A liquid petroleum sampler for bulk storage terminals

Abstract

This invention belongs to the field of petroleum testing technology, and specifically relates to a liquid petroleum sampler for use in oil storage and transportation depots. It includes a mounting plate with a vertical rod rotatably connected to it. A motor for driving the vertical rod to rotate is mounted on the mounting plate. Several sampling components are arranged equidistantly from top to bottom on the vertical rod. Each sampling component includes: a fixed collar, which is fixedly sleeved on the vertical rod; at least one swing tube, which is hinged to the outer wall of the fixed collar, causing the swing tube to deflect upwards when the motor drives the vertical rod to rotate; and a fixed frame, which has a cylindrical structure. This invention utilizes the rotation of the vertical rod to achieve the extension and retraction of the swing tube, facilitating the insertion of the device through the sampling port of the oil tank. It also controls the opening and closing of the heating wire and the sealing and opening of the sampling tube, ensuring close coordination between the heating and sampling steps of the petroleum, thus improving sampling efficiency.

Description

Technical Field

[0001] This invention belongs to the field of petroleum testing technology, and in particular relates to a liquid petroleum sampler for use in oil storage and transportation depots. Background Technology

[0002] Oil storage and transportation depots serve as a link coordinating crude oil production, crude oil processing, refined oil supply, and transportation. The safe storage and supply of oil in these depots are of great significance for safeguarding national defense and promoting the rapid development of the national economy. To ensure the safety of oil storage and transportation depots, it is necessary to use samplers to regularly sample and test the petroleum in the depots.

[0003] Because impurities can accumulate and suspend in the oil tank, the liquid oil in the oil depot can become stratified, resulting in different qualities of oil at different levels. During the sampling process, oil needs to be sampled in batches from different levels, which is very inefficient.

[0004] The prior art uses the following technical means to solve this problem. For example, a petroleum testing and sampling device disclosed in patent number CN113588352A can achieve synchronous stratified sampling by setting up multiple sampling mechanisms to correspond to different depths in the oil tank.

[0005] However, the aforementioned sampling devices are large in size, making it difficult to insert them into the small sampling ports on oil depot tanks, resulting in sampling difficulties. Furthermore, they have limited functionality, lacking the ability to heat the oil and thus failing to maintain good fluidity of the crude oil, leading to poor sampling uniformity and representativeness. Summary of the Invention

[0006] The purpose of this invention is to address the problems of large volume, difficulty in sampling, and poor sampling uniformity and representativeness mentioned above, by providing an easy-to-use liquid petroleum sampler for oil storage and transportation depots that provides good sampling uniformity and representativeness.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a liquid petroleum sampler for oil storage and transportation depots, comprising a mounting plate, a vertical rod rotatably connected to the mounting plate, a motor for driving the vertical rod to rotate mounted on the mounting plate, and a plurality of sampling components arranged equidistantly from top to bottom on the vertical rod;

[0008] The sampling component includes:

[0009] A fixing collar is fixedly sleeved on the upright;

[0010] At least one swing tube is hinged to the outer wall of the fixed collar by a hinge, and when the motor drives the upright to rotate, the swing tube deflects and swings upward.

[0011] A fixing frame, wherein the fixing frame adopts a cylindrical structure;

[0012] A sampling tube, which is slidably fitted within a fixed frame;

[0013] A sealing cap, which is fixed within a fixed frame and is sealed to the end opening of the sampling cylinder;

[0014] The swing tube is equipped with a heating wire, and the side wall of the swing tube is provided with an energizing component for controlling the power supply of the heating wire. When the swing tube swings upward, the heating wire is energized to heat the oil.

[0015] The sealing cover is provided with a heat-absorbing expansion component. When the ambient temperature is below 40°C, the heat-absorbing expansion component extends to limit the sampling cylinder and maintain its sealed state. When the ambient temperature is above 40°C, the heat-absorbing expansion component contracts to release the limitation on the sampling cylinder and separate the sampling cylinder from the sealing cover.

[0016] Preferably, a handle is fixed on the mounting plate, and a heat insulation sleeve is fitted onto the handle.

