WO2022237021A1 - Device and method for quickly penetrating linear fresnel ultra-long distance heat collection vacuum tube - Google Patents

Abstract

Provided are a device and a method for quickly penetrating a linear Fresnel ultra-long distance heat collection vacuum tube, the device comprising a suspended fixed track (6) and a support frame (9) which is connected to the fixed track (6) in a sliding or rolling manner, wherein the support frame (9) is used for supporting a heat collection vacuum tube (7); one end of the fixed track (6) is also connected to a temporary track (2), and the heat collection vacuum tube (7) is inserted into a penetrating support (8); and the support frame (9) is connected to a flexible cable, and the flexible cable can pull the penetrating support (8) to move on the temporary track (2) and the fixed track (6).

Description

A linear Fresnel ultra-long-distance heat-collecting vacuum tube quick-fitting device and method technical field

The invention belongs to the field of construction, and in particular relates to a fast-fitting device and method for a linear Fresnel ultra-long-distance heat-collecting vacuum tube.

Background technique

The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. The collector vacuum tube of the linear Fresnel photothermal unit is a molten salt pipeline heated by the primary and secondary mirrors. It is composed of a 347H stainless steel steel pipe wrapped with a glass vacuum tube. It is installed at the lower part of the secondary mirror and focused through the primary and secondary mirrors. Sunlight heats the molten salt inside the pipes. Each heat collection vacuum tube is composed of a single heat collection tube with a length of three meters. Each heat collection line is usually more than two kilometers long. Therefore, in the installation of heat collection tubes, dressing is the most critical step. process. A good fitting process can not only ensure the safety of the installation of the heat collecting tube, but also greatly improve the efficiency of the installation and shorten the installation period.

technical problem

In the prior art, the installation of the heat collecting tubes is combined with the secondary mirror in sections. After the assembly on the ground, the cranes are used to hoist the tubes in sections, and after the installation is completed, welding and testing of each section of the nozzle are carried out. At present, the existing methods for vacuum tube installation mainly have the following disadvantages:

1) The vacuum tube and the secondary mirror need to be transported to the site for segmented and dispersed assembly, which increases the chance of damage to the vacuum tube;

2) Welding joints are relatively scattered, and all of them are high-altitude operations, which increases the difficulty of welding and inspection;

3) A large number of hoisting machinery is used, and the construction cost is high; 4) The personnel and machinery are frequently transferred, and the construction efficiency is low.

technical solution

Aiming at the deficiencies in the prior art, the object of the present invention is to provide a linear Fresnel ultra-long-distance heat-collecting vacuum tube fast threading device and method, which adopts assembly line operation, greatly reduces the use of mobile cranes, and reduces the cost of materials. Bad luck and movement of people, improving safety. In order to achieve the above object, the present invention is achieved through the following technical solutions: In the first aspect, the technical solution of the present invention provides a linear Fresnel ultra-long-distance heat collection vacuum tube fast installation device, including a suspended fixed track And a support frame that slides or rolls to connect the fixed track, and the support frame is used to support the heat collecting vacuum tube; one end of the fixed track is also connected with a temporary track, and the heat collecting vacuum tube is plugged in for wearing the support; the support frame is connected to the flexible cable, and the flexible cable It can tow the wearing bracket to move on the temporary track and the fixed track.

In the second aspect, the technical solution of the present invention also provides a method for quickly installing a linear Fresnel ultra-long-distance heat-collecting vacuum tube, using a linear Fresnel ultra-long-distance heat-collecting vacuum tube as described in the first aspect Wearing device, comprises the steps:

Hoist the vacuum heat collecting tubes to the temporary mounting platform and place them on the fixed track; push the vacuum heat collecting tubes forward to the welding windbreak shelter for automatic welding and welding operations; after the welding is completed, conduct phased array inspection, and pull and fix the welding joints after passing the welding The device is set at the end of the vacuum tube;

Pull the flexible cable, extend the wire rope through the two fixed pulleys on the top of the work platform and fix it on the traction fixture;

Stretch the flexible cable and pull the vacuum tube forward through the temporary track to the official track of the molten salt line; after the vacuum tube is installed on the official track, untie the connection between the traction fixture and the vacuum heat collecting tube.

Beneficial effect

1) In this embodiment, through the cooperation between the fixed track and the temporary track, the range of activities of the entire device can be increased when the position of the fixed track is fixed, which facilitates the use of fixed area operations, reduces transportation and scattered operations, and reduces The risk of damage to the vacuum heat collecting tube is reduced.

2) In the present invention, the fixed track, temporary track, support frame, and wearable bracket used constitute an integrated movable work platform, which can be prefabricated in advance, and the integrated movable work platform has higher safety performance, recycling, and reduces manpower Cost: Compared with temporary scaffolding, the integrated work platform is more stable and safe. When moving, it is hoisted to the adjacent pipeline by crane, and the movement is more convenient, saving time and more labor costs.

3) In the present invention, the flexible cable is used to cooperate with the hoist to pull the heat-collecting vacuum tube, which is convenient for on-site arrangement, avoids the use of too many components on the integrated movable work platform, and reduces the complexity of the system.

Description of drawings

Figure 1 is an overall schematic diagram of the present invention according to one or more embodiments,

Figure 2 is a schematic top view of the present invention according to one or more embodiments,

Fig. 3 is a schematic diagram of a wearing bracket according to one or more embodiments of the present invention,

Fig. 4 is a schematic cross-sectional view of a temporary track according to one or more embodiments of the present invention,

Fig. 5 is a schematic diagram of a support frame of a temporary track according to one or more embodiments of the present invention.

In the figure: 100, windproof shed, 200, integrated wearable work platform, 300, winch, 400, steel wire rope, 500, vertical support, 1, fixed pulley, 2, temporary track, 5, steel wire rope, 6, fixed track, 7, heat collecting vacuum tube, 8, wearing support, 81, first waist bar, 82, second waist bar, 83, bottom edge plate, 84, middle bar, 85, cylindrical protrusion, 9, Bracing frame, 91, hoop, 92, bearing, 93, triangular support.

In order to show the position of each part, the distance or size between each part is exaggerated, and the schematic diagram is only used for illustration.

BEST MODE FOR CARRYING OUT THE INVENTION

It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the invention clearly states otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, their Indicates the presence of features, steps, operations, means, components and/or combinations thereof.

For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, it only means that they are consistent with the directions of up, down, left and right in the drawings themselves, and do not limit the structure. It is for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Explanation of terms: The terms "installation", "connection", "connection", "fixation" and other terms in the present invention should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection, or an electrical connection, a direct connection, or an indirect connection through an intermediary, or an internal connection between two elements, or an interaction relationship between two elements. For those of ordinary skill in the art, , the specific meanings of the above terms in the present invention can be understood according to specific situations.

As introduced in the background technology, in the prior art, the existing method of vacuum tube installation mainly has the following disadvantages: 1) The vacuum tube and the secondary mirror need to be transported to the site for segmented and dispersed assembly, which increases the probability of damage to the vacuum tube; 2) welding The openings are scattered, and they are all high-altitude operations, which increases the difficulty of welding and testing; 3) a large number of hoisting machinery is used, and the construction cost is high; 4) personnel and machinery are frequently transferred, and the construction efficiency is low. In order to solve the above technical problems, the present invention The purpose is to provide a linear Fresnel ultra-long-distance heat-collecting vacuum tube fast threading device and method, which adopts assembly line operation, greatly reduces the use of mobile cranes, reduces the reverse transportation of materials and the flow of personnel, and improves safety.

Example 1

In a typical implementation of the present invention, as shown in Figure 1, this embodiment provides a linear Fresnel ultra-long-distance heat collection vacuum tube 7 quick-fitting device, with an integrated wearing operation platform 200 as a linear The main installation and operation platform of the Fresnel ultra-long-distance heat-collecting vacuum tube 7 is an ultra-long (up to 2,000 meters) characteristic of the linear Fresnel ultra-long-distance heat-collecting vacuum tube 7. This embodiment uses an integrated The wearing work platform 200 assists in the installation of the linear Fresnel ultra-long-distance heat collecting vacuum tube 7 to be installed, and the integrated wearing work platform 200 is installed on the vertical support 500. In this embodiment, the integrated wearing work platform 200 is specifically Including fixed pulley 1, temporary track 2, welding windproof shed 100, winch 300, steel wire rope 400, fixed track 6, wearing bracket 8 and support frame 9, support frame 9 is slidably installed on fixed track 6 and temporary track 2, temporary track 2 Connected to one end of the fixed rail 6, the fixed pulley 1 is rotatably installed on the fixed rail 6 as an auxiliary rolling part of the steel wire rope 400, and one end of the steel wire rope 400 is connected to the hoist 300 so as to be driven by the hoist 300, and the middle part of the steel wire rope 400 is wound on the fixed pulley 1, and the wire rope The end of 400 is fixedly connected to the wearing bracket 8, so as to drive the vacuum heat collecting pipe to move on the fixed track 6 through the wearing bracket 8.

In yet another embodiment, the hoist 300 may be other forms of power source, such as the direct traction of the steel wire rope 400 by a car, or the manual traction of the steel wire rope 400 .

In yet another embodiment, the wire rope 400 may be other forms of flexible ropes, such as polymer synthetic ropes or chain locks.

Multiple steel wire ropes 400 are provided, and the multiple steel wire ropes 400 are respectively connected to both sides of the wearing bracket 8 .

The fixed pulley 1 in this embodiment can change the force of the hoist 300 received by the wire rope 400 from vertical to horizontal, and the horizontal traction of the two strands of wire rope 400 makes the entire dressing system run smoothly forward, and is not easy to cause uneven force. Shaken or broken.

It can be understood that, in the state shown in FIG. 2 , the heat collecting vacuum tube 7 is erected in the temporary track 2 through the support frame 9, and the tail section of the heat collecting vacuum tube 7 is inserted with a wearing bracket 8. When the wearing bracket 8 is subjected to During the tension of the steel wire rope 400, the heat collecting vacuum tube 7 that can be promoted moves on the fixed track 6 and the temporary track 2.

At the same time, in this embodiment, in order to facilitate the movement of the vacuum heat collecting tubes on the fixed track 6 and the temporary track 2, the heat collecting vacuum tube 7 is suspended in the temporary track 2 and the fixed track 6 by using the support frame 9, and the support frame 9 The heat-collecting vacuum tube 7 supported by it can be transported in a sliding or rolling manner.

At least a part of the fixed rail 6 is located in the welding windshield 100 . Since in this embodiment, the vacuum heat collecting tube needs to be welded during operation, it is necessary to use the welding windproof shed 100 to carry out necessary protection; it can be understood that the welding of the vacuum heat collecting tube is carried out in the welding windproof shed 100 of. In addition, please refer to FIG. 1 for the welding windshield 100 in this embodiment, which directly wraps one end of the fixed rail 6 . In the actual implementation of this embodiment, because the working platform is small, the combination of the heat collecting tubes adopts the combination of ground combination and platform combination. The length of heat collecting vacuum tube 7 is 3 meters each. Before hoisting to the operation platform, two heat collecting vacuum tubes 7 are welded and assembled into 6 meters each, and then hoisted to the construction platform for wearing and combining to form an ultra-long distance heat collecting Vacuum tube7.

The welding of heat collecting vacuum tube 7 in this embodiment adopts the technology of combining argon arc automatic welding and phased array detection to ensure the integrated assembly line operation of fitting, welding and detection, which greatly improves the work efficiency.

