CN201704235U - Oxygen feeding device - Google Patents
Oxygen feeding device Download PDFInfo
- Publication number
- CN201704235U CN201704235U CN2010202138704U CN201020213870U CN201704235U CN 201704235 U CN201704235 U CN 201704235U CN 2010202138704 U CN2010202138704 U CN 2010202138704U CN 201020213870 U CN201020213870 U CN 201020213870U CN 201704235 U CN201704235 U CN 201704235U
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- Prior art keywords
- oxygen
- variable valve
- pipeline
- valve
- bypass
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Abstract
The utility model relates to an oxygen feeding device, comprising a reburner and an oxygen preheater which are connected via a pipeline. The returner is connected with a steam pipeline and a raw material gas pipeline, the oxygen preheater is connected with an oxygen input pipeline, the oxygen input pipeline is provided with a first adjusting valve and a second adjusting valve convenient for fine adjustment, and the second adjusting valve is parallelly connected with the first adjusting valve. A valve pipeline on an original oxygen input pipeline is additionally provided with a small-flow valve bypass, namely a DN50 bypass, and the small bypass is utilized for oxygen feeding when in starting of the device, thereby increasing precision, being capable of keeping flow stable and controlling oxygen adding quantity better. As small-flow oxygen is heated easily, the oxygen feeding success rate can be controlled accurately.
Description
Technical field
The utility model relates to the chemical feedstocks preparation field, relates in particular to the throwing oxygen device in a kind of methanol process.
Background technology
Partial oxidation operation throwing oxygen process is a very important process during present methanol industry is produced, dropping into steam to system earlier heats up, at last with the unstripped gas input when temperature rises to more than 500 ℃, can in converter, drop into pressure 2.8MPa, the pure oxygen that temperature is 170 ℃.H in the inner unstripped gas of converter
2, CH
4More than 500 ℃ the time, meeting oxygen can burn.If this throws the not success of oxygen process.Oxygen is burning not, or burns insufficient and make oxygen enter next equipment or pipeline, runs into the danger that unstripped gas has the blast of producing.
Therefore, partial oxidation process is a unusual critical step during present methanol industry is produced, and throws the oxygen device as shown in Figure 1.Throw oxygen valve in the conventional throwing oxygen mode and eat that to sweep steam valve all are big flow control valves---the DN100 variable valve.This kind thrown the oxygen mode, and the one, variable valve is too big, can't carry out a small amount of and throw oxygen, instability; The 2nd, purge steam close after, winter, valve can produce freeze injury, caused and can't operate; The 3rd, oxygen has little time preheating, and it is unfavorable to cause the burner protection, and throwing oxygen success ratio is relatively low.
The utility model content
The utility model provides a kind of and can accurately control the throwing oxygen device of throwing the oxygen amount at above-mentioned the deficiencies in the prior art.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of throwing oxygen device, include the converter and the oxygen preheat device of pipe connection, be connected with steam-pipe, unstripped gas pipeline on the described converter, be connected with the oxygen input tube road on the described oxygen preheat device, be provided with first variable valve on this oxygen input tube road, also be provided with second variable valve of being convenient to finely tune on the described oxygen input tube road, described second variable valve and first variable valve are for being connected in parallel.
Preferably, described second variable valve is littler than the flow of first variable valve.
Preferably, described steam-pipe is provided with two variable valve that are connected in parallel: the 3rd variable valve and the 4th variable valve.
Preferably, described the 3rd variable valve is different with the flow of the 4th variable valve.
Preferably, described the 4th variable valve is a manual modulation valve.
Compared with prior art, the advantage that the utlity model has: the valve line on original oxygen input tube road adds the valve bypass of a low discharge---DN50 bypass, uses little bypass when driving to throw oxygen, and precision improves, effectively dominant discharge is stable, can better control oxygen-adding amount; Because the oxygen of low discharge is heated easily, can reaches accurately control and throw the oxygen success ratio.
The utility model also adds a DN25 bypass at the pipeline that purges steam in addition, guarantees that bypass has certain aperture, both can guarantee that oxygen gas flow rate effectively protects burner, guarantees that again freeze injury does not take place winter operation.
Description of drawings
Fig. 1 is existing throwing oxygen apparatus structure synoptic diagram;
Fig. 2 is a structural representation of the present utility model;
Description of reference numerals:
The 1-steam-pipe; 11-the 3rd variable valve; 12-the 4th variable valve;
2-unstripped gas pipeline; The 21-converter;
The connecting tube of 3-converter and oxygen preheat device; 31-first variable valve; 32-oxygen preheat device; 33-second variable valve.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
A kind of throwing oxygen device as shown in Figure 2, include converter 21 and oxygen preheat device 32 that pipeline 3 connects, be connected with steam-pipe 1, unstripped gas pipeline 2 on the described converter 21, be connected with the oxygen input tube road on the described oxygen preheat device 32, on this oxygen input tube road, be provided with first variable valve 31, also be provided with second variable valve of being convenient to finely tune 33 on the described oxygen input tube road, described second variable valve 33 and first variable valve 31 are for being connected in parallel; For ease of the inlet of control oxygen, the flow of throughput ratio first variable valve 31 of second variable valve 33 is little.
That is to say the DN100 variable valve on the oxygen input tube road in existing throwing oxygen device, add a DN50 bypass, use the DN50 bypass when driving to throw oxygen, precision improves, and effectively dominant discharge is stable, can better control oxygen-adding amount; Because the oxygen of low discharge is heated easily, can reaches accurately control and throw the oxygen success ratio.
In the throwing oxygen device shown in Figure 2 in addition, steam-pipe 1 is provided with two variable valve that are connected in parallel: the 3rd variable valve 11 and the 4th variable valve 12.The 4th variable valve 12 can be controlled low discharge steam, as manual modulation valve DN25 valve; And the 3rd variable valve 11 dominant discharge are bigger, as the DN100 valve; On original pipeline that purges steam, add a DN25 bypass, can control enter converter quantity of steam seldom, can disregard; can be very not big influence ratio of carbon-hydrogen; guarantee that bypass has certain aperture, both can guarantee that oxygen gas flow rate effectively protects burner, guarantee that again freeze injury does not take place winter operation.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. throw the oxygen device for one kind, include the converter and the oxygen preheat device of pipe connection, be connected with steam-pipe, unstripped gas pipeline on the described converter, be connected with the oxygen input tube road on the described oxygen preheat device, on this oxygen input tube road, be provided with first variable valve, it is characterized in that: also be provided with second variable valve of being convenient to finely tune on the described oxygen input tube road, described second variable valve and first variable valve are for being connected in parallel.
2. throwing oxygen device as claimed in claim 1 is characterized in that: described second variable valve is littler than the flow of first variable valve.
3. throwing oxygen device as claimed in claim 1 is characterized in that: described steam-pipe is provided with two variable valve that are connected in parallel: the 3rd variable valve and the 4th variable valve.
4. throwing oxygen device as claimed in claim 3 is characterized in that: described the 3rd variable valve is different with the flow of the 4th variable valve.
5. as claim 3 or 4 described throwing oxygen devices, it is characterized in that: described the 4th variable valve is a manual modulation valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202138704U CN201704235U (en) | 2010-05-31 | 2010-05-31 | Oxygen feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202138704U CN201704235U (en) | 2010-05-31 | 2010-05-31 | Oxygen feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201704235U true CN201704235U (en) | 2011-01-12 |
Family
ID=43441389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202138704U Expired - Fee Related CN201704235U (en) | 2010-05-31 | 2010-05-31 | Oxygen feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201704235U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112762432A (en) * | 2021-02-05 | 2021-05-07 | 西安热工研究院有限公司 | Gaseous high-pressure-increasing hydrophobic accurate oxygenation device and oxygenation method |
| CN115448397A (en) * | 2022-09-29 | 2022-12-09 | 中国科学院武汉病毒研究所 | Continuous wastewater treatment device and method with accurate and stable temperature control |
-
2010
- 2010-05-31 CN CN2010202138704U patent/CN201704235U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112762432A (en) * | 2021-02-05 | 2021-05-07 | 西安热工研究院有限公司 | Gaseous high-pressure-increasing hydrophobic accurate oxygenation device and oxygenation method |
| CN115448397A (en) * | 2022-09-29 | 2022-12-09 | 中国科学院武汉病毒研究所 | Continuous wastewater treatment device and method with accurate and stable temperature control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20140531 |