Discharging and filtering device of emulsification pump

Abstract

The utility model relates to the technical field of material residue filtering, in particular to a discharging and filtering device of an emulsification pump. The emulsification pump discharging and filtering device comprises a three-way pipe, one pipe opening of the three-way pipe is fixedly connected with a discharging opening of the emulsification pump, filter cartridges are fixedly installed on the other two pipe openings of the three-way pipe respectively, the tail of each filter cartridge is of an opening structure and is provided with a rotary knob in threaded connection, and a conical filtering hopper is installed on each rotary knob. And a scraper for scraping filter residues attached to the fan-shaped filter screen is mounted on the conical filter hopper. According to the discharging and filtering device of the emulsification pump, the two filter cartridges are connected through the three-way pipe, seamless switching of the main filter cartridge and the standby filter cartridge is achieved in cooperation with switching of the valve A and the valve B, the filter screens can be cleaned or maintained without shutdown, the production efficiency is greatly improved, the fan-shaped filter screens annularly distributed on the conical filter hopper increase the filtering contact area, and the filtering efficiency is improved. And the scraping blade is linked with the rotary knob through the rotating rod, so that attached filter residues can be quickly scraped, and the cleaning process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of material filtration technology, and in particular to an emulsification pump discharge filtration device. Background Technology

[0002] In fracturing operations, to improve the flowback efficiency of fracturing fluid and reduce its retention in the formation, thereby minimizing damage to the reservoir, flowback aids are typically added. During fracturing, an emulsification pump mixes gas (such as nitrogen or carbon dioxide) with the liquid containing the flowback aid to form a stable foam fracturing fluid. However, after emulsification in the liquid or gas containing the flowback aid, impurities (such as unreacted chemicals, suspended particles, metal ions, etc.) may be introduced directly into the system during the emulsification process. Furthermore, high temperature, high pressure, or chemical interactions may cause the flowback aid components to decompose or undergo side reactions, resulting in the formation of precipitates, flocculants, and other impurities. To improve the quality of the emulsion output, a filtration device is usually installed at the emulsification pump outlet, which is a key piece of equipment to ensure emulsion uniformity and impurity separation.

[0003] Most existing filter elements use a single filter cartridge structure, which results in low working efficiency during downtime maintenance. When the filter screen becomes clogged, the machine must be stopped to disassemble the filter cartridge for cleaning or replacement, causing production interruption and affecting overall efficiency. The filter screen inside the single filter cartridge is usually designed as a planar filter screen, which has a small contact area and is easily clogged by large particles of impurities, requiring frequent maintenance and thus causing inconvenience in cleaning.

[0004] Therefore, it is necessary to provide a new emulsification pump discharge filtration device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an emulsification pump discharge filtration device.

[0006] The emulsification pump discharge filtration device provided by this utility model includes a three-way pipe, one end of which is fixedly connected to the discharge port of the emulsification pump, and filter cartridges are fixedly installed on the remaining two ends of the three-way pipe respectively. A valve A is installed at the connection end between the three-way pipe and the filter cartridge.

[0007] The tail of the filter cartridge is an open structure and is equipped with a threaded knob. A conical filter bucket is installed on the knob. The conical filter bucket has several annularly distributed filter cavities. Each filter cavity is fixedly fitted with a fan-shaped filter screen. The cone head of the conical filter bucket faces the T-connector end.

[0008] The conical filter bucket is equipped with scrapers for scraping off filter residue adhering to the fan-shaped filter screen.

[0009] Preferably, a threaded sealing post is fixedly installed on the insertion end of the knob, and the threaded sealing post is threadedly fixedly connected to the internal thread of the opening at the tail of the filter cartridge. A rotating A-ring is installed on the end of the threaded sealing post, and several annularly distributed connecting rods are fixedly installed on the rotating A-ring. The other end of the connecting rod is fixedly connected to the large-diameter end of the conical filter bucket.

[0010] Preferably, a rotating rod is fixedly installed on the end of the threaded sealing column, and the rotating rod passes through a through hole opened on the end face of the conical filter bucket and is fixedly connected to the scraper.

[0011] Preferably, a sealing ring is provided in the through hole opened on the end face of the conical filter bucket, and the scraper abuts against the fan-shaped filter screen on the outer conical surface of the conical filter bucket.

[0012] Preferably, a discharge pipe is installed on the cylinder wall near the tail end of the filter cartridge, and a valve B is installed on the discharge pipe.

[0013] Preferably, the outer wall of the large-diameter end of the conical filter bucket is slidably connected to the filter cylinder.

[0014] Preferably, the knob is equipped with a rotating B-ring coaxially arranged with the threaded sealing post, and the rotating B-ring is equipped with several sets of ring-shaped reset members.

[0015] Preferably, the reset component includes a sliding rod, one end of which is fixedly connected to the rotating B ring, and the other end of which is inserted into the mounting hole of the filter cartridge. A rod cap is fixedly installed at the inserted end of the sliding rod, and the rod cap is slidably connected to the mounting hole. A spring is sleeved on the sliding rod, one end of which is fixedly connected to the inner wall of the rod cap, and the other end of which is fixedly connected to the inner wall of the mounting hole near the tail of the filter cartridge.

[0016] Compared with related technologies, the emulsification pump discharge filtration device provided by this utility model has the following beneficial effects:

[0017] This invention connects two filter cartridges via a three-way pipe. By switching between valves A and B, seamless switching between the two filter cartridges can be achieved, allowing for filter cleaning or maintenance without stopping the machine and without disrupting normal production. The fan-shaped filter screens distributed in a ring on the conical filter bucket increase the filtration contact area, delaying clogging. Furthermore, the scraper blades, linked to the rotating rod and knob, can quickly scrape off the attached filter residue, simplifying the cleaning process. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the emulsification pump discharge filtration device provided by this utility model;

[0019] Figure 2for Figure 1 A schematic cross-sectional view of the filter cartridge shown.

[0020] Figure 3 A schematic diagram of the structure when the knob provided by this utility model is connected to the conical filter bucket;

[0021] Figure 4 A schematic diagram of the resetting component provided by this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the conical filter hopper sliding out of the filter cylinder in the emulsion pump discharge filtration device provided by this utility model.

[0023] The following are the labels in the diagram: 1. Tee; 11. Valve A; 2. Filter cartridge; 2a. Mounting hole; 21. Internal thread; 22. Discharge pipe; 221. Valve B; 3. Knob; 31. Threaded sealing post; 32. Rotating ring A; 33. Connecting rod; 34. Rotating ring B; 4. Conical filter hopper; 41. Fan-shaped filter screen; 5. Rotating rod; 6. Scraper; 7. Reset part; 71. Sliding rod; 72. Spring; 73. Rod cap. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 3 The present invention provides an emulsification pump discharge filtration device, which includes a three-way pipe 1, a filter cylinder 2, and a conical filter bucket 4.

[0027] In the embodiments of this utility model, please refer to Figures 1 to 3One port of the three-way pipe 1 is fixedly connected to the outlet of the emulsifying pump, and filter cartridges 2 are fixedly installed on the other two ports of the three-way pipe 1. A valve A11 is installed at the connection end between the three-way pipe 1 and the filter cartridge 2. The tail of the filter cartridge 2 is an open structure and is equipped with a threaded knob 3. A conical filter bucket 4 is installed on the knob 3, and several annularly distributed filter cavities are opened on the conical filter bucket 4. A fan-shaped filter screen 41 is fixedly embedded in each filter cavity. A coaxial cable is fixedly installed at the insertion end of the knob 3. A threaded sealing post 31 is provided, and the threaded sealing post 31 is threadedly fixedly connected to the internal threaded part 21 provided at the tail opening of the filter cylinder 2. A rotating A ring 32 is installed on the end of the threaded sealing post 31, and several annularly distributed connecting rods 33 are fixedly installed on the rotating A ring 32. The other end of the connecting rods 33 is fixedly connected to the large-diameter end of the conical filter bucket 4. A discharge pipe 22 is installed on the cylinder wall near the tail of the filter cylinder 2, and a valve B221 is installed on the discharge pipe 22.

[0028] It should be noted that: the emulsion pump outlet is connected to two sets of filter cartridges 2 via the three-way pipe 1, one set is in use and the other set is on standby. When filtering the material discharged from the emulsion pump, the standby filter cartridge 2 is closed. Therefore, when the material discharged from the emulsion pump outlet enters the filter cartridge 2 in use, it is filtered by the fan-shaped filter screen 41 on the conical filter bucket 4. The filtered material is then discharged through the discharge pipe 22, thereby removing impurities generated during the mixing process of the emulsion pump and ensuring the uniformity of the emulsion.

[0029] In this embodiment, by switching valves A11 and B221, a set of filter cartridges 2 can be shut down for cleaning or maintenance of the fan-shaped filter screen 41 on the conical filter bucket 4 without interrupting the operation of the emulsifying pump, while the spare filter cartridge 2 is activated, thus completely eliminating the potential for reduced work efficiency caused by the emulsifying pump being shut down for maintenance.

[0030] Furthermore, the cone head of the conical filter hopper 4 faces the connection end of the three-way pipe 1, thereby increasing the contact area between the fan-shaped filter screen 41 and the material. The outer wall of the large-diameter end of the conical filter hopper 4 is slidably connected to the filter cylinder 2, preventing the material from being discharged from the gap between the large-diameter end of the conical filter hopper 4 and the inner wall of the filter cylinder 2.

[0031] In the embodiments of this utility model, please refer to Figures 1 to 3 The conical filter bucket 4 is equipped with a scraper 6 for scraping off the filter residue attached to the fan-shaped filter screen 41. Specifically, a rotating rod 5 is fixedly installed on the end of the threaded sealing column 31 and is coaxially arranged. The rotating rod 5 passes through the through hole opened on the end face of the conical filter bucket 4 and is fixedly connected to the scraper 6.

[0032] It should be noted that when cleaning or repairing the fan-shaped filter screen 41, the valve on the filter cartridge 2 should be closed and the spare filter cartridge 2 should be activated simultaneously. Then, rotate the knob 3 outward to slide the conical filter bucket 4 out of the filter cartridge 2. Since the connecting rod 33 is rotatably connected to the threaded sealing column 31 through the rotating ring A 32, turning the connecting rod 33 at this time will drive the conical filter bucket 4 to rotate around the axis of the threaded sealing column 31. Thus, the scraper 6 on the rotating rod 5 can quickly remove the filter residue attached to the fan-shaped filter screen 41 (as shown in the attached image). Figure 4 (As shown).

[0033] To prevent the conical filter bucket 4 from deflecting off the knob 3 during the process of unscrewing the knob 3 out of the filter cylinder 2, which could cause the scraper 6 to collect filter residue from the fan-shaped filter screen 41 and fall into the filter cylinder 2, two corresponding threaded through holes (not shown in the figure) can be made on the rotating A ring 32 and the threaded sealing column 31. The rotating A ring 32 can be fixed to the threaded sealing column 31 with screws to prevent the conical filter bucket 4 from deflecting off the knob 3 when the threaded sealing column 31 is threadedly connected or separated from the internal thread part 21.

[0034] If necessary, a water gun can be used to backwash the fan-shaped filter screen 41.

[0035] In this embodiment, a sealing ring is provided in the through hole on the end face of the conical filter bucket 4 to prevent material from leaking out of the through hole. The scraper 6 abuts against the fan-shaped filter screen 41 on the outer conical surface of the conical filter bucket 4, so that the scraper 6 can more thoroughly scrape off the filter residue attached to the fan-shaped filter screen 41.

[0036] Based on the above embodiments, this embodiment adds a reset member 7 for driving the knob 3 to spring back. Please refer to [link to relevant documentation]. Figures 1 to 4 A rotating B-ring 34, coaxially arranged with the threaded sealing post 31, is installed on the knob 3. Several sets of ring-shaped reset members 7 are installed on the rotating B-ring 34. The reset member 7 includes a sliding rod 71. One end of the sliding rod 71 is fixedly connected to the rotating B-ring 34, and the other end of the sliding rod 71 is inserted into the mounting hole 2a of the filter cartridge 2. A rod cap 73 is fixedly installed on the inserted end of the sliding rod 71, and the rod cap 73 is slidably connected to the mounting hole 2a. A spring 72 is sleeved on the sliding rod 71. One end of the spring 72 is fixedly connected to the inner wall of the rod cap 73, and the other end of the spring 72 is fixedly connected to the inner wall of the mounting hole 2a near the tail of the filter cartridge 2.

[0037] It should be noted that after the conical filter bucket 4 is pulled out of the filter cylinder 2, the spring 72 is compressed. After the conical filter bucket 4 is cleaned, the knob 3 is released to drive the conical filter bucket 4 to slide back into the filter cylinder 2 quickly. Then, the threaded sealing column 31 is tightened. The sliding rod 71 also improves the stability of the conical filter bucket 4 when it slides in the filter cylinder 2.

[0038] Two filter cartridges 2 are connected by a three-way pipe 1. With the switching of valves A11 and B221, the two filter cartridges can be switched seamlessly. The filter screen can be cleaned or repaired without stopping the machine, without delaying normal production. The fan-shaped filter screens 41 distributed in a ring on the conical filter bucket 4 increase the filtration contact area and delay clogging. The scraper 6 is linked with the knob 3 through the rotating rod 5, which can quickly scrape off the attached filter residue and simplify the cleaning process.

[0039] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An emulsifying pump discharge filtration device, comprising a three-way pipe (1), one port of the three-way pipe (1) being fixedly connected to the discharge port of the emulsifying pump, and filter cartridges (2) being fixedly installed on the remaining two ports of the three-way pipe (1), and a valve A (11) being installed at the connection end between the three-way pipe (1) and the filter cartridges (2), characterized in that: The tail of the filter cylinder (2) is an open structure and is equipped with a threaded knob (3). A conical filter bucket (4) is installed on the knob (3). The conical filter bucket (4) has several annularly distributed filter cavities. Each filter cavity is fixedly fitted with a fan-shaped filter screen (41). The cone of the conical filter bucket (4) faces the connection end of the three-way pipe (1). The conical filter bucket (4) is equipped with a scraper (6) for scraping off the filter residue attached to the fan-shaped filter screen (41).

2. The emulsifying pump discharge filtration device according to claim 1, characterized in that, The knob (3) is fixedly installed with a coaxially arranged threaded sealing column (31), and the threaded sealing column (31) is threadedly fixedly connected to the internal thread (21) of the tail opening of the filter cylinder (2). The end of the threaded sealing column (31) is installed with a coaxially arranged rotating A ring (32), and several annularly distributed connecting rods (33) are fixedly installed on the rotating A ring (32). The other end of the connecting rod (33) is fixedly connected to the large diameter end of the conical filter bucket (4).

3. The emulsifying pump discharge filtration device according to claim 2, characterized in that, A rotating rod (5) is fixedly installed on the end of the threaded sealing column (31) and is coaxially arranged. The rotating rod (5) passes through the through hole opened on the end face of the conical filter bucket (4) and is fixedly connected to the scraper (6).

4. The emulsifying pump discharge filtration device according to claim 3, characterized in that, A sealing ring is provided in the through hole opened on the end face of the conical filter bucket (4), and the scraper (6) abuts against the fan-shaped filter screen (41) on the outer conical surface of the conical filter bucket (4).

5. The emulsifying pump discharge filtration device according to claim 1, characterized in that, The filter cartridge (2) has a discharge pipe (22) installed on the cylinder wall near the tail end, and a valve B (221) is installed on the discharge pipe (22).

6. The emulsifying pump discharge filtration device according to claim 1, characterized in that, The outer wall of the large-diameter end of the conical filter bucket (4) is slidably connected to the filter cylinder (2).

7. The emulsifying pump discharge filtration device according to claim 1, characterized in that, The knob (3) is equipped with a rotating B ring (34) coaxially arranged with the threaded sealing column (31), and the rotating B ring (34) is equipped with several sets of ring-shaped reset members (7).

8. The emulsifying pump discharge filtration device according to claim 7, characterized in that, The reset component (7) includes a sliding rod (71), one end of which is fixedly connected to the rotating B ring (34), and the other end of which is inserted into the mounting hole (2a) of the filter cartridge (2). A rod cap (73) is fixedly installed on the inserted end of the sliding rod (71), and the rod cap (73) is slidably connected to the mounting hole (2a). A spring (72) is sleeved on the sliding rod (71), one end of which is fixedly connected to the inner wall of the rod cap (73), and the other end of which is fixedly connected to the inner wall of the mounting hole (2a) near the tail of the filter cartridge (2).

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