CN117919977B - Gas mixing device - Google Patents
Gas mixing device Download PDFInfo
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- CN117919977B CN117919977B CN202410317626.9A CN202410317626A CN117919977B CN 117919977 B CN117919977 B CN 117919977B CN 202410317626 A CN202410317626 A CN 202410317626A CN 117919977 B CN117919977 B CN 117919977B
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- gas
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- air inlet
- guide ring
- rotating block
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- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000009471 action Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 140
- 239000002912 waste gas Substances 0.000 abstract description 24
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 13
- 239000001301 oxygen Substances 0.000 abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 abstract description 13
- 230000008859 change Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Abstract
The invention relates to the field of gas mixing, in particular to a gas mixing device, which comprises a rotating block, wherein the rotating block is rotatably arranged at the central position of a gas receiving seat, an air inlet channel is formed on the rotating block, a gas pipe communicated with the air inlet channel is fixedly communicated with the rotating block, an abutting pipe is sleeved on the gas pipe in a sliding way, a containing cavity for installing the rotating block is formed on the gas receiving seat, a guide ring groove is formed in the side wall of the containing cavity, and the guide ring groove is arranged in a cam shape; the abutting pipe is in sliding abutting connection with the guide ring groove along with rotation of the rotating block, a gas transmission channel is formed in the gas receiving seat, one end of the gas transmission channel is communicated with the near center point of the guide ring groove, and the other end of the gas transmission channel is communicated with the inside of the exhaust pipe. The invention has the effect of reducing the probability of overflow of mixed oxygen and ozone or incomplete waste gas treatment caused by waste gas flow change.
Description
Technical Field
The invention relates to the field of gas mixing, in particular to a gas mixing device.
Background
The gas mixing has wide application fields in the chemical industry, such as mixing oxygen and gas fuel, mixing nitrogen and hydrogen for synthesizing ammonia, heat treating metal by adjusting the proportion of each component of the gas, and mixing oxygen and ozone for treating waste gas. For example, in the process of mixing oxygen and ozone to treat organic waste gas, controlling the mixing ratio of oxygen and ozone and mixing the mixed gas of oxygen and ozone with waste gas are very critical steps.
In the process of controlling the mixing proportion, the flow of various gases is detected and regulated by a flowmeter or a mass flow controller, so that the concentration of ozone in the mixed gas is ensured to be between 0.1 and 1 percent, then the two gases are introduced into a mixing chamber for mixing, and finally the concentration of ozone in the mixed gas output by the mixing chamber is ensured to be between 0.1 and 1 percent by monitoring the mixed gas output by the mixing chamber in real time.
In the reaction process, the output mixed gas is slowly conveyed to the waste gas to be treated, so that the mixed gas can fully react with the waste gas to be treated, and the treated waste gas can be discharged after final detection reaches the discharge standard.
In the related art, the flow rate of the organic waste gas is greatly changed, and when the flow rate of the waste gas is detected to be changed by the flowmeter, the flow rates of the oxygen and the ozone are changed along with the change, but the flow rate change of the oxygen and the ozone still has certain hysteresis relative to the flow rate change of the waste gas, and overflow of partial mixed gas of the oxygen and the ozone or incomplete treatment of the waste gas can occur.
Disclosure of Invention
In order to solve the above-mentioned part or all of the technical problems, the invention provides a gas mixing device, which can change the flow of the mixed gas output of oxygen and ozone when the flow of exhaust gas changes, and reduce the probability of overflow or incomplete exhaust gas treatment of the mixed oxygen and ozone.
The invention provides a gas mixing device which adopts the following technical scheme:
A gas mixing device comprising an exhaust pipe for providing a gas inlet pipe and for outputting a mixed gas, a gas receiving seat arranged between the exhaust pipe and the inlet pipe; the rotary block is rotatably arranged at the central position of the gas receiving seat, an air inlet channel capable of receiving air input by the air inlet pipe along with the rotation of the rotary block is formed in the rotary block, an air pipe communicated with the air inlet channel is fixedly communicated with the rotary block, an abutting pipe is sleeved on the air pipe in a sliding manner, a containing cavity for installing the rotary block is formed in the gas receiving seat, a guide ring groove is formed in the side wall of the containing cavity, and the guide ring groove is arranged in a cam shape; the support pipe is in sliding support connection with the guide ring groove along with the rotation of the rotating block, a gas transmission channel is formed in the gas receiving seat, one end of the gas transmission channel is communicated with the near center point of the guide ring groove, and the other end of the gas transmission channel is communicated with the inside of the exhaust pipe.
Through adopting above-mentioned technical scheme, the rotation of rotating block can drive the butt pipe and slide to gas extraction in the intake pipe is to gas-supply pipe and butt pipe inside to premix, and when butt pipe rotates to with the inside intercommunication of blast pipe, carries the gas after premixing in gas-supply pipe and the butt pipe to the blast pipe inside and carries out further mixing, mixes the gas that passes through the mixture in the blast pipe and the waste gas that waits to handle afterwards.
The single rotation of the rotating block outputs a certain amount of gas, the rotation frequency of the rotating block in unit time is controlled to control the flow of the gas output, when the flow of the waste gas changes, the rotation speed of the rotating block is changed, so that the flow of the output oxidized mixed gas can change along with the change condition of the flow of the waste gas, and the probability of overflow of mixed oxygen and ozone or incomplete waste gas treatment caused by the change of the flow of the waste gas is reduced.
Optionally, the air inlet channel, the air delivery pipe and the abutting pipe are all provided with a plurality of air inlets.
Through adopting above-mentioned technical scheme, the setting of a plurality of air inlet channels and gas-supply pipe can improve the gas flow that the turning block single rotation was exported.
Optionally, the air inlet channel and the air delivery channel are both provided with one-way valves.
Through adopting above-mentioned technical scheme, the check valve that sets up in the air inlet channel can reduce the probability that gas flows backward in the intake pipe, and the check valve that sets up in the gas transmission channel can reduce the inside gas of blast pipe and flow backward in the probability of entering in the gas transmission channel.
Optionally, when the air inlet channel is communicated with the air inlet pipe, the circle centers of the guide ring groove areas through which the abutting pipe is rotated are the same, and the circle centers are positioned on the rotation axis of the rotating block.
Through adopting above-mentioned technical scheme, when air inlet channel and intake pipe intercommunication, the direction annular that the butt pipe was changeed is apart from the rotor center position distance unanimous, and the inside space of butt pipe is certain when can guaranteeing air inlet channel and intake pipe intercommunication, and then it is certain to get into the inside gas flow of butt pipe when making air inlet channel and intake pipe intercommunication.
Optionally, the inside sliding connection of blast pipe has the baffle, the baffle with be provided with reset spring between the blast pipe keeps away from intake pipe one end lateral wall, the air vent has been seted up on the baffle.
Through adopting above-mentioned technical scheme, the setting of baffle and reset spring can be when the flow of the waste gas of waiting to handle or mixed back oxidizing gas changes, and automatic control baffle is adjusted to control the gas velocity of flow of output.
Optionally, the last sliding of blast pipe inner wall is provided with keeps off the ring, keep off the ring can follow the baffle removes, it has many spinal branchs vaulting poles to articulate on the blast pipe inside wall, a plurality of wear to be equipped with the diaphragm between the bracing piece, wherein, a plurality of the bracing piece can keep with keep off ring inside wall butt state under the torsional spring effect.
Through adopting above-mentioned technical scheme, the baffle is when being close to the intake pipe, and the baffle drives the baffle ring and removes to being close to the intake pipe, and bracing piece is kept away from intake pipe one end and is close to each other.
In summary, the present invention includes at least one of the following beneficial technical effects:
1. The amount of the gas output by the rotating block in a single rotation is fixed, the flow of the gas output can be controlled by controlling the rotation frequency of the rotating block in unit time, and when the flow of the waste gas is changed, the flow of the output oxidized mixed gas can be changed along with the change condition of the flow of the waste gas by changing the rotating speed of the rotating block, so that the probability of overflow of mixed oxygen and ozone or incomplete waste gas treatment caused by the change of the flow of the waste gas is reduced;
2. The baffle and the reset spring are arranged, so that the baffle can be automatically controlled to adjust when the flow of the waste gas to be treated or the mixed oxidizing gas changes, and the output gas flow rate is controlled.
In addition, the gas mixing device has the advantages of simple structure, easiness in assembly, safety and reliability in use and convenience in implementation, popularization and application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an exploded view of an embodiment of the present invention;
FIG. 3 is a schematic view showing the assembled state of the rotating block and the gas receiving base according to the embodiment of the present invention;
FIG. 4 is a schematic view showing the structure of a gas receiving base according to an embodiment of the present invention;
FIG. 5 is a schematic view showing the assembly state of a turning block and a gas pipe according to an embodiment of the present invention;
fig. 6 is a schematic view showing a structure of a baffle plate and a baffle ring according to an embodiment of the present invention.
Reference numerals illustrate: 1. an air inlet pipe; 11. an air inlet pipe I; 12. an air inlet pipe II; 2. an exhaust pipe; 3. a gas receiving seat; 31. a rotating block; 32. an air intake passage; 33. a gas pipe; 34. a butt joint pipe; 35. a receiving chamber; 36. a guide ring groove; 37. a gas transmission channel; 4. a baffle; 41. a return spring; 42. a vent hole; 5. a baffle ring; 51. a support rod; 52. a diaphragm.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to fig. 6 of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention.
The embodiment of the invention discloses a gas mixing device. Referring to fig. 1, a gas mixing apparatus includes a gas supply pipe 1 and a gas discharge pipe 2 for outputting mixed gas, wherein the gas supply pipe 1 includes a first gas supply pipe 11 for supplying a first gas and a second gas supply pipe 12 for supplying a second gas.
Referring to fig. 1,2 and 3, a gas mixing device further includes a gas receiving seat 3 disposed between the exhaust pipe 2 and the intake pipe 1, a rotating block 31 is rotatably connected to a central position of the gas receiving seat 3, an intake passage 32 capable of rotating with the rotating block 31 and receiving the gas input from the intake pipe 1 is formed in the rotating block 31, and the intake passage 32 is capable of rotating with the rotating block 31 and sequentially receiving the gas input from the intake pipe 11 and the intake pipe 12. The rotating block 31 is also fixedly communicated with a gas pipe 33 communicated with the gas inlet channel 32. The gas pipe 33 is sleeved with a butt pipe 34 in a sliding manner, the rotating block 31 is provided with a containing cavity 35 for installing the rotating block 31, the side wall of the containing cavity 35 is provided with a guide ring groove 36, and the guide ring groove 36 is arranged in a cam shape.
Referring to fig. 2,3, 4 and 5, the abutment tube 34 is slidably abutted with the guide ring groove 36 along with the rotation of the rotating block 31, specifically, a reset member is disposed between the abutment tube 34 and the air delivery tube 33, the reset member can enable the abutment tube 34 to have a trend of moving away from the rotating block 31, the reset member can be a spring, or a guide limiting member is disposed inside the guide ring groove 36, so that one end of the abutment tube 34, which is close to the guide ring groove 36, can only move along the guide ring groove 36. The arrangement of the spring and the guide limiting member is well known to those skilled in the art, and will not be described in detail herein.
Referring to fig. 2,3 and 4, a gas delivery channel 37 is formed in the gas receiving seat 3, one end of the gas delivery channel 37 is communicated with the near center point of the guiding ring groove 36, and the other end of the gas delivery channel 37 is communicated with the interior of the exhaust pipe 2. It should be noted that the near center point of the guide ring groove 36 refers to the point on the arc of the track of the guide ring groove 36 that is closest to the center of rotation (on the rotation axis of the rotating block 31) in a straight line, and correspondingly, the far center point of the guide ring groove 36 refers to the point on the arc of the track of the guide ring groove 36 that is farthest from the center of rotation (on the rotation axis of the rotating block 31) in a straight line.
The rotation of the rotating block 31 drives the abutting pipe 34 to slide, so that gas in the gas inlet pipe 1 is extracted into the gas pipe 33 and the inside of the abutting pipe 34 to be premixed, and when the abutting pipe 34 rotates to be communicated with the inside of the exhaust pipe 2, the premixed gas in the gas pipe 33 and the abutting pipe 34 is conveyed into the inside of the exhaust pipe 2 to be further mixed, and then the mixed gas in the exhaust pipe 2 is mixed with the exhaust gas to be treated.
For each rotation of the rotating block 31, the abutting pipe 34 performs a reciprocating movement with a fixed stroke relative to the air pipe 33, so that the amount of air output by the rotating block 31 in a single rotation is fixed. The flow rate of the gas output can be controlled by controlling the rotational frequency of the rotating block 31 in a unit time.
That is, when the flow meter detects that the flow rate of the exhaust gas changes, the rotation speed of the rotating block 31 is changed, and the number of times of outputting the gas per unit time of the abutting pipe 34 is changed due to the change of the rotation speed of the rotating block 31, and the flow rate of the output gas per unit time of the abutting pipe 34 also changes along with the flow rate of the exhaust gas because the amount of the output gas of the rotating block 31 is constant. The specific process is as follows:
when the flow meter detects the flow increase of the waste gas, the rotation speed of the rotating block 31 is firstly increased, and the output mixed gas amount of the abutting pipe 34 in unit time is increased;
When the flow meter detects a decrease in the flow rate of the exhaust gas, the rotation speed of the rotating block 31 is first reduced, and the amount of the output mixed gas per unit time of the abutting pipe 34 is reduced.
Referring to fig. 2, 3 and 4, the air intake passage 32, the air delivery pipe 33 and the abutting pipe 34 are provided in plurality, and the check valves are provided in each of the air intake passage 32 and the air delivery passage 37. Wherein the check valve in the air intake passage 32 is disposed near one end of the air intake pipe 1, and the check valve in the air delivery passage 37 is disposed near one end of the inside of the air discharge pipe 2. The provision of the plurality of air intake passages 32 and the air delivery pipe 33 can improve the flow rate of the gas output by the single rotation of the rotating block 31. The check valve provided in the intake passage 32 can reduce the probability of the gas flowing back into the intake pipe 1, and the check valve provided in the gas delivery passage 37 can reduce the probability of the gas inside the exhaust pipe 2 flowing back into the gas delivery passage 37.
When the intake passage 32 communicates with the intake pipe 1,
The circle centers of the areas of the guide ring grooves 36 through which the abutting pipes 34 rotate are the same, and the circle centers are positioned on the rotation axis of the rotating block 31, so that the space inside the abutting pipes 34 is certain when the air inlet channels 32 are communicated with the air inlet pipes 1, and the air flow entering the inside of the abutting pipes 34 is certain when the air inlet channels 32 are communicated with the air inlet pipes 1.
Referring to fig. 2 and 6, a baffle plate 4 is slidably connected inside the exhaust pipe 2, a return spring 41 is arranged between the baffle plate 4 and the side wall of one end, far away from the intake pipe 1, of the exhaust pipe 2, and a vent hole 42 is formed in the baffle plate 4. The baffle 4 and the return spring 41 are arranged to automatically control the baffle 4 to adjust when the flow rate of the exhaust gas to be treated or the mixed oxidizing gas changes, thereby controlling the output gas flow rate.
Referring to fig. 2 and 6, a baffle ring 5 is slidably disposed on the inner wall of the exhaust pipe 2, the baffle ring 5 can move along with the baffle plate 4, a plurality of support rods 51 are hinged on the inner wall of the exhaust pipe 2, and a diaphragm 52 is arranged between the plurality of support rods 51 in a penetrating manner. Wherein, a plurality of support rods 51 can keep the abutting state with the inner side wall of the baffle ring 5 under the action of torsion springs. When the baffle 4 is close to or far away from the air inlet pipe 1, the baffle 4 drives the baffle ring 5 to be close to or far away from the air inlet pipe 1, one ends of the support rods 51 far away from the air inlet pipe 1 are mutually closed or opened, the space surrounded by the support rods 51 is adjusted, and then the flow rate of gas passing through the diaphragm 52 is adjusted.
When the gas flow rate output by the abutting pipe 34 changes, the baffle 4 moves along with the output flow rate, and the final output gas flow rate is regulated, which comprises the following specific processes:
when the output gas flow of the abutting pipe 34 is increased, the baffle plate 4 moves away from the gas receiving seat 3, the space area between the baffle plate 4 and the gas receiving seat 3 is increased, so that the gas more stably flows into the area between the baffle plate 4 and the exhaust pipe 2, and meanwhile, the area between the baffle plate 4 and the exhaust pipe 2 is decreased, and the gas is more rapidly discharged and mixed with the exhaust gas;
When the output gas flow rate of the abutting pipe 34 becomes smaller, the baffle 4 moves toward the direction approaching the gas receiving seat 3, the space area between the baffle 4 and the gas receiving seat 3 becomes smaller, so that the gas more smoothly flows into the area between the baffle 4 and the exhaust pipe 2, and at the same time, the area between the baffle 4 and the exhaust pipe 2 becomes larger, so that the velocity of the gas exhausted in the exhaust pipe 2 becomes slower.
The implementation principle of the gas mixing device in the embodiment of the invention is as follows:
when the flow meter detects that the flow of the waste gas is increased, the rotation speed of the rotating block 31 is firstly increased, the output mixed gas amount of the abutting pipe 34 in unit time is increased, the baffle plate 4 moves towards the direction away from the gas receiving seat 3, the space area between the baffle plate 4 and the gas receiving seat 3 is enlarged, so that the gas more stably flows into the area between the baffle plate 4 and the exhaust pipe 2, and meanwhile, the area between the baffle plate 4 and the exhaust pipe 2 is reduced, and the gas is more rapidly discharged and mixed with the waste gas;
When the flow meter detects that the flow rate of the exhaust gas decreases, the rotation speed of the rotating block 31 is first reduced, the amount of the output mixed gas per unit time of the abutting pipe 34 decreases, the baffle plate 4 moves toward the direction approaching the gas receiving seat 3, the space area between the baffle plate 4 and the gas receiving seat 3 becomes smaller, the gas more smoothly flows into the area between the baffle plate 4 and the exhaust pipe 2, and meanwhile, the area between the baffle plate 4 and the exhaust pipe 2 becomes larger, so that the speed of the gas exhausted in the exhaust pipe 2 becomes slower.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "vertical", "horizontal", etc. are based on the orientation or positional relationship 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 device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (4)
1. A gas mixing device comprising an inlet pipe (1) for providing a gas and an outlet pipe (2) for outputting the mixed gas, characterized in that the gas mixing device further comprises:
a gas receiving seat (3) arranged between the exhaust pipe (2) and the intake pipe (1);
The rotary block (31) is rotatably arranged at the central position of the gas receiving seat (3), an air inlet channel (32) capable of rotating along with the rotary block (31) and receiving air input by the air inlet pipe (1) is formed in the rotary block (31), an air pipe (33) communicated with the air inlet channel (32) is fixedly communicated with the rotary block (31), an abutting pipe (34) is sleeved on the air pipe (33) in a sliding manner, a containing cavity (35) for installing the rotary block (31) is formed in the gas receiving seat (3), a guide ring groove (36) is formed in the side wall of the containing cavity (35), and the guide ring groove (36) is arranged in a cam shape;
The abutting pipe (34) is in sliding abutting connection with the guide ring groove (36) along with the rotation of the rotating block (31), a gas transmission channel (37) is formed in the gas receiving seat (3), one end of the gas transmission channel (37) is communicated with a near center point of the guide ring groove (36), and the other end of the gas transmission channel (37) is communicated with the interior of the exhaust pipe (2); the near center point of the guide ring groove (36) refers to the closest point of the track arc of the guide ring groove (36) in a straight line distance from the rotation center of the rotating block (31);
the inside of the exhaust pipe (2) is connected with a baffle plate (4) in a sliding manner, a return spring (41) is arranged between the baffle plate (4) and the side wall of one end, far away from the air inlet pipe (1), of the exhaust pipe (2), and an air vent (42) is formed in the baffle plate (4);
A baffle ring (5) is slidably arranged on the inner wall of the exhaust pipe (2), the baffle ring (5) can move along with the baffle plate (4), a plurality of support rods (51) are hinged on the inner side wall of the exhaust pipe (2), a diaphragm (52) is arranged between the support rods (51) in a penetrating way, and the support rods (51) can keep a state of being abutted against the inner side wall of the baffle ring (5) under the action of torsion springs;
When the baffle (4) is close to the air inlet pipe (1), the baffle (4) drives the baffle ring (5) to be close to the air inlet pipe (1), one ends of the support rods (51) away from the air inlet pipe (1) are mutually closed, the space enclosed by the support rods (51) is adjusted, and then the flow rate of gas passing through the diaphragm (52) is adjusted.
2. A gas mixing device according to claim 1, wherein: the air inlet channel (32), the air delivery pipe (33) and the abutting pipe (34) are all provided with a plurality of air inlet channels.
3. A gas mixing device according to claim 1, wherein: check valves are arranged in the air inlet channel (32) and the air delivery channel (37).
4. A gas mixing device according to claim 1, wherein: when the air inlet channel (32) is communicated with the air inlet pipe (1), the circle centers of the areas of the guide ring grooves (36) through which the abutting pipes (34) rotate are the same, and the circle centers are positioned on the rotating axis of the rotating block (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410317626.9A CN117919977B (en) | 2024-03-20 | 2024-03-20 | Gas mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410317626.9A CN117919977B (en) | 2024-03-20 | 2024-03-20 | Gas mixing device |
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| CN117919977A CN117919977A (en) | 2024-04-26 |
| CN117919977B true CN117919977B (en) | 2024-07-05 |
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| CN115178117A (en) * | 2022-07-06 | 2022-10-14 | 中国计量大学 | Be suitable for scene smell blending device of multimedia device |
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