Marine fuel gas detection sensor test platform

Abstract

The embodiment of the utility model provides a marine fuel gas detection sensor test platform. The test platform comprises a gas cylinder, a gas sample injection instrument, a gas proportioning box, a stirring fan, a filter, a gas analyzer, a mist generator, a temperature transmitter and a heater. The device can be used for simulating the working environment of gas detection under the marine use condition and verifying the main functions and performance of the marine gas detection sensor.

Description

Technical Field

[0001] The present application relates to the technical field of marine gas detection, and in particular to a marine gas detection sensor test platform. Background Art

[0002] Green ship power for greenhouse gas emissions is a hot topic in the current shipping industry. In order to achieve a sustainable development strategy and reduce the further impact of ship exhaust emissions on the ecological environment, dual-fuel or pure gas-powered ships are widely used. Dual-fuel or pure gas engines mostly use natural gas as fuel. The main components of liquefied natural gas are methane and a small amount of ethane, propane, etc., which are flammable and explosive gases. They will explode at a concentration range of 5% to 15%. Safety issues during use and storage cannot be ignored. In order to closely monitor the concentration of combustible gas in the air and the double-walled pipe connected to the main engine, thereby ensuring the safe navigation of the ship, the combustible gas detection sensor is an indispensable combustible gas detection and alarm equipment.

[0003] The marine gas detection sensor is a small but complex device. Unlike consumer sensors, its operating conditions are very complex. It is very necessary to have a gas detector that can adapt to harsh ship application environments and maintain detection accuracy under high and low temperatures, salt spray and water vapor, etc. Utility Model Content

[0004] The embodiment of the present application provides a test platform for a marine gas detection sensor, which is used to simulate the working environment of gas detection under marine use conditions and verify the main functions and performances of the marine gas detection sensor.

[0005] The embodiment of the present application provides a test platform for a marine gas detection sensor, the test platform comprising: a gas cylinder, a gas sample injector, a gas proportioning box and a gas analyzer;

[0006] The gas cylinder is connected to the gas proportioning box via the gas sample injector, and the gas cylinder is used to load the fuel gas;

[0007] The gas sample injector is provided with a quantitative gas inlet valve, which can inject the gas loaded in the gas cylinder into the gas proportioning box by controlling the quantitative gas inlet valve according to the concentration requirement;

[0008] The gas analyzer is connected to the gas matching box and can detect the gas concentration in the gas matching box.

[0009] In some embodiments, the test platform further comprises: a stirring fan;

[0010] The stirring fan is arranged in the gas proportioning box and can stir the gas in the box.

[0011] In some embodiments, the test platform further comprises: a filter;

[0012] The gas analyzer is connected to the gas matching box through the filter.

[0013] In some embodiments, the test platform further comprises: a heater;

[0014] The heater is arranged at the bottom of the gas matching box and can heat the gas matching box.

[0015] In some embodiments, the test platform further comprises: a temperature transmitter;

[0016] The temperature transmitter is connected to the gas proportioning box and can detect and display the temperature inside the gas proportioning box.

[0017] In some embodiments, the temperature transmitter is in communication with the heater, and the temperature transmitter can send the detected temperature inside the gas proportioning box to the heater;

[0018] The heater can adjust the heating temperature according to the temperature inside the gas proportioning box sent by the temperature transmitter.

[0019] In some embodiments, the gas analyzer is in communication connection with the gas sample injector, and the gas analyzer can send the detected gas concentration in the gas proportioning box to the gas sample injector;

[0020] The gas sample injector can distribute gas according to the fuel gas concentration and concentration requirement in the gas distribution box received from the gas analyzer.

[0021] In some embodiments, the type of gas loaded in the gas cylinder includes: methane gas.

[0022] In some embodiments, the methane gas concentration loaded in the gas cylinder is 100%.

[0023] In some embodiments, the test platform further comprises: a mist generator;

[0024] The mist generator is connected to the gas matching box and can input water mist and / or oil mist into the gas matching box.

[0025] The marine gas detection sensor test platform of the above embodiment of the present application can be used to simulate the working environment of gas detection under marine use conditions, verify the main functions and performance of the marine gas detection sensor, BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings illustrate generally, by way of example and not limitation, various embodiments discussed herein.

[0027] Figure 1 This is a schematic diagram of the composition of a marine gas detection sensor test platform according to an embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of the composition of the mist generator. DETAILED DESCRIPTION

[0029] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present application, the implementation of the embodiments of the present application is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present application.

[0030] In the embodiments of the present application, it should be noted that, unless otherwise specified and limited, the term "connection" should be understood in a broad sense. For example, it can be an electrical connection or a connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0031] It should be noted that the terms "first\second\third" involved in the embodiments of the present application are only used to distinguish similar objects, and do not represent a specific order for the objects. It is understandable that the specific order or sequence of "first\second\third" can be interchanged where permitted. It should be understood that the objects distinguished by "first\second\third" can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0032] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] Figure 1 The composition of a ship gas detection sensor test platform according to an embodiment of the present application is shown. Figure 1 As shown, the test platform includes: a gas cylinder 1, a gas sample injector 2, a gas proportioning box 3 and a gas analyzer 4.

[0034] The gas cylinder 1 is connected to the gas proportioning box 3 through the gas sample injector 2, and the gas cylinder 1 is used to load the fuel gas.

[0035] The gas sample injector 2 is provided with a quantitative gas inlet valve, which can inject the gas loaded in the gas cylinder 1 into the gas proportioning box 3 by controlling the quantitative gas inlet valve according to the concentration requirement.

[0036] The gas analyzer 4 is connected to the gas matching box 3 and can detect the gas concentration in the gas matching box 3 .

[0037] In some embodiments, Figure 1 As shown, the test platform also includes: a stirring fan 5.

[0038] The stirring fan 5 is disposed in the gas proportioning box 3 and can stir the gas in the box.

[0039] In some embodiments, Figure 1 As shown, the test platform also includes: a filter 6.

[0040] The gas analyzer 4 is connected to the gas matching box 3 via a filter 6 .

[0041] In some embodiments, Figure 1 As shown, the test platform also includes: a heater 7.

[0042] The heater 7 is disposed at the bottom of the gas matching box 3 and can heat the gas matching box 3 .

[0043] In some embodiments, Figure 1 As shown, the test platform also includes: a temperature transmitter 8.

[0044] The temperature transmitter 8 is connected to the gas proportioning box 3 and can detect and display the temperature inside the gas proportioning box 3 .

[0045] In some embodiments, Figure 1 As shown, the temperature transmitter 8 is in communication connection with the heater 7 , and the temperature transmitter 8 can send the detected temperature inside the gas proportioning box 3 to the heater 7 .

[0046] The heater 7 can adjust the heating temperature according to the temperature in the gas proportioning box 3 sent by the temperature transmitter 8 .

[0047] In some embodiments, Figure 1 As shown, the gas analyzer 4 is in communication connection with the gas sample injector 2 , and the gas analyzer 4 can send the detected gas concentration in the gas proportioning box 3 to the gas sample injector 2 .

[0048] The gas sample injector 2 can distribute gas according to the fuel gas concentration and concentration requirement in the gas distribution box 3 sent by the gas analyzer 4 .

[0049] In some embodiments, the type of gas loaded in the gas cylinder 1 includes: methane gas.

[0050] In some embodiments, the methane concentration loaded in the gas cylinder 1 is 100%.

[0051] In some embodiments, Figure 1 As shown, the test platform also includes: a mist generator 9.

[0052] The mist generator 9 is connected to the gas proportioning box 3 and can input water mist and / or oil mist into the gas proportioning box 3 .

[0053] The present application embodiment provides a marine gas sensor test platform, such as Figure 1 As shown, it includes: a gas cylinder 1, a gas sample injector 2, a gas proportioning box 3, a stirring fan 5, a filter 6, a gas analyzer 4, a mist generator 9, a temperature transmitter 8 and a heater 7. Among them:

[0054] Gas cylinder 1 is filled with 100% methane gas.

[0055] The gas sample injector 2 controls the high-precision quantitative air inlet valve, which can accurately and quickly inject samples. It is connected to the gas analyzer 4 to distribute gas according to the existing concentration in the box and different concentration requirements. It has high measurement accuracy and fast response speed.

[0056] The gas proportioning box 3 has the functions of temperature display, pure gas injection, fan stirring and exhaust. The upper part thereof is provided with a stirring fan 5 for fully stirring the gas in the box to ensure uniform concentration.

[0057] The gas analyzer 4 can accurately collect the gas concentration in the proportioning box, and its accuracy, repeatability, response speed and reliability should not be lower than those of the test products.

[0058] The mist generator 9 can simulate water mist and oil mist interference in the marine environment.

[0059] The heater 7 can heat the gas proportioning box 3 as a whole, and adjust the heating temperature in real time through the temperature signal feedback of the temperature sensor.

[0060] like Figure 1 As shown, the gas sample injector 2 adjusts the mixing ratio of pure gas and air in the gas cylinder 1 by accurately controlling the quantitative injection valve, and inputs the mixed gas into the gas proportioning box 3. The gas analyzer 4 continuously detects the gas concentration in the gas proportioning box 3, and then controls the amount of injection of the quantitative gas sample injector 2 through closed-loop feedback, so as to reach the preset gas concentration value, and monitors, replenishes and maintains the set gas concentration value at any time. The gas concentration in the gas proportioning box 3 can also increase and change at a certain rate.

[0061] like Figure 2As shown, the mist generator 9 can generate interferences in the marine environment such as simulated water mist and oil mist. It is used to test the waterproof and anti-fog capabilities of the protective structure of the gas detection sensor. It can also be used for long-term durability testing. The mist generator 9 includes a stepper motor 92, a mist controller 91, a fan 93 and an analog quantity acquisition system 04.

[0062] The stepper motor 92 uses the rotation rate to adjust the amount of water and oil injected into the oil injection system. The atomizing device uses a temperature controllable heating pipe of 0-800℃, and is internally provided with a temperature sensor, a digital display module, and a safety circuit. The temperature sensor and the digital display module can be used together to visually observe the current temperature. The safety circuit has over-temperature tripping and over-temperature alarm functions, which are safe and reliable.

[0063] The atomization controller 91 can accurately control the heating time of the high-temperature electric-controlled atomization device and the temperature. The device can atomize the liquid lubricating oil injected by the water injection and oil injection systems to produce interference gas that simulates the marine environment.

[0064] The fan 93 is used to adjust the water mist and oil mist to enter the gas proportioning box 3 to avoid the high temperature electric control atomization device from being damaged and causing safety hazards such as explosion due to mist accumulation. The atomization control system can change the mist flow in the pipeline by changing the speed of the fan 93.

[0065] The analog quantity acquisition system 94 is used to collect the temperature and flow rate of the atomization device, and to feedback control the speed and flow rate of the stepping motor 92 and the fan 93 .

[0066] In addition, a heater 7 is arranged at the lower part of the gas proportioning box 3, which can heat the test sample gas and the high temperature environment in the engine room of the model ship. And through the temperature signal feedback of the temperature sensor, the heating temperature is adjusted in real time to reach the preset temperature value.

[0067] The gas detection sensor samples are tested in the proportioning box. This test platform can conduct functional performance tests such as detection accuracy, alarm action value, range indication deviation, response time, direction, alarm repeatability, and high-speed airflow.

[0068] The technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0069] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A marine gas detection sensor test platform, characterized in that: The test platform includes: a gas cylinder, a gas sample injector, a gas proportioning box and a gas analyzer; The gas cylinder is connected to the gas proportioning box via the gas sample injector, and the gas cylinder is used to load the fuel gas; The gas sample injector is provided with a quantitative gas inlet valve, which can inject the gas loaded in the gas cylinder into the gas proportioning box by controlling the quantitative gas inlet valve according to the concentration requirement; The gas analyzer is connected to the gas matching box and can detect the gas concentration in the gas matching box.

2. The marine gas detection sensor test platform according to claim 1 is characterized in that: The test platform also includes: a stirring fan; The stirring fan is arranged in the gas proportioning box and can stir the gas in the box.

3. The marine gas detection sensor test platform according to claim 1 is characterized in that: The test platform also includes: a filter; The gas analyzer is connected to the gas matching box through the filter.

4. The marine gas detection sensor test platform according to claim 1 is characterized in that: The test platform also includes: a heater; The heater is arranged at the bottom of the gas matching box and can heat the gas matching box.

5. The marine gas detection sensor test platform according to claim 4 is characterized in that: The test platform also includes: a temperature transmitter; The temperature transmitter is connected to the gas proportioning box and can detect and display the temperature inside the gas proportioning box.

6. The marine gas detection sensor test platform according to claim 5 is characterized in that: The temperature transmitter is in communication connection with the heater, and the temperature transmitter can send the detected temperature inside the gas proportioning box to the heater; The heater can adjust the heating temperature according to the temperature inside the gas proportioning box sent by the temperature transmitter.

7. The marine gas detection sensor test platform according to claim 1 is characterized in that: The gas analyzer is in communication connection with the gas sample injector, and the gas analyzer can send the detected gas concentration in the gas proportioning box to the gas sample injector; The gas sample injector can distribute gas according to the fuel gas concentration and concentration requirement in the gas distribution box received from the gas analyzer.

8. The marine gas detection sensor test platform according to claim 1 is characterized in that: The types of fuel gas loaded in the gas cylinder include: methane gas.

9. The marine gas detection sensor test platform according to claim 8, characterized in that: The methane gas concentration loaded in the gas cylinder is 100%.

10. The marine gas detection sensor test platform according to claim 1, characterized in that: The test platform also includes: a mist generator; The mist generator is connected to the gas matching box and can input water mist and / or oil mist into the gas matching box.

Images