A reciprocating plunger pump with wide temperature range characteristics

Abstract

This invention relates to the field of reciprocating plunger pump technology, specifically to a reciprocating plunger pump with wide temperature range characteristics, comprising a housing, a servo motor, and a main connector. Air inlet dustproof windows are bolted to the bottom of all four sides of the housing. A maintenance cover is hinged to the top of the housing, and several air outlet dustproof windows are installed inside the maintenance cover. A water circulation cooling device is fixedly installed at the bottom of the housing cavity. The pump adopts a star-shaped configuration, with plungers radially and evenly distributed along the central axis, and connected to the inlet and outlet water via annular pipes. This design significantly reduces flow and pressure pulsation, improves structural compactness and power density, simplifies connecting pipes, and optimizes thermal management, making it suitable for high-pressure, high-flow-rate applications with high stability requirements.

Description

Technical Field

[0001] This invention relates to the field of reciprocating piston pump technology, specifically a reciprocating piston pump with wide temperature range characteristics. Background Technology

[0002] Reciprocating piston pumps are a type of positive displacement reciprocating pump. They rely on the reciprocating motion of the piston in the cylinder to change the volume of the sealed cavity. With the help of a check valve, they can achieve the suction and discharge of liquid. They are characterized by high pressure, accurate metering, and good self-priming. They are often used in high-pressure and high-precision fluid transportation scenarios.

[0003] Traditional reciprocating piston pumps mostly adopt axial or conventional radial arrangement, which generally suffers from large flow and pressure pulsations, easily causing pipeline vibration and impact, and insufficient system stability. Their piston cylinders are mostly connected to the inlet and outlet liquids by independent pipelines, which not only makes the pipeline structure complex and the number of sealing joints numerous, but also makes assembly and maintenance cumbersome, making it difficult to handle pumping operations of different pipeline liquids. At the same time, the overall structural layout is loose, occupying a large space, making it difficult to adjust the flow rate, and lacking integrated flow channel design, resulting in uneven heat distribution and poor adaptability to wide temperature range conditions. They cannot well meet the requirements of on-demand flow, high stable delivery, and compact installation. Based on this, a reciprocating piston pump with wide temperature range characteristics is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a reciprocating piston pump with wide temperature range characteristics to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a reciprocating plunger pump with wide temperature range characteristics, comprising a housing, a servo motor and a main connector, wherein air inlet dustproof windows are bolted to the bottom of all four sides of the housing, and a maintenance cover is movably mounted on the top of the housing via a hinge, wherein a plurality of air outlet dustproof windows are installed inside the maintenance cover, and a water circulation cooling device is fixedly installed at the bottom of the inner cavity of the housing.

[0006] Several fan blades are fixedly mounted on the outer side of the servo motor output shaft via support rods. A speed-changing gearbox is driven to the output end of the servo motor. An eccentric drive wheel is driven to the output end of the speed-changing gearbox. Several disconnectable connecting rods are driven to the top of the eccentric drive wheel. An adjusting rod sleeve is fitted onto the outer side of the middle portion of each disconnectable connecting rod. Several adjusting holes are provided at the top and bottom of the adjusting rod sleeve. A rotating connecting seat is connected to the outer end of each disconnectable connecting rod. A sealing plunger is rotatably connected to the other side of the rotating connecting seat. A plunger cylinder is sealed to the outer side of the sealing plunger. The side wall of the plunger cylinder has... The spiral water cooling channel has water circulation connecting pipes at both ends. Several heat dissipation rings are fixedly installed on the outer side of the plunger cylinder. The output end of the plunger cylinder is connected to an outlet one-way valve pipe. The other end of the outlet one-way valve pipe is connected to an outlet ring pipe. The inner wall of the outlet ring pipe has a first jacket layer. The bottom of the outlet ring pipe is connected to several outlet connecting pipe valves. The input end of the plunger cylinder is connected to two inlet one-way valve pipes. The bottom ends of the two inlet one-way valve pipes are connected to an inlet ring pipe. The inside of the inlet ring pipe has a second jacket layer. The bottom of the inlet ring pipe is connected to several inlet connecting pipe valves.

[0007] One side of the main connector is connected to a water circulation connector, and the other end of the water circulation connector is connected to several branch connectors through a closed structure. The other end of each branch connector is connected to a branch connector.

[0008] Preferably, the air intake dustproof window is installed on the outside of the housing by bolts, the inspection cover is fixed to the top of the housing by bolts, the air outlet dustproof window is evenly distributed in a circle inside the inspection cover, the bottom of the housing has four sides with slots adapted to the air intake dustproof window, and the top of the housing has a slot adapted to the inspection cover.

[0009] Preferably, the water inlet of the water circulation cooling device is connected to a cooling water connector, the water circulation connector is fixedly installed on the outside of the plunger cylinder, and the output of the water circulation cooling device is connected to the water circulation connector, the interior of the first jacket layer and the second jacket layer through a pipe. The interior of the first jacket layer and the second jacket layer is fixed by a bracket.

[0010] Preferably, the fan blades are evenly distributed circumferentially on the outside of the servo motor output shaft, the heat dissipation rings are linearly and evenly distributed with staggered heights on the outside of the plunger cylinder, and the position of the exhaust dustproof window corresponds to the position of the heat dissipation rings.

[0011] Preferably, the gearbox is fixedly mounted on the inner wall of the housing by a bracket, the outer sides of the outlet ring pipe and the inlet ring pipe are both fixedly mounted on the inner wall of the housing by a bracket, the servo motor is fixedly mounted on the bottom of the inner cavity of the housing by a bracket, and the servo motor, the gearbox and the outlet ring pipe are distributed in a vertical axis.

[0012] Preferably, the adjustment hole is formed through the interior of the adjustment rod sleeve and the disconnected connecting rod. The adjustment hole is linearly and evenly distributed inside the disconnected connecting rod and the adjustment rod sleeve. The middle part of the disconnected connecting rod has a disconnected and separated structure. The opposite ends of the disconnected connecting rod and the adjustment rod sleeve are fixedly connected by bolts passing through the adjustment hole.

[0013] Preferably, the outlet connecting pipe valves are evenly distributed circumferentially at the bottom of the outlet ring pipe, and the outlet connecting pipe valves are fixedly inserted through the housing and extend to the outside of the housing. The inlet connecting pipe valves are evenly distributed circumferentially at the bottom of the inlet ring pipe, and the inlet connecting pipe valves are fixedly inserted through the housing and extend to the outside of the housing. The outlet connecting pipe valves and the inlet connecting pipe valves are evenly distributed circumferentially on the outer wall of the housing. The connectors have two specifications: one size is adapted to the size of the outlet connecting pipe valve, and the other size is adapted to the size of the inlet connecting pipe valve.

[0014] Preferably, the plunger cylinder and the disconnected connecting rod are evenly distributed in a star-shaped circumferential radial pattern on the inner side of the outlet ring pipe. The materials of the plunger cylinder and the sealing plunger are both adapted for a wide temperature range. The number of plunger cylinders, sealing plungers, outlet one-way valve pipes and inlet one-way valve pipes is at least five sets.

[0015] Preferably, a smart control panel is mounted on the front of the housing.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the equipment needs to pump, the servo motor starts to drive the gearbox to rotate, and after the gearbox changes speed, it drives the eccentric drive wheel to rotate. The eccentric action of the eccentric drive wheel causes the disconnected connecting rod to reciprocate, and through the rotating connecting seat, it drives the sealing plunger to reciprocate inside the plunger cylinder. Then, through the one-way communication between the outlet one-way valve pipe and the inlet one-way valve pipe, a pressure difference is generated inside the outlet ring pipe and the inlet ring pipe. The inlet connecting pipe valve introduces the liquid into the inlet ring pipe, and then through the inlet one-way valve pipe, it is introduced into the plunger cylinder. Under the reciprocating cycle of the sealing plunger, it is introduced into the outlet ring pipe through the outlet one-way valve pipe, which increases the pressure inside the outlet ring pipe. The liquid is then discharged to the equipment through the outlet connecting pipe valve. The overall flow rate and temperature are reduced, and the pressure pulsation rate is reduced. The volume and sealing points are reduced, the maintenance time is reduced, and the service life is indirectly increased.

