CN219995579U - Gas heater with heat recovery function - Google Patents

Abstract

The utility model discloses a gas heater with a heat recovery function, which belongs to the technical field of gas water heaters and comprises a combustion chamber and a gas heater arranged in the combustion chamber, wherein the upper end of the gas heater is connected with a first exhaust pipe, the first exhaust pipe is connected with a fan, the fan is connected with a heat exchange chamber through a second exhaust pipe, a baffle plate is arranged in the heat exchange chamber, a plurality of flue pipes are arranged on the baffle plate, one end of the heat exchange chamber is connected with a cold water inlet pipe, the lower end of the heat exchange chamber is connected with a heat exchange pipe, and the heat exchange pipes are led into the combustion chamber. According to the gas heater with the heat recovery function, the second exhaust pipe is connected with the heat exchange chamber, the flue gas is introduced into the heat exchange chamber, cold water is heated by using the waste heat of the flue gas, and the heated cold water is introduced into the combustion chamber for secondary heating, so that the waste heat of the flue gas is efficiently utilized, and the waste of resources is reduced.

Description

Gas heater with heat recovery function

Technical Field

The utility model relates to the technical field of gas water heaters, in particular to a gas heater with a heat recovery function.

Background

The gas heater is one kind of gas water heater, and utilizes gas as fuel, and the heat release of fuel heats water, and because of having advantages such as small, the heating is fast, its application field is very extensive.

The gas heater in the market at present is various, but most of the gas heater has no heat recovery function, the burnt flue gas is directly discharged into the air, and the flue gas can indirectly take away a part of heat, so that a large amount of waste heat cannot be well utilized, and the waste heat is directly dissipated, so that the resource waste is caused.

Disclosure of Invention

The utility model aims to provide a gas heater with a heat recovery function, which is characterized in that a temperature sensor is connected with a display screen, the temperature in a combustion chamber can be monitored in real time, the heat dissipation of heat in the combustion chamber can be prevented by the double heat resistance arrangement of an asbestos layer and a carbon steel plate layer, a second exhaust pipe is connected with a heat exchange chamber, flue gas is introduced into the heat exchange chamber, cold water is heated by utilizing the waste heat of the flue gas, and the heated cold water is introduced into the combustion chamber for secondary heating, so that the waste heat of the flue gas can be efficiently utilized, and the waste of resources is reduced.

In order to achieve the above purpose, the utility model provides a gas heater with a heat recovery function, which comprises a combustion chamber and a gas heater arranged in the combustion chamber, wherein the upper end of the gas heater is connected with a first exhaust pipe, the first exhaust pipe is connected with a fan, the fan is connected with a heat exchange chamber through a second exhaust pipe, a baffle plate is arranged in the heat exchange chamber, a plurality of flue pipes are arranged on the baffle plate, one end of the heat exchange chamber is connected with a cold water inlet pipe, the lower end of the heat exchange chamber is connected with a heat exchange pipe, and the heat exchange pipe is led into the combustion chamber.

Preferably, an asbestos layer is arranged outside the combustion chamber, and a carbon steel plate layer is arranged outside the asbestos layer.

Preferably, the outer disc of the gas heater is provided with a plurality of heating coils, the lower end of the gas heater is connected with a gas pipe, and a first valve is arranged on the gas pipe.

Preferably, the lower extreme of combustion chamber is connected with the outlet pipe, be provided with the second valve on the outlet pipe, the second valve is located one side of first valve, the upper end of combustion chamber is connected with the inlet channel, be provided with the third valve on the inlet channel.

Preferably, a temperature sensor is installed on the inner wall of the combustion chamber, the temperature sensor is electrically connected with a display screen, and the display screen is positioned on the outer wall of the carbon steel plate layer.

Preferably, a fourth valve is arranged on the cold water inlet pipe.

Therefore, the gas heater with the heat recovery function has the following beneficial effects that:

(1) The temperature sensor is connected with the display screen, so that the temperature in the combustion chamber can be monitored in real time, and the speed of the fuel gas introduced into the fuel gas heater can be controlled.

(2) The double heat-resistant arrangement of the asbestos layer and the carbon steel plate layer can prevent heat from being dissipated into the combustion chamber, and the heat loss problem is greatly reduced.

(3) The second exhaust pipe is connected with the heat exchange chamber, the flue gas is led into the heat exchange chamber, the cold water is heated by utilizing the waste heat of the flue gas, and the heated cold water is led into the combustion chamber for secondary heating, so that the waste heat of the flue gas can be efficiently utilized, and the waste of resources is reduced.

(4) The external disk of the gas heater is provided with a plurality of heating coils, so that the water can be heated by utilizing the heat released by the combustion of the fuel better.

The technical scheme of the utility model is further described in detail through the drawings and the embodiments.

Drawings

FIG. 1 is a schematic diagram of a gas heater with heat recovery function according to an embodiment of the present utility model;

reference numerals

1. A combustion chamber; 2. a gas heater; 3. a first exhaust pipe; 4. a blower; 5. a second exhaust pipe; 6. a heat exchange chamber; 7. a baffle plate; 8. a flue pipe; 9. a cold water inlet pipe; 10. a heat exchange tube; 11. an asbestos layer; 12. a carbon steel plate layer; 13. a heating coil; 14. a gas pipe; 15. a water outlet pipe; 16. a water inlet channel; 17. a temperature sensor; 18. a display screen; 19. a first valve; 20. a second valve; 21. a third valve; 22. and a fourth valve.

Detailed Description

The technical scheme of the utility model is further described below through the attached drawings and the embodiments.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Examples

As shown in fig. 1, the utility model provides a gas heater with a heat recovery function, which comprises a combustion chamber 1 and a gas heater 2 arranged in the combustion chamber 1, wherein a plurality of heating coils 13 are arranged on an outer disc of the gas heater 2, so that the water can be heated by utilizing the heat released by fuel combustion better. The lower extreme of gas heater 2 is connected with gas pipe 14, is provided with first valve 19 on the gas pipe 14, and first valve 19 can control the business turn over of gas.

The lower extreme of combustion chamber 1 is connected with outlet pipe 15, is provided with second valve 20 on the outlet pipe 15, and second valve 20 is located one side of first valve 19, and second valve 20 can control the water business turn over combustion chamber 1 after the heating. The upper end of the combustion chamber 1 is connected with a water inlet channel 16, and a third valve 21 is arranged on the water inlet channel 16.

The upper end of the gas heater 2 is connected with a first exhaust pipe 3, the first exhaust pipe 3 is connected with a fan 4, the fan 4 is connected with a heat exchange chamber 6 through a second exhaust pipe 5, and when the fan 4 is started, the flue gas with waste heat can enter the heat exchange chamber 6 through the exhaust pipe. The inside baffle 7 that is provided with of heat exchange chamber 6, be provided with a plurality of flue pipes 8 on the baffle 7, can effectually retrieve the heat in the flue gas. One end of the heat exchange chamber 6 is connected with a cold water inlet pipe 9, the lower end is connected with a heat exchange pipe 10, and a fourth valve 22 is arranged on the cold water inlet pipe 9 to control cold water to enter and exit the heat exchange chamber 6. The heat exchange tube 10 is introduced into the combustion chamber 1 to heat cold water by using the waste heat of the flue gas, and the heated cold water is introduced into the combustion chamber 1 to be secondarily heated, so that the waste heat of the flue gas is efficiently utilized, and the waste of resources is reduced.

The outside of combustion chamber 1 is provided with asbestos layer 11, and the outside of asbestos layer 11 is provided with carbon steel sheet layer 12, and the dual heat resistance setting of asbestos layer 11 and carbon steel sheet layer 12 can prevent heat dissipation in the combustion chamber 1, has significantly reduced the problem of heat loss. The temperature sensor 17 is arranged on the inner wall of the combustion chamber 1, the temperature sensor 17 is electrically connected with the display screen 18, the display screen 18 is positioned on the outer wall of the carbon steel plate layer 12, the temperature in the combustion chamber 1 can be monitored in real time, and the speed of gas introduced into the gas heater 2 can be controlled.

When the device is used, the first valve 19 on the gas pipe 14 is opened firstly to enable fuel gas to enter the combustion chamber 1 for combustion, the third valve 21 on the water inlet channel 16 is opened simultaneously to enable cold water to enter the combustion chamber 1, heat released by combustion heats cold water in the combustion chamber 1 through the heating coil 13, flue gas generated by combustion enters the heat exchange chamber 6 through the exhaust pipe, cold water is introduced into the heat exchange chamber 6 through the cold water inlet pipe 9 simultaneously, flue gas flows in the flue pipe 8 and heats cold water outside the flue pipe 8 simultaneously, the heated cold water enters the combustion chamber 1 through the heat exchange pipe 10 for secondary heating, the temperature sensor 17 can check the water temperature while heating and feeds back to the display screen 18, when the water is heated to a certain temperature, the heating is stopped, the second valve 20 on the water outlet pipe 15 is opened, and hot water is released for use.

Therefore, the gas heater with the heat recovery function adopts the structure, the temperature sensor is connected with the display screen, the temperature in the combustion chamber can be monitored in real time, the dual heat resistance setting of the asbestos layer and the carbon steel plate layer can prevent heat from being dissipated out of the combustion chamber, the second exhaust pipe is connected with the heat exchange chamber, flue gas is introduced into the heat exchange chamber, cold water is heated by utilizing the waste heat of the flue gas, and the heated cold water is introduced into the combustion chamber for secondary heating, so that the waste heat of the flue gas can be efficiently utilized, and the waste of resources is reduced.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and although the present utility model has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the utility model can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the utility model.

Claims (6)

1. A gas heater with heat recovery function, characterized in that: including the combustion chamber and set up the inside gas heater of combustion chamber, gas heater upper end is connected with first blast pipe, first blast pipe is connected with the fan, the fan is connected with the heat transfer room through the second blast pipe, the inside baffling baffle that is provided with of heat transfer room, be provided with a plurality of flue pipes on the baffling baffle, heat transfer room one end is connected with cold water inlet tube, and the lower extreme is connected with the heat transfer pipe, the heat transfer pipe lets in the combustion chamber.

2. A gas heater with heat recovery function according to claim 1, wherein: the outside of combustion chamber is provided with the asbestos layer, the outside on asbestos layer is provided with the carbon steel sheet layer.

3. A gas heater with heat recovery function according to claim 2, wherein: the external disk of the gas heater is provided with a plurality of heating coils, the lower end of the gas heater is connected with a gas pipe, and a first valve is arranged on the gas pipe.

4. A gas heater with heat recovery function according to claim 3, wherein: the lower extreme of combustion chamber is connected with the outlet pipe, be provided with the second valve on the outlet pipe, the second valve is located one side of first valve, the upper end of combustion chamber is connected with the inlet channel, be provided with the third valve on the inlet channel.

5. A gas heater with heat recovery function according to claim 4, wherein: the temperature sensor is arranged on the inner wall of the combustion chamber and is electrically connected with the display screen, and the display screen is positioned on the outer wall of the carbon steel plate layer.

6. A gas heater with heat recovery function according to claim 5, wherein: and a fourth valve is arranged on the cold water inlet pipe.