CN201407826Y - Safety protection device used for gas fired boiler - Google Patents
Safety protection device used for gas fired boiler Download PDFInfo
- Publication number
- CN201407826Y CN201407826Y CN2008201427771U CN200820142777U CN201407826Y CN 201407826 Y CN201407826 Y CN 201407826Y CN 2008201427771 U CN2008201427771 U CN 2008201427771U CN 200820142777 U CN200820142777 U CN 200820142777U CN 201407826 Y CN201407826 Y CN 201407826Y
- Authority
- CN
- China
- Prior art keywords
- boiler
- water temperature
- control circuit
- return water
- gas fired
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Combustion (AREA)
Abstract
The utility model relates to a safety protection device used for a gas fired boiler. The device comprises a boiler fuel gas switch and a control circuit connected with a supply water temperature controller, and is characterized in that a return water temperature control circuit is connected in the control circuit in parallel and is formed through a return water temperature controller and a warninglamp which are connected. The device has the beneficial effects that the return water temperature signal is inducted to the control circuit; if the temperature of the return water entering a boiler is high, the return water temperature control circuit enables the boiler to stop, thereby avoiding the danger caused by boiler water vaporization.
Description
Technical field
The utility model belongs to boiler control, relates in particular to a kind of gas fired-boiler safety guard.
Background technology
Full-automatic natural gas gas fired-boiler is to utilize the control to the feedwater limiting temperature to realize its security control.That is, only control the water temperature of boiler output, do not allow it surpass the limiting temperature of setting, and do not control the water temperature that enters boiler.The shortcoming that this control device exists: when environment temperature when very high (as summer), because the hot water circuit circuit is very short, its thermal loss is less, then makes the temperature of backwater-the enter water of boiler can be very high, causes the water in the boiler can produce vaporization.This gas fired-boiler is a full-automatic boiler, unmanned, as this situation takes place will cause security incident.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and a kind of gas fired-boiler safety guard is provided, and the return water temperature signal is introduced control circuit.If it is very high to enter the return water temperature of boiler, temperature control instrument will make boiler shut down, and the water of avoiding taking place in the boiler vaporization takes place and causes danger.
The utility model for achieving the above object; by the following technical solutions: a kind of gas fired-boiler safety guard; comprise the control circuit that the boiler burnt gas switch is connected with the feed temperature controller; it is characterized in that: return water temperature control circuit in parallel in control circuit, the return water temperature controller line is connected and composed by return water temperature controller and alarm lamp.
The beneficial effects of the utility model are: the return water temperature signal is introduced control circuit.If it is very high to enter the return water temperature of boiler, the return water temperature control circuit will make boiler shut down, and has avoided the danger that causes because of the boiler water vaporization.
Description of drawings
Fig. 1 is the connection block diagram of safety guard;
Fig. 2 is the fundamental diagram of control circuit.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in the figure; a kind of gas fired-boiler safety guard; comprise the control circuit that the boiler burnt gas switch is connected with the feed temperature controller, return water temperature control circuit in parallel in control circuit, the return water temperature controller line is connected and composed by return water temperature controller and alarm lamp.In electric cabinet, increased the return water temperature control circuit, utilized idle input port on the existing control instrument simultaneously, the return water temperature signal has been introduced control circuit.If it is very high to enter the temperature of water (backwater) of boiler, temperature control instrument also can be shut down boiler, and the water of avoiding taking place in the boiler is vaporized.
Operation principle: former return water temperature only utilizes the burning of an ALI-1 control point control boiler large and small fire, does not control blowing out.Utilize the AL2 alarm point of return water temperature controller after the transformation, the electric alarm of the closed alarm lamp of AL2-1 point when return water temperature is higher than setting value, the AL2-2 point disconnects and stops boiler operatiopn simultaneously, plays a protective role.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1, a kind of gas fired-boiler safety guard; comprise the control circuit that the boiler burnt gas switch is connected with the feed temperature controller; it is characterized in that: return water temperature control circuit in parallel in control circuit, the return water temperature controller line is connected and composed by return water temperature controller and alarm lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201427771U CN201407826Y (en) | 2008-10-28 | 2008-10-28 | Safety protection device used for gas fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201427771U CN201407826Y (en) | 2008-10-28 | 2008-10-28 | Safety protection device used for gas fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407826Y true CN201407826Y (en) | 2010-02-17 |
Family
ID=41678761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008201427771U Expired - Fee Related CN201407826Y (en) | 2008-10-28 | 2008-10-28 | Safety protection device used for gas fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201407826Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788357A (en) * | 2011-05-20 | 2012-11-21 | 林荣郎 | Cleaning scheduling method of combustor and system thereof |
| CN106371387A (en) * | 2016-10-31 | 2017-02-01 | 广州特种承压设备检测研究院 | Remote intelligent monitoring and alarming prompting system for full-automatic boiler |
-
2008
- 2008-10-28 CN CN2008201427771U patent/CN201407826Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788357A (en) * | 2011-05-20 | 2012-11-21 | 林荣郎 | Cleaning scheduling method of combustor and system thereof |
| CN102788357B (en) * | 2011-05-20 | 2015-03-11 | 林荣郎 | Cleaning scheduling method of combustor and system thereof |
| CN106371387A (en) * | 2016-10-31 | 2017-02-01 | 广州特种承压设备检测研究院 | Remote intelligent monitoring and alarming prompting system for full-automatic boiler |
| CN106371387B (en) * | 2016-10-31 | 2020-06-19 | 广州特种承压设备检测研究院 | Full-automatic boiler remote intelligent monitoring and alarm reminding system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201417094Y (en) | Waste heat recovery power generation flue system for glass production line | |
| CN203010927U (en) | Novel sleeve type gas heating water heater | |
| CN201407826Y (en) | Safety protection device used for gas fired boiler | |
| CN102635847B (en) | Water feeding system for multiple condensing boilers | |
| CN104242111A (en) | Automatic cooling switch cabinet | |
| CN202234750U (en) | Gas steam box control circuit | |
| CN201448193U (en) | Temperature protection device of master control system of wind driven generator | |
| CN204144738U (en) | One is lowered the temperature switch cubicle automatically | |
| CN204517052U (en) | A kind of safety patch board | |
| CN207050243U (en) | A kind of hot-water boiler combustor opens and closes automaton | |
| CN203884579U (en) | Tea baking room | |
| CN203249260U (en) | Exhaust gas waste heat recovery device of heat exchange type hot air stove | |
| CN203797948U (en) | Heat storage type heating device | |
| CN203323352U (en) | Biomass water heater | |
| CN201751748U (en) | Integrated heat collecting and water heating machine unit using solar energy or natural gases | |
| CN203231527U (en) | Energy-saving environment-friendly alcohol-fired boiler | |
| CN205807372U (en) | A kind of automatic fuel gas energy-saving steam generator | |
| CN203298395U (en) | Novel heat radiation heating device | |
| CN201476288U (en) | Microcomputer numerical control boiler | |
| CN201000195Y (en) | Heating fan | |
| CN205979995U (en) | Collective heating water system of air source heating | |
| CN100529578C (en) | Warm air blower | |
| CN203464226U (en) | Steam generator | |
| CN202485224U (en) | Flue type water heater control circuit | |
| CN201407738Y (en) | Porcelain plate gas heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20131028 |