JPS624413A - Strainer - Google Patents

Abstract

PURPOSE:To obtain a device capable of prolonging the life of a strainer element having high quality and high performance, being superior in durability and inexpensiveness, and being suitable for mass production by utilizing a seamless T joint having as long as possible length of mother pipe or length of branch pipe as a shell of the strainer element. CONSTITUTION:A shell S of a strainer is constituted of a T joint formed by bonding a mother pipe part 1 and a straight pipe part 2 of a branch pipe. The straight pipe part 2 of a branch pipe is formed integrally of a straight pipe part having no seamed part and having a desired length as the branch part. Namely, the branch pipe part comprises a branch part formed integrally through a bent pipe part 3 by the bulging working capable of setting a position of head bulging of the branch pipe part optionally, or by the ball drawing working, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a strainer equipped with a strainer element that can remove and clean dust contained in liquid or gas.

[Prior art]

As shown in Fig. 5, a conventional strainer has a T-type pipe joint consisting of a main pipe part A and a branch pipe part B.
A supplementary pipe C is welded to the tip of each of the shells to form a straight pipe part, and the lengths of the main pipe part A and branch pipe part B are increased to a predetermined length to increase the filtration capacity. It is often used.

[Problem that the invention seeks to solve]

In this way, conventional methods in which supplementary pipes are welded to both ends of the main pipe and to the ends of branch pipes require complicated welding and work, resulting in poor productivity. Therefore, the flow within the flow path is likely to be hindered, flow resistance increases, turbulence occurs frequently, fluid pressure loss is large, and strainer elements are often damaged.

The present invention attempts to eliminate these conventional drawbacks, and aims to increase the length of the main pipe or branch as long as possible according to the purpose without welding the supplementary pipe to both ends of the main pipe or to the ends of the branch pipe. A strainer that uses a seamless T-shaped pipe joint with a long pipe length as a shell can accurately reduce flow resistance and prevent turbulence, and the conditions for fluid movement inside the shell can approach laminar flow. The objective is to provide a high-quality, high-performance, and durable strainer that extends the life of the element at an inexpensive price and in a form suitable for mass production.

[Means for solving problems]

The present invention provides a strainer that has a fluid inlet and an outlet, and has a strainer element built into a shell consisting of a branch pipe part and a main pipe part, and that adjusts the position and length of the beginning of the branch pipe part as required. A T-shaped pipe joint in which a seamless straight pipe part of the required length is integrally formed with a main pipe part having the required length on both sides of the branch pipe head as a branch pipe part by processing that can be set arbitrarily within a range. This strainer is characterized in that it has a shell, an inlet is formed at one end of the main pipe part, and an outlet is formed at the other end of the main pipe part or the end of the branch pipe part.

〔Example〕

To explain the present invention with reference to the examples shown in FIGS. 1 and 2, the shell S of the strainer is constituted by a T-shaped pipe joint in which a main pipe portion 1 and a branch pipe straight pipe portion 2 are integrally formed. This branch pipe straight pipe section 2
is a seamless straight pipe part of the required length that is integrally formed as a branch pipe part, that is, a bent pipe part 3 is formed by a bulge process or a ball drawing process that allows the position of the branch pipe part to be arbitrarily set. The fluid is connected to the main pipe part l by using a high-neck T-type pipe joint in which the branch pipe part is formed by a bulge process that can make the branch pipe part 2 longer. This is a straight strainer shell S where fluid flows from one end to the other.

Inside this shell S, a strainer element 5 is inserted through a sheet 4, such as a porous cylinder made of wire mesh or punched metal, glass wool, sintered metal, or cloth.

An element 5 made of other furnace material is installed together with a guide rod 6, a removable cover 7 is attached to the branch pipe section 2, and a nozzle flange 8 serving as a connection section is provided at both ends 1', 1' of the main pipe section 1. An inlet 11 and an outlet 12 are provided, and a gel flange 9 to which the cover 7 can be fixed is attached to the straight branch pipe portion 2.

In this case, a high-neck T-type pipe fitting with a length Δl longer than that of a standard-type T-type pipe fitting with a long branch pipe body, which has a long branch pipe body length, is used. By using it as a shell material, there is no need to weld a supplementary pipe to the end of the branch pipe, and the strainer is equivalent to or better than the conventional T-type strainer, which is a fluid straight type strainer in which a supplementary pipe is welded to the end of the branch pipe. can maintain overcapacity. in this case,
It is possible to omit the welding process and use a simple processing method to ensure performance equivalent to that of conventional products.

In addition, as shown in Figs. 3 and 4, the lengths l and jl2 of both ends 1', which are extended straight pipe parts on both sides of the main pipe part 1, are β, > +4! .

(FIG. 3) or '+=zz (FIG. 4), it is also possible to use a fluid 90° curved strainer with a long main pipe section that can be set to any desired position.

In each example, the length of the main pipe on both sides of the branch pipe of a conventional T-type strainer is determined by welding extension pipes to both ends of the main pipe of the material T-type pipe joint, or cutting it as long as necessary. The main pipe can be used as the main pipe and another pipe of the required length can be welded as the branch pipe. A seamless T-shaped strainer can be constructed by seamlessly forming branch pipes of required length into a T-shape.

That is, in the embodiment of the present invention, the built-in elements are arranged in accordance with the length of the main pipe part or the branch pipe part of the strainer.
Since it can be made arbitrarily long, depending on the diameter of the pipe to be connected, the type of fluid actually used and the flow conditions, and in the case of the fluid 90@curved strainer shown in Fig. 3, the length may be and jl.

It becomes possible to increase the effectiveness of the element by giving it an optimal value.

The performance comparison between the embodiment of the present invention (FIG. 1) and the conventional example (FIG. 5) was as follows.

The following margin indicates that a gas such as liquid or liquefied gas enters the shell from the inlet 11 and passes through the inside of the strainer element 5 in a state approaching an N flow to remove dust from the element 5.
The purified fluid is captured and discharged from the outlet 12 as a purified fluid.

If the element becomes clogged and no longer functions, clean it and reuse it, or replace it.

〔Effect of the invention〕

According to the present invention, the branching part that transitions from the main pipe part to the branch pipe part is formed seamlessly with a rounded shape by head processing, and there are no welded parts or corners in the branch pipe part, and fluid outflow pressure loss can be significantly reduced. Moreover, compared to conventional T-type strainers, which are manufactured by welding supplementary pipes to both ends of the main pipe and to the ends of branch pipes, the strainer can be manufactured at any position on the main pipe, regardless of the length of the main pipe, and at any position on the main pipe. In order to use a high-neck T-type pipe joint by bulge processing or a T-type pipe joint with a head-out of a branch pipe manufactured by ball drawing, which is manufactured by a process that allows for the beginning of branch pipes, only the connection part needs to be formed by welding. Therefore, it is possible to form a highly reliable weld between the strainer main body and the piping system by full drive welding, and by processing that allows the position and length of the branch pipe to be set arbitrarily, it is possible to form a highly reliable weld between the strainer body and the piping system. Since the set seamless T-shaped pipe joint is used, it is possible to mass-produce strainers with high quality, high performance, and excellent durability at a lower cost than when using conventional manufacturing methods.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of a seamless T-type strainer of fluid straight type using a Heinenck T-type pipe joint according to an embodiment of the present invention, FIG. 2 is a partially cutaway plan view thereof, and FIGS. 3 and 4 are FIG. 5 is a vertical cross-sectional view of a fluid 90'' curved seamless T-sheath strainer having a long main pipe part with an arbitrary length ratio on both sides of the branch pipe parts in another embodiment, and FIG. 5 is a vertical cross-sectional view of a conventional example. l... Main pipe part, 2... Straight branch pipe part, 3... Bent pipe part, 4... Sheet, 5... Strainer element, 6
...Guide Rondo, 7...Power Bar, 8,9...
Flange, 11... Inlet, 12... Outlet, S.
··shell.

Claims (1)

[Claims] 1. In a strainer that has a fluid inlet and an outlet and has a strainer element inside a shell consisting of a branch pipe part and a main pipe part, the position and length of the head of the branch pipe part Through processing, the length can be arbitrarily set within the necessary range, and a seamless straight pipe part of the required length is integrally formed as a branch pipe part with the main pipe part having the necessary length on both sides of the branch pipe head. A strainer characterized in that a shell is constructed of a T-shaped pipe joint, and an inlet is formed at one end of a main pipe part, and an outlet is formed at the other end of the main pipe part or the end of a branch pipe part. 2. The strainer according to claim 1, wherein the branch pipe part is a long straight pipe part formed without a joint and extending from the main pipe part, and is of a straight fluid type. 3. The strainer according to claim 1, wherein the branch pipe portion is formed to protrude into the long main pipe portion and has a fluid curved shape.