Insulation test device for water-based fire extinguisher

Abstract

The utility model discloses an insulation test device for a water-based fire extinguisher, which comprises a support frame and a conductive loop, an insulation mounting plate is arranged on the support frame, an anode conductive wire, a cathode conductive wire and a voltage detection device are arranged on the insulation mounting plate, and the anode conductive wire, the voltage detection device and the cathode conductive wire are sequentially connected in the conductive loop. The positive conductive wires and the negative conductive wires are arranged at intervals; the water-based fire extinguisher is used for spraying a fire extinguishing agent to the positive conductive wire and the negative conductive wire, and the insulating property of the fire extinguishing agent is detected through the voltage detection device. The water-based fire extinguisher insulation performance testing device can simulate the scene that a water-based fire extinguisher actually extinguishes live substance fire, carries out insulation performance testing in actual application, can obtain accurate insulation performance testing data of the water-based fire extinguisher, is simple in structure and convenient to use, and has popularization and application values.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire-fighting equipment, and in particular relates to an insulation test device for a water-based fire extinguisher. Background Art

[0002] Fires can be divided into five categories: A, B, C, D, and E based on the combustion characteristics of the material:

[0003] Class A fires are fires involving solid materials. These materials are often organic and typically produce glowing embers when burned. Examples include fires involving wood, coal, cotton, wool, linen, and paper.

[0004] Class B fires: These are fires involving liquids and meltable solid materials, such as gasoline, kerosene, diesel, crude oil, methanol, ethanol, asphalt, and paraffin.

[0005] Class C fire: refers to gas fires, such as coal gas, natural gas, methane, ethane, propane, hydrogen, etc.

[0006] Class D fire: refers to metal fires, such as potassium, sodium, magnesium, and aluminum-magnesium alloy fires.

[0007] Class E fire: refers to fires involving charged objects, precision instruments and other substances.

[0008] For Class E fires, in order to prevent the fire from spreading, it is often too late to cut off the power or for other reasons the power cannot be cut off and the fire needs to be extinguished with power on. At this time, non-conductive fire extinguishers such as carbon dioxide fire extinguishers, carbon tetrachloride fire extinguishers, dry powder fire extinguishers and water-based fire extinguishers with insulating functions should be used.

[0009] The extinguishing agent in water-based fire extinguishers is primarily water. At room temperature, water has low viscosity, high thermal stability, high density, and high surface tension. It primarily extinguishes fires through cooling and suffocating effects. The extinguishing agent in water-based fire extinguishers is primarily water. At room temperature, water has low viscosity, high thermal stability, high density, and high surface tension. It primarily extinguishes fires through cooling and suffocating effects. Every kilogram of water heated from room temperature to boiling point and completely evaporates absorbs 2593.4 kJ of heat. Therefore, it utilizes its ability to absorb both sensible and latent heat to exert a cooling and extinguishing effect unmatched by other fire extinguishing agents. Furthermore, the vapor formed by water vaporization is an inert gas and expands approximately 1700 times in volume. During fire extinguishing, the vaporized water occupies space in the combustion area, diluting the oxygen content around the burning material and hindering the entry of fresh air, significantly reducing the oxygen concentration within the combustion zone, thereby achieving the purpose of suffocating the fire. When water is sprayed in a mist, the surface area of the resulting droplets and mist is greatly increased, enhancing the heat exchange between water and fire, thereby strengthening its cooling and suffocating effects. Furthermore, it can dilute certain flammable and combustible liquids that are easily soluble in water. The water mist produced by a strong jet can emulsify flammable and combustible liquids, rapidly cooling the liquid surface and slowing the generation of combustible vapors, thereby extinguishing the fire. Water-based fire extinguishers are widely used due to their ease of use and low cost.

[0010] During the development and production of water-based fire extinguishers, insulation testing is required to ensure their ability to extinguish fires involving charged materials. This ensures their insulation performance. Existing techniques typically test the insulation performance of water-based fire extinguishing agents individually. This method fails to simulate the actual use of water-based fire extinguishers, and therefore does not adequately test the effectiveness of water-based fire extinguishers in actual use. Therefore, a device capable of testing the insulation performance of water-based fire extinguishers is needed. Utility Model Content

[0011] The purpose of the utility model is to provide an insulation test device for a water-based fire extinguisher, so as to solve the above-mentioned problems existing in the prior art.

[0012] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an insulation test device for a water-based fire extinguisher, comprising a support frame and a conductive circuit, an insulating mounting plate being provided on the support frame, a positive conductive wire, a negative conductive wire and a voltage detection device being provided on the insulating mounting plate, the positive conductive wire, the voltage detection device and the negative conductive wire being connected in sequence in the conductive circuit, and the positive conductive wire and the negative conductive wire being arranged at intervals; the water-based fire extinguisher is used to spray a fire extinguishing agent onto the positive conductive wire and the negative conductive wire, and to detect the insulation performance of the fire extinguishing agent through the voltage detection device.

[0013] As an optional implementation of the above technical solution, the conductive circuit includes a positive wire and a negative wire, one end of the positive wire and the negative wire are both connected to the mains, the other end of the positive wire is connected to the positive end of the voltage detection device through a positive conductive wire, and the other end of the negative wire is connected to the negative end of the voltage detection device through a negative conductive wire.

[0014] As an optional implementation of the above technical solution, two positive conductive wires and two negative conductive wires are provided on the insulating mounting plate, the two positive conductive wires are connected in series to the positive wires, and the two negative conductive wires are connected in series to the negative wires.

[0015] As an optional implementation of the above technical solution, the insulating mounting plate is provided with multiple wire holes and multiple steering heads, the wire holes are used for passing the positive wires and the negative wires, and the steering heads are used for steering the positive wires and the negative wires.

[0016] As an optional implementation of the above technical solution, the voltage detection device is a voltage display.

[0017] As an optional implementation of the above technical solution, the voltage detection device is connected to an audible and visual alarm.

[0018] As an optional implementation of the above technical solution, the support frame includes a left frame and a right frame, a telescopic connecting rod is provided between the left frame and the right frame, one end of the insulating mounting plate is connected to the left frame, and the other end of the insulating mounting plate is connected to the right frame.

[0019] As an optional implementation of the above technical solution, the telescopic connecting rod includes a left connecting rod and a right connecting rod that are socketed with each other, a locking piece is provided between the left connecting rod and the right connecting rod, and the ends of the left connecting rod and the right connecting rod that are away from each other are respectively connected to the left frame and the right frame.

[0020] As an optional implementation of the above technical solution, the locking member includes a locking threaded sleeve, the end of the left connecting rod is provided with an external thread that is compatible with the locking threaded sleeve, and the end of the left connecting rod is provided with an open groove, and the right connecting rod is inserted into the inside of the left connecting rod and is locked and fixed by the locking threaded sleeve.

[0021] As an optional implementation of the above technical solution, the left side frame is provided with a left clamping block, the left clamping block is clamped on one side of the insulating mounting plate, and the left clamping block is provided with a left fixing knob; the right side frame is provided with a right clamping block, the right clamping block is clamped on the other side of the insulating mounting plate, and the right clamping block is provided with a right fixing knob.

[0022] As an optional implementation of the above technical solution, rollers are provided at the bottom of the left frame and the right frame.

[0023] The beneficial effects of the utility model are:

[0024] This utility model provides an insulation test device for a water-based fire extinguisher. A positive conductive wire, a voltage detection device, and a negative conductive wire are sequentially connected in a conductive loop. The water-based fire extinguisher sprays a fire extinguishing agent toward the positive and negative conductive wires, and the voltage detection device detects the insulation performance of the fire extinguishing agent. This utility model can simulate the actual scenario of a water-based fire extinguisher extinguishing a charged material fire, conduct practical insulation performance testing, and obtain accurate insulation performance test data for the water-based fire extinguisher. Its simple structure and ease of use make it highly valuable for widespread application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of an insulation test device in one embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of the back structure of the insulating mounting plate in one embodiment of the present utility model.

[0027] In the figure: 1-insulating mounting plate; 2-positive conductive wire; 3-negative conductive wire; 4-voltage detection device; 5-positive wire; 6-negative wire; 7-threading hole; 8-steering head; 9-sound and light alarm; 10-left frame; 11-right frame; 12-telescopic connecting rod; 13-left clamping block; 14-left fixing knob; 15-right clamping block; 16-right fixing knob; 17-roller. DETAILED DESCRIPTION

[0028] like Figure 1 and Figure 2 As shown, this embodiment provides an insulation test device for a water-based fire extinguisher, comprising a support frame and a conductive circuit. The conductive circuit is connected to the mains to simulate an actual power usage environment. The support frame is provided with an insulating mounting plate 1, on which are mounted a positive conductive wire 2, a negative conductive wire 3, and a voltage detection device 4. The voltage detection device 4 is a voltage display for detecting voltage values. The positive conductive wire 2, the voltage detection device 4, and the negative conductive wire 3 are sequentially connected in the conductive circuit, with the positive conductive wire 2 and the negative conductive wire 3 spaced apart. The water-based fire extinguisher is used to spray a fire extinguishing agent onto the positive conductive wire 2 and the negative conductive wire 3, and to detect the insulation performance of the fire extinguishing agent using the voltage detection device 4. The positive conductive wire 2 and the negative conductive wire 3 are relatively close to each other, so that the fire extinguishing agent can be sprayed onto the positive conductive wire 2 and the negative conductive wire 3.

[0029] After the conductive circuit is connected to the mains, the water-based fire extinguisher sprays extinguishing agent onto the positive and negative conductive wires 2 and 3. If the extinguishing agent has poor insulation properties, the positive and negative conductive wires 2 and 3 will directly conduct, resulting in a short circuit and a change in the voltage value of the voltage detection device 4. If the extinguishing agent has good insulation properties, the positive and negative conductive wires 2 and 3 will not directly conduct, and the voltage value of the voltage detection device 4 will remain essentially unchanged.

[0030] The utility model can simulate the scene of a water-based fire extinguisher actually extinguishing a fire of charged materials, conduct insulation performance tests in actual applications, and obtain accurate insulation performance test data of the water-based fire extinguisher. It has a simple structure, is easy to use, and has promotion and application value.

[0031] like Figure 2 As shown, specifically, the conductive circuit includes a positive wire 5 and a negative wire 6. One end of each of the positive wire 5 and the negative wire 6 is connected to the mains electricity. The other end of the positive wire 5 is connected to the positive terminal of the voltage detection device 4 via the positive conductive wire 2. The other end of the negative wire 6 is connected to the negative terminal of the voltage detection device 4 via the negative conductive wire 3. The water-based fire extinguisher sprays the fire extinguishing agent onto the positive conductive wire 2 and the negative conductive wire 3. The voltage detection device 4 detects the voltage change, thereby obtaining the insulation performance of the fire extinguishing agent of the water-based fire extinguisher.

[0032] like Figure 1 As shown, in a specific embodiment, the insulating mounting plate 1 is provided with two positive conductive wires 2 and two negative conductive wires 3, the two positive conductive wires 2 are connected in series to the positive wire 5, and the two negative conductive wires 3 are connected in series to the negative wire 6. One positive conductive wire 2 and one negative conductive wire 3 are grouped together to facilitate testing the insulation performance of the water-based fire extinguisher. Preferably, the insulating mounting plate 1 is provided with a plurality of threading holes 7 and a plurality of steering heads 8, the threading holes 7 are used for threading the positive wires 5 and the negative wires 6, and the positive wires 5 and the negative wires 6 are distributed on the front and back of the insulating mounting plate 1. The steering head 8 is used to steer the positive wires 5 and the negative wires 6 so that the two positive conductive wires 2 and the two negative conductive wires 3 are arranged in parallel.

[0033] The voltage detection device 4 is connected to an audible and visual alarm 9 , and when the voltage value of the voltage detection device 4 changes, the audible and visual alarm 9 sounds an alarm.

[0034] like Figure 1As shown, in a specific embodiment, the support frame includes a left side frame 10 and a right side frame 11, and a telescopic connecting rod 12 is provided between the left side frame 10 and the right side frame 11. One end of the insulating mounting plate 1 is connected to the left side frame 10, and the other end of the insulating mounting plate 1 is connected to the right side frame 11. The distance between the left side frame 10 and the right side frame 11 can be adjusted to facilitate matching with insulating mounting plates 1 of different sizes. The telescopic connecting rod 12 includes a left connecting rod and a right connecting rod that are mutually sleeved, and a locking member is provided between the left connecting rod and the right connecting rod. The ends of the left connecting rod and the right connecting rod that are away from each other are respectively connected to the left side frame 10 and the right side frame 11. The locking member includes a locking threaded sleeve, and the end of the left connecting rod is provided with an external thread that is compatible with the locking threaded sleeve, and the end of the left connecting rod is provided with an open groove. The right connecting rod is inserted into the interior of the left connecting rod and is locked and fixed by the locking threaded sleeve.

[0035] Specifically, the left side frame 10 is provided with a left clamping block 13, which clamps to one side of the insulating mounting plate 1 and is provided with a left fixing knob 14. The right side frame 11 is provided with a right clamping block 15, which clamps to the other side of the insulating mounting plate 1 and is provided with a right fixing knob 16 to secure the insulating mounting plate 1. To facilitate movement of the insulation test apparatus, such as to a laboratory, rollers 17 are provided at the bottom of both the left and right frames 10 and 11.

[0036] The utility model provides an insulation test device for a water-based fire extinguisher used to extinguish a fire of a charged substance. The device can test the insulation performance of the water-based fire extinguisher in extinguishing a fire of a charged substance.

[0037] In the description of the present utility model, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, and can be fixedly connected, detachably connected, or integrated; can be mechanically connected or electrically connected; can be directly connected or indirectly connected through an intermediate medium, can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood. In addition, the specific features, structures, etc. described in the embodiment are included in at least one embodiment. Under the condition that there is no contradiction, those skilled in the art can combine the features of different embodiments. The scope of protection of the present utility model is not limited to the above-mentioned specific embodiments. According to the basic technical concept of the present utility model, the embodiments that can be associated with by ordinary technicians in this field without creative work all fall within the scope of protection of the present utility model.

Claims

1. An insulation test device for a water-based fire extinguisher, characterized in that: The invention comprises a support frame and a conductive circuit, wherein an insulating mounting plate (1) is provided on the support frame, and a positive conductive wire (2), a negative conductive wire (3) and a voltage detection device (4) are provided on the insulating mounting plate (1), wherein the positive conductive wire (2), the voltage detection device (4) and the negative conductive wire (3) are sequentially connected in the conductive circuit, and the positive conductive wire (2) and the negative conductive wire (3) are arranged at intervals; and a water-based fire extinguisher is used for spraying a fire extinguishing agent onto the positive conductive wire (2) and the negative conductive wire (3), and detecting the insulation performance of the fire extinguishing agent through the voltage detection device (4).

2. The insulation test device for water-based fire extinguishers according to claim 1, characterized in that: The conductive circuit comprises a positive wire (5) and a negative wire (6), one end of each of the positive wire (5) and the negative wire (6) is connected to the mains, the other end of the positive wire (5) is connected to the positive end of the voltage detection device (4) via the positive conductive wire (2), and the other end of the negative wire (6) is connected to the negative end of the voltage detection device (4) via the negative conductive wire (3).

3. The insulation test device for water-based fire extinguishers according to claim 2, characterized in that: Two positive conductive wires (2) and two negative conductive wires (3) are provided on the insulating mounting plate (1); the two positive conductive wires (2) are connected in series to the positive wire (5); and the two negative conductive wires (3) are connected in series to the negative wire (6).

4. The insulation test device for water-based fire extinguishers according to claim 3, characterized in that: The insulating mounting plate (1) is provided with a plurality of threading holes (7) and a plurality of steering heads (8), the threading holes (7) being used for passing the positive wires (5) and the negative wires (6), and the steering heads (8) being used for steering the positive wires (5) and the negative wires (6).

5. The insulation test device for water-based fire extinguisher according to claim 1, characterized in that: The voltage detection device (4) is connected to an audible and visual alarm (9).

6. The insulation test device for water-based fire extinguisher according to claim 1, characterized in that: The support frame comprises a left side frame (10) and a right side frame (11), a telescopic connecting rod (12) is provided between the left side frame (10) and the right side frame (11), one end of the insulating mounting plate (1) is connected to the left side frame (10), and the other end of the insulating mounting plate (1) is connected to the right side frame (11).

7. The insulation test device for a water-based fire extinguisher according to claim 6, characterized in that: The telescopic connecting rod (12) comprises a left connecting rod and a right connecting rod which are sleeved with each other, a locking piece is provided between the left connecting rod and the right connecting rod, and the ends of the left connecting rod and the right connecting rod which are away from each other are respectively connected to the left side frame (10) and the right side frame (11).

8. The insulation test device for a water-based fire extinguisher according to claim 7, characterized in that: The locking piece includes a locking threaded sleeve, the end of the left connecting rod is provided with an external thread adapted to the locking threaded sleeve, and the end of the left connecting rod is provided with an open groove, and the right connecting rod is inserted into the inside of the left connecting rod and is locked and fixed by the locking threaded sleeve.

9. The insulation test device for a water-based fire extinguisher according to claim 6, characterized in that: The left side frame (10) is provided with a left clamping block (13), the left clamping block (13) is clamped on one side of the insulating mounting plate (1), and the left clamping block (13) is provided with a left fixing knob (14); the right side frame (11) is provided with a right clamping block (15), the right clamping block (15) is clamped on the other side of the insulating mounting plate (1), and the right clamping block (15) is provided with a right fixing knob (16).

10. The insulation test device for a water-based fire extinguisher according to claim 6, characterized in that: The bottoms of the left side frame (10) and the right side frame (11) are both provided with rollers (17).

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