CN203702121U - Water bursting simulation device used for coal underground gasification model experiments - Google Patents
Water bursting simulation device used for coal underground gasification model experiments Download PDFInfo
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- 230000009172 bursting Effects 0.000 title 1
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Abstract
本实用新型涉及一种用于煤炭地下气化模型实验的涌水模拟装置，用于煤炭地下气化模型实验炉进行煤层涌水先导实验，包括涌水高压容器、涌水主管、涌水支管、高压氮气瓶；所述涌水高压容器设有进水口、涌水口、加压口；所述进水口连接水源，所述加压口连接所述高压氮气瓶，所述涌水口连接涌水主管，所述涌水主管连接到煤炭地下气化模型实验炉的炉内、与炉内的多支水平方向设置的涌水支管连接；在每支所述涌水支管上设有多个朝向下方的涌水孔；本实用新型的有益效果是：可以对涌水条件下的煤炭地下气化过程进行模拟，并通过数据分析可以预测现场煤炭地下气化涌水参数对煤气产品质量的影响，获取影响煤气质量的临界涌水量，提前对气化工艺进行调整。
The utility model relates to a water gushing simulation device for an underground coal gasification model experiment, which is used for a coal seam water gushing pilot experiment in an underground coal gasification model experimental furnace, comprising a high-pressure water gushing container, a water gushing main pipe, a water gushing branch pipe, and a high-pressure nitrogen cylinder; The water gushing high-pressure container is provided with a water inlet, a water gushing port, and a pressurizing port; the water gushing port is connected to a water source, the pressurizing port is connected to the high-pressure nitrogen cylinder, the water gushing port is connected to a water gushing main pipe, and the water gushing main pipe is connected to a coal mine The furnace of the underground gasification model experimental furnace is connected with multiple water gushing branch pipes arranged in the horizontal direction in the furnace; each of the water gushing branch pipes is provided with a plurality of water gushing holes facing downward; the beneficial effects of the utility model are: It can simulate the underground coal gasification process under water gushing conditions, and through data analysis, it can predict the impact of on-site underground coal gasification water gushing parameters on the quality of gas products, obtain the critical water gushing volume that affects the gas quality, and adjust the gasification process in advance .
Description
技术领域 technical field
本实用新型属于煤炭地下气化实验装置，尤其涉及一种用于煤炭地下气化模型实验的涌水模拟装置。 The utility model belongs to an underground coal gasification experiment device, in particular to a water gushing simulation device used for an underground coal gasification model experiment.
背景技术 Background technique
煤炭地下气化是针对煤层的原位气化，可视为传统煤炭资源开采工艺的辅助技术。即传统煤炭开采技术开采不经济或无法开采的煤炭资源，或经过传统煤炭开采技术开采后的残留煤层，均可尝试利用煤炭地下气化的方法进行气化开采，将煤中的化学能利用化学的方法进行转化，并在地面以煤气利用的方式进行能源的利用。然而，煤炭地下气化技术的广泛应用受煤层水文地质条件的影响，甚至制约该技术的发展。水文地质条件对煤炭地下气化技术的影响主要体现在煤层赋存条件下来自围岩的涌水。一定量的涌水可以参与煤层气化反应，发生水蒸汽的分解反应，获得大量的氢气，改善地下气化煤气的品质。当煤层围岩涌水量超过一定值之后，过量的涌水消耗煤层燃烧反应所释放的热量，降低了煤层还原反应所需的热量，遏制水煤气反应的发生，降低了煤气的品质，恶化了煤炭地下气化条件。因而，煤层围岩的涌水条件将是开展煤炭地下气化的先决条件，也是选择煤炭气化场址的重要影响因素。为了获取某一潜在气化场址对煤炭地下气化反应过程稳定性的影响，需通过煤炭地下气化实验室模拟实验进行煤层涌水先导实验，获取对煤层气化产生积极影响的涌水量临界值，进而指导气化场址选择以及工艺运行参数的优化。现有技术是采用气化炉进行煤炭地下气化实验室模拟实验，在气化炉内的涌水管路直接与水管连接，利用水管的压力将水注入涌水管路中，为了优化涌水效果，在气化炉内涌水管外包裹2-3层石棉布，可模拟围岩涌水的渗流效果。但当气化炉内的压力逐渐升高之后，水管的压力无法将水压入涌水管中，导致涌水管失去涌水的功效，中断了涌水的连续性，且有气化炉内煤气反流入水管系统的可能，造成潜在的危险。而且现有系统是无法模拟深部煤层的气化实验，有一定局限性。 