CN115682434A - Gas water heater based on pulse combustion technology - Google Patents

Abstract

The invention provides a gas water heater based on pulse combustion technology, and relates to the technical field of household appliances. This gas water heater includes an enclosure and a pulsating burner, control center inside the enclosure. A water inlet pipe, a water outlet pipe, an air inlet pipe and a smoke exhaust pipe extending to the outside are arranged on the casing. The pulsating burner is divided into combustion, heat exchange and smoke exhaust parts; in the combustion part, the mixing chamber mixes air and gas, and the ignition device ignites after the control center sends out instructions, and the mixed gas burns in the combustion chamber to generate hot smoke and transfer it to Heat exchange part; in the heat exchange part, the tail pipe is used as the heat exchange surface, and the hot smoke flows through the tail pipe to exchange heat with the cold water in the water jacket; in the smoke exhaust part, the smoke flows through the decoupling chamber and is discharged discharge. The invention applies the pulse combustion technology to the gas water heater, which can increase the heat transfer coefficient, save the heat transfer area and improve the combustion efficiency.

Description

A Gas Water Heater Based on Pulse Combustion Technology

technical field

The invention relates to the technical field of household appliances, in particular to a gas water heater based on pulse combustion technology.

Background technique

Gas water heaters are one of the most commonly used types of water heaters in people's lives. Gas water heaters include a shell and a heating device inside the shell; water inlets and water outlets are arranged on the shell, and cold water enters the shell from the water inlet and is heated by the heating device. hot water output.

Existing gas water heaters use traditional combustion technology, which has the following disadvantages: due to its limited combustion intensity, sometimes there will be insufficient heat production; when using a heat exchanger for heat exchange, the heat transfer coefficient is small, and a larger heat exchange is required Area, increase the size of the water heater and increase the cost; in the case of low excess air coefficient, the combustion efficiency is not high, and there will be more heat loss.

Contents of the invention

The technical problem to be solved by the present invention is to provide a gas water heater based on the pulsation combustion technology, which can increase the heat transfer coefficient, save the heat transfer area, and improve the combustion efficiency by using the pulsation burner as the heating device. .

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

A gas water heater based on pulsating combustion technology, including a shell, a pulsating burner inside the shell, and a control center;

There are extended water inlet pipes, water outlet pipes, gas inlet pipes, air inlet pipes and smoke exhaust pipes on the shell;

The water inlet pipe is connected to the user's household water supply pipe to access cold water; the outlet pipe is connected to the household water pipe to output hot water; the gas inlet pipe is connected to the household gas pipeline to connect combustible gas; the air inlet pipe is connected to the air to access air; the smoke exhaust pipe is used to discharge The flue gas produced by the pulsating burner; the control center is used to regulate the entire water heater;

The pulsation burner includes a combustion part, a heat exchange part and a smoke exhaust part; the combustion part of the pulsation burner is used to mix combustible gas and air; the heat exchange part of the pulsation burner is used to heat the inlet pipe connection The incoming cold water; the smoke exhaust part is used to discharge the flue gas generated by the pulsating burner out of the gas water heater through the exhaust pipe.

Further, the combustion part of the pulse burner includes an ignition device, a mixing chamber, and a combustion chamber; the ignition device is used for electric spark ignition; the mixing chamber is used for fully mixing air and gas; the combustion chamber is used for pulse combustion;

After the control center receives the instruction, the gas enters the mixing chamber through the gas inlet pipe, and the air enters the mixing chamber through the air inlet pipe. The gas and air are fully mixed, ignited by the ignition device, and burn in the combustion chamber.

Further, the heat exchange part of the pulsating burner has a water inlet, a water outlet, a tailpipe and a water jacket; the front end of the tailpipe is connected to the combustion chamber, and the surface of the tailpipe is provided with a water jacket; The water jacket is introduced into the water jacket; the water outlet is connected to the water outlet pipe on the shell to discharge the hot water out of the water jacket; the cold water enters the water jacket outside the tail pipe from the water inlet, and the surface of the tail pipe is used as a heat exchange surface to heat the cold water in the water jacket, heating The final hot water is discharged from the water jacket through the water outlet.

Further, the smoke exhaust part of the pulsating burner includes a decoupling chamber and a smoke outlet; the inlet of the decoupling chamber is connected to the end of the tailpipe, and the outlet is connected to the smoke outlet; the decoupling chamber is used to reduce the noise generated by the pulsation combustion oscillation; The smoke outlet is connected to the smoke exhaust pipe on the shell for exhausting the smoke.

Further, the air intake pipe is provided with an air pump for pressing air into the pulsating burner.

Further, the tail pipe is helical.

The beneficial effects produced by adopting the above technical solution are: the gas water heater based on the pulsation combustion technology provided by the present invention can increase the heat transfer coefficient, save the heat transfer area, and improve the combustion efficiency. Setting a decoupling chamber at the end of the tailpipe can effectively reduce noise.

Description of drawings

Fig. 1 is a schematic structural diagram of a gas water heater based on pulse combustion technology provided by an embodiment of the present invention;

Fig. 2 is the schematic structural diagram of the combustion part of the pulse burner provided by the embodiment of the present invention;

Fig. 3 is a schematic structural diagram of the heating part of the pulse burner provided by the embodiment of the present invention.

In the figure: 1. Water inlet pipe; 2. Water outlet pipe; 3. Gas inlet pipe; 4. Air inlet pipe; 5. Smoke exhaust pipe; 6. Combustion part of pulsating burner; ;8, air pump; 9, control center; 11, ignition device; 12, mixing chamber; 13, combustion chamber; 21, smoke outlet; 22, water inlet; 23, water outlet; 24, tailpipe; 25, to coupling room.

Detailed ways

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

As shown in FIG. 1 , this embodiment provides a gas water heater based on pulse combustion technology, including a shell, a pulse burner inside the shell, and a control center 9 .

The casing is provided with extended water inlet pipe 1, water outlet pipe 2, gas inlet pipe 3, air inlet pipe 4 and smoke exhaust pipe 5. The water inlet pipe 1 is connected to the user's household water supply pipe to access cold water; the outlet pipe 2 is connected to the household water pipe to output hot water; the gas inlet pipe 3 is connected to the household gas pipeline to connect combustible gas; the air inlet pipe 4 is connected to the air to access the air; The smoke pipe 5 is used to discharge the flue gas produced by the pulse burner. The air intake pipe 4 is provided with an air pump 8 for pressing air into the pulsating burner.

The control center 9 is used for regulating and controlling the whole water heater.

The pulse burner includes a combustion part 6 , a heat exchange and smoke exhaust part 7 . The combustion, heat exchange and smoke exhaust parts are all sealed; the pulsating burner combustion part 6 is used to pre-mix the combustible gas and air before combustion; the pulsating burner heat exchange and smoke exhaust part 7 is used to heat the hot flue gas generated by the combustion part The cold water connected to the water inlet pipe 1 discharges the smoke from the smoke exhaust pipe 5.

During specific implementation, cold water enters from the water inlet pipe 1, and gas and air enter the burner from the gas inlet pipe 3, the air inlet pipe 4, and the air pump 8 respectively. After the control center 9 receives instructions, the pre-mixed gas burns in the pulsating burner Combustion in the part 6 produces hot flue gas which is transmitted to the heat exchange and smoke exhaust part 7 of the pulsating burner, and finally the flue gas is discharged from the smoke exhaust pipe 5 and the hot water is discharged from the water outlet pipe 2.

The combustion part 6 of the pulse burner includes an ignition device 11 , a mixing chamber 12 and a combustion chamber 13 , as shown in FIG. 2 . The ignition device 11 is used for electric spark ignition; the mixing chamber 12 is used for sufficient mixing of air and gas; the combustion chamber 13 is used for pulse combustion.

After the control center 9 receives the instruction, the gas is controlled to enter the mixing chamber 12 from the gas intake pipe 3, and the air enters the mixing chamber 12 from the air intake pipe 4. The gas and air are fully mixed, and the ignition device 11 ignites the mixed gas and burns it in the combustion chamber 13. .

The heat exchange and smoke exhaust part 7 of the pulsating burner includes a smoke outlet 21 , a water inlet 22 , a water outlet 23 , a tailpipe 24 , a water jacket, and a decoupling chamber 25 , as shown in FIG. 3 . The heat exchange part includes a water inlet 22 , a water outlet 23 , a tailpipe 24 and a water jacket, and the smoke exhaust part includes a smoke outlet 21 and a decoupling chamber 25 . The smoke outlet 21 is connected to the smoke exhaust pipe 5 on the casing. The tailpipe 24 is helical, its front end is connected to the combustion chamber 13 , and its end is connected to the inlet of the decoupling chamber 25 . The surface of the tail pipe 24 is covered with a water jacket, and the surface of the tail pipe 24 is used as a heat exchange surface to heat the cold water in the water jacket. The water inlet 22 is connected to the water inlet pipe 1 on the casing, and is used to introduce cold water into the water jacket; the water outlet 23 is connected to the water outlet pipe 2 on the casing, and is used to discharge hot water out of the water jacket. The outlet of the decoupling chamber 25 is connected to the smoke outlet 21 . The decoupling chamber 25 is used to reduce the noise generated by pulsating combustion oscillations. Flue gas discharges gas water heater from exhaust pipe 5 at last.

