Water injection pump with leaked water recovery device

Abstract

The utility model discloses a water injection pump with a leaked water recovery device, which belongs to the technical field of water injection pump leaked water recovery and comprises a water injection pump, a water guide disc which is inclined downwards is arranged below the water injection pump, and the bottom of one end, far away from the water injection pump, of the water guide disc is connected with a closed water collection tank through a water guide pipe; the side wall of the bottom of the closed water collecting tank is connected with a primary filtering device through a water outlet pipe; one end, far away from the water outlet pipe, of the primary filtering device is connected with a secondary filtering device through a connecting pipe; a water feeding pump and an electromagnetic valve are arranged on the water outlet pipe; the water injection pump is arranged on the supporting table, and the water guide disc is arranged on the side wall of the supporting table. According to the water injection pump with the leaked water recycling device, leaked water is recycled, and resource waste, environmental pollution and damage to equipment are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to water injection pump leakage water recovery technical field especially relates to a water injection pump with leakage water recovery device. BACKGROUND

[0002] In the oilfield work process, often adopt water injection development mode to guarantee formation pressure, improve oil recovery, and the water injection pump used in oilfield can exist leakage water situation:

[0003] 1) the shaft seal, mechanical seal and other components of the pump will be worn due to friction after long time operation. For example, the sealing ring between the impeller and the pump shell, when its wear exceeds a certain limit, will cause the water in the pump to leak out from the sealing place.

[0004] 2) the sealing element of rubber, plastic and other materials will age with time and lose elasticity and sealing performance. For example, the aged O-ring cannot closely fit in the component connection, thereby causing water leakage.

[0005] 3) if the sealing element is not installed according to the correct method and requirement, for example, the sealing element is installed too tight or too loose, or the sealing element is damaged during installation, all of which will greatly reduce the sealing effect and cause water leakage.

[0006] The above leakage water not only causes resource waste, but also can cause environmental pollution and equipment safety hazard, such as: the leakage water accumulates in the pump foundation pit or steel base for a long time, causing foundation settlement or metal structure corrosion; the leakage water flows into the plant rainwater pipe network or sewage tank through the ditch, and the oil content will cause environmental pollution; the leakage water can directly infiltrate into the soil, causing salinization or polluting groundwater. Based on this, the utility model provides a water injection pump with leakage water recovery device. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at providing a water injection pump with leakage water recovery device to solve the above problems.

[0008] To solve the above technical problems, the utility model adopts the following technical scheme:

[0009] The utility model discloses a water injection pump with leakage water recovery device, including water injection pump, the water injection pump below is provided with the water guide disc inclined to the downside, the water guide disc is away from the bottom of one end of water injection pump and is connected with the closed type water collecting tank through the water guide pipe, the bottom side wall of closed type water collecting tank is connected with primary filter device through the water outlet pipe, the end of primary filter device is connected with secondary filter device through the connecting pipe, away from the water outlet pipe, the water outlet pipe is provided with the water pump and solenoid valve, the water injection pump is arranged on the support platform, the water guide disc is arranged on the side wall of support platform.

[0010] Further, the water guide disc comprises an open box structure, a hopper-shaped water inlet is arranged at the bottom of the open box structure away from the water injection pump, and the lower end of the hopper-shaped water inlet is connected with the water guide pipe.

[0011] Further, the bottom of the open box structure is symmetrically provided with arc-shaped flow guide plates at the front and back sides away from the water injection pump.

[0012] Further, the primary filter device is provided with a mesh filter cartridge.

[0013] Further, the secondary filter device comprises a folded filter core and an activated carbon filter core arranged coaxially, the folded filter core is arranged outside the activated carbon filter core, a sealing assembly is arranged between the upper and lower ends of the folded filter core and the shell of the secondary filter device, the upper end of the folded filter core is provided with an upper mounting ring, the upper end of the activated carbon filter core is provided with a clamping mounting ring matched with the upper mounting ring, and a clamping assembly is arranged between the upper mounting ring and the clamping mounting ring.

[0014] Further, the clamping assembly comprises a plurality of circumferentially distributed clamping blocks arranged on the outer wall of the clamping mounting ring, a clamping groove matched with the clamping blocks is arranged on the upper mounting ring, and a limiting cavity is arranged on the inner wall of the clamping groove in the counterclockwise direction.

[0015] Further, a sealing assembly is arranged between the upper mounting ring and the clamping mounting ring.

[0016] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0017] The water injection pump with a leakage water recycling device collects the leakage water into the closed water collecting tank to avoid pollution caused by volatilization, filters out large particle impurities through the primary filter device, separates oil and water through the secondary filter device, and finally re-injects the qualified water into the system or is used for equipment cooling and ground washing. In summary, the water injection pump with a leakage water recycling device recycles and processes the leakage water, avoids resource waste, environmental pollution and damage to equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described below in combination with the drawings.

[0019] Figure 1 It is a front view of the water injection pump with a leakage water recycling device.

[0020] Figure 2 It is a schematic view of the water guide disc structure.

[0021] Figure 3 It is a schematic view of the mesh filter cartridge structure.

[0022] Figure 4 It is a secondary filter device internal structure schematic diagram;

[0023] Figure 5 It is a card slot structure schematic diagram;

[0024] Marked for: 1, water injection pump; 2, water guide disc; 3, closed water collecting tank; 4, support table; 5, water guide pipe; 6, water pump; 7, water outlet pipe; 8, electromagnetic valve; 9, connecting pipe; 10, primary filter device; 11, secondary filter device;

[0025] 201, open box structure; 202, flow guide plate; 203, bucket-shaped water inlet;

[0026] 1001, grid filter cartridge;

[0027] 1101, folding filter element; 1102, activated carbon filter element; 1103, upper mounting ring; 1104, clamping mounting ring; 1105, central water outlet hole; 1106, clamping block; 1107, clamping groove; 1109, limiting cavity. DETAILED DESCRIPTION

[0028] As Figures 1-5 shown, a water injection pump with a leakage water recovery device, comprising a water injection pump 1, the lower part of the water injection pump 1 is installed with a downwardly inclined water guide disc 2, the inclined design guides the water flow. The water guide disc 2 comprises an open box structure 201, the bottom of the open box structure 201 is provided with a bucket-shaped water inlet 203 away from one end of the water injection pump 1, and the lower end of the bucket-shaped water inlet 203 is connected with the water guide pipe 5. The bottom of the open box structure 201 is symmetrically provided with arc-shaped flow guide plates 202 on the front and rear sides away from one end of the water injection pump 1, which guides the water flow to flow in a specific direction. The bucket-shaped water inlet 203 effectively collects the leakage water from the inside of the open box structure 201, so that the leakage water quickly flows into the pipeline below, avoiding the formation of water accumulation on the plane of the open box structure 201.

[0029] The bottom of the water guide disc 2 away from the water injection pump 1 is connected with a closed water collecting tank 3 through a water guide pipe 5. The closed water collecting tank 3 avoids the pollution caused by the volatilization of oil-containing leakage water.

[0030] The bottom side wall of the closed water collecting tank 3 is connected with a primary filter device 10 through a water outlet pipe 7, and the primary filter device 10 is provided with a grid filter cartridge 1001 for filtering out large particle impurities, which has a preliminary filtering effect.

[0031] The end of the primary filtering device 10 away from the water outlet pipe 7 is connected to the secondary filtering device 11 through a connecting pipe 9. The secondary filtering device 11 comprises a pleated filter core 1101 and an activated carbon filter core 1102 coaxially installed, and the pleated filter core 1101 is sleeved outside the activated carbon filter core 1102. The pleated filter core 1101 is generally a multi-layer structure, and the outermost layer is a coarse filter layer for intercepting larger particle impurities, and the filter layers inward are successively arranged in order of gradually increasing precision. The activated carbon filter core 1102 is usually made of activated carbon particles or activated carbon fibers, and is wrapped in an outer shell with certain strength and permeability to ensure that the water flow can fully contact the activated carbon for adsorption treatment. In addition, the pleated filter core 1101 uses glass fiber or polyester fiber as coalescence medium, and the glass fiber and polyester fiber have special surface properties and microstructure and have good adsorption and coalescence effect on petroleum substances. When petroleum-containing water passes through the pleated filter core, small oil droplets will adhere to the surface of the fiber and gradually coalesce into larger oil droplets under the action of surface tension and the like. These larger oil droplets are more easily separated from water, thereby realizing efficient oil-water separation and having remarkable removal effect on emulsified oil and dispersed oil; the glass fiber and polyester fiber have good chemical stability and are not easily corroded or affected by chemicals in the petroleum-containing water environment, and they can withstand a certain range of pH and temperature changes, are suitable for treatment of various petroleum-containing water with different properties, and have strong adaptability and reliability.

[0032] A sealing assembly is installed between the upper and lower ends of the pleated filter core 1101 and the shell of the secondary filtering device for sealing to prevent unfiltered water from entering the treated water network. An upper mounting ring 1103 is installed at the upper end of the pleated filter core 1101, a clamping mounting ring 1104 matched with the upper mounting ring 1103 is installed at the upper end of the activated carbon filter core 1102, and a clamping assembly is installed between the upper mounting ring 1103 and the clamping mounting ring 1104.

