Multi-sample storage device of pneumatic conveying system

Abstract

The invention discloses a multi-sample storage device of a pneumatic conveying system. The multi-sample storage device solves the problems that an existing irradiated sample box storage device cannot automatically store a plurality of irradiated sample boxes at the same time, and specific samples can not be taken out according to actual requirements. Comprising a lead tank, a containing cavity is formed in the lead tank, a storage shell is arranged, and a fixing support is located in the storage shell. The output end of the rotation driving mechanism is connected to the fixing support and can drive the fixing support to rotate. The storage barrels are arranged on the fixing support around the rotating axis of the fixing support in a circular array mode. The distance between the axis of the sample injection channel and the axis of the fixing support is equal to the distance between the axis of each storage cylinder and the rotation axis of the fixing support. The multi-sample storage device can store a plurality of sample boxes and can prevent radiation leakage.

Description

Technical Field

[0001] The invention relates to an irradiated sample box storage device, in particular to a multi-sample storage device of a pneumatic conveying system. Background Art

[0002] Irradiation technology uses ionizing radiation sources such as radioactive isotopes, electron beams, gamma rays, neutrons, etc. produced by reactors or accelerators to irradiate matter, causing ionization, excitation and other effects, thereby changing the physical, chemical or biological properties of the matter.

[0003] In the field of nuclear radiation detection and measurement technology, it is usually necessary to carry out technical processes such as sample irradiation, cooling, and measurement. The sample box containing the sample is transported to the reactor by a pneumatic conveying system. After the sample is irradiated by the reactor, the temperature of the sample rises and it has a high radioactivity. It needs to be stored and cooled for a certain period of time before the sample can be measured. And usually multiple samples are irradiated and stored continuously, and sometimes specific samples need to be taken out according to actual needs. However, the existing irradiated sample box storage equipment has the problem of not being able to meet the automatic storage of multiple irradiated sample boxes at the same time, and taking out specific sample boxes according to actual needs. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the existing irradiated sample box storage equipment cannot meet the requirements of automatic storage of multiple radioactive samples at the same time and can take out specific sample boxes according to actual needs, and to provide a pneumatic conveying system multi-sample storage.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A multi-sample storage device for a pneumatic conveying system is special in that it comprises: a frame, a conveying pipeline, a buffer gas pipeline and an in-place detection mechanism;

[0007] The frame is fixedly connected to a rotary drive mechanism, and the frame is also fixedly connected to a lead tank, a storage shell is arranged in the lead tank, an output end of the rotary drive mechanism extends into the storage shell, and is connected to a fixed bracket, a plurality of vertically arranged storage tubes are evenly connected in the circumferential direction in the fixed bracket, and the upper end surface and the lower end surface of the storage tube are respectively arranged flush with the upper side wall and the lower side wall of the storage shell; the irradiated sample box is placed in the storage tube, and then the storage tube is placed in the storage shell, which can play a sealing role, and then the storage tube is placed in the lead tank, which can effectively avoid the radiation leakage of the radioactive sample in the sample box;

[0008] The conveying pipeline is sequentially connected to the top of the lead tank and connected to the storage shell, which can ensure that the top of the storage cylinder is connected to the conveying pipeline during the rotation of the storage cylinder;

[0009] The buffer gas pipeline is sequentially connected to the bottom surface of the lead tank and connected to the bottom surface of the storage shell; the delivery pipeline and the buffer gas pipeline are arranged opposite to each other in the vertical direction;

[0010] The distance between the central axis of the delivery pipeline and the central axis of the fixed bracket is equal to the distance between the central axis of each storage cylinder and the central axis of the fixed bracket, which can ensure that the delivery pipeline, the storage cylinder, and the buffer gas pipeline are connected in sequence;

[0011] One end of the in-place detection mechanism is fixedly connected to the outer wall of the lead tank, and the other end extends into the storage shell and is coaxially connected to the fixed bracket. The in-place detection mechanism can detect whether the conveying pipeline, storage cylinder, and buffer gas pipeline are connected to facilitate taking or placing the sample box.

