一种超高压柱塞泵用高压缸冷却结构
By incorporating an inlet hole, a through hole, a drain channel, and a check valve structure into the plunger pump, efficient water circulation cooling is achieved, solving the problem of low heat dissipation efficiency of the plunger pump and improving the heat dissipation performance and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHANGSHI PUMP TECHNOLOGY CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing plunger pumps have low heat dissipation efficiency, with heat mainly transferred to the air through thermal conduction, resulting in insufficient heat dissipation efficiency.
A cooling structure for a high-pressure cylinder of an ultra-high pressure plunger pump was designed. By setting water inlet holes, water passage holes, drainage channels and one-way valve structures in the plunger pump body and the high-pressure cylinder, water flow is used to cool the high-pressure cylinder. Cooling holes are set between the cylinder body and the cylinder seat to achieve water circulation cooling.
It improves heat dissipation efficiency, and water acts as a buffer and protector when the high-pressure cylinder bursts, extending the service life of the equipment. It also cools the cylinder body and cylinder seat through water circulation, improving the overall cooling effect.
Smart Images
Figure CN224515376U_ABST
Abstract
Claims
1. A cooling structure for a high-pressure cylinder (7) of an ultrahigh-pressure plunger pump, characterized by: The pump includes a plunger pump body (2) and a plunger pump cover (3); the plunger pump body (2) has a water inlet hole (6) communicating with its inner cavity on its side wall; a hollow high-pressure cylinder (7) is provided inside the plunger pump body (2); a water passage hole (8) is provided on the upper side wall of the high-pressure cylinder (7); the water passage hole (8) communicates the inner cavity of the plunger pump body (2) with the inner cavity of the high-pressure cylinder (7); a plunger shaft (10) is slidably arranged in the high-pressure cylinder (7); and a plunger shaft (10) is provided inside the plunger pump cover (3). A drainage channel (12) is provided with a one-way valve structure (13) between the inlet of the drainage channel (12) and the upper inner cavity of the high-pressure cylinder (7). When the plunger shaft (10) moves downward in the high-pressure cylinder (7), the one-way valve structure (13) controls the water passage (8) to communicate with the inner cavity of the high-pressure cylinder (7). When the plunger shaft (10) moves upward in the high-pressure cylinder (7), the one-way valve structure (13) controls the inner cavity of the high-pressure cylinder (7) to communicate with the drainage channel (12).
2. A cooling structure for a high-pressure cylinder (7) of an ultrahigh-pressure plunger pump according to claim 1, characterized in that: The high-pressure cylinder (7) is provided with a sealing bushing (9), and the plunger shaft (10) is slidably disposed inside the sealing bushing (9). An annular lubrication gap (11) is formed between the sealing bushing (9) and the plunger shaft (10). Under ultra-high pressure, water will pass through the annular lubrication gap (11) to lubricate the relative movement of the sealing bushing (9) and the plunger shaft (10).
3. A cooling structure for a high-pressure cylinder (7) of an ultrahigh-pressure plunger pump according to claim 2, characterized in that: The lower end of the sealing bushing (9) is provided with an outwardly turned shoulder (14). The high-pressure cylinder (7) includes a cylinder seat (71) and a cylinder body (72) which is detachably disposed on the upper end of the cylinder seat (71) by means of a threaded component. An installation chamber (15) with an inverted T-shaped cross section is formed between the cylinder seat (71) and the cylinder body (72). The sealing bushing (9) is installed in the installation chamber (15).
4. A cooling structure for a high-pressure cylinder (7) of an ultrahigh-pressure plunger pump according to claim 3, characterized in that: A reflux hole (18) is provided on the lower side wall of the cylinder seat (71), and the reflux hole (18) connects the inner cavity of the cylinder seat (71) with the inner cavity of the plunger pump body (2).
5. A cooling structure for a high-pressure cylinder (7) of an ultrahigh-pressure plunger pump according to claim 4, characterized in that: A cooling hole (19) is provided on the lower side wall of the cylinder (72). The cooling hole (19) is located below the sealing bushing (9). The cooling hole (19) connects the inner cavity of the cylinder (72) with the inner cavity of the plunger pump body (2).
6. A cooling structure for a high-pressure cylinder (7) of an ultrahigh-pressure plunger pump according to claim 4, characterized by: The upper side wall of the cylinder seat (71) is provided with a second cooling hole (20), which is located above the return hole (18) and connects the inner cavity of the cylinder seat (71) with the inner cavity of the plunger pump body (2).