Negative pressure reactor closed sampler

Abstract

This utility model relates to the field of sampling technology and provides a sealed sampler for a negative pressure reactor, comprising: a sampling tube disposed on the body of the negative pressure reactor for sampling materials inside the reactor body; a mounting shell fixedly installed at the bottom of the negative pressure reactor body, the mounting shell being connected to the sampling tube; a sampling block slidably installed within the mounting shell, the sampling block having a sampling groove for receiving materials entering the sampling tube; and a discharge pipe fixedly installed at the bottom of the mounting shell for discharging samples from the sampling groove. The sealed sampler for a negative pressure reactor provided by this utility model can perform sealed sampling within the negative pressure reactor body, effectively avoiding problems such as air backflow and contamination of materials, and ensuring sampling safety.

Description

Technical Field

[0001] This utility model relates to the field of sampling technology, and in particular to a closed sampler for a negative pressure reactor. Background Technology

[0002] A negative pressure reactor is a chemical reaction device that can create a negative pressure environment (i.e., a condition lower than the external atmospheric pressure) inside. It is widely used in chemical, pharmaceutical, food, cosmetic and other fields.

[0003] When using a negative pressure reactor to process certain materials, it is often necessary to sample the materials inside the reactor. Therefore, a corresponding sampler is required. However, some existing samplers often have poor sealing performance, which can cause outside air to be drawn back into the reactor, leading to material contamination and low sampling safety. A search revealed a patent document with authorization announcement number CN221173958U, which discloses a closed sampling device for a negative pressure reactor. However, this device, which uses manual pulling and rotating of a drive rod, can also easily cause outside air to be drawn back into the reactor, resulting in low sampling safety. Utility Model Content

[0004] To address the technical problem mentioned in the background art, where some existing samplers often have poor sealing performance, resulting in the backflow of outside air into the reactor and subsequent material contamination, thus leading to low sampling safety, this utility model provides a negative pressure reactor sealed sampler.

[0005] The negative pressure reactor sealed sampler provided by this utility model includes: a sampling tube disposed on the negative pressure reactor body for sampling materials inside the negative pressure reactor body; a mounting shell fixedly installed at the bottom of the negative pressure reactor body, the mounting shell being connected to the sampling tube; a sampling block slidably installed inside the mounting shell, the sampling block having a sampling groove for receiving materials entering the sampling tube; a discharge pipe fixedly installed at the bottom of the mounting shell for discharging samples from the sampling groove; and a transfer mechanism assembled on the mounting shell and the sampling block, the transfer mechanism being used to transfer the samples from the sampling groove to the discharge pipe for discharge.

[0006] Preferably, the transfer mechanism includes a moving mechanism and a rotating mechanism. The moving mechanism is used to drive the sample in the sampling slot to move laterally within the mounting housing. The rotating mechanism is used to drive the sampling slot to rotate. The moving mechanism includes: a mounting frame rotatably mounted on the mounting housing, on which a lead screw is rotatably mounted; a first servo motor fixedly mounted on the mounting frame, the output shaft of the first servo motor being connected to one end of the lead screw via a coupling; and a connecting frame threaded onto the lead screw, the connecting frame being fixedly connected to the sampling block.

[0007] Preferably, the rotating mechanism includes: a second servo motor fixedly mounted on the mounting housing; and a mounting shaft fixedly mounted on the mounting bracket, wherein the output shaft of the second servo motor is connected to one end of the mounting shaft via a coupling.

[0008] Preferably, a limiting rod is fixedly installed on the mounting bracket, and the limiting rod is slidably connected to the connecting bracket. The limiting rod is used to limit the movement of the connecting bracket.

[0009] Preferably, both the sampling tube and the discharge tube are rotatably mounted with a connecting shaft, and a stop block is fixedly sleeved on the connecting shaft.

[0010] Preferably, a purge valve is fixedly installed on the discharge tube, the purge valve is used to purge the inside of the discharge tube, and an exhaust valve is provided on the discharge tube, the exhaust valve is used to release the gas purged into the discharge tube.

[0011] Preferably, the sampling block is circular and contacts the inner wall of the mounting shell.

[0012] Compared with related technologies, the negative pressure reactor sealed sampler provided by this utility model has the following beneficial effects: This invention provides a sealed sampler for a negative pressure reactor: it can perform sealed sampling inside the negative pressure reactor, effectively avoiding problems such as air backflow and contamination of materials, and ensuring the safety of sampling. Attached Figure Description

[0013] Figure 1 A front view schematic diagram of a preferred embodiment of the negative pressure reactor sealed sampler provided by this utility model; Figure 2 This is a frontal sectional view of the present invention. Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure; Figure 4 for Figure 3 An enlarged structural diagram of part B shown in the figure; Figure 5 for Figure 3 The diagram shows an enlarged view of section C.

[0014] The following are the labels in the diagram: 1. Negative pressure reactor body; 2. Sampling tube; 3. Mounting shell; 4. Sampling block; 5. Sampling groove; 6. Mounting frame; 7. Lead screw; 8. First servo motor; 9. Connecting frame; 10. Second servo motor; 11. Mounting shaft; 12. Discharge tube; 13. Connecting shaft; 14. Stop block; 15. Purge valve; 16. Exhaust valve. Detailed Implementation

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification and the foregoing drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification or the foregoing drawings are used to distinguish different objects, not to describe a specific order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present 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, and therefore should not be construed as a limitation of the present invention.

[0016] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0017] This utility model embodiment provides a closed sampler for a negative pressure reactor, such as... Figure 1-5As shown, the closed sampler for a negative pressure reactor includes: a sampling tube 2 disposed on the negative pressure reactor body 1 for sampling materials inside the negative pressure reactor body 1; a mounting shell 3 fixedly installed at the bottom of the negative pressure reactor body 1, the mounting shell 3 being connected to the sampling tube 2; a sampling block 4 slidably installed inside the mounting shell 3, the sampling block 4 having a sampling groove 5 for receiving materials entering the sampling tube 2; a discharge pipe 12 fixedly installed at the bottom of the mounting shell 3 for discharging samples from the sampling groove 5; and a transfer mechanism assembled on the mounting shell 3 and the sampling block 4, the transfer mechanism being used to transfer the samples from the sampling groove 5 to the discharge pipe 12 for discharge.

[0018] In this embodiment, when sampling is required inside the negative pressure reactor body 1, the operator first opens the sampling tube 2. At this time, some material inside the negative pressure reactor body 1 enters the sampling tube 2 and then enters the sampling slot 5 on the sampling block 4. The operator then closes the sampling tube 2 and starts the transfer mechanism to move the sampling slot 5 above the discharge tube 12. The operator then opens the upper part of the discharge tube 12 and then rotates the sampling slot 5 to face downwards using the transfer mechanism, pouring the sample in the sampling slot 5 into the discharge tube 12. At this time, the sampling tube 2 is closed. The upper part of the discharge pipe 12 is used to prevent external air from entering the negative pressure reactor body 1, thereby preventing the material inside the negative pressure reactor body 1 from being contaminated and ensuring the safety of sampling. Then, the staff connects the corresponding sampling container to the bottom end of the discharge pipe 12, and then opens the lower part of the discharge pipe 12. The sample then enters the sampling container to complete the sampling. Through the entire sampler, the negative pressure reactor body 1 can be sampled in a sealed manner, effectively avoiding the problems of air backflow and contamination of materials, and ensuring the safety of sampling.

[0019] In a further preferred embodiment of this utility model, the transfer mechanism includes a moving mechanism and a rotating mechanism. The moving mechanism is used to drive the sample in the sampling slot 5 to move laterally within the mounting shell 3. The rotating mechanism is used to drive the sampling slot 5 to rotate. The moving mechanism includes: a mounting frame 6 rotatably mounted on the mounting shell 3, with a lead screw 7 rotatably mounted on the mounting frame 6; a first servo motor 8 fixedly mounted on the mounting frame 6, the output shaft of the first servo motor 8 being connected to one end of the lead screw 7 via a coupling; and a connecting frame 9 threadedly mounted on the lead screw 7, the connecting frame 9 being fixedly connected to the sampling block 4.

[0020] In this embodiment, after the sample enters the sampling slot 5 on the sampling block 4, the first servo motor 8 is started. The first servo motor 8 drives the lead screw 7 to rotate. Under the limiting action of the limiting rod on the connecting frame 9, the connecting frame 9 and the sampling block 4 are moved, thereby driving the sampling slot 5 to move laterally within the mounting shell 3, thus moving the sampling slot 5 above the discharge tube 12. At this time, the upper part of the discharge tube 12 is opened first, and then the sampling slot 5 is rotated to face downwards by the rotating mechanism, and the sample in the sampling slot 5 is poured into the discharge tube 12. At this time, the upper part of the discharge tube 12 is closed, thereby preventing external air from entering the negative pressure reactor body 1. Then, the operator connects the corresponding sampling container to the bottom end of the discharge tube 12, and then opens the lower part of the discharge tube 12. The sample then enters the sampling container, completing the sampling. The whole process is well sealed, effectively preventing external air from being drawn back and contaminating the materials inside the reactor.

[0021] In a further preferred embodiment of the present invention, the rotating mechanism includes: a second servo motor 10 fixedly mounted on the mounting housing 3; and a mounting shaft 11 fixedly mounted on the mounting bracket 6, wherein the output shaft of the second servo motor 10 is connected to one end of the mounting shaft 11 via a coupling.

[0022] In this embodiment, after the sampling trough 5 is moved above the discharge tube 12, the second servo motor 10 is started. The output shaft of the second servo motor 10 drives the mounting shaft 11 to rotate through the coupling, which in turn drives the mounting frame 6 and the sampling block 4 to rotate, so that the sampling trough 5 can rotate accordingly. The sampling trough 5 is rotated so that the opening faces downward, and the sample in the sampling trough 5 is poured into the discharge tube 12. The whole process is completed in a closed environment, which effectively avoids the backflow of outside air into the negative pressure reactor, prevents the material from being contaminated, and significantly improves the safety and quality of sampling.

