CN217684981U - Oxygen-rich mixer and oxygen supply system with same - Google Patents
Oxygen-rich mixer and oxygen supply system with same Download PDFInfo
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- CN217684981U CN217684981U CN202221322101.7U CN202221322101U CN217684981U CN 217684981 U CN217684981 U CN 217684981U CN 202221322101 U CN202221322101 U CN 202221322101U CN 217684981 U CN217684981 U CN 217684981U
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 193
- 239000001301 oxygen Substances 0.000 title claims abstract description 193
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 193
- 239000007789 gas Substances 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- 238000010926 purge Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 229910001882 dioxygen Inorganic materials 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 description 14
- 239000000446 fuel Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- IYSGJCJSRBFZSZ-UHFFFAOYSA-N carbon monoxide;manganese;5-methylcyclopenta-1,3-diene Chemical compound [Mn].[O+]#[C-].[O+]#[C-].[O+]#[C-].C[C-]1C=CC=C1 IYSGJCJSRBFZSZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model relates to an oxygen supply equipment technical field of oxygen boosting burner, provide an oxygen-enriched mixer and be equipped with oxygen system of oxygen-enriched mixer very much, mix the oxygen ware including the one-level, the one-level mixes the oxygen ware and includes first ring canal structure, the first side mouth of pipe of first ring canal structure axial is air inlet, first ring canal structure includes interior rampart and outer rampart, be the annular chamber between interior rampart and the outer rampart, on the outer rampart, be equipped with the oxygen entry, on the interior rampart, be equipped with a plurality of oxygen through-holes, the axial second side mouth of pipe of first ring canal structure is one-level and mixes oxygen air current export, the second side mouth of pipe and the oxygen supply equipment entry linkage of first ring canal structure. This is novel provide an oxygen mixer for oxygen supply equipment, improves oxygen content, improves combustion apparatus's combustion effect.
Description
Technical Field
The utility model relates to an oxygen supply equipment technical field of oxygen boosting burner provides an oxygen-enriched mixer and be equipped with oxygen system of oxygen-enriched mixer very much.
Background
The most important characteristic of oxygen-enriched combustion is O in the combustion improver 2 The content is more than 21 percent until reaching pure oxygen, thereby reducing 79 percent of N during air combustion 2 The content does not participate in the combustion reaction, and the flue gas is finally discharged into the atmosphere along with the flue gas to cause a large amount of heat loss, so that the energy-saving effect is obvious. Specifically, the oxygen-enriched combustion technology applied to a steel rolling heating furnace has the following characteristics: 1. the energy-saving effect is obvious, and the unit fuel consumption is reduced. The oxygen-enriched combustion reduces the volume of combustion air and combustion waste gas, increases the carrying-in of effective physical heat in the combustion air, and reduces the heat loss brought away by flue gas, thereby reducing the consumption of ton steel fuel. In general, the volume fraction of oxygen increases by 1%, and the smoke gas quantity decreases by 2.0% -4.5%. Experiments show that the fuel can be saved by 10-15% by implementing oxygen-enriched combustion with the oxygen content of 23-25% on the gas heating furnace. 2. The heat transfer effect is good, and the yield of the heating furnace is high. The oxygen-enriched combustion-supporting can reduce the ignition temperature of the fuel and accelerate the combustion reaction speed; the theoretical combustion temperature of the fuel is increased along with the increase of the oxygen concentration of the oxygen-enriched air, and the heat transfer rate is in direct proportion to the 4 th power of the temperature, so the heat radiation can be greatly increased by increasing the combustion temperature; the oxygen-enriched combustion can improve the content of radioactive gas CO in the combustion products 2 And H 2 O, the radiant power of which is 2 times that of the air combustion products. These all enhance the heat transfer efficiency and make the heating rate greatly improved. 3. Short heating time and less oxidation burning loss. Researches show that the heating time of the stepping heating furnace in the high-temperature oxygen-enriched combustion process is reduced along with the increase of the oxygen-containing concentration, the oxygen-containing volume fraction of air is increased from 21% to 54%, the preheating temperature is increased from 200 ℃ to 900 ℃, the heating time can be saved by 38%, and the labor productivity is improved by 61%; the amount of oxide layer formation decreased with increasing oxygen concentration, and the volume fraction of oxygen was 54The volume fraction of oxygen is 21% when the temperature of the preheated air is 900 ℃, and the oxidation burning loss is reduced by 40% when the temperature of the preheated air is 200 ℃. It can be seen that the higher the oxygen-enriched concentration is, the more complete the combustion is, the shorter the heating time is, the shorter the time for the surface of the steel billet at the high temperature to contact with oxygen and participate in the reaction is, and the less the scale is generated. 