During specific implementation, the hot flue gas enters the tailpipe 24 from the combustion part 6 of the pulse burner, and at the same time, the cold water enters the water jacket from the water inlet 22, and is discharged from the water outlet 23 to leave the water jacket after being heated. The smoke is discharged from the smoke outlet 21, and finally discharged from the gas water heater through the smoke exhaust pipe 5.

Pulse combustion is a new type of clean and advanced combustion technology. In this embodiment, it is designed in the water heater to increase the heat transfer coefficient, save the heat transfer area, and improve the combustion efficiency. In addition, the design of the spiral tail pipe is adopted to make full use of the space of the water heater and increase the heating area.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope defined by the claims of the present invention .

Claims (6)

1. A gas water heater based on pulsating combustion technology, characterized in that: comprising a shell and a pulsating burner inside the shell, a control center (9); Extended water inlet pipe (1), water outlet pipe (2), gas inlet pipe (3), air inlet pipe (4) and smoke exhaust pipe (5) are arranged on the casing; The water inlet pipe (1) is connected to the user's household water supply pipe to access cold water; the water outlet pipe (2) is connected to the household water pipe to output hot water; the gas inlet pipe (3) is connected to the household gas pipeline to connect combustible gas; the air inlet pipe (4) It communicates with the outside atmosphere; the smoke exhaust pipe (5) is used to discharge the flue gas generated by the pulsating burner; the control center (9) is used to regulate the entire water heater; The pulse burner includes a combustion part (6), a heat exchange part and a smoke exhaust part; the combustion part (6), the heat exchange part and the smoke exhaust part are all sealed; the pulse burner combustion part (6) is used for pre-combustible gas and air Combustion after mixing; the heat exchange part of the pulse burner is used to heat the cold water connected to the water inlet pipe (1) through the hot flue gas generated by the combustion part (6); the smoke exhaust part is used to pass the flue gas generated by the pulse burner through the smoke exhaust Pipe (5) discharges the gas water heater. 2. The gas water heater based on pulse combustion technology according to claim 1, characterized in that: the combustion part (6) of the pulse burner comprises an ignition device (11), a mixing chamber (12), and a combustion chamber (13); The ignition device (11) is used for electric spark ignition; the mixing chamber (12) is used for fully mixing air and gas; the combustion chamber (13) is used for pulse combustion; After the control center (9) receives the instruction, the gas enters the mixing chamber (12) through the gas inlet pipe (3), and the air enters the mixing chamber (12) through the air inlet pipe (4). ) burns in the combustion chamber (13) after being ignited. 3. The gas water heater based on pulse combustion technology according to claim 1 or 2, characterized in that: the heat exchange part of the pulse burner includes a water inlet (22), a water outlet (23), a tailpipe (24) and a water jacket The front end of the tailpipe (24) is connected to the combustion chamber (13), and the surface of the tailpipe (24) is provided with a water jacket; the water inlet (22) is connected to the water inlet pipe (1) on the shell, and is used to introduce cold water into the water jacket; The water outlet (23) is connected to the water outlet pipe (2) on the shell, and is used to discharge the hot water from the water jacket; the cold water enters the water jacket provided outside the tailpipe (24) from the water inlet (22), and the surface of the tailpipe (24) serves as a replacement The hot surface heats the cold water in the water jacket, and the heated hot water is discharged from the water jacket through the water outlet (23). 4. The gas water heater based on pulsating combustion technology according to claim 3, characterized in that: the smoke exhaust part of the pulsating burner comprises a decoupling chamber (25) and a smoke outlet (21); the decoupling chamber (25) The inlet of the inlet is connected to the end of the tailpipe (24), and the outlet of the decoupling chamber (25) is connected to the smoke outlet (21); the decoupling chamber (25) is used to reduce the noise generated by pulsating combustion oscillation; the smoke outlet (21) is connected to The smoke exhaust pipe (5) on the casing is used for exhausting smoke. 5. The gas water heater based on pulse combustion technology according to claim 1, characterized in that: the air intake pipe (4) is provided with an air pump (8) for pressing air into the pulse burner. 6. The gas water heater based on pulse combustion technology according to claim 1, characterized in that: the tailpipe (27) is helical.

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