CN110841500A - Preheating type gas multistage mixing device - Google Patents
Preheating type gas multistage mixing device Download PDFInfo
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- CN110841500A CN110841500A CN201911004597.6A CN201911004597A CN110841500A CN 110841500 A CN110841500 A CN 110841500A CN 201911004597 A CN201911004597 A CN 201911004597A CN 110841500 A CN110841500 A CN 110841500A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
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- 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
- B01F25/421—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 by moving the components in a convoluted or labyrinthine path
- B01F25/423—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 by moving the components in a convoluted or labyrinthine path by means of elements placed in the receptacle for moving or guiding the components
- B01F25/4231—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 by moving the components in a convoluted or labyrinthine path by means of elements placed in the receptacle for moving or guiding the components using baffles
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2111—Flow rate
- B01F35/21111—Mass flow rate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/2132—Concentration, pH, pOH, p(ION) or oxygen-demand
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2215—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/93—Heating or cooling systems arranged inside the receptacle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F2035/99—Heating
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Accessories For Mixers (AREA)
Abstract
The invention discloses a preheating type gas multistage mixing device which comprises a plurality of gas bottles to be mixed, wherein the gas bottles to be mixed are used for containing gas to be mixed; the gas input branches are used for conveying gas to be mixed in the gas cylinder to be mixed; the gas mixing device comprises a multi-stage gas mixing chamber, a gas inlet branch, a gas outlet branch, a gas inlet branch, a gas outlet branch and a gas inlet branch, wherein the multi-stage gas mixing chamber comprises a first-stage mixing chamber, a second-stage mixing chamber, a; and the mixed gas output pipeline is communicated with the tail end of the gas buffering chamber and is used for outputting mixed gas. Reach the purpose of dynamic homogeneous mixing through accurate control, multistage mixture, use safe and reliable, can realize the dynamic homogeneous mixing of multiple gas, improve gaseous mixing uniformity.
Description
Technical Field
The invention relates to the technical field of gas mixing, in particular to a preheating type gas multistage mixing device.
Background
The gas mixing is widely applied in industrial production and scientific research, the mixing uniformity and the mixing precision of the gas have profound influence on the preparation of multi-component mixed gas, the preparation of food packaging gas, the treatment of inflammable and toxic gas in industry and the like, and the gas mixing uniformity has great significance for improving the combustion efficiency of fuel and reducing the emission of pollutants in the premixed combustion of a porous medium burner.
In addition, the combustible gas with high concentration can be changed into the gas with low concentration after being mixed with the air, scholars experts at home and abroad do a great deal of experimental research on the explosion characteristic, the combustion characteristic and the like of the gas with low concentration, the precision and the foundation of the experiments lie in the mixing precision and the mixing uniformity of the test gas, the non-uniform mixing of the gas can bring unstable operation or explosion danger, and a mixing device which is safe, reliable, simple in structure and capable of uniformly mixing different gases is urgently needed in laboratories and industries.
At present, a gas mixing device mostly adopts a conveying pipeline external circulation system or a high-pressure gas cylinder internal stirring system to distribute and mix gas, the former occupies a large area, the mixing device is complex, and great potential safety hazards exist in a laboratory. The latter has uneven gas distribution and mixing, and needs to stand for a long time or roll and shake the high-pressure gas cylinder to obtain even mixed gas, and can not meet the requirement when the standard gas consumption is large.
Disclosure of Invention
The invention aims to provide a preheating type multistage gas mixing device which is simple in structure and convenient to install and can uniformly mix different gases, and the preheating type multistage gas mixing device can be used for overcoming the potential safety hazard of gas mixing of an external circulating system of a conveying pipeline, the problem of insufficient gas mixing uniformity of a stirring system arranged in a high-pressure gas cylinder and the problems of complex structure and poor gas mixing of other gas mixing devices.
In order to achieve the purpose, the invention provides the following technical scheme: a preheated gas multi-stage compounding device comprising:
the gas mixing device comprises a plurality of gas cylinders to be mixed, wherein the gas cylinders to be mixed are used for containing gas to be mixed;
the gas input branches are used for conveying gas to be mixed in the gas cylinder to be mixed;
the gas mixing device comprises a multi-stage gas mixing chamber, a gas inlet branch, a gas outlet branch, a gas inlet branch, a gas outlet branch and a gas inlet branch, wherein the multi-stage gas mixing chamber comprises a first-stage mixing chamber, a second-stage mixing chamber, a;
and the mixed gas output pipeline is communicated with the tail end of the gas buffering chamber and is used for outputting mixed gas.
