Gate sleeve completion acceptance inspection tool and inspection method

Abstract

The present invention relates to the field of nuclear power plant construction technology, and in particular to a gate sleeve completion acceptance inspection tool and inspection method, comprising: a total station and an inspection tool, wherein the inspection tool comprises: a bar magnet, a reflector, and an angle steel, wherein the bar magnet is fixedly connected to the lower side of the outer wall of the vertical portion of the angle steel, two reflectors are provided, and the two reflectors are symmetrically arranged on the inner and outer sides of the horizontal portion of the angle steel, and the center line of the reflector coincides with the inner wall of the gate sleeve. The bar magnet is adsorbed and fixed on the outer wall of the gate sleeve, and the total station is used to measure the center position of the reflector. The present invention solves the concentricity problem of the gate sleeve, and only needs to set up the instrument once, and the station is flexible and the measurement is fast. The concentricity inspection tool has the advantages of being easy to use and having high measurement accuracy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear power plant construction, and particularly relates to a gate sleeve completion acceptance inspection tool and an inspection method. BACKGROUND

[0002] With the development of the national economy, the demand for energy is increasing, which makes the nuclear power construction have a broad development space and scale in China. The inner and outer shell gate sleeve pipe, as a channel connecting the inside and outside of the nuclear power plant, has a high concentricity requirement due to the sealing requirement. The non-synchronous construction of the double-shell structure makes the inspection of the inner and outer shell gate sleeve sleeve pipe a difficult problem. The gate sleeve sleeve pipe has multiple locations in the nuclear power construction, and the space position state is various. It is difficult to position the center of the gate sleeve sleeve pipe through total station measurement. At present, the position quality of the sleeve can only be inspected by measuring the center coordinate of the inner support of the gate, and the center position of the sleeve and the radius of the sleeve cannot be accurately determined, which has poor precision and affects the construction quality. SUMMARY

[0003] The purpose of the present application is to provide a gate sleeve completion acceptance inspection tool and an inspection method to solve the technical problems existing in the background art.

[0004] To achieve the above-mentioned purpose, the technical solution of the present application is as follows:

[0005] A gate sleeve completion acceptance inspection tool, comprising: a total station and an inspection tool, the inspection tool comprising: a bar magnet, a reflecting sheet and an angle steel, the bar magnet being fixedly connected to the outer wall of the vertical part of the angle steel, the reflecting sheet being provided with two, the two reflecting sheets being symmetrically arranged on the inner and outer sides of the horizontal part of the angle steel, the center line of the reflecting sheet coinciding with the inner wall of the gate sleeve, the bar magnet being adsorbed and fixed to the outer wall of the gate sleeve, and the total station being used for measuring the center position of the reflecting sheet.

[0006] Further, the angle steel is of L50x3 type and has a length of 30mm.

[0007] Further, the gate sleeve is composed of a gate sleeve inner shell and a gate sleeve outer shell.

[0008] A gate sleeve completion acceptance inspection method, applying a gate sleeve completion acceptance inspection tool, characterized in that it comprises the following steps:

[0009] Step one: erecting the total station at a position capable of viewing the four measurement openings of the gate sleeve inner shell and the gate sleeve outer shell, and ensuring that the total station can view two known measurement points;

[0010] Step two: viewing a known measurement point and measuring its three-dimensional coordinates, distance and orientation, and measuring the three-dimensional coordinates, distance and orientation of another known measurement point;

[0011] Step three: calculate the total station position coordinates according to the measured values in step two;

[0012] Step four: store the total station position coordinates in the total station;

[0013] Step five: set the orientation and elevation of the total station;

[0014] Step six: start measuring, install the inspection tool at a gate sleeve measuring point position on the inner shell of the gate sleeve or the inner wall of the gate sleeve outer shell, and attach the bar magnet in the inspection tool to the outer surface of the gate sleeve inner shell or the gate sleeve outer shell, with the angle steel perpendicular to the gate sleeve inner shell or the gate sleeve outer shell. Measure the three-dimensional coordinates of the center of the reflecting sheet, and measure the three-dimensional coordinate values of each gate sleeve measuring point in circumferential order;

[0015] Step seven: measure the three-dimensional coordinate values of each gate sleeve measuring point at the inner and outer openings of the gate sleeve inner shell and the gate sleeve outer shell in order;

[0016] Step eight: convert the point coordinate values measured in step seven for easy calculation;

[0017] Step nine: calculate the center coordinates of the gate sleeve inner shell and the gate sleeve outer shell. Calculate the position of the gate sleeve inner shell and the gate sleeve outer shell according to the converted coordinates, and substitute the theoretical radius into the calculation to obtain the center coordinates and the actual radius of each gate sleeve measuring point;

[0018] Step ten: take the two end points in the four calculation results as the reference line to calculate the coordinate deviation of the other two points, and obtain the overall deviation result.

