CN106382665A - Circulation heating device and flowing path control method for heat collecting liquid - Google Patents

Abstract

The invention relates to a circulation heating device and a flowing path control method for heat collecting liquid. The device comprises a heating loop and a solar heat collector, wherein the heating loop comprises a heat storing water tank, a heating tail end and a circulating water pump; the solar heat collector comprises a shell and a heat collecting part arranged in the shell; the heat collecting part comprises an inlet liquid dividing pipe, an outlet liquid collecting pipe and a plurality of heat collecting units arranged between the inlet liquid dividing pipe and the outlet liquid collecting pipe in parallel; each heat collecting unit comprises a compound parabolic concentrator and a capillary pipe heat absorber arranged on the compound parabolic concentrator in a spanning manner; and the heat collecting liquid forms a flowing path among the inlet liquid dividing pipe, the outlet liquid collecting pipe and at least part of the capillary pipe heat absorbers, and a heat exchanger in a heat accumulator enables the flowing path to form a closed loop. The number of the capillary pipe heat absorbers connected to the flowing path is adjustable. The heating device can meet heating requirements by adjusting the flowing path of the heat collecting liquid.

Description

Circulation heating apparatus and the flow control method of thermal-arrest liquid

Technical field

The present invention relates to radiant heat energy field can utilize and in particular to a kind of circulation heating apparatus and thermal-arrest liquid very much Flow control method.

Background technology

Thermal-arrest liquid in solar thermal collector leans on free convection or pump flowing at present.Heat-collecting temperature and flow are passively adjusted Section is it is impossible to dynamic according to actual needs pass through to adjust running status (heat-collecting temperature and flow) and adapt to weather and use demand Change；And solar thermal collector generally to absorb solar energy using the heat-absorbent surface of slab construction, and the temperature of heat-absorbent surface is universal Higher than endothermic tube temperature, define a hyperthermia radiation face and leak hot face, affect collecting efficiency.

At present for the improvement of solar thermal collector, the heat-collecting temperature being primarily directed to heat collector is carried out.As in vacuum tube Heat collector is inserted into metal tube changing fluid flow, or carries out segment set thermal flow process in the thermal-collecting tube of flat plate collector Arranged in series etc..But the optimization to solar thermal collector is extremely limited, how fundamentally to change the heat-collecting capacity of heat collector with And the utilization rate of raising heat collector, so that heat collector is run according to use demand adjust automatically thermal-arrest liquid flow high efficiency, be still Treat the problem optimizing further.

The application being heated using solar thermal collector thermal-arrest is widely.But the collection in current solar thermal collector Hot liquid leans on free convection or pump flowing, and heat-collecting temperature is affected greatly by solar radiation, heat-collecting temperature and heat-collecting capacity fluctuate greatly it is impossible to Dynamic regulation is carried out to the collection heat level of heat collector according to the actual demand of heating.

Content of the invention

Technical problem

The technical problem to be solved in the present invention is, how to adjust the thermal-arrest temperature of thermal-arrest liquid according to the heating demands of user Degree and heat-collecting capacity.

Solution

In view of this, An embodiment provides a kind of circulation heating apparatus, this circulation heating apparatus includes： Heating circulation, it includes hot water storage tank, heating end and water circulating pump；；And solar thermal collector, it include housing and It is placed in the thermal-arrest portion in described housing；Wherein, described thermal-arrest portion includes feed liquor separating tube, goes out liquid collector tube and be placed in the two it Between, heat collection unit that several are arranged side by side；Wherein, each described heat collection unit includes compound parabolic concentrator and puts across column Capillary tube heat sucker on described compound parabolic concentrator, the thermal-arrest liquid in described capillary tube heat sucker absorbs by described multiple What conjunction parabolic concentrator reflected too can radiation energy；Described thermal-arrest liquid described feed liquor separating tube, described go out liquid collector tube and extremely Form flow path, described heating end makes described flow path form closed loop between few a part of described capillary tube heat sucker； And the described capillary heat absorption of described flow path on the premise of there is physical significance, can be accessed by adjustable mode The number of device.

For above-mentioned circulation heating apparatus, in a kind of possible implementation, described feed liquor separating tube and described go out liquid Several electrically operated valves are distributed with collector tube, by adjusting the on off state of each described electrically operated valve, are in open state Electrically operated valve make thermal-arrest liquid described feed liquor separating tube, described go out between liquid collector tube and described capillary tube heat sucker formed The flow path of adjustable, multistage capillary tube heat sucker heat absorption；Wherein, swim over to the direction in downstream as hair with feed liquor separating tube The direction that the heat absorption series of tubule heat dump is incremented by, then endotherm area >=the place of the capillary tube heat sucker of the higher high-temperature level of series Endotherm area in the capillary tube heat sucker of the relatively low low-temperature level of series.

For above-mentioned circulation heating apparatus, in a kind of possible implementation, also include control unit, it is electronic with each Valve is electrical connection, for adjusting the on off state of each described electrically operated valve；Adjust each institute for through described control unit For stating the flow path of on off state formation of electrically operated valve, on the incremental direction of the heat absorption series of capillary tube heat sucker, When total heat absorption series of capillary tube heat sucker is odd number, the electrically operated valve of the most downstream on described feed liquor separating tube should Close, located at described go out liquid collector tube on the electrically operated valve of most downstream should open；Heat absorption series when capillary tube heat sucker During for even number, otherwise.

For above-mentioned circulation heating apparatus, in a kind of possible implementation, described feed liquor separating tube is additionally provided with tune Throttling control valve, adjusts thermal-arrest liquid in described flow path by adjusting the described aperture adjusting flow control valve Flow.

For above-mentioned circulation heating apparatus, in a kind of possible implementation, described solar thermal collector also includes passing Sensor group, it includes：First sensor group, its located at the upstream of described feed liquor separating tube, for detecting thermal-arrest liquid in import The characteristic parameter at place；Second sensor group, its located at described go out liquid collector tube downstream, for detecting thermal-arrest liquid in exit Characteristic parameter；3rd sensor group, in its environment residing for located at described solar thermal collector, for detecting ambient parameter； And heating temperature sensor, it supplies the temperature of warm fluid on described supply channel for detection；Above-mentioned (first, 2nd, the 3rd) sensor group and heating temperature sensor are electrically connected with described control unit respectively, for providing to described control unit For adjusting the basic parameter of the on off state of each described electrically operated valve.

Preferably, with the axial direction of described capillary heat dump as length direction, described compound parabolic concentrator with described Capillary heat dump is adapted in the size of this length direction, and the scope of the intercepting ratio of described compound parabolic concentrator is 0～4/ 5.Preferably, described capillary tube heat sucker is placed on the focal circle of described compound parabolic concentrator along its length, and described hair Caliber≤the 4mm of tubule heat dump.

For above-mentioned circulation heating apparatus, in a kind of possible implementation, by described two-way and above described hair Tubule heat dump is in parallel to form capillary group, and liquid is divided by two grades of knockouts and described feed liquor respectively in the both sides of described capillary group Pipe with described go out liquid collector tube connect.

The present invention additionally provides a kind of flow control method of thermal-arrest liquid, and this flow control method includes：Control unit The parameter of collection solar thermal collector and service data, also gather the supply water temperature of heating circulation；Control unit is based on described ginseng Several, described service data and described leaving air temp, the mesh to corresponding solar thermal collector under selected current heating mode Scalar functions are optimized；It is the corresponding feed liquor separating tube located at solar thermal collector during optimal value that control unit obtains object function Target switch state with each electrically operated valve going out on liquid collector tube；Wherein, described optimal value is under given temperature and flow Minimum pump work；The on off state of electrically operated valve is adjusted to control unit target switch state so that the thermal-arrest of solar thermal collector Liquid in feed liquor separating tube, go out and form adjustable flow path between liquid collector tube, capillary tube heat sucker and hot water storage tank.

For above-mentioned flow control method, in a kind of possible implementation, this flow control method also includes：Control Portion shows described leaving air temp and the information drawing according to described parameter and service data, including：The turnover of thermal-arrest liquid Liquid temp, flow and pressure reduction；Current ambient parameter；And the current on off state of each described electrically operated valve；Storage supplies The parameter of warm circulation and service data, for subsequently recalling.

Beneficial effect

The heating installation of the present invention improves stability and the efficiency of heating, specifically, by using capillary tube heat sucker Improve collecting efficiency with the heat collection unit of compound parabolic concentrator composition, and by change the flow path of thermal-arrest liquid Lai Adjustment collecting efficiency, and then improve the heat-collecting temperature and heat-collecting capacity of the solar thermal collector different heating demands to heating installation Adaptability.

Brief description

When considered in conjunction with the accompanying drawings, the present invention can more completely be more fully understood.Accompanying drawing described herein is used for providing A further understanding of the present invention, embodiment and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.

Fig. 1 illustrates the structural representation (having hot water storage tank) of the circulation heating apparatus of one embodiment of the invention；Fig. 2 illustrates The solar thermal collector cross-sectional schematic of the circulation heating apparatus of one embodiment of the invention.

Fig. 3 illustrates the box of the control unit of the solar thermal collector of the circulation heating apparatus of one embodiment of the present of invention Figure；Fig. 4-1 illustrates a kind of enforcement of the control unit of the solar thermal collector of the circulation heating apparatus of one embodiment of the present of invention The logic diagram (control device+remote control cooperation completes) of example；Fig. 4-2 illustrates the circulation of one embodiment of the present of invention The logic diagram (control device individually completes) of another kind of embodiment of the control unit of the heat collector of heating installation；Fig. 5 illustrates this A kind of logic diagram of the optimal way of the control unit of the solar thermal collector of the circulation heating apparatus of one embodiment of invention.

Reference numerals list

1st, feed liquor separating tube 2, capillary tube heat sucker 3, go out liquid collector tube 4, compound parabolic concentrator 5, electrically operated valve 61st, the first temperature sensor 62, second temperature sensor 63, three-temperature sensor 64, heating temperature sensor 7, stream Quantity sensor 81, the first differential pressure pickup measuring point 82, the second differential pressure pickup measuring point 9, flow control valve 10, wind speed sensing Device 11, solar radiation sensor 12, circulating pump 13, hot water storage tank 14, heat exchanger 15, heating end 16, heating circulation Pump 17, holding wire 18, base plate 19, heat-insulation layer 20, framework 21, cover-plate glass.

Specific embodiment

Below in conjunction with the accompanying drawings and embodiment is described in further detail to technical scheme.

The circulation heating apparatus of the present invention belong to a kind of application of solar thermal collector.Specifically, by by solar energy collection Hot device (hereinafter referred to heat collector), as heating source, carries out to the heat storage liquid being attached thereto in logical hot water storage tank 13 adding Heat, more specifically, thermal-arrest liquid in heat collector absorb too can be as heating source after radiation energy.But heat collecting liquid herein The body not liquid in physical significance, such as can be construed to, have mobile performance and can with the medium of heat-carrying, heat transfer, Can be liquid medium, such as calcium chloride concentrated solution, potassium chloride concentrated solution etc..Can also be gaseous medium etc. other there is equivalent work( The medium of energy, such as air, nitrogen, carbon dioxide, argon gas etc..In the case of the air that thermal-arrest liquid is in gaseous medium, collection Hot device directly heats air, need not arrange hot water storage tank 13 and setting heat exchanger in the inner, directly deliver air to Heat to user in heating end 15.The feelings being liquid medium or other gaseous mediums in addition to air in thermal-arrest liquid Under shape, can be provided with hot water storage tank 13 so that heat collecting liquid body forms the device (as heat exchanger) of closed loop, for warm fluid Deliver heat to end 15 of heating after the heat absorbing thermal-arrest liquid, distribute heat to residing for user from heating end 15 Environment in.The present invention by being optimized the heating so that heat collector and circulation heating apparatus to the solar collecting performance of heat collector Demand is more mated.

Below only taking need the situation of hot water storage tank 13 as a example, to illustrate to realize the detailed process of the present invention.

Embodiment 1

Fig. 1 illustrates the structural representation of the circulation heating apparatus of one embodiment of the invention, is mainly adjusted by i.e. hydrothermal solution The path of body makes the collection heat level of heat collector meet heating requirement.

As shown in figure 1, in the case of thermal-arrest liquid is except can directly supply other media of medium of user's heating, This circulation heating apparatus mainly includes：Inside is provided with the hot water storage tank 13 of heat exchanger 14, and provides setting for heat exchanger Heating temperature heat collector.This heat collector mainly includes housing and is placed in the thermal-arrest portion in housing；Housing is mainly used as collecting The carrier in hot portion, and ensure that sunlight can expose to thermal-arrest portion through the cover-plate glass 21 of housing.Further as shown in Fig. 2 The structure of housing mainly includes base plate 18, framework 20, heat-insulation layer 19 and cover-plate glass 21；Wherein：The upper surface of framework 20 is covered Cover the cover-plate glass 21 of high printing opacity, the inner side of the framework 20 in addition to upper surface is equipped with heat-insulation layer 19；Base plate 18 is located at framework 20 The top of the heat-insulation layer 19 of bottom.Thermal-arrest portion include feed liquor separating tube 1, go out liquid collector tube 3 and be placed in therebetween, some Individual heat collection unit arranged side by side；Each heat collection unit includes compound parabolic concentrator 4 (CPC) and is placed in the hair on CPC4 across column Tubule heat dump 2, thermal-arrest liquid in capillary tube heat sucker 2 absorb by CPC4 reflect too can be after radiation energy, by absorb Heat energy is used for the circulation heating of the present invention.As one kind preferably, heat collection unit arranged side by side is uniform, parallel arrangement mode.

In the present invention, thermal-arrest liquid in feed liquor separating tube 1, go out liquid collector tube 3 and at least a portion capillary tube heat sucker 2 Between formed flow path, and the heat exchanger 14 being placed in hot water storage tank 13 make this flow path formed closed loop, i.e. heat exchanger 14 Interior thermal-arrest liquid completes to pump into feed liquor through circulating pump 12 after it is the function of transmitting heat for the confession warm fluid heating The upstream of separating tube 1, after completing the selection of flow path under the control of control unit, the downstream through going out liquid collector tube 3 is again Inflow heat exchanger 14, being heated to the confession warm fluid in hot water storage tank 13 so that being supplied warm fluid heat absorption to heat up, so being completed The thermal cycle of one collection.And on the premise of there is physical significance, described flow path can be accessed by adjustable mode The number of described capillary tube heat sucker 2, makes path variable by certain adjustment mode, such as can adjust the most manually The change optimizing and revising realizing route that whole or control unit comes.Confession warm fluid in hot water storage tank 13 is through heating circulation pump 16 It is pumped into and is placed in the indoor heating end 15 of user, for user's heating, the confession warm fluid of heat release cooling returns to hot water storage tank 13, so complete a heating circulation.

Additionally, by CPC4 being fixed on base plate 18 it is achieved that the fixation of corresponding heat collection unit.Capillary tube heat sucker 2 Two ends respectively with feed liquor separating tube 1 and go out liquid collector tube 3 and be connected, the thermal-arrest liquid in heat exchanger 14 passes through heat collector upstream Heat collector entrance through feed liquor separating tube 1 enter capillary tube heat sucker 2, capillary tube heat sucker 2 in absorb CPC4 reflect heat After amount, it flow to out liquid collector tube 3, and inflow heat exchanger 14 is exported by the heat collector in heat collector downstream.

As a kind of preferred, in order to ensure the stability in heat-absorbing structure and thermal conversion efficiency, by capillary tube heat sucker 2 On the position of the focal circle being placed in CPC4, being placed in of being placed in herein, absolutely not stricti jurise, but the position by being generally residing in Relation reaches the effect of collecting efficiency raising, such as can be construed to the position with respect to focal circle, and deviation is less than certain Numerical value gets final product (as 0.5mm).Have the advantages that collection heat is the most intensive because this position is in the range of structures of whole CPC4, It is thus advantageous to improve the collecting efficiency of the thermal-arrest liquid in capillary tube heat sucker 2.

In a kind of possible embodiment, make path variable by certain adjustment mode, can be, on pipeline such as Several electrically operated valve 5 is distributed with, by adjusting the on off state of each electrically operated valve 5 so that thermal-arrest as heat-absorbing medium After the upstream end through entering liquid separating tube 1 for the liquid enters heat collector, it is in the electrically operated valve of open state so that thermal-arrest liquid is entering Liquid separating tube 1, go out formed between liquid collector tube 3 and capillary tube heat sucker 2 adjustable, the heat absorption of multistage capillary tube heat sucker 2 Target flow path.Wherein, the direction swimming over to downstream with feed liquor separating tube 1 is incremental for the heat absorption series of capillary tube heat sucker 2 Direction, then in order to ensure thermal-arrest have reality meaning, the endotherm area of the capillary tube heat sucker 2 of the higher high-temperature level of series >=be in the relatively low low-temperature level of series capillary tube heat sucker 2 endotherm area.Thermal-arrest liquid is along this target flow path During, only enter the capillary tube heat sucker 2 that this target flow path comprised and absorb the solar radiation reflected by CPC4 After heat energy, finally corresponding collection device and/or application scenario are flowed out to by the downstream going out liquid collector tube 3.In the present invention, By flowing through the thermal-arrest liquid of heat exchanger 14 and the heating fluid heat transfer of hot water storage tank 13, to realize to being in heating end 15 institute Environment in user heating.

By adjusting the switch shape being arranged at feed liquor separating tube 1 and going out several electrically operated valves 5 between liquid collector tube 3 State so that same heat collector can have different target flow paths according to actual conditions, that is, different collection calorific intensity.? In a kind of possible embodiment, the on off state of each electrically operated valve 5 can adjust it is also possible to will be therein relatively independently More than one carries out linkage adjustment as an entirety.With further reference to Fig. 1, in a kind of possible embodiment, motor-driven valve Door 5 installation principle can be：From the beginning of the upstream that thermal-arrest liquid enters feed liquor separating tube, pass through every time in feed liquor separating tube 1 Capillary tube heat sucker 2 carries out after point liquid to thermal-arrest liquid, installs and be incorporated to motor-driven valve on the supervisor in the downstream of feed liquor separating tube 1 Door 5, from being incorporated to the second road electrically operated valve 5, under the relevant position going out liquid collector tube 3 that capillary tube heat sucker 2 is connected Also install on the supervisor of trip side and be incorporated to electrically operated valve 5.

Certainly, aforesaid heat collector is mainly made up of the CPC4 of multigroup little yardstick and corresponding capillary tube heat sucker 2 Heat collection unit forms side by side.In a kind of possible embodiment, can be the length of capillary endothermic tube 2 be comparatively short and pipe number When comparing many, can be in parallel by capillary tube heat sucker 2 more than two-way or two-way, form single capillary before function be equivalent to The capillary group of tube heat sucker 2, that is, using this capillary group as most basic unit, in feed liquor separating tube 1 with go out liquid collector tube 3 Between be provided with several such capillary groups, but, each capillary tube heat sucker 2 in each capillary group needs by two Level knockout realizes itself and feed liquor separating tube 1 and the connection going out liquid collector tube 3.

As can be seen that except using single capillary tube heat sucker 2 as in addition to one individually most basic unit it is also possible to Form the most basic unit that function phase is worked as by parallel for Multi-path capillary heat dump 2.To improve the collection thermal effect of heat collector further Rate.

Additionally, for the structural integrity ensureing thermal-arrest portion, CPC4 should in the size of length direction with capillary tube heat sucker 2 When being adapted, being adapted it should be construed to roughly the same herein, herein roughly the same, such as can be construed to：Capillary is inhaled The length of hot device 2 can be slightly longer, and length difference is less than certain critical numerical value (being less than 2cm as unilateral).A kind of possible In embodiment, it is 0～4/5 in the intercepting of CPC4 than scope, and the external diameter of capillary tube heat sucker 2 no more than 4mm (preferably 1～ 4mm, more preferably 2～4mm) in the case of, CPC4 can have and conventional flat plate collector or vacuum tube collector phase When size (as height≤50mm), in the case of CPC4 is suitable with the size of the heat collector of routine, its can produce than In conventional heat collector at least 2～5 times of focusing ratio reaching as high as 10 times effect hence it is evident that improve collecting efficiency.Additionally, CPC4 can be with using the mode machine-shaping such as 3D printing.

As can be seen that present invention CPC4 instead of traditional absorber plate, instead of traditional heat pipe with capillary endothermic tube 2 Or conventional endothermic tube, the introducing of CPC4 increased the endothermic heat flow density of capillary tube heat sucker 2, decreases area of dissipation；Due to Capillary tube heat sucker 2 can be preferably disposed at the position of substantially focal circle of CPC4 by capillary endothermic tube 2, therefore fully sharp With the condenser performance of CPC4 so that the temperature of thermal-arrest liquid in capillary endothermic tube 2 within heat collector can reach theory On maximum temperaturerise, on the premise of high temp objects area and leaking heat are reduced, improve the collecting efficiency of heat collector.

In a kind of possible embodiment, the switch to each electrically operated valve 5 can be realized by introducing control unit The adjustment of state.With further reference to Fig. 1, if the feedback result that control unit draws is so that in seven electrically operated valves 5 in Fig. 1 (1,3,5,7) (according to being incorporated to order, five electrically operated valves 5 refer to successively 1 bottom right, right in 2 time, 3 times middle left sides, 4 bottom lefts, 5 Upper right, on 6 in, left on 7, wherein electrically operated valve (1,3,5,7) refers to bottom right, the electricity at lower middle left, upper right, upper left position Movable valve 5) be open mode, then form target flow path (flow process) as shown by the arrow.But, for through control unit For adjusting the flow path of on off state formation of each electrically operated valve 5, still it is to ensure that thermal-arrest has practical significance, On the direction that the heat absorption series of capillary tube heat sucker 2 is incremented by, when the heat absorption series of capillary tube heat sucker 2 is odd number, located at The electrically operated valve 5 of the most downstream on feed liquor separating tube 1 should be closed, and the motor-driven valve located at the most downstream going out on liquid collector tube 3 Door 5 should be opened；When the heat absorption series of capillary tube heat sucker 2 is even number, otherwise then.

As can be seen that the flow process of thermal-arrest liquid can be changed by changing the on off state of each electrically operated valve 5；By changing Become the flow process of thermal-arrest liquid, the downstream enabling to out liquid collector tube 3 has the different liquid temps that go out, such as：Complete in electrically operated valve 5 In the case of opening, the target flow path of the thermal-arrest liquid of formation is parallel-connection flow, and the situation opened in part electrically operated valve 5 Under, then this target flow path includes at least a part of serial flow, particularly in the feelings that the series being incorporated to electrically operated valve 5 is higher Under condition, the heat-collecting temperature of thermal-arrest liquid can be significantly hotter than simple parallel-connection flow；Due in above-mentioned parallel-connection flow and serial flow Under (including all connecting and comprise the sections in series of parallel branch), thermal-arrest liquid is formed when flowing through capillary tube heat sucker 2 Crushing different, therefore in the case of flow identical, can have the pump works of different pumping thermal-arrest liquid.

Additionally, as shown in figure 1, also including the sensor group of the service data for detecting heat collector, being mainly used in controlling The parameter acquisition in portion.Sensor group mainly includes：

I) first sensor group, its located at the upstream of feed liquor separating tube 1, for detecting thermal-arrest liquid in heat collector entrance Characteristic parameter, the first temperature sensor 61 such as located at the porch (i.e. the upstream of feed liquor separating tube 1) of thermal-arrest liquid, flow Sensor 7 and the first differential pressure pickup measuring point 81 etc.；

Ii) second sensor group, its located at the downstream going out liquid collector tube 3, for detecting that thermal-arrest liquid exports in heat collector The characteristic parameter at place, such as second temperature sensor 62 He located at the exit (going out the downstream of liquid collector tube 3) of thermal-arrest liquid Second differential pressure pickup measuring point 82 etc.；And

Iii) 3rd sensor group, in its environment residing for located at heat collector, for detecting ambient parameter, is such as placed in environment In three-temperature sensor 63, air velocity transducer 10 and solar radiation sensor 11 etc.；

Iv) heating temperature sensor 64, its on the supply channel of heating circulation, for detecting heating temperature.

Specifically：I), ii), iii) in temperature sensor (61,62,63) at three be respectively used to detect heat collector into and out of The temperature of thermal-arrest liquid at mouthful and the environment temperature at heat collector place；I) flow sensor 7 in is used for detecting heat collecting liquid The flow of body；I), ii) in differential pressure pickup measuring point (81,82) at two be used for detecting thermal-arrest liquid flow through after heat collector The pressure drop in exit；Iii the air velocity transducer 10 in) is used for test environment wind speed；Iii the solar radiation sensor 11 in) is used In test intensity of solar radiation.

Above-mentioned (first, second, third) sensor group and heating temperature sensor 64 are electrically connected with control unit respectively, use Basic parameter in the on off state providing to control unit for adjusting each electrically operated valve 5.I.e. above-mentioned all of test data Control unit is transferred to by holding wire 17, control unit can be placed in hot water storage tank 13 (as top) it is also possible to be placed in hot water storage tank Between 13 and heat collector naturally it is also possible to inside located at heat collector.Heat collector is provided to hot water storage tank 13 by heat exchanger 14 Heating source.Heat collector determines collection heat pattern according to the demand of heating temperature, heat collector corresponding collection to current heating mode The flow path of thermal-arrest liquid under heat pattern and flow are optimized.I.e. control unit passes through to control the switch shape of electrically operated valve 5 State, to adjust the flow process of thermal-arrest liquid, finally realizes the heating under the collection heat pattern corresponding to the demand of different heating temperatures Journey.

Additionally, control unit also passes through holding wire 17 with the flow control valve 9 of the upstream located at feed liquor separating tube 1 realizing being electrically connected Connect, by adjust flow control valve 9 aperture come domination set hot liquid the flow in flow process.

But, the topmost function of control unit is to control opening of electrically operated valve 5 for the operation conditions according to heat collector Off status；And then change the target flow path of thermal-arrest liquid.As a kind of specific embodiment, with further reference to Fig. 3, control Portion processed is used for completing the Row control to thermal-arrest liquid, and this flow control method mainly includes following functions：

31) receive capabilities, it is used for gathering and uploading the parameter of heat collector and can characterize heat collector running status Data (service data)；

32) processing function, its according to the above-mentioned data that receives, the setting having in conjunction with current collection heat pattern go out liquid Temperature (heating demands), is optimized to the object function under current collection heat pattern according to certain Optimized Approaches；

It is to be understood that the Optimized Approaches being mentioned above, can be applied to tear choosing and adjustment open using existing, ripe Optimized algorithm (as neural network algorithm, ant group algorithm, one by one than equity) it is also possible to again be compiled according to the actual requirements Journey, or suitable adjustment is carried out to existing algorithm, as long as can make currently to collect by adjusting the on off state of electrically operated valve 5 Object function under heat pattern is more excellent.

Additionally, with regard to current collection heat pattern, in a kind of possible embodiment, can be preset several in control unit Selected, classical target operational mode, each target operational mode can have specific object function, so that it is obtaining It is applied to occasion corresponding with target operational mode in the case of obtaining optimal value.Or it is also possible to according to actual conditions, controlling Newly-increased certain or certain several new target operational mode in portion, so that its object function is suitable in the case of obtaining optimal value For with the new corresponding occasion of target operational mode.Wherein, the species of optimal value is at least included with the highest temperature under given flow Rise, give out under liquid temp minimum pump work under maximum stream flow and given temperature and flow.

33) feedback function, it is used for calculating the object function currently integrating heat pattern as each electricity corresponding during optimal value The on off state that movable valve 5 should have, i.e. the target switch state of each electrically operated valve 5；

34) perform function, feedback module is shown that the on off state that each electrically operated valve 5 should have is each with collect by it The current on off state of individual electrically operated valve 5 is compared, and by sending corresponding execution order so that each electrically operated valve 5 On off state be adjusted to target switch state.

It is, of course, also possible to possess other miscellaneous functions such as display, storage, specifically：

35) display function, it is used for showing the real-time running state of heat collector by certain form, such as can be to fortune Row state is classified, and is then shown with forms such as " good, normal, overheated ", or according to actual conditions and demand, will Some parameters of running status are shown, or the running status that some parameters are characterized with animation streams (as thermal-arrest liquid Flow path etc.) form shown；

36) store function, it is used for recording and store parameter and the service data of heat collector；Primarily as standby number According to.As being easy to subsequently through the running status of heat collector is obtained with impact heat collector by way of recalling data The factor of energy, thus carry out improving the research of thermal performance of collectors.Or when heat collector breaks down, can be by recalling correlation Data is as the reference data of accident analysis.

With further reference to Fig. 4-1 and Fig. 4-2, in a kind of possible embodiment, control unit can include control device With two parts of remote control, by two parts cooperate to complete that control unit should possess upper State function " 31～36 "；As the division of labor of two parts can be：Control device mainly completes its main operational and control of correlation etc. Function, and remote control then mainly completes the functions such as display.Specifically：

As the core component of control unit, it is mainly integrated with following five functions to control device：

4101) data acquisition function, the service data of collection heat collector simultaneously transmits this data to remote control, its In：Service data can include but is not limited to：Heat-collecting temperature, flow, the flowing pressure loss of thermal-arrest liquid, environment temperature, wind Speed, one of intensity of solar radiation or multiple, be mainly used according to parameter calculate the fluid temperature rise of heat collector, leaking heat and Crushing etc. characterizes the parameter of performance characteristic, or some intermediate parameters, or at remote control end by some parameters The running status being reflected shows in real time；And the current switch states of each electrically operated valve 5, as to electrically operated valve 5 Normal condition when on off state is adjusted；

4102) pattern confirms function, accepts the pattern confirmation instruction that remote control is selected, and pattern confirms that instruction can To include：Select some in several existing heat collector operational modes as current collection heat pattern, or can be according to working as Front heat-collecting temperature and flow, are manually entered new heat collector operational mode at remote control end, as current collection hot-die Formula；

4103) calculation function, is optimized to the object function under current collection heat pattern, calculates object function and obtain The target switch state that in the case of figure of merit, each electrically operated valve 5 corresponding should have, and with reference to the benchmark shape in aforementioned 4101) State, sends corresponding control instruction to each electrically operated valve 5；

4104) storage and writing function, stores and records the relevant parameter of heat collector and service data (with real time execution The related data of state), parameter can include but is not limited to the size of each part of heat collector (as capillary tube heat sucker 2 and CPC4 Size), service data can include but is not limited to heat-collecting temperature, flow, thermal-arrest liquid flowing pressure loss, environment temperature, Wind speed and intensity of solar radiation etc.；And record the on off state (include current and adjustment after) of each electrically operated valve 5.Deposit Storage is primarily to facilitate with writing function and recalls data when needed, can be such as, the performance to heat collector carry out studying with During overall merit, or when the fault of heat collector is analyzed, as reference data.

