CN216247577U - Observation positioning device and detector of indentation mechanical property detector pressure head - Google Patents
Observation positioning device and detector of indentation mechanical property detector pressure head Download PDFInfo
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- CN216247577U CN216247577U CN202122025731.XU CN202122025731U CN216247577U CN 216247577 U CN216247577 U CN 216247577U CN 202122025731 U CN202122025731 U CN 202122025731U CN 216247577 U CN216247577 U CN 216247577U
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- 238000007373 indentation Methods 0.000 title claims abstract description 36
- 230000004069 differentiation Effects 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 description 12
- 238000001514 detection method Methods 0.000 description 7
- 239000013078 crystal Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model provides an observation positioning device of a pressure head of an indentation mechanical property detector, which comprises an observation device and a fixing plate, wherein the observation device is arranged on the fixing plate; a fixed plate is fixed at the bottom end of the observation device; the observation device comprises a first vertical pipe, a transverse pipe, a second vertical pipe, a first plane mirror and a second plane mirror; one end of a transverse pipe is fixed at the bottom end of the first vertical pipe, a first plane mirror is embedded in the joint of the first vertical pipe and the transverse pipe, and the light reflecting surface of the first plane mirror is positioned inside the joint of the first vertical pipe and the transverse pipe; the other end of the transverse pipe is fixed with the top end of a second vertical pipe, a second plane mirror is embedded in the joint of the transverse pipe and the second vertical pipe, and the reflecting surface of the second plane mirror is located inside the joint of the transverse pipe and the second vertical pipe. The mechanism is arranged in the observation positioning device of the pressure head, so that the device can accurately observe the position of the pressure head of the indentation mechanical property detector to ensure the positioning precision of the pressure head and further ensure the measurement precision of the indentation mechanical property detector.
Description
Technical Field
The utility model relates to the technical field of mechanical property detection, in particular to an observation positioning device of a pressure head of an indentation mechanical property detector and an indentation mechanical property detector with the same.
Background
The portable indentation mechanical property detector comprises a detector clamp and a detector host, and can be used for carrying out online mechanical property detection on the pressure pipeline of the thermal power plant; because sampling is not needed, and the deformation area is relatively small, the indentation method can be suitable for testing the mechanical property of the local area (such as a welding seam and a heat affected zone) of the pipeline welding joint; if the portable indentation mechanical property detector is used for Vickers hardness detection, the length of the diagonal line of the indentation is about 0.56mm, and the deformation area is about 1 mm; when the tensile strength and the yield strength are detected, the diameter of the indentation is about 0.5mm, and the deformation area is about 1.5 mm; the width of a conventional welding heat affected zone is 5-10 mm, and the width of a coarse crystal zone and a fine crystal zone is about 2-3 mm; therefore, when the mechanical property of the heat affected zone of the welded joint is detected, especially when different heat affected zone sub-zones (such as a coarse crystal zone, a fine crystal zone and the like) are detected, the positioning precision of the pressure head needs to be ensured to be about 2 mm; when the local position of the pipeline welding joint is detected, the measuring position needs to be accurately positioned.
However, the clamp of the portable mechanical property detector blocks the sight line, so that the state of the observation pressure head is inconvenient to observe, and the accurate positioning cannot be realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a pressure head observation and positioning device which is convenient for observing the state of a pressure head of an indentation mechanical property detector and accurately positioning so as to ensure the measurement precision of the indentation mechanical property detector.
The utility model solves the technical problems through the following technical means:
the observation positioning device of the indentation mechanical property detector pressure head comprises an observation device (3) and a fixed plate (4); a fixed plate (4) is fixed at the bottom end of the observation device (3); the observation device (3) comprises a first vertical pipe (31), a transverse pipe (32), a second vertical pipe (33), a first plane mirror (34) and a second plane mirror (35); one end of a transverse pipe (32) is fixed at the bottom end of the first vertical pipe (31), a first plane mirror (34) is embedded at the joint of the first vertical pipe (31) and the transverse pipe (32), and the light reflecting surface of the first plane mirror (34) is positioned inside the joint of the first vertical pipe (31) and the transverse pipe (32); the other end of the transverse pipe (32) is fixed with the top end of a second vertical pipe (33), a second flat mirror (35) is embedded in the joint of the transverse pipe (32) and the second vertical pipe (33), and the reflecting surface of the second flat mirror (35) is positioned inside the joint of the transverse pipe (32) and the second vertical pipe (33).
