A pipeline thermal displacement measuring baffle device

Abstract

This invention pertains to a pipeline thermal displacement laser measurement reference plate device, specifically a pipeline thermal displacement measurement baffle device. It includes a measuring baffle, a set screw, a connecting block, a double-ended connecting screw, and a base. The measuring baffle is fixed to the connecting block by the set screw, and the connecting block is connected to the base by the double-ended connecting screw. Its advantages are: the thermal displacement laser measurement baffle device achieves reliable contact and fixation between the measuring baffle and the pipeline through a wedge-shaped groove on the base and two clamping holes; the free sliding of the measuring baffle within the rectangular groove of the connecting block allows for significant adjustment of the baffle's measurement range; and the cooperation of two locking nuts enables stepless adjustment of the baffle's measurement angle. Through these means, this invention ensures that the measuring baffle accurately reflects the pipeline's true thermal displacement regardless of the test object. Simultaneously, these means ensure that the measuring baffle remains perpendicular to the laser beam, thereby guaranteeing measurement accuracy.

Description

Technical Field

[0001] This invention pertains to a pipeline thermal displacement laser measurement reference plate device, specifically relating to a pipeline thermal displacement measurement baffle device. Background Technology

[0002] Due to their high temperature and high pressure characteristics, thermal power plant power pipelines often experience abnormally large thermal displacements. If the thermal displacement exceeds the standard, it may lead to excessive thermal stress in the pipeline, resulting in accidents such as pipeline deformation and rupture, misalignment and failure of pipeline supports and hangers. Therefore, the measurement of pipeline thermal displacement has become a hot topic.

[0003] The simplest method for measuring pipeline thermal displacement is to use a laser displacement detector. The principle is that the laser displacement detector focuses a light beam onto the target object. The target object reflects the beam back and focuses it onto a position-sensitive detector within the laser displacement detector, forming a light spot. The displacement can be determined by detecting the movement of this light spot as the target object moves.

[0004] like Figure 1 The diagram shows a schematic of a laser displacement monitoring device. The laser transmitter / receiver is a standard component, and the target object is the object to be measured, typically a flat plate. To ensure measurement accuracy, the target object must be perpendicular to the laser beam. For power plant pipelines, since most are high-temperature pipes with a layer of insulation and complex shapes, a laser displacement device cannot be used to directly measure this target object (power pipeline).

[0005] To completely solve this problem—that is, to ensure that the thermal displacement of power pipelines of any specification and form can be measured with the required accuracy—it is necessary to design a thermal displacement laser measurement baffle device that can be reliably connected to the target pipeline and whose horizontal position and angle of measurement can be infinitely adjusted to replace the target object in the laser displacement monitoring device. Summary of the Invention

[0006] The purpose of this invention is to provide a pipe thermal displacement measuring baffle device, which can be reliably connected to the target pipe, and the horizontal position and measuring angle can be infinitely adjusted.

[0007] The technical solution of the present invention is as follows: a pipe thermal displacement measuring baffle device, comprising a measuring baffle, a set screw, a connecting block, a double-ended connecting screw, and a base; the measuring baffle is fixed to the connecting block by the set screw, and the connecting block is connected to the base by the double-ended connecting screw.

[0008] A locking nut is connected between the connecting block and one end of the double-ended connecting screw, and a locking nut is connected between the double-ended connecting screw and the base.

[0009] The measuring baffle is a square thin plate.

[0010] The connecting block is a cuboid with a rectangular groove at the top for placing a measuring baffle, threaded holes on the side, and threaded holes at the bottom.

[0011] The locking nut consists of two parts, upper and lower, both used in conjunction with the double-ended connecting screw.

[0012] The two ends of the double-ended connecting screw are threaded, and the middle smooth part is knurled.

[0013] The upper part of the base has a threaded hole for fixing the double-ended threaded rod, and two rectangular through holes for clamping are opened on its long side. The lower part of the base has a wedge groove to ensure stable contact between the base and the test pipe.

[0014] The upper half of the base is cylindrical after a portion of the material has been removed.

[0015] A large portion of the wedge-shaped groove at the bottom of the base is cut off, leaving only a small portion on each side.

[0016] The beneficial effects of this invention are as follows: the thermal displacement laser measuring baffle device achieves reliable contact and fixation between the measuring baffle and the pipeline through the wedge-shaped groove on the base and the two clamping holes; the free sliding of the measuring baffle in the rectangular groove of the connecting block enables a large adjustment of the baffle's measuring range; and the cooperation of the upper and lower locking nuts enables stepless adjustment of the baffle's measuring angle. Through the above means, this invention can ensure that the measuring baffle truly reflects the actual thermal displacement of the pipeline, regardless of the test object. At the same time, the above means ensure that the measuring baffle remains perpendicular to the laser beam, thereby ensuring measurement accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a laser displacement monitoring device;

[0018] Figure 2 The present invention provides a structural diagram of a pipe thermal displacement measuring baffle device.

[0019] Figure 3 for Figure 2 Diagram of set screws in the diagram;

[0020] Figure 4 for Figure 2 Connecting block diagram in;

[0021] Figure 5 for Figure 2 The base diagram in the image.

