CN102564500A - Method for estimating air consumption of compressed air system - Google Patents
Method for estimating air consumption of compressed air system Download PDFInfo
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- CN102564500A CN102564500A CN2011103523125A CN201110352312A CN102564500A CN 102564500 A CN102564500 A CN 102564500A CN 2011103523125 A CN2011103523125 A CN 2011103523125A CN 201110352312 A CN201110352312 A CN 201110352312A CN 102564500 A CN102564500 A CN 102564500A
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Abstract
The invention belongs to the field of energy conservation of pneumatic systems, and discloses a method for estimating air consumption of a compressed air system. The system comprises a compressor, an air storage tank and an air appliance. The method includes measuring change delta p1 of pressure in the air storage tank within time delta t1 after the system starts running stably; changing air yield of the compressor and setting variation as a set value delta Gin; then measuring change delta p2 of the pressure in the air storage tank within time delta t2; comparing change rate of the pressure in the air storage tank before and after the air yield of the compressor is changed; and estimating the volume of the integral system so that the air consumption of the system can be estimated according to the air yield Gin of the compressor before the air yield is changed and the set value delta Gin of the variation.
Description
Technical field
The invention belongs to energy-saving field of pneumatic, relate to a kind of evaluation method of compressed air system gas consumption.
Background technology
Generally in pressurized gas system; The total gas consumption of system slowly changes in time, and for guaranteeing enough instantaneous gas consumptions, the total gas production of compressor has certain having more than needed when system constructing; When instantaneous gas consumption reaches peak value; Gas production rate and gas consumption maintain an equal level, and this moment, system pressure was in minimumly, and the operational efficiency of compressor is high; But when the gas consumption of system diminished, the gas production rate of system was higher than gas consumption, and this moment, system pressure increased, and the operational efficiency of compressor reduces greatly, and total system is operated under the higher power consumption.
For making the energy saving of system operation; Satisfying under the prerequisite that remains on system's minimum essential requirement pressure under the system works pressure condition, the gas production rate of compressor should be fair with the gas consumption in system as far as possible, just can make system pressure maintain a lower value; And the gas consumption of system is to change along with the variation of operating mode; For with the gas production rate of compressor and the gas consumption coupling of system, at first to know the gas consumption of system, this shows; Flowmeter be not installed and can't flowmeter be installed and can't tests in the system of gas consumption, the gas consumption of estimating system is necessary.
Summary of the invention
The object of the inventionBe: the evaluation method that gas consumption in a kind of pressurized gas system is provided.
Technical scheme of the present inventionBe:
When system run to reach stable after, this moment, total gas consumption of system did
G Out, compressor a opens gas production rate and does
G In, differential is done on the The Ideal-Gas Equation both sides, ignore temperature variation and obtain:
Wherein:
VBe the volume of total system,
RBe the air constant,
TAir themperature.
Open valve 3 then, it is △ that compressor b opens gas production rate
G In, total gas consumption of supposing the system changes slowly, at △
t 2 In ignore its variation, obtain:
Simultaneous (1) (2), volume disappears
V, obtain:
Advantage of the present inventionBe: at the compressed air system of flowmeter not being installed or flowmeter can't be installed, total gas consumption of estimating system.
Description of drawings
Fig. 1 is the inventive method typical application synoptic diagram.
Wherein: 1, compressor a, 2, compressor b, 3, valve, 4, pressure transducer.
Embodiment
Be further described in the face of the present invention down.
Measuring process is following:
(a) compressor and starting a, and use the gas unit, waiting system is stable, Measuring Time △
t 1 The variation △ of pressure in the interior gas-holder
p 1
(b) open valve 3, compressor and starting b, the variable quantity of gas production rate are setting value △
G In, Measuring Time △ then
t 2 The variation △ of pressure in the interior gas-holder
p 2
Claims (1)
1. the evaluation method of a compressed air system gas consumption is characterized in that: Measuring Time △ t at first
1The variation △ p of pressure in the interior gas-holder
1, the gas production rate of change compressor, variable quantity is setting value △ G
In, Measuring Time △ t then
2The variation △ p of pressure in the interior gas-holder
2, the volume of system equals:
, wherein,
TIt is the gas-holder compressed air temperature; The gas consumption of system equals:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103523125A CN102564500B (en) | 2011-11-09 | 2011-11-09 | Method for estimating air consumption of compressed air system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103523125A CN102564500B (en) | 2011-11-09 | 2011-11-09 | Method for estimating air consumption of compressed air system |
Publications (2)
| Publication Number | Publication Date |
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| CN102564500A true CN102564500A (en) | 2012-07-11 |
| CN102564500B CN102564500B (en) | 2013-11-13 |
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| CN2011103523125A Active CN102564500B (en) | 2011-11-09 | 2011-11-09 | Method for estimating air consumption of compressed air system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278434A (en) * | 2013-05-20 | 2013-09-04 | 清华大学 | Device and method for measuring concentration of graphite dust in primary loop pipeline of high temperature gas cooled reactor |
| CN106150996A (en) * | 2016-08-30 | 2016-11-23 | 深圳市新环能科技有限公司 | The air compressor machine team control control system calculated based on demand gas consumption and method |
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| CN1692221A (en) * | 2003-02-27 | 2005-11-02 | 新卡特彼勒三菱株式会社 | System for measuring quantity of liquid fuel and method for measuring quantity of liquid fuel |
| CN1934740A (en) * | 2004-03-16 | 2007-03-21 | 丰田自动车株式会社 | Fuel cell system and method for controlling same |
| CN101082389A (en) * | 2006-05-29 | 2007-12-05 | 新疆新捷燃气有限责任公司 | CNG directly inflating process and CNG substation |
| CN101371122A (en) * | 2006-01-13 | 2009-02-18 | 株式会社科思莫计器 | Method for detecting fault in leakage inspector, leakage inspector |
| CN101509599A (en) * | 2009-03-31 | 2009-08-19 | 沈军 | Secondary gas filling station |
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2011
- 2011-11-09 CN CN2011103523125A patent/CN102564500B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1152122A (en) * | 1995-07-20 | 1997-06-18 | 丰田自动车株式会社 | Method of testing pressure relief |
| CN1592848A (en) * | 2001-11-27 | 2005-03-09 | 阿姆科技株式会社 | Pressure measuring method and device |
| CN1692221A (en) * | 2003-02-27 | 2005-11-02 | 新卡特彼勒三菱株式会社 | System for measuring quantity of liquid fuel and method for measuring quantity of liquid fuel |
| CN1934740A (en) * | 2004-03-16 | 2007-03-21 | 丰田自动车株式会社 | Fuel cell system and method for controlling same |
| CN101371122A (en) * | 2006-01-13 | 2009-02-18 | 株式会社科思莫计器 | Method for detecting fault in leakage inspector, leakage inspector |
| CN101082389A (en) * | 2006-05-29 | 2007-12-05 | 新疆新捷燃气有限责任公司 | CNG directly inflating process and CNG substation |
| CN101509599A (en) * | 2009-03-31 | 2009-08-19 | 沈军 | Secondary gas filling station |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278434A (en) * | 2013-05-20 | 2013-09-04 | 清华大学 | Device and method for measuring concentration of graphite dust in primary loop pipeline of high temperature gas cooled reactor |
| CN103278434B (en) * | 2013-05-20 | 2015-08-12 | 清华大学 | Measure the device and method of concentration of graphite dust in high temperature gas cooled reactor primary coolant circuit pipe |
| CN106150996A (en) * | 2016-08-30 | 2016-11-23 | 深圳市新环能科技有限公司 | The air compressor machine team control control system calculated based on demand gas consumption and method |
| CN106150996B (en) * | 2016-08-30 | 2018-05-18 | 深圳市新环能科技有限公司 | The air compressor machine team control control method calculated based on demand gas consumption |
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| CN102564500B (en) | 2013-11-13 |
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Address after: 100191 room A506, computer building, No. 38, Xueyuan Road, Beijing, Haidian District, China Patentee after: Beijing Aisuo energy Polytron Technologies Inc Address before: 100191 room A506, computer building, No. 38, Xueyuan Road, Beijing, Haidian District, China Patentee before: Beijing ECOSO Technology Development Co., Ltd. |