Anti-rotation stable flow adjusting device for liquid conveying pipeline

Abstract

According to the anti-rotation stable flow adjusting device for the liquid conveying pipeline, the distance between a first pipeline connecting flange and a second pipeline connecting flange is fixed through a plurality of spacer sleeves, the first pipeline connecting flange and the second pipeline connecting flange are fixedly connected into a whole through a plurality of connecting bolts, and fixing screws and connecting pieces are arranged between the first pipeline connecting flange and the second pipeline connecting flange; the fixing screws are arranged perpendicular to the axial direction of the core plate, the two ends, arranged on the fixing screws in a sleeving mode, of the connecting pieces are connected with the spacer sleeves at the corresponding positions in a matched mode respectively, and when the fixing screws are screwed and connected with the threaded holes in the core plate, the connecting pieces and the two corresponding spacer sleeves are pressed and fixed. According to the utility model, the problem of abnormal rotation of the core plate caused by unstable fluid pressure is solved, the reliability of the position of the core plate is improved, the precision of a fluid flowing section is ensured, the structure is simple, the flow regulation is convenient, the equipment debugging time is shortened, the flow regulation efficiency is improved, and the use value is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of flow regulation, and in particular relates to an anti-rotation stable flow regulation device for a liquid transmission pipeline. Background Art

[0002] During the transportation process, different equipment or the same equipment has different requirements for the flow or pressure of the fluid. Therefore, a throttling orifice plate or regulating valve is usually installed in the pipeline to adjust the flow or pressure. The throttling orifice plate method is to try to replace the orifice plate with different apertures to meet the adjustment requirements when the flow and pressure of the fluid change. The regulating valve method is to adjust the size of the fluid cross-section in the valve through an external handle or handwheel according to the changes in the flow and pressure of the fluid, so as to achieve the purpose of throttling.

[0003] The conventional throttling orifice plate adjustment method and valve adjustment method have the following defects: ① Since the diameter of each throttling hole in the throttling orifice plate method is relatively fixed, it is impossible to make corresponding adjustments according to the changes in flow rate. When the flow rate and pressure change, it is necessary to try to replace the throttling orifice plate again. This adjustment method has weak adaptability, inaccurate adjustment, and is time-consuming and labor-intensive; ② The replacement of the fixed-aperture throttling orifice plate requires stopping the delivery of the fluid before replacement, which affects the normal operation of the equipment; ③ The throttling orifice plate adjustment method requires valves to be added on both sides of the orifice plate so that the fluid is not lost during replacement, and orifice plates with different apertures need to be prepared, which has a high cost of use; ④ The valve adjustment method requires a large installation space, and space for valve operation and maintenance needs to be reserved; ⑤ Frequent adjustment The valve is prone to leakage at the valve stem, which makes maintenance and replacement difficult; the valve sealing requirements are high, and the cost of regulating valves is high; for this reason, the company has designed a structure with patent number 202221824509.4 and patent name "Flow regulating device for liquid transmission pipelines" (hereinafter referred to as the comparative document), which can conveniently and quickly regulate the fluid flow. However, since the two ends of the regulating core are respectively adapted in the positioning ring grooves of the connecting flanges at the corresponding ends, that is, the position of the regulating core is floating, during use, abnormal rotation often occurs due to unstable fluid pressure, resulting in changes in the flow cross-sectional area, which seriously affects the adjustment accuracy of the fluid flow area. Therefore, in order to solve the above technical problems, it is necessary to make improvements. Utility Model Content

[0004] The technical problem solved by the utility model is: to provide an anti-rotation stable flow regulating device for a liquid transmission pipeline, by arranging a connecting piece sleeved on a fixing screw between a pipeline connecting flange 1 and a pipeline connecting flange 2, so that the two ends of the connecting piece are respectively adapted and buckled with the spacer sleeves at the corresponding positions, and when the fixing screws are tightened and connected with the threaded holes on the core plate, the connecting piece and the corresponding two spacer sleeves are pressed and fixed, which solves the problem of abnormal rotation of the core plate caused by unstable fluid pressure, improves the reliability of the core plate position, ensures the accuracy of the fluid flow cross-section, has a simple structure and is easy to operate, and the flow regulation is convenient, which shortens the equipment debugging time, improves the flow regulation efficiency, and has a high use value.

