CN115970210A - Compressed air and water spray fire extinguishing device under paint spraying vehicle - Google Patents
Compressed air and water spray fire extinguishing device under paint spraying vehicle Download PDFInfo
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- CN115970210A CN115970210A CN202211360661.6A CN202211360661A CN115970210A CN 115970210 A CN115970210 A CN 115970210A CN 202211360661 A CN202211360661 A CN 202211360661A CN 115970210 A CN115970210 A CN 115970210A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 144
- 239000007921 spray Substances 0.000 title claims abstract description 92
- 239000003973 paint Substances 0.000 title claims abstract description 29
- 238000005507 spraying Methods 0.000 title claims abstract description 13
- 238000000889 atomisation Methods 0.000 claims abstract description 22
- 239000012530 fluid Substances 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 16
- 230000008602 contraction Effects 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000003595 mist Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a compressed air water spray fire extinguishing device under a paint spraying vehicle, and belongs to the technical field of fire extinguishing. The device is a combined pneumatic-water spray fire extinguisher which is additionally arranged on the side walls at two sides and consists of a six-shuttle-hole nozzle, three V-shaped spray holes, an annular gas circuit cavity, a central water inlet hole, a spray hole group, a gas-water mixed atomization cavity and the like on the basis of the existing fire alarm system, a fire-fighting low-pressure water pump and water pipe, a compressed air pipeline and an automobile foundation of a paint spray booth. When a fire occurs on site, a fire alarm system transmits a fire signal to a fire-fighting low-pressure water pump and a solenoid valve and simultaneously opens a compressed air supply system and a fire-fighting low-pressure water supply system, low-pressure compressed air and original low-pressure fire-fighting water respectively enter a combined compressed air-water spray fire extinguisher to be premixed, and then an omnibearing compressed air-water superfine air water curtain which has thinner fog drops and larger atomization range and covers the bottom fire source root and the whole space is formed through a horizontally-oriented six-shuttle-hole nozzle and three V-shaped spray holes at the oblique fire source root to extinguish the fire, as shown in the attached drawing.
Description
Technical Field
The application relates to the technical field of extinguishment, in particular to a paint spraying car pushing air water spraying fire extinguishing device.
Background
In an automobile paint spray booth, more combustible liquid and ignition sources exist, and the fire risk is high.
The high-pressure water mist has the advantages of efficient fire extinguishing, environmental protection, no toxicity, no conductivity, low water consumption, simple operation and maintenance and the like, and is increasingly paid more attention and applied by people in the fire extinguishing of an automobile paint spray booth. However, in practical applications, high pressure water mist still has some problems: for example, the pipelines, nozzles, fittings and water pumps of the high-pressure system have high working pressure and relatively high manufacturing cost; the requirement on water quality is high and absolutely stable, and if the water quality is poor, the nozzle can be blocked, so that the performance of the nozzle can be influenced, and the nozzle can be damaged; at present, high-pressure water mist nozzles produced by our country cannot meet the design requirements, and meanwhile, when the high-pressure water mist is used for extinguishing fire in an automobile paint spray booth, a spray fire extinguishing device is mostly installed on the upper portion to vertically spray downwards, the water mist cannot penetrate through shelters such as an automobile body and cannot cover a fire source under obstacles such as an automobile bottom, the water mist and the fire source cannot directly act, and the fire extinguishing effect is poor.
Disclosure of Invention
In order to make up for the defects, the invention provides a compressed air and water spray fire extinguishing device under a paint spraying vehicle, aiming at solving the defects and improving the fire extinguishing effect.
The invention realizes the technical purpose by the following technical means:
a compressed air-water spray fire-extinguishing device under a paint spray booth vehicle comprises a combined compressed air-water spray fire-extinguishing device, a water pipe, a compressed air pipeline, an electromagnetic valve and the like which are newly configured, and a fire alarm system, a fire-fighting low-pressure water pump, a water pipe, a compressed air pipeline, a vehicle to be painted and the like which are arranged in the paint spray booth.
The multi-group combined type compressed air water spray fire extinguisher comprises one combined type compressed air water spray fire extinguisher arranged on the side walls of the two sides of the vehicle, and the group number is determined according to the maximum vehicle body length of the paint spray booth.
