Flow limiting device applied to coal chemical industry

Abstract

The utility model relates to the technical field of flow-limiting orifice plates, and discloses a flow-limiting device applied to coal chemical industry, which comprises a hollow circular plate, a plurality of circulation holes are formed in the left side of the hollow circular plate, a motor is fixedly connected to the middle of the left side of the hollow circular plate, and a protective cover is fixedly connected to the left side of the hollow circular plate. The output end of the motor penetrates through the hollow circular plate and is fixedly connected with a rotating disc, a plurality of arc-shaped grooves are formed in the left side of the rotating disc, a fixed disc is fixedly connected to the right side of the inner wall of the hollow circular plate, a plurality of U-shaped plates are fixedly connected to the left side of the fixed disc, and moving strips are slidably connected to the inner walls of the U-shaped plates. According to the device, the motor is started to enable the rotating disc to rotate, the rotating disc pushes the limiting columns and the moving strips to move through the arc-shaped grooves, meanwhile, the arc-shaped baffles move outwards, and therefore the circulation holes are shielded, and the sizes of the circulation holes can be adjusted according to needs.

Description

Technical Field

[0001] The utility model relates to the technical field of flow limiting orifice plates, in particular to a flow limiting device applied to coal chemical industry. Background Art

[0002] In the field of coal chemical industry, precise control of fluid flow is of great significance to production safety, stability and efficient operation. Traditional flow control equipment such as regulating valves and throttle valves have complex structures, high costs and are prone to leakage, blockage and wear. As a simple and reliable flow control device, the flow limiting orifice plate is increasingly widely used in coal chemical industry. It controls the flow by setting an orifice plate with a specific aperture in the pipeline and utilizing the pressure drop generated when the fluid flows through. It has the advantages of simple structure, low cost and easy installation.

[0003] After searching, the Chinese patent announcement number is: CN207621534U, which discloses a flow limiting orifice plate for coal chemical industry, including a liquid inlet pipe, a flow limiting orifice plate and a liquid outlet pipe, a limited flow hole is set at the center of the flow limiting orifice plate body, and fixed holes are respectively set at the upper and lower ends of the flow limiting orifice plate body, rubber sealing gaskets are respectively set on both sides of the flow limiting orifice plate body, an inlet flow meter is set on the liquid inlet pipe, and a liquid outlet flow meter is set on the liquid outlet pipe, the flow limiting orifice plate and the rubber sealing gasket are connected in an integrated manner by hot melt and hot bonding, a limited flow hole is set at the center of the flow limiting orifice plate body, and the flow limiting hole is set as a frustum-type through-hole structure, the fluid in the pipeline is restricted by the flow limiting hole, and the frustum-type flow limiting hole enhances the flow limiting effect, and the flow rate of the fluid is recorded by the liquid inlet flow meter and the liquid outlet flow meter, so as to facilitate observation and real-time monitoring of the flow limiting effect of the flow limiting orifice plate, thereby ensuring the use effect of the flow limiting orifice plate, but in actual use, due to the fixed aperture, it cannot be adjusted as needed, and thus the flow control cannot be well performed. Utility Model Content

[0004] In order to make up for the above deficiencies, the present invention provides a current limiting device applied to coal chemical industry, aiming to improve the problem in the prior art that the aperture is fixed and cannot be adjusted as needed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a flow limiting device applied to coal chemical industry, comprising a hollow circular plate, a plurality of flow holes are opened on the left side of the hollow circular plate, a motor is fixedly connected to the middle portion of the left side of the hollow circular plate, a protective cover is fixedly connected to the left side of the hollow circular plate, the output end of the motor passes through the hollow circular plate and is fixedly connected to a rotating disk, a plurality of arc grooves are opened on the left side of the rotating disk, a fixed circular plate is fixedly connected to the right side of the inner wall of the hollow circular plate, a plurality of U-shaped plates are fixedly connected to the left side of the fixed disk, a moving bar is slidably connected to the inner wall of the U-shaped plate, a limiting column is fixedly connected to the left side of the moving bar, the limiting column is slidably connected to the arc groove, an arc baffle is fixedly connected to the outer side of the moving bar, a circular pipe is fixedly connected to the outer side of the hollow circular plate, and a sealing connection mechanism is provided on the left and right sides of the circular pipe, and the sealing connection mechanism is used to connect with the pipe.

[0006] Through the above technical solution: when the size of the hole needs to be adjusted, the rotating disk can be driven to rotate by starting the motor, and then the limiting column can be driven to move through the rotating arc groove, and then the moving bar can be driven to move, and at the same time the arc baffle can be driven to move outward. At this time, the arc baffle will gradually block the flow hole, thereby adjusting the flow size of the hole.

[0007] As a further description of the above technical solution:

[0008] The sealing connection mechanism includes two flange 1s, and the two flange 1s are respectively fixedly connected to the left and right sides of the circular pipe. Connecting pipes are provided on the left and right sides of the circular pipe. The adjacent sides of the two connecting pipes are fixedly connected to flange 2. A plurality of connecting screws are provided on the outer side of flange 2. Flange 1 and flange 2 are fixedly connected by the connecting screws. The upper and lower sides of the outer wall of flange 1 are provided with locking half rings, and the front and rear sides of the locking half ring are provided with fixing screws, and the outer wall of the fixing screw passes through the locking half ring.

[0009] Through the above technical solution: flange one and flange two are connected by connecting screws, and at the same time the outer locking half ring wraps flange one and flange two, and then they are connected by fixing screws, so that the circular pipe is connected above the connecting pipe, thereby making the connection more stable and reducing the possibility of gaps in the connection.

[0010] As a further description of the above technical solution:

[0011] A pressure sensor is fixedly connected to the top of the outer wall of the circular pipe, and a temperature sensor is fixedly connected to the top side of the front portion of the outer wall of the circular pipe.

[0012] Through the above technical solution: the pressure inside the circular pipe can be easily detected by the pressure sensor, and the temperature inside the circular pipe can be detected by the temperature sensor.

[0013] As a further description of the above technical solution:

[0014] A fixing plate is fixedly connected to the left side of the front portion of the circular pipe, and an information card plate is fixedly connected to the front side of the fixing plate.

[0015] Through the above technical solution: basic information can be recorded through the information card board.

[0016] As a further description of the above technical solution:

[0017] An observation window is provided on the right side of the front portion of the circular pipe, and a sealing frame is fixedly connected to the outer side of the observation window.

[0018] Through the above technical solution: the internal situation of the circular pipe can be easily observed through the observation window.

[0019] As a further description of the above technical solution:

[0020] A U-shaped column is fixedly connected to the bottom of the circular pipe, and a handle is fixedly connected to the outer side of the U-shaped column.

[0021] Through the above technical solution: the U-shaped column and the handle can facilitate taking during installation.

[0022] As a further description of the above technical solution:

[0023] A conical buffer block is fixedly connected to the middle portion of the right side of the hollow circular plate, and a buffer baffle is fixedly connected to the right side of the inner wall of the circular pipe.

[0024] Through the above technical solution: the conical buffer block can reduce the obstruction to the arc-shaped baffle, and the buffer baffle can prevent the liquid from directly impacting the arc-shaped baffle.

[0025] As a further description of the above technical solution:

[0026] Sealing rings are provided on the left and right sides of the circular pipe, and a circular baffle is fixedly connected to the left side of the inner wall of the circular pipe.

[0027] Through the above technical solution: the sealing ring can prevent the liquid from flowing out, and the annular baffle can limit the position of the hollow circular plate.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the present invention, by starting the motor, the rotating disk begins to rotate, and the arc groove on the rotating disk closely cooperates with the limit post and the movable bar. As the rotating disk rotates, the limit post and the movable bar are pushed and move along a predetermined path. At the same time, the arc baffle is also driven by the rotating disk to move outward. As the arc baffle moves outward, it gradually covers and blocks the flow hole, and the size of the flow hole can be adjusted as needed.

[0030] 2. In the present invention, flange 1 and flange 2 are connected by connecting screws, and the outer locking half ring wraps the two and is further connected by fixing screws, thereby ensuring a stable connection between the circular pipe and the connecting pipe, reducing the risk of gaps, making the pipe connection more stable, and preventing leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a three-dimensional diagram of a current limiting device applied to coal chemical industry proposed by the present utility model;

[0032] Figure 2 This is a front view of a current limiting device applied to coal chemical industry proposed by the utility model;

[0033] Figure 3 This is a cross-sectional view of a circular pipe of a flow limiting device applied to coal chemical industry proposed by the utility model;

[0034] Figure 4 This is a disassembled diagram of a hollow circular plate of a current limiting device applied to coal chemical industry proposed by the utility model;

[0035] Figure 5 for Figure 4 Enlarged view of point A.

[0036] Legend:

[0037] 1. Hollow circular plate; 2. Sealing connection mechanism; 201. Flange 1; 202. Flange 2; 203. Connecting screw; 204. Clamping half ring; 205. Fixing screw; 206. Connecting pipe; 3. Flow hole; 4. Protective cover; 5. Motor; 6. Rotating disk; 7. Arc groove; 8. Fixed disk; 9. U-shaped plate; 10. Moving bar; 11. Limiting column; 12. Arc baffle; 13. Circular pipe; 14. Circular baffle; 15. Sealing ring; 16. Pressure sensor; 17. Temperature sensor; 18. Fixed plate; 19. Information card board; 20. Observation window; 21. Sealing frame; 22. U-shaped column; 23. Handle; 24. Conical buffer block; 25. Buffer baffle. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Reference Figure 3 、 Figure 4 and Figure 5 , the utility model provides an embodiment: a flow limiting device used in coal chemical industry, comprising a hollow circular plate 1, a plurality of flow holes 3 are opened on the left side of the hollow circular plate 1, a motor 5 is fixedly connected to the middle part of the left side of the hollow circular plate 1, a protective cover 4 is fixedly connected to the left side of the hollow circular plate 1, the output end of the motor 5 passes through the hollow circular plate 1 and is fixedly connected to a rotating disk 6, a plurality of arc grooves 7 are opened on the left side of the rotating disk 6, a fixed disc 8 is fixedly connected to the right side of the inner wall of the hollow circular plate 1, a plurality of U-shaped plates 9 are fixedly connected to the left side of the fixed disc 8, a moving bar 10 is slidably connected to the inner wall of the U-shaped plate 9, a limiting column 11 is fixedly connected to the left side of the moving bar 10, the limiting column 11 is slidably connected to the arc groove 7, an arc baffle 12 is fixedly connected to the outer side of the moving bar 10, a circular pipe 13 is fixedly connected to the outer side of the hollow circular plate 1, and a sealing connection mechanism 2 is provided on the left and right sides of the circular pipe 13, which is used to connect with the pipeline;

[0040] Specifically, when the size of the hole needs to be adjusted, the motor 5 can be started to drive the rotating disk 6 to rotate, and then the rotating arc groove 7 can drive the limit column 11 to move, and then drive the moving bar 10 to move, and at the same time drive the arc baffle 12 to move outward. At this time, the arc baffle 12 will gradually block the flow hole 3, thereby adjusting the flow size of the hole.

[0041] Reference Figure 1 、 Figure 2 and Figure 3 The sealing connection mechanism 2 includes two flanges 201, which are fixedly connected to the left and right sides of the circular pipe 13 respectively. The left and right sides of the circular pipe 13 are both provided with connecting pipes 206. The adjacent sides of the two connecting pipes 206 are fixedly connected to flange 202. The outer side of flange 202 is provided with multiple connecting screws 203. Flange 1 201 and flange 2 202 are fixedly connected by connecting screws 203. The upper and lower sides of the outer wall of flange 1 201 are both provided with locking half rings 204. The front and rear sides of the locking half ring 204 are both provided with fixing screws 205. The outer wall of the fixing screw 205 passes through the locking half ring 204.

[0042] Specifically, flange 1 201 and flange 2 202 are connected by connecting screws 203, and at the same time, the outer locking half ring 204 wraps flange 1 201 and flange 2 202, and then they are connected by fixing screws 205, so that the circular pipe 13 is connected above the connecting pipe 206, thereby making the connection more stable and reducing the possibility of gaps in the connection.

[0043] Reference Figure 1 and Figure 2 A pressure sensor 16 is fixedly connected to the top of the outer wall of the circular pipe 13, a temperature sensor 17 is fixedly connected to the top side of the front outer wall of the circular pipe 13, a fixing plate 18 is fixedly connected to the left front portion of the circular pipe 13, an information card plate 19 is fixedly connected to the front side of the fixing plate 18, an observation window 20 is opened on the right front portion of the circular pipe 13, and a sealing frame 21 is fixedly connected to the outer side of the observation window 20;

[0044] Specifically, by installing the pressure sensor 16 on the circular pipe 13, the pressure conditions inside the pipe can be conveniently monitored and detected in real time. By using the temperature sensor 17, the temperature changes inside the circular pipe 13 can be accurately measured and understood. In addition, the function of the information card board 19 is to record and store the basic operating information of the circular pipe 13 for subsequent analysis and reference. Finally, through the observation window 20, the staff can easily observe the specific conditions inside the circular pipe 13, so as to promptly discover and deal with possible problems.

[0045] Reference Figure 1 、 Figure 2 and Figure 3 The bottom of the circular pipe 13 is fixedly connected to a U-shaped column 22, the outer side of the U-shaped column 22 is fixedly connected to a handle 23, the middle part of the right side of the hollow circular plate 1 is fixedly connected to a conical buffer block 24, the right side of the inner wall of the circular pipe 13 is fixedly connected to a buffer baffle 25, the left and right sides of the circular pipe 13 are provided with a sealing ring 15, and the left side of the inner wall of the circular pipe 13 is fixedly connected to a circular baffle 14;

[0046] Specifically, by using the U-shaped column 22 and the handle 23, it can be more convenient to pick up and operate during the installation operation, thereby improving the convenience and efficiency of installation. At the same time, the introduction of the conical buffer block 24 can reduce the direct impact and obstruction of the internal liquid on the arc baffle 12, thereby extending its service life and maintaining its structural integrity. The presence of the buffer baffle 25 can further protect the arc baffle 12, prevent the liquid from directly impacting the baffle when flowing at high speed, and reduce the potential risk of damage. The sealing ring 15 ensures that the liquid will not leak when flowing inside the equipment, thereby ensuring the sealing performance and safety of the pipeline. Finally, the annular baffle 14 can limit the position of the hollow circular plate 1, ensure that it maintains the correct positioning, and avoid pipeline failure or performance degradation due to position deviation.

[0047] Working principle: Before using the device, first, when the size of a specific hole needs to be adjusted, the motor 5 is started to drive the rotating disk 6 to rotate, and the rotation of the rotating disk 6 will drive the arc groove 7 to rotate accordingly, thereby pushing the limit column 11 to move along the predetermined path. The movement of the limit column 11 will drive the moving bar 10 connected to it to make a corresponding displacement. At the same time, the movement of the moving bar 10 will cause the arc baffle 12 to move outward. As the arc baffle 12 moves outward, it will gradually cover and block the flow hole 3, thereby achieving fine adjustment of the hole flow size and And through the sealing connection mechanism 2, flange 1 201 and flange 2 202 are tightly connected together by connecting screws 203. In order to further enhance the stability of the connection, the outer locking half ring 204 tightly wraps flange 1 201 and flange 2 202, and fixes them firmly together by tightening the fixing screws 205, ensuring the reliability of the connection. Finally, the circular pipe 13 is connected above the connecting pipe 206, which not only improves the overall stability, but also greatly reduces the possibility of gaps during the connection process, ensuring the sealing and reliability of the pipe.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A current limiting device used in coal chemical industry, comprising a hollow circular plate (1), characterized in that: The left side of the hollow circular plate (1) is provided with a plurality of flow holes (3), the middle portion of the left side of the hollow circular plate (1) is fixedly connected to a motor (5), the left side of the hollow circular plate (1) is fixedly connected to a protective cover (4), the output end of the motor (5) passes through the hollow circular plate (1) and is fixedly connected to a rotating disk (6), the left side of the rotating disk (6) is provided with a plurality of arc grooves (7), the right side of the inner wall of the hollow circular plate (1) is fixedly connected to a fixed disk (8), and the left side of the fixed disk (8) is fixedly connected to a plurality of A U-shaped plate (9) is provided, wherein the inner wall of the U-shaped plate (9) is slidably connected to a moving bar (10), the left side of the moving bar (10) is fixedly connected to a limiting column (11), the limiting column (11) is slidably connected to the arc-shaped groove (7), the outer side of the moving bar (10) is fixedly connected to an arc-shaped baffle (12), the outer side of the hollow circular plate (1) is fixedly connected to a circular pipe (13), and the left and right sides of the circular pipe (13) are both provided with sealing connection mechanisms (2), and the sealing connection mechanism (2) is used to connect to the pipe.

2. A current limiting device for coal chemical industry according to claim 1, characterized in that: The sealing connection mechanism (2) comprises two flanges (201), the two flanges (201) being fixedly connected to the left and right sides of the circular pipe (13), respectively. The left and right sides of the circular pipe (13) are both provided with connecting pipes (206), and the adjacent sides of the two connecting pipes (206) are both fixedly connected to flanges (202). The outer side of the flanges (202) is provided with a plurality of connecting screws (203), the flanges (201) and the flanges (202) are fixedly connected via the connecting screws (203), the upper and lower sides of the outer wall of the flanges (201) are both provided with engaging half rings (204), the front and rear sides of the engaging half rings (204) are both provided with fixing screws (205), and the outer wall of the fixing screws (205) passes through the engaging half ring (204).

3. The current limiting device used in coal chemical industry according to claim 1, characterized in that: A pressure sensor (16) is fixedly connected to the top of the outer wall of the circular pipe (13), and a temperature sensor (17) is fixedly connected to the top side of the front portion of the outer wall of the circular pipe (13).

4. The current limiting device used in coal chemical industry according to claim 1, characterized in that: A fixing plate (18) is fixedly connected to the left side of the front of the circular pipe (13), and an information card plate (19) is fixedly connected to the front side of the fixing plate (18).

5. The current limiting device used in coal chemical industry according to claim 1, characterized in that: An observation window (20) is provided on the right side of the front portion of the circular pipe (13), and a sealing frame (21) is fixedly connected to the outer side of the observation window (20).

6. The current limiting device used in coal chemical industry according to claim 1, characterized in that: A U-shaped column (22) is fixedly connected to the bottom of the circular pipe (13), and a handle (23) is fixedly connected to the outer side of the U-shaped column (22).

7. The current limiting device used in coal chemical industry according to claim 1, characterized in that: A conical buffer block (24) is fixedly connected to the middle portion of the right side of the hollow circular plate (1), and a buffer baffle (25) is fixedly connected to the right side of the inner wall of the circular pipe (13).

8. The current limiting device used in coal chemical industry according to claim 1, characterized in that: The left and right sides of the circular pipe (13) are both provided with sealing rings (15), and the left side of the inner wall of the circular pipe (13) is fixedly connected with a circular baffle (14).

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