Water-cooling high-pressure plunger pump

Abstract

The invention discloses a water-cooling high-pressure plunger pump which comprises a crank case, a water-cooling high-pressure plunger pump body and a water-cooling high-pressure plunger pump body. A rotatable crank shaft is arranged in the crank case. The pump body is provided with a suction inlet and a discharge outlet, one end of the plunger penetrates through the crankcase and is in power connection with the crankshaft, and the other end of the plunger extends into the pump body; the plunger is in sealing fit with the pump body and is movably installed on the pump body so as to be used for adjusting the volume of the pump body, the crankcase is provided with cooling fins and a water cooling device, the cooling fins are arranged on the outer surface of the crankcase, the water cooling device comprises a controller and a water cooling pipeline, the controller is used for controlling water inlet and water outlet of the water cooling pipeline, and the water cooling pipeline is used for exchanging heat with the crankcase; wherein the radiating fins are provided with temperature detection devices, and the temperature detection devices are in communication connection with the controller. According to the water-cooling high-pressure plunger pump, first-stage heat dissipation can be conducted on the crankcase through the heat dissipation fins, second-stage heat exchange with the crankcase is achieved through water inflow of the water-cooling pipeline, and then the heat dissipation capacity of the crankcase is improved.

Description

Technical Field

[0001] This application relates to the technical field of plunger pumps, and particularly to a water-cooled high-pressure plunger pump. Background Art

[0002] In related technologies, the plunger of a plunger pump reciprocates to complete the water pumping movement. However, the movement of the plunger requires a separate drive structure, and the existing drive structure has poor heat dissipation, resulting in easy overheating and damage of the drive structure, and thus it is difficult to achieve the long-term and effective operation of the plunger pump. Summary of the Invention

[0003] This application aims to solve at least one of the technical problems existing in the prior art. For this purpose, this application provides a water-cooled high-pressure plunger pump, which can perform primary heat dissipation on the crankcase by using heat dissipation fins, and when the heat dissipation fins are difficult to meet the heat dissipation requirements of the crankcase, the controller can be used to control the water inlet of the water-cooled pipeline to achieve secondary heat exchange with the crankcase. In this way, the heat dissipation capacity of the crankcase can be improved.

[0004] The water-cooled high-pressure plunger pump according to an embodiment of this application includes: a crankcase, in which a rotatable crankshaft is provided; a pump body and a plunger, the pump body is provided with a suction port and a discharge port, one end of the plunger penetrates through the crankcase and is power-connected to the crankshaft, and the other end of the plunger extends into the pump body; the plunger is sealingly fitted with the pump body and is movably installed in the pump body for adjusting the volume of the pump body, the crankcase is provided with heat dissipation fins and a water-cooling device, the heat dissipation fins are arranged on the outer surface of the crankcase, the water-cooling device includes a controller and a water-cooling pipeline, the controller is used to control the water inlet and outlet of the water-cooling pipeline, and the water-cooling pipeline is used for heat exchange with the crankcase; wherein, a temperature detection device is provided on the heat dissipation fins, and the temperature detection device is communicatively connected to the controller.

[0005] The water-cooled high-pressure plunger pump according to an embodiment of this application is provided with a crankcase and a crankshaft to facilitate controlling the movement of the plunger by using the rotation of the crankshaft, and heat dissipation fins are provided to facilitate performing primary heat dissipation on the crankcase by using the heat dissipation fins. In particular, a temperature detection device communicatively connected to the controller of the water-cooling device is provided on the heat dissipation fins to facilitate controlling the water inlet of the water-cooling pipeline by using the controller to achieve secondary heat exchange with the crankcase when the heat dissipation fins are difficult to meet the heat dissipation requirements of the crankcase. In this way, the heat dissipation capacity of the crankcase can be improved, and the water-cooling device is only started when the heat dissipation fins are difficult to meet the heat dissipation requirements of the crankcase to reduce the energy consumption of the water-cooling device.

