Novel kitchen area energy-saving fresh air heating device
By using the new kitchen-specific energy-saving fresh air heating device in the kitchen, which utilizes heat exchangers and filter plates to process fresh air, the problem of existing equipment being unable to improve kitchen air quality has been solved. This achieves effective filtration and heating of fresh air, and improves the utilization efficiency of oil fume heat.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING KECHUANG ENVIRONMENTAL ENG CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-05-26
Smart Images

Figure CN224284850U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen air treatment technology, specifically to a novel kitchen energy-saving fresh air heating device. Background Technology
[0002] "Kitchen area" refers to the functional area or scope related to the kitchen or cooking, including basic functional modules such as food storage area, food preparation area, washing area, and cooking area. The kitchen cooking area will be equipped with equipment such as exhaust fans and range hoods to extract the smoke and oil produced during food cooking.
[0003] Currently, exhaust fans and range hoods are used to improve air quality in kitchen areas. However, while existing fume extraction devices can extract fumes from the kitchen area, they cannot filter and deliver external air into the kitchen area. Therefore, a new type of energy-saving fresh air heating device for kitchens is proposed. Fumes are discharged through a primary heat exchanger and a secondary heat exchanger, while external air enters the kitchen area after being filtered by a filter, a temperature sensor, and an activated carbon filter. Utility Model Content
[0004] To address the problems in the existing technology, this utility model provides a novel kitchen-area energy-saving fresh air heating device. Oil fumes are discharged through a primary heat exchanger and a secondary heat exchanger, while outside air enters the kitchen area after being filtered by a filter, a temperature sensor, and an activated carbon filter plate.
[0005] The technical solution adopted by this utility model to solve its technical problem is a new type of kitchen energy-saving fresh air heating device, including a shell, a primary heat exchanger is provided inside the shell, a secondary heat exchanger is provided inside the shell on one side of the primary heat exchanger, and a fresh air outlet channel and a fresh air inlet channel are respectively fixed to the bottom ends of the shell at the bottom of the primary heat exchanger and the secondary heat exchanger by bolts.
[0006] The inside of the fresh air outlet duct is fixed with an activated carbon filter plate and a catalytic plate from top to bottom by bolts. An electric heater is installed inside the bottom of the catalytic plate of the fresh air outlet duct via a mounting bracket. A fresh air fan is installed inside the bottom of the catalytic plate of the fresh air outlet duct via a mounting bracket.
[0007] By adopting the above technical solution, the high-temperature e-liquid is discharged through the first-stage heat exchanger and the second-stage heat exchanger, and the low-temperature fresh air flowing into the fresh air outlet channel through the second-stage heat exchanger and the first-stage heat exchanger is heated. The activated carbon filter plate and the catalytic plate are used to filter and catalyze the heated fresh air.
[0008] Specifically, a filter is fixed inside the fresh air intake channel by bolts, and rainproof louvers are installed inside the fresh air intake channel.
[0009] Specifically, the fresh air intake channel has an air inlet at the bottom, and the fresh air outlet channel has a fresh air outlet at the bottom.
[0010] Specifically, a fresh air duct is fixed to the top of the housing by bolts, and the fresh air duct is connected to the top of the primary heat exchanger and the secondary heat exchanger.
[0011] Specifically, the housing has an oil fume inlet on one side and an oil fume outlet on the other side.
[0012] Specifically, a thermostat is fixed to one side of the fresh air outlet channel by bolts, the detection end of the thermostat is located inside the fresh air outlet channel, and the catalytic plate is made of oxygen catalyst material.
[0013] The beneficial effects of this utility model are:
[0014] (1) The novel kitchen energy-saving fresh air heating device described in this utility model has a filter in the fresh air inlet channel that filters the low-temperature outdoor fresh air entering the device and can intercept dust particles in the low-temperature fresh air. The clean air then enters the secondary heat exchanger and the primary heat exchanger for heating and temperature rise before flowing into the fresh air outlet channel. It is filtered and catalyzed by the activated carbon filter plate and the catalytic plate, and then drawn by the fresh air fan and discharged from the fresh air outlet to the kitchen area.
[0015] (2) The novel kitchen energy-saving fresh air heating device described in this utility model has high-temperature oil fumes entering the shell and flowing through a primary heat exchanger and a secondary heat exchanger in sequence. The primary heat exchanger uses the dual-channel structure of the heat exchanger to transfer heat to the fresh air, so that the fresh air is heated. The secondary heat exchanger uses the residual heat in the oil fumes to preheat the fresh air flowing through the secondary heat exchanger, thereby improving the utilization efficiency of the heat of the oil fumes while exhausting the oil fumes. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] In the diagram: 1. Shell; 2. Fresh air duct; 3. Fresh air intake duct; 4. Fresh air outlet duct; 5. Primary heat exchanger; 6. Secondary heat exchanger; 7. Thermostat; 8. Activated carbon filter plate; 9. Catalytic plate; 10. Electric heater; 11. Fresh air fan; 12. Filter; 13. Rainproof louvers; 14. Fume inlet; 15. Fume outlet; 16. Air inlet; 17. Fresh air outlet. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] The cooking fumes are discharged after passing through a primary and secondary heat exchanger. Outside air enters the kitchen area after being filtered by a filter, temperature sensor, and activated carbon filter. Figure 1 As shown, the present invention provides a novel kitchen energy-saving fresh air heating device, which includes a housing 1. A primary heat exchanger 5 is provided inside the housing 1. A secondary heat exchanger 6 is provided inside the housing 1 on one side of the primary heat exchanger 5. Fresh air outlet channel 4 and fresh air inlet channel 3 are respectively fixed to the bottom ends of the housing 1 at the bottom ends of the primary heat exchanger 5 and the secondary heat exchanger 6 by bolts.
[0021] The fresh air outlet duct 4 is bolted to an activated carbon filter plate 8 and a catalyst plate 9 from top to bottom. An electric heater 10 is installed inside the fresh air outlet duct 4 at the bottom of the catalyst plate 9 via a mounting bracket. A fresh air fan 11 is installed inside the fresh air outlet duct 4 at the bottom of the catalyst plate 9 via a mounting bracket.
[0022] During use, the high-temperature e-liquid is discharged through the primary heat exchanger 5 and the secondary heat exchanger 6, and then heats the low-temperature fresh air that flows into the fresh air outlet channel 4 through the secondary heat exchanger 6 and the primary heat exchanger 5. The activated carbon filter plate 8 and the catalytic plate 9 are used to filter and catalyze the heated fresh air.
[0023] For example, such as Figure 1 As shown, the present invention also includes a filter 12 fixed inside the fresh air intake channel 3 by bolts, and a rainproof louver 13 provided inside the fresh air intake channel 3.
[0024] In use, filter 12 is used to filter the outdoor fresh air entering the fresh air intake duct 3, and rainproof louvers 13 are used to block objects and rainwater.
[0025] For example, such as Figure 1 As shown, the present invention also includes an air inlet 16 at the bottom of the fresh air inlet channel 3 and a fresh air outlet 17 at the bottom of the fresh air outlet channel 4.
[0026] During use, outdoor low-temperature fresh air flows from the air inlet 16 into the fresh air inlet channel 3, and the fresh air filtered and catalyzed in the fresh air outlet channel 4 is discharged from the fresh air outlet 17.
[0027] For example, such as Figure 1 As shown, the present invention also includes a fresh air duct 2 fixed to the top of the housing 1 by bolts, and the fresh air duct 2 is connected to the top of the primary heat exchanger 5 and the secondary heat exchanger 6.
[0028] During use, the fresh air heated by the secondary heat exchanger 6 flows from the fresh air duct 2 into the primary heat exchanger 5.
[0029] For example, such as Figure 1 As shown, the present invention also includes an oil fume inlet 14 on one side of the housing 1 and an oil fume outlet 15 on the other side of the housing 1.
[0030] During use, the opening of the fume inlet 14 facilitates the entry of high-temperature fumes into the shell 1, and the high-temperature fumes flowing out through the primary heat exchanger 5 and the secondary heat exchanger 6 are discharged through the fume outlet 15.
[0031] For example, such as Figure 1 As shown, the present invention also includes a thermostat 7 fixed to one side of the fresh air outlet channel 4 by bolts, the detection end of the thermostat 7 being located inside the fresh air outlet channel 4, and the catalyst plate 9 being made of oxygen catalyst material.
