Energy-saving stove furnace and energy-saving stove

Abstract

The present invention provides a furnace of an energy-saving stove, comprising: a water jacket and a tray; the water jacket comprises an outer shell having an inner cavity, a partition wall arranged in the inner cavity, and a burner mounting portion; the partition wall divides the inner cavity into a waste heat recovery chamber and a water storage chamber; the water storage chamber has a cold water inlet and a hot water outlet; the burner mounting portion is arranged in the waste heat recovery chamber and is close to the bottom of the waste heat recovery chamber; the waste heat recovery chamber has an opening at one end away from the burner mounting portion; the tray has a smoke inlet; the tray cover is arranged at the opening, and the smoke inlet faces the burner mounting portion; the flame generated by the burner of the energy-saving stove burning fuel can pass through the smoke inlet, and the smoke generated by the burner burning fuel can enter the waste heat recovery chamber through the smoke inlet. The present invention also provides an energy-saving stove. By adopting the present invention, the waste heat generated by the smoke entering the waste heat recovery chamber can be fully utilized to heat the water stored in the water storage chamber, thereby greatly improving the utilization rate of the waste heat.

Description

Technical Field

[0001] The invention relates to the field of stoves, in particular to a furnace of an energy-saving stove and an energy-saving stove. Background Art

[0002] In the process of cooking food, a large amount of waste heat is dissipated into the air in a general stove, resulting in a low utilization rate of the waste heat. Although some energy-saving stoves are equipped with a water tank in the furnace, the cold water in the water tank can be heated while cooking. However, the method of heating the cold water is generally to set a heat-conducting structure in the furnace, and transfer the heat to the water tank connected to the heat-conducting structure through the heated heat-conducting structure, thereby achieving the purpose of heating the cold water stored in the water tank. This energy-saving stove with a heat-conducting structure actually uses the heat generated by the combustion of fuel in the burner to directly heat the heat-conducting structure. This heating method not only has a low utilization rate of waste heat, but also reduces the heat required for cooking food, thereby wasting a lot of fuel. Summary of the invention

[0003] In view of this, the main purpose of the present invention is to provide a furnace of an energy-saving stove and an energy-saving stove that can improve the utilization rate of waste heat.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] In one aspect, the present invention provides a furnace of an energy-saving stove, comprising:

[0006] A water jacket, the water jacket comprising an outer shell having an inner cavity, a partition wall arranged in the inner cavity, and a burner mounting portion; the partition wall divides the inner cavity into a waste heat recovery cavity and a water storage cavity; the water storage cavity has a cold water inlet and a hot water outlet; the burner mounting portion is arranged in the waste heat recovery cavity and close to the bottom of the waste heat recovery cavity; the waste heat recovery cavity has an opening at one end away from the burner mounting portion;

[0007] A tray, wherein the tray has a smoke inlet; the tray cover is arranged at the opening, and the smoke inlet faces the burner mounting portion; the flame generated by the burner burning fuel of the energy-saving stove can pass through the smoke inlet, and the smoke generated by the burner burning fuel can enter the waste heat recovery chamber through the smoke inlet.

[0008] Further, the water storage chamber is arranged at the periphery of the waste heat recovery chamber; or, the water storage chamber is arranged at the periphery and bottom of the waste heat recovery chamber.

[0009] Furthermore, the water jacket is integrally formed.

[0010] Furthermore, the burner head mounting portion is a burner head fixing bracket.

[0011] Furthermore, a smoke outlet connected to the waste heat recovery chamber is formed on the water jacket; the smoke outlet is close to the cold water inlet.

[0012] Furthermore, the hot water outlet is arranged on the bottom wall of the water storage chamber; the water jacket also includes a hot water outlet pipe arranged in the water storage chamber, one end of the hot water outlet pipe passes through the hot water outlet, and the other end of the hot water outlet pipe is close to the top wall of the water storage chamber.

[0013] Furthermore, a sewage outlet is formed on the bottom wall of the water storage chamber.

[0014] Furthermore, the furnace also includes a heat storage component, and the heat storage component is sleeved in the tray so that the flame generated by the combustion of fuel in the burner head can be located in the space surrounded by the heat storage component.

[0015] Furthermore, the heat storage component is a reflective sheet or a metal heat storage net.

[0016] Another aspect of the present invention provides an energy-saving stove, which comprises a burner head and the above-mentioned furnace; the burner head is arranged on the burner head mounting portion.

[0017] Furthermore, the energy-saving stove also includes a temperature control device, and the temperature control device includes:

[0018] A temperature probe, wherein the temperature probe is arranged at the hot water outlet;

[0019] a control element, the control element being electrically connected to the temperature probe;

[0020] An electromagnetic switch valve is arranged at the cold water inlet and is electrically connected to the control element.

[0021] The present invention provides a furnace of an energy-saving stove and an energy-saving stove. By dividing a water jacket into a waste heat recovery chamber and a water storage chamber, and arranging a tray cover at the opening of the waste heat recovery chamber, a relatively closed space can be formed in the waste heat recovery chamber, thereby fully utilizing the waste heat generated by the smoke entering the waste heat recovery chamber to heat the water stored in the water storage chamber, thereby greatly improving the utilization rate of the waste heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 An exploded view of a furnace provided in one embodiment of the present invention, showing a furnace head;

[0023] Figure 2 for Figure 1 The assembly diagram of the furnace and the furnace head shown in the figure, part of the structure is a cross-section view;

[0024] Figure 3A schematic structural diagram of an energy-saving stove provided in one embodiment of the present invention.

[0025] Figure numerals: furnace 100; water jacket 1; inner cavity 1a; waste heat recovery chamber 1b; water storage chamber 1c; opening 1d; cold water inlet 1e; hot water outlet 1f; flue gas outlet 1g; sewage outlet 1h; outer shell 11; partition wall 12; hot water outlet pipe 14; burner head mounting part 15; exhaust pipe 16; tray 2; flue gas inlet 2a; heat storage part 3; burner head 200. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the technical features in the embodiments may be combined with each other, and the detailed descriptions in the specific implementation methods should be understood as explanations of the purpose of the present invention and should not be regarded as improper limitations on the present invention.

[0028] In the description of this application, the "top" and "bottom" positions or positional relationships are based on the attached Figure 2 The orientation or position relationship shown, where "height" is Figure 2 It should be understood that these directional terms are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.

[0029] On the one hand, the present application provides a furnace of an energy-saving stove, see Figure 1 and Figure 2 The furnace 100 includes a water jacket 1 and a tray 2, wherein the water jacket 1 includes an outer shell 11, a partition wall 12 and a burner mounting portion 15. The outer shell 11 has an inner cavity 1a, and the partition wall 12 is arranged in the inner cavity 1a, and divides the inner cavity 1a into a waste heat recovery chamber 1b and a water storage chamber 1c, and the water storage chamber 1c has a cold water inlet 1e and a hot water outlet 1f. The burner mounting portion 15 is arranged in the waste heat recovery chamber 1b, and is close to the bottom of the waste heat recovery chamber 1b, and the waste heat recovery chamber 1b has an opening 1d at one end away from the burner mounting portion 15. The tray 2 has a smoke inlet 2a, and the tray 2 cover is arranged at the opening 1d, and the smoke inlet 2a faces the burner mounting portion 15, and the flame generated by the burner 200 of the energy-saving stove burning fuel can pass through the smoke inlet 2a, and the smoke generated by the burner 200 burning fuel can enter the waste heat recovery chamber 1b through the smoke inlet 2a.

[0030] Specifically, the burner mounting portion 15 is used to mount the burner 200, and the outer dimensions of the smoke inlet 2a are larger than the outer dimensions of the burner 200, so that the flame generated by the installed burner 200 burning fuel can pass through the smoke inlet 2a, and the smoke generated by the burner 200 burning fuel can enter the waste heat recovery chamber 1b through the smoke inlet 2a. When using the energy-saving stove, the wok and other kitchen utensils are mounted on the tray 2, and the heat generated by the burner 200 burning fuel is used to heat the kitchen utensils. Since the wok and other kitchen utensils mounted on the tray 2 can block the smoke from emitting outward to a certain extent, a large amount of smoke can enter the waste heat recovery chamber 1b through the smoke inlet 2a. At the same time, the tray 2 covering the opening 1d of the water jacket 1 can further prevent the smoke entering the waste heat recovery chamber 1b from emitting outward again, that is, the existence of the tray 2 allows a relatively closed space to be formed in the waste heat recovery chamber 1b, thereby making full use of the waste heat generated by the smoke in the waste heat recovery chamber 1b to heat the water stored in the water storage chamber 1c. Generally speaking, the temperature of the flue gas generated by the energy-saving stove during use is above 600°C. Therefore, the furnace 100 of this embodiment can quickly heat the cold water entering the water storage chamber 1c from the cold water inlet 1e. A single stove can produce about 70L of 70°C hot water per hour, and the waste heat recovery efficiency reaches more than 20%. This can greatly improve the utilization rate of waste heat and save a lot of water heating costs for the kitchen.

[0031] The water jacket 1 of the present embodiment can be manufactured by welding or integrally formed. However, welding has many welds and the quality is not easy to guarantee. In particular, during the repeated heating of the water jacket 1, weld cracks may occur. Therefore, it is preferred to adopt an integrally formed processing method, such as manufacturing the water jacket 1 by mold opening.

[0032] Please continue reading Figure 2 The water storage chamber 1c separated by the partition wall 12 of this embodiment is located at the periphery and bottom of the waste heat recovery chamber 1b, thereby greatly increasing the capacity of the waste heat recovery chamber 1b so as to store more water, and also allowing the water in the water storage chamber 1c to be fully heated, thereby increasing the heating speed of the water. It is understandable that in another embodiment, the water storage chamber 1c may also be only arranged at the periphery of the waste heat recovery chamber 1b, or the water storage chamber 1c may also be only arranged on one side of the waste heat recovery chamber 1b, as long as the waste heat in the waste heat recovery chamber 1b can heat the water in the water storage chamber 1c.

[0033] Please continue reading Figure 2 The burner head mounting portion 15 is a burner head fixing frame.

[0034] Specifically, in order to ensure that the heat generated by the burner 200 burning fuel can fully heat the kitchenware, it is necessary to ensure that the setting height of the burner 200 can meet the use requirements of the energy-saving stove. Generally speaking, the burner 200 can be directly fixed on the bottom wall of the furnace 100, but the height of the burner 200 itself is not high. If the burner 200 is directly fixed on the bottom wall of the furnace 100, the height of the water jacket 1 also needs to be reduced accordingly, which will result in a relatively small capacity of the water storage chamber 1c. Therefore, in order to maximize the capacity of the water storage chamber 1c, the burner mounting portion 15 is designed in this embodiment as a fixed frame with a certain height, and the fixed frame is set in the waste heat recovery chamber 1b, thereby ensuring that the setting height of the burner 200 can meet the use requirements of the energy-saving stove, and the height of the water jacket 1 can be increased, thereby increasing the capacity of the water storage chamber 1c.

[0035] Please continue reading Figure 2 In this embodiment, a flue gas outlet 1g is formed on the water jacket 1 and is connected to the waste heat recovery chamber 1b; the flue gas outlet 1g is close to the cold water inlet 1e.

