Sampling device of inner floating roof storage tank

Abstract

The utility model relates to the technical field of sampling, and discloses a sampling device of an inner floating roof storage tank, which comprises a tank body, a floating plate is slidably connected in the tank body, at least one connecting column is fixedly connected in the tank body, a sampling tube is fixedly connected in the tank body, the floating plate is provided with insertion holes matched with the connecting columns and the sampling tube, and the sampling tube is connected with the floating plate. At least one through hole is formed in the sampling pipe, a sliding block is slidably connected into the sampling pipe, a moving mechanism for driving the sliding block to ascend and descend is fixedly connected to the tank body, at least one cylinder is arranged on the sliding block, inserting grooves are formed in the two sides of each cylinder correspondingly, inserting columns are movably inserted into the inserting grooves, and the inserting columns are inserted into the inserting grooves. Compared with the prior art, the sampling device has the advantages that the sampling device can be opened after reaching a specified position, so that the sampling device cannot be doped with liquid above, and a test result is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling, in particular to a sampling device for an internal floating roof storage tank. Background Art

[0002] Internal floating roof tank is a commonly used type of storage tank, which is widely used in petroleum, chemical, pharmaceutical and other industries. The characteristic of internal floating roof tank is that a floating roof is set inside the tank body, and the floating roof can move with the rise and fall of the liquid level in the tank.

[0003] In order to analyze and evaluate the quality and composition of the liquid in the internal floating roof tank, it is necessary to take samples. At the same time, sampling can detect whether there are impurities and contamination in the liquid. There is a special sampling tube on the internal floating roof. Sampling can be carried out by placing the sampler into the sampling tube.

[0004] When sampling an internal floating roof tank, samples are usually taken multiple times and then mixed in equal proportions. This will make the test results more accurate. During sampling, since the sampler is open, the sampler will be mixed with the liquid above when sampling the bottom liquid, which will cause the test results to be biased. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The technical problem to be solved by the utility model is that during sampling, since the sampler is open, the sampler is mixed with the liquid above when sampling the bottom liquid, thus causing deviation in the test result.

[0007] (II) Technical solution

[0008] To solve the above technical problems, the technical solution provided by the utility model is: a sampling device for an internal floating roof storage tank, comprising a tank body, a floating plate slidably connected to the tank body, at least one connecting column fixedly connected to the tank body, a sampling tube fixedly connected to the tank body, the floating plate is provided with a socket matching the connecting column and the sampling tube, the sampling tube is provided with at least one through hole, a slider slidably connected to the sampling tube, a moving mechanism for driving the slider to rise and fall is fixedly connected to the tank body, at least one cylinder is provided on the slider, the cylinder is provided with slots correspondingly arranged on both sides, a column is movably inserted in the slot, one end of the column is fixedly connected to a limiting column, a spring sleeved on the column is fixedly connected between the limiting column and the inner wall of the slot, one end of the column is fixedly connected to a shielding cover, and one end of the shielding cover is provided with a rope.

[0009] As an improvement, the moving mechanism includes fixed rods arranged correspondingly on both sides of the sampling tube, the fixed rods are provided with a slide groove, the slide groove is slidably connected with a slider, the tank body is located in the sampling tube and is rotatably connected with a screw rod, the tank body is provided with a bracket, and the bracket is fixedly connected with a motor that drives the screw rod to rotate.

[0010] As an improvement, the cylinder is provided with fixing plates arranged correspondingly on two sides, and the fixing plates are threadedly connected with bolts cooperating with the sliding blocks.

[0011] As an improvement, the shielding cover surface is provided with a sealing ring.

[0012] As an improvement, the length of the fixing rod is greater than the length of the sampling tube, and a clamping block is fixedly connected to one end of the fixing rod.

[0013] (III) Beneficial effects

[0014] The advantages of the utility model compared with the prior art are:

[0015] The motor drives the screw to rotate, thereby driving the slider to rise and fall, so that liquids at different depths can be sampled. Through the action of the rope and the spring, the shielding cover will only be opened when the specified depth is reached, thereby making the sampled liquid more accurate and the final result more precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a stereoscopic diagram of a sampling device for an internal floating roof storage tank.

[0017] Figure 2 The utility model is an exploded view of a sampling device for an internal floating roof storage tank.

[0018] Figure 3 It is an enlarged view of location A of a sampling device for an internal floating roof storage tank of the utility model.

[0019] Figure 4 The utility model is a cross-sectional view of a sampling device for an internal floating roof storage tank.

[0020] Figure 5 It is an enlarged view of location B of a sampling device for an internal floating roof storage tank of the utility model.

[0021] Figure 6 The utility model discloses an exploded view of a cylinder of a sampling device of an internal floating roof storage tank and its external connecting parts.

[0022] As shown in the figure: 1. Tank body; 2. Floating plate; 3. Connecting column; 4. Sampling tube; 5. Socket; 6. Through hole; 7. Slider; 8. Cylinder; 9. Slot; 10. Plug column; 11. Limit column; 12. Spring; 13. Shielding cover; 14. Rope; 15. Fixing rod; 16. Screw; 17. Bracket; 18. Motor; 19. Fixing plate; 20. Bolt; 21. Block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] like Figure 1 , Figure 2 , Figure 6 As shown, a sampling device for an internal floating roof storage tank comprises a tank body 1, a floating plate 2 is slidably connected in the tank body 1, at least one connecting column 3 is fixedly connected in the tank body 1, a sampling tube 4 is fixedly connected in the tank body 1, a jack 5 matching with the connecting column 3 and the sampling tube 4 is provided on the floating plate 2, at least one through hole 6 is provided on the sampling tube 4, a slider 7 is slidably connected in the sampling tube 4, and fixing rods 15 correspondingly arranged on both sides are provided in the sampling tube 4, and the length of the fixing rods 15 is greater than the length of the sampling tube 4. A clamping block 21 is fixedly connected to one end of the fixing rod 15, a sliding groove is provided on the fixing rod 15, a slider 7 is slidably connected to the sliding groove, a screw 16 is rotatably connected to the tank body 1 in the sampling tube 4, a bracket 17 is provided on the tank body 1, a motor 18 for driving the screw 16 to rotate is fixedly connected to the bracket 17, the screw 16 is driven to rotate by the motor 18, the slider 7 is driven up and down by the screw 16, the slider 7 is limited by the sliding groove, sampling is performed through the sampling tube 4, and the slider 7 is prevented from falling off by the clamping block 21.

[0025] like Figures 2 to 5As shown, the slider 7 is provided with at least one cylinder 8, the cylinder 8 is provided with fixing plates 19 arranged correspondingly on both sides, the fixing plates 19 are threadedly connected with bolts 20 cooperating with the slider 7, the cylinder 8 is provided with slots 9 arranged correspondingly on both sides, a plug post 10 is movably inserted in the slot 9, one end of the plug post 10 is fixedly connected to a limiting column 11, a spring 12 sleeved on the plug post 10 is fixedly connected between the limiting column 11 and the inner wall of the slot 9, one end of the plug post 10 is fixedly connected to a shielding cover 13, one end of the shielding cover 13 is provided with a rope 14, the length of the rope 14 is greater than the height of the tank body 1, and a sealing ring is provided on the surface of the shielding cover 13, the cylinder 8 can be fixed to the slider 7 by the bolts 20 and the fixing plates 19, the shielding cover 13 can be closed by the action of the spring 12 in the slot 9, and the opening of the shielding cover 13 is controlled by the rope 14.

[0026] In specific use, when sampling is required, the motor 18 is started, the motor 18 drives the screw 16 to rotate, and the screw 16 drives the slider 7 to move downward. When the specified position is reached, the motor 18 is turned off, and then the rope 14 is pulled, and the rope 14 drives the shielding cover 13 to move upward. At this time, the limit column 11 squeezes the spring 12 to deform the spring 12, and then the shielding cover 13 moves away from the cylinder 8. At this time, the liquid enters the cylinder 8. When it is full, the rope 14 is released, and the spring 12 generates elastic force to push the limit column 11 to move downward, thereby driving the shielding cover 13 to fit with the cylinder 8 to complete the collection, and then continue to start the motor 18 to complete the sampling of the liquid at the other two depths. After the sampling is completed, the motor 18 is started, and the motor 18 drives the screw 16 to rotate, thereby driving the slider 7 to rise, and then the bolt 20 is turned to remove the cylinder 8 to complete the sampling of the liquid.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0029] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A sampling device for an internal floating roof storage tank, comprising a tank body (1), a floating plate (2) slidably connected inside the tank body (1), at least one connecting column (3) fixedly connected inside the tank body (1), a sampling tube (4) fixedly connected inside the tank body (1), a socket (5) matched with the connecting column (3) and the sampling tube (4) provided on the floating plate (2), and at least one through hole (6) provided on the sampling tube (4), characterized in that: A slider (7) is slidably connected inside the sampling tube (4), and a moving mechanism for driving the slider (7) to move up and down is fixedly connected to the tank body (1); The slider (7) is provided with at least one cylinder (8), the cylinder (8) is provided with slots (9) arranged correspondingly on both sides, a plug post (10) is movably inserted into the slot (9), and one end of the plug post (10) is fixedly connected to a limiting post (11); A spring (12) sleeved on the plug post (10) is fixedly connected between the limit post (11) and the inner wall of the slot (9); a shielding cover (13) is fixedly connected to one end of the plug post (10); and a rope (14) is provided at one end of the shielding cover (13).

2. The sampling device for an internal floating roof storage tank according to claim 1, characterized in that: The moving mechanism comprises fixed rods (15) arranged correspondingly on both sides of the sampling tube (4), the fixed rods (15) being provided with a slide groove, the slide groove being slidably connected to a slider (7), the tank body (1) being rotatably connected to a screw rod (16) located in the sampling tube (4), the tank body (1) being provided with a bracket (17), the bracket (17) being fixedly connected to a motor (18) for driving the screw rod (16) to rotate.

3. The sampling device for an internal floating roof storage tank according to claim 1, characterized in that: The cylinder (8) is provided with fixing plates (19) arranged correspondingly on both sides, and the fixing plates (19) are threadedly connected with bolts (20) that cooperate with the slider (7).

4. The sampling device for an internal floating roof storage tank according to claim 1, characterized in that: A sealing ring is provided on the surface of the shielding cover (13).

5. The sampling device for an internal floating roof storage tank according to claim 2, characterized in that: The length of the fixing rod (15) is greater than the length of the sampling tube (4), and a clamping block (21) is fixedly connected to one end of the fixing rod (15).

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