CN213180925U - Airtight analysis sampling safety guarantee system - Google Patents
Airtight analysis sampling safety guarantee system Download PDFInfo
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- CN213180925U CN213180925U CN202021813830.3U CN202021813830U CN213180925U CN 213180925 U CN213180925 U CN 213180925U CN 202021813830 U CN202021813830 U CN 202021813830U CN 213180925 U CN213180925 U CN 213180925U
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Abstract
The utility model discloses a gaseous airtight analysis sample safety guarantee system belongs to chemical industry equipment technical field. This system includes the introduction port, returns appearance mouth, nitrogen gas port and sample steel bottle, the introduction port passes through governing valve A and links to each other with the diaphragm pump, the nitrogen gas port passes through stop valve B and links to each other with the diaphragm pump, the diaphragm pump other end is connected with linkage valve C, and linkage valve C is the three-way valve, and its one end links to each other with linkage valve D, and the other end passes through the manometer and links to each other with needle valve E, needle valve E's the other end and sample steel bottle are connected, the other end of sample steel bottle passes through needle valve F and is connected with metal collapsible tube, and metal collapsible tube's the other end links to each other with linkage valve D, linkage. The utility model discloses a pipe-line system has realized airtight sample, and the poisonous and harmful gas in the equipment can not get into the atmosphere during the sample to avoid taking place environmental pollution and endangering health.
Description
Technical Field
The utility model relates to the technical field of chemical equipment, in particular to a closed analysis sampling safety guarantee system for a converter in a sulfuric acid production device in a suitable large-scale factory.
Background
The domestic sulfuric acid production process mainly comprises the steps of preparing acid by sulfur, preparing acid by hydrogen sulfide, preparing acid by pyrite, preparing acid by smelting flue gas and the like. In these processes, the composition of the gas entering the converter is predominantly SO2、SO3、O2And N2Etc. in which SO2And SO3All belong to highly hazardous media; the components of furnace gas in each section of the converter are chemically reacted under the action of a catalyst in the converter, so that the gas components in the converter need to be accurately and strictly analyzed.
At present, when most of domestic chemical engineering projects are sampled on site, a simple sampling mode is adopted, namely a main pipeline is additionally provided with a root blocking valve, and then a sampling blocking valve is connected. The sampling tool is typically a simple air bag or bladder and the displaced sample gas from the sampling process is vented directly to the atmosphere near the device. If the process gas to be sampled contains toxic and harmful components, the process gas will have adverse effects on the environment near the factory and also will cause harm to the health of the person who is analyzing the sample, and the sampling process has certain dangerousness.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a closed analysis sample safety guarantee system, when avoiding taking a sample in the converter to the sulphuric acid device, the poisonous and harmful gas of high temperature such as sulfur dioxide and sulfur trioxide etc. causes the injury to environment and health.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides an airtight analysis sample safety guarantee system, this system includes the introduction port, returns appearance mouth, nitrogen gas port and sample steel bottle, the introduction port passes through governing valve A and links to each other with the diaphragm pump, the nitrogen gas port passes through stop valve B and links to each other with the diaphragm pump, the diaphragm pump other end is connected with coordinated valve C, and coordinated valve C is the three-way valve, and its one end links to each other with coordinated valve D, and the other end passes through the manometer and links to each other with needle valve E, needle valve E's the other end is connected with the sample steel bottle, the other end of sample steel bottle passes through needle valve F and is connected with metal collapsible tube, and metal collapsible tube's the other end links to each other with coordinated.
The utility model discloses among the technical scheme: be provided with quick-operation joint A on the pipeline that manometer and needle valve E link to each other, quick-operation joint A includes interface A and interface B, interface A and interface B are connected.
The utility model discloses among the technical scheme: and a quick connector B is arranged on a pipeline connecting the needle valve F and the metal hose, and comprises a connector C and a connector D, and the connector C is connected with the connector D.
The utility model discloses among the technical scheme: the linkage valve C is a three-way ball valve.
The utility model discloses among the technical scheme: and a one-way valve G is arranged on a pipeline connecting the linkage valve D and the sample return port.
The utility model has the advantages that:
compared with the existing sampling scheme, the utility model discloses a to take a sample the steel bottle setting in one section airtight pipeline to sweep the pipeline through nitrogen gas and clear away residual gas in sample pipeline and the steel bottle, it is accurate to reach sample gas composition, and sample gas can not get into the atmosphere and cause the pollution to the environment, has ensured the healthy and life safety of analysis sampling personnel.
Drawings
Fig. 1 is a schematic view of a sampling device and a pipeline structure provided by the present invention;
FIG. 2 is a diagram of SO in a converter in a sulfuric acid plant2、SO3、O2And N2The analysis and sampling schematic diagram of the isothermal furnace gas;
the labels in the figure are: 1 is nitrogen gas mouth, 2 is the introduction port, 3 is governing valve A, 4 is stop valve B, 5 is the diaphragm pump, 6 is coordinated valve C, 7 is the manometer, 8 is quick-operation joint A, 9 is needle valve E, 10 is the sample steel bottle, 11 is needle valve F, 12 is quick-operation joint B, 13 is the metal collapsible tube, 14 is coordinated valve D, 15 is check valve G, 16 is the sample return mouth, 17 is interface A, 18 is interface B, 19 is interface C, 20 is interface D.
Detailed Description
The present invention will be further explained with reference to the following embodiments, but the scope of the present invention is not limited thereto:
as shown in fig. 1, a airtight analysis sample safety guarantee system, this system include introduction port 2, sample return port 16, nitrogen gas mouth 1 and sample steel bottle 10, introduction port 2 links to each other with diaphragm pump 5 through governing valve A3, nitrogen gas mouth 1 links to each other with diaphragm pump 5 through stop valve B4, the diaphragm pump 5 other end is connected with coordinated valve C6, and coordinated valve C6 is the three-way valve, and its one end links to each other with coordinated valve D14, and the other end passes through manometer 7 and links to each other with needle valve E9, the other end of needle valve E9 is connected with sample steel bottle 10, the other end of sample steel bottle 10 passes through needle valve F11 and is connected with metal collapsible tube 13, and metal collapsible tube 13's the other end links to each other with coordinated valve D14, coordinated valve D14's the other end links to each other.
Be provided with quick-operation joint A8 on the pipeline that manometer 7 and needle valve E9 link to each other, quick-operation joint A8 includes interface A17 and interface B18, interface A17 and interface B18 are connected.
The pipeline that needle valve F11 and metal collapsible tube 13 link to each other is provided with quick-operation joint B12, quick-operation joint B12 includes interface C19 and interface D20, interface C19 and interface D20 are connected. The linkage valve C6 is a three-way ball valve. And a one-way valve G is arranged on a pipeline connecting the linkage valve D14 and the sample return port 16.
The utility model discloses a sample process flow as follows:
as shown in FIG. 2, there are 8 sample ports and 1 sample return port on the converter.
First, the control valve a3 and the check valve G15 on the sampling line are normally open. The sampling steel cylinder 10 is connected with a port A17 and a port D20 which are arranged on the pipeline through a port B18 and a port C19 which are respectively arranged at the two ends. Then, linkage valve C6 is opened, at which time linkage valve D14 automatically opens.
During sampling, a valve on one sampling port pipeline is opened, and valves of other sampling ports are in a closed state.
Needle valve E9 and needle valve F11 were then opened in sequence for sampling. In order to eliminate the gas remaining in the cylinder and the gas accumulated in the line, the sampling time is appropriately increased, and after the sampling is completed, the needle valve E9 and the needle valve F11 are closed in sequence.
Then, after the pressure of the pressure gauge 7 is observed to be equal to the discharge pressure, the linkage valve C6 is closed, at the moment, the linkage valve D14 is automatically closed, and then the valve on the corresponding sampling pipeline and the valve on the sample return pipeline are closed. Then, the interface B18 is separated from the interface a17, the interface C19 is separated from the interface D20, the sampling steel cylinder 10 is taken down, and the sampling process is ended.
The nitrogen port is used for purging pipeline pipes and the like during equipment maintenance.
It should be noted that: the distances between all sampling lines and various valves and sampling system pipes should be as short as possible to avoid sample gas retention resulting in sample freshness due to too long sampling lines.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides a sample safety guarantee system of airtight analysis which characterized in that: the system comprises a sample inlet (2), a sample return port (16), a nitrogen port (1) and a sampling steel cylinder (10), the sample inlet (2) is connected with a diaphragm pump (5) through an adjusting valve A (3), the nitrogen port (1) is connected with a diaphragm pump (5) through a stop valve B (4), the other end of the diaphragm pump (5) is connected with a linkage valve C (6), the linkage valve C (6) is a three-way valve, one end of the valve is connected with a linkage valve D (14), the other end is connected with a needle valve E (9) through a pressure gauge (7), the other end of needle valve E (9) is connected with sample steel bottle (10), the other end of sample steel bottle (10) passes through needle valve F (11) and is connected with metal collapsible tube (13), and the other end of metal collapsible tube (13) links to each other with coordinated valve D (14), the other end and the sample mouth (16) of returning of coordinated valve D (14) link to each other.
2. The containment analysis sampling safety assurance system of claim 1, wherein: be provided with quick-operation joint A (8) on the pipeline that manometer (7) and needle valve E (9) link to each other, quick-operation joint A (8) are including interface A (17) and interface B (18), interface A (17) and interface B (18) are connected.
3. The containment analysis sampling safety assurance system of claim 1, wherein: the quick connector B (12) is arranged on a pipeline connected with the needle valve F (11) and the metal hose (13), the quick connector B (12) comprises a connector C (19) and a connector D (20), and the connector C (19) is connected with the connector D (20).
4. The containment analysis sampling safety assurance system of claim 1, wherein: the linkage valve C (6) is a three-way ball valve.
5. The containment analysis sampling safety assurance system of claim 1, wherein: and a one-way valve G (15) is arranged on a pipeline connecting the linkage valve D (14) and the sample return port (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021813830.3U CN213180925U (en) | 2020-08-26 | 2020-08-26 | Airtight analysis sampling safety guarantee system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021813830.3U CN213180925U (en) | 2020-08-26 | 2020-08-26 | Airtight analysis sampling safety guarantee system |
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| CN213180925U true CN213180925U (en) | 2021-05-11 |
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| CN202021813830.3U Active CN213180925U (en) | 2020-08-26 | 2020-08-26 | Airtight analysis sampling safety guarantee system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894545A (en) * | 2022-05-17 | 2022-08-12 | 重庆兴发金冠化工有限公司 | Closed sampling device |
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2020
- 2020-08-26 CN CN202021813830.3U patent/CN213180925U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894545A (en) * | 2022-05-17 | 2022-08-12 | 重庆兴发金冠化工有限公司 | Closed sampling device |
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