CN115337579A - Special gas-liquid mixer for compressed air foam fire extinguishing system - Google Patents
Special gas-liquid mixer for compressed air foam fire extinguishing system Download PDFInfo
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- CN115337579A CN115337579A CN202210999110.8A CN202210999110A CN115337579A CN 115337579 A CN115337579 A CN 115337579A CN 202210999110 A CN202210999110 A CN 202210999110A CN 115337579 A CN115337579 A CN 115337579A
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- 239000007788 liquid Substances 0.000 title claims abstract description 134
- 239000006260 foam Substances 0.000 title claims abstract description 109
- 238000005192 partition Methods 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 46
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/02—Making of fire-extinguishing materials immediately before use of foam
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to the technical field of special gas-liquid mixers for compressed air foam fire extinguishing systems, and discloses a special gas-liquid mixer for a compressed air foam fire extinguishing system, which comprises a water inlet pipe flange, wherein the side surface of the water inlet pipe flange is fixedly connected with a water inlet pipe, and the side surface of the water inlet pipe, which is far away from the water inlet pipe flange, is fixedly connected with a first check valve; according to the invention, the primary mixing chamber, the air outlet pipe, the gas-liquid mixing partition plate and the foam mixing liquid pipe are arranged, the foam mixing liquid enters the primary mixing chamber through the foam mixing liquid pipe, the pressurized air enters the air outlet pipe through the compressed air inlet pipe and the air chamber, and enters the primary mixing chamber through the air holes in the side surface of the air outlet pipe uniformly and dispersedly, at the moment, the foam mixing liquid and the pressurized air can be mixed more thoroughly, and the mixed foam mixing liquid and the pressurized air can enter the secondary mixing chamber to be mixed again, so that the generated air foam has better quality and is not easy to generate turbulence.
Description
Technical Field
The invention relates to the technical field of a special gas-liquid mixer for a compressed air foam fire extinguishing system, in particular to a special gas-liquid mixer for a compressed air foam fire extinguishing system.
Background
Compressed air foam fire extinguishing system is neotype fire extinguishing technology, and its principle is through adding the foam concentrate that is used for putting out a fire of certain proportion in aqueous for water and foam concentrate intensive mixing add certain proportion compressed air afterwards and foam, can refine the granularity of water like this, make there is bigger coverage area when the blowout, make the foam put out a fire can reach bigger coverage area, absorb the heat on fire surface, improved fire extinguishing efficiency.
At present, a compressed air foam fire extinguishing system is used in places such as extra-high voltage converter stations and other large-scale oil-filled equipment, petrochemical industry, traffic tunnels, garages, hangars and the like, and has the basic principle that foam liquid in a certain proportion is injected into fire fighting water through a metering injection foam pump to be mixed to form foam mixed liquid, and then pressurized air is injected to generate air foam, so that the fire extinguishing efficiency is greatly improved; the gas-liquid mixer is used as an important component in the system and directly influences the mixing effect of the foam mixed liquid and the compressed air. However, in the conventional gas-liquid mixing apparatus, the mixing effect of the gas and the foam mixed liquid is poor, and the turbulent flow is easily generated, mainly due to insufficient and uneven mixing.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a special gas-liquid mixer for a compressed air foam fire-extinguishing system, which solves the problems in the prior art.
The invention provides the following technical scheme: a special gas-liquid mixer for a compressed air foam fire extinguishing system comprises a water inlet pipe flange, wherein the side surface of the water inlet pipe flange is fixedly connected with a water inlet pipe, the side surface of the water inlet pipe, which is far away from the water inlet pipe flange, is fixedly connected with a first check valve, the side surface of the water inlet pipe, which is close to the water inlet pipe flange, is fixedly connected with a first digital display flow transmitter, the side surface of the water inlet pipe, which is close to the water inlet pipe flange, is close to the first check valve, is fixedly connected with a first digital display pressure transmitter, the side of the first check valve, which is far away from the water inlet pipe, is fixedly connected with a foam mixture pipe, the side surface of the foam mixture pipe, which is far away from the first check valve, is fixedly connected with a blind plate, and the other side of the blind plate is fixedly connected with an air chamber, the side fixedly connected with gas-liquid baffle of blind plate is kept away from to the air chamber, the side fixedly connected with one-level mixing chamber of blind plate is kept away from to the gas-liquid baffle, the side fixedly connected with second grade mixing chamber of gas-liquid baffle is kept away from to the one-level mixing chamber, the opposite side fixedly connected with reducer of second grade mixing chamber, one side fixedly connected with compressed air foam mixed liquid outlet flange of second grade mixing chamber is kept away from to reducer, the inside of one-level mixing chamber is equipped with the outlet duct, the outlet duct is porous outlet duct, the middle part fixedly connected with gas-liquid mixed baffle of one-level mixing chamber inboard, the inlet tube is connected with foam liquid feed liquor union coupling, according to the mixed liquid flow direction, foam mixed liquid pipe is connected with blind plate, gas-liquid baffle respectively.
Furthermore, according to the mixed liquid flow direction, the side of inlet tube connects gradually first digital display flow transmitter, first digital display pressure transmitter, first check valve.
Furthermore, the top end of the foam mixed liquid pipe is fixedly connected with a foam liquid inlet pipe, and the side surface of the foam liquid inlet pipe is sequentially and fixedly connected with a second digital display flow transmitter, a second digital display pressure transmitter and a second check valve from top to bottom.
Furthermore, the top end of the air chamber is fixedly connected with a compressed air inlet pipe, and the side surface of the compressed air inlet pipe is sequentially and fixedly connected with a third check valve, a third digital display flow transmitter and a third digital display pressure transmitter from top to bottom.
Further, the inlet end of air chamber and the bottom fixed connection of compressed air intake pipe, just the end of giving vent to anger of air chamber and the side fixed connection of outlet duct, the quantity of gas-liquid mixture baffle is four, four gas-liquid mixture baffle mutually perpendicular, and four the both sides of gas-liquid mixture baffle respectively with the side fixed connection that is close to the one-level mixing chamber of air chamber, second grade mixing chamber, the one-level mixing chamber passes through the gas-liquid baffle and separates four one-level mixing chambers of formation with the gas-liquid mixture baffle.
Furthermore, the bottom of the second-stage mixing chamber is fixedly connected with an emptying pipe, and the inner side of the bottom end of the emptying pipe is fixedly connected with an electric emptying valve.
Furthermore, four primary mixing chambers in the primary mixing chambers are communicated with the secondary mixing chamber.
Furthermore, the compressed air foam mixed liquid outlet flange is connected with a compressed air foam injection device.
Furthermore, four first-level mixing chambers in the first-level mixing chamber are respectively located around the outlet of the foam mixing liquid pipe, and the four first-level mixing chambers in the first-level mixing chamber are communicated with the foam mixing liquid pipe.
Furthermore, the number of the air outlet pipes is four, the air outlet pipes are respectively positioned in the four first-stage mixing chambers inside the first-stage mixing chamber and are communicated with the air chamber, and the air outlet pipes are porous.
The invention has the technical effects and advantages that:
1. according to the invention, the primary mixing chamber, the air outlet pipe, the gas-liquid mixing partition plate and the foam mixing liquid pipe are arranged, the foam mixing liquid enters the primary mixing chamber through the foam mixing liquid pipe, the pressurized air enters the air outlet pipe through the compressed air inlet pipe and the air chamber, and enters the primary mixing chamber through the air holes in the side surface of the air outlet pipe uniformly and dispersedly, at the moment, the foam mixing liquid and the pressurized air can be mixed more thoroughly, and the mixed foam mixing liquid and the pressurized air can enter the secondary mixing chamber to be mixed again, so that the generated air foam has better quality and is not easy to generate turbulence.
2. The digital display flow transmitter, the digital display pressure transmitter and the check valve are arranged, so that the flow and pressure change of fire water, foam liquid and pressurized air can be detected, the damage to equipment caused by overlarge flow or pressure is prevented, and the fire water, the foam liquid and the pressurized air are all provided with the check valve to prevent backflow when entering, so that the entering liquid or gas can be mixed, and the working efficiency of the fire water, the foam liquid and the pressurized air is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic side view of a primary mixing chamber according to the present invention.
