High-pressure oil tank pressure resistance detection device and system

Abstract

The utility model provides a high-pressure oil tank pressure resistance detection device and system. The device comprises a first pressure detection assembly, a second pressure detection assembly and a heating assembly. The first pressure detection assembly is arranged on the outer side wall of the high-pressure oil tank, and the second pressure detection assembly is arranged on the inner side wall of the high-pressure oil tank. The heating assembly is arranged on the outer side wall of the oil tank. At the preset temperature, the first pressure detection assembly detects the first pressure of the outer side wall of the high-pressure oil tank, and the second pressure detection assembly detects the second pressure in the high-pressure oil tank; the size of the high-pressure oil tank under the first pressure and the second pressure is compared with a reference value of the high-pressure oil tank, and the pressure resistance of the high-pressure oil tank can be obtained. Compared with the prior art that a vehicle is placed in a summer high-temperature environment or an environment bin is built to change the internal temperature and the external temperature of the high-pressure oil tank, the heating assembly is used for changing the internal pressure of the oil tank, and then the pressure resistance of the oil tank is judged; according to the invention, manpower, material resources and financial resources are saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of railway equipment, in particular to a high-pressure oil tank pressure detection device and system. BACKGROUND

[0002] A high-pressure oil tank is needed in a plug-in hybrid vehicle, and the internal pressure is between 6-40Kpa. With the rapid development of plug-in hybrid vehicles, the pressure resistance of high-pressure oil tanks is also becoming higher and higher.

[0003] At present, the high-pressure oil tank pressure test method is to place the vehicle in a high-temperature environment in summer or to change the internal and external temperature of the high-pressure oil tank by building an environmental chamber to indirectly change the internal pressure of the oil tank, so as to test the pressure resistance of the oil tank.

[0004] However, the above-mentioned method consumes a lot of manpower, material resources and financial resources, and is greatly affected by environmental temperature, and cannot quantify the internal and external pressure difference of the oil tank.

[0005] Therefore, there is an urgent need for a high-pressure oil tank pressure detection device and system to solve the technical problems existing in the prior art to some extent. Content of the utility model

[0006] The purpose of the present application is to provide a high-pressure oil tank pressure detection device and system to solve the technical problems of consuming a lot of manpower, material resources and financial resources, and being greatly affected by environmental temperature, and being unable to quantify the internal and external pressure difference of the oil tank caused by using the prior art method to some extent.

[0007] The present application provides a high-pressure oil tank pressure detection device for testing the pressure resistance of a high-pressure oil tank. The high-pressure oil tank pressure detection device comprises a first pressure detection component, a second pressure detection component and a heating component.

[0008] The first pressure detection component is arranged on the outer side wall of the high-pressure oil tank at a first predetermined position, and the second pressure detection component is arranged on the inner side wall of the high-pressure oil tank at a second predetermined position.

[0009] The heating component is arranged on the outer side wall of the oil tank and is used to heat the high-pressure oil tank.

[0010] At a predetermined temperature, the first pressure detection component measures the first pressure of the outer side wall of the high-pressure oil tank, and the second pressure detection component measures the second pressure of the inside of the high-pressure oil tank. Comparing the size of the high-pressure oil tank under the first pressure and the second pressure with the reference value of the high-pressure oil tank can obtain the pressure resistance of the high-pressure oil tank.

[0011] In the above technical solution, further, the first pressure detection component comprises a first pressure sensor;

[0012] The first pressure sensor is arranged at the first preset position on the outer wall of the high-pressure oil tank and can measure the first pressure of the outer wall of the high-pressure oil tank.

[0013] In the technical scheme, further, the second pressure detection assembly comprises a second pressure sensor.

[0014] The second pressure sensor is arranged at the second preset position on the inner wall of the high-pressure oil tank and can measure the second pressure inside the high-pressure oil tank.

[0015] In the technical scheme, further, the second pressure detection assembly further comprises an oil-gas filter.

[0016] The oil-gas filter comprises a housing, a filter core, an air outlet and a liquid inlet.

