GB2026661A - Improvements in or Relating to Throughflow Water Heaters - Google Patents
Improvements in or Relating to Throughflow Water Heaters Download PDFInfo
- Publication number
- GB2026661A GB2026661A GB7925143A GB7925143A GB2026661A GB 2026661 A GB2026661 A GB 2026661A GB 7925143 A GB7925143 A GB 7925143A GB 7925143 A GB7925143 A GB 7925143A GB 2026661 A GB2026661 A GB 2026661A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heater
- throughflow
- wheel
- control
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 230000001419 dependent effect Effects 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 229910001369 Brass Inorganic materials 0.000 claims description 2
- 230000004308 accommodation Effects 0.000 claims description 2
- 239000010951 brass Substances 0.000 claims description 2
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2028—Continuous-flow heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/238—Flow rate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
- F24H15/37—Control of heat-generating means in heaters of electric heaters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Control Of Resistance Heating (AREA)
- Flow Control (AREA)
Abstract
In a throughflow water heater, a rotary flow-dependent control device is arranged in the cold water feed or the warm water outlet for the control of the energy supply to a heater device thereof. The control device 5 comprises a wheel 6 driven by the water current and a tachogenerator 7 or frequency generator coupled with the wheel. The magnitude of the control voltage or frequency respectively coming from the tachogenerator or frequency generator serves for the throughflow- dependent switching of a switching device 8, 8' controlling energy supply to the heater device. The magnitude of the control voltage or frequency may also be influenceable by a manually actuable device 9. Heating may be electrical or by gas. <IMAGE>
Description
SPECIFICATION
Improvements in or Relating to Throughflow
Heaters
The present invention relates to a throughflow heater with a flow-dependent control device, arranged in the cold water feed or in the warm water outlet, for the control of the energy supply for the heater device thereof.
In throughflow heaters of this kind, it is known to control the heater performance by means of a flow switch or water switch arranged in the cold water feed or the warm water outlet. Such switches are as a rule so-called pressure difference switches which consist of a diaphragm pressure gauge with a switch pin, actuated by the diaphragm, for a heater switch. The pressure gauge is divided into two diaphragm chambers, ol which each is connected on its own to the cold water feed. A throttle location effecting a difference pressure in the diaphragm gauge is arranged in the cold water feed between both connecting ducts of these diaphragm pressure chambers. Such pressure difference switches are expensive to construct and require space for accommodation in the apparatus housing.Beyone that, these switches consist of brass, whereby they are expensive and contribute substantially to an increase of the weight of the apparatus.
According to the present invention there is provided a throughflow heater comprising a flow dependent device located in either a water inlet o outlet of the heater and comprising a wheel drivable by flowing water, means coupled to the wheel to generate a signal, and switch means responsive to the magnitude of the signal to control the energy supply. The signal generating means may comprise a tachogenerator or a frequency generator.
Embodiments of the invention will now be more particularly described by way of example with reference to the accompanying drawings in which:
Fig. 1 shows a throughflow heater embodying the invention, and
Fig. 2 shows an alternative embodiment of control device.
Referring now to the drawings, a throughflow heater 1, with a conventional heater device for the heating of water during the through flow is indicated merely in outline. At one side thereof a warm water outlet 2 leads to a warm water tap and a cold water feed 3 is supplied from the wate mains 4. A flow-dependent control device 5 for switching or controlling of the energy supply to the heater device is arranged in the cold water feed 3. The control device 5 comprises a wheel 6, which is driven by the flowing water and which is coupled with a tachogenerator 7. On the opening of the warm water tap, the tachogenerator 7 is driven by the wheel 6 to generate a flow
dependent control voltage the magnitude of
which serves for the throughflow-dependent
switching of an electrical or electronic switching
device 8 with contact 8' controlling the heater 5 device.The switching device 8 with its switch
contact 8' is arranged in the current circuit for the
electrical heater device accommodated in the
interior of the throughflow heater 1 and switches
the heater elements on or off by opening or
closing of the contact 8' in dependence on the
quantity of water flowing through the control
device 5. The water throughflow quantity, at
which the electrical heater device Is first actuated
is approximately 6 litres per minute.
A frequency generator 7' cooperating with the
wheel 6 can replace the tachogenerator 7. On the
opening of the warm water tap, the frequency
generator 7' cooperating with the wheel
generates a flow-dependent frequency the
magnitude of which serves for the throughflow
dependent switching of the switching device 8
with contact 8' controlling the heater device. A
mechanical, electrical or electronic device can be
used as switching device. The control frequency
can in that case be generated electrically as well
as also optically.
The control device 5 is suitable not only for an
electrically heated throughflow heater, but also
for throughflow heaters heated by gas. In that
case the gas supply is controlled in dependence
on the water quantity flowing through the control
device 5. Furthermore, devices 9 or 9' which can
be acutated manually can also additionally be
provided for acting on the magnitude of the
control voltage or the frequency.
Claims
1. A throughflow heater comprising a flow
dependent device located in either a water inlet or
outlet of the heater and comprising a wheel
drivable by flowing water, means coupled to the
wheel to generate a signal, and switch means
responsive to the magnitude of the signal to
control the energy supply.
2. A heater as claimed in Claim 1, wherein the
signal generating means comprises a
tachogenerator.
3. A heater as claimed in Claim 1, wherein the
signal generating means comprises a frequency
generator.
4. A heater as claimed in any one of the
preceding claims, further comprising a manually
actuable device to vary the magnitude of the
signal.
