Portable low-expansion foam generating device

Abstract

The utility model provides a portable low-expansion foam generating device which comprises a device main machine, the device main machine comprises a machine body frame, a lifting handle is arranged on the machine body frame, a medium conveying power device and a battery are installed on the machine body frame, and the medium conveying power device and the battery are respectively connected to a controller through signals. One end of the medium conveying power is detachably provided with a liquid inlet pipe, the other end of the medium conveying power is provided with a liquid outlet pipe, one end of the liquid inlet pipe is provided with a filter head, and one end of the liquid outlet pipe is provided with a foam gun. According to the portable low-expansion foam generating device disclosed by the utility model, one end of the liquid inlet pipe and one end of the liquid outlet pipe are respectively connected with the main machine of the portable foam generating device, and the other end of the liquid inlet pipe is connected with the filter head; and the other end of the liquid outlet pipe is connected with a standard foam gun through a quick connector. The device has the characteristics of convenience in movement, continuous spraying and higher flow accuracy.

Description

Technical Field

[0001] The utility model belongs to the field of foam fire extinguishing, and particularly relates to a portable low-expansion foam generating device. Background Art

[0002] Foam fire extinguishing agent is the most important fire extinguishing agent for extinguishing petrochemical fires, and its foam performance is one of the main factors determining the fire extinguishing efficiency. Existing specifications stipulate the performance requirements that foam fire extinguishing agents should meet and various detection methods, and publish the installation schematic diagram of the low-expansion foam generating system to achieve the specified 0.63 MPa and (11.4 ± 0.4) L / min at the inlet of the standard foam gun, and generate foam under standard conditions to detect the foaming multiple, 25% liquid separation time, fire extinguishing performance, etc.

[0003] In actual production and detection, the vast majority adopt the low-expansion foam generating system shown in the standard. This system uses gas injection to drain liquid and stabilizes the air pressure in the foam tank to make the foam solution in the tank flow out at a constant flow rate, and finally sprays through a standard foam gun to form foam. There are many inconveniences in the use process:

[0004] First, the entire system needs to be equipped with an air compressor additionally, and it is inconvenient to move after connection;

[0005] Second, it cannot spray continuously for a long time. Limited by the volume of the foam tank, after single spraying, due to the gas charging in the foam tank, the gas must be discharged before the foam solution can be refilled again;

[0006] Third, most use pointer pressure gauges, and manually adjust the exhaust valve by manual reading to stabilize the liquid discharge pressure, which has problems of inconvenient operation and low accuracy, resulting in large flow errors for each spraying. Summary of the Invention

[0007] In view of this, the utility model aims to provide a portable low-expansion foam generating device to solve the problem that the existing low-expansion foam generating system is relatively heavy and inconvenient to move.

[0008] To achieve the above object, the technical solution of the utility model is realized as follows:

[0009] A portable low-expansion foam generating device includes a device main body, and the device main body includes a body frame. A handle is arranged on the body frame, and a medium conveying power source and a battery are installed on the body frame. The medium conveying power source and the battery are respectively connected to a controller through signals. One end of the medium conveying power source is detachably installed with a liquid inlet pipe, the other end of the medium conveying power source is installed with a liquid outlet pipe, a filter head is arranged at one end of the liquid inlet pipe, and a foam gun is arranged at one end of the liquid outlet pipe.

[0010] Furthermore, a protective shell is arranged around the body frame, and the medium delivery power, battery, and controller are respectively located inside the protective shell. The handle is installed at the upper end of the protective shell, and a power socket is arranged on the shell. The power socket is signal-connected to the controller.

[0011] Furthermore, the medium delivery power includes a motor and a water pump. The output end of the motor is connected to one end of the water pump. The motor and the water pump are respectively installed on the body frame. The input end of the water pump is installed with a first pipe body, and the output end of the water pump is installed with a second pipe body. A quick-change joint is arranged at one end of each of the first pipe body and the second pipe body. The liquid inlet pipe is connected to the first pipe body through the quick-change joint, and the liquid outlet pipe is connected to the second pipe body through the quick-change joint.

[0012] Furthermore, a pressure sensor is arranged on the second pipe body, and the pressure sensor is signal-connected to the controller.

[0013] Furthermore, the filter head includes a bottom plate. Through holes are provided on the bottom plate. One end of the liquid inlet pipe is detachably connected to the through holes. A filter cover is arranged at one end of the bottom plate. The filter cover is of a barrel-shaped structure, and mesh holes are evenly distributed on the side wall of the filter cover.

[0014] Furthermore, both the liquid inlet pipe and the liquid outlet pipe are PVC hoses.

[0015] Furthermore, the controller includes a single-chip microcomputer. The single-chip microcomputer is installed inside the protective shell. A control panel is arranged on one side of the single-chip microcomputer. The control panel is embedded in the protective shell, and a touch display screen and a power on / off key are installed on the control panel. The touch display screen and the power on / off key are respectively signal-connected to the single-chip microcomputer.

[0016] Compared with the prior art, the portable low-expansion foam generating device of the present invention has the following beneficial effects: One end of the liquid inlet pipe and the liquid outlet pipe are respectively connected to the main body of the portable foam generating device. The other end of the liquid inlet pipe is connected to the filter head, which can be inserted into an open container filled with the pre-prepared foam solution during use. The other end of the liquid outlet pipe is connected to a standard foam gun through a quick-insert joint, and it has the characteristics of being easy to move, continuously spraying, and having a relatively high flow accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0018] Figure 1 is a schematic structural diagram of a portable low-expansion foam generating device according to an embodiment of the present invention;

[0019] Figure 2Schematic diagram of the internal structure of a portable low - multiple foam generating device according to an embodiment of the present utility model, from the first perspective;

[0020] Figure 3 Schematic diagram of the internal structure of a portable low - multiple foam generating device according to an embodiment of the present utility model, from the second perspective;

[0021] Explanation of reference numerals:

[0022] 1. Device main body; 11. Water pump; 12. Power socket; 13. Motor; 14. Battery; 15. Single - chip microcomputer; 16. Handle; 17. Control panel; 18. First pipe body; 19. Second pipe body; 20. Body frame; 21. Pressure sensor; 171. Touch display screen; 172. Power switch button; 2. Liquid inlet pipe; 3. Liquid outlet pipe; 4. Standard foam gun; 5. Filter head. Detailed implementation manners

[0023] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0026] Next, the present utility model will be described in detail with reference to the drawings and in combination with the embodiments.

[0027] As Figures 1 - 3 shown, a portable low-expansion foam generating device includes a device main body 1, and the device main body 1 includes a body frame 20. A handle 16 is provided on the body frame 20. A medium delivery power source and a battery 14 are installed on the body frame 20, and the medium delivery power source and the battery 14 are respectively connected to a controller through signals. One end of the medium delivery power source is detachably installed with a liquid inlet pipe 2, and the other end of the medium delivery power source is installed with a liquid outlet pipe 3. A filter head 5 is provided at one end of the liquid inlet pipe 2, and a foam gun is provided at one end of the liquid outlet pipe 3. One ends of the liquid inlet pipe 2 and the liquid outlet pipe 3 are respectively connected to the portable foam generating device main body 1. The other end of the liquid inlet pipe 2 is connected to the filter head 5, and during use, it can be inserted into an open container containing the pre-prepared foam solution. The other end of the liquid outlet pipe 3 is connected to a standard foam gun 4 through a quick connector, and it has the characteristics of being easy to move, continuously spraying, and having a relatively high flow accuracy.

[0028] A protective housing is arranged around the body frame 20, and the medium delivery power source, the battery 14, and the controller are respectively located inside the protective housing. The handle 16 is installed at the upper end of the protective housing. A power socket 12 is provided on the housing, and the power socket 12 is connected to the controller through a signal. The medium delivery power source includes a motor 13 and a water pump 11, and the output end of the motor 13 is connected to one end of the water pump 11. The motor 13 is a 48V DC motor 13 of the prior art. The motor 13 and the water pump 11 are respectively installed on the body frame 20. The water pump 11 is a sliding vane pump of the prior art, with a rated flow range of 0 - 15 L / min and a rated working pressure of 1.2 MPa. A first pipe body 18 is installed at the input end of the water pump 11, and a second pipe body 19 is installed at the output end of the water pump 11. A quick-change joint is provided at one end of each of the first pipe body 18 and the second pipe body 19. The liquid inlet pipe 2 is connected to the first pipe body 18 through the quick-change joint, and the liquid outlet pipe 3 is connected to the second pipe body 19 through the quick-change joint. The motor 13 is powered by the battery 14, and the battery 14 is charged by connecting to a 220V power source through the power socket 12; A pressure sensor 21 is provided on the second pipe body 19, and the pressure sensor 21 is connected to the controller through a signal. The pressure sensor 21 is of the prior art. The pressure sensor 21 is used to monitor the medium pressure in the second pipeline and transmit it to the controller. The controller adjusts the rotation speed of the motor 13 through the pressure data to meet the requirements of 0.63 MPa and (11.4 ± 0.4) L / min at the inlet of the standard foam gun 44.

[0029] The controller includes a single-chip microcomputer 15, which is installed inside the protective housing. One side of the single-chip microcomputer 15 is provided with a control panel 17. The control panel 17 is embedded in the protective housing, and a touch display screen 171 and a power on / off key are installed on the control panel 17. The touch display screen 171 and the power on / off key are respectively connected to the single-chip microcomputer 15 in a signal manner. The touch display screen 171 is an industrial touch screen of the prior art. The touch display screen 171 can display data such as outlet pressure, the rotation speed of the water pump 11, and the battery power of the battery 14. At the same time, functions such as power on / off, start, and stop are provided through the power on / off key.

[0030] Quick connectors are installed at the outer ends of the first pipe body 18 and the second pipe body 19. The inlet pipe 2 and the outlet pipe 3 are both PVC hoses with a pressure resistance of 1.0 MPa. The PVC hoses can be quickly connected to the quick connectors. The body frame 20 is arranged in an upper and lower two-layer structure. Components such as the motor 13, the battery 14, and the controller are arranged on the upper layer of the frame, and the water pump 11, the first pipe body 18, the second pipe body 19, and the pressure sensor 21 are arranged on the lower layer of the frame to reserve a certain space for placing the inlet pipe 2 and the outlet pipe 3. When the inlet pipe 2 and the outlet pipe 3 have a certain length, the lower layer of the frame is the storage space for the two hoses.

[0031] As Figure 1 shown, the filter head 5 includes a bottom plate. Through holes are provided on the bottom plate. One end of the inlet pipe 2 is detachably connected to the through holes. A filter cover is provided at one end of the bottom plate, and the filter cover is in a barrel shape. Mesh holes are evenly distributed on the side wall of the filter cover. By adopting the filter cover method, impurities such as sediment and small particle foreign matters in the foam solution can be filtered out.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A portable low-multiplicity foam generating device, characterized in that: The device comprises a main body (1), and the main body (1) comprises a body frame (20), a handle (16) is arranged on the body frame (20), a medium conveying power and a battery (14) are installed on the body frame (20), and the medium conveying power and the battery (14) are respectively connected to a controller through signals, a liquid inlet pipe (2) is detachably installed at one end of the medium conveying power, and a liquid outlet pipe (3) is installed at the other end of the medium conveying power, a filter head (5) is arranged at one end of the liquid inlet pipe (2), and a foam gun is arranged at one end of the liquid outlet pipe (3).

2. A portable low-multiplicity foam generating device according to claim 1, characterized in that: A protective shell is arranged on the periphery of the body frame (20), and the medium transmission power, battery (14) and controller are respectively located inside the protective shell, a handle (16) is installed on the upper end of the protective shell, and a power socket (12) is arranged on the shell, and the power socket (12) is connected to the controller by signal.

3. A portable low-multiplicity foam generating device according to claim 1, characterized in that: The medium conveying power comprises a motor (13) and a water pump (11), wherein the output end of the motor (13) is connected to one end of the water pump (11), the motor (13) and the water pump (11) are respectively mounted on a machine frame (20), the input end of the water pump (11) is mounted with a first pipe body (18), the output end of the water pump (11) is mounted with a second pipe body (19), one end of the first pipe body (18) and one end of the second pipe body (19) are respectively provided with a quick-change joint, the liquid inlet pipe (2) is connected to the first pipe body (18) via the quick-change joint, and the liquid outlet pipe (3) is connected to the second pipe body (19) via the quick-change joint.

4. A portable low-multiplicity foam generating device according to claim 3, characterized in that: A pressure sensor (21) is arranged on the second tube body (19), and a signal of the pressure sensor (21) is connected to the controller.

5. A portable low-multiplicity foam generating device according to claim 1, characterized in that: The filter head (5) comprises a bottom plate, a through hole is provided on the bottom plate, one end of the liquid inlet pipe (2) is detachably connected to the through hole, a filter cover is provided at one end of the bottom plate, and the filter cover is a barrel-shaped structure, and mesh holes are evenly distributed on the side wall of the filter cover.

6. A portable low-multiplicity foam generating device according to claim 1, characterized in that: The liquid inlet pipe (2) and the liquid outlet pipe (3) are both PVC hoses.

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