A sampling and filtration device for testing the impurity content of refined oil products

Abstract

This utility model relates to the field of refined oil impurity content testing, specifically to a sampling and filtration device for refined oil impurity content testing. It includes a sampling filter frame, a main body for sampling and filtration of refined oil impurity content, and a cyclone drum fixedly installed inside the upper part of the sampling filter frame for oil inlet filtration. A horizontal frame plate is threadedly connected to the upper part of the cyclone drum, and a spiral channel is fixedly installed at the bottom of the horizontal frame plate. This utility model includes a cyclone drum, a spiral channel, a middle filter cylinder, a partition plate, candle filter elements, a sampling cylinder, a buoyancy block, and a sampling head. When using this refined oil impurity content testing sampling and filtration device, the refined oil entering the cyclone drum is first affected by the spiral channels inside the spiral channel, rotating downwards in a spiral manner. It then enters the middle filter cylinder through the downflow pipe, and is filtered by four sets of candle filter elements inside the middle filter cylinder before entering the sampling cylinder.

Description

Technical Field

[0001] This utility model relates to the field of testing for impurities in refined oil products, and specifically to a sampling and filtration device for testing the impurities in refined oil products. Background Technology

[0002] The testing of impurities in refined oil products is a systematic process of detecting impurities such as moisture, solid particles, ash, sulfur content, and carbon black. It involves steps such as stratified sampling, filtration analysis, and instrumental measurement to assess whether the oil quality meets national standards. The sampling and filtration device for testing the impurities in refined oil products specifically refers to specialized equipment used to purify oil samples during the sampling process and ensure accurate testing. Its core function is to remove large particulate impurities such as metal shavings, fibers, and colloids from the oil sample during sampling, preventing clogging of subsequent analytical instruments or interference with test results. Simultaneously, it ensures the representativeness and uniformity of the sample. Such devices are widely used in petroleum refining, storage and transportation, and gas stations, and are a key technical support for ensuring oil quality compliance and safe equipment operation.

[0003] Existing sampling and filtration devices for testing impurities in refined oil products lack the ability to perform cyclone filtration and stratified sampling. This results in traditional devices performing only a single filtration, which has limited ability to remove fine particles and water, easily leading to sample contamination and affecting the accuracy of indicators such as particle counting and ash content detection. Furthermore, long-term use can cause the sampling to capture surface oxide layers or bottom deposits, resulting in samples that are not representative.

[0004] Therefore, it is necessary to invent a sampling and filtration device for testing the impurity content of finished oil products to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a sampling and filtration device for testing the impurity content of refined oil. This device, through a cyclone separator, spiral channel, intermediate filter cylinder, partition plate, candle filter element, sampling cylinder, buoyancy block, and sampling head, enables cyclone filtration for stratified sampling. The cyclone separator and spiral channel rapidly separate large particles of impurities using centrifugal separation principles. Combined with the secondary filtration of the candle filter element, it effectively intercepts solid particles, colloids, and moisture, reducing the risk of clogging subsequent analytical instruments and extending equipment life. Furthermore, the linkage design between the buoyancy block and the sampling head ensures precise insertion of the sampling head into the middle layer of the oil, avoiding surface scum and bottom sediments. This addresses the lack of stratified sampling capability in existing technologies, which often result in single-pass filtration with limited ability to remove fine particles and water, leading to sample contamination and affecting the accuracy of particle counting, ash content detection, and other indicators. Moreover, long-term use can result in sampling from the surface oxide layer or bottom sediments, leading to unrepresentative samples.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sampling and filtration device for testing the impurity content of refined oil, comprising a sampling filter frame and a main body for testing and filtering the impurity content of refined oil; A cyclone separator is fixedly installed inside the upper part of the sampling filter frame for oil inlet filtration. A crossbeam plate is threadedly connected to the upper part of the cyclone separator. A spiral channel is fixedly installed at the bottom of the crossbeam plate. A downflow pipe is fixedly installed at the bottom of the cyclone separator. A middle filter cylinder is fixedly connected to the other end of the downflow pipe. A partition plate is fixedly installed inside the center of the middle filter cylinder for spatial division. Each partition plate has a threaded groove on its upper part, and a threaded tube is threadedly connected inside the threaded groove. A candle filter element is fixedly installed at the top of the threaded tube. A sampling cylinder is fixedly connected to the bottom of the middle filter cylinder. Four sets of buoyancy blocks float inside the sampling cylinder. A sampling head is fixedly installed at the bottom of each of the four sets of buoyancy blocks. A connecting pipe is fixedly installed at the upper end of the sampling head. An external sampling port is fixedly connected to the other end of the connecting pipe.

