CN205879908U - Compressed air quality detection device for appearance - Google Patents
Compressed air quality detection device for appearance Download PDFInfo
- Publication number
- CN205879908U CN205879908U CN201620732680.0U CN201620732680U CN205879908U CN 205879908 U CN205879908 U CN 205879908U CN 201620732680 U CN201620732680 U CN 201620732680U CN 205879908 U CN205879908 U CN 205879908U
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- connecting tube
- water content
- compressed air
- oil content
- trachea
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Abstract
The utility model discloses a compressed air quality detection device for appearance, include the sampling connecting pipe of being connected with the compressed air pipe way, wherein, an atmospheric pressure distribution unit is connected to the sampling connecting pipe, and atmospheric pressure distribution unit has the output of four ways trachea, and water content detecting element is connected through first governing valve to the output of first via trachea, and oil content detecting element is connected through the second governing valve to trachea output in second way, and dustiness detecting element is connected through the third governing valve to trachea output in third way, and a pressure balance gassing governing valve is connected on the fourth way, be provided with mass flow meter on the connecting line behind the first via and the second way governing valve respectively, one is detected the control unit and connects a plurality ofly respectively governing valve and mass flow meter. The device provided by the utility model can be at same sample point, with the measuring of carrying out water content, oil content, dustiness at one time, pressure distribution unit has guaranteed through the auto -Turning of bypass that water content measuring, oil content detect required gas flow's stability.
Description
Technical field
This utility model relates to gaseous mass detection and analyzes, particularly to a kind of compressed air for instrument quality detection device.
Background technology
As one of big power of power plant two, compressed air and electric power have status of equal importance.But, instrument compression sky
The quality testing of gas is the most out in the cold, and therefore causes compressed air for instrument Quality Down, pneumatic actuator tripping and
The accident jeopardizing unit safety operation happens occasionally.
The quality testing of compressed air for instrument mainly includes three aspects: humidity, oil content and dustiness, is to ensure that and is
The index that system safety and stability must control.
Relevant criterion gives the quality standard of compressed air for instrument.HG/T 20510-2014 " instrument supply design rule
Model " in " 3 air source quality " require have: the dew point under (1) air supply system source of the gas operation (online) pressure, should than working environment or
Local year (season) extreme minimum temperature is the lowest 10 DEG C in history；(2) instrument air dust-laden particle diameter not should be greater than 3um, dustiness
Should be less than 1mg/m3；(3) in instrument air, oil content should be less than 1ppm.
Relevant criterion give also the detection method of compressed air for instrument.GB/T 4830-2015 " industrial automation instrument
Bleed pressure scope and quality " in regulation oil content method of testing sample mode be carbon tetrachloride absorption process；Analysis method is for dividing
Light photometry.GB/T30475.1-2013 " compressed-air filter test method part 1: suspended oil " and GB/
T30475.2-2013 " compressed-air filter test method part 2: oil vapour " sets forth suspended oil and oil vapour
The test method of filter principle.ISO 8573 " compressed air " series standard gives compressed air suspended oil content, liquid
State moisture, solid content test method.
For complete detection compressed air for instrument quality, will use 3 instruments respectively, 3 kinds of methods are to compressed air for instrument
In water content, oil content, 3 indexs of dustiness detect.So tend not to draw testing result in the same time, number
Relatedness between according to is relatively low.
In order to make detection data have comparability, by the ratio of the compressed air for instrument quality testing data of different time
Right, draw air compressor operation conditions, it would be highly desirable to develop new detection means, solve compressed air for instrument quality testing
Data are difficult to the difficult problem synchronized.
Summary of the invention
The purpose of this utility model is to provide a kind of compressed air for instrument quality detection device, sets in pressure allocation unit
Count bypass, by the automatic regulation function of bypass, it is ensured that water content detection, oil content detect the steady of desired gas flow
Fixed.More existing hermetically sealed detection can obtain more accurate, the most preferably detects data.
The purpose of this utility model is achieved through the following technical solutions, a kind of compressed air for instrument quality testing dress
Putting, including the sampling connecting tube being connected with compressed air piping, wherein, it is single that described sampling connecting tube connects an air pressure distribution
Unit, air pressure allocation unit has four road trachea outputs, and the output of first via trachea connects water content detector unit by the first regulation valve,
Second road trachea output connects oil content detector unit by the second regulation valve, and the 3rd road trachea output is by the 3rd regulation valve even
Connecing dustiness detector unit, the 4th tunnel connects a pressure balance venting regulation valve；After the described first via and the second tunnel regulation valve
Connecting line on be respectively arranged with mass flowmenter, a detection control unit connects multiple described regulation valve and quality respectively
Effusion meter.
