Lightning protection type dry powder fire extinguishing device special for wind power cabin

Abstract

The utility model relates to a dry powder fire extinguishing device, aiming at solving the technical problems that the existing dry powder fire extinguishing device cannot adapt to a lightning environment and is easy to start by mistake when being used in a wind power cabin. The utility model provides a lightning protection type dry powder fire extinguishing device special for a wind power cabin, which comprises a tank body provided with a starting lead for starting the dry powder fire extinguishing device. A mounting bracket is arranged at the top of the tank body; a junction box is arranged at the bottom of the inner side of the mounting bracket; a lightning protection module is arranged in the junction box, is connected in series between the control end of the dry powder fire extinguishing device and the starting lead and is used for isolating interference current such as lightning, induced electricity and instantaneous electricity.

Description

Technical Field

[0001] The utility model relates to a dry powder fire extinguishing device, in particular to a dry powder fire extinguishing device special for a lightning protection type wind turbine cabin. Background Art

[0002] With the continuous growth of energy demand and the improvement of environmental protection awareness, wind energy, as a clean and renewable energy form, has been more and more widely used and developed. However, wind power generation is not controlled by humans, because wind turbines are located far away from human habitation for a long time and are greatly affected by natural disasters. Once they are affected by lightning, strong winds, and heavy rain, they are very likely to cause internal short circuits, thereby causing fires. Therefore, it has become a fact unanimously recognized in the industry to equip wind turbine cabins with dry powder fire extinguishing devices.

[0003] However, the existing dry powder fire extinguishing device cannot adapt to the lightning environment when used in the wind turbine cabin, and is prone to false start-up, resulting in the occurrence of wind turbine shutdown accidents. Utility Model Content

[0004] The utility model aims to solve the technical problem that the existing dry powder fire extinguishing device cannot adapt to the lightning environment and is prone to misstarting when used in a wind turbine cabin, and provides a lightning protection type wind turbine cabin special dry powder fire extinguishing device.

[0005] In order to solve the above technical problems, the technical solutions provided by the utility model are as follows:

[0006] A dry powder fire extinguishing device for a lightning protection wind turbine cabin, comprising a tank body, on which a starting lead for starting the dry powder fire extinguishing device is provided;

[0007] A mounting bracket is provided on the top of the tank body, and a junction box is provided on the inner bottom of the mounting bracket;

[0008] A lightning protection module is arranged inside the junction box, and the lightning protection module is connected in series between the control end and the starting lead of the dry powder fire extinguishing device to isolate interference currents such as lightning, induced electricity, and instantaneous electricity.

[0009] Further, the junction box includes a housing, and a control cable, a thermistor wire connector and a grounding stud arranged on the housing;

[0010] The bottom of the shell is connected to the inner bottom of the mounting bracket, and the lightning protection module is located inside the shell;

[0011] The input terminal of the lightning protection module is connected to the control cable, and the control cable is connected to the control end; the output terminal of the lightning protection module is connected to the starting lead; and the input grounding terminal of the lightning protection module is connected to the grounding stud.

[0012] Furthermore, the lightning protection module includes a shell, on which are provided an input positive terminal and an input negative terminal connected to the control cable, an output positive terminal and an output negative terminal connected to the start lead, and an input grounding terminal connected to the grounding stud.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model provides a lightning protection type wind turbine cabin special dry powder fire extinguishing device, which is provided with a junction box and a lightning protection module, and the lightning protection module is connected in series between the control end and the starting lead of the dry powder fire extinguishing device through the junction box, so that the dry powder fire extinguishing device can effectively isolate interference currents such as lightning, induced electricity, and transient electricity, and avoid the dry powder fire extinguishing device from being falsely started due to interference from lightning, induced electricity or transient electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of a lightning protection module of the utility model;

[0017] Figure 3 It is a schematic diagram of a junction box of the utility model;

[0018] Explanation of the reference numerals: 1- bracket, 2- lightning protection module, 21- shell, 22- output terminal + pole terminal, 23- output terminal - pole terminal, 24- input terminal grounding terminal, 25- input terminal + pole terminal, 26- input terminal - pole terminal, 3- junction box, 31- shell, 32- control cable, 33- thermistor wire connector, 34- grounding stud, 4- dry powder fire extinguishing device. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 As shown, a lightning-proof dry powder fire extinguishing device dedicated to a wind turbine cabin includes a tank body 4, on which a starting lead for starting the dry powder fire extinguishing device is provided; a mounting bracket 1 is provided on the top of the tank body 4, and a junction box 3 is provided on the inner bottom of the mounting bracket 1; a lightning protection module 2 is provided inside the junction box 3, and the lightning protection module 2 is connected in series between the control end and the starting lead of the dry powder fire extinguishing device to isolate interference currents such as lightning, induced electricity, and instantaneous electricity.

[0021] like Figure 3As shown, the junction box 3 includes a shell 31, and a control cable 32, a thermal line connector 33 and a grounding stud 34 arranged on the shell 31; the bottom of the shell 31 is connected to the bottom of the inner side of the mounting bracket 1, and the lightning protection module 2 is located in the shell 31; Figure 2 As shown, the lightning protection module 2 includes a housing 21 , on which are provided an input positive terminal 25 , an input negative terminal 26 , an output positive terminal 22 , an output negative terminal 23 , and an input grounding terminal 24 .

[0022] The input grounding terminal 24 is connected to the grounding stud 34, the input positive terminal 25 and the input negative terminal 26 are connected to the control cable 32, the control cable is connected to the control end, and the output positive terminal 22 and the output negative terminal 23 are connected to the starting lead; the lightning protection module 2 is connected in series between the control end and the starting lead of the dry powder fire extinguishing device, so that the fire extinguishing device can effectively isolate interference currents such as lightning, induced electricity, and instantaneous electricity, and prevent the fire extinguishing device from starting by mistake.

[0023] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or replacements within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A dry powder fire extinguishing device for a lightning protection wind turbine cabin, comprising a tank body (4), on which a starting lead for starting the dry powder fire extinguishing device is provided; characterized in that: A mounting bracket (1) is provided on the top of the tank body (4), and a junction box (3) is provided on the inner bottom of the mounting bracket (1); A lightning protection module (2) is provided inside the junction box (3), and the lightning protection module (2) is connected in series between the control end and the start lead of the dry powder fire extinguishing device, and is used to isolate lightning, induced electricity, and instantaneous electrical interference current.

2. The dry powder fire extinguishing device for a lightning protection wind turbine cabin according to claim 1 is characterized in that: The junction box (3) comprises a housing (31), and a control cable (32), a thermal line connector (33) and a grounding stud (34) arranged on the housing (31); The bottom of the housing (31) is connected to the inner bottom of the mounting bracket (1), and the lightning protection module (2) is located inside the housing (31); The input terminal of the lightning protection module (2) is connected to a control cable (32), and the control cable (32) is connected to a control end; the output terminal of the lightning protection module (2) is connected to a start lead; and the input grounding terminal of the lightning protection module (2) is connected to a grounding stud (34).

3. The dry powder fire extinguishing device for a lightning protection wind turbine cabin according to claim 2 is characterized in that: The lightning protection module (2) comprises a housing (21), on which an input positive terminal (25) and an input negative terminal (26) connected to a control cable (32), an output positive terminal (22) and an output negative terminal (23) connected to a start lead, and an input grounding terminal (24) connected to a grounding stud (34) are provided.

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