[0007] Preferably, an upper cylinder cover is fixedly installed above the cyclone cylinder, and an oil inlet pipe is fixedly installed above the upper cylinder cover.

[0008] Preferably, the cyclone tube, the middle filter tube, and the sampling filter frame are internally fixedly connected, and the cyclone tube and the downflow tube are an integrated structure.

[0009] Preferably, the candle filter element is threadedly connected to the spacer plate, and the candle filter elements are evenly distributed on the spacer plate.

[0010] Preferably, the number of external sampling ports is set to four, and the four external sampling ports are distributed in a ring array outside the sampling tube.

[0011] Preferably, a side mounting plate is fixedly installed on the outside of the sampling filter frame, a feed pump is fixedly installed on the top of the side mounting plate, a sampling tube is fixedly installed at the output end of the feed pump, and the other end of the sampling tube is fixedly connected to the outside of the external sampling port.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This utility model includes a cyclone separator, a spiral channel, a middle filter, a partition plate, candle filter elements, a sampling cylinder, buoyancy blocks, and a sampling head. When using this sampling and filtration device for testing the impurity content of finished oil, the finished oil entering the cyclone separator is first affected by the spiral channels inside the spiral channel, causing it to spiral downwards. It then enters the middle filter through the downflow pipe, and is filtered by four sets of candle filter elements inside the middle filter before entering the sampling cylinder. Because the four sets of buoyancy blocks float above the filtered oil, the buoyancy blocks... The square sampling head is inserted into the middle layer of the oil to complete the sampling and filtration operation. This gives the sampling and filtration device for testing the impurity content of the finished oil the ability to perform cyclone filtration and stratified sampling. The cyclone and spiral channel quickly separate large particles of impurities through centrifugal separation. Combined with the secondary filtration of the candle filter element, it effectively intercepts solid particles, colloids and moisture, reduces the risk of clogging of subsequent analytical instruments, and extends the equipment life. Moreover, the linkage design between the buoyancy block and the sampling head ensures that the sampling head is accurately inserted into the middle layer of the oil, avoiding surface scum and bottom sediment. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cyclone tube structure of this utility model; Figure 3 This is a schematic diagram of the middle filter cylinder structure of this utility model; Figure 4 This is a schematic diagram of the sampling cylinder structure of this utility model; Figure 5 This is a schematic diagram of the sampling tube structure of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Sampling filter frame; 2. Cyclone drum; 3. Upper cylinder cover; 4. Oil inlet pipe; 5. Horizontal frame plate; 6. Spiral drum channel; 7. Downstream pipe; 8. Middle filter cylinder; 9. Spacing plate; 10. Threaded groove; 11. Threaded pipe; 12. Candle filter element; 13. Sampling cylinder; 14. Buoyancy block; 15. Sampling head; 16. Connecting pipe; 17. External sampling port; 18. Side mounting plate; 19. Feed pump; 20. Sampling tube. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1-5 The device shown is a sampling and filtration device for testing the impurity content of refined oil, including a sampling filter frame 1, which is the main body for sampling and filtering the impurity content of refined oil. The cyclone 2 is fixedly installed inside the upper part of the sampling filter frame 1 for oil inlet filtration. A horizontal frame plate 5 is threadedly connected to the upper part of the cyclone 2. A spiral cylinder channel 6 is fixedly installed at the bottom of the horizontal frame plate 5. A downflow pipe 7 is fixedly installed at the bottom of the cyclone 2. The other end of the downflow pipe 7 is fixedly connected to the middle filter cylinder 8. A partition plate 9 is fixedly installed inside the center of the middle filter cylinder 8 for spatial division. Each partition plate 9 has a threaded groove 10 on its upper surface. A threaded tube 11 is threaded into the inside of each threaded groove 10. A candle filter element 12 is fixedly installed at the top of each threaded tube 11. A sampling cylinder 13 is fixedly connected to the bottom of the middle filter cylinder 8. Four sets of buoyancy blocks 14 float inside the sampling cylinder 13. A sampling head 15 is fixedly installed at the bottom of each of the four sets of buoyancy blocks 14. A connecting pipe 16 is fixedly installed at the upper end of each sampling head 15. An external sampling device is fixedly connected to the other end of the connecting pipe 16. The finished oil entering the cyclone 2 through port 17 is first affected by the spiral channel inside the spiral channel 6, and flows downward in a spiral manner. It then enters the middle filter cylinder 8 through the downflow pipe 7. After being filtered by four sets of candle filter elements 12 inside the middle filter cylinder 8, it enters the sampling cylinder 13. Since the four sets of buoyancy blocks 14 float above the filtered oil, the sampling head 15 below the buoyancy blocks 14 is inserted into the middle layer of the oil, thereby completing the sampling and filtration operation. This gives the finished oil impurity content testing sampling and filtration device the ability to perform cyclone filtration and stratified sampling.

[0018] like Figure 1 , Figure 2 and Figure 3 As shown, an upper cylinder cover 3 is fixedly installed above the cyclone cylinder 2, and an oil inlet pipe 4 is fixedly installed above the upper cylinder cover 3. The oil inlet pipe 4 is used to connect with an external oil pipe so that the finished oil flows into the cyclone cylinder 2 for inspection, sampling and filtration. The cyclone cylinder 2 and the middle filter cylinder 8 are fixedly connected to the internal structure of the sampling filter frame 1. The cyclone cylinder 2 and the downflow pipe 7 are integrated structures. The finished oil entering the cyclone cylinder 2 is first affected by the spiral channel inside the spiral cylinder channel 6 and flows down in a spiral downward direction.

[0019] like Figure 1 , Figure 4 and Figure 5As shown, the candle filter element 12 is threadedly connected to the spacer plate 9. The candle filter elements 12 are evenly distributed on the spacer plate 9. The oil is filtered by four sets of candle filter elements 12 inside the middle filter cylinder 8 before entering the sampling cylinder 13. Four external sampling ports 17 are arranged in a ring array outside the sampling cylinder 13. Since the four sets of buoyancy blocks 14 float above the filtered oil, the sampling head 15 below the buoyancy blocks 14 inserts into the middle layer of the oil. External operators can connect the sampling head 15 through the external sampling port 17 to complete the sampling and filtering operation. The external side mounting plate 18 is fixedly installed on the outside of the sampling filter frame 1. The feed pump 19 is fixedly installed on the top of the side mounting plate 18. The output end of the feed pump 19 is fixedly installed with the sampling tube 20. The other end of the sampling tube 20 is fixedly connected to the outside of the external sampling port 17. The feed pump 19 is connected to the external sampling port 17 through the sampling tube 20, thereby extracting the filtered oil inside the sampling cylinder 13 for testing.

[0020] The working principle of this utility model is as follows: First, connect the external power supply and connect the oil inlet pipe 4 to the external oil pipe, allowing the finished oil to flow into the cyclone separator 2 for inspection, sampling, and filtration. The finished oil entering the cyclone separator 2 is first affected by the spiral channels inside the spiral cylinder 6, rotating downwards in a spiral manner. It then enters the middle filter cylinder 8 through the downflow pipe 7. Next, the oil is filtered by four sets of candle filter elements 12 inside the middle filter cylinder 8 before entering the sampling cylinder 13. Since the four sets of buoyancy blocks 14 float above the filtered oil, the sampling head 15 below the buoyancy blocks 14 inserts into the middle layer of the oil, thus completing the sampling and filtration operation. At this point, the external feed pump 19 can be started, connecting to the external sampling port 17 through the sampling pipe 20, thereby extracting the sample from the sampling cylinder 13. After internal filtration, the oil is tested, giving the finished oil impurity content testing and sampling filtration device the ability to perform cyclone filtration and stratified sampling. The cyclone cylinder 2 and the spiral channel 6 use the principle of centrifugal separation to quickly separate large particles of impurities. Combined with the secondary filtration of the candle filter element 12, it effectively intercepts solid particles, colloids, and moisture, reducing the risk of clogging of subsequent analytical instruments. Moreover, the linkage design between the buoyancy block 14 and the sampling head 15 ensures that the sampling head 15 is accurately inserted into the middle layer of the oil, avoiding surface scum and bottom sediment. Finally, after completing all the installation and use of the finished oil impurity content testing and sampling filtration device according to the above operations, turn off the switch of the feed pump 19. If it is not used for a long time, simply disconnect the external power supply. This completes the use of the finished oil impurity content testing and sampling filtration device.

[0021] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, 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 sampling and filtration device for testing the impurity content of refined oil, characterized in that: include Sampling filter frame (1), the main body for sampling and filtering for testing the impurity content of finished oil products; A cyclone separator (2) is fixedly installed inside the upper part of the sampling filter frame (1) for oil inlet filtration. A crossbeam plate (5) is threadedly connected inside the upper part of the cyclone separator (2). A spiral tube channel (6) is fixedly installed at the bottom of the crossbeam plate (5). A downflow pipe (7) is fixedly installed at the bottom of the cyclone separator (2). A middle filter cylinder (8) is fixedly connected at the other end of the downflow pipe (7). A partition plate (9) is fixedly installed in the center of the middle filter cylinder (8) for spatial division. A threaded groove (10) is provided on the top of the partition plate (9). A threaded tube (11) is threadedly connected inside the threaded groove (10). A candle filter element (12) is fixedly installed at the top of the threaded tube (11). A sampling cylinder (13) is fixedly connected to the bottom of the middle filter cylinder (8). Four sets of buoyancy blocks (14) float inside the sampling cylinder (13). A sampling head (15) is fixedly installed at the bottom of each of the four sets of buoyancy blocks (14). A connecting pipe (16) is fixedly installed at the upper end of the sampling head (15). An external sampling port (17) is fixedly connected to the other end of the connecting pipe (16).

2. The sampling and filtration device for testing the impurity content of refined oil according to claim 1, characterized in that: An upper cylinder cover (3) is fixedly installed above the vortex tube (2), and an oil inlet pipe (4) is fixedly installed above the upper cylinder cover (3).

3. The sampling and filtration device for testing the impurity content of refined oil according to claim 1, characterized in that: The cyclone tube (2) is internally fixedly connected to the middle filter tube (8) and the sampling filter frame (1), and the cyclone tube (2) and the downflow tube (7) are integrated into one structure.

4. The sampling and filtration device for testing the impurity content of refined oil according to claim 1, characterized in that: The candle filter element (12) is threadedly connected to the spacer plate (9), and the candle filter element (12) is evenly distributed on the spacer plate (9).

5. The sampling and filtration device for testing the impurity content of refined oil according to claim 1, characterized in that: The number of external sampling ports (17) is set to four, and the four external sampling ports (17) are arranged in a ring array outside the sampling tube (13).

6. The sampling and filtration device for testing the impurity content of refined oil according to claim 1, characterized in that: The sampling filter frame (1) is fixedly mounted with a side mounting plate (18) on the outside. A feed pump (19) is fixedly mounted on the top of the side mounting plate (18). A sampling tube (20) is fixedly mounted on the output end of the feed pump (19). The other end of the sampling tube (20) is fixedly connected to the outside of the external sampling port (17).

Images