CN109282500A - A kind of water heater of anti-dry - Google Patents
A kind of water heater of anti-dry Download PDFInfo
- Publication number
- CN109282500A CN109282500A CN201710603663.6A CN201710603663A CN109282500A CN 109282500 A CN109282500 A CN 109282500A CN 201710603663 A CN201710603663 A CN 201710603663A CN 109282500 A CN109282500 A CN 109282500A
- Authority
- CN
- China
- Prior art keywords
- switch
- water level
- switches
- dry
- heating tube
- 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.)
- Withdrawn
Links
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
- F24H9/2021—Storage 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)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The present invention relates to a kind of water heaters of anti-dry comprising shell (1), power connection (2), water tank (3), two switches (4), electric heating tube (5), the circuit (6) and warning device (7) for judging two switch states.The water heater of anti-dry of the invention is easy the risk of dry combustion method for the water heater of electricity consumption, not only propose the technology that electric heating tube dry combustion method is avoided with two switches, more importantly propose that oneself is had the method for a failure according to two switches of contradiction early warning of two switch states, the heating tube for thoroughly avoiding the electricity consumption of water heater is easy the risk of bring equipment and damage to person.
Description
Technical field
The present invention relates to the electric-heating technology fields of water, relate in particular to a kind of water heater of anti-dry.
Background technique
From the point of view of safety and service life, the maximum danger of the water heater of electricity consumption is exactly dry combustion method.Dry combustion method is gently then
Damage equipment, it is heavy then may cause and fire and cause personal injury.201120039913. 6 He of Chinese utility model patent
200920313815. X discloses a kind of anti-dry burning device using a switch.In view of a switch can
Can failure risk, Chinese patent 200920119083. 1 disclose a kind of control of temperature and switch protection " second level is anti-
The technology of dry combustion method ".Especially Chinese patent 200720149269. 1, inventor not only analyzes a switch cannot be thorough
Bottom avoids the reason of dry combustion method, also analyzes the common shortcoming with temperature-sensitive element anti-dry, is exactly that reflection is slow, reliability
Difference.In the Chinese patent, the response speed for improving anti-dry burning device and reliable is inventors herein proposed with body expansion type temperature controller
The technology of property.But the response speed no matter how fast body expansion type temperature controller, it is all that can just make after dry combustion method generates high temperature
Protective response action cannot absolutely prevent the generation of dry combustion method phenomenon.
Summary of the invention
The present invention provides a kind of water heaters of anti-dry comprising following several parts:
Shell, power connection, water tank, two switches, electric heating tube, the circuit for judging two switch states and
Warning device；
Wherein shell is isolated from the outside whole device and comes, and externally guarantees the safety of the person and other equipment, it is internally fixed and
Protect the safety of the components of water heater；
Power connection is used to introduce the electric power of water heater need of work, can be connecting terminal or plug；
Water tank stores and holds water that is to be heated and heating；
Two switches include high water level switch and low water level switch, and two switches are installed in water tank
On, perceive and report respectively high water level and low water level two states；
Electric heating tube is mounted in water tank, in the case where two switches are all logical, electric heating tube heating power；
Judge the situation that the circuit of two switch states is logical in the switch of high water level and the switch of low water level is disconnected
It is issued warning signal by warning device down；
Warning device is by high water level switch indication light diode and low water level switch indication light diode two
Light emitting diode composition, can also include power supply status indication light diode.According to the electricity for judging two switch states
The pre-warning signal that road issues, when only low water level switch indication light diode does not work, user and/or maintenance of equipment
Personnel may determine that high water level switch is faulty.
In use, power connection is powered, power supply status indication light diode shines first, indicates that power supply is normal.Only
High water level switch and low water level switch have been detected simultaneously by water, and relay obtains electric actuation, electric heating tube heating power.
It is that high water level switch can't detect water first, relay electric-loss disconnects, and electric heating tube stops adding with the reduction of water level
Heat prevents electric heating tube dry combustion method.If high water level switch fails because of long-term work, water level reduction after do not make after
Electric appliance power loss disconnects, and electric heating tube works on, and the water level in water tank also will continue to decline, until low water level switch detects
To water shortage, relay (43) power loss is disconnected, and electric heating tube (5) stops heating, avoids dry combustion method.At this moment, judge two switches
The circuit of state is logical according to high water level switch and abnormality that low water level switch is disconnected issues warning signal, and alarms
Device notifies the relevant personnel further according to pre-warning signal sound, light and electric signal to overhaul high water level switch, restores two in time
The two-way safeguarding function of a switch, absolutely prevents dry combustion method.
The water heater of anti-dry of the invention is easy the risk of dry combustion method for the water heater of electricity consumption, not only proposes use
Two switches avoid the technology of electric heating tube dry combustion method, it is often more important that propose the contradiction according to two switch states
The method that two switches of early warning have had a failure, the heating tube for thoroughly avoiding the electricity consumption of water heater are easy to bring
Equipment and damage to person risk.The technology is especially suitable for various electrically heated water evaporimeters, and especially industrial and civilian is cold
Condensate evaporator, can to avoid dry combustion method and caused by various accidents.
Detailed description of the invention
The schematic diagram of the water heater of anti-dry Fig. 1 of the invention.
The working principle diagram of Fig. 2 embodiment one
The working principle diagram of Fig. 3 embodiment one, two
1 shell
2 power connections
3 water tanks
4 two switches
41 high water level switches
42 low water level switches
43 relays
5 electric heating tubes
6 judge the circuit of two switch states
7 warning devices
711 high water level signal current-limiting resistances
712 high water level switch indication light diodes
721 low water level signal current-limiting resistances
722 low water level switch indication light diodes
731 power supply signal current-limiting resistances
732 power supply status indication light diodes.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
Embodiment one
The invention proposes a kind of water heaters of anti-dry comprising following several parts:
Shell 1, power connection 2,3, two switches 4 of water tank, electric heating tube 5, the circuit 6 for judging two switch states
With warning device 7;
Wherein shell 1, which is isolated from the outside whole device, comes, and externally guarantees the safety of the person and other equipment, it is internally fixed and
Protect the safety of the components of water heater.
Claims (1)
1. a kind of water heater of anti-dry, it is characterised in that including following several parts:
Shell (1), water tank (3), two switches (4), electric heating tube (5), judges two floats at power connection (2)
The circuit (6) and warning device (7) of switch state;
Wherein, two switches (4) include high water level switch (41) and low water level switch (42), two floats
Switch is installed on water tank (3)；
Electric heating tube (5) is mounted in water tank (3), in the case where two switches (4) are all logical, heating power；
Judge that the circuit (6) of two switch states leads to and the switch of low water level in the switch (41) of high water level
(42) signal is issued to warning device (7) in the case where breaking；
Warning device (7) is by high water level switch indication light diode (712) and low water level switch indication light
(722) two light emitting diode compositions of diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710603663.6A CN109282500A (en) | 2017-07-23 | 2017-07-23 | A kind of water heater of anti-dry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710603663.6A CN109282500A (en) | 2017-07-23 | 2017-07-23 | A kind of water heater of anti-dry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109282500A true CN109282500A (en) | 2019-01-29 |
Family
ID=65185938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710603663.6A Withdrawn CN109282500A (en) | 2017-07-23 | 2017-07-23 | A kind of water heater of anti-dry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109282500A (en) |
-
2017
- 2017-07-23 CN CN201710603663.6A patent/CN109282500A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190129 |