[0017] The housing surrounds a mounting space, the filter core is arranged in the mounting space, the air outlet and the liquid inlet are formed in the housing and located on both sides of the filter core; the oil-gas mixture is guided to the mounting space through the liquid inlet, and the filter core can separate the oil-gas mixture so that the separated gas is discharged through the air outlet.

[0018] The detection port of the second pressure sensor is in communication with the air outlet and can measure the second pressure in the high-pressure oil tank.

[0019] In the technical scheme, further, the second pressure detection assembly further comprises a first support frame.

[0020] The first support frame is fixed to the inner wall of the high-pressure oil tank through a connecting piece.

[0021] The first support frame surrounds a fixing space, and the oil-gas filter is arranged in the fixing space.

[0022] In the technical scheme, further, the first support frame comprises a first bending part and a second bending part.

[0023] The first bending part and the second bending part are connected at a first preset angle to surround the fixing space.

[0024] In the technical scheme, further, the heating assembly comprises a heater.

[0025] The heater is arranged at the bottom of the high-pressure oil tank and can heat the high-pressure oil tank to the preset temperature.

[0026] Further, the heating assembly further comprises a second support frame.

[0027] The second support frame has a first connecting portion and a second connecting portion.

[0028] The first connecting portion and the second connecting portion are connected at a second preset angle.

[0029] One of the first connecting portion and the second connecting portion is connected to the heater, and the other is connected to the high-pressure oil tank.

[0030] Further, the high-pressure oil tank pressure detection device further comprises an oil inlet pipe, an oil outlet pipe, an oil inlet flow meter and an oil outlet flow meter.

[0031] The oil inlet pipe and the oil outlet pipe are respectively communicated with the high-pressure oil tank; the oil inlet flow meter is arranged on the oil inlet pipe and is used for measuring the oil speed of the oil inlet; and the oil outlet flow meter is arranged on the oil outlet pipe and is used for measuring the oil speed of the oil outlet.

[0032] The application also provides a high-pressure oil tank pressure detection system comprising the high-pressure oil tank pressure detection device.

[0033] Compared with the prior art, the application has the following beneficial effects:

[0034] The application provides a high-pressure oil tank pressure detection device for testing the pressure resistance of a high-pressure oil tank; the high-pressure oil tank pressure detection device comprises a first pressure detection assembly, a second pressure detection assembly and a heating assembly.

[0035] The first pressure detection assembly is arranged on the outer side wall of the high-pressure oil tank at a first preset position, and the second pressure detection assembly is arranged on the inner side wall of the high-pressure oil tank at a second preset position.

[0036] The heating assembly is arranged on the outer side wall of the oil tank and is used for heating the high-pressure oil tank.

[0037] At a preset temperature, the first pressure detection assembly measures the first pressure of the outer side wall of the high-pressure oil tank, and the second pressure detection assembly measures the second pressure of the inside of the high-pressure oil tank; comparing the size of the high-pressure oil tank under the first pressure and the second pressure with the reference value of the high-pressure oil tank can obtain the pressure resistance of the high-pressure oil tank.

[0038] In summary, the application changes the pressure inside the oil tank by using the heating assembly, and then judges the pressure resistance of the oil tank, which saves manpower, material resources and financial resources compared with the prior art of placing the vehicle in a high-temperature environment in summer or changing the internal and external temperature of the high-pressure oil tank by building an environmental warehouse.

[0039] The application also provides a high-pressure oil tank pressure detection system comprising the high-pressure oil tank pressure detection device described above. Therefore, the high-pressure oil tank pressure detection device described above has all the beneficial effects, and therefore will not be described in detail. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the drawings needed to be used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0041] Figure 1 The structural schematic diagram of the high-pressure oil tank pressure detection device provided by the application is shown in the figure.

[0042] Figure 2 The enlarged view of B in the figure. Figure 1

[0043] Figure 3 The enlarged view of A in the figure. Figure 1

[0044] Figure 4 The internal structure schematic diagram of the high-pressure oil tank hidden in the high-pressure oil tank pressure detection device provided by the application is shown in the figure.

[0045] Figure 5 The enlarged view of C in the figure. Figure 4

[0046] Figure 6 The enlarged view of D in the figure. Figure 4

[0047] Reference signs: 1-high-pressure oil tank; 2-first pressure detection assembly; 4-heating assembly; 5-first pressure sensor; 6-second pressure sensor; 7-housing; 8-gas outlet; 9-first support frame; 10-first bending part; 11-second bending part; 12-fixed space; 13-heater; 14-second support frame; 15-first connecting part; 16-second connecting part; 17-oil inlet pipe; 18-oil outlet pipe; 19-oil inlet flowmeter; 20-oil outlet flowmeter. DETAILED DESCRIPTION

[0048] ​​​​The following detailed description is presented to aid the reader in gaining a comprehensive understanding of the methods, apparatuses, and / or systems described herein. However, various changes, modifications, and equivalents can be used, and thus particular embodiments described herein are not intended as being exhaustive of what the present disclosure can provide. For example, although processes are described with regard to the present disclosure, such processes can include more, fewer, or only a single process. Additionally, some processes can not be implemented even though they are described. Moreover, although processes are described herein as various separate processes, which can be performed by different systems, such processes can not necessarily be performed by different systems and the order of some processes can be changed, including that certain processes could be performed in an iterative or parallel manner. Additionally, various features that are described herein can be implemented as hardware, software, firmware, or combinations thereof, and can be implemented within one or more processors or external to one or more processors, including being implemented across multiple processors. Further, it will be appreciated that features described herein as being implemented with or across one or more processors can be implemented by one or more other processors.

[0049] The features described herein can be implemented in different forms and are not to be construed as limited to the examples described herein. Rather, the described examples have been provided for illustrative purposes so that those skilled in the art will be able to implement the methods, apparatuses, and / or systems described herein in a variety of ways.

[0050] Throughout the specification, when an element (such as a layer, region, or substrate) is referred to as being “on” another element, “connected to” another element, “coupled to” another element, “in contact with” another element, or “covering” another element, it can be directly on, connected, coupled, in contact with, or covering the other element, or one or more other elements can be interposed therebetween. In contrast, when an element is referred to as being “directly on,” “directly connected to,” “directly coupled to,” “directly in contact with,” or “directly covering” another element, there are no other elements interposed therebetween.

[0051] As used herein, the term “and / or” includes any one of the listed items and any combination of any two or more of the listed items.

[0052] Although terms such as “first,” “second,” and “third” can be used herein to describe various elements, components, regions, layers, or sections, these elements, components, regions, layers, or sections are not limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer, or section from another element, component, region, layer, or section. Thus, the element, component, region, layer, or section referred to as the first element, component, region, layer, or section in the examples described herein can also be referred to as the second element, component, region, layer, or section without departing from the teachings of the examples.

[0053] For ease of description, spatially relative terms, such as "on", "upper", "lower", "above", and "below", can be used herein for the purpose of illustrating one element's relationship to another element within the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation, in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as being "on" or "above" other elements would then be oriented "below" or "on" the other elements. Thus, the term "on" can encompass both an "on" and "below" orientation. The device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative terms used herein interpreted accordingly.

[0054] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has", "having" as used herein, are specifically intended to be construed as open-ended terms (i.e., the terms do not exclude the presence of other elements or options). The term "coupled" as used herein is intended to mean the direct or indirect coupling between elements, and can include electrical coupling, optical coupling, magnetic coupling, or any combination thereof.

[0055] Due to manufacturing techniques and / or tolerances, variations in the shapes of the components shown in the figures can occur. Therefore, the examples described herein are not intended to be limited to the particular shapes of the components shown in the figures, but include deviations in shapes that would be apparent to those skilled in the art, even though the shapes are not explicitly described herein.

[0056] Features of the examples described herein can be combined in a variety of ways. In addition, although examples described herein have a variety of configurations, other configurations are possible.

[0057] Embodiment One

[0058] At present, the high-pressure oil tank 1 pressure test method is to place the vehicle in a high-temperature environment in summer or to change the internal and external temperature of the high-pressure oil tank 1 by building an environmental chamber, thereby indirectly changing the internal pressure of the oil tank, so as to test the pressure resistance of the oil tank. However, the above-mentioned method consumes a large amount of manpower, material resources and financial resources; and is greatly affected by the environmental temperature, and cannot quantify the internal and external pressure difference of the oil tank. Based on this, the present application develops a high-pressure oil tank pressure detection device, which will be described in detail below in combination with Figures 1-6 The structure is described in detail.

[0059] In combination with Figures 1-6As shown, the high-pressure oil tank pressure detection device is used for testing the pressure resistance of the high-pressure oil tank 1; the high-pressure oil tank pressure detection device comprises a first pressure detection assembly 2, a second pressure detection assembly and a heating assembly 4.

[0060] Specifically, the first pressure detection assembly 2 is arranged at a first preset position on the outer side wall of the high-pressure oil tank 1; the first preset position here refers to the top of the high-pressure oil tank 1, specifically the position at the top of the high-pressure oil tank 1 and away from the oil pump, so as to prevent the first pressure detection assembly 2 from interfering with the oil pump in position.

[0061] Specifically, the second pressure detection assembly is arranged at a second preset position on the inner side wall of the high-pressure oil tank 1; the second preset position here refers to the left inner wall of the high-pressure oil tank 1, i.e. the second pressure detection assembly is fixedly arranged on the left inner wall of the high-pressure oil tank 1.

[0062] Specifically, the heating assembly 4 is arranged on the outer side wall of the oil tank and is used for heating the high-pressure oil tank 1, so that the temperature inside the high-pressure oil tank 1 rises, thereby changing the pressure inside the high-pressure oil tank 1; further, the heating assembly 4 is arranged at the bottom of the high-pressure oil tank 1 and can heat the high-pressure oil tank 1. When the high-pressure oil tank 1 is heated, the gasoline inside the high-pressure oil tank 1 generates oil vapor, which will cause the pressure inside the high-pressure oil tank 1 to rise.

[0063] Specifically, at a preset temperature, the first pressure detection assembly 2 measures the first pressure on the outer side wall of the high-pressure oil tank 1, and the second pressure detection assembly measures the second pressure inside the high-pressure oil tank 1; the preset temperature here can be a set of gradient temperature values. Comparing the size of the high-pressure oil tank 1 under the first pressure and the second pressure with the reference value of the high-pressure oil tank 1 can obtain the pressure resistance of the high-pressure oil tank 1.

[0064] The above reference value refers to the data value of the high-pressure oil tank 1 under standard conditions, for example, when the thickness of the high-pressure oil tank 1 is 1.5 mm and the internal and external pressure difference of the high-pressure oil tank 1 is 16 kpa, the length deformation of the oil tank is between 1.8 mm and 2.2 mm; when the thickness of the high-pressure oil tank 1 is 1.5 mm and the internal and external pressure difference of the high-pressure oil tank 1 is 22 kpa, the length deformation of the oil tank is between 5.8 mm and 6.2 mm.

[0065] So the pressure test process of the high-pressure oil tank 1 is as follows: in the initial state, the length of the high-pressure oil tank 1 is L1. First, the high-temperature oil tank is heated by using the heating assembly 4, for example, heated to 40 DEG C (at this time, a temperature sensor can be arranged in the high-pressure oil tank 1 to display the temperature in the high-pressure oil tank 1), so that the pressure difference between the first pressure measured by the first pressure detection assembly and the second pressure measured by the second pressure detection assembly is 16 kpa; at this time, the length of the high-pressure oil tank 1 is measured as L2. Then calculate the length deformation of the high-pressure oil tank 1, that is, L2 minus L1, if the length deformation is greater than 2.2 mm, then it indicates that the pressure resistance of the high-pressure oil tank 1 is poor. That is, when heated to 40 DEG C, 16 kpa, the detected length deformation of the tank body is greater than 2.2 mm, which indicates that the strength of the high-pressure oil tank 1 is not enough / the thickness of the high-pressure oil tank 1 is too thin, which does not reach the ideal value (1.5 mm), at this time, it can be suggested to replace the high-pressure oil tank 1 with higher strength or replace the high-pressure oil tank 1 with greater thickness. Conversely, when heated to 40 DEG C, 16 kpa, the detected length deformation of the tank body is less than 1.8 mm, which indicates that the strength of the high-pressure oil tank 1 is too high / the thickness of the high-pressure oil tank 1 is too thick, at this time, it can be suggested to replace the high-pressure oil tank 1 with lower strength or replace the high-pressure oil tank 1 with thinner thickness.

[0066] For another example, in the initial state, the length of the high-pressure oil tank 1 is L3. First, the high-temperature oil tank is heated by using the heating assembly 4, for example, heated to 50 DEG C (at this time, a temperature sensor can be arranged in the high-pressure oil tank 1 to display the temperature in the high-pressure oil tank 1), so that the pressure difference between the first pressure measured by the first pressure detection assembly and the second pressure measured by the second pressure detection assembly is 22 kpa; at this time, the length of the high-pressure oil tank 1 is measured as L4. Then calculate the length deformation of the high-pressure oil tank 1, that is, L4 minus L3, if the length deformation is greater than 6.2 mm, then it indicates that the pressure resistance of the high-pressure oil tank 1 is poor. Similarly, as described above, no further description is given.

[0067] In summary, the present application changes the pressure inside the oil tank by using the heating assembly 4, and then judges the pressure resistance of the oil tank, compared with the existing method of placing the vehicle in a high-temperature environment in summer or by building an environmental warehouse to change the internal and external temperature of the high-pressure oil tank 1. The present application saves manpower, material resources and financial resources.

[0068] In this embodiment, further, in combination with Figure 2 As shown in the figure, the first pressure detection assembly 2 includes a first pressure sensor 5; the first pressure sensor 5 is arranged at the first preset position, that is, arranged at the outer side wall of the high-pressure oil tank 1, and can measure the first pressure of the outer side wall of the high-pressure oil tank 1.

[0069] Further, the first pressure sensor 5 is connected to the top of the high-pressure oil tank 1 by means of bolts, i.e. the first pressure sensor 5 is connected to the high-pressure oil tank 1 by means of bolts.

[0070] Further, the high-pressure oil tank 1 is provided with a threaded hole at the first preset position, and the bolt passes through the shell of the first pressure sensor 5 and is screwed into the threaded hole.

[0071] In this embodiment, further, as shown in Figure 4 and Figure 5 As shown in the second pressure sensor 6 is arranged on the inner side wall of the high-pressure oil tank 1 at the second preset position, and can measure the second pressure inside the high-pressure oil tank 1.

[0072] Further, considering that the high-pressure oil tank 1 has gasoline inside, in order to prevent the gasoline from interfering with the second pressure sensor 6 and damaging the detection function of the second pressure sensor 6, the second pressure detection assembly further comprises an oil and gas filter; as shown in Figure 5 As shown in the oil and gas filter comprises a shell 7, a filter element, an air outlet 8 and a liquid inlet.

[0073] The shell 7 surrounds an installation space, and the filter element is arranged in the installation space. Further, the circumferential side wall of the filter element abuts the circumferential inner side wall of the shell 7, so that the filter element divides the installation space into a left chamber and a right chamber.

[0074] The air outlet 8 and the liquid inlet are formed in the shell 7 and located on both sides of the filter element. It can be understood that the air outlet 8 and the liquid inlet are formed in the shell 7, and the air outlet 8 is located in the left chamber and the liquid inlet is located in the right chamber.

[0075] The oil and gas mixture is guided into the installation space through the liquid inlet, and the filter element can separate the oil and gas mixture, so that the separated gas is discharged through the air outlet 8. Since the detection port of the second pressure sensor 6 communicates with the air outlet 8, it can accurately measure the second pressure inside the high-pressure oil tank 1. Further, since the air outlet 8 does not discharge oil, the detection port of the second pressure sensor 6 does not have oil, so it does not affect the detection function of the second pressure sensor 6, and ensures the detection accuracy of the second pressure sensor 6.

[0076] In this embodiment, further, as shown in Figure 5 The second pressure detection assembly further comprises a first support frame 9.

[0077] Specifically, the first support frame 9 is fixed to the inner side wall of the high-pressure oil tank 1 by means of a connecting piece; the first support frame 9 surrounds a fixing space 12, and the oil and gas filter is arranged in the fixing space 12.

[0078] Further, as shown inFigure 5 As shown, the first support frame 9 comprises a first bent portion 10 and a second bent portion 11; the first bent portion 10 and the second bent portion 11 are connected at a first preset angle, so that the first bent portion 10 and the second bent portion 11 enclose a fixed space 12.

[0079] Further, the first bent portion 10 is a first plate, and the second bent portion 11 is a second plate; the first plate and the second plate are connected perpendicularly, i.e., the first support frame 9 is an L-shaped structure, so that the first bent portion 10 and the second bent portion 11 enclose the fixed space 12.

[0080] Further, for the connection mode of the first plate and the second plate, one-piece molding can be adopted.

[0081] Preferably, the connecting piece is a bolt, and threaded holes are formed on the first bent portion 10 and the high-pressure oil tank 1 corresponding to the first bent portion 10; the bolt passes through the threaded holes and the first bent portion 10, so that the first support member is fixed to the inner side wall of the high-pressure oil tank 1.

[0082] In this embodiment, further, in combination with Figure 6 As shown, the heating assembly 4 comprises a heater 13 (the heater 13 is a PTC heater 13); the heater 13 is arranged at the bottom of the high-pressure oil tank 1 and can heat the high-pressure oil tank 1 to a preset temperature.

[0083] Specifically, the heating assembly 4 further comprises a second support frame 14; the second support frame 14 has a first connecting portion 15 and a second connecting portion 16; the first connecting portion 15 and the second connecting portion 16 are connected at a second preset angle;

[0084] One of the first connecting portion 15 and the second connecting portion 16 is connected to the heater 13, and the other is connected to the high-pressure oil tank 1.

[0085] Further, the first connecting portion 15 is a first connecting plate, and the second connecting portion 16 is a second connecting plate; the second preset angle is 90 degrees, i.e., the first connecting plate and the second connecting plate are connected perpendicularly, wherein the first connecting plate is connected to the bottom wall of the high-pressure oil tank 1 by a bolt, and the second connecting plate is connected to the heater 13 by a bolt.

[0086] Still further, threaded holes are formed on the first connecting plate and the second connecting plate for the bolt to pass through.

[0087] Preferably, two second support frames 14 are provided, and the two second support frames 14 are arranged at the two ends of the heater 13 along the length direction, so as to ensure that the two ends of the heater 13 are fixed to the high-pressure oil tank 1 by the support frames, which ensures the stability of the heater 13.

[0088] In the embodiment, further, the high-pressure oil tank pressure resistance detection device further comprises an oil inlet pipe 17, an oil outlet pipe 18, an oil inlet flow meter 19 and an oil outlet flow meter 20; the oil inlet pipe 17 and the oil outlet pipe 18 are respectively communicated with the high-pressure oil tank 1; the oil inlet flow meter 19 is arranged on the oil inlet pipe 17 and is used for measuring the oil speed of the oil inlet; and the oil outlet flow meter 20 is arranged on the oil outlet pipe 18 and is used for measuring the oil speed of the oil outlet.

[0089] Further, the flow meters are arranged at the oil inlet and outlet pipes 18 to measure the ratio of the pressure of the oil tank to the air pressure under different flow rates and to calculate the internal and external pressure difference in real time.

[0090] In addition, it is worth noting that, in actual use, in order to improve the efficiency of measurement, a controller can be arranged, which is connected with the heating assembly 4, the first pressure detection assembly 2 and the second pressure detection assembly through wires, and the temperature of the heating assembly 4 is controlled by the controller; the controller can also receive the first pressure and the second pressure and calculate the deformation amount, and the calculation of the deformation amount is a simple subtraction calculation, which is a function of the controller itself and does not improve the program of the controller.

[0091] Embodiment two

[0092] The application also provides a high-pressure oil tank pressure resistance detection system comprising the high-pressure oil tank pressure resistance detection device described above. Therefore, the high-pressure oil tank pressure resistance detection system has all the beneficial effects of the high-pressure oil tank pressure resistance detection device described above, and thus will not be described in detail.

[0093] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A high-pressure oil tank pressure resistance detection device for testing the pressure resistance of a high-pressure oil tank; characterized in that, The high-pressure oil tank pressure resistance testing device includes a first pressure detection component, a second pressure detection component, and a heating component; The first pressure detection component is disposed at a first preset position on the outer side wall of the high-pressure oil tank, and the second pressure detection component is disposed at a second preset position on the inner side wall of the high-pressure oil tank; The heating component is disposed on the outer wall of the oil tank and is used to heat the high-pressure oil tank; At a preset temperature, the first pressure detection component measures the first pressure on the outer wall of the high-pressure oil tank, and the second pressure detection component measures the second pressure inside the high-pressure oil tank; by comparing the dimensions of the high-pressure oil tank under the first pressure and the second pressure with the reference value of the high-pressure oil tank, the pressure resistance of the high-pressure oil tank can be obtained.

2. The high-pressure oil tank withstand voltage testing device according to claim 1, characterized in that, The first pressure detection component includes a first pressure sensor; The first pressure sensor is located at the first preset position on the outer wall of the high-pressure oil tank and is capable of measuring the first pressure on the outer wall of the high-pressure oil tank.

3. The high-pressure oil tank withstand pressure testing device according to claim 1, characterized in that, The second pressure detection component includes a second pressure sensor; The second pressure sensor is disposed at the second preset position on the inner wall of the high-pressure oil tank and is capable of measuring the second pressure inside the high-pressure oil tank.

4. The high-pressure oil tank withstand pressure testing device according to claim 3, characterized in that, The second pressure detection component also includes an oil and gas filter; The oil and gas filter includes a housing, a filter element, an air outlet, and a liquid inlet; The housing encloses an installation space, and the filter element is disposed within the installation space. The air outlet and the liquid inlet are respectively formed in the housing and located on both sides of the filter element. The oil-gas mixture is guided to the installation space through the liquid inlet, and the filter element can separate the oil-gas mixture, so that the separated gas is discharged through the air outlet. The detection port of the second pressure sensor is connected to the air outlet, and it can measure the second pressure inside the high-pressure oil tank.

5. The high-pressure oil tank withstand pressure testing device according to claim 4, characterized in that, The second pressure detection component also includes a first support frame; The first support frame is fixed to the inner wall of the high-pressure oil tank by a connector; The first support frame encloses a fixed space, and the oil and gas filter is disposed in the fixed space.

6. The high-pressure oil tank withstand pressure testing device according to claim 5, characterized in that, The first support frame includes a first bent portion and a second bent portion; The first bend and the second bend are connected at a first preset angle so that the first bend and the second bend enclose the fixed space.

7. The high-pressure oil tank withstand voltage testing device according to claim 1, characterized in that, The heating assembly includes a heater; The heater is located at the bottom of the high-pressure oil tank and is capable of heating the high-pressure oil tank to the preset temperature.

8. The high-pressure oil tank withstand voltage testing device according to claim 7, characterized in that, The heating assembly also includes a second support frame; The second support frame has a first connecting part and a second connecting part; The first connecting part and the second connecting part are connected at a second preset angle; One of the first connecting part and the second connecting part is connected to the heater, and the other is connected to the high-pressure oil tank.

9. The high-pressure oil tank withstand voltage testing device according to claim 1, characterized in that, The high-pressure oil tank pressure resistance testing device also includes an oil inlet pipe, an oil outlet pipe, an oil inlet flow meter, and an oil outlet flow meter; The oil inlet pipe and the oil outlet pipe are respectively connected to the high-pressure oil tank; the oil inlet flow meter is installed on the oil inlet pipe and is used to measure the oil speed of the incoming oil, and the oil outlet flow meter is installed on the oil outlet pipe and is used to measure the oil speed of the outgoing oil.

10. A high-pressure oil tank withstand pressure testing system, characterized in that, Includes the high-pressure oil tank pressure resistance testing device according to any one of claims 1-9.

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