Elbow testing device for heat absorber and elbow for heat absorber

Abstract

The utility model relates to an elbow testing device for a heat absorber and an elbow for the heat absorber, which comprises a substrate and a die unit, the die unit comprises a plurality of dies, the substrate comprises a working surface, and the dies are detachably connected to the working surface; each mold comprises a body and a positioning groove which is formed in the body, one side of the top of each positioning groove is open, and all the positioning grooves in one mold unit are combined into a test area; when the shape of the bent pipe is matched with that of the test area, the bent pipe can be arranged in the test area; when the shape of the bent pipe is not matched with the shape of the testing area, the bent pipe cannot be arranged in the testing area, and the combined type die has the beneficial effects that the combined type die is adopted, so that the specific requirements of different bent pipes in the testing process can be matched to a great extent, for example, different bending positions of different bent pipes can be matched; the actual requirements of different bending directions and different bending angles are met, the testing efficiency of the bent pipe is greatly improved, and meanwhile the using flexibility of the testing die is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing bent pipes of absorbers in tower-type solar thermal power stations, and in particular to a testing device for bent pipes of absorbers. Background Art

[0002] Solar thermal power generation has become the main force of the renewable energy trend: With the intensification of global climate change, the importance of clean energy generation has been recognized internationally, especially for renewable energy generation. Strict requirements have been put forward internationally and domestically. Many domestic companies have taken solar thermal power generation as the main force of renewable energy generation, which will make solar thermal power generation technology more prominent in future development. From a technical point of view, in the process of promoting the development of the solar thermal power generation market, the research on solar thermal power generation technology can be accelerated and its system design can be optimized to reduce investment costs.

[0003] The tower-type CSP receiver technology has made CSP emerge and brought new opportunities. This innovative technology not only enables CSP systems to operate stably during the day and night, on sunny and cloudy days, but also improves the controllability, stability and output performance of the system. This innovation breaks through the bottleneck of traditional power generation technology and provides a powerful clean power solution for renewable energy. In the research and development of receiver design structure optimization and cost reduction, the application of new materials and molten salt flow distribution can continuously solve problems in the operation process.

[0004] In the tower-type solar thermal power station receiver, the receiver is the bent pipe as a key component. The manufacturing of the bent pipe determines the flatness and consistency of the receiver, and will also greatly affect the heat exchange efficiency of the tower-type solar thermal power station receiver.

[0005] A large number of elbows are gathered at the top heat exchange position of the tower-type solar thermal power station absorber. Since the elbows need to be connected to a main pipe, it is necessary to consider the need for the elbows to give way to each other, as well as the flow resistance and flow direction of the fluid in the elbow cavity. Therefore, the elbows need to be designed into a predetermined shape to meet the above requirements.

[0006] This patent aims to provide a combined die to achieve accurate calibration of the bent tube shape. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a bend pipe testing device for a heat absorber to achieve accurate calibration of the bend pipe shape.

[0009] (II) Technical solution

[0010] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0011] In the first aspect, the utility model provides a bent pipe testing device for a heat absorber, comprising a base plate and a mold unit, the mold unit comprising a plurality of molds, the base plate comprising a working surface, and the molds are all detachably connected to the working surface; the mold comprises a main body and a positioning groove opened on the main body and open on one side of the top, all the positioning grooves in one mold unit are combined into a testing area; when the shape of the bent pipe matches the shape of the testing area, the bent pipe can be loaded into the testing area; when the shape of the bent pipe does not match the shape of the testing area, the bent pipe cannot be loaded into the testing area.

[0012] In a technical solution of the utility model, the mold also includes a pressing block detachably connected to the top of the main body, and the surface of the pressing block facing the positioning groove is provided with a pressing groove corresponding to the position of the positioning groove, and the pressing groove can load the bent pipe.

[0013] In a technical solution of the utility model, the edge of the positioning groove has an introduction slope extending toward the bottom of the positioning groove.

[0014] In a technical solution of the utility model, the mold unit is configured as one or more groups detachably connected to the base plate; a groove is opened on the working surface, and the groove includes a variety of contour shapes, and the bottom contour shape of the corresponding body is consistent with the contour shape of the corresponding groove.

[0015] In a technical solution of the utility model, the pipe bending assembly mold is provided as a plurality of vertically stacked substrates, and an operating space is formed between adjacent substrates.

[0016] In a technical solution of the utility model, the angle between the working surface and the horizontal direction is 10°-45° and the working surface is kept in an upward tilted posture, and the adjacent working surfaces are in opposite directions.

[0017] In a technical solution of the utility model, the bent pipe testing device for a heat absorber further includes a column to achieve mutual support of adjacent substrates.

[0018] In a technical solution of the utility model, the bent pipe testing device for the heat absorber also includes a lifting device, which can drive the substrate to move vertically up and down to change the height of the working surface.

[0019] In a technical solution of the utility model, the lifting device includes a driving member and a guiding member, the driving member is directly or indirectly drivingly connected to at least one substrate, and the guiding member is directly or indirectly slidingly matched to at least one substrate.

[0020] In a second aspect, the utility model provides a bent pipe for a heat absorber, and the shape of the bent pipe is tested by a bent pipe testing device for a heat absorber in any of the above-mentioned technical solutions.

[0021] (III) Beneficial effects

[0022] The beneficial effects of the utility model are as follows: the heat absorber bend test device of the utility model has a detachable connection between the mold and the working surface of the substrate, and different molds, different layouts and different combinations can form test areas of different shapes. When the shape of the test area matches the shape of the corresponding bend, the bend can be loaded into the test area, which means that the shape of the bend meets the requirements. If the shape of the test area does not match the shape of the corresponding bend, the bend cannot be loaded into the test area, which means that the shape of the bend does not meet the requirements, and the bend needs to be reshaped and tested again until the shape of the bend meets the requirements.

[0023] Since a combined mold is used, it can match the specific needs of the testing process of different bent pipes to a great extent, for example, it can match the actual needs of different bending positions, different bending directions and different bending angles of different bent pipes, greatly improving the testing efficiency of the bent pipes, and also improving the flexibility of the use of the test mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the schematic diagrams of the top view structure of the substrate of the utility model;

[0025] Figure 2 This is the second schematic diagram of the top view structure of the substrate of the utility model;

[0026] Figure 3 This is one of the structural schematic diagrams of the mold and the substrate of the utility model;

[0027] Figure 4 This is the second structural schematic diagram of the mold and the base plate of the utility model;

[0028] Figure 5 This is a schematic diagram of the axial structure of the bent pipe testing device for the heat absorber of the utility model;

[0029] Figure 6 It is a left-side structural schematic diagram of a bent pipe testing device for a heat absorber in another embodiment of the utility model.

[0030] [Description of Reference Numerals]

[0031] 1: substrate; A: working surface; D: groove;

[0032] 2: mold; 21: body; 22: positioning groove; 23: pressing block; B: pressing groove; C: introduction slope;

[0033] 3: Column;

[0034] 4: lifting device; 41: driving member; 42: guiding member.

[0035] 100: elbow; 200: main pipe. DETAILED DESCRIPTION

[0036] In order to better explain the present invention and facilitate understanding, the following Figure 1-6 , the utility model is described in detail through specific implementation methods. Among them, the directional nouns such as "upper" and "lower" mentioned in this article are Figure 5 The orientation is used as a reference.

[0037] Embodiment 1:

[0038] Reference Figure 1-Figure 4 An embodiment of the utility model provides a bent pipe testing device for a heat absorber, including a substrate 1 and a mold unit, the mold unit includes a plurality of molds 2, the substrate 1 includes a working surface A, and the molds 2 can be detachably connected to the working surface A; the mold 2 includes a main body 21 and a positioning groove 22 opened on the main body 21 and open on one side of the top, all the positioning grooves 22 in one mold unit are combined into a test area; when the shape of the bent pipe 100 matches the shape of the test area, the bent pipe 100 can be loaded into the test area; when the shape of the bent pipe 100 does not match the shape of the test area, the bent pipe 100 cannot be loaded into the test area.

[0039] In this embodiment, the mold 2 is detachably connected to the working surface A of the substrate 1. Through different layouts and combinations of different molds 2, different forms of test areas can be formed. When the form of the test area matches the form of the corresponding elbow 100, the elbow 100 can be loaded into the test area, which means that the form of the elbow 100 meets the requirements. If the form of the test area does not match the form of the corresponding elbow 100, the elbow 100 cannot be loaded into the test area, which means that the form of the elbow 100 does not meet the requirements, and the elbow 100 needs to be reshaped and tested again until the form of the elbow 100 meets the requirements.

[0040] Since a combined mold 2 is used, it can match the specific requirements of the testing process of different bent pipes 100 to a great extent, for example, it can match the actual requirements of different bending positions, different bending directions and different bending angles of different bent pipes 100, greatly improving the testing efficiency of the bent pipe 100, and also improving the flexibility of using the test mold 2.

[0041] Specifically, the mold 2 and the base plate 1 can both be made of metal, and the bent pipe 100 is a hollow circular pipe, which is connected to the main pipe 200 when in use.

[0042] The positioning groove 22 can be set as a semi-cylindrical groove, and is made by removing material from the mold 2.

