Autoclave sampling device for aminoacetaldehyde dimethyl acetal production

Abstract

The utility model discloses an autoclave sampling device for aminoacetaldehyde dimethyl acetal production, which belongs to the technical field of autoclave sampling and comprises a supporting unit, a sliding unit, a driving unit and a sampling unit. An inlet is formed in the upper surface of the fixing block, the sliding unit comprises a sliding groove formed in the top of the fixing barrel, a T-shaped sliding block sliding in the sliding groove in a lifting mode and a telescopic rod vertically and fixedly connected with the top of the T-shaped sliding block, and the driving unit comprises an air cylinder arranged at the top of the supporting frame. A driving rod is arranged at the bottom of the air cylinder, a top block is fixedly connected with the bottom of the driving rod, and the side surface of the top block is fixedly connected with the side wall of the telescopic rod. The sampling device has the advantages that the sampling work can be carried out by adjusting the atmospheric pressure through the sampling unit, the internal pressure of the kettle body is not required to be matched for use, and the operation and the sampling are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of autoclave sampling, in particular to an autoclave sampling device used for the production of aminoacetaldehyde dimethyl acetal. Background Art

[0002] High-pressure reaction is a common reaction process in chemical experiments. At present, many industrially produced liquid chemical products need to react in an autoclave. During the reaction process, liquid samples need to be sampled and tested. The common method is to insert a sampling probe into the autoclave to take samples.

[0003] Before sampling, some necessary preparations must be made. For example, check the sealing status of the autoclave, confirm that the pressure inside the autoclave has dropped to the normal range (usually atmospheric pressure), and ensure that the sampling equipment is sterilized, dry, and clean. Rapid exhaust can reduce the internal pressure of the sample, thereby achieving the purpose of sampling.

[0004] The specific operation method is: open the exhaust valve and wait for a few seconds, then move the sampler into the reactor, quickly close the sampler and close the exhaust valve. At this time, the sample will be placed in a low-pressure state. This method can quickly obtain reliable samples.

[0005] However, the above method is relatively cumbersome and requires maintaining the internal pressure of the kettle body in order for the sampler to take samples, which has great limitations.

[0006] Based on this, it is necessary to propose a sampling device that can perform sampling work without being affected by the internal pressure of the reactor. Utility Model Content

[0007] The purpose of the utility model is to provide a high-pressure autoclave sampling device for the production of aminoacetaldehyde dimethyl acetal, so as to solve the above technical problems to at least a certain extent and to make the sampling work of samples more convenient.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: comprising a support unit, a sliding unit, a driving unit and a sampling unit, wherein the support unit comprises a kettle body, a fixing block is fixedly mounted on the top of the kettle body, an entrance is provided on the upper surface of the fixing block, a cylindrical hollow fixing cylinder is provided on the top of the fixing block, an observation port is provided on one side of the fixing cylinder, and support frames are provided at both ends of the fixing cylinder on the top of the kettle body;

[0009] The sliding unit includes a sliding groove provided on the top of the fixed cylinder, a T-shaped slider that moves up and down in the sliding groove, and a telescopic rod that is vertically fixedly connected to the top of the T-shaped slider;

[0010] The driving unit includes a cylinder arranged on the top of the support frame, a driving rod is provided at the bottom of the cylinder, a top block is fixedly connected to the bottom of the driving rod, the side of the top block is fixedly connected to the side wall of the telescopic rod, and a rubber block is provided at the bottom of the top block;

[0011] The sampling unit includes a positioning cylinder fixedly connected to the side wall of the T-shaped slider, a through positioning opening is provided on the top of the positioning cylinder, an anti-slip ring is fixedly installed inside the positioning opening, a sampling tube is inserted into the inside of the anti-slip ring, and a rubber ring is sleeved on the bottom of the sampling tube.

[0012] Preferably, the sampling tube is hollow, both ends of the sampling tube are open, and the lower surface area of ​​the sampling tube is smaller than the lower surface area of ​​the inlet.

[0013] Preferably, the positioning port is conically arranged, the lower surface area of ​​the positioning port is smaller than the lower surface area of ​​the sampling tube, the lower surface area of ​​the anti-slip ring is smaller than the lower surface area of ​​the sampling tube, and the inner wall of the anti-slip ring contacts the outer wall of the sampling tube.

[0014] Preferably, the rubber block and the sampling tube are both cylindrical, and the upper surface area of ​​the rubber block is larger than the upper surface area of ​​the sampling tube.

[0015] Preferably, the rubber block and the sampling tube are in the same vertical plane.

[0016] Preferably, the sliding units are symmetrically arranged at both ends of the fixing cylinder, and both sliding units are not in contact with the positioning cylinder.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] When the cylinder is in use, the sampling tube is inserted into the positioning tube, which is limited and fixed by the anti-slip ring. The cylinder drives the driving rod to extend downward, so that the telescopic rod moves downward and contracts, and the rubber block and the top of the sampling tube move, exerting a downward force. At this time, the sliding unit and the sampling unit go deeper downward along the fixed tube, and the sampling tube enters the kettle body through the inlet port and is in the liquid. The sampling unit is driven to continue to go deeper downward, and the lowest position of the sampling tube on the fixed tube is observed through the observation port, that is, the rubber ring contacts and is subjected to force with the lower surface of the inner part of the kettle body. At this time, the rubber block is inserted into the sampling tube, and due to the effect of atmospheric pressure, the liquid in the sampling tube cannot leak out. The sampling unit is retracted by the driving unit, and the liquid sample can be brought out of the kettle body, and the liquid sample can be collected. In the above method, the atmospheric pressure can be adjusted by the sampling unit to carry out the sampling work, and the internal pressure of the kettle body does not need to be used in conjunction, which is convenient for operation and sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the external structure of the overall structure of this embodiment;

[0021] Figure 2 This is an enlarged schematic diagram of the structure at point A of this embodiment;

[0022] Figure 3 This is an enlarged schematic diagram of the structure at point B of this embodiment;

[0023] Figure 4 This is a schematic cross-sectional view of the support unit structure of this embodiment;

[0024] Figure 5 This is an enlarged schematic diagram of the structure at point C in this embodiment.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 100, support unit; 110, kettle body; 120, fixing block; 121, entrance; 130, fixing cylinder; 131, observation port; 140, support frame;

[0027] 200, sliding unit; 210, slide groove; 220, T-shaped slider; 230, telescopic rod;

[0028] 300, driving unit; 310, cylinder; 311, driving rod; 320, top block; 330, rubber block;

[0029] 400, sampling unit; 410, positioning cylinder; 411, positioning port; 420, anti-slip ring; 430, sampling tube; 440, rubber ring. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1-5The utility model provides a technical solution: a high-pressure autoclave sampling device for the production of aminoacetaldehyde dimethyl acetal, comprising a support unit 100, a sliding unit 200, a driving unit 300 and a sampling unit 400. The support unit 100 includes a kettle body 110. The kettle body 110 is a conventional high-pressure autoclave setting, has no special purpose and structure, and is not described in detail here. A fixed block 120 is fixedly installed on the top of the kettle body 110. The fixed block 120 allows the sliding unit 200 and other structures to be vertically arranged for convenient subsequent use. The lower surface area of ​​the sampling tube 430 is smaller than the lower surface area of ​​the inlet 121. The upper surface of the fixed block 120 is provided with an inlet 121, and the inlet 121 is used to facilitate the entry and removal of the sampling tube 430.

[0032] The sampling tube 430 is hollow, and both ends of the sampling tube 430 are open. The hollow setting of the sampling tube 430 facilitates the entry of liquid, and the sampling tube 430 is transparent, which facilitates the observation of the liquid content therein. A cylindrical hollow fixed cylinder 130 is provided on the top of the fixed block 120. The fixed cylinder 130 facilitates the setting and use of the sliding unit 200 and the sampling unit 400, and maintains a vertical state. An observation port 131 is provided on one side of the fixed cylinder 130, through which the position and state of the sampling tube 430 in the fixed cylinder 130 can be observed. A support frame 140 is provided at both ends of the fixed cylinder 130 on the top of the kettle body 110, and the drive device can be installed and put into practical use through the support frame 140.

[0033] See Figure 3 and Figure 5 In a preferred embodiment, the sliding unit 200 includes a slide groove 210 opened at the top of the fixed cylinder 130, a T-shaped slider 220 that slides up and down in the slide groove 210, and a telescopic rod 230 vertically fixedly connected to the top of the T-shaped slider 220. The sliding units 200 are symmetrically opened at both ends of the fixed cylinder 130, and the two sliding units 200 do not contact the positioning cylinder 410.

[0034] Through the slide groove 210, a pair of T-shaped sliders 220 can move with the driving device, and the telescopic rod 230 will also be adjusted with the extension and retraction of the driving device. The sliding unit 200 will not be blocked by other structures during the up and down sliding process, maintaining smooth movement, and can timely adjust the height of the sampling unit 400 to reduce the error rate.

[0035] See Figure 2 、 Figure 3 、 Figure 4 and Figure 5In a further preferred embodiment, the sampling unit 400 includes a positioning cylinder 410 fixedly connected to the side wall of the T-shaped slider 220, and a through positioning port 411 is provided on the top of the positioning cylinder 410. The positioning port 411 is conical. The conical shape of the positioning port 411 makes the anti-slip ring 420 and the positioning port 411 have the same configuration, so that the sampling tube 430 can be fixed therein and will not slip out, and the force applied to the sampling tube 430 can be increased. The lower surface area of ​​the positioning port 411 is smaller than the lower surface area of ​​the sampling tube 430. The anti-slip ring 420 is fixedly installed inside the positioning port 411, and the inner surface of the anti-slip ring 420 The sampling tube 430 is inserted into the bottom, the lower surface area of ​​the anti-slip ring 420 is smaller than the lower surface area of ​​the sampling tube 430, the inner wall of the anti-slip ring 420 contacts the outer wall of the sampling tube 430, the positioning cylinder 410 does not contact the sampling tube 430, and the anti-slip ring 420 is arranged in the positioning port 411, that is, the sampling tube 430 is in the anti-slip ring 420 and is in full contact with the anti-slip ring 420, and is not easy to fall off. A rubber ring 440 is sleeved on the bottom of the sampling tube 430. The setting of the rubber ring 440 can protect the bottom of the sampling tube 430 to prevent the bottom of the sampling tube 430 from breaking after contacting other objects, thereby ensuring the normal use of the sampling tube 430.

[0036] See Figure 2 、 Figure 3 and Figure 5 In a further preferred embodiment, the driving unit 300 includes a cylinder 310 arranged at the top of the support frame 140, and a driving rod 311 is provided at the bottom of the cylinder 310, and a top block 320 is fixedly connected to the bottom of the driving rod 311, and the side of the top block 320 is fixedly connected to the side wall of the telescopic rod 230, and a rubber block 330 is provided at the bottom of the top block 320. The rubber block 330 and the sampling tube 430 are both cylindrical, and the upper surface area of ​​the rubber block 330 is larger than the upper surface area of ​​the sampling tube 430, and the rubber block 330 and the sampling tube 430 are in the same vertical plane.

[0037] The cylinder 310 drives the driving rod 311 to extend downward, causing the telescopic rod 230 to move downward and retract. The rubber block 330 and the top of the sampling tube 430 move, exerting a downward force. At this time, the sliding unit 200 and the sampling unit 400 move downward along the fixed cylinder 130. The sampling tube 430 enters the kettle body 110 through the inlet 121 and is immersed in the liquid. The sampling unit 400 is driven by the driving unit 300 to continue to move downward. Through the observation port 131, it is observed that the sampling tube 430 is at the lowest position on the fixed cylinder 130, that is, the rubber ring 440 is in contact with the lower surface of the interior of the kettle body 110 and is subjected to force. At this time, the rubber block 330 is inserted into the sampling tube 430. Due to the effect of atmospheric pressure, the liquid in the sampling tube 430 cannot leak out.

[0038] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure autoclave sampling device for aminoacetaldehyde dimethyl acetal production, comprising a support unit (100), a sliding unit (200), a driving unit (300) and a sampling unit (400), characterized in that: The support unit (100) comprises a kettle body (110), a fixing block (120) is fixedly mounted on the top of the kettle body (110), an inlet (121) is provided on the upper surface of the fixing block (120), a cylindrical hollow fixing cylinder (130) is provided on the top of the fixing block (120), an observation port (131) is provided on one side of the fixing cylinder (130), and support frames (140) are provided on the top of the kettle body (110) at both ends of the fixing cylinder (130); The sliding unit (200) includes a sliding groove (210) provided at the top of the fixed cylinder (130), a T-shaped sliding block (220) that slides up and down in the sliding groove (210), and a telescopic rod (230) that is vertically fixedly connected to the top of the T-shaped sliding block (220); The driving unit (300) includes a cylinder (310) arranged on the top of the support frame (140), a driving rod (311) is provided at the bottom of the cylinder (310), a top block (320) is fixedly connected to the bottom of the driving rod (311), a side surface of the top block (320) is fixedly connected to the side wall of the telescopic rod (230), and a rubber block (330) is provided at the bottom of the top block (320); The sampling unit (400) includes a positioning cylinder (410) fixedly connected to the side wall of the T-shaped slider (220), a through positioning opening (411) is provided on the top of the positioning cylinder (410), an anti-slip ring (420) is fixedly installed inside the positioning opening (411), a sampling tube (430) is inserted into the inside of the anti-slip ring (420), and a rubber ring (440) is sleeved on the bottom of the sampling tube (430).

2. The autoclave sampling device for aminoacetaldehyde dimethyl acetal production according to claim 1, characterized in that: The sampling tube (430) is hollow, both ends of the sampling tube (430) are open, and the lower surface area of ​​the sampling tube (430) is smaller than the lower surface area of ​​the inlet (121).

3. The autoclave sampling device for aminoacetaldehyde dimethyl acetal production according to claim 1, characterized in that: The positioning opening (411) is arranged in a conical shape, the lower surface area of ​​the positioning opening (411) is smaller than the lower surface area of ​​the sampling tube (430), the lower surface area of ​​the anti-slip ring (420) is smaller than the lower surface area of ​​the sampling tube (430), and the inner wall of the anti-slip ring (420) contacts the outer wall of the sampling tube (430).

4. The autoclave sampling device for aminoacetaldehyde dimethyl acetal production according to claim 1, characterized in that: The rubber block (330) and the sampling tube (430) are both cylindrical, and the upper surface area of ​​the rubber block (330) is larger than the upper surface area of ​​the sampling tube (430).

5. The autoclave sampling device for aminoacetaldehyde dimethyl acetal production according to claim 4, characterized in that: The rubber block (330) and the sampling tube (430) are located on the same vertical plane.

6. The autoclave sampling device for aminoacetaldehyde dimethyl acetal production according to claim 1, characterized in that: The sliding units (200) are symmetrically arranged at both ends of the fixed cylinder (130), and both sliding units (200) are not in contact with the positioning cylinder (410).

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