采煤工作面空冷器位置及风流参数优化研究

郭传清; 陶维国; 掌奕然; 赵绪帅; 苗德俊

doi:10.13347/j.cnki.mkaq.20230920

采煤工作面空冷器位置及风流参数优化研究

郭传清^1,,
陶维国¹,
掌奕然^{2, 3},
赵绪帅¹,
苗德俊^{2, 3}

1.
兖矿能源集团股份有限公司济宁二号煤矿，山东济宁 272000
2.
山东科技大学安全与环境工程学院，山东青岛 266590
3.
山东科技大学矿山岩层智能控制与绿色开采国家重点实验室，山东青岛 266590

基金项目: 山东省自然科学基金资助项目（ZR2020QE137）

详细信息

作者简介:
郭传清（1976—），男，山东单县人，研究员，工程硕士，从事煤矿智能化开采、安全管理方面的工作。E-mail：2419593669@qq.com

中图分类号: TD727+.5
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- PDF下载量: 7
出版历程
- 收稿日期: 2023-05-25
- 修回日期: 2023-08-05
- 刊出日期: 2024-06-29

Optimization study of air cooler position and air flow parameters in coal mining face

1.
Jining No.2 Coal Mine, Yankuang Energy Group Company Limited, Jining 272000, China
2.
College of Safety andEnvironmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
3.
Cultivation Base of State Key Laboratory of Intelligent Control and Green Mining of Rock Strata, Shandong University of Science and Technology, Qingdao 266590, China

摘要

摘要:
针对济宁二号煤矿10303采煤工作面高温热害问题，采用数值分析方法，建立了工作面物理模型，分析了风筒长度、风筒的出风口距离及温度等多因素对降温系统的影响，确定了不同工况（生产和停产）的温度控制参数；通过自动启闭控温设施控制空冷器出风温度，实现了不同作业下采煤工作面所需的制冷量，解决了工作面高温热害问题。结果表明：100 m风筒长度、50 m风筒出风距离的降温效果最好；当工作面正常开采作业时，出风温度设置应小于16.5 ℃，工作面的平均温度将降低3.7 ℃；当停采作业时，出风温度设置应小于20.5 ℃，此时工作面的平均温度将降低3.5 ℃；2种工况下的参数均能达到采煤工作面的温度控制目标。
- 降温控制系统 /
- 空冷器 /
- 冷负荷 /
- 数值模拟 /
- 热害治理
Abstract:
In order to solve the problem of high temperature and heat damage in the 10303 coal mining face of Jining No.2 Coal Mine, numerical analysis method was used to establish a physical model of the working face and to analyze the influence of multiple factors on the cooling system, such as the length of the wind pipe, the distance between the air outlet of the wind pipe and the temperature, and determine the temperature control parameters for different working conditions (production and shutdown), and then control the temperature of the air cooler air outlet through the automatic opening and closing of the temperature-control facilities, so that the required cooling capacity of the coal mining face is realized under different operations. The cooling capacity required by the working face is realized under different operations, and the problem of high-temperature heat damage in the working face is solved. The results show that the cooling effect of 100 m length of wind pipe and 50 m distance of wind pipe is the best. When the working face is under normal mining operation, the outlet temperature setting should be less than 16.5 ℃, and the average temperature of the working face will be reduced by 3.7 ℃; when the mining operation is stopped, the outlet temperature setting should be less than 20.5 ℃, and the average temperature of the working face will be reduced by 3.5 ℃, and the parameters of the two working conditions can achieve the temperature control target of the coal mining working face.
- cooling control system /
- air cooler /
- cooling load /
- numerical simulation /
- heat hazard management

HTML全文

图 1 工作面局部制冷降温风流温度变化过程

Figure 1. Temperature change process of local cooling air flow in working face

下载: 全尺寸图片幻灯片

图 2 采煤工作面模型图

Figure 2. Model of coal mining face

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图 3 模型网格划分

Figure 3. Model grid division

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图 4 不同风筒长度下进风巷道温度变化

Figure 4. Temperature changes in the intake tunnel under different duct lengths

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图 5 串联组合下不同出风距离的降温效果

Figure 5. Cooling effect of different air outlet distances under series combination

下载: 全尺寸图片幻灯片

图 6 开采和停采作业时不同出风口温度下采煤工作面温度

Figure 6. Temperature of the coal mining face under different air outlet temperature during mining and stop-mining operations

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图 7 10303采煤工作面降温系统图

Figure 7. Cooling system diagram of 10303 coal mining face

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表 1 降温设备参数

Table 1 Cooling equipment parameters

机组型号及名称	项目	数值
机组-1500/6000矿用防爆制冷装置	单台机组制冷量/kW	1500
	单台机组轴功率/kW	341
	单台机组主电机功率/kW	400
	单台机组油泵电机功率/kW	1.1
卧式壳管式冷凝器	冷却水侧阻力损失/MPa	≤0.1
	冷却水进水温度/℃	30
	冷却水出水温度/℃	40
	冷却水流量/（m³·h⁻¹）	160
	冷却水进出管径/mm	DN200
满液式蒸发器	载冷剂侧阻力损失/MPa	≤0.1
	载冷剂流量/（m³·h⁻¹）	120
	冷冻水进出管径/mm	DN150
空冷器-450	压力等级/PN	64
	冷却功率/kW	450
	进风温度/℃	32
	出风温度/℃	22
	进水温度/℃	5
	出水温度/℃	16

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