CN115127899A - Converter coal gas on-line analysis sample gas processing system - Google Patents

Converter coal gas on-line analysis sample gas processing system Download PDF

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Publication number
CN115127899A
CN115127899A CN202210934891.2A CN202210934891A CN115127899A CN 115127899 A CN115127899 A CN 115127899A CN 202210934891 A CN202210934891 A CN 202210934891A CN 115127899 A CN115127899 A CN 115127899A
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sample gas
gas
inlet
condenser
sample
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吴正伟
邵永成
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Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd
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Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd
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Priority to CN202210934891.2A priority Critical patent/CN115127899A/en
Publication of CN115127899A publication Critical patent/CN115127899A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G01N1/4055—Concentrating samples by solubility techniques
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/34—Purifying; Cleaning
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
    • 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
    • G01N2001/227—Sampling from a flowing stream of gas separating gas from solid, e.g. filter
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G01N1/4055—Concentrating samples by solubility techniques
    • G01N2001/4066—Concentrating samples by solubility techniques using difference of solubility between liquid and gas, e.g. bubbling, scrubbing or sparging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
    • G01N2001/4088—Concentrating samples by other techniques involving separation of suspended solids filtration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
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  • Engineering & Computer Science (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention belongs to the technical field of measurement of on-line analysis instruments, and particularly discloses a sample gas treatment system for on-line analysis of converter gas.

