CN108236794B - Foam extinguishing agent defoaming device - Google Patents
Foam extinguishing agent defoaming device Download PDFInfo
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- CN108236794B CN108236794B CN201710243605.7A CN201710243605A CN108236794B CN 108236794 B CN108236794 B CN 108236794B CN 201710243605 A CN201710243605 A CN 201710243605A CN 108236794 B CN108236794 B CN 108236794B
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- Prior art keywords
- foam
- rotary
- disc
- extinguishing agent
- driving device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0021—Degasification of liquids by bringing the liquid in a thin layer
- B01D19/0026—Degasification of liquids by bringing the liquid in a thin layer in rotating vessels or in vessels containing movable parts
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The foam extinguishing agent defoaming device comprises a rotary driving device, wherein the rotary driving device is connected with a multi-layer cutting foam rotary disc and a rotary fan, the rotary fan is positioned above the multi-layer cutting foam rotary disc, and the multi-layer cutting foam rotary disc and the rotary fan are connected to the shaft end of the rotary driving device through keys and are fastened through gaskets and screws; the manhole cover is arranged on a manhole opening at the top of the foam tank through a bolt and nut assembly, a sealing gasket is arranged between the manhole cover and the manhole opening, and a ventilation valve is arranged on one side above the manhole cover; the foam tank also comprises a connecting pipe used for communicating the upper space of the manhole opening with the inner cavity of the foam tank. According to the invention, the multi-layer cutting foam rotary disc and the rotary fan are driven to rotate together by the rotary driving device, foam is sucked and physically broken, so that foam extinguishing agent particles and gas are separated, foam extinguishing agent forms a droplet shape and is centrifugally separated and returns to the bottom of the foam tank, and gas flows back to the upper space of the foam tank. The defoaming device has high defoaming efficiency and small installation and use space.
Description
Technical Field
The invention relates to a foam extinguishing agent defoaming device, which is mainly used for solving the foam problem generated in the process of supplying the foam extinguishing agent during fire-fighting rescue, and belongs to the technical field of fire-fighting emergency rescue.
Background
At present, various foam fire-fighting vehicles can generate a large amount of foam when absorbing, transferring and supplying foam fire-extinguishing agents, and particularly, in the process of absorbing the barreled foam fire-extinguishing agents to the foam filling of the fire-fighting vehicles, the absorption filling time is extremely long during daily maintenance due to the large amount of foam generation, and each time a fire-fighting officer and soldier needs to take a day to fill one foam fire-fighting vehicle. If a large amount of foam exists in the foam tank, when the fire is extinguished and fighted, the amount of the foam extinguishing agent and the fire extinguishing efficiency are greatly reduced, and immeasurable loss is caused.
Disclosure of Invention
The invention aims to overcome the defect of the prior art and provide a foam extinguishing agent defoaming device, wherein the foam extinguishing agent of the device can realize the rapid physical reduction of generated foam, and the filling speed of the foam extinguishing agent is increased and the emergency rescue speed is improved while the extinguishing efficiency is not influenced.
The technical scheme of the invention is as follows: the device comprises a rotary driving device arranged on a manhole cover of a fire-fighting foam tank, wherein the rotary driving device is connected with a multi-layer cutting foam rotary disc and a rotary fan, the rotary fan is positioned above the multi-layer cutting foam rotary disc, the rotary driving device drives the multi-layer cutting foam rotary disc and the rotary fan to rotate together, and the multi-layer cutting foam rotary disc and the rotary fan are connected to the shaft end of the rotary driving device through keys and fastened through gaskets and screws, so that the device is safe and reliable; the manhole cover is assembled on a manhole opening at the top of the foam tank through a bolt and nut assembly, a sealing gasket is arranged between the manhole cover and the manhole opening, good sealing performance of the foam tank is ensured, and a ventilation valve is assembled on one side above the manhole cover; the foam tank also comprises a connecting pipe used for communicating the upper space of the manhole opening with the inner cavity of the foam tank.
The multilayer cutting foam rotary disk comprises a disk body group, an outer fixing ring used for fixing each disk body, and an inner shaft sleeve I, wherein the disk body group consists of more than two layers of disk bodies, the disk bodies comprise a disk body part positioned in the middle, a plurality of cutter parts radially connected to the periphery of the disk body part and an outer ring part connected to the outer side of the cutter parts, an inner shaft sleeve I mounting hole is formed in the middle of the disk body part, an inner shaft sleeve I inner hole is formed in the inner shaft sleeve I inner hole and matched with a key groove I of a rotary driving device shaft end, a plurality of holes are formed in the circumference of the outer fixing ring, and the holes are used for facilitating the centrifugal separation of foam extinguishing agent gathered on the disk body from the rotary disk.
