Novel sealing connection structure for threaded inlet and outlet of pulse dust removal valve

Abstract

The utility model relates to the technical field of sealed connection of an inlet and an outlet of a pulse dust removal valve, and particularly discloses a novel sealed connection structure of a threaded inlet and an outlet of the pulse dust removal valve, which comprises the pulse dust removal valve, a double-threaded joint, a welding connecting pipe and a flange, one end of the double-thread connector pipe is in threaded connection with the pulse dust removal valve, the other end of the double-thread connector pipe is in threaded connection with the internal thread sleeve, and a through hole is formed in one end of the internal thread sleeve. According to the technical scheme, the welding connecting pipe and the internal thread sleeve are installed in a pressing and sealing mode through the fact that the nut is matched with the sealing ring, and meanwhile when the internal thread sleeve and the double-thread connector are screwed, one end of the double-thread connector can enable the welding connecting pipe and the internal thread sleeve to be installed in a pressing and sealing mode. The pulse dust removal valve, the double-thread connector and the welding connecting pipe are connected in a sealed and communicated mode, follow-up rotation of other thread sealing structures cannot be caused, and the problem that a connecting bolt hole of a flange cannot be aligned in a midspan mode is solved.

Description

Technical Field

[0001] This utility model relates to the field of sealing connection technology for the inlet and outlet of a pulse dust collector valve, specifically a novel sealing connection structure for the threaded inlet and outlet of a pulse dust collector valve. Background Technology

[0002] Currently, the inlet and outlet of pulse dust collector valves smaller than three inches are usually connected by pipe threads, typically using threaded pipe fittings with Teflon tape for sealing. This conventional sealing method is unreliable. If the pipeline is flanged, the flange will rotate with the threaded pipe fitting, causing the flange bolt holes to misalign. This results in misalignment of the bolt holes during flange connection, and the rotation of the threaded pipe fitting reduces the sealing effect. Therefore, we propose a new sealing connection structure for the threaded inlet and outlet of pulse dust collector valves. Utility Model Content

[0003] The purpose of this utility model is to provide a novel sealing connection structure for the threaded inlet and outlet of a pulse dust collector valve, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel sealing connection structure for the threaded inlet and outlet of a pulse dust collector valve, comprising a pulse dust collector valve, a double-threaded connector, a welded connecting pipe, and a flange. The double-threaded connector includes a double-threaded connector tube and a hexagonal block integrally formed in the middle of the outer circumference of the double-threaded connector tube. One end of the double-threaded connector tube is threadedly connected to the pulse dust collector valve, and the other end is threadedly connected to an internal threaded sleeve. One end of the internal threaded sleeve has a through hole. The welded connecting pipe includes an external threaded tube and a convex ring integrally formed in one end of the external threaded tube. The external threaded tube passes through the through hole, and the convex ring is engaged inside the internal threaded sleeve and close to the end of the through hole. One end of the double-threaded connector tube is pressed against the end face of the convex ring, and the end of the welded connecting pipe opposite to the convex ring is welded to the flange.

[0005] Furthermore, a sealing ring is embedded at the connection end between the external threaded pipe and the convex ring. When the convex ring is engaged inside the internal threaded sleeve, the sealing ring is in close contact with the inside of the internal threaded sleeve and the end closest to the through hole.

[0006] Furthermore, the external threaded pipe is connected to a nut, which, when tightened, comes into close contact with one end of the internal threaded sleeve.

[0007] Furthermore, the opening at one end of the internal threaded sleeve is 10mm to 20mm larger than the diameter of the through hole at the other end, and the through hole is consistent with the maximum diameter of the external threaded pipe.

[0008] Furthermore, the opening diameter of the convex ring is consistent with that of one end of the internal threaded sleeve.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] The technical solution of this application connects the pulse dust collector valve and the internal threaded sleeve through a double threaded joint. The welded pipe is installed by pressing and sealing the internal threaded sleeve with a nut and sealing ring. At the same time, when the internal threaded sleeve is tightened with the double threaded joint, one end of the double threaded joint can also press and seal the welded pipe with the internal threaded sleeve. Under the double pressing action, the pulse dust collector valve, the double threaded joint and the welded pipe are sealed and connected. Furthermore, when the flange is aligned, the welded pipe can be slightly rotated without causing other threaded sealing structures to rotate, thus avoiding the problem of the flange connection bolt holes not being aligned. Attached Figure Description

[0011] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0012] Figure 1 A cross-sectional view of a novel sealing connection structure for the threaded inlet and outlet of a pulse dust collector valve;

[0013] Figure 2 An exploded view of a novel sealing connection structure for the threaded inlet and outlet of a pulse dust collector valve;

[0014] Figure 3 This is a schematic diagram of the welded nozzle structure.

[0015] In the diagram: 1. Pulse dust collector valve; 2. Double threaded connector; 201. Double threaded connector pipe; 202. Hexagonal block; 3. Internal threaded sleeve; 301. Through hole; 4. Sealing ring; 5. Nut; 6. Welded connector; 601. External threaded pipe; 602. Raised ring; 7. Flange. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Example 1, such as Figure 1-3As shown, this utility model provides a technical solution: a novel sealing connection structure for the threaded inlet and outlet of a pulse dust collector valve, including a pulse dust collector valve 1, a double-threaded connector 2, a welded pipe 6, and a flange 7. The double-threaded connector 2 includes a double-threaded connector tube 201 and a hexagonal block 202 integrally formed in the middle of the outer circumference of the double-threaded connector tube 201. One end of the double-threaded connector tube 201 is threadedly connected to the pulse dust collector valve 1, and the other end is threadedly connected to an internal threaded sleeve 3. One end of the internal threaded sleeve 3 has a through hole 301. The welded pipe 6 includes an external threaded tube 601 and a convex ring 602 integrally formed in one end of the external threaded tube 601. The external threaded tube 601 passes through the through hole 301. The convex ring 602 is snapped into the interior of the internal threaded sleeve 3 and close to one end of the through hole 301. One end of the double-threaded connector tube 201 is pressed against the end face of the convex ring 602. The end of the welded pipe 6 opposite to the convex ring 602 is welded to the flange 7.

[0018] When using this device, assemble it according to the following steps: One end of the double-threaded connector 2 is threaded into the pulse dust collector valve 1; the hexagonal block 202 is used to rotate the double-threaded connector 2; then, the external threaded pipe 601 is pre-fitted with a sealing ring 4 (e.g., Figure 3 As shown), the external threaded pipe 601 passes through the through hole 301 of the internal threaded sleeve 3, and the internal threaded sleeve 3 is screwed tightly to the other end of the double threaded connector 2. When the internal threaded sleeve 3 and the double threaded connector 2 are tightened, one end of the double threaded connector 2 presses against the convex ring 602, so that the convex ring 602, the sealing ring 4 and the inner wall of the internal threaded sleeve 3 are in close contact. The nut 5 is threadedly engaged with the external threaded pipe 601. The nut 5 is tightened to fit against the outside of the internal threaded sleeve 3, which also makes the convex ring 602, the sealing ring 4 and the inner wall of the internal threaded sleeve 3 fit tightly. Under the double pressing action, the pulse dust removal valve 1, the double threaded connector 2 and the welded pipe 6 are sealed and connected. The welded pipe 6 is welded to the flange 7. When the flange 7 is aligned, the welded pipe 6 needs to be slightly rotated. Since the welded pipe 6 is not threaded, rotating the welded pipe 6 will not cause other threaded sealing structures to rotate accordingly, thus avoiding the problem of the flange connection bolt holes not being aligned.

[0019] In the preferred technical solution, a sealing ring 4 is embedded at the connection end of the external threaded pipe 601 and the convex ring 602. When the convex ring 602 is engaged inside the internal threaded sleeve 3, the sealing ring 4 is in close contact with the inside of the internal threaded sleeve 3 and the end close to the through hole 301. A nut 5 is threadedly connected to the external threaded pipe 601. When the nut 5 is tightened, it is in close contact with one end of the internal threaded sleeve 3. The convex ring 602 presses against the inside of the internal threaded sleeve 3, thereby improving the sealing performance between the welded pipe 6 and the internal threaded sleeve 3.

[0020] In the preferred technical solution, the opening at one end of the internal threaded sleeve 3 is 10mm to 20mm larger than the diameter of the through hole 301 at the other end. The through hole 301 is consistent with the maximum diameter of the external threaded pipe 601. The convex ring 602 is consistent with the opening diameter at one end of the internal threaded sleeve 3, so that the internal threaded sleeve 3 can engage with the convex ring 602 and pass through the external threaded pipe 601.

[0021] In summary: the welded pipe is installed by pressing and sealing it with a nut, a sealing ring, and an internal threaded sleeve. Simultaneously, when the internal threaded sleeve is tightened with the double-threaded connector, one end of the double-threaded connector also ensures a tight seal between the welded pipe and the internal threaded sleeve. This double tightening action ensures a sealed connection between the pulse dust collector valve, the double-threaded connector, and the welded pipe. Furthermore, when the flange is aligned, the welded pipe can rotate slightly without causing other threaded sealing structures to rotate, thus avoiding the problem of misalignment of the flange's bolt holes.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel sealing connection structure for the threaded inlet and outlet of a pulse dust collector valve, characterized in that: The system includes a pulse dust collector valve (1), a double-threaded connector (2), a welded pipe (6), and a flange (7). The double-threaded connector (2) includes a double-threaded connector tube (201) and a hexagonal block (202) integrally formed in the middle of the outer circumference of the double-threaded connector tube (201). One end of the double-threaded connector tube (201) is threadedly connected to the pulse dust collector valve (1), and the other end is threadedly connected to an internally threaded sleeve (3). One end of the internally threaded sleeve (3) has a through hole (301). The welded pipe... The connector (6) includes an externally threaded tube (601) and a convex ring (602) integrally formed at one end of the externally threaded tube (601). The externally threaded tube (601) passes through the through hole (301). The convex ring (602) is snapped into the inside of the internally threaded sleeve (3) and close to one end of the through hole (301). One end of the double-threaded connector tube (201) is pressed against the end face of the convex ring (602). The welded connector (6) is welded to the flange (7) at the end opposite to the convex ring (602).

2. The novel sealing connection structure for the threaded inlet and outlet of a pulse dust collector valve according to claim 1, characterized in that: A sealing ring (4) is embedded at the connection end of the external threaded pipe (601) and the convex ring (602). When the convex ring (602) is engaged inside the internal threaded sleeve (3), the sealing ring (4) is in close contact with the inside of the internal threaded sleeve (3) and the end close to the through hole (301).

3. The novel sealing connection structure for the threaded inlet and outlet of a pulse dust collector valve according to claim 1, characterized in that: The external threaded tube (601) is connected to a nut (5) by an external thread. When the nut (5) is tightened, it is in close contact with one end of the internal threaded sleeve (3).

4. The novel sealing connection structure for the threaded inlet and outlet of a pulse dust collector valve according to claim 1, characterized in that: The opening at one end of the internal threaded sleeve (3) is 10mm to 20mm larger than the diameter of the through hole (301) at the other end, and the through hole (301) is consistent with the maximum diameter of the external threaded tube (601).

5. A novel sealing connection structure for the threaded inlet and outlet of a pulse dust collector valve according to claim 4, characterized in that: The diameter of the opening at one end of the convex ring (602) is the same as that of the internal threaded sleeve (3).

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