CN210154864U

CN210154864U - On-line sampler used under high-toxicity strong-corrosion condition

Info

Publication number: CN210154864U
Application number: CN201920921567.0U
Authority: CN
Inventors: 余丽敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-03-17
Anticipated expiration: 2029-06-19

Abstract

The utility model relates to a chemical industry equipment field specifically is an online sampler that uses under highly toxic and highly corrosive condition, including interior intubate, flange, nitrogen gas blowback valve, steel bottle, syringe needle sampler, vacuum pump, sampling bottle, sample valve, sampling tube, back flow and backward flow valve, the flange is passed to the one end of interior intubate, and the steel bottle is connected to the other end, still be equipped with the syringe needle sampler on the steel bottle, on the intubate is located to nitrogen gas blowback valve, the vacuum pump is located on the sampling tube, the mouth of pipe department of sampling tube is located to the sampling bottle, the one end of back flow links to each other with the sampling tube, and the flange is passed to the other end, the backward flow valve is located on the. The utility model has reasonable structure, realizes on-line sampling under the condition of high toxicity and strong corrosion, and ensures personal safety; micro sampling and large-scale sampling can be realized; totally enclosed online sampling, safety and can not introduce impurity, and in the reation kettle was got back to unnecessary material, avoid extravagant.

Description

On-line sampler used under high-toxicity strong-corrosion condition

Technical Field

The utility model relates to a chemical industry equipment field specifically is an online sampler that uses under the strong rotten condition of high toxicity.

Background

The reaction kettle is widely applied to the fields of petroleum, chemical industry, food, medicine, pesticide, scientific research and the like, and is used for completing chemical process production processes such as polymerization, condensation, vulcanization, alkylation, hydrogenation and the like in industry, and in the reaction process, technicians often need to sample and know the material properties and synthesis conditions in the reaction kettle at each stage so as to adjust the production process in time to ensure complete reaction. However, in the prior art, manual sampling is usually adopted, and when the reaction kettle is opened during sampling, the reaction process in the reaction kettle is often influenced, impurities are introduced, and especially when high-toxicity and strong-corrosion reaction is carried out, the safety of a human body is greatly threatened.

SUMMERY OF THE UTILITY MODEL

The utility model provides an online sampler used under the highly toxic and strong corrosive condition, aiming at solving the defects of the prior art.

The utility model provides a technical scheme that technical problem adopted as follows:

an online sampler used under a high-toxicity and high-corrosion condition comprises an inner insertion pipe, a flange, a nitrogen back-flushing valve, a steel cylinder, a needle head sampler, a vacuum pump, a sampling bottle, a sampling valve, a sampling pipe, a back-flow pipe and a back-flow valve, wherein one end of the inner insertion pipe penetrates through the flange, the other end of the inner insertion pipe is connected with the steel cylinder, the needle head sampler is further arranged on the steel cylinder, the nitrogen back-flushing valve is arranged on the inner insertion pipe, the vacuum pump is arranged on the sampling pipe, the sampling bottle is arranged at the pipe orifice of the sampling pipe, one end of the back-flow pipe is connected with the sampling pipe, the other.

Preferably, the sampling valve comprises a first sampling valve and a second sampling valve, the sampling pipe comprises a first sampling pipe and a second sampling pipe, one end of the first sampling pipe is connected with the steel cylinder, the other end of the first sampling pipe is connected with the second sampling pipe and the return pipe, the first sampling valve is arranged on the first sampling pipe, and the second sampling valve is arranged on the second sampling pipe.

Preferably, the included angles among the first sampling tube, the second sampling tube and the reflux tube are all 120 degrees. The 120-degree included angle ensures a stable structure among the first sampling tube, the second sampling tube and the return tube.

Preferably, the vacuum pump is arranged on the first sampling tube, and the sampling bottle is arranged at the opening of the second sampling tube.

Preferably, a sealing ring is arranged at the contact part of the flange and the inner inserting pipe and the return pipe. The sealing ring ensures the sealing connection of the inner inserting pipe and the return pipe with the flange.

Preferably, one end of the inner insertion pipe extends downwards 0.7-2 m through the flange, and one end of the return pipe extends downwards 5-10 cm through the flange.

Preferably, the vacuum pump further comprises a PLC device, the vacuum pump is connected with the PLC device through a lead, and the PLC device controls the vacuum pump. The PLC device controls the opening and closing of the vacuum pump and controls the opening time of the vacuum pump.

Preferably, the sampling device also comprises a detachable bottle sleeve which is connected with the sampling bottle in a sealing way. This of the bottle sleeve only ensures a sealed connection of the sampling bottle and facilitates the replacement of the sampling bottle.

In order to make the utility model discloses use under the strong rotten condition of high toxicity, the utility model discloses still optimize the screening to pipeline and valve:

preferably, the inner inserting tube and the sampling tube are all Hastelloy tubes.

Preferably, the sampling valve is a tetrafluoro-lined sampling valve.

Preferably, the needle sampler is a stainless steel needle sampler or a hastelloy needle sampler.

The utility model has the advantages that: (1) the utility model has reasonable structure, realizes on-line sampling under the condition of high toxicity and strong corrosion, and ensures personal safety; (2) micro sampling and large-scale sampling can be realized; (3) totally enclosed online sampling, safety and can not introduce impurity, and in the reation kettle was got back to unnecessary material, avoid extravagant.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1-inner intubation; 2-a flange; 3-a nitrogen back-flushing valve; 4-steel cylinder; 5-needle sampler; 6-a vacuum pump; 7-a PLC device; 8-a sampling valve; 81-a first sampling valve; 82-a second sampling valve; 9-sampling tube; 91-a first sampling tube; 92-a second sampling tube; 11-sampling bottle; 12-a sealing ring; 13-bottle sleeve; 14-a return pipe; 15-reflux valve.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clear, the present invention is further explained with reference to the following embodiments and drawings. It should be understood that the embodiments described herein are merely for the purpose of illustrating the invention and are not intended to limit the invention.

Referring to fig. 1, an on-line sampler used under high toxicity and strong corrosion conditions comprises an inner insertion tube 1, a flange 2, a nitrogen back-flushing valve 3, a steel cylinder 4, a needle sampler 5, a vacuum pump 6, a sampling bottle 11, a sampling valve 8, a sampling tube 9, a back-flow tube 14 and a back-flow valve 15, wherein one end of the inner insertion tube 1 penetrates through the flange 1, the other end is connected with the steel cylinder 4, the inner insertion tube 1 penetrates through the flange 2 and extends downwards for 0.7m-2m, the steel cylinder 4 is further provided with the needle sampler 5, the nitrogen back-flushing valve 3 is arranged on the inner insertion tube 1, one end of the back-flow tube 14 is connected with the sampling tube 9, the other end penetrates through the flange 2 and extends downwards for 5cm-10cm, the back-flow valve 15 is arranged on the back-flow tube 14, the sampling valve 8 comprises a first sampling valve 81 and a second sampling valve 82, the sampling tube 9 comprises a first sampling tube, the other end of the sampling tube is connected with a second sampling tube 92 and a return tube 14, the included angle between the first sampling tube 91 and the second sampling tube 92 and the return tube 14 is 120 degrees, a first sampling valve 81 is arranged on the first sampling tube 91, a second sampling valve 82 is arranged on the second sampling tube 92, a vacuum pump 6 is arranged on the first sampling tube 91, a sampling bottle 11 is arranged at the pipe orifice of the second sampling tube 92, a detachable bottle sleeve 13 which is hermetically connected with the sampling bottle 11 is also arranged above the sampling bottle 11, the sampler also comprises a PLC device 7, the PLC device 7 controls the opening and closing of the vacuum pump 6 and controls the time for opening the vacuum pump 6; in order to make the utility model discloses use under the strong rotten condition of high toxicity, the utility model discloses still optimize the screening to pipeline and valve: the inner inserting tube 1 and the sampling tube 9 are all Hastelloy tubes, the sampling valve 8 is a PTFE lining sampling valve, and the needle head sampler 5 is a stainless steel needle sampler or a Hastelloy needle sampler.

Example 1: microsampling under highly toxic and corrosive conditions

Will the utility model discloses in the device inserts reation kettle, before the sample, guarantee that all valves are all in the closed condition, set up the opening time length of vacuum pump 6 through PLC device 7, set up and open vacuum pump 6 after accomplishing, treat the vacuum pump 6 and close the back, take a sample with syringe needle sampler 5, the back is accomplished in the sample, open nitrogen gas blowback valve 3 earlier, become the ordinary pressure in the pipeline, then open first sample valve 81 and reflux valve 15, reation kettle is got back to unnecessary material, then lead to the nitrogen gas by nitrogen gas blowback valve 3 and blow the pipeline, clear up the material of adhesion in the pipeline, close all valves after the clearance is accomplished and wait for next sample.

Example 2: mass sampling under highly toxic and corrosive conditions

Will the utility model discloses in the device inserts reation kettle, before the sample, guarantee that all valves are all in the closed condition, set up the open time length of vacuum pump 6 through PLC device 7, open vacuum pump 6 after the setting is accomplished, treat the vacuum pump 6 and close the back, open first sample valve 81 and second sample valve 82, wait to receive and close second sample valve 82 after the suitable volume sample of getting, open nitrogen gas blowback valve 3 and reflux valve 15, reation kettle is got back to unnecessary material, will take sample bottle 11 and take off, place the waste liquid bottle in second sampling tube 92 mouth of pipe department, open second sample valve 82, nitrogen gas blowback valve 3 leads to nitrogen gas, purge the pipeline, the material of clearance adhesion in the pipeline, close all valves after the clearance is accomplished and wait for next sample.

Example 3: timed sampling under highly toxic and corrosive conditions

Will the utility model discloses in the device inserts reation kettle, before the sample, guarantee that all valves are all in the closed condition, set up PLC device 7 to separate fixed time interval and start the vacuum pump, can realize regularly taking a sample, trace or a large amount of sample operation under the strong rotten condition of high toxicity are with embodiment 1 or embodiment 2.

The above-described embodiment is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the invention as set forth in the claims.

Claims

1. An on-line sampler used under the condition of high toxicity and strong corrosion is characterized by comprising an inner insertion pipe (1), a flange (2), a nitrogen back-flushing valve (3), a steel cylinder (4), a needle sampler (5), a vacuum pump (6), a sampling bottle (11), a sampling valve (8), a sampling pipe (9), a return pipe (14) and a return valve (15), one end of the inner inserting pipe (1) penetrates through the flange (2), the other end is connected with the steel cylinder (4), the steel cylinder (4) is also provided with a needle sampler (5), the nitrogen back-blowing valve (3) is arranged on the inner insertion pipe (1), the vacuum pump (6) is arranged on the sampling tube (9), the sampling bottle (11) is arranged at the tube mouth of the sampling tube (9), one end of the return pipe (14) is connected with the sampling pipe (9), the other end of the return pipe penetrates through the flange (2), and the return valve (15) is arranged on the return pipe (14).

2. The on-line sampler used under the condition of high toxicity and strong corrosion according to claim 1, wherein the sampling valve (8) comprises a first sampling valve (81) and a second sampling valve (82), the sampling tube (9) comprises a first sampling tube (91) and a second sampling tube (92), one end of the first sampling tube (91) is connected with the steel cylinder (4), the other end of the first sampling tube is connected with the second sampling tube (92) and the return tube (14), the included angle between the first sampling tube (91) and the second sampling tube (92) and the return tube (14) is 120 °, the first sampling valve (81) is arranged on the first sampling tube (91), and the second sampling valve (82) is arranged on the second sampling tube (92).

3. The on-line sampler for use under high toxicity and strong corrosion conditions as claimed in claim 2, wherein the vacuum pump (6) is disposed on the first sampling tube (91), and the sampling bottle (11) is disposed at the nozzle of the second sampling tube (92).

4. An in-line sampler for use under conditions of high toxicity and high corrosion according to claim 2, wherein the flange (2) is provided with a sealing ring (12) at the contact point with the inner cannula (1) and the return tube (14).

5. An in-line sampler for use under conditions of high toxicity and high corrosion according to claim 2, wherein one end of said internal tube (1) extends downward 0.7m to 2m through the flange (2), and one end of said return tube (14) extends downward 5cm to 10cm through the flange (2).

6. An in-line sampler for use under conditions of high toxicity and strong corrosion according to claim 1, further comprising a removable vial cover (13) sealingly connected to the sampling vial (11).

7. The on-line sampler for use under high toxicity and strong corrosion conditions according to claim 1, further comprising a PLC device (7), wherein the vacuum pump (6) is connected with the PLC device (7) through a wire, and the PLC device (7) controls the vacuum pump (6).

8. An in-line sampler for use under conditions of high toxicity and strong corrosion according to claim 1, wherein the inner cannula (1) and the sampling tube (9) are all Hastelloy tubes.

9. An in-line sampler for use under conditions of high toxicity and high corrosion according to claim 1, wherein the sampling valve (8) is a teflon-lined sampling valve.

10. The on-line sampler for use under high toxicity and high corrosion conditions according to claim 1, wherein the needle sampler (5) is a stainless steel needle sampler or hastelloy needle sampler.