Flow through electrical heat controller having asymptotic temper

Details Flow through electrical heat controller having asymptotic temper Flow through electrical heat controller having asymptotic temper

1992-03-27

1995-02-14

Paschall, Mark H.

Electric resistance heating devices

Heating devices

Continuous flow type fluid heater

392465, 219485, 219497, 44201, 44202, 4443, H05B 102, F24M 110

Patent

active

053902777

ABSTRACT:
This invention relates to the control of the temperature of heated fluid flow through a so-called single pass electrical heater. Specifically, a controller and accompanying flow circuit including a flow through single pass electrical heater is disclosed which provides for heating of water upon initiation of flow. A two stage control protocol is utilized for routing current under precise control to the heater element. In the first protocol utilized at start up to a control temperature limit slightly below the temperature set point, phase angle of current turn on with zero crossing current turn off control a 220 volt current to the single pass heater element. Once the control temperature is achieved, incremental adjustment of phase angle thereafter occurs with rapid asymptotical approach of the output temperature of the flowing water to a preselected temperature "set point" occurs. Problems relating to thermally inefficient storage of water as well as overshoot of the desired water output temperature are held to a minimum. Preferred use of the heating system in combination with a female hygiene douche is disclosed.

REFERENCES:
patent: 3947899 (1976-04-01), Robinson et al.
patent: 4559441 (1985-12-01), Rudich et al.
patent: 4622704 (1986-11-01), Chung
patent: 4845341 (1989-07-01), Rae
"Instant Hot Water Flows From Cold-Water Pipe", Popular Science, Jul. 1961, pp. 44-46.

Affiliated with

Also associated with

Rating

Flow through electrical heat controller having asymptotic temper does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flow through electrical heat controller having asymptotic temper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow through electrical heat controller having asymptotic temper will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-293937