CN213689381U - Flue exhaust gas analysis device - Google Patents
Flue exhaust gas analysis device Download PDFInfo
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- CN213689381U CN213689381U CN202022464885.4U CN202022464885U CN213689381U CN 213689381 U CN213689381 U CN 213689381U CN 202022464885 U CN202022464885 U CN 202022464885U CN 213689381 U CN213689381 U CN 213689381U
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Abstract
The utility model belongs to flue exhaust measures the field, discloses a flue exhaust analysis device. The utility model discloses a sampling processing device, gas analysis device, standard gas device, reference gas collection device and absorption pressure controlling means, sampling processing device drainage separation module, sulphuric acid spraying module, NO2The gas analysis device comprises an analyzerThe first and the second analyzers, the output end of the gas analysis device is connected with the pressure absorption control device, and the standard gas device is internally provided with NO and SO which are independently and separately packaged2、CO、CO2Four standard gases. The device carries out the treatment of a sample gas line, a reference gas line and a standard gas line, increases the accuracy of gas analysis, and can simultaneously measure various gases by adopting an alternate flow modulation type non-dispersive infrared analyzer and a magnetic pressure type oxygen analyzer, so that the gas analysis precision is high and the stability is good.
Description
Technical Field
The utility model relates to a flue exhaust measures the field, concretely relates to is a flue exhaust analysis device.
Background
The atmospheric pollution prevention and control is the key point of the environmental protection work in China, and the process of observing and analyzing the change of smoke concentration and the content of smoke and the influence on the environment is one of the main monitoring items of pollution source monitoring of metallurgical enterprises, chemical enterprises and other industrial enterprises.
The purpose of flue gas monitoring is to monitor whether the emission concentration and the emission amount of various pollutants in flue gas meet the emission standard regulated by the state, monitor the performance and the service condition of a flue gas purification device and pollution prevention measures, and provide a basis for atmospheric environment management and atmospheric environment quality evaluation.
The existing flue gas analysis device has the defects of single gas type, low measurement precision and poor stability, so that the flue gas measurement is not standard and can not meet the requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flue exhaust analysis device, it is single to solve the gas type of measuring among the current device, and measurement accuracy is not high, the not good problem of stability.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
a flue gas analysis device comprises a sampling processing device, a standard gas device, a reference gas collecting device, a gas analysis device and an absorption pressure control device;
the sampling treatment device comprises a drainage and separation module, a sulfuric acid spraying module and NO2The output end of the exhaust water separation module is connected with the input end of a sulfuric acid spraying module, and the output end of the sulfuric acid spraying module is connected with NO2Input connection of the/NO conversion module, the NO2The output end of the/NO conversion module is connected with the input end of the dust treatment module, the output end of the dust treatment module is connected with the input end of the cooling module, and the output ends of the cooling module, the standard gas device and the reference gas collecting device are all connected to the gas analysis device;
the gas analysis device comprises a first analyzer and a second analyzer, and the output end of the gas analysis device is connected with the absorption pressure control device; the standard gas device is internally provided with NO and SO which are independently subpackaged2、CO、CO2And the output end of the standard gas bottle is connected with the four input ends of the electromagnetic valve, and the four output ends of the electromagnetic valve are connected with the input end of the pressure regulator.
The water discharge separation module comprises a water discharge separator, an electronic precooler and a water discharge catcher, the water discharge separator is respectively connected with the electronic precooler and the water discharge catcher, the sulfuric acid spraying module is a mist expelling device, the dust treatment module is a first secondary filter, and the cooling modules are an electronic precooler and an electronic main cooler.
Further, the first analyzer is an alternating flow modulation type non-dispersive infrared analyzer, and the second analyzer is a magnetic pressure type oxygen analyzer.
