CN110608844A - Pipe gallery module center of gravity detection system - Google Patents

Abstract

The invention discloses a system for detecting the center of gravity of a pipe gallery module, which belongs to the field of hoisting equipment, and comprises a load cell, a hydraulic jack, a support frame, a signal processing circuit, an RS485 serial bus and computer software. By reasonably arranging multiple hydraulic jacks and weight sensors under the pipe gallery module, the entire pipe gallery module is jacked up, and then the center of gravity of the pipe gallery module is calculated according to the relative position coordinates and load value of each load cell. The position of the center of gravity and the total weight of the pipe gallery module can be actually measured on site. The measurement results are accurate and can be used as an important parameter index of the pipe gallery module to avoid possible inclination, local overload and structural failure of the pipe gallery module during traction, hoisting and assembly. Unstable conditions can effectively ensure the smooth progress of on-site hoisting and integration of pipe gallery modules.

Description

Pipe gallery module center of gravity detection system

technical field

The invention belongs to the field of lifting equipment, and in particular relates to a system for detecting the center of gravity of a pipe gallery module.

Background technique

At present, the pipe gallery is widely used in various factories in the petrochemical industry. Many pipes are gathered together and arranged along the equipment or plant, mainly in the air, supported by supports to form a corridor of pipes. In order to improve the construction quality of pipe gallery projects, reduce safety accidents, and shorten the construction period, many pipe gallery projects are divided into several pipe gallery modules for design and construction. The main components of the pipe gallery module can be designed and manufactured in the workshop, delivered to the site in the form of modules and assembled. The specific weight and the position of the center of gravity of the pipe gallery module are obtained through theoretical calculation during design, which is not very accurate. Before on-site assembly, actual measurement is required. Otherwise, when pulling, hoisting and assembling the pipe gallery module, there will be problems Inclination, local overload and structural instability may occur, which is not conducive to the long-term use and maintenance of the pipe gallery, and there are potential safety hazards.

At present, it is difficult to measure the center of gravity of the pipe gallery module on site. The main reason is to use the finite element method for numerical analysis and simulation during design, and there is a lack of research on the actual measurement method on site. Therefore, the accuracy of the center of gravity position obtained is low. In order to ensure the smooth progress of the on-site hoisting and connection of the pipe gallery modules, it is urgent to provide a new type of center of gravity detection system for the pipe gallery modules to solve the above problems.

Contents of the invention

The purpose of the present invention is to provide a detection system for the center of gravity of the pipe gallery module. By rationally arranging a plurality of hydraulic jacks and weight sensors under the pipe gallery module, the entire pipe gallery module is jacked up, and then according to the relative position coordinates of each load cell and the load value to calculate the center of gravity position of the pipe gallery module.

In order to achieve the above object, the present invention adopts the following technical solutions: a pipe gallery module center of gravity detection system, including a load cell, a hydraulic jack, a support frame, a signal processing circuit, an RS485 serial bus and computer software. The support frame is used to support the pipe gallery module before detection, and the load cell is installed on the top of the hydraulic jack to form a detection unit. According to the specifications of the pipe gallery module, it is generally arranged symmetrically under the pipe gallery module for 10 ～28 detection units, each detection unit has its own relative position coordinates, when the detection starts, the hydraulic jacks of all detection units simultaneously lift up the pipe gallery module, so that the pipe gallery module rises from the support frame and breaks away from the support frame At this time, the load cell on each detection unit sends the weight information to the computer through the RS485 serial bus, and the computer software calculates the center of gravity and position of the pipe gallery module according to the relative position coordinates and load value of each detection unit gross weight.

The beneficial effects of the present invention are: the position of the center of gravity and the total weight of the pipe gallery module can be actually measured on site, and the measurement result is accurate, which can be used as an important parameter index of the pipe gallery module, so as to avoid possible occurrences of the pipe gallery module during traction, hoisting and combination. The inclination, local overload and structural instability effectively ensure the smooth progress of the pipe gallery module hoisting and integration on site.

Description of drawings

Figure 1 is a schematic structural diagram of the detection system for the center of gravity of the pipe gallery module;

Fig. 2 is the parameter setting interface of the computer software in the pipe gallery module center of gravity detection system;

Figure 3 is the main interface of the computer software in the center of gravity detection system of the pipe gallery module.

