CN202792481U - Multi-level layered heat exchange displacement efficient water heater - Google Patents

Abstract

The utility model provides a multi-level layered heat exchange volumetric high-efficiency water heater, which at least includes a combustion chamber, a water tank, a cold water inlet, a hot water outlet and a burner located in the combustion chamber. The combustion chamber is located in the upper part of the water tank. , the water tank body is also equipped with a high-temperature exhaust pipe diversion heat exchange plate group, a low-temperature condensation exhaust pipe diversion heat exchange plate group, and a heat exchange plate flue gas channel connection pipe group; the low-temperature condensation exhaust pipe diversion heat exchange plate group Located in the lower part of the water tank, the other end of the low-temperature condensing pipe diversion heat exchange plate group is fixed to the water tank through the flue and leads to the outside world. A smoke exhaust fan is installed in the flue; the cold water inlet is located in the water tank. The bottom of the box body, the hot water outlet is located at the top of the water box body. Under the same rated heat load, the water heater can greatly reduce the exhaust gas temperature, improve the thermal efficiency of the whole machine, and also reduce the temperature maintenance heat load, thus greatly reducing the use cost and saving energy consumption.

Description

A multi-level layered heat exchange volumetric high-efficiency water heater

technical field

The utility model relates to a gas water heater, in particular to a gas volumetric high-efficiency water heater, in particular to a multi-level layered heat exchange volumetric high-efficiency water heater which can improve the working efficiency of the whole machine.

Background technique

With the continuous development of science and technology and the improvement of people's living standards, the demand for hot water in people's daily life has greatly increased. Water heaters and gas water heaters are widely used by people, especially gas volumetric water heaters have gradually entered thousands of households. He uses gas combustion to heat up the water in the tank, but because the existing gas volumetric water heater has a small heat exchange surface, the high-temperature flue gas flow generated by combustion is short, and the flue gas exhaust temperature is high, and some parts are lost. The heat cannot be fully utilized, resulting in low thermal efficiency of the whole machine, and the temperature maintenance heat load is high, thus generating a certain amount of waste of heat energy.

Contents of the invention

The utility model provides a multi-level layered heat exchange volumetric high-efficiency water heater, which solves the above-mentioned deficiencies in the background technology. Under the same rated heat load, the water heater can greatly reduce the exhaust gas temperature and improve the thermal efficiency of the whole machine. At the same time, it also reduces the temperature maintenance heat load, thus greatly reducing the use cost and saving energy consumption.

The technical scheme adopted to realize the above-mentioned purpose of the utility model is:

A multi-stage layered heat exchange volumetric high-efficiency water heater at least includes a combustion chamber, a water tank body, a cold water inlet, a hot water outlet, and a burner located in the combustion chamber. The combustion chamber is located in the upper part of the water tank body. There are high-temperature pipe diversion heat exchange plate group, low-temperature condensation pipe diversion heat exchange plate group and heat exchange plate flue gas channel connection pipe group, and the high-temperature pipe diversion heat exchange plate group is located on the upper part of the water tank , and is connected with the gas outlet of the combustion chamber; the low-temperature condensing exhaust pipe diversion heat exchange plate group is located in the lower part of the water tank, and one end of it is connected to the high-temperature exhaust pipe diversion pipe group through the flue gas channel of the heat exchange plate The hot plate group is connected, and the other end of the low-temperature condensing pipe diversion heat exchange plate group is fixed with the water tank through the flue and leads to the outside world. A smoke exhaust fan is installed in the flue; the cold water inlet is located in the water tank The lower part of the body, the hot water outlet is located at the top of the water tank body.

The bottom of the water tank is provided with cleaning holes.

The combustion chamber is provided with an air guide cover and a gas solenoid valve.

The outer wall of the water tank is provided with an insulating layer, and the outer wall of the water tank is provided with a water heater shell.

The multi-level layered heat exchange volumetric high-efficiency water heater provided by the utility model has the following advantages: In order to actively respond to the government's energy-saving policy and meet the needs of the society and the market, the water heater provided by the utility model converts the high-temperature flue gas produced by the combustion chamber into Discharge from top to bottom, because when the water in the water tank is heated, the hot water is located in the upper layer of the water tank, the cold water is located in the lower layer of the water tank, and the cold water inlet is also located in the lower part of the water tank, so the high-temperature flue gas can be fully discharged from the water tank. It is condensed by the cold water and transfers its own heat to the cold water, which not only reduces the waste of energy, but also preheats the water at the bottom of the water tank. Calculated according to the international common low calorific value calculation method, the thermal efficiency of the water heater provided by the utility model is as high as 120%.

Description of drawings

Fig. 1 is the structural representation of the multi-stage layered heat exchange volumetric high-efficiency water heater provided by the utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the left view of Fig. 1;

In the figure: 1-water tank body, 2-combustion chamber, 3-burner, 4-air guide cover, 5-gas solenoid valve, 6-hot water outlet, 7-high temperature pipe diversion heat exchange plate group , 8- low-temperature condensing exhaust pipe diversion heat exchange plate group, 9- heat exchange plate flue gas channel connection pipe group, 10- flue, 11- smoke exhaust fan, 12- cleaning hole, 13- insulation layer, 14 - water heater housing, 15 - cold water inlet.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail.

The structure of the multi-stage layered heat exchange volumetric high-efficiency water heater provided by the utility model is shown in Figure 1, Figure 2 and Figure 3, and at least includes a combustion chamber 2, a water tank body 1, a cold water inlet 15, and a hot water outlet 6 And the burner 3 located in the combustion chamber 2. The combustion chamber 2 is located on the upper part of the water tank body 1, the burner 3 in the combustion chamber 2 is connected with the gas pipeline, the gas burns in the combustion chamber 2 to generate heat to heat the water, and the combustion chamber 2 is provided with an air guide cover 4 to ensure For the supply of oxygen required for combustion, a gas solenoid valve 5 is installed on the gas pipeline.

The water tank body 1 is also provided with a high-temperature exhaust pipe diversion heat exchange plate group 7 , a low-temperature condensation exhaust pipe diversion heat exchange plate group 8 and a flue gas passage connecting pipe group 9 of the heat exchange plates. The high-temperature exhaust pipe diversion heat exchange plate group 7 is located on the upper part of the water tank body 1, and is connected with the gas outlet of the combustion chamber 2, and the flue gas generated by the burner 3 enters the high-temperature exhaust pipe diversion exchanger through the gas outlet. The water in the water tank is heated in the hot plate group 7 . The low-temperature condensing exhaust pipe diversion heat exchange plate group 8 is located in the lower part of the water tank, and one end of it communicates with the high-temperature exhaust pipe diversion heat exchange plate group 7 through the heat exchange plate flue gas channel connection tube group 7, and the heat generated by the burner 3 The flue gas passes through the high-temperature exhaust pipe diversion heat exchange plate group 7, and then enters the low-temperature condensation exhaust pipe diversion heat exchange plate group 8 through the heat exchange plate flue gas channel connection pipe group 9, due to the low-temperature condensation exhaust pipe diversion heat exchange plate group 9 is located at the lower part of the water tank, and the cold water is located at the lower part during the heating process, so the flue gas is condensed by the cold water in the low-temperature condensation pipe flow guide heat exchange plate group 8, and the low temperature condensation pipe flow guide heat exchange plate group 8 The other end is fixed with the water tank body 1 through the flue 10 and leads to the outside. The smoke exhaust fan 11 is arranged in the flue 10, and the smoke exhaust fan 11 guides the cooled flue gas from the low-temperature condensation exhaust pipe to the heat exchange plate. Drawn in group 8.

The cold water inlet 15 is located at the bottom of the water tank 1 , and the hot water outlet 6 is located at the top of the water tank 1 . The outer wall of the water tank body 1 is also provided with an insulating layer 13 for maintaining the water temperature in the water tank, and the insulating layer 13 is also provided with a water heater shell 14 .

Scale will be deposited on the bottom of the water tank body during long-term use of the water tank body 1 , so the bottom of the water tank body 1 is provided with a cleaning hole 12 .

The working principle of the multi-stage layered heat exchange volumetric high-efficiency water heater provided by the utility model is as follows: the water heater discharges the high-temperature flue gas generated in the combustion chamber from top to bottom, and when the water in the water tank is heated, the hot water is located on the upper layer of the water tank , the cold water is located in the lower layer of the water tank, and the cold water inlet is also located in the lower part of the water tank, so the high-temperature flue gas can be fully condensed by the cold water in the process of being discharged from the water tank, and its own heat is transferred to the cold water. Waste of energy while still being able to preheat the water at the bottom of the tank. Calculated according to the international common low calorific value calculation method, the thermal efficiency of the water heater provided by the utility model is as high as 120%.

Claims (4)

1. multilevel hierarchy heat exchange positive displacement high-efficiency water heater, at least comprise combustion chamber, water tank, cold water inlet, hot water outlet and the burner that is positioned at the combustion chamber, it is characterized in that: the combustion chamber is positioned at the top of water tank, also be provided with high temperature drain pipe flow diversion plate package, cryogenic condensation drain pipe flow diversion plate package and heat exchanger plates exhaust gases passes tube connector group in the water tank, described high temperature drain pipe flow diversion plate package is positioned at the top of water tank, and is connected with the gas outlet of combustion chamber; Described cryogenic condensation drain pipe flow diversion plate package is positioned at the bottom of water tank, and the one end is communicated with high temperature drain pipe flow diversion plate package by heat exchanger plates exhaust gases passes tube connector group, the other end of cryogenic condensation drain pipe flow diversion plate package is fixed by flue and water tank and is led to the external world, is provided with pump drainage cigarette blower fan in the flue; Described cold water inlet is positioned at the bottom of water tank, and hot water outlet is positioned at the top of water tank.

2. multilevel hierarchy heat exchange positive displacement high-efficiency water heater according to claim 1, it is characterized in that: the bottom of described water tank is provided with soil shifting opening.

3. multilevel hierarchy heat exchange positive displacement high-efficiency water heater according to claim 1, it is characterized in that: described combustion chamber is provided with air conducting cover and gas electromagnetic valve.

4. multilevel hierarchy heat exchange positive displacement high-efficiency water heater according to claim 1, it is characterized in that: the outer wall of described water tank is provided with heat-insulation layer, and heat-insulation layer is provided with outer cover of water heater.

Images