CN109060464A - Sampler and measuring device for the measurement of gravimetric method smoke moisture - Google Patents
Sampler and measuring device for the measurement of gravimetric method smoke moisture Download PDFInfo
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- CN109060464A CN109060464A CN201811148775.8A CN201811148775A CN109060464A CN 109060464 A CN109060464 A CN 109060464A CN 201811148775 A CN201811148775 A CN 201811148775A CN 109060464 A CN109060464 A CN 109060464A
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- 238000000034 method Methods 0.000 title claims abstract description 57
- 239000000779 smoke Substances 0.000 title claims abstract description 44
- 238000005259 measurement Methods 0.000 title claims abstract description 34
- 238000005070 sampling Methods 0.000 claims abstract description 97
- 238000012546 transfer Methods 0.000 claims abstract description 32
- 230000001133 acceleration Effects 0.000 claims abstract description 25
- 238000009833 condensation Methods 0.000 claims abstract description 11
- 230000005494 condensation Effects 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000018044 dehydration Effects 0.000 claims abstract description 4
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 4
- 238000005057 refrigeration Methods 0.000 claims description 85
- 238000010438 heat treatment Methods 0.000 claims description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000002274 desiccant Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 239000004065 semiconductor Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 239000010419 fine particle Substances 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000005485 electric heating Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 77
- 238000001514 detection method Methods 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 208000033748 Device issues Diseases 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 235000012149 noodles Nutrition 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 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
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- 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
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
-
- 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
- G01N2001/2282—Devices for withdrawing samples in the gaseous state with cooling means
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- 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
The present invention relates to the sampler measured for gravimetric method smoke moisture and measuring devices.Sampler includes sequentially connected sampling feeler lever, sample gas transfer line, condenser, drier, sampling pump, flowmeter, emptying extension tube, wherein, sampling pump is for providing pumping power, sample gas is acquired by sampling feeler lever, condenser, which is transmitted to, through sample gas transfer line carries out condensation dehydration, it dehumidifies again through drier, then by cmf record flow and adds up total sampling volume, last sample gas passes through emptying extension tube discharge.Measuring device includes: spring, oscillator platform, acceleration transducer and above-mentioned sampler, wherein, one end of spring is installed on casing, is fixedly installed oscillator platform on the other end, in sampler in addition to sampling feeler lever and sample gas transfer line other parts all integrated installations on oscillator platform；Acceleration transducer is set on oscillator platform, for measuring vibration frequency.Present invention optimization, the moisture measurement process for simplifying entire gravimetric method.
Description
Technical field
The present invention relates to a kind of novel sampler measured for gravimetric method smoke moisture and use the sampler
Measuring device for gas humidity measurement in environmental gas or fixed-contamination source emission exhaust gas, while being also applied for low coagulation point
Gas collecting measurement.
Background technique
Smoke moisture is one of the important parameter of determining flue gas operating condition, and direct relation is total to Pollutant emission concentration and discharge
Meter, which measures, to be calculated.
There are many kinds of the methods of gas humidity measurement, but gravimetric method is the pedestal method being widely recognized as, but due to weight
The complexity of the theoretical process of method causes to realize difficulty based on gravimetric method moisture measurement product, and execute-in-place is cumbersome, and measurement is caused to be tied
Fruit deviation is big.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of adopting for the measurement of gravimetric method smoke moisture
Sample device, another object is to provide a kind of gravimetric method smoke moisture measuring device using the sampler, by gravimetric method measuring moisture
Theoretical flow chart be implemented as practical process of gas path, and automatic weighing, automatic conversion humidity etc. are realized on the basis of gravimetric method
Function enormously simplifies the operation of gravimetric method measuring moisture.
To achieve the above object, the invention adopts the following technical scheme:
It is a kind of for gravimetric method smoke moisture measurement sampler, the sampler include sequentially connected sampling feeler lever,
Sample gas transfer line, condenser, drier, sampling pump, flowmeter, emptying extension tube, wherein the sampling pump is for providing pumping
Aerodynamic force, sample gas are acquired by the sampling feeler lever, are transmitted to the condenser through the sample gas transfer line and are carried out condensation dehydration,
It dehumidifies again through the drier, then by cmf record flow and adds up total sampling volume, the last sample gas passes through described
Empty extension tube discharge；Wherein, the moisture content removed through the condenser remaines in the condenser, dehumidifies through the drier
Moisture content remain in the drier.
In above-mentioned sampler, the sampling feeler lever is hot type sampling feeler lever, the sample as a preferred implementation manner,
Gas transfer line is hot type transfer line；The drier is drying tube, and inside is placed with the desiccant with indicative function.
In above-mentioned sampler, the sampler as a preferred implementation manner, further include: humidity sensor is set to
After the drier, for measuring the humidity of vent gas.
In above-mentioned sampler, the sampler as a preferred implementation manner, further include: pressure sensor is set to
After the drier, before the sampling pump, for measuring the sample atmospheric pressure in pipeline.
In above-mentioned sampler, the sampler as a preferred implementation manner, further include: fine filter, entrance with
The outlet of the drier connects, and for filtering out the fine particle in sample gas, protects subsequent component.
In above-mentioned sampler, the condenser includes the heat-exchange tube passed through for sample gas as a preferred implementation manner,
And refrigeration section, the heat-exchange tube include heat-exchange tube entrance, heat-exchange tube outlet and are set to the heat-exchange tube entrance
Heat exchange cup between the heat-exchange tube outlet；The refrigeration section is arranged, for freezing around the heat exchange cup；It is described
The closed container in heat exchange bottom of a cup portion, for accommodating the condensed water retained from sample gas；
Preferably, the refrigeration section is one and is integrated with the cold well of refrigeration part and heating element, and the cold well has heat
Exchange cup receiving portion is used to accommodate the heat exchange cup of the condenser；The cooling module is semiconductor chilling plate or compression mechanism
Device for cooling, the heating elements are electric heating heater, heating rod or heating film.
A kind of gravimetric method smoke moisture measuring device, the measuring device include: spring, oscillator platform, acceleration sensing
Device and above-mentioned sampler；Wherein,
One end of the spring is installed on casing, and oscillator platform is fixedly installed on the other end；
In the sampler other than the sampling feeler lever and the sample gas transfer line other parts all integrated installations in
On the oscillator platform；
The acceleration transducer is arranged on be set forth in oscillator platform, for measuring vibration frequency.
In above-mentioned gravimetric method smoke moisture measuring device, the measuring device as a preferred implementation manner, further include:
Controller；
The controller is connect with the acceleration transducer, the sampler, for according to the acceleration transducer,
Instruction whether the delivering sampling operation of the sampler output stops, reading numerical values and COMPREHENSIVE CALCULATING smoke moisture；
Preferably, controller is PLC or single-chip microcontroller.
In above-mentioned gravimetric method smoke moisture measuring device, the measuring device as a preferred implementation manner, further include:
Refrigeration section temperature sensor；Wherein, the refrigeration section temperature sensor is set in the refrigeration section, and is connected with the controller
It connects, is sent to the controller for measuring the actual temperature of the refrigeration section and result will be measured；The input of the controller
End is connect with the output end of the refrigeration section temperature sensor, and the power supply of the output end of the controller and the refrigeration section connects
It connects, the controller receives the information of refrigeration section temperature sensor output, and by the actual temperature of the refrigeration section received
With refrigeration section temperature comparisons preset in the controller, the controller is issued according to comparing result and is instructed described in control
The operating mode of refrigeration section:
When the actual temperature of the refrigeration section is higher than preset refrigeration section temperature in the controller, the control
Device issues the instruction for starting refrigeration to the power control relay of the refrigeration part of the refrigeration section；When the reality of the refrigeration section
Temperature lower than in the controller when preset refrigeration section temperature, heating element from controller to the refrigeration section power supply
Control relay issues the instruction begun to warm up.
In above-mentioned gravimetric method smoke moisture measuring device, the measuring device as a preferred implementation manner, further include:
Complete machine heating device is set on the casing of the gravimetric method smoke moisture measuring device, for ensuring the gravimetric method
Inside smoke moisture measuring device within the scope of normal working temperature；
Preferably, the complete machine heating device include: heating component, the current supply circuit being connect with the heating component and with
The temperature detect switch (TDS) of the current supply circuit connection, the heating component to the gravimetric method smoke moisture measuring device complete machine for adding
Heat, the current supply circuit are used to power to the heating component, the temperature detect switch (TDS) for control heating component heating with
It is no；
It is highly preferred that the complete machine heating device further include: it is wet to be set to the gravimetric method flue gas for environment temperature sensor
It spends on the casing of measuring device, and is connect with the controller, for measuring environment temperature and sending measurement result to
The controller；The controller is also connect with the temperature detect switch (TDS)；The controller receives the environment temperature sensor and passes
The ambient temperature information sent, and work as actual measurement it is determined whether to enable the temperature detect switch (TDS) for controlling the heating component accordingly
Environment temperature lower than preset ambient temperature value in controller, then the controller issues and opens the temperature detect switch (TDS)
Instruction is with heating pretreatment device；When the environment temperature of actual measurement reaches preset ambient temperature value, the control
Device issues the instruction of the closing temperature detect switch (TDS) to stop continuing to heat and keep the instruction of the temperature.
Technical solution provided by the invention has the benefit that
(1) the unidirectional refrigeration module original using constant temperature deep cooling module substitution, has also been enlarged gravimetric method humidity measuring instrument
To the adaptability of environment temperature；
(2) for the sampling validity requirement at scene, judged using pressure sensor and flow meter, be may be implemented pair
Sample the air-leakage test function of gas circuit；
(3) increase evacuation port humidity sensor, Humidity Detection can be carried out to evacuation port sample gas, sample states be carried out comprehensive
Judgement is closed, realizes that sampling ends automatically；
(4) moisture in sample gas is sufficiently collected using condenser and drier twin-stage water removal mode；
(5) fine filter is placed on sampling pump front end, reaches adopting of being also effectively protected while filtering out particulate matter
The components such as sample pump, flowmeter, pressure sensor, humidity sensor；
(6) tradition is changed using oscillator check weighing mode and weighs mode in the balance, improve the adaptability that device context uses；Benefit
Oscillation is detected with acceleration transducer, the variation of oscillator quality is calculated by the variation of detection frequency, realization does not utilize
Balance can measure the quality for collecting condensed water；
(7) increase the heating temperature control module of complete machine, so that being may insure inside equipment at low ambient temperatures in normal work
Make in temperature range.