Has the advantages that: through the mutual matching of the first vertical pipe, the transverse pipe, the second vertical pipe, the first plane mirror and the second plane mirror, the position and the state of the pressure head can be observed from the top end of the first vertical pipe by workers through the reflection action of light; the device has the advantages of ingenious design, convenient operation and accurate positioning, and can effectively observe the position of the pressure head by utilizing the principles of light reflection and refraction.
Furthermore, an opening is formed in the second plane mirror (35); and light sources with adjustable brightness are fixed on the peripheral side walls in the second vertical tube (35).
Has the advantages that: through the arrangement of the opening and the brightness-adjustable light source, the observation definition can be enhanced, so that the position and the state of the pressure head can be conveniently observed.
Furthermore, an objective lens (311) and an ocular lens (313) are sequentially fixed on the top section in the first vertical pipe (31) from top to bottom.
Has the advantages that: through mutually supporting of objective and eyepiece, can enlarge pressure head and its surrounding environment, the staff of being convenient for observes from the top of first standpipe.
Furthermore, an objective lens (311), a differentiation plate (312) and an eyepiece (313) are sequentially fixed on the top section of the interior of the first vertical pipe (31) from top to bottom, and scale marks for measuring distance are engraved in the middle of the differentiation plate (312).
Has the advantages that: through the setting of scale mark on the differentiation board, can the position in the accurate measurement observation visual field, the distance between control pressure head and the fuse line and the distance between pressure head and the last impression to the degree of accuracy and the detection efficiency of measuring the location have been improved.
The application also discloses an indentation mechanical property detector of the observation positioning device of the indentation mechanical property detector pressure head, which comprises a detector host (1), a detector clamp (2), an observation device (3) and a fixing plate (4); a detector clamp (2) is arranged below the detector main machine (1), and a pressure head (11) is fixed on the bottom wall of the detector main machine (1); a transverse pipe (32) and a second vertical pipe (33) on the observation device (3) penetrate through one side wall of the detector clamp (2) and extend into the detector clamp (2), and the transverse pipe (32) and the detector main machine (1) are fixed through a fixing plate (4); the pressure head (11) penetrates through the upper wall and the lower wall of the detector clamp (2), the second plane mirror (35) and the second vertical pipe (33) to extend out.
Has the advantages that: when the detector is used, a pressure head on the bottom wall of a detector host penetrates through the detector clamp and extends into the detector clamp, the bottom wall of the detector host and the top wall of the detector clamp are fixed, an observation device penetrates through one side wall of the detector clamp and extends into the detector clamp, the pressure head penetrates through the observation device and extends out, and finally the detector host and the observation device are fixedly connected through a fixing plate; when the device works, the assembled device is integrally placed above a local area (such as a welding seam and a heat affected zone) of a welding joint of the pressure pipeline, and then the state of a pressure head can be observed and recorded through an observation device, so that the related mechanical property of the pipeline is detected; the device is simple to install, convenient to operate, accurate in positioning and convenient to observe.
Furthermore, the detector clamp (2) is vertically provided with a first opening (21) in a penetrating manner, a side wall of the detector clamp (2) is provided with a second opening (22), the transverse pipe (32) and the second vertical pipe (33) on the observation device (3) extend into the detector clamp (2) from the second opening (22), and the pressure head (11) extends into the detector clamp (2) from the first opening (21) and extends out through the second plane mirror (35) and the second vertical pipe (33).