Description

Converter coal gas on-line analysis sample gas processing system
Technical Field
The invention belongs to the technical field of measurement of online analytical instruments, and particularly relates to a sample gas processing system for online analysis of converter gas.
Background
The converter gas is a high-quality gas fuel and has high recycling value. When the carbon monoxide and the oxygen in the converter flue gas meet the recovery requirements, the carbon monoxide and the oxygen can be recovered to a gas holder for storage, otherwise, the carbon monoxide and the oxygen can only be released through a release tower, so that the energy waste is caused, and the environment is polluted. Therefore, analysis of carbon monoxide and oxygen in the flue gas of the converter is necessary. The converter gas recovery on-line analysis system can continuously detect the contents of CO and O2 in the converter gas so as to accurately judge whether the converter gas starts to be recovered, is key data for controlling the quality of the converter gas and ensuring the safety production in the converter gas recovery process, and is also an important ring for realizing high quality, high yield, energy conservation and consumption reduction.
At present, a converter gas direct extraction type online analysis sample gas treatment system commonly used in China has a simple water washing device, and acid substances with high dust content and strong corrosivity in converter gas cannot be effectively removed to block a gas sampling pipeline, so that continuous sampling is blocked, and the requirements of monitoring quality, energy conservation, emission reduction and safe sampling cannot be met.
Disclosure of Invention
The invention aims to solve the technical problem of providing a converter gas on-line analysis sample gas treatment system to solve the problem that a pipeline of sampling equipment in the prior art is easy to block so as to block continuous sampling.
The technical scheme for solving the technical problem of the invention is as follows:
a converter gas on-line analysis sample gas treatment system comprises a gas pipeline, a straight-through sampling probe, a metal net pressing filter, a steam jet pump, a pneumatic switching ball valve MV01, pneumatic switching ball valves MV11 and MV21, a bath spray header, a washing tank 1, a nozzle ejector, a porous flow equalizing plate, an air pump, a vortex sample gas condenser, an electromagnetic valve V4, a membrane filter, an O filter and a water tank 2 The device comprises an analyzer, a CO analyzer, an automatic drainage condenser, an analyzer cabinet and a preposed pretreatment cabinet, wherein a connector is arranged on the preposed pretreatment cabinet, a steam pipe is connected with an inlet of a steam jet pump, a straight-through sampling probe is connected with an air inlet of the steam jet pump, an outlet of the steam jet pump is connected with an inlet of a sample gas, the inlet of the sample gas is connected with sample gas ball valves V1 and V2, outlets of the sample gas ball valves V1 and V2 are connected with an inlet of sample gas of a washing tank, a porous flow equalizing plate is arranged in the lower middle part of the washing tank, a nozzle ejector is arranged in the middle part of the washing tank, a cooling water pipe is connected with a shower spray head and a nozzle ejector water inlet pipe in the washing tank, an overflow pipe and an exhaust pipe are connected on the side wall of the washing tank, a blowdown cut-off valve is arranged at the bottom of the washing tank, a steam inlet of the preposed pretreatment cabinet is connected with a pneumatic switching ball valve MV01, the outlet of the pneumatic switching ball valve MV01 is respectively connected with pneumatic switching ball valves MV11 and MV21, and the pneumatic switching ball valve MV11 and the pneumatic switching ball valve MV21 are connected with the pneumatic switching ball valve MV01The ball changing valves MV11 and MV21 are respectively communicated with a sample gas outlet of a water washing tank, the sample gas outlet of the water washing tank is connected with a suction port of a suction pump, the sample gas outlet of the suction pump is connected with a sample gas inlet of a vortex sample gas condenser, the sample gas outlet of the vortex sample gas condenser is connected with an inlet of a solenoid valve V4, the outlet of the solenoid valve V4 is connected with an inlet of a membrane filter, the outlets of the membrane filter are respectively connected with sample gas inlets of measurement/verification three-way valves V8 and V9, and the sample gas outlets of the measurement/verification three-way valves V8 and V9 are respectively connected with inlets of flow meters FL1 and FL 2; sample gas outlet and O of the flow meter FL1 2 The sample gas inlet of the analyzer is connected, and the sample gas outlet of the flow meter FL2 is connected with the sample gas inlet of the CO analyzer.
Preferably, the surface of the nozzle ejector is uniformly distributed with injection jet holes.
Preferably, the membrane filter humidity alarm interlock can control the solenoid valve V4 to cut off sample gas to flow meters FL1 and FL 2.
Preferably, the compressed air inlet is connected with a coolant inlet of the vortex sample gas condenser through a pneumatic regulating valve, the coolant of the vortex sample gas condenser is emptied through an outlet, a condensate water outlet of the vortex sample gas condenser is connected with an inlet of an automatic condenser, and an outlet of the automatic condenser is connected with a condensate water discharge port.
Preferably, the analyzer cabinet is provided with 7 connectors, and the right side of the analyzer cabinet is provided with a zero-point standard gas access port and an O port 2 The analyzer comprises a standard gas inlet, a CO standard gas inlet, a compressed air inlet and a condensate water discharge port, wherein the upper part of the analyzer cabinet is provided with a sample gas inlet and a tail gas emptying pipe connector.
Preferably, the thermometer of the vortex sample gas condenser is kept at 1-5 ℃, when the temperature deviates from the range, the air inflow of the vortex sample gas condenser is adjusted, so that the cooling temperature of the vortex sample gas condenser meets the requirement, and the condensed liquid of the vortex sample gas condenser is discharged through the automatic condenser discharge device.
Compared with the prior art, the invention has the following advantages:
1. the pre-pretreatment device is arranged at a sampling point in situ, so that the long-distance sample gas transmission between the sampling probe and the analysis cabinet is saved, and the load of the sample gas treatment system is reduced.
2. The sampling probe adopts a mode of easily maintained straight-through sampling tube and metal mesh filter, and the filter has high penetration rate and is convenient to clean.
3. The functional structure of the water washing tank is perfected, the problem of quality is solved in the design stage, the contact time and the contact area of the washing water and the sample gas are increased by a technical method of arranging a porous flow equalizing plate, a nozzle jet device and a shower spray header in the water washing tank, so that the washing water and the sample gas are fully mixed, the deep washing of the converter gas is realized, and the problem of gas path blockage caused by high dust and high humidity (water content) is solved.
4. Two sets of water washing tanks are arranged in the front-end pretreatment cabinet, namely, when one set of water washing tanks carries out gas washing analysis work, the other set of water washing tanks starts back flushing cleaning work, and the pretreatment and back flushing cleaning of the two sets of water washing tanks are alternately carried out, so that the operating efficiency of the system is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1-gas pipeline, 2-straight-through sampling probe, 3-metal net filter, 4-steam pipe, 5-steam jet pump, 6-sampling pipe phi 10X 1 (metal pipe), 7-pneumatic switching ball valve MV01, 8-pneumatic switching ball valve MV11, MV21, 9-exhaust pipe, 10-overflow pipe, 11-shower spray header, 12-water washing tank CU11, CU21, 13-nozzle ejector, 14-porous flow equalizing plate, 15-washing water throttle valve NV11, NV21, 16-blowdown cut-off valve, 17-sample gas inlet, 18-pre-pretreatment cabinet, 19-cooling water pipe, 20-analyzer cabinet, 21-air pump, 22-vortex sample gas condenser, 23-electromagnetic valve V4, 24-membrane filter and 25-O. 2 Three-way valve V8,26-CO measuring/checking valve V9, 27-flowmeter FL1, 28-flowmeter FL2, 29-O 2 Analyzer, 30-CO Analyzer, 31-automatic exhaust condenser, 32-pneumatic regulating valve PV1, 33-zero gas inlet, 34-O 2 A standard gas inlet, a 35-CO standard gas inlet, a 36-compressed air inlet, a 37-five-way switching valve, a 38-condensed water discharge port, a 39-tail gas emptying pipe and a 40-sample gas inlet.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.
As shown in figure 1, the on-line analysis sample gas treatment system for converter gas comprises a gas pipeline 1, a straight-through sampling probe 2, a metal mesh pressing filter 3, a steam jet pump 5, a pneumatic switching ball valve MV01, pneumatic switching ball valves MV11 and MV21, a shower spray header 11, a water washing tank 12, a nozzle jet device 13, a porous flow equalizing plate 14, an air suction pump 21, a vortex sample gas condenser 22, an electromagnetic valve V4, a membrane filter 24, an O2 analyzer 29, a CO analyzer 3, an automatic condenser 31, an analyzer cabinet 20 and a front pretreatment cabinet 18, wherein a connecting port is formed on the front pretreatment cabinet 18, a steam pipe 4 is connected with an inlet of the steam jet pump 5, the straight-through sampling probe 2 is connected with an air suction port of the steam jet pump 5, an outlet of the steam jet pump 5 is connected with a sample gas inlet 17, the sample gas inlet 17 is connected with sample gas ball valves V1 and V2, a sample gas ball valve V1, a sample gas inlet 2, a sample gas inlet is connected with a sample ball valve V2, a sample gas inlet 2, a sample gas inlet is connected with a sample gas outlet, a sample gas inlet 9, a sample gas inlet is connected with a sample gas outlet connected with a sample gas inlet connected with a sample tank connected with a, The outlet of V2 is connected with the sample gas inlet of a washing tank 12, a porous flow equalizing plate 14 is arranged in the middle lower part of the washing tank 12, a nozzle ejector 13 is arranged in the middle of the washing tank 12, a cooling water pipe 19 is connected with a shower spray header 11 and a water inlet pipe of the nozzle ejector 13 in the washing tank, an overflow pipe 10 and an exhaust pipe 9 are connected on the side wall of the washing tank 12, a blowdown cut-off valve 16 is arranged at the bottom of the washing tank 12, a steam inlet of a front-mounted pretreatment cabinet 18 is connected with a pneumatic switching ball valve MV01, the outlet of the pneumatic switching ball valve MV01 is respectively connected with a pneumatic switching ball valve MV11 and an MV21, pneumatic switching ball valves MV11 and MV21 are respectively communicated with the sample gas outlet of the washing tank 12, the sample gas outlet of the washing tank 12 is connected with the air suction port of an air suction pump 21, the sample gas outlet of an air suction pump 21 is connected with the sample gas inlet of a vortex sample gas condenser 22, the sample gas outlet of the vortex gas condenser 22 is connected with the inlet of an electromagnetic valve 4, the outlet of the electromagnetic valve V4 is connected with the inlet of the membrane filter 24, the outlet of the membrane filter 24 is respectively connected with the sample gas inlets of the measurement/verification three-way valves V8 and V9, and the sample gas outlets of the measurement/verification three-way valves V8 and V9 are respectively connected with the inlets of the flow meters FL1 and FL 2; the sample gas outlet of flow meter FL1 is connected to the sample gas inlet of O2 analyzer 29, and the sample gas outlet of flow meter FL2 is connected to the sample gas inlet of CO analyzer 30.
And injection jet holes are uniformly distributed on the surface of the nozzle ejector 13, and the converter gas is cleaned by using cooling water.
The humidity alarm interlock of the membrane filter 24 can control the electromagnetic valve V4 to cut off the sample gas entering the flow meters FL1 and FL2, the transmission of liquid water to the later stage can be thoroughly blocked, and the analyzer is protected most reliably.
The compressed air inlet 36 is connected with a coolant inlet of the vortex sample gas condenser 22 through the pneumatic adjusting valve 32, the coolant of the vortex sample gas condenser 22 is exhausted through the outlet, a condensed water outlet of the vortex sample gas condenser 22 is connected with an inlet of the automatic condenser 31, and an outlet of the automatic condenser 31 is connected with a condensed water discharge port 38.
The analyzer cabinet 20 is provided with 7 connecting ports, and the right side of the analyzer cabinet is provided with a zero standard gas inlet 33, an O2 standard gas inlet 34, a CO standard gas inlet 35, a compressed air inlet 36 and a condensed water discharge port 38; the upper part is provided with a sample gas inlet 40 and a tail gas exhaust pipe connector 39.
The temperature of the vortex sample gas condenser 22 should be maintained within a range of 1 to 5 ℃. If the deviation is too large, the air inflow of the vortex sample gas condenser 22 is properly adjusted so that the cooling temperature of the vortex sample gas condenser 22 meets the requirement. The condensed liquid of the swirling sample gas condenser 22 is discharged through the automatic discharge condenser 31.
The working process of the invention is as follows:
the system consists of two paths of steam samplers AE11 and AE21, a front pretreatment cabinet 18, a pretreatment system and an analyzer which are arranged inside an analyzer cabinet 20; sampling and measuring one of the two paths of sample gases, and purging and back-up sampling the other path of sample gases; sampling, measuring and purging two paths of sample gas by two paths of pre-processing systems in the pre-processing cabinet 18 and corresponding pneumatic switching ball valves; the cooling water pipe 19 enters the shower spray header 11 and the nozzle jet device 13 inside the washing tank 12 through the washing water throttle valves NV11 and NV21, and the cooling water is sprayed and jet-washed to obtain the sample gas entering the washing tank. To ensure the safety of the analyzer; the above flow path switching and safety shut-off are accomplished by a PLC installed inside the explosion-proof tank. The first way of sample gas is taken out from the process pipeline by a steam sampler AE11, the mixture of steam and sample gas reaches the sample gas inlet of the pre-pretreatment system through a heat-preservation heat tracing sampling pipeline, the mixture of the sample gas and the steam is subjected to gas-liquid separation in the pre-pretreatment system, the water washing tank is provided with a porous flow equalizing plate, the entering sample gas is dispersed into fine bubbles, the contact area of the washing water and the sample gas is increased, the two are fully mixed, and when the ascending sample gas meets with cooling water sprayed from top to bottom, deep washing is realized. The condensed liquid and the washing water are discharged through an overflow pipe, the gas is pumped out by a suction pump 21 in the analyzer cabinet, enters the analyzer cabinet 20 through a sample gas pipeline after passing through a pneumatic switching ball valve MV11 at the upper part of the gas, is sent into a vortex sample gas condenser 22 for condensation and dehumidification, the condensed and dehumidified liquid passes through an automatic condenser 31 and then is discharged out of the analyzer cabinet, the condensed and dehumidified sample gas enters a membrane filter 24 for filtration and then is divided into two paths through a 'measurement/verification' three-way valve, one path enters an O2 analyzer for analysis and measurement after flow adjustment through FL1, the other path enters a CO analyzer for analysis and measurement after passing through a flowmeter FL2, meanwhile, a pretreatment system is arranged in front of the other path, the steam passes through a pneumatic switching ball valve MV01 and MV21 at a steam inlet of the front pretreatment cabinet to purge a water washing and condensation tank CU21, and the purge is prepared by pre-fetching the flow path through switching MV01 and MV21 after the purge, the sample gas is exhausted from the exhaust outlet through MV21 and MV 01. And after the first flow path measurement is finished, the pneumatic switching valve acts, the second flow path sample gas enters the analysis cabinet for measurement, and the first flow path is subjected to blowing and sweeping, and then pre-sampling preparation is carried out.
The method combines various components with different functions in a water washing tank by changing a traditional sampling pretreatment system and optimizing design, so that continuous and efficient dynamic water washing is realized, the problem of gas circuit blockage caused by dust pollutants is solved, and the high-efficiency dust removal and the high-efficiency water removal of sample gas ensure the high reliability, stability, coordination and safe operation of the converter gas recovery on-line analyzer.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that other equivalent variations and modifications can be made by those skilled in the art in light of the teachings of the present invention/inventions, and all such modifications and improvements can be made to the invention/objects, and are to be considered within the scope of the invention/inventions.

Claims (6)

1. A converter gas on-line analysis sample gas treatment system comprises a gas pipeline, a straight-through sampling probe, a metal net pressing filter, a steam jet pump, a pneumatic switching ball valve MV01, pneumatic switching ball valves MV11 and MV21, a bath spray header, a washing tank 1, a nozzle ejector, a porous flow equalizing plate, an air pump, a vortex sample gas condenser, an electromagnetic valve V4, a membrane filter, an O filter and a water tank 2 Analyzer, CO analysis appearance, automatic arrange condenser, analysis appearance rack and leading preliminary treatment cabinet, its characterized in that: the device is characterized in that a connecting port is formed in the front-mounted pretreatment cabinet (18), a steam pipe (4) is connected with an inlet of a steam jet pump (5), a through-type sampling probe (2) is connected with an air suction port of the steam jet pump (5), an outlet of the steam jet pump (5) is connected with a sample air inlet (17), the sample air inlet (17) is connected with a sample air ball valve V1 and a sample air valve V2, outlets of the sample air ball valves V1 and V2 are connected with a sample air inlet of a washing tank (12), a porous flow equalizing plate (14) is arranged in the middle lower part of the washing tank (12), a nozzle ejector (13) is arranged in the middle of the washing tank (12), a cooling water pipe (19) is connected with a bath spray header (11) and a nozzle inlet pipe (13) in the washing tank, an overflow pipe (10) and an exhaust pipe (9) are connected to the side wall of the washing tank (12), and a blowdown cut-off valve (16) is arranged at the bottom of the washing tank (12), the steam inlet of leading preliminary treatment cabinet (18) is connected with pneumatic switching ball valve MV01 (7), the export of pneumatic switching ball valve MV01 (7) is connected with pneumatic switching ball valve MV11, MV21 respectively, pneumatic switching ball valve MV11, MV21 are linked together with the sample gas export of washing jar (12) respectively, the sample gas export of washing jar (12) is connected with the induction port of aspiration pump (21), the sample gas export of aspiration pump (21) is connected with the sample gas import of vortex sample gas condenser (22), the sample gas export of vortex sample gas condenser (22) is connected with the import of solenoid valve V4, the export of solenoid valve V4 is connected with the import of membrane filter (24), the membraneThe outlets of the filters (24) are respectively connected with sample gas inlets of measurement/verification three-way valves V8 and V9, and the sample gas outlets of the measurement/verification three-way valves V8 and V9 are respectively connected with inlets of flow meters FL1 and FL 2; sample gas outlet and O of the flow meter FL1 2 The sample gas inlet of the analyzer (29) is connected, and the sample gas outlet of the flow meter FL2 is connected with the sample gas inlet of the CO analyzer (30).
2. The on-line analysis sample gas processing system for converter gas according to claim 1, characterized in that: and the surface of the nozzle ejector (13) is uniformly distributed with injection jet holes.
3. The on-line analysis sample gas processing system for converter gas according to claim 1, characterized in that: the humidity alarm interlock of the membrane filter (24) may control the solenoid valve V4 to shut off sample gas to flow meters FL1 and FL 2.
4. The on-line analysis sample gas processing system for converter gas according to claim 1, characterized in that: the compressed air inlet (36) is connected with a coolant inlet of the vortex sample gas condenser (22) through a pneumatic regulating valve (32), the coolant of the vortex sample gas condenser (22) is exhausted through an outlet, a condensed water outlet of the vortex sample gas condenser (22) is connected with an inlet of an automatic condenser (31), and an outlet of the automatic condenser (31) is connected with a condensed water discharge port (38).
5. The on-line analysis sample gas processing system for converter gas according to claim 1, characterized in that: the analyzer cabinet (20) is provided with 7 connecting ports, and the right side of the analyzer cabinet (20) is provided with a zero standard gas access port (33) and an O 2 The analyzer comprises a standard gas inlet (34), a CO standard gas inlet (35), a compressed air inlet (36) and a condensed water discharge port (38), wherein a sample gas inlet (40) and a tail gas emptying pipe connector (39) are arranged on the upper portion of the analyzer cabinet (20).
6. The on-line analysis sample gas processing system for converter gas according to claim 1, characterized in that: the thermometer of the vortex sample gas condenser (22) is kept at 1-5 ℃, when the temperature deviates from the range, the air inflow of the vortex sample gas condenser (22) is adjusted, so that the cooling temperature of the vortex sample gas condenser (22) meets the requirement, and the condensed liquid of the vortex sample gas condenser (22) is discharged through the automatic discharge condenser (31).
CN202210934891.2A 2022-08-04 2022-08-04 Converter coal gas on-line analysis sample gas processing system Pending CN115127899A (en)

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Application Number Priority Date Filing Date Title
CN202210934891.2A CN115127899A (en) 2022-08-04 2022-08-04 Converter coal gas on-line analysis sample gas processing system

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Application Number Priority Date Filing Date Title
CN202210934891.2A CN115127899A (en) 2022-08-04 2022-08-04 Converter coal gas on-line analysis sample gas processing system

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CN115127899A true CN115127899A (en) 2022-09-30

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