CN109425514A - fluid sampling device - Google Patents
fluid sampling device Download PDFInfo
- Publication number
- CN109425514A CN109425514A CN201710995127.5A CN201710995127A CN109425514A CN 109425514 A CN109425514 A CN 109425514A CN 201710995127 A CN201710995127 A CN 201710995127A CN 109425514 A CN109425514 A CN 109425514A
- Authority
- CN
- China
- Prior art keywords
- sample body
- sample
- negative pressure
- sampling apparatus
- outgoing line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 124
- 238000005070 sampling Methods 0.000 title claims abstract description 67
- 239000007788 liquid Substances 0.000 claims abstract description 73
- 239000005416 organic matter Substances 0.000 claims description 20
- 230000002159 abnormal effect Effects 0.000 claims description 15
- 239000013618 particulate matter Substances 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 14
- 238000001514 detection method Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 199
- 239000007789 gas Substances 0.000 description 66
- 230000000694 effects Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000002440 industrial waste Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 150000002894 organic compounds Chemical class 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002572 peristaltic effect Effects 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
A fluid sampling device provides negative pressure airflow to lead in sample fluid from a sample body leading-in pipeline and flow to a sample body leading-out pipeline through a detection pipeline, and filters impurities such as liquid and granular substances carried in the sample fluid flowing through the sample body leading-in pipeline or the sample body leading-out pipeline through a filter arranged in the sample body leading-in pipeline or the sample body leading-out pipeline, and can automatically discharge the carried liquid. Therefore, the invention can prevent impurities such as liquid and granular substances carried by the sample fluid in the negative pressure pipeline from polluting related pipelines or components in the fluid sampling device in the detection process.
Description
Technical field
The present invention relates to the detection technique fields of volatile organic matter, take in particular to the fluid of sample fluid
Sampling device.
Background technique
With the progress of human industry, air pollution just gradually aggravates.Therefore, each major industrial country is all right in the world
The discharge formulation of volatile organic matter (volatile organic compounds, VOCs) has control test, and has and more come
Stringenter trend, so that industrial gaseous environment, which would generally be required to install additional, can be directed to volatile organic matter in gas
Form the measurement system measured.
Above-mentioned volatile organic matter generally refers to (0 DEG C and 760mmHg) in normal conditions, boiling point 250 DEG C with
Under organic compound or even someone's directly property of will volatilize organic substance be defined as, the institute being present in atmosphere with gaseous form
There is organic compound, includes the organic compounds such as total hydrocarbon (abbreviation THC), non-methane total hydrocarbon (abbreviation NMHC)
Object.
Fluid sampling apparatus is for detecting the volatile organic matter analytical equipment in industrial waste gas, due to by framework
Design is not that all areas are equal if material, materials and parts are limited if appropriate for hot environment, in volatile organic matter analytical equipment
It is suitble to setting heating apparatus (such as baking oven), therefore, the inner space of volatile organic matter analytical equipment can be according to temperature height
It is low and be divided into high-temperature area and low-temperature region, wherein condensation of the temperature of the high-temperature area usually above liquid and particulate matter
Temperature (high-temperature area is close to heating device), and the temperature of the low-temperature region is suitable with general room temperature, that is, is less than or equal to liquid
And the adiabatic condensation temperature of particulate matter, it is however generally that, positioned at the front end of volatile organic matter analytical equipment incoming line or after
The outgoing line at end is generally in above-mentioned so-called low-temperature region.
Since generated industrial waste gas is usually the gas of high temperature and humidity in industry manufacture, and wherein often carry
The impurity such as a large amount of liquid, particulate matter, when such industrial waste gas is by low inside volatile organic matter analytical equipment
When temperature area, the impurity such as entrained liquid or particulate matter can be condensed since the temperature of low-temperature region is lower in industrial waste gas
In in the associated pipe and component being in low-temperature region, it is different the pollution of associated pipe and the damage of component etc. have been thereby resulted in
Often.
In view of this, how to provide a kind of fluid sampling apparatus, to overcome above-mentioned many disadvantages of the existing technology, i.e.,
For the application technical problem to be solved.
Summary of the invention
In view of the variety of problems of above-mentioned prior art, the main purpose of the present invention is to provide a kind of fluid sampling apparatus,
The fluid sampling apparatus can filter out the impurity such as liquid and particulate matter in sample fluid, to avoid volatile organic matter
Associated pipe and component in analytical equipment are contaminated.
Another object of the present invention is to provide a kind of fluid sampling apparatus, import sample fluid, institute by negative pressure mode
Stating fluid sampling apparatus can avoid pollution of the pump housing by sample fluid, can extend the service life of the pump housing.
Another object of the present invention is to provide a kind of fluid sampling apparatus, the fluid sampling apparatus can detect volatility
Associated pipe and component in organic substance analytical equipment whether there is abnormal leakage.
In order to achieve the above objectives and other purposes, the present invention provide a kind of fluid sampling apparatus, the fluid sampling dress
It sets for being sampled to sample fluid, which includes: the concentration or component for detecting the sample fluid
Signal piping；It is connected to the signal piping, which is imported to the sample body incoming line of the signal piping；It is connected to the detection
The sample fluid is exported the sample body outgoing line of the signal piping by pipeline；It is set to the sample body incoming line or the sample body
The filter of outgoing line filters out the liquid in the sample fluid of the sample body incoming line or the sample body outgoing line, and makes
Gas in the sample fluid of the sample body incoming line or the sample body outgoing line passes through；It is connected to the negative pressure of the sample body outgoing line
Pump provides negative pressure gas flow, and the sample fluid is made to flow to sample body export via the signal piping from the sample body incoming line
Pipeline, and receive the gas that the filter is passed through；It is connected to the liquid discharge device of the filter, the filter is received and is filtered out
Liquid；And control the control module of the negative pressure pump and liquid discharge device execution operation.
Preferably, which is volatile organic matter analytical equipment, and the signal piping is to detect the sample
The concentration or component of volatile organic matter in product fluid.
