CN212134448U - Automatic experimental equipment for simulating high-temperature corrosion environment of biomass - Google Patents
Automatic experimental equipment for simulating high-temperature corrosion environment of biomass Download PDFInfo
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- CN212134448U CN212134448U CN202020385019.3U CN202020385019U CN212134448U CN 212134448 U CN212134448 U CN 212134448U CN 202020385019 U CN202020385019 U CN 202020385019U CN 212134448 U CN212134448 U CN 212134448U
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Abstract
The utility model discloses a simulation living beings high temperature corrosion environment's automatic experimental facilities, in this equipment, oxygen cylinder and nitrogen cylinder are connected with two flowmeters respectively, and two flowmeters are connected with T shape three-way two ports respectively, and T shape three-way third port is connected with first gas washing bottle, and during water bath was arranged in to first gas washing bottle, first gas washing bottle still set up first pipe of giving vent to anger, first pipe of giving vent to anger is connected with the first end of quartz capsule, and the quartz capsule second end is passed through the pipe and is connected with second gas washing bottle, and second gas washing bottle still sets up second pipe of giving vent to anger, through the experimental gas of second pipe of giving vent to anger intraductal production of discharge quartz. The device can adjust the gas content to control the experimental conditions by setting the experimental temperature and the experimental time, thereby providing the simple and efficient automatic experimental device for simulating the high-temperature corrosion environment of the biomass.
Description
Technical Field
The utility model relates to a material high temperature resistance and corrosion resistance experimental facilities field especially relate to a simulation living beings high temperature corrosion environment's automatic experimental facilities of high temperature futilely wets.
Background
High-temperature biomass corrosion is a common phenomenon existing in the existing biomass power plant and is also a main reason for influencing the service life of a boiler of the biomass power plant. In order to prolong the service life of a boiler of a biomass power plant and improve the benefit of the power plant, a corrosion test of a biomass high-temperature corrosion environment is widely researched. The mechanism of biomass high-temperature corrosion is various, so that multiple experiments are required to be carried out as much as possible to find a corrosion source; at the same time, multiple experiments are also required to find ways to reduce and prevent corrosion. However, it is not very feasible to conduct experiments directly at power plants using biomass fuels.
Therefore, it is necessary to design a laboratory facility having the same corrosive environment as the biomass power plant in the laboratory.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention aims to provide a simple and effective experimental device for simulating high-temperature corrosion environment of biomass.
The technical scheme of the utility model as follows:
the utility model provides a simulation living beings high temperature corrosion environment's automatic experimental facilities, oxygen cylinder and nitrogen cylinder are connected with two flowmeters respectively, and two flowmeters are connected with two ports of T shape tee bend respectively, and T shape tee bend third port is connected with first gas washing bottle, and during water bath was arranged in to first gas washing bottle, first gas washing bottle still set up first pipe of giving vent to anger, first pipe of giving vent to anger is connected with the first end of quartz capsule, and the quartz capsule second end is passed through the pipe and is connected with second gas washing bottle, and second gas washing bottle still sets up second pipe of giving vent to anger, and the experimental gas of producing in the quartz capsule is discharged through second pipe of giving vent to anger.
Preferably, the quartz tube is placed in the groove of the tube furnace, and the experimental environment is provided for the quartz tube through the tube furnace.
Preferably, liquid is filled in the first gas washing bottle, and the third port of the T-shaped tee joint is connected with the liquid in the first gas washing bottle.
Preferably, the second gas washing bottle is filled with liquid, and the guide pipe is connected with the liquid in the second gas washing bottle.
Specifically, the liquid in the first gas washing bottle and the liquid in the second gas washing bottle are both deionized water.
Compared with the prior art, the utility model has the advantages that: the device is simple to operate, the settable experiment temperature range is wide, the flow of the introduced mixed gas can be accurately controlled, and the humidity of the water vapor can be accurately controlled.
Drawings
FIG. 1 is the whole structure diagram of an automatic experimental facility for simulating a high-temperature corrosion environment of biomass.
FIG. 2 is a graph showing the experimental result of an automatic experimental facility for simulating high-temperature corrosion environment of biomass.
In fig. 1, the reference numerals of the respective components are as follows: the device comprises a nitrogen cylinder 1, an oxygen cylinder 2, a first flowmeter 3-1, a second flowmeter 3-2, a water bath kettle 4, a first gas washing cylinder 5-1, a second gas washing cylinder 5-2, a tube furnace 6, a quartz tube 7, a first gas outlet conduit 8-1 and a second gas outlet conduit 8-2.
Detailed Description
The utility model provides an automatic experimental facilities of simulation living beings high temperature corrosion environment, for making the utility model discloses a purpose, technical scheme and effect are clearer, more clear and definite, and is following right the utility model discloses do further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in the figure 1, in the automatic experimental equipment for simulating the biomass high-temperature corrosion environment, outlets of a nitrogen cylinder 1 and an oxygen cylinder 2 are respectively connected with a first flowmeter 3-1 and a second flowmeter 3-2, the first flowmeter 3-1 and the second flowmeter 3-2 are connected with two ports of a T-shaped tee joint, a third port of the T-shaped tee joint penetrates through the top of a first gas washing cylinder 5-1 and is contacted with liquid arranged in the first gas washing cylinder 5-1, the first gas washing cylinder 5-1 is placed in a water bath pot 4, a first gas outlet pipe 8-1 is further arranged at the top of the first gas washing cylinder 5-1, the first gas outlet pipe 8-1 is connected with a first end of a quartz tube 7, a second end of the quartz tube 7 is contacted with liquid arranged in a second gas washing cylinder 5-2 through a guide pipe, a second gas outlet pipe 8-2 is further arranged at the top of the second gas washing cylinder 5-2, the experiment gas is discharged through the second gas outlet guide pipe 8-2, the quartz tube 7 is placed in the groove of the tube furnace 6, and the experiment environment is provided for the quartz tube 7 through the tube furnace 6.
Specifically, after the gases in the nitrogen gas cylinder 1 and the oxygen gas cylinder 2 are quantitatively mixed through a first flowmeter 3-1 and a second flowmeter 3-2, the gases are introduced into a first gas washing cylinder 5-1 arranged in a water bath kettle 4, carry quantitative water vapor required by an experiment, and finally are introduced into a quartz tube 7 of a tube furnace 6.
Specifically, the water bath 4 can adjust the mixed gas to carry water vapor with specific humidity from the first gas washing bottle 5-1 by setting the temperature.
Specifically, the sample is subjected to experiment waste gas generated by corrosion reaction of the quartz tube 7, and redundant mixed gas introduced from the nitrogen gas cylinder 1 and the oxygen gas cylinder 2 is connected into the second gas washing cylinder 5-2 through the second end of the quartz tube 7 for reasonable treatment.
Specifically, the quartz tube 7 is used for placing a sample and giving the sample the required experimental environment, and the quartz tube is made of high-temperature-resistant and corrosion-resistant quartz.
Specifically, the tubular furnace 6 can set an experiment temperature and an experiment time according to experiment requirements, provides the same corrosion environment contacted with the biomass fuel boiler for an experiment, the settable experiment temperature range of the tubular furnace 6 is 0-1200 ℃, the combustion temperature of the existing biomass fuel boiler is completely met, and the model of the tubular furnace is OTF-1200X.
Specifically, the nitrogen cylinder 1 and the oxygen cylinder 2 are made of high-pressure-resistant alloy steel.
Specifically, the liquids in the first gas washing bottle 5-1 and the second gas washing bottle 5-2 are deionized water. The deionized water in the first gas washing bottle 5-1 is used for leading the mixed gas entering from the top of the first gas washing bottle to carry water vapor with specific humidity required by experiments; the deionized water in the second gas washing bottle 5-2 was used to collect the experimental off-gas in the quartz tube 7 in the tube furnace 6.
Specifically, the temperature rise and decrease speed of the tube furnace cannot exceed 10 ℃/min.
The utility model discloses an equipment mainly comprises tubular furnace 6, water bath 4, nitrogen cylinder 1 and oxygen cylinder 2, and in the experimentation, the alloy sample that will corrode is put in quartz capsule 7, places quartz capsule 7 in the recess of tubular furnace 6, covers tubular furnace 6 and fixes tubular furnace 6 with the buckle, and tubular furnace 6 is the primary space that the alloy sample corrodes, and the whole circulation of alloy sample corrodes all in this space. During the experiment, firstly, an alloy sample for the experiment is put into a quartz tube 7 and sealed by a flange sealing disc, then an oxygen cylinder 2 and a nitrogen cylinder 1 are opened, the gas flow required by the experiment can be adjusted by a first flowmeter 3-1 and a second flowmeter 3-2, then a water bath pot 4 is opened, the temperature is adjusted to the target temperature according to the experiment requirement, the oxygen provided by the oxygen cylinder 2 and the nitrogen provided by the nitrogen cylinder 1 form mixed gas through two ports of a T-shaped tee joint, the mixed gas is introduced into a first gas washing bottle 5-1 arranged in the water bath pot 4 through a third port of the T-shaped tee joint and is mixed with deionized water in the first gas washing bottle 5-1, water vapor with specific humidity is carried at the target temperature and enters the first end of the quartz tube 7 through a first gas outlet conduit 8-1, and impurity gas in the quartz tube 7 is removed completely, opening a switch of the tube furnace 6 after impurity gas is completely removed, setting initial temperature, heating time, experiment constant temperature, constant temperature time, cooling temperature and cooling time according to the preset experiment requirements, carrying mixed gas of water vapor with specific humidity to perform high-temperature corrosion reaction with an alloy sample in the quartz tube 7 at the experiment temperature, enabling the reacted experiment waste gas to enter the second gas washing bottle 5-2 through the second end of the quartz tube 7 through a guide pipe, collecting water-soluble experiment waste gas generated in the experiment process through deionized water in the second gas washing bottle 5-2, and discharging the residual water-insoluble experiment waste gas through the second gas outlet guide pipe 8-2.
Examples
Firstly, putting an alloy sample for experiment into a quartz tube 7 and sealing the alloy sample by a flange sealing disc, then opening an oxygen cylinder 2 and a nitrogen cylinder 1, adjusting a first flow meter 3-1 to 55 percent, adjusting a second flow meter 3-2 to 30 percent, then opening a water bath pot 4, adjusting the target temperature to 55 ℃ according to the experiment requirement, forming mixed gas by the oxygen provided by the oxygen cylinder 2 and the nitrogen provided by the nitrogen cylinder 1 through two ports of a T-shaped tee joint, leading the mixed gas into a first washing gas cylinder 5-1 placed in the water bath pot 4 through a third port of the T-shaped tee joint, mixing the mixed gas with deionized water in the first washing gas cylinder 5-1, leading the mixed gas to carry water vapor with specific humidity at the target temperature of 55 ℃ and enter a first end of the quartz tube 7 through a first gas outlet conduit 8-1, and coating the surface of the alloy sample in the quartz tube 7 with corrosive salt required for experiment, the mixed gas introduced into the quartz tube 7 from the first gas outlet guide tube 8-1 is very close to the environment atmosphere of the biomass during high-temperature corrosion; in addition, the experiment temperature and the experiment time set by the tubular furnace 6 are consistent with the temperature and the time length of high-temperature corrosion of various biomasses. FIG. 2 is the corrosion weight gain results after KCl coating of samples coated with nickel aluminum under the experimental conditions set by the experimental equipment. Wherein the initial temperature of the tubular furnace 6 is 10 ℃, the temperature rise time is 60min, the experimental constant temperature is 600 ℃, the constant temperature time is 4320min, the temperature reduction temperature is 10 ℃, and the temperature reduction time is 60 min.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it should be understood that various changes, substitutions and improvements can be made without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a simulation living beings high temperature corrosion environment's automatic experimental facilities, its characterized in that, oxygen cylinder and nitrogen cylinder are connected with two flowmeters respectively, and two flowmeters are connected with two ports of T shape tee bend respectively, and the three third port of T shape tee bend is connected with first gas washing bottle, and during water bath was arranged in to first gas washing bottle, first gas washing bottle still set up first pipe of giving vent to anger, first pipe of giving vent to anger is connected with the first end of quartz capsule, and the quartz capsule second end is passed through the pipe and is connected with second gas washing bottle, and second gas washing bottle still sets up the second pipe of giving vent to anger.
2. The apparatus of claim 1, wherein a quartz tube is placed in a groove of the tube furnace.
3. The apparatus of claim 1, wherein the outlets of the oxygen cylinder and the nitrogen cylinder are connected to a first flow meter and a second flow meter, respectively, and the first flow meter and the second flow meter are connected to two ports of the tee.
4. The apparatus of claim 1, wherein the first gas scrubber bottle contains liquid and the third port of the tee is fluidly connected to the liquid in the first gas scrubber bottle.
5. The apparatus of claim 1, wherein the second scrubber bottle contains a liquid and the conduit is in fluid communication with the liquid in the second scrubber bottle.
6. The apparatus of claim 4 or 5, wherein the liquids in the first and second scrubbers are deionized water.
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CN202020385019.3U CN212134448U (en) | 2020-03-24 | 2020-03-24 | Automatic experimental equipment for simulating high-temperature corrosion environment of biomass |
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CN202020385019.3U CN212134448U (en) | 2020-03-24 | 2020-03-24 | Automatic experimental equipment for simulating high-temperature corrosion environment of biomass |
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2020
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