[0017] 2. When the water circulation cooling device is started, the coolant enters the interior of the first and second jacket layers respectively, and conducts heat out to circulate to the heat exchange cooling zone of the water circulation cooling device. The output end of the water circulation cooling device is fed in through the water circulation connecting pipe. After spiral circulation inside the spiral water cooling channel, the heat of the plunger cylinder is carried out and the water circulation connecting pipe is led out to the heat exchange cooling zone of the water circulation cooling device. In this way, the heat of the outlet ring pipe, plunger cylinder and inlet ring pipe is carried out. Combined with airflow heat dissipation, it indirectly ensures the stability of the working environment and extends the service life.

[0018] 3. When it is necessary to adjust the movement of the sealing plunger, remove the fixing bolts of the adjusting rod sleeve and the disconnecting connecting rod from the inside of the adjusting hole, and adjust the relative position of the disconnecting connecting rod and the adjusting rod sleeve to make the adjusting hole aligned and then fix it again with bolts. This adjusts the length of the disconnecting connecting rod, thereby changing the movement of the sealing plunger and indirectly adjusting the displacement of the reciprocating pump. Opening the inspection cover allows for easy adjustment of the reciprocating movement, making it easier to adapt to different working conditions and enhancing the performance. Attached Figure Description

[0019] Figure 1 This is a front-view stereoscopic structural diagram of the present invention.

[0020] Figure 2 This is a rear-view stereoscopic view of the structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the front view of the concealed shell three-dimensional structure of the present invention.

[0022] Figure 4 This is a front-view stereoscopic structural diagram of the main connector of the present invention.

[0023] Figure 5 This is a rear-view three-dimensional structural diagram of the main connector of the present invention.

[0024] Figure 6 This is a top-view cross-sectional schematic diagram of the internal structure of the present invention.

[0025] Figure 7 This is a front sectional view of the internal structure of the present invention.

[0026] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point A in the middle.

[0027] Figure 9 For the present invention Figure 7 Enlarged structural diagram at point B.

[0028] In the diagram: 1. Shell; 2. Inspection cover; 3. Exhaust dustproof window; 4. Outlet connecting pipe valve; 5. Inlet dustproof window; 6. Inlet connecting pipe valve; 7. Intelligent control panel; 8. Cooling water connector; 9. Outlet ring pipe; 901. Jacket layer one; 10. Plunger cylinder; 11. Sealing plunger; 12. Heat dissipation ring; 13. Servo motor; 14. Gearbox; 15. Outlet one-way valve pipe; 16. Inlet one-way valve pipe; 17. Inlet ring pipe; 1701. Jacket layer two; 18. Eccentric drive wheel; 19. Disconnecting connecting rod; 20. Adjusting rod sleeve; 21. Water circulation cooling device; 22. Fan blade; 23. Adjusting hole; 24. Rotating connecting seat; 25. Spiral water cooling channel; 26. Water circulation connecting pipe; 27. Main connector; 28. Sub-connecting pipe; 29. ​​Sub-connecting pipe. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-9 The present invention provides a technical solution: a reciprocating plunger pump with wide temperature range characteristics, including a housing 1, a servo motor 13 and a main connector 27. The bottom of the four sides of the housing 1 are all bolted with air inlet dustproof windows 5. The top of the housing 1 is movably mounted with a maintenance cover 2 via a hinge. The maintenance cover 2 has several air outlet dustproof windows 3 installed inside. A water circulation cooling device 21 is fixedly installed at the bottom of the inner cavity of the housing 1.

