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Foam generator

A foam generator and agitator technology, applied in chemical instruments and methods, mixers, mixing methods, etc., can solve the problems of large foam size, instability, non-uniform foam, etc., and achieve fine foam, stable foam, gas-liquid well-mixed effect

Active Publication Date: 2014-12-03
ANTON OILFIELD SERVICES (GRP) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned foam generators all have shortcomings such as incomplete mixing, large foam size, uneven and unstable foam, and high requirements on flow rate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 , figure 2 with image 3 As shown, figure 1 Is a structural cross-sectional view of a preferred embodiment of the foam generator of the present invention; figure 2 It is a schematic diagram of the structure of the forward rotating stirrer (reverse rotating stirrer) of the foam generator of the present invention; image 3 for figure 2 A-A cross-sectional view. The foam generator includes: a mother pipe 1 with an inlet 2 at the front end and an outlet 3 at the rear end; an air distribution pipe 15 with a liquid inlet 8 and an air inlet 9 at one end, and the other end extends from the inlet 2 of the mother pipe 1 In the mother pipe 1, there are injection holes 6 on the pipe wall and end surface 5 of the air distribution pipe 15 in the mother pipe to form the air distribution section 4. The air distribution section 4 and the junction of the liquid inlet 8 and the air inlet 9 form a diversion In section 7, the air distribution pipe 15 is arranged coaxially ...

Embodiment 2

[0027] This embodiment is based on the first embodiment, and also includes a baffle agitator, which combines figure 1 with Figure 4 , Figure 4 It is a schematic diagram of the internal structure of the baffle agitator of the foam generator of the present invention. The baffle agitator is connected with the outlet at the rear end of the mother pipe through a union. The baffle agitator includes a tube body 16 and a baffle plate arranged in the tube body. The partition is a semicircular partition 17, the arc side of the semicircular partition 17 is fixed on the inner wall of the tube body, and the included angle between the straight side of the semicircular partition 17 and the axis of the tube body is 75 degrees, and the semicircular partitions 17 are arranged in the same direction and offset by 90 degrees. In this embodiment, the first four partitions form a reverse spiral, and the last four partitions form a positive spiral. The partition shown by the broken line in the fig...

Embodiment 3

[0029] Combine figure 1 , Figure 4 with Figure 5 , Figure 5 It is a structural schematic diagram of the spiral partition of the partition agitator of the foam generator of the present invention. This embodiment is different from the second embodiment only in that the partition is a spiral partition 18. The spiral partition includes alternately arranged positive spiral partitions and reverse spiral partitions. The partition can be set in the manner of positive spiral partition-reverse spiral partition-positive spiral partition-reverse spiral partition, or it can be set according to positive spiral partition-positive spiral partition-reverse spiral partition Diaphragm-set in the way of reverse spiral diaphragm.

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Abstract

The invention discloses a foam generator, which comprises a mother pipe, a gas distribution pipe and a spiral stirrer group, wherein the mother pipe is provided with an inlet at a front end and an outlet at a back end; one end of the gas distribution pipe is provided with a liquid inlet and a gas inlet, and the other end of the gas distribution pipe enters the mother pipe through the inlet of the mother pipe; the pipe wall and the end face of the gas distribution pipe in the mother pipe are provided with spraying holes for forming a gas distribution section; a diversion section is formed between the gas distribution section as well as the intersection of the liquid inlet and the gas inlet; the gas distribution pipe and the mother pipe are arranged coaxially; and the spiral stirrer group is arranged in the mother pipe, is positioned behind the gas distribution pipe, and consists of a positive rotation stirrer and a negative rotation stirrer which are arranged alternately. Due to the adoption of the foam generator, gas and liquid can be mixed more uniformly, foam is finer, and formed foam is stable.

Description

Technical field [0001] The present invention relates to a device for generating foam, especially a foam generator for generating foam in the field of petroleum industry. Background technique [0002] There are many types of foam generators available, such as jet type, concentric tube type, solenoid type, turbine type, etc. Such as the first type of jet foam generator: It includes two cavities with different diameters. The gas and liquid two-phase fluid enters the large-diameter cavity through a small-diameter cavity at a high speed. The phases are dispersed and mixed to form foam. The second type of concentric tube foam generator: includes a section of small diameter tube extending into a large diameter mother tube to form a concentric tube. The small diameter concentric tube in the mother tube cavity is distributed with a large number of small holes. The liquid two-phase fluid is sprayed to the mother tube in the form of a jet through the small holes at a high speed, and is qu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F13/10B01F7/10B01F3/04B01F27/73
Inventor 郝建刚谌育林
Owner ANTON OILFIELD SERVICES (GRP) LTD