Plunger pump pressure maintaining and compensating device

Abstract

The utility model discloses a plunger pump pressure maintaining and compensating device, and belongs to the technical field of plunger pumps, a plunger pump body comprises a stand and a copper wire motor arranged on the stand, a plunger pump is arranged at the output end of the copper wire motor, and a cooling mechanism used for cooling the plunger pump is arranged on the stand. The cooling mechanism comprises fixing frames symmetrically arranged on the stand and fans oppositely installed on the fixing frames, and a notch is formed between the two fans; the fixing frames are oppositely arranged on the stand, the fans and the cold conduction plates used for assisting the fans are arranged on the fixing frames, and after the cold conduction plates, the refrigeration wafers and the heat conduction fins are matched with one another and the refrigeration wafers are powered on, the refrigeration face is transmitted to the cold conduction plates and the cold conduction battens; the air generated by the fan from the ground to the copper wire motor and the plunger pump can form lower-temperature air through the cold guide strip plate, so that heat dissipation of compensation devices in the copper wire motor and the plunger pump is accelerated, and the service life of the compensation devices is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of plunger pumps, and in particular to a plunger pump pressure maintaining and compensating device. Background Art

[0002] The plunger pump is an important component of the hydraulic system. It transports liquid into the system through the reciprocating motion of the plunger. In some cases, the performance of the plunger pump may be affected due to changes in the working environment, especially when the load fluctuates or the system pressure is unstable. In order to solve this problem, the plunger pump is usually equipped with a compensation device, which can adjust the displacement of the plunger pump or compensate for the flow to maintain stable operation of the system.

[0003] However, when the plunger pump is equipped with a compensation device, the load of the pump may fluctuate when the compensation device adjusts its working state to adapt to load changes. When the load is too large or too small, the efficiency of the plunger pump will decrease, resulting in greater energy loss and higher temperature rise. Especially when there is a sealing problem with the pump body, the compensation device will over-compensate, and excessive compression may occur inside the pump, increasing the friction and energy loss of the pump. The temperature of the entire pump body will rise rapidly, causing the pump body to stop working due to an early warning.

[0004] Therefore, the present application provides a plunger pump pressure maintaining and compensation device to solve the above problems. Utility Model Content

[0005] The present application provides a plunger pump pressure maintaining and compensation device, which aims to solve the problem raised in the background technology that when the compensation device adjusts the working state to adapt to the load change, the load of the pump may fluctuate. When the load is too large or too small, the efficiency of the plunger pump will decrease, resulting in greater energy loss and higher temperature rise, thereby accelerating the aging of the compensation device.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a plunger pump pressure maintaining and compensating device, comprising a stand and a copper wire motor arranged on the stand, a plunger pump being arranged at the output end of the copper wire motor, and a cooling mechanism for cooling the plunger pump being arranged on the stand;

[0007] The cooling mechanism includes a fixed frame symmetrically arranged on the platform and a fan relatively installed on the fixed frame. A recess is opened between the two fans, and a cold conduction plate, a cooling chip, a heat conduction fin and a heat exchanger are arranged in the recess. A cold conduction strip is fixedly installed on the side of the cold conduction plate away from the cooling chip. Two groups of fans are used to dissipate heat to the copper wire motor and the plunger pump on the platform at the same time. The relative inclined arrangement can form a cross airflow. Such an airflow path design can help to take away heat from the plunger pump more quickly and improve the cooling effect.

[0008] Preferably, the side of the refrigeration chip away from the cold plate is bonded to the heat-conducting fins, and the platform is symmetrically distributed with liquid storage tanks corresponding to the heat exchanger. The heat exchanger and the liquid storage tank are connected through a water pipe. The water pipe is made of soft rubber material and will not be affected when the fixed frame rotates.

[0009] Preferably, rail frames are symmetrically arranged on the platform, and the rail frames are provided with slide grooves and sliders for sliding connection on the slide grooves, and fixing rods for connecting with the sliders are symmetrically arranged on the fixing frame.

[0010] Preferably, the lower end of the fixing rod is fixedly connected to an assembly block, and the assembly block is threadedly connected to the slider through a screw. The angle of the fixing rod and the fixing frame can be adjusted later by loosening the screw to facilitate staff to repair the equipment on the platform.

[0011] Preferably, support blocks for supporting the fixing rods are relatively distributed on the stand.

[0012] The plunger pump body is formed by relatively arranging a fixing frame on a platform and arranging a fan and a cooling plate for assisting the fan on the fixing frame. The cooling plate, the cooling chip and the heat-conducting fin cooperate with each other and after the cooling chip is energized, the cooling side is transmitted to the cooling plate and the cooling strip. The wind generated by the fan toward the copper wire motor and the plunger pump can form lower-temperature wind through the cooling strip to accelerate the heat dissipation of the copper wire motor and the compensation device inside the plunger pump, avoid harmful friction aging caused by working under high temperature conditions, and increase its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of a plunger pump pressure maintaining and compensation device;

[0014] Figure 2 It is a structural schematic diagram of the fixed frame in an adjustment state;

[0015] Figure 3 Schematic diagram of the structure of the cooling strip;

[0016] Figure 4 for Figure 1 Schematic diagram of the structure enlarged at point A in the middle.

[0017] In the picture:

[0018] 1. Stand; 11. Copper wire motor; 2. Plunger pump; 3. Cooling mechanism; 31. Fixed frame; 32. Fan; 33. Cooling plate; 34. Cooling strip; 35. Refrigeration chip; 36. Heat conducting fins; 37. Heat exchanger; 38. Water pipe; 4. Fixed rod; 5. Support block; 6. Liquid storage tank; 7. Rail frame; 71. Slide; 72. Slider; 73. Assembly block; 74. Screw. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] This embodiment provides a plunger pump pressure maintaining and compensating device, such as Figure 1-4 As shown, the plunger pump body includes a stand 1 and a copper wire motor 11 arranged on the stand 1, a plunger pump 2 is arranged at the output end of the copper wire motor 11, and a cooling mechanism 3 for cooling the plunger pump 2 is arranged on the stand 1;

[0021] The cooling mechanism 3 includes a fixed frame 31 symmetrically arranged on the stand 1 and a fan 32 relatively installed on the fixed frame 31. A recess is provided between the two fans 32. A cold plate 33, a cooling chip 35, heat conducting fins 36 and a heat exchanger 37 are provided in the recess. A cold strip 34 is fixedly installed on the side of the cold plate 33 away from the cooling chip 35.

[0022] Specifically, the cold plate 33, the cooling chip 35 and the heat-conducting fins 36 cooperate with each other to realize semiconductor refrigeration after the cooling chip 35 is powered on. The cooling side is close to the cold plate 33, and the heating side is in contact with the heat-conducting fins 36. The heat generated will eventually be recovered through the heat exchanger 37. In order to improve the heat energy recovery efficiency, a miniature cooling tower can be additionally set up. The fixed frame 31 is designed relatively, and two sets of fans 32 are used to dissipate heat to the copper wire motor 11 and the plunger pump 2 on the stand 1 at the same time. The relative tilt setting can form a cross airflow. Such an airflow path design can help to take away heat from the plunger pump 2 more quickly, thereby improving the cooling effect.

[0023] The side of the cooling chip 35 away from the cooling plate 33 is bonded to the heat conducting fins 36 . Liquid storage tanks 6 corresponding to the heat exchangers 37 are symmetrically distributed on the platform 1 . The heat exchangers 37 are connected to the liquid storage tanks 6 via water pipes 38 .

[0024] More specifically, by setting a coolant inside the liquid storage tank 6, the pipes inside the heat exchanger 37 contact the gaps of the corresponding heat-conducting fins 36 and absorb heat through the coolant, and then return to the inside of the liquid storage tank 6 for recycling. The water pipe 38 is made of soft rubber material and will not be affected when the fixing frame 31 rotates.

[0025] The platform 1 is symmetrically provided with rails 7 , which are provided with slide grooves 71 and sliders 72 for sliding connection on the slide grooves 71 , and the fixing frame 31 is symmetrically provided with fixing rods 4 for connecting with the sliders 72 .

[0026] It should be noted that the fixing rods 4 at both ends of the fixing frame 31 are connected to the slider 72 on the rail frame 7 and the assembly block 73 at the lower end of the fixing rod 4, and their positions can be adjusted along the path of the slide groove 71 opened on the rail frame 7 so as to move to a more suitable position for heat dissipation.

[0027] The lower end of the fixing rod 4 is fixedly connected with an assembly block 73 , and the assembly block 73 is threadedly connected to the slider 72 via a screw 74 . Support blocks 5 for supporting the fixing rod 4 are relatively distributed on the stand 1 .

[0028] It is worth mentioning that the assembly block 73 and the slider 72 are connected in the form of a threaded connection with a screw 74. The angle of the fixed rod 4 and the fixed frame 31 can be adjusted later by loosening the screw 74. After flipping outward 90°, the support block 5 will provide support for the fixed rod 4. At this time, it is convenient for the staff to provide maintenance work on the copper wire motor 11 and the plunger pump 2 on the platform 1. At the same time, this angle heat dissipation method can be used to cool the copper wire motor 11 and the plunger pump 2 with air.

[0029] During use, a fixing frame 31 is relatively arranged on the stand 1 and a fan 32 and a cooling plate 33 for assisting the fan 32 are arranged on the fixing frame 31. The cooling plate 33, the cooling chip 35 and the heat-conducting fins 36 cooperate with each other and after the cooling chip 35 is powered on, the cooling side is transferred to the cooling plate 33 and the cooling strip 34. The wind generated by the fan 32 toward the copper wire motor 11 and the plunger pump 2 can form lower temperature wind through the cooling strip 34, so as to accelerate the heat dissipation of the copper wire motor 11 and the compensation device inside the plunger pump 2, avoid harmful friction aging caused by working under high temperature conditions, and improve its service life.

[0030] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A plunger pump pressure maintaining and compensating device, comprising a stand (1) and a copper wire motor (11) arranged on the stand (1), a plunger pump (2) being arranged at an output end of the copper wire motor (11), and a cooling mechanism (3) for cooling the plunger pump (2) being arranged on the stand (1); Its characteristics are: The cooling mechanism (3) comprises a fixing frame (31) symmetrically arranged on the platform (1) and a fan (32) relatively mounted on the fixing frame (31); a recess is provided between the two fans (32); a cooling plate (33), a cooling chip (35), a heat conducting fin (36) and a heat exchanger (37) are provided in the recess; a cooling strip (34) is fixedly mounted on a side of the cooling plate (33) away from the cooling chip (35).

2. The plunger pump pressure maintaining and compensating device according to claim 1, characterized in that: The side of the refrigeration chip (35) away from the cold plate (33) is bonded to the heat conducting fin (36), and liquid storage tanks (6) corresponding to the heat exchanger (37) are symmetrically distributed on the platform (1), and the heat exchanger (37) is connected to the liquid storage tank (6) through a water pipe (38).

3. The plunger pump pressure maintaining and compensating device according to claim 2, characterized in that: A rail frame (7) is symmetrically arranged on the platform (1), and a slide groove (71) and a slider (72) for sliding connection on the slide groove (71) are provided on the rail frame (7), and a fixing rod (4) for connecting with the slider (72) is symmetrically arranged on the fixing frame (31).

4. The plunger pump pressure maintaining and compensating device according to claim 3, characterized in that: The lower end of the fixing rod (4) is fixedly connected with an assembly block (73), and the assembly block (73) is threadedly connected to the slider (72) via a screw rod (74).

5. The plunger pump pressure maintaining and compensating device according to claim 4, characterized in that: Support blocks (5) for supporting the fixing rod (4) are relatively distributed on the stand (1).

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