Gas Pressure Regulator Setting Device with Ball Screw
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Solution Overview
Problem
Existing gas pressure regulator setting devices are less precise in low pressure systems, waste gas during adjustments, and are complex, making them unsuitable for domestic applications and inefficient in terms of electricity consumption.
Innovation Solution
A setting device for a gas pressure regulator that uses an electric motor with a recirculating ball screw and roller bearing to adjust the pilot device's setting without solenoid valves, allowing precise control with reduced power consumption and no gas discharge, and is adaptable to various pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If solenoid valves are used to control pressure in the tank, then pressure regulation is achieved, but gas is discharged into the atmosphere causing waste
Solution Approach 1:
The invention removes the solenoid valves and tank from the system entirely, extracting the harmful gas discharge function while preserving pressure regulation through an alternative mechanical adjustment mechanism involving a setting device and spring-loaded pilot device
Solution Approach 2:
The invention replaces the pneumatic control system (solenoid valves controlling gas pressure in a tank) with a direct mechanical adjustment system where an electric motor drives a screw mechanism to physically adjust the pilot device setting, eliminating the need for gas discharge
2Ease of operation
If a tank with solenoid valves is used for setting control, then pressure regulation is achieved, but the device complexity increases
Solution Approach 1:
The invention extracts and removes the complex tank and dual solenoid valve subsystem, replacing it with a compact setting device that integrates the adjustment mechanism directly into the pilot device assembly
Solution Approach 2:
The invention merges the setting adjustment mechanism with the pilot device structure, combining previously separate components (setting device, pilot device, and pressure regulation elements) into an integrated unit that reduces overall system complexity
3Manufacturing precision
If electric motor with recirculating ball screw is used, then positioning precision is improved, but device complexity increases
Solution Approach 1:
The invention replaces less precise manual or simple mechanical adjustment mechanisms with an electric motor-driven recirculating ball screw system, which provides high positioning precision through controlled motor rotation and ball screw translation
Solution Approach 2:
The invention changes the control parameter from manual positioning to electrically-controlled motor rotation, where precise control of rotational speed, direction, and duration translates to precise linear positioning of the setting device through the ball screw mechanism
4Adaptability or versatility
If tank pressure is reduced for low pressure systems, then adaptability to domestic applications is improved, but solenoid valve precision deteriorates
Solution Approach 1:
The invention replaces the solenoid valve-based pneumatic control system with a direct mechanical adjustment system that is not dependent on tank pressure levels, allowing precise setting adjustment in low pressure domestic applications where solenoid valve precision deteriorates
Solution Approach 2:
The invention changes the control approach from pneumatic pressure control (which loses precision at low pressures) to direct mechanical position control through the electric motor and ball screw, maintaining precision across different pressure ranges including low pressure domestic systems
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 solution provides precise control of gas pressure in low pressure systems with reduced electricity consumption and no gas waste, making it suitable for domestic applications and easily adaptable to different pressures, while being simpler and interchangeable with existing systems.
Implementation Method 1
an electric motor 11 with a recirculating ball screw 7 and roller bearing 10 to adjust the pilot device's setting
Implementation Method 2
an electric motor 11 with a recirculating ball screw 7 and roller bearing 10 to adjust the pilot device's setting
Data Source
AI summary
Setting device for a pressure regulator includes a tubular casing developing according to a longitudinal axis (X) and in which there are a movable body, a sliding setting plate and a spring interposed between them; an adjusting unit suited to adjust the position of the setting plate and having a first rotating shaft connected to the setting plate through a screw mechanism which converts opposite rotations of the first shaft into corresponding opposite movements of the setting plate along the longitudinal axis (X), and an electric motor powered by a control device and provided with a second shaft constrained to the first shaft. The control device includes two different input lines to receive corresponding electric signals and an output line to supply power to the electric motor and is configured to transmit an electric pulse emitted by any of the input lines to the output line with polarity depending on the input line which emitted the electric pulse.