Petroleum refining sampling device

Abstract

The utility model relates to the technical field of liquid sampling, and discloses a petroleum refining sampling device which comprises a plurality of sampling pipes, the side surface of each sampling pipe is provided with a liquid inlet, the adjacent sampling pipes are mounted through a quick mounting unit, the inside of the side wall of each sampling pipe is provided with a moving cavity communicated with the liquid inlet, and the moving cavity is communicated with the liquid inlet. A movable cavity is formed in the side wall of the sampling pipe in a penetrating mode, a movable rod penetrating through the sealing plate is arranged in the movable cavity in a penetrating mode, a first spring arranged on the side face of the movable rod in a sleeving mode is fixedly connected between the lower side face of the sealing plate and the inner bottom of the movable cavity, and a baffle ring is fixedly connected to the side face of the movable rod. By arranging the sampling pipes which can be connected with one another, sampling of multiple layers of petroleum samples can be completed through one action, and sampling of the petroleum samples needing to be sampled in multiple layers is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid sampling, in particular to a petroleum refining sampling device. Background Art

[0002] Petroleum refers to a mixture of gaseous, liquid and solid hydrocarbons, which can also be generally divided into crude oil, natural gas and natural tar. Before refining, it needs to be sampled and tested using a sampler.

[0003] In order to facilitate the sampling of petroleum samples, the prior art has made many improvements to the petroleum sampling device. For example, the patent with patent publication number CN215178903U discloses a petroleum refining sampling device, including an extraction device, the extraction end of the extraction device is detachably connected to a sample tube, the sample tube is provided with two pull-out tubes symmetrically arranged along its own transverse center line, a sealing plate is slidably provided in the pull-out tube, a push-pull rod passing through the pull-out tube is provided on the sealing plate, a clamping block is provided at one end of the sealing plate facing the inner wall of the sample tube, a clamping groove is provided on the inner wall of the sample tube, and a detachably connected sampling tube is provided at one end of the sample tube extending downward; wherein, by clamping the two sealing plates on the sample tube, a sealed space can be provided in the sample tube, thereby preventing the petroleum sample from contacting with the air, and because the sample tube and the sampling tube are detachably connected, the staff can replace the sampling tubes of different lengths to obtain petroleum samples of different depths.

[0004] The above patent has obvious beneficial effects, but still has the following shortcomings in actual operation:

[0005] In reality, in order to improve the detection accuracy of oil samples, when the oil storage volume is large, a stratified sampling technology is used, that is, oil at multiple depths is sampled and analyzed according to the oil capacity. In the above-mentioned comparative documents, if it is necessary to sample oil samples at different depths, it is necessary to continuously replace the sampling tube, resulting in poor efficiency of oil sampling and increased labor intensity of sampling personnel. Therefore, this field urgently needs to improve the oil refining sampling device to solve the defects of the existing technology. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a petroleum refining sampling device, which is more convenient and quicker to sample petroleum samples requiring multi-layer sampling.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a petroleum refining sampling device, comprising a sampling tube, wherein the number of the sampling tubes is plural, each of the sampling tubes is provided with a liquid inlet on its side, and adjacent sampling tubes are installed by means of a quick installation unit, a movable cavity connected to the liquid inlet is provided inside the side wall of the sampling tube, a sealing plate for sealing the liquid inlet is movably connected inside the movable cavity, a movable cavity is penetrated through the side wall of the sampling tube, a movable rod penetrating the sealing plate is penetrated in the movable cavity, a first spring sleeved on the side of the movable rod is fixedly connected between the lower side of the sealing plate and the bottom of the movable cavity, a retaining ring is fixedly connected to the side of the movable rod, a pressing unit for pressing the movable rod is provided at the uppermost end of the sampling tube, and the pressing unit can press several movable rods at the same time.

[0008] Preferably, the pressing unit includes a fixed column which is fixedly connected to one end of the sampling tube and is symmetrical, and a pressing plate is sleeved on the two fixed columns. A second spring sleeved on the side of the fixed column is fixedly connected between one end of the sampling tube and one side of the pressing plate, and an extrusion rod adapted to the movable rod is fixedly connected to one side of the pressing plate, and one end of the extrusion rod is abutted against one end of the movable rod.

[0009] Preferably, the quick installation unit includes a plurality of clamping blocks fixedly connected to the upper end of the sampling tube located below and arranged in an equidistant array, a clamping groove adapted to the clamping block is provided at the lower end of the sampling tube located above, a pushing plate is movably connected in the clamping groove, a third spring is fixedly connected between one side of the pushing plate and the inner side wall of the clamping groove, an extrusion angle adapted to the clamping groove is provided on one side of the clamping block, one side of the pushing plate exceeds one side of the clamping block, a sliding groove adapted to the pushing plate is provided on the upper end of the sampling tube located below, an arc-shaped guide rod is fixedly connected to one side of the pushing plate, a guide groove adapted to the guide rod is provided on the side wall of the clamping groove, and the third spring is sleeved on the side of the guide rod.

[0010] Preferably, the lower end of the sampling tube is open, and a sealed cover is threadedly connected to the lower end of the sampling tube.

[0011] Preferably, a sinking groove is provided on the lower surface of the cover plate, and a clamping strip is fixedly connected in the sinking groove.

[0012] Preferably, a step adapted to the cover plate is provided on the inner side wall of the lower end of the sampling tube, the cover plate is threadedly connected to the side wall of the step, and a sealing ring is embedded between the step and the cover plate.

[0013] Preferably, a connecting rod is fixedly connected to the upper end of one of the sampling tubes, and a handle is fixedly installed on the upper end of the connecting rod.

[0014] In view of the deficiencies of the prior art, the utility model provides a petroleum refining sampling device, which overcomes the deficiencies of the prior art. The beneficial effects of the utility model are:

[0015] 1. In the utility model, sampling tubes that can be connected to each other are arranged, and the sampling tubes that are adapted to the layered sampling spacing are quickly installed and fixed through a quick installation unit. The sampling personnel pushes the movable rod downward through the pressing unit to open the liquid inlet, and releases the pressing unit to close the liquid inlet. The sampling of multiple layers of petroleum samples can be completed through one action, which is more convenient and quick for sampling petroleum samples that require multi-layer sampling.

[0016] 2. In the utility model, a pressing plate is provided, and the pressing unit is located above the petroleum liquid surface during sampling. When sampling is required, the sampling personnel presses the pressing plate downward, and the squeezing rod squeezes the movable rod. After a period of time, the pressing plate is released, and the tension of the second spring pushes the pressing plate up, making it convenient for the sampling personnel to press the movable rod.

[0017] 3. In the utility model, a quick installation unit is provided. When two adjacent sampling tubes need to be connected, the clamping block contacts the push plate, and one sampling tube is rotated. The clamping block drives the push plate to move in the clamping groove. The clamping block is inserted into the clamping groove. The push plate is subjected to the tension of the third spring, and the clamping block is pushed to clamp in the position of the clamping groove at the extrusion angle, which is convenient for connecting and installing the two sampling tubes.

[0018] 4. In the utility model, a cover plate is provided, which is threadedly connected to the step position and sealed by a sealing ring. At the same time, a snap-in strip is used to facilitate the sampling personnel to disassemble and install the cover plate and clean the inside of the sampling tube.

[0019] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0021] Figure 1 This is a schematic diagram of the structure after a number of sampling tubes are connected in the utility model;

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

[0023] Figure 3 This is a schematic structural diagram of a partial cross-section of the sampling tube after connection in the utility model;

[0024] Figure 4 It is a structural schematic diagram of the lower end of a sampling tube in the utility model;

[0025] Figure 5 for Figure 2 The enlarged structural diagram at A in the middle;

[0026] Figure 6 for Figure 2 The enlarged structural diagram at B in the middle;

[0027] Figure 7 for Figure 3 The enlarged structural diagram at C in the middle;

[0028] Figure 8 for Figure 3 Enlarged structural diagram at D in the middle.

[0029] In the figure: 1. sampling tube; 2. liquid inlet; 3. movable cavity; 4. sealing plate; 5. movable rod; 6. movable cavity; 7. first spring; 8. retaining ring; 9. pressing unit; 10. fixing column; 11. pressing plate; 12. second spring; 13. extrusion rod; 14. snap-fit ​​groove; 15. push plate; 16. third spring; 17. snap-fit ​​block; 18. extrusion bevel; 19. guide rod; 20. guide groove; 21. slide groove; 22. cover plate; 23. sinking groove; 24. snap-fit ​​strip; 25. connecting rod; 26. handle; 27. step; 28. sealing ring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] See also Figure 1-Figure 8 A petroleum refining sampling device comprises a sampling tube 1, wherein the number of the sampling tubes 1 is multiple, a liquid inlet 2 is provided on the side of each sampling tube 1, and adjacent sampling tubes 1 are installed by a quick installation unit, a movable cavity 3 connected with the liquid inlet 2 is provided inside the side wall of the sampling tube 1, a sealing plate 4 for sealing the liquid inlet 2 is movably connected inside the movable cavity 3, an movable cavity 6 is penetrated inside the side wall of the sampling tube 1, a movable rod 5 penetrating the sealing plate 4 is penetrated in the movable cavity 6, a first spring 7 sleeved on the side of the movable rod 5 is fixedly connected between the lower side of the sealing plate 4 and the bottom of the movable cavity 3, a retaining ring 8 is fixedly connected to the side of the movable rod 5, and a pressing unit 9 for pressing the movable rod 5 is provided at the end of the sampling tube 1 located at the uppermost end, and the pressing unit 9 can press several movable rods 5 at the same time.

[0032] When it is necessary to sample the oil in layers, the sampling tube 1 that is adapted to the layered sampling interval is quickly installed and fixed through the quick installation unit. The connected sampling tubes 1 are inserted into the oil liquid surface, and the upper end of the uppermost sampling tube 1 just emerges from the liquid surface. The sampling personnel press the pressing unit 9, and the pressing unit 9 applies a downward thrust to the upper end of the movable rod 5. The plurality of movable rods 5 move downward in the movable cavity 6 under the thrust. When the movable rod 5 moves downward, the sealing plate 4 is driven to move downward in the movable cavity 6 through the retaining ring 8. After the sealing plate 4 moves downward, the liquid inlet 2 is opened. At this time, the first spring 7 is compressed under pressure, and the oil passes through the inlet. The liquid inlet 2 enters the corresponding sampling tube 1 for storage, stays for a period of time, releases the pressing unit 9, and the tension of the first spring 7 is released, pushing the sealing plate 4 to move upward, and the liquid inlet 2 is sealed again. The connected sampling tubes 1 are taken out to obtain multi-layer petroleum samples. When the sampling tube 1 needs to be taken out for the petroleum sample, the liquid inlet 2 can be opened by squeezing the movable rod 5 with the pressing unit 9 or a rod of a similar size to the movable rod 5. Since the number of sampling tubes 1 is not limited and the sampling of multi-layer petroleum samples can be completed in one action, it is more convenient and quick to sample petroleum samples that require multi-layer sampling.

[0033] As a technical optimization solution of the utility model, the pressing unit 9 includes a fixed column 10 which is fixedly connected to one end of the sampling tube 1 and is symmetrical. A pressing plate 11 is sleeved on the two fixed columns 10. A second spring 12 sleeved on the side of the fixed column 10 is fixedly connected between one end of the sampling tube 1 and one side of the pressing plate 11. An extrusion rod 13 adapted to the movable rod 5 is fixedly connected to one side of the pressing plate 11, and one end of the extrusion rod 13 is abutted against one end of the movable rod 5.

[0034] When sampling, the pressing unit 9 is located above the petroleum liquid surface. When sampling is required, the sampler presses the pressing plate 11 downward, and the pressing plate 11 drives the squeezing rod 13 to squeeze the movable rod 5. After a period of time, the pressing plate 11 is released, and the tension of the second spring 12 pushes the pressing plate 11 to rise. The fixed column 10 is used to limit the pressing plate 11, which is convenient for the sampler to press the movable rod 5.

[0035] As a technical optimization scheme of the utility model, the quick installation unit includes a plurality of clamping blocks 17 fixedly connected to the upper end of the sampling tube 1 located below and arranged in an equidistant array. A clamping groove 14 adapted to the clamping block 17 is provided at the lower end of the sampling tube 1 located above. A pushing plate 15 is movably connected in the clamping groove 14. A third spring 16 is fixedly connected between one side of the pushing plate 15 and the inner side wall of the clamping groove 14. An extrusion angle 18 adapted to the clamping groove 14 is provided on one side of the clamping block 17. One side of the pushing plate 15 exceeds one side of the clamping block 17. A sliding groove 21 adapted to the pushing plate 15 is provided on the upper end of the sampling tube 1 located below. An arc-shaped guide rod 19 is fixedly connected to one side of the pushing plate 15. A guide groove 20 adapted to the guide rod 19 is provided on the side wall of the clamping groove 14. The third spring 16 is sleeved on the side of the guide rod 19.

[0036] When it is necessary to connect two adjacent sampling tubes 1, the two ends of the two sampling tubes 1 are brought close to each other, and the clamping block 17 contacts the pushing plate 15, and one sampling tube 1 is rotated. The clamping block 17 drives the pushing plate 15 to move in the clamping groove 14. At this time, the third spring 16 is compressed, and the guide rod 19 moves in the guide groove 20. When the pushing plate 15 moves to the point where the clamping block 17 can be inserted into the clamping groove 14, the clamping block 17 is inserted into the clamping groove 14. At this time, the ends of the two sampling tubes 1 are merged, and the force for rotating the sampling tube 1 is cancelled. The pushing plate 15 is subjected to the tension of the third spring 16 to push the clamping block 17 to clamp at the position of the clamping groove 14 at the extrusion bevel 18, so as to facilitate the connection and installation of the two sampling tubes 1. When it is necessary to disassemble the two sampling tubes 1, one sampling tube 1 is rotated in the opposite direction, and the sampling tubes 1 are pulled away from each other. When the clamping block 17 rotates out of the position of the extrusion bevel 18, the two sampling tubes 1 can be separated.

[0037] As a technical optimization solution of the utility model, the lower end of the sampling tube 1 is open, and a sealed cover plate 22 is threadedly connected to the lower end of the sampling tube 1. A sinking groove 23 is provided on the lower surface of the cover plate 22, and a clamping strip 24 is fixedly connected in the sinking groove 23. A step 27 adapted to the cover plate 22 is provided on the inner side wall of the lower end of the sampling tube 1. The cover plate 22 is threadedly connected to the side wall of the step 27, and a sealing ring 28 is embedded between the step 27 and the cover plate 22.

[0038] The detachable cover 22 facilitates cleaning of the interior of the sampling tube 1 . When the cover 22 needs to be installed, the sealing ring 28 is embedded in the step 27 . The sampling personnel rotate the snap-on strip 24 to thread the cover 22 into the step 27 .

[0039] As a technical optimization solution of the utility model, a connecting rod 25 is fixedly connected to the upper end of a sampling tube 1, and a handle 26 is fixedly installed on the upper end of the connecting rod 25 to facilitate the sampling personnel to carry and operate the entire device.

[0040] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A petroleum refining sampling device, comprising a sampling tube (1), characterized in that: The number of the sampling tubes (1) is multiple, each of the sampling tubes (1) is provided with a liquid inlet (2) on the side, and adjacent sampling tubes (1) are installed by means of a quick installation unit, a movable cavity (3) connected to the liquid inlet (2) is provided inside the side wall of the sampling tube (1), a sealing plate (4) for sealing the liquid inlet (2) is movably connected inside the movable cavity (3), a movable cavity (6) is provided through the inside of the side wall of the sampling tube (1), a movable rod (5) penetrating the sealing plate (4) is provided in the movable cavity (6), a first spring (7) sleeved on the side of the movable rod (5) is fixedly connected between the lower side of the sealing plate (4) and the bottom of the movable cavity (3), a retaining ring (8) is fixedly connected to the side of the movable rod (5), and a pressing unit (9) for pressing the movable rod (5) is provided at the uppermost end of the sampling tube (1), and the pressing unit (9) is capable of pressing a plurality of movable rods (5) at the same time.

2. A petroleum refining sampling device according to claim 1, characterized in that: The pressing unit (9) comprises a fixed column (10) which is fixedly connected to one end of the sampling tube (1) and is symmetrical. A pressing plate (11) is sleeved on the two fixed columns (10). A second spring (12) sleeved on the side of the fixed column (10) is fixedly connected between one end of the sampling tube (1) and one side of the pressing plate (11). One side of the pressing plate (11) is fixedly connected to an extrusion rod (13) adapted to the movable rod (5). One end of the extrusion rod (13) abuts against one end of the movable rod (5).

3. A petroleum refining sampling device according to claim 1, characterized in that: The quick installation unit comprises a plurality of clamping blocks (17) fixedly connected to the upper end of the sampling tube (1) located below and arranged in an equidistant array; a clamping groove (14) adapted to the clamping block (17) is provided at the lower end of the sampling tube (1) located above; a push plate (15) is movably connected in the clamping groove (14); a third spring (16) is fixedly connected between one side of the push plate (15) and the inner side wall of the clamping groove (14); and a clamping groove (14) adapted to the clamping block (17) is provided on one side of the clamping block (17). The groove (14) is adapted to an extrusion bevel (18), one side of the push plate (15) exceeds one side of the clamping block (17), and the upper end of the sampling tube (1) located below is provided with a slide groove (21) adapted to the push plate (15), one side of the push plate (15) is fixedly connected to an arc-shaped guide rod (19), and the side wall of the clamping groove (14) is provided with a guide groove (20) adapted to the guide rod (19), and the third spring (16) is sleeved on the side of the guide rod (19).

4. A petroleum refining sampling device according to claim 1, characterized in that: The lower end of the sampling tube (1) is open, and a sealing cover plate (22) is threadedly connected to the lower end of the sampling tube (1).

5. A petroleum refining sampling device according to claim 4, characterized in that: A sinking groove (23) is provided on the lower surface of the cover plate (22), and a clamping strip (24) is fixedly connected in the sinking groove (23).

6. A petroleum refining sampling device according to claim 5, characterized in that: The inner side wall of the lower end of the sampling tube (1) is provided with a step (27) adapted to the cover plate (22); the cover plate (22) is threadedly connected to the side wall of the step (27); and a sealing ring (28) is embedded between the step (27) and the cover plate (22).

7. A petroleum refining sampling device according to claim 1, characterized in that: A connecting rod (25) is fixedly connected to the upper end of the sampling tube (1), and a handle (26) is fixedly mounted on the upper end of the connecting rod (25).

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