Underground coal gasification is the in-situ gasification of coal seams, which can be regarded as an auxiliary technology for traditional coal resource mining processes. That is to say, coal resources that are uneconomical or impossible to mine by traditional coal mining technology, or residual coal seams that have been mined by traditional coal mining technology, can be gasified by using underground coal gasification to utilize the chemical energy in coal. The method is converted, and the energy is utilized on the ground in the form of gas utilization. However, the wide application of underground coal gasification technology is affected by the hydrogeological conditions of coal seams, and even restricts the development of this technology. The impact of hydrogeological conditions on UCG technology is mainly reflected in the water gushing from surrounding rocks under the condition of coal seam occurrence. A certain amount of gushing water can participate in the coalbed gasification reaction, the decomposition reaction of water vapor occurs, a large amount of hydrogen can be obtained, and the quality of underground gasification gas can be improved. When the amount of water inflow from the surrounding rocks of the coal seam exceeds a certain value, the excessive water influx consumes the heat released by the coal seam combustion reaction, reduces the heat required for the coal seam reduction reaction, curbs the occurrence of water gas reaction, reduces the quality of the gas, and deteriorates the coal underground gas. conditions. Therefore, the water gushing condition of the surrounding rock of the coal seam will be a prerequisite for the development of underground coal gasification, and it is also an important factor affecting the selection of coal gasification sites. In order to obtain the influence of a potential gasification site on the stability of the underground coal gasification reaction process, it is necessary to conduct a pilot experiment of coal seam water influx through underground coal gasification laboratory simulation experiments to obtain the critical value of water inflow that has a positive impact on coal seam gasification , and then guide the selection of gasification sites and the optimization of process operating parameters. The existing technology is to use the gasifier to carry out the underground coal gasification laboratory simulation experiment. The water gushing pipeline in the gasifier is directly connected to the water pipe, and the pressure of the water pipe is used to inject water into the water gushing pipeline. In order to optimize the water gushing effect, the The water gushing pipe in the gasifier is wrapped with 2-3 layers of asbestos cloth, which can simulate the seepage effect of water gushing from surrounding rocks. However, when the pressure in the gasifier gradually increased, the pressure of the water pipe could not press the water into the water gushing pipe, causing the water gushing pipe to lose its function of gushing water, interrupting the continuity of the gushing water, and the gas in the gasifier flowed back into the water pipe The system may cause potential danger. Moreover, the existing system cannot simulate the gasification experiments of deep coal seams, which has certain limitations.
发明内容 Contents of the invention
本实用新型的目的是提出一种用于煤炭地下气化模型实验的涌水模拟装置的技术方案；调节涌水系统的压力，使涌水压力与气化炉状态压力适时相匹配，实现深部煤层围岩涌水模拟实验。 The purpose of this utility model is to propose a technical scheme of a water gushing simulation device used in underground coal gasification model experiments; adjust the pressure of the water gushing system to match the water gushing pressure with the state pressure of the gasifier in good time, so as to realize the water gushing of surrounding rocks in deep coal seams Simulation experiment.
为了实现上述目的，本实用新型的技术方案是：一种用于煤炭地下气化模型实验的涌水模拟装置，用于煤炭地下气化模型实验炉进行煤层涌水先导实验，包括涌水高压容器、涌水主管、涌水支管、高压氮气瓶；所述涌水高压容器设有进水口、涌水口、加压口；所述进水口连接水源，所述加压口连接所述高压氮气瓶，所述涌水口连接涌水主管，所述涌水主管连接到煤炭地下气化模型实验炉的炉内、与炉内的多支水平方向设置的涌水支管连接；在每支所述涌水支管上设有多个朝向下方的涌水孔。 In order to achieve the above purpose, the technical solution of the present utility model is: a water gushing simulation device for underground coal gasification model experiments, used for coal seam water gushing pilot experiments in underground coal gasification model experimental furnaces, including water gushing high-pressure containers, water gushing main pipes , a water gushing branch pipe, and a high-pressure nitrogen cylinder; the water gushing high-pressure container is provided with a water inlet, a water gushing port, and a pressurized port; the water inlet is connected to a water source, the pressurized port is connected to the high-pressure nitrogen cylinder, and the water gushing port is connected to a water gushing Main pipe, the main pipe for gushing water is connected to the furnace of the underground coal gasification model experimental furnace, and is connected with multiple water gushing branch pipes arranged horizontally in the furnace; each of the water gushing branch pipes is provided with a plurality of water gushing holes facing downward .
更进一步，所述涌水高压容器是工作压力大于0.6MPa的高压金属容器。 Furthermore, the water gushing high-pressure container is a high-pressure metal container with a working pressure greater than 0.6MPa.
更进一步，所述涌水高压容器设有液位计和压力表。 Furthermore, the water gushing high-pressure container is provided with a liquid level gauge and a pressure gauge.
更进一步，所述涌水高压容器的进水口设有进水阀，涌水高压容器的涌水口设有涌水阀，涌水高压容器的加压口设有加压阀；涌水高压容器还设有泄压阀。 Further, the water inlet of the water gushing high pressure container is provided with a water inlet valve, the water gushing high pressure container is provided with a water gushing valve, the pressurization port of the water gushing high pressure container is provided with a pressurizing valve; the water gushing high pressure container is also provided with a pressure relief valve .
更进一步，为了防止涌水支管中的水倒流回涌水高压容器，在所述涌水主管上设有止逆阀。 Furthermore, in order to prevent the water in the water gushing branch from flowing back into the water gushing high-pressure container, a check valve is provided on the gushing water main pipe.
更进一步，在位于煤炭地下气化模型实验炉炉外的所述涌水主管上设有压力变送器和流量计。 Furthermore, a pressure transmitter and a flow meter are provided on the main water gushing pipe located outside the underground coal gasification model experimental furnace.
更进一步，在煤炭地下气化模型实验炉内设有多条连通涌水主管与涌水支管的涌水分布管，每条涌水分布管连接多支涌水支管；涌水支管的一端连通涌水分布管，涌水支管的另一端是封闭端。 Furthermore, in the underground coal gasification model experimental furnace, there are multiple water gushing distribution pipes connecting the main water gushing pipe and the water gushing branch pipes. Each water gushing distribution pipe is connected to multiple water gushing branch pipes; The other end is a closed end.
更进一步，所述涌水主管的外径为8mm，所述涌水分布管的外径为8mm，所述涌水支管的外径为8mm；有两条互相平行设置的涌水分布管，每条涌水分布管连接多支水平设置的涌水支管，涌水支管的轴线与涌水分布管的轴线垂直；涌水支管的长度为200mm，相邻两支涌水支管的间距为300mm。 Furthermore, the outer diameter of the main water gushing pipe is 8 mm, the outer diameter of the water gushing distribution pipe is 8 mm, and the outer diameter of the water gushing branch pipe is 8 mm; there are two water gushing distribution pipes arranged parallel to each other, and each water gushing distribution pipe Connect multiple horizontal water gushing branch pipes, the axis of the water gushing branch pipe is perpendicular to the axis of the water gushing distribution pipe; the length of the water gushing branch pipe is 200mm, and the distance between two adjacent water gushing branch pipes is 300mm.
所述涌水支管的涌水孔的孔径为1.0mm；涌水孔以与垂线35°夹角的方向朝向下方，多个涌水孔在垂线两侧对称分布，相邻涌水孔在涌水支管轴线方向的间距为15mm。 The aperture of the water gushing hole of the water gushing branch pipe is 1.0 mm; the water gushing hole faces downward at an angle of 35° with the vertical line, and a plurality of water gushing holes are symmetrically distributed on both sides of the vertical line, and the adjacent water gushing holes are in the direction of the axis of the water gushing branch pipe. The spacing is 15mm.
本实用新型的有益效果是：可以对涌水条件下的煤炭地下气化过程进行模拟，并通过数据分析可以预测现场煤炭地下气化涌水参数对煤气产品质量的影响，获取影响煤气质量的临界涌水量，提前对气化工艺进行调整，可降低现场涌水条件下气化工艺的不确定性影响，消除不必要的现场涌水试验，减少现场试验原料的投入，降低试验成本。 The beneficial effects of the utility model are: the underground coal gasification process under the condition of water gushing can be simulated, and the influence of the on-site underground coal gasification water gushing parameters on the quality of gas products can be predicted through data analysis, and the critical water gushing volume affecting the gas quality can be obtained , Adjusting the gasification process in advance can reduce the uncertainty of the gasification process under the condition of on-site water influx, eliminate unnecessary on-site water influx tests, reduce the input of raw materials for on-site tests, and reduce test costs.
下面结合附图和实施例对本实用新型作一详细描述。 Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.
附图说明 Description of drawings
图1是本实用新型系统结构图； Fig. 1 is a structural diagram of the utility model system;
图2是本实用新型煤炭地下气化模型实验炉结构图； Fig. 2 is the structural diagram of the utility model underground coal gasification model experimental furnace;
图3是本实用新型涌水支管结构图； Fig. 3 is a structural diagram of the water gushing branch pipe of the utility model;
图4是本实用新型涌水支管截面图。 Fig. 4 is a cross-sectional view of the water gushing branch pipe of the utility model.
具体实施方式 Detailed ways
如图1、图2、图3、图4，一种用于煤炭地下气化模型实验的涌水模拟装置，用于煤炭地下气化模型实验炉进行煤层涌水先导实验，包括涌水高压容器10、涌水主管21、涌水支管22、高压氮气瓶30；所述涌水高压容器设有进水口11、涌水口12、加压口13；所述进水口连接水源，所述加压口连接所述高压氮气瓶，所述涌水口连接涌水主管，所述涌水主管连接到煤炭地下气化模型实验炉40的炉内、与炉内的多支水平方向设置的涌水支管连接；在每支所述涌水支管上设有多个朝向下方的涌水孔22a。 As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a water gushing simulation device for underground coal gasification model experiment is used for pilot experiment of coal seam water gushing in underground coal gasification model experimental furnace, including water gushing high-pressure container 10, water gushing Main pipe 21, water gushing branch pipe 22, and high-pressure nitrogen cylinder 30; the water gushing high-pressure container is provided with a water inlet 11, a water gushing port 12, and a pressure port 13; the water inlet is connected to a water source, and the pressure port is connected to the high-pressure nitrogen gas bottle , the water gushing outlet is connected to the main water gushing main pipe, and the water gushing main pipe is connected to the furnace of the underground coal gasification model experimental furnace 40, and is connected with a plurality of water gushing branch pipes arranged horizontally in the furnace; each of the water gushing branch pipes is provided with There are a plurality of water gushing holes 22a facing downward.
所述涌水高压容器是工作压力大于0.6MPa的高压金属容器。 The water gushing high-pressure container is a high-pressure metal container with a working pressure greater than 0.6 MPa.
所述涌水高压容器设有液位计14和压力表15。 The water gushing high-pressure container is provided with a liquid level gauge 14 and a pressure gauge 15 .
