Mud plunger pump oil cylinder connecting device

Abstract

The utility model belongs to the technical field of plunger pump equipment, and particularly relates to a mud plunger pump oil cylinder connecting device. Comprising a connecting pipe, a left high-pressure ball valve, a right high-pressure ball valve and a lower high-pressure ball valve, the left end of the connecting pipe is used for being connected with a rodless cavity of a left oil cylinder, the right end of the connecting pipe is used for being connected with a rodless cavity of a right oil cylinder, the left high-pressure ball valve and the right high-pressure ball valve are installed on the left side and the right side of the connecting pipe respectively, and the lower high-pressure ball valve is installed in the middle of the connecting pipe. When the left oil cylinder operates abnormally, the right high-pressure ball valve is closed, the left high-pressure ball valve is opened, the lower high-pressure ball valve is opened to be connected with high-pressure gas, whether the left oil cylinder ascends or not is observed, and if the left oil cylinder ascends normally, whether the left oil cylinder breaks down or not can be judged. By adjusting opening and closing of the left high-pressure ball valve, the right high-pressure ball valve and the lower high-pressure ball valve on the connecting pipe, whether the left oil cylinder or the right oil cylinder breaks down or not can be judged, the operation and judgment modes are simple, and operators do not need to have professional maintenance skills.

Description

Technical Field

[0001] This utility model belongs to the technical field of plunger pump equipment, and specifically relates to a hydraulic cylinder connection device for a mud plunger pump. Background Technology

[0002] A mud plunger pump is a device used to transport mud and to supply pressurized mud to spray towers and granulation towers.

[0003] However, existing mud plunger pumps use two hydraulic cylinders to alternately drive two ceramic plungers up and down to transport mud. The rodless chambers of the two cylinders are connected by conventional oil pipes. The piston of the left cylinder moves downward, pushing the piston of the right cylinder upward. One piston is equipped with two check valves to replenish oil to the connecting pipe. When the piston seal or check valve fails, many field operators often lack the professional repair skills to determine which cylinder is faulty. Therefore, it is necessary to design a mud plunger pump cylinder connection device to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a mud plunger pump cylinder connection device to solve the issues raised in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mud plunger pump cylinder connecting device, comprising a connecting pipe, a left high-pressure ball valve, a right high-pressure ball valve, and a lower high-pressure ball valve. The left end of the connecting pipe is used to connect to the rodless chamber of the left cylinder, and the right end of the connecting pipe is used to connect to the rodless chamber of the right cylinder. The left high-pressure ball valve and the right high-pressure ball valve are respectively installed on the left and right sides of the connecting pipe, and the lower high-pressure ball valve is installed in the middle of the connecting pipe.

[0006] Furthermore, the mud plunger pump cylinder connecting device also includes a left straight pipe joint and a right straight pipe joint. The left and right ends of the connecting pipe are respectively connected to the left straight pipe joint and the right straight pipe joint. The left straight pipe joint is used to connect to the rodless chamber of the left cylinder, and the right end of the connecting pipe is connected to the right straight pipe joint. The right straight pipe joint is used to connect to the rodless chamber of the right cylinder.

[0007] Furthermore, the left straight pipe connector is welded to the left end of the connecting pipe, and the right straight pipe connector is welded to the right end of the connecting pipe.

[0008] Furthermore, the mud plunger pump cylinder connection device also includes a pressure gauge, which is installed on the connecting pipe.

[0009] Furthermore, the pressure gauge is installed in the middle of the upper end of the connecting pipe, the lower high-pressure ball valve is installed in the middle of the lower end of the connecting pipe, the left high-pressure ball valve is installed in the upper end of the connecting pipe and located between the pressure gauge and the left straight pipe joint, and the right high-pressure ball valve is installed in the upper end of the connecting pipe and located between the pressure gauge and the right straight pipe joint.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] By adjusting the opening and closing of the left high-pressure ball valve, right high-pressure ball valve, and lower high-pressure ball valve on the connecting pipe, it is possible to determine whether there is a fault in the left or right oil cylinder. The operation and judgment method is relatively simple and does not require the operator to have professional maintenance skills.

[0012] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and drawings. Attached Figure Description

[0013] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of the structure of the mud plunger pump cylinder connection device according to an embodiment of the present invention is shown;

[0015] Figure 2 A schematic diagram of the mud plunger pump cylinder connection device according to an embodiment of the present invention is shown.

[0016] Attached reference numerals: 1. Connecting pipe; 2. Left high-pressure ball valve; 3. Right high-pressure ball valve; 4. Lower high-pressure ball valve; 5. Left straight pipe connector; 6. Right straight pipe connector; 7. Pressure gauge; 8. Left cylinder; 9. Right cylinder. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] like Figure 1 and Figure 2 As shown in the figure, a mud plunger pump cylinder connection device according to an embodiment of the present invention includes a connecting pipe 1, a left high-pressure ball valve 2, a right high-pressure ball valve 3, and a lower high-pressure ball valve 4. The left end of the connecting pipe 1 is used to connect to the rodless chamber of the left cylinder 8, and the right end of the connecting pipe 1 is used to connect to the rodless chamber of the right cylinder 9. The left high-pressure ball valve 2 and the right high-pressure ball valve 3 are respectively installed on the left and right sides of the connecting pipe 1, and the lower high-pressure ball valve 4 is installed in the middle of the connecting pipe 1.

[0019] In this embodiment, when the left cylinder 8 is not operating properly, the right high-pressure ball valve 3 is closed, the left high-pressure ball valve 2 is opened, and the lower high-pressure ball valve 4 is opened to connect to high-pressure gas. Observe whether the left cylinder 8 moves upward. If the left cylinder 8 moves upward, it is normal, and thus it can be determined whether the left cylinder 8 is faulty.

[0020] When the right-side cylinder 9 is not operating properly, open the right high-pressure ball valve 3, close the left high-pressure ball valve 2, open the lower high-pressure ball valve 4 to connect it to high-pressure gas, and observe whether the right-side cylinder 9 moves upward. If the right-side cylinder 9 moves upward, it is normal, and thus it can be determined whether the right-side cylinder 9 is faulty.

[0021] Therefore, by adjusting the opening and closing of the left high-pressure ball valve 2, the right high-pressure ball valve 3 and the lower high-pressure ball valve 4 on the connecting pipe 1, it is possible to determine whether there is a fault in the left oil cylinder 8 or the right oil cylinder 9. The operation and judgment method is relatively simple and does not require the operator to have professional maintenance skills.

[0022] Optionally, such as Figure 1 As shown, the mud plunger pump cylinder connecting device also includes a left straight pipe joint 5 and a right straight pipe joint 6. The left and right ends of the connecting pipe 1 are respectively connected to the left straight pipe joint 5 and the right straight pipe joint 6. The left straight pipe joint 5 is used to connect to the rodless chamber of the left cylinder 8, and the right end of the connecting pipe 1 is connected to the right straight pipe joint 6. The right straight pipe joint 6 is used to connect to the rodless chamber of the right cylinder 9.

[0023] In this embodiment, by connecting the left straight pipe connector 5 and the right straight pipe connector 6 to the left and right ends of the connecting pipe 1 respectively, it is convenient to connect the left end of the connecting pipe 1 to the rodless cavity of the left cylinder 8 through the left straight pipe connector 5, thereby ensuring the stability of the connection between the left end of the connecting pipe 1 and the left cylinder 8. It is also convenient to connect the right end of the connecting pipe 1 to the rodless cavity of the right cylinder 9 through the right straight pipe connector 6, thereby ensuring the stability of the connection between the right end of the connecting pipe 1 and the right cylinder 9. Thus, the left cylinder 8 is stably connected to the left end of the connecting pipe 1 through the left straight pipe connector 5, and the right cylinder 9 is stably connected to the right end of the connecting pipe 1 through the right straight pipe connector 6. This allows the rodless cavity of the left cylinder 8 to be stably connected to the rodless cavity of the right cylinder 9 through the left straight pipe connector 5, the connecting pipe 1, and the right straight pipe connector 6, ensuring that the oil flows back and forth between the rodless cavity of the left cylinder 8, the connecting pipe 1, and the rodless cavity of the right cylinder 9.

[0024] Optionally, the left straight pipe connector 5 is welded to the left end of the connecting pipe 1, and the right straight pipe connector 6 is welded to the right end of the connecting pipe 1.

[0025] In this embodiment, by welding the left straight pipe connector 5 to the left end of the connecting pipe 1, the stability of the connection between the left straight pipe connector 5 and the left end of the connecting pipe 1 can be ensured. By welding the right straight pipe connector 6 to the right end of the connecting pipe 1, the stability of the connection between the right straight pipe connector 6 and the right end of the connecting pipe 1 can be ensured.

[0026] Optionally, such as Figure 1 and Figure 2 As shown, the mud plunger pump cylinder connection device also includes a pressure gauge 7, which is installed on the connecting pipe 1.

[0027] In this embodiment, by installing a pressure gauge 7 on the connecting pipe 1, when the mud plunger pump is running, the left high-pressure ball valve 2 and the right high-pressure ball valve 3 are opened, and the lower high-pressure ball valve 4 is closed. By observing the pressure value on the pressure gauge 7, it is possible to clearly determine whether there is a fault in the left and right oil cylinders.

[0028] Optionally, the pressure gauge 7 is installed at the middle of the upper end of the connecting pipe 1, the lower high-pressure ball valve 4 is installed at the middle of the lower end of the connecting pipe 1, the left high-pressure ball valve 2 is installed at the upper end of the connecting pipe 1 and is located between the pressure gauge 7 and the left straight pipe joint 5, and the right high-pressure ball valve 3 is installed at the upper end of the connecting pipe 1 and is located between the pressure gauge 7 and the right straight pipe joint 6.

[0029] In this embodiment, the lower high-pressure ball valve 4 is installed in the middle of the lower end of the connecting pipe 1, and the left high-pressure ball valve 2 is installed between the pressure gauge 7 and the left straight pipe connector 5. The right high-pressure ball valve 3 is installed between the pressure gauge 7 and the right straight pipe connector 6. This makes it easy to distinguish the positions of the left high-pressure ball valve 2, the right high-pressure ball valve 3, and the lower high-pressure ball valve 4, thus facilitating operation. Furthermore, by installing the pressure gauge 7 in the middle of the upper end of the connecting pipe 1, it is easy for the operator to observe the pressure gauge 7.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydraulic cylinder connection device for a mud plunger pump, characterized in that, The device includes a connecting pipe (1), a left high-pressure ball valve (2), a right high-pressure ball valve (3), and a lower high-pressure ball valve (4). The left end of the connecting pipe (1) is used to connect to the rodless chamber of the left cylinder (8), and the right end of the connecting pipe (1) is used to connect to the rodless chamber of the right cylinder (9). The left high-pressure ball valve (2) and the right high-pressure ball valve (3) are respectively installed on the left and right sides of the connecting pipe (1), and the lower high-pressure ball valve (4) is installed in the middle of the connecting pipe (1).

2. The mud plunger pump cylinder connecting device according to claim 1, characterized in that, It also includes a left straight pipe connector (5) and a right straight pipe connector (6). The left and right ends of the connecting pipe (1) are respectively connected to the left straight pipe connector (5) and the right straight pipe connector (6). The left straight pipe connector (5) is used to connect to the rodless cavity of the left cylinder (8). The right end of the connecting pipe (1) is connected to the right straight pipe connector (6). The right straight pipe connector (6) is used to connect to the rodless cavity of the right cylinder (9).

3. The mud plunger pump cylinder connecting device according to claim 2, characterized in that, The left straight pipe connector (5) is welded to the left end of the connecting pipe (1), and the right straight pipe connector (6) is welded to the right end of the connecting pipe (1).

4. The mud plunger pump cylinder connecting device according to claim 2 or 3, characterized in that, It also includes a pressure gauge (7) which is mounted on the connecting pipe (1).

5. The mud plunger pump cylinder connecting device according to claim 4, characterized in that, The pressure gauge (7) is installed in the middle of the upper end of the connecting pipe (1), the lower high-pressure ball valve (4) is installed in the middle of the lower end of the connecting pipe (1), the left high-pressure ball valve (2) is installed in the upper end of the connecting pipe (1) and is located between the pressure gauge (7) and the left straight pipe joint (5), and the right high-pressure ball valve (3) is installed in the upper end of the connecting pipe (1) and is located between the pressure gauge (7) and the right straight pipe joint (6).

Images