CN115025655B - Double-end-plugging type S-shaped oxygen mixing pipe and production method thereof - Google Patents
Double-end-plugging type S-shaped oxygen mixing pipe and production method thereof Download PDFInfo
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- CN115025655B CN115025655B CN202210212806.1A CN202210212806A CN115025655B CN 115025655 B CN115025655 B CN 115025655B CN 202210212806 A CN202210212806 A CN 202210212806A CN 115025655 B CN115025655 B CN 115025655B
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- 238000002156 mixing Methods 0.000 title claims abstract description 34
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000001301 oxygen Substances 0.000 title claims abstract description 32
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000005452 bending Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 3
- 239000004831 Hot glue Substances 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims description 3
- 239000012790 adhesive layer Substances 0.000 claims description 3
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 16
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 238000004513 sizing Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000005789 organism growth Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
- B01F25/4331—Mixers with bended, curved, coiled, wounded mixing tubes or comprising elements for bending the flow
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
Abstract
The invention discloses a double-end plug type S-shaped oxygen mixing pipe and a production method thereof, relating to the technical field of oxygen generating devices; comprises a pipe body, a first plug and a second plug; the pipe comprises a pipe body, and is characterized in that one end of the pipe body is provided with a first plug, the other end of the pipe body is provided with a second plug, the upper end of one side of the pipe body is provided with a half-circle air flow inlet which is arranged around the axis of the pipe body, and the opening of the air flow inlet faces the axis of the pipe body; the lower end of the other side of the pipe body is provided with a half-circle airflow outlet which is arranged around the axis of the pipe body, and the opening of the airflow outlet faces the axis of the pipe body; a flow cavity is arranged in the pipe body, and the air flow inlet, the air flow outlet and the flow cavity form an S-shaped mixing cavity; the pipe body is a high-pressure pipe body. The structure of the invention can effectively improve the uniformity degree of the diversion and diffusion of the compressed gas. Thereby improving the processing capacity of the equipment applying the device and prolonging the service cycle of the equipment.
Description
Technical Field
The invention relates to the technical field of oxygen generating devices, in particular to a double-end blocking type S-shaped oxygen mixing tube and a production method thereof.
Background
The oxygenerator is a kind of machine for preparing oxygen, and its principle is that air is first compressed in high density and then separated into gas and liquid at certain temperature by utilizing the difference of condensation points of all components in air, and then further rectified.
The oxygenerator is characterized in that oxygen uptake directly improves arterial blood oxygen content, rather than indirectly improving hypoxia by acting on a certain part of the body, and only continuously intaking oxygen after increasing organism growth, and an oxygen mixing tube is needed in the use process of the oxygenerator;
1. The traditional mixing tube has fixed length when in use and cannot be adjusted, and has certain limitation when in use, so the pipeline interface connecting device of the oxygenerator is provided to solve the problems.
2. The oxygen mixing efficiency of the conventional mixing tube is poor; and the structure is relatively complex.
Disclosure of Invention
The invention aims to provide a double-end blocking type S-shaped oxygen mixing pipe and a production method thereof, which are used for solving the technical problems.
A double-end plug type S-shaped oxygen mixing tube comprises a tube body, a first plug and a second plug;
The pipe comprises a pipe body, and is characterized in that one end of the pipe body is provided with a first plug, the other end of the pipe body is provided with a second plug, the upper end of one side of the pipe body is provided with a half-circle air flow inlet which is arranged around the axis of the pipe body, and the opening of the air flow inlet faces the axis of the pipe body;
The lower end of the other side of the pipe body is provided with a half-circle airflow outlet which is arranged around the axis of the pipe body, and the opening of the airflow outlet faces the axis of the pipe body;
a flow cavity is arranged in the pipe body, and the air flow inlet, the air flow outlet and the flow cavity form an S-shaped mixing cavity; the pipe body is a high-pressure pipe body.
As a further preferable mode, the pipe body is formed by winding and buckling metal sheets, and the pipe body is provided with a protrusion and a groove which are mutually locked at the edge collecting position.
Preferably, the air inlet and the air outlet include two inner wall surfaces parallel to each other, and the inner wall surfaces are perpendicular to the axis of the pipe body.
