Flowmeter seal detection device

Abstract

The application discloses a flowmeter sealing detection device, which comprises a workbench, a rotating assembly arranged on the workbench, equidistantly arranged placement plates on the rotating assembly, detection assemblies arranged on the placement plates, blocking assemblies symmetrically arranged at both ends of the placement plates, clamping mechanisms arranged between the two blocking assemblies on the same placement plate, the clamping mechanisms being used for sealing clamping of a flowmeter main body, an environment adjusting mechanism arranged on the workbench, the blocking assemblies being matched with the environment adjusting mechanism, and a ventilation mechanism arranged on the environment adjusting mechanism. Through structure optimization and function integration, the application solves the problem that traditional flowmeter sealing detection can only cover a single working condition and the results are insufficiently representative, realizes the cooperation of multi-environment simulation, continuous detection and high sealing efficiency, and significantly improves the comprehensiveness and reliability of flowmeter sealing performance detection.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of flowmeter sealing detection, and particularly relates to a flowmeter sealing detection device. BACKGROUND

[0002] A flowmeter is an instrument for indicating the flow rate of a measured fluid and / or the cumulative amount of fluid in a specified time interval, and its core function is to measure the instantaneous flow rate or cumulative total amount of fluid flow in a pipeline or open channel. In the production and manufacturing process of flowmeters, the sealing performance thereof needs to be verified by a special detection device. At present, traditional technical means such as pressure method and flow method are commonly used to complete the sealing detection in the industry.

[0003] However, the existing flowmeter sealing detection device has significant technical defects in actual application. Since flowmeters are widely used and need to adapt to the use requirements of all seasons throughout the year, the temperature range of their working environment is large, and the types of transported fluids vary significantly due to different application fields. The conventional detection technology only tests the sealing performance under room temperature environment, but in actual use, temperature changes will cause slight deformation of the flowmeter shell and sealing components. This deformation effect caused by changes in environmental temperature cannot be effectively identified and quantified in conventional detection, so the conventional detection results cannot truly reflect the sealing performance of the flowmeter under actual working conditions, and the representativeness and reliability of the detection results are obviously insufficient. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a flowmeter sealing detection device.

[0005] To achieve the foregoing purpose of the application, the technical solution adopted by the present application comprises: a workbench is provided, a rotating assembly is arranged on the workbench, placement plates are equidistantly arranged on the rotating assembly, a detection assembly is arranged on each placement plate, blocking assemblies are symmetrically arranged at both ends of each placement plate, a clamping mechanism is arranged between the two blocking assemblies on the same placement plate, the clamping mechanism is used for sealing clamping of a flowmeter body, an environmental adjustment mechanism is arranged on the workbench, the blocking assemblies are matched with the environmental adjustment mechanism, and an air passage mechanism is arranged on the environmental adjustment mechanism.

[0006] Preferably, the rotating assembly comprises a motor arranged at the bottom end of the workbench, a rotating shaft is fixedly arranged at the output end of the motor, the rotating shaft penetrates through the workbench and extends to the upper side, a rotating plate is arranged at the top end of the rotating shaft, and the placement plates are equidistantly arranged on the side surface of the rotating plate.

[0007] In the present application, the rotating assembly, the placement plates and the environmental adjustment mechanism can be used to conveniently simultaneously seal test multiple groups of flowmeters, improve the detection efficiency, and realize continuous testing.

[0008] Preferably, the detection assembly comprises mounting plates symmetrically arranged on the placement plate, and a thermal imaging sensor is arranged on the mounting plate.

[0009] Preferably, the environment adjusting mechanism comprises a cold environment test chamber and a hot environment test chamber arranged on the workbench, and the cold environment test chamber and the hot environment test chamber are fixedly connected to the workbench through the fixing frame; a vortex tube is arranged on the workbench through the fixing plate; a compressed gas inlet pipe is communicated with an output end of the vortex tube; a cold end of the vortex tube is communicated with the cold environment test chamber through a cold pipe; a cold exhaust pipe is arranged on a top of the cold environment test chamber; a hot end of the vortex tube is communicated with the hot environment test chamber through a hot pipe; and a hot exhaust pipe is arranged on a top of the hot environment test chamber.

[0010] In the application, the environment adjusting mechanism can simulate the temperature change of the flowmeter body in the actual use process, simulate the sealing condition in the real situation, ensure the comprehensive detection, and guarantee the measurement result.