5. A throughflow heater substantially as
hereinbefore described with reference to Fig. 1 of
the accompanying drawings.
6. A throughflow heater substantially as
hereinbefore described with reference to Fig. 2 of
the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (6)
1. A throughflow heater comprising a flow
dependent device located in either a water inlet or
outlet of the heater and comprising a wheel
drivable by flowing water, means coupled to the
wheel to generate a signal, and switch means
responsive to the magnitude of the signal to
control the energy supply.
2. A heater as claimed in Claim 1, wherein the
signal generating means comprises a
tachogenerator.
3. A heater as claimed in Claim 1, wherein the
signal generating means comprises a frequency
generator.
4. A heater as claimed in any one of the
preceding claims, further comprising a manually
actuable device to vary the magnitude of the
signal.
5. A throughflow heater substantially as
hereinbefore described with reference to Fig. 1 of
the accompanying drawings.
6. A throughflow heater substantially as
hereinbefore described with reference to Fig. 2 of
the accompanying drawings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2832776A DE2832776B2 (en) | 1978-07-26 | 1978-07-26 | Water heater |
| DE2847018A DE2847018B2 (en) | 1978-10-28 | 1978-10-28 | Water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2026661A true GB2026661A (en) | 1980-02-06 |
| GB2026661B GB2026661B (en) | 1982-08-25 |
Family
ID=25775173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7925143A Expired GB2026661B (en) | 1978-07-26 | 1979-07-19 | Throughflow water heaters |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | ATA503779A (en) |
| CH (1) | CH640338A5 (en) |
| GB (1) | GB2026661B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0121164A2 (en) * | 1983-03-15 | 1984-10-10 | Friedrich Müller | Apparatus to control and/or to monitor the heat supply to a water heater and/or a room heat generator |
| GB2148467A (en) * | 1983-10-18 | 1985-05-30 | Gainsborough Electrical | Water heaters |
| GB2184526A (en) * | 1983-10-18 | 1987-06-24 | Gainsborough Electrical | Water heaters |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3306807A1 (en) * | 1983-02-26 | 1984-08-30 | Roegi Elektro Geräte GmbH & Co KG, 5860 Iserlohn | Pressurised continuous-flow heater for producing hot water |
| DE9112437U1 (en) * | 1991-10-05 | 1991-11-28 | Leiber, Helmut, 4150 Krefeld, De |
-
1979
- 1979-07-19 GB GB7925143A patent/GB2026661B/en not_active Expired
- 1979-07-20 AT AT0503779A patent/ATA503779A/en not_active Application Discontinuation
- 1979-07-25 CH CH689479A patent/CH640338A5/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0121164A2 (en) * | 1983-03-15 | 1984-10-10 | Friedrich Müller | Apparatus to control and/or to monitor the heat supply to a water heater and/or a room heat generator |
| EP0121164A3 (en) * | 1983-03-15 | 1985-11-21 | Friedrich Müller | Apparatus to control and/or to monitor the heat supply to a water heater and/or a room heat generator |
| GB2148467A (en) * | 1983-10-18 | 1985-05-30 | Gainsborough Electrical | Water heaters |
| US4638147A (en) * | 1983-10-18 | 1987-01-20 | Anthony Dytch | Microprocessor controlled through-flow electric water heater |
| GB2184526A (en) * | 1983-10-18 | 1987-06-24 | Gainsborough Electrical | Water heaters |
Also Published As
| Publication number | Publication date |
|---|---|
| CH640338A5 (en) | 1983-12-30 |
| ATA503779A (en) | 1984-02-15 |
| GB2026661B (en) | 1982-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0138171A3 (en) | Water heaters | |
| GB2322278A (en) | Heating element assembly | |
| GB2026661A (en) | Improvements in or Relating to Throughflow Water Heaters | |
| US2641508A (en) | Controls for steam-water cleaning apparatus | |
| US1513087A (en) | Electric heater | |
| AU8110491A (en) | Device for supplying boiling water | |
| ES483944A1 (en) | Boiler. | |
| ES8105847A1 (en) | Damper blade control | |
| SE458558B (en) | FLAMMING SPECIFICATION FOR FIRE-DRIVE HEATERS | |
| GB2012944A (en) | Improvements in and Relating to a Heating Installation and a Valve Therefor | |
| FR2376702A1 (en) | Self contained electrically heated shower head - uses cold water flow to operate flap which closes heater contacts adjusted to required temperature | |
| EP0217211A3 (en) | Coffee machine | |
| FR2456347A1 (en) | TEMPERATURE REGULATING DEVICE FOR ELECTRIC HEATER | |
| DE69704063T2 (en) | Electric household appliance for steam generation | |
| US2577694A (en) | Heating apparatus | |
| GB2014382A (en) | Power supplies for yoghurt making appliances | |
| FI921954A (en) | ELEKTRISK APPARAT FOER INKOPPLING AV RESERVKRAFT. | |
| SU1719803A1 (en) | Electric heater | |
| ES8206815A1 (en) | Warm air generator for domestic use. | |
| GB2160627A (en) | Apparatus for supplying instantaneous hot water for washing purposes | |
| RU2075701C1 (en) | Liquid electrode heater | |
| SU1134840A1 (en) | Automatic control system for electric boiler | |
| SU842351A2 (en) | Apparatus for heating air supplied in steaming room | |
| SU642688A1 (en) | Temperature limiting arrangement | |
| RU2027949C1 (en) | Electrode water boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |