Wastewater treatment equipment for oilfield fracturing fluid production

Abstract

The utility model discloses wastewater treatment equipment for oil field fracturing fluid production, which belongs to the field of oil field fracturing fluid production and comprises a wastewater treatment box, a filter component is arranged in the wastewater treatment box and comprises a bearing frame, the outer side of the bearing frame is fixedly connected with the inner side of the wastewater treatment box, and the outer side of the bearing frame is fixedly connected with the inner side of the wastewater treatment box. A positioning hole is formed in the outer wall of the top of the wastewater treatment box, a positioning pin is inserted into the positioning hole, a first mounting frame is welded to the top of the positioning pin, a first filter screen is fixedly connected to the inner side of the first mounting frame, and a separation sleeve is fixedly connected to the top of the first mounting frame; a separation rod is inserted into the separation sleeve; by arranging the filtering assembly, wastewater can be filtered in a double-effect mode, the two filtering nets can be independently detached, an operator can conveniently replace or maintain the filtering nets in the later period, and the situation that the filtering effect is affected due to the fact that the filtering nets are blocked is prevented.

Description

Technical Field

[0001] This utility model belongs to the field of oilfield fracturing fluid production technology, specifically relating to a wastewater treatment device for oilfield fracturing fluid production. Background Technology

[0002] Oilfield fracturing fluid is a key material used in hydraulic fracturing technology in oil and gas development. Its core function is to form artificial fractures by injecting it into the formation under high pressure, thereby improving the efficiency of oil and gas flow. Fracturing fluid is usually composed of two parts: base fluid and additives. A large amount of wastewater is generated during the production process, so the wastewater needs to be purified.

[0003] Chinese patent CN220537656U discloses an industrial wastewater treatment device, including a treatment tank and a base. The treatment tank is equipped with a filtration chamber, a mixing chamber, a settling chamber, and a sterilization chamber. The top outer wall of the base has multiple collection troughs, and the filtration chamber, mixing chamber, settling chamber, and sterilization chamber are all adapted to the collection troughs. The top outer wall of the base also has multiple first and second sliding grooves. The bottom outer wall of the treatment tank is fixedly connected to multiple sliders, with the first and second sliding grooves slidingly engaging with the sliders. In this invention, a base is provided, and the treatment tank is slidably mounted on the base. When cleaning the collection troughs in the base is required, the treatment tank can simply be pushed above another set of clean collection troughs. The treatment tank can still treat wastewater at this time. Furthermore, the separate treatment tank and collection troughs make cleaning the bottom of the collection troughs easier and faster.

[0004] However, some shortcomings still exist. For example, the treatment equipment is equipped with a filter assembly to filter impurities in the wastewater, but the filter screen is directly fixed inside the box, making it inconvenient to disassemble and install. This makes it difficult for operators to replace or maintain the clogged filter screen later, causing the filter assembly in the treatment equipment to malfunction and affecting the filtration effect of the treatment equipment. Utility Model Content

[0005] The purpose of this invention is to provide a wastewater treatment device for oilfield fracturing fluid production to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wastewater treatment device for oilfield fracturing fluid production, comprising a wastewater treatment tank, a filter assembly inside the wastewater treatment tank, the filter assembly including a receiving frame, the outer side of the receiving frame being fixedly connected to the inner side of the wastewater treatment tank, a positioning hole being provided on the top outer wall of the wastewater treatment tank, a positioning pin being inserted into the positioning hole, a first mounting frame being welded to the top of the positioning pin, a first filter screen being fixedly connected to the inner side of the first mounting frame, a partition sleeve being fixedly connected to the top of the first mounting frame, a partition rod being inserted into the partition sleeve, a second mounting frame being fixedly connected to the top of the partition rod, a second filter screen being fixedly connected to the inner side of the second mounting frame, and a handle being fixedly connected to the top of the second mounting frame.

[0007] In a preferred embodiment, both the first filter screen and the second filter screen have multiple filter holes inside, and the diameter of the filter holes inside the first filter screen is smaller than the diameter of the filter holes inside the second filter screen.

[0008] In a preferred embodiment, a support frame is fixedly connected to the top of the wastewater treatment tank, a first pump body is fixedly connected to the top of the support frame, an inlet pipe is fixedly connected to one side of the first pump body, an inlet pipe is fixedly connected to the other side of the first pump body, a diversion plate is fixedly connected to the top inner wall of the first pump body, and the inlet pipe communicates with a diversion groove opened inside the diversion plate.

[0009] In a preferred embodiment, a spray head is fixedly connected to the bottom of the diversion plate, and the number of spray heads is multiple.

[0010] In a preferred embodiment, a neutralization assembly is provided on one side of the wastewater treatment tank. The neutralization assembly includes a second pump body fixedly connected to one side of the wastewater treatment tank. A connecting pipe is fixedly connected to one side of the second pump body. An acidic neutralizing agent storage tank and an alkaline neutralizing agent storage tank are provided below the connecting pipe. The alkaline neutralizing agent storage tank is fixedly connected to the rear side of the acidic neutralizing agent storage tank. A first inlet pipe is connected to the interior of the acidic neutralizing agent storage tank, and a second inlet pipe is connected to the interior of the alkaline neutralizing agent storage tank. One end of both the first and second inlet pipes extends into the interior of the connecting pipe. Diverter pipes are fixedly connected to both the front and rear sides of the second pump body. A spray pipe is connected to the interior of the diverter pipe, and one end of the spray pipe extends into the interior of the wastewater treatment tank.

[0011] In a preferred embodiment, both the first inlet pipe and the second inlet pipe are internally connected to a first valve, and there are multiple spray pipes.

[0012] In a preferred embodiment, a drain pipe is fixedly connected to the other side of the wastewater treatment tank, and a second valve is connected inside the drain pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This wastewater treatment equipment for oilfield fracturing fluid production can filter wastewater in a dual-effect manner through its filter components. Both filter screens can be disassembled independently, making it convenient for operators to replace or maintain the filter screens later, and preventing the filter screens from being blocked and affecting the filtration effect.

[0015] 2. The wastewater treatment equipment for oilfield fracturing fluid production has a neutralization mechanism that can neutralize acidic or alkaline substances in the wastewater, preventing secondary pollution caused by excessive acidic or alkaline substances in the wastewater. Attached Figure Description

[0016] Figure 1 This is a front view of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the filter assembly in this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of the second filter screen in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the diverter plate in this utility model.

[0021] In the diagram: 1. Wastewater treatment tank; 2. Filter assembly; 21. Receiving frame; 22. First mounting frame; 23. First filter screen; 24. Positioning pin; 25. Positioning hole; 26. Separator sleeve; 27. Second mounting frame; 28. Second filter screen; 29. ​​Separator rod; 210. Handle; 3. Support frame; 31. First pump body; 32. Inlet pipe; 33. Inlet pipe; 34. Diverter plate; 35. Spray head; 4. Second pump body; 41. Connecting pipe; 42. Acid neutralizer storage tank; 43. Alkaline neutralizer storage tank; 44. First liquid inlet pipe; 45. Second liquid inlet pipe; 46. First valve; 47. Diverter pipe; 48. Spray pipe; 5. Drain pipe; 6. Second valve. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0024] Please see Figure 1-5 This utility model provides a wastewater treatment device for oilfield fracturing fluid production, including a wastewater treatment tank 1, a filter assembly 2 is installed inside the wastewater treatment tank 1, and a drain pipe 5 is fixedly connected to the other side of the wastewater treatment tank 1. A second valve 6 is connected inside the drain pipe 5.

[0025] like Figure 2 , Figure 3 and Figure 4 As shown, the filter assembly 2 includes a receiving frame 21. The outer side of the receiving frame 21 is fixedly connected to the inner side of the wastewater treatment tank 1. A positioning hole 25 is provided on the top outer wall of the wastewater treatment tank 1. A positioning pin 24 is inserted into the positioning hole 25. A first mounting frame 22 is welded to the top of the positioning pin 24. A first filter screen 23 is fixedly connected to the inner side of the first mounting frame 22. A partition sleeve 26 is fixedly connected to the top of the first mounting frame 22. A partition rod 29 is inserted into the inner side of the partition sleeve 26. A second mounting frame 27 is fixedly connected to the top of the partition rod 29. A second filter screen 28 is fixedly connected to the inner side of the second mounting frame 27. A handle 210 is fixedly connected to the top of the second mounting frame 27. Multiple filter holes are provided inside both the first filter screen 23 and the second filter screen 28. The diameter of the filter holes inside the first filter screen 23 is smaller than the diameter of the filter holes inside the second filter screen 28.

[0026] In use, the divider 29 at the bottom of the second mounting frame 27 can be pulled out from the divider sleeve 26 at the top of the first mounting frame 22 by pulling the handle 210, thus disassembling the first mounting frame 22 and the second mounting frame 27. The second filter screen 28 can then be removed from the inside of the wastewater treatment tank 1. Then, the positioning pin 24 at the bottom of the receiving frame 21 can be pulled out from the positioning hole 25 on the top outer wall of the receiving frame 21 by pulling the divider sleeve 26, thus disassembling the first mounting frame 22 and the receiving frame 21. The operator can then remove the first filter screen 23 from the inside of the wastewater treatment tank 1 by pulling the divider sleeve 26, thus achieving independent disassembly of the two filter screens, which is convenient for the operator to clean or replace the filter screens.

[0027] like Figure 1 and Figure 5As shown, a support frame 3 is fixedly connected to the top of the wastewater treatment tank 1, a first pump body 31 is fixedly connected to the top of the support frame 3, an inlet pipe 32 is fixedly connected to one side of the first pump body 31, an inlet pipe 33 is fixedly connected to the other side of the first pump body 31, a diversion plate 34 is fixedly connected to the top inner wall of the first pump body 31, the inlet pipe 33 communicates with the diversion groove opened inside the diversion plate 34, and a spray head 35 is fixedly connected to the bottom of the diversion plate 34. There are multiple spray heads 35.

[0028] In use, wastewater is introduced into the diversion plate 34 through the configuration of the first pump body 31, the inlet pipe 32 and the guide pipe 33. The diversion plate 34 diverts the wastewater into multiple spray heads 35, and the spray heads 35 spray the wastewater out, so that the wastewater can fully contact the filter screen, avoiding single-point detachment from affecting the filtration effect of the filter screen and improving the filtration effect of the filter screen.

[0029] like Figure 1 As shown, a neutralization assembly is provided on one side of the wastewater treatment tank 1. The neutralization assembly includes a second pump body 4 fixedly connected to one side of the wastewater treatment tank 1. A connecting pipe 41 is fixedly connected to one side of the second pump body 4. An acid neutralizing agent storage tank 42 and an alkaline neutralizing agent storage tank 43 are provided below the connecting pipe 41. The alkaline neutralizing agent storage tank 43 is fixedly connected to the rear side of the acid neutralizing agent storage tank 42. A first inlet pipe 44 is connected to the inside of the acid neutralizing agent storage tank 42, and a second inlet pipe 45 is connected to the inside of the alkaline neutralizing agent storage tank 43. One end of both the first inlet pipe 44 and the second inlet pipe 45 extends into the inside of the connecting pipe 41. Diverter pipes 47 are fixedly connected to both the front and rear sides of the second pump body 4. Spray pipes 48 are connected to the inside of the diverter pipes 47. One end of the spray pipes 48 extends into the inside of the wastewater treatment tank 1. A first valve 46 is connected to the inside of both the first inlet pipe 44 and the second inlet pipe 45. There are multiple spray pipes 48.

[0030] In use, the wastewater can first be tested using pH test paper or a pH test pen to determine its acidity or alkalinity. If the acidity is too high, the second pump 4 can be started, and the acid neutralizing agent filled in the acid neutralizing agent storage tank 42 can be introduced into the diversion pipe 47 through the connecting pipe 41 and the first inlet pipe 44. Then, it can be sprayed out through the spray pipe 48 to fully contact the wastewater in the wastewater treatment tank 1 and treat the acidic substances in the wastewater. If the alkalinity is too high, the second pump 4 can be started, and the alkaline neutralizing agent in the alkaline neutralizing agent storage tank 43 can be introduced into the diversion pipe 47 through the connecting pipe 41 and the second inlet pipe 45. Similarly, it can be sprayed out through the spray pipe 48 to achieve the neutralization treatment of alkaline substances.

[0031] The working principle of this utility model:

[0032] In use, the divider 29 at the bottom of the second mounting frame 27 can be pulled out from the divider sleeve 26 at the top of the first mounting frame 22 by pulling the handle 210, thus disassembling the first mounting frame 22 and the second mounting frame 27. The second filter screen 28 can then be removed from the inside of the wastewater treatment tank 1. Then, the positioning pin 24 at the bottom of the receiving frame 21 can be pulled out from the positioning hole 25 on the top outer wall of the receiving frame 21 by pulling the divider sleeve 26, thus disassembling the first mounting frame 22 and the receiving frame 21. The operator can then remove the first filter screen 23 from the inside of the wastewater treatment tank 1 by pulling the divider sleeve 26, thus achieving independent disassembly of the two filter screens, which is convenient for the operator to clean or replace the filter screens.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for oilfield fracturing fluid production, comprising a wastewater treatment tank (1), characterized in that: The wastewater treatment tank (1) is equipped with a filter assembly (2). The filter assembly (2) includes a receiving frame (21). The outer side of the receiving frame (21) is fixedly connected to the inner side of the wastewater treatment tank (1). The top outer wall of the wastewater treatment tank (1) is provided with a positioning hole (25). A positioning pin (24) is inserted into the positioning hole (25). A first mounting frame (22) is welded to the top of the positioning pin (24). A first filter screen (23) is fixedly connected to the inner side of the first mounting frame (22). A partition sleeve (26) is fixedly connected to the top of the first mounting frame (22). A partition rod (29) is inserted into the inner side of the partition sleeve (26). A second mounting frame (27) is fixedly connected to the top of the partition rod (29). A second filter screen (28) is fixedly connected to the inner side of the second mounting frame (27). A handle (210) is fixedly connected to the top of the second mounting frame (27).

2. The wastewater treatment equipment for oilfield fracturing fluid production according to claim 1, characterized in that: Both the first filter screen (23) and the second filter screen (28) have multiple filter holes inside. The diameter of the filter holes inside the first filter screen (23) is smaller than the diameter of the filter holes inside the second filter screen (28).

3. The wastewater treatment equipment for oilfield fracturing fluid production according to claim 1, characterized in that: The wastewater treatment tank (1) is fixedly connected to a support frame (3), and the support frame (3) is fixedly connected to a first pump body (31). One side of the first pump body (31) is fixedly connected to an inlet pipe (32), and the other side of the first pump body (31) is fixedly connected to an inlet pipe (33). The top inner wall of the first pump body (31) is fixedly connected to a diversion plate (34), and the inlet pipe (33) communicates with the diversion groove opened inside the diversion plate (34).

4. The wastewater treatment equipment for oilfield fracturing fluid production according to claim 3, characterized in that: The bottom of the diversion plate (34) is fixedly connected to a spray head (35), and there are multiple spray heads (35).

5. The wastewater treatment equipment for oilfield fracturing fluid production according to claim 1, characterized in that: A neutralization assembly is provided on one side of the wastewater treatment tank (1). The neutralization assembly includes a second pump body (4) fixedly connected to one side of the wastewater treatment tank (1). A connecting pipe (41) is fixedly connected to one side of the second pump body (4). An acidic neutralizing agent storage tank (42) and an alkaline neutralizing agent storage tank (43) are provided below the connecting pipe (41). The alkaline neutralizing agent storage tank (43) is fixedly connected to the rear side of the acidic neutralizing agent storage tank (42). The interior of the second pump body (4) is connected to a first inlet pipe (44), and the interior of the alkaline neutralizing agent storage tank (43) is connected to a second inlet pipe (45). One end of the first inlet pipe (44) and the second inlet pipe (45) extends into the interior of the connecting pipe (41). The front and rear sides of the second pump body (4) are fixedly connected to a diversion pipe (47). The interior of the diversion pipe (47) is connected to a spray pipe (48), and one end of the spray pipe (48) extends into the interior of the wastewater treatment tank (1).

6. The wastewater treatment equipment for oilfield fracturing fluid production according to claim 5, characterized in that: The first liquid inlet pipe (44) and the second liquid inlet pipe (45) are both connected to a first valve (46), and there are multiple spray pipes (48).

7. The wastewater treatment equipment for oilfield fracturing fluid production according to claim 1, characterized in that: A drain pipe (5) is fixedly connected to the other side of the wastewater treatment tank (1), and a second valve (6) is connected inside the drain pipe (5).

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