Preferably, which can also filter out the grain in the sample fluid of the sample body incoming line or the sample body outgoing line
Shape substance.
Preferably, which further includes that at least traffic volume measurements unit, flow measuring unit is set to this
On at least one of sample body incoming line and the sample body outgoing line, to the sample body incoming line or the sample body delivery line
Negative pressure gas flow in road is measured.
Preferably, which also has an at least valve body, which is arranged in the sample body incoming line, the inspection
On at least one of test tube road and the sample body outgoing line, and the fluid sampling apparatus further includes that pipeline checks module, should
Pipeline checks module for enabling the valve body close in the sample body incoming line, the signal piping and the sample body outgoing line extremely
It is one few, when the valve body is in closed state, and the flow measuring unit measuring has negative pressure gas flow, judge the sample body ingress pipe
Road, the signal piping or the sample body outgoing line exist abnormal.
Preferably, which further includes flow measuring unit, which has suction end and exhaust end, should
Suction end is connected to the sample body outgoing line, and to provide the negative pressure gas flow to the sample body outgoing line, which is connected to the flow
Measurement unit, to provide positive pressure gas flow to the flow measuring unit, which carries out the flow of the positive pressure gas flow
It measures.
Preferably, which also has an at least valve body, which is arranged in the sample body incoming line, the inspection
On at least one of test tube road, the negative pressure pump and the sample body outgoing line, and the fluid sampling apparatus further includes that pipeline is looked into
Core module, the pipeline check module for enabling the valve body close the sample body incoming line, the signal piping, the negative pressure pump and be somebody's turn to do
At least one of sample body outgoing line, when the valve body is in closed state, and the flow measuring unit measuring has positive pressure gas flow
When, it is abnormal to judge that the sample body incoming line, the signal piping, the negative pressure pump or the sample body outgoing line exist.
Preferably, which further includes flow valve, which is set to the sample body incoming line or the sample
Body outgoing line, to control the flow of the negative pressure gas flow in the sample body incoming line or the sample body outgoing line.
Preferably, which further includes flow valve, which has suction end and exhaust end, the suction end
It is connected to the sample body outgoing line, to provide negative pressure gas flow to the sample body outgoing line, which is connected to the flow valve, to this
Flow valve provides positive pressure gas flow, which is controlled in the sample body outgoing line by controlling the flow of the positive pressure gas flow
Negative pressure gas flow flow.
Preferably, which further includes liquid measure sensor, and the filter has reservoir, reservoir storage
The liquid that the filter is filtered out is deposited, and the liquid measure sensor senses the liquid measure of the reservoir, which receives the liquid measure
The sensing result of sensor, when the liquid measure of the reservoir reaches warning value, which controls liquid discharge device execution
Operation.
Preferably, which has reservoir, which stores the liquid that the filter is filtered out, the control module
The liquid discharge device, which is controlled, in the predetermined time executes operation.
In conclusion fluid sampling apparatus of the invention passes through in sample body incoming line or the setting filtering of sample body outgoing line
Device, to filter out in sample fluid the impurity such as entrained liquid and particulate matter, to avoid sample fluid from having flowing through volatility
When low-temperature region inside machine species analysis device, the impurity such as entrained liquid or particulate matter are condensed in phase in sample fluid
It closes on circuit and elements, to avoid abnormal in associated pipe and component pollution and the damage of component etc..In addition, of the invention
Fluid sampling apparatus the sample fluid with negative pressure mode is imported by setting negative pressure pump, can avoid negative pressure pump by sample flow
The pollution of body, to prolong its service life.In addition, the present invention passes through setting testing mechanism also to detect volatile organic matter
Associated pipe or component inside analytical equipment whether there is abnormal leakage, to provide maintenance effect.
Detailed description of the invention
The square of Figure 1A, the various embodiments that Figure 1B, Fig. 2A, Fig. 2 B, Fig. 3 to Fig. 5 are fluid sampling apparatus of the invention
Schematic diagram；
Fig. 6 A is the setting framework rough schematic view of the first embodiment of fluid sampling apparatus of the invention；
Fig. 6 B is the setting framework rough schematic view of the second embodiment of fluid sampling apparatus of the invention；And
Fig. 6 C is the setting framework embodiment schematic diagram of fluid sampling apparatus of the invention.
Specific embodiment
The following contents will be illustrated technology contents of the invention by particular specific embodiment, and be familiar with this skill in conjunction with attached drawing
The personage of art can other advantages and efficacy of the present invention can be easily understood by content disclosed in the present specification.The present invention can also lead to
Other different specific embodiments are crossed to be implemented or applied.The various details in this specification may be based on different viewpoints and answer
With, without departing from the spirit of the present invention, the various modifications of progress and change.Especially, in attached drawing various components proportionate relationship
And relative position only has exemplary use, not represents the actual state that the present invention is implemented.
Below with reference to the specific framework and effect for respectively illustrating the fluid sampling apparatus that the present invention will be described in detail of the invention,
Wherein, the square signal of Figure 1A, the various embodiments that Figure 1B, Fig. 2A, Fig. 2 B, Fig. 3 to Fig. 5 are fluid sampling apparatus of the invention
Figure；Fig. 6 is the internal duct of fluid sampling apparatus of the invention and the setting framework embodiment schematic diagram of component.
Fluid sampling apparatus 1 of the invention is for being sampled sample fluid to be detected, in the embodiment of the present invention
In, sample fluid is, for example, industrial discharged waste gas, and fluid sampling apparatus 1 is volatile organic matter analytical equipment, for examining
Survey the concentration or component of volatile organic matter in industrial discharged waste gas.Please refer to Figure 1A and Figure 1B, fluid sampling of the invention
Device 1 mainly includes signal piping 11, sample body incoming line 12, sample body outgoing line 13, filter 14, negative pressure pump 15, liquid
Displacer 16 and control module 17.
