Liquid flow detector

Abstract

A liquid flow detector comprises a detection pipeline, a connecting seat and a detection instrument, the connecting seat is fixedly installed at the top end of the detection pipeline, a vertical rod is fixedly connected to the top end of the connecting seat, the detection instrument is fixedly connected to the top end of the vertical rod, and a liquid flow turbine detection structure is arranged on the inner side of the detection pipeline. The two ends of the detection pipeline are provided with pipeline encryption butt joint structures. According to the liquid flow detector, when liquid flow detection is needed, the two ends of the detection pipeline are in butt joint with a liquid pipeline needing to be detected through flanges, so that liquid flows through the interior of the detection pipeline, when the liquid flows through the detection pipeline, a turbine is scoured to rotate, the worm gear can rotate in the middle of a transmission rod, and the rotating speed changes along with different flow speeds; the condition of the liquid flow velocity is reflected in real time by utilizing different turbine rotating speeds, the turbine rotating speeds are converted into electric signals, the fluid flow can be accurately reflected, the turbine flowmeter is high in impurity resistance and simple in structure, and the application range of the liquid flow detector is widened.

Description

Technical Field

[0001] This utility model relates to the field of liquid flow detection technology, and in particular to a liquid flow detector. Background Technology

[0002] A liquid flow meter is an instrument used to measure the flow rate of liquids. The working principle of a flow meter includes measuring the velocity of fluid through a pipe per unit time, or measuring the volume of fluid through the cross-sectional area of ​​the pipe. Based on different working principles, flow meters can be classified into several types, such as rotary flow meters and float flow meters.

[0003] For example, a liquid flow meter with authorization announcement number CN222144241U has the top of the threaded rod located on the upper side of the flow meter. This makes it easier to rotate the threaded rod and avoids the situation where the flow meter is extremely inconvenient to disassemble and assemble due to the narrow space for pipe disassembly and assembly. This can improve the work efficiency of the staff and the comfort of operation.

[0004] However, there are still some problems with the use of the liquid flow meters mentioned above. For example, the liquid flow meters mentioned above are currently fixed by being separately assembled from the liquid pipeline. Therefore, the detection method of the liquid flow meters is basically that of electromagnetic flow meters. When a conductive medium flows in a magnetic field, it cuts the magnetic field lines to generate an induced electromotive force. By measuring this induced voltage, the fluid velocity can be indirectly obtained, and the flow rate can be calculated. Therefore, the detection range of electromagnetic flow meters is relatively limited, and there may be inaccurate measurement problems when dealing with liquids with many impurities, which affects the application range of the liquid flow meters.

[0005] Meanwhile, existing liquid flow meters are fixed to the liquid pipeline by bolts, so the liquid does not flow inside the meter. Therefore, when installing the flow meter, flanges are needed at both ends to connect the liquid pipeline at the detection position to the pipeline through which the liquid flows. Conventional flange connection methods have poor tightness, and leaks are prone to occur at the flange joints as the liquid flows. Leaks in the pipeline greatly affect the accuracy of the liquid flow rate and reduce the detection accuracy of the liquid flow meter. Summary of the Invention

[0006] This invention aims to solve the problems existing in the prior art by providing a liquid flow meter that can improve the scope of application and increase the accuracy of detection.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0008] Design a liquid flow detector, including a detection pipe, a connecting seat, and a detection instrument. The connecting seat is fixedly installed at the top of the detection pipe, and a vertical rod is fixedly connected to the top of the connecting seat. The detection instrument is fixedly connected to the top of the vertical rod. A liquid flow turbine detection structure is provided on the inner side of the detection pipe, and pipe reinforcement connection structures are provided at both ends of the detection pipe.

[0009] Further improvements are made to the liquid flow worm gear detection structure, which includes a support ring and a turbine. Two support rings are fixedly connected to both ends of the inner wall of the detection pipe. Support frames are fixedly connected to the lower ends of the inner walls of the two support rings. Rotating blocks are fixedly connected to the top ends of the two support frames. A transmission rod is rotatably connected to the inner side of the two rotating blocks through bearings. The turbine is fixedly sleeved on the outer wall of the transmission rod.

[0010] To further improve the design, a flow detection structure is provided on one side of the transmission rod. The flow detection structure includes a speed sensor and a sealing tube. The speed sensor is fixedly and rotatably connected to one end of the transmission rod. The top of the speed sensor is fixedly connected to the sealing tube. The sealing tube is fixedly installed inside the detection pipe. A transmission line is fixedly connected to the inner side of the sealing tube.

[0011] Further improvements include a fixed connection between the other end of the sealing tube and the lower end of the connecting seat, and an electrical connection between the other end of the transmission line and the lower end of the detection instrument.

[0012] Further improvements include a first flange and a second flange in the pipeline densification connection structure. The two first flanges are fixedly connected to both ends of the detection pipeline. The other side of the two first flanges is movably connected to a second flange. The ends of the two first flanges are fixedly connected to a connecting pipe. The outer wall of the connecting pipe is fixedly fitted with multiple abutment rings. The inner side of the two second flanges is fixedly connected to a fitting pipe. The inner wall of the fitting pipe is movably connected to the outer side of the abutment rings.

[0013] Further improvements include a fixing bolt connected to the inner thread of the first flange, and mounting holes fixed inside the two second flanges, with the mounting holes positioned opposite to the fixing bolts.

[0014] The beneficial effects of this utility model are as follows: When liquid flow detection is required, the two ends of the detection pipe are connected to the liquid pipe to be detected through flanges. In this way, the liquid will flow through the inside of the detection pipe. When the liquid flows through, the turbine rotates, and the worm gear can rotate in the middle of the transmission rod. The rotation speed will also change with different flow velocities. The different turbine speeds are used to reflect the liquid flow velocity in real time. The turbine speed is converted into an electrical signal, which can accurately reflect the fluid flow rate. The turbine flow meter has strong anti-impurity ability, simple structure, and improves the applicability of the liquid flow detector.

[0015] The butt joint protrudes and is fixed to the outside of the first flange. The clamping rings are made of multi-stage rubber ring material. After the second flange is connected to the first flange, the fitting pipe on the back of the second flange can fit the fixed external pipe on the outside of the butt joint. Then the inner wall of the fitting pipe fits and seals with multiple clamping rings, which increases the tightness of the internal pipe of the flange, making the pipe less prone to water and air leakage and improving the detection accuracy of the liquid flow meter. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 for Figure 1 A frontal sectional view;

[0018] Figure 3 for Figure 1 A schematic diagram of the right-side side view;

[0019] Figure 4 for Figure 2 Enlarged schematic diagram of part A in the middle;

[0020] Figure 5 for Figure 2 Enlarged diagram of part B

[0021] Figure 6 for Figure 2 Enlarged diagram of section C.

[0022] Explanation of reference numerals in the attached drawings: 1. Detection pipe, 2. Connecting seat, 3. Vertical rod, 4. Detection instrument, 5. Liquid flow turbine detection structure, 51. Support ring, 52. Support frame, 53. Rotating block, 54. Transmission rod, 55. Turbine, 6. Flow detection structure, 61. Speed ​​sensor, 62. Sealing pipe, 63. Transmission line, 7. Pipeline re-connection structure, 71. First flange, 72. Second flange, 73. Connecting pipe, 74. Anchoring ring, 75. Fitting pipe, 81. Fixing bolt, 82. Mounting hole. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] Example 1: Refer to Appendix Figures 1-6In this embodiment, a liquid flow detector includes a detection pipe 1, a connecting seat 2, and a detection instrument 4. The connecting seat 2 is fixedly installed at the top of the detection pipe 1 and welded to the top of the detection pipe 1. Both the connecting seat 2 and the detection pipe 1 are made of stainless steel. A vertical rod 3, also made of stainless steel, is fixedly connected to the top of the connecting seat 2 to vertically fix the detection instrument 4 to the top of the detection pipe 1. The detection instrument 4 is fixedly connected to the top of the vertical rod 3. The detection instrument 4 can be a flow meter with the model number EXQ41W, which can clearly and quantitatively determine the flow rate of the liquid in the pipe. A liquid flow turbine detection structure 5 is provided on the inner side of the detection pipe 1, and pipe reinforcement connection structures 7 are provided at both ends of the detection pipe 1.

[0025] The liquid flow worm gear detection structure 5 includes a support ring 51 and a turbine 55. Two support rings 51 are fixedly connected to both ends of the inner wall of the detection pipe 1. The diameter of the support rings 51 is basically the same as the inner diameter of the detection pipe 1. The support rings 51 are supported inside the detection pipe 1. A support frame 52 is fixedly connected to the lower end of the inner wall of the two support rings 51. The support frame 52 is vertically welded to the bottom inner side of the support rings 51. The transmission rod 54 can be rotated through the bearing inside the rotating block 53.

[0026] Rotating blocks 53 are fixedly connected to the top of the two support frames 52. The inner sides of the two rotating blocks 53 are rotatably connected to the transmission rod 54 through bearings. The turbine 55 is fixedly sleeved on the outer wall of the transmission rod 54. When liquid flow detection is required, the two ends of the detection pipe 1 are connected to the liquid pipe to be detected through flanges. In this way, the liquid will flow through the inside of the detection pipe 1. When the liquid flows through, it washes the turbine 55 to rotate. The worm gear 55 can rotate in the middle of the transmission rod 54. The rotation speed will also change with different flow rates.

[0027] The diameter of the support ring 51 is basically the same as the inner diameter of the detection pipe 1. The support ring 51 is supported inside the detection pipe 1. The support frame 52 is vertically welded to the bottom inner side of the support ring 51. The transmission rod 54 can be rotated through the bearing inside the rotating block 53. When liquid flow detection is required, the two ends of the detection pipe 1 are connected to the liquid pipe to be detected through flanges. In this way, the liquid will flow through the inside of the detection pipe 1. When the liquid flows through, the scouring turbine 55 rotates. The worm gear 55 can rotate in the middle of the transmission rod 54. The rotation speed will also change with different flow rates. The different turbine speeds are used to reflect the liquid flow rate in real time. The turbine speed is converted into an electrical signal, which can accurately reflect the fluid flow rate. The turbine flow meter has strong anti-impurity ability, simple structure, and improves the applicability of the liquid flow meter.

[0028] The pipeline densification connection structure 7 includes a first flange 71 and a second flange 72. The two first flanges 71 are fixedly connected to both ends of the detection pipeline 1. The first flanges 71 are welded to the left and right ends of the detection pipeline 1. The other side of the two first flanges 71 is movably connected to the second flange 72. The ends of the two first flanges 71 are fixedly connected to the connecting pipe 73. The connecting pipe 73 protrudes out of the outside of the first flange 71 and is fixedly fixed. Multiple clamping rings 74 are fixedly sleeved on the outer wall of the connecting pipe 73. The clamping rings 74 are made of multi-level rubber ring material. After the second flange 72 and the first flange 71 are connected, the fitting pipe 75 on the rear side of the second flange 72 can fit the fixed external pipeline on the outside of the connecting pipe 73.

[0029] Then, the inner wall of the fitting tube 75 and multiple clamping rings 74 are fitted together to achieve a seal, which increases the tightness of the internal pipe fitting of the flange and makes the pipe less prone to water and air leakage. The fitting tube 75 is fixedly connected to the inner side of the two second flanges 72. The inner wall of the fitting tube 75 is movably connected to the outer side of the clamping rings 74. The inner side of the first flange 71 is threaded with a fixing bolt 81. The two second flanges 72 are fixedly provided with mounting holes 82 inside. The fixing bolt 81 can pass through the mounting holes 82 inside the first flange 71 and the second flange 72. Then, the nut is rotated and tightened to achieve fixed installation. Multiple mounting holes 82 are set opposite to the fixing bolt 81.

[0030] The butt joint 73 protrudes and is fixed to the outside of the first flange 71. The clamping ring 74 is made of multi-stage rubber ring material. After the second flange 72 is connected to the first flange 71, the fitting tube 75 on the back side of the second flange 72 can fit the fixed external pipe on the outside of the butt joint 73. Then the inner wall of the fitting tube 75 fits and seals with multiple clamping rings 74, which increases the tightness of the internal pipe of the flange, making the pipe less prone to water and air leakage and improving the detection accuracy of the liquid flow meter.

[0031] Working principle:

[0032] Liquid flow meters use turbine rotation to measure flow rate. Fluid flow drives the turbine, and the turbine speed is proportional to the fluid velocity. By converting the turbine speed into an electrical signal, the fluid flow rate is reflected. Turbine flow meters have strong resistance to impurities and a simple structure.

[0033] Turbine detection structure of liquid flow meter:

[0034] The diameter of the support ring 51 is basically the same as the inner diameter of the detection pipe 1. The support ring 51 is supported inside the detection pipe 1. The support frame 52 is vertically welded to the bottom inner side of the support ring 51. The rotating block 53 can rotate the transmission rod 54 through the bearing inside. When liquid flow detection is required, the two ends of the detection pipe 1 are connected to the liquid pipe to be detected through flanges. In this way, the liquid will flow through the inside of the detection pipe 1. When the liquid flows through, the flushing turbine 55 rotates, and the worm gear 55 can rotate in the middle of the transmission rod 54. The rotation speed will also change with different flow rates.

[0035] Pipeline sealing connection structure of liquid flow meter:

[0036] The butt joint 73 protrudes and is fixed to the outside of the first flange 71. The clamping ring 74 is made of multi-stage rubber ring material. After the second flange 72 is connected to the first flange 71, the fitting pipe 75 on the back side of the second flange 72 can fit the fixed external pipe on the outside of the butt joint 73. Then the inner wall of the fitting pipe 75 fits and seals with multiple clamping rings 74, which increases the tightness of the internal pipe of the flange and makes the pipe less prone to water and air leakage.

[0037] Example 2: Refer to Appendix Figures 1-6 In this embodiment, a liquid flow detector further includes a flow detection structure 6 on one side of a transmission rod 54. The flow detection structure 6 includes a speed sensor 61 and a sealing tube 62. The speed sensor 61 is fixedly and rotatably connected to one end of the transmission rod 54. The speed sensor 61 adopts the [Elecware]-ESH series speed sensor. When the turbine 55 drives the transmission rod 54 to rotate, the speed sensor 61 can identify the speed change of the turbine 55 in real time, and then display the flow rate data on the detection instrument 4 through the transmission line 63. The top of the speed sensor 61 is fixedly connected to the sealing tube 62. The sealing tube 62 is made of a flexible and deformable silicone tube. The sealing tube 62 is sleeved on the outside of the transmission line 63, which can effectively prevent the liquid flowing inside the detection pipe 1 from affecting the transmission line 63. The sealing tube 62 is fixedly installed inside the detection pipe 1. The inner side of the sealing tube 62 is fixedly connected to the transmission line 63. The other end of the sealing tube 62 is fixedly connected to the lower end of the connecting seat 2. The other end of the transmission line 63 is electrically connected to the lower end of the detection instrument 4.

[0038] Working principle:

[0039] When the turbine 55 drives the transmission rod 54 to rotate, the speed sensor 61 can identify the speed change of the turbine 55 in real time, and then display the flow rate data on the detection instrument 4 through the transmission line 63. The sealing tube 62 is made of soft and flexible silicone tube. The sealing tube 62 is sleeved on the outside of the transmission line 63, which can effectively prevent the liquid flowing inside the detection pipe 1 from affecting the transmission line 63.

[0040] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A liquid flow detector, comprising a detection pipe (1), a connecting seat (2) and a detector meter (4), the connecting seat (2) being fixedly installed at the top end of the detection pipe (1), characterized in that: The top end of the connecting seat (2) is fixedly connected with a vertical rod (3), the detecting instrument (4) is fixedly connected at the top end of the vertical rod (3), the inner side of the detecting pipeline (1) is provided with a liquid flow turbine detecting structure (5), and both ends of the detecting pipeline (1) are provided with a pipeline encryption butt joint structure (7). The liquid flow turbine detecting structure (5) comprises support rings (51) and a turbine (55), two support rings (51) are fixedly connected at both ends of the inner wall of the detecting pipeline (1), the inner wall lower ends of the two support rings (51) are fixedly connected with support frames (52), the top ends of the two support frames (52) are fixedly connected with rotating blocks (53), the inner sides of the two rotating blocks (53) are rotatably connected with transmission rods (54) through bearings, and the turbine (55) is fixedly sleeved on the outer wall of the transmission rod (54).

2. The liquid flow detector of claim 1, wherein: One side of the transmission rod (54) is provided with a flow detecting structure (6), the flow detecting structure (6) comprises a rotating speed sensor (61) and a sealing pipe (62), one end of the rotating speed sensor (61) is fixedly rotatably connected with the transmission rod (54), the top end of the rotating speed sensor (61) is fixedly connected with the sealing pipe (62), the sealing pipe (62) is fixedly installed in the detecting pipeline (1), and the inner side of the sealing pipe (62) is fixedly connected with a transmission line (63).

3. The liquid flow detector of claim 2 wherein: The other end of the sealing pipe (62) is fixedly connected with the lower end of the connecting seat (2), and the other end of the transmission line (63) is electrically connected with the lower end of the detecting instrument (4).

4. The liquid flow detector of claim 1 wherein: The pipeline encryption butt joint structure (7) comprises first flanges (71) and second flanges (72), two first flanges (71) are fixedly connected at both ends of the detecting pipeline (1), the other sides of the two first flanges (71) are movably connected with second flanges (72), the end portions of the two first flanges (71) are fixedly connected with butt joint pipes (73), the outer wall of the butt joint pipe (73) is fixedly sleeved with a plurality of abutting rings (74), the inner sides of the two second flanges (72) are fixedly connected with abutting pipes (75), and the inner wall of the abutting pipe (75) is movably connected with the outer side of the abutting ring (74).

5. The liquid flow detector of claim 4 wherein: The inner side of the first flange (71) is screw-connected with a fixing bolt (81), and the inner sides of the two second flanges (72) are fixedly provided with mounting holes (82), and the mounting holes (82) are oppositely arranged with the fixing bolt (81).

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