Further, first order mixing chamber, second level mixing chamber, third mixing chamber set gradually and end to end intercommunication from inside to outside, the inlet end and the plurality of gas input branch road of first order mixing chamber are connected, the end of giving vent to anger of first order mixing chamber with the inlet end intercommunication of second level mixing chamber, the end of giving vent to anger of second mixing chamber with the inlet end intercommunication of third level mixing chamber, the end of giving vent to anger of third level mixing chamber is in with the setting the slow gas chamber intercommunication of first order mixing chamber, second level mixing chamber, third level mixing chamber tail end, it is in to wait to mix its gas diffusion route in first order mixing chamber, second level mixing chamber, the third level mixing chamber is snakelike.
Further, the outside of the buffer chamber is provided with an ultrasonic mixing unit, the ultrasonic mixing unit comprises an ultrasonic vibrator and an ultrasonic generator, the ultrasonic vibrator is fixed at the bottom of the buffer chamber, the ultrasonic generator is connected with the ultrasonic vibrator, and the number of the ultrasonic arrays is 1-6.
Further, a preheating mixing device is arranged in the first-stage mixing chamber and comprises a liquid inlet pipe, a water pump, a heating water tank, a temperature controller, an electric contact thermometer, a liquid outlet pipe and a spiral preheating pipe, the liquid inlet pipe is arranged in the heating water tank, the water pump is installed on the liquid inlet pipe, the other end of the liquid inlet pipe is connected with the spiral preheating pipe, the spiral preheating pipe is arranged in the first-stage mixing chamber, the spiral preheating pipe penetrates through the first-stage mixing chamber and then is connected with the liquid outlet pipe, the tail end of the liquid outlet pipe is arranged in the heating water tank, the electric contact thermometer is further arranged in the heating water tank, the temperature controller is connected with the electric contact thermometer, and the temperature controller controls the heating temperature in the heating water tank according to the temperature measured by the electric contact thermometer.
Furthermore, turbulent flow baffles are arranged in the second-stage mixing chamber, the turbulent flow baffles are arranged in the second-stage mixing chamber in a vertically staggered mode, and the number of the turbulent flow baffles is 6-8.
Further, a porous medium is filled in the third-stage mixing chamber, the type of the porous medium is any one of foamed ceramics, stacked bed balls and wire meshes with different pore sizes, and the porosity is more than 40%.
Further, set gradually relief pressure valve, manometer, stop valve, flowmeter, first check valve on the gas input branch, the flowmeter passes through cable junction mass flow controller.
Further, be equipped with second check valve and gas mixture on the gas mixture output pipeline in proper order and filter the jar, the gas process after the mixture the gas mixture filters and obtains the mist of homogeneous mixing after the jar filters impurity.
Furthermore, a concentration detector is installed in the buffer chamber, detection holes of the concentration detector are formed in the air outlet end of the first-stage mixing chamber, the air outlet end of the second-stage mixing chamber, the air outlet end of the third-stage mixing chamber and the top of the buffer chamber, and a detection tube of the concentration detector can extend to the detection holes to determine concentration surface distribution at different positions.
The ultrasonic generator is characterized by further comprising a control unit, the control unit comprises a terminal control computer, the terminal control computer is respectively connected with the temperature controller, the ultrasonic generator, the concentration detector and the mass flow controller through cables, and the terminal control computer controls and adjusts the temperature value of the temperature controller, the flow ratio of the mass flow controller and the power of the ultrasonic generator.
