CN205561250U - Domestic gas water heater - Google Patents

Abstract

The household gas water heater proposed in the utility model has an air inlet connected to an air inlet pipe, an air outlet connected to a smoke exhaust pipe, an exhaust fan arranged on the smoke exhaust pipe, a burner, a heat exchanger and a water storage tank all arranged in the box, a gas flow regulating valve arranged on the gas delivery pipe of the burner, a heat exchanger located above the burner, a water inlet and a water outlet of the heat exchanger connected to a water outlet pipe and a water return pipe respectively, a circulating pump arranged on the water outlet pipe, a cold water pipe and a hot water pipe connected to the water inlet of the water storage tank respectively, and a water outlet valve arranged on the hot water pipe; a heating pipe located in the water storage tank, a heating pipe arranged in a spiral shape, two ends of which are connected to the water outlet pipe and the water return pipe respectively through pipes, a control valve arranged on the pipe between the heating pipe and the water outlet pipe, and a heat exchange coil wound around the outer periphery of the heating pipe. The household gas water heater proposed in the utility model has low cost, high reliability, and convenient manufacturing, and can meet the needs of heating and domestic water at the same time.

Description

A household gas water heater

technical field

The utility model relates to the field of gas equipment, in particular to a household gas water heater.

Background technique

With the improvement of people's living standards, hot air water heaters have already entered thousands of households, and have become the hot water heating appliances used by the majority of household consumers and commercial users. Existing household gas water heaters are expensive, complicated to install or disassemble, and costly to manufacture, and cannot meet the demands of heating and hot water at the same time. The above problems urgently need to be solved.

Utility model content

Based on the technical problems existing in the background technology, the utility model proposes a domestic gas water heater to solve the above technical problems.

The utility model proposes a household gas water heater, comprising: a box, an exhaust fan, a burner, a heat exchanger and a water storage tank; the air inlet of the box is connected with an air intake pipe, and the air outlet of the box is connected with a flue gas discharge pipe, The exhaust fan is set on the flue gas discharge pipe, the burner, heat exchanger and water storage tank are all set in the box body, the gas flow regulating valve is set on the gas delivery pipe of the burner, the heat exchanger is located above the burner, and the heat The water inlet and outlet of the exchanger are respectively connected with an outlet pipe and a return pipe, the outlet pipe is provided with a circulation pump, the water inlet of the water storage tank is respectively connected with a cold water pipe and a hot water pipe, and a water outlet valve is arranged on the hot water pipe; the heating pipe is located at In the water storage tank, the heating pipe is arranged in a spiral shape, and its two ends are respectively connected to the outlet pipe and the return pipe through pipes. There is a control valve on the pipe between the heating pipe and the outlet pipe, and a heat exchange coil is coiled around the heating pipe. .

Preferably, a domestic water temperature sensor is also provided in the water storage tank.

Preferably, a circulating water temperature sensor is also provided in the water outlet pipe.

Preferably, a wind pressure switch is arranged in the smoke discharge pipe.

The utility model proposes a household gas water heater. When the gas flow regulating valve is opened, the indoor air and the gas are mixed and burned in the furnace cavity of the burner, and the smoke generated is discharged to the outside by the exhaust fan through the smoke discharge pipe, and the circulating water It is heated in the heat exchanger and circulates between the outlet pipe and the return pipe through the circulation pump. Since a radiator or a floor radiator can be arranged between the outlet pipe and the return pipe, it can provide heating to the room; when there is life When water is needed, the control valve is opened, the circulating water in the outlet pipe flows through the heating pipe, and the heat exchange coil transfers the heat in the circulating water to the domestic water in the water storage tank. The temperature of the domestic water rises, and the outlet valve is opened to obtain drinking water. The household gas water heater proposed by the utility model has low cost, high reliability, convenient manufacture, and can simultaneously meet heating and domestic water demands.

Description of drawings

Fig. 1 is a structural schematic diagram of a domestic gas water heater proposed by the utility model.

detailed description

As shown in Fig. 1, Fig. 1 is a structural schematic diagram of a domestic gas water heater proposed by the utility model.