The reference signs are: 1. a water inlet pipe flange; 2. a water inlet pipe; 3. a first digital display flow transmitter; 3-1, a second digital display flow transmitter; 3-2, a third digital display flow transmitter; 4. a first digital display pressure transmitter; 4-1, a second digital display pressure transmitter; 4-2, a third digital display pressure transmitter; 5. a first check valve; 5-1, a second check valve; 5-2, third check valve; 6. a foam liquid inlet pipe; 7. a foam mixing liquid pipe; 8. a compressed air inlet pipe; 9. a blind plate; 10. a gas chamber; 11. a gas-liquid separator; 12. a primary mixing chamber; 13. an air outlet pipe; 14. a gas-liquid mixing partition plate; 15. a secondary mixing chamber; 16. a reducer; 17. a compressed air foam mixed liquid outlet flange; 18. emptying the pipe; 19. an electrically operated drain valve.
Detailed Description
The technical means of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and the configurations of the respective structures described in the following embodiments are merely examples, and the gas-liquid mixer dedicated to a compressed air foam fire extinguishing system according to the present invention is not limited to the respective configurations described in the following embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
Referring to fig. 1, the invention provides a special gas-liquid mixer for a compressed air foam fire extinguishing system, which comprises a water inlet pipe flange 1, wherein the side surface of the water inlet pipe flange 1 is fixedly connected with a water inlet pipe 2, the side surface of the water inlet pipe 2, which is far away from the water inlet pipe flange 1, is fixedly connected with a first check valve 5, the side surface of the top end of the water inlet pipe 2, which is close to the water inlet pipe flange 1, is fixedly connected with a first digital display flow transmitter 3, the side surface of the top end of the water inlet pipe 2, which is close to the first check valve 5, is fixedly connected with a first digital display pressure transmitter 4, the side surface of the first check valve 5, which is far away from the water inlet pipe 2, is fixedly connected with a foam mixture liquid pipe 7, the side surface of the foam mixture liquid pipe 7, which is far away from the first check valve 5, is fixedly connected with a blind plate 9, and according to the flow direction of a mixed liquid, the side surface of the water inlet pipe 2 is sequentially connected with the first digital display flow transmitter 3, the first digital display pressure transmitter 4, the first check valve 5, the top end of the foam mixture liquid pipe 7 is fixedly connected with a foam liquid inlet pipe 6, and the side surface of the foam liquid transmitter 6 is sequentially connected with a second digital display flow transmitter 3-1, a second digital display pressure transmitter 4-1 and a second check valve 5-1 from top to the top;
through the technical scheme, when fire water enters the foam mixed liquid pipe 7 through the water inlet pipe flange 1 and the water inlet pipe 2, the flow and the pressure of the fire water can be detected through the first digital display flow transmitter 3 and the first digital display pressure transmitter 4, so that the pressure and the flow of the fire water can be adjusted in time, equipment damage is prevented, the fire water can enter the foam mixed liquid pipe 7 through the first check valve 5, the fire water entering the foam mixed liquid pipe 7 cannot flow backwards, the foam liquid sequentially passes through the second digital display flow transmitter 3-1, the second digital display pressure transmitter 4-1 and the back of the second check valve 5-1 to enter the foam mixed liquid pipe 7 and is mixed with the fire water to form foam mixed liquid, the flow and the pressure of the foam liquid can be detected, and the foam mixed liquid is prevented from flowing backwards through the second check valve 5-1, so that the mixing ratio of the foam mixed liquid is controlled to be more accurate and equipment damage is avoided.
Referring to the top end of the air chamber 10, a compressed air inlet pipe 8 is fixedly connected, and the side surface of the compressed air inlet pipe 8 is sequentially and fixedly connected with a third check valve 5-2, a third digital display flow transmitter 3-2 and a third digital display pressure transmitter 4-2 from top to bottom.
In the embodiment of the application, the pressurized gas enters through the compressed air inlet pipe 8, and the gas has pressure and is low in density, so that the pressurized gas is not easy to sink, the pressurized gas firstly passes through the third check valve 5-2 to be prevented from moving upwards, and then the third digital display flow transmitter 3-2 and the third digital display pressure transmitter 4-2 measure the flow and the pressure of the pressurized gas, so that the accuracy of gas-liquid mixing ratio and the stable operation of equipment are ensured.
Referring to fig. 1 and 2, one side of the blind plate 9 away from the foam mixture pipe 7 is fixedly connected with an air chamber 10, the side of the air chamber 10 away from the blind plate 9 is fixedly connected with an air-liquid partition plate 11, the side of the air-liquid partition plate 11 away from the blind plate 9 is fixedly connected with a first-stage mixing chamber 12, an air outlet pipe 13 is arranged inside the first-stage mixing chamber 12, a middle part of the inner side of the first-stage mixing chamber 12 is fixedly connected with an air-liquid mixing partition plate 14, an air inlet pipe 2 is connected with a foam liquid inlet pipe, the foam mixture pipe 7 is respectively connected with the blind plate 9 and the air-liquid partition plate 11 according to the flow direction of the mixed liquid, an air inlet end of the air chamber 10 is fixedly connected with the bottom end of the compressed air inlet pipe 8, an air outlet end of the air chamber 10 is fixedly connected with the side of the air outlet pipe 13, the four air-liquid mixing partition plates 14 are perpendicular to each other, two sides of the four air-liquid mixing partition plates 14 are respectively connected with the air chamber 10 and the second-stage mixing chamber 15 close to the first-stage mixing chamber 12, the first-stage mixing chamber 12 is separated from the air chamber 12 through the partition plate 11 to form four first-stage mixing chambers 12, the first-stage mixing chamber 12, the four first-stage mixing chambers are respectively communicated with the air outlet pipe 13, the air mixing chamber 12, the air outlet pipe 13, and the air outlet pipe 13 are respectively, and the four porous mixing chamber 13, and the four first-gas mixing chamber 12 are communicated with the porous mixing chamber 13.
In the embodiment of the application, the foam mixed liquid enters into one-level mixing chamber 12 from foam mixed liquid pipe 7, and one-level mixing chamber 12 is divided into four parts through gas-liquid mixing baffle 14 etc. so the foam mixed liquid evenly enters into four one-level mixing chambers of one-level mixing chamber 12, and the pressurized air that gets into from compressed air intake pipe 8 enters into outlet duct 13 after passing through air chamber 10, all be equipped with one outlet duct 13 in each one-level mixing chamber of one-level mixing chamber 12, and the air vent has all been seted up to the side of every outlet duct 13, consequently there is the compressed air can pass through the blowout of the gas pocket of outlet duct 13 side, thereby mix with the foam mixed liquid in one-level mixing chamber 12, generate air foam, and adopt four outlet ducts 13, and one-level mixing chamber 12 also is divided into four parts, when can avoid whole mixing, pressurized air can't mix with the foam mixed liquid apart from it far away, thereby improve its mixing effect, and can avoid the torrent.
The side fixedly connected with second grade mixing chamber 15 that gas-liquid baffle 11 was kept away from to one-level mixing chamber 12, the opposite side fixedly connected with reducer 16 of second grade mixing chamber 15, one side fixedly connected with compressed air foam mixed liquid outlet flange 17 that second grade mixing chamber 15 was kept away from to reducer 16, the bottom fixedly connected with evacuation pipe 18 of second grade mixing chamber 15, the inboard fixedly connected with electronic exhaust-valve 19 of evacuation pipe 18 bottom.
In the embodiment of the application, the air foam which is mixed once in the primary mixing chamber 12 is mixed again in the secondary mixing chamber 15, so that the mixing effect is improved, the electric emptying valve 19 can be used for emptying the pipeline, and the residual liquid is prevented from being frozen in the low-temperature environment and corroding and damaging equipment when the residual liquid is stopped.