Scheme is further: the water content detector unit connecting tube that described water content detector unit is separated in including, even
Adapter one end connects the output of first via trachea, and the connecting tube other end connects gas outlet, and in connecting tube, separated two ends are for even
Connect water content test tubes, water content test tubes and two ends connecting tube are respectively arranged with hermetic collar；Equally, described oil-containing
The oil content detector unit connecting tube that amount detection unit is separated in including, connecting tube one end connects the second road trachea output, even
The adapter other end connects gas outlet, and in connecting tube, separated two ends are used for connecting oil content test tubes, oil content detection examination
It is respectively arranged with hermetic collar in pipe and two ends connecting tube.
Scheme is further: described trachea and connecting line use politef material pipeline.
Scheme is further: described water content detector unit and the oil content detector unit connecting tube other end connect gas outlet
Pipeline on be respectively arranged with mass flow meters.
This utility model compared with prior art, the advantage with following aspect:
The device that this utility model provides can be at same sample point, and the same time carries out water content, oil content, dustiness
Detection, currently available technology detects while can not realizing three kinds of Testing index.
The device that this utility model provides devises bypass in pressure allocation unit, by the automatic regulation function of bypass,
Ensure that water content detection, oil content detect stablizing of desired gas flow.More existing hermetically sealed detection can obtain more accurate
Really, data are the most preferably detected.
The device that this utility model provides uses in the detection pipe method detection compressed air for instrument that scale is evenly distributed
Water content and oil content, its detection range more existing detection technique scope is bigger, water content detection range reach 10uL/L ~
1000uL/L, oil content detection range reaches 0.1uL/L ~ 100uL/L and meets each sample point of power plant's air compressor
Testing requirement.
The device that this utility model provides uses two-flow to control, and flows through water content and the gas flow of oil content detection pipe
More accurate.One-level controls to be mass flowmenter, and Two-stage control is mass flow meters.So that water content and oil content testing result
More accurate.
The device that this utility model provides uses real-time traffic and total flow to control, and need not calculate water content by timing
And oil content.Make the water content in Site Detection compressed air for instrument and oil content convenient, quick.
The plant automation degree that this utility model provides is higher, can be precisely controlled and flow through water content and oil content detection pipe
Gas flow, can realize bypass gas discharge be automatically adjusted, each gas circuit flow is frequently set without staff.
Below in conjunction with the accompanying drawings and this utility model is described in further detail by detailed description of the invention.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Detailed description of the invention
A kind of compressed air for instrument quality detection device, as it is shown in figure 1, include that the sampling being connected with compressed air piping connects
Adapter 1, wherein, described sampling connecting tube connects an air pressure allocation unit 2, and air pressure allocation unit has four road trachea outputs, the
One road trachea output connects water content detector unit 3 by the first regulation valve 201, and the second road trachea output is by the second regulation valve
202 connect oil content detector unit 4, and the 3rd road trachea output connects dustiness detector unit 5 by the 3rd regulation valve 203, the
Four tunnels connect a pressure balance venting regulation valve 204；On connecting line after the described first via and the second tunnel regulation valve respectively
Being provided with mass flowmenter 205 and 206, a detection control unit connects multiple described regulation valve and mass flowmenter respectively,
Wherein, four road trachea outputs are that parallel connection is connected with sampling connecting tube 1.
In embodiment: the water content detector unit connecting tube 301 that described water content detector unit is separated in including, connect
Pipe one end connects the output of first via trachea, and the connecting tube other end connects gas outlet 6, and in connecting tube, separated two ends are used for connecting
Water content test tubes 302, water content test tubes and two ends connecting tube are respectively arranged with hermetic collar；Equally, described contain
The oil content detector unit connecting tube 401 that oil mass detector unit is separated in including, it is defeated that connecting tube one end connects the second road trachea
Going out, the connecting tube other end connects gas outlet, and in connecting tube, separated two ends are used for connecting oil content test tubes 402, oil-containing
Amount test tubes is respectively arranged with hermetic collar in the connecting tube of two ends.
