CN214912871U - Fire control gas-liquid mixing device - Google Patents
Fire control gas-liquid mixing device Download PDFInfo
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- CN214912871U CN214912871U CN202120285851.0U CN202120285851U CN214912871U CN 214912871 U CN214912871 U CN 214912871U CN 202120285851 U CN202120285851 U CN 202120285851U CN 214912871 U CN214912871 U CN 214912871U
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Abstract
The utility model discloses a fire-fighting gas-liquid mixing device, which comprises a shell, a first end and a second end, wherein the shell is longitudinally communicated with the first end and the second end; the spacing sleeve is arranged in the shell, and two ends of the spacing sleeve are respectively abutted against the inner side surface of the first end and the second end to divide the interior of the shell into an outer cavity and an inner cavity which are independent of each other; at least one liquid inlet pipe arranged on the first end and communicated with the inner cavity liquid; a mixed liquid discharge pipe disposed on the second end and in fluid communication with the lumen; at least one air inlet pipe arranged on the side wall of the shell and communicated with the outer cavity in a gas phase manner; the spacing sleeve is uniformly provided with a plurality of air holes in a spiral shape, and the air holes are inclined to the tangent line of the spacing sleeve. Through above-mentioned structure, the effectual current gas-liquid mixing arrangement gas-liquid velocity of flow that has overcome is little, and area of contact is little, the gas-liquid contact does not have relative motion's problem.
Description
Technical Field
The utility model relates to a fire-fighting equipment, especially a fire control gas-liquid mixing device.
Background
In recent years, the national emphasis on fire safety is increasing, and foam fire extinguishing is one of important types in fire extinguishing products. The gas-liquid mixing mode on the market is as follows: bubbling tank, water spray, ejector, static mixer, taylor mixer, etc. The sufficient degree of gas-liquid mixing is directly related to the foaming times and the foaming diameters of the foam extinguishing agent of the fire-fighting product. The main factors influencing the gas-liquid mixing performance are as follows: the structure size of the mixing chamber, the flow rate of gas phase and liquid phase, the static contact angle, the liquid phase physical property parameters and the like.
Most of the existing gas-liquid mixing devices adopt a Venturi structure, gas is sucked into the pipe through negative pressure, the gas is driven to flow only by the flow of liquid, the bottleneck of a mixing part is small, and the mixing flowability is poor. And the gas-liquid mixing device commonly used in the market generally directly connects gas and liquid into the mixing chamber, and the gas and liquid are mixed by oneself, do not have stirring effect, and the mixing degree is low.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model aims to provide a fire control gas-liquid mixing device can improve the abundant degree of gas-liquid mixture, and it is little to improve the double-phase velocity of flow of gas-liquid, and area of contact is little, and the gas-liquid does not have relative motion's problem.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a fire-fighting gas-liquid mixing device comprises
A housing having a first end and a second end and longitudinally extending therethrough;
the spacing sleeve is arranged in the shell, and two ends of the spacing sleeve are respectively abutted against the inner side surface of the first end and the second end to divide the interior of the shell into an outer cavity and an inner cavity which are independent of each other; at least one
The liquid inlet pipe is arranged on the first end and is communicated with the inner cavity liquid;
a mixed liquid discharge pipe disposed on the second end and in fluid communication with the lumen; at least one
The air inlet pipe is arranged on the side wall of the shell and is communicated with the outer cavity in a gas phase manner;
the spacer sleeve is uniformly distributed with a plurality of air holes in a spiral shape, and the air holes are inclined to the radius of the spacer sleeve.
Further, the mixed liquid discharge pipe is in a cone shape, and the caliber of the mixed liquid discharge pipe is gradually reduced from one end close to the shell to one end far away from the shell.
Furthermore, the quantity of the liquid inlet pipes is two, and the two liquid inlet pipes are symmetrically arranged.
Furthermore, the number of the air inlet pipes is two, and the two air inlet pipes are symmetrically arranged on two sides of the shell.
Further, the air holes and the radius of the spacer sleeve are arranged at an inclination angle of 45 degrees.
Further, the air hole and the axis of the spacing sleeve are obliquely arranged, so that the compressed gas entering the inner cavity blows towards one side of the mixed liquid discharge pipe.
Further, the air holes and the axis of the spacer sleeve are arranged at an inclination angle of 45 degrees.
The working principle is as follows: when the fire extinguishing agent is required to be sprayed, the fire extinguishing agent is filled into the liquid inlet pipe and the compressed gas is filled into the gas inlet pipe simultaneously. Then, the fire extinguishing agent enters the inner cavity from the liquid storage bottle under the action of compressed gas, and after the fire extinguishing agent with pressure enters the inner cavity, the volume of the inner cavity is rapidly enlarged, so that the fire extinguishing agent with pressure is instantly expanded and diffused. Meanwhile, the compressed gas enters the outer cavity through the gas inlet pipe and then uniformly enters the inner cavity through the gas holes. When the fire extinguishing agent enters the inner cavity, compressed air generates acting force in the circumferential direction to the fire extinguishing agent diffused in the inner cavity under the guiding of the air holes, the fire extinguishing agent is driven by the acting force to rotate in the inner cavity so as to achieve similar stirring effect, and then the expanded fire extinguishing agent can be fully mixed with compressed gas. And finally, spraying the uniformly mixed fire extinguishing agent and the compressed gas out of the mixed liquid discharge pipe under the action of pressure.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view of one of the viewing angles of FIG. 1;
FIG. 3 is a cross-sectional view from another perspective of FIG. 1;
figure 4 is a partial view of a spacer sleeve.
Reference numerals: 100. housing 110, first end 120, second end 130, outer chamber 140, inner chamber 200, spacer 210, air vent 300, liquid inlet tube 400, mixed liquid discharge tube 500, and air inlet tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The fire fighting gas-liquid mixing device shown in fig. 1 to 4 comprises a casing 100 which is substantially cylindrical and has a first end 110 and a second end 120 and is provided to penetrate in a longitudinal direction. A spacer 200 is provided within the housing and has two ends abutting against the inner side of the first end and the inner side of the second end, respectively, thereby dividing the interior cavity of the housing into an outer cavity 130 and an inner cavity 140. In addition, at least one liquid inlet pipe 300 in fluid communication with the inner cavity is disposed on the end surface of the first end. The sectional area of the liquid inlet pipe is smaller than that of the inner cavity, so that the fire extinguishing agent is rapidly diffused after entering the inner cavity. In addition, a mixed liquor discharge pipe 400 is provided at the second end, which is in fluid communication with the inner chamber for the mixed gas and liquid to be ejected at high speed. At the same time, at least one air inlet pipe 500 is also arranged on the housing, and the air inlet pipe is communicated with the outer cavity in a gas phase mode. In order to realize the homogeneous mixing of gas-liquid and promote the mixed effect of gas-liquid through compressed air, still even arrangement has a plurality of gas pockets 210 on the spacer sleeve, and this gas pocket slope is in the tangent line setting of spacer sleeve to can be the heliciform after making compressed gas pass through the gas pocket and flow in the inner chamber, and then play the effect of stirring expanded fire extinguishing agent.
As a further improvement of the above embodiment, the mixed liquid discharge pipe has a tapered cylindrical shape in order to increase the spraying distance of the fire extinguishing agent after the gas-liquid mixing. Specifically, the mixed liquid discharge pipe is close to the shell one end and is the trend that reduces gradually to the bore of keeping away from shell one end. The mixed gas and liquid finally flow to the outside through the tapered closing-in for injection. The pipe diameter of the conical closing opening is reduced from large to small, the flow speed of the mixed liquid is increased, the initial speed of the sprayed fire extinguishing agent is increased, and the spraying distance is correspondingly increased.
As a further improvement of the above embodiment, the number of the liquid inlet pipes is two, and the two liquid inlet pipes are symmetrically arranged. Adopt two feed liquor pipes to spray extinguishing agent can reduce the sectional area of feed liquor pipe under the condition of spraying the same extinguishing agent, and then promote the diffusion effect when extinguishing agent gets into the inner chamber, promote subsequent gas-liquid mixture effect.
As a further improvement of the above embodiment, in order to balance the pressure when the compressed gas enters the inner cavity, the number of the inlet pipes is two, and the two inlet pipes are symmetrically arranged on the two sides of the shell. When admitting air, compressed air adopts two way pipe different position to get into the mixing chamber simultaneously, can the more evenly dispersed compressed air's of ability flow direction, the mixed degree when can improving gas-liquid mixture.
As a further improvement of the above embodiment, the air holes are arranged at an inclination of 45 ° to the tangent of the spacer sleeve in order to achieve higher stirring efficiency.
As a further improvement of the above embodiment, in order to utilize the compressed gas more efficiently, the gas hole and the axis of the spacer are provided obliquely so that the compressed gas entering the inner chamber is blown toward the mixed liquid discharge pipe side. After the compressed gas enters the inner cavity through the gas hole, the compressed gas has two directions of moving trends, namely annular and axial moving trends, under the guidance of the gas hole. The axial movement trend can push compressed gas to accelerate forwards, and then the jet velocity of mixed gas-liquid is improved.
As a further improvement of the above embodiment, when the air hole and the axis of the spacer sleeve form an inclination angle of 45 degrees, the compressed gas has obvious forward acceleration effect on the gas-liquid mixed fire extinguishing agent.
Claims (7)
1. The utility model provides a fire control gas-liquid mixing device which characterized in that: comprises that
A housing having a first end and a second end and longitudinally extending therethrough;
the spacing sleeve is arranged in the shell, and two ends of the spacing sleeve are respectively abutted against the inner side surface of the first end and the second end to divide the interior of the shell into an outer cavity and an inner cavity which are independent of each other; at least one
The liquid inlet pipe is arranged on the first end and is communicated with the inner cavity liquid;
a mixed liquid discharge pipe disposed on the second end and in fluid communication with the lumen; at least one
The air inlet pipe is arranged on the side wall of the shell and is communicated with the outer cavity in a gas phase manner;
the spacing sleeve is uniformly provided with a plurality of air holes in a spiral shape, and the air holes are inclined to the tangent line of the spacing sleeve.
2. The fire fighting gas-liquid mixing device of claim 1, wherein: the mixed liquid discharge pipe is in a cone shape, and the caliber of the mixed liquid discharge pipe is gradually reduced from one end close to the shell to one end far away from the shell.
3. A fire fighting gas-liquid mixing device as defined in claim 1 or 2, characterized in that: the liquid inlet pipe quantity is two, two liquid inlet pipes symmetrically arranged.
4. A fire fighting gas-liquid mixing device as defined in claim 3, wherein: the quantity of intake pipe be two, two intake pipe symmetry set up in the shell both sides.
5. The fire fighting gas-liquid mixing device of claim 4, wherein: the air holes and the tangent line of the spacing sleeve are arranged at an inclination angle of 45 degrees.
6. The fire fighting gas-liquid mixing device of claim 5, wherein: the axes of the air hole and the spacer sleeve are obliquely arranged so that the compressed gas entering the inner cavity blows towards one side of the mixed liquid discharge pipe.
7. The fire fighting gas-liquid mixing device of claim 6, wherein: the air holes and the axis of the spacer sleeve are arranged at an inclination angle of 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120285851.0U CN214912871U (en) | 2021-02-01 | 2021-02-01 | Fire control gas-liquid mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120285851.0U CN214912871U (en) | 2021-02-01 | 2021-02-01 | Fire control gas-liquid mixing device |
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| Publication Number | Publication Date |
|---|---|
| CN214912871U true CN214912871U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120285851.0U Active CN214912871U (en) | 2021-02-01 | 2021-02-01 | Fire control gas-liquid mixing device |
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| CN (1) | CN214912871U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115671619A (en) * | 2022-09-28 | 2023-02-03 | 徐工消防安全装备有限公司 | Foam generating device and fire fighting equipment |
-
2021
- 2021-02-01 CN CN202120285851.0U patent/CN214912871U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115671619A (en) * | 2022-09-28 | 2023-02-03 | 徐工消防安全装备有限公司 | Foam generating device and fire fighting equipment |
| CN115671619B (en) * | 2022-09-28 | 2023-08-04 | 徐工消防安全装备有限公司 | Foam generating device and fire fighting equipment |
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