Detailed description of the invention
Fig. 1 is the flow chart in the preferred embodiment of the present invention for the sampler of gravimetric method moisture measurement；
Fig. 2 is gravimetric method humidity measuring instrument schematic diagram in the preferred embodiment of the present invention；
Fig. 3 is the schematic elevation view of constant-temperature condensation device in the preferred embodiment of the present invention；
Fig. 4 is the left view schematic diagram of constant-temperature condensation device in Fig. 3；
Fig. 5 is the schematic top plan view of constant-temperature condensation device in Fig. 3；
Fig. 6 is the stereoscopic schematic diagram of constant-temperature condensation device in Fig. 3；
In figure, 1- sampling feeler lever, 2- sample gas transfer line, 3- condenser heat exchange tubes connector, 4- condenser, 5- first connect
Adapter tube, 6- drier, the second connecting tube of 7-, the first BULKHEAD UNION of 8-, 9- third connecting tube, 10- fine filter, 11- the 4th
Connecting tube, 12- pressure sensor, the 5th connecting tube of 13-, 14- humidity sensor, the 6th connecting tube of 15-, 16- sampling pump, 17-
7th connecting tube, 18- flowmeter, the 8th connecting tube of 19-, the second BULKHEAD UNION of 20-, 21- emptying extension tube, 22- oscillator platform,
23- spring, 24- acceleration transducer, 25- complete machine casing, 41- heat-exchange tube, 411- heat-exchange tube entrance, 412- heat are handed over
Change cup, the outlet of 413- heat-exchange tube, the cold well ontology of 42-, 421- heat exchange cup receiving portion, 422- heating rod hole location, 423- temperature
Sensor hole location, 43- cooling fin, 44- fan.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
In the description of the present invention, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the present invention rather than require the present invention that must be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.Term used in the present invention " connected ", " connection ", " setting " shall be understood in a broad sense, for example, it may be solid
Fixed connection, may be a detachable connection；It can be directly connected, can also be indirectly connected by intermediate member；It can be
Line electrical connection, radio connection are also possible to wireless communication signals connection and are also possible to wireless communication signals connection；For ability
For the those of ordinary skill in domain, the concrete meaning of above-mentioned term can be understood as the case may be.
Referring to Fig. 1, provided by the present invention for a kind of preferred embodiment of the sampler of gravimetric method smoke moisture measurement,
Including sequentially connected sampling feeler lever 1, sample gas transfer line 2, condenser 4, drier 6, sampling pump 16, flowmeter 18, emptying
Extension tube 21, wherein after sampling pump 16 starts, sample gas is acquired by sampling feeler lever 1, is transmitted to condenser 4 through sample gas transfer line 2
Condensation dehydration is carried out, then is further dehumidified through drier 6, then and by flowmeter 18 records flow, last sample gas passes through emptying
Extension tube 21 is discharged；The moisture content removed through the condenser remaines in the condenser, the moisture content to dehumidify through the drier
It remaines in the drier.The above component is illustrated one by one below.
Sampling feeler lever 1 is used to acquire the flue gas (i.e. sample gas) of humidity to be measured；The entrance of sample gas transfer line 2 and sampling are visited
Bar 1 connects, and outlet is connect by condenser heat exchange tubes connector 3 with condenser 4, is used for transmission the sample gas of the acquisition of sampling feeler lever 1
To condenser 4.If sampler uses at low ambient temperatures, common sampling feeler lever and sample gas transfer line do not have heating function
Can, may lose vapor in component, such as transmission process in sample gas transmission process can be condensed into drop, after can not being collected into
It weighs in the condenser 4 and drier 6 at end, be easy to cause measurement error；Therefore, sampling feeler lever 1 is preferably that hot type is adopted
Sample feeler lever, sample gas transfer line 2 are preferably hot type transfer line；Specifically, hot type sampling feeler lever and heated pattern gas pass
Defeated pipeline is further added by heat preservation for example, can wind for the outer layer of common sampling feeler lever and sample gas transfer line using heater strip
Layer, heater strip are connect with external power supply, and carry out feedback control using temperature sensor, that is, such as temperature sensor measurement temperature
More than set temperature, then powers off, stops heating, if temperature sensor measurement temperature is lower than set temperature, then electrified regulation, so
Guarantee can work under normal temperature environment always regardless of external temperature, sampling feeler lever and sample gas transfer line, to mention
Adaptability of the high gravimetric method humidity measuring instrument provided by the present application to environment temperature.
Condenser 4 includes the heat-exchange tube 41 passed through for sample gas and refrigeration section, and heat-exchange tube 41 includes heat-exchange tube entrance
411, heat-exchange tube outlet 413 and the heat exchange cup being set between heat-exchange tube entrance 411 and heat-exchange tube outlet 413
412, refrigeration section around heat exchange cup 412 setting, for freezing, heat exchange cup 412 be the closed container in bottom, for accommodate from
The condensed water retained in sample gas；Wherein, heat-exchange tube entrance 411 passes through condenser heat exchange tubes connector 3 and sample gas transfer line 2
Outlet connection, outlet 413 is connect by the first connecting tube 5 with the entrance of drier 6；When sample air-flow is handed over through the heat of condenser 4
When changing pipe 41, i.e., sample gas enters from heat-exchange tube entrance 411, stops and is condensed in heat exchange cup 412, is then handed over by heat
413 outflow of pipe outlet is changed, most of vapor in sample gas, which is condensed, to be collected in heat exchange cup 412, remaining small part water
Steam is then as sample gas enters drier 6.
