阅读说明：本技术 槽式太阳能发电系统的太阳光跟踪装置及跟踪方法 (The solar tracking device and tracking of trough solar power generation system ) 是由 何开浩 于 2019-09-29 设计创作，主要内容包括：本发明涉及槽式太阳能发电系统的太阳光跟踪装置及跟踪方法,包括槽式聚光器、集热管、太阳光跟踪器,太阳光跟踪器包括透明玻璃板及相互平行的第一反光层、第二反光层,第一反光层设于透明玻璃板的上壁面上且朝下布置,第二反光层设于透明玻璃板的下壁面上且朝上布置,第一反光层上开有能供光线穿过的孔,转轴轴线与集热管轴线所在的平面为β,透明玻璃板、第一反光层、第二反光层均垂直平面β布置。只要在第一反光层与第二反光层之间多次反射的光线构成的平面α与平面β大致平行,就能使槽式聚光器聚焦位置准确,取消了安装方向对槽式太阳能发电系统的限制,便于安装,且便于实时对槽式聚光器角度进行调节使其保持聚焦准确,有利于提高发电效果。(The present invention relates to the solar tracking device of trough solar power generation system and trackings, including slot-type optical collector, thermal-collecting tube, sun light tracking device, sun light tracking device includes transparency glass plate and the first reflective layer being parallel to each other, second reflective layer, first reflective layer is set on the upper wall surface of transparency glass plate and arranges downward, second reflective layer is set on the lower wall surface of transparency glass plate and upwardly disposed, being provided on first reflective layer can be for hole that light passes through, plane where shaft axis and thermal-collecting tube axis is β, transparency glass plate, first reflective layer, the equal vertical plane β arrangement of second reflective layer.As long as the plane α and plane β that the light of multiple reflections is constituted between the first reflective layer and the second reflective layer are substantially parallel, slot-type optical collector focal position can be made accurate, eliminate limitation of the installation direction to trough solar power generation system, it is easily installed, and make it keep focusing accurately convenient for slot-type optical collector angle is adjusted in real time, be conducive to improve generating effect.)

1. a kind of solar tracking device of trough solar power generation system, including slot-type optical collector (1) and thermal-collecting tube (2), institute The bottom for stating slot-type optical collector (1) is equipped with the shaft (11) extended along its length, and the thermal-collecting tube (2) is set to slot light collection The top of device (1) and the focal point for being located at slot-type optical collector (1), it is characterised in that: further include sun light tracking device (3), this is too Sun tracker (3) includes transparency glass plate (31) and the first reflective layer (32) being parallel to each other, the second reflective layer (33), described First reflective layer (32) is set on the upper wall surface of transparency glass plate (31) and arranges downward, and second reflective layer (33) is set to saturating On the lower wall surface of bright glass plate (31) and upwardly disposed, being provided on first reflective layer (32) can be for hole that light passes through (321), shaft (11) axis and the plane where thermal-collecting tube (2) axis are β, and the transparency glass plate (31), first are instead Photosphere (32), the second reflective layer (33) vertical plane β arrangement.

2. the solar tracking device of trough solar power generation system according to claim 1, it is characterised in that: described Bright glass plate (31) is configured to strip, to pass through the hole (321) and extend along transparency glass plate (31) length direction straight As reference line (322), the end of the transparency glass plate (31) is equipped with close to reference line (322) arrangement and energy detection light line The sensor module (4) of line injection position.

3. the solar tracking device of trough solar power generation system according to claim 2, it is characterised in that: the biography Sensor component (4) includes first sensor (41) and second sensor (42), and the first sensor (41) is set to transparent glass On the end face of plate (31), the second sensor (42) is two groups and is respectively arranged on the side positioned opposite of transparency glass plate (31) On wall.

4. the solar tracking device of trough solar power generation system according to claim 2, it is characterised in that: further include Can drive shaft (11) around its own axis reciprocally swinging driving mechanism, the driving mechanism and the sensor module (4) by It controls in same control system.

5. the solar tracking device of trough solar power generation system described in any claim according to claim 1~4, It is characterized by: the sun light tracking device (3) is at least two groups, one group of sun light tracking device (3) is poly- close to the slot type The first end of light device (1) arranges that second end of another group of sun light tracking device (3) close to the slot-type optical collector (1) is arranged.

6. the solar tracking device of trough solar power generation system described in any claim according to claim 1~4, It is characterized by: first reflective layer (32), the second reflective layer (33) are anti-coated on the metal on transparency glass plate (31) Penetrate film.

7. the solar tracking device of trough solar power generation system described in any claim in a kind of claim 1~6 Tracking, it is characterised in that the following steps are included:

(1) sunlight is injected between the first reflective layer (32) and the second reflective layer (33) from hole (321) and is penetrated after multiple reflections Out, if the plane α that the light of multiple reflections is constituted between the first reflective layer (32) and the second reflective layer (33) and plane β Substantially parallel, i.e., the light projected through transparency glass plate (31) side wall is axially projected along shaft (11), then shows slot-type optical collector (1) focal position is accurate, is not necessarily to adjustment direction；

(2) if through transparency glass plate (31) side wall project light to (11) first lateral deviation of shaft turn, make shaft (11) to its First side rotation, until the light projected through transparency glass plate (31) side wall is axially projected along shaft (11)；

(3) if through transparency glass plate (31) side wall project light to shaft (11) second side deflect, make shaft (11) to its Second side rotation, until the light projected through transparency glass plate (31) side wall is axially projected along shaft (11).

8. the tracking of the solar tracking device of trough solar power generation system, feature described in a kind of claim 4 exist In the following steps are included:

(1) sunlight is injected between the first reflective layer (32) and the second reflective layer (33) from hole (321) and is penetrated after multiple reflections Out, if first sensor (41) detects that light projects signal and second sensor (42) can't detect light and project signal, Then show that slot-type optical collector (1) focal position is accurate, is not necessarily to adjustment direction；

(2) if first sensor (41) can't detect the second sensing that light projects signal, (31) first side of transparency glass plate Device (42) can't detect light injection signal, the second sensor (42) of transparency glass plate (31) second side detects that light projects Signal, then driving mechanism drive shaft (11) rotates, and keeps slot-type optical collector (1) and sun light tracking device (3) synchronous to transparent glass (31) second side oscillation of glass plate, until first sensor (41) detect that light projects signal and second sensor (42) detection not Signal is projected to light；

(3) if first sensor (41) can't detect the second sensing that light projects signal, (31) first side of transparency glass plate Device (42) detects that light projects signal, the second sensor (42) of transparency glass plate (31) second side can't detect light injection Signal, then driving mechanism drive shaft (11) rotates, and keeps slot-type optical collector (1) and sun light tracking device (3) synchronous to transparent glass (31) first side oscillation of glass plate, until first sensor (41) detect that light projects signal and second sensor (42) detection not Signal is projected to light.

Technical field

The present invention relates to field of solar thermal power generation, refer specifically to a kind of solar tracking device of trough solar power generation system And tracking.

Background technique

Solar energy is that a kind of distribution density is smaller, intermittent and spatial distribution is all in the moment changed energy, with me Live in known conventional energy resource have very big difference, this is just to the collection of solar energy, using more stringent requirements are proposed.Mesh Before, it is most widely solar water heater to Solar use, still, it can only meet daily life demand, to water Degree of heat it is limited, and be unable to satisfy industrial high-temperature-hot-water and steam needs.In order to meet people to solar heat benefit Requirements at the higher level, it is desirable that solar thermal collector can more effectively absorb solar radiant energy.

Common solar power generation mode has dish-style, tower, slot type and linear Fresnel mode in life, and applies most Be trough solar power generation system.Authorize the Chinese invention patent " solar energy high-temperature heat collection of Publication No. CN104296396B Equipment " (application number: CN201410588479.5) disclose a kind of structure comprising and upper layer slot-type optical collector, lower layer's slot type are poly- Light device, upper layer thermal-collecting tube, lower layer's thermal-collecting tube and double-deck heat collecting pipe holder；Upper layer thermal-collecting tube and lower layer's thermal-collecting tube pass through bilayer Collector tube holder is connected and fixed, and upper layer thermal-collecting tube corresponds to the setting of upper layer slot-type optical collector and is located at the focus of upper layer slot-type optical collector Place, lower layer's thermal-collecting tube correspond to the setting of lower layer's slot-type optical collector and are located at the focal point of lower layer's slot-type optical collector；Upper layer thermal-collecting tube with Lower layer's thermal-collecting tube structure is identical, is made of at least one evacuated collector tube, and evacuated collector tube has a metal straight pipe, and metal is straight Pipe is outer to be arranged a vacuum glass inner tube, a vacuum glass outer tube is arranged outside vacuum glass inner tube, setting work is situated between in metal straight pipe Matter is vacuum layer between vacuum glass inner tube and vacuum glass outer tube.Above structure is conducive to too high thermal efficiency height and uses the longevity Life length.Authorization Notice No. is Chinese invention patent " groove type paraboloid solar concentrating collector and its group of CN104567018B Dress technique " (application number: CN201510010790.6) disclose a kind of structure, groove type paraboloid solar concentrating collector packet Heat absorption component, mirror assembly, support device are included, support device includes stabilizer blade, long axis, parabolic shape gusset piece；Reflect microscope group Part includes parabolic shape supporter, sheet metal.Above structure dismounting is more convenient.

