CN216694020U - Waste heat comprehensive utilization system of household gas water heater - Google Patents
Waste heat comprehensive utilization system of household gas water heater Download PDFInfo
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- CN216694020U CN216694020U CN202123308693.5U CN202123308693U CN216694020U CN 216694020 U CN216694020 U CN 216694020U CN 202123308693 U CN202123308693 U CN 202123308693U CN 216694020 U CN216694020 U CN 216694020U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model relates to a comprehensive utilization system of waste heat of a household gas water heater, which comprises a gas water heater and a heating fan, wherein a smoke outlet of the gas water heater is communicated with a smoke pipeline, an outlet of the heating fan is communicated with a heating air pipe, an air preheater and an electric heating module are arranged on the heating air pipe in parallel, the smoke pipeline flows through the air preheater, the heating fan blows air into the heating air pipe, high-temperature smoke in the smoke outlet of the gas water heater heats the air in the heating air pipe through the air preheater, so that the function of a fan heater is realized, when the amount of the generated hot smoke is not enough to heat cold air to the required temperature, the electric heating module can be started to assist, when the gas water heater is not started, the function of the fan heater can be realized through the independent work of the electric heating module, and when the high-temperature smoke waste heat resource discharged by the gas water heater is utilized in a gradient manner, the power consumption of the warm air blower is reduced, and the purposes of energy conservation and emission reduction are achieved.
Description
Technical Field
The utility model relates to the field of gas water heaters, in particular to the field of waste heat utilization of gas water heaters, and particularly relates to a comprehensive waste heat utilization system of a household gas water heater.
Background
With the improvement of living conditions, household gas cookers, gas water heaters, bathroom fan heaters and the like become necessary articles for life. The gas water heater is also called as a gas water heater, and refers to a gas appliance which takes gas as fuel and transfers heat to cold water flowing through a heat exchanger in a combustion heating mode so as to achieve the purpose of preparing hot water. The bathroom warm-air drier uses a fan to blow cold bathroom air through PTC for heating and then blow out the heated air. Domestic household appliances mostly use gas and electricity, and in order to respond to national energy conservation and emission reduction calls and develop a high-efficiency energy-saving system, the expenditure for users is simply saved, and the requirement for realizing the sustainable development of national economy is improved.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a comprehensive utilization system for waste heat of a household gas water heater, which reduces the power consumption of a warm air blower while gradient utilization of high-temperature flue gas waste heat resources discharged by the gas water heater, and realizes the purposes of energy conservation and emission reduction.
The utility model provides a comprehensive utilization system of waste heat of a household gas water heater, which is realized by the following technical scheme and comprises the gas water heater and a heating fan, wherein a smoke outlet of the gas water heater is communicated with a flue gas pipeline, an outlet of the heating fan is communicated with a heating air pipe, an air preheater and an electric heating module are connected on the heating air pipe in parallel, and the flue gas pipeline flows through the air preheater.
During heating fan in this scheme blows into the heating tuber pipe with wind, the high temperature flue gas in the gas heater exhaust port heats the air in the heating tuber pipe through the air preheater to realize the function of electric fan heater, when the hot flue gas volume that produces is not enough with cold air heating to required temperature, can open electric heating module and assist, when gas heater did not open, the function of electric heating module realization electric fan heater of accessible work alone.
As optimization, a thermocouple is arranged at the outlet of the electric heating air pipe, an electric regulating valve b is arranged at the air inlet of the air preheater, and an electric regulating valve c is arranged at the air inlet of the electric heating module. The thermocouple in this scheme is used for detecting outlet temperature to interlock with electrical control valve b and electrical control valve c, control electrical control valve b and electrical control valve c's switch and flow.
Preferably, an electric regulating valve a is arranged on a smoke pipeline of the smoke inlet of the air preheater. The electric control valve a in the scheme can close the flue gas pipeline when the gas water heater does not work.
Preferably, the electric heating module adopts PTC heating sheets. The electric heating module in the scheme adopts the PTC heating sheet, and has the advantages of small thermal resistance, high heat exchange efficiency, no open fire and high safety.
Preferably, the smoke outlet of the gas water heater is provided with a flowmeter. The flowmeter in the scheme is used for detecting the flow of the smoke outlet.
Preferably, the air outlet of the air preheater is provided with a gate valve a, and the air outlet of the electric heating module is provided with a gate valve b. The gate valve a and the gate valve b are arranged in the scheme and used for manually closing the pipeline.
The utility model has the beneficial effects that:
high energy efficiency: the high-temperature flue gas exhausted by the original gas water heater is fully utilized. Specifically, after the original gas water heater heats domestic water, the temperature of the discharged flue gas is about 80-100 ℃, in the technical scheme provided by the utility model, the hot flue gas with the temperature of about 80-100 ℃ per unit volume can heat normal-temperature air to about 50 ℃, the hot flue gas is discharged after being cooled to 60 ℃, and the utilization rate of the flue gas reaches 50%.
The economy is strong: the power consumption of the bathroom warm air blower is reduced, the power is saved, and the bathroom warm air blower is more economical. In the technical scheme provided by the utility model, the heat source for heating cold air is hot flue gas discharged by a gas water heater, and extra power consumption is not needed.
The stability is high: the air preheater and the PTC heating module are combined to ensure that the temperature of the air outlet is about 55 ℃ which is comfortable for human bodies.
Drawings
FIG. 1 is a schematic structural view of the present invention;
shown in the figure:
1. the gas water heater comprises a gas water heater, 2, a flowmeter, 3, electric regulating valves a and 4, an air preheater, 5, a heating fan, 6, electric regulating valves b and 7, gate valves a and 8, electric regulating valves c and 9, an electric heating module, 10, gate valves b and 11, a thermocouple, 12, a flue gas pipeline, 13, a heating air pipe, 14, an air preheater air pipe, 15 and an electric heating air pipe.