In the implementation scenario of this embodiment, there are 40 pipelines in one heat collection area. Compared with temporary scaffolding, the integrated work platform in this embodiment is more stable and safe. It is more convenient, saves time cost and more labor cost.

Please refer to FIG. 3 , the traction and fixing device in this embodiment, that is, the wearing bracket 8 , includes a triangular bracket and a cylindrical protrusion 85 connected to the bottom edge of the bracket. More specifically, the bracket includes a first waist bar 81, a second waist bar 82, a bottom side panel 93 and a middle bar 84, wherein the first waist bar 81, the second waist bar 82 and the bottom The side plate parts 93 are connected to form a tripod, and one end of the middle rod part 84 is connected to the middle position of the bottom side board part 93, and the other end is connected to the top angle position of the tripod; the bottom side board part 93 is then connected to the cylindrical protrusion 85, and the cylinder Shaped protrusion 85 is used for plugging the heat collecting vacuum tube 7 .

In this embodiment, the cylindrical protrusion 85 can be a steel pipe, and in other embodiments, it can also be a protrusion of other shapes, as long as it can meet the requirement of fixing the vacuum heat collecting tube.

The corner portion of the traction fixture facilitates the reduction of air resistance.

The temporary track 2 in this embodiment has a U-shaped cross-section and is provided with a groove matching the steel wire rope 400, so as to facilitate the transportation of the vacuum pipeline. The temporary track 2 is designed into a U-shaped structure, and the hoist 300 and the steel wire rope 400 are in the groove of the temporary track 2, so as to avoid collision with the vacuum heat collecting tube and cause damage to the vacuum heat collecting tube.

The support frame 9 in this embodiment specifically includes a hoop 91 and the support frame 9 , and the hoop 91 of the vacuum heat collection pipe is installed on the support frame 9 .

The supporting frame 9 is in the shape of an obtuse isosceles triangle, and bearings 92 are installed at both ends of its base, and the supporting frame 9 is slidably installed on the fixed rail 6 through the bearings 92 .

The connection in this embodiment is a detachable connection or a non-detachable connection, wherein the detachable connection is in the form of bolt connection, threaded connection or clamping, etc.; Just make a selection.

It should be understood that the winch 300 and the integrated piercing work platform 200 have an up-and-down structure, which serves as the up-and-down orientation reference system in the present invention.

Embodiments of the present invention

Example 2

In a typical implementation of the present invention, a method for quickly wearing a linear Fresnel ultra-long-distance heat-collecting vacuum tube 7 is disclosed, using the linear Fresnel ultra-long-distance heat-collecting vacuum tube 7 as in Example 1 to quickly Wearing device, comprises the following steps:

Hoist the heat collecting tube to the temporary wearing platform and place it on the wearing fixed track 6; keep the heat collecting tube and the sliding support frame 9 able to slide flexibly back and forth on the wearing fixed track 6; push the heat collecting tube forward to the welding windproof shed 100 Carry out automatic welding operation (the first heat collecting tube does not need welding operation);

After the welding is completed, the phased array inspection is carried out. After the welding joint is qualified, the traction and fixing device is placed on the end of the vacuum tube;

Traction two steel wire ropes 400, extend the steel wire ropes 400 through the two fixed pulleys 1 on the top of the work platform and fix them on the traction fixture;

After keeping the wire rope 400 flexible in the groove of the temporary track 2, start the hoist 300, and pull the vacuum tube forward through the temporary track 2 to the official track of the molten salt line;

After the vacuum tube is installed on the official track, untie the connection between the traction fixture and the vacuum heat collector; hoist the next heat collector to the temporary installation track, and repeat the above steps until the pipeline installation is completed.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (14)