[0032] When in use, the catalytic plate 9, made of oxygen catalyst material, catalyzes the degradation of pollutants such as formaldehyde and benzene by nano-scale oxygen catalytic factors containing silver ions. The thermostat 7 is used to control the temperature of the fresh air flowing out from the first-stage heat exchanger 5 and to control the heating operation of the electric heater 10.
[0033] In use, high-temperature oil fumes enter the shell 1 through the oil fume inlet 14, first pass through the primary heat exchanger 5, and use the dual-channel structure of the heat exchanger to transfer heat to the fresh air, thus heating the fresh air; the oil fumes after passing through the primary heat exchanger 5 then flow into the secondary heat exchanger 6, using the residual heat in the oil fumes to preheat the fresh air flowing through the secondary heat exchanger 6, thereby improving the utilization efficiency of the oil fume heat while exhausting the oil fumes.
[0034] Outdoor low-temperature fresh air enters the fresh air intake duct 3 through the air inlet 16. It is first filtered by the filter 12, which intercepts dust particles and other contaminants in the low-temperature fresh air. The clean air then enters the secondary heat exchanger 6 and is preheated by the oil fumes. The preheated fresh air flows into the primary heat exchanger 5 through the fresh air duct 2, and after being heated, it enters the fresh air outlet duct 4.
[0035] The activated carbon filter plate 8 and catalytic plate 9 in the fresh air outlet duct 4 filter and catalyze the heated fresh air, adsorb and eliminate odors in the fresh air, and then the fresh air is drawn out by the fresh air fan 11 and discharged from the fresh air outlet 17 to the kitchen area.
[0036] The detection end of the thermostat 7 is located inside the fresh air outlet channel 4. It can detect the temperature of the fresh air flowing from the primary heat exchanger 5 into the fresh air outlet channel 4. When the thermostat 7 detects that the outlet temperature of the primary heat exchanger 5 is lower than the set value, it will control the electric heater 10 to work to heat the fresh air and make it reach the required temperature.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A novel kitchen-area energy-saving fresh air heating device, characterized in that, Includes a shell (1), inside which a primary heat exchanger (5) is installed, and inside the shell (1) on one side of the primary heat exchanger (5) a secondary heat exchanger (6) is installed. At the bottom ends of the shell (1) at the primary heat exchanger (5) and the secondary heat exchanger (6), a fresh air outlet channel (4) and a fresh air inlet channel (3) are respectively fixed by bolts. The fresh air outlet channel (4) is fixed with an activated carbon filter plate (8) and a catalyst plate (9) from top to bottom by bolts. An electric heater (10) is installed inside the fresh air outlet channel (4) at the bottom of the catalyst plate (9) by a mounting bracket. A fresh air fan (11) is installed inside the fresh air outlet channel (4) at the bottom of the catalyst plate (9) by a mounting bracket.
2. The novel kitchen energy-saving fresh air heating device according to claim 1, characterized in that, The fresh air intake channel (3) is fitted with a filter (12) by bolts, and the fresh air intake channel (3) is fitted with rainproof louvers (13).
3. The novel kitchen-area energy-saving fresh air heating device according to claim 1, characterized in that, The fresh air intake channel (3) has an air inlet (16) at the bottom, and the fresh air outlet channel (4) has a fresh air outlet (17) at the bottom.
4. The novel kitchen-area energy-saving fresh air heating device according to claim 1, characterized in that, The top of the housing (1) is fixed with a fresh air duct (2) by bolts, and the fresh air duct (2) is connected to the top of the primary heat exchanger (5) and the secondary heat exchanger (6).
5. A novel kitchen-area energy-saving fresh air heating device according to claim 1, characterized in that, The housing (1) has an oil fume inlet (14) on one side and an oil fume outlet (15) on the other side.
6. A novel kitchen-area energy-saving fresh air heating device according to claim 1, characterized in that, A thermostat (7) is fixed to one side of the fresh air outlet channel (4) by bolts. The detection end of the thermostat (7) is located inside the fresh air outlet channel (4). The catalyst plate (9) is made of oxygen catalyst material.