A fully mixable foam generator

Abstract

The utility model belongs to the technical field of foam generator, especially involve a foam generator of full mixing, including liquid inlet flange, the top of liquid inlet flange is welded with liquid inlet pipe, the top of liquid inlet pipe is welded with casing, the inner wall of liquid inlet pipe is fixedly connected with accelerating tube, the top of one end of accelerating tube is fixedly connected with nozzle, through setting fairwater, when the fire, the foam mixed solution that comes from the fixed fire pump is injected into the nozzle through the accelerating tube in the liquid inlet pipe, forms the atomized jet of diffusion, atomized jet breaks the sealed glass through the breakage groove, produces the negative pressure around simultaneously, air enters the inside of casing through the through -hole of foaming plate outer wall, make air mix with foam mixed solution fully through fairwater, so that inhale a large number of air and form air foam, air foam is sprayed from the liquid outlet flange through the liquid outlet pipe, the surface of burning thing is covered with foam steadily, realizes the foam fire extinguishing operation.

Description

Technical Field

[0001] This invention belongs to the field of foam generator technology, and particularly relates to a foam generator that can fully mix foam. Background Technology

[0002] A foam generator is a device used to produce foam and is widely used in fire protection, mining, chemical, environmental protection, and cleaning fields. Its working principle is usually to mix gas and liquid to form stable foam under specific conditions. Foam generators are used by firefighters to extinguish oil fires or solid fires.

[0003] In existing foam generators, the air drawn into the generator creates laminar flow, preventing the air and foam mixture from mixing sufficiently. Therefore, we propose a foam generator that enables thorough mixing. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a foam generator that can fully mix foam, thereby achieving a fully mixing operation in the foam generator.

[0005] In view of this, the present invention provides a foam generator capable of thorough mixing, comprising an inlet flange, an inlet pipe welded to the top of the inlet flange, a shell welded to the top of the inlet pipe, an acceleration pipe fixedly connected to the inner wall of the inlet pipe, a nozzle fixedly connected to the top of one end of the acceleration pipe, a connecting seat fixedly connected to the inner wall of the shell, a guide plate welded to the outer wall of the connecting seat, a foaming plate fixedly connected to one side of the guide plate on the outer wall of the shell, a through hole formed on the outer wall of the foaming plate, a protective cover fixedly connected above the foaming plate on the outer wall of the shell, an outlet pipe welded to the top of the shell, a sealing glass fitted at the connection between the shell and the outlet pipe, a crack groove formed on the outer wall of the sealing glass, and an outlet flange welded to the top of the outlet pipe.

[0006] Based on the above structure, the foam mixture delivered by the fixed fire pump is injected into the nozzle through the acceleration pipe in the inlet pipe, forming a diffused atomized jet. The atomized jet breaks the sealed glass through the rupture groove, and at the same time, a negative pressure is generated around it. Air enters the shell through the through holes on the outer wall of the foaming plate, so that the air is fully mixed with the foam mixture through the guide plate, thereby drawing in a large amount of air to form air foam. The air foam is sprayed out from the outlet flange through the outlet pipe, so that the foam can smoothly cover the surface of the burning material, realizing the foam fire extinguishing operation.

[0007] Preferably, the inlet pipe is vertical and the outlet pipe is right-angled. In this embodiment, this facilitates the cleaning of dust on the outer wall of the foam board.

[0008] Preferably, the inner wall of the acceleration tube is funnel-shaped. In this embodiment, by setting the funnel-shaped acceleration tube, the Venturi effect occurs when the foam mixture inside the acceleration tube flows, thereby accelerating the flow of the foam mixture.

[0009] Preferably, the connecting seat is ring-shaped, and two sets of connecting seats are provided. The connecting seats are perpendicular to the guide plate. In this embodiment, by providing two sets of ring-shaped connecting seats, the stability of the guide plate can be improved.

[0010] Preferably, the guide plates are distributed in a circular pattern at equal angles about the central axis of the shell. In this embodiment, this facilitates the thorough mixing of air with the foam mixture through the guide plates.

[0011] Preferably, the foaming board is cylindrical in shape, and the through holes are equidistantly distributed along the outer wall of the foaming board. In this embodiment, the air intake area is increased, and the mixing efficiency of air and foam mixture is improved.

[0012] Preferably, the protective cover is conical in shape and the crack groove is cross-shaped. In this embodiment, the conical protective cover facilitates comprehensive protection of the foam board, and the cross-shaped crack groove facilitates the rapid cracking of the sealed glass by the atomized jet.

[0013] The beneficial effects of this utility model are: 1. This fully mixed foam generator, by setting a funnel-shaped acceleration tube, causes the foam mixture inside the acceleration tube to flow in a Venturi effect, accelerating the flow of the foam mixture. By setting a conical protective cover, it is beneficial to provide comprehensive protection for the foaming plate. By setting a cross-shaped rupture groove, it is easy for the atomized jet to pass through the rupture groove and quickly rupture the sealed glass.

[0014] 2. This fully mixed foam generator, by setting a guide plate, allows foam mixture delivered by a fixed fire pump to be injected into the nozzle through an acceleration pipe in the inlet pipe when a fire occurs, forming a diffused atomized jet. The atomized jet breaks the sealing glass through the rupture groove, creating a negative pressure around it. Air enters the shell through the through holes on the outer wall of the foaming plate, allowing the air to be fully mixed with the foam mixture through the guide plate, thereby drawing in a large amount of air to form air foam. The air foam is sprayed out from the outlet flange through the outlet pipe, smoothly covering the surface of the burning material, thus achieving foam fire extinguishing operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the front section structure of the shell of this utility model; Figure 4 This is a schematic diagram of the three-dimensional unfolded structure of the guide plate of this utility model.

[0016] The markings in the diagram are as follows: 1. Inlet flange; 2. Inlet pipe; 3. Shell; 4. Accelerator pipe; 5. Nozzle; 6. Connecting seat; 7. Guide plate; 8. Foaming plate; 9. Through hole; 10. Protective cover; 11. Outlet pipe; 12. Sealing glass; 13. Rupture groove; 14. Outlet flange. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0018] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0019] This application discloses a foam generator capable of thorough mixing, comprising an inlet flange 1, an inlet pipe 2 welded to the top of the inlet flange 1, a housing 3 welded to the top of the inlet pipe 2, an acceleration pipe 4 fixedly connected to the inner wall of the inlet pipe 2, a nozzle 5 fixedly connected to the top of one end of the acceleration pipe 4, a connecting seat 6 fixedly connected to the inner wall of the housing 3, a guide plate 7 welded to the outer wall of the connecting seat 6, a foaming plate 8 fixedly connected to one side of the guide plate 7 on the outer wall of the housing 3, a through hole 9 opened on the outer wall of the foaming plate 8, a protective cover 10 fixedly connected above the foaming plate 8 on the outer wall of the housing 3, an outlet pipe 11 welded to the top of the housing 3, a sealing glass 12 fitted at the connection between the housing 3 and the outlet pipe 11, a rupture groove 13 opened on the outer wall of the sealing glass 12, and an outlet flange 14 welded to the top of the outlet pipe 11.

[0020] Based on the above structure, the foam mixture delivered by the fixed fire pump is injected into the nozzle 5 through the acceleration pipe 4 in the inlet pipe 2, forming a diffused atomized jet. The atomized jet breaks the sealing glass 12 through the rupture groove 13, and at the same time generates negative pressure around it. Air enters the interior of the shell 3 through the through hole 9 on the outer wall of the foaming plate 8, so that the air is fully mixed with the foam mixture through the guide plate 7, which disrupts the laminar flow inside the shell 3, increases the contact area, and thus draws in a large amount of air to form air foam. The air foam is sprayed out from the outlet flange 14 through the outlet pipe 11, and the foam smoothly covers the surface of the burning material to realize the foam fire extinguishing operation.

[0021] In one embodiment, the inlet pipe 2 is vertical, and the outlet pipe 11 is right-angled.

[0022] In this embodiment, it is beneficial to clean the dust on the outer wall of the foam board 8.

[0023] In one embodiment, the inner wall of the acceleration tube 4 is funnel-shaped.

[0024] In this embodiment, by setting a funnel-shaped acceleration tube 4, the foam mixture inside the acceleration tube 4 will undergo a Venturi effect when it flows, thereby accelerating the flow of the foam mixture.

[0025] In one embodiment, the connecting seat 6 is ring-shaped, and two sets of connecting seats 6 are provided. The connecting seat 6 is perpendicular to the guide plate 7.

[0026] In this embodiment, by setting two sets of annular connecting seats 6, the stability of the guide plate 7 is improved.

[0027] In one embodiment, the guide vanes 7 are circumferentially distributed at equal angles about the central axis of the housing 3.

[0028] In this embodiment, it is convenient for air to be fully mixed with the foam mixture through the guide plate 7.

[0029] In one embodiment, the foam board 8 is cylindrical in shape, and the through holes 9 are equidistantly distributed along the outer wall of the foam board 8.

[0030] In this embodiment, the air intake area is increased to improve the mixing efficiency of air and foam mixture.

[0031] In one embodiment, the protective cover 10 is conical in shape, and the rupture groove 13 is cross-shaped.

[0032] In this embodiment, the conical protective cover 10 is provided to provide comprehensive protection for the foamed plate 8, and the cross-shaped crack groove 13 is provided to facilitate the rapid cracking of the sealed glass 12 by the atomized jet through the crack groove 13.

[0033] In this embodiment, the fully mixable foam generator operates as follows: First, when a fire occurs, the foam mixture delivered by the fixed fire pump is injected into the nozzle 5 through the acceleration pipe 4 in the inlet pipe 2, forming a diffused atomized jet. The atomized jet breaks the sealing glass 12 through the rupture groove 13, simultaneously generating negative pressure around it. Air enters the interior of the housing 3 through the through holes 9 on the outer wall of the foaming plate 8, allowing the air to be fully mixed with the foam mixture through the guide plate 7, disrupting the laminar flow inside the housing 3, increasing the contact area, and thus drawing in a large amount of air to form air foam. The air foam is then sprayed out from the outlet flange 14 through the outlet pipe 11, smoothly covering the surface of the burning material to achieve foam fire extinguishing.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A foam generator capable of thorough mixing, characterized in that, The system includes an inlet flange (1), an inlet pipe (2) welded to the top of the inlet flange (1), a housing (3) welded to the top of the inlet pipe (2), an acceleration pipe (4) fixedly connected to the inner wall of the inlet pipe (2), a nozzle (5) fixedly connected to the top of one end of the acceleration pipe (4), a connecting seat (6) fixedly connected to the inner wall of the housing (3), and a guide plate (7) welded to the outer wall of the connecting seat (6). One side of the guide plate (7) is located on the outer wall of the housing (3). A foam board (8) is fixedly connected to the outer wall of the foam board (8), and a through hole (9) is opened on the outer wall of the shell (3). A protective cover (10) is fixedly connected above the foam board (8) on the outer wall of the shell (3). A liquid outlet pipe (11) is welded to the top of the shell (3). A sealing glass (12) is fitted at the connection between the shell (3) and the liquid outlet pipe (11). A rupture groove (13) is opened on the outer wall of the sealing glass (12). A liquid outlet flange (14) is welded to the top of the liquid outlet pipe (11).

2. The foam generator capable of thorough mixing according to claim 1, characterized in that: The inlet pipe (2) is vertical, and the outlet pipe (11) is right-angled.

3. The foam generator capable of thorough mixing according to claim 1, characterized in that: The inner wall of the acceleration tube (4) is funnel-shaped.

4. The foam generator capable of thorough mixing according to claim 1, characterized in that: The connecting seat (6) is ring-shaped, and there are two sets of the connecting seat (6). The connecting seat (6) is perpendicular to the guide plate (7).

5. The foam generator capable of thorough mixing according to claim 1, characterized in that: The guide plate (7) is distributed in a circular shape with equal angles about the central axis of the shell (3).

6. The foam generator capable of thorough mixing according to claim 1, characterized in that: The foam board (8) is cylindrical in shape, and the through holes (9) are distributed at equal intervals along the outer wall of the foam board (8).

7. The foam generator capable of thorough mixing according to claim 1, characterized in that: The protective cover (10) is conical in shape, and the rupture groove (13) is cross-shaped.

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