Energy-saving device of energy storage electric boiler

Abstract

The utility model belongs to the technical field of electric boiler energy-saving devices, and particularly relates to an energy-storage electric boiler energy-saving device which comprises an electric boiler and a heat exchanger, an outer water tank is arranged on the outer side of the electric boiler, a cavity is formed between the electric boiler and the outer water tank, a steam pipe is arranged in the cavity, and a plurality of heating pipes are arranged in the electric boiler. A water guide pipe is communicated between the electric boiler and the heat exchanger, a water return pipe is communicated between the outer water tank and the heat exchanger, the bottom of the electric boiler is communicated with a water pumping pipe extending into the cavity, a water pump is arranged on the outer wall of the water pumping pipe, a pressure relief pipe is communicated between the steam pipe and the electric boiler, and a pressure relief valve is arranged on the outer wall of the pressure relief pipe. According to the electric boiler, the preheating function is achieved, meanwhile, the good heat preservation and heat insulation effect is achieved, heat loss is avoided, and therefore the energy-saving effect of the electric boiler is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric boiler energy-saving device, concretely is a kind of energy storage electric boiler energy-saving device. BACKGROUND

[0002] Boiler is a kind of heat transfer to the water in container by the heat energy released after fuel combustion, make water reach required temperature or certain pressure steam's thermal equipment.Electric boiler is with electric power as energy source, and it is converted into heat energy, thereby through boiler conversion to external output has certain heat energy's steam, high-temperature water or organic heat carrier.Electric boiler body is mainly composed of electric boiler steel shell, computer control system, low-voltage electrical system, electric heating pipe, inlet and outlet water pipe and monitoring instrument etc.;

[0003] Traditional regenerative electric boiler will have a part of heat loss in the process of operation, to cause waste, and the steam generated after water heating can only preheat to make-up tank, cannot play the role of heat preservation to electric boiler body. SUMMARY

[0004] The utility model discloses a kind of energy storage electric boiler energy-saving devices, realize preheating function while playing good heat preservation and heat insulation effect, avoid heat loss, to improve the energy-saving effect of electric boiler.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of energy storage electric boiler energy-saving device, including electric boiler and heat exchanger, the outside of the electric boiler is provided with outer water tank, the cavity is formed between the electric boiler and outer water tank, the inside of the cavity is provided with steam pipe, the inside of the electric boiler is provided with multiple heating pipes, the water guide pipe is communicated between the electric boiler and heat exchanger, the backwater pipe is communicated between the outer water tank and heat exchanger, the bottom of the electric boiler is communicated with the water pump pipe extending to the inside of cavity, the outer wall of the water pump pipe is provided with water pump, the steam pipe and electric boiler are communicated with the pressure relief pipe, the outer wall of the pressure relief pipe is provided with pressure relief valve.

[0006] To facilitate to the inside of electric boiler and outer water tank import water, as a kind of energy storage electric boiler energy-saving device of the utility model preferably, the top of the electric boiler is communicated with the first inlet pipe extending to the outside of outer water tank, the top of the outer water tank is communicated with the second inlet pipe.

[0007] To facilitate to the inside of heat exchanger import water, as a kind of energy storage electric boiler energy-saving device of the utility model preferably, the outer wall of the water guide pipe and backwater pipe is provided with valve and pump body.

[0008] In order to fix support for the electric boiler and steam pipe, as a kind of energy-saving device of energy storage electric boiler preferred, the bottom of the electric boiler and the inner wall of outer water tank are fixedly connected with two support columns, the steam pipe and the inner wall of outer water tank are fixedly connected with a plurality of connecting rods.

[0009] In order to monitor the air pressure and temperature inside the electric boiler, as a kind of energy-saving device of energy storage electric boiler preferred, the inner wall of the electric boiler is provided with pressure sensor and temperature sensor, and the front end surface of the outer wall of the outer water tank is provided with control panel.

[0010] In order to avoid the water backflow in the water pump, as a kind of energy-saving device of energy storage electric boiler preferred, the inside of the water pump is provided with a one-way valve.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The utility model discloses when using, through the first inlet pipe, water is injected into the electric boiler, when the water level inside the electric boiler reaches the specified position, a plurality of heating pipes are started by the control panel, and the water inside the electric boiler is heated, the pressure sensor can monitor the pressure in real time, when reaching the target pressure value, the water enters the heat exchanger through the water guide pipe, and after the heat exchanger works, the water enters the inside of the outer water tank through the backwater pipe, because the water still has residual heat, the second inlet pipe is opened to inject water into the outer water tank, and the water with residual heat can preliminarily preheat the water in the outer water tank.