The working principle of the invention is as follows: firstly, fire water is injected into a water inlet pipe 2 through a water inlet flange 1, after the fire water passes through a first check valve 5, the fire water can be prevented from flowing backwards at the moment, foam liquid is introduced into a foam liquid inlet pipe 6 and is contacted with the foam liquid at the moment, foam mixed liquid is formed in a foam mixed liquid pipe 7 and then enters a primary mixing chamber 12, pressurized air enters an air chamber 10 through a compressed air inlet pipe 8 and enters an air outlet pipe 13, the foam mixed liquid is located in four primary mixing chambers in the primary mixing chamber 12 at the moment, the pressurized air is sprayed out from air holes in the side face of the air outlet pipe 13 and is contacted with the foam mixed liquid to be mixed, the mixed air foam enters a secondary mixing chamber 15 again to be fully mixed and can be sprayed out through a compressed air foam mixed liquid outlet flange 17, and the compressed air foam mixed liquid outlet flange 17 can spray out uniform air foam.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," "connecting," and "connecting" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be directly connected, and "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiment of the invention, only the structures related to the disclosed embodiment are related, other structures can refer to common design, and the same embodiment and different embodiments of the invention can be combined mutually under the condition of no conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a special gas-liquid mixer of compressed air foam fire extinguishing systems, includes inlet tube flange (1), its characterized in that: the side fixedly connected with inlet tube (2) of inlet tube flange (1), the side fixedly connected with first check valve (5) that inlet tube flange (1) was kept away from inlet tube (2), the side fixedly connected with first digital display flow transmitter (3) that inlet tube flange (1) was close to inlet tube flange (1) is kept away from inlet tube (2) top, one side fixedly connected with first digital display pressure transmitter (4) that inlet tube (2) top is close to first check valve (5), one side fixedly connected with foam mixture pipe (7) that inlet tube (2) was kept away from in first check valve (5) is kept away from in foam mixture pipe (7), the side fixedly connected with blind plate (9) that first check valve (5) was kept away from in opposite side fixedly connected with air chamber (10) of blind plate (9), the side fixedly connected with gas-liquid baffle (11) that blind plate (9) was kept away from in air chamber (10), the side fixedly connected with one-level mixing chamber (12) that gas-liquid baffle (9) was kept away from in air chamber (11) in gas-liquid chamber (11), the side fixedly connected with second-level mixing chamber (15) that one side fixedly connected with second level mixing chamber (16) was kept away from gas-liquid mixing chamber (16), the big small and small head (17) was kept away from mixed liquid mixing chamber (16) was connected with second level mixed liquid mixing chamber (17), the inside of one-level mixing chamber (12) is equipped with outlet duct (13), the inboard middle part fixedly connected with gas-liquid mixture baffle (14) of one-level mixing chamber (12), inlet tube (2) and foam liquid feed liquor union coupling, according to mixed liquid flow direction, foam mixture liquid pipe (7) are connected with blind plate (9), gas-liquid baffle (11) respectively.
2. A gas and liquid mixer dedicated to a compressed air foam fire suppression system according to claim 1, wherein: according to mixed liquid flow direction, the side of inlet tube (2) is connected with first digital display flow transmitter (3), first digital display pressure transmitter (4), first check valve (5) in proper order.
3. A gas and liquid mixer dedicated to a compressed air foam fire suppression system according to claim 1, wherein: the top end of the foam mixed liquid pipe (7) is fixedly connected with a foam liquid inlet pipe (6), and the side surface of the foam liquid inlet pipe (6) is sequentially and fixedly connected with a second digital display flow transmitter (3-1), a second digital display pressure transmitter (4-1) and a second check valve (5-1) from top to bottom.
4. A gas and liquid mixer dedicated to a compressed air foam fire suppression system according to claim 1, wherein: the top end of the air chamber (10) is fixedly connected with a compressed air inlet pipe (8), and the side surface of the compressed air inlet pipe (8) is sequentially and fixedly connected with a third check valve (5-2), a third digital display flow transmitter (3-2) and a third digital display pressure transmitter (4-2) from top to bottom.
5. A gas and liquid mixer dedicated to a compressed air foam fire suppression system according to claim 1, wherein: the air inlet end of the air chamber (10) is fixedly connected with the bottom end of the compressed air inlet pipe (8), the air outlet end of the air chamber (10) is fixedly connected with the side face of the air outlet pipe (13), the number of the air-liquid mixing partition plates (14) is four, the air-liquid mixing partition plates (14) are perpendicular to each other and are four, the two sides of the air-liquid mixing partition plates (14) are fixedly connected with the side faces, close to the primary mixing chamber (12), of the air chamber (10) and the side faces, close to the secondary mixing chamber (15), of the secondary mixing chamber (15), and the primary mixing chamber (12) is separated from the air-liquid mixing partition plates (14) through the air-liquid partition plates (11) to form four primary mixing chambers.
