Linkage type industrial gas flow velocity detection device

Abstract

The invention relates to the technical field of detection devices, in particular to a linkage type industrial gas flow velocity detection device which comprises a gas source, a vortex flow sensor and a thermobaric instrument sensor, the vortex flow sensor and the thermobaric instrument sensor are fixedly installed on the gas source, one side of the gas source is fixedly connected with a vacuum pump through a pipeline, and the other side of the gas source is fixedly connected with a stagnation container through a pipeline. A plurality of operation steps of pipeline butt joint, flange locking and the like of the flowmeter are integrated into continuous automatic actions, the traditional tedious process of manual alignment and one-by-one bolt tightening is abandoned, an operator only needs to place the turbine flowmeter at the designated position of the supporting block and start the device in the operation process, and the operation efficiency is greatly improved. The fixing mechanism can drive the exhaust pipe to move to be matched with the breather pipe through driving of the air cylinder and synchronous transmission of the gear and the rack, precise butt joint and preliminary fixing of the flowmeter and the pipelines at the two ends are completed, manual intervention calibration is not needed, the installation and fixing time of the flowmeter is greatly shortened, and the overall efficiency of detection operation is improved.

Description

Technical Field

[0001] This invention relates to the field of detection device technology, specifically to a linkage-type industrial gas flow rate detection device. Background Technology

[0002] Industrial gas flow rate detection is a core component of ensuring the accuracy of metering in industrial gas delivery systems. Flow meter calibration is a crucial aspect of this process, often requiring the use of metering equipment such as turbine flow meters and vortex flow meters to detect and calibrate the flow rate. The core workflow involves reliably connecting the flow meter to be tested / calibrated to the pipeline system of the testing device, introducing the gas to be tested with the set parameters into the pipeline, and then using the flow meter readings to complete the gas flow rate detection and calibration.

[0003] In existing technologies, the connection between flow meters and detection pipelines generally adopts the operation method of "manual assistance + bolt tightening": during operation, the flow meter must first be placed on a simple bracket, and the spatial position of the flow meter must be manually adjusted to ensure that the flanges at both ends of the flow meter are precisely aligned with the flanges of the fixed and movable pipelines of the detection device. Then, the flange connectors are tightened one by one by multiple bolts distributed around the circumference to complete the fixed connection between the two. Although some improved devices use cylinders to push the movable pipeline, they still cannot be separated from manual calibration and the axial alignment of the flow meter and the pipeline must be manually adjusted.

[0004] Traditional connection methods have many technical drawbacks. On the one hand, the alignment of the flow meter and the pipeline and the calibration of the axis rely entirely on manual operation, which not only requires high operational experience from the operators, but is also very easy to affect the connection accuracy due to manual adjustment errors, thereby interfering with the accuracy of subsequent flow rate detection data. On the other hand, flange connections require manual tightening of bolts one by one, which is cumbersome and time-consuming. It cannot achieve automated and rapid installation of the flow meter and the detection pipeline, resulting in low work efficiency and difficulty in meeting the operational needs of fully automated detection production lines in modern industrial production.

[0005] In summary, existing industrial gas flow rate detection devices suffer from problems such as complex operation procedures, excessive manual intervention, low connection efficiency, and susceptibility to human factors in the flow meter installation and connection process. Therefore, a linkage-type industrial gas flow rate detection device is needed to improve these issues. Summary of the Invention

[0006] The purpose of this invention is to provide a linkage-type industrial gas flow rate detection device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A linkage-type industrial gas flow rate detection device includes a gas source, a vortex flow sensor and a temperature and pressure instrument sensor fixedly installed on the gas source. A vacuum pump is fixedly connected to one side of the gas source through a pipeline, and a stagnation container is fixedly connected to the other side through a pipeline. A diverter pipe is fixedly connected to the stagnation container.

[0008] A support platform is provided on one side near the diversion pipe. A fixing plate is fixed to the bottom of the support platform, and there is a gap between the bottom of the support platform and the top of the support platform. A vent pipe fixed to the diversion pipe is fixed at one end of the top of the support platform, and an exhaust pipe is movably installed at the other end. A turbine flow meter for detecting the flow rate of the gas flowing inside the vent pipe is installed on the top of the support platform. One end of the turbine flow meter is connected to the vent pipe, and the other end is connected to the exhaust pipe.