[0017] Preferably, there are two swing tubes, symmetrically arranged on both sides of the fixing collar.

[0018] Preferably, an opening and closing door is installed at the bottom of the fixed frame, and a compression spring is connected to the opening and closing door, with the other end of the compression spring pressed against the bottom of the sampling cylinder.

[0019] Preferably, the energized assembly includes an arc-shaped tube, an arc-shaped rod, a conductive ring, and a contact piece. The arc-shaped tube is fixed to the upright, and the arc-shaped rod is fixed to the arc-shaped tube. One end of the arc-shaped rod extends into the arc-shaped tube, and the centers of the arc-shaped rod and the arc-shaped tube both fall on the rotation axis of the swing tube and the fixed collar. The conductive ring is fixed to the inner wall of the arc-shaped tube and is connected to an external power supply wire. The contact piece is fixed to the end of the arc-shaped rod and is electrically connected to the heating wire. When the contact piece contacts the conductive ring, the heating wire is energized and heated.

[0020] Preferably, the sealing cover includes a fixed cover plate and a sealing plug, the fixed cover plate is fixedly connected to the fixed frame, and the sealing plug has a frustum-shaped structure.

[0021] Preferably, the heat-absorbing expansion assembly includes a sliding rod, a stretching plate, a temperature memory spring, a pull rod, and a limiting block. The sliding rod is slidably embedded in the fixed cover plate and the sealing plug. The limiting block is slidably embedded on the peripheral wall of the sealing plug. The two ends of the pull rod are respectively hinged to the sliding rod and the limiting block. The stretching plate is fixed to the upper end of the sliding rod. The stretching plate is connected to the fixed cover plate through the temperature memory spring.

[0022] Preferably, the temperature memory spring is made of shape memory alloy material.

[0023] Compared with existing technologies, the advantages of this liquid petroleum sampler used in oil storage and transportation depots are:

[0024] 1. The present invention is provided with a motor, a vertical pole and a swing tube. The swing tube hangs down naturally under the action of gravity and forms a 45° angle with the vertical pole, which makes it easy to insert the vertical pole into the sampling hole of the oil tank. After the vertical pole is inserted into the oil tank, the motor drives the vertical pole to rotate, and under the action of centrifugal force, the swing tube deflects upward to the sampling position.

[0025] 2. This invention, by setting up a heating wire and a power-conducting component, ensures that the pole does not rotate when not sampling, and the conductive ring and the contact plate are not in contact, with the heating wire in a de-energized state. During sampling, the pole rotates, causing the conductive ring to contact the contact plate, automatically energizing the heating wire circuit and heating the petroleum in the sampling area. This improves the fluidity and uniformity of the petroleum, ensuring the representativeness of the sample. Furthermore, the rotating tube agitates the petroleum, ensuring uniform and rapid heating of the petroleum in that area.

[0026] 3. By setting up a heat-absorbing expansion component, the present invention maintains the seal of the sampling cylinder by the sealing cap when the temperature of the oil in the sampling area has not reached the set temperature, thus preventing the oil with poor flowability from entering the sampling cylinder. When the oil reaches the set temperature, the sampling cylinder is automatically opened to carry out the sampling work. Furthermore, the oil heating and sampling steps are closely coordinated to improve the sampling efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a liquid petroleum sampler for an oil storage and transportation depot provided by the present invention before sampling;

[0028] Figure 2 This is a schematic diagram of the sampling structure of a liquid petroleum sampler for oil storage and transportation depots provided by the present invention;

[0029] Figure 3 This is a schematic diagram of the sampling component in a liquid petroleum sampler for use in an oil storage and transportation depot, provided by the present invention.

[0030] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5 This is a schematic diagram of the heat-absorbing and expansion component in a liquid petroleum sampler for use in an oil storage and transportation depot, provided by the present invention.

[0032] In the diagram, 1 is the mounting plate; 11 is the handle; 2 is the upright; 3 is the motor; 4 is the sampling assembly; 41 is the fixing collar; 42 is the swing tube; 43 is the fixing frame; 431 is the opening and closing door; 432 is the compression spring; 44 is the sampling cylinder; 45 is the sealing cover; 451 is the fixing cover plate; 452 is the sealing plug; 46 is the heating wire; 5 is the power-conducting assembly; 51 is the arc-shaped tube; 52 is the arc-shaped rod; 53 is the conductive ring; 54 is the contact piece; 6 is the heat-absorbing telescopic assembly; 61 is the sliding rod; 62 is the tension plate; 63 is the temperature memory spring; 64 is the pull rod; and 65 is the limit block. Detailed Implementation

[0033] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0034] like Figure 1-5 As shown, a liquid petroleum sampler for oil storage and transportation depots includes a mounting plate 1, a vertical rod 2 rotatably connected to the mounting plate 1, a motor 3 for driving the vertical rod 2 to rotate mounted on the mounting plate 1, and a plurality of sampling components 4 arranged equidistantly from top to bottom on the vertical rod 2.

[0035] Sampling component 4 includes:

[0036] Fixed collar 41 is fixedly sleeved on the upright 2;

[0037] At least one swing tube 42 is hinged to the outer wall of the fixed collar 41. The swing tube 42 hangs down naturally under the action of gravity and forms a 45° angle with the upright 2, which makes it easy to insert the upright 2 into the sampling hole of the oil tank. After the upright 2 is inserted into the oil tank, the motor 3 drives the upright 2 to rotate, and under the action of centrifugal force, the swing tube 42 deflects upward to the sampling position.

[0038] Fixed frame 43, fixed frame 43 adopts a cylindrical structure;

[0039] Sampling cylinder 44 is slidably fitted within fixed frame 43;

[0040] The sealing cap 45 is fixed inside the fixing frame 43, and the sealing cap 45 is sealed and matched with the end opening of the sampling cylinder 44.

[0041] An electric heating wire 46 is installed inside the swing tube 42. An electric heating component 5 for controlling the electric heating wire 46 to be energized is provided on the side wall of the swing tube 42. When the swing tube 42 swings upward, the electric heating wire 46 is energized to heat the oil.

[0042] A heat-absorbing expansion component 6 is provided inside the sealing cover 45. When the ambient temperature is below 40°C, the heat-absorbing expansion component 6 extends to limit the sampling cylinder 44 and maintain its sealed state. When the ambient temperature is above 40°C, the heat-absorbing expansion component 6 contracts to release the limitation on the sampling cylinder 44, so that the sampling cylinder 44 is separated from the sealing cover 45.

[0043] A handle 11 is fixed on the mounting plate 1, and a heat insulation sleeve is fitted on the handle 11.

[0044] There are two swing tubes 42, which are symmetrically arranged on both sides of the fixed collar 41.

[0045] A door 431 is installed at the bottom of the fixed frame 43. A compression spring 432 is connected to the door 431. The other end of the compression spring 432 is pressed against the bottom of the sampling cylinder 44. In its natural state, the compression spring 432 is pressed against the bottom of the sampling cylinder 44, so that the upper opening of the sampling cylinder 44 is in close contact with the sealing cover 45, maintaining the sealing state of the sampling cylinder 44. When the upright 2 rotates, the compression spring 432 is compressed under the action of centrifugal force, which can separate the sampling cylinder 44 from the sealing cover 45.

[0046] The energized assembly 5 includes an arc-shaped tube 51, an arc-shaped rod 52, a conductive ring 53, and a contact piece 54. The arc-shaped tube 51 is fixed to the upright 2, and the arc-shaped rod 52 is fixed to the arc-shaped tube 51. One end of the arc-shaped rod 52 extends into the arc-shaped tube 51, and the centers of the arc-shaped rod 52 and the arc-shaped tube 51 both fall on the rotation axis of the swing tube 42 and the fixed collar 41. The conductive ring 53 is fixed to the inner wall of the arc-shaped tube 51 and is connected to an external power supply wire. The contact piece 54 is fixed to the end of the arc-shaped rod 52 and is electrically connected to the heating wire 46. When the swing tube 42 is at a 45° angle to the upright 2, the contact piece 54 does not contact the conductive ring 53. When the swing tube 42 is deflected upward to the sampling position, the contact piece 54 moves within the arc-shaped tube 51 through the arc-shaped rod 52 and contacts the conductive ring 53, thereby energizing and heating the heating wire 46.