[0031] Several fan blades 22 are fixedly mounted on the outer side of the output shaft of the servo motor 13 via a support rod. The output end of the servo motor 13 is driven by a transmission gearbox 14, and the output end of the transmission gearbox 14 is driven by an eccentric drive wheel 18. Several disconnected connecting rods 19 are driven by the top of the eccentric drive wheel 18. An adjusting rod sleeve 20 is sleeved on the outer side of the middle part of the disconnected connecting rod 19. Several adjusting holes 23 are opened at the top and bottom of the adjusting rod sleeve 20. A rotating connecting seat 24 is connected to the outer end of the disconnected connecting rod 19. A sealing plunger 11 is rotatably connected to the other side of the rotating connecting seat 24. A plunger cylinder 10 is sealed on the outer side of the sealing plunger 11. A screw is opened on the side wall of the plunger cylinder 10. The spiral water cooling channel 25 has water circulation connecting pipes 26 connected to both ends. Several heat dissipation rings 12 are fixedly installed on the outside of the plunger cylinder 10. The output end of the plunger cylinder 10 is connected to the outlet one-way valve pipe 15. The other end of the outlet one-way valve pipe 15 is connected to the outlet ring pipe 9. The inner wall of the outlet ring pipe 9 is provided with a jacket layer 901. The bottom of the outlet ring pipe 9 is connected to several outlet connecting pipe valves 4. The input end of the plunger cylinder 10 is connected to two inlet one-way valve pipes 16. The bottom end of the two inlet one-way valve pipes 16 is connected to an inlet ring pipe 17. The inside of the inlet ring pipe 17 is provided with a jacket layer 1701. The bottom of the inlet ring pipe 17 is connected to several inlet connecting pipe valves 6.

[0032] One side of the main connector 27 is connected to a water circulation connector 26, and the other end of the water circulation connector 26 is connected to several branch connectors 28 through a closed structure. The other end of the branch connectors 28 is connected to a branch connector 29.

[0033] The working principle of the above technical solution is as follows: In use, the main connector 27 is connected to the inlet and outlet ends of the equipment, and the branch connectors 29 are respectively connected to the outside of the outlet connecting pipe valve 4 and the inlet connecting pipe valve 6. The cooling water connector 8 is connected to the external hot water circulation device. When pumping is required, the servo motor 13 starts and drives the gearbox 14 to rotate. After the gearbox 14 changes speed, it drives the eccentric drive wheel 18 to rotate. The eccentric action of the eccentric drive wheel 18 causes the disconnected connecting rod 19 to reciprocate. Through the rotating connecting seat 24, it drives the sealing plunger 11 to reciprocate inside the plunger cylinder 10. Then, through the one-way communication between the outlet one-way valve pipe 15 and the inlet one-way valve pipe 16, the outlet ring pipe is activated. A pressure difference is generated between the inlet ring pipe 17 and the outlet ring pipe 9. The inlet connecting pipe valve 6 introduces the liquid into the inlet ring pipe 17 through the connecting branch pipe 28 and the water circulation connecting pipe 26. Then, it is introduced into the plunger cylinder 10 through the inlet check valve 16. Under the reciprocating action of the sealing plunger 11, the liquid is introduced into the outlet ring pipe 9 through the outlet check valve 15, which increases the pressure inside the outlet ring pipe 9. The liquid is then discharged through the outlet connecting pipe valve 4 and finally discharged to the equipment through the connecting branch pipe 28 and the water circulation connecting pipe 26 connected to the outlet connecting pipe valve 4. The overall flow rate and temperature are reduced, the pressure pulsation rate is reduced, and the volume and sealing points are reduced, which reduces maintenance time and indirectly increases service life.

[0034] In another implementation scheme, such as Figures 1-9 As shown, the air intake dustproof window 5 is installed on the outside of the housing 1 by bolts, the inspection cover 2 is fixed to the top of the housing 1 by bolts, the air outlet dustproof window 3 is evenly distributed in a circle inside the inspection cover 2, the bottom of the housing 1 has slots on all four sides that are compatible with the air intake dustproof window 5, and the top of the housing 1 has slots that are compatible with the inspection cover 2.