Compared with the prior art, the invention at least comprises the following beneficial effects: the mass flow ratio of the gas to be mixed, the temperature of water in the spiral preheating pipe and the power of the ultrasonic generating device are controlled through a terminal control computer, so that the multistage mixing is accurately controlled. Hot water is introduced into the first-stage mixing chamber through the liquid inlet of the spiral preheating pipe, the temperature of gas mixing can be improved, the high-temperature spiral preheating pipe can increase the thermal motion of gas molecules, and the collision of the gas molecules can be increased by the spiral preheating pipe, so that the gas mixing is facilitated. The vortex baffle makes the gas after first order mixing unit mixes vortex cutting between the baffle, further increases and mixes the degree of consistency. The porous structure of the porous medium mixing unit increases the collision of gas molecules and is beneficial to uniform gas mixing. The ultrasonic mixing device generates standing waves through the action of ultrasonic waves generated by the ultrasonic vibrator and the top plate of the mixing chamber, and the mixing uniformity of mixed gas in the gas buffering chamber is increased through the standing wave effect.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure:
1-gas cylinder to be mixed, 2-pressure reducing valve, 3-pressure gauge, 4-stop valve, 5-flowmeter, 6-gas input branch, 7-first one-way valve, 8-multistage gas mixing chamber, 9-first stage mixing chamber, 10-spiral preheating pipe, 11-second stage mixing chamber, 12-turbulent baffle, 13-porous medium, 14-third stage mixing chamber, 15-slow gas chamber, 16-concentration detector, 17-mixed gas output pipeline, 18-second one-way valve, 19-mixed gas filtering tank, 20-terminal control computer, 21-ultrasonic vibrator, 22-liquid inlet pipe, 23-liquid outlet pipe, 24-water pump, 25-ultrasonic generator, 26-heating water tank, 27-electric contact thermometer, 28-temperature controller, 29-mass flow controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As shown in fig. 1, an embodiment of the present application provides a preheated gas multi-stage mixing device, including:
the gas mixing device comprises a plurality of gas cylinders 1 to be mixed, wherein the gas cylinders 1 to be mixed are used for containing gas to be mixed;
a plurality of gas input branches 6, wherein the gas input branches 6 are used for conveying gas to be mixed in the gas cylinder 1 to be mixed;
the gas mixing device comprises a multi-stage gas mixing chamber 8, wherein the multi-stage gas mixing chamber 8 comprises a first-stage mixing chamber 9, a second-stage mixing chamber 11, a third-stage mixing chamber 14 and a gas buffering chamber 15 which are sequentially communicated, and the gas bottle 1 to be mixed is respectively communicated with the first-stage mixing chamber 9 through a gas input branch 6;
and the mixed gas output pipeline 17 is communicated with the tail end of the buffer chamber 15 and is used for outputting the mixed gas.
In the above embodiment, the gas to be mixed enters the multistage gas mixing chamber 8 from the gas bottle 1 sequentially through the gas input branch 6, sequentially passes through the first stage mixing chamber 9, the second stage mixing chamber 11 and the third stage mixing chamber 14 in the multistage gas mixing chamber 8, enters the buffer chamber 15, is fully mixed in the first stage mixing chamber 9, the second stage mixing chamber 11 and the third stage mixing chamber 14, enters the buffer chamber 15, and is output through the mixed gas output pipeline 17.
In a further preferred embodiment, the first-stage mixing chamber 9, the second-stage mixing chamber 11 and the third-stage mixing chamber are sequentially arranged from inside to outside and are communicated end to end, the air inlet end of the first-stage mixing chamber 9 is connected with the plurality of air input branches 6, the air outlet end of the first-stage mixing chamber 9 is communicated with the air inlet end of the second-stage mixing chamber 11, the air outlet end of the second-stage mixing chamber is communicated with the air inlet end of the third-stage mixing chamber 14, the air outlet end of the third-stage mixing chamber 14 is communicated with the air buffer chamber 15 arranged at the tail end of the first-stage mixing chamber 9, the second-stage mixing chamber 11 and the third-stage mixing chamber 14, and the diffusion route of the gas to be mixed in the first-stage mixing chamber 9, the second-stage mixing chamber 11 and the third-stage mixing chamber 14 is in a snake shape.
In the above embodiment, first-stage mixing chamber 9, second level mixing chamber 11, third mixing chamber set gradually and end to end from inside to outside for the gas that takes the mixture forms snakelike route when passing through first-stage mixing chamber 9, second level mixing chamber 11, third mixing chamber, can mix more fully evenly.
In a further preferred embodiment, an ultrasonic mixing unit is arranged outside the buffer chamber 15, the ultrasonic mixing unit includes an ultrasonic vibrator 21 and an ultrasonic generator 25, the ultrasonic vibrator 21 is fixed at the bottom of the buffer chamber 15, the ultrasonic generator 25 is connected with the ultrasonic vibrator 21, and the number of the ultrasonic arrays is 1-6.
