JP2015117891A - Beam-condensing unit - Google Patents

Abstract

A maximum heating amount per installation area is improved.
A condensing device is different from a plurality of reflecting mirrors 110 in which the direction of a reflecting surface 110a that reflects sunlight is variable, and a plurality of pieces of sunlight that are reflected from the reflecting surface are condensed. The light collecting portions 114 and the light collecting portions 114 are provided corresponding to the respective light collecting portions, and the raw materials are charged, and the raw materials are heated by the heat of sunlight condensed on the light collecting portions to generate products. A plurality of reaction units 116 and a control unit that controls the orientations of the reflecting surfaces of the plurality of reflecting mirrors, and the control unit collects the reflecting mirrors and sunlight reflected by the reflecting mirrors. The combination of can be changed.
[Selection] Figure 5

Description

  The present invention relates to a condensing device that condenses sunlight to heat a raw material.

  2. Description of the Related Art Conventionally, a chemical reactor that collects sunlight and uses the heat to cause a chemical reaction and a power generation device that generates power by turning a turbine have been developed. There are several types of light collecting devices installed in these facilities depending on the form of collecting sunlight. Among them, the tower-type condensing device condenses the sunlight reflected by multiple reflecting mirrors onto the condensing part installed in the condensing tower and throws it into the reaction part with the heat of the condensed sunlight. The prepared raw material is heated (for example, Patent Document 1).

  Since the intensity of sunlight greatly depends on the weather conditions, if it is designed for when the intensity of sunlight is strong, the period during which operation is not possible due to insufficient sunlight will become longer. Therefore, the reflecting mirrors are installed in excess, and when the intensity of sunlight is strong, the light is condensed on the condensing unit only by a part of the reflecting mirrors excluding the excess. On the other hand, when the intensity of sunlight is weak, the light is condensed on the condensing unit using all the reflecting mirrors including the surplus. In this way, regardless of the intensity of sunlight, the raw material supplied to the reaction unit can be sufficiently heated to ensure a long operating period.

JP 2012-202556 A

  As described above, when the reflecting mirrors are installed in an excessive manner, when the intensity of sunlight is strong, some of the reflecting mirrors are in an unused state in which sunlight is not reflected toward the light collecting unit. For this reason, in the conventional light collecting device, the maximum heating amount per installation area of the reflecting mirror is kept low by the amount of the unused reflecting mirror when the intensity of sunlight is strong.

  An object of the present invention is to provide a condensing device capable of improving the maximum heating amount per installation area.

  In order to solve the above-described problems, the light collecting device of the present invention collects sunlight reflected by a reflecting surface and a plurality of reflecting mirrors whose reflecting surfaces that reflect sunlight are variable in position. A plurality of light collecting portions that are illuminated and a plurality of reactions that are provided corresponding to the respective light collecting portions and that the raw materials are charged and the raw materials are heated by the heat of sunlight condensed on the light collecting portions And a control unit that controls the orientation of each reflecting surface of the plurality of reflecting mirrors, and the control unit can change the combination of the reflecting mirror and the condensing unit that collects sunlight reflected by the reflecting mirror It is characterized by being.

  You may further provide the product discharge path provided in parallel for every some reaction part, and the product produced | generated when a raw material is heated from each of a some reaction part is discharged | emitted.

  You may further provide the raw material supply path provided in parallel for every some reaction part, and supplying a raw material to each of several reaction part.

  Any two of the plurality of reaction units may have different allowable heating amounts.

  The illuminometer further measures the intensity of sunlight, and the control unit determines a combination of the reflecting mirror and the condensing unit that collects the sunlight reflected by the reflecting mirror based on the measured value of the illuminometer. Also good.

  A plurality of light collecting units are further provided vertically above the plurality of reflecting mirrors, and further provided with a plurality of light collecting towers each provided with a plurality of reaction units vertically below the plurality of light collecting units. The light may be reflected by a plurality of reaction units.

  According to the present invention, the maximum heating amount per installation area can be improved.