[0009] The fixing plate is provided with a fixing mechanism for fixing both ends of the turbine flow meter. One end of the fixing mechanism is fixedly connected to the exhaust pipe, and the other end is slidably fitted on the vent pipe.

[0010] The fixing plate is provided with a limiting mechanism for limiting the fixing mechanism, and the limiting mechanism is provided with a clamping mechanism for clamping the fixed turbine flow meter.

[0011] As a preferred embodiment of the present invention, the top of the support platform is provided with four movable slots and through holes in a rectangular shape.

[0012] As a preferred embodiment of the present invention, a mounting base is fixedly installed on the top of the support platform, and a support block is fixedly installed on both ends of the top of the mounting base, with a turbine flow meter placed on the two support blocks.

[0013] As a preferred embodiment of the present invention, a lifting frame is also fixed on one side of the support platform, and a roller is rotatably mounted on the top of the lifting frame, with the outer wall of the exhaust pipe in contact with the roller.

[0014] As a preferred embodiment of the present invention, the fixing mechanism includes gears rotatably mounted at both ends of the top of the fixing plate, and guide rods are fixed on both sides of the top of the fixing plate located on the gears. Racks are slidably fitted on both guide rods, and both racks mesh with the gears.

[0015] Two racks located inside the gear are respectively fixedly connected to one end of a first connecting rod, and two racks located outside the gear are respectively fixedly connected to one end of a second connecting rod. One end of the two first connecting rods is fixedly connected to a first mounting bracket. A movable ring is fixedly connected to the first mounting bracket, and the movable ring slides on the outer wall of the exhaust pipe. One end of the two second connecting rods passes through a movable groove and is fixedly connected to a second mounting bracket. A fixed ring is fixedly connected to the second mounting bracket. One end of the top of the support platform is fixedly connected to a cylinder. There are two cylinders, and the movable ends of both cylinders are fixed to the second mounting bracket.

[0016] As a preferred embodiment of the present invention, the rack is provided with a plurality of limiting holes at equal intervals along its length.

[0017] As a preferred embodiment of the present invention, the limiting mechanism includes a support frame fixed to the top of the fixed plate, an electric push rod fixed to the top of the fixed plate, a lifting plate fixed to the moving end of the electric push rod after passing through the top plate of the support frame, and four limiting rods fixed to the bottom of the lifting plate, the limiting rods passing through the support frame and extending into the limiting holes.

[0018] As a preferred embodiment of the present invention, the support frame is shaped like an inverted "U". A through hole is provided in the middle of the top of the support frame, and a circular hole is also provided in the top of the top of the support frame. There are four circular holes. The moving end of the electric push rod passes through the through hole, and the limiting rod is fitted with the circular hole with a clearance.

[0019] As a preferred embodiment of the present invention, the clamping mechanism includes two fixed rods respectively fixed on both sides of the lifting plate, and the two fixed rods on the same side are jointly fixedly connected to the lifting frame. The top of the lifting frame has a through hole and a connecting frame is fixedly connected thereto, and the bottom of the connecting frame is fixedly connected to a first locking block.

[0020] The top of the fixed plate is fixedly connected to a fixed frame below the two side lifting frames. A baffle is fixedly connected to the vertical rods at both ends of the fixed frame. A connecting plate is slidably connected to the vertical rods at both ends of the fixed frame. The connecting plate is located above the baffle. The connecting plates on both sides of the vertical rod are fixedly connected to a second locking block. A round rod is horizontally fixedly connected to the vertical rods on both sides of the fixed frame. An L-shaped rod is rotatably connected to the round rod. The L-shaped rod is L-shaped. The vertical end of the L-shaped rod abuts against the bottom of the second locking block. The other end of the L-shaped rod is rotatably connected to a connecting rod. One end of the connecting rod is rotatably connected to a connecting block. One end of the connecting block is fixed to the lifting frame.

[0021] As a preferred embodiment of the present invention, both the first and second card blocks are provided with card slots, and rubber pads are provided in the card slots. The connecting plate is provided with sliding holes that slide with the vertical rods on both sides of the fixing frame, and the L-shaped rod is provided with rotating holes that rotate with the round rod.

[0022] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention integrates multiple operational steps, such as pipe connection and flange locking of the flow meter, into a continuous automated action, eliminating the tedious process of traditional manual alignment and individual bolt tightening. During operation, the operator only needs to place the turbine flow meter in the designated position on the support block and start the device. The fixing mechanism, driven by a cylinder and synchronously transmitted by a gear and rack, moves the exhaust pipe to cooperate with the vent pipe, completing the precise connection and initial fixing of the flow meter with the pipes at both ends. No manual intervention or calibration is required, significantly shortening the installation and fixing time of the flow meter and improving the overall efficiency of the testing operation.

[0023] 2. In this invention, after the fixing mechanism completes the connection between the flow meter and the pipeline, the limiting mechanism can drive the limiting rod to insert into the limiting hole of the rack via an electric push rod, thereby rigidly limiting the relative position of the rack and gear and completely eliminating the backlash in the gear-rack meshing pair. This design effectively avoids the slight displacement or loosening caused by transmission clearance between the turbine flow meter and the ventilation pipe and exhaust pipe during the testing process, ensuring the coaxiality and connection rigidity of the flow meter and the testing pipeline at all times. Structurally, it avoids testing errors caused by connection deviations, ensuring the accuracy and repeatability of gas flow rate calibration data.

[0024] 3. In this invention, while the limiting mechanism positions the fixing mechanism, the clamping mechanism can be driven simultaneously to clamp and fix the turbine flow meter. During the process of the lifting plate descending and driving the limiting rod to limit, the first clamping block will be driven downward to fit against the top of the flow meter flange through the fixing rod and the lifting frame. At the same time, the second clamping block will be lifted upward to fit against the bottom of the flow meter flange through the transmission of the L-shaped rod and the connecting rod, forming an upper and lower wrapping clamping of the "pipe-flow meter-pipe" connection node. This double fixing structure can effectively suppress the airflow impact and vibration caused by equipment operation during the detection process, and prevent the connection parts from loosening or displacing. This not only improves the overall operational stability of the device, but also reduces the safety hazards caused by the loosening of the flow meter during the detection process.

[0025] 4. The rack of the present invention has multiple limiting holes equidistantly opened along the length direction, which can adjust the docking position of the fixing mechanism according to the turbine flow meter of different length specifications, adapt to the detection needs of various types of flow meters, and improve the versatility of the device. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the turbine flow meter structure after installation according to the present invention; Figure 3 This is a schematic diagram of the assembly structure of the present invention; Figure 4 This is a schematic diagram of the fixing mechanism structure of the present invention; Figure 5 This is a schematic diagram of the rack structure of the present invention; Figure 6 This is a schematic diagram of the connection structure between the limiting mechanism and the clamping mechanism of the present invention; Figure 7 For the present invention Figure 6 A magnified view of the structure at point A in the middle; Figure 8 This is a schematic diagram of the support frame structure of the present invention.

[0027] In the diagram: 1. Gas source; 11. Vortex flow sensor; 12. Temperature and pressure sensor; 13. Vacuum pump; 14. Stagnation container; 2. Diverter pipe; 3. Support platform; 31. Moving slot; 32. Through hole; 33. Fixing plate; 34. Lifting frame; 4. Vent pipe; 41. Exhaust pipe; 5. Mounting base; 51. Support block; 6. Turbine flow meter; 7. Fixing mechanism; 71. Gear; 72. Guide rod; 73. Rack; 731. Limiting hole; 74. First connecting rod; 741. Second connecting rod; 75. First mounting bracket 751. Moving ring; 76. Cylinder; 77. Second mounting bracket; 771. Fixed ring; 8. Limiting mechanism; 81. Support frame; 811. Through hole; 812. Round hole; 82. Electric push rod; 83. Lifting plate; 84. Limiting rod; 9. Clamping mechanism; 91. Fixed rod; 92. Lifting frame; 93. Connecting frame; 94. First locking block; 95. Fixed frame; 951. Baffle; 952. Connecting plate; 96. Second locking block; 97. Round rod; 971. L-shaped rod; 972. Connecting rod; 973. Connecting block. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] To facilitate understanding of the present invention, a more comprehensive description of the invention will be given below with reference to the accompanying drawings, and several embodiments of the invention will be provided. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the invention will be more thorough and complete.

[0030] For examples, please refer to Figure 1-8 The present invention provides a technical solution: A linkage-type industrial gas flow rate detection device includes a gas source 1, a vortex flow sensor 11 and a temperature and pressure instrument sensor 12 fixedly installed on the gas source 1. A vacuum pump 13 is fixedly connected to one side of the gas source 1 through a pipe, and a stagnation container 14 is fixedly connected to the other side through a pipe. A diverter pipe 2 is fixedly connected to the stagnation container 14.

[0031] Among them, the gas source 1 adopts a high-pressure gas storage tank made of 304 stainless steel, which has corrosion resistance and pressure resistance. The vortex flow sensor 11 (measurement range 0.1-100m³ / h, accuracy ±0.5%FS) and the temperature and pressure instrument sensor 12 (temperature measurement range -40~150℃, pressure measurement range 0-2MPa) are fixed to the output pipe of the gas source 1 through flanges to collect the basic flow, temperature and pressure data of the gas source output in real time, providing environmental parameter compensation basis for subsequent flow rate detection. The vacuum pump 13 is connected to the gas source 1 through a pressure-resistant rubber tube to quickly discharge residual gas and avoid cross-interference of gas under different detection conditions. The stagnation container 14 adopts a cylindrical structure with polished inner wall to stabilize the gas path pressure, eliminate airflow pulsation, and ensure that the gas flow field entering the diversion pipe 2 is uniform.

[0032] A support platform 3 is provided on one side near the diversion pipe 2. A fixing plate 33 is fixed to the bottom of the support platform 3, and there is a gap between the plate and the top of the support platform 3. The gap can be used to provide space for the installation of the fixing mechanism 7 and the limiting mechanism 8. A vent pipe 4, which is fixedly connected to the diversion pipe 2, is fixed to one end of the top of the support platform 3, and an exhaust pipe 41 is movably installed at the other end. A turbine flow meter 6, which is used to detect the flow rate of the gas flowing inside the vent pipe 4, is installed on the top of the support platform 3. One end of the turbine flow meter 6 is connected to the vent pipe 4, and the other end is connected to the exhaust pipe 41. The connection is sealed, such as by using a rubber sealing gasket, which is existing technology and will not be described in detail here.

[0033] The fixing plate 33 is provided with a fixing mechanism 7 for fixing both ends of the turbine flow meter 6. One end of the fixing mechanism 7 is fixedly connected to the exhaust pipe 41, and the other end is slidably fitted on the vent pipe 4.

[0034] The vent pipe 4 is also equipped with a valve to control the flow of gas.

[0035] The fixing plate 33 is provided with a limiting mechanism 8 for limiting the fixing mechanism 7, and the limiting mechanism 8 is provided with a clamping mechanism 9 for clamping the fixed turbine flow meter 6.

[0036] In this embodiment, the top of the support platform 3 is provided with four rectangular through-holes 31 and through-holes 32.

[0037] Among them, the support platform 3 is made of Q235 steel plate welded together, and the bottom is fixed to the ground by anchor bolts.

[0038] In this embodiment, a mounting base 5 is fixedly installed on the top of the support platform 3, and two supports 51 are fixedly installed on the top two ends of the mounting base 5, with a turbine flow meter 6 placed on the two supports 51.

[0039] Among them, the mounting base 5 is a one-piece cast iron part, and the support blocks 51 at both ends of the top (made of polyurethane with arc-shaped grooves on the surface) are used to support the turbine flow meter 6. The curvature of the arc-shaped groove is adapted to the housing of the turbine flow meter 6, and the anti-slip rubber pad is bonded in the groove to prevent the flow meter from slipping when placed, and at the same time to buffer the minor vibrations during the detection process.

