Negative pressure jet type powdery material premixing device

Abstract

The utility model discloses a negative pressure jet type powdery material premixing device, which comprises a fast pipeline, a funnel, a filter screen, a valve, a jet nozzle and a stop dog, the top pipe wall of the fast pipeline is communicated with a feed pipe, the bottom of the funnel is communicated with the top of the feed pipe, the filter screen is arranged at the position of a discharge port of the funnel, and the valve is arranged at the position of the discharge port of the funnel. The valve is arranged on the feeding pipe, the jet nozzle is coaxially arranged in the quick channel, two openings of the jet nozzle are respectively positioned on two sides of the feeding pipe, the diameter of the jet nozzle is sequentially decreased along the flowing direction of fluid in the quick channel, and the stop block is of a circular structure. According to the utility model, not only is the phenomenon that the filter screen is blocked or caking is caused when powdery materials are filled into liquid effectively avoided, but also the powdery materials are adsorbed by negative pressure, so that the pollution of the powdery materials to the environment in the charging process can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil drilling, in particular to a negative pressure jet type powder material premixing device. Background Art

[0002] During the oil drilling process, there are a lot of powdered drilling fluid materials, cementing powdered materials, etc., which need to be added to the liquid for hydration before use. The traditional way of adding materials is to add materials directly into the filling liquid through a feeding funnel. This method will cause the filter to be blocked, or the powdered materials are added to the liquid. Because there is no time for hydration, they will cause lumps in the liquid. It takes a long time to circulate to dissolve the lumps. In severe cases, the lumps cannot be dissolved, thereby clogging the butterfly valve of the equipment. In addition, due to the agglomeration, the performance of the chemicals cannot meet expectations. Summary of the invention

[0003] In view of the above problems existing in the existing feeding method, the present invention aims to provide a negative pressure injection type powder material premixing device which can avoid material clogging of the filter screen, avoid material agglomeration and reduce environmental pollution.

[0004] The specific technical solutions are as follows:

[0005] A negative pressure jet type powder material premixing device, comprising:

[0006] A fast pipeline, the fast pipeline is used for fast fluid to pass through, and a feed pipe is connected to the top pipe wall of the fast pipeline;

[0007] A funnel, the bottom of which is connected to the top of the feed pipe and is used to accommodate powdered materials;

[0008] A filter screen, which is arranged at the discharge port of the funnel and is used to filter the powdered material;

[0009] A valve, which is disposed on the feed pipe and is used to open or close the feed pipe;

[0010] An injection nozzle, wherein the injection nozzle is coaxially arranged in the fast channel, and two openings of the injection nozzle are respectively located on both sides of the feed pipe, and the diameter of the injection nozzle decreases successively along the flow direction of the fluid in the fast channel;

[0011] The stopper is a circular structure and is located at the minimum opening of the spray nozzle, and the diameter of the stopper is smaller than the minimum opening diameter of the spray nozzle.

[0012] As a further improvement and optimization of this solution, the stopper is coaxially arranged with the injection nozzle.

[0013] As a further improvement and optimization of this solution, a support frame is provided in the injection nozzle, and the stopper is connected to the support frame via a support rod.

[0014] As a further improvement and optimization of this solution, the valve is a butterfly valve.

[0015] As a further improvement and optimization of the present solution, the maximum opening diameter of the injection nozzle matches the inner diameter of the fast pipeline.

[0016] As a further improvement and optimization of this solution, the top side wall of the funnel has a bracket.

[0017] As a further improvement and optimization of this solution, a water pump is also included, wherein the outlet of the water pump is connected to an opening of the fast pipeline close to the maximum opening end of the injection nozzle, so as to transport high-speed fluid into the fast pipeline.

[0018] Compared with the prior art, the above technical solution has the following positive effects:

[0019] The utility model relates to a water pump which, driven by a motor, allows the fluid to quickly pass through the fast channel. When passing through the injection nozzle, the fluid will be ejected in a jet shape due to the decreasing structure of the inner diameter. When sprayed onto the block, the fluid will be ejected forward in a fan shape to the inner wall of the fast pipe, thereby forming a negative pressure area around the injection nozzle. Under this negative pressure, the powdered material in the funnel will quickly move downward and quickly mix and dissolve with the fan-shaped fluid, which not only effectively avoids the clogging of the filter screen or the agglomeration phenomenon when the powdered material is added to the liquid, but also greatly reduces the pollution to the environment caused by the powdered material during the feeding process because the powdered material is adsorbed by negative pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a negative pressure jet type powder material premixing device of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of a water spray nozzle of a negative pressure spray type powder material premixing device of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of a filter screen of a negative pressure jet type powder material premixing device of the utility model;

[0023] In the attached figure: 1. quick pipe; 2. funnel; 3. valve; 4. filter screen; 5. injection nozzle; 6. block; 7. support frame; 8. support rod; 21. bracket. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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.

[0025] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Figure 1 This is a schematic diagram of the structure of a negative pressure jet powder material premixing device of the utility model. Figure 2 This is a schematic diagram of the structure of a water spray nozzle of a negative pressure spray type powder material premixing device of the utility model. Figure 3 The structure diagram of the filter screen of the negative pressure jet powder material premixing device of the utility model is as follows: Figure 1-3 As shown, a negative pressure injection powder material premixing device of a preferred embodiment is shown, including a fast pipeline 1, a funnel 2, a filter 4, a valve 3, a spray nozzle 5 and a stopper 6. The fast pipeline 1 is used for fast fluid passage. A feed pipe is connected on the top pipe wall of the fast pipeline 1. The bottom of the funnel 2 is connected to the top of the feed pipe for accommodating powder materials. The filter 4 is arranged at the discharge port of the funnel 2 for filtering the powder materials. The valve 3 is arranged on the feed pipe for opening or closing the feed pipe. The spray nozzle 5 is coaxially arranged in the fast channel, and the two openings of the spray nozzle 5 are respectively located on both sides of the feed pipe, and the diameter of the spray nozzle 5 decreases successively along the flow direction of the fluid in the fast channel. The stopper 6 is a circular structure and is located at the minimum opening of the spray nozzle, and the diameter of the stopper 6 is smaller than the minimum opening diameter of the spray nozzle 5.

[0028] Further, as a preferred embodiment, the stopper 6 is coaxially arranged with the injection nozzle 5 .

[0029] Furthermore, as a preferred embodiment, a support frame 7 is provided inside the injection nozzle 5 , and the stopper 6 is connected to the support frame 7 via a support rod 8 .

[0030] Furthermore, as a preferred embodiment, the valve 3 is a butterfly valve.

[0031] Furthermore, as a preferred embodiment, the maximum opening diameter of the injection nozzle 5 matches the inner diameter of the fast pipe 1 .

[0032] Furthermore, as a preferred embodiment, the top side wall of the funnel 2 has a bracket 21 .

[0033] Furthermore, as a preferred embodiment, it also includes a water pump, the outlet of which is connected to an opening of the fast pipe 1 close to the maximum opening end of the injection nozzle 5, for conveying high-speed fluid into the fast pipe 1.

[0034] In this embodiment, the water pump is driven by the motor to make the flow pass through the fast channel quickly. When passing through the injection nozzle 5, due to the decreasing inner diameter structure, the flow will be ejected in a jet shape. When sprayed onto the block 6, the fluid is sprayed forward in a fan shape to the inner wall of the fast pipe 1, thereby forming a negative pressure area around the injection nozzle 5. Under this negative pressure, the powdered material in the funnel 2 will move downward quickly and quickly mix and dissolve with the fan-shaped fluid, which not only effectively avoids the powdered material from clogging the filter 4 or causing agglomeration when adding the liquid, but also because the powdered material is adsorbed by negative pressure, it can also greatly reduce the pollution caused to the environment by the powdered material during the feeding process.

[0035] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A negative pressure spray type powder material premixing device, characterized in that: include: A fast pipeline, the fast pipeline is used for fast fluid to pass through, and a feed pipe is connected to the top pipe wall of the fast pipeline; A funnel, the bottom of which is connected to the top of the feed pipe and is used to accommodate powdered materials; A filter screen, which is arranged at the discharge port of the funnel and is used to filter the powdered material; A valve, which is disposed on the feed pipe and is used to open or close the feed pipe; An injection nozzle, wherein the injection nozzle is coaxially arranged in the fast pipeline, and two openings of the injection nozzle are respectively located on both sides of the feed pipe, and the diameter of the injection nozzle decreases successively along the flow direction of the fluid in the fast pipeline; The stopper is a circular structure and is located at the minimum opening of the injection nozzle, and the diameter of the stopper is smaller than the minimum opening diameter of the injection nozzle.

2. The negative pressure spray type powder material premixing device according to claim 1, characterized in that: The stopper is coaxially arranged with the injection nozzle.

3. The negative pressure spray type powder material premixing device according to claim 2, characterized in that: A support frame is provided in the injection nozzle, and the stopper is connected to the support frame through a support rod.

4. The negative pressure spray type powder material premixing device according to claim 1, characterized in that: The valve is a butterfly valve.

5. The negative pressure spray type powder material premixing device according to claim 1, characterized in that: The maximum opening diameter of the injection nozzle matches the inner diameter of the fast pipe.

6. The negative pressure spray type powder material premixing device according to claim 1, characterized in that: The top side wall of the funnel has a bracket.

7. The negative pressure spray type powder material premixing device according to claim 1, characterized in that: It also includes a water pump, the outlet of which is connected to an opening of the fast pipeline close to the maximum opening end of the injection nozzle, and is used to transport high-speed fluid into the fast pipeline.

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