CN204461837U - Recycle hydrogen sampler - Google Patents

Abstract

The utility model relates to hydrocracking production field, particularly relates to recycle hydrogen sampler.Recycle hydrogen sampler, be connected with recycle hydrogen pipeline by sample tap, the first valve is connected with sample tap, and the second valve is connected with the first valve, second valve is connected with sampling bladders by the first outlet, and the second valve leads to below the alkali lye liquid level of alkali lye bottle by the second outlet.This apparatus structure is simple, and convenient operation, effectively can avoid the hydrogen sulfide poisoning in sampling process.

Description

Circulating Hydrogen Sampling Device

technical field

The utility model relates to the field of hydrocracking production, in particular to a circulating hydrogen sampling device.

Background technique

Hydrocracking requires a large amount of hydrogen, and a large part of hydrogen does not participate in the reaction. The purpose of recycling hydrogen is to utilize this part of hydrogen. There is a large amount of hydrogen sulfide in circulating hydrogen, and hydrogen sulfide is a highly toxic chemical, and there is a great risk in sampling. There are many reports of personal injury and death accidents caused by sample leakage during circulating hydrogen sampling. At present, circulating hydrogen sampling requires more skills, such as standing in the upwind direction. At present, there is no sampling device aimed at preventing hydrogen sulfide poisoning during the sampling process of circulating hydrogen.

Contents of the invention

The utility model provides a circulating hydrogen sampling device aimed at the deficiencies of the prior art. The device is simple in structure, easy to operate, and can effectively avoid hydrogen sulfide poisoning in the sampling process.

The technical scheme provided by the utility model is:

The circulating hydrogen sampling device is connected to the circulating hydrogen pipeline through the sampling port, the first valve is connected to the sampling port, the second valve is connected to the first valve, the second valve is connected to the sampling bladder through the first outlet, and the second valve is connected to the second The outlet leads to below the lye liquid level of the lye bottle.

Specifically, the first outlet is connected to the sampling bladder through a latex tube.

Specifically, the first outlet is passed below the lye liquid level of the lye bottle through the latex tube.

Specifically, the sampling port is connected to the circulating hydrogen pipeline through a flange.

The utility model has the following technical advantages:

1. The product is simple in structure, scientific and reasonable in design, easy to operate, and reduces the difficulty of sampling. Anyone can take out representative samples well.

2. There is no hydrogen sulfide leakage during sampling, which reduces the safety risk during sampling.

Description of drawings

Fig. 1 is a structural representation of the utility model;

1 Sampling port 2 First valve 3 Second valve 4 First outlet 5 Clip

6 sampling bladder 7 second outlet 8 lye bottle.

Detailed ways

 As shown in Figure 1, the circulating hydrogen sampling device is connected to the circulating hydrogen pipeline through the sampling port through the flange. The first valve is connected with the sampling port, the second valve is connected with the first valve, and the second valve is connected with the sampling bladder through the latex tube from the first outlet. The second valve leads to below the lye liquid level of the lye bottle through the latex tube from the second outlet.

The sampling operation specification is as follows:

1. Connect the circulating hydrogen sampling device to the circulating hydrogen pipeline, usually keep the first valve slightly open according to the sampling volume, and operate through the second valve switch;

2. Install the sampling bladder to the end of the latex tube connected to the first outlet;

3. Clamp the clip on the latex tube connected to the first outlet to the rubber tube;

4. Put the outlet end of the latex tube connected to the second outlet into the lye bottle filled with 50% sodium hydroxide with a liquid level concentration of 30%;

5. When sampling for the first time: open the second valve to the half-open position, slowly open the first valve until there are bubbles in the lye bottle, adjust the opening degree of the first valve until the bubbling speed is uniform and appropriate; when sampling later: Slowly open the second valve until uniform bubbles emerge from the lye bottle;

6. Remove the clamp of the latex tube connected to the first outlet to let the gas enter the sampling bladder;

7. The sampler pinches the latex tube connected to the second outlet with his hands to let the gas enter the sampling bladder;

8. After the bladder is filled with sample gas, the sampler loosens the latex tube connected to the second outlet to let the gas be discharged from the lye bottle, and the sampler is draining the gas in the sampling bladder;

9. Repeat 7-8, more than 3 times.

10. Finally, fill the bladder, clamp the latex tube connected to the first outlet with a clamp, close the second valve, and keep the opening of the first valve. That is, sampling is complete.

 Since circulating hydrogen contains a large amount of hydrogen sulfide, hydrogen sulfide is absorbed by the sodium hydroxide solution in the lye bottle, and the tail gas no longer contains hydrogen sulfide.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model and not limit it; although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand that: still The specific implementation of the utility model can be modified or some technical features can be equivalently replaced; without departing from the spirit of the technical solution of the utility model, all of them should be included in the scope of the technical solution claimed by the utility model.

Claims (4)

1. The circulating hydrogen sampling device is connected with the circulating hydrogen pipeline through the sampling port, characterized in that the first valve is connected with the sampling port, the second valve is connected with the first valve, and the second valve is connected with the sampling bladder through the first outlet, The second valve leads to below the lye liquid level of the lye bottle through the second outlet. 2. The circulating hydrogen sampling device according to claim 1, wherein the first outlet is connected to the sampling bladder through a latex tube. 3. The circulating hydrogen sampling device according to claim 1, characterized in that, the first outlet is passed into the lye bottle below the lye level through the latex tube. 4. The circulating hydrogen sampling device according to claim 1, wherein the sampling port is connected to the circulating hydrogen pipeline through a flange.