[0013] When the water inside the electric boiler is heated, if the air pressure is too large, the pressure relief valve is opened, the excess steam enters the inside of the steam pipe, and then the steam pipe is used to preheat and insulate the water inside the cavity, and at the same time, because the outer water tank is arranged on the outside of the electric boiler, good heat preservation and insulation effect are achieved, heat loss is avoided, the high-temperature water vapor generated by water heating can be fully utilized, and the energy-saving effect of the electric boiler is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the internal structure schematic diagram of the utility model;

[0015] Fig. 2 It is the sectional structure schematic diagram of the water pump of the utility model;

[0016] Fig. 3 It is the overall structure schematic diagram of the utility model.

[0017] In the figure: 1, electric boiler; 2, outer water tank; 3, cavity; 4, steam pipe; 5, heating pipe; 6, heat exchanger; 7, water guide pipe; 8, backwater pipe; 9, water pumping pipe; 10, water pumping pump; 11, pressure relief pipe; 12, pressure relief valve; 13, first water inlet pipe; 14, second water inlet pipe; 15, valve; 16, pump body; 17, support column; 18, connecting rod; 19, pressure sensor; 20, temperature sensor; 21, control panel; 22, check valve. DETAILED DESCRIPTION

[0018] Please refer to Figs. 1 to 3 An energy-saving device for electric boiler, comprising an electric boiler 1 and a heat exchanger 6, an outer water tank 2 is arranged on the outer side of the electric boiler 1, a cavity 3 is formed between the electric boiler 1 and the outer water tank 2, a steam pipe 4 is arranged in the cavity 3, a plurality of heating pipes 5 are arranged in the electric boiler 1, a water guide pipe 7 is communicated between the electric boiler 1 and the heat exchanger 6, a backwater pipe 8 is communicated between the outer water tank 2 and the heat exchanger 6, a water pumping pipe 9 extending into the cavity 3 is communicated at the bottom of the electric boiler 1, a water pumping pump 10 is arranged on the outer wall of the water pumping pipe 9, a pressure relief pipe 11 is communicated between the steam pipe 4 and the electric boiler 1, and a pressure relief valve 12 is arranged on the outer wall of the pressure relief pipe 11.

[0019] In the embodiment: water is injected into the electric boiler 1 through the first water inlet pipe 13, when the water level in the electric boiler 1 reaches a specified position, the plurality of heating pipes 5 are started by the control panel 21 to heat the water in the electric boiler 1, the pressure sensor 19 can monitor the pressure in real time, when the target pressure value is reached, the water enters the heat exchanger 6 through the water guide pipe 7, after the heat exchanger 6 works, the water enters the inside of the outer water tank 2 through the backwater pipe 8, because the water still has residual heat, the outer water tank 2 is injected with water by opening the second water inlet pipe 14, and the water with residual heat can preliminarily preheat the water in the outer water tank 2; when the air pressure and temperature in the electric boiler 1 are too low, the water in the outer water tank 2 is pumped into the electric boiler 1 by the water pumping pump 10 to supplement the water, thereby improving the energy-saving effect of the electric boiler 1; when the water in the electric boiler 1 is heated, if the air pressure is too large, the pressure relief valve 12 is opened, so that the excess steam enters the inside of the steam pipe 4, and then the steam pipe 4 is used to preheat and keep warm the water in the cavity 3, and at the same time, because the outer water tank 2 is arranged on the outer side of the electric boiler 1, a good heat preservation and insulation effect is achieved, heat loss is avoided, the high-temperature water vapor generated by water heating can be fully utilized, and the energy-saving effect of the electric boiler 1 is further improved.

[0020] As a technical optimization scheme of the utility model, the top of the electric boiler 1 is communicated with the first water inlet pipe 13 extending to the outer side of the outer water tank 2, and the top of the outer water tank 2 is communicated with the second water inlet pipe 14.

[0021] In the embodiment: the first water inlet pipe 13 and the second water inlet pipe 14 are respectively used for injecting water into the electric boiler 1 and the outer water tank 2.

[0022] As a technical optimization scheme of the utility model, the outer wall of the water guide pipe 7 and the water return pipe 8 is provided with a valve 15 and a pump body 16.

[0023] In this embodiment, the outer wall of the water guide pipe 7 and the water return pipe 8 is provided with a valve 15 and a pump body 16, which facilitates the opening and closing of the water guide pipe 7 and the water return pipe 8 and facilitates the circulation of water.