The combined compressed air and water spray fire extinguisher comprises a water inlet hole, an air inlet hole, a water inlet center hole, an annular air path cavity, a conical contraction cavity, an air jet hole group, an air-water mixing atomization cavity, a six-shuttle-hole nozzle, three V-shaped spray holes and the like.
The gas-water mixed atomization cavity comprises a front section gradually-expanding cavity, a middle cylindrical cavity, a middle section gradually-expanding cavity, a rear section cylindrical cavity and the like, wherein the front section gradually-expanding cavity, the middle cylindrical cavity and the middle section gradually-expanding cavity are connected with the periphery of the annular gas circuit cavity, the center of the front section gradually-expanding cavity is connected with a conical contraction cavity, the rear section cylindrical cavity is connected with a six-shuttle-hole nozzle and three V-shaped spray holes, and the inner diameter of the annular gas circuit cavity is changed along with the outer diameter of the mixed atomization cavity.
The minimum aperture of the conical shrinkage cavity is 2-3 mm and is communicated with the center of the gas-water mixed atomization cavity, the jet hole group comprises two rows of 4-6 jet holes with front section gradually expanding cavities and middle cylindrical cavity pipe walls, the aperture of each jet hole is 2-4 mm, and the jet holes are uniformly distributed along the circumference and are vertical to the pipe walls.
The six-shuttle-hole nozzle comprises an inner fluid transition section, a hemispherical shell and six shuttle-hole. The inner fluid transition section is a cylinder with an inlet and gradually changed into a hemisphere, and the outer surface of the hemisphere is the outer surface of the hemisphere. The six fusiform holes are formed by uniformly arranging 6 fusiform holes in a star shape on a hemispherical shell. The outer surface of the fusiform hole is fusiform, the inner surface of the fusiform hole is oval, the major axis of the fusiform hole is equal to the radius of a hemispherical surface, the minor axis of the fusiform hole is 1-4 mm, the inner surface and the outer surface of the fusiform hole are chamfered at 15-35 degrees, and water and air flow sequentially passes through the cylinder and the hemispherical body to be sprayed out from 6 fusiform holes. The six-shuttle-hole nozzle is in threaded connection with the shell of the combined compressed air water spray fire extinguisher.
The three V-shaped spray holes are arranged in the shell of the combined type compressed air and water spray fire extinguisher and comprise three V-shaped slotted holes, a short cylinder shell and an inner fluid transition section. The V-shaped groove holes are composed of horizontal V-shaped grooves, vertical V-shaped grooves and connecting sections, the inner fluid transition section is a cylinder with an inlet and gradually changed into a hemisphere, the three V-shaped groove holes are uniformly distributed along the circular plane part of the short cylinder shell in a Y shape and penetrate through the spherical inner surface of the inner fluid transition section, and the Y-shaped center is superposed with the middle point of the circular shell of the nozzle face. The horizontal V-shaped groove is positioned at the outer section of the center of the Y shape, the two inclined planes are symmetrical by the central section of the full length of the nozzle, the length of the two inclined planes is 3/4-4/5 of the radius of a circular shell of the nozzle face, and the vertex angle is 50-60 degrees; the length of the vertical V-shaped groove and the length of the connecting section are about 1/4-1/5 of the radius of the circular shell of the nozzle surface, and the height of the horizontal V-shaped groove is equal to that of the vertical V-shaped groove.
The six-shuttle-hole nozzle and the three V-shaped spray holes are vertically arranged on the combined compressed air-water spray fire extinguisher, the six-shuttle-hole nozzle is positioned at the upper part and is in threaded connection with the mixed atomization cavity, and the center line of the nozzle is a horizontal line; the three V-shaped spray holes are positioned at the lower part, and the included angle alpha between the jet line and the horizontal line is 20-40 degrees.
The combined compressed air water spray fire extinguisher is arranged on the side walls at two sides of the upper half range below the vehicle body, the upper nozzle simultaneously points to the center of the chassis of the paint spraying vehicle horizontally, the electromagnetic valve is arranged in a compressed air inlet pipeline and is in signal connection with a fire alarm system, and the newly-added water pipe is connected with a fire-fighting low-pressure pump and a water pipe linked with the original fire-fighting alarm system.
In the implementation process, when a fire occurs on site, the fire alarm system transmits a fire signal to the fire-fighting low-pressure water pump and the solenoid valve and simultaneously opens the compressed air supply and fire-fighting low-pressure water supply system, compressed air enters the air-water mixed atomization cavity after passing through the air inlet hole, the annular air passage cavity and the air jet hole group of the combined type compressed air-water spray fire extinguisher, fire-fighting low-pressure water enters the air-water mixed atomization cavity after passing through the water inlet hole, the water inlet center hole and the conical contraction cavity of the combined type compressed air-water spray fire extinguisher, and after compressed air supply and fire-fighting low-pressure water in the air-water mixed atomization cavity are mixed, air-water mixture carries out all-dimensional compressed air-water superfine water spray fire extinguishing on a fire source in a horizontal and oblique jet flow combination mode from the six-shuttle-hole nozzle and the three-V-shaped jet holes.
By adopting the technical scheme of the invention, the following beneficial effects can be obtained:
firstly, all the advantages of the existing high-pressure water mist fire extinguishing are maintained; secondly, compressed air water superfine water mist generated by the combined compressed air water spray fire extinguisher arranged on the side wall in a horizontal and oblique jet flow combined mode is adopted to fully cover all spaces under the barriers such as under the vehicle, and directly acts with fire sources in all spaces under the barriers such as under the vehicle, so that the action range is large, the mist drops are thinner, and the fire extinguishing effect is better; thirdly, the compressed air and the fire fighting water are both low pressure, and the system cost is relatively low; the diameter of the water outlet of the spray hole is increased, the requirement on water quality is low, and the spray nozzle is not easy to block.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic view of the composition of a fire extinguishing apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic sectional view of the structure of the combined type compressed air and water spray fire extinguisher provided by the embodiment of the application.
Fig. 3 is a schematic cross-sectional view of a six-shuttle orifice nozzle structure provided in an embodiment of the present application.
FIG. 4 is a schematic side view of a six-shuttle orifice nozzle configuration provided by an embodiment of the present application.
Fig. 5 is a schematic partial view of the combined type compressed air and water spray extinguisher a provided in the embodiment of the present application.
In the figure: 1. a combined compressed air water spray fire extinguisher; 11. a water inlet hole; 12. air inlet holes, 13 and a water inlet center hole; 14. an annular gas circuit cavity; 15. a tapered narrowing cavity; 16. a group of air injection holes; 17. a gas-water mixing atomization cavity; 171. a front section gradually expanding cavity; 172. a middle cylindrical cavity; 173. a middle section gradually expanding cavity; 174 a rear cylindrical cavity; 18. a six shuttle hole nozzle; 181. an external thread; 182. an inner fluid transition section; 183. an outer hexagonal bolt; 184. a hemisphere housing; 185. a shuttle-shaped hole; 19. three V-shaped spray holes; 191. a V-shaped slot; 192. a vertical V-shaped groove; 193. a horizontal V-shaped groove; 194. a short barrel housing; 2. a nozzle centerline; 3. an automobile; 4. the ground of a paint spray booth; 5. the side wall body of the paint spray booth; 6. a water pipe; 7. a compressed air line; 8. a fire-fighting low-pressure water pump; 9. an electromagnetic valve.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, a fire extinguishing apparatus with compressed air and water spray under a paint spraying vehicle includes a newly configured water pipe (6), a compressed air pipeline (7) and a solenoid valve (9), a plurality of groups of combined compressed air and water spray extinguishers (1), and a fire alarm system, a fire-fighting low-pressure water pump (8), a water pipe (6), a compressed air pipeline (7), a vehicle to be painted (3) and the like of the existing paint spraying vehicle to form a combined compressed air and water spray with horizontal and oblique jet combination for fire extinguishing. The multi-group combined type compressed air water spray fire extinguisher comprises one combined type compressed air water spray fire extinguisher arranged on the side walls of the two sides of the vehicle, and the group number is determined according to the maximum vehicle body length of the paint spray booth.
Referring to fig. 2, the combined compressed air and water spray fire extinguisher (1) comprises a water inlet hole (11), an air inlet hole (12), a water inlet central hole (13), an annular air path cavity (14), a conical contraction cavity (15), an air injection hole group (16), an air-water mixed atomization cavity (17), a six-shuttle-hole nozzle (18), three V-shaped spray holes (19) and the like. The gas-water mixing atomization cavity (17) comprises a front section gradually-expanding cavity (171), a middle cylindrical cavity (172), a middle section gradually-expanding cavity (173), a rear section cylindrical cavity (174) and the like, the front section gradually-expanding cavity (171), the middle cylindrical cavity (172), the periphery of the middle section gradually-expanding cavity (173) is connected with an annular gas circuit cavity (14), the center of the front section gradually-expanding cavity (171) is connected with a conical contraction cavity (15), and the rear section cylindrical cavity is connected with a six-shuttle-hole nozzle (18) and a three-V-shaped spray hole (19). The inner diameter of the annular gas path cavity (14) is changed along with the outer diameter of the mixing and atomizing cavity. The minimum aperture of the conical contraction cavity (15) is 2-3 mm and is communicated with the center of the gas-water mixing atomization cavity (17). The jet hole group (16) comprises two rows of 4-6 jet holes with front section gradually expanding cavities and middle cylindrical cavity pipe walls, the aperture of each jet hole is 2-4 mm, and the jet holes are uniformly distributed along the circumference and are vertical to the pipe walls.
Referring to fig. 3 and 4, the six-shuttle-hole nozzle (18) includes an internal fluid transition section (182), a hemispherical shell (184), and six shuttle-holes (185). The inner fluid transition section (182) is a cylinder with an inlet and gradually changed into a hemisphere, and the outer surface of the hemisphere is the outer surface of the hemisphere in the shape of the hemisphere shell (184). The six fusiform holes (185) are formed by uniformly arranging 6 fusiform holes in a star shape on a hemispherical shell (184). The outer surface of the fusiform hole (185) is fusiform, the inner surface of the fusiform hole is oval, the major axis of the fusiform hole is equal to the radius of a hemispherical surface, the minor axis of the fusiform hole is 1-4 mm, the inner surface and the outer surface of the fusiform hole are chamfered at 15-35 degrees, and water and air flow sequentially passes through the cylinder and the hemisphere to be sprayed out from 6 fusiform holes. The six-shuttle-hole nozzle (18) is connected with the shell of the combined compressed air and water spray fire extinguisher by threads (181).
Referring to fig. 5, the three V-shaped orifices (19) are disposed in the housing of the combined compressed air/water spray fire extinguisher, and include three V-shaped slots (191), a short tube housing (194), and an internal fluid transition section. The V-shaped groove holes (191) are composed of horizontal V-shaped grooves (193), vertical V-shaped grooves (192) and connecting sections, the inner fluid transition section is a cylinder with an inlet and gradually changed into a hemisphere, the three V-shaped groove holes (191) are uniformly distributed along the circular plane part of the short cylinder shell (194) in a Y shape and penetrate through the spherical inner surface of the inner fluid transition section, and the Y-shaped center is superposed with the middle point of the circular shell of the nozzle face. The horizontal V-shaped groove (193) is positioned at the outer section of the center of the Y shape, the two inclined planes are symmetrical with the central section of the full length of the nozzle, the length is about 3/4-4/5 of the radius of the circular shell of the nozzle surface, and the vertex angle is 50-60 degrees; the length of the vertical V-shaped groove (192) and the connecting section is about 1/4-1/5 of the radius of the circular shell of the nozzle surface, and the height of the horizontal V-shaped groove is equal to that of the vertical V-shaped groove.
In the example, the six-shuttle-hole nozzle (18) and the three V-shaped spray holes (19) are arranged up and down on the combined compressed air water spray fire extinguisher, the six-shuttle-hole nozzle (18) is positioned at the upper part and is in threaded connection with the mixed atomization cavity (17), and the center line (2) of the nozzle is a horizontal line; the three V-shaped spray holes (19) are positioned at the lower part, and the included angle alpha between the central line of the jet flow and the horizontal line is 20-40 degrees. The combined compressed air water spray fire extinguisher (1) is arranged on side walls (5) on two sides of the upper half range below an automobile body (3), an upper nozzle simultaneously points to the center of a chassis of the paint spraying vehicle horizontally, an electromagnetic valve (9) is arranged in a compressed air inlet pipeline (7) and is in signal connection with a fire alarm system, and a newly-added water pipe (6) is connected with a fire-fighting low-pressure water pump (8) linked with an original fire-fighting alarm system and a water pipe.
When a fire occurs on site, a fire alarm system transmits a fire signal to a fire-fighting low-pressure water pump and a solenoid valve and simultaneously starts a compressed air supply and fire-fighting low-pressure water supply system, compressed air enters an air-water mixed atomization cavity after passing through an air inlet, an annular air circuit cavity and an air jet hole group of a combined type compressed air-water spray fire extinguisher, fire-fighting low-pressure water enters the air-water mixed atomization cavity after passing through an air inlet, a water inlet central hole and a conical contraction cavity of the combined type compressed air-water spray fire extinguisher, and after compressed air supply and fire-fighting low-pressure water in the air-water mixed atomization cavity are mixed, an air-water mixture carries out omnibearing compressed air-water superfine water spray fire extinguishing on a fire source in a horizontal and oblique jet flow combined mode through a six-shuttle-hole nozzle and three-V-shaped jet holes. The invention keeps all the advantages of the existing high-pressure water mist fire extinguishing, and the compressed air water ultra-fine water mist generated in the horizontal and oblique jet flow combined mode can directly act on all the spaces under obstacles such as under a vehicle in a full-covering manner, the action range is large, the mist drops are thinner, the fire extinguishing effect is better, the compressed air and fire water are both low pressure, the nozzle is not easy to block, and the use is convenient.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a spray booth car is compressed air water spray extinguishing device down, includes the existing fire alarm system in spray booth, fire control low pressure water pump (8) and water pipe (6), treat the car (3) that spray paint, and newly dispose combination formula spray booth (1) of compressed air water spray of installing on the first both sides side wall of vehicle bottom to and compressed air pipeline (7) and solenoid valve (9) etc. form that the fog drops is thinner, the bigger all-round pressure air water superfine air water curtain that covers vehicle bottom flame source root and whole space of atomizing scope puts out a fire.
2. The under-draft compressed air water spray fire extinguishing device for the paint spray booth vehicle as claimed in claim 1, wherein the multiple groups of combined compressed air water spray fire extinguishers (1) comprise one combined compressed air water spray fire extinguisher arranged on the side walls of the two sides of the vehicle, and the number of groups is determined according to the maximum vehicle body length of the paint spray booth; the combined compressed air water spray fire extinguisher (1) comprises a water inlet hole (11), an air inlet hole (12), a water inlet central hole (13), an annular air path cavity (14), a conical contraction cavity (15), an air injection hole group (16), an air-water mixed atomization cavity (17), a six-shuttle-hole nozzle (18), three V-shaped spray holes (19) and the like.
3. The fire extinguishing device with compressed air and water spray for the paint spraying workshop as claimed in claims 1 and 2, wherein the air-water mixing atomization cavity (17) comprises a front section gradually expanding cavity (171), a middle cylindrical cavity (172), a middle section gradually expanding cavity (173), a rear section cylindrical cavity (174) and the like, the peripheries of the front section gradually expanding cavity (171), the middle cylindrical cavity (172) and the middle section gradually expanding cavity (173) are connected with the annular gas circuit cavity (14), the center of the front section gradually expanding cavity (171) is connected with the conical contraction cavity (15), the rear section cylindrical cavity (174) is connected with the six-shuttle-hole nozzle (18) and the three V-shaped spray holes (19), and the inner diameter of the annular gas circuit cavity (14) is changed along with the outer diameter of the mixing atomization cavity.
4. The compressed air water spray fire extinguishing device under the paint spray booth vehicle as claimed in claims 1, 2, 3, wherein the minimum aperture of the conical contraction cavity (15) is 2-3 mm, and is communicated with the center of the air water mixing atomization cavity (17); the jet hole group (16) comprises two rows of 4-6 jet holes with front sections of gradually expanding cavities (171) and middle cylindrical cavity pipe walls (172), the aperture of each jet hole is 2-4 mm, and the jet holes are uniformly distributed along the circumference and perpendicular to the pipe walls.
5. The fire extinguishing device for the compressed air water spray under the paint spray booth according to the claim 1 and 2, characterized in that the six shuttle hole nozzles (18) comprise an internal fluid transition section (182), a hemispherical shell (184) and six shuttle holes (185); the inner fluid transition section (182) is a cylinder with an inlet and gradually changed into a hemisphere, and the shape of the hemispherical shell (184) is hemispherical; the six fusiform holes (185) are formed by uniformly arranging 6 fusiform holes in a star shape on a hemispherical shell (184); the outer surface of the fusiform hole (185) is fusiform, the inner surface of the fusiform hole is oval, the major axis of the fusiform hole is equal to the radius of a hemispherical surface, the minor axis of the fusiform hole is 1-4 mm, the inner surface and the outer surface of the fusiform hole are chamfered at 15-35 degrees, and water and air flow sequentially passes through the cylinder and the hemisphere to be sprayed out from 6 fusiform holes; the six-shuttle-hole nozzle (18) is connected with the shell of the combined compressed air water spray extinguisher by threads (181).
6. The compressed air water spray fire extinguishing device under the paint spray booth vehicle as claimed in claim 1 and 2, wherein the three V-shaped spray holes (19) are arranged in the combined compressed air water spray fire extinguisher shell, and comprise three V-shaped slotted holes (191), a short barrel shell (194) and an internal fluid transition section; the V-shaped slotted hole (191) consists of a horizontal V-shaped groove (193), a vertical V-shaped groove (192) and a connecting section, the inner fluid transition section is a cylinder with an inlet gradually changed into a hemisphere, three V-shaped slotted holes (191) are uniformly distributed along the circular plane part of the short cylinder shell (194) in a Y shape and penetrate through the spherical inner surface of the inner fluid transition section, and the Y-shaped center is superposed with the middle point of the circular shell of the nozzle face; the horizontal V-shaped groove (193) is positioned at the outer section of the center of the Y shape, the two inclined planes are symmetrical by the central section of the full length of the nozzle, the length of the two inclined planes is about 3/4-4/5 of the radius of a circular shell of the nozzle face, and the vertex angle is 50-60 degrees; the length of the vertical V-shaped groove (192) and the length of the connecting section are about 1/4-1/5 of the radius of the circular shell of the nozzle surface, and the height of the horizontal V-shaped groove is equal to that of the vertical V-shaped groove.
7. The under-draft compressed air water spray fire extinguishing device for the paint spray booth according to claims 1 and 2, wherein the six-shuttle-hole nozzle (18) and the three V-shaped spray holes (19) are arranged up and down, the six-shuttle-hole nozzle (18) is arranged above and is in threaded connection with the mixed atomizing cavity (17), and the center line (2) of the nozzle is horizontal; the three V-shaped spray holes (19) are arranged downwards and are inclined to the root of the fire source, and the included angle alpha between the jet line and the horizontal line is 20-40 degrees, so that an omnibearing pressurized-water superfine air water curtain covering the root of the vehicle bottom fire source and the whole space is formed for extinguishing fire.
8. The compressed air water spray fire extinguishing device under the paint spraying vehicle as claimed in claim 1, characterized in that the combined compressed air water spray fire extinguisher (1) is installed on the side walls (5) at the two sides of the upper half range below the vehicle body (3), the upper nozzle is simultaneously and horizontally directed to the center of the chassis of the paint spraying vehicle, the electromagnetic valve (9) is installed in the compressed air inlet pipeline (7) and is in signal connection with the fire alarm system, and the newly-added water pipe (6) is connected with the fire-fighting low-pressure water pump (8) and the water pipe linked with the original fire-fighting alarm system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211360661.6A CN115970210A (en) | 2022-11-02 | 2022-11-02 | Compressed air and water spray fire extinguishing device under paint spraying vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211360661.6A CN115970210A (en) | 2022-11-02 | 2022-11-02 | Compressed air and water spray fire extinguishing device under paint spraying vehicle |
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| CN115970210A true CN115970210A (en) | 2023-04-18 |
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| CN202211360661.6A Pending CN115970210A (en) | 2022-11-02 | 2022-11-02 | Compressed air and water spray fire extinguishing device under paint spraying vehicle |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114151083A (en) * | 2021-10-29 | 2022-03-08 | 淮北矿业股份有限公司 | Coal mining machine compressed air and low-pressure water spray air water curtain dust settling device |
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| JP2005046769A (en) * | 2003-07-30 | 2005-02-24 | Kyoritsu Gokin Co Ltd | Spray nozzle and spray method using it |
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| CN114151083A (en) * | 2021-10-29 | 2022-03-08 | 淮北矿业股份有限公司 | Coal mining machine compressed air and low-pressure water spray air water curtain dust settling device |
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