Automatic measuring device for vapor pressure of crude oil

Abstract

The utility model relates to the technical field of crude oil vapor pressure measurement, and discloses an automatic crude oil vapor pressure measuring device which comprises a gas chamber and a pressure gauge, a base is arranged at the bottom of the gas chamber, a water outlet hole is formed in the center of the bottom of the base, a sealing plug for sealing is plugged in the water outlet hole, and the pressure gauge is arranged in the gas chamber. A threaded cylinder is fixedly mounted at the top of the gas chamber, a connecting rod at the bottom of the pressure gauge is provided with threads, and a cleaning assembly is arranged in the gas chamber; the drawing pipe is inserted into the gas chamber, the limiting block slides to the bottom along the limiting groove, then the drawing pipe is twisted to enable the limiting block to be clamped into the limiting groove, the drawing pipe can be drawn up and down back and forth to drive the sponge sleeve to slide up and down back and forth along the inner wall of the gas chamber for cleaning, and meanwhile a cleaning agent is injected into the drawing pipe through the water guide pipe. And the water is sprayed to the inner wall of the gas chamber through the drainage hole, so that the cleaning efficiency is improved, cleaning is convenient, and internal attachments are prevented from influencing the measurement result.

Description

Technical Field

[0001] The utility model relates to the technical field of crude oil vapor pressure measurement, in particular to an automatic crude oil vapor pressure measuring device. Background Technique

[0002] The automatic crude oil vapor pressure measuring device is a precision instrument for measuring the vapor pressure of crude oil. It measures the vapor pressure of crude oil at a certain temperature under specific conditions in an automated manner. Its working principle is based on the gas-liquid equilibrium principle. At a certain temperature, the crude oil sample is placed in a sealed gas chamber container. By heating, the light components in the crude oil volatilize to form gas. Then, the gas pressure in the container is measured, and this pressure is the vapor pressure of the crude oil at this temperature.

[0003] However, during actual use, since the crude oil will adhere and remain on the inner wall of the gas chamber, it will affect the measured vapor pressure result. And the gas chamber is in a long cylinder shape, which is not convenient for cleaning. After long-term use, it will seriously affect the measurement result of the crude oil vapor pressure. Therefore, further improvement can be made. Content of the Utility Model

[0004] To solve the above-mentioned problems, the utility model provides the following technical solution: an automatic crude oil vapor pressure measuring device, including a gas chamber and a pressure gauge. A base is provided at the bottom of the gas chamber. A water outlet hole is opened at the center of the bottom of the base, and a sealing plug for sealing is plugged in the water outlet hole. A threaded cylinder is fixedly installed at the top of the gas chamber. The bottom connecting rod of the pressure gauge is provided with a thread, and the connecting rod is screwed into the threaded cylinder to install the pressure gauge. A cleaning component is arranged inside the gas chamber.

[0005] As an optimization, a plurality of sealing rubber rings are arranged on the outer side of the sealing plug, and the sealing rubber rings are in close contact with the inner wall of the water outlet hole of the base.

[0006] As an optimization, the cleaning component includes a draw tube slidably inserted inside the gas chamber and a cleaning wheel slidably connected inside the gas chamber. The bottom of the draw tube is screwed and clamped at the center of the cleaning wheel. A handle is fixedly installed at the top of the draw tube. By holding the handle and pulling it back and forth, the cleaning wheel will be driven to slide back and forth on the inner wall of the gas chamber, and thus the inner wall will be cleaned.

[0007] As an optimization, a water guide tube is inserted at the center of the top of the handle, and the water guide tube communicates with the inside of the draw tube. Drainage holes are opened at the bottom of the draw tube. By draining water into the draw tube through the water guide tube and then spraying it out through the drainage holes, the inner wall of the gas chamber can be flushed, improving the cleaning effect.

[0008] As an optimization, the cleaning wheel includes a sleeve seat located at the center, and the bottom of the draw tube is inserted into the sleeve seat. A connecting rod is fixedly installed on the outer side of the sleeve seat in an array, and the other end of the connecting rod is fixedly installed with a mounting ring. A sponge sleeve is sleeved on the outer side of the mounting ring, and the sponge sleeve slides along the inner wall of the gas chamber.

[0009] As an optimization, a limiting groove is formed inside the sleeve seat, and a limiting block is fixedly installed on the outer side of the bottom of the draw tube, and the limiting block is clamped in the limiting groove. By inserting the bottom of the draw tube into the sleeve seat, the limiting block is snapped into the limiting groove, which will play a role in limiting, facilitating the back-and-forth movement of the draw tube to drive the mounting ring, and thus facilitating the scrubbing of the inner wall of the gas chamber by the sponge sleeve.