[0019] Further, the conversion formula for converting the point coordinate values measured in step seven in step eight is as follows:

[0020] R = (X - X0)cosα + (Y - Y0)sinα

[0021] T = -(X - X0)sinα + (Y - Y0)cosα

[0022] h = H - H0

[0023] Where (X0, Y0) is the center coordinate of the reactor building, α is the included angle between the gate center axis and the center axis of the reactor building, H0 is the center elevation of the gate, and X, Y and H are the three-dimensional coordinate values of the gate sleeve measuring point.

[0024] Further, the calculation process of step ten is as follows:

[0025] h δ理论 = h 外 + (h里 -h 外 )D δ / D

[0026] T δ理论 =T 外 +(T 里 -T 外 )D δ / D

[0027] Δh δ =h δ -h δ理论

[0028] ΔT δ =T δ -T δ理论

[0029] Wherein, D is the length from the inner end point of the gate sleeve inner shell to the outer end point of the gate sleeve outer shell, D δ is the distance from the measuring point of the gate sleeve to the end point of the gate sleeve outer shell.

[0030] Further, the total station is erected in the gate sleeve or outside the gate sleeve, and the total station erection is freely set according to the position of the measured object and the known position of the measuring point.

[0031] Further, the inspection method is generally applicable to the gate sleeve with a larger pipe diameter.

[0032] Further, the measuring points of the gate sleeve do not need to be uniformly arranged, and the point position can be set according to the accuracy requirement.

[0033] Compared with the prior art, the beneficial effects of the present application are:

[0034] 1. High measurement accuracy, the gate sleeve cooperates with the inspection tool and the inner wall of the gate sleeve is coaxial, the center coordinates and the actual radius of the gate sleeve can be calculated through the measured coordinates, and the position of the center of the gate sleeve can be accurately determined.

[0035] 2. Convenient measurement, the whole inspection work can be completed by erecting the instrument once, and the uniformity of measurement is beneficially ensured.

[0036] 3. Simple structure, convenient processing, the inspection tool is composed of angle steel and reflecting sheet, can be quickly processed, and can be flexibly adjusted according to the wall thickness of the gate sleeve.

[0037] 4. The present application is reliable in quality, convenient and flexible in construction, high in precision, and in general, the gate sleeve completion acceptance inspection tool and the inspection method of the present application effectively ensure the positioning inspection accuracy, properly solve the problem of sectional installation inspection of the gate sleeve, optimize the construction progress, and solve the problem of spatial concentricity three-dimensional positioning of different wall gate sleeves. BRIEF DESCRIPTION OF DRAWINGS

[0038] Fig. 1 is the plan view of the gate sleeve of the present application;

[0039] Fig. 2 is the large-scale view of the gate sleeve of the present application;

[0040] Fig. 3 is the elevation view of the gate sleeve of the present application;

[0041] Fig. 4 is the schematic view of the inspection tool of the present application;

[0042] Fig. 5 is the schematic view of the detection working condition of the inspection tool of the present application.

[0043] The reference signs are: 1, inner shell of the gate sleeve; 2, outer shell of the gate sleeve; 3, concrete wall of the inner shell of the gate sleeve; 4, concrete wall of the outer shell of the gate sleeve; 5, total station instrument, 6, known measuring point; 7, measuring point of the gate sleeve; 8, inspection tool; 8-1, bar magnet; 8-2, reflecting sheet; 8-3, angle steel. DETAILED DESCRIPTION

[0044] The present application will be further described in detail below in combination with the drawings and examples.

[0045] Referring to Figs. 1-5 the drawing, a gate sleeve completion acceptance inspection method comprises the following steps:

[0046] Step one: total station instrument 5 is erected, and the erection position is located at the position capable of viewing the four measuring openings of the inner shell 1 and the outer shell 2 of the gate sleeve, and meanwhile the total station instrument 5 is in view with two known measuring points 6, which can be erected in the gate sleeve or outside the gate sleeve;

[0047] Step two: a known measuring point 6 SCA (3006.7233, 5990.5000) is viewed, and the three-dimensional coordinates, distance 16.8326 m and azimuth 12°13'26.2" of the known measuring point 6 SCA are measured; and the three-dimensional coordinates, distance 14.6395 m and azimuth 76°38'55.5" of another known measuring point 6 SCB (2989.8977, 5989.1610) are measured;

[0048] Step three: the total station instrument 5 coordinate SCP (2997.3170, 5976.5409) is calculated according to the measured values in step two;

[0049] Step four: the total station instrument 5 coordinate SCP is stored in the total station instrument 5;

[0050] Step five: the total station instrument 5 is set to direct SCA, and the elevation is set;

[0051] Step six: start measurement, install the checking tool 8 at a measuring point 7 on the inner wall of the gate sleeve inner shell 1 or the gate sleeve outer shell 2, stick the bar magnet 8-1 in the checking tool 8 to the outer surface of the gate sleeve inner shell 1 or the gate sleeve outer shell 2, and make the angle steel 8-3 vertical to the gate sleeve inner shell 1 or the gate sleeve outer shell 2, then measure the three-dimensional coordinates of the center of the reflecting sheet 8-2, and measure the three-dimensional coordinate values of each measuring point 7 in sequence;

[0052] Step seven: measure the three-dimensional coordinate values of each measuring point 7 on the inner opening and the outer opening of the gate sleeve inner shell 1 and the inner opening and the outer opening of the gate sleeve outer shell 2 in sequence;

[0053] Coordinate measurement result of the inner opening of the inner shell

[0054]

[0055] Coordinate measurement result of the outer opening of the inner shell

[0056]

[0057] Coordinate measurement result of the inner opening of the outer shell

[0058]

[0059]

[0060] Coordinate measurement result of the outer opening of the outer shell

[0061]

[0062] Step eight: convert the coordinate of the point measured in step seven;

[0063] R=(X-X0)cosα+(Y-Y0)sinα

[0064] T=-(X-X0)sinα+(Y-Y0)cosα

[0065] h=H-H0

[0066] Wherein X0=3000.000, Y0=5810.000, α=262°, H0=23.1500;

[0067] Coordinate conversion result of the inner opening of the inner shell

[0068]

[0069] Coordinate conversion result of the outer opening of the inner shell

[0070]

[0071]

[0072] Inner shell inner mouth coordinate conversion result

[0073]

[0074]

[0075] Outer shell inner mouth coordinate conversion result

[0076]

[0077] Step nine: calculate the center coordinates of the inner shell 1 and the outer shell 2 of the gate sleeve, and calculate the positions of the inner shell 1 and the outer shell 2 of the gate sleeve according to the converted coordinates, and the radius is calculated according to the theoretical radius (inner shell R 内 = 4.150m, outer shell R 外 = 4.200m), and the center coordinates and the actual radius of each measuring point 7 of the gate sleeve are obtained; inner shell inner mouth coordinate measurement result

[0078]

[0079] Inner shell outer mouth coordinate measurement result

[0080]

[0081]

[0082] Outer shell inner mouth coordinate measurement result

[0083]

[0084]

[0085] Outer shell outer mouth coordinate measurement result

[0086]

[0087] Step ten: taking two endpoints in the four points of the calculation result as the reference line, the coordinate deviation of the other two places is calculated, and the overall deviation result is obtained.

[0088] h δ理论 = h 外 +(h 里 -h 外 )D δ / D

[0089] T δ理论 = T 外 +(T 里 -T 外 )D δ / D

[0090] Δh δ = h δ - h δ理论

[0091] ΔT δ = T δ - T δ理论

[0092] This embodiment D AB = 1.15m, D AC = 1.33m, D = D AD = 3.43m,

[0093] h B理论 = -0.0006 + (-0.0032 - (-0.0006)) x 2.1 / 3.43 = -0.0022m

[0094] T B理论 = 0.0043 + (0.0051 - 0.0043) x 2.1 / 3.43 = 0.0048m

[0095] Δh B = 0.0027 - (-0.0022) = 0.0049m

[0096] ΔT B = 0.0039 - 0.0048 = -0.0009m

[0097] h C理论 = -0.0006 + (-0.0032 - (-0.0006)) x 2.28 / 3.43 = -0.0023m

[0098] T C理论 = 0.0043 + (0.0051 - 0.0043) x 2.28 / 3.43 = 0.0048m

[0099] Δh C = 0.0016 - (-0.0023) = 0.0039m

[0100] ΔT C = 0.0051 - 0.0048 = -0.0003m

[0101] Repeated practice has proved that the gate sleeve completion acceptance inspection tool and the inspection method of this embodiment have the following advantages:

[0102] 1. High measurement accuracy, the gate sleeve fitting inspection tool is coaxial with the inner wall of the gate sleeve, the center coordinates and the actual radius of the gate sleeve can be calculated through the measurement coordinates, and the position of the center of the gate sleeve can be accurately determined.

[0103] 2. Convenient measurement, the whole inspection work can be completed by erecting the instrument once, which is beneficial to ensure the uniformity of measurement.

[0104] 3. Simple structure, convenient processing, the inspection tool is composed of angle steel and reflecting sheet, can be quickly processed, and can be flexibly adjusted according to the wall thickness of the gate sleeve.

[0105] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Any skilled person in the art, without departing from the technical solution of the present application, according to the technical essence of the present application, any simple modification, equivalent replacement and improvement of the above embodiment, etc. still belongs to the protection scope of the technical solution of the present application.

Claims

1. A gate sleeve completion acceptance inspection method, using a gate sleeve completion acceptance inspection tool, characterized by: The gate sleeve completion acceptance inspection tool includes: a total station and an inspection tool, the inspection tool includes: a bar magnet, a reflective sheet and an angle steel, the bar magnet is fixedly connected to the lower side of the outer wall of the vertical portion of the angle steel, two reflective sheets are provided, and the two reflective sheets are symmetrically arranged on the inner and outer sides of the horizontal portion of the angle steel, the center line of the reflective sheet coincides with the inner wall of the gate sleeve, the bar magnet is adsorbed and fixed on the outer wall of the gate sleeve, and the total station is used to measure the center position of the reflective sheet; The gate sleeve completion acceptance inspection method comprises the following steps: Step 1: Set up the total station. The installation position should be such that the four measuring ports of the gate sleeve inner shell and the gate sleeve outer shell can be seen through. At the same time, the total station should have a line of sight with the two known measuring points. Step 2: Look back at a known measurement point, measure its three-dimensional coordinates, distance and orientation, and measure the three-dimensional coordinates, distance and orientation of another known measurement point; Step 3: Calculate the total station position coordinates based on the measured values ​​in step 2; Step 4: Store the total station position coordinates in the total station; Step 5: Set the orientation of the total station and set the elevation; Step 6: Start measuring. Install the inspection tool at a gate sleeve measuring point on the inner wall of the gate sleeve inner shell or the gate sleeve outer shell. Attach the bar magnet in the inspection tool to the outer surface of the gate sleeve inner shell or the gate sleeve outer shell. Place the angle steel perpendicular to the gate sleeve inner shell or the gate sleeve outer shell. Measure the three-dimensional coordinates of the center of the reflector. Measure the three-dimensional coordinate values ​​of each gate sleeve measuring point in circular order. Step 7: Measure the three-dimensional coordinate values ​​of the gate sleeve measuring points on the inner and outer openings of the gate sleeve inner shell, and the inner and outer openings of the gate sleeve outer shell in sequence; Step 8: Convert the point coordinates measured in step 7; Step 9: Calculate the center coordinates of the gate sleeve inner shell and the gate sleeve outer shell, calculate the positions of the gate sleeve inner shell and the gate sleeve outer shell according to the converted coordinates, substitute the radius into the theoretical radius, and obtain the center coordinates and the actual radius of each gate sleeve measuring point; Step 10: Take the two end points of the four calculated points as the baseline, calculate the coordinate deviations of the other two points, and get the overall deviation result.

2. A gate sleeve completion acceptance inspection method according to claim 1, characterized in that: The angle steel model is L50×3 and the length is 30 mm.

3. A gate sleeve completion acceptance inspection method according to claim 1, characterized in that: The gate sleeve consists of a gate sleeve inner shell and a gate sleeve outer shell.

4. A gate sleeve completion acceptance inspection method according to claim 1, characterized in that: The conversion formula for converting the point coordinates measured in step 7 in step 8 is as follows: R=(X-X0)cosα+(Y-Y0)sinα T=-(X-X0)sinα+(Y-Y0)cosα h=H-H0 Where (X0, Y0) is the coordinate of the center of the reactor building, α is the angle between the center axis of the gate and the center axis of the reactor building, H0 is the elevation of the gate center, and X, Y, and H are the three-dimensional coordinate values ​​of the gate sleeve measurement point, respectively.

5. A gate sleeve completion acceptance inspection method according to claim 1, characterized in that: The calculation process of step 10 is as follows: h δ理论 =h 外 +(h 里 -h 外 )D δ / D T δ理论 =T 外 +(T 里 -T 外 )D δ / D Δh δ =h δ -h δ理论 ΔT δ =T δ -T δ理论 Where D is the length from the inner end point of the gate sleeve inner shell to the outer end point of the gate sleeve outer shell, D δ The distance from the gate sleeve measurement point to the end point of the gate sleeve shell.

6. A gate sleeve completion acceptance inspection method according to claim 1, characterized in that: The total station is set up inside the gate sleeve or outside the gate sleeve.

7. A gate sleeve completion acceptance inspection method according to claim 1, characterized in that: The gate sleeve measuring points do not need to be evenly arranged.

Images