JPS6022616A - Formation of drawing for equipment model - Google Patents

Abstract

PURPOSE:To form easily and efficiently a drawing by irradiating X-rays or radiations to the plural points of an equipment model, detecting the transmitted X-rays or radiations, detecting sectional images, determining a three-dimensional image from the sectional images and forming the drawing. CONSTITUTION:An equipment model 5 is moved at a prescribed pitch and the sectional images in the respective positions (a), (b), (c), (d) are determined. If there is no change in the positions of pipings 5a, 5b, 5c, 5d like the sectional image in the position (a) shown in the figure (a) and the sectional image in the position (b) shown in the figure (b), judgement is made that the pipings 5a, 5b, 5c, 5d are straight between said positions. If there is a change in the positions of the pipings 5a, 5b, 5c, 5d like between the position (b) and the position (c) shown in the figure or between the position (c) and the position (d) shown in the figure (d), judgement is made that the pipings are curved between these positions. The sectional images are formed at the much finer pitch for the parts judged to have the curving in the pipings and the shapes and arrangement of the pipings 5a, 5b, 5c, 5d are discriminated. Processing such as rotation of the images, etc. is performed if necessary and the plan view, side view, etc. of the model 5 are formed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for creating drawings of equipment models for nuclear power generation equipment, thermal power generation equipment, chemical plants, etc.

Generally, when designing complex equipment such as the one above, each device,
In order to examine and decide the arrangement of piping, etc., a precise scale model, ie, equipment model, made of, for example, synthetic resin is manufactured. Once the arrangement of each device and piping is determined, a drawing of the arrangement of each device and piping is created based on this equipment model.

By the way, in order to create the above drawings, conventionally the dimensions of each part of the main equipment model were measured using 1,000 square meters, and the drawings were created from these dimensions. There was a problem that required a large amount of man-hours to create.

In order to eliminate such problems, we have developed a method that measures the dimensions of each part by mechanically contacting the equipment model with a 1 liter fixed robot, and measures the dimensions by optically reading the position of each equipment and piping on the equipment model. Attempts are being made to develop a method of irradiating an equipment model with ultrasonic waves and measuring the position of each device, piping, etc. from the reflected waves. However, set (1
iii. The model is small and complex, and the equipment and piping are heavy.
16, making it difficult to measure and put the above-mentioned methods into practical use.

The present invention has been made based on the above circumstances, and its purpose is to provide a method for easily and efficiently creating drawings of 4 types of installation blocks that are repeated 4'41.

That is, the present invention irradiates multiple locations of an equipment model with Xm radiation, detects the A drawing is created by creating a three-dimensional image of the equipment model 712 from the cross-sectional image.Therefore, even if the installation model has complex and repeated parts, it is possible to accurately detect the loads such as each equipment and piping. It is possible to easily and efficiently create drawings of equipment models.

An embodiment of the present invention will be described below with reference to the drawings. First, the apparatus used in the method of the present invention will be explained with reference to FIG. In the figure, 1 is the xHc T device. This X-ray CT
A moving table 3 is inserted through the tunnel 2 of the apparatus 1, and the moving table 3 is supported by a support table 4 and is configured to move within the tunnel 2. And this mobile platform 3
An equipment model 5 is placed on top. This equipment model 5 is made of synthetic resin material, and has a layout T? , 5 a r 5
It consists of b + 5 c + 5 d and various devices (not shown). Around the tunnel 2 there is an X-ray tube 6 and a group of X-ray detectors 7 installed opposite the X-ray tube 6. 6 and x 14 detector R'i''7 is configured to rotate around the center of the tunnel 2.

In this X-ray CT apparatus 1, an X-ray tube 6 and an X-ray detector group 7 rotate around the tunnel 2, and X-rays are irradiated from the X&J tube 6 toward the equipment lrg model. The configuration is such that the X-rays transmitted through the atmosphere are detected by the X-ray detector group 7. Reference numeral 8 denotes a model movement control device, which is configured to control the movement of the moving table 3. 9 is a CT signal processing circuit which receives a signal from the X-ray detector I: 67, creates a cross-sectional image of the equipment model 5, and stores it. The signals stored in the OCT signal processing circuit 9 are then sent to a three-dimensional image display device 10. Jin's 3D image processing device 111
0 creates a three-dimensional image of the equipment model 5 from each cross-sectional image,
It is configured to automatically create a plan view, side view, etc. of the equipment model 5 by sending the number (g) to the X-Yf lock 11, etc.

Note that FIG. 2 shows an example of a cross-sectional image of this equipment model king, where the straight portion of the piping 5a g 5 b + 5c r 5 d is shown in a cross section, and the rising portion is shown in a longitudinal section.

Next, an embodiment of the method of the present invention using such an apparatus will be described. First, as shown in FIG. 3, the equipment model 5 is moved at a predetermined pitch, and cross-sectional images of each position of a + b ICHd are taken. As shown in the cross-sectional image at position a shown in FIG. 4(a) and the cross-sectional image at position b shown in FIG. b+5 C+ 5 If there is no change in the position of d, the pipes 5a * 5b * 5 e
+5b is determined to be linear. The piping 5ar is between the position b and the position C shown in Figure 4(e), or between the position C and the 4th position 171 (shown in Figure 4(d)).
If there is a change in the position of 5b+5cr5d, it is determined that there is a bend in the pipe between these positions. Then, cross-sectional images are created at even narrower pitches for the parts of the pipe where it is determined that there is a bend, and the pipes 5a r 5b r5c, 5
Determine the shape and arrangement of d. In addition, in the parts where the piping is straight or bent at an angle, the vertical cross section of the piping is
In areas where the piping is tilted, the cross section of the piping becomes (4 circular), so the bent shape of the piping can be determined from this.Then, based on these cross-sectional images, the equipment model is created. Create a tertiary image of 5 and use i11ji as necessary.
A plan view of the equipment model 5 after processing such as 4M rotation,
Create a side view, etc. In this embodiment, the above-mentioned operations are performed automatically by the above-mentioned apparatus. In addition, the pitch and other details of the cross-sectional images are based on the shape of the equipment model,
Set according to the size, etc. Also, radiation therapy may be used instead of X-rays.

As described above, the present invention irradiates X-rays or radiation to multiple locations inside the equipment model, detects the X-rays or radiation transmitted through the model, and detects cross-sectional images at multiple locations of this installation + iii. However, a three-dimensional drawing of the equipment model is created from these numbers. Therefore, the drawing of the equipment model can be created easily and efficiently.

[Brief explanation of drawings]

Fig. 1 is a schematic configuration diagram of an apparatus for carrying out the method of the present invention, Fig. 2 is a diagram illustrating a cross-sectional image, Fig. 3 is a diagram showing the position of a cross-sectional image of an equipment model, and Figs. 4 (a) to 4). (d) is a cross-sectional image at each position.ノ...X-ray CT device, 5...Equipment model, 6...X
ray tube, 7... X-ray detector group, 9... signal processing circuit,
10... Three-dimensional image processing display device. Applicant's sub-agent Patent attorney Takeshi Suzue Scarlet Procedures Amendment 1995 Old, OJi, 23 i1 '1'1 Director General of the Office Kazuo Wakasugi 1, -'13
Display items! (Te Application No. 58-1305Ci6 No. 2, Name of the invention Method for creating drawings of equipment models l Relationship with the Nagisa case involving FdL+ Patent K (1 person (620) Mitsubishi Heavy Industries, Ltd. 11, sub-agent (i, i'+li city target Meiji 1 rock 7 tili positive content E!A+tljl sha(') I"-5 Kanden 14 lines []
to [-white L'j:i' ” ”! 5 b, 5
c, 51) J is [)! 'I', 'j'
i' 5a +5b, 5c, 5d".

Claims (1)

[Claims] a step of irradiating X-rays or radiation to a plurality of locations on the equipment model; a step of detecting cross-sectional images of the multiple locations of the equipment model by detecting the X-rays or radiation transmitted through the equipment model;
A method for creating a drawing of an equipment model, comprising the step of creating a drawing of the equipment model by creating a three-dimensional image of the equipment model from the plurality of cross-sectional images.