Current trough solar power generation system makes the sun for the ease of being adjusted constantly to slot-type optical collector angle Luminous energy in directive heating tube, is limited after slot-type optical collector reflects by current sunlight irradiating angle calculation method, peace Dress mode is all positive north and south axial direction or positive thing axial direction and is parallel to horizontal plane installation, this is not only trough solar power generation system Installation bring inconvenience, also influence condenser focus aim at accuracy, and then influence generating effect.

Summary of the invention

Groove type solar can be made to send out the technical problem to be solved by the invention for the present situation of prior art is to provide a kind of The installation direction of electric system is unrestricted, improves condenser focusing accuracy and then improves the trough solar power generation of generating effect The solar tracking device of system.

Another technical problem to be solved by this invention is the status for the prior art, provides a kind of above-mentioned slot type too The tracking of the solar tracking device of positive energy electricity generation system, this method can be such that condenser focuses always accurately, improve power generation Effect.

The technical scheme of the invention to solve the technical problem is: a kind of sun of trough solar power generation system Optrack, including slot-type optical collector and thermal-collecting tube, the bottom of the slot-type optical collector is equipped with to be extended along its length Shaft, the thermal-collecting tube are set to the top of slot-type optical collector and are located at the focal point of slot-type optical collector, it is characterised in that: further include Sun light tracking device, the sun light tracking device include transparency glass plate and the first reflective layer being parallel to each other, the second reflective layer, institute The first reflective layer is stated on the upper wall surface of transparency glass plate and is arranged downward, second reflective layer is set to transparency glass plate On lower wall surface and upwardly disposed, being provided on first reflective layer can be for the hole that light passes through, the shaft axis and thermal-collecting tube Plane where axis is β, the equal vertical plane β arrangement of the transparency glass plate, the first reflective layer, the second reflective layer.

Preferably, the transparency glass plate is configured to strip, to pass through the hole and along transparency glass plate length direction For the straight line of extension as reference line, the end of the transparency glass plate, which is equipped with, arranges close to reference line and can detect light injection The sensor module of position.Theoretically transparent glass plate shape of the invention is unrestricted, but in order to save material, be easily installed Deng being designed to strip, setting the sensor component is convenient for intelligent measurement light injection angle, to determine sunlight The reflection line position injected between the first reflective layer and the second reflective layer from hole and formed through multiple reflections, and then judge the reflection Whether face is parallel with plane β, if the reflecting surface is parallel with plane β, then it is assumed that the focusing of slot-type optical collector is accurate.

Preferably, the sensor module includes first sensor and second sensor, and the first sensor is set to saturating On the end face of bright glass plate, the second sensor is two groups and is respectively arranged on the side wall positioned opposite of transparency glass plate. The array arrangement on transparency glass plate is constituted by photosensitive equipment for first sensor and second sensor.Above structure is conducive to anti- The face position of penetrating carries out increasing accurate judgement, and more accurate control range is provided for the angular adjustment of slot-type optical collector, into And improve focusing accuracy.

In the above embodiments, the solar tracking device of the trough solar power generation system further includes energy drive shaft Around the driving mechanism of its own axis reciprocally swinging, the driving mechanism and the sensor module are controlled by same control system. The assembly method of above-mentioned driving mechanism and shaft is existing conventional techniques, and this will not be repeated here；Driving mechanism and sensor module It is controlled by same control system, the signal convenient for detecting according to sensor module adjusts slot light collection by driving mechanism in real time The angle of device.