[0005] The technical solution adopted by the utility model: an anti-rotation stable flow regulating device for a liquid transmission pipeline, comprising a pipeline connecting flange 1, a pipeline connecting flange 2 and a core plate arranged between the pipeline connecting flange 1 and the pipeline connecting flange 2, the two ends of the core plate are respectively adapted to the positioning ring grooves on the corresponding side wall surfaces of the pipeline connecting flange 1 and the pipeline connecting flange 2, and are contacted and sealed with the corresponding positioning ring groove walls through sealing rings arranged in the sealing grooves at both ends of the outer circumferential wall of the core plate, the pipeline connecting flange 1 and the pipeline connecting flange 2 are spaced by multiple distance sleeves and are fixed as a whole by multiple connecting bolts, a fixing screw and a connecting piece are provided between the pipeline connecting flange 1 and the pipeline connecting flange 2, the fixing screw is arranged perpendicular to the axial direction of the core plate, and the two ends of the connecting piece sleeved on the fixing screw are respectively adapted to be connected with the distance sleeves at the corresponding positions, and the connecting piece is pressed and fixed to the corresponding two distance sleeves when the fixing screw is screwed and fixed to the threaded hole on the core plate.

[0006] Among them, the connecting part is a connecting pressure plate, which includes a horizontal section and arc sections arranged at both ends of the horizontal section and adapted to the distance sleeve. A connecting hole is made in the middle of the horizontal section, and the fixing screw passes through the connecting hole and is adapted to be connected with the threaded hole on the core plate. The arc sections at both ends of the connecting pressure plate are adapted to be buckled on the distance sleeve at the corresponding position.

[0007] Furthermore, the horizontal section and the arc sections at both ends thereof are an integrated structure.

[0008] Furthermore, a plurality of stepped holes with inner end diameters larger than outer end diameters are evenly distributed on the circumference of the inner side walls of the pipeline connecting flange 1 and the pipeline connecting flange 2, and the distance sleeve is a stepped sleeve with a middle diameter larger than the diameters at both ends, and the two ends of the distance sleeve are respectively adapted to the stepped holes of the pipeline connecting flange 1 and the pipeline connecting flange 2.

[0009] Furthermore, the pipe connection flange 1 and the pipe connection flange 2 are evenly provided with a plurality of through holes on their plate surfaces, and connecting bolts passing through the through holes and adapted to connect with nuts fix the pipe connection flange 1, the pipe connection flange 2 and the distance sleeve together.

[0010] Furthermore, the channel hole 1 on the plate surface of the pipeline connecting flange 1 and the pipeline connecting flange 2 and the channel hole 2 on the plate surface of the core plate are all eccentric holes.

[0011] The advantages of this utility model compared with the prior art:

[0012] 1. This technical solution provides a connector sleeved on a fixing screw between the first and second pipeline connection flanges, so that both ends of the connector are respectively adapted and buckled with the corresponding distance sleeves. When the fixing screws are tightened and connected with the threaded holes on the core plate, the connector is pressed and fixed with the corresponding two distance sleeves, thereby solving the problem of abnormal rotation of the core plate caused by unstable fluid pressure, improving the reliability of the core plate position, and ensuring the accuracy of the fluid flow section.

[0013] 2. The distance sleeve of this technical solution adopts a stepped sleeve with a middle diameter larger than the diameters at both ends, and the two ends of the distance sleeve are respectively adapted to the stepped holes of the pipeline connection flange 1 and the pipeline connection flange 2, so as to ensure the reliability of the position of the stepped holes and the pipeline connection flange 1 and the pipeline connection flange 2, and ensure that the relative position of the pipeline connection flange 1 and the pipeline connection flange 2 is fixed, which is conducive to the installation and docking of the pipeline connection flange 1 and the pipeline connection flange 2;

[0014] 3. This technical solution has a simple structure and is easy to operate, with convenient flow adjustment, shortening the equipment debugging time, improving the flow adjustment efficiency, fixing the core plate so that it will not deflect at will, ensuring the stability of operation, and having high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 This is the front view of the connecting plate structure of the utility model;

[0018] Figure 4 This is a top view of the connecting pressure plate structure of the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiment of the present utility model Figure 1-4 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0022] Anti-rotation stable flow regulating device for liquid transmission pipeline, such as Figure 1-2 As shown, it includes a pipeline connection flange 1, a pipeline connection flange 2 and a core plate 3 arranged between the pipeline connection flange 1 and the pipeline connection flange 2, the two ends of the core plate 3 are respectively adapted to the positioning ring grooves 4 on the corresponding side wall surfaces of the pipeline connection flange 1 and the pipeline connection flange 2, and the sealing rings 12 arranged in the sealing grooves at both ends of the outer circumferential wall of the core plate 3 are in contact and sealed with the corresponding groove walls of the positioning ring groove 4, ensuring that the core plate 3 can meet the sealing requirements when fixed and adjusted, the pipeline connection flange 1 and the pipeline connection flange 2 are spaced by multiple distance sleeves 5 and are fixedly connected as a whole by multiple connecting bolts, and fixing screws 6 and connecting parts are provided between the pipeline connection flange 1 and the pipeline connection flange 2, and the fixing screws 6 are vertical The two ends of the connecting piece which is arranged perpendicular to the axial direction of the core plate 3 and is sleeved on the fixing screw 6 are respectively adapted and connected with the distance sleeves 5 at the corresponding positions, and the connecting piece is pressed and fixed with the two corresponding distance sleeves 5 when the fixing screw 6 is screwed and fixed with the threaded hole on the core plate 3; in the above structure, a connecting piece which is sleeved on the fixing screw 6 is arranged between the pipeline connection flange 1 and the pipeline connection flange 2, so that the two ends of the connecting piece are respectively adapted and buckled with the distance sleeves 5 at the corresponding positions, and the connecting piece is pressed and fixed with the two corresponding distance sleeves 5 when the fixing screw 6 is screwed and fixed with the threaded hole on the core plate 3, thereby solving the problem of abnormal rotation of the core plate 3 caused by unstable fluid pressure, improving the reliability of the position of the core plate 3, and ensuring the accuracy of the fluid flow section;

[0023] like Figure 2-4 As shown, the connecting member is a connecting pressure plate 7, and the connecting pressure plate 7 includes a horizontal section 71 and arc sections 72 arranged at both ends of the horizontal section 71 and adapted to the distance sleeve 5. A connecting hole 73 is formed in the middle of the horizontal section 71, and the fixing screw 6 passes through the connecting hole 73 and is adapted to be connected with the threaded hole on the core plate 3. The arc sections 72 at both ends of the connecting pressure plate 7 are adapted to be buckled on the distance sleeve 5 at the corresponding position; specifically, the horizontal section 71 and the arc sections 72 at both ends thereof are an integrated structure.

[0024] like Figure 2 As shown, a plurality of stepped holes 10 with inner end diameters larger than outer end diameters are uniformly distributed on the circumference of the inner side walls of the pipeline connection flange 1 and the pipeline connection flange 2, and the distance sleeve 5 is a stepped sleeve with a middle diameter larger than the diameters at both ends, and the two ends of the distance sleeve 5 are respectively adapted to the stepped holes 10 of the pipeline connection flange 1 and the pipeline connection flange 2; in the above structure, the distance sleeve 5 adopts a stepped sleeve with a middle diameter larger than the diameters at both ends, and the two ends of the distance sleeve 5 are respectively adapted to the stepped holes of the pipeline connection flange 1 and the pipeline connection flange 2, so as to ensure the reliability of the positions of the stepped holes and the pipeline connection flange 1 and the pipeline connection flange 2, and ensure that the relative positions of the pipeline connection flange 1 and the pipeline connection flange 2 are fixed, which is conducive to the installation and docking of the pipeline connection flange 1 and the pipeline connection flange 2;

[0025] Among them, the pipe connecting flange 1 and the pipe connecting flange 2 are evenly distributed with multiple through holes 11, and the connecting bolts passing through the through holes 11 and adapted to be connected with the nuts fix the pipe connecting flange 1, the pipe connecting flange 2 and the distance sleeve 5 into one; specifically, the channel hole 18 on the pipe connecting flange 1 and the pipe connecting flange 2 and the channel hole 29 on the core plate 3 are all eccentric holes.

[0026] When adjusting the flow area, remove the fixing screws 6 and the pressure plate 7, screw a longer screw into the threaded hole on the outer wall of the core plate 3, rotate the core plate 3 until the required pressure or flow is reached, remove the longer screw, and fasten the pressure plate 7 to the corresponding position of the distance sleeve 5 through the fixing screws 6 threadedly connected to the core plate 3, thereby fixing the core plate 3 so that it will not deflect at will, thereby ensuring the stability of operation.

[0027] The technical solution has the advantages of simple structure, low cost, convenient replacement and maintenance, convenient flow regulation, shortened equipment debugging time, improved flow regulation efficiency, fixed core plate 3 and no random deflection, thus ensuring operational stability, strong applicability, and capable of rapid and timely adjustment for different flow or pressure requirements of fluids between different devices or under different working conditions of the same device during the fluid transportation process; online adjustment of aperture can be achieved without stopping the fluid transportation, thus ensuring the normal operation of the equipment, no special requirements for installation space and maintenance space, and can be applied to various occasions. By changing the materials of pipeline connecting flange 1 and pipeline connecting flange 2, as well as the eccentricity of channel hole 1 8 thereon, the material of sealing ring 12, etc., the structure can be applied to different media and different occasions, and has high use value.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An anti-rotation stable flow regulating device for a liquid transmission pipeline, comprising a pipeline connection flange one (1), a pipeline connection flange two (2) and a core plate (3) arranged between the pipeline connection flange one (1) and the pipeline connection flange two (2), wherein the two ends of the core plate (3) are respectively adapted to the positioning ring grooves (4) on the corresponding side wall surfaces of the pipeline connection flange one (1) and the pipeline connection flange two (2), and the sealing rings (12) arranged in the sealing grooves at the two ends of the outer circumferential wall of the core plate (3) are in contact and sealed with the corresponding positioning ring groove (4) groove wall, the pipeline connection flange one (1) and the pipeline connection flange two (2) are spaced by a plurality of spacing sleeves (5) and are fixedly connected as a whole by a plurality of connecting bolts, characterized in that: A fixing screw (6) and a connecting piece are provided between the pipeline connecting flange 1 (1) and the pipeline connecting flange 2 (2). The fixing screw (6) is arranged perpendicular to the axial direction of the core plate (3), and the two ends of the connecting piece sleeved on the fixing screw (6) are respectively adapted to be connected with the distance sleeves (5) at corresponding positions, and when the fixing screw (6) is screwed and fixedly connected with the threaded hole on the core plate (3), the connecting piece is pressed and fixed with the corresponding two distance sleeves (5).

2. The anti-rotation stable flow regulating device for a liquid transmission pipeline according to claim 1, characterized in that: The connecting member is a connecting pressure plate (7), and the connecting pressure plate (7) comprises a horizontal section (71) and arc sections (72) arranged at both ends of the horizontal section (71) and adapted to the distance sleeve (5). A connecting hole (73) is formed in the middle of the horizontal section (71), and a fixing screw (6) passes through the connecting hole (73) and is adapted to be connected to a threaded hole on the core plate (3). The arc sections (72) at both ends of the connecting pressure plate (7) are adapted to be buckled on the distance sleeve (5) at corresponding positions.

3. The anti-rotation stable flow regulating device for a liquid transmission pipeline according to claim 2, characterized in that: The horizontal section (71) and the arc sections (72) at both ends thereof are an integrated structure.

4. The anti-rotation stable flow regulating device for a liquid transmission pipeline according to claim 1, 2 or 3, characterized in that: The inner side walls of the pipeline connection flange 1 (1) and the pipeline connection flange 2 (2) are uniformly distributed with a plurality of stepped holes (10) whose inner end diameter is larger than the outer end diameter; the distance sleeve (5) is a stepped sleeve whose middle diameter is larger than the diameters at both ends; and the two ends of the distance sleeve (5) are respectively adapted to fit in the stepped holes (10) of the pipeline connection flange 1 (1) and the pipeline connection flange 2 (2).

5. The anti-rotation stable flow regulating device for a liquid transmission pipeline according to claim 4, characterized in that: The pipe connection flange 1 (1) and the pipe connection flange 2 (2) are evenly distributed with a plurality of through holes (11) on their plate surfaces, and connecting bolts passing through the through holes (11) and adapted to connect with nuts fix the pipe connection flange 1 (1), the pipe connection flange 2 (2) and the distance sleeve (5) together.

6. The anti-rotation stable flow regulating device for a liquid transmission pipeline according to claim 5, characterized in that: The channel hole one (8) on the plate surface of the pipeline connection flange one (1) and the pipeline connection flange two (2) and the channel hole two (9) on the plate surface of the core plate (3) are all eccentric holes.

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