[0035] When the servo motor 13 rotates, it causes the connected fan blades 22 to rotate. The airflow enters the interior of the housing 1 through the intake dustproof window 5 and flows from bottom to top, causing heat to be carried upwards. This dissipates the heat from the plunger cylinder 10 through the heat dissipation ring 12 and finally exhausts it through the exhaust dustproof window 3, increasing the airflow heat dissipation capacity. The plunger cylinder 10 and the exhaust dustproof window 3 are vertically close to each other, resulting in high heat dissipation efficiency and indirectly maintaining the stability of the working environment.

[0036] In another implementation scheme, such as Figures 1-9 As shown, the water circulation end of the water circulation device 21 is connected to the cooling water connector 8, the water circulation connection pipe 26 is fixedly installed on the outside of the plunger cylinder 10, and the output circulation end of the water circulation device 21 is connected to the water circulation connection pipe 26, the interior of the first jacket layer 901 and the second jacket layer 1701 through a pipe. The interior of the first jacket layer 901 and the second jacket layer 1701 is fixed by a bracket.

[0037] One-way flow guide pipes are connected to the diagonal corners of jacket layer 901 and jacket layer 1701, and are connected to the cooling circulation end of water circulation cooling device 21 through the one-way flow guide pipes and pipes. When water circulation cooling device 21 is started, the coolant output enters the interior of jacket layer 901 and jacket layer 1701 through a pipe and one-way flow guide pipe respectively, and flows diagonally under the annular flow guide, exporting heat to the heat exchange cooling zone of water circulation cooling device 21. The output end of water circulation cooling device 21 is input through pipe branch channel water circulation connection pipe 26, and after spiral circulation inside spiral water cooling channel 25, the heat of plunger cylinder 10 is carried out, and is exported to the heat exchange cooling zone of water circulation cooling device 21 through the water circulation connection pipe 26 at the other end. In this way, the heat of outlet ring pipe 9, plunger cylinder 10 and inlet ring pipe 17 is carried out. Combined with airflow heat dissipation, it indirectly ensures the stability of the working environment and extends the service life.

[0038] In another implementation scheme, such as Figures 1-9 As shown, the fan blades 22 are evenly distributed in a circle on the outside of the output shaft of the servo motor 13, and the heat dissipation rings 12 are evenly distributed in a linear pattern with staggered heights on the outside of the plunger cylinder 10. The position of the exhaust dustproof window 3 corresponds to the position of the heat dissipation rings 12.

[0039] When the servo motor 13 rotates, it drives the fan blades 22 to rotate via the connecting rod, applying an upward airflow effect and distributing the airflow to the outside of the heat dissipation ring 12. The heat dissipation ring 12 is staggered in length and linearly and evenly distributed on the outside of the plunger cylinder 10, so that the heat and airflow come into full contact, stabilizing the heat dissipation effect. The airflow is also discharged through the exhaust dust window 3 and the corresponding position of the plunger cylinder 10. Combined with the thermal upward effect of the airflow, the heat dissipation is stable, ensuring the working effect.

[0040] In another implementation scheme, such as Figures 1-9 As shown, the gearbox 14 is fixedly installed on the inner wall of the housing 1 by a bracket. The outer sides of the outlet ring pipe 9 and the inlet ring pipe 17 are both fixedly installed on the inner wall of the housing 1 by a bracket. The servo motor 13 is fixedly installed at the bottom of the inner cavity of the housing 1 by a bracket. The servo motor 13, the gearbox 14 and the outlet ring pipe 9 are distributed in a vertical axis.

[0041] The plunger cylinder 10, sealing plunger 11, gearbox 14, outlet ring pipe 9, and inlet ring pipe 17 are all fixed inside the housing 1 by brackets. The housing 1 serves to isolate the internal and external environments and provide installation support. It also provides a fixing function for the rotation of the servo motor 13 and gearbox 14, ensuring structural stability. The vertical axis distribution of the servo motor 13, gearbox 14, and outlet ring pipe 9 facilitates space utilization, reduces the floor area, and is convenient for airflow cooling. It also allows the inspection cover 2 to be opened for maintenance of the inner structure of the outlet ring pipe 9, indirectly extending its service life and increasing maintenance convenience.