所述涌水高压容器的进水口设有进水阀16，涌水高压容器的涌水口设有涌水阀17，涌水高压容器的加压口设有加压阀18；涌水高压容器还设有泄压阀19。 The water inlet of the water gushing high pressure container is provided with a water inlet valve 16, the water gushing high pressure container is provided with a water gushing valve 17, and the pressurization port of the water gushing high pressure container is provided with a pressurizing valve 18; the water gushing high pressure container is also provided with a pressure relief valve 19.
在所述涌水主管上设有止逆阀50。 A non-return valve 50 is provided on the main water gushing main pipe.
在位于煤炭地下气化模型实验炉炉外的所述涌水主管上设有压力变送器60和流量计70。 A pressure transmitter 60 and a flow meter 70 are provided on the main water gushing pipe located outside the underground coal gasification model experimental furnace.
在煤炭地下气化模型实验炉内设有多条连通涌水主管与涌水支管的涌水分布管23，每条涌水分布管连接多支涌水支管；涌水支管的一端连通涌水分布管，涌水支管的另一端是封闭端。 In the underground coal gasification model experimental furnace, there are multiple water gushing distribution pipes 23 connected to the main water gushing pipe and the water gushing branch pipes. Each water gushing distribution pipe is connected to multiple water gushing branch pipes; is a closed end.
实施例一： Embodiment one:
如图1、图2、图3、图4，一种用于煤炭地下气化模型实验的涌水模拟装置，用于煤炭地下气化模型实验炉进行煤层涌水先导实验，包括涌水高压容器10、涌水主管21、涌水支管22、高压氮气瓶30；所述涌水高压容器设有进水口11、涌水口12、加压口13；所述进水口连接水源，所述加压口连接所述高压氮气瓶，所述涌水口连接涌水主管。 As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a water gushing simulation device for underground coal gasification model experiment is used for pilot experiment of coal seam water gushing in underground coal gasification model experimental furnace, including water gushing high-pressure container 10, water gushing Main pipe 21, water gushing branch pipe 22, and high-pressure nitrogen cylinder 30; the water gushing high-pressure container is provided with a water inlet 11, a water gushing port 12, and a pressure port 13; the water inlet is connected to a water source, and the pressure port is connected to the high-pressure nitrogen gas bottle , the water gushing port is connected to the water gushing main pipe.
煤炭地下气化模型实验炉是气化炉，气化炉的内部尺寸为4450×1120×1570mm（长×宽×高）。 The underground coal gasification model experimental furnace is a gasifier, and the internal size of the gasifier is 4450×1120×1570mm (length×width×height).
涌水高压容器是工作压力为1.0MPa的高压金属容器。 The water gushing high-pressure container is a high-pressure metal container with a working pressure of 1.0MPa.
涌水高压容器设有玻璃板液位计14和压力表15。 The water gushing high-pressure vessel is provided with a glass plate liquid level gauge 14 and a pressure gauge 15.
涌水高压容器的进水口设有进水阀16，涌水高压容器的涌水口设有涌水阀17，涌水高压容器的加压口设有加压阀18；涌水高压容器还设有泄压阀19。 The water inlet of the gushing water high-pressure container is provided with water inlet valve 16, and the gushing water mouth of gushing high-pressure container is provided with gushing valve 17, and the pressurization port of gushing water high-pressure container is provided with pressurizing valve 18;
在涌水主管上设有止逆阀50。 A non-return valve 50 is provided on the water gushing main pipe.
在位于煤炭地下气化模型实验炉炉外的所述涌水主管上设有压力变送器60和流量计70。 A pressure transmitter 60 and a flow meter 70 are provided on the main water gushing pipe located outside the underground coal gasification model experimental furnace.
