Buffer pipe structure of pumping system
By introducing a buffer tube structure consisting of flexible hoses and rigid tubes into the pumping system, the problems of pressure fluctuations and unstable flow during material pumping are solved, resulting in more stable material conveying and equipment protection, and reduced wear and energy consumption.
Patent Information
- Application Number
- CN202423247073.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing material pumping systems suffer from large pressure fluctuations and unstable flow rates, leading to discontinuous pumping, uneven mixing, and severe equipment wear.
The system employs a buffer tube structure that includes both flexible hoses and rigid tubes, connected by a reducing coupling. The flexible hoses store energy and buffer materials during pressure fluctuations, reducing pressure fluctuations and improving flow stability.
It significantly reduces pressure fluctuations during pumping, improves system stability and continuity, reduces equipment wear and maintenance costs, and enhances pumping efficiency and energy utilization.
Smart Images

Figure CN223825855U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a pumping system, specifically to a buffer tube in a pumping system. Background Technology
[0002] Existing material pumping systems often experience significant pressure fluctuations and unstable pumping flow rates during the pumping process. In some systems, such as those using S-tubes, pressure loss can occur during reversal, leading to momentary interruptions in pumping. These rapid pressure changes cause intermittent material delivery, uneven mixing, reduced pumping efficiency, accelerated equipment wear, and even damage. Utility Model Content
[0003] To address the aforementioned problems, this utility model provides a pumping system buffer pipe structure that can adjust pumping pressure fluctuations, stabilize pumping flow, improve pumping system efficiency and reliability, and reduce equipment damage.
[0004] The buffer pipe structure of the pumping system of this utility model includes an elastic hose, a rigid pipe, a reducing connector A, and a reducing pipe connector B; one end of the elastic hose is sleeved outside the large end of the reducing pipe connector A, the small end of the reducing pipe connector A is connected to the small end of the reducing pipe connector B, and the other end of the elastic hose is connected to the pipe connector; the entire elastic hose is sleeved with a rigid pipe, and an expansion space for the elastic hose is maintained between the rigid pipe and the elastic hose; the two ends of the rigid pipe are tapered and engage with the elastic hose and the pipe connector inside the elastic hose.
[0005] Furthermore, the other end of the flexible hose is connected to a reducing pipe fitting C, and the flexible hose is sleeved over the small end of the reducing pipe fitting C. Thus, the reducing pipe fitting connects to the discharge ports of different pumping systems, and materials are fed from the pumping system into the flexible hose through the fitting.
[0006] Furthermore, the rigid tube has several slots along its two narrow ends in the circumferential direction, and a pipe clamp is provided on the outside of the rigid tube to connect the rigid tube to the flexible hose and the pipe joint inside the flexible hose.
[0007] Furthermore, the rigid tube consists of a central cylindrical section and reducing pipe fittings connected to both ends of the cylindrical section.
[0008] Furthermore, the diameter ratio of the rigid tube to the flexible hose is 4:3. This ratio optimizes the effect of the flexible hose's expansion volume.
[0009] Furthermore, the rigid tube is a steel pipe.
[0010] Furthermore, the flexible hose is a rubber hose.
[0011] Furthermore, the larger end of the reducing pipe fitting B is connected to a flange, thereby connecting it to a material conveying pipeline via the flange.
[0012] The buffer pipe structure of the pumping system described in this invention, when material in the pumping system enters the elastic hose through the discharge port, a pressure buildup occurs before the small end A of the reducing pipe joint, causing the elastic hose to store energy. When the pumping system pressure fluctuates, or when the S valve of the pumping system switches momentarily, the pumped slurry pressure is lost, causing the elastic hose to contract and push the material inside the elastic hose forward, thus achieving a buffering effect. The buffer pipe structure of the pumping system described in this invention significantly reduces the pressure fluctuation amplitude during the pumping process, improving the stability and continuity of pumping; it effectively reduces wear and damage to the pumping system caused by pressure shocks, lowering maintenance costs; and due to more stable pressure, pumping efficiency is improved, and energy consumption is correspondingly reduced. Attached Figure Description
[0013] Figure 1 This is an external structural diagram of the buffer pipe structure of the pumping system described in this utility model.
[0014] Figure 2 This is a longitudinal sectional view of the buffer pipe structure of the pumping system described in this utility model.
