Sampling device for petroleum sample detection

Abstract

The utility model relates to the technical field of petroleum sampling, and discloses a sampling device for petroleum sample detection, which comprises a tank body, the lower end face of the tank body is connected with a load bearing disc, the center of the lower end face of the load bearing disc is provided with a through hole, the upper end of the tank body is in threaded connection with a tank cover, and a collecting structure is arranged in the tank body. The tank body comprises a first corrosion-resistant layer, a base layer and a second corrosion-resistant layer, and the first corrosion-resistant layer and the second corrosion-resistant layer are arranged on the two sides of the base layer respectively. According to the utility model, the tank body is made of the composite material, the epoxy resin has excellent adhesive force, chemical resistance and water resistance, the stainless steel has good corrosion resistance and oxidation resistance, and the polytetrafluoroethylene has excellent corrosion resistance and chemical stability, so that the tank body has a good protection effect both inside and outside; and the overall service life can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of petroleum sampling technology, and in particular to a sampling device for petroleum sample testing. Background Technology

[0002] As an important component of the global energy structure, the exploration, extraction, and subsequent processing of petroleum resources have always been a core focus of the industrial sector. In the process of petroleum exploration and extraction, obtaining accurate and reliable petroleum samples is crucial for assessing reservoir characteristics, analyzing reservoir fluid properties, and optimizing extraction strategies.

[0003] Existing petroleum sampling devices, due to their relatively simple structure, often suffer from difficulty in sinking and obtaining petroleum samples. Furthermore, due to the density and corrosive nature of petroleum, conventional materials become difficult to clean after a period of use, necessitating replacement to ensure continued usability. This increases overall usage and replacement costs. Moreover, existing sampling equipment is not convenient to carry. Therefore, those skilled in the art have provided a petroleum sample testing device to address the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sampling device for petroleum sample testing. The device is placed in a petroleum storage container or tank. Under the weight of a counterweight, the entire unit slowly descends into the petroleum. As the tank descends, the stop block and the movable rod are lifted upwards by the cooperation of the stop block and the conical groove, thereby compressing the upper spring. At this time, the collection hole is opened, and petroleum enters the tank through the collection hole. Simultaneously, the petroleum undergoes simple filtration under the action of a filter screen, isolating petroleum containing small amounts of impurities at the lower end of the filter screen, thus facilitating subsequent sample testing. After collection, by lifting the entire unit upwards, the stop block slowly returns to its original shape under the action of the spring. The cooperation between the boss and the side wall of the stop block seals the collection hole, thereby achieving non-contact collection and convenient operation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sampling device for petroleum sample testing, comprising a tank, a weighted disc connected to the lower end face of the tank, a through hole opened at the center of the lower end face of the weighted disc, a tank cover threadedly connected to the upper end of the tank, and a collection structure provided inside the tank;

[0006] The collection structure includes a stop block disposed on the lower inner wall of the tank. A boss is fixedly connected to the lower end of the center of the side wall of the stop block. A collection hole is provided at the center of the lower inner wall of the tank below the stop block. The lower end of the collection hole penetrates the lower inner wall of the tank and leads to the lower end. A conical groove is provided at the center of the lower end face of the stop block. A filter screen is fixedly connected to the center of the upper end face of the stop block. A movable rod is fixedly connected to the center of the upper end face of the filter screen. A limiting disc is sleeved and connected at the upper end of the center of the side wall of the movable rod. A spring is sleeved on the side wall of the movable rod above the limiting disc. The upper and lower ends of the spring are fixedly connected to the lower end face of the tank lid and the upper end face of the limiting disc, respectively. A movable hole is provided at the center of the upper end face of the tank lid. The lower end of the movable hole penetrates the upper end face of the tank lid and leads to the lower end. The upper end of the movable rod penetrates the movable hole and leads to the upper end, and a connecting block is fixedly connected to the end of the rod. A connecting ring is fixedly connected to the center of the upper end face of the connecting block.

[0007] With the above technical solution, during use, the entire unit is placed in an oil storage tank or container. Under the gravity of the load-bearing plate, the entire unit slowly descends into the oil. As the tank descends, the stop and the movable rod are pushed upwards by the cooperation of the stop and the conical groove, thereby driving the upper spring to compress. At this time, the collection hole is opened, and the oil enters the tank through the collection hole. During collection, the oil is simply filtered by the filter screen. Oil containing a small amount of impurities is isolated at the lower end of the filter screen, which facilitates subsequent sample testing and processing. After collection, by lifting the entire unit upwards, the stop slowly returns to its original shape under the action of the spring. With the cooperation of the boss and the side wall of the stop, the collection hole is sealed, thus achieving non-contact collection and convenient operation.

[0008] Furthermore, the tank body includes a first corrosion-resistant layer, a base layer, and a second corrosion-resistant layer, wherein the first corrosion-resistant layer and the second corrosion-resistant layer are respectively disposed on both sides of the base layer;

[0009] Through the above technical solution, by setting the tank material to a composite material, the two corrosion-resistant layers provide excellent protection both inside and outside.

[0010] Furthermore, connecting rods are fixedly connected to the upper ends of the center of the two side walls of the tank, and a handle is provided at the upper end of the tank lid. The lower ends of the handles are rotatably connected to the side walls of the two connecting rods.

[0011] The above technical solution allows for easy adjustment of the connection angle between the handle and the can, thus achieving a portable effect.

[0012] Furthermore, a circular groove is provided on the side wall of the load-bearing disc, and the load-bearing disc is made of stainless steel.

[0013] Through the above technical solution, residual oil can adhere to the circular groove, which can be used for subsequent comparative testing. Stainless steel has a certain weight while preventing oil from corroding it.

[0014] Furthermore, the upper end face of the handle is provided with connecting holes at the center of the two sides, and the lower ends of the two connecting holes pass through the upper end face of the handle and lead to the lower end respectively.

[0015] The above technical solution facilitates its use in conjunction with connecting ropes.

[0016] Furthermore, the material of the stop is polyurethane;

[0017] The above technical solution has excellent buoyancy and corrosion resistance.

[0018] Furthermore, the materials of the first corrosion-resistant layer, the base layer, and the second corrosion-resistant layer are epoxy resin, stainless steel, and polytetrafluoroethylene, respectively;

[0019] Through the above technical solutions, epoxy resin has excellent adhesion, chemical resistance and water resistance, stainless steel has good corrosion resistance and oxidation resistance, and polytetrafluoroethylene has excellent corrosion resistance and chemical stability.

[0020] Furthermore, the filter screen is made of Hastelloy;

[0021] The above technical solutions can effectively prevent the corrosive effects of the components inside petroleum.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by setting up a collection structure, the entire unit is placed in an oil storage tank or container. Under the gravity of the load-bearing plate, the entire unit slowly descends into the interior of the oil. As the tank descends, the stop block and the movable rod are pushed upwards by the cooperation of the stop block and the conical groove, thereby driving the upper spring to compress. At this time, the collection hole is opened, and the oil enters the interior of the tank through the collection hole. After collection is completed, by lifting the entire unit upwards, the stop block slowly returns to its original shape under the action of the spring. With the cooperation of the boss and the side wall of the stop block, the collection hole is closed, thereby achieving non-contact collection and facilitating operation.

[0024] 2. In this utility model, by setting a filter screen, the oil is simply filtered during collection. Oil containing a small amount of impurities is isolated at the lower end of the filter screen, which facilitates subsequent sample detection and processing. At the same time, it can be compared with the oil sample attached to the circular groove to obtain the specific impurity content.

[0025] 3. In this utility model, by setting the tank body as a composite material, epoxy resin has excellent adhesion, chemical resistance and water resistance, stainless steel has good corrosion resistance and oxidation resistance, and polytetrafluoroethylene has excellent corrosion resistance and chemical stability, which provides good protection both inside and outside, and can improve the overall service life. Attached Figure Description

[0026] Figure 1 This is an isometric view of a sampling device for petroleum sample testing proposed in this utility model;

[0027] Figure 2 Another perspective is shown in the isometric view of a sampling device for petroleum sample testing proposed in this utility model.

[0028] Figure 3 This is an isometric sectional view of a sampling device for petroleum sample testing proposed in this utility model;

[0029] Figure 4 This is a partial isometric sectional view of the tank in a sampling device for petroleum sample testing proposed in this utility model.

[0030] Legend:

[0031] 1. Tank body; 101. First corrosion-resistant layer; 102. Base layer; 103. Second corrosion-resistant layer; 2. Connecting rod; 3. Tank cover; 4. Handle; 5. Connecting hole; 6. Collection structure; 601. Connecting ring; 602. Connecting block; 603. Movable hole; 604. Collection hole; 605. Spring; 606. Limiting disc; 607. Stop block; 608. Boss; 609. Conical groove; 610. Movable rod; 7. Loading disc; 8. Circular groove; 9. Through hole; 10. Filter screen. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1-4 An embodiment of this utility model is provided: a sampling device for petroleum sample testing, including a tank body 1, a weight plate 7 connected to the lower end face of the tank body 1, a through hole 9 opened at the center of the lower end face of the weight plate 7, a tank cover 3 threadedly connected to the upper end of the tank body 1, and a collection structure 6 provided inside the tank body 1.

[0034] The collection structure 6 includes a stop block 607, which is disposed on the lower inner wall of the tank body 1. A boss 608 is fixedly connected to the lower end of the side wall of the stop block 607. A collection hole 604 is provided at the center of the lower inner wall of the tank body 1 below the stop block 607. The lower end of the collection hole 604 penetrates the lower inner wall of the tank body 1 and leads to the lower end. A conical groove 609 is provided at the center of the lower end face of the stop block 607. A filter screen 10 is fixedly connected to the center of the upper end face of the stop block 607. During collection, the oil is simply filtered by the filter screen 10. In the filtration process, petroleum containing a small amount of impurities is isolated at the lower end of the filter screen 10, facilitating subsequent sample testing and processing. It can also be compared with the petroleum sample attached to the circular groove 8 to determine the specific impurity content. A movable rod 610 is fixedly connected to the center of the upper end face of the filter screen 10. A limiting disc 606 is sleeved and connected to the upper end of the side wall of the movable rod 610. A spring 605 is sleeved on the side wall of the movable rod 610 above the limiting disc 606. The upper and lower ends of the spring 605 are fixedly connected to the lower end face of the can lid 3 and... On the upper surface of the limiting disc 606, a movable hole 603 is provided at the center of the upper surface of the tank cover 3. The lower end of the movable hole 603 passes through the upper surface of the tank cover 3 and extends to the lower end. The upper end of the movable rod 610 passes through the movable hole 603 and extends to the upper end, and a connecting block 602 is fixedly connected to its end. A connecting ring 601 is fixedly connected to the center of the upper surface of the connecting block 602. By placing the entire assembly in an oil storage container or storage tank, under the gravity of the load-bearing disc 7, the entire assembly will slowly descend into the interior of the oil. As the tank body 1 descends, the stop block 601 will cause the oil to be drawn downwards. With the cooperation of 07 and conical groove 609, a certain amount of air is stored at the lower end. The stop block 607 and movable rod 610 are pushed upward, thereby driving the upper spring 605 to compress. At this time, the collection hole 604 is opened, and oil enters the interior of tank 1 through the collection hole 604. After collection is completed, by lifting the whole structure upward, the stop block 607 slowly returns to its original shape under the action of spring 605. With the cooperation of boss 608 and the side wall of stop block 607, the collection hole 604 is closed, thereby realizing non-contact collection and facilitating operation.

[0035] The tank body 1 includes a first corrosion-resistant layer 101, a base layer 102, and a second corrosion-resistant layer 103. The first corrosion-resistant layer 101 and the second corrosion-resistant layer 103 are respectively disposed on both sides of the base layer 102. Epoxy resin has excellent adhesion, chemical resistance, and water resistance. Stainless steel has good corrosion resistance and oxidation resistance. Polytetrafluoroethylene has excellent corrosion resistance and chemical stability. It has a good protective effect both inside and outside, which can improve the overall service life.

[0036] Connecting rods 2 are fixedly connected to the upper part of the center of the two side walls of the can body 1. A handle 4 is provided at the upper end of the can lid 3. The two sides of the lower end of the handle 4 are rotatably connected to the side walls of the two connecting rods 2, so as to facilitate the adjustment of the connection angle between the handle 4 and the can body 1, thereby achieving the effect of easy carrying.

[0037] The side wall of the load-bearing plate 7 is provided with a circular groove 8, and the load-bearing plate 7 is made of stainless steel. The upper end face of the handle 4 is provided with connecting holes 5 near the two side edges. The lower ends of the two connecting holes 5 pass through the upper end face of the handle 4 and lead to the lower end respectively. The stop block 607 is made of polyurethane. The first corrosion-resistant layer 101, the base layer 102 and the second corrosion-resistant layer 103 are made of epoxy resin, stainless steel and polytetrafluoroethylene respectively. The filter screen 10 is made of Hastelloy.