4. Reduction of NO X The amount of discharge of (c). 5. Can improve the theoretical combustion temperature of the fuel, and is beneficial to the reasonable utilization of low-calorific-value fuels such as blast furnace gas, producer gas, converter gas and the like. 6. The sizes of relevant equipment such as a combustion chamber, a smoke exhaust channel, a burner, a combustion fan, a heat exchanger, a pipeline, a valve and the like can be reduced, and the equipment investment and the maintenance cost are reduced. 7. The application is flexible and convenient, the method is suitable for both a newly-built heating furnace and the expanded production transformation of an old heating furnace, the equipment investment is low, and the occupied space is small. Therefore, the oxygen-enriched combustion technology is energy-saving and environment-friendly, reduces the cost and improves the yield, and in the prior art, the oxygen-enriched mixing equipment matched with the heating furnace has the problem of poor oxygen mixing effect.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an oxygen-rich mixer and be equipped with oxygen system of oxygen-rich mixer improves the oxygen content in the mixed oxygen stream.
The utility model discloses a realize like this, at first provide a rich oxygen mixer, mix the oxygen ware including the one-level, the one-level mixes the oxygen ware and includes first ring canal structure, the first side mouth of pipe of first ring canal structure axial is air inlet, first ring canal structure includes interior rampart and outer rampart, be the annular chamber between interior rampart and the outer rampart, on the outer rampart, be equipped with the oxygen entry, on the interior rampart, be equipped with a plurality of oxygen through-holes, the axial second side mouth of pipe of first ring canal structure mixes oxygen air current export for the one-level, the second side mouth of pipe and the oxygen supply equipment entry linkage of first ring canal structure.
Preferably, a plurality of nozzles are connected to the inner side of the oxygen through hole on the inner ring wall, and the nozzles are connected in an inclined manner, wherein the inclined direction is inclined from the first side nozzle of the first ring pipe structure to the second side nozzle.
Further preferably, the nozzles comprise at least one circle of long nozzles and at least one circle of short nozzles, and the long nozzles are annularly arranged at a position closer to the first side pipe orifice of the first ring pipe structure than the short nozzles are annularly arranged.
Further preferably, the oxygen mixing device comprises a second annular pipe structure and a conical cap structure, an axial first side pipe orifice of the second annular pipe structure is connected with a second side pipe orifice of the first annular pipe structure, the conical cap structure is connected in the second annular pipe structure through a supporting structure, an airflow channel is arranged between the outer side wall of the conical cap structure and the inner wall of the second annular pipe structure, the top end of the conical cap structure faces towards the second side pipe orifice of the first annular pipe structure, and an axial second side pipe orifice of the second annular pipe structure is connected with an inlet of oxygen supply equipment.
Further preferably, the conical cap structure and the second ring pipe structure are coaxially arranged, and the supporting structure is a plurality of supporting rods.
Further preferably, the primary oxygen mixer and the secondary oxygen mixer are made of stainless steel.
On the other hand, the utility model also provides an oxygen system with rich oxygen blender, including foretell rich oxygen blender, connection oxygen pipeline on the oxygen entry and with rich oxygen blender exit linkage's oxygen supply apparatus, on the oxygen pipeline, according to the direction from far to near apart from rich oxygen blender, be equipped with first manual valve, first pressure sensor, automatically regulated valve, automatic cutout valve, the manual valve of second and second pressure sensor in proper order.
Preferably, a first flame arrester is arranged on a pipeline on one side, close to the oxygen-enriched mixer, of the first manual valve, and a second flame arrester is arranged on a pipeline on one side, far away from the oxygen-enriched mixer, of the second manual valve.
Preferably, the oxygen pipeline is also provided with a nitrogen purging pipeline and a replacement blowdown pipeline; and a flowmeter and a temperature sensor are arranged on two sides of the first pressure sensor.
