CN219064363U

CN219064363U - Three-way displacement state monitoring device for high-temperature high-pressure pipeline of thermal power plant

Info

Publication number: CN219064363U
Application number: CN202223379574.3U
Authority: CN
Inventors: 陈敦炳; 叶盛春; 廖志强; 张何境; 郭延军; 李海洋
Original assignee: Fujian Huadian Shaowu Energy Co ltd; Huadian Electric Power Research Institute Co Ltd
Current assignee: Fujian Huadian Shaowu Energy Co ltd; Huadian Electric Power Research Institute Co Ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-05-23
Anticipated expiration: 2032-12-16

Abstract

The utility model relates to a device for monitoring a three-way displacement state of a high-temperature high-pressure pipeline of a thermal power plant, and belongs to the technical field of pipeline displacement state monitoring. The utility model comprises a high-temperature high-pressure pipeline, a guide frame fixed pipe clamp, a guide frame, a displacement pointer, a displacement scale plate adjustable bracket and a fixed bracket, wherein the guide frame fixed pipe clamp is arranged on the outer side of the high-temperature high-pressure pipeline, the guide frame of the guide frame fixed pipe clamp is provided with the displacement pointer, the displacement pointer points to the displacement scale plate, the displacement scale plate is fixed on the displacement scale plate adjustable bracket, the displacement scale plate adjustable bracket is connected with the fixed bracket, and the fixed bracket is fixed at the steel erection position of a boiler room or a turbine room. According to the utility model, the three-way displacement of the high-temperature and high-pressure pipeline can be monitored under complex field conditions by adjusting the positions of the displacement pointer and the displacement scale plate, and the miniaturization of the displacement pointer and the displacement scale plate is beneficial to the light weight, standardized production and cost reduction of the device.

Description

Three-way displacement state monitoring device for high-temperature high-pressure pipeline of thermal power plant

Technical Field

The utility model relates to a monitoring device, in particular to a device for monitoring a three-way displacement state of a high-temperature high-pressure pipeline of a thermal power plant, and belongs to the technical field of pipeline displacement state monitoring.

Background

The high-temperature and high-pressure pipeline of the thermal power plant is an important pipeline for guaranteeing the safe operation of the thermal power unit, in particular to a main steam pipeline, a reheat steam pipeline and a high-pressure water supply pipeline, and has the characteristics of high working parameters, large cold and hot state displacement and high safety requirements, and once accidents occur, the life and property safety of operators on duty can be directly threatened. The monitoring of the three-way displacement of the pipeline is a key measure for knowing whether the pipeline is normally expanded with heat and contracted with cold and preventing the pipeline displacement from being blocked to generate local overstress, and is also an important technical measure for guaranteeing the operation safety of the high-temperature high-pressure pipeline.

Therefore, the high-temperature and high-pressure pipeline three-way displacement state monitoring device of the thermal power plant, which is convenient to install, adjustable and high in displacement adaptability, is designed, so that the service displacement state of the high-temperature and high-pressure pipeline of the thermal power plant can be accurately monitored, and an important technical guarantee is provided for the safe operation of the high-temperature and high-pressure pipeline and the thermal power unit.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide the device for monitoring the three-way displacement state of the high-temperature and high-pressure pipeline of the thermal power plant, which has the advantages of reasonable structural design, safety, reliability, convenient installation, adjustability and strong displacement adaptability.

The utility model solves the problems by adopting the following technical scheme: this thermal power plant's high temperature high pressure pipeline three-dimensional displacement state monitoring devices, including the fixed pipe clamp of high temperature high pressure pipeline, the fixed pipe clamp of guide frame is installed in the high temperature high pressure pipeline outside, its characterized in that: the guide frame assembly displacement pointer of the guide frame fixing pipe clamp is characterized by further comprising a guide frame, a displacement pointer, a displacement scale plate adjustable support and a fixing support, wherein the displacement pointer points to the displacement scale plate, the displacement scale plate is fixed on the displacement scale plate adjustable support, the displacement scale plate adjustable support is connected with the fixing support, and the fixing support is fixed at the steel frame erection position of the boiler room or the steam turbine room.

Preferably, the high-temperature high-pressure pipeline fixing clamp further comprises a fixing bolt and nut assembly of the pipe clamp, and the high-temperature high-pressure pipeline and the guide frame fixing pipe clamp are fixed through the fixing bolt and nut assembly of the pipe clamp.

Preferably, the utility model further comprises a displacement pointer pressing plate and a screw for fixing the pressing plate, wherein the displacement pointer and the guide frame are fixed with the screw for fixing the pressing plate through the displacement pointer pressing plate.

Preferably, the utility model further comprises a displacement scale plate fixing cross screw, and the displacement scale plate is fixed on the displacement scale plate adjustable bracket through the displacement scale plate fixing cross screw.

Preferably, the utility model further comprises a nut and an adjustable bracket fixing bolt, and the displacement scale plate adjustable bracket is connected with the fixed bracket through the nut and the adjustable bracket fixing bolt.

Preferably, the displacement scale plate is made of aluminum alloy plates with the thickness of 0.8-1.0 mm; the displacement pointer is made of aluminum alloy.

Compared with the prior art, the utility model has the following advantages and effects: the whole structure is reasonable in design, safe, reliable, convenient to install, adjustable and high in displacement adaptability; the device can use the three-way displacement pointer and the displacement scale plate with smaller specification and size to realize the three-way displacement state monitoring of various high-temperature and high-pressure pipelines of the thermal power plant, is favorable for reducing the weight of the displacement monitoring device, is favorable for the standardized production of single specification and size of the displacement pointer and the displacement scale plate, and reduces the manufacturing cost.

Drawings

FIG. 1 is a schematic view of a three-way displacement monitoring device according to an embodiment of the present utility model.

FIG. 2 is a schematic diagram of a three-way displacement coordinate system according to an embodiment of the present utility model.

FIG. 3 is a schematic view of an adjustable bracket for a displacement scale plate according to an embodiment of the present utility model.

FIG. 4 is an enlarged schematic view of the embodiment of the utility model in the direction A-A in FIG. 1.

FIG. 5 is an enlarged view of the B-B direction in FIG. 3 according to an embodiment of the present utility model.

FIG. 6 is an enlarged view of the C-C direction in FIG. 3 according to an embodiment of the present utility model.

FIG. 7 is an enlarged view of the view of FIG. 3 in accordance with an embodiment of the present utility model.

In the figure: the high-temperature high-pressure pipeline 1, a guide frame fixing pipe clamp 2, a pipe clamp fixing bolt and nut assembly 3, a guide frame 4, a displacement pointer pressing plate 5, a screw 6 for fixing the pressing plate, a displacement pointer 7, a displacement scale plate 8, a displacement scale plate adjustable bracket 9, a displacement scale plate fixing cross screw 10, a nut 11, a fixing bracket 12 and an adjustable bracket fixing bolt 13.

Detailed Description

The present utility model will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present utility model and not limited to the following examples.

Examples

Referring to fig. 1 to 7, the device for monitoring the three-way displacement state of the high-temperature and high-pressure pipeline of the thermal power plant mainly comprises a high-temperature and high-pressure pipeline 1, a guide frame fixing pipe clamp 2, a guide frame 4, a displacement pointer 7, a displacement scale plate 8, a displacement scale plate adjustable bracket 9 and a fixing bracket 12; the guide frame is arranged on the outer side of the high-temperature and high-pressure pipeline 1 to fix the pipe clamp 2, the pipe clamp 2 is clamped and fixed on a specified position of the pipeline through the fixing bolt and nut assembly 3 of the pipe clamp, and the guide frame 4 of the guide frame to fix the pipe clamp 2 is assembled with the displacement pointer 7 and is fixed by the screw 6 of the displacement pointer pressing plate 5 and the fixing pressing plate.

The displacement pointer 7 in the embodiment points to the displacement scale plate 8, the displacement scale plate 8 is fixed on the displacement scale plate adjustable bracket 9 through a displacement scale plate fixing cross screw 10, the displacement scale plate adjustable bracket 9 is connected with a fixed bracket 12 through a matched nut 11 and an adjustable bracket fixing bolt 13, and the fixed bracket 12 is welded on the steel frame setting position of the boiler room or the turbine room.

The displacement scale plate 8 in this embodiment is made of an aluminum alloy plate having a thickness of 0.8 to 1.0 mm.

The displacement pointer 7 in this embodiment is made of aluminum alloy, the displacement pointer 7 in the OR direction is used for monitoring displacements in the X direction and the Z direction, and the displacement pointer 7 in the OS direction is used for monitoring displacements in the Y direction and the Z direction.

The displacement pointer pressing plate 5 in the embodiment can adjust the relative distance between the displacement pointer 7 and the displacement scale plate 8 by loosening the screw 6 of the fixed pressing plate so as to adapt to the displacement changes of different high-temperature and high-pressure pipelines and realize accurate reading and marking of indication data.

The adjustable bracket fixing bolt 13 in the embodiment can conveniently and rapidly adjust the position of the displacement scale plate 8 in the plane where the displacement scale plate is located by loosening the nut 11, and the adjustable quantity in two directions at least reaches 100 mm so as to meet the three-way displacement requirements of different high-temperature high-pressure pipelines and eliminate the adverse effects that the indication position of the displacement pointer exceeds the range of the displacement scale plate and the like caused by on-site installation deviation.

The operation process of the high-temperature high-pressure pipeline three-way displacement state monitoring device of the thermal power plant of the embodiment is as follows: the guide frame fixing pipe clamp 2 is firstly clamped and fixed with the high-temperature high-pressure pipeline 1 through a bolt and nut assembly 3 of the pipe clamp, then a displacement pointer 7 is fixed with the guide frame 4 through a displacement pointer pressing plate 5 and a screw 6 of the fixing pressing plate, as shown in fig. 1, and the structures of the displacement pointer pressing plate 5, the screw 6 of the fixing pressing plate and the guide frame 4 in fig. 1 are enlarged and schematically shown in fig. 4.

The displacement scale plate 8 and the displacement scale plate adjustable bracket 9 are fixed through the displacement scale plate fixing cross screw 10, the displacement scale plate adjustable bracket 9 and the fixing bracket 12 are connected and fixed through the adjustable bracket fixing bolt 13 and the nut 11, the structure is shown in fig. 3, 5, 6 and 7, and the plane dimension is omitted.

The installed displacement scale plate adjustable devices are respectively arranged in the OR direction and the OS direction of the displacement pointer 7 in the figure 1, and the tip end of the displacement pointer 7 is vertical to the plane of the displacement scale plate 8; the displacement pointer 7 is used for monitoring the displacement of the high-temperature and high-pressure pipeline in the X direction and the Z direction in the OR direction, and the displacement pointer 7 is used for monitoring the displacement of the high-temperature and high-pressure pipeline in the Y direction and the Z direction in the OS direction, and the three-way displacement coordinate system is shown in fig. 2.

From the above description, those skilled in the art will be able to practice.

In addition, it should be noted that the specific embodiments described in the present specification may vary from part to part, from name to name, etc., and the above description in the present specification is merely illustrative of the structure of the present utility model. All equivalent or simple changes of the structure, characteristics and principle according to the inventive concept are included in the protection scope of the present patent. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a thermal power plant's high temperature high pressure pipeline three-dimensional displacement state monitoring devices, includes high temperature high pressure pipeline (1), fixed pipe clamp of leading truck (2), its characterized in that are installed in high temperature high pressure pipeline (1) outside: still include leading truck (4), displacement pointer (7), displacement scale board (8), displacement scale board adjustable support (9) and fixed bolster (12), leading truck fixed pipe clamp (2) leading truck (4) assembly displacement pointer (7), this displacement pointer (7) directional displacement scale board (8), displacement scale board (8) are fixed in on displacement scale board adjustable support (9), displacement scale board adjustable support (9) are connected with fixed bolster (12), and fixed bolster (12) are fixed in boiler room or steam turbine room steel frame setting up the position.

2. The high-temperature and high-pressure pipeline three-way displacement state monitoring device of a thermal power plant according to claim 1, wherein: the high-temperature high-pressure pipeline fixing clamp comprises a guide frame, and is characterized by further comprising a fixing bolt and nut assembly (3) of the pipe clamp, wherein the high-temperature high-pressure pipeline (1) and the guide frame fixing pipe clamp (2) are fixed through the fixing bolt and nut assembly (3) of the pipe clamp.

3. The high-temperature and high-pressure pipeline three-way displacement state monitoring device of a thermal power plant according to claim 1, wherein: the device also comprises a displacement pointer pressing plate (5) and a screw (6) for fixing the pressing plate, wherein the displacement pointer (7) and the guide frame (4) are fixed with the screw (6) for fixing the pressing plate through the displacement pointer pressing plate (5).

4. The high-temperature and high-pressure pipeline three-way displacement state monitoring device of a thermal power plant according to claim 1, wherein: the adjustable support is characterized by further comprising a displacement scale plate fixing cross screw (10), wherein the displacement scale plate (8) is fixed on the displacement scale plate adjustable support (9) through the displacement scale plate fixing cross screw (10).

5. The high-temperature and high-pressure pipeline three-way displacement state monitoring device of a thermal power plant according to claim 1, wherein: the adjustable support is characterized by further comprising a nut (11) and an adjustable support fixing bolt (13), wherein the displacement scale plate adjustable support (9) is connected with the fixed support (12) through the matched nut (11) and the adjustable support fixing bolt (13).

6. The high-temperature and high-pressure pipeline three-way displacement state monitoring device of a thermal power plant according to claim 1, wherein: the displacement scale plate (8) is made of aluminum alloy plates with the thickness of 0.8-1.0 mm; the displacement pointer (7) is made of aluminum alloy.