CN210920529U

CN210920529U - Flow-adjustable throttling orifice plate

Info

Publication number: CN210920529U
Application number: CN201922071970.1U
Authority: CN
Inventors: 王晓东
Original assignee: Nantong Xuri Marine Machinery Co ltd
Current assignee: Nantong Xuri Marine Machinery Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-07-03
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a but flow regulation's orifice plate, including throttle plate, throttle perforation and handle, table wall sliding connection has the regulating plate in the throttle plate, the corresponding regulation hole of perforating with the throttle has been seted up to the table wall in the regulating plate. The utility model discloses in, drive the regulating plate through the carriage release lever and remove, the regulating plate takes place relative rotation with the throttle plate under the cooperation of the ring groove on the fixture block of outer table wall and the throttle plate, make the crisscross cooperation of throttle perforation on regulation hole on the regulating plate and the throttle plate, lead to throttle perforation and regulation hole intercommunication area to change, the locating lug on the carriage release lever can combine with the constant head tank in the arc spout under the effect of spring this moment, realize the fixed of regulating plate through fixed carriage release lever, thereby the flow control of throttle orifice plate has been realized, the result of use of throttle orifice plate has been guaranteed.

Description

Flow-adjustable throttling orifice plate

Technical Field

The utility model relates to a orifice plate technical field especially relates to a but flow regulation's orifice plate.

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. The mode is simpler than that of adopting a regulating valve, but the mode must be properly selected, otherwise, the liquid is easy to generate cavitation, and the safe operation of the pipeline is influenced.

At present, the existing orifice plate still has some defects when in use, firstly, the opening area of the existing orifice plate is fixed, so that the limited flow is a fixed value, and the orifice plate cannot adjust the flow according to the requirement, thereby increasing the limitation of the orifice plate; secondly, because the existing orifice plate mostly adopts a single-layer plate structure, the whole impact resistance of the orifice plate is weaker, so that the fatigue resistance of the orifice plate is reduced when the orifice plate receives water pressure impact for a long time, the orifice plate is easy to deform, and the service life of the orifice plate is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, the invention provides an orifice plate capable of adjusting the flow.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an adjustable flow's orifice plate, includes throttle plate, throttle perforation and handle, table wall sliding connection has the regulating plate in the throttle plate, the regulation hole corresponding with the throttle perforation is seted up to the table wall in the regulating plate, the equal fixed mounting in regulating plate horizontal end both sides has the fixture block, the fixture block passes through ring groove and throttle plate sliding connection, terminal surface fixed mounting has the positioning seat before the throttle plate, terminal surface fixed mounting has the carriage release lever before the regulating plate, just the carriage release lever passes through arc spout and positioning seat sliding connection, table wall has the location lug through spring elastic connection in the carriage release lever, the location lug passes through the constant head tank and is connected with the positioning seat buckle.

As a further description of the above technical solution:

the cross section of the throttle plate is of a square structure, and the outer wall of the vertical end of the adjusting plate is tightly attached to the throttle plate.

As a further description of the above technical solution:

and the outer surface wall of the vertical end of the spring is tightly attached to the inner surface wall of the movable rod.

As a further description of the above technical solution:

the two sides of the horizontal end of the throttle plate are fixedly connected with flange plates, and the vertical ends of the flange plates are horizontally provided with bolts.

As a further description of the above technical solution:

the constant head tank is provided with the multiunit, and multiunit constant head tank is the arc type and distributes.

As a further description of the above technical solution:

and a corrosion-resistant coating is coated on one side of the throttle plate, which is far away from the adjusting plate.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, drive the regulating plate through the carriage release lever and remove, the regulating plate takes place relative rotation with the throttle plate under the cooperation of the ring groove on the fixture block of outer table wall and the throttle plate, make the crisscross cooperation of throttle perforation on regulation hole on the regulating plate and the throttle plate, lead to throttle perforation and regulation hole intercommunication area to change, the locating lug on the carriage release lever can combine with the constant head tank in the arc spout under the effect of spring this moment, realize the fixed of regulating plate through fixed carriage release lever, thereby the flow control of throttle orifice plate has been realized, the result of use of throttle orifice plate has been guaranteed.

2. The utility model discloses in, be the structure cooperation of square font through the throttle plate cross-section and go up the regulating plate for the whole class three layer construction that is of throttle orifice plate, thereby increased the anti impact force of throttle orifice plate, guaranteed the anti fatigue degree of throttle orifice plate when receiving the long-term impact of water pressure, thereby improved the life of throttle orifice plate.

Drawings

Fig. 1 shows a schematic structural diagram provided according to an embodiment of the present invention;

fig. 2 shows a schematic structural view of a throttle plate according to an embodiment of the present invention;

fig. 3 shows the structural schematic diagram of the limiting plate provided according to the embodiment of the present invention.

Illustration of the drawings:

1. a throttle plate; 2. an adjusting plate; 3. positioning seats; 4. a travel bar; 5. a flange plate; 6. a bolt; 7. a handle; 8. positioning a groove; 9. an arc-shaped chute; 10. an annular neck; 11. throttling and perforating; 12. a spring; 13. positioning the bump; 14. a clamping block; 15. and adjusting the hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an adjustable flow's orifice plate, including throttle plate 1, throttle perforation 11 and handle 7, table wall sliding connection has regulating plate 2 in the throttle plate 1, the regulation hole 15 corresponding with throttle perforation 11 is seted up to the table wall in the regulating plate 2, the equal fixed mounting in regulating plate 2 level end both sides has fixture block 14, fixture block 14 passes through ring groove 10 and throttle plate 1 sliding connection, terminal surface fixed mounting has positioning seat 3 before the throttle plate 1, terminal surface fixed mounting has carriage release lever 4 before the regulating plate 2, and carriage release lever 4 passes through

arc spout

9 and 3 sliding connection of positioning seat, table wall has location lug 13 through spring 12 elastic connection in the carriage release lever 4, location lug 13 passes through constant head tank 8 and is connected with 3 buckles of positioning seat.

Specifically, as shown in fig. 1, the cross section of the throttle plate 1 is of a square structure, the outer wall of the vertical end of the adjusting plate 2 is tightly attached to the throttle plate 1, the cross section of the throttle plate 1 is of the square structure, and the adjusting plate 2 is matched with the cross section of the throttle plate 1, so that the whole throttle plate is of a three-layer structure, the impact resistance of the throttle plate is increased, the fatigue resistance of the throttle plate under long-term impact of water pressure is ensured, and the service life of the throttle plate is prolonged.

Specifically, as shown in fig. 3, the outer surface wall of the vertical end of the spring 12 is tightly attached to the inner surface wall of the moving rod 4, so that the spring 12 is prevented from deviating, and the working stability of the spring 12 is ensured.

Specifically, as shown in fig. 1, flanges 5 are fixedly connected to both sides of the horizontal end of the throttle plate 1, and bolts 6 are horizontally arranged at the vertical ends of the flanges 5 to be fixedly connected with external pipelines.

Specifically, as shown in fig. 2, the positioning grooves 8 are provided with a plurality of groups, and the plurality of groups of positioning grooves 8 are distributed in an arc shape to fix a plurality of positions of the moving rod 4.

Specifically, as shown in fig. 1, the throttle plate 1 is coated with a corrosion-resistant coating on the side away from the adjusting plate 2 to improve the corrosion resistance of the throttle plate 1.

The working principle is as follows: when the throttling orifice plate is used, the regulating plate 2 is driven to move by the moving rod 4, the regulating plate 2 rotates relative to the throttle plate 1 under the matching of a clamping block 14 on the outer surface wall and an annular clamping groove 10 on the throttle plate 1, so that a regulating hole 15 on the regulating plate 2 is in staggered fit with a throttling through hole 11 on the throttle plate 1, the communication area of the throttling through hole 11 and the regulating hole 15 is changed, at the moment, a positioning lug 13 on the moving rod 4 is combined with a positioning groove 8 in an arc-shaped sliding groove 9 under the action of a spring 12, the regulating plate 2 is fixed by fixing the moving rod 4, the flow regulation of the throttling orifice plate is realized, the use effect of the throttling orifice plate is ensured, the throttling orifice plate is integrally in a similar three-layer structure by matching the regulating plate 2 with the cross section of the throttle plate 1 in a square-shaped structure, the impact resistance of the throttling orifice plate is increased, and the fatigue resistance of, thereby improving the service life of the orifice plate.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The throttle orifice plate capable of adjusting the flow comprises a throttle plate (1), a throttle perforation (11) and a handle (7), and is characterized in that an adjusting plate (2) is connected to the inner surface wall of the throttle plate (1) in a sliding manner, an adjusting hole (15) corresponding to the throttle perforation (11) is formed in the inner surface wall of the adjusting plate (2), clamping blocks (14) are fixedly mounted on two sides of the horizontal end of the adjusting plate (2), the clamping blocks (14) are connected with the throttle plate (1) in a sliding manner through annular clamping grooves (10), a positioning seat (3) is fixedly mounted on the front end face of the throttle plate (1), a moving rod (4) is fixedly mounted on the front end face of the adjusting plate (2), the moving rod (4) is connected with the positioning seat (3) in a sliding manner through an arc-shaped sliding groove (9), and a positioning lug (13) is elastically connected to the inner surface wall of, the positioning bump (13) is connected with the positioning seat (3) in a buckling mode through the positioning groove (8).

2. The orifice plate according to claim 1, characterized in that the cross section of the orifice plate (1) is in a square structure, and the outer surface wall of the vertical end of the regulating plate (2) is tightly attached to the orifice plate (1).

3. An adjustable flow orifice plate according to claim 1 in which the outer surface wall of the vertical end of the spring (12) is in close contact with the inner surface wall of the travel bar (4).

4. The orifice plate capable of adjusting the flow rate according to claim 1, wherein a flange (5) is fixedly connected to each of two sides of the horizontal end of the orifice plate (1), and a bolt (6) is horizontally arranged at the vertical end of the flange (5).

5. A flow-adjustable orifice plate according to claim 1, characterized in that said positioning slots (8) are provided in a plurality of groups, and the plurality of groups of positioning slots (8) are distributed in an arc.

6. An adjustable flow orifice plate according to claim 2, characterised in that the side of the orifice plate (1) remote from the regulating plate (2) is coated with a corrosion-resistant coating.