1. A linear Fresnel ultra-long-distance heat-collecting vacuum tube quick-fitting device is characterized in that it includes a suspended fixed track and a support frame that slides or rolls to connect the fixed track, and the support frame is used to support the heat-collecting vacuum tube; the fixed track One end of one end is also connected with a temporary track, and the heat-collecting vacuum tube is plugged in for the wearing support; the supporting frame is connected with a flexible cable, and the flexible cable can pull the wearing support to move on the temporary track and the fixed track.
2. A linear Fresnel ultra-long-distance heat-collecting vacuum tube rapid installation device according to claim 1, wherein a vertical support is connected to the bottom side of the fixed track and the temporary track, and the fixed track The vertical support is fixedly connected, and the temporary track is detachably connected to the vertical support.
3. A linear Fresnel ultra-long-distance heat-collecting vacuum tube rapid installation device according to claim 1, wherein the top surface of the vertical support is flush with the top surface of the temporary track.
4. A linear Fresnel ultra-long-distance heat-collecting vacuum tube rapid threading device according to claim 1, wherein one end of the flexible cable is connected to a power source, and the other end of the flexible cable is connected to the threading bracket.
5. A linear Fresnel ultra-long-distance heat-collecting vacuum tube fast threading device according to claim 1, wherein the fixed track is equipped with a fixed pulley, and the flexible cable bypasses the fixed pulley and is connected to a power source.
6. A linear Fresnel ultra-long-distance heat-collecting vacuum tube fast threading device according to claim 1, 4 or 5, wherein the flexible cable is a steel wire rope.
7. A linear Fresnel ultra-long-distance heat-collecting vacuum tube quick-fitting device according to claim 1, 4 or 5, wherein the flexible cables are provided with multiple flexible cables, and the multiple flexible cables are respectively connected to the Wear both sides of the bracket.
8. A linear Fresnel ultra-long-distance heat-collecting vacuum tube rapid installation device according to claim 1, further comprising a power source for tightening or loosening the flexible cable, and one end of the flexible cable The rotating part connected to the power source.
9. A linear Fresnel ultra-long-distance heat-collecting vacuum tube rapid installation device according to claim 8, wherein the power source is a hoist.
10. A linear Fresnel ultra-long-distance heat-collecting vacuum tube rapid installation device according to claim 8 or 9, wherein the power source is fixed on the ground.
11. A linear Fresnel ultra-long-distance heat-collecting vacuum tube quick-fitting device according to claim 1, characterized in that there are multiple support frames, and the multiple support frames are all slidingly connected or rollingly connected to the Describe the temporary track.
12. A linear Fresnel ultra-long-distance heat-collecting vacuum tube quick-fitting device according to claim 1 or 11, wherein the support frame includes a triangular base and a hoop for fixing the heat-collecting vacuum tube, The hoop is connected to the top corner of the triangular base; the bottom corner of the triangular base is rotatably connected with rollers, and the triangular base is in contact with the temporary track through the rollers.
13. A linear Fresnel ultra-long-distance heat-collecting vacuum tube rapid installation device according to claim 1, wherein the temporary track is detachably connected to the end of the fixed track, and the temporary track is U-shaped .
14. A linear Fresnel ultra-long-distance heat-collecting vacuum tube quick-fitting method, characterized in that, using a linear Fresnel super-long-distance heat-collecting vacuum tube fast-fitting device as claimed in claim 1, comprising the following steps:

    Hoist the vacuum heat collecting tube to the temporary wearing platform and place it on the fixed track;

    Push the vacuum heat collecting tube forward to the welding windproof shed for automatic welding operation;

    After the welding is completed, the phased array inspection is carried out. After the welding joint is qualified, the traction and fixing device is placed on the end of the vacuum tube;

    Pull the flexible cable, extend the wire rope through the two fixed pulleys on the top of the work platform and fix it on the traction fixture;

    Stretch the flexible cable to pull the vacuum tube forward through the temporary track to the official track of the molten salt line;

    After the vacuum tube is installed on the formal track, untie the connection of the traction fixture and the vacuum heat collecting tube.