Further preferably, a filter is connected to an air inlet of the primary oxygen mixer, and an oxygen analyzer is provided on a pipeline connecting the oxygen-enriched mixer and the oxygen supply device.
Compared with the prior art, the utility model has the advantages of:
1. the air and the oxygen are premixed through the first ring pipe structure, and then are mixed for the second time, so that the air and the oxygen are mixed more fully compared with the primary mixing; the airflow flowing into the second loop pipe structure impacts the conical cap structure and is separated by the conical cap structure, and the airflow channel is gradually narrowed along with the increase of the diameter of the conical cap structure, so that the airflow is gradually extruded and mixed more uniformly and sufficiently, and the safe use of the blast furnace fan is ensured;
2. the oxygen is fed into the first ring pipe structure through the plurality of nozzles, so that the impact force of the oxygen can be increased, the oxygen can be mixed with the oxygen entering the first ring pipe structure more quickly, in addition, the oxygen can be dispersedly fed into the first ring pipe, the over-concentration of the local oxygen is avoided, the uniform mixing is easier, and the premixing effect is enhanced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and embodiments:
fig. 1 is a schematic structural diagram of an oxygen-rich mixer provided in embodiment 2 of the present invention;
fig. 2 is a schematic structural view of an oxygen supply system provided with an oxygen-rich mixer according to embodiment 3 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples 1,
The embodiment provides an oxygen-rich mixer, including one-level oxygen mixer 1, one-level oxygen mixer 1 includes first ring canal structure 101, the first side mouth of pipe of first ring canal structure 101 axial is air inlet, first ring canal structure 101 includes interior rampart 1011 and outer rampart 1012, be the annular chamber between interior rampart 1011 and the outer rampart 1012, on outer rampart 1012, be equipped with the oxygen entry, on the interior rampart 1011, be equipped with a plurality of oxygen through-holes, the axial second side mouth of pipe of first ring canal structure 101 is one-level oxygen-mixed gas flow outlet, the second side mouth of pipe and the oxygen supply equipment entry linkage of first ring canal structure 101.
When the oxygen-rich mixer in the embodiment is used for supplying air to oxygen supply equipment, air is introduced into the first side pipe orifice of the first ring pipe structure 101, and the air can be naturally sucked by the oxygen supply equipment, so that the first side pipe orifice can be open without connecting an air supply device, and the open part can be horn-shaped, which is favorable for air inlet; oxygen is introduced through the oxygen inlet of the first loop structure 101 and the air and oxygen are mixed in the first loop structure 11 to form a primary oxygen-mixed gas stream.
The oxygen supply equipment includes but is not limited to fans, burners, and the like. In this is novel, the oxygen pressure of oxygen entry input is higher than the air pressure of air entry input, and air pressure can be the negative pressure also can be the malleation, and this device is applicable to low pressure oxygen boosting and high pressure oxygen boosting and mixes.
The device can also be expanded to other gas mixtures, such as oxygen gas mixed into flue gas, and high heating value gas mixed into low heating value gas.
In order to make the oxygen and air mixture more uniform, as an improvement of the technical solution, a plurality of nozzles are connected to the inner side of the oxygen through holes on the inner circumferential wall 1011, and the nozzles are connected in an inclined manner, wherein the inclined direction is from the first side nozzle of the first loop pipe structure 101 to the second side nozzle.
Oxygen is fed into the first circular pipe structure 101 through the plurality of nozzles, so that the impact force of the oxygen can be increased, the oxygen can be mixed with air entering the first circular pipe structure 101 more quickly, in addition, the oxygen can be dispersedly fed into the first circular pipe structure 101, the over-concentration of local oxygen is avoided, the uniform mixing is facilitated, and the premixing effect is enhanced.
The nozzles are inclined at a certain angle towards the airflow direction, so that the fed oxygen can flow along the airflow direction, and the nozzles are prevented from becoming a resistance factor influencing the airflow flow and are used as the power of the airflow flow.
In order to further improve the mixing effect, the nozzles comprise at least one circle of long nozzles 102 and at least one circle of short nozzles 103, and the long nozzles 102 are arranged at a position closer to the first side nozzle opening of the first loop pipe structure 101 than the short nozzles.
