Patent Publication Number: US-2021164694-A1

Title: Concentrated solar power generation system

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims the benefit of priority from Chinese Patent Application No. 201911205141.6, filed on Nov. 29, 2019. The content of the aforementioned application, including any intervening amendments thereto, is incorporated herein by reference in its entirety. 
     TECHNICAL FIELD 
     The present application relates to solar energy utilization, and in particular to a concentrated solar power generation system. 
     BACKGROUND 
     Currently, the development of economy and society brings higher requirements for energy, and there is an urgent need to find new energy. 
     Compared with thermal power, hydropower and nuclear power, solar energy is cleaner and safer, and the resource thereof is more sufficient. It has become the most important new energy in the 21st century. However, the solar power generation has poor generation efficiency, low utilization rate and high cost. 
     SUMMARY 
     In view of the problems in the prior art, the disclosure aims to provide a concentrated solar power generation system, which can utilize heat energy of solar radiation. 
     In order to achieve the above objective, the present disclosure adopts the following technical solutions. 
     Provided is a concentrated solar power generation system, comprising: 
     a movable platform having a groove; 
     a Fresnel lens located in the groove of the movable platform; 
     a header located below the Fresnel lens; 
     a plurality of heat collection tubes arranged in a circular array; 
     a reflector with a tapered surface; and 
     a support base; 
     wherein the header has a water circulation pipe, an inlet pipe and an outlet pipe; the inlet pipe and the outlet pipe each are communicated to the water circulation pipe; a lower end of each of the heat collection tubes is fixed on the support seat, and an upper end of each of the heat collection tubes is in contact with the water circulation pipe; the reflector is mounted on the support base and located in a space enclosed by the heat collection tubes; and a light passes through the Fresnel lens and irradiates the reflector. 
     In some embodiments, the concentrated solar power generation system further comprises: 
     a lens holder; and 
     a lens cover; 
     wherein the lens holder is placed in the groove of the movable platform and fixed on the movable platform; the lens holder is hollow and is provided with an annular groove; the Fresnel lens is placed in the annular groove of the lens holder; and the lens cover covers an edge of the Fresnel lens and the lens holder, and is fixed to the movable platform. 
     In some embodiments, the concentrated solar power generation system further comprises: 
     a lower fixing block fixed on the support base; and 
     an upper fixing block fixed to the lower fixing block; 
     wherein a tapered groove is formed by the upper fixing block and the lower fixing block, and a lower end of the reflector is inserted into the tapered groove. 
     In some embodiments, the header comprises: 
     a shell; 
     a header base; 
     an inner liner; 
     a thermal insulation layer; 
     an upper fixed seat; and 
     a lower fixed seat; 
     wherein the inner linear of the header comprises the water circulation pipe, the inlet pipe, the outlet pipe, and a plurality of heat conduction blocks which are integrally formed; the inlet pipe and the outlet pipe are symmetrically arranged and are exposed outside the shell; the inlet pipe and the outlet pipe each are communicated to an interior of the water circulation pipe; the water circulation pipe is ring-shaped, and the heat conduction blocks are arranged in a circular array; the heat conduction blocks penetrate through the water circulation pipe or extend into the interior of the water circulation pipe; a bottom of each of the heat conduction blocks has an insert hole, and an upper end of each of the heat collection tubes is inserted into the insert hole of respective heat conduction block; and 
     the upper fixed seat and the lower fixed seat are fixed together to form a through hole through which the water circulation pipe passes; the water circulation pipe passes through the upper fixed seat and the lower fixed seat; the lower fixed seat is fixed in the shell, and the thermal insulation layer fills an inside of the shell; the thermal insulation layer wraps the water circulation pipe, the upper fixed seat and the lower fixed seat; the shell has an annular cavity, and a bottom of the shell is fixed on the header base; and a bottom of the header base is provided with a plurality of openings through which the heat collection tubes pass. 
     In some embodiments, the concentrated solar power generation system further comprises: 
     a seat; and 
     a plurality of bearing rods spaced apart; 
     wherein the plurality of bearing rods comprises a first bearing rod, a second bearing rod and a third bearing rod; 
     wherein the seat is located below the support base, and the support base is fixed on the seat; one end of the third bearing rod is connected to the seat, and the other end of the third bearing rod is connected to the support seat; one end of the second bearing rod is connected to the support base, and the other end of the second bearing rod is connected to the header base; and one end of the first bearing rod is connected to the header base, and the other end of the first bearing rod is spherically hinged on the movable platform. 
     In some embodiments, the concentrated solar power generation system further comprises: 
     a lifting mechanism; 
     an upper end cover and a lower end cover which are fixed together; 
     an upper cage and a lower cage which are fixed together; and 
     a ball head; 
     wherein the ball head is fixed on an output end of the lifting mechanism, and is placed in a first spherical cavity formed by the upper cage and the lower cage; a plurality of steel balls are arranged in the upper cage and the lower cage; the upper cage and the lower cage are placed in a second spherical cavity formed by the upper end cover and the lower end cover; the steel balls are in contact with an inner wall of the second spherical cavity, and the ball head is in contact with an inner wall of the first spherical cavity; the ball head is in contact with the steel balls; and the upper end cover is fixed on the movable platform. 
     In some embodiments, the lifting mechanism is a ball screw, and the ball head is fixed on an output end of the ball screw; and a center of the Fresnel lens is provided with a rotary cleaning needle. 
     In some embodiments, the lifting mechanism is a hydraulic cylinder comprising: 
     a cylinder seat; 
     a cylinder tube fixed on the cylinder seat; 
     a piston rod arranged in the cylinder tube; 
     a cylinder cap fixed at an end of the cylinder tube; 
     a guide sleeve fixed in the cylinder tube; and 
     a piston fixed on the piston rod; 
     wherein a fluid inlet and a fluid outlet are provided on the cylinder tube, and the ball head is fixed at an end of the piston rod. 
     In some embodiments, the concentrated solar power generation system further comprises: 
     a magnetostrictive displacement sensor; 
     a movable magnetic ring; and 
     a connecting frame; 
     wherein one end of the magnetostrictive displacement sensor is fixed on the cylinder base, and the other end of the magnetostrictive displacement sensor is fixed on the cylinder cap; and one end of the connecting frame is fixed on the piston rod, and the other end of the connecting frame is connected to the movable magnetic ring. 
     In some embodiments, the concentrated solar power generation system further comprises: 
     a waste heat recovery device; and 
     a turbine generator; 
     wherein the outlet pipe is connected to the turbine generator; the waste heat recovery device has an input port and an output port; the turbine generator has a waste heat port; and the input port of the waste heat recovery device is communicated to the waste heat port of the turbine generator, and the output port of the waste heat recovery device is communicated to the inlet pipe. 
     The present invention has the following beneficial effects. 
     The concentrated solar power generation system of the present invention is able to utilize the thermal energy of sunlight to heat water. The water is heated to generate steam to produce electricity. The Fresnel lens is mounted in the groove of the movable platform by using the lens holder and the lens cover, and the light directly shines on the Fresnel lens. The upper fixing block and the lower fixing block can fix the conical reflector on the support base. The combination of the header, the heat collection tubes and the reflector can realize the utilization of sunlight. The movable platform bears the gravity of the header, the heat collection tubes, the support seat and the base through the bearing rods, and the lifting mechanism bears the gravity of the movable platform. The magnetostrictive displacement sensor cooperates with the movable magnetic ring to detect the displacement value of the piston rod. The cleaning needle can sweep dust or fallen leaves on the Fresnel lens, so as to avoid depositing of the dust or fallen leaves. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic diagram of a concentrated solar power generation system according to an embodiment of the present disclosure. 
         FIG. 2  is an enlarged view of area A in  FIG. 1 . 
         FIG. 3  is an enlarged view of area B in  FIG. 1 . 
         FIG. 4  is a perspective view of a header according to an embodiment of the present disclosure. 
         FIG. 5  is a schematic diagram of an internal structure of the header according to an embodiment of the present disclosure. 
         FIG. 6  is a partial schematic diagram of a water circulation pipe according to an embodiment of the present disclosure. 
         FIG. 7  is a schematic diagram of the water circulation pipe and a heat conduction block according to an embodiment of the present disclosure. 
         FIG. 8  is a schematic diagram of a structure formed by upper and lower end caps, upper and lower cages and a ball head according to an embodiment of the present disclosure. 
         FIG. 9  is a schematic diagram of a hydraulic cylinder according to an embodiment of the present disclosure. 
     
    
    
     In the drawings:  1 , movable platform;  2 , header;  3 , header base;  4 , heat collection tube;  5 , reflector;  6 , support base;  7 , seat;  8 , first bearing rod;  9 , second bearing rod;  10 , third bearing rod;  11 , hydraulic cylinder;  12 , fixed platform;  13 , automatic tracking sensor;  14 , Fresnel lens;  15 , lens cover;  16 , lens holder;  17 , first hollow area;  18 , third hollow area;  19 , lower fixing block;  20 , upper fixing block;  21 , water circulation pipe;  22 , inlet pipe;  23 , outlet pipe;  24 , upper fixed seat;  25 , lower fixed seat;  26 , second hollow area;  27 , heat conduction block;  28 , insert hole;  29 , upper end cover;  30 , lower end cover;  31 , upper cage;  32 , lower cage;  33 , steel ball;  34 , ball head;  35 , piston rod;  36 , cylinder seat;  37 , cylinder tube;  38 , cylinder cap;  39 , guide sleeve;  40 , piston;  41 , magnetostrictive displacement sensor;  42 , movable magnetic ring;  43 , connecting frame 
     DETAILED DESCRIPTION OF EMBODIMENTS 
     The present disclosure will be further described in detail below in conjunction with the drawings and embodiments. 
     As shown in  FIG. 1 , illustrated is a concentrated solar power generation system, including a movable platform  1  which is hollow and has a groove, a Fresnel lens  14  located in the groove of the movable platform  1 , a header  2  located below the Fresnel lens  14 , a plurality of heat collection tubes  4  arranged in a circular array, a reflector  5  with a tapered surface, and a support base  6 . A center of the movable platform  1  has a first hollow area  17 , that is, a through hole is provided in the movable platform  1 , and the groove which is annular is provided at an edge of the first hollow area  17 . The Fresnel lens is placed in the groove through other parts (mentioned below). The header is located directly below the Fresnel lens. The header  2  is also hollow and has a second hollow area  26 . The header  2  has a water circulation pipe  21 , an inlet pipe  22  and an outlet pipe  23 . The inlet pipe  22  and the outlet pipe  23  each are communicated to an interior of the water circulation pipe  21 . A lower end of each of the heat collection tubes  4  is fixed on the support seat  6 , and an upper end of each of the heat collection tubes  4  is in contact with the water circulation pipe  21 . The header  2 , the heat collection tubes  4 , and the support base  6  are arranged from top to bottom in sequence. The reflector  5  is mounted on the support base  6 , and the heat collection tubes  4  are vertically and evenly arranged along a circumferential direction, that is, in a circular array. The reflector  5  is located in a space enclosed by the heat collection tubes  4 , that is, the heat collection tubes  4  are distributed around the reflector  5 . The reflector  5  is a uniform reflector and has a conical shape. A light passes through the Fresnel lens  14  and then shines on the reflector  5 , that is, the light first shines on the Fresnel lens  14 , and then passes through the second hollow area of the header  2  and then shines on the reflector  5 . The heat collection tubes  4  are existing vacuum collection tubes of the heat pipe type, which can absorb the energy of sunlight and generate heat energy. 
     As shown in  FIGS. 1-2 , the concentrated solar power generation system also includes a lens holder  16  and a lens cover  15 . The lens holder  16  has a third hollow area  18 , and is ring-shaped. The lens holder  16  is placed in the groove of the movable platform  1  and fixed on the movable platform  1 . The lens holder  16  is provided with an annular groove, and the Fresnel lens  14  is placed in the annular groove of the lens holder  16 . The lens cover  15  is also hollow and ring-shaped, the lens cover  15  covers an edge of the Fresnel lens  14  and the lens holder  16 , and the lens cover  15  is fixed to the movable platform  1 . The lens holder  16  and the lens cover  15  may be fixed on the movable platform  1  through bolts, and the lens holder  16  and the lens cover  15  are adopted to mount the Fresnel lens  14  in the groove of the movable platform  1 , so that the sunlight directly shines on the Fresnel lens  14 . 
     As shown in  FIGS. 1 and 3 , the concentrated solar power generation system further includes a lower fixing block  19  fixed on the support base  6 , and an upper fixing block  20  fixed to the lower fixing block  19 . The lower fixing block  19  can be fixed on the support base  6  by bolts, and the upper fixing block  20  and the lower fixing block  19  are fixed together by bolts. A tapered groove is formed by the upper fixing block  20  and the lower fixing block  19 , and a lower end of the reflector  5  is inserted into the tapered groove. In this way, the reflector  5  which is tapered can be fixed on the support base  6 . 
     As shown in  FIGS. 1 and 4-7 , the header  2  includes a shell, a header base  3 , an inner liner, a thermal insulation layer, an upper fixed seat  24  and a lower fixed seat  25 . The water circulation pipe, the inlet pipe and the outlet pipe mentioned above are parts of the inner liner of the header  2 . The inner linear of the header  2  includes the water circulation pipe  21 , the inlet pipe  22 , the outlet pipe  23 , and a plurality of heat conduction blocks  27  which are integrally formed. The inlet pipe  22  and the outlet pipe  23  are symmetrically arranged, and a connecting line of the inlet pipe  22  and the outlet pipe  23  passes through a center of the water circulation pipe  21 . The water circulation pipe  21  is horizontally arranged, and the inlet pipe  22  and the outlet pipe  23  are vertically arranged. The inlet pipe  22  and the outlet pipe  23  are exposed outside the shell and are communicated to an interior of the water circulation pipe  21 . As shown in  FIG. 5 , the water circulation pipe  21  is ring-shaped, and the heat conduction blocks are arranged in a circular array, that is, the heat conduction blocks  27  are evenly distributed on the water circulation pipe  21  along a circumference of the water circulation pipe  21 . The heat conduction blocks  27  and the water circulation pipe  21  are integrally formed, and the heat conduction blocks  27  penetrate through the water circulation pipe  21  or extend into the interior of the water circulation pipe  21 . 
     As shown in  FIGS. 6-7 , a bottom of each of the heat conduction blocks  27  has an insert hole  28 , and an upper end of each of the heat collection tubes  4  is inserted into the insert hole  28  of respective heat conduction block  27 . The upper fixed seat  24  and the lower fixed seat  25  are fixed together to form a through hole through which the water circulation pipe  21  passes. The water circulation pipe  21  passes through the upper fixed seat  24  and the lower fixed seat  25  from the through hole. The lower fixed seat  25  is fixed in the shell, and the thermal insulation layer fills an inside of the shell, and the thermal insulation layer wraps the water circulation pipe  21 , the upper fixed seat  24  and the lower fixed seat  25 . The hollow shell has an annular cavity, and the inner linear of the header  2  and the thermal insulation layer are located in the annular cavity. A bottom of the shell is fixed on the header base  3 . The header base  3  is also hollow and ring-shaped, and the arrangement of the header base  3  can prevent the shell from rotating. A bottom of the header base  3  is provided with a plurality of openings through which the heat collection tubes pass, and an upper end of each of the heat collection tube  4  passes through respective opening on the header base  3  and the shell in turn, and finally is inserted into the insert hole  28  of respective heat conduction block  27 . 
     As shown in  FIG. 1 , the concentrated solar power generation system further includes a seat  7  and a plurality of bearing rods spaced apart. The plurality of bearing rods comprises a first bearing rod  8 , a second bearing rod  9  and a third bearing rod  10 . The first bearing rod  8 , the second bearing rod  9  and the third bearing rod  10  are integrally or not integrally formed, that is, the first bearing rod  8 , the second bearing rod  9 , and the third bearing rod  10  may be integrally formed, or may be separate components. The seat  7  is located below the support base  6 , and the support base  6  is fixed on the seat  7 . One end of the third bearing rod  10  is connected to the seat  7 , and the other end of the third bearing rod  10  is connected to the support seat  6 . One end of the second bearing rod  9  is connected to the support base  6 , and the other end of the second bearing rod  9  is connected to the header base  3 . One end of the first bearing rod  8  is connected to the header base  3 , and the other end of the first bearing rod  8  is spherically hinged on the movable platform  1 . If the first bearing rod  8 , the second bearing rod  9 , and the third bearing rod  10  are integrally formed, the structure formed by the first bearing rod  8 , the second bearing rod  9 , and the third bearing rod  10  passes through the support base  6  and the header base  3  in sequence. The movable platform  1  bears the gravity of the header  2 , the heat collection tubes  4 , the support base  6  and the seat  7  through the bearing rods. In addition, the end of the first bearing rod  8  (an upper end of the bearing rod) is spherically hinged on the movable platform  1 , that is, the first bearing rod can rotate within a certain range with respect to the movable platform  1 . 
     As shown in  FIGS. 1 and 8 , the concentrated solar power generation system further includes a lifting mechanism, an upper end cover  29  and a lower end cover  30  which are fixed together, an upper cage  31  and a lower cage  32  which are fixed together, and a ball head  34 . The ball head  34  is fixed on an output end of the lifting mechanism. The upper cage  31  and the lower cage  32  form a first spherical cavity, and the ball head  34  is placed in the first spherical cavity formed by the upper cage  31  and the lower cage  32 . A plurality of steel balls  33  are arranged in the upper cage  31  and the lower cage  32 , and the steel balls of the upper cage  31  and the lower cage  32  are partially exposed. The upper cage  31  and the lower cage  32  are placed in a second spherical cavity formed by the upper end cover  29  and the lower end cover  30 . The steel balls  33  are in contact with an inner wall of the second spherical cavity, and the ball head  34  is in contact with an inner wall of the first spherical cavity, and the ball head  34  is in contact with the steel balls  33 . The upper end cover  29  is fixed on the movable platform  1 . There are three lifting mechanisms which are evenly distributed along the circumferential direction. The lifting mechanisms are configured to lift the movable platform  1 , and adjust an inclination angle of the movable platform  1 . When the three lifting mechanisms have different heights, the ball heads corresponding to the three lifting mechanisms are located at different heights, which causes the upper end cover  29  and the lower end cover  30  to rotate within a certain range with respect to the cages (the upper cage  31  and the lower cage  32 ), so as to adjust the inclination of the movable platform  1 . 
     In some embodiments, the lifting mechanism is a ball screw, and the ball head  34  is fixed on an output end of the ball screw. Through the ball screw, the movable platform  1  can move up and down, and the inclination can be adjusted. 
     In some embodiments, as shown in  FIGS. 1 and 9 , the lifting mechanisms are hydraulic cylinders  11 . The hydraulic cylinder  11  includes a cylinder seat  36 , a cylinder tube  37  fixed on the cylinder seat  36 , a piston rod  35  arranged in the cylinder tube  37 , a cylinder cap  38  fixed at an end (an upper end) of the cylinder tube  37 , a guide sleeve  39  fixed in the cylinder tube  37 , a piston  40  fixed on the piston rod  35 . The concentrated solar power generation system further includes a fixed platform  12 . The fixed platform  12  is located at the bottom, and the cylinder base  36  is rotatably mounted on the fixed platform  12 , and the hydraulic cylinder  11  can also be kept upright. The piston rod  35  is located in the cylinder tube  37  and passes through the cylinder cup  38 . The guide sleeve  39  is configured to guide the movement of the piston rod  35 . The piston  40  is arranged on the piston rod  35 , and the piston  40  and the piston rod  35  are fixed. A fluid inlet and a fluid outlet are provided on the cylinder tube  37 , and the ball head  34  is fixed at an end of the piston rod  35 . The fluid inlet may be an oil inlet or an air inlet, and the fluid outlet may be an oil outlet or an air outlet. In this way, the piston rod  35  can drive the ball head  34  to move up and down, thereby realizing the vertical movement of the movable platform  1  and the adjustment for inclination. The lifting mechanism bears the gravity of the movable platform  1 . 
     As shown in  FIGS. 1 and 9 , the concentrated solar power generation system further includes a magnetostrictive displacement sensor  41 , a movable magnetic ring  42 , and a connecting frame  43 . The magnetostrictive displacement sensor  41  and the movable magnetic ring  42  belongs to the prior art. One end of the magnetostrictive displacement sensor  41  is fixed on the cylinder base  36 , and the other end of the magnetostrictive displacement sensor  41  is fixed on the cylinder cap  38 . The magnetostrictive displacement sensor  41  is fixed. One end of the connecting frame  43  is fixed on the piston rod  35 , and the other end of the connecting frame  43  is connected to the movable magnetic ring  42 . When the piston rod  35  moves up and down, the movable magnetic ring  42  is driven to move up and down through the connecting frame  43 . The magnetostrictive displacement sensor  41  cooperates with the movable magnetic ring  42  to detect the displacement value of the piston rod  35 . 
     A center of the Fresnel lens is provided with a rotary cleaning needle (not shown). After the concentrated solar power generation system is used a period of time, dust or fallen leaves will be inevitably deposited on the Fresnel lens, which will affect the light passing through the Fresnel lens. 
     In order to realize the power generation, the concentrated solar power generation system further includes a turbine generator. The outlet pipe is connected to the turbine generator, so that the steam from the outlet pipe enters the turbine generator. 
     The working principles of the concentrated solar power generation system are described as follows. The height and the inclination of the movable platform  1  are adjusted through the lifting mechanisms, so that the Fresnel lens  14  is perpendicular to the sunlight all the time. After passing through the Fresnel lens  14 , the sunlight is focused on the reflector  5 , and then reflected to the heat collection tubes  4  through the reflection of the reflector  5 . Then, the heat collection tubes  4  absorb the energy of the light to generate heat energy, and the heat energy is conducted into the heat conduction blocks  27 . The heat conduction blocks  27  heat the water in the water circulation pipe  21 . When the water in the water circulation pipe  21  is heated to a certain temperature, the water is vaporized to form steam, and the steam enters the external turbine generator to push the turbine generator to rotate at a high speed, thereby driving the concentrated solar power generation system to generate electricity. A valve in the inlet pipe  22  is opened, and water can be added to the water circulation pipe  21 . 
     The concentrated solar power generation system further includes a waste heat recovery device having at least one input port and at least one output port. The turbine generator has a waste heat port. The input port of the waste heat recovery device is communicated to the waste heat port of the turbine generator, and the output port of the waste heat recovery device is communicated to the inlet pipe  22 . After the steam enters the turbine generator, waste hot water is produced, and the waste hot water flows through the waste heat recovery device. After the waste heat recovery device recovers the waste hot water, the waste hot water flows out from the output port of the waste heat recovery device, and then enters the inlet pipe  22 . The waste hot water flows into the water circulation pipe  21  through the inlet pipe  22 . Since the waste hot water has a certain temperature, the production of water steam is accelerated. The waste heat recovery device recovers the steam that drives the turbine generator to rotate at a high speed to generate medium temperature water (waste hot water), and then sends this medium temperature water to the header  2 . Through the water circulation pipe  21 , the steam generation process of the concentrated solar power generation system is accelerated, so that the waste heat of the turbine generator is circularly utilized, thus improving the efficiency of the concentrated solar power generation system. 
     A principle of a control system involved in the concentrated solar power generation system is known in the prior art. One control principle is to mount an automatic tracking sensor  13  on the movable platform  1 . The automatic tracking sensor  13  senses whether the sun&#39;s rays are perpendicular to a plane of the Fresnel lens  5 . When the sun&#39;s rays are not perpendicular to the plane of the Fresnel lens  5 , the automatic tracking sensor  13  will output a deviation signal, and then the signal is amplified and sent to the controller. The controller controls the hydraulic cylinder  11  to work to adjust the height and the inclination of the movable platform  1 , so that the sun&#39;s rays are perpendicular to the plane of the Fresnel lens  5 . 
     The control principle of the hydraulic cylinder  11  is described as follows. When receiving the signal, the controller performs the inverse solution for the movable platform to solve the elongation required by each hydraulic cylinder by transforming the model of the space motion, and then the command signal is converted into an analog quantity for the hydraulic cylinder  11 . At the same time, the extension length of the piston rod  35  of the hydraulic cylinder  11  can be measured by the magnetostrictive displacement sensor  41 , and fed back to the controller for comparison. The controller controls and adjusts the position of the piston rod  35  of each hydraulic cylinder  11 , so as to complete required actions through the cooperation of the hydraulic cylinders  11 . The above-mentioned control principle is not intended to limit the scope of the present disclosure, and other control principles in the prior art may be adopted to realize the automatic control. 
     The above are only the preferred embodiments of the present disclosure, and are not intended to limit the scope of the present disclosure. Any changes, equivalent modifications and improvements made by those skilled in the art without departing from the spirit of the present disclosure shall fall within the scope of the present disclosure.