Petroleum product freezing point measuring device

Abstract

The utility model relates to the technical field of petroleum product detection, and provides a petroleum product freezing point measuring device which comprises a protective shell and a controller, and further comprises a measuring mechanism, three groups of petroleum product samples are respectively placed in three test tubes, and after test tube plugs and test tube racks are installed, the whole detection assembly is connected with a through groove and the controller; a medium for cooling is put into the cooling cavity through the putting pipe, the medium is cooled under the action of the refrigerating machine and the temperature control device, the temperature of the petroleum product sample in the three test tubes is reduced, and the temperature change condition of the petroleum product sample in the three test tubes is recorded through the controller under the action of the temperature sensor. According to the technical scheme, freezing point measurement is carried out on multiple petroleum product samples, the petroleum product measurement efficiency is improved, and through the technical scheme, the problems that in the prior art, synchronous measurement is difficult to carry out on petroleum products of different samples, and the measurement efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum product detection, and in particular to a freezing point measuring device for petroleum products. Background Art

[0002] Petroleum products are a series of products extracted from crude oil in refineries. Thousands of products can be obtained from petroleum. In order to ensure the safety of transportation and use of petroleum products, it is necessary to measure the freezing point of petroleum products, that is, to detect whether petroleum products freeze at low temperatures.

[0003] Existing freezing point measurement devices for petroleum products can only perform single detection, making it difficult to perform synchronous measurement of different samples of petroleum products, and the measurement efficiency is low.

[0004] Therefore, a freezing point measuring device for petroleum products is proposed. Utility Model Content

[0005] The utility model provides a freezing point measuring device for petroleum products, which solves the problems in the related art of difficulty in synchronously measuring petroleum products of different samples and low measurement efficiency.

[0006] The technical solution of the utility model is as follows:

[0007] A freezing point measuring device for petroleum products, comprising a protective housing and a controller for numerically controlling the device, a refrigerator fixedly mounted on one side of the protective housing, a temperature control device mounted on the refrigerator, and further comprising:

[0008] The measuring mechanism includes a cooling chamber and a detection component. The cooling chamber is arranged inside a protective shell. A delivery pipe for delivering industrial alcohol into the cooling chamber is fixedly connected to one side of the protective shell. The temperature control device is used to control the refrigerator to adjust the temperature of the industrial alcohol inside the cooling chamber. The detection components are provided in three groups and are distributed in a ring shape. Three through grooves for connecting the detection components are opened at the top of the protective shell corresponding to the cooling chamber. The detection component includes a test tube, a test tube rack and a test tube plug.

[0009] Preferably, the test tube is used to place a petroleum product sample to be measured, the test tube rack is sleeved on the outside of the bottom of the test tube, and the upper surface is in contact with the lower surface of the top of the test tube, the test tube plug is sealed and connected to the test tube port, and a temperature sensor is installed at the bottom of one side of the test tube plug, and one end of the data cable of the temperature sensor extends out of the top of the test tube plug and is electrically connected to the controller.

[0010] Preferably, a connecting rod passes through the middle of the test tube plug, the connecting rod is sealed and rotatably connected to the test tube plug, one end of the bottom of the connecting rod extends to the bottom of the test tube, and the end of the connecting rod extending from the top of the test tube plug is set to a T shape.

[0011] Preferably, one end of the bottom of the connecting rod is configured to be spiral and does not interfere with the temperature sensor.

[0012] Preferably, the test tube rack comprises an upper ring, a lower ring and round rods. The outer diameter of the lower ring is smaller than the outer diameter of the upper ring, and the outer diameter of the upper ring is larger than the diameter of the through groove. The upper ring and the lower ring are fixedly connected by a number of round rods distributed in a ring shape.

[0013] Preferably, a viewing window for observing the interior of the cooling chamber is fixedly mounted on one side of the protective shell, and scale lines are marked on the viewing window.

[0014] Preferably, a rotating assembly is provided inside the cooling chamber, and the rotating assembly includes a rotating frame, a motor and a rotating rod. The motor is fixedly mounted on the upper surface of the protective shell, and one end of the rotating rod is fixedly connected to the motor output shaft. The rotating frame is provided inside the cooling chamber, and the side wall of the rotating frame is provided in a circular shape and has a number of evenly distributed through holes. The bottom of the rotating frame is a circular plate, and a fixed sleeve is provided on the outside of one end of the bottom of the rotating rod.

[0015] Preferably, the bottoms of the three groups of detection components are all arranged inside the rotating frame, the bottom of the rotating frame is rotatably connected to a disc, the lower surface of the lower ring is in contact with the upper surface of the disc, and a group of protective components are respectively provided at the three through grooves.