As a further preferred aspect, in order to better achieve the effect of the mixing tube, the tube body needs n air flow inlets and air flow outlets by controlling the pore sizes of the air flow inlets and the air flow outlets, the diameter of the tube body is D, and then the pore sizes of the air flow inlets and the air flow outlets are defined as D1 according to d1=d/n 1.5, and the n air flow inlets and the n air flow outlets need according to the nature and the flow rate of the mixed fluid.
As a further preference, the S-shaped mixing chamber is provided with an upper curved section, a direct current section and a lower curved section, the curvature of the upper curved section being greater than 90 °, the curvature of the lower curved section being greater than 90 °.
As a further preferable mode, the high-pressure pipe body is composed of a high-temperature-resistant high-pressure-resistant layer, an adhesive layer, a modified glass fiber reinforcing layer, an EVOH oxygen-resistant layer and a PERT outer pipe from the inner layer to the outer layer, and the five layers of materials are adhered through hot melt adhesives.
As a further preference, the upper curved section is the same as the lower curvature.
A production method of a plug type S-shaped oxygen mixing tube is used for producing the double-end plug type S-shaped oxygen mixing tube and comprises the following steps:
step S1: making a tube, namely sequentially smelting and forging the metal alloy to obtain a primary tube blank;
Step S2: heating the annular furnace, namely placing the tube blank in the annular furnace, and heating for 5-6 hours in a sectional mode, and keeping the micro-oxidizing atmosphere in the annular furnace to avoid sucking hydrogen in the heating process; obtaining the intermediate tube blank
Step S4: carrying out thermal perforation on the intermediate tube blank to obtain a flow cavity;
step S5: the upper end of one side of the middle tube blank is provided with an air outlet by a perforating machine, and the upper end of the other side of the middle tube blank is provided with an air outlet to primary product tube body by the perforating machine; providing proper cooling water in the process of obtaining an air flow inlet and an air flow outlet, and controlling the temperature of the blank to be 920-1020 ℃; meanwhile, the total diameter reduction rate is controlled to be 9-13%, the top front reduction rate is controlled to be 2.8-6%, and the ellipticity coefficient is controlled to be 1.16-1.22;
step S6: carrying out solution heat treatment on the primary product pipe body;
Step S7: the upper end of the primary product pipe body subjected to solution heat treatment is connected with a first plug through means such as welding, and the lower end of the primary product pipe body is connected with a second plug through means such as welding.
As a further preferred aspect, the step S6 further includes a step a: the step A is sizing, the finished product pierced billet heated in the step E is immediately placed into a micro-tension reducing mill for sizing, then is uniformly cooled on a cooling bed, and the full-length curvature is controlled within 1.5 per mill, so that a finished product light pipe, namely the titanium alloy seamless pipe is obtained; meanwhile, the cooling water quantity is reduced to one fifth of the normal level so as to ensure uniform temperature in the sizing process.
The technical scheme has the following advantages or beneficial effects:
(1) According to the invention, the uniformity of diversion and diffusion of the compressed gas can be effectively improved. Thereby improving the processing capacity of the equipment applying the device, prolonging the service cycle of the equipment, for example, improving the utilization rate of the drier, improving the gas production of the nitrogen generator and the oxygen generator, and the like.
(2) In the invention, the pipe body of the double-end plug type S-shaped oxygen mixing pipe is a high-pressure pipe body, and the high-pressure pipe body has good pressure resistance so as to improve the use safety and service life of the pipeline.
(3) According to the invention, the upper bending section and the lower bending section are adjusted according to the use requirement, so that the air flow rotating effect of different degrees is realized, the optimal matching effect of rotational flow and oxygen is achieved, the oxygen decomposition rate is accelerated, and the distribution uniformity of oxygen is improved.
(4) In the invention, the increase of the air flow speed in the mixing pipe is realized by controlling the apertures of the air flow inlet and the air flow outlet, the turbulence effect is accelerated, and the oxygen decomposition rate is improved.
Drawings
Figure 1 is a front view of the collapsible pontoon of the invention.
