CN116105000A - A pipe connection device - Google Patents

Abstract

The invention provides a pipeline connection device, which relates to the field of chemical process pipelines. The pipeline connection device includes: at least one hose, the liquid inlet end of the hose is provided with an internal thread joint, the liquid outlet end of the hose is provided with an external thread joint, and the plurality of hoses pass through the The internal threaded joint is in screw connection with the external threaded joint; the first circular joint is used to connect the internal threaded joint at the liquid inlet end of the hose to the liquid outlet pipe; the second circular joint , the second circular joint is used to connect the external thread joint of the liquid outlet end of the hose to the liquid inlet pipe. The scheme of the present invention improves the safety of the device, saves the processing procedure, is quick and convenient to use, improves the debugging work efficiency, and can be used repeatedly to reduce the use cost.

Description

A pipe connection device

technical field

The invention relates to the field of chemical process pipelines, in particular to a pipeline connection device.

Background technique

During the commissioning of the post-processing process system, the flowmeter or mass flow controller has a small range, which does not meet the commissioning requirements, or there are abnormal problems such as burning out during use. Because there are no suitable spare parts on site, temporary measures (hereinafter referred to as temporary measures) are required. Connect the pipeline and continue to complete the debugging work. The current treatment method is to remove the instrument, process the pipe of equal length and weld the flange, and connect it to the original instrument position to realize the function of the medium passing through. In this way, although the debugging progress is guaranteed, due to the different types of instruments, the specifications of the processed tooling are different, and the connection with the original pipeline is a rigid connection. After some connections, there will be leakage due to the stress between the pipelines. There are safety hazards such as gas or liquid leakage. The tooling also has disadvantages such as long processing cycle, can only be used once, low utilization rate, and poor economic benefits. At the same time, it is difficult to ensure the cleanliness of the process pipeline, which leads to the problem of process pipeline blockage.

Contents of the invention

The invention provides a pipeline connection device. It solves the safety problems such as long processing cycle, low utilization rate, poor economic benefit and easy air leakage or liquid leakage after installation for temporary measures to connect the pipeline.

In order to solve the problems of the technologies described above, the technical solution of the present invention is as follows:

An embodiment of the present invention provides a pipeline connection device, comprising:

At least one hose, the liquid inlet end of the hose is provided with an internal thread joint, the liquid outlet end of the hose is provided with an external thread joint, and multiple hoses are connected by the internal thread joint and the external thread joint screw connected successively;

A first circular joint, the first circular joint is used to connect the internal threaded joint of the liquid inlet end of the hose to the liquid outlet pipeline;

The second circular joint is used to connect the external thread joint of the liquid outlet end of the hose to the liquid inlet pipeline.

Optionally, a filtering device is provided on the hose.

Optionally, the filter device includes: a filter box, a filter cover and a filter element;

Wherein, the first end of the filter box communicates with the internal thread joint, the second end of the filter box communicates with the external thread joint, the filter element is arranged in the filter box, and the filter box and The filter cover is sealed by hexagon socket bolts and sealing washers.

Optionally, the filter element is made of stainless steel wire mesh.

Optionally, both the first end of the first circular joint and the first end of the second circular joint are disc-shaped, and the second end of the first circular joint is provided with an external thread, so The second end of the second circular joint is provided with an internal thread;

The first end of the first circular joint is fixedly connected to the flange of the outlet pipe, and the second end of the first circular joint is screwed to the internally threaded joint;

The first end of the second circular joint is fixedly connected to the flange of the liquid inlet pipe, and the second end of the second circular joint is screwed to the externally threaded joint.

Optionally, on the disc at the first end of the first circular joint and on the disc at the first end of the second circular joint, a plurality of evenly distributed bolt slots are provided.

Optionally, the first end of the first circular joint is provided with a filter gasket, the filter mesh of the filter gasket is arranged in the first circular joint, and the gasket of the filter gasket is located in the on the first end surface of the first circular joint.

Optionally, the hose has a double-layer structure, the inner layer structure of the hose is made of ultra-high molecular weight polyethylene, and the outer layer structure of the hose is multi-layer synthetic fiber and stainless steel braided mesh.

Optionally, the length of the hose ranges from 500 mm to 5000 mm.

Optionally, the disc thickness at the first end of the first circular joint ranges from 16 mm to 20 mm;

the outer diameter of the disc at the first end of the first circular joint is 120 mm to 220 mm;

The disc at the first end of the first circular joint has an inner diameter of 15 mm.

Above-mentioned scheme of the present invention comprises following beneficial effect at least:

The above solution of the present invention uses at least one hose, the liquid inlet end of the hose is provided with an internal thread joint, the liquid outlet end of the hose is provided with an external thread joint, and the internal thread joints are passed between a plurality of hoses. The joint is in screw connection with the external threaded joint; the first circular joint is used to connect the internal threaded joint at the liquid inlet end of the hose to the liquid outlet pipe; the second circular joint, the The second circular joint is used to connect the external thread joint of the liquid outlet end of the hose to the liquid inlet pipeline. Therefore, the safety of the device is improved, the processing procedure is saved, the use is quick and convenient, the debugging work efficiency is improved, and at the same time, it can be used repeatedly, and the use cost is reduced.

Description of drawings

Fig. 1 is the schematic diagram of assembly when the pipeline connection device of the present invention is in use;

Fig. 2 is a schematic diagram of the overall structure of the pipeline connection device of the present invention;

Fig. 3 is the structural representation of the hose of the pipeline connection device of the present invention;

Fig. 4 is the schematic structural view after the filter device of the pipeline connection device of the present invention is installed;

Fig. 5 is a schematic structural view of the filter box of the filter device of the pipeline connection device of the present invention;

Fig. 6 is a schematic structural view of the filter element of the filter device of the pipeline connection device of the present invention;

Fig. 7 is a schematic structural view of the filter cover of the filter device of the pipeline connection device of the present invention;

Fig. 8 is a perspective view of the first circular joint of the pipeline connection device of the present invention;

Fig. 9 is a structural schematic diagram of the disk on the first end of the first circular joint of the pipeline connection device of the present invention;

Fig. 10 is a schematic structural view of the filter gasket of the pipeline connection device of the present invention.

Explanation of reference signs:

1. Hose; 11. Internal thread joint; 12. External thread joint; 21. First circular joint; 22. Second circular joint; 23. Bolt slot; 24. Filter screen for filter gasket; 25. Gasket of filter gasket; 31, liquid outlet pipe; 32, liquid inlet pipe; 4, filter device; 41, filter box; 42, filter cover; 43, filter element; 44, hexagon socket bolt;

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

As shown in Figures 1 to 3, an embodiment of the present invention proposes a pipeline connection device, including:

At least one hose 1, the liquid inlet end of the hose 1 is provided with an internal thread joint 11, and the liquid outlet end of the hose 1 is provided with an external thread joint 12, and a plurality of hoses 1 pass through the internal thread The joint 11 is in screw connection with the externally threaded joint 12;

A first circular joint 21, the first circular joint 21 is used to connect the internal thread joint 11 of the liquid inlet end of the hose 1 to the liquid outlet pipe 31;

The second circular joint 22 is used to connect the external threaded joint 12 of the liquid outlet end of the hose 1 to the liquid inlet pipe 32 .

In this embodiment, the hose 1 can be multiple, and the multiple hoses 1 can be screwed through the internal and external threads of the liquid inlet and the liquid outlet to realize the lengthening of the pipeline connection device. The pipe connection device is designed so that pipe connections with different distances and special-shaped spaces can be realized; in a preferred solution, when a plurality of the hoses 1 are used in combination, the diameters of the hoses 1 need to be kept the same, preferably DN (nominal diameter) 20, that is, the nominal diameter of the flexible pipe 1 is 20 millimeters, and the length of the flexible pipe 1 can be selected according to the distance between the liquid outlet pipe 31 and the liquid inlet pipe 32. The length is 500 mm (mm)/ The hoses 1 of different specifications such as 2000mm/5000mm are used in combination.

In an optional embodiment of the present invention, the hose 1 is provided with a filtering device 4 .

In this embodiment, the filter device 4 is used to filter the medium that needs to enter the liquid inlet pipe 32 to prevent foreign matter from entering the liquid inlet pipe 32 and causing damage to the liquid inlet pipe 32 and the equipment on the liquid inlet pipe 32. blockage; the setting of the filter device 4 is not unique, as long as it can meet the filtering requirements, as shown in Figure 4, a preferred setting method is directly set on the hose 1 by welding; as As shown in Figure 5, a preferred way is to set internal threads on the joint of the liquid inlet end of the filter device 4, and set external threads on the joint of the liquid outlet end of the filter device 4. When in use, the filter The device 4 can be connected between two hoses 1 by screw connection, or be connected between the hose 1 and the second circular joint 22 by screw connection.

As shown in FIGS. 5 to 7 , in an optional embodiment of the present invention, the filter device 4 includes: a filter box 41 , a filter cover 42 and a filter element 43 ;

Wherein, the first end of the filter box 41 communicates with the internal thread joint 11, the second end of the filter box 41 communicates with the external thread joint 12, and the filter element 43 is arranged in the filter box 41 , the filter box 41 and the filter cover 42 are sealed by hexagon socket bolts 44 and sealing washers 45 .

In this embodiment, the design of the filter cover 42 of the filter device 4 can facilitate the replacement of the filter element 43 in the use process, and the filter element 43 can filter impurities and foreign objects of 1mm and above size, and can be filled with filter materials (filtering) Cotton), so as to adapt to the filtration needs of different conditions.

In an optional embodiment of the present invention, the filter element 43 is made of stainless steel wire mesh.

In this embodiment, the material of the filter element 43 is not unique, and can be adjusted and replaced according to the medium to be transported by the liquid outlet pipeline 31. When the medium transported in the liquid outlet pipeline 31 is a high-temperature or corrosive medium, The material of the filter element 43 can preferably be made of stainless steel wire mesh. When the liquid outlet pipeline 31 transports water medium or compressed air, the material of the filter element 43 can preferably be made of synthetic fiber filter cotton, activated carbon and the like.

As shown in Figure 8 and Figure 9, in an optional embodiment of the present invention, the first end of the first circular joint 21 and the first end of the second circular joint 22 are both disc-shaped , the second end of the first circular joint 21 is provided with an external thread, and the second end of the second circular joint 22 is provided with an internal thread;

The first end of the first circular joint 21 is fixedly connected to the flange of the outlet pipe 31, and the second end of the first circular joint 21 is screwed to the internally threaded joint 11;

The first end of the second circular joint 22 is fixedly connected to the flange of the liquid inlet pipe 32 , and the second end of the second circular joint 22 is screwed to the external threaded joint 12 .

A plurality of evenly distributed bolt slots 23 are provided on the disk at the first end of the first circular joint 21 and on the disk at the first end of the second circular joint 22 .

In this embodiment, the structure of the second circular joint 22 is the same as that of the first circular joint 21, and the first end of the first circular joint 21 and the flange of the outlet pipe 31 are fixed by bolts Connection, the first end of the second circular joint 22 is fixedly connected with the flange of the liquid inlet pipe 32 by bolts; the design of the first circular joint 21 and the second circular joint 22 makes the The pipe connection device can be reused, and at the same time, it eliminates the safety hazards such as air leakage or liquid leakage due to the stress between the pipes during rigid connection. It also has the advantages of quick and simple installation; during use, it can also Disconnect the connection with the liquid inlet pipe 32 at any time according to requirements, and quote the conveying medium in the liquid outlet pipe 31 to other pipes; the design of the bolt clamping groove 23 is to make the first circular joint 21 and The second circular joint 22 can connect flanges of different sizes through bolts;

In a preferred solution, the dimensions of the threaded joints at the second end of the first circular joint 21 and the second end of the second circular joint 22 are both DN20;

The value range of the disc thickness at the first end of the first circular joint 21 and the disc thickness at the first end of the second circular joint 22 is 16 mm to 20 mm;

The outer diameter of the disc at the first end of the first circular joint 21 and the outer diameter of the disc at the first end of the second circular joint 22 range from 120 mm to 220 mm;

The inner diameter of the disc at the first end of the first circular joint 21 and the inner diameter of the disc at the first end of the second circular joint 22 are both 15mm;

The width of the bolt slot 23 is 14 mm, and the diameter of the central circle is 50 mm to 90 mm. If the bolt M12 is used, the size range of the flange that can be connected is: DN10 to DN25; in another preferred solution, the bolt slot 23 The width of the flange is 18mm, the diameter of the central circle is 100mm to 160mm, and the bolt M16 is suitable, and the flange size range that can be connected is: DN32 to DN80.

As shown in Fig. 10, in an optional embodiment of the present invention, a filter gasket is provided at the first end of the first circular joint 21, and the filter mesh 24 of the filter gasket is arranged on the first In the circular joint 21 , the gasket 25 of the filter gasket is located on the first end surface of the first circular joint 21 .

In this embodiment, the stainless steel filter mesh of the filter gasket 24 is used to filter the medium entering the hose 1, and can filter impurities and foreign objects with a size of 1 mm or more to prevent foreign objects from clogging the hose 1. The gasket of the above-mentioned filter gasket 24 can be used for sealing when the first circular joint 21 is connected to the outlet pipe 31 .

In an optional embodiment of the present invention, the hose 1 has a double-layer structure, the inner layer structure of the hose 1 is made of ultra-high molecular weight polyethylene, and the outer layer structure of the hose 1 is poly Layers of synthetic fiber and stainless steel woven mesh.

In this embodiment, the multi-layer synthetic fiber of the outer layer of the hose 1 is spirally wound on the inner layer of the hose 1, and 316 stainless steel braided mesh is used to wrap the synthetic fiber, so that it has good flexibility. At the same time, it has the advantages of corrosion resistance, aging resistance and high pressure resistance, so as to meet the complex environment of chemical process.

In an optional embodiment of the present invention, the length of the hose 1 ranges from 500 mm to 5000 mm.

The assembly process of the pipeline connection device described in this embodiment is as follows: first close the throttle valve on the liquid outlet pipeline 31, then remove the instruments and pipelines that need to be short-circuited, and measure the liquid outlet pipeline 31 and the pipeline after the removal is completed. The distance between the liquid inlet pipes 32 and the size of the flange on the liquid outlet pipe 31 and the flange on the liquid inlet pipe 32, and combine the pipe connection device according to the requirements of use; then the assembled pipe The two ends of the connection device are respectively fastened to the flange of the liquid outlet pipe 31 and the flange of the liquid inlet pipe 32; then open the relevant valve to verify whether the pipeline is unobstructed and whether the flange is leaking, and then pass through the liquid outlet pipe 31. The throttling valve described above replaces the flow meter or the mass flow to control the adjustment of the flow, and adjust the flow to the usage requirement; later, the filter element 43 of the filter device 4 can be replaced or cleaned regularly according to the site conditions.

The pipeline connection device of the present invention solves the problems of many manufacturing processes and long processing cycle, saves processing steps, is quick and convenient to use, and improves the debugging work efficiency; the specific benefits are as follows: 1. The combined form of the pipeline connection device It has a wide range of applications and is easy to operate. It can replace various types of pipeline connection devices, solves the problem that the original tooling can only be used once, avoids the waste of materials and labor, and improves economic benefits; 2. Compared with traditional connections, this device The tooling is equipped with a filter device, which can prevent foreign matter from entering the system and avoid abnormal problems such as foreign matter blocking the pipeline; 3. This device can be used for pipeline connection in various complex environments such as special-shaped spaces, and is relatively safe and reliable to use.

The above description is a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. A pipeline connection device, characterized in that, comprising: At least one hose (1), the liquid inlet end of the hose (1) is provided with an internal thread joint (11), the liquid outlet end of the hose (1) is provided with an external thread joint (12), a plurality of The hoses (1) are in screw connection with the external threaded joint (12) through the internal threaded joint (11); A first circular joint (21), the first circular joint (21) is used to connect the internal threaded joint (11) of the liquid inlet end of the hose (1) to the liquid outlet pipe (31); A second circular joint (22), the second circular joint (22) is used to connect the external threaded joint (12) of the liquid outlet end of the hose (1) to the liquid inlet pipe (32). 2. The pipeline connection device according to claim 1, characterized in that a filter device (4) is arranged on the hose (1). 3. The pipeline connection device according to claim 2, characterized in that, the filter device (4) comprises: a filter box (41), a filter cover (42) and a filter element (43); Wherein, the first end of the filter box (41) communicates with the internal thread joint (11), the second end of the filter box (41) communicates with the external thread joint (12), and the filter element ( 43) Set in the filter box (41), the filter box (41) and the filter cover (42) are sealed by hexagon socket bolts (44) and sealing washers (45). 4. The pipeline connection device according to claim 3, characterized in that, the filter element (43) is made of stainless steel wire mesh. 5. The pipeline connection device according to claim 1, characterized in that, the first end of the first circular joint (21) and the first end of the second circular joint (22) are both discs shape, the second end of the first circular joint (21) is provided with an external thread, and the second end of the second circular joint (22) is provided with an internal thread; The first end of the first circular joint (21) is fixedly connected to the flange of the liquid outlet pipeline (31), and the second end of the first circular joint (21) is connected to the internally threaded joint (11) Screw connection; The first end of the second circular joint (22) is fixedly connected to the flange of the liquid inlet pipe (32), and the second end of the second circular joint (22) is connected to the externally threaded joint (12) Screw connection. 6. The pipeline connection device according to claim 5, characterized in that, the disc at the first end of the first circular joint (21) and the first end of the second circular joint (22) A plurality of evenly distributed bolt clamping grooves (23) are provided on the discs. 7. The pipeline connection device according to claim 1, characterized in that, the first end of the first circular joint (21) is provided with a filter gasket, and the filter mesh (24) of the filter gasket is arranged on In the first circular joint (21), the gasket (25) of the filter gasket is located on the first end face of the first circular joint (21). 8. The pipeline connection device according to claim 1, characterized in that, the hose (1) has a double-layer structure, and the material of the inner layer structure of the hose (1) is ultra-high molecular weight polyethylene, so The outer structure of the hose (1) is multi-layer synthetic fiber and stainless steel braided net. 9. The pipeline connection device according to claim 1, characterized in that, the length of the hose (1) ranges from 500 mm to 5000 mm. 10. The pipeline connection device according to claim 1, characterized in that, the thickness of the disk at the first end of the first circular joint (21) ranges from 16 mm to 20 mm; The outer diameter of the disc at the first end of the first circular joint (21) is 120 mm to 220 mm; The disc at the first end of the first circular joint (21) has an inner diameter of 15 mm.

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