Further, the reference gas collecting device comprises an air filter, a humidifier, a zero purifier, a secondary filter II, silica gel and a protection filter, wherein the air filter is connected with the input end of the humidifier, the output end of the humidifier is connected with the input end of the zero purifier, the output end of the zero purifier is connected with the input end of the secondary filter II, the output end of the secondary filter II is connected with the input end of the electronic main cooler, the output end of the electronic main cooler is connected with the inlet of the silica gel box, the outlet of the silica gel box is connected with the input end of the protection filter, and the output end of the protection filter is connected with the gas analysis.
Furthermore, the absorption pressure control device comprises an adjusting box, a buffer box and a second pump, one end of the adjusting box is connected with the input end of the air filter, the other end of the adjusting box is connected with the input end of the buffer box, and the output end of the buffer box is connected with the second pump.
Furthermore, the output end of the first analyzer is connected with a first capillary, the input end of the second analyzer is connected with a second capillary and a third capillary, and the output end of the second analyzer is also connected with a second capillary.
Furthermore, the input end of the gas analysis device is also provided with a first electromagnetic valve, a third electromagnetic valve and a flowmeter, and the flowmeter is connected with a buffer tank.
The utility model has the advantages that:
the utility model discloses a sampling processing apparatus, gas analysis device, standard gas device, reference gas collection device and the absorption pressure controlling means that set up have carried out the processing of appearance gas line, reference gas line and standard gas line, have increased the gaseous accuracy of analysis, adopt alternately non-dispersion infrared analysis appearance (NDIR) of flow modulation type and magnetism pressure type oxygen analysis appearance (MPA) simultaneously can the simultaneous measurement multiple gas for gas analysis precision is high, and stability is good.
Drawings
FIG. 1 is a structural view of a flue gas analyzing apparatus;
FIG. 2 is a structural view of a sampling processing apparatus of a flue gas analyzing apparatus;
FIG. 3 is a block diagram of a standard gas unit of a flue gas analyzing apparatus;
fig. 4 is a structural view of a gas analyzer of a flue gas analyzer;
fig. 5 is a structural diagram of an absorption pressure control device of a flue gas analyzer.
Detailed Description
The present invention will be described with reference to the accompanying drawings and examples.
As shown in fig. 1 to 5, a flue gas analyzing apparatus includes a sampling processing apparatus, a standard gas apparatus, a reference gas collecting apparatus, a gas analyzing apparatus, and an absorption pressure controlling apparatus.
The sampling processing device comprises a water discharge separation module, a sulfuric acid spraying module, an NO2/NO conversion module, a dust processing module and a cooling module, wherein the output end of the water discharge separation module is connected with the input end of the sulfuric acid spraying module, and the output end of the sulfuric acid spraying module is connected with the NO conversion module2Input connection of the/NO conversion module, NO2The output end of the/NO conversion module is connected with the input end of the dust treatment module, the output end of the dust treatment module is connected with the input end of the cooling module, and the output ends of the cooling module, the standard gas device and the reference gas collecting device are all connected into the gas analysis device.
The gas analysis device comprises a first analyzer and a second analyzer, and the output end of the gas analysis device is connected with the absorption pressure control device; the standard gas device is internally provided with NO and SO which are independently subpackaged2、CO、CO2And the output end of the standard gas bottle is connected with the four input ends of the electromagnetic valve, and the four output ends of the electromagnetic valve are connected with the input end of the pressure regulator.
The water discharge separation module comprises a water discharge separator, an electronic precooler and a water discharge catcher, the water discharge separator is respectively connected with the electronic precooler and the water discharge catcher, the sulfuric acid spraying module is a mist expelling device, the dust treatment module is a first secondary filter, and the cooling modules are an electronic precooler and an electronic main cooler.
Preferably, the first analyzer is an alternating-flow modulation type non-dispersive infrared analyzer (NDIR), and the second analyzer is a magnetic pressure type oxygen analyzer (MPA).
The device comprises the following equipment types:
the model of the electromagnetic valve I is SV-7; the second type of the electromagnetic valve is SV-8; the model of the electromagnetic valve III is SV-1A; the model number of the electromagnetic valve IV is SV-1 to SV-6.
