Drainage device for gas extraction pipeline

Abstract

The utility model discloses a drainage device for a gas extraction pipeline, and relates to the technical field of coal mining. Two ends of the confluence device are respectively connected with an extraction pipeline; lifting hooks are arranged at four corners of the top of the confluence device; the confluence device is hung at the top of a roadway through the lifting hooks; a water discharging pipe is arranged at the bottom of the confluence device and is connected with an automatic water discharging device; the device is convenient and fast to install, and manpower, material resources and sites are saved; efficient drainage is guaranteed through the automatic drainage device, the low-pressure extraction environment is maintained, and the efficiency is improved; the design of the slag removal opening facilitates maintenance, prevents blocking, reduces the failure rate, and provides support for stable operation of gas extraction operation.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, and in particular to a gas extraction pipeline water discharge device. Background Technology

[0002] In the coal mining process, gas drainage is of paramount importance. Underground gas drainage in coal mines uses specialized equipment to extract gas from the coal seam and goaf to the surface. On the one hand, it can reduce the amount of gas emitted during mining and prevent gas explosions. On the other hand, it can turn waste into treasure by developing gas resources, such as for power generation and heating, thereby reducing dependence on other energy sources, improving coal utilization, and reducing environmental impact.

[0003] However, current gas extraction technology has many drawbacks. Gas extraction pipelines often face problems such as water accumulation in the main and branch pipes and pipeline blockages. This leads to increased negative pressure in the gas extraction pump, significantly reducing the efficiency of the extraction system, and in severe cases, causing complete extraction failure. Gas extraction pumps also frequently malfunction. Moreover, existing methods have shortcomings in dealing with water accumulation in the pipelines generated during the extraction process. They cannot completely drain the water from the pipelines, and large amounts of water coming out of the borehole are difficult to remove in a timely manner. Impurities easily accumulate in the pipelines, especially when connected to the grid for extraction, which can easily cause problems such as excessively high negative pressure and severe vibration in the extraction pipeline. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a water discharge device for gas extraction pipelines, which solves the problems of difficult water treatment and easy accumulation of impurities in existing gas extraction pipelines.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A gas extraction pipeline water discharge device includes a manifold, with both ends of the manifold connected to the extraction pipeline. Hooks are provided at the four corners of the top of the manifold, and the manifold is hung on the top of the roadway via the hooks. A water discharge pipe is provided at the bottom of the manifold, and the water discharge pipe is connected to an automatic water discharge device. A slag removal port is opened at the bottom of the front of the manifold, and a sealing plate is pressed onto the slag removal port. The sealing plate is connected to the front of the manifold via fasteners.

[0007] Furthermore, the model of the automatic water dispenser is KDP21G.

[0008] Furthermore, there are two water outlet pipes, and each of the two water outlet pipes is equipped with an automatic water outlet device.

[0009] Furthermore, the manifold is detachably connected to the extraction pipeline.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The manifold is directly attached to the top of the roadway via hooks at its four corners, avoiding the limited ground space underground. This greatly simplifies the installation process, saving manpower and material costs and enabling rapid deployment of the device. This ensures that gas extraction can proceed quickly and reduces the accumulation of gas hazards caused by installation delays. The specially designed cleaning port at the bottom of the front of the manifold, along with the removable sealing plate and fasteners, greatly facilitates the cleaning of impurities in the pipeline water. Regular cleaning of impurities can effectively prevent them from accumulating and clogging inside the pipeline and device, avoiding a series of problems such as poor drainage, increased negative pressure, and extraction failure caused by blockages. The manifold acts as a reliable "water collection hub," using its enlarged internal space to collect water from all corners of the extraction pipeline, preventing water from accumulating inside the pipeline and causing blockage hazards.

[0012] 2. By setting up the KDP21G model automatic water drainer, the precise water level sensing and real-time water discharge control function ensure that once the water reaches the threshold, the valve will be opened automatically to drain the water quickly, preventing water from stagnating in the pipeline for a long time, maintaining the low-pressure operating environment of the extraction system, ensuring smooth gas extraction, and effectively improving the gas extraction efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] In the picture:

[0015] 1. Manifold; 2. Extraction pipeline; 3. Hook; 4. Automatic water discharge device; 5. Slag removal port; 6. Water discharge pipe. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0017] A gas extraction pipeline water discharge device includes a manifold 1, with both ends of the manifold 1 connected to the extraction pipeline 2. The manifold 1 has hooks 3 at its four corners and is hung on the top of the roadway via the hooks 3. The manifold 1 has a water discharge pipe 6 at its bottom and is connected to an automatic water discharger 4. The manifold 1 has a slag removal port 5 at its bottom front and a sealing plate is pressed onto the slag removal port 5. The sealing plate is connected to the front of the manifold 1 via fasteners.

[0018] The automatic water dispenser 4 is model KDP21G.

[0019] There are two water outlet pipes 6, and each of the two water outlet pipes 6 is equipped with an automatic water outlet device 4.

[0020] The manifold 1 is detachably connected to the extraction pipeline 2.

[0021] When using:

[0022] The construction workers first moved the manifold 1 to the designated installation location. With the hooks 3 at the four corners of the top of the manifold 1, a single person can easily operate it, hooking the hooks 3 onto the pre-planned support points on the top of the tunnel, quickly and stably completing the installation of the manifold 1, so that its two ends are accurately connected to the extraction pipeline 2. The whole process does not require complicated tools, which greatly saves installation time and labor costs.

[0023] After the gas drainage operation is started, as the gas flows within the drainage pipeline 2, water inevitably accumulates inside the pipeline due to factors such as geological conditions and ambient humidity, along with particulate matter such as coal slag and impurities. At this time, the manifold 1 plays a crucial role in collecting water. Its large internal space acts as a "water transfer station," efficiently collecting water from various parts of the drainage pipeline 2 and preventing the risk of blockage caused by localized water accumulation.

[0024] The water accumulated at the bottom of the manifold 1 is diverted through two drain pipes 6 installed at the bottom. KDP21G automatic drainers 4, installed on both drain pipes 6, immediately begin operation, using their built-in high-precision water level sensors to monitor the water level in the pipes in real time. When water accumulates in the underground gas extraction pipe, the pressure in the negative pressure balance pipe of the automatic drainer 4 decreases, causing the float to descend and opening the drain valve to discharge the water. Once the water is drained, the float rises, closing the drain valve and stopping the drainage. This automatically clears the water, preventing its accumulation in the pipes and ensuring a consistently low water level in the manifold 1. This maintains a stable low-pressure state within the extraction pipe 2, ensuring smooth gas extraction operations.

[0025] During prolonged operation, some impurities and coal slag flowing into the manifold 1 with the accumulated water will gradually settle at its bottom. When cleaning is required, maintenance personnel do not need to stop the entire gas extraction system. They only need to bring simple tools to the manifold 1, unscrew the fasteners, and gently remove the sealing plate, fully exposing the slag removal port 5. With the help of lighting tools, maintenance personnel can visually observe the internal sludge accumulation. Using tools such as shovels and brooms, they can clean out the sludge through the slag removal port 5. After cleaning, the sealing plate is re-pressed and the fasteners are tightened. The entire slag removal process is simple and quick, effectively preventing pipe blockage caused by excessive slag accumulation, and ensuring the continuous and stable operation of gas extraction.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas extraction pipeline water draining device, characterized in that: The system includes a manifold (1), with its two ends connected to the extraction pipeline (2). The manifold (1) has hooks (3) at the four corners of its top. The manifold (1) is hung on the top of the roadway via the hooks (3). The manifold (1) has a drain pipe (6) at its bottom. The drain pipe (6) is connected to an automatic drainer (4). The manifold (1) has a slag removal port (5) at the bottom of its front side. A sealing plate is pressed onto the slag removal port (5). The sealing plate is connected to the front side of the manifold (1) via fasteners.

2. A water drainage device for gas extraction pipes according to claim 1, characterized in that: The automatic water dispenser (4) is model KDP21G.

3. A water drainage device for gas extraction pipes according to claim 2, characterized in that: The water discharge pipe (6) has two pipes, and each pipe is equipped with an automatic water discharge device (4).

4. A water drainage device for gas extraction pipes according to claim 3, characterized in that: The manifold (1) is detachably connected to the extraction pipeline (2).

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