Kitchen ware waste heat recycling system
By designing a kitchen waste heat recovery and utilization system with a hollow stove basin and temperature monitoring system, the system achieves efficient conversion and utilization of flame waste heat, solves the problem of low utilization rate of traditional kitchen waste heat, and realizes efficient energy utilization and environmentally friendly heating.
Patent Information
- Application Number
- CN202520331541.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Traditional kitchen appliances have low energy efficiency, and waste heat is lost through ventilation or radiation. Current technologies have a waste heat utilization rate of less than 15%-40%. How can we improve the utilization rate of waste heat from kitchen appliances?
Design a kitchen waste heat recovery and utilization system including a hollow stove basin, a water tank, a temperature monitor, a solenoid valve, and a water pump. The solenoid valve and water pump are controlled by the temperature monitor in the hollow stove basin to achieve efficient conversion and utilization of waste heat. The system also includes components such as radiator components, a hot air curtain device, a dishwashing sink, and a washbasin.
It achieves efficient utilization of waste heat from flames, with a utilization rate of over 80%, solving the problems of energy waste and environmental emissions, and providing hot water supply and space heating.
Smart Images

Figure CN223782907U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen waste heat recovery and utilization technology, and in particular to a kitchen waste heat recovery and utilization system. Background Technology
[0002] The building sector accounts for approximately 30% of global energy consumption, with commercial and residential kitchens forming a significant portion. Traditional kitchen appliances (such as gas stoves and ovens) have an energy utilization rate of only 15%-40%, with a substantial amount of waste heat lost through exhaust or radiation. Waste heat recovery technology for kitchen appliances is a key pathway to improving energy efficiency and reducing carbon emissions. Current technologies can only utilize gas-liquid or gas-gas heat exchange to preheat incoming water or extract a portion of the calorific value from flue gas for space heating, achieving a maximum waste heat utilization rate of only 15%-40%.
[0003] In conclusion, how to design a device that maximizes the utilization of waste heat from kitchen utensils is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is to provide a kitchen waste heat recovery and utilization system, including: a hollow stove basin, a water tank, a temperature monitor, a solenoid valve, and a water pump. The hollow stove basin has a sealed cavity, and an outlet and an inlet are provided on the hollow stove basin to communicate with the sealed cavity. The water tank is connected to the outlet through a first pipe and to the inlet through a second pipe. The temperature monitor is installed in the sealed cavity and is used to monitor the cavity temperature in real time. The solenoid valve is installed on the first pipe and electrically connected to the temperature monitor. The water pump is installed on the first pipe and located between the solenoid valve and the water tank. The temperature monitor is configured to open the solenoid valve and start the water pump when the cavity temperature reaches a preset threshold.
[0005] Furthermore, the waste heat recovery system also includes a radiator assembly, which forms a circulation loop with the water tank through a third pipe and a fourth pipe.
[0006] Furthermore, the waste heat recovery and utilization system also includes a hot air curtain device, which is connected to the water tank through a fifth pipe and a sixth pipe.
[0007] Furthermore, the waste heat recovery system also includes a dishwashing sink, which is connected to the water tank via a seventh pipe.
[0008] Furthermore, the waste heat recovery system also includes a washbasin, which is connected to the water tank via an eighth pipe.
[0009] This invention replaces the original single-layer kitchen stove basin with a double-layered hollow design. The outer layer of the basin has water or air inlets and outlets, allowing excess heat to be converted into usable energy and stored. This provides both hot water supply and space heating for businesses; it also fully utilizes the heat energy of the flame, maximizing over 80% of its residual value, thus solving problems such as excessive energy waste, high production costs, and failure to meet environmental emission standards. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0011] Figure 1 This is a schematic diagram of one embodiment of the kitchen waste heat recovery and utilization system of this utility model;
[0012] Figure 2 This is a cross-sectional view of the hollow furnace basin described in this utility model;
[0013] Figure 3 This is a schematic diagram of one embodiment of the kitchen waste heat recovery and utilization system of this utility model;
[0014] Figure 4 This is a schematic diagram of one embodiment of the kitchen waste heat recovery and utilization system of this utility model;
[0015] Figure 5 This is a schematic diagram of one embodiment of the kitchen waste heat recovery and utilization system of this utility model;
[0016] Figure 6 This is a schematic diagram of one embodiment of the kitchen waste heat recovery and utilization system of this utility model.
[0017] Explanation of icon numbers:
[0018]
[0019] Detailed Implementation
[0020] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0022] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "several" or "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0025] This utility model proposes a kitchen waste heat recovery and utilization system, aiming to design a device for high utilization of kitchen waste heat.
[0026] The waste heat recovery and utilization system for kitchen utensils proposed in this utility model will be described below in specific embodiments:
[0027] Example 1:
[0028] A waste heat recovery system for kitchen utensils, such as Figure 1 , Figure 2 As shown, the system includes: a hollow furnace basin 10, a water tank 20, a temperature monitor, a solenoid valve 30, and a water pump 40. The hollow furnace basin 10 has a sealed cavity 11, and an outlet 12 and an inlet 13 communicating with the sealed cavity 11 are provided on the hollow furnace basin 10. The water tank 20 is connected to the outlet 12 via a first pipe and to the inlet 13 via a second pipe. The temperature monitor is installed inside the sealed cavity 11 and is used to monitor the cavity temperature in real time. The solenoid valve 30 is installed on the first pipe and electrically connected to the temperature monitor. The water pump 40 is installed on the first pipe and located between the solenoid valve 30 and the water tank 20. The temperature monitor is configured to open the solenoid valve 30 and start the water pump 40 when the cavity temperature reaches a preset threshold.
[0029] Specifically, the hollow stove basin 10 is a double-layered hollow design, resembling a basin in appearance. A circular hole is provided at the bottom of the basin for hanging burners made of oil, gas, or other fuels. Hanging slots or fittings for connection to kitchen appliances and stovetops are provided at the top (and possibly the bottom and sides) of the basin.
[0030] Furthermore, the waste heat recovery system also includes a radiator assembly 50, which forms a circulation loop with the water tank 20 through a third pipe and a fourth pipe, and a first circulation pump is installed on the third pipe.
[0031] Furthermore, the waste heat recovery and utilization system also includes a hot air curtain device 60, which is connected to the water tank 20 through a fifth pipe and a sixth pipe. The fifth pipe is equipped with a flow regulating valve and a second circulation pump.
[0032] Furthermore, the waste heat recovery system also includes a dishwashing sink 70, which is connected to the water tank 20 via a seventh pipe, and a first water distribution valve is installed on the seventh pipe.
[0033] Furthermore, the waste heat recovery and utilization system also includes a washbasin 80, which is connected to the water tank 20 through an eighth pipe, and a second water distribution valve is installed on the eighth pipe.
[0034] Working principle: The hollow stove basin 10 is installed on the stove. When the stove burner is lit to cook, the residual heat of the flame heats the hollow stove basin 10, which in turn heats the water or air inside the hollow stove basin 10. The temperature monitor inside the hollow stove basin 10 can directly obtain the actual temperature inside the hollow stove basin 10. When the actual temperature inside the hollow stove basin 10 reaches the set temperature (e.g., 70℃, 80℃), the solenoid valve 30 is opened and the water pump 40 is turned on to output water to the water tank 20. When the actual temperature inside the hollow stove basin 10 reaches the set temperature (e.g., 40℃, 50℃), the solenoid valve is turned off and the water pump 40 stops running.
[0035] When the water temperature in the water tank 20 is high, the hot water pump 40 is pumped to the radiator assembly 50 through the first circulation pump on the third pipe, and then the radiator assembly 50 heats the designated space.
[0036] The hot air curtain device 60 is connected to the water tank 20 through the fifth and sixth pipes. When the hot air curtain device 60 is needed to provide heat, the flow regulating valve on the fifth pipe and the second circulation pump on the fifth pipe are opened, thereby outputting the hot water in the water tank 20 to the hot air curtain device 60 to complete the heating.
[0037] The sink 70 is connected to the water tank 20 via the seventh pipe. When hot water is needed for washing dishes and vegetables, the first water distribution valve on the seventh pipe can be opened (water flows through the water pump 40) to release the hot water from the water tank 20.
[0038] The washbasin 80 is connected to the water tank 20 via the eighth pipe. When hot water is needed for washing, the second water distribution valve on the seventh pipe can be opened (water flows through the water pump 40) to allow water to flow out of the water tank 20.
[0039] Water tank 20 is connected to a water supply pipe for supplying water to water tank 20.
[0040] This invention fully utilizes the thermal energy of flames, maximizing over 80% of the residual value of the flame, thus solving problems such as excessive energy waste, high production costs, and failure to meet environmental emission standards for enterprises. The product replaces the original single-layer kitchen stove basin with a double-layered hollow design. The outer layer of the basin has water or air inlets and outlets, allowing residual heat to be converted into usable energy and stored. This can provide hot water supply or space heating for enterprises. The thickness of the basin can be customized according to actual needs. This novel waste heat recovery equipment utilizes the direct temperature of the flame, between 1000℃ and 1300℃, with a recovery rate exceeding 80%.
[0041] Example 2:
[0042] A waste heat recovery system for kitchen utensils, such as Figure 3As shown, the system includes: a hollow furnace basin 10, a water tank 20, a temperature monitor, a solenoid valve 30, and a water pump 40. The hollow furnace basin 10 has a sealed cavity 11, and an outlet 12 and an inlet 13 communicating with the sealed cavity 11 are provided on the hollow furnace basin 10. The water tank 20 is connected to the outlet 12 via a first pipe and to the inlet 13 via a second pipe. The temperature monitor is installed inside the sealed cavity 11 and is used to monitor the cavity temperature in real time. The solenoid valve 30 is installed on the first pipe and electrically connected to the temperature monitor. The water pump 40 is installed on the first pipe and located between the solenoid valve 30 and the water tank 20. The temperature monitor is configured to open the solenoid valve 30 and start the water pump 40 when the cavity temperature reaches a preset threshold.
[0043] Furthermore, the waste heat recovery system also includes a radiator assembly 50, which forms a circulation loop with the water tank 20 through a third pipe and a fourth pipe, and a first circulation pump is installed on the third pipe.
[0044] Example 3:
[0045] A waste heat recovery system for kitchen utensils, such as Figure 4 As shown, the system includes: a hollow furnace basin 10, a water tank 20, a temperature monitor, a solenoid valve 30, and a water pump 40. The hollow furnace basin 10 has a sealed cavity 11, and an outlet 12 and an inlet 13 communicating with the sealed cavity 11 are provided on the hollow furnace basin 10. The water tank 20 is connected to the outlet 12 via a first pipe and to the inlet 13 via a second pipe. The temperature monitor is installed inside the sealed cavity 11 and is used to monitor the cavity temperature in real time. The solenoid valve 30 is installed on the first pipe and electrically connected to the temperature monitor. The water pump 40 is installed on the first pipe and located between the solenoid valve 30 and the water tank 20. The temperature monitor is configured to open the solenoid valve 30 and start the water pump 40 when the cavity temperature reaches a preset threshold.
[0046] Furthermore, the waste heat recovery and utilization system also includes a hot air curtain device 60, which is connected to the water tank 20 through a fifth pipe and a sixth pipe. The fifth pipe is equipped with a flow regulating valve and a second circulation pump.
[0047] Example 4:
[0048] A waste heat recovery system for kitchen utensils, such as Figure 5As shown, the system includes: a hollow furnace basin 10, a water tank 20, a temperature monitor, a solenoid valve 30, and a water pump 40. The hollow furnace basin 10 has a sealed cavity 11, and an outlet 12 and an inlet 13 communicating with the sealed cavity 11 are provided on the hollow furnace basin 10. The water tank 20 is connected to the outlet 12 via a first pipe and to the inlet 13 via a second pipe. The temperature monitor is installed inside the sealed cavity 11 and is used to monitor the cavity temperature in real time. The solenoid valve 30 is installed on the first pipe and electrically connected to the temperature monitor. The water pump 40 is installed on the first pipe and located between the solenoid valve 30 and the water tank 20. The temperature monitor is configured to open the solenoid valve 30 and start the water pump 40 when the cavity temperature reaches a preset threshold.
[0049] Furthermore, the waste heat recovery system also includes a dishwashing sink 70, which is connected to the water tank 20 via a seventh pipe, and a first water distribution valve is installed on the seventh pipe.
[0050] Example 5:
[0051] A waste heat recovery system for kitchen utensils, such as Figure 6 As shown, the system includes: a hollow furnace basin 10, a water tank 20, a temperature monitor, a solenoid valve 30, and a water pump 40. The hollow furnace basin 10 has a sealed cavity 11, and an outlet 12 and an inlet 13 communicating with the sealed cavity 11 are provided on the hollow furnace basin 10. The water tank 20 is connected to the outlet 12 via a first pipe and to the inlet 13 via a second pipe. The temperature monitor is installed inside the sealed cavity 11 and is used to monitor the cavity temperature in real time. The solenoid valve 30 is installed on the first pipe and electrically connected to the temperature monitor. The water pump 40 is installed on the first pipe and located between the solenoid valve 30 and the water tank 20. The temperature monitor is configured to open the solenoid valve 30 and start the water pump 40 when the cavity temperature reaches a preset threshold.
[0052] Furthermore, the waste heat recovery and utilization system also includes a washbasin 80, which is connected to the water tank 20 through an eighth pipe, and a second water distribution valve is installed on the eighth pipe.
[0053] Example 6:
[0054] A kitchen waste heat recovery system includes: a hollow stove basin 10, a water tank 20, a temperature monitor, a solenoid valve 30, and a water pump 40. The hollow stove basin 10 has a sealed cavity 11, and an outlet 12 and an inlet 13 communicating with the sealed cavity 11 are provided on the hollow stove basin 10. The water tank 20 is connected to the outlet 12 via a first pipe and to the inlet 13 via a second pipe. The temperature monitor is installed inside the sealed cavity 11 and is used to monitor the cavity temperature in real time. The solenoid valve 30 is installed on the first pipe and electrically connected to the temperature monitor. The water pump 40 is installed on the first pipe and located between the solenoid valve 30 and the water tank 20. The temperature monitor is configured to open the solenoid valve 30 and start the water pump 40 when the cavity temperature reaches a preset threshold.
[0055] Furthermore, the waste heat recovery and utilization system also includes a micro hydroelectric generator, which is connected to the water tank 20 through the ninth pipe and the municipal pipe. A third circulation pump is installed on the ninth pipe.
[0056] Example 7:
[0057] A kitchen waste heat recovery system includes: a hollow stove basin 10, a water tank 20, a temperature monitor, a solenoid valve 30, and a water pump 40. The hollow stove basin 10 has a sealed cavity 11, and an outlet 12 and an inlet 13 communicating with the sealed cavity 11 are provided on the hollow stove basin 10. The water tank 20 is connected to the outlet 12 via a first pipe and to the inlet 13 via a second pipe. The temperature monitor is installed inside the sealed cavity 11 and is used to monitor the cavity temperature in real time. The solenoid valve 30 is installed on the first pipe and electrically connected to the temperature monitor. The water pump 40 is installed on the first pipe and located between the solenoid valve 30 and the water tank 20. The temperature monitor is configured to open the solenoid valve 30 and start the water pump 40 when the cavity temperature reaches a preset threshold.
[0058] Working principle: The hollow stove 10 is installed on the stove. When the stove burner is lit to cook, the residual heat of the fire heats the hollow stove 10, which in turn heats the air inside the hollow stove 10. When the air in the sealed cavity 11 reaches the set temperature, the temperature monitor sends a signal to the solenoid valve 30. The solenoid valve 30 opens, and a fan is installed on the first pipe to blow hot air directly to the kitchen or living room.
[0059] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A kitchen waste heat recovery and utilization system, characterized in that, include: A hollow furnace basin, wherein a sealed cavity is formed inside the hollow furnace basin, and an outlet and an inlet communicating with the sealed cavity are provided on the hollow furnace basin; A water tank, wherein the water tank is connected to the outlet through a first pipe and to the inlet through a second pipe; A temperature monitor is installed inside the sealed cavity and is used to monitor the cavity temperature in real time. A solenoid valve, which is mounted on the first pipe body and electrically connected to the temperature monitor; and A water pump is installed on the first pipe body and located between the solenoid valve and the water tank; The temperature monitor is configured to open the solenoid valve and start the water pump when the cavity temperature reaches a preset threshold.
2. The kitchen waste heat recovery and utilization system according to claim 1, characterized in that, Also includes: A radiator assembly, wherein the radiator assembly forms a circulation loop with the water tank through a third pipe and a fourth pipe.
3. The kitchen waste heat recovery and utilization system according to claim 1, characterized in that, Also includes: A hot air curtain device is connected to the water tank via a fifth pipe and a sixth pipe.
4. The kitchen waste heat recovery and utilization system according to claim 1, characterized in that, Also includes: A dishwashing sink, which is connected to the water tank via a seventh pipe.
5. The kitchen waste heat recovery and utilization system according to claim 1, characterized in that, Also includes: A washbasin, which is connected to the water tank via an eighth pipe.