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CN-224216612-U - Online detection analyzer for flue gas oxygen concentration of garbage incinerator and garbage incinerator

CN224216612UCN 224216612 UCN224216612 UCN 224216612UCN-224216612-U

Abstract

The utility model discloses an online detection analyzer for the oxygen concentration of flue gas of a garbage incinerator and the garbage incinerator, wherein the analyzer comprises a filtering unit, a cooling unit, a gas-water separation unit, a heating unit, an oxygen concentration detection unit and an online correction unit, the filtering unit, the cooling unit, the gas-water separation unit, the heating unit and the oxygen concentration detection unit are sequentially connected through pipelines, the online correction unit comprises a plurality of standard oxygen tanks, oxygen with different concentrations is stored in each standard oxygen tank, and each standard oxygen tank is connected with the oxygen concentration detection unit. The utility model has the advantages of accurate and reliable oxygen concentration detection, etc.

Inventors

  • DENG SHI
  • LIU JUNHAN
  • WANG XUN

Assignees

  • 浦湘生物能源股份有限公司

Dates

Publication Date
20260508
Application Date
20250421

Claims (8)

  1. 1. The online detection analyzer for the oxygen concentration of the flue gas of the garbage incinerator is characterized by comprising a filtering unit (1), a cooling unit (2), a gas-water separation unit (3), a heating unit (4), an oxygen concentration detection unit (5) and an online correction unit (6), wherein the filtering unit (1), the cooling unit (2), the gas-water separation unit (3), the heating unit (4) and the oxygen concentration detection unit (5) are sequentially connected through pipelines, the online correction unit (6) comprises a plurality of standard oxygen tanks (601), oxygen with different concentrations is stored in each standard oxygen tank (601), and each standard oxygen tank (601) is connected with the oxygen concentration detection unit (5).
  2. 2. The online detection analyzer for the oxygen concentration of the flue gas of the garbage incinerator according to claim 1 is characterized by further comprising an air passage back-flushing unit (7), wherein the air passage back-flushing unit (7) comprises an air compressor (701) and a back-flushing electromagnetic valve (702), the output end of the air compressor (701) is connected with the output end of the filtering unit (1) through a pipeline, and the back-flushing electromagnetic valve (702) is arranged on a corresponding pipeline.
  3. 3. The on-line detection analyzer for the oxygen concentration of the flue gas of the garbage incinerator according to claim 1 or 2, wherein the filtering unit (1) is a flue gas filter, the cooling unit (2) is a cooler, and the heating unit (4) is a heater.
  4. 4. The on-line detection analyzer for the oxygen concentration of the flue gas of the garbage incinerator according to claim 1 or 2, wherein the gas-water separation unit (3) comprises a gas-water separation tank (301), a peristaltic pump (302) and a three-way valve (303), the peristaltic pump (302) is communicated with the bottom of the gas-water separation tank (301) through a pipeline, and the three-way valve (303) is positioned on a corresponding pipeline.
  5. 5. The on-line detection analyzer for the oxygen concentration of the flue gas of the garbage incinerator according to claim 1 or 2, wherein the oxygen concentration detection unit (5) comprises a plurality of oxygen concentration sensors (501) and a plurality of air pumps (502), each oxygen concentration sensor (501) corresponds to each air pump (502) one by one, and each oxygen concentration sensor (501) is connected with the heating unit (4) through the corresponding air pump (502).
  6. 6. A waste incinerator comprising a boiler (9), characterized in that the boiler (9) is provided with the waste incinerator flue gas oxygen concentration on-line detection analyzer according to any one of claims 1-5.
  7. 7. The garbage incinerator according to claim 6, wherein a plurality of burners (14) are arranged on the boiler body of the boiler (9), one end of each burner (14) is connected with a fuel valve (13), and the other end of each burner (14) is communicated with a hearth of the boiler (9); A flue (10) is arranged at the tail part of the boiler (9), and a heat exchanger is arranged in the flue (10); An air valve (12) is arranged at the air inlet of the burner (14), the air valve (12) is connected with the outlet of the heat exchanger through a hot air pipe, the inlet of the heat exchanger is communicated with a blower (11) with an air suction inlet through a cold air pipe, and a bypass valve is arranged between the cold air pipe and the hot air pipe; The signal output end of the oxygen concentration detection unit (5) is connected with the acquisition signal input end of the controller (17), the control display end of the controller (17) is connected with the human-computer interface operation display (16), the output end of the controller (17) is connected with the control end of the speed regulator, and the other end of the speed regulator is connected with the blower (11).
  8. 8. A waste incinerator according to claim 7, characterized in that a temperature sensor is installed in the body of the boiler (9), which temperature sensor is connected to the fuel valve (13).

Description

Online detection analyzer for flue gas oxygen concentration of garbage incinerator and garbage incinerator Technical Field The utility model mainly relates to the technical field of garbage incineration, in particular to an on-line detection analyzer for the concentration of oxygen in flue gas of a garbage incinerator and the garbage incinerator. Background The current instrument for detecting the oxygen concentration on line is mainly a zirconia probe, and the percentage of the oxygen concentration in the flue gas and the oxygen concentration in the air is detected by utilizing the electrical oxygen characteristic of zirconia. The analyzer is suitable for detecting and checking the oxygen concentration of the flue gas of various industrial kilns, and has short response time and high measurement accuracy. Because zirconium oxide adopts metal platinum as an electrode, and the flue gas contains various dust, sulfide and other harmful gases, the platinum electrode of the zirconium oxide tube is easy to be blocked and poisoned. The service life of the common zirconia tube is shorter, and after a period of use, the measurement accuracy is reduced, the drift is larger, and the oxygen detection is inaccurate and even completely fails. In addition, in boiler scenes (such as garbage incinerators) mainly applied as zirconia probes, most boilers lack corresponding smoke component detection and automatic control technologies, air distribution and proportioning can only be operated by workers through experience, often proportioning is only manually controlled by a fuel valve according to the temperature required to be reached in the boiler, a fan of the boiler is not controlled at all, the boiler is only in a power frequency running state, the control is only in an open loop control, and the open loop is far from meeting the energy saving purpose in a increasingly complex combustion system. Disclosure of utility model Aiming at the technical problems existing in the prior art, the utility model provides an on-line detection analyzer for the oxygen concentration of the flue gas of the garbage incinerator and the garbage incinerator, which are accurate and reliable in detection. In order to solve the technical problems, the technical scheme provided by the utility model is as follows: The online detection analyzer for the oxygen concentration of the flue gas of the garbage incinerator comprises a filtering unit, a cooling unit, a gas-water separation unit, a heating unit, an oxygen concentration detection unit and an online correction unit, wherein the filtering unit, the cooling unit, the gas-water separation unit, the heating unit and the oxygen concentration detection unit are sequentially connected through pipelines, the online correction unit comprises a plurality of standard oxygen tanks, oxygen with different concentrations is stored in each standard oxygen tank, and each standard oxygen tank is connected with the oxygen concentration detection unit. As a further improvement of the above technical scheme: the air channel blowback unit comprises an air compressor and a blowback electromagnetic valve, the output end of the air compressor is connected with the output end of the filtering unit through a pipeline, and the blowback electromagnetic valve is arranged on the corresponding pipeline. The filter unit is a flue gas filter, the cooling unit is a cooler, and the heating unit is a heater. The gas-water separation unit comprises a gas-water separation tank, a peristaltic pump and a three-way valve, wherein the peristaltic pump is communicated with the bottom of the gas-water separation tank through a pipeline, and the three-way valve is positioned on the corresponding pipeline. The oxygen concentration detection unit comprises a plurality of oxygen concentration sensors and a plurality of air pumps, wherein each oxygen concentration sensor corresponds to each air pump one by one, and each oxygen concentration sensor is connected with the heating unit through the corresponding air pump. The garbage incinerator comprises a boiler, and the online detecting analyzer for the flue gas oxygen concentration of the garbage incinerator is arranged on the boiler. As a further improvement of the above technical scheme: The boiler body of the boiler is provided with a plurality of burners, one ends of the burners are connected with fuel valves, and the other ends of the burners are communicated with a hearth of the boiler; The tail part of the boiler is provided with a flue, and the heat exchanger is arranged in the flue; An air valve is arranged at the air inlet of the burner and is connected with the outlet of the heat exchanger through a hot air pipe, the inlet of the heat exchanger is communicated with a blower with an air suction inlet through a cold air pipe, and a bypass valve is arranged between the cold air pipe and the hot air pipe; The signal output end of the oxygen concentration detection unit is connected with the