CN109946125A - Measurement with wet gas temperature and humidity sampling apparatus - Google Patents
Measurement with wet gas temperature and humidity sampling apparatus Download PDFInfo
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- CN109946125A CN109946125A CN201910347926.0A CN201910347926A CN109946125A CN 109946125 A CN109946125 A CN 109946125A CN 201910347926 A CN201910347926 A CN 201910347926A CN 109946125 A CN109946125 A CN 109946125A
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- temperature
- equality
- pipe
- sampling
- wet
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- 238000005070 sampling Methods 0.000 title claims abstract description 85
- 238000005259 measurement Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000007789 gas Substances 0.000 claims abstract description 28
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000003546 flue gas Substances 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000003517 fume Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of measurement with wet gas temperature and humidity sampling apparatuses, comprising: sampling pipe, equality of temperature pipe, dry bulb thermometer, wet-bulb thermometer, sampling tube loop, equality of temperature tube loop；The flue gas of sampled point enters from the sampling pipe, and the dry bulb thermometer and wet-bulb thermometer are set in the sampling pipe, and send the sampled point back to from the sampling tube loop after the dry bulb thermometer and wet-bulb thermometer；The equality of temperature pipe is coated on outside the sampling pipe and connect with the equality of temperature tube loop, the flue gas of the sampled point enters the equality of temperature pipe simultaneously, and the sampled point is returned to from the equality of temperature tube loop, the equality of temperature pipe is connected with the second extract system, and the water capacity (%) of flue gas can inquire hygrogram or be obtained with theoretical formula method.Present invention can assure that the sampling pipe is uniformly heated stabilization under low-power shape, the temperature in the sampling pipe is allowed to keep stablizing.
Description
Technical field
It is high, easy to operate that the present invention relates to gas temperature and humidity sampling apparatus technical fields more particularly to a kind of accuracy
Measurement with wet gas temperature and humidity sampling apparatus.
Background technique
Traditional measurement with wet sampling pipe obtains accurate measurement result and needs certain skills there are clearly disadvantageous, and needs
Final result can just be obtained by being manually computed；It is required that high-power heating air inlet pipe, pumping power source will overcome biggish dirt
Dye source pressure load, and gaseous sample is possible to be humidified by wet gauze is wanted when the relative humidity of tested gas is lower than 15%RH
Want to make wet-bulb temperature obtain it is enough reduce highly difficult, hardly result in reliable result.Due to dust, oily matter or other dirts
Dye object can pollute gauze, or because of water flowing deficiency, all wet-bulb temperature can be caused higher, the relative humidity result eventually led to is inclined
It is high.
In addition there are also thermometric error, wind speed, radiation errors etc. for the factor having an impact to result.
It improves: 1, gas sampler, which increases circuit-, makes measured tube internal load substantially constant in sampling pipe, reduces gas source institute
The power of load need to be overcome.2, gas sampler increase equality of temperature pipe housing-measured tube gas flows in equality of temperature pipe makes sampling pipe
Temperature is substantially consistent with gas temperature in managing, and reduces the power of sampling pipe required heating in heating tube.3, equality of temperature pipe heating and
It is more evenly stable that circuit constant-voltage equipment-may insure that sampling pipe is heated in a low-power state.4, wet bulb water temperature control system-control
Water temperature processed reduces temperature error when constantly supplementing water to wet-bulb thermometer so that water temperature closer tested gas temperature.5, water
Matter and water state sensor-monitor water quality and quantity in time, reduce the pollution of dust, oily matter or other pollutants to gauze
And prevent water shortage.
Therefore, need that a kind of accuracy is high, measurement with wet gas temperature and humidity sampling apparatus easy to operate.
Summary of the invention
The object of the present invention is to provide a kind of accuracy height, measurement with wet gas temperature and humidity sampling apparatus easy to operate.
To achieve the goals above, technical solution provided by the invention are as follows: 1, a kind of measurement with wet gas temperature and humidity are provided
Sampling apparatus characterized by comprising sampling pipe, equality of temperature pipe, dry bulb thermometer, wet-bulb thermometer, sampling tube loop, equality of temperature
Tube loop；
The dry bulb thermometer and wet-bulb thermometer are set in the sampling pipe, the flue gas of sampled point from the sampling pipe into
Enter, and the sampled point, the sampling are sent back to by the sampling tube loop after the dry bulb thermometer and wet-bulb thermometer
Pipe is connected with the first extract system, and first extract system includes first control device, the first aspiration pump, first pumping
Pump is connect with the sampling pipe, and the first control device controls first aspiration pump and is evacuated to the sampling pipe；
The equality of temperature pipe is connect with the equality of temperature tube loop, and the equality of temperature pipe and equality of temperature tube loop are enclosed in described adopt respectively
Except sample pipe and sampling tube loop, the flue gas of the sampled point enters the equality of temperature pipe simultaneously, and returns from the equality of temperature tube loop
To the sampled point, the equality of temperature pipe is connected with the second extract system, and second extract system includes second control device,
Two aspiration pumps, second aspiration pump are connect with the equality of temperature pipe, and the second control device controls second aspiration pump pair
The equality of temperature pipe is evacuated；
The water capacity (%) of flue gas can inquire hygrogram or be obtained with theoretical formula method:
Wherein, pbvFor saturation vapor pressure, tcFor dry gas temperature, tdFor wet-bulb temperature, BAFor atmospheric pressure, PBIt is wet
Ball surface negative pressure, Ps are flue gas static pressure.
The equality of temperature inside pipe wall is additionally provided with for making flue-gas temperature in the sampling pipe keep connecing with the sampled point temperature
Close heating device.
The wet-bulb thermometer connects a water box by gauze water jacket, and the water box are equipped with water temperature regulater, water quality water
Quantity sensor, and a set of control system is formed, thermometer is additionally provided in the water box, the control system is for reducing because described in
The error between temperature and actual temperature that lapse of temperature when gauze water jacket keeps the skin wet causes the thermometer to detect.
It further include master control system, the master control system is connected with the heating device, and for controlling the heating device.
It further include electronic thermometer, the electronic thermometer is set in the sampling pipe, and for measuring the sampling pipe
The temperature of interior flue gas.
It further include KD formula humidity conditioner, the KD formula humidity conditioner is for directly reading humidity data or access
Automatic fume tester reads humidity data.
Compared with prior art, it in measurement with wet gas temperature sampling apparatus of the present invention, is adopted described in the sampling pipe connection
Sample tube loop, so that being kept constant as much as possible in the sampling pipe internal loading, moreover it is possible to which reduction is applied in the sampling pipe and uses
In the power for extracting the flue gas in the sampled point；The equality of temperature pipe and equality of temperature tube loop are set, it can be ensured that the sampling pipe
Under low-power shape, it is uniformly heated stabilization, the temperature in the sampling pipe is allowed to keep stablizing.
Through the following description and in conjunction with the attached drawings, the present invention will become more fully apparent, these attached drawings are used to explain the present invention
Embodiment.
Detailed description of the invention
Fig. 1 show the schematic diagram of one embodiment of wet and dry bulb gas temperature sampling apparatus of the present invention.
Specific embodiment
The embodiment of the present invention described referring now to the drawings, similar element numbers represent similar element in attached drawing.Such as
It is upper described, as shown in Figure 1, measurement with wet gas temperature and humidity sampling apparatus 100 provided in an embodiment of the present invention, comprising: sampling pipe
1, equality of temperature pipe 2, dry bulb thermometer 3, wet-bulb thermometer 4, sampling tube loop 5, equality of temperature tube loop 6；
The dry bulb thermometer 3 and wet-bulb thermometer 4 are set in the sampling pipe 1, and on chimney, the flue gas of sampled point is from institute
The entrance of sampling pipe 1 is stated, and described adopt is sent back to by the sampling tube loop 5 after the dry bulb thermometer 3 and wet-bulb thermometer 4
Sampling point；The sampling pipe 1 is connected with the first extract system, and first extract system includes that first control device 11, first is taken out
Air pump 12, first aspiration pump 12 are connect with the sampling pipe 1, and the first control device 11 controls first aspiration pump
12 pairs of sampling pipes 1 are evacuated, so that the flue gas of the sampled point enters from the sampling pipe 1, finally from the sampling
Tube loop 6 sends back to the sampled point.
