CN203757234U - Hard steel tube and viscous tube coupled liquid delivery device - Google Patents

Abstract

The utility model relates to a device for coupling and transmitting liquid between a hard steel pipe and a viscoelastic pipeline, which is suitable for underground emulsion transmission in coal mines. The viscoelastic pipeline that realizes free bending transformation, and the pipeline joint and buckle nut that realize the connection between the hard steel pipe and the viscoelastic pipeline, this device is suitable for the low-pressure drop delivery of high-pressure emulsion in underground emulsion pump stations, and the delivery pipeline system Combining the advantages of hard steel pipe low pressure drop and viscoelastic pipe Louis bending, the combination of the two can meet the requirements of complex working conditions in the underground, and the unspliced hard steel pipe is a single body, which is convenient for transportation and can adapt to the narrow space in the underground working environment.

Description

A device for coupling a hard steel pipe and a viscoelastic pipeline to transmit liquid

technical field

The utility model relates to a device for coupling and transmitting liquid with a pipeline, in particular to a device for coupling and transmitting a liquid with a hard steel pipe and a viscoelastic pipeline, which is suitable for underground emulsion transmission in coal mines.

technical background

At present, the underground emulsion pumping station system of coal mines transports the emulsion to the coal mining face through a high-pressure hose with viscoelasticity, and then drives the hydraulic equipment on the working face. This is mainly due to the flexible characteristics of the high-pressure rubber hose, which can well adapt to the uneven and complex working conditions of the underground roadway. At the same time, the high-pressure rubber hose can be coiled together and is convenient for transportation, so it has been widely used. However, the high-pressure rubber hose is a viscoelastic pipeline formed by the rubber rubber layer and the steel wire reinforcement layer, that is, when the high-pressure emulsion passes through the high-pressure rubber hose, the high-pressure rubber hose will undergo viscous deformation and elastic deformation, and the hydraulic energy of the emulsion will be lost, making the pump In the transmission distance from the station exit to the hydraulic equipment of the working face, a large pressure drop occurs. In addition, the high-pressure rubber hose has complex dynamic characteristics in the process of high-pressure emulsion transmission, which is difficult to eliminate and control, which seriously affects the response speed and accuracy of the hydraulic equipment on the working face. Hard steel pipes for liquid transmission can effectively avoid such problems, but hard steel pipes cannot be bent, making it difficult to adapt to uneven and complex working conditions in underground roadways, and long hard steel pipes are also quite inconvenient to transport. In order to solve the above deficiencies, the utility model is proposed.

Utility model content

The purpose of this utility model is to overcome the deficiencies of the prior art, and propose a device for coupling and transmitting liquid between a hard steel pipe and a viscoelastic pipe, which utilizes the advantages of the low pressure drop of the hard steel pipe and the easy bending of the viscoelastic pipe, and the two are used in combination. It can meet the requirements of complex underground working conditions, and the spliced hard steel pipe is a single body, which is convenient for transportation and can adapt to the working environment with narrow underground space.

The technical solution adopted by the utility model to solve the technical problem is: a device for coupling and transmitting liquid between a hard steel pipe and a viscoelastic pipeline, including a hard steel pipe as the main body of liquid transmission, which can be connected between the two hard steel pipes. The pipeline realizes the viscoelastic pipeline with free bending transformation, and the pipeline joint and buckle nut to realize the connection between the hard steel pipe and the viscoelastic pipeline; the hard steel pipe includes a main body and joints connected to both ends of the main body, and the The inner diameter of the joint is larger than the inner diameter of the main body and is provided with an internal thread, and the joint between the main body and the joint is provided with a groove for installing a sealing ring; the viscoelastic pipeline includes a freely bendable high-pressure rubber hose located in the middle section, The two ends of the high-pressure rubber hose are provided with a connecting structure made of steel, and the connecting structure is provided with an external thread that can be connected with a buckle nut, and a limit step is provided inside the outer end; one end of the pipeline joint is provided with an external thread, It is connected to the hard steel pipe in rotation, and the other end is provided with a limit shoulder to connect with the limit step of the connection structure; one end of the buckle nut is provided with a step hole connected to the pipe joint, and the other end is provided with a rotatable connection with the connection structure internal thread.

The high-pressure rubber hose adopts a high-pressure rubber hose with an inner diameter of 10-30 mm and a steel wire reinforcement layer.

The outer surfaces of the connecting structure, joints and pipeline joints are all provided with parallel sections for easy installation and pre-tightening with a wrench.

The inner diameters of the main body of the hard steel pipe, the pipe joint and the viscoelastic pipeline are the same, and the joints are all provided with sealing rings for sealing.

The transmission method is as follows: the hard steel pipe is used as the main body of the transmission, and the connection part of the hard steel pipe adopts a viscoelastic pipeline that can be bent freely to realize the low-pressure drop transportation of the high-pressure emulsion in the complex tunnel environment of the coal mine.

The beneficial effects of the utility model are: a device for coupling transmission of a hard steel pipe and a viscoelastic pipeline, which is suitable for low-pressure drop transportation of high-pressure emulsion in an underground emulsion pump station, and the delivery pipeline system integrates a hard steel pipe with low pressure drop The combination of the advantages of viscoelastic and viscoelastic pipes can meet the requirements of complex working conditions in the mine, and the unspliced hard steel pipe is a single body, which is convenient for transportation and can adapt to the working environment of the narrow space in the mine.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Accompanying drawing 1 is the structural schematic diagram of the device for coupling the hard steel pipe and the viscoelastic pipeline to transmit the liquid.

Accompanying drawing 2 is the structure schematic diagram of the bending state of the device for coupling the rigid steel pipe and the viscoelastic pipeline to transmit the liquid.

Accompanying drawing 3 is the cross-sectional view of the hard steel pipe.

Attached Figure 4 is a cross-sectional view of the pipeline joint.

Figure 5 is a cross-sectional view of the viscoelastic pipeline.

Accompanying drawing 6 is a structural schematic diagram of an embodiment of a device for coupling a hard steel pipe and a viscoelastic pipeline to transport liquid.

In the figure, 1. Hard steel pipe, 1-1. Main body, 1-2. Joint, 2. Pipe joint, 3. Buckle nut, 4. Viscoelastic pipeline, 4-1. High-pressure rubber hose, 4-2 . Connection structure, 5. Sealing ring.

Detailed ways

In the accompanying drawings, a device for coupling and transmitting liquid between a hard steel pipe and a viscoelastic pipeline, including a hard steel pipe 1 as the main body of liquid transmission, which is connected between two hard steel pipes 1 so that the pipeline can be freely bent and transformed The viscoelastic pipeline 4, and the pipeline joint 2 and buckle nut 3 to realize the connection between the hard steel pipe 1 and the viscoelastic pipeline 4; the hard steel pipe 1 includes a main pipe body 1-1 and two pipes connected to the main pipe body 1-1 The joint 1-2 at the end, the inner diameter of the joint 1-2 is larger than the inner diameter of the main body 1-1 and is provided with internal threads, and the joint between the main body 1-1 and the joint 1-2 is provided with a sealing ring 5 Groove; the viscoelastic pipeline 4 includes a freely bendable high-pressure rubber hose 4-1 located in the middle section, and the two ends of the high-pressure rubber hose 4-1 are provided with a steel connecting structure 4-2, and the connecting structure 4- 2 is provided with an external thread that can be connected with the buckle nut 3, and a limit step is provided inside the outer end; one end of the pipeline joint 2 is provided with an external thread, which is rotatably connected with the hard steel pipe 1, and the other end is provided with a limit shaft The shoulder is inserted into the limit step of the connection structure 4-2; one end of the buckle nut 3 is provided with a stepped hole connected to the pipeline joint 2, and the other end is provided with an internal thread that is rotatably connected with the connection structure 4-2.

The high-pressure rubber hose 4-1 adopts a high-pressure rubber hose with an inner diameter of 10-30mm and a steel wire reinforcement layer.