Signal piping 11 is for the concentration or component in test sample fluid.In the present embodiment, signal piping 11 is arranged
Between sample body incoming line 12 and sample body outgoing line 13 (as shown in Figure 6A), have for the volatility in test sample fluid
The concentration or component of machine substance.Under normal conditions, signal piping 11 is set to around heating component (such as baking oven), i.e., in stream
The high-temperature area of body sampler 1.In one embodiment, such as sample bomb, sample point can be connected in signal piping 11
It is used to detect the concentration of volatile organic matter or the related detection assemblies of component from device, sample detector and introduction valve etc..
In addition, the setting schematic diagram of signal piping 11 and related detection assemblies can refer to part shown in the dotted line frame of Fig. 6 C.
12 communication with detection pipeline 11 of sample body incoming line, for sample fluid to be directed into signal piping 11.It please cooperate ginseng
Fig. 6 A and Fig. 6 C is read, in the present embodiment, sample body incoming line 12 may include from injection port to the pipeline between signal piping 11.
The sample fluid is exported signal piping 11 by 13 communication with detection pipeline 11 of sample body outgoing line.Please refer to
Fig. 6 A and Fig. 6 C, in the present embodiment, sample body outgoing line 13 are also at the low-temperature region of fluid sampling apparatus 1 comprising from
Signal piping 11 is to the pipeline between negative pressure pump 15.
Filter 14 may be disposed in sample body incoming line 12 (as shown in Figure 1B, Fig. 6 A), may also set up and exports in sample body
In pipeline 13 (as shown in Figure 1A or Fig. 6 A, Fig. 6 C), for filtering out the sample of sample body incoming line 12 or sample body outgoing line 13
Entrained liquid in fluid, and the gas in sample fluid is made to pass through sample body incoming line 12 or sample body outgoing line 13.It is excellent
Selection of land, filter 14 can also be used to filter out the shot-like particle in the sample fluid of sample body incoming line 12 or sample body outgoing line 13
Matter.
Specifically, filter 14 can be used for the impurity such as liquid or particulate matter entrained in filtered sample fluid, such as
Shown in Fig. 6 A or Fig. 6 C, wherein the gas in sample fluid is stored up by the liquid that filter 14 is isolated by gravity
It is stored in the lower space of filter 14.As described in aforementioned background art, due to sample body incoming line 12 or sample body outgoing line
13 are generally in the low-temperature region in volatile organic matter analytical equipment, therefore, when sample fluid is flowing through sample body ingress pipe
The impurity such as entrained liquid or particulate matter, which are easy to be condensed in sample body, when road 12 or sample body outgoing line 13, in sample fluid leads
On the tube wall for entering pipeline 12 or sample body outgoing line 13, and damages and be set to sample body incoming line 12 or sample body outgoing line 13
On associated component.Therefore, the present invention is by being arranged filter 14 in sample body incoming line 12 or sample body outgoing line 13, to have
Effect avoids sample fluid when flowing through sample body incoming line 12 or sample body outgoing line 13, liquid or grain entrained by sample fluid
The impurity such as shape substance are condensed on the tube wall of above-mentioned pipeline 12,13, and the problem of cause associated component to damage.
Negative pressure pump 15 is connected to sample body outgoing line 13, is used to provide negative pressure gas flow, so that sample fluid is imported from sample body
Pipeline 12 flows to sample body outgoing line 13 via signal piping 11, and receives via the separated sample fluid out of filter 14
In gas.Specifically, negative pressure pump 15 is set to the rear end of sample body outgoing line 13, the i.e. tail portion of fluid sampling apparatus 1, use
In providing negative pressure gas flow to sample body incoming line 12, signal piping 11 and sample body outgoing line 13, sample fluid is by negative pressure pump 15
Provided negative pressure gas flow is drawn into sample body incoming line 12, and is entered and carried out volatile organic matter in signal piping 11
It tests and analyzes, and the sample fluid after detecting continues through signal piping 11 and flows to sample body outgoing line 13.In addition, sample
Gas in fluid can then pass through negative pressure by the way that the filter 14 of sample body incoming line 12 or sample body outgoing line 13 is arranged in
Pump 15 and be emitted into the exterior space of fluid sampling apparatus 1.Whereby, sample fluid is imported using negative pressure mode due to the present invention,
Therefore negative pressure pump 15 can be set to the rear end of sample outgoing line 13, that is, the rear end of filter 14, so that negative pressure pump 15 is not
Vulnerable to the pollution of liquid or the impurity such as particulate matter in sample fluid, and damage.
Liquid discharge device 16 is connected to filter 14, the liquid filtered out for receiving filter 14.In the present embodiment, liquid
Body displacer 16 is peristaltic pump, and has connecting pipeline 161 (such as Fig. 5, Fig. 6 A or the figure of the low spot inside connection reservoir 141
Shown in 6C), liquid for being filtered out filter 14 from sample fluid via the first discharge outlet or the second discharge outlet with
It is emitted into the exterior space (as shown in Figure 6A) of fluid sampling apparatus 1.Since the structure design of peristaltic pump is with preferably airtight
Property to prevent from leaking, therefore the present invention can avoid the situation that flows backwards of filtered out liquid, and ensure fluid sampling apparatus 1
The running of internal component and pipeline is normal.
Control module 17 executes operation for controlling negative pressure pump 15 and liquid discharge device 16, in the present embodiment, controls mould
Block 17 be, for example, control chip, for control negative pressure pump 15 running to for sample body incoming line 12, sample body outgoing line 13 with
And signal piping 11 provides negative pressure gas flow, and is controlled for negative pressure pump 15, such as can be used for controlling the start-stop of negative pressure pump 15.
In addition, control module 17 is also used to control liquid discharge device 16, discharged in time for the liquid that filter 14 is filtered out.
