CN108332814B - Method for calculating weight of storage object in air film - Google Patents

Method for calculating weight of storage object in air film Download PDF

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CN108332814B
CN108332814B CN201810027312.XA CN201810027312A CN108332814B CN 108332814 B CN108332814 B CN 108332814B CN 201810027312 A CN201810027312 A CN 201810027312A CN 108332814 B CN108332814 B CN 108332814B
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air
volume
weight
calculating
stored
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CN108332814A (en
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谭宁
江林
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Zhejiang Yuedun Zhizao Technology Co ltd
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Zhejiang Yuedun Zhizao Technology Co ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F17/00—Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups

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  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention relates to the field of air films, in particular to a method for calculating the weight of an object stored in an air film. Comprises such asThe following steps: recording the factory power frequency air quantity of the fan as Q0(ii) a Pressure in the gas film is P1Recording the frequency of the fan as F1And has a frequency F by the fan1Calculating the air quantity Q in the air film in the state of no storage object1(ii) a After the stored material is stored in the air film, the pressure in the air film is regulated to P1Recording the frequency of the fan as f1And the frequency of the fan is f1Calculating the air quantity q in the air film1(ii) a Calculating the volume V of the stored material from the calculated parameters1(ii) a The volume V of the obtained storage material1The bulk weight of the stock is multiplied by ρ to obtain the weight G. The change in the air volume is due to the presence of the material stored in the air film, and therefore the change in the air volume is approximately equal to the volume of the stored material: calculating air quantity Q1、q1The volume of the stored material can be obtained by the difference value, and finally the volume V of the stored material is obtained1The bulk weight of the stock is multiplied by ρ to obtain the weight G. The volume and weight of the contents stored within the gas membrane can be calculated.

Description

Method for calculating weight of storage object in air film
Technical Field
The invention relates to the field of air films, in particular to a method for calculating the weight of an object stored in an air film.
Background
At present, compared with some industrial projects, the air film is used as a storehouse after being inflated, and because the occupied area of the air film is huge, the stored coal, grains or other stored objects are relatively scattered, and the volume and the weight cannot be calculated.
Disclosure of Invention
The invention aims to provide a method for calculating the weight of an object stored in an air film, and solve the problem that the volume and the weight of the object stored in the air film cannot be calculated.
The technical scheme for solving the technical problems is as follows: a method for calculating the weight of a storage object in an air film comprises the following steps:
s1: recording the factory power frequency air quantity of the fan as Q0；
S2: pressure in the gas film is P1Recording the frequency of the fan as F1And has a frequency F by the fan1Calculating absence of storage in gas filmAir quantity Q at state1；
S3: after the stored material is stored in the air film, the pressure in the air film is regulated to P1Recording the frequency of the fan as f1And the frequency of the fan is f1Calculating the air quantity q in the air film1；
S4: calculating the volume V of the stored material from the calculated parameters1；
S5: the volume V of the obtained storage material1The bulk weight of the stock is multiplied by ρ to obtain the weight G.
Further, in step S2, the air volume Q is1Is calculated by the formula Q1＝F1/50*Q0。
Further, in the step S3, the air volume q is1Is calculated as q1＝f1/50*Q0。
Further, in the step S4, the volume V of the stored material1Is calculated by the formula V1＝Q1-q1＝F1/50*Q0-f1/50*Q0＝(F1-f1)/50*Q0。
Further, in the steps S2 and S3, the pressures P in a plurality of different air films1Under the condition of (1), the air quantity Q in the state that the storage materials exist in the air film is respectively measured1And the air quantity q in the state of no storage1。
The invention provides a method for calculating the weight of a storage object in an air film, which comprises the following steps:
s1: recording the factory power frequency air quantity of the fan as Q0；
S2: pressure in the gas film is P1Recording the frequency of the fan as F1And has a frequency F by the fan1Calculating the air quantity Q in the air film in the state of no storage object1；
S3: after the stored material is stored in the air film, the pressure in the air film is regulated to P1Recording the frequency of the fan as f1And the frequency of the fan is f1Calculating the air quantity q in the air film1；
S4: by the aboveCalculating the volume V of the stored material from the calculated parameters1；
S5: the volume V of the obtained storage material1The bulk weight of the stock is multiplied by ρ to obtain the weight G.
Thus, the variation of the air volume is due to the presence of the material stored in the air film, and therefore is approximately equal to the volume of the stored material: by a certain pressure P after the gas film operation has stabilized1In the air film, the air quantity Q under the state of existence or nonexistence of the stored object is measured1、q1Calculating the air quantity Q1、q1The volume of the stored material can be obtained by the difference value, and finally the volume V of the stored material is obtained1The bulk weight of the stock is multiplied by ρ to obtain the weight G. Compared with the prior art, the method has the advantages that: the volume and weight of the contents stored within the gas membrane can be calculated.
Drawings
FIG. 1 is a schematic flow chart of a method for calculating the weight of an object stored in a gas film according to the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "center", "inner", "outer", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in FIG. 1, the invention provides a method for calculating the weight of a storage object in an air film, which comprises the following steps:
s1: recording the factory power frequency air quantity of the fan as Q0；
S2: pressure in the gas film is P1Recording the frequency of the fan as F1And has a frequency F by the fan1Calculating the air quantity Q in the air film in the state of no storage object1；
S3: after the stored material is stored in the air film, the pressure in the air film is regulated to P1Recording the frequency of the fan as f1And the frequency of the fan is f1Calculating the air quantity q in the air film1；
S4: calculating the volume V of the stored material from the calculated parameters1；
S5: the volume V of the obtained storage material1The bulk weight of the stock is multiplied by ρ to obtain the weight G.
Thus, the variation of the air volume is due to the presence of the material stored in the air film, and therefore is approximately equal to the volume of the stored material: by a certain pressure P after the gas film operation has stabilized1In the air film, the air quantity Q under the state of existence or nonexistence of the stored object is measured1、q1Calculating the air quantity Q1、q1The volume of the stored material can be obtained by the difference value, and finally the volume V of the stored material is obtained1The bulk weight of the stock is multiplied by ρ to obtain the weight G. Compared with the prior art, the method has the advantages that: the volume and weight of the contents stored within the gas membrane can be calculated.
The method for calculating the weight of the storage object in the air film, as shown in fig. 1, based on the technical scheme described above, may further include: in step S2, the air volume Q1Is calculated by the formula Q1＝F1/50*Q0。
The method for calculating the weight of the storage object in the air film of the invention is shown in figure 1,on the basis of the technical scheme described above, the method can also comprise the following steps: in the step S3, the air volume q1Is calculated as q1＝f1/50*Q0。
The method for calculating the weight of the storage object in the air film, as shown in fig. 1, based on the technical scheme described above, may further include: in the step S4, the volume V of the stored material1Is calculated by the formula V1＝Q1-q1＝F1/50*Q0-f1/50*Q0＝(F1-f1)/50*Q0。
The method for calculating the weight of the storage object in the air film, as shown in fig. 1, based on the technical scheme described above, may further include: in the steps S2 and S3, the pressure P is in a plurality of groups of different air films1Under the condition of (1), the air quantity Q in the state that the storage materials exist in the air film is respectively measured1And the air quantity q in the state of no storage1。
Wherein: volume of the object is V1The power frequency air quantity of the fan leaving the factory is Q0The weight of the storage material is G, and the volume weight is rho;
when there is no object in the air film, the air amount in the air film is calculated as follows:
initial pressure Frequency of Air quantity
P1 F11 Q1＝F11/50*Q0
P2 F12 Q2＝F12/50*Q0
P3 F13 Q3＝F13/50*Q0
…… …… ……
Pn F1n Qn＝F1n/50*Q0
When an object is placed in the air film, the air quantity in the air film is calculated as follows:
initial pressure Frequency of Air quantity
P1 f21 q1＝f21/50*Q0
P2 f22 q2＝f22/50*Q0
P3 f23 q3＝f23/50*Q0
…… …… ……
Pn f2n qn＝f2n/50*Q0
The change in the air volume is due to the presence of the material stored in the air film, and therefore the change in the air volume is approximately equal to the volume of the stored material:
obtaining a formula: v1＝Q1-q1＝F1/50*Q0-f1/50*Q0＝(F1-f1)/50*Q0；
For the accuracy of the calculation, it is common to calculate the volume of the storage at a plurality of different pressures and then take the average, i.e.:
Figure BDA0001545377630000051
therefore, the weight of the stored material is the product of volume and volume weight, namely:
Figure BDA0001545377630000052
among them, it should be noted that: the equation 50 represents a constant, and the skilled person knows the meaning of 50, so that the applicant does not need to describe the same in this application.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (2)

1. A method for calculating the weight of a storage object in an air film is characterized by comprising the following steps: the method comprises the following steps:
s1: recording the factory power frequency air quantity of the fan as Q0；
S2: pressure in the gas film is P1Recording the frequency of the fan as F1And has a frequency F by the fan1Calculating the air quantity Q in the air film in the state of no storage object1；
S3: after the stored material is stored in the air film, the pressure in the air film is regulated to P1Recording the frequency of the fan as f1And the frequency of the fan is f1Calculating the air quantity q in the air film1；
S4: calculating the volume V of the stored material from the calculated parameters1；
S5: the volume V of the obtained storage material1Multiplying the volume weight of the storage object by rho to obtain a weight G;
in step S2, the air volume Q1Is calculated by the formula Q1＝F1/50*Q0；
In the step S3, the air volume q1Is calculated as q1＝f1/50*Q0；
In the step S4, the volume V of the stored material1Is calculated by the formula V1＝Q1-q1＝F1/50*Q0-f1/50*Q0＝(F1-f1)/50*Q0。
2. The method for calculating the weight of the storage object in the gas film according to claim 1, wherein the method comprises the following steps: in the steps S2 and S3, the pressure P is in a plurality of groups of different air films1Under the condition of (1), the air quantity Q in the state that the storage materials exist in the air film is respectively measured1And the air quantity q in the state of no storage1。
CN201810027312.XA 2018-01-11 2018-01-11 Method for calculating weight of storage object in air film Active CN108332814B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1534279A (en) * 2003-03-27 2004-10-06 李洪伟 Application of frequency changing air flow calculation method in inaustrial production
CN206823157U (en) * 2017-05-25 2018-01-02 郑州市卧龙游乐设备有限公司 A kind of centralized supply wind device applied to packaged type membrane structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201014176Y (en) * 2006-12-26 2008-01-30 彭罡 Air-inflation membrane structure gas storage holder
CN201146786Y (en) * 2008-02-01 2008-11-12 崔炜 Food safe storage device
FR2979002B1 (en) * 2011-08-12 2014-11-07 Coldway METHOD FOR FILLING A GAS STORAGE TANK
US20160156782A1 (en) * 2014-12-02 2016-06-02 Kirusa, Inc. Outgoing Media Message Management
CN105668263B (en) * 2016-03-21 2017-10-17 赵世青 Large-scale closed fluidization storehouse and its application process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1534279A (en) * 2003-03-27 2004-10-06 李洪伟 Application of frequency changing air flow calculation method in inaustrial production
CN206823157U (en) * 2017-05-25 2018-01-02 郑州市卧龙游乐设备有限公司 A kind of centralized supply wind device applied to packaged type membrane structure

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