A device for detecting the oxidative stability of a distillate fuel oil

Abstract

The utility model discloses a kind of fraction fuel oil oxidation stability detection devices, including installation box, the inside of installation box is provided with lifting platform, the bottom of lifting platform is fixedly connected with first fixed plate, the side of first fixed plate is fixedly connected with two locating rods, two locating rods are sleeved with same mounting plate, locating groove that is compatible with locating rod is opened in mounting plate, the bottom of mounting plate is fixedly connected with acidity meter, the top side of first fixed plate is fixedly connected with two guide rods, two guide rods are sleeved with same moving plate, moving plate is slidably connected guide rod, the top of moving plate is fixedly connected with pressure plate, the side of pressure plate is inclined plane, the side of pressure plate inclined plane is provided with gyro wheel, the top of U-shaped seat is fixedly connected with the top inner wall of installation box.The utility model acidity meter can be more quickly, conveniently disassembled and installed, to facilitate the maintenance of acidity meter, reduce the measurement error caused by residual, guarantee detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of fuel oil technology, and in particular to a device for detecting the oxidation stability of distillate fuel oil. Background Technology

[0002] Distillate fuel oil is a liquid compound separated from crude oil or other petroleum products through a distillation process. It is commonly used in engines, boilers, and other combustion equipment. To ensure that fuel oil maintains good performance during storage and use, it is necessary to test the oxidation stability of the fuel oil. Generally, the oxidation stability is judged by testing the acid value of the fuel oil. Changes in acid value can reflect the formation of acidic substances during the oxidation process of fuel oil. The acid value is detected by a pH meter on a testing device. However, there are still problems to be solved in the existing distillate fuel oil oxidation stability testing devices.

[0003] In the existing technology, the pH meter on the distillate fuel oil oxidation stability testing device is not easy to disassemble and install. After multiple tests, the pH meter may be contaminated by sample residues, which will affect the accuracy and reliability of subsequent measurements. If the pH meter is not easy to disassemble and install for cleaning, maintenance work will become more difficult and may lead to deviations in measurement data. Therefore, it is urgent to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for detecting the oxidation stability of distillate fuel oil.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for testing the oxidative stability of distillate fuel oil includes a mounting box. Inside the mounting box is a lifting platform. A first fixing plate is fixedly connected to the bottom of the lifting platform. Two positioning rods are fixedly connected to one side of the first fixing plate. The two positioning rods are fitted onto the same mounting plate, which has positioning grooves adapted to the positioning rods. A pH meter is fixedly connected to the bottom of the mounting plate. Two guide rods are fixedly connected to one side of the top of the first fixing plate. The two guide rods are fitted onto the same moving plate, which is slidably connected to the guide rods. A pressure plate is fixedly connected to the top of the moving plate. One side of the pressure plate is inclined, and a roller is provided on the inclined side of the pressure plate. A U-shaped seat is fitted onto the roller, and the top of the U-shaped seat is fixedly connected to the top inner wall of the mounting box. A second fixing plate is fixedly connected to the two guide rods on the side away from the first fixing plate. The top of the second fixing plate is fixedly connected to the bottom of the lifting platform. Two springs are provided on the side of the second fixing plate closer to the first fixing plate, and the two springs are respectively fitted onto the two guide rods. The design employs a technique that allows the moving plate to be moved away from one side of the mounting plate during the rising process of the pH meter and to be blocked on one side of the mounting plate during the descending process. Therefore, during installation, the moving plate is moved to contact the mounting plate, the positioning rod restricts the vertical position of the mounting plate, and the moving plate restricts the lateral position of the mounting plate, thus installing the pH meter. Moving the moving plate away from one side of the mounting plate allows the mounting plate to be removed from the positioning rod, enabling the pH meter to be detached. This effectively solves the problem mentioned in the background art where the pH meter on the distillate fuel oil oxidation stability testing device is inconvenient to disassemble and assemble. After multiple tests, the pH meter may be contaminated by sample residues, affecting the accuracy and reliability of subsequent measurements. If the pH meter is not easily disassembled for cleaning, maintenance becomes more difficult, potentially leading to deviations in measurement data. This design achieves faster and more convenient disassembly and installation of the pH meter, facilitating maintenance, reducing measurement errors caused by residues, and ensuring accurate detection.

[0007] As a further embodiment of this utility model, a sliding groove is provided on the lifting platform, the top of the moving plate is disposed in the sliding groove, and the moving plate is slidably connected to the lifting platform.

[0008] As a further embodiment of this utility model, two second cylinders are fixedly connected to one side of the second fixed plate, and a first cylinder is slidably connected to the inner wall of each of the two second cylinders. A movable plate is fixedly connected to the side of each of the two first cylinders away from the second fixed plate.

[0009] As a further embodiment of this utility model, the first cylinder and the second cylinder are sleeved on the spring.

[0010] As a further embodiment of this utility model, a round tube is fixedly connected to one side of the mounting box, a sealing cap is fitted on the round tube, and a threaded groove is formed on the round tube, which is compatible with the sealing cap.

[0011] As a further embodiment of this utility model, an electric telescopic rod is fixedly connected to the top of the mounting box, the output end of the electric telescopic rod passes through the top of the mounting box, and the output end of the electric telescopic rod is fixedly connected to the top of the lifting platform.

[0012] As a further embodiment of this utility model, a reaction vessel is fixedly connected to the bottom of the mounting box, and the mounting box and the reaction vessel are in communication.

[0013] The beneficial effects of this utility model are as follows:

[0014] Because the technology employs a method that allows the moving plate to be moved away from one side of the mounting plate during the rising process of the pH meter and to be blocked on one side of the mounting plate during the descending process, the pH meter can be installed by moving the moving plate to contact the mounting plate, with the positioning rod restricting the vertical position of the mounting plate and the moving plate restricting the lateral position of the mounting plate. Moving the moving plate away from one side of the mounting plate allows the mounting plate to be removed from the positioning rod, thus allowing the pH meter to be detached. This effectively solves the problem mentioned in the background art where the pH meter on the distillate fuel oil oxidation stability testing device is inconvenient to disassemble and assemble. After multiple tests, the pH meter may be contaminated by sample residues, which will affect the accuracy and reliability of subsequent measurements. If the pH meter is not easy to disassemble and assemble for cleaning, maintenance will become more difficult, potentially leading to deviations in measurement data. Therefore, this technology enables faster and more convenient disassembly and installation of the pH meter, facilitating maintenance, reducing measurement errors caused by residues, and ensuring the accuracy of the test. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a distillate fuel oil oxidation stability testing device proposed in this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the mounting box of the distillate fuel oil oxidation stability testing device proposed in this utility model;

[0017] Figure 3 This is a partial structural schematic diagram of a distillate fuel oil oxidation stability testing device proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the lifting platform of the distillate fuel oil oxidation stability testing device proposed in this utility model;

[0019] Figure 5 This is a schematic cross-sectional view of the moving plate of the distillate fuel oil oxidation stability testing device proposed in this utility model.

[0020] In the diagram: 1. Mounting box; 2. Lifting platform; 3. First fixed plate; 4. Positioning rod; 5. Mounting plate; 6. Acidity meter; 7. Guide rod; 8. Moving plate; 9. Pressure plate; 10. Roller; 11. U-shaped seat; 12. Second fixed plate; 13. Spring; 14. First cylinder; 15. Second cylinder; 16. Circular tube; 17. Sealing cover; 18. Electric telescopic rod; 19. Reactor; 20. Slide groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5A device for testing the oxidative stability of distillate fuel oil includes a mounting box 1. Inside the mounting box 1 is a lifting platform 2. A first fixing plate 3 is fixedly connected to the bottom of the lifting platform 2. Two positioning rods 4 are fixedly connected to one side of the first fixing plate 3. The two positioning rods 4 are fitted onto the same mounting plate 5. The mounting plate 5 has positioning grooves that mate with the positioning rods 4. A pH meter 6 (model PH-100A, portable pH meter) is fixedly connected to the bottom of the mounting plate 5. Two guide rods 7 are fixedly connected to one side of the top of the first fixing plate 3. A single movable plate 8 is fitted onto the first fixed plate 3. The movable plate 8 is slidably connected to guide rods 7. A pressure plate 9 is fixedly connected to the top of the movable plate 8. One side of the pressure plate 9 is inclined, and a roller 10 is installed on one side of the inclined surface. A U-shaped seat 11 is fitted onto the roller 10. The top of the U-shaped seat 11 is fixedly connected to the top inner wall of the mounting box 1. Two guide rods 7 are fixedly connected to a single second fixed plate 12 on the side away from the first fixed plate 3. The top of the second fixed plate 12 is fixedly connected to the bottom of the lifting platform 2. Two springs 1 are installed on the side of the second fixed plate 12 closest to the first fixed plate 3. 3. Two springs 13 are respectively sleeved on two guide rods 7. Due to the technical means that the moving plate can be moved away from one side of the mounting plate during the rising process of the pH meter, and can be blocked on one side of the mounting plate during the falling process of the pH meter, the pH meter can be installed by moving the moving plate to contact the mounting plate, the positioning rod restricting the vertical position of the mounting plate, and the moving plate restricting the lateral position of the mounting plate. The pH meter can then be installed. Moving the moving plate away from one side of the mounting plate allows the mounting plate to be removed from the positioning rod, and the pH meter can be removed. This effectively solves the problem mentioned in the background art that the pH meter on the distillate fuel oil oxidation stability testing device is not easy to disassemble and install. After multiple tests, the pH meter may be contaminated by sample residues, which will affect the accuracy and reliability of subsequent measurements. If the pH meter is not easy to disassemble and clean, maintenance work will become more difficult, which may lead to deviations in measurement data. Thus, the pH meter can be disassembled and installed more quickly and conveniently, thereby facilitating the maintenance of the pH meter, reducing measurement errors caused by residues, and ensuring the accuracy of detection.

[0023] In this embodiment, a sliding groove 20 is provided on the lifting platform 2, and the top of the movable plate 8 is disposed in the sliding groove 20. The movable plate 8 is slidably connected to the lifting platform 2.

[0024] In this embodiment, two second cylinders 15 are fixedly connected to one side of the second fixed plate 12, and a first cylinder 14 is slidably connected to the inner wall of each of the two second cylinders 15. A movable plate 8 is fixedly connected to the side of each of the two first cylinders 14 away from the second fixed plate 12.

[0025] In this embodiment, the first cylinder 14 and the second cylinder 15 are sleeved on the spring 13.

[0026] In this embodiment, a round tube 16 is fixedly connected to one side of the mounting box 1. A sealing cap 17 is fitted on the round tube 16. A threaded groove is opened on the round tube 16. The threaded groove on the round tube 16 is adapted to the sealing cap 17. The sealing cap 17 is screwed onto the round tube 16 to seal and prevent leakage.

[0027] In this embodiment, an electric telescopic rod 18 is fixedly connected to the top of the mounting box 1. The output end of the electric telescopic rod 18 passes through the top of the mounting box 1 and is fixedly connected to the top of the lifting platform 2. By extending the output end of the electric telescopic rod 18, the lifting platform 2 can be lowered, which in turn allows the acidity meter 6 to be lowered to detect the acid value of the distillate fuel oil in the reaction vessel 19. This detects the generation of acidic substances in the distillate fuel oil during the oxidation process, thereby determining the stability of the oxidation process.

[0028] In this embodiment, a reaction vessel 19 is fixedly connected to the bottom of the mounting box 1, and the mounting box 1 and the reaction vessel 19 are connected.

[0029] Working principle: When in use, an external power supply is used. The electric telescopic rod 18 is activated via the external PLC controller, causing its output end to extend. This extension extends the lifting platform 2, which in turn lowers the first fixed plate 3. The first fixed plate 3 then lowers the positioning rod 4, which in turn lowers the mounting plate 5. The mounting plate 5 then lowers the pH meter 6 to immerse it in fuel oil for acid value testing. If the acid value continues to increase during fuel oil storage, it indicates an increase in the formation of acidic substances in the fuel oil, usually signifying oxidation and degradation. The reaction causes a decrease in oxidative stability. Conversely, if the acid value changes little and remains at a relatively stable level, it indicates that the fuel oil has good oxidative stability. During assembly, unscrew the sealing cap 17, place the acid meter 6 into the mounting box 1, and put the mounting plate 5 onto the positioning rod 4. The positioning rod 4 positions the mounting plate 5 and restricts its vertical position. Then, extend the output end of the electric telescopic rod 18, which drives the lifting platform 2 to descend. The lifting platform 2 drives the first fixed plate 3 to descend, which in turn drives the guide rod 7 to descend. The guide rod 7 then moves the guide rod 7 to descend. As plate 8 descends, the moving plate 8 causes the pressure plate 9 to descend as well, disengaging it from the roller 10. This allows the contracted spring 13 to extend, enabling the moving plate 8 to move closer to the first fixed plate 3. The moving plate 8 then moves along the two guide rods 7, ensuring stability during its movement. The moving plate 8 continues until it contacts the mounting plate 5, thus blocking one side of the mounting plate 5 and restricting its lateral position. This completes the installation of the mounting plate 5, and consequently, the pH meter 6. The movement of the moving plate 8 also causes the first cylinder 14 to move within the second cylinder 15. When the pH meter 6 needs to be removed for maintenance... When the output end of the electric telescopic rod 18 is fully retracted, the lifting platform 2 will rise, and the pressure plate 9 will also rise. If the pressure plate 9 continues to rise when its inclined surface contacts the roller 10, it will be able to move laterally. The pressure plate 9 will then drive the moving plate 8 to move away from the first fixed plate 3, and thus move the moving plate 8 away from the mounting plate 5. The movement of the moving plate 8 will compress the spring 13, causing the spring 13 to contract. The moving plate 8 will then be moved away from one side of the mounting plate 5. The sealing cover 17 can then be unscrewed again, and the mounting plate 5 can be removed from the positioning rod 4. The pH meter 6 can then be removed for maintenance.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for detecting the oxidative stability of distillate fuel oil, comprising a mounting box (1), characterized in that, The installation box (1) is equipped with a lifting platform (2). A first fixing plate (3) is fixedly connected to the bottom of the lifting platform (2). Two positioning rods (4) are fixedly connected to one side of the first fixing plate (3). The two positioning rods (4) are fitted onto the same installation plate (5). The installation plate (5) has a positioning groove that matches the positioning rods (4). A pH meter (6) is fixedly connected to the bottom of the installation plate (5). Two guide rods (7) are fixedly connected to one side of the top of the first fixing plate (3). The two guide rods (7) are fitted onto the same moving plate (8). The moving plate (8) is slidably connected to the guide rods (7). The top of the moving plate (8) is... A pressure plate (9) is fixedly connected. One side of the pressure plate (9) is inclined. A roller (10) is provided on one side of the inclined surface of the pressure plate (9). A U-shaped seat (11) is fitted on the roller (10). The top of the U-shaped seat (11) is fixedly connected to the top inner wall of the mounting box (1). The two guide rods (7) are fixedly connected to the same second fixed plate (12) on the side away from the first fixed plate (3). The top of the second fixed plate (12) is fixedly connected to the bottom of the lifting platform (2). The second fixed plate (12) is provided with two springs (13) on the side close to the first fixed plate (3). The two springs (13) are respectively fitted on the two guide rods (7).

2. The distillate fuel oil oxidative stability testing device according to claim 1, characterized in that, The lifting platform (2) is provided with a sliding groove (20), and the top of the moving plate (8) is set in the sliding groove (20). The moving plate (8) is slidably connected to the lifting platform (2).

3. The distillate fuel oil oxidative stability testing device according to claim 1, characterized in that, Two second cylinders (15) are fixedly connected to one side of the second fixed plate (12). The inner walls of the two second cylinders (15) are slidably connected to a first cylinder (14). The two first cylinders (14) are fixedly connected to a movable plate (8) on the side away from the second fixed plate (12).

4. The distillate fuel oil oxidation stability testing device according to claim 3, characterized in that, The first cylinder (14) and the second cylinder (15) are sleeved on the spring (13).

5. The distillate fuel oil oxidative stability testing device according to claim 1, characterized in that, A round tube (16) is fixedly connected to one side of the mounting box (1). A sealing cap (17) is fitted on the round tube (16). A threaded groove is opened on the round tube (16), and the threaded groove on the round tube (16) is adapted to the sealing cap (17).

6. The distillate fuel oil oxidative stability testing device according to claim 5, characterized in that, An electric telescopic rod (18) is fixedly connected to the top of the mounting box (1). The output end of the electric telescopic rod (18) passes through the top of the mounting box (1) and is fixedly connected to the top of the lifting platform (2).

7. The distillate fuel oil oxidative stability testing device according to claim 6, characterized in that, The bottom of the mounting box (1) is fixedly connected to the reactor (19), and the mounting box (1) and the reactor (19) are connected.

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