CN214210086U - Gas-liquid mixing device - Google Patents
Gas-liquid mixing device Download PDFInfo
- Publication number
- CN214210086U CN214210086U CN202022926042.1U CN202022926042U CN214210086U CN 214210086 U CN214210086 U CN 214210086U CN 202022926042 U CN202022926042 U CN 202022926042U CN 214210086 U CN214210086 U CN 214210086U
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- liquid
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- inlet channel
- mixing
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- 239000007788 liquid Substances 0.000 title claims abstract description 163
- 238000002347 injection Methods 0.000 claims abstract description 21
- 239000007924 injection Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000006260 foam Substances 0.000 description 34
- 239000012141 concentrate Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008258 liquid foam Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a gas-liquid mixing device, which comprises a liquid inlet channel, a mixing cavity, a gas cavity and an outlet channel; the liquid inlet channel is suitable for being connected with liquid, and a guide component which is suitable for guiding the liquid in the liquid inlet channel to flow spirally is arranged in the liquid inlet channel; the mixing cavity is communicated with the liquid inlet channel and is suitable for being connected with liquid in the liquid inlet channel, and the size of the cross section of the mixing cavity is larger than that of the cross section of the liquid inlet channel so that the liquid in the liquid inlet channel can diffuse around after entering the mixing cavity; the wall of the mixing cavity is provided with at least one gas injection hole which is communicated with the gas cavity so that gas in the gas cavity enters the mixing cavity and is mixed with liquid; the outlet passage is in communication with the mixing chamber and is adapted to discharge mixed liquor in the mixing chamber. The utility model discloses can improve the mixed effect of gas and liquid, improve gas-liquid mixture's sufficiency and homogeneity.
Description
Technical Field
The utility model relates to a gas-liquid mixing device.
Background
At present, a compressed air foam fire extinguishing system is a fire fighting engineering system used in places such as large buildings, ports, large-capacity transformer substations and the like, and the basic principle is that compressed air with a certain proportion is injected into pressure foam liquid and finally mixed to generate fire extinguishing foam, so that the fire extinguishing efficiency is greatly improved; among them, the gas-liquid mixer is an important component in the system, and directly affects the mixing effect of the foam liquid and the compressed air. However, in the conventional gas-liquid mixing apparatus, the mixing effect of the gas and the liquid is poor, and the mixing is insufficient and uneven.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide a gas-liquid mixing device, it can improve the mixed effect of gas and liquid, improves gas-liquid mixture's sufficiency and homogeneity.
In order to solve the technical problem, the technical scheme of the utility model is that: a gas-liquid mixing device comprises a liquid inlet channel, a mixing cavity, a gas cavity and an outlet channel; wherein,
the liquid inlet channel is suitable for being connected with liquid, and a guide component which is suitable for guiding the liquid in the liquid inlet channel to flow spirally is arranged in the liquid inlet channel;
the mixing cavity is communicated with the liquid inlet channel and is suitable for being connected with liquid in the liquid inlet channel, and the size of the cross section of the mixing cavity is larger than that of the cross section of the liquid inlet channel so that the liquid in the liquid inlet channel can diffuse around after entering the mixing cavity;
the wall of the mixing cavity is provided with at least one gas injection hole which is communicated with the gas cavity so that gas in the gas cavity enters the mixing cavity and is mixed with liquid;
the outlet passage is in communication with the mixing chamber and is adapted to discharge mixed liquor in the mixing chamber.
Further in order to make the mixed liquid foam more uniformly, a filter screen is connected in the mixing cavity, and the filter screen is arranged behind the gas injection hole in the flowing direction of the liquid.
Furthermore, a conical cavity wall is arranged at the end part of the mixing cavity connected with the liquid inlet channel;
the tapered cavity wall is gradually enlarged along the flowing direction of the liquid so as to enable the liquid to flow into the mixing cavity and then diffuse around;
the gas injection hole is arranged on the wall of the conical cavity.
Further provided is a specific arrangement mode of the gas cavity, and the gas cavity is arranged at the outer side of the liquid inlet channel in a surrounding mode.
Furthermore, the inlet end of the liquid inlet channel is provided with a tapered channel which is gradually reduced along the flowing direction of the liquid.
Further provides a concrete scheme of the guide part, the guide part is a spiral rib arranged on the inner wall of the liquid inlet channel.
Further, the gas-liquid mixing device also comprises an outer pipe, an inner pipe assembly and an end cover; wherein,
the end cover is connected to one end part of the outer pipe;
the inner pipe assembly is arranged in the outer pipe, and two end parts of the inner pipe assembly are connected with the outer pipe;
the liquid inlet channel is arranged in the inner pipe assembly;
the gas cavity is arranged between the outer pipe and the inner pipe assembly;
the mixing chamber is formed by at least the end cap and the inner tube assembly;
the outlet passage is provided in the end cap.
Further provides a concrete structure of the inner pipe assembly, the inner pipe assembly comprises a straight cylinder part, a left cone cylinder part gradually reduced from left to right and a right cone cylinder part gradually increased from left to right; wherein,
the left end part of the left cone cylinder part is connected to the outer pipe, and the right end part of the left cone cylinder part is connected with the left end part of the straight cylinder part;
the right end part of the right conical cylinder part is connected to the outer pipe, and the left end part of the right conical cylinder part is connected with the right end part of the straight cylinder part;
the end cover is connected to the right end part of the outer pipe;
the outer pipe, the left conical cylinder part, the straight cylinder part and the right conical cylinder part surround to form the gas cavity;
the end cover and the right cone cylinder part surround to form the mixing cavity;
the gas injection hole is arranged on the right cone cylinder part.
Further, the left cone cylinder part and the straight cylinder part are integrated;
the right end part of the straight cylinder part is connected to the outer pipe through at least one reinforcing plate;
the right end part of the right taper cylinder part is in threaded connection with the outer pipe;
and a sealing ring is arranged between the left end part of the right cone cylinder part and the right end part of the straight cylinder part, and the left end part of the right cone cylinder part abuts against the sealing ring on the right end part of the straight cylinder part.
Further, the guide part is a spiral rib arranged on the inner wall of the liquid inlet channel, the thread pitch of the spiral rib is M, and the length of the straight cylinder part is M; wherein the range of M/M is 3-8;
and/or the axial direction of the gas injection hole forms an included angle of 45-90 degrees with the cylinder wall of the right conical cylinder part.
After the technical scheme is adopted, the gas can be compressed air, the liquid can be foam liquid, the foam liquid firstly flows into the liquid inlet channel, the foam liquid spirally flows under the flow guiding action of the guide component, and when the foam liquid flows into the mixing cavity, the foam liquid is diffused all around; compressed air flows into the gas cavity and is then injected into the mixing cavity from the gas injection orifice and mixed with the foam concentrate. Wherein, the foam liquid flows spirally, which strengthens the fluidity of the foam liquid and can ensure that the foam liquid and the compressed air are mixed more fully; the foam liquid is diffused to the periphery after entering the mixing cavity, so that the compressed air can be in maximum contact with the foam liquid, the sufficiency and uniformity of gas-liquid mixing are enhanced, and the gas-liquid mixing effect is improved. When the mixed liquid passes through the filter screen, the filter screen can reduce the speed and increase the pressure of the mixed liquid, and the mixed liquid is more uniformly foamed.
Drawings
FIG. 1 is a schematic structural view of a gas-liquid mixing device according to the present invention;
fig. 2 is a detail view of a portion of fig. 1.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1 and 2, a gas-liquid mixing device comprises a liquid inlet channel 1, a mixing cavity 2, a gas cavity 3 and an outlet channel 4; wherein,
the liquid inlet channel 1 is suitable for being connected with liquid, and a guide component which is suitable for guiding the liquid in the liquid inlet channel 1 to flow spirally is arranged in the liquid inlet channel 1;
the mixing cavity 2 is communicated with the liquid inlet channel 1 and is suitable for being connected with liquid in the liquid inlet channel 1, and the size of the cross section of the mixing cavity 2 is larger than that of the cross section of the liquid inlet channel 1 so that the liquid in the liquid inlet channel 1 can enter the mixing cavity 2 and then diffuse around;
the wall of the mixing cavity 2 is provided with at least one gas injection hole 5 which is communicated with the gas cavity 3 so that gas in the gas cavity 3 enters the mixing cavity 2 and is mixed with liquid;
the outlet channel 4 is communicated with the mixing cavity 2 chamber and is suitable for discharging the mixed liquid in the mixing cavity 2; specifically, the mixed liquid is formed by mixing a gas and a liquid, in this embodiment, the gas may be compressed air, and the liquid may be a foam liquid. More specifically, foam liquid flows into the liquid inlet channel 1, flows spirally under the guide action of the guide component, and diffuses towards the periphery when flowing into the mixing cavity 2; compressed air flows into the gas chamber 3 and is then injected into the mixing chamber 2 from the gas injection hole 5 and mixed with the foam concentrate. Wherein, the foam liquid flows spirally, which strengthens the fluidity of the foam liquid and can ensure that the foam liquid and the compressed air are mixed more fully; the foam liquid is diffused to the periphery after entering the mixing cavity 2, so that the compressed air can be in maximum contact with the foam liquid, the sufficiency and uniformity of gas-liquid mixing are enhanced, and the gas-liquid mixing effect is improved.