In the figure: 1. a tube body; 2. a first plug; 3. a second plug; 4. an air flow outlet; 5. an air flow inlet; 6. an S-shaped mixing chamber.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
As shown in connection with fig. 1, includes.
The embodiment relates to a double-end plug type S-shaped oxygen mixing pipe, which comprises a pipe body 1, a first plug 2 and a second plug 3;
One end of the pipe body 1 is provided with a first plug 2, the other end of the pipe body 1 is provided with a second plug 3, the upper end of one side of the pipe body 1 is provided with a half-circle air inlet 5 which is arranged around the axis of the pipe body 1, and the opening of the air inlet 5 faces the axis of the pipe body 1;
the lower end of the other side of the pipe body 1 is provided with a half circle of air flow outlet 4 which is arranged around the axis of the pipe body 1, and the opening of the air flow outlet 4 faces the axis of the pipe body 1;
A flow cavity is arranged in the pipe body 1, and an air flow inlet 5, an air flow outlet 4 and the flow cavity form an S-shaped mixing cavity 6; the pipe body 1 is a high-pressure pipe body 1.
Further, as a preferred embodiment, the pipe body 1 is formed by winding and fastening metal sheets, and the pipe body 1 is provided with a protrusion and a groove which are mutually locked at the edge.
Further, as a preferred embodiment, the air inlet 5 and the air outlet 4 include two inner wall surfaces parallel to each other, which are perpendicular to the axial center of the tube body 1.
Further, as a preferred embodiment, in order to better realize the function of the mixing tube, by controlling the pore sizes of the air inlet 5 and the air outlet 4, the n air inlets 5 and the air outlets 4 are required for the tube body 1, the length of the tube body 1 is D, then the pore sizes of the air inlet 5 and the air outlet 4 are defined as D1 according to d1=d/n 1.5, and the n air inlets 5 and the n air outlets 4 are required according to the property and the flow of the mixed fluid.
Wherein the number of air inlets 5 and air outlets 4 may be different
Further, as a preferred embodiment, the S-shaped mixing chamber 6 is provided with an upper curved section, a direct current section and a lower curved section, the curvature of the upper curved section being greater than 90 °, and the curvature of the lower curved section being greater than 90 °.
Further, as a preferred embodiment, the high-pressure pipe body 1 is composed of a high-temperature-resistant and high-pressure-resistant layer, an adhesive layer, a modified glass fiber reinforced layer, an EVOH oxygen barrier layer and a PERT outer pipe from the inner layer to the outer layer, and the five layers of materials are adhered by hot melt adhesives.
Further, as a preferred embodiment, the upper curved section is the same as the lower curvature.
Further, as a preferred embodiment, the second frame includes a third frame and a fourth frame, a third connection block is provided between the third frame and the fourth frame, and the third frame and the fourth frame are rotatably connected through the third connection block.
A production method of a plug type S-shaped oxygen mixing pipe is used for producing the double-end plug type S-shaped oxygen mixing pipe, and comprises the following steps of
Step S1: making a tube, namely sequentially smelting and forging the metal alloy to obtain a primary tube blank;
Step S2: heating the annular furnace, namely placing the tube blank in the annular furnace, and heating for 5-6 hours in a sectional mode, and keeping the micro-oxidizing atmosphere in the annular furnace to avoid sucking hydrogen in the heating process; obtaining the intermediate tube blank
Step S4: carrying out thermal perforation on the middle tube blank to obtain a flow cavity;
Step S5: the upper end of one side of the middle tube blank is provided with an air outlet 4 by a perforating machine, and the upper end of the other side of the middle tube blank is provided with an air outlet 5 by the perforating machine to the primary product tube body 1; providing proper cooling water in the process of obtaining an air flow inlet 5 and an air flow outlet 4, and controlling the temperature of the blank to be 920-1020 ℃; meanwhile, the total diameter reduction rate is controlled to be 9-13%, the top front reduction rate is controlled to be 2.8-6%, and the ellipticity coefficient is controlled to be 1.16-1.22;
Step S6: carrying out solution heat treatment on the primary product pipe body 1;
Step S7: the upper end of the primary product pipe body 1 subjected to solution heat treatment is connected with a first plug 2 by means of welding and the like, and the lower end of the primary product pipe body 1 is connected with a second plug 3 by means of welding and the like.
