GB/T 15181-1994 Spherical metal tank volume calibration method (circumference method)
Some standard content:
IpC 621. 642
National Standard of the People's Republic of China
GB/T 15181—94
Capacity calibration of spherical metaltanks Strapping method
Promulgated on August 23, 1994
State Bureau of Technical Supervision
Implemented on June 1, 1995
National Standard of the People's Republic of China
Capacity calibration of spherical metaltanks Strapping method
1 Subject content and applicable range
This standard specifies the measurement method and calculation steps for calibrating the nominal capacity of spherical metaltanks using the strapping method. This standard applies to newly built or screened spherical metal tubes that do not contain liquid. This standard does not apply to double-layer spherical metal tubes. 2 Reference standards GB12337 Steel spherical metal tubes GB/T 15181-94 GB/13235.1 Vertical two-dimensional metal tubes for oil products (using ruler method) [B1323R Technical conditions for oil dipstick steel ruler for petroleum 3 Terms and terms 3.1 Ball diameter: The horizontal circle passing through the center point of the tube (not reversed) 32 Deflection: The horizontal circle measured by the deviation method, 3.3 Deflection, also known as the vertical distance of the circumference of the circumference. 3.4 Equatorial radius When measuring the equatorial radius of the plate by the optical descender method, recalibrate and project to the geospatial point after being tangent to the cableway. 3.5 Zone plate: the general name of the plate divided by the horizontal weld of the body (see Figure 1). 3.6 Vertical section: the cross section of the plate generated by the center point of the head tank. 3-7 Pole: the midpoint of the plate.
3.8 Total height of the pin: the height of the end multiplied by the center line 3. 9 M point: the point where the total height is measured away from the center line of the chain. 4 Calibration requirements
4.1 The acceptance of the shape delivery shall meet the requirements of GB1233. 4.2 The calibration shall be carried out after the dust pressure test is qualified and before the body insulation. 4.3 The ground under the fin shall be flat, without shadows and avoid obstacles. 5 Safety measures
All relevant safety regulations shall be strictly observed, and the following points shall also be noted. 5.1 The measurement shall be carried out by means of hand channels or movable ladders, etc., and the calibration work shall be carried out smoothly. 5.? The calibration personnel must wear protective equipment. 5.3 The electrical equipment used must meet the requirements of the corresponding fire prevention level. Approved by the National Technical Supervision Commission on August 23, 1994 and implemented on June 1, 1995
6 Measuring equipment
6.1 Steel ruler, shall meet the requirements of GB/T 13236. 6.2 The dipstick shall meet the requirements of GP13236. GB/T 151B1-94
6.3 Dynamometer: 0~10V, minimum scale greater than 2N. 6.4 Magnetic base: vertical force not less than 538N
6.5 Optical hand calibrator: optical verticality not less than 1/29000. Level, accuracy not less than "S" section,
Chu ultrasonic thickness gauge: minimum resolution 0.1mm Theodolite: accuracy not less than DJ level.
6.9 The appearance: in the shape of a gate, with needle-like ends. 6.10 Flat plate for reporting images: can be made, size not less than 250mm×250mm×5mm6.11 Full scale: -30~·50, minimum resolution not less than 0.5℃, 6, 12 Ruler rod.
6.13 Ruler
7 Measurement
All measured numbers are recorded to the decimal point: Measurement record table B. .7 Also measure the circumference or semi-circle
7.7.1 Direct measurement of length ||t t||7.1.1.1 The structure type with different structures (as shown in Figure 1) is 1/2 of the vertical length between the red chasing plate or the upper and lower two pole collecting plates. A national scale rail is drawn with a colored pen.
Three tank bodies
1—upper pole plate 3 East core plate:
3 lower suction plate
4-plate body
Medical 1 spherical metal plug structure type
1—upper pole plate-2—upper plate 1
8-level: 4-lower garbage plate
: Five sound energy body
1—upper suction plate 2—overflow plate
3—also plate=4 lower plate 1
5-lower plate
GB/T 15181—94
7.1.1.2 Move the steel ruler along the track for a short circle, check and control the tape to make it close to the lower edge of the track, then tighten the tape, fix one end with a magnetic base to prevent it from sliding, and apply a force to the tape with a pin at the other end, and read the value that is subtracted from the zero point of the steel ruler. 7.1.1.3 The ruler should be opened at 510m, and then the second measurement should be carried out in accordance with 7.1.1.2. The difference between the values measured by the ruler twice shall not exceed 1/10000 of the technical mean. If it is within the range of difference, the technical mean of the two consecutive measurements shall be taken as the future measurement C\: (m). The value measured by the ruler shall be updated until the values of the two consecutive measurements meet the requirements of the difference. 7.1.2 Indirect measurement of circumference
If the height of the support is too high, the circumference of the road can be calculated by measuring the deviation from the center of the circumference, m). 7.1.2.1 Confirm the position of the track according to 1.1.1.1. 7.1.22 At 103-300m above the support end, the height of the track will be determined by the network (blood), and the arc length can also be used to represent the section (as shown in Figure 2) Www.bzxZ.net
1 Draw a line with a pressure ruler
7.1.2.3 At the determined measuring position, measure the equatorial circumference C (mm) according to 7.1.1.2.7.1.1.3. 7.1.3 Measurement of track radius
If there are no circumference rulers at the equator and the track position, the optical plumb line method can be used to measure the track and diameter. 7.1.3.1 Inspection of the receiver: Level the optical vertical instrument, align the upper vertical instrument’s collimator with the horizontal ruler at the lower part of the body, and align the sight line of the lower vertical instrument with the horizontal ruler placed on the ground. Use the values of the two horizontal rulers in the eyepiece to measure respectively. Then rotate the optical vertical instrument 180° to get the desired value of the horizontal ruler. If the difference between the two readings of the same horizontal ruler is not greater than 1/4, it means that the vertical performance of the instrument is good. Otherwise, the original source should be found out and re-inspected.
7.1.3.2 Projection of the center of the body: Level the optical vertical instrument at the lower center of the body, align the upper vertical instrument’s collimator with the lower point of the body (manhole or the center of the kidney), project the sight line of the lower vertical instrument to the ground, and roughly determine the projection position of the body center point 0 on the ground. At the same time, place the projection board with white paper on it.
b. Set A, B, and C as measuring points along the circumference of the ground with a radius of about 120 degrees. Use longitude and latitude at each point to make the horizontal surface tangent at two points (the three measuring points or the surface may not be combined). Draw three projection lines AA, 3
GE/T 15181-94
H, and CC on the color plate in the direction of /2, and intersect them into a triangle. Take the intersection point of the triangle angle bisector as the center point of the chain body on the ground and the shadow point 0 (see Figure 3).
了.1-3.3 The shadow and uniform distribution of the red wave on the ground along the end body require eight vertical measurement stations (as shown in Figure 4! 1
7.1.3.4 Install an optical plumb line at each vertical measurement station, make the corresponding sight line of the upper plumb line tangent to the line of sight, fix the center potential shadow point O of the steel ruler on the equipotential line double standard, and press the other end of the horizontal power station. Apply tension to the ruler tape about 1m behind the measurement station. After heating, read the value of the steel country on the standard of the optical plumb line, and measure O——B——3——Or
-B in turn, and the horizontal distance of the points (as shown in Figure 5) is taken as the arithmetic average of them as RCB/T15181-94
1 Optical plumb line 12—pin ruler 13—untangent point 4—home tangent point 5—pin Position line: 5-projection plate 7-draw the shadow point 07..3.5 Measure the temperature of the air and the temperature of the interior at the same time as measuring the equatorial radius. 7.? The remaining length of the country
7.2.1 Put the tape from the sugar page through the upper and lower crossing points to make a full circle. Use a ruler to adjust the tape to make it vertical. Add a square at each end of the tape, read the value corresponding to the zero mark, and measure the tape twice with the original starting point of the ruler. The difference between the two measured values shall not exceed one ten-thousandth of their arithmetic mean. Take the total arithmetic mean as the circumference C of the first country. 7.2-2 Intersect the first line at the pole to form a 90" circle. Measure the circumference C of the second vertical line according to 7.2.1. 7.2.3 If there is an obstacle at the opposite point of the plate, it should be avoided and connected 7.2.1, 7.2.2. When measuring away from the pole, the upper and lower measuring points selected must be in the opposite direction of the upper and lower forging points and have the same distance. 7.2.4 If it is difficult to measure the circumference with a ruler, the method of segmented measurement can be used, that is, measure the length of the obstacle section and the length of the two arcs symmetrical on the left and right of the obstacle section to obtain the length (the length is obtained by dividing the length by the “gate” shape of the large ruler and the small ruler, and then take the length of the obstacle section and measure it by tracing on the surface of the medium.
7.3 Measurement of span correction
While measuring the circumference, a running gauge should be used to measure the span correction of the coal seam or debris passed by the ruler. 7.3.1 Take the obstacle as the center, use the span gauge to calculate the length of the obstacle, and then select the ruler section that is close to the ruler, and then use the fixed length running gauge to measure the length without obstacle. The difference between the arc length without obstacle and the length with obstacle is the “crossing correction value”. 7.4 Measurement of total height
GK/T15181—9 4
7.4.1 At the upper point of the cloth, put in the total amount of closed tape 1, and read it accurately to 1mm:74.2 If there is an obstacle at the upper point and it cannot be measured directly, you can transfer the starting point to the unobstructed point M, and measure a line H (mm) at point M (as shown in Figure 6). Use a measuring tape to distinguish the horizontal distance from point M to the center line of the cloth or the upper and lower points) (mm), and read it accurately to 1mm.
1-upper:2-m point
1.5 Plate measurement base
sequence and hook tape measure, measure the thickness S (rr and vertical length mr) of each area of the plate along the blast wall, and read it to 0.1mm. The length is estimated to be .5m. Find the weighted average value of the plate area (mm, Sh.s.)
7.6 The measurement rate of the height correction value from the zero position of the liquid level gauge scale to the bottom point of the blast (see Appendix A). 7.7 Operation and recording of the ball tank when it is used (MP!). 8. Calculation of net perimeter 1.1 Calculation of net perimeter c. (mm) of the inscribed circle: C. - c. fa I aL, directly measured perimeter, mm; yuan 1,2,3); 3 Chinese ruler plus positive value + mm GB/T15181-94 Chinese ruler minus positive value, T, and the result is retained to one decimal place. 1.2 Calculation of net circle length C. (mm) of the inscribed circle by indirect measurement: G, = /c= +(2*h3*
And.G=C+AL,TaL,
In the formula, center. The deviation after correction represents the circumference of the track. The deviation is also the measured circumference m
—the vertical distance from the circumference of the track to the track, m. The calculation result should retain one decimal place.
B.2 Calculation of inner diameter
. 2.1 Calculation of inner diameter of the track. (ram) F>
In the formula, St is the equatorial thickness, mm.
Ⅱ The calculation result should retain one decimal place.
B.2.2 Calculation of equatorial inner diameter D, (nm) when measuring the radius of the drum cableway by optical plumb line method:, - 2:Rt1 + e(, - 1, + AL,1 - 25 Where: - the average value of the equatorial radius, add the temperature of the ruler (take the temperature of the tank bottom as appropriate): - the humidity (the temperature is the arithmetic mean of the temperature inside the tank), - the linear relationship of the ruler (take 11.5×10- for the ruler and 14×10- for the stainless steel ruler), - the result of the shear is rounded to one decimal place
8.2.3 Calculation of the vertical inside diameter 12, (tm: 7, =
Where: S - the weighted thickness of the tank, tua calculation is rounded to one decimal place
8. 3 Calculation of the total internal height F
8.3.1 The shear value per inch measured from the starting point is:
H =H +a-+
The vertical quotient of the inner diameter measured by the extreme point on the end, mm,: the maximum tolerance (calculate the oil dipstick value in grams)... The calculation result is an integer mm
8-3-2 The calculation of the auxiliary time at point M:
++（3)
CBT15181-94
H -- y(H, +aL)+ 4-+ a(, -t>? And: I The vertical height of the chain measured at point M, rmM point to the center line of the sugar inner multiplication point (or the upper and lower center points) is the average water center height, ugly m. A negative station depth is connected to an integer mn1.
84 Empty end (20C total narrow calculation
n, +P,+D×.10-e
respectively and two lines of the medical circle have light +m. .
let the width of the clear mining sandalwood pounds to
8.5 engineering performance calculation
8.5.1 calculate the total density of the increase in the protection 4V(dm\) medicine calculation: AW =
where, a -,, the maximum average value of the wear.mm;
P.--potential standard ball working pressure, MPE.; steel field modulus (28×10.MPa
let the joint ore
BE.? The total room root V.(dm) calculation D
v,= v+aV
calculation to the different fine code to dm
8.5.3 bearing! Calculation of partial volume dm>: -V
Wu: · Total height.cm
H, the height of the calculated partial volume, cm. The calculation result shall be accurate to dm
9 Report
According to the attached requirements C, a calibration technical report shall be issued.
10 Total uncertainty
The total uncertainty of the calibration result of this standard is less than 10.2 (5% multiple level). 9
(12)
CA/T15:81—94
Appendix A
Measurement of the height correction value from zero position of liquid level gauge to zero point of short bottom (additional parts)
For spherical net tank, the liquid level in the tank is usually determined by observing the scale of the level gauge across the plate screen: Usually, the zero point of the liquid level gauge scale and the zero point of the bottom of the tank are not on the same horizontal plane. In order to quickly obtain the liquid level in the tank determined by the level gauge scale and the actual accumulation in the tank, it is necessary to measure the height of the zero point of the level gauge scale and the bottom of the tank to a positive value. The height of the level gauge inside the tank is measured and the height correction value is added.
Use a level to measure the height H of the level gauge scale to the horizontal line of sight, and the height H from the center point 0 of the tank outer courtyard to the water half line of sight (as shown in A1). Calculate the height stop value H (mm) according to formula (A): =H, (HS)
wherein; H
is the height from the zero position of the level gauge scale to the horizontal sight line, mm: the height from the center point of the outer part to the horizontal gauge line, E:.9
the thickness of the lower pole, rmE:
[one-level scale position.-level only
elastic stretch
you make choice
GR/T 15181-94
you are correct"
national heart
firm use
++:+++-
medical and health group
electric degree victory
lower can promise
GB/T16181-94)
7.6 Measurement of the correction value of the height from the zero position of the liquid level gauge to the bottom point is shown in Figure A.
7.7 Operation record
Record the T position of the ball tank when it is used (MP!). 8. Calculation of the net perimeter
1.1 Calculation of the net perimeter c. (mm) of the inscribed net circle: C. - c. fa I aL
Wu Zhong,
Directly measured surface perimeter, mm; yuan 1,2,3); 3
Chinese ruler false positive value + mm
GB/T15181-94
The sum of the Chinese ruler minus the static positive value, T,
Calculate and retain one decimal place in the result
R.1.2 Calculation of the net circle length C. (mm) by indirect measurement: G, = /c= +(2*h3*
And.G=C+AL,TaL,
In the formula, center. The deviation after correction represents the circumference of the track. The deviation is also the measured circumference m
—the vertical distance from the circumference of the track to the track, m. The calculation result should retain one decimal place.
B.2 Calculation of inner diameter
. 2.1 Calculation of inner diameter of the track. (ram) F>
In the formula, St is the equatorial thickness, mm.
Ⅱ The calculation result should retain one decimal place.
