Plunger pump set for multiple media

Abstract

A plunger pump set for multiple media, the plunger pump set comprising a pump station base (1), wherein a driving device (2) and a multi-crankshaft plunger pump (4) driven by the driving device (2) are provided on the pump station base (1); and the multi-crankshaft plunger pump (4) comprises a body (41) provided on the pump station base (1), wherein a plurality of crankshafts (42) are arranged in the body (41), the crankshafts (42) are connected to an output shaft of the driving device (2), a plurality of pump heads (46) are provided on the body (41), and the corresponding pump heads (46) are driven by means of the crankshafts (42) to simultaneously pump a plurality of working fluids. On the basis of the multi-crankshaft plunger pump, a pump station for pumping different media is formed, such that multi-flow and multi-pressure outputs under large flow conditions of different media can be realized, thereby simplifying the configuration of and control over a fully-mechanized mining liquid supply system, and improving the transmission efficiency of a hydraulic system.

Description

A plunger pump assembly for multi-media applications Technical Field

[0001] This disclosure relates to the technical field of plunger pumps, and more particularly to a plunger pump assembly for multi-media applications. Background Technology

[0002] Traditional fully mechanized mining faces have different requirements for emulsion pumps, spray pumps and media, requiring multiple emulsion pumps and spray pumps to be connected in parallel to form a liquid supply system. However, this results in a large number of devices, complex systems, heavy weight, and high operating and maintenance costs.

[0003] Some existing plunger pumps use axial flow distribution, but this is limited to lubricating oil media. They are controlled by a combination of two-way cartridge valve groups and solenoid directional valves, but this cannot meet the pressure control requirements for pump boosting and unloading of emulsions. Others use axial plunger pump structures such as slippers and swashplates, which can achieve dual oil suction and dual oil discharge, but this is limited to oil media and cannot meet the ultra-high flow rate requirements of coal mines. In addition, some technologies use a series structure of radial and axial plunger pumps. Although this can achieve multiple flow rates and multiple pressure outputs, the radial plunger pump uses axial flow distribution and the axial plunger pump is suitable for oil media. Summary of the Invention

[0004] In view of this, the present disclosure aims to provide a plunger pump assembly for multi-media applications to solve the aforementioned technical problems in the prior art.

[0005] This disclosure provides a plunger pump assembly for multiple media, comprising a pump station base, a drive device and a multi-crankshaft plunger pump driven by the drive device on the pump station base, the multi-crankshaft plunger pump comprising a body disposed on the pump station base, a plurality of crankshafts disposed within the body, the crankshafts being connected to the output shaft of the drive device, and a plurality of pump heads disposed on the body, the crankshafts driving the corresponding pump heads to pump multiple working media.

[0006] In some embodiments, the multi-crankshaft plunger pump has a horizontally opposed structure, wherein the plurality of crankshafts are arranged parallel to each other and are aligned with the extension direction of the multi-crankshaft plunger pump.

[0007] In some embodiments, a coupling is provided between the drive unit and the multi-crankshaft piston pump.

[0008] In some embodiments, the crankshaft is connected to the pump head via a transmission device, and the pump head is provided with a working chamber. The movement of the crankshaft causes the volume of the working chamber to change periodically, thereby driving the pump head to perform liquid suction and discharge.

[0009] In some embodiments, the transmission device includes at least a connecting rod, a slider, and a piston. The crankshaft is connected to one side of the slider via the connecting rod, and the other side of the slider is connected to the piston. The piston is disposed within the working chamber.

[0010] In some embodiments, the plurality of pump heads includes at least a first pump head and a second pump head. The first pump head is connected to an emulsion pipeline and is provided with an unloading valve to pump the emulsion. The second pump head is connected to a spray water pipeline and is provided with an overflow valve to pump the spray water.