[0042] In another implementation scheme, such as Figures 1-9 As shown, the adjustment hole 23 is opened through the interior of the adjustment rod sleeve 20 and the disconnected connecting rod 19. The adjustment hole 23 is linearly and evenly distributed inside the disconnected connecting rod 19 and the adjustment rod sleeve 20. The middle part of the disconnected connecting rod 19 has a disconnected and separated structure. The opposite ends of the disconnected connecting rod 19 and the adjustment rod sleeve 20 are fixedly connected by bolts passing through the adjustment hole 23.

[0043] The disconnected design of the disconnected connecting rod 19 is fixed at the break point by the adjusting rod sleeve 20. When it is necessary to adjust the movement of the sealing plunger 11, the adjusting rod sleeve 20 and the fixing bolt of the disconnected connecting rod 19 are removed from the adjusting hole 23. After adjusting the relative position of the disconnected connecting rod 19 and the adjusting rod sleeve 20, the adjusting hole 23 is aligned and fixed again by the bolt, thereby adjusting the length of the disconnected connecting rod 19, thereby changing the movement of the sealing plunger 11, and indirectly adjusting the displacement of the reciprocating pump. The reciprocating movement can be easily adjusted by opening the inspection cover 2 through displacement, which facilitates the adaptation to working conditions and improves the performance.

[0044] In another implementation scheme, such as Figures 1-9 As shown, the outlet connecting pipe valve 4 is evenly distributed around the bottom of the outlet ring pipe 9. The outlet connecting pipe valve 4 is fixedly inserted through the housing 1 and extends to the outside of the housing 1. The inlet connecting pipe valve 6 is evenly distributed around the bottom of the inlet ring pipe 17. The inlet connecting pipe valve 6 is fixedly inserted through the housing 1 and extends to the outside of the housing 1. The outlet connecting pipe valve 4 and the inlet connecting pipe valve 6 are evenly distributed around the outer wall of the housing 1. The connector 29 has two specifications: one size is adapted to the size of the outlet connecting pipe valve 4, and the other size is adapted to the size of the inlet connecting pipe valve 6.

[0045] The outlet connection valve 4 and the inlet connection valve 6 are distributed on the four sides of the housing 1 respectively, and are connected by the branch connectors 29 to make the liquid flow integrated. The use of diversion and concentration reduces pulsating pressure, and the layout improves response speed. The annular pipe reduces pipeline vibration. When integrated flow is not required, the outlet connection valve 4 and the inlet connection valve 6 can be connected to the pipeline separately. For example, different liquid flow rates that need to be mixed can be pumped in and out in equal amounts, which can change the pumping effect as needed. In addition, both the outlet connection valve 4 and the inlet connection valve 6 are equipped with valves. When more connections are not needed, some of the outlet connection valve 4 and the inlet connection valve 6 can be closed, which further increases convenience.

[0046] In another implementation scheme, such as Figures 1-9 As shown, the plunger cylinder 10 and the disconnected connecting rod 19 are evenly distributed in a star-shaped circumferential radial pattern on the inner side of the outlet ring pipe 9. The materials of the plunger cylinder 10 and the sealing plunger 11 are both adapted for a wide temperature range. The number of plunger cylinder 10, sealing plunger 11, outlet one-way valve pipe 15 and inlet one-way valve pipe 16 is at least five sets.

[0047] Adopting a star-shaped design, the plungers are radially and evenly distributed along the central axis and connected to the inlet and outlet water via an annular pipe. This structure significantly reduces flow and pressure pulsation, improves structural compactness and power density, simplifies connecting pipelines, and optimizes thermal management. It is suitable for high-pressure, high-flow scenarios with high stability requirements. At the same time, it solves the comprehensive pain points of traditional plunger pumps in terms of pulsation, size, maintenance, and efficiency, resulting in reduced flow / pressure pulsation rate, extended system life, 30-50% reduction in size, increased power density, 60% reduction in sealing points, leakage rate <0.05ml / min, shortened maintenance time, and reduced downtime costs. In terms of materials, the sealing plunger 11 is made of ceramic or nickel-based alloy, Al2O3 / ZrO2, and the plunger cylinder 10 is made of duplex stainless steel, suitable for wide temperature range conditions of -40℃ to 200℃. It is equipped with multi-stage combined seals: main seal, FFKM / FKM, auxiliary seal, graphite, and PEEK retaining rings, suitable for high pressure ≤100MPa and wide temperature range conditions. The lubrication structure and lubricant are optimized for the inner sides of the plunger cylinder 10 and the sealing plunger 11, which are the main wear points. The preferred number of cylinders is five, six, or seven, distributed at equal angles, such as 6 cylinders at 60°, with time superposition and annular pipe buffering pressure waves to ensure minimal flow pulsation, reduced pulsation rate, and extended system life.

[0048] In another implementation scheme, such as Figures 1-9 As shown, a smart control panel 7 is installed on the front of the housing 1.

[0049] The intelligent control panel 7 provides the structure, and the intelligent control system adds intelligent redundancy. The intelligent control system is built into the intelligent hardware. For example, during intelligent transformation, the built-in temperature sensor is used, along with the intelligent buffer inside the outlet ring pipe 9 and the inlet ring pipe 17. In addition, the control of the lubrication structure is added to the wear area inside the plunger cylinder 10 and the sealing plunger 11, and the servo motor 13 and the water circulation cooling device 21 are controlled, thus ensuring the foundation for subsequent improvements. The output end of the intelligent control panel 7 is electrically connected to the input end of the servo motor 13 and the water circulation cooling device 21 through wires.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reciprocating plunger pump with wide temperature range characteristics, comprising a housing (1), a servo motor (13), and a main connector (27), characterized in that: The bottom of the four sides of the housing (1) is equipped with air inlet dustproof windows (5) by bolts. The top of the housing (1) is equipped with a maintenance cover (2) by hinge. The maintenance cover (2) is equipped with several air outlet dustproof windows (3). A water circulation cooling device (21) is fixedly installed at the bottom of the inner cavity of the housing (1). Several fan blades (22) are fixedly installed on the outer side of the output shaft of the servo motor (13) via a support rod. The output end of the servo motor (13) is connected to a transmission gearbox (14). The output end of the transmission gearbox (14) is connected to an eccentric drive wheel (18). Several disconnected connecting rods (19) are connected to the top of the eccentric drive wheel (18). An adjusting rod sleeve (20) is sleeved on the outer side of the middle part of the disconnected connecting rod (19). Several adjusting holes (23) are opened at the top and bottom of the adjusting rod sleeve (20). A rotating connecting seat (24) is connected to the outer end of the disconnected connecting rod (19). A sealing plunger (11) is rotatably connected to the other side of the rotating connecting seat (24). A plunger cylinder (10) is sealed on the outer side of the sealing plunger (11). A spiral water-cooled ... The spiral water cooling channel (25) is connected to water circulation connecting pipes (26) at both ends. Several heat dissipation rings (12) are fixedly installed on the outside of the plunger cylinder (10). The output end of the plunger cylinder (10) is connected to an outlet one-way valve pipe (15). The other end of the outlet one-way valve pipe (15) is connected to an outlet ring pipe (9). The inner wall of the outlet ring pipe (9) is provided with a first jacket layer (901). The bottom of the outlet ring pipe (9) is connected to several outlet connecting pipe valves (4). The input end of the plunger cylinder (10) is connected to two inlet one-way valve pipes (16). The bottom ends of the two inlet one-way valve pipes (16) are connected to an inlet ring pipe (17). The inside of the inlet ring pipe (17) is provided with a second jacket layer (1701). The bottom of the inlet ring pipe (17) is connected to several inlet connecting pipe valves (6). One side of the main connector (27) is connected to a water circulation connector (26), and the other end of the water circulation connector (26) is connected to several branch connectors (28) through a closed structure. The other end of the branch connectors (28) is connected to a branch connector (29).

2. A reciprocating plunger pump with wide temperature range characteristics according to claim 1, characterized in that: The air intake dustproof window (5) is installed on the outside of the housing (1) by bolts. The inspection cover (2) is fixed to the top of the housing (1) by bolts. The air outlet dustproof window (3) is evenly distributed in a circle inside the inspection cover (2). The bottom of the housing (1) has slots on all four sides that are compatible with the air intake dustproof window (5). The top of the housing (1) has slots that are compatible with the inspection cover (2).

3. A reciprocating plunger pump with wide temperature range characteristics according to claim 1, characterized in that: The water circulation cooling device (21) has a cooling water connector (8) at its inlet end. The water circulation connecting pipe (26) is fixedly installed on the outside of the plunger cylinder (10). The output circulation end of the water circulation cooling device (21) is connected to the inside of the water circulation connecting pipe (26), the first jacket layer (901), and the second jacket layer (1701) through a pipe. The inside of the first jacket layer (901) and the second jacket layer (1701) is fixed by a bracket.

4. A reciprocating plunger pump with wide temperature range characteristics according to claim 1, characterized in that: The fan blades (22) are evenly distributed around the outside of the output shaft of the servo motor (13), and the heat dissipation ring (12) is evenly distributed linearly with staggered heights around the outside of the piston cylinder (10). The position of the exhaust dustproof window (3) corresponds to the position of the heat dissipation ring (12).

5. A reciprocating plunger pump with wide temperature range characteristics according to claim 1, characterized in that: The gearbox (14) is fixedly installed on the inner wall of the housing (1) by a bracket. The outer sides of the outlet ring pipe (9) and the inlet ring pipe (17) are both fixedly installed on the inner wall of the housing (1) by a bracket. The servo motor (13) is fixedly installed at the bottom of the inner cavity of the housing (1) by a bracket. The servo motor (13), the gearbox (14) and the outlet ring pipe (9) are distributed along a vertical axis.

6. A reciprocating plunger pump with wide temperature range characteristics according to claim 1, characterized in that: The adjustment hole (23) is opened through the interior of the adjustment rod sleeve (20) and the disconnected connecting rod (19). The adjustment hole (23) is linearly and evenly distributed inside the disconnected connecting rod (19) and the adjustment rod sleeve (20). The middle part of the disconnected connecting rod (19) has a disconnected and separated structure. The opposite ends of the disconnected connecting rod (19) and the adjustment rod sleeve (20) are fixedly connected by bolts through the adjustment hole (23).

7. A reciprocating plunger pump with wide temperature range characteristics according to claim 1, characterized in that: The outlet connecting pipe valve (4) is evenly distributed around the bottom of the outlet ring pipe (9). The outlet connecting pipe valve (4) is fixedly inserted through the housing (1) and extends to the outside of the housing (1). The inlet connecting pipe valve (6) is evenly distributed around the bottom of the inlet ring pipe (17). The inlet connecting pipe valve (6) is fixedly inserted through the housing (1) and extends to the outside of the housing (1). The outlet connecting pipe valve (4) and the inlet connecting pipe valve (6) are evenly distributed around the outer wall of the housing (1). The connector (29) has two specifications: one size is adapted to the size of the outlet connecting pipe valve (4), and the other size is adapted to the size of the inlet connecting pipe valve (6).

8. A reciprocating plunger pump with wide temperature range characteristics according to claim 1, characterized in that: The plunger cylinder (10) and the disconnected connecting rod (19) are evenly distributed in a star-shaped circumferential radial pattern on the inner side of the outlet ring pipe (9). The materials of the plunger cylinder (10) and the sealing plunger (11) are both adapted to a wide temperature range. The number of the plunger cylinder (10), the sealing plunger (11), the outlet one-way valve pipe (15), and the inlet one-way valve pipe (16) is at least five sets.

9. A reciprocating plunger pump with wide temperature range characteristics according to claim 1, characterized in that: The front of the housing (1) is equipped with a smart control panel (7).

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