Jet Valve Spool With Axial Nozzle Adjustment for Water Mixing
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Solution Overview
Problem
Existing solar water heater systems face challenges in adjusting the mixing ratio of cold and hot water effectively, leading to unsatisfactory jetting pressure and temperature control, making it inconvenient for users to achieve comfortable bathing temperatures.
Innovation Solution
A jet valve spool design where the nozzle is movable in the axial direction, allowing simultaneous adjustment of cold water and hot water flow rates, while maintaining consistent cold water pressure, and featuring a rotatable member to convert rotational movement into axial movement, with a supporting member to enhance jetting efficiency and prevent needle deviation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the valve spool for cold water is turned down to adjust the mixing ratio, then the proportion of cold water is reduced, but the jetting speed of working liquid is reduced and water pressure in the nozzle is reduced, making the sucking effect of hot water unsatisfactory
Solution Approach 1:
The invention separates the control functions into two independent components: a valve spool for controlling cold water flow rate and a needle for controlling hot water suction. This allows independent adjustment of cold water proportion without affecting the jetting pressure required for hot water suction, resolving the contradiction between reducing cold water proportion and maintaining nozzle pressure.
2Quantity of substance
If a telescopic needle is used inside the nozzle to adjust cold water flow rate, then the jetting flow rate of cold water is adjustable, but the flow rate of hot water is unadjustable, making the water outflow temperature unable to be close or equal to cold water temperature
Solution Approach 1:
The invention makes the needle serve dual functions: controlling the jetting flow rate of cold water and controlling the suction flow rate of hot water. By moving the needle axially, users can simultaneously adjust both cold water and hot water flow rates, enabling the water outflow temperature to be close or equal to cold water temperature, thus achieving multi-functionality.
3Quantity of substance
If two handles are needed to adjust the nozzle and needle respectively, then the flow rates can be adjusted, but the operation becomes inconvenient requiring repeated and alternating adjustment
Solution Approach 1:
The invention combines the adjustment functions of two separate handles into a single integrated control mechanism. The valve spool and needle are linked such that rotating the valve handle simultaneously adjusts both the cold water flow rate and hot water suction rate, eliminating the need for repeated alternating adjustments and significantly improving ease of operation.
4Quantity of substance
If the nozzle is rotated to adjust hot water flow rate, then the flow rate is adjustable, but the needle valve moves along with the nozzle and becomes relatively stationary to the cold water outlet, making the jetting effect substantively constant
Solution Approach 1:
The invention separates the control functions into independent components: the valve spool controls cold water flow rate while the needle independently controls hot water suction. This segmentation allows the needle to move axially relative to the cold water outlet to adjust jetting effect, while the valve spool rotation adjusts hot water flow rate, enabling independent control of both parameters without interference.
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
This design enables convenient and effective adjustment of water flow rates and temperatures, maintaining jetting pressure and enhancing the jetting effect, allowing users to achieve desired bathing temperatures without wasting hot water.
Implementation Method 1
a rotatable member rotatably disposed on the spool housing in a sealing manner and forming an axial movable adaptation with the nozzle via an axial movement adjusting means, so as to allow a rotating movement of the rotatable member to be converted to an axial movement of the nozzle
Implementation Method 2
In the state of jet, the sucking effect of hot water depends on the pressure of the cold water
Implementation Method 3
the sucking effect of hot water depends on the pressure of the cold water
Data Source
AI summary
A jet valve spool includes: a spool housing on which is provided with a cold water port and a hot water port; a spray nozzle arranged in the valve core shell and having a cold water inlet of the spray nozzle and a cold water outlet of the spray nozzle, with the cold water inlet and the cold water outlet being in communication with a cold water channel of a valve by means of the cold water opening; and a spray needle which can be assembled inside the spray nozzle, can form a cold water inflow space with an inner chamber of the spray nozzle, and form a cold water jetting outlet with the cold water outlet of the spray nozzle, wherein the position of the spray needle in the axial direction of the jet valve core is fixed, and the position of the spray nozzle in the axial direction of the jet valve core is adjustable.