CN117861125A - High-speed rotary jetting device suitable for compressed air foam liquid - Google Patents
High-speed rotary jetting device suitable for compressed air foam liquid Download PDFInfo
- Publication number
- CN117861125A CN117861125A CN202410275266.0A CN202410275266A CN117861125A CN 117861125 A CN117861125 A CN 117861125A CN 202410275266 A CN202410275266 A CN 202410275266A CN 117861125 A CN117861125 A CN 117861125A
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- China
- Prior art keywords
- impeller
- wall
- rotary
- compressed air
- air foam
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- 239000007788 liquid Substances 0.000 title claims abstract description 65
- 239000006260 foam Substances 0.000 title claims abstract description 60
- 238000002347 injection Methods 0.000 claims description 50
- 239000007924 injection Substances 0.000 claims description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 238000009434 installation Methods 0.000 claims description 34
- 239000000725 suspension Substances 0.000 claims description 21
- 230000008859 change Effects 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 238000005507 spraying Methods 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 16
- 235000017491 Bambusa tulda Nutrition 0.000 description 16
- 241001330002 Bambuseae Species 0.000 description 16
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 16
- 239000011425 bamboo Substances 0.000 description 16
- 239000007921 spray Substances 0.000 description 13
- 230000001105 regulatory effect Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- 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
- A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a high-speed rotary spraying device suitable for compressed air foam liquid, which comprises a rotary spraying device body which is adaptively connected with an outlet of a mounting pipeline, wherein the rotary spraying device body is positioned on the axis of the mounting pipeline. The invention is used for improving the spraying force, thereby increasing the spraying coverage area, ensuring more ideal fire extinguishing effect and higher fire extinguishing efficiency.
Description
Technical Field
The invention relates to the technical field of injection, in particular to a high-speed rotary injection device suitable for compressed air foam liquid.
Background
In the field of compressed air foam fire control, water, foam liquid and compressed air are mixed in proportion and then sprayed through a spray head. The common spray nozzle is adopted, and the common spray nozzle sprays compressed air foam liquid, which has the following defects: 1. the rotating speed is low, firstly, the efficiency of converting pressure energy into kinetic energy is low, and secondly, the friction loss of the rotating spray head is large; 2. the spraying is uneven, the spraying speed of the compressed air foam liquid is reduced, the spraying coverage area is small, the striking force is small, and the fire extinguishing effect is affected.
Disclosure of Invention
The invention aims to provide a high-speed rotary spraying device suitable for compressed air foam liquid, which is used for improving spraying force, so that spraying coverage area is increased, and the fire extinguishing effect is more ideal and the fire extinguishing efficiency is higher.
In order to solve the technical problems, the invention adopts the following scheme:
the utility model provides a high-speed rotary jetting device suitable for compressed air foam liquid, includes the rotary jetting device body of being connected with installation pipeline export adaptation, and the rotary jetting device body is located the installation pipeline axis, the rotary jetting device body includes impeller and can dismantle the flow rotational speed regulator of being connected with impeller, and flow rotational speed regulator is located the installation pipeline inside, but relative rotation between impeller and the installation pipeline, and flow rotational speed regulator is adjustable gets into the inside water area of spraying the runner of impeller, and then adjusts the liquid pressure who gets into the inside spraying the runner of impeller, and liquid pressure changes the rotational speed of changing impeller.
By adopting the technical scheme, the rotary jetting device body is arranged at the outlet of the corresponding installation pipeline, the rotary jetting device body is positioned in the conveying direction of the compressed air foam liquid, namely, on the axis of the installation pipeline, the compressed air foam liquid enters the jetting flow passage inside the rotary impeller, the liquid pressure acts on the rotary impeller and pushes the rotary impeller to rotate, the rotary impeller rotates to generate centrifugal force to cooperate with the flow passage of the rotary impeller so as to enable the compressed air foam liquid to be rotationally sprayed, the flow rate and speed regulator is used for regulating the water passing area of the jetting flow passage inside the rotary impeller, the liquid pressure entering the jetting flow passage inside the rotary impeller is regulated, the liquid pressure is changed to change the rotating speed of the rotary impeller, the rotating speed of the rotary impeller is faster, the generated centrifugal force is larger, the air foam liquid is thrown out more quickly, the spraying distance is longer, and the spraying coverage area is wider, so that the fire extinguishing effect is more ideal, the fire extinguishing efficiency is improved, and the fire extinguishing can be performed in a large range.
Further, the installation pipeline outlet is provided with an adaptive shell, the part of the shell, which is positioned at the outer side of the installation pipeline, is provided with a horn-shaped opening, the rotary impeller is positioned at the inner side of the shell and forms a first injection runner with the inner wall of the shell, and the first injection runner is communicated with the inner runner of the installation pipeline.
Further, be equipped with the fixed section of thick bamboo between the shell upper end inner wall, be equipped with the fixed plate between fixed section of thick bamboo and the shell lateral wall, the fixed plate is annular interval along fixed section of thick bamboo outer wall and distributes, and fixed plate one end is connected with fixed section of thick bamboo lateral wall, and the other end is connected with the shell inner wall, forms the first water flow channel with the inside runner of installation pipeline and the inside injection runner switch-on of rotatory impeller between the adjacent fixed plate.
Further, flow rotational speed regulator includes regulation pole, adjusting screw, water conservancy diversion piece, and water conservancy diversion piece lower extreme and regulation pole fixed connection, and regulation pole sliding sleeve is located in the fixed section of thick bamboo, and fixed section of thick bamboo inner wall is equipped with wear-resisting polytetrafluoroethylene layer, and the terminal surface is equipped with the internal thread hole with the adjusting screw adaptation under the regulation pole, and adjusting screw upper end passes rotatory impeller middle part and internal thread hole threaded connection, forms the second and crosses water flow channel between water conservancy diversion piece outer wall and the shell outer wall, and rotatory adjusting screw changes the difference in height between regulation pole bottom and the fixed section of thick bamboo bottom and then changes the water flow area of second crossing water flow channel.
Furthermore, both sides of the top and the bottom of the flow guide block are inclined planes, the two inclined planes of the top are in inverted V shape, the two sides of the bottom are in V shape, and a second water flow passage with adjustable water flow area is formed between the two sides of the bottom and the corresponding side wall of the shell.
Further, the outside of adjusting the pole is equipped with first spring, and it is equipped with the second spring to adjust the pole below, and first spring one end acts on the guide block, and the other end acts on the fixed section of thick bamboo, and the second spring is located the adjusting screw outside, and second spring one end acts on the regulation pole bottom surface, and the other end acts on rotary impeller.
Further, the top and the bottom of the fixed cylinder are both provided with mounting grooves, a first magnetic suspension bearing positioned at the outer side of the adjusting rod is arranged in the mounting groove at the top, the inner ring of the first magnetic suspension bearing is not contacted with the side wall of the adjusting rod, a second magnetic suspension bearing positioned at the outer side of the adjusting screw is arranged in the mounting groove at the bottom, and the inner ring of the second magnetic suspension bearing is not contacted with the side wall of the adjusting screw.
Further, the rotary impeller comprises a first fixed ring, a second fixed ring, a first conical barrel, a second conical barrel and guide vanes, wherein the lower end of the first fixed ring is connected with the upper end of the first conical barrel, the first fixed ring is connected with the outer shell in an adaptive rotating way, a first injection flow passage is formed between the outer wall of the first conical barrel and the inner wall of the outer shell, the second fixed ring and the first fixed ring are concentrically arranged and are positioned on the inner side of the first fixed ring, the lower end of the second fixed ring is connected with the top of the second conical barrel, a second injection flow passage is formed between the inner wall of the first conical barrel and the outer wall of the second conical barrel, a third injection flow passage is formed on the inner side of the second conical barrel, the first injection flow passage, the second injection flow passage and the third injection flow passage are all communicated with the first water flow passage, the guide vanes are arranged in the second injection flow passage and the third injection flow passage, and the guide vanes feel liquid pressure to drive the rotary impeller to rotate.
Further, the guide vanes are annularly distributed, the guide vanes are twisted clockwise or anticlockwise, the guide vanes are spiral in the same plane, and the lower ends of the guide vanes jointly form a concave sphere.
Further, one side of the guide vane is connected with the inner wall of the first conical cylinder, the upper position of the other side of the guide vane is connected with the outer wall of the second fixed ring, and the second conical cylinder penetrates through the guide vane and is fixedly connected with the guide vane.
The invention has the beneficial effects that:
1. according to the invention, the rotary jetting device body is arranged at the outlet of the corresponding installation pipeline, the rotary jetting device body is positioned in the conveying direction of compressed air foam liquid, namely, on the axis of the installation pipeline, the compressed air foam liquid enters the jetting flow passage in the rotary impeller, the liquid pressure acts on the rotary impeller and pushes the rotary impeller to rotate, the rotary impeller rotates to generate centrifugal force to match with the flow passage of the rotary impeller so as to enable the compressed air foam liquid to rotationally spray, then the flow rate and speed regulator regulates the water passing area entering the jetting flow passage in the rotary impeller, so that the liquid pressure entering the jetting flow passage in the rotary impeller is regulated, the liquid pressure changes to change the rotating speed of the rotary impeller, the faster the rotating speed of the rotary impeller is, the greater the generated centrifugal force is, the faster the air foam liquid is thrown out, the spraying distance is longer, and the spraying coverage area is wider, so that the fire extinguishing effect is more ideal, the fire extinguishing efficiency is also improved, and the fire extinguishing can be performed in a large range.
2. The magnetic suspension bearing is adopted to drive the adjusting rod to rotate, so that friction force can be reduced, mechanical energy loss is reduced, the rotating speed of the rotating impeller is further improved, the spraying force is increased, the coverage area is further improved, and the fire extinguishing efficiency is improved.
3. When the rotary impeller sprays air foam liquid, three spray channels are arranged, the first spray channel and the second spray channel form a spray range of a conical ring, and the third flow channel enables the air foam liquid to be sprayed from the middle part of the rotary impeller, so that the three spray channels form a solid conical spray range, and the fire extinguishing effect is more ideal.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the guide block after the guide block has been moved down;
FIG. 3 is a schematic perspective view of a rotary impeller;
FIG. 4 is another perspective view of a rotary impeller;
FIG. 5 is a front view of a rotary impeller;
FIG. 6 is a top view of a rotary impeller;
FIG. 7 is a bottom view of the rotary impeller;
fig. 8 is an internal structural view of the rotary impeller.
Reference numerals: the device comprises the following components of a 1-rotating impeller, a 2-shell, a 3-adjusting screw, a 4-second spring, a 5-fixed cylinder, a 6-first magnetic suspension bearing, a 7-first spring, an 8-internally threaded hole, a 9-adjusting rod, a 10-mounting pipeline, an 11-flow guiding block, a 12-second water flow passage, a 13-fixed plate, a 14-polytetrafluoroethylene layer, a 15-first water flow passage, a 16-first injection flow passage, a 17-second injection flow passage, a 18-third injection flow passage, a 19-second fixed ring, a 20-step hole, a 21-first fixed ring, a 22-first conical cylinder, a 23-guide vane, a 24-second conical cylinder and a 25-second magnetic suspension bearing.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "configured," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples
The utility model provides a high-speed rotary jetting device suitable for compressed air foam liquid, includes the rotary jetting device body of being connected with installation pipeline 10 export adaptation, and the rotary jetting device body is located installation pipeline 10 axis, the rotary jetting device body includes impeller 1 and can dismantle the flow rotational speed regulator of being connected with impeller 1, and flow rotational speed regulator is located installation pipeline 10 inside, rotatable relatively between impeller 1 and the installation pipeline 10, and flow rotational speed regulator is adjustable gets into the water flow area of impeller 1 inside injection runner, and then adjusts the liquid pressure that gets into impeller 1 inside injection runner, and liquid pressure changes the rotational speed that changes impeller 1.
In this embodiment, as shown in fig. 1, the rotary spraying device body is installed at the outlet of the corresponding installation pipeline 10, the rotary spraying device body is located in the direction of conveying compressed air foam, that is, on the axis of the installation pipeline 10, the flow rate rotation speed regulator is located inside the installation pipeline 10 and is used for regulating the water passing area so as to change the pressure of liquid, the rotary impeller 1 and the installation pipeline 10 can rotate relatively, so that the rotary impeller 1 can rotate clockwise or anticlockwise under the action of the air foam, the air foam in the internal flow channel of the rotary impeller 1 is thrown out to the outside at a certain speed to extinguish fire, the compressed air foam enters the injection flow channel in the rotary impeller 1, the liquid pressure acts on the rotary impeller 1 and pushes the rotary impeller 1 to rotate, the rotary impeller 1 rotates to generate centrifugal force to cooperate with the flow channel of the rotary impeller 1 so as to enable the compressed air foam to be sprayed in a rotating way, then the flow rate rotation speed regulator is used for regulating the water passing area of the internal injection flow channel of the rotary impeller 1, the liquid pressure entering the internal injection flow channel of the rotary impeller 1 is regulated, the rotation speed of the rotary impeller 1 is changed, the rotary impeller 1 is fast, the generated centrifugal force is larger, the air foam is thrown out to the fire extinguishing efficiency is larger, the fire extinguishing efficiency is better, and the fire extinguishing effect is better and the fire extinguishing effect is obtained.
Further, the outlet of the installation pipeline 10 is provided with an adaptive shell 2, a part of the shell 2, which is positioned at the outer side of the installation pipeline 10, is provided with a horn-shaped opening, the rotary impeller 1 is positioned at the inner side of the shell 2 and forms a first injection flow passage 16 with the inner wall of the shell 2, and the first injection flow passage 16 is communicated with the inner flow passage of the installation pipeline 10.
Specifically, the outlet of the installation pipeline 10, namely the output direction of compressed air foam liquid, is connected with the shell 2 of adaptation in the exit, the shell 2 upper end is fixed inside the installation pipeline 10, the lower extreme of shell 2 is the horn-shaped opening setting, rotating impeller 1 is located the shell 2 inboard, be contactless between rotating impeller 1 lateral wall and the shell 2 inner wall, be formed with first injection runner 16, air foam liquid is carried first injection runner 16 behind the flow rate rotational speed regulator, and promote rotating impeller 1 to rotate, rotating impeller 1 rotates and produces centrifugal force and throws out air foam liquid at certain speed, the pressure of the air foam liquid that gets into first injection runner 16 is greater, the rotational speed of rotating impeller 1 is higher, then the air foam liquid injection dynamics is greater, the scope of spraying coverage is just greater.
Further, a fixed cylinder 5 is arranged between the inner walls of the upper end of the housing 2, a fixed plate 13 is arranged between the fixed cylinder 5 and the side walls of the housing 2, the fixed plates 13 are distributed at annular intervals along the outer walls of the fixed cylinder 5, one end of each fixed plate 13 is connected with the side walls of the fixed cylinder 5, the other end of each fixed plate is connected with the inner walls of the housing 2, and a first water flow passage 15 communicated with the inner flow passage of the mounting pipeline 10 and the injection flow passage inside the rotary impeller 1 is formed between the adjacent fixed plates 13.
Specifically, a fixed cylinder 5 is arranged inside the shell 2, a plurality of fixed plates 13 are annularly distributed between the fixed cylinder 5 and the inner wall of the shell 2, the fixed plates 13 are used for connecting the fixed cylinder 5, a water flow passage is formed between two adjacent fixed plates 13, air foam liquid enters into the inner flow passage of the rotary impeller 1 after passing through the first water flow passage 15, and the fixed cylinder 5 is mainly used for detachably installing the rotary impeller 1 and the flow rotating speed regulator.
Further, the flow rotating speed regulator comprises an adjusting rod 9, an adjusting screw 3 and a flow guiding block 11, the lower end of the flow guiding block 11 is fixedly connected with the adjusting rod 9, the adjusting rod 9 is slidably sleeved in the fixed cylinder 5, the inner wall of the fixed cylinder 5 is provided with a wear-resistant polytetrafluoroethylene layer 14, the lower end face of the adjusting rod 9 is provided with an internal threaded hole 8 matched with the adjusting screw 3, the upper end of the adjusting screw 3 penetrates through the middle part of the rotating impeller 1 and is in threaded connection with the internal threaded hole 8, a second water passing flow passage 12 is formed between the outer wall of the flow guiding block 11 and the outer wall of the shell 2, and the rotating adjusting screw 3 changes the height difference between the bottom of the adjusting rod 9 and the bottom of the fixed cylinder 5 so as to change the water passing area of the second water passing flow passage 12.
Specifically, adjust pole 9 is the cylindricality structure, guide block 11 is fixed in and adjust pole 9 top and be located installation pipeline 10 inside, form adjustable second water runner 12 between guide block 11 both sides and the shell 2 top lateral wall, adjust pole 9 bottom surface offer with the internal thread hole 8 of adjusting screw 3 adaptation, during the installation, adjust pole 9 lower extreme slip insert fixed section of thick bamboo 5 inner chamber, adjusting screw 3 passes rotatory impeller 1 middle part from bottom to top, the internal thread hole 8 threaded connection of adjusting pole 9 bottom surface behind the fixed section of thick bamboo 5 middle part, adjust pole 9 and fixed section of thick bamboo 5 can slide relatively in vertical, fixed section of thick bamboo 5 inner wall is provided with wear-resisting polytetrafluoroethylene layer 14, can improve the wear resistance of fixed section of thick bamboo 5 inner wall, fixed section of thick bamboo 5 bottom and rotary impeller 1 contact's position also are equipped with polytetrafluoroethylene layer 14, play wear-resisting reduction coefficient of friction effect, make rotary impeller 1 can further improve under the liquid impact, make adjust pole 9 reciprocate in fixed section of thick bamboo 5 inside, and drive water runner 11 reciprocates, when guide block 11 reciprocates, second runner 12 increases, as shown in figure 2, the foam impeller 1 is down, the foam liquid injection flow is down, the effect is greatly increased, thereby the foam air injection flow is down, the air flow is greatly increased, and the foam injection flow rate is greatly increased, and the air flow rate is increased.
Furthermore, the top and bottom sides of the flow guiding block 11 are inclined planes, the top two inclined planes are inverted V-shaped, the bottom two sides are V-shaped, and a second water flow channel 12 with adjustable water flow area is formed between the bottom two sides and the corresponding side wall of the housing 2.
Specifically, the transverse maximum length of the flow guide block 11 is greater than the opening of the shell 2, so that the flow guide block 11 cannot fall from the opening of the shell 2, the limiting effect is achieved on the flow guide block 11, two sides of the top of the flow guide block 11 and two sides of the bottom of the flow guide block are inclined planes, the two inclined planes at the top form an inverted V shape, the two inclined planes at the bottom form the V shape, the two inclined planes at the top can play a role in flow guide, the air foam liquid flowing speed is accelerated, accumulation is avoided, a second water flow channel 12 is formed between the inclined planes at the two sides of the bottom and the top of the shell 2, the top of the shell 2 is also an inclined plane, and the flow guide block 11 moves up and down to change the water flow area of the second water flow channel 12, so that the pressure of the air foam liquid is changed.
Further, a first spring 7 is arranged on the outer side of the adjusting rod 9, a second spring 4 is arranged below the adjusting rod 9, one end of the first spring 7 acts on the guide block 11, the other end of the first spring acts on the fixed cylinder 5, the second spring 4 is arranged on the outer side of the adjusting screw 3, one end of the second spring 4 acts on the bottom surface of the adjusting rod 9, and the other end of the second spring 4 acts on the rotating impeller 1.
Specifically, the outside cover of adjusting the pole 9 is equipped with first spring 7, and first spring 7 upper end acts on guide block 11, and the lower extreme is acted on fixed section of thick bamboo 5, and the cover is equipped with second spring 4 in adjusting screw 3 outside, and second spring 4 upper end acts on adjusting pole 9 bottom surface, and the lower extreme acts on rotatory impeller 1, forms the corner of an L shape between guide block 11 and the adjusting pole 9, and first spring 7 can play certain supporting and spacing effect to guide block 11 like this, and second spring 4 also can play a supporting role to adjusting lever 9 simultaneously, avoids guide block 11, adjusting screw 3 and rotatory impeller 1 whereabouts down like this. Meanwhile, after the second spring 4 is compressed, the second spring 4 can give a downward force to the rotary impeller 1, and the downward force can prevent the rotary impeller 1 from being extruded too tightly with the bottom surface of the fixed cylinder 5, so that the rotation rate of the rotary impeller 1 is ensured.
Further, the top and the bottom of the fixed cylinder 5 are respectively provided with a mounting groove, a first magnetic suspension bearing 6 positioned at the outer side of the adjusting rod 9 is arranged in the mounting groove at the top, the inner ring of the first magnetic suspension bearing 6 is not contacted with the side wall of the adjusting rod 9, a second magnetic suspension bearing 25 positioned at the outer side of the adjusting screw 3 is arranged in the mounting groove at the bottom, and the inner ring of the second magnetic suspension bearing 25 is not contacted with the side wall of the adjusting screw 3.
Specifically, the mounting grooves are formed in the top and the bottom of the fixed cylinder 5, the first magnetic suspension bearing 6 and the second magnetic suspension bearing 25 which are matched are respectively arranged in the mounting grooves in the upper and lower directions, the adjusting rod 9 is positioned on the inner side of the first magnetic suspension bearing 6 and is not in contact with the inner ring of the first magnetic suspension bearing 6, the adjusting screw 3 is positioned on the inner side of the second magnetic suspension bearing 25 in the lower direction and is not in contact with the inner ring of the second magnetic suspension bearing 25, so that when the air foam liquid pushes the rotary impeller 1 to rotate, friction force can be reduced, the loss of mechanical energy when the adjusting rod 9 and the adjusting screw 3 rotate is reduced, the rotating speed of the rotary impeller 1 is further improved, the spraying force is increased, the coverage area is further improved, and the fire extinguishing efficiency is improved.
Further, the rotary impeller 1 includes a first fixed ring 21, a second fixed ring 19, a first conical cylinder 22, a second conical cylinder 24 and a guide vane 23, the lower end of the first fixed ring 21 is connected with the upper end of the first conical cylinder 22, the first fixed ring 21 is connected with the housing 2 in a rotating manner, a first injection runner 16 is formed between the outer wall of the first conical cylinder 22 and the inner wall of the housing 2, the second fixed ring 19 and the first fixed ring 21 are concentrically arranged and are located at the inner side of the first fixed ring 21, the lower end of the second fixed ring 19 is connected with the top of the second conical cylinder 24, a second injection runner 17 is formed between the inner wall of the first conical cylinder 22 and the outer wall of the second conical cylinder 24, a third injection runner is formed at the inner side of the second conical cylinder 24, the first injection runner 16, the second injection runner 17 and the third injection runner 18 are all connected with the first water runner 15, the guide vane 23 is arranged in the second injection runner 17 and the third injection runner 18, and the guide vane 23 senses the liquid pressure to drive the rotary impeller 1 to rotate.
Further, the plurality of guide vanes 23 are annularly distributed, the plurality of guide vanes 23 are twisted clockwise or anticlockwise, the plurality of guide vanes 23 are formed in a spiral shape in the same plane, and the lower ends of the plurality of guide vanes 23 jointly form a concave sphere shape.
Further, one side of the guide vane 23 is connected with the inner wall of the first conical cylinder 22, the upper position of the other side is connected with the outer wall of the second fixing ring 19, and the second conical cylinder 24 passes through the guide vane 23 and is fixedly connected with the guide vane 23.
Specifically, as shown in fig. 3-8, the rotary impeller 1 is composed of a first fixed ring 21, a second fixed ring 19, a first conical cylinder 22, a second conical cylinder 24 and a guide vane 23, wherein the first fixed ring 21 is positioned at the outer side of the second fixed ring 19, the first fixed ring 21 and the second fixed ring 19 are arranged in concentric circles, the lower end of the first fixed ring 21 is integrally connected with the first conical cylinder 22, the lower end of the second fixed ring 19 is integrally connected with the second conical cylinder 24, the guide vane 23 is arranged between the first fixed ring 21 and the second fixed ring 19, one side of the guide vane 23 is integrally fixedly connected with the inner side walls of the first fixed ring 21 and the first conical cylinder 22, the upper end of the other side of the guide vane 23 is fixedly connected with the outer wall of the second fixed ring 19, the guide vane 23 plays the roles of fixing the first conical cylinder 22 and the second conical cylinder 24, the adjusting screw 3 passes through a step hole 20 at the bottom end of the second fixed ring 19 and upwards passes through the fixed cylinder 5 to be connected with an internal thread hole 8 of the adjusting rod 9, the plurality of guide vanes 23 are uniformly distributed along the circumference of the second fixing ring 19, the plurality of guide vanes 23 are spirally distributed in the same plane, the single guide vane 23 is twisted towards the center of the second cone 24, so that air bubble liquid can be sprayed towards the center of the second cone 24 along with the guide vane 23, the second cone 24 passes through the guide vane 23 from top to bottom, the guide vane 23 and the second cone 24 are integrally formed or welded, the guide vane 23 is divided into two parts by the second cone 24, a second spraying flow channel 17 is formed by the inner wall of the first cone 22, the outer wall of the second cone 24 and the adjacent guide vanes 23, a third spraying flow channel 18 is formed by the inner wall of the second cone 24 and the adjacent guide vanes 23, the first injection flow passage 16 is formed between the outer wall of the first conical barrel 22 and the inner wall of the shell 2, air foam liquid acts on the guide vane 23, generated reaction force enables the rotary impeller 1 to rotate, three injection flow passages are formed when the rotary impeller 1 injects the air foam liquid, the first injection flow passage 16 and the second injection flow passage 17 form an injection range of a conical ring, and the third flow passage enables the air foam liquid to be injected from the middle part of the rotary impeller 1, so that the three injection flow passages form a solid conical injection range, the fire extinguishing effect is more ideal, the energy conversion efficiency of the injection device is high, the local loss of mixed fluid is reduced, the pressure energy of the mixed fluid is effectively utilized, the mixed fluid is converted into the kinetic energy of the rotary impeller 1, the kinetic energy drives the air foam liquid, the foaming foam injection distance is long, the coverage area is large, the striking force is large, the foam liquid can reach the surface of a fire body more effectively, and the function of the foam liquid is better played: cooling, isolating air and preventing combustion reaction chain. Meanwhile, the compressed air foam liquid keeps foam, is not annihilated, is less damaged by impact, is less damaged by bypass, is less separated from gas and liquid, and can better play the effect of the compressed air foam liquid.
The foregoing description of the preferred embodiment of the invention is not intended to limit the invention in any way, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The utility model provides a high-speed rotary jetting device suitable for compressed air foam liquid, includes the rotary jetting device body of being connected with installation pipeline (10) export adaptation, and rotary jetting device body is located installation pipeline (10) axis, a serial communication port, rotary jetting device body includes impeller (1) and can dismantle the flow rotational speed regulator of being connected with impeller (1), and flow rotational speed regulator is located inside installation pipeline (10), can rotate relatively between impeller (1) and installation pipeline (10), and flow rotational speed regulator is adjustable gets into the water area of the inside injection runner of impeller (1), and then adjusts the liquid pressure who gets into the inside injection runner of impeller (1), and the liquid pressure changes the rotational speed of change impeller (1).
2. A high-speed rotary jetting apparatus for compressed air foam according to claim 1, wherein the outlet of the installation pipeline (10) is provided with an adapted housing (2), the part of the housing (2) located outside the installation pipeline (10) is provided with a horn-shaped opening, the rotary impeller (1) is located inside the housing (2) and forms a first jetting flow passage (16) with the inner wall of the housing (2), and the first jetting flow passage (16) is communicated with the inner flow passage of the installation pipeline (10).
3. The high-speed rotary jetting device suitable for compressed air foam liquid according to claim 2, wherein a fixed cylinder (5) is arranged between the inner walls of the upper end of the housing (2), fixed plates (13) are arranged between the fixed cylinder (5) and the side walls of the housing (2), the fixed plates (13) are distributed at intervals in a ring shape along the outer walls of the fixed cylinder (5), one end of each fixed plate (13) is connected with the side walls of the fixed cylinder (5), the other end of each fixed plate is connected with the inner walls of the housing (2), and a first water flow passage (15) communicated with the inner flow passage of the mounting pipeline (10) and the jetting flow passage inside the rotary impeller (1) is formed between the adjacent fixed plates (13).
4. The high-speed rotary jetting device suitable for compressed air foam liquid according to claim 1, wherein the flow rotating speed regulator comprises an adjusting rod (9), an adjusting screw (3) and a flow guide block (11), the lower end of the flow guide block (11) is fixedly connected with the adjusting rod (9), the adjusting rod (9) is slidably sleeved in the fixed cylinder (5), a wear-resistant polytetrafluoroethylene layer (14) is arranged on the inner wall of the fixed cylinder (5), an inner threaded hole (8) matched with the adjusting screw (3) is formed in the lower end face of the adjusting rod (9), the upper end of the adjusting screw (3) penetrates through the middle of the rotary impeller (1) to be in threaded connection with the inner threaded hole (8), a second water flow passage (12) is formed between the outer wall of the flow guide block (11) and the outer wall of the shell (2), and the rotating adjusting screw (3) changes the height difference between the bottom of the adjusting rod (9) and the bottom of the fixed cylinder (5) so as to change the water flow area of the second water flow passage (12).
5. The high-speed rotary jetting device for compressed air foam liquid according to claim 4, wherein the top and bottom sides of the flow guiding block (11) are inclined planes, the top two inclined planes are inverted V-shaped, the bottom two sides are V-shaped, and a second water flow channel (12) with adjustable water passing area is formed between the bottom two sides and the corresponding side wall of the housing (2).
6. The high-speed rotary jetting device for compressed air foam liquid according to claim 4, wherein a first spring (7) is arranged on the outer side of the adjusting rod (9), a second spring (4) is arranged below the adjusting rod (9), one end of the first spring (7) acts on the guide block (11), the other end acts on the fixed cylinder (5), the second spring (4) is arranged on the outer side of the adjusting screw (3), one end of the second spring (4) acts on the bottom surface of the adjusting rod (9), and the other end acts on the rotating impeller (1).
7. The high-speed rotary jetting device suitable for compressed air foam liquid according to claim 6, wherein the top and the bottom of the fixed cylinder (5) are respectively provided with a mounting groove, a first magnetic suspension bearing (6) positioned at the outer side of the adjusting rod (9) is arranged in the mounting groove at the top, the inner ring of the first magnetic suspension bearing (6) is not contacted with the side wall of the adjusting rod (9), a second magnetic suspension bearing (25) positioned at the outer side of the adjusting screw (3) is arranged in the mounting groove at the bottom, and the inner ring of the second magnetic suspension bearing (25) is not contacted with the side wall of the adjusting screw (3).
8. The high-speed rotary jetting device suitable for compressed air foam liquid according to claim 1, wherein the rotary impeller (1) comprises a first fixed ring (21), a second fixed ring (19), a first conical barrel (22), a second conical barrel (24) and guide vanes (23), the lower end of the first fixed ring (21) is connected with the upper end of the first conical barrel (22), the first fixed ring (21) is in adaptive rotary connection with the shell (2), a first jetting flow channel (16) is formed between the outer wall of the first conical barrel (22) and the inner wall of the shell (2), the second fixed ring (19) is arranged concentrically and is positioned at the inner side of the first fixed ring (21), the lower end of the second fixed ring (19) is connected with the top of the second conical barrel (24), a second water jetting flow channel (17) is formed between the inner wall of the first conical barrel (22) and the outer wall of the second conical barrel (24), a third jetting flow channel (16) is formed at the inner side of the second conical barrel (24), the first jetting flow channel (16), the second conical barrel (17) and the guide vanes (23) are all arranged in the rotary impeller (23) and are driven to rotate, and the first jetting flow channel (18) and the guide vanes (23) are all arranged in the rotary impeller.
9. A high-speed rotary jetting apparatus for compressed air foam according to claim 8, wherein the plurality of guide vanes (23) are annularly distributed, the plurality of guide vanes (23) are twisted in the clockwise or counterclockwise direction, the plurality of guide vanes (23) are formed in a spiral shape in the same plane, and the lower ends of the plurality of guide vanes (23) together form a concave spherical shape.
10. A high-speed rotary jetting apparatus for compressed air foam according to claim 9, wherein the guide vane (23) is connected to the inner wall of the first cone (22) at one side and to the outer wall of the second fixing ring (19) at the other side, and the second cone (24) penetrates the guide vane (23) and is fixedly connected to the guide vane (23).
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| CN202410275266.0A CN117861125B (en) | 2024-03-12 | 2024-03-12 | High-speed rotary jetting device suitable for compressed air foam liquid |
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| CN202410275266.0A CN117861125B (en) | 2024-03-12 | 2024-03-12 | High-speed rotary jetting device suitable for compressed air foam liquid |
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| CN117861125B (en) | 2024-06-18 |
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