Burst pressure gauge testing device

Abstract

The utility model discloses a burst pressure gauge calibrating device, including pressure generator, electric control valve, buffer tank, solenoid valve and pressure standard gauge through pipeline connection in proper order still include pressure -relief valve, and solenoden valve is connected with pressure standard gauge, pressure -relief valve through three -way pipeline A, and the first interface of three -way pipeline A connects solenoid valve, and the second interface connects pressure standard gauge and burst pressure gauge, and the third interface connects pressure -relief valve. The utility model burst pressure gauge calibrating device realizes ladder pre -pressing through pressure generator, electric control valve, buffer tank and solenoid valve to reach the effective simulation to actual dynamic working condition, can truly reflect the instrument working condition.

Description

Technical Field

[0001] This utility model belongs to the field of instrument calibration technology, and relates to a calibration device for burst pressure gauges. Background Technology

[0002] The highest pressure reached within the cylinder during diesel engine combustion reflects the combustion intensity and is closely related to engine load, combustion efficiency, and mechanical load (connecting rod, bearing, cylinder head bolt stress, etc.). Diesel engine combustion pressure measurement is a crucial step in engine diagnostics, performance optimization, and development; its core is the accurate measurement of the highest pressure generated during the combustion process within the cylinder.

[0003] Currently, diesel engine burst pressure measurement is mainly achieved through direct measurement using mechanical burst pressure gauges. The main principle involves adding a specially designed check valve to the front end of the mechanical pressure gauge, converting the multi-stroke burst pressure into the peak pressure of the gauge. However, this type of burst pressure gauge measurement is primarily limited to static pressure conditions, presenting two problems. First, static and dynamic operating conditions differ; diesel engine cylinders are prone to carbon buildup, and calibration under static conditions cannot accurately reflect the instrument's operating status, leading to measurement errors. Second, under static measurement, the check valve generates pressure loss, affecting measurement accuracy. Finally, some related calibration devices only rely on manual control of mechanical valve assemblies, resulting in simple assembly, poor pressure control, and instability. Utility Model Content

[0004] The purpose of this invention is to provide a calibration device for burst pressure gauges, which solves the problem that existing calibration devices can only measure the static pressure condition of burst pressure gauges and cannot truly reflect the working state of the instrument, thus causing measurement errors.

[0005] The technical solution adopted by this utility model is a burst pressure gauge calibration device, which includes a pressure generator, an electric control valve, a buffer tank, a solenoid valve and a pressure standard gauge connected in sequence through pipelines. It also includes a pressure relief valve. The solenoid valve is connected to the pressure standard gauge and the pressure relief valve through a three-way pipe A. The first port of the three-way pipe A is connected to the solenoid valve, the second port is connected to the pressure standard gauge and the burst pressure gauge, and the third port is connected to the pressure relief valve.

[0006] The pressure generator is connected to an electronic controller.

[0007] The electrically controlled valve is a gas booster valve.

[0008] The electrically controlled valve is a piston-type gas booster valve.

[0009] The solenoid valve is a servo-driven solenoid booster valve.

[0010] The solenoid valve is connected to an electronic control device.

[0011] The second port of T-pipe A is connected to the pressure standard gauge and the burst pressure gauge through T-pipe B. One port of T-pipe B is connected to the second port of T-pipe A, and the other two ports are connected to the pressure standard gauge and the burst pressure gauge respectively.

[0012] The connections between pipelines and pressure generators, electric control valves, buffer tanks, solenoid valves, pressure gauges, and pressure relief valves are all threaded connections.

[0013] The beneficial effects of this invention are that by assembling a pressure generator, an electric control valve, a buffer tank, a solenoid valve, a pressure standard gauge, and a pressure relief valve into a burst pressure gauge calibration device, it is possible to achieve stepped pre-pressure, precisely control the pre-stored pressure, and release pressure in a short time to reach simulated operating conditions. This makes the burst pressure gauge calibration process closer to actual operating conditions, improving the accuracy of the calibration results, facilitating timely adjustment of diesel engine combustion parameters, and promoting coordinated operation between diesel engine cylinders. This contributes to improving the quality, efficiency, and service life of diesel engine maintenance, greatly promoting the manufacturing of high-end equipment in my country's heavy industries such as large ships and locomotives. Simultaneously, it further improves the combustion efficiency of diesel engines, reduces carbon emissions, and achieves low-carbon, energy-saving, and green development. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the burst pressure gauge calibration device of this utility model.

[0015] In the diagram, 1. Pressure generator, 2. Electric control valve, 3. Buffer tank, 4. Solenoid valve, 5. Pressure relief valve, 6. Burst pressure gauge, 7. Pressure standard gauge, 8. Electronic control device. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0017] Example 1 See Figure 1 A burst pressure gauge calibration device includes a pressure generator 1, an electric control valve 2, a buffer tank 3, a solenoid valve 4, and a pressure standard gauge 7 connected in sequence via pipelines. It also includes a pressure relief valve 5. The solenoid valve 4 is connected to the pressure standard gauge 7 and the pressure relief valve 5 via a three-way pipe A. The first port of the three-way pipe A is connected to the solenoid valve 4, the second port is connected to the pressure standard gauge 7 and the burst pressure gauge 6, and the third port is connected to the pressure relief valve 5.

[0018] Pressure generator 1 is used to generate and control pressure. The fully automatic pressure generator selected in this embodiment has high control accuracy and fast pressure stability, which is suitable for the periodic calibration needs in industry.

[0019] The electric control valve 2 is a piston-type booster valve. The electric control valve 2 uses a stepped increasing piston booster system to gradually increase the pressure of the air. In conjunction with the pressure generator 1, it achieves precise control of the pre-stored pressure.

[0020] Buffer tank 3 is used to store air, ensuring a smooth gas flow and preventing gas supply interruptions during the pressure gauge calibration process.

[0021] Solenoid valve 4 is used to control the air intake of pressure standard gauge 7 and burst pressure gauge 6. By controlling the opening and closing time of solenoid valve 4, the pre-stored pressure in buffer tank 3 is quickly released into the burst pressure gauge pipeline under test, thereby achieving effective simulation of actual working conditions.

[0022] Pressure standard table 7 is used to calibrate the burst pressure gauge under test.

[0023] Pressure relief valve 5 is used to release the detected pressure.

[0024] When using the burst pressure gauge calibration device of this utility model, the pressure generator 1 is electrically pressurized by the electronic controller, and the pressure is pre-stored in the buffer tank 3 by the electric control valve 2. The electronic controller must have the function of fine adjustment of the pre-pressure. The air is gradually pressurized by the step-by-step piston pressurization of the electric control valve 2. By cooperating with the electronic controller, the pre-stored pressure is precisely controlled. The solenoid valve 4 is quickly opened to release the pre-stored pressure into the pipeline of the burst pressure gauge 6 under test. The instantaneous burst pressure value of the pipeline of the burst pressure gauge under test reaches 14MPa in a short time. The burst pressure gauge under test is calibrated by the pressure standard gauge 7. After the calibration is completed, the test pressure is released by opening the pressure relief valve 5.

[0025] This utility model burst pressure gauge calibration device achieves stepped pre-pressure and precise control through pressure generator 1 and electric control valve 2, releasing pressure in a short time to reach simulated working conditions. This makes the burst pressure gauge calibration process closer to actual working conditions and improves the accuracy of the calibration results.

[0026] Example 2 A burst pressure gauge calibration device includes a pressure generator 1, an electric control valve 2, a buffer tank 3, a solenoid valve 4, and a pressure standard gauge 7 connected in sequence via pipelines. It also includes a pressure relief valve 5. The solenoid valve 4 is connected to the pressure standard gauge 7 and the pressure relief valve 5 via a three-way pipe A. The first port of the three-way pipe A is connected to the solenoid valve 4, the second port is connected to the pressure standard gauge 7 and the burst pressure gauge 6, and the third port is connected to the pressure relief valve 5.

[0027] Pressure generator 1 is connected to an electronic controller to control the electric pressure generation process of the pressure generator and make minor adjustments to the pre-stored pressure.

[0028] The electric control valve 2 is a piston-type booster valve. The electric control valve 2 uses a stepped increasing piston booster system to gradually increase the pressure of the air. In conjunction with the pressure generator 1, it achieves precise control of the pre-stored pressure.

[0029] Buffer tank 3 is used to store air, ensuring a smooth gas flow and preventing gas supply interruptions during the pressure gauge calibration process.

[0030] Solenoid valve 4 is used to control the air intake of pressure standard gauge 7 and burst pressure gauge 6. By controlling the opening and closing time of solenoid valve 4, the pre-stored pressure in buffer tank 3 is quickly released into the burst pressure gauge pipeline under test, thereby achieving effective simulation of actual working conditions.

[0031] Pressure standard table 7 is used to calibrate the burst pressure gauge under test.

[0032] Pressure relief valve 5 is used to release the detected pressure.

[0033] When using the burst pressure gauge calibration device of this utility model, the pressure generator 1 is electrically pressurized by the electronic controller, and the pressure is pre-stored in the buffer tank 3 by the electric control valve 2. The electronic controller must have the function of fine adjustment of the pre-pressure. The air is gradually pressurized by the step-by-step piston pressurization of the electric control valve 2, and the pre-stored pressure is precisely controlled by the electronic controller. The solenoid valve 4 is quickly opened to release the pre-stored pressure into the pipeline of the burst pressure gauge 6 under test. The instantaneous burst pressure value of the pipeline of the burst pressure gauge under test reaches 14MPa in a short time. The burst pressure gauge under test is calibrated by the pressure standard gauge 7. After calibration, the test pressure is released by opening the pressure relief valve 5.

[0034] Example 3 A burst pressure gauge calibration device includes a pressure generator 1, an electric control valve 2, a buffer tank 3, a solenoid valve 4, and a pressure standard gauge 7 connected in sequence via pipelines. It also includes a pressure relief valve 5. The solenoid valve 4 is connected to the pressure standard gauge 7 and the pressure relief valve 5 via a three-way pipe A. The first port of the three-way pipe A is connected to the solenoid valve 4, the second port is connected to the pressure standard gauge 7 and the burst pressure gauge 6, and the third port is connected to the pressure relief valve 5.

[0035] Pressure generator 1 is connected to an electronic controller, and electric control valve 2 is a gas booster valve that pressurizes the air step by step. It works in conjunction with the electronic controller of the pressure generator to achieve precise control of the pre-stored pressure.

[0036] When using the burst pressure gauge calibration device of this utility model, the pressure generator 1 is electrically pressurized by the electronic controller, and the pressure is pre-stored in the buffer tank 3 by the electric control valve 2. The electronic controller must have the function of fine adjustment of the pre-pressure. The air is gradually pressurized by the step-by-step piston pressurization of the electric control valve 2, and the pre-stored pressure is precisely controlled by the electronic controller. The solenoid valve 4 is quickly opened to release the pre-stored pressure into the pipeline of the burst pressure gauge 6 under test, realizing the effective simulation of the actual working condition. The instantaneous burst pressure value of the burst pressure gauge pipeline under test reaches 14MPa in a short time. The burst pressure gauge under test is calibrated by the pressure standard gauge 7. After the calibration is completed, the test pressure is released by opening the pressure relief valve 5.

[0037] Example 4 A burst pressure gauge calibration device includes a pressure generator 1, an electric control valve 2, a buffer tank 3, a solenoid valve 4, and a pressure standard gauge 7 connected in sequence via pipelines. It also includes a pressure relief valve 5. The solenoid valve 4 is connected to the pressure standard gauge 7 and the pressure relief valve 5 via a three-way pipe A. The first port of the three-way pipe A is connected to the solenoid valve 4, the second port is connected to the pressure standard gauge 7 and the burst pressure gauge 6, and the third port is connected to the pressure relief valve 5.

[0038] Pressure generator 1 is connected to an electronic controller. Electric control valve 2 is a piston-type gas booster valve that gradually increases the pressure of air. It works in conjunction with the electronic controller of the pressure generator to achieve precise control of the pre-stored pressure.

[0039] When using the burst pressure gauge calibration device of this utility model, the pressure generator 1 is electrically pressurized by the electronic controller, and the pressure is pre-stored in the buffer tank 3 by the electric control valve 2. The electronic controller must have the function of fine adjustment of the pre-pressure. The air is gradually pressurized by the step-by-step piston pressurization of the electric control valve 2, and the pre-stored pressure is precisely controlled by the electronic controller. The solenoid valve 4 is quickly opened to release the pre-stored pressure into the pipeline of the burst pressure gauge 6 under test, realizing the effective simulation of the actual working condition. The instantaneous burst pressure value of the burst pressure gauge pipeline under test reaches 14MPa in a short time. The burst pressure gauge under test is calibrated by the pressure standard gauge 7. After the calibration is completed, the test pressure is released by opening the pressure relief valve 5.

[0040] Example 5 A burst pressure gauge calibration device includes a pressure generator 1, an electric control valve 2, a buffer tank 3, a solenoid valve 4, and a pressure standard gauge 7 connected in sequence via pipelines. It also includes a pressure relief valve 5. The solenoid valve 4 is connected to the pressure standard gauge 7 and the pressure relief valve 5 via a three-way pipe A. The first port of the three-way pipe A is connected to the solenoid valve 4, the second port is connected to the pressure standard gauge 7 and the burst pressure gauge 6, and the third port is connected to the pressure relief valve 5.

[0041] Pressure generator 1 is connected to an electronic controller, electric control valve 2 is a piston-type gas booster valve, solenoid valve 4 is a servo solenoid booster valve, and solenoid valve 4 is connected to an electronic control device 8.

[0042] By using the electronic control device 8 to preset the pressure value and the opening and closing time of the servo electromagnetic booster valve 4, the servo electromagnetic booster valve 4 is quickly opened, and the pre-stored pressure is rapidly released into the pipeline of the pressure gauge under test, thereby achieving effective simulation of the actual working conditions.

[0043] When using the burst pressure gauge calibration device of this utility model, the pressure generator 1 is electrically pressurized by the electronic controller, and the pressure is pre-stored in the buffer tank 3 by the electric control valve 2. The electronic controller must have the function of fine adjustment of the pre-pressure. The air is gradually pressurized by the step-by-step piston pressurization of the electric control valve 2, and the pre-stored pressure is precisely controlled by the electronic controller. The pressure value and the opening and closing time of the solenoid valve 4 are preset by the electronic control device 8. The solenoid valve 4 is quickly opened to release the pre-stored pressure into the pipeline of the burst pressure gauge 6 under test. The instantaneous burst pressure value of the pipeline of the burst pressure gauge under test reaches 14MPa in a short time. The burst pressure gauge under test is calibrated by the pressure standard gauge 7. After the calibration is completed, the test pressure is released by opening the pressure relief valve 5.

[0044] Example 6 A burst pressure gauge calibration device includes a pressure generator 1, an electric control valve 2, a buffer tank 3, a solenoid valve 4, and a pressure standard gauge 7 connected in sequence via pipelines. It also includes a pressure relief valve 5. The solenoid valve 4 is connected to the pressure standard gauge 7 and the pressure relief valve 5 via a three-way pipe A. The first port of the three-way pipe A is connected to the solenoid valve 4, the second port is connected to the pressure standard gauge 7 and the burst pressure gauge 6, and the third port is connected to the pressure relief valve 5.

[0045] The connections between the pipeline and the pressure generator 1, electric control valve 2, buffer tank 3, solenoid valve 4, pressure gauge 7, and pressure relief valve 5 are all threaded connections, which are simple and convenient to install and have good sealing performance.

[0046] Pressure generator 1 is connected to an electronic controller, electric control valve 2 is a piston-type gas booster valve, solenoid valve 4 is a servo solenoid booster valve, and solenoid valve 4 is connected to an electronic control device 8.

[0047] The second port of tee pipe A is connected to pressure gauge 7 and burst pressure gauge 6 via tee pipe B. One port of tee pipe B is connected to the second port of tee pipe A, and the other two ports are connected to pressure gauge 7 and burst pressure gauge 6 respectively.

[0048] When using the burst pressure gauge calibration device of this utility model, the pressure generator 1 is electrically pressurized by the electronic controller, and the pressure is pre-stored in the buffer tank 3 by the electric control valve 2. The electronic controller must have the function of fine adjustment of the pre-pressure. The air is gradually pressurized by the step-by-step piston pressurization of the electric control valve 2, and the pre-stored pressure is precisely controlled by the electronic controller. The pressure value and the opening and closing time of the solenoid valve 4 are preset by the electronic control device 8. The solenoid valve 4 is quickly opened to release the pre-stored pressure into the pipeline of the burst pressure gauge 6 under test, realizing the effective simulation of the actual working condition. The instantaneous burst pressure value of the burst pressure gauge pipeline under test reaches 14MPa in a short time. The burst pressure gauge under test is calibrated by the pressure standard gauge 7. After the calibration is completed, the test pressure is released by opening the pressure relief valve 5.

[0049] This utility model burst pressure gauge calibration device achieves stepped pre-pressure through pressure generator 1 and electric control valve 2, and releases pressure in a short time to reach simulated working conditions through precise control of solenoid valve 4 and electronic control device 8. This makes the burst pressure gauge calibration process closer to actual working conditions and improves the accuracy of the calibration results.

[0050] As a core monitoring tool for diesel engines, the combustion pressure gauge has a close kinetic relationship with diesel engine combustion parameters. Based on real-time combustion pressure data, closed-loop control of fuel injection timing stabilizes maximum power within the design safety window, allowing for timely adjustment of diesel engine combustion parameters and facilitating coordinated operation among cylinders. This contributes to improving the manufacturing quality, maintenance quality, operating efficiency, and service life of diesel engines, greatly promoting the manufacturing of high-end equipment in my country's heavy industries such as large ships and locomotives. Furthermore, it can further improve diesel engine combustion efficiency, reduce carbon emissions, and achieve low-carbon, energy-saving, and green development.

Claims

1. A device for calibrating a burst pressure gauge, characterized in that, It includes a pressure generator (1), an electric control valve (2), a buffer tank (3), a solenoid valve (4), and a pressure gauge (7) connected in sequence via pipes. It also includes a pressure relief valve (5). The solenoid valve (4) is connected to the pressure gauge (7) and the pressure relief valve (5) via a three-way pipe A. The first port of the three-way pipe A is connected to the solenoid valve (4), the second port is connected to the pressure gauge (7) and the burst pressure gauge (6), and the third port is connected to the pressure relief valve (5).

2. The burst pressure gauge calibration device according to claim 1, characterized in that, The pressure generator (1) is connected to an electronic controller.

3. The burst pressure gauge calibration device according to claim 1, characterized in that, The electric control valve (2) is a gas booster valve.

4. The burst pressure gauge calibration device according to claim 3, characterized in that, The electric control valve (2) is a piston-type gas booster valve.

5. The burst pressure gauge calibration device according to claim 1, characterized in that, The solenoid valve (4) is a servo solenoid booster valve.

6. The burst pressure gauge calibration device according to claim 5, characterized in that, The solenoid valve (4) is connected to an electronic control device (8).

7. The burst pressure gauge calibration device according to claim 1, characterized in that, The second port of the tee pipe A is connected to the pressure standard gauge (7) and the burst pressure gauge (6) through the tee pipe B. One port of the tee pipe B is connected to the second port of the tee pipe A, and the other two ports are connected to the pressure standard gauge (7) and the burst pressure gauge (6) respectively.

8. The burst pressure gauge calibration device according to claim 1, characterized in that, The connections between the pipeline and the pressure generator (1), electric control valve (2), buffer tank (3), solenoid valve (4), pressure gauge (7), and pressure relief valve (5) are all threaded connections.

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