[0012] Further, the lead tank comprises a lead tank shell and a lead cover, the lead tank shell and the lead cover are connected to form a receiving cavity, the storage shell is arranged in the receiving cavity, the lead cover is provided with an injection channel and a detection channel, the bottom of the lead tank shell is provided with a buffer channel and a transmission channel, and the injection channel, the detection channel, the buffer channel and the transmission channel are all communicated with the receiving cavity;

[0013] The upper outer wall of the lead cover is connected to one end of the position detection mechanism;

[0014] The bottom of the outer wall of the lead tank shell is connected to the frame;

[0015] A delivery pipeline is arranged in the injection channel;

[0016] A buffer gas pipeline is arranged in the buffer channel;

[0017] The other end of the in-place detection mechanism extends through the detection channel into the storage shell;

[0018] The output end of the rotary drive mechanism extends through the transmission channel into the storage housing;

[0019] The buffer channel and the injection channel are arranged opposite to each other in the vertical direction.

[0020] Furthermore, the storage shell is provided with an injection hole and a buffer gas hole, the injection hole corresponds to the injection channel, the buffer gas hole corresponds to the buffer channel, a buffer gas pipeline is arranged in the injection hole, and a delivery pipeline is arranged in the buffer gas hole.

[0021] Further, the fixed bracket includes a first rotating disk, a second rotating disk and a supporting member;

[0022] The first rotating disk is coaxially arranged with the second rotating disk;

[0023] The support member is fixedly connected to the first turntable and the second turntable via flanges respectively;

[0024] The bottom end of the support member is fixedly connected to the output end of the rotation drive mechanism, and the top end is fixedly connected to the other end of the in-position detection mechanism;

[0025] The first turntable is provided with a plurality of first mounting holes, the second turntable is provided with a plurality of second mounting holes at positions relative to the first mounting holes, and both ends of each storage cylinder are respectively connected to a first mounting hole on the first turntable and a corresponding second mounting hole on the second turntable.

[0026] Furthermore, the rotary drive mechanism includes a servo motor, a reducer, a transmission shaft and a support cylinder;

[0027] The servo motor and the reducer are fixedly connected on the frame, the output shaft of the servo motor is connected to the input end of the reducer, the output end of the reducer is connected to one end of the transmission shaft, the outer wall of the transmission shaft is connected to the inner wall of the support tube through a bearing, the outer wall of the support tube is fixedly connected to the transmission channel of the lead tank, and the other end of the transmission shaft is fixedly connected to the bottom end of the support.

[0028] Furthermore, the rotary drive mechanism includes a stepper motor, a rotating shaft and a supporting cylinder, the stepper motor is fixedly connected to the frame, the output shaft of the stepper motor is fixedly connected to one end of the transmission shaft, the outer wall of the transmission shaft is connected to the inner wall of the supporting cylinder through a bearing, the outer wall of the supporting cylinder is fixedly connected to the transmission channel of the lead tank, and the other end of the transmission shaft extends to the bottom end of the fixedly connected support member in the lead tank.

[0029] Further, each of the storage cylinders comprises a first flange, a second flange and a cylinder body;

[0030] The two ends of the cylinder are respectively fixedly connected to the first flange and the second flange. One end of the cylinder is connected to the first mounting hole of the first turntable through the first flange, and the other end is connected to the second mounting hole of the second turntable through the second flange.

[0031] Furthermore, the top and bottom ends of each storage tube are respectively connected to a sealing ring, and each sealing ring is tightly connected to the storage shell to form a dynamic seal between the storage tube and the storage shell.

[0032] Furthermore, the in-place detection mechanism includes a connecting rod, a detection plate, an in-place detection sensor and a bracket;

[0033] The position detection sensor comprises a signal transmitting unit and a signal receiving unit; the signal transmitting unit and the signal receiving unit are connected to the bracket respectively, the bracket is fixedly connected to the outer wall of the lead tank, the connecting rod is connected to the lead tank through a bearing, one end of the connecting rod located outside the lead tank is connected to the detection disk, and the other end is coaxially fixedly connected to the fixed bracket, and the detection disk is located between the signal transmitting unit and the signal receiving unit of the position detection sensor;

[0034] The detection plate is provided with a plurality of detection through holes. When each detection through hole is located between the signal transmitting unit and the signal receiving unit, a storage cylinder is opposite to the delivery pipeline and the buffer gas pipeline.

[0035] Furthermore, the conveying pipeline is located outside the lead tank and is connected to a vacuum pipeline and a beam sensor, and the vacuum pipeline is arranged close to the lead tank.

[0036] Beneficial effects of the present invention:

[0037] 1. The pneumatic conveying system multi-sample storage of the present invention is surrounded by a lead can on the outside, which can effectively prevent the radiation leakage of the radioactive samples in the sample box.

[0038] 2. The present invention provides a pneumatic conveying system multi-sample storage device, which conveys the sample box through a conveying pipeline and a lead tank to a storage cylinder in a storage shell, drives the storage cylinder to rotate through a rotary drive mechanism, and seals both ends of the storage cylinder to facilitate the storage of irradiated sample boxes.

[0039] 3. In the multi-sample storage device of the pneumatic conveying system of the present invention, an in-place detection mechanism is provided to facilitate accurate conveyance of the irradiated sample boxes into the storage tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a three-dimensional structural schematic diagram of a first embodiment of a multi-sample storage device of a pneumatic conveying system of the present invention;

[0041] Figure 2 It is a left side view of a first embodiment of a multi-sample storage device for a pneumatic conveying system of the present invention;

[0042] Figure 3 for Figure 2 Sectional view of the AA plane;

[0043] Figure 4 This is a schematic diagram of the structure of the containing cavity in the first embodiment of a multi-sample storage device of a pneumatic conveying system of the present invention;

[0044] Figure 5 It is a cross-sectional view of a lead tank in Embodiment 1 of a multi-sample storage device of a pneumatic conveying system of the present invention.

[0045] In the figure, 1-lead tank; 101-accommodating cavity; 102-injection channel; 103-buffer channel; 104-transmission channel; 105-detection channel; 106-lead tank shell; 107-lead cover; 2-fixed bracket; 201-first turntable; 202-second turntable; 203-support; 3-rotation drive mechanism; 301-servo motor; 302-reducer; 303-transmission shaft; 304-support cylinder; 4-storage cylinder; 401-first flange; 402-second flange; 403-cylinder; 5-storage shell; 6-sealing ring; 7-in-place detection mechanism; 701-connecting rod; 702-detection disk; 703-in-place detection sensor; 704-bracket; 8-counter-type sensor; 9-frame; 10-buffer gas pipeline; 11-delivery pipeline; 12-vacuum pipeline. DETAILED DESCRIPTION

[0046] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] Embodiment 1

[0048] This embodiment is a pneumatic conveying system multi-sample storage device, such as Figures 1 to 5 As shown, it includes a lead tank 1, a fixed bracket 2, a driving mechanism 3, a plurality of storage cylinders 4, a storage shell 5, a sealing ring 6, an in-place detection mechanism 7, a through-beam sensor 8, a frame 9, a buffer gas pipeline 10, a conveying pipeline 11 and a vacuum pipeline 12.

[0049] like Figure 3 As shown, a receiving cavity 101 is formed inside the lead tank 1, and a sample introduction channel 102 is provided which is connected to the receiving cavity 101. The fixed bracket 2 is located in the storage shell 5, and the storage shell 5 is located in the receiving cavity 101. The output end of the rotary drive mechanism 3 is connected to the fixed bracket 2, and can drive the fixed bracket 2 to rotate. A plurality of storage cylinders 4 are arranged in a circular array on the fixed bracket 2 around the central rotation axis of the fixed bracket 2.

[0050] Among them, the distance between the central axis of the injection channel 102 and the central axis of the fixed bracket 2 is equal to the distance between the central axis of each storage tube 4 and the central axis of the fixed bracket 2, and then the central axis of the storage tube 4 can be made to coincide with the central axis of the injection channel 102 by rotation, so that the storage tube 4 is aligned with the injection channel 102.

[0051] In this embodiment, eight storage tubes 4 are included, and the angle between two adjacent storage tubes 4 is 45°. The multi-sample storage device may also include other numbers of storage tubes 4, such as six or ten.

[0052] When the multi-sample storage device of this embodiment is in operation, the rotary drive mechanism 3 drives the fixed support 2 to rotate, so that an empty storage tube 4 on the fixed support 2 is aligned with the injection channel 102 and the injection through hole on the storage shell 5, and the irradiated sample box moves in the delivery pipeline 11, and finally passes through the injection channel 102 and enters the storage tube 4 aligned with the injection channel 102. When there is an irradiated sample box that needs to be stored again, the rotary drive mechanism 3 drives the fixed support 2 to rotate, so that another storage tube 4 on the fixed support 2 is aligned with the injection channel 11, and the sample box transported from the injection channel 11 enters the storage tube 4. The sample box in the multi-sample storage device is surrounded by the lead can 1, which can prevent radiation leakage.

[0053] Therefore, the multi-sample storage device provided in this embodiment can store irradiated sample boxes, and when a specific sample box needs to be taken out, the rotating drive mechanism 3 drives the fixed bracket 2 to rotate so that the storage tube 4 where the selected sample box is located is aligned with the conveying pipeline 11. The sample box is conveyed to the conveying pipeline 11 and is conveyed to a specific position under the action of the gas conveyed into the storage tube 4 by the buffer gas pipeline 10 and the negative pressure of the vacuum pipeline 12.

[0054] This embodiment provides a specific structure of the fixing bracket 2, such as Figure 4 As shown, the fixed bracket 2 includes a first rotating disk 201, a second rotating disk 202 and a supporting member 203. The first rotating disk 201 is arranged in parallel with the second rotating disk 202, and the first rotating disk 201 is provided with a plurality of first mounting holes, and the second rotating disk 202 is provided with a plurality of second mounting holes corresponding to the plurality of first mounting holes. The two ends of the supporting member are respectively connected to the first rotating disk 201 and the second rotating disk 202, and the supporting member 203 is connected to the output end of the rotating driving mechanism 3. The two ends of each storage barrel 4 respectively pass through the correspondingly arranged first mounting hole and the second mounting hole, and each storage barrel 4 is connected to the first rotating disk 201 and / or the second rotating disk 202.

[0055] like Figure 4 As shown, the first turntable 201 is located above the second turntable 202, the first mounting hole is used to fix the upper end of the storage cylinder 4, the second mounting hole is used to fix the lower end of the storage cylinder 4, and the upper end of the storage cylinder 4 is used to align with the injection channel 102; the first turntable 201 is provided with eight first mounting holes, and the second turntable 202 is provided with eight second mounting holes, and the eight first mounting holes correspond to the eight second mounting holes one by one.

[0056] Specifically, the outer side of the support member 203 has two flanges, the two flanges are respectively close to the two ends of the support member 203, and the bolts pass through one of the flanges to connect with the first rotating disk 201, and the bolts pass through the other flange to connect with the second rotating disk 202. Alternatively, the two ends of the support member 203 are welded to the first rotating disk 201 and the second rotating disk 202, respectively.

[0057] When the sample box needs to be stored, the output end of the rotary drive mechanism 3 drives the support member 203 to rotate, and the two ends of the support member 203 respectively drive the first turntable 201 and the second turntable 202 to rotate, and the plurality of storage tubes 4 rotate along with the first turntable 201 and the second turntable 202. After the first turntable 201 and the second turntable 202 rotate to a preset angle, the selected storage tube 4 is aligned with the injection channel 102.

[0058] Continue to refer to Figure 4 The storage cylinder 4 includes a cylinder body 403, a first flange 401 and a second flange 402. The two ends of the cylinder body 403 pass through the first mounting hole and the second mounting hole respectively. The first flange 401 and the second flange 402 are both arranged on the outer circumferential surface of the cylinder body 403, and the first flange 401 and the second flange 402 are respectively close to the two ends of the cylinder body 403. The first flange 401 abuts against the first mounting hole of the first rotating disk 201, and the second flange 402 is connected to the second mounting hole of the second rotating disk 202.

[0059] The storage cylinder 4 is an integrated structure, and the first flange 401 and the second flange 402 are integrally connected to the outer circumferential surface of the cylinder body 403. Alternatively, the first flange 401 and the second flange 402 can also be connected to the outer circumferential surface of the cylinder body 403 by welding.

[0060] In this embodiment, the structure of the storage tube 4 enables the storage tube 4 to be quickly installed on the fixed bracket 2. Specifically, when installing the storage tube 4 on the fixed bracket 2, the two ends of each storage tube 4 are respectively extended into the corresponding first installation hole and the second installation hole, and then the two ends of the support member 203 are respectively connected to the first rotating disk 201 and the second rotating disk 202, so that the first flange 401 abuts against the first rotating disk 201, and the second flange 402 abuts against the second rotating disk 202.

[0061] like Figure 4 As shown, the multi-sample storage device provided in this embodiment further includes a storage shell 5 and a sealing ring 6. The storage shell 5 is located in the accommodating cavity 101 and surrounds the fixed bracket 2, and is provided with a sampling through hole aligned with the sampling channel 102. The outer sides of the ends of the plurality of storage barrels 4 passing through the first rotating disk 201 and the second rotating disk 202 are all sleeved with sealing rings 6, and the sealing rings 6 are closely attached to the storage shell 5, and the sealing rings 6 rotate with the storage barrels 4, so as to realize dynamic sealing with the storage shell 5.

[0062] The fixed support 2 is located in the storage shell 5, and it is required that the two end surfaces of the storage tube 4 have gaps with the inner top surface and the inner bottom surface of the storage shell 5, so that when the rotation drive mechanism 3 drives the fixed support 2 to rotate, the multiple storage tubes 4 can rotate in the storage shell 5. For the storage tube 4 that is not aligned with the injection channel 102, the sealing ring 6 can seal the two ports of the storage tube 4 with the inner top surface and the inner bottom surface of the storage shell 5, respectively, to reduce the leakage of radiation carried by the sample in the storage tube 4.

[0063] In this embodiment, the sealing ring 6 is made of polytetrafluoroethylene.

[0064] This embodiment provides a specific structure of the rotation drive mechanism 3, such as Figure 3 As shown. The rotary drive mechanism 3 includes a servo motor 301, a reducer 302 and a transmission shaft 303. The servo motor 301 and the reducer 302 are located outside the lead tank 1, and the rotating shaft of the servo motor 301 is connected to the input end of the reducer 302. The lead tank 1 is provided with a transmission channel 104 connected to the accommodating cavity 101. The output end of the transmission shaft 303 passes through the transmission channel 104, the storage shell 5 and is connected to the fixed bracket 2, and the other end of the transmission shaft 303 is connected to the output end of the reducer 302.

[0065] When the fixed bracket 2 needs to be rotated, the servo motor 301 is controlled to rotate, and the output end of the servo motor 301 drives the input end of the reducer 302. The speed is reduced by the reducer 302, and the output end of the reducer 302 drives the transmission shaft 303 to rotate, and the fixed bracket 2 connected to the transmission shaft 303 rotates accordingly.

[0066] The speed reducer 302 is mounted on the outer side of the lead tank 1 , and the servo motor 301 is mounted on the speed reducer 302 .

[0067] This embodiment also provides a support cylinder 304, which is installed in the transmission channel 104; the transmission shaft 303 is supported on the inner wall of the support cylinder 304 through a bearing, so that the transmission shaft 303 rotates in the bearing driven by the output end of the reducer 302.

[0068] like Figure 3 and Figure 5 As shown, the lead tank 1 is provided with a buffer channel 103, the central axis of the buffer channel 103 coincides with the central axis of the injection channel 102; the buffer channel 103 and the injection channel 102 are respectively located outside the two ends of the storage tube 4. The multi-sample storage device also includes a buffer gas pipeline 10, one end of which passes through the buffer channel 103, and the other end of the buffer gas pipeline 10 is tapered.

[0069] When the sample box begins to enter the storage tube 4, the air in the storage tube 4 is gradually discharged through the buffer channel 103 and the buffer gas pipeline 10, and because the end of the buffer gas pipeline 10 away from the lead tank 1 is tapered, the air in the storage tube 4 is discharged slowly, so that the sample box can slowly descend in the storage tube 4, thereby protecting the sample loaded in the sample box.

[0070] like Figure 1 and Figure 3 As shown, in this embodiment, it also includes an in-place detection mechanism 7, which is connected to the fixed bracket 2. The in-place detection mechanism 7 can detect whether the storage tube 4 is aligned with the injection channel 102, and transmit the detection signal to the rotation drive mechanism 3. The rotation drive mechanism 3 determines to drive the fixed bracket 2 to rotate or stop driving the fixed bracket 2 to rotate according to the detection signal of the in-place detection mechanism 7.

[0071] Reference Figure 1 and Figure 3 The in-place detection mechanism 7 includes a connecting rod 701, a detection disk 702 and an in-place detection sensor 703, and the in-place detection sensor 703 includes a signal transmitting unit and a signal receiving unit.

[0072] The lead tank 1 is provided with a detection channel 105 connected to the receiving cavity 101, one end of the connecting rod 701 passes through the detection channel 105 and is connected to the fixing bracket 2, and the other end of the connecting rod 701 is connected to the detection disk 702. The signal transmitting unit and the signal receiving unit are respectively located on both sides of the detection disk 702.

[0073] Among them, the detection disk 702 is provided with a plurality of detection through holes, and the plurality of detection through holes are arrayed around the rotation axis of the fixed bracket 2, and the number of the plurality of detection through holes is the same as the number of the plurality of storage tubes 4; when one of the detection through holes is aligned with the signal transmitting unit and the signal receiving unit, and one of the storage tubes 4 is aligned with the injection through hole, the sample box in the injection through hole is placed into the storage tube 4. When the rotary drive mechanism 3 drives the fixed bracket 2 to rotate, the fixed bracket 2 drives the detection disk 702 to rotate through the connecting rod 701, so that the signal transmitting unit and the signal receiving unit located on both sides of the detection disk 702 can detect the detection through holes on the detection disk 702. Each detection through hole can make the injection through hole correspond to a storage tube 4, and when one of the detection through holes is detected, the storage tube 4 corresponding to the detection through hole is aligned with the injection through hole. The fixed bracket 2 is Figure 4 In the structure shown, the end of the connecting rod 701 is fixedly connected to the support member 203 and can rotate with the support member 203.

[0074] In addition, the in-place detection mechanism 7 further includes a bracket 704 . The bracket 704 is disposed on the outer side of the lead tank 1 , and the signal transmitting unit and the signal receiving unit are connected to the bracket 704 .

[0075] In this embodiment, the signal transmitting unit, the signal receiving unit, and the servo motor 301 are connected to the controller before use, and the servo motor 301 can be automatically controlled to rotate according to the detected signal.

[0076] This embodiment provides a specific structure of the lead tank 1, referring to Figure 5 The lead tank 1 comprises a lead tank shell 106 and a lead cover 107. The lead tank shell 106 has a receiving groove; the lead cover 107 covers the top of the lead tank shell 106 to form a receiving cavity 101.

[0077] The multi-sample storage device provided in this embodiment further includes a frame 9; the lead tank 1 is arranged on the top of the frame 9. The frame 9 is used to be placed on the ground, providing an installation foundation for the lead tank 1. Specifically, the lead tank 1 is connected to the top of the frame 9 by bolts.

[0078] The multi-sample storage device provided in this embodiment also includes a delivery pipeline 11 and a vacuum pipeline 12; one end of the delivery pipeline 11 passes through the injection channel 102; one end of the vacuum pipeline 12 is connected to the delivery pipeline 11, and the connection between the vacuum pipeline 12 and the delivery pipeline 11 is close to the lead tank 1.

[0079] When the sample box needs to be transported to the multi-sample storage for storage, the vacuum line 12 is sucked to form a negative pressure in the pipeline between the sample box and the lead tank 1 in the transport line 11, and the sample box in the transport line 11 moves to the injection channel 102 in the transport line 11, and then the sample box falls into the storage tube 4 under the action of gravity. When the sample box needs to be taken out of the multi-sample storage, the end of the transport line 11 away from the lead tank 1 is sucked to form a negative pressure at the end of the transport line 11 away from the lead tank 1, and the sample box in the storage tube 4 aligned with the injection channel 102 enters the transport line 11 and moves along the transport line 11.

[0080] The multi-sample storage device provided in this embodiment further includes two opposing beam sensors 8 , which are installed in the delivery pipeline 11 and are used to detect whether the sample box enters the lead tank 1 or is taken out of the lead tank 1 .

[0081] Embodiment 2

[0082] Different from the first embodiment, in this embodiment, the rotating drive mechanism 3 includes a stepper motor, a rotating shaft 303 and a supporting cylinder 304. The stepper motor is fixedly connected to the frame 9, and the output shaft of the stepper motor is fixedly connected to one end of the transmission shaft 303. The outer wall of the transmission shaft 303 is connected to the inner wall of the supporting cylinder 304 through a bearing. The outer wall of the supporting cylinder 304 is fixedly connected to the transmission channel 104 of the lead tank 1, and the other end of the transmission shaft 303 extends to the bottom end of the fixedly connected support member 203 in the lead tank 1.

[0083] The above description is only a specific embodiment of the present invention, and a comparison of the effects of the specific embodiments and the related comparative examples, but the protection scope of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A multi-sample storage device for a pneumatic conveying system, characterized in that: include: A frame (9), a delivery pipeline (11), a buffer gas pipeline (10), and an in-place detection mechanism (7); The frame (9) is fixedly connected to a rotary drive mechanism (3), and the frame (9) is also fixedly connected to a lead tank (1), a storage shell (5) is arranged in the lead tank (1), an output end of the rotary drive mechanism (3) extends into the storage shell (5), and is connected to a fixed bracket (2), and a plurality of vertically arranged storage cylinders (4) are evenly connected in the circumferential direction in the fixed bracket (2); the upper end surface and the lower end surface of the storage cylinder (4) are respectively arranged flush with the upper side wall and the lower side wall of the storage shell (5); The delivery pipeline (11) is sequentially connected to the top of the lead tank (1) and connected to the top of the storage shell (5); The buffer gas pipeline (10) sequentially penetrates the bottom surface of the lead tank (1) and the bottom surface of the storage shell (5); the delivery pipeline (11) and the buffer gas pipeline (10) are arranged opposite to each other in the vertical direction; The distance between the central axis of the delivery pipeline (11) and the central axis of the fixed bracket (2) is equal to the distance between the central axis of each storage cylinder (4) and the central axis of the fixed bracket (2); One end of the in-place detection mechanism (7) is fixedly connected to the outer wall of the lead tank (1), and the other end extends into the storage shell (5) and is coaxially connected to the fixed bracket (2).

2. The pneumatic conveying system multi-sample storage device according to claim 1, characterized in that: The lead tank (1) comprises a lead tank shell (106) and a lead cover (107), wherein the lead tank shell (106) and the lead cover (107) are connected to form a receiving cavity (101), wherein the storage shell (5) is arranged in the receiving cavity (101), wherein an injection channel (102) and a detection channel (105) are provided on the lead cover (107), and wherein a buffer channel (103) and a transmission channel (104) are provided below the lead tank shell (106), wherein the injection channel (102), the detection channel (105), the buffer channel (103) and the transmission channel (104) are all in communication with the receiving cavity (101); The upper outer wall of the lead cover (107) is connected to one end of the position detection mechanism (7); The bottom of the outer wall of the lead tank shell (106) is connected to the frame (9); The delivery pipeline (11) is arranged in the injection channel (102); The buffer gas pipeline (10) is arranged in the buffer channel (103); The other end of the in-place detection mechanism (7) passes through the detection channel (105) and extends into the storage shell (5); The output end of the rotary drive mechanism (3) extends through the transmission channel (104) into the storage shell (5); The buffer channel (103) and the injection channel (102) are arranged opposite to each other in a vertical direction.

3. The pneumatic conveying system multi-sample storage device according to claim 2, characterized in that: The storage shell (5) is provided with a sample injection through hole and a buffer gas through hole, the sample injection through hole corresponds to the sample injection channel (102), the buffer gas through hole corresponds to the buffer channel (103), the buffer gas pipeline (10) is arranged in the sample injection through hole, and the delivery pipeline (11) is arranged in the buffer gas through hole.

4. The pneumatic conveying system multi-sample storage device according to claim 2, characterized in that: The fixed support (2) comprises a first rotating disk (201), a second rotating disk (202) and a supporting member (203); The first rotating disk (201) and the second rotating disk (202) are coaxially arranged; The support member (203) is fixedly connected to the first rotating disk (201) and the second rotating disk (202) via flanges respectively; The bottom end of the support member (203) is fixedly connected to the output end of the rotation drive mechanism (3), and the top end is fixedly connected to the other end of the in-position detection mechanism (7); The first rotating disk (201) is provided with a plurality of first mounting holes, and the second rotating disk (202) is provided with a plurality of second mounting holes at positions opposite to the first mounting holes, and two ends of each storage cylinder (4) are respectively connected to a first mounting hole on the first rotating disk (201) and a corresponding second mounting hole on the second rotating disk (202).

5. A pneumatic conveying system multi-sample storage device according to claim 4, characterized in that: The rotary drive mechanism (3) comprises a servo motor (301), a reducer (302), a transmission shaft (303) and a support cylinder (304); The servo motor (301) and the reducer (302) are fixedly connected to the frame (9); the output shaft of the servo motor (301) is connected to the input end of the reducer (302); the output end of the reducer (302) is connected to one end of a transmission shaft (303); the outer wall of the transmission shaft (303) is connected to the inner wall of a support tube (304) via a bearing; the outer wall of the support tube (304) is fixedly connected to the transmission channel (104) of the lead tank (1); the other end of the transmission shaft (303) is fixedly connected to the bottom end of the support member (203).

6. The pneumatic conveying system multi-sample storage device according to claim 4, characterized in that: The rotary drive mechanism (3) comprises a stepper motor, a rotating shaft (303) and a supporting cylinder (304); the stepper motor is fixedly connected to the frame (9); the output shaft of the stepper motor is fixedly connected to one end of the transmission shaft (303); the outer wall of the transmission shaft (303) is connected to the inner wall of the supporting cylinder (304) via a bearing; the outer wall of the supporting cylinder (304) is fixedly connected to the transmission channel (104) of the lead pot (1); the other end of the transmission shaft (303) extends to the bottom end of the fixedly connected support member (203) in the lead pot (1).

7. The pneumatic conveying system multi-sample storage device according to claim 4, characterized in that: Each storage cylinder (4) comprises a first flange (401), a second flange (402) and a cylinder body (403); The two ends of the cylinder (403) are respectively fixedly connected to the first flange (401) and the second flange (402); one end of the cylinder (403) is connected to the first mounting hole of the first turntable (201) through the first flange (401), and the other end is connected to the second mounting hole of the second turntable (202) through the second flange (402).

8. The pneumatic conveying system multi-sample storage device according to claim 1, characterized in that: The top end and the bottom end of each storage cylinder (4) are respectively connected to a sealing ring (6), and each sealing ring (6) is tightly connected to the storage shell (5).

9. The multi-sample storage device for a pneumatic conveying system according to claim 1, characterized in that: The in-place detection mechanism (7) comprises a connecting rod (701), a detection plate (702), an in-place detection sensor (703) and a bracket (704); The position detection sensor (703) comprises a signal transmitting unit and a signal receiving unit; the signal transmitting unit and the signal receiving unit are connected to a bracket (704) respectively; the bracket (704) is fixedly connected to the outer wall of the lead pot (1); the connecting rod (701) is connected to the lead pot (1) via a bearing; one end of the connecting rod (701) located outside the lead pot (1) is connected to the detection disk (702), and the other end is coaxially connected to the fixed bracket (2); the detection disk (704) is located between the signal transmitting unit and the signal receiving unit of the position detection sensor (703); The detection plate (702) is provided with a plurality of detection through holes, and when each detection through hole is located between the signal transmitting unit and the signal receiving unit, a storage cylinder (4) is opposite to the delivery pipeline (11) and the buffer gas pipeline (10).

10. The multi-sample storage device of a pneumatic conveying system according to claim 1, characterized in that: The conveying pipeline (11) is connected to a vacuum pipeline (12) and a beam sensor (8) at a position outside the lead tank (1), and the vacuum pipeline (12) is arranged close to the lead tank (1).

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