[0040] In this embodiment, a lifting frame 34 is also fixed on one side of the support platform 3, and a roller is rotatably mounted on the top of the lifting frame 34, with the outer wall of the exhaust pipe 41 in contact with the roller.

[0041] The idler roller provides support, greatly reducing friction during movement, allowing the thrust of cylinder 76 to be used more effectively for docking rather than overcoming gravitational friction.

[0042] In this embodiment, the fixing mechanism 7 includes gears 71 rotatably mounted on both ends of the top of the fixing plate 33. Guide rods 72 are fixed on both sides of the top of the fixing plate 33 located on the gears 71. Racks 73 are slidably engaged on both guide rods 72, and both racks 73 mesh with the gears 71.

[0043] Two racks 73 located inside the gear 71 are respectively fixedly connected to one end of a first connecting rod 74. Two racks 73 located outside the gear 71 are respectively fixedly connected to one end of a second connecting rod 741. One end of the two first connecting rods 74 is fixedly connected to a first mounting bracket 75. A moving ring 751 is fixedly connected to the first mounting bracket 75. The moving ring 751 slides on the outer wall of the exhaust pipe 41. One end of the two second connecting rods 741 passes through the moving groove 31 and is fixedly connected to a second mounting bracket 77. A fixing ring 771 is fixedly connected to the second mounting bracket 77. One end of the top of the support platform 3 is fixedly connected to a cylinder 76. There are two cylinders 76, and their moving ends are both fixed to the second mounting bracket 77.

[0044] Among them, a rotating shaft is fixed on the center hole of gear 71. The rotating shaft is rotatably mounted on the bearing seat on the top of the fixed plate 33 through a deep groove ball bearing to ensure flexible rotation without jamming.

[0045] Two cylinders 76 (model SC80×300, working pressure 0.4-0.6MPa) are symmetrically fixed at one end of the top of the support platform 3. Their moving ends are bolted to the second mounting bracket 77 through floating joints to ensure smooth thrust transmission and prevent the second mounting bracket 77 from being tilted under force. A synchronization valve is installed in the air supply line for the two cylinders 76, which can ensure that the compressed air flow distributed to the two cylinders is consistent, thereby ensuring that the extension speed of the piston rod is consistent from the source.

[0046] In this embodiment, a plurality of limiting holes 731 are equidistantly provided on the rack 73 along its length direction.

[0047] The design of multiple limiting holes 731 allows this device to be used with turbine flow meters of more lengths.

[0048] In this embodiment, the limiting mechanism 8 includes a support frame 81 fixed to the top of the fixed plate 33. An electric push rod 82 is also fixed to the top of the fixed plate 33. The moving end of the electric push rod 82 passes through the top plate of the support frame 81 and is fixed to a lifting plate 83. Four limiting rods 84 are fixed to the bottom of the lifting plate 83. The limiting rods 84 pass through the support frame 81 and extend into the limiting hole 731.

[0049] In this embodiment, the support frame 81 is shaped like an inverted "U". A through hole 811 is provided in the middle of the top of the support frame 81, and a round hole 812 is also provided in the top of the top of the support frame 81. There are four round holes 812. The moving end of the electric push rod 82 passes through the through hole 811, and the limiting rod 84 is in clearance fit with the round hole 812.

[0050] In this embodiment, the clamping mechanism 9 includes two fixing rods 91 fixed on both sides of the lifting plate 83 respectively. The two fixing rods 91 on the same side are fixedly connected to the lifting frame 92. The top of the lifting frame 92 passes through the through hole 32 and is fixedly connected to the connecting frame 93. The bottom of the connecting frame 93 is fixedly connected to the first locking block 94.

[0051] The top of the fixed plate 33 is fixedly connected to the fixed frame 95 below the two lifting frames 92. The vertical rods at both ends of the fixed frame 95 are fixedly connected to the baffles 951. The vertical rods at both ends of the fixed frame 95 are slidably connected to the connecting plates 952. The connecting plates 952 are located above the baffles 951. The connecting plates 952 on both vertical rods are fixedly connected to the second locking block 96. The vertical rods on both sides of the fixed frame 95 are horizontally fixedly connected to the round rods 97. The round rods 97 are rotatably connected to the L-shaped rods 971. The L-shaped rods 971 are L-shaped. The vertical end of the L-shaped rods 971 abuts against the bottom of the second locking block 96. The other end of the L-shaped rods 971 is rotatably connected to the connecting rods 972. One end of the connecting rods 972 is rotatably connected to the connecting block 973. One end of the connecting block 973 is fixed to the lifting frame 92.

[0052] In this embodiment, both the first card block 94 and the second card block 96 are provided with card slots, and rubber pads are provided in the card slots. The connecting plate 952 is provided with sliding holes that slide with the vertical rods on both sides of the fixing frame 95. The L-shaped rod 971 is provided with rotating holes that rotate with the round rod 97.

[0053] The slot has an arc-shaped structure (the arc is compatible with the flange of the turbine flow meter 6), and a rubber buffer pad is bonded inside the slot to prevent scratching the flange surface during clamping.

[0054] The width of the slot is adapted to the sum of the widths of the moving ring 751 and the turbine flow meter 6 flange, as well as the sum of the widths of the turbine flow meter 6 and the flange at one end of the exhaust pipe, thereby ensuring stability after the slot is engaged.

[0055] Workflow of this invention: When the industrial gas flow rate detection device designed using this scheme is running, the first step is to connect an external power supply and control switch to the electrical equipment in the device: Place the turbine flow meter 6 to be tested on the two supports 51 of the mounting base 5, ensuring that the input end of the turbine flow meter 6 is aligned with the stepped interface of the vent pipe 4 and the output end is aligned with the interface of the exhaust pipe 41. Then move the turbine flow meter 6 so that one end is inserted into the stepped interface of the vent pipe 4. At this time, there is a certain gap between the moving ring 751 and the flange at one end of the turbine flow meter 6. Then, simultaneously start the two cylinders 76. The moving end of the cylinder 76 pushes the second mounting bracket 77 to move towards the turbine flow meter 6, thereby causing the exhaust pipe 41 to move towards the turbine flow meter 6. At the same time, the second mounting bracket 77... The frame 77 drives the two outer racks 73 to slide along the guide rod 72. Since the racks 73 mesh with the gears 71, the outer racks 73 drive the gears 71 to rotate when they move, which in turn drives the two inner racks 73 to slide in opposite directions synchronously. The inner racks 73 drive the moving ring 751 to move towards the turbine flow meter 6 through the first connecting rod 74. The moving ring 751 on the first mounting frame 75 abuts against the flange on one side of the turbine flow meter 6, and the flange on the exhaust pipe 41 abuts against the flange on the other side of the turbine flow meter 6, thus achieving the initial fixation of the turbine flow meter 6 and the pipeline. The cylinder 76 is then closed and its moving end is locked.

[0056] The electric push rod 82 of the limit mechanism 8 is activated. The moving end of the electric push rod 82 drives the lifting plate 83 to descend vertically. Simultaneously, the lifting plate 83 drives the four limit rods 84 to descend along the round hole 812 of the support frame 81. The limit rods 84 are inserted into the limit hole 731 of the rack 73, locking the relative position of the rack 73 and the gear 71, eliminating the meshing gap between the gear 71 and the rack 73, and ensuring that the docking position of the vent pipe 4, the exhaust pipe 41 and the turbine flow meter 6 is accurate and without deviation, avoiding displacement caused by vibration during the detection process.