Preferably, the sun light tracking device is at least two groups, and one group of sun light tracking device is close to the slot light collection The first end of device arranges that another group of sun light tracking device is arranged close to the second end of the slot-type optical collector.Work as in view of one day In, with the variation of sun angular, the light of injection aperture may have light and when normal parallel, at this time sensor Component can not accurately detect light signal；Using the above structure, since there are position deviations between two groups of sun light tracking devices, just It can guarantee to can detecte light reflection signal always, guarantee sun light tracking device energy normal use.

Preferably, first reflective layer, the second reflective layer are coated on the metallic reflective coating on transparency glass plate.

A kind of tracking of the solar tracking device of above-mentioned trough solar power generation system, it is characterised in that including with Lower step:

(1) sunlight is injected between the first reflective layer and the second reflective layer from hole and is projected after multiple reflections, if The plane α that the light of multiple reflections is constituted between first reflective layer and the second reflective layer is substantially parallel with plane β, i.e., through transparent The light of glass plate side wall is axially projected along shaft, then shows that slot-type optical collector focal position is accurate, is not necessarily to adjustment direction；

(2) if the light projected through transparency glass plate side wall turns to the first lateral deviation of shaft, turn shaft to its first side It is dynamic, until the light projected through transparency glass plate side wall is axially projected along shaft；

(3) if the light projected through transparency glass plate side wall is deflected to shaft second side, turn shaft to its second side It is dynamic, until the light projected through transparency glass plate side wall is axially projected along shaft.

A kind of tracking of the solar tracking device of above-mentioned trough solar power generation system, it is characterised in that including with Lower step:

(1) sunlight is injected between the first reflective layer and the second reflective layer from hole and is projected after multiple reflections, if the It detects that light projects signal and second sensor can't detect light and project signal at one sensor Ref line endpoints, then shows Slot-type optical collector focal position is accurate, is not necessarily to adjustment direction；

(2) if first sensor can't detect the second sensor inspection that light projects signal, the first side of transparency glass plate Do not detect that light projects signal, the second sensor of transparency glass plate second side detects that light projects signal, then driving mechanism Drive shaft rotation keeps slot-type optical collector and sun light tracking device synchronous to the second side oscillation of transparency glass plate, until first passes Detect that light projects signal and second sensor can't detect light and project signal at sensor reference line endpoint；

(3) if first sensor can't detect the second sensor inspection that light projects signal, the first side of transparency glass plate Measure that light projects signal, the second sensor of transparency glass plate second side can't detect light and project signal, then driving mechanism Drive shaft rotation keeps slot-type optical collector and sun light tracking device synchronous to the first side oscillation of transparency glass plate, until first passes Detect that light projects signal and second sensor can't detect light and project signal at sensor reference line endpoint.

Compared with the prior art, the advantages of the present invention are as follows: the present invention is provided with sun light tracking device, as long as anti-first The plane α that the light of multiple reflections is constituted between photosphere and the second reflective layer is substantially parallel with plane β, can make slot light collection Device focal position is accurate, to make the tracking of sunlight independent of existing calculation, eliminates installation direction to slot type The limitation of solar power system is not only convenient for installing, and makes its holding convenient for slot-type optical collector angle is adjusted in real time It is accurate to focus, and is conducive to improve generating effect.

Detailed description of the invention

Fig. 1 is the partial structure diagram (not including driving mechanism) of the embodiment of the present invention；

Fig. 2 is the structural schematic diagram of another angle of Fig. 1；

Fig. 3 is the structural schematic diagram of sun light tracking device in the embodiment of the present invention；

Fig. 4 is reflective condition schematic diagram of the sunlight in sun light tracking device in the embodiment of the present invention.

Specific embodiment

The present invention will be described in further detail below with reference to the embodiments of the drawings.

As shown in figures 1-4, the solar tracking device of the trough solar power generation system of the present embodiment includes slot light collection Device 1, thermal-collecting tube 2 and sun light tracking device 3, the reflective surface that slot-type optical collector 1 has cross section parabolic, since slot type is poly- The specific structure of light device 1 is therefore existing conventional techniques are not repeated herein.The bottom of slot-type optical collector 1 is equipped with along length The shaft 11 that direction extends, a driving mechanism can drive the shaft 11 around its own axis reciprocally swinging, above-mentioned driving mechanism with The assembly method of shaft 11 is existing conventional techniques, and this will not be repeated here.Thermal-collecting tube 2 passes through the bracket 111 stretched out in shaft 11 Set on the top of slot-type optical collector 1, and thermal-collecting tube 2 is located at the focal point of slot-type optical collector 1.

As shown in figure 3, the sun light tracking device 3 of the present embodiment includes transparency glass plate 31 and is parallel to each other first reflective The 32, second reflective layer 33 of layer, the first reflective layer 32 is set on the upper wall surface of transparency glass plate 31 and reflective face-down arrangement, and second Reflective layer 33 is set on the lower wall surface of transparency glass plate 31 and reflective surface is upwardly disposed, and being provided on the first reflective layer 32 can be for light The hole 321 passed through, 11 axis of shaft and the plane where 2 axis of thermal-collecting tube are β, transparency glass plate 31, the first reflective layer 32, the The equal vertical plane β arrangement of two reflective layer 33.First reflective layer 32, the second reflective layer 33 are coated on the gold on transparency glass plate 31 Belong to reflectance coating, such as can be mercury film.

The transparency glass plate 31 of the present embodiment is configured to strip, to pass through hole 321 and along 31 length side of transparency glass plate To extension straight line as reference line 322, the end of transparency glass plate 31 is equipped with close to the arrangement of reference line 322 and can detection light The sensor module 4 of line injection position.Sensor module 4 and above-mentioned driving mechanism are controlled by same control system, in order to root The signal detected according to sensor module 4 adjusts the angle of slot-type optical collector 1 by driving mechanism in real time.Above-mentioned transparency glass plate 31 shapes are unrestricted, but in order to save material, be easily installed, the present embodiment is designed to strip, and above-mentioned biography is arranged Sensor component 4 is convenient for intelligent measurement light injection angle, to determine that sunlight injects the first reflective layer 32 and second from hole 321 The reflecting surface alpha position formed between reflective layer 33 and through multiple reflections, and then judge whether reflecting surface α is parallel with plane β, such as Fruit reflecting surface α is parallel with plane β, then it is assumed that the focusing of slot-type optical collector 1 is accurate.

The sensor component 4 includes first sensor 41 and second sensor 42, and first sensor 41 is set to transparent glass On the end face of glass plate 31, second sensor 42 is two groups and is respectively arranged on the side wall positioned opposite of transparency glass plate 31.On It states structure and is conducive to carry out reflecting surface alpha position more accurately judgement, and the angular adjustment for slot-type optical collector 1 provides more It is accurately controlled range, and then improves focusing accuracy.

The sun light tracking device 3 of the present embodiment is two groups, and one group of sun light tracking device 3 is close to the first of slot-type optical collector 1 End arrangement, another group of sun light tracking device 3 are arranged close to the second end of slot-type optical collector 1.In one day, with the sun The variation of angular, the light of injection aperture 321 may have light and when normal parallel, at this time 4 nothing of sensor module Method accurately detects light signal；Using the above structure, since there are position deviations between two groups of sun light tracking devices 3, so that it may Guarantee can detecte light reflection signal always, guarantee that sun light tracking device 3 can normal use.

The tracking of the solar tracking device of slot type solar power system in the present embodiment are as follows:

(1) sunlight is injected between the first reflective layer 32 and the second reflective layer 33 from hole 321 and is projected after multiple reflections, If first sensor 41 detects that light projects signal and second sensor 42 can't detect light and project signal, show slot 1 focal position of formula condenser is accurate, is not necessarily to adjustment direction；

(2) if can't detect light at 41 benchmark line endpoints of first sensor projects signal, transparency glass plate 31 first The second sensor 42 of side can't detect light injection signal, the second sensor 42 of 31 second side of transparency glass plate detects light Line projects signal, then driving mechanism drive shaft 11 rotates, and keeps slot-type optical collector 1 and sun light tracking device 3 synchronous to transparent glass 41 second side oscillation of glass plate, until detecting that light projects signal and second sensor 42 at 41 benchmark line endpoints of first sensor It can't detect light and project signal；

(3) if first sensor 41 can't detect the second sensing that light projects signal, 31 first side of transparency glass plate Device 42 detects that light projects signal, the second sensor 42 of 31 second side of transparency glass plate can't detect light and project signal, Then driving mechanism drive shaft 11 rotates, and keeps slot-type optical collector 1 and sun light tracking device 3 synchronous to 41 first side of transparency glass plate It swings, until detecting that light projects signal and second sensor 42 can't detect light at 41 benchmark line endpoints of first sensor Project signal.