The long nozzles 102 and the short nozzles 103 can make the position of the oxygen fed into the first loop structure 101 different, so that the entry point of the oxygen is dispersed, and the uniform mixing is facilitated; moreover, the long nozzle 102 is arranged in front to ensure that the oxygen fed by the long nozzle 102 is not obstructed or affected by the oxygen fed by the short nozzle 103.
Examples 2,
Referring to fig. 1, the embodiment provides an oxygen-rich mixer, based on embodiment 1, the oxygen-rich mixer further includes a second-stage oxygen mixer 2, the second-stage oxygen mixer 2 includes a second loop structure 201 and a conical cap structure 202, an axial first side orifice of the second loop structure 201 is connected with a second side orifice of the first loop structure 101, the conical cap structure 202 is connected in the second loop structure 201 through a support structure 203, a gas flow channel is arranged between an outer side wall of the conical cap structure 202 and an inner wall of the second loop structure 201, a top end of the conical cap structure 202 faces the second side orifice of the first loop structure 101, and an axial second side orifice of the second loop structure 201 is connected with an inlet of an oxygen supply device.
In this embodiment, the primary oxygen-mixed gas flow mixed in the first loop pipe structure 101 enters the second loop pipe structure 201 and impacts the conical cap structure 202, and under the shape of the outer surface of the conical cap 202, the oxygen-mixed gas flow flows through the gas flow channel between the conical cap structure 202 and the second loop pipe structure 201, the gas flow channel is gradually narrowed as the diameter of the conical cap structure 202 is increased, so that the gas flow is gradually squeezed to mix more uniformly and sufficiently, and the safe use of the blast furnace blower is ensured.
Preferably, the conical cap structure 202 is coaxially disposed with the second ring structure 201, and the supporting structure 203 is a plurality of supporting rods.
In order to increase the strength, as an improvement, the primary oxygen mixer 1 and the secondary oxygen mixer 2 are made of stainless steel.
Examples 3,
Referring to fig. 2, the present embodiment provides an oxygen supply system with an oxygen-rich mixer, including the oxygen-rich mixer described in embodiment 1 or embodiment 2, an oxygen pipeline connected to the oxygen inlet, and an oxygen supply apparatus connected to the oxygen-rich mixer outlet, wherein a first manual valve 3, a first pressure sensor 4, an automatic regulating valve 5, an automatic shutoff valve 6, a second manual valve 7, and a second pressure sensor 8 are sequentially disposed on the oxygen pipeline from far to near from the oxygen-rich mixer.
The valves and instrumentation are set up to allow for manual, automatic adjustment or monitoring.
For safety, as an improvement of the technical scheme, a first flame arrester 9 is arranged on a pipeline on one side, close to the oxygen-enriched mixer, of the first manual valve 3, and a second flame arrester 10 is arranged on a pipeline on one side, far away from the oxygen-enriched mixer, of the second manual valve 7.
The flame arrester is of a copper structure, and is connected by flanges or welding, and two ends of the flame arrester are welded by stainless steel when the flame arrester is of a welded structure.
A nitrogen purging pipeline 15 and a replacement blowdown pipeline 16 are also arranged on the oxygen pipeline; on both sides of the first pressure sensor 4, a flow meter 11 and a temperature sensor 12 are provided.
The nitrogen purging pipeline 15 is used for replacing nitrogen in the oxygen pipeline before and after the system is used, so that the protection effect is achieved. The nitrogen charging protection can be carried out in the pipeline in the emergency situation of oxygen emergency cut-off.
In order to determine the oxygen content in the oxygen flow before entering the oxygen supply apparatus, a filter 13 is connected to the air inlet of the primary oxygen mixer 1, and an oxygen analyzer 14 is provided on a pipeline connecting the oxygen-enriched mixer and the oxygen supply apparatus.
The air is filtered through a filter 13 and the oxygen content of the oxygen stream entering the oxygen supply apparatus is analysed by an oxygen analyser 14.
