CN211781939U

CN211781939U - Double-energy water heater

Info

Publication number: CN211781939U
Application number: CN202020317302.2U
Authority: CN
Inventors: 张昊宇; 张仁海
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-10-27
Anticipated expiration: 2030-03-13

Abstract

The scheme discloses a dual-energy water heater in the field of water heaters, which comprises a gas water heater and an electric heating device, wherein the gas water heater comprises a main board and a water outlet pipe; the electric heating device comprises an inner container, and a hot water element, a heating element and a temperature sensor which are positioned in the inner container, wherein the water outlet end of the water outlet pipe is communicated with the inner container, and one end of the hot water pipe extends out of the bottom of the inner container; the heating element is connected with a power supply and an electric control switch; the temperature sensor is communicated with the mainboard through a signal wire, and the mainboard receives temperature information sent by the temperature sensor and controls the on-off of the heating element. The dual-energy water heater in this application uses the gas as the owner, and the electric heat is supplementary, and electric heating device heats the water in the inner bag according to predetermineeing the temperature in advance, and during the use, the hot water of gas heating mixes with hot water in the inner bag, and hot water goes out water fast during the use, cold water is not extravagant, and is more energy-conserving, and leaving water temperature is stable, and the bathing is more comfortable, and required electric heating power is less.

Description

Double-energy water heater

Technical Field

The utility model belongs to the water heater field, in particular to dual-energy water heater.

Background

The gas water heater is also called as a gas water heater, and refers to a gas appliance which takes gas as fuel and transfers heat to cold water flowing through a heat exchanger in a combustion heating mode so as to achieve the purpose of preparing hot water. The gas water heater mainly comprises a box body, a low-voltage control display panel, a water inlet pipe, a water outlet pipe, a gas pipe, a burner, a heat exchanger, a main board, a fan, a smoke collecting hood, a smoke pipe, a valve body assembly and the like; the water inlet pipe and the water outlet pipe are respectively connected with two ends of the pipe body on the heat exchanger; the mainboard is controlling the whole water heater's working procedure through the valve body assembly, and the valve body assembly includes rivers flow sensor, pneumatic valve, micro-gap switch, wind pressure switch and ignition etc.. When the water heater is installed, valves are arranged on the water inlet pipe, the hot water pipe and the gas pipe.

The gas water heater has the advantages of sufficient hot water, quick heating, nonuse, long bathing time, low cost and the like in the using process, but after the water source is switched on, the main board detects and starts the burner with certain delay, so that the problem that more cold water is output from the water inlet pipe, the heat exchanger upper pipe body and the water outlet pipe at first is caused; in addition, when the gas water heater is closed and quickly opened, the water temperature rises too fast and the outlet water temperature is too high due to the fact that the water in the tube body of the burner is long in retention time; when the gas water heater is opened after the stay time is longer, the initial outlet water temperature is low, and the condition that the water temperature is suddenly cold and suddenly hot after the gas water heater is shut down is caused, so that the gas water heater is particularly inconvenient to use in winter. Aiming at the problem, in the prior art, the circulation treatment is carried out on cold water staying in a water outlet pipe and a heat exchanger pipe by arranging a circulation hot water pump, but a circulation water path has higher requirement on the installation environment, and the cold water cannot be mixed with the cold water and the hot water cannot be mixed with the stop water to reuse the water temperature to be mixed, and the mixture is purchased and installed to be higher even if the circulation water path is installed reluctantly.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is anticipated to provide a dual energy water heater to solve the gas heater among the prior art when using, because cold water on inlet tube, outlet pipe and the heat exchanger tube body should not directly use, need extravagant more cold water when leading to just using, shut down the problem that the heat was neglected to use once more.

The double-energy water heater comprises a gas water heater and an electric heating device, wherein the gas water heater comprises a main board and a water outlet pipe; the electric heating device comprises an inner container, and a hot water pipe, a heating element and a temperature sensor which are positioned in the inner container, wherein the water outlet end of the water outlet pipe is communicated with the inner container, and one end of the hot water pipe extends out of the bottom of the inner container; the heating element is connected with a power supply and an electric control switch; the temperature sensor is communicated with the mainboard through a signal wire, and the mainboard receives temperature information sent by the temperature sensor and controls the on-off of the heating element.

The working principle and the beneficial effects of the scheme are as follows: before the use, at the start-up state, the water in the inner container is heated to a set temperature in advance through the heating element, and the constant temperature state is kept. When hot water is used, the water outlet of the gas water heater is communicated with the inlet of the inner container, cold water at the front end of the gas water heater and hot water which is suddenly cooled and suddenly heated are mixed with the hot water in the inner container, and stable hot water is obtained under the assistance of electric heating.

The temperature sensor, the heating element, the hot water pipe and the water inlet are arranged in the inner container, the structure is compact, the size of the inner container is small, the change of the existing gas water heater is small, the combination with the existing gas water heater is convenient, and the product development cost and the production cost are reduced.

Further, the gas water heater comprises a box body, and the inner container and the temperature sensor are both located in the box body of the gas water heater. The inner container and the temperature sensor are arranged in the box body of the gas water heater, so that the safety is improved, and the structure of the dual-energy water heater is simpler.

Further, the inner container is coated with a heat-insulating layer. Through the arrangement of the heat preservation layer, heat exchange between the outside and water in the inner container is favorably reduced, and therefore energy loss is reduced.

Furthermore, an overtemperature protector is arranged on the inner container. Through the setting of overtemperature prote ware, when the temperature of the temperature in the inner bag exceeded safe temperature, the overtemperature prote ware can force to stop heating element to the heating of inner bag water, improves the security.

Further, the gas water heater comprises a heat exchanger, a smoke collecting cover, a smoke pipe and a water inlet pipe, wherein one end of the water inlet pipe penetrates through the smoke pipe and the smoke collecting cover and then is communicated with a pipe body of the heat exchanger. One end of the water inlet pipe firstly penetrates through the smoke pipe and the smoke collecting hood and then is communicated with the pipe body of the heat exchanger, so that when the dual-energy water heater is used, cold water in the water inlet pipe firstly exchanges heat with smoke in the smoke pipe and the smoke collecting hood and then flows through the pipe body of the heat exchanger, the utilization of heat of the smoke flowing through the smoke pipe and the smoke collecting hood is realized, the temperature of cold water in the water inlet pipe is improved, the use amount of fuel gas is reduced, and the waste of the fuel gas is reduced.

In addition, the electric heating device in the application can also be applied to a gas water heater with a circulating hot water pump, so that the bathing comfort is better, and the problem that water is suddenly cooled and suddenly heated when the machine is stopped for reuse is solved.

Drawings

Fig. 1 is a schematic structural view of a dual-energy water heater according to embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a dual-energy water heater according to embodiment 2 of the present invention;

fig. 3 is a schematic structural diagram of a dual-energy water heater in embodiment 3 of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a box body 1, a water inlet pipe 2, a flow sensor 3, a combustor 4, a heat exchanger 5, a smoke collecting hood 6, a fan 7, a main board 8, a signal line 9, an inner container 10, a temperature sensor 11, a hot water pipe 12, an electric heating pipe 13, a gas pipe 14, a gas valve 15, a heat insulation layer 16 and an over-temperature protector 17.

Example 1 is substantially as shown in figure 1: a dual-energy water heater comprises a gas water heater and an electric heating device, wherein the gas water heater comprises a box body 1, a low-voltage control display panel, a water inlet pipe 2, a water outlet pipe, a gas pipe 14, a burner 4, a heat exchanger 5, a main board 8, a fan 7, a smoke collecting hood 6, a smoke pipe, a valve body assembly and the like; the low-pressure control display panel is arranged on the box body 1, and the combustion chamber, the heat exchanger 5, the smoke collecting hood 6 and the smoke pipe are sequentially connected from bottom to top; one end of the water inlet pipe 2 is used for being connected with a tap water pipe, the water inlet pipe 2 is provided with a flow sensor 3, the flow sensor 3 is connected with a main board 8 through a signal line 9, and the other end of the water inlet pipe 2 is connected with one end of a pipe body on the heat exchanger 5; the other end of the tube body of the heat exchanger 5 is communicated with the water inlet end of the water outlet tube, and the water outlet tube is provided with a temperature sensor which is connected with the main board 8; one end of a gas pipe 14 is used for connecting gas, the other end of the gas pipe 14 is connected with a burner 4, a gas valve 15 is arranged on the gas pipe 14, and the gas valve 15 is connected with a main board 8 through a signal wire 9; the valve body assembly controls the working procedure of the whole water heater and comprises a water valve, an air valve, a microswitch, an igniter and the like. When the water heater is installed, valves are arranged on the water inlet pipe 2, the hot water pipe 12 and the gas pipe 14; the main board 8 controls the flow of the water inlet pipe 2 and the gas pipe 14.

The electric heating device is positioned in a box body 1 of the gas water heater, the electric heating device comprises an inner container 10, a hot water pipe 12, an electric heating pipe 13 (namely a heating element) and a temperature sensor 11, the hot water pipe 12, the electric heating pipe 13 and the temperature sensor 11 are positioned in the inner container 10, a heat insulation layer 16 is coated outside the inner container 10, a water inlet and a water outlet are formed in the bottom of the inner container 10, the water outlet end of a water outlet pipe of the gas water tank is connected with the water inlet of the inner container 10, and one end of the; the electric heating pipe 13 is connected with a power supply and an electric control switch; the temperature sensor 11 is communicated with the main board 8 through a signal wire 9, and the main board 8 receives temperature information sent by the temperature sensor 11 in the liner 10 and controls the on-off of the electric heating pipe 13.

The inner container 10 is used for containing water, and is electrically assisted to heat in advance and keep the temperature constant in a starting state. The heat preservation layer 16 is arranged outside the inner container 10, and heat exchange between the outside and water in the inner container 10 is facilitated to be reduced through the arrangement of the heat preservation layer 16, so that energy loss is reduced. The hot water pipe 12 in the inner bag 10 can be dismantled and linked, has the outlet pipe outer tube outside the inner bag 10 bottom to be used for fixed outlet pipe, demolishs the outlet pipe after, just can discharge incrustation scale and silt, and is energy-conserving healthy again for a long time.

Embodiment 2 is shown in fig. 2, which differs from embodiment 1 only in that: the inner container 10 is provided with an overtemperature protector 17; the safety of the dual-energy water heater is improved.

Embodiment 3 is shown in fig. 3, which differs from embodiment 2 only in that: one end of the water inlet pipe 2 is communicated with the pipe body of the heat exchanger 5 after passing through the smoke pipe and the smoke collecting hood 6. Because the water in the water inlet pipe 2 exchanges heat with the smoke in the smoke pipe and the smoke collecting hood 6, the use amount of fuel gas is reduced.

Taking example 3 as an example: and installing the dual-energy water heater according to the installation mode of the existing gas water heater. After the dual-energy water heater is installed, when the dual-energy water heater is used for the first time, a main power supply of the dual-energy water heater is started, a water inlet pipe 2 is connected with a tap water pipe, a flow sensor 3 on the water inlet pipe transmits flow information of the water inlet pipe 2 to a main board 8, after water passes through the main board 8, a fan 7 is controlled to be started by the main board 8, an igniter is controlled to ignite a burner 4, when a sensing needle feeds back the temperature in the burner 4 to the main board 8, and the main board 8 judges whether the igniter successfully ignites or not through information fed back by; after the ignition is successful, the heat generated by the burner 4 exchanges heat with cold water in the tube body of the heat exchanger 5, so as to improve the water temperature, and the heated water flows through the inner container 10 through the water outlet pipe, is mixed with hot water in the inner container 10 and then flows out of the hot water pipe 12; in the process, the temperature sensor on the water outlet pipe feeds back the temperature information of the water in the water outlet pipe to the main board 8, and the main board 8 controls the size of the fuel gas through the fuel gas valve 15 according to the comparison between the water temperature and the set temperature.

When the dual-energy water heater is used again, the water temperature of the low-voltage control display panel is adjusted through a manual adjustment mode or a factory self-setting mode, the main power supply of the dual-energy water heater is started, before bathing, the water temperature of the low-voltage control display panel is adjusted through the manual adjustment mode or the factory self-setting mode, after the adjustment is completed, the temperature sensor 11 in the inner container 10 feeds the temperature of the water in the inner container 10 back to the main board 8, and when the temperature is lower than a set temperature, the main board 8 controls the electric heating pipe 13 to heat the water in the inner container 10 until the set temperature is reached; then the water inlet pipe 2 is communicated with a tap water pipe through a water valve, and the first use state is repeated. It should be noted that: when water flowing from the water outlet pipe is mixed with water in the inner container 10, the temperature sensor 11 feeds the mixed water temperature back to the main board 8, and when the water temperature is lower than a preset temperature, the main board 8 controls the electric heating pipe 13 to heat the water in the inner container 10; when the mixing temperature is higher than the preset temperature, the main board 8 controls the electric heating tube 13 to stop working.

Except for special description, the gas water heater in the embodiment is only provided with a proper expansion of the box body 1, and other structures are consistent with those of the gas water heater in the prior art.

Claims

1. A dual-energy water heater comprises a gas water heater and an electric heating device, wherein the gas water heater comprises a main board and a water outlet pipe; the method is characterized in that: the electric heating device comprises an inner container, and a hot water pipe, a heating element and a temperature sensor which are positioned in the inner container, wherein the water outlet end of the water outlet pipe is communicated with the inner container, and one end of the hot water pipe extends out of the bottom of the inner container; the heating element is connected with a power supply and an electric control switch; the temperature sensor is communicated with the mainboard through a signal wire, and the mainboard receives temperature information sent by the temperature sensor and controls the on-off of the heating element.

2. A dual energy source water heater according to claim 1, wherein: the gas water heater comprises a box body, and the inner container and the temperature sensor are both positioned in the box body of the gas water heater.

3. A dual energy source water heater according to claim 2, wherein: the inner container is coated with a heat-insulating layer.

4. A dual energy source water heater according to claim 3, wherein: the inner container is provided with an overtemperature protector.

5. The dual-energy water heater according to any one of claims 1 to 4, wherein: the gas water heater comprises a heat exchanger, a smoke collecting hood, a smoke pipe and a water inlet pipe, wherein one end of the water inlet pipe penetrates through the smoke pipe and the smoke collecting hood and then is communicated with a pipe body of the heat exchanger.