Please refer to Fig. 2A and Fig. 2 B, in another embodiment, fluid sampling apparatus 1 further includes at least traffic volume measurements
Unit 18, wherein flow measuring unit 18 may be disposed on sample body incoming line 12 (as shown in Figure 2 A), or is set to sample body and leads
Out on pipeline 13 (as shown in Figure 2 B), in addition, can also be respectively set on sample body incoming line 12 and sample body outgoing line 13
Flow measuring unit 18 (as shown in Fig. 6 A or Fig. 6 C), to the negative pressure gas in sample body incoming line 12 or sample body outgoing line 13
Stream is measured, and is controlled accordingly by control module 17 for negative pressure gas flow provided by negative pressure pump 15.Wherein, flow amount
Surveying unit 18 may be, for example, suspended body flowmeter.
Please continue to refer to Fig. 2A and Fig. 2 B, in another embodiment, the present invention can also setting by flow measuring unit 18
It counts to detect the internal duct of fluid sampling apparatus 1 with the presence or absence of abnormal leakage.Specifically, fluid sampling apparatus 1 also has
An at least valve body 21, valve body 21 are optionally provided at sample body incoming line 12, sample body outgoing line 13 and signal piping
On at least one of 11, it can also be respectively set on sample body incoming line 12, sample body outgoing line 13 and signal piping 11
Valve body 21 (wherein, Fig. 2A and Fig. 2 B illustrates only the embodiment that valve body 21 is arranged on sample body incoming line 12).Fluid takes
Also there is sampling device 1 pipeline to check module 19, and pipeline, which checks module 19, can be used for that valve body 21 is enabled to close sample body incoming line 12, inspection
At least one of test tube road 11 and sample body outgoing line 13, when valve body 21 is in closed state, and flow measuring unit 18
Also measure in above-mentioned pipeline there are when negative pressure gas flow, that is, judge sample body incoming line 12, signal piping 11 or sample body export
There are abnormal leakages at least one of pipeline 13.
Please refer to Fig. 6 A, in the embodiment of the application, set at the injection port of 12 front end of sample body incoming line
It is equipped with valve body 21a, and is provided with flow measuring unit 18a on sample body incoming line 12, stream is provided on signal piping 11
Amount measurement unit 18b is provided with flow measuring unit 18c on sample body outgoing line 13.When execution pipeline is checked, pipeline is looked into
Core module 19 enables valve body 21a close, therefore, even if negative pressure pump 15 still carries out running, flow measuring unit 18a, 18b or 18c
Also negative pressure gas flow should not be measured, that is to say, that if in the state of valve body 21a closing, when flow measuring unit 18a is not measured
When measuring negative pressure gas flow, that is, can determine whether sample body incoming line 12 there is no leakage and be normal；When flow measuring unit 18b is not measured
When measuring negative pressure gas flow, that is, it can determine whether that signal piping 11 and sample body incoming line 12 there is no leakage are normal；When flow amount
When survey unit 18c does not measure negative pressure gas flow, that is, it can determine whether signal piping 11, sample body incoming line 12 and sample body outgoing line
13 there is no leakage and be normal.
In other words, when flow measuring unit 18a and flow measuring unit 18b do not measure negative pressure gas flow, and flow amount
When survey unit 18c measures negative pressure gas flow, that is, it can determine whether that there are abnormal leakages for sample body outgoing line 13；When flow measuring unit
When 18a and 18b measure negative pressure gas flow, then the negative pressure gas flow value that flow measuring unit 18a and 18b are measured is judged
Size, when the negative pressure gas flow value that flow measuring unit 18a and 18b are measured is roughly equal, then representative sample body incoming line
12 have leakage, and there is no exceptions for signal piping 11, when the negative pressure gas flow that flow measuring unit 18b is measured is greater than flow amount
When surveying the negative pressure gas flow that unit 18a is measured, then representative sample body incoming line 12 and signal piping 11 exist simultaneously abnormal leakage；
And when the negative pressure gas flow value that flow measuring unit 18c and 18b are measured is roughly equal, then it represents the presence of signal piping 11 and lets out
Leakage, and there is no exceptions for sample body outgoing line 13, when the negative pressure gas flow that flow measuring unit 18c is measured is greater than flow measuring list
When the negative pressure gas flow that first 18b is measured, then represents signal piping 11 and sample body export signal piping 13 exists simultaneously abnormal leakage.
It should be noted that the setting of valve body 21 and flow measuring unit 18 is shown in Fig. 6 A only and not only to be limited, other set-up modes
It can also be used.For example, in other embodiments, except valve body 21a is provided at the injection port of 12 front end of sample body incoming line, also
Valve body 21 can be set between sample body incoming line 12 and signal piping 11 respectively, and in signal piping 11 and sample body delivery line
Valve body is set between road 13, and flow measuring unit 18c only is set in sample body outgoing line 13, equally to reach what pipeline was checked
Effect.
Please continue to refer to Fig. 3, in another embodiment of the invention, negative pressure pump 15 also has suction end 151 and exhaust end
152, wherein suction end 151 is connected to sample body outgoing line 13, to provide negative pressure gas flow, exhaust end 152 to sample body outgoing line 13
It is connected to flow measuring unit 18, to provide positive pressure gas flow to flow measuring unit 18, flow measuring unit 18 is used for negative pressure pump
The flow of positive pressure gas flow provided by 15 is measured.Preferably, fluid sampling apparatus 1 also has an at least valve body 21, can
It is selectively disposed in depending on demand in sample body incoming line 12, signal piping 11, negative pressure pump 15 and sample body outgoing line 13
At least one on (wherein, Fig. 3 illustrates only the embodiment that valve body 21 is set on sample body incoming line 12), and fluid
Sampler 1 further includes having pipeline to check module 19, pipeline check module 19 for enable valve body 21 close sample body incoming line 12,
At least one of signal piping 11, negative pressure pump 15 and sample body outgoing line 13, when valve body 21 is in closed state, and flow
When the measurement of measurement unit 18 has positive pressure gas flow, sample body incoming line 12, signal piping 11, negative pressure pump 15 or sample body delivery line are judged
There are abnormal leakages on road 13.