[0006] In the water-cooled high-pressure plunger pump according to some embodiments of this application, the water-cooling device is arranged on the outer surface of the crankcase and at the connection of two adjacent side walls.

[0007] The water-cooled high-pressure plunger pump according to some embodiments of the present application, wherein the temperature detection device is located at one end of the heat dissipation fins away from the crankcase.

[0008] The water-cooled high-pressure plunger pump according to some embodiments of the present application, wherein a plurality of heat dissipation fins are provided, and the plurality of heat dissipation fins are spaced apart and distributed in a direction from the middle area to the two side areas of the side wall of the crankcase.

[0009] The water-cooled high-pressure plunger pump according to some embodiments of the present application, wherein the temperature detection device is located on one of the heat dissipation fins close to the middle area of the side wall of the crankcase among the plurality of heat dissipation fins.

[0010] The water-cooled high-pressure plunger pump according to some embodiments of the present application, wherein the water-cooling pipeline is embedded in the side wall of the crankcase.

[0011] The water-cooled high-pressure plunger pump according to some embodiments of the present application further includes: a packing, which is arranged at the connection between the plunger and the pump body.

[0012] The water-cooled high-pressure plunger pump according to some embodiments of the present application further includes: an elastic member, which is sleeved on the packing, and the elastic member is elastically connected between the pump body and the other end of the plunger; wherein, in the extending direction of the plunger, the elastic member applies an elastic pre-tightening force to the other end of the plunger towards the end away from the end where the plunger is connected to the crankshaft.

[0013] The water-cooled high-pressure plunger pump according to some embodiments of the present application further includes: a connecting rod assembly, which is power-connected between the crankshaft and the plunger.

[0014] For the water-cooled high-pressure plunger pump according to some embodiments of the present application, the axial direction of the crankshaft is the first direction, the movement direction of the plunger is the second direction, the first direction and the second direction intersect, and the connecting rod assembly is used to drive the plunger to move along the second direction when the crankshaft rotates.

[0015] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0017] Figure 1 Schematic diagram of a water-cooled high-pressure plunger pump according to some embodiments of the present application;

[0018] Figure 2Partial exploded view of a water-cooled high-pressure plunger pump according to some embodiments of the present application;

[0019] Figure 3 Schematic structural diagram of a water-cooled high-pressure plunger pump removing the pump body according to some embodiments of the present application;

[0020] Figure 4 Side view of a water-cooled high-pressure plunger pump according to some embodiments of the present application;

[0021] Figure 5 is Figure 4 Half-sectional view at A-A in;

[0022] Figure 6 is Figure 4 Half-sectional view at B-B in.

[0023] Reference numerals:

[0024] Water-cooled high-pressure plunger pump 100; First direction X; Second direction Y;

[0025] Crankcase 10; Crankshaft cavity 101, Cooling addition cavity 102; Crankshaft 11;

[0026] Pump body 20; Plunger 21; Suction port 22;

[0027] Radiating fins 30; Water-cooling device 40; Temperature detection device 50;

[0028] Packing 60; Elastic member 70; Connecting rod assembly 80, Metal one-way valve 90. Detailed description of the embodiments

[0029] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0030] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the applicability of other processes and / or the use of other materials.

[0031] In the related art, the plunger of the plunger pump reciprocates to complete the water pumping movement. However, a separate driving structure needs to be set for the movement of the plunger. However, the heat dissipation of the existing driving structure is poor, resulting in easy overheating and damage of the driving structure, and thus it is difficult to achieve the long-term and effective operation of the plunger pump.

[0032] In view of this, the present application proposes a water-cooled high-pressure plunger pump 100. The following refers to Figures 1 - 6 Describe the water-cooled high-pressure plunger pump 100 according to the embodiment of the present application. The water-cooled high-pressure plunger pump 100 is provided with a crankcase 10 and a crankshaft 11 as the driving structure of the plunger 21, and can use the heat dissipation fins 30 to perform primary heat dissipation on the crankcase 10, and use the water-cooled pipeline to introduce water to achieve secondary heat exchange with the crankcase 10, thereby improving the heat dissipation capacity of the crankcase 10.

[0033] For example Figures 1 - 5 As shown, a rotatable crankshaft 11 is provided in the crankcase 10. The pump body 20 is provided with a suction port 22 and a discharge port (not shown in the figure). One end of the plunger 21 (such as the plunger 21 shown in Figures 2 - 4 ) passes through the crankcase 10 and is power-connected to the crankshaft 11. The other end of the plunger 21 extends to the pump body 20. The plunger 21 is sealingly fitted with the pump body 20 to prevent the liquid in the pump body 20 from leaking along the connection between the plunger 21 and the pump body 20. Among them, the plunger 21 and the pump body 20 can be sealingly fitted through a sealing rubber or packing 60 or other sealing members, which is not limited herein.

[0034] The plunger 21 is movably installed in the pump body 20 to adjust the volume of the pump body 20. Among them, when the crankshaft 11 rotates, it is adapted to drive the plunger 21 to reciprocate linearly, thereby adjusting the volume of the pump body 20, and further realizing the suction or discharge of the main body.

[0035] In some implementations, the crankshaft 11 and the plunger 21 can be threadedly connected. For example, one of the crankshaft 11 and the plunger 21 can be sleeved on the other, and the crankshaft 11 and the plunger 21 are threadedly connected. For example, in the axial direction of the crankshaft 11, the crankshaft 11 is in limit fit with the crankcase 10. In this way, when the crankshaft 11 rotates, the plunger 21 can move linearly along the axial direction of the crankshaft 11, so as to meet the movement of the plunger 21. Or the crankshaft 11 and the plunger 21 can be power-connected through a gear-rack transmission mechanism. For example, a gear is sleeved on the crankshaft 11, and a rack extending along the movement direction of the plunger 21 is provided on the plunger 21, and the gear meshes with the rack. In this way, when the crankshaft 11 drives the gear to rotate, the rack can drive the plunger 21 to achieve linear movement; or the crankshaft 11 and the plunger 21 can be power-connected through a roller screw transmission mechanism; or the crankshaft 11 and the plunger 21 can be power-connected through a cam mechanism; or the crankshaft 11 and the plunger 21 can be power-connected through a crank-rocker mechanism; or the crankshaft 11 and the plunger 21 can be power-connected through a slider mechanism; or the crankshaft 11 and the plunger 21 can be power-connected through an inclined plane transmission mechanism.

[0036] Of course, the crankshaft 11 and the plunger 21 can also be power-connected through other power connection mechanisms to convert rotation into linear power connection, which is not limited herein.

[0037] Furthermore, as Figures 1 - 3 and Figure 5 shown, the crankcase 10 is provided with heat dissipation fins 30 and a water cooling device 40. The heat dissipation fins 30 are arranged on the outer surface of the crankcase 10. The water cooling device 40 includes a controller and a water cooling pipeline. The controller is used to control the inlet and outlet of the water cooling pipeline, and the water cooling pipeline is used to exchange heat with the crankcase 10; wherein, a temperature detection device 50 is provided on the heat dissipation fins 30, and the temperature detection device 50 is communicatively connected to the controller.

[0038] It can be understood that the temperature detection device 50 is used to obtain the current temperature information of the heat dissipation fins 30 and transmit the current temperature information to the controller. The controller judges the magnitude relationship between the current temperature information and the preset temperature. When the current temperature is greater than the preset temperature, the controller controls the water cooling pipeline to let water in to realize heat exchange with the crankcase 10. When the current temperature is less than the preset temperature, the controller controls the water cooling pipeline to drain water to end the heat exchange with the crankcase 10.

[0039] Among them, the preset temperature is a temperature threshold set manually. For example, the preset temperature can be 50 degrees. That is, when the temperature of the heat dissipation fins 30 is 49 degrees, 49 degrees is less than 50 degrees. At this time, it means that the heat dissipation capacity of the heat dissipation fins 30 can still meet the current heat dissipation requirements of the crankcase 10, that is, the controller will not control the water cooling pipeline to let water in to reduce the energy consumption of the water cooling device 40.