The outer surfaces of the connection structure 4-2, the joint 1-2 and the pipe joint 2 are all provided with parallel sections that are convenient to install and pre-tighten with a wrench.

The main pipe body 1-1 of the hard steel pipe 1, the pipeline joint 2 and the viscoelastic pipeline 4 have the same inner diameter, and the joints are all provided with sealing rings 5 for sealing.

The transmission method is as follows: the hard steel pipe 1 is used as the main body of the transmission, and the connection part of the hard steel pipe 1 adopts a freely bendable viscoelastic pipeline 4, so as to realize the low-pressure drop transportation of the high-pressure emulsion in the complex tunnel environment of the coal mine.

Working process: between the hard steel pipe 1 and the viscoelastic pipeline 4, the connection is realized through the pipeline joint 2, all connection methods are threaded connection, and each connection part is provided with a sealing ring 5, as shown in Figure 1 and Figure 2 . Since the connecting part adopts the viscoelastic pipeline 4 that can be bent freely, the problem that the hard steel pipe 1 cannot adapt to the complex working conditions of the uneven coal mine roadway for the transmission of liquid is solved. During the pipeline layout process, the pipeline direction can be adjusted according to the roadway direction, as shown in Figure 5. The inner diameters of hard steel pipe 1, pipeline joint 2, and viscoelastic pipeline 4 are the same. In theory, no components will cause pressure fluctuations in the transmission of high-pressure emulsion in the pipeline. The main body is transmitted by hard steel pipe 1, which can effectively reduce The pressure drop during liquid transfer in an emulsion transfer system.

Claims (4)

1. A device for coupling a hard steel pipe and a viscoelastic pipeline to transmit liquid, characterized in that it includes a hard steel pipe (1) as the main body of liquid transmission, and is connected between two hard steel pipes (1) so that the pipeline A viscoelastic pipeline (4) that realizes free bending transformation, and a pipeline joint (2) and buckle nut (3) that realize the connection between the hard steel pipe (1) and the viscoelastic pipeline (4); the hard steel pipe ( 1) It includes the main body (1-1) and the joints (1-2) connected to both ends of the main body (1-1), the inner diameter of the joint (1-2) is larger than the inner diameter of the main body (1-1) and There is an internal thread, and the junction of the main body (1-1) and the joint (1-2) is provided with a groove for installing a sealing ring (5); the viscoelastic pipeline (4) includes a Freely bendable high-pressure rubber hose (4-1), the two ends of the high-pressure rubber hose (4-1) are provided with a connecting structure (4-2) made of steel material, and the connecting structure (4-2) is provided with a nut that can be buckled (3) Connected external thread, and a limit step is provided inside the outer end; one end of the pipeline joint (2) is provided with an external thread, which is rotatably connected with the hard steel pipe (1), and the other end is provided with a limit shoulder Connected with the limit step of the connection structure (4-2); one end of the buckle nut (3) is provided with a step hole connected to the pipeline joint (2), and the other end is provided with the connection structure (4-2) Internal thread for swivel connections. 2. A device for coupling and transmitting liquid between a hard steel pipe and a viscoelastic pipeline according to claim 1, characterized in that the high-pressure rubber hose (4-1) adopts a high-pressure rubber hose (4-1) with an inner diameter of 10-30 mm and a steel wire reinforcement layer. hose. 3. A device for coupling a hard steel pipe and a viscoelastic pipeline for liquid transmission according to claim 1, characterized in that the connection structure (4-2), the joint (1-2) and the pipeline joint ( 2) The outer surface is provided with a parallel section for easy installation and pre-tightening with a wrench. 4. A device for coupling and transmitting liquid between a hard steel pipe and a viscoelastic pipeline according to claim 1, characterized in that the main body (1-1) of the hard steel pipe (1) and the pipe joint (2) The inner diameter of the viscoelastic pipeline (4) is the same, and sealing rings (5) are arranged at the joints for sealing.