CN210690158U - Anhydrous hydrogen fluoride sampling system - Google Patents
Anhydrous hydrogen fluoride sampling system Download PDFInfo
- Publication number
- CN210690158U CN210690158U CN201921376606.XU CN201921376606U CN210690158U CN 210690158 U CN210690158 U CN 210690158U CN 201921376606 U CN201921376606 U CN 201921376606U CN 210690158 U CN210690158 U CN 210690158U
- Authority
- CN
- China
- Prior art keywords
- adapter
- sampling bottle
- valve
- acid
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses an anhydrous hydrogen fluoride sampling system, it includes high-pressure HF storage tank, upper reaches adapter, sampling bottle, low reaches adapter and retrieves the jar. The advantages are that: the utility model firstly utilizes nitrogen gas to carry out the tightness test, which is safe and low in cost; the original hydrogen fluoride sample of the sampling bottle can be flushed and replaced on line through the fresh hydrogen fluoride sample without being discharged on site, so that the probability of environmental pollution and personnel injury is reduced; the acid sample flows through the sampling bottle from front to back, so that the sampling bottle can be fully washed, the authenticity of the sample is ensured, the one-way liquid filling and discharging are avoided, the deviation of the sample in the liquid filling process is avoided, and the abnormal condition that the sample is not authentic or even the sample cannot be taken due to misoperation is avoided; in addition, in the whole sampling process, original acid samples in the sampling bottle, fresh acid samples used for flushing and acid samples subjected to pressure relief all enter the recovery tank, so that the acid samples are not discharged outside, and the pollution to the environment is reduced.
Description
The technical field is as follows:
the utility model relates to a sampling system especially relates to an anhydrous hydrogen fluoride sampling system.
Background art:
in the alkylation production process, anhydrous hydrogen fluoride is required to be used as a catalyst, and the purity and the trace water content of the anhydrous hydrogen fluoride are required to be analyzed after sampling.
The traditional anhydrous hydrogen fluoride sampler is a container with only one inlet and one outlet, and in the sampling process, the sampling bottle needs to be repeatedly filled and fresh anhydrous hydrogen fluoride is discharged, and the repeated operation needs to be carried out for at least 5 times, so that the original acid sample in the sampling bottle can be washed and replaced. However, in the actual use process, there are the following problems: 1. the fresh anhydrous hydrogen fluoride used for flushing the sampling bottle has larger amount, which causes the waste of the anhydrous hydrogen fluoride; 2. the anhydrous hydrogen fluoride after washing the sampling bottle directly discharges to the atmosphere in, has caused the pollution to the environment, and discharges the in-process of anhydrous hydrogen fluoride, can cause the potential safety hazard to the staff, still can cause the corruption to equipment on every side.
The utility model has the following contents:
an object of the utility model is to provide a simple structure, convenient operation's anhydrous hydrogen fluoride sampling system.
The utility model discloses by following technical scheme implement:
an anhydrous hydrogen fluoride sampling system comprises a high-pressure HF storage tank, an upstream adapter, a sampling bottle, a downstream adapter and a recovery tank;
the sampling bottle is a container with openings at two ends, and the high-pressure HF storage tank, the upstream adapter, the sampling bottle, the downstream adapter and the recovery tank are sequentially connected in a sealing manner through pipelines;
connect the high pressure HF storage tank with be equipped with into acid valve on the acid pipe of upper reaches adapter, be connected the upper reaches adapter with be equipped with the upper reaches valve on the pipeline of sampling bottle, be connected the sampling bottle with be equipped with the low reaches valve on the pipeline of low reaches adapter, be in the intercommunication the low reaches adapter with be equipped with on the pipeline of recovery jar and arrange acid valve.
Further, the device also comprises a nitrogen source, wherein the gas outlet of the nitrogen source is communicated with the acid inlet pipe at the downstream of the acid inlet valve through a pipeline; and a nitrogen valve is arranged on a pipeline for communicating the nitrogen source with the acid inlet pipe.
Further, a pressure gauge is arranged on a pipeline connecting the upstream adapter and the sampling bottle; the acid inlet valve with between the upper reaches adapter the acid inlet pipe, with low reaches adapter with pipeline between the acid discharge valve, respectively with the one end intercommunication of two pressure release pipes, two the other end of pressure release pipe all with retrieve the jar intercommunication, two all be equipped with the relief valve on the pressure release pipe.
The utility model has the advantages that:
the utility model firstly utilizes nitrogen gas to carry out the tightness test, which is safe and low in cost; the original hydrogen fluoride sample of the sampling bottle can be flushed and replaced on line through the fresh hydrogen fluoride sample without being discharged on site, so that the probability of environmental pollution and personnel injury is reduced; the acid sample flows through the sampling bottle from front to back, so that the sampling bottle can be fully washed, the authenticity of the sample is ensured, the one-way liquid filling and discharging are avoided, the deviation of the sample in the liquid filling process is avoided, and the abnormal condition that the sample is not authentic or even the sample cannot be taken due to misoperation is avoided; in addition, in the whole sampling process, original acid samples in the sampling bottle, fresh acid samples used for flushing and acid samples subjected to pressure relief all enter the recovery tank, so that the acid samples are not discharged outside, and the pollution to the environment is reduced.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present embodiment.
In the figure: the device comprises a high-pressure HF storage tank 1, an upstream adapter 2, a sampling bottle 3, a downstream adapter 4, a recovery tank 5, an acid inlet pipe 6, an acid inlet valve 7, an upstream valve 8, a downstream valve 9, an acid discharge valve 10, a nitrogen source 11, a nitrogen valve 12, a pressure gauge 13, a pressure relief pipe 14 and a pressure relief valve 15.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
fig. 1 shows a sampling system of anhydrous hydrogen fluoride, which comprises a high-pressure HF storage tank 1, an upstream adapter 2, a sampling bottle 3, a downstream adapter 4 and a recovery tank 5;
the sampling bottle 3 is a container with openings at two ends, and the high-pressure HF storage tank 1, the upstream adapter 2, the sampling bottle 3, the downstream adapter 4 and the recovery tank 5 are sequentially connected in a sealing manner through pipelines;
be equipped with into acid valve 7 on the acid pipe 6 of connecting high pressure HF storage tank 1 and upstream adapter 2, be equipped with upstream valve 8 on the pipeline of connecting upstream adapter 2 and sampling bottle 3, be equipped with down stream valve 9 on the pipeline of connecting sampling bottle 3 and down stream adapter 4, be equipped with acid discharge valve 10 on the pipeline of intercommunication down stream adapter 4 and recovery jar 5. A pressure gauge 13 is arranged on a pipeline connecting the upstream adapter 2 and the sampling bottle 3; an acid inlet pipe 6 between the acid inlet valve 7 and the upstream adapter 2 and a pipeline between the downstream adapter 4 and the acid discharge valve 10 are respectively communicated with one ends of two pressure relief pipes 14, the other ends of the two pressure relief pipes 14 are both communicated with the recovery tank 5, and the two pressure relief pipes 14 are both provided with a pressure relief valve 15.
The gas outlet of the nitrogen source 11 is communicated with the acid inlet pipe 6 at the downstream of the acid inlet valve 7 through a pipeline; a nitrogen valve 12 is arranged on a pipeline which is communicated with the nitrogen source 11 and the acid inlet pipe 6.
The working process is as follows:
when the embodiment is used for sampling, firstly, nitrogen is utilized to carry out an airtight test through pressurization, namely, the acid inlet valve 7, the downstream valve 9 and the acid discharge valve 10 are all closed, then the nitrogen valve 12 and the upstream valve 8 are opened, when the pressure gauge 13 detects that the pressure value reaches 0.3Mpa, the nitrogen valve 12 is closed, soap water is sprayed at a connector, whether bubbles are generated or not is observed, if bubbles are generated, the pipeline connection is not tight, and the connection needs to be reconnected; if no bubble is generated, the sealing performance of the system is good.
Then, acid sample collection was performed: close relief valve 15, open low reaches valve 9, arrange sour valve 10, open into sour valve 7 and upper reaches valve 8 again, make fresh anhydrous hydrogen fluoride get into sampling bottle 3 in the high pressure HF storage tank 1, wash, replace original acid appearance in sampling bottle 3, because sampling bottle is very little, only need wash 2 ~ 5 minutes by fresh anhydrous hydrogen fluoride and can guarantee that sampling bottle 3 is fully washed.
And finally, finishing sampling: opening the two pressure release valves 15 respectively to release the pressure of the pipeline, and discharging redundant liquid in the pipeline into the recovery tank 5; when the manometer 13 detects that the pressure in the pipeline reaches the ordinary pressure, close two relief valves 15, pull down upstream adapter 2 and downstream adapter 4, accomplished whole sampling process promptly.
In the whole sampling process, the original acid sample in the sampling bottle 3 and the fresh acid sample for flushing all enter the recovery tank 5, so that the acid sample is not discharged outside, and the pollution to the environment is reduced.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. An anhydrous hydrogen fluoride sampling system is characterized by comprising a high-pressure HF storage tank, an upstream adapter, a sampling bottle, a downstream adapter and a recovery tank;
the sampling bottle is a container with openings at two ends, and the high-pressure HF storage tank, the upstream adapter, the sampling bottle, the downstream adapter and the recovery tank are sequentially connected in a sealing manner through pipelines;
connect the high pressure HF storage tank with be equipped with into acid valve on the acid pipe of upper reaches adapter, be connected the upper reaches adapter with be equipped with the upper reaches valve on the pipeline of sampling bottle, be connected the sampling bottle with be equipped with the low reaches valve on the pipeline of low reaches adapter, be in the intercommunication the low reaches adapter with be equipped with on the pipeline of recovery jar and arrange acid valve.
2. The anhydrous hydrogen fluoride sampling system according to claim 1, further comprising a nitrogen gas source, wherein a gas outlet of the nitrogen gas source is communicated with the acid inlet pipe downstream of the acid inlet valve through a pipeline; and a nitrogen valve is arranged on a pipeline for communicating the nitrogen source with the acid inlet pipe.
3. The anhydrous hydrogen fluoride sampling system of claim 2, wherein a pressure gauge is provided on a line connecting the upstream adapter and the sampling bottle; the acid inlet valve with between the upper reaches adapter the acid inlet pipe, with low reaches adapter with pipeline between the acid discharge valve, respectively with the one end intercommunication of two pressure release pipes, two the other end of pressure release pipe all with retrieve the jar intercommunication, two all be equipped with the relief valve on the pressure release pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921376606.XU CN210690158U (en) | 2019-08-22 | 2019-08-22 | Anhydrous hydrogen fluoride sampling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921376606.XU CN210690158U (en) | 2019-08-22 | 2019-08-22 | Anhydrous hydrogen fluoride sampling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210690158U true CN210690158U (en) | 2020-06-05 |
Family
ID=70903021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921376606.XU Active CN210690158U (en) | 2019-08-22 | 2019-08-22 | Anhydrous hydrogen fluoride sampling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210690158U (en) |
-
2019
- 2019-08-22 CN CN201921376606.XU patent/CN210690158U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111609306A (en) | Safe and reliable's multi-functional hydrogen discharge system | |
| CN104964159A (en) | Replacement method of ammonia gas in liquid ammonia storage tank | |
| CN113623537A (en) | Hydrogen discharging system and control method | |
| CN210690158U (en) | Anhydrous hydrogen fluoride sampling system | |
| CN104923527A (en) | Degreasing device and method applied to complex oxygen pipeline network | |
| CN209876496U (en) | Liquid ammonia holding vessel pipe-line system convenient to maintenance | |
| CN204461837U (en) | Recycle hydrogen sampler | |
| CN210603769U (en) | Ammonia leakage test device | |
| CN210033385U (en) | Ancient natural gas containing sulfur and ancient natural gas not containing sulfur co-production system | |
| CN204005219U (en) | A kind of cryogenic gas condensate recovery system | |
| CN217688075U (en) | Hydrogen fluoride sampling device | |
| CN202852420U (en) | Pressure release device of liquid carbon dioxide storage tank | |
| CN204879455U (en) | Atmospheric pressure drain | |
| CN215862867U (en) | Unload hydrogen system pipeline | |
| CN217356502U (en) | Semi-automatic switching busbar gas supply system for high-purity gas circuit of analytical instrument | |
| CN214251658U (en) | Closed sampler for wet chlorine | |
| CN206002349U (en) | A kind of detection oil taking apparatus of transformer | |
| CN216079313U (en) | Pressure reducing valve group device based on fuel cell automobile filling station | |
| CN212298526U (en) | Safe and reliable's multi-functional hydrogen discharge system | |
| CN212617587U (en) | Drainage device for high-pressure gas storage tank | |
| CN216386194U (en) | Liquid chlorine unloads automobile-used oil filling riser leak test system | |
| CN214224676U (en) | Negative pressure closed sampler | |
| CN218271565U (en) | Automatic sampling detection alarm system for chlorine content of raw material gas | |
| CN215931421U (en) | High-pressure hydrogen sampling device | |
| CN211493820U (en) | Compressed gas long pipe trailer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |