Methanol detection device and vehicle

Abstract

The invention discloses a methanol detection device and a vehicle, and relates to the technical field of vehicles, the methanol detection device is used for being installed on a methanol oil tank, the methanol detection device comprises a collecting pipe and a detection assembly, and an inlet of the collecting pipe extends into the methanol oil tank and is arranged opposite to an oil filling pipe of the methanol oil tank; the detection assembly is arranged in the methanol oil tank and communicates with the outlet of the collecting pipe so that newly-filled methanol can be drained into the detection assembly from the oil filling pipe, and the detection assembly is used for detecting the purity of methanol. According to the technical scheme provided by the invention, the timeliness of detecting the purity of the newly filled methanol is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a methanol detection device and a vehicle. Background Technology

[0002] Methanol fuel, due to its green and pollution-free characteristics, is gradually becoming an important alternative energy choice for vehicles. In recent years, methanol vehicle technology has developed rapidly, and high-proportion methanol fuels such as M100 have been widely used in the commercial vehicle sector, proving their economic and environmental benefits.

[0003] Due to the limited number of methanol refueling stations, some users may refuel their vehicles at uncertified stations in order to ensure normal vehicle operation. The quality of this methanol is uncontrollable. Substandard methanol can lead to malfunctions such as difficulty starting methanol engines, prolonged methanol injection from the methanol injector nozzle, and valve and piston erosion.

[0004] Currently, methanol purity can be tested by sampling it at the vehicle and using gas chromatography. However, this method is cumbersome, time-consuming, and does not allow for timely testing of newly added methanol. Summary of the Invention

[0005] The main objective of this invention is to provide a methanol detection device and vehicle, which aims to improve the timeliness of detecting the purity of newly added methanol.

[0006] To achieve the above objectives, the present invention proposes a methanol detection device for installation in a methanol tank, comprising:

[0007] A collection pipe, the inlet of which extends into the methanol tank and is positioned opposite to the refueling pipe of the methanol tank; and

[0008] A detection component is provided in the methanol tank and connected to the outlet of the collection pipe to guide newly added methanol from the refueling pipe into the detection component, which is used to detect the purity of the methanol.

[0009] In one embodiment, the detection assembly includes a detection chamber, a heating module, and a current detection module. The detection chamber is connected to the outlet of the collection tube. The heating module is installed in the detection chamber to heat the methanol inside the detection chamber. The current detection module is installed in the detection chamber to detect the current value of the heated methanol inside the detection chamber. The methanol detection device also includes a controller, which is electrically connected to the heating module and the current detection module, respectively.

[0010] The controller controls the heating module to heat the methanol in the detection chamber to a first preset temperature, and then controls the current detection module to detect the current value of the heated methanol. When the current value is greater than a first threshold, the added methanol is determined to be unqualified; when the current value is less than or equal to the first threshold, the added methanol is determined to be qualified.

[0011] In one embodiment, the methanol detection device further includes a display module, which is electrically connected to the controller and is used to display the methanol detection results.

[0012] In one embodiment, the methanol detection device further includes a venting component for venting methanol from the detection chamber.

[0013] In one embodiment, the bottom of the detection chamber is provided with a reflux port, and the venting assembly includes a reflux pipe and a switch. One end of the reflux pipe is connected to the reflux port, and the other end is used to connect to the methanol tank. The switch is provided on the reflux pipe to control the opening and closing of the reflux pipe.

[0014] In one embodiment, the switching element is configured as a solenoid valve, which is electrically connected to the controller.

[0015] In one embodiment, the methanol detection device further includes an exhaust pipe connected to the detection component.

[0016] In one embodiment, the end of the exhaust pipe furthest from the detection component is connected to the refueling pipe of the methanol tank.

[0017] In one embodiment, both the collection pipe and the methanol tank are made of stainless steel, and the collection pipe is welded to the methanol tank.

[0018] The present invention also proposes a vehicle comprising:

[0019] The methanol fuel tank is equipped with a refueling hose; and

[0020] The methanol detection device has one end of the collection tube extending into the methanol tank and positioned opposite the refueling pipe, and the detection component located in the methanol tank.

[0021] The technical solution of this invention achieves vehicle-mounted methanol detection by installing the methanol detection device on the methanol fuel tank, integrating the methanol purity detection function into the vehicle. This facilitates user operation and improves the timeliness of methanol purity detection. The methanol detection device includes a collection pipe and a detection component. The inlet of the collection pipe extends into the methanol fuel tank and is positioned opposite the fuel filler hose. The detection component is located in the methanol fuel tank and connected to the outlet of the collection pipe, thereby guiding newly added methanol from the fuel filler hose into the detection component. The detection component is used to detect the purity of the methanol. Thus, by positioning the inlet of the collection pipe opposite the fuel filler hose, the methanol added to the vehicle is introduced into the detection component for detection in the first instance, enabling timely detection of the added methanol while the vehicle is being filled with methanol, thereby improving the timeliness of purity detection for newly added methanol. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of an embodiment of the methanol detection device provided by the present invention.

[0024] Explanation of icon numbers:

[0025] 100. Collection tube;

[0026] 200. Detection component; 210. Detection chamber; 211. Return port; 212. Exhaust port; 220. Heating module; 230. Current detection module;

[0027] 300. Controller;

[0028] 400. Drain assembly; 410. Return pipe; 420. Switch; 421. Solenoid valve;

[0029] 500. Exhaust pipe;

[0030] 600. Methanol fuel tank; 610. Fueling hose.

[0031] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0035] Methanol fuel, due to its green and pollution-free characteristics, is gradually becoming an important alternative energy choice for vehicles. In recent years, methanol vehicle technology has developed rapidly, and high-proportion methanol fuels such as M100 have been widely used in the commercial vehicle sector, proving their economic and environmental benefits.

[0036] Due to the limited number of methanol refueling stations, some users may refuel their vehicles at uncertified locations to ensure normal operation. The quality of this methanol is uncontrollable, and there is a certain probability that it may be substandard. Substandard methanol can cause malfunctions in methanol engines, such as difficulty starting, prolonged injection of methanol from the fuel injector nozzle, and valve and piston erosion. Repeated use of substandard methanol may cause irreversible damage to the methanol engine, necessitating its replacement. Understandably, methanol engines are relatively expensive, and replacement costs could exceed 20,000 yuan.

[0037] Currently, methanol purity can be tested by sampling it at the vehicle and using gas chromatography. However, this method is cumbersome, time-consuming, and unreliable for newly added methanol. Gas chromatography typically requires reagents, reagent bottles, and a chromatograph, and generally needs to be conducted in a laboratory, potentially necessitating a trip to the lab. This could result in vehicles using substandard methanol fuel, potentially damaging methanol engines.

[0038] In view of this, the present invention proposes a methanol detection device.

[0039] Please see Figure 1 In one embodiment of the present invention, the methanol detection device is installed in a methanol tank 600. The methanol detection device includes a collection pipe 100 and a detection component 200. The inlet of the collection pipe 100 extends into the methanol tank 600 and is arranged opposite to the refueling pipe 610 of the methanol tank 600. The detection component 200 is disposed in the methanol tank 600 and is connected to the outlet of the collection pipe 100 so as to guide the newly added methanol from the refueling pipe 610 to the detection component 200. The detection component 200 is used to detect the purity of the methanol.

[0040] Understandably, vehicles are equipped with a methanol fuel tank 600 for storing methanol fuel. In this invention, the methanol detection device is installed on the methanol fuel tank 600, thus directly integrating the methanol testing device into the vehicle. This avoids the need to drive to a specific laboratory for methanol purity testing or to equip the vehicle with additional methanol testing equipment. The vehicle is equipped with methanol purity testing functionality at the factory, which is convenient for users, improves the timeliness of methanol purity testing, prevents the use of substandard methanol fuel, and enhances the protection of the methanol engine.

[0041] Specifically, the methanol detection device includes a collection pipe 100 and a detection component 200. The collection pipe 100 has a connected inlet and outlet, with the inlet extending into the methanol tank 600 and the outlet connected to the detection component 200. The methanol tank 600 has a refueling pipe 610; when refueling with methanol, the gas station's refueling nozzle extends into the refueling pipe 610 to fill the methanol tank 600. The inlet of the collection pipe 100 is positioned opposite the refueling pipe 610, allowing methanol fuel to flow into the inlet of the collection pipe 100 simultaneously with the fuel entering the methanol tank 600 through the refueling pipe 610. The methanol fuel entering the inlet of the collection pipe 100 passes through the outlet of the collection pipe 100 into the detection component 200, which is used to detect the purity of the methanol.

[0042] In one embodiment, the detection component 200 is located outside the methanol tank 600. This avoids occupying part of the volume of the methanol tank 600, thus preventing it from taking up space for storing methanol, and also avoids the methanol inside the methanol tank 600 from affecting the detection component 200. Of course, in other embodiments, the detection component 200 may also be located inside the methanol tank 600. The following description uses the example of the detection component 200 being located outside the methanol tank 600.

[0043] In this way, by setting the inlet of the collection pipe 100 opposite to the refueling pipe 610 of the methanol tank 600, the methanol refueled in the vehicle can be introduced into the detection component 200 for detection in the first time. This enables timely detection of the methanol being refueled in the vehicle while it is being refueled, thereby improving the timeliness of detecting the purity of the newly refueled methanol.

[0044] Understandably, when choosing a methanol refueling station, users may select either a certified or uncertified station. The methanol at an uncertified station may be of acceptable quality or unacceptable quality. That is, the probability of a user receiving unacceptable methanol is low. Therefore, installing a methanol detection device in the methanol tank 600 and performing refueling and detection simultaneously will generally not prolong the refueling time. If the user receives unacceptable methanol, to protect the methanol engine, the user can choose to drain the unacceptable methanol from the methanol tank 600 and clean the tank, then continue driving through after-sales fuel delivery services. It should be noted that the methanol quality mentioned in this invention refers to the purity of the methanol.

[0045] The technical solution of this invention integrates the methanol purity detection function into the vehicle by installing the methanol detection device on the methanol fuel tank 600, thus facilitating user operation and improving the timeliness of methanol purity detection. The methanol detection device includes a collection pipe 100 and a detection component 200. The inlet of the collection pipe 100 extends into the methanol fuel tank 600 and is positioned opposite to the refueling pipe 610 of the methanol fuel tank 600. The detection component 200 is located in the methanol fuel tank 600 and connected to the outlet of the collection pipe 100, thereby guiding newly added methanol from the refueling pipe 610 into the detection component 200. The detection component 200 is used to detect the purity of the methanol. Thus, by positioning the inlet of the collection pipe 100 opposite to the refueling pipe 610 of the methanol fuel tank 600, the methanol added to the vehicle is introduced into the detection component 200 for detection in the first instance, enabling timely detection of the added methanol while the vehicle is being refueled, thereby improving the timeliness of the purity detection of newly added methanol.

[0046] In an embodiment of the present invention, the detection component 200 includes a detection chamber 210, a heating module 220, and a current detection module 230. The detection chamber 210 is connected to the outlet of the collection pipe 100. The heating module 220 is installed in the detection chamber 210 to heat the methanol in the detection chamber 210. The current detection module 230 is installed in the detection chamber 210 to detect the current value of the heated methanol in the detection chamber 210. The methanol detection device also includes a controller 300, which is electrically connected to the heating module 220 and the current detection module 230, respectively.

[0047] After the controller 300 controls the heating module 220 to heat the methanol in the detection chamber 210 to the first preset temperature, it controls the current detection module 230 to detect the current value of the heated methanol. When the current value is greater than the first threshold, the methanol is determined to be unqualified. When the current value is less than or equal to the first threshold, the methanol is determined to be qualified.

[0048] Understandably, methanol is an extremely weak conductor, with very low conductivity (approximately 1.5 × 10⁻⁶ at 25°C). -9 (S / m). However, when methanol contains ionic impurities (such as organic acids, amines, metal ions, etc.), its conductivity increases significantly. Simultaneously, heating increases the kinetic energy of methanol molecules, accelerating ion migration and thus enhancing conductivity. However, this effect is not significant in pure methanol due to its extremely low ion concentration; while in methanol containing impurities, increased temperature significantly promotes impurity ionization and ion movement, leading to increased current. That is, the lower the current of heated methanol, the higher its purity; conversely, the higher the current, the lower its purity.

[0049] One embodiment of the present invention utilizes the above-described characteristics, comprising a detection chamber 210, a heating module 220, and a current detection module 230 in the detection assembly 200. The detection chamber 210 is located outside the methanol tank 600 and connected to the outlet of the collection pipe 100, allowing newly added methanol to flow from the refueling pipe 610 to the detection chamber 210. The heating module 220 heats the methanol within the detection chamber 210. In one embodiment, the heating module 220 is located outside the detection chamber 210; in this case, the heating module 220 can be a heating film, heating wire, etc., wound around the detection chamber 210. In another embodiment, the heating module 220 is located inside the detection chamber 210; in this case, the heating module 220 can be a heating block, heating wire, etc. In one embodiment, the heating module 220 is electrically connected to a controller 300, which controls the operation of the heating module 220, thereby controlling the heating and stopping of the methanol. The current detection module 230 is located inside the detection chamber 210 and is used to detect the current value of the heated methanol. In one embodiment, the current detection module 230 includes two electrodes, the test ends of which extend into methanol.

[0050] When methanol flows into the detection chamber 210, the controller 300 controls the heating module 220 to heat the methanol in the chamber. When the methanol reaches a first preset temperature, the controller 300 controls the current detection module 230 to detect the current of the heated methanol. If the detected current value is greater than a first threshold, it indicates that the methanol current value is high, the methanol contains many impurities, the methanol purity is low, and the methanol quality is unqualified. If the detected current value is less than or equal to the first threshold, it indicates that the methanol current value is low, the methanol contains few impurities, the methanol purity is high, and the methanol quality is qualified.

[0051] Understandably, in one embodiment, the range of the first preset temperature is 35℃-45℃, that is, the first preset temperature can be 35℃, 40℃, or 45℃, and there is no limitation on the first preset temperature. It should be noted that the first preset temperature needs to be lower than the boiling point of methanol to avoid methanol evaporation. The first threshold can be adjusted according to different requirements for the purity of methanol, the first preset temperature value, and other factors, and is not limited here.

[0052] Of course, in other embodiments, based on the principle that different purity levels of methanol result in different dielectric constants and capacitances, the detection component 200 can be configured as a detection chamber 210 and a capacitance sensor located within the detection chamber 210, and the purity of methanol can be determined by using the detected capacitance value of methanol.

[0053] In embodiments of the present invention, the methanol detection device further includes a display module (not shown), which is electrically connected to the controller 300 and used to display the methanol detection results. This display module allows users to easily see the methanol detection results, thus facilitating user operation. In one embodiment, the display module is also the vehicle's dashboard, thus integrating the display of the methanol purity detection results directly onto the dashboard, which is beneficial for vehicle integration. Of course, in other embodiments, the display module can also be located on the user's terminal, meaning the user can view the methanol purity detection results on a mobile phone, tablet, or other device. In one embodiment, the methanol detection device also includes a buzzer electrically connected to the controller 300, which sounds an alarm to alert the user when the methanol purity detection result is unqualified.

[0054] In an embodiment of the present invention, the methanol detection device further includes a venting component 400, which is used to vent methanol from the detection chamber 210.

[0055] Understandably, a methanol detection device is required to test the purity of the newly added methanol each time it is refilled. To prevent methanol remaining in the detection device from affecting the current test results, the methanol detection device is also equipped with a venting component 400 to remove methanol from the detection chamber 210 after the methanol purity test is completed. Thus, by setting up the venting component 400 to empty the methanol already detected in the methanol collection and detection device, the methanol detected during the next refill is the methanol from the current refill.

[0056] In an embodiment of the present invention, the bottom of the detection chamber 210 is provided with a reflux port 211, and the venting assembly 400 includes a reflux pipe 410 and a switch 420. One end of the reflux pipe 410 is connected to the reflux port 211, and the other end is used to connect to the methanol tank 600. The switch 420 is provided on the reflux pipe 410 to control the opening and closing of the reflux pipe 410.

[0057] In the embodiment shown in the figures of this invention, the tested methanol is directly returned to the methanol tank 600, achieving methanol recovery and avoiding the need for additional methanol venting structures, as well as the waste and pollution caused by direct methanol discharge. Specifically, a return port 211 is provided at the bottom of the detection chamber 210. The venting assembly 400 includes a return pipe 410 and a switch 420. One end of the return pipe 410 is connected to the return port 211, and the other end extends into the methanol tank 600, thereby guiding the methanol in the detection chamber 210 into the methanol tank 600. Simultaneously, placing the return port 211 at the bottom of the detection chamber 210 facilitates the complete discharge of methanol from the detection chamber 210, improving the accuracy of subsequent methanol tests. Furthermore, the return pipe 410 is also equipped with a switch 420 to control the on / off state of the return pipe 410. Understandably, when methanol is being tested, switch 420 needs to be closed to cut off the flow of return pipe 410, ensuring that there is sufficient methanol in the testing chamber 210 to meet the testing requirements. After the methanol test is completed, switch 420 needs to be opened to connect return pipe 410 and methanol tank 600, so that the methanol in the testing chamber 210, as well as any methanol that may subsequently enter the testing chamber 210 from refueling pipe 610 and collection pipe 100, flows into methanol tank 600.

[0058] Of course, in other embodiments, the bottom of the detection chamber 210 is provided with an outlet, and the venting assembly 400 includes a discharge pipe connected to the outlet. The discharge pipe extends to the outside of the vehicle. When the methanol is filled, the discharge pipe discharges the methanol in the detection chamber 210 to the outside of the vehicle.

[0059] In an embodiment of the present invention, the switch 420 is configured as a solenoid valve 421, which is electrically connected to the controller 300. Thus, the controller 300 can control the opening and closing of the solenoid valve 421, thereby controlling the on / off state of the return pipe 410, achieving automatic evacuation of methanol from the detection chamber 210 and avoiding manual operation. Of course, in other embodiments, the switch 420 can also be a switch button, allowing the user to control the on / off state of the return pipe 410 by pressing the switch button.

[0060] In an embodiment of the present invention, the methanol detection device further includes an exhaust pipe 500, which is connected to the detection component 200. It is understood that after methanol enters the detection chamber 210, to ensure pressure balance within the chamber, an exhaust port 212 is provided at the top of the chamber. One end of the exhaust pipe 500 is connected to the exhaust port 212, and the other end is connected to the outside environment to balance the internal pressure during detection.

[0061] In an embodiment of the invention, the end of the exhaust pipe 500 furthest from the detection component 200 is connected to the refueling pipe 610 of the methanol tank 600. The end of the exhaust pipe 500 furthest from the detection chamber 210 is connected to the refueling pipe 610 of the methanol tank 600, thereby enabling the detection chamber 210 to achieve pressure balance through the exhaust pipe 500 and the refueling pipe 610. It is understood that when methanol is refueled, the gas station's refueling nozzle will extend into the refueling pipe 610. The connection point between the exhaust pipe 500 and the refueling pipe 610 is located on the side of the refueling nozzle's outlet away from the methanol tank 600, to prevent methanol from entering the detection chamber 210 through the exhaust pipe 500, thus preventing the exhaust pipe 500 from failing to vent.

[0062] In embodiments of the present invention, both the collection pipe 100 and the methanol tank 600 are made of stainless steel, and the collection pipe 100 is welded to the methanol tank 600. It is understood that stainless steel is resistant to methanol. In one embodiment, since both the collection pipe 100 and the methanol tank 600 are made of stainless steel, the collection pipe 100 and the methanol tank 600 can be connected by welding. This facilitates the connection between the collection pipe 100 and the methanol tank 600 while ensuring a tight seal between them. Of course, in other embodiments, the collection pipe 100 can also be made of fuel nylon tubing; in this case, a sealing element needs to be provided between the collection pipe 100 and the methanol tank 600.

[0063] In one embodiment, the reflux pipe 410 is also made of stainless steel, and the reflux pipe 410 is connected to the methanol tank 600 by welding. In one embodiment, one or more of the detection chamber 210, the exhaust pipe 500, and the refueling pipe 610 are all made of stainless steel.

[0064] The present invention also proposes a vehicle comprising a methanol fuel tank 600 and a methanol detection device. The specific structure of the methanol detection device is as described in the above embodiments. Since this vehicle adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here. The methanol fuel tank 600 is provided with a refueling pipe 610; one end of a collecting pipe 100 extends into the methanol fuel tank 600 and is arranged opposite to the refueling pipe 610; and a detection component 200 is disposed in the methanol fuel tank 600.

[0065] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A methanol detection device for installation in a methanol tank, characterized by, The application relates to a methanol detection device. The device comprises a collecting pipe, an inlet of which extends into a methanol tank and is arranged opposite to a refueling pipe of the methanol tank; and a detection assembly arranged in the methanol tank and connected with an outlet of the collecting pipe to guide newly refueled methanol from the refueling pipe into the detection assembly, the detection assembly being used for detecting the purity of the methanol. The detection assembly comprises a detection chamber connected with the outlet of the collecting pipe, a heating module arranged in the detection chamber and used for heating the methanol in the detection chamber, and a current detection module arranged in the detection chamber and used for detecting the current value of the heated methanol in the detection chamber; the methanol detection device further comprises a controller electrically connected with the heating module and the current detection module. The controller controls the heating module to heat the methanol in the detection chamber to a first preset temperature, and then controls the current detection module to detect the current value of the heated methanol; when the current value is greater than a first threshold value, the refueled methanol is determined to be unqualified; when the current value is less than or equal to the first threshold value, the refueled methanol is determined to be qualified.

2. The methanol detection device of claim 1, wherein, The methanol detection device further comprises a display module electrically connected with the controller and used for displaying the detection result of the methanol. The methanol detection device further comprises an emptying assembly used for emptying the methanol in the detection chamber.

3. The methanol detection device of claim 2, wherein, The bottom of the detection chamber is provided with a backflow port, the emptying assembly comprises a backflow pipe and a switch piece, one end of the backflow pipe is connected with the backflow port, and the other end is used for being connected with the methanol tank; the switch piece is arranged on the backflow pipe to control the opening and closing of the backflow pipe.

4. The methanol detection device of claim 2, wherein, The switch piece is configured as an electromagnetic valve, and the electromagnetic valve is electrically connected with the controller.

5. The methanol detection device of claim 4, wherein, The methanol detection device further comprises an exhaust pipe connected with the detection assembly.

6. The methanol detection device of claim 5, wherein, The exhaust pipe is connected with the refueling pipe of the methanol tank at the end far from the detection assembly.

7. The methanol detection device of claim 1, wherein, The collecting pipe and the methanol tank are both configured as stainless steel, and the collecting pipe is welded to the methanol tank.

8. The methanol detection device of claim 7, wherein, The application relates to a methanol detection device.

9. The methanol detection device of claim 1, wherein, The device comprises a methanol tank provided with a refueling pipe; and the methanol detection device according to any one of claims 1 to 9, one end of the collecting pipe of which extends into the methanol tank and is arranged opposite to the refueling pipe, and the detection assembly is arranged in the methanol tank.

10. A vehicle characterized by comprising: ​ ​ ​ ​

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