Flange joint

Abstract

To provide a flange joint enabling shortening of period and reduction of cost of the working for providing a flange joint on a reaction tank.SOLUTION: A flange joint 1 comprises: a disc-shaped plate member 2 in which a plurality of hole portions 21 are formed; a plurality of cylindrical piping portions 3 connected to the plurality of hole portions 21, respectively; and joint portions 4 provided at the front ends of the plurality of piping portions 3, respectively. Thus, the plurality of piping portions are connected to the plate member 2, and consequently the plurality of piping can be connected to the flange joint 1.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a flange joint. [Background technology]

[0002] 2. Description of the Related Art Conventionally, flange joints for connecting metal pipes have been known as joints for metal pipes (see, for example, Patent Document 1, etc.).

[0003] The flange joint of Patent Document 1 is composed of a sleeve portion having a straight cylindrical portion with an insertion hole into which a metal pipe is inserted, and a loose flange that is loosely fitted onto the sleeve portion. The metal pipe inserted into the insertion hole of the sleeve portion is joined with an adhesive. This makes it possible to shorten the construction period and reduce costs for pipe manufacturing and processing without using fire, as is the case with welding. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2009-174615 A Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, in reaction tanks for manufacturing pharmaceuticals or chemical substances, there is a demand for connecting multiple pipes to the reaction tank in order to introduce multiple materials into the reaction tank at the same time. However, with a flange joint as in Patent Document 1, only one pipe can be connected, so multiple flange joints must be provided in the reaction tank, which creates a problem in that it is difficult to shorten the processing time and reduce costs for providing the flange joints. [Means for solving the problem]

[0006] The flange joint of the present invention is characterized in that it comprises a disk-shaped plate member having a plurality of holes formed therein, a plurality of cylindrical piping sections connected to each of the plurality of holes, and a joint section provided at each of the tips of the plurality of piping sections.

[0007] In the present invention, a plurality of holes are formed in a disk-shaped plate member, and a plurality of piping sections are connected to the plurality of holes, respectively. Then, joint sections are provided at the ends of the piping sections connected to the holes. This allows, for example, a plurality of metal pipes for introducing a material to be connected to the joint sections provided at the ends of the plurality of piping sections, respectively. In other words, since a plurality of pipes can be connected to one flange joint, it is not necessary to provide a plurality of flange joints according to the number of pipes to be connected, and this allows for a reduction in the processing time and cost required for providing the flange joints.

[0008] In the flange joint of the present invention, it is preferable that inner surfaces of the plurality of pipe sections are glass-lined. In this configuration, since the inner surfaces of the plurality of piping sections are glass-lined, corrosion of the piping sections can be suppressed even in the case where a corrosive material is introduced.

[0009] In the flange joint of the present invention, it is preferable that the lengths of the plurality of pipe sections are equal. In this configuration, since the lengths of the plurality of pipe sections are equal, the connection points of the plurality of pipes can be close to each other when connecting the pipes to the joint section, and therefore the connection time can be shortened because the connection points of the respective pipes are close to each other.

[0010] In the flange joint of the present invention, it is preferable that the plurality of pipe sections are connected at an inclination relative to the plate member, and that the inclinations of the pipe sections relative to the plate member are equal. In this configuration, the multiple pipe sections are connected at an incline to the plate member, and the inclinations of the pipe sections to the plate member are equal, so that the connection points can be located close to each other while avoiding interference between the multiple pipes being connected. As a result, the connection points of each pipe are close to each other, so the connection work time can be shortened. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing an outline of a flange joint according to a first embodiment. [Diagram 2] FIG. 1 is a side view showing an outline of a flange joint according to a first embodiment. [Diagram 3] FIG. 6 is a perspective view showing an outline of a flange joint according to a second embodiment. [Figure 4] FIG. 6 is a side view showing an outline of a flange joint according to a second embodiment. [Diagram 5] FIG. 13 is a perspective view showing an outline of a flange joint according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] [First embodiment] A flange joint 1 according to a first embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view showing an outline of a flange joint 1 of this embodiment, and Fig. 2 is a side view showing an outline of the flange joint 1. The flange joint 1 of this embodiment is configured as a joint that can be connected to a flange joint provided in a reaction tank or the like for manufacturing pharmaceuticals or chemical substances. As shown in FIGS. 1 and 2, the flange joint 1 comprises a plate member 2, a piping portion 3, and a joint portion 4.

[0013] [Plate member 2] The plate member 2 is made of metal and formed in a disk shape. The plate member 2 has two holes 21 and six first bolt holes 22 formed therein. The two holes 21 are formed penetrating from the front surface 23 side to which the piping section 3 is connected to the back surface side opposite to the front surface 23. In this embodiment, the holes 21 are formed at an angle with respect to the front surface 23 so that the piping section 3 is inserted at an angle with respect to the front surface 23 of the plate member 2.

[0014] The six first bolt holes 22 are provided at equal intervals along the outer periphery of the plate member 2. A bolt is inserted into each of the first bolt holes 22 so that the plate member 2 can be fastened to a flange joint provided at a desired location for connection. That is, the plate member 2 of this embodiment is formed by drilling holes 21 in a metal plate flange.

[0015] [Piping section 3] The piping section 3 is made of metal and formed into a cylindrical shape. In this embodiment, two piping sections 3 are provided, and as described above, are inserted into the holes 21 formed in the plate member 2. The piping sections 3 are joined to the plate member 2 by welding on the rear surface side of the plate member 2. In this manner, in this embodiment, two piping sections 3 are connected to the plate member 2, so that two pipes can be connected to one flange joint 1. Therefore, there is no need to provide two flange joints in a reaction tank or the like depending on the number of pipes to be connected, and the processing time for providing the flange joints can be shortened and costs can be reduced.

[0016] In this embodiment, glass lining is applied to the inner surfaces of the two pipes 3 and a part of the back surface of the plate member 2. This makes it possible to prevent the pipes 3 and the back surface of the plate member 2 from corroding even if a corrosive liquid is passed through the pipes 3.

[0017] [Joint 4] The joint portion 4 is made of metal and formed into a circular ring shape. In this embodiment, two joint portions 4 are provided, and each is welded and joined to the tip of the pipe portion 3. More specifically, the pipe portion 3 is inserted into the inner periphery of the joint portion 4, and the joint portion 4 and the pipe portion 3 are welded and joined in a state in which the surface 41 of the joint portion 4 and the tip of the pipe portion 3 are substantially flush with each other. That is, the joint portion 4 is configured as a plug-in weld flange.

[0018] Furthermore, four second bolt holes 42 are formed in the joint part 4. The four second bolt holes 42 are provided at equal intervals along the outer periphery of the joint part 4. And, by inserting bolts into the second bolt holes 42, the joint part 4 can be fastened to a flange joint provided on the piping to be connected.

[0019] Here, in this embodiment, the two pipe sections 3 are connected at an incline with respect to the surface 23 of the plate member 2 as described above. The inclinations of the two pipe sections 3 with respect to the plate member 2 are configured to be equal. This makes it possible to prevent the joint sections 4 connected to the ends of the pipe sections 3 from interfering with each other. Furthermore, in this embodiment, the two pipe sections 3 are configured to have the same length. This makes it possible to prevent interference between the two joint sections 4, and also makes it possible to position the connection points of the pipes to be connected to the joint sections 4 close to each other, thereby shortening the time required for the connection work.

[0020] As described above, according to the flange joint 1 of the present embodiment, the following effects can be obtained. (1) In this embodiment, two holes 21 are formed in a disk-shaped plate member 2, and two piping sections 3 are connected to the two holes 21, respectively. A joint section 4 is provided at the tip of the piping section 3 connected to the hole section 21. This allows, for example, two metal pipes for introducing a material to be connected to the joint sections 4 provided at the tips of the two piping sections 3, respectively. In other words, since two pipes can be connected to one flange joint 1, it is not necessary to provide a reaction tank or the like with multiple flange joints according to the number of pipes to be connected, and this allows for a reduction in the processing time and cost required for providing the flange joints.

[0021] (2) In this embodiment, the inner surfaces of the two pipe sections 3 are glass-lined. This makes it possible to prevent the pipe sections 3 from corroding even in the case where a corrosive material is introduced.

[0022] (3) In this embodiment, since the lengths of the two pipe sections 3 are equal, the connection points can be located close to each other when connecting the two pipes to the joint section 4. As a result, since the connection points of the respective pipes are close to each other, the work time for connecting the pipes can be shortened.

[0023] (4) In this embodiment, the two piping sections 3 are connected at an incline to the plate member 2, and the inclinations of the piping sections 3 to the plate member 2 are equal, so that the connection points can be located close to each other while avoiding interference between the multiple pipes to be connected and the joint sections 4. As a result, the connection points of the respective pipes are close to each other, so that the time required for the connection work can be shortened.

[0024] [Second embodiment] Next, a second embodiment of the present invention will be described with reference to the drawings. The third embodiment differs from the first embodiment in that three pipe sections 3A are connected to a plate member 2A, and a union-type joint section 4A is joined to the tip of each of the pipe sections 3A.

[0025] FIG. 3 is a perspective view showing an outline of a flange joint 1A of this embodiment, and FIG. 2 is a side view showing an outline of the flange joint 1A. As shown in Figs. 3 and 4, the flange joint 1A comprises a plate member 2A, a piping section 3A, and a joint section 4A.

[0026] [Plate member 2A] The plate member 2A is made of metal and formed into a disk shape, similar to the plate member 2 of the first embodiment described above. The plate member 2A has three hole portions 21A and ten first bolt holes 22A formed therein. The three holes 21A penetrate from the front surface 23A side to which the piping section 3A is connected to the back surface side. In this embodiment, the holes 21A are formed so that the piping section 3 is inserted in a direction perpendicular to the front surface 23A of the plate member 2A.

[0027] The ten first bolt holes 22A are provided at equal intervals along the outer periphery of the plate member 2A. As in the first embodiment described above, a bolt is inserted into each of the first bolt holes 22A so that the plate member 2A can be fastened to a flange joint provided at a desired location for connection.

[0028] [Piping section 3A] The piping section 3A is made of metal and formed into a cylindrical shape, similar to the piping section 3 in the first embodiment described above. In this embodiment, three piping sections 3 are provided, and as described above, they are inserted into the holes 21A formed in the plate member 2A. The piping sections 3A are welded and joined to the plate member 2A on the back side of the plate member 2A.

[0029] In this embodiment, glass lining is applied to the inner surface of one of the three piping sections 3A and part of the rear surface of the plate member 2A. This makes it possible to reduce the number of glass lining locations when a corrosive liquid is introduced through one piping section 3A and a non-corrosive liquid is introduced through two piping sections 3A.

[0030] [Joint part 4A] The joint part 4A is made of metal and configured as a so-called loose flange type joint. Specifically, the joint part 4A and the pipe are connected by butting a flange part at the tip of the joint part 4A against a flange part of the pipe to be connected and sandwiching the flange parts from the outside with a loose flange (not shown). In this embodiment, three joint parts 4A are provided, and each is welded and joined to the tip of the pipe part 3A.

[0031] In this embodiment, the three pipe sections 3A are connected to the front surface 23A of the plate member 2A at right angles as described above. The lengths of the pipe sections 3A are different. This makes it possible to secure a space for connecting the pipes to the joint sections 4 connected to the ends of the pipe sections 3A.

[0032] As described above, according to the flange joint 1A of this embodiment, the following effects can be obtained. (5) In this embodiment, the three pipe sections 3A are connected to the front surface 23A of the plate member 2A so as to be perpendicular to each other, and the lengths of the respective pipe sections 3A are different. This makes it possible to secure a space for performing the work of connecting the pipes to the joint sections 4 connected to the ends of the respective pipe sections 3A.

[0033] [Variations] The present invention is not limited to the configurations of the respective embodiments described above, and modifications within the scope of the present invention that can achieve the object of the present invention are included in the present invention. Fig. 5 is a perspective view showing a modified flange joint 1B. As shown in Fig. 5, three pipe sections 3B may be connected to a plate member 2B at an angle. A joint section 4B configured as a socket weld flange may be joined to the ends of the three pipe sections 3B.

[0034] In each of the above-described embodiments, the inner surface of the piping section 3, 3A is glass-lined, but this is not limiting. The present invention also includes cases where the inner surface of the piping section 3, 3A or the back surface of the plate member 2, 2A is not glass-lined.

[0035] In each of the above-described embodiments, two or three piping sections 3, 3A are connected to the plate members 2, 2A, but the present invention is not limited to this. For example, four or more piping sections 3, 3A may be connected to the plate members 2, 2A.

[0036] In the above-described embodiments, the joints 4, 4A are configured as so-called plug-weld flanges or union-type joints, but are not limited thereto. For example, the joints 4, 4A may be configured as socket-type joints as long as they are configured to be able to connect the piping parts 3, 3A to the piping. [Explanation of symbols]

[0037] 1,1A,1B...Flange joint, 2,2A,2B...Plate member, 3,3A,3B...Piping section, 4,4A,4B...Joint section, 21,21A...Hole section, 22,22A...First bolt hole, 23,23A...Surface, 41...Surface, 42...Second bolt hole.

Claims

1. a disk-shaped plate member having a plurality of holes formed therein; A plurality of pipes each having a cylindrical shape and connected to each of the plurality of holes; a joint portion provided at each of the ends of the plurality of piping portions; A flange joint comprising:

2. 2. The flange joint according to claim 1, The inner surfaces of the plurality of piping sections are glass lined. A flange joint characterized in that

3. 3. The flange joint according to claim 2, The plurality of pipe sections have the same length. A flange joint characterized in that

4. 3. The flange joint according to claim 2, The plurality of piping sections are connected to the plate member at an angle, The inclination of the piping portion with respect to the plate member is uniform A flange joint characterized in that

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