In addition to the basic function that aforementioned four should possess as a rule, can also have following functions：

4105) display function, according to the actual requirements, can optionally show the part real-time running state of heat collector, Including but not limited to heat-collecting temperature, flow, thermal-arrest liquid flowing pressure loss, environment temperature, wind speed, intensity of solar radiation, electricity Movable valve on off state and thermal-arrest liquid flow.Display herein, is primarily to facilitate site examining and repairing and the manipulation of heat collector.

And remote control is then mainly integrated with following two functions：

4201) display function, optionally receiving control device collection or the parameter that calculates or data, permissible Including but not limited to receive heat-collecting temperature, flow, thermal-arrest liquid flowing pressure loss, environment temperature, wind speed and solar radiation strong Degree, is mainly used in being shown accordingly on the display interface that remote control end has, and understands current in order to user Heat collector running environment situation and heat collector operational factor, and the on off state of each electrically operated valve 5 can also be received, it is also Mainly it is easy to user and understand current heat collector running status.

4202) pattern confirms function, and sending mode confirms that instruction, to control device, selects heat collector for control device Current collection heat pattern, and the object function under current collection heat pattern is optimized, so that the flow process of thermal-arrest liquid is able to Optimize.

Calculating that the parameter of heat collector that control device collect and service data can participate in is mainly explained below, As being mainly used in the pressure loss of the temperature rise, leaking heat and thermal-arrest liquid that calculate heat collector.

The inlet temperature in heat collector porch for the thermal-arrest liquid can be set as T_in, the area of heat collector is A, and thermal-arrest liquid exists Outlet temperature T in heat collector exit_out, the series (being from upstream to the number of the heat collection unit that downstream comprises) of heat collector is n, Then the area of each grade of distribution is A_iIt is assumed that intensity of solar radiation is I, environment temperature is T_a, the flow of thermal-arrest liquid is m.

The then temperature rise of the first order is：

First, the temperature rise of the first order meets below equation

IA₁-Q_{l_1}=cm (T_{out_1}-T_{in_1})=cm Δ T₁(1)

In formula, Δ T₁Temperature rise for first order thermal-arrest liquid；C is the specific heat of thermal-arrest liquid；T_{in_1}First order thermal-arrest liquid Inlet temperature, T_{in_1}=T_in；T_{out_1}For the outlet temperature of first order thermal-arrest liquid, also for the entrance temperature of second level thermal-arrest liquid Degree：T_{in_2}=T_{out_1}；Q_{l_1}For the leaking heat of first order heat dump,

In formula, h is the convection transfer rate of heat collector outer surface and environment, and this convection transfer rate is only had with ambient wind velocity Close, h=f (v)；A_{h_1}Exterior surface area for first order capillary tube heat sucker 2；Then can get the temperature rise of the thermal-arrest liquid first order For：

${\mathrm{\ΔT}}_1=\frac{{\mathrm{IA}}_1-Q_{l\_1}}{cm}=\frac{{\mathrm{IA}}_1-{\mathrm{hA}}_{h\_1}(\frac{T_{out\_1}+T_{in\_1}}{2}-T_a)}{cm}---\left(2\right)$

If the mean temperature of first order thermal-arrest liquid isThen can get the first stage temperature rise is：

${\mathrm{\ΔT}}_1=\frac{{\mathrm{IA}}_1-{\mathrm{hA}}_{h\_1}(T_1-T_a)}{cm}---\left(3\right)$

Same computational methods, second level heat collecting liquid body temperature rises computing formula and is：

IA₂-Q_{l_2}=cm (T_{out_2}-T_{in_2})=cm Δ T₂(4)

$Q_{l\_2}={\mathrm{hA}}_{h\_2}(\frac{T_{out\_2}+T_{in\_2}}{2}-T_a)---\left(5\right)$

${\mathrm{\ΔT}}_2=\frac{{\mathrm{IA}}_2-{\mathrm{hA}}_{h\_2}(\frac{T_{out\_2}+T_{in\_2}}{2}-T_a)}{cm}=\frac{{\mathrm{IA}}_2-{\mathrm{hA}}_{h\_2}(T_2-T_a)}{cm}---\left(6\right)$

Then i-stage temperature rise is：

${\mathrm{\ΔT}}_i=\frac{{\mathrm{IA}}_i-{\mathrm{hA}}_{h\_i}(\frac{T_{out\_i}+T_{in\_i}}{2}-T_a)}{cm}=\frac{{\mathrm{IA}}_i-{\mathrm{hA}}_{h\_i}(T_i-T_a)}{cm}---\left(7\right)$

N-th grade of temperature rise is：

${\mathrm{\ΔT}}_n=\frac{{\mathrm{IA}}_n-{\mathrm{hA}}_{h\_n}(T_n-T_a)}{cm}---\left(8\right)$

If as can be seen that the collector area of every one-level capillary heat dump 2 is identical with endotherm area, with series Increase, endothermic temperature more and more higher, then leaking heat increases therewith；And after working as series increase to a certain extent, the heat absorption of heat collector Amount is equal with leaking heat, and now, the temperature of thermal-arrest liquid reaches highest heat-collecting temperature, will not increase further, follow-up thermal-arrest Flow process only can waste pump work.Therefore, heat collector to be improved go out liquid temp, then need according to every one-level heat collecting liquid body temperature liter Leaking heat afterwards improves the heat dump area of every one-level step by step.

Wherein it is determined that the computational methods of every one-level pipeline number and pressure drop are：

Because the closing of electrically operated valve 5 is to make due to the flow process of thermal-arrest liquid changes, therefore, the flow process of thermal-arrest liquid Decision process is mainly finds the electrically operated valve 5 being closed in flow process.The decision method of idiographic flow is：

First determine whether whether single flow process, that is, the capillary tube heat sucker 2 of whether all sockets is parallel connection.When satisfaction remove into Outside the electrically operated valve 5 of liquid separating tube most end one-level is closed, other all of electrically operated valves 5 are all open modes Under situation, thermal-arrest liquid is single parallel-connection flow.

It is not single parallel-connection flow in thermal-arrest liquid, in the case of that is, thermal-arrest liquid is multipaths, divide in feed liquor first Liquid pipe 1 finds the electrically operated valve 5 of first closing.I.e. j=1, i start to be gradually increased from 1, as a (x, 1)=0, then first-class The pipeline number of journey is x；Then find the electrically operated valve 5 of second closing on going out liquid collector tube 3, i.e. j=2, i continue to increase from x Plus, as a (y, 2)=0, then the pipeline number of second procedure is y-x；Then the next electrically operated valve 5 closed should divide in feed liquor In liquid pipe 1, then, the next electrically operated valve 5 closed is found on feed liquor separating tube 1, i.e. j=1, i continue to increase from y, work as a During (z, 2)=0, then the pipeline number of the 3rd flow process is z-y；The like just can obtain every one-level pipeline number until i=n-1. Two electrically operated valves 5 of last row are finally to flow out from going out liquid collector tube 3 for domination set hot liquid, last electrically operated valve 5 On off state be subject to flow process numerical control system：When flow process pipeline number is odd number, the electrically operated valve 5 on feed liquor separating tube 1 is to close, Going out the valve on liquid collector tube 3 is to open；When flow process number is even number, the electrically operated valve 5 on feed liquor separating tube 1 is to open , going out the electrically operated valve 5 on liquid collector tube 3 is to close.

