CN204281694U - The hydrogen sulfide that low pressure is separated diesel oil deviates from device - Google Patents
The hydrogen sulfide that low pressure is separated diesel oil deviates from device Download PDFInfo
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- CN204281694U CN204281694U CN201420725667.3U CN201420725667U CN204281694U CN 204281694 U CN204281694 U CN 204281694U CN 201420725667 U CN201420725667 U CN 201420725667U CN 204281694 U CN204281694 U CN 204281694U
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- diesel oil
- low pressure
- air
- hydrogen
- gate valve
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Abstract
The hydrogen sulfide that the utility model discloses a kind of low pressure separation diesel oil deviates from device, comprise low pressure and be separated diesel oil stripping tower, reformer and PSA device for producing hydrogen, be connected with the byproduct hydrogen that reformer can be produced bottom low pressure separation diesel oil stripping tower or/and the hydrogen that PSA device for producing hydrogen is produced delivers to the air feeder in low pressure separation diesel oil stripping tower.Described air feeder comprises outlet side and is separated the air-supply duct that diesel oil stripping tower intracavity bottom is communicated with low pressure, air-supply duct is serially connected with the first gate valve, flow measurement device and flow regulation device; The inlet end of air-supply duct is communicated with the air outlet of PSA device for producing hydrogen by the first air inlet branch road, and the first air inlet branch road is serially connected with the second gate valve; The inlet end of air-supply duct is also communicated with the hydrogen discharge mouth of reformer by the second air inlet branch road, the second air inlet branch road is serially connected with the 3rd gate valve.The use of this device both can remove the hydrogen sulfide in diesel oil, did not make diesel oil moisture content again, can also save energy.
Description
Technical field
The hydrogen sulfide that the utility model relates to a kind of low pressure separation diesel oil deviates from device.
Background technology
In refining of petroleum industry, the major function that low pressure is separated diesel oil stripping tower is separation of material component, air lift is a physical process, it adopts a gaseous media destroy Primordial Qi liquid biphase equilibrium and set up a kind of new vapor liquid equilibrium state, a certain component in solution is desorbed because dividing potential drop reduces, thus reaches the object of separate substance.By passing into steam at the bottom of tower, blowing and carrying hydrogen sulfide, reach the object of producing low-sulfur cleaning product.Do not reach design requirements because low pressure is separated diesel oil stripping tower feeding temperature, column bottom temperature is at 220 DEG C, and the refined diesel oil band water of production is serious, and product is muddy, has a strong impact on quality product.
In order to remove the moisture in diesel oil, adopt diesel oil coalescer to diesel oil through carrying out processed, because the problems such as filter core work-ing life, equipment quality not only add productive expense, and not satisfactory to the removal effect of bavin W/O, product diesel oil opacity does not have basic improvement after coalescer.
Moisture in diesel oil, mainly from the steam in stripping process, if change stripping fluid namely replace steam with other gas, then thoroughly can be stopped the source of moisture, make moisture-free in diesel oil.The utility model is made based on above-mentioned design philosophy just.
Utility model content
The hydrogen sulfide that the technical problems to be solved in the utility model is to provide a kind of low pressure separation diesel oil deviates from device.
In order to solve the problems of the technologies described above, the hydrogen sulfide that the utility model provides a kind of low pressure separation diesel oil of following structure deviates from device, comprise low pressure and be separated diesel oil stripping tower, reformer and PSA device for producing hydrogen, its constructional feature is that low pressure is separated the byproduct hydrogen that to be connected with bottom diesel oil stripping tower and reformer can be produced or/and hydrogen that PSA device for producing hydrogen is produced delivers to low pressure be separated air feeder in diesel oil stripping tower.
Described air feeder comprises outlet side and is separated the air-supply duct that diesel oil stripping tower intracavity bottom is communicated with low pressure, by apart from its outlet side, order is from the close-by examples to those far off serially connected with the first gate valve, flow measurement device and flow regulation device successively on air-supply duct; The inlet end of air-supply duct is communicated with the air outlet of PSA device for producing hydrogen by the first air inlet branch road, and the first air inlet branch road is serially connected with the second gate valve; The inlet end of air-supply duct is also communicated with the hydrogen discharge mouth of reformer by the second air inlet branch road, the second air inlet branch road is serially connected with the 3rd gate valve.
Described flow regulation device is the electric flow setting device that the flow signal sent according to flow measurement device regulates opening degree size automatically.
Described flow measurement device comprises the 4th gate valve, thermal type gas quality flow meter and the 5th gate valve that are serially connected successively.
Described flow regulation device comprises the 6th gate valve, electric flow control valve and the 7th gate valve that are serially connected successively.
Described air-supply duct is communicated with the first secondary branch road and ventilating branch road with the second pair that flow regulation device is arranged in parallel of ventilate be arranged in parallel with flow measurement device; First secondary ventilation branch road is serially connected with the 8th gate valve, the second secondary ventilation branch road is serially connected with the 9th gate valve.
The utility model is sent into low pressure by the hydrogen that the byproduct hydrogen setting up air feeder and produced by reformer and PSA device for producing hydrogen are produced and is separated diesel oil stripping tower and is used for blowing and carries hydrogen sulfide, just can arrive production object, thus structure is simple, and PSA device for producing hydrogen and reformer are the necessary equipments in refining of petroleum, and therefore cost of manufacture of the present utility model is also lower.
The utility model not only structure is simple, and cost of manufacture is low, and can bring following beneficial effect.
1, steam saving cost, increases the benefit.Low pressure separation diesel oil stripping tower per hour needs consumes 1.0Mpa steam about 0.4 ton, and the price of steam is approximately 220 yuan/ton, only this estimation, and the annual steam cost saved is 0.4 ton × 8000 hours × 220 yuan=704000 yuan.Hydrogen of reforming is then the byproduct in petroleum refining process, without the need to extra investment.
2, discharge of wastewater is reduced, protection of the environment.The steam that low pressure separation diesel oil stripping tower passes into delivers to sour water treatment system via dissolving partial vulcanization hydrogen after the cooling of tower top air cooler as outside sour water, adds the cost of sour water reprocessing, also may to environment.Hydrogen of reforming is then the stripping fluid of clean and effective, there is not the pollution hidden trouble to environment.
3, air cooling load is reduced, brownout.Adopt reformation hydrogen, the cold load of stripping tower head space can also be reduced fully, utilize the cold rear temperature of frequency conversion air cooling electric machine control, reach energy-saving and cost-reducing object.
4, thermal load at the bottom of tower is reduced, fuel economy gas.After adopting reformation hydrogen stripping, stripping tower bottom feeding temperature can be reduced, reduce the heat exchange load of diesel feed interchanger, reduce process furnace load, fuel economy gas.
5, control oil product moisture, ensure the quality of products.After adopting reformation hydrogen stripping, effect is exactly that oil product after processing is not moisture the most intuitively, maintains the transparency of oil product, has both been stripped of hydrogen sulfide and has also ensure that the quality of product and the clean of outward appearance.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail:
Fig. 1 is structural principle schematic diagram of the present utility model.
Embodiment
The hydrogen sulfide that low pressure is as shown in Figure 1 separated diesel oil deviates from device, comprise low pressure and be separated diesel oil stripping tower 1, reformer 2 and PSA device for producing hydrogen 3, above-mentionedly be all the existing installation being actually used in production, its structure and in petroleum refining process role all repeat no more at this.Being connected with bottom low pressure separation diesel oil stripping tower 1 can to the air feeder of feed hydrogen in it.Described air feeder comprises outlet side and is separated the air-supply duct 4 that diesel oil stripping tower 1 intracavity bottom is communicated with low pressure, by apart from its outlet side, order is from the close-by examples to those far off serially connected with the first gate valve 5, flow measurement device and flow regulation device successively on air-supply duct 4; The inlet end of air-supply duct 4 is communicated with the air outlet of PSA device for producing hydrogen 3 by the first air inlet branch road 7, the first air inlet branch road 7 is serially connected with the second gate valve 6; The inlet end of air-supply duct 4 is also communicated with the hydrogen discharge mouth of reformer 2 by the second air inlet branch road 8, the second air inlet branch road 8 is serially connected with the 3rd gate valve 9.Under general situation, the byproduct hydrogen that reformer 2 produces can meet the demand that low pressure is separated diesel oil stripping tower 1, during normal use, the second gate valve 6 is in closing condition, the 3rd gate valve 9 is in opened condition, if the byproduct hydrogen that reformer 2 produces can not be satisfied the demand, then can open the second gate valve 6, carry out supplementary air feed by PSA device for producing hydrogen 3, if reformer 2 can not normally use, then close the 3rd gate valve 9, all carry out air feed by PSA device for producing hydrogen 3, to maintain normal production.
Above-mentioned flow regulation device is the electric flow setting device that the flow signal sent according to flow measurement device regulates opening degree size automatically.After the flow signal that flow measurement device sends received by the pilot circuit of electric flow setting device, pilot circuit makes electric flow setting device carry out action, particularly: the higher limit that tolerance exceedes setting range if return, then electric flow setting device reduces its opening degree, if return the lower value that tolerance exceedes setting range, then electric flow setting device strengthens its opening degree.Above-mentioned flow measurement device comprises the 4th gate valve 10, thermal type gas quality flow meter 11 and the 5th gate valve 12 that are serially connected successively; Above-mentioned flow regulation device comprises the 6th gate valve 13, electric flow control valve 14 and the 7th gate valve 15 that are serially connected successively.Thermal type gas quality flow meter 11 is electrically connected with the pilot circuit of electric flow control valve 14, and above-mentioned pilot circuit is well known to those skilled in the art, and does not repeat them here.
For the ease of maintenance and maintenance, do not affect the carrying out of production when namely electric flow control valve 14 and thermal type gas quality flow meter 11 being safeguarded or changed, described air-supply duct 4 is communicated with the first secondary branch road 16 and ventilating branch road 17 with the second pair that flow regulation device is arranged in parallel of ventilate be arranged in parallel with flow measurement device; First secondary ventilation branch road 16 is serially connected with on the 8th gate valve 18, second pair ventilation branch road 17 and is serially connected with the 9th gate valve 19.
Thermal type gas quality flow meter 11 in flow measurement device also can replace with pointer-type or digital display type under meter, electric flow control valve 14 in flow regulation device also can adopt hand flow regulating valve to replace, and then carries out Flow-rate adjustment by direct surveillance's fluctuations in discharge.
Claims (6)
1. the hydrogen sulfide of a low pressure separation diesel oil deviates from device, comprise low pressure and be separated diesel oil stripping tower (1), reformer (2) and PSA device for producing hydrogen (3), it is characterized in that low pressure is separated diesel oil stripping tower (1) bottom and is connected with the byproduct hydrogen that reformer (2) can be produced or/and the hydrogen that PSA device for producing hydrogen (3) is produced delivers to the air feeder in low pressure separation diesel oil stripping tower (1).
2. the hydrogen sulfide that low pressure as claimed in claim 1 is separated diesel oil deviates from device, it is characterized in that described air feeder comprises outlet side and is separated the air-supply duct (4) that diesel oil stripping tower (1) intracavity bottom is communicated with low pressure, by order is from the close-by examples to those far off serially connected with the first gate valve (5), flow measurement device and flow regulation device successively apart from its outlet side on air-supply duct (4); The inlet end of air-supply duct (4) is communicated with the air outlet of PSA device for producing hydrogen (3) by the first air inlet branch road (7), and the first air inlet branch road (7) is serially connected with the second gate valve (6); The inlet end of air-supply duct (4) is also communicated with the hydrogen discharge mouth of reformer (2) by the second air inlet branch road (8), the second air inlet branch road (8) is serially connected with the 3rd gate valve (9).
3. the hydrogen sulfide that low pressure as claimed in claim 2 is separated diesel oil deviates from device, it is characterized in that described flow regulation device is the electric flow setting device that the flow signal sent according to flow measurement device can regulate opening degree size automatically.
4. the hydrogen sulfide that low pressure as claimed in claim 3 is separated diesel oil deviates from device, it is characterized in that described flow measurement device comprises the 4th gate valve (10), thermal type gas quality flow meter (11) and the 5th gate valve (12) be serially connected successively.
5. the hydrogen sulfide that low pressure as claimed in claim 3 is separated diesel oil deviates from device, it is characterized in that described flow regulation device comprises the 6th gate valve (13), electric flow control valve (14) and the 7th gate valve (15) be serially connected successively.
6. the hydrogen sulfide that low pressure as described in claim arbitrary in claim 2-5 is separated diesel oil deviates from device, it is characterized in that described air-supply duct (4) is communicated with the first secondary branch road (16) and ventilating branch road (17) with the second pair that flow regulation device is arranged in parallel of ventilate be arranged in parallel with flow measurement device; First secondary ventilation branch road (16) is serially connected with the 8th gate valve (18), the second secondary ventilation branch road (17) is serially connected with the 9th gate valve (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725667.3U CN204281694U (en) | 2014-11-28 | 2014-11-28 | The hydrogen sulfide that low pressure is separated diesel oil deviates from device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725667.3U CN204281694U (en) | 2014-11-28 | 2014-11-28 | The hydrogen sulfide that low pressure is separated diesel oil deviates from device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204281694U true CN204281694U (en) | 2015-04-22 |
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ID=52864877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420725667.3U Expired - Fee Related CN204281694U (en) | 2014-11-28 | 2014-11-28 | The hydrogen sulfide that low pressure is separated diesel oil deviates from device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204281694U (en) |
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2014
- 2014-11-28 CN CN201420725667.3U patent/CN204281694U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151128 |