CN210533813U

CN210533813U - Flue gas on-line acquisition and detection device

Info

Publication number: CN210533813U
Application number: CN201921381387.4U
Authority: CN
Inventors: 王相; 田聪聪; 庞喜龙
Original assignee: Weihai Jingxun Changtong Electronic Technology Co Ltd
Current assignee: Weihai Jingxun Changtong Electronic Technology Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-05-15
Anticipated expiration: 2029-08-23

Abstract

The utility model provides a flue gas on-line collection and detection device belongs to environmental protection control technical field. The technical scheme is as follows: the utility model provides a flue gas on-line collection and detection device, its characterized in that, includes condenser, steam trap, filter and the vacuum pump that loops through the gas circuit and connect, the gas circuit entry with be provided with temperature sensor between the condenser, the condenser with be provided with humidity transducer between the steam trap, the steam trap with be provided with particulate matter concentration detecting element between the filter, the filter with be provided with the gas monitoring unit between the vacuum pump. The utility model has the advantages that: by a pump suction type sampling method, the purposes of quickly sampling, quickly contacting a detector head with gas of a detector and removing the influence of the external environment on the components of the gas to be detected are achieved, so that a more accurate numerical value is obtained; the process from gas sampling to gas monitoring is completed at higher efficiency, and the detection is quick; besides sampling detection, the system can also process the detected gas, and does not pollute the atmosphere after being discharged; the structural design is more compact, and the installation, the maintenance and the use are convenient.

Description

Flue gas on-line acquisition and detection device

Technical Field

The utility model relates to an environmental protection control technical field especially relates to a flue gas on-line collection and detection device.

Background

On-line flue gas monitoring system is diversified on the current market, but often not have good gas circuit system, can't handle the flue gas of certain pollution degree, at high temperature, the condition that makes measuring gas receive external environment interference often can appear under the objective adverse monitoring environment condition such as high humidity and high dirt, cause the inaccuracy of gas detection precision, the monitoring result reports the mistake, not only can not play the effect of monitoring, still led to the fact very big work load for the staff, the meaning of detecting has just so been lost, consequently design a section and avoid receiving external environment interference such as high temperature, high humidity and high dirt on-line flue gas monitoring system just seems to be especially important.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an avoid receiving external environment interference such as high temperature, high humidity and high dirt to improve the flue gas monitoring devices of the monitoring degree of accuracy.

The utility model discloses a realize through following technical scheme: the utility model provides a flue gas on-line collection and detection device, its characterized in that, includes condenser, steam trap, filter and the vacuum pump that loops through the gas circuit and connect, the gas circuit entry with be provided with temperature sensor between the condenser, the condenser with be provided with humidity transducer between the steam trap, the steam trap with be provided with particulate matter concentration detecting element between the filter, the filter with be provided with the gas monitoring unit between the vacuum pump.

Under the effect of the vacuum pump, gas enters from an air pipe of an online flue gas monitoring device connecting flue, directly enters a built-in temperature sensor after entering, measures the current flue gas temperature firstly, then is influenced by pressure under the effect of the vacuum pump, enters the condenser to be cooled, then enters the humidity sensor to measure the humidity of the flue gas, then enters the steam trap to remove redundant moisture, impurity pollutants and redundant flue gas, carries out drying treatment, then enters the particulate matter concentration detection unit to measure the value of the particulate matter concentration, then enters the filter, carries out secondary filtration to filter the particulate matter, enters the gas monitoring unit after eliminating the influence of the particulate matter in the gas on the flue gas, and detects the polluted gas in the gas as follows: carbon dioxide, sulfur dioxide, carbon monoxide, nitrogen dioxide, and the like. And finally, the gas is discharged by the vacuum pump, and the vacuum pump can also be connected with a sampling device to sample the gas.

The particulate matter concentration detection unit is a PM2.5 detection module, and the gas monitoring unit is a gas monitoring module. The gas monitoring module can be used for detecting the concentration of gases such as carbon dioxide, sulfur dioxide, carbon monoxide, nitrogen dioxide and the like.

Or the two ends of the filter are provided with bypasses, and the inlet of the bypass, the inlet of the filter and the outlet of the particulate matter concentration detection unit are connected through a three-way valve. When the gas reaches the national emission standard after being detected by the particulate matter concentration detection unit, the gas can directly enter the gas monitoring unit through the bypass without passing through the filter, so that the detection and emission speeds can be increased.

Still include with humidity transducer, temperature sensor, particulate matter concentration detection unit and the gaseous computer that monitoring unit electricity is connected, the computer is connected with the display. The computer is used for controlling the device, processing and storing data, and the display is used for displaying the data.

Still include the base, the bottom of base is provided with the condenser, one side of condenser is provided with temperature sensor, be provided with directly over temperature sensor humidity transducer, be provided with directly over humidity transducer the steam trap, be provided with directly over the condenser the vacuum pump, the top of condenser is provided with the filter, the filter with be provided with side by side between the vacuum pump particulate matter concentration detecting element and gas monitoring unit, particulate matter concentration detecting element is close to the steam trap. The arrangement can make the structure of the device more compact, and the layout and the pipeline connection more convenient and save.

The gas monitoring unit is a carbon dioxide monitoring unit, or the gas monitoring unit is a sulfur dioxide monitoring unit, or the gas monitoring unit is a carbon monoxide monitoring unit, or the gas monitoring unit is a nitrogen dioxide monitoring unit.

The three-way valve may employ an automatically controlled solenoid valve.

The utility model has the advantages that:

1. the interference of external environments such as high temperature, high humidity, high dust and the like is avoided, and the accurate detection can be carried out in a severe monitoring environment;

2. by a pump suction type sampling method, the purposes of quickly sampling, quickly contacting a detector head with gas of a detector and removing the influence of the external environment on the components of the gas to be detected are achieved, so that a more accurate numerical value is obtained;

3. the process from gas sampling to gas monitoring is completed at higher efficiency, and the detection is quick;

4. the system can process the detected gas without polluting the atmosphere;

5. the structure design is more compact, the volume is small, and the transportation, the installation, the maintenance and the use are convenient.

Drawings

Fig. 1 is a gas circuit connection diagram of embodiment 1 of the present invention.

Fig. 2 is a gas circuit connection diagram of embodiment 2 of the present invention.

Fig. 3 is a schematic view of the planar structure of the present invention without gas circuit connection.

Fig. 4 is a schematic view of the three-dimensional structure without gas circuit connection of the present invention.

Wherein the reference numerals are: 1. a temperature sensor; 2. a humidity sensor; 3. a steam trap; 4. a particulate matter concentration detection monitoring unit; 5. a filter; 6. a gas monitoring unit; 7. a vacuum pump 8 and a condenser; 9. a three-way valve; 10. an AC contactor; 11. a power supply is switched on and off.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

Example 1:

referring to fig. 1, fig. 3 and fig. 4, the utility model relates to a flue gas on-line collection and detection device, including condenser 8, steam trap 3, filter 5 and the vacuum pump 7 that loops through the gas circuit connection, be provided with temperature sensor 1 between gas circuit entry and the condenser 5, be provided with humidity transducer 2 between condenser 8 and the steam trap 3, be provided with particulate matter concentration detecting element 4 between steam trap 3 and the filter 5, be provided with gas monitoring unit 6 between filter 5 and the vacuum pump 7.

Under the effect of vacuum pump 7, gaseous trachea from online flue gas monitoring devices connection flue gets into, directly lead to built-in temperature sensor 1 after getting into, the measurement of current flue gas temperature is carried out earlier, then under vacuum pump 7's effect, be influenced by pressure, it cools down in the middle of the condenser 8 to enter into, subsequently, enter into in the humidity transducer 2, measure the humidity of flue gas, then get into steam trap 3, get rid of unnecessary moisture, impurity pollutant and unnecessary flue gas, carry out drying process, then enter into the value of measuring particulate matter concentration in the particulate matter concentration detecting element 4, subsequently enter into filter 5, secondary filter, filter the particulate matter, after getting rid of the influence of particulate matter in the gas to the flue gas, get into gas monitoring unit 6, discharge through vacuum pump 7 at last, vacuum pump 7 also can connect sampling device and carry out gaseous sampling.

The particulate matter concentration detection unit 4 is a PM2.5 detection module, and the gas monitoring unit 6 is a gas monitoring module. The gas monitoring module can be used for detecting the concentration of gases such as carbon dioxide, sulfur dioxide, carbon monoxide, nitrogen dioxide and the like.

The device also comprises a computer which is electrically connected with the humidity sensor 2, the temperature sensor 1, the particulate matter concentration detection unit 4 and the gas monitoring unit 6, and the computer is connected with a display. The computer is used for controlling the device and processing and storing data, and the display is used for displaying the data.

Still include the base, the bottom of base is provided with condenser 8, one side of condenser 8 is provided with temperature sensor 1, be provided with humidity transducer 2 directly over temperature sensor 1, be provided with steam trap 3 directly over humidity transducer 2, be provided with vacuum pump 7 directly over condenser 3, top one side of condenser 8 is provided with filter 5, be provided with particulate matter concentration detecting element 4 and gas monitoring unit 6 between filter 5 and the vacuum pump 7 side by side, particulate matter concentration detecting element 4 is close to steam trap 3. An alternating current contactor 10 is arranged on the other side of the base and located on the condenser 8, a switching power supply 11 is arranged right above the alternating current contactor 10, the alternating current contactor 10 and the switching power supply 11 are used for controlling the device, and the specific connection mode can adopt the prior art. The arrangement can make the structure of the device more compact, and the layout and the pipeline connection more convenient and save.

Example 2:

as shown in fig. 2, in example 1, a bypass is provided at both ends of the filter 5, and an inlet of the bypass, an inlet of the filter 5, and an outlet of the particulate matter concentration detection unit 4 are connected by a three-way valve 9. When the gas reaches the national emission standard after being detected by the particulate matter concentration detection unit 4, the gas can directly enter the gas monitoring unit 6 through a bypass without passing through the filter 5, so that the detection and emission speed can be increased.

The rest is the same as example 1.

The technical features that the utility model has not been described can be realized through or adopt prior art, and no longer give unnecessary details here, and of course, the above-mentioned explanation is not right the utility model discloses a restriction, the utility model discloses also not only be limited to the above-mentioned example, ordinary skilled person in this technical field is in the utility model discloses a change, modification, interpolation or replacement made in the essential scope also should belong to the utility model discloses a protection scope.

Claims

1. The utility model provides a flue gas on-line collection and detection device, its characterized in that, includes condenser, steam trap, filter and the vacuum pump that loops through the gas circuit and connect, the gas circuit entry with be provided with temperature sensor between the condenser, the condenser with be provided with humidity transducer between the steam trap, the steam trap with be provided with particulate matter concentration detecting element between the filter, the filter with be provided with the gas monitoring unit between the vacuum pump.

2. The online acquisition and detection device for flue gas according to claim 1, wherein the particulate matter concentration detection unit is a PM2.5 detection module, and the gas monitoring unit is a gas monitoring module.

3. The online smoke collection and detection device according to claim 1, wherein a bypass is provided at both ends of the filter, and an inlet of the bypass, an inlet of the filter and an outlet of the particulate matter concentration detection unit are connected by a three-way valve.

4. The online smoke collecting and detecting device of claim 1, further comprising a computer electrically connected with the humidity sensor, the temperature sensor, the particulate matter concentration detecting unit and the gas monitoring unit, wherein the computer is connected with a display.

5. The online smoke collection and detection device according to claim 1, further comprising a base, wherein the condenser is arranged at the bottom of the base, the temperature sensor is arranged on one side of the condenser, the humidity sensor is arranged right above the temperature sensor, the steam trap is arranged right above the humidity sensor, the vacuum pump is arranged right above the condenser, the filter is arranged at the top of the condenser, the particulate matter concentration detection unit and the gas monitoring unit are arranged between the filter and the vacuum pump side by side, and the particulate matter concentration detection unit is close to the steam trap.

6. The online acquisition and detection device for flue gas according to claim 1, wherein the gas monitoring unit is a carbon dioxide monitoring unit;

or the gas monitoring unit is a sulfur dioxide monitoring unit;

or the gas monitoring unit is a carbon monoxide monitoring unit;

or the gas monitoring unit is a nitrogen dioxide monitoring unit.