It is the schematic of a condensing device. It is a functional block diagram of a condensing device. It is explanatory drawing for demonstrating the flow of a raw material and a product. It is the schematic of the condensing apparatus of a comparative example. It is explanatory drawing for demonstrating condensing of the condensing device when the intensity | strength of sunlight is weak. It is the schematic of the condensing apparatus in a modification. It is explanatory drawing for demonstrating the flow of the raw material and product in a modification.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating the understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

(Condenser 100)
FIG. 1 is a schematic diagram of the light collecting device 100. As shown in FIG. 1, the light collecting apparatus 100 includes a plurality of reflecting mirrors 110, a light collecting tower 112, a plurality of light collecting parts 114, and a plurality of reaction parts 116.

  The reflecting mirror 110 is configured by a mirror having a reflecting surface 110a, is installed at a low position such as the ground, and receives sunlight and reflects it to the light collecting unit 114.

  In the light collecting tower 112, a plurality of (here, three) light collecting portions 114 having different positions are arranged at a position higher than the reflecting mirror 110. The condensing part 114 is a site | part where the sunlight reflected by the reflective surface 110a of the reflective mirror 110 is condensed.

  The reaction unit 116 is, for example, a furnace that causes a chemical reaction with endotherm to the input raw material, and a plurality of (here, three) reaction units 116 are provided corresponding to the light collecting unit 114. Each reaction part 116 has a condensing part 114 formed on the outer wall, and the raw material inside the reaction part 116 is heated by the heat of sunlight condensed on the condensing part 114, and as a result of a chemical reaction. Is produced.

  In the present embodiment, a case will be described in which a chemical reaction occurs in the raw material supplied into the reaction unit 116 to generate a product. However, the endothermic phenomenon that occurs inside the reaction unit 116 is not limited to a chemical reaction. For example, liquid water may be used as a raw material, and the water may be heated and boiled to generate water vapor as a product. The water vapor generated in this way can be used for power generation processing via, for example, a turbine.

  FIG. 2 is a functional block diagram of the light collecting device 100. As shown in FIG. 2, the light collecting apparatus 100 includes an illuminometer 118, an angle adjuster 120, a raw material supply unit 122, and a control unit 124.

  For example, the illuminance meter 118 is installed on the ground in the vicinity of the reflecting mirror 110 so as not to overlap the reflecting mirror 110, and receives sunlight to measure the intensity of sunlight.

  The angle adjuster 120 is constituted by, for example, a motor, can change the posture of the reflecting mirror 110, and makes the direction of the reflecting surface 110a of the reflecting mirror 110 variable. That is, in each of the reflecting mirrors 110, the direction (reflection direction) of the reflecting surface 110a that reflects sunlight is variable.

  The raw material supply unit 122 is a functional unit that supplies raw materials to the plurality of reaction units 116, and includes a valve 122 a provided in each of the raw material supply paths 126 described later. The valve 122a makes the flow rate of the raw material supplied to the reaction unit 116 variable.

  The control unit 124 is composed of a semiconductor integrated circuit including a CPU (Central Processing Unit), reads programs and parameters for operating the CPU itself from the ROM, and cooperates with the RAM as a work area and other electronic circuits. To manage and control the entire condenser 100. The control unit 124 acquires the measurement value of the illuminometer 118 and operates the angle adjuster 120 based on the intensity of sunlight indicated by the measurement value, the position of the sun calculated from the date and time, and the like. Thus, the control unit 124 controls the orientation of each of the reflecting surfaces 110a of the plurality of reflecting mirrors 110 so that sunlight is received and reflected to the light collecting unit 114 appropriately.

  Moreover, the control part 124 adjusts the opening degree of the valve | bulb 122a distribute | arranged to the raw material supply path 126 which supplies a raw material to the reaction part 116 according to the heating amount by each sunlight of the reaction part 116. FIG. For example, the control unit 124 closes the valve 122a disposed in the raw material supply path 126 that supplies the raw material to the reaction unit 116 that has stopped operating. The stoppage of the operation of the reaction unit 116 will be described in detail later.

  FIG. 3 is an explanatory diagram for explaining the flow of raw materials and products. As shown in FIG. 3, the concentrator 100 is provided with a raw material supply path 126 and a product discharge path 128 in parallel with each of the three reaction units 116 provided in the condensing tower 112. .

  That is, the raw material supply path 126 and the product discharge path 128 are provided in parallel for each of the plurality of reaction units 116. The raw material supply path 126 is a flow path for supplying a raw material to each of the plurality of reaction sections 116, and the product discharge path 128 is a flow path for discharging a product from each of the plurality of reaction sections 116.

  Hereinafter, the plurality of reaction units 116 are referred to as a reaction unit 116a, a reaction unit 116b, and a reaction unit 116c in order from the top of the light collecting column 112. Further, the condensing part 114 formed on the outer wall of the reaction part 116a is the condensing part 114a, and the condensing part 114 formed on the outer wall of the reaction part 116b is the condensing part 114b and the collecting part formed on the outer wall of the reaction part 116c. The light unit 114 is referred to as a light collecting unit 114c.

  In the present embodiment, the reaction unit 116a, the reaction unit 116b, and the reaction unit 116c have different allowable heating amounts. Here, the allowable amount of heating is, for example, the amount of heat that can be received per unit time, and the amount of heat that each reaction unit 116 can absorb by a chemical reaction per unit time. That is, the allowable amount of heating is the rated capacity of the endothermic amount in each chemical reaction of the reaction unit 116.

  For example, under the weather condition in which the intensity of sunlight is the strongest in the assumed range, sunlight is condensed on the condensing unit 114 by all the reflecting mirrors 110 and the energy of the sunlight that can be transferred to the reaction unit 116 is 100%. At this time, the rated capacity is 50% for the reaction part 116a, 30% for the reaction part 116b, and 20% for the reaction part 116c. When all the reaction units 116 are operating at the rated capacity, the light collecting device 100 is fully operating.

  However, there is a case where the intensity of sunlight is weak, such as rainy weather or winter, and even if all the reflecting mirrors 110 concentrate the light on the light collecting unit 114, the energy of the solar light can be transferred to the reaction unit 116 by less than 100%. .

  FIG. 4 is a schematic diagram of the light collecting apparatus 10 of the comparative example. For example, when the energy of sunlight that can be transferred to the reaction unit 16 is 80%, there is only one light collecting unit 14 or one reaction unit 16 as in the light collecting device 10 of the comparative example. Only 80% of the rated capacity can be devoted to the endothermic reaction of the chemical reaction. As described above, when the intensity of sunlight is insufficient, it is possible to some extent by suppressing the flow rate of the raw material supplied to the reaction unit 16 and suppressing the reaction amount of the chemical reaction per hour.

  However, for example, if the energy of sunlight that can be transferred to the reaction unit 16 is too short, such as 30%, it cannot be handled only by adjusting the flow rate of the raw material, and the chemical reaction cannot be continued. The state cannot be maintained.

  FIG. 5 is an explanatory diagram for explaining the light collection of the light collecting device 100 when the intensity of sunlight is weak. The control unit 124 determines a combination of the reflecting mirror 110 and the condensing unit 114 that collects the sunlight reflected by the reflecting mirror 110 based on the measurement value of the illuminometer 118.

  For example, it is assumed that the energy of sunlight that can be transferred to the reaction unit 116 is 80% based on the measurement value of the illuminance meter 118. The control unit 124 controls the direction of each of the reflecting surfaces 110a of the plurality of reflecting mirrors 110 so as to condense sunlight of 50% energy into the condensing unit 114a and 30% into the condensing unit 114b. Sunlight is not condensed on the condensing part 114c.

  As a result, in the reaction parts 116a and 116b, sufficient heating for the rated capacity is performed, and an optimum chemical reaction occurs. At this time, the chemical reaction is stopped in the reaction section 116c. The control unit 124 closes the valve 122a disposed in the raw material supply path 126 that supplies the raw material to the reaction unit 116c.

  When the energy of sunlight that can be transferred to the reaction unit 116 is 30%, the control unit 124 controls the direction of each of the reflecting surfaces 110a of the plurality of reflecting mirrors 110, so that the condensing unit 114b has 30% of energy. Concentrate sunlight for energy. Sunlight is not condensed on the condensing part 114a and the condensing part 114c.

  As a result, in the reaction part 116b, sufficient heating for the rated capacity is performed, and an optimum chemical reaction occurs. At this time, the chemical reaction is stopped in the reaction part 116a and the reaction part 116c. The control unit 124 closes each valve 122a disposed in the raw material supply path 126 that supplies the raw material to the reaction unit 116a and the reaction unit 116c.

  As described above, the light collecting device 100 includes a plurality of light collecting units 114 and reaction units 116, and the control unit 124 collects the reflecting mirror 110 and the sunlight reflected by the reflecting mirror 110. 114 combinations can be changed. Therefore, it becomes possible to expand the range of the intensity | strength of sunlight which can be operate | moved by increasing / decreasing the number of the light collection parts 114 operated according to the intensity | strength of sunlight.

  Further, it is not necessary to make the reflecting mirror 110 redundant, and the sunlight received by all the reflecting mirrors 110 is always reflected by any one of the light collecting portions 114. Therefore, it is possible to improve the maximum heating amount per installation area as compared with a configuration in which a part of the reflecting mirrors 110 is unused when the reflecting mirrors 110 are installed in excess and the intensity of sunlight is strong. Become.

  Moreover, since the product discharge path 128 is provided in parallel for each reaction unit 116, for example, the product discharged from the reaction unit 116c does not pass through the reaction unit 116a and the reaction unit 116b. Therefore, even if the operation of the reaction unit 116a and the reaction unit 116b is stopped, the product of the reaction unit 116c is not affected, and the product can be efficiently generated.

  Similarly, since the raw material supply path 126 is provided in parallel for each reaction unit 116, for example, the raw material supplied to the reaction unit 116c does not pass through the reaction unit 116a and the reaction unit 116b. Therefore, even if the operation of the reaction unit 116a and the reaction unit 116b is stopped, the raw material is supplied to the reaction unit 116c without passing through the reaction unit 116a and the reaction unit 116b. For this reason, the product can be efficiently generated without being affected by the flow rate of the raw material being restricted by passing through the reaction section 116a and the reaction section 116b whose operation is stopped.

(Modification)
FIG. 6 is a schematic diagram of a light collecting device 200 according to a modification. As shown in FIG. 6, in the modification, the light collecting device 200 includes a plurality (three in this case) of light collecting towers 212. Each condensing tower 212 is provided with a condensing unit 214 at a position higher than the height of the reflecting mirror 110. That is, the plurality of light collecting towers 212 support the plurality of light collecting portions 214 vertically above the plurality of reflecting mirrors 110.

  The condensing unit 214 is a part where the sunlight reflected by the reflecting surface 110a of the reflecting mirror 110 is collected, and includes, for example, a mirror, and the sunlight collected by the condensing unit 214 is Reflects vertically downward.

  FIG. 7 is an explanatory diagram for explaining the flow of raw materials and products in a modified example. As shown in FIG. 7, in the light collecting apparatus 200 of the modified example, the plurality of reaction units 216 are respectively arranged below the light collecting unit 214 in each light collecting tower 212. The condensing part 214 reflects the condensed sunlight toward the reaction part 216 arranged vertically downward.

  As described above, the light collecting device 200 is a so-called beam-down method, and reflects the sunlight collected on the upper part of the light collecting tower 212 toward the reaction unit 216 arranged on the lower part of the light collecting tower 212. In the reaction unit 216, a chemical reaction is caused by the heat of the reflected sunlight.

  As described above, the beam-down type condensing apparatus 200 does not require the reaction unit 216 that is likely to be heavy due to the input of raw materials to be disposed on the upper part of the condensing tower 212, and the load resistance of the condensing tower 212 can be small. . Therefore, even if a plurality of light collecting towers 212 are installed to provide a plurality of light collecting parts 214 and reaction parts 216 as in the light collecting device 200, the installation cost of each light collecting tower 212 is low. An increase in the installation cost of the entire light collecting device 200 can be suppressed. In addition, since the reaction part 216 is at a low position, there is an advantage that the maintainability of the reaction part 216 is good.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to this embodiment. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Is done.

  For example, in the embodiment and the modification described above, the case where the product discharge path 128 is provided in parallel for each of the reaction units 116 and 216 has been described. However, the product discharge path may be a path connecting the plurality of reaction units 116 and 216 in series.

  Similarly, in the embodiment and the modification described above, the case where the raw material supply path 126 is provided in parallel for each of the reaction units 116 and 216 has been described. However, the raw material supply path may be a path connecting a plurality of reaction units 116 and 216 in series.

  In the above-described embodiment and modification, the case where all the three reaction units 116 and 216 have different allowable heating amounts (rated capacities) has been described. However, the rated capacities of the plurality of reaction units 116 and 216 may all be equal. However, at least any two of the plurality of reaction units 116 and 216 have various combinations of which reaction units 116 and 216 are operated if the rated capacities are different, and the range of the intensity of sunlight that can be operated. Can be further expanded.

  In the above-described embodiment, the case where the rated capacity is 50% for the reaction part 116a, 30% for the reaction part 116b, and 20% for the reaction part 116c has been described. However, the rated capacity of each reaction unit 116 may be an arbitrary value. Furthermore, as long as there are a plurality of reaction units 116 and condensing units 114, there may be two or four or more.

  In the embodiment and the modification described above, the control unit 124 determines a combination of the light collecting units 114 and 214 that collect the sunlight reflected by the reflecting mirror 110 based on the measurement value of the illuminance meter 118. Explained. However, the illuminance meter 118 is not an essential configuration, and the control unit may change the combination of the light collecting units 114 and 214 that collect the sunlight reflected by the reflecting mirror 110 according to the operation input of the operator. Good. However, according to the configuration in which the control unit 124 determines the combination of the light collecting units 114 and 214 that collect the sunlight reflected by the reflecting mirror 110 based on the measurement value of the illuminometer 118, the control unit 124 can quickly respond to changes in weather. It is possible to determine the combination of the light condensing units 114 and 214 correspondingly to efficiently generate a product.

  INDUSTRIAL APPLICABILITY The present invention can be used in a light collecting device that concentrates sunlight and heats raw materials.

100, 200 Condensing device 110 Reflecting mirror 110a Reflecting surface 112, 212 Condensing tower 114, 114a, 114b, 114c, 214 Condensing unit 116, 116a, 116b, 116c, 216 Reaction unit 118 Illuminance meter 124 Control unit 126 Raw material supply Path 128 Product discharge path

Claims (6)

A plurality of reflecting mirrors in which the direction of the reflecting surface for reflecting sunlight is variable;
A plurality of condensing units that are different in position and collect sunlight reflected by the reflecting surface;
A plurality of reaction units that are provided corresponding to each of the light collecting units, are charged with the raw material, and are heated by the heat of sunlight collected on the light collecting unit;
A control unit that controls the orientation of each of the reflecting surfaces of the plurality of reflecting mirrors;
With
The said control part can change the combination of the said condensing part which condenses the said reflecting mirror and the sunlight which this reflecting mirror reflected.   2. The apparatus according to claim 1, further comprising a product discharge path that is provided in parallel for each of the plurality of reaction units, and that discharges a product generated by heating the raw material from each of the plurality of reaction units. The light collecting device described in 1.   The light collecting device according to claim 1, further comprising a raw material supply path that is provided in parallel for each of the plurality of reaction units and supplies the raw material to each of the plurality of reaction units.   The condensing device according to any one of claims 1 to 3, wherein any two of the plurality of reaction units have different allowable heating amounts. It further includes an illuminometer that measures the intensity of sunlight,
The said control part determines the combination of the said condensing part which condenses the sunlight which the said reflective mirror and this reflective mirror reflected based on the measured value of the said illumination meter. 5. The light collecting device according to any one of 4 above. The plurality of condensing units are further supported vertically above the plurality of reflecting mirrors, and further comprising a plurality of condensing towers arranged with the plurality of reaction units respectively vertically below the plurality of condensing units,
6. The condensing device according to claim 1, wherein the plurality of condensing units are configured by mirrors and reflect the collected light to the plurality of reaction units.

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