[0040] However, when the temperature of the heat dissipation fin 30 is 51 degrees, and 51 degrees is greater than 50 degrees, it indicates that the current heat dissipation capacity of the heat dissipation fin 30 is difficult to meet the current heat dissipation requirements of the crankcase 10. At this time, the controller controls the water pump of the water cooling pipeline to realize the water inlet of the water cooling pipeline and then realize the heat exchange with the crankcase 10. In this way, while the heat dissipation fin 30 maintains heat dissipation, the controller is used to control the water inlet of the water cooling pipeline to realize the secondary heat exchange with the crankcase 10. In this way, the heat dissipation capacity and heat dissipation efficiency of the crankcase 10 can be improved, and the water cooling device 40 will only start when the heat dissipation fin 30 is difficult to meet the heat dissipation requirements of the crankcase 10, so as to reduce the energy consumption of the water cooling device 40.

[0041] Of course, the above preset temperature is only used as an example for illustration and does not represent a limitation thereto.

[0042] According to the water-cooled high-pressure plunger pump 100 of the embodiment of the present application, by arranging the crankcase 10 and the crankshaft 11, it is convenient to control the movement of the plunger 21 by using the rotation of the crankshaft 11, and the heat dissipation fin 30 is arranged to facilitate the primary heat dissipation of the crankcase 10 by using the heat dissipation fin 30. In particular, a temperature detection device 50 communicatively connected to the controller of the water cooling device 40 is arranged on the heat dissipation fin 30, so that when the heat dissipation fin 30 is difficult to meet the heat dissipation requirements of the crankcase 10, the controller is used to control the water inlet of the water cooling pipeline to realize the secondary heat exchange with the crankcase 10. In this way, the heat dissipation capacity and heat dissipation efficiency of the crankcase 10 can be improved, and the water cooling device 40 will only start when the heat dissipation fin 30 is difficult to meet the heat dissipation requirements of the crankcase 10, so as to reduce the energy consumption of the water cooling device 40.

[0043] In some embodiments, the preset temperature can be between 95 degrees and 105 degrees. For example, the preset temperature can be 95 degrees, 98 degrees, 100 degrees or 105 degrees, etc. That is, when the value range of the preset temperature is within the above value range, it can ensure that the temperature of the crankcase 10 will not be too high, which is beneficial to extending the service life of the crankcase 10, and the water cooling device 20 will not be turned on under relatively low temperatures, which is beneficial to reducing the energy consumption of the water cooling device 20.

[0044] In some embodiments, as Figure 1 shown, the water cooling device 40 is arranged on the outer surface of the crankcase 10 and at the connection of two adjacent side walls.

[0045] It can be understood that when heat is generated by the rotation of the crankshaft 11, the heat transfer will cause heat to usually accumulate at the connection of two adjacent side walls of the crankcase 10.

[0046] Therefore, in the present application, the water cooling device 40 is arranged on the outer surface of the crankcase 10 and at the connection of two adjacent side walls, so as to facilitate the targeted heat dissipation of the heat accumulation area on the crankcase 10 by using the water cooling pipeline. In this way, the heat dissipation capacity of the crankcase 10 can be improved.

[0047] In some embodiments, the temperature detection device 50 is located at one end of the heat dissipation fins 30 away from the crankcase 10.

[0048] It can be understood that when the crankshaft 11 rotates to generate heat, the heat of the crankcase 10 is dissipated to the air through the heat dissipation fins 30, and the heat moves from the crankcase 10 to the heat dissipation fins 30, indicating that the end of the heat dissipation fins 30 close to the crankcase 10 is closer to the heat source (the crankcase 10 described above). That is, the heat at the end of the heat dissipation fins 30 away from the crankcase 10 is usually less than the heat at the end of the heat dissipation fins 30 close to the crankcase 10. In other words, the temperature at the end of the heat dissipation fins 30 away from the crankcase 10 is usually less than the temperature at the end of the heat dissipation fins 30 close to the crankcase 10.

[0049] Therefore, in the present application, the temperature detection device 50 is arranged at one end of the heat dissipation fins 30 away from the crankcase 10, so as to facilitate the judgment of the heat dissipation of the crankcase 10 by using the heat in the place where heat accumulation is less likely to occur. For example, when the temperature detection device 50 detects that the temperature is too high and controls the controller to turn on the water cooling pipeline, it means that the temperature at the end of the heat dissipation fins 30 away from the crankcase 10 is too high. At this time, it means that the heat dissipation capacity of the heat dissipation fins 30 cannot meet the current heat dissipation requirements. At this time, the temperature detection device 50 controls the water cooling pipeline to turn on so as to realize the secondary heat exchange with the crankcase 10 by using the water cooling pipeline when the heat dissipation fins 30 are difficult to meet the heat dissipation requirements of the crankcase 10. In this way, the heat dissipation capacity of the crankcase 10 can be improved, and the water cooling device 40 will only start when the heat dissipation fins 30 are difficult to meet the heat dissipation requirements of the crankcase 10, so as to reduce the energy consumption of the water cooling device 40.

[0050] In some embodiments, as Figures 1 - 3 shown, a plurality of heat dissipation fins 30 are provided, and the plurality of heat dissipation fins 30 are spaced apart in the direction from the middle area to the two side areas of the side wall of the crankcase 10.

[0051] In this way, the heat dissipation area can be increased through the plurality of heat dissipation fins 30, thereby improving the heat dissipation effect of the crankcase 10 and further improving the heat dissipation efficiency of the crankcase 10.

[0052] In some embodiments, the temperature detection device 50 is located on one of the heat dissipation fins 30 close to the middle area of the side wall of the crankcase 10 among the plurality of heat dissipation fins 30.

[0053] It can be understood that when heat is generated by the rotation of the crankshaft 11, the heat dissipation in the middle region of the side wall close to the crankcase 10 is usually relatively direct, and the heat transfer will cause heat to usually accumulate at the connection of two adjacent side walls of the crankcase 10, that is, the heat at the position of the middle region of the side wall close to the crankcase 10 is usually less than the heat at the connection of two adjacent side walls of the crankcase 10.

[0054] Therefore, in the present application, the temperature detection device 50 is arranged on one of the heat dissipation fins 30 in the middle region of the side wall close to the crankcase 10 among the plurality of heat dissipation fins 30, so as to judge the heat dissipation of the crankcase 10 by using the heat in the place where heat accumulation is less likely to occur. For example, when the temperature detection device 50 detects that the temperature is too high and controls the controller to open the water cooling pipeline, it indicates that the heat dissipation capacity of the middle region of the side wall of the crankcase 10 is poor, and the heat at the connection of two adjacent side walls of the crankcase 10 is greater than the heat at the middle region of the side wall of the crankcase 10. At this time, it indicates that the heat dissipation capacity of the crankcase 10 cannot meet the current heat dissipation requirement. At this time, the temperature detection device 50 controls the water cooling pipeline to open so as to realize the secondary heat exchange with the crankcase 10 by using the water cooling pipeline when the heat dissipation fins 30 are difficult to meet the heat dissipation requirement of the crankcase 10. In this way, the heat dissipation capacity of the crankcase 10 can be improved, and the water cooling device 40 will only start when the heat dissipation fins 30 are difficult to meet the heat dissipation requirement of the crankcase 10, so as to reduce the energy consumption of the water cooling device 40.

[0055] In some embodiments, the water cooling pipeline is embedded in the side wall of the crankcase 10.

[0056] In this way, the side wall of the crankcase 10 can be used to arrange the water cooling pipeline, and there is no need to separately arrange the water cooling pipeline outside the crankcase 10. That is to say, the arrangement of the water cooling pipeline will not occupy the installation space outside the crankcase 10. In this way, it is convenient to reduce the size of the water-cooled high-pressure plunger pump 100 and is conducive to realizing the miniaturized design of the water-cooled high-pressure plunger pump 100.

