CN212718646U

CN212718646U - Throttle orifice plate for throttling pressure reducing device

Info

Publication number: CN212718646U
Application number: CN202021654613.4U
Authority: CN
Inventors: 席云波; 杨振蔚; 吴珍
Original assignee: Changzhou Lanchen Environmental Protection Equipment Co ltd
Current assignee: Changzhou Lanchen Environmental Protection Equipment Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-03-16
Anticipated expiration: 2030-08-10

Abstract

The utility model discloses a throttle orifice plate for throttling pressure relief device, including the orifice plate body, be equipped with the orifice on the orifice plate body, the fixed barrel that is equipped with in one side of orifice plate body, the barrel is kept away from along outer along outside arch of the one end of orifice plate body, and form annular first shoulder portion, first shoulder portion is equipped with a plurality of springs in the fixed one side of facing the orifice plate body, a plurality of sharp fretworks of surface equipartition of barrel, the axis parallel arrangement of sharp fretwork and barrel, the inside of barrel is equipped with the buffer board big such as with the internal diameter of barrel, buffer board and orifice plate body parallel arrangement, a plurality of through-holes of surface equipartition of buffer board, it is protruding that the side of buffer board is fixed to be equipped with a plurality of columns, the column is protruding to be located in the sharp fret. The utility model belongs to the pressure pipeline field, the advantage compared with the prior art lies in: long service life and stable operation.

Description

Throttle orifice plate for throttling pressure reducing device

Technical Field

The utility model relates to a pressure conduit technical field specifically indicates a throttle orifice plate for throttling pressure relief device.

Background

When the front-back pressure difference of the pipeline is large, the mode of increasing the throttle orifice plate is often adopted, and the principle is as follows: when a fluid flows in a pipeline, the pressure of the fluid is reduced and energy is lost due to the local resistance of the orifice plate, and the phenomenon is thermodynamically called throttling phenomenon. However, the flow velocity of the flow beam is the largest at the contracted flow section of the orifice plate, so that the flow beam impacts the orifice plate, and the orifice plate shakes after receiving water flow impact for a long time, so that leakage of a pipeline is caused.

The invention provides a throttling orifice plate for a temperature and pressure reducing device, which is named as 'a throttling orifice plate for a temperature and pressure reducing device' in China patent publication No. CN210687443U, published 2020, 06 and 05 days, and comprises a plate body, wherein a throttling table top and a buffer plate are arranged on the plate body, the buffer plate and the throttling table top are the same in shape and structure, and a throttling hole is arranged on the buffer plate; and a buffer spring is arranged between the buffer plate and the plate body. The design utilizes the spring between the buffer plate and the plate body to absorb the impact, thereby reducing the impact on the plate body. However, in the pipe, steam and gas dissolved in water are released from the stream, and small bubbles of steam and gas are formed, and hence cavitation and the like often occur. Therefore, the buffer plate connected by the spring can generate large shaking, and the impact on the pipe wall can be possibly caused; and the long-term straight-face stream impact of the spring can greatly reduce the service life of the spring, so that the service life of the whole device is not high.

There is a need for improvement.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a long service life, operate steady throttle orifice plate for throttling pressure relief device.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the throttling orifice plate for the throttling and pressure reducing device comprises an orifice plate body, wherein a throttling hole is formed in the orifice plate body, a barrel is fixedly arranged on one surface of the orifice plate body, the outer edge of one end, away from the orifice plate body, of the barrel protrudes outwards, an annular first shoulder part is formed, and a plurality of springs are fixedly arranged on one surface, facing the orifice plate body, of the first shoulder part; the utility model discloses a spring, including the barrel, the surface of barrel, the surface equipartition a plurality of straight line fretworks of barrel, straight line fretwork with the axis parallel arrangement of barrel, the inside of barrel be equipped with buffer board such as barrel internal diameter is big, the buffer board with orifice plate body parallel arrangement, a plurality of through-holes of surface equipartition of buffer board, the fixed a plurality of columns of being equipped with in side of buffer board are protruding, the protruding slip of column is located in the straight line fretwork, the column is protruding to be located the outer one end fixed connection of barrel the spring.

Further, the orifice plate body is installed at the pipeline connection position and clamped and sealed by a flange, the cylinder body is located inside the pipeline, and the first shoulder is connected with the inner wall of the pipeline in an airtight mode.

Further, the two ends of the columnar bulge are threaded ends and a cylinder with a smooth center, one end of the columnar bulge is in threaded connection with the side face of the buffer plate, the other end of the columnar bulge is provided with a limit nut, and the smooth section of the central part of the columnar bulge is in sliding connection with the straight line hollow.

Further, the outer edge of one end, close to the orifice plate body, of the cylinder protrudes outwards, and an annular second shoulder is formed, and the second shoulder and the orifice plate body are fixed through bolts.

Further, the spring is parallel to the axis of the cylinder and is in a compressed state.

After the structure is adopted, compared with the prior art, the utility model the advantage that has is: the utility model uses the telescopic buffer board to decelerate the gas or liquid flow beam, so that the gas or liquid flow beam does not directly impact the orifice plate body, thereby the orifice plate body is not easily affected by erosion, the vibration is reduced, and the operation is stable; the buffer plate moves in the cylinder body, so that the offset angle is small, and the buffer plate cannot impact the inner wall of the pipeline; and the spring is located the rear of first shoulder portion, can not directly hit by the pencil, therefore life is longer, even after the spring loses elasticity, the buffer board still can support through the column arch, and the whole durable degree of device is higher.

Drawings

Fig. 1 is a cross-sectional view of a throttle orifice plate for a throttle pressure reducing device according to the present invention.

Fig. 2 is a partial enlarged view of a portion a of a throttle orifice plate for a throttle pressure reducing device according to the present invention.

Fig. 3 is a partial enlarged view of a portion B of a throttle orifice plate for a throttle pressure reducing device according to the present invention.

As shown in the figure: 1. orifice plate body, 2, orifice, 3, barrel, 4, first shoulder portion, 5, spring, 6, straight line fretwork, 7, buffer board, 8, through-hole, 9, column arch, 10, pipeline, 11, flange, 12, stop nut, 13, second shoulder portion, 14, bolt.

Detailed Description

The following description is only for the preferred embodiment of the present invention, and the protection scope of the present invention is not limited thereby, the present invention will be further explained with reference to the drawings and the embodiments.

Examples, see FIGS. 1-3: the utility model discloses a throttle orifice plate for throttling pressure relief device, including orifice plate body 1, be equipped with orifice 2 on the orifice plate body 1, the fixed barrel 3 that is equipped with of one side of orifice plate body 1, the barrel 3 is kept away from the outside bulge along the outer edge of one end of orifice plate body 1 to form annular first shoulder portion 4, first shoulder portion 4 is fixed in the face of one side of orifice plate body 1 and is equipped with a plurality of springs 5, and first shoulder portion 4 can block the direct impact of stream to spring 5, thereby improves life; the surface of the barrel body 3 is uniformly provided with a plurality of linear hollows 6, the linear hollows 6 are arranged in parallel with the axis of the barrel body 3, a buffer plate 7 with the inner diameter equal to that of the barrel body 3 is arranged inside the barrel body 3, the buffer plate 7 is arranged in parallel with the pore plate body 1, a plurality of through holes 8 are uniformly distributed on the surface of the buffer plate 7, a plurality of columnar bulges 9 are fixedly arranged on the side surface of the buffer plate 7, the columnar bulges 9 are slidably arranged in the linear hollows 6, and the columnar bulges 9 and the linear hollows 6 play roles in supporting and guiding the buffer plate 7; one end of the columnar bulge 9, which is positioned outside the cylinder 3, is fixedly connected with the spring 5.

The orifice plate body 1 is installed at the joint of a pipeline 10 and clamped and sealed by a flange 11, the cylinder 3 is located inside the pipeline 10, the first shoulder is connected with the inner wall of the pipeline 10 in an airtight manner, the installation mode of the orifice plate body 1 belongs to the common installation mode of a throttling orifice plate, and the first shoulder can be sealed with the inner wall of the pipeline 10 through a sealing colloid or a sealing ring so as to block direct impact of a flow beam;

the columnar bulge 9 is a cylinder with two threaded ends at two ends and smooth center, one end of the columnar bulge 9 is in threaded connection with the side surface of the buffer plate 7, the other end of the columnar bulge is provided with a limit nut 12, the smooth section in the center of the columnar bulge 9 is in sliding connection with the linear hollow 6, the detachable columnar bulge 9 is arranged, on one hand, installation is convenient, and on the other hand, the position of the buffer plate 7 can be adjusted or the spring 5 can be fixed through the limit nut 12;

the outer edge of one end, close to the orifice plate body 1, of the cylinder 3 protrudes outwards, and an annular second shoulder part 13 is formed, and the second shoulder part 13 and the orifice plate body 1 are fixed through bolts 14, so that the device is convenient to disassemble, and parts are convenient to replace and install;

the springs 5 are parallel to the axis of the cylinder 3 and are in a compressed state, so that the stress of the springs 5 is more uniform.

When the orifice plate is used specifically, firstly, sealant is coated or a sealing ring is installed on the side surface of the first shoulder part 4, then the first shoulder part is pushed into the pipeline 10, the buffer plate 7 faces the moving direction of a flow beam, the orifice plate body 1 is attached to the flange 11, then the other surface of the orifice plate body 1 is attached to the flange 11, and the two flanges 11 are fixed and sealed through the stud bolts. During the operation of the pipeline 10, the gas or liquid flow beam passes through the pipeline 10, and when passing through the barrel 3, firstly strikes the buffer plate 7 and flows out through the through hole 8, the buffer plate 7 moves backwards in the barrel 3, the spring 5 is elongated, so that the impact force is absorbed, the impact of the flow beam is reduced, and finally the flow beam passes through the throttling hole 2 in the orifice plate body 1, and the throttling and pressure reduction are completed.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a restriction orifice plate for throttling pressure relief device, includes orifice plate body (1), be equipped with orifice (2) on orifice plate body (1), its characterized in that: the one side of orifice plate body (1) is fixed and is equipped with barrel (3), the barrel (3) is kept away from the one end of orifice plate body (1) along outer along outside protruding to form annular first shoulder portion (4), first shoulder portion (4) are fixed and are equipped with a plurality of springs (5) facing the one side of orifice plate body (1), a plurality of sharp fretworks (6) of surface equipartition of barrel (3), sharp fretwork (6) and the axis parallel arrangement of barrel (3), the inside of barrel (3) is equipped with buffer board (7) that equals big with barrel (3) internal diameter, buffer board (7) with orifice plate body (1) parallel arrangement, a plurality of through-holes (8) of surface equipartition of buffer board (7), the side of buffer board (7) is fixed and is equipped with a plurality of column arch (9), column arch (9) slide and locate in sharp fretwork (6), the columnar bulge (9) is positioned at one end outside the cylinder body (3) and is fixedly connected with the spring (5).

2. A throttle orifice plate for a throttle relief device as set forth in claim 1, wherein: the pore plate body (1) is arranged at the joint of a pipeline (10) and is clamped and sealed by a flange (11), the cylinder body (3) is positioned in the pipeline (10), and the first shoulder is hermetically connected with the inner wall of the pipeline (10).

3. A throttle orifice plate for a throttle relief device as set forth in claim 2, wherein: the column is protruding (9) and is the smooth cylinder of both ends for screw thread end and central authorities, the protruding (9) one end threaded connection of column the side of buffer board (7), and the other end is equipped with stop nut (12), the smooth section sliding connection of the protruding (9) central authorities of column sharp fretwork (6).

4. A throttle orifice plate for a throttle relief device as set forth in claim 3, wherein: the edge of one end, close to the orifice plate body (1), of the cylinder body (3) protrudes outwards, an annular second shoulder part (13) is formed, and the second shoulder part (13) and the orifice plate body (1) are fixed through bolts (14).

5. The orifice plate for a throttle relief device according to claim 4, wherein: the spring (5) is parallel to the axis of the cylinder (3) and is in a compressed state.