The equality of temperature pipe 2 is connect with the equality of temperature tube loop 6, and the equality of temperature pipe 2 and equality of temperature tube loop 6 are enclosed in institute respectively
State except sampling pipe 1 and sampling tube loop 5, the equality of temperature pipe 2 and the inner wall of the equality of temperature tube loop 6 and the sampling pipe 1 and
It samples and forms circular passage between the outer wall of tube loop 5, the flue gas of the sampled point enters the equality of temperature pipe 2 simultaneously, described to adopt
The flue gas of sampling point is substantially to enter the circular passage, and return to the sampled point from the equality of temperature tube loop 6；The equality of temperature
Pipe 2 is connected with the second extract system, and second extract system includes second control device 21, the second aspiration pump 22, and described
Two aspiration pumps 22 are connect with the equality of temperature pipe 2, and the second control device 21 controls second aspiration pump 22 to the equality of temperature
Pipe 2 is evacuated, so that the flue gas of the sampled point enters from the equality of temperature pipe 2, is finally sent back to from the equality of temperature tube loop 6
The sampled point.
The water capacity (%) of flue gas can inquire hygrogram or be obtained with theoretical formula method:
Wherein, pbvFor saturation vapor pressure, tcFor dry gas temperature, tdFor wet-bulb temperature, BAFor atmospheric pressure, PBIt is wet
Ball surface negative pressure, Ps are flue gas static pressure.
In one embodiment, 2 inner wall of equality of temperature pipe is additionally provided with for making flue-gas temperature holding and institute in the sampling pipe 1
The close heating device 7 of sampled point temperature is stated, since the equality of temperature pipe 2 is coated on outside the sampling pipe 1, in the equality of temperature pipe 2
The interior setting heating device 7, can make the flue gas in the sampling pipe 1 keep the temperature one with the sampled point as much as possible
It causes.
In one embodiment, the wet-bulb thermometer 4 connects a water box 8 by gauze water jacket, and the water box 8 are equipped with water
Temperature controller 9, water quality and quantity sensor 10, and a set of control system is formed, thermometer 13 is additionally provided in the water box 8, it is described
The temperature that the thermometer detects caused by control system is used to reduce because of the lapse of temperature when gauze water jacket keeps the skin wet
Error between actual temperature.
It further include master control system in one embodiment, the master control system is connected with the heating device 7, and for controlling
Make the heating device 7.
It further include electronic thermometer 13 in one embodiment, the electronic thermometer 13 is set in the sampling pipe 1, and
For measuring the temperature of flue gas in the sampling pipe 1.
It further include KD formula humidity conditioner (not showing on figure) in one embodiment, the KD formula humidity conditioner is used
Humidity data is read in directly reading humidity data or accessing automatic fume tester.
When equipment samples access power supply, the first extract system of one-key start, the second extract system and water temperature regulater；It should
Equality of temperature pipe is coated at sampling pipe, and equality of temperature pipe is wound with heater strip, so that gas temperature is kept and sampled point gas in sampling pipe
Temperature close；Equality of temperature tube loop takes back sampled point as sampling tube loop simultaneously, so that sampling pipe and chimney are born
Substantially constant is carried, first aspiration pump and the second aspiration pump can be made to use low-power equipment aspiration pump in this way, it can be effective
Ground reduces energy consumption, extends power supply cruising ability.Sampling pipe rear end is equipped with dry bulb thermometer and wet-bulb thermometer, and wet-bulb thermometer connects
A water box are connect, water box are equipped with water temperature regulater, water temperature sensor and water quality and quantity sensor, and form a set of control system,
The system with reduce because gauze water jacket keeps the skin wet when lapse of temperature, water pollution, water shortage etc. caused by thermometer and reality
Error between the temperature of border.The rear end of dry bulb thermometer and wet-bulb thermometer is additionally provided with electronics Hygrothermograph to ensure equipment can
Measurement range carries out, while the equipment can assemble KD formula temperature control equipment directly to read humidity data or the automatic flue dust of access
Smoke detecting instrument reads humidity data.
