Pump Internal Circulation Filter Module for Impurity Protection
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Solution Overview
Problem
Existing shielded pumps with internal circulation holes are prone to blockage or contamination due to impurities, leading to wear and reduced performance and life, as they either have large holes that allow impurities to enter or small holes that get blocked by scale deposition.
Innovation Solution
A pump with an internal circulation filtering module comprising a filtering module embedded in the front bearing housing, which filters impurities before they enter the inner cavity, using a rubber elastomer and filtering elements to ensure cleanliness and extend the pump's service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large diameter circulation hole (>2mm) is used, then the circulation volume and cooling efficiency are improved, but impurities and particles can enter the inner cavity causing wear and damage
Solution Approach 1:
A filtering module is introduced as an intermediary component between the circulation hole and the inner cavity. The filter allows fluid to pass through while blocking impurities and particles, thus maintaining high circulation volume without allowing harmful substances to enter the motor shaft inner cavity and cause wear or damage.
2Object-affected harmful factors
If a small diameter circulation hole (<1mm) is used, then impurity intrusion is reduced, but the circulation hole is easily blocked by scale deposition
Solution Approach 1:
The filtering module serves as a sacrificial intermediary that captures scale deposition and impurities before they can block the circulation hole. By placing the filter in the flow path, it protects the circulation system from blockage while maintaining reliable fluid circulation.
3Ease of manufacture
If a large diameter circulation hole is used, then the ease of manufacture is improved, but wear and damage to the motor shaft increases
Solution Approach 1:
The filtering module is positioned as an intermediary barrier that allows the circulation hole to be manufactured with a larger diameter for ease of fabrication and high flow capacity, while simultaneously preventing particles and impurities from reaching the motor shaft and causing wear or damage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The filtering module effectively prevents impurities from entering the inner cavity, ensuring safe operation and extending the service life of the pump by maintaining cleanliness and allowing regular maintenance.
Implementation Method 1
the filtering module is embedded in the second groove part... Before the liquid enters the inner cavity of the shielding sleeve, it will flow through the filtering module, which can filter and intercept the liquid to intercept impurities
Data Source
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AI summary
The present invention belongs to the field of pump technology, and provides a pump with an internal circulation filtering module comprising a front bearing housing and a filtering module, wherein the front bearing housing comprises a first groove part and a second groove part, wherein the bottom of the first groove part is provided with a shaft mounting hole, the motor shaft of the pump is inserted through the shaft mounting hole, the front end of the motor shaft is fitted with a front bearing, and the first groove part is fitted outside the front bearing; the second groove part is connected to the first groove part, and the opening directions of the first groove part and the second groove part are opposite, the opening of the second groove part faces the front end of the motor shaft, and the bottom of the second groove part is provided with a circulation hole; and the filtering module is embedded in the second groove part.