Suction manifold and fracturing truck

Abstract

The utility model provides a suction manifold and a fracturing truck. The suction manifold comprises a liquid inlet pipe, a filter and a suction manifold. The filter is used for filtering foreign matters in liquid, one end of the filter is connected with the liquid inlet pipe, the other end of the filter is connected with the suction manifold, the suction manifold comprises a main pipe and a plurality of connecting pipes arranged on the main pipe, and a cleaning union is arranged on the main pipe. According to the suction manifold, foreign matters in liquid sucked by the liquid inlet pipe can be filtered, and the working efficiency and the working stability of the suction manifold are improved.

Description

Technical Field

[0001] This utility model relates to the field of fracturing truck technology, and in particular to a suction manifold and fracturing truck. Background Technology

[0002] Modern fracturing trucks must be equipped with a suction manifold for the transition connection between the fracturing pump suction end and the external fluid supply line. Traditional suction manifolds have an unreasonable design structure, with dead corners in the fluid flow pipeline that easily accumulate sand, leading to reduced suction efficiency. In addition, if the fracturing pump stops when adding sand, the inside of the traditional suction manifold becomes blocked with sand and is difficult to clean, causing the equipment to malfunction.

[0003] Utility model disclosure CN212454793U discloses a low-pressure suction and high-pressure discharge manifold system, including a low-pressure manifold comprising a suction manifold, a main manifold, and connecting pipes. One end of the suction manifold and the main manifold are connected. A connecting pipe is installed on the main manifold, and the other end of the connecting pipe is connected to the hydraulic end of a plunger pump. Each connecting pipe is equipped with a union. The output end of the connecting pipe is connected to the hydraulic end of the plunger pump via a connecting flange. However, when sand is added to the low-pressure manifold, the pump stops. The suction manifold and main manifold become clogged with sand, making cleaning difficult and preventing normal operation of the equipment. Furthermore, the unions on the connecting pipes increase the overall height of the suction manifold, increasing its internal volume and reducing the plunger pump's suction efficiency. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a suction manifold and fracturing truck that can filter foreign objects from the liquid sucked in through the inlet pipe, thereby improving the working efficiency and stability of the suction manifold.

[0005] To achieve the above objectives, this utility model provides an inhalation manifold, comprising an inlet tube, a filter, and an inhalation manifold connected in sequence;

[0006] The filter is used to filter foreign objects in the liquid, and the suction manifold includes a main pipe and several connecting pipes disposed on the main pipe, and the main pipe is provided with a cleaning manifold.

[0007] In this invention, the inlet pipe is connected to the external supply pipe, and the filter is set in front of the suction manifold to filter foreign objects in the liquid sucked in by the inlet pipe. This ensures that the suction manifold is not contaminated or blocked by foreign objects, and that sand will not accumulate during use, thus improving suction efficiency.

[0008] The cleaning union of the suction manifold is located on the main pipe. This structure reduces the overall height of the suction manifold, thereby decreasing its internal volume and allowing the liquid to fill more easily, improving the suction efficiency of the fracturing pump on the fracturing truck. Simultaneously, the cleaning union's proximity to the outlet of the connecting pipe above facilitates cleaning of the connecting pipe. If the pump stops during sand addition, causing sand accumulation inside the suction manifold, cleaning the filter, suction manifold, and inlet pipe allows for rapid resumption of operation, restoring normal working conditions in a short time, thus improving equipment efficiency and maintainability. The main pipe of the suction manifold transitions smoothly from thick to thin towards the end as the connecting pipe decreases, ensuring a consistently high flow rate of liquid within the suction manifold and preventing sand accumulation.

[0009] Optionally, the inhalation manifold further includes a pressure damper disposed between the filter and the inhalation manifold, and connected to both respectively.

[0010] A pressure buffer is installed in front of the suction manifold to absorb pressure fluctuations from the external fluid supply, thereby ensuring a stable pressure supply from the suction manifold and guaranteeing stable and unobstructed suction from the fracturing pump of the fracturing truck. A filter is located in front of the pressure buffer to ensure that it is not contaminated or clogged by foreign objects.

[0011] Optionally, the main pipe is provided with a plurality of cleaning unions, each corresponding to a connecting pipe, so that the connecting pipe can be cleaned by the corresponding cleaning union.

[0012] Optionally, a second valve is provided at the end of the main pipe to facilitate the drainage of submerged water inside the main pipe.

[0013] Optionally, the bottom surface of the main pipe is inclined, and the diameter of the main pipe gradually decreases from the inlet to the outlet.

[0014] The bottom of the main pipe is inclined to the horizontal plane, with a low intake and high discharge structure, which can effectively prevent sand from being sucked into the manifold.

[0015] Optionally, the height of the suction manifold gradually increases from the inlet pipe to the suction manifold, and there are no abrupt changes in pipe diameter within the pipeline channel formed by the inlet pipe, filter, and suction manifold.

[0016] Optionally, the filter is provided with a union cover, which is opened to clean foreign objects from inside the filter.

[0017] Optionally, the inlet pipe is connected to the filter via a flexible tube, with the inlet of the flexible tube lower than the outlet.

[0018] The filter and the inlet pipe are connected by a flexible tube for easy disassembly; the inlet of the flexible tube is lower than the outlet to prevent sand accumulation; if the pump stops during sand addition and causes sand blockage inside the flexible tube, a new flexible tube can be quickly replaced to resume operation; after the flexible tube is disassembled, the outlet of the inlet pipe and the inlet of the filter can be cleaned, and the external coarse supply pipe can also be directly installed on the inlet of the filter; at the same time, the use of a flexible tube can also reduce the requirements for the accuracy of the inlet pipe assembly position.

[0019] Optionally, the inlet pipe is provided with a first valve for opening and closing the inlet pipe.

[0020] This utility model also provides a fracturing truck equipped with the above-mentioned suction manifold.

[0021] Beneficial effects:

[0022] The suction manifold of this invention includes an inlet pipe, a filter, and a suction manifold. The inlet pipe is connected to an external supply pipe, and the filter is located in front of the suction manifold to filter foreign objects in the liquid sucked in by the inlet pipe. This ensures that the suction manifold is not contaminated or blocked by foreign objects, and that sand will not accumulate during use, thus improving suction efficiency.

[0023] The cleaning union of the suction manifold is located on the main pipe. This structure reduces the overall height of the suction manifold, thereby decreasing its internal volume and allowing the liquid to fill more easily, improving the suction efficiency of the fracturing pump on the fracturing truck. Simultaneously, the cleaning union's proximity to the outlet of the connecting pipe above facilitates cleaning of the connecting pipe. If the pump stops during sand addition, causing sand accumulation inside the suction manifold, cleaning the filter, suction manifold, and inlet pipe allows for rapid resumption of operation, restoring normal working conditions in a short time, thus improving equipment efficiency and maintainability. The main pipe of the suction manifold transitions smoothly from thick to thin towards the end as the connecting pipe decreases, ensuring a consistently high flow rate of liquid within the suction manifold and preventing sand accumulation.

[0024] The suction manifold of this invention adopts a structure in which the liquid pipeline gradually increases from the inlet to the outlet. At the same time, there are no sudden changes in the diameter of the entire pipeline through which the liquid flows, thereby effectively preventing sand accumulation and improving the liquid suction efficiency of the fracturing pump. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1This is a structural diagram of the inhalation manifold disclosed in this utility model;

[0027] Figure 2 This is a structural diagram of the inhalation manifold in the inhalation manifold disclosed in this utility model;

[0028] Figure 3 This is a structural diagram of the filter section in the inhalation manifold disclosed in this utility model;

[0029] Figure 4 This is a structural diagram of the liquid inlet pipe in the suction manifold disclosed in this utility model;

[0030] Figure 5 This is a structural diagram of the pressure buffer in the inhalation manifold disclosed in this utility model;

[0031] Figure 6 This is a structural diagram of the fracturing truck disclosed in this utility model.

[0032] Figure reference numerals: 01 Suction manifold; 02 Fracturing pump; 03 Discharge manifold; 1 Inlet pipe; 11 Male union; 12 First valve; 13 First support; 14 First female union; 15 Flexible pipe; 2 Filter; 21 Second female union; 22 Second support; 23 Connecting seat; 24 First flange; 25 Union cover; 26 Mounting plate; 3 Pressure damper; 31 Third support; 4 Suction manifold; 41 Main pipe; 42 Connecting pipe; 43 Cleaning union; 44 Second flange; 45 Clamp; 46 Second valve.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0036] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] Example 1:

[0038] See Figure 1-5 According to a first embodiment of the present invention, an inhalation manifold includes an inlet pipe 1, a filter 2 and an inhalation manifold 4 connected in sequence.

[0039] The filter 2 is used to filter foreign objects in the liquid. The suction manifold 4 includes a main pipe 41 and a plurality of connecting pipes 42 disposed on the main pipe 41. The main pipe 41 is provided with a cleaning manifold 43.

[0040] Specifically, the inlet pipe 1 is connected to the external liquid supply pipe, and the filter 2 is set in front of the suction manifold 4 to filter foreign objects in the liquid sucked in by the inlet pipe 1. This ensures that the suction manifold 4 is not contaminated or blocked by foreign objects, and that sand will not accumulate during use, thus improving suction efficiency.

