CN1188671C - Gas flow standardizing devices - Google Patents
Gas flow standardizing devices Download PDFInfo
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- CN1188671C CN1188671C CNB031096484A CN03109648A CN1188671C CN 1188671 C CN1188671 C CN 1188671C CN B031096484 A CNB031096484 A CN B031096484A CN 03109648 A CN03109648 A CN 03109648A CN 1188671 C CN1188671 C CN 1188671C
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 14
- 238000012360 testing method Methods 0.000 abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 5
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- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
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Abstract
本发明公开了一种气流量标准装置，旨在提供一种在高压及可调压情况下精度高的气流量测试装置。卡表工作台、手球阀、汇流罐、出口容器、与空压机供气系统连接的稳压罐、风机、稳压罐、调压阀依次连接成为一个封闭系统。在汇流罐与出口容器之间设置有至少一组由两块互相串接的标准表组成的标准表组和气球阀。在汇流罐和出口容器的两端分别设置有压力变送器和温度变送器。微控器分别与风机、第二调压阀、手球阀、第一压力变送器、温度变送器、标准表、气球阀、空压机供气系统、第五压力变送器连接。本发明适用于系统压力大，要求标定精度高的标准表测试。
The invention discloses an air flow standard device, aiming to provide an air flow test device with high precision under the condition of high pressure and adjustable pressure. The card table, handball valve, confluence tank, outlet container, pressure tank connected to the air compressor air supply system, fan, pressure tank, and pressure regulating valve are connected in sequence to form a closed system. Between the confluence tank and the outlet container, at least one set of standard gauges composed of two standard gauges connected in series and a balloon valve are arranged. A pressure transmitter and a temperature transmitter are respectively arranged at both ends of the confluence tank and the outlet container. The microcontroller is respectively connected with the fan, the second pressure regulating valve, the hand ball valve, the first pressure transmitter, the temperature transmitter, the standard gauge, the balloon valve, the air compressor air supply system, and the fifth pressure transmitter. The invention is suitable for the standard gauge test which requires high calibration precision due to high system pressure.
Description
技术领域Technical field
本发明涉及一种标准装置，更具体的说是涉及一种标准表测试装置。The invention relates to a standard device, in particular to a standard meter testing device.
背景技术 Background technique
目前，标准表的测试装置都是采用开环装置，当气体压力大时，无法测量，而且精度差。At present, the test devices of standard meters are all open-loop devices. When the gas pressure is high, it cannot be measured and the accuracy is poor.
发明内容Contents of Invention
本发明是为了克服现有技术中的不足之处，提供一种在气体压力大时精度高的测试装置。The purpose of the present invention is to overcome the deficiencies in the prior art and provide a testing device with high precision when the gas pressure is high.
本发明通过下述技术方案实现：卡表工作台依次与手球阀、汇流罐、至少一组标准表组、气球阀、出口容器连接；出口容器与和空压机供气系统相连的第二稳压罐连接，第二稳压罐通过管道与风机连接；风机依次与第一稳压罐、第一调压阀连接；第一调压阀与卡表工作台连接，形成闭合回路；所述汇流罐的一端分别设置有第一压力变送器和第一温度变送器，汇流罐的另一端设置有第二压力变送器；出口容器的一端设置有第三压力变送器，另一端设置有第四压力变送器和第二温度变送器；第二稳压罐与风机之间设置有第五压力变送器；微控器分别与风机、第一调压阀、手球阀、第一压力变送器、第一温度变送器、标准表组、气球阀、第四压力变送器、第二温度变送器、空压机供气系统、第五压力变送器连接。The present invention is realized through the following technical solutions: the card meter workbench is sequentially connected with a hand ball valve, a confluence tank, at least one set of standard meter groups, a balloon valve, and an outlet container; The pressure tank is connected, and the second surge tank is connected to the fan through a pipeline; the fan is connected to the first pressure tank and the first pressure regulating valve in turn; the first pressure regulating valve is connected to the card meter workbench to form a closed loop; the confluence One end of the tank is respectively provided with a first pressure transmitter and a first temperature transmitter, the other end of the confluence tank is provided with a second pressure transmitter; one end of the outlet container is provided with a third pressure transmitter, and the other end is provided with a There is a fourth pressure transmitter and a second temperature transmitter; a fifth pressure transmitter is arranged between the second pressure regulator tank and the fan; A pressure transmitter, a first temperature transmitter, a standard meter group, a balloon valve, a fourth pressure transmitter, a second temperature transmitter, an air compressor air supply system, and a fifth pressure transmitter are connected.
本发明中的标准表采用气体涡轮流量计或涡街流量传感器，且每组标准表组由两块标准表串接组成，并在第一稳压罐与第一调压阀之间设置有第二调压阀。在卡表工作台一端设置有第六压力变送器和第三温度变送器，第六压力变送器和第三温度变送器与微控器连接。The standard meter in the present invention adopts a gas turbine flowmeter or a vortex flow sensor, and each group of standard meters is composed of two standard meters connected in series, and a second Two pressure regulating valves. A sixth pressure transmitter and a third temperature transmitter are arranged at one end of the card table, and the sixth pressure transmitter and the third temperature transmitter are connected to the microcontroller.
本发明具有下述有益效果：The present invention has following beneficial effect:
1.本发明采用闭环方式，提高了系统气体压力，压力可调；1. The present invention adopts a closed-loop method, which increases the system gas pressure, and the pressure is adjustable;
2.气体流量的大小通过标准表，每个管道安装两台标准表，极大地提高了标准装置的标定精度。2. The size of the gas flow is through the standard meter, and two standard meters are installed in each pipeline, which greatly improves the calibration accuracy of the standard device.
附图说明Description of drawings
图1为气流量标准装置图。Figure 1 is a diagram of the air flow standard device.
具体实施方式 Detailed ways
下面结合附图对本发明作详细说明：The present invention is described in detail below in conjunction with accompanying drawing:
如图1所示，用直径为100mm的不锈钢管道将第一稳压罐1、第二调压阀2、第一调压阀3、卡表工作台8、手球阀9及汇流罐11依次连接。汇流罐11通过直径为50mm的不锈钢管道与一组由两块互相串接的标准表组成的标准表组14、气球阀15依次连接；根据测试的需要，汇流罐可以与多组标准表组和气球阀连接，例如，汇流罐11还可以分别通过直径为80mm、100mm的不锈钢管道与另外两组互相串接的标准表组、气球阀连接；其中标准表可以使用气体涡轮流量计或涡街流量传感器。上述气球阀15再与出口容器17连接。出口容器17通过直径为150mm的不锈钢管道与和空气机供气系统连接的第二稳压罐20连接，之后通过150mm管道与风机22连接。风机22通过150mm不锈钢管道与第一稳压罐1连接，从而形成闭合回路，可调压。上述第一调压阀3可以是自动调压阀。As shown in Figure 1, the first surge tank 1, the second pressure regulating valve 2, the first pressure regulating valve 3, the card meter workbench 8, the hand ball valve 9 and the confluence tank 11 are connected in sequence with stainless steel pipes with a diameter of 100mm . The confluence tank 11 is connected in sequence with a set of
在汇流罐11的一端安装有第一压力变送器12和第一温度变送器13，另一端安装有第二压力变送器10。在出口容器17的一端安装有第三压力变送器16，另一端安装有第四压力变送器18和第二温度变送器19。在风机22和第二稳压罐20之间安装有第五压力变送器21。A
微控器分别与手球阀9、第一压力变送器12、第一温度变送器13、标准表组14、气球阀15、第四压力变送器18、第二温度变送器19、空压机供气系统、第五压力变送器21、风机22、第一调压阀3、第六压力变送器4、第三温度变送器5、气动卡表器7连接。The micro-controller is respectively connected with the hand ball valve 9, the
按照上述方法安装后即成为一个气流量标准装置。After being installed according to the above method, it becomes an air flow standard device.
测试时，将被测表6通过卡表工作台8上的气动卡表器7固定在卡表工作台上，并将被测表6与微控器连接。气体流量以标准表为基准，将被测表的测量数据及温度、压力等各种信号送入微控器处理并打印输出。During the test, the tested meter 6 is fixed on the card meter workbench through the pneumatic card meter device 7 on the card meter workbench 8, and the tested meter 6 is connected with the micro-controller. The gas flow is based on the standard meter, and the measurement data of the meter under test and various signals such as temperature and pressure are sent to the microcontroller for processing and output.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031096484A CN1188671C (en) | 2003-04-11 | 2003-04-11 | Gas flow standardizing devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031096484A CN1188671C (en) | 2003-04-11 | 2003-04-11 | Gas flow standardizing devices |
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| CN1439866A CN1439866A (en) | 2003-09-03 |
| CN1188671C true CN1188671C (en) | 2005-02-09 |
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| CNB031096484A Expired - Fee Related CN1188671C (en) | 2003-04-11 | 2003-04-11 | Gas flow standardizing devices |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251405B (en) * | 2008-04-08 | 2011-06-01 | 余姚市银环流量仪表有限公司 | Apparatus for calibrating gas instrument |
| CN104501917A (en) * | 2015-01-04 | 2015-04-08 | 镇江市计量检定测试中心 | Ultra-large diameter sonic nozzle block type gas flowmeter calibrating device |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368782C (en) * | 2005-12-28 | 2008-02-13 | 张祖明 | Flow standard measuring apparatus by photographic technique |
| CN102435268B (en) * | 2011-11-02 | 2015-03-18 | 中国核工业二三建设有限公司 | Calibration device for gas flow meter and method thereof |
| CN102997978A (en) * | 2012-11-27 | 2013-03-27 | 山东迪泽仪表科技有限公司 | Ring chamber positive pressure flow detection device |
| CN103471686B (en) * | 2013-09-17 | 2015-12-30 | 陕西天仪智能仪表有限公司 | A kind of gas flow standard device and application process thereof |
| CN105222865A (en) * | 2015-07-23 | 2016-01-06 | 中国计量学院 | Turbo flow meter on-line monitoring method and device |
| CN107702768B (en) * | 2017-10-12 | 2020-03-03 | 西安航天动力研究所 | High-pressure air large-flow field calibration device and method |
| CN110043370B (en) * | 2018-01-17 | 2020-12-15 | 中国航发商用航空发动机有限责任公司 | Air flow measuring method of turbofan engine core machine |
-
2003
- 2003-04-11 CN CNB031096484A patent/CN1188671C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251405B (en) * | 2008-04-08 | 2011-06-01 | 余姚市银环流量仪表有限公司 | Apparatus for calibrating gas instrument |
| CN104501917A (en) * | 2015-01-04 | 2015-04-08 | 镇江市计量检定测试中心 | Ultra-large diameter sonic nozzle block type gas flowmeter calibrating device |
| CN104501917B (en) * | 2015-01-04 | 2018-09-18 | 镇江市计量检定测试中心 | Super large caliber sonic nozzle group formula gas flowmeter calibrating installation |
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| CN1439866A (en) | 2003-09-03 |
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