Further, as a preferred embodiment, step S6 further includes step a: step A, sizing, namely immediately placing the finished product pierced billet heated in the step E into a micro-tension reducing mill for sizing, then uniformly cooling on a cooling bed, and controlling the bending degree of the whole length to be within 1.5 per mill to obtain a finished product light pipe, namely the titanium alloy seamless pipe; meanwhile, the cooling water quantity is reduced to one fifth of the normal level so as to ensure uniform temperature in the sizing process.
In the first embodiment, when the number of 1 air inlet 5 and air outlet 4, n required for the pipe body 1 is 2, the diameter of the pipe body 1 is D, then the aperture of the air inlet 5 and air outlet 4 is defined as D1 according to d1=d/n 1.5, and 1 air inlet 5 and air outlet 4 are required for each of the air inlets 5 and air outlets 4 according to the nature and flow rate of the mixed fluid, which is that the diameter of the hole is n1.5=3.5, and when the diameter of the pipe body 1 is 10 cm, the aperture of the air inlet 5 and air outlet 4 is d1=2.8. When the mixed gas enters the flow chamber from the gas flow inlet 5 with the aperture of 2.8 cm, the mixed gas is discharged from the flow chamber from the gas flow outlet 4 with the aperture of 2.8 cm.
In the second embodiment, the number of 2 air inlets 5 and air outlets 4, n required for the tube body 1 is 2, the diameter of the tube body 1 is D, then the aperture of the air inlets 5 and the air outlets 4 is defined as D1 according to d1=d/n 1.5, 2 air inlets 5 and air outlets 4 are required according to the nature and flow rate of the mixed fluid, the diameter of the holes is n1.5=8, and when the diameter of the tube body 1 is 20 cm, the aperture of the air inlets 5 and the air outlets 4 is d1=2.5. When the mixed gas enters the flow chamber from the gas flow inlet 5 with the aperture of 2.5 cm, the mixed gas is discharged from the flow chamber from the gas flow outlet 4 with the aperture of 2.5 cm.
By controlling the apertures of the air inlet 5 and the air outlet 4, the increase of the air flow speed in the mixing pipe is realized, the turbulent flow effect is accelerated, and the oxygen decomposition rate is improved
In the third embodiment, the tube body 1 of the mixing tube is a detachable structure; the edge folding device comprises a first joint part and a second joint part mutually locked with the first joint part, and the edge folding part is positioned at the junction of the first joint part and the second joint part. The bulges comprise a plurality of first bulges arranged on the first joint part and a plurality of second bulges arranged on the second joint part; the grooves include a plurality of first grooves alternating with the plurality of first protrusions and a plurality of second grooves alternating with the plurality of second protrusions. The first protrusions are buckled in the corresponding second grooves, and the second protrusions are buckled in the corresponding first grooves.
Preferably, the first projection and the second projection are each provided with an enlarged portion at their ends.
Embodiment four: compressed gas is led into the pipe body 1 from the air flow inlet 5 of the pipe body 1, and gradually enters the pipe body 1 due to the guiding effect of the compressed gas through the air flow inlet 5, so that the mixing effect is good, and the uniformity is high; the pipe body 1 adopts a conical structure, and the inner cavity of the pipe wall of the pipe body 1 is of a gradual reduction structure, so that the compressed gas is ensured to increase the leading-in pressure of the compressed gas, and the mixing effect is further improved.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included in the scope of the present invention.