Furthermore, a support rod (23) is fixed to the bottom section of a second opening (22) in one side wall of the detector clamp (2), and a transverse pipe (32) on the observation device (3) is located above the support rod (23).
Has the advantages that: through the setting of bracing piece, can be used for supporting viewing device, guarantee viewing device stability in the course of the work, and then guaranteed the device's positioning measurement precision.
Furthermore, a fixed seat (12) is fixed in the middle of the bottom wall of the detector main body (1), and a pressure head (11) is fixed at the bottom end of the fixed seat (12).
Furthermore, the fixing plates (4) are respectively arranged at the front and the rear, the top ends of the fixing plates (4) are fixed on the front and rear walls of the fixing seat (12), and the bottom ends of the fixing plates (4) are fixed on the front and rear walls of the transverse pipe (32).
Furthermore, the pressure head (11) penetrates through the second plane mirror (35) and the center of the second vertical pipe (33) to extend out.
Has the advantages that: the arrangement of the relative positions of the pressure head and the second plane mirror is convenient for the comprehensive and clear observation of the pressure head and the surrounding environment from the top end of the first vertical pipe.
The utility model has the advantages that:
the utility model is provided with a first vertical pipe, a transverse pipe, a second vertical pipe, a first plane mirror and a second plane mirror in an observation positioning device of a pressure head; through the mutual matching of the first vertical pipe, the transverse pipe, the second vertical pipe, the first plane mirror and the second plane mirror, the position and the state of the pressure head can be observed from the top end of the first vertical pipe by workers through the reflection action of light; the device has the advantages of ingenious design, convenient operation and accurate positioning, and can effectively observe the position of the pressure head by utilizing the principles of light reflection and refraction.
The indentation mechanical property detector is provided with a detector host, a detector clamp, an observation device and a fixing plate; when the device works, the assembled device is integrally placed above a local area (such as a welding seam and a heat affected zone) of a welding joint of the pressure pipeline, and then the state of a pressure head can be observed and recorded through an observation device, so that the related mechanical property of the pipeline is detected; the device is simple to install, convenient to operate, accurate in positioning and convenient to observe.
The utility model can be used for supporting the observation device through the arrangement of the supporting rod, ensures the stability of the observation device in the working process and further ensures the positioning measurement precision of the device.
According to the utility model, the pressure head and the surrounding environment of the pressure head can be comprehensively and clearly observed from the top end of the first vertical pipe through the arrangement of the relative positions of the pressure head and the second plane mirror.
The utility model can enhance the observation definition through the arrangement of the light source with adjustable brightness, thereby being convenient to observe the position and the state of the pressure head.
According to the utility model, through the mutual matching of the objective lens and the ocular lens, the pressure head and the surrounding environment thereof can be enlarged, and the staff can conveniently observe from the top end of the first vertical pipe.
According to the utility model, through the arrangement of the scale marks on the differentiation plate, the position in the observation field can be accurately measured, and the distance between the pressure head and the fusion line and the distance between the pressure head and the previous indentation are controlled, so that the accuracy of measurement and positioning and the detection efficiency are improved.
Drawings
FIG. 1 is an exploded view of an indentation mechanical property detector in example 1 of the present invention;
FIG. 2 is a front perspective view of an indentation mechanical property detector in example 1 of the present invention;
FIG. 3 is a perspective view of an indentation mechanical property detector in accordance with embodiment 1 of the present invention;
FIG. 4 is a perspective view of another view of the indentation mechanical property detector in embodiment 1 of the present invention;
fig. 5 is a right side view of the indentation mechanical property detector of embodiment 1 of the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1, the present embodiment provides an indentation mechanical property detector, which includes a detector main unit 1, a detector clamp 2, an observation device 3, and a fixing plate 4.
As shown in fig. 1, a fixing seat 12 is fixed in the middle of the bottom wall of the detector main body 1, and a pressure head 11 is fixed at the bottom end of the fixing seat 12 and used for detecting the mechanical property of the detected material.
