A water tank cleaning device for oil field fracturing operation

Abstract

The utility model discloses a kind of oilfield fracturing operation water tank cleaning device, it is related to oilfield exploitation technical field, and it includes: dredger, unloading tank;The top of unloading tank is provided with inlet and gas outlet, bottom is provided with discharge port;The upper side center of unloading tank is fixedly provided with servo motor, the transmission rod of servo motor passes through the top center of unloading tank downwards, and enters the inside of unloading tank;Transmission rod's side is fixedly provided with several horizontal stirring rods, bottom is fixedly provided with concave stirring rod, the shape of concave stirring rod is compatible with the bottom section shape of unloading tank;The silt outlet of dredger is communicated with the inlet of unloading tank by pipeline.This application is by setting horizontal stirring rod and concave stirring rod, the shape of concave stirring rod is compatible with the bottom section shape of unloading tank, to carry out all-around stirring to the inside of unloading tank, improve unloading efficiency.

Description

Technical Field

[0001] This application relates to the field of oilfield development technology, and in particular to a tank cleaning device for oilfield fracturing operations. Background Technology

[0002] In oilfield fracturing operations, water tanks, as large containers for storing fracturing fluid and circulating water, directly impact operational efficiency and equipment safety due to their cleanliness. Over time, the inner walls of these tanks easily accumulate sludge, gravel, and chemical additive residues, forming a stubborn layer of fouling. These deposits not only reduce the effective volume of the water tank, leading to an imbalance in the fracturing fluid mix, but may also corrode the tank's metal structure, posing a risk of leakage. Therefore, research is needed on water tank cleaning devices for oilfield fracturing operations.

[0003] In the prior art, Chinese patent CN217616619U discloses a tank cleaning device for water tanks in oil and gas field operations, including a collection and cutting machine for collecting and cutting sediment at the bottom of the tank, a discharger for unloading sediment, and multiple buffer tanks for sedimentation and separation.

[0004] However, the existing technology described above, after conveying the sediment at the bottom of the water tank to the unloader, although a stirrer is installed in the unloader, cannot perform all-round stirring, and the sediment still has the risk of agglomeration and solidification, resulting in low unloading efficiency. Utility Model Content

[0005] This application provides a tank cleaning device for water tanks used in oilfield fracturing operations, which solves the problem that the unloader of existing tank cleaning devices for water tanks used in oilfield fracturing operations cannot perform all-round mixing and has low unloading efficiency.

[0006] On the one hand, this application provides a tank cleaning device for oilfield fracturing operations, including: a sludge removal machine for collecting sediment in the tank and a discharge tank for discharging sediment.

[0007] The unloading tank is provided with an inlet and an outlet at the top, and an outlet at the bottom.

[0008] A servo motor is fixedly installed at the center of the upper side of the unloading tank. The transmission rod of the servo motor passes downward through the center of the top of the unloading tank and enters the interior of the unloading tank.

[0009] Several transverse stirring rods are fixedly installed on the side of the transmission rod, and a concave stirring rod is fixedly installed at the bottom. The shape of the concave stirring rod is adapted to the bottom cross-sectional shape of the unloading tank.

[0010] The sludge discharge port of the dredging machine is connected to the feed inlet of the unloading tank via a pipeline.

[0011] In one possible implementation, the lower the bottom of the unloading tank is, the closer it is to the discharge port.

[0012] In one possible implementation, all the transverse stirring rods have different heights.

[0013] In one possible implementation, several scrapers are fixedly provided on the lower sides of the two sides of the concave stirring rod.

[0014] The bottom of the scraper slides in contact with the bottom of the unloading tank.

[0015] In one possible implementation, all scrapers have different heights.

[0016] In one possible implementation, the air outlet is detachably equipped with a filter mechanism for filtering the gas discharged from the air outlet.

[0017] In one possible implementation, the air filtration mechanism includes an air filter cover.

[0018] The filter cover is detachably connected to the air outlet.

[0019] The filter cover is provided with filter holes.

[0020] In one possible implementation, a filter element is fixedly disposed on the lower side of the filter cover.

[0021] In one possible implementation, the discharge port of the unloading tank is connected to a sludge pump.

[0022] The oilfield fracturing operation water tank cleaning device disclosed in this application has the following advantages:

[0023] By setting up horizontal stirring rods and concave stirring rods, the shape of which is adapted to the bottom cross-sectional shape of the unloading tank, the interior of the unloading tank is stirred in all directions, thereby improving the unloading efficiency.

[0024] The closer the bottom of the unloading tank is to the discharge port, the lower its height, which helps guide the sediment towards the discharge port.

[0025] All the proposed transverse stirring rods have different heights, which increases the stirring range of the transverse stirring rods.

[0026] Several scrapers are fixedly installed on the lower side of the two sides of the proposed concave stirring rod. The bottom of the scrapers slides in contact with the bottom of the unloading tank, which further improves the unloading efficiency.

[0027] The different heights of all the scrapers increase the mixing range at the bottom of the unloading tank and reduce dead corners for bottom accumulation.

[0028] The proposed air outlet is detachably equipped with a filter mechanism, which is used to filter the gas discharged from the outlet, thus improving environmental friendliness.

[0029] The proposed air filtration mechanism includes: an air filter cover; the air filter cover is detachably connected to the air outlet; and the air filter cover is provided with air filter holes. This improves the ease of replacing the air filter mechanism.

[0030] The filter element is fixedly installed on the lower side of the proposed air filter cover, and the filter element can be replaced by replacing the air filter cover. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of a water tank cleaning device for oilfield fracturing operations provided in this application embodiment;

[0033] Figure 2 This is a schematic diagram of the air filtration mechanism provided in an embodiment of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1- Dredging machine, 2- Unloading tank, 21- Feed inlet, 22- Air outlet, 23- Discharge outlet, 24- Servo motor, 241- Transmission rod, 242- Horizontal stirring rod, 243- Concave stirring rod, 244- Scraper, 25- Air filtration mechanism, 251- Air filter cover, 252- Air filter hole, 253- Filter element. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] like Figure 1 As shown in the figure, this application provides a tank cleaning device for oilfield fracturing operations, including: a sludge removal machine 1 for collecting sediment in the tank and a discharge tank 2 for discharging sediment.

[0038] The top of the unloading tank 2 is provided with a feed inlet 21 and an air outlet 22, and the bottom is provided with a discharge outlet 23.

[0039] A servo motor 24 is fixedly installed at the center of the upper side of the unloading tank 2. The transmission rod 241 of the servo motor 24 passes downward through the center of the top of the unloading tank 2 and enters the interior of the unloading tank 2.

[0040] A plurality of transverse stirring rods 242 are fixedly provided on the side of the transmission rod 241, and a concave stirring rod 243 is fixedly provided at the bottom. The shape of the concave stirring rod 243 is adapted to the bottom cross-sectional shape of the unloading tank 2.

[0041] The sludge outlet of the dredging machine 1 is connected to the inlet 21 of the unloading tank 2 via a pipeline.

[0042] Specifically, in this embodiment, the dredging machine 1 adopts an existing water tank dredging robot. The working part of the dredging machine 1 is equipped with a high-pressure water nozzle to disperse the sediment in the water tank for easy collection.

[0043] For example, the lower the bottom of the unloading tank 2 is, the closer it is to the discharge port 23.

[0044] For example, all the transverse stirring rods 242 have different heights.

[0045] Specifically, in this embodiment, four horizontal stirring rods 242 are provided. In other possible embodiments, other numbers of horizontal stirring rods 242 may be provided as needed.

[0046] For example, a plurality of scrapers 244 are fixedly provided on the lower side of the two sides of the concave stirring rod 243.

[0047] The bottom of the scraper 244 slides in contact with the bottom of the unloading tank 2.

[0048] Specifically, in this embodiment, two scrapers 244 are fixedly provided on the lower sides of the two sides of the concave stirring rod 243. In other possible embodiments, other numbers of scrapers 244 may be provided as needed.

[0049] For example, all scrapers 244 have different heights.

[0050] Specifically, by setting the scraper 244 at different heights of the concave stirring rod 243, the bottom stirring range of the unloading tank 2 is increased, and the bottom accumulation dead corner is reduced.

[0051] like Figure 2 As shown, by way of example, the air outlet 22 is detachably provided with an air filter mechanism 25, which is used to filter the gas discharged from the air outlet 22.

[0052] For example, the air filtration mechanism 25 includes an air filter cover 251.

[0053] The filter cover 251 is detachably connected to the air outlet 22.

[0054] The filter cover 251 is provided with filter holes 252.

[0055] Specifically, in this embodiment, the filter cover 251 and the air outlet 22 are connected by threads. In other possible embodiments, a detachable connection method such as snap-fit ​​can also be used.

[0056] For example, a filter element 253 is fixedly disposed on the lower side of the filter cover 251.

[0057] In this embodiment, filter element 253 adopts an existing microporous pleated filter element.

[0058] For example, the discharge port 23 of the unloading tank 2 is connected to a sludge pump.

[0059] Specifically, in this embodiment, the workflow of the oilfield fracturing operation water tank cleaning device is as follows: The sludge removal machine 1 enters the oilfield fracturing operation water tank. First, the high-pressure water nozzle of the working part of the sludge removal machine 1 is used to disperse the sediment in the water tank. Then, the dispersed sediment is collected by the suction head of the working part and transported through the pipeline to the inlet 21 of the unloading tank 2. It enters the interior of the unloading tank 2. The servo motor 24 drives the horizontal stirring rod 242, the concave stirring rod 243, and the scraper 244 to stir the sediment inside the unloading tank 2. The sludge pump pumps the sediment from the outlet 23 of the unloading tank 2 to the treatment station for further processing. During this process, the gas filtration mechanism 25 filters the gas discharged from the gas outlet 22.

[0060] In this embodiment, a horizontal stirring rod 242 and a concave stirring rod 243 are provided. The shape of the concave stirring rod 243 is adapted to the bottom cross-sectional shape of the unloading tank 2, thereby stirring the interior of the unloading tank 2 in all directions and improving the unloading efficiency.

[0061] The lower the bottom of the unloading tank 2 is, the closer it is to the discharge port 23, which can guide the sediment to move towards the discharge port 23.

[0062] The heights of all the proposed transverse stirring rods 242 are different, which increases the stirring range of the transverse stirring rods 242.

[0063] Several scrapers 244 are fixedly installed on the lower side of the two sides of the proposed concave stirring rod 243. The bottom of the scrapers 244 slides in contact with the bottom of the unloading tank 2, which further improves the unloading efficiency.

[0064] The proposed scrapers 244 are all at different heights, which increases the bottom mixing range of the unloading tank 2 and reduces the dead corners of bottom accumulation.

[0065] The proposed air outlet 22 is detachably equipped with an air filter mechanism 25, which is used to filter the gas discharged from the air outlet 22, thereby improving environmental protection.

[0066] The proposed air filtration mechanism 25 includes: an air filter cover 251; the air filter cover 251 is detachably connected to the air outlet 22; and the air filter cover 251 is provided with air filter holes 252. This improves the ease of replacement of the air filtration mechanism 25.

[0067] A filter element 253 is fixedly installed on the lower side of the proposed air filter cover 251, and the filter element 253 can be replaced by replacing the air filter cover 251.

[0068] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0069] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. An oilfield fracturing job tank cleaning apparatus, characterized by, include: A sludge removal machine for collecting sediment in water tanks and an unloading tank for discharging sediment; The top of the unloading tank is provided with a feed inlet and an air outlet, and the bottom is provided with a discharge outlet; A servo motor is fixedly installed at the center of the upper side of the unloading tank. The transmission rod of the servo motor passes downward through the center of the top of the unloading tank and enters the interior of the unloading tank. Several transverse stirring rods are fixedly installed on the side of the transmission rod, and a concave stirring rod is fixedly installed at the bottom. The shape of the concave stirring rod is adapted to the bottom cross-sectional shape of the unloading tank. The sludge discharge port of the dredging machine is connected to the feed inlet of the unloading tank via a pipeline.

2. A tank cleaning apparatus for oilfield fracturing service water tanks as defined in claim 1, characterized in that, The lower the bottom of the unloading tank is, the closer it is to the discharge port.

3. The oilfield fracturing operation water tank cleaning device according to claim 1, characterized in that, All the horizontal stirring rods are at different heights.

4. The oilfield fracturing operation water tank cleaning device according to claim 1, characterized in that, Several scrapers are fixedly installed on the lower side of the two sides of the concave stirring rod; The bottom of the scraper slides in contact with the bottom of the unloading tank.

5. A tank cleaning device for water tanks used in oilfield fracturing operations according to claim 4, characterized in that, All scrapers are at different heights.

6. The oilfield fracturing operation water tank cleaning device according to claim 1, characterized in that, The air outlet is detachably equipped with an air filtration mechanism, which is used to filter the gas discharged from the air outlet.

7. A tank cleaning device for water tanks used in oilfield fracturing operations according to claim 6, characterized in that, The air filtration mechanism includes: an air filter cover; The filter cover is detachably connected to the air outlet; The filter cover is provided with filter holes.

8. A tank cleaning device for water tanks used in oilfield fracturing operations according to claim 7, characterized in that, A filter element is fixedly installed on the lower side of the air filter cover.

9. A tank cleaning device for water tanks used in oilfield fracturing operations according to claim 1, characterized in that, The discharge port of the unloading tank is connected to a sludge pump.

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