Building pressure regulator comprehensive performance testing device

Abstract

The application discloses a building pressure regulator comprehensive performance testing device, which comprises a square tube frame, an air outlet locking tool and an air inlet locking tool are arranged on the square tube frame, the air inlet locking tool comprises a panel arranged on the square tube frame, a supporting plate is arranged on the panel through a slide rail, a fixing plate one is arranged on the supporting plate, a moving cylinder is further arranged on the panel, and an output end of the moving cylinder is connected to the supporting plate; the air outlet locking tool comprises a fixing plate two connected to the square tube frame, the fixing plate two and the square tube frame are provided with a supporting frame through a plurality of slide rails two, a positioning frame is arranged on the supporting frame, an inlet positioning plate is arranged on the fixing plate two, a positioning block is arranged on the inlet positioning plate, two symmetrical guide blocks are arranged on the positioning block, and a pressing cylinder is arranged on the fixing plate two. The application can realize automatic clamping of the pressure regulator, and the testing operation is controlled by an electronic device, so that the application is convenient and fast.

Description

TECHNICAL FIELD

[0001] The present application relates to building pressure regulator test related technical field, especially to a kind of building pressure regulator comprehensive performance testing device. BACKGROUND

[0002] Building pressure regulator refers to the work of bearing gas pressure, i.e. reducing the gas pressure to the required pressure of user, keeping stable, the working principle of pressure regulator is that gas enters into the pressure regulating chamber from inlet, when valve port is opened, gas enters into pressure reducing stage through the valve port, and gas pressure is controlled in the range required by user, in order to ensure the safe work of building pressure regulator, comprehensive performance testing work is needed.

[0003] At present, performance testing of assembled pressure regulator is mainly realized by manual adjustment of filter pressure reducing valve knob and outlet manual valve switch after manual clamping, pressure display is mechanical pointer reading, there is large error, and when adjusting flow, valve is manually rotated, and the precision is poor.

[0004] Therefore, we propose a kind of building pressure regulator comprehensive performance testing device to solve the above problems. SUMMARY

[0005] The present application relates to building pressure regulator test related technical field, especially to a kind of building pressure regulator comprehensive performance testing device.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0007] A kind of building pressure regulator comprehensive performance testing device, including square tube frame, the square tube frame is equipped with gas outlet locking tool and gas inlet locking tool, the gas inlet locking tool includes panel arranged on square tube frame, the panel is equipped with support plate on the panel by slide rail one, the support plate is equipped with fixed plate one, the panel is also equipped with motion cylinder, the output end of the motion cylinder is connected to support plate, the gas outlet locking tool includes fixed plate two connected to square tube frame, the fixed plate two and square tube frame are equipped with support frame in common through multiple slide rails two, the support frame is equipped with positioning frame, the fixed plate two is equipped with inlet positioning plate, the inlet positioning plate is equipped with positioning block, the positioning block is equipped with two symmetrically arranged guide blocks, the fixed plate two is equipped with down pressure cylinder, the output end of the down pressure cylinder is connected to support frame, the fixed plate one and fixed plate two are rotatably connected with rotating locking workpiece, the rotating locking workpiece is equipped with rotating structure.

[0008] As another technical scheme, the rotating structure comprises a rotating joint connected to the rotating locking workpiece, a belt wheel is arranged on the rotating locking workpiece, a synchronous belt is arranged on the belt wheel, motor sliding plates are arranged on the fixed plate one and the fixed plate two, servo motors are arranged on the two motor sliding plates, and the two synchronous belts are arranged on the output ends of the two servo motors respectively.

[0009] As another technical scheme, the square tube frame is provided with a protective shell, an alarm indicator lamp is arranged on the upper end face of the protective shell, and an operation screen and operation buttons are further arranged on the protective shell.

[0010] As another technical scheme, a plurality of universal wheels are arranged on the lower end side wall of the square tube frame, and a plurality of foot pads are further arranged on the lower end side wall of the square tube frame.

