A mine electromechanical equipment safety performance test bin

Abstract

This utility model discloses a safety performance testing chamber for mining electromechanical equipment, including a chamber body, an explosion-proof door, an observation window, a top sealing mechanism, an intermediate sealing partition, a foundation, and pipeline interfaces. The chamber body is a rectangular steel structure, using a composite design of steel plates and grid-shaped reinforcing ribs, and is made of carbon steel and stainless steel composite materials, making it vibration-resistant and explosion-proof. The intermediate sealing partition is removable, dividing the chamber body into two small compartments or forming a complete large chamber, flexibly adapting to the testing of small or large diesel engines. The top sealing mechanism uses a U-shaped groove and a venting membrane seal, allowing for rapid pressure relief in the event of an explosion. The side walls are equipped with a rotating explosion-proof door and a high-temperature tempered glass observation window for easy entry, exit, and observation. The foundation is fixed with anchor bolts, and the interior and exterior of the chamber are coated with antistatic, flame-retardant, and rust-proof paint. This utility model can withstand the impact of a methane-air or methane-hydrogen-air mixture explosion, ensuring safety; it is suitable for verifying the safety performance of diesel engines in underground coal mines, and has the advantages of high efficiency, safety, and economy.

Description

Technical Field

[0001] This utility model belongs to the field of testing technology for mining electromechanical equipment, and relates to a safety performance testing chamber for mining electromechanical equipment. Background Technology

[0002] With the rapid development of the coal industry, the level of mechanization in coal mines is constantly improving. For example, diesel engines for mining machinery and equipment, as an important power source, are widely used in underground transportation, excavation, and auxiliary operations. However, the underground environment of coal mines has unique characteristics, posing a potential risk of methane exceeding the limit. Methane is a flammable and explosive gas. If a diesel engine ingests air containing methane during operation, and its safety performance does not meet design requirements, it may cause combustion or even explosion accidents, resulting in casualties, equipment damage, and production interruption. Therefore, rigorous testing and verification of the safety performance of mining diesel engines has become a key aspect of ensuring safe underground operations.

[0003] Currently, the safety performance testing of mining diesel engines is typically conducted in underground tunnels. Specifically, testers dig a dedicated tunnel in the coal mine, place the diesel engine to be tested inside, and then seal the tunnel with plastic film or other simple materials to create a relatively enclosed space. Subsequently, a mixture of methane and air is injected into this space to simulate a possible underground explosion environment, and the diesel engine's operating performance and anti-explosion capabilities under these conditions are observed. However, this traditional testing method has many shortcomings, limiting its practical application.

[0004] First, the limited space in underground tunnel testing presents a significant challenge. Due to the typically narrow tunnels and complex geological conditions, accessing and operating the diesel engine is extremely difficult. Testing large diesel engines or multiple devices simultaneously often requires additional transport equipment and manual labor, increasing time and costs. Second, the complexity of the underground environment poses a threat to personnel safety. During testing, operators need to install sensors, lay pipelines, and monitor equipment status within the tunnel. However, methane gas itself carries an explosion risk; in the event of an accident, evacuation is difficult, and safety cannot be guaranteed. Furthermore, the unstable testing conditions in underground tunnels, coupled with the long pipelines for gas injection and real-time operation, make them susceptible to external interference, leading to decreased accuracy and reliability of test data. Finally, traditional methods have significant limitations in observing test conditions. Because tunnels are usually located deep underground and are often sealed with opaque plastic films, it is difficult for test personnel to visually monitor the diesel engine's operating status and any abnormal phenomena during the test. They must rely on sensor data, increasing the complexity of the analysis.

[0005] In recent years, with the development of industrial safety technology, some improvement solutions have been proposed, such as setting up simple test devices on the ground or using small simulation chambers. However, these solutions still do not fully solve problems related to space adaptability, safety, and testing efficiency. For example, simple ground-based devices often lack sufficient explosion resistance and cannot withstand the impact of a gas explosion; while small simulation chambers are difficult to meet the needs of testing large diesel engines or multiple devices simultaneously. In addition, existing technologies do not pay enough attention to the sealing and vibration resistance of the test chamber, which may lead to gas leaks or structural deformation during the test, further affecting the accuracy of the test results.

[0006] In summary, traditional underground tunnel testing methods and their improvements have significant shortcomings in terms of operational convenience, personnel safety, testing accuracy, and intuitive observation, making it difficult to meet the high standards required for safety performance testing of modern mining diesel engines. Therefore, developing a robust, easy-to-operate, and reliable testing device that can be used on the surface is an urgent technical problem to be solved. Utility Model Content

[0007] In view of this, the purpose of this utility model is to overcome the above-mentioned shortcomings and provide a safety performance test chamber for mining electromechanical equipment.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A safety performance testing chamber for mining electromechanical equipment includes a chamber body, an explosion-proof door, an observation window, a top sealing mechanism, an intermediate sealing partition, a foundation, and pipeline interfaces, wherein:

[0010] The cabin is a steel structure, designed as a cuboid, and fixed to the foundation;

[0011] The intermediate sealing partition is located in the middle of the cabin and is a detachable structure that divides the cabin into two independent compartments.

[0012] The top sealing mechanism is located on the top of the cabin and uses a venting membrane to seal, forming a closed space.

[0013] The blast-resistant door is a rotating structure and is installed on the side wall of the cabin;

[0014] The observation window is located on the side wall of the cabin;

[0015] The pipeline interface is located on the cabin and is used for inflation, deflation, and sensor testing.

[0016] Furthermore, the cabin adopts a composite structure of steel plates and grid-shaped reinforcing ribs, with arc-shaped transitions at the corners. The inner and outer surfaces of the cabin are coated with anti-static, flame-retardant and high-temperature resistant anti-rust paint.

[0017] Furthermore, the cabin is made of a composite material of carbon steel and stainless steel.

[0018] Furthermore, the top sealing mechanism includes a steel U-shaped groove, a venting membrane, and a spring plate. The U-shaped groove is located on the upper edge of the cabin. The venting membrane is a polyvinyl chloride film with rubber sealing strips on its sides. The spring plate is fixed with bolts to press the venting membrane into the U-shaped groove to achieve a seal.

[0019] Furthermore, the explosion-proof door is elliptical in shape, and there are two of them. It is manually driven to lock and open, and has an inward opening function.

[0020] Furthermore, the observation windows are made of high-temperature resistant tempered glass, and there are four of them, which are evenly distributed on the side wall of the cabin.

[0021] Furthermore, the foundation is fixed to the ground using anchor bolts evenly distributed.

[0022] Furthermore, the intermediate sealing partition is a portable and detachable structure, including a crossbar and a partition. The partition is fixed to the cabin by the crossbar, dividing the cabin into two small compartments of the same size, which can be used to accommodate two small diesel engines for testing, or disassembled to accommodate a large diesel engine for testing.

[0023] The beneficial effects of this utility model are as follows:

[0024] 1. Improved ease of operation: This utility model places the test chamber on the ground, adopts a cuboid structure, and is equipped with a rotating explosion-proof door, making it easier to access the diesel engine and avoiding the transportation difficulties caused by the narrow space of underground tunnels. At the same time, the detachable design of the central sealing partition allows the test chamber to be divided into two small compartments for testing two small diesel engines, or it can accommodate a large diesel engine by removing the partition, flexibly adapting to different testing needs and significantly improving the convenience and applicability of the equipment.

[0025] 2. Significantly Enhanced Safety: The test chamber employs a composite structure of steel plates and grid-shaped reinforcing ribs, combined with carbon steel and stainless steel materials, enabling it to withstand the impact of methane-air or methane-hydrogen-air gas explosions without deformation or damage. The top sealing mechanism, through a venting membrane design, can rapidly release pressure in the event of an explosion, effectively reducing the internal pressure and protecting the test chamber and surrounding personnel and buildings. Furthermore, the anti-rust paint applied to the inner and outer surfaces of the chamber provides anti-static, flame-retardant, and high-temperature resistance functions, further reducing the secondary risks caused by electrostatic sparks or high temperatures, ensuring the safety of the testing process.

[0026] 3. Improved intuitiveness of observation: Four high-temperature resistant tempered glass observation windows are set on the side wall of the test chamber, which are evenly distributed, allowing test personnel to clearly observe the operating status of the diesel engine and the test process from multiple angles. This overcomes the shortcomings of underground tunnels where it is difficult to monitor directly and improves the efficiency of data acquisition and anomaly handling.

[0027] 4. Balancing cost and durability: The chamber utilizes a composite material of carbon steel and stainless steel, along with a structural design of steel plates and reinforcing ribs, effectively reducing manufacturing costs while ensuring strength and vibration resistance. Anchor bolt fixing ensures the stability of the test chamber, extends its service life, and offers high economic and practical value.

[0028] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0030] Figure 1 This is a side view of the safety performance test chamber for mining electromechanical equipment in this utility model.

[0031] Figure 2 This is a top view of the safety performance test chamber for mining electromechanical equipment in this utility model.

[0032] Reference numerals: 1-hull; 2-blast-resistant door; 3-observation window; 4-top sealing mechanism; 5-intermediate sealing bulkhead; 6-foundation; 7-pipeline interface. Detailed Implementation

[0033] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0035] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0036] Example 1

[0037] like Figure 1 and Figure 2 As shown, this embodiment provides a safety performance test chamber for mining electromechanical equipment, used to test two small diesel engines simultaneously. It includes a chamber body 1, an explosion-proof door 2, an observation window 3, a top sealing mechanism 4, an intermediate sealing partition 5, a foundation 6, and a pipeline interface 7.

[0038] Cabin 1 is a steel structure made of carbon steel and stainless steel composite material. It is rectangular in shape, measuring 4 meters long, 2 meters wide, and 2 meters high. The interior of Cabin 1 employs a composite structure of steel plates and a grid-like reinforcing rib, with rounded corners to enhance vibration resistance. The inner and outer surfaces of Cabin 1 are coated with an anti-static, flame-retardant, and high-temperature resistant rust-proof paint. Cabin 1 is fixed to the ground by foundation 6, which uses eight evenly distributed anchor bolts to ensure structural stability.

[0039] Two blast-resistant doors 2 are elliptical in shape and are located on opposite side walls of compartment 1. The blast-resistant doors 2 are manually operated for locking and opening and have an inward opening function for easy personnel access and equipment handling.

[0040] The observation windows 3 are made of high-temperature resistant tempered glass. There are four of them, which are evenly distributed on the side walls of the chamber 1, with two windows on each side wall. The windows are 50 cm × 50 cm in size, so that the test personnel can observe the situation inside the chamber from the outside.

[0041] The top sealing mechanism 4 is located on the top of the chamber 1 and includes a steel U-shaped slot, a venting membrane, and a spring plate. The U-shaped slot is welded to the upper edge of the chamber 1. The venting membrane is a polyvinyl chloride film with rubber sealing strips embedded on its sides. The spring plate is fixed with bolts to press the venting membrane tightly into the U-shaped slot, forming a closed space. In the event of an explosion during the test, the venting membrane can rupture quickly to release pressure and ensure safety.

[0042] The intermediate sealing partition 5 is a portable and detachable structure, consisting of a crossbar and a partition. The crossbar is fixed to the middle of the inner wall of the chamber 1, and the partition is connected to the crossbar by bolts, dividing the chamber 1 into two identical compartments, each measuring 2 meters long, 2 meters wide, and 2 meters high. Each compartment can accommodate a small diesel engine (e.g., a 50 kW mining diesel engine) for testing. A rubber sealing strip seals the partition to the inner wall of the chamber 1, ensuring the independence of the two compartments.

[0043] Pipeline interfaces 7 are located on the side wall of chamber 1, with 2 interfaces on each side wall, for a total of 4 interfaces, used for inflation, deflation, and sensor testing respectively. Each chamber corresponds to 2 pipeline interfaces, which can independently control gas inflation and data acquisition.

[0044] How to use:

[0045] During the test, two small diesel engines were placed in two separate compartments through the blast-resistant door 2. The intermediate sealing partition 5 was installed and secured, the blast-resistant door 2 was closed and locked, and the venting membrane of the top sealing mechanism 4 was installed and secured with a spring plate. A predetermined concentration of methane-air mixture (e.g., 9.5% methane concentration) was injected into each compartment through the pipeline interface 7. Both diesel engines were started simultaneously to simulate an underground explosion environment and test their safety performance. During the test, personnel monitored the situation inside the two compartments in real time through the observation window 3 and recorded sensor data. In the event of an explosion, the top venting membrane would rupture to release pressure and ensure safety. After the test, the blast-resistant door 2 was opened, the equipment was removed, and the test was completed.

[0046] Example 2

[0047] like Figure 1 and Figure 2 As shown, this embodiment provides a safety performance test chamber for mining electromechanical equipment, used to test a large diesel engine, including a cabin body 1, an explosion-proof door 2, an observation window 3, a top sealing mechanism 4, an intermediate sealing partition 5 (in disassembled state), a foundation 6, and a pipeline interface 7.

[0048] Cabin 1 is a steel structure made of carbon steel and stainless steel composite material. It is rectangular in shape, measuring 4 meters long, 2 meters wide, and 2 meters high. The interior of Cabin 1 employs a composite structure of steel plates and a grid-like reinforcing rib, with rounded corners to enhance vibration resistance. The inner and outer surfaces of Cabin 1 are coated with an anti-static, flame-retardant, and high-temperature resistant rust-proof paint. Cabin 1 is fixed to the ground by foundation 6, which uses eight evenly distributed anchor bolts to ensure structural stability.

[0049] Two blast-resistant doors 2 are elliptical in shape and are located on opposite side walls of compartment 1. The blast-resistant doors 2 are manually operated for locking and opening and have an inward opening function for easy personnel access and equipment handling.