[0057] As the lifting plate 83 descends, the lifting frame 92 descends synchronously via the fixed rods 91 on both sides: On one hand, the lifting frame 92 moves the first locking block 94 downwards via the connecting frame 93 until the arc-shaped groove of the first locking block 94 fits against the top of the flanges on both sides of the turbine flow meter 6; on the other hand, the lifting frame 92 pulls the connecting rod 972 via the connecting block 973, and the connecting rod 972 drives the L-shaped rod 971 to rotate around the round rod 97. The vertical end of the L-shaped rod 971 pushes the second locking block 96 upwards, and the second locking block 96 slides upwards along the vertical rod of the fixed frame 95 via the connecting plate 952 until the arc-shaped groove of the second locking block 96 fits against the bottom of the flanges on both sides of the turbine flow meter 6. At this time, the first locking block 94 and the second locking block 96 form a "top and bottom wrapping" clamp on the flange. With the rubber buffer pad in the groove, it ensures a stable clamping and avoids hard contact damage to the flange, further improving the stability of the connection part.

[0058] During the flow rate detection phase, the valve of the diversion pipe 2 is opened, and the stable gas in the stagnation container 14 flows into the turbine flow meter 6 through the vent pipe 4. The gas drives the impeller inside the turbine flow meter 6 to rotate. The impeller speed is proportional to the gas flow rate. The turbine flow meter 6 converts the flow rate signal into an electrical signal output. At the same time, the vortex flow sensor 11 and the temperature and pressure instrument sensor 12 collect the flow rate, temperature, and pressure data output from the gas source in real time. Combined with the output signal of the turbine flow meter 6, the temperature and pressure compensation calculation is performed by the data processing system (not shown in the figure) to obtain an accurate gas flow rate value. After the detection is completed, the gas is discharged to the exhaust gas recovery device through the exhaust pipe 41.

[0059] The air source 1, flow regulating valve 5, vortex flow sensor 11, temperature and pressure instrument sensor 12, vacuum pump 13, cylinder 76, electric push rod 82, turbine flow meter 6, and control switch used in this invention are all existing known electrical devices, and all can be directly purchased and used on the market. Their structure, circuit, and control principle are all existing known technologies. Therefore, the structure, circuit, and control principle of the air source 1, flow regulating valve 5, vortex flow sensor 11, temperature and pressure instrument sensor 12, vacuum pump 13, cylinder 76, electric push rod 82, turbine flow meter 6, and control switch will not be described in detail here.

[0060] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A linkage-type industrial gas flow rate detection device, comprising a gas source (1), a vortex flow sensor (11) and a temperature and pressure instrument sensor (12) fixedly installed on the gas source (1), wherein a vacuum pump (13) is fixedly connected to one side of the gas source (1) via a pipe, and a stagnation container (14) is fixedly connected to the other side via a pipe, wherein a diverter pipe (2) is fixedly connected to the stagnation container (14), characterized in that: A support platform (3) is provided on one side near the diversion pipe (2). A fixing plate (33) is fixed at the bottom of the support platform (3) and there is a gap between the support platform (3) and the top of the support platform (3). A vent pipe (4) fixedly connected to the diversion pipe (2) is fixed at one end of the top of the support platform (3), and an exhaust pipe (41) is movably installed at the other end. A turbine flow meter (6) for detecting the flow rate of the gas flowing inside the vent pipe (4) is installed on the top of the support platform (3). One end of the turbine flow meter (6) is connected to the vent pipe (4), and the other end is connected to the exhaust pipe (41). The fixing plate (33) is provided with a fixing mechanism (7) for fixing the two ends of the turbine flow meter (6). One end of the fixing mechanism (7) is fixedly connected to the exhaust pipe (41), and the other end is slidably fitted on the vent pipe (4). The fixing plate (33) is provided with a limiting mechanism (8) for limiting the fixing mechanism (7), and the limiting mechanism (8) is provided with a clamping mechanism (9) for clamping the fixed turbine flow meter (6).

2. The linkage-type industrial gas flow rate detection device according to claim 1, characterized in that: The top of the support platform (3) is provided with four rectangular through slots (31) and through holes (32).

3. The linkage-type industrial gas flow rate detection device according to claim 2, characterized in that: The top of the support platform (3) is fixedly installed with a mounting base (5), and the top two ends of the mounting base (5) are respectively fixedly installed with a support block (51), and a turbine flow meter (6) is placed on the two support blocks (51).

4. The linkage-type industrial gas flow rate detection device according to claim 1, characterized in that: A lifting frame (34) is also fixed on one side of the support platform (3), and a roller is rotatably installed on the top of the lifting frame (34). The outer wall of the exhaust pipe (41) is in contact with the roller.

5. A linkage-type industrial gas flow rate detection device according to claim 1 or 2, characterized in that: The fixing mechanism (7) includes gears (71) rotatably mounted on both ends of the top of the fixing plate (33). The top of the fixing plate (33) is fixed with guide rods (72) on both sides of the gears (71). Both guide rods (72) are slidably fitted with racks (73), and both racks (73) mesh with the gears (71). Two racks (73) located inside the gear (71) are respectively fixedly connected to one end of a first connecting rod (74), and two racks (73) located outside the gear (71) are respectively fixedly connected to one end of a second connecting rod (741). One end of the two first connecting rods (74) is fixedly connected to a first mounting bracket (75). A moving ring (751) is fixedly connected to the first mounting bracket (75). The moving ring (751) slides on the outer wall of the exhaust pipe (41). One end of the two second connecting rods (741) passes through the moving groove (31) and is fixedly connected to a second mounting bracket (77). A fixing ring (771) is fixedly connected to the second mounting bracket (77). One end of the top of the support platform (3) is fixedly connected to a cylinder (76). There are two cylinders (76), and their moving ends are fixed on the second mounting bracket (77).

6. The linkage-type industrial gas flow rate detection device according to claim 5, characterized in that: The rack (73) has several limiting holes (731) equidistantly spaced along its length.

7. The linkage-type industrial gas flow rate detection device according to claim 1, characterized in that: The limiting mechanism (8) includes a support frame (81) fixed to the top of the fixed plate (33). An electric push rod (82) is also fixed to the top of the fixed plate (33). The moving end of the electric push rod (82) passes through the top plate of the support frame (81) and is fixed to a lifting plate (83). Four limiting rods (84) are fixed to the bottom of the lifting plate (83). The limiting rods (84) pass through the support frame (81) and extend into the limiting hole (731).

8. The linkage-type industrial gas flow rate detection device according to claim 7, characterized in that: The support frame (81) is shaped like an inverted "U". A through hole (811) is provided in the middle of the top of the support frame (81). A round hole (812) is also provided at the top of the support frame (81). There are four round holes (812). The moving end of the electric push rod (82) passes through the through hole (811). The limiting rod (84) is in clearance fit with the round hole (812).

9. The linkage-type industrial gas flow rate detection device according to claim 1, characterized in that: The clamping mechanism (9) includes two fixed rods (91) fixed on both sides of the lifting plate (83), and the two fixed rods (91) on the same side are fixedly connected to the lifting frame (92). The top of the lifting frame (92) is fixedly connected to the connecting frame (93), and the bottom of the connecting frame (93) is fixedly connected to the first locking block (94). The top of the fixed plate (33) is fixedly connected to a fixed frame (95) located below the two lifting frames (92) on both sides. A baffle (951) is fixedly connected to the vertical rods at both ends of the fixed frame (95). A connecting plate (952) is slidably connected to the vertical rods at both ends of the fixed frame (95). The connecting plate (952) is located above the baffle (951). The connecting plates (952) on both sides of the vertical rods are fixedly connected to a second locking block (96). The vertical rods on both sides of the fixed frame (95) are fixedly connected to the second locking block (96). A round rod (97) is fixedly connected horizontally to the rod. An L-shaped rod (971) is rotatably connected to the round rod (97). The L-shaped rod (971) is L-shaped. The vertical end of the L-shaped rod (971) abuts against the bottom of the second locking block (96). The other end of the L-shaped rod (971) is rotatably connected to a connecting rod (972). One end of the connecting rod (972) is rotatably connected to a connecting block (973). One end of the connecting block (973) is fixed to the lifting frame (92).

10. The linkage-type industrial gas flow rate detection device according to claim 9, characterized in that: The first card block (94) and the second card block (96) are both provided with card slots, and rubber pads are provided in the card slots. The connecting plate (952) is provided with sliding holes that slide with the vertical rods on both sides of the fixing frame (95). The L-shaped rod (971) is provided with rotating holes that rotate with the round rod (97).

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