CN217384156U

CN217384156U - Horizontal metal can top plate capacity calibration device

Info

Publication number: CN217384156U
Application number: CN202220978904.1U
Authority: CN
Inventors: 郭豫宁
Original assignee: Dalian Institute Of Measurement Inspection And Testing Co ltd
Current assignee: Dalian Institute Of Measurement Inspection And Testing Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-09-06
Anticipated expiration: 2032-04-26

Abstract

The utility model belongs to the technical field of horizontal metallic tank capacity verification/calibrating device, a horizontal metallic tank roof capacity verification device is disclosed. Comprises a casing ruler and a laser range finder; the sleeve ruler comprises a graduated tube and a sleeve; the graduated tube and the sleeve are both hollow tubes, and are connected through a sleeve pipe; the graduated tube is positioned in the sleeve and can move in the sleeve in a telescopic way when being stretched; the end of the sleeve is a fixed end, and the graduated tube is a telescopic end; the periphery of the sleeve pipe is sleeved with a connecting fixing piece, and a laser range finder is fixedly arranged on the connecting fixing piece; a positioning and calibrating nut is arranged at the sleeve joint for calibration; the tail end of the graduated tube is provided with a measuring head A, and the tail end of the sleeve is provided with a measuring head B. The direct measurement of the height in the horizontal metal tank top plate is realized, the detection efficiency is improved, the error caused by the indirect measurement of personnel is reduced, and the measurement accuracy is improved.

Description

Horizontal metal can top plate capacity calibration device

Technical Field

The utility model belongs to the technical field of horizontal metallic tank capacity verification/calibrating device, the utility model relates to a horizontal metallic tank roof capacity verification device. In particular to a set of detection device capable of measuring, detecting and calibrating the capacity of a top plate of a horizontal metal tank.

Background

The basis for horizontal canister capacity metrological verification/calibration is the JJG266-2018 horizontal canister capacity verification protocol, in which the standard equipment specified for verifying the capacity of the roof is steel tape, wooden ruler and thin wire. The outer perimeter is measured at the position, close to the welding seam, of the top plate through the steel tape, and the outer height of the top plate is measured through the cooperation of the wood ruler and the thin line. Thereby realizing the detection of the capacity of the top plate.

According to the requirements of JJG266-2018, a horizontal metal tank is provided with two top plates which are respectively arranged on two sides of the horizontal metal tank. First, the position of the vertex is determined, and when the vertex is marked, the vertex is marked by the mark. When no vertex mark exists, the intersection point of the welding lines (or the extensions) of the top plate is taken as a vertex. And when no welding seam exists, determining points through measurement. In the measuring step, two wooden rulers are firstly used at the end part of the straight cylinder and tightly attached to the wall of the tank along the axial direction of the cylinder through a measuring point, so that the two wooden rulers are parallel to the axial line of the cylinder and are farthest away. And then winding the extending end of the wood ruler with a thin line to enable the thin line to be perpendicular to the wood ruler, and measuring the distance between the two measuring points and the thin line. The shortest distance e to the thin line is measured with a straight steel ruler, and the point is marked as the vertex. And finally, subtracting the distance e from the thin line to the top plate peak from the average value of the readings on the two sides to obtain the outer height of the top plate at one end. The top inner height is higher than the difference between the top outer height and the plate thickness of the top plate.

The cooperation of the personnel for measuring and detecting the height of the top plate by the existing equipment and method wastes time and labor and has low efficiency; and the horizontal metal tank is generally buried underground, which is not beneficial to the implementation of an external measurement method. Personnel participate in indirect measurement, reading and calculation, and have large human errors.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming not enough among the above-mentioned background art, provide a horizontal metallic tank roof capacity calibration device, realize high direct measurement in the horizontal metallic tank roof, improve detection efficiency, reduce the error that personnel indirect measurement introduced, improve the measuring accuracy.

The utility model provides a technical scheme that its technical problem adopted is: a horizontal metal tank top plate capacity calibration device comprises a casing pipe ruler and a laser range finder; the sleeve ruler comprises a graduated tube and a sleeve; the graduated tube and the sleeve are both hollow tubes, and are connected through a sleeve pipe; the graduated tube is positioned in the sleeve and can move in the sleeve in a telescopic way when being stretched; the end of the sleeve is a fixed end, and the graduated tube is a telescopic end; the periphery of the sleeve pipe is sleeved with a connecting fixing piece, and a laser range finder is fixedly arranged on the connecting fixing piece; a positioning and calibrating nut is arranged at the sleeve joint for calibration; the tail end of the graduated tube is provided with a measuring head A, and the tail end of the sleeve is provided with a measuring head B.

Furthermore, the scales on the graduated tube are marked as scale pastes;

furthermore, the outer wall of the sleeve can be provided with scales or fixed lengths;

furthermore, the length of the measuring head A is consistent with that of the measuring head B, and the material is consistent;

further, the connection fixing piece is fastened at the sleeve joint.