Claims (1)
1. The production method of the plug type S-shaped oxygen mixing pipe is used for producing the double-end plug type S-shaped oxygen mixing pipe and is characterized in that the double-end plug type S-shaped oxygen mixing pipe comprises a pipe body (1), a first plug (2) and a second plug (3);
One end of the pipe body (1) is provided with the first plug (2), the other end of the pipe body (1) is provided with the second plug (3), the upper end of one side of the pipe body (1) is provided with a half-circle airflow inlet (5) which is arranged around the axis of the pipe body (1), and the opening of the airflow inlet (5) faces the axis of the pipe body (1);
The lower end of the other side of the pipe body (1) is provided with a half-circle air flow outlet (4) which is arranged around the axis of the pipe body (1), and the opening of the air flow outlet (4) faces the axis of the pipe body (1); a flow cavity is arranged in the pipe body (1), and the air flow inlet (5), the air flow outlet (4) and the flow cavity form an S-shaped mixing cavity (6); the pipe body (1) is a high-pressure pipe body (1); the pipe body (1) is formed by winding and buckling metal sheets, and the pipe body (1) is provided with a protrusion and a groove which are mutually locked at the edge folding position; the air flow inlet (5) and the air flow outlet (4) comprise two mutually parallel inner wall surfaces which are perpendicular to the axis of the pipe body (1); the diameter of the pipe body (1) is D, then the aperture of the air flow inlet (5) and the aperture of the air flow outlet (4) are defined as D1 according to D1=D/n 1.5, and the number of the air flow inlets (5) and the number of the air flow outlets (4) are n according to the nature and the flow of mixed fluid; the S-shaped mixing cavity (6) is provided with an upper bending section, a direct current section and a lower bending section, wherein the bending degree of the upper bending section is larger than 90 degrees, and the bending degree of the lower bending section is larger than 90 degrees; the high-pressure pipe body (1) consists of a high-temperature-resistant high-pressure-resistant layer, an adhesive layer, a modified glass fiber reinforcing layer, an EVOH oxygen-resistant layer and a PERT outer pipe from an inner layer to an outer layer, and five layers of materials are adhered through hot melt adhesives; the upper bending section is identical to the lower bending section;
the production method comprises the following steps:
step S1: making a tube, namely sequentially smelting and forging the metal alloy to obtain a primary tube blank;
Step S2: heating the annular furnace, placing the tube blank in the annular furnace, heating for 5-6 hours in a sectional mode, keeping micro-oxidizing atmosphere in the annular furnace, and avoiding sucking hydrogen in the heating process to obtain an intermediate tube blank;
step S4: carrying out thermal perforation on the intermediate tube blank to obtain a flow cavity;
Step S5: an air outlet (4) is formed in the upper end of one side of the middle tube blank by using a perforating machine, and an air outlet (5) is formed in the upper end of the other side of the middle tube blank by using the perforating machine to obtain a primary product tube body (1); providing proper cooling water in the process of obtaining an air flow inlet (5) and an air flow outlet (4), and controlling the temperature of the blank to be 920-1020 ℃; meanwhile, the total diameter reduction rate is controlled to be 9-13%, the top front reduction rate is controlled to be 2.8-6%, and the ellipticity coefficient is controlled to be 1.16-1.22;
step S6: carrying out solution heat treatment on the primary product pipe body (1);
step S7: the upper end of the primary product pipe body (1) subjected to solution heat treatment is connected with a first plug (2) through welding, and the lower end of the primary product pipe body (1) is connected with a second plug (3) through welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210212806.1A CN115025655B (en) | 2022-03-02 | 2022-03-02 | Double-end-plugging type S-shaped oxygen mixing pipe and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210212806.1A CN115025655B (en) | 2022-03-02 | 2022-03-02 | Double-end-plugging type S-shaped oxygen mixing pipe and production method thereof |
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| Publication Number | Publication Date |
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| CN115025655A CN115025655A (en) | 2022-09-09 |
| CN115025655B true CN115025655B (en) | 2024-05-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI459981B (en) * | 2012-04-09 | 2014-11-11 | Galemed Corp | Air intake device |
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2022
- 2022-03-02 CN CN202210212806.1A patent/CN115025655B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8834016B1 (en) * | 2011-04-27 | 2014-09-16 | Tetra Technologies, Inc. | Multi chamber mixing manifold |
| CN204093330U (en) * | 2014-08-27 | 2015-01-14 | 苏州清然环保科技有限公司 | Blender and mixing arrangement |
| CN209530578U (en) * | 2019-01-31 | 2019-10-25 | 大冶有色金属有限责任公司 | A kind of flue gas mixed processing device |
| CN111648845A (en) * | 2020-06-22 | 2020-09-11 | 无锡威孚力达催化净化器有限责任公司 | Spiral slice type urea mixing device |
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| CN115025655A (en) | 2022-09-09 |
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