CN210241971U

CN210241971U - Water heater with good heat insulation performance

Info

Publication number: CN210241971U
Application number: CN201921152903.6U
Authority: CN
Inventors: Jiasheng Fang; 房家胜
Original assignee: Chongqing Utrust Kitchen Equipment Co Ltd
Current assignee: Chongqing Utrust Kitchen Equipment Co Ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-04-03
Anticipated expiration: 2029-07-22

Abstract

The utility model discloses a water heater with good heat preservation performance, which comprises a combustion chamber arranged on the water tank side; the device is characterized in that a driving motor and a movable cover plate are arranged below the combustion chamber; a gear is arranged on an output shaft of the driving motor; the cover plate is provided with a rack meshed with the gear; the driving motor drives the cover plate to cover the ventilation opening below the fire grate through the gear and the rack. Adopt the technical scheme of the utility model, when the water heater during operation, control driving motor rotates, makes the drive gear of output shaft hand pass through rack drive apron and removes, opens the vent. When the fire grate is ignited, air can enter the heating pipe, and gas can be fully combusted. After the work is finished, the driving gear on the driving motor is utilized to drive the cover plate to seal the vent hole, so that the mobility of air in the heating pipe and the heat exchange speed between hot water and the outside are reduced. Thereby improving the heat preservation effect of the water heater and slowing down the cooling speed of hot water.

Description

Water heater with good heat insulation performance

Technical Field

The utility model relates to a water heater field, concretely relates to water heater that thermal insulation performance is good.

Background

The water heater is a common household appliance and comprises a water tank and a combustion chamber arranged below the water tank; a heating pipe is arranged in the combustion chamber; the middle section of the heating pipe extends into the water tank. When the water heater works, the fire grate in the combustion chamber is ignited to provide a heat source for the water heater. The flame enters the hot water tank along with the heating pipe, the water in the water tank is heated through the heating pipe, and waste gas generated by combustion is discharged by the heating pipe. In order to ensure that the fuel gas can be fully combusted, a ventilation opening is formed in the bottom plate of the combustion chamber below the fire grate; the tail end of the heating pipe is provided with an induced draft fan which guides air and flame into the heating pipe.

However, after the water heater is used, hot water is still reserved in the water tank. The air in the heating pipe has good fluidity because the head end and the tail end of the heating pipe are respectively communicated with the outside through the ventilation opening and the fan; the hot water has high heat exchange speed with the outside, is easy to cool and has serious heat loss.

Disclosure of Invention

For slowing down hydrothermal cooling rate in the water tank, the utility model provides a water heater that thermal insulation performance is good can utilize the apron to plug up the vent when the water heater stop work, reduces the mobility of air in the heating tube, improves the thermal insulation performance of water tank, slows down hydrothermal cooling rate.

The technical proposal of the utility model is that,

a water heater with good heat preservation performance comprises a combustion chamber arranged on a water tank; the device is characterized in that a driving motor and a movable cover plate are arranged below the combustion chamber; a gear is arranged on an output shaft of the driving motor; the cover plate is provided with a rack meshed with the gear; the driving motor drives the cover plate to cover the ventilation opening below the fire grate through the gear and the rack.

Adopt the technical scheme of the utility model, when the water heater during operation, control driving motor rotates, makes the drive gear of output shaft hand pass through rack drive apron and removes, opens the vent. When the fire grate is ignited, air can enter the heating pipe, and gas can be fully combusted. After the work is finished, the driving gear on the driving motor is utilized to drive the cover plate to seal the vent hole, so that the mobility of air in the heating pipe and the heat exchange speed between hot water and the outside are reduced. Thereby improving the heat preservation effect of the water heater and slowing down the cooling speed of hot water.

Preferably, a guide column for guiding the cover plate to move downwards is arranged on the bottom plate of the combustion chamber; the guide post lower extreme is connected with the stopper that prevents the apron and drop. The apron can smoothly move on vertical direction, guarantees that the apron blocks up the vent.

Preferably, a tee joint is arranged between the heating pipe in the combustion chamber and an induced draft fan connected with the heating pipe; the three-way joint comprises a vertical channel; the heating pipe is communicated with the induced draft fan through two channels except the vertical channel; the cover plate is provided with a partition plate, and the partition plate penetrates through the bottom of the combustion chamber and extends into the vertical channel; when the vent is blocked by the cover plate, the partition plate separates the heating pipe and the draught fan which are communicated. When the water heater stops working, the heating pipe is isolated from the outside through the cover plate and the partition plate, and the heat preservation effect is better.