[0043] Embodiment 2:

[0044] Reference Figure 3 and Figure 4In addition to all the technical solutions of the above embodiments, the embodiments of the present utility model further have the following technical solutions:

[0045] The mold 2 further comprises a pressing block 23 detachably connected to the top of the body 21 . A surface of the pressing block 23 facing the positioning groove 22 is provided with a pressing groove B corresponding to the position of the positioning groove 22 . The pressing groove B can load the bent pipe 100 .

[0046] In this embodiment, the pressing block 23 can squeeze the elbow 100 to a certain extent. When the shape of the corresponding elbow 100 is not much different from the shape of the corresponding test area, the elbow 100 can be deformed by the loading of the pressing block 23, and then enter the positioning area, and the shape of the elbow 100 is corrected by the positioning area. However, if the shape deviation of the elbow 100 is large from the design shape, this method cannot be used to correct the elbow 100.

[0047] Specifically, the pressing block 23 can be detachably connected to the main body 21 by a connection method including bolt connection, and the pressing block 23 also has a pressing groove B matching the shape of the elbow 100 to better achieve loading of the elbow 100.

[0048] The pressing block 23 may also be hinged to the top of the main body 21 at one side, and connected to the main body 21 at the other side by connecting members such as bolts or buckles, so as to realize the rapid opening and closing of the pressing block 23 .

[0049] Embodiment 3:

[0050] Reference Figure 3 and Figure 4 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present utility model further have the following technical solutions:

[0051] The edge of the positioning groove 22 has an introduction slope C extending toward the bottom of the positioning groove 22 .

[0052] In this embodiment, the guiding slope can guide the bent pipe 100 into the positioning groove 22, thereby improving the convenience of the testing process of the bent pipe 100.

[0053] At the same time, when this embodiment is combined with embodiment 2, the introduction slope C can guide the direction of the bent pipe 100 when the pressing block 23 squeezes the bent pipe 100, thereby facilitating the shape correction process of the bent pipe 100.

[0054] Specifically, the pressing groove B is also configured as a cylindrical groove matching the shape of the elbow 100 .

[0055] Embodiment 4:

[0056] Reference Figure 3 and Figure 4In addition to all the technical solutions of any of the above embodiments, the embodiments of the present utility model further have the following technical solutions:

[0057] The mold unit is configured as one or more groups detachably connected to the base plate 1 ; a groove D is provided on the working surface A, and the groove D includes a variety of contour shapes, and the bottom contour shape of the corresponding body 21 matches the contour shape of the corresponding groove D.

[0058] In this embodiment, by arranging multiple mold units on a substrate 1, the utilization rate of the mounting surface on the substrate 1 can be improved. By flexibly adjusting the arrangement of the mold units, multiple mold units can be used simultaneously without interference, thereby improving the testing efficiency of the bent pipe 100.

[0059] Specifically, the mold units on the same substrate 1 can be configured to match a type of bent pipe 100 , thereby improving the consistency of the detection process and further improving the detection efficiency of the bent pipe 100 .

[0060] At the same time, a type of groove D matches a type of body 21, so that it can provide assembly guidance for the assembly process of the device and improve assembly convenience.

[0061] Specifically, a convex block may be protruded from a specific position on the bottom surface of the body 21 , and the corresponding groove D may match the ground shape of the body 21 including the convex block.

[0062] Embodiment 5:

[0063] Reference Figure 5 and Figure 6 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present utility model further have the following technical solutions:

[0064] The combined mold 2 of the bent pipe 100 is arranged in a plurality of vertically stacked layers, and an operating space is formed between adjacent substrates 1 .

[0065] The bent pipe testing device for the heat absorber also includes a column 3 to achieve mutual support of adjacent substrates 1. The column 3 may include a column and a flange connected to each other. The flange is used to connect the substrates 1, so that all the substrates 1 form an interconnected whole.

[0066] In this embodiment, a vertically arranged curved pipe 100 test area is formed by vertically stacking the substrates 1, thereby further increasing the maximum number of curved pipes 100 that can be tested by the device at a single time, thereby improving the testing efficiency of the curved pipes 100.

[0067] Since operation space is reserved between adjacent substrates 1 , no negative impact is exerted on the test process.

[0068] Specifically, the height of the operating space can be set to 0.5m-0.8m.

[0069] Embodiment 6:

[0070] Reference Figure 6 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present utility model further have the following technical solutions:

[0071] The working surface A is at an angle of 10°-45° to the horizontal direction and the working surface A is kept tilted upward, and the directions of adjacent working surfaces A are opposite.

[0072] In this embodiment, the working surface A is arranged at an angle, so that the working surface A has better ergonomics and thus better matches the detection process of the bent pipe 100 .

[0073] At the same time, facing the opposite working surface A can make more operating space above the working surface A, thereby facilitating the testing work of the bent pipe 100.

[0074] Embodiment 7:

[0075] Reference Figure 5 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present utility model further have the following technical solutions:

[0076] The heat absorber bent pipe testing device also includes a lifting device 4, which can drive the substrate 1 to move vertically up and down to change the height of the working surface A.

[0077] The lifting device 4 includes a driving member 41 and a guiding member 42 . The driving member 41 is directly or indirectly drivingly connected to at least one substrate 1 , and the guiding member 42 is directly or indirectly slidingly matched to at least one substrate 1 .

[0078] In this embodiment, a lifting device 4 is additionally provided to drive all the substrates 1 to rise and fall in linkage, so that the height of the working surface A meets the most comfortable operating height during testing, thereby further improving the testing efficiency of the bent pipe 100.

[0079] Specifically, the driving member 41 can be set as a winch, which is installed on the gantry. After establishing a driving connection with the top substrate 1 through a steel cable, the substrate 1 can be driven to rise and fall. At the same time, a counterweight can also be set on the bottom substrate 1 to improve the stability of the substrate 1 when it is raised and lowered.

[0080] Or Figure 5 As shown, the driving member 41 is configured as a screw assembly, the screw is threadedly connected to the base plate 1, and the base plate 1 is driven to rise and fall by the screw.

[0081] The guide member 42 can be set as a polished rod slidably connected to at least one substrate 1. The guiding direction of the guide member 42 is consistent with the lifting direction of the substrate 1. Please refer to Figure 5 .

[0082] Embodiment 8:

[0083] Reference Figure 1-4 An embodiment of the utility model provides a bent pipe for a heat absorber. The shape of the bent pipe 100 is tested by the heat absorber bent pipe testing device in any of the above embodiments to obtain a heat absorber bent pipe 100 with a qualified shape. For example, the bent pipe 100 can be used in a tower-type solar thermal power station absorber.

[0084] It can be understood that, except for any conflicting parts, the above-mentioned embodiments 1-8 can be freely combined to form other implementation methods of the present utility model.

[0085] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0086] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0088] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0089] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A heat absorber bend pipe testing device, used for testing the shape of a bend pipe (100), characterized in that: It comprises a base plate (1) and a mold unit, wherein the mold unit comprises a plurality of molds (2), the base plate (1) comprises a working surface (A), and the molds (2) are all detachably connected to the working surface (A); The mold (2) comprises a body (21) and a positioning groove (22) which is provided on the body (21) and has one side of the top open, and all the positioning grooves (22) in one mold unit are combined into a test area; When the shape of the curved pipe (100) matches the shape of the test area, the curved pipe (100) can be loaded into the test area; when the shape of the curved pipe (100) does not match the shape of the test area, the curved pipe (100) cannot be loaded into the test area.

2. The heat absorber bend test device according to claim 1, characterized in that: The mold (2) further comprises a pressing block (23) detachably connected to the top of the body (21); a surface of the pressing block (23) facing the positioning groove (22) is provided with a pressing groove (B) corresponding to the position of the positioning groove (22); and the pressing groove (B) is capable of loading the bent pipe (100).

3. The heat absorber bend test device according to claim 2, characterized in that: The edge of the positioning groove (22) is provided with an introduction slope (C) extending toward the bottom of the positioning groove (22).

4. The heat absorber bend test device according to any one of claims 1 to 3, characterized in that: The mold units are configured as one or more groups detachably connected to the base plate (1); The working surface (A) is provided with a groove (D), and the groove (D) includes a plurality of contour shapes, and the contour shape of the bottom of the corresponding body (21) is consistent with the contour shape of the corresponding groove (D).

5. The heat absorber bend test device as claimed in claim 4, characterized in that: The bent pipe (100) combined mold (2) is configured as a plurality of molds arranged in a vertical stack, and an operating space is formed between adjacent substrates (1).

6. The heat absorber bend test device according to claim 5, characterized in that: The working surface (A) is at an angle of 10°-45° with the horizontal direction and the working surface (A) is kept in an inclined upward posture, and the directions of adjacent working surfaces (A) are opposite.

7. The heat absorber bend test device according to claim 6, characterized in that: The heat absorber bent pipe testing device further comprises a column (3) to achieve mutual support of adjacent substrates (1).

8. The heat absorber bend pipe testing device according to claim 7, characterized in that: The heat absorber bent pipe testing device further comprises a lifting device (4), wherein the lifting device (4) can drive the substrate (1) to move vertically up and down to change the height of the working surface (A).

9. The heat absorber bend test device according to claim 8, characterized in that: The lifting device (4) comprises a driving member (41) and a guiding member (42); the driving member (41) is directly or indirectly drivingly connected to at least one substrate (1); and the guiding member (42) is directly or indirectly slidingly matched to at least one substrate (1).

10. A bent pipe for a heat absorber, characterized in that: The shape of the bent pipe (100) is tested by the bent pipe testing device for a heat absorber according to any one of claims 1 to 9.

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