The above disclosure is only a preferred embodiment of the invention, cannot limit the right of the present invention with this certainly
Range, therefore according to equivalent variations made by scope of the present invention patent, it is still within the scope of the present invention.
Claims (6)
1. a kind of measurement with wet gas temperature and humidity sampling apparatus characterized by comprising sampling pipe, equality of temperature pipe, dry-bulb temperature
Meter, wet-bulb thermometer, sampling tube loop, equality of temperature tube loop；
The dry bulb thermometer and wet-bulb thermometer are set in the sampling pipe, and the flue gas of sampled point enters from the sampling pipe,
And the sampled point is sent back to by the sampling tube loop after the dry bulb thermometer and wet-bulb thermometer, the sampling pipe connects
Be connected to the first extract system, first extract system includes first control device, the first aspiration pump, first aspiration pump with
The sampling pipe connection, the first control device control first aspiration pump and are evacuated to the sampling pipe；
The equality of temperature pipe is connect with the equality of temperature tube loop, and the equality of temperature pipe and equality of temperature tube loop are enclosed in the sampling pipe respectively
And except sampling tube loop, the flue gas of the sampled point enters the equality of temperature pipe simultaneously, and returns to institute from the equality of temperature tube loop
Sampled point is stated, the equality of temperature pipe is connected with the second extract system, and second extract system includes second control device, the second pumping
Air pump, second aspiration pump are connect with the equality of temperature pipe, and the second control device controls second aspiration pump to described
Equality of temperature pipe is evacuated；
The water capacity (%) of flue gas can inquire hygrogram or be obtained with theoretical formula method:
Wherein, pbvFor saturation vapor pressure, tcFor dry gas temperature, tdFor wet-bulb temperature, BAFor atmospheric pressure, PBFor wet bulb table
Face negative pressure, Ps are flue gas static pressure.
2. measurement with wet gas temperature and humidity sampling apparatus as described in claim 1, which is characterized in that the equality of temperature inside pipe wall is also
Equipped with for keeping flue-gas temperature in the sampling pipe and the close heating device of the sampled point temperature.
3. measurement with wet gas temperature and humidity sampling apparatus as claimed in claim 2, which is characterized in that the wet-bulb thermometer is logical
It crosses gauze water jacket and connects a water box, the water box are equipped with water temperature regulater, water quality and quantity sensor, and form a set of control system
It unites, thermometer is additionally provided in the water box, the control system is for reducing because of the temperature when gauze water jacket keeps the skin wet
Error between the temperature and actual temperature for causing the thermometer to detect of successively decreasing.
4. measurement with wet gas temperature and humidity sampling apparatus as claimed in claim 3, which is characterized in that it further include master control system,
The master control system is connected with the heating device, and for controlling the heating device.
5. such as the described in any item measurement with wet gas temperature and humidity sampling apparatuses of Claims 1 to 4, which is characterized in that further include
Electronic thermometer, the electronic thermometer are set in the sampling pipe, and the temperature for measuring the sampling inner tube smoke.
6. measurement with wet gas temperature and humidity sampling apparatus as described in claim 1, which is characterized in that further include KD formula humidity control
Device processed, the KD formula humidity conditioner are wet for directly reading humidity data or the automatic fume tester reading of access
Degree evidence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347926.0A CN109946125B (en) | 2019-04-28 | 2019-04-28 | Dry-wet ball method gas temperature and humidity sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347926.0A CN109946125B (en) | 2019-04-28 | 2019-04-28 | Dry-wet ball method gas temperature and humidity sampling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109946125A true CN109946125A (en) | 2019-06-28 |
| CN109946125B CN109946125B (en) | 2024-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910347926.0A Active CN109946125B (en) | 2019-04-28 | 2019-04-28 | Dry-wet ball method gas temperature and humidity sampling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607295A (en) * | 2021-06-09 | 2021-11-05 | 合肥通用机械研究院有限公司 | Low-temperature air temperature and humidity measurement and calculation method |
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2019
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| Publication number | Publication date |
|---|---|
| CN109946125B (en) | 2024-03-26 |
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