As shown in fig. 1, a strainer 6 may be connected to the mixing chamber 2, and the strainer 6 is disposed behind the gas injection holes 5 in the flow direction of the liquid; specifically, the mixed liquid passes through the filter screen 6 and then is discharged from the outlet channel 4, and the filter screen 6 is used for reducing the speed and pressurizing the mixed liquid and simultaneously foaming the mixed liquid more uniformly.
As shown in fig. 1 and 2, a tapered cavity wall 7 is arranged at the end part of the mixing cavity 2 connected with the liquid inlet channel 1;
the conical cavity wall 7 is gradually enlarged along the flowing direction of the liquid so as to enable the liquid to flow into the mixing cavity 2 and then spread to the periphery;
the gas injection hole 5 is arranged on the conical cavity wall 7; specifically, according to the venturi effect, liquid gets into behind the mixing chamber 2 because the pressure differential of gas and liquid, liquid is difficult for passing through gas injection hole 5 flows back extremely in the gas chamber 3, consequently can need not to set up parts such as air pump, check valve, make the utility model discloses a gas-liquid mixing device structure is simpler, and economic practicality is stronger.
As shown in fig. 1, the gas chamber 3 may be disposed around the outside of the inlet passage 1.
As shown in fig. 1, the inlet end of the liquid inlet channel 1 may be provided with a tapered channel 8 which becomes gradually smaller in the flowing direction of the liquid.
In this embodiment, the guiding member may be a spiral rib 9 provided on the inner wall of the liquid inlet passage 1; specifically, the cross-sectional shape of the spiral rib 9 is triangular.
As shown in fig. 1, the gas-liquid mixing device further includes an outer tube 10, an inner tube assembly 11, and an end cap 12; wherein,
the end cap 12 is connected to one end of the outer tube 10;
the inner pipe assembly 11 is arranged in the outer pipe 10, and two ends of the inner pipe assembly 11 are connected with the outer pipe 10;
the liquid inlet channel 1 is arranged in the inner pipe assembly 11;
the gas cavity 3 is arranged between the outer pipe 10 and the inner pipe assembly 11;
the mixing chamber 2 is formed by at least the end cap 12 and the inner tube assembly 11;
the outlet channel 4 is provided in the end cap 12; specifically, the mixing chamber 2 may also be enclosed by the end cap 12, the inner tube assembly 11 and the outer tube 10, and in this embodiment, the mixing chamber 2 is enclosed by the end cap 12 and the inner tube assembly 11. More specifically, the end cap 12 is screwed on the wall of the outer tube 10, and a gas sealant is further coated between the end cap 12 and the outer tube 10; the outer tube 10 is provided with an air inlet 13 communicated with the gas cavity 3, the inner wall of the end cover 12 is provided with a circle of groove, the filter screen 6 is fixed in a metal round bar, and the metal round bar is embedded in the groove.