[0036] Specifically, the smoke outlet 1g of this embodiment is arranged at the bottom of the water jacket 1, and the tail gas pipe 16 is connected to the smoke outlet 1g, so that the smoke can discharge the excess smoke in the waste heat recovery chamber 1b. In addition, since the waste heat in the smoke is largely absorbed in the process of heating the cold water entering the water storage chamber 1c, the temperature of the discharged smoke can be reduced to below 150°C, so that the temperature around the chef can be significantly reduced by 3 to 5°C during the cooking process, thereby greatly improving the chef's working environment. Furthermore, since the temperature of the water near the cold water inlet 1e is lower than the temperature of the water at other positions, the smoke outlet 1g is arranged at a position close to the cold water inlet 1e, so that the temperature of the smoke discharged from the tail gas pipe 16 can be reduced more quickly.

[0037] Please continue reading Figure 2 In this embodiment, the hot water outlet 1f is arranged on the bottom wall of the water storage chamber 1c. The water jacket 1 also includes a hot water outlet pipe 14 arranged in the water storage chamber 1c. One end of the hot water outlet pipe 14 passes through the hot water outlet 1f, and the other end of the hot water outlet pipe 14 is close to the top wall of the water storage chamber 1c.

[0038] Specifically, the main function of the hot water outlet pipe 14 is to lead the hot water obtained after heating to the outside of the water storage chamber 1c, and the purpose of setting the end of the hot water outlet pipe 14 away from the hot water outlet 1f at a position close to the top wall of the water storage chamber 1c is that when the water level in the water storage chamber 1c is lower than the end face of the end of the hot water outlet pipe 14 away from the hot water outlet 1f, the water in the water storage chamber 1c cannot flow out from the hot water outlet 1f, that is, a certain amount of water is always stored in the water storage chamber 1c, thereby preventing the residual heat in the flue gas from drying up the water jacket 1 and damaging the water jacket 1 after the water in the water storage chamber 1c is emptied. In another embodiment, the hot water outlet pipe 14 may not be set, for example, the hot water outlet 1f may be set on the side wall of the water storage chamber 1c and at a certain height from the bottom of the water storage chamber 1c, thereby also playing a role in preventing dry burning.

[0039] Please continue reading Figure 1 Since the water in the water storage chamber 1c cannot be drained through the hot water outlet 1f of the present embodiment, a drain outlet 1h is further provided on the bottom wall of the water storage chamber 1c of the present embodiment so that the water accumulated in the water storage chamber 1c can be drained through the drain outlet 1h when needed, for example, when the energy-saving stove is not used for a long time.

[0040] Please continue reading Figure 1 and Figure 2 The furnace 100 of this embodiment further includes a heat storage member 3 , which is sleeved in the tray 2 so that the flame generated by the burner 200 burning the fuel can be located in the space surrounded by the heat storage member 3 .

[0041] Specifically, the heat storage element 3 can store heat during the process of burning fuel in the burner head 200 to avoid heat loss. The heat storage element 3 can be a reflector or a metal heat storage net. However, the reflector is generally made of cast iron and has a poor heat storage effect. The use of a metal heat storage net can keep the furnace 100 in a red-hot state and has a good heat storage effect. Therefore, it is preferred to use a metal heat storage net, and more preferably, a honeycomb metal heat storage net can be used.

[0042] Another aspect of the present application provides an energy-saving stove. Figure 2 and Figure 3 The energy-saving stove includes a burner head 200 and the furnace chamber 100 described above, and the burner head 200 is arranged on the burner head mounting portion 15 .

[0043] General stoves make a lot of noise when working. Although the national standard is below 80 decibels, the noise of most stoves on the market far exceeds the standard. When chefs communicate in the kitchen, they need to shout. Therefore, the stove head 200 of this embodiment can be a silent stove head. The silent stove head is used in conjunction with the low-noise fan of the energy-saving stove (not shown in the figure), which can control the noise to about 65 decibels, thereby greatly reducing the noise in the kitchen and not affecting the communication between chefs.

[0044] Furthermore, the energy-saving stove of this embodiment further includes a temperature control device (not shown), which includes a temperature probe, a control element and an electromagnetic switch valve. The temperature probe is arranged at the hot water outlet 1f, the control element is electrically connected to the temperature probe, and the electromagnetic switch valve is arranged at the cold water inlet 1e and is electrically connected to the control element.