The oxygen-enriched mixer and the oxygen supply system provided in the utility model can be applied to oxygen enrichment of blast furnace combustion-supporting air, oxygen enrichment of sintering combustion-supporting air, and oxygen enrichment of circulating flue gas of a combustion system. The method can also be applied to the mixing of high-calorific-value fuel gas in low-calorific-value gas, the mixing of fuel gas in circulating flue gas and the like.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. The utility model provides a rich oxygen mixer, characterized in that, mix oxygen ware (1) including one-level, one-level mixes oxygen ware (1) and includes first ring canal structure (101), the first side mouth of pipe of first ring canal structure (101) axial is air inlet, first ring canal structure (101) include interior rampart (1011) and outer rampart (1012), be the annular chamber between interior rampart (1011) and the outer rampart (1012), on outer rampart (1012), be equipped with the oxygen entry, be equipped with a plurality of oxygen through-holes on interior rampart (1011), the axial second side mouth of pipe of first ring canal structure (101) is one-level and mixes oxygen gas flow export, the second side mouth of pipe and the oxygen supply equipment entry linkage of first ring canal structure (101).
2. The oxygen-rich mixer according to claim 1, wherein a plurality of nozzles are connected to the inner side of the oxygen through holes on the inner circumferential wall (1011), and the nozzles are connected in an inclined manner from the first side nozzle of the first loop structure (101) to the second side nozzle.
3. The oxygen-rich mixer according to claim 2, wherein the nozzles comprise at least one circle of long nozzles (102) and at least one circle of short nozzles (103), the long nozzles (102) being arranged annularly closer to the first side orifice of the first loop structure (101) than the short nozzles.
4. The oxygen-rich mixer according to claim 1, further comprising a secondary oxygen mixer (2), wherein the secondary oxygen mixer (2) comprises a second loop pipe structure (201) and a conical cap structure (202), an axial first side pipe orifice of the second loop pipe structure (201) is connected with a second side pipe orifice of the first loop pipe structure (101), the conical cap structure (202) is connected in the second loop pipe structure (201) through a support structure (203), a gas flow channel is arranged between an outer side wall of the conical cap structure (202) and an inner wall of the second loop pipe structure (201), a top end of the conical cap structure (202) faces the second side pipe orifice of the first loop pipe structure (101), and an axial second side pipe orifice of the second loop pipe structure (201) is connected with an inlet of an oxygen supply device.
5. The oxygen-rich mixer according to claim 4, wherein the conical cap structure (202) is arranged coaxially with the second ring tube structure (201), the support structure (203) being a plurality of support rods.
6. The oxygen-rich mixer according to claim 4, wherein the primary oxygen mixer (1) and the secondary oxygen mixer (2) are made of stainless steel.
7. An oxygen supply system provided with an oxygen-rich mixer, which is characterized by comprising the oxygen-rich mixer as claimed in claim 1 or 2 or 3 or 4 or 5 or 6, an oxygen pipeline connected to the oxygen inlet, and an oxygen supply device connected with the outlet of the oxygen-rich mixer, wherein a first manual valve (3), a first pressure sensor (4), an automatic regulating valve (5), an automatic cut-off valve (6), a second manual valve (7) and a second pressure sensor (8) are sequentially arranged on the oxygen pipeline from far to near from the oxygen-rich mixer.
8. The oxygen supply system with the oxygen-rich mixer as claimed in claim 7, wherein a first flame arrester (9) is arranged on the pipeline of the first manual valve (3) close to the side of the oxygen-rich mixer, and a second flame arrester (10) is arranged on the pipeline of the second manual valve (7) far away from the side of the oxygen-rich mixer.
9. The oxygen supply system with the oxygen-rich mixer according to claim 7, wherein a nitrogen purge line (15) and a replacement blowdown line (16) are further provided on the oxygen line; and a flowmeter (11) and a temperature sensor (12) are arranged on two sides of the first pressure sensor (4).
10. The oxygen supply system with an oxygen-rich mixer according to claim 7, wherein a filter (13) is connected to an air inlet of the primary oxygen mixer (1), and an oxygen analyzer (14) is provided on a pipeline connecting the oxygen-rich mixer and the oxygen supply apparatus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221322101.7U CN217684981U (en) | 2022-05-30 | 2022-05-30 | Oxygen-rich mixer and oxygen supply system with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221322101.7U CN217684981U (en) | 2022-05-30 | 2022-05-30 | Oxygen-rich mixer and oxygen supply system with same |
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| CN217684981U true CN217684981U (en) | 2022-10-28 |
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| CN202221322101.7U Active CN217684981U (en) | 2022-05-30 | 2022-05-30 | Oxygen-rich mixer and oxygen supply system with same |
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