Detailed Description
In order to clearly explain the technical features of the present solution, the present solution is explained by the following detailed description.
As shown in fig. 1, the comprehensive waste heat utilization system for a household gas water heater of the present invention comprises a gas water heater 1 and a heating fan 5, wherein an outlet of the heating fan 5 is communicated with a heating air pipe 13, an air preheater 4 and an electric heating module 9 are connected in parallel on the heating air pipe 13, as shown in fig. 1, an air preheater air pipe 14 and an electric heating air pipe 15 are connected in parallel on the heating air pipe 13, the air preheater 4 is arranged on the air preheater air pipe 14, and the electric heating module 9 is arranged on the electric heating air pipe 15.
The electric heating module 9 adopts PTC heating sheets, and air flowing through the electric heating module 9 is heated through the PTC heating sheets. The air outlet of the electric heating module 9 is provided with a gate valve b10, and a gate valve b10 is arranged on the electric heating air duct 15.
The air in the air preheater 4, also called as an air preheater, flows through the heated side of the air preheater in the air preheater duct 14, and the air in the air preheater duct 14 is heated by the air preheater, and the air outlet of the air preheater 4 is provided with a gate valve a7, and the gate valve a7 is arranged on the air preheater duct 14.
The smoke outlet of the gas water heater 1 is communicated with a smoke pipeline 12, and the smoke pipeline 12 flows through the air preheater 4. The smoke flows through the heat supply side of the air preheater 4, and an electric regulating valve a3 is arranged on the smoke pipeline 12 of the smoke inlet of the air preheater 4.
And a smoke outlet of the gas water heater 1 is provided with a flowmeter 2. The flow meter 2 is mounted on the flue gas duct 12.
And a thermocouple 11 is arranged at the outlet of the electric heating air pipe, and the thermocouple 11 is used for detecting the air temperature at the outlet.
An electric control valve b6 is installed at the air inlet of the air preheater 4, an electric control valve b6 is installed on an air pipe 14 of the air preheater, an electric control valve c8 is installed at the air inlet of the electric heating module 9, and an electric control valve c8 is installed on an electric heating air pipe 15.
The thermocouple 11 is interlocked with the flow meter 2, the electric control valve a3, the electric control valve b6, and the electric control valve c8, so that the operating state is controlled by the temperature of the thermocouple 11 and the flow rate of the flow meter 2.
The use method of the utility model comprises the following steps:
when the air heater is in normal operation, hot smoke generated by the gas water heater 1 enters the air preheater 4 through the smoke pipeline 12, cold air is extracted by the heating fan 5 and enters the air preheater 4, and in the air preheater 4, the cold air is heated to about 55 ℃ by the hot smoke and is blown into the shower room, so that the heating purpose is achieved.
When the amount of the generated hot smoke is not enough to heat the cold air to the required temperature, the electric control valve c8 corresponding to the electric heating module 9 is automatically opened according to the signal of the thermocouple 11 at the outlet of the warm air blower, so as to ensure that the temperature of the air at the outlet of the warm air blower reaches the required temperature.
When the shower room is not used for bathing, but other heating requirements are met in winter, namely no hot smoke exists, the signal of the flow meter 2 on the hot smoke at the inlet of the air preheater 4 is 0, the electric control valve a3 and the electric control valve b6 are automatically closed, the electric control valve c8 is opened, and the electric heating module 9 is put into operation.
Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a domestic gas heater waste heat comprehensive utilization system which characterized in that: the heating device comprises a gas water heater (1) and a heating fan (5), wherein a smoke outlet of the gas water heater (1) is communicated with a smoke pipeline (12), an outlet of the heating fan (5) is communicated with a heating air pipe (13), an air preheater (4) and an electric heating module (9) are arranged on the heating air pipe (13) in parallel, and the smoke pipeline (12) flows through the air preheater (4).
2. The comprehensive waste heat utilization system of a household gas water heater as claimed in claim 1, characterized in that: and a thermocouple (11) is installed at the outlet of the heating air pipe, an electric regulating valve b (6) is installed at the air inlet of the air preheater (4), and an electric regulating valve c (8) is installed at the air inlet of the electric heating module (9).
3. The comprehensive utilization system of the waste heat of the household gas water heater as claimed in claim 1, wherein: an electric control valve a (3) is arranged on a smoke pipeline (12) of the smoke inlet of the air preheater (4).
4. The comprehensive waste heat utilization system of a household gas water heater as claimed in claim 1, characterized in that: the electric heating module (9) adopts PTC heating sheets.
5. The comprehensive utilization system of the waste heat of the household gas water heater as claimed in claim 1, wherein: and a smoke outlet of the gas water heater (1) is provided with a flowmeter (2).
6. The comprehensive utilization system of the waste heat of the household gas water heater as claimed in claim 1, wherein: and a gate valve a (7) is installed at the air outlet of the air preheater (4), and a gate valve b (10) is installed at the air outlet of the electric heating module (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123308693.5U CN216694020U (en) | 2021-12-27 | 2021-12-27 | Waste heat comprehensive utilization system of household gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123308693.5U CN216694020U (en) | 2021-12-27 | 2021-12-27 | Waste heat comprehensive utilization system of household gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216694020U true CN216694020U (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123308693.5U Active CN216694020U (en) | 2021-12-27 | 2021-12-27 | Waste heat comprehensive utilization system of household gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216694020U (en) |
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2021
- 2021-12-27 CN CN202123308693.5U patent/CN216694020U/en active Active
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