[0016] Preferably, the protective component includes a circular groove, a protective cylinder and a movable ring. The circular groove is opened on the outside of the bottom of the through groove on the protective shell and is connected to the through groove. The top of the protective cylinder is fixedly connected to the top of the circular groove. The inner diameter of the protective cylinder is larger than the inner diameter of the lower circular ring. The movable ring is fixedly connected to one end of the bottom of the protective cylinder. The inner diameter of the movable ring is consistent with the outer diameter of the lower circular ring. The protective cylinder is configured to be telescopic, and the inner and outer sides are fixedly connected with a thermal insulation layer. One side of the movable ring is connected to the driving component.

[0017] Preferably, the driving assembly includes a connecting block and a screw, the connecting block is fixedly connected to one side of the moving ring, one end of the screw passes through the protective shell and is rotatably connected to the connecting block, and the screw is threadedly connected to the protective shell.

[0018] The working principle and beneficial effects of the utility model are as follows:

[0019] 1. In the present invention, three groups of petroleum product samples are placed in three test tubes respectively. After the test tube plugs and the test tube rack are installed, the entire detection assembly is connected to the through slot and the controller. A cooling medium is introduced into the cooling chamber through the delivery tube. The medium is cooled by the refrigerator and the temperature control device, so that the temperature of the petroleum product samples in the three test tubes drops. The temperature sensor records the temperature changes of the petroleum product samples in the three test tubes through the controller. When one of the petroleum product samples freezes, the relevant personnel covers the detection assembly after the test by turning the screw to drive the protective cylinder connected to the movable ring to keep the petroleum product sample inside at the freezing temperature, so that the freezing point of the petroleum product samples in the other two groups of detection assemblies can be continued. By setting the measuring mechanism, the freezing point measurement of multiple petroleum product samples is achieved, thereby improving the efficiency of petroleum product measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the detection component structure of the utility model;

[0023] Figure 3 This is a front sectional view of the utility model;

[0024] Figure 4 This is a side sectional view of the utility model;

[0025] Figure 5 It is a partial three-dimensional diagram of the utility model;

[0026] In the figure: 1. Protective shell; 2. Refrigerator; 3. Controller; 4. Temperature control device; 5. Measuring mechanism; 6. Cooling chamber; 7. Delivery tube; 8. Through slot; 9. Test tube; 10. Test tube rack; 11. Test tube plug; 12. Connecting rod; 13. Temperature sensor; 14. Upper ring; 15. Lower ring; 16. Round rod; 17. Rotating rack; 18. Motor; 19. Rotating rod; 20. Disc; 21. Round slot; 22. Protective cylinder; 23. Moving ring; 24. Connecting block; 25. Screw; 26. Viewing window. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1

[0029] like Figures 1 to 5 As shown, this embodiment provides a freezing point measuring device for petroleum products, including a protective housing 1 and a controller 3 for numerically controlling the device. A refrigerator 2 is fixedly mounted on one side of the protective housing 1, and a temperature control device 4 is mounted on the refrigerator 2. The device also includes:

[0030] The measuring mechanism 5 includes a cooling chamber 6 and a detection component. The cooling chamber 6 is arranged inside the protective shell 1. A delivery pipe 7 for delivering industrial alcohol into the cooling chamber 6 is fixedly connected to one side of the protective shell 1. The temperature control device 4 is used to control the refrigerator 2 to adjust the temperature of the industrial alcohol inside the cooling chamber 6. There are three groups of detection components, which are distributed in a ring shape. Three through grooves 8 for connecting the detection components are opened at the top of the protective shell 1 corresponding to the cooling chamber 6. The detection component includes a test tube 9, a test tube rack 10 and a test tube plug 11.

[0031] Preferably, test tube 9 is used to hold the petroleum product sample to be measured. Test tube holder 10 is positioned outside the bottom of test tube 9, with its upper surface in contact with the lower surface of the top of test tube 9. Test tube plug 11 is sealed to the end of test tube 9. A temperature sensor 13 is mounted on the bottom of one side of test tube plug 11. One end of the data cable of temperature sensor 13 extends from the top of test tube plug 11 and is electrically connected to controller 3. This configuration enables temperature sensor 13 to record the temperature changes of the petroleum product sample inside test tube 9 in real time.

[0032] Preferably, a connecting rod 12 extends through the middle of the test tube plug 11 and is sealed and rotatably connected to the test tube plug 11. The bottom end of the connecting rod 12 extends to the bottom of the test tube 9, and the end of the connecting rod 12 extending from the top of the test tube plug 11 is configured in a T-shape. The purpose of this configuration is to achieve stirring of the petroleum product sample inside the test tube 9 by rotating the T-shaped end of the connecting rod 12, thereby facilitating the temperature uniformity of the petroleum product sample.

[0033] Preferably, one end of the bottom of the connecting rod 12 is arranged in a spiral shape and does not interfere with the temperature sensor 13. The purpose of this arrangement is to achieve the purpose of fully homogenizing the petroleum product sample through the spiral arrangement of the bottom of the connecting rod 12.

[0034] Preferably, the test tube rack 10 comprises an upper ring 14, a lower ring 15, and rods 16. The outer diameter of the lower ring 15 is smaller than that of the upper ring 14, while the outer diameter of the upper ring 14 is larger than that of the through-slot 8. The upper and lower rings 14, 15 are fixedly connected by a plurality of annularly arranged rods 16. This arrangement facilitates the connection and fixation of the test tube rack 10 to the through-slot 8 by means of the upper and lower rings 14, 15 on the test tube rack 10.

[0035] Preferably, a visual window 26 for observing the interior of the cooling chamber 6 is fixedly mounted on one side of the protective housing 1, and a scale line is marked on the visual window 26. The purpose of this arrangement is to facilitate observation of the interior of the cooling chamber 6 through the arrangement of the visual window 26.

[0036] In this embodiment, three groups of petroleum product samples are placed in three test tubes 9 respectively. After the test tube plugs 11 and the test tube rack 10 are installed, the entire detection assembly is connected to the through slot 8 and the controller 3. A cooling medium is added to the cooling chamber 6 through the delivery tube 7. The medium is cooled by the refrigerator 2 and the temperature control device 4, so that the temperature of the petroleum product samples in the three test tubes 9 drops. The temperature sensor 13 is used to record the temperature changes of the petroleum product samples in the three test tubes 9 through the controller 3. When one of the petroleum product samples freezes, the relevant personnel turns the screw 25 to drive the protective tube 22 connected to the movable ring 23 to cover the detection assembly that has completed the test, so that the petroleum product sample inside it maintains the freezing temperature, thereby continuing to measure the freezing point of the petroleum product samples in the other two groups of detection assemblies. By setting the measuring mechanism 5, the freezing point measurement of multiple petroleum product samples is achieved, thereby improving the efficiency of petroleum product measurement.

[0037] Example 2

[0038] like Figures 1 to 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a rotating assembly is provided inside the cooling chamber 6, and the rotating assembly includes a rotating frame 17, a motor 18 and a rotating rod 19. The motor 18 is fixedly mounted on the upper surface of the protective shell 1, and one end of the rotating rod 19 is fixedly connected to the output shaft of the motor 18. The rotating frame 17 is arranged inside the cooling chamber 6, and the side wall of the rotating frame 17 is arranged in a circular ring shape and has a number of evenly distributed through holes. The bottom of the rotating frame 17 is a circular plate, and is fixedly sleeved on the outside of one end of the bottom of the rotating rod 19.

[0039] Preferably, the bottoms of the three detection components are all disposed within the rotating frame 17. A disk 20 is rotatably connected to the bottom of the rotating frame 17. The lower surface of the lower ring 15 is in contact with the upper surface of the disk 20. A set of protective components is disposed in each of the three through slots 8. This arrangement aims to prevent the protective components from interfering with the rotation of the rotating frame 17 through the placement of the disk 20.

[0040] Preferably, the protective assembly includes a circular groove 21, a protective tube 22, and a movable ring 23. The circular groove 21 is formed outside the bottom of the through-slot 8 on the protective housing 1 and communicates with the through-slot 8. The top of the protective tube 22 is fixedly connected to the top of the inner portion of the circular groove 21. The inner diameter of the protective tube 22 is larger than the inner diameter of the lower circular ring 15. The movable ring 23 is fixedly connected to one end of the bottom of the protective tube 22. The inner diameter of the movable ring 23 is the same as the outer diameter of the lower circular ring 15. The protective tube 22 is configured to be telescopic, and thermal insulation layers are fixedly connected to both the inside and outside. One side of the movable ring 23 is connected to the drive assembly. This configuration is intended to separate the detection components that have completed freezing point testing through the protective tube 22, thereby preventing the continued temperature drop from affecting the frozen petroleum product samples.

[0041] Preferably, the drive assembly includes a connecting block 24 and a screw 25. The connecting block 24 is fixedly connected to one side of the movable ring 23. One end of the screw 25 passes through the protective housing 1 and is rotatably connected to the connecting block 24. The screw 25 is threadedly connected to the protective housing 1. The purpose of this arrangement is to achieve the purpose of stretching the protective tube 22 connected to the connecting block 24 by turning the screw 25, thereby achieving the purpose of covering the detection assembly.

[0042] In this embodiment, the rotating frame 17 connected to the rotating rod 19 is driven to rotate by starting the motor 18 , so as to achieve the purpose of making the temperature of the medium inside the cooling chamber 6 uniform through the rotating frame 17 .

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A freezing point measuring device for petroleum products, comprising a protective housing (1) and a controller (3) for numerically controlling the device, wherein a refrigerator (2) is fixedly mounted on one side of the protective housing (1), and a temperature control device (4) is mounted on the refrigerator (2), characterized in that: Also includes: A measuring mechanism (5), the measuring mechanism (5) includes a cooling chamber (6) and a detection component, the cooling chamber (6) is arranged inside a protective shell (1), a delivery pipe (7) for delivering industrial alcohol into the cooling chamber (6) is fixedly connected to one side of the protective shell (1), the temperature control device (4) is used to control the refrigerator (2) to adjust the temperature of the industrial alcohol inside the cooling chamber (6), the detection component is provided in three groups and is distributed in an annular shape, three through grooves (8) for connecting the detection component are opened at the top of the protective shell (1) corresponding to the cooling chamber (6), and the detection component includes a test tube (9), a test tube rack (10) and a test tube plug (11).

2. A freezing point measuring device for petroleum products according to claim 1, characterized in that: The test tube (9) is used to place a petroleum product sample to be measured. The test tube rack (10) is sleeved on the outside of the bottom of the test tube (9), and the upper surface is in contact with the lower surface of the top of the test tube (9). The test tube plug (11) is sealed and connected to the port of the test tube (9). A temperature sensor (13) is installed at the bottom of one side of the test tube plug (11). One end of the data line of the temperature sensor (13) extends out of the top of the test tube plug (11) and is electrically connected to the controller (3).

3. The freezing point measuring device for petroleum products according to claim 1, characterized in that: A connecting rod (12) is passed through the middle of the test tube plug (11), and the connecting rod (12) is connected to the test tube plug (11) in a sealed and rotatable manner. One end of the bottom of the connecting rod (12) extends to the bottom of the test tube (9), and the end of the connecting rod (12) extending from the top of the test tube plug (11) is set in a T shape.

4. A freezing point measuring device for petroleum products according to claim 3, characterized in that: One end of the bottom of the connecting rod (12) is configured in a spiral shape and does not interfere with the temperature sensor (13).

5. The freezing point measuring device for petroleum products according to claim 1, characterized in that: The test tube rack (10) comprises an upper ring (14), a lower ring (15) and a round rod (16). The outer ring diameter of the lower ring (15) is smaller than the outer ring diameter of the upper ring (14). The outer ring diameter of the upper ring (14) is larger than the diameter of the through groove (8). The upper ring (14) and the lower ring (15) are fixedly connected by a plurality of round rods (16) distributed in an annular shape.

6. The freezing point measuring device for petroleum products according to claim 1, characterized in that: A visual window (26) for observing the interior of the cooling cavity (6) is fixedly mounted on one side of the protective housing (1), and a scale line is marked on the visual window (26).

7. The freezing point measuring device for petroleum products according to claim 1, characterized in that: A rotating assembly is provided inside the cooling chamber (6), and the rotating assembly includes a rotating frame (17), a motor (18) and a rotating rod (19). The motor (18) is fixedly mounted on the upper surface of the protective shell (1), and one end of the rotating rod (19) is fixedly connected to the output shaft of the motor (18). The rotating frame (17) is provided inside the cooling chamber (6), and the side wall of the rotating frame (17) is provided in a circular ring shape and has a plurality of evenly distributed through holes. The bottom of the rotating frame (17) is a circular plate, and a fixed sleeve is provided on the outer side of one end of the bottom of the rotating rod (19).

8. The freezing point measuring device for petroleum products according to claim 5, characterized in that: The bottoms of the three groups of detection components are all arranged inside the rotating frame (17), and the bottom of the rotating frame (17) is rotatably connected to a disk (20), the lower surface of the lower ring (15) is in contact with the upper surface of the disk (20), and a group of protective components is respectively provided at the three through grooves (8).

9. A freezing point measuring device for petroleum products according to claim 8, characterized in that: The protective assembly comprises a circular groove (21), a protective tube (22) and a movable ring (23), wherein the circular groove (21) is provided on the outer side of the bottom of the through groove (8) on the protective shell (1) and is communicated with the through groove (8), the top of the protective tube (22) is fixedly connected to the inner top of the circular groove (21), the inner diameter of the protective tube (22) is larger than the inner diameter of the lower circular ring (15), the movable ring (23) is fixedly connected to one end of the bottom of the protective tube (22), the inner diameter of the movable ring (23) is the same as the outer diameter of the lower circular ring (15), the protective tube (22) is configured to be telescopic, and a thermal insulation layer is fixedly connected to both the inner and outer sides, and one side of the movable ring (23) is connected to the driving assembly.

10. The freezing point measuring device for petroleum products according to claim 9, characterized in that: The driving assembly comprises a connecting block (24) and a screw (25), wherein the connecting block (24) is fixedly connected to one side of the moving ring (23), one end of the screw (25) passes through the protective shell (1) and is rotatably connected to the connecting block (24), and the screw (25) is threadedly connected to the protective shell (1).

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