[0045] Specifically, the temperature probe is mainly used to detect the water temperature at the hot water outlet 1f, and transmit the detected water temperature to the control element in the form of a temperature signal. The control element is used to control the opening and closing of the electromagnetic switch valve according to the set water temperature. For example, the set water temperature of the control element can be set at 60°C. When the temperature signal received by the control element indicates that the current water temperature at the hot water outlet 1f is lower than 60°C, the control element controls the electromagnetic switch valve to close the cold water inlet 1e to prevent cold water from entering the water storage chamber 1c; when the temperature signal received by the control element indicates that the current water temperature at the hot water outlet 1f is higher than 60°C, the control element controls the electromagnetic switch valve to open the cold water inlet 1e so that cold water can enter the water storage chamber 1c. It can be understood that the set water temperature is not limited to being set at 60°C, and the specific set water temperature can be adjusted as needed to meet different usage requirements.

[0046] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A furnace of an energy-saving stove, characterized in that: include: A water jacket, the water jacket comprising an outer shell having an inner cavity, a partition wall arranged in the inner cavity, and a burner mounting portion; the partition wall divides the inner cavity into a waste heat recovery cavity and a water storage cavity; the water storage cavity has a cold water inlet and a hot water outlet; the burner mounting portion is used to mount the burner of the energy-saving stove, the burner mounting portion is arranged in the waste heat recovery cavity and is close to the bottom of the waste heat recovery cavity; the waste heat recovery cavity has an opening at one end away from the burner mounting portion; A tray, wherein the tray has a smoke inlet; the tray cover is arranged at the opening so that a relatively closed space is formed in the waste heat recovery chamber, and the smoke inlet faces the burner mounting portion; the outer dimensions of the smoke inlet are larger than the outer dimensions of the burner, so that the flame generated by the burner burning fuel can pass through the smoke inlet, and the smoke generated by the burner burning fuel enters the waste heat recovery chamber through the smoke inlet, and the smoke in the waste heat recovery chamber is prevented from being emitted outward by the tray; A heat storage member is sleeved in the tray so that the flame passing through the smoke inlet is located in the space surrounded by the heat storage member, thereby storing heat during the process of burning fuel in the burner.

2. The furnace according to claim 1, characterized in that: The water storage chamber is arranged at the periphery of the waste heat recovery chamber; or, the water storage chamber is arranged at the periphery and bottom of the waste heat recovery chamber.

3. The furnace according to claim 1 or 2, characterized in that: The water jacket is integrally formed.

4. The furnace according to claim 1 or 2, characterized in that: The burner head mounting portion is a burner head fixing frame.

5. The furnace according to claim 1 or 2, characterized in that: The water jacket is provided with a smoke outlet which is in communication with the waste heat recovery chamber; the smoke outlet is close to the cold water inlet.

6. The furnace according to claim 1 or 2, characterized in that: The hot water outlet is arranged on the bottom wall of the water storage chamber; the water jacket also includes a hot water outlet pipe arranged in the water storage chamber, one end of the hot water outlet pipe passes through the hot water outlet, and the other end of the hot water outlet pipe is close to the top wall of the water storage chamber.

7. The furnace according to claim 6, characterized in that: A sewage outlet is formed on the bottom wall of the water storage cavity.

8. The furnace according to claim 1 or 2, characterized in that: The heat storage component is a reflector or a metal heat storage net.

9. An energy-saving stove, characterized in that: The energy-saving stove comprises a burner and the furnace described in claims 1 to 8; the burner is arranged on the burner mounting portion.

10. The energy-saving stove according to claim 9, characterized in that: The energy-saving stove also includes a temperature control device, which includes: A temperature probe, wherein the temperature probe is arranged at the hot water outlet; a control element, the control element being electrically connected to the temperature probe; An electromagnetic switch valve is arranged at the cold water inlet and is electrically connected to the control element.

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