[0011] Preferably, the plugging mechanism comprises vertical plates symmetrically arranged at two ends of the placement plate, and the cold environment test chamber and the hot environment test chamber are both provided with air grooves matched with the vertical plates; sealing strips are arranged on the placement plate and the vertical plates; the sealing strips are in interference fit with the cold environment test chamber and the hot environment test chamber; the sealing strips are provided with inflatable sealing bags; and the cold environment test chamber and the hot environment test chamber are provided with sealing connection grooves in interference fit with the inflatable sealing bags.

[0012] In the application, after the flowmeter body on the placement plate is rotated into the corresponding test chamber, the test chamber can be sealed conveniently by the plugging mechanism, the use environment can be simulated better, the detection is facilitated, and the flowmeter body can be rotated out after the subsequent test is completed.

[0013] Preferably, the clamping mechanism comprises mounting discs symmetrically arranged between the two vertical plates, and the end faces of the two mounting discs close to each other are both provided with plug-in columns, the plug-in columns are provided with sealing sleeves outside, the sealing sleeves are provided with sealing rings, the plug-in columns are used for plug-in sealing with the flowmeter body, one of the mounting discs is connected to any vertical plate through an electric push rod, the other mounting disc is fixedly connected to the other vertical plate through a connecting rod, and the plug-in column close to one end of the connecting rod is provided with an inflation assembly.

[0014] In the application, the flowmeter body can be clamped and fixed conveniently, and the inflation sealing is facilitated, so that the sealing property of the flowmeter body can be detected conveniently in cooperation with the detection assembly.

[0015] Preferably, the ventilation mechanism comprises a connecting pipe connected to the hot exhaust pipe, the connecting pipe is rotatably connected to a main pipe through a rotary joint, equidistantly arranged on a bottom end of the main pipe are branch pipes, and the branch pipes correspond to the placement plate one by one.

[0016] Preferably, the ventilation mechanism further comprises an inflation sealing tube in communication with the branch tube end, the inflation sealing tube extends into the placement plate, and the inflation sealing tube is provided with inflation ports at equal intervals, the inflation ports are in communication with the inflation sealing bag.

[0017] Preferably, the inflation assembly comprises an inflation test tube provided on one side of the inflation sealing tube, the inflation test tube is in communication with the branch tube, the inflation test tube is located inside the placement plate, and the end of the inflation test tube extends out of the placement plate, and the inflation test tube penetrates out of the placement plate and the plug-in column in sequence.

[0018] Preferably, the inflation sealing tube and the inflation test tube are provided with electric control valves and air release ports.

[0019] In the present application, the inflation sealing tube and the inflation test tube are provided with electric control valves and air release ports.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] (1) The flowmeter sealing detection device provided by the present application solves the problem of insufficient representativeness of traditional flowmeter sealing detection which can only cover a single working condition through structure optimization and function integration, realizes the cooperation of multi-environment simulation, continuous detection and high-efficiency sealing, and significantly improves the comprehensiveness and reliability of flowmeter sealing performance detection.

[0022] (2) The flowmeter sealing detection device provided by the present application realizes continuous sealing detection of multiple flowmeter bodies through the cooperative design of the rotating assembly and the multi-station placement plate. The rotating assembly drives the placement plate to rotate axially, so that the flowmeter body can enter different test environments such as normal temperature, low temperature and high temperature in sequence, avoiding the discontinuity of single-station detection and improving the coherence and overall efficiency of the detection process.

[0023] (3) The flowmeter sealing detection device provided by the present application can accurately simulate the extreme temperature environment that the flowmeter may encounter in actual use through the setting of cold and hot environment test chambers and the cold and hot shunting function of the vortex tube for compressed gas. This design makes up for the limitation of traditional detection which is only carried out at room temperature, so that the sealing performance test covers the temperature change range of real working conditions, ensuring that the detection result is more representative and has reference value. The inflation sealing bag provided on the sealing strip is in interference fit with the sealing connection groove of the test chamber, and the secondary sealing is realized through inflation, effectively avoiding the interference of external environment on internal detection during the test process, and ensuring the accuracy of sealing detection in the temperature simulation environment.

[0024] (4) The flowmeter sealing detection device provided by the application, the quick clamping and sealing of the flowmeter body by the clamping mechanism, the sealing sleeve and the sealing ring outside the plug-in column, which can adapt to flowmeter bodies of different diameters, improve the versatility of the equipment; at the same time, the plug-in sealing method avoids the sealing leaks that may be caused by the traditional fixed method, ensuring the isolation of the internal and external environment of the flowmeter before detection;

[0025] (5) The flowmeter sealing detection device provided by the application, the ventilation mechanism realizes centralized air supply for multiple placement plates through the layout of the main pipe and the branch pipe. The separate arrangement of the inflation sealing pipe and the inflation test pipe can not only strengthen the sealing effect of the plugging assembly through the inflation sealing bag, but also fill hot air into the flowmeter body, cooperate with the temperature distribution detection of the thermal imaging sensor, and accurately identify sealing defects. The design of the electric control valve and the air vent of the inflation assembly further simplifies the inflation and deflation operation, improves the automation degree and operation convenience of the detection process. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 is one of the overall schematic diagrams of the flowmeter sealing detection device in the present application;

[0028] Figure 2 is the second overall schematic diagram of the flowmeter sealing detection device in the present application;

[0029] Figure 3 is a partial structure schematic diagram of the flowmeter sealing detection device in the present application;

[0030] Figure 4 is a structure schematic diagram of the ventilation mechanism and the inflation assembly in the flowmeter sealing detection device in the present application;

[0031] Figure 5 is a structure schematic diagram of the placement plate and the flowmeter body in the flowmeter sealing detection device in the present application;

[0032] Figure 6 is a structure schematic diagram of the placement plate in the flowmeter sealing detection device in the present application;

[0033] Figure 7 is a partial structure schematic diagram of the plugging assembly, the ventilation mechanism and the inflation assembly in the flowmeter sealing detection device in the present application;

[0034] Figure 8 Figure 1 is a structural schematic diagram of the environment adjusting mechanism in the flowmeter sealing detection device of the present application.

[0035] Reference signs:

[0036] 11, workbench; 12, flowmeter main body; 13, cold environment test chamber; 14, hot environment test chamber; 15, fixing frame; 16, cold exhaust pipe; 17, hot exhaust pipe; 21, motor; 22, rotating shaft; 23, rotating plate; 31, placing plate; 32, vertical plate; 33, mounting plate; 34, thermal imaging sensor; 41, connecting pipe; 42, rotating joint; 43, main pipe; 44, branch pipe; 45, inflation sealing pipe; 46, inflation test pipe; 47, inflation port; 48, electric control valve; 49, deflation port; 51, compressed gas inlet pipe; 52, cold pipe; 53, hot pipe; 54, vortex pipe; 55, fixing plate; 61, electric push rod; 62, mounting disc; 63, connecting rod; 64, sealing sleeve; 65, sealing ring; 66, plug-in post; 71, sealing strip; 72, inflation sealing bag; 73, sealing connecting groove; 74, empty groove. DETAILED DESCRIPTION

[0037] In view of the deficiencies in the prior art, the present inventors have, through long-term research and a large number of practices, come up with the technical solution of the present application. The technical solution, its implementation process and principles will be further explained below in combination with the drawings in the embodiments of the present application and specific implementation cases.

[0038] It should be noted that the embodiments described below by reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application. The described embodiments are only some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, any alternative, modification, equivalent method and solution defined by the claims are covered by the spirit, principles and scope of the present application, and all other embodiments obtained by those of ordinary skill in the art without making creative efforts are within the scope of protection of the present application.

[0039] In the description of the present application, "first", "second", "third" and similar words do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "a" and similar words do not represent a quantity limit, but represent the existence of at least one. "Include" or "contain" and similar words mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0040] In the description of the present application, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, when using two sides, outer sides, up and down, and the like, it should be understood that they are only used for the convenience of understanding and description, considering that the structure can be facing other positions.

[0041] In the description of the present application, unless otherwise explicitly specified and limited, the technical terms or scientific terms used should be understood as the general meaning understood by those skilled in the art to which the present application belongs, and the terms "mounting", "connecting", "connecting" and the like should be understood in a broad sense, for example, it can be fixed connection, it can also be detachable connection, it can also be in contact connection or integral connection; for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] The embodiments of the present application aim to introduce and explain the structural composition of the flowmeter sealing detection device and the cooperation relationship between each component structure, unless otherwise specified, the size, material and manufacturing process of each component part suitable for the flowmeter sealing detection device in the embodiments of the present application can be selected according to the specific circumstances, and here is not particularly limited and explained.

[0043] Further, in order to make the public have a better understanding of the present application, in the following detailed description of the present application, some specific details are described in detail. The present application can also be completely understood without the description of these details by those skilled in the art.

[0044] Please refer to Figures 1-8, flowmeter sealing detection device, including the workbench 11, the workbench 11 is provided with rotating assembly, convenient to rotate and adjust, with the flowmeter main body 12 on the placement plate 31 axial rotation, can be rotated to different temperature environment and carry out sealing detection, according to the actual use situation simulation detection, ensure the accuracy of detection, in order to facilitate the rotation and adjustment, rotating assembly includes the motor 21 arranged at the bottom end of the workbench 11, the motor 21 output end is fixedly connected with the rotating shaft 22 through the shaft coupling, the rotating shaft 22 passes out of the workbench 11 and extends to the upper side, the rotating top is provided with the rotating plate 23, through the motor 21 work, with the rotating shaft 22 and the rotating plate 23 axial rotation, the rotating plate 23 equidistantly arranged on the side of the placement plate 31, for the placement plate 31 on the rotating plate 23, the preferred number is four groups, one group is normal temperature measurement, one group is low temperature measurement, one group is high temperature measurement, one group is removed after measurement, can simultaneously continuously test the sealing of flowmeter main body 12, improve the efficiency of detection, rotating assembly equidistantly arranged with the placement plate 31, the placement plate 31 is provided with detection assembly, the both ends of the placement plate 31 are symmetrically provided with the plugging assembly, the two plugging assemblies on the same placement plate 31 are provided with clamping mechanism, the clamping mechanism is used for the sealing clamping of flowmeter main body 12, the workbench 11 is provided with environment adjusting mechanism, the plugging assembly is matched with the environment adjusting mechanism, the environment adjusting mechanism is provided with ventilation mechanism, the detection assembly includes the mounting plate 33 symmetrically arranged on the placement plate 31, the mounting plate 33 is provided with thermal imaging sensor 34, which converts invisible infrared radiation into visual temperature distribution image, for the thermal imaging sensor 34, the number can be one, two or three groups, preferably two groups, facilitate the temperature difference imaging detection of the gas introduced and the outside when the flowmeter main body 12 is tested for sealing, more mature technology, not described here.

[0045] Please refer to Figures 1-8For the environmental conditioning mechanism, including the cold environment test chamber 13, the hot environment test chamber 14 arranged on the workbench 11, the cold environment test chamber 13, the hot environment test chamber 14 are fixedly connected with the workbench 11 through the fixing frame 15, and the workbench 11 is provided with a vortex tube 54 through a fixing plate 55. The vortex tube 54 is communicated with a compressed gas inlet pipe 51 at the output end, and the compressed gas (which can be delivered by an air compressor) is introduced through the compressed gas inlet pipe 51. The vortex tube 54 can generate hot gas and cold gas, which is a relatively mature technology and will not be described here. The cold end of the vortex tube 54 is communicated with the cold environment test chamber 13 through a cold pipe 52, and the top of the cold environment test chamber 13 is provided with a cold exhaust pipe 16. The hot end of the vortex tube 54 is communicated with the hot environment test chamber 14 through a hot pipe 53, and the top of the hot environment test chamber 14 is provided with a hot exhaust pipe 17. Thus, the cold environment test chamber 13 and the hot environment test chamber 14 can be correspondingly cooled and heated, simulating the sealing condition under different use environments, facilitating the simulation of real use conditions, ensuring the accuracy of the sealing test, and being representative. In order to seal the corresponding cold environment test chamber 13 and hot environment test chamber 14 during testing and ensure the accuracy during testing, the sealing mechanism includes vertical plates 32 symmetrically arranged at both ends of the placement plate 31. The cold environment test chamber 13 and the hot environment test chamber 14 are each provided with a hollow groove 74 matched with the vertical plate 32. The vertical plate 32 is clamped with the corresponding hollow groove 74, and the area of the vertical plate 32 is smaller than the area of the hollow groove 74. When the rotating plate 23 rotates with the placement plate 31 and the vertical plate 32, it is convenient to enter the corresponding hollow groove 74. In order to facilitate sealing after rotating to the appropriate test position, the placement plate 31 and the vertical plate 32 are each provided with a sealing strip 71. The sealing strip 71 is in interference fit with the cold environment test chamber 13 and the hot environment test chamber 14, facilitating sealing of the contact between the placement plate 31 and the vertical plate 32 and the cold environment test chamber 13 and the hot environment test chamber 14. The sealing strip 71 is made of elastic material, such as rubber, which facilitates sealing and subsequent rotation out. In order to further improve the sealing effect and facilitate subsequent rotation out, the sealing strip 71 is provided with an inflatable sealing bag 72, and the cold environment test chamber 13 and the hot environment test chamber 14 are provided with a sealing connection groove 73 in interference fit with the inflatable sealing bag 72. The inflatable sealing bag 72 can be inflated after preliminary sealing.