Please refer to Fig. 6 B, in the present embodiment, suction end 151 refers to negative pressure pump 15 for being connected to sample body outgoing line
13 one end, exhaust end 152 refer to negative pressure pump 15 for being connected to one end of second exhaust port.Wherein, negative pressure pump 15 is directed to and is located at
The sample body outgoing line 13 of its front end provides negative pressure gas flow, and for pipeline (the i.e. second exhaust port and negative pressure positioned at its rear end
Pipeline between pump 15) positive pressure gas flow is provided, flow measuring unit 18d is arranged between second exhaust port and negative pressure pump 15
On pipeline, measured for the flow to negative pressure pump 15 for positive pressure gas flow provided by this section of pipeline.In addition, being led in sample body
Enter and is provided with valve body 21a at the injection port of 12 front end of pipeline；It is arranged in the junction of sample body incoming line 12 and signal piping 11
There is valve body 21b；The junction of signal piping 11 and sample body outgoing line 13 is provided with valve body 21c；In sample body outgoing line 13
Valve body 21d is provided between negative pressure pump 15；
When specific operation, valve body 21d is enabled to close firstly, pipeline checks module 19, sample body outgoing line 13 and negative pressure pump
Access between 15 is cut off, and in this case, flow measuring unit 18d can be judged by measuring whether have positive pressure gas flow
Negative pressure pump 15 whether there is abnormal leakage.Then, pipeline check module 19 enable valve body 21c closing (valve body 21d is in opening state
State), then the access between sample body outgoing line 13 and signal piping 11 is cut off, if in this case, in flow measuring unit
18d measurement has positive pressure gas flow, and has prejudged negative pressure pump 15 there is no when the exception of leakage, that is, can determine whether sample body outgoing line
13 there are the exceptions of leakage.And so on, module 19 is checked by pipeline, valve body 21b, valve body 21a is enabled to close respectively, with
Signal piping 11 and sample body incoming line 12 are gradually judged with the presence or absence of abnormal leakage, and it will not be described here.It should be noted that valve
Only and not only to be limited shown in Fig. 6 B, other set-up modes be can also be used for the setting of body 21 and flow measuring unit 18.
In the other embodiments of the application, fluid sampling apparatus 1 further includes having flow valve 20, wherein flow valve 20 is set
It sets in sample body incoming line 12 or is arranged on sample body outgoing line 13, to control sample body incoming line 12 or sample body delivery line
The flow of negative pressure gas flow in road 13.Specifically, in practical applications, flow valve 20 passes through sample body ingress pipe for adjusting
The uninterrupted of road 12 or the negative pressure gas flow in sample body outgoing line 13.Wherein, the visual actual demand of flow valve 20, and select to set
It sets in sample body incoming line 12, may also be arranged on sample body outgoing line 13, or using flow valve 20 to replace flow amount
Survey unit 18.
Please continue to refer to Fig. 4, in another embodiment of the invention, negative pressure pump 15 has suction end 151 and exhaust end
152, wherein suction end 151 is connected to sample body outgoing line 13, to provide negative pressure gas flow, exhaust end 152 to sample body outgoing line 13
It is connected to flow valve 20, to provide positive pressure gas flow to flow valve 20, flow valve 20 is controlled by controlling the flow of positive pressure gas flow
The flow of negative pressure gas flow in sample body outgoing line 13.
Specifically, please referring to Fig. 6 C, suction end 151 refers to negative pressure pump 15 for being connected to the one of sample body outgoing line 13
End, exhaust end 152 refer to negative pressure pump 15 for being connected to one end of second exhaust port.Wherein, negative pressure pump 15, which is directed to, is located at its front end
Sample body outgoing line 13 negative pressure gas flow is provided, and for positioned at its rear end pipeline (i.e. second exhaust port and negative pressure pump 15 it
Between pipeline) positive pressure gas flow is provided, (do not scheme on the pipeline that flow valve 20 may be provided between second exhaust port and negative pressure pump 15
Show), under normal circumstances, negative pressure pump 15, which provides negative pressure gas flow for sample body outgoing line 13, to be directed to second row with negative pressure pump 15
Positive pressure gas flow provided by pipeline between port and negative pressure pump 15 is suitable, therefore, can control second exhaust by flow valve 20
The flow of the positive pressure gas flow in pipeline between mouth and negative pressure pump 15, to indirectly control negative pressure pump 15 for sample body outgoing line 13
The flow of provided negative pressure gas flow.
Referring to Fig. 5, in the present embodiment, fluid sampling apparatus 1 further includes liquid measure sensor 22, and filter 14 has
Reservoir 141 is used to store the liquid that filter 14 is filtered out from sample fluid, and liquid measure sensor 22 is for sensing storage
Liquid measure in liquid bath 141, and control module 17 is also used to the sensing result of the liquid measure of receiving liquid quantity sensor 22, when liquid measure passes
When the liquid measure for the reservoir 141 that sensor 22 is sensed reaches warning value, control module 17 controls liquid discharge device 16 and executes work
Industry, the liquid stored in reservoir 141 is discharged.
In other embodiments, can also no setting is required liquid measure sensor 22, make the timing to schedule of control module 17
It controls liquid discharge device 16 and executes operation, the liquid stored in reservoir 141 is discharged.
In summary, the rear end of fluid sampling apparatus can be arranged in negative pressure pump by fluid sampling apparatus of the invention, utilized
Negative pressure pump imports sample fluid by negative pressure mode, and makes sample fluid by being arranged in sample body incoming line or sample body delivery line
The filter on road avoids institute in sample fluid to filter out the impurity such as liquid and particulate matter entrained in sample fluid whereby
The impurity such as the liquid and particulate matter of carrying are condensed on the components such as flowed through pipeline and negative pressure pump and cause associated component
Damage, so that associated pipe and component of the protection in low-temperature region be not by the pollution of the impurity such as liquid or particulate matter.
