JPH0581595U - Nozzle device for pressure vessel - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a nozzle device for a pressure vessel. [Structure] An outer pipe 4 which is airtightly penetrated and fixed to a pressure vessel 1 with a seal member 7 interposed therebetween, and a seal member 5a which is inserted into the outer pipe 4 and has both ends thereof.
5b to seal and partition the first flow path 13,
An inner pipe 6 for partitioning the second flow path 14 inside,
The first external pipe 19 is joined to one end of the outer pipe 4,
The first internal pipe 21 is joined to the other end, the second external pipe 15 is joined to one end of the inner pipe 6, and the second internal pipe 17 is joined to the other end. [Effects] Two kinds of fluids can be supplied by the nozzle device provided in one through hole formed in the pressure vessel, and the flow for the fluid can be supplied without requiring the perforation work and the annealing work in the pressure vessel. You can increase the number of paths.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a nozzle device for a pressure vessel.

[0002]

[Prior art and its problems]

 A nozzle device for communicating the inside and outside is attached to a pressure vessel such as a petroleum refining reaction tower. This nozzle device is for supplying or discharging a fluid, for example, quench gas.

However, in such a conventional pressure vessel nozzle device, since a single flow path is formed in one through hole of the pressure vessel, a plurality of pressure vessel types can be used. There is a technical problem that it is necessary to form a considerable number of through holes in order to supply the above fluid. For example, when adding a type of catalyst after installing the pressure vessel, a new through hole is formed in the pressure vessel and a nozzle device is attached. Annealing is required when forming such through holes.

[0004]

[Means for Solving the Problems]

 The present invention has been made in view of such a conventional technical problem, and its constitution is an outer pipe fixed to a pressure vessel through a sealing material in an airtight manner, and the outer pipe. Is inserted into the inside of the outer pipe, and a space between the both ends of the outer pipe is sealed by a sealing material to define a first flow passage between the outer pipe and the second pipe. An inner pipe, wherein one end of the outer pipe is joined to a first outer pipe communicating with the first flow passage, and the other end of the outer pipe is communicated with the first flow passage. 1 inner pipe is joined, and a second outer pipe communicating with the second flow passage is joined to one end of the inner pipe, and the other end of the inner pipe is connected to the second flow passage. It is a nozzle device for a pressure vessel, characterized in that a second internal pipe that communicates is joined.

[0005]

According to this nozzle device of the pressure vessel, when the first flow path is used, a fluid, for example, a quench gas is supplied from the first external pipe and is supplied from the first internal pipe through the first flow path. Guide it to the required location in the pressure vessel 1. When the second flow path is used, a fluid, for example, another quench gas, is supplied from the second external pipe, and is introduced from the second internal pipe to a necessary place in the pressure vessel through the second flow line. Thus, two kinds of fluids can be supplied or discharged by the nozzle device attached to one through hole of the pressure vessel.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 4 show an embodiment of the present invention. In the figure, reference numeral 1 indicates a pressure vessel such as a petroleum refining reaction tower, and a nozzle device 2 is detachably attached to a through hole 1b of an end plate 1a thereof. The through hole 1b is specifically formed in the nozzle 1c which is welded and fixed to the end plate 1a. 1d is an overlay layer made of stainless steel.

The nozzle device 2 has an outer pipe 4 that penetrates the end plate 1 a of the pressure vessel in a gas-tight manner through a sealing material 7 made of a gasket, and a space between the outer pipe 4 and both ends of the outer pipe 4. The inner pipe 6 sealed by the sealing materials 5a and 5b, respectively.

The outer pipe 4 is formed by welding the main body 4A, the penetrating portion 4B, and the packing holding portion 4C sequentially from one end side with their central axes aligned with each other, and welding them. The main body 4A has outward flange portions 4a and 4b located at an intermediate portion and one end portion in the central axis direction of the outer pipe 4, respectively, and the penetrating portion 4B allows the through hole 1b of the pressure vessel to be loosely inserted. It has a small diameter so that it penetrates. The packing holding portion 4C has an annular recess 4j formed on the inner peripheral surface and a plurality of stud bolts 4d erected on the other end surface.

Further, a flat surface portion 4g having a through hole 4f in the central portion is formed in the middle portion of the outward flange portions 4a and 4b of the outer pipe 4 as shown in FIGS. 1, 2 and 3. Further, a heat insulating material 4h is attached to the outer periphery of the penetrating portion 4B on the other end side of the outward flange portion 4a of the intermediate portion, and the other end of the penetrating portion 4B has a nut-shaped member 4i having a female screw. Are fixed so that the inside and outside of the outer pipe 4 communicate with each other. On the other hand, around the through hole 1b of the end plate 1a, a seal groove 1c 'for accommodating the seal material 7 is formed and a plurality of stud bolts 8 are erected.

Such an outer pipe 4 is inserted into the through hole 1b of the end plate 1a from the other end side, and the outward flange portion 4a of the intermediate portion is brought into close contact with the end plate 1a via the sealing material 7, and the implant bolt is inserted. A nut 9 is screwed onto the plate 8 and is fixed airtightly. Then, both outward flanges 4a and 4b of the main body 4A are located outside the pressure container 1, and the packing holding portion 4C is located inside the pressure container 1.

On the other hand, the inner pipe 6 has a pair of outward flange portions 6a and 6b at one end in the central axis direction as shown in FIG. 2, and at the other end as shown in FIG. 6c is formed. The inner pipe 6 is inserted from one end side of the outer pipe 4, and the outer flange 4 b of one end of the outer pipe 4 is fitted to the outer flange 4 b of one end of the outer pipe 4 via a sealing material 5 b made of a gasket. The portion 6a is brought into close contact, and is tightened with bolts and nuts (not shown) to fix it airtightly. The other end of the inner pipe 6 protruding from the outer pipe 4 is provided with a seal member 5a made of a plurality of gland packings in an annular recess 4j of the outer pipe 4, and a packing presser passed through each stud 4d. 11 is tightened with each nut 12, and the sealing material 5a is compressed with the packing presser 11, and the other end of the outer pipe 4 is airtightly assembled. The nozzle device 2 is thus attached to the pressure vessel 1.

Thus, the second flow path 13 is defined inside the inner pipe 6, and one end between the inner pipe 6 and the outer pipe 4 is hermetically sealed by the seal material 5b. The first flow path 14 whose other end is hermetically sealed by the sealing material 5a is defined. Since one sealing member 5a is composed of the gland packing, relative movement between the outer pipe 4 and the inner pipe 6 in the direction of the central axis is allowed, whereby the difference in thermal expansion is absorbed.

The nozzle device 2 having the above configuration is used as follows. In the first flow path 14, the flange portion 19a of the first external pipe 19 is bolted to the flat portion 4g having the through hole 4f of the outer pipe 4 with the sealing material 18 made of a gasket interposed therebetween as shown in FIG. -The nut 20 is fixed and airtightly joined, and the first internal pipe 21 is joined by screwing to the nut-shaped member 4i having a female thread. The first external pipe 19 is located outside the pressure vessel 1, and the first internal pipe 21 is located inside the pressure vessel 1.

Further, in the second flow path 13, the second outer pipe 15 is aligned with the central axis of the other outward flange portion 6 b of the inner pipe 6, and the seal material 22 is interposed so that the bolts and nuts (not shown) are provided. And the second inner pipe 17 is joined to the other end of the inner pipe 6 via the threaded joint 16 with the central axis aligned with each other. To be done. The second external pipe 15 is located outside the pressure container 1, and the second internal pipe 17 is located inside the pressure container 1.

When the second flow path 13 is used, a fluid such as a quench gas, a catalyst or the like is supplied from the second external pipe 15 and is guided to a necessary place in the pressure vessel 1 from the second internal pipe 17. When the first flow path 14 is used, a fluid such as another quench gas, a catalyst or the like is supplied from the first external pipe 19 and is guided to a necessary place in the pressure vessel 1 from the first internal pipe 21. . Thus, two kinds of fluids can be circulated through the single through hole 1b of the end plate 1a.

[0016]

[Effect of the device]

 As can be understood from the above description, according to the nozzle device for a pressure vessel of the present invention, two types of fluid can be circulated by the nozzle device provided in one through hole formed in the pressure vessel. Therefore, it is possible to cope with an increase in the flow passages for fluids due to the design change, without requiring the work of piercing the pressure vessel and the work of annealing.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the other end side of a nozzle device for a pressure vessel according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing one end side of the same.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a diagram showing a half portion of a flat portion of the outer pipe.

[Explanation of symbols]

1: pressure vessel, 1a: end plate, 1b: through hole, 1c: pipe stand,
2: Nozzle device, 5a, 5b, 7: Seal material, 4: Outer pipe, 6: Inner pipe, 13: Second flow path, 14: First
Flow path, 15: second external pipe, 17: second internal pipe, 1
9: 1st external piping, 21: 1st internal piping.

Claims (1)

[Scope of utility model registration request] 1. An outer pipe, which is fixed to a pressure vessel by interposing a sealing material in an airtight manner through a sealing material, and an outer pipe which is inserted into the outer pipe and has both end portions of the outer pipe. An inner pipe that seals to define a first flow path with the outer pipe and a second flow path inside is provided, and one end of the outer pipe communicates with the first flow path. To the other end of the outer pipe, the first internal pipe communicating with the first flow path is joined, and to the one end of the inner pipe, the second flow A nozzle device for a pressure vessel, characterized in that a second external pipe communicating with the passage is joined, and a second internal pipe communicating with the second flow passage is joined to the other end of the inner pipe.