[0041] The cleaning manifold 43 is directly welded to the side of the main pipe 41. This structure can reduce the overall height of the suction manifold 4, thereby reducing the internal volume of the suction manifold 4, making it easier for liquid to fill the suction manifold 4, and improving the liquid suction efficiency of the fracturing pump installed on the fracturing truck. At the same time, the cleaning manifold 43 is close to the outlet of the connecting pipe 42 above, which facilitates cleaning of the connecting pipe 42.

[0042] If the pump stops during the sand adding process, causing sand to accumulate inside the suction manifold, it can be quickly restored to normal operation by cleaning the filter 2, suction manifold 4 and inlet pipe 1, thereby improving the equipment's efficiency and maintainability.

[0043] The main pipe 41 of the suction manifold 4 transitions from thick to thin uniformly from the inlet to the end as the connecting pipe 42 decreases, which can ensure that the liquid always has a high flow rate inside the main pipe 41, thereby preventing sand accumulation.

[0044] See Figure 1 and 5 In some embodiments of this utility model, the inhalation manifold further includes a pressure buffer 3, which is disposed between the filter 2 and the inhalation manifold 4 and connected to both respectively.

[0045] A pressure buffer 3 is installed in front of the suction manifold 4 to absorb pressure fluctuations from the external fluid supply, thereby ensuring a stable pressure supply from the suction manifold 4 and guaranteeing stable and unobstructed suction from the fracturing pump of the fracturing truck. A filter 2 is located in front of the pressure buffer 3 to ensure that the pressure buffer 3 is not contaminated or blocked by foreign objects.

[0046] The pressure buffer 3 is installed at a certain angle to the horizontal plane, which allows space above for the discharge manifold of the fracturing pump, and the triangular structure formed by it and the third support 31 is more stable. In this embodiment, the pressure buffer 3 is installed at a 60° angle to the horizontal plane, and the angle between the pressure buffer 3 and the horizontal plane can be adjusted as needed.

[0047] See Figure 2 In some embodiments of this utility model, the main pipe 41 is provided with a plurality of cleaning unions 43, and the cleaning unions 43 correspond one-to-one with the connecting pipes 42, so that the connecting pipes 42 can be cleaned by the corresponding cleaning unions 43.

[0048] See Figure 2 In some embodiments of this utility model, a second valve 46 is provided at the end of the main pipe 41.

[0049] The second valve 46 facilitates the connection of an external hose to drain the submerged water inside the main pipe 41. The inlet end of the suction manifold 4 is equipped with a second flange 44, which connects to the first flange 2 on the filter 2, providing good sealing and support for the filter 2. The end cap of the suction manifold 4 is installed via a clamp 45, allowing for quick installation and removal, and facilitating cleaning of the inside of the suction manifold 4.

[0050] See Figure 2 In some embodiments of this utility model, the bottom surface of the main pipe 41 is inclined, and the diameter of the main pipe 41 gradually decreases from the inlet to the outlet.

[0051] The main pipe 41 has a conical structure, and the bottom of the main pipe 41 forms a 2° angle with the horizontal plane, which is a structure with low suction and high discharge, which can effectively prevent sand from being sucked into the manifold 4.

[0052] See Figure 1 In some embodiments of this utility model, the height of the inhalation manifold gradually increases from the inlet pipe 1 to the inhalation manifold 4, and there are no abrupt changes in pipe diameter inside the pipeline channel formed by the inlet pipe 1, the filter 2 and the inhalation manifold 4.

[0053] Abrupt changes in pipe diameter include various situations, such as a sudden large change in pipe diameter, forming a step at the point of change. The step can be right-angled, curved, or gradual, and the pipe diameter can change from large to small or from small to large. Another example is a sudden large angle change in the direction of the pipe diameter.

[0054] See Figure 3 In some embodiments of this utility model, the filter 2 is provided with a union cover 25.

[0055] The filter 2 has a union cap 25 on top, which allows for easy and quick cleaning of the filter 2. The inlet end of the filter 2 is equipped with a second female union 21 for easy and quick connection to the inlet pipe 1. The outlet end of the filter 2 is connected to the second flange 44 of the suction manifold 4 via a first flange 24, thus determining the installation position of the filter 2.

[0056] After the first flange 24 at the discharge end of filter 2 is installed, the second support 22 is installed. When the second support 22 and the mounting plate 26 below are installed with bolts, they have mutually perpendicular waist holes to adjust the horizontal position. At the same time, the height of the second support 22 can be adjusted by adding or removing shims, so that the second support 22 can be installed in a suitable position. Filter 2 is fixedly installed at both ends by the first flange 24 and the second support 22, and the structure is sturdy.

[0057] The filter 2 is also provided with a connector 23 for connecting to the pressure buffer 3. The connector 23 is located at the rear of the filter 2, which can also protect the pressure buffer 3 and ensure that the pressure buffer 3 is not contaminated or blocked by foreign objects.

[0058] See Figure 1 In some embodiments of this utility model, the inlet pipe 1 and the filter 2 are connected by a flexible pipe 15, and the inlet of the flexible pipe 15 is lower than the outlet.

[0059] A flexible tube 15 connects filter 2 and inlet pipe 1 for easy disassembly. The inlet of the flexible tube 15 is lower than its outlet to prevent sand accumulation. After disassembling the flexible tube 15, the outlet of inlet pipe 1 and the inlet of filter 2 can be cleaned, or an external coarse supply pipe can be directly installed on the inlet of filter 2. Using the flexible tube 15 also reduces the precision requirements for the assembly position of inlet pipe 1. If the pump stops during sand addition, causing sand accumulation inside the suction manifold, it can be quickly restored to operation by replacing the sand-clogged flexible tube 15 and then cleaning filter 2, suction manifold 4, and inlet pipe 1.

[0060] See Figure 4 In some embodiments of this utility model, the inlet pipe 1 is provided with a first valve 12 for switching the inlet pipe 1 on and off.

[0061] The liquid inlet pipe 1 adopts a zero-sand-settling design. Its discharge end is located at the highest point, and the liquid flow path is completely flat with no structural dead corners, which can prevent sand accumulation inside the structure during the liquid supply process.

[0062] The discharge end of the inlet pipe 1 uses a first female union 14, which connects to the flexible pipe 15, allowing for quick assembly and disassembly of the flexible pipe 15. The inlet pipe 1 is installed via a first support 13, ensuring a stable structure. The inlet pipe 1 is a three-way pipe, with a first valve 12 at its suction end that can be quickly opened and closed, and a male union 11 at its suction port that allows for quick connection to an external liquid supply pipe.

[0063] In terms of overall design, the suction manifold adopts a structure in which the liquid pipeline gradually rises from the inlet to the outlet. At the same time, there are no sudden changes in the diameter of the pipes through which the liquid flows, which effectively prevents sand accumulation and improves the liquid suction efficiency of the fracturing pump.

[0064] Example 2:

[0065] See Figure 6 According to a second embodiment of the present invention, a fracturing truck is equipped with the aforementioned suction manifold. The low-pressure manifold system of the fracturing truck includes a fracturing pump 02, a discharge manifold 03, and the aforementioned suction manifold 01. The suction manifold 01 is connected to the inlet of the fracturing pump 02, and the discharge manifold 03 is connected to the outlet of the fracturing pump 02. The fracturing pump 02 is a plunger pump, ensuring smooth liquid discharge. Sand accumulation is prevented inside the suction manifold 01, while also ensuring the large displacement of the fracturing truck.

[0066] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An inhalation manifold, characterized in that, It includes an inlet pipe (1), a filter (2), and a suction manifold (4) connected in sequence; The filter (2) is used to filter foreign objects in the liquid sucked in by the inlet pipe (1). The suction manifold (4) includes a main pipe (41) and several connecting pipes (42) provided on the main pipe (41). The main pipe (41) is provided with a cleaning manifold (43).

2. The inhalation manifold according to claim 1, characterized in that, The inhalation manifold also includes a pressure buffer (3), which is located between the filter (2) and the inhalation manifold (4) and connected to both respectively.

3. The inhalation manifold according to claim 1, characterized in that, The main pipe (41) is provided with a number of cleaning unions (43), and the cleaning unions (43) correspond one-to-one with the connecting pipe (42).

4. The inhalation manifold according to claim 1, characterized in that, The main pipe (41) is equipped with a second valve (46) at its end.

5. The inhalation manifold according to claim 1, characterized in that, The bottom surface of the main pipe (41) is inclined, and the diameter of the main pipe (41) gradually decreases from the inlet to the outlet.

6. The inhalation manifold according to claim 1, characterized in that, The height of the inhalation manifold gradually increases from the inlet pipe (1) to the inhalation manifold (4), and there are no abrupt changes in pipe diameter inside the pipeline channel formed by the inlet pipe (1), the filter (2) and the inhalation manifold (4).

7. The inhalation manifold according to any one of claims 1-6, characterized in that, The filter (2) is provided with a union cover (25), which is opened to clean foreign objects inside the filter (2).

8. The inhalation manifold according to any one of claims 1-6, characterized in that, The inlet pipe (1) and the filter (2) are connected by a flexible pipe (15), with the inlet of the flexible pipe (15) being lower than the outlet.

9. The inhalation manifold according to any one of claims 1-6, characterized in that, The inlet pipe (1) is provided with a first valve (12) for opening and closing the inlet pipe (1).

10. A fracturing truck, characterized in that, The inhalation manifold is installed according to any one of claims 1-9.

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