Physical defoaming device for chemical flooding sewage treatment in oil field operation
By introducing pressure regulating and stirring components into the wastewater treatment unit for chemical flooding in oilfield operations, and utilizing aluminum alloy filter plates and rotating stirring blades to disrupt the surface tension of the liquid, the problem of foam generation caused by insoluble gases was solved, achieving a more efficient defoaming effect.
Patent Information
- Application Number
- CN202520171703.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-26
AI Technical Summary
Existing physical defoaming devices used for chemical flooding wastewater treatment in oilfield operations only remove surface foam and fail to effectively remove insoluble gases, resulting in foam still being generated during wastewater flow and reducing defoaming efficiency.
By employing a pressure regulating component and a stirring component, a negative pressure is created through a vacuum pump. Corrosion-resistant aluminum alloy filter plates and filter rings are used to disrupt the surface tension of the liquid. Combined with rotating stirring blades to increase centrifugal force, the foam structure is destroyed, achieving efficient gas discharge.
It effectively reduces foam generation when sewage flows under normal atmospheric pressure, improves defoaming efficiency, and ensures efficient sewage treatment.
Smart Images
Figure CN223804909U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of petroleum chemical industry, specifically is a kind of physical defoaming device for oilfield operation chemical flooding sewage treatment. BACKGROUND
[0002] In oilfield operation, the treatment of chemical flooding sewage is an important link, aiming at removing harmful substances in sewage, protecting the environment and recycling water resources, including microbial treatment, oil removal by sedimentation separation and physical defoaming, etc., among which the physical defoaming method is an effective pretreatment method, mainly used for removing foam in sewage for subsequent deep purification, and a physical defoaming device is needed for defoaming in this process.
[0003] At present, the physical defoaming device for chemical flooding sewage treatment in oilfield operation only removes the foam on the surface, but there are still many insoluble gases in the sewage, and foam will still be generated during the flow of sewage, reducing the defoaming efficiency. UTILITY MODEL CONTENTS
[0004] The utility model discloses a physical defoaming device for oilfield operation chemical flooding sewage treatment to solve the problem of only removing the surface foam in the background art, but the sewage still contains a lot of insoluble gas, and foam is still generated in the process of sewage flowing, and the defoaming efficiency is reduced. To achieve the above object, the utility model provides the following technical scheme: a physical defoaming device for oilfield operation chemical flooding sewage treatment, including the jar body, the top of jar body is provided with pressure regulating component, the pressure regulating component includes filter plate, and the filter plate is fixedly connected at the top of jar body, and the top of jar body is fixedly connected with the buffer box, and the top of buffer box is fixedly connected with a plurality of suction pipes, and the other end of suction pipe is fixedly connected with the air extractor, and the opposite side of air extractor is fixedly connected with the drain pipe, and the side of air extractor is fixedly connected with the air outlet pipe, and the one side inner wall of jar body is fixedly connected with the filter ring, and the one side inner wall of jar body is provided with the interlayer, and the bottom inner wall of jar body is fixedly connected with the filter ring, the physical defoaming device for oilfield operation chemical flooding sewage treatment adds pressure regulating component, and filter plate and filter ring are all composed of aluminum alloy with strong corrosion resistance, a plurality of holes are formed in the inside, the air extractor extracts the gas in the buffer box through the suction pipe to form negative pressure, so as to extract the gas in the jar body to realize the process of pressure reduction, the gas pressure in the jar body is lower than the atmospheric pressure, the insoluble gas in the sewage is discharged to generate more foam, reaches the buffer box through the filter plate, the height of drain pipe is lower than that of air outlet pipe, and the foam and a small part of liquid are discharged through the drain pipe, the liquid must pass through the filter ring to enter the interlayer and be discharged or pass through the filter ring and be discharged, the small holes in the filter ring and filter ring can damage the surface tension of liquid and accelerate the speed of gas discharge, the pressure is increased to restore normal atmospheric pressure after the insoluble gas is discharged, the foam generated by the sewage flowing under normal atmospheric pressure is reduced, and the defoaming efficiency is improved.
[0005] Further preferably, the inside of the jar body is provided with a stirring assembly, the stirring assembly includes a rotary motor, the rotary motor is fixedly connected on one side of the jar body, and the transmission end of the rotary motor is fixedly connected with a rotating shaft.
[0006] Further preferably, the side surface of the rotating shaft is fixedly connected with a plurality of stirring blades, a sliding groove is formed in the inside of the stirring blade, the inside wall of the sliding groove is fixedly connected with a spring rod on one side, the other end of the spring rod is fixedly connected with a sliding block, and the other side of the sliding block is fixedly connected with an arc block. The physical defoaming device for oilfield operation chemical flooding sewage treatment adds the stirring assembly, the rotary motor drives the rotating shaft to rotate, so as to drive the stirring blade to rotate, damage the surface tension of liquid, further improve the gas discharge efficiency, the sliding block can move in the sliding groove, the spring rod is composed of an expansion rod and a spring, the rotating force is increased to improve the centrifugal force, the sliding block slides out to increase the stirring radius, the arc block is attached to the filter ring, the foam is hit to the top and the filter ring, and the foam is reduced, which is beneficial to improve the defoaming efficiency.
[0007] Further preferably, a connecting pipe is fixedly connected in communication with the top of the tank body, and a flange is fixedly connected to the side surface of the connecting pipe.
[0008] Further preferably, a base is fixedly connected to the bottom of the tank body, support columns are fixedly connected to the four corners of the bottom of the base, and anti-skid pads are fixedly connected to the bottom ends of the support columns.
[0009] Further preferably, a water outlet pipe is fixedly connected to the bottom of the tank body, and a valve is fixedly connected to the other end of the water outlet pipe.
[0010] Compared with the prior art, the oil field operation chemical flooding sewage treatment physical defoaming device has the following beneficial effects:
[0011] In the oil field operation chemical flooding sewage treatment physical defoaming device, the pressure regulating assembly is added, the filter plate and the filter ring are both composed of aluminum alloy with high corrosion resistance and are internally provided with a plurality of holes, the air extractor extracts the gas in the buffer tank to form negative pressure, so that the gas in the tank body is extracted to realize the process of pressure reduction, the gas pressure in the tank body is lower than the atmospheric pressure, and the gas that is not dissolved in water is discharged from the sewage to generate more foam, the foam and a small amount of liquid are discharged through the drain pipe, the liquid must pass through the filter ring to be discharged or pass through the filter ring to be discharged, the small holes in the filter ring and the filter ring can destroy the surface tension of the liquid and accelerate the speed of gas discharge, the insoluble gas is discharged, the foam generated by the sewage flowing under normal atmospheric pressure is reduced, and the defoaming efficiency is improved.
[0012] In the oil field operation chemical flooding sewage treatment physical defoaming device, the stirring assembly is added, the rotating shaft is rotated under the driving of the rotating motor, so that the stirring blades are rotated to destroy the surface tension of the liquid and further improve the gas discharge efficiency, the sliding block can move in the sliding groove, the spring rod is composed of the telescopic rod and the spring, the rotation force is increased to improve the centrifugal force, the sliding block slides out to increase the stirring radius, the arc block is attached to the filter ring, the foam is hit to the top and the filter ring, and thus the foam is reduced, which is beneficial to improve the defoaming efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;
[0014] Figure 2 It is a local structure schematic diagram of the utility model Figure 1 ;
[0015] Figure 3 It is a local structure schematic diagram of the utility model Figure 2 ;
[0016] Figure 4 It is a local structure schematic diagram of the stirring assembly in the utility model;
[0017] Figure 5 The partial structure of the utility model is shown Figure 3 .
[0018] In the figure: 1, tank body; 2, pressure regulating assembly; 201, filter plate; 202, buffer box; 203, air suction pipe; 204, air extractor; 205, air outlet pipe; 206, drain pipe; 207, filter ring; 208, interlayer; 3, stirring assembly; 301, rotary motor; 302, rotary shaft; 303, stirring blade; 304, sliding groove; 305, spring rod; 306, sliding block; 307, arc block; 4, connecting pipe; 5, flange; 6, base; 7, support column; 8, non-slip pad; 9, water outlet pipe; 10, valve; 11, filter ring. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0020] Please refer to Figure 1 - Figure 5 A physical defoaming device for treating oilfield operation chemical flooding sewage, comprising a tank body 1, a pressure regulating assembly 2 is arranged at the top of the tank body 1, the pressure regulating assembly 2 comprises a filter plate 201, the filter plate 201 is fixedly connected to the top of the tank body 1, a buffer box 202 is fixedly connected to the top of the tank body 1, a plurality of air suction pipes 203 are fixedly communicated with the top of the buffer box 202, the other ends of the air suction pipes 203 are fixedly communicated with air extractors 204, the air extractors 204 are fixedly communicated with drain pipes 206 on the side opposite to each other, an air outlet pipe 205 is fixedly communicated with one side of the air extractor 204, a filter ring 11 is fixedly connected to the inner wall of one side of the tank body 1, an interlayer 208 is arranged on the inner wall of one side of the tank body 1, and the filter ring 11 is fixedly connected to the inner wall of the bottom of the tank body 1.
[0021] In the embodiment, as shown in Figure 1 , Figure 3 and Figure 4 , the tank body 1 is internally provided with a stirring assembly 3, the stirring assembly 3 comprises a rotary motor 301, the rotary motor 301 is fixedly connected to one side of the tank body 1, and a rotary shaft 302 is fixedly connected to the transmission end of the rotary motor 301.
[0022] In the embodiment, as shown in Figure 1 , Figure 3 and Figure 4As shown, the side surface of the rotating shaft 302 is fixedly connected with a plurality of stirring blades 303, the inside of the stirring blade 303 is provided with a sliding groove 304, one side inner wall of the sliding groove 304 is fixedly connected with a spring rod 305, the other end of the spring rod 305 is fixedly connected with a sliding block 306, the other side of the sliding block 306 is fixedly connected with an arc block 307.
[0023] In the embodiment, as shown in Figure 1 and Figure 5 , the top of the tank body 1 is fixedly connected with a connecting pipe 4, and the side surface of the connecting pipe 4 is fixedly connected with a flange 5.
[0024] In the embodiment, as shown in Figure 1 and Figure 5 , the bottom of the tank body 1 is fixedly connected with a base 6, and the bottom of the base 6 is fixedly connected with a support column 7 at four corners, and the bottom end of the support column 7 is fixedly connected with an anti-skid pad 8.
[0025] In the embodiment, as shown in Figure 1 and Figure 5 , the bottom of the tank body 1 is fixedly connected with a water outlet pipe 9, and the other end of the water outlet pipe 9 is fixedly connected with a valve 10.
[0026] The use method and advantages of the utility model are as follows:
[0027] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the filter plate 201 and the filter ring 207 are both composed of aluminum alloy with strong corrosion resistance, and a plurality of holes are formed in the inside, the air extractor 204 extracts the gas in the inside of the buffer tank 202 through the air suction pipe 203 to form negative pressure, so as to extract the gas in the inside of the tank body 1 to realize the process of pressure reduction, the gas not dissolved in water is discharged from the sewage to generate more foam, and the foam and a small part of liquid are discharged through the drain pipe 206, the liquid must pass through the filter ring 207 to enter the interlayer 208 to be discharged or pass through the filter ring 11 to be discharged, the small holes formed in the inside of the filter ring 207 and the filter ring 11 can destroy the surface tension of the liquid to accelerate the speed of gas discharge, the insoluble gas is discharged, the foam generated by the sewage flowing under normal atmospheric pressure is reduced, and the efficiency of defoaming is improved.
[0028] The basic principle, main features and advantages of the present application are shown and described above. The technical personnel in the industry should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A physical defoaming device for oilfield operation chemical flooding sewage treatment, comprising a tank body (1), characterized in that: The top of the tank body (1) is provided with a pressure regulating assembly (2), the pressure regulating assembly (2) comprises a filter plate (201), the filter plate (201) is fixedly connected to the top of the tank body (1), the top of the tank body (1) is fixedly connected with a buffer tank (202), the top of the buffer tank (202) is fixedly communicated with a plurality of air suction pipes (203), the other end of the air suction pipe (203) is fixedly communicated with an air extractor (204), the side of the air extractor (204) is fixedly communicated with a drain pipe (206), the side of the air extractor (204) is fixedly communicated with an air outlet pipe (205), the inner wall of one side of the tank body (1) is fixedly connected with a filter ring (207), the inner wall of one side of the tank body (1) is provided with a sandwich layer (208), and the bottom inner wall of the tank body (1) is fixedly connected with a filter ring (11).
2. The physical defoaming device for oilfield operation chemical flooding sewage treatment according to claim 1, characterized in that: The inside of the tank body (1) is provided with a stirring assembly (3), the stirring assembly (3) comprises a rotating motor (301), the rotating motor (301) is fixedly connected to one side of the tank body (1), and the transmission end of the rotating motor (301) is fixedly connected with a rotating shaft (302).
3. The physical defoaming device for oilfield operation chemical flooding sewage treatment according to claim 2, characterized in that: The side surface of the rotating shaft (302) is fixedly connected with a plurality of stirring blades (303), the inside of the stirring blade (303) is provided with a sliding groove (304), one side inner wall of the sliding groove (304) is fixedly connected with a spring rod (305), the other end of the spring rod (305) is fixedly connected with a sliding block (306), and the other side of the sliding block (306) is fixedly connected with an arc block (307).
4. The physical defoaming device for oilfield operation chemical flooding sewage treatment according to claim 1, characterized in that: The top of the tank body (1) is fixedly communicated with a connecting pipe (4), and the side surface of the connecting pipe (4) is fixedly connected with a flange (5).
5. The physical defoaming device for oilfield operation chemical flooding sewage treatment according to claim 1, characterized in that: The bottom of the tank body (1) is fixedly connected with a base (6), the bottom of the base (6) is fixedly connected with a support column (7) at four corners, and the bottom end of the support column (7) is fixedly connected with an anti-skid pad (8).
6. The physical defoaming device for oilfield operation chemical flooding sewage treatment according to claim 1, characterized in that: The bottom of the tank body (1) is fixedly communicated with a water outlet pipe (9), and the other end of the water outlet pipe (9) is fixedly communicated with a valve (10). The bottom of the tank body (1) is fixedly communicated with a water outlet pipe (9), and the other end of the water outlet pipe (9) is fixedly communicated with a valve (10).