[0024] As a technical optimization scheme of the utility model, the bottom of the electric boiler 1 and the inner wall of the outer water tank 2 are fixedly connected with two support columns 17, and the steam pipe 4 and the inner wall of the outer water tank 2 are fixedly connected with a plurality of connecting rods 18.

[0025] In this embodiment, the support column 17 is used for fixing and supporting the electric boiler 1, and the connecting rod 18 is used for fixing the steam pipe 4.

[0026] As a technical optimization scheme of the utility model, the inner wall of the electric boiler 1 is provided with a pressure sensor 19 and a temperature sensor 20, and the front end surface of the outer wall of the outer water tank 2 is provided with a control panel 21.

[0027] In this embodiment, the pressure sensor 19 and the temperature sensor 20 can monitor the internal pressure and temperature of the electric boiler 1 in real time, the control panel 21 is electrically connected with a plurality of electrical elements of the utility model, and the operation and control are facilitated.

[0028] As a technical optimization scheme of the utility model, the inside of the water pumping pipe 9 is provided with a one-way valve 22.

[0029] In this embodiment, the inside of the water pumping pipe 9 is provided with a one-way valve 22, which avoids the inflow of water in the electric boiler 1 into the inside of the outer water tank 2.

[0030] Working principle: when the utility model is used, water is injected into the electric boiler 1 through the first water inlet pipe 13, when the water level in the electric boiler 1 reaches a specified position, a plurality of heating pipes 5 are started to heat the water in the electric boiler 1 by controlling the control panel 21, the pressure sensor 19 can monitor the pressure in real time, when the target pressure value is reached, the water enters the heat exchanger 6 through the water guide pipe 7, after the heat exchanger 6 works, the water enters the inside of the outer water tank 2 through the water return pipe 8, because the water still has residual heat, the second water inlet pipe 14 is opened to inject water into the outer water tank 2, and the water with residual heat can preliminarily preheat the water in the outer water tank 2; when the pressure and temperature in the electric boiler 1 are too low, the water pump 10 is started to pump the water in the outer water tank 2 into the electric boiler 1 to supplement the water, thereby improving the energy-saving effect of the electric boiler 1; when the water in the electric boiler 1 is heated, if the pressure is too large, the pressure relief valve 12 is opened, the excess steam enters the inside of the steam pipe 4, and then the steam pipe 4 is used to preheat and insulate the water in the cavity 3.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An energy saving device for an electrically heated boiler, comprising an electrically heated boiler (1) and a heat exchanger (6), characterized in that: The outer side of the electric boiler (1) is provided with an outer water tank (2), a cavity (3) is formed between the electric boiler (1) and the outer water tank (2), a steam pipe (4) is arranged in the cavity (3), a plurality of heating pipes (5) are arranged in the electric boiler (1), a water guide pipe (7) is communicated between the electric boiler (1) and a heat exchanger (6), a backwater pipe (8) is communicated between the outer water tank (2) and the heat exchanger (6), a water pumping pipe (9) extending into the cavity (3) is communicated at the bottom of the electric boiler (1), a water pumping pump (10) is arranged on the outer wall of the water pumping pipe (9), a pressure relief pipe (11) is communicated between the steam pipe (4) and the electric boiler (1), and a pressure relief valve (12) is arranged on the outer wall of the pressure relief pipe (11).

2. The energy saving device for electrically heated boiler according to claim 1, characterized in that: A first water inlet pipe (13) extending to the outside of the outer water tank (2) is communicated at the top of the electric boiler (1), and a second water inlet pipe (14) is communicated at the top of the outer water tank (2).

3. The energy saving device for electrically heated boiler according to claim 1, characterized in that: Valves (15) and pump bodies (16) are arranged on the outer walls of the water guide pipe (7) and the backwater pipe (8).

4. The energy saving device for electrically heated boiler according to claim 1, characterized in that: Two support columns (17) are fixedly connected between the bottom of the electric boiler (1) and the inner wall of the outer water tank (2), and a plurality of connecting rods (18) are fixedly connected between the steam pipe (4) and the inner wall of the outer water tank (2).

5. The energy saving device for electrically heated boiler according to claim 1, characterized in that: A pressure sensor (19) and a temperature sensor (20) are arranged on the inner wall of the electric boiler (1), and a control panel (21) is arranged on the front end surface of the outer wall of the outer water tank (2).

6. The energy saving device for electrically heated boiler according to claim 1, characterized in that: A one-way valve (22) is arranged in the water pumping pipe (9).

Images