As shown in fig. 1, a first opening 21 is formed in the detector clamp 2 in a vertically penetrating manner, so that a pressure head 11 on the detector main body 1 can extend out through the detector clamp 2; a second opening 22 is formed in the right wall of the detector clamp 2, so that the observation device 3 can conveniently extend into the detector clamp 2; a support rod 23 is fixed at the bottom section of a second opening 22 on the right wall of the detector clamp 2 and used for supporting the observation device 3; the detector main body 1 penetrates through the first opening 21 and is fixedly connected with the top wall of the detector clamp 2.
As shown in fig. 2, the observation device 3 includes a first vertical pipe 31, a horizontal pipe 32, a second vertical pipe 33, a first plane mirror 34, and a second plane mirror 35;
as shown in fig. 2, the right end of the transverse pipe 32 is fixed to the bottom end of the first vertical pipe 31, and a first plane mirror 34 is embedded in the joint of the first vertical pipe 31 and the transverse pipe 32, and the reflective surface of the first plane mirror 34 is located inside the joint of the first vertical pipe 31 and the transverse pipe 32; an objective lens 311, a differentiation plate 312 and an eyepiece 313 are sequentially fixed on the top section inside the first vertical pipe 31 from top to bottom, a scale mark for measuring distance is engraved in the middle position of the differentiation plate 312, the objective lens 311 and the eyepiece 313 are used for amplifying and observing the position and the state of the pressure head 11, the position of the pressure head 11 on a welding seam, a heat affected zone and other parts can be accurately measured by using the scale mark on the differentiation plate 312, the positioning precision of the pressure head 11 is improved, the detection accuracy is further improved, and the detection efficiency is improved;
as shown in fig. 3, the left end of the transverse pipe 32 is fixed with the top end of the second vertical pipe 33, and a second flat mirror 35 is embedded in the joint of the transverse pipe 32 and the second vertical pipe 33, and the reflective surface of the second flat mirror 35 is located inside the joint of the transverse pipe 32 and the second vertical pipe 33; an opening (not shown) is formed on the second plane mirror 35; as shown in fig. 4, the indenter 11 extends through the opening of the second flat mirror 35 and the second vertical tube 33, in this embodiment, the indenter 11 extends through the second flat mirror 35 and the center of the second vertical tube 33, and this arrangement can reflect the state of the indenter to the objective lens 311, the differentiation plate 312, and the eyepiece lens 313 in the first vertical tube 31 by the reflection of the first flat mirror 34 and the second flat mirror 35; the light sources with adjustable brightness are fixed on the peripheral side walls inside the second vertical tube 33, so that the observation definition is enhanced, and the position and the state of the pressure head 11 can be conveniently observed;
as shown in fig. 2 and 5, the horizontal tube 32 is disposed above the support rod 23, one end of the horizontal tube 33 extends into the measuring device fixture 2 from the second opening 22, and the fixing seat 12 above the indenter 11 is fixedly connected to the left end of the horizontal tube 32 through the fixing plate 4.
As shown in fig. 2 and 3, the fixing plates 4 are respectively arranged in front and at the back, the top ends of the fixing plates 4 are fixed on the fixing seats 12 above the pressure heads 11, and the bottom ends of the fixing plates are fixed on the transverse pipes 32 for fixedly connecting the detector main body 1 and the observation device 3.
