CN211988014U - Portable flue gas multi-pollutant catalytic purification field test device - Google Patents
Portable flue gas multi-pollutant catalytic purification field test device Download PDFInfo
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- CN211988014U CN211988014U CN202020029299.4U CN202020029299U CN211988014U CN 211988014 U CN211988014 U CN 211988014U CN 202020029299 U CN202020029299 U CN 202020029299U CN 211988014 U CN211988014 U CN 211988014U
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Abstract
The utility model relates to the technical field of atmospheric pollution control, in particular to a portable flue gas multi-pollutant catalytic purification field test device, which comprises a movable box body, a reducing gas injection system, a blast air inlet system, a first flue, a pretreatment system, a second flue, a catalytic reaction system and a discharge flue; the blowing and air-intake system comprises a fan, the pretreatment system comprises a gas pretreatment tank and an electric heating pipe positioned in the gas pretreatment tank, the catalytic reaction system comprises a U-shaped catalytic reactor, an electric heating pipe and a catalyst positioned in the U-shaped catalytic reactor, and the reducing gas injection system comprises a reducing gas bottle, a flowmeter and an injector head positioned in the gas pretreatment tank and a second flue; the fan, the first flue, the gas pretreatment tank, the second flue, the U-shaped catalytic reactor and the discharge flue are connected in sequence. The utility model is suitable for a catalytic purification field test of multiple fixed source flue gas multiple pollutants.
Description
Technical Field
The utility model relates to an atmosphere pollution control technical field, concretely relates to portable flue gas multi-pollutant catalytic purification field test device.
Background
Flue gas of fixed sources such as industrial boilers (coal-fired boilers and biomass boilers), kilns (cement kilns, glass kilns, ceramic kilns, aluminum profile casting furnaces and the like), garbage incinerators and the like can discharge various atmospheric pollutants such as CO and SO2NOx, VOCs, heavy metals, dioxins, and the like. Along with the tightening of the emission standard of the atmospheric pollutants, the fixed source flue gas deep treatment technology is in urgent need. Catalysis is one of the most efficient atmospheric pollutant treatment technologies at present, and can be used for purifying pollutants such as CO, NOx, VOCs, dioxin and the like. In the atmospheric pollution treatment project, flue gas components, flue gas amount, temperature and the like in different industries have great differences, and in order to improve the effect of the treatment project, the treatment project needs to be designed and an applicable catalyst needs to be selected according to conditions such as site flue gas characteristics, combustion working conditions and the like, so that the development of a site catalytic test device is very necessary. At present, the patents CN201821983071.8, CN201410319064.8,CN201620394998.2, CN201720646283.6 and CN201420370532.X disclose a series of test devices, and some devices carry out off-line detection by simulating actual smoke, and are not suitable for on-site actual smoke on-line detection; some devices can carry out on-site catalytic performance on-line detection, but have the technical problems of small flue gas treatment amount, single flue gas treatment condition, unreasonable design and the like.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model aims at: the portable field test device for catalytic purification of multiple pollutants in flue gas is suitable for field tests of catalytic purification of multiple pollutants in flue gas with multiple fixed sources.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a portable flue gas multi-pollutant catalytic purification field test device comprises a movable box body, a reducing gas injection system, a blast air inlet system, a first flue, a pretreatment system, a second flue, a catalytic reaction system and a discharge flue, wherein the first flue, the pretreatment system, the second flue, the catalytic reaction system and the discharge flue are arranged on the movable box body; the air blowing and air inlet system comprises a fan for air blowing and air inlet, the pretreatment system comprises a gas pretreatment tank and an electric heating pipe positioned in the gas pretreatment tank, the catalytic reaction system comprises a U-shaped catalytic reactor and an electric heating pipe positioned in the U-shaped catalytic reactor, a catalyst is placed in the U-shaped catalytic reactor, the reducing gas injection system comprises a reducing gas cylinder, a flow meter communicated with the reducing gas cylinder and an injection head, at least 1 injection head is positioned in the gas pretreatment tank, and at least 1 injection head is positioned in a second flue; the fan, the first flue, the gas pretreatment tank, the second flue, the U-shaped catalytic reactor and the discharge flue are connected in sequence.
Furthermore, the movable box body comprises a stainless steel box body, a movable roller and a roller brake pad, the movable roller is installed at the bottom of the stainless steel box body, and the roller brake pad is installed on the movable roller.
Furthermore, a temperature controller for adjusting the temperature of the electric heating pipe is also arranged on the movable box body.
Furthermore, the air-blowing air inlet system further comprises a flue air inlet pipe, a square-circle reducing flange and a first flange, wherein the flue air inlet pipe is connected to the first flange on the fan, one end of the square-circle reducing flange is connected to the fan, and the other end of the square-circle reducing flange is connected to the first flue.
Furthermore, the U-shaped catalytic reactor comprises a first catalytic cavity area, a smoke passing cavity area and a second catalytic cavity area, wherein a second flue, the first catalytic cavity area, the smoke passing cavity area, the second catalytic cavity area and the discharge flue are sequentially connected through a second flange, an electric heating pipe and a catalyst separation net are arranged in the first catalytic cavity area and the second catalytic cavity area, and a catalyst is placed in the catalyst separation net.
Further, the catalyst is a monolithic honeycomb catalyst or a plate catalyst or a corrugated catalyst or a bar catalyst.
Furthermore, a sampling hole is arranged on the discharge flue.
Furthermore, thermocouples for detecting temperature are arranged at the inlet of the gas pretreatment tank, the outlet of the gas pretreatment tank, the inlet of the first catalytic cavity area, the middle part of the second catalytic cavity area and the discharge flue.
Furthermore, the reducing gas injection system also comprises a pressure reducing gas valve and a three-way gas valve, wherein the reducing gas cylinder, the pressure reducing gas valve, the flowmeter, the three-way gas valve and the injection head are sequentially connected.
Furthermore, the first flue, the gas pretreatment tank, the second flue and the U-shaped catalytic reactor are all welded by 316L stainless steel, and the surfaces of the first flue, the gas pretreatment tank, the second flue and the U-shaped catalytic reactor are all covered with heat insulation materials.
In general, the utility model has the advantages as follows:
one, the utility model discloses can carry out on-the-spot catalytic purification experiment to fixed source flue gas multiple pollutants, can adjust reaction parameter to flue gas characteristic and burning operating mode, in real time, detect the catalytic purification effect of flue gas fast to can carry out capability test to the catalyst of different grade type, different specifications under the same flue gas condition, can high-efficiently purify pollutants such as NOx in the flue gas simultaneously, CO, VOCs and dioxin, have extensive applicability, with strong points, high-efficiently purify advantages such as multiple pollutant in the flue gas. The utility model can treat the air quantity of 100-600m3The fixed source flue gas with the temperature of 30-500 ℃ is mainly suitable forThe catalytic purification field test of the fixed-source smoke gas multi-pollutants comprises industrial boilers (coal-fired boilers and biomass boilers), kilns (cement kilns, glass kilns, ceramic kilns, aluminum profile casting furnaces and the like), garbage incinerators and the like.
Two, the utility model discloses overall structure reasonable in design has compact structure, small, removes advantages such as convenient, the catalyst change is convenient, can provide powerful data support for the flue gas is administered engineering design, also can satisfy scientific research project field test demand.
Drawings
Fig. 1 is an overall schematic view of the present invention.
The device comprises a fan 1, a first flange 1-1, a gas pretreatment tank 2, a U-shaped catalytic reactor 3, a first catalytic cavity area 3-1, a smoke passing cavity area 3-2, a second catalytic cavity area 3-3, a catalyst separation net 3-4, a second flange 3-5, a reduction gas cylinder 4, a pressure reduction gas valve 4-1, a flowmeter 4-2, a three-way gas valve 4-3, an injector head 4-4, a thermocouple 5, a square-round reducer 6, a first flue 7, a heat insulation material 8, an electric heating pipe 9-1, a temperature controller 9, a second flue 10, a discharge flue 11, a sampling hole 12, a stainless steel box 13, a movable roller 14 and a roller brake pad 15.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1, a portable flue gas multi-pollutant catalytic purification field test device comprises a movable box body, a reducing gas injection system, a blast air inlet system, a first flue, a pretreatment system, a second flue, a catalytic reaction system and a discharge flue, wherein the blast air inlet system, the first flue, the pretreatment system, the second flue, the catalytic reaction system and the discharge flue are sequentially arranged along a flue gas circulation direction; the reducing gas injection system, the air blowing and air inlet system, the first flue, the pretreatment system, the second flue, the catalytic reaction system and the discharge flue are all arranged on the movable box body or are partially arranged on the movable box body. The blower of the air-blowing air-intake system, the first flue, the gas pretreatment tank of the pretreatment system, the second flue, the U-shaped catalytic reactor of the catalytic reaction system and the discharge flue are connected in sequence.
The air-blast air inlet system comprises a flue air inlet pipe for introducing external flue gas into the fan, a first flange for connecting the flue air inlet pipe to the fan, the fan for blowing air into the air, and square and round reducing pipes for connecting the fan to the first flue, wherein the flue air inlet pipe, the fan, the square and round reducing pipes and the first flue are sequentially connected, the square and round reducing pipes are of the prior art, one end of the square and round reducing pipes connected with the fan is square, and one end of the square and round reducing pipes connected with the first flue is circular.
The pretreatment system comprises a gas pretreatment tank and an electric heating pipe positioned in the gas pretreatment tank, the electric heating pipe is arranged along the inner wall of the gas pretreatment tank, one end of the gas pretreatment tank is connected with a first flue, and the other end of the gas pretreatment tank is connected with a second flue. The first flue is used for connecting the square-round reducing pipe and the gas pretreatment tank and allowing flue gas to enter the gas pretreatment tank, and the second flue is used for connecting the gas pretreatment tank and the U-shaped catalytic reactor and allowing flue gas to enter the U-shaped catalytic reactor.
The catalytic reaction system comprises a U-shaped catalytic reactor and an electric heating pipe positioned in the U-shaped catalytic reactor, the U-shaped catalytic reactor comprises a first catalytic cavity area, a smoke passing cavity area and a second catalytic cavity area, a second flue, the first catalytic cavity area, the smoke passing cavity area, the second catalytic cavity area and a discharge flue are sequentially connected through a second flange, the electric heating pipe is positioned in the first catalytic cavity area and the second catalytic cavity area, catalyst separation nets are further arranged in the first catalytic cavity area and the second catalytic cavity area and are arranged along the inner walls of the first catalytic cavity area and the second catalytic cavity area, and catalysts are placed in the catalyst separation nets; the second flanges between the first catalytic cavity area and the second flue and between the second catalytic cavity area and the flue-passing cavity area are mainly used for replacing the catalyst in the first catalytic cavity area, and the second flanges between the second catalytic cavity area and the flue-passing cavity area and between the second catalytic cavity area and the exhaust flue are mainly used for replacing the catalyst in the second catalytic cavity area; the catalyst is an integral catalyst, a plate catalyst, a corrugated catalyst or a strip catalyst, and different catalysts can be selected according to different flue gases for catalytic purification treatment.
The exhaust flue is provided with a sampling hole, the flue gas after catalytic purification is discharged from the exhaust flue, and the sampling hole is used for detecting the concentration of each pollutant in the flue gas after catalytic purification.
Thermocouples for detecting temperature are arranged at the inlet of the gas pretreatment tank, the outlet of the gas pretreatment tank, the inlet of the first catalytic cavity area, the middle of the second catalytic cavity area and the exhaust flue, and the thermocouples can detect the temperature in different areas.
The reducing gas injection system comprises a reducing gas bottle, a pressure reducing gas valve, a flowmeter, a three-way gas valve and an injector head, wherein at least 1 injector head is positioned in the gas pretreatment tank, at least 1 injector head is positioned in the second flue, in the embodiment, 2 injector heads are positioned in the gas pretreatment tank, 3 injector heads are positioned in the second flue, the reducing gas bottle, the pressure reducing gas valve, the flowmeter and the three-way gas valve are sequentially connected through pipelines, two pipelines are connected to the outlet of the three-way gas valve, one pipeline is connected with the injector head in the gas pretreatment tank, and the other pipeline is connected with the injector head in the second flue.
The movable box body comprises a stainless steel box body, a movable roller and a roller brake pad, the movable roller is installed at the bottom of the stainless steel box body, and the roller brake pad is installed on the movable roller, so that the movable box body is convenient to move and carry, and is convenient and fast. The movable box body is also provided with a temperature controller for adjusting the temperature of the electric heating pipe, and the temperature of the electric heating pipe can be adjusted according to the characteristics of the flue gas. The first flue, the gas pretreatment tank, the second flue and the U-shaped catalytic reactor are all welded by 316L stainless steel, and the surfaces of the first flue, the gas pretreatment tank, the second flue and the U-shaped catalytic reactor are all covered with heat insulation materials.
The principle of the utility model is as follows: the method comprises the steps that smoke enters a fan through a smoke inlet pipe under the action of the fan, then enters a gas pretreatment tank through a square-round reducing flue and a first smoke flue, the smoke is pretreated in the gas pretreatment tank, the pretreatment means that the smoke is mixed and heated in the gas pretreatment tank, then reducing gas is sprayed in the gas pretreatment tank or a second smoke flue, the pretreated smoke and the reducing gas are mixed, the smoke and the reducing gas sequentially enter a first catalytic cavity area, a smoke passing cavity area and a second catalytic cavity area of a U-shaped catalytic reactor through the second smoke flue, the smoke mixed with the reducing gas and catalysts in the first catalytic cavity area and the second catalytic cavity area are subjected to oxidation-reduction reaction, and the catalytically purified smoke is discharged from a discharge flue.
When the test device is used for carrying out catalytic purification field test on the smoke of the aluminum profile casting furnace at the temperature of 30-180 ℃, the blast volume of the fan is adjusted to 300m3And/h, 4 pieces of monolithic honeycomb catalyst (length, width and height 150mm x 300mm) were placed in the catalyst separation net of the first catalytic cavity zone and the second catalytic cavity zone. The flue gas enters the gas pretreatment tank through the first flue under the action of the fan, the flue gas is mixed with reducing gas sprayed in the gas pretreatment tank and then sequentially enters the first catalytic cavity region, the smoke passing cavity region and the second catalytic cavity region through the second flue, NOx and VOCs in the flue gas and catalysts in the first catalytic cavity region and the second catalytic cavity region are subjected to oxidation-reduction reaction, and the flue gas after catalytic purification is discharged from the discharge flue. The initial concentration of each pollutant before the flue gas purification is as follows: NOx 300mg/m3、VOCs 20mg/m3The concentration of each pollutant after the flue gas purification is as follows: NOx 10mg/m3、VOCs 0mg/m3And the purification effect of the flue gas is obvious.
Example 2
The parts not mentioned in this example are the same as example 1, when the test device is used to perform the catalytic purification field test on the flue gas of the garbage incinerator with the temperature of 30-180 ℃, the blast volume of the fan is adjusted to 300m3And/h, 4 pieces of monolithic honeycomb catalyst (length, width and height 150mm x 300mm) were placed in the catalyst separation net of the first catalytic cavity zone and the second catalytic cavity zone. The flue gas enters the gas pretreatment tank for pretreatment through the first flue under the action of the fan, then enters the second flue to be mixed with the reducing gas sprayed in the second flue, and then sequentially enters the first catalytic cavity region, the smoke passing cavity region and the second catalytic cavity region through the second flue, CO, NOx and VOCs in the flue gas and catalysts in the first catalytic cavity region and the second catalytic cavity region undergo oxidation-reduction reaction, and the flue gas after catalytic purification is discharged from the discharge flue. The initial concentration of each pollutant before the flue gas purification is as follows: CO 300mg/m3、NOx 300mg/m3、VOCs 20mg/m3Dioxin 0.2ng TEQ/m3Pollutants after flue gas purificationThe concentration is as follows: CO 100mg/m3、NOx 50mg/m3、VOCs 0mg/m3Dioxin 0.01ng TEQ/m3And the purification effect of the flue gas is obvious.
Example 3
The parts not mentioned in the example are consistent with the example 1, when the test device is used for carrying out the catalytic purification field test on the biomass boiler flue gas with the temperature of 80-220 ℃, the blast volume of the fan is adjusted to 600m3And h, placing strip-shaped catalysts in the catalyst separation nets of the first catalytic cavity area and the second catalytic cavity area. The flue gas enters the gas pretreatment tank through the first flue under the action of the fan, the flue gas is mixed with the reducing gas injected in the gas pretreatment tank and then sequentially enters the first catalytic cavity region, the smoke passing cavity region and the second catalytic cavity region through the second flue, pollutants such as CO, NOx, VOCs, dioxin and the like in the flue gas and catalysts in the first catalytic cavity region and the second catalytic cavity region generate oxidation-reduction reaction, and the flue gas after catalytic purification is discharged from the discharge flue. The initial concentration of each pollutant before the flue gas purification is as follows: CO 250mg/m3、NOx 300mg/m3、VOCs 100mg/m3Dioxin 0.1ng TEQ/m3The concentration of each pollutant after the flue gas purification is as follows: CO 150mg/m3、NOx 100 mg/m3、VOCs 10mg/m3Dioxin 0.01ng TEQ/m3And the purification effect of the flue gas is obvious.
Example 4
The parts which are not mentioned in the embodiment are consistent with the embodiment 1, when the test device is used for carrying out the catalytic purification field test on the coal-fired boiler flue gas with the temperature of 250-320 ℃, the blast volume of the fan is adjusted to 500m3And h, placing plate catalysts in the catalyst separation nets of the first catalytic cavity area and the second catalytic cavity area. The flue gas enters the gas pretreatment tank through the first flue under the action of the fan, the flue gas and the reducing gas sprayed in the gas pretreatment tank are mixed and then sequentially enter the first catalytic cavity region, the smoke passing cavity region and the second catalytic cavity region through the second flue, pollutants such as NOx, VOCs and the like in the flue gas and catalysts in the first catalytic cavity region and the second catalytic cavity region are subjected to oxidation-reduction reaction, and the flue gas after catalytic purification is discharged from the discharge flue. Flue gas purificationThe initial concentrations of the previous pollutants were: NOx 320mg/m3、VOCs 20mg/m3The concentration of each pollutant after the flue gas purification is as follows: NOx 10mg/m3、VOCs 0mg/m3And the purification effect of the flue gas is obvious.
Example 5
The parts which are not mentioned in the embodiment are consistent with the embodiment 1, when the test device is adopted to carry out the catalytic purification field test on the glass kiln flue gas with the temperature of 140 ℃ and 250 ℃, the blast volume of the fan is adjusted to 100m3And h, setting the temperature of the gas pretreatment tank and the electric heating pipe in the U-shaped catalytic reactor to be 300 ℃ on a temperature controller. A corrugated catalyst is disposed in the catalyst spacer of the first and second catalytic cavity sections. The flue gas enters the gas pretreatment tank through the first flue under the action of the fan, the flue gas and the reducing gas sprayed in the gas pretreatment tank are mixed and then sequentially enter the first catalytic cavity region, the smoke passing cavity region and the second catalytic cavity region through the second flue, pollutants such as NOx, VOCs and the like in the flue gas and catalysts in the first catalytic cavity region and the second catalytic cavity region are subjected to oxidation-reduction reaction, and the flue gas after catalytic purification is discharged from the discharge flue. The initial concentration of each pollutant before the flue gas purification is as follows: NOx 350mg/m3、VOCs 15mg/m3The concentration of each pollutant after the flue gas purification is as follows: NOx 15mg/m3、VOCs 0mg/m3And the purification effect of the flue gas is obvious.
Example 6
The parts which are not mentioned in the embodiment are consistent with the embodiment 1, when the test device is adopted to carry out the catalytic purification field test on the flue gas of the ceramic kiln (fuel gas) with the temperature of 150-250 ℃, the blast volume of the fan is adjusted to 200m3And h, setting the temperatures of the electric heating pipes in the gas pretreatment tank and the U-shaped catalytic reactor to be 500 ℃ and 100 ℃ respectively on a temperature controller. 4 pieces of monolithic honeycomb catalyst (length, width and height 150mm x 300mm) were placed in the catalyst grids of the first and second catalytic cell zones. The flue gas enters the gas pretreatment tank for pretreatment through the first flue under the action of the fan, then enters the second flue to be mixed with the reducing gas sprayed in the second flue, and then sequentially enters the first catalytic cavity area and the smoke passing cavity area through the second flueAnd pollutants such as NOx, VOCs and the like in the flue gas and catalysts in the first catalytic cavity area and the second catalytic cavity area are subjected to oxidation-reduction reaction, and the flue gas after catalytic purification is discharged from a discharge flue. The initial concentration of each pollutant before the flue gas purification is as follows: NOx 500mg/m3、VOCs 15mg/m3The concentration of each pollutant after the flue gas purification is as follows: NOx 30mg/m3、VOCs 0mg/m3And the purification effect of the flue gas is obvious.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (10)
1. The utility model provides a portable flue gas multi-pollutant catalytic purification field test device which characterized in that: the device comprises a movable box body, a reducing gas injection system, a blast air inlet system, a first flue, a pretreatment system, a second flue, a catalytic reaction system and an exhaust flue, wherein the first flue, the pretreatment system, the second flue, the catalytic reaction system and the exhaust flue are arranged on the movable box body; the air blowing and air inlet system comprises a fan for air blowing and air inlet, the pretreatment system comprises a gas pretreatment tank and an electric heating pipe positioned in the gas pretreatment tank, the catalytic reaction system comprises a U-shaped catalytic reactor and an electric heating pipe positioned in the U-shaped catalytic reactor, a catalyst is placed in the U-shaped catalytic reactor, the reducing gas injection system comprises a reducing gas cylinder, a flow meter communicated with the reducing gas cylinder and an injection head, at least 1 injection head is positioned in the gas pretreatment tank, and at least 1 injection head is positioned in a second flue; the fan, the first flue, the gas pretreatment tank, the second flue, the U-shaped catalytic reactor and the discharge flue are connected in sequence.
2. The portable field test device for catalytic purification of multiple pollutants in flue gas according to claim 1, characterized in that: the movable box body comprises a stainless steel box body, a movable roller and a roller brake pad, the movable roller is installed at the bottom of the stainless steel box body, and the roller brake pad is installed on the movable roller.
3. The portable field test device for catalytic purification of multiple pollutants in flue gas according to claim 1, characterized in that: the movable box body is also provided with a temperature controller for adjusting the temperature of the electric heating pipe.
4. The portable field test device for catalytic purification of multiple pollutants in flue gas according to claim 1, characterized in that: the air blowing and air inlet system further comprises a flue air inlet pipe, a square and round reducing pipe and a first flange used for connecting the flue air inlet pipe to the fan, one end of the square and round reducing pipe is connected with the fan, and the other end of the square and round reducing pipe is connected with the first flue.
5. The portable field test device for catalytic purification of multiple pollutants in flue gas according to claim 1, characterized in that: the U-shaped catalytic reactor comprises a first catalytic cavity area, a smoke passing cavity area and a second catalytic cavity area, wherein a second flue, the first catalytic cavity area, the smoke passing cavity area, the second catalytic cavity area and a discharge flue are sequentially connected through a second flange, an electric heating pipe and a catalyst separation net are arranged in the first catalytic cavity area and the second catalytic cavity area, and a catalyst is placed in the catalyst separation net.
6. The portable field test device for catalytic purification of multiple pollutants in flue gas according to claim 1, characterized in that: the catalyst is a monolithic honeycomb catalyst or a plate catalyst or a corrugated catalyst or a bar catalyst.
7. The portable field test device for catalytic purification of multiple pollutants in flue gas according to claim 1, characterized in that: the discharge flue is provided with a sampling hole.
8. The portable field test device for catalytic purification of multiple pollutants in flue gas according to claim 5, characterized in that: thermocouples for detecting temperature are arranged at the inlet of the gas pretreatment tank, the outlet of the gas pretreatment tank, the inlet of the first catalytic cavity area, the middle of the second catalytic cavity area and the discharge flue.
9. The portable field test device for catalytic purification of multiple pollutants in flue gas according to claim 1, characterized in that: the reducing gas injection system also comprises a pressure reducing gas valve and a three-way gas valve, and the reducing gas cylinder, the pressure reducing gas valve, the flowmeter, the three-way gas valve and the injector head are sequentially connected.
10. The portable field test device for catalytic purification of multiple pollutants in flue gas according to claim 1, characterized in that: the first flue, the gas pretreatment tank, the second flue and the U-shaped catalytic reactor are all welded by 316L stainless steel, and the surfaces of the first flue, the gas pretreatment tank, the second flue and the U-shaped catalytic reactor are all covered with heat insulation materials.
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| CN202020029299.4U CN211988014U (en) | 2020-01-07 | 2020-01-07 | Portable flue gas multi-pollutant catalytic purification field test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113731103A (en) * | 2021-09-07 | 2021-12-03 | 福建师范大学 | Efficient and energy-saving volatile organic compound treatment equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113731103A (en) * | 2021-09-07 | 2021-12-03 | 福建师范大学 | Efficient and energy-saving volatile organic compound treatment equipment |
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