[0038] Working Principle: This utility model is a sampling device for petroleum sample testing. In use, the entire device is placed in a petroleum storage container or tank. Under the gravity of the load-bearing plate 7, the entire device slowly descends into the petroleum. Simultaneously, due to the cooperation of the stop block 607 and the conical groove 609, a certain amount of air is stored at the lower end. The stop block 607 and the movable rod 610 are pushed upwards, thereby driving the upper spring 605 to compress. At this time, the collection hole 604 is opened, and the petroleum enters the interior of the tank 1 through the collection hole 604. After collection, by lifting the entire device upwards, the stop block 607 slowly returns to its original shape under the action of the spring 605. With the cooperation of the boss 608 and the side wall of the stop block 607... The collection port 604 is sealed to achieve contactless collection, which is convenient for operation. During collection, the oil is simply filtered by the filter screen 10. Oil containing a small amount of impurities is isolated at the lower end of the filter screen 10, which facilitates subsequent sample testing and processing. At the same time, it can be compared with the oil sample attached to the circular groove 8 to determine the specific impurity content. By setting the tank body 1 to a multi-layer composite material, epoxy resin has excellent adhesion, chemical resistance and water resistance, stainless steel has good corrosion resistance and oxidation resistance, and polytetrafluoroethylene has excellent corrosion resistance and chemical stability. It has a good protective effect both inside and outside, which can improve the overall service life.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sampling device for detecting a petroleum sample, comprising a tank body (1), characterized in that: The lower end face of the tank body (1) is connected with a weight bearing disc (7), a through hole (9) is formed in the center of the lower end face of the weight bearing disc (7), the upper end of the tank body (1) is threadedly connected with a tank cover (3), and the inside of the tank body (1) is provided with a collecting structure (6). The collecting structure (6) comprises a stop block (607), which is arranged on the lower inner wall of the tank body (1), a boss (608) is fixedly connected to the center of the lower end of the side wall of the stop block (607), a collecting hole (604) is arranged at the center of the lower inner wall of the tank body (1) at the lower end of the stop block (607), the lower end of the collecting hole (604) penetrates the lower inner wall of the tank body (1) and reaches the lower end, a conical groove (609) is arranged at the center of the lower end face of the stop block (607), a filter screen (10) is fixedly connected to the center of the upper end face of the stop block (607), an active rod (610) is fixedly connected to the center of the upper end face of the filter screen (10), a limiting disc (606) is sleeved and connected to the center of the upper end of the side wall of the active rod (610), a spring (605) is sleeved on the side wall of the active rod (610) at the upper end of the limiting disc (606), the upper and lower ends of the spring (605) are fixedly connected to the lower end face of the tank cover (3) and the upper end face of the limiting disc (606) respectively, an active hole (603) is arranged at the center of the upper end face of the tank cover (3), the lower end of the active hole (603) penetrates the upper end face of the tank cover (3) and reaches the lower end, the upper end of the active rod (610) penetrates the active hole (603) and reaches the upper end, and a connecting block (602) is fixedly connected to the end, the center of the upper end face of the connecting block (602) is fixedly connected with a connecting lifting ring (601).

2. The sampling device for detecting petroleum sample according to claim 1, characterized in that: The tank body (1) comprises a first corrosion-resistant layer (101), a base layer (102) and a second corrosion-resistant layer (103), and the first corrosion-resistant layer (101) and the second corrosion-resistant layer (103) are arranged on both sides of the base layer (102) respectively.

3. The sampling device for detecting petroleum sample according to claim 1, characterized in that: The center of the upper end of each side wall of the tank body (1) is fixedly connected with a connecting rod (2), the upper end of the tank cover (3) is provided with a handle (4), and the lower end of each side of the handle (4) is rotatably connected to the side wall of each connecting rod (2).

4. The sampling device for detecting petroleum sample according to claim 1, characterized in that: A circular groove (8) is arranged on the side wall of the weight bearing disc (7), and the material of the weight bearing disc (7) is stainless steel.

5. The sampling device for detecting petroleum sample according to claim 3, characterized in that: The center of the upper end face of the handle (4) is provided with a connecting hole (5) on both sides of the edge, and the lower end of each connecting hole (5) penetrates the upper end face of the handle (4) and reaches the lower end.

6. The sampling device for detecting petroleum sample according to claim 1, characterized in that: The material of the stop block (607) is polyurethane.

7. The sampling device for detecting petroleum sample according to claim 2, characterized in that: The materials of the first corrosion-resistant layer (101), the base layer (102) and the second corrosion-resistant layer (103) are epoxy resin, stainless steel and polytetrafluoroethylene respectively.

8. The sampling device for detecting petroleum sample according to claim 1, characterized in that: The material of the filter screen (10) is hastelloy.

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