In addition, the present invention is additionally provided with flow measuring unit, by closing injection port, measures and whether deposited in associated pipe
In air-flow, and sample body incoming line, signal piping, negative pressure pump or sample body outgoing line are judged with the presence or absence of abnormal leakage, with true
Protect the normal operation of the associated pipe and component in fluid sampling apparatus.
The principle of the present invention and effect is only illustrated in above-described embodiment, and is not intended to limit the present invention.It is any to be familiar with
Without departing from the spirit and scope of the present invention, modifications and changes are made to the above embodiments by the personage of technique.Cause
This, the scope of the present invention should be as described in claim of the invention.
Symbol description
1 fluid sampling apparatus
11 signal pipings
12 sample body incoming lines
13 sample body outgoing lines
14 filters
141 reservoirs
15 negative pressure pumps
151 suction ends
152 exhaust ends
16 liquid discharge devices
161 connecting pipelines
17 control modules
18,18a, 18b, 18c, 18d flow measuring unit
19 pipelines check module
20 flow valves
21,21a, 21b, 21c, 21d valve body
22 liquid measure sensors.
Claims (11)
1. a kind of fluid sampling apparatus is used to be sampled sample fluid, the fluid sampling apparatus includes:
Signal piping, the signal piping are used to detect the concentration or component of the sample fluid；
Sample body incoming line, the sample body incoming line are connected to the signal piping, and the sample fluid is imported the inspection
Test tube road；
Sample body outgoing line, the sample body outgoing line are connected to the signal piping, and the sample fluid is exported the inspection
Test tube road；
Filter, the filter are arranged in the sample body incoming line or the sample body outgoing line, filter out the sample body and lead
Enter the liquid in the sample fluid of pipeline or the sample body outgoing line, and leads the gas in sample fluid by the sample body
Enter pipeline or the sample body outgoing line；
Negative pressure pump, the negative pressure pump are connected to the sample body outgoing line, and providing negative pressure gas flow makes the sample fluid from the sample
Body incoming line flows to the sample body outgoing line via the signal piping, and receives the gas that the filter is passed through
Body；
Liquid discharge device, the liquid discharge device is connected to the filter, and receives the liquid that the filter is filtered out；And
Control module, the control module controls the negative pressure pump and the liquid discharge device executes operation.
2. fluid sampling apparatus as described in claim 1, which is characterized in that the fluid sampling apparatus is volatile organic matter
Matter analytical equipment, and the signal piping detects the concentration or component of the volatile organic matter in the sample fluid.
3. fluid sampling apparatus as described in claim 1, which is characterized in that the filter can also filter out the sample body and import
Particulate matter in the sample fluid of pipeline or the sample body outgoing line.
4. fluid sampling apparatus as described in claim 1, which is characterized in that the fluid sampling apparatus further includes at least first-class
Amount measurement unit, the flow measuring unit are set in the sample body incoming line and the sample body outgoing line at least
On one, to be measured to the negative pressure gas flow in the sample body incoming line or the sample body outgoing line.
5. fluid sampling apparatus as claimed in claim 4, which is characterized in that the fluid sampling apparatus also has an at least valve
Body, the valve body are set at least one in the sample body incoming line, the signal piping and the sample body outgoing line
On a, and the fluid sampling apparatus further includes that pipeline checks module, and the pipeline checks module for enabling the valve body close
At least one of the sample body incoming line, the signal piping and described sample body outgoing line, when the valve body is in
Closed state, and when the flow measuring unit measuring has negative pressure gas flow, judge the sample body incoming line, the signal piping
Or there is exception in the sample body outgoing line.
6. fluid sampling apparatus as described in claim 1, which is characterized in that the fluid sampling apparatus further includes flow measuring
Unit, the negative pressure pump have suction end and exhaust end, and the suction end is connected to the sample body outgoing line, to the sample body
Outgoing line provides the negative pressure gas flow, and the exhaust end is connected to the flow measuring unit, to the flow measuring unit
Positive pressure gas flow is provided, the flow measuring unit measures the flow of the positive pressure gas flow.
7. fluid sampling apparatus as claimed in claim 6, which is characterized in that the fluid sampling apparatus also has an at least valve
Body, the valve body are set to the sample body incoming line, the signal piping, the negative pressure pump and the sample body outgoing line
At least one of on, and the fluid sampling apparatus further includes that pipeline checks module, and the pipeline checks module for enabling institute
Valve body is stated to close in the sample body incoming line, the signal piping, the negative pressure pump and the sample body outgoing line extremely
It is one few, when the valve body is in closed state, and the flow measuring unit measuring has positive pressure gas flow, judge the sample body
Incoming line, the signal piping, the negative pressure pump or the sample body outgoing line exist abnormal.
8. fluid sampling apparatus as described in claim 1, which is characterized in that the fluid sampling apparatus further includes flow valve,
The flow valve is set to the sample body incoming line or the sample body outgoing line, to control the sample body incoming line or institute
State the flow of the negative pressure gas flow in sample body outgoing line.
9. fluid sampling apparatus as described in claim 1, which is characterized in that the fluid sampling apparatus further includes flow valve,
The negative pressure pump has suction end and exhaust end, and the suction end is connected to the sample body outgoing line, to export to the sample body
Pipeline provides negative pressure gas flow, and the exhaust end is connected to the flow valve, to provide positive pressure gas flow, the flow to the flow valve
Valve controls the flow of the negative pressure gas flow in the sample body outgoing line by controlling the flow of the positive pressure gas flow.
10. fluid sampling apparatus as described in claim 1, which is characterized in that the fluid sampling apparatus further includes that liquid measure passes
Sensor, and the filter has reservoir, the reservoir stores the liquid that the filter is filtered out, and the liquid measure passes
Sensor senses the liquid measure of the reservoir, and the control module receives the sensing result of the liquid measure sensor, when the liquid storage
When the liquid measure of slot reaches warning value, the control module controls the liquid discharge device and executes operation.
11. fluid sampling apparatus as described in claim 1, which is characterized in that the filter has reservoir, the liquid storage
Slot stores the liquid that the filter is filtered out, and the control module controls the liquid discharge device in the predetermined time and executes work
Industry.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106129079A TWI654415B (en) | 2017-08-25 | 2017-08-25 | Fluid sampling device |
| TW106129079 | 2017-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109425514A true CN109425514A (en) | 2019-03-05 |
Family
ID=65514370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710995127.5A Pending CN109425514A (en) | 2017-08-25 | 2017-10-23 | fluid sampling device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109425514A (en) |
| TW (1) | TWI654415B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI732351B (en) * | 2019-11-20 | 2021-07-01 | 財團法人工業技術研究院 | Tube flow rate measurement system and method thereof |
| TWI732605B (en) * | 2020-06-22 | 2021-07-01 | 研能科技股份有限公司 | Minute quantity liquid detector |
Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4015821A1 (en) * | 1989-10-12 | 1991-11-21 | Sicherungsgeraetebau Gmbh | Leak indicator for double-walled storage container of dangerous liquid - has vacuum pump connected to monitoring vol via suction line with liquid detector, pressure dependent switch and alarm |
| JPH0425740A (en) * | 1990-05-21 | 1992-01-29 | Kodama Kogyo Kk | Operation control method by leak detection of discharge piping of submerged pump and its oiling device |
| JP2000206012A (en) * | 1999-01-11 | 2000-07-28 | Horiba Ltd | Gas sampling device |
| JP2002243572A (en) * | 2001-02-21 | 2002-08-28 | Osaka Gas Co Ltd | Method and device for inspecting piping leakage |
| CN1979116A (en) * | 2005-12-02 | 2007-06-13 | 财团法人工业技术研究院 | Sampling analysis device with powder filtering filtration function |
| CN101432613A (en) * | 2006-05-09 | 2009-05-13 | 住友精化株式会社 | Sample introduction system |
| JP2010071198A (en) * | 2008-09-18 | 2010-04-02 | Fts:Kk | Device and method for diagnosing failure of in-tank canister system |
| CN101713698A (en) * | 2009-07-27 | 2010-05-26 | 山东大学 | Vacuum leak detection system |
| JP2011133449A (en) * | 2009-03-31 | 2011-07-07 | Ibiden Co Ltd | Particle concentration measuring device |
| CN102182511A (en) * | 2011-01-21 | 2011-09-14 | 谢晓莉 | Positive pressure bundle pipe monitoring system for mine underground fire and toxic and harmful gases |
| CN201984059U (en) * | 2010-12-30 | 2011-09-21 | 中国电子科技集团公司第二十二研究所 | Gas preprocessing monitor and warning system |
| CN102518948A (en) * | 2011-12-28 | 2012-06-27 | 常州大学 | Device and method for detecting combustible gas leakage |
| CN103244833A (en) * | 2013-05-02 | 2013-08-14 | 常州大学 | Method and system for gas pipeline leakage detection and positioning |
| CN103486443A (en) * | 2013-10-15 | 2014-01-01 | 东北石油大学 | Oil and gas leakage detection simulation test system |
| CN103675213A (en) * | 2013-12-20 | 2014-03-26 | 华南理工大学 | Simulating device for fluid flow safety evaluation of oil-gas pipelines |
| KR101454733B1 (en) * | 2014-06-19 | 2014-10-27 | 김종석 | Pipe joint leakage checking apparatus using elastic tube |
| CN104122122A (en) * | 2014-07-31 | 2014-10-29 | 中国环境科学研究院 | Pressure stabilizing sampling device |
| CN104165967A (en) * | 2013-05-17 | 2014-11-26 | 公益财团法人日本汽车运输技术协会 | Exhaust gas analysis system and exhaust gas leak detecting method |
| CN104569308A (en) * | 2014-12-29 | 2015-04-29 | 江苏永钢集团有限公司 | Analysis and detection device of oxygen content in converter gas |
| CN105026927A (en) * | 2012-12-21 | 2015-11-04 | 安尼奥利亚公司 | Device and method for differentiating a gas in a sample |
| CN105158419A (en) * | 2015-08-25 | 2015-12-16 | 江苏远望仪器有限公司 | Pumping type gas sampling monitoring device |
| CN105527134A (en) * | 2016-01-07 | 2016-04-27 | 淄博祥龙测控技术有限公司 | Positive-pressure sampling pump station for sampling system |
| CN105692204A (en) * | 2009-02-27 | 2016-06-22 | 北京银融科技有限责任公司 | Pneumatic pipeline conveying system and method |
| CN106198825A (en) * | 2015-04-30 | 2016-12-07 | 深圳鸿旺环保技术有限公司 | Volatile organic substance measuring system with multiple independent measuring subsystems |
| CN106198118A (en) * | 2015-04-30 | 2016-12-07 | 深圳鸿旺环保技术有限公司 | Volatile organic substance measuring system |
| JP2016217359A (en) * | 2016-09-30 | 2016-12-22 | 株式会社デンソー | Abnormality detection device |
| CN106979113A (en) * | 2016-01-19 | 2017-07-25 | 现代自动车株式会社 | For the method and apparatus for the failure for diagnosing separate type oil gas injected system |
-
2017
- 2017-08-25 TW TW106129079A patent/TWI654415B/en active
- 2017-10-23 CN CN201710995127.5A patent/CN109425514A/en active Pending
Patent Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4015821A1 (en) * | 1989-10-12 | 1991-11-21 | Sicherungsgeraetebau Gmbh | Leak indicator for double-walled storage container of dangerous liquid - has vacuum pump connected to monitoring vol via suction line with liquid detector, pressure dependent switch and alarm |
| JPH0425740A (en) * | 1990-05-21 | 1992-01-29 | Kodama Kogyo Kk | Operation control method by leak detection of discharge piping of submerged pump and its oiling device |
| JP2000206012A (en) * | 1999-01-11 | 2000-07-28 | Horiba Ltd | Gas sampling device |
| JP2002243572A (en) * | 2001-02-21 | 2002-08-28 | Osaka Gas Co Ltd | Method and device for inspecting piping leakage |
| CN1979116A (en) * | 2005-12-02 | 2007-06-13 | 财团法人工业技术研究院 | Sampling analysis device with powder filtering filtration function |
| CN101432613A (en) * | 2006-05-09 | 2009-05-13 | 住友精化株式会社 | Sample introduction system |
| JP2010071198A (en) * | 2008-09-18 | 2010-04-02 | Fts:Kk | Device and method for diagnosing failure of in-tank canister system |
| CN105692204A (en) * | 2009-02-27 | 2016-06-22 | 北京银融科技有限责任公司 | Pneumatic pipeline conveying system and method |
| JP2011133449A (en) * | 2009-03-31 | 2011-07-07 | Ibiden Co Ltd | Particle concentration measuring device |
| CN101713698A (en) * | 2009-07-27 | 2010-05-26 | 山东大学 | Vacuum leak detection system |
| CN201984059U (en) * | 2010-12-30 | 2011-09-21 | 中国电子科技集团公司第二十二研究所 | Gas preprocessing monitor and warning system |
| CN102182511A (en) * | 2011-01-21 | 2011-09-14 | 谢晓莉 | Positive pressure bundle pipe monitoring system for mine underground fire and toxic and harmful gases |
| CN102518948A (en) * | 2011-12-28 | 2012-06-27 | 常州大学 | Device and method for detecting combustible gas leakage |
| CN105026927A (en) * | 2012-12-21 | 2015-11-04 | 安尼奥利亚公司 | Device and method for differentiating a gas in a sample |
| CN103244833A (en) * | 2013-05-02 | 2013-08-14 | 常州大学 | Method and system for gas pipeline leakage detection and positioning |
| CN104165967A (en) * | 2013-05-17 | 2014-11-26 | 公益财团法人日本汽车运输技术协会 | Exhaust gas analysis system and exhaust gas leak detecting method |
| CN103486443A (en) * | 2013-10-15 | 2014-01-01 | 东北石油大学 | Oil and gas leakage detection simulation test system |
| CN103675213A (en) * | 2013-12-20 | 2014-03-26 | 华南理工大学 | Simulating device for fluid flow safety evaluation of oil-gas pipelines |
| KR101454733B1 (en) * | 2014-06-19 | 2014-10-27 | 김종석 | Pipe joint leakage checking apparatus using elastic tube |
| CN104122122A (en) * | 2014-07-31 | 2014-10-29 | 中国环境科学研究院 | Pressure stabilizing sampling device |
| CN104569308A (en) * | 2014-12-29 | 2015-04-29 | 江苏永钢集团有限公司 | Analysis and detection device of oxygen content in converter gas |
| CN106198825A (en) * | 2015-04-30 | 2016-12-07 | 深圳鸿旺环保技术有限公司 | Volatile organic substance measuring system with multiple independent measuring subsystems |
| CN106198118A (en) * | 2015-04-30 | 2016-12-07 | 深圳鸿旺环保技术有限公司 | Volatile organic substance measuring system |
| CN105158419A (en) * | 2015-08-25 | 2015-12-16 | 江苏远望仪器有限公司 | Pumping type gas sampling monitoring device |
| CN105527134A (en) * | 2016-01-07 | 2016-04-27 | 淄博祥龙测控技术有限公司 | Positive-pressure sampling pump station for sampling system |
| CN106979113A (en) * | 2016-01-19 | 2017-07-25 | 现代自动车株式会社 | For the method and apparatus for the failure for diagnosing separate type oil gas injected system |
| JP2016217359A (en) * | 2016-09-30 | 2016-12-22 | 株式会社デンソー | Abnormality detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI654415B (en) | 2019-03-21 |
| TW201913062A (en) | 2019-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106770951B (en) | Super low concentration smoke on-line monitoring system and analysis method | |
| CN206208858U (en) | The double-pump type gas-detecting device of multichannel rapid aeration | |
| TWI395938B (en) | Gas mixing apparatus | |
| KR20150047097A (en) | Multi sampling port monitoring apparatus for air pollution measuring and monitoring method for using the same | |
| CN201935838U (en) | Aerosol sampling device applicable to high-temperature, high-pressure and high-humidity pipeline environment | |
| CN205175984U (en) | Area is from cleaning function's continuous tracer gas detector | |
| US20160202138A1 (en) | Self-Cleaning Particle Filter in a Sniffer Probe | |
| KR101955512B1 (en) | Air intake type gas detecting apparatus | |
| CN106442890A (en) | Multichannel rapid air changing double-pump type gas detecting device | |
| CN107356458A (en) | A kind of online air detection sample drying and control system | |
| CN102636322B (en) | Gas tightness/air permeability automatic detecting device for infusion apparatus and detecting method utilizing same | |
| KR20180080752A (en) | Apparatus for measuring smoke of car | |
| CN109425514A (en) | fluid sampling device | |
| CN207516208U (en) | Gas-detecting device | |
| CN210665422U (en) | Automatic zero calibration device for measuring particulate matters by laser scattering method | |
| CN108318405A (en) | Filter membrane/filter cylinder arresting efficiency and resistance detection device | |
| CN205333511U (en) | Oil gas concentration short -term test appearance | |
| CN207408176U (en) | Fluid sampling device | |
| CN207601028U (en) | A kind of simple gas-chromatography gas circuit | |
| CN206832780U (en) | A kind of wasted nickel catalyst device | |
| CN202562713U (en) | Automatic detecting device for air impermeability/ air permeability of infusion apparatus | |
| CN209327301U (en) | A kind of pico-stations monitor | |
| US5324344A (en) | System for and method to verify proper operation of a particulate emission detector | |
| TWI657887B (en) | ALL-IN-ONE VOCs MEASUREMENT INSTRUMENT | |
| CN212904782U (en) | Fixed pollution sources VOCs on-line monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |