CN212569558U - Temperature monitoring system for electric wall hanging furnace - Google Patents
Temperature monitoring system for electric wall hanging furnace Download PDFInfo
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- CN212569558U CN212569558U CN202021921487.4U CN202021921487U CN212569558U CN 212569558 U CN212569558 U CN 212569558U CN 202021921487 U CN202021921487 U CN 202021921487U CN 212569558 U CN212569558 U CN 212569558U
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Abstract
The utility model relates to a domestic appliance equipment field, it discloses an electricity hanging stove temperature monitoring system, solves the problem that stability, reliability that traditional electricity hanging stove exists are low in the aspect of the temperature monitoring. The system comprises a water tank, a heating body and a control mainboard, wherein the control mainboard is provided with a control module, a power module and a relay, the power module is connected with the heating body through the relay, the control end of the relay is connected with the control module, and the heating body is used for heating the water tank; further comprising: a current transformer and a temperature control all-pole switch; the output end of the current transformer is connected with the control module and used for detecting the working current of the system, and when the working current exceeds a set threshold value, the output of the power supply module is cut off; the output end of the temperature control all-pole switch is connected with the control module and used for detecting the temperature of the water tank of the electric wall-mounted boiler and cutting off the output of the power supply module when the preset temperature is reached. The utility model is suitable for an electricity wall-hung stove.
Description
Technical Field
The utility model relates to a domestic appliance equipment field, concretely relates to electric wall hanging stove temperature monitoring system.
Background
At present, environmental protection is more and more important, and in the process of popularizing the policy of changing coal into electricity in China, the heat supply of an electric boiler instead of the heat supply of a traditional coal boiler is also a great opportunity. The traditional electric wall-mounted boiler is connected with a system through an overtemperature switch, so that the on-off of a power supply of a water temperature control heating body is monitored. However, the over-temperature switch also has a failure condition, and once the monitoring data of the over-temperature switch is abnormal, the continuous heating of the boiler can cause great potential safety hazard. In addition, because temperature control is realized through the continuous break-make of relay of control heating body circuit switching, the relay contact can produce electric arc in the twinkling of an eye at heavy current closure, disconnection to generate heat at the contact point, long-time operation probably fuses the contact together, makes the relay contact be in the closure state always, thereby makes the heating body work always, can cause very big potential safety hazard equally.
Therefore, the traditional electric wall-mounted boiler has the problems of low stability and reliability in the aspect of temperature monitoring.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides an electricity hanging stove temperature monitoring system, the problem that stability, reliability are low that traditional electricity hanging stove exists in the aspect of temperature monitoring is solved.
The utility model provides a technical scheme that above-mentioned technical problem adopted is:
a temperature monitoring system of an electric fireplace comprises a water tank, a heating body and a control mainboard, wherein the control mainboard is provided with a control module, a power module and a relay, the power module is connected with the heating body through the relay, the control end of the relay is connected with the control module, and the heating body is used for heating the water tank;
the system further comprises: a current transformer and a temperature control all-pole switch; the output end of the current transformer is connected with the control module and used for detecting the working current of the system, and when the working current exceeds a set threshold value, the output of the power supply module is cut off; the output end of the temperature control all-pole switch is connected with the control module and used for detecting the temperature of the water tank of the electric wall-mounted boiler and cutting off the output of the power supply module when the preset temperature is reached.
As further optimization, the heating body adopts a nanocrystal heating pipe.
As a further optimization, an automatic exhaust valve is arranged on a water tank of the electric wall-hanging stove.
The utility model has the advantages that:
the working current of the system is detected through the current transformer, when the working current exceeds a threshold value, the relay is judged to have a fault, and the output of the power supply module is forcibly cut off at the moment, so that a larger safety accident is avoided; in addition, the temperature of the water tank is monitored through the temperature control all-pole switch, when the temperature of the water tank reaches a preset temperature, the output of the power supply module is cut off, and the temperature control all-pole switch can be used as a supplement of the overtemperature switch, so that dual temperature control protection is provided; therefore, compared with the traditional technology, the temperature monitoring scheme of the utility model has higher stability and reliability; in addition, the nanocrystal heating pipe with better heat efficiency is adopted for heating, the heating efficiency is higher, and the automatic pressure relief can be realized automatically through the automatic exhaust valve when the pressure of the boiler is too high, so that the use safety of the boiler is guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of an electric wall-mounted boiler in an embodiment;
the drawing is marked with 1 as a shell component, 2 as a wire holder, 3 as a temperature control all-pole switch, 4 as an automatic exhaust valve, 5 as an over-temperature switch, 6 as a water tank, 7 as a nanocrystal heating body, 8 as a water outlet pipe, 9 as an exhaust pipe, 10 as a water replenishing pipe, 11 as a water return pipe, 12 as a shielding water pump, 13 as a relay, 14 as a control mainboard and 15 as a current transformer.
Detailed Description
The utility model aims at providing an electricity hanging stove temperature monitoring system solves the problem that stability, reliability are low that traditional electricity hanging stove exists in the aspect of the temperature monitoring. In particular, the utility model provides an electric fireplace temperature monitoring system, including water tank, heating member and control mainboard, be equipped with control module, power module and relay on the control mainboard, power module passes through the relay and connects the heating member, the control end of relay connects control module, the heating member is used for heating for the water tank; the system further comprises: a current transformer and a temperature control all-pole switch; the output end of the current transformer is connected with the control module and used for detecting the working current of the system, and when the working current exceeds a set threshold value, the output of the power supply module is cut off; the output end of the temperature control all-pole switch is connected with the control module and used for detecting the temperature of the water tank of the electric wall-mounted boiler and cutting off the output of the power supply module when the preset temperature is reached.
Example (b):
taking the above temperature monitoring system applied to an electric wall-mounted furnace as an example, as shown in fig. 1, the newly designed electric wall-mounted furnace includes a housing assembly 1, a wire holder 2, a temperature-controlled all-pole switch 3, an automatic exhaust valve 4, an over-temperature switch 5, a water tank 6, a nanocrystal heating body 7, a water outlet pipe 8, an exhaust pipe 9, a water replenishing pipe 10, a water return pipe 11, a shielded water pump 12, a relay 13, a control main board 14, and a current transformer 15.
Wherein the internal circuit of electricity hanging stove is put through with external power source through connection terminal 2, and shielding formula water pump 12 fills for the water tank and for hydrologic cycle provides the power supply, and power mainboard 14 starts nanocrystal heating body 7 afterwards, for the water heating in the water tank.
Because the heating body 7 has larger power, the heating body needs to be powered on or off frequently according to the water temperature condition. The relay for controlling the circuit of the heating body 7 to be opened and closed is continuously switched on and off, the relay contact can generate electric arc at the moment of closing and opening of large current and generate heat at the contact point, the contacts can be fused together after long-time operation, the relay contact is always in a closed state, and therefore the heating body works all the time. And after the water pump stops working, the water pump can not circulate the high-temperature medium, and the temperature of the medium in the box body continuously rises, so that potential safety hazards are caused. The general electric wall-mounted boiler is connected with the system through an overtemperature switch 5, and the on-off of a water temperature control circuit is monitored. However, the temperature switch also has failure, and once the monitoring data of the temperature switch is abnormal, the continuous heating of the boiler can cause great potential safety hazard.
Therefore, in the present embodiment, the temperature-controlled all-pole switch 3 is added to the electric fireplace, and when the over-temperature switch 5 fails, the power supply of the heating body 7 can be forcibly cut off.
The temperature control all-pole switch 3 is also possible to fail, the current transformer 15 is added to the electric wall-mounted furnace to detect the current in the loop, and when the equipment is in a heat release stage, the detected current is small (a few tenths of amperes) under normal conditions; if the detected current is several amperes (heating body working current), it can be judged that the contact fusion of the relay in the system fails, so that the system is forcibly powered off, and accidents are avoided.
The current transformer 15 can also be used for judging whether a heating body in the system is damaged. When the heating body is completely put into operation, if the detected current is obviously smaller than the theoretical current value (the current value converted by the whole operation of the heating body), the system can judge that the heating body is damaged in the system, thereby giving out a fault prompt.
An automatic exhaust valve is arranged on the water tank 6 to provide mechanical protection for the water tank.
The electric wall-hung furnace based on the design has the advantages of good stability, high reliability, good heating efficiency and the like.
Claims (3)
1. A temperature monitoring system of an electric fireplace comprises a water tank, a heating body and a control mainboard, wherein the control mainboard is provided with a control module, a power module and a relay, the power module is connected with the heating body through the relay, the control end of the relay is connected with the control module, and the heating body is used for heating the water tank;
characterized in that, the system also includes: a current transformer and a temperature control all-pole switch; the output end of the current transformer is connected with the control module and used for detecting the working current of the system, and when the working current exceeds a set threshold value, the output of the power supply module is cut off; the output end of the temperature control all-pole switch is connected with the control module and used for detecting the temperature of the water tank of the electric wall-mounted boiler and cutting off the output of the power supply module when the preset temperature is reached.
2. The system for monitoring the temperature of an electric fireplace of claim 1,
the heating body adopts a nanocrystal heating pipe.
3. An electric fireplace temperature monitoring system as claimed in claim 1 or 2,
and an automatic exhaust valve is arranged on the water tank of the electric wall-mounted boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021921487.4U CN212569558U (en) | 2020-09-04 | 2020-09-04 | Temperature monitoring system for electric wall hanging furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021921487.4U CN212569558U (en) | 2020-09-04 | 2020-09-04 | Temperature monitoring system for electric wall hanging furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212569558U true CN212569558U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021921487.4U Active CN212569558U (en) | 2020-09-04 | 2020-09-04 | Temperature monitoring system for electric wall hanging furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212569558U (en) |
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2020
- 2020-09-04 CN CN202021921487.4U patent/CN212569558U/en active Active
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