Whole heat collector can be calculated after determining the number of capillary tube heat sucker 2 completing in flow process and each flow process The pressure drop of thermal-arrest liquid.It is equal to the pressure drop sum of every one-level.And the pressure drop of every one-level be equal to capillary tube heat sucker 2 along journey pressure Fall and partial drop of pressure sum.Wherein：

Single capillary heat dump 2 along journey pressure drop be：

$h_f=\mathrm{\λ}\·\frac{L}{D}\·\frac{V^2}{2g}---\left(9\right)$

In formula, λ is along journey pressure-drop coefficient, and the flowing due to thermal-arrest liquid is generally laminar flow, can useL For the length of tube that absorbs heat；V is the flow velocity of thermal-arrest liquid in endothermic tube；G is acceleration of gravity；Re is the Reynolds number of thermal-arrest liquid；ρ is Thermal-arrest fluid density；D is endothermic tube external diameter；μ is thermal-arrest liquid dynamic viscosity.

Partial drop of pressure is：

$h_{\mathrm{\ξ}}=\mathrm{\ξ}\·\frac{V^2}{2g}---\left(10\right)$

In formula, ξ is partial drop of pressure coefficient, arrives capillary suction because the partial drop of pressure of heat collector is mainly feed liquor separating tube 1 The pressure drop that hot device 2, capillary tube heat sucker 2 are mutated to the caliber going out liquid thermal-collecting tube 3 and flow direction causes, such as a kind of specific In embodiment, ξ can be taken as 1.

Further, from formula (8), the outlet temperature for the thermal-arrest liquid of multistage heat collector is strong with solar radiation Degree, heat collector area, heat dump area, the hot coefficient of heat transfer of leakage, environment temperature, thermal-arrest specific heat of liquid and flow have relation.Therefore It is believed that the specific heat of thermal-arrest liquid is constant in the case of given thermal-arrest class of liquids；In given intensity of solar radiation Under under situation, heat collector go out liquid temp and environment temperature, flow, the area going out liquid heat collector 3, the face of capillary tube heat sucker 2 The relating to parameters such as long-pending, the hot coefficient of heat transfer of leakage, that is,：

$T_{out\_i}=T_{in\_i}+{\mathrm{\ΔT}}_n=T_{in\_i}+\frac{I-{\mathrm{hA}}_{h\_n}(T_n-T_a)}{cm}=f(h,A_{h\_n},A_n,m,T_a)---\left(11\right)$

And it is relevant with wind speed, that is, to leak hot coefficient：

T_{out_i}=f (v, A_{h_n},A_n,m,T_a) (12)

And the energy utilization efficiency of heat collector, its except with the caloric receptivity of thermal-arrest liquid mutually outside the Pass, also with pumping thermal-arrest The pump work of liquid is relevant.Specifically：Heat collector net efficiency=(heat collecting liquid body temperature liter-pump work)/solar radiation energy.And pump work Then there is relation with the flow of thermal-arrest liquid and flow process.That is, wanting to obtain the net energy utilization ratio of higher heat collector, On the premise of the confession liquid temp meeting thermal-arrest liquid and flow, to reasonably plan the flow process of thermal-arrest liquid, and by the greatest extent Amount reduces the pressure drop of thermal-arrest liquid reducing pump work.

Therefore, under the conditions of different solar radiations, capillary can be adjusted by adjusting the on off state of electrically operated valve 5 The area of tube heat sucker 2 and the area by heat collector and flow come adjust heat collector go out liquid temp and net energy utilizes Efficiency.Mode of operation as heat collector can include following three kinds of target operational mode：

1) maximum temperaturerise under given flow, this pattern is applied to the situation that the heat-collecting temperature to heat collector requires.

2) give out the maximum stream flow under liquid temp, this pattern is applied to the situation that the heat-collecting capacity to heat collector requires.

3) given temperature, the minimum pump work under flow, this pattern be applied to requirement thermal-arresting energy-saving run, minimum from wasted work Situation.

With reference to Fig. 1, for more clearly expressing the path of thermal-arrest liquid, such as can be represented by matrix A={ a (i, j) } The on off state of each electrically operated valve 5.Wherein (i, j) represents the coordinate of electrically operated valve 5, and wherein, i represents along thermal-arrest liquid The columns of flow direction, j represents the line number along thermal-arrest liquid flow direction.As：Represent during j=1 that this electrically operated valve 5 is feed liquor Represent that this electrically operated valve 5 is the electrically operated valve 5 on liquid collector tube 3 during electrically operated valve 5, j=2 on separating tube 1.A's (i, j) Value denotation coordination is the on off state of the electrically operated valve 5 of (i, j)；As being：When a (i, j)=1, represent that electrically operated valve 5 is Opening, and work as during a (i, j)=0 then it represents that electrically operated valve 5 is closed mode.Then each electrically operated valve of whole heat collector 5 on off state, can be expressed as (0,1) matrix of n × 2, you can whole to be described by the value of each a (i, j) The flow process of the thermal-arrest liquid of heat collector.

Control unit may be summarized to be to the concrete optimized algorithm that the on off state of electrically operated valve 5 is controlled：

It is the setting of object function first：Analysis according to user's request or based on research and/or practice, sets some Individual alternative object function, such as alternative object function can include following three kinds of functions：

I) index that object function draws is the maximum temperaturerise under given flow, that is,：

When m=constant, f₁=max (Δ T)；Wherein Δ T represents the maximum temperature rise of thermal-arrest liquid；

Ii) index that object function draws is the maximum stream flow giving out under liquid temp, that is,：

As thermal-arrest liquid discharge liquid temp T_outDuring=constant, f₂=max (m)；

Iii) index that object function draws is the minimum pump work giving out under liquid temp, that is,：

When going out liquid temp T_outDuring with thermal-arrest fluid flow m=constant, f₃=min (P_pump).

Because heating temperature is set, that is, heat-collecting temperature is also it has been determined that so above-mentioned object function iii) corresponding collection Heat pattern is applied to the present invention, will be applied to circulation heating apparatus by heat collector.

Remote control can select any of which in above-mentioned object function as the mesh under current collection heat pattern Scalar functions, this object function i.e. collection heat pattern of corresponding a certain kind emphasis (particular requirement under applicable situation).Can in one kind In the embodiment of energy, the process that this collection heat pattern is optimized can include：

Initialization step：Random M n meeting the above-mentioned flow process of thermal-arrest liquid that can be used for describing whole heat collector of generation × 2 matrix, that is, the value of element a [i, j] therein randomly select between zero and one, reject above-mentioned M matrix in there is no physics The matrix of meaning, does not such as have the matrix of physical significance at least to include：

A) cause the matrix of the flow process open circuit of thermal-arrest liquid, that is, need to ensure that as a (i, 1) and a (i, 2) can not be 0 simultaneously.

With further reference to figure, whenWhen, due in upper and in lower two electrically operated valves 5 be simultaneously in Closed mode, can lead to the thermal-arrest liquid open circuit in heat collector, do not enable most basic heat collector entrance and flow into, export stream The path going out, belongs to invalid flow process it is therefore desirable to be rejected before being optimized calculating to path.

B) matrix that high-temperature level collector area is less than low-temperature level area, the i.e. heat collector surface of the flow process of every grade of thermal-arrest liquid are rejected The collector area of long-pending≤rear stage, and the collector area of >=previous stage.

With further reference to figure, whenWhen, that is, all electrically operated valves 5 are open mode, and flow process is simultaneously Connection；WhenWhen, it is thtee-stage shiplock thermal-arrest；

WhenWhen, form two-stage thermal-arrest, wherein rudimentary is a flow process thermal-arrest, two grades is two flow process collection Heat, two grades of collector areas are more than one-level collector area, meet the requirements；

And work asWhen, it is similarly formed two-stage thermal-arrest, wherein rudimentary is two flow process thermal-arrests, two grades is one Flow process thermal-arrest, two grades of collector areas are less than one-level collector area, undesirable, should give rejecting.The reason rejecting is：When low When the temperature of level thermal-arrest is sufficiently high, the leaking heat >=solar radiation quantity of senior thermal-arrest can be caused, then the thermal-arrest temperature of heat collector Degree will not continue to raise, and that is, the collector area of senior thermal-arrest is not contributed to the thermal-arrest of heat collector it is therefore desirable to enter to path Row is rejected before optimizing calculating.

