CN106680964B - A kind of tower heliostat assembly tooling and assembly method - Google Patents

Abstract

The invention provides a tower-type heliostat assembly tooling, which includes a tooling base platform, a driving base, a positioning frame and an adjustment frame; the driving base is fixed on the tooling base platform, and the positioning frame is arranged on the heliostat. The support arm is below and used to adjust the horizontal state of the heliostat support plate; the rectangular array of the adjustment frames is distributed on the tooling basic platform, and at least one adjustment top screw with adjustable top height is provided on the top of the adjustment frame. The invention also provides a tower heliostat assembly method. This invention is the first heliostat component installation tool in China, which can realize large-scale modular assembly, and can realize the assembly of heliostat components with different focal lengths, different positions, and different sizes; at the same time, the installation accuracy is uniform and reliable, and the installation method and process are simple and convenient. ,save time and energy. In addition, the tooling assembly itself is quick to disassemble, easy to transport, has a simple structure, and occupies a small area; the assembly and installation method is fast, reliable, high-precision, and has broad application prospects.

Description

A kind of tower heliostat assembly tooling and assembly method

Technical field

The invention belongs to the field of solar thermal power generation, and in particular relates to a tower heliostat assembly tool and an assembly method.

Background technique

Tower-type solar thermal power generation uses a large number of heliostats to focus sunlight on a heat absorber on a receiving tower to heat the working fluid, generate high-temperature and high-pressure steam, and drive a steam turbine to generate electricity. Heliostats are an important part of tower solar power stations and are mainly composed of plane mirrors, steel structures, driving devices and their control systems. Generally speaking, the number of heliostats in a tower solar power station is tens of thousands, so how to assemble heliostats in large quantities, quickly and with high precision is crucial. In addition, since the heliostats designed by each heliostat manufacturer are of different sizes and focal lengths, there is an urgent need to develop a flexible assembly tooling and assembly method for heliostats that can be adapted to different sizes and focal lengths.

Contents of the invention

In order to overcome the shortcomings of the existing technology, the present invention provides a tower heliostat assembly tool and an assembly method. The assembly tool has a simple structure, convenient installation, reliable accuracy, and can be adapted to tower heliostats of different sizes and different focal lengths. Mirror assembly.

The technical solutions adopted by the present invention to solve the technical problems are:

The invention first provides a tower-type heliostat assembly tooling, which includes a tooling base platform, a driving base, a positioning frame and an adjustment frame; the driving base is fixed on the tooling base platform, and the positioning frame is arranged on the heliostat. Below the support arm, it is used to adjust the horizontal state of the heliostat support plate; the rectangular array of the adjustment frames is distributed on the tool base platform, and at least one adjustment top screw with adjustable top height is provided on the top of the adjustment frame.

As a further preferred embodiment, the positioning frame is a straight rod frame, the bottom end of which is fixed on the tool base platform, and the top end is provided with an adjustment bolt that resists the heliostat support frame.

As a further preferred embodiment, the bottom of the adjustment frame is provided with an adjustment frame base connected thereto.

As a further preferred embodiment, the adjustment frame and the base of the adjustment frame are connected through several screw rods.

As a further preferred embodiment, the position of the adjustment frame relative to the base of the adjustment frame is adjustable forward, backward, left, and right.

As a further preferred embodiment, the adjustment frame includes a first adjustment plate, a second adjustment plate, a third adjustment plate and a stand arranged in sequence from bottom to top. The first adjustment plate is connected to the base of the adjustment frame; the second adjustment plate The board is provided with a first waist-shaped hole for connecting to the first adjustment plate, and the third adjustment plate is provided with a second waist-shaped hole for connecting to the second adjustment plate. The first waist-shaped hole and the second waist-shaped hole They are arranged perpendicularly at 90 degrees to each other; the stand is fixedly connected to the third adjustment plate.

As a further preferred embodiment, the adjustment frame includes a first adjustment frame and a second adjustment frame; the top of the stand is provided with a horizontal bracket distributed in a "one" shape, and one of the adjustment tops is provided at both ends of the horizontal bracket. wire to form the first adjustment frame with two-point adjustment; the top of the stand is provided with a horizontal bracket distributed in the shape of a "cross", a fixed plate is set above the horizontal bracket, and one of the four corners of the fixed plate is respectively set Adjust the top screw to form the second adjustment frame with four-point adjustment.

As a further preferred embodiment, the first adjustment racks are distributed at the edges of the rectangular array, and the second adjustment racks are distributed within the edges of the rectangular array.

As a further preferred embodiment, the driving base includes a lower flange, a column and an upper flange connected in sequence from bottom to top.

The invention also provides a tower heliostat assembly method, which is assembled using the above-mentioned assembly tooling, specifically including the following steps:

S1: First install the driving base and positioning frame, and determine the number and position of the adjusting frame base according to the structural form and scale of the heliostat;

S2: Install the adjustment frame, and determine the precise position of each adjustment screw on the adjustment frame according to the focal length of the heliostat and the inclination angle of the plane mirror at different positions;

S3: Install the driving device of the heliostat on the driving base, then install the torque beam and support arm, accurately locate the horizontal position of the support arm through the positioning frame, and then install the plane mirror beam;

S4: Place the plane mirror on the four adjustment support points formed by its corresponding four adjustment top screws, ensure that the plane mirror and the four adjustment support points are in contact, and then fix the plane mirror to the plane mirror beam through bolts; follow Fix each plane mirror in sequence from the inside to the outside until the heliostat is assembled.

Positive effects of the present invention: The tower-type heliostat assembly tooling of the present invention is the first domestic heliostat component installation tooling, which can realize large-scale modular assembly; through fine-tuning of the flexible tooling, different focal lengths and different positions can be achieved. Assembling heliostat components of different sizes; at the same time, it can be combined with high-precision optical inspection equipment to ensure the precise positioning of each component during the assembly process of the heliostat, meeting the accuracy requirements of the heliostat in the mirror field; at the same time, it avoids the problem of different technologies. The assembly errors caused by the work of skilled workers are uniform and reliable; the installation method and process are simple and convenient, saving time and effort. In addition, the tower heliostat assembly tooling is quick to assemble and disassemble, and is easy to transport; the tower heliostat assembly tooling has a simple structure and a small footprint; it can install the driving device, torque beam, support arm, plane mirror beam, plane mirror and other components at the same time. The method is fast, reliable and highly precise.

Description of the drawings

Figure 1 is a schematic structural diagram of the heliostat assembly tooling;

Figure 2 is a schematic structural diagram of a tower heliostat;

Figure 3 is a schematic diagram of the installation structure of the positioning frame;

Figure 4 is an enlarged structural diagram of area A in Figure 3;

Figure 5 is a schematic structural diagram of the driving base;

Figure 6 is a schematic structural diagram of the first adjustment frame;

Figure 7 is a schematic structural diagram of the second adjustment frame;

Figure 8 is a schematic diagram of the layout of the adjustment frame.

Detailed ways

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

Referring to Figure 1, a preferred embodiment of the present invention provides a tower heliostat assembly tooling, which includes a tooling base platform 1, a driving base 2, a positioning frame 3 and an adjustment frame; the driving base 2 is fixed to the tooling base platform 1 On the top, the positioning frame 3 is arranged below the heliostat support arm 10 and is used to adjust the horizontal state of the heliostat support arm 10; the rectangular array of the adjustment frames is distributed on the tooling basic platform, and at least one top end is provided on the top of the adjustment frame Height-adjustable top screw.

The above tower heliostat assembly tool is used to assemble the tower heliostat. As shown in Figure 2, the tower heliostat mainly consists of a column 7, a driving device 8, a torque beam 9, a support arm 10, a plane mirror beam 11 and a plane mirror. Composed of 12 other parts.

The tooling basic platform 1 is generally made of cement. Depending on the specific structure and scale of the heliostat tooling, different numbers of chemical anchors or expansion bolts can be installed, or it can be made of steel structure or other forms. The size of the tooling basic platform 1 matches the size of the heliostat.

As shown in Figures 3 and 4, the positioning frame 3 is a straight rod frame, the bottom end of which is fixed on the tool base platform 1, and the top end is provided with an adjustment bolt that resists the heliostat support arm to adjust the two supports. The arm is horizontal.

As shown in Figure 5, the driving base 2 is the positioning basis of the entire tooling and is used to fix and connect the driving device 8. It is mainly composed of lower flange 2.1, column 2.2, and upper flange 2.3. The lower flange 2.1 is used to be fixed with the tooling basic platform 1; the upper flange 2.3 is designed as an interface matching the driving device 8 and is used to connect the driving device 8. The upper flange 2.3 of the drive base 2 can be changed according to the interface of different drive devices 8.

The bottom of the adjustment frame is provided with an adjustment frame base 4 connected thereto. The number of the adjustment frame bases 4 is determined according to the size of the heliostat and the number of plane mirrors 12 . The adjusting frame base 4 itself can also be configured to be retractable.