[0046] Please refer to Figures 1-8For the clamping mechanism, it comprises mounting discs 62 symmetrically arranged between the two vertical plates 32, the end faces of the two mounting discs 62 close to each other are each provided with a plug-in column 66, the plug-in column 66 is externally provided with a sealing sleeve 64, the sealing sleeve 64 is provided with a sealing ring 65, which is used for plug-in sealing with the flowmeter body 12, wherein the sealing sleeve 64 is a hollow circular truncated cone, which is further adapted to the plug-in fixing of the flowmeter body 12 of different pipe diameters, in order to ensure the sealing effect, a plurality of sealing rings 65 are arranged on the outside of the sealing sleeve 64, the number can be one, two or three groups, etc., preferably two groups, which can be sealed again without affecting the subsequent sealing test, one of the mounting discs 62 is connected with any vertical plate 32 through the electric push rod 61, and the other mounting disc 62 is fixedly connected with the other vertical plate 32 through the connecting rod 63, the plug-in column 66 close to one end of the connecting rod 63 is internally provided with an inflation assembly, one of the mounting discs 62 is connected with the vertical plate 32 through the electric push rod 61, and the electric push rod 61 can be extended and retracted to move and adjust the mounting disc 62, and then after the plug-in column 66 of the flowmeter body 12 and the connecting rod 63 and the mounting plate 33 are initially positioned, the electric push rod 61 is elongated to move the mounting plate 33 and the plug-in column 66, so that the flowmeter body 12 can be clamped and sealed, which is convenient for subsequent detection operation.

[0047] Please refer to Figures 1-8 , the ventilation mechanism comprises a connecting pipe 41 connected with the hot exhaust pipe 17, the connecting pipe 41 is rotationally connected with a main pipe 43 through a rotary joint 42 (a more mature technology, which will not be described here), the central axis of the main pipe 43 coincides with the central axis of the rotating plate 23, at this time, when the rotating plate 23 rotates with the main pipe 43, the top end of the main pipe 43 rotates in the rotary joint 42, which does not affect the rotation and does not affect the ventilation, the bottom end of the main pipe 43 is provided with a plurality of branch pipes 44 equidistantly on the peripheral surface, the branch pipes 44 correspond to the placement plates 31 one by one, and the number of the branch pipes 44 is preferably four groups, the ventilation mechanism further comprises an inflation sealing pipe 45 in communication with the end of the branch pipe 44, the inflation sealing pipe 45 extends into the inside of the placement plate 31, and a plurality of inflation openings 47 are equidistantly arranged on the inflation sealing pipe 45, the inflation openings 47 are in communication with the inflation sealing bag 72, which can facilitate the inflation of the inflation sealing bag 72, thereby ensuring the sealing effect, the inflation assembly comprises an inflation test pipe 46 arranged on one side of the inflation sealing pipe 45, the inflation test pipe 46 is in communication with the branch pipe 44, the inflation test pipe 46 is located inside the placement plate 31, and the end of the inflation test pipe 46 extends out of the placement plate 31, the inflation test pipe 46 successively penetrates the placement disc and the plug-in column 66, the hot air can be introduced into the inside of the flowmeter body 12 through the inflation test pipe 46 before testing, which is convenient for subsequent sealing detection with the thermal imaging sensor 34, and the inflation sealing pipe 45 and the inflation test pipe 46 are each provided with an electric control valve 48 and a gas vent 49, which can deflate the inflation sealing bag 72 after the test is completed, which is convenient for subsequent rotation and removal, and can also deflate the inside of the flowmeter body 12, which is convenient for subsequent removal and operation.

[0048] Working principle: the flowmeter body 12 to be tested is placed on the insertion column 66 near one end of the connecting rod 63, and is preliminarily positioned and fixed by cooperating with the sealing sleeve 64 and the sealing ring 65. The electric control valve 48 on the inflation test pipe 46 is opened, hot air in the hot exhaust pipe 17 is introduced into the branch pipe 44 through the connecting pipe 41, the rotary joint 42 and the main pipe 43, and then the air in the flowmeter body 12 is discharged through the inflation test pipe 46. Then the electric push rod 61 is extended, the mounting disc 62 is moved, and then the other end of the flowmeter body 12 can be inserted and sealed through the other insertion column 66 and the sealing sleeve and the sealing ring 65. A certain amount of hot air is continuously introduced, the atmospheric pressure in the flowmeter body 12 is greater than that of the external environment, and then the electric control valve 48 is closed to stop inflation. Through the working of the thermal imaging sensor 34, the flowmeter body 12 after sealing inflation can be detected. At this time, the internal temperature is higher than that of the external environment. At this time, the sealing effect under the normal temperature environment is tested. Whether there is air leakage can be observed by imaging and displayed by the thermal imaging sensor 34. After the test is completed, the motor 21 works, the rotating shaft 22 and the rotating plate 23 are rotated, the placing plate 31 is rotated, the flowmeter body 12 under the normal temperature test is rotated to the cold environment test chamber 13. After being rotated into the cold environment test chamber 13, the vertical plate 32 cooperates with the sealing strip 71 to preliminarily block the air slot 74 and the bottom. Then the electric control valve 48 on the inflation sealing pipe 45 is opened, hot air is introduced into the inflation sealing pipe 45, and then introduced into the inflation sealing capsule 72 through the inflation port 47, and the sealing is completed by cooperating with the sealing connection groove 73. At the same time, the compressed gas inlet pipe 51 introduces compressed gas into the vortex pipe 54, and the cold gas is introduced into the cold environment test chamber 13 through the cold pipe 52. The sealing condition under the low temperature environment can be simulated, and the sealing property from high temperature to low temperature environment can be simulated. After the test in the cold environment test chamber 13, the flowmeter body 12 on the rear placing plate 31 is tested for sealing at normal temperature. After the test is completed, the gas in the inflation sealing capsule 72 is discharged through the air outlet 49 on the inflation sealing pipe 45, and the sealing clamping with the sealing connection groove 73 is lost. Through the continuous rotation of the motor 21, the flowmeter body 12 in the cold environment test chamber 13 can be rotated into the hot environment test chamber 14, and the flowmeter body 12 under normal temperature test is rotated into the hot environment test chamber 14. The above operation is repeated, and the hot gas is introduced into the hot environment test chamber 14 through the vortex pipe 54. At this time, the temperature inside the flowmeter body 12 in the hot environment test chamber 14 is lower than that in the hot environment test chamber 14. The sealing property under high temperature environment and from low temperature to high temperature environment can be simulated. After the test is completed, the flowmeter body 12 is rotated out of the hot environment test chamber 14, the gas in the flowmeter body 12 after the test is discharged through the air outlet 49 on the inflation test pipe 46, the electric push rod 61 is retracted, the insertion column 66 is moved out of the flowmeter body 12, and the sealing clamping is lost. The tested flowmeter can be taken off. Through the four groups of placing plates 31 arranged,Normal temperature test, low temperature test, high temperature test and test removal conveying four synchronous operations can be carried out, and the test efficiency is improved.

[0049] It should be understood that the above embodiments are only to illustrate the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and it cannot be considered that the specific implementation of the present application is limited to these descriptions. For ordinary skilled in the art to which the present application belongs, without departing from the concept of the present application, some simple deductions or substitutions can be made, and any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A flow meter sealing test device, comprising a workbench (11), characterized in that: A rotating assembly is provided on the workbench (11), and a placement plate (31) is equidistantly arranged on the rotating assembly. A detection assembly is provided on the placement plate (31), and a sealing assembly is symmetrically arranged at both ends of the placement plate (31). A clamping mechanism is provided between the two sealing assemblies on the same placement plate (31). The clamping mechanism is used to seal and clamp the flow meter body (12). An environmental adjustment mechanism is provided on the workbench (11). The sealing assembly is matched with the environmental adjustment mechanism. A ventilation mechanism is provided on the environmental adjustment mechanism. The clamping mechanism includes mounting plates (62) symmetrically arranged between two vertical plates (32). The end faces of the two mounting plates (62) that are close to each other are provided with plug-in posts (66). A sealing sleeve (64) is provided on the outside of the plug-in post (66). A sealing ring (65) is provided on the sealing sleeve (64) for plug-in sealing with the flow meter body (12). One of the mounting plates (62) is connected to any vertical plate (32) through an electric push rod (61), and the other mounting plate (62) is fixedly connected to another vertical plate (32) through a connecting rod (63). An inflation component is provided in the plug-in post (66) near the end of the connecting rod (63). The ventilation mechanism includes a connecting pipe (41) connected to the hot exhaust pipe (17), and the connecting pipe (41) is rotatably connected to a main pipe (43) via a rotary joint (42). The bottom circumferential side of the main pipe (43) is provided with branch pipes (44) at equal intervals, and the branch pipes (44) correspond one-to-one with the placement plate (31). The ventilation mechanism also includes an inflation sealing pipe (45) connected to the end of the branch pipes (44). The inflation sealing pipe (45) extends into the interior of the placement plate (31), and the inflation sealing pipe (45) is provided with inflation ports (47) at equal intervals. The inflation ports (47) are connected to the inflation sealing bladder (72). The inflation assembly includes an inflation test tube (46) disposed on one side of the inflation sealing tube (45). The inflation test tube (46) is connected to the branch tube (44). The inflation test tube (46) is located inside the placement plate (31), and the end of the inflation test tube (46) extends out of the placement plate (31). The inflation test tube (46) passes through the placement plate and the plug-in post (66) in sequence.

2. The flow meter sealing detection device according to claim 1, characterized in that: The rotating assembly includes a motor (21) located at the bottom of the workbench (11), a rotating shaft (22) fixedly provided at the output end of the motor (21), the rotating shaft (22) passing through the workbench (11) and extending upward, a rotating plate (23) provided at the top of the rotating assembly, and the placement plate (31) provided at equal intervals on the circumferential side of the rotating plate (23).

3. The flow meter sealing detection device according to claim 2, characterized in that: The detection component includes a mounting plate (33) symmetrically arranged on the placement plate (31), and a thermal imaging sensor (34) is provided on the mounting plate (33).

4. The flow meter sealing detection device according to claim 1 or 3, characterized in that: The environmental control mechanism includes a cold environment test chamber (13) and a hot environment test chamber (14) set on the workbench (11). The cold environment test chamber (13) and the hot environment test chamber (14) are fixedly connected to the workbench (11) through a fixing frame (15). A vortex tube (54) is provided on the workbench (11) through a fixing plate (55). The output end of the vortex tube (54) is connected to a compressed gas inlet pipe (51). The cold end of the vortex tube (54) is connected to the cold environment test chamber (13) through a cold pipe (52). A cold exhaust pipe (16) is provided on the top of the cold environment test chamber (13). The hot end of the vortex tube (54) is connected to the hot environment test chamber (14) through a hot pipe (53). A hot exhaust pipe (17) is provided on the top of the hot environment test chamber (14).

5. The flow meter sealing detection device according to claim 4, characterized in that: The sealing assembly includes vertical plates (32) symmetrically arranged at both ends of the placement plate (31). The cold environment test chamber (13) and the hot environment test chamber (14) are both provided with slots (74) that match the vertical plates (32). The placement plate (31) and the vertical plates (32) are both provided with sealing strips (71). The sealing strips (71) are interference-fitted with the cold environment test chamber (13) and the hot environment test chamber (14). The sealing strips (71) are provided with inflatable sealing bags (72). The corresponding positions of the cold environment test chamber (13) and the hot environment test chamber (14) are provided with sealing connection slots (73) that are interference-fitted with the inflatable sealing bags (72).

6. The flow meter sealing detection device according to claim 5, characterized in that: Both the inflation sealing tube (45) and the inflation test tube (46) are equipped with an electric control valve (48) and an air vent (49).

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