Anti-crystallization plunger pump structure
Patent Information
- Application Number
- CN202521870506.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-01
AI Technical Summary
[0003]然而目前柱塞泵运行过程中产品内部柱塞始终被液体浸泡侵蚀,分配一些特殊液体如碱性液体时容易在柱塞表面形成微结晶,结晶会大幅度增加对产品的密封零件磨损,导致产品的密封性变差,使用寿命变短,必须更换零件才能解决,提高了成本
[0009] 1. It reduces the damage to the sealing structure caused by crystallization, extends the product's service life, and reduces costs;
Smart Images

Figure CN224717840U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plunger pump manufacturing, and more specifically, this utility model relates to a plunger pump structure that prevents crystallization. Background Technology
[0002] A piston pump is an important component of a hydraulic system. It achieves oil suction and pressure by the reciprocating motion of a piston within a cylinder, which changes the volume of the sealed working chamber. Piston pumps offer advantages such as high rated pressure, compact structure, high efficiency, and convenient flow rate adjustment. They are widely used in high-pressure, high-flow-rate applications where flow rate regulation is required, such as hydraulic presses, construction machinery, and ships.
[0003] However, during the operation of current plunger pumps, the plunger inside the product is constantly immersed in liquid and corroded. When dispensing certain special liquids, such as alkaline liquids, microcrystals are easily formed on the plunger surface. These crystals significantly increase the wear on the product's sealing parts, resulting in poor sealing performance, shorter service life, and the need to replace parts to solve the problem, thus increasing costs. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a plunger pump structure that prevents crystallization.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a plunger pump structure for preventing crystallization, comprising a pump body, wherein the pump body is provided with a plunger, a mounting seat and a cavity, the mounting seat is provided with a cylindrical through hole, the plunger passes through the cylindrical through hole of the mounting seat and connects to the cavity, the plunger pumps and discharges the liquid in the cavity by moving up and down linearly, the mounting seat is provided with a channel, the center of the channel is the location of the plunger, the channel flows through the cleaning fluid, and the two ends of the channel are the cleaning fluid inlet and the cleaning fluid outlet, respectively.
[0006] This utility model discloses a plunger pump structure for preventing crystallization, wherein the mounting base is provided with an upper sealing ring and a lower sealing ring at the bottom and top of the cylindrical through hole, respectively.
[0007] This utility model discloses a plunger pump structure for preventing crystallization. The pump body itself has a channel for connecting the cleaning liquid inlet and the cleaning liquid outlet to form a circulation channel.
[0008] Compared with the prior art, the present invention has the following advantages:
[0009] 1. It reduces the damage to the sealing structure caused by crystallization, extends the product's service life, and reduces costs;
[0010] 2. It has a circulation channel, which can automatically perform multiple cleanings, making it simpler and more convenient. You only need to change the water periodically.
[0011] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0012] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:
[0013] Figure 1 This is a schematic diagram of the present invention;
[0014] Figure 2 This is a cross-sectional view of the present invention;
[0015] Figure 3 This is an enlarged view of the present invention;
[0016] The following are marked in the diagram: 1. Pump body; 2. Plunger; 3. Cavity; 4. Upper sealing ring; 5. Lower sealing ring; 6. Cleaning fluid inlet; 7. Cleaning fluid outlet; 8. Mounting base. Detailed Implementation
[0017] The following description, with reference to the accompanying drawings, further details the specific implementation methods of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the function and working principle of each part, the manufacturing process, and the operation and use methods, so as to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the utility model concept and technical solution.
[0018] like Figure 1 , Figure 2 and Figure 3 The diagram shows an anti-crystallization plunger pump structure, comprising a pump body 1, a plunger 2, a mounting base 8, and a cavity 3 within the pump body 1. The mounting base 8 has a cylindrical through-hole through which the plunger 2 passes and connects to the cavity 3. The plunger 2 pumps and discharges liquid from the cavity 3 through a linear up-and-down motion. The mounting base 8 has a channel with the plunger 2 at its center, through which cleaning fluid flows. The two ends of the channel are a cleaning fluid inlet 6 and a cleaning fluid outlet 7, respectively. The mounting base 8 has an upper sealing ring 4 and a lower sealing ring 5 at the bottom and top of the cylindrical through-hole, respectively. The pump body 1 itself has a channel for connecting the cleaning fluid inlet 6 and the cleaning fluid outlet 7, forming a circulation channel.
[0019] Working principle and method
[0020] The plunger 2 moves up and down in a linear motion to pump and discharge, thereby redistributing the solution in the cavity 3. During the pumping process, the plunger 2 detaches from the upper sealing ring 4. An additional flow path is added at the detachment position through the plunger 2, and a new sealing ring structure is added below the flow path to form a seal. Pure water enters the plunger 2 from one end of the flow path to rinse it out of the solution, carrying away the slight residual liquid and crystals on the surface of the plunger 2, forming a non-waste liquid that is discharged from the other end of the flow path.
[0021] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A plunger pump structure for preventing crystallization, comprising a pump body, characterized in that, The pump body is equipped with a plunger, a mounting base, and a cavity. The mounting base has a cylindrical through hole, through which the plunger passes and connects to the cavity. The plunger pumps and discharges the liquid in the cavity by moving up and down in a linear motion. The mounting base has a channel with the plunger located at the center. Cleaning fluid flows through the channel, and the two ends of the channel are the cleaning fluid inlet and the cleaning fluid outlet, respectively.
2. The anti-crystallization plunger pump structure according to claim 1, characterized in that, The mounting base is provided with an upper sealing ring and a lower sealing ring at the bottom and top of the cylindrical through hole, respectively.
3. The anti-crystallization plunger pump structure according to claim 1, characterized in that, The pump body itself has a channel for connecting the cleaning fluid inlet and the cleaning fluid outlet to form a circulation channel.