As shown in fig. 1 and 2, the inner pipe assembly 11 may include a straight pipe section 14, a left conical pipe section 15 gradually decreasing from left to right, and a right conical pipe section 16 gradually increasing from left to right; wherein,
the left end part of the left conical cylinder part 15 is connected to the outer pipe 10, and the right end part of the left conical cylinder part 15 is connected with the left end part of the straight cylinder part 14;
the right end part of the right conical cylinder part 16 is connected to the outer pipe 10, and the left end part of the right conical cylinder part 16 is connected with the right end part of the straight cylinder part 14;
the end cover 12 is connected to the right end of the outer tube 10;
the outer pipe 10, the left conical cylinder part 15, the straight cylinder part 14 and the right conical cylinder part 16 surround to form the gas cavity 3;
the end cover 12 and the right cone part 16 surround and form the mixing cavity 2;
the gas injection hole 5 is formed in the right cone part 16; specifically, the liquid inlet channel 1 is arranged in the straight cylinder part 14, the tapered channel 8 is arranged in the left tapered cylinder part 15, the right tapered cylinder part 16 forms the tapered cavity wall 7 of the mixing cavity 2, and the gas injection holes 5 are uniformly distributed on the right tapered cylinder part 16; the spiral rib 9 is arranged on the inner wall of the straight cylinder part 14, and the spiral rib 9 and the straight cylinder part 14 are integrally formed through mold casting.
As shown in fig. 1 and 2, the left conical cylinder 15 is integrated with the straight cylinder 14;
the right end of the straight cylinder part 14 is connected to the outer pipe 10 through at least one reinforcing plate 17;
the right end part of the right cone part 16 is connected to the outer pipe 10 in a threaded manner;
a sealing ring 18 is arranged between the left end part of the right conical cylinder part 16 and the right end part of the straight cylinder part 14, and the left end part of the right conical cylinder part 16 tightly presses the sealing ring 18 against the right end part of the straight cylinder part 14 to form sealing; specifically, the right end of the right tapered cylinder part 16 is in threaded connection with the inner pipe wall of the outer pipe 10, the left end of the left tapered cylinder part 15 is welded on the outer pipe 10, the right end of the straight cylinder part 14 is provided with an annular boss, and the sealing ring 18 is sleeved on the annular boss; the number of the reinforcing plates 17 can be 4-6, and in the embodiment, the number of the reinforcing plates 17 is 6.
As shown in fig. 1, the spiral rib 9 has a pitch M, and the straight cylinder 14 has a length M; wherein the range of M/M is 3-8, and 5 is preferred;
the included angle between the axial direction of the gas injection hole 5 and the cylinder wall of the right conical cylinder part 16 is 45-90 degrees, and preferably 90 degrees.
The working principle of the utility model is as follows:
the gas can be compressed air, the liquid can be foam liquid, the foam liquid firstly flows into the liquid inlet channel 1, the foam liquid spirally flows under the guide action of the guide component, and when the foam liquid flows into the mixing cavity 2, the foam liquid is diffused all around; compressed air flows into the gas chamber 3 and is then injected into the mixing chamber 2 from the gas injection hole 5 and mixed with the foam concentrate. Wherein, the foam liquid flows spirally, which strengthens the fluidity of the foam liquid and can ensure that the foam liquid and the compressed air are mixed more fully; the foam liquid is diffused to the periphery after entering the mixing cavity 2, so that the compressed air can be in maximum contact with the foam liquid, the sufficiency and uniformity of gas-liquid mixing are enhanced, and the gas-liquid mixing effect is improved. When the mixed liquid passes through the filter screen 6, the filter screen 6 can reduce the speed and increase the pressure of the mixed liquid, and the mixed liquid is more uniformly foamed.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment 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.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
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 present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (10)
1. A gas-liquid mixing device is characterized by comprising a liquid inlet channel (1), a mixing cavity (2), a gas cavity (3) and an outlet channel (4); wherein,
the liquid inlet channel (1) is suitable for being connected with liquid, and a guide component which is suitable for guiding the liquid in the liquid inlet channel (1) to flow spirally is arranged in the liquid inlet channel (1);
the mixing cavity (2) is communicated with the liquid inlet channel (1) and is suitable for being connected with liquid in the liquid inlet channel (1), and the size of the cross section of the mixing cavity (2) is larger than that of the cross section of the liquid inlet channel (1) so that the liquid in the liquid inlet channel (1) can enter the mixing cavity (2) and then diffuse to the periphery;
the wall of the mixing cavity (2) is provided with at least one gas injection hole (5) which is communicated with the gas cavity (3) so that gas in the gas cavity (3) enters the mixing cavity (2) and is mixed with liquid;
the outlet channel (4) is in chamber communication with the mixing chamber (2) and is adapted to discharge the mixed liquor in the mixing chamber (2).
2. The gas-liquid mixing device according to claim 1, wherein a strainer (6) is attached to the mixing chamber (2), and the strainer (6) is disposed rearward of the gas-injection holes (5) in the flow direction of the liquid.
3. The gas-liquid mixing device according to claim 1,
a conical cavity wall (7) is arranged at the end part of the mixing cavity (2) connected with the liquid inlet channel (1);
the conical cavity wall (7) is gradually enlarged along the flowing direction of the liquid so as to enable the liquid to flow into the mixing cavity (2) and then to diffuse to the periphery;
the gas injection hole (5) is arranged on the conical cavity wall (7).
4. Gas-liquid mixing device according to claim 1, characterized in that the gas chamber (3) is arranged around the outside of the inlet channel (1).
5. A gas-liquid mixing device according to claim 1, wherein the inlet end of the inlet channel (1) is provided with a tapered channel (8) which becomes gradually smaller in the flow direction of the liquid.
6. The gas-liquid mixing device according to claim 1, wherein the guide member is a spiral rib (9) provided on an inner wall of the liquid inlet passage (1).
7. The gas-liquid mixing device according to claim 1, further comprising an outer tube (10), an inner tube assembly (11), and an end cap (12); wherein,
the end cover (12) is connected to one end of the outer pipe (10);
the inner pipe assembly (11) is arranged in the outer pipe (10), and two ends of the inner pipe assembly (11) are connected with the outer pipe (10);
the liquid inlet channel (1) is arranged in the inner pipe assembly (11);
the gas cavity (3) is arranged between the outer pipe (10) and the inner pipe assembly (11);
the mixing chamber (2) is formed by at least the end cap (12) and the inner tube assembly (11);
the outlet channel (4) is arranged in the end cover (12).
8. The gas-liquid mixing device according to claim 7, wherein the inner pipe assembly (11) includes a straight cylinder portion (14), a left tapered cylinder portion (15) that becomes gradually smaller from left to right, and a right tapered cylinder portion (16) that becomes gradually larger from left to right; wherein,
the left end part of the left cone-shaped cylinder part (15) is connected to the outer pipe (10), and the right end part of the left cone-shaped cylinder part (15) is connected with the left end part of the straight cylinder part (14);
the right end part of the right cone-shaped cylinder part (16) is connected to the outer pipe (10), and the left end part of the right cone-shaped cylinder part (16) is connected with the right end part of the straight cylinder part (14);
the end cover (12) is connected to the right end part of the outer pipe (10);
the outer pipe (10), the left taper cylinder part (15), the straight cylinder part (14) and the right taper cylinder part (16) surround to form the gas cavity (3);
the end cover (12) and the right cone part (16) surround to form the mixing cavity (2);
the gas injection hole (5) is formed in the right cone part (16).
9. The gas-liquid mixing device according to claim 8,
the left cone-shaped barrel part (15) and the straight barrel part (14) are integrated;
the right end part of the straight cylinder part (14) is connected to the outer pipe (10) through at least one reinforcing plate (17);
the right end part of the right cone-shaped barrel part (16) is in threaded connection with the outer pipe (10);
a sealing ring (18) is arranged between the left end part of the right conical cylinder part (16) and the right end part of the straight cylinder part (14), and the left end part of the right conical cylinder part (16) enables the sealing ring (18) to be tightly abutted against the right end part of the straight cylinder part (14).
10. The gas-liquid mixing device according to claim 8,
the guide part is a spiral rib (9) arranged on the inner wall of the liquid inlet channel (1), the thread pitch of the spiral rib (9) is M, and the length of the straight cylinder part (14) is M; wherein the range of M/M is 3-8;
and/or the included angle between the axial direction of the gas injection hole (5) and the cylinder wall of the right cone cylinder part (16) is 45-90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022926042.1U CN214210086U (en) | 2020-12-07 | 2020-12-07 | Gas-liquid mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022926042.1U CN214210086U (en) | 2020-12-07 | 2020-12-07 | Gas-liquid mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214210086U true CN214210086U (en) | 2021-09-17 |
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ID=77701132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022926042.1U Active CN214210086U (en) | 2020-12-07 | 2020-12-07 | Gas-liquid mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214210086U (en) |
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2020
- 2020-12-07 CN CN202022926042.1U patent/CN214210086U/en active Active
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