The entrance of drier 6 is connect by the first connecting tube 5 with the heat-exchange tube of condenser 4 outlet 413, outlet and sampling
16 connection of pump, the sample gas for exporting to condenser 4 carry out depth dehumidifying, i.e. the sample gas water remaining when flowing through drier 6 steams
Gas is absorbed.In a specific embodiment of the present invention, drier 6 is U-shaped drying tube or other shapes with similar functions
Drying tube, inside are placed with desiccant, and remaining vapor is absorbed by desiccant in sample gas；Further, desiccant refers to for band
The desiccant being shown as, such as the desiccant including the silica gel that changes colour, can make moisture removal in gas have to specified moisture value
It qualitatively judges.The water in sample gas can more sufficiently be collected using condenser 4 and the concatenated twin-stage of drier 6 water removal mode in the application
Point.
Sampling pump 16, entrance are connect with the outlet of drier 6, and outlet is connect with the entrance of flowmeter 18, for mentioning
For being evacuated power；In application, being extracted through sample gas by sampling pump 16, sampling feeler lever 1, sample gas transfer line 2, condenser are flowed through all the way
4, drier 6 etc. is pumped to emptying.Sampling pump 16 is preferably anti-negative pressure sampling pump.
Flowmeter 18 is set to after sampling pump 16, and entrance is connect with the outlet of sampling pump 16, and outlet is prolonged with emptying
Long tube 21 connects, for measuring the flow of vent gas and adding up total sampling volume (sampling volume under standard state).Flow
Meter 18 preferably mass flowmenter or other high-precision charged signal output stream meters.
Preferably, above-mentioned sampler further include: humidity sensor 14, after being set to drier 6, before sampling pump 16
(also can be set after sampling pump 16), for measuring the humidity of the sample gas (i.e. final vent gas) after depth dehumidifies,
The humidity value judges whether that emptying humidity transfinites, and stops sampling if transfiniting as Quality Control parameter；If transfinited, theoretically
This humidity value can be included in formula and be calculated, the purpose of gravimetric method exactly gets off all vapor all absorptive collections
Weighing, but always wetly loss in reality, i.e., theoretically can carry out integral operation for flow and humidity at the very start simultaneously,
The weight of moisture being lost, but since in setting limits, which influences very little to entire measurement result,
So not being included in temporarily in embodiments herein in last smoke moisture calculating；Specifically, of the invention excellent
Select in embodiment, humidity sensor 14 be set to drier 6 after, before sampling pump 16, i.e., the entrance of humidity sensor 14 with
The outlet of drier 6 connects, and outlet is connect with sampling pump 16.Using high-precision humidity sensor 14, quantitative measurment emptying
The sample air humidity degree of mouth, and increase and judge automatically humidity more than sampling is stopped after setting value, it avoids draining excessive moisture, causes to measure
Error, in other words, humidity sensor 14 can be connect with controller, the sample air humidity of 14 real-time monitoring evacuation port of humidity sensor
Degree, and this signal is transferred to controller, controller judges whether humidity is more than setting humidity limit value after reading this signal, such as
It is set as -10 DEG C (using dew-point temperature Dew Point Temperature, settable), if being higher than setting value, controller stops
Only sampling pump, and calculate sample air humidity degree.
Preferably, above-mentioned sampler further include: pressure sensor 12 is set to before sampling pump 16, for measuring pipeline
In sample atmospheric pressure.Thus, it is possible to can be better achieved using pressure sensor 12 and the combination judgement of flowmeter 16 to sampling
The air-leakage test function of gas circuit.The setting of pressure sensor 12 or not in theory, the moisture measurement of whole device is not influenced
Function, but sampled since the moisture of sample collection is micro, and using negative pressure, so it is high to whole system air-tightness requirement,
Else if thering is air to leak into will affect measurement result, therefore in order to better ensure that the air-tightness of sampler, improve measurement
Accuracy is preferably provided with pressure sensor 12.
Due to the desiccant in drier 6 be it is powdered, may there is small part to be transported to rear end along airflow direction, pollute
The component of rear end, it is therefore preferred that above-mentioned sampler further include: fine filter 10, entrance are connect with the outlet of drier 6,
For filtering out the fine particle in sample gas, subsequent component is protected；In the present invention, fine filter 10 is placed on sampling pump
16 front end there is provision of in the case where being equipped with pressure sensor 12 and humidity sensor 14 in pressure sensor 12 and wet
It spends before sensor 14, to be also effectively protected the component of rear end such as pressure sensor 12, wet while filtering out particulate matter
Spend sensor 14, sampling pump 16 and flowmeter 18 etc..