Referring to Fig. 1, a kind of household gas water heater proposed by the utility model comprises: casing 1, exhaust fan 2, burner 3, heat exchanger 4 and water storage tank 9; The air outlet of the body 1 is connected with a flue gas discharge pipe, the exhaust fan 2 is arranged on the flue gas discharge pipe, the burner 3, the heat exchanger 4 and the water storage tank 9 are all arranged in the box body 1, and the gas transmission of the burner 3 The gas flow regulating valve 5 is arranged on the pipe, the heat exchanger 4 is located above the burner 3, the water inlet and the water outlet of the heat exchanger 4 are respectively connected with an outlet pipe 6 and a return pipe 7, and a circulation pump 8 is arranged on the outlet pipe 6, The water inlet of the water storage tank 9 is respectively connected with a cold water pipe 10 and a hot water pipe 11, and the hot water pipe 11 is provided with a water outlet valve 12; the heating pipe 13 is located in the water storage tank 9, and the heating pipe 13 is arranged in a spiral shape, and its two ends respectively pass through The pipes are connected to the water outlet pipe 6 and the water return pipe 7 , a control valve 14 is provided on the pipe between the heating pipe 13 and the water outlet pipe 6 , and a heat exchange coil 15 is coiled around the outer periphery of the heating pipe 11 .

In this embodiment, the gas flow regulating valve 5 is opened, and the indoor air and the gas are mixed and burned in the furnace chamber of the burner 3, and the generated flue gas is discharged to the outside by the exhaust fan 2 through the flue gas discharge pipe, and the circulating water is heated in the heat exchange. The inside of the water heater 4 is heated, and circulates between the outlet pipe 6 and the return pipe 7 through the circulation pump 8. Since a radiator or a floor radiator can be arranged between the outlet pipe 6 and the return pipe 7, the room can be heated; When there is a demand for domestic water, the control valve 14 is opened, the circulating water in the outlet pipe 6 flows through the heating pipe 13, and the heat exchange coil 15 transfers the heat in the circulating water to the domestic water in the water storage tank 9, and the temperature of the domestic water rises. High, open the water outlet valve 12, you can get domestic water.

In the above scheme, the domestic water temperature sensor is also provided in the water storage tank 9, and the domestic water temperature sensor obtains the domestic water temperature in the water storage tank 9 in real time. When the domestic water temperature is lower than the preset temperature value, the control valve 14 is automatically opened, and the cycle The water directly heats the domestic water in the water storage tank 9, so that the temperature of the domestic water is maintained in a stable range, so that it can be used immediately.

In addition, there is a circulating water temperature sensor in the water outlet pipe 6, and the opening degree of the gas flow regulating valve 5 can be adjusted according to the temperature of the circulating water. This design can save the consumption of gas.

After using for a period of time, the smoke discharge pipe may be blocked. Therefore, a wind pressure switch 16 is arranged in the smoke discharge pipe. According to the contact state of the wind pressure switch 16, it is judged whether the flue gas exhaust pipe is blocked, thereby facilitating maintenance.

The household gas water heater proposed by the utility model has low cost, high reliability, convenient manufacture, and can simultaneously meet heating and domestic water demands.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (4)

1. a domestic gas-fired water heater, it is characterised in that including: casing (1), exhaust blower (2), Burner (3), heat exchanger (4) and storage tank (9)；Casing (1) air inlet connects has air to enter Tracheae, casing (1) air outlet connects has smoke discharge pipe, exhaust blower (2) to be arranged on described fume emission Guan Shang, burner (3), heat exchanger (4) and storage tank (9) are arranged in casing (1), fire Being provided with gas consumption adjusting valve (5) on the gas supply pipe of burner (3), heat exchanger (4) is positioned at combustion Burner (3) top, heat exchanger (4) water inlet and delivery port are connected to outlet pipe (6) and backwater Pipe (7), outlet pipe (6) is provided with circulating pump (8), and storage tank (9) water inlet is connected to Cold water pipe (10) and hot-water line (11), hot-water line (11) is provided with outlet valve (12)；Add heat pipe (13) being positioned at storage tank (9), add heat pipe (13) and arrange in the shape of a spiral, pipeline is passed through at its two ends respectively It is connected with outlet pipe (6) and return pipe (7), adds on the pipeline between heat pipe (13) and outlet pipe (6) It is provided with control valve (14), adds heat pipe (11) periphery counter offer and be wound with heat exchanger coil (15).

Domestic gas-fired water heater the most according to claim 1, it is characterised in that in storage tank (9) It is additionally provided with Living Water temperature sensor.

Domestic gas-fired water heater the most according to claim 1, it is characterised in that in outlet pipe (6) It is additionally provided with circulating water temperature sensor.

Domestic gas-fired water heater the most according to claim 1, it is characterised in that described smoke discharge pipe Inside it is provided with blast switch (16).