TWI671111B - Filter and its installation method - Google Patents

Abstract

The invention discloses a filter, which comprises an upper casing and a lower casing, the upper casing is provided with a first connecting pipe, and the lower casing is provided with a second connecting pipe; The casing extends a peripheral tube, a joint portion above the peripheral tube, and a through hole in the middle; the joint portion is provided with a first groove, the first groove is provided with a first sealing ring; the second The connecting pipe is provided with a second groove, a second sealing ring is arranged on the second groove, and the second sealing ring is sleeved to compress the second groove with a compression rate of 5 to 10%. Therefore, the filtering provided by the present invention Device and its installation method, during the entire installation and removal process, because the friction resistance is reduced, it is more labor-saving and convenient for the operator.

Description

Filter and installation method thereof

The present invention relates to the field of filtration technology, and in particular, to a filter and an installation method thereof that are convenient to operate and save labor and convenience.

Filters, as a liquid separation device to control impurities in industrial processes, have been widely used in pharmaceutical, food, semiconductor and beverage industries. Generally, the filter is set in the fluid pipeline. After the fluid passes through the filter, the impurities will be trapped by the filter element inside the filter, thereby flowing out the clean fluid. Generally, the filter is set between the upper and lower pipe seats between the inlet and outlet pipes. When the internal filter element reaches the maximum life, the old filter needs to be removed and replaced with a new one. Therefore, the filter needs to be installed and disassembled at regular intervals during normal use. How to improve the filter structure to facilitate disassembly is a problem that needs to be solved by those skilled in the art.

The purpose of the present invention is to provide a filter, which enables the operator to facilitate the disassembly of the filter.

According to the purpose of the present invention, a filter is provided, which includes an upper case and a lower case, the upper case is provided with a first connection pipe, and the lower case is provided with a second connection pipe; the first connection pipe The utility model comprises a peripheral pipe extending from the upper casing, a joint part located above the outer pipe, and a through hole in the middle; the joint part is provided with a first groove, and the first groove is provided with a first sealing ring;该 第 The first The two connecting pipes are provided with a second groove, a second seal ring is arranged on the second groove, and the second seal ring is sleeved to compress the second groove with a compression rate of 5 to 10%. The first connecting pipe is hermetically connected to the upper pipe base, and the lower housing is hermetically connected to the lower pipe base through the second connecting pipe.

In one embodiment of the present invention, the first groove is a circular groove.

In an embodiment of the present invention, the upper casing and the lower casing are connected by welding.

In an embodiment of the present invention, the first seal ring is an O-shaped seal ring.

In one embodiment of the present invention, the peripheral tube is cylindrical.

In an embodiment of the present invention, an outer diameter of the joint portion is larger than an outer diameter of the outer peripheral tube.

A filter installation method includes at least one filter as described above, one end of the lower casing is inserted into the lower tube seat by the second connecting pipe to form a seal, and then the upper tube seat is moved downward to make the first A connecting tube presses the first sealing ring to achieve contact and compression, so that the upper casing and the upper tube seat form a seal, and then the entire tube seat and the filter and the lower tube seat form a seal as a whole. The seal does not have Generate frictional resistance and save effort.

As can be seen from the above technical solution, when the filter provided by the present invention is installed, the second connecting pipe is first vertically inserted into one end of the lower pipe seat to form a seal. At this time, the first connecting pipe is located below the other end of the upper pipe base, and then the upper pipe base is moved so that one end thereof is sleeved on the first connecting pipe. Due to the arrangement of the first sealing ring at the upper end of the first connecting pipe, the first sealing ring is compressed, thereby forming a tighter seal. In addition, when the first connecting pipe is in sleeve contact with one end of the upper pipe base, there is no friction, so it is easier to install than the traditional one. Similarly, when disassembling, moving one end of the upper tube base can complete the separation of the first connecting tube from the upper tube base, and no frictional force will be formed. In addition, the semi-circular design of the groove of the second sealing ring also reduces the compression rate and makes disassembly easier. Therefore, during the whole installation and disassembly process, since the friction resistance is reduced, it is more labor-saving and convenient for the operator.

1‧‧‧upper shell

2‧‧‧ lower case

11‧‧‧The first connection pipe

12‧‧‧The first sealing ring

111‧‧‧Peripheral tube

112‧‧‧Combination

113‧‧‧through hole

1121‧‧‧First groove

21‧‧‧Second connection pipe

211‧‧‧Second groove

22‧‧‧Second sealing ring

3‧‧‧ Upper tube holder

31‧‧‧first fluid channel

32‧‧‧contact surface

4‧‧‧ Lower tube holder

41‧‧‧tube groove

42‧‧‧Second fluid channel

Figure 1: Schematic diagram of the filter of the present invention.

Figure 2: Schematic diagram of the filter installation of the present invention.

Fig. 3: An enlarged sectional view of a second connecting pipe of the filter of the present invention.

In order for your examiner to understand the technical features, contents, and advantages of the present invention and the effects that can be achieved, the present invention is described in detail with the accompanying drawings in the form of embodiments, and the diagrams used therein, Its main purpose is only for the purpose of illustration and supplementary description. It may not be the actual proportion and precise configuration after the implementation of the invention. Therefore, the attached drawings should not be interpreted and limited to the scope of rights of the present invention in actual implementation. , He Xianxian.

First, please refer to FIG. 1 and FIG. 2, which are schematic diagrams of the filter of the present invention. The filter of the present invention includes at least: an upper casing 1 and a lower casing 2, wherein the upper casing 1 is provided with an end at one end. The first connecting pipe 11 includes a peripheral pipe 111 extending from one end of the upper casing 1, a joint portion 112 above the outer pipe 111 and a through hole 113 in the middle, and the joint portion 112 A first groove 1121 is provided thereon, and the first groove 1121 is provided with a first sealing ring 12; the lower case 2, the upper case 1 is covered with the lower case 2, and is connected by thermal fusion welding Fixedly connected, a filter element (not shown in the figure) is provided inside the lower case 2 of the filter. A second connecting pipe 21 is provided at one end of the lower casing 2. The second connecting pipe 21 is provided with a second groove 211, and the second groove 211 is semicircular. A second sealing ring 22 is sleeved to press the second groove 211 and has a compression ratio of 5-10%.

Above the first connecting pipe 11 is an upper pipe holder 3 of a liquid inlet pipe. A first fluid passage 31 is provided in the upper pipe seat 3, and the first fluid passage 31 communicates with the system pipe; the second connecting pipe Below 21 is a lower pipe seat 4 of a liquid outlet pipe. The lower pipe seat 4 is provided with a pipe groove 41 and a second fluid passage 42. The pipe groove 41 communicates with the second fluid passage 42 and the pipe groove. 41 may form a seal with the second connecting pipe 21. If the first connection pipe 11 is a liquid inlet pipe, the second connection pipe 21 is a liquid discharge pipe. During filtration, a fluid containing impurities enters through the first connection pipe 11 and passes through a filter element inside the filter to trap impurities. The purified fluid finally flows out of the second connection pipe 21 into the pipe, and vice versa.

Furthermore, the first connecting pipe 11 includes a peripheral pipe 111. The peripheral tube 111 is formed by extending from the upper casing 1, a joint portion 112 located above the peripheral tube 111, and a through hole 113. The outer peripheral tube 111 is cylindrical, and the outer diameter of the joint portion 112 is larger than the outer diameter of the outer peripheral tube 111, so that the first connecting tube 11 and the upper tube base 3 form a larger contact surface 32. In other words, the upper tube base 3 The contact surface 32 is in contact with the joint portion 112. As shown in FIG. 2, the contact surface 32 is perpendicular to the axial direction of the filter, and the contact surface 32 includes the first fluid passage 31 communicating with the through hole 113. The combining portion 112 is provided with a first groove 1121. The first groove 1121 is provided with a first sealing ring 12, and the upper tube seat 3 is moved in the axial direction of the filter to press the contact surface 32 ( FIG. 2 right) or release (left of FIG. 2) the first sealing ring 12. The first groove 1121 is a circular groove, and the first seal ring 12 is an O-ring. The second connecting pipe 21 is a cylindrical pipe. The first connecting pipe 11 is provided with a second groove 211 near the pipe end, and a second sealing ring 22 is provided on the second groove 211. Wherein, the second groove 211 is a semi-circular structure (as shown in FIG. 3), and the compression ratio of the second seal ring 22 is 5-10%, which is 15-20 compared with the traditional right-angle groove. % Is much smaller, so installation is more labor-saving.

As shown in FIG. 2, during installation, the second connecting pipe 21 is first sleeved vertically into the lower pipe holder 4, that is, the lower pipe holder 4 has the second connecting pipe 21 to be removed along the axial direction of the filter. The second groove 22 on the second connecting pipe 21 forms a seal with the pipe groove 41, in other words, the second seal ring 22 abuts against the inner wall of the pipe groove 41 By seal. At this time, the first connecting pipe 11 is located on the upper side. Below the tube base 3, the upper tube base 3 is moved to fit into the first connecting tube 11. Due to the arrangement of the first sealing ring 12 at the upper end of the first connecting pipe 11, the first sealing ring 12 is compressed, thereby forming a seal. When the first connecting pipe 11 is in contact with one end of the upper pipe base 3, there is no friction, so it is easier to install than the traditional one. Similarly, when disassembling, moving one end of the upper pipe base 3 can complete the separation of the first connecting pipe 11 from the upper pipe base 3, and no friction is formed. Therefore, during the whole installation and disassembly process, since the friction resistance is reduced, it is more labor-saving and convenient for the operator.

The terms "first" and "second" in the present invention are distinguished by description, and have no other special meanings. The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but shall conform to the widest scope consistent with the principles and inventive features disclosed herein.

Claims (7)

A filter comprises at least: an upper casing (1), one end of which is provided with a first connecting tube (11), the first connecting tube (11) includes an outer peripheral tube extending from one end of the upper casing (1) (111), and a joint portion (112) and a through hole (113) above the peripheral tube (111), and the joint portion (112) is provided with a first groove (1121), and the first A groove (1121) is provided with a first sealing ring (12); a lower casing (2), the upper casing (1) covers the lower casing (2), and one end of the lower casing (2) A second connecting pipe (21) is provided, the second connecting pipe (21) is provided with a second groove (211), the second groove (211) is semi-circular, and the second groove (211) ) Is provided with a second sealing ring (22), and the second sealing ring (22) is sleeved to press the second groove (211), and the compression ratio is 5-10%; the lower tube seat (4) has a supply The second connecting pipe (21) is a tube groove (41) disassembled and assembled along the axial direction of the filter. The second connecting pipe (21) is vertically sleeved into the lower pipe seat (4). The sealing ring (22) is abutted against the inner wall of the pipe groove (41), so that the second connecting pipe (21) is tightly connected to the lower pipe seat (4); an upper pipe seat ( 3) having a contact surface (32) in contact with the joint portion (112), the contact surface (32) being perpendicular to the axial direction of the filter, and the contact surface (32) having the through hole (113) ) Communicating with a first fluid channel (31), the upper tube seat (3) moves along the axial direction of the filter to make the contact surface (32) hold or release the first sealing ring (12), so that The first connecting pipe (11) is hermetically connected to the upper pipe base (3). The filter according to item 1 of the patent application scope, wherein the first groove (1121) is a circular groove. The filter according to item 1 of the scope of patent application, wherein the upper casing (1) and the lower casing (2) are connected by welding. The filter according to item 1 of the scope of patent application, wherein the first sealing ring (12) and the second sealing ring (22) are O-rings. The filter according to item 1 of the scope of patent application, wherein the peripheral tube (111) is cylindrical. The filter according to item 1 of the scope of patent application, wherein the outer diameter of the joint portion (112) is larger than the outer diameter of the outer peripheral tube (111). A filter installation method, comprising at least one filter according to any one of claims 1 to 6 of the scope of patent application, one end of the lower casing (2) is inserted into the second connecting pipe (21) by The lower tube seat (4) forms a seal, and then the upper tube seat (3) is moved downward, so that the first connecting pipe (11) is pressed against the first sealing ring (12) to make contact compression, so that the The upper casing (1) and the upper tube base (3) form a seal, and further, a seal is formed between the upper tube base (3) and the filter and the lower tube base (4) as a whole.