CN219035945U

CN219035945U - Throttling device suitable for small-diameter waterway pipeline on high-pressure water path

Info

Publication number: CN219035945U
Application number: CN202223406126.8U
Authority: CN
Inventors: 王利华; 郑荣静; 杨昌慧; 彭伟; 牛贺
Original assignee: Dongchen Intelligent Technology Co ltd
Current assignee: Dongchen Intelligent Technology Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-05-16
Anticipated expiration: 2032-12-20

Abstract

The utility model relates to a large-pressure-drop short-distance throttling device suitable for a small-diameter waterway pipeline on a high-pressure water path. The existing throttling device is long in installation distance, and cannot meet the actual installation requirement on site when the installation distance is limited, particularly on site reconstruction projects. The utility model comprises a device main body, wherein a fluid inlet and a fluid outlet are respectively arranged at two ends of the device main body, and the device is characterized in that the opening of an inner cavity of the device main body is larger than the fluid inlet and the fluid outlet, and a plurality of throttling rings are arranged in the inner cavity of the device main body side by side. According to the utility model, the apertures of the fluid inlet, the fluid outlet and the inner cavity of the throttling device are optimally designed, so that the pressure reducing effect can be effectively achieved. The installation distance between the throttling rings is effectively reduced, the length of the whole throttling device is further shortened, the installation space of the throttling device is reduced, and the throttling device is suitable for various requirements in the actual installation process.

Description

Throttling device suitable for small-diameter waterway pipeline on high-pressure water path

Technical Field

The utility model belongs to the technical field of throttling devices, and particularly relates to a large-pressure-drop short-distance throttling device suitable for small-diameter waterway pipelines on a high-pressure water path.

Background

In the pipeline for transporting the fluid, the pressure level of the valve on the pipeline is continuously improved due to the fact that the water pressure of the used high-pressure waterway is continuously improved, and the actual cost is continuously improved and wasted. To avoid this, a restriction is used to provide a large pressure drop to reduce the line pressure to reduce the pressure rating of the line valve.

The existing throttling device is long in installation distance, and cannot meet the actual installation requirement on site when the installation distance is limited, particularly on site reconstruction projects. The existing throttling device is low in working condition pressure and pressure drop, and is not suitable for being installed on a high-pressure water path.

Application number 2020231955081 discloses a water throttling device, which comprises a throttling sleeve, wherein the throttling sleeve is provided with a pipeline and an installation cavity; the throttle ring is embedded on the inner wall of the mounting cavity; the throttle pipe sleeve is inserted into the mounting cavity and is abutted with the throttle ring; wherein, the throttle ring is provided with at least one; the throttle sleeve is fixedly connected with the throttle sleeve.

The technical scheme of the utility model discloses a technology for installing a plurality of throttle rings in the inner cavity of the throttle device, which can play a role in buffering to a certain extent, so that the structure is compact and water leakage is not easy to occur. However, the diameters of the water inlet, the water outlet and the inner cavity of the throttling device are consistent, and the structure can be impacted strongly on a high-pressure waterway, so that a good depressurization effect is difficult to achieve.

Disclosure of Invention

Aiming at the problems, the utility model provides a throttling device suitable for small-diameter waterway pipelines on a high-pressure water path, which can realize adjustable fluid depressurization effect and is suitable for installation requirements of various environmental spaces.

The utility model adopts the following technical scheme: the throttling device suitable for the small-diameter waterway pipeline on the high-pressure water path comprises a device main body, wherein the two ends of the device main body are respectively provided with a fluid inlet and a fluid outlet.

Preferably, the throttle ring is provided with an eccentric small hole, and the aperture of the water inlet of the eccentric small hole is smaller than the aperture of the water outlet.

Preferably, the eccentric small holes of two adjacent throttle rings are distributed in a staggered way.

Preferably, two adjacent throttling rings are distributed in a way of rotating 120-180 degrees.

Preferably, the device body is formed by butt joint of an inlet transition pipe joint and an outlet transition pipe joint, the aperture of a fluid inlet of the inlet transition pipe joint is smaller than the aperture of an inner water outlet, and the aperture of the inner water inlet of the outlet transition pipe joint is the same as the aperture of the inner water outlet of the inlet transition pipe joint.

Preferably, the fluid inlet of the inlet transition pipe joint is welded and fixed with the end with the same pipe diameter as the upstream pipe, the water outlet of the inlet transition pipe joint is welded and fixed with the end with the same hole diameter as the outlet transition pipe joint, and the fluid outlet of the outlet transition pipe joint is welded and fixed with the end with the same pipe diameter as the downstream pipe.

Preferably, adjacent throttle loops are welded and fixed.

Preferably, the outer wall of the throttling ring and the inner wall of the device main body are fixed by welding.

The beneficial effects of the utility model are as follows:

1. the caliber of the fluid inlet, the caliber of the fluid outlet and the caliber of the inner cavity of the throttling device are optimally designed, so that the pressure reduction effect can be effectively achieved, and the high-pressure waterway is adapted to installation and use.

2. The structure of the throttling rings is improved, so that the throttling rings have a better depressurization effect, the installation layout is optimized, the installation distance between the throttling rings is effectively reduced, the length of the whole throttling device is further shortened, the installation required space of the throttling device is reduced, and the throttling device is suitable for various requirements in the actual installation process.

3. The plurality of throttle rings that the throttle device inner chamber piles up the setting can select the installation quantity as required to adjust the depressurization effect.

Drawings

Fig. 1 is a schematic view of the overall structure of the present utility model.

In the figure: 1. the device comprises a device body 2, an inlet transition pipe joint 3, an outlet transition pipe joint 4, a throttle ring 5, an inner cavity 6, a fluid inlet 7, a water inlet 8, an eccentric small hole 9, a water outlet 10 and a fluid outlet.

Detailed Description

The utility model will be further illustrated with reference to specific examples.

The throttling device suitable for small-diameter waterway pipelines on a high-pressure water path as shown in fig. 1 comprises a device main body 1, wherein a fluid inlet 6 and a fluid outlet 10 are respectively arranged at two ends of the device main body 1, an opening of an inner cavity 5 of the device main body is larger than the fluid inlet 6 and the fluid outlet 10, and a plurality of throttling rings 4 are arranged in the inner cavity of the device main body 1 side by side.

The caliber of the fluid inlet, the caliber of the fluid outlet and the caliber of the inner cavity of the throttling device are optimally designed, so that the pressure reduction effect can be effectively achieved, and the installation of a high-pressure waterway is adapted. A plurality of throttling rings are arranged in the cavity, so that multistage depressurization is performed on the fluid, and the effect of large pressure drop on the fluid is realized. Meanwhile, the number of throttling turns can be increased or decreased according to the actual use conditions on site, so that the controllable adjustment of the pressure drop effect is realized.

In one embodiment, the throttle ring 4 is provided with an eccentric small hole 8, and the aperture of a water inlet 7 of the eccentric small hole 8 is smaller than the aperture of a water outlet 9. The structure of the throttle ring is improved, so that the throttle ring has a better depressurization effect, the blocking phenomenon caused by expansion of fluid due to pressure reduction is avoided, and the fluid can stably and rapidly pass through the throttle hole.

In one embodiment, the eccentric orifices 8 of adjacent two chokes 4 are staggered. The installation layout of the throttling rings is optimized, the installation distance between the throttling rings is effectively reduced, the length of the whole throttling device is further shortened, and the space required by installation of the throttling device is reduced.

Specifically, the two adjacent throttling rings are rotated by 120-180 degrees to be distributed, so that eccentric small holes can form dislocation, Z-shaped flow is shown when fluid passes through the throttling device, and cavitation phenomenon under the condition of large pressure drop and short distance is effectively overcome (the phenomenon that throttling holes different from the conventional throttling device are horizontally distributed and cavitation working conditions are easy to generate).

In one embodiment, the device main body 1 is formed by butt joint of an inlet transition pipe joint 2 and an outlet transition pipe joint 3, the aperture of a fluid inlet 6 of the inlet transition pipe joint 2 is smaller than the inner aperture of a water outlet, and the inner aperture of a water inlet of the outlet transition pipe joint 3 is the same as the inner aperture of the water outlet of the inlet transition pipe joint 1.

The inlet transition pipe joint and the outlet transition pipe joint are processed by adopting an integral forging piece, the inlet and outlet apertures of the inlet transition pipe joint and the outlet transition pipe joint can be customized according to the upstream pipeline and the downstream pipeline, and when the apertures of the upstream pipeline and the downstream pipeline are different, the matching with the apertures of the upstream pipeline and the downstream pipeline (which is different from the condition that the conventional throttling device has only one pipe diameter) can be still realized.

Specifically, the fluid inlet of the inlet transition pipe joint 1 is welded and fixed with the end with the same pipe diameter as the upstream pipe, the water outlet of the inlet transition pipe joint 1 is welded and fixed with the end with the same aperture as the outlet transition pipe joint 3, and the fluid outlet 10 of the outlet transition pipe joint 3 is welded and fixed with the end with the same pipe diameter as the downstream pipe.

Specifically, the adjacent throttle rings 4 are fixed by welding, and the outer wall of each throttle ring 4 is fixed by welding with the inner wall of the main body of the device.

The working process of the utility model is as follows: when the throttling device works, water sequentially passes through the inlet transition pipe joint 2, the throttling ring 4 and the outlet transition pipe joint 3. When fluid passes through the inlet transition pipe joint, the inlet caliber is smaller than the outlet caliber, so that a certain pressure reducing effect can be achieved, and after that, the fluid passes through a plurality of throttling rings, and the improved eccentric small holes can also achieve the pressure reducing effect on the fluid. The fluid flows in Z shape when passing through a plurality of throttle rings, thereby effectively overcoming cavitation phenomenon under the condition of large pressure drop and short distance. Finally the fluid is discharged from the fluid outlet 10 of the outlet transition pipe joint 3.

It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present utility model, and such equivalents are intended to fall within the scope of the claims appended hereto.

Claims

1. The throttling device suitable for the small-diameter waterway pipeline on the high-pressure water path comprises a device main body (1), wherein a fluid inlet (6) and a fluid outlet (10) are respectively arranged at two ends of the device main body, and the throttling device is characterized in that an opening of an inner cavity (5) of the device main body is larger than the fluid inlet (6) and the fluid outlet (10), and a plurality of throttling rings (4) are arranged in the inner cavity of the device main body (1) side by side.

2. The throttling device according to claim 1, characterized in that the throttling ring (4) is provided with an eccentric small hole (8), and the aperture of the water inlet (7) of the eccentric small hole (8) is smaller than the aperture of the water outlet (9).

3. A throttle device according to claim 1, characterized in that the eccentric apertures (8) of adjacent two throttle rings (4) are staggered.

4. A throttle device according to claim 1, characterized in that adjacent two throttle rings (4) are arranged rotated 120-180 °.

5. The throttling device according to claim 1, characterized in that the device main body (1) is formed by butt joint of an inlet transition pipe joint (2) and an outlet transition pipe joint (3), the aperture of a fluid inlet (6) of the inlet transition pipe joint (2) is smaller than the inner aperture of a water outlet, and the inner aperture of a water inlet of the outlet transition pipe joint (3) is the same as the inner aperture of the water outlet of the inlet transition pipe joint (2).

6. The throttling device according to claim 5, wherein the fluid inlet of the inlet transition pipe joint (2) is welded and fixed to the same end of the pipe diameter of the upstream pipe, the water outlet of the inlet transition pipe joint (2) is welded and fixed to the same end of the bore diameter of the outlet transition pipe joint (3), and the fluid outlet (10) of the outlet transition pipe joint (3) is welded and fixed to the same end of the pipe diameter of the downstream pipe.

7. A throttle device according to claim 1, characterized in that adjacent throttle loops (4) are fixed by welding.

8. A throttle device according to claim 1, characterized in that the outer wall of the throttle ring (4) is welded to the inner wall of the device body.