As shown in Figures 6 and 7, the adjustment frame and the adjustment frame base 4 are connected through a number of screws 5.1. The adjustment frame includes a first adjustment plate 5.2, a second adjustment plate 5.3, a third adjustment plate 5.4 and a stand 5.5 arranged in sequence from bottom to top; the first adjustment plate 5.2 is connected to the screw 5.1, that is, the lower end of the screw 5.1 The adjusting frame base 4 is connected, and the upper end is connected to the first adjusting plate 5.2 to adjust the vertical height of the first adjusting frame 5; the second adjusting plate 5.3 is provided with a first waist-shaped hole for connecting to the first adjusting plate 5.2. The third adjustment plate 5.4 is provided with a second waist-shaped hole for connecting with the second adjustment plate 5.3. The first waist-shaped hole and the second waist-shaped hole are arranged perpendicularly at 90 degrees to each other, so that two-dimensional position adjustment in space can be realized (i.e. The position of the adjusting frame relative to the base of the adjusting frame is adjustable front, rear, left and right); the stand 5.5 is fixedly connected to the third adjusting plate 5.4.

The number of adjustment points on the adjustment frame can be arbitrarily designed according to the actual situation. Preferably, the adjustment frame includes a first adjustment frame 5 and a second adjustment frame 6 (as shown in Figures 1 and 8); the top end of the vertical frame 5.5 There are horizontal brackets 5.7 distributed in the shape of "one", and one of the adjusting top screws 5.6 is provided at both ends of the horizontal bracket to form the first adjusting frame with two-point adjustment (as shown in Figure 5); The top of the frame is provided with horizontal brackets distributed in the shape of a "cross". A fixed plate 5.8 is arranged above the horizontal bracket. One of the adjusting top screws 5.6 is respectively installed at the four corners of the fixed plate 5.8 to form the second adjustment with four-point adjustment. rack (as shown in Figure 6).

The stand 5.5 is designed with a pin hole, which is used to install a detection device to detect the spatial position of the first adjustment frame 5; the end of the adjustment jackscrew 5.6 is also designed with a pin hole, which can be used to install the test target and accurately adjust the jackscrew. 5.6 position.

The number of adjustment points on the adjustment rack can be designed arbitrarily. For example, it can all be designed with four adjustment points. However, at this time, the adjustment points on the four-point adjustment rack placed at the edge will be idle, so the actual layout can be Determine the structure of the adjustment frame and the number of adjustment points. Preferably, as shown in Figure 8, the first adjustment racks are distributed at the edge of the rectangular array, and the second adjustment racks are distributed within the edges of the rectangular array. Of course, an adjustment rack with one point of adjustment can also be designed and the It is placed at the four corners.

Heliostats at different positions from the receiving tower in a mirror field have different reflection focal lengths, so a mirror field needs to be composed of heliostats with different focal lengths. Generally, a heliostat is composed of multiple plane mirrors 12, and each plane mirror 12 is arranged at a different position, so the adjustment angle of each plane mirror 12 is also different. Therefore, the first adjustment bracket 5 and the second adjustment bracket 6 described in this embodiment can be used to adjust the tilt angle of the plane mirror 12 with different focal lengths and different positions.

Each plane mirror 12 is adjusted through four-point support positioning (the four-point support positioning is composed of four adjustment frames providing one adjustment point respectively, and the adjustment points on the adjustment frame are respectively used to correspond to different plane mirrors), that is, Accurately position the tilt angle of each plane mirror 12. By adjusting the top height of the top screw 5.6, the tower heliostat assembly tool can realize the adjustment and installation of the plane mirror 12 with different focal lengths and different tilt angles.

This embodiment also provides a tower heliostat assembly method, which is assembled using the above-mentioned assembly tooling, specifically including the following steps:

S1: First install the driving base and positioning frame, and determine the number and position of the adjusting frame base according to the structural form and scale of the heliostat;

S2: Install the adjusting frame, and determine the precise position of each adjusting screw on the adjusting frame according to the focal length of the heliostat and the inclination angle of the plane mirror at different positions, and use a laser detector to accurately adjust the position of each adjusting screw;

S3: Install the driving device of the heliostat on the driving base, then install the torque beam and support arm, accurately locate the horizontal position of the support arm through the positioning frame, and then install the plane mirror beam;

S4: Place the plane mirror on the four adjustment support points formed by its corresponding four adjustment top screws, ensure that the plane mirror and the four adjustment support points are in contact, and then fix the plane mirror to the plane mirror beam through bolts; follow Fix each plane mirror in sequence from the inside to the outside until the heliostat is assembled. The heliostat can be lifted off as a whole using a special lifting device.

The tower-type heliostat assembly tooling described in the present invention is the first heliostat component installation tooling in China, which can realize large-scale modular assembly; through fine-tuning of the flexible tooling, heliostats with different focal lengths, different positions, and different sizes can be realized. Assembly of mirror components; at the same time, combined with high-precision optical inspection equipment, to ensure the precise positioning of each component during the assembly process of the heliostat and meet the accuracy requirements of the heliostat in the mirror field; at the same time, it avoids assembly errors caused by workers with different technical levels. The error and installation accuracy are uniform and reliable; the installation method and process are simple and convenient, saving time and effort; in addition, the tower heliostat assembly tooling is quick to assemble and disassemble, and easy to transport; the tower heliostat assembly tooling has a simple structure and a small footprint; it can be used simultaneously Install the driving device, torque beam, support arm, plane mirror beam, plane mirror and other components with fast, reliable and high-precision installation.

The above are only preferred embodiments of the present invention. It should be understood that the description of the above embodiments is only used to help understand the method of the present invention and its core ideas, and is not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, etc. made within the ideas and principles of the present invention shall be included in the protection scope of the present invention.

Claims (6)

1. A tower heliostat assembly tooling, including a tooling basic platform. The tower heliostat is mainly composed of a column, a driving device, a torque beam, a support arm, a plane mirror beam and a plane mirror. It is characterized in that: it also includes a drive Base, positioning frame and adjustment frame; the driving base is fixed on the tooling basic platform and is used to fix and connect the driving device. The positioning frame is arranged below the heliostat support arm and is used to adjust the horizontal state of the heliostat support arm. ; The rectangular array of the adjustment racks is distributed on the tooling basic platform, the top of the adjustment rack is provided with at least one adjustment screw with an adjustable top height, and the bottom of the adjustment rack is provided with an adjustment rack base connected thereto; The adjustment frame includes a first adjustment plate, a second adjustment plate, a third adjustment plate and a stand arranged in sequence from bottom to top. The first adjustment plate is connected to the base of the adjustment frame; the second adjustment plate is provided with a A first waist-shaped hole connected to the first adjustment plate, and a second waist-shaped hole connected to the second adjustment plate on the third adjustment plate. The first waist-shaped hole and the second waist-shaped hole are 90 degrees perpendicular to each other. Arrangement; the stand is fixedly connected to the third adjustment plate; The adjusting frame includes a first adjusting frame and a second adjusting frame; the top of the standing frame is provided with a horizontal bracket distributed in a "one" shape, and one of the adjusting jackscrews is provided at both ends of the horizontal bracket to form a two-point adjustment The first adjusting frame; the top of the standing frame is provided with a horizontal bracket distributed in the shape of a "cross", a fixed plate is arranged above the horizontal bracket, and one of the adjusting jackscrews is respectively arranged at the four corners of the fixed plate, forming a structure with four The second adjustment frame is point-adjustable; The positioning frame is a straight rod frame, the bottom end of which is fixed on the tooling foundation platform, and the top end is provided with an adjustment bolt that resists the heliostat support arm. 2. A tower-type heliostat assembly tool according to claim 1, characterized in that: the adjustment frame and the adjustment frame base are connected through a plurality of screws. 3. A tower-type heliostat assembly tool according to claim 2, characterized in that: the position of the adjustment frame relative to the base of the adjustment frame is adjustable in the front, rear, left and right. 4. A tower heliostat assembly tool according to claim 1, characterized in that: the first adjustment frame is distributed at the edge of the rectangular array, and the second adjustment frame is distributed within the edge of the rectangular array. . 5. A tower-type heliostat assembly tool according to claim 1, characterized in that the driving base includes a lower flange, a column and an upper flange connected in sequence from bottom to top. 6. A method for assembling a tower heliostat, which is assembled using the assembly tooling of claim 1, characterized in that it specifically includes the following steps: S1: First install the driving base and positioning frame, and determine the number and position of the adjusting frame base according to the structural form and scale of the heliostat; S2: Install the adjustment frame, and determine the precise position of each adjustment screw on the adjustment frame according to the focal length of the heliostat and the inclination angle of the plane mirror at different positions; S3: Install the driving device of the heliostat on the driving base, then install the torque beam and support arm, accurately locate the horizontal position of the support arm through the positioning frame, and then install the plane mirror beam; S4: Place the plane mirror on the four adjustment support points formed by its corresponding four adjustment top screws, ensure that the plane mirror and the four adjustment support points are in contact, and then fix the plane mirror to the plane mirror beam through bolts; follow Fix each plane mirror in sequence from the inside to the outside until the heliostat is assembled.