CN210071402U

CN210071402U - Online sampling device for large amount of samples in reaction kettle

Info

Publication number: CN210071402U
Application number: CN201920921554.3U
Authority: CN
Inventors: 余丽敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-02-14
Anticipated expiration: 2029-06-19

Abstract

The utility model belongs to the technical field of chemical industry equipment, especially, online sampling device of a large amount of samples in reation kettle, including reation kettle, be equipped with the sample connection on the reation kettle, still including the sampling device who locates the reation kettle top, sampling device includes interior intubate, nitrogen gas blowback valve, pneumatic diaphragm pump, inlet pipe, feed valve and sampler, in reation kettle was arranged in to the one end of interior intubate, the other end linked to each other with the sample valve, the top of sample valve is equipped with the inlet pipe, the inlet pipe is equipped with nitrogen gas blowback valve and pneumatic diaphragm pump by bottom to top in proper order, the sampler is connected with the inlet pipe. The utility model is of a totally-enclosed structure, avoids the phenomena of pollution and leakage, saves the cost of human resources; the sampling is representative, the waste of materials can be avoided, and the problem of pipeline blockage possibly occurring in the reaction process can be actively solved; rational in infrastructure, easily wash, and the sample bottle can realize the sample work of a large amount of samples.

Description

Online sampling device for large amount of samples in reaction kettle

Technical Field

The utility model belongs to the technical field of the chemical industry equipment technique and specifically relates to an online sampling device of a large amount of samples in reation kettle.

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, the prior art usually adopts manual sampling, opens reation kettle during the sample, often can exert an influence to the reaction in the reation kettle, introduces impurity to a large amount of sample works have very big degree of difficulty, still can cause the material extravagant, cause the threat scheduling problem to personal safety.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve the problem that prior art exists, provide one kind and neither can introduce impurity, can take a large amount of samples again, can not cause the online sampling device of a large amount of samples in the extravagant reation kettle of material.

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

the utility model provides an online sampling device of a large amount of samples in reation kettle, includes reation kettle, the last sample connection that is equipped with of reation kettle still includes the sampling device who locates the reation kettle top, sampling device includes interior intubate, nitrogen gas blowback valve, pneumatic diaphragm pump, inlet pipe, feed valve and sampler, in reation kettle was arranged in to the one end of interior intubate, the other end linked to each other with the sample valve, the top of sample valve is equipped with the inlet pipe, the inlet pipe is by being equipped with nitrogen gas blowback valve and pneumatic diaphragm pump on going in proper order, the sampler is connected with the inlet pipe.

Preferably, the sampler comprises a sampling bottle, a bottle sleeve, a sampling pipe, a return pipe, a sampling valve, a first return valve and a second return valve, the bottle sleeve is hermetically connected with the sampling bottle, the sampling valve is arranged on the sampling pipe, the sampling pipe is provided with the sampling bottle, one end of the return pipe is connected with the first return valve, the other end of the return pipe is arranged in the reaction kettle, and the second return valve is arranged on the return pipe.

Preferably, the device further comprises a flange, the flange is arranged at the sampling port of the reaction kettle, and the inner insertion pipe and the second return pipe both fixedly penetrate through the flange. The flange fixed pipeline that sets up plays certain guard action, and the flange is fixed in reation kettle's sample connection department simultaneously, has guaranteed sealed environment.

Preferably, the flange is at least DN 125.

Preferably, movable joints are arranged at the joints of the feed valve and the second return valve with the pipeline. The movable joint is convenient for the timing cleaning of the sampling device.

Preferably, the bottle sleeve is made of rubber. The bottle cover made of rubber is convenient for the sampling tube to pass through and is convenient to disassemble.

Preferably, the sampling valve is a V-ball valve. The flow is adjusted to the V-arrangement ball valve, is convenient for control the sample volume.

Preferably, the sampling bottle is a high-temperature-resistant transparent glass sampling bottle. The reaction kettle is mostly high-temperature reaction, the sampling bottle is high-temperature resistant and is placed to be cracked, and the transparent glass is convenient for observing the sampling amount.

Preferably, the inner insert tube is placed 1/2 below the liquid level in the reaction kettle. The reaction solution at 1/2 below the liquid level in the reaction kettle is more representative.

Preferably, a valve interface of the nitrogen blowback valve is communicated with high-pressure gas to dredge a pipeline, and is communicated with cleaning liquid to clean the pipeline and the system.

The utility model discloses following beneficial effect has: (1) the utility model is of a totally-enclosed structure, avoids the phenomena of pollution and leakage, saves the cost of human resources; (2) the flow is spacious, the passing performance is good, viscous liquid can be conveyed, the arrangement of the return pipe can avoid the waste of materials, and the problem of pipeline blockage possibly occurring in the reaction process can be actively solved; (3) rational in infrastructure, easily wash, and the sample bottle can realize the sample work of a large amount of samples.

Drawings

Fig. 1 is a front view of the present invention;

in the figure: 1-inner intubation; 2-a nitrogen back-flushing valve; 3-a pneumatic diaphragm pump; 4-a sampling valve; 5-a return pipe; 6-sampling a bottle; 7-a feed valve; 9-feeding pipe; 10-a first reflux valve; 12-a reaction kettle; 13-a flange; 14-bottle sleeve; 15-a loose joint; 16-a second reflux valve; 17-sampling tube.

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.

Examples

As shown in fig. 1, an online sampling device for a large number of samples in a reaction kettle comprises a reaction kettle 12, wherein a sampling port is arranged on the reaction kettle 12, and the online sampling device also comprises a sampling device arranged above the reaction kettle 12, the sampling device comprises an inner insertion tube 1, a nitrogen back-flushing valve 2, a pneumatic diaphragm pump 3, a feeding tube 9, a feeding valve 7 and a sampler, one end of the inner insertion tube 1 is arranged at 1/2 below the liquid level in the reaction kettle 12 to ensure the sampling to be representative, the other end of the inner insertion tube 1 is connected with the feeding valve 7, the feeding tube 9 is arranged above the feeding valve 7, the feeding tube 9 is sequentially provided with the nitrogen back-flushing valve 2 and the pneumatic diaphragm pump 3 from bottom to top, a valve interface of the nitrogen back-flushing valve 2 is communicated with high-pressure gas to dredge the pipeline; the feeding pipe 9 is divided into two parts by the diaphragm pump 3, the feeding pipe 9 between the diaphragm pump 3 and the feeding valve 7 is of a vertical structure, materials can enter the diaphragm pump 3 without obstruction, the feeding pipe 9 between the diaphragm pump 3 and the sampler is of an L-shaped structure, and the arrangement of the L-shaped structure reduces the flow of the materials, so that the sampling amount is easy to control; the sampler comprises a sampling bottle 6, a bottle sleeve 14 and a sampling tube 17, back flow pipe 5, sampling valve 4, first return valve 10 and second return valve 16, bottle cover 14 and sampling bottle 6 sealing connection, bottle cover 14 is the rubber material, sampling valve 4 is located on sampling pipe 17, sampling valve 4 is the V-arrangement ball valve, the flow can be adjusted to the V-arrangement ball valve, be convenient for sample, sampling pipe 17 below is equipped with sampling bottle 6, sampling bottle 6 is high temperature resistant transparent glass sampling bottle, the one end of back flow pipe 5 links to each other with first return valve 10, the other end is arranged in reation kettle 12, second return valve 16 is located on back flow pipe 5, sampling device still includes flange 13, the sample connection department of reation kettle 12 is located to flange 13, interior intubate 1 and second return pipe 5 all fixed flange 13 that passes, the flange minimum is DN125, feed valve 7 and second return valve 16 and pipe connection department all are equipped with union 15, union 15's setting makes things convenient for timing of sampling device to wash.

The utility model discloses before the use, ensure that all valves are all in the closed condition, during the use, open feed valve 7 and sample valve 4 earlier, suitable sample flow is adjusted to sample valve 4, then restart diaphragm pump 3, the material is passed through diaphragm pump 3 by interior intubate 1 and is got into sampling flask 6, close sample valve 4 after the sample is accomplished, open reflux valve 10, then close pneumatic diaphragm pump 3 and sampling valve 7, open nitrogen gas blowback valve 2 simultaneously, become the ordinary pressure in the pipeline, unnecessary material returns reation kettle 12 through back flow 5, the waste of material has been avoided, after the backward flow, nitrogen gas blowback valve 2 lets in nitrogen gas, sweep the pipeline in order to accomplish cleaning, wait for sample next time.

If a sample with a capacity larger than that of the sampling bottle 6 needs to be taken, the sampling valve 4 is closed after the sampling of one sampling bottle 6 is finished, the sampling bottle 6 is taken down from the bottle sleeve 14, the sampling bottle with the same type is replaced to be hermetically connected with the bottle sleeve, and the sampling valve 4 is opened to continue sampling.

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. The utility model provides an online sampling device of a large amount of samples in reation kettle, includes reation kettle (12), be equipped with the sample connection on reation kettle (12), its characterized in that, still including the sampling device who locates reation kettle (12) top, sampling device is including interior intubate (1), nitrogen gas blowback valve (2), pneumatic diaphragm pump (3), inlet pipe (9), feed valve (7) and sampler, in reation kettle (12) was arranged in to the one end of intubate (1), the other end links to each other with feed valve (7), the top of feed valve (7) is equipped with inlet pipe (9), inlet pipe (9) are equipped with nitrogen gas blowback valve (2) and pneumatic diaphragm pump (3) from bottom to top in proper order, the sampler is connected with inlet pipe (9).

2. The on-line sampling device for a large number of samples in a reaction kettle according to claim 1, wherein the sampler comprises a sampling bottle (6), a bottle sleeve (14), a sampling pipe (17), a return pipe (5), a sampling valve (4), a first return valve (10) and a second return valve (16), the bottle sleeve (14) is hermetically connected with the sampling bottle (6), the sampling valve (4) is arranged on the sampling pipe (17), the sampling bottle (6) is arranged below the sampling pipe (17), one end of the return pipe (5) is connected with the first return valve (10), the other end of the return pipe is arranged in the reaction kettle (12), and the second return valve (16) is arranged on the return pipe (5).

3. The on-line sampling device for a large amount of samples in a reaction kettle according to claim 2, further comprising a flange (13), wherein the flange (13) is arranged at the sampling port of the reaction kettle (12), and the inner plug tube (1) and the second return tube (5) are fixedly penetrated through the flange (13).

4. An in-line sampling device for a large number of samples in a reaction kettle according to claim 3, characterized in that the flange (13) is DN125 at the minimum.

5. The on-line sampling device for a large amount of samples in a reaction kettle according to claim 2, characterized in that the joints (15) of the feeding valve (7) and the second reflux valve (16) and the pipeline are provided.

6. The on-line sampling device for a large number of samples in a reaction kettle according to claim 2, characterized in that the bottle sleeve (14) is made of rubber.

7. The on-line sampling device for a large number of samples in a reaction kettle according to claim 2, characterized in that the sampling valve (4) is a V-shaped ball valve.

8. The on-line sampling device for a large amount of samples in a reaction kettle according to claim 2, characterized in that the sampling bottle (6) is a high temperature-resistant transparent glass sampling bottle.

9. The on-line sampling device for a large amount of samples in a reaction kettle as claimed in claim 1, wherein one end of said inner cannula (1) is placed 1/2 below the liquid level in the reaction kettle (12).