Compared with the prior art, the utility model beneficial effect who has is:

the utility model provides a horizontal metal can roof capacity calibration device compares with prior art and has following advantage:

1. the utility model provides a school device is examined to horizontal metal can roof capacity, simple structure, convenient operation reduces the cost of labor, saves intensity of labour, improves work efficiency.

2. When the height of a top plate of a horizontal metal tank is detected by the conventional equipment, indirect measurement is needed, and only external measurement is needed, so that physical power is consumed, and the limitation of the external environment is met. The horizontal metal tank top plate capacity calibration device can realize direct measurement and is not limited by external environment.

3. The direct measurement avoids the influence of personnel on the detection result, and the detection data is more accurate and real.

Drawings

The invention will be further described with reference to the following figures and examples:

FIG. 1 is a schematic diagram of the horizontal metal tank top plate capacity calibration device of the present invention.

FIG. 2 is a schematic diagram of a prior art method for measuring the height of a horizontal metal can top.

In the figure, 1, a measuring head A, 2, a graduated tube, 3, a measuring head B, 4, a sleeve pipe, 5, a positioning and calibrating nut, 6, a sleeve pipe, 7, a connecting and fixing piece, 8, a laser range finder, 9, a wood ruler A, 10, a thin line and 11, a wood ruler B are arranged.

Detailed Description

The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following embodiments.

Example 1

A horizontal metal tank roof capacity calibration device is shown in figure 1 and comprises a casing ruler and a laser range finder 8; the sleeve ruler comprises a graduated tube 2 and a sleeve 6; the graduated tube 2 and the sleeve 6 are both hollow tubes, and the graduated tube 2 and the sleeve 6 are connected through a sleeve 4; the graduated tube 2 is positioned in the sleeve 6 when being stretched and retracted and can move in the sleeve 6 in a stretching and retracting way; the end of the sleeve 6 is a fixed end, and the graduated tube 2 is a telescopic end; the periphery of the sleeve pipe 4 is sleeved with a connecting fixing piece 7, and a laser range finder 8 is fixedly arranged on the connecting fixing piece 7; a positioning and calibrating nut 5 is arranged at the position of the sleeve pipe 4 for calibration; the tail end of the graduated tube 2 is provided with a measuring head A1, and the tail end of the sleeve 6 is provided with a measuring head B3.

Furthermore, the scale marks on the scale tube 2 are scale pastes;

furthermore, the outer wall of the sleeve 6 can be provided with scales or fixed lengths;

furthermore, the length of the measuring head A1 is consistent with that of the measuring head B3, and the material is consistent;

further, the connection fixture 7 is fastened at the ferrule 4.

During measurement, the horizontal metal tank top plate capacity calibration device is arranged in the horizontal metal tank, the measuring head B3 is arranged at one end in the vertical direction in the horizontal metal tank and extends out of one end of the graduated tube until the measuring head A1 contacts with the other end in the vertical direction in the horizontal metal tank, and the laser distance measuring instrument 8 starts to detect and measure the inner height.

Compared with the traditional measuring technology, the method has obvious advancement, is designed aiming at the defects in the height measuring process of the top plate of the horizontal metal tank, and changes the accuracy of the measured data ensured by the traditional measuring method and the laser range finder.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A horizontal metal can top plate capacity calibration device is characterized by comprising a casing ruler and a laser range finder (8); the sleeve ruler comprises a graduated tube (2) and a sleeve (6); the graduated tube (2) and the sleeve (6) are both hollow tubes, and the graduated tube (2) and the sleeve (6) are connected through a sleeve joint tube (4); the graduated tube (2) is positioned in the sleeve (6) when being stretched and retracted and can move in the sleeve (6) in a stretching and retracting way; the end of the sleeve (6) is a fixed end, and the graduated tube (2) is a telescopic end; the periphery of the sleeve pipe (4) is sleeved with a connecting fixing piece (7), and a laser range finder (8) is fixedly arranged on the connecting fixing piece (7); a positioning and calibrating nut (5) is arranged at the sleeve pipe (4) for calibration; the tail end of the graduated tube (2) is provided with a measuring head A (1), and the tail end of the sleeve (6) is provided with a measuring head B (3).

2. The horizontal metal can top plate capacity calibration device as claimed in claim 1, wherein the scale marks on the scale tube (2) are scale stickers.

3. The horizontal metal can top plate capacity calibration device as claimed in claim 2, wherein the outer wall of the sleeve (6) can be provided with scales or fixed lengths.

4. The horizontal metal can top plate capacity calibration device according to claim 3, wherein the gauge head A (1) and the gauge head B (3) are identical in length and material.

5. The top plate capacity calibrating device for horizontal metal cans according to claim 3, wherein the connecting fixture (7) is fastened to the sleeve (4).