Test bench system

Abstract

The utility model relates to a test bench system. The test bench system is used for testing a hydrogen fuel internal combustion engine and comprises a test chamber used for placing a dynamometer and the hydrogen fuel internal combustion engine to be tested, and the dynamometer is used for testing the rotating speed, the torque and the power of the hydrogen fuel internal combustion engine; the environment air conditioning cabin is arranged at the top of the test cabin and is used for controlling the environment temperature and humidity in the test cabin; testing equipment is placed in the equipment cabin, and the testing equipment is connected into the testing cabin through a pipeline; the fuel supply cabin is connected into the hydrogen fuel internal combustion engine through a gas pipeline; and the monitoring cabin is connected with the test cabin, the environment air conditioning cabin, the equipment cabin and the fuel supply cabin and is used for acquiring working data of each equipment in the test process. The utility model provides a test bench system which can meet the test requirement of a hydrogen fuel internal combustion engine, improve the test efficiency and reduce the manufacturing and upgrading cost.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle detection, in particular to a test bench system suitable for hydrogen fuel internal combustion engines. Background Art

[0002] Hydrogen does not contain carbon elements, can be produced through renewable energy, and has diverse energy sources. It is a clean energy that can achieve zero carbon emissions throughout its life cycle.

[0003] As a power machine that uses zero-carbon fuel, hydrogen fuel internal combustion engines have good development prospects. With the commercialization of hydrogen fuel internal combustion engine technology, domestic and foreign OEMs are developing hydrogen fuel internal combustion engines, which in turn generates the need for testing hydrogen fuel internal combustion engine benches.

[0004] Hydrogen fuel internal combustion engines use hydrogen as fuel. Given the special property that the lower limit of hydrogen explosion concentration is 4%, it is quite different from the bench test system of traditional fuels (diesel and gasoline). Therefore, it is necessary to redesign the bench test laboratory for hydrogen fuel internal combustion engines.

[0005] The traditional fuel internal combustion engine laboratory is placed in a Class C building, and the electrical appliances used in the laboratory are not explosion-proof; the auxiliary equipment such as the water cooling unit and the intercooler are placed in the laboratory room and are not explosion-proof; the laboratory is not equipped with hydrogen pipelines and nitrogen purge pipelines. Based on the above reasons, it is necessary to redesign and build a new bench test system for hydrogen fuel internal combustion engines. Utility Model Content

[0006] In view of the above-mentioned problems in the prior art, the utility model proposes a test bench system that can meet the testing requirements of hydrogen fuel internal combustion engines, improve testing efficiency, and reduce manufacturing and upgrading costs.

[0007] Specifically, the utility model proposes a test bench system for testing a hydrogen fuel internal combustion engine, comprising:

[0008] A test chamber, used to place a dynamometer and the hydrogen fuel internal combustion engine to be tested, wherein the dynamometer is used to test the speed, torque and power of the hydrogen fuel internal combustion engine;

[0009] An environmental air-conditioning cabin, placed on the top of the test cabin, for controlling the ambient temperature and humidity in the test cabin;

[0010] An equipment cabin is used to place test equipment, and the test equipment is connected to the test cabin through pipelines;

[0011] A fuel supply tank connected to the hydrogen fuel internal combustion engine through a gas pipeline;

[0012] The monitoring cabin is connected to the test cabin, the environmental air conditioning cabin, the equipment cabin and the fuel supply cabin, and is used to obtain the working data of each device during the test.

[0013] According to one embodiment of the utility model, the test bench system also includes a first container and a second container, the test cabin is arranged in the first container, the equipment cabin is arranged in the second container, the environmental air-conditioning cabin is placed on the top of the first container, and the environmental air-conditioning cabin is connected to the test cabin through a pipeline to adjust the ambient temperature and humidity in the test cabin.

[0014] According to an embodiment of the utility model, an iron plate is arranged on the main support beam of the first container, the dynamometer and the hydrogen fuel internal combustion engine are placed on the iron plate, and the iron plate is damped by air springs.

[0015] According to an embodiment of the utility model, the ventilation system of the environmental air-conditioning cabin adopts explosion-proof ventilation equipment, and the exhaust frequency of the explosion-proof ventilation equipment is not less than 12 times / h.

[0016] According to one embodiment of the utility model, a combustible gas alarm system and a hydrogen leakage alarm system are provided in the test cabin, the combustible gas alarm system is used to monitor the combustible gas content in the test cabin, the hydrogen leakage alarm system is used to monitor the hydrogen content in the test cabin, the combustible gas alarm system and the hydrogen leakage alarm system are connected to the monitoring cabin, and the monitoring cabin is used to receive and display the monitoring information obtained by the combustible gas alarm system and the hydrogen leakage alarm system.

[0017] According to one embodiment of the utility model, a temperature and / or smoke alarm device is further provided in the test cabin, and the temperature and smoke alarm device is used to monitor the temperature and smoke concentration in the test cabin. The temperature and smoke alarm device is connected to the monitoring cabin, and the monitoring cabin is used to receive and display the monitoring information obtained by the temperature and smoke alarm device.

[0018] According to one embodiment of the utility model, the test equipment includes at least an emission analyzer, an intercooler and a water cooling unit, the emission analyzer is used to measure the exhaust pollutants of the hydrogen fuel internal combustion engine, the intercooler is used to simulate the intercooling of the whole vehicle, and the water cooling unit is used to simulate the water cooling system of the whole vehicle.

[0019] According to one embodiment of the utility model, the gas pipeline includes a fuel pipeline and a nitrogen purge pipeline, the fuel supply tank provides hydrogen to the hydrogen fuel internal combustion engine through the fuel pipeline, and the fuel supply tank transports nitrogen to the hydrogen fuel internal combustion engine through the nitrogen purge pipeline to purge the hydrogen in the hydrogen fuel internal combustion engine pipeline.

[0020] According to one embodiment of the utility model, the monitoring cabin includes a main control device and a display, the monitoring cabin obtains working data during the test, the display is used to display the working data, and the main control device controls the actions of various devices based on the working data to realize the test of the hydrogen fuel internal combustion engine.

[0021] According to one embodiment of the utility model, the monitoring cabin is spaced apart from the test cabin, the environmental air conditioning cabin, the equipment cabin and the fuel supply cabin.

[0022] The utility model provides a test bench system that can meet the testing requirements of hydrogen fuel internal combustion engines. Through modular design, each module is connected by pipelines, which is conducive to the overall relocation of the system, improves testing efficiency, and reduces manufacturing and upgrading costs.

[0023] It should be understood that the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the present invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are included to provide a further understanding of the present invention, and they are included and constitute a part of this application. The accompanying drawings illustrate embodiments of the present invention and together with this specification serve to explain the principles of the present invention. In the accompanying drawings:

[0025] Figure 1 A structural schematic diagram of a test bench system according to an embodiment of the utility model is shown.

[0026] The above drawings include the following reference numerals:

[0027] Test Bench System 100

[0028] Test Chamber 101

[0029] Equipment cabin 102

[0030] Fuel supply tank 103

[0031] Monitoring cabin 104

[0032] Dynamometer 105

[0033] Hydrogen fuel internal combustion engine 106

[0034] Gas pipeline 107

[0035] First Container 108

[0036] Second container 109

[0037] Iron plate 110

[0038] Emission Analyzer 111

[0039] Intercooler 112

[0040] Water cooling unit 113

[0041] Particle mass analyzer 114

[0042] 489 Analyzer 115

[0043] 415S Analyzer 116

[0044] Partition 117 DETAILED DESCRIPTION

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0046] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0047] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0048] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0049] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0050] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0051] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.

[0052] Figure 1 The structure diagram of a test bench system of an embodiment of the utility model is shown. As shown in the figure, a test bench system 100 for testing a hydrogen fuel internal combustion engine mainly includes a test cabin 101, an environmental air conditioning cabin, an equipment cabin 102, a fuel supply cabin 103 and a monitoring cabin 104.

[0053] The test chamber 101 is used to place a dynamometer 105 and a hydrogen fuel internal combustion engine 106 to be tested. The dynamometer 105 is used to test the rotation speed, torque and power of the hydrogen fuel internal combustion engine 106 .

[0054] The environmental air conditioning cabin is placed on the top of the test cabin 101. The environmental air conditioning cabin is used to control the ambient temperature and humidity in the test cabin 101.

[0055] The equipment cabin 102 is used to place test equipment, and the test equipment is connected to the test cabin 101 through pipelines.

[0056] The fuel supply tank 103 is connected to the hydrogen fuel internal combustion engine 106 via a gas pipeline 107 .

[0057] The monitoring cabin 104 is connected to the test cabin 101, the environmental air conditioning cabin, the equipment cabin 102 and the fuel supply cabin 103. The monitoring cabin 104 is used to obtain the working data of each device during the test process.

[0058] Preferably, the test bench system 100 further includes a first container 108 and a second container 109. The test cabin 101 is arranged in the first container 108, and the equipment cabin 102 is arranged in the second container 109. The environmental air-conditioning cabin is arranged on the top of the first container 108, and the environmental air-conditioning cabin is connected to the test cabin 101 through pipelines to adjust the ambient temperature and humidity in the test cabin 101. The purpose of setting the first container 108 and the second container 109 is to strengthen the modular design of the test bench system 100. The functions of each module are relatively independent and are connected by pipelines, which facilitates the relocation, overall assembly and disassembly of the test bench system 100, and effectively reduces the manufacturing and upgrading costs.

[0059] Preferably, an iron plate 110 is arranged on the main support beam of the first container 108. The dynamometer 105 and the hydrogen fuel internal combustion engine 106 are placed on the iron plate 110, and the iron plate 110 is damped by air springs. The iron plate 110 is used to provide a plane reference to ensure good support.

[0060] Preferably, the ventilation system of the environmental air conditioning cabin uses explosion-proof ventilation equipment, and the exhaust frequency of the explosion-proof ventilation equipment is not less than 12 times / h. If an unexpected situation occurs in the test cabin 101, such as abnormal temperature or abnormal hydrogen content, turning on the explosion-proof ventilation equipment can achieve rapid ventilation.

[0061] Preferably, a combustible gas alarm system and a hydrogen leakage alarm system are provided in the test cabin 101. The combustible gas alarm system is used to monitor the combustible gas content in the test cabin 101, and the hydrogen leakage alarm system is used to monitor the hydrogen content in the test cabin 101. The combustible gas alarm system and the hydrogen leakage alarm system are connected to the monitoring cabin 104, and the monitoring cabin 104 is used to receive and display the monitoring information obtained by the combustible gas alarm system and the hydrogen leakage alarm system. It is easy to understand that the monitoring cabin 104 implements operation control based on the monitoring information. For example, if an alarm signal from the hydrogen leakage alarm system is received, a control command is sent to the test cabin 101 to stop the test, stop the hydrogen fuel internal combustion engine 106, and send a control command to the environmental air conditioning cabin to turn on the explosion-proof ventilation equipment to achieve rapid ventilation, reduce the hydrogen concentration in the test cabin 101, and eliminate potential safety hazards.

[0062] Preferably, the test cabin 101 is also provided with a temperature and / or smoke alarm device. The temperature and smoke alarm device is used to monitor the temperature and smoke concentration in the test cabin 101. The temperature and smoke alarm device is connected to the monitoring cabin 104, and the monitoring cabin 104 is used to receive and display the monitoring information obtained by the temperature and smoke alarm device. The monitoring cabin 104 can implement operational control based on the monitoring information. For example, if the monitoring cabin 104 receives a smoke alarm, a control command is sent to the test cabin 101 to stop the current test, stop the hydrogen fuel internal combustion engine 106 from running, and send a control command to the environmental air-conditioning cabin to turn on the explosion-proof ventilation equipment to achieve rapid ventilation, reduce the smoke concentration in the test cabin 101, and eliminate hidden dangers.

[0063] Preferably, the test equipment includes at least an emission analyzer 111, an intercooler 112 and a water cooling unit 113. These devices are connected to the test chamber 101 through pipelines. Among them, the emission analyzer 111 is used to continuously measure the exhaust pollutants, such as nitrogen oxides (NOx), generated in the exhaust gas of the hydrogen fuel internal combustion engine 106. The intercooler 112 is used to simulate the intake temperature control after the whole vehicle turbocharger, reduce the heat load of the internal combustion engine, increase the intake volume, and increase the power of the internal combustion engine. The water cooling unit 113 is used to simulate the cooling system of the whole vehicle, cool the heat generated by the internal combustion engine, prevent the internal combustion engine from overheating, and keep it at a constant temperature. By way of example and not limitation, the test equipment also includes a particle mass analyzer 114, a 489 analyzer 115 and a 415S analyzer 116, and the particle mass analyzer 114 is used to measure the weight of particulate matter in the exhaust gas of the internal combustion engine; the 489 analyzer 115 is used to measure the number of particulate matter in the exhaust gas of the internal combustion engine; and the 415S analyzer 116 is used to measure the smoke generated by the exhaust gas of the internal combustion engine.

[0064] Preferably, the gas pipeline 107 includes a fuel pipeline and a nitrogen purge pipeline. The fuel supply tank 103 provides hydrogen to the hydrogen fuel internal combustion engine 106 through the fuel pipeline to ensure that the test is carried out normally. The fuel supply tank 103 delivers nitrogen to the hydrogen fuel internal combustion engine 106 through the nitrogen purge pipeline to purge the hydrogen in the pipeline of the hydrogen fuel internal combustion engine 106. When the hydrogen fuel internal combustion engine 106 is shut down, it is necessary to purge the unreacted fuel gas in the pipeline of the hydrogen fuel internal combustion engine 106 to ensure the safety of the operation of the hydrogen fuel internal combustion engine and the smooth operation of the next operation.

[0065] Preferably, the monitoring cabin 104 includes a main control device and a display. The monitoring cabin 104 obtains the working data during the test, and the display is used to display the working data. The main control device controls the actions of each device based on the working data to achieve the test of the hydrogen fuel internal combustion engine 106. Specifically, the monitoring cabin 104 is equipped with a safety joint control system, including a hydrogen sensor, a smoke detector, a flame detector, a buzzer, a gas source cut-off valve, an emergency stop of the power supply of the test room, an automatic fire extinguishing system, a ventilation system and other control functions.

[0066] Preferably, the monitoring cabin 104 is spaced apart from the test cabin 101, the environmental air conditioning cabin, the equipment cabin 102 and the fuel supply cabin 103. As shown in the figure, a partition wall 117 is set between the monitoring cabin 104 and the first container 108 and the second container 109 to ensure the safety of personnel and equipment in the monitoring cabin 104.

[0067] The test bench system provided by the utility model adopts a modular design, and the test cabin, equipment cabin, etc. are placed in a container. The modules are connected by pipelines, which can meet various test requirements of hydrogen internal combustion engines. After the pipelines and various pipelines are disassembled, the container can be transported separately for easy movement.

[0068] It will be apparent to those skilled in the art that various modifications and variations can be made to the above exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention covers modifications and variations of the present invention that fall within the scope of the appended claims and their equivalent technical solutions.

Claims

1. A test bench system for testing a hydrogen fuel internal combustion engine, characterized in that: include, A test chamber, used to place a dynamometer and the hydrogen fuel internal combustion engine to be tested, wherein the dynamometer is used to test the speed, torque and power of the hydrogen fuel internal combustion engine; An environmental air conditioning cabin, arranged on the top of the test cabin, for controlling the environmental temperature and humidity in the test cabin; An equipment cabin is used to place test equipment, and the test equipment is connected to the test cabin through pipelines; A fuel supply tank connected to the hydrogen fuel internal combustion engine through a gas pipeline; The monitoring cabin is connected to the test cabin, the environmental air conditioning cabin, the equipment cabin and the fuel supply cabin, and is used to obtain the working data of each device during the test.

2. The test bench system according to claim 1, characterized in that: It also includes a first container and a second container, the test cabin is arranged in the first container, the equipment cabin is arranged in the second container, the environmental air-conditioning cabin is arranged on the top of the first container, and the environmental air-conditioning cabin is connected to the test cabin through a pipeline to adjust the ambient temperature and humidity in the test cabin.

3. The test bench system according to claim 2, characterized in that: An iron plate is arranged on the main support beam of the first container, the dynamometer and the hydrogen fuel internal combustion engine are placed on the iron plate, and the iron plate is damped by air springs.

4. The test bench system according to claim 1, characterized in that: The ventilation system of the environmental air-conditioning cabin adopts explosion-proof ventilation equipment, and the exhaust frequency of the explosion-proof ventilation equipment is not less than 12 times / h.

5. The test bench system according to claim 1, characterized in that: A combustible gas alarm system and a hydrogen leakage alarm system are provided in the test cabin. The combustible gas alarm system is used to monitor the combustible gas content in the test cabin, and the hydrogen leakage alarm system is used to monitor the hydrogen content in the test cabin. The combustible gas alarm system and the hydrogen leakage alarm system are connected to the monitoring cabin, and the monitoring cabin is used to receive and display the monitoring information obtained by the combustible gas alarm system and the hydrogen leakage alarm system.

6. The test bench system according to claim 5, characterized in that: The test chamber is also provided with a temperature and / or smoke alarm device, which is used to monitor the temperature and smoke concentration in the test chamber. The temperature and smoke alarm device is connected to the monitoring chamber, and the monitoring chamber is used to receive and display the monitoring information obtained by the temperature and smoke alarm device.

7. The test bench system according to claim 1, characterized in that: The test equipment includes at least an emission analyzer, an intercooler and a water cooling unit. The emission analyzer is used to measure the tail gas exhaust pollutants of the hydrogen fuel internal combustion engine, the intercooler is used to simulate the intercooling of the whole vehicle, and the water cooling unit is used to simulate the water cooling system of the whole vehicle.

8. The test bench system according to claim 1, characterized in that: The gas pipeline includes a fuel pipeline and a nitrogen purge pipeline. The fuel supply tank provides hydrogen to the hydrogen fuel internal combustion engine through the fuel pipeline, and the fuel supply tank transports nitrogen to the hydrogen fuel internal combustion engine through the nitrogen purge pipeline to purge the hydrogen in the hydrogen fuel internal combustion engine pipeline.

9. The test bench system according to claim 1, characterized in that: The monitoring cabin includes a main control device and a display. The monitoring cabin obtains working data during the test. The display is used to display the working data. The main control device controls the actions of various devices based on the working data to achieve the test of the hydrogen fuel internal combustion engine.

10. The test bench system according to claim 9, characterized in that: The monitoring cabin is spaced apart from the test cabin, the environmental air conditioning cabin, the equipment cabin and the fuel supply cabin.

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