Manual solid-liquid product pipeline sampler

Abstract

The utility model provides a manual solid-liquid product pipeline sampler, relates to the technical field of multiphase flow pipeline transportation, and solves the technical problems that when an existing solid-liquid product pipeline sampler is used for sampling, due to the fact that the flow speed of slurry is reduced, solids are easy to deposit, and uneven sampling is easy to cause. The top end pipe is connected with a sampling pipeline, the outer body pipe is arranged on the top end pipe, the inner body pipe is arranged on the outer body pipe in a sliding mode, the inner body pipe is provided with an open type sampling bin, and the sampling bin is provided with at least one set of baffles used for controlling the sampling bin to be opened and closed in a sliding mode. According to the utility model, the installation process is simple, the sampling part can be accurately controlled according to the insertion depth of the sampling bin in the sampling process, the sample still stably flows before sampling, the uniform distribution of the solid sample in the slurry is ensured, and the non-uniform distribution of the sampled solid sample is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of multiphase flow pipeline transportation, in particular to a manual solid-liquid product pipeline sampler. Background Art

[0002] In modern industries such as petroleum, chemical industry, nuclear power, marine engineering and other fields, pipelines are widely used to transport various types of fluid materials. The fluids in many pipelines are mostly multiphase flows. It is necessary to sample and analyze representative samples inside the multiphase flow pipelines and measure their physical parameters such as water content, sediment concentration, components, concentration, pH, and sediment content. Although some pipelines are equipped with online measuring instruments that can realize real-time measurement of physical parameters in the fluid, the measurement indicators are often single, the supporting measuring instruments are expensive, and the collected samples may not be representative. Therefore, it is necessary to conduct in-situ sampling of samples inside the multiphase flow pipelines and determine the characteristic parameters of the multiphase flow liquid using laboratory analysis methods. Timely, accurate, and uniform sampling is as important as the laboratory work itself.

[0003] Existing pipeline sampling devices are generally divided into the following types: the first is to bypass a branch pipe on the main pipeline and then connect it to a valve. When sampling, the valve is opened and the fluid in the main pipeline flows out under the action of the internal pressure of the pipeline, achieving the purpose of sampling; the second is an improvement on the first sampling device, eliminating the bypass pipe and adding a sampling mechanism that takes samples by other means, while the basic principle remains unchanged; the third is to install a sampling tube deep into the main pipeline and achieve sampling of the fluid in the pipeline through other mechanisms. All three of the above methods have obvious disadvantages: 1. Because the branch pipe of the first sampling device is connected to the wall of the main pipeline, the sample taken is the fluid at the wall. However, the physical state (concentration, flow rate, distribution, etc.) of the fluid in the pipeline multiphase flow is different at different sections of the pipeline, resulting in systematic errors in sampling; in addition, because the bypass branch pipe has a certain length, the branch pipe may contain stagnant fluid for a long time, affecting the purity of the next sample; third, if the fluid in the pipeline is very viscous or easily solidifies, it is very easy to cause the branch pipe to become clogged, affecting sampling. 2. While the second type of sampling device solves the problems of impure sampling and easy clogging of branch pipes, it can still only obtain samples from a certain point on the main pipe wall, resulting in sampling system errors. 3. The third type of sampling device simply moves the sampling point from the pipe wall to the middle of the pipe. This can obtain samples of the mainstream fluid in the pipe, but it cannot sample samples at the pipe wall, which still results in certain errors. Furthermore, since the sampling tube is always located in the center of the main pipe, the sampling tube itself has a certain size and shape, which can seriously hinder the flow capacity of the main pipe (especially when the main pipe diameter is small), and even cause pipe blockage.

[0004] Therefore, patent publication number CN110243635A proposes a sampling device for accurately measuring the concentration of solid-liquid two-phase flow in a pipe. The device uses a worm gear screw elevator to drive a sampling rod up and down within the main pipe, achieving multi-point precise sampling at different heights within the main pipe. However, this device uses a vacuum to create negative pressure to absorb samples, which requires high sealing performance. Moreover, during vacuum absorption, as the slurry flow direction changes and the flow rate decreases, the distribution of solid particles becomes more uneven. When the velocity decreases to a certain level, solid particles may even settle, making it difficult to be absorbed together with the slurry. This makes it easy for solid-liquid two-phase samples to be absorbed unevenly, resulting in measurement errors. For example, when using a solid-phase method to produce lithium iron phosphate, a positive electrode material for batteries, both liquid and solid are present, and the solute particle size in the liquid is relatively small compared to the solid particle size, which can easily lead to uneven sampling and measurement errors. Utility Model Content

[0005] The purpose of the utility model is to provide a manual solid-liquid product pipeline sampler to solve the technical problem of uneven sampling caused by the easy deposition of solids due to the decrease in slurry flow rate during sampling in existing solid-liquid product pipeline samplers.

[0006] The embodiments of the present invention are achieved through the following technical solutions:

[0007] A manual solid-liquid product pipeline sampler includes a top tube connected to a sampling pipeline, an outer body tube arranged on the top tube, and an inner body tube slidably arranged on the outer body tube. The inner body tube is provided with an open sampling chamber, and the sampling chamber is slidably provided with at least one set of baffles for controlling the opening and closing of the sampling chamber.

[0008] Preferably, the sampling chamber is provided with two groups of opposite through holes for passing the sample, a first slot for inserting the baffle, and a limiting mechanism for limiting and guiding the baffle.

[0009] Preferably, the limiting mechanism includes a guide block for guiding the baffle to be inserted into the first slot and a plurality of groups of limiting bars for fixing and limiting the baffle in the sampling chamber.

[0010] Preferably, the limiting mechanism further includes a second slot for fixing and sealing the baffle insertion end and a limiting block for limiting the baffle insertion end, and the limiting strips are distributed on the same side of the first slot and the second slot.

[0011] Preferably, the outer tube is further provided with a plurality of first sealing rings for sealing the inner tube.

[0012] Preferably, the outer tube is further axially provided with scale lines for marking the sliding distance of the inner tube.

[0013] Preferably, the outer tube is also connected to a funnel for receiving samples collected by the sampling chamber, the funnel is connected to a collecting bottle through an external thread, and the funnel is also provided with a second sealing ring for sealing with the inner tube.

[0014] Preferably, the inner body tube is further provided with a sealing head for sealing the sampling chamber, and the sealing head is provided with a limiting ring for preventing the inner body tube from slipping outward.

[0015] Preferably, the inner body tube is further provided with a handle for pulling the inner body tube to slide.

[0016] Preferably, the outer body tube is connected to the top tube via threads.

[0017] When using this technical solution, when installing, first install the limiting ring of the inner tube head on the side of the first sealing ring of the outer tube close to the sampling pipe, connect the sampling chamber, inner tube, etc. in sequence, and then install the entire device through the top tube in the radial direction of the sampling pipe;

[0018] When in use, estimate the depth of the sampling chamber to be inserted according to the part where sampling is required, and then push the sampling chamber to the designated part by pushing the handle. The sample in the pipeline flows normally through the through hole of the sampling chamber, reducing the obstruction of the pipeline. When the device is stable and the sample flows smoothly in the sampling pipeline, quickly push the baffle to insert the baffle into the first slot along the guide block, and then insert it into the second slot along the guide bar until it touches the limit block, fix the baffle, and the originally open sampling chamber becomes a split and semi-closed type. The semi-open cavity facing the sample flow direction is quickly stored and sampled, and then the sampling chamber is pulled out. When it is pulled above the funnel, the baffle is pulled open, and the sample taken is transported to the funnel under the action of gravity, and further sent to the collection bottle to complete the sampling;

[0019] The above installation process is simple. The sampling process can accurately control the sampling position according to the insertion depth of the sampling chamber. The sample is still flowing smoothly before sampling to ensure that the solid sample is evenly distributed in the slurry. The semi-closed cavity sampling is formed by quickly inserting the plug-in plate. At the same time, there are corresponding seals between the inner body tube and the outer body tube, and between the inner body tube and the funnel to ensure that the device is well sealed to prevent sample leakage or leakage of the sample pipeline.

[0020] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0021] 1. The installation process of the utility model is simple. The sampling position can be accurately controlled according to the insertion depth of the sampling chamber during the sampling process. The sample is still flowing smoothly before sampling, ensuring that the solid sample is evenly distributed in the slurry and avoiding uneven distribution of the sampled solid sample.

[0022] 2. The inner tube and the outer tube of the utility model are provided with corresponding sealing parts between the inner tube and the funnel to ensure good sealing of the device, thereby preventing the sample from leaking or causing leakage of the sample pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the structure of the manual solid-liquid product pipeline sampler provided in Example 1 of the present utility model;

[0025] Figure 2 A schematic diagram of the three-dimensional structure of a sampling chamber of a manual solid-liquid product pipeline sampler provided in Example 1 of the present utility model;

[0026] Figure 3 A schematic diagram of a portion of the structure of a sampling chamber of a manual solid-liquid product pipeline sampler provided in Example 1 of the present utility model;

[0027] Figure 4 This is a schematic structural diagram of the inner tube body and outer tube body of the manual solid-liquid product pipeline sampler provided in Example 2 of the present utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the inner tube body of the manual solid-liquid product pipeline sampler provided in Example 3 of the present utility model;

[0029] Icons: 1. Sampling pipe; 2. Top tube; 3. Outer body tube; 31. Scale line; 32. First sealing ring; 4. Inner body tube; 41. Handle; 42. Head; 421. Limiting ring; 5. Sampling chamber; 51. Baffle; 52. Guide block; 531. First slot; 532. Second slot; 54. Limiting strip; 55. Limiting block; 56. Through hole; 6. Funnel; 61. External thread; 62. Second sealing ring; 7. Collection bottle. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0033] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0034] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] Example 1

[0036] A manual solid-liquid product pipeline sampler includes a top tube 2 connected to a sampling pipeline 1, an outer body tube 3 provided on the top tube 2, and an inner body tube 4 slidably provided on the outer body tube 3. The inner body tube 4 is provided with an open sampling chamber 5, and the sampling chamber 5 is slidably provided with a group of baffles 51 for controlling the opening and closing of the sampling chamber 5.

[0037] In this embodiment, the sampling chamber 5 is provided with two sets of opposite through holes 56 for passing samples, a first slot 531 for inserting the baffle 51 , and a limiting mechanism for limiting and guiding the baffle 51 .

[0038] In this embodiment, the limiting mechanism includes a guide block 52 for guiding the baffle 51 to be inserted into the first slot 531 and a plurality of groups of limiting bars 54 for fixing and limiting the baffle 51 in the sampling chamber 5 .

[0039] In this embodiment, the limiting mechanism also includes a second slot 532 for fixing and sealing the insertion end of the baffle 51 and a limiting block 55 for limiting the insertion end of the baffle 51. The limiting strip 54 is distributed on the same side of the first slot 531 and the second slot 532.

[0040] In this embodiment, the outer tube 3 is further axially provided with a scale line 31 for marking the sliding distance of the inner tube 4 .

[0041] In this embodiment, the outer body tube 3 is connected to the top tube 2 via threads.

[0042] Example 2

[0043] The only difference between this embodiment and embodiment 1 is that, in this embodiment, the outer tube 3 is further provided with a plurality of first sealing rings 32 for sealing the inner tube 4 .

[0044] In this embodiment, the outer tube 3 is also connected to a funnel 6 for receiving samples collected by the sampling chamber 5. The funnel 6 is threadedly connected to a collecting bottle 7 through an external thread 61. The funnel 6 is also provided with a second sealing ring 62 for sealing with the inner tube 4.

[0045] In this embodiment, the inner tube 4 is further provided with a handle 41 for pulling the inner tube 4 to slide.

[0046] Example 3

[0047] The only difference between this embodiment and embodiment 1 is that the baffles 51 are provided in two groups, forming a closed cavity in the middle.

[0048] In this embodiment, the inner tube 4 is further provided with a sealing head 42 for sealing the sampling chamber 5 , and the sealing head 42 is provided with a limiting ring 421 for preventing the inner tube 4 from slipping outward.

[0049] Working principle and usage process:

[0050] During installation, first install the limiting ring 421 of the head 42 of the inner tube 4 on the side of the first sealing ring 32 of the outer tube 3 close to the sampling pipe 1, connect the sampling chamber 5, the inner tube 4, etc. in sequence, and then install the entire device through the top tube 2 in the radial direction of the sampling pipe 1;

[0051] During use, the depth to which the sampling chamber 5 needs to be inserted is estimated according to the location where sampling is required, and then the sampling chamber 5 is sent to the designated location by pushing the handle 41. The sample in the pipeline flows normally through the through hole 56 of the sampling chamber 5, reducing the obstruction of the pipeline. When the device is stable and the sample in the sampling pipeline 1 flows smoothly, the baffle 51 is quickly pushed to insert the baffle 51 into the first slot 531 along the guide block 52, and then insert it into the second slot 532 along the guide bar until it touches the limit block 55, and then fix the baffle 51. The originally open sampling chamber 5 becomes a split and semi-closed type. The semi-open cavity facing the sample flow direction is quickly stored and sampled, and then the sampling chamber 5 is pulled out. When it is pulled above the funnel 6, the baffle 51 is pulled open, and the sample taken is transported to the funnel 6 under the action of gravity, and further sent to the collecting bottle 7 to complete the sampling.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A manual solid-liquid product pipeline sampler, comprising a top tube (2) connected to a sampling pipeline (1), an outer body tube (3) provided on the top tube (2), and an inner body tube (4) slidably provided on the outer body tube (3), characterized in that: The inner tube (4) is provided with an open sampling chamber (5), and the sampling chamber (5) is slidably provided with at least one set of baffles (51) for controlling the opening and closing of the sampling chamber (5).

2. A manual solid-liquid product pipeline sampler according to claim 1, characterized in that: The sampling chamber (5) is provided with two groups of opposite through holes (56) for passing samples, a first slot (531) for inserting the baffle (51), and a limiting mechanism for limiting and guiding the baffle (51).

3. A manual solid-liquid product pipeline sampler according to claim 2, characterized in that: The limiting mechanism comprises a guide block (52) for guiding the baffle (51) to be inserted into the first slot (531) and a plurality of groups of limiting bars (54) for fixing and limiting the baffle (51) in the sampling chamber (5).

4. A manual solid-liquid product pipeline sampler according to claim 3, characterized in that: The limiting mechanism further comprises a second slot (532) for fixing and sealing the insertion end of the baffle (51) and a limiting block (55) for limiting the insertion end of the baffle (51); the limiting strip (54) is distributed on the same side of the first slot (531) and the second slot (532).

5. A manual solid-liquid product pipeline sampler according to any one of claims 1 to 4, characterized in that: The outer tube (3) is also provided with a plurality of first sealing rings (32) for sealing the inner tube (4).

6. A manual solid-liquid product pipeline sampler according to any one of claims 1 to 4, characterized in that: The outer tube (3) is also axially provided with a scale line (31) for marking the sliding distance of the inner tube (4).

7. A manual solid-liquid product pipeline sampler according to any one of claims 1 to 4, characterized in that: The outer tube (3) is also connected to a funnel (6) for receiving samples collected by the sampling chamber (5); the funnel (6) is threadedly connected to a collecting bottle (7) via an external thread (61); and the funnel (6) is also provided with a second sealing ring (62) for sealing with the inner tube (4).

8. A manual solid-liquid product pipeline sampler according to any one of claims 1 to 4, characterized in that: The inner tube (4) is further provided with a sealing head (42) for sealing the sampling chamber (5), and the sealing head (42) is provided with a limiting ring (421) for preventing the inner tube (4) from slipping outward.

9. A manual solid-liquid product pipeline sampler according to any one of claims 1 to 4, characterized in that: The inner tube (4) is also provided with a handle (41) for pulling the inner tube (4) to slide.

10. A manual solid-liquid product pipeline sampler according to any one of claims 1 to 4, characterized in that: The outer body tube (3) is connected to the top tube (2) via threads.

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