Multi-hole distributed flow-limiting pore plate device

Abstract

The utility model discloses a porous distributed flow-limiting orifice plate device, which relates to the technical field of flow-limiting orifice plates and comprises a straight pipe section, a plurality of flow-limiting orifice plates which are mounted in the straight pipe section and are distributed in a porous manner, and a mounting mechanism which is arranged in the straight pipe section and is used for mounting the flow-limiting orifice plates. Through the arrangement of the sliding rails, a worker can conveniently push a plurality of flow-limiting pore plates into each straight pipe section, throttling holes of the plurality of flow-limiting pore plates distributed in multiple holes can be located in a design area for positioning, the flow-limiting pore plates can be installed and fixed through clamping of the rubber clamping blocks and limiting of the limiting rings, and therefore the flow-limiting pore plates can be installed and fixed conveniently. The limiting orifice plate can be tightly pressed on the sealing ring under the impact of fluid, the sealing effect between the limiting orifice plate and the straight pipe section is improved, the whole limiting orifice plate only needs to be pushed to the limiting ring along the sliding rail, the installation process of the limiting orifice plate can be completed, convenience and rapidness are achieved, and later replacement and maintenance are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to flow restriction orifice technology field especially is related to a kind of porous distributed flow restriction orifice device. BACKGROUND

[0002] Flow restriction orifice can be used as flow measurement element to measure flow, and can also be used as throttling element to limit flow and reduce pressure. The flow restriction orifice device currently used is composed of a straight pipe section, an orifice plate, and connecting accessories. When the fluid passes through the flow restriction orifice in the pipeline, a pressure difference will be generated at the front and rear ends of the flow restriction orifice. This pressure difference promotes the fluid to accelerate through the flow restriction orifice, and the rapidly flowing fluid will generate a large amount of energy loss when passing through the flow restriction orifice. The pressure energy is converted into vibration, noise, heat energy and other forms of energy, causing pressure loss and reducing the pressure energy of the fluid.

[0003] The patent with publication number CN208503755U discloses a "porous distributed flow restriction orifice device, comprising a single-stage flow restriction orifice and a two-stage flow restriction orifice. The single-stage flow restriction orifice is fixedly connected with the two-stage flow restriction orifice. The single-stage flow restriction orifice includes a first straight pipe section, a first limiting platform, and a first flow restriction orifice. A first throttling hole is formed in the first flow restriction orifice. Through the above technical solution, efficient flow restriction and pressure reduction can be achieved with low noise and long service life. When multiple flow restriction orifices are used in combination, the installation space can be greatly reduced."

[0004] According to the related technology described above, the inventors believe that the flow restriction orifice is installed in the straight pipe section by welding. However, welding can cause air pollution, and if the weld is not tight, the fluid may flow from the gap between the flow restriction orifice and the limiting platform, affecting the flow restriction effect. It is also difficult to replace the welded flow restriction orifice, making it inconvenient to use. UTILITY MODEL CONTENTS

[0005] The utility model provides a porous distributed flow restriction orifice device to overcome the deficiencies of the prior art. The specific technical solution is as follows:

[0006] A porous distributed flow restriction orifice device includes a straight pipe section, a plurality of flow restriction orifices installed in the straight pipe section and distributed in a porous manner, and a mounting mechanism provided in the straight pipe section for mounting the flow restriction orifices. The mounting mechanism includes a plurality of limiting rings fixedly provided in the straight pipe section for limiting the flow restriction orifices, and a plurality of groups of rubber clamping blocks fixedly provided in the straight pipe section. The rubber clamping blocks are fitted in the clamping grooves formed on the outer sidewall of the flow restriction orifice. A sealing ring is provided between the limiting ring and the flow restriction orifice. A sliding rail for sliding and positioning the flow restriction orifice is fixedly provided on the inner wall of the straight pipe section.