[0047] When not sampling, the upright rod 2 does not rotate, and the conductive ring 53 is not in contact with the contact piece 54, and the heating wire is in a de-energized state. When sampling, the upright rod 2 rotates, causing the conductive ring 53 to contact the contact piece 54, which automatically turns on the circuit of the heating wire 46, heating the petroleum in the sampling area to improve the fluidity and uniformity of the petroleum and ensure the representativeness of the sample. In addition, when the swing tube 42 rotates, it can agitate the petroleum to ensure that the petroleum in the area heats up uniformly and rapidly.

[0048] The sealing cover 45 includes a fixed cover plate 451 and a sealing plug 452. The fixed cover plate 451 is fixedly connected to the fixed frame 43, and the sealing plug 452 has a frustum-shaped structure.

[0049] The heat-absorbing expansion assembly 6 includes a sliding rod 61, a stretching plate 62, a temperature memory spring 63, a pull rod 64, and a limiting block 65. The sliding rod 61 is slidably embedded in the fixed cover plate 451 and the sealing plug 452. The limiting block 65 is slidably embedded in the peripheral wall of the sealing plug 452. The two ends of the pull rod 64 are respectively hinged to the sliding rod 61 and the limiting block 65. The stretching plate 62 is fixed to the upper end of the sliding rod 61. The stretching plate 62 is connected to the fixed cover plate 451 through the temperature memory spring 63. The temperature memory spring 63 is made of shape memory alloy material. In this embodiment, the temperature memory... The spring 63 is a nickel-titanium alloy. Its crystal structure is different above and below 40°C. However, when the temperature changes around 40°C, the alloy will shrink or expand, causing its shape to change. When the temperature of the oil in the sampling area has not reached the set temperature, the sealing cap 45 keeps the sampling cylinder 44 sealed to prevent the oil with poor flowability from entering the sampling cylinder 44. When the oil reaches the set temperature, the sampling cylinder 44 is automatically opened to carry out the sampling work. This ensures that the oil heating and sampling steps are closely coordinated, improving the sampling efficiency.

[0050] The working principle of this embodiment is as follows:

[0051] When in use, the swing tube 42 hangs down naturally under the action of gravity and forms a 45° angle with the upright 2, which makes it easy to insert the upright 2 into the sampling hole of the oil tank. After the upright 2 is inserted into the oil tank, the motor 3 drives the upright 2 to rotate, and under the action of centrifugal force, the swing tube 42 deflects upward to the sampling position.

[0052] After the swing tube 42 is deflected upward to the sampling position, the arc rod 52 moves the electric contact piece 54 inside the arc tube 51 and contacts the conductive ring 53, so that the heating wire 46 is energized and heated to heat the oil in the sampling area, thereby improving the fluidity and uniformity of the oil and ensuring the representativeness of the sample. In addition, when the swing tube 42 rotates, it can stir the oil to ensure that the oil in the area is heated evenly and rapidly.

[0053] When the petroleum in the sampling area is heated to 40°, the temperature memory spring 63 pushes the tension plate 62 to move. Through the sliding rod 61 and the pull rod 64, the limiting block 65 is pulled back into the sealing plug 452, releasing the limitation on the sampling cylinder 44. Under the action of centrifugal force, the compression spring 432 is compressed, which allows the sampling cylinder 44 to separate from the sealing cover 45. After sampling is completed, the motor 3 is turned off, the upright 2 stops rotating, the compression spring 432 returns to its original length, and pushes the upper opening of the sampling cylinder 44 to fit tightly with the sealing cover 45. The upright 2 hangs down again to form a 45° angle with the upright 2, and the upright 2 can be taken out. Then, the opening and closing door 431 at the bottom of the fixing frame 43 is opened to take out the sampling cylinder 44.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A liquid petroleum sampler for use in oil storage and transportation depots, comprising a mounting plate (1), characterized in that, A vertical pole (2) is rotatably connected to the mounting plate (1). A motor (3) for driving the vertical pole (2) to rotate is installed on the mounting plate (1). Several sampling components (4) are arranged equidistantly from top to bottom on the vertical pole (2). The sampling component (4) includes: A fixing collar (41) is fixedly sleeved on the upright (2); At least one swing tube (42) is hinged to the outer wall of the fixed collar (41) by a hinge. When the motor (3) drives the upright (2) to rotate, the swing tube (42) swings upward. A fixed frame (43) is provided, wherein the fixed frame (43) adopts a cylindrical structure; Sampling tube (44), which is slidably fitted within the fixed frame (43); A sealing cap (45) is fixed inside a fixing frame (43), and the sealing cap (45) is sealed and matched with the end opening of the sampling cylinder (44); The swing tube (42) is equipped with a heating wire (46), and the side wall of the swing tube (42) is provided with an energizing component (5) for controlling the energization of the heating wire (46). When the swing tube (42) swings upward, the heating wire (46) is energized to heat the petroleum. The sealing cover (45) is provided with a heat-absorbing expansion component (6). When the ambient temperature is below 40°C, the heat-absorbing expansion component (6) extends to limit the sampling cylinder (44) and maintain its sealed state. When the ambient temperature is above 40°C, the heat-absorbing expansion component (6) contracts to release the limitation on the sampling cylinder (44) and separate the sampling cylinder (44) from the sealing cover (45).

2. The liquid petroleum sampler for oil storage and transportation depots according to claim 1, characterized in that, A handle (11) is fixed on the mounting plate (1), and a heat insulation sleeve is fitted on the handle (11).

3. The liquid petroleum sampler for oil storage and transportation depots according to claim 1, characterized in that, There are two swing tubes (42), which are symmetrically arranged on both sides of the fixed collar (41).

4. The liquid petroleum sampler for oil storage and transportation depots according to claim 1, characterized in that, The bottom of the fixed frame (43) is equipped with an opening and closing door (431), and a compression spring (432) is connected to the opening and closing door (431). The other end of the compression spring (432) is attached to the bottom of the sampling cylinder (44).

5. The liquid petroleum sampler for oil storage and transportation depots according to claim 4, characterized in that, The energized assembly (5) includes an arc-shaped tube (51), an arc-shaped rod (52), a conductive ring (53), and a contact piece (54). The arc-shaped tube (51) is fixed on the upright (2), and the arc-shaped rod (52) is fixed on the arc-shaped tube (51). One end of the arc-shaped rod (52) extends into the arc-shaped tube (51), and the centers of the arc-shaped rod (52) and the arc-shaped tube (51) both fall on the rotation axis of the swing tube (42) and the fixed collar (41). The conductive ring (53) is fixed on the inner wall of the arc-shaped tube (51) and is connected to an external power supply wire. The contact piece (54) is fixed to the end of the arc-shaped rod (52) and is electrically connected to the heating wire (46). When the contact piece (54) contacts the conductive ring (53), the heating wire (46) is energized and heated.

6. The liquid petroleum sampler for oil storage and transportation depots according to claim 1, characterized in that, The sealing cover (45) includes a fixed cover plate (451) and a sealing plug (452). The fixed cover plate (451) is fixedly connected to the fixed frame (43), and the sealing plug (452) has a frustum-shaped structure.

7. The liquid petroleum sampler for oil storage and transportation depots according to claim 6, characterized in that, The heat-absorbing expansion assembly (6) includes a sliding rod (61), a stretching plate (62), a temperature memory spring (63), a pull rod (64), and a limiting block (65). The sliding rod (61) is slidably embedded in the fixed cover plate (451) and the sealing plug (452). The limiting block (65) is slidably embedded on the peripheral wall of the sealing plug (452). The two ends of the pull rod (64) are respectively hinged to the sliding rod (61) and the limiting block (65). The stretching plate (62) is fixed to the upper end of the sliding rod (61). The stretching plate (62) is connected to the fixed cover plate (451) through the temperature memory spring (63).

8. The liquid petroleum sampler for oil storage and transportation depots according to claim 7, characterized in that, The temperature memory spring (63) is made of shape memory alloy material.

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