B.2.2 Calculation of equatorial inner diameter D, (nm) when measuring the radius of the drum cableway by optical plumb line method:, - 2:Rt1 + e(, - 1, + AL,1 - 25 Where: - the average value of the equatorial radius, add the temperature of the ruler (take the temperature of the tank bottom as appropriate): - the humidity (the temperature is the arithmetic mean of the temperature inside the tank), - the linear relationship of the ruler (take 11.5×10- for the ruler and 14×10- for the stainless steel ruler), - the result of the shear is rounded to one decimal place
8.2.3 Calculation of the vertical inside diameter 12, (tm: 7, =
Where: S - the weighted thickness of the tank, tua calculation is rounded to one decimal place
8. 3 Calculation of the total internal height F
8.3.1 The shear value per inch measured from the starting point is:
H =H +a-+
The vertical quotient of the inner diameter measured by the extreme point on the end, mm,: the maximum tolerance (calculate the oil dipstick value in grams)... The calculation result is an integer mm
8-3-2 The calculation of the auxiliary time at point M:
++（3)
CBT15181-94
H -- y(H, +aL)+ 4-+ a(, -t>? And: I The vertical height of the chain measured at point M, rmM point to the center line of the sugar inner multiplication point (or the upper and lower center points) is the average water center height, ugly m. A negative station depth is connected to an integer mn1.
84 Empty end (20C total narrow calculation
n, +P,+D×.10-e
respectively and two lines of the medical circle have light +m. .
let the width of the clear mining sandalwood pounds to
8.5 engineering performance calculation
8.5.1 calculate the total density of the increase in the protection 4V(dm\) medicine calculation: AW =
where, a -,, the maximum average value of the wear.mm;
P.--potential standard ball working pressure, MPE.; steel field modulus (28×10.MPa
let the joint ore
BE.? The total room root V.(dm) calculation D
v,= v+aV
calculation to the different fine code to dm
8.5.3 bearing! Calculation of partial volume dm>: -V
Wu: · Total height.cm
H, the height of the calculated partial volume, cm. The calculation result shall be accurate to dm
9 Report
According to the attached requirements C, a calibration technical report shall be issued.
10 Total uncertainty
The total uncertainty of the calibration result of this standard is less than 10.2 (5% multiple level). 9
(12)
CA/T15:81—94
Appendix A
Measurement of the height correction value from zero position of liquid level gauge to zero point of short bottom (additional parts)
For spherical net tank, the liquid level in the tank is usually determined by observing the scale of the level gauge across the plate screen: Usually, the zero point of the liquid level gauge scale and the zero point of the bottom of the tank are not on the same horizontal plane. In order to quickly obtain the liquid level in the tank determined by the level gauge scale and the actual accumulation in the tank, it is necessary to measure the height of the zero point of the level gauge scale and the bottom of the tank to a positive value. The height of the level gauge inside the tank is measured and the height correction value is added.
Use a level to measure the height H of the level gauge scale to the horizontal line of sight, and the height H from the center point 0 of the tank outer courtyard to the water half line of sight (as shown in A1). Calculate the height stop value H (mm) according to formula (A): =H, (HS)
wherein; H
is the height from the zero position of the level gauge scale to the horizontal sight line, mm: the height from the center point of the outer part to the horizontal gauge line, E:.9
the thickness of the lower pole, rmE:
[one-level scale position.-level only
elastic stretch
you make choice
GR/T 15181-94
you are correct"
national heart
firm use
++:+++-
medical and health group
electric degree victory
lower can promise
GB/T16181-94)
7.6 Measurement of the correction value of the height from the zero position of the liquid level gauge to the bottom point is shown in Figure A.
7.7 Operation record
Record the T position of the ball tank when it is used (MP!). 8. Calculation of the net perimeter
1.1 Calculation of the net perimeter c. (mm) of the inscribed net circle: C. - c. fa I aL
Wu Zhong,
Directly measured surface perimeter, mm; yuan 1,2,3); 3
Chinese ruler false positive value + mm
GB/T15181-94
The sum of the Chinese ruler minus the static positive value, T,
Calculate and retain one decimal place in the result
R.1.2 Calculation of the net circle length C. (mm) by indirect measurement: G, = /c= +(2*h3*
And.G=C+AL,TaL,
In the formula, center. The deviation after correction represents the circumference of the track. The deviation is also the measured circumference m
—the vertical distance from the circumference of the track to the track, m. The calculation result should retain one decimal place.
B.2 Calculation of inner diameter
. 2.1 Calculation of inner diameter of the track. (ram) F>
In the formula, St is the equatorial thickness, mm.
Ⅱ The calculation result should retain one decimal place.
B.2.2 Calculation of equatorial inner diameter D, (nm) when measuring the radius of the drum cableway by optical plumb line method:, - 2:Rt1 + e(, - 1, + AL,1 - 25 Where: - the average value of the equatorial radius, add the temperature of the ruler (take the temperature of the tank bottom as appropriate): - the humidity (the temperature is the arithmetic mean of the temperature inside the tank), - the linear relationship of the ruler (take 11.5×10- for the ruler and 14×10- for the stainless steel ruler), - the result of the shear is rounded to one decimal place
8.2.3 Calculation of the vertical inside diameter 12, (tm: 7, =
Where: S - the weighted thickness of the tank, tua calculation is rounded to one decimal place
8. 3 Calculation of the total internal height F
8.3.1 The shear value per inch measured from the starting point is:
H =H +a-+
The vertical quotient of the inner diameter measured by the extreme point on the end, mm,: the maximum tolerance (calculate the oil dipstick value in grams)... The calculation result is an integer mm
8-3-2 The calculation of the auxiliary time at point M:
++（3)
CBT15181-94
H -- y(H, +aL)+ 4-+ a(, -t>? And: I The vertical height of the chain measured at point M, rmM point to the center line of the sugar inner multiplication point (or the upper and lower center points) is the average water center height, ugly m. A negative station depth is connected to an integer mn1.
84 Empty end (20C total narrow calculation
n, +P,+D×.10-e
respectively and two lines of the medical circle have light +m. .
let the width of the clear mining sandalwood pounds to
8.5 engineering performance calculation
8.5.1 calculate the total density of the increase in the protection 4V(dm\) medicine calculation: AW =
where, a -,, the maximum average value of the wear.mm;
P.--potential standard ball working pressure, MPE.; steel field modulus (28×10.MPa
let the joint ore
BE.? The total room root V.(dm) calculation D
v,= v+aV
calculation to the different fine code to dm
8.5.3 bearing! Calculation of partial volume dm>: -V
Wu: · Total height.cm
H, the height of the calculated partial volume, cm. The calculation result shall be accurate to dm
9 Report
According to the attached requirements C, a calibration technical report shall be issued.
10 Total uncertainty
The total uncertainty of the calibration result of this standard is less than 10.2 (5% multiple level). 9
(12)
CA/T15:81—94
Appendix A
Measurement of the height correction value from zero position of liquid level gauge to zero point of short bottom (additional parts)
For spherical net tank, the liquid level in the tank is usually determined by observing the scale of the level gauge across the plate screen: Usually, the zero point of the liquid level gauge scale and the zero point of the bottom of the tank are not on the same horizontal plane. In order to quickly obtain the liquid level in the tank determined by the level gauge scale and the actual accumulation in the tank, it is necessary to measure the height of the zero point of the level gauge scale and the bottom of the tank to a positive value. The height of the level gauge inside the tank is measured and the height correction value is added.
Use a level to measure the height H of the level gauge scale to the horizontal line of sight, and the height H from the center point 0 of the tank outer courtyard to the water half line of sight (as shown in A1). Calculate the height stop value H (mm) according to formula (A): =H, (HS)
wherein; H
is the height from the zero position of the level gauge scale to the horizontal sight line, mm: the height from the center point of the outer part to the horizontal gauge line, E:.9
the thickness of the lower pole, rmE:
[one-level scale position.-level only
elastic stretch
you make choice
GR/T 15181-94
you are correct"
national heart
firm use
++:+++-
medical and health group
electric degree victory
lower can promise
GB/T16181-94mm;
P.--Potential standard ball working pressure, MPE.; Field modulus of steel (28×10.MPa
Let the ore
BE.? The calculation of the total room root V. (dm) D
v, = v+aV
The calculation should be refined to dm
8.5.3 The calculation of the part content dm>: -V
Wu Zhong: · Carefully calculate the total height.cm
H, the height of the part penetration, cm. The calculation result is accurate to dm
9 Report
According to the attached requirements C, a calibration technical report is issued.
10 Total uncertainty
This standard is stolen The total uncertainty of the product is less than 10.2 times (5% level). 9
(12)
CA/T15:81—94
Appendix A
Measurement of the correction value of the height from the zero position of the liquid level gauge to the zero point of the short bottom (filler)
Spherical gold mesh tank two Leli calculator, the liquid level height in the sugar is generally determined by observing the scale of the cross-plate screen level gauge as follows: Usually the liquid air gauge scale The zero point of the scale is not on the same level as the zero point of the bottom of the tank. In order to quickly match the liquid level determined by the level gauge with the actual volume in the tank, it is necessary to measure the height of the zero point of the level gauge scale and the bottom of the tank to a positive value. The height of the level gauge inside the tank is added to the height adjustment value.
Use a level to read the new height H of the level gauge scale to the horizontal line of sight, and the height H from the center point 0 of the tank outer courtyard to the water half line of sight (as shown in A1) =H, (HS)
wherein; H
the height from the zero position of the level gauge scale to the horizontal sight line, mm: the height from the center point of the outer part to the horizontal gauge line, E:.9
the thickness of the lower pole, rmE:
[one-level scale position.-level only
elastic stretch
you make choice
GR/T 15181-94
youzheng"
national heart
firm use
++:+++-
medical and health group
electric degree victory
lower tank promise
GB/T16181-94mm;
P.--Potential standard ball working pressure, MPE.; Field modulus of steel (28×10.MPa
Let the ore
BE.? The calculation of the total room root V. (dm) D
v, = v+aV
The calculation should be refined to dm
8.5.3 The calculation of the part content dm>: -V
Wu Zhong: · Carefully calculate the total height.cm
H, the height of the part penetration, cm. The calculation result is accurate to dm
9 Report
According to the attached requirements C, a calibration technical report is issued.
10 Total uncertainty
This standard is stolen The total uncertainty of the product is less than 10.2 times (5% level). 9
(12)
CA/T15:81—94
Appendix A
Measurement of the correction value of the height from the zero position of the liquid level gauge to the zero point of the short bottom (filler)
Spherical gold mesh tank two Leli calculator, the liquid level height in the sugar is generally determined by observing the scale of the cross-plate screen level gauge as follows: Usually the liquid air gauge scale The zero point of the scale is not on the same level as the zero point of the bottom of the tank. In order to quickly match the liquid level determined by the level gauge with the actual volume in the tank, it is necessary to measure the height of the zero point of the level gauge scale and the bottom of the tank to a positive value. The height of the level gauge inside the tank is added to the height adjustment value.
Use a level to read the new height H of the level gauge scale to the horizontal line of sight, and the height H from the center point 0 of the tank outer courtyard to the water half line of sight (as shown in A1) =H, (HS)
wherein; H
the height from the zero position of the level gauge scale to the horizontal sight line, mm: the height from the center point of the outer part to the horizontal gauge line, E:.9
the thickness of the lower pole, rmE:
[one-level scale position.-level only
elastic stretch
you make choice
GR/T 15181-94
youzheng"
national heart
firm use
++:+++-
medical and health group
electric degree victory
lower tank promise
GB/T16181-94
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