A diesel sulfur tester

Abstract

The utility model relates to diesel oil sulfur measurement technical field, concretely is a kind of diesel oil sulfur meter, including base, its top both sides are fixedly connected with vertical rack, and the top of two racks is reversibly provided with box cover through rotating mechanism;Dark box, it is set in the just below box cover through lifting mechanism, and the inner wall left side upper end of dark box is provided with filter mechanism. The utility model is used in cooperation with conical filter hopper and conical flow guide shell, effectively filters out solid particles and other impurities in oil product, prevents pollutants from directly entering the transmittance dish, solves the problem that the spectrum analysis is distorted due to impurity interference in prior art.

Description

Technical Field

[0001] This utility model relates to the field of diesel sulfur determination technology, specifically a diesel sulfur analyzer. Background Technology

[0002] Sulfur content is an important indicator of gasoline and diesel quality. Clean gasoline and diesel need to have their sulfur content strictly controlled before entering the market, so sulfur analyzers are needed to test diesel.

[0003] For example, the sulfur content testing device for gasoline and diesel fuel disclosed in authorization announcement number CN214472731U includes a dark chamber, a base connected by threads at the bottom of the dark chamber, a light-transmitting dish inside the dark chamber, and a movable part at the bottom of the light-transmitting dish. The beneficial effects of this utility model after adopting the above technical solution are: it can reduce the leakage of oil odor, while reducing the mixing of components from the outside air that affect the test results; it is convenient to operate, has high work efficiency, strong practicality, and is easy to promote and use.

[0004] While the aforementioned patent can reduce the leakage of oil odor, it lacks the necessary oil inlet filtration structure at the inlet of the tested oil, and cannot filter out impurities such as solid particles and trace amounts of moisture that may be carried in the oil. These contaminants will directly contaminate the transmissive dish, interfere with the accuracy of spectral analysis, and cause distortion of sulfur content detection results. Utility Model Content

[0005] The purpose of this invention is to provide a diesel sulfur analyzer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A diesel sulfur analyzer, comprising

[0008] The base has vertical frames fixedly connected to both sides of its top, and a box cover can be flipped between the tops of the two frames via a rotating mechanism.

[0009] The dark box is positioned directly below the box cover via a lifting mechanism, and a filtering mechanism is provided on the upper left side of the inner wall of the dark box.

[0010] Preferably, the rotating mechanism includes a motor fixedly connected to the upper part of the right frame and two electric push rods fixedly connected symmetrically to the upper part of the left frame. The top ends of both frames are rotatably connected to a crossbar via bearings. The opposite ends of the two crossbars are fixedly connected to the cover. The output shaft of the motor is fixedly connected to the right crossbar. Slots are provided at both ends of the left crossbar, and the output shaft of the electric push rod can be extended and inserted into the slots.

[0011] Preferably, the lifting mechanism includes an electric push rod that is vertically fixed to the top of the two crossbeams, and a fixing block that is symmetrically fixed to the outside of the bottom two sides of the dark box. The output shaft of the electric push rod is fixedly connected to the fixing block. A rectangular sealing groove is provided at the top of the dark box, and a rectangular sealing strip that matches the rectangular sealing groove is fixedly connected to the lower end face of the box cover.

[0012] Preferably, a rectangular limiting frame is fixedly connected to the bottom of the dark box, and a light-transmitting dish is detachably installed in the rectangular limiting frame. A spectral probe is fixedly connected to the middle of the box cover. An oil delivery pipe is fixedly connected to the left side of the box cover, and an oil extraction pipe is fixedly connected to the right end. When the dark box and the box cover are closed, the bottom end of the oil extraction pipe extends into the light-transmitting dish and is located inside and below its right side.

[0013] Preferably, the filtration mechanism includes a support base that is horizontally fixed to the upper end of the left inner wall of the dark box. A fixed plate is detachably connected to the support base by bolts. A movable hole is opened through the middle of the fixed plate. When the dark box and the box cover are closed, the bottom end of the oil delivery pipe extends into the movable hole. A conical filter bucket is fixedly connected to the bottom end of the fixed plate. A conical guide shell is fixedly connected to the outside of the conical filter bucket. When the dark box and the box cover are closed, the bottom end of the conical guide shell extends into the light-transmitting dish and is located on the upper left side inside it.

[0014] Preferably, a safety valve and a pressure sensor are fixedly connected to the top two sides of the front of the box cover, and a controller is fixedly connected to the outside of the frame on the right side.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This diesel sulfur analyzer effectively filters out solid particles and other impurities in the oil by using a conical filter funnel and a conical guide shell in combination, preventing contaminants from directly entering the transmission dish, thus solving the problem of spectral analysis distortion caused by impurities in existing technologies.

[0017] 2. This diesel sulfur analyzer, through the combined use of a crossbeam, slot and electric push rod II, allows the tank cover to be rotated 90 degrees and positioned in the maintenance station, so that the spectral probe and other supporting components at the bottom of the tank cover are fully exposed in the operator's field of vision, solving the problem of obstructed vision caused by the need for maintenance personnel to bend over or turn to the side in the prior art. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the dark box structure of this utility model;

[0020] Figure 3For the present utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 For the present utility model Figure 2 Enlarged diagram of point B in the middle.

[0022] In the diagram: 1. Base; 2. Frame; 3. Cover; 4. Dark box; 5. Motor; 6. Electric push rod II; 7. Horizontal frame; 8. Slot; 9. Electric push rod I; 10. Fixing block; 11. Rectangular sealing groove; 12. Rectangular sealing strip; 13. Rectangular limiting frame; 14. Light-transmitting dish; 15. Spectrometer probe; 16. Oil delivery pipe; 17. Oil extraction pipe; 18. Support base; 19. Fixing plate; 20. Movable hole; 21. Conical filter bucket; 22. Conical guide shell; 23. Safety valve; 24. Pressure sensor; 25. Controller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-4 As shown, this utility model provides a technical solution:

[0025] A diesel sulfur analyzer includes a base 1 with vertical frames 2 fixedly connected to both sides of its top. A cover 3 is pivotally mounted between the tops of the two frames 2 via a rotating mechanism. The rotating mechanism includes a motor 5 fixedly connected to the upper outer side of the right frame 2 and two electric push rods 6 symmetrically fixedly connected to the upper outer side of the left frame 2. A crossbeam 7 is rotatably connected to the tops of both frames 2 via bearings. One end of each crossbeam 7 is fixedly connected to the cover 3. The output shaft of the motor 5 is fixedly connected to the right crossbeam 7. Slots 8 are provided at both ends of the left crossbeam 7, and the output shafts of the electric push rods 6 can be extended and retracted into the slots 8. A dark box 4 is mounted on the cover 3 via a lifting mechanism. Directly below, the lifting mechanism includes an electric push rod 9 vertically fixedly connected to the top of the two crossbeams 7, and fixed blocks 10 symmetrically fixedly connected to the outside of the bottom two sides of the dark box 4. The output shaft of the electric push rod 9 is fixedly connected to the fixed blocks 10. A rectangular sealing groove 11 is opened at the top of the dark box 4. A rectangular sealing strip 12 matching the rectangular sealing groove 11 is fixedly connected to the lower end face of the box cover 3. A rectangular limiting frame 13 is fixedly connected to the bottom of the dark box 4. A light-transmitting dish 14 is detachably installed in the rectangular limiting frame 13. A spectral probe 15 is fixedly connected to the middle of the box cover 3. The spectral probe 15 is connected to an external spectrometer. During the detection process, the spectral probe 15 acquires the oil in the light-transmitting dish 14. Data is transmitted to a spectrometer for analysis and results acquisition. An oil supply pipe 16 is fixedly connected to the left side of the cover 3, and an oil extraction pipe 17 is fixedly connected to the right end. The oil supply pipe 16 and the oil extraction pipe 17 are connected to an external oil supply system via corrugated pipes or hoses. When the dark box 4 is closed with the cover 3, the bottom end of the oil extraction pipe 17 extends into the light-transmitting dish 14 and is located below its right side. A filter mechanism is provided on the upper left side of the inner wall of the dark box 4. The filter mechanism includes a support base 18 horizontally fixed to the upper left side of the inner wall of the dark box 4. A fixed plate 19 is detachably connected to the support base 18 via bolts. A movable hole 20 is opened through the middle of the fixed plate 19. When the dark box 4 is closed with the cover 3, the bottom of the oil supply pipe 16... The end extends into the movable hole 20. The bottom end of the fixed plate 19 is fixedly connected to the conical filter 21. The outside of the conical filter 21 is fixedly connected to the conical guide shell 22. When the dark box 4 and the box cover 3 are closed, the bottom end of the conical guide shell 22 extends into the light-transmitting dish 14 and is located on the upper left side inside it. The top two sides of the front of the box cover 3 are fixedly connected to the safety valve 23 and the pressure sensor 24 respectively. The outside of the right frame 2 is fixedly connected to the controller 25. During the detection process, the safety valve 23 automatically adjusts the pressure in the chamber. The pressure sensor 24 monitors the pressure data in real time and feeds it back to the controller 25. When the pressure exceeds the set threshold, the controller 25 immediately interrupts the detection process and starts the safety valve 23 to release the pressure.

[0026] In this embodiment, the use of the conical filter hopper 21 and the conical guide shell 22 effectively filters out solid particles and other impurities in the oil, preventing contaminants from directly entering the light transmittance dish 14, thus solving the problem of spectral analysis distortion caused by impurity interference in the prior art.

[0027] Furthermore, by using the crossbar 7, slot 8 and electric push rod 6 in combination, the cover 3 can be rotated 90 degrees and positioned in the maintenance station, so that the spectral probe 15 and other supporting components at the bottom of the cover 3 are fully exposed in the operator's field of vision, thus solving the problem of obstructed vision for maintenance personnel who need to bend over or turn to the side in the prior art.

[0028] Working principle: During routine testing, the electric push rod 9 lifts the dark chamber 4, causing the rectangular sealing strip 12 and the rectangular sealing groove 11 to fit tightly together to form a sealed testing chamber. The oil supply system delivers the diesel fuel to be tested into the conical filter hopper 21 through the oil pipe 16 for filtration. The filtered diesel fuel flows into the light transmission dish 14 through the conical guide shell 22. The spectral probe 15 collects the optical data of the oil in real time and transmits it to an external spectrometer to analyze the sulfur content. After the test is completed, the oil supply system switches to suction mode, and the diesel fuel in the light transmission dish 14 is completely extracted through the oil extraction pipe 17. When the filter mechanism needs to be cleaned, the electric push rod 9 lowers and separates the dark chamber 4. The operator can remove the bolts on the support base 18 to remove the conical filter hopper 21 attached to the fixed plate 19. Maintenance is performed on the conical guide shell 22. When the spectral probe 15 or other components on the cover 3 need to be repaired, the quick connectors of the oil supply pipe 16 and the oil extraction pipe 17, as well as the electrical connection lines of the spectral probe 15, must be disconnected first. The controller 25 first controls the output shafts of the two electric push rods 6 to fully retract from the slot 8, and then starts the motor 5 to drive the crossbeam 7 to rotate so that the cover 3 flips forward 90 degrees to the maintenance position. At this time, the output shafts of the electric push rods 6 extend again and abut against the two end faces of the left crossbeam 7 to form a mechanical limit, ensuring that the cover 3 remains stable and does not swing back during maintenance. After maintenance is completed, the motor 5 reverses to reset the cover 3, and the output shafts of the electric push rods 6 re-insert into the slot 8 to lock the crossbeam 7. The entire system returns to standby mode.

[0029] In the specific implementation of this technical solution, the electric push rod 9, the electric push rod 6, and the motor 5 can be configured with conventional synchronous controllers (such as PLC synchronous control modules, servo synchronous controllers, or CAN bus synchronous systems). Although such synchronous control devices are not described in detail in this technical solution, they are synchronous control schemes that can be conventionally selected by those skilled in the art based on actual load balancing requirements. Their signal transmission methods and synchronization accuracy requirements follow well-known technologies in this field and do not affect the implementation of the core innovation of this solution. In practical applications:

[0030] Two electric push rods 9 are connected in parallel through the synchronous output port of controller 25, and closed-loop feedback control is used to ensure the smooth lifting and lowering of dark box 4;

[0031] The two electric push rods 26 achieve synchronized pin movements through the linkage control module of controller 25;

[0032] Motor 5 achieves precise angle control through the PWM speed control module of controller 25.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A diesel sulfur analyzer, characterized in that: include The base (1) has vertical frames (2) fixedly connected to both sides of its top. The top of the two frames (2) can be flipped to have a cover (3) installed between them via a rotating mechanism. The dark box (4) is located directly below the box cover (3) by means of a lifting mechanism. A filter mechanism is provided on the upper left side of the inner wall of the dark box (4). The rotating mechanism includes a motor (5) fixedly connected to the upper part of the right frame (2) and two electric push rods (6) symmetrically fixedly connected to the upper part of the left frame (2). The top of each of the two frames (2) is rotatably connected to a crossbeam (7) through a bearing. The opposite ends of the two crossbeams (7) are fixedly connected to the cover (3). The output shaft of the motor (5) is fixedly connected to the right crossbeam (7). The two ends of the left crossbeam (7) are provided with slots (8). The output shaft of the electric push rod (6) can be extended and inserted into the slot (8). The lifting mechanism includes an electric push rod (9) vertically fixedly connected to the top of the two crossbars (7), and a fixing block (10) symmetrically fixedly connected to the outside of the bottom two sides of the dark box (4). The output shaft of the electric push rod (9) is fixedly connected to the fixing block (10). A rectangular sealing groove (11) is opened at the top of the dark box (4). A rectangular sealing strip (12) matching the rectangular sealing groove (11) is fixedly connected to the lower end face of the box cover (3). The bottom of the dark box (4) is fixedly connected to a rectangular limiting frame (13), and a light-transmitting dish (14) is detachably installed in the rectangular limiting frame (13). A spectral probe (15) is fixedly connected to the middle of the box cover (3). An oil delivery pipe (16) is fixedly connected to the left side of the box cover (3), and an oil extraction pipe (17) is fixedly connected to the right end. When the dark box (4) and the box cover (3) are closed, the bottom end of the oil extraction pipe (17) extends into the light-transmitting dish (14) and is located inside and below its right side. The filtration mechanism includes a support base (18) that is horizontally fixed to the upper end of the left inner wall of the dark box (4). A fixed plate (19) is detachably connected to the support base (18) by bolts. A movable hole (20) is opened through the middle of the fixed plate (19). When the dark box (4) and the box cover (3) are closed, the bottom end of the oil pipe (16) extends into the movable hole (20). A conical filter bucket (21) is fixedly connected to the bottom end of the fixed plate (19). A conical guide shell (22) is fixedly connected to the outside of the conical filter bucket (21). When the dark box (4) and the box cover (3) are closed, the bottom end of the conical guide shell (22) extends into the light-transmitting dish (14) and is located on the upper left side inside it. Safety valves (23) and pressure sensors (24) are fixedly connected to the top two sides of the front of the cover (3), and a controller (25) is fixedly connected to the outside of the frame (2) on the right side.

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