[0033] Specifically, the clamping assembly comprises a plurality of circumferentially distributed clamping blocks 1106 installed on the outer sidewall of the clamping mounting ring 1104, the upper mounting ring 1103 is provided with clamping grooves 1107 matched with the clamping blocks 1106, and the inner sidewall of the clamping grooves 1107 is provided with a limiting cavity 1109 opened in the counterclockwise direction. During installation, the clamping blocks 1106 are only needed to be aligned with the positions of the clamping grooves 1107, and then the clamping blocks 1106 are gently rotated and placed in the limiting cavities 1109 to complete the connection; during disassembly, the clamping blocks 1106 are separated from the clamping grooves 1107 by rotating the clamping blocks 1106, and the installation and disassembly can be completed without the aid of tools, which is convenient for users to regularly replace the filter core. At the same time, the clamping mode can provide relatively stable connection to ensure that the filter core will not loosen during the filtering process and affect the filtering effect.

[0034] A sealing assembly is installed between the upper mounting ring 1103 and the clamping mounting ring 1104.

[0035] The water outlet pipe 7 is provided with a water pump 6 and an electromagnetic valve 8 for water delivery and flow control.

[0036] The action process of the utility model is as follows:

[0037] First, the leaked water falls on the open box structure 201 and drops into the closed water collecting tank 3 through the water guide pipe 5 from the bucket-shaped water inlet 203; then, the electromagnetic valve 8 is opened, the water pump 6 is started, the leaked water from the closed water collecting tank 3 enters the filter device 10 through the water outlet pipe 7, and large particle impurities are filtered out under the action of the grid filter cylinder 1001; finally, the leaked water after the primary filtration enters the secondary filter device 11, the water enters from one end of the secondary filter device 11, first passes through the outer layer of the folded filter element 1101, and then passes through each layer of the folded filter element 1101 from the outside to the inside, in this process, suspended particles, colloids and other impurities in the water are gradually intercepted by the folded filter element 1101, the water filtered by the folded filter element 1101 enters the inside of the activated carbon filter element 1102, through the adsorption of activated carbon, removes odors, pigments, oils and other substances in the water, and the treated water flows out from the water outlet of the other end of the secondary filter device 11, and is re-injected into the system or used for equipment cooling and ground washing.

[0038] The above-described embodiments are only preferred modes of the utility model, and do not limit the scope of the utility model, and various deformations and improvements of the technical solutions of the utility model made by those skilled in the art without departing from the design spirit of the utility model should fall within the protection scope determined by the claims of the utility model.

Claims

1. A water injection pump having a leaked water recovery device, characterized by: The utility model provides an injection water pump, which comprises a water injection pump (1), a downwardly inclined water guide disc (2) arranged below the water injection pump (1), a closed water collecting tank (3) connected to the bottom of the end of the water guide disc (2) away from the water injection pump (1) through a water guide pipe (5), a primary filter device (10) connected to the end of the water guide disc (2) away from the water injection pump (1) through a connecting pipe (9), a water outlet pipe (7) arranged on the bottom side wall of the closed water collecting tank (3), a water pump (6) and an electromagnetic valve (8) arranged on the water outlet pipe (7), and the water injection pump (1) is arranged on a support table (4), and the water guide disc (2) is arranged on the side wall of the support table (4).

2. The injection water pump with a leaked water recovery device according to claim 1, characterized in that: The water guide disc (2) comprises an open box structure (201), a bucket-shaped water inlet (203) is formed in the bottom of the open box structure (201) away from the water injection pump (1), and the lower end of the bucket-shaped water inlet (203) is connected to the water guide pipe (5).

3. The injection water pump with a leaking water recovery device of claim 2, wherein: The bottom of the open box structure (201) is symmetrically provided with arc-shaped flow guide plates (202) on the front and rear sides away from the water injection pump (1).

4. The injection water pump with a leaking water recovery device of claim 1, wherein: The primary filter device (10) is provided with a grid filter cylinder (1001).

5. The injection water pump with a leaking water recovery device of claim 1, wherein: The secondary filter device (11) comprises a folding filter core (1101) and an activated carbon filter core (1102) arranged coaxially, the folding filter core (1101) is arranged outside the activated carbon filter core (1102), a sealing assembly is arranged between the upper and lower ends of the folding filter core (1101) and the shell of the secondary filter device, an upper mounting ring (1103) is arranged at the upper end of the folding filter core (1101), the upper end of the activated carbon filter core (1102) is provided with a clamping mounting ring (1104) matched with the upper mounting ring (1103), and a clamping assembly is arranged between the upper mounting ring (1103) and the clamping mounting ring (1104).

6. The injection water pump with a leaking water recovery device of claim 5, wherein: The clamping assembly comprises a plurality of circumferentially distributed clamping blocks (1106) arranged on the outer side wall of the clamping mounting ring (1104), the upper mounting ring (1103) is provided with clamping grooves (1107) matched with the clamping blocks (1106), and the inner side wall of the clamping grooves (1107) is provided with limit cavities (1109) formed in the counterclockwise direction.

7. The injection water pump with a leaking water recovery device of claim 5, wherein: A sealing assembly is arranged between the upper mounting ring (1103) and the clamping mounting ring (1104).

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