A kitchen steam generator
By introducing a primary preheating chamber and a secondary preheating chamber into the kitchen steam generator, the waste heat of flue gas is used to preheat water, and heating pipes and baffle structures are added to the combustion chamber, the problem of low heat conversion efficiency of existing equipment is solved, and more efficient heat energy utilization and steam production are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-07
AI Technical Summary
Existing kitchen gas steam generators cannot effectively utilize the waste heat from exhaust gases, resulting in low heat conversion efficiency, fuel waste, and a lack of energy conservation and environmental protection.
The design incorporates a steam furnace body, a primary preheating chamber, and a secondary preheating chamber connected in sequence. Waste heat from the flue gas is used to preheat hot water through the first and second waste heat channels. Spiral heating pipes and baffles are installed in the combustion chamber to increase the water contact area and accelerate boiling. Combined with an insulation shell, this improves the thermal energy utilization rate.
It achieves effective recovery and utilization of waste heat from flue gas, improves heat conversion efficiency and steam generation rate, and enhances the energy-saving and environmental protection performance of the equipment.
Smart Images
Figure CN224470205U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of steam generators, and in particular relates to a steam generator for kitchen use. Background Technology
[0002] A kitchen steam generator is a device specifically designed for the catering industry. It heats water to produce steam using electricity or gas, primarily for cooking, food processing, and kitchen cleaning. A gas-fired steam generator typically includes a water storage chamber, a combustion chamber within the water storage chamber, a steam exhaust pipe connected to the upper end of the water storage chamber, and an exhaust pipe connected to the combustion chamber. Its drawbacks include the inability to recover and utilize the waste heat from the exhaust gas, resulting in low heat conversion efficiency, fuel waste, and a lack of energy conservation and environmental friendliness. Utility Model Content
[0003] The technical problem to be solved by this invention is to provide a kitchen steam generator with higher heat conversion efficiency.
[0004] To solve the above problems, the technical solution adopted by this utility model includes: a steam furnace body, a primary preheating chamber, and a secondary preheating chamber connected in sequence; the steam furnace body includes a water storage chamber, a combustion chamber disposed in the water storage chamber, and a steam discharge pipe connected to the upper end of the water storage chamber; the upper end of the combustion chamber is connected to the upper end of the primary preheating chamber through a first waste heat channel, and the lower end of the primary preheating chamber is connected to the secondary preheating chamber through a second waste heat channel; the primary preheating chamber is provided with a first water pipe connected to the water storage chamber; the secondary preheating chamber is provided with an exhaust gas discharge port at the upper end, a water inlet at the lower end, and a second water pipe connected to the primary preheating chamber; the primary preheating chamber is provided with a set of first preheating pipes connected to the first and second waste heat channels; the secondary preheating chamber is provided with a set of second preheating pipes connected to the second waste heat channel and the exhaust gas discharge port.
[0005] The combustion chamber is equipped with a set of heating tubes arranged in a spiral shape.
[0006] The combustion chamber is provided with a partition between the two ends of the heating tube, and the side wall between the partitions is provided with a through hole that communicates with the water storage chamber.
[0007] The first water pipe is connected to the upper end of the primary preheating chamber and the lower end of the primary preheating chamber, respectively.
[0008] The second water pipe is connected to the upper end of the secondary preheating chamber and the lower end of the water storage chamber.
[0009] An exhaust fan is installed inside the exhaust outlet.
[0010] It also includes an insulation shell covering the steam furnace body, the primary preheating chamber and the secondary preheating chamber.
[0011] The advantages of this kitchen steam generator are as follows: it can recover and utilize the waste heat of the exhaust gas and preheat the incoming water, thereby greatly improving the heat conversion efficiency and the steam generation speed.
[0012] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description
[0013] Figure 1 This is an exploded view of the kitchen steam generator of this utility model;
[0014] Figure 2 This is a cross-sectional view of the kitchen steam generator of this utility model, showing the structure of the steam furnace body and the primary preheating chamber;
[0015] Figure 3 This is a cross-sectional view of the kitchen steam generator of this utility model, showing the structure of the primary preheating chamber and the secondary preheating chamber;
[0016] Figure 4 This is a schematic diagram of the internal structure of the steam furnace body of this utility model. Detailed Implementation
[0017] Reference Figures 1-4As shown, the kitchen steam generator of this utility model includes a steam furnace body 1, a primary preheating chamber 2, and a secondary preheating chamber 3 connected in sequence. The steam furnace body 1 includes a water storage chamber 4, a combustion chamber 5 disposed in the water storage chamber 4, and a steam exhaust pipe 6 connected to the upper end of the water storage chamber 4. The upper end of the combustion chamber 5 is connected to the upper end of the primary preheating chamber 2 through a first waste heat channel 7, and the lower end of the primary preheating chamber 2 is connected to the secondary preheating chamber 3 through a second waste heat channel 8. The upper end of the secondary preheating chamber 3 is provided with a waste gas exhaust port 9, and the primary preheating chamber 2 is provided with a set of first preheating pipes 10 connected to the first waste heat channel 7 and the second waste heat channel 8. The secondary preheating chamber 3 is provided with a set of second preheating pipes 11 connected to the second waste heat channel 8 and the waste gas exhaust port 9. The primary preheating chamber 2 is provided with a first water pipe 12 connected to the water storage chamber 4, and the secondary preheating chamber 3 is provided with a water inlet 13 and a second water pipe 14 connected to the primary preheating chamber 2. Ultimately: the first waste heat channel 7, the first preheating pipe 10, the second waste heat channel 8, the second preheating pipe 11, and the exhaust port 9 are interconnected for exhaust; the water storage chamber 4, the first water pipe 12, the primary preheating chamber 2, the second water pipe 14, the secondary preheating chamber 3, and the water inlet 13 are interconnected for water intake. Through this structure, the waste heat in the first preheating pipe 10 and the second preheating pipe 11 can be used to preheat the incoming water in the primary preheating chamber 2 and the secondary preheating chamber 3, respectively. Experiments show that secondary preheating using waste heat can heat the incoming water to 90-100 degrees Celsius.
[0018] Preferably, the combustion chamber 5 is provided with a set of heating tubes 15 arranged in a spiral shape. The hot air in the combustion chamber 5 is discharged through the heating tubes 15 to increase the contact area with the water storage chamber 4, so that the water inside boils quickly, thereby further increasing the steam generation rate.
[0019] Preferably, the combustion chamber 5 is provided with a partition 16 between the two ends of the heating tube 15, and the sidewall between the partitions 16 is provided with a through hole 17 communicating with the water storage chamber 4. This allows water in the water storage chamber 4 to enter the combustion chamber 5 for heating, causing the water to boil more rapidly, thereby further increasing the steam generation rate.
[0020] Preferably, the first water pipe 12 is connected to the upper end and the lower end of the primary preheating chamber 2, respectively. The second water pipe 14 is connected to the upper end of the secondary preheating chamber 3 and the lower end of the water storage chamber 4, respectively. This allows for sufficient water circulation, thereby improving the preheating effect.
[0021] Preferably, the exhaust port 9 is equipped with an exhaust fan 18 to quickly exhaust the exhaust gas in the combustion chamber 5, thereby improving combustion efficiency.
[0022] Preferably, the system also includes an insulating shell 19 covering the steam furnace body 1, the primary preheating chamber 2, and the secondary preheating chamber 3. This shell is used to insulate and protect the steam furnace body 1, the primary preheating chamber 2, and the secondary preheating chamber 3, thereby further improving thermal energy utilization while ensuring safety.
[0023] The foregoing is not intended to limit the present invention in any way. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.
Claims
1. A steam generator for kitchen use, characterized in that: The steam furnace includes a steam furnace body (1), a primary preheating chamber (2), and a secondary preheating chamber (3) connected in sequence. The steam furnace body (1) includes a water storage chamber (4), a combustion chamber (5) located in the water storage chamber (4), and a steam discharge pipe (6) connected to the upper end of the water storage chamber (4). The upper end of the combustion chamber (5) is connected to the upper end of the primary preheating chamber (2) through a first waste heat channel (7), and the lower end of the primary preheating chamber (2) is connected to the secondary preheating chamber (3) through a second waste heat channel (8). The primary preheating chamber (2) is equipped with a steam discharge pipe (6). The first water pipe (12) is connected to the water storage chamber (4). The upper end of the secondary preheating chamber (3) is provided with a waste gas discharge port (9), the lower end is provided with a water inlet (13) and a second water pipe (14) connected to the primary preheating chamber (2). The primary preheating chamber (2) is provided with a set of first preheating pipes (10) connected to the first waste heat channel (7) and the second waste heat channel (8). The secondary preheating chamber (3) is provided with a set of second preheating pipes (11) connected to the second waste heat channel (8) and the waste gas discharge port (9).
2. The kitchen steam generator according to claim 1, characterized in that: The combustion chamber (5) is provided with a set of heating tubes (15) arranged in a spiral shape.
3. The kitchen steam generator according to claim 2, characterized in that: The combustion chamber (5) is provided with a partition (16) between the two ends of the heating tube (15), and the side wall between the partitions (16) is provided with a through hole (17) communicating with the water storage chamber (4).
4. The kitchen steam generator according to claim 1, characterized in that: The first water pipe (12) is connected to the upper end of the first-stage preheating chamber (2) and the lower end of the first-stage preheating chamber (2).
5. The kitchen steam generator according to claim 1, characterized in that: The second water pipe (14) is connected to the upper end of the secondary preheating chamber (3) and the lower end of the water storage chamber (4).
6. The kitchen steam generator according to claim 1, characterized in that: An exhaust fan (18) is installed inside the exhaust outlet (9).
7. The kitchen steam generator according to any one of claims 1-6, characterized in that: It also includes an insulation shell (19) covering the steam furnace body (1), the primary preheating chamber (2) and the secondary preheating chamber (3).