Preferably, in above-mentioned gravimetric method smoke moisture measuring device, condenser 4 is constant-temperature condensation device, be may be implemented two-way
Temperature controlled function, so that the temperature of condenser 4 can be constant in set temperature.Refrigeration in i.e. above-mentioned condenser 4
Portion is one and is integrated with the cold well of refrigeration part and heating element；In other words, above-mentioned refrigeration section include cold well ontology 42, setting exist
Cold 42 periphery of well ontology or internal refrigeration part and the heating element that cold 42 periphery of well ontology or inside are set, wherein cold
Well ontology 23 is the metal block with heat exchange cup receiving portion 421, and heat exchange cup receiving portion 421 is used to accommodate the heat of condenser 4
Exchange cup 412, shape, size and the heat exchange cup 412 of heat exchange cup receiving portion 421 match, refrigeration part for freeze with
The temperature of condenser 4 is reduced, refrigeration part can be the semiconductor chilling plate that cold 42 periphery of well ontology is arranged in, be also possible to set
Set the compressor condenser refrigerating evaporator in cold 42 inside of well ontology and being spirally circumferentially positioned at 412 periphery of heat exchange cup
(for example tubule canoe can be used or use extra heavy pipe shape evaporating dish), can also be the heat dissipation outside cold well ontology 42
Piece 43 and the fan 44 outside cooling fin 42；For heating element for heating to increase the temperature of refrigeration section, heating element can
To be that heating rod inside cold well ontology 42, heating film etc. is arranged in.Cold well ontology 42 is preferably made of aluminium block, it is general and
Speech mills out certain diameter, cylindric receiving portion on aluminium block, heat exchange cup 412 is inserted, 412 outer wall of heat exchange cup
Contacted with the inner wall of the heat exchange cup receiving portion 421 of cold well, high-temperature flue gas inside heat exchange cup by when can fast cooling it is de-
Water.
The application also provides a kind of gravimetric method smoke moisture measuring device using the sampler.
Referring to fig. 2, which specifically includes that spring 23, oscillator platform 22, acceleration to a kind of its preferred embodiment
Sensor 24 and above-mentioned sampler；Wherein, one end of spring 23 is installed on complete machine casing 25, is fixedly installed on the other end
There is oscillator platform 22；In addition to sampling feeler lever 1 and the outer other parts of sample gas transfer line 2 all integrated installations are flat in oscillator in sampler
On platform 22；Acceleration transducer 24 is set on oscillator platform 22, for measuring vibration frequency.In other words, the measuring device is real
Matter constitutes a spring oscillator check weighing system, and oscillator platform and all components installed thereon are fixed together, and and spring
The other end fixation collectively form oscillator.In use, by comparison sample front and back mass-spring system vibration frequency variation come
Oscillator weight change amount is calculated, to determine that condenser 4 and drier 6 collect the weight of moisture in total, is counted in conjunction with flowmeter 18
The accumulative total gas volume flowed through of calculating can determine the humidity value in sample gas；Specific Computing Principle is as follows:
According to Newton's second law, the frequency of mass-spring model is only related with oscillator weight and spring rate, and relationship is such as
Under:
Wherein,
The frequency (Hz) of f------------ mass-spring model；
K------------ spring rate (N/m)；
M------------ oscillator total weight (g).
According to model above, following formula can be obtained and calculate smoke moisture:
Wherein,
Δ m is that moisture increases weight (g)；
V is flowmeter cumulative volume mark condition lower volume (L)；
f0For the vibration frequency (Hz) for sampling the preceding mass-spring system measured by acceleration transducer；
ftVibration frequency (Hz) for the mass-spring system measured after sampling by acceleration transducer；
H is smoke moisture (g/L).
In above-mentioned gravimetric method smoke moisture measuring device, as a preferred implementation manner, further include: controller；Control
Device is connect with acceleration transducer 24, sampler, for the delivering sample man according to acceleration transducer, sampler output
Make instruction whether stopping, and calculates smoke moisture.
Specifically, controller is connect with acceleration transducer 24, receives the oscillation information of acceleration transducer output
Calculate the moisture weight gain of sampling period.
Specifically, controller is connect with sampler, for example, respectively with pressure sensor 12, humidity sensor 14, sampling pump
16, flowmeter 18 connects；Controller can receive the data that pressure sensor 12 and flowmeter 18 transmit and be used to judge sampler
Air-tightness, air-tightness preferably (leak detection passes through), which can start to sample, if flow and pressure all reach setting value carries out test work
Make, air-tightness is bad (leak detection does not pass through) if flow and pressure do not reach setting value, needs adjustment gas circuit；Controller can
It receives the humidity data for the emptying sample gas that humidity sensor 14 transmits and terminates the opportunity of sampling with setting value multilevel iudge, if
The humidity of emptying sample gas then issues stopping sampling instruction to sampling pump 16 beyond setting value and controls sampling by output switching value
The on-off of the power supply of pump 16 records the flow number that flowmeter 18 at this time transmits to realize that sampling ends automatically
According to.
Preferably, controller can be PLC (programmable logic controller (PLC)) or single-chip microcontroller.
In above-mentioned gravimetric method smoke moisture measuring device, as a preferred implementation manner, further include: refrigeration section temperature passes
Sensor；Wherein, the refrigeration section temperature sensor is set in the refrigeration section, and is connect with the controller, for measuring
The actual temperature of the refrigeration section simultaneously will measure result and be sent to the controller；The input terminal of the controller and the refrigeration
The output end of portion's temperature sensor connects, and the output end of the controller is connect with the power supply of the refrigeration section, the controller
The information of the refrigeration section temperature sensor output is received, and will be in the actual temperature for the refrigeration section that received and the controller
Preset refrigeration section temperature comparisons, the controller issue the Working mould that instruction controls the refrigeration section according to comparing result
Formula: when the actual temperature of the refrigeration section be higher than the controller in preset refrigeration section temperature when, the controller to
The power control relay of the refrigeration part of the refrigeration section issues the instruction for starting refrigeration；When the actual temperature of the refrigeration section
Lower than when preset refrigeration section temperature, controller is controlled to the power supply of the heating element of the refrigeration section in the controller
Relay issues the instruction begun to warm up.