[0007] Through adoption of the above technical scheme, through the setting of the slide rail, the staff can conveniently push the several flow limiting orifice plates into the respective straight pipe sections, so that the throttling holes of the several flow limiting orifice plates distributed in a porous manner can be positioned in the design area, the flow limiting orifice plates can be installed and fixed through the clamping and limiting of the rubber clamping block and the limiting ring, and the flow limiting orifice plates can be tightly pressed on the sealing ring under the impact of the fluid, thereby improving the sealing effect between the flow limiting orifice plates and the straight pipe sections.

[0008] Optionally, the straight pipe section comprises a first straight pipe section, a second straight pipe section and a third straight pipe section arranged in sequence, and the several flow limiting orifice plates are respectively fixedly installed in the adaptively matched first straight pipe section, second straight pipe section and third straight pipe section, and the first straight pipe section and the second straight pipe section are provided with a plurality of positioning holes at one end, and the second straight pipe section and the third straight pipe section are fixedly provided with a plurality of positioning rods inserted into the positioning holes.

[0009] Through adoption of the above technical scheme, the first straight pipe section, the second straight pipe section and the third straight pipe section can be connected and positioned through the insertion of the positioning rods into the positioning holes.

[0010] Optionally, the first straight pipe section is fixedly provided with a first fixing ring on the outer wall, the third straight pipe section is fixedly provided with a second fixing ring on the outer wall, the third straight pipe section is provided with a plurality of insertion holes in the inner wall, and the first fixing ring is fixedly provided with a plurality of insertion rods inserted into the insertion holes on one side.

[0011] Through adoption of the above technical scheme, the first fixing ring and the second fixing ring can be connected through the insertion of the insertion rods into the third straight pipe section, and the first straight pipe section and the third straight pipe section can be further connected and positioned.

[0012] Optionally, the third straight pipe section is provided with a limiting groove at one end, a fixing bolt is threadedly connected into the limiting groove of the third straight pipe section, the fixing bolt is fixedly provided with a rotating block at one end, the rotating block is rotatably provided with a limiting plate abutting against the limiting groove on the outer wall, a triangular groove is formed in the outer wall of one end of the insertion rod, the limiting plate is fixedly provided with a trapezoidal block inserted into the triangular groove on the side away from the fixing bolt, and a bevel is formed in one side of the trapezoidal block for laterally extruding the insertion rod through the guidance.

[0013] Through adoption of the above technical scheme, the trapezoidal block can be inserted into the triangular groove through the rotation of the fixing bolt, the first straight pipe section, the second straight pipe section and the third straight pipe section can be fixed, and the trapezoidal block inserted into the triangular groove can laterally press the insertion rod under the guidance of the bevel on one side of the trapezoidal block, so that the first straight pipe section and the third straight pipe section are close to each other, and the tightness and firmness of the connection between the straight pipe sections are improved.

[0014] In summary, the utility model has at least one of the following beneficial effects:

[0015] 1. The sliding rail design allows workers to easily push several flow-limiting orifice plates into each straight pipe section, ensuring that the throttling orifices of the multi-hole distributed flow-limiting orifice plates are positioned within the designed area. The rubber clamps and the limiting rings ensure the orifice plates are installed and fixed. Under the impact of the fluid, the orifice plates are tightly pressed against the sealing ring, improving the sealing effect between the orifice plates and the straight pipe section. The entire installation process is simple: just push the orifice plates along the sliding rail to the limiting ring. This is convenient, quick, and facilitates future replacement and maintenance.

[0016] 2. By inserting the positioning rod into the positioning hole, the first, second, and third straight pipe sections can be connected and positioned. By inserting the rod into the second fixing ring and cooperating with the rotating fixing bolt, the trapezoidal block is inserted into the triangular groove, which can fix the first, second, and third straight pipe sections together. Under the guidance of the inclined surface on one side of the trapezoidal block, the trapezoidal block, which is slowly inserted into the triangular groove, can exert lateral pressure on the rod, thereby bringing the first and third straight pipe sections closer together, improving the tightness and firmness of the connection between the straight pipe sections, and facilitating use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a front sectional view of the overall structure of this utility model;

[0019] Figure 3 This is the utility model Figure 2 Enlarged view of the A-structure;

[0020] Figure 4 This is a left view of the first straight pipe section, slide rail, and rubber clamp of this utility model;

[0021] Figure 5 This is the utility model Figure 2 Enlarged view of the B-structure.

[0022] Explanation of reference numerals in the attached drawings: 1. First straight pipe section; 11. Second straight pipe section; 12. Third straight pipe section; 13. Positioning rod; 2. Flow limiting orifice plate; 3. Limiting ring; 31. Rubber clamp; 32. Sealing ring; 33. Slide rail; 4. First fixing ring; 41. Second fixing ring; 42. Insert rod; 43. Triangular groove; 44. Limiting groove; 45. Fixing bolt; 46. Rotating block; 47. Limiting plate; 48. Trapezoidal block. Detailed Implementation

[0023] The following is in conjunction with the appendix Figures 1-5 The present invention will be described in further detail below.

[0024] The utility model discloses a kind of porous distributed flow limiting orifice plate devices, refer to Figures 1-3 Including straight pipe section, several flow limiting orifice plate 2 and mounting mechanism, straight pipe section includes sequentially arranged first straight pipe section 1, second straight pipe section 11 and third straight pipe section 12, second straight pipe section 11 is clamped between first straight pipe section 1 and third straight pipe section 12.

[0025] Refer to Figures 1-2 First straight pipe section 1 and second straight pipe section 11 one end are provided with several positioning holes, and the positioning rod 13 of several positioning holes is fixed in the cooperation plug-in in second straight pipe section 11 and third straight pipe section 12 one end, the positioning rod 13 of second straight pipe section 11 is cooperatively plugged in the positioning hole of first straight pipe section 1, and the positioning rod 13 of third straight pipe section 12 is cooperatively plugged in the positioning hole of second straight pipe section 11, so as to be connected and positioned by the plug-in of positioning hole and positioning rod 13 to first straight pipe section 1, second straight pipe section 11 and third straight pipe section 12 three, wherein the number of straight pipe section is three and more than three.

[0026] Refer to Figures 1-2 Several flow limiting orifice plate 2 are installed in straight pipe section and porous distribution, and several flow limiting orifice plate 2 are fixedly installed in the first straight pipe section 1, second straight pipe section 11 and third straight pipe section 12 of adaptation respectively, and several throttling holes of porous distribution are provided on flow limiting orifice plate 2, to carry out flow limiting and pressure reduction, wherein several flow limiting orifice plate 2 of porous distribution are prior art, and its internal structure and principle have been disclosed, and here too much is not described, and sealing member can also be arranged at the connection of first straight pipe section 1, second straight pipe section 11 and third straight pipe section 12.

[0027] Refer to Figures 2-3 Mounting mechanism includes multiple limit rings 3 for limiting flow limiting orifice plate 2 in straight pipe section and multiple groups of rubber clamping blocks 31 fixed in straight pipe section, limit ring 3 is arranged at the side of flow limiting orifice plate 2 away from fluid flow direction, so that flow limiting orifice plate 2 can be pressed to limit ring 3 side under the impact of fluid, thereby improving the stability after installation of flow limiting orifice plate 2.

[0028] Refer to Figures 2-4 Rubber clamping block 31 is cooperatively clamped in the clamping groove of the outer side wall of flow limiting orifice plate 2, and sealing ring 32 is arranged between limit ring 3 and flow limiting orifice plate 2, rubber clamping block 31 can be hemispherical shape, after being clamped into the clamping groove of adaptation, it can be connected and fixed between flow limiting orifice plate 2 and straight pipe section, so as to install flow limiting orifice plate 2, and flow limiting orifice plate 2 can be tightly pressed on sealing ring 32 under the impact of fluid, to improve the sealing effect between flow limiting orifice plate 2 and straight pipe section.

[0029] Refer to Figures 2-4The inner wall of the straight pipe section is fixedly provided with sliding rails 33 for sliding and positioning the flow limiting orifice plate 2, and the edge side of the flow limiting orifice plate 2 is provided with sliding holes for the sliding rails 33 to pass through, so that the staff can conveniently push a plurality of flow limiting orifice plates 2 into each straight pipe section, and the throttling holes of the plurality of flow limiting orifice plates 2 distributed in a plurality of holes can be positioned in the designed area in the straight flow section, so that accurate positioning is achieved and operation is facilitated.

[0030] With reference to Figure 1 , Figure 2 and Figure 5 , the outer wall of the first straight pipe section 1 is fixedly provided with a first fixed ring 4, the outer wall of the third straight pipe section 12 is fixedly provided with a second fixed ring 41, the third straight pipe section 12 is provided with a plurality of insertion holes, and the first fixed ring 4 is fixedly provided with a plurality of insertion rods 42 which are inserted into the insertion holes, so that the first fixed ring 4 and the second fixed ring 41 can be connected, and the first straight pipe section 1 and the third straight pipe section 12 can be connected and positioned.

[0031] With reference to Figure 1 , Figure 2 and Figure 5 , one end of the third straight pipe section 12 is provided with a limiting groove 44, the limiting groove 44 of the third straight pipe section 12 is threadedly connected with a fixed bolt 45, one end of the fixed bolt 45 is fixedly provided with a rotating block 46, the outer wall of the rotating block 46 is rotatably provided with a limiting plate 47 which abuts against the limiting groove 44, the third straight pipe section 12 can limit the limiting plate 47 through the limiting groove 44, so that the limiting plate 47 can only move in one direction and cannot rotate, and the rotating block 46 can connect the fixed bolt 45 and the limiting plate 47, so that the limiting plate 47 can move at one end of the fixed bolt 45 without being separated.

[0032] With reference to Figure 1 , Figure 2 and Figure 5 , the outer wall of one end of the insertion rod 42 is provided with a triangular groove 43, the side of the limiting plate 47 away from the fixed bolt 45 is fixedly provided with a trapezoidal block 48 which is inserted into the triangular groove 43, and the side of the trapezoidal block 48 is provided with an inclined surface for laterally pressing the insertion rod 42 through guidance, the fixed bolt 45 can drive the limiting plate 47 and the trapezoidal block 48 to move after being rotated, so that the trapezoidal block 48 can be inserted into the triangular groove 43, and the inclined surface on one side of the trapezoidal block 48 can abut against the inclined surface of the triangular groove 43, the trapezoidal block 48 can laterally press the insertion rod 42 through the inclined surface guidance with the continuous insertion of the trapezoidal block 48, so that the first straight pipe section 1 and the third straight pipe section 12 can be close to each other and press and compact the second straight pipe section 11 in the middle, and the tightness and firmness of the connection between the straight pipe sections are improved.

[0033] The implementation principle of the multi-hole distributed flow limiting orifice plate device is as follows:

[0034] During installation, the staff can push the multi-hole distributed flow limiting orifice plate 2 along the slide rail 33 to the limiting ring 3 of the straight pipe section, so that the rubber clamping block 31 can be inserted into the clamping groove behind the flow limiting orifice plate 2, thereby completing the installation process of a single flow limiting orifice plate 2, and then repeatedly operating the above steps to install several flow limiting orifice plates 2 into the first straight pipe section 1, the second straight pipe section 11 and the third straight pipe section 12;

[0035] Then the positioning rod 13 is inserted into the corresponding positioning hole to sequentially splice and assemble the first straight pipe section 1, the second straight pipe section 11 and the third straight pipe section 12, and the insertion rod 42 is inserted into the third straight pipe section 12 at the same time;

[0036] Then the fixed bolt 45 is rotated to drive the limiting plate 47 and the trapezoidal block 48 to move, so that the trapezoidal block 48 can be inserted into the triangular groove 43, and the inclined surface on one side of the trapezoidal block 48 can abut against the inclined surface of the triangular groove 43. With the continuous insertion of the trapezoidal block 48, the trapezoidal block 48 can be laterally pressed by the inclined surface guide, so that the first straight pipe section 1 and the third straight pipe section 12 can be close to each other and extrude and compact the second straight pipe section 11 in the middle, thereby completing the overall installation process of the device.