In the above embodiment, the ultrasonic oscillator is installed at the bottom of the buffer chamber 15, and standing waves are generated by the action of the ultrasonic waves generated by the ultrasonic oscillator 21 and the top plate of the mixing chamber, so that the mixing uniformity of the mixed gas in the buffer chamber 15 is increased by the standing wave effect.
In a further preferred embodiment, a preheating and mixing device is arranged in the first-stage mixing chamber 9, and comprises a liquid inlet pipe 22, a water pump 24, a heating water tank 26, a temperature controller 28, an electric contact thermometer 27, a liquid outlet pipe 23 and a spiral preheating pipe 10, the liquid inlet pipe 22 is disposed in the heating water tank 26, a water pump 24 is installed on the liquid inlet pipe 22, the other end of the liquid inlet pipe 22 is connected with a spiral preheating pipe 10, the spiral preheating pipe 10 is arranged in the first-stage mixing chamber 9, the spiral preheating pipe 10 passes through the first-stage mixing chamber 9 and then is connected with a liquid outlet pipe 23, the tail end of the liquid outlet pipe 23 is arranged in the heating water tank 26, an electric node thermometer is also arranged in the heating water tank 26, the temperature controller 28 is connected with an electric contact thermometer 27, the temperature controller 28 controls the heating temperature in the heating water tank 26 based on the temperature measured by the electric contact thermometer 27.
In the above embodiment, the water pump 24 delivers the hot water in the heating water tank 26 to the spiral preheating pipe 10, the spiral preheating pipe 10 enters the first-stage mixing chamber 9 to increase the temperature of the gas mixture, the spiral preheating pipe 10 with high temperature raises the temperature in the first-stage mixing chamber 9 to increase the thermal movement of molecules, the spiral preheating pipe is arranged in the first-stage mixing chamber 9 to increase the collision of the gas molecules and facilitate the uniform gas mixture, the heating water tank 26 is provided with the electrical junction thermometer, and the temperature controller 28 is connected with the electrical junction thermometer 27 for controlling the heating temperature in the electric heating water tank.
In a further preferred embodiment, the second-stage mixing chamber 11 is provided with baffle plates 12, the baffle plates 12 are staggered up and down in the second-stage mixing chamber 11, and the number of the baffle plates 12 is 6-8.
In the above embodiment, the vortex partition plate 12 cuts the vortex of the gas mixed by the first-stage mixing unit between the partition plates, so as to further increase the mixing uniformity, the vortex partition plate 12 is arranged in a staggered manner, and the vortex of the gas mixed by the first-stage mixing unit between the partition plates can be further increased when the gas passes through the second-stage mixing chamber 11.
In a further preferred embodiment, the third-stage mixing chamber 14 is filled with a porous medium 13, the porous medium 13 is any one of foamed ceramics, stacked bed balls and wire mesh with different pore sizes, and the porosity is more than 40%.
In the above embodiment, the gas mixed in the second-stage mixing chamber 11 passes through the porous medium 13 in the third-stage mixing chamber 14, on one hand, the diffusion speed of the gas molecules can be slowed down, so that the mixed gas is uniformly mixed, on the other hand, when the mixed gas passes through the porous medium 13, the collision among the gas molecules is increased by the porous structure of the porous medium 13, so as to facilitate the uniform mixing of the gas.
In a further preferred embodiment, the gas input branch 6 is sequentially provided with a pressure reducing valve 2, a pressure gauge 3, a stop valve 4, a flow meter 5 and a first one-way valve 7, and the flow meter 5 is connected with a mass flow controller 29 through a cable.
In the above embodiment, the flow meter 5 is a mass flow meter of D07 series, and is connected to the mass flow controller 29 of D08 series through a cable, the pressure gauge 3 is provided on the gas input branch 6, and the pressure reducing valve 2, the stop valve 4, and the flow meter 5 can monitor and adjust the mixture ratio among the mixed gases in real time.
In a further preferred embodiment, a second one-way valve 18 and a mixed gas filtering tank 19 are sequentially arranged on the mixed gas output pipeline 17, and the mixed gas is filtered to remove impurities through the mixed gas filtering tank 19 to obtain a uniformly mixed gas.
In a further preferred embodiment, a concentration detector 16 is installed in the buffer chamber 15, detection holes of the concentration detector 16 are disposed at the air outlet end of the first-stage mixing chamber, the air outlet end of the second-stage mixing chamber, the air outlet end of the third-stage mixing chamber, and the top of the buffer chamber, and a detection tube of the concentration detector can extend into each detection hole to determine concentration surface distribution at different positions.