[0050] The observation windows 3 are made of high-temperature resistant tempered glass. There are four of them, which are evenly distributed on the side walls of the chamber 1, with two windows on each side wall. The windows are 50 cm × 50 cm in size, so that the test personnel can observe the situation inside the chamber from the outside.

[0051] The top sealing mechanism 4 is located on the top of the chamber 1 and includes a steel U-shaped slot, a venting membrane, and a spring plate. The U-shaped slot is welded to the upper edge of the chamber 1. The venting membrane is a polyvinyl chloride film with rubber sealing strips embedded on its sides. The spring plate is fixed with bolts to press the venting membrane tightly into the U-shaped slot, forming a closed space. In the event of an explosion during the test, the venting membrane can rupture quickly to release pressure and ensure safety.

[0052] In this embodiment, the intermediate sealing partition 5 is in a disassembled state. The crossbar originally fixed to the middle of the inner wall of the chamber 1 is retained, but the partition has been removed, so that the chamber 1 forms a complete test space with dimensions of 4 meters long, 2 meters wide and 2 meters high, which can accommodate a large diesel engine (e.g., a mining diesel engine with a power of 150 kilowatts) for testing.

[0053] Four pipeline interfaces 7 are located on the side wall of the chamber 1, and are used for inflation, deflation, and sensor testing, respectively. In this embodiment, all pipeline interfaces 7 serve the entire test environment of the chamber 1.

[0054] How to use:

[0055] During the test, a large diesel engine was placed inside the chamber 1 through the blast-resistant door 2. The intermediate sealing partition 5 was removed, the blast-resistant door 2 was closed and locked, and the venting membrane of the top sealing mechanism 4 was installed and secured with a spring plate. A predetermined concentration of methane-hydrogen-air mixture (e.g., 7% methane and 5% hydrogen) was injected into the chamber through the pipeline interface 7. The diesel engine was started to simulate an underground explosion environment and test its safety performance. During the test, personnel monitored the situation inside the chamber in real time through the observation window 3 and recorded sensor data. In the event of an explosion, the top venting membrane would rupture to release pressure and ensure safety. After the test, the blast-resistant door 2 was opened to remove the equipment, completing the test.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A safety performance testing chamber for mining electromechanical equipment, characterized in that, Includes the hull, blast-resistant doors, observation windows, top sealing mechanism, intermediate sealing bulkhead, foundation, and pipeline interfaces, among which: The cabin is a steel structure, designed as a cuboid, and fixed to the foundation; The intermediate sealing partition is located in the middle of the cabin and is a detachable structure that divides the cabin into two independent compartments. The top sealing mechanism is located on the top of the cabin and uses a venting membrane to seal, forming a closed space. The blast-resistant door is a rotating structure and is installed on the side wall of the cabin; The observation window is located on the side wall of the cabin; The pipeline interface is located on the cabin and is used for inflation, deflation, and sensor testing.

2. The safety performance testing chamber for mining electromechanical equipment according to claim 1, characterized in that, The cabin adopts a composite structure of steel plate and grid-shaped reinforcing ribs, with arc-shaped transitions at the corners. The inner and outer surfaces of the cabin are coated with anti-static, flame-retardant and high-temperature resistant anti-rust paint.

3. The safety performance testing chamber for mining electromechanical equipment according to claim 1 or 2, characterized in that, The cabin is made of a composite material of carbon steel and stainless steel.

4. The safety performance testing chamber for mining electromechanical equipment according to claim 1, characterized in that, The top sealing mechanism includes a steel U-shaped groove, a venting membrane, and a spring plate. The U-shaped groove is located on the upper edge of the cabin. The venting membrane is a polyvinyl chloride film with rubber sealing strips on its sides. The spring plate is fixed with bolts to press the venting membrane into the U-shaped groove to achieve a seal.

5. The safety performance testing chamber for mining electromechanical equipment according to claim 1, characterized in that, The explosion-proof door is elliptical in shape, and there are two of them. It is manually driven to lock and open, and has an inward opening function.

6. The safety performance testing chamber for mining electromechanical equipment according to claim 1, characterized in that, The observation windows are made of high-temperature resistant tempered glass, and there are four of them, which are evenly distributed on the side wall of the cabin.

7. The safety performance testing chamber for mining electromechanical equipment according to claim 1, characterized in that, The foundation is fixed to the ground using anchor bolts evenly distributed.

8. The safety performance testing chamber for mining electromechanical equipment according to claim 1, characterized in that, The intermediate sealing partition is a portable and detachable structure, including a crossbar and a partition. The partition is fixed to the cabin by the crossbar, dividing the cabin into two small compartments of the same size, which can be used to accommodate two small diesel engines for testing, or disassembled to accommodate a large diesel engine for testing.

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