6. A dedicated gas-liquid mixer for a compressed air foam fire suppression system according to claim 1, wherein: the bottom of the secondary mixing chamber (15) is fixedly connected with an emptying pipe (18), and the inner side of the bottom end of the emptying pipe (18) is fixedly connected with an electric emptying valve (19).
7. A gas and liquid mixer dedicated to a compressed air foam fire suppression system according to claim 1, wherein: and four primary mixing chambers in the primary mixing chamber (12) are communicated with the secondary mixing chamber (15).
8. A gas and liquid mixer dedicated to a compressed air foam fire suppression system according to claim 1, wherein: and the compressed air foam mixed liquid outlet flange (17) is connected with a compressed air foam injection device.
9. A dedicated gas-liquid mixer for a compressed air foam fire suppression system according to claim 1, wherein: four first-level mixing chambers in the first-level mixing chamber (12) are respectively positioned around the outlet of the foam mixing liquid pipe (7), and the four first-level mixing chambers in the first-level mixing chamber (12) are communicated with the foam mixing liquid pipe (7).
10. A gas and liquid mixer dedicated to a compressed air foam fire suppression system according to claim 1, wherein: the number of the air outlet pipes (13) is four, the air outlet pipes (13) are respectively positioned in the four primary mixing chambers in the primary mixing chamber (12), the air outlet pipes (13) are communicated with the air chamber (10), and the air outlet pipes (13) are porous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210999110.8A CN115337579A (en) | 2022-08-19 | 2022-08-19 | Special gas-liquid mixer for compressed air foam fire extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210999110.8A CN115337579A (en) | 2022-08-19 | 2022-08-19 | Special gas-liquid mixer for compressed air foam fire extinguishing system |
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| Publication Number | Publication Date |
|---|---|
| CN115337579A true CN115337579A (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210999110.8A Pending CN115337579A (en) | 2022-08-19 | 2022-08-19 | Special gas-liquid mixer for compressed air foam fire extinguishing system |
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| Country | Link |
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| CN (1) | CN115337579A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115887979A (en) * | 2022-12-20 | 2023-04-04 | 广州瑞港消防设备有限公司 | Large-traffic intelligent regulation foam fire extinguishing system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247673A (en) * | 2011-07-05 | 2011-11-23 | 淄博吉孚消防科技有限公司 | Gas-liquid proportioning mixed foam maker of compressed gas foam fire-fighting system |
| CN108635702A (en) * | 2018-05-16 | 2018-10-12 | 东华大学 | Foam solution mixing generating means in a kind of compressed air foam fire-extinguishing system |
| CN112156403A (en) * | 2020-10-14 | 2021-01-01 | 应急管理部天津消防研究所 | Compressed air foam gas-liquid mixer and design method |
| US20210346740A1 (en) * | 2018-10-19 | 2021-11-11 | China University Of Mining And Technology | Vehicle-mounted large-flow fire-fighting foam fluid mixing system |
-
2022
- 2022-08-19 CN CN202210999110.8A patent/CN115337579A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247673A (en) * | 2011-07-05 | 2011-11-23 | 淄博吉孚消防科技有限公司 | Gas-liquid proportioning mixed foam maker of compressed gas foam fire-fighting system |
| CN108635702A (en) * | 2018-05-16 | 2018-10-12 | 东华大学 | Foam solution mixing generating means in a kind of compressed air foam fire-extinguishing system |
| US20210346740A1 (en) * | 2018-10-19 | 2021-11-11 | China University Of Mining And Technology | Vehicle-mounted large-flow fire-fighting foam fluid mixing system |
| CN112156403A (en) * | 2020-10-14 | 2021-01-01 | 应急管理部天津消防研究所 | Compressed air foam gas-liquid mixer and design method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115887979A (en) * | 2022-12-20 | 2023-04-04 | 广州瑞港消防设备有限公司 | Large-traffic intelligent regulation foam fire extinguishing system |
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Application publication date: 20221115 |
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