The first type of the capillary tube is SA-152-QJ; the second type of the capillary tube is SA-131-QJ; the first type of capillary tube is SA-090-KJ.
Meanwhile, the reference gas collecting device comprises an air filter, a humidifier, a zero purifier, a secondary filter II, silica gel and a protective filter, the air filter is connected with the input end of the humidifier, the output end of the humidifier is connected with the input end of the zero purifier, the output end of the zero purifier is connected with the input end of the secondary filter II, the output end of the secondary filter II is connected with the input end of an electronic main cooler, the output end of the electronic main cooler is connected with the inlet of a silica gel box, the outlet of the silica gel box is connected with the input end of the protective filter, and the output end.
The device processing end is an absorption pressure control device and comprises an adjusting box, a buffer box and a second pump, one end of the adjusting box is connected with the input end of the air filter, the other end of the adjusting box is connected with the input end of the buffer box, and the output end of the buffer box is connected with the second pump.
Furthermore, the output end of the first analyzer is connected with a first capillary, the input end of the second analyzer is connected with a second capillary and a third capillary, and the output end of the second analyzer is also connected with a second capillary. The input end of the gas analysis device is also provided with a first electromagnetic valve, a third electromagnetic valve and a flowmeter, and the flowmeter is connected with a buffer tank.
When gas detection is carried out, the sampled gas enters a drainage separation device to reduce the dew point temperature of the sampled gas to the temperature of a cabinet, drainage separation is carried out, and the separated drainage is collected to a drainage catcher I; then, further cooling the gas which is cooled to the cabinet temperature dew point in the drainage separator through an electronic precooler, drying and separating, collecting the separated drainage into a drainage catcher II, collecting sulfuric acid spray in the sampling gas through a mist expeller, and treating NO in the sampling gas treated by the mist expeller2The catalyst detection pool is used for converting NO into NO, then dust in the sampling gas is collected through a secondary filter I, and a needle valve is used for sampling the gasThe flow of the gas is adjusted, then the sampling gas is pressurized by a two-wire type pump, meanwhile, the gas is exhausted to a bypass, the pressurized sampling gas is further cooled in an electronic main cooler, the water is drained and separated, and the sampling gas is sent to a first analyzer of a gas analysis device through a first electromagnetic valve.
When standard gas is introduced, the standard gas is introduced from a standard gas device, the pressure of the standard gas is reduced through a pressure regulator, the pressure regulator is provided with a needle valve for flow regulation, the standard gas is exchanged through a solenoid valve four, the standard gas is sent into a gas analysis device through a solenoid valve one, and the solenoid valve one blocks the input of sampling gas when the standard gas is introduced.
The reference gas input is to collect dust in the atmosphere for the reference gas through an air filter, then the moisture concentration of the reference gas is consistent with that of the sampling gas through a humidifier, and the gas treated by the humidifier is subjected to zero purifier to remove NOx and SO in the reference gas2And collecting dust in the reference gas through a secondary filter I, then cooling and draining and separating through an electronic main cooler, finally removing gas moisture through silica gel, removing particles from the silica gel through a protective filter, and sending the gas into a gas analysis device.
In the gas analyzer, the flow rate of the sampling gas is monitored by a flowmeter, the influence of pulsation from a gas filling pump and the like is prevented by a buffer tank, two electromagnetic valves are used for atmospheric zero calibration, three electromagnetic valves are used for one fluid modulation of the analyzer, the analyzer is loaded with 4 gas components at most and controls the flow rate of the sampling gas by a capillary tube I, the analyzer is controlled by a capillary tube II and controls the flow rate of the sampling gas by a capillary tube III.
The absorption pressure control device adjusts the pressure of the sampling gas and the pressure of the reference gas through the adjusting box, the pulsation of the absorption pump is restrained through the buffer box, and the sampling gas and the reference gas are absorbed through the second pump and output.
The device can simultaneously test NOx and SO2、CO、CO2And O concentration, by the design of each gas line, gas parameters convenient for measurement can be obtained,and the measurement precision of the device is further improved by adopting an alternating flow modulation type non-dispersive infrared analyzer (NDIR) and a magnetic pressure type oxygen analyzer (MPA).
Claims (7)
1. A flue gas analysis device is characterized by comprising a sampling processing device, a standard gas device, a reference gas collecting device, a gas analysis device and an absorption pressure control device;
the sampling treatment device comprises a drainage and separation module, a sulfuric acid spraying module and NO2The output end of the exhaust water separation module is connected with the input end of a sulfuric acid spraying module, and the output end of the sulfuric acid spraying module is connected with NO2Input connection of the/NO conversion module, the NO2The output end of the/NO conversion module is connected with the input end of the dust treatment module, the output end of the dust treatment module is connected with the input end of the cooling module, and the output ends of the cooling module, the standard gas device and the reference gas collecting device are all connected to the gas analysis device;
the gas analysis device comprises a first analyzer and a second analyzer, and the output end of the gas analysis device is connected with the absorption pressure control device; the standard gas device is internally provided with NO and SO which are independently subpackaged2、CO、CO2And the output end of the standard gas bottle is connected with the four input ends of the electromagnetic valve, and the four output ends of the electromagnetic valve are connected with the input end of the pressure regulator.
2. The flue gas analysis device according to claim 1, wherein the drain separator module comprises a drain separator, an electronic precooler and a drain catcher, the drain separator is respectively connected with the electronic precooler and the drain catcher, the sulfuric acid spraying module is a mist expeller, the dust treatment module is a first secondary filter, and the cooling modules are an electronic precooler and an electronic main cooler.
3. The flue gas analyzer according to claim 1, wherein the first analyzer is a non-dispersive infrared analyzer of an alternating flow modulation type, and the second analyzer is a magnetic pressure type oxygen analyzer.
4. The flue gas analysis device according to claim 1, wherein the reference gas collecting device comprises an air filter, a humidifier, a zero purifier, a second secondary filter, silica gel and a protective filter, the air filter is connected with the input end of the humidifier, the output end of the humidifier is connected with the input end of the zero purifier, the output end of the zero purifier is connected with the input end of the second secondary filter, the output end of the second secondary filter is connected with the input end of the electronic main cooler, the output end of the electronic main cooler is connected with the inlet of the silica gel box, the outlet of the silica gel box is connected with the input end of the protective filter, and the output end of the protective filter is connected with the gas analysis device.
5. The flue gas analysis device according to claim 1, wherein the absorption pressure control device comprises a regulating tank, a buffer tank and a second pump, wherein one end of the regulating tank is connected with the input end of the air filter, the other end of the regulating tank is connected with the input end of the buffer tank, and the output end of the buffer tank is connected with the second pump.
6. The flue gas analysis device according to claim 3, wherein the first output end of the analyzer is connected with a first capillary, the second input end of the analyzer is connected with a second capillary and a third capillary, and the output end of the analyzer is also connected with a second capillary.
7. The flue gas analysis device according to claim 1, wherein the input end of the gas analysis device is further provided with a first electromagnetic valve, a third electromagnetic valve and a flow meter, and the flow meter is connected with a buffer tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022464885.4U CN213689381U (en) | 2020-10-30 | 2020-10-30 | Flue exhaust gas analysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022464885.4U CN213689381U (en) | 2020-10-30 | 2020-10-30 | Flue exhaust gas analysis device |
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| Publication Number | Publication Date |
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| CN213689381U true CN213689381U (en) | 2021-07-13 |
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| CN202022464885.4U Active CN213689381U (en) | 2020-10-30 | 2020-10-30 | Flue exhaust gas analysis device |
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| CN (1) | CN213689381U (en) |
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