SYSTEM AND METHOD FOR TESTING MISCIBILITY OF BIOMASS-BASED BLENDED FUEL

Abstract

The present invention relates to a test system and method for a biomass-based blended fuel. The system comprises a feeding device, a mixing tank, a light-sensing device, and a control device; the feeding device comprises at least two fuel bottles; the fuel bottle is connected to the mixing tank by means of an oil pipe; the correspondingly connected oil pipe of each fuel bottle is provided with a flow valve; the light-sensing device comprises a laser disposed above the mixing tank, a light-reflecting mechanism disposed at the bottom in the mixing tank, and a light-sensing mechanism disposed at one side of the light reflecting mechanism; the output end of the light-sensing mechanism is signaled with the input end of the control device; the input end of the laser and the input end of the flow valve is separately signaled with the output end of the control device. According to the present invention, the structure is simple, and an ECU control device is used to carry out numerical control on each mechanism, and the miscibility of a blended fuel of a changed relationship between the miscibility of the blended fuel and ambient temperature can be rapidly measured by using the principle that the blended fuel has different refractive indexes in a miscible state and in a stratified state.

Claims

1. A system for testing the mutual solubility of biomass-based blended fuels, characterized in that the system includes a feeding device, a mixing tank, a light sensing device and a control device, the feeding device includes at least two fuel bottles, and the fuel bottles pass through the tubing connected to the mixing tank, each fuel bottle is provided with a flow valve on the correspondingly connected oil pipe; the light sensing device includes a laser arranged above the mixing tank, a reflecting mechanism arranged on the bottom surface of the mixing tank, and a reflecting mechanism on one side of the photosensitive mechanism, the output end of the photosensitive mechanism is signally connected to the input end of the control device, and the input end of the laser and the input end of the flow valve are respectively connected to the output end of the control device.

2. The system for testing the mutual solubility of biomass-based blended fuels according to claim 1, wherein the reflecting mechanism is a horizontally placed reflector, and the photosensitive mechanism is a plate with a photosensitive sensor on the surface of the plate. The surface of the plate with the photosensitive sensor is set toward the laser; the laser is set at a certain angle with the vertical line and the laser head of the laser is inclined toward the plate.

3. The system for testing the mutual solubility of biomass-based blended fuels according to claim 1, wherein one end of the oil pipe is connected to the corresponding fuel bottle, and the other end is connected to the end of the three-way pipe, and the three-way pipe is connected to the mixing tank.

4. The system for testing the mutual solubility of biomass-based blended fuels according to claim 1, wherein the system further comprises a water bathtub, the mixing tank is located in the water bathtub, and the temperature control mechanism and the first temperature are provided in the water bathtub. The output terminal of the first temperature detector is connected with the input terminal of the control device, and the input terminal of the temperature control mechanism is connected with the output terminal of the control device.

5. The system for testing the mutual solubility of biomass based blended fuels according to claim 1, wherein the mixing tank is provided with a stirrer and a second temperature detector, the output end of the second temperature detector and the control device The input end of the stirrer is connected to the output end of the control device.

6. The system for testing the mutual solubility of biomass-based blended fuels according to claim 1, wherein the system further comprises an LED display, and the input end of the LED display is connected to the output end of the control device.

7. The system for testing the mutual solubility of biomass-based blended fuels according to any one of claims 1-6, wherein the control device is an ECU control system.

8. The method for testing the mutual solubility test system of biomass-based blended fuels according to any one of claims 1-7 is characterized in that the steps are as follows: 1) Control the test system under a constant temperature condition and introduce them into different fuel bottles. Base liquid and additive solution, turn on the laser, the photosensitive mechanism senses the light spot reflected by the reflection mechanism through the photosensitive sensor, and marks its position signal as the base point through the control device, and then turns off the laser; 2) Quantitative injection of base into the mixing tank through the flow valve Liquid and make the base liquid in the mixing tank bury the reflective mechanism. When the liquid level in the mixing tank is calm and without bubbles, turn on the laser. The photosensitive mechanism senses the light spot reflected by the reflection mechanism through the photosensitive sensor and marks its position through the control device. The signal is A.sub.0, then turn off the laser; 3) Inject the additive solution into the mixing tank by volume unit through the flow valve. When the liquid level in the mixing tank is calm and there are no bubbles, turn on the laser, and the photosensitive mechanism induces reflection through the photosensitive sensor The light spot reflected by the mechanism, and its position signal is marked as A.sub.1 by the control device, and then the laser is turned off; 4) Repeat step 3) to inject the same volume unit of additive solution into the mixing tank, and record the position signal of the corresponding light spot respectively of A.sub.2, A.sub.3, A.sub.4 . . . A.sub.n, A.sub.0 to A.sub.n corresponding to the spot position change regularly displacement relationship with respect to the base point corresponding to the spot positions, to be A.sub.n+1. When the displacement relationship of the corresponding spot position relative to the base point corresponding to the spot position changes irregularly, it means that the liquid in the mixing tank has a delamination phenomenon leading to a sudden change in refractive index. The control device calculates the additive solution before the delamination in the mixing tank occurs. The cumulative injection volume of the fuel gets the miscible ratio of the blended fuel.

9. The method for testing the mutual solubility test system of biomass-based blended fuels according to any one of claims 1-7, characterized in that, the steps are as follows: 1) Introduce the base fluid and additive solution into different fuel bottles, and turn on the laser, The photosensitive mechanism senses the light spot reflected by the reflection mechanism through the photosensitive sensor, and marks its position signal as the base point through the control device, and then turns off the laser; 2) Inject the base liquid and additive solution into the mixing tank in proportion and quantitatively through the flow valve, and Make the liquid in the mixing tank bury the reflective mechanism. When the liquid level in the mixing tank is calm, without bubbles and layering, turn on the laser. The photosensitive mechanism senses the light spot reflected by the reflection mechanism through the photosensitive sensor, and marks its position through the control device The signal is A.sub.0, and then the laser is turned off; 3) The temperature of the mixing tank is raised or lowered in units of temperature. When the liquid level in the mixing tank is calm and there are no bubbles, turn on the laser, and the photosensitive mechanism is reflected by the photosensitive reflection mechanism by he photosensitive sensor And mark its position signal as A.sub.1 through the control device, and then turn off the laser; 4) Repeat step 3) to increase or decrease the temperature of the mixing tank with the same temperature unit gradient, and respectively record the position of the corresponding spot after temperature adjustment signal to A.sub.2, A.sub.3, A.sub.4 . . . A.sub.n, A.sub.0 to A.sub.n corresponding to the light spot position with respecting to the relationship between the base point displacement corresponding to the spot position in the copolyesters to be A.sub.n+1. corresponding to the spot When the displacement relationship of the position relative to the position of the light spot corresponding to the base point changes irregularly, it means that the liquid in the mixing tank has a stratification phenomenon resulting in a sudden change in refractive index. Recording the temperature information at this time can reconcile the relationship between the mutual solubility of the fuel and the temperature.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 is a schematic structural diagram of a system for testing the mutual solubility of biomass base blends and fuels in specific embodiments;

[0025] FIG. 2 is a light spot displacement diagram for measuring the miscibility ratio of gamma valerolactone and gasoline by using the mutual solubility test system of biomass-based blended fuel in a specific embodiment;

[0026] FIG. 3 is a schematic diagram of the light spot displacement measured by the mutual solubility test system of biomass-based blended fuel in a specific embodiment on the relationship between the mutual solubility of gamma valerolactone and gasoline and the environmental temperature.

DETAILED DESCRIPTION OF THE INVENTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0028] As shown in FIG. 1, a system for testing the mutual solubility of biomass base blend fuels, the system includes a feeding device, a mixing tank, a light sensing device, a water bathtub, an LED display 5 and a control device:

[0029] The feeding device includes two fuel bottles 41, the bottom of each fuel bottle 41 is correspondingly connected with an oil pipe, the oil pipe is connected to the mixing tank 2 through a three-way pipe 43, and each fuel bottle 41 is correspondingly connected with a volume flow valve on the oil pipe 42;

[0030] The light sensing device includes a laser 31, a light-reflecting mechanism 32, and a photosensitive mechanism 33. The laser 31 is arranged above the mixing tank 2 and arranged at a certain angle with the vertical line; the light-reflecting mechanism 32 is horizontally arranged on the mixing tank 2; the reflector on the inner bottom surface; the photosensitive mechanism 33 is a plate body with a photosensitive sensor arranged on the plate surface. The plate is arranged on the side of the reflective mechanism 32 and the plate surface with the photosensitive sensor faces the laser 31, and the laser head of the laser 31 faces the board is inclined.

[0031] The mixing tank 2 is located in the water bathtub 1, a temperature control mechanism 12 and a first temperature detector 11 are arranged in the water bathtub 1, and a stirrer 21 and a second temperature detector 22 are arranged in the mixing tank 2.

[0032] The control device is the ECU control device 6. The light sensor output end of the photosensitive mechanism 33 is signal-connected to the input end of the ECU control device 6, and the input end of the laser 31 and the input end of the volume flow valve 42 are respectively connected to the output of the ECU control device 6 of terminal signal connection. The output terminals of the first temperature detector 11 and the second temperature detector 22 are respectively connected to the input terminal of the ECU control device 6, and the input terminals of the temperature control mechanism 12 and agitator 21 are respectively connected to the output of the ECU control device 6. The input terminal of the LED display 5 is connected to the output terminal of the ECU control device 6.

[0033] Taking γ valerolactone as an example, using the above-mentioned biomass-based blending fuel mutual solubility test system to determine the mutual solubility ratio of γ valerolactone and gasoline, the steps are as follows:

[0034] 1) Introduce 200 volumes of gasoline and 200 volumes of γ valerolactone into the two fuel bottles 41 respectively. Gasoline is the base liquid, and γ valerolactone is the additive solution. Coolant is injected into the water bathtub 1, and the ECU control device 6 controls the temperature. After the mechanism 12 works and the coolant temperature reaches 20° C., the ECU control device 6 controls the laser 31 to turn on. The light beam emitted by the laser 31 is reflected by the reflective mechanism 32 to the plate of the photosensitive mechanism 33. The photosensitive sensor senses the light spot and passes the control device. Mark its position signal as the base point, and then the ECU control device controls the laser to turn off;

[0035] 2) The ECU control device controls the flow valve to open and injects 100 volumes of base liquid into the mixing tank and makes the base liquid in the mixing tank bury the reflective mechanism, and wait until the second temperature detector detects that the base liquid temperature in the mixing tank reaches 20° C. and in its calm and bubble-free state, the ECU control device controls the laser to turn on. The beam emitted by the laser is refracted by the base liquid and is reflected on the plate of the photosensitive mechanism through the reflective mechanism. The photosensitive sensor senses the light spot reflected by the reflective mechanism and passes through the control device. Mark its position signal as A.sub.0, and then the ECU control device controls the laser to turn off;

[0036] 3) The ECU control device controls the flow valve to open and injects 1 volume of additive solution into the mixing tank. The ECU control device controls the agitator to stir the liquid in the mixing tank for a certain period of time, and the second temperature detector detects the liquid in the mixing tank. When the temperature reaches 20° C. and it is calm and bubble-free, the ECU control device controls the laser to turn on. The beam emitted by the laser is refracted by the liquid and reflected on the plate of the photosensitive mechanism through the reflective mechanism. The photosensitive sensor senses the light spot reflected by the reflective mechanism. And mark its position signal as A.sub.1 through the control device, and then the ECU control device controls the laser to turn off;

[0037] 4) Repeat step 3) to inject 1 volume unit of additive solution into the mixing tank, and record the position signals of the corresponding light spots as A.sub.2, A.sub.3, A.sub.4 . . . A.sub.n, A.sub.0 to A.sub.n the displacement relationship between the corresponding spot position and the spot position corresponding to the base point changes regularly, and the displacement relationship between the spot position corresponding to A.sub.n+1 and the spot position corresponding to the base point changes irregularly (as shown in FIG. 2). Time means that the liquid in the mixing tank has stratified, resulting in a sudden change in refractive index, which means that the base liquid and the additive solution are no longer mutually soluble in the current temperature state. The control device calculates the additive solution before the stratification in the mixing tank occurs. The accumulative injection volume is displayed on the LED display: ambient temperature 20° C., gasoline 100 volume units and γ valerolactone 35 volume units.

[0038] The test system of the present invention can also be used to determine the relationship between the mutual solubility of the blended fuel and the ambient temperature. The method is as follows:

[0039] 1) Introduce 200 volumes of gasoline and 200 volumes of γ valerolactone into the two fuel bottles respectively. The gasoline is set as the base fluid and the γ valerolactone is set as the additive solution. Coolant is injected into the water bathtub, and the ECU control device controls the temperature control mechanism. After working and making the coolant temperature reach 0° C., the ECU control device controls the laser to turn on, the beam emitted by the laser is reflected on the plate of the photosensitive mechanism through the reflective mechanism, the photosensitive sensor senses the light spot, and the control device marks its position signal as the base point. Then the ECU control device controls the laser to turn off;

[0040] 2) The ECU control device controls the flow valve to open and injects the base liquid and additive solution into the mixing tank at a volume ratio of 100:35, and makes the liquid in the mixing tank bury the reflective mechanism, and wait for the second temperature detector to detect the inside of the mixing tank. When the liquid temperature reaches 0° C. and it is calm and bubble-free, the ECU control device controls the laser to turn on. The light beam emitted by the laser is refracted by the mixed liquid and reflected on the plate of the photosensitive mechanism through the reflective mechanism. The photosensitive sensor senses the reflection of the reflective mechanism. Light spot, and mark its position signal as A.sub.0 by the control device , and then the ECU control device controls the laser to turn off;

[0041] 3) The ECU control device controls the temperature control mechanism to work and increases the coolant temperature by 1° C. After the second temperature detector detects that the temperature of the liquid in the mixing tank reaches the corresponding temperature and is calm and without bubbles, the ECU control device controls the laser to turn on. The light beam emitted by the laser is refracted by the liquid and reflected on the plate of the photosensitive mechanism through the reflective mechanism. The photosensitive sensor senses the light spot reflected by the reflective mechanism and marks its position signal as A.sub.1 through the control device, and then the ECU control device controls the laser shut down;

[0042] 4) Repeat step 3) to perform a gradient heating of the mixing tank (if the base point is set at a high temperature, a gradient cooling method can also be used), and respectively record the position signals of the corresponding spots after heating as A.sub.2, A.sub.3, A.sub.4, . . . A.sub.n, A.sub.0 to A.sub.n corresponding to the light spot position with respect to a A.sub.0 displacement relationship of the spot positions corresponding to change regularly, to be A.sub.n+1 corresponding to the spot position relative to A.sub.0 corresponding to the spot position. When the displacement relationship changes irregularly (as shown in FIG. 3), it means that the liquid in the mixing tank has a delamination phenomenon leading to a sudden change in refractive index, which means that the base liquid and the additive solution are no longer miscible in the current temperature state, and the mixing tank. The second temperature detector inside detects the d temperature information in the mixing tank and displays the corresponding data through the LED display: temperature 20° C.