CN209901036U - Device for large-scale degradation of industrial waste gas - Google Patents
Device for large-scale degradation of industrial waste gas Download PDFInfo
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- CN209901036U CN209901036U CN201822237064.XU CN201822237064U CN209901036U CN 209901036 U CN209901036 U CN 209901036U CN 201822237064 U CN201822237064 U CN 201822237064U CN 209901036 U CN209901036 U CN 209901036U
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- 239000007789 gas Substances 0.000 title claims abstract description 120
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 34
- 230000015556 catabolic process Effects 0.000 title claims abstract description 31
- 239000002440 industrial waste Substances 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 230000000593 degrading effect Effects 0.000 claims abstract description 20
- 238000005260 corrosion Methods 0.000 claims abstract description 15
- 239000012159 carrier gas Substances 0.000 claims abstract description 13
- 230000007797 corrosion Effects 0.000 claims abstract description 11
- 230000003197 catalytic effect Effects 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 4
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000003513 alkali Substances 0.000 description 6
- 239000004809 Teflon Substances 0.000 description 5
- 229920006362 Teflon® Polymers 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000005431 greenhouse gas Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a device for degrading industrial waste gas in large scale, which comprises a flow equalizer, a reactor and a gas processing chamber which are detachably connected through an anti-corrosion gas pipe in sequence, and a host and a transformer for controlling the discharge power of the reactor; the host, the transformer and the reactor are electrically connected in sequence; the flow equalizer comprises a water bath tank, a mixed gas channel, a carrier gas channel, a gas channel to be purified and an exhaust assembly; one end of the mixed gas channel is connected with the carrier gas channel and the gas channel to be purified, and the other end of the mixed gas channel is connected with the water bath tank; the exhaust assembly is positioned on the shell of the flow equalizer and is provided with a plurality of air holes; the reactor comprises a plurality of degradation pipes filled with catalytic media, the air inlets of the degradation pipes are connected with the air holes of the exhaust assembly through corrosion-resistant air pipes, and the air outlets of the degradation pipes are connected to the gas treatment chamber through corrosion-resistant air pipes.
Description
Technical Field
The utility model belongs to the technical field of exhaust-gas treatment, concretely relates to extensive degradation industrial waste gas's device especially can be used to carry out degradation treatment to the SF6 of high temperature room effect.
Background
SF6Due to the excellent insulation and arc extinguishing performance, the insulated electrical equipment using the insulating material as the insulating medium has the advantages of high insulation strength, high reliability, small occupied area, small maintenance workload and the like, so that the insulated electrical equipment is favored by the power industry. Therefore, it has been applied to various SF in large scale in recent years6In the gas insulated apparatus, although it brings convenience to the production and life of people, it poses a great threat to the natural environment on which people depend. Because of SF6Is a greenhouse gas with high temperature room effect potential (GWP). The inter-government climate change committee (IPCC) considers: among all greenhouse gases, SF6Has the highest GWP of about CO223900 times (calculated in 100 years time)). Thus, for SF6The control of emissions is imminent.
Control of SF as is currently common6There are two types of methods of discharge. One of them is a patent document of publication No. CN107842711A, which is recycled, but the apparatus is expensive and there is SF6The problem of separating SF6 from the mixed gas. More seriously, the SF in the non-electric industry with the most of the current small dosage6The exhaust gas has a low concentration (about several hundreds to several tens of thousands ppm), is difficult to recycle, and is easy to be directly discharged. Second is SF6Degradation of, i.e. SF6Degrading into various non-greenhouse gases. SF6Has long been degrading, but degrades SF6The method of (3) is still in the experimental phase. SF for power equipment6The gas has high concentration and huge total amount, so how to degrade high-concentration SF on a large scale with high efficiency6Becomes a great technical problem to be solved by scientific researchers in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides a device for degrading industrial waste gas in large scale, which comprises a flow equalizer, a reactor and a gas processing chamber which are detachably connected through an anti-corrosion gas pipe in sequence, and a host and a transformer for controlling the discharge power of the reactor; the host, the transformer and the reactor are electrically connected in sequence; the flow equalizer comprises a water bath tank, a mixed gas channel, a carrier gas channel, a gas channel to be purified and an exhaust assembly; one end of the mixed gas channel is connected with the carrier gas channel and the gas channel to be purified, and the other end of the mixed gas channel is connected with the water bath tank; the exhaust assembly is positioned on the shell of the flow equalizer and is provided with a plurality of air holes, and the exhaust assembly is connected with the reactor; the reactor comprises a plurality of degradation tubes filled with catalytic media, and gas outlets of the degradation tubes are connected to the gas treatment chamber through corrosion-resistant gas tubes.
In the above apparatus for degrading industrial waste gas, the plurality of degradation tubes are arranged in a matrix.
In the device for degrading industrial waste gas, the mixed gas discharged from the air holes of the exhaust assembly is converged and then introduced into the reactor.
In the above apparatus for degrading industrial waste gas, the air hole of the exhaust assembly is connected to the air inlet hole of the degradation pipe through an anti-corrosion air pipe.
In the above apparatus for degrading industrial waste gas, the flow equalizer has a plurality of exhaust assemblies.
In the device for degrading industrial waste gas, the flow equalizer is connected with a plurality of reactors.
In the above apparatus for degrading industrial waste gas, the gases discharged from the gas outlet of the degradation tube are collected together and then introduced into the gas treatment chamber.
In the above apparatus for degrading industrial waste gas, the water bath tank has a heater for controlling the water content of the gas introduced into the reactor.
The utility model discloses mainly there is following effect: 1. the utility model can control the intensity of the degradation reaction through the power supply of the host; adding water vapor into the degradation process through a flow equalizer; the concentration of water vapor fed to the reactor can also be controlled by a heater. 2. The utility model discloses have the gaseous ability of degrading high concentration (0-10%) SF6, also can expand and be used for degrading various other industry harmful gas. 3. The flow equalizer, the reactor and the gas treatment chamber of the utility model are detachably connected through the corrosion-resistant gas pipe, only one reactor can be used aiming at the condition of small degradation amount, if the fruit task amount is large, a plurality of reactors can be jointly degraded, and the resources are effectively saved; the degradation tubes of the reactor form a discharge matrix, and the tubes can work independently without mutual interference, so that the maximum degradation efficiency is exerted. 4. The utility model discloses can change packing medium and catalyst, along with the progress of DBD degradation technique, can change packing medium and reactor in the reactor, even the host computer also can be changed, along with the renewal of technique, the device only can keep an-class degradation level with the less cost of cost.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 shows a composition structure diagram of an apparatus for mass-degrading industrial waste gas.
Fig. 2 is a view showing a constitutional structure of another apparatus for mass-degrading industrial waste gas.
Fig. 3 to 5 show schematic structural diagrams of the current equalizer.
Fig. 6 shows a schematic view of the internal structure of the reactor.
Fig. 7 and 8 are schematic diagrams illustrating the structure of the host.
Fig. 9 shows a transformer structure diagram.
In the figure: 1-a water injection valve, 2-a water level window, 3-a sewage discharge valve, 4-a flow meter, 5-an air inlet, 6-a water bath box, 7-an exhaust component, 8-an air hole, 9-a screw, 10-a handle, 11-an air inlet hole, 12-a discharge area, 13-a heat dissipation hole, 14-a status indicator lamp, 15-an output display screen, 16-a power adjusting button, 17-an alternating current power switch, 18-a roller-stopping protection enabling switch, 19-an AC380V power input interface, 20-a fan wiring interface (DC), 21-an alarm output line interface (AC220V), 22-a fan fuse (3A), 23-an exhaust fan, 24-a transformer medium-voltage wiring interface, 25-an oil hole, 26-a high-voltage output wiring terminal and 27-a ground wiring terminal, 28-air relief holes.
Detailed Description
Fig. 1 shows the composition structure of a device for large-scale degradation of industrial waste gas, which comprises a flow equalizer, a reactor and a gas processing chamber which are connected in sequence. Referring to fig. 2, a flow equalizer may be connected to a plurality of reactors to increase the scale of degradation.
Fig. 3 shows a flow equalizer which plays a role in mixing, flow equalizing and outputting the conveyed gas to be treated and the background gas (diluent gas) and heating the mixed gas in a water bath. The flow equalizer comprises a water bath tank, a mixed gas channel, a carrier gas channel, a gas channel to be purified and at least one exhaust assembly.
The carrier gas channel is filled with a background gas, such as argon or nitrogen. The gas to be purified, e.g. SF, being introduced into the gas channel to be purified6. Rotor flowmeters 4 are arranged on the carrier gas channel and the gas channel to be purified, the flow on the carrier gas channel is measured to be large and used for measuring the flow of the diluent gas and the gas channel to be purifiedThe two flow meters 4 can be mounted on the flow equalizer housing, and are metered small for metering the gas to be purified. Both the carrier gas channel and the gas channel to be cleaned have flow control knobs which can be mounted on the flow equalizer housing, for example below the flow meter 4. The carrier gas channel and the gas channel to be purified are connected to one end of the mixed gas channel, the other end of the mixed gas channel is connected with the water bath box 6, the background gas and the gas to be purified respectively flow in from the gas inlets 5 of the carrier gas channel and the gas channel to be purified and are merged into one path in the mixed gas channel, so that the gas mixing speed can be increased, and the gas can be uniformly output to the reactor. The mixed gas enters the water bath tank 6 through the mixed gas channel, and if the gas is not required to be water, the water in the water bath tank can be drained; the water bath has a heater to control the water vapor content of the incoming air by controlling the temperature of the water bath, thereby controlling the rate of reaction.
The shell of the current equalizer is provided with a water level window 2 for observing the water level in the water bath box 6, if the water quantity is insufficient, water can be injected inwards through the water injection valve 1 (the water injection valve is connected with a tap water pipe through an adapter), and the water injection valve 1 can be installed above the window 2. Accordingly, the water bath box 6 has a drain valve 3, which may be disposed below the window 2, for draining off the sewage left by the impurities dissolved in the water or reacted with the water.
Referring to fig. 4 and 5, an exhaust assembly 7 having a plurality of air holes 8 is located on the shell of the flow equalizer, the mixed gas introduced into the water bath tank 6 is exhausted from the air holes 8 under the action of the self-pressure, and the air holes 8 are connected to the degradation pipe of the reactor through corrosion-resistant air pipes (such as teflon air pipes). Alternatively, the mixed gas discharged from the gas holes 8 of the gas discharge unit 7 may be introduced into the reactor after being mixed. One flow equalizer may have a plurality of exhaust assemblies 7, and when the exhaust assemblies 7 are not used, the air holes 8 may be blocked by plugs. The exhaust assembly 7 may be a flange.
Figure 6 shows a reactor comprising a number of degradation tubes, which may be arranged in a matrix, where all the gas to be purified is DBD degraded. The air inlet 11 of the degradation pipe is connected with the air hole of the flow equalizer through a corrosion-resistant air pipe (such as a Teflon air pipe)And 8, connecting the air outlet of the degradation pipe to the gas treatment chamber through a corrosion-resistant air pipe (such as a Teflon air pipe). The structure of the degradation tube adopts the prior art, such as a conventional double-layer cylindrical discharge tube, each tube is provided with a positive pole and a negative pole, and a layer of ceramic dielectric is covered on the tube to be used as dielectric barrier discharge material. Wherein the outer medium thickness is 2.5mm, the inlayer medium thickness is 2mm, and outer medium internal diameter is 20mm, has 6mm air gaps between the double-deck medium, and the reaction tube is long 300mm, and wherein the regional length of discharging is 200mm, and both sides have respectively reserved 5 cm's distance, guarantee the insulation distance. The negative electrode is a copper cylinder with a diameter of 4mm in the middle of the reaction tube. Two layers of sealing rings are arranged at the protruding parts at the two sides of the pipe, so that the air tightness of the pipe is ensured. Meanwhile, in order to ensure the uniformity of discharge, the positive electrode is a metal net fixed outside the tube. The volume of the discharge region of each tube was 52.78cm3. In order to increase the efficiency of the reaction, each tube is filled with a catalytic medium, which may be in the form of fine alumina balls. The positive poles of all the pipes are gathered to the socket of the reactor shell through high-voltage wires, and the negative poles are gathered to the outer end parts of the pipes through iron wires, so that the grounding is convenient, and the fixing effect can be effectively achieved. The reactor housing may be composed of stainless steel and ceramic, and the bottom of the reactor may be provided with rollers in consideration of the portability of the reactor. Because high-voltage discharge reaction can generate a large amount of heat, and a plurality of pipes are compactly arranged, in order to timely dissipate heat, a plurality of fans are arranged at the top end of the reactor, the fans are firstly turned on and then turned on when the reactor is in reaction, the reactor power supply is also turned off when the reactor is turned off, and the fans are turned off when the temperature of the reactor reaches the room temperature. Correspondingly, the reactor shell is provided with heat dissipation holes.
Fig. 7, 8 show the main machine used to regulate the reactor discharge power. The circuitry of the host may employ existing techniques. Referring to fig. 7, a button 16 for adjusting the power of the reactor is provided on the front panel of the main unit, the adjustment range is 0-9.9 kW, and the output voltage of the transformer can be adjusted by controlling the output voltage of the main unit, so as to achieve the purpose of changing the reaction intensity in the reactor. Referring to fig. 8, on the rear panel of the main unit, the bottom row has 7 interfaces, the left four interfaces are connected to the three-phase power supply, the right three interfaces are grounded, and the two interfaces are connected to the primary side of the transformer. The host is internally provided with a fan which is used for cooling each component in the host in the working process. The left-most edge of the back panel is also provided with a row of interfaces for providing roll stopping protection and overheating protection for the main machine.
The transformer is divided into a high-voltage side and a medium-voltage side, so that the secondary adjustment of the reactor power can be met, wherein the high-voltage side is commonly used, in order to ensure insulation, an insulating sleeve is adopted outside a wire at the high-voltage side, and the wire is required to keep a distance of more than 5cm from any object in the discharging process. The transformer can generate a large amount of heat in the running process, so that the oil temperature in the transformer is rapidly increased, and therefore the oil hole in the top of the transformer is kept in an open state when the transformer is normally used, and the transformer accident caused by vaporization and expansion of oil is avoided. Should use the screw to tighten this oilhole when the transportation, avoid because vibrations or upset lead to transformer oil to spill, the polluted environment increases the cleaning work.
The gas treatment chamber is the most downstream part, and can collect the gas discharged from the gas outlet holes of all the degradation pipes together through a corrosion-resistant gas pipe (such as a Teflon gas pipe), and the gas is discharged from the gas outlet holes after being treated by a gas pool (an alkali liquid pool) in the gas treatment chamber. The gas treatment chamber is provided with at least one alkali liquor pool, for example, each reactor corresponds to one alkali liquor pool, gas discharged from four reactors is converged into four alkali liquor pools through the gas inlet pipe, and then the gas subjected to alkali liquor treatment is discharged through a corrosion-resistant gas pipe (such as a Teflon gas pipe) connecting the gas discharge hole and the alkali liquor pools.
In order to ensure a sufficient completeness of degradation and also to ensure the personal safety of the workers, the entire apparatus should be placed outdoors and the tightness of the apparatus should be closely monitored during use. If the device leaks, the air source is quickly closed, the ventilation is stopped, and the leakage position is immediately checked.
Claims (8)
1. A device for degrading industrial waste gas is characterized by comprising a flow equalizer, a reactor and a gas processing chamber which are detachably connected through an anti-corrosion gas pipe in sequence, and a host and a transformer for controlling the discharge power of the reactor; the host, the transformer and the reactor are electrically connected in sequence; the flow equalizer comprises a water bath tank, a mixed gas channel, a carrier gas channel, a gas channel to be purified and an exhaust assembly; one end of the mixed gas channel is connected with the carrier gas channel and the gas channel to be purified, and the other end of the mixed gas channel is connected with the water bath tank; the exhaust assembly is positioned on the shell of the flow equalizer and is provided with a plurality of air holes, and the exhaust assembly is connected with the reactor; the reactor comprises a plurality of degradation tubes filled with catalytic media, and gas outlets of the degradation tubes are connected to the gas treatment chamber through corrosion-resistant gas tubes.
2. The apparatus for degrading industrial waste gas according to claim 1, wherein the plurality of degradation tubes are arranged in a matrix.
3. The apparatus for degrading industrial waste gas according to claim 1, wherein the mixed gas discharged from the gas holes of the exhaust module is introduced into the reactor after being converged.
4. The apparatus for degrading industrial waste gas according to claim 1, wherein the air hole of the exhaust assembly is connected with an air inlet hole of the degradation pipe through a corrosion-resistant air pipe.
5. The apparatus for degrading industrial waste gas according to claim 3 or 4, wherein the flow equalizer has a plurality of the exhaust assemblies.
6. The apparatus for degrading industrial waste gas according to claim 3 or 4, wherein the flow equalizer is connected to a plurality of the reactors.
7. The apparatus for degrading industrial waste gas according to claim 1, wherein the gases discharged from the gas outlet of the degradation tube are collected and then introduced into the gas treatment chamber.
8. The apparatus for degrading industrial waste gas according to claim 1, wherein the water bath tank has a heater for controlling a water content of the gas introduced into the reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822237064.XU CN209901036U (en) | 2018-12-28 | 2018-12-28 | Device for large-scale degradation of industrial waste gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822237064.XU CN209901036U (en) | 2018-12-28 | 2018-12-28 | Device for large-scale degradation of industrial waste gas |
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| CN209901036U true CN209901036U (en) | 2020-01-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513351A (en) * | 2018-12-28 | 2019-03-26 | 武汉大学 | Device for large-scale degradation of industrial waste gas |
| CN112495159A (en) * | 2020-11-30 | 2021-03-16 | 武汉大学 | Series device for sulfur hexafluoride gas degradation treatment |
-
2018
- 2018-12-28 CN CN201822237064.XU patent/CN209901036U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513351A (en) * | 2018-12-28 | 2019-03-26 | 武汉大学 | Device for large-scale degradation of industrial waste gas |
| CN112495159A (en) * | 2020-11-30 | 2021-03-16 | 武汉大学 | Series device for sulfur hexafluoride gas degradation treatment |
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