As shown in figures 3 to 6, in a preferred embodiment of the present invention, heat exchange cup 412 is the closed cylinder in bottom
Glass container, refrigeration section include cold well ontology 42, refrigeration part, heating element and temperature sensor, and cold well ontology 42 is aluminium block,
Refrigeration part uses semiconductor chilling plate, and heating element uses heating rod；Cold well ontology 42 is equipped with to be prolonged from its upper surface to core
Heat exchange cup receiving portion 421, heating rod hole location 422 and the temperature sensor hole location 423 stretched, heat exchange cup 412 are inserted into heat exchange
Cup receiving portion 421, heating rod are installed in heating rod hole location 422, and temperature sensor is installed in temperature sensor hole location 423；
The huyashi-chuuka (cold chinese-style noodles) side of semiconductor chilling plate is connect with the one side of cold well ontology 42, and the hot surface side of semiconductor chilling plate is equipped with cooling fin 43
With fan 44, to ensure that the hot face of semiconductor chilling plate constantly cools down, and then guarantee huyashi-chuuka (cold chinese-style noodles) refrigeration.
In above-mentioned gravimetric method smoke moisture measuring device, as a preferred implementation manner, further include: complete machine heating dress
It sets, is set on the complete machine cabinet of the gravimetric method smoke moisture measuring device, for ensuring the weight at low ambient temperatures
Inside method smoke moisture measuring device within the scope of normal working temperature；
Preferably, the complete machine heating device include: heating component, the current supply circuit being connect with the heating component and with
The temperature detect switch (TDS) of the current supply circuit connection, the heating component to the gravimetric method smoke moisture measuring device complete machine for adding
Heat, the current supply circuit are used to power to the heating component, the temperature detect switch (TDS) for control heating component heating with
It is no；
It is highly preferred that the complete machine heating device further include: it is wet to be set to the gravimetric method flue gas for environment temperature sensor
It spends on the complete machine cabinet of measuring device, and is connect with the controller, for measuring environment temperature and sending measurement result to
The controller；The controller is also connect with the temperature detect switch (TDS)；The controller receives the environment temperature sensor and passes
The ambient temperature information sent, and work as actual measurement it is determined whether to enable the temperature detect switch (TDS) for controlling the heating component accordingly
Environment temperature lower than preset ambient temperature value in controller, then the controller issues and opens the temperature detect switch (TDS)
Instruction is with heating pretreatment device；When the environment temperature of actual measurement reaches preset ambient temperature value, the control
Device issues the instruction of the closing temperature detect switch (TDS) to stop continuing to heat and keep the instruction of the temperature.
Embodiment
The gravimetric method smoke moisture measuring device of the present embodiment specifically includes that sampler, spring, oscillator platform and acceleration
Sensor；Wherein, sampler include sequentially connected sampling feeler lever 1, it is sample gas transfer line 2, condenser 4, drier 6, fine
Filter 10, pressure sensor 12, humidity sensor 14, sampling pump 16, flowmeter 18, emptying extension tube 21；One end of spring
It is installed on complete machine casing, oscillator platform is fixedly installed on the other end；In addition to sampling feeler lever 1 and sample gas pass in sampler
The outer other parts of defeated pipeline 2 all integrated installations are on oscillator platform；Acceleration transducer is set on oscillator platform.
Specifically, in sampler, the entrance of sample gas transfer line 2 is connect with sampling feeler lever 1；Condenser 4 includes heat exchange
The entrance of pipe and heat exchange cup, heat-exchange tube is connect by condenser heat exchange tubes connector 3 with the outlet of sample gas transfer line 2；
Drier 6 is the U-shaped drying tube of the built-in desiccant including discoloration silica gel, and entrance passes through the first connecting tube 5 and condenser 4
Heat-exchange tube outlet connection；For convenience by the associated components integrated installation of sampler on oscillator platform, it is convenient for oscillator platform
Encapsulation, by fine filter 10, pressure sensor 12, humidity sensor 14, sampling pump 16,18 integrated installation of flowmeter in a machine
In case, the both ends of the cabinet are respectively equipped with the first BULKHEAD UNION 8 and the second BULKHEAD UNION 20, and the entrance of fine filter 10 passes through
Third connecting tube 9 is connect with the first BULKHEAD UNION 8, and outlet is connect by the 4th connecting tube 11 with pressure sensor 12, and pressure passes
Sensor 12 is connect by the 5th connecting tube 13 with temperature sensor 14, and temperature sensor 14 passes through the 6th connecting tube 15 and sampling pump
The outlet of 16 connections, sampling pump 16 is connect by the 7th connecting tube 17 with flowmeter 18, and flowmeter 18 passes through the 8th connecting tube 19
It is connect with the second BULKHEAD UNION 20；The first BULKHEAD UNION 8 on cabinet is connect by the second connecting tube 7 with the outlet of drier 6,
The second BULKHEAD UNION 20 on cabinet is connect with emptying extension tube 21.
Wherein, sampling feeler lever 1 is hot type sampling feeler lever, and sample gas transfer line 2 is hot type transfer line；Condenser 4
For constant-temperature condensation device (as shown in figures 3 to 6), i.e. condenser 4 includes the heat-exchange tube 41 passed through for sample gas and refrigeration section, and heat is handed over
Pipe 41 is changed to include heat-exchange tube entrance 411, heat-exchange tube outlet 413 and be set to heat-exchange tube entrance 411 and heat-exchange tube
Heat exchange cup 412 between outlet 413, refrigeration section are arranged around heat exchange cup 412, and heat exchange cup 412 is the closed circle in bottom
Cylindrical glass container, for accommodating the condensed water retained from sample gas；Refrigeration section includes cold well ontology 42, refrigeration part, heating
Component, cold well ontology 42 are aluminium block, and refrigeration part uses semiconductor chilling plate, and heating element uses heating rod；Cold well ontology 42
Equipped with heat exchange cup receiving portion 421, the heating rod hole location 422 extended from its upper surface to core, heat exchange cup 412 is inserted into hot friendship
Glass receiving portion 421 is changed, heating rod is installed in heating rod hole location 422；The huyashi-chuuka (cold chinese-style noodles) side of semiconductor chilling plate and cold well ontology 42
One side connection, hot surface side are equipped with cooling fin 43 and fan 44.Refrigeration section further include: temperature sensor and cold well control system device.It is cold
Well ontology 42 is equipped with the temperature sensor hole location 423 extended from its upper surface to core, and temperature sensor is installed on temperature sensing
In device hole location 423.Cold well control system device is connect with temperature sensor, is also connect with refrigeration part and heating element, for according to temperature
Spend the temperature controlled refrigerating component of sensor measurement or starting or stoping for heating element.It should be noted that cold well control system device
The function of realization can be realized by following controllers.
Above-mentioned gravimetric method smoke moisture measuring device further include:
Controller, with acceleration transducer 24, sampler (humidity sensor 14, pressure sensing specially in sampler
Device 12, flowmeter 18, sampling pump 16) connection, for the delivering sample man according to acceleration transducer 24, sampler output
Make instruction whether stopping, reading accumulative sampling volume, vent gas humidity, and comprehensive reading numerical values calculate smoke moisture；
Complete machine heating device is set on the complete machine cabinet of the measuring device, described at low ambient temperatures for ensuring
Inside measuring device within the scope of normal working temperature.
The application method of above-mentioned gravimetric method smoke moisture measuring device is as follows:
(1) it hunts leak mode: by sampling feeler lever 1, sample gas transfer line 2, condenser 4, drier 6, pressure sensor 12, wet
Degree sensor 14, sampling pump 16 are reliably connected by connecting pipeline and gas path joint, the front end for blocking sampling feeler lever 1 and starting is adopted
Sample pump 16 extracts the sample gas of front end, and pressure sensor 12 can show negative pressure at this time, and the flow of flowmeter 18 also can be with extraction
Time and become smaller, when flow and pressure reach setting value, so that it may complete leak detection operation, if setting value cannot be reached, need
It adjusts gas circuit and re-starts leak detection, until leak detection passes through.
(2) operating mode: after starting sampling pump 16 works, pumping power can be generated, sample gas is by sampling feeler lever 1 and therewith
The sample gas transfer line 2 being connected is sucked into the heat-exchange tube inside condenser 4, and most of vapor, which will be condensed to collect, to exist
In heat exchange cup；After condensation, sample gas drying device 6, remaining vapor can be inhaled by the desiccant inside drier 6
It receives；Then it after fine filter 10 filters out fine particle, is measured humidity by humidity sensor 14 and is recorded by flowmeter 18 and flowed
Amount, last sample gas are discharged by emptying extension tube 21；Stop sampling after the humidity for emptying sample gas is more than setting value, records flow
The vibration frequency of mass-spring system before and after counting 18 cumulative volume mark condition lower volumes and the sampling that measures in conjunction with acceleration transducer
Rate, then according to above formula (3) and formula (4) obtain smoke moisture.
The present embodiment has the following advantages:
1) vaporous water collected in flue gas is condensed using deep cooling heated constant temperature mode, utilizes semiconductor or other refrigeration parts
(such as Cempression engine refrigerating apparatus) gives aluminium block deep refrigerating, then is controlled temperature to set temperature by heating method；
2) increase sampling pump before pressure sensor, cooperateed with flowmeter can the air-tightness to equipment carry out sampling preceding inspection
It looks into；
3) high-precision humidity sensor is used, quantitative measurment empties sample air humidity degree, and increases and judge automatically, when humidity is super
Stop sampling after crossing setting value, avoids draining excessive moisture, lead to measurement error；
4) moisture in sample gas is sufficiently collected using condenser and drier twin-stage water removal mode；Become using band indicative function
Color silica gel and desiccant carry out depth dehumidifying, so that gas moisture is removed to specified moisture value and has qualitative judgement；
5) fine filter is placed on sampling pump front end, reaches the sampling being also effectively protected while filtering out particulate matter
The components such as pump, flowmeter, pressure sensor, humidity sensor；
6) mass change amount is measured using oscillator check weighing mode combination acceleration transducer, simplifies measurement condenser and drying
Device before testing after weight measurement work, can not use balance carry out on-the-spot test, avoid wet caused by measurement error
Spend measured deviation；
7) increase the heating temperature control module of complete machine, so that being may insure inside equipment at low ambient temperatures in normal work
In temperature range.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of sampler for the measurement of gravimetric method smoke moisture, which is characterized in that the sampler includes sequentially connected
Sampling feeler lever, sample gas transfer line, condenser, drier, sampling pump, flowmeter, emptying extension tube, wherein the sampling pump
Be evacuated power for providing, sample gas acquires by the sampling feeler lever, through the sample gas transfer line be transmitted to the condenser into
Then row condensation dehydration, then dehumidify through the drier by cmf record flow and adds up total sampling volume, the last sample
Gas is discharged by the emptying extension tube；
Wherein, the moisture content removed through the condenser remaines in the condenser, and the moisture content to dehumidify through the drier retains
In in the drier.
2. sampler as described in claim 1, which is characterized in that the sampling feeler lever is hot type sampling feeler lever, the sample
Gas transfer line is hot type transfer line；The drier is drying tube, and inside is placed with the desiccant with indicative function.
3. sampler as claimed in claim 1 or 2, which is characterized in that the sampler further include: humidity sensor, setting
After the drier, for measuring the humidity of vent gas.
4. sampler as claimed in any one of claims 1-3, which is characterized in that the sampler further include: pressure sensing
Device, after being set to the drier, before the sampling pump, for measuring the sample atmospheric pressure in pipeline.
5. such as sampler of any of claims 1-4, which is characterized in that the sampler further include: fine filtering
Device, entrance are connect with the outlet of the drier, for filtering out the fine particle in sample gas, protect subsequent component.
6. sampler according to any one of claims 1 to 5, which is characterized in that the condenser includes passing through for sample gas
Heat-exchange tube and refrigeration section, the heat-exchange tube include heat-exchange tube entrance, heat-exchange tube outlet and be set to it is described heat hand over
Change the heat exchange cup between tube inlet and heat-exchange tube outlet；The refrigeration section is arranged around the heat exchange cup, is used for
Refrigeration；The closed container in heat exchange bottom of a cup portion, for accommodating the condensed water retained from sample gas；
Preferably, the refrigeration section is one and is integrated with the cold well of refrigeration part and heating element, and the cold well has heat exchange
Cup receiving portion is used to accommodate the heat exchange cup of the condenser；The cooling module is semiconductor chilling plate or compression mechanism cold charge
It sets, the heating elements are electric heating heater, heating rod or heating film.
7. a kind of gravimetric method smoke moisture measuring device, which is characterized in that the measuring device includes: spring, oscillator platform, adds
Velocity sensor and such as sampler of any of claims 1-6；Wherein,
One end of spring is installed on casing, and oscillator platform is fixedly installed on the other end；
In the sampler other than the sampling feeler lever and the sample gas transfer line other parts all integrated installations in described
On oscillator platform；
The acceleration transducer is arranged on be set forth in oscillator platform, for measuring vibration frequency.
8. gravimetric method smoke moisture measuring device as claimed in claim 7, which is characterized in that the measuring device further include:
Controller；
The controller is connect with the acceleration transducer, the sampler, for according to the acceleration transducer, described
Instruction whether the delivering sampling operation of sampler output stops, reading numerical values and COMPREHENSIVE CALCULATING smoke moisture；
Preferably, controller is PLC or single-chip microcontroller.
9. gravimetric method smoke moisture measuring device as claimed in claim 8, which is characterized in that the measuring device further include:
Refrigeration section temperature sensor；Wherein, the refrigeration section temperature sensor is set in the refrigeration section, and is connected with the controller
It connects, is sent to the controller for measuring the actual temperature of the refrigeration section and result will be measured；The input of the controller
End is connect with the output end of the refrigeration section temperature sensor, and the power supply of the output end of the controller and the refrigeration section connects
It connects, the controller receives the information of refrigeration section temperature sensor output, and by the actual temperature of the refrigeration section received
With refrigeration section temperature comparisons preset in the controller, the controller is issued according to comparing result and is instructed described in control
The operating mode of refrigeration section:
When the actual temperature of the refrigeration section be higher than the controller in preset refrigeration section temperature when, the controller to
The power control relay of the refrigeration part of the refrigeration section issues the instruction for starting refrigeration；When the actual temperature of the refrigeration section
Lower than when preset refrigeration section temperature, controller is controlled to the power supply of the heating element of the refrigeration section in the controller
Relay issues the instruction begun to warm up.
10. gravimetric method smoke moisture measuring device as claimed in claim 7, which is characterized in that the measuring device further include:
Complete machine heating device is set on the casing of the gravimetric method smoke moisture measuring device, for ensuring the gravimetric method
Inside smoke moisture measuring device within the scope of normal working temperature；
Preferably, the complete machine heating device include: heating component, the current supply circuit being connect with the heating component and with it is described
The temperature detect switch (TDS) of current supply circuit connection, the heating component are used to heat to the gravimetric method smoke moisture measuring device complete machine,
The current supply circuit is used to power to the heating component, whether the temperature detect switch (TDS) is for controlling heating component heating；
It is highly preferred that the complete machine heating device further include: environment temperature sensor is set to the gravimetric method smoke moisture and surveys
It on the casing for measuring device, and is connect with the controller, for measuring environment temperature and sending measurement result to described
Controller；The controller is also connect with the temperature detect switch (TDS)；The controller receives the environment temperature sensor transmission
Ambient temperature information, and it is determined whether to enable the temperature detect switch (TDS)s for controlling the heating component accordingly, when the ring of actual measurement
Border temperature is lower than preset ambient temperature value in controller, and then the controller issues the instruction for opening the temperature detect switch (TDS)
With heating pretreatment device；When the environment temperature of actual measurement reaches preset ambient temperature value, the controller hair
Close the instruction of the temperature detect switch (TDS) out to stop continuing to heat and keep the instruction of the temperature.
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