[0037] During use, the flow limiting orifice plate 2 can be pressed to the side of the limiting ring 3 under the impact of the fluid, thereby improving the stability of the installed flow limiting orifice plate 2, and the flow limiting orifice plate 2 can be tightly pressed on the sealing ring 32 under the impact of the fluid, thereby improving the sealing effect between the flow limiting orifice plate 2 and the straight pipe section.

[0038] The above only describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-hole distributed flow-limiting orifice plate device, comprising a straight pipe section, a plurality of flow-limiting orifice plates (2) installed in the straight pipe section and distributed in a multi-hole manner, and an installation mechanism provided in the straight pipe section for installing the flow-limiting orifice plates (2), characterized in that: The installation mechanism includes multiple limiting rings (3) fixedly installed in the straight pipe section for limiting the flow limiting orifice plate (2), and multiple sets of rubber clips (31) fixedly installed in the straight pipe section. The rubber clips (31) are engaged in the slots opened on the outer side wall of the flow limiting orifice plate (2). A sealing ring (32) is provided between the limiting ring (3) and the flow limiting orifice plate (2). A slide rail (33) is fixedly provided on the inner wall of the straight pipe section for sliding the flow limiting orifice plate (2) and positioning the flow limiting orifice plate (2).

2. The porous distributed flow-limiting orifice plate device according to claim 1, characterized in that: The straight pipe section includes a first straight pipe section (1), a second straight pipe section (11), and a third straight pipe section (12) arranged in sequence, and several flow-limiting orifice plates (2) are respectively fixedly installed in the first straight pipe section (1), the second straight pipe section (11), and the third straight pipe section (12) that are adapted to each other.

3. The porous distributed flow-limiting orifice plate device according to claim 2, characterized in that: The first straight pipe section (1) and the second straight pipe section (11) have several positioning holes at one end, and the second straight pipe section (11) and the third straight pipe section (12) have several positioning rods (13) that are inserted into the positioning holes at one end.

4. The porous distributed flow-limiting orifice plate device according to claim 3, characterized in that: The outer wall of the first straight pipe section (1) is fixed with a first fixing ring (4), and the outer wall of the third straight pipe section (12) is fixed with a second fixing ring (41).

5. The porous distributed flow-limiting orifice plate device according to claim 4, characterized in that: The third straight pipe section (12) has several insertion holes, and the first fixing ring (4) has several insertion rods (42) fixed on one side to be inserted into the insertion holes.

6. The porous distributed flow-limiting orifice plate device according to claim 5, characterized in that: The third straight pipe section (12) has a limiting groove (44) at one end, and a fixing bolt (45) is threaded into the limiting groove (44) of the third straight pipe section (12).

7. The porous distributed flow-limiting orifice plate device according to claim 6, characterized in that: One end of the fixing bolt (45) is fixed with a rotating block (46), and the outer wall of the rotating block (46) is rotatably provided with a limiting plate (47) that abuts against the limiting groove (44).

8. The porous distributed flow-limiting orifice plate device according to claim 7, characterized in that: The outer wall of one end of the insertion rod (42) is provided with a triangular groove (43). The limiting plate (47) is fixed with a trapezoidal block (48) that is inserted into the triangular groove (43) on the side away from the fixing bolt (45). The trapezoidal block (48) has an inclined surface on one side for laterally pressing the insertion rod (42) by means of a guide.

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