[0022] In the diagram: 1 Measuring baffle, 2 Set screw, 3 Connecting block, 4 Locking nut, 5 Double-ended connecting screw, 6 Base, 11 Target object, 12 Laser transmitter / receiver device. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 2 As shown, a pipe thermal displacement measuring baffle device includes a measuring baffle 1, a set screw 2, a connecting block 3, a locking nut 4, a double-ended connecting screw 5, and a base 6. The measuring baffle 1 is fixed to the connecting block 3 by the set screw 2, and the connecting block 3 is connected to the base 6 by the double-ended connecting screw 5. A locking nut 4 is connected between the connecting block 3 and one end of the double-ended connecting screw 5, and a locking nut 4 is also connected between the double-ended connecting screw 5 and the base 6.

[0025] The measuring baffle 1 is a square thin plate with a length * width of 100mm * 100mm and a thickness of 3mm. By sliding the rectangular groove of the connecting block 3, the horizontal range of the measuring position can be infinitely adjusted.

[0026] The set screw 2 is modified from a standard set screw part and is used in conjunction with the set screw hole of the connecting block. When the measuring baffle moves to the appropriate position, tightening the set screw can achieve fixation and positioning.

[0027] The connecting block 3 is a cuboid with a rectangular groove at the top for placing a measuring baffle and a threaded hole on the side for tightening a set screw. When the measuring baffle moves along the rectangular groove to the appropriate position, tightening the set screw will achieve fixation and positioning. The threaded hole at the bottom is for fixing a double-ended connecting threaded rod.

[0028] The locking nut 4 has two parts, upper and lower, both used in conjunction with the double-ended connecting screw 5. When the connecting block 3 is rotated to the appropriate position, tightening the upper locking nut will fix the angle position of the connecting block. When the base is rotated to the appropriate position, tightening the lower locking nut will fix the angle position of the base. By using the upper and lower locking nuts together, the measuring baffle can be fixed at any angle position.

[0029] The double-ended connecting screw 5 is used to connect the connecting block 3 and the base 6. The two ends of the double-ended connecting screw 5 are machined with threads of appropriate length as required, and the middle smooth part is machined with knurled pattern. By cooperating with the upper and lower locking nuts, the measuring baffle can be fixed at any angle position.

[0030] The base 6 has a threaded hole on its upper part for fixing the double-ended threaded rod, and two rectangular through holes for clamping on its long side. The lower part of the base has a wedge-shaped groove to ensure stable contact between the base and the test pipe. In order to reduce weight, part of the material of the upper part of the base is removed to make it cylindrical, and a large part of the bottom wedge-shaped groove is cut off, leaving only a small part on each side.

[0031] The measuring baffle 1 is used to receive the laser beam emitted by the laser displacement detector. The set screw 2 is used to fix and position the horizontal position of the measuring baffle. The connecting block 3 is used to provide a horizontal sliding rectangular groove and an angle adjustment threaded hole for the measuring baffle. The locking nut 4, together with the double-ended connecting threaded rod 5, is used to adjust and fix the angle position of the measuring baffle. The base 6 is used to fix the whole assembly on the test object.

[0032] The working principle of this invention is as follows:

[0033] First, thread two clamps through the two rectangular holes in the base. Second, fix the base onto the test object. Third, screw one end of the double-ended threaded rod with the lock nut into the corresponding threaded hole in the base (do not tighten, just make sure it is not loose). Fourth, thread the connecting block onto the other end of the double-ended threaded rod (do not tighten, just make sure it is not loose). Fifth, install the measuring baffle into the rectangular groove of the connecting block, slide the measuring baffle to the appropriate position, and tighten the two set screws to the appropriate degree. Sixth, rotate the measuring baffle to the appropriate angle and tighten the upper and lower lock nuts to the appropriate degree.

[0034] The present invention has the following advantages:

[0035] (1) The horizontal position of the measuring baffle can be adjusted over a wide range, and the measuring angle position of the baffle can be adjusted steplessly, thereby ensuring the measurement accuracy;

[0036] (2) The wedge groove on the base and the two clamp holes can be used to achieve reliable fixing and positioning, thereby ensuring that the measuring baffle can truly reflect the thermal displacement of the measured pipe.

[0037] (3) The positioning method of the set screw and lock nut not only ensures a significant expansion of the measurement range, but also ensures a stable and reliable connection.

[0038] (4) Easy to install and disassemble, reusable, and low cost.

[0039] (5) Simple structure, easy to use and highly reliable.

Claims

1. A pipe thermal displacement measuring baffle device, characterized in that: It includes a measuring baffle, a set screw, a connecting block, a double-ended connecting screw, and a base; the measuring baffle is fixed to the connecting block by the set screw, and the connecting block is connected to the base by the double-ended connecting screw. A locking nut is connected between the connecting block and one end of the double-ended connecting screw, and a locking nut is connected between the double-ended connecting screw and the base; The measuring baffle is a square thin plate; The connecting block is a cuboid in shape, with a rectangular groove for placing a measuring baffle on the top, threaded holes on the side, and threaded holes on the bottom. The locking nut consists of two parts, upper and lower, both used in conjunction with the double-ended connecting screw. The two ends of the double-ended connecting screw are threaded, and the middle smooth part is knurled. The upper part of the base has a threaded hole for fixing the double-ended threaded rod, and the long side has two rectangular through holes for clamping. The lower part of the base has a wedge groove to ensure stable contact between the base and the test pipe.

2. The pipe thermal displacement measuring baffle device as described in claim 1, characterized in that: The upper half of the base is cylindrical after a portion of the material has been removed.

3. The pipe thermal displacement measuring baffle device as described in claim 1, characterized in that: A large portion of the wedge-shaped groove at the bottom of the base is cut off, leaving only a small portion on each side.

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