A high-pressure, high-flow-rate booster for use in underground coal mines

Abstract

This utility model discloses a high-pressure, high-flow-rate booster for use in underground coal mines, comprising a first frame, a second frame, an air compressor main unit, a gas-liquid separator, and a cooler; the cooler integrates an air cooling channel and a liquid cooling channel; the first frame and the second frame are detachably connected; the air compressor main unit is mounted on the first frame; the cooler is mounted on the second frame; the gas-liquid separator is mounted on either the first or second frame; the output end of the air compressor main unit is connected to the input end of the gas-liquid separator via a first pipeline; the air output end of the gas-liquid separator is connected to the input end of the air cooling channel via a second pipeline; the liquid output end of the gas-liquid separator is connected to the input end of the liquid cooling channel via a third pipeline; and the output end of the liquid cooling channel is connected to the oil inlet of the air compressor main unit via a fourth pipeline.

Description

Technical Field

[0001] This utility model relates to the field of air boosting technology in underground coal mines, and in particular to a high-pressure, high-flow boosting device for use in underground coal mines. Background Technology

[0002] In the mining of extra-thick coal seams, to achieve a pressure-driven, uniform de-hazard-clearing process, it is urgently necessary to apply intelligent energy-enhancing and flow-promoting equipment with high flow rate and high pressure characteristics underground in coal mines. Specifically, the equipment outlet pressure should reach 3MPa and the volumetric flow rate should reach 1500m³. 3 / h.

[0003] The development of such equipment requires initial screening of suitable models. In the industrial sector, commonly used positive displacement compressors for gas boosting and compression mainly include reciprocating piston compressors and rotary screw compressors. Among them, reciprocating piston compressors have a wide pressure range (up to 350MPa) and a wide flow range (up to 500m³ / h). 3 While it boasts high energy efficiency, according to the "Notice of the State Administration of Work Safety on Issuing the Catalogue of Outdated Safety Technologies, Processes and Equipment (2016)" (Anjian Zongkeji

[2016] No. 137) issued by the State Administration of Work Safety in 2016 and the "Notice of the State Administration of Mine Safety on Issuing the Catalogue of Advanced and Applicable Technologies and Equipment for Mine Safety Promotion and the Catalogue of Outdated Processes and Equipment Elimination in 2024" issued by the State Administration of Mine Safety in June 2024, reciprocating piston compressors have been explicitly prohibited from use in the mining sector. Therefore, this model has been excluded.

[0004] Based on the above, due to industry regulations, existing single screw air compressors cannot meet the requirements of 1500m. 3 The required flow rate is / h, necessitating the connection of a flow booster to increase the overall flow rate. However, existing flow boosters are excessively large, especially in underground coal mine environments where their integrated frame structure makes transportation extremely difficult, severely restricting their deployment and application underground. Further improvements are needed. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a high-pressure, high-flow-rate booster device for use in underground coal mines.

[0006] A high-pressure, high-flow-rate booster device for use in underground coal mines, designed for this purpose, includes a first frame, a second frame, an air compressor main unit, a gas-liquid separator, and a cooler;

[0007] The cooler integrates air cooling channels and liquid cooling channels.

[0008] The first frame and the second frame are detachably connected;

[0009] The air compressor main unit is mounted on the first frame;

[0010] The cooler is mounted on the second frame;

[0011] The gas-liquid separator is mounted on the first frame or the second frame;

[0012] The output end of the air compressor main unit is connected to the input end of the gas-liquid separator via a first pipeline;

[0013] The air output end of the gas-liquid separator is connected to the input end of the air cooling channel via a second pipeline;

[0014] The liquid output end of the gas-liquid separator is connected to the input end of the liquid cooling channel via a third pipeline;

[0015] The output end of the liquid cooling channel is connected to the oil inlet of the air compressor main unit via a fourth pipeline.

[0016] Preferably, a pre-filter is also included, the input end of which is used to connect to a gas supply device, and the pre-filter is connected to the air inlet of the air compressor main unit.

[0017] Preferably, the pre-filter is fixedly mounted on the second frame.

[0018] Preferably, the gas-liquid separator is mounted on the first frame.

[0019] Preferably, both the first frame and the second frame are equipped with gantry frames.

[0020] Preferably, an oil filter is installed on the fourth pipeline.

[0021] Preferably, a one-way valve is installed on the first pipeline.

[0022] Preferably, the first frame and the second frame are connected by a number of fasteners.

[0023] Compared with existing technologies, this invention effectively solves the problem of excessive size and difficulty in underground transportation of existing flow booster equipment due to its integrated frame structure by dividing the equipment into a first frame and a second frame and adopting a detachable connection method. The disassembled frames can be transported separately, significantly reducing the difficulty of underground transportation and facilitating flexible deployment of the equipment in complex underground environments. Attached Figure Description

[0024] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0025] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention. Detailed Implementation

[0026] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0028] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0029] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0030] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0031] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0032] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application 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, they should not be construed as limitations on the embodiments of this application.

[0033] In the description of the embodiments of this application, unless otherwise explicitly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0034] See Figure 1 and Figure 2 A high-pressure, high-flow-rate booster for use in underground coal mines includes a first frame 110, a second frame 120, an air compressor main unit 20, a gas-liquid separator 30, and a cooler 40. The cooler 40 integrates air cooling channels and liquid cooling channels. The first frame 110 and the second frame 120 are detachably connected. The air compressor main unit 20 is mounted on the first frame 110. The cooler 40 is mounted on the second frame 120. The gas-liquid separator 30 is mounted on the first frame 110. On frame 110 or second frame 120; the output end of the air compressor main unit 20 is connected to the input end of the gas-liquid separator 30 via a first pipe 710; the air output end of the gas-liquid separator 30 is connected to the input end of the air cooling channel via a second pipe 720; the liquid output end of the gas-liquid separator 30 is connected to the input end of the liquid cooling channel via a third pipe 730; the output end of the liquid cooling channel is connected to the oil inlet of the air compressor main unit 20 via a fourth pipe 740.

[0035] The transportation and installation principle of this high-pressure, high-flow-rate booster equipment used in underground coal mines is based on its detachable frame structure and pre-installation design. The specific process is as follows:

[0036] During the factory delivery phase, the manufacturer pre-installs the air compressor main unit 20 and the gas-liquid separator 30 on the first frame 110 according to the equipment's structural layout, and pre-installs the cooler 40 on the second frame 120, completing the integrated assembly of each component with its corresponding frame. This pre-installation method allows most of the assembly work to be completed before delivery, reducing the installation steps on-site in the mine.

[0037] In the transportation process, since the first frame 110 and the second frame 120 are detachably connected, they can be separated and transported separately. The two separated frames are smaller in size, which can adapt to the narrow and complex transportation channels in coal mines, effectively solving the problem of transportation difficulties of traditional integrated frame structures and reducing the risk of equipment damage due to space constraints during transportation.

[0038] Upon arrival at the installation site, the first frame 110 and the second frame 120 are moved to their preset installation positions and securely connected as a single unit using a detachable connection structure. Then, following the preset piping connections, the output end of the air compressor 20 is connected to the input end of the gas-liquid separator 30 via the first pipe 710; the air output end of the gas-liquid separator 30 is connected to the air cooling channel input end of the cooler 40 via the second pipe 720; the liquid output end of the gas-liquid separator 30 is connected to the liquid cooling channel input end of the cooler 40 via the third pipe 730; and the liquid cooling channel output end is connected to the oil inlet of the air compressor 20 via the fourth pipe 740. This completes the installation and commissioning of the entire equipment, allowing for rapid deployment.

[0039] This invention also includes a pre-filter 50, the input end of which is connected to a gas supply device, and the pre-filter 50 is connected to the air inlet of the air compressor main unit 20. The input end of the pre-filter 50 is connected to the gas supply device, and the output end is connected to the air inlet of the air compressor main unit 20, forming the first purification barrier before the gas enters the air compressor main unit 20.

[0040] Furthermore, the pre-filter 50 is fixedly mounted on the second frame 120. The gas-liquid separator 30 is mounted on the first frame 110. From a spatial layout perspective, this separate arrangement can fully utilize the load-bearing space of the two frames, avoiding the space congestion problem caused by excessive concentration of components on the same frame. The air compressor main unit 20 and the gas-liquid separator 30 on the first frame 110 are arranged close to each other, which can shorten the length of the first pipeline 710 between them, reduce the pressure loss of gas during transmission, and improve the gas transmission efficiency; while the pre-filter 50 and the cooler 40 are installed together on the second frame 120, which can also make the spatial distribution of gas pretreatment and cooling stages more reasonable, and facilitate the compact design of the overall structure.

[0041] In terms of transportation and installation, since the pre-filter 50 and the gas-liquid separator 30 are pre-assembled components of different frames, the weight and volume of the two frames can be balanced during disassembly and transportation, avoiding increased transportation difficulties due to excessive load or size of a single frame. During installation, each component is pre-assembled with its corresponding frame, requiring only the connection of the frame and key pipelines, further simplifying the installation process on-site and improving installation convenience.

[0042] Furthermore, both the first frame 110 and the second frame 120 are equipped with gantry frames 60.

