JPH0230508Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connection device for a four-channel pipe body such as a chemical liquid injection pipe.

In recent years, as chemical injection methods have become more sophisticated, the demand for multi-channel injection pipes has increased. However, if an attempt is made to construct, for example, four channels using polymerized tubes, there are problems such as not only the weight of the tube becomes large but also the resistance inside the tube increases. Therefore, when constructing a parallel flow path in the outer tube instead of using a polymer tube, it is an extremely difficult problem to decide how to form the flow path at the connecting portion.

This invention was proposed in view of these circumstances.
The present invention will be explained below with reference to embodiments shown in the drawings.

1 and 2 show a swivel device, and FIG. 2 shows a state in which the swivel inner tube is rotated 90 degrees in the circumferential direction with respect to the state shown in FIG. 1. FIG. 4 shows the main body of the tube, and FIG. 5 shows how the tubes are connected to each other. Of course, the tube body is connected to the swivel device shown in FIGS. 1 and 2.

First, the swivel device shown in FIGS. 1 to 3 will be explained. 1 is a swivel outer cylinder, 2 is a bearing support cylinder that supports a bearing 3, and the swivel outer cylinder 1 has a swivel having supply ports 4a, 5a, 6a. Inner cylinders 4, 5, and 6 are housed inside, and an end piece 7 having a supply port 7a is disposed from the end, and is fastened to the swivel outer cylinder 1 with a bolt (not shown) to hold down the swivel inner cylinders 4, 5, and 6. ing. Reference numeral 8 denotes an annular check valve made of a flexible material and partitions each flow path. Reference numeral 9 denotes a swivel inner cylinder, which is supported by a bearing 3 so as to be rotatable in the circumferential direction. This swivel inner tube 9 is integrated with outer joints 10 and 11 as an outer tube and a connecting tube portion via a threaded portion. Four first to fourth flow paths 12, 13, 14, and 15 are formed in parallel in the swivel inner tube 9.

A first joint 16 is arranged on the distal end side of the swivel inner tube 9, and this first joint 16 has the first to fourth joints.
First to fourth channels 17, 18, 19, and 20 are formed corresponding to the channels 12, 13, 14, and 15, respectively. The third flow paths 17, 18, 19 are the joint pipe 2.
1, 22, and 23, and the fourth flow path 1
5 and 20 are in direct communication with each other. Around the first joint 16, inside the outer joint 11, a second joint 24 and a third joint 25 are integrated concentrically with a gap therebetween via screws. As a result, each of the joints 16, 24, 25 constitutes a triple joint within the outer joints 11, 10.

On the other hand, the first fluid fed from the supply port 7a is
It enters the first flow path 12 through the opening at the end of the swivel inner tube 9 , reaches the first flow path 17 through the joint tube 21 , and flows out through the opening at the end of the first joint 16 . The second fluid fed from the supply port 4a enters the second flow path 13 from the inlet 26 on the peripheral wall of the swivel inner tube 9, and since the end is closed by the blind plug 27, it passes through the joint tube 22. It then reaches the second flow path 18, breaks the peripheral wall of the first joint 16, and escapes through the gap between the first and second joints 16 and 24. The third fluid fed from the supply port 5a enters the third flow path 14 from the inlet 28 of the swivel inner tube 9, and flows into the joint tube 23.
, exits through the third flow path 19, and exits into the gap between the second and third joints 24, 25. Finally, supply port 6
The fourth fluid fed from a enters the fourth flow path 15 from the inlet 29, reaches the fourth flow path 20 of the first joint 16, breaks the wall of the first joint, and flows out. It passes through the gap between the joints 10 and 11 and the third joint 25.

The first to fourth fluids flowing through the swivel device, which is regarded as one tube, flow into the other tube shown in FIG. 4 from the left side thereof. This other pipe body has an outer joint 51 that forms a part of the outer pipe and a connecting pipe part on the distal end side of the outer pipe 50, and has a projecting joint 52 on the left side and first to third receivers on the right side. Joint 16', 2
4', 25', and three inner pipes 53, 54, 55 are provided astride between the projecting joint 52 and the first receiving joint 16'. The joint 52 is fixed to the outer tube 50 by a stop bolt 56, and when removed, first to third flow paths 57, 58, 59 are formed, and a fourth flow path 60 is formed between the joint 52 and the outer tube 50. It is formed. On the other hand, the first joint 16' is fixed by a fixing bolt 61, and similarly to the fourth flow path 60, the outer tube 5
0 and the outer joint 51, a fourth flow path (not shown with a reference numeral) is formed.

In this way, when the swivel device and the other pipe body are screwed together via the outer joint 11, as can be inferred from the example shown in FIG. is inserted into the the result,
The first fluid flowing out from the end of the first joint 16 is
It enters the first channel 57 from the inlet 62, passes through the inner tube 53, and reaches the channel of the first coupling 16'. The second fluid from the gap between the first and second joints 16 and 24 enters the second flow path 58 from the inlet 63 on the periphery,
passing through the inner tube 54 to the first and second couplings 16';
It passes through the gap of 24'. 2nd and 3rd joint 2
The third fluid from the gaps 4 and 25 enters the third flow path 59 from the peripheral inlet (not shown), passes through the inner pipe 59, and exits to the gaps between the second and third joints 24' and 25'. . The fourth fluid from the gap between the third joint 25 and the outer joint 11 passes through the fourth flow path 60 and passes through the outer pipe 5.
0 and the inner pipes 53, 54, 55,
It passes through the gap between the third joint 25' and the outer joint 51.

Subsequently, each fluid from this other tube is transferred to the fifth tube.
Proceed to the tip through each connection shown in the figure. A description of FIG. 5 will be omitted since it is obvious from the above description.

As described above, according to the present invention, when connecting four channel tubes, communication and connection of each channel can be achieved relatively easily.

It goes without saying that the present invention can be applied to any of the swivel device and the tube, the tubes to each other, and the tube and the tip device.

[Brief explanation of the drawing]

Figures 1 and 2 are longitudinal cross-sectional views of the swivel device, Figure 3 is a cross-sectional view taken along the - line, Figure 4 is a vertical cross-sectional view of a single tube, and Figure 5 is a vertical cross-section of the joint between the tubes. The top view and FIG. 6 are cross-sectional views taken along the - line. 9... Swivel inner pipe, 10, 11... Outer joint,
16, 16'...first coupling, 17...first flow path,
18...Second channel, 19...Third channel, 20...
Fourth channel, 24, 24'...second coupling, 25,
25'...Third joint, 50...Outer tube, 51...
Outer joint, 52...butt joint, 57...first flow path, 5
8...Second channel, 59...Third channel, 60...Fourth channel
flow path.

Claims (1)

[Scope of utility model registration request] The first, second, and a third joint, and a projecting joint that is fixed to the other pipe body and is internally housed in the connecting pipe portion, and that faces and is inserted into each of the joints, and the first joint has a joint on the joint side. First to fourth flow paths are formed in the joint, and first to fourth flow paths are formed on the joint side.
A flow path is formed, and the first flow path on the receiving joint side flows out from the opening at the end of the first joint, flows into the first flow path on the joint side from the opening at the end of the joint, and the first flow path on the receiving joint side Second
The flow path breaks through the peripheral wall of the first joint and connects the first and second joints.
It passes through the gap in the joint and flows into the second flow passage on the joint side through the opening in the circumference of the joint, and the third flow passage on the joint side breaks through the peripheral wall of the first joint and flows into the second and third joints. It passes through the gap and flows into the third flow passage on the joint side through the opening on the circumference of the joint, and the fourth flow passage on the receiving joint passes through the gap between the third joint and the connecting pipe and flows into the fourth flow passage on the joint side. 1. A connection device for a four-channel pipe body, characterized in that it communicates with a channel.