External feedback device suitable for dry powder extinguishing equipment

Abstract

The utility model discloses an external feedback device suitable for dry powder fire extinguishing equipment, a feedback device body comprises a feedback joint, a feedback line, a straight-through, an aluminum tube, a glass fiber tube, a thermosensitive line, a cartridge bag and a temperature fuse, the thermosensitive line is respectively connected with the cartridge bag and the temperature fuse, and the temperature fuse is respectively connected with the feedback line and the feedback joint in a matching way. The feedback connector, the feedback line, the thermosensitive line, the medicine bag and the temperature fuse are respectively connected with the glass fiber tube in a matched mode, and the thermosensitive line is connected with the straight-through tube in a matched mode through the aluminum tube. The device is simple in structure, convenient to install, simple and understandable to operate, unique in starting mode and safe and reliable to use.

Description

Technical Field

[0001] The utility model relates to the technical field of dry powder fire extinguishing equipment, and more particularly to an external feedback device suitable for dry powder fire extinguishing equipment. Background Art

[0002] The dry powder inside an ultra-fine dry powder fire extinguisher is made of a fine solid powder of highly effective fire-extinguishing inorganic salts and a small amount of additives, which are dried, crushed, and mixed. It also has significant fire-extinguishing properties, including suppressing flaming combustion, providing a strong suffocating effect on surface combustion, and shielding and cooling thermal radiation.

[0003] The feedback of ultra-fine dry powder fire extinguishers is mostly built-in. The present invention is an external feedback device with low installation difficulty, convenient maintenance, and low subsequent maintenance costs. In addition, the external feedback line is different from the built-in type and will not sinter, and has stable feedback performance. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention provides an external feedback device suitable for dry powder fire extinguishing equipment to solve the technical problems mentioned in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an external feedback device suitable for dry powder fire extinguishing equipment, comprising a feedback device body, wherein the feedback device body comprises a feedback connector, a feedback line, a straight-through, an aluminum tube, a glass fiber tube, a thermistor, a medicine bag and a temperature fuse, the thermistor being connected to the medicine bag and the temperature fuse respectively, the temperature fuse being connected to the feedback line and the feedback connector respectively, the feedback connector, the feedback line, the thermistor, the medicine bag and the temperature fuse being connected to the glass fiber tube respectively, and the thermistor being connected to the straight-through through the aluminum tube.

[0006] The present invention is further configured such that a heat shrink tube is sleeved on the exterior of the feedback device body.

[0007] The utility model is further configured such that the temperature fuse is externally connected to two white feedback wires and a feedback connector.

[0008] The utility model is further configured such that both ends of the thermal line are pressed with aluminum tubes and inserted straight through.

[0009] The utility model is further configured such that the middle stripping of the thermal wire and the medicine bag and the temperature fuse are fixed together.

[0010] Compared with the existing technology, the present invention provides an external feedback device suitable for dry powder fire extinguishing equipment, which has the following beneficial effects:

[0011] 1. This device has a simple structure, is easy to install, energy-saving and environmentally friendly, and is safe and reliable to use;

[0012] 2. This device heats the entire small space;

[0013] 3. The materials used in this device are all flame retardant;

[0014] 4. This device outputs temperature signals to the controller through the temperature sensing element, and the controller outputs signals to the heating element to achieve automatic heating, so that the gas fire extinguishing equipment can be widely used in wind power generation, mobile power supply, ships and other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic cross-sectional view of an external feedback device suitable for dry powder fire extinguishing equipment in the present invention;

[0016] In the figure: 1. Feedback connector; 2. Feedback line; 3. Straight-through; 4. Aluminum tube; 5. Fiberglass tube; 6. Thermistor wire; 7. Medicine bag; 8. Temperature fuse; 9. Heat shrink tubing. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0019] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0020] See also Figure 1 An external feedback device suitable for dry powder fire extinguishing equipment includes a feedback device body, which includes a feedback connector 1, a feedback line 2, a straight-through 3, an aluminum tube 4, a glass fiber tube 5, a thermal wire 6, a medicine bag 7 and a temperature fuse 8. The thermal wire 6 is connected to the medicine bag 7 and the temperature fuse 8 respectively, and the temperature fuse 8 is respectively connected to the feedback line 2 and the feedback connector 1. The feedback connector 1, the feedback line 2, the thermal wire 6, the medicine bag 7 and the temperature fuse 8 are respectively connected to the glass fiber tube 5, and the thermal wire 6 is connected to the straight-through 3 through the aluminum tube 4.

[0021] In a further embodiment of the present invention, the outside of the feedback device body is provided with a heat shrink tube 9; the temperature fuse 8 is externally connected to two white feedback wires 2 and a feedback connector 1; the two ends of the thermistor wire 6 are pressed with aluminum tubes 4 and inserted into the straight-through 3; the middle of the thermistor wire 6 is peeled and fixed together with the medicine bag 7 and the temperature fuse 8.

[0022] The purpose of the utility model is to solve the problem of built-in normally closed and dynamically open feedback in dry powder fire extinguishers, because the high temperature when the driver is started will cause the feedback line 2 to sinter, and the disconnection signal cannot be fed back.

[0023] The practical technical solution is achieved by replacing the built-in normally closed dynamic open feedback of the dry powder fire extinguisher with an external normally closed dynamic open feedback to avoid abnormal feedback caused by high temperature sintering of the feedback line 2 inside.

[0024] When the fire extinguisher is working, the thermistor line 6 is connected to the thermistor line 6 of the external feedback device through the direct connection 3, and the powder bag 7 therein is ignited to release heat, causing the temperature fuse 8 to be heated and actuated, and the feedback signal after the actuation is transmitted to the fire extinguishing system, and a feedback signal indicating that the fire extinguisher has been actuated is received.

[0025] When the fire extinguisher is working, its thermistor line 6 is connected to the thermistor line 6 of the external feedback device through the direct connection 3, and the explosive pack 7 therein is ignited. After the explosive pack 7 is ignited, it releases heat, causing the thermal fuse 8 on it to be heated and actuated. The feedback signal after the actuation is transmitted to the feedback connector 1 via the feedback line 2, so that the fire extinguishing system connected to the feedback connector 1 can receive the feedback signal that the fire extinguisher has been actuated.

[0026] By using this external feedback device, the problem of built-in feedback being sintered by the wire due to high temperature can be effectively solved. By controlling the amount of the medicine bag, the possibility of sintering of the feedback wire 2 connected to the temperature fuse 8 can be greatly reduced, thereby achieving the effect of successfully feeding back the action signal.

[0027] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An external feedback device suitable for dry powder fire extinguishing equipment, comprising a feedback device body, characterized in that: The feedback device body includes a feedback connector, a feedback line, a straight-through, an aluminum tube, a glass fiber tube, a thermistor, a medicine bag and a temperature fuse. The thermistor is connected to the medicine bag and the temperature fuse respectively. The temperature fuse is respectively connected to the feedback line and the feedback connector. The feedback connector, feedback line, thermistor, the medicine bag and the temperature fuse are respectively connected to the glass fiber tube. The thermistor is connected to the straight-through through the aluminum tube.

2. The external feedback device for dry powder fire extinguishing equipment according to claim 1, characterized in that: The outside of the feedback device body is covered with a heat shrink tube.

3. The external feedback device for dry powder fire extinguishing equipment according to claim 2, characterized in that: The temperature fuse is externally connected to two white feedback wires and a feedback connector.

4. The external feedback device for dry powder fire extinguishing equipment according to claim 1, characterized in that: The middle stripping of the thermal wire is fixed together with the medicine bag and the temperature fuse.

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