Sample automatic receiving and sending device of pneumatic sample delivery system

Abstract

The application provides a sample automatic receiving and sending device of a pneumatic sample feeding system, which comprises a receiving and sending cylinder, the receiving and sending cylinder comprises a lifting device, the lifting device is internally provided with a gas cavity, the gas cavity is provided with an air inlet interface, and the top of the gas cavity is provided with an end face sealing ring. The simple structure of the air cylinder, the piston rod, the guide sleeve and the end face sealing ring is adopted, so that the sample can be timely and accurately transported to the receiving end of the conveying pipeline, and meanwhile, the sample sent through the sample feeding pipeline can be received. In the case of a large amount of samples, fast and efficient transfer can also be realized.

Description

Technical Field

[0001] This invention relates to the field of nuclear sample delivery technology, and in particular to an automatic sample receiving and dispatching device for a pneumatic sample delivery system. Background Technology

[0002] Samples generated in nuclear-related process systems need to be transported to an analytical center for analysis and processing. Samples are typically contained in sample vials and transported using a sample vial protection device. Initially, the transport of nuclear-related process samples was generally done manually, which was not only inefficient but also posed safety hazards. Now, due to increased automation, radioactive nuclear-related process samples are generally transported in sample protection devices using automated transfer systems, with pneumatic sample delivery systems becoming an important transport method.

[0003] Because different process lines produce different samples, and the analysis center needs to receive different samples at different positions, sample transport from the process lines to the analysis center generally involves centralized transfer at the sub-items before being sent to the analysis positions in an orderly manner. Pneumatic sample delivery systems typically employ automated receiving and sending devices that use automatic grippers to pick up samples from the receiving end and place them at the sending end, or vice versa. To ensure safe, orderly, accurate, and efficient sample transport, the sending end needs to automatically feed the samples into the delivery pipeline and send them under a certain air pressure. The process involves a large variety and quantity of samples, many of which are radioactive. Manual transfer presents problems such as untimely sample transport, potential leakage of radioactive samples, safety hazards, and disruption to the entire production process. Therefore, it is necessary to propose an automated sample receiving and sending device for a pneumatic sample delivery system to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic sample receiving and dispatching device for a pneumatic sample delivery system, which can effectively replace manual labor in the transportation and transfer of a large number and variety of radioactive samples in nuclear-related processes. This avoids radiation damage to personnel during the transportation and transfer of radioactive process samples, while reducing labor intensity and improving the overall production efficiency of the process.

[0005] According to the purpose of this invention, an automatic sample receiving and sending device for a pneumatic sample delivery system is provided, including a receiving and sending cylinder. The receiving and sending cylinder includes a lifting device, and the lifting device has an air chamber inside. The air chamber has an air inlet port, and the top of the air chamber has an end face sealing ring.

[0006] Furthermore, the receiver includes a cylinder, a piston rod is fixedly connected to the cylinder, the piston rod is fixed to the top of the cylinder, a pressure plate is fixedly connected to the top of the piston rod, and the end face sealing ring is embedded in the top end face of the pressure plate.

[0007] Furthermore, the cylinder is fixed to the side of the guide sleeve.

[0008] Furthermore, the guide sleeve and the mounting base are fixedly connected by a snap fastener.

[0009] Furthermore, a buffer pad is embedded at the top of the piston rod, and the pressure plate presses on top of the buffer pad.

[0010] Furthermore, the piston rod is slidably connected to the guide sleeve via a sliding sleeve and a piston seal.

[0011] Furthermore, the sliding sleeve is installed inside the guide sleeve, and the sliding sleeve is fixedly connected to the guide sleeve.

[0012] Furthermore, the piston seal is embedded inside the guide sleeve.

[0013] Furthermore, the air intake port is fixedly connected to the guide sleeve.

[0014] Furthermore, the air inlet includes a main air inlet and a buffer air inlet. The main air inlet is connected to the main air delivery pipe of the air control box; the buffer air inlet is connected to the buffer air path of the air control box and receives air.

[0015] The technical solution of this invention, through the use of a simple structure such as a cylinder, piston rod, guide sleeve, and end face sealing ring, enables samples to be delivered to the receiving end of the delivery pipeline in a timely and accurate manner, while simultaneously receiving samples sent through the sample delivery pipeline. Even with a large sample volume, rapid and efficient transfer can be achieved. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present invention;

[0019] In the diagram, 1. End face sealing ring; 2. Pressure plate; 3. Piston rod; 4. Cylinder; 5. Guide sleeve; 6. Buckle; 7. Mounting base; 8. Air inlet; 9. Sliding sleeve; 10. Buffer pad; 11. Piston seal. Detailed Implementation

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] Example 1

[0024] like Figures 1-2 As shown:

[0025] An automatic sample receiving and sending device for a pneumatic sample delivery system includes a receiving and sending tube, which includes a cylinder 4 and a guide sleeve 5. The cylinder 4 is fixedly connected to the guide sleeve 5 and is fixed on the side of the guide sleeve 5. The guide sleeve 5 is fixedly connected to the mounting base 7 by a buckle 6.

[0026] The piston rod 3 is fixedly connected to the cylinder 4, and the piston rod 3 is fixed to the top of the cylinder 4; the pressure plate 2 is fixedly connected to the piston rod 3; the buffer pad 10 is embedded in the top of the piston rod 3, and the pressure plate 2 presses on the buffer pad 10; the end face sealing ring 1 is embedded in the top end face of the pressure plate 2.

[0027] The piston rod 3 is slidably connected to the guide sleeve 5 via the sliding sleeve 9 and the piston seal 11; the sliding sleeve 9 is installed inside the guide sleeve 5 and is fixedly connected to the guide sleeve 5; the piston seal 11 is embedded inside the guide sleeve 5; the air intake port 8 is fixedly connected to the guide sleeve 5.

[0028] In this embodiment, the cylinder 4 drives the piston rod 3 to move up and down inside the guide sleeve 5. When the cylinder 4 extends to its full stroke, the end face sealing ring 1 on the top end face of the pressure plate 2 is compressed to form a sealing structure. When the cylinder 4 retracts to its full stroke, the end face sealing ring 1 on the top end face of the pressure plate 2 is released. Gas enters the guide sleeve 5 through the air inlet 8 and is then discharged through the top.

[0029] The air inlet 8 includes a main air inlet and a buffer air inlet. The main air inlet is connected to the main air delivery pipe of the gas control box to deliver the sample protection device. When receiving the sample, the buffer air inlet is connected to the buffer air path of the gas control box and air is introduced, so that the sample protection device starts to decelerate when it is about to approach the receiving end bend, preventing the sample protection device from being damaged by impact due to excessive speed.

[0030] In this embodiment, cylinder 4 is a finished standard part, and the housing is made of aluminum alloy. Cylinder 4 is connected to piston rod 3. When it is raised to full stroke, the top of the sample tray is in contact with the bottom of the sending outlet of the sending device, and at the same time, the end face sealing ring 1 is pressed to ensure that the conveyed gas does not leak.

[0031] In this embodiment, the piston rod 3 is made of 321 stainless steel and is manufactured as a single piece without welding. The outer surface of the piston rod 3 is polished. The piston rod 3 moves up and down with the cylinder, connecting to the air passage. An end face sealing ring 1 is installed at the upper end of the piston rod 3, and a groove is designed at the receiving clip to stabilize the sample protection device. A buffer pad is provided in the groove of the piston rod 3 to cushion the sample protection device and prevent damage to it.

[0032] The guide sleeve 5 is made of 321 stainless steel and is machined as a single piece. The guide sleeve 5 is mainly used for guiding the piston rod 3 and conveying gas, ensuring the sealing integrity of both ends of the delivery pipeline and preventing leakage during main blowing and buffer gas operation. The main blowing port is connected to the main blowing pipe of the gas control box to blow the sample protection device. When receiving samples, the buffer gas port is connected to the buffer gas path of the gas control box and allows air to enter, thus causing the sample protection device to decelerate as it approaches the receiving end bend, preventing damage due to excessive speed. The piston seal 11 is made of nitrile rubber with a Shore hardness of 70, and the sliding sleeve 9 is made of polytetrafluoroethylene. The mounting base 7 is made of aerospace-grade aluminum alloy and is used to fix the guide sleeve, and it has stainless steel clips 6 for quick replacement of the guide sleeve and cylinder.

[0033] This invention features a telescopic cylinder capable of lifting and lowering. When the electric gripper at the transmitting end places the sample onto the transmitting tube at the top of the telescopic cylinder, the cylinder rises to its full stroke. The top surface of the transceiver tube then aligns with the bottom end of the transmitting outlet of the transmitting pipeline docking device, delivering the sample to the transceiver end of the conveying pipeline. Simultaneously, a sealing ring on the end face is tightened to ensure no leakage of the conveyed gas. The lower part of the transceiver tube is connected to the main blowing path and buffer path of the gas control box, operating under a certain air pressure. This invention effectively replaces manual labor in the transport and transfer of numerous and varied radioactive samples in nuclear-related processes, preventing radiation damage to personnel during sample transport, reducing labor intensity, and improving overall process efficiency.

[0034] This invention utilizes a simple structure including a cylinder, piston rod, guide sleeve, and end-face sealing ring to enable timely and accurate sample delivery to the receiving end of the delivery pipeline, while simultaneously receiving samples sent through the delivery pipeline. Even with large sample volumes, rapid and efficient transfer is achieved. On one hand, it replaces manual labor, avoiding radiation damage to personnel during the transport of radioactive process samples. On the other hand, the simple structure enables efficient and accurate sample delivery in a radioactive environment, effectively ensuring stable production operations. Furthermore, the simple structure enhances the safety of inspection and maintenance.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic sample receiving and dispatching device for a pneumatic sample delivery system, characterized in that, The device includes a transceiver tube, which includes a lifting device. The lifting device has an air chamber inside, an air inlet on the air chamber, and an end face sealing ring on the top of the air chamber. The transceiver includes a cylinder, a piston rod is fixedly connected to the cylinder, the piston rod is fixed to the top of the cylinder, a pressure plate is fixedly connected to the top of the piston rod, and the end face sealing ring is embedded in the top end face of the pressure plate; the cylinder is fixed to the side of the guide sleeve. The air inlet is fixedly connected to the guide sleeve; the air inlet includes a main air inlet and a buffer air inlet, the main air inlet is connected to the main air delivery pipe of the air control box; the buffer air inlet is connected to the buffer air passage of the air control box and allows air to enter; the guide sleeve is fixedly connected to the mounting base by a snap fastener; a buffer pad is embedded in the top of the piston rod, and the pressure plate presses on the buffer pad.

2. The automatic sample receiving and dispatching device of the pneumatic sample delivery system according to claim 1, characterized in that, The piston rod is slidably connected to the guide sleeve via a sliding sleeve and a piston seal.

3. The automatic sample receiving and dispatching device of the pneumatic sample delivery system according to claim 2, characterized in that, The sliding sleeve is installed inside the guide sleeve, and the sliding sleeve is fixedly connected to the guide sleeve.

4. The automatic sample receiving and dispatching device of the pneumatic sample delivery system according to claim 3, characterized in that, The piston seal is embedded inside the guide sleeve.

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