CN219546915U - Coal gasifier with on-line detection function - Google Patents
Coal gasifier with on-line detection function Download PDFInfo
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- CN219546915U CN219546915U CN202320881998.5U CN202320881998U CN219546915U CN 219546915 U CN219546915 U CN 219546915U CN 202320881998 U CN202320881998 U CN 202320881998U CN 219546915 U CN219546915 U CN 219546915U
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Abstract
The utility model relates to the technical field of coal gasification furnaces, in particular to a coal gasification furnace with an online detection function, which comprises the following components: a gasifier shell; the top end of the gasification furnace shell is provided with a burner; a gasification chamber, a waste heat recovery chamber and a slag water chamber are arranged in the gasification furnace shell; the gasification furnace comprises a gasification furnace shell, wherein a gasification chamber is arranged in the gasification furnace shell, a first water-cooling wall is arranged around the gasification chamber, a first flowmeter and a first temperature sensor are arranged on an inlet side pipeline of the first water-cooling wall, the first water-cooling wall comprises a plurality of first water-cooling pipes which are communicated in parallel, and a second temperature sensor is arranged at the inlet and the outlet of at least 1/2 of the first water-cooling pipes; the waste heat recovery chamber is internally provided with a synthesis gas outlet and a radiation waste boiler, the radiation waste boiler comprises a plurality of groups of water cooling screens, a cooling water inlet of each water cooling screen is provided with a second flowmeter and a third temperature sensor, and a cooling water outlet of each water cooling screen is provided with a fourth temperature sensor. The structure of the utility model can detect the whole and local temperature conditions in real time.
Description
Technical Field
The utility model relates to the technical field of coal gasifiers, in particular to a coal gasifier with an online detection function.
Background
Coal gasification technology is the basis of modern coal chemical industry as an advanced technology for clean coal utilization, and through technical development and industrial application for many years, coal gasification basically forms three forms of a fixed bed, a fluidized bed and a gas flow bed. Among them, entrained flow becomes the mainstream of coal gasification technology because of advantages such as gasification efficiency is high, coal variety adaptability is strong what is friendly to the environment.
Aiming at the gasification process of the coal water slurry, the typical structure of the existing gasification furnace is as follows:
a coal gasification apparatus with a waste pan, comprising: the device comprises a gasification furnace, a gas washing tower, a steam drum, a coarse slag treatment device and a grey water treatment device, wherein the gasification furnace comprises a gasification chamber, a radiation waste boiler and a chilling chamber, the gasification furnace is provided with an inner shell and an outer shell sleeved outside the inner shell, the gasification chamber is arranged at the upper part of the inner shell, the gasification chamber is connected with the radiation waste boiler arranged at the middle part of the inner shell, and the radiation waste boiler is connected with the chilling chamber arranged at the lower part of the outer shell; the radiation waste boiler is connected with the steam drum through a boiler water inlet and a boiler water outlet respectively.
In the gas production process, the working condition of the water-cooled wall is monitored very necessarily, and no good solution exists at present.
Meanwhile, the accumulated ash and slag on the heating surface of the water-cooled wall of the coal gasification furnace seriously threatens the safe and economic operation of the blast furnace. The water-cooled wall dust deposit slagging can not only reduce the heat conduction capacity of a heating surface, but also lead to corrosion of the heating surface, weakening of the heat exchange capacity of the water-cooled wall, abnormal furnace shutdown of the coal gasifier and increase of maintenance cost of the coal gasifier, and the online measurement scheme for the dust deposit slagging mode is almost unavailable at present.
Disclosure of Invention
The utility model aims to overcome one or more of the prior art problems and provide a coal gasifier with an on-line detection function.
In order to achieve the above object, the present utility model provides a coal gasifier with an on-line detection function, comprising:
a gasifier shell;
the top end of the gasification furnace shell is provided with a burner;
a gasification chamber, a waste heat recovery chamber and a slag water chamber are arranged in the gasification furnace shell;
a first water-cooling wall is arranged in the gasifier shell, the first water-cooling wall surrounds the gasification chamber, a first flowmeter and a first temperature sensor are arranged on an inlet side pipeline of the first water-cooling wall, the first water-cooling wall comprises a plurality of first water-cooling pipes which are communicated in parallel, and at least 1/2 of the inlets and outlets of the first water-cooling pipes are provided with second temperature sensors;
the top of the waste heat recovery chamber is connected with the top of the gasification chamber, a synthesis gas outlet and a radiation waste boiler are arranged in the waste heat recovery chamber, the radiation waste boiler comprises a plurality of groups of water cooling screens, a second flowmeter and a third temperature sensor are arranged at a cooling water inlet of each water cooling screen, and a fourth temperature sensor is arranged at a cooling water outlet of each water cooling screen;
the bottom of gasifier casing contracts and forms the slag notch, the top of sediment hydroecium is connected with the bottom of waste heat recovery room, the bottom and the slag notch of sediment hydroecium are connected, be provided with fifth temperature sensor under the liquid level line of sediment hydroecium.
Preferably, the second temperature sensors arranged on each first water cooling pipe in the first water cooling wall are arranged at equal intervals, and the intervals are not more than 0.5m.
Preferably, the interval between the second temperature sensors arranged on each first water cooling pipe in the first water cooling wall gradually decreases along the flowing direction of the cooling water.
Preferably, the second temperature sensor is a thermocouple;
the thermocouple is connected to the thermocouple server by a wired manner.
Preferably, the thermocouple is arranged in the jacket, the measuring end of the thermocouple extends to the outer side of the jacket, and the jacket is in contact with the outer wall of the first water cooling pipe or penetrates into the first water cooling pipe.
Preferably, the length of the jacket extending into the inner wall of the first water cooling pipe is 2-5mm.
Preferably, the synthesis gas outlet is arranged in the middle of the side wall of the waste heat recovery chamber or at the top of the slag water chamber.
Preferably, the radiation waste boiler further comprises a second water-cooled wall, wherein a thermometer and a flowmeter are arranged at the inlet of the second water-cooled wall, and a thermometer is arranged at the outlet of the second water-cooled wall.
Preferably, the number of the second water-cooling walls is two, a third flowmeter and a sixth temperature sensor are arranged on the inlet side pipeline of each group of the second water-cooling walls, the second water-cooling walls comprise a plurality of second water-cooling pipes which are communicated in parallel, and at least 1/2 of seventh temperature sensors are arranged at the inlet and the outlet of the second water-cooling pipes.
Preferably, the number of the water-cooling screen groups is 8-12, and the water-cooling screen groups are uniformly distributed around the waste heat recovery chamber.
Based on the above, the utility model has the beneficial effects that:
1. according to the scheme, the plurality of temperature sensors are arranged on the water-cooled wall, so that the heat absorption and the heat distribution of the water-cooled wall are detected on line, and the targeted water-cooled wall sampling points can be obtained, and the temperature distribution of the inner wall of the hearth is indirectly obtained;
2. according to the scheme provided by the utility model, a plurality of temperature sensors are arranged on each cooling pipe of the water-cooled wall at intervals, so that the fault tolerance is improved, the installation and maintenance costs are reduced, and the integral detection is not influenced even if part of the temperature sensors are offline;
3. according to the scheme provided by the utility model, the temperature distribution to the gasification furnace is indirectly achieved through the temperature condition detected by the temperature sensor, so that the scaling condition in the pipeline in the water wall can be judged.
Drawings
Fig. 1 schematically shows a schematic structure of a coal gasifier with an on-line detection function according to an embodiment of the present utility model;
FIGS. 2 and 3 schematically show a second temperature sensor according to an embodiment of the present utility model;
FIG. 4 schematically illustrates a schematic structure of a plurality of sets of water walls according to an embodiment of the present utility model;
FIG. 5 schematically illustrates a jacket extending into a water-cooled tube in accordance with one embodiment of the present utility model.
Detailed Description
The present disclosure will now be discussed with reference to exemplary embodiments, it being understood that the embodiments discussed are merely for the purpose of enabling those of ordinary skill in the art to better understand and thus practice the present disclosure and do not imply any limitation to the scope of the present disclosure.
As used herein, the term "comprising" and variants thereof are to be interpreted as meaning "including but not limited to" open-ended terms. The terms "based on" and "based at least in part on" are to be construed as "at least one embodiment.
Fig. 1 schematically illustrates a coal gasifier with an on-line detection function according to an embodiment of the present utility model, and fig. 2 and 3 schematically illustrate a mode of installation of a temperature sensor according to the present utility model, as shown in fig. 1, 2 and 3, the coal gasifier with an on-line detection function according to the present utility model includes:
a gasifier shell 10;
the top end of the gasifier shell 10 is provided with a burner 20;
the gasification furnace shell 10 is internally provided with a gasification chamber 30, a waste heat recovery chamber 40 and a slag water chamber 50;
the gasification furnace comprises a gasification furnace shell 10, wherein a first water-cooling wall 301 is arranged in the gasification furnace shell 10, the first water-cooling wall 301 is arranged around a gasification chamber 30, a first flowmeter 302 and a first temperature sensor 303 are arranged on an inlet side pipeline of the first water-cooling wall 301, the first water-cooling wall 301 comprises a plurality of first water-cooling pipes 3011 which are communicated in parallel, and at least 1/2 of inlets and outlets of the first water-cooling pipes 3011 are provided with second temperature sensors 3012;
the top of the waste heat recovery chamber 40 is connected with the top of the gasification chamber 30, a synthesizer outlet 401 and a radiation waste pot 402 are arranged in the waste heat recovery chamber 40, the radiation waste pot 402 comprises a plurality of groups of water cooling screens 4021, a second flowmeter 4022 and a third temperature sensor 4023 are arranged at a cooling water inlet of the water cooling screens 4021, and a fourth temperature sensor 4024 is arranged at a cooling water outlet of the water cooling screens 4021;
the bottom of the gasifier shell 10 is contracted to form a slag hole 101, the top of the slag water chamber 50 is connected with the bottom of the waste heat recovery chamber 40, the bottom of the slag water chamber 50 is connected with the slag hole 101, and a fifth temperature sensor 501 is arranged below the liquid level line of the slag water chamber 50.
Specifically, the coal gasifier is in a setting mode of a Jinhua furnace, and integrally comprises a gasifier shell 10, a burner nozzle 20, a gasification chamber 30, a waste heat recovery chamber 40 and a slag water chamber 50, when coal water slurry is fed, the coal water slurry is sprayed out from the burner nozzle 20 positioned at the top of the gasifier shell 10, gasification is carried out in the gasification chamber 30, the coal water slurry forms slag and synthetic gas, the slag and the synthetic gas are subjected to heat exchange by a first water cooling wall 301 in the gasification chamber 30, then enter the waste heat recovery chamber 40 at the bottom of the gasification chamber 30, the waste heat is subjected to heat exchange again by a radiation waste boiler 402 in the waste heat recovery chamber, the generated synthetic gas is discharged through a synthetic gas outlet 401, waste slag enters the slag water chamber 50, energy is recovered through a chilling process, and the waste slag water is discharged from a slag outlet 101.
The first water-cooling wall 301 is arranged around the gasification chamber 30, water flows through the first water-cooling wall 301 to perform heat exchange operation on substances in the gasification chamber 30, and the first flowmeter 302 and the first temperature sensor 303 are arranged on the inlet side pipeline of the first water-cooling wall, so that the flow rate and the temperature of the water flow can be detected;
the first water-cooled wall 301 comprises a plurality of first water-cooled pipes 3011 which are communicated in parallel, a plurality of second temperature sensors 3012 are arranged on the first water-cooled pipes 3011, and the temperature of the first water-cooled pipes 3011 at each position is detected by the second temperature sensors 3012, so that the temperature of water flow in the first water-cooled pipes is detected, and the temperature distribution of the gasification furnace is indirectly obtained.
Meanwhile, by acquiring the flow direction information of the first flowmeter 302 on the inlet side pipeline of the first water-cooled wall 301 and combining the temperatures of the first temperature sensor 303 and the second temperature sensor 3011, a reference value of total heat can be obtained, and can be used for indicating whether the gasifier is normal in the working process.
By providing the fifth temperature sensor 501 below the liquid level line of the slag water chamber 50, the temperature of the liquid in the slag water chamber 50 after the gasified solid product is cooled can be obtained, and when the temperature of the cooling water is constant, the change of the temperature can provide a reference value of the actual heat exchange amount.
Further, taking the second temperature sensor 3012 as an example, the second temperature sensor 3012 of the present utility model includes various embodiments, as shown in fig. 2, in the first embodiment:
the second temperature sensors 3012 provided on each of the first water-cooled tubes 3011 in the first water-cooled wall 301 are equally spaced apart and the spacing is no greater than 0.5m.
So set up, because the cooling water in the first water-cooled tube 3011 is constantly carrying out the heat transfer, and the temperature continuously risees, equidistant a plurality of second temperature sensor 3012 of setting on each with first water-cooled tube 3011 can fully detect the heat transfer condition of the cooling water of different positions in the first water-cooled tube 3011 to also can fully detect the formation of scale deposit on the first water-cooled tube 3011.
Further, as shown in fig. 3, in the second embodiment:
the interval between the second temperature sensors 3012 provided on each of the first water-cooled tubes 3011 in the first water-cooled wall 301 gradually decreases in the flow direction of the cooling water.
So set up, because the cooling water temperature in the first water-cooled tube 3011 is constantly rising, consequently, can set up the interval that sets up of second temperature sensor 3012 to follow the flow direction and reduce gradually for second temperature sensor 3012 intensive setting gradually, the temperature rise frequency of the cooling water in the first water-cooled tube 3011 of more matching can carry out accurate detection to the temperature in the gasifier, simultaneously, when extremely individual second temperature sensor 3012 is malfunctioning, also can not influence holistic detection, improved the fault-tolerant rate.
Further, in the application scenario of the utility model, the water-coal-slurry is pumped into the main inlet at the top of the furnace body and into the furnace chamber by the high-pressure coal-slurry pump, and a part of external oxygen, for example 80% -100%, enters the furnace chamber through the main process burner, and the other part enters the furnace chamber through the secondary oxygen nozzle. The coal slurry, oxygen, water and the like undergo complex oxidation-reduction reaction at high temperature of 1500 ℃ and pressure of normal pressure to 1.6MPa in the gasification chamber 30 to generate CO and H 2 、CO 2 The coal slurry is melted at high temperature to produce ash as the main component of the raw synthesis gas.
In the high temperature raw and ash waste heat recovery chamber 40 of the gasification chamber 30, at the same time, the ash and the heat carried by the raw syngas are subjected to steam generation by the radiant waste boiler 402, and black water and slag are obtained in the cold water finally entering the slag water chamber, and the syngas is discharged after entering the bottom.
For the first water-cooled wall 301, it is necessary to ensure that the area of the first water-cooled wall 301 surrounding the gasification chamber 30 is not less than 30% of the entire area of the gasification chamber 30.
Further, the first water-cooling wall 301 may be a membrane water-cooling wall, which is a water-cooling wall formed by splicing and welding flat steel and pipes to form an airtight pipe panel, which can ensure that a hearth has good tightness, and can obviously reduce the air leakage coefficient of the hearth for a negative pressure boiler and improve the combustion working condition in the furnace. It can increase the effective radiation heating area, so saving steel consumption.
Further, to increase the heat exchange capacity of the first water wall 301, the first water wall 301 may include a main membrane wall formed by a row of tubes and fins disposed between the tubes, where one or more rows of tubes are added on the heated surface side of the main membrane wall, and the tubes of the one or more rows of tubes are disposed corresponding to the tubes of the main membrane wall, and are connected between the corresponding tubes by the fins. The arrangement mode is adopted when the gasification furnace is arranged for the refractory high-melting high-ash coal in early stage. The high-strength membrane water-cooling wall is characterized in that one or more rows of tubes are added on the heated surface side of the main membrane water-cooling wall, the main membrane water-cooling wall is composed of tubes and fins arranged among the tubes, the added one or more rows of tubes are correspondingly arranged with the tubes of the main membrane water-cooling wall, the corresponding tubes are connected by the fins and are integrated with the membrane water-cooling wall, and the tubes and the fins can be connected by welding.
Fig. 4 schematically illustrates a structure of a plurality of sets of water-cooling walls according to an embodiment of the present utility model, and as shown in fig. 4, taking the first water-cooling wall 301 as an example, in a manner of disposing the first water-cooling wall 301, multi-stage partition cooling may be adopted, for example, two partitions are disposed for the gasification chamber 30, and each partition includes an independent water-cooling wall. Then an array of a plurality of temperature sensors may be provided at this time, with water inlet and outlet temperature sensors being provided for each array of temperature sensors, wherein the water inlet temperature sensors are provided in the inlet and outlet lines for the water wall cooling water.
The corresponding setting interval can be determined according to the coal to be gasified, if the coal quality is better (the ash content is lower and the melting point is lower), the larger interval can be set, otherwise, the setting mode of denser temperature sensors is needed in consideration of the need of providing higher gasification temperature.
Further, the second temperature sensor 3012 is a thermocouple;
the thermocouple is connected to the thermocouple server in a limited manner.
The thermocouple is disposed within the jacket 30121 with the measurement end of the thermocouple extending outside of the jacket 30121, with the jacket 30121 contacting the outer wall of the first water cooled tube 3011 or extending deep into the interior of the first water cooled tube 3011.
The length of the jacket 30121 extending into the inner wall of the first water cooled tube 3011 is 2-5mm.
So set up, the thermocouple end can be equipped with the data line and link to each other with data acquisition and processing system to can gather and store the temperature data that the thermocouple detected, set up the thermocouple in pressing from both sides jacket 30121, can protect it, prevent that the thermocouple from taking place deformation, through this setting up mode, can satisfy measuring cost low, predict that accuracy is high, the easy requirement of installation maintenance.
Fig. 5 schematically illustrates a jacket extending into a water-cooled tube according to an embodiment of the present utility model, and as illustrated in fig. 5, there are two connection modes of the jacket 30121 to the first water-cooled tube 3011, in which, as illustrated in the upper half of fig. 5, the jacket 30121 is in contact with the outer wall of the first water-cooled tube 3011 to perform temperature measurement, and although temperature measurement may be performed, accuracy of measurement may not be ensured because the measurement end of the thermocouple is not in direct contact with cooling water.
In a second embodiment, shown in the lower part of fig. 5, the jacket 30121 extends into the first water-cooled tube 3011, the measuring end of the thermocouple can be directly contacted with the cooling water to achieve more accurate measurement, and the extending length of the jacket 30121 is limited to a range of 2-5mm.
In practical experimental data, when the extending length of the jacket 30121 is 15mm, temperature measurement with good precision can be achieved, but the mode can cause deposition of scale, cause blockage and influence cooling water flow, and when the extending length is 2-5mm, the deposition degree of the scale can be effectively reduced, and meanwhile, good working condition detection reliability can be achieved.
Further, the synthesis gas outlet 401 is provided at the middle of the sidewall of the waste heat recovery chamber 40 or at the top of the slag water chamber 50.
The setting position of the synthesis gas outlet 401 may be set in the middle of the side wall of the waste heat recovery chamber 40 and at the top of the slag water chamber 50, and also may be set in the upper part of the waste heat recovery chamber 40, and when the setting positions of the synthesis gas outlet 401 are different, the outlet gas temperature changes, so that the obtained synthesis gas temperature may be used to indicate whether the same gasifier operation process is normal.
Further, as shown in fig. 4, the radiant waste boiler 402 further includes a second water wall 4025, an inlet of the second water wall 4025 is provided with a sixth temperature sensor 4026 and a third flowmeter 4027, and an outlet of the second water wall 4025 is provided with a seventh temperature sensor 4028.
The second water walls 4025 are two groups, and each group of second water wall 4025 is provided with a third flowmeter 4027 and a sixth temperature sensor 4026 in an inlet side pipeline, and a seventh temperature sensor 4027 in an outlet side pipeline.
The second water wall 4025 includes a plurality of second water-cooled tubes connected in parallel, and at least 1/2 of the inlets and outlets of the second water-cooled tubes are provided with eighth temperature sensors.
The number of sets of water-cooled screens 4021 is 8-12 and is evenly distributed around the waste heat recovery chamber 40.
Specifically, the radiation waste boiler 402 may be a water cooling screen 4021, set 8-12 groups, or may be a second water cooling wall 4025, and one or two groups may be used to achieve the heat exchange effect of the synthesis gas, and meanwhile, the second flowmeter 4022, the third temperature sensor 4023, the fourth temperature sensor 4024, the third flowmeter 4027, the sixth temperature sensor 4026, and the seventh temperature sensor 4027 are set, so that the flow of the cooling water, the temperatures at the inlet and the outlet, and the overall heat exchange information can be obtained.
Meanwhile, the eighth temperature sensor arranged on the second water-cooled tube can acquire specific temperature distribution at different positions in the tube.
The second water wall 2025 has the same structure as the first water wall 301;
the eighth temperature sensor may be provided at equal intervals or at unequal intervals, as in the second temperature sensor 3012.
In summary, the temperature sensors and the flow meters are arranged at the inlet and the outlet of the water-cooling wall or the water-cooling screen in the gasification chamber 30 and the waste heat recovery chamber 40, so that the actual heat exchange effect of the water-cooling wall or the water-cooling screen can be obtained, the heat exchange capacity of different areas and positions of the water-cooling wall or the water-cooling screen can be obtained by arranging a plurality of temperature sensors on each water-cooling pipe in the water-cooling wall or the water-cooling screen, the temperature distribution of the inner wall of the hearth can be indirectly obtained, the better monitoring effect on the gasification furnace is realized, meanwhile, the scaling condition in the water-cooling pipes can be well judged according to the temperature detection condition, and the normal operation of the gasification furnace is effectively ensured.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the apparatus and device described above may refer to corresponding procedures in the foregoing method embodiments, which are not described herein again.
The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in the present utility model is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present utility model (but not limited to) having similar functions are replaced with each other.
Claims (11)
1. Coal gasifier with on-line measuring function, its characterized in that includes:
a gasifier shell;
the top end of the gasification furnace shell is provided with a burner;
a gasification chamber, a waste heat recovery chamber and a slag water chamber are arranged in the gasification furnace shell;
a first water-cooling wall is arranged in the gasifier shell, the first water-cooling wall surrounds the gasification chamber, a first flowmeter and a first temperature sensor are arranged on an inlet side pipeline of the first water-cooling wall, the first water-cooling wall comprises a plurality of first water-cooling pipes which are communicated in parallel, and at least 1/2 of the inlets and outlets of the first water-cooling pipes are provided with second temperature sensors;
the top of the waste heat recovery chamber is connected with the top of the gasification chamber, a synthesis gas outlet and a radiation waste boiler are arranged in the waste heat recovery chamber, the radiation waste boiler comprises a plurality of groups of water cooling screens, a second flowmeter and a third temperature sensor are arranged at a cooling water inlet of each water cooling screen, and a fourth temperature sensor is arranged at a cooling water outlet of each water cooling screen;
the bottom of gasifier casing contracts and forms the slag notch, the top of sediment hydroecium is connected with the bottom of waste heat recovery room, the bottom and the slag notch of sediment hydroecium are connected, be provided with fifth temperature sensor under the liquid level line of sediment hydroecium.
2. The coal gasifier with an on-line detection function according to claim 1, wherein the second temperature sensor provided on each of the first water-cooled walls is provided at equal intervals, and the interval is not more than 0.5m.
3. The coal gasifier with an on-line detection function according to claim 1, wherein the interval between the second temperature sensors provided on each of the first water-cooled walls is gradually reduced along the flow direction of the cooling water.
4. The coal gasifier with an on-line detection function according to claim 1, wherein the second temperature sensor is a thermocouple;
the thermocouple is connected to the thermocouple server by a wired manner.
5. The coal gasifier with an on-line detection function according to claim 4, wherein the thermocouple is disposed in a jacket, and a measurement end of the thermocouple extends to an outside of the jacket, and the jacket contacts with an outer wall of the first water-cooled tube or penetrates into an inside of the first water-cooled tube.
6. The coal gasifier with an on-line detection function according to claim 5, wherein the jacket extends into the inner wall of the first water cooling pipe by a length of 2-5mm.
7. The coal gasifier with an on-line detection function according to claim 1, wherein the synthesis gas outlet is provided in a middle portion of a side wall of the waste heat recovery chamber or at a top portion of the slag water chamber.
8. The coal gasifier with an on-line detection function according to claim 1, wherein the radiant waste boiler further comprises a second water-cooled wall, a sixth temperature sensor and a third flowmeter are arranged at an inlet of the second water-cooled wall, and a seventh temperature sensor is arranged at an outlet of the second water-cooled wall.
9. The coal gasifier with an on-line detection function according to claim 8, wherein the second water-cooled walls are two groups, and each group of the second water-cooled wall inlet side pipelines is provided with the third flowmeter and the sixth temperature sensor, and the outlet side pipeline is provided with the seventh temperature sensor.
10. The coal gasifier with the online detection function according to claim 9, wherein the second water-cooled wall comprises a plurality of second water-cooled pipes which are communicated in parallel, and at least 1/2 of inlets and outlets of the second water-cooled pipes are provided with eighth temperature sensors.
11. The coal gasifier with on-line detection function according to claim 1, wherein the number of water cooling screen groups is 8-12 and is uniformly distributed around the waste heat recovery chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320881998.5U CN219546915U (en) | 2023-04-19 | 2023-04-19 | Coal gasifier with on-line detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320881998.5U CN219546915U (en) | 2023-04-19 | 2023-04-19 | Coal gasifier with on-line detection function |
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| Publication Number | Publication Date |
|---|---|
| CN219546915U true CN219546915U (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320881998.5U Active CN219546915U (en) | 2023-04-19 | 2023-04-19 | Coal gasifier with on-line detection function |
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| CN (1) | CN219546915U (en) |
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2023
- 2023-04-19 CN CN202320881998.5U patent/CN219546915U/en active Active
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