[0057] At the same time, the hollow in the water cooling pipeline is equivalent to reducing the weight of the side wall of the crankcase 10. In this way, it is convenient to reduce the overall weight of the crankcase 10, and then it is convenient to realize the lightweight design of the crankcase 10.

[0058] In some embodiments, as Figure 3 and Figure 6 shown, the water-cooled high-pressure plunger pump 100 further includes: a packing 60, and the packing 60 is arranged at the connection of the plunger 21 and the pump body 20.

[0059] In this way, by arranging the packing 60, it is convenient to achieve sealing at the connection of the plunger 21 and the pump body 20, thereby reducing the risk of leakage, and the sealing method of the packing 60 has better sealing stability than that of the sealing rubber.

[0060] In some embodiments, the water-cooled high-pressure plunger pump 100 also includes: an elastic member 70, which is sleeved on the packing 60, and the elastic member 70 is elastically connected between the pump body 20 and the other end of the plunger 21; wherein, in the extension direction of the plunger 21, the elastic member 70 is used to apply an elastic preload force to the other end of the plunger 21 toward the end away from the plunger 21 connected to the crankshaft 11.

[0061] In this way, the elastic member 70 can be used to limit the plunger 21 to a certain extent on the radial outer side of the plunger 21, so as to avoid ensuring the movement stability of the plunger 21. In particular, the elastic member 70 can be sleeved on the packing 60 and abut against the packing 60 to fit the packing 60 for balanced pressing. In this way, after long-term operation, the perfect fit between the packing 60 and the plunger 21 and the perfect concentricity of the packing 60 and the plunger 21 can be guaranteed, and the pre-tightening support of the packing 60 ensures the normal use pressure of the plunger 21 pump and improves the service life.

[0062] In particular, the elastic member 70 is used to apply an elastic preload force to the other end of the plunger 21 toward the end away from the plunger 21 connected to the crankshaft 11, so that the elastic member 70 can not only have the above-mentioned function, but also provide a certain elastic force when the other end of the plunger 21 moves toward the end of the plunger 21 connected to the crankshaft 11, so as to reduce the energy consumption required for the movement of the plunger 21.

[0063] In some implementations, the elastic member 70 may be a spring or a leaf spring, which is not limited herein. In the implementation in which the elastic member 70 is a spring, the material of the spring is a high-strength metal material.

[0064] In some embodiments, Figure 2 and Figure 4 As shown, the water-cooled high-pressure plunger pump 100 further includes: a connecting rod assembly 80, which is dynamically connected between the crankshaft 11 and the plunger 21. In this way, the movement of the connecting rod assembly 80 can be used to convert the rotation of the crankshaft 11 into reciprocating linear motion, so as to reduce the difficulty of dynamic connection between the crankshaft 11 and the plunger 21.

[0065] In some embodiments, the axial direction of the crankshaft 11 is a first direction, the moving direction of the plunger 21 is a second direction, the first direction and the second direction intersect, and the connecting rod assembly 80 is used to drive the plunger 21 to move along the second direction when the crankshaft 11 rotates. In this way, the moving direction of the plunger 21 does not coincide with the axial direction of the crankshaft 11, thereby facilitating the reduction of the size of the water-cooled high-pressure plunger pump 100 in the axial direction of the crankshaft 11.

[0066] For example, the first direction is perpendicular to the second direction, so that the movement direction of the plunger 21 does not coincide with the axial direction of the crankshaft 11 , thereby facilitating reduction of the axial dimension of the water-cooled high-pressure plunger pump 100 in the crankshaft 11 .

[0067] In some embodiments, such as Figure 6 As shown, a metal one-way valve 90 is provided at the connection between the plunger 21 and the packing 60. In this way, the metal one-way valve 90 can be used to achieve a further sealing effect, and the metal one-way valve can withstand the impact of frequent high pressure for a long time to avoid the situation of the valve cover being broken.

[0068] In some embodiments, such as Figure 6 As shown, a crankshaft cavity 101 for installing a crankshaft and a cooling cavity 102 for heat insulation or heat exchange are formed in the crankcase 10. The cooling cavity 102 is spaced apart from the crankshaft cavity 101. Among them, a coolant or other cooling liquid can be passed through the cooling cavity 102 to directly exchange heat with the crankcase 10, thereby improving the heat dissipation effect of the crankcase 10.

[0069] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0070] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0071] In the present application, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0072] In this application, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0073] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0074] Although the embodiments of this application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this application, and the scope of this application is defined by the claims and their equivalents.

Claims

1. A water-cooled high-pressure plunger pump (100), characterized in that: include: A crankcase (10), wherein a rotatable crankshaft (11) is arranged in the crankcase (10); A pump body (20) and a plunger (21), wherein the pump body (20) is provided with a suction port (22) and a discharge port, one end of the plunger (21) is inserted into the crankcase (10) and is dynamically connected to the crankshaft (11), and the other end of the plunger (21) extends into the pump body (20); the plunger (21) is sealed with the pump body (20) and is movably mounted on the pump body (20) for adjusting the volume of the pump body (20), The crankcase (10) is provided with heat dissipation fins (30) and a water cooling device (40), wherein the heat dissipation fins (30) are arranged on the outer surface of the crankcase (10), and the water cooling device (40) comprises a controller and a water cooling pipeline, wherein the controller is used to control water inlet and water outlet of the water cooling pipeline, and the water cooling pipeline is used to exchange heat with the crankcase (10); Wherein, the heat dissipation fin (30) is provided with a temperature detection device (50), and the temperature detection device (50) is communicatively connected with the controller.

2. The water-cooled high-pressure plunger pump (100) according to claim 1, characterized in that: The water cooling device (40) is arranged on the outer surface of the crankcase (10) and is located at the connection between two adjacent side walls.

3. The water-cooled high-pressure plunger pump (100) according to claim 2, characterized in that: The temperature detection device (50) is located at an end of the heat dissipation fin (30) away from the crankcase (10).

4. The water-cooled high-pressure plunger pump (100) according to claim 1, characterized in that: A plurality of the heat dissipation fins (30) are provided, and the plurality of heat dissipation fins (30) are distributed at intervals in a direction from a middle area to two side areas of the side wall of the crankcase (10).

5. The water-cooled high-pressure plunger pump (100) according to claim 4, characterized in that: The temperature detection device (50) is located on one of the plurality of heat dissipation fins (30) in a middle area close to the side wall of the crankcase (10).

6. The water-cooled high-pressure plunger pump (100) according to claim 1, characterized in that: The water cooling pipeline is embedded in the side wall of the crankcase (10).

7. The water-cooled high-pressure plunger pump (100) according to any one of claims 1 to 6, characterized in that: Also includes: A packing (60) is provided at the connection between the plunger (21) and the pump body (20).

8. The water-cooled high-pressure plunger pump (100) according to claim 7, characterized in that: Also includes: An elastic member (70), wherein the elastic member (70) is sleeved on the packing (60), and the elastic member (70) is elastically connected between the pump body (20) and the other end of the plunger (21); Wherein, in the extension direction of the plunger (21), the elastic member (70) is used to apply an elastic preload force to the other end of the plunger (21) toward the end away from the plunger (21) connected to the crankshaft (11).

9. The water-cooled high-pressure plunger pump (100) according to claim 1, characterized in that: Also includes: A connecting rod assembly (80) is dynamically connected between the crankshaft (11) and the plunger (21).

10. The water-cooled high-pressure plunger pump (100) according to claim 9, characterized in that: The axial direction of the crankshaft (11) is a first direction, the movement direction of the plunger (21) is a second direction, the first direction and the second direction intersect, and the connecting rod assembly (80) is used to drive the plunger (21) to move along the second direction when the crankshaft (11) rotates.

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