A fuel oil rapid detection device

Abstract

The invention discloses a fuel oil rapid detection device, which relates to the technical field of fuel oil detection, and comprises a prismatic glass cover, wherein a fuel oil nozzle for spraying oil mist is arranged inside the prismatic glass cover, a laser transmitter and a signal receiver are arranged outside the prismatic glass cover, and an oil suction assembly arranged inside the prismatic glass cover, wherein the oil suction assembly comprises an oil suction part and a plurality of linear driving parts, wherein the oil suction part crosses the inside of the prismatic glass cover, and the linear driving part drives the oil suction part to move vertically inside the prismatic glass cover, so that the oil suction part absorbs the oil mist inside the prismatic glass cover; by arranging the oil suction assembly, after completing the detection data of the oil mist, before the next test, the linear driving part drives the oil suction part to move inside the prismatic glass cover, and the oil suction part absorbs the oil mist inside the prismatic glass cover, so as to avoid the oil stains remaining in the prismatic glass cover interfering with the next detection during the subsequent test, thereby affecting the accuracy of the detection data.

Description

Technical Field

[0001] The invention relates to the technical field of fuel oil detection, and in particular to a fuel oil rapid detection device. Background Art

[0002] Fuel oil is widely used in power generation in power plants, ship boiler fuel, heating furnace fuel, metallurgical furnace and other industrial furnace fuel. After the existing fuel oil is produced, in order to ensure its safety, efficiency and compliance in different applications, it is often necessary to test the properties of the fuel oil. When testing the properties of the existing fuel oil, a comprehensive test of the fuel nozzle is usually carried out to study the properties of the fuel such as the atomization particle size, injection velocity and spray cone angle. The existing comprehensive test of the fuel nozzle mainly includes a laser Doppler velocimeter system, a signal receiver, a fuel nozzle and a prismatic glass cover. The prismatic glass cover covers the fuel nozzle, and the laser Doppler velocimeter system and the signal receiver are located outside the prismatic glass cover. When the fuel nozzle sprays fuel to form a conical oil mist, the laser Doppler velocimeter system emits a laser to illuminate the conical oil mist sprayed from the fuel nozzle, and then the signal receiver receives the light signal from the laser Doppler velocimeter system to complete the collection and recording of the test data.

[0003] For example, a patent with publication number CN219302330U and publication date July 4, 2023 discloses a fuel oil flash point detector, including a bottom box, an electric push rod is installed on the bottom wall of the inner cavity of the bottom box, and one end of the push rod of the electric push rod passes through the top of the bottom box, a boss is installed on the top of the electric push rod, and a first insulating rod is installed on the bottom of the boss, and a heat insulation board is installed on the outside of the first insulating rod, and a plurality of groups of air holes are opened through the top of the heat insulation board, and an insulating cylinder is installed at the bottom of the heat insulation board, and a plurality of groups of through holes are opened through the bottom of the insulation cylinder; the patent is equipped with a first insulating rod, a heat insulation board, air holes, and through holes, the air holes are used for the circulation of air, and the through holes are used for the circulation of oil vapor to ensure that air and oil vapor can be evenly mixed, the heat insulation board is used to carry the ignition device, so that the ignition device is located in the inner cavity of the insulating cylinder, to ensure that when the ignition device is ignited, most of the heat is blocked by the heat insulation board to avoid a large amount of heat from damaging the overall flash point detection equipment.

[0004] Among them, in order to improve the accuracy of the test data, it is necessary to record multiple sets of detection data. At this time, the fuel nozzle often sprays fuel multiple times, and then the laser Doppler velocimeter and the signal receiver are used to detect and receive multiple fuel data. Then, when the fuel nozzle sprays fuel multiple times, the fuel sprayed by the fuel nozzle in the prismatic glass cover cannot be discharged in time. During the subsequent data detection, a small amount of the previously sprayed fuel mist still remains in the air. This part of the oil mist will also react with the laser emitted by the laser Doppler velocimeter. Obviously, this affects the accuracy of the test data such as the atomization particle size and the spray cone angle received by the signal receiver. Summary of the invention

[0005] The purpose of the present invention is to provide a fuel oil rapid detection device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A fuel oil rapid detection device, a fuel oil rapid detection device, comprising a prismatic glass cover, a fuel nozzle for spraying oil mist is arranged inside the prismatic glass cover, a laser transmitter and a signal receiver are arranged outside the prismatic glass cover, and also includes an oil suction component arranged in the prismatic glass cover, the oil suction component includes an oil suction part and a plurality of linear driving parts, the oil suction part crosses the inside of the prismatic glass cover, and the linear driving part drives the oil suction part to move vertically in the prismatic glass cover, so that the oil suction part absorbs the oil mist inside the prismatic glass cover.

[0008] The oil absorption part comprises two grid supports which are spaced apart from each other. The two grid supports have the same shape and are both adapted to the cross section of the prism glass cover. Oil absorption gauze is sandwiched between the grid supports.

[0009] As mentioned above, an avoidance hole is opened on the oil suction part, the avoidance hole corresponds to the position of the fuel nozzle, the avoidance hole is located directly below the fuel nozzle, and a one-way deflection part is arranged in the avoidance hole, which deflects downward based on the extrusion of the fuel nozzle to open the avoidance hole.

[0010] As mentioned above, a compensation spring is arranged between the linear drive part and the oil suction part, the compensation spring is arranged vertically, and the two ends of the compensation spring are respectively connected to the linear drive part and the oil suction part, and the compensation spring is used to compensate for the expansion and contraction amount of the linear drive part.

[0011] As mentioned above, a plurality of disassembly and assembly parts are provided on the grid bracket, and the plurality of disassembly and assembly parts correspond to the plurality of linear driving parts, wherein a disassembly and assembly part is provided on the telescopic end of the linear driving part, and when the compensation spring is disassembled or installed, the disassembly and assembly part is used to assist the compensation spring in rapid disassembly and installation.

[0012] As mentioned above, the disassembly and assembly part includes a disassembly and assembly platform, a trumpet-shaped installation groove is provided at the center of the disassembly and assembly platform, two quarter-circular arc-shaped adjustment grooves are symmetrically provided on the side walls of the installation groove, the bottom end of the adjustment groove is in an arc shape extending toward the edge of the disassembly and assembly platform, an arc-shaped guide groove is provided on the side wall of the adjustment groove, a sliding sleeve is slidably installed in the guide groove, and a fixed hook is connected to the sliding sleeve through a traction spring.

[0013] The above-mentioned fixing hook includes a hook-shaped section and a straight rod section, wherein the hook-shaped section extends into the installation groove, and one end of the straight rod section away from the hook-shaped section abuts against the arc-shaped bottom end of the adjustment groove.

[0014] As mentioned above, the compensation spring includes a telescopic section located in the middle and connecting ends in the shape of circular rings located on both sides, and the two connecting ends are respectively connected to the two disassembly and assembly parts.

[0015] As mentioned above, the arc-shaped bottom end of the adjusting groove is divided into a proximal end and a distal end. In the initial state, the end of the straight rod section away from the hook-shaped section abuts against the proximal end of the adjusting groove.

[0016] As mentioned above, when the end of the straight rod section away from the hook section abuts against the proximal end of the adjusting slot, the traction spring is in a compressed state, accumulating elastic potential energy; when the end of the straight rod section away from the hook section abuts against the distal end of the adjusting slot, the traction spring is in a stress-free state.

[0017] The beneficial effect of the present invention is that in the above technical scheme, a fuel oil rapid detection device provided by the present invention is provided with an oil suction assembly. When a fuel nozzle sprays out a stream of oil mist, after the signal receiver receives the detection data of the oil mist by the laser Doppler velocimeter system, the linear driving part drives the oil suction part to move in the prismatic glass cover, and the oil suction part absorbs the oil mist in the prismatic glass cover, thereby avoiding the oil stains remaining in the prismatic glass cover from interfering with the next detection during subsequent tests and affecting the accuracy of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the structure of a fuel oil rapid detection device provided by an embodiment of the present invention;

[0020] Figure 2 A front schematic diagram of a fuel oil rapid detection device provided by an embodiment of the present invention;

[0021] Figure 3A schematic diagram of the internal structure of a prismatic glass cover provided by an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the cooperation between the oil suction part and the fuel nozzle provided in an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of a state in which a compensation spring provided in an embodiment of the present invention connects an oil suction part and a linear drive part;

[0024] Figure 6 A schematic diagram of the structure of a compensation spring provided by an embodiment of the present invention;

[0025] Figure 7 A schematic diagram of the connection state between the compensation spring and the disassembly and assembly part provided in an embodiment of the present invention;

[0026] Figure 8 The embodiment of the present invention provides Figure 7 A schematic cross-sectional view of AA;

[0027] Fig. 9 The embodiment of the present invention provides Figure 8 An enlarged schematic diagram of point B;

[0028] Fig.10 A schematic diagram of a state in which the connecting end of the compensation spring provided by an embodiment of the present invention extends into the installation groove;

[0029] Fig.11 A schematic diagram of a state in which a fixing hook fixes a compensation spring provided by an embodiment of the present invention;

[0030] Fig.12 A schematic diagram of a state in which a support boss supports a grid bracket provided by an embodiment of the present invention;

[0031] Fig.13 A schematic diagram of the trajectory of a further adjustment groove on the inner wall of the installation groove provided in an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] Prismatic glass cover; 2. Fuel nozzle; 3. Laser transmitter; 4. Signal receiver; 5. Oil suction assembly; 51. Oil suction part; 511. Grid bracket; 512. Oil-absorbing gauze; 52. Linear drive part; 53. Avoidance hole; 54. One-way deflection part; 55. Compensation spring; 551. Telescopic section; 552. Connecting end; 56. Disassembly and assembly part; 561. Disassembly and assembly platform; 562. Mounting groove; 563. Adjustment groove; 564. Guide slide groove; 565. Sliding sleeve; 566. Traction spring; 567. Fixed hook; 5671. Hook-shaped section; 5672. Straight rod section; 57. Support boss. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1 - Fig.13 , the present invention is further introduced in detail.

[0035] The embodiment of the present invention provides a fuel oil rapid detection device, comprising a prismatic glass cover 1, wherein a fuel nozzle 2 for spraying oil mist is arranged inside the prismatic glass cover 1, a laser emitter 3 and a signal receiver 4 are arranged outside the prismatic glass cover 1, and an oil suction assembly 5 is arranged inside the prismatic glass cover 1, wherein the oil suction assembly 5 comprises an oil suction part 51 and a linear driving part 52, wherein the oil suction part 51 crosses the inside of the prismatic glass cover 1, and the linear driving part 52 drives the oil suction part 51 to move vertically inside the prismatic glass cover 1, so that the oil suction part 51 absorbs the oil mist inside the prismatic glass cover 1.

[0036] Specifically, the prismatic glass cover 1 is mainly because the structure is based on the reflection and refraction of light. When the fuel nozzle 2 sprays oil mist, it is convenient for the laser emitter 3 to perform laser irradiation on the conical oil mist sprayed by the fuel nozzle 2. The most common prismatic glass cover 1 uses a seven-prism shape structure, which includes seven identical side faces and two end faces, the top face and the bottom face, wherein the side faces are made of transparent glass, the fuel nozzle 2 is located on the top face, and the laser emitter 3 and the signal receiver 4 are located on the outside of the two side faces of the prismatic glass cover 1. The shape is designed based on the reflection and refraction of light. On the same vertical plane, the height of the fuel nozzle 2 should be higher than the height of the laser emitter 3. When the fuel nozzle 2 sprays oil mist, it is convenient for the laser emitter 3 to perform laser irradiation on the conical oil mist sprayed by the fuel nozzle 2. The oil outlet is arranged downwards, and the above are all prior arts, which will not be described in detail. In the present embodiment, the laser emitter 3 uses a laser Doppler velocimeter or other equipment with the same function. At this time, when it is necessary to detect the properties of the fuel oil, the fuel nozzle 2 sprays the oil mist downwards in the prismatic glass cover 1, and then the laser emitter 3 emits a laser. When the laser beam passes through the oil mist sprayed from the fuel nozzle 2, the laser beam irradiates the fuel atomized particles in the oil mist, and the fuel atomized particles reflect the laser beam. Due to the movement of the fuel atomized particles, the frequency of the reflected light changes, forming a Doppler frequency shift. The signal receiver 4 receives the above optical information and analyzes it, so as to deduce the properties such as the atomized particle size, injection speed and spray cone angle of the oil mist sprayed from the fuel nozzle 2. This technology is prior art, and its principle will not be described in detail.

[0037] Obviously, in order to ensure the accuracy of the test data, multiple fuel injection tests are generally performed quickly, and the accuracy of the test data is ensured by recording multiple sets of test data. Moreover, since the prismatic glass cover 1 covers the four sides of the fuel nozzle 2, the oil mist sprayed from the fuel nozzle 2 overflows the prismatic glass cover 1 at a relatively slow speed. When the fuel nozzle 2 sprays the oil mist for the next time, the oil mist in the prismatic glass cover 1 may not have completely flowed out of the prismatic glass cover 1, so that the oil mist sprayed last time still remains in the prismatic glass cover 1. When subsequent detection is performed, the oil mist remaining in the prismatic glass cover 1 last time will still react with the laser emitted by the laser Doppler velocimeter, resulting in a decrease in the accuracy of the test data received by the signal receiver 4. Furthermore, as the number of tests increases, the accuracy of the test data received by the signal receiver 4 also gradually decreases, affecting the determination of the properties of the fuel oil.

[0038] In order to solve the above problems, an oil absorption assembly 5 is further provided in the prismatic glass cover 1. The oil absorption assembly 5 includes an oil absorption part 51 and a plurality of linear driving parts 52. The linear driving part 52 drives the oil absorption part 51 to move in the prismatic glass cover 1, driving the oil absorption part 51 to contact the oil mist suspended inside the prismatic glass cover 1. The oil absorption part 51 absorbs the suspended oil mist, eliminating the influence of the oil mist inside the prismatic glass cover 1 on the next test data. Among them, the linear driving part 52 can select a linear telescopic rod, and the telescopic end of the linear telescopic rod is connected to the oil absorption part 51. The overall shape of the oil absorption part 51 is plate-shaped. The cross section of the oil absorption part 51 is adapted to the cross section of the prismatic glass cover 1, that is, a regular heptagonal plate. The oil absorption part 51 The surface of the fuel nozzle 2 is provided with an air-permeable oil-absorbing layer capable of absorbing oil mist, and the oil-absorbing layer is made of a material capable of absorbing oil mist (such as kapok, kenaf, wool fiber, etc.). After the fuel nozzle 2 completes a fuel injection test, the linear driving unit 52 drives the oil-absorbing unit 51 to move upward or downward along the inner wall of the prismatic glass cover 1 in the vertical direction, and the oil-absorbing unit 51 contacts the internal air of the prismatic glass cover 1. The oil-absorbing layer on the surface of the oil-absorbing unit 51 absorbs the oil mist inside the prismatic glass cover 1, so as to prevent the residual oil mist inside the prismatic glass cover 1 from affecting the data of the next fuel injection test. Subsequently, the fuel nozzle 2 performs fuel injection again, continues the fuel injection test, and records the data, thereby completing the data collection and processing of the fuel injection test.

[0039] Since the time between the two oil injections in the experiment is relatively short, theoretically, the faster the speed of the oil suction part 51 moving vertically once is, the better. This is also the reason why the present application does not adopt a solution of completely excluding the gas in the prismatic glass cover 1. The vertical movement resistance is too large, resulting in a too slow speed. However, optionally, air holes can be provided at the top and bottom of the prismatic glass cover 1. During the vertical movement of the oil suction part 51, not only can the gas pass through the oil suction part 51, but also can enter and exit through the air holes, thereby reducing the gas resistance of the vertical movement of the oil suction part 51 and accelerating the movement speed. Obviously, a corresponding collection mechanism for the fuel oil needs to be provided on the air holes. This is a prior art and will not be described in detail.

[0040] Preferably, in the present embodiment, a plurality of linear drive parts 52 are arranged at intervals along the circumference of the prismatic glass cover 1, and the oil suction part 51 includes two grid brackets 511 arranged at intervals up and down, the two grid brackets 511 have the same shape and are both adapted to the cross-section of the prismatic glass cover 1, an oil-absorbing gauze 512 is sandwiched between the grid brackets 511, and the grid brackets 511 limit the shape of the oil-absorbing gauze 512, and an avoidance hole 53 is opened on the oil suction part 51, the avoidance hole 53 corresponds to the position of the fuel nozzle 2, the avoidance hole 53 is located directly below the fuel nozzle 2, and a one-way deflection part 54 is arranged in the avoidance hole 53, and the one-way deflection part 54 deflects downward based on the extrusion of the fuel nozzle 2 to open the avoidance hole 53.

[0041] Specifically, in the present embodiment, in order to ensure that the oil suction part 51 moves smoothly inside the prismatic glass cover 1, at least three linear drive parts 52 are provided, and the avoidance hole 53 passes through the oil suction part 51, that is, the avoidance hole 53 passes through the two layers of grid brackets 511 and the oil-absorbing gauze 512 between the two layers, wherein the one-way deflection part 54 can be simply composed of a shielding plate and a torsion spring, and the shielding plate is rotatably mounted on the grid bracket 511 located below through the torsion spring, and when the torsion spring is not subjected to force, the shielding plate blocks the avoidance hole 53; it should be noted that in order to prevent the oil suction part 51 and the shielding plate from affecting the shape of the oil mist sprayed from the fuel nozzle 2, the length of the fuel nozzle 2 inside the prismatic glass cover 1 should be longer than the thickness of the oil suction part 51 and the length of the shielding plate. The sum of the degrees, wherein, in the initial state, the oil suction part 51 is located at the top of the prismatic glass cover 1, at this time, the fuel nozzle 2 passes through the avoidance hole 53, and the injection end of the fuel nozzle 2 is located below the shielding plate. At this time, the fuel nozzle 2 sprays oil mist for testing to collect the test data of the fuel. After the fuel nozzle 2 completes a fuel injection test, oil mist remains in the prismatic glass cover 1. Before the second fuel injection test, the linear drive part 52 drives the oil suction part 51 to perform rapid reciprocating motion in the vertical direction inside the prismatic glass cover 1, and the oil-absorbing gauze 512 on the grid bracket 511 absorbs the residual oil mist in the prismatic glass cover 1 to prevent the oil mist suspended in the prismatic glass cover 1 from interfering with the next test and affecting the accuracy of the next fuel injection test data.

[0042] It should be noted that the fuel has a relatively fast volatility, so when the oil-absorbing gauze 512 completes the adsorption process of the fuel, the oil-absorbing gauze 512 returns to the top of the prismatic glass cover 1. An opening can be set at the top of the prismatic glass cover 1. When the fuel absorbed by the oil-absorbing gauze 512 evaporates, the evaporated gas leaves the interior of the prismatic glass cover 1 from the opening. In addition, a device for accelerating the volatilization of the fuel, such as a heating device, a blowing device, etc., can be set at the top of the prismatic glass cover 1.

[0043] Obviously, the surface of the grid bracket 511 can also be wrapped with the oil-absorbing gauze 512. By increasing the thickness of the oil-absorbing gauze 512, the oil absorption amount of the oil-absorbing gauze 512 can be indirectly increased, and the squeezing between the grid bracket 511 and the inner wall of the prismatic glass cover 1 can be buffered. It should be noted that when the thickness of the oil-absorbing gauze 512 increases, the staff also needs to adjust the length of the fuel nozzle 2 in the prismatic glass cover 1 to ensure that the fuel nozzle 2 is The injection end of the fuel nozzle 2 is located below the shielding plate when passing through the avoidance hole 53 for the injection test.

[0044] In order to ensure that the oil suction part 51 can move smoothly, the multiple linear drive parts 52 need to move completely synchronously. However, due to manufacturing, installation, aging and other reasons, it is difficult to synchronize the movements of the multiple linear drive parts 52 completely. When the multiple linear drive parts 52 do not move synchronously, when the oil suction part 51 moves inside the prismatic glass cover 1, the moving distances of the areas connected to different linear drive parts 52 are inconsistent, causing the oil suction part 51 to tilt inside the prismatic glass cover 1. The oil suction part 51 may get stuck in the prismatic glass cover 1, and even scratch the glass surface, affecting the detection result.

[0045] In order to solve the above problem, a compensation spring 55 can be arranged between the linear drive part 52 and the oil suction part 51. The compensation spring 55 is arranged vertically, and the two ends of the compensation spring 55 are respectively connected to the linear drive part 52 and the oil suction part 51. The compensation spring 55 is used to compensate for the expansion and contraction amount of the linear drive part 52, so that the multiple linear drive parts 52 do not need to move in strict and complete consistency, and the oil suction part 51 can be kept in a horizontal state as much as possible when moving.

[0046] Obviously, in this embodiment, the compensation spring 55 is located below the oil suction part 51. When the oil suction part 51 needs to be installed, disassembled and replaced, the staff cannot directly observe the installation area on the oil suction part 51 and the linear drive part 52 to perform precise installation. Therefore, when the staff blindly disassembles and installs the compensation spring 55, the disassembly and installation efficiency of the compensation spring 55 is low.

[0047] In order to solve the above problems, in this embodiment, a plurality of disassembly and assembly parts 56 are provided on the grid bracket 511, and the plurality of disassembly and assembly parts 56 correspond to the plurality of linear driving parts 52, wherein a disassembly and assembly part 56 is provided on the telescopic end of the linear driving part 52, and when the compensation spring 55 is disassembled or installed, the disassembly and assembly part 56 is used to assist the compensation spring 55 in rapid disassembly and installation; wherein the disassembly and assembly part 56 comprises a disassembly and assembly platform 561, and a trumpet-shaped (inverted truncated cone-shaped mouth, cylindrical belly) mounting groove 562 is provided at the center of the disassembly and assembly platform 561, and two quarter-circle arcs are symmetrically provided on the side wall of the cylindrical part of the mounting groove 562 The adjusting groove 563 is in the shape of an arc, and the bottom end of the adjusting groove 563 is in the shape of an arc extending toward the edge of the disassembly and assembly platform 561, that is, the two ends of the arc of the adjusting groove 563 are divided into a proximal axis end and a distal axis end. An arc-shaped guiding groove 564 is provided on the side wall of the adjusting groove 563, and a sliding sleeve 565 is slidably installed in the guiding groove 564. A fixing hook 567 is connected to the sliding sleeve 565 through a traction spring 566. The fixing hook 567 includes a connected hook section 5671 and a straight rod section 5672, wherein the hook section 5671 extends into the installation groove 562, and the end of the straight rod section 5672 away from the hook section 5671 abuts against the arc-shaped bottom end of the adjusting groove 563.

[0048] Specifically, the disassembly and assembly part 56 on the linear drive part 52 and the disassembly and assembly part 56 on the grid bracket 511 are arranged opposite to each other up and down, that is, the installation grooves 562 on the two disassembly and assembly parts 56 are arranged opposite to each other, and in this embodiment, the compensation spring 55 includes a telescopic section 551 located in the middle and annular connecting ends 552 located on both sides, and the two connecting ends 552 are respectively connected to the two disassembly and assembly parts 56 to complete the installation of the compensation spring 55, wherein the bottom end of the adjustment groove 563 is in the shape of an arc extending toward the edge of the disassembly and assembly platform 561, that is, the axial direction of the arc is not coaxial with the axis of the installation groove 562, and in this regard, the proximal end is the end of the arc trajectory close to the axis of the installation groove 562, and similarly, the distal end is the end of the arc trajectory close to the axis of the installation groove 562. The end of the straight rod segment 5672 away from the axial end of the mounting groove 562 on the arc trajectory, and in the initial state, the end of the straight rod segment 5672 away from the hook segment 5671 abuts against the proximal end of the adjusting groove 563; when the end of the straight rod segment 5672 away from the hook segment 5671 abuts against the proximal end of the adjusting groove 563, the traction spring 566 is in a compressed state, accumulating elastic potential energy, and when the end of the straight rod segment 5672 away from the hook segment 5671 abuts against the distal end of the adjusting groove 563, the traction spring 566 is in a stress-free state, wherein, in order to facilitate the replacement of the compensation spring 55, in the present embodiment, the top surface of the prismatic glass cover 1 can be detached from itself, that is, the top surface of the prismatic glass cover 1 can be removed.

[0049] When the compensation spring 55 needs to be removed, the process of removing the compensation spring 55 is as follows:

[0050] The staff removes the top surface of the prismatic glass cover 1. At this time, the top of the prismatic glass cover 1 is connected to the outside world. Then the linear driving part 52 extends upward, and the linear driving part 52 drives the oil suction part 51 to move upward until it leaves the prismatic glass cover 1. At this time, the oil suction part 51 is located outside the prismatic glass cover 1. Then the staff lifts the oil suction part 51 (the oil suction part 51 can also be lifted by a lifting device to ensure that the oil suction part 51 will not fall and hit the staff after the compensation spring 55 is disassembled). Then the staff holds the compensation spring 55 and rotates it in a clockwise direction. The connecting end 552 of the compensation spring 55 rotates in a clockwise direction synchronously. The connecting end 552 of the compensation spring 55 slides along the groove direction of the guide groove 564 with the fixing hook 567 and the sliding sleeve 565. When the sliding sleeve 565 slides to When the other end of the guiding groove 564 is guided, the straight rod section 5672 of the fixing hook 567 also slides along the bottom end of the adjusting groove 563, sliding from the distal end of the bottom end of the adjusting groove 563 to the proximal end. When the straight rod section 5672 moves to the proximal end of the adjusting groove 563, the straight rod section 5672 is squeezed by the adjusting groove 563, and the traction spring 566 contracts to accumulate elastic potential energy. When the traction spring 566 contracts, the end of the straight rod section 5672 of the fixing hook 567 also slides along the sliding sleeve 565 toward the center of the mounting groove 562 under the squeezing of the adjusting groove 563. As the fixing hook 567 moves, the hook-shaped section 5671 of the fixing hook 567 gradually moves away from the connecting end 552 of the compensation spring 55, releasing the lock on the compensation spring 55. Then the staff removes the compensation spring 55 to complete the disassembly of the compensation spring 55.

[0051] After the disassembly process of the compensation spring 55 is completed, the connection process of the disassembly part 56 and the compensation spring 55 is as follows:

[0052] The height of the oil suction part 51 is manually adjusted so that a gap is formed between the oil suction part 51 and the linear drive part 52 (the gap distance is longer than the length of the compensation spring 55). Then the staff member places the compensation spring 55 between the oil suction part 51 and the linear drive part 52. At this time, the compensation spring 55 is placed vertically, and the two connecting ends 552 of the compensation spring 55 are respectively facing the disassembly part 56 on the oil suction part 51 and the disassembly part 56 on the linear drive part 52. Then, the linear drive part 52 begins to extend and gradually reduces the distance between the two disassembly parts 56 (the two disassembly parts 56 here refer to the disassembly part 56 on the oil suction part 51 and the disassembly part 56 on the linear drive part 52), so that the two connecting ends 552 of the compensation spring 55 are inserted into the installation grooves 562 in the upper and lower disassembly parts 56. Then the staff member rotates the compensation spring 55 counterclockwise. During the counterclockwise rotation of the connecting end 552 of the compensation spring 55, the connecting end 552 of the compensation spring 55 touches the connecting end 552 of the compensation spring 55 that extends into the installation groove 562. As the compensation spring 55 continues to rotate, the connecting end 552 of the compensation spring 55 pushes the fixing hook 567 and the sliding sleeve 565 to slide along the guide groove 564. When the sliding sleeve 565 slides to the other end of the guide groove 564, the straight rod section 5672 of the fixing hook 567 also slides along the bottom end of the adjusting groove 563, sliding from the proximal end of the bottom end of the adjusting groove 563 to the distal end. When the straight rod section 5672 moves to the distal end of the adjusting groove 563, The traction spring 566 releases the accumulated elastic potential energy, and the traction spring 566 pushes the end of the straight rod section 5672 of the fixing hook 567 against the surface of the distal end of the adjusting slot 563. That is, when the traction spring 566 releases the accumulated elastic potential energy, the fixing hook 567 slides along the sliding sleeve 565 toward the inside of the adjusting slot 563. As the fixing hook 567 moves, the hook-shaped section 5671 of the fixing hook 567 hooks the connecting end 552 of the compensation spring 55, completing the installation operation of the compensation spring 55.

[0053] Obviously, when the installation area of ​​the compensation spring 55 cannot be viewed for fine installation, the compensation spring 55 can be quickly disassembled and installed by rotating it clockwise and counterclockwise, thereby further improving the working efficiency of the compensation spring 55 during blind disassembly and blind installation and shortening the maintenance cycle of the equipment.

[0054] Furthermore, the adjustment groove 563 extends in an arc shape from top to bottom on the side wall of the cylindrical portion of the mounting groove 562 .

[0055] Specifically, when the adjusting groove 563 is projected in the horizontal direction, the adjusting groove 563 is in an arc shape around the inner wall of the mounting groove 562. When the adjusting groove 563 is projected in the vertical direction, the two ends of the adjusting groove 563 are arranged at intervals up and down. The disassembly and assembly part 56 located below is used as an example for specific explanation (that is, the disassembly and assembly part 56 connected to the linear driving part 52). In the disassembly and assembly part 56, the proximal end of the adjusting groove 563 is located above the distal end (it should be noted that because the disassembly and assembly part 56 on the grid bracket 511 and the disassembly and assembly part 56 on the linear driving part 52 are arranged opposite to each other, the distal end of the disassembly and assembly part 56 on the grid bracket 511 is located above the proximal end). In the present embodiment, an annular supporting boss 57 is arranged below the inner wall of the prismatic glass cover 1, and the supporting boss 57 is used to support the grid bracket 511.

[0056] At this time, the disassembly process of the compensation spring 55 is as follows:

[0057] First, since the compensation spring 55 needs to be disassembled, the compensation spring 55 before disassembly is in a locked state at the two disassembly parts 56 (the disassembly part 56 on the grid bracket 511 and the disassembly part 56 on the linear drive part 52). At this time, the ends of the straight rod sections 5672 of the fixing hooks 567 on the two disassembly parts 56 are against the surface of the distal end of the adjustment slot 563.

[0058] Then, the linear drive unit 52 begins to shorten, and the linear drive unit 52 moves downward with the compensation spring 55, the grid bracket 511 and the two disassembly units 56 until the support boss 57 supports the grid bracket 511 to limit the downward movement of the grid bracket 511. At this time, the compensation spring 55 reaches the disassembly position, and the preparation work before disassembly of the compensation spring 55 is completed;

[0059] Afterwards, the linear drive portion 52 continues to shorten, and the grid bracket 511 is supported by the supporting boss 57. At this time, the grid bracket 511 cannot continue to move downward with the linear drive portion 52. Therefore, under the traction of the linear drive portion 52, the disassembly portion 56 connected to the linear drive portion 52 moves downward. Since the proximal end of the adjustment slot 563 of the disassembly portion 56 connected to the linear drive portion 52 is located above the distal end, and since the ends of the straight rod segments 5672 of the fixing hooks 567 are against the distal end of the adjustment slot 563, as the disassembly portion 56 moves downward, the sliding sleeve 565 slides upward along the groove of the guide slot 564, and the straight rod segment 5672 of the fixing hooks 567 also slides along the bottom end of the adjustment slot 563, The shaft end slides to the proximal end, and when the straight rod section 5672 moves to the proximal end of the adjusting slot 563, the straight rod section 5672 is squeezed by the adjusting slot 563, and the traction spring 566 contracts to accumulate elastic potential energy. When the traction spring 566 contracts, the end of the straight rod section 5672 of the fixing hook 567 also slides along the sliding sleeve 565 toward the center of the installation slot 562 under the squeezing of the adjusting slot 563. As the fixing hook 567 moves, the hook-shaped section 5671 of the fixing hook 567 gradually moves away from the connecting end 552 of the compensation spring 55, releasing the lock on the compensation spring 55. Then the staff can directly lift the upper grid bracket 511, and the grid bracket 511 leaves the prismatic glass cover 1 with the compensation spring 55, completing the disassembly of the compensation spring 55.

[0060] Obviously, at this time, when disassembling the compensation spring 55, there is no need to manually twist the compensation spring 55 for disassembly. Only the downward movement of the linear drive unit 52 is required to realize the automatic disassembly of the compensation spring 55, which further improves the disassembly efficiency of the compensation spring 55.

[0061] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fuel oil rapid detection device, comprising a prismatic glass cover (1), a fuel nozzle (2) for spraying oil mist is arranged inside the prismatic glass cover (1), and a laser transmitter (3) and a signal receiver (4) are arranged outside the prismatic glass cover (1), characterized in that: Also includes: An oil suction assembly (5) is arranged in the prismatic glass cover (1), the oil suction assembly (5) comprising an oil suction portion (51) and a plurality of linear drive portions (52), the oil suction portion (51) being arranged to extend across the interior of the prismatic glass cover (1), and the linear drive portions (52) driving the oil suction portion (51) to move vertically in the prismatic glass cover (1); The oil absorption part (51) comprises two grid supports (511) spaced apart from each other, the two grid supports (511) having the same shape and being adapted to the cross section of the prismatic glass cover (1), and an oil absorption gauze (512) being sandwiched between the grid supports (511); An avoidance hole (53) is provided on the oil suction portion (51), the avoidance hole (53) corresponds to the position of the fuel nozzle (2), the avoidance hole (53) is located directly below the fuel nozzle (2), a one-way deflection portion (54) is provided in the avoidance hole (53), and the one-way deflection portion (54) deflects downward to open the avoidance hole (53) based on the squeezing of the fuel nozzle (2); A compensation spring (55) is arranged between the linear drive part (52) and the oil suction part (51). The compensation spring (55) is arranged vertically. Two ends of the compensation spring (55) are respectively connected to the linear drive part (52) and the oil suction part (51). The compensation spring (55) is used to compensate for the expansion and contraction amount of the linear drive part (52). A plurality of disassembly and assembly parts (56) are provided on the grid support (511), and the plurality of disassembly and assembly parts (56) correspond to the plurality of linear drive parts (52), wherein the disassembly and assembly parts (56) are provided on the telescopic ends of the linear drive parts (52), and when the compensation spring (55) is disassembled or installed, the disassembly and assembly parts (56) are used to assist the compensation spring (55) in rapid disassembly and installation; The disassembly and assembly part (56) comprises a disassembly and assembly platform (561), a trumpet-shaped installation groove (562) is provided at the center of the disassembly and assembly platform (561), two quarter-circular arc-shaped adjustment grooves (563) are symmetrically provided on the side wall of the installation groove (562), the bottom end of the adjustment groove (563) is in an arc shape extending toward the edge of the disassembly and assembly platform (561), an arc-shaped guide groove (564) is provided on the side wall of the adjustment groove (563), a sliding sleeve (565) is slidably installed in the guide groove (564), and a fixing hook (567) is connected to the sliding sleeve (565) via a traction spring (566).

2. A fuel oil rapid detection device according to claim 1, characterized in that: The fixing hook (567) comprises a hook-shaped section (5671) and a straight rod section (5672), wherein the hook-shaped section (5671) extends into the installation groove (562), and an end of the straight rod section (5672) away from the hook-shaped section (5671) abuts against the arc-shaped bottom end of the adjustment groove (563).

3. A fuel oil rapid detection device according to claim 2, characterized in that: The compensation spring (55) comprises a telescopic section (551) located in the middle and annular connecting ends (552) located on both sides, and the two connecting ends (552) are respectively connected to the two disassembly parts (56).

4. A fuel oil rapid detection device according to claim 2, characterized in that: The arc-shaped bottom end of the adjusting groove (563) is divided into a proximal end and a distal end. In the initial state, the end of the straight rod section (5672) away from the hook-shaped section (5671) abuts against the proximal end of the adjusting groove (563).

5. A fuel oil rapid detection device according to claim 4, characterized in that: When one end of the straight rod section (5672) away from the hook section (5671) abuts against the proximal end of the adjusting slot (563), the traction spring (566) is in a compressed state, accumulating elastic potential energy; when one end of the straight rod section (5672) away from the hook section (5671) abuts against the distal end of the adjusting slot (563), the traction spring (566) is in a stress-free state.

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