In the above embodiment, the position and height of the detection tube are adjusted to determine the concentration surface distribution at different positions, the concentration detector detects concentration values at different positions and sends the concentration values to the central control computer for analysis, and when the distribution uniformity index of the detected concentration values does not reach the preset uniformity index, the central control computer controls the gas mixing process by adjusting the temperature of the temperature controller, the flow ratio of the mass flow controller and the power of the ultrasonic generator, so that the gas mixing intensity is increased, and the intelligent control of the gas mixing uniformity is realized.
In a further preferred embodiment, the ultrasonic monitoring device further comprises a control unit, the control unit comprises a terminal control computer 20, the terminal control computer 20 is respectively connected with the temperature controller 28, the ultrasonic generator 25, the concentration detector 16 and the mass flow controller 29 through cables, and the terminal control computer 20 controls and adjusts the temperature value of the temperature controller 28, the flow ratio of the mass flow controller 29 and the power of the ultrasonic generating device.
The working principle of the structure is as follows: taking the mixing of two gases as an example, the two gases to be mixed enter the multi-stage gas mixing chamber 8 through the gas input branch 6 in a certain proportion and are mixed through the precise control of the mass flow controller 29 and the flowmeter 5. After entering the first-stage mixing chamber 9, the gas molecules are enhanced by the preheating and mixing action of the spiral preheating and mixing unit, the mixed gas enters the upper cavity and the lower cavity of the second-stage mixing chamber 11 respectively, and is continuously mixed under the action of the turbulence partition plate 12, the gas mixed by the upper cavity and the lower cavity of the second-stage mixing chamber 11 enters the upper cavity and the lower cavity of the third mixing chamber respectively, and is mixed under the blocking action of the porous medium 13 mixing unit in the third mixing chamber. The mixed gas is mixed by the third mixing chamber and then is converged into the gas-buffering chamber 15 from the upper and lower chambers of the third-stage mixing chamber 14, is fully and uniformly mixed under the action of the ultrasonic mixing device in the gas-buffering chamber 15, finally flows out from the gas output pipeline, and is filtered by the mixed gas filtering tank 19 to obtain uniformly mixed gas, so that the dynamic uniform gas mixing process is completed.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.
Claims (10)
1. A preheating type gas multistage mixing device is characterized by comprising:
the gas mixing device comprises a plurality of gas cylinders to be mixed, wherein the gas cylinders to be mixed are used for containing gas to be mixed;
the gas input branches are used for conveying gas to be mixed in the gas cylinder to be mixed;
the gas mixing device comprises a multi-stage gas mixing chamber, a gas inlet branch, a gas outlet branch, a gas inlet branch, a gas outlet branch and a gas inlet branch, wherein the multi-stage gas mixing chamber comprises a first-stage mixing chamber, a second-stage mixing chamber, a;
and the mixed gas output pipeline is communicated with the tail end of the gas buffering chamber and is used for outputting mixed gas.
2. The multi-stage pre-heated gas mixing plant of claim 1, wherein: first order mixing chamber, second level mixing chamber, third mixing chamber set gradually and end to end intercommunication from inside to outside, the inlet end and a plurality of gas input branch road of first order mixing chamber are connected, the end of giving vent to anger of first order mixing chamber with the inlet end intercommunication of second level mixing chamber, the end of giving vent to anger of second mixing chamber with the inlet end intercommunication of third level mixing chamber, the end of giving vent to anger of third level mixing chamber is in with the setting the slow gas room intercommunication of first order mixing chamber, second level mixing chamber, third level mixing chamber tail end, treat to mix its gas and be in diffusion route in first order mixing chamber, second level mixing chamber, the third level mixing chamber is snakelike.
3. The multi-stage pre-heated gas mixing plant of claim 1, wherein: the ultrasonic wave mixing unit is arranged outside the buffer chamber and comprises an ultrasonic wave vibrator and an ultrasonic wave generator, the ultrasonic wave vibrator is fixed to the bottom of the buffer chamber, the ultrasonic wave generator is connected with the ultrasonic wave vibrator, and the number of the ultrasonic wave arrays is 1-6.
4. The multi-stage pre-heated gas mixing plant of claim 1, wherein: the preheating and mixing device comprises a liquid inlet pipe, a water pump, a heating water tank, a temperature controller, an electric contact thermometer, a liquid outlet pipe and a spiral preheating pipe, wherein the liquid inlet pipe is arranged in the heating water tank, the water pump is installed on the liquid inlet pipe, the other end of the liquid inlet pipe is connected with the spiral preheating pipe, the spiral preheating pipe is arranged in the first-stage mixing chamber, the spiral preheating pipe penetrates through the first-stage mixing chamber and then is connected with the liquid outlet pipe, the tail end of the liquid outlet pipe is arranged in the heating water tank, the electric contact thermometer is further arranged in the heating water tank, the temperature controller is connected with the electric contact thermometer, and the temperature controller controls the heating temperature in the heating water tank according to the temperature measured by the electric contact thermometer.
5. The multi-stage pre-heated gas mixing plant of claim 1, wherein: and turbulent flow baffles are arranged in the second-stage mixing chamber, the turbulent flow baffles are arranged in the second-stage mixing chamber in a vertically staggered manner, and the number of the turbulent flow baffles is 6-8.
6. The multi-stage pre-heated gas mixing plant of claim 1, wherein: and a porous medium is filled in the third-stage mixing chamber, the type of the porous medium is any one of foamed ceramics, stacked bed balls and wire meshes with different pore sizes, and the porosity is more than 40%.
7. The multi-stage pre-heated gas mixing plant of claim 1, wherein: the gas input branch is sequentially provided with a pressure reducing valve, a pressure gauge, a stop valve, a flowmeter and a first one-way valve, and the flowmeter is connected with a mass flow controller through a cable.
8. The multi-stage pre-heated gas mixing plant of claim 1, wherein: the mixed gas output pipeline is sequentially provided with a second one-way valve and a mixed gas filtering tank, and the mixed gas passes through the mixed gas filtering tank to filter impurities to obtain uniformly mixed gas.
9. The multi-stage pre-heated gas mixing plant of claim 1, wherein: the concentration detector is arranged in the buffer chamber, detection holes of the concentration detector are formed in the air outlet end of the first-stage mixing chamber, the air outlet end of the second-stage mixing chamber, the air outlet end of the third-stage mixing chamber and the top of the buffer chamber, and detection tubes of the concentration detector can extend to the detection holes to determine concentration surface distribution of different positions.
10. A preheated gas multi-stage mixing unit as set forth in claim 1, wherein: the ultrasonic generator is characterized by further comprising a control unit, the control unit comprises a terminal control computer, the terminal control computer is respectively connected with the temperature controller, the ultrasonic generator, the concentration detector and the mass flow controller through cables, and the terminal control computer controls and adjusts the temperature value of the temperature controller, the flow ratio of the mass flow controller and the power of the ultrasonic generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048795A (en) * | 2021-03-11 | 2021-06-29 | 上海沃服工程有限公司 | Energy-saving industrial furnace fuel control valve and working method thereof |
| CN113600078A (en) * | 2021-07-23 | 2021-11-05 | 北京百瑞盛田环保科技发展有限公司 | Multistage medicine mixing control method and device |
| CN114321703A (en) * | 2021-10-12 | 2022-04-12 | 广东电网有限责任公司电力科学研究院 | Online air supplement unit of insulating mist for environment-friendly gas-insulated transformer |
| CN116559416A (en) * | 2023-07-11 | 2023-08-08 | 中国农业大学 | Energy metabolism system of human body energy metabolism bin and energy detection method |
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2019
- 2019-10-22 CN CN201911004597.6A patent/CN110841500A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048795A (en) * | 2021-03-11 | 2021-06-29 | 上海沃服工程有限公司 | Energy-saving industrial furnace fuel control valve and working method thereof |
| CN113600078A (en) * | 2021-07-23 | 2021-11-05 | 北京百瑞盛田环保科技发展有限公司 | Multistage medicine mixing control method and device |
| CN113600078B (en) * | 2021-07-23 | 2024-02-02 | 北京百瑞盛田环保科技发展有限公司 | Multistage medicine mixing control method and device |
| CN114321703A (en) * | 2021-10-12 | 2022-04-12 | 广东电网有限责任公司电力科学研究院 | Online air supplement unit of insulating mist for environment-friendly gas-insulated transformer |
| CN116559416A (en) * | 2023-07-11 | 2023-08-08 | 中国农业大学 | Energy metabolism system of human body energy metabolism bin and energy detection method |
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