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Device for adding fuel additives to steam-injection boiler and adding method

A fuel additive and steam injection boiler technology, which is applied in the field of heavy oil thermal recovery, can solve problems such as reducing fuel combustion efficiency, and achieve the effects of improving boiler thermal efficiency, improving combustion efficiency, and reducing fuel viscosity

Active Publication Date: 2014-03-05
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of static sedimentation and natural mixing makes it difficult to mix the fuel additives with the fuel evenly, thus reducing the combustion efficiency of the fuel

Method used

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  • Device for adding fuel additives to steam-injection boiler and adding method
  • Device for adding fuel additives to steam-injection boiler and adding method
  • Device for adding fuel additives to steam-injection boiler and adding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1 is a fuel additive adding device for a steam injection boiler provided by the present invention. figure 1 It is a schematic diagram of the structure of the steam injection boiler fuel additive adding device and the connection relationship of each component in Embodiment 1 of the present invention. like figure 1 As shown, the steam injection boiler fuel additive adding device provided by the present invention includes a medicine box 1, a proportional pump 2, an agitator 3, and a connecting pipeline 5, wherein:

[0040]The medicine box 1 can be used to contain fuel additives and diluents, and the medicine box 1 can be a box structure such as a cuboid or a cylinder. The medicine box 1 includes a medicine filling port 101 and a medicine outlet 102 . The dosing port 101 can be used for adding fuel additives and diluents. The medicine filling port 101 can be arranged on the top or the upper half of the side wall of the medicine box 1 . The drug outlet 102 can be...

Embodiment 2

[0052] Embodiment 2 is an embodiment of the second fuel additive adding device for a steam injection boiler provided by the present invention. Figure 5 It shows the structure of the fuel additive adding device for the steam injection boiler in Embodiment 2 of the present invention and the connection relationship of each component. like Figure 5 As shown, the structure of the steam injection boiler fuel additive addition device provided in Embodiment 2 of the present invention and the connection relationship of each component are the same as in Embodiment 1, the difference is that the steam injection boiler fuel additive addition device also includes an atomization device 6, wherein:

[0053] The atomizing device 6 can be used to atomize the fuel additive, and the structure of the atomizing device 6 includes an input end for inputting the fuel additive and an output end for spraying the fuel additive. The input end 6 of the atomization device is connected to the output port ...

Embodiment 3

[0093] Example 3 is an example of using the method of the present invention to uniformly add the fuel additive to the fuel.

[0094] There are 24 tons of liquid fuel that need to be burned in the furnace of the steam injection boiler within 24 hours. The boiler has a thermal efficiency of 78% before fuel additives are used. The fuel additive used in Example 3 is a diesel oil saver. The fuel additive is in the form of solid powder, bottled, 70 grams per bottle, and the addition ratio of the fuel additive to fuel is 70 grams per ton. According to the above calculation, 24 bottles of the fuel additive are needed to burn the 24 tons of liquid fuel. There is no special requirement on the dilution ratio of the fuel additive, and it can be melted in solid powder form. In order to fully mix the fuel additive with the fuel, the mixing ratio of the fuel additive and the diluent in this embodiment is: bottle / 10L, that is, 70 g / 10 liters. The diluent adopts diesel oil with a temperatu...

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Abstract

The invention provides a device for adding fuel additives to a steam-injection boiler and an adding method. The adding device comprises an additive box, a proportioning pump, a stirrer and a connecting pipeline, wherein the additive box is of a box body structure and comprises an additive adding port and an additive discharging port; the stirrer passes through an opening formed in the top part of the additive box; a control part of the stirrer is positioned outside the additive box and is fixedly connected with the additive box at the opening in the top part of the additive box; blades and a connecting shaft of the stirrer are positioned on the inner side of the additive box; the proportioning pump comprises an input port and an output port; the input port of the proportioning pump is connected with the additive discharging port of the additive box; the output port of the proportioning pump is connected with one end of the connecting pipeline; the other end of the connecting pipe is connected with the steam-injection boiler. The adding device and the adding method provided by the invention have the advantages that a manual adding mode is replaced, so that the technical problem that non-uniform mixing of fuel and the fuel additives is easily caused due to the manual adding mode is solved, the workload of operators is also reduced and the use efficiency of the fuel additives is improved.

Description

technical field [0001] The invention relates to the field of heavy oil thermal recovery, in particular to a fuel additive adding device and method for a steam injection boiler. Background technique [0002] Petroleum exists in naturally formed oil fields, and its extraction technology varies with the type of oil field and the characteristics of crude oil. Crude oil with high asphalt colloid content and low wax content is called heavy oil. Due to the high viscosity of heavy oil, it is difficult to flow, which makes the development difficult. Heavy oil occupies a large proportion in the world's oil and gas resources, and countries all over the world pay more and more attention to the development of heavy oil fields. At present, heavy oil thermal recovery technology is mainly used in the development of heavy oil fields at home and abroad, mainly by increasing the temperature of the oil layer and reducing the viscosity of heavy oil, thereby reducing the difficulty of heavy oil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F7/18B01F15/02F23K5/00F23K5/02
Inventor 张红朋许宝燕李娟娟马庆许玲彬邵恒玉陈楠
Owner PETROCHINA CO LTD
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