The disc body is a thin stainless steel circular plate which is convenient for cutting foam and resistant to corrosion of foam extinguishing agent, the thickness of the thin stainless steel circular plate is 0.5-2mm, and the cutter part of the disc body is formed by cutting the circular plate, so that a filter screen structure is formed.
The tray body group is formed by stacking more than two layers of tray bodies, and gaps are arranged among the tray bodies.
The cutter part is arc-shaped.
The rotary fan comprises a plurality of blades, an outer fixing ring, an inner shaft sleeve II and a transition disc, wherein the outer sides of the blades are fixedly welded on the outer fixing ring, the inner sides of the blades are fixedly welded on the transition disc, the inner shaft sleeve II is arranged in the middle of the transition disc, an inner shaft sleeve II inner hole is provided with a key groove II matched with the shaft end of the rotary driving device, and a plurality of rows of through holes are formed in the circumference of the outer fixing ring.
The rotation angle of the blade is 15 degrees to 40 degrees.
The rotary driving device is fixed on the manhole cover through bolts.
The connecting pipes are more than one and are arranged at one side of the manhole opening at the top of the foam tank.
The connecting pipe is an elbow.
According to the invention, the upper part of the orifice of the person is communicated with the top of the foam tank to form a local air flow loop, the multi-layer cutting foam rotary disc and the rotary fan are driven to rotate together by the rotary driving device to suck foam, the foam is physically broken at the multi-layer cutting foam rotary disc to separate foam extinguishing agent particles from gas, the foam extinguishing agent is gathered to form a liquid drop shape, the liquid drop shape is centrifugally separated from the bottom of the foam tank, and the gas flows back to the upper space of the fire-fighting foam tank along the bent pipe. The defoaming device designed by the invention is directly modified at the manhole cover of the foam tank of the existing fire truck, the occupied space is very small, the gap between the cutters of the multi-layer cutting foam rotary disk 12 is large, the foam rotary disk cannot be blocked, the defoaming effect is obvious, and the problem of extremely low filling efficiency at present is well solved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of a multi-layer cut foam rotary disk.
Fig. 3 is a perspective view of fig. 2.
Fig. 4 is a schematic structural view of a rotary fan.
Fig. 5 is a perspective view of fig. 4.
Detailed Description
As shown in fig. 1, the invention comprises a rotary driving device 7 arranged on a manhole cover 3 of a foam tank 1 of a fire engine, wherein the driving device 7 is connected with a multi-layer cutting foam rotary disc 12 and a rotary fan 11, so that the driving device 7 drives the multi-layer cutting foam rotary disc 12 and the rotary fan 11 to rotate together. The manhole cover 3 is assembled on the manhole opening 2 at the top of the foam tank 1 and is fastened circumferentially through the bolts 5 and the nut assemblies, and a sealing gasket 4 is arranged between the manhole cover 3 and the manhole opening 2, so that good sealing performance of the foam tank 1 is ensured; and a ventilation valve 9 is arranged on one side above the manhole cover 3. The foam tank 1 top people's drill way 2 one side sets up return bend 10, and return bend 10 quantity is decided as required, and the equipartition is put in people's drill way 2, makes people's drill way 2 upper portion and foam tank 1 space be linked together, and people's drill way 2 and return bend 10 are all fixed at foam tank 1 top. The rotary drive device 7 is fastened to the manhole cover 3 by means of bolts. The multi-layer cutting foam rotary disc 12 and the rotary fan 11 are connected to the shaft end of the rotary driving device 7 through a key 13 and are fastened through gaskets 14 and screws, so that the safety and reliability of the device are ensured.
As shown in fig. 2 and 3, the multi-layer cutting foam rotary disk 12 used in the present invention comprises a disk body group 16, an outer fixing ring 17 for fixing each disk body, and an inner shaft sleeve one 18, wherein the disk body group is composed of more than two layers of disk bodies, the disk body comprises a disk core part positioned in the middle, a plurality of cutter parts radially connected to the periphery of the disk core part, and an outer ring part connected to the outer side of the cutter part, a mounting hole of the inner shaft sleeve one 18 is arranged in the middle of the disk core part, and the cutter parts of the disk bodies are formed by cutting circular plates to form a filter screen structure. The disc group is formed by stacking more than two layers of disc bodies at a certain interval, is penetrated on the first inner shaft sleeve 18, and the outer ring is matched with the outer fixing ring 17, and is welded integrally, so that the strength is ensured. The outer retainer 17 has a plurality of holes formed in its circumference.
As shown in fig. 4 and 5, the rotary fan 11 used in the present invention is composed of a plurality of blades 19, an outer fixing ring 20, an inner hub 21, and a transition disk. The inner hole of the second inner shaft sleeve 21 is matched with the shaft end of the rotary driving device 7 and is provided with a key slot which is connected through a key 13; the outer retainer plate 20 is circumferentially provided with a plurality of rows of through holes. The circumference of each blade 19 is uniformly distributed, the angle setting is fixed according to the design air quantity, each blade 19 is welded with the outer fixing ring 20 and the transition disc into a whole, and the inner sleeve II 21 is arranged in the middle of the transition disc.
The using method comprises the following steps:
1. the rotary driving device 7 is assembled on the manhole cover 3, the multilayer cutting foam rotary disc 12 and the rotary fan 11 are sequentially fastened at the shaft end of the rotary driving device 7, the ventilation valve 9 is assembled on the manhole cover 3, and the ventilation valve 9 is used for balancing the air pressure in the foam tank 1; the whole and the sealing gasket 4 are fastened on the manhole opening 2. The connection and the fastening are reliable everywhere.
2. The rotary driving device 7 is started to drive the multi-layer cutting foam rotary disc 12 and the rotary fan 11 to rotate together. According to the characteristics of the rotary fan 11, the air flow around the manhole opening 2 is driven to move, the starting point of the movement direction is the upper space of the fire-fighting foam tank 1, and then the fire-fighting foam tank rises to sequentially pass through the multi-layer cutting foam rotary disc 12 and the rotary fan 11 and enter the upper space of the manhole opening 2; according to the structure of the device, the air flow finally returns to the foam tank 1 along the bent pipe 10. When a large amount of foam is gathered at the upper part of the foam tank 1 by filling the foam extinguishing agent, the foam enters the multi-layer cutting foam rotating disc 12 along with the airflow; under the rotation condition, the multi-layer cutting foam rotary disc 12 forms a dense network to physically break up the foam, foam fire extinguishing agent particles are continuously collected on the filter screen, when the foam fire extinguishing agent particles reach liquid drops, the foam fire extinguishing agent particles are separated from all holes of the outer fixing ring 17 under the centrifugal action, fall back to the fire-fighting foam tank 1, and the gas in the foam continuously rises. This process can reduce the vast majority of the foam. When a small amount of foam fire extinguishing agent particles rising along with the air flow pass through the rotary fan 11, the foam fire extinguishing agent particles are centrifugally separated for the second time under the rotation action of the foam fire extinguishing agent particles, and finally pass through the rotary fan 11, and the air flow is basically free of foam fire extinguishing agent components. Meanwhile, the rotation driving equipment 7 used by the device can adjust the rotation speed according to the foam generation amount, and the stable and reliable defoaming effect is ensured.
Claims (8)
1. A foam extinguishing agent defoaming device is characterized in that: the device comprises a rotary driving device (7) arranged on a manhole cover (3) of a foam tank (1) of a fire engine, wherein the rotary driving device (7) is connected with a multi-layer cutting foam rotary disc (12) and a rotary fan (11), the rotary fan (11) is positioned above the multi-layer cutting foam rotary disc (12), and the multi-layer cutting foam rotary disc (12) and the rotary fan (11) are connected to the shaft end of the rotary driving device (7) through keys (13) and are fastened through gaskets (14) and screws;
the manhole cover (3) is assembled on a manhole opening (2) at the top of the foam tank (1) through a bolt (5) and a nut component, a sealing gasket (4) is arranged between the manhole cover (3) and the manhole opening (2), and a ventilation valve (9) is assembled on one side above the manhole cover (3);
the foam tank also comprises a connecting pipe (10) for communicating the upper space of the manhole (2) with the inner cavity of the foam tank (1);
the upper part of the orifice of the person is communicated with the top of the foam tank to form a local air flow loop, the multi-layer cutting foam rotating disc and the rotating fan are driven to rotate together by the rotating driving device to suck foam, the foam is physically broken at the multi-layer cutting foam rotating disc to separate foam extinguishing agent particles from gas, the foam extinguishing agent is gathered to form a liquid drop shape, the liquid drop shape is centrifugally separated and returns to the bottom of the foam tank, and the gas flows back to the upper space of the fire-fighting foam tank along the connecting pipe;
the multi-layer cutting foam rotary disc (12) comprises a disc body group (16), an outer fixing ring I (17) for fixing each disc body and an inner shaft sleeve I (18), wherein the disc body group consists of more than two layers of disc bodies, each disc body comprises a disc center part positioned in the middle, a plurality of cutter parts radially connected to the periphery of the disc center part and an outer ring part connected to the outer side of the cutter parts, a mounting hole of the inner shaft sleeve I (18) is formed in the middle of the disc center part, a key groove I matched with the shaft end of the rotary driving device (7) is formed in an inner hole of the inner shaft sleeve I (18), and a plurality of holes are formed in the circumference of the outer fixing ring I (17);
the rotary fan (11) comprises a plurality of blades (19), an outer fixing ring II (20), an inner shaft sleeve II (21) and a transition disc, wherein the outer sides of the blades are fixedly welded on the outer fixing ring II (20), the inner sides of the blades are fixedly welded on the transition disc, the inner shaft sleeve II (21) is arranged in the middle of the transition disc, an inner hole of the inner shaft sleeve II (21) is provided with a key groove II matched with the shaft end of the rotary driving device (7), and a plurality of rows of through holes are formed in the circumference of the outer fixing ring II (20).
2. The foam fire extinguishing agent defoaming device of claim 1, wherein: the disc body is a thin stainless steel circular plate, and the cutter part of the disc body is formed by cutting the circular plate.
3. The foam fire extinguishing agent defoaming device of claim 1, wherein: the tray body group is formed by stacking more than two layers of tray bodies, and gaps are arranged among the tray bodies.
4. The foam fire extinguishing agent defoaming device of claim 1, wherein: the cutter part is arc-shaped.
5. The foam fire extinguishing agent defoaming device of claim 1, wherein: the rotation angle of the blade is 15 degrees to 40 degrees.
6. The foam fire extinguishing agent defoaming device of claim 1, wherein: the rotary driving device (7) is fixed on the manhole cover (3) through bolts.
7. The foam fire extinguishing agent defoaming device of claim 1, wherein: the connecting pipes (10) are more than one and are arranged at one side of the top manhole opening (2) of the foam tank (1).
8. The foam fire extinguishing agent defoaming apparatus of claim 7, wherein: the connecting pipe (10) is an elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243605.7A CN108236794B (en) | 2017-04-14 | 2017-04-14 | Foam extinguishing agent defoaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243605.7A CN108236794B (en) | 2017-04-14 | 2017-04-14 | Foam extinguishing agent defoaming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108236794A CN108236794A (en) | 2018-07-03 |
| CN108236794B true CN108236794B (en) | 2023-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710243605.7A Active CN108236794B (en) | 2017-04-14 | 2017-04-14 | Foam extinguishing agent defoaming device |
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| Country | Link |
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| CN (1) | CN108236794B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112266016A (en) * | 2020-11-05 | 2021-01-26 | 山东道恩钛业有限公司 | Acidolysis reaction device in sulfuric acid process titanium white powder technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2260807Y (en) * | 1996-07-26 | 1997-08-27 | 晏承富 | Self-suction type bublle-eliminating device |
| JP2014064986A (en) * | 2012-09-26 | 2014-04-17 | Mitsubishi Heavy Industries Environmental & Chemical Engineering Co Ltd | Defoamer |
| CN204307414U (en) * | 2014-10-31 | 2015-05-06 | 中国石油化工集团公司 | A kind of thickness elastic foam defoaming device |
| CN205145681U (en) * | 2015-10-19 | 2016-04-13 | 广州市巨龙印制板设备有限公司 | Develop and move back broken bubble machine of membrane |
| CN206762331U (en) * | 2017-04-14 | 2017-12-19 | 新兴重工湖北三六一一机械有限公司 | A kind of fire foam defoaming device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7238226B2 (en) * | 2005-02-25 | 2007-07-03 | Hotani Co., Ltd. | Defoaming apparatus |
-
2017
- 2017-04-14 CN CN201710243605.7A patent/CN108236794B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2260807Y (en) * | 1996-07-26 | 1997-08-27 | 晏承富 | Self-suction type bublle-eliminating device |
| JP2014064986A (en) * | 2012-09-26 | 2014-04-17 | Mitsubishi Heavy Industries Environmental & Chemical Engineering Co Ltd | Defoamer |
| CN204307414U (en) * | 2014-10-31 | 2015-05-06 | 中国石油化工集团公司 | A kind of thickness elastic foam defoaming device |
| CN205145681U (en) * | 2015-10-19 | 2016-04-13 | 广州市巨龙印制板设备有限公司 | Develop and move back broken bubble machine of membrane |
| CN206762331U (en) * | 2017-04-14 | 2017-12-19 | 新兴重工湖北三六一一机械有限公司 | A kind of fire foam defoaming device |
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| Publication number | Publication date |
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| CN108236794A (en) | 2018-07-03 |
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