CN207066815U - A kind of portable capacitance-resistance method instrument for testing moisture content in smoke - Google Patents
A kind of portable capacitance-resistance method instrument for testing moisture content in smoke Download PDFInfo
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- CN207066815U CN207066815U CN201721018602.5U CN201721018602U CN207066815U CN 207066815 U CN207066815 U CN 207066815U CN 201721018602 U CN201721018602 U CN 201721018602U CN 207066815 U CN207066815 U CN 207066815U
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Abstract
The utility model discloses a kind of portable capacitance-resistance method instrument for testing moisture content in smoke, the front end of instrument sets probe tube, and the front end of probe tube is provided with filter, heater block is provided with the lateral wall of probe tube, and the rear end of probe tube is provided with measurement chamber；Resistance-capacitance type Temperature Humidity Sensor is provided with measurement chamber, measurement chamber is connected by condensing unit and filtration drying device with pneumatic flow measurement apparatus, and pneumatic flow measurement apparatus is connected with pumping power set, and pumping power set are connected by tracheae with exhaust outlet.Accuracy of measurement is higher, and reaction faster, extends the service life of resistive-capacitive sensor, can effectively overcome the high temperature hostile flue environment for being mixed with operative liquid water, filter protection rear end resistive-capacitive sensor probe, improve the accuracy that water capacity measures.
Description
Technical field
The utility model belongs to flue gas technical field of measuring equipment, and in particular to a kind of portable capacitance-resistance method humidity of flue gas
Measuring instrument.
Background technology
It is mainly measurement with wet and a part of capacitance-resistance that existing portable instrument measurement Gu, which Dings the methods of polluted dye source water capacities,
Method.And measurement with wet has the shortcomings of reaction is slow, and the hot environment degree of accuracy is low, and measurement range is narrow.And capacitance-resistance method surveys water capacity tool
There is the advantages that reaction is fast, and the degree of accuracy is high, and measurement range is wide.But capacitance-resistance method humidity measuring instrument on the market is all to hinder now
Hold sensor probe and be placed directly on measurement in flue.Due to humidity in flue, dust, corrosive gas etc. influence, can dropped significantly
Low-resistance holds the accuracy of method humidity measuring instrument, reduces the service life of resistive-capacitive sensor probe.And directly added at probe
Although filter and heater can overcome the influence of dust in flue, humidity reluctantly, accuracy of measurement can substantially reduce.And
The severe flue environment for being mixed with operative liquid water can not effectively be overcome.
Existing portable capacitance-resistance method measurer for smoke humidity measurement is that Temperature Humidity Sensor is placed on into probe tube front end, directly
Connect with tested gas contact measurement, without gas extraction.High humidity in flue, high dirt can not be overcome to the shadow of Temperature Humidity Sensor
Ring, reaction speed is slow.In addition, the instrument of existing online CEMS measurement water capacities：Probe tube, measurement chamber and pumping power dress
Put it is completely separable, it is bulky, it is impossible to it is portable, belong to online quasi-instrument.Therefore, a kind of portable capacitance-resistance method flue gas how is researched and developed
Moisture content meter, overcome above-mentioned drawback, have important practical significance.
Utility model content
Being placed directly on for the probe of resistive-capacitive sensor present in prior art in flue causes to survey under hot and humid environment
The accuracy problems of amount, the purpose of this utility model are to provide a kind of extraction-type, portability, capacitance-resistance method, whole heat tracing, one
The instrument for testing moisture content in smoke of change, the degree of accuracy of measurement is improved, overcome the ring of high humidity in flue, high temperature, high dust, highly corrosive
Border, extends the service life of resistive-capacitive sensor probe, and complete machine is portable.
The technical scheme that the utility model is taken is：
A kind of portable capacitance-resistance method instrument for testing moisture content in smoke, the front end of instrument set probe tube, and the front end of probe tube is set
Filter is equipped with, heater block is provided with the lateral wall of probe tube, the rear end of probe tube is provided with measurement chamber；Measure chamber
Resistance-capacitance type Temperature Humidity Sensor is inside provided with, measurement chamber is filled by condensing unit and filtration drying device with pneumatic flow measurement
Connection is put, pneumatic flow measurement apparatus is connected with pumping power set, and pumping power set are connected by tracheae with exhaust outlet.
Further, the pneumatic flow measurement apparatus includes metering hole, pressure-tapping nozzle and meter temperature meter pressure sensor, gas circuit master
In vivo along restricted orifice is set at the axis of gas circuit main body, the both sides symmetry arrangement of metering hole is provided with pressure
Mouth, count pressure-tapping nozzle of the two air pressure input interfaces of temperature meter pressure sensor respectively with metering hole both sides and be connected.