[0011] In some embodiments, the emulsion pipeline includes an emulsion inlet pipe, an emulsion outlet pipe, and an emulsion unloading pipe. The suction port of the first pump head is connected to the emulsion inlet pipe, the discharge port of the first pump head is connected to the unloading valve, the high-pressure port of the first pump head is connected to the emulsion outlet pipe, and the low-pressure port of the unloading valve is connected to the emulsion unloading pipe.

[0012] In some embodiments, the spray water pipeline includes at least a spray water inlet pipe, a spray water outlet pipe, and a spray water overflow pipe. The suction port of the second pump head is connected to the spray water inlet pipe, the discharge port of the second pump head is connected to the overflow valve, the high-pressure port of the overflow valve is connected to the spray water outlet pipe, and the low-pressure port of the overflow valve is connected to the spray water overflow pipe.

[0013] In some embodiments, a lubrication device is also included, which is connected to the multi-crankshaft plunger pump via a pipeline.

[0014] In some embodiments, the body serves as an oil tank and is used in conjunction with the lubrication device.

[0015] The embodiments disclosed herein are based on multi-crankshaft plunger pumps to form pumping stations capable of pumping different media, which can achieve multi-flow and multi-pressure outputs under large flow conditions of different media, simplify the configuration and control of the fully mechanized mining fluid supply system, and improve the transmission efficiency of the hydraulic system.

[0016] To make the above-mentioned objects, features and advantages of this disclosure more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings generally illustrate various embodiments by way of example rather than limitation and are used, together with the description and claims, to illustrate the disclosed embodiments. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method. The accompanying drawings, which are provided to further understand this disclosure and form part of this application, are used to explain the illustrative embodiments of this disclosure and do not constitute an undue limitation of this disclosure. In the drawings:

[0018] Figure 1 is a three-dimensional structural schematic diagram of a plunger pump assembly for multi-media provided in an embodiment of this disclosure;

[0019] Figure 2 is a top view of a multi-media plunger pump assembly provided in an embodiment of this disclosure;

[0020] Figure 3 is a side view of a multi-media plunger pump assembly provided in an embodiment of this disclosure;

[0021] Figure 4 is a schematic diagram of the structure of a multi-crankshaft plunger pump in a multi-media plunger pump assembly provided in an embodiment of this disclosure;

[0022] Figure 5 is a schematic diagram of the pipeline connection in a multi-media plunger pump assembly provided in an embodiment of this disclosure.

[0023] The above-mentioned figures include the following reference numerals: 1-base; 2-drive device; 3-coupling; 4-multi-crankshaft plunger pump; 41-machine body; 42-crankshaft; 43-connecting rod; 44-slider; 45-piston; 46-pump head; 5-lubrication device; 6-overflow valve; 7-unloading valve; 8-emulsion pipeline; 81-emulsion inlet pipe; 82-emulsion outlet pipe; 83-emulsion unloading pipe; 9-spray water pipeline; 91-spray water inlet pipe; 92-spray water outlet pipe; 93-spray water overflow pipe. Detailed Implementation

[0024] The specific embodiments of this disclosure will now be described in detail with reference to the accompanying drawings, but these are not intended to limit the scope of this disclosure.

[0025] It should be understood that various modifications can be made to the embodiments disclosed herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this disclosure will be apparent to those skilled in the art.

[0026] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present disclosure and, together with the general description of the disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.

[0027] These and other features of this disclosure will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0028] It should also be understood that although this disclosure has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this disclosure, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0029] The above and other aspects, features and advantages of this disclosure will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0030] Specific embodiments of the present disclosure are described thereafter with reference to the accompanying drawings; however, it should be understood that the disclosed embodiments are merely examples of the present disclosure and can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the present disclosure. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but merely to serve as the basis and representative basis for the claims to teach those skilled in the art to use the present disclosure in a variety of substantially any suitable detailed structures.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in still another embodiment,” all of which may refer to one or more of the same or different embodiments according to this disclosure.

[0033] This disclosure provides a plunger pump set for multi-media systems, which simplifies the structure and control of fully mechanized fluid supply systems, thereby enabling independent output of multiple media, multiple flow rates, and multiple pressures from a single pump station. As shown in Figures 1-5, the plunger pump set for multi-media systems in this embodiment is in the form of a pump station, including a pump station base 1. The pump station base 1 can be equipped with manifolds and other supporting devices to facilitate the transfer of working fluid. A drive device 2 and a multi-crankshaft plunger pump 4 driven by the drive device 2 are mounted on the pump station base 1. In this embodiment, the drive device 2 is, for example, located on one side of the pump station base 1, and the multi-crankshaft plunger pump 4 is, for example, located on the other side along the length of the pump station base 1. The drive device 1 can be an electric motor, or it can be a device with other driving methods, such as a hydraulic motor. The output shaft of the drive device 2 is connected to the multi-crankshaft plunger pump 4, thereby driving the multi-crankshaft plunger pump 4 through the drive device 2.

[0034] Furthermore, a coupling 3 is provided between the drive device 2 and the multi-crank piston pump 4. The output shaft of the drive device 2 is connected to the input shaft of the multi-crank piston pump 4 through the coupling 3. In this way, the drive device 2 outputs power and drives the operation of the multi-crank piston pump 4 through the coupling 3. The coupling 3 is provided so that the drive device 2 and the multi-crank piston pump 4 are arranged along the length direction of the pump station base 1.

[0035] Furthermore, the multi-crankshaft plunger pump 4 includes a body 41, which is mounted on the pump station base 1 and serves to support and position other components within the multi-crankshaft plunger pump 4. Specifically, the body 41 contains multiple crankshafts 42, which rotate under the drive of a drive device. For example, they can be connected to the input shaft of the multi-crankshaft plunger pump 4, thereby driving the rotation of the multiple crankshafts 42 through the input shaft.

[0036] In one embodiment, the input shaft can be connected to the two crankshafts 42 via a gear set to drive the two crankshafts 42 to rotate periodically. Of course, based on other transmission structures, the input shaft can also be connected to more crankshafts 42 to drive more crankshafts 42 to rotate.

[0037] Furthermore, the body 42 is provided with a plurality of pump heads 46, which are used to pump the working fluid. By driving the plurality of crankshafts 42 to drive the corresponding plurality of pump heads 46, it is possible to simultaneously pump multiple different types of high-pressure working fluids.

[0038] Furthermore, the multi-crankshaft plunger pump 4 adopts a horizontally opposed structure, with multiple crankshafts 42 arranged parallel to each other in a horizontal plane, and the extending direction of the crankshafts 42 is consistent with the extending direction of the multi-crankshaft plunger pump 4. The multiple crankshafts 42 can be disposed, for example, below the inner side of the body 41; the pump head 46 can be disposed, for example, above the body 41, particularly on the upper surface of the body 41.

[0039] Furthermore, the crankshaft 42 inside the body 41 is correspondingly arranged with the pump head 46. The movement of the crankshaft 42 realizes the opening and closing of the corresponding pump head 46, thereby realizing the pumping operation of various media based on the multi-crankshaft structure.

[0040] In this embodiment, two crankshafts 42 are arranged in parallel inside the machine head 41, and two pump heads 46 corresponding to the crankshafts 42 are arranged on the machine body 41. The two pump heads 46 are used to pump two working fluids, namely emulsion and spray water. The functions of the two pump heads 46 can be interchanged according to the actual situation, and they can also be used to pump other working fluids.

[0041] Furthermore, the plunger pump assembly also includes a lubrication device 5, which is connected to the multi-crankshaft plunger pump 4 via a pipeline. Here, the lubrication device 5 is used to provide lubricating oil to the multi-crankshaft plunger pump 4 to achieve circulating lubrication and cooling.

[0042] In another embodiment, the body 41 can also serve as a lubricating oil tank, thereby cooperating with the lubrication device 5. For example, the lubricating oil in the lubrication device 5 can be stored in the body 41 for recycling.

[0043] Furthermore, the crankshaft 42 is connected to the pump head 46 via a transmission device. The pump head 46 has a working chamber, and a piston 45 is installed inside the working chamber. The movement of the piston 45 causes the volume of the working chamber inside the pump head 46 to change periodically, thereby enabling the pump head 46 to perform liquid suction and discharge operations on the working fluid.

[0044] Specifically, the transmission device can adopt various structures and forms. In one embodiment, it includes at least a connecting rod 43 and a slider 44. The crankshaft 42 is connected to one side of the slider 44 via the connecting rod 43, and the other side of the slider 44 is connected to the piston 45. Since the piston 45 is located in the working chamber of the pump head 46, the rotation of the crankshaft 42 drives the movement of the connecting rod 43, and the connecting rod 43 drives the slider 44 to achieve linear motion, thereby driving the piston 45 to move along the axial direction of the working chamber.

[0045] In this way, when the crankshaft 42 rotates, the rotational motion of the crankshaft 42 can be converted into the reciprocating linear motion of the plunger 45 through the connecting rod 43 and the slider 44. The reciprocating linear motion of the plunger 45 causes the volume of the working chamber in the pump head 46 to change periodically. Thus, the pump head 46 can periodically open and close to draw in and discharge liquid, ultimately realizing the operation of drawing in or discharging high-pressure working fluid.

[0046] The number of pump heads 46 mentioned here indicates different types of working fluids being pumped. In one embodiment, taking the pumping of two different types of working fluids as an example, the pump head 46 includes a first pump head and a second pump head. The first pump head is connected to the emulsion pipeline 8, and an unloading valve 7 is provided on the first pump head to pump high-pressure emulsion. The emulsion pipeline 8 includes an emulsion inlet pipe 81, an emulsion outlet pipe 82, and an emulsion unloading pipe 83.

[0047] Specifically, the suction port of the first pump head is connected to the emulsion inlet pipe 81, the discharge port of the first pump head is connected to the unloading valve 7, the high pressure port of the first pump head is connected to the emulsion outlet pipe 82, and the low pressure port of the unloading valve 7 is connected to the emulsion unloading pipe 83.

[0048] Based on the above structure, when the load pressure is lower than the set value, the low-pressure port of the unloading valve 7 is closed, and the high-pressure emulsion is supplied to the load through the one-way valve in the unloading valve 7 and the emulsion outlet pipe 82; when the load pressure reaches the set value, the low-pressure port of the unloading valve 7 is opened, and the high-pressure emulsion flows back to the liquid tank through the emulsion unloading pipe 83 to reduce the power consumption of the first pump head.

[0049] On the other hand, the second pump head is connected to the spray water pipeline 9, and an overflow valve 6 is installed on the second pump head to pump high-pressure spray water. The spray water pipeline here includes at least a spray water inlet pipe 91, a spray water outlet pipe 92, and a spray water overflow pipe 93. The overflow valve 6 here can be electrically controlled, for example, an electrically controlled overflow valve, to achieve independent supply control of the emulsion and the spray water.

[0050] Specifically, the suction port of the second pump head is connected to the spray water inlet pipe 91, the discharge port of the second pump head is connected to the overflow valve 6, the high pressure port of the overflow valve 6 is connected to the spray water outlet pipe 92, and the low pressure port of the overflow valve 6 is connected to the spray water overflow pipe 93.

[0051] Based on the above structure, when the load pressure is lower than the set value, the low-pressure port of the overflow valve 6 is closed, and high-pressure spray water is supplied to the load through the spray water outlet pipe 92; when the load pressure exceeds the set value, the low-pressure port of the overflow valve 6 is opened appropriately, and part of the spray water flows back to the water tank through the spray water overflow pipe 93, so as to keep the pressure of the output spray water from exceeding the set value.

[0052] The plunger pump assembly described in the above embodiments of this disclosure has the dual function of pumping emulsion and spray water. Specifically, it can drive two crankshafts 42 simultaneously through a single input shaft, thereby driving the two hydraulic ends of the unloading valve 7 and the overflow valve 6 respectively. The functions of emulsion pump and spray pump can be realized on a single plunger pump. For example, it can achieve the output of emulsion medium and spray water medium with ultra-high flow rates of 1000L / min and above, and can realize the functions of both traditional spray pump station and emulsion pump station.

[0053] The above are merely examples of emulsions and spray water. This disclosure can not only meet the pressure control requirements for pump pressurization and unloading of emulsions and spray water, but also meet the pumping requirements of other different types of media, and can realize the supply requirements of ultra-large flow rates in coal mines.

[0054] The embodiments disclosed herein are based on multi-crankshaft plunger pumps to form pumping stations capable of pumping different media, which can achieve multi-flow and multi-pressure outputs under large flow conditions of different media, simplify the configuration and control of the fully mechanized mining fluid supply system, and improve the transmission efficiency of the hydraulic system.

[0055] In the above embodiments of this disclosure, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0056] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0057] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this disclosure.

[0058] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0059] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A multi-medium plunger pump set, characterized in that, The system includes a pump station base, on which a drive device and a multi-crankshaft plunger pump driven by the drive device are mounted. The multi-crankshaft plunger pump includes a body mounted on the pump station base, with multiple crankshafts mounted inside the body. The crankshafts are connected to the output shaft of the drive device, and multiple pump heads are mounted on the body. The crankshafts drive the corresponding pump heads to pump various working media.

2. The multi-media piston pump set of claim 1, wherein, The multi-crankshaft plunger pump has a horizontally opposed structure, with multiple crankshafts arranged parallel to each other and aligned with the extension direction of the multi-crankshaft plunger pump.

3. The multi-media piston pump set of claim 1, wherein, A coupling is provided between the drive unit and the multi-crankshaft plunger pump.

4. The multi-media piston pump set of claim 1, wherein, The crankshaft is connected to the pump head via a transmission device. The pump head has a working chamber. The movement of the crankshaft causes the volume of the working chamber to change periodically, thereby driving the pump head to perform liquid suction and discharge.

5. The multi-media piston pump set of claim 4, wherein, The transmission device includes at least a connecting rod, a slider, and a piston. The crankshaft is connected to one side of the slider via the connecting rod, and the other side of the slider is connected to the piston. The piston is disposed within the working chamber.

6. The multi-media piston pump set of claim 1, wherein, The plurality of pump heads includes at least a first pump head and a second pump head. The first pump head is connected to an emulsion pipeline and is equipped with an unloading valve to pump the emulsion. The second pump head is connected to a spray water pipeline and is equipped with an overflow valve to pump the spray water.

7. The multi-media piston pump set of claim 6, wherein, The emulsion pipeline includes an emulsion inlet pipe, an emulsion outlet pipe, and an emulsion unloading pipe. The suction port of the first pump head is connected to the emulsion inlet pipe, the discharge port of the first pump head is connected to the unloading valve, the high-pressure port of the first pump head is connected to the emulsion outlet pipe, and the low-pressure port of the unloading valve is connected to the emulsion unloading pipe.

8. The plunger pump assembly for multi-media according to claim 6, characterized in that, The spray water pipeline includes at least a spray water inlet pipe, a spray water outlet pipe, and a spray water overflow pipe. The suction port of the second pump head is connected to the spray water inlet pipe, the discharge port of the second pump head is connected to the overflow valve, the high-pressure port of the overflow valve is connected to the spray water outlet pipe, and the low-pressure port of the overflow valve is connected to the spray water overflow pipe.

9. The plunger pump assembly for multi-media according to claim 1, characterized in that, It also includes a lubrication device, which is connected to the multi-crankshaft plunger pump via a pipeline.

10. The plunger pump assembly for multi-media according to claim 9, characterized in that, The machine body serves as an oil tank and is used in conjunction with the lubrication device.

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