Detailed ways

The present invention is further described in conjunction with accompanying drawing 1～3:

A pipe gallery module center of gravity detection system, its structure is shown in Figure 1, including a pipe gallery module 1, a support frame 2, a load cell 3 and a hydraulic jack 4, the pipe gallery module 1 is placed on the On the support frame 2, the support frame 2 bears the weight of the entire pipe gallery module 1; the load cell 3 is installed on the top of the hydraulic jack 4, and each load cell 3 and hydraulic jack 4 constitute a detection unit , according to the different specifications of the pipe gallery module, generally 10 to 28 detection units are placed under the pipe gallery module 1; before the detection starts, the load cell 3 is under the pipe gallery module 1, but not in contact with the pipe gallery module 1 , so all the weight of the pipe gallery module 1 is borne by the support frame 2; after the detection starts, the hydraulic jack 4 pushes the load cell 3 to move upwards, gradually contacts the pipe gallery module, and lifts the pipe gallery module 1 from the support The frame 2 is lifted for a short distance, at this time the pipe gallery module 1 is out of contact with the support frame 2, and the weight of the entire pipe gallery module 1 is completely loaded on each load cell 3; each load cell 3 has signal processing inside The circuit can convert the weight information into a digital signal, and then transmit it to the computer 6 through the RS485 serial bus 5. The computer software in the computer can calculate the weight of the pipe gallery module 1 according to the position coordinates and weight information of each detection unit. Total weight and center of gravity position coordinates.

The parameter setting interface of the computer software in the center of gravity detection system of the pipe gallery module is shown in Figure 2. In this interface, it is mainly necessary to set the reference origin coordinates of the entire pipe gallery module in window 7; Size sets the length and width of the pipe gallery module; set the X and Y coordinates of each detection unit (load cell and hydraulic jack) in window 9, and this coordinate is relative to the origin coordinate in window 7 as the reference point.

The main interface of the computer software in the center of gravity detection system of the pipe gallery module is shown in Figure 3. In this interface, window 10 displays the real-time weight and load values of each detection unit; window 11 displays the calculated center of gravity coordinates, which coordinates The relative coordinates are based on the coordinates of the origin set in window 7 of Figure 2 as the reference point; window 12 shows the total weight of the entire pipe gallery module; window 13 simulates the position of each detection unit and the center of gravity in the form of a simulated animation .

In summary, the present invention can provide a detection system for the center of gravity of the pipe gallery module, which can actually measure the center of gravity position and total weight of the pipe gallery module on site, and the measurement results are accurate, which can be used as an important parameter index of the pipe gallery module to avoid the The possible inclination, local overload and structural instability during the traction, hoisting and assembly of the modules effectively ensure the smooth progress of the on-site hoisting and integration of the pipe gallery modules.

Claims (1)

1. A pipe gallery module gravity center detection system comprises a pipe gallery module (1), a support frame (2), a weighing sensor (3) and a hydraulic jack (4), wherein the pipe gallery module (1) is placed on the support frame (2) before gravity center detection is carried out, and the support frame (2) bears the weight of the whole pipe gallery module (1); the weighing sensors (3) are arranged at the top of the hydraulic jack (4), each weighing sensor (3) and the hydraulic jack (4) form a detection unit, and 10-28 detection units are generally placed below the pipe gallery module (1) according to different specifications of the pipe gallery module; before the detection starts, the weighing sensor (3) is below the pipe rack module (1) but is not in contact with the pipe rack module (1), so that all the weight of the pipe rack module (1) is borne by the support frame (2); after the detection is started, the hydraulic jack (4) pushes the weighing sensors (3) to move upwards to gradually contact with the pipe gallery module, the pipe gallery module (1) is jacked up a short distance from the support frame (2), the pipe gallery module (1) is separated from the support frame (2) at the moment, and the weight of the whole pipe gallery module (1) is completely loaded on each weighing sensor (3); each weighing sensor (3) is internally provided with a signal processing circuit, weight information can be converted into digital signals and then transmitted to a computer (6) through an RS485 serial bus (5), and computer software in the computer can obtain the total weight and the gravity center position coordinate of the pipe gallery module (1) through calculation according to the position coordinate and the weight information of each detection unit.