在煤炭地下气化模型实验炉内设有两条连通涌水主管与涌水支管的涌水分布管，两条涌水分布管互相平行设置，每条涌水分布管连接多支涌水支管；多支涌水支管水平设置，涌水支管的轴线与涌水分布管的轴线垂直；涌水支管的一端连通涌水分布管，涌水支管的另一端是封闭端。 In the underground coal gasification model experimental furnace, there are two water gushing distribution pipes connecting the main water gushing pipe and the water gushing branch pipes. The two water gushing distribution pipes are arranged parallel to each other, and each water gushing distribution pipe is connected to multiple water gushing branch pipes; the multiple water gushing branch pipes are arranged horizontally. , the axis of the water gushing branch pipe is perpendicular to the axis of the water gushing distribution pipe; one end of the water gushing branch pipe is connected to the water gushing distribution pipe, and the other end of the water gushing branch pipe is a closed end.
涌水主管的外径为8mm，所述涌水分布管的外径为8mm，所述涌水支管的外径为8mm；涌水支管的长度为200mm，相邻两支涌水支管的间距L=300mm。 The outer diameter of the water gushing main pipe is 8 mm, the outer diameter of the water gushing distribution pipe is 8 mm, the outer diameter of the water gushing branch pipe is 8 mm; the length of the water gushing branch pipe is 200 mm, and the distance between two adjacent water gushing branch pipes is L=300 mm.
涌水支管的涌水孔22a的孔径D=1.0mm；涌水孔与垂线的夹角A=35°，朝向下方。多个涌水孔在垂线两侧对称分布，相邻涌水孔在涌水支管轴线方向的间距S=15mm。 The water gushing hole 22a of the water gushing branch pipe has an aperture D=1.0mm; the included angle A=35° between the water gushing hole and the vertical line is facing downward. Multiple water gushing holes are distributed symmetrically on both sides of the vertical line, and the distance between adjacent water gushing holes in the axial direction of the water gushing branch pipe is S=15mm.
煤炭地下气化模型实验过程如下： The experimental process of the underground coal gasification model is as follows:
首先,在煤炭地下气化模型实验炉内布置好煤层81和直接顶板82，煤层厚度为400mm，直接顶厚度为200mm。将涌水分布管布置在直接顶板上,涌水分布管连通涌水支管，涌水支管之间的间距为300mm。然后将涌水分布管与气化炉外的涌主管连接，并保证气化炉与涌水系统之间的密封性。 First, the coal seam 81 and the direct roof 82 are arranged in the underground coal gasification model experimental furnace, the thickness of the coal seam is 400 mm, and the thickness of the direct roof is 200 mm. Arrange the water gushing distribution pipe on the direct roof, and the water gushing distribution pipe is connected to the water gushing branch pipes, and the distance between the water gushing branch pipes is 300mm. Then connect the water gushing distribution pipe to the gushing main pipe outside the gasifier, and ensure the tightness between the gasifier and the water gushing system.
将涌水高压容器的进水阀与水源连接在一起，并关闭加压阀、泄压阀和涌水阀。打开进水阀向涌水高压容器注水，同时注意观察水位计。当水位显示达到设定最高值之后，关闭进水阀，停止向系统加水。本实施例中，水位显示设定的最高值为1200mm。 Connect the water inlet valve of the water gushing high-pressure container to the water source, and close the pressurizing valve, pressure relief valve and water gushing valve. Open the water inlet valve to fill the high-pressure container with water, and observe the water level gauge at the same time. When the water level display reaches the set maximum value, close the water inlet valve and stop adding water to the system. In this embodiment, the maximum value set for the water level display is 1200 mm.
当煤炭地下气化模型实验炉进行到需要向煤层涌水时，打开加压阀，缓慢开启高压氮气调节阀，随时观察压力表示值。当压力表示值略大于气化炉运行压力时，气化炉的运行压力为200Kpa。停止调节高压氮气调节阀31，并缓慢打开涌水高压容器底部的涌水阀，通过数据采集系统对压力变送器和流量计的数值进行在线采集，并在上位机界面显示。在实施涌水模拟过程中，随时注意压力表的数值，确保该数值大于气化炉的运行压力。 When the underground coal gasification model experimental furnace needs to pour water into the coal seam, open the pressurization valve, slowly open the high-pressure nitrogen regulating valve, and observe the pressure indication value at any time. When the indicated value of the pressure is slightly greater than the operating pressure of the gasifier, the operating pressure of the gasifier is 200Kpa. Stop adjusting the high-pressure nitrogen regulating valve 31, and slowly open the water influx valve at the bottom of the high-pressure water influx container, collect the values of the pressure transmitter and flowmeter online through the data acquisition system, and display them on the host computer interface. During the water inrush simulation process, pay attention to the value of the pressure gauge at any time to ensure that the value is greater than the operating pressure of the gasifier.
涌水模拟过程中，通过水位显示对涌水高压容器水位进行观察，当涌水高压容器水位低于设定最小值时，（50mm），关闭涌水阀，关闭氮气节阀，然后再关闭加压阀。并缓慢开启泄压阀，逐渐释放涌水高压容器内的氮气，降低系统压力。本实施例中，涌水高压容器水位最小值设定为50mm。当涌水高压容器内的压力释放完毕之后，关闭泄压阀，打开进水阀，向涌水高压容器内加水，准备下一次模拟过程。 During the water gushing simulation process, observe the water level of the gushing high-pressure container through the water level display. When the water level of the gushing high-pressure container is lower than the set minimum value (50mm), close the water gushing valve, close the nitrogen throttle valve, and then close the pressurization valve. And slowly open the pressure relief valve to gradually release the nitrogen in the water gushing high-pressure container to reduce the system pressure. In this embodiment, the minimum water level of the water gushing high-pressure vessel is set to 50 mm. After the pressure in the water gushing high-pressure container is released, close the pressure relief valve, open the water inlet valve, add water to the water gushing high-pressure container, and prepare for the next simulation process.
当煤炭地下气化模型实验炉中的压力大于涌水高压容器时，在涌水主管上的止逆阀可以防止涌水支管中的水倒流回涌水高压容器。 When the pressure in the underground coal gasification model experimental furnace is greater than that of the water gushing high-pressure container, the check valve on the water gushing main pipe can prevent the water in the water gushing branch pipe from flowing back into the water gushing high-pressure container.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297186A (en) * | 2014-10-29 | 2015-01-21 | 河南理工大学 | Comprehensive experiment system for coal underground gasification pollution evaluation and underground water pollution purification remediation |
| CN109326193A (en) * | 2018-11-20 | 2019-02-12 | 山东大学 | Experimental device and method for simulating water gushing and plugging of intersecting karst pipelines |
| CN113090243A (en) * | 2020-01-08 | 2021-07-09 | 中国石油天然气股份有限公司 | Coal underground gasification simulation experiment system |
| CN115977608A (en) * | 2022-12-20 | 2023-04-18 | 中联煤层气国家工程研究中心有限责任公司 | Experimental simulation measuring device for water invasion of gasification cavity side wall in coal gasification process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297186A (en) * | 2014-10-29 | 2015-01-21 | 河南理工大学 | Comprehensive experiment system for coal underground gasification pollution evaluation and underground water pollution purification remediation |
| CN109326193A (en) * | 2018-11-20 | 2019-02-12 | 山东大学 | Experimental device and method for simulating water gushing and plugging of intersecting karst pipelines |
| CN113090243A (en) * | 2020-01-08 | 2021-07-09 | 中国石油天然气股份有限公司 | Coal underground gasification simulation experiment system |
| CN113090243B (en) * | 2020-01-08 | 2023-05-02 | 中国石油天然气股份有限公司 | Underground coal gasification simulation experiment system |
| CN115977608A (en) * | 2022-12-20 | 2023-04-18 | 中联煤层气国家工程研究中心有限责任公司 | Experimental simulation measuring device for water invasion of gasification cavity side wall in coal gasification process |
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