Gas-electricity hybrid combustion equipment

Abstract

The utility model discloses gas-electricity hybrid combustion equipment which comprises a control module, a gas heating module, an electric heating module and a water temperature detection module, wherein the gas heating module, the electric heating module and the water temperature detection module are electrically connected with the control module. The water temperature detection module is used for detecting the water inlet temperature T1 and sending the information of the water inlet temperature T1 to the control module; and the control module is used for determining to output an electric heating signal or a gas heating signal according to a difference value between a set temperature and the water inlet temperature T1 so as to control the corresponding electric heating module or gas heating module to heat.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion equipment, in particular to a fuel-electric hybrid combustion equipment. Background Art

[0002] At present, water heaters are mainly gas water heaters and electric water heaters. Gas water heaters only have gas heating function, while electric water heaters only have electric heating function. When using gas water heaters in winter, if there is insufficient gas, gas outage or the gas line is not opened, it is easy to cause the internal pipes of the water heater to freeze and crack. In summer, the water temperature is lower than in winter. When the outlet water temperature T2 required by the user is close to the tap water inlet temperature T1, only low-power heating is required. At this time, gas heating obviously consumes more energy than electric heating and is not environmentally friendly. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a fuel-electric hybrid combustion device which is more energy-efficient and prevents water pipes from freezing and cracking.

[0004] According to the embodiment of the utility model, the fuel-electric hybrid combustion device includes a control module and a gas heating module, an electric heating module and a water temperature detection module electrically connected to the control module respectively; the water temperature detection module is used to detect the water inlet temperature T1 and send the water inlet temperature T1 information to the control module; the control module is used to determine the output electric heating signal or the gas heating signal according to the difference between the set temperature and the water inlet temperature T1 to control the corresponding electric heating module or the gas heating module for heating.

[0005] According to some embodiments of the present invention, an energy storage module is further included, and the energy storage module is electrically connected to the control module, the gas heating module and the electric heating module respectively.

[0006] According to some embodiments of the utility model, a first temperature and a second temperature are preset in the control module, and the water temperature detection module is also used to detect the water outlet temperature T2. The control module controls the electric heating module to heat, and the electric heating is stopped after the water outlet temperature T2 reaches the first temperature; when the water outlet temperature T2 reaches the second temperature, the control module controls the electric heating module to work again.

[0007] According to some embodiments of the utility model, the control module includes a controller and a power storage control device, the controller is electrically connected to the gas heating module, the electric heating module and the water temperature detection module, respectively, the water temperature detection module sends the water inlet temperature T1 information to the controller, and the controller determines the output electric heating signal or gas heating signal according to the difference between the set temperature and the water inlet temperature T1 to control the corresponding electric heating module or the gas heating module to heat; the power storage control device is electrically connected to the gas heating module, the electric heating module and the water temperature detection module to supply power respectively, and the first temperature and the second temperature are respectively preset in the power storage control device, the power storage control device can control the electric heating module to heat, and the electric heating is stopped after the water outlet temperature T2 reaches the first temperature; when the water outlet temperature T2 reaches the second temperature, the power storage control device controls the electric heating module to work again.

[0008] According to some embodiments of the utility model, a heat exchanger is included, the gas heating module includes a combustion chamber and a burner arranged in the combustion chamber, and the combustion chamber is located below the heat exchanger; the electric heating module includes an electric heating body, and the electric heating body is arranged on the water outlet pipe of the heat exchanger.

[0009] According to some embodiments of the present invention, the electric heating module includes a temperature limiter, and the temperature limiter is electrically connected to the electric heating body.

[0010] According to some embodiments of the present invention, the water temperature detection module includes an inlet water temperature sensor and an outlet water temperature sensor, the inlet water temperature sensor is arranged on the tap water inlet pipe, and the outlet water temperature sensor is arranged at the end of the outlet pipe of the heat exchanger.

[0011] According to some embodiments of the utility model, a water pump is further included, and the water inlet temperature sensor is arranged on the water pump to detect the water inlet temperature in the water inlet pipe. One end of the water pump is connected to the tap water inlet pipe, and the other end of the water pump is connected to the water inlet pipe of the heat exchanger. The tap water inlet pipe is provided with a branch water pipe, and the branch water pipe is connected to the water outlet pipe of the heat exchanger.

[0012] According to some embodiments of the present utility model, a one-way valve is provided on the branch water pipe.

[0013] According to some embodiments of the utility model, a water flow sensor is provided on the tap water inlet pipe.

[0014] The fuel-electric hybrid combustion device according to the embodiment of the utility model has at least the following beneficial effects: the control module can determine the output electric heating signal or the gas heating signal according to the difference between the set temperature and the water inlet temperature T1. In summer, the set temperature is generally close to the water inlet temperature T1, and the difference between the two is small, so low-power heating is required. At this time, the control module outputs an electric heating signal to control the operation of the electric heating module, which is more energy-efficient than gas heating. In winter, if there is insufficient gas, gas is cut off, or the gas line is not opened, the internal pipes of the water heater are prone to freezing and cracking. At this time, controlling the operation of the electric heating module can prevent the pipes from freezing and cracking.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings;

[0017] Figure 1 It is a structural diagram of a fuel-electric hybrid combustion device;

[0018] Figure 2 It is the working flow chart of the fuel-electric hybrid combustion equipment. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0020] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] Reference Figure 1 and Figure 2 , is an embodiment of a fuel-electric hybrid combustion device of the utility model, comprising a control module and a gas heating module, an electric heating module and a water temperature detection module electrically connected to the control module respectively; the water temperature detection module is used to detect the water inlet temperature T1 and send the water inlet temperature T1 information to the control module; the control module is used to determine the output electric heating signal or gas heating signal according to the difference between the set temperature and the water inlet temperature T1 to control the corresponding electric heating module or gas heating module to heat. The set temperature refers to the outlet water temperature set by the user when using the hot water device. In summer, the set temperature required by the user is generally close to the water inlet temperature T1, and the difference between the two is small, and low-power heating is required. At this time, the control module outputs an electric heating signal to control the electric heating module to work, which is more energy-saving than gas heating; when the difference between the set temperature and the water inlet temperature T1 is large, such as when the difference is greater than 3 degrees Celsius, a larger heating power is required, and the control module controls the gas heating module to work. In winter, if there is insufficient gas, gas is cut off or the gas line is not opened, the water pipe is easy to freeze and crack. At this time, controlling the electric heating module to work can prevent the water pipe from freezing and cracking.

[0023] In some embodiments, an energy storage module is also included, such as a rechargeable lithium battery. The energy storage module is electrically connected to the control module, the gas heating module and the electric heating module respectively. When a power outage occurs, the energy storage module can supply power to these modules. The control module and the energy storage module are independent of each other. The energy storage module only serves to supply power, and the control module serves to determine the difference between the set temperature and the inlet water temperature T1 to control the electric heating or gas heating.

[0024] like Figure 2 , further, the control module is preset with a first temperature and a second temperature, the first temperature is greater than the second temperature, the water temperature detection module is also used to detect the water outlet temperature T2, and the control module controls the electric heating module to heat; the control module here generally uses a main control MCU chip, which has storage and comparison functions, stores the user's set temperature, preset difference, preset first temperature, and second temperature, and then compares the difference between the inlet water temperature T1 and the set temperature with the preset difference. When the difference is not greater than the preset difference, it means that the inlet water temperature T1 is close to the set temperature, and the electric heating module is controlled to work, otherwise the gas heating module is controlled to work. The main control MCU chip can also compare the current outlet water temperature T2 with the preset first temperature. When the outlet water temperature T2 reaches the first temperature, the electric heating module is controlled to stop electric heating. When the outlet water temperature T2 reaches the lower second temperature, the control module controls the electric heating module to work again. That is, the electric heating module heats the water in the outlet pipe of the heat exchanger 20 to the set first temperature point and then stops heating. Then, when the natural temperature drops to a certain low temperature, such as the second temperature point, the electric heating module is started again, and the cycle is repeated in sequence, so that the pipeline will not freeze or crack within a certain period of time.

[0025] In another embodiment, the control module includes a controller 11 and a power storage control device 12. The controller 11 here is similar to the main control MCU chip in the above embodiment, and both have storage and comparison functions. The controller 11 is electrically connected to the gas heating module, the electric heating module and the water temperature detection module respectively. The water temperature detection module sends the inlet water temperature T1 information to the controller 11. The controller 11 determines the output electric heating signal or gas heating signal according to the difference between the set temperature and the inlet water temperature T1 to control the corresponding electric heating module or gas heating module to heat. In addition to the storage and comparison functions, the power storage control device 12 here also has the energy storage power supply function. The power storage control device 12 is electrically connected to the gas heating module, the electric heating module and the water temperature detection module to supply power respectively, and the first temperature and the second temperature are preset in the power storage control device 12 respectively. The power storage control device 12 can control the electric heating module to heat, and the electric heating is stopped after the outlet water temperature T2 reaches the first temperature; when the outlet water temperature T2 reaches the second temperature, the power storage control device 12 controls the electric heating module to work again; that is, the control module includes two parts, one part is the controller 11 used to select electric heating or gas heating according to the inlet water temperature T1 and the set temperature, and the other part is the power storage control device 12 with energy storage power supply function, which is mainly used in winter, by controlling the start and stop of the electric heating module to avoid freezing and cracking of the pipeline, which is more energy-saving than continuous heating with gas. In this way, the heating mode is mainly controlled by the controller 11 in summer, and the electric heating state is mainly controlled by the power storage control device 12 in winter. When one of the controllers 11 fails, it will not affect the normal operation of the other controller 11, which is convenient for replacement and maintenance.

[0026] like Figure 1 , including a heat exchanger 20, the gas heating module includes a combustion chamber 21 and a burner arranged in the combustion chamber 21, and the combustion chamber 21 is located below the heat exchanger 20; the electric heating module includes an electric heating body 22, and the electric heating body 22 is arranged on the water outlet pipe of the heat exchanger 20.

[0027] Furthermore, the electric heating module includes a temperature limiter 23, which is electrically connected to the electric heating body 22. When the temperature of the electric heating body 22 is too high, the temperature limiter 23 effectively limits the temperature to avoid damage.

[0028] Furthermore, the water temperature detection module includes an inlet water temperature sensor and an outlet water temperature sensor 32. The inlet water temperature sensor is arranged on the tap water inlet pipe to detect the inlet water temperature T1, and the outlet water temperature sensor 32 is arranged at the end of the outlet pipe of the heat exchanger 20 to detect the outlet water temperature T2.

[0029] It also includes a water pump 40, a water inlet temperature sensor is arranged on the water pump to detect the water inlet temperature in the tap water inlet pipe, one end of the water pump 40 is connected to the tap water inlet pipe, and the other end of the water pump 40 is connected to the water inlet pipe of the heat exchanger 20, a branch water pipe 41 is arranged on the tap water inlet pipe, the branch water pipe 41 is connected to the outlet pipe of the heat exchanger 20, and a one-way valve 42 is arranged on the branch water pipe 41 to control the one-way flow of cold water into the outlet pipe, and the cold and hot water are mixed to reach a suitable temperature. A water flow sensor 43 is arranged on the tap water inlet pipe to detect the water inlet state. When water inlet is detected, the control module controls the electric heating module or the gas heating module to work according to the difference between the water inlet temperature T1 and the set temperature.

[0030] It is easy for those skilled in the art to understand that the above preferred embodiments can be freely combined and superimposed without conflict.

[0031] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A fuel-electric hybrid combustion device, characterized in that: include: A control module and a gas heating module, an electric heating module and a water temperature detection module electrically connected to the control module respectively; The water temperature detection module is used to detect the water inlet temperature T1 and the water outlet temperature T2, and send the water inlet temperature T1 information and the water outlet temperature T2 information to the control module; The control module comprises a controller (11) and a power storage control device (12), wherein the controller (11) is electrically connected to the gas heating module, the electric heating module and the water temperature detection module respectively, and the water temperature detection module sends the water inlet temperature T1 information to the controller (11), and the controller (11) determines the output electric heating signal or gas heating signal according to the difference between the set temperature and the water inlet temperature T1 to control the corresponding electric heating module or the gas heating module to perform heating; the power storage control device (12) is electrically connected to the gas heating module, the electric heating module and the water temperature detection module respectively to supply power respectively, and a first temperature and a second temperature are preset in the power storage control device (12), and the power storage control device (12) can control the electric heating module to heat, and the electric heating is stopped when the water outlet temperature T2 reaches the first temperature; when the water outlet temperature T2 reaches the second temperature, the power storage control device (12) controls the electric heating module to work again.

2. The fuel-electric hybrid combustion device according to claim 1, characterized in that: It also includes an energy storage module, which is electrically connected to the control module, the gas heating module and the electric heating module respectively.

3. The fuel-electric hybrid combustion device according to claim 1, characterized in that: It comprises a heat exchanger (20), wherein the gas heating module comprises a combustion chamber (21) and a burner arranged in the combustion chamber (21), and the combustion chamber (21) is located below the heat exchanger (20); the electric heating module comprises an electric heating body (22), and the electric heating body (22) is arranged on the water outlet pipe of the heat exchanger (20).

4. The fuel-electric hybrid combustion device according to claim 3, characterized in that: The electric heating module comprises a temperature limiter (23), and the temperature limiter (23) is electrically connected to the electric heating body (22).

5. The fuel-electric hybrid combustion device according to claim 3, characterized in that: The water temperature detection module comprises a water inlet temperature sensor and a water outlet temperature sensor (32), wherein the water inlet temperature sensor is arranged on a tap water inlet pipe, and the water outlet temperature sensor (32) is arranged at the end of a water outlet pipe of the heat exchanger (20).

6. The fuel-electric hybrid combustion device according to claim 5, characterized in that: It also includes a water pump (40), wherein the water inlet temperature sensor is arranged on the water pump (40) to detect the water inlet temperature in the tap water inlet pipe, one end of the water pump (40) is connected to the tap water inlet pipe, and the other end of the water pump (40) is connected to the water inlet pipe of the heat exchanger (20), and a branch water pipe (41) is arranged on the tap water inlet pipe, and the branch water pipe (41) is connected to the water outlet pipe of the heat exchanger (20).

7. The fuel-electric hybrid combustion device according to claim 6, characterized in that: The branch water pipe (41) is provided with a one-way valve (42).

8. The fuel-electric hybrid combustion device according to claim 6, characterized in that: The tap water inlet pipe is provided with a water flow sensor (43).

Images