CN109966684B - Novel solid foam extinguishing agent spray gun - Google Patents
Novel solid foam extinguishing agent spray gun Download PDFInfo
- Publication number
- CN109966684B CN109966684B CN201910326429.2A CN201910326429A CN109966684B CN 109966684 B CN109966684 B CN 109966684B CN 201910326429 A CN201910326429 A CN 201910326429A CN 109966684 B CN109966684 B CN 109966684B
- Authority
- CN
- China
- Prior art keywords
- filter screen
- tank body
- solid foam
- extinguishing agent
- spray gun
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 55
- 239000008259 solid foam Substances 0.000 title claims abstract description 42
- 239000007921 spray Substances 0.000 title claims abstract description 18
- 238000003825 pressing Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000003139 buffering effect Effects 0.000 claims abstract description 8
- 239000006260 foam Substances 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 25
- 238000003466 welding Methods 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000012634 fragment Substances 0.000 claims description 4
- 230000001788 irregular Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims 6
- 238000005187 foaming Methods 0.000 abstract description 14
- 239000007787 solid Substances 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 3
- 239000004480 active ingredient Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 description 9
- 239000008258 liquid foam Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000012086 standard solution Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 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
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/02—Making of fire-extinguishing materials immediately before use of foam
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a novel solid foam fire extinguishing agent spray gun, which comprises a tank body, wherein the tank body is connected with an inlet pipeline and an outlet pipeline, a kettle cover is arranged on the left side of the tank body, the kettle cover is connected with the tank body through threads, a filter screen is arranged in the tank body, a first pressing sheet is arranged on the left side of the filter screen, a second pressing sheet is arranged on the right side of the filter screen, a thin buffering pressing sheet is arranged on the right side of the second pressing sheet, a sheet-shaped keel bracket is arranged on the outer side of the filter screen, and a feed inlet is arranged on the right side of the top of the tank body. When the solid foam extinguishing agent is used, the active ingredients in the solid foam extinguishing agent are quickly dissolved and released into water flowing through the solid foam extinguishing agent, so that the solid foam extinguishing agent can be quickly released when meeting water and mixed for foaming, and the aim of foaming and extinguishing can be fulfilled; the solid fire extinguishing agent is convenient and fast to fill, high in foaming efficiency, controllable in foaming multiple and spraying distance, reduces the carrying capacity of the fire engine, reduces the attendance times of the fire engine, and can be widely applied to places such as airports, oil fields and the like.
Description
Technical Field
The invention relates to the technical field of fire-fighting tools, in particular to a novel solid foam extinguishing agent spray gun.
Background
Foam extinguishing agents are agents that are miscible with water and that produce foam by mechanical or chemical reaction to extinguish a fire. The foam extinguishing agent generally comprises a foaming agent, a foam stabilizer, a viscosity reducer, an anti-freezing agent, a cosolvent, a preservative and water. The fire extinguishing agent is mainly used for extinguishing water-insoluble combustible liquid and general solid fire.
Most of the existing foam extinguishing agents are liquid foam extinguishing agents, the filling weight is large, the carrying is inconvenient, the foaming rate is low, and the extinguishing efficiency is affected.
Disclosure of Invention
In order to solve the problems presented in the background art, the inventor develops a novel solid foam fire extinguishing agent spray gun in long-term production practice.
The core component in the foam extinguishing agent is a surfactant, the content of the active component in the surfactant in the common liquid foam extinguishing agent concentrate is about 1.2-1.8%, the liquid foam extinguishing agent concentrate is mixed with water according to a certain proportion (3% or 6%) before extinguishment for foaming and spraying, wherein the actual mass concentration of the surfactant in the foam liquid is only 0.72-1.08 per mill. The inventor found that the foam liquid carrying capacity of a single fire truck is estimated to be 3 tons, wherein the effective component of the surfactant is about 45-60 kg. If the foam fire extinguishing agent concentrate is made into solid, the surfactant content accounts for most (90%), and a single fire engine only needs to be provided with 50-67 kg of solid foam fire extinguishing agent, which is equivalent to 3 tons of liquid foam. The load of the fire truck can be obviously reduced, and the acceleration and the operation performance of the fire truck can be improved, so that more time is striven for fire rescue.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a novel solid foam fire extinguishing agent spray gun, includes the jar body, jar body one end is connected with inlet channel, and the other end is connected with outlet channel, the cauldron lid is installed in jar body left side, the cauldron lid is in the same place with jar body coupling through the screw thread, inlet channel is in the same place with the cauldron lid through the screw thread, the filter screen is internally mounted to jar body, first preforming is installed in the filter screen left side, the second preforming is installed on the filter screen right side, thin buffering preforming is installed on the second preforming right side, sheet fossil fragments support is installed in the filter screen outside, jar body top right side is equipped with the charge door.
Furthermore, the tank body can effectively ensure that the sealing performance of the structure is good.
Further, the first tablet consists of 2 tablets of the same size.
Further, the first pressing piece and the second pressing piece are connected with the sheet-shaped keel bracket through welding, the first pressing piece and the second pressing piece are connected with the filter screen through welding, and the thin buffering pressing piece is connected with the second pressing piece through welding.
Further, the filter screen is loudspeaker-shaped, uses the filter screen central line as standard, to the one end that first preforming extends, the diameter of circle grow gradually, to the one end that second preforming extends, the diameter of circle diminishes gradually.
Further, the solid foam extinguishing agent is filled in the cavity between the tank body and the filter screen, the pore space of the filter screen is extremely small, the solid foam extinguishing agent cannot fall into the filter screen, when water flows through the filter screen, the solid foam extinguishing agent at the pore space of the filter screen is gradually dissolved in contact with the water flow, so that foam liquid with uniform concentration is formed, and the specification of the water flow size and the mesh number of the filter screen can influence the concentration of the foam liquid.
Further, the outlet pipeline is provided with three large-diameter parts with the same pipe diameter, a first small-diameter part and a second small-diameter part are respectively arranged between two adjacent large-diameter parts, and the pipe diameter of the second small-diameter part is larger than that of the first small-diameter part.
Further, the top and the bottom of the flaky fossil fragments support are provided with irregular grooves, and the irregular grooves provide space for filling solid foam extinguishing agent; meanwhile, the filter screen, the flaky keel bracket and the thin buffering tablet can be conveniently taken out of the tank body.
Further, a rubber ring is arranged between the top of the tank body and the first pressing sheet.
Further, the tank body, the inlet pipeline and the outlet pipeline are made of stainless steel.
Further, a plug is arranged at the charging port.
Further, the application method of the novel solid foam extinguishing agent spray gun comprises the following steps: the solid foam fire extinguishing agent is added into the cavity between the tank body and the filter screen through the charging hole, the water pump is started, water flows through the filter screen, the solid foam fire extinguishing agent is contacted and dissolved with pores on the water flow filter screen, and foam liquid is foamed and sprayed out through the outlet pipeline.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the flake-shaped keel bracket and the filter screen are arranged in the tank body, so that the solid foam extinguishing agent can be well filled in the tank body, and the solid foam extinguishing agent is gradually dissolved under the scouring action of water flow to form foam liquid with uniform concentration, thereby achieving the aim of foaming and extinguishing fire; the solid foam fire extinguishing agent is convenient and fast to fill, high in foaming efficiency and controllable in foaming multiple and spraying distance, reduces the carrying capacity of the fire engine, reduces the attendance times of the fire engine, and can be widely applied to places such as airports, oil fields and the like.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic structural view of the portion a.
Fig. 3 is a schematic structural view of the can body.
Fig. 4 is a side view of the canister.
Fig. 5 is a schematic view of the structure of the sheet keel support and the filter screen.
Figure 6 is a side view of a sheet keel support and filter screen.
Fig. 7 is a schematic view of the outlet pipe structure.
Reference numerals: 1, an inlet pipeline, 2, a kettle cover, 3, a rubber ring, 4, a tank body, 5, a filter screen, 6, a plug, 7, a feed inlet, 8, an outlet pipeline, 9, a first pressing sheet, 10, a sheet-shaped keel bracket, 11, a second pressing sheet, 12, a thin buffer pressing sheet, 801, a large diameter part, 802, a first small diameter part, 803 and a second small diameter part.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments; all other embodiments, modifications, equivalents, improvements, etc., which are apparent to those skilled in the art without the benefit of this disclosure, are intended to be included within the scope of this invention.
Example 1
Embodiment 1 provides a novel solid foam fire extinguishing agent spray gun, as shown in fig. 1-7, including a tank body 4, tank body 4 one end is connected with inlet channel 1, and the other end is connected with outlet channel 8, tank body 4 installs kettle cover 2 in the left side, kettle cover 2 is in the same place through the screw thread with tank body 4 connection, inlet channel 1 is in the same place through screw thread with kettle cover 2 connection, tank body 4 internally mounted has filter screen 5, first preforming 9 is installed in filter screen 5 left side, second preforming 11 is installed on filter screen 5 right side, thin buffering preforming 12 is installed on second preforming 11 right side, sheet fossil fragments support 10 is installed in the filter screen 5 outside, tank body 4 top right side is equipped with charge door 7.
In this embodiment, the first preform 9 consists of 2 preforms of the same size; the first pressing piece 9 and the second pressing piece 11 are connected with the sheet-shaped keel bracket 10 through welding, the first pressing piece 9 and the second pressing piece 11 are connected with the filter screen 5 through welding, and the thin buffering pressing piece 12 and the second pressing piece 11 are connected through welding; the solid foam extinguishing agent is filled in the cavity between the tank body 4 and the filter screen 5, the pore space of the filter screen 5 is extremely small, the solid foam extinguishing agent cannot fall into the filter screen 5, when water flows through the filter screen 5, the solid foam extinguishing agent at the pore space of the filter screen 5 is gradually dissolved in contact with the water flow, so that foam liquid with uniform concentration is formed, and the concentration of the foam liquid can be influenced by the specification of the water flow size and the mesh number of the filter screen.
In this embodiment, the top and bottom of the sheet keel support 10 are provided with irregular grooves, which provide space for filling the solid foam extinguishing agent, and simultaneously facilitate the removal of the filter screen 5, the sheet keel support 10 and the thin cushioning tablet 12 from the tank 4.
In this embodiment, a rubber ring 3 is installed between the top of the tank 4 and the first pressing piece 9.
In this embodiment, the material of the tank 4, the inlet pipe 1 and the outlet pipe 8 is stainless steel.
In this embodiment, the charging port 7 is provided with a plug 6.
As shown in fig. 3 and 4, the tank body 4 can effectively ensure good sealing performance of the structure.
As shown in fig. 5 and 6, the filter screen 5 is in a horn shape, and the diameter of the circle is gradually increased toward one end extending toward the first pressing piece 9 and gradually decreased toward one end extending toward the second pressing piece 11, based on the center line of the filter screen 5.
As shown in fig. 7, the outlet pipe 8 is provided with three large diameter portions 801 having the same pipe diameter, a first small diameter portion 802 and a second small diameter portion 803 are respectively provided between two adjacent large diameter portions, and the pipe diameter of the second small diameter portion 803 is larger than that of the first small diameter portion 802. Because the pipe diameters are different, the flow velocity and the resistance of the foam liquid in each pipe diameter are also different, and the pipe diameter design can further improve the foaming effect.
Example 2
The embodiment 2 provides a use method of a novel solid foam fire extinguishing agent spray gun, firstly, a welded filter screen 5, a flaky keel bracket 10 and a thin buffer pressing piece 12 are installed in a tank body 4, a kettle cover 2 is screwed down, then a plug 6 is opened, solid foam fire extinguishing agent is added into a cavity between the tank body 4 and the filter screen 5 through a charging hole 7, the kettle cover 2 is connected with an inlet pipeline 1, an outlet pipeline 8 is connected with the tank body 4, and the water inlet pipeline 1 is connected with a fire hydrant or a water pump by adopting a quick connector.
In this example, the mesh number of the filter screen 5 is 100 mesh, the mass of the solid foam fire extinguishing agent added through the feed inlet 7 is 50 g, when the water flow with the flow rate of 6.25mL/s passes through the filter screen 5, the solid foam fire extinguishing agent is separated from the water flow by the filter screen 5, the solid foam fire extinguishing agent is only contacted with the water flow at the pores of the filter screen 5 to be gradually dissolved, so that foam liquid with the mass concentration of the surfactant of 12.5 per mill is formed, the foaming multiple is 8.2 times, the foam liquid can be spread on the oil surface, the 25% liquid separation time is 3 minutes and 40 seconds, the effective release time is 10 minutes, the fire extinguishing time is 47 seconds, and the burning resistant time is 14 minutes and 30 seconds.
The method for testing the mass concentration of the foam liquid is a standard curve method, namely, the surfactant is prepared into standard solutions with different mass concentrations, the surface tension of each standard solution is tested, a standard curve is drawn, the surface tension of the foam liquid is tested, and the mass concentration of the foam liquid is directly read out on the standard curve.
The foaming times, the liquid separation time, the fire extinguishing time and the burning resistance time are tested according to the annex 1 ' small test method ' in GB15308-2006 foam extinguishing agent '.
The effective release time refers to the duration of the foam liquid with qualified performance sprayed by the spray gun, the standard of qualified performance is that the mass concentration of the surfactant in the foam liquid is not lower than 1 per mill, the foaming multiple is not lower than 5 times, and the 25% liquid separation time is not lower than 3 minutes and 30 seconds, so that the foam liquid can be spread on the oil surface.
Example 3
Example 3 provides a method for using a novel solid foam fire extinguishing agent spray gun, which is different from example 2 in that the mesh number of the filter screen 5 is 150, the mass of the solid foam fire extinguishing agent added through the feed inlet 7 is 50 g, the flow rate of water flow is 12.5mL/s, the mass concentration of the surfactant in the formed foam liquid is 5.4 per mill, the foaming multiple is 7.8 times, the foam liquid can be spread on an oil surface, the 25% liquid separation time is 3 minutes and 30 seconds, the effective release time is 12 minutes, the fire extinguishing time is 50 seconds, and the burning resistant time is 12 minutes and 30 seconds.
The above embodiments are preferred embodiments of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed.
Claims (7)
1. The utility model provides a novel solid foam fire extinguishing agent spray gun, includes a jar body, its characterized in that: the novel energy-saving tank is characterized in that one end of the tank body is connected with an inlet pipeline, the other end of the tank body is connected with an outlet pipeline, a tank cover is arranged on the left side of the tank body and connected with the tank body through threads, the inlet pipeline is connected with the tank cover through threads, a filter screen is arranged in the tank body, a first pressing sheet is arranged on the left side of the filter screen, a second pressing sheet is arranged on the right side of the filter screen, a thin buffering pressing sheet is arranged on the right side of the second pressing sheet, a sheet-shaped keel bracket is arranged on the outer side of the filter screen, and a charging hole is formed in the right side of the top of the tank body;
The first pressing piece and the second pressing piece are connected with the sheet-shaped keel bracket through welding, the first pressing piece and the second pressing piece are connected with the filter screen through welding, and the thin buffering pressing piece is connected with the second pressing piece through welding;
The filter screen is loudspeaker shape to the filter screen central line is standard, to the one end that first preforming extends, the diameter of circle grow gradually, to the one end that second preforming extends, the diameter of circle diminishes gradually, slice fossil fragments support top and bottom are equipped with irregular recess.
2. A novel solid foam fire suppression agent spray gun according to claim 1, wherein: the first tablet consists of 2 tablets of the same size.
3. A novel solid foam fire suppression agent spray gun according to claim 1, wherein: the outlet pipeline is provided with three large-diameter parts with the same pipe diameter, and a first small-diameter part and a second small-diameter part are respectively arranged between two adjacent large-diameter parts.
4. A novel solid foam fire suppression agent spray gun according to claim 1, wherein: and a rubber ring is arranged between the top of the tank body and the first pressing sheet.
5. A novel solid foam fire suppression agent spray gun according to claim 1, wherein: the material of the tank body, the inlet pipeline and the outlet pipeline is stainless steel.
6. A novel solid foam fire suppression agent spray gun according to claim 1, wherein: and the charging port is provided with a plug.
7. A method of using the novel solid foam fire suppression agent spray gun of any one of claims 1-6, characterized by: the solid foam fire extinguishing agent is added into the cavity between the tank body and the filter screen through the charging hole, the water pump is started, water flows through the filter screen, the solid foam fire extinguishing agent is contacted and dissolved with pores on the water flow filter screen, and foam liquid is foamed and sprayed out through the outlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326429.2A CN109966684B (en) | 2019-04-23 | 2019-04-23 | Novel solid foam extinguishing agent spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326429.2A CN109966684B (en) | 2019-04-23 | 2019-04-23 | Novel solid foam extinguishing agent spray gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109966684A CN109966684A (en) | 2019-07-05 |
| CN109966684B true CN109966684B (en) | 2024-04-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910326429.2A Active CN109966684B (en) | 2019-04-23 | 2019-04-23 | Novel solid foam extinguishing agent spray gun |
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| Country | Link |
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| CN (1) | CN109966684B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110711328A (en) * | 2019-11-15 | 2020-01-21 | 中国民用航空飞行学院 | Novel solid foam gun |
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| CN210057238U (en) * | 2019-04-23 | 2020-02-14 | 中国民用航空飞行学院 | Novel solid foam extinguishing agent spray gun |
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2019
- 2019-04-23 CN CN201910326429.2A patent/CN109966684B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2363743Y (en) * | 1998-11-20 | 2000-02-16 | 傅玉祥 | Mechanical ejection gun for foam extinguisher |
| JP2010131334A (en) * | 2008-12-08 | 2010-06-17 | Fukada Kogyo Kk | Fire extinguishing equipment |
| CN101502705A (en) * | 2009-03-19 | 2009-08-12 | 刘欣传 | Handcart type air foam fire extinguisher |
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| CN109966684A (en) | 2019-07-05 |
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