When the detector is used, firstly, the pressure head 11 on the bottom wall of the detector main body 1 penetrates through the first opening 21 and extends into the detector clamp 2, the bottom wall of the detector main body 1 and the top wall of the detector clamp 2 are fixed, then the observation device 3 extends into the detector clamp 2 from the second opening 22, simultaneously, the pressure head 11 penetrates through the second plane mirror 35 and the second vertical pipe 33 and extends out, and finally, the fixed seat 12 above the pressure head 11 and the transverse pipe 32 are fixedly connected through the fixed plate 4; during operation, the assembled device is integrally placed above a local area (such as a welding seam and a heat affected zone) of a pressure pipeline welding joint, then the state of the pressure head 11 is reflected to the objective lens 311, the differentiation plate 312 and the eyepiece 313 through the first plane mirror 34 and the second plane mirror 35, the pressure head 11 and the surrounding environment are amplified through the objective lens 311 and the eyepiece 313, then the distance between the pressure head 11 and the local area of the pipeline welding joint is measured through the scale marks on the differentiation plate 312, and then the related mechanical property of the pipeline is detected.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An observation positioning device of a pressure head of an indentation mechanical property detector is characterized by comprising an observation device (3) and a fixing plate (4); a fixed plate (4) is fixed at the bottom end of the observation device (3);
the observation device (3) comprises a first vertical pipe (31), a transverse pipe (32), a second vertical pipe (33), a first plane mirror (34) and a second plane mirror (35); one end of a transverse pipe (32) is fixed at the bottom end of the first vertical pipe (31), a first plane mirror (34) is embedded at the joint of the first vertical pipe (31) and the transverse pipe (32), and the light reflecting surface of the first plane mirror (34) is positioned inside the joint of the first vertical pipe (31) and the transverse pipe (32); the other end of the transverse pipe (32) is fixed with the top end of a second vertical pipe (33), a second flat mirror (35) is embedded in the joint of the transverse pipe (32) and the second vertical pipe (33), and the reflecting surface of the second flat mirror (35) is positioned inside the joint of the transverse pipe (32) and the second vertical pipe (33).
2. The observation and positioning device for the indenter of the indentation mechanical property detector of claim 1, wherein: the second plane mirror (35) is provided with an opening; and light sources with adjustable brightness are fixed on the peripheral side walls in the second vertical tube (33).
3. The observation and positioning device for the indenter of the indentation mechanical property detector of claim 1, wherein: an objective lens (311) and an ocular lens (313) are sequentially fixed on the top section in the first vertical pipe (31) from top to bottom.
4. The observation and positioning device for the indenter of the indentation mechanical property detector of claim 1, wherein: an objective lens (311), a differentiation plate (312) and an eyepiece (313) are sequentially fixed on the top section of the interior of the first vertical tube (31) from top to bottom, and scale marks for measuring distance are engraved in the middle of the differentiation plate (312).
5. The indentation mechanical property detector adopting the observation positioning device of the indentation mechanical property detector indenter of any one of the claims 1-4 is characterized by comprising a detector main machine (1), a detector clamp (2), an observation device (3) and a fixing plate (4); a detector clamp (2) is arranged below the detector main machine (1), and a pressure head (11) is fixed on the bottom wall of the detector main machine (1); a transverse pipe (32) and a second vertical pipe (33) on the observation device (3) penetrate through one side wall of the detector clamp (2) and extend into the detector clamp (2), and the transverse pipe (32) and the detector main machine (1) are fixed through a fixing plate (4); the pressure head (11) penetrates through the upper wall and the lower wall of the detector clamp (2), the second plane mirror (35) and the second vertical pipe (33) to extend out.
6. The indentation mechanical property detector of claim 5, characterized in that: first opening (21) have been seted up in detector anchor clamps (2) run through from top to bottom, second opening (22) have been seted up to a lateral wall of detector anchor clamps (2), violently pipe (32) and second standpipe (33) on viewing device (3) stretch into in detector anchor clamps (2) from second opening (22), pressure head (11) stretch into in detector anchor clamps (2) from first opening (21) to run through second plane mirror (35) and second standpipe (33) and stretch out.
7. The indentation mechanical property detector of claim 6, characterized in that: the bottom section of the second opening (22) on one side wall of the detector clamp (2) is fixed with a support rod (23), and a transverse pipe (32) on the observation device (3) is positioned above the support rod (23).
8. The indentation mechanical property detector of claim 5, characterized in that: the detector is characterized in that a fixed seat (12) is fixed in the middle of the bottom wall of the detector main body (1), and a pressure head (11) is fixed at the bottom end of the fixed seat (12).
9. The indentation mechanical property detector of claim 8, wherein: the fixing plates (4) are respectively arranged at the front and the rear, the top ends of the fixing plates (4) are fixed on the front and rear walls of the fixing seats (12), and the bottom ends of the fixing plates (4) are fixed on the front and rear walls of the transverse pipe (32).
10. The indentation mechanical property detector of claim 5, characterized in that: the pressure head (11) penetrates through the second plane mirror (35) and the center of the second vertical pipe (33) to extend out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122025731.XU CN216247577U (en) | 2021-08-25 | 2021-08-25 | Observation positioning device and detector of indentation mechanical property detector pressure head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122025731.XU CN216247577U (en) | 2021-08-25 | 2021-08-25 | Observation positioning device and detector of indentation mechanical property detector pressure head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216247577U true CN216247577U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122025731.XU Active CN216247577U (en) | 2021-08-25 | 2021-08-25 | Observation positioning device and detector of indentation mechanical property detector pressure head |
Country Status (1)
| Country | Link |
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| CN (1) | CN216247577U (en) |
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2021
- 2021-08-25 CN CN202122025731.XU patent/CN216247577U/en active Active
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Address after: 236000 No. 666, Chuangxin Avenue, high tech Zone, Hefei City, Anhui Province Patentee after: DATANG BOILER PRESSURE VESSEL EXAMINATION CENTER Co.,Ltd. Country or region after: China Patentee after: East China electric power test and Research Institute of China Datang Group Science and Technology Research Institute Co.,Ltd. Patentee after: NANJING ELECTRIC POWER PLANT OF DATANG Group Patentee after: GUANGDONG DATANG INTERNATIONAL CHAOZHOU POWER GENERATION Co.,Ltd. Patentee after: Datang Anhui Power Generation Co.,Ltd. Huainan Luohe Power Generation Branch Address before: 236000 No. 666, Chuangxin Avenue, high tech Zone, Hefei City, Anhui Province Patentee before: DATANG BOILER PRESSURE VESSEL EXAMINATION CENTER Co.,Ltd. Country or region before: China Patentee before: East China electric power test and Research Institute of China Datang Group Science and Technology Research Institute Co.,Ltd. Patentee before: NANJING ELECTRIC POWER PLANT OF DATANG Group Patentee before: GUANGDONG DATANG INTERNATIONAL CHAOZHOU POWER GENERATION Co.,Ltd. Patentee before: DATANG HUAINAN LUOHE POWER PLANT |
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Effective date of registration: 20240428 Address after: 236000 No. 666, Chuangxin Avenue, high tech Zone, Hefei City, Anhui Province Patentee after: DATANG BOILER PRESSURE VESSEL EXAMINATION CENTER Co.,Ltd. Country or region after: China Patentee after: East China electric power test and Research Institute of China Datang Group Science and Technology Research Institute Co.,Ltd. Patentee after: NANJING ELECTRIC POWER PLANT OF DATANG Group Patentee after: GUANGDONG DATANG INTERNATIONAL CHAOZHOU POWER GENERATION Co.,Ltd. Patentee after: Huainan Luohe Power Generation Co.,Ltd. Address before: 236000 No. 666, Chuangxin Avenue, high tech Zone, Hefei City, Anhui Province Patentee before: DATANG BOILER PRESSURE VESSEL EXAMINATION CENTER Co.,Ltd. Country or region before: China Patentee before: East China electric power test and Research Institute of China Datang Group Science and Technology Research Institute Co.,Ltd. Patentee before: NANJING ELECTRIC POWER PLANT OF DATANG Group Patentee before: GUANGDONG DATANG INTERNATIONAL CHAOZHOU POWER GENERATION Co.,Ltd. Patentee before: Datang Anhui Power Generation Co.,Ltd. Huainan Luohe Power Generation Branch |