Filtering equipment for salt-resistant polyacrylamide oil displacement agent

Abstract

The utility model discloses filtering equipment for a salt-resistant polyacrylamide oil-displacing agent, and relates to the technical field of polyacrylamide oil-displacing agent production. The fixed part comprises a fixed support, a shell fixed in the fixed support, a feed port penetrating through the top of the shell, and a discharge port penetrating through the bottom of the shell. The transmission gear is driven by the driving motor to rotate, the first gear and the second gear are connected to the two sides of the transmission gear in a meshed mode respectively, the first gear is connected with the fixing sleeve, the fixing sleeve is indirectly connected with the first stirring block, and the second gear is connected with the rotating shaft. A plurality of second stirring blocks are uniformly distributed on the two sides of the outer wall of the rotating shaft, single bodies of the first stirring blocks and the second stirring blocks are perpendicular to each other, and when the transmission gear rotates, the first stirring blocks and the second stirring blocks are indirectly driven by the second gears and the first gears to stir polyacrylamide liquid, so that the fluidity of the polyacrylamide liquid is improved, and the purpose of improving the filtering effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyacrylamide oil-displacing agent production, in particular to a filtering device for salt-resistant polyacrylamide oil-displacing agent. Background Art

[0002] Oil-displacing agent is an auxiliary agent used to improve crude oil recovery during oil drilling and production. Commonly used polymer-type oil-displacing agents, such as polyacrylamide, can penetrate into the rock gaps of oil layers with a 0.05% aqueous solution and produce 20% to 30% more oil. Roughly, every 1kg of oil-displacing agent can produce 10 barrels (1590L) of additional crude oil. The segmented oil displacement of polymer solutions and surfactants (microemulsions of petroleum sulfonates and alcohols) can displace crude oil in the capillaries of rock formations with an efficiency of almost 100%.

[0003] However, the organic impurities in polyacrylamide monomer are relatively high, which will greatly reduce the activity of the monomer and is not conducive to the formation of polyacrylamide. Therefore, polyacrylamide needs to be filtered to remove impurities. The existing technology generally uses activated carbon or polymer resin to remove impurities, but the fluidity of polyacrylamide is poor, and the filtration efficiency using the above method is low.

[0004] To this end, we provide a filtering device for a salt-resistant polyacrylamide oil-displacing agent to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a filtering device for a salt-resistant polyacrylamide oil-displacing agent, which stirs the polyacrylamide by a first stirring block and a second stirring block to improve the fluidity of the liquid, thereby improving the filtering efficiency and solving the problem of unsatisfactory filtering effect in the prior art.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a filtering device for a salt-resistant polyacrylamide oil-displacing agent, comprising a fixed component, including a fixed bracket, a shell fixed inside the fixed bracket, a feed inlet penetrating the top of the shell, and a discharge port penetrating the bottom of the shell, and the discharge port is located at the center line of the shell, and the bottom of the shell is set in the shape of a funnel with a certain slope, which is conducive to the collection of the oil-displacing agent;

[0008] A filter component, comprising a filter assembly disposed inside the fixed bracket, a power assembly disposed inside the filter assembly, and a stirring assembly disposed at the bottom of the power assembly;

[0009] The filter assembly comprises a filter barrel arranged inside the fixed bracket, a certain gap is left between the bottom end of the filter barrel and the bottom end of the fixed bracket, the side wall of the filter barrel and the inner wall of the fixed bracket form a filter chamber, a filter layer is arranged inside the filter chamber, a filter plate is arranged at the bottom of the filter layer, the filter plate is located below the filter barrel, and there is a certain distance between the two;

[0010] The power assembly includes a fixed sleeve that passes through the top of the housing and is located at the center, a rotating shaft sleeved inside the fixed sleeve, a first gear fixed to the outer wall of the fixed sleeve, a second gear fixed to the outer wall of the rotating shaft corresponding to the upper side of the first gear, a transmission gear arranged between the first gear and the second gear, a driving motor fixed to one side of the driving gear, and a support block arranged at the bottom end of the driving motor;

[0011] The stirring assembly includes L-shaped rods arranged on both sides of the fixed sleeve, a first stirring block fixed to the inner side of the L-shaped rod, and a second stirring block fixed to the outer wall of the rotating shaft.

[0012] The utility model is further configured such that the filter layer is evenly distributed on the outer wall of the filter barrel, and the filter layer has a porous structure and can absorb various organic, inorganic and other impurities.

[0013] The utility model is further configured such that the outside of the fixed sleeve is rotatably connected to the top inner wall of the shell, the fixed sleeve is rotatably connected to the rotating shaft, the two sides of the transmission gear are respectively meshed with the first gear and the second gear, the transmission gear is fixedly connected to the driving end of the driving motor, and the support block plays a bearing role, connecting the driving motor to the shell to ensure the stability of the operation of the driving motor.

[0014] The utility model is further configured such that the first stirring blocks on both sides are perpendicular to each other, and the second stirring blocks on both sides are perpendicular to each other, and the two are interlaced when rotating, thereby improving the stirring effect.

[0015] The utility model is further configured to further include a cleaning component, including a rotating assembly arranged at the bottom of the rotating shaft, and a cleaning assembly arranged above the rotating assembly.

[0016] The utility model is further configured such that the rotating assembly includes a fixed shaft arranged on the bottom side of the filter barrel, a fixed bevel gear sleeved on the outer wall of the fixed shaft, and a plurality of power bevel gears evenly distributed on the fixed bevel gear.

[0017] The utility model is further configured that the cleaning assembly includes a bearing block arranged outside the fixed shaft, a receiving chamber opened inside the bearing block, a connecting rod passing through the bearing block, and the position of the connecting rod corresponds to the position of the power bevel gear one by one, and a cleaning brush sleeved on the outside of the connecting rod;

[0018] Wherein, the bearing block is rotatably connected to the filter barrel, and the connecting rod is located below the filter barrel.

[0019] The utility model is further configured such that the fixed shaft and the fixed bevel gear are fixedly connected, wherein the fixed bevel gear and the power bevel gear are meshed with each other, the height of the gap formed between the filter barrel and the fixed bracket is greater than the diameter of the connecting rod, and the connecting rod and the bearing block are rotationally connected.

[0020] The utility model has the following beneficial effects:

[0021] The utility model drives a transmission gear to rotate by a driving motor, wherein a first gear and a second gear are respectively meshed and connected on both sides of the transmission gear, the first gear is connected to a fixed sleeve, and the fixed sleeve is indirectly connected to a first stirring block, the second gear is connected to a rotating shaft, and a plurality of second stirring blocks are evenly distributed on both sides of an outer wall of the rotating shaft, wherein the single bodies of the two are perpendicular to each other, and when the transmission gear rotates, the first stirring block and the second stirring block are indirectly driven to rotate through the second gear and the first gear, so as to stir the polyacrylamide liquid, improve its fluidity, and achieve the purpose of improving the filtering effect.

[0022] The utility model drives the bearing block to rotate by rotating the rotating shaft. When the bearing block rotates, it will drive the power bevel gear to rotate around the center of the fixed shaft. Since the power bevel gear and the fixed shaft are meshingly connected, when the power bevel gear revolves around the fixed shaft, it will also rotate under the action of the fixed bevel gear, thereby driving the connecting rod to rotate, and indirectly driving the cleaning brush to rotate, so as to clean the bottom of the fixed bracket and prevent the filter hole from being blocked.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1The figure is a schematic diagram of the overall structure of a filtering device for a salt-resistant polyacrylamide oil-displacing agent.

[0026] Figure 2 The figure is a schematic diagram of the overall internal structure of a filtering device for a salt-resistant polyacrylamide oil-displacing agent.

[0027] Figure 3 This is a schematic diagram of the overall structure of a salt-resistant polyacrylamide oil-displacing agent filtering device from another angle.

[0028] Figure 4 The figure is a schematic diagram of the decomposition of the power components of a filtering device for a salt-resistant polyacrylamide oil-displacing agent.

[0029] Figure 5 The figure is a schematic diagram of the overall structure of a cleaning component for a salt-resistant polyacrylamide oil-displacing agent.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 100, fixed component; 101, fixed bracket; 102, housing; 103, feed port; 104, discharge port; 200, filter component; 201, filter assembly; 201a, filter barrel; 201b, filter chamber; 201c, filter layer; 201d, filter plate; 202, power assembly; 202a, fixed sleeve; 202b, rotating shaft; 202c, first gear; 202d, second gear; 202e, transmission gear; 202f, driving motor; 202h, supporting block; 203, stirring assembly; 203a, L-shaped rod; 203b, first stirring block; 203c, second stirring block; 300, cleaning component; 301, rotating assembly; 301a, fixed shaft; 301b, fixed bevel gear; 301c, power bevel gear; 302, cleaning assembly; 302a, bearing block; 302b, accommodating chamber; 302c, connecting rod; 302d, cleaning brush. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0033] See also Figure 1-4The utility model is a filtering device for salt-resistant polyacrylamide oil-displacing agent, comprising a fixing component 100, including a fixing bracket 101, a shell 102 fixed inside the fixing bracket 101, a feed port 103 penetrating the top of the shell 102, and a discharge port 104 penetrating the bottom of the shell 102, and the discharge port 104 is located at the center line of the shell 102, and the bottom of the shell 102 is set in the shape of a funnel with a certain slope, so as to collect the oil-displacing agent;

[0034] The filter component 200 includes a filter assembly 201 disposed inside the fixed bracket 101, a power assembly 202 disposed inside the filter assembly 201, and a stirring assembly 203 disposed at the bottom of the power assembly 202;

[0035] The filter assembly 201 includes a filter barrel 201a disposed inside the fixed bracket 101, a certain gap is left between the bottom end of the filter barrel 201a and the bottom end of the fixed bracket 101, the side wall of the filter barrel 201a and the inner wall of the fixed bracket 101 form a filter chamber 201b, a filter layer 201c is disposed inside the filter chamber 201b, a filter plate 201d is disposed at the bottom of the filter layer 201c, and the filter plate 201d is located below the filter barrel 201a, and there is a certain distance between the two;

[0036] The power assembly 202 includes a fixed sleeve 202a that passes through the top of the housing 102 and is located at the center, a rotating shaft 202b sleeved inside the fixed sleeve 202a, a first gear 202c fixed to the outer wall of the fixed sleeve 202a, a second gear 202d fixed to the outer wall of the rotating shaft 202b corresponding to the upper side of the first gear 202c, a transmission gear 202e arranged between the first gear 202c and the second gear 202d, a driving motor 202f fixed to one side of the driving gear 202e, and a support block 202h arranged at the bottom end of the driving motor 202f;

[0037] The stirring assembly 203 includes L-shaped rods 203a disposed on both sides of the fixed sleeve 202a, a first stirring block 203b fixed to the inner side of the L-shaped rod 203a, and a second stirring block 203c fixed to the outer wall of the rotating shaft 202b.

[0038] Specifically, the filter layer 201c is evenly distributed on the outer wall of the filter barrel 201a. The filter layer 201c has a porous structure and can absorb various impurities such as organic and inorganic substances. The outside of the fixed sleeve 202a is rotatably connected to the top inner wall of the outer shell 102. The fixed sleeve 202a is rotatably connected to the rotating shaft 202b. The two sides of the transmission gear 202e are respectively meshed with the first gear 202c and the second gear 202d. The transmission gear 202e is fixedly connected to the driving end of the driving motor 202f. The support block 202h plays a bearing role, connecting the driving motor 202f to the outer shell 102 to ensure the stability of the operation of the driving motor 202f. The first stirring blocks 203b on both sides are perpendicular to each other, and the second stirring blocks 203c on both sides are perpendicular to each other. When the two rotate, they are staggered to improve the stirring effect.

[0039] The operation process of this embodiment is as follows: first, polyacrylamide is added into the interior of the fixed bracket 101 through the feed port 103, and then the driving motor 202f is started through the corresponding controller. When the driving motor 202f is started, it will drive the transmission gear 202e to rotate, and the first gear 202c and the second gear 202d are respectively meshed and connected on both sides of the transmission gear 202e, so that when the transmission gear 202e rotates, it drives the first gear 202c and the second gear 202d to rotate. In addition, the first gear 202c is fixedly connected to the fixed sleeve 202a, and the second gear 202d is fixedly connected to the rotating shaft 202b, so when the first gear 202c When the first gear 202c and the second gear 202d rotate, the fixed sleeve 202a and the rotating shaft 202b will be driven to rotate, and the fixed sleeve 202a is sleeved on the outside of the rotating shaft 202b, and the two are rotationally connected, so the movement between the two will not be hindered. Since the first gear 202c and the second gear 202d are respectively engaged on both sides of the transmission gear 202e, the rotation directions of the two are opposite. Therefore, the rotation directions of the fixed sleeve 202a and the rotating shaft 202b are opposite. Therefore, the connection directions of the first stirring block 203b and the second stirring block 203c are also opposite, so that the two rotate in opposite directions, further improving the flow of polyacrylamide to improve the filtration efficiency. Specific embodiment 2

[0040] See also Figure 5On the basis of the specific embodiment 1, it also includes a cleaning component 300, including a rotating component 301 arranged at the bottom of the rotating shaft 202b, and a cleaning component 302 arranged above the rotating component 301, the rotating component 301 includes a fixed shaft 301a fixed to the bottom side of the inside of the filter barrel 201a, a fixed bevel gear 301b sleeved on the outer wall of the fixed shaft 301a, and a plurality of power bevel gears 301c evenly distributed on the fixed bevel gear 301b, the cleaning component 302 includes a bearing block 302a arranged outside the fixed shaft 301a, a accommodating chamber 302b opened inside the bearing block 302a, a connecting rod 302c running through the inside of the bearing block 302a, and the position of the connecting rod 302c corresponds one-to-one to the position of the power bevel gear 301c, and a cleaning brush 302d sleeved on the outside of the connecting rod 302c.

[0041] Specifically, the fixed shaft 301a and the fixed bevel gear 301b are fixedly connected, wherein the fixed bevel gear 301b and the power bevel gear 301c are meshed, the height of the gap formed between the filter barrel 201a and the fixed bracket 101 is greater than the diameter of the connecting rod 302c, and the connecting rod 302c and the supporting block 302a are rotationally connected.

[0042] The operation process of this embodiment is as follows: the bearing block 302a is fixed at the bottom end of the rotating shaft 202b, so when the rotating shaft 202b rotates, the bearing block 302a will be driven to rotate, wherein a connecting rod 302c runs through the outer wall of the bearing block 302a, and a power bevel gear 301c is fixedly connected to one end of the connecting rod 302c, so the rotation of the bearing block 302a will drive the power bevel gear 301c to revolve around the rotating shaft 202b, and in addition, the bottom end of the power bevel gear 301c is connected through a fixed bevel gear 301b, and the fixed bevel gear 301c is fixed to the bottom end of the power bevel gear 301c. The bevel gear 301b is fixed to the bottom of the filter barrel 201a through the fixed shaft 301a, so when the power bevel gear 301c revolves around the rotating shaft 202b, it will also rotate under the action of the fixed bevel gear 301b. In addition, a certain space is reserved between the filter barrel 201a and the fixed bracket 201d, that is, the height of the filter barrel 201a is higher than the height of the filter plate 201d, so that the connecting rod 302c can rotate, thereby achieving the purpose of cleaning the filter plate 201d and avoiding blockage that affects the filtering efficiency.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A filtering device for salt-resistant polyacrylamide oil-displacing agent, characterized in that: The invention comprises a fixing component (100), comprising a fixing bracket (101), a shell (102) fixed inside the fixing bracket (101), a feed port (103) penetrating the top of the shell (102), and a discharge port (104) penetrating the bottom of the shell (102), wherein the discharge port (104) is located at the center line of the shell (102), and the bottom of the shell (102) is arranged in the shape of a funnel with a certain slope, so as to facilitate the collection of the oil displacement agent; A filtering component (200), comprising a filtering assembly (201) disposed inside the fixing bracket (101), a power assembly (202) disposed inside the filtering assembly (201), and a stirring assembly (203) disposed at the bottom of the power assembly (202); The filter assembly (201) comprises a filter barrel (201a) arranged inside the fixed bracket (101), a certain gap being left between the bottom end of the filter barrel (201a) and the bottom end of the fixed bracket (101), the side wall of the filter barrel (201a) and the inner wall of the fixed bracket (101) forming a filter chamber (201b), a filter layer (201c) being arranged inside the filter chamber (201b), a filter plate (201d) being arranged at the bottom of the filter layer (201c), the filter plate (201d) being located below the filter barrel (201a), and a certain distance being left between the two; The power assembly (202) comprises a fixed sleeve (202a) penetrating the top of the housing (102) and located at the center, a rotating shaft (202b) sleeved inside the fixed sleeve (202a), a first gear (202c) fixed to the outer wall of the fixed sleeve (202a), a second gear (202d) fixed to the outer wall of the rotating shaft (202b) corresponding to the top of the first gear (202c), a transmission gear (202e) arranged between the first gear (202c) and the second gear (202d), a driving motor (202f) fixed to one side of the driving gear (202e), and a support block (202h) arranged at the bottom end of the driving motor (202f); The stirring assembly (203) comprises an L-shaped rod (203a) arranged on both sides of the fixed sleeve (202a), a first stirring block (203b) fixed to the inner side of the L-shaped rod (203a), and a second stirring block (203c) fixed to the outer wall of the rotating shaft (202b).

2. The filtering device of a salt-resistant polyacrylamide oil-displacing agent according to claim 1, characterized in that: The filter layer (201c) is evenly distributed on the outer wall of the filter barrel (201a), and the filter layer (201c) has a porous structure.

3. The filtering device of a salt-resistant polyacrylamide oil-displacing agent according to claim 1, characterized in that: The exterior of the fixed sleeve (202a) is rotationally connected to the top inner wall of the housing (102); the fixed sleeve (202a) is rotationally connected to the rotating shaft (202b); the two sides of the transmission gear (202e) are respectively meshed and connected to the first gear (202c) and the second gear (202d); the transmission gear (202e) is fixedly connected to the driving end of the driving motor (202f); the support block (202h) plays a bearing role and connects the driving motor (202f) to the housing (102) to ensure the stability of the operation of the driving motor (202f).

4. The filtering device of a salt-resistant polyacrylamide oil-displacing agent according to claim 1, characterized in that: The first stirring blocks (203b) on both sides are perpendicular to each other, and the second stirring blocks (203c) on both sides are perpendicular to each other, and the two blocks intersect each other when rotating, thereby improving the stirring effect.

Images