Further, the condensing unit is arranged to trap impact type condensing unit, including end is provided with into outlet nozzle
Transparent condensing bulb, it is connected with front and rear cavity by entering outlet nozzle inside transparent condensing bulb, is led at the port of transparent condensing bulb respectively
Cross sealing ring and flange seal.
Further, the heater block is arranged to heating tape or heating rod, and helically formula Stagger-wrap is arranged for heating tape
It is arranged on the outer wall of pumping inner tube.
Further, the filtration drying device is arranged to two layers of filter core, and it is quiet that first layer filter core is arranged to groined type high pressure
Electro Sorb net；The cellular porous filter medium of sintering metal is filled with second layer filter core.
Further, the instrument tip bottom is provided with handle and communication interface, one end connection gun body of communication interface
Interior circuit board, the other end connection data transmission device of communication interface.
The beneficial effects of the utility model are：
Sampling pump extracts the flue gas in flue, successively by filtration, the probe tube of whole heat tracing, after being then drawn into
In measurement chamber of the end with resistive-capacitive sensor probe, so as to measure smoke moisture.
Accuracy of measurement under hot and humid environment is higher, and reaction faster, extends the service life of resistive-capacitive sensor, can had
Effect overcomes the flue environment for the high temperature hostile for being mixed with operative liquid water.
Front end filtration can effectively filter the dust in flue, protection rear end resistive-capacitive sensor probe, improve containing wet
The accuracy of measurement.Condensing unit and filtration drying device can effectively remove the moisture in gas circuit, protect the pumping of rear end to move
Power apparatus, extend instrument service life.
Whole heat tracing：Condensate moisture in flue gas is effectively prevented, improves the accuracy of water capacity measurement, protection rear end capacitance-resistance passes
Sensor is popped one's head in.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Fig. 2 is the structural representation of condensing unit in the utility model.
Fig. 3 is the structural representation of pneumatic flow measurement apparatus in the utility model.
Wherein, 1, filter；2nd, probe tube；3rd, heater block；4th, resistance-capacitance type Temperature Humidity Sensor；5th, circuit board；6th, it is cold
Solidifying device；7th, filtration drying device；8th, pneumatic flow measurement apparatus；9th, power set are evacuated；10th, exhaust outlet；11st, communication connects
Mouthful；12nd, chamber is measured；13rd, protection sleeve pipe；14th, outlet nozzle is entered；15th, flange；16th, sealing ring；17th, transparent condensing bulb；18th, count
Temperature meter pressure sensor；19th, pressure-tapping nozzle；20th, gas circuit main body；21st, metering hole.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, a kind of portable capacitance-resistance method instrument for testing moisture content in smoke, the front end of instrument, which is set, to be taken
Sample pipe 2, the front end of probe tube 2 is provided with filter 1, heater block 3 is provided with the lateral wall of probe tube 2, along probe tube 2
The external protection sleeve pipe 13 in axis, the rear end of probe tube 2 is provided with measurement chamber 12；Resistance-capacitance type is provided with measurement chamber 12
Temperature Humidity Sensor 4, measurement chamber 12 are connected by condensing unit 6 and filtration drying device 7 with pneumatic flow measurement apparatus 8,
Pneumatic flow measurement apparatus 8 is connected with pumping power set 9, and pumping power set 9 are connected by tracheae with exhaust outlet 10.
Heater block 3 is arranged to heating tape or heating rod, and helically the arrangement of formula Stagger-wrap is arranged on probe tube 2 for heating tape
Outer wall on.The canoe of heating tape, be advantageous to increase it and be evacuated the contact area of inner tube, improve the drying of pumping inner tube
Degree.
Instrument tip bottom is provided with handle and communication interface 11, and one end of communication interface 11 connects the circuit board in gun body
5, the other end connection data transmission device of communication interface 11.
Carrying out practically process is：
Power set 9 are evacuated by sampling pump in instrument etc. the flue gas in flue is drawn into probe tube 2, aspiration pump
With the synergy of pneumatic flow measurement apparatus 8, it is ensured that extract the stability of gas flow, the flue gas in flue first passes through, and adopts
The filter 1 of sample rifle front end, dust in flue is filtered, play a part of protecting Temperature Humidity Sensor；Flue gas flows in probe tube 2
When dynamic, pipe outer wall is wound with heating tape, and heating tape whole process is to sampling pipe and the measurement heated at constant temperature of chamber 12, it is ensured that aqueous vapor is sampling
Frozen-free in pipe 2, while ensure that tested gas reaches the temperature range of optimum measurement；Then flue gas is drawn into rear end with resistance
In the measurement chamber 12 for holding sensor probe, so as to measure smoke moisture；Measurement chamber 12 is arranged on the end of probe tube 2, its
In enlarging flow-guiding type structure design, the diameter of measurement chamber 12 is more than the diameter of probe tube 2, measures the cramped construction of chamber 12,
Ensure that Temperature Humidity Sensor fully contacts with tested gas, it is ensured that the accuracy of measurement.Finally by smoke moisture detected etc.
Data are transferred in data transmission device by communication interface 11.
As shown in Fig. 2 the condensing unit 6 is arranged to trap impact type condensing unit 6, including end is provided with into outlet nozzle
14 transparent condensing bulb 17, it is connected respectively with front and rear cavity by entering outlet nozzle 14 inside transparent condensing bulb 17, transparent condensing bulb
Sealed at 17 port by sealing ring 16 and flange 15.Condensing unit 6 can be dropped using the cavity in transparent condensing bulb 17
On the one hand temperature, the high-temperature flue gas pumped out out of flue reduce flue-gas temperature, released after the recovery of condensing unit 6
Fume afterheat；On the other hand the Water vapor condensation Cheng Shui in flue gas, the condensation latent heat of vaporization is released, condensate liquid further reduces
The discharge of pollutant, reduces total release.
As shown in figure 3, pneumatic flow measurement apparatus 8 includes metering hole 21, pressure-tapping nozzle 19 and meter temperature meter pressure sensor 18, gas
Along setting restricted orifice 21, the both sides symmetry arrangement of metering hole 21 at the axis of gas circuit main body 20 in road main body 20
Pressure-tapping nozzle 19 is provided with, counts warm two air pressure input interfaces for counting pressure sensor 18 pressure-tapping nozzle 19 with the both sides of metering hole 21 respectively
Connection.The pneumatic flow signal detected is transferred to communication by meter temperature meter pressure sensor 18 and connect by pneumatic flow measurement apparatus 8
Mouth 11, then be transferred to by communication interface 11 in data transmission device.
Filtration drying device 7 is arranged to two layers of filter core, and first layer filter core is arranged to groined type high-pressure electrostatic adsorption net；Second
The cellular porous filter medium of sintering metal is filled with layer filter core.First layer filter core electrion, makes particulate matter band in flue gas
Positive charge, the particulate matter impurity in flue gas is adsorbed, the cellular structures of second layer filter core, effectively using mesh and
Spacing reduces aeration resistance to greatest extent, improves filter area, reduces deashing time interval, and the two of the filtration drying device 7
Layer filter core is easier to dismantle, and is easy to clean and changes, and the flue gas after the filtering of filtration drying device 7 passes through the row of exhaust outlet 10
Go out, avoid environmental pollution, improve the quality for detecting environment where testing staff.
Extraction-type instrument for testing moisture content in smoke in the utility model with will be warm and humid in existing portable capacitance-resistance method equipment
Degree sensor is placed on the front end of probe tube 2 and compared, and can overcome the influence of high humidity in flue, high dirt to Temperature Humidity Sensor, reacts
Speed is faster, the degree of accuracy is higher, service life is longer.
The advantage that instrument for testing moisture content in smoke in the utility model is compared with the instrument of online CEMS measurement water capacities
For：Integrated level is high, probe tube 2, is evacuated power set 9 and the integration of measurement chamber 12, overall portable, can be quick square as needed
Just transformed samples point is increased.
Described above is not to limitation of the present utility model, it should be pointed out that：For the ordinary skill people of the art
For member, on the premise of the utility model in essence scope is not departed from, some variations, modifications, additions or substitutions can also be made,
These improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (6)
1. a kind of portable capacitance-resistance method instrument for testing moisture content in smoke, it is characterised in that the front end of instrument sets probe tube, probe tube
Front end be provided with filter, heater block is provided with the lateral wall of probe tube, the rear end of probe tube is provided with measurement chamber；
Resistance-capacitance type Temperature Humidity Sensor is provided with measurement chamber, measurement chamber passes through condensing unit and filtration drying device and air pressure stream
Measuring device is connected, and pneumatic flow measurement apparatus is connected with pumping power set, and pumping power set pass through tracheae and exhaust
Mouth connection.
