Automatic sampler

Abstract

The utility model relates to the technical field of pipeline sampling equipment, in particular to an automatic sampler which comprises a sampling pipe, the sampling pipe is used for being connected with a sampling section, an opening is formed in the upper end of a stretching-in section, stretching into the sampling section, of the sampling pipe, and the end, away from the sampling section, of the sampling pipe is connected with a plugging cover; the discharging pipe is communicated with the sampling pipe, and the discharging pipe is positioned outside the sampling section; an opening is formed in the top wall of the material storage barrel, and the material storage barrel is detachably and fixedly connected with the side, away from the sampling pipe, of the discharging pipe; the sampling valve plate is connected into the sampling pipe in a sliding manner, and the sampling valve plate can divide an inner cavity of the sampling pipe into two chambers; the driving unit is used for driving the sampling valve plate to slide along the axial direction of the sampling tube, is connected with the sampling tube, and extends into the inner cavity of the sampling tube to be connected with the sampling valve plate; the sampling device has the advantages that the sampling operation of the materials in the pipeline is simplified, and meanwhile the possibility that the materials are scattered to influence the surrounding environment is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline sampling equipment, in particular to an automatic sampler. BACKGROUND

[0002] A pipeline sampler is a device used in the industrial field, especially in the petroleum, chemical and other industries, to collect fluid samples from the pipeline. It is designed to obtain representative samples without interrupting fluid delivery, ensuring the accuracy of analysis. Generally, the pipeline sampler has anti-freezing and anti-theft features, and does not need to empty the pipeline before sampling. Its working principle may include special switching mechanisms such as special screws and valve needles, as well as sealing components to ensure safe and effective sampling.

[0003] In order to sample the material in the pipeline, a sampling device special for pipeline is disclosed in the prior art, which comprises a sampling section, both ends of the sampling section are coaxially connected with flanges for butt joint with material conveying pipelines on both sides; an extension pipe is in communication with the sampling section, the extension pipe extends into the inner cavity of the sampling section, and the upper end of the part of the extension pipe extending into the inner cavity of the sampling section is open, and a blocking cover is detachably connected to the end of the extension pipe away from the sampling section; a material taking valve plate is slidingly connected in the extension pipe; a driving rod passes through the blocking cover and is slidingly connected with the blocking cover, the driving rod is coaxially arranged with the extension pipe, and the driving rod is connected with the material taking valve.

[0004] In view of the related technology in the above, when sampling is performed using the sampling device disclosed in the above prior art, the driving rod is first used to apply force to the material taking valve, so that the material taking valve slides along the axial direction of the extension pipe until it slides into the inner cavity of the sampling section. At this time, the material enters between the material taking valve and the blocking cover through the upper end opening of the extension pipe. Then, the driving rod is retracted and the material taking valve is used to bring the material into the inner cavity of the extension pipe. Then, the blocking cover is opened to take out the collected material. However, by the above method for sampling, when the blocking cover is opened to take out the material in the extension pipe, there is a high possibility of material spilling, and when the material in the extension pipe is taken out, a tool needs to be inserted into the extension pipe, which is relatively cumbersome to operate. CONTENT OF THE UTILITY MODEL

[0005] In order to simplify the sampling operation of the material in the pipeline and reduce the possibility of material spilling affecting the surrounding environment, the present application provides an automatic sampler.

[0006] The automatic sampler provided by the present application adopts the following technical scheme:

[0007] An automatic sampler comprises:

[0008] A sampling pipe is used to connect with the sampling section, the sampling pipe is arranged at the upper end of the sampling section, and a sealing cover is connected to the end of the sampling pipe away from the sampling section;

[0009] An outlet pipe is in communication with the sampling pipe, and the outlet pipe is located outside the sampling section;

[0010] A storage cylinder is arranged at the top wall of the storage cylinder, and the storage cylinder is detachably connected to the side of the outlet pipe away from the sampling pipe;

[0011] A sampling valve plate is slidably connected in the sampling pipe, and the sampling valve plate can divide the inner cavity of the sampling pipe into two chambers;

[0012] A driving unit is used to drive the sampling valve plate to slide along the axis of the sampling pipe, the driving unit is connected to the sampling pipe, and the driving unit is arranged in the inner cavity of the sampling pipe and connected to the sampling valve plate.

[0013] By using the above technical scheme, when the material inside the pipe needs to be sampled, the driving unit applies force to the sampling valve plate, the sampling valve plate slides along the axis of the sampling pipe towards the sampling section side, until the sampling valve plate moves to the deep section of the sampling pipe, at this time, the material enters the accommodating cavity formed by the sampling valve plate, the sampling pipe and the upper end opening of the sampling pipe, and the driving unit applies force to the sampling valve plate again, the sampling valve plate slides along the axis of the sampling pipe towards the sealing cover side while moving the material, until the material is completely discharged into the storage cylinder through the outlet pipe, and the above operation is repeated until the material in the storage cylinder is sufficient, at this time, the sampling valve plate separates the inner cavity of the sampling section from the inner cavity of the outlet pipe, the material is intercepted, and the material can be discharged by detaching the storage cylinder; the automatic sampler is designed to form an accommodating cavity for accommodating the material through the sampling pipe and the sampling valve plate, the driving unit can drive the sampling valve plate to slide along the axis of the sampling pipe, and then drive the material obtained by sampling to fall into the storage cylinder through the outlet pipe, and the storage cylinder can store the material obtained by sampling, which simplifies the sampling operation of the material in the pipe and reduces the possibility of material spilling and affecting the surrounding environment.

[0014] In a specific embodiment, the number of sampling valve plates is two, the two sampling valve plates are connected by a connecting rod, and a sampling accommodating cavity is formed between the two sampling valve plates.

[0015] By using the above technical scheme, the two sampling valve plates connected by the connecting rod can form a complete sampling accommodating cavity, and when the material is pushed towards the outlet pipe side, the possibility of material overflowing through the sealing cover side is reduced, and a stable sliding structure can also be formed to avoid the inclination of the sampling valve plate.

[0016] In one specific implementation, the driving unit comprises an electric telescopic rod, a rod body of the electric telescopic rod is connected with the blocking cover, a piston rod of the electric telescopic rod is connected with the sampling valve plate through the blocking cover, and the piston rod of the electric telescopic rod is arranged in a radial direction of the blocking cover.

[0017] By adopting the technical scheme, the driving unit is designed, the electric telescopic rod can drive the sampling valve plate to reciprocate along an axial direction of the sampling tube, and then the sampling operation of the material in the pipeline is completed.

[0018] In one specific implementation, the sampling tube is connected with an exhaust pipe, an inner cavity of the exhaust pipe is communicated with an inner cavity of the sampling tube, and a blocking column is threadedly connected with an end of the exhaust pipe away from the sampling tube, for blocking an opening of the end of the exhaust pipe away from the sampling tube.

[0019] By adopting the technical scheme, the exhaust pipe is designed, which, in cooperation with the blocking column, can facilitate the exhaust of the gas in the inner cavity of the sampling tube during the movement of the sampling valve plate, and facilitate the smooth movement of the sampling valve plate.

[0020] In one specific implementation, an inner wall of the material storage cylinder is threadedly connected with an outer wall of the sampling tube.

[0021] By adopting the technical scheme, the material storage cylinder with the inner wall threadedly connected with the outer wall of the sampling tube can avoid the accumulation of the material on the top wall of the material storage cylinder, and then avoid the problem of material spilling when the material storage cylinder is disassembled.

[0022] In one specific implementation, the sampling device further comprises:

[0023] An abutting ring, the abutting ring is coaxially connected with the sampling tube, and a thickness of the abutting ring gradually decreases towards a side away from an axis of the sampling tube;

[0024] A mounting tube, the mounting tube is connected with the sampling section, an inner diameter of the mounting tube is greater than an outer diameter of the sampling tube, and a fixing ring is coaxially connected with an end of the mounting tube away from the sampling section;

[0025] A fastening unit for abutting the abutting ring and the fixing ring, the fastening unit is connected with the fixing ring, and the fastening unit is connected with the abutting ring.

[0026] By adopting the technical scheme, the fastening unit can apply force to the abutting ring and the fixing ring, so as to abut the abutting ring and the fixing ring, and realize the detachable fixed connection of the sampling tube and the mounting tube.

[0027] In one specific implementation, the fastening unit comprises

[0028] Two fastening half rings, one end of the two fastening half rings are rotatably connected, and the other end is bolted, and the inner side of the fastening half ring is formed with a clamping groove for the abutting ring and the fixing ring to extend into. After the fastening half rings are buckled, the inner wall of the clamping groove simultaneously applies force to the abutting ring and the fixing ring so that the abutting ring and the fixing ring are in contact with each other.

[0029] By adopting the above technical solution, the designed fastening unit can evenly apply force to the abutment ring and the fixing ring through the fastening half ring, thereby improving the fit between the abutment ring and the fixing ring and reducing the possibility of material leakage through the contact point between the abutment ring and the fixing ring.

[0030] In a specific possible implementation scheme, the sampling tube is arranged to be tilted upward from a side close to the sampling section to a side close to the blocking cover.

[0031] By adopting the above technical solution, the possibility of the material impacting the sampling valve plate under the pressure in the pipeline under normal conditions can be reduced.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. The designed automatic sampler forms a holding cavity for accommodating materials through the sampling tube and the sampling valve plate. The driving unit can drive the sampling valve plate to slide along the axial direction of the sampling tube, thereby driving the sampled material to fall into the storage barrel through the discharge pipe. The storage barrel can store the sampled material, simplifying the material sampling operation in the pipeline while reducing the possibility of material spillage affecting the surrounding environment.

[0034] 2. The designed automatic sampler can evenly apply force to the abutting ring and the fixing ring by tightening the half ring, thereby improving the fit between the abutting ring and the fixing ring and reducing the possibility of material leakage through the contact area between the abutting ring and the fixing ring.

[0035] 3. The designed automatic sampler can reduce the possibility of materials impacting the sampling valve plate under the pressure in the pipeline under normal conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the automatic sampler according to an embodiment of the present application.

[0037] Figure 2 yes Figure 1 sectional view of .

[0038] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0039] Figure 4 is Figure 1 The schematic diagram of the structure after adding the exhaust pipe, blocking column and fastening unit.

[0040] Figure 5 is Figure 4 a sectional view.

[0041] Figure 6 is Figure 5 an enlarged view of B in FIG.

[0042] Explanation of reference signs: 01, sampling section; 1, sampling tube; 11, blocking cover; 12, discharge tube; 13, exhaust pipe; 14, blocking column; 2, storage cylinder; 3, sampling valve plate; 4, driving unit; 41, electric telescopic rod; 5, abutting ring; 6, mounting tube; 7, fixing ring; 8, fastening unit; 81, fastening half ring; 811, clamping groove; 9, rubber sealing ring. DETAILED DESCRIPTION

[0043] The following will be described in detail with reference to the accompanying Figures 1-6 Further detailed description will be made to the present application.

[0044] The embodiment of the present application discloses an automatic sampler.

[0045] With reference to Figure 1 and Figure 2 , an automatic sampler comprises a sampling tube 1, a blocking cover 11, a discharge tube 12, a storage cylinder 2, a sampling valve plate 3 and a driving unit 4; the sampling tube 1 is connected with a sampling section 01, one end of the sampling tube 1 extends into the inside of the sampling section 01, and the end of the sampling tube 1 extending into the sampling section 01 is provided with an opening at the upper end of the extending section, the blocking cover 11 is sealingly connected with the sampling tube 1 away from the sampling section 01, the discharge tube 12 is integrally formed with the sampling tube 1, and the discharge tube 12 is located between the sampling section 01 and the blocking cover 11, the inner cavity of the discharge tube 12 is communicated with the inner cavity of the sampling tube 1, the discharge tube 12 is vertically arranged, the top wall of the storage cylinder 2 is provided with an opening, and the inside of the storage cylinder 2 has a storage cavity for storing materials, and the storage cylinder 2 is detachably fixedly connected with the end of the discharge tube 12 away from the sampling tube 1.

[0046] With reference to Figure 2 and Figure 3 , the sampling valve plate 3 is slidingly connected in the sampling tube 1, and the sampling valve plate 3 divides the inner cavity of the sampling tube 1 into two chambers, the driving unit 4 is connected with the sampling tube 1, and the driving unit 4 is connected with the sampling valve plate 3, for driving the sampling valve plate 3 to reciprocally slide along the axial direction of the sampling tube 1, and in order to reduce the possibility that the material under the pressure in the pipeline impacts the sampling valve plate 3 in the conventional state, the sampling tube 1 is arranged to be upwardly inclined from the side close to the sampling section 01 to the side close to the blocking cover 11.

[0047] With reference to Figure 3, in order to reduce the possibility of material overflowing through the side of the closure cover 11 when the sampling valve plate 3 slides towards the side of the closure cover 11, the number of sampling valve plates 3 is set to two, the two sampling valve plates 3 are fixed by connecting rods, and a sampling containing cavity is formed between the two sampling valve plates 3, which can switch between the communication state between the sampling section 01 inner cavity and the discharge pipe 12 inner cavity with the sliding of the sampling valve plate 3; the two sampling valve plates 3 connected by connecting rods can form a complete sampling containing cavity, and when the material is pushed towards the side of the discharge pipe 12, the possibility of material overflowing through the side of the closure cover 11 is reduced.

[0048] Referring to Figure 2 , in order to reduce the amount of material accumulated on the top wall of the storage cylinder 2 when the material falls through the discharge pipe 12 under the action of its own gravity, and to reduce the pollution caused by the spilling of the material to the surrounding environment, the inner wall of the storage cylinder 2 is threadedly connected with the outer wall of the discharge pipe 12.

[0049] Referring to Figure 2 and Figure 3 , the driving unit 4 includes an electric telescopic rod 41, the rod body of the electric telescopic rod 41 is bolted to the closure cover 11, and the piston rod of the electric telescopic rod 41 is welded to the sampling valve plate 3 through the closure cover 11, and the closure cover 11 is provided with a clearance hole to make the piston rod of the electric telescopic rod 41 and the closure cover 11 arranged in the radial direction of the closure cover 11.

[0050] Referring to Figure 4 and Figure 5 , the sampling pipe 1 is integrally connected with an exhaust pipe 13, the inner cavity of the exhaust pipe 13 is in communication with the inner cavity of the sampling pipe 1, and the end of the exhaust pipe 13 away from the sampling pipe 1 is threadedly connected with a closure column 14, the closure column 14 is used to close the opening of the end of the exhaust pipe 13 away from the sampling pipe 1, and the exhaust pipe 13 is located above the discharge pipe 12, and the communication part of the exhaust pipe 13 and the sampling pipe 1 is arranged close to the top area of the sampling pipe 1.

[0051] Referring to Figure 4 and Figure 5 , in order to facilitate the connection of the sampling pipe 1 and the sampling section 01, the automatic sampler further comprises an abutting ring 5, a mounting pipe 6, a fixing ring 7 and a fastening unit 8, the abutting ring 5 is sleeved on the sampling pipe 1, and the abutting ring 5 is coaxially welded to the sampling pipe 1, the thickness of the abutting ring 5 gradually decreases towards the side away from the axis of the sampling pipe 1, the mounting pipe 6 is welded to the sampling section 01, the inner cavity of the mounting pipe 6 is in communication with the inner cavity of the sampling section 01, and the inner diameter of the mounting pipe 6 is greater than the outer diameter of the sampling pipe 1, the fixing ring 7 is coaxially welded to the mounting pipe 6, and when the sampling pipe 1 extends into the sampling section 01 along the axial direction thereof, the abutting ring 5 is driven to move until it is in close contact with the fixing ring 7.

[0052] Referring to Figure 5 andFigure 6 The fastening unit 8 is connected with the fixed ring 7 and the abutment ring 5, and is used to abut the abutment ring 5 and the fixed ring 7. The fastening unit 8 comprises two fastening half-rings 81, one end of which is rotatably connected, and the other end is fixed by a bolt. The inner side of the fastening half-ring 81 is formed with a clamping groove 811 for the abutment ring 5 and the fixed ring 7 to extend into. After the fastening half-ring 81 is fastened by the bolt, the inner wall of the clamping groove 811 simultaneously applies force to the abutment ring 5 and the fixed ring 7, so that the abutment ring 5 and the fixed ring 7 are tightly abutted. The force applied by the fastening half-ring 81 to the abutment ring 5 and the fixed ring 7 is a uniform circumferential force, which can reduce the possibility of material leakage through the abutment of the abutment ring 5 and the fixed ring 7. In order to further reduce the possibility of material leakage through the abutment of the abutment ring 5 and the fixed ring 7, a rubber sealing ring 9 can also be arranged between the abutment ring 5 and the fixed ring 7.

[0053] The implementation principle of the automatic sampler according to the embodiment of the application is as follows: when it is necessary to sample the material in the pipeline, the driving unit 4 applies force to the sampling valve plate 3, the sampling valve plate 3 slides along the axial direction of the sampling pipe 1 to the side of the sampling section 01 until the sampling valve plate 3 moves to the deep section of the sampling pipe 1. At this time, the material enters the containing cavity formed by the sampling valve plate 3, the sampling pipe 1 and the opening at the upper end of the sampling pipe 1. Again, the driving unit 4 applies force to the sampling valve plate 3, the sampling valve plate 3 slides along the axial direction of the sampling pipe 1 to the side of the plugging cover 11 while moving the material, until the material completely enters the storage cylinder 2 through the discharge pipe 12. The above operation is repeated until the material in the storage cylinder 2 is sufficient. At this time, the sampling valve plate 3 separates the inner cavity of the sampling section 01 and the inner cavity of the discharge pipe 12, and the material is intercepted. The storage cylinder 2 is disassembled to pour out the material.

[0054] The above are preferred embodiments of the application, and do not limit the protection scope of the application. Therefore, equivalent changes made on the basis of the structure, shape and principle of the application should be covered by the protection scope of the application.

Claims

1. An automatic sampler, characterized in that: include: A sampling tube (1), the sampling tube (1) is used to be connected to the sampling section (01), the upper end of the insertion section of the sampling tube (1) extending into the sampling section (01) is provided with an opening, and the end of the sampling tube (1) away from the sampling section (01) is connected to a blocking cap (11); a discharge pipe (12), the discharge pipe (12) being in communication with the sampling pipe (1), and the discharge pipe (12) being located outside the sampling section (01); A material storage barrel (2), wherein the top wall of the material storage barrel (2) is provided with an opening, and the material storage barrel (2) is detachably fixedly connected to the side of the discharge pipe (12) away from the sampling tube (1); a sampling valve plate (3), the sampling valve plate (3) being slidably connected to the inside of the sampling tube (1), and the sampling valve plate (3) being capable of dividing the inner cavity of the sampling tube (1) into two chambers; A driving unit (4) is provided for driving a sampling valve plate (3) to slide axially along a sampling tube (1); the driving unit (4) is connected to the sampling tube (1), and the driving unit (4) extends into the inner cavity of the sampling tube (1) and is connected to the sampling valve plate (3).

2. The automatic sampler according to claim 1, characterized in that: There are two sampling valve plates (3), the two sampling valve plates (3) are connected via a connecting rod, and a sampling accommodating cavity is formed between the two sampling valve plates (3).

3. The automatic sampler according to claim 2, characterized in that: The driving unit (4) comprises an electric telescopic rod (41), the rod body of the electric telescopic rod (41) is connected to the blocking cover (11), the piston rod of the electric telescopic rod (41) passes through the blocking cover (11) and is connected to the sampling valve plate (3), and the piston rod of the electric telescopic rod (41) and the blocking cover (11) are staggered along the radial direction of the blocking cover (11).

4. The automatic sampler according to claim 1, characterized in that: The sampling tube (1) is connected to an exhaust pipe (13), the inner cavity of the exhaust pipe (13) is communicated with the inner cavity of the sampling tube (1), and the end of the exhaust pipe (13) away from the sampling tube (1) is threadedly connected to a blocking column (14) for blocking the opening of the exhaust pipe (13) away from the end of the sampling tube (1).

5. The automatic sampler according to claim 1, characterized in that: The inner wall of the material storage barrel (2) is threadedly connected to the outer wall of the sampling tube (1).

6. The automatic sampler according to claim 1, characterized in that: Also includes: an abutment ring (5), the abutment ring (5) being coaxially connected to the sampling tube (1), and the thickness of the abutment ring (5) gradually decreasing toward a side away from the axis of the sampling tube (1); A mounting tube (6), the mounting tube (6) being connected to the sampling section (01), the inner diameter of the mounting tube (6) being larger than the outer diameter of the sampling tube (1), and the end of the mounting tube (6) away from the sampling section (01) being coaxially connected to a fixing ring (7); A fastening unit (8) is used to make the abutment ring (5) and the fixing ring (7) stick together, wherein the fastening unit (8) is connected to the fixing ring (7), and the fastening unit (8) is connected to the abutment ring (5).

7. The automatic sampler according to claim 6, characterized in that: The fastening unit (8) comprises Two fastening half rings (81), one end of the two fastening half rings (81) is rotatably connected, and the other end is bolted, and the inner side of the fastening half ring (81) is formed with a clamping groove (811) for the abutting ring (5) and the fixing ring (7) to extend into, and after the fastening half ring (81) is buckled, the inner wall of the clamping groove (811) simultaneously applies force to the abutting ring (5) and the fixing ring (7) so that the abutting ring (5) and the fixing ring (7) are in contact.

8. The automatic sampler according to any one of claims 1 to 7, characterized in that: The sampling tube (1) is arranged to tilt upward from a side close to the sampling section (01) to a side close to the blocking cover (11).

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