In embodiment: described trachea and connecting line use politef material pipeline.Further, described water content
It is respectively arranged with mass flow meters 303 He on the pipeline of detector unit and oil content detector unit connecting tube other end connection gas outlet
403。
Water content of compressed air, oil content, dustiness can be detected, during detection by this device simultaneously: first dismantle
Water content test tubes 302 and the seal plug at oil content test tubes 402 two ends, examine water content test tubes and oil content
Testing tube fixes water content detector unit connecting tube 301 by hermetic collar and oil content detector unit connecting tube 401 breaks end two
End.Close the flow stop valve 201 and 202 of detection device, sampling connecting tube 1 is connected compressed air piping sample tap, all
Pipeline selects politef material pipeline, it is to avoid the adsorption of moisture, oil, dust particle in compressed air for instrument.Pass through
The control panel that detection control unit is arranged, sets the flow of mass flowmenter 205 and 205, is distributed through water content detection examination
Pipe and the gas flow of oil content test tubes, the control of flow is the pressure balance venting regulation connected by regulation the 4th tunnel
Valve 204 is controlled.
The flow stop valve 201 and 202 of opening detecting device, the stream that the record display screen that detection control unit is arranged shows
Through water content test tubes and oil content test tubes two-way gas actual flow.Treat that gas is flow through in mass flow meters 303 and 403 display
When the scale of construction reaches 3L gas, close flow stop valve 201 and 202, read water content test tubes and the examination of oil content test tubes
Value.By calculating the water content in sample point compressed air for instrument and oil content.
Test for gas silt content is: the flow stop valve 203 of opening detecting device, controls to contain by control panel
The unlatching of the airborne particle counter of dust quantity detector unit 5, counts the dust particle in 2.83L compressed air for instrument,
Detection closes flow stop valve 203, by calculating the dustiness in sample point compressed air for instrument after terminating.
The water content detection part of the detector unit described in this device, can have been managed water content detection by hermetic collar
Hermetically sealed being connected to is detected in gas circuit, and water content detection pipe outer wall is attached with the protective layer of politef material, can be with card
Set is combined closely, air tight at 0.7MPa pressure lower seal.Water content detection pipe has scale marker, and maximum scale is that moisture contains
Amount 1000uL/L, can change the water content detection pipe of different range as required.Described mass flow meters, it is possible to record process
Gas gross, the gas coming through amounts such as 3L, 5L, 10L of can choosing during detection calculate to complete water content.
The oil content detection part of described detector unit, can detect pipe by oil content by hermetic collar and fully seal
Being connected to detect in gas circuit, oil content detection pipe outer wall is attached with the protective layer of politef material, can be tight with cutting ferrule
In conjunction with, air tight at 0.7MPa pressure lower seal.Oil content detection pipe has scale marker, and maximum scale is oil content 100uL/
L, can change the oil content detection pipe of different range as required.Described mass flow meters, it is possible to the gas gross of record process,
The gas coming through amounts such as 3L, 5L, 10L of can choosing during detection calculate to complete oil content.
The dustiness detection part of described detector unit, completes the detection of dustiness by airborne particle counter,
Its detection flow takes low discharge to detect, and is 2.83 liters/min (0.1cfm), and error≤± 5%.
This device wherein mass flowmenter can be precisely controlled and flow through water content detection pipe and the gas of oil content detection pipe
Pressure is between 0.1MPa ~ 0.15MPa, and bypass can be by the size of automatic regulation function regulation gas discharge；Water content and
Oil content detection pipe outer wall is attached with the protective layer of politef material, can combine closely with hermetic collar.Its advantage is:
Detected by water content, oil content detects, dustiness detection common sample introduction gas circuit, it is achieved detect while Testing index in 3；Logical
Cross the bypass of increase sample introduction gas circuit, lay down unnecessary gas pressure, it is ensured that sample introduction gas circuit does not builds the pressure, so that detected gas flow is more
Adding stable, detection data are more accurate；By water content detection pipe and oil content detection pipe and the combining closely of hermetic collar, guarantor
Card detection gas circuit is air tight, makes detection data more accurate；By changing the water content detection pipe of different range, oil content detects
Pipe, can realize meeting the compressed air for instrument quality testing requirement of the various sample point of power plant；Solve power plant's compressed air for instrument
A difficult problem present in quality testing.
Claims (4)
1. a compressed air for instrument quality detection device, including the sampling connecting tube being connected with compressed air piping, its feature
Being, described sampling connecting tube connects an air pressure allocation unit, and air pressure allocation unit has four road trachea outputs, first via trachea
Exporting and connect water content detector unit by the first regulation valve, the second road trachea output connects oil content by the second regulation valve and examines
Surveying unit, the 3rd road trachea output connects dustiness detector unit by the 3rd regulation valve, and the 4th tunnel connects a pressure balance
Venting regulation valve；It is respectively arranged with mass flowmenter, an inspection on connecting line after the described first via and the second tunnel regulation valve
Survey control unit and connect multiple described regulation valve and mass flowmenter respectively.
Compressed air for instrument quality detection device the most according to claim 1, it is characterised in that the detection of described water content is single
The water content detector unit connecting tube that unit is separated in including, connecting tube one end connect the first via trachea output, connecting tube another
End connects gas outlet, and in connecting tube, separated two ends are used for connecting water content test tubes, water content test tubes and two ends
Hermetic collar it is respectively arranged with in connecting tube；Equally, the oil content detection that described oil content detector unit is separated in including is single
Unit's connecting tube, connecting tube one end connects the second road trachea output, and the connecting tube other end connects gas outlet, separated in connecting tube
Two ends are used for connecting oil content test tubes, and oil content test tubes and two ends connecting tube are respectively arranged with hermetic collar.
Compressed air for instrument quality detection device the most according to claim 1 and 2, it is characterised in that described trachea and company
Adapter road uses politef material pipeline.
Compressed air for instrument quality detection device the most according to claim 2, it is characterised in that the detection of described water content is single
It is respectively arranged with mass flow meters on the pipeline of unit and oil content detector unit connecting tube other end connection gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620732680.0U CN205879908U (en) | 2016-07-12 | 2016-07-12 | Compressed air quality detection device for appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620732680.0U CN205879908U (en) | 2016-07-12 | 2016-07-12 | Compressed air quality detection device for appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205879908U true CN205879908U (en) | 2017-01-11 |
Family
ID=57695045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620732680.0U Expired - Fee Related CN205879908U (en) | 2016-07-12 | 2016-07-12 | Compressed air quality detection device for appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205879908U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398366A (en) * | 2018-03-07 | 2018-08-14 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of power plant's compressed air gaseous mass comprehensive detection and analysis system and method |
| CN108680485A (en) * | 2018-06-22 | 2018-10-19 | 南京林业大学 | A kind of dust media performance test device |
| CN109406220A (en) * | 2017-08-16 | 2019-03-01 | 咸东锡 | Gas sample collector and gas leak detection apparatus including it |
| CN110514483A (en) * | 2019-08-13 | 2019-11-29 | 湖北华强科技有限责任公司 | A kind of fast appraisement method of Compressed Air degree |
| CN110530656A (en) * | 2018-05-25 | 2019-12-03 | 中车唐山机车车辆有限公司 | A kind of air supply system testing stand |
| CN111948355A (en) * | 2020-09-11 | 2020-11-17 | 澎浩船舶技术服务(上海)有限公司 | Air quality analysis and detection equipment of breathing air compressor |
-
2016
- 2016-07-12 CN CN201620732680.0U patent/CN205879908U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406220A (en) * | 2017-08-16 | 2019-03-01 | 咸东锡 | Gas sample collector and gas leak detection apparatus including it |
| CN108398366A (en) * | 2018-03-07 | 2018-08-14 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of power plant's compressed air gaseous mass comprehensive detection and analysis system and method |
| CN110530656A (en) * | 2018-05-25 | 2019-12-03 | 中车唐山机车车辆有限公司 | A kind of air supply system testing stand |
| CN108680485A (en) * | 2018-06-22 | 2018-10-19 | 南京林业大学 | A kind of dust media performance test device |
| CN110514483A (en) * | 2019-08-13 | 2019-11-29 | 湖北华强科技有限责任公司 | A kind of fast appraisement method of Compressed Air degree |
| CN111948355A (en) * | 2020-09-11 | 2020-11-17 | 澎浩船舶技术服务(上海)有限公司 | Air quality analysis and detection equipment of breathing air compressor |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20210712 |
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| CF01 | Termination of patent right due to non-payment of annual fee |