A kind of 2. portable capacitance-resistance method instrument for testing moisture content in smoke according to claim 1, it is characterised in that the air pressure stream
It is interior along in gas circuit main body that measuring device includes metering hole, pressure-tapping nozzle and meter temperature meter pressure sensor, gas circuit main body
Restricted orifice is set at axis, and the both sides symmetry arrangement of metering hole is provided with pressure-tapping nozzle, counts two air pressure of temperature meter pressure sensor
Pressure-tapping nozzle of the input interface respectively with metering hole both sides is connected.
A kind of 3. portable capacitance-resistance method instrument for testing moisture content in smoke according to claim 1, it is characterised in that the condensation dress
Install and be set to trap impact type condensing unit, including end is provided with the transparent condensing bulb into outlet nozzle, leads to inside transparent condensing bulb
Cross into outlet nozzle and be connected respectively with front and rear cavity, pass through sealing ring and flange seal at the port of transparent condensing bulb.
A kind of 4. portable capacitance-resistance method instrument for testing moisture content in smoke according to claim 1, it is characterised in that the heating part
Part is arranged to heating tape or heating rod, and helically the arrangement of formula Stagger-wrap is arranged on the outer wall of pumping inner tube for heating tape.
5. a kind of portable capacitance-resistance method instrument for testing moisture content in smoke according to claim 1, it is characterised in that the mistake is filtered dry
Dry device is arranged to two layers of filter core, and first layer filter core is arranged to groined type high-pressure electrostatic adsorption net；It is filled with second layer filter core
The cellular porous filter medium of sintering metal.
A kind of 6. portable capacitance-resistance method instrument for testing moisture content in smoke according to claim 1, it is characterised in that the instrument end
End bottom is provided with handle and communication interface, and one end of communication interface connects the circuit board in gun body, the other end of communication interface
Connect data transmission device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721018602.5U CN207066815U (en) | 2017-08-15 | 2017-08-15 | A kind of portable capacitance-resistance method instrument for testing moisture content in smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721018602.5U CN207066815U (en) | 2017-08-15 | 2017-08-15 | A kind of portable capacitance-resistance method instrument for testing moisture content in smoke |
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| Publication Number | Publication Date |
|---|---|
| CN207066815U true CN207066815U (en) | 2018-03-02 |
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ID=61515775
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| CN201721018602.5U Active CN207066815U (en) | 2017-08-15 | 2017-08-15 | A kind of portable capacitance-resistance method instrument for testing moisture content in smoke |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374363A (en) * | 2018-12-25 | 2019-02-22 | 同方威视技术股份有限公司 | A kind of electronic nose sampler |
| CN110487856A (en) * | 2019-08-21 | 2019-11-22 | 安徽工业大学 | A kind of portable capacitance-resistance method dust water capacity on-line measurement device and method |
| CN112304712A (en) * | 2020-10-26 | 2021-02-02 | 宝钢特钢韶关有限公司 | Device and method for measuring moisture content in high-temperature furnace gas |
| CN112649475A (en) * | 2020-12-21 | 2021-04-13 | 南京吉纳波环境测控有限公司 | High-temperature flue gas humidity meter sensor |
-
2017
- 2017-08-15 CN CN201721018602.5U patent/CN207066815U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374363A (en) * | 2018-12-25 | 2019-02-22 | 同方威视技术股份有限公司 | A kind of electronic nose sampler |
| CN110487856A (en) * | 2019-08-21 | 2019-11-22 | 安徽工业大学 | A kind of portable capacitance-resistance method dust water capacity on-line measurement device and method |
| CN112304712A (en) * | 2020-10-26 | 2021-02-02 | 宝钢特钢韶关有限公司 | Device and method for measuring moisture content in high-temperature furnace gas |
| CN112304712B (en) * | 2020-10-26 | 2024-03-01 | 宝武杰富意特殊钢有限公司 | Device and method for measuring moisture content in high-temperature furnace gas |
| CN112649475A (en) * | 2020-12-21 | 2021-04-13 | 南京吉纳波环境测控有限公司 | High-temperature flue gas humidity meter sensor |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 266000 No. 1, Yueyang Road, Chengyang District, Qingdao City, Shandong Patentee after: Qingdao Zhongrui Intelligent Instrument Co.,Ltd. Address before: 266000, Shandong Road, Chengyang District, Shandong, Qingdao Province, Xian Road, No. 3 Patentee before: QINGDAO ZHONGRUI INTELLIGENT INSTRUMENT Co.,Ltd. |
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| CP03 | Change of name, title or address |