[0043] From a lifting perspective, the gantry 60 can serve as a dedicated lifting structure, facilitating the lifting and transport of the two frames separately using lifting equipment during equipment transportation and underground movement. This design solves the stress point problem during the handling of the frames and pre-installed components, making lifting operations more stable and safer, and significantly reducing the difficulty and risk of manual handling. It is particularly suitable for the equipment relocation needs in the complex environment of underground coal mines.

[0044] In terms of structural strength, the gantry 60 effectively enhances the overall rigidity of the corresponding frame. Since the air compressor main unit 20, gas-liquid separator 30, cooler 40 and other components are installed on the frame, they need to bear a certain weight. The presence of the gantry can distribute the load on the frame, reduce the deformation of the frame caused by vibration and uneven stress during equipment operation or transportation, ensure the stability of the installation position of each component, and thus maintain the sealing of pipeline connections and reduce the failure rate.

[0045] Furthermore, once the equipment is installed underground and the first frame 110 and the second frame 120 are connected as a whole, connecting a reinforcing rod between the two gantry frames according to actual needs can further enhance the connection strength and overall stability of the two frames. The reinforcing rod connects the two gantry frames into a single load-bearing unit, improving the equipment's ability to resist external impacts and its own vibrations during operation, preventing loosening of the frame connections after long-term use, and providing structural protection for the long-term stable operation of the equipment.

[0046] Furthermore, an oil filter is installed on the fourth pipeline 740. From the perspective of oil purification, during the circulation process, the oil may be mixed with impurities such as metal shavings generated by equipment wear, sealant residue, and dust from the outside. The oil filter can filter the oil flowing from the liquid cooling channel output end to the oil inlet of the air compressor main unit 20, effectively intercepting these impurities and preventing them from entering the air compressor main unit.

[0047] Furthermore, a check valve is installed on the first pipeline 710. From the perspective of media flow control, the check valve only allows the media to flow unidirectionally from the output end of the air compressor main unit 20 to the input end of the gas-liquid separator 30, which can effectively prevent the media in the gas-liquid separator from flowing back due to pressure fluctuations or other reasons. This anti-backflow function can prevent the media that has entered the gas-liquid separator from flowing back to the air compressor main unit, prevent the impact caused by the backflow of the media inside the main unit, and reduce unnecessary energy loss.

[0048] Furthermore, the first frame 110 and the second frame 120 are connected by a plurality of fasteners. Bolts and nuts can be used as fasteners. A plurality of corresponding flanges are provided on the first frame 110 and the second frame 120, and the bolts pass through the flange holes and are then locked with nuts. Of course, other existing fasteners can also be used to connect the first frame 110 and the second frame 120 according to this invention.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high pressure and high flow rate flow increasing equipment for use in a coal mine underground, characterized in that: It includes a first frame (110), a second frame (120), an air compressor main unit (20), a gas-liquid separator (30), and a cooler (40); The cooler (40) has an integrated air cooling channel and a liquid cooling channel inside; The first frame (110) and the second frame (120) are detachably connected; The air compressor main unit (20) is mounted on the first frame (110); The cooler (40) is mounted on the second frame (120); The gas-liquid separator (30) is mounted on the first frame (110) or the second frame (120); The output end of the air compressor main unit (20) is connected to the input end of the gas-liquid separator (30) via a first pipeline (710); The air output end of the gas-liquid separator (30) is connected to the input end of the air cooling channel via a second pipe (720); The liquid output end of the gas-liquid separator (30) is connected to the input end of the liquid cooling channel via a third pipeline (730); The output end of the liquid cooling channel is connected to the oil inlet of the air compressor main unit (20) via a fourth pipe (740).

2. The high pressure and high flow rate flow increasing equipment for underground coal mine of claim 1, wherein: It also includes a pre-filter (50), the input end of which is used to connect to a gas supply device, and the pre-filter (50) is connected to the air inlet of the air compressor main unit (20).

3. The high-pressure, high-flow-rate booster equipment for underground coal mines according to claim 2, characterized in that: The pre-filter (50) is fixedly mounted on the second frame (120).

4. The high-pressure, high-flow-rate booster equipment for underground coal mines according to claim 1, characterized in that: The gas-liquid separator (30) is mounted on the first frame (110).

5. The high-pressure, high-flow-rate booster equipment for underground coal mines according to claim 1, characterized in that: Both the first frame (110) and the second frame (120) are equipped with gantry frames (60).

6. The high-pressure, high-flow-rate booster equipment for underground coal mines according to claim 1, characterized in that: An oil filter is installed on the fourth pipeline (740).

7. The high-pressure, high-flow-rate booster equipment for underground coal mines according to claim 1, characterized in that: A check valve is installed on the first pipeline (710).

8. The high-pressure, high-flow-rate booster equipment for underground coal mines according to claim 1, characterized in that: The first frame (110) and the second frame (120) are connected by a number of fasteners.

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