7 water inlet pipe valve Door is closed, and alarm is simultaneously emitted by；Show the water temperature that cannot achieve needs at present at this time, reason may be setting water temperature it is too low or Other reasons, to remind operator to pay attention to.

Although the present invention has been disclosed in the preferred embodiments as above, present invention is not limited to this.Any art technology Personnel can make various changes or modifications, therefore protection scope of the present invention is answered without departing from the spirit and scope of the present invention When being defined by the scope defined by the claims..

Claims

1. a kind of solar steam generator, including reflecting mirror and drum, the drum is located at the focal position of reflecting mirror, described Solar energy reflection is used to heat the water in drum to drum by reflecting mirror, and heat pipe is arranged in inside steam drum, and the heat pipe includes header And radiating end, which is characterized in that the radiating end is more, and the bottom of the header is connected on the inner wall of drum, described to dissipate Hot end is square structure；The radiating end surrounds header top wall surface central point annular Multi-layers distributing.

2. steam generator as described in claim 1, which is characterized in that the bottom of the header is the inner wall of drum.

3. steam generator as described in claim 1, which is characterized in that the bottom of drum is arranged in the header, described to dissipate Hot end is connected to header, and since the radiating end upwardly extend collecting upper box part, and separator is arranged in the radiating end, described Separator is laminated structure, and the laminated structure is arranged on the cross section of thermal-collecting tube；The separator is square logical Hole and octagon through-hole composition, the side length of the square through-hole are equal to the side length of octagon through-hole, and the square is logical Four of hole while be respectively four different octagon through-holes while, four of octagon through-hole apart from one another by side distinguish It is the side of four different square through-holes.

4. a kind of solar steam generator, including reflecting mirror and drum, the drum is located at the focal position of reflecting mirror, described Solar energy reflection is used to heat the water in drum by reflecting mirror to drum, which is characterized in that heat pipe, the heat is arranged in inside steam drum Pipe includes header and radiating end, and the bottom of drum is arranged in the header, and the radiating end is connected to header, the radiating end from Collection upper box part starts to upwardly extend, and the radiating end is more, and the bottom of the header is connected on the inner wall of drum.