Calculate the corresponding target function value of M1 matrix after rejecting, there is physical significance, obtain stage optimal value. Using this corresponding matrix A of stage optimal value as objective matrix B initial value；I.e.：Select the M1 matrix with physical significance In that optimum matrix of corresponding target function value, as the initial value of objective matrix B；

Optimization Steps：Rule according to setting is optimized to above-mentioned objective matrix B, meets stopping of setting in optimization process Only during condition, that is, obtain the target function value under this collection heat pattern.Corresponding thermal-arrest liquid path is obtained according to target function value, It is the thermal-arrest liquid path after optimizing.Control device combines the open and-shut mode of current electrically operated valve 5, electronic to each Valve 5 sends instruction, the path of thermal-arrest liquid is adjusted to the path of this target function value corresponding thermal-arrest liquid.

As a kind of simple example can be：User is at remote control end by the target operation mould of current heat collector Formula is set as that by the index that object function draws be collection heat pattern corresponding to " maximum temperaturerise under given flow ", then control dress Put and each electrically operated valve 5 is sent with the M1 corresponding control instruction of matrix A as initial value：

As above-mentioned M1=1, the path of the thermal-arrest liquid of heat collector of control instruction formation corresponding to matrix A is " multistage Series connection ", is open mode such as (2,5) in five electrically operated valves in Fig. 1, remaining is closed mode, and this is initial value pair The stage optimal value answered, that is, as the initial value of objective matrix B [n, 2].According to this stage optimal value, test, calculate simultaneously The import and export temperature difference of record heat collector.

The process that above-mentioned stage optimal value is optimized can be, control device according to set rule (as empirical value, Random data exchanges etc.) element value in adjustment matrix A, such as the path for thermal-arrest liquid is adjusted to that " most end two-stage is string Connection ", is closed mode such as (1,5) (bottom right, the upper left side) in 5 electrically operated valves in Fig. 1, remaining is open mode, is formed Be the two-stage flow process gone here and there and combine, this first suboptimization stage optimal value being carried out.According to this first time optimal value.Root According to this first time optimal value, test, calculate and record heat collector import and export the temperature difference.

The path of contrast perfecting by stage value and the corresponding two kinds of thermal-arrest liquid of first time optimal value is at heat collector import and export The temperature difference, if the first (" plural serial stage ") is imported and exported the temperature difference and is more than second, control device resends instruction, with " plural serial stage ", as current thermal-arrest liquid flow, does not replace the value of objective matrix B [n, 2], and the rule according to setting is entered Traveling one-step optimization；If the first temperature difference is less than second, need to change flow process, by corresponding for first time optimal value thermal-arrest The path of liquid as current thermal-arrest liquid flow, after that is, the initial value of objective matrix B [n, 2] replaces with change flow process Value, the rule according to setting is optimized further；Until meeting the condition (as iteration or exchange times) setting, will be Thermal-arrest liquid flow corresponding to optimal value once, as the optimal value under this collection heat pattern, calculates under this optimum state of value afterwards The import and export temperature difference of the thermal-arrest liquid of heat collector be maximum temperaturerise (outlet temperature-inlet temperature), and obtain objective matrix The flow process of the corresponding thermal-arrest liquid of B [n, 2].

Certainly, in order to shorten optimized computing cost and improve optimum level it is also possible to carry out according to the actual requirements Programming or existing other of introducing are used for carrying out ripe algorithms of optimization selection.As current in still with previous example, incited somebody to action Heat collector target operational mode be set as by the index that object function draws be " maximum temperaturerise under given flow " institute right The pattern answered, inventor, according to actual demand, has carried out a kind of specific programming to this optimization process, and logic diagram is specifically joined According to Fig. 5, by the algorithm of this programming to the detailed process that the path of thermal-arrest liquid is optimized can be：

501) calculate the M1 corresponding target function value of each matrix, optimum optimum as the stage of selection target functional value Value；Extract this corresponding matrix A of stage optimal value and be stored in objective matrix B [n, 2], first as objective matrix B [n, 2] Initial value.

502) in M1 matrix, matrix selection matrix A1 and A2 is selected with the probability setting and carry out calculated crosswise, again give birth to Become two new matrix A 1 ' and A2 '.The mode of calculated crosswise is as follows：1. random generation integer C between 1 and n；2. by matrix A 1 With (i in the element a1 [i, j] in A2 and a2 [i, j]>C numerical value) is interchangeable；3. there is no physics after rejecting matrix switch The matrix not having physical significance is replaced with B [n, 2] cover by the matrix of meaning simultaneously；Generate the matrix colony after intersecting.

Wherein, the whether selected probability for calculated crosswise of certain matrix in matrix colony, corresponding with this matrix The calculated value of object function is related, that is,：When the function of maximizing computing described in the present embodiment for the object function, then square The corresponding target function value of matrix in battle array colony is bigger, then the selected probability for intersection is bigger；Correspondingly, work as target Function be minimize computing function when, then the corresponding target function value of matrix in matrix colony is less, then selected use Less in the probability intersecting.

503) carry out variation to the matrix colony after obtained above the intersection to calculate, the mode that variation calculates is as follows：1. 1 Random generation integer D and n between；2. with certain probability, determine whether the matrix individuality in above-mentioned matrix colony participates in making a variation Calculate.Herein, single matrix participates in the probability completely random of variation, unrelated with remaining condition any；If 3. some matrix A Take part in variation to calculate, then corresponding for a [i, j] (i=D) numerical value is carried out logic and overturn, that is,：If 1, then it is changed into 0；If It is 0, then be entered as 1；4. there is no the matrix of physical significance after rejecting matrix variation；Still the matrix not having physical significance is used B [n, 2] cover replaces；Generate the matrix colony after variation.

504), after carrying out above-mentioned variation, intersecting, the initial value of optimum for a desired value matrix and B [n, 2] is compared, If corresponding target function value is better than initial value, substitutes initial value with stage optimal value, if initial value is more excellent, continue Retain initial value, that is, obtain stage optimal value, the matrix group body after variation is repeated with aforementioned the intersection and mutation operator, to rank Section optimal value is optimized further.

505) until when reaching other stop conditions of the iterations of setting or setting, in the M1 matrix obtaining In, according to its corresponding target function value, using one group of optimal value as objective matrix B [n, 2] that target function value is optimum.

506) adjust the on off state controlling each electrically operated valve 5 so that the flow path of thermal-arrest liquid is according to target The path determined by optimal value of matrix B [n, 2], is optimal path.

According to actual needs, by adjusting the flow of the thermal-arrest liquid entering heat collector, each in heat collector by controlling The flow process to adjust thermal-arrest liquid for the opening and closing of individual electrically operated valve 5, combining environmental temperature, wind speed, solar radiation, heat collector size etc. Influence factor, for different application scenarios, can realize different going out liquid temp in the downstream going out liquid collector tube 3.As During summer, liquid temp to more than 100 DEG C will be gone out, and then pass through to drive absorption refrigeration or organic Rankine cycle power generation system real The utilization now heat energy collected freezed or generated electricity, improves the conversion ratio of the heat energy collected by heat collector.

It is specially using the step that the thermal-arrest liquid control method of the present invention realizes circulation heating：After start, control unit root Parameter (the such as size of inclusion heat collector, the size of capillary endothermic tube 2, size of CPC4 etc.) and service data according to heat collector (such as environment temperature, wind speed, solar radiation, thermal-arrest liquid out temperature, pressure drop and flow etc.), to the current mesh collecting heat pattern Scalar functions are optimized, and in the case of object function optimal value, the on off state of its each electrically operated valve 5 corresponding is determined Thermal-arrest liquid flow process be theoretic optimal flow process.After thermal-arrest liquid flows out heat collector through optimal flow process, flow into and store Heat exchanger 14 within boiler 13, the confession warm fluid within heat storage water tank 13.Thermal-arrest liquid and between passing through for warm fluid Wall type heat exchanger carrys out heat exchange, heat exchange but do not mix.The main points that the present invention comprises mainly include：

1) pass through with capillary tube heat sucker 2 as heat absorbing member, instead of heat pipe or conventional endothermic tube, processing is simple, low cost Honest and clean, and as a kind of preferred, the external diameter≤4mm (preferably 1～4mm, more preferably 2～4mm) of capillary tube heat sucker 2, and By using CPC4 as beam condensing unit, and as a kind of preferably, the intercepting of CPC4 is 0～4/5 than scope, it is possible to use 3D printing Etc. processing technology shaping, effectively increase the endothermic heat flow density of capillary tube heat sucker 2, decrease area of dissipation, can make The size (being highly less than or equal to 50mm) of CPC4 is suitable with conventional panel heat collector and vacuum tube collector, and has conventional thermal-arrest The focusing ratio that even as high as 10 times of 2～5 times of device.And according to actual conditions and demand, can be with single capillary heat dump 2 institute Corresponding heat collection unit is as basic heat absorbing units it is also possible to will be how with capillary tube heat sucker 2 using two grades of knockouts Parallel connection is as basic heat absorbing units；And entirely heat collector is connected by metal tubes, therefore has certain pressure-bearing Ability, has frost-cracking-preventing ability simultaneously in the winter time.

2) thermal-arrest liquid (can be aforesaid liquid or gaseous medium) is adjusted by the on off state of electrically operated valve 5 Flow path, and the on off state of electrically operated valve 5 can by control unit according to design temperature, environment temperature, wind speed, the sun Radiation intensity, thermal-arrest fluid flow and/or the turnover parameter such as flow pressure drop are determining the whole machine so that under current collection thermal environment Collecting efficiency farthest catered to the demand of application scenario.According to different needs, by adjusting opening of electrically operated valve 5 Off status, to adjust the flow process of the thermal-arrest liquid entering heat collector, can also be adjusted into by the aperture of flow control valve 9 The flow of the thermal-arrest liquid of heat collector is such that it is able to realize the demand for different heating temperatures for the user to the full extent.

Above in association with accompanying drawing, embodiments of the invention are explained, accompanying drawing herein is used to provide to this That invents further understands.Obviously, the foregoing is only the present invention preferably specific embodiment, but protection scope of the present invention Be not limited thereto, any be to one skilled in the art can readily occur in, essentially without depart from the present invention Change or replacement, are also all contained within protection scope of the present invention.

Claims (10)

1. a kind of circulation heating apparatus are it is characterised in that this heating installation includes：

Heating circulation, it includes hot water storage tank, heating end and water circulating pump；And

Solar thermal collector, it includes housing and is placed in the thermal-arrest portion in described housing；

Wherein, described thermal-arrest portion include feed liquor separating tube, go out liquid collector tube and be placed in therebetween, collection that several are arranged side by side Hot cell；

Wherein, each described heat collection unit includes compound parabolic concentrator and is placed on described compound parabolic concentrator across column Capillary tube heat sucker, thermal-arrest liquid in described capillary tube heat sucker absorbs too can by what described compound parabolic concentrator reflected Radiation energy；

Described thermal-arrest liquid described feed liquor separating tube, described go out liquid collector tube and the described capillary tube heat sucker of at least a portion it Between form flow path, described heating end makes described flow path form closed loop；And on the premise of there is physical significance, energy The number of enough described capillary tube heat suckers accessing described flow path by adjustable mode.

2. circulation heating apparatus according to claim 1 it is characterised in that described feed liquor separating tube and described go out liquid liquid collecting Several electrically operated valves are distributed with pipe, by adjusting the on off state of each described electrically operated valve, are in the electronic of open state Valve enable to thermal-arrest liquid described feed liquor separating tube, described go out between liquid collector tube and described capillary tube heat sucker formed The flow path of adjustable, multistage capillary tube heat sucker heat absorption；

Wherein, the direction swimming over to downstream with feed liquor separating tube is for the incremental direction of the heat absorption series of capillary tube heat sucker, then level The capillary tube heat sucker of the endotherm area of the higher capillary tube heat suckers of high-temperature level of number >=the be in relatively low low-temperature level of series Endotherm area.

3. circulation heating apparatus according to claim 2 are it is characterised in that also include control unit, itself and each motor-driven valve Door is electrical connection, for adjusting the on off state of each described electrically operated valve；

And for the flow path that the on off state adjusting each described electrically operated valve through described control unit is formed, in capillary Tube heat sucker heat absorption series be incremented by direction on, when capillary tube heat sucker total heat absorption series be odd number when, located at described enter The electrically operated valve of the most downstream on liquid separating tube should be closed, located at described go out liquid collector tube on most downstream electrically operated valve should When opening；When the heat absorption series of capillary tube heat sucker is even number, otherwise.

4. circulation heating apparatus according to claim 3 are it is characterised in that be additionally provided with regulation stream on described feed liquor separating tube Control valve, by the described aperture adjusting flow control valve of described control unit adjustment, to adjust thermal-arrest liquid in described flowing Flow in path.

5. it is characterised in that also including sensor group, it includes circulation heating apparatus according to claim 3：

First sensor group, its located at the upstream of described feed liquor separating tube, for detecting the feature ginseng in entrance for the thermal-arrest liquid Number；

Second sensor group, its located at described go out liquid collector tube downstream, for detect thermal-arrest liquid in exit feature ginseng Number；

3rd sensor group, in its environment residing for located at described solar thermal collector, for detecting ambient parameter；And

Heating temperature sensor, it supplies the temperature of warm fluid on supply channel for detection；

Above-mentioned (first, second, third) sensor group and described heating temperature sensor are electrically connected with described control unit respectively, For providing the basic parameter of the on off state for adjusting each described electrically operated valve to described control unit.

6. the circulation heating apparatus according to any one of Claims 1 to 5 are it is characterised in that with described capillary heat dump Axial direction be length direction, described compound parabolic concentrator and described capillary heat dump are suitable in the size phase of this length direction Should, and the scope of the intercepting ratio of described compound parabolic concentrator is 0～4/5.

7. the circulation heating apparatus according to any one of Claims 1 to 5 are it is characterised in that described capillary tube heat sucker It is placed in along its length on the focal circle of described compound parabolic concentrator, and the caliber≤4mm of described capillary tube heat sucker.

8. the circulation heating apparatus according to any one of Claims 1 to 5 it is characterised in that by described two-way and more than Described capillary tube heat sucker in parallel form capillary group, the both sides of described capillary group pass through respectively two grades of knockouts with described Feed liquor separating tube with described go out liquid collector tube connect.

9. a kind of flow control method of thermal-arrest liquid is it is characterised in that this flow control method includes：

Control unit gathers parameter and the service data of solar thermal collector, and also collection is for the supply water temperature of warm fluid；

Control unit is based on described parameter, described service data and described leaving air temp, to right under selected current heating mode The object function of the solar thermal collector answered is optimized；

Control unit obtains object function and for the corresponding feed liquor separating tube located at solar thermal collector during optimal value and goes out liquid liquid collecting The target switch state of each electrically operated valve on pipe；

Wherein, described optimal value is minimum pump work under given temperature and flow；

The on off state of electrically operated valve is adjusted to control unit target switch state so that the thermal-arrest liquid of solar thermal collector exists Feed liquor separating tube, go out and form adjustable flow path between liquid collector tube, capillary tube heat sucker and hot water storage tank.

10. flow control method according to claim 9 is it is characterised in that this flow control method also includes：

Control unit shows described leaving air temp and the information drawing according to parameter and service data, including：

The turnover liquid temp of thermal-arrest liquid, flow and pressure reduction；Current ambient parameter；And each described electrically operated valve is current On off state；

The parameter of storage heating circulation and service data, for subsequently recalling.