[0015] Part number description in the image:
[0016] 1. 120-80mm reducing fitting A; 2. 125-80mm reducing fitting B; 3. 160-125mm reducing fitting; 4. 180-120mm reducing fitting C; 5. Flange; 6. Pipe clamp; 7. 160mm steel pipe; 8. 120mm rubber hose. Detailed Implementation
[0017] The following is combined Figures 1 to 2 The buffer pipe structure of the pumping system described in this utility model will be described in detail.
[0018] The buffer pipe structure of the pumping system described in this utility model includes a 120mm rubber pipe 8, a 180mm steel pipe 7, a 120-80mm reducing joint A1 and a 125-80mm reducing pipe joint B2, a 180-120mm reducing joint C4, as well as a pipe clamp 6 and a flange 5.
[0019] One end of the 120mm rubber tube 8 is sleeved outside the large end of the 120-80mm reducer A1, the small end of the 120-80mm reducer A1 is connected to the small end of the 125-80mm reducer B2, and the large end of the 125-80mm reducer B2 is connected to the flange 5, thereby connecting to the material conveying pipeline through the flange 5.
[0020] The other end of the 120mm rubber tube 8 is fitted onto the small end of the 180-120mm reducing connector C4, and the large end of the 180-120mm reducing connector C4 is connected to the discharge port of the pumping system. The material is fed into the rubber tube 8 from the pumping system through the 180-120mm reducing connector C4.
[0021] A 160mm steel pipe 7 is fitted over a rubber hose 8. The steel pipe 7 consists of a 160mm cylinder and 160-125mm reducing couplings C3 connected to both ends of the cylinder. The smaller end of the 160-125mm reducing coupling C3 has several circumferential slots. Pipe clamps 6 are installed on the outside of the 160mm steel pipe, which secure the 160-125mm reducing couplings C3 at both ends of the 160mm steel pipe 7 to the 120mm rubber hose 8 and its internal 120-80mm reducing couplings A1 and 180-120mm reducing couplings C4. After clamping, an expansion space is maintained between the 160mm steel pipe 7 and the 120mm rubber hose 8.
[0022] The buffer pipe structure of the pumping system described in this utility model allows for pressure build-up at the smaller end (A) of the reducing pipe joint when material enters the rubber pipe through the discharge port, creating energy storage in the rubber pipe. When pressure fluctuations occur in the pumping system, or when the S valve of the pumping system switches momentarily, causing a pressure loss in the pumped slurry, the rubber pipe contracts, squeezing the material inside the rubber pipe forward, thus achieving a buffering effect.
[0023] The buffer pipe structure of the pumping system described in this utility model significantly reduces the pressure fluctuation amplitude during the pumping process, improving the stability and continuity of pumping; it effectively reduces wear and damage to the pumping system caused by pressure shocks, lowering maintenance costs; and due to more stable pressure, pumping efficiency is improved, and energy consumption is correspondingly reduced.
[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.
Claims
1. A buffer pipe structure for a pumping system, characterized in that: It includes a flexible hose, a rigid tube, a reducing connector A, and a reducing pipe connector B; one end of the flexible hose is sleeved outside the large end of the reducing pipe connector A, the small end of the reducing pipe connector A is connected to the small end of the reducing pipe connector B, and the other end of the flexible hose is connected to the pipe connector; the entire flexible hose is covered by a rigid tube, and an expansion space is maintained between the rigid tube and the flexible hose. The two ends of the rigid tube are tapered and engage with the flexible hose and the pipe connector inside the flexible hose.
2. The buffer pipe structure of the pumping system according to claim 1, characterized in that: The other end of the flexible hose is connected to a reducing pipe joint C, and the flexible hose is sleeved over the small end of the reducing pipe joint C.
3. The buffer pipe structure of the pumping system according to claim 1, characterized in that: The rigid tube has several slots along its circumference at both ends, and pipe clamps are provided on the outside of the rigid tube. The rigid tube is connected to the flexible hose and the pipe joint inside the flexible hose by the pipe clamps.
4. The buffer pipe structure of the pumping system according to claim 1, characterized in that: The rigid tube consists of a central cylindrical section and reducing pipe fittings connected to both ends of the cylindrical section.
5. The buffer pipe structure of the pumping system according to claim 1, characterized in that: The flexible hose is a rubber tube.
6. The buffer pipe structure of the pumping system according to claim 1, characterized in that: The rigid pipe is a steel pipe.
7. The buffer pipe structure of the pumping system according to claim 1, characterized in that: The larger end of the reducing pipe fitting B is connected to the flange.
8. The buffer pipe structure of the pumping system according to any one of claims 1-7, characterized in that: The diameter ratio of the rigid tube to the flexible hose is 4:3.