[0023] In a further preferred embodiment of this utility model, a limiting rod is fixedly installed on the mounting bracket 6, and the limiting rod and the connecting bracket 9 are slidably connected. The limiting rod is used to limit the connecting bracket 9.

[0024] In this embodiment, the connecting frame 9 is limited by the limiting rod, so that the lead screw 7 can stably drive the connecting frame 9 to move.

[0025] In a further preferred embodiment of the present invention, a connecting shaft 13 is rotatably mounted on both the sampling tube 2 and the discharge tube 12, and a stop block 14 is fixedly sleeved on the connecting shaft 13.

[0026] In this embodiment, multiple connecting shafts 13 are respectively installed on the sampling tube 2 and the discharge tube 12 via damping rotating shafts. Through the cooperation of the connecting shafts 13 and the stop block 14, the sampling tube 2 and the discharge tube 12 can be blocked, thereby facilitating the blocking of the sampling tube 2 and the discharge tube 12 according to the actual operation.

[0027] In a further preferred embodiment of the present invention, a purge valve 15 is fixedly installed on the discharge tube 12, the purge valve 15 is used to purge the discharge tube 12, and an exhaust valve 16 is provided on the discharge tube 12, the exhaust valve 16 is used to discharge the gas purged in the discharge tube 12.

[0028] In this embodiment, after a sampling is completed, the upper and lower parts of the discharge tube 12 are closed, and the purge valve 15 and the corresponding purge device are connected. Through the cooperation of the purge device and the purge valve 15, inert gas is blown into the discharge tube 12. At the same time, the exhaust valve 16 is opened. The exhaust valve 16 and the corresponding gas collection pipe can be connected according to the actual situation. The purged inert gas is discharged through the exhaust valve 16, thereby avoiding the residual air on the outer wall of the discharge tube 12 and ensuring the safety of the next sampling.

[0029] In a further preferred embodiment of this utility model, the sampling block 4 is circular and the sampling block 4 is in contact with the inner wall of the mounting shell 3.

[0030] In this embodiment, the sampling block 4 is circular and contacts the inner wall of the mounting shell 3, which facilitates the rotation of the sampling block 4 within the mounting shell 3.

[0031] In summary, compared with related technologies, the entire sampler can perform sealed sampling inside the negative pressure reactor body 1, effectively avoiding problems such as air backflow and contamination of materials, and ensuring the safety of sampling.

[0032] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A sealed sampler for a negative pressure reactor, characterized in that, include: A sampling tube installed on the body of the negative pressure reactor for sampling materials inside the negative pressure reactor body; A mounting shell is fixedly installed at the bottom of the negative pressure reactor body, and the mounting shell is connected to the sampling tube; A sampling block is slidably installed inside the mounting housing. The sampling block has a sampling groove, which is used to receive the material entering the sampling tube. A sample discharge tube is fixedly installed at the bottom of the mounting shell for discharging samples from the sampling slot; A transfer mechanism is assembled on the mounting shell and the sampling block, which is used to transfer the sample from the sampling slot to the discharge tube for discharge.

2. The sealed sampler for a negative pressure reactor according to claim 1, characterized in that, The transfer mechanism includes a moving mechanism and a rotating mechanism. The moving mechanism is used to move the sample in the sampling slot laterally within the mounting housing. The rotating mechanism is used to rotate the sampling slot. The moving mechanism includes: A mounting bracket is rotatably mounted on the mounting housing, and a lead screw is rotatably mounted on the mounting bracket; A first servo motor is fixedly mounted on the mounting bracket, and the output shaft of the first servo motor is connected to one end of the lead screw via a coupling; A connecting bracket threaded onto the lead screw, the connecting bracket and the sampling block being fixedly connected.

3. The sealed sampler for a negative pressure reactor according to claim 2, characterized in that, The rotating mechanism includes: A second servo motor is fixedly mounted on the mounting housing; A mounting shaft is fixedly installed on the mounting bracket, and the output shaft of the second servo motor is connected to one end of the mounting shaft via a coupling.

4. The sealed sampler for a negative pressure reactor according to claim 3, characterized in that, A limiting rod is fixedly installed on the mounting bracket, and the limiting rod is slidably connected to the connecting bracket. The limiting rod is used to limit the movement of the connecting bracket.

5. The sealed sampler for a negative pressure reactor according to claim 1, characterized in that, Both the sampling tube and the discharge tube are rotatably mounted with connecting shafts, and a stop block is fixedly sleeved on the connecting shaft.

6. The sealed sampler for a negative pressure reactor according to claim 1, characterized in that, A purge valve is fixedly installed on the discharge tube, which is used to purge the inside of the discharge tube. An exhaust valve is also provided on the discharge tube, which is used to release the gas purged from the discharge tube.

7. The sealed sampler for a negative pressure reactor according to claim 1, characterized in that, The sampling block is circular and is in contact with the inner wall of the mounting shell.

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