Preferably, the front end of the heating pipe is communicated with a combustion cover used for covering the fire grate. The fire grate is covered by the combustion cover, so that the safety performance can be improved, flame is guided to enter the heating pipe, and the utilization rate of heat energy is improved.

The beneficial effects of the utility model are that, can reduce water heater water tank and external heat exchange speed, slow down the cooling of hot water in the water tank, strengthen water heater water tank's thermal insulation performance, improve the utilization ratio of heat energy.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, a water tank 1, a combustion chamber 2, a heating pipe 3, an induced draft fan 4, a driving motor 5, a cover plate 6, a gear 7, a rack 8, a fire grate 9, a vent 10, a guide column 11, a limiting block 12, a three-way joint 13, a partition plate 14 and a combustion cover 15.

Detailed Description

As shown in fig. 1, a water heater with good heat preservation performance is provided with a combustion chamber 2 arranged at the side of a water tank 1, and a heating pipe 3 is arranged in the combustion chamber 2; the heating pipe 3 firstly extends into the water tank 1 from the combustion chamber 2, and then extends into the combustion chamber 2 from the water tank 1; the tail end of the heating pipe 3 is connected with a draught fan 4 on the outer side wall of the combustion chamber 2. A driving motor 5 and a movable cover plate 6 are arranged below the combustion chamber 2; the driving motor 5 is fixed on the bottom plate of the combustion chamber 2 through a bracket; a gear 7 is arranged on an output shaft of the driving motor 5; a rack 8 meshed with the gear 7 is arranged on the cover plate 6; the driving motor 5 drives the cover plate 6 to cover the ventilation opening 10 below the fire row 9 through the gear 7 and the rack 8.

In order to ensure that the cover plate 6 can move smoothly in the vertical direction, a guide column 11 for guiding the cover plate 6 to move downwards is arranged on the bottom plate of the combustion chamber 2; the lower end of the guide post 11 is connected with a limiting block 12 for preventing the cover plate 6 from separating. The rack 8 is vertically fixed at the bottom of the cover plate 6.

In order to completely isolate the heating pipe 3 from the outside, a tee joint 13 is arranged between the heating pipe 3 and the induced draft fan 4; the three-way joint 13 is fixed on the bottom plate of the combustion chamber 2; the three-way joint 13 comprises a vertical channel therein; the heating pipe 3 is communicated with the induced draft fan 4 through two channels except the vertical channel; the cover plate 6 is provided with a partition plate 14, and the partition plate 14 penetrates through the bottom of the combustion chamber 2 and extends into the vertical channel; when the cover plate 6 blocks the ventilation opening 10, the partition plate 14 separates the heating pipe 3 and the draught fan 4 which are communicated. In order to improve the heat energy utilization rate, the front end of the heating pipe 3 is communicated with a combustion cover 15 for covering the fire grate 9.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. A water heater with good heat preservation performance comprises a combustion chamber (2) arranged at the side of a water tank (1); the device is characterized in that a driving motor (5) and a movable cover plate (6) are arranged below the combustion chamber (2); a gear (7) is arranged on an output shaft of the driving motor (5); a rack (8) meshed with the gear (7) is arranged on the cover plate (6); the driving motor (5) drives the cover plate (6) to cover the ventilation opening (10) below the fire grate (9) through the gear (7) and the rack (8).

2. The water heater with good heat preservation performance according to claim 1, characterized in that a guide column (11) for guiding the cover plate (6) to move downwards is arranged on the bottom plate of the combustion chamber (2); the lower end of the guide post (11) is connected with a limiting block (12) for preventing the cover plate (6) from falling.

3. The water heater with good heat preservation performance according to claim 2, characterized in that a tee joint (13) is arranged between the heating pipe (3) in the combustion chamber (2) and the induced draft fan (4) connected with the heating pipe (3); the three-way joint (13) comprises a vertical channel; the heating pipe (3) is communicated with the induced draft fan (4) through two channels except the vertical channel; a partition plate (14) is arranged on the cover plate (6), and the partition plate (14) penetrates through the bottom of the combustion chamber (2) and extends into the vertical channel; when the vent (10) is blocked by the cover plate (6), the partition plate (14) separates the heating pipe (3) and the draught fan (4) which are communicated.

4. The water heater with good heat preservation performance according to claim 3, characterized in that the front end of the heating pipe (3) is communicated with a combustion cover (15) used for covering the fire grate (9).