Pressure detection equipment of plunger pump

Abstract

The utility model discloses pressure detection equipment of a plunger pump, which relates to the technical field of pressure detection equipment, and comprises a working table and a jig arranged on the working table and used for installing and fixing the plunger pump, one side of the plunger pump is provided with a driving mechanism for providing power for the plunger pump, and the working table is provided with an oil tank for providing media for the plunger pump. A driving motor is arranged on one side of the plunger pump, a pipeline connecting mechanism used for connecting the plunger pump with an oil tank is arranged on the other side of the plunger pump, and a pressure detector is arranged on the pipeline connecting mechanism. According to the plunger pump pressure detection device, the pressure generated in the working process of a plunger pump can be monitored in real time, an operator can conveniently know the pressure change condition of the plunger pump, the situation that a pressure detector is damaged due to too large instantaneous pulsating pressure is avoided, and by installing the lifting frame, the liquid flowing smoothness is improved, and the detection efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of pressure detection equipment, and particularly to a pressure detection equipment for a plunger pump. Background Art

[0002] The plunger pump is an important device in the hydraulic system, which has the advantages of high rated pressure, compact structure, high efficiency and convenient flow regulation, and is widely used in occasions where high pressure, large flow and flow regulation are required. The outlet pressure of the plunger pump is an important index for the normal operation of the plunger pump.

[0003] The plunger pump is a kind of pressure pump that uses rotational motion to push a group of plungers in and out, thereby generating high pressure. When the plunger moves towards the inlet direction, the spherical valve at the inlet opens, allowing the medium to enter the pump body from the inlet side; when the plunger moves towards the outlet direction, the medium is forced to flow through the spherical valve and close, thereby generating high pressure.

[0004] Now, generally, the staff will install the pressure measuring device at the pump outlet of the plunger pump to measure the pressure inside the plunger pump. However, sometimes the range of the pressure gauge (transmitter) is lower than the instantaneous pulsating pressure of the pump, which is likely to damage the pressure gauge (transmitter) and affect the staff's confirmation of whether its output pressure is normal. Summary of the Utility Model

[0005] In view of the above problems, a pressure detection equipment for a plunger pump is provided, which solves the problem that the measuring device is damaged due to excessive instantaneous pulsating pressure of the plunger pump by controlling the start of the plunger pump.

[0006] To solve the problems of the prior art, the utility model provides a pressure detection equipment for a plunger pump, which is used to detect the pressure generated by the plunger pump. The equipment includes a workbench and a jig arranged on the workbench for installing and fixing the plunger pump. A driving mechanism for providing power to the plunger pump is arranged on one side of the plunger pump. A fuel tank for providing medium to the plunger pump is arranged on the workbench. A pipeline connection mechanism for connecting the plunger pump with the fuel tank is arranged on the other side of the plunger pump, and a pressure detector is arranged on the pipeline connection mechanism.

[0007] Preferably, the pipeline connection mechanism includes a first oil pipe for connecting the output end of the fuel tank with the input end of the plunger pump, and a second oil pipe for connecting the input end of the fuel tank with the output end of the plunger pump.

[0008] Preferably, a pressure detector is arranged in the middle of the second oil pipe.

[0009] Preferably, the driving mechanism includes a driving motor, the driving motor is installed on the workbench, the plunger pump has a rotating shaft connected with the driving motor, and the output end of the driving motor is connected with the rotating shaft of the plunger pump through a coupling.

[0010] Preferably, a lifting frame is provided at the lower end of the fuel tank.

[0011] Preferably, the plunger pump is fixed to the jig by bolts.

[0012] The beneficial effects of the present utility model compared with the prior art are as follows:

[0013] 1. By starting the drive motor of the present utility model, the plunger pump is started, and the liquid medium in the fuel tank is pumped into the plunger pump through the first oil pipe, and then pressurized by the operating plunger pump and output through the second oil pipe and returned to the fuel tank to form a cycle. During the return process of the second oil pipe, a pressure detector is provided in the middle, which can be able to monitor the pressure generated by the plunger pump during the working process in real time, and record the monitored pressure data, facilitating the operator to intuitively understand the pressure change situation of the plunger pump under different working conditions, so that the pressure detector will not be damaged due to excessive instantaneous pulsating pressure.

[0014] 2. By installing a lifting frame in the present utility model, the position of the fuel tank is raised, which helps to reduce the flow resistance of the liquid medium caused by gravity, enables the liquid medium to circulate more smoothly between the fuel tank and the plunger pump, which helps to improve the operation efficiency of the equipment, and reduces the failures or downtime caused by poor medium flow, and improves the detection efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of a pressure detection device for a plunger pump.

[0016] Figure 2 is a three-dimensional structural schematic diagram of the plunger pump of a pressure detection device for a plunger pump.

[0017] Figure 3 is a three-dimensional structural schematic diagram of the interior of the plunger pump of a pressure detection device for a plunger pump.

[0018] Figure 4 is a three-dimensional structural schematic diagram of the mounting seat of a pressure detection device for a plunger pump.

[0019] Figure 5 is a three-dimensional structural schematic diagram of the drive motor of a pressure detection device for a plunger pump.

[0020] Figure 6 is a three-dimensional structural schematic diagram of the fuel tank of a pressure detection device for a plunger pump.

[0021] The reference numerals in the figure are: 100, workbench; 200, mounting base; 201, screw hole; 202, bolt; 203, nut; 300, plunger pump; 301, pump body; 302, movable cavity; 303, rotating shaft; 304, plunger; 305, swash plate; 306, rotating disk; 307, piston; 308, outlet pipe; 309, inlet pipe; 310, mounting plate; 311, mounting hole; 312, bearing; 400, drive motor; 401, drive shaft; 402, coupling; 403, rotary half coupling; 404, connecting disk; 500, lifting frame; 501, fuel tank; 502, oil inlet; 503, oil outlet; 600, connector; 601, first oil pipe; 602, second oil pipe; 603, pressure detector. Detailed implementation mode

[0022] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and the detailed implementation mode.

[0023] See Figures 1 to 6 As shown, it is used to detect the pressure generated by the plunger pump 300, including a workbench 100 and a jig arranged on the workbench 100 for installing and fixing the plunger pump 300. A driving mechanism for providing power to the plunger pump 300 is arranged on one side of the plunger pump 300. A fuel tank 501 for providing medium to the plunger pump 300 is arranged on the workbench 100. A pipeline connection mechanism for connecting the plunger pump 300 to the fuel tank 501 is arranged on the other side of the plunger pump 300. A pressure detector 603 is arranged on the pipeline connection mechanism.

[0024] See Figure 2 、 3As shown, the piston pump 300 includes a pump body 301. An active chamber 302 is provided inside the pump body 301. A bearing 312 is provided inside the active chamber 302. A rotating shaft 303 is rotatably provided inside the active chamber 302, and the rotating shaft 303 is installed on the pump body 301 through the bearing 312. The end of the rotating shaft 303 is rotatably connected to the inner bottom of the active chamber 302. A piston 304 is sleeved outside the rotating shaft 303. Multiple pistons 307 are slidably provided inside the piston 304. An inclined disk 305 is provided inside the active chamber 302. A rotating disk 306 is rotatably provided on the inclined disk 305. The end of the piston 307 is connected to the surface of the rotating disk 306 through a slipper (or similar mechanism). An outlet pipe 308 and an inlet pipe 309 that are connected to the active chamber 302 are provided at the end of the pump body 301. During use, the rotating shaft 303 is rotated through a driving device, thereby driving the piston 304 to rotate. Since the end of the piston 307 is connected to the rotating disk 306, the piston 307 makes a reciprocating motion inside the piston 304. When the piston 307 moves into the active chamber 302, the volume of the inner cavity of the piston 304 increases, forming a low pressure, and the liquid medium is sucked in from the inlet pipe 309. When the piston 307 moves out of the active chamber 302, the volume of the inner cavity of the piston 304 decreases, generating a high pressure, and the liquid medium is discharged from the outlet pipe 308.

[0025] See Figure 1 、 6 As shown, the pipeline connection mechanism includes a first oil pipe 601 for connecting the output end of the fuel tank 501 to the input end of the piston pump 300, and a second oil pipe 602 for connecting the input end of the fuel tank 501 to the output end of the piston pump 300. A pressure detector 603 is provided in the middle of the second oil pipe 602. An oil inlet 502 is provided at the input end of the fuel tank 501, and an oil outlet 503 is provided at the output end of the fuel tank 501. Connection heads 600 are installed at the ends of the outlet pipe 308 and the inlet pipe 309 on the pump body 301. During use, the piston pump 300 is started, and the liquid medium in the fuel tank 501 is pumped into the piston pump 300 through the first oil pipe 601, and then is pressurized by the operating piston pump 300 and output and refluxed to the fuel tank 501 through the second oil pipe 602, forming a cycle. During the reflux process of the second oil pipe 602, the pressure detector 603 provided in the middle thereof can be used to monitor the pressure generated by the piston pump 300 during the working process in real time, and record the monitored pressure data, which is convenient for the operator to intuitively understand the pressure change situation of the piston pump 300 under different working conditions. Through the analysis of the pressure data, the pressure detector 603 can help the operator timely discover possible faults or abnormal conditions of the piston pump 300. The recorded pressure data can also be used to evaluate and optimize the performance of the piston pump 300.

[0026] See Figure 1 、 2As shown in FIGS. 5, the drive mechanism includes a drive motor 400 mounted on the workbench 100. The plunger pump 300 has a rotating shaft 303 connected to the drive motor 400. The output end of the drive motor 400 is connected to the rotating shaft 303 of the plunger pump 300 through a coupling 402. The output end of the drive motor 400 is provided with a drive shaft 401. The coupling 402 includes a rotary half-coupling 403 and a connecting disk 404. The connecting disk 404 is arranged on the rotary half-coupling 403. In use, the corresponding rotary half-couplings 403 are respectively installed at the ends of the drive shaft 401 and the rotating shaft 303, and then the two connecting disks 404 are connected together with bolts. At this time, the drive motor 400 can be started, so that the drive shaft 401 transmits the rotational torque to the rotating shaft 303 and ensures synchronous rotation between the two, thereby starting the plunger pump 300.

[0027] See Figure 6 As shown, a lifting frame 500 is provided at the lower end of the fuel tank 501. In use, by providing the lifting frame 500, it is easier for the operator to access the fuel tank 501 and its related components for necessary inspections and operations. Moreover, lifting the fuel tank 501 helps to reduce the flow resistance of the liquid medium caused by gravity, enabling the liquid medium to circulate more smoothly between the fuel tank 501 and the plunger pump 300. This helps to improve the operating efficiency of the equipment and reduce failures or downtime caused by poor medium flow.

[0028] See Figure 1 、 4 As shown, the plunger pump 300 is fixed to the fixture by bolts 202. The fixture includes a mounting base 200. The mounting base 200 is provided with screw holes 201. The plunger pump 300 is provided with a mounting disk 310. The mounting disk 310 is provided with mounting holes 311. In use, the plunger pump 300 is placed on the mounting base 200, and then the bolts 202 are passed through the screw holes 201 and the mounting holes 311 on the plunger pump 300 and cooperate with nuts 203 to fix the plunger pump 300 to the mounting base 200 for convenient use.

[0029] The above embodiment discloses a pressure detection device for a plunger pump. When this device is used, the plunger pump 300 is placed on the mounting base 200, and then bolts 202 are used to pass through the screw holes 201 and the mounting holes 311 on the plunger pump 300, and cooperate with nuts 203 to fix the plunger pump 300 on the mounting base 200. Then, corresponding rotary half couplings 403 are installed at the ends of the drive shaft 401 and the rotating shaft 303 respectively, and the two connection disks 404 are connected together using bolts. At this time, the drive motor 400 can be started, so that the drive shaft 401 transmits the rotational torque to the rotating shaft 303 and ensures synchronous rotation between the two, enabling the plunger pump 300 to start. The liquid medium in the fuel tank 501 is pumped into the plunger pump 300 through the first oil pipe 601, and then is pressurized by the operating plunger pump 300 and output and returned to the fuel tank 501 through the second oil pipe 602, forming a cycle. During the return process of the second oil pipe 602, the pressure detector 603 provided in the middle can monitor the pressure generated by the plunger pump 300 during operation in real time and record the monitored pressure data, facilitating the operator to intuitively understand the pressure change situation of the plunger pump 300 under different working conditions. Through the analysis of the pressure data, the pressure detector 603 can help the operator timely discover possible faults or abnormal conditions of the plunger pump 300. The recorded pressure data can also be used to evaluate and optimize the performance of the plunger pump 300.

[0030] The above embodiments only represent one or several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. A plunger pump pressure detection device, used to detect the pressure generated by the plunger pump (300), characterized in that: The invention comprises a workbench (100) and a fixture arranged on the workbench (100) for installing and fixing a plunger pump (300); a driving mechanism for providing power to the plunger pump (300) is arranged on one side of the plunger pump (300); an oil tank (501) for providing medium to the plunger pump (300) is arranged on the workbench (100); a pipeline connection mechanism for connecting the plunger pump (300) to the oil tank (501) is arranged on the other side of the plunger pump (300); a pressure detector (603) is arranged on the pipeline connection mechanism; and a pressure detector (603) is arranged in the middle of the second oil pipe (602).

2. A plunger pump pressure detection device according to claim 1, characterized in that: The pipeline connection mechanism comprises a first oil pipe (601) for connecting the output end of the oil tank (501) with the input end of the plunger pump (300), and a second oil pipe (602) for connecting the input end of the oil tank (501) with the output end of the plunger pump (300).

3. A plunger pump pressure detection device according to claim 1, characterized in that: The driving mechanism comprises a driving motor (400), the driving motor (400) is mounted on a workbench (100), the plunger pump (300) has a rotating shaft (303) connected to the driving motor (400), and the output end of the driving motor (400) is connected to the rotating shaft (303) of the plunger pump (300) via a coupling (402).

4. The pressure detection device of a plunger pump according to claim 1, characterized in that: A lifting frame (500) is provided at the lower end of the oil tank (501).

5. The pressure detection device of a plunger pump according to claim 1, characterized in that: The plunger pump (300) is fixed on the fixture by bolts (202).

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