[0011] As another technical scheme, a plurality of triangular frames one are fixedly connected to the square tube frame, one ends of the plurality of triangular frames one away from the square tube frame are fixedly connected to the panel, a plurality of triangular frames two are fixedly connected to the support plate, and one ends of the plurality of triangular frames two away from the support plate are fixedly connected to the fixed plate one.

[0012] As another technical scheme, two front door plates are connected to one side of the protective shell close to the air outlet locking tool, and two rear door plates are connected to one side of the protective shell away from the air outlet locking tool.

[0013] Compared with the prior art, the beneficial effects of the present application are:

[0014] 1、In the present application, the user can complete the accurate placement of the building pressure regulator by means of the support frame, the positioning frame, the positioning block and the guide block, then the automatic clamping work of the building pressure regulator is completed by means of the rotating locking workpiece driven by the two servo motors through the synchronous belt structure, and then the test work is completed by means of the rotating joint, which greatly facilitates the user to use.

[0015] 2、In the present application, the user can control the test work by means of the operation buttons and the operation screen, and directly obtain the corresponding test results, which is more accurate and convenient than the traditional mechanical manual operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front perspective structural schematic view of a building pressure regulator comprehensive performance test device according to the present application;

[0017] Figure 2The reverse stereogram structure schematic diagram of a building pressure regulator comprehensive performance testing device is provided in the present application;

[0018] Figure 3 The square tube frame part stereogram structure schematic diagram of a building pressure regulator comprehensive performance testing device is provided in the present application;

[0019] Figure 4 The air outlet locking tool part stereogram structure schematic diagram of a building pressure regulator comprehensive performance testing device is provided in the present application;

[0020] Figure 5 The rotating structure part stereogram structure schematic diagram of a building pressure regulator comprehensive performance testing device is provided in the present application;

[0021] Figure 6 The testing system diagram of a building pressure regulator comprehensive performance testing device is provided in the present application;

[0022] Figure 7 The performance testing gas path diagram of a building pressure regulator comprehensive performance testing device is provided in the present application;

[0023] Figure 8 The static characteristic curve when the nominal outlet pressure set value is p2.int=3kPa;

[0024] Figure 9 The maximum leakage amount table of outer sealing and inner sealing.

[0025] In the figure: 1 square tube frame, 2 panel, 3 sliding rail one, 4 support plate, 5 fixed plate one, 6 moving cylinder, 7 fixed plate two, 8 sliding rail two, 9 support frame, 10 positioning frame, 11 rotating locking workpiece, 12 rotating joint, 13 pulley, 14 synchronous belt, 15 motor sliding plate, 16 servo motor, 17 protective shell, 18 alarm indicator light, 19 operation screen, 20 operation button, 21 positioning block, 22 guide block, 23 universal wheel, 24 pad foot, 25 tripod one, 26 tripod two, 27 front door plate, 28 rear door plate, 29 lower pressing cylinder, 30 inlet positioning plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0027] REFERENCE Figures 1-6The utility model provides a kind of building pressure regulator comprehensive performance testing device, including square tube frame 1, square tube frame 1 is equipped with protective shell 17, so it can effectively guarantee the safety and cleanliness of air inlet locking tool and air outlet locking tool in square tube frame 1 by protective shell 17, so that test work can be safely and cleanly completed, the precision of protection of test is guaranteed Protective shell 17 is connected with two front door plates 27 on the side close to air outlet locking tool, protective shell 17 is connected with two rear door plates 28 on the side away from air outlet locking tool, the setting of front door plate 27 and rear door plate 28 makes that user can conveniently open protective shell 17, then completes the repair and maintenance tool of air inlet locking work and air outlet locking tool etc.

[0028] The lower end side wall of square tube frame 1 is equipped with multiple universal wheels 23, and the lower end side wall of square tube frame 1 is also equipped with multiple pads 24, the setting of universal wheel 23 facilitates user to move the whole device, and the setting of pad 24 can effectively overcome the problem that universal wheel 23 is easy to move, and stably support the device when needed, so that the device can be stably placed, square tube frame 1 is equipped with air outlet locking tool and air inlet locking tool, air inlet locking tool includes panel 2 arranged on square tube frame 1, support plate 4 is arranged on panel 2 through slide rail one 3, fixed plate one 5 is arranged on support plate 4, square tube frame 1 is fixedly connected with multiple triangular supports one 25, one end of multiple triangular supports one 25 away from square tube frame 1 is fixedly connected on panel 2, support plate 4 is fixedly connected with multiple triangular supports two 26, one end of multiple triangular supports two 26 away from support plate 4 is fixedly connected on fixed plate one 5, so that the fixing work of panel 2 and fixed plate one 5 is more stable, panel 2 is also equipped with motion cylinder 6, the output end of motion cylinder 6 is connected on support plate 4, air outlet locking tool includes fixed plate two 7 connected on square tube frame 1, and support frame 9 is arranged by multiple slide rail two 8 in common with square tube frame 1 and fixed plate two 7.

[0029] The support frame 9 is provided with a positioning frame 10, the fixed plate two 7 is provided with an import positioning plate 30, the import positioning plate 30 is provided with a positioning block 21, the positioning block 21 is provided with two symmetrical guide blocks 22, the fixed plate two 7 is provided with a lower pressing cylinder 29, the output end of the lower pressing cylinder 29 is connected to the support frame 9, the fixed plate one 5 and the fixed plate two 7 are both rotatably connected with a rotary locking workpiece 11, the two rotary locking workpieces 11 are both provided with a rotating structure, the rotating structure comprises a rotary joint 12 connected to the rotary locking workpiece 11, the rotary locking workpiece 11 is provided with a belt wheel 13, the belt wheel 13 is provided with a synchronous belt 14, the fixed plate one 5 and the fixed plate two 7 are both provided with a motor sliding plate 15, the two motor sliding plates 15 are both provided with a servo motor 16, the two ends of the two synchronous belts 14 away from the two belt wheels 13 are respectively arranged on the output ends of the two servo motors 16, so that the rotary locking workpiece 11 can be conveniently driven to rotate, and the relative movement of the rotary locking workpiece 11 and the building pressure regulator inlet and outlet can be matched, so that the rotary locking connection work of the building pressure regulator inlet and outlet can be automatically completed, and the user's test work is greatly facilitated.

[0030] In the use process of the present application, first, the building pressure regulator to be detected is moved to the panel 2, so that the outlet of the building pressure regulator is inserted into the support frame 9 and the positioning frame 10, and the inlet of the building pressure regulator is pushed, so that the inlet of the building pressure regulator is inserted between the two guide blocks 22, then after completing the positioning and placing work of the building pressure regulator, the start button can be pressed, the lower pressing cylinder 29, the movement cylinder 6 and the two servo motors 16 start to work, first, the lower pressing cylinder 29 and the servo motor 16 in the outlet locking tool will work, at this time, the lower pressing cylinder 29 will control the support frame 9 and the positioning frame 10 to complete the descent through the output end, so that the building pressure regulator with the outlet clamped on the support frame 9 and the positioning frame 10 is lowered, and the servo motor 16 here will drive the corresponding belt wheel 13 to rotate through the corresponding synchronous belt 14, the rotating belt wheel 13 can drive the rotary locking workpiece 11 in the outlet locking tool to rotate, so that the rotary locking workpiece 11 rotates and cooperates with the outlet of the building pressure regulator to smoothly complete the connection of the outlet of the building pressure regulator and the rotary locking workpiece 11, then when the building pressure regulator is lowered to the specified position to complete the outlet connection, the inlet can be lowered to the specified position in the two guide blocks 22, then the inlet of the building pressure regulator can be aligned with the rotary locking workpiece 11 on the inlet locking tool;

[0031] At this time, the moving cylinder 6 will control the support plate 4 to move close to the building pressure regulator through the slide rail 3, so that the tripod 26 and the fixed plate 5 are close to the building pressure regulator, and then the rotating locking workpiece 11 arranged on the fixed plate 5 is close to the air inlet of the building pressure regulator, and the servo motor 16 in the air inlet locking tool will control the corresponding synchronous belt 14 to start rotating the tool, and then rotate through the corresponding pulley 13, so that the rotating locking workpiece 11 in the air inlet locking tool can rotate and approach the air inlet of the building pressure regulator, and then the rotating connection tool is completed. In this way, the air inlet and the air outlet of the building pressure regulator are connected and communicated, and the test tool can be smoothly carried out through the air pipe connected with the rotating joint 12. Such automatic clamping work greatly facilitates the user operation and use. Then the user can select the interface that needs to be tested, fill in the test standard data of the pressure regulator, click start test, wait for the program to run automatically, and then generate a test table. Then press the stop button to release the pressure regulator. The unqualified products are taken down for repair, and the qualified products are subjected to the next step. Compared with the traditional mechanical manual operation, it is much simpler and more convenient;

[0032] When testing the building pressure regulator, static characteristic curve testing, stable pressure accuracy level testing, closing pressure level testing, cut-off pressure testing, cut-off pressure level testing, and internal sealing testing are required.

[0033] For static characteristic factory inspection, four static characteristic curves should be drawn at two limit values of the import pressure range and two limit values of the export pressure range. The experimental steps are as follows: a. In the case of a flow of 0, the import pressure is set to the minimum import pressure, and then the flow is increased to be greater than the minimum flow under the import pressure. The pressure regulator is adjusted to the required export pressure; b. Adjust the import pressure to the maximum import pressure, increase the flow to be greater than the maximum flow under the current pressure, and then reduce the flow to make the pressure regulator close to the flow of 0. The range of the minimum flow and the maximum flow under the current pressure should be within the stable pressure accuracy range during the whole process; c. Reduce the flow to the closing of the pressure regulator. The time for reducing the flow should not be less than the response time of the pressure regulator. Measure the export pressure twice after 2 minutes of closing. The interval time between the two measurements should ensure that the maximum leakage change can be judged by the measuring instrument, which is the internal sealing test.

[0034] The calculation formula for stable pressure accuracy level testing is

[0035] In the formula: Δ+ is the positive deviation of the actual value of the export pressure from the set value, with the unit of megapascal;

[0036] Δ- is the negative deviation of the actual value of the export pressure from the set value, with the unit of megapascal;

[0037] P 2S — set pressure, unit: mega pascal;

[0038] The method for closing pressure level test is the maximum allowable value of the ratio of the difference between the actual closing pressure and the set closing pressure to the set pressure multiplied by 100%;

[0039] The method for internal sealing test is to reduce the flow to the closing of the pressure regulator in the maximum inlet pressure static characteristic detection, and the reducing time should not be less than the response time of the pressure regulator. The outlet pressure is measured twice after 2 minutes of closing, and the interval time between the two measurements should ensure that the measuring instrument can judge the change of the maximum leakage;

[0040] The method for testing the gas tightness of the cut-off valve seat is to detect the gas tightness of the cut-off valve seat: the cut-off valve is closed, the inlet pressure is 0.01 MPa and 1.1 times the maximum inlet pressure respectively for 1 minute without leakage;

[0041] The method for testing the accuracy of the cut-off valve is to first adjust the cut-off pressure set value by the worker, pressurize at the outlet, record the measured value of the cut-off pressure, and calculate whether the measured value is within the cut-off accuracy range;

[0042] The method for detecting the external sealing is the external reduction method, that is, slowly pressurize each pressure chamber to the specified test pressure, and measure twice during the pressure maintaining period. The interval between the two measurements should ensure that the total leakage value should meet the pressure drop that can be judged by the pressure measuring instrument. The leakage of each pressure chamber is calculated according to the national standard formula, and the total leakage meets the standard requirements of GB 27790;

[0043] The formula for calculating the external sealing leakage is,

[0044]

[0045] In the formula: Q i — the calculated leakage of a pressure chamber, unit: cubic meters per hour;

[0046] t— the interval time between the two measurements, unit: hours;

[0047] P n — reference pressure, unit: pascal;

[0048] V— the volume of the pressure chamber, unit: cubic meters;

[0049] ΔP— the corrected pressure drop, unit: pascal (Pa);

[0050] P1, P2— the pressure of the test medium in the pressure chamber at the first and second measurements, unit: pascal;

[0051] Pa 、P' a —Atmospheric pressure during the first and second measurements, in Pascals;

[0052] t1 and t2 represent the temperatures of the test medium inside the pressure chamber during the first and second measurements, respectively, in degrees Celsius.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A comprehensive performance testing device for building voltage regulators, comprising a square tube frame (1), characterized in that, The square tube frame (1) is provided with an air outlet locking fixture and an air inlet locking fixture. The air inlet locking fixture includes a panel (2) set on the square tube frame (1). A support plate (4) is provided on the panel (2) via a slide rail (3). A fixing plate (5) is provided on the support plate (4). A motion cylinder (6) is also provided on the panel (2). The output end of the motion cylinder (6) is connected to the support plate (4). The air outlet locking fixture includes a fixing plate (7) connected to the square tube frame (1). The fixing plate (7) and the square tube frame (1) are connected together via multiple slide rails (8). A support frame (9) is provided, a positioning frame (10) is provided on the support frame (9), an inlet positioning plate (30) is provided on the second fixing plate (7), a positioning block (21) is provided on the inlet positioning plate (30), two guide blocks (22) are provided on the positioning block (21) and arranged symmetrically, a pressing cylinder (29) is provided on the second fixing plate (7), the output end of the pressing cylinder (29) is connected to the support frame (9), and a rotating locking workpiece (11) is rotatably connected on both the first fixing plate (5) and the second fixing plate (7), and both rotating locking workpieces (11) are provided with a rotating structure; The rotating structure includes a rotary joint (12) connected to the rotating locking workpiece (11). The rotating locking workpiece (11) is provided with a pulley (13). The pulley (13) is provided with a synchronous belt (14). The first fixed plate (5) and the second fixed plate (7) are both provided with motor slide plates (15). The two motor slide plates (15) are both provided with servo motors (16). The ends of the two synchronous belts (14) away from the two pulleys (13) are respectively set on the output ends of the two servo motors (16).

2. The comprehensive performance testing device for building voltage regulators according to claim 1, characterized in that, The square tube frame (1) is provided with a protective shell (17), and an alarm indicator light (18) is provided on the upper surface of the protective shell (17). The protective shell (17) is also provided with an operation screen (19) and operation buttons (20).

3. The comprehensive performance testing device for building voltage regulators according to claim 1, characterized in that, The lower side wall of the square tube frame (1) is provided with multiple casters (23) and multiple feet (24).

4. The comprehensive performance testing device for building voltage regulators according to claim 1, characterized in that, Multiple tripods (25) are fixedly connected to the square tube frame (1). The ends of the multiple tripods (25) away from the square tube frame (1) are fixedly connected to the panel (2). Multiple tripods (26) are fixedly connected to the support plate (4). The ends of the multiple tripods (26) away from the support plate (4) are fixedly connected to the fixing plate (5).

5. The comprehensive performance testing device for building voltage regulators according to claim 2, characterized in that, The protective shell (17) has two front door panels (27) connected to the side of the air outlet locking fixture, and two rear door panels (28) connected to the side of the protective shell (17) away from the air outlet locking fixture.

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