WO2023202716A1 - 一种防止电缆竖井积粉自燃的控制装置 - Google Patents

一种防止电缆竖井积粉自燃的控制装置 Download PDF

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Publication number
WO2023202716A1
WO2023202716A1 PCT/CN2023/089952 CN2023089952W WO2023202716A1 WO 2023202716 A1 WO2023202716 A1 WO 2023202716A1 CN 2023089952 W CN2023089952 W CN 2023089952W WO 2023202716 A1 WO2023202716 A1 WO 2023202716A1
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Prior art keywords
shaft body
cable
cable shaft
spontaneous combustion
compressed air
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PCT/CN2023/089952
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English (en)
French (fr)
Inventor
李雷
林松青
李耀亮
刘鹏峰
黄学辉
张智远
詹新民
李可欣
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华能罗源发电有限责任公司
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Publication of WO2023202716A1 publication Critical patent/WO2023202716A1/zh

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources

Definitions

  • the utility model relates to a control device for preventing spontaneous combustion of powder accumulated in a cable shaft, and belongs to the technical field of electrical shafts.
  • the existing cables are arranged vertically in the shaft. Once a fire occurs, a chimney effect will be produced, causing the fire to spread more quickly. Due to the need for coal transportation in the power plant, coal dust will be generated, and because the shaft is a relatively closed structure, the dust Powder accumulation will occur when entering the shaft. The shafts in power plants often cause spontaneous combustion due to powder accumulation. The closed structure of the shaft also prevents the staff from detecting the internal conditions of the shaft. There is no control and monitoring means, and it is impossible to understand the changes in the cable shaft in a timely manner and take measures. Corresponding measures are therefore urgently needed for improvement.
  • the utility model designs a control device that prevents spontaneous combustion of powder accumulation in cable shafts, which improves monitoring capabilities, improves equipment reliability, and enables workers to promptly discover temperature abnormalities in the shafts. .
  • a control device for preventing spontaneous combustion of powder accumulated in cable shafts including a gas pipe group connected to the cable shaft body, the free end of the gas pipe group is connected to a compressed air source, and an electric pressure regulating valve is also provided on the gas pipe group; it also includes a gas pipe group A pressure switch in the cable shaft body is electrically connected to the electric pressure regulating valve.
  • the audible and visual alarm device includes a temperature switch, a buzzer and a warning light.
  • the temperature switch is arranged inside the cable shaft body, and the buzzer and warning light are both electrically connected to the temperature switch.
  • the gas pipeline group includes a compressed air pipe, an air supply pipe and several branch pipes.
  • One end of the compressed air pipe is connected to the compressed air source, and the other end is vertically connected to the middle part of the air supply pipe.
  • the air supply pipe is set parallel to the cable shaft body, and each branch pipe One end is connected to the cable shaft body, and the other end is set vertically to the air supply pipe.
  • the distance between any two adjacent branch pipes is two meters.
  • this utility model has the following characteristics and beneficial effects:
  • This utility model realizes the pressure monitoring and real-time adjustment of the pressure in the cable shaft body by setting up a pressure switch, a gas pipe set and an electric pressure regulating valve to ensure a slight positive pressure inside the cable shaft body and prevent dust from entering the cable shaft body. Causes powder accumulation and then causes spontaneous combustion to damage the equipment, thereby improving equipment reliability.
  • This utility model adds a temperature monitoring and alarm function by setting up an audible and visual alarm device to detect fire problems in a timely manner, thereby preventing the expansion of fire accidents and causing heavy losses, and is highly safe.
  • Figure 1 is a schematic diagram of the connection structure of the present utility model.
  • the reference numbers are: 1. Cable shaft body; 2. Sound and light alarm device; 3. Pressure switch; 4. Branch pipe; 5. Air supply pipe; 6. Electric pressure regulating valve; 7. Compressed air pipe; 8. Compression air source.
  • the control device for preventing spontaneous combustion of powder accumulation in cable shafts in this embodiment includes a gas pipe group connected to the cable shaft body 1.
  • the free end of the gas pipe group is connected to the compressed air source 8, and there are also gas pipe groups on it.
  • An electric pressure regulating valve 6 is provided; it also includes a pressure switch 3 arranged in the cable shaft body 1, and the pressure switch 3 is electrically connected to the electric pressure regulating valve 6.
  • the sound and light alarm device 2 includes a temperature switch, a buzzer and a warning light.
  • the temperature switch is arranged inside the cable shaft body 1, and the buzzer and warning light are both electrically connected to the temperature switch.
  • the air pipe group includes a compressed air pipe 7, an air supply pipe 5 and several branch pipes 4.
  • One end of the compressed air pipe 7 is connected to the compressed air source 8, and the other end is vertically connected to the middle part of the air supply pipe 5.
  • the air supply pipe 5 is parallel to the cable.
  • the shaft body 1 is arranged, one end of each branch pipe 4 is connected with the cable shaft body 1, and the other end is arranged vertically to the air supply pipe 5.
  • the distance between any two adjacent branch pipes 4 is two meters.
  • the pressure switch 3 is used to monitor the pressure inside the cable shaft body 1 in real time, and the pressure switch 3 is electrically connected to the electric pressure regulating valve 6, and the electrical signal of the pressure switch 3 can be transmitted to the electric pressure regulating valve 6.
  • the electric pressure regulating valve 6 Through the adjustment function of the electric pressure regulating valve 6, a slight positive pressure is achieved inside the cable shaft body 1 to prevent dust from entering; through the setting of the sound and light alarm device 2, the temperature inside the cable shaft body 1 is monitored. When the temperature is abnormal, it can Triggering the buzzer and warning light connected to the temperature switch can alert staff to promptly detect abnormalities and handle them, greatly improving safety.
  • connection should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral connection; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components.
  • connection should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral connection; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

一种防止电缆竖井积粉自燃的控制装置，包括与电缆竖井本体（1）连通的输气管组，输气管组自由端与压缩空气源连接，且输气管组上还设置有电动压力调节阀（6）；还包括设置在电缆竖井本体（1）内的压力开关（3），压力开关（3）与电动压力调节阀（6）电连接。该控制装置提高了监控能力，提高了设备可靠性，能够使工作人员及时发现竖井内的温度异常。

Description

一种防止电缆竖井积粉自燃的控制装置 技术领域
本实用新型涉及一种防止电缆竖井积粉自燃的控制装置，属于电气竖井技术领域。
 背景技术
随着发电厂机组容量的增大，自动化水平的提高，电缆使用量也随之增大，电缆的火灾防控需求也日益加大，要求也日益严格。电缆竖井中的电缆密布，电缆之间没有有效隔离，火灾影响范围大，一旦电缆大面积损坏，则会因无法输煤而造成机组停运事故，给电厂带来较大损失。
现有的电缆在竖井内是垂直布置，一旦火灾发生，会产生烟囱效应，使得火势蔓延更为迅速，电厂内由于输煤需要，会产生煤粉扬尘，且由于竖井为较为封闭的结构，粉尘进入竖井内会产生积粉，电厂内的竖井常因积粉导致自燃，封闭结构的竖井也让工作人员无法检测竖井内部情况，也无控制、监控手段，无法及时了解电缆竖井内的变化进而采取相应措施，因此急需进行改进。
 实用新型
为了克服上述现有技术中的缺点，本实用新型设计了一种防止电缆竖井积粉自燃的控制装置，其提高了监控能力，提高了设备可靠性，能够使工作人员及时发现竖井内的温度异常。
为了实现上述目的，本实用新型采用如下技术方案：
一种防止电缆竖井积粉自燃的控制装置，包括与电缆竖井本体连通的输气管组，输气管组自由端与压缩空气源连接，且输气管组上还设置有电动压力调节阀；还包括设置在电缆竖井本体内的压力开关，压力开关与电动压力调节阀电连接。
进一步地，还包括声光报警装置，声光报警装置包括温度开关、蜂鸣器和警示灯，温度开关设置在电缆竖井本体内部，蜂鸣器和警示灯均与温度开关电连接。
进一步地，输气管组包括压缩空气管、送气管和若干根分支管，压缩空气管一端与压缩空气源连接，另一端与送气管中部垂直连接，送气管平行于电缆竖井本体设置，各分支管一端与电缆竖井本体连通，另一端均垂直送气管设置。
进一步地，任意相邻两根分支管之间的间距为两米。
与现有技术相比本实用新型有以下特点和有益效果：
1、本实用新型通过设置压力开关、输气管组以及电动压力调节阀，实现对电缆竖井本体内的压力监测并实时调节压力，保证电缆竖井本体内部的微正压，杜绝粉尘进入电缆竖井本体内造成积粉进而造成自燃损坏设备，从而提高了设备可靠性。
2、本实用新型通过设置声光报警装置，增加温度监测报警功能，及时发现火灾问题，进而防止火灾事故扩大造成重大损失，且安全性高。
 附图说明
图1是本实用新型的连接结构示意图。
其中附图标记为：1、电缆竖井本体；2、声光报警装置；3、压力开关；4、分支管；5、送气管；6、电动压力调节阀；7、压缩空气管；8、压缩空气源。
 实施方式
下面结合实施例对本实用新型进行更详细的描述。
如图1所示，本实施例的防止电缆竖井积粉自燃的控制装置，包括与电缆竖井本体1连通的输气管组，输气管组自由端与压缩空气源8连接，且输气管组上还设置有电动压力调节阀6；还包括设置在电缆竖井本体1内的压力开关3，压力开关3与电动压力调节阀6电连接。
进一步地，还包括声光报警装置2，声光报警装置2包括温度开关、蜂鸣器和警示灯，温度开关设置在电缆竖井本体1内部，蜂鸣器和警示灯均与温度开关电连接。
进一步地，输气管组包括压缩空气管7、送气管5和若干根分支管4，压缩空气管7一端与压缩空气源8连接，另一端与送气管5中部垂直连接，送气管5平行于电缆竖井本体1设置，各分支管4一端与电缆竖井本体1连通，另一端均垂直送气管5设置。
进一步地，任意相邻两根分支管4之间的间距为两米。
本实用新型的工作原理：利用压力开关3实时监测电缆竖井本体1内部的压力，并且压力开关3与电动压力调节阀6电连接，可以将压力开关3的电信号传输给电动压力调节阀6，通过电动压力调节阀6的调节作用，实现电缆竖井本体1内部微正压，杜绝粉尘进入；通过声光报警装置2的设置，对电缆竖井本体1内的温度进行监测，当温度异常时，可以触发与温度开关连接的蜂鸣器和警示灯，便于警示工作人员及时发现异常并进行处理，大大提高安全性。
在本实用新型的描述中，需要说明的是，术语“内”、“外”、“上”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。
在本实用新型的描述中，需要说明的是，除非另有明确的规定和限定，术语“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本实用新型中的具体含义。
显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。

Claims (4)

  1. 一种防止电缆竖井积粉自燃的控制装置，其特征在于：包括与电缆竖井本体（1）连通的输气管组，输气管组自由端与压缩空气源（8）连接，且输气管组上还设置有电动压力调节阀（6）；还包括设置在电缆竖井本体（1）内的压力开关（3），压力开关（3）与电动压力调节阀（6）电连接。
  2. 根据权利要求1所述的一种防止电缆竖井积粉自燃的控制装置，其特征在于：还包括声光报警装置（2），声光报警装置（2）包括温度开关、蜂鸣器和警示灯，温度开关设置在电缆竖井本体（1）内部，蜂鸣器和警示灯均与温度开关电连接。
  3. 根据权利要求1所述的一种防止电缆竖井积粉自燃的控制装置，其特征在于：输气管组包括压缩空气管（7）、送气管（5）和若干根分支管（4），压缩空气管（7）一端与压缩空气源（8）连接，另一端与送气管（5）中部垂直连接，送气管（5）平行于电缆竖井本体（1）设置，各分支管（4）一端与电缆竖井本体（1）连通，另一端均垂直送气管（5）设置。
  4. 根据权利要求3所述的一种防止电缆竖井积粉自燃的控制装置，其特征在于：任意相邻两根分支管（4）之间的间距为两米。
PCT/CN2023/089952 2022-04-22 2023-04-22 一种防止电缆竖井积粉自燃的控制装置 WO2023202716A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN217739985U (zh) * 2022-04-22 2022-11-04 华能罗源发电有限责任公司 一种防止电缆竖井积粉自燃的控制装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207588231U (zh) * 2017-12-29 2018-07-06 华能国际电力股份有限公司海门电厂 一种新型微正压防尘密封配电室
RU2667281C1 (ru) * 2018-01-31 2018-09-18 Олег Савельевич Кочетов Система пожаровзрывобезопасности для двухступенчатых пылеулавливающих устройств с акустическим циклоном в первой ступени
CN111649321A (zh) * 2020-07-24 2020-09-11 湖北东方化工有限公司 一种循环流化床锅炉沉降室的排灰装置及排灰方法
CN211990048U (zh) * 2020-04-19 2020-11-24 华能太仓发电有限责任公司 一种电缆桥架积粉智能清除系统
CN212433916U (zh) * 2020-06-19 2021-01-29 国家电网有限公司 一种高层建筑电缆竖井防电气火灾警示装置
CN212776766U (zh) * 2020-08-11 2021-03-23 大庆东油睿佳石油科技有限公司 一种物联网型cng存储井
CN113112684A (zh) * 2021-05-08 2021-07-13 中煤科工能源科技发展有限公司 井下无人售货机及售货方法
CN214403657U (zh) * 2021-03-03 2021-10-15 山东驭光电子科技有限公司 一种煤矿井下云雾智能抑尘系统
CN214670979U (zh) * 2021-03-23 2021-11-09 福建印象生态发展有限责任公司 一种建筑电气强电竖井结构
CN217739985U (zh) * 2022-04-22 2022-11-04 华能罗源发电有限责任公司 一种防止电缆竖井积粉自燃的控制装置

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207588231U (zh) * 2017-12-29 2018-07-06 华能国际电力股份有限公司海门电厂 一种新型微正压防尘密封配电室
RU2667281C1 (ru) * 2018-01-31 2018-09-18 Олег Савельевич Кочетов Система пожаровзрывобезопасности для двухступенчатых пылеулавливающих устройств с акустическим циклоном в первой ступени
CN211990048U (zh) * 2020-04-19 2020-11-24 华能太仓发电有限责任公司 一种电缆桥架积粉智能清除系统
CN212433916U (zh) * 2020-06-19 2021-01-29 国家电网有限公司 一种高层建筑电缆竖井防电气火灾警示装置
CN111649321A (zh) * 2020-07-24 2020-09-11 湖北东方化工有限公司 一种循环流化床锅炉沉降室的排灰装置及排灰方法
CN212776766U (zh) * 2020-08-11 2021-03-23 大庆东油睿佳石油科技有限公司 一种物联网型cng存储井
CN214403657U (zh) * 2021-03-03 2021-10-15 山东驭光电子科技有限公司 一种煤矿井下云雾智能抑尘系统
CN214670979U (zh) * 2021-03-23 2021-11-09 福建印象生态发展有限责任公司 一种建筑电气强电竖井结构
CN113112684A (zh) * 2021-05-08 2021-07-13 中煤科工能源科技发展有限公司 井下无人售货机及售货方法
CN217739985U (zh) * 2022-04-22 2022-11-04 华能罗源发电有限责任公司 一种防止电缆竖井积粉自燃的控制装置

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