[0010] As an optimization, the limiting groove is in an "L" shape, and three groups of limiting blocks are arranged corresponding to the limiting groove in an array.

[0011] The beneficial effects of the present utility model are as follows:

[0012] For this automatic crude oil vapor pressure measuring device, by inserting the draw tube into the gas chamber, making the limiting block slide to the bottom along the limiting groove, and then twisting the draw tube to make the limiting block snap into the limiting groove, the draw tube can be pulled back and forth up and down to drive the sponge sleeve to slide up and down along the inner wall of the gas chamber for cleaning. At the same time, a cleaning agent is injected into the draw tube through the water guide pipe and sprayed onto the inner wall of the gas chamber through the drain hole, which will improve the cleaning efficiency, thus facilitating cleaning and avoiding the influence of internal attachments on the measurement results. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the present utility model;

[0014] Figure 2 It is a schematic diagram of the sealing structure of the present utility model;

[0015] Figure 3 It is a schematic diagram of the internal structure of the cleaning structure of the present utility model;

[0016] Figure 4 It is a schematic diagram of the cleaning structure of the present utility model.

[0017] In the figure: 1. Gas chamber; 2. Base; 3. Sealing plug; 4. Threaded cylinder; 5. Pressure gauge; 6. Sealing rubber ring; 7. Draw tube; 8. Handle; 9. Water guide pipe; 10. Drain hole; 11. Sleeve seat; 12. Mounting ring; 13. Sponge sleeve; 14. Limiting groove; 15. Limiting block. Detailed Implementation Modes

[0018] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figure 1-2 , a device for automatically measuring the vapor pressure of crude oil, which includes a gas chamber 1 and a pressure gauge 5. A base 2 is provided at the bottom of the gas chamber 1. A water outlet hole is opened at the center of the bottom of the base 2, and a sealing plug 3 for sealing is plugged in the water outlet hole. A plurality of sealing rubber rings 6 are arranged on the outer side of the sealing plug 3, and the sealing rubber rings are in close contact with the inner wall of the water outlet hole of the base 2; a threaded cylinder 4 is fixedly installed at the top of the gas chamber 1. The bottom connecting rod of the pressure gauge 5 is provided with threads, and the connecting rod is screwed into the threaded cylinder 4 to install the pressure gauge 5. A cleaning assembly is arranged inside the gas chamber 1;

[0021] Please refer to Figure 3-4 , the cleaning assembly includes a draw tube 7 slidably inserted inside the gas chamber 1 and a cleaning wheel slidably connected inside the gas chamber 1. The bottom of the draw tube 7 is screwed and clamped at the center of the cleaning wheel. A handle 8 is fixedly installed at the top of the draw tube 7. By holding the handle 8 and pulling it back and forth, the cleaning wheel will be driven to slide back and forth on the inner wall of the gas chamber 1, and thus the inner wall will be cleaned;

[0022] Please refer to Figure 3-4 , a water guide tube 9 is inserted at the center of the top of the handle 8, and the water guide tube 9 communicates with the inside of the draw tube 7. A drain hole 10 is opened at the bottom of the draw tube 7. Water is drained into the draw tube 7 through the water guide tube 9 and then sprayed out through the drain hole 10, so as to wash the inner wall of the gas chamber 1 and improve the cleaning effect;

[0023] Please refer to Figure 3-4, the cleaning wheel includes a sleeve base 11 located at the center, and the bottom of the draw tube 7 is inserted into the sleeve base 11. Connecting rods are fixedly installed in an array on the outer side of the sleeve base 11, and an installation ring 12 is fixedly installed at the other end of the connecting rods. A sponge sleeve 13 is sleeved on the outer side of the installation ring 12, and the sponge sleeve 13 slides along the inner wall of the gas chamber 1;

[0024] Please refer to Figure 3-4 , a limiting groove 14 is formed inside the sleeve base 11. The limiting groove 14 is in an "L" shape. Three groups of limiting blocks 15 are fixedly installed on the outer side of the bottom of the draw tube 7 corresponding to the limiting groove 14, and the limiting blocks 15 are clamped in the limiting groove 14. By inserting the bottom of the draw tube 7 into the sleeve base 11, the limiting blocks 15 are snapped into the limiting groove 14, which will play a limiting role, facilitating the draw tube 7 to drive the installation ring 12 to move back and forth, so as to conveniently scrub the inner wall of the gas chamber 1 through the sponge sleeve 13.

[0025] When in use, first pull out the sealing plug 3, then inject crude oil into the gas chamber 1, and then the measurement can be carried out, and the reading can be taken by observing the pressure gauge 5. After use, by rotating the pressure gauge 5 counterclockwise, the pressure gauge 5 is taken out from the threaded cylinder 4, and then the draw tube 7 can be inserted into the gas chamber 1 along the threaded cylinder 4;

[0026] As the draw tube 7 is gradually inserted into the sleeve base 11, the limiting block 15 will slide to the bottom along the limiting groove 14. Then rotate the draw tube 7 counterclockwise so that the limiting block 15 is clamped in the limiting groove 14, which can play a limiting role. Then the draw tube 7 can be pulled back and forth up and down, which will drive the sponge sleeve 13 to slide back and forth up and down along the inner wall of the gas chamber 1. At the same time, the cleaning agent is discharged into the draw tube 7 through the water guide pipe 9, and is sprayed onto the inner wall of the gas chamber 1 through the drain hole 10, which can further improve the cleaning effect.

[0027] In summary, for this automatic crude oil vapor pressure measuring device, by inserting the draw tube 7 into the gas chamber 1, making the limiting block 15 slide to the bottom along the limiting groove 14, and then rotating the draw tube 7 so that the limiting block 15 is snapped into the limiting groove 14, the draw tube 7 can be pulled back and forth up and down to drive the sponge sleeve 13 to slide back and forth up and down along the inner wall of the gas chamber 1 for cleaning. At the same time, the cleaning agent is injected into the draw tube 7 through the water guide pipe 9 and sprayed onto the inner wall of the gas chamber 1 through the drain hole 10, which will improve the cleaning efficiency, thus facilitating cleaning and avoiding the influence of internal attachments on the measurement results.

[0028] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "arranged", "installed", "connected", "coupled", "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] All standard parts used in the present utility model can be purchased from the market, and the special-shaped parts can be customized according to the description in the specification and the drawings.

[0030] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. An automatic vapor pressure measuring device for crude oil, comprising a gas chamber (1) and a pressure gauge (5), characterized in that: A base (2) is provided at the bottom of the gas chamber (1). A water outlet hole is opened at the center of the bottom of the base (2), and a sealing plug (3) for sealing is plugged in the water outlet hole. A threaded cylinder (4) is fixedly installed at the top of the gas chamber (1). The bottom connecting rod of the pressure gauge (5) is provided with threads, and the connecting rod is screwed into the threaded cylinder (4) to install the pressure gauge (5). A cleaning assembly is arranged inside the gas chamber (1).

2. The automatic crude oil vapor pressure measuring device according to claim 1, characterized in that: A plurality of sealing rubber rings (6) are arranged on the outer side of the sealing plug (3), and the sealing rubber rings are in close contact with the inner wall of the water outlet hole of the base (2).

3. The automatic crude oil vapor pressure measuring device according to claim 1, wherein: The cleaning assembly includes a pull tube (7) slidably inserted inside the gas chamber (1) and a cleaning wheel slidably connected inside the gas chamber (1). The bottom of the pull tube (7) is screwed and clamped at the center of the cleaning wheel. A handle (8) is fixedly installed at the top of the pull tube (7).

4. The automatic crude oil vapor pressure measuring device according to claim 3, wherein: A water guide tube (9) is inserted at the center of the top of the handle (8), and the water guide tube (9) communicates with the inside of the pull tube (7). A drain hole (10) is opened at the bottom of the pull tube (7).

5. The automatic crude oil vapor pressure measuring device according to claim 4, characterized in that: The cleaning wheel includes a sleeve seat (11) at the center, and the bottom of the pull tube (7) is inserted into the sleeve seat (11). Connecting rods are fixedly installed in an array on the outer side of the sleeve seat (11), and an installation ring (12) is fixedly installed at the other end of the connecting rod. A sponge sleeve (13) is sleeved on the outer side of the installation ring (12), and the sponge sleeve (13) slides along the inner wall of the gas chamber (1).

6. The automatic crude oil vapor pressure measuring device according to claim 5, characterized in that: A limiting groove (14) is opened inside the sleeve seat (11), and a limiting block (15) is fixedly installed on the outer side of the bottom of the pull tube (7), and the limiting block (15) is clamped in the limiting groove (14).

7. The automatic crude oil vapor pressure measuring device according to claim 6